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تاثير الاطوال الموجية للضوء المرئي في بعض الفعاليات الفسلجية للسيانوبكتريا المثبتة للنتروجين الجوي

Author name: علي مؤيد سلطان وهيب
Supervisor name: حميد سلمان خميس
General topic: Biology
Specific topic: Environment
Degree: Master
University: Tikrit University - College Of Education For Girls - Department Of Biology
University location: Salahaddin

دراسة بكتريولوجية كيمياوية وفيزياوية لمياه الشرب المعدنية المتداولة في الاسواق المحلية لمدينة تكريت == Bacteriological Chemical And Physical Study For Drinking Mineral Bottled Water Circulating In Local Market In Tikrit City

Author name: اسراء حمود عبد الدوري
Supervisor name: حميد سلمان خميس المهداوي | ياسين حسين عويد
General topic: Biology
Specific topic: Environment
Degree: Master
University: Tikrit University - College Of Education For Girls - Department Of Biology
Language: Arabic
University location: Salahaddin
First pages:
Abstract: تضمنت الدراسة الحالية جمع عينات شهرية من اصناف المياه المعدنية المعباة المتداولة في الاسواق المحلية في مدينة تكريت ابتداء من شهر تشرين الاول عام 2010 م ولغاية شهر حزيران عام 2011 م وتم تقييم جودة عشرة اصناف من المياه المعباة بالاضافة الى ماء الصنبور ومقار | The current study included collected monthly samples of mineral water circulating in the local markets in the city of Tikrit from the month of October in 2010 until the month of June in 2011. It was evaluated the quality of ten varieties of bottled water and comparing the results to the standard specifications for Iraqi drinking water and international standards for the World Health Organization.Evaluation included a study of physical, chemical and microbiological factors : turbidity, total dissolved solid, total suspended solid, electrical conductivity, pH, dissolved oxygen, biological oxygen demand, total alkalinity, acidity, total hardness, calcium, sodium, potassium, salinity, chloride, phosphate, nitrate, sulphate, heavy metals, total number of bacteria and total coliforms.The level of quality parameters of these classes were in compliance with the different standards except for pH in one class Pearl and phosphate in one class Rovian.Comparing bottled water to tap water found that the concentrations of turbidity, total dissolved solid, total suspended solid, electrical conductivity, salinity, dissolved oxygen, total hardness, acidity, nitrate, iron, manganese and total number of bacteria in tap water higher than the concentrations in bottled water but didn’t exceed the upper limit that allowed by the local and international specifications for drinking water.Measurements also revealed that the values of most of the criteria listed on the packaging do not reflect the actual content of these water bottles with the exception of one class Kameran most of the packaging in this class has matched the actual content of the water container.The results also showed the absence of coliform bacteria in any of the varieties of bottled water and tap water as well as the significance of the absence of bacterial contamination in it.

عزل وتشخيص بعض انواع البكتريا من الترب والمياه الصناعية الملوثة بالنفط ومشتقاته في مصفى بيجي وقابليتها على تحليل بعض المركبات الهيدروكاربونية == Isolation and Identification of some bacterial species from soils and Industrial water polluted with petroleum and it's derivatives in Bagei refinery and their ability to dissociats some Hydrocarbons

Author name: شيماء علي حسن سليمان
Supervisor name: حميد سلمان خميس | ياسين حسين عويد
General topic: Biology
Specific topic: Environment
Degree: Master
University: Tikrit University - College Of Education For Girls - Department Of Biology
Language: Arabic
University location: Salahaddin
First pages:

عزل وتشخيص السيانوبكتريا المثبتة للنتروجين الجوي في مدينة تكريت وضواحيها وتاثير بعض العوامل البيئية == Isolation and Identification of Nitrogen – Fixing Cyanobacteria in Tikrit City and It's Surrounding area and the Effect of the Environmental Factors

Author name: سعادت مصطفى محمد الهرمزي
Supervisor name: حـمـيـــد سـلـمان خــمـيــــس
General topic: Biology
Specific topic: Environment
Degree: Master
University: Tikrit University - College Of Education For Girls - Department Of Biology
Language: Arabic
University location: Salahaddin
First pages: