Biosorption of lead, chromium, and cadmium ions from aqueous solution by dead anaerobic biomass (DAB) was studied in single, binary, and ternary systems with initial concentration of 50 mg/l. The metal-DAB affinity was the same for all systems. The main biosorption mechanisms were complexation and physical adsorption of metallic cations onto natural active functional groups on the cell wall matrix of the DAB. It was found that biosorption of the metallic cations onto DAB cell wall component was a surface process. The main functional groups involved in the metallic cation biosorption were apparently carboxyl, amino, hydroxyle, sulfhydryl, and sulfonate. These groups were part of the DAB cell wall structural polymers. Hydroxyle groups (–O

This work is based on the synthesis of Cobalt(II) and Cadmium(II) mixed-ligands compounds obtained from the reaction of N'-(4-methylsulfanyl-benzoyl)-hydrazine carbodithioic acid methyl ester as a ligand and using ethylendiamine (en), 2,2'-bipyridine (bipy) or 1,10-phenanthroline (phen) as a co-ligand. The synthesis of ligand (HL) was based on multi-steps synthetic procedure. The reaction of 4-methylsulfanyl-benzoyl chloride with hydrazine gave 4-methylsulfanyl-benzoic acid hydrazide. This compound was reacted with carbon disulfide and potassium hydroxide in methanol to yield N'-(4-methylsulfanylbenzoyl)-hydrazine potassium thiocarbamate, which upon reaction with methyl iodide resulted in the formation of the ligand. A range of physico-chem

New metal complexes of the ligands 2-benzamido benzothiazole(B1), and 2-actamido benzothiazole(B2) with metal ions Ni(II),and Co(II) were prepared in alcoholic medium. The prepared complexes were characterized by FT-IR and electronic spectroscopy, Magnetic susceptibility, Flame Atomic Absorption technique as well as elemental analysis and conductivity measurement. From the spectral studies, an octahedral monomer structure proposed for Ni(II) complexes, and a tetrahedral monomer structure for Co(II)complexes.Semi-empirical methods (PM3,and ZINDO/1)were carried out to evaluate the heat formation( ?H?f)binding energy(?Eb) and dipole moment(µ)for all metal complexes. Also vibration frequencies, Electrostatic potential, HOMO and LUMO

تؤدي الصحافة المتخصصة دوراً مهماً في حياتنا اليومية وبكل فنونها من خبر وتحقيق وصور كاريكاتورية وتعليق وحوار وتستحق الصحافة الاختصاصية يقظة واهتماما بصدد اهتمامها بالنضال من اجل نظام أعلامي جديد .والتخصص نعني به في الدرجة الاولى تحديد مجالات العمل والتي يعمل فيها الشخص المعني الحائز على معرفة اختصاصية كبرى نتيجة ممارستهُ لها وانشغالهُ بها باستمرار، كما يعني التمكن من تطور كفايات اختصاصية مطلوبة باستمر

منطق الشكل في الخزف

شعر فارسى از دير باز موضوع موشكافى وتحقيق سخن سنجان ونقادان قرار گرفته است، اين سخن آهنگين متخيل بار تا اكنون از حيث گونه ها وصور واژه ها واساليب شيوه وسبك واوزان وقوافى وصنايع واغراض وجوهر شعرى ودرجه ابداع ولطيفه نهانى وجذبه آسمانى آن كم وبيش در بوته نقد راه يافته ودر هر يك از اين شاخه ها پژوهشها وتحقيقها رفته با اينهمه در باز بينى آنچه پيشينيان نگاشته ويا معاصران از آن برداشته اند⁽¹⁾. به نقد معانى واغراض

ا.          This study is concerned with providing an objective, artistic study of the role of women in the pre-Islamic era, and extracting that status from the most important sources that express the language of that era, which is pre-Islamic poetry. The role of women in contemporary societies, the study sought to clarify those goals from a technical and objective point of view, which contributed to the main purpose of the study, which is the status of women in pre-Islamic poetry. The role of women in pre-Islamic society, and how to describe them in rhetorical sentences in poetry. The study was based on the descriptive analytical approach, which is represented by the use of content analysis,

ا.م. نرجس حسين زاير

الجامعة المستنصرية

كلية العلوم السياسية

Wisdom in the verse of the al-hateaa

Ass. Prof. Nargis Hussein Zayer

ملخـــص البحــــث

       وضح البحث أهمية العلم وتعلمه وحفظه مستدلا بالآيات القرآنية والأحاديث النبوية، وقد ورد في الحديث فضل من حفظ أربعين حديثا، وتفنن علماء الإسلام في ذكر الأربعين، فمنهم من جعلها في أصول الدين كالأربعين النووية، ومنهم من جعلها في مسألة معينة من مسائل الفقه كالصلاة أو الصيام أو الزكاة أو الحج أو الجهاد أو في فضل قيام الليل وغير ذلك، وهناك ر