نتایج جستجو برای: bronsted type acid
تعداد نتایج: 1984667 فیلتر نتایج به سال:
Acid-soluble collagen could be isolated from fish skin using acetic acid. In recent years, much attention has been paid to collagen from marine sources, mainly arising from the fact that there is no risk of contagious diseases. Moreover, by processing the fish, significant amounts of waste materials are produced which can be considered as a substitute for these collagen sources. Thunnus tonggol...
Background and Aim: Perturbations in copper (Cu) metabolism are characteristic of diabetes type I. Hyperglycemia and increased free radicals generation result in increased Cu plasma levels and leads to oxidative stress. The aim of this study was to determine the antioxidant effects of ascorbic acid on Cu plasma levels in streptozotocin (STZ) induced diabetic rats. Materials and Methods: ...
Introduction: The aim of this study was to determine the effects of Insulin and Lascorbic acid on prevention of neuronal in granular layer of dentate gyrus and pyramidal layer of CA3 of hippocampus in streptozotocin-Induced diabetic rats. Methods: In this experimental study, diabetes type 1 was included by a single intraperitoneal injection of streptozotocin (STZ) (60mg/kg) in male adult ...
Ellipsoidal huge granitoidic batholiths of Zahedan, with NW-SE trending, located in south of this city which is intruded in low metamorphosed Eocene flysches (eastern Iran flysch zone). This batholith has two compositional terms: an extensive intermediate-acid term includes diorite - granodiorite with igneous source (I- type origin) and a low extent crustal and hybrid origin acidic term (H-type...
Themodynamicplly stnincd four membered cyclic 8-lactams do not show a corrcspondimg kinetic effect in the rates of their ring openhg reactions. Contrary to expectations. breaking the C-N bond in these mined ring seuc~ures appears to be a relatively difficult process. A four membend cyclic phosphonamidate. on the other hand, undergoes rapid hydrolysis in water with exclusive endocyclic P-N fisio...
Background and Aims: Wild-type RS-12 strain of mumps virus has been isolated from an Iranian patient and has been attenuated after several serial passages. This study was designed to determine nucleotide and amino acid substitutions in the HN, F and SH genes during attenuation of the wild-type virus. Materials and Methods: Required viral samples prepared at Razi Vaccine and Serum Institute. Vi...
در سالهای اخیر تلاش زیادی برای سنتز کمپلکس های سوپرامولکول و پلیمرهای کوئوردیناسیونی بر مبنای لیگاندهای آلی چند دندانه شده است. این مواد به دلیل داشتن خواص منحصر به فرد، کاربردهای زیادی در صنعت دارند. سنتز پلیمرهای کوئوردیناسیونی جدید از سرب(ii) در ابعاد بالک(توده) و نانو با استفاده از روش گرادیان دمایی و به روش شاخه جانبی صورت گرفته و با روش طیف سنجی ir و پایداری گرمایی آن ها توسط آنالیزهای وز...
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