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jeasiq-1409
مقارنة طرائق تقدير معلمات توزيع كاما ذي المعلمتين في حالة البيانات المفقودة باستخدام المحاكاة
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The estimation of the parameters of Two Parameters Gamma Distribution in case of missing data has been made by using two important methods: the Maximum Likelihood Method and the Shrinkage Method. The former one consists of three methods to solve the MLE non-linear equation by which the estimators of the maximum likelihood can be obtained: Newton-Raphson, Thom and Sinha methods. Thom and Sinha methods are developed by the researcher to be suitable in case of missing data. Furthermore, the Bowman, Shenton and Lam Method, which depends on the Three Parameters Gamma Distribution to get the maximum likelihood estimators, has been developed. A comparison has been made between the methods in the experimental aspect to find the best method through simulation by using the Monte Carlo Method. Several experimentations have been made by using the important statistical measure: Mean Square Error (MSE).

 

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Publication Date
Fri Mar 06 2026
Journal Name
Al–bahith Al–a'alami
The Boundary between Advertisement and Mass Media Overlapping Levels in the Press (The Case of Iraq)
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The advertisement is important in maximizing the resources of journalistic institutions. It helps them to perform their duties and also establishes their independence. However, this type of communication has often overlapped with other types of communication, including media and publicity.

Those in charge of the press bear responsibility in this regard, as some of them harness the advertisement for personal purposes; or detrimental to media content. Many communication authorities have drawn attention to the danger of confusing the concepts and levels of the three activities and have moved towards establishing rules to reduce overlap between them.

The aim of this research is to try to disengage the concept of advertising,

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Publication Date
Tue Dec 15 2020
Journal Name
Al-academy
Simulation As One Of The Tools Of Visual Thinking And Its Effect On Developing Drawing And Design Skills To Produce Innovative Artworks: عائشة عبد الجبار العيسى
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The research emphasizes importance of preliminary drawings in design of any product. Therefore, using of simulation as tools for visual thinking in developing drawing and design skills. So that practice of drawing by hand, considering shape of ideas in first stage of visualizations, and practice of its techniques and continuous training.
Hence, the research problem arose with the role of simulation method for developing preliminary sketches in the sample of students of the Product Design Department at the College of Design and Art, PNU, as it is important tool for visual thinking that helps the designer in designing and producing innovative artistic works.
Therefore, the research axes, a number of findings and recommendations were

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Publication Date
Fri Feb 01 2019
Journal Name
Journal Of Economics And Administrative Sciences
The role of strategic Agility in organizational excellence In Ministry of Construction, Housing, Municipalities and Public Works
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The aim of this research is to identify the role of strategic agility achieving organizational excellence in one of the formations of the Ministry of Municipalities (Dhi Qar Sewage Directorate), as important service organizations that have a key role in serving and developing the society which faced many administrative challenges and issues and as a result of the changes in the environment is continuing and accelerating, so the adoption of modern administrative concepts such as strategic Agility and knowledge of their role in achieving organizational excellence can help them in facing these changes and achieve what they aspire to. In order to achieve research objectives, two main hypotheses have been formulated. The first hypothe

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Publication Date
Mon Feb 28 2022
Journal Name
Journal Of Educational And Psychological Researches
Neurological Perfectionism in Talented Individuals with Disabilities “Case Study”
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The study aims to identify the neurological perfectionism of talented girls with disabilities and do a case study for one of these girls. The sample of the study consisted of (11) female students at the university level, 5 females with disability and (6) normal female-students. The sample also included (19) secondary school female students in Tabuk region, including 10 students with visual disability and (9) normal students. The case study was limited to one case of mentally superior girls (talented) with kinetic disability. The researcher adopted the descriptive methodology (case study), he used neurological perfectionism scale, Salah Mekhemar interview, Stanford interfacial intelligence scale fifth picture, case study form. The re

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Publication Date
Wed Feb 29 2012
Journal Name
Al-khwarizmi Engineering Journal
Effect of Fuel Cetane Number on Multi-Cylinders Direct Injection Diesel Engine Performance and Exhaust Emissions
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Due to the energy crisis and the stringent environmental regulations, diesel engines are offering good hope for automotive vehicles. However, a lot of work is needed to reduce the diesel exhaust emissions and give the way for full utilization of the diesel fuel’s excellent characteristics.

A kind of cetane number improver has been proposed and tested to be used with diesel fuel as                 ameans of reducing exhaust emissions. The addition of (2-ethylhexyl nitrate) was designed to raise fuel cetane number to three stages, 50, 52 and 55 compared to the used conventional diesel fuel whose CN was 48.5. The addition of CN improver results in the decre

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Publication Date
Fri Dec 12 2003
Journal Name
Iraqi Journal Of Laser
Frequency Doubled Nd: YAG Laser for the Treatment of Diabetic Retinopathy
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The present study was conducted with a view to determine whether focal laser therapy result in visual recovery and regression of macular edema in patients with non proliferative diabetic retinopathy and maculopathy ,and whether combined focal and scatter laser therapy in patients with proliferative diabetic retinopathy and maculopathy results in visual recovery ,regression of macular edema and regression of the risk factors. In the present work, a frequency doubled Nd: YAG laser was used for the treatment of diabetic retinopathy. The study evaluates 41 eyes of 33 diabetic patients both with Insulin Dependent Diabetes Mellitus IDDM, (n=16) and Non Insulin Dependent Diabetes Mellitus NIDDM, (n=17) with diabetic retinopathy divided into two

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Publication Date
Fri Oct 30 2020
Journal Name
Journal Of Economics And Administrative Sciences
المهارات الناعمة للموارد البشرية ودورها في الاداء الاستراتيجي بحث ميداني في عينة من مديريات وزارة التربية
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The research aims to analyze the relationships of influence and influence between the soft skills of human resources and strategic performance, as the soft skills of human resources constitute the engine for all duties and operations carried out by the organization, and as a result of sharp changes in the environment, it was necessary for this organization to determine the most important financial and non-financial indicators that are required Approving it in achieving strategic performance to ensure its survival and continuity in work. The research problem was represented by a decrease in cognitive awareness of the importance of employing soft skills for human resources in achieving the indicators of strategic financial and non-

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Publication Date
Thu Jun 29 2017
Journal Name
College Of Islamic Sciences
نظرات ابن الخبّاز النحوية ( 639هـ ) في الغرّة المخفية على ابن معط ( 628 هـ ) في الدرّة الألفيّة
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ملخص البحث

 

بسم الله الرحمن الرحيم

حاول الباحث في هذه الدراسة التذكير بشخصيتين نحويتين، كان يشار لهما بالبنان، إلا أنّ غبار الزمن قد غمرتهما، ولا يكاد يعرفان اليوم بين طلاب العلم، وهما ابن معط ، وابن الخباز.

ـ رأيت أنّ ابن معط في بعض المسائل، التي رده عليها ابن الخباز،  يوافق أبأ الحسن الأخفش، منها مسألة (ال) التعريف ،الداخلة على اسم الفاعل، وكذلك مسألة واو ا

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Publication Date
Fri Mar 06 2026
Journal Name
Journal Of Economics And Administrative Sciences
تأثير القيادة الريادية في أدارة الأزمات التنظيمية بحث تحليلي في عدد من شركات وزارة الموارد المائية
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Publication Date
Thu Oct 01 2020
Journal Name
Iraqi Journal Of Soil Science
تاثير التداخل بين الاجهاد المائي ومستويات النتروجين في كفاءة استعمال المياه وحاصل الحنطة في وسط العراق
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