نتایج جستجو برای: تویین 80 و تویین 20

تعداد نتایج: 1463293  

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم پایه 1392

چکیده زمینه و هدف: فنی توئین یکی از داروهای ضد صرع است که دارای عوارض متعددی بوده و یکی از مهمترین آنها القا هیپوکسی در جنین که این هیپوکسی از طریق استرس اکسیداتیو باعث مرگ سلولی از نوع آپوپتوزیس می شود. از آنجایی که آنتی اکسیدانهایی مثل ویتامینe باعث کاهش آسیب اکسیداتیو می شود لذا در این مطالعه اثر ویتامین e بر روی تغییرات تخریبی ایجاد شده در نورونهای پیرامیدال کورتکس مغز موش به دنبال هیپوکسی...

2008
Hazem Akel Farouk Al-Quadan Manar Atoum Mohammed Battikhi

Three strains of facultatively anaerobic thermotolerant and moderately halophilic bacteria were isolated from two Jordanian hot spring locations. The novel Bacillus strains were short rods, Gram-positive, motile and spore formers. The strains were capable of anaerobic (but not aerobic) growth at 63C, moderately halophilic, able to grow at NaCl concentration range of 12 15 % and at temperatures ...

2013
T. Fujiwara H. S. Chen

Three partial radial distribution functions [RDF's] are calculated by means of relaxed dense-random packing models for a Fe80B20 glass. The model structures reproduce fairly well recently reported experimental partial RDF's derived from x-ray diffraction and neutron diffraction using isotopic substitutional methods. Most significantly, both the model calculated by means of relaxed dense-random ...

1996
Christos Faloutsos Yossi Matias Avi Silberschatz

The focus of this paper is on the characterization of the skewness of an attribute-value distribution and on the extrapolations for interesting parameters. More speciically, given a vector with the highest h multiplicities ~ m = (m 1 ; m 2vide eeective schemes for obtaining estimates about either its statistics or subsets/supersets of the relation. We assume an 80/20 law, and speciically, a p=(...

2009
Asma Mubarak Steve Counsell Robert M. Hierons

Objective. To explore whether an 80:20 rule exists in Java from six coupling metrics over multiple versions of open-source software and, if so, whether that relationship is exacerbated over time. Methods. We used the automated tool JHawk to extract the 6 different coupling metrics from four Open-Source Systems. We then ranked the classes on each of these 6 coupling metrics and then analysed the...

1996
Christos Faloutsos Yossi Matias Abraham Silberschatz

1999
E. Torrie J. P. Singh A. Gupta

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