Some Results on Reduced Rings

Mehsin Jabel  Atteya; Dalal Ibraheem Ressan

doi:10.21123/bsj.2008.5.4.669-675

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Publication Date

Sun Dec 07 2008

Journal Name

Baghdad Science Journal

Volume

5

Issue Number

4

DOI

10.21123/bsj.2008.5.4.669-675

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Some Results on Reduced Rings

"Reduced Ring

Semiprime Ring

Prime Ring

Essential Ideal

Derivations and Homomorphism"

Mehsin Jabel Atteya

Dalal Ibraheem Ressan

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The main purpose of this paper is to study some results concerning reduced ring with another concepts as semiprime ring ,prime ring,essential ideal ,derivations and homomorphism ,we give some results a bout that.

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Publication Date

Fri Jan 11 2019

Journal Name

Iraqi Journal Of Physics

Effect of water absorption on some mechanical and physical properties of epoxy/polyurethane blend reinforced with nano silica powder

Hand lay-up

nano SiO2

diffusion coefficient

flexural strength

Fick’s 2nd law.

Rana M.

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The aim of this work is to evaluate some mechanical and physical
properties (i.e. the impact strength, hardness, flexural strength,
thermal conductivity and diffusion coefficient) of
(epoxy/polyurethane) blend reinforced with nano silica powder (2%
wt.). Hand lay-up technique was used to manufacture the composite
and a magnetic stirrer for blending the components. Results showed
that water had affected the bending flexural strength and hardness,
while impact strength increased and thermal conductivity decreased.
In addition to the above mentioned tests, the diffusion coefficient
was calculated using Fick’s 2nd law.

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(3)

Publication Date

Wed Nov 01 2017

Journal Name

Journal Of Economics And Administrative Sciences

The impact of marketing orientation on improving the quality of service applied research in some Iraqi mobile phone companies

marketing orientation

service quality.

سعدون حمود

شروق جاسم

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The research discusses two variables are important, orientation marketing and quality of service, and that the purpose of the research is to see whether the telecom companies applied orientation marketing or not and to what extent is keen to apply it to suit the Iraqi environment as it has been applied research in kork Telecom company and Asia Cell Telecom are sectors service job in the business sector in Iraq, The information was obtained through the design of the questionnaire compatible runway Likert, and distribution (92) questionnaire, which (50) for the company Korek Telecom and (42) of the Asia-Cell, research population sample included a number of staff in the departments and units in the two companies, it has been support

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(1)

Publication Date

Sat Jul 04 2026

Journal Name

Retos: Nuevas Tendencias En Educación Física, Deporte Y Recreación, Issn-e 1988-2041, Issn 1579-1726, Nº. 70, 2025, Págs. 1438-1445

The effect of a nutritional program on the electromyography (EMG) of some muscles of weightlifters in the snatch lift

Omar

Marwa

Aws

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Autorías: Omar Khalid Yasir, Marwa Husein Ali, Aws Miqdad Jafar Hassan Alhusseini. Localización: Retos: nuevas tendencias en educación física, deporte y recreación. Nº. 70, 2025. Artículo de Revista en Dialnet.

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Publication Date

Tue Mar 31 2015

Journal Name

Al-khwarizmi Engineering Journal

Influence of Coating with Some Natural Based Materials on the Erosion Wear Behavior of Glass Fiber Reinforced Epoxy Resin

Keywords: Composites

Preparation of natural materials

Erosion wear

glass fiber

Coating.

Aseel Basim

Emad Saadi

Reem Alaa

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Abstract

In the present study, composites were prepared by Hand lay-up molding. The composites constituents were epoxy resin as a matrix, 6% volume fractions of glass fibers (G.F) as reinforcement and 3%, 6% volume fractions of preparation natural material (Rice Husk Ash, Carrot Powder, and Sawdust) as filler. Studied the erosion wear behavior and coating by natural wastes (Rice Husk Ash) with epoxy resin after erosion. The results showed the non – reinforced epoxy have lower resistance erosion than natural based material composites and the specimen (Epoxy+6%glass fiber+6%RHA) has higher resistance erosion than composites reinforced with carrot powder and sawdust at 30cm , angle 60

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Publication Date

Sun Jan 01 2023

Journal Name

Technologies And Materials For Renewable Energy, Environment And Sustainability: Tmrees22fr

Preparation and study the partial substitution of aluminum with copper on some physical properties of the compound TlSr2Ca2Cu3O8+δ

Shatha

Ahlam

Sarab

Kareem

Auday

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(2)

(1)

Publication Date

Thu Oct 03 2024

Journal Name

Retos

The effect of purposeful three-dimensional training on developing some motor abilities and skill performance among female fencing players

Ramah Muhammad

Fatimah Abed

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The study highlights the critical need to focus on the physical, motor, and technical abilities of female fencing players by developing and testing modern, scientifically-based training methodologies tailored to the specific demands of the sport. The study's objective was to assess the effectiveness of targeted three-dimensional training in enhancing the participants' motor skills and technical performance. Utilizing an experimental design, the study involved forming both experimental and control groups. The sample comprised 16 female fencers from the College of Physical Education and Sports Sciences for Girls. After excluding two players during the exploratory phase, the remaining 14 were evenly divided into experimental and contro

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(2)

(3)

Publication Date

Mon Apr 06 2020

Journal Name

August

INFLUENCE OF SOME FACTOR ON SOMATIC EMBRYOS INDUCTION AND GERMINATION OF DATE PALM CV BARHI BY USING CELL SUSPENSION CULTURE TECHNIQUE

This study was done to examine different concentrations of mercuric chloride (Hgcl2) for Explants sterilization and different concentration of NAA) mg/L with 2iP for their effect on initiation primary callus and subsequent embryogenesis in Phoenix dactyliferae cultivar Barhi. Leaf primordial and shoot tips were excised from 2-3 years old offshoot. The result showed that contamination percentage decreased with an increase in concentration of Hgcl2 for two explants where in the control (0.0)% gave highest value 75% and 62.5% of contamination for leaf primordial and shoot tip respectively while the addition (0.1)% gave a significant decrease 37.5 and 0% for explants respectively. The Explants were inoculated onto Murashiege and Skoog

1962 (MS) medium supplemented with 2iP 3mg/L and containing 0

25

50 or 100 mg/L of NAA

the addition (50) mg/L of NAA gave highest value 68.8% in percentage of callus initiation with significant difference from addition 0% gave lowest value (18.8)%

as well Explants of shoot tip gave significant difference was 53.1% while leaf primordial gave 28.1%

Primary callus was transferred to fresh MS medium containing (0

5

10 and 20) mg/L of NAA with 3mg/L 2iP

Results were recorded after 12 weeks. A highest value of embryonic callus induction percentage or fresh weight and dry weight 87.5% or 1.56g and 0.47g for the character respectively for the treat 20 mg/L while control treatment 0.0 gave the lowest value 12.5% or 0.37g and 0.14g for same character respectively. Inoculated 1g fresh biomass into a 250 ml Erlenmeyer flask containing 50 ml MS liquid medium supplemented with NAA 20mg/L and agitated at 150 rpm by shaker to making suspension culture the measurements of packed cell volume ( pcv) or fresh and dry weight taken weekly for 12 weeks

maximum values were reached in the eighth week of PCV and fresh weight but the dry weight reached to highest value in seventh week

then the curve began to decline gradually until it reached stability in the last two weeks. The cell suspension was Diluted to different initial cell density of 100

500

10000

50000 and 100000 cells /ml with hemocytometer. The initial cell number of (10000) cells gave significant different of plating efficiency PE (11.6)% while (100) cells gave lowest value 1.8% of PE.

Ali A.

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Publication Date

Mon Aug 04 2014

Journal Name

Iraqi National Journal Of Chemistry

Comparative Study for Antibacterial Activity of Some Maleamic acid Derivatives with Some Commercial Antibiotic

Taghreed

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Publication Date

Mon Sep 01 2014

Journal Name

Ibn Al-haitham Jour. For Pure & Appl. Sci

Studying the Biological Activity of Some Oxazepine Derivatives Against Some G(+) and G(-) Bacteria.

Husam S.

A. F.

Warka'a T

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The preliminary test of the compounds N [2– (3,4–dimethoxy nitrobenzene oxazepine– 2,3–dihydro–4,7–dione]–5–mercupto–2–amino–1,3,4–thiadiazol [A] and N [ 2–anthralidene– 5– ( 2–nitrophenyl ) –1,3–oxazepine–4,7–dione–2–d](5–mercapto–1,3,4–thiadiazole–2–amin) [B] , showed that they possess high activity against some positive and negative bacteria , like pseudomonas aeruginosa (pseudo.), Escherichia coli (E-coli), staphylococcus aureus (sta.) and Bacillus subtilis (Ba.) and finally there is a study of the effect of some antibiotics like streptomycin (S), gentamycin (GN), chloramphenicol (C) and Nalitixic acid (NA) in order to compare the differences in effects. In the present study, results

Publication Date

Wed Jun 30 2021

Journal Name

Iraqi Journal Of Market Research And Consumer Protection

RATE CONSTANT OF SOME AMINO DERIVATIVES DISSOCIATION: RATE CONSTANT OF SOME AMINO DERIVATIVES DISSOCIATION

Keywords: Amino glycosides

derivative reagents

conduct metric measurement

dissociation constant calculation.

Anud M. A.

Ziadan J.

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Amino glycoside derivation including, Neomycin, Streptomycin, Kanamycin and Gentamycin with special reagents, which are benzoylchloride; benzene sulfonyl chloride and phthalic anhydride were made to enhance Uv-detectability for HPLC analysis. But there are many problems facing pre column derivation and in order to solve this, the conductivity of antibiotic derivatives were used to calculate the dissociation constant and the hydrolysis rate which determined concern type reaction. In addition the characteristics those controlling the hydrolysis of antibiotic-derivatives were investigated.

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