The efficiency of chloro, dichloro, trichloro, bromo, and iodoacetic acids as inhibitors for acid corrosion of iron was studied using polarization technique. A significant retardation of the corrosion rate is observed in ...

Yearly average radon concentrations have not been reported yet in Qatar. Only few measurements on indoor radon concentrations have been conducted during the autumn season in 1992. To complete these measurements a determination ...

Positron annihilation lifetime technique (PAL) has been applied to investigate the behavior of the free volume in pure and doped polyvinyl chloride (PVC) as a function of Pb concentration and temperature. It is noticed ...

New thin layer densitometry and high performance liquid chromatography (HPLC) methods are described for quantitative determination of glafenine in dosage forms in the presence of its photo-degradation products and in serum ...

Four PVC membrane electrode systems responsive to codeinium cation are described. These electrodes are based on the use of the ion-association complexes of the codeinium cation with tetraphenylborate and reineckate ...

A simple potentiometric method is described for mercurimetric titration of barbiturates using a solid-state iodide ion-selective electrode. The optimum titration conditions involve the use of a borate buffer of pH 9-10 as ...

تهدف هذه الدراسة إلى تعريف اتجاهات الطلاب المعلمين في تخصص اللغات والعلوم الاجتماعية نحو الوسائل التعليمية في جامعة السلطان قابوس، وقد دلت نتائج هذه الدراسة على أن: 1- الطلاب المعلمين الذكور والإناث في تخصص اللغات والعلوم ...

هدفت الدراسة إلى الكشف عن معوقات الاشراف التربوي كما يراها المشرفون التربويون في محافظة الاحساء التعليمة في ضوء متغيرات الجنس والمؤهل العلمي والخبرة والتفاعل ببنهم. شملت عينة الدراسة على 47 مشرفة و 29 مشرفا. وتم إعداد ...