نتایج جستجو برای: growth factors

تعداد نتایج: 1779092  

Journal: :The Journal of General Physiology 1938
A. D. Hershey

Simple assumptions have led to equations by which the latent period in multiplication and the bacterial numbers expected at any time during the phase of rapid growth may be predicted. Experimental data obtained under rather diverse conditions have given satisfactory agreement with calculated values. Since the mathematical expressions contain no arbitrary constants, more than accidental signific...

Journal: :Presse medicale 1993
A M Stoppa D Blaise P Viens D Baume P Mannoni D Maraninchi

Haematopoietic growth factors are a family of genetically determined low molecular weight glycoproteins which regulate the proliferation and differentiation of haemopoietic cells through specific membrane receptors. GCSF and GMCSF reduce the morbidity from infections associated with the neutropenia induced by chemotherapy of onco-haematological neoplasia; EPQ totally corrects not only the anaem...

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

126 abstract: in this research we studied the effects of cyclic hydration and dehydration of cysts of artemia urmiana and artemia parthenogenetica on the hatching percentage, survival and growth. the experiment was carried out in 3 treatments (1-3 hydration/dehydration cycles) with 3 replicates for each treatment. later effects of cold preservation at -20°c during three time periods were ...

H. Deldar M. Kazemifard M. Taghipour Shahbandi Z. Ansari Pirsaraei,

This study was conducted in two steps to determine the effects of in ovo injection of zinc acetate (ZAC) on some gene expression associated with embryonic growth and development, and with growth and carcass characteristics of the resultant chicks. In the first step the effect of in ovo injectionofZAC on the expression of insulin-like growth factors (IGFs:IGF-I and IGF-I), myog...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1391

the major aim of this study was to investigate the relationship between social and cultural capital and efl students’ critical thinking skills. this study takes this relationship in to account to see if people with different sociocultural status are different regarding their critical thinking skills. to this end, 160 university students majoring in english language and literature, english trans...

It is widely agreed that small scale enterprises (SSEs) used to play a crucial role in achieving the industrial and economic development. Though SSEs play indispensable economic role, studies are limited to analyze the external factors that affect the growth of SSEs independently. Therefore, the objective of this paper is to examine the effect of external firm factors influencing small scale ma...

Journal: :Journal of Society of Cosmetic Chemists of Japan 2001

پایان نامه :0 1370

all analytical methods are generally based on the measurement of a parameter or parameters which are somehow related to the concentration of the species.an ideal analytical method is one in which the concentration of a species can be measured to a high degree precision and accuracy and with a high sensitivity. unfortunately finding such a method is very difficult or sometimes even impossible.in...

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