الملخص:- يهدف البحث الى معرفة اثر استراتيجية المنطقة ذات الاهمية في تحصيل مادة الكيمياء عند طالبات الصف الثاني المتوسط، ولتحقيق هدف البحث تم صياغة الفرضية الصفرية الاتية :- - لا يوجد فرق ذو دلالة احصائية عند مستوى دلالة (0.05 ) بين متوسط درجات طالبات المجموعة التجريبية اللاتي يدرسن وفقا لاستراتيجية المنطقة ذات الاهمية ومتوسط درجات طالبات المجموعة الضابطة اللاتي يدرسن وفق الطريقة الاعتيادية في تحصيل مادة الكيمياء. استعمل الباحث التصميم شبه التجريبي ذي الضبط الجزئي، وتحدد مجتمع البحث بطالبات الصف الثاني المتوسط لمدرسة ثانوية المحمودية للبنات التابعة لمديرية التربية العامة الكرخ الثانية للعام الدراسي ( 2025 – 2026 ). وبلغت عينة البحث ( 64 ) طالبة، بواقع ( 32 ) طالبة للمجموعة التجريبية درسن وفق استراتيجية المنطقة ذات الاهمية و( 32 ) طالبة للمجموعة الضابطة درسن وفق الطريقة الاعتيادية. كوفئت المجموعتان بالمتغيرات ( العمر الزمني، التحصيل الدراسي السابق لمادة العلوم، اختبار المعلومات السابقة) كما اعد الباحث مستلزمات البحث المتمثلة بـ ( تحديد المادة العلمية، صوغ الاغراض السلوكية، اعداد الخطط التدريسية). وتم بناء اداة البحث المتمثلة بناء اختبار تحصيلي تكون من ( 40 ) فقرة، اختيار من متعدد ذي اربع بدائل وتم حساب الثبات ومعامل التمييز والصعوبة وفعالية البدائل له. وبعد الانتهاء من تدريس المادة العلمية والذي استغرق الفصل الدراسي الاول للسنة الدراسية ( 2025 – 2026 ) بواقع حصة دراسية واحدة اسبوعيا لكل مجموعة وبعدها تم تطبيق الاختبار التحصيلي للمجموعتين وتم تفريغ البيانات ومعالجتها احصائيا باعتماد ( برنامج الحقيبة الاجتماعية SPSS )، واظهرت النتائج تفوق المجموعة التجريبية على المجموعة الضابطة في الاختبار التحصيلي. وفي ضوء هذه النتائج تم التوصل الى عدد من الاستنتاجات ووضع بعض التوصيات والمقترحات.
The research aimed at identifying the level of Acute stress disorder and orientation towards supplication among the wives of the martyrs and knowledge of the two levels according to the age groups, academic achievement and profession. Sample of (72) wife of a martyr, and the results of the research indicated that the wives of the martyrs have symptoms of distress disorder and have adherence to the supplication to alleviate that disorder, as well as the results indicated that there are statistical differences in distress disturbance according to the variable of age groups, the profession variable and the variable of enrollment The academic year. As for the measure of the trend towards supplication, there are no statistical dif
... Show MoreThe advancements in Information and Communication Technology (ICT), within the previous decades, has significantly changed people’s transmit or store their information over the Internet or networks. So, one of the main challenges is to keep these information safe against attacks. Many researchers and institutions realized the importance and benefits of cryptography in achieving the efficiency and effectiveness of various aspects of secure communication.This work adopts a novel technique for secure data cryptosystem based on chaos theory. The proposed algorithm generate 2-Dimensional key matrix having the same dimensions of the original image that includes random numbers obtained from the 1-Dimensional logistic chaotic map for given con
... Show Moreالخلاصة
يتضمن البحث تعيين عنصر الزئبق السام بتراكيزنزرة عالية الدقة (نانوغرام) باستخدام منظومة يخار الزئبق البارد لنماذج غذائية (لحوم حمراء ، لحوم بيضاء ) مختلفة ونماذج مائية (ماء النهر، مياه صناعية ، ماء الشرب) وربط المنظومة بتقنية الامتصاص الذري اللهبي.
ان عنصر الزئبق من اشد العناصر سمية وان التراكيز المسموح بها عالميا لايتعدى جزء واحد
The study titled “The role of the social media sites of Iraqi satellite channels in prioritizing the public” is a field study for the public of Dhi Qar.
The emergence of the social networking sites we are currently experiencing has undergone radical and important changes in the role of the mass media in light of the growth and rapid spread of modern technologies Or the so-called new media، which led the media organizations to create satellite channels on the social networks، which led to bypass the traditional lines between the public and media institutions with the public gain the possibility of The purpose of the research is to determine the habits and patterns of public use of the social media sites of the Iraqi satellite cha
The current study aims to identify the feeling of job alienation and organizational commitment among free lecturers in secondary schools, as well as to identify the significance of the differences in the feeling of job alienation according to the gender and the significance of the differences in organizational commitment according to the gender. It also aims to identify the correlation between the feeling of job alienation and organizational commitment. To achieve the objectives of the research, the researcher developed two scales: one consisted of (24) items to measure the vacancy in job alienation and the other consisted of (24) items to measure the organizational commitment. The two tools were applied to a sample of (200) male and fem
... Show MorePituitary adenomas are the anterior pituitary tumors. Patients with an Aryl Hydrocarbon Receptor-Interacting Protein (AIP) mutation (AIP- mut) tend to have more aggressive tumors occurring at a younger age. Single nucleotide polymorphisms (SNPs) in many studies have been related to metabolic comorbidities in the general population. Study aims investigated the role of AIP gene SNPs with susceptibility to acromegaly pituitary- adenoma, with levels of LH, FSH, TSH, Testosterone, IGF1,GH, FT4 , Prolactin hormones and blood sugar levels. The study was conducted on a group of acromegaly patients, including 50 patients) both Genders( with hyperplasia of the ends, and apparently healthy control group. Genotyping of
... Show MoreThis research aims to show the sight at the importance of the private banking sector in Iraq and its role in financing of the investment projects , of the ability of Central Bank's decision to increase the minimum limit of capital for private banks to provide support to the economic activity and the development in Iraq. In addition to illustrate the importance of the capital increase, with a, and taking into notice the most important determinants that can stand in front of these banks in the beginning of the decision implementation, which in turn can lead to the most important proceedings that can contribute in the support of banks to implementation the decision. Also, the research has highlighted the most important ways through wh
... Show MoreThe trading banks in Iraq invest their funds according to regulations imposed by the Central Bank in Iraq in different financial fields like stock exchanges, acquire stocks as assets that could be sold at any time as well as make loans and contributing in corporations establishment also magnitude foreign capital through direct contacts with foreign exchange markets.
We can summarize the problem of this paper as shortage in mathematical models that used in studying and analyzing these investments and according to this problem we used (a constructed mathematical model ) consists of three major indicators: profitability of total investment assets which is divided into three sub-indicators: owners equity risk indicator, debits risk i
... Show MoreThe problem of multi assembly line balancing appears as one of the most prominent and complex type of problem. The research problem of this dissertation is concerned with choosing the suitable method that includes the nature of the processes of the multi assembly type of the sewing line at factory no. (7). The State Company for Leather Manufacturing. The sewing line currently suffers from idle times at work stations which resulted in low production levels that do not meet the production plans. The authors have devised a flexible simulation model which uses the uniform distribution to generate task time for each shoe type produced by the factory. The simulation of the multi assembly line was based on assigni
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