Aicha Fassih , Manal Miloudi

كلية علوم الطبيعة والحياة-جامعة عبد الحميد بن باديس مستغانم · الجزائر

حسين أحمد, خضر محمد خضر عودة

كلية الدراسات العليا-جامعة النجاح الوطنية · فلسطين

This study aims to measure the trends and levels of fertility and demographic and socio-economic factors that affect it in the district of Qulqilia.To achieve this purpose, the study depends on a specific and special questionnaire which is distributed in the district in January 1997. The entitled area is classified into three patterns according to the number of population (city, big villages, and small villages).Astrified random sample of 5% of the household in the district was chosen. The study includes six chapters as the following:The first one illustrates the geographical features of the district; its Importance, objectives and the motivations and justifications behind this study that clarifies its problems and curriculums. Chapter two looks over the previous studies which are done on the same subject in Palestine, other Arab countries, and foreign ones. Chapter three studies the structure of population. It states that 46.5%of the people are under the age of 15.The rate of economical dependency is 3.75 while the unemployment is 12% the monthly average income is336.6 JD. Chapter four studies the levels of fertility and factors affecting them .It shows that the crude birth rate is 40.5 per thousand. It agrees with the nativity in the West Bank according to the P.C.B.S which is about 41.2 per thousand in 1994 . The total fertility rate in Qulqilia district is 7.27 .It is determined by the patterns of residence where it goes up in small villages due to the differences in culture and social standards. In the West Bank and Gaza Strip, the total fertility rate is 6.24 in 1996.The duration of marriage, current age, and years of education are the major factors that influence the number of children ever born whereas the characteristics related to the husband are less effect than those of a wife.Chapter five deals with the trends of fertility and factors that affect then in Qulqilia district. It shows that the percent of women who are in the childbearing age and wish to have more children is 50.4%. In contrast to the figures Statistics of the Palestinian Center ,shows that 48.4% of those do not want to have more children in addition to their children in the West Bank in 1996. A study of factors that affect the number of children wished to be born states that the duration of marriage, years of education for a mother, the number of children ever born and the current age of the mother are the most important factors affected the number of children wish to have by the woman. Chapter six looks over the results and recommendation of the study.

Ahmed Kebir, Salah Eddine Kherbab

كلية علوم الطبيعة والحياة-جامعة عبد الحميد بن باديس مستغانم · الجزائر

Equine reproduction requires a great deal of rigor in the management of the mare in order to fulfill theobjective of obtaining a foal per year and at the earliest in the year. It is therefore essential to control amaximum of factors influencing fertility.The veterinarian must be able to perform gynecological monitoring at each key moment during thereproductive life of the mare in order to detect the conditions that can alter reproductive performance and treatquickly, to know the optimal time to inseminate the mare, then to diagnose pregnancy and to monitor itsprogress.The veterinarian must also be able to advise the breeder as much as possible on the management ofthe mare with regard to its diet and environment, to optimize the mare's fertility, to bring it in good health forreproduction and to maintain its gestation.

Ariouat Youcef, Nour Eddine Anwar Bahache

كلية الرياضيات والاعلام الآلي-جامعة محمد بوضياف - المسيلة · الجزائر

Analytical queries defined on a star schema modeled data warehouse are very complex and timeconsuming due to the join operations between the fact and dimension tables. Several techniques to reducethe cost and response time has been emerged in the past decades such as indexes. Binary Join Indexes(BJI) are one of the well-known indexes and its selection is considered as a problem itself (noted IndexSelection Problem: ISP). this problem is crucial in data warehousing physical design. To solve thisproblem two approaches exists statistics-based approach and metaheuristic-based approach. In thisdissertation we propose a new metaheuristic-basedapproach. This approach is based on the improvedversion of the artificial fish swarm algorithm for solving the binary join index selection problem. Thisapproach aims to select the optimal set of BJI based on a mathematical cost model. This method wastested against a datamining constraint-based method and proved its effectiveness and even its superiorityto the datamining constraint method.

احسين صوالح, كهينة بوراس, نصيرة مناع

كلية التكنولوجيا-جامعة عبد الرحمان ميرة - بجاية · الجزائر

Notre étude porte sur la dégradation du bleu de méthylène en solution aqueuse par laphoto catalyse sur différents matériaux à savoir : les oxyde mixte type perovskite et l’oxydede zinc. Le principe de la photo catalyse hétérogène est basé sur l’interaction des photons avecun semi-conducteur qui est dans notre cas des des se-mi conducture type pérovskite et l’oxydede zinc.Les photo catalyseurs ont été caractérisées par : DRX et IRTF : Les résultats obtenusmontrent que la dégradation est totale à la photo catalyse qui se montre très efficace surtoutaux faibles concentrations.

إيمان إسماعيل النحائسي, علي احميدة الككلي

كلية العلوم-جامعة طرابلس · ليبيا

In this thesis, we give an algebraic proof of the Kalton represtation theorems. In chapter one, we give some basic standd definitions and some results we need later. In chapter two we discuss the concept of Boolean algebra, and bounded line operators betwe two Boolean algebras. In chapter three, we discuss the concepts of measure, signed measure, measurable sets, measurable functions, integration with respect to signed measure; later in this chapter, we define .In the last chapter (4) we give the main result of our thesis which is the proof of KALTON represtation theorems

منتهى جاسم السعيدي

الجامعة التكنولوجية · العراق

Georges M. Nemer, Nagham Nafiz Ahmad Hendi

كلية العلوم الصحية والحيوية-جامعة حمد بن خليفة · قطر

Epidemiological studies have revealed that Middle Eastern countries have the highest incidence of Vitamin D deficiency with severe complications. However, the impact of Vitamin D polymorphisms and the performance of polygenic models have been studied primarily in European populations, with little knowledge in the Middle Eastern. A nonsense variant in the uncharacterized SDR42E1 gene has been identified recently as a potential contributor to Vitamin D deficiency through genomic research. Methods I conducted the first genome-wide association study to identify genetic determinants of Vitamin D levels in Middle Eastern populations using whole-genome and whole-exome sequencing approaches in 6,047 and 199 discovery subjects from Qatar and Lebanon, respectively. I also functionally and structurally characterized the novel SDR42E1 by generating stable CRISPR/Cas9-mediated genome editing in the selected HaCat and HCT116 human cell models. Results I discovered a novel variant, rs2298850 (P-value = 1.71 × 10-08, effect size (Beta) = -0.1285), in a known locus of the group-specific component gene (GC) in the Qatari population. I confirmed the association of Vitamin D to several variants, including rs11723621 (P-value = 1.93 × 10-08, Beta = -0.12574) and rs4588 (P-value = 8.06 × 10-08, Beta = -0.1188) in the GC. I further identified a novel suggestive variant, rs141064014 on chromosome 7 in the MGAM gene (P-value of 4.40 × 10−06) and rs7036592, on chromosome 9 in the PHF2 gene (P-value of 8.43 × 10−06). A GWAS meta-analysis combining results from the previous European data and Qatari cohort identified novel variants in known loci, including rs67609747 and rs1945603 on chromosome 11. Many variants were replicated through combining elderly Lebanese data and the largest European GWAS from the UK Biobank, including rs2725405 on chromosome 17 in the SLC38A10 gene (P-value of 3.73 x 10-08). Finally, a low predictive performance of European ancestry-derived polygenic scores was observed when applied to the Middle East individuals. I determined a cytoplasmic localization of SDR42E1 protein in the cutaneous HaCat and intestinal HCT116 cells. Significant gene associations between the SDR42E1 and genes involved in Vitamin D pathways were identified, including alkaline phosphatase, placental type (ALPP), ATP-binding cassette C1 (ABCC1), solute carrier 7A5 (SLC7A5). Gene regulators of cellular senescence and cancer prognosis were found to be significantly affected after the knockout and knockout of SDR42E1 in HaCat and HCT116 cells. Significant alterations in Vitamin D metabolites, including 24R-24,25-Dihydroxyvitamin D, and lipid membrane components, including phosphatidylcholine, were observed in the absence of SDR42E1 from the HaCat cells. Cellular viability also decreased significantly after the knockout of SDR42E1 in the HCT116 cells. Conclusion These results emphasize the diversity in the genetic architecture and its impact on preventive and precision medicine across different populations. My findings offer novel perspectives on the physiological mechanisms and genetic factors contributing to the variation of Vitamin D levels in Middle Eastern populations. The comprehensive understanding of the molecular mechanisms underlying Vitamin D metabolism and associated health conditions garnered from my study of the novel SDR42E1, and its variant constitutes a foundation for future research and translational applications in clinical precision medicine.

إبراهيم عبدالمجيد إبراهيم صالح, عثمان النور سليمان فضل الله

كلية علوم الحاسوب وتقانة المعلومات-جامعة النيلين · السودان

يعتبر التعليم الالكتروني من الوسائل الحديثة التي وفرت امكانية نقل المعارف ونشرها كما مكنت من اتاحة شروحات متعددة للمقررات والمناهج لنفس التخصص ولنفس الموضوع ، وادت وسائل التعليم الالكتروني الى زيادة معدلات التحصيل العلمي عبر المناقشات ومشاركة نتائج التجارب العلمية ، ومن ما لا شك فيه ان هذه الوسائل قد ساعدت ذوي الاحتياجات الخاصة عموماً والمكفوفون خصوصاً على التعلم بطريقة مستقلة وفردية مع مراعاة حالتهم الجسدية عبر تقديم هذه الوسائل بصور مختلفة تتناسب مع حالة كل طالب منهم.ومن المؤكد ان فئة الطلاب المكفوفين تحتاج للاستفادة من الطفرات التي حدثت في مجال التكنولوجيا، حيث إن الطلاب المكفوفون لهم ظروف صحية خاصة تجعلهم غير قادرين على اداء امتحاناتهم بمفردهم وبحاجة دوماً لشخص مرافق للإجابة بالانابة عنهم ، كما ان الامتحان بطريقة برايل تعتبر عملية مكلفة من حيث المال وتتطلب معدات خاصة وتجهيزات وبعد ذلك تتطلب الامتحانات الى تصحيح ورصد للدرجات مما يعني المزيد من الزمن والجهد والاموال ويهدف الباحث الى تمكين الطلاب المكفوفين من اداء الامتحانات بشكل مستقل وبالاعتماد على انفسهم مع تقليل تكلفة وجهد عمل الامتحانات وتصحيحها ورصد الدرجات واستخراج النتائج مما يعني المزيد من الوقت والجهد والمال.ويهدف الباحث الى تطوير نظام امتحانات الكتروني للمكفوفين يمكنهم من اداء امتحاناتهم بشكل مستقل بمعني انه ليست هناك حاجة للاعتماد على أشخاص آخرين كما كان في الامتحانات التي تقام حالياً. حيث يسمح النظام المقترح للأشخاص المكفوفين بإجراء الامتحانات عبر الحاسوب والاستفادة من تقنيات الذكاء الاصطناعي في تقديم الأسئلة للطالب في شكل صوتي من خلال تحويل نص السؤال وخيارات الاجابات الي جمل صوتية باستخدام تركيب الكلام (تحويل النص إلى كلام) ، ثم يقوم الطالب بإختيار الاجابة ومن ثم يقوم النظام بتخزين اجابات الطالب في قاعدة البيانات و مطابقة الاجابات التي اختارها الطالب مع الاجابات الصحيحة ومن ثم رصد الدرجات واستخراج النتيجة الياً.اعتمد الباحث على منهجية تحليل وتصميم النظم الكائني في تحليل وتصميم النظام كما اعتمد على الملاحظة والمعاينة والمقابلات الشخصية في جمع البيانات ومعرفة متطلبات النظام. وقد تم بناء النظام باستخدام تقنيات الويب (PHP-MySQL –Java script –TTS text to speech API ).طور الباحث نظام نظام امتحانات الكتروني يمكن المكفوفين من اداء الامتحانات بصورة فردية ويقلل الكثير من الجهد والوقت والمال المطلوب لإعداد الامتحانات، ويوصي الباحث بتطوير النظام ليعمل كتطبيق للهواتف الذكية بمختلف منصاتها وأن تكون واجهات المستخدم داعمة للغة العربية وتتوفر بها خيارات لتخطي الاسئلة والعودة لاجابتها لاحقاً وتعديل الاجابة وأن تتنوع أشكال أسئلة الامتحان .

samir makdisi, Silva Toros Kayayan

كلية العلوم والأداب-الجامعة الأمريكية في بيروت · لبنان