يهدف البحث إلى تحضير سلسلة من معقدات العناصر الانتقالية ثنائية التكافؤ(المنغنيز, الكوبلت, النيكل, الخارصين والكادميوم) مع المركب الجديد(KL) والمشتق من تفاعل ثنائي كبريتيد الكاربون و المركب الوسطي (HD). شخصت المعقدات ذات الصيغة العامة[M(L)2] بواسطة طيف الرنين النووي المغناطيسي البروتوني والكربوني للمركب الجديد وقياسات الأشعة تحت الحمراء والطيف الإلكتروني ودرجات الانصهار و التوصيلية المولارية و تحليل العناصر .C. H .N S والنسبة المئوية للفلز M في المعقدات والحساسية المغناطيسية والدراسة الحرارية للمركب (KL) وبعض المعقدات. استنادا إلى النتائج المعطاه للدراسات المذكورة فقد تم اقتراح الشكل رباعي السطوح للمعقدات المحضرة من خلال ارتباط ذرات الكبريت لمجموعة الثايول في المركب (KL) مع الأيونات الفلزية وكذلك تمت دراسة الفاعلية الحيوية للمركب المشتق ومعقداته ضد نوعين من البكتريا السالبة (Escherichia coli) والموجبة (Staphylococcus aurous) بتقنية الانتشار كما تم استخدام المركب المحضر (KL) كمثبط لتأكل سبيكة الفا-براص في محلول ملحي لكلورید الصودیوم بتركیز 0.6 مول. دسم-3 لثلاث قيم من الدوال الحامضية (2،4, 7) في ثلاث درجات حرارية مختلفة تراوحت (288-308) مطلقة وبتركيز مقداره 3-10مول.دسم3- لمركب (KL) باستعمال تقنية المجھاد الساكن وتم التعبير عن النتائج من خلال تسجيل قیم تيار التآكل (icorr) حيث اوضحت النتائج ان المركب قام بعمل التثبيط لتأكل سبيكة الفا- براص عند قيمتي الدالة الحامضية 7,4 وكما تم حساب كفاءة التأكل P% اضافة الى الثوابت الثرموديناميكية لعملية التثبيط
The Foreign Account Tax Compliance Act (FATCA) basically targets US citizens’ accounts hold at foreign banks and financial institutions blush, seems and non-financial sector by the Act:( retirement plan companies, investment funds, hedge funds and family investment companies.)
The non Compliance of Foreign of financial institutions act will lead to financial looses and harm regarding reputation, especially for the countries that rely on foreign relations in their financial and banking activities, in addition to deducting 30 % of their total incomes and sales coming from the USA. These institutions can avoid it by entering into agreement with the Internal Revenue Service's to be foreign financial institutions complied with the a
... Show MoreThe conventional view to women is still in society due to the male domination on society and the social values. Since women and the costumes and women. Since women is not half the society, but half of its potential energy that is capable of working. Giving her the chance to work according to her efficiency and ability and academic achievement is a justice in the distribution of professions between the sexes without discrimination. Women bear the responsibility of correcting the view created by men.
The importance of this study comes from knowing the most important social limitations of women work in society which effect on many aspects in her life like choosing a career suiting hers and the range of women working in the universit
... Show MoreMutans streptococci (MS) are a group of oral bacteria considered as the main cariogenic organisms. MS consists of several species of genus Streptococcus which are sharing similar phenotypes and genotypes. The aim of this study is to determine the genetic diversity of the core species of clinical strains of Streptococcus mutans, Streptococcus sobrinus and Streptococcus downei by using repitative extragenic palindromic (REP) primer. The DNA of the clinical strains of S. mutans (n=10), S. sobrinus (n=05) and S. downei (n=04) have been employed in the present study, which have been previously isolated from caries active subjects. The DNA of the clinical and reference strains was
... Show MoreUrinary tract infections (UTIs) mean microbial pathogens in the urethra or bladder (lower urinary tract). Important risk factors for recurrent UTI include obstruction of the urinary tract, use of a bladder catheter or a suppressed immune system. This study aims to isolate and identify bacteria from patients with TCC-bladder cancer or patients with a negative cystoscope and estimate antibiotic susceptibility patterns and evaluate some of the virulence factors. From a total of 62 patients with TCC-BC or negative cystoscope, only 35 favorable bacterial growths were obtained, including Escherichia coli (UPEC), a significant bacterial isolate, and Stenotrophomonas maltophilia. The percentage of multi drug-resistance bacteria
... Show More This study titled “digital addiction and its relationship to social isolation among children in the autism spectrum from the point of view of their parents” in which the
researcher addressed an important topic which is knowledge of digital addiction in a
child with autism spectrum and its relationship to social isolation in them.
The study aimed to dhed the light on the digital addiction in a spectrum child Autism
from the point of view of their parents، by knowing the extent of addiction of children
in the autism spectrum، and identifying the relationship between electronic addiction and the social isolation of children in the autism spectrum.The study presented
several hypotheses،
اهمية البحث :
أصبح التغير المتسارع في جميع مجالات الحياة يمثل السمة المميزة لعصرنا الحالي ونتيجة التغير فقد برزت الحاجة إلى تطوير برامج المؤسسات التربوية والتعليمية لكي تواكب تلك التغيرات خاصة وان الصيحات تعالت من هنا وهناك لا عادة النظر في العلمية التربوية ومحتواها وأهدافها ووسائلها بما يتح للمتعلم الاستفادة القصوى من الوسائل والأدوات التعليمية في رفع مستوى تحصيله الدارس واكت
... Show MoreAbstract:
The aim of this research is to highlight the importance of achieving customer satisfaction by using information technology and Internet networks in the process of purchasing flight tickets, and switching from the traditional method of purchasing and payment operations to the electronic method, to reduce the financial and non-financial risks associated with the traditional purchasing process, as well as saving time, effort and costs for the customer. The researcher used the deductive approach in linking the variables (achieving customer satisfaction and Internet of Things technology for booking electronic tickets)
... Show MoreBacterial water pollution is a genuine general wellbeing concern since it causes various maladies. Antimicrobial nanofibers can be integrated by incorporating nanobiocides, for example, silver nanoparticles into nanofibers. Nylon 6 was dissolved in formic acid at a concentration of (25 wt. %) and tough antibacterial (AgNO3/Nylon) nanofibers were produced utilizing electrospinning system. Polymer solution was tested before accomplishing electrospinning process to acquire its surface tension, electric conductivity and viscosity, where every one of those parameters increased relatively with increasing concentration of (AgNO3) additions. SEM and EDX spectra were utilized to focus on the morphology, surface elemental mem
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The apricot plant was washed, dried, and powdered after harvesting to produce a fine powder that was used in water treatment. created an alcoholic extract from the apricot plant using ethanol, which was then analysed using GC-MS, Fourier transform infrared spectroscopy, and ultraviolet-visible spectroscopy to identify the active components. Zinc nanoparticles were created using an alcoholic extract. FTIR, UV-Vis, SEM, EDX, and TEM are used to characterize zinc nanoparticles. Using a continuous processing procedure, zinc nanoparticles with apricot extract and powder were employed to clean polluted water. Firstly, 2 g of zinc nanoparticles were used with 20 ml of polluted water, and the results were Tetra 44% and Levo 32%; after
... Show MoreKp index correlates with the many magnetosphere properties, which are used to measure the level of magnetic activity. In the solar system, the two different planets, Mercury with weak magnetic field and Jupiter with strong magnetic field, are selected for this study to calculate the planet's magnetosphere radius (RMP) which represents the size of magnetosphere compared with solar activity through Kp index, through two types of geomagnetic conditions; quiet and strong for the period (2016-2018). From the results, we found that there are reversible relations between them during strong geomagnetic storms, while there are direct relations during quiet geomagnetic conditions. Also it is found that the
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