Preferred Language
Articles
/
jeasiq-99
Comparison Bayes Estimators of Reliability in the Exponential Distribution
...Show More Authors

Abstract

           We produced a study in Estimation for Reliability of the Exponential distribution based on the Bayesian approach. These estimates are derived using Bayesian approaches. In the Bayesian approach, the parameter of the Exponential distribution is assumed to be random variable .we derived bayes estimators of reliability under four types when the prior distribution for the scale parameter of the Exponential distribution is: Inverse Chi-square distribution, Inverted Gamma distribution, improper distribution, Non-informative distribution. And estimators for Reliability is obtained using the well known squared error loss function and weighted squared errors loss function. We used simulation technique, to compare the resultant estimators in terms of their mean squared errors (MSE), mean weighted squared errors (MWSE).Several cases  assumed for the parameter of the exponential distribution for data generating, of different samples sizes (small, medium, and large). The results were obtained by using simulation technique, Programs written using MATLAB-R2008a program were used. In general, Simulation results shown that the resultant estimators in terms of their mean squared errors (MSE) is better than the resultant estimators in terms of their mean weighted squared errors (MWSE).According to the our criteria is the best estimator  that gives the smallest value of MSE or  MWSE .  For example bayes estimation is the best when the prior distribution for the scale parameter is improper and Non-informative distributions  according to the smallest  value  of  MSE  comparative to the values of MWSE  for all samples sizes at some of true value of t and . 

 

Crossref
View Publication Preview PDF
Quick Preview PDF
Publication Date
Mon Mar 08 2021
Journal Name
Baghdad Science Journal
Oscillation of the per capita growth rate
...Show More Authors

in this paper cquations of the per capita growth rate are considered sufficient conditions for oscillation of all solutions are obtained the asymptotie behavior of the nonoscillatory solution of all souliotions are obtained

View Publication Preview PDF
Publication Date
Fri Jul 24 2026
Journal Name
Journal Of The Iraqi University
The legal system of Administrative BOT Contracts
...Show More Authors

View Publication
Publication Date
Tue May 05 2026
Journal Name
New Perspectives On The History Of Early Mesopotamia
345Cuneiform Tablets from the Archive of Irisaĝrig
...Show More Authors

The six tablets presented here were returned to Iraq by the Jordanian authorities in 2008 and are now housed in the Iraq Museum.1 They date from the Third Dynasty of Ur (2112–2004 B.C.), from AS 9 to IS 2. The tablets record expenditures (zi-ga) of gold and various food items such as bread, fish, soup, beer, and meat. These food supplies were provided primarily as rations for royal messengers (lu2-kiĝ2-gi4-a lugal) on their journeys from cities such as Dēr, Adamdun, and Simaškum to the king’s residence. In addition, rations were provided for men coming from several cities, including Maza, Harši, and Kimaš. This study confirms that the tablets came from Irisaĝrig.

View Publication
Crossref
Publication Date
Wed Jan 01 2020
Journal Name
Cogent Engineering
On the computational aspects of Charlier polynomials
...Show More Authors

View Publication
Scopus (39)
Crossref (36)
Scopus Clarivate Crossref
Publication Date
Fri Nov 03 2023
Journal Name
Iraqi Journal Of Pharmaceutical Sciences( P-issn 1683 - 3597 E-issn 2521 - 3512)
Factors affecting the preparation of Cilnidipine nanoparticles
...Show More Authors

Cilnidipine is a dihydropyridine calcium channel blocker used to improve the neurological outcome following subarachnoid hemorrhage. It belongs to BCS class II drugs that have a low oral bioavailability of 13%, thus preparation as nanoparticles would be expected to improve bioavailability. The aim of the study is to prepare Cilnidipine as nanoparticles using different carriers and co-carriers, concentrations, and types. Cilnidipine nanoparticles were prepared by a solvent anti-solvent method using different carriers (Soluplus®, Poloxamer 188, PVA cold) with co-stabilizers (PEG200, glycerol) at different ratios. Based on the obtained results, formula N4, which included Soloplus in a 5:5:1.19 weight ratio of drug to

... Show More
View Publication
Scopus (11)
Crossref (7)
Scopus Crossref
Publication Date
Tue Oct 01 2024
Journal Name
Computational And Theoretical Chemistry
The curious case of S4N4 − A reinvestigation
...Show More Authors

View Publication
Scopus (4)
Crossref (3)
Scopus Clarivate Crossref
Publication Date
Tue Sep 01 2020
Journal Name
Baghdad Science Journal
On The Normality Set of Linear Operators
...Show More Authors

            In this paper, the Normality set  will be investigated. Then, the study highlights some concepts properties and important results. In addition, it will prove that every operator with normality set has non trivial invariant subspace of  .

 

View Publication Preview PDF
Scopus (3)
Crossref (2)
Scopus Clarivate Crossref
Publication Date
Wed Jun 19 2019
Journal Name
Journal Of Accounting And Financial Studies ( Jafs )
Evaluation the Procedure for Recognition of Income Tax to Reduce Tax Evasion: بحث تطبيقي في الهيئة العامة للضرائب
...Show More Authors

  Tax state institution regards as one of the largest state institutions implementing the tax rules issuing be legislative body and achieving the goals of tax (financial, economic, social and political). So, the tax management should pay attention to the procedures enabling it to achieve those rules starting from the procedures of tax restrict and ending by tax allocation where the process of assessment the taxation must relaxing on modern methods. The problem of the study raising from that in spite of there is a low  obliging the taxable person (registered or not) to submit a declaration about his income and the achieved profit to be the base of taxation˒ where the other ways  are secondary ways helping in rejection of t

... Show More
View Publication Preview PDF
Crossref
Publication Date
Sat Dec 28 2024
Journal Name
Journal Of Physical Education
The effect of a psychological counselling approach on cognitive load and mental fatigue among young 110-meter hurdles athletes
...Show More Authors

The research aimed to identify and build two specialized scales for cognitive load and mental stress and to identify the level of each of them among 110-meter steeplechase runners among youth, and to prepare a psychological counseling approach to reduce the level of cognitive load and mental stress among 110-meter steeplechase runners among youth, so that the two research hypotheses are that there are differences. There are statistically significant differences between the results of the pre- and post-tests of the experimental group in measuring cognitive load. There are statistically significant differences between the results of the pre- and post-tests of the experimental group in measuring mental stress. The experimental method w

... Show More
View Publication
Crossref
Publication Date
Wed Dec 29 2021
Journal Name
Modern Sport
Building and measuring e-learning scale from the point of view of students of the College of Physical Education and Sports Sciences - University of Baghdad
...Show More Authors

Abstract: The research covered five chapters:       So, the first chapter definition of the research is from the introduction to the research and its importance, as the importance of the research lies in an expression of the reality of e-learning as it is one of the new patterns of the educational process and its role in enhancing communication and interconnectedness between the learners from the students ’point of view Physical Education and Sports Sciences for Girls, University of Baghdad, as for the problem The research was, and through the researcher’s acquaintance with many previous studies, references and sources, and being a student at the College of Physical Education and Sports Sciences - University of

... Show More
View Publication Preview PDF
Crossref