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Article
The Composition operator induced by a polynomial of degree n
المؤثر التركيبي المحتث من متعددة حدود من الدرجة n

Author: Azhar Abbas Majeed أزهار عباس مجيد
Journal: Baghdad Science Journal مجلة بغداد للعلوم ISSN: 20788665 24117986 Year: 2011 Volume: 8 Issue: 1 Pages: 179-182
Publisher: Baghdad University جامعة بغداد

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Abstract

In this paper, we characterize normal composition operators induced by holomorphic self-map , when and .Moreover, we study other related classes of operators, and then we generalize these results to polynomials of degree n.

في هذا البحث أعطينا وصفآ للمؤثرات الاعتيادية المحتثة من الدالة التحليلية على U، عندما و . فضلآ عن ذلك فقد درسنا بعض الأنواع الأخرى من المؤثرات، ثم قمنا بتعميم تلك النتائج على متعددة حدود من الدرجة n.


Article
Impact of in vitro Preparation with Citrullus Colocynthis on DNA Normality of Human Asthenozoospermic Semen

Authors: Hind A Abdul-Ghafoor --- Rushdie S AL-Hadithy --- Mohammad 0. Selman --- Saad S. Al-Dujaily
Journal: Iraqi Journal of Embryos and Infertility Researches المجلة العراقية لبحوث الأجنة والعقم ISSN: eISSN: 26166984 / pISSN: 22180265 Year: 2015 Volume: 5 Issue: 1 Pages: 36-45
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

Background:Citrullus colocynthis (CC) is an herbal medicine used in the treatment of a wide range of diseases. Recently, It has been studied on in vitro activation of mice sperms with no research concern the effect of this plant on the DNA normality following in vitro preparation of human semen samples.Objectives: The present study was aimed to examine the effect of adding CC in the medium used for in vitro sperm activation of asthenospermic men and related factors and to found out the effect of CC on the DNA status following the activation.Materials and Methods: Citrullus colocynthis aqueous extract (0.01mg/ml culture medium) was used for in vitro sperm activation . One hundred and ten semen samples were divided into two groups, the first group activated in vitro by adding CC extract to the culture medium Ham's F-12 (the treated group) and, the second group sperm activated in vitro with Ham's F-12 alone ( the control group).Results: In vitro activation of sperms with aqueous extract of CC has shown positive effect on sperm concentration, sperm motility, and grade activity of progressive forward movement. There was a significant (P<0.05) increase in certain sperm function parameters of asthenozoospermic in treated group compared with the control group .The study showed that the DNA fragmentation resulted from treated group were lower than that of control group.Conclusions: According to the results of present study, adding aqueous extract of CC to the human sperms activation culture medium leads to an improvement in certain sperm function parameters of asthenozoospermic men with no harmful effect on the human sperms DNA with decrease in DNA denaturation.


Article
THE EFFECT OF STIRRING AND INTERRUPTION ON THE ETCHING CHARACTERISTIC OF CR-39 TRACK DETECTOR
دراسة تأثير الاثارة والتوقف على مميزات القشط لكاشف الاثر النووي CR-39

Author: T.M. SALMAN
Journal: Journal of Basrah Researches (Sciences) مجلة ابحاث البصرة ( العلميات) ISSN: 18172695 Year: 2010 Volume: 36 Issue: 3A Pages: 17-21
Publisher: Basrah University جامعة البصرة

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Abstract

Etching behavior of the CR-39 plastic track detector hve been studied. From bulk etch rate as well as from track etch rate, the sensitive equilibrium of this detector in NaOH solutions is examined in detail. A comparison of discrimination properties between NaOH and KOH is made .

لقد تم دراسة سلوك القشط الكيمياوي لكشف الاثر النووي CR-39 باستخدام محلول القشط NaOH و KOH مع تشخيص الحساسية المتوازنة للكشف باستخدام نفس المحلولين من معرفة معدل الحفر العام VB و معدل حفر الاثر VT ,كما تمت المقارنة بين المميزات التي حصلت للكاشف باستخدام محلولي القشط NaOH وKOH.

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