In this paper some results concerning two reverse derivations on semiprime rings are presented. These results are related to a result which is inspired by the classical result of E. Posner. This result is asserts that if R is a 2- torsion free semiprime ring, f and h are non-zero reverse derivations of R. Then f h can not be a non-zero derivation. A notion of orthogonal reverse derivations arises here.
Key word and phrases: prime ring, semi-prime ring, derivation, reverse derivation, orthogonal reverse derivation.

The ground state proton momentum distributions (PMD) and elastic charge form
factors for some odd 1f  2p shell nuclei, such as , , 59 63Co Cu and Cu 65 have been
studied using the Coherent Density Fluctuation Model and formulated by means of
the fluctuation function (weight function) ( ) .
2
f x The fluctuation function has been
connected to the charge density distribution of the nuclei and determined from the
theory and experiment result. The feature of the long-tail behavior at high
momentum region of the PMD has been calculated by both the theoretical and
experimental fluctuation functions. It is found that the inclusion of the quadrupole
form factors ( ) 2 F q C in all nuclei under study, which are de

In the framework of correlation method so-called coherent density fluctuation model (CDFM) the nucleon momentum distributions (NMD) of the ground state for some even mass nuclei of fp-shell like 50Cr, 52Cr and 54Cr isotopes are examined. Nucleon momentum distributions are expressed in terms of the fluctuation function (|f(x)|2) which is evaluated by means of the nucleon density distributions (NDD) of the nuclei and determined from theory and experiment. The main characteristic feature of the NMD obtained by CDFM is the existence of high-momentum components, for momenta k ≥ 2 fm−1. For completeness, also elastic electron scattering form factors, F(q) are evaluated within the same framework.

An effective two-body density operator for point nucleon system folded with the
tenser force correlations ( TC's), is produced and used to derive an explicit form for
ground state two-body charge density distributions (2BCDD's) applicable for
19F,22Ne and 26Mg nuclei. It is found that the inclusion of the two-body TC's has the
feature of increasing the central part of the 2BCDD's significantly and reducing the
tail part of them slightly, i.e. it tends to increase the probability of transferring the
protons from the surface of the nucleus towards its centeral region and consequently
makes the nucleus to be more rigid than the case when there is no TC's and also
leads to decrease the
1/ 2
2 r of the nucleus. I

Dielectric measurements were carried on pure and doping potassium sulfate with copper and iron ions samples at 1wt.% and 3wt.% for both of copper and iron. The dielectric constant (ε') decreases exponentially from 2.8 to 1.5 as frequency increase for both dopant which is attributed to the space charge and structural distortion. The dielectric loss (ε") for Cu dopant decrease gradually with frequency. The same behavior for 1%Fe dopant while its 3%Fe doping started from 0.27 then decrease exponential. Band gaps for all samples almost constant around 6 eV.

        The aim of this paper is to obtain a set of traveling wave solutions for klein –Gorden equation with kerr law non-linearity. More precisely, we apply a new path of popularized homogeneous balance (HB) method in terms of using linear auxiliary equations to find the results of non-linear klein-Gorden equation, which is a fundamental approach to determine competent solutions. The solutions are achieved as the integration of exponential, hyperbolic, trigonometric and rational functions. Besides, some of the solutions are demonstrated by the3D graphics.

This paper presents a new iterative Image Restoration based on the least-Square
method. Based on adaptive this filtration algorithm is focused on transformation the
given restoration model from the spatial domain to the Fourier domain. This
implementation of derived models needs less storage capacity and far less time in
execution. Also in this paper present ANew three Step Search for motion estimation
technique (NTSS).In this paper two goal have been achieved, once obtained a
restored image without adopted restoration technique on it (B-frame), also achieved
a good rate of compression ratio by adopted motion estimation technique.

ان الوجود الهندي في الكويت سبق ظهور النفط بسنوات طويلة ومع مرور الوقت تدفقت أفواج كبيرة من العاملين والتجار للعمل والاستقرار في الكويت، فأصبحت الجالية الهندية من أكبر الجاليات ولها مكانتها واحترامها عند السكان الكويتيين. لقد أثرت تلك الجاليات في المجتمع الكويتي، وتأثرت أيضاً بالعادات والتقاليد الكويتية، وأسهمت في انعاش الاقتصاد عن طريق التجارة المتبادلة بين البلدين منذ عقود عديدة، وكانت الكويت من الأسو

الملخص:

عمدنا في هذا البحث إلى التعرف على حياة مؤرخ من مؤرخي المغرب العربي في القرن السادس الهجري, وهو ابو مروان عبد الملك بن ابي القاسم محمد بن الكردبوس التوزري, إذ قسم البحث الى مبحثين: المبحث الاول خصص للتعرف عن حياة المؤرخ وعن عصره الذي عاش فيه, وعن شيوخه وعن رحلاته ومؤلفاته ووفاته. والمبحث الثاني: خصص لدراسة منهج المؤرخ في كتابه "الاكتفاء في اخبار الخلفاء" . حيث أظهر البحث أن منهج وأسلوب ابن ال

الحمد لله رب العالمين والصلاة والسلام على اشرف المرسلين, لقد قدم لنا ابن بطوطة من خلال رحلته التي استمرت اكثر من ثمانية وعشرين عاماً زار وتجوّل فيها الى بلدان الشرق الاقصى وبعض مناطق افريقيا واطلع على اكثر الدول والمدن ونقل لنا ما رآه من معلومات حول نواحي الحياة السياسية والاقتصادية والاجتماعية واعطى معلومات تاريخية قيمة وصادقة وموثوقة بالأدلة والبراهين التي التمسها في رحلته . فقد كان ابن بطوطة من اشهر الر

بحيرة ساوة من البحيرات السياحية المهمة في العراق وهي بحيرة مغلقة، تقع في هضبة العراق الجنوبية في المنطقة  الجافة، اغلب تغذيتها جوفية، ولا يوجد مصدر مائي سطحي واضح تتغذى منه. تم اجراء عملية مسح طبوغرافي لأول مرة لهذه البحيرة، لجرف البحيرة الصخري وقاعها وسواحلها وتم اكتشاف ثلاث عيون مائية تغذيها لها خصائص جيومورفية مميزة تقع منتصف البحيرة تنبع من اعماق بعيدة، تم استخدام أجهزة المسح الطبوغرافي ذات الدقة ال

ترتبط اللّهجات العربية ارتباطاً وثيقاً بالقراءات القرآنية, فهي تمثل جانباً كبيراً منها, ودراسة اللّهجات دراسة واعية تفيدُ كثيراً في عزو هذه القراءات اللّهجيّة إلى أصحابها, وهي خدمة جليلة للقرآن الكريم الذي قامت الدراسات العربية له وبه.

وهذا البحثُ يعدُّ محاولةً لاستجلاءِ الخصائص اللّهجية لقراءة أحد القراء الكوفيين (الأعمش) وبيان ما اختصت به من غيرها من القراءات، وذلك عبر مدخل قدّمَ نبذةً مختصرةً عن سي

Concentrations of uranium were measured in this study for twenty soil samples from four areas with different depths (soil surface-20-40-60-80)cm .The study regions include Missan Governorate (Al-Iskan area,Al-Shibbana area ,Hai-Al Moualimin Al Jadied area ,Sector 30 area). The Uranium concentrations in soil samples measured by using fission tracks registration in (CR-39) track detector that caused by the bombardment of (U-283) with thermal neutrons from (241Am-Be) neutron source that has flux neutron thermal of (5 ×103 n cm-2 s-1). The concentrations values were calculated by a comparison with standard samples. Through out the result, it was found that averages of uranium concentrations in soil samples were as the following : Al - Iskan

تشكل الحالة الليبية إنموذجا لتأثير التغيرات في الاوضاع الداخلية في مناطق الجوار الاقليمي بعد الثورات العربية، اذ ان ليبيا مابعد القذافي تعاني من اشكالات معقدة قابلة للامتداد جغرافياً في محيطها سواء العربي او الافريقي وذلك بحكم موقعها الجيوستراتيجي كمدخل للعالم العربي على القارة السمراء ، لاسيما ان ليبيا التي شكلت استثناء في علاقاتها الاقليمية المتقلبة مع دول الجوار ابان عهد القذافي دخلت في استثناء من نوع

A new class of generalized open sets in a topological space, called G-open sets, is introduced and studied. This class contains all semi-open, preopen, b-open and semi-preopen sets. It is proved that the topology generated by G-open sets contains the topology generated by preopen,b-open and semi-preopen sets respectively.

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A new, simple, accurate, fast and sensitive spectrophotometric method has been
developed for the analysis of Pyrocatechol, Resorcinol, and pyrogallolin pure
commercial samples by continuous flow injection analysis. The method was based on
the oxidation of the organic compounds with Ce(IV)sulfate in acidic medium to
formed a brown colored species which determined using homemade Ayah 3SBGR x3-
3D solar cell flow injection microphotometer. Optimum conditions were obtained
using a high intensity green light emitted diode as an irradiation source
forPyrocatechol, Resorcinol, whileblue light emitted diode as an irradiation source for
pyrogallol. The linear dynamic range for the instrument response versus Pyrocatechol,

.

Studying the spatially distribution pattern of fuel station in province of Baghdad
was done by utilizing GIS techniques which they are the most powerful tools for
design, display and analysis for the spatial data. Nearest Neighbor Analysis method
was applied for analyzing the spatial distributions of the fuel stations. Baghdad was
considered to be divided in to two main parts (outskirts of Baghdad and center of
Baghdad). The nearest neighbour for all parts of Baghdad indicates for the
distribution pattern is random and differs from place to another in randomly rate.

Hepatitis E (HE) is an inflammation of the liver caused by hepatitis E virus
(HEV) infection. Iraq is one of the Asian countries with high incidence and
prevalence of hepatitis. In this paper, HE prevalence will be determined in Al-
Muthanna province /Iraq. Commercially available Micro-ELISA for marker of
hepatitis E (HEV IgM, Foresight, USA) kit was used to test (270) patients for HEV
IgMantibodies. Also (10) blood samples from normal healthy individuals were used
as normal control in this study. Among the (270) analyzed serum samples, a total of
(72) samples (26.66 %) were found to be positive for anti-HEV IgM antibodies, and
all these patients were tested for confirmatory test at central public health
labora

In this study it was found that a significant decrease in the level of leptin in young
Iraqi smokers (16+ 0.7ng/mL) compared to non smokers(24.2+ 4.5ng/mL) while, B2
microglobulin and CRPwas significantly increased in the smokers (1.2 + 0.3μg/mL),
(4.07+ 0.02mg/L) respectively, compared to non smokers (0.6 + 0.9μg/mL) ,( 2.88+
0.002mg/L) respectively, the presented data indicates the effect of smoking on these
immunological markers.

In this paper, we study the concepts of generalized reverse derivation, Jordan
generalized reverse derivation and Jordan generalized triple reverse derivation on -
ring M. The aim of this paper is to prove that every Jordan generalized reverse
derivation of -ring M is generalized reverse derivation of M.

In this paper a measure of linear local dependence has been used between two
random variables and a study is conducted for the properties of this measure where
two examples of bivariate probability distributions has been considered, which are
bivariate Gumbel distribution and bivariate Beta-Stacy distribution, and applied on
data collected by using a questionnaire conducted to study the reasons for the
increase of application in private collages in Iraq. Five elements has been considered
as random variables and the dependence has been measured between every two
elements to estimate how correlated these elements are and their effect on the
application in private collages of Iraq generally and Baghdad specifically.<

A simple, fast, and sensitive batch and flow injection spectrophotometric
methods have been developed for the determination of clonazepam(CZP) in pure
form and in pharmaceutical preparations. The proposed methods are based on the
oxidative coupling reaction of the reduced clonazepam using Zn powders and conc.
HCl with payrocatechol and in the presence of ferric sulphate. The resulting reddish
colored product had a maximum absorbance at 515 nm. The optimum reaction
conditions and other analytical parameters have been evaluated . The linear ranges
for the batch and FI methods determination of CZP were 0.5-32, 50-400 μg mL-1
and the detection limits were 0.193, 22.60 μg mL-1 for both methods respectively.
Statis

Seventy-six urine specimens were collected from of patients suffering from recurrent
urinary tract infections (UTIs). Specimens were bacteriologically analyzed, fifty
(65.8%) of isolated bacterial strains were belonged to E.coli. 100% of isolated
uropathogenic E.coli (UPEC)strains displayed a biofilm positive phenotype under
optimized condition using microtiter plate assay. 21 of E.coli strains classified as highly
positive biofilm producers (42%), and 29 (58%) as weakly positive biofilm producers.

Abstract The aim of this study is preparing an intellectual map according to the feedback (verbally and writhingly ) in order to learn some skills of floor exercises in the women's artistic gymnastics , In addition to that the aim of this study defines on the impacts of intellectual map according to the feedback approach, and to identify the best group between the three groups study in the learning of skills approach in this study, the researchers used the experimental method, the subject of the study included on students second class in physical education and sport sciences , Baghdad University (2014-2015) , and divided into three groups for teaching skills which was under studied .The species used the specific manner by lot for selection

     يُعٌد الشعور بالعزلة مشكلة اجتماعية رئيسة، وخبرة شخصية مؤلمة يتعرض لها الأفراد في مرحلة من مراحل حياتهم، إنَ العزلة تظهر في جميع المراحل العمرية للفرد، وان جميع الناس يشعرون بها، ولكن بدرجات متفاوتة، واوقات مختلفة إلا إنها تبلغ ذروتها في مدة المراهقة، وإنّ العزلة الاجتماعية  تُعدٌ مظهرا من مظاهر السلوكات السلببة لدى الانسان.

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قياس العزلة الاجتماعية