Biological studies of some nutritional formula on liver functions دراسات بيولوجية لبعض التوليفات الغذائية على وظائف الکبد

Studies on Some Biological Aspects of Dihydrostreptomycin.

The catalytic conversion of streptomycin to a dihydro compound was recently described and some of the biological characteristics of the latter were noted (Peck et al., 1946; Fried and Wintersteiner, 1947; Bartz et al., 1946). Peck and his coworkers (1946) reported that dihydrostreptomycin showed in vitro activity against Bacillus subtilis, and Bartz et al. (1946) also reported activity against ...

study of hash functions based on chaotic maps

توابع درهم نقش بسیار مهم در سیستم های رمزنگاری و پروتکل های امنیتی دارند. در سیستم های رمزنگاری برای دستیابی به احراز درستی و اصالت داده دو روش مورد استفاده قرار می گیرند که عبارتند از توابع رمزنگاری کلیددار و توابع درهم ساز. توابع درهم ساز، توابعی هستند که هر متن با طول دلخواه را به دنباله ای با طول ثابت تبدیل می کنند. از جمله پرکاربردترین و معروف ترین توابع درهم می توان توابع درهم ساز md4, md...

Studies on Synthesis and Biological Evaluation of Some Substituted Fluoroquinolones'

In the present study the synthesis of Fluoroquinolone nucleus, 7-chloro-6-fluoro-1, 4dihydro-4-oxoquinoline-3-ethyl carboxylate has been reported by the microwave-assisted condensation of 3-chloro-4-fluoro aniline and diethyl (ethoxymethylene) malonate (EMME) under solvent free conditions. The microwave-assisted synthesis of Fluoroquinolone nucleus was successfully standardized and optimized ma...

On Padé Approximation of Some Practical Functions

Phytochemical and biological studies on some Egyptian seaweeds.

Extracts of four species of seaweeds, Ulva lactuca L. (green), Liagora farinosa Lamouroux (red), Padina pavonia L. and Turbinaria ornata Turn (brown), were screened for their antimicrobial, and antimalarial activities, and binding affinity for human opioid receptors. Phytochemical analysis led to the isolation and identification of 10 constituents: fucosterol, stearic acid, palmitic acid, palmi...