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ترتيب النتاجات لتصغير مسالة جدولة الماكنة

Author name: سارة كامل حنون
Supervisor name: محمد كاظم زغير
General topic: Mathematics
Specific topic: Mathematics
Degree: Master
Language: English
University location: Dhi Qar
First pages:

دراسة الاضطراب الايونوسفيري المفاجئ (vlf) باستخدام تقنية == Studying the sudden ionospheric disturbance by using very low frequency (VLF) technique

Author name: نور جلال عبد الامیر
Supervisor name: حبیب حرز علاوي | علي جهاد كاطع
General topic: Physics
Specific topic: Physics
Degree: Master
Language: English
University location: Dhi Qar
First pages:

دراسة نظرية لدرجة حرارة الناقل وتاثير المستوى المتهيج في المضخم البصري شبه الموصل النقطي الكمومي == Theoretical Study of Carrier Temperature and influence of Exited State in Quantum Dot Semiconductor Optical Amplifier

Author name: كاظم عبد الحسن كاظم
Supervisor name: احمد حمود فليح
General topic: Physics
Specific topic: Semiconductors
Degree: Master
Language: English
University location: Dhi Qar
First pages:

دراسة نظرية لخصائص نبضة التحويل السلبي لعامل النوعية ونبضة ستوكس == A Theoretical Study of Passive Q - Switching and Stokes Pulses Characteristics

Author name: غفران زامل حسن
Supervisor name: عبد الكريم مهدي صالح النيازي
General topic: Physics
Specific topic: Physics
Degree: Master
Language: English
University location: Dhi Qar
First pages:

تعزيز كفاءة واستقرار الخلايا الشمسية الصبغية DSSCs من خلال دمج المواد النانوية في افلام التيتانيوم اوكسايد TiO == Enhancing Efficiency and Stability of Dye sensitized Solar Cells (DSSCs) through Incorporation of Nanomaterial In TiO2 Films

Author name: حوراء محمد خضير
Supervisor name: ماجد ريسان البحراني
General topic: Physics
Degree: Master
Language: English
University location: Dhi Qar
First pages:

تحضير تراكيب نانوية من اغشية اوكسيد الزنك الرقيقة لتطبيقات الخلايا الشمسية == FABRICATION OF NANOSTRUCTURE THIN FILMS FOR SOLAR CELLS APPLICATIONS

Author name: زهراء حسن وارد
Supervisor name: عواد عبد الرزاق سلمان | علاء جبار غزاي
General topic: Physics
Specific topic: Physics
Degree: Master
Language: English
University location: Dhi Qar
First pages:

التضمين في ليز النقطة الكمية في تجويف البلورة الفوتونية == Modulation in Quantum Dot Laser with Photonic Crystal Cavity

Author name: مهند احمد عبد المهدي
Supervisor name: شاكر ديوان سرسوح | مشتاق عبيد عليوي
General topic: Physics
Degree: Master
Language: English
University location: Dhi Qar
First pages:

تاثير التغذية البصرية العكسية والحقن البصري الخارجي على الشواش في الثنائي النقطي الكمي الباعث للضوء == Effect of Optical Feedback and External Optical Injection on Chaos in QD - LED

Author name: حسين عواد زمزوم
Supervisor name: حسين برغوث الحسيني
General topic: Physics
Specific topic: Physics
Degree: Master
Language: English
University location: Dhi Qar
First pages:

تحضير جسيمات النحاس النانوية بطريقة السلك المتفجر == Preparation of Copper Nanoparticles by the Exploding Wire Technique

Author name: رجاء شعلان صيوان
Supervisor name: عماد عبد الرزاق سلمان | مهند علي عبد
General topic: Physics
Specific topic: Physics
Degree: Master
Language: English
University location: Dhi Qar
First pages:

دراسة حركيات ليزر النقطة الكمية == Study of the Dynamics of Quantum Dot Laser

Author name: زهراء خليل شرباك
Supervisor name: شاكر ديوان سرسوح
General topic: Physics
Specific topic: Physics
Degree: Master
Language: English
University location: Dhi Qar
First pages:

الكفاءة الكمية للخلايا الشمسية النقطية الكمية من نوع TiO و 2 CdSe ,CdS == Quantum Efficiency of CdS, CdSe and TiO2 Quantum Dot Solar Cells

Author name: تحسين داخل منصور
Supervisor name: سامر مهدي عبد المحسن | امين حبيب السيد جاسم
General topic: Physics
Specific topic: Physics
Degree: Master
Language: English
University location: Dhi Qar
First pages:

مزج الامواج في المضخم البصري شبه الموصل == Wave - Mixing in Semiconductor Optical Amplifiers

Author name: ريام حسين علي
Supervisor name: احمد حمود فليح
General topic: Physics
Specific topic: Semiconductors
Degree: Master
Language: English
University location: Dhi Qar
First pages:

دراسة امكانية استخدام طاقة الرياح لانتاج الكهرباء في مدينة السماوة == A Study of Possibility of Using the Wind Energy to Produce the Electricity in Samawa City |

Author name: مها حاتم كامل
Supervisor name: عبد الكريم مهدي صالح
General topic: Physics
Specific topic: Physics
Degree: Master
Language: English
University location: Dhi Qar
First pages:

دور العناصر النزره والاسمة في خصوبة نساء متلازمة تكيس المبايض في الناصرية == The role of trace and toxic elements in productive of female with polycystic ovary syndrome in AL - Nasiriyah

Author name: نبا نعمة حميد
Supervisor name: ساجد حسن كزار | ايناس صالح الخياط
General topic: Chemistry
Specific topic: Chemistry
Degree: Master
Language: English
University location: Dhi Qar

تخليق وتشخيص ودراسة مضادات الاكسدة لبعض المشتقات الجديدة (لداي هايدروبرميدين/ثايون) == Synthesis, characterization and Antioxidant Study of some new Dihydropyrimidine - 2 - (1H) - ones /thion derivative

Author name: نور ريسان علي
Supervisor name: محمود شاكر مكطوف
General topic: Chemistry
Specific topic: Chemistry
Degree: Master
Language: English
University location: Dhi Qar

تخليق وتشخيص ودراسة الفعالية البايولوجية لبعض مشتقات الموناسترول ثايونس الجديدة == SYNTHESIS AND CHARACTRIZAITION AND STUDY BIOLOGICAL ACTIVITY OF SOME NEW MONASTROL THIONES DERIVITATIVE

Author name: احمد احسان فليح حسن
Supervisor name: محمود شاكر مكطوف
General topic: Chemistry
Specific topic: Chemistry
Degree: Master
Language: English
University location: Dhi Qar

تاثير المستخلص الفيولي لدرنات السعد المستدير ومركب التايورين على بعض المعايير الكيموحيوية في اناث الجرذان المصابة باحتشاء عضلة القلب == Effect of Tubers Cyperus rotundus Phenolic Extract and Taurine Compound on Some Biochemical Parameters in Induced Myocardial Infarction in Female Rats

Author name: علياء ماجد مناي الكناني
Supervisor name: محمد عجة عودة | خالد كاطع الفرطوسي
General topic: Chemistry
Specific topic: Analytical Biochemistry
Degree: Master
Language: English
University location: Dhi Qar

استخلاص وعزل وتشخيص المركبات متعددة الفينول اكاسيتين كلايكوسيدات من بذور نبات الحلفا السبخبة ودراسة الفعالية الحيوية للمستخلص كمضاد فطري وبكتيري == Extraction, Isolation and identification of poly phenols compounds (acacetin glycosides) from Cladium Mariscus seeds and study of their biological activity of extract as antifungal and antibacterial agent

Author name: رحاب حاتم بريج الشمري
Supervisor name: حسام محمد كريدي | محمد تركي خثي
General topic: Chemistry
Specific topic: Analytical Biochemistry
Degree: Master
Language: English
University location: Dhi Qar

دراسة سريرية جينية لحالة اكسدة مضادات الاكسدة لدى النساء المصابات بالعقم غير المفسر والنساء المصابات بعقم تكيس المبيض == Clinical and Genetic Study for Oxidation - Antioxidation in Women with Unexplained Infertility and Polycystic Ovary Syndrome

Author name: خنساء عودة حسين الجبوري
Supervisor name: رادد معلك حنون الصالح | ساهر عبد الرضا علي
General topic: Chemistry
Specific topic: Analytical Biochemistry
Degree: Doctorate
Language: English
University location: Dhi Qar

تخليق مشتقات جديدة لمركبات اللاكتام و البريميدين و دراسة فعاليتها كمضادات للاكسدة و مضادات للاورام == Synthesis, Anti - Oxidant And Anti - Tumor Activity Of New Lactam And Pyrimidine Derivatives

Author name: عبد الرحمن يسر خليفة الغزي
Supervisor name: محمود شاكر مكطوف التميمي | حسام محمد كريديا
General topic: Chemistry
Specific topic: Organic Chemistry
Degree: Doctorate
Language: English
University location: Dhi Qar
Abstract: In the end of last century the increasing of cancer disease has been speared in worldwide, has been pushing to investigate more in synthesis a new drug treatment herein, the idea in this thesis three types of heterocyclic compounds | were synthesized : | 1- Synthesis of a series of β-lactams 3(a-h) compounds by using Kinugasa reaction and Staudinger reaction, which β-lactam 3(a-b) compounds (as depicted in scheme below) were synthesized using Kinugasa reaction by reacting alkyne (phenylacetylene and 1-octyne) with the appropriate nitrones 2(a-b) in the presence triethylamine and CuI as catalyst and acetronitrel as solvent at 0˚C. R1 : 4-NHCOCH3 , 3-NO2 R2 : CH3(CH2) , 5 While β-lactam 3(c-h) compounds (as depicted in scheme below) were synthesized using Staudinger reaction by reacting methoxyacetyl chloride with the appropriate imines 2(c-h), in the presence of triethylamine in dry dichloromethane under nitrogen atmosphere at 0˚C.3c : R1= −C6H4Cl , R2= −C6H4− , 3f : R1= −C6H4Me , R2= −C6H4− | 3d : R1= −C6H4Br , R2= −C6H4− , 3g : R1= −C6H4Br , R2= −C6H4− 3e : R1= −C6H4Cl , R2= −C6H4− , 3h : R1= −C4H4N2 , R2= −C6H4− 2- Synthesis of a series of γ-lactams 4(a-h) (as depicted in scheme below) by reaction phenylsuccinic anhydride or 3-(4-chlorophenyl)dihydrofuran-2,5- dione with schiff bases (imines) 2(d,e,g,i,j,k,l,m), by using chloroform as solvent and heated at temperature (55-60˚C) Synthesis of a series of 3,4-Dihydropyrimidin-2(1H)-ones/ thiones 5(a-g) (as | depicted in scheme below) by reaction aldehyde, ethyl acetoacetate and | urea/thiourea under FeCl3.6H2O as catalyst, by using ethanol as solvent and heated at reflux temperature. | H2N NH2 | FeCl3.6H2O | ethanol , reflux | ethyl acetoacetate urea or thiourea aldehyde 5(a-g)The final products were characterized by using the basis of the spectral data : | IR, 1H-NMR, 13C-NMR and Mass. | The antioxidant activity for the synthesized compounds (3g, 4a, 5a) were examined and show highly biological activity response. Moreover, the activity against breast cancer MCF-7 cell line also studied and exhibited highly anti tumor.

تقدير بعض العناصر الثقيلة في نماذج حقيقية باستعمال مركبات ازو - ازوميثين جديدة بواسطة استخلاص نقطة الغيمة == Determination Of Some Heavy Metals In Real Samples Using New Azo - Azomethine Compounds By CPE

Author name: ساجدة صبار عفات
Supervisor name: ساهر عبد الرضا علي الشمخاوي
General topic: Chemistry
Specific topic: Analytical Biochemistry
Degree: Doctorate
Language: English
University location: Dhi Qar
Abstract: Since its inception in 1985, Cloud-point extraction (CPE) methodology has constituted an important theme in the analytical chemistry as promising procedure for the separation and preconcentration for the metal ions and organic compounds from the complex matrices samples. Nowadays, it has been begins to take a large noteworthy position among the other modern separation methods in scientific research and application on a high level due to its simplicity, rapidity, more precise and cheapness beside an environmentally-friendly method, therefore, this research includes three main chapters . | Chapter One includes introduction of azo-azomethine compounds and their complexes and a view of the different extraction techniques, fundamental principles and potential applications of CPE methodology in analytical chemistry. It also involves a concise review on the latest developments of the method and its applications for the determination of cadmium, copper and cobalt by CPE . | Chapter Two consists of an outline of different instrumental techniques , general apparatus and chemicals used in the present work. | The synthesis paths of azo-azomethine compounds (L1 to L4) and primary testing of complex formation between metal ions and reagents, determination of λmax . As well as optimization of the experimental conditions (volume reagent, reaction time, temperature and pH) and determination of dissociation degree and stability constant, stoichiometry of the complex (Continuous variation method -Job method). In addition CoCl2.6H2O and L4 with salts CrCl3.6HO and CdCl2.H2O. The analytical | procedures for CPE which were designed for the determination of analytes including optimization of the Parameters for CPE including (reagent concentration, HCl concentration, incubation time, equilibration temperature, thermodynamic study and Triton X-100 volume) were selected in this study. The present CPE method was applied for determination concentration of metal ions (Cd2+, Cu2+ and Co2+) in real samples by FAAS. | Chapter Three included the new azo-azomethine compounds prepared and their complexes which were characterized by various analytical techniques as a UV-Visible spectroscopy(UV-Vis), Infrared Spectroscopy(FT-IR), Nuclear Magnetic Resonance Spectroscopy(1HNMR), Mass Spectra and Molar Electrical Conductivity for complexes and the results were identical to what is expected scientifically. The spatial shape of the complexes which was prepared is (octahedral) and stoichiometry of the complex. It’s ratio 1 : 1. | In chapter three, there are too highlights on the results and discussion in analytical applications for the separation and preconcentration for the metal with separation and extraction method, such as cloud-point extraction (CPE) as an separation technique that uses a surfactant, instead of organic solvents for phase separation. | In the first part of CPE, Analytical reagent namely 6-((1E)-((2-(((E)-2-hydroxy-3-methoxy-4-((6-methoxybenzo[d]thiazol-2- yl)diaz enyl)benzylidene)amino)benzyl)imino)methyl)-2-methoxy-3- ((6- methoxybenzo[d]thiazol-2-yl)diazenyl)phenol (L1) after synthesis and characterization by using various analytical techniques as a preliminary using various analytical techniques as a preliminary step toward its using | as an organic reagent for the formation of an ion-association complex | with copper ion in acidic medium, apt to interact with surfactant in | solution. The L2 as a reagent for the formation of an ion association | complex with copper in acidic solution and the complex is extracted into | the surfactant Triton X-100 at optimum conditions. The surfactant-rich | phase which contains copper complex is mediated with solvent and the | Cu content measured by FAAS (λmax = 324.75 nm) . The effects of the several variables which affect the CPE efficiency are optimized by OFAT procedure beside other parameters with which one is mentioned with Cu(II) . The thermodynamic study was also investigated to expand the understanding of the mechanism of solvation of Cu(II) in the micelles . | Under the optimized condition established, the enrichment factor of 52.574 was achieved for Cu2+ with the L2 . The concentration range of (0.01-3) μg ml-1 leads to detection limit of 0.017238 μg ml-1. The precision for ((%RSD, n=8) at 0.05μg.ml-1 Cu2+ was of %1.063. The developed method was used for the determination concentration of Cu2+ in real samples. The accuracy was determined by recovery percentage for real samples, it’s found good recoveries (100.380-103.377%) for Cu2+ with L2. | In the third part CPE, Analytical reagent namely6-(((2-(((E)-2- hydroxy-3-methoxy-4-(o-tolyldiazenyl)benzylidene)amino) benzyl)imino)methyl)-2-methoxy-3-(o-tolyldiazenyl)phenol(L3)was synthesised and fully characterized by using various analytical techniques | as a preliminary step toward its using as an organic reagent for the formation of an ion-association complex with cobalt ion in acidic medium and the complex is extracted into the surfactant Triton X-100 at optimum conditions for determination of Co(II) as CoCl4 | 2- ion by using the combined cloud point extraction (CPE) methodology. After phas separation, the surfactant-rich phase was diluted with 1M HNO3 in methanol and cobalt (II) ion determined by FAAS technique at λmax of 240.72 nm. The optimization of complexation and extraction conditions was investigated. Thermodynamic parameters of CPE for solubilization process of the ion-pair complex in Triton X-100 were also considered. | Under the optimized conditions, the preconcentration of a 15ml sample which gave preconcentration and enrichment factors were of 15 and 54.078 respectively. The calibration graph was linear in the range of (0.025-3) μg ml-1 with a limit of detection and quantitation limit 0.011534 and 0.038446 μg ml−1. The relative standard deviation for replicate determinations at 0.05μg ml−1 level was of (0.823%, n=8). The proposed | method was applied for the determination of cobalt in river, tap waters, milk, black tea , tobacco and soil by FAAS. The accuracy was determined by recovery percentage for real samples, it’s found good recoveries (101.108-104.918%) for Co2+ with L3 . The study of the stoichiometry for ion association complexes using the slope analysis technique showed that the ion association complex ratio was 1 : 1 for all extracted complexes

دراسات سريرية وجينية في امصال الدم والسائل المنوي للمدخنين وغير المدخنين المصابين بالعقم غير المفسر في محافظة ذي قار - العراق == Biochemical and Genetic Studies of Sera and Semen for Smokers and Non Smokers with Unexplained Male Infertility in Thi - Qar Province/ Iraq

Author name: وسام ريسان نايف المحسن
Supervisor name: رائد معلك حنون | ساجد حسن كزار
General topic: Chemistry
Specific topic: Clinical Biochemistry
Degree: Doctorate
Language: English
University location: Dhi Qar
Abstract: This study was conducted on infertile subjects attending to the infertility Unit in Al-Hussein Teaching Hospital in Thi-Qar province south of Iraq, during the period from Aug 2016 to May 2017. The aim of study was to determine the roles of the presence of some biochemical parameters (oxidative stress, antioxidants), antisperm antibodies and polymorphism for glutathione peroxidase (GPx1) and glutathione transferase (GTSp1) in men with unexplained infertility. | Ninety men with unexplained male infertility (UMI) aged (91-91) year and fifty healthy fertile men aged (20-25) year were included in this study as a control group, had no systemic diseases and none were taking an oral antioxidant supplement for three months prior to the study. | The patients and control were divided into two groups (smoker and non smoker). Serum and seminal fluids were collected from each of them, seminogram test (semen analysis) was performed for each participant, and all semen samples were collected following (3-5) days of abstinence. After liquefaction, semen volume, sperm concentration, total sperm count, morphology, motility grades were determined using World Health Organization (WHO) standard procedures. | In this study, there is no significant (P>0.05) between age and body mass index (BMI) of unexplained infertile men compared with age of fertile men (control). The groups of the unexplained infertile males with history of infertility of 3-5 years duration were largest groups who attended medical services. The majority of the unexplained infertile men (90%) complained of primary infertility while the minority of them (10%) complained of secondary infertility. The current study revealed that effect smoking on unexplained infertile group was percentage (44.4%) comparison with control fertile group (36 %). | )II( | The results of semen analysis for the fertile (control) and the unexplained infertile men, revealed no significant differences (P>0.05) in semen volume, liquefaction time, and semen pH between the two groups in (smoker and non smoker). A significant decrease (P<0.05) was seen in the sperm concentration, sperm motility, total progressive sperm (progressive sperm motility and non-progressive sperm motility) and normal sperm morphology in the unexplained infertile group compared with the fertile group (control). While a significant increase (P<0.05) was seen in immotile sperm, sperm agglutination, round cells count and leukocytes in the unexplained infertile group compared with the fertile group (control). | The results showed a significant increase (P<0.05) in serum and seminal plasma Malondialdehyde (MDA) in unexplained infertile (smoker and nonsmoker) groups when compared to fertile (smoker and nonsmoker) groups. The antioxidant such as vitamins (C and E) and glutathione were significantly decreased in serum and seminal plasma for unexplained infertile (smoker and nonsmoker) groups when compared to fertile (smoker and nonsmoker) groups. | A significant increase in serum Ceruloplasmin(Cp) levels in unexplained infertile group comparison with fertile (control) group (P<0.05). Significant differences (P<0.05) in seminal plasma fertile (smoker and non smoker) groups but there was no statistical difference in the Ceruloplasmin level of seminal plasma unexplained infertile between two groups (smoker and non smoker) groups and no significant difference between smoker fertile group with unexplained Infertile (smoker and non smoker) groups. | High prevalence of antisperm antibody (ASA) in seminal plasma for unexplained male infertility a percentage (25.5%) compared with infertility (control) a percentage (14%), and significant differences in ASA seminal plasma | )III( | (Smoker and non smoker) in all groups, which indicator that high in Smoker men compared with non smoker . | In this research found association between the glutathione peroxidase (GPx1) polymorphism and unexplained male infertility, and effect oxidation and antioxidant on these. Therefore, might be a major risk factor of unexplained male infertility in the studied groups, suggested a stronger association between smoking consumption and risk of unexplained male infertility. | The frequency of the glutathione transferase (GSTp1) genotype showed almost no difference between the unexplained infertile men and the fertile controls, therefore, in this case-control study, the GSTp1 variant genotype (Ile/ Ile ,Ile/ Val , Val/ Val) was no significant different in every group of unexplained infertile men compare than in the fertile (control group).This indicating no significant association between GSTp1 and sperm parameters.

دراسة وظائف الكبد وصورة الدهون والاجهاد التاكسدي في مصول النساء قبل وبعد استئصال المرارة في محافظة ذي قار / العراق == Study of Liver Function, Lipid Profile and Oxidative Stress in Sera of Women Pre and Post Cholecystectomy in Province of Thi - Qar/ Iraq

Author name: سمى يعقوب يوسف
Supervisor name: رائد معلك الصالح | مهند عبد الرضا الشريفي
General topic: Chemistry
Specific topic: Analytical Biochemistry
Degree: Master
Language: English
University location: Dhi Qar
Abstract: The present study has been designed to evaluate and compare changes in patients pre, post and long periods for cholecystectomy on BMI, liver function (Aspartate Amino Transferase (AST), Alanine Amino Transferase (ALT), Alkaline Phosphatase (ALP), Total Bilirubin (TSB), Total Protein (TP), lipid profile (Total Cholesterol (TC), Triglyceride (TG), High Density Lipoprotein (HDL), Low Density Lipoprotein (LDL), Very Low Density Lipoprotein (VLDL)), oxidative stress (Malondialdehyde (MDA), Nitric Oxide (NO)) and antioxidant state (Albumin (Alb), Ceruloplasmin (CP)). | The study includes (192) subjects : (64) normal subjects (control) and (128) patient’s cholecystectomy, their age range (20-69) years, the patients were divided in to three groups : (64) patients pre and 24 hr post operation cholecystectomy, (64) patients after long periods for cholecystectomy, as well as the patients were divided by age into two groups : a premenopausal group and a postmenopausal group. | The results show that there were a significant decreased in the concentration of serum (AST, ALT, TSB, DB, InB, HDL and Alb) in group pre in comparison with each of post (short and long terms) and control groups (p≤0.05). It was found no significant differences in the concentration of serum (AST, ALT, TSB, DB, InB, HDL and Alb) between each of post (short and long terms) groups (p≤0.05). Also it was found significant differences in the concentration of serum (AST, ALT, TSB, DB, InB, HDL and Alb) between each of post (short and long terms) and control groups (p≤0.05). | -----------------------------INDEX--------------------------------- | XII | While the results showed a significant increase in the concentration of serum (ALP, TP, TC, LDL, NO, MDA and Cp) in all patient groups in comparison with control groups (p≤0.05). It was found no significant differences in the concentration of serum (ALP, TP, TC, LDL, NO, MDA and Cp) between each of post (short and long terms) groups (p≤0.05). Also it was found significant differences in the concentration of serum (ALP, TP, TC, LDL, NO, MDA and Cp) between each of post (short and long terms) and control groups (p≤0.05). | Also the results showed a significant increase in the concentration of serum TG and VLDL in all patient groups in comparison with control groups (p≤0.05). It was found no significant differences in the concentration of serum TG and VLDL between each of post (short and long terms) groups in the group A (p≤0.05). But it was found a significant difference in the concentration of serum TG and VLDL between each of post (short and long terms) in the group B (p≤0.05). Also it was found a significant difference in the concentration of serum TG and VLDL between each of post (short and long terms) groups and control groups (p≤0.05). | The correlation between nitric oxide and each of (ALP, TP, TC, TG, LDL, VLDL, MDA and Cp) in these patient groups were positive. Whereas the correlation between nitric oxide and each of (AST, ALT, TSB, BD, InB, HDL and Alb) in these patient groups were negative. | The above reviewed results lead to conclusion that cholecystectomy causes variant alternations in serum hepatic function and lipid profiles and causes variant effects in serum oxidative stress. Also, age has no effect on each of (ALT, TSB, DB, InB, ALP, TP, TG, VLDL, NO, MDA, Cp and Alb), while age has effect on each of (TC, LDL and HDL). Besides, there are no effect of the period after cholecystectomy on all studied parameters except TG and VLDL.

تحوير فجوة طاقة ثاني اوكسيد التيتانيوم بواسطة تفاعلات الحالة الصلبة مع صوديوم بوروهيدريد والمنيوم ليثيوم هيدريد وتحديد فعالية التحفيز الضوئي == Modifying The Band Gap of Nano Titanium Dioxide By Solid State Reactions With Aluminum Lithium Hydride and Sodium Borohydride and Determining Their Photocatalytic Activity

Author name: سراج علي رحيم
Supervisor name: محسن عريبي الدخيلي | ابراهيم عبود فليفل
General topic: Chemistry
Specific topic: Chemistry
Degree: Master
Language: English
University location: Dhi Qar
Abstract: This study includes preparation of nanoparticles of titanium dioxide using sol-gel method and then, the band gap was modified by solid state reaction with (AlLiH4،NaBH4) reductive compounds. Modification reduced the band gap separating | energy levels between valance band (VB) and conduction band (CB), therefor; facilitating the transfer of excited electrons from (VB) to (CB). Absorption of the energy from incident photons having the same or larger energy than the energy of the | band gap promote the formation of the couple (electron - hole) . The resulting (e--h+) couple acts to produce (OH.) radicals. OH. radicals hav a high capability to destroy organic pollutants that adsorbed on surface of the photocatalytic TiO2. | The optical properties measured using UV-visible spectrophotometer (Absorbance (A), energy band gap (Eg) and absorption coefficient ( α ) . TiO2 and TiO2- solid state reaction showed clear blue shift of the absorption band gap which were (2.8ev, 2.7ev, 2.25ev, 2.0ev) to )TiO2- NaBH4(550 ) ,TiO2-NaBH4 (750 ) , TiO2-AlLiH4 (500 ) and TiO2 -AlLiH4 (750 )) respectively. The structure of prepared TiO2 nanopowders were identified using XRD, particle size distribution varied appreciably in comparison with crystallite size (D) calculated from Sheerer formula which was in a good accordant compared with ASTM results , the particle size and their distribution were characterized using (AFM) . To the surface forms and compositions diameters of nanoparticles)SEM) was implemented . The energy dispersive X-ray (EDX) microanalysis was utilized to investigate the chemical composition of the whole samples. | Photocatalytic reaction was studied by using UV-Vis spectrophotometry. | In photocatalytic reaction the effect of the catalyst on photocatalytic rate of decomposition of methylene blue dye through the use of catalyst TiO2 and TiO2- solid state reaction (TiO2 - NaBH4 (550 ,750 )) and (TiO2 - AlLiH4 (500 ,750 )) . Using constant weight of the catalyst and dye. The most effective weight was found (1*10-4 M). At best weight the influence of many factors on rate of decomposition of dye were studied the impact of change pH varies (4.5, 7.1 and 9.4) found that the highest percentage in the decomposition of the MB was in the acidic media than in neutral and then alkaline. The effect of temperature variation from (20, 30, 40ºC) and found that increased rate of decomposition with increasing the temperature of the MB. Activation energy (Ea) for each reaction was calculated by using the equation of Arrhenius equation between (5.73-11.31) kJ mol-1 . | A series of dark reactions with absorbance measurement by UV-Vis spectrophotometry, within different periods of time with the change of pH and temperature. The results indicate that no degradation of the methylene blue dye although all the factors affecting in photocatalytic present except UV-light .

تحضير تشخيص والخصائص الكهربائية لبعض للليكاندات الجديدة المستندة على 4.3.1 اوكسادايزول، 4.3.1 ثايادايزول و 4.3.1 ترايازول ومعقداتها

Author name: امل حسين نعيثل الزيدي
Supervisor name: محسن عريبي الدخيلي | ابراهيم عبود فليفل
General topic: Chemistry
Specific topic: Inorganic Chemistry
Degree: Doctorate
Language: English
University location: Dhi Qar
Abstract: The thesis include preparation and characterization of some new derivations of, 1,3,4-thiadiazole ,1,2,4-triazole and 1,3,4-oxadiazole as ligands that describe blowThe new complexes were prepared from the reactions of ligands L1, L2, L3, and L4 with transition metal salts (CrCl3.6H2O, FeCl3, CoCl2.6H2O and NiCl2.6H2O). | The elemental analysis (CHN), Infrared (IR) Spectroscopy, Nuclear magnetic resonance spectroscopy (1H NMR), Mass spectra magnetic Susceptibility and flame atomic absorption were used to characterize the structural formula of these ligands and their complexes. | Based on the results of the analytical and spectral measurements of the prepared complexes in this study, and compare them with literature in relation to coordinate sites in ligand. We can suggest the following shapes for the complexes : | 1- With regard to L1 we can conclude that its tridentate with [Cr (III), Fe (III) and Co (III)], In addition to the presence of three of the chloride ions, the geometric shape can be proposed to be octahedral geometry. For nickel (II) Complex the ligand acts as bidentate with two chlorine ions, the geometry is tetrahedral geometry (weak field ligand). | 2-for L2 we can conclude that its tridentate with [Cr (III), Fe (III) and Co (III)], In addition to the presence of three of the chloride ions, the geometric shape can be proposed to be octahedral geometry. For nickel (II) Complex, the ligand acts as bidentate with two chlorine ions, the geometry is square plainer geometry (strong field ligand). | 3 -for L3 we can conclude that it's bidentate with [Cr (III), Fe (III) and Co (III)], In addition to the presence of two of the chloride ions, the geometric shape can be proposed to be tetrahedral geometry. For nickel (II) Complex, the ligand acts as bidentate with two chlorine ions, the geometry is square plainer geometry (strong field ligand). | 4 - For L4 we can conclude that it is bidentate with [Cr (III), Fe (III) and Co (III)], In addition to the presence of two of the chloride ions with two molecule of ligand, the geometric shape can be proposed to be octahedral geometry. For nickel (II) Complex, the ligand acts as bidentate with two chlorine ions, the geometry is square plainer geometry (strong field ligand). | The study also examined the electrical conductivity for both of L1, L3 and their complexes with (Co(III), Fe(III), and Cr(III)) in the presence and absence of iodine. | The study showed that both L1 and L3 are semiconductors and the electrical conductivity of L1 is greater than that of L3. The complexes of these ligands has significantly increased their electrical conductivity and Iron complexes are the most complex electrical conductivity complexes. | As for iodine doping of ligands and their complexes, it was found that iodine increases the conductivity of ligands while decreasing the conductivity of the complexes. However, despite the decrease in the conductivity of the complexes, the conductivity is still higher than those of the free ligands. | A theoretical study for ligands (L1 and L3) and their complexes by Gaussian 09 program and calculate the total energy , HOMO ,LUMO and energy gap for all the studied compounds were found semiconductor
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