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تصميم وبناء الماكنترون غير المستقر ذي المجال المغلق لمنظومة البلازما لتحضير كاشف الاغشية الرقيقة النانوية == Design And Construction of Closed Field Unbalanced Magnetron of Plasma System To Prepare Nano Film Detector

اسم المؤلف: عدي عطا حمادي
اسم المشرف: فراس جواد كاظم | محمد خماس خلف
الموضوع العام: علوم الفيزياء
السنة: 2014
الموضوع الدقيق: الفيزياء
الدرجة: دكتوراه
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تم في هذا العمل تصميم وبناء مجمع الماكنترون المزدوج غير المستقر ذي المجال المغلق لغرض استخدامه في منظومة الترذيذ المستمر بالبلازما وقد جرى قياس التوزيع الفضائي للمجال المغناطيسي بين قطبي المنظومة ونمذجته لغرض تحديد التاثيرات الناجمة عن تغيير شكل المجمعين | In the present work, closed - field unbalanced dual magnetron (CFUBDM) system was designed and constructed to be employed in a dc plasma sputtering system. The spatial distribution of magnetic field between the two electrodes was measured and the maximum

مواصفات المواد المتحللة (بولي لاكتك اسد خلائط البولي لاكتك اسد متراكبات البولي لاكتك اسد) == Characterizations of Biodegradable Materials (PLA, PLA Blends, PLA Nanocomposites)

اسم المؤلف: نادية عباس علي
اسم المشرف: فرح طارق محمد نوري
الموضوع العام: علوم الفيزياء
السنة: 2014
الموضوع الدقيق: الفيزياء
الدرجة: دكتوراه
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: في هذا البحث تم استخدام مادة البولي لاكتك اسد والخلائط البولمرية )البولي لاكتك اسد/ السليلوز, البولي لاكتك اسد /شيتوزان, البولي لاكتك اسد /بولي اثلين كلايكول( التي حضرت بطريقة الصب باستخدام مجانس الخلط بنسب 02 % من السليلوز والشيتوزان والبولي اثلين كلايكو | In this work Pure Polylactic acid (PLA) and PLA/MCC, PLA/Cs, and PLA/PEG blends prepared by casting method using shearing mixer with ratio 20% from micro crystalline cellouse, chitosan, polyethylene glycol. Polylactic acid nanocomposites prepare with dif

قياس مستوى النويدات المشعة طبيعية المنشا ومؤشرات الخطورة الاشعاعية لمواد البناء المستخدمة في العراق == Measurement The Concentration of Natural Occurring Radionuclides And Radiation Hazard Indices For Building Materials Used In Iraq

اسم المؤلف: لازم خنيصر شويع
اسم المشرف: شفيق شاكر شفيق
الموضوع العام: علوم الفيزياء
السنة: 2014
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تهدف هذه الدراسة الى تحديد تراكيز النظائر المشعة طبيعية المنشا في 110 عينة من مواد البناء الطبيعية والمصنعة المستخدمة في اعمال البناء في العراق. جمعت العينات من الاسواق والمعامل العراقية الرئيسية المتخصصه ببيع هذه المواد والمنازل التي هي قيد الانشاء, واش | This study is aimed to measure the activity concentrations of naturally occurring and technically enhanced radioisotopes of 110 samples of natural and manufactured building materials collected from deferent Iraqi market. The studied samples consist of; 45

تحضير ودراسة خصائص الخلية الشمسية ZnO : (Cu,Ti) / Si == Preparation And Characterization of ZnO : (Cu,Ti) / Si Solar Cell

اسم المؤلف: خلدون محمود رشيد
اسم المشرف: ميسون فيصل احمد الياس
الموضوع العام: علوم الفيزياء
السنة: 2014
الموضوع الدقيق: الفيزياء
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تم في هذا البحث استخدام طريقة الترسيب بالليزر النبضي بواسطة ليزر Nd : YAG ذي الطول الموجي nm1064?= وبمعدل تكرار Hz6 وفترة نبضة ns10 لترسيب اغشية رقيقة بنوعية عالية لاوكسيد الخارصين النقية والمشوبه بالنحاس والتيتانيوم وبنسب مختلفة(0, 2, 4, 6, 8, 10) wt. % | Pulse laser deposition was used in this research by Nd : YAG laser with ?=1064 nm average frequency, 6 Hz and pulls duration 10 nm) to deposit pure and doped ZnO thin films with copper and titanium with different ratio (0, 4, 6, 8, and 10)wt. % on glass,

كشف الاجسام المدفونة باستخدام مسح رادار الاختراق الارضي == Buried Object Detection Using Ground Penetrating Radar (GPR) Survey

اسم المؤلف: حسين صالح مهدي
اسم المشرف: اسراء جميل محسن
الموضوع العام: علوم الفيزياء
السنة: 2014
الموضوع الدقيق: الفيزياء
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Ground Penetrating Radar (GPR) is a nondestructive geophysical technique that uses electromagnetic waves to evaluate subsurface information. A GPR unit emits a short pulse of electromagnetic energy and its able to determine the presence or absence of a ta

الاستطارة الالكترونية المرنة لنظائر النيكل والخارصين باستخدام انموذج تموج الكثافة المترابط == Elastic Electron Scattering From Nickel And Zinc Isotopes Using Coherent Density Fluctuation Model

اسم المؤلف: حسن فرحان عجيمي
اسم المشرف: عادل خلف حمودي
الموضوع العام: علوم الفيزياء
السنة: 2014
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: The nucleon momentum distributions and elastic form factors for the ground state of 58Ni, 60Ni, 62Ni, 64Ni and 64Zn, 66Zn 68Zn isotopes have been calculated in the framework of the coherent density fluctuation model, in which the nucleon momentum distribu

دراسة التركيب النووي لبعض نوى القشرة fp == Nuclear Structure Study of Some Fp - Shell Nuclei

اسم المؤلف: احمد عدنان حمزة
اسم المشرف: غيث نعمة فليح
الموضوع العام: علوم الفيزياء
السنة: 2014
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تم حساب توزيعات زخوم النيكليونات (NMD ) وعوامل التشكل للاستطاره الالكترونيه المرنه F(q) للحاله الارضيه لبعض النوى الواقعه ضمن القشره fp( ( 48Ti, 54Fe and 55Mn وفقا لانموذج تموج الكثافه المترابط (CDFM) الذي يعبر عنه بدلالة دالة التموج. والتي بدورها تحسب ب | The Nucleon Momentum Distributions (NMD) and elastic electron scattering form factors F(q), for the ground state from some nuclei in the fp - shell (and) , have been calculated in the framework of the Coherent Density Fluctuation Model (CDFM) and expresse

الخصائص التركيبية والبصرية لجسيمات النحاس النانوية المحضرة بطريقة الاستئصال الليزري == Structural And Optical Properties of Copper Nanoparticles Synthesized By Laser Ablation

اسم المؤلف: عبير حازم خالد
اسم المشرف: رعد محمد صالح الحداد
الموضوع العام: علوم الفيزياء
السنة: 2014
الموضوع الدقيق: الاغشية الرقيقة
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: في ھذا للبحث تم تحضير دقائق اوكسيد النحاس الاحادي النانوية باستخدام تقنية الاستئصال الليزرية وباستخدام ليزر النديميوم ياك النبضي وبطول موجي ( 1064 ) نانومتر لقطعة معدنية نقية من النحاس مغمورة في مذيبات مختلفة (ماء مقطر, الماء اللاايوني, الماء المقطر المضا | In this work colloidal Cu2O nanoparticles were prepared by using pulse laser ablation PLA with Q - switching Nd : YAG laser (1064) nm of Copper target immersed in different solvent (distillwater, deionized water, distillwater with additive 0.5mM of poly(N

Effect Of Some Additives On Fire Retardance And Bending Strength Of Unsaturated Polyester (Upe) Composite

اسم المؤلف: محمد هلول مخيلف الشمري
الموضوع العام: علوم الفيزياء
السنة: 2006
الموضوع الدقيق: الفيزياء
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:

دراسة حركية لتاثير بعض المركبات المخفضة للدهون الثيازينات والثياديازول على الكرياتين كاينيز و3 - هيدروكسي - 3 - مثيل كلوتاريل كو انزيم - اي ريدكتيز في امصال مرضى ارتفاع الدهون والفئران المختبرية التي تم حث ارتفاع الدهون فيها == Kinetic Study of The Effect of Some Novel Lipid Lowering Thiazines And Thiadiazole Compounds On Creatine Kinase And 3 - Hydroxy - 3 - Methyl - Glutaryl - Coa Reductase Activities In Sera of Hyperlipidemia Patient’s And Wister Mice With Induced Hyperlipide

اسم المؤلف: تمارة احمد عبد الكريم العبيدي
اسم المشرف: زينب منيب مالك الربيعي | غيد حسان عبد الهادي العبيدي
الموضوع العام: علوم الكيمياء
السنة: 2014
الموضوع الدقيق: الكيمياء
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تمثل الستيرويدات فئة هامة من العقاقير الطبيعية وكذلك الصناعية نظرا لقدرتها على اختراق الخلايا واداء بعض الوظائف البيولوجية الاساسية وبشكل رئيسي هي عوامل مضادة للفيروسات ومضادات للاورام. وتقسم الرسالة الحالية على ثلاثة فصول.يمثل الفصل الاول مقدمة عامة حو | Steroids represent an important class of natural as well as synthetic drugs because of their ability to penetrate cells and perform some of the most fundamental biological functions mainly as antitumor and antiviral agents. The present thesis is devided into three chapters.The first chapter represented a general introduction concerning the structures of some potent steroids, and the pathways of the synthetic adrenal steroids as well as their pharmacological importance in medicine, in general. This part is focused mainly also on the pregnenolone as an important potentially active steroid, including its structural modification at the hydroxyl and keto groups at C - 3 and C - 20 and their uses as antitumor agents. Mitsunobu, Suzuki reactions and aldol condensation as well as chalcon formation and their application at steroids have been described. The second chapter is concerned with the experimental work which included different synthetic methodology.The third chapter is the main part of the thesis, described the synthesis of new 3? - pregnenolone ester derivatives at C - 3 via Misunobu reaction of the carboxylic acid derivatives, such as : rhodamin B, indomethacin, naproxen, protocatecuic acid, vanillic acid and p - coumaric acid, which showed inversion in configuration at the ester group at C - 3. In addition, the synthesis of 17 - (4 - chloro - chalconyl)pregnen - 3? - ol has been described, which then treated with various substituted phenylboronic acids such as : 2,4 - difluoro - , 5 - carboxy - 3 - nitrop - ,4 - fluoro, 4 - thiomethyl - , 4 - hydroxy - , 2,4, - dimethoxy - , 4 - trimethylsilyl, 2 - triflouromethyl - , 3 - cyano, 4 - ethoxyphenyl boronic acids under Suzuki cross - coupling reaction conditions using Pd(PPh3)4 as a catalyst and Na2CO3 as a base to give the (E) - 3 - (substituted - [1,1’ - biphenyl] - 4 - yl) - 1 - (3? - hydroxy - pregnen - 17 - yl) - prop - 2 - en - 1 - one. Two compounds, 17 - acetyl - 5 - pregnen - 3? - yl) - 2 - (2,6 - bis(diethylamino) - 9H - xanthen - 9 - yl)benzoate, and 17 - ((E) - 3 - (4 - chlorophenyl)acryloyl) - 5 - pregnen - 3? - yl) - 2 - (2,6 - bis(diethylamino) - 9H - xanthen - 9 - yl)benzoate have been synthesized via coupling reaction using DCC as a coupling reagent to afford these ester with retention in configuration, aiming to study their fluorescence properties. Moreover, tritylation of the pregnenolone has been described to protect the alcohol at C - 3 during the structural modification of keto group at C - 20 under basic medium. The structures of all the synthesized compounds have been assigned from their 1H, 13C, and 2D NMR (HSQC, HMBC, COSY, NOESY) spectroscopy as well the as theoretical calculations of the HOMO and LUMO energies of the trans and cis isomers of the chalconyl pregnenolone aryl derivatives to compare them with the NMR data, which showed that trans isomer is energetically more favoured.Furthermore, the flourescence proroperties of the two rhodainyl pregnenolone esters have been studies which one show remarkable quantum yield (?F) in comparison to Rhodamin B itself.The anti - HIV activity of some arylated chalconyl pregnenolone derivatives have been studies and one of these analogues having diflouro substituents exhibited remarkable activity against HIV - 1 and 2. Therefore, the molecular modeling study of this analogue is performed and showed two hydrophobic interactions and one hydrogen bonding with the amino acids residues of the reverse transcriptase enzyme of HIV.

تحسين حماية التاكل للمعادن (الخارصين، النحاس، الالمنيوم، الحديد الكربوني والحديد المقاوم للصدا 316) في ماء البحر الصناعي باستخدام الطلاء بالمواد النانوية == Corrosion Protection Enhancement Of; Zn, Cu, Al, Carbon Steel And Stainless Steel 316 In Artificial Seawater By Coating With Nanomaterials

اسم المؤلف: رائد عبد شاكر محمود
اسم المشرف: عبد الكريم محمد علي جبر السامرائي
الموضوع العام: علوم الكيمياء
السنة: 2014
الموضوع الدقيق: الكيمياء
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: الهدف من هده الدراسة هو تقدير تاثير بعض مشتقات الثياديازول والثيازين الجديدة التحضير على فعالية كل من الانزيمين الكرياتين كاينيز و3 - هيدروكسي - 3 - مثيل كلوتاريل كو - انزيم اي ريدكتيز بالاضافة الى قياس صورة الدهون في مرضى ارتفاع الدهون والفئران المختبرية | The aim of this study is to evaluate the effect of some novel prepared derivatives of thiadiazole and thiazine on the activities of creatine kinase (CK) and 3 - hydroxy - 3 - methylglutaryl CoA reductase(HMGR) in addition to lipid profile in sera of hyperlipidemic patients and in mice induced hyperlipidemia by feeding cholesterol rich diet.The study includes two parts; in vitro study : Sixty individuals with age ranged between (40 - 60) years were enrolled in this study. They were divided into two groups; first group (G1) consists of 30 healthy individuals as a control group with body mass index (BMI) (25.67). The second group (G2)consists of 30 patients with hyperlipidemia and BMI (26.48) which diagnosed by physician. The patients attended the Ibn - Al Naphes hospital during November 2013 to February 2014. Patients with high blood viscosity, diabetes mellitus, renal failure as well as those who are under treatment with statins were excluded. The serum which obtained used in the determination of lipid profile[total cholesterol(Tch),triglyceride(TG), high density lipoprotein(HDL - c), very low density lipoprotein(VLDL - c)], fasting blood glucose(FBG), aspartate transaminase (AST), alanine transaminase(ALT) and C - reactive protein(CRP).Four organic compounds 3 - (4 - (dimethylamino) phenyl) - 2,3 - dihydro - 2 - (3 - nitrophenyl benzo[1,3 - e]thiazin - 4 - one[I], 5 - (4 - imethylamino)benzylideneamino) - 1,3,4 - thiadiazole - 2 - thiol[II], 2 - (4 - dimethylamino)phenyl) - 2,3 - dihydro - 3 - (5 - mercapto - 1,3,4 - thiadiazol - 2 - yl)benzo[1,3 - e]thiazin - 4 - one[III], and N - (4 - (dimethyl amino)benzylidene) - 5 - (isopropylthio) - 1,3,4 - thiadiazole - 2 - amine[IV] were used in this study to test their antihyperlipidaemic ability and their effect on CK and HMGR activities. The results revealed that compounds(III and IV)showed an activation effect in all concentrations on CK and HMGR activities, while compounds(I and II) showed an inhibitory effect in some concentrations for CK and in all concentrations for HMGR. Therefore, compounds (III and IV) were excluded from this study. The results showed that (10 - 4M) for compound I and (10 - 5M) for compounds II give the best inhibition percentage among the other concentrations on CK and HMGR activities which the kinetic study throughout with these concentrations for these compounds. Simvastatin, which considered as standard drug for lipid lowering, was used for comparsion with the potency of compounds I and II on HMGR activity in treatment of hyperlipidaemia. The results showed an inhibitory effect of simvastatin on HMGR activity with percentage inhibition 88%. The effect of compounds (I and II) on ALT and AST were examined in (10 - 4 M) for compound I and (10 - 5M) for compound II in vitro study. The results showed the inhibitory effect of compounds I in concentration (10 - 4 M) and compound II in concentration (10 - 5M) on ALT and AST activities.The Vmax, Km and type of inhibition for compounds I and II on CK and HMGR activities were studied by using Lineweaver - Burk plot. The results showed that also compound I at 10 - 4M was considered to be a noncompetitive inhibitor for CK activity with Vmax values (1000 and 344.82)U/L for uninhibited and inhibited enzyme respectively and Km value (10) mmol/L. The results also showed that compound II at concentration 10 - 5M was considered to be a competitive inhibitor for CK activity with Vmax value (588.23)U/L and Km values (5.51 and 4)mmol/L for the uninhibited and inhibited enzyme respectively.In vitro, the effect of compound (I) with concentration (10 - 4M) and compound (II) with concentration (10 - 5M) were examined in vivo study. The study was carried out with sixty male Wister mice aged seven to eight weeks and theirweight were (180 - 200 g) ,obtained from animal house , in College of Medicine, Baghdad University. The mice were grouped as follow : group one (12 mice) as control group, group(2) : consists of 48 mice in which the mice were daily administered cholesterol (25mg/k/day), in coconut oil 6% and creamy cheese for 28 days. Lipid profile were measured for twelve mice chosen randomly from G2 to diagnosis hyperlipidemia. Then group2 is subdivided into three groups as follows : group (2.A) : (12 mice) as positive control group in which the mice were daily administered simvastatin (40mg /day) as standard drug for hyperlipidemia, group 2B : (12 mice) in which the mice were daily treated with (10 - 4)M of compound (I)via drinking water for 20 days and Group(2.C) : (12 mice) in which the mice were daily treated with (10 - 5)M of compound II for 20 days. The results showed significant elevation in levels of Tch, TG, LDL - c and VLDL - c, while there is significant reduction in HDL - c levels in G2 comparing to control group(G1), after administration of fat rich diet. Simvastatin, compound I with concentration (10 - 4M) and compound II with concentration (10 - 5M) were administrated to G2A, G2B and G2C respectively. Also, the results showed that the activities of CK reduced for group G2B and G2C while it is increased for G2A. The results also showed that the activities of HMGR were reduced in the three treated groups. The results revealed that compounds I and II exhibit more potent antihyperlipidaemic effect than simvastatin. Also, compound I showed more potent antihyperlipidaemic effect than compound II.The results revealed that compounds I and II showed a noncompetitive inhibitor effect on CK with Vmax values(1000and 166.6) U/L for uninhibited and inhibited enzyme respectively and Km value (0.6) mmol/L for compound I, and with Vmax vales (1000 and 250)U/L for uninhibited and inhibited enzyme respectively and Km value (0.84) mmol/L for compound II.In conclusion, the novel synthetic compounds (I and II) seem to be of interest in the development of new antihyperlipidaemic agents that exhibit inhibition effect on CK while statins cause increase in this enzyme. Also these compounds exhibit inhibition effect on HMGR activity more than simvastatin, which is a key enzyme in cholesterol synthesis.

تحضير مركبات عضوية جديدة ذات صفات بلورية سائلة == Preparing of New Organic Compounds With Liquid Crystalline Properties

اسم المؤلف: محمود عبد الستار يحيى القزاز
اسم المشرف: ابتسام خليفة جاسم
الموضوع العام: علوم الكيمياء
السنة: 2014
الموضوع الدقيق: الكيمياء الفيزيائية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: يهدف هذا العمل لدراسة امكانية طلاء سطوح بعض المعادن مثل الفولاذ المقاوم للصدا 316، الحديد الكربوني، النحاس، الالمنيوم والزنك، بالمواد النانوية لتحسين مقاومة التاكل وذلك باستخدام اثنين من التقنيات، الاولى بواسطة الطلاء بالالياف النانوية لمادة متعدد الانيلي | This work aims to study the possibility of coating the surfaces of some metals such as stainless steel 316, carbon steel, copper, aluminum, zinc, with nanomaterials to improve the corrosion resistance using two techniques, first by coating with polyaniline nanofiber using electropolymerization of aniline monomer and the second technique by TiO2 nanoparticles via sol - gel process starting from titanium isopropoxide. The work focused on getting thin and homogeneous layer to cover the entire surface of the metal and protect it from corrosion in artificial seawater solution (3.5% NaCl) at 293, 303, 313, and 323 K.Atomic Force Microscope (AFM), Scanning Electron Microscope (SEM), Energy dispersive x - ray (EDX), x - ray photoelectronic spectroscopy (XPS), and x - ray diffraction (XRD) were used to diagnose and describe the structure and morphology of the layers that cover the surface of the metals under investigation, and finally the corrosion parameters ;corrosion potential (Ecorr), corrosion current (Icorr), protection efficiency (PE%), polarization resistance (Rp) and the effect of temperature on the inhibition efficiency in the absence and presence of polyaniline (PANI) or TiO2 coating at temperature ranging from 293 to 323 K were obtained and expressed as; Ea , ?H*, ?S*, and ?G* of all samples were estimated from Tafel plots using potentiostatic technique.The SEM and AFM images of PANI films reflect nanofibers (diameter from 50 to 70 nm); the thicknesses were measured by special AFM scans. They showed values between )700 to 1564 nm(, which may be attributed to the differences in oxidation - reduction potentials of the metals. The XRD patterns of the deposited PANI showed duplicate broad scattering peaks around 2? of 20? and 25?.The AFM images of TiO2 nanoparticles deposited on specimens revealed that the layer was extremely smooth, the particles are small spherical and the average diameter between 26 and 38 nm.The shifts in Ecorr of the uncoated with comparison of the PANI or TiO2 coated samples were small for; S.S316, C.S, Cu, Al, and Zn which means that the anodic and cathodic reactions affected by the same extent.The Rp of the PANI and TiO2 coated substrate was always more than the uncoated ones that attributed to the weak conductivity of PANI and the semiconducting properties of the Titania. All coated metals with PANI or TiO2 exhibited good degree of corrosion protectiveness. For PANI the PE ranged between 56 and 92 % and the best results was achieved for Zn metal this may attributed to the high corrosion values of the bared Zn, while TiO2 coating showed PE at the range of 68 and 93% and the best was for Al metal. The protection efficiencies showed small changes by increasing the temperature but for TiO2 in some cases the PE somehow increased with increasing the temperature. The data showed that the thermodynamic activation functions (Ea and ?H*) of the corrosion of the coated samples are higher than those of the uncoated ones indicating more energy barrier. The entropy of activation ?S* for the uncoated and coated samples are always negative ,this indicates that the activated complex in the rate determining step represents an association rather than a dissociation step, the measured ?G* values takes positive values and showed almost small change with increasing temperature, indicating that the activated complex was not stable and the probability of its formation decreased somehow with rise in temperature and the ?G* values for coated samples reveal that in the activated corrosion complex becomes less stable as compared to the uncoated specimens.Single cyclic potentiostatic tests conducted at 293 K to follow up the pitting probabilities of each metal in seawater before and after coating. The I - V plots indicated that only SS316 and Aluminium specimens suffer from pitting corrosion and the two types of coating reduces the pitting area of the hysterias loop with pushing the pitting potentials for more positive values

دراسة البلمرة الكهروكيمياوية وخواص حماية التاكل لطلاء متعدد البايرول على الفولاذ الكاربوني والفولاذ المقاوم للصدا == An Investigation of Electropolymerization And Corrosion Protection Properties of Polypyrrole Coating On Carbon Steel And Stainless Steel

اسم المؤلف: رواء عباس محمد
اسم المشرف: عبد الكريم محمد علي جبر السامرائي
الموضوع العام: علوم الكيمياء
السنة: 2014
الموضوع الدقيق: الكيمياء
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تم تحضير سلسلة من مشتقات 1, 2, 4 - ترايزول بواسطة تفاعلات الغلق ,حضر حامض البنزويك هيدرازايد (1) بواسطة تفاعل مثيل بنزويت مع الهيدرازين ثم تفاعل المركب (1) مع CS2 في محلول كحولي قاعدي ليعطي ملح البوتاسيوم (2). حضر المركب (3) بواسطة غلق ملح البوتاسيوم (2)م | A series of 1,2,4 - triazole derivatives were synthesized by cyclization reaction, the benzoic acid hydrazide (1) was synthesized by reaction of methyl benzoate with hydrazine hydrate then compound (1) was reacted with CS2 in solution of alkali ethanol to give potassium dithiocarbazinate salt (2) , the basic nucleus 4 - amino - 5 - phenyl - 1 - 4H - 1,2,4 - triazole - 3 - thiol (3) was prepared by cyclization of potassium salt (2) with hydrazine hydrate using water as solvent under reflux condition. compound (3) was subjected to addition reaction with different aromatic aldehydes to synthesize Schiff bases (4a,b) which were cyclized by treating with thioglycolic acid to prepare compounds (5a,b).compounds (6) and (7) obtained by cyclization reaction of compound (3) with urea and thiourea. Also in this research, 1,3,4 - thiadiazole derivatives were synthesized by cyclization of thiosemicarbazied with substituted carboxylic acid and sulphuric acid, to yield 2 - amino - 5 - R - 1,3,4 - thiadiazole (8). Schiff bases formation (9a,b) were by reflux of aromatic aldehyde with 2 - amino - 5 - R - 1,3,4 - thiadiazole (8) in the presence of absolute ethanol. Compounds (10a,b) were prepared by cyclization reaction of compounds (9a,b) with thioglycolic acid.The Synthesized compound were confirmed by their melting point ,FTIR ,U.V - visible ,1HNMR spectra and evaluated for their antioxidant activity by using stable free radical 1,1 - diphenyl - 2 - picryl - hydrazyl DPPH. of all tested compounds. compound (5b) was the most active in all concentrations compared to standard Ascorbic acid with an IC50 value 5.84 ?g/ml. In this study, the cytotoxic effects for compounds (5a),(5b),(6),(7),(10a),(10b) were studied in one cultured cellular models (MCF7 cell line) breast cancer (at different concentration) compared to doxorubicin as positive control by cell viability assay (MMT assay), compound (5b) showed the highest cytotoxicity effect with an IC50 value =56.98?g/ml.Also, we examine the cytotoxic effects of gold III complex (AuL2) of bi - dentate ligand (5a) in one cultured cellular models (MCF7 cell line) by High Content Screening and analysis (HCS). The inhibitory effect of AuL2 on breast cancer cell growth was due to induction of apoptosis as evidenced by Annexin V staining and cell shrinkage. We found that AuL2 - mediated lead to disruption of mitochondrial membrane potential (MMP), cell membrane permeability, and release of cytochrome c from the mitochondria into the cytosol. suggesting (AuL2 ) as a potential MCF7 inhibitor. Thus, we suggest that (AuL2) may have therapeutic value in breast cancer treatment worthy of further development. Bis(2 - (4 - Dimethylamino - phenyl) - 3 - (3 - mercapto - 5 - phenyl - [1,2,4]triazol - 4 - yl) - thiazolidin - 4 - one)gold(III) chloride. monohydrate

تحضير وتشخيص المركبات الحلقية غير المتجانسة الجديدة والمشتقة من الجالكونات == Synthesis And Characterization of New Heterocyclic Compounds Derived From Chalcones

اسم المؤلف: نبراس مظفر جميل
اسم المشرف: جمبد هرمز توما | ضحى فاروق حسين
الموضوع العام: علوم الكيمياء
السنة: 2014
الموضوع الدقيق: الكيمياء الفيزيائية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: يتقصى البحث امكانية الحصول على طبقة طلاء رقيقة ومتجانسة لبوليمر البايرول على بعض السبائك مثل الفولاذ المقاوم للصدا 316 والفولاذ الكربوني بواسطة البلمرة الكهروكيميائية لمونمر البايرول ودراسة امكانية تحسين مقاومة التاكل في مختلف الاوساط البيئية مثل المياه ا | This research focuses on getting thin and homogeneous polypyrrole (PPy) layer on carbon steel (45) and stainless steel (316) alloys by electropolymeriztion procedure of pyrrole monomer, and study the possibility of improving the corrosion resistance in different medias; saline water (3.5% NaCl), acidic media (1M H2SO4) and basic media (1M NaOH) at different temperature of 293, 303, 313 and 323 K. The deposited PPy layer on samples under investigation were examined by Atomic Force Microscope (AFM), Scanning Electron Microscope (SEM), Visible and Ultraviolet Spectroscopy (UV - Vis), Fourier Transform Infrared Spectroscopy (FT - IR), Thermogravimetric Analysis (TGA) and X - Ray Diffraction (XRD).The corrosion parameters are including corrosion potential (Ecorr), corrosion current (icorr), protection efficiency (%PE), polarization resistance (Rp) and the effect of temperature on the inhibition efficiency in the absence and in the presence of PPy coating at temperature ranging from 293 to 323K were obtained and expressed as; Ea, ?H*, ?S*, and ?G* of all samples were estimated from Tafel plots using potentiostatic technique.The SEM and AFM images of PPy films revealed a nanofiber like structure; diameter from 20 to 120 nm, the thicknesses were measured by gravimetric and special AFM scans, they showed values between 1300 to 1450 nm. UV - Vis studies showed that the PPy films exhibit weaker absorption peak at 477 nm and stronger absorption peak at 906 nm and the XRD patterns of the deposited PPy show two peaks around 2? of (43o) and (50o).The shift in Ecorr of the uncoated and of the PPy coated samples are between ( - 600 to - 200 mV) and ( - 200 to 100mV) for CS and SS316 respectively.The protection effectiveness of all PPy coated specimens showed remarkable degree of enhancement, and the %PE ranged between (30 to 80%) for CS and (78 to 96%) for SS316 in all medias.The values of Ea and ?H* of the coated PPy metals are always higher than the uncoated ones which indicate more energy barrier. The negative entropy ?S* for the uncoated and coated samples indicates that the activated complex in the rate determining step represents an association rather than a dissociation step, the measured ?G* values takes positive values and showed almost small change with increasing temperature, indicating that the activated complex was not stable and the probability of its formation decreased somehow with rise in temperature and the ?G* values for coated samples reveal that in the activated corrosion complex becomes less stable as compared to the uncoated specimens.Single cyclic potentiodynamic tests conducted at 293 K to follow up the pitting probabilities of each alloy in all medias before and after coating, the I - V plots indicated that only SS316 in salty media specimens suffer from pitting corrosion and the PPy coating reduces the pitting area of the hysterias loop with pushing the pitting potentials for more positive values

تقدير التعكرية لفصائل منتخبة باستخدام التشعيع بمصفوفة من ثنائي وصلة باعث وبمتحسسات شمسية بتقنية الحقن الجرياني المستمر : دراسة وتطبيق == Turbidimetric Determination of Some Selected Species Via The Use of Linear Array Light Emitting Diode Irradiation With Solar Cell In Continuous Flow Injection Analysis : Study And Application

اسم المؤلف: محمد كاظم حمود
اسم المشرف: عصام محمد علي شاكر الهاشمي
الموضوع العام: علوم الكيمياء
السنة: 2014
الموضوع الدقيق: الكيمياء
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: في هذا البحث تم تقدير المركبات(SMX,TMP,CAF,HYO and PAR) باستخدام المشتقات الطيفية (الاولى , الثانية ,الثالثة والرابعة). على شكل امزجة ثنائية للادوية بواسطة تطبيق التقاطع الصفري كما يلي : 1 - مزيج السلفاميثاكسازول والترايميثوبريم باستخدام المشتقة الاولى و| This research includes determination of drugs SMX, TMP, CAF, HYO and PAR using derivative spectrophotometry (first, second, third and fourth derivative) were developed for binary mixture by applying zero - crossing technique for pure synthetic mixture and their pharmaceutical formulation as follows : 1. SMX with TMP mixture : SMX was determined by applying 1D&4D teach s at 288.0 and 257.8 nm (zero crossing point of TMP) with linear concentration ranges (2 - 30) and (2 - 25) mg/L , r = 0.9996 and r = 0.9992 LOD = 0.750 and LOD = 0.360 mg/L and TMP was determined by applying 4D teach at 251.5 nm (zero crossing point of SMX) with concentration range (2 - 30) mg/L , r = 0.9995 and LOD = 0.382mg/L. The RSD were 0.255, 0.280 and 1.136 for SMX and TMP respectively and applied for (TRIMOL - 400SMX, 80TMP mg) and (METHOPRIM - 400SMX,80TMP mg).2. PAR with CAF mixture : PAR was determined by applying 3D teach at 275.8 nm (zero crossing point of CAF).With linear concentration range (2 - 35) mg/L , r = 0.9987and LOD=0.445mg/L. And CAF was determined by applying 4D teach at 294.7 nm (zero crossing point of PAR). With linear concentration range (2 - 35) mg/L , r = 0.9995 and LOD = 0.162 mg/L. The RSD was 0.222 for PAR and 0.130 for CAF and applied for (PANADOL EXTRA - 500PAR, 65CAF mg).3. PAR with HYO mixture : PAR was determined by applying 1D&2D teach s at 297.4 and 303.5 nm (zero crossing point of HYO) with linear concentration ranges (2 - 30) and (2 - 30) mg/L , r = 0.9998 and r = 0.9987 LOD = 0.081 and LOD = 0.250 mg/L and HYO was determined by applying 1D teach at 215.9 nm (zero crossing point of PAR) with concentration range (2 - 25) mg/L , r = 0.9997 and LOD = 0.091mg/L. The RSD were 0.107, 0.400 and 0.342 for PAR and HYO respectively and applied for (SPAZMOTEK PLUS - 500PAR,10HYO mg). This thesis has mainly been structured in three different chapters, each one containing the following information : Chapter one provides a short historical review with the analytical performance characteristics of UV - visible are described. The applications of UV and DS in pharmaceutical and SMX, TMP, CAF, HYO and PAR analyses and their mixture.the general and specific objectives of thesis are reported. Chapter two corresponds to the experimental part. Reagents, instruments, procedures and detail protocols for the preparation of standard solution and pharmaceutical sample which used in this study are reported.Chapter three contains the experimental results and discussion that lead to the possibility of successful applications which used DS to determine the concentration of each material in drugs.

نمط جديد للتحليل بالحقن الجرياني المستمر باستخدام نظام تشعيع متعدد القنوات مرتبة بهيئة مصفوفة خطية واثنان من الخلايا الشمسية لقياس التعكرية لتقدير الفصائل التحليلية ذات الاهمية : دراسة وتطبيق == New Mode of Cfi Analysis Using Multiple Channel Irradiation System In A Linear Array Arrangement With Twin Solar Cells For Turbidimetric Determination of Analytically Interesting Species : Study & Application

اسم المؤلف: عمر اياد ياسين القيسي
اسم المشرف: نغم شاكر تركي العوادي
الموضوع العام: علوم الكيمياء
السنة: 2014
الموضوع الدقيق: الكيمياء
الدرجة: دكتوراه
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: الفصل الاول : يشمل الفصل الاول مقدمة عن تفاعلات الترسيب، مبادئها، ميكانيكية تكوين الرواسب، انواع الرواسب. وكما يتضمن الفصل الاول مقدمة عن الضوء والنظرية الكهرومغناطسية، وتداخل الضوء مع المادة (الانعكاس، الانكسار، النفاذية، الامتصاص). ناقش الفصل الاول بشكل

دراسة مقارنة ترددات الاهتزاز والصفات الفيزياوية والطاقية لوحدات بناء جزيئة الفلرين و(ZigZag) (SWCNT) باستخدام طريقة ميكانيك الكمي == Comparative Study of Vibrational Frequencies, Physical And Energetic Properties For Units Construction of Fullerene Molecule And (ZigZag) (SWCNTs) Using Quantum Mechanical Method

اسم المؤلف: خالدة عبيد سماوي
اسم المشرف: رحاب ماجد كبة
الموضوع العام: علوم الكيمياء
السنة: 2014
الموضوع الدقيق: الكيمياء التحليلية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Chapter one : Includes an introduction of the light scattering, types of light scattering and its relation ship to the size of precipitate particles which causing the scatter of light. It also involves an introduction to the concept of turbidity and nephelometry for the scattering of incident light, units of both these, as well as an introduction of light emitting diode. This chapter also describes an introduction to flow injection analysis, its principles of the FIA, dispersion, diffusion law , kinds and application and finally followed with the aims of the project.Chapter two : Comprises a complete description for the chemicals used, their preparations in addition to describe the components of flow injection system.Chapter three : consists of two parts : First part : Describes the design of Ayah 6SX1 - T - 2D solar cell CFI Analyser. Also, a full well clear representation of the expected echanism of what might be happened inside the measuring cell for what was measured whether turbidity solutions (measured reflection of incident light by the presence of precipitate particles surface) or a coloured transparent solutions will act normally as absorbance measurement. In second part : A description for the calculation of dilution factor toevaluate the designed manifold system in continuous flow injection analysis via the chasse and following an air bubble through the whole design. Chapter four : Describes the efficiency and its capability of Ayah 6SX1 - T - 2D solar cell CFI Analyser in distinguishing between precipitated and coloured transparent solutions.For precipitate reaction product gives a positive responses by the effect of reflection , this method is used to determine Cd(II) ion. A method is based on the formation of a yellowish white precipitate for the complex Cd3[Fe(CN)6]2.The linearity of Cd (II) ion is ranged from 0.05 to 12 mmol.L - 1, with correlation coefficient r= 0.9951, limit of detection (LOD) 25.29 ng/sample (3SB)(S/N=3) and the percentage relative standard deviation for 4 and 8 mmol.L - 1 less than 1 % (n=5). This method has been applied successfully to determine a Cd (II) ion in a random river samples. Also provided a comparison between the new method with the classical method (HANNA instrument for turbidity measurement) using the standard additions method via the use of ANOVA - treatments. It was noticed that there is a significant difference at ?=0.05 between the two methods at level < 0.05 was obtained.On that basis the new method can be accepted as an alternative analytical method.While a coloured transparent solutions gives a negative responses, this idea is applied for the determination of vanadium (V) ion. This method is based on oxidation of pyrogallol by vanadium (V) ion in acidic meadium to form color species. The linear dynamic range for the instrument response versus vanadium(V) concentration was 1 - 200 mg.L - 1 with correlation coefficient r = 0.9920. The limit of detection (S/N=3) was 70 ng/ sample from the step wise dilution for the minimum concentration in the linear dynamic range of the calibration graph with RSD % for the repeatability lower than 1% for 90 mg.L - 1 (n=5) concentration of vanadium(V). The method was applied successfully for the determination of vanadium (V) in three river samples. A comparison was made between : two methods proposed method with classical method (UV - Vis spectrophotometry at wave length 427 nm) using the standard addition method via the use of paired t - test. It was noticed that there was no significant difference betweentwo methods at 95 % confidence level. Chapter five : Metronidazole (MTZ) and Mebeverine hydrochloride (MVH) are determined in pharmaceutical preparation as alternative analytical procedures. That were developed by continuous flow injection analysis via turbidimetric (T0 - 180 o).For metronidazole (MTZ), the developed method was based on the formation a greenish yellow precipitate as an ion pair complex by reaction between phosphomolybdic acid with metronidazole in aqueous medium. Linear dynamic of metronidazole is ranged from 0.05 - 8 mmol.L - 1,with correlation coefficient r = 0.9821. The limit of detection (S/N= 3 )(3SB)=171.15 ng/sample from the step wise dilution for the minimum concentration in the linear dynamic ranged of the calibration graph with RSD% lower than 0.5% for 4, 4.5 mmol.L - 1 (n=5) concentration of metronidazole. The method was applied successfully for the determination of metronidazole in three pharmaceutical drugs. A comparison was made between the newly developed method analysis with the classical method (HANNA instrument for turbidity measurement) using the standard additionmethod via the use of t - test. It was noticed that there was no significant difference between two methods at 95 % confidence level. For mebeverine hydrochloride (MVH) is determined by formation of a pinkish banana color precipitate as an ion pair complex between Phosphotungstic acid with mebeverine hydrochloride in aqueous medium.The linearity is ranged form 0.05 to 12.5 mmol.L - 1, with correlation oefficient r=0.9966, limit of detection (S/N=3)(3SB)= 521.92 ng/sample and RSD% (n=6) at 2 and 6 mmol.L - 1 MVH concentration less than 1% was obtained. The method was applied successfully for the determination of mebeverine hydrochloride in three pharmaceutical drugs using standard addition method. A comparison was made between the quoted value and the practically found values for three different kinds of drug by t - test. It showedthat there was no significant difference between the quoted value of each individual company with calculated t - value at 95% confidence interval from developed method.Chapter Six : Summarizes a set of conclusions based on the results of this research work which relates to the use of new patterns and methods for the determination of some analytical species by the developed FIA technique, as well as, some future prospects for the homemade FIA system.

التقدير الطيفي لبعض المركبات العضوية المعوضة والمستحضرات الصيدلانية من خلال الاكسدة بايون السيريوم الرباعي باستخدام المحلل الطيفي الدقيق للتحليل بالحقن الجرياني المستمر (Ayah 3S BGR x3 -3D solar cell) == Spectrophotometric Determination of Some Substituted Organic Compounds And Pharmaceuticals Formulation Via Their Oxidation With Ce(IV) Ion Using Ayah 3SBGRx3 - 3D Solar Cell CFIA Microphotometer

اسم المؤلف: مالك حسين علي العلوش العامري
اسم المشرف: نغم شاكر تركي العوادي
الموضوع العام: علوم الكيمياء
السنة: 2014
الموضوع الدقيق: الكيمياء الفيزيائية
الدرجة: دكتوراه
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تم استخدام حسابات ميكانيك الكم التقريبية شبه التجريبية وفق نموذج الحساب PM3)) وحسابات ميكانيك الكم الاساسية التامة غير التقريبية وفق نظرية دوال الكثافة (DFT) وباسلوب B3LYP وعناصر قاعدة 6 - 311G لحساب جزيئة الفلرين التي امتلكت التماثل Ih مع وحدات بناءها (5 | Semi - empirical quantum mechanical methods (PM3) and Density Functional theory calculations (DFT/ B3LYP/ 6 - 311G) were executed to evaluate the fullerene molecule ,the internal coordinates (bond length and angles) and some physical and energetic properties.Calculations of the geometrical Parameters (bond lengths and bond angles), have shown that the (C=C) bond length is increased with increasing the size of the molecule that increased elasticity especially to fullerene to be like a ball. The (C - C) bond length is decreased with increasing the size of molecule, that means fullerene will be more stable than the other molecules.The energetic values (heat of formation) is found to be increased with the increasing of the size of molecule. The total energy is decreased with increasing size of molecule that means the stability will increase with the increasing of the size of unit construction of fullerene molecule , on the other hand , the energetic difference (E HOMO - LUMO) between the higher level of orbital and the lower level of orbital are decreased with the increasing of the size of molecule ' unit construction reaching to the fullerene molecule. So, this property will increase the significance of fullerene in the industrial and the electrical purposes.The vibrational modes frequencies with ( 3N - 6) whereas N is represented by number of molecule atoms which are evaluated with the absorption intensities of infrared frequencies. symmetrical and coordinated modes were discussed at the equilibrium geometric formation by using the programs MOPAC & Gaussian 05.It is worthy to say that it was not mentioned before that the complementary classification for the vibrated motion modes for such molecules , so our evaluations may considered unique. It is noted , as well , that CH stretching frequency has had fluctuations that means increasing and decreasing in the values of frequencies. In connected with the bending vibrated modes which taking place out of plane of the molecule are decreased with the increasing size of the unit constructions of molecule but it is increased only at the fullerene molecule. Conversely, the bending vibrated modes which are taken place in the plane of molecule are increased with the increasing the size of unit construction of molecule but are decreased at the fullerene molecule.The distribution of the electronic charges density on the atoms of unit construction of fullerene molecule were studied, the results shown the absence of the electronic charge on the atoms of Fullerene molecule and its concentrated at atoms of the outer circumferential edges C - Cc for the aromatic rings in its own unit construction. Semi - empirical methods (PM3) and Density Functional theory calculations (DFT/ B3LYP/ 6 - 311G) were carried out to evaluate the vibration frequencies and infra - red (IR) absorption intensities for equilibrium geometries of construction units of (6,0) zigzag (Mono (D6h), Di (D6d), Tri(D6h), Tetra (D6d)) ring layers SWCNTs and the internal coordinates ( bond length & angles ) at the equilibrium geometric formation symmetrically according to group theory were evaluated. The most important notes were axial bond length C - Ca which is decreased with the increasing of the tube length whether odd or even number of ring layers. The length of these mentioned axial bonds will be longer in the outer layers than the middle layers that means the increasing of stability of the tube with its length increasing , with the ability of replacing the external atoms of the tube because they are connected with longer and weaker bonds. The reverse was found with the circumferential bond lengths C - Cc was as they were increased with the increasing length of the tube whether the tube was odd or even in number of ring layers. Moreover , the lengths of these bonds are decreased in the middle side to the outer one for the odd and even ring layers. This will confirm the stability of the tube with its length increasing. The lengths of outer bonds C - H which are situated on the edges of the tube which were approximately fixed , with exception of the bond length of CH bonds in Mono ring layers which were longer because the large negative charge on carbon to which it is bonded and the large positive charge on it compared with the positive charge on hydrogen atoms of the multi - layers tubes. The heat of formation which was found to be increased with the increasing of the length of the tube , that means increasing of the stability and the aromatic properties , with the increasing of number of tube' layers. This property will increase the importance in the uses of these tubes for the industrial and electrical purposes as semi - conductors.The vibrational modes frequencies with 3N - 6 with the absorption intensities of infrared frequencies were evaluated and classified. These modes were discussed in symmetrical and coordinating manners at the equilibrium geometric formation, by using the programs of MOPAC and Gaussian 05 , with confirming on unavailability of bounded specification for such modes with 3N - 6 in the literature. We have a through our studies that the stretching vibration modes of symmetric and anti - symmetric Carbon - Carbon axial bond (C - Ca) increased with the increasing length of tube , and this will increase the physical properties for electrical conductivity with confirming on the significance of nanotube industrially. For the vibrational bending frequencies which are taking place in plane and out of plane of molecule surface as well as the vibrational stretching for odd number of ring layers (Mono and Tri) fluctuation will be happening in the relations , as all of them will be decreased with the increasing of tube ' length except (C - Caasym, C - Casym , ? CHsciss. , ? ringasym , ? ringsym and ? ringsym ) which be increased with the increasing the length of tube. The vibrational bending frequencies which are taking place in plane and out of plane of molecule surface for the even number of ring layers ( Di and Tetra layers ) will be decreased with the increasing of tube' length except (? CHsciss.) which is increased with the increasing of tube' length. Furthermore , all vibrational modes which are related to the puckering , breathing and bending movements of clockwise and anti - clockwise according to "group theory" were determined in accurate manner to which deformations are related , which are happened in the tubes , as a result of vibration, that may prevent the flow of electrons' movements and their transitions. The numerical values for the vibrational frequencies which are resulted from Semi - empirical methods (PM3) were acceptable in comparing with the strict calculations , hopping to achieve best values and to be close to the values obtained for the strict calculations (DFT) method to be suited with the basis and standards that are depended internationally. Some of these values were corrected by multiplied by constant scaling factors for such molecules. The results of scaling were good and very close to the experimental and calculated values.The distribution of charges' density on units of construction atoms of (6,0) zigzag nanotube SWCNTs also were studied. The results were consistent with the physical and experimental conductivity properties for such calculated tubes , as the intensity of the electronic charge was concentrated on the outer circumferential edges of atoms C - Cc for the aromatic molecules as well as for nanotubes with its disappearing form outer side towards the middle side of multi - ring layers ( Mono , Di , Tri and Tetra ).

تحضير ودراسة مشتقات 2 - امينو - 5 - ثايول - 4,3,1 - ثايادايازول الجديدة == Study And Synthesis of New 2 - Amino - 5 - Thiol - 1,3,4 - Thiadiazole Derivatives

اسم المؤلف: هبه مشتاق احمد علي البدري
اسم المشرف: محمد مهدي صالح الدليمي
الموضوع العام: علوم الكيمياء
السنة: 2007
الموضوع الدقيق: الكيمياء التحليلية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: The project conducted in this research work was carried out from October 2013 to May 2014 which leads to this thesis. It full's into five chapters. All these chapters cover up the survey, the practical part of preparing,manufacturing and testing many designs that have been adopted during this research work, and the results were subjected into various mathematic and data treatment.Chapter One : discuses the light (first part) absorption process and describes FIA in general (second part), it is classification and fundamentally involved ideas , the uses and applications of FIA. Chapter one also reviews the use of Ceric sulfate (third part) as a reagent definition, properties, uses and the applications. This chapter ends with the aim of the project.Chapter Two : In this chapter a complete description of the chemicals, their preparations and, using them throughout this project. This chapter also describes the use of flow system with all it is components (i.e. peristaltic pump, connection tubes, junction(Y - junction), six ports injection valve, reaction coil, and measuring readout system).Chapter Three : consists of three parts. The first part describes the design of Ayah 3SBGRx3 - 3D solar cell CFIA microphotometer. The idea of the use with the application of new flow injection microphotometer was build up to measure the responses. Flow injection microphotometer was made based on the use of a solar silicon cells as a detectors, and LEDs as an irradiation sources.The second part deals with calculation of dilution factor. This study was carried out to evaluate the change in concentration at each location of the designed manifold system via the chasse of an air bubble.The third part deals with the analysis carried out in this research work.Three different phenolic compounds (Pyrocatechol, Resorcinol, and Pyrogallol) were subjected by Ceric sulfate as oxidizing agent. A comprehensive detailed study was carried out using Ayah 3SBGRx3 - 3D solar cell CFIA microphotometer, the linear range, limit of detection (L.O.D) and percentage relative standard deviation for repeatability were 5 - 40 mMol.L - 1 , 36.63 ng/sample and < 1.5% successively for Pyrocatechol, and 5 - 40 mMol.L - 1, 17.17 ng/sample, and < 0.7% respectively for Resorcinol. While 5 - 40 mMol.L - 1, 41.61 ng/sample, and < 2 % for Pyrogallol. The method was applied successfully for determination of the mentioned phenolic compounds in pure samples. A comparison was made between the newly developed method and the classical method (UV - Vis spectrophotometry) at wave length 492, 481, and 438 nm for Pyrocatechol, Resorcinol and pyrogallol espectively of analysis using the standard additions method via the use of aired t - test. The obtained results was treated mathematically, it was noticed hat there was no significant difference between two different methods for analysis of three different organic compounds; in addition to no significant difference in the contribution of the Pyrocatechol, Resorcinol and pyrogallol to the oxidation reaction path, at 95% confidence level.Chapter Four : deals with the analysis of two different drugs (first part : Amiloride, and second part Ciprofloxacin) carried out in this research work using Ceric sulfate as a oxidizing agent. A comprehensive detailed study was carried out by Ayah 3SBGRx3 - 3D solar cell CFIA microphotometer, the linear range, limit of detection (L.O.D) and percentage relative standard deviation for repeatability were 0.0005 - 10 mMol.L - 1, 9.471 ng/sample, and < 1.3% successively for Amiloride. 0.05 - 12 mMol.L - 1, 0.300 ?g/sample, and < 0.6%, for Ciprofloxacin. The method was applied successfully for determination of mentioned drugs in pharmaceuticals formulation. A comparison (forAmiloride ) was made between the newly developed method and the classical method (UV - Vis spectrophotometry at wave length 540nm) of analysis using the standard additions method via the use of paired t - test. It showed that there was no significant difference between the quoted value of each individual company with calculated t - value at 95% confidence interval from developed method, in addition to comparison between two methods and calculate tvalue, it was noticed that there was no significant differences between two methods at 99% but a significant difference at 95% confidence level. A comparison (for Ciprofloxacin) was made between the newly developed method and the classical method (UV - Vis spectrophotometry) at wave length 551nm of analysis using the standard additions method via the use of paired t - test. It showed that there was no significant difference between the quoted values of each individual company with calculated t - value at 95% confidence interval from developed method, in addition to comparison between two methods and calculate t - value, it was noticed that there was no significant difference between two methods at 95%.Chapter Five : This chapter concludes few interesting points based on the obtained results throughout this research work, such as Conclusions and future prospect, Published work, and references.

دراسة فيزيائية لتشخيص سطح البوكسايت والبوكسايت المعدل لامتزاز مادة التتراسيكلين عليهما عند درجات حرارة مختلفة == Physical Study of Bauxite And Modified Bauxite Surfaces Identification For Tetracycline Adsorption On Them At Different Temperatures

اسم المؤلف: اسراء محمد راضي
اسم المشرف: تقي الدين عبد الهادي حمدان
الموضوع العام: علوم الكيمياء
السنة: 2014
الموضوع الدقيق: الكيمياء
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تضمن البحث تحضير وتشخيص استرات وبوليمرات مختلفة جديدة عن طريق تحضير مركبات الكيلية اوروماتية حاملة لمجاميع الهيدروكسيل عن طريق مفاعلة الكليسيرول مع (الريسورسينول , الكاتيكول , الهايدروكوينون ) بشكل منفصل.تم اجراء دراسة نظرية لنواتج الالكلة وبعض نواتج ال | This research includes the synthesis and Identification of new esters and polymers via new alkyl Aromatic containing hydroxyl groups. These compounds was prepared by reacting of glycerol with (resorcinol, catechol, hydroquinone) separately.A theoretical study For the products of alkylation and Polymers was conducted and compared with results.This Work includes the following : - first step : - Alkylation of cyclic compounds (resorcinol, catechol, hydroquinone) with glycerol to produce.2 - (2,4 - dihydroxyphenyl)propane - 1,2,3triol (H1) 2 - (2,5 - dihydroxyphenyl)propane - 1,2,3triol (H2) 2 - (3,4 - dihydroxyphenyl)propane - 1,2,3triol (H3)The resulting compounds were Identified by different techniques (FT - infrared spectra IR, NMR spectrum magnetic (1H - NMR, 13C - NMR) and Elemental analysis (CHN).Some physical properties of these compounds were studied.Step Two : - This step in clndes the preparation of ester compounds (Es1 - Es6) via reacting (H1, H2, H3) with Dicarboxylic Acid (malonic, Succinic) The resulting compounds were identified by different techniques physical properties of these compounds were studied Step Three : - Compounds (H1,H2,H3)were polymerized to produce new polymers (p1 - p9) via reacting with anhydride (maleic , phallic and succinic) by melting reaction (200 - 250) C.These Polymers were studied and Identified by different chniqnes including (FT - infrared spectrum, DSC, DLS, and studying solubility in different organic solvents, and measuring the percentage of swelling.Step Four : - The theoretical simulation of alkylation reaction of compounds (resorcinol, hydroquinone and catechol) with glycerol in existence of silicate aluminum were condncted. The transitional situation of these reactants and estimated energy values that leads to the suggestion interactive pathways, where studied. The prepared compounds (H1, H2, H3) were found haning a low value of total energy ( - 390.240 , - 390.232, - 390.251kCal \ mol), respectively, The study also these compounds possass less ? gab values (1.515,1.23, 0.68ev) respectively which was calculated density function calculations of DFT (minimal - STO - 3G).The comparison between the theoretical and obtained values of these compounds were conducted.The theoretical simulation of polymerization reaction (H1, H2, H3) to produce the polymers (p1,p4,p7)were done.The third is the most possible be cause it has the lowest values of total energy( - 126.625, - 126.491 , - 125.814 kCal\mol), respectively, and also has the lowest ?gab values (8.31,7.03.7.088ev).Polymers (p1,p4,p7) are theoretical produced by ring closure reaction and reaction and the possible energy values of these reactants are ( - 222.444, - 222.443, - 190288.29 kCal \ mol) calculated by semi - empirical calculations PM3.in conclusion, these polymers are formed through condensation reaction but not cyclic closure reaction.

تحضير وتشخيص بعض المشتقات الجديدة للبنزايميدازول المعوضة == Synthesis And Characterization of Some New Substituted Benzimidazole Derivatives

اسم المؤلف: سحر ثامر عداي
اسم المشرف: عبد الامير مطلك فنجان
الموضوع العام: علوم الكيمياء
السنة: 2014
الموضوع الدقيق: الكيمياء التحليلية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: The project conducted in this research work was carried out from December 2013 to June 2014 which leads to this thesis, which are in five chapters. All these chapters cover up the survey, the practical part of preparing, manufacturing and using Atomic force Microscopy that have been adopted during this research work, and the results were subjected into various internationally used mathematical and data treatments.Chapter OneDiscusses the acids, ion exchange, precipitation reaction, crystal growth theories, light scattering, turbidity and describe FIA in general, it is classification and fundamentally involved ideas without forgetting the use and applications of FIA. Chapter one also discusses derivative spectroscopy, definition, classification, the applications. This chapter ends with the aim of the project.Chapter Two : In this chapter a complete description of the chemicals and ion exchange column, their preparations and their use throughout this project. This chapter describes the use of flow system with all it is components (i.e. peristaltic pump, connection tubes, junction(Y - junction), six ports injection valve, ion exchange column and measuring readout system). Chapter Three : Consists of four parts The first part describes the design of Ayah 5SX1 - T - 1D Solar cell CFIA and deals with calculation of dispersion to evaluate the change in concentration ateach location of the designed manifold system via the chasse of an air bubble. The second part deals with the analysis carried out in this research work. Determination of oxonium ion (HClO4, HNO3, H2SO4 and HCl) via turbidity of solution of zinc (II) ion in cation exchange column - K3[Fe(CN)6] system. A comprehensive detailed study was carried out using Ayah 5SX1 - T - 1D Solar cell CFIA microphotometer. The linear range (10 - 100 mMol.L - 1), limit of detection (43.20, 57.14, 30.28, 30.97 ng/sample) for above mentioned acids and percentage of relative standard deviation < 2% for five successive measurement of 20 and 80 mMol.L - 1 for used acids. The method was applied successfully for determination of the mentioned oxonium ion in pure and commercial samples. A comparison was made between the newly developed method and the classical method pH meter using of paired t - test. It was noticed that there was no significant difference between two methods.The third part deals with the analysis carried out in this research work. Determination of oxonium ion (HClO4, HNO3, H2SO4, HCl) via turbidity of solution of copper (II) ion in cation exchange column - K3[Fe(CN)6] system. A comprehensive detailed study was carried out using Ayah 5SX1 - T - 1D Solar cell CFIA microphotometer. The linear range (10 - 100) mMol.L - 1, limit of detection (42.94, 39.14, 20.61, 26.11 ng/sample) for above mentioned acids and percentage of relative standard deviation < 2.5% for five successive measurement of 20 and 100 mMol.L - 1 for used. The method was applied successfully for determination of the mentioned oxonium ion in pure and commercial samples. A comparison was made between the newly developed method and the classical method pH meter using paired t - test. It was noticed that there was no significant difference between two methods.The fourth part deals with the approache that was used through linear array Ayah 5SX1 - T - 1D continuous flow injection analyzer to distinguish between the responses that were obtained i.e. discrimination between the kind signals that were completely different.Chapter FourDeals with studying topography and morphography of the Zn3[Fe(CN)6]2 and Cu3[Fe(CN)6]2 complexes using atomic force microscopy. Chapter Five : This chapter concludes few interesting points based on the obtained results throughout this research work, such as conclusions and future work, Published work, and references. -

دراسة التاكل والحماية من التاكل لسبائك من حديد الفولاذ في ماء البحر باستخدام دقائق اوكسيد الزركونيوم وكربيد السليكون واوكسيد الالمنيوم النانوية == Corrosion And Corrosion Protection Studies of Carbon Steel Alloy In Seawater Using; Zirconia, Silicon Carbide And Alumina Nanoparticles

اسم المؤلف: حيدر عبد الكريم يوسف
اسم المشرف: خلود عبد صالح السعدي
الموضوع العام: علوم الكيمياء
السنة: 2014
الموضوع الدقيق: الكيمياء الفيزيائية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: يعتبر اوكسيد النحاسوز واحدا من المواد ذات الاستخدامات العلمية المتعددة الاغراض وذات الاهمية الصناعية الكبيرة ,ومنها استخدامه كمتحسس للغازات وفي العوامل المساعدة وكذلك في انتاج الواح الطاقة الشمسية ويدخل وبصورة كبيرة كمحطم للصبغات العضوية في مجال الكيمياء | Cuprous oxide (Cu2O) has been extensively studied because of its potential use in several electronic applications, which include solar cells and gas sensors. This Thesis is devoted to the synthesis, characterization of nano - structured cuprous oxide by using a simple electrochemical cell with a potassium chloride solution as an electrolyte, the electro cell contains a two high purity copper electrodes as a sheet form in different areas at varying sizes the area of the cathode was twice of the area of anode , the two electrodes zone were separated using a fine diameter silica diaphragm,Within this broad scope , the Thesis focuses on : • Production of different shape nano - crystals (Cu2O) and investigation of the correlation between experimental parameters and resulting microstructure.• Production of highly purity nano - crystalline Cu2O powder, with the estimation it’s by the available investigation instruments.• Study the different parameters, current density, bath temperature, KCl concentration , types of additives , time of precipitation, and there’s effects on the shape ,quantity ,surface roughness, powder color, on the Cu2O powder. Models have been proposed for the nano - crystal formation validated by several techniques uses such as X - ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM), and Fourier Transform Infra - Red spectroscopy (FTIR). The produced nanocrystals show good crystallinity with Cu2O purity and Copper oxide semiconductor nanoparticles were prepared by electrochemistry using galvanostatic and potentiostatic approaches. The optimum deposition conditions ( electrolyte composition , medium pH , type of additives, electrodes area ,current density , temperature of the electrolyte and applied potential of the cell) , to prepare the Cu2O nano particles have been identified; in particular the conditions that allow getting this product by using KCl ,(PVA ,SDS ,and glycerin as emulsifying agent) have been well identified for the first time. The configuration of deposited Cu2O , purity and amounts. These values depend on the electro deposition conditions such as the pH of the solution, the deposition potential and temperature. Where the study results showed that there is direct effect of these factors, it has been observed that the sizes of the precipitate crystalline decreased with increasing current density and especially at high bath temperatures its ranged about 10 - 20 nm , in addition to the effect of the percentage of additives emulsifier agents the best results at poly vinyl alcohol.. The X - ray diffraction pattern and 2? values reflect that the high purity of the deposit where obtained, without any of the other undesirable products like CuO, CuCl2 and CuCl. Also the FTIR analysis was considered. the effect of additives of the type of emulsifier on the crystalline form of the deposit, the PVA produced of the Star (Branches) crystals shape, the addition of the SDS compound leads to the form of the cubic , and the glycerin product the binary pyramid crystals shape.. Finally the conditions effect on the surface roughness of the precipitated powder also discussed. Depending of the electro - deposition conditions, different surface morphologies with various preferential crystal orientations were obtained for the temperatures of the electro - deposition of 80 °C , pH = 8 - 9 , The influence of several deposition parameters of the Cu2O, such as applied potential, pH, the temperature of the bath , the chemical composition, grain size and orientation parameters of the sample was systematically studied using X - Ray Diffraction , Atomic Force Microscopy, Transmission Electron Microscopy ,Fourier Transmission Infra - Red, and scanning electron microscopy.

دراسات ثرموداينميكية وحركية لفعالية مركبات متعدد الفينولات الطبيعية للوقاية من التسمم بالرصاص == Thermodynamic And Kinetic Studies On The Effectiveness of Nutritional Origin Poly Phenols In Lead Poisoning Protection

اسم المؤلف: نجدت رضا حميد علي الخفاجي
اسم المشرف: الهام مجيد الرفيعي
الموضوع العام: علوم الكيمياء
السنة: 2014
الموضوع الدقيق: الكيمياء
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: يتضمن البحث تحضير مركبات حلقية غير متجانسة جديدة ( خماسية , سداسية وسباعية )ودراسة الفعالية الحيوية لها.المرحلة الاولى : تتضمن مفاعلة بنزين ثنائي الامين مع ثنائي كبريتيد الكاربون في الايثانول المطلق للحصول على المركب [1] ليتفاعل مع ( حامض الماليك , حام | This research involves synthesis of new heterocyclic compounds(five , six , and seven - membered rings) and study their biological activity First Part : The o - phenylenediamine was condensed with carbon disulfide in abs. ethanol to yield compound [1] which reacted with(maleic acid and oxalic acid ) and presence of phosphorus oxychlorid to yield compounds [2,3].Second Part : The phthalic anhydride was condensed with glycine in aceton to give compound [4] which reacted with o - phenylenediamine in presence of phosphorus oxychlorid to give compounds [5] and with o - phenylenediamine in abs. ethanol to give compound [6] which reacted with maleic acid in presence of phosphorus oxychlorid to give compound [7]. Third Part : Thiosemicarbizide was condensed with carbon disulfide in abs. ethanol and presence of sodium carbonate to result compound [8] which reacted with different sugars (ribose , xylose and arabinose) in abs. ethanol and presence of glacial acetic acid to give new Schiff bases derivatives [9 - 11] respectively. The resulting imine derivatives were reacted with ( salicylic acid , 2 - mercaptobenzoic acid and glycine) to give compounds [12 - 14] respectively.Fourth Part : Study of biological activity of some synthesized compounds

تاثير الصفائح النانوية على الخواص الفيزيائية والكهربائية لبعض المركبات البلورية السائلة == Effect of Nanosheets On The Physical And Electrical Properties of Some Liquid Crystalline Compounds

اسم المؤلف: الاء فاضل سليمان داود
اسم المشرف: عصام عبد الكريم عبد اللطيف | عمار هاني الدجيلي
الموضوع العام: علوم الكيمياء
السنة: 2014
الموضوع الدقيق: الكيمياء
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: هذه الاطروحة تمثل سلسلة من دراسات الكم من خلال التركيب الالكتروني للانظمة العضوية الفلزية. تتضمن نتائج الفصول خلاصة عمل تعود لكيمياء الروثينيوم (الفصل الثاني) واستخدام النظريات لتساعدنا على التشخيص التركيبي من خلال اجهزة الطيف الحاسوبية (الفصل الثالث والر | This thesis presents a series of quantum chemical studies into the electronic structure of organometallic systems. All of the results chapters are self - contained, summarising work related to Ruthenium chemistry (Chapter 2) and the use of theory to aid structural identification through computation of spectroscopic parameters (Chapters 3 and 4). Chapter 5 relates to distinct work done concerning to the Topological Analysis of the Electron Density in the dihydried Triruthenium Cluster, but the focus on the question of dihydried triruthenium motif represents a close link to the material covered in Chapters 3 and 4. In Chapter 2, Density Functional Theory (DFT) is used to probe the structures of triruthenium clusters Ru3(CO)12. The researcher shed light on the equilibrium geometries and the best function (PBE1PBE) and basis set (SDD Ru/ SVP on (C, O)) can be used. On the basis of that, the global minimum found for Ru3(CO)12 is an unbridged (1D3) structure. In Chapter 3, DFT with PBE1PBE functional and (SDD Ru/ IGLOIII, TZVP P, H/ SVP on (C, O)) basis sets have been used to identify structures of species observed in hydrogenation reactions of alkynes using catalysts based on Ru3 clusters. The identification of the hydride intermediates observed by NMR spectroscopy is ambiguous, and is generally based only on 1H NMR and JP - H coupling constants for hydrides attached to the ruthenium metal centres. Our calculations propose that the experimentally observed species A and B do not contain the Ru3(? - H)(H) motif, as proposed by Duckett group but have Ru3(? - H)2. In Chapter 4, these studies were extended to the analogous dihydride triruthenium monodentate and bidentate phosphines. By computing energies, 1H chemical shifts, we propose that the experimentally observed species A1 and B1 do not contain the Ru(µ - H)(H) motif, as proposed by Duckett and co - workers, but rather the dibridging Ru(µ - H)2 structures common to A2 and B2. In addition, the results confirm that our methodology is able to model the environment of a terminal hydride correctly.Finally, Chapter 5 describes the Quantum Aim (QTAIM) topological analysis of the electron density in the Picolyl N - Heterocyclic Carbene Triruthenium cluster [Ru3(? - H)2(?3 - ?3C2,NHCpyCH2ImMe)(CO)8] (3 - methylimidazol - 2 - ylidene). However, this cluster has been chosen since, firstly, has Ru3(? - H)2 motif similar to triruthenium core proposed in chapters 3 and 4 , secondly, this particular cluster contains one hydride - unbridged and two hydride bridged Ru - Ru edges and a face - capping ligands with different types of Ru - C and Ru - N bonds , this allowing interesting comparisons between the topological properties of related but different atom - atom interactions, within the same molecule.

دراسة نوعية مياه خزان الحبانية موقعيا والاستشعار عن بعد == Study of The Water Quality In Alhabbaniyah Reservoir In Situ And Remote Sensing

اسم المؤلف: احمد عطا الله حسن الفهداوي
اسم المشرف: عادل مشعان ربيع
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: البيئة المائية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:

العلاقة بين مؤشر الموت الخلـوي المبرمج (ربيطة فاس الذائبة) وقلة النطاف عند الرجال == Correlation Between Apoptotic Marker (Sfas Ligand) And Oligozoospermia In Men

اسم المؤلف: احمد حسين علي الزاملي
اسم المشرف: صباح ناصر العلوجي | انعم رشيد الصالحي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الحيوان
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: The Fibroblast associated (Fas) system in the testes has been identified as a key regulator of apoptosis, a process that greatly influences the germ cell population of the testes. and the soluble Fas Ligand (sFasL) may be a competitive inhibitor to induce apopto¬sis of the Fas baring cells. Therefore, this study measures the level of sFasL in the semen of oligozoospermic men evaluating the association between seminal plasma sFasL and spermatogenesis.A total 58 oligozoospermic men and 29 normozoospermic volunteers were included in this study. They were attending the Infertility Clinic of the High Institute of Infertility Diagnosis and Assisted Reproductive Technologies, AL - Nahrain University\ Baghdad. Their age mean was 31.77± 5.48 years and a median of 30 years. Semen samples were evaluated according to World Health Organization 2010 standard parameters. The Seminal plasma was separated from the cellular elements after centrifugation and the supernatant was transferred to plane tubes and frozen at - 20 ?C till using for measurement of sFasL. These patients were classified into patients with severe oligozoospermia (sperm concentration ?5 million / ml) which include 29 patients, and patients with mild and moderate oligozoospermia (sperm concentration ranging between 5 - 15 million / ml) which includes 29 patients as well. The control group comprised of 29 men with normospermic parameters according to WHO 2010 standard (Normal volunteers). The sFasL was measured using ELISA enzyme immunoassay for quantitative determination of sFasL Kit. Data were analyzed statistically using Analysis of variance (ANOVA), Least Significant Difference (LSD) and Correlation Coefficient (r).The sFasL level was found significantly higher (P< 0.01) in seminal plasma of oligozoospermic men, with weak correlation of the level of sFasL with the degree of severity of oligozoospermia. Based on the results of this study, it was concluded that sFasL is a novel marker found in the seminal plasma of oligozoospermic men. It's level was higher in cases of oligozoospermia regardless of its severity.

تكامل جرعة منخفضة من مبيد الترفلان مع مخلفات زهرة الشمس في مكافحة الادغال وتحسين نمو محصول الماش لتقليل الاعتماد على المبيدات والحد من مخاطرها == Integration of Reduced Dose of Trifluralin Herbicide With Sunflower Residues For Weed Control In Mungbean Field

اسم المؤلف: اﺭﻭﻯ ﻋﺒﺪ ﺍﻟﻜﺮﻳﻢ ﺗﻮﻓﻴﻖ
اسم المشرف: اﺑﺮﺍﻫﻴﻢ ﺷﻌﺒﺎﻥ ﺍﻟﺴﻌﺪﺍﻭﻱ
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: النبات - الفسلجة
الدرجة: دكتوراه
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Two field experiments, several greenhouse and laboratory experiments were conducted during the course of study to evaluate the allelopathic potential of two sunflower (Helianthus annuus L.) cultivars on companion weeds and weeds grown in mungbean (Vigna radiata L. R. Wilczek) field alone and in combination with reduced rate herbicide, and to determine the chemical and genetical bases of allelopathic traits in the test cultivars. The aim of the first experiment was to test whether the variation in weed growth between the sunflower cultivars (Shumoose and Sin Altheeb), which was observed in the field, was due to differences in their allelopathic potential. Results showed the ability of both cultivars to reduce weed population and biomass with the superiority of Shumoose cultivar in suppression of weed density at 60 and 120 days after sowing compared to Sin Altheeb. Weed biomass was significantly reduced up to 90 and 71% by Shumoose and Sin Altheeb cultivars, respectively. Stair case experiment indicated that root exudates of Shumoose cultivar showed more suppression to weeds than Sin Altheeb giving additional evidence for the superiority of Shumoose cultivar in its allelopathic weed suppression. Chemical analysis by High performance liquid chromatography indicated the presence of 9 compounds in root exudates of Sin Altheeb and 8 compounds in Shumoose, and all are Phenolic in nature. However, total of the isolated phenolics was doubled in Shumoose than in Sin Altheeb. Most of the isolated chemicals are reported to have inhibiting ability for germination and growth of plants, including weeds. Second field experiment was undertaken to explore the response of weeds and mungbean crop to soil incorporated with sunflower residues in combination with lower rate of a pre - plant herbicide (trifluralin). Sunflower residues of the two cultivars Shumoose and Sin Altheeb at 3.2 and 6.4 t ha - 1 were used either alone or in combination with trifluralin at 1.2 L ha - 1 (50% of label rate). Weedy check (control), trifluralin at full label rate (2.4 L ha - 1), and weed free treatments were also included for comparison. Plots treated with 50% of label rate of herbicide and amended with sunflower residues of cultivar Sin Altheeb recorded least weed density and dry biomass and this suppression was much greater than the residue treatments alone and more than cultivar Shumoose. Application of herbicide at 50% rate in plots amended with Sin Altheeb residue resulted yield 64 % more than with the label rate of herbicide treatment. Chromatographic analysis of sunflower amended field soil revealed the presence of several potent allelopathic compounds in the residues of both cultivars with greater quantity (355.5 µg/ml) in Sin Altheeb than in Shumoose (250.9 µg/ml). Dynamics of release, decomposition and degradation of allelochemicals into the soil showed that different compounds exhibited differential behavior for these processes. Overall quantity of allelochemicals started to increase after 2 weeks of decomposition and peaked at 4 week of decomposition (180.1 ppm) then declined sharply in their quantities thereafter. Periods indicating higher quantities of total phenolics as shown by chromatographic analysis was coincided with the periods in which higher suppressive activity against weeds grown under field conditions. Bioassay of sunflower residues decomposed in soil at different times on Echinochloa colonum L, one of the weeds dominated the mungbean field, revealed that residues of both cultivars suppressed growth of E. colonum weed. The phytotoxicity started after 2 weeks and persisted for 8 weeks. However, Sin Altheeb residues showed greater inhibition than Shumoose cultivar at the last three decomposition periods. Shumoose residues recorded appreciable reduction to the growth of test weed compared to Sin Altheeb. The effect of residues of both cultivars on chlorophyll content and ions uptake in Amaranthus retroflexus L. weed revealed that residues of both species reduced chlorophyll content of leaves and the reduction increased with the increased residue rate. Sin Altheeb cultivar residues were more inhibitory than Shumoose at the lower residue rate. In the same weed, ions uptake was significantly averted by the residues of both cultivars. P and K was significantly increased over control, while Ca, Mg an Fe were found to be decreased over control due to application of sunflower residues in soil at 8 g per kg soil. N was the only test element that did not significantly influence by the residue treatments. No significant differences were found in the test ion uptake between the test sunflower cultivars. Results of using RAPD technique on the sunflower genomic DNA revealed that all the 19 primers used in this study scored different amplification monomorphic and polymorphic bands in the tested genotypes with 12 primers generated polymorphic bands. These bands present in one cultivar and absent in another. They could be responsible for allelopathic trait or secondary compounds associated with this phenomenon. Further work is recommended to analyze the sequence of this band to find out whether it is related to allelopathic trait or not.

التنميط الجيني لفايروس التهاب الكبد نوع اي لمرضى الاصابة الحادة في محافظة المثنى - العراق == Genotyping of Hepatitis E Virus Among Patients With Acute Infection In Al - Muthanna Province / Iraq

اسم المؤلف: ازهار صبري مسلم الذهبي
اسم المشرف: رغد حربي مهدي العزاوي
الموضوع العام: علوم الحياة
السنة: 2014
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Hepatitis E Virus (HEV) infection is found worldwide. It is responsible for large outbreaks in East and South Asia. This study was carried out to identify the distribution of acute HEV infection in AlMuthanna province and then determine the genotypes responsible for the disease spreading. This is the first investigation about the occurrence of hepatitis E genotypes in Al - Muthanna province patients. The study included 270 jaundiced patients of both sexes From AlMuthanna province which included out patients in public health laboratory in Samawah city, for the period from October 2013 to June 2014. All these patients were tested for anti - HEV IgM antibodies by using enzyme linked immunosorbent assay (ELISA). In Al - Muthanna province, 72 patients (26.66 %) out of 270 patients showed positive results for anti - HEV IgM antibodies, and all those patients were tested for confirmatory test at central public health laboratories (CPHL) in Baghdad province. Those patients consist of 45 females and 27 males with age ranged between (4 - 74) years old, were all negative for routinely screened markers of Hepatitis A, Hepatitis B and Hepatitis C, Ten normal healthy individuals, used as normal control in this study. This study showed that the HEV IgM is more common among younger age group (15 - 24), with a percentage of) 41.67%(, and it was higher in females (63%) than in males (37%). Highly significant differences (p ? 0.01) appeared among age groups. The levels of liver function enzymes demonstrated significant differences (p ? 0.05) in HEV patients as compared with healthy controls. The levels of Total Serum Bilirubin (TSB) were (23.41 ± 12.38) mg/dl, Serum Aspartate transaminase (SAST) were (887.17 ± 9.87) U/l, Serum Alanine transaminase (SALT) were (859.91 ± 13.28) U/l, and the levels of Serum Alkaline phosphatase (SALP) were (206.56 ± 5.04) U/l higher than healthy controls (0.884 ± 0.05) mg/dl, (37.27 ± 4.58) U/l, (34.14 ± 7.63) U/l, (48.09 ± 15.42) U/l respectively. RNA was extracted from sera of positive anti - HEV IgM antibodies by using a QIAamp® Viral RNA Mini Kit. Nanodrop and Quantus™ Fluorometer instruments were used to determine the RNA yield and purity according to the standard kit protocol. High levels of RNA concentration were measured by Nanodrop and Quantus™ Fluorometer. Forty - six samples have high RNA concentration out of 72 samples were detected for genotypes I, III & IV by using Applied Biosystems Real time PCR 7500 machine. In this study, HEV type I and III were detected in 23 samples out of 46 samples by using Real Time PCR systems. Ten samples were positive for this test. Thirteen samples (56.52%) were negative for this test. The distribution percentage of genotypes I and III was (43.48%). The results appeared significant difference (P ? 0.05). Also by using the same technique (Real time PCR systems) the HEV type IV was detected in 23 samples out of 46 samples. Which included, 13 samples that recorded negative results by I & III genotypes kit and only 2 samples from it recorded positive results and 11 samples recorded negative result for HEV genotype IV. From other 10 samples, only 3 samples recorded positive result and 7 samples recorded negative result for HEV genotype IV. In a total, 5 samples were positive for HEV genotype IV and 18 samples (78.26%) were negative. So that the distribution percentage of genotype IV was (21.74%). In this study, the samples that showed negative results in both kits have not been tested for other genotypes. This study indicated that the acute HEV infection is highly endemic in Al - Muthanna province in Iraq. Genotypes I & III were the most distribution than genotype IV in patients from Al - Muthanna province in Iraq. These results suggest that the genotypes I & III are the main causative agents of sporadic HEV infection in Al - Muthanna province

دراسة بعض الجوانب المناعية والبكتريولوجية لمرضى ذات الرئة Pneumonia == Study Some Immunological And Bacteriological Aspects of Pneumonia Patients

اسم المؤلف: كرم رياض حسن الجراح
اسم المشرف: رسمية عبد ابو ريشة
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الاحياء المجهرية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: جمعت 120 عينة قشع من اشخاص مصابين بمرض ذات الرئه للمدة من ايار 2013 الى شباط 2014 من ثلاثة مستشفيات في مدينة بغداد وشملت مستشفى اليرموك التعليمي, مستشفى دار التمريض الخاص, مستشفى بغداد التعليمي. شخصت العينات باستخدام الفحوص البايوكيميائية, نظامApi 20 E و| From May 2013 to Feburey 2014, 120 sputum and Aspiration samples of patients with pneumonia disease were collected from different hospitals in Baghdad included : Al Yarmouk Teaching Hospital, Hospital Nursing Home sector and Baghdad Teaching Hospital. All samples were diagnosed by biochemical tests, Api 20 E and Api20 strep. Systems, The results was found to be 28 isolates (23.3%) belong to K.pneumoniae, 26 isolates (21.7 %) belong to S.pneumonia while 66 isolates(55%) belong to causes : E.coli, Pseudomonas sp., Moraxella catrrhalis, S.pyogens, Monilia and S.aureus. From (55) blood samples of pneumonia patients and 30 blood samples from healthy individuals, number of white blood cell (Neutrophil) counts were measured, percentage of Neutrophil cell count in female (53%) higher than the cell count in male(47%). Some markers of pneumonia disease were studied such as ratio of infection between male and female, chronic and acute cases and smoker and non smoker, the results were showed the ratio of infection in female more than in male, (60%, 40%), respectively. And number of acute cases of pneumonia patients 41(74.55%) more than chronic cases 14(25.45%). While infection ratio in smoker patients more than nonsmoker patients at ratio 24(57.14%)18(42.86%), respectively. The result of interleukin - 8 level through acute and chronic phases in pneumonia patients sera was showed high level in patients compared with healthy persons (86.4403 ± 25.50919 vs. 58.7636 ± 4.73152 pg / ml, respectively) with a non significant difference statistically (P?0.05). Also in the age group (age 15 - 60years), The results showed the results interleukin 8 levels higher than the age groups of (2month - 3years) and (age 60 - 85) (93.63 ± 51.65, 68.88 ± 17.17, 65.68 ± 11.73 pg / ml, respectively) with non significant difference (P?0.05). The result of Leukotriene B4 level through acute and chronic phases in pneumonia patients sera showed high level in patients compared with healthy persons (36.00 ± 3, 82 vs. 25.96 ± 4.44 pg / ml, respectively) with a significant difference (P?0.05). Also in the age group (two months - 3 years) were showed the results interleukin 8 levels higher than the age groups (age 15 - 60) (age (60 - 85)(33.61 ± 11.06, 19.29 ± 4.67, 16.86 ± 4.51 pg / ml respectively) with no siginificant difference (P?0.05), the correlation coeifficient between interleukin - 8 and leukotriene B4 was (0.12) with no siginificant difference. The phagocytic activity was determined in pneumonia patients sera according to measurement C3 protein level through acute and chronic phases, the result were showed the ratio of C3 protein levels in healthy persons more than in patients (135.93 ± 12.74, 133.19 ± 12.01 pg / ml, respectively) with a difference was not significant statistically (P?0.05).

انشاء وتوصيف لخط سرطان الثدي الخلوي العراقي == Establishment And Characterization of Iraqi Breast Cancer Cell Line

اسم المؤلف: مرتضى عادل الشامي
اسم المشرف: محفوظة عباس عمران | احمد مجيد الشمري
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: ماجستير
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Several primary cultures were initiated from different samples obtained from Iraqi female patients of breast tumor, one sample was successful, and this sample was histological diagnosed as breast cancer infiltrating ductal carcinoma.The cell suspension was cultured in tissue culture flask and confluent monolayer achieved after 16 days from primary culture. The continuous subculture was done in grown cells in tissue culture flask each 48 - 96 hrs. Between subculture to other until across 50 passages through11months.In our current study different experiments were done to characterize the cultured continuous cells, which are studying the growth curve of the new established cell line and calculating the population doubling time that have been 22 hours.Furthermore, a morphological study was carried out by staining the cells with hematoxilin and eosin dyes. The cells were elongated multi - polar epithelial like cells with nuclear polymorphism and multi - nuclei, in addition to high nuclear to cytoplasm ratio, all these characters of the malignant tumor cells.The Cytogenetic study showed chromosomal aberrations with many numerical changes among the tumor cells and abnormal structure gives chromosomes with unknown origin called marker chromosome. In furthermore the G - band stained of normal 46XX chromosome was done to facilities the comparisons between chromosomes of the new established breast cancer cell line and normal chromosomes aberrationsImmunocytochemistry examination was done for the tumor cells grown in multi well tissue culture slide chamber to detect the presence of some hormonal receptors (ER and PR) gives negative result, and to test Her - neu2 gene that gives week positive result.

دراسة تصنيفية لانواع مختارة من نباتات ذوات الفلقتين في محافظة كربلاء المقدسة, العراق == Taxanomical Study For Selected Dicot. Spp. In The Holy Karbala Province, Iraq

اسم المؤلف: زينة خليل ابراهيم البهادلي
اسم المشرف: علي حسين عيسى الموسوي | خليل ابراهيم الشمري
الموضوع العام: علوم الحياة
السنة: 2015
الموضوع الدقيق: النبات
الدرجة: دكتوراه
الجامعة: جامعة بغداد
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تناول البحث الحالي دراسة بيئية لعدة مواقع من محافظة كربلاء المقدسة بين شهري شباط وايار ولسنتي 2013 و2014 من حيث نوع الترب والمجتمعات الاحيائية لهذه المواقع جمعت خلالها انواع مختلفة من النباتات تابعة لعائلات مختلفة ضمن ذوات الفلقة الواحدة وذوات الفلقتين اذ | The present work includes ecological study for different locations of the holy Karbala province between February and May and for the years2013, 2014, investigating soil kinds and communities in these locations. Different plant species of Monocots and Dicots were collected from variable soil kinds, such as sandy saline soil, loamy saline soil and sandy gravely soil. The species of Haloxylon salicornicum, Zygophyllum coccenium were dominant in the communities of sandy saline soil, Nitraria retusa, Juncus sp. and Halocnemum strobilaceum were dominant in loamy saline soil.Comparative anatomical study has been done for (30) Dicots wild species grown in these environments of Karbala province, as follow : a.Family : Aizooaceae1) Aizoon hispanicum L. b.Family : Chenopodiaceae2) Chenopodium murale L.3) Halocnemum strobilaceum (Pall.)M.Bieb.4) Haloxylon salicornicum (Moq.)Bunge ex. Boiss.5) Salicornia herbacea L.c. Family : Compositae (Asteraceae)6) Carthamus oxycantha M.B. 7) Launaea capitata (Spreng.)Dany 8) Launaea mucronata (Forssk.)Muschl. 9) Rechardia tingitana (L.)Roth. d. Family : Convolvulaceae10) Convolvulus oxypyllus Boiss. e. Family : Cruciferae (Brassicaceae)11) Diplotaxis harra (Forssk.)Bioss. 12) Sterigosella africana (L.)Boch. 13) Sterigosella grandiflora (Bnge)Bochantsev 14) Savignya parviflora (Del.)Webb. 15) Neotorularia torulosa (Desf.) Hedge & J. Leonard 16) Zilla spinosa (Turra)Prantl. f. Family : Cucurbitaceae 17) Citrullus colocynthis (L.)Schrad. g. Family : Geraniaceae18) Erodium laciniatum (Cav.) Willd.h. Family : Malvaceae19) Malva parviflora L. i. Family : Neuradaceae 20) Neurada procumbens L. j. Family : Nitrariaceae21) Nitraria retusa (Forssk.)Aschers.22) Peganum harmala L. k. Family : Papillionaceae23) Trigonella stellata Forssk. m. Family : Polygoniaceae 24) Rumex versicarius L. n. Family : Resedaceae25) Oligomeris linifolia (Vahl)Macbr.q. Family : Solaneaceae 26) Lycium barbarum L.r. Family : Tamaricaceae 27) Tamarix florida Bge.28) Tamarix macrocarpa (Ehrenb.)Bge.u. Family : Zygophyllaceae29) Fagonia glutinosa Del. 30) Zygophyllum coccenium L. The present research focused on many anatomical characters and studies comparatively, such as epidermis types, stomatal complexes, leaf venation, cross sections of root, stem and vertical sections of leaf blades. Different cross sections were shows variability cuticle thickness and epidermis, vascular cylinder tissues, collenchyma and sclerenchyma in different species studies. Variations were noticed among these tissues in the variable species.Thickness of cuticle epidermis of leaves were variable, and unifacial and bifacial mesophylls were noticed for the first time in some species studies. Some cross sections were obtained for scale leaves in Tamarix florida, Tamarix macrocarpa, Halocnemum strobilaceum, Haloxylon salicornicum and Salicornia herbacea.The anatomical characters of these plant parts has not been studied before for these species, at least for Iraqi specimens. The following species Launaea capitata, Oligomeris linifolia and Zilla spinosa were glabrous in all vegetative and reproductive organs. In time that the other species, Haloxylon salicornicum , Salicornia herbacea, Launaea mucronata, Reichardia tingitana, Strigosella grandiflora , Peganum harmala, Lycium barbarum, Tamarix florida and Tamarix macrocarpa were glabrous just in the vegetative parts, but hairy (pubescent) in the reproductive organs. The indumentums was variable in thickness within variable plant organs and parts, even on the lower and upper leaf surfaces. Different kinds of crystals were found and verified in the stems and leaves of different species. Size and density of these crystals were variable in variable locations of stem and leaf tissues.. Geographical distribution was investigated for all the studied species using Iraqi satellite maps by GIS program. Neotorularia torulosa was the most distributed species, and Rumex versicarius was the least distributed one. Schedules, schemes, illustrations and micrographs were presented for the different species studied in this work. Lastly results were discussed depending on available references and reasons.

دراسة تصنيفية لانواع الجنس Echinops L. (Compositae) في العراق == Comparative And Systematical Study of The Genus Echinops L. (Compositae) In Iraq

اسم المؤلف: سكينة عباس عليوي
اسم المشرف: علي حسين عيسى الموسوي
الموضوع العام: علوم الحياة
السنة: 2015
الموضوع الدقيق: النبات
الدرجة: دكتوراه
الجامعة: جامعة بغداد
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تناول البحث الحالي دراسة تصنيفية مقارنة لانواع الجنس Echinops L. في العراق حيث شملت الصفات المظهرية والتشريحية وحبوب اللقاح، وكذلك البيئة التوزيع الجغرافي فضلا عن المعاملة التصنيفية. شملت الدراسة المظهرية دراسة صفات الجذور والسيقان والاوراق والرؤوس الزهري | The present investigation dealt with comparative systematic study of the genus Echinops L. (Compositae) in Iraq.The work involved comparative morphological and anatomical characters, in addition to palynology, ecology, geographical distribution and taxonomic treatment for these species. Morphological characters of roots, leaves, involucre bracts, inflorescence, in addition to, indumentum variations were discussed and the study concluded that stems, leaves, involucres bracts, especially the inner most layer characters were useful aid in distributing species of the genus. Comparative anatomical characters were used, such as characters of leaves, epidermis stomatal complexes, variation patterns, cross sectionings of stems, leaves as well as L.S of growing points. The study revealed that the anatomical characters are important taxonomically. The present investigation observed that pollen grains of all species were tricolporate and echinate. The taxonomic important of grains characters were assessed of the species. Maps of geographical distribution were prepared for all species studied. The study shown that most species were distributed in the North area of Iraq and a few species of the genus were distributed in the East and South of Iraq. In conclusions, (11) species of the genus Echinops were recognized in Iraq. Taxonomic treatment was carried out for all Echinops species and key was designed for them

التمنيع باضداد الخمل النوع الاول المنتجة من بكتريا الاشريكية القولونية المسببة لالتهاب المجاري البولية ضد استيطان واصابة المثانة == Immunization With Type 1 Fimbriae of Uropathogenic Escherichia Coli Against Colonization And Infection of Bladder

اسم المؤلف: اروى علي شكر
اسم المشرف: رسمية عبد ابو ريشة
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الاحياء المجهرية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Between September and November 2013 a total of 140 urine specimens obtained from patients in Al - Kadhmiah Teaching Hospital, Ibn - Al Naffees Teaching Hospital, and Educational Laboratories in Medical city. These midstream urine specimens were obtained from patients clinically suspected to have urinary tract infection (UTI) in sterilized containers. All specimens were processed immediately after collection.A total number of 140 specimens of mid - stream urine were collected from patients suffering urinary tract infection symptoms. These isolates were obtained from 41 male and 99 female patients. They were distributed in the age group of 5 - 60 years old. All specimens were identified using biochemical tests and API 20 E system. 60 (42.85%) of urine specimens was Escherichia coli and 15(10.71%) of specimens growth was Klebsiella spp. and 25(17.85%) growth was Proteus spp. and 40 (28.57%) was G+ve bacteria.The adherence ability of E.coli isolates were evaluated by using Congo red agar and detected their ability to produce biofilm by using methylene blue staining technique in polystyrene microtiter plates and then Optical density was determined at 580 nm.All sixty isolates of E.coli were grown on Congo red agar medium to detect their adherence ability. Twenty (33.3%) isolates were given negative result by forming pink colonies on congo red agar, were as, forty (66.6%) isolates were given positive result by forming black colonies with a dry crystalline. Three isolates give strong results E.coli (13, 8, and 40). Consistency indicated biofilm production by microtiter plate. E. coli 40 which isolated produced the thickest biofilm (O.D. : =3.17).Type 1 fimbriae expression by E.coli 40 isolate was detected by mannose - resistant hemagglutination (MRHA) of human blood group (O) IRBCs in the presence of 2% D - mannose. The isolate showed strong MRHA characteristics of type 1 fimbriae under microscope (40x). The E.coli E.40isolate which produced the thickest biofilm and gave strong MRHA was elected to be the source of type 1 fimbriae.Type 1 fimbriae was extracted by heating and mechanical shearing and partially purified by Ultracentrifugation (48, 000xg for 3hrs). SDS - PAGE with a molecular weight 20, 000 Dalton.Anti - type1 fimbriae antisera were prepared in rabbits. The specificity and titration of anti - type1fimbriae antibodies were determined using IgG protein by radial immunodiffusion plate and bacterial agglutination. IgG antibodies to fimbriae type 1 were also detected in rabbit sera from immunized rabbit and non - immunized. Immunized rabbit test 1 had increases in Fim1 - specific IgG antibodies (9.5) mg/dl. Immunized rabbit test 2 had increases in Fim1 - specific IgG antibodies (8.6) mg/dl. The non - immunized rabbit had no increase in absolute IgG antibodies to Fim1.The antisera agglutinated bacterial cells up to 1/80 dilution confirming the presence and titer of specific antibodies against type1 fimbriae.The microtiter plate method was applied to estimate the role of the prepared anti - type1fimbriae antibodies in reducing the biofilim formation by E.coli. Prevention of bacterial adherence and subsequent biofilm formation to polystyrene microtiter plate was studied by employing different dilutions (1/10, 1/20, 1/40, 1/80, 1/160, 1/320, 1/640) of rabbit sera containing anti - type 1 fimbriae antibodies. The maximum inhibition of biofilm formation in terms of optical density (580 nm) was found in lowest dilution (1/10) (highest concentration of Abs). However, the minimum inhibition was observed in highest dilution of rabbit antisera (1/640) (lowest concentration of Abs). Here the inhibition occurs in a dose dependent manner as the biofilm formation increased dramatically with increasing in antisera dilution. The results also showed that there is a significant difference(P<0.05) among data treated with sera and data without sera and among serial dilutions.General urine examination and culture for urine that absorbed from test 2 and control was done (GUE) show that pus cell in urine was (1 - 2/HPF). There was no growth of bacteria in urine culture.The Histological section show that the Control and test 1 rabbit (have been immunized with fimbriae and adjuvant and injected with E.coli intra muscular) and Test 2rabbit (that has been immunized with fimbriae and adjuvant and injected with E.coli directly in bladder has normal epithelial cells and mucosa.

العلاقة بين انتاج الانزيم المحلل للكولاجين وتكوين الغشاء الحياتي بوساطة بكتريا Pseudomonas aeruginosae == The Relationship Between Collagenase Production And Biofilm Formation By Pseudomonas Aeuroginosa

اسم المؤلف: امال عزيز كريم السعدي
اسم المشرف: شذى سلمان الطحان
الموضوع العام: علوم الحياة
السنة: 2014
الدرجة: دكتوراه
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: A total of 359 samples divided as 228 clinical and 131 non clinical specimens were collected during 2012 from four hospitals in Baghdad city including : Al - Kadhymia Teaching hospital, Baghdad Teaching hospital, The Burn Specialist Hospital and Al - Imam Ali hospital, for isolation of P.aeruginosa to study the correlation between collagenase production and biofilm formation. Eighty two Pseudomonas isolates were screened for biofilm formation, 28 isolates were classified as strong biofilm formers, 25 as moderate and 27 as weak biofilm former. The 28 isolates were identifid by VITEk - 2 Compact system which confirmed that the isolates were P.aeruginosa. Collagenase production assay was used to screen 28 isolates that were strong biofilm formers inorder to detect the ability of these isolates to produce collagenase, the substrate of collagenase (collagen) was purified localy from bovin tendon and the results showed that just 8 isolates could grow in mineral salt media with collagen after 4 days of incubation. The factors affecting biofilm formation and collagenase production were studied to determine the optimual conditions for their production, those factors included : 1 - Nitrogen sources represented higher influence on collagenase production specialy (yeast extract) in media containing collagen than other media without collagen as a substrate. The specific activity differed between the 8 isolates, biofilm formation also became more pronounced with (yeast extract), while NH4Cl and NaNO3 depressed biofilm formation at the same conditions. The statistical analysis between the two parameters (biofilm and collagenase) according to different nitrogen sources demonstrated highly significance at p?0.01 with yeast extract and casein. 2 - pH, results showed that the best pH for production was 7 for both collagenase and biofilm.The statistical analysis for determination the relationshipe between the two parameters showed highly significance at p ?0.01 for different pH. 3 - The maximum production of the two parameters was at 35?C temperature which gave highly significance at p?0.01 with defferent temperature. 4 - Long incubation periods revealed increasing in collagenase production and biofilm formation which represented highly significance detween them when incubation periods were prolonged at p?0.01. Results of this study showed that collagenase production increases when bacteria switch from a planktonic to biofilm phenotype. This indicates that biofilms and collagenase are more virulent and have a greater ability to cause tissue destruction. The REP - PCR analysis using BOX - primer, showed a clusters genetic relatedness among the isolates. The isolates were grouped according to the REP - PCR in 9 different genotypes, named cluster 1 to 3 which included C1, C2, C3 with relatedness : 8 (80%), 8 (86%), 3 (80%) respectively. A19 and A20 both of them were not included in any cluster, they have 78% similarity.The REP - PCR analysis showed that the genotypic relatedness is consistently high between the 8 producer isolates and non producer isolates (13), showed similarity reached 86

التحري عن الاميبا الحالة للنسج/ الاميبا المتغايرة Entamoeba histolytica/Entamoeba dispar في عينات البراز للمرضى با ستعمال تقنية PCR == Detection of Entamoeba Histolytic /Entamoeba Dispar In Stool Specimens By Using PCR Technique

اسم المؤلف: بثينة عبد الحمزة حسون الزبيدي
اسم المشرف: اخلاص مشرف عيدان
الموضوع العام: علوم الحياة
السنة: 2013
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تسلط الدراسة الحالية الضوء على تشخيص وتحديد نسبة الاصابة بطفيلي الاميبا المرضية المتمثلة بالاميبا الحالة للنسج Entamoeba histolytica وتمييزها عن الاميبا غير المرضية المتمثلة بالاميبا المتغايرة Entamoeba dispar اللتين تتمايزان بشكلهما المتماثل في كلا الطور | This study sheds light on the determination and diagnose of the percentage of infection of like Entamoeba histolytica and differentiate it from the non pathogenic Entamoeba dispar that were morphologically identical in both cysts and trophozoite phase in two different groups : the first group includes 50 stool samples of patients suffering from diarrhea and abdominal pain (symptomatic group) while the second group includes 95 stool samples of patients not suffering from diarrhea and abdominal pain (Asymptomatic group).In addition to that, 20 stool samples were collected from healthy individuals as a control these samples were collected patients of AL - Zafaranyia General Hospital and AL - Alwyia Childhood Teaching Hospital in Baghdad from July, 2011 to May, 2012.These samples belong to different ages (1 year - < 50 years) of different sexes (males and females). Entamoeba samples were diagnosed by using two methods : the first one is the wet mount as a General Stool Examination(GSE) after macroscopic examination for sample and classifying them according to their consistency (solid, semisolid and liquid) and color (brown and yellow) and presence of blood and mucous in addition to diagnosing them microscopically to detect the presence of pus cells and both phases trophozoite and cyst for Entamoeba histolytica.While the second method that was depended in diagnosis is duplex polymerase chain reaction (dPCR) by using two pairs of genes for detection of their amplification in DNA sample isolated from stool. The first pair is cystein proteinase which represents one of virulent factors in Entamoeba histolytica parasite as a tissue invader. The second pair encodes the surface antigen present on the surfaces of both parasites E. histolytica and E. dispar. It is represented by Actin gene (Act). The results of the wet mount showed that in percentage of infection of both species (E.histolytica/E.dispar) the (54%) of patient symptom and (34.37%) patient a symptom.While results of the specificity and sensitivity showed that in positive sample wet mount negative PCR while negative sample wet mount showed that positive PCR and higher percentage of infection the Entamoeba dispar. While the results of the dPCR showed that in spite of the presence of both species Entamoeba pathogenic (Entamoeba histolytica) and non pathogenic Entamoeba (Entamoeba dispar) , the percentage of infection of Entamoeba histolytica was lower than that of Entamoeba dispar. This was clear by the detection of amplification the Reaction producets (dPCR) by using both genes : Actin &Ehcp5 where only 8 samples were detected and they were found to be positive amplification Ehcp5 and 31 samples were positive amplification in both groups of patients (symptomatic and a symptomatic). The percentage of infection in females was higher than that in males for all ages when using both tests (wet mount & PCR). More over the patients with less than (10) years old had higher percentage of infection in both sexes.In conclusion, it should not be depended on direct wet mount technique for the identification of infected parasite Entamoeba histolytica and differentiating it from Entamoeba dispar because of their high homology. That the molecular examination is the only method that is able to determine the kind of infection with parasite Entamoeba

انتاج انزيم السيليلز من عزلة محلية لبكتريا B167 Streptomyces sp. واستخدامه في انتاج الوقود الحيوي == Cellulase Production From Local Isolate of Streptomyces Sp.B167 And Its Application In Biofuel Production

اسم المؤلف: بنان محمود سليمان
اسم المشرف: ناظم حسن حيدر
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: ماجستير
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: هدفت الدراسة الحالية الى انتاج انزيم السليليز من بكتريا الستربتومايسس ودراسة تاثير بعض الظروف الزرعية على انتاج الانزيم; انتاج الوقود الحيوي من المخلفات السليلوزية من خلال التحلل المائي للمخلفات بالاحماض والانزيمات المايكروبية. تم غربلة 74 عزلة لبكتريا St | The current study was aimed to produce biofuel from cellulosic waste material degraded by local isolate Streptomyces. Seventy four isolates of Streptomyces were screened for cellulase production in solid and liquid media. The results showed higher capability of isolate Streptomyces sp. B 167 for cellulase production and bioconversion of cellulose. Therefore, it was selected for further studies. The results of optimization revealed that the cellulase enzyme productivity by the isolate Streptomyces sp. B 167 reached to 2.1 and 2.28 U/ml after 48 h of incubation time and pH 7 respectively. Cellulase productions in tested isolate improved (2.57 U/ml) by supplementation of cellulose liquid medium with 1 % of yeast extract as nitrogen source. Additives of carbon sources like (manitol, glucose, maltose, sucrose and starch) to the process of saccharification did not improve the cellulase productivity. The bioconversion of cellulosic waste to reducing sugar was maximum with Banana peels (77.78 %) followed by the rice husk (75.56 %), orange peels (71.11 %), corn steep peels (60.0 %) and lowest bioconversions (53.33 %) were recorded with sawdust. The degradation of cellulosic waste increased with increasing substrate concentration. Maximum cellulase productivity (3.18 U/ml) and bioconversion (86.1 %) was obtained at 3 % (w/v) of cellulosic waste (Banana peels). Saccharification of cellulosic waste with different treatment methods was studied. The pretreatment of cellulosic waste with 1 % HCl and H2SO4 produces 21 and 15.8 g of reducing sugar / 100 g of cellulosic waste. In comparison, hydrolysis with Streptomyces sp. B 167 enzymes resulted a significantly higher amount of reducing sugar yield (25 g / 100 g cellulosic waste). Further fermentation of cellulosic hydrolysates was performed using Saccharomyces cerevisiae using stationary fermentation condition. Maximum yield of ethanol were (0.30, 0.19 and 0.10 g ethanol / g glucose) observed with Streptomyces sp. B 167 enzymes, HCl and H2SO4 hydrolysates respectively after 48 h of fermentation

التحري عن عدد من المعادن الثقيلة والتلوث البكتيري في بعض الخضروات المعلبة والطازجة المستوردة في مدينة بغداد == Determination of Several Heavy Metals And Bacterial Contamination In Some Imported Canned And Fresh Vegetables In Baghdad

اسم المؤلف: حسين خالد نعمان
اسم المشرف: ايثار كامل الميالي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: البيئة - التلوث البيئي
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تم اخذ ستة وثلاثين عينة من الخضروات المعلبة وخمس عينات من الخضروات الطازجة, وتجميعها من مناطق واسواق مختلفة من مدينة بغداد بشكل عشوائي خلال الفترة من شهر تشرين الاول 2013 الى شهر نيسان, 2014 حيث تضمنت الدراسة التحري عن تراكير بعض العناصر الثقيلة وهي (الرص | In this study, thirty six samples of canned vegetables and five samples of fresh vegetables were collected randomly from different markets of Baghdad city from October 2013 till April 2014. The study included determining of the concentration of some heavy metals (lead, nickel, zinc and iron) by atomic absorption spectrophotometery and the bacterial contamination in samples, also comparing the canned vegetables with fresh vegetables. It was found that the higher concentrations of heavy metals in canned vegetables as the following : lead 1.179 µg/g in olive, nickel 0.908 µg/g in olive, zinc 10.143 µg/g green pea and iron 90.601µg/g in white asparagus. The lowest concentrations were as the following : lead 0.002 µg/g in green asparagus, nickel 0.019 µg/g in mushroom, zinc 0.528 µg/g in white asparagus and iron 4.061 µg/g in green pea. In fresh vegetables, it was found that the highest concentrations of heavy metals were as follows : lead 0.919 µg/g in green pea, nickel 1.108 µg/g in green pea, zinc 4.304 µg/g in mushroom and iron 43.618 µg/g in tomato. The lowest concentrations were as the following : lead recorded 0.011 µg/g in tomato, nickel recorded 0.022 µg/g in tomato, zinc 0.876 µg/g in green pea and iron recorded 11.081 µg/g in green pea. The identification of the bacteria done by some identification tests for gram negative bacteria, the testes include growth on MacConkey agar, growth on EMB agar, IMViC testes and motility test. The identification tests for Gram positive bacteria included growth on manitol salt agar, growth on staph 110 agar and motility test. The bacterial tests ensured that there is no bacterial growth was detected in the canned vegetables, except some samples (white asparagus, green asparagus and mushroom) of December 2013, while it was detected in fresh vegetables. The bacterial species that isolated in these samples were E.coli, Klebsiela pneumoniae, Bacillus cereus and Staphylococcus aureus.

التاثير التثبيطي لبعض المستخلصات على فعالية انزيم Angiotensin converting enzyme وبعض المؤشرات الحيوية المساهمة في ارتفاع ضغط الدم == Inhibitory Effect of Some Plant Extracts On Angiotensin Converting Enzyme Activity And Some Biochemical Marker That Associated With Hypertension

اسم المؤلف: رؤى اياد يوسف
اسم المشرف: غازي منعم عزيز | حسن فياض
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: ماجستير
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: The present study was sought to investigate the inhibitory effect of four crude aqueous plant extracts : Zingiber officinale Roscoe (ginger), Camellia sinensis (Green tea), Olea europaea (Olive) and Hibiscus sabdariffa (Rosella) on key enzyme linked to hypertension, Angiontensin - I Converting enzyme (ACE), and on the oxidant/antioxidants status, lipid profile in vitro and in vivo studies. Study of some biochemical biomarker demonstrated that antioxidant enzyme, oxidant enzyme, liped profile and ACE level for 75 hypertension patients. Antioxidant enzymes superoxide dismutase (SOD) and glutathione peroxidase (GPx) were shown to have cross relationship with ACE level in hypertension groups, while lipid profile have positive relationship with ACE level in hypertension groups. ACE activity for the four groups G1, G2, G3, G4 were 19.61±3.97, 21.3 ± 1.95, 28.06 ± 5.34 and 32.74±8.19 ng/ml respectively. From these results we concluded that ACE was associated with hypertension and its modulated by drug or herbal extracts. Angiotensin - I Converting enzyme was extracted from sheep lung with specific activity 0.08 U/mg, then the crude ACE extract was concentrated with sucrose by dialysis with specific activity 0.1 U/mg, purification fold was 1.25.The enzyme was purified partly by ion - exchange chromatography using DEAE - cellulose with specific activity 0.5U/mg, yield 30% and purification fold 6.25. ACE activity was determined using N - [3 - (2 - furyl) acryloyl]L - phenylalanyl glycyl glycine (FA - PGG) as a substrate. Results for in vitro ACE inhibitory activity using plant extracts (ginger, green tea, roselle and olive) showed that the all four crude aqueous plant extracts had inhibitory activity in different values when used in the same concentrations about (1 mg/ml), and ginger extract possessed higher inhibitory activity than other three extracts. The ACE inhibitory potency of the ginger extract was found to be significant (P<0.001) when compared with the standard anti - ACE inhibitor drug (Captopril) at the same concentration. The inhibitory activity of ginger extract with different concentration (25, 50, 100 mg/kg) in L - N - ? - nitro - L - arginine methyl ester (L - NAME) induced hypertensive mice was evaluated. Acute oral administration with L - NAME 50mg/kg.b.w causes a rise in blood pressure in normal mice. Administration of aqueous ginger extract (25, 50 and 100 mg/kg) for 4 weeks in L - NAME treated mice significantly (P<0.05) reduced the mean arterial blood pressure compared with L - NAME animals without treatment, with decreasing the serum levels of ACE; while the activity of superoxide dismutase (SOD) and glutathione peroxidase(GPx) showed a significant elevation in ginger treated L - NAME induced hypertensive mice. The results suggest that ginger extract could prevent the development of high blood pressure induced by L - NAME probably can be attributed to prevent or reduce the oxidation process and the inhibition of physiological processes of a substance L - NAME and so as it contains ginger compounds of polyphenols, which inhibits the activity of the ACE and prevent oxidation of fats and repair System Antioxident. Our study concluded that ginger might act as a natural alternative to better and safer in the prevention of negative impacts and risk factors such as high blood pressure and lipids.

تاثير انزيم SNase المنقى من العنقودي في الغشاء الحياتي للايشيركية القولونية والكليبسيلا الرئوية == Impact of Snase Purified From Staphylococcus Aureus On Biofilm of Klebsiella Pneumoniae And Escherichia Coli

اسم المؤلف: هند تحسين ابراهيم
اسم المشرف: حارث جبار فهد المذخوري
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الاحياء المجهرية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: SDS - PAGE showed that a single sharp band with an approximately 16.8 KDa molecular weight has been seen. A matter indicates that the enzyme is consistently pure. PCR technique was applied to approve the existence of nuc gene in S.aureus Nevertheless, only those which depicted positive results on DNase agar harboured nuc gene, as it is specified by single band appearance of nuc at assumed molecular weight (ca. 255 pb) of marker that being used. The current study findings highlighted the participation of SNase purified from S. aureus in significant (P< 0.05) preventing biofilm formation by E. coli and K. pneumoniae compared with untreated controls. Evidently, the inhibitory effect of SNase on biofilm formation is undoubtedly perceived, indicating the degradation of the structural major component of biofilm formation (i.e. extracellular DNA). Results revealed that SNase was able to significantly (P< 0.05) reduce the number of the uropathogens; E. coli and K. pneumoniae attached to the uroepithelial cells. 1 Chapter one : Introduction and literature Review 1. Introduction and Literature Review 1.1. Introduction Staphylococcus aureus is a persistent human pathogen that is responsible for a range of diseases that vary widely in clinical presentation and severity. The pathogenesis of S. aureus infection is a complex process involving a diverse array of secreted and surface - associated virulence determinants that are coordinately expressed at different stages of infection (Loughman et al., 2009). Escherichia coli is a genetically diverse species that causes a variety of infections which fulfill many or all of the proposed criteria for biofilmassociated infections (Kaper et al., 2004). Klebsiella pneumoniae is an opportunistic pathogen responsible for a wide range of nosocomial infections. One important factor associated with virulence in K. pneumoniae is its capacity to adhere to surfaces and form biofilms (Cruz et al., 2012). Bacteria often exist as sessile communities called biofilms which are exquisite structures caused by a genetically programmed developmental process. It is estimated that biofilms are involved in 65% of human bacterial infections, since cells in biofilms are 1000 times more resistant than cells in the planktonic state, making medical treatments fail (Shal? et al., 2011). Extracellular DNA (eDNA) plays a significant role in biofilm formation, as revealed by studies in several bacteria including E. coli (Nakao, 2012) and K. pneumoniae (Whitchurch et al., 2002); however, there is no definite proof on a cause - and - effect relationship between DNA release and biofilm formation (Beenken et al., 2012) or becomes a key component of the macromolecular scaffold in many different biofilms (Jakubovics et al., 2013). In rare cases eDNA has been shown to inhibit bacterial settlement. Therefore, it is possible that nuclease mediated eDNA degradation would therefore promote adhesion. Consequently, it is not clear whether microbial nucleases contribute to the gross biofilm structure in clinically relevant situations (Sheilds et al., 2013). 2 Chapter one : Introduction and literature Review All previous studies used both commercial bovine and recombinant human DNaseI in the disruption of medically important biofilms; whilst, extracellular nuclease of S. aureus (SNase) was used against biofilm of S. aureus themselves (Benenken et al., 2012b ; Kiedrowski et al., 2014). Thus, to date, the role of S. aureus exonucleases in biofilm of other bacteria remains unclear. However, in the present study SNase is used against biofilm of other bacterial species (viz. K. pneumoniae and E. coli). To address this, the following steps were undertaken : 1 - Investigating the negative impact of SNase extracted from S. aureus on K. pneumoniae and E.coli biofilm formation. 2 - Studying the preventive activity of SNase on the adherence of K. pneumoniae and E. coli on uroepithelial cell.

دراسة بيئية لبعض انواع صنف بطنية القدم الارضية في ثلاث محافظات وسط العراق == An Ecological Study For Some Terrestrial Gastropoda Species In Three Provinces Middle Iraq

اسم المؤلف: ايمان حسين عبد
اسم المشرف: عماد الدين عبد الهادي المختار
الموضوع العام: علوم الحياة
السنة: 2015
الموضوع الدقيق: البيئة
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: اجريت الدراسة الحالية للتعرف على انواع صنف بطنية القدم الارضية المتواجدة في بعض محافظات وسط العراق (بغداد, بابل, كربلاء). اذ تم تسجيل الملاحظات الحياتية والتعرف على بيئاتها المفضلة وقياس العوامل البيئية ذات الاهمية. حيث تم تشخيص ثلاثة انواع وهي : Cornu as | The present study was conducted to identify the terresterial gastropoda species located in some provinces of middle Iraq (Baghdad, Babylon and Karbala). They were record Biological observations on their environment and learn about their prefer environments and to measure the important ecological factors. Three species were diagnosed : Cornu aspersum specie belong to Helicidae family, Monacha cantiana and Candidula gigaxii species belong to Hygromiidae family. Monthly sampling was conducted from (October 2013 - July 2014) of the three provincs on two sites per each provinc, Where the samples were collected randomly by five repeaters of one square meter once a month. The study also included soil ecological properties measuring : soil temperature, soil pH, Electrical conductivity, percentage moisture, organic matter content and soil texture.The results showed soil temperature values ranged between (8 - 30) C?, soil pH (7.33 - 7.96), Electrical conductivity (0.7 - 4.1) ds/m, percentage moisture (9 - 33) % , organic matter content (0.81 - 2.88) %. The results showed percentages rate for clay, silt and sand for Jadiriyah (38.39, 49.18, 12.43)%, Zafaraniya (36.66, 51.53, 11.81)%, Alexandria (37.93, 52.54, 9.53)%, Hindyia dam (40.54, 53.05, 6.41)%, Hosseinie (36.28, 45.81, 17.91)% and Twerij (37.79, 50.20, 12.01)%. Generally soil texture clay silt sandy soil for all study sites. The relative abundance of the studied species was recorded, The lowest value for Candidula gigaxii specie was 7.3 % in March in Hindyia dam, while the highest value was recorded for Cornu aspersum specie 75.0 % in December 2013 in Jadiriyah. Rates of population density (individuals / m 2) were calculated for the studied specimens and the results showed the presence of significant differences when comparing the study sites during research period. The population density rates for species the results showed the lowest value for Candidula gigaxii specie 0.4 (individual/m²) in October 2013 in Jadiriyah, and the highest value for Cornu aspersum specie 19.4 (individual/m²) in Janeuary 2014 in Jadiriyah. The results showed that Candidula gigaxii specie is found in sites (Jadiriyah, Zafaraniya, Hindyia dam(along research period, While the results did not record the presence of it in sites (Alexandria, Hosseinie, Twerij).The study showed presence of positive and negative significant relationships between species and soil ecological properties, as it were for Cornu aspersum specie negative significant relationship with air and soil temperature (0.827, 0.763) respectively, positive significant relationship with moisture and organic matter content (0.703, 0.880) respectively, while the results did not record significant differences with pH and Electrical conductivity (0.096, 0.168) respectively. Monacha cantiana specie has recorded negative significant relationship with air and soil temperature (0.431, 0.553) respectively, positive significant relationship with percentage moisture and organic matter content (0.368, 0.550) respectively, while did not record significant differences for pH and Electrical conductivity (0.214, 0.096) respectively. The results showed for Candidula gigaxii specie negative significant relationship of air and soil temperature (0.504, 0.322) respectively, positive significant relationship with moisture and organic matter content (0.380, 0.569) respectively, While did not record significant differences with pH and Electrical conductivity (0.088, 0.170) respectively.

التحري عن بعـض عوامل الفوعة لبكتريا المكورات Enterococci المعوية المقاومة للمضاد الحيوي الفانكومايسين == Detection of Some Virulence Factors of Vancomycin - Resistant Enterococci

اسم المؤلف: حيدر صباح كاظم الخماسي
اسم المشرف: مي طالب فليح
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الاحياء المجهرية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تم الحصول على (20) عزله لبكتريا المكورات المعوية البرازية من اصل (135) عينة جمعت من مستشفى مدينة الطب ومستشفى الكندي وهي كما ياتي (15 عينة الادرار, 60 عينة دم, 50 عينة من قنوات الجذر للاسنان و10 عينة من الحروق).اختبرت الحساسية لهذه العزلات العشرون لـ 11 | Clinical sampling was carried out between September and December 2013, Twenty Enterococcus faecalis isolates were obtained from 135 clinical specimens. The samples included of patients in Medical City Hospital and Al - kindy Hospital (15 urine, 60 blood, 50 root canal and 10 wound swabs) Antibiotics susceptibility test for 20 isolates was done against 11 antibiotics, it was revealed that the isolates showed multi drug resistance were (18) isolates. The vancomycin susceptibility was determined by the minimum inhibitory concentration (MIC). Resistant and intermediate resistant to vancomycin was distributed among isolates at a ratio of 65% and 20%, respectively. Imipenem was found to be the most bactericidal agent against E. faecalis isolates E. faecalis virulence factors were detected phenotypically, The results showed that all isolates (100%) were hemolysin, protease and aggregation substance producer. 30% of isolates showed an ability to produce gelatinase. While (40.7%) of the isolates were a lipase producer. The results of the tube method showed that all E. faecalis isolates (100%) were slime layer and biofilm producer but the amount of adherent layer were different among the isolates ranged from strong to moderate and weak.The extracted DNA was subjected to Polymerase chain reaction (PCR) technique in a monoplex pattern to amplify the virulence factor Enterococcal Surface Protein (esp) which is chromosomal, results of this investigation showed that 20 (100%) E. faecalis isolates gave the amplicon size 933 base pair for the esp gene.The genetic determinants of Vancomycin - Resistant vanA and vanB genes were amplified using monoplex and multiplex PCR techniques in order to identify vancomycin resistant (van+) and sensitive (lacking van) among (13) E. faecalis. The vanA, vanB genes were detected in 11 and 4 E. faecalis isolates, respectively. The results of monoplex and multiplex PCR revealed that the molecular weight of vanA and vanB genes were 550 and nearly 600 bp, respectively. The results revealed that the vanA and vanB amplicons have a genetic variation in their molecular weight during the electrophoresis of PCR product.

التحري عن الطفرات في جيني CNTNAP2 وIL1RAPL1 في مرضى التوحد == Mutation Screening of CNTNAP2 And IL1RAPL1 Genes In Autistic Patients

اسم المؤلف: بشير كاظم خرميط
اسم المشرف: عبد الكريم عبد الرزاق القزاز
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: ماجستير
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: ان اضطرابات طيف التوحد هي مجموعة من الظروف التي تتميز بضعف في التواصل الاجتماعي ونمطية في السلوك. يختلف الاشخاص المتوحدين اختلافا كبيرا في التطور المعرفي والتي يمكن ان تتراوح من فوق المتوسط الى العجز في التفكير. رغم ان اضطرابات طيف التوحد هي تورث بشكل كبي | The autism spectrum disorders (ASDs) are a group of conditions characterized by impairments in reciprocal social interaction and communication, and the presence of restricted and repetitive behaviors. Individuals with an ASD vary greatly in cognitive development, which can range from above average to intellectual disability (ID). While ASDs are known to be highly heritable (~90%), the underlying genetic determinants are still largely unknown. The research studies correlate between Contactin - associated Protein - Like 2 (CNTNAP2), Interleukin - 1 Receptor Accessory Protein - Like1 (IL1RAPL1) genes and ASDs. This study includes forty autistic patients and forty non autistic children as control groups (twenty unaffected sibling and twenty unrelated children). The age of autistic and non autistic children was ranged from 3 to 10 years. Blood samples of autistic patients were collected from Rahman specialist centre for the care and service autistic children in Baghdad. DNA was extracted from blood samples for molecular detection of CNTNAP2 and IL1RAPL1 mutations associated with ASDs by the use Polymerase Chain Reaction (PCR) technique and sequence analysis. PCR reaction was performed to amplify exons (14, 17 and 20) of CNTNAP2 gene that encode to CASPR2, a member of the neurexin family which functions in the nervous system as cell adhesion molecules and receptors. The PCR results revealed that identical bands related to the CNTNAP2 exons were present in all samples. Therefore, five samples (four from autistic patients and one from control sibling) were selected for genotype analysis of CNTNAP2 exons (14, 17 and 20) by direct sequencing. Genotype analysis revealed that there were no any variants in CNTNAP2 exons, but it shows that four different mutations were identified in non coding region (introns) of the CNTNAP2 gene. These mutations were seen only in autistic patients but absent in control sample. Three of these mutations are single nucleotide polymorphisms (SNPs) (rs3779031 A/G in 2118282 position, rs3779032 A/C in 2118436 position and T/G in 2117905 position). The other mutations were deletion in one nucleotide (Del A/ - in 2117901 position). SNP rs3779032 A/C are located at intron 21 while other mutations are located at intron 19. The current study showed that two common SNPs (rs3779031 and rs3779032) in CNTNAP2 were strongly associated with ASDs, where the frequencies of these SNPs were relatively high. SNP rs3779031 identified in two autistic patients while rs3779032 identified in three autistic patients from four unrelated families with ASDs. PCR reaction also was performed to amplify exons (3, 4, 5, 6, 7, 8 and 9) of IL1RAPL1, a gene implicated in calcium - regulated vesicle release and dendrite differentiation. The PCR results show a large intrgenic deletion (Deletion of exons 3 and 4) in six autistic patients, two of these patients were twin. This deletion may be incomplete penetrance due to phenotypic heterogeneity of these patients. This study provides evidence of the role of genetic factors in the etiology of ASD and the important CNTNAP2 and IL1RAPL1 genes mutation of pathogencity ASDs.

الازالة الحيوية لليورانيوم والسيزيوم من الترب الملوثة بواسطة نبات الشعير == Phytoextraction of Uranium And Cesium From Contaminated Soil By Hordeum Vulgare Plants

اسم المؤلف: سيف صبار كامل
اسم المشرف: ناظم حسن حيدر
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: ماجستير
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Phytoremediation is defined as the use of green plants to remove pollutants from the environment or to render them harmless. Phytoremediation process can be classified based on the contaminant fate as; Phytoextraction, Phytotransformation, Phytostabilization, Phytodegradation, Rhizofiltration. In this work, the phytoextraction process was employed. A piece of land in the Botanical Garden at the University of Baghdad with an area of 25 m2 was prepared to plant the barley plant. Then, seeds of barley of type "Samir", which is an Iraqi kind that suitable for cultivation in Iraq, have been seeded. For U and Cs experiments, soil was mixed with a limited quantity of each U isotope for three different concentrations; 152 Bq/kg, 95 Bq/kg and 81 Bq/kg and for Cs106.5 Bq/kg, 79 Bq/kg and51 Bq/kg. For NPK and Urea experiments, different concentrations were tested to establish the requirements of these experiments. The LB4100 - W counting system includes the most complete data analysis software package was used to measure and calculate the alpha and beta concentrations and subsequently the overall activity concentration of any studied sample. Samples were prepared by following the Indian Standard method. For U, the experiment achieved by dividing it into four groups that differ in the spent time of agriculture in contaminated and clean (reference) soils. The results illustrated that the phytoextracted of U with planted period in contaminated soil, which were 31, 50, 63, 34 days, were 36.22, 54.84, 76.24, and 66.30 Bq/kgm, respectively. However, the 4th group differs comparing with other groups in the spent time of cleaned soil, which was 73 days. For Cs experiments, the work grouped similar to U experiment. The results of Cs phytoextraction showed that the absorbed Cs were 54.34, 100.69 and 109.07 for spent times in contaminated soil; 23, 43 and 57 respectively. Furthermore, barley plant has significant ability to phytoextract U and good ability to phytoextract Cs for all the three different concentrations. Besides, the results illustrated that the increase in the planted time in contaminated soils led to increase the quantity of phytoextracted isotopes. The results of adding K fertilizer showed a decrease in the ability of barley to absorb U, while the addition of urea enhanced the ability of barley. Finally, the following conclusion can be drawn from the present study that : barley is a good tool to phytoextract Cs rather than U and the use of urea fertilizer is suitable for enhanced the phytoextraction process.

الدور الوقائي لبكتريا البفديس ضد خمج الفئران ببكتريا الاشيريكيا القولونية المنتجة لذيفان الشيكا == The Protective Role of Probiotic Bifidobacterium Against Mice Infection With Shiga Toxin Producing E.Coli O157 : H7

اسم المؤلف: سمر مصطفى محمد
اسم المشرف: شادان عباس الوانداوي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الاحياء المجهرية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Six Bifidobacterum isolates were isolated from fully breast - fed healthy infant faeces on reduced de Man Rogosa and sharp medium (MRS - C). Isolates identified on the basis of, colonial and microscopical properties, biochemical tests, and fructose - 6 - phosphate phosphoketolase enzyme (F6PPK) activity assay in cellular extracts. Carbohydrates fermentation profile used for identification of isolates to species level. All bacterial isolates diagnosed as Bifidobacterium genus where in this study B. adolescntis was the predominant species (50%), (B4, B5 and B6), followed by B. breve (B3), B. longum (B1) and B. dentium (B2) each one represent 16.67%.Bifidobacterium isolates were screened for their antagonistic effects against test organism, clinical isolate of shiga toxin producing E.coli O157 : H7 (STEC), using agar - well diffusion method. The isolates B3 and B6 showed clear inhibitory actions, 22 mm and 15 mm diameter of inhibitions zones, respectively. The rest of the tested isolates did not pronounce any inhibitory activity.B. breve in vivo antagonistic behavior and the possible protective effects against STEC was evaluated, using streptomycin treated murine model. Murine intestines was stably colonized orally with B. breve for 14 days, in conjunction mice were challenged orally with STEC, 103 CFU / mouse / day on day 8 of experiment. Bacterteriological analysis of mice faeces at time intervals, was indicated high levels of bacterial colonization were achieved in intestine by B. breve and STEC.Colonization of mice intestine by B. Breve did not inhibited STEC cells from proliferation during infection phase. Hence, the excretion level of STEC in faeces reached to 2.4 x 10 6 CFU/ g of faeces.STEC infected mice showed no severe clinical signs, characterized by hairloss, lethargy, paralysis of fore limbs, and shed of loose faeces. In the B. breve - colonized group, the mentioned clinical signs were almost completely inhibited, except the lethargic of some animals.Immunological studies showed an increase in the levels of sIgA by 2.7 - fold from that of blood IgA in B. breve - colonized mice while, reversed values were recorded in mice infected with STEC, blood IgA level was 1.95 - fold higher than that of sIgA.Histological changes in spleen, liver, kidney, and intestine tissues of mice were studied. The histological sections clarified the protective roles of B.breve, where no effective histological disorders were appeared in B.breve and STEC - colonized mice. In the STEC - infected mice, the pathological abnormalities within the kidney was the predominant, diagnozed as ulcers in the lining membranes, glomerular and tubular epithelium necrosis, without evidence of glomerular thrombi, mild damages was appeared in liver and spleen, and characteristic attaching and effacing (A / E) lesions appeared in the large intestine sections

الاصابة ببكتريا Helicobacter pylori وعلاقتها بمرض تصلب الشرايين القلبية == Correlation Between Helicobacter Pylori Infection And Atherosclerotic Heart Disease

اسم المؤلف: رواء سعدي سلمان
اسم المشرف: مي خليل اسماعيل
الموضوع العام: علوم الحياة
السنة: 2014
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: مرض قصور الشرايين التاجية هو النتيجة النهائية لتراكم اللويحات العصيدية ضمن جدران الشرايين التاجية مسببة نقص الاوكسجين وبالتالي حدوث مرض القلب الاقفاري. ويعتبر من الامراض الشائعة واحد الاسباب الرئيسية لحالات الوفاة في العالم. اضافة الى عوامل الخطورة التقلي | Coronary artery disease (CAD) is the end result of the accumulation of atheromatous plaque within the walls of the coronary arteries resulting in shortage of oxygen supply and ischemic heart disease (IHD). It was consider as one of the most common diseases and major causes of worldwide morbidity and mortality. In addition to traditional risk factors for cardiovascular disease, nowadays, accumulating evidence indicates that a variety of infectious agents may contribute to pathogenesis of CAD. The present study evaluated the anti - Helicobacter pylori IgG and IgA and the role of virulence factor of H. pylori cytotoxin associated gene (Cag A) and vacuolating associated cytotoxin (Vac A) as a risk factors for CAD.Eighty patients were divided into 2 groups : first group was 70 patients with CAD, the other group contained 10 patients with another coronary artery disease; they were admitted to Ibn Al - Bitar Specialist Center for Cardiac Surgery in Baghdad between October 2013 and January 2014. Ten individuals used as a healthy control group. All blood samples were tested biochemically such as glucose test, urea test, creatinine test and lipid profile test(cholesterol, triglyceride, LDL and HDL) and all of them showed normal results. The present study revealed that males were affected more than females (3 : 1); with no relation between their ages and bacterial infection.Serum IgG and IgA was Estimated by indirect immunofluorescent (IIF) whereas Cag A, Vac A and high sensitive C - reactive protein (hs - CRP) measured by enzyme linked immunosorbent assay (ELISA) and compared to control group results.The incidence of the anti - H.pylori IgG was highly significantly prevalent in CAD patients 78.57% (55/70), than in control group 0% (0/10), also a high significant difference in another CAD patient group 100%(10/10) as compared to control group 0% (0/10) (P? 0.01).Similarly anti - H. pylori IgA in CAD patients and another CAD patient groups showed highly significant increase when compared to control group 37.14% (26/70), 30% (3/10) and 0% (0/10) respectively (P? 0.01).The incidence of the CagA - positivity was significantly prevalent in mean value (2.74±0.19) in patients with CAD and another CAD patient group(2.72±0.31) than in control group (1.64± 0.16) (P? 0.05). Same result was observed with Vac A antigen; mean value of patient group showed significant increase (1.299 ± 0.04) when compared to controls group (1.41±0.13) (P? 0.05). Also significant increase found between another CAD patient group(1.79±0.17) and control group (1.41±0.13) (P? 0.05). Furthermore; the present study revealed significant differences of concentration levels between hs - CRP in CAD patient group (4.95 ± 0.38 µg/ml) as compared to control group (0.77 ± 0.06 µg/ml), as well as a significant differences found between another CAD patient group (3.96 ± 0.96 µg/ml) as compared to control group (0.77 ± 0.06 µg/ml) (P? 0.05).

تاثير بعض المستخلصات النباتية في معايير بيولوجية مختلفة للفئران == Effect of Some Plant Extracts On Different Biological Parameters On Mice

اسم المؤلف: عقيل حيدر عطا الله
اسم المشرف: مؤيد صبري شوكت
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: ماجستير
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: اجريت الدراسة الحالية للتحري عن المركبات النشطة الموجودة في المستخلص الخام المائي والميثانولي لاوراق الاس والنعناع والريحان ودراسة تاثيرها على فعالية انزيم الاسيتل كولين استريز ومستوى الدهون ومستوى السكر ومستوى انزيمات الكبد(ALP وSGPT وSGOT) ومستوى الانتر | The present study was conducted to investigate the active constituents found in aqueous and methanolic crude leaf extracts of Myrtus communis, Mentha piperita and Ocimum basilicum, and studies it effect on the acetylcholinesterase activity, levels of lipids, level of glucose, level of liver enzymes (ALP, SGPT and SGOT) and level of Interleukins (IL - 2, IL - 4, IL - 6 and IL - 10) in laboratory mice (in vivo). The results of the phytochemical analysis of the crude aqueous and methanolic extracts of Myrtus communis, Mentha piperita and Ocimum basilicum contain active compounds : Phenols, Flavonoids and Tannins and missing of Steroids and Coumarines in all extract but Saponins and Alkaloids found in alcoholic extract only, while terpens were present in Mentha piperita and Ocimum basilicum and absent in Myrtus communis. The results of administrating animals with different extracts showed no significant difference on blood Acetylcholinesterase (AchE) compared with ethanol liquid diet, while the alcoholic and aqueous extracts of M. communis, M. piperita and O. basilicum in the serum of decreased Acetylcholinesterase level significantly(p?0.05), liver and brain [(1.25 ?pH/30 min, 1.23 ?pH/30 min, 1.28 ?pH/30 min, 1.20 ?pH/30 min, 1.26 ?pH/30 min, 1.28 ?pH/30 min), (0.35 ?pH/30 min, 0.34 ?pH/30 min, 0.34?pH/30 min, 0.36?pH/30 min, 0.42?pH/30 min, 0.39?pH/30 min), (0.32?pH/30 min, 0.37?pH/30 min, 0.39?pH/30 min, 0.36?pH/30 min, 0.34?pH/30 min, 0.37?pH/30 min)] respectively compared with animals fed on ethanol liquid diet [(1.37 ?pH/30 min), (0.47 ?pH/30 min), (0.45 ?pH/30 min)] respectively. The methanolic and aqueous extracts of M. communis, M. piperita and O. basilicum reported a significant decrease in level of the total cholesterol and Low Density Lipoprotein (LDL) [(181mg/dl, 186mg/dl, 175mg/dl, 172mg/dl, 181mg/dl, 184mg/dl), (118mg/dl, 121mg/dl, 114mg/dl, 109mg/dl, 118mg/dl and 120mg/dl)] respectively, when compared with animals fed on ethanol liquid diet [(195 mg/dl), (132mg/dl) ] respectively while no effect was reported on High Density lipoprotein. The level of triglyceride reduced after the treatment with ethanol liquid diet, and then the level increased after the treatment with M. communis and O. basilicum extracts. The methanolic and aqueous extracts of M. communis, M. piperita and O. basilicum have led to a reduction in the level of glucose in the serum which increased after the treatment with ethanol liquid diet. Methanolic and aqueous extracts decreased the liver enzymes (ALP, SGPT and SGOT) significantly to the normal level (18, 17, 21, 18, 20 and 21) KAU, (19, 19, 16, 13, 17, 17) IU/L and (21, 24, 17, 15, 17 and 19) IU/L respectively after the increase by the treatment with ethanol liquid diet (24) KAU, (26) IU/L, (28) IU/L as compared to control (20) KAU, (12.2) IU/L, (13.5) IU/L, respectively. The level of Interleukin - 2 and Interleukin - 4 in the serum significantly increased in the treatment of alcoholic and aqueous extract of M. communis, M. piperita and O. basilicum [(18 pg /ml, 17 pg /ml, 20 pg /ml, 18 pg /ml, 20 pg /ml, 20 pg /ml), (100 pg/ml, 110 pg/ml, 119 pg/ml, 108 pg/ml, 90 pg/ml, 92pg/ml)] in comparison with ethanol liquid diet treatment [(14 pg /ml), (77 pg/ml)] respectively. While the level of Interleukin - 6 and Interleukin - 10 increased significantly in the serum, when animals were fed with ethanol liquid diet [(259pg/ml) and (501pg/ml)] respectively, and then decreased significantly after the treatment of methanolic, aqueous extract of M. communis, M. piperita and O. basilicum reported [(198 pg/ml, 202pg/ml, 202pg/ml, 201pg/ml, 214pg/ml, 217pg/ml), (370 pg/ml, 385pg/ml, 200pg/ml, 280pg/ml, 350pg/ml and 350pg/ml)] respectively.

دراسة عدد من ملوثات الهواء وتاثيراتها البيئية في منطقتين مختارة من جانب الرصافة في بغداد == Study of Several Air Pollutants And Their Environmental Effects In Two Regions In Al - Rusafa Site In Baghdad

اسم المؤلف: شيماء هادي حمادي الدليمي
اسم المشرف: محمد نافع علي العزاوي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: البيئة - التلوث البيئي
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Several air pollutant concentrations such as Suspended Particulate Matter (SPM), carbon oxides (COx), sulfur dioxide (SO2), nitrogen oxides (NOx), methane (CH4), ozone (O3) and some heavy metals such as lead (Pb) , chromium (Cr), cadmium (Cd), and nickel (Ni). Were measured in selected areas of the Rusafa in Baghdad, Anda’lus square (as a commercial site) and Wazeria district (as industrial site).The results showed that the concentration of air pollutants from gases, SPM (NO2, CO, SO2, and SPM) and heavy metals (Pb, Cr, Cd, and Ni) were exceeded globally and locally permissible limits in both study sites, while the concentration of O3, CO2 were within the globally and locally standard limits in both study sites. Commercial site had recorded higher concentrations of (CO2, SPM, Pb) than those of industrial site. While the industrial site had more pollution with (NO, NO2, CO, CH4, Cr). Results showed a relationship between climate factors and air pollutants, where windspeed, temperature, and relative humidity had influenced on the concentration of air pollutants.Median Lethal Concentration (LC50) to nitrogen dioxide gas was identified, by exposing a community of 30 adult male mice. The mice weights were between 23 - 31gm and their age was 8 - 12 weeks. The mice were randomly divided into five groups (6 male of each group). The exposure periods were 20, 40, 60, 80, 100 minutes using different concentrations 50, 100, 150, 200 ppm.The results showed a higher mortality during 150 and 200 ppm concentrations, for exposure periods of 80 and 100 minutes, but other concentrations have not been recorded. LC50 was calculated 161.86 ppm for 80 minutes and 110.53 ppm for 100 minutes.

دراسة التاثيرات الحادة والمزمنة للمبيد العشبي - 4, 2 دايكلوروفينوكسي اسيتك اسد في نوعين من اسماك الكارب == Study The Acute And Chronic Effects of The Herbicide 2, 4 - Dichlorophenoxy Acetic Acid In Two Species of Carp Fish

اسم المؤلف: ضحى زكي السويفي
اسم المشرف: احمد جاسم محمد العزاوي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: البيئة - التلوث البيئي
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تضمنت الدراسة الحالية التاثيرات السمية الحادة والمزمنة لمبيد 2, 4 - d في نوعين من اسماك الكارب (الاعتيادي والعشبي)، استعمل في دراسة التاثيرات الحادة عدة لكلا النوعين قيد الدراسة وكانت ((170, 165, 160, 155, 145, 140, 130 و(140, 130, 115, 95, 70)ملغم/لتر ع | This study included acute and chronic effects of 2, 4 - d pesticide in two species of carp fish (Cyprinus carpio and Ctenopharyngodon idella) using several concentrations for the two carp fish species that were (130, 140, 145, 155, 160, 165, 170) and (70, 95, 115, 130, 140) mg/l respectively for 96 hours, to determine the median lethal concentration (LC50) and the behavioral changes was used as a standard of those effects. Whereas three concentrations (20, 40 and 60) and (10, 15, 25) mg/l respectively for the two carp species were used in the chronic exposure for six weeks. The behavioral, histological and hematological changes were used as a standard to observe these effects through the study period. The value of LC50 for common carp fish were 157.77, 157.25, 156.41 and 152.62 mg/l. For grass carp, LC50 were 115.92, 114.92, 112.94 and 96.52 mg/l for 24, 48, 72, 96 hrs of exposure to 2, 4 - d pesticide concentrations respectively.Behavioral changes were recorded more effects in high concentrations than in low concentrations. To discover the toxic effects of this substance on fish, many parameters were used. They included the clinical symptoms by erratic swimming, hyperactivity, loss of equilibrium with respiratory effects such as rapid gill movement and swam near the water surface. While in chronic effects, blood parameters were changed in Red Blood Cell R.B.C., White Blood Cell W.B.C., Packed Cell Volume P.C.V., Haemoglobin Hb and liver enzyme (GPT & GOT).Values elevated significantly according to the pesticide concentration (P?0.001) and exposure periods (P?0.05) in comparison with control. The histological examination of the gills, liver and kidney of the common and grass carp fish after chronic exposure to 2, 4 - d herbicide showed pathological changes and alterations such as fusion of the secondary lamella, epithelial lifting, blood congestion, epithelial hypertrophy of the lamellar epithelium and epithelial necrosis. In the liver, pathological changes were seen, including hepatocytes hypertrophy, cytoplasmic vacuolation, blood congestion and cellular necrosis. Degenerative changes of the renal epithelium, necrosis in renal tubules and occlusion of the tubular lumen where the pathological alterations in the kidney.

التفكك الحياتي لمبيدي الملاثيون والدورسبان باستخدام مزارع احاديه وخليطه من البكتيريا == Biodegradation of Malathion And Dursban By Mono And Mixed Bacterial Cultures

اسم المؤلف: فائزة كاظم عمران
اسم المشرف: عادل مشعان ربيع
الموضوع العام: علوم الحياة
السنة: 2015
الموضوع الدقيق: البيئة
الدرجة: دكتوراه
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: عزلت 45 عزلة بكتيرية محليه من مجموع 30 نموذج تربه ملوثة بالمبيدات والتي جمعت خلال فترات زمنيه مختلفة ومن مناطق مختلفه في بغداد. اختبرت قابلية العزلات البكتيريه على تفكيك مبيدي الملاثيون والدورسبان. اجريت غربلة اولية وثانوية باستخدام وسط الاملاح المعدنية ا | Forty five local bacterial isolates were isolated from thirty different soil sample contaminated with pesticide, These samples were collected from different Baghdad regions at different periods. The bacterial isolates were tested for their ability to biodegrade certain pesticides (Malathion and Dursban). Primary and secondary screenings were carried out using solid Mineral Salts Medium (MSM) and Liquid (MSM) with 100 ppm Malathion and Dursban at 37 0C, pH 7. Twenty seven isolates resistant to Malathion and Dursban were isolated. Out of 27 bacterial isolates from different locations in Baghdad. Results from primary screening showed that the 10 isolates had good growth, 5 isolates gave moderate growth, 12 showed weak growth and only 9 isolates failed to show any growth.According to current results, 10 bacterial isolates were tested for their ability to biodegradation of Malathion and Dursban in liquid medium, However, secondary screenings results by using minimal inhibition concentration(MIC) revealed that only four bacterial isolates had the highest ability to degrade Malathion and Dursban and subsequently were identified as Pseudomonas putida, Esherichia coli, Escherichia hermanii and Staphylococcus vitulinus by Vitek compact system respectively.The optimum conditions (incubation period, pH, temperature) for growth and biodegradation of Malathion and Dursban were examined. The obtained results indicated that the best incubation period was after 7 days, pH =6 and favorite temperature was 350C.Measurement physicochemical properties for soil pH, temperature (C°), electrical conductivity EC (µs/cm) for both Dursban and Malathion concentrations(ppm) collected from six different locations within Baghdad city. Biodegradation of Malathion and Dursban in soil inoculated with different bacterial mono - cultures and mixed - cultures were investigated. soil pH, temperature, electrical conductivity, cations and anions, on the population of native Malathion - Dursban tolerant bacteria in the cultivated soils of six sites. The result showed that soil physical properties like temperature and electrical conductivity affect significantly to native Malathion - Dursban tolerant bacterial density. Similarly, the soil chemical properties like pH, cations and anions had more effect on the abundance of Malathion - Dursban tolerant bacteria in the soil. However, the impact of soil organic carbon, organic nitrogen and available phosphorus was very significant. The results of the present study can be utilized for the development of effective bioremediation process for pesticide - contaminated soil. Under optimal conditions, Malathion and Dursban degradation was measured by using GC - MS analysis. The results revealed that Pseudomonas putida was the best isolate for degrading Dursban by monoculture isolate (47.18%) , while mixed culture(P.putida and S.vitulinus) was the best in degrading Malathion and Dursban that gave 90.84% and 81.055% respectively. Results also indicated that the number of byproducts produced by mono and mixed culture of Malathion and Dursban biodegradation. Whereas the results obtained from GC/Ms analysis revealed that not detected of toxic byproduct Malathion and Dursban degradation by Pseudomonas putida and Staphylococcus vitulins respectively.Moreover, under natural conditions.The study tested the ability of selected bacterial isolates (P. putida and S. vitulins) in biodegradation of Malathion and Dursban, the results showed slower biodegradation by selected bacterial isolates compared with laboratory conditions but study showed a intermediet product like phenol, diethyl phosphorothioate and oxon.The GC - MS results showed that the number of metabolic intermediates formed during the degradation of Malathion by bacterial mixed - culture were relatively higher in number than by bacterial mono - culture.The mass spectra of malathion containing samples treated with bacterial mono and mixed culture showed no any known toxic intermediates. The result indicated that the two main degradation products resulted from bacterial degradation, namely malathion monocarboxylic (MMA) and malathion dicarboxylic acid (MDA), the first one may convert into the latter over time. Some other degradation products may occur such as ethyl hydrogen fumarate (EHF) but in negligible amount.The result indicated that the main degradation products resulted from bacterial degradation of dursban is trichloropyridinol(TCP) and then de - chlorinated into 2 - pyridinol.The mass spectra results obtained in this study showed that the dursban was degraded to many metabolites.The results suggested that the bacterial isolates were not forming any toxic intermediates but no any intermediate was identified till R.T. 22 minutes. This indicated that dursban is probably completely metabolized by the isolates into smaller intermediatesThe isolate Pseudomonas putida isolated from soil contaminated with pesticides was identified genotypic tests. Molecular typing was performed by RAPD - PCR and comparison of the results to other Pseudomonas isolates. The result shows that genotyping differences between isolates and found the convergent percent biodegradation between this isolates of both selected pesticide, although from these differences, there was no more effect to biodegradation, which means that the biodegradation of Malathion and Dursban not related to genotype

تحديد شدة الاصابة الحادة والمزمنة لداء المقوسات الكوندية بواسطة مستويات (IL - 6, IL - 8, TNF - ?) == Determination of Acute And Chronic Toxoplasmosis By Estimation of IL - 6, IL - 8 And TNF - ? Levels

اسم المؤلف: لينا قاسم كاظم الزهيري
اسم المشرف: بان نوري القاضي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الحيوان
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: المقوسات الكونديه من الطفيليات الشديده النجاح في انشاء اصابة مزمنه طويلة الامد. وقد اجريت الدراسة الحاليه على 366 امراة (117 مجهضات، 141 حوامل، 108 غير متزوجات) جمعت من مستشفيات مختلفة في بغداد. جمعت عينات الدم لجميع المجاميع المدروسة خلال الفترة مابين تش | Toxoplasma is a highly invasive parasite which establishes a life - long chronic infection. The present study was performed on 366 women (117 miscarriages, 141 pregnant and 108 singles) aged (17 - 35) years old from different hospital in Baghdad. Blood samples were collected from all patients during the period of Oct.2013 until of Jan. 2014. Anti - toxoplasma antibodies in the sera of all samples by using two tests, Latex test (LAT) and ELISA (IgG), (IgM) while, the proinflammatory cytokine were estimated by evaluation of the cytokine such as (IL - 6, IL - 8, TNF - ?). The results were showed that : ? The infection rate of toxoplasmosis by LAT was (41.53%) which was more sensitive than ELISA IgG (36.85%), and miscarried women were diagnosed by higher anti - toxoplasma IgG antibodies 62/117(52.99%), while pregnant result were lower 30/108 (27.78%). ? The most frequent age group of chronic infection with T.gondii was (23 - 28) year in both miscarriage and pregnant women, and represented by 45.16%, 40% respectively. While the most frequent age group for a single woman was (17 - 22) years, and represent 46.511% of the total number of this group.? Seroprevalence of toxoplasmosis by ELISA IgM test revealed low sensitivity in different studied groups 25/366(6.830%), and miscarried women were diagnosed by a highly significant (P ?0.01) percentage of acute toxoplasmosis14/117(11.965%).and The age group of (17 - 22) years old diagnosed high significant (p?0.01) percentage of acute toxoplasmosis in all studied groups.? According to the distribution of infected miscarried women with toxoplasmosis and gestational age by ELISA IgM the result showed that most of miscarriages were occurred at the first trimester which considered high significant (p? 0.01) 8/14(57.42%). While, chronic infected women at the second trimester (4 - 7 month) diagnosed by significantly (P?0.01) higher percentage of miscarried 24/62(38.71%).? The level of pro - infalmmatory cytokine (IL - 6) in acute infected miscarried women with toxoplasmosis distincted with a significantly high increase (P? 0.05) (177.31±12.53 Pg/ml) in comparison to chronic infected one (119.36 ±14.07 Pg/ml).While, chronic infected pregnant women was low significantly (P ?0.01) (48.41± 2.79 Pg/ml) in comparison to acute infected one and other studied groups, ? The acute infected singles was (118.98± 15.68 Pg/ml) higher non - significantly (P?0.05) than chronic infected one (112.65 ± 17.91 Pg/ml) and both disease activity were significantly higher than its level in healthy singles.? The level of TNF - ? in acute infected miscarried women distincted with significantly higher (P?0.05) (97.46 ± 5.37 Pg/ml) in comparison to chronic infected women (69.55 ± 4.58 Pg/ml), Whereas the mean level of TNF - ? in pregnant infected women during acute phase (62.31 ± 3.82 Pg/ml) was significantly (P?0.05) higher than chronic infection (21.42 ±2.74 Pg/ml)? Single infected women showed high significant increase (P?0.05) of TNF - ? level (50.48 ± 7.42 Pg/ml) in comparison to chronic infected one (35.46± 5.36 Pg/ml) and both disease activity scored high significant increase (P?0.05) of TNF - ? in comparison to healthy singles (18.29 ± 1.02 Pg/ml).? Finally, the mean level of IL - 8 in miscarried women with positive infection with T. gondii during acute phase (187.92 ± 15.38 Pg/ml) was significantly (P?0.05) higher than chronic phase of infection (140.57 ± 13.87 Pg/ml).Whereas the mean level of IL - 8 in acute infected pregnant women (110.32 ± 9.13 Pg/ml) was higher significantly (P?0.05) than healthy pregnant (91.49 ± 7.59 Pg/ml) and healthy singles (88.82 ± 5.62 Pg/ml).? Infected single women showed highly significant (P?0.01) increased levels in both diseases activity in comparison to single women without infection (88.82± 5.62 Pg/ml).
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