In this work the strain energy of tetrahedrane and its nitrogen substituted molecules were calculated by isodesmic reaction method according to DFT quantum chemical fashion, the used basis set was 6-31G/B3-LYP, in addition all structures were optimized by RM1 semi-empirical method. From the obtained data we estimate an empirical equation connect between strain energy of the molecule with charge functions represented by dipole moment of the molecule plus accumulated charge density involved within the tetrahedron frame plus the number of nitrogen atoms. The results indicate the charge spreading factors by polarization and processes are the most important factors in decreasing the strain energy.

The goal of this research is to identify superstition that university students have in Libya and Iraq, with a comparison between the two. Furthermore, this research aims to identify significant differences in superstition among university students according to gender, study grade and study course.

The researcher explored the historical development of superstition and some explanatory theories of this human phenomenon. He also presented a number of previous foreign and Arab researches. He also designed a questionnaire on common superstitious ideas among university students in both Iraq and Libya.

This research found that in 7 sections, university students in Iraq got a high weigh

يكون الفرد الذي يعاني من العجز النفسي عاجزاً عن التكيف مَعَ الضغوط النفسية الناتجة عن الظروف الشخصية والاجتماعية مما يؤدي إِلَى تعرض الفرد إِلَى مشاكل في إنجازه الدراسي وتعرضه لمشاكل في مجال علاقاته الاجتماعية بحيث يكون الفرد منزعجاً وناضباً في علاقاته مَعَ الناس وردود فعل الآخرين نحوه تتسم بالنفور والكراهية والغضب والحقد غير ذلك من المشاعر السلبية ، لذا استهدف البحث الحالي ما يأتي :

The aim of this research is to measure the effect of Adey- Shire model in the achievement and critical thinking of first intermediate female students in mathematics. The researcher adopted the experimental method with a post-test, the research of sample consists of (60) female students, divided into two groups with (30) students in the experimental group, that studied with Adey- Shire model, and (30) students in the control group who studied in the usual way. The two groups are equivalent in many variables. The researcher makes two tests of multiple choices, the first one is an achievement test consists (30) items and another test was for a critical thinking test with (25) items. The statistical analysis make to both tests is made with s

هدف البحث الى تقويم محتوى كتاب الحاسوب للصف الاول المتوسط في العراق وفقاً للتنور التقني وتقديم مقترحات لتطويره, واعتمدت الباحثتين المنهج الوصفي التحليلي. تكون مجتمع البحث وعينته من محتوى كتاب الحاسوب المقرر لطلبة الصف الاول المتوسط, وتم بناء أداة البحث بصيغتها الاولية متمثلة بقائمة لمحاور التنور التقني الخمسة (طبيعة التقنية، والتقنية والمجتمع، والتصميم "جانب مهاري"، وقدرات لدعم العالم التقني, والعالم المُ

هدفت الدراسة الى تحليل محتوى كتاب الرياضيات للصف الاول متوسط على وفق مكونات المعرفة الرياضية (المفاهيم الرياضية , التعميمات الرياضية, المهارات الرياضية والمسائل الرياضية )

وتفرعت منه الاسئلة الاتية :

مانسبة المفاهيم الرياضية المتضمنة في كل فصل من فصول كتاب الرياضيات للصف الاول متوسط  وللكتاب ككل ؟

مانسبة المهارات الرياضية المتضمنة في كل فص

In this paper, fire resistance and residual capacity tests were carried out on encased pultruded glass fiber-reinforced polymer (GFRP) I-beams with high-strength concrete beams. The specimens were loaded concurrently under 25% of the ultimate load and fire exposure (an increase in temperature of 700 °C) for 70 min. Subsequently, the fire-damaged specimens were allowed to cool and then were loaded statically until failure to explore the residual behaviors. The effects of using shear connectors and web stiffeners on the residual behavior were investigated. Finite Element (FE) analysis was developed to simulate the encased pultruded GFRP I-beams under the effect of fire loading. The thermal analyses were performed using the general-pu

Captopril is an angiotensin converting enzyme inhibitor (ACEI) used to treat hypertension,
congestive heart failure, and myocardial infraction.
The only dosage form available for captopril is the plain tablet in strength of 12.5,25,50 and 100mg
tablet.
This investigation is concerned with factors affecting the formulation of captopril as a plain
tablet dosage form of 50mg. Many trials were made to prepare satisfactory tablets for the drug by
using wet – granulation methods with various additives. It was found that poly vinyl pyrrolidone
(P.V.P.) as binder gave the most satisfactory tablets. At the same time a shorter disintegrantion time
and slower dissolution rate were obtained with the addition of starch

Extracorporeal shock wave lithotripsy (ESWL) is considered a standard treatment for nephrolith or kidney stones measuring less than 20 mm. Anatomical, machine-related, and stone factors play pivotal roles in treatment outcomes, the latter being the leading role. This paper examined the relationship between stone density on native CT scans and ESWL treatment to remove renal stones concerning several treatments. One hundred and twenty patients (64 males and 56 females) were enrolled and completed the study from April 2019 to September 2020. Inclusion criteria were a single renal pelvis stone of 5–20 mm to be treated for the first time in adult patients with no urinary or musculoskeletal anatomical abnormalities. We assessed patients