Most studies indicated that the values of atmospheric variables have changed from their general rates due to pollution or global warming etc. Hence, the research indicates the changes of direct solar radiation values over a whole century i.e. from 1900 to 2000 depending on registered data for four cities, namely (Mosul - Baghdad - Rutba - Basra. Moreover, attemptsto correlate the direct solar radiation with the temperature values have been recorded over that period. The results showed that there is a decreasing pattern of radiation quantities over time throughout the study period, where the value of direct radiation over the city of Baghdad 5550 w/m2 was recorded in the year 1900, but this ratio decreased clearly to approximately 5400 w/m2 in the year 2000, which is perhaps due to the increase of general pollution rates in the atmosphere. The results also showed that the city of Rutba recorded the highest annual rate of radiation quantities, and Baghdad with Mosul recorded the lowest radiation ratios compared to the rest of the cities, in addition to that there was a large convergence of radiation ratios between them to some extent. The results showed that there is a sharp drop in radiation ratios, specifically in the years1980and 1990. As for the extent of the relationship for solar radiation with temperature levels throughout the study period, it was found that there is an inverse relationship between them, and this confirms that the cause of high temperatures is not because of increased solar radiation, but it may rather due to other reasons such as increased greenhouse gases.
The ligand 4-(2-aminmo-5-nitro-phenylazo)-1,5-dimethyl-2-phenyl-1,2-dihydro-pyrazol-3-one derived from 4-aminoantipyrine and 4-nitroaniline was synthesized. The synthesized ligand was characterized by 1HNMR, FT-IR, UV-Vis spectra and (C.H.N) analysis. Complexes of (YIII and LaIII ) with the ligand were prepared in aqueous ethanol with a 1:2 M:L ratio and at optimum pH. The prepared complexes were characterized by using flame atomic absorption, FT-IR, UV-Vis spectra,(C.H.N) analysis and conductivity measurement. The stoichiometry of complexes was studied by the mole ratio and job methods. A concentration range (1×10-4 - 3×10-4 M) obeyed Beer's law, the complex solutions show high values of molar absorption. On the basis of physicochemical
... Show MoreA series of metal ion complexes of some divalent transition metal ions having the general composition [ML2Cl2]nH2O with 2-(benzo[d]thiazol-2-ylamino)-2- (5-chloro-2-hydroxy phenyl) acetonitrile ligand has been prepared from 5-chloro-2-hydroxy-benzaldehyde and benzo[d]thiazol-2-amine. Existence of cyanide as potassium cyanide in acidic medium was considered, characterized by elemental chemical analysis, conductance of molarity, magnetic susceptibility measurements, FTIR electronic spectral studies and mole ratio method. FTIR indicates the participation of amino and acetonitrile nitrogen which is coordinated with the central metal ion.
The current research aims to study (the effect of strategy of analysis - synthesis duality in the collection of scientific fourth stage students and high-order thinking in Biology material). For evidence the objective of the research, the researcher formulated the following two null hypotheses: 1. There is no significant difference at the statistical level (0.05) between the average of scores of the experimental group students that will study according to the dualism strategy of analysis and structure and the average of scores of the controlled group students that will study according to the normal way in the collection. 2. There is no significant difference at the statistical level (0.05) between the average of scores of the experimenta
... Show Moreيهدف هذا البحث إلى معرفة أثر استخدام دورة التعلم في اكتساب المفاهيم الصرفية واستخلاصها لدى طالبات قسم اللغة العربية بكلية التربية للبنات وقد صيغت فرضيتان مفادهما أن ؛ 1- لا توجد فروق ذات دلالة إحصائية بين متوسط درجات طالبات المجموعة التجريبية اللاتي يدرسن المادة الصرفية في دورة التعلم ومتوسط درجات طالبات المجموعة الضابطة اللاتي يدرسن المادة الصرفية بالطريقة القياسية لاكتساب المفاهيم. 2- لا توجد فروق ذ
... Show Moreوللتحقق من هدف البحث صيغت الفرضية الصفرية الاتية:
- لا توجد فروق ذات دلالة احصائية عند مستوى (0.05 ) بين متوسط درجات طالبات المجموعة التجريبية التي درست وفقا لاستراتيجية (تنال القمر ) ومتوسط درجات طالبات المجموعة الضابطة التي درست على وفق الطريقة الاعتيادية في مقياس مهارات ما وراء المعرفة .
ولأجل التحقق من صحة هذه الفرضية اجرت الباحثة تجربة استغرقت الفصل الدراسي
... Show MoreGod Almighty has prepared for this nation men who made its glory, built its glories, and elevated it to the sublime of its glory, until it was the best nation brought out to people.
Among these notables are those who served the Noble Qur’an, and sacrificed the most precious to reveal its secrets, and to defend the Noble Qur’an against atheists and skeptics, namely Imam (Zain El-Din Muhammad Ibn Abi Bakr Ibn Abd al-Qadir al-Razi, 666 AH), that venerable scholar, and the great sea, who He was known to be: an interpreter, linguistic, jurisprudent, jurisprudence on the Hanafi school of thought. Among his most prominent books are: (Mukhtar Al-Sahah) on language, (Explanation of the Haririya Maqamat) and (Hadiqat al-Ha
... Show Moreيهدف البحث الى قياس مدى التطبيق والتبني للقيادة الملهمة في المنظمات العامة، وقد اشتقت مشكلة البحث النظرية من وجود فجوة معرفية وذلك لقلة الدراسات والبحوث التي تناولت متغير البحث بأبعاده (الرؤية المستقبلية، الثقة بالنفس، تمكين العاملين، ادارة التغيير)، واعتمد البحث المنهج التحليلي عن طريق استعمال الاستبانة في المنظمة التي تم اختيارها وذلك لكونها تعد من المنظمات الاساسية في تقديم الخدمات التعليمية المهمة في
... Show MoreThe audit committees are considered to be one of the most important committees because of the role they play in supervising and monitoring the process of formation of the financial statements and correction of the internal supervising system also strengthening the independency of the internal and external audit. Matters which increases the efficiency and integrity of the financial statements which reflects positively on competence of board of directors and then enhance the position of the company through increasing the trust of the users of the financial statement within the company.
Therefore, this research deals with the evaluation of the performance of the audit committees in Iraqi banks according to the local rules and
... Show MoreThe Abbasid period is one of the most fertile Islamic ages attention to the bookcases have been prominent of each of the caliphs, ministers and dignitaries acquisition of books and stop in the coffers of public books, so that the largest number of students of science to see them. Baghdad's portfolio of scientific status in the late Abbasid times, which was characterized by weakness and division