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مقارنة المقدرات اللا معلمية لتقدير دوال الكثافة الاحتمالية == Comparing Nonparametric Estimators For Probability Density Estimation

Author name: مناف يوسف حمود

Supervisor name: ظافر حسين رشيد النجار

General topic: Administration and Economics

Specific topic: Statistics

Degree: Doctorate

University: University of Baghdad - Faculty Of Administration And Economics - Department Of Statistics

Language: Arabic

University location: Baghdad

First pages:

Abstract: ان المسالة المهمة والرئيسة في التطبيقات الاحصائية تتمثل بمعرفة التوزيع الخاص بالمجتمع المطلوب دراسته ومعرفة خصائص ذلك المجتمع كي يتم تمثيل المجتمع تمثيلا سليما من خلال استعمال الاساليب الاحصائية الشائعة.في بعض مسائل الاستدلال الاحصائي المدروسة يتم افتراض | In some problems of statistical inference considered, we assumed that the distribution of random variable being sampled is known except, perhaps for some parameters.In practice, however, the functional form of the distribution is seldom, if ever, known. It is therefore desirable to devise some procedures that are free of or depending on few information or assumption concerning distribution.In this dissertation we demonstrate and study some procedures that are commonly referred to as nonparametric or distribution - free and also semiparametric methods.The term “Distribution - free” refers to to the fact that no assumption are made about the underlying distribution except that the distribution function is absolutely continuous.The term “Nonparametric” refers to the fact that there are no parameters involved in the traditional sense of term parameter used thus far.The term “Semiparametric” refers to combine the parametric term with nonparametric term, which there is few information or assumption about the distribution function.In chapter one we demonstrate an introduction to the problem, the main of the study and the historical review.In chapter two we demonstrate several nonparametric and semiparametric estimators for probability density function and these estimators are “fixed kernel which use fixed bandwidth or smoothing parameter, variable kernel which use variable bandwidth for each observation, semiparametric estimator which combine between two estimators {parametric by using of MLE and nonparametric estimator by using of fixed kernel}”.Beside these estimators we suggest four estimators like semiparametric estimator but the first suggestion combine MLE & variable kernel, the second suggestion combine two nonparametric estimators, the third suggestion combine robust estimator (for the mean & variance) with fixed kernel estimator, Finally we suggest estimator that combine robust estimator with variable kernel.Beside to above we demonstrate several estimators for smoothing parameter or bandwidth one of these estimators suggested from the author.Then we make a comparison between the parametric, nonparametric and semiparametric estimators with respect to bandwidth estimators by using simulation experiments, depending on different distributions (Normal, Lognormal and bimodal), different sample sizes and variances.We find that the best estimator for the density function is the first semiparametric estimator when we are using the 1st & 2nd distributions (Normal & Lognormal) except in few cases where we find the 1st suggested estimator is the best. And when we are using the 3rd distribution (Bimodal) we find that, the 2nd suggested estimator (Nonparametric estimator) are the best except in few cases where the other suggested estimators beside to 1st semiparametric estimator are the best.Also we find that the (BCV) estimator is the best estimator for the smoothing parameter when we are using the 1st distribution (Normal), except in few cases where the OS estimator is the best for h.For the 2nd distribution (Lognormal) we find the (LSCV) estimator is the best estimator for the smoothing parameter.Finally, For the 3rd distribution (Bimodal), We find that the (BCV) estimator is the best estimator for h except when the sample size equal to 100 (n=100), where the (DPI) estimator is the best.

تحليل دالة التكاليف لعدد من المصارف التجارية العراقية == Analysis of Costs Function For Many Iraqi Commercial Banks

Author name: ممدوح عطا الله فيحان

Supervisor name: محمد صالح سلمان الكبيسي

General topic: Administration and Economics

Specific topic: Economy

Degree: Doctorate

University: University of Baghdad - Faculty Of Administration And Economics

Language: Arabic

University location: Baghdad

First pages:

تطبيق بعض ادوات الانتاج الرشيق في معمل رقم (7) في الشركة العامة للصناعات الجلدية : دراسة حالة == Applying Some Lean Production Tools In Factory 7 At The State Company For Leather Industries A Case Study

Author name: معتصم علي لفتة الاسدي

Supervisor name: صباح مجيد سعيد النجار

General topic: Administration and Economics

Specific topic: Business Administration

Degree: Master

University: University of Baghdad - Faculty Of Administration And Economics - Department Of Business Administration

Language: Arabic

University location: Baghdad

First pages:

Abstract: سعت هذه الدراسة الى تحليل واقع عملية الانتاج في معمل /7 ضمن معامل الشركة العامة للصناعات الجلدية ومن ثم تحديد واستخدام مجموعة من ادوات الانتاج الرشيق الملائمة في ذلك المعمل.ومن خلال المعايشة الميدانية والمشاهدات والمقابلات التي اجراها الباحث مع المسؤولي | This study tried to analyze the reality of production process of plant / 7 within the plants of the general Company of Leather Industries, and then determining and utilizing the suitable variety tools of lean production in that plant.And through field living, observation and interviews conducted by the researcher with the people in charge and through the reviewing and analyzing the data it was determined group of the areas which can be improved , by using the tools lean production for the goal of eliminating the non - value - added activities to customer and improve some areas for achieve plentifulnesses in the area, inventory, transportation and lead time and enabling the plant(7) for producing modern models that go along with the style and give it the power to compete with the imported products.The researcher was able to determine the major causes for these problems through the study and analysis that were conflicted to the reality of plant / 7, he also determined features and the available possibilities in the plant , and then determining and utilizing variety of applicable lean production tools to solve these problems or even restrict them. the tools that the researcher utilized included : the value stream mapping , the production leveling, means of quality at the source and visual control, taking procedures eliminating or reduce the number or the times of activities that add no value, in addition to presenting recommendations within the framework of the approach lean production, which represented in execution of elements of Total Productive maintenance , long - range relationships with suppliers, and more others.The most prominent finding represented large in attaining plentifulnesses in costs and labor time , reducing the lead time as much as ( 1.5) day and draw value stream mapping, reducing the quantity of inventory (work in process ) in the departments of sewing and pulling , in addition to the at tamed material and non - material benefits.The conclusions of the study proved that applying these tools and taking the recommendations in consideration within the framework of the approach of lean production have their high capability in reducing the costs and the quantities of stocks and the same time increasing the flexibility, quality and the pace of response and to achieve customer satisfaction, as well as employees and thus set the plant on the path of the enhancing competitive advantages in (cost, quality, delivery, variety) therefore, the researcher recommends utilizing these tools and making use of the recommendations proposed

Author name: مصطفى عبد الحسن فرحان الشاعلي

Supervisor name: مؤيد صالح عبد القادر الشيخ

General topic: Administration and Economics

Specific topic: Economy

Degree: Master

University: University of Baghdad - Faculty Of Administration And Economics

Language: Arabic

University location: Baghdad

First pages:

تطور بدائل الطاقة وانعكاسه على مستقبل الطلب العالمي على النفط مع اشارة خاصة الى العراق للمدة 2003 - 2035

Author name: مصطفى عبد الحسن فرحان الشاعلي

Supervisor name: حالوب كاظم معلة

General topic: Administration and Economics

Specific topic: Economy

Degree: Doctorate

University: University of Baghdad - Faculty Of Administration And Economics

Language: Arabic

University location: Baghdad

First pages:

Abstract: The research is an attempt modest to estimate the function of global demand for crude oil, and taken it as an indicator to be used Iraqi decision maker to determine the strategic choices in the oil production , exports , trends of its markets, in order to reach the diversification of income and make the energy sector (oil & gas)as a major sector for this mission. energy sector can a be a primary source of energy because of relative , competitive merits, as well as the revision and the evaluation of the positive and negative aspects of integrated national energy strategy (oil & gas) and rounds of oil licensing in the Iraqi economy.The research is divided in to three chapter. The first chapter deals with energy fundamentals and economics of supply and demand of renewable and non - renewable energies. this chapter is, in turn, broken in to three sections explaining the foundations of energies, energy fundamentals, classifications, constraints, features and uses, the second section addresses the supply of non - renewable and renewable energy resources economies & their types, and the third analyzes the factors affecting demand for non - renewable resources and analytical comparative models and forecasting for demand.The second chapter is entitled، ،measurement and analysis of the global oil demand for the period 1996 - 2013’’, and includes three sections. the first section focuses on the historical development of the global demand for crude oil; the second explains the theoretical framework for econometric used model, and the third section titled، ،Results of measurement and Its analysis’’.The third chapter is devoted to the Iraqi economy and oil policy, and includes four sections, the first section focuses on the review of the historical development of the Iraqi economy, the second section explains investment, production, consumption and the export of Iraqi oil, The third section focuses on the national strategy and the policy of energy, and the fourth highlights the four rounds of licensing through the presentation and evaluation.The research ends up with conclusions and set of recommendations.

تحليل العوامل المؤثرة في سلوك المستهلك ازاء ممارسات الخداع التسويقي : بحث تحليلي في عينة من اسواق بغداد التجارية == Analysis of The Influencing Factors On The Consumer Behavior Over The Deception Practices of Marketing Analytical Research In A Sample of Baghdad Commercial Markets

Author name: مصطفى رعد صالح الحمداني

Supervisor name: احمد نزار جميل

General topic: Administration and Economics

Specific topic: Business Administration

Degree: Master

University: University of Baghdad - Faculty Of Administration And Economics - Department Of Business Administration

Language: Arabic

University location: Baghdad

First pages:

Abstract: يربط البحث الحالي بين متغيرين اساسيين ذات اهمية كبيرة في المجال التسويقي، الا وهما ( الخداع التسويقي والسلوك الشرائي للمستهلك )، ويسعى البحث الى الوقوف على تاثير الخداع التسويقي في السلوك الشرائي للمستهلك في عينة من اسواق بغداد التجارية، وتمثلت مشك | current research Linking between two variables key sectors with great importance in the field of marketing , namely ( a deception and consumer behavior), and research seeks to identify the impact of marketing deception in the purchasing behavior of the consumer in a sample of Baghdad commercial markets , and the research problem was represented by arange of questions about the nature of the relationship and influence between the independent variable (marketing deception) and the dependent variable (consumer behavior), and two fundamental research hypotheses have been emerged, including four sub - hypotheses each of them subjected to statistical tests..The research was done on a random sample of 289 consumers in seven marketing complexes , and the questionnaire tool was the main key in the collection of data and information, and for their analysis of the data used several statistical methods such as mean and standard deviation and simple correlation coefficient and simple linear regression equation and (T) test and (F) test. And The most significant findings of the research is a lack of correlation and impact between research variables , and the research found a set of conclusions, the most important of that the marketing deception practices are from ancient origins and practiced from old time, and most of the countries developed legislation and laws that limit these practices and that protects consumer safety and their rights to access to safe products, and that there are significant moral effect of deception in the distribution on the purchasing of consumer behavior..The main recommendations was the official authorities address the legal legislation that protects the consumer and work to develop them in order to limit or reduce the phenomenon of marketing deception and preserve the safety of consumers, and draw attention to the same culture Limited class and try to spread the culture of use of the products and how to make sure about the safety of products they consume, and as well as urged scholars and researchers further studies and research related to the phenomenon of deception and taking other practices about marketing deception

Author name: مشتاق كامل فرج

Supervisor name: فائز نعيم يوسف

General topic: Administration and Economics

Specific topic: Accounting

Degree: Master

University: University of Baghdad - Faculty Of Administration And Economics - Department Of Accounting

Language: Arabic

University location: Baghdad

First pages:

Author name: محمود كاظم عبد كسار

Supervisor name: علي حسون فندي الطائي

General topic: Administration and Economics

Specific topic: Control and Inspection

Degree: Higher Diploma

University: University of Baghdad - Faculty Of Administration And Economics - Department Of Business Administration

Language: Arabic

University location: Baghdad

First pages:

Abstract: درست ظاهرة السلوك السلبي كظاهرة اجتماعية ونفسية تؤثر على اداء وحياة العاملين داخل المنظمة وخارجها, وتم تبني هذه الظاهرة بالبحث من حيث اثر البيئة الداخلية للمنظمة في معالجة هذا السلوك، كونهما متغيرين ينتميان الى حقل السلوك التنظيمي لمعرفة نتائج تلك المتغير | The phenomenon of negative behavior has studied as a social and a psychological phenomenon affect on the performance and life of workers inside and outside the organization.Theadoption of this phenomenon looks in terms of the effect of the internal environment of the organization in addressing this behavior, being the two variables belong to the field of organizational behavior to see the results of those variables on the Iraqi organizations for its specificities differ from the rest of the Arab and foreign environments. Therefore, the research focused on testing the impact of the internal environment factors of the organization in treatment the negative behaviors of the workers. Theinternal environment with its main elements : organizational structure, administrative leadership and incentives play an important and vital role in the performance of organizations by influencing in the behavior of employees.Therefore,it shows the willingness of workers to make great efforts for the benefit of the organization and possess a strong desire to stay there and stay away from negative behaviors, and acceptance regulatory rules, values, and the main objectives of the organization.The problem of research derived from the sensor to the manifestations of negative behavior in the Offices of General Inspectorsand the negative serious effects on relationship of workers and their organization intellectually and professionally, and importance of recognizing the organization for the consequences of this phenomenon on the performance and commitment of its staff.Onthe basis of this importance,this research came to test the research community that represented by (6) Offices from the Offices of General Inspectorsin the Iraqi Ministries, the sample included (98) employees used the questionnaire to collect data and analyzed paragraphs based on the Statistical Program for Social Sciences (SPSS).The research has come to many conclusions, most notably is, the centralization govern the work of the surveyed Offices of General Inspectors. Theworkers cannot take the decision bythemselves only by reference and in detail to senior management, in spite of knowing what must be done and the limited participation of workers in decision - making by the laws and regulations.The official and complexity limited the free movement of workers towards highlighting the skills and personal abilities that reflected on the functions of the office, standing in front of their ambitions and their inability to embrace new ideas.Theadministrative leadership affect the negative behaviors, and this shows that the leaders or administrative of offices have prominent role in the treatment of negative behaviors, as it put the plans, policies and programs.It can reflect the vision, philosophy and ideas in creating an appropriate internal environment and encourage their human resources to raise and interact with them and encouraging them to participate in the implementation of these ideas and visions, leading consequently to enhance the trend towards positive behaviors and to move away from the negative ones.The types of positive moral incentives increase the sense of relief and a desire work, as well as a sense of complacency about financial incentives that received being equal to employees in other organizations. As well as a number of recommendations, including moving away from the concentration of power in specific areas of the organizational structure of the researched organization, re - distribution of powers, reduce the rules and procedures specific to the behavior of employees within the researched organization, and bring the tradition of fieldwork - based of self - censorship to achieve creativity and a sense of confidence.To avoid the unwanted behavior, it need from the administrative leadership to listen to various levels of regulatory proposals and problems of subordinates and work to resolve it, and not left hanging.Because itis vital and important for the growth of the researched organization and developed and encourages them to take risks and responsibilities and not blame and reprimand them in case of failure and reducingthe specific rules and procedures to the behavior of employees within the researched organization. Thetradition of fieldwork - based of self - censorship must followed to achieve creativity and a sense of confidence, avoid undesirablebehavior, and the need to create an internal environment suitable lead to increase the ability of workers on adaptation by financial and moral incentives and enhancing work to create asuitable internal environment. It leads to increase the ability of workers and enhance the confidence of workers to maintain open channels of communication between management and employees through the activation of the system of incentives based on the professional standards.Througha mechanism of action and a specific system for the management of incentives optimally with the need for an element of credibility in the application of the system of incentives within the organization.Suchincentives to be given to the owners of excellence and innovation in performance and reward creative work, and evaluate the level of incentives and their effectiveness for workers