نتایج جستجو برای: especially at ma level

تعداد نتایج: 4487790  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Yuan O Zhu Mark L Siegal David W Hall Dmitri A Petrov

Mutation is the ultimate source of genetic variation. The most direct and unbiased method of studying spontaneous mutations is via mutation accumulation (MA) lines. Until recently, MA experiments were limited by the cost of sequencing and thus provided us with small numbers of mutational events and therefore imprecise estimates of rates and patterns of mutation. We used whole-genome sequencing ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده علوم پایه 1388

introduction acetic acid bacteria are large group of obligate aerobic gram negative bacteria with the ability to oxidize ethanol to acetic acid (1). they are widely distributed in natural habitats and classified in family acetobacteraceae. members of this family are useful in industrial production of vinegar(2). acetic acid bacteria (aab) can use substrates as glucose, ethanol, lactate or glyc...

2005
Mark Casson Bernard Yeung Amir N. Licht Jordan I. Siegel

Schumpeter’s canonical depiction of the entrepreneur as an agent of social and economic change implies that entrepreneurs are especially sensitive to the social environment. We use an organizing framework based on institutional economics, in combination with lessons from cross-cultural psychology, to consider the social dimensions of entrepreneurship. The level and modes of entrepreneurial acti...

2015
Jiyoon Cho Lisa Tremmel Okkyung Rho Andrew M. Camelio Dionicio Siegel Thomas J. Slaga John DiGiovanni

A series of pentacyclic tritperpenes found in Perilla frutescens (P. frutescens), including ursolic acid (UA), oleanolic acid (OA), corosolic acid (CA), 3-epi-corosolic acid (3-epiCA), maslinic acid (MA), and 3-epi-maslinic acid (3-epiMA) were evaluated for their effects on epidermal cell signaling, proliferation, and skin inflammation in relation to their ability to inhibit skin tumor promotio...

Journal: :Journal of Ayub Medical College, Abbottabad : JAMC 2006
Rizwan Hashim Shazia Nisar Khalil ur Rehman Naeem Naqi

BACKGROUND In view of the high morbidity and mortality associated with ischemic heart disease (IHD), the estimation of individual cardiovascular risk over and above the assessment of classic risk factors, such as age, hypercholesterolemia and hypertension, is an important prerequisite for focusing preventive measures and therapeutic measures. Microalbuminuria (MA) as a marker of IHD in nondiabe...

2017
Guangqing Liu Mengwei Xue Qinpu Liu Yuming Zhou

Water-soluble monomer APEG-PG-(OH)n were produced and the Structure of APEG-PG-(OH)5 were identified by 1H-NMR. APEG-PG-(OH)n were copolymerized with maleic anhydride (MA) to synthesize no phosphate and nitrogen free calcium carbonate inhibitor MA/APEG-PG-(OH)n. The structure and thermal property of MA/APEG-PG-(OH)5 were characterized and measured by 1H-NMR, GPC and TGA. The observation shows t...

2015
M. M. Siddeq M. A. Rodrigues

A new image compression algorithm is proposed and demonstrated in the context of structured light 3D reconstruction. Structured light images contain patterns of light, which are captured by the sensor at very high resolution. The algorithm steps involve a two level Discrete Wavelet Transformation (DWT) followed by a Discrete Cosine Transformation (DCT) to generate a DC-Column and an MA-Matrix (...

2001
S. Heinemeyer G. Weiglein

The leading electroweak MSSM two-loop corrections to the ρ-parameter are calculated. They are obtained by evaluating the two-loop self-energies of the Z and the W boson at O(GFmt ) in the limit of heavy scalar quarks. A very compact expression is derived, depending on the ratio of the CPodd Higgs boson mass, MA, and the top quark mass, mt. Expressions for the limiting cases MA ≫ mt and MA ≪ mt ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1388

هدف تحقیق حاضر بررسی تاثیر نشانه های فرا گفتمان متنی بر فهم متون انگلیسی به وسیله ی زبان اموزان فارسی زبان است.این تحقیق علاوه بر این کوشیده است تا میزان اگاهی این زبان اموزان و نحوه ی تعامل انان را با متون خوانده شده در زبان انگلیسی به وسیله ی پرسش نامه ی تهیه شده بررسی کند.بر اساس محتوای یک متن انگلیسی یازده سوال درست /غلط طرح گردید و یک مرتبه با ان متن و یک مرتبه با نسخه ای که نشانه ها...

Journal: :iranian journal of science and technology (sciences) 2015
m. n. soltani rad

the fabrication of a non-doped red organic light-emitting device (oled) has been developed using naturally occurring curcumin as an emissive layer of oled. in this research, the electroluminescent spectrum (el) of curcumin as a donor-acceptor-donor (d-a-d) chromophore was obtained at wavelength of 612 nm. also, the maximum external quantum efficiencies (eqe) for this device was measured and fou...

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