يهدف البحث الحالي إلى التحريّ عن صعوبات مادة الامريكيتين ، من وجهة نظر طالبات قسم الجغرافية في كلية التربية للبنات بجامعة بغداد ، تكوّن مجتمع البحث من طالبات المرحلة الثالثة و البالغ عددهن (230) طالبةً ، و لتحقيق هدف البحث اختارت الباحثة الاستبانة كأداةٍ للدراسة ؛ باعتبارها الأداة الأنسب في عملية جمع البيانات النهائية ، و الأكثر شيوعاً بين البحوث التربوية و النفسية ، فضلاً عن الاطلاع على الدراسات التربوية السابقة ذات العلاقة بموضوع البحث الحالي للإفادة منها في إعداد أداة البحث ، و في ضوء ذلك اختارت الباحثة عيّنةً استطلاعية بصورة عشوائية بلغ عددها (30) طالبة ، شكّلت نسبة (0.13) من المجتمع الأصلي ، و وجهت لهنَّ سؤالاً مفتوحاً بهدف التعرف على آرائهنَّ ، و الحصول على أكبر عدد من الصعوبات التدريسية من وجهة نظرهنَّ ، و بعد جمع البيانات الخاصة باستجابات الطالبات تم تصنيف الصعوبات الى خمسة مجالات رئيسة هي ( المادة العلمية- الطالبات- تدريسي المادة - طرائق و أساليب التدريس- أساليب التقويم) بواقع (6) فقرات لكلِّ مجال ، تم احتساب صدق فقراتها بعرضها على مجموعة من المحكّمين و المتخصصين في العلوم التربوية و النفسية و الجغرافية لتحديد مدى صلاحيتها، كما تم حساب ثباتها بطريقة (إعادة تطبيق الاختبار) على عيّنة استطلاعية بلغت (25) طالبة ، اختيرت بطريقة عشوائية شكّلت نسبة مقدرها (0.12) من المجتمع الأصلي المتبقي البالغ (200) طالبة ، و قد تم اعتماد (معامل ارتباط بيرسون) لحساب معامل الثبات ، و لمعرفة صعوبات تدريس مادة الامريكيتين من وجهة نظر الطالبات ، تم تطبيق أداة البحث على عيّنة البحث والبالغة (50) طالبة ، تم اختيارهن بطريقة عشوائية ، و باستخدام المنهج الوصفي التحليلي، و جمع البيانات و تحليلها إحصائياً باستعمال الوسائل الآتية (معادلة فيشر لحساب الوسط المرجح و الوزن المئوي لتحديد الوزن المئوي الخاص بفقرات مجالات الأداة ) ، و بعد ترتيب مجالات الأداة و فقراتها تنازلياً على وفق المعدل العام للوسط المرجح و النسبة المئوية توصلت النتائج الى : إنّ صعوبات مجال المادة العلمية كانت(أولاً) ، و صعوبات مجال طرائق و أساليب التدريس (ثانياً) ، و صعوبات مجال تدريسي المادة (ثالثاً) ،و صعوبات مجال أساليب التقويم (رابعاً) ، و صعوبات مجال الطالبات (خامساً) ، حيث تراوحت قيم أوساطها المرجحة بين (2.04) و(1.74) ، و أوزانها المئوية بين (68.08) و(58.08) على التوالي.
The target of this study was to synthesize several new Ciprofloxacin drug analogs by providing a nucleophilic substitution procedure that provides new functionality at the carboxylic group location. The analogs were synthesized, designed, and characterized by 1HNMR, and FTIR. The synthetic path began from the reaction of ciprofloxacin drug with morpholine to give compound[B], ciprofloxacin derivative was linked with a variety of primary and secondary amines to give compounds[B1-B9]. The above-mentioned prepared compounds [B3 and B5] were applied to liver enzymes, and the increase in the activity of these enzymes was observed. In addition, a theoretical study was conducted to study the energies and properties of the prepared co
... Show MoreThis study uses an environmentally friendly and low-cost synthesis method to manufacture zinc oxide nanoparticles (ZnO NPs) by using zinc sulfate. Eucalyptus leaf extract is an effective chelating and capping agent for synthesizing ZnO NPs. The structure, morphology, thermal behavior, chemical composition, and optical properties of ZnO nanoparticles were studied utilizing FT-IR, FE-SEM, EDAX, AFM, and Zeta potential analysis. The FE-SEM pictures confirmed that the ZnO NPs with a size range of (22-37) nm were crystalline and spherical. Two methods were used to prepare ZnO NPs. The first method involved calcining the resulting ZnO NPs, while the second method did not. The prepared ZnO NPs were used as adsorbents for removing acid black 210
... Show MoreThe objective of this study is to apply Artificial Neural Network for heat transfer analysis of shell-and-tube heat exchangers widely used in power plants and refineries. Practical data was obtained by using industrial heat exchanger operating in power generation department of Dura refinery. The commonly used Back Propagation (BP) algorithm was used to train and test networks by divided the data to three samples (training, validation and testing data) to give more approach data with actual case. Inputs of the neural network include inlet water temperature, inlet air temperature and mass flow rate of air. Two outputs (exit water temperature to cooling tower and exit air temperature to second stage of air compressor) were taken in ANN.
... Show MoreThis research aims to find out the phonemic, dialect and semantic ailments that were interrogated by the book of the parsing of thirty surahs of the Noble Qur’an by Ibn Khalawiyeh, by examining some phonemic phenomena of Qur’anic expressions and their explanatory relationships that resulted in their occurrence, such as substitution and compression, as the sounds in a word are affected by one another, especially during performance and composition. This influence and influence is the tendency of the human being to the law of ease, facilitation, and the reduction of muscular effort in speech often, all for the purpose of obtaining phonemic harmony for the compound letters; To facilitate pronunciation; And get rid of the muscular effort
... Show MoreThe aim of the research is to measure the relationship and effect of the application of total production maintenance TPM in the operational strategy, as it is considered one of the most important strategies for the process of restoring production losses because of inefficient equipment. Competitive edge in the global market by upgrading the operational strategies of OS in the application of TPM in those institutions that apply both H-OS-oriented and P-OS-oriented strategies where the strategy has been identified as a critical success factor. The aim of this study is to attempt to consider the application of comprehensive productive maintenance in industrial establishments
The research aims at considering the reality of cognitive bias and organizational inertia as determinants of strategic change in a sample of companies listed in Amman Stock Market. To achieve objectives of the research, a model consisting of two independent variables has been designed, namely:
(1) The cognitive bias resulting from (escalating commitment, analogy, previous assumptions, representative generalization, command and control, convergent thinking), and (2) Organizational inertia due to (Icarus discrepancy, power distribution, rooted organizational culture), and a dependent variable, strategic change in (leadership patterns, strategy, the organization per se).
From the model two main hypotheses were derived;
... Show MoreOne of them one of the important books due to its containing valuable information written by the author. Information include the life of the Messenger (Peace be upon him) before and during the mission and what happened to the messenger and his adherents and faithful companions (May Allah be pleased with them all)
Objective: The aim of the study was to estimate the action atorvastatin(20mg/day) on bone biochemical markers dyslipidemic men. Methodology: This study was conducted between May 2015 and November 2015 in Al-Basrah General hospital in Basra, Iraq, to evaluate important role of atorvastatin (20mg/day)(Lipitor® Pfizer Pharma GmbH.Germany) on bone biochemical markers. Thirty men patients who had been admitted for a variety of medical problems included in the study. All the patients had previously been diagnosed with Dyslipidemia by specialist physician in internal medicine and all patients age below 55 yea
Abstract:
Purpose\The researcher paper aims to determine the impact of information technology on the job performance, for Iraq private ban as through the use of technology dimensions of job performance.
The aim of this research: this study aims to discuss the importance of information technology and its role in achieving job performance and its impact on the Iraq banking sector design/ methodology/ approach used entrance design/methodology/approach- pilot, the questionnaire was used to collect data in order to develop a model to measure reliably and correctly to the variables of information technology and job performance, and hypotheses were tested through the use of some statisti
... Show MoreMaterial Requirements Planning System (MRP) is considered as one of the planning and controlling of production and inventory systems which is used to prepare plan of the final production requirements and its parts of subcomponents raw materials and the time at which it was needed for the purpose of preparing orders of production and purchase.
The problem of the present work is represented in the general company of electrical industrialization adoption of traditional methods and personal experience of the process of the products and\or purchase quantity and inventory quantities and limiting the required time for acquiring the required quantities of the materials and parts used in the finish product of the
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