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مقارنة بعض معايير تحديد الرتبة لانموذج الانحدار الذاتي (الطبيعي وغير الطبيعي) من الرتبة الاولـى بأستخدام المحاكـاة
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The search is contain compared among some order selection criteria  (FPE,AIC,SBC,H-Q) for the Model first order  Autoregressive when the White Noise is follow Normal distribution and some of non Gaussian distributions (Log normal, Exponential and Poisson distribution ) by using Simulation  

 

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Publication Date
Sun Feb 03 2019
Journal Name
Journal Of The College Of Education For Women
تحلیل محادثة منتدى: نص مختار من مجلة بول كیمب الالكترونیة: تحلیل محادثة منتدى: نص مختار من مجلة بول كیمب الالكترونیة
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الخلاصة:
ان المحادثة كانت الشغل الشاغل لكثیر من العلماء المھتمین بدراستھم بھذا المجال من امثال ساكس
.( واخرون ( ١٩٧٤ ) وغرایس ( ١٩٧٥ ) و شكلوف و اخرون ( ١٩٧٧ ) و دانكن ( ١٩٧٢ ) و بیرتن ( ١٩٨٠
قدمت بیرتن ( ١٩٨٠ ) تحلیلا لمسرحیة النادل الابكم لغرض تقدیم طریقتھا. تتوخى الباحثة من
تقدیم ھذا البحث تحلیل تركیب المحادثة منتدى حول القصة الادبیة و القصة الروائیة باستعمال نموذج بیرتن
١٩٨٠ ). و یمیل البحث الى الاجابة عن ا

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Publication Date
Sun Sep 01 2013
Journal Name
Journal Of The College Of Basic Education
دراسة تأثير كل من المستخلص المائي والكحولي لعدد من النباتات الطبية على طفيلي الزحار الأميبي Entamoeba histolytica خارج الجسم الحي
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في هذه الدراسة تم أستخدام ثلاثة مستخلصات نباتية تعود للنباتات التالية : نبات الزعتر البري Thymus vulgaris, دباغ الرمان Punica grantum ولحاء البلوط (الجفت) Quercus robur.  اظهرت النتائج تأثير كبير للمستخلص المائي والكحولي للجفت على اكياس الطفيلي مقارنة بالنباتين الاخرين, يليه في ذلك المستخلص المائي والكحولي لدباغ الرمان ثم في النهاية يأتي المستخلص المائي والكحولي للزعتر البري

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Publication Date
Thu Jun 01 2017
Journal Name
Journal Of Economics And Administrative Sciences
A Comparison Between Maximum Likelihood Method And Bayesian Method For Estimating Some Non-Homogeneous Poisson Processes Models
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Abstract

The Non - Homogeneous Poisson  process is considered  as one of the statistical subjects which had an importance in other sciences and a large application in different areas as waiting raws and rectifiable systems method , computer and communication systems and the theory of reliability and many other, also it used in modeling the phenomenon that occurred by unfixed way over time (all events that changed by time).

This research deals with some of the basic concepts that are related to the Non - Homogeneous Poisson process , This research carried out two models of the Non - Homogeneous Poisson process which are the power law model , and Musa –okumto ,   to estimate th

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Publication Date
Sat Jun 01 2013
Journal Name
Journal Of Economics And Administrative Sciences
Comparison Ridge regression method with some classical methods to estimate the parameters of Lomax distribution by simulation
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Abstract

In this research provide theoretical aspects of one of the most important statistical distributions which it is Lomax, which has many applications in several areas, set of estimation methods was used(MLE,LSE,GWPM) and compare with (RRE) estimation method ,in order to find out best estimation method set of simulation experiment (36) with many replications  in order  to get mean square error and used it to make compare , simulation experiment  contrast with (estimation method, sample size ,value of location and shape parameter) results show that estimation method effected by simulation experiment factors and ability of using other estimation methods such as(Shrinkage, jackknif

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Publication Date
Sun Dec 01 2019
Journal Name
Baghdad Science Journal
Comparison of Some Suggested Estimators Based on Differencing Technique in the Partial Linear Model Using Simulation
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In this paper new methods were presented based on technique of differences which is the difference- based modified jackknifed generalized ridge regression estimator(DMJGR) and difference-based generalized  jackknifed ridge regression estimator(DGJR), in estimating the parameters of linear part of the partially linear model. As for the nonlinear part represented by the nonparametric function, it was estimated using Nadaraya Watson smoother. The partially linear model was compared using these proposed methods with other estimators based on differencing technique through the MSE comparison criterion in simulation study.

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Publication Date
Fri Sep 30 2022
Journal Name
Journal Of Economics And Administrative Sciences
Comparison of Some Methods for Estimating the Survival Function and Failure Rate for the Exponentiated Expanded Power Function Distribution
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     We have presented the distribution of the exponentiated expanded power function (EEPF) with four parameters, where this distribution was created by the exponentiated expanded method created by the scientist Gupta to expand the exponential distribution by adding a new shape parameter to the cumulative function of the distribution, resulting in a new distribution, and this method is characterized by obtaining a distribution that belongs for the exponential family. We also obtained a function of survival rate and failure rate for this distribution, where some mathematical properties were derived, then we used the method of maximum likelihood (ML) and method least squares developed  (LSD)

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Publication Date
Wed Mar 16 2022
Journal Name
Journal Of Educational And Psychological Researches
Self-control of kindergarten teachers and its relationship to some variables
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The aim of the current research is to identify the self-control of kindergarten teachers as well as to identify the significance of the differences according to a variable (years of service, academic achievement, specialization). Its final paragraphs consist of (35) paragraphs, and its psychometric properties were verified and the tool was applied to a sample of (400) teachers chosen randomly from kindergarten teachers affiliated to the General Directorates of Education in Baghdad, Rusafa, and Karkh for the academic year 2019-2020

In light of the objectives of the current research, the following results were reached

  1. The current research sample is from kindergarten teachers with self-contro
  2. There are diffe

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Publication Date
Thu Sep 01 2011
Journal Name
مجلة العلوم الاقتصادية والإدارية
دراسة تطبيقية لمشاكل صفوف الانتظار للمركبات في بعض محطات التعبئة لمدينة بغداد
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According to the circumstances experienced by our country which led to Occurrence of many crises that are the most important crisis is gaining fuel therefore, the theory of queue (waiting line) had been used to solve this crisis and as the relevance of this issue indirect and essential role in daily life.

Publication Date
Mon Mar 28 2022
Journal Name
Modern Sport
الدافعية العقلية وعلاقتها باكتساب بعض مفاهيم السلامة المرورية لتلاميذ الصف الخامس الابتدائي
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هدفت الدراسة إلى استخدام مقاييس الدافعية العقلية وعلاقتها باكتساب بعض مفاهيم السلامة المرورية لتلاميذ الصف الخامس الابتدائي , واستخدمت الباحثتان المنهج الوصفي بأسلوبي المسح والعلاقات الارتباطية لملاءمته لطبيعة البحث , إذ تكونت عينة الدراسة من (75) تلميذ وتلميذه من تلاميذ مدرسة فدك الابتدائية الأهلية , إذ قامت الباحثتان بأستخدام مقياس الدافعية العقلية والمكون من (25) فقرة  وأختبار تنمية بعض مفاهيم السلام

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Publication Date
Mon Dec 01 2025
Journal Name
العلوم النفسية
التعاطف الذاتي وعلاقته بالمرونة النفسية لدى طلبة المرحلة المتوسطة
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يهدف البحث التعرف على: 1- التعاطف الذاتي لدى طلبة المرحلة المتوسطة . 2- المرونة النفسية لدى طلبة المرحلة المتوسطة . 3- الفروق ذات الدلالة الاحصائية عند مستوى دلالة (05,0) على مقياس التعاطف الذاتي وفق متغير الجنس (ذكور / اناث ). 4- الفروق ذات الدلالة الاحصائية عند مستوى دلالة (5 0,0) على مقياس التعاطف الذاتي وفق متغير الصف (الثاني /الثالث ). 5- الفروق ذات الدلالة الاحصائية عند مستوى دلالة (0,05) على مقياس المرونة النفسية وفق

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