نتایج جستجو برای: sharp breaks
تعداد نتایج: 73380 فیلتر نتایج به سال:
This paper summarizes a new approach to supersymmetry breaking in the supersymmetric standard model (SSM). The approach arises from some remarkable features of the BRS cohomology for composite operators in the SSM, and the behaviour of those operators when gauge symmetry is spontaneously broken. A new realization of supersymmetry arises for these operators. This realization is equivalent to the...
In a structural time series regression model, binary variables have been used to quantify qualitative or categorical quantitative events such as politic and economic structural breaks, regions, age groups and etc. The use of the binary dummy variables is not reasonable because the effect of an event decreases (increases) gradually over time not at once. The simple and basic idea in this paper i...
This study was conducted to determine the suitable dose of gamma rays for increasing sperm motility and viability after thawing and to assess its effects on malondialdehyde concentration and the rate of sperm DNA strand breaks. Sperm samples in liquid nitrogen were irradiated at doses of zero, 0.1, 0.3, 0.5, 0.7 and 0.9 Gy. The sperm quality and quantity parameters were evaluated before and aft...
استفاده از سنجش از دور بخصوص در محدوده حرارتی به دلیل کاربرد های متعدد در علوم محیطی به طور روز افزون در حال افزایش می باشد. در حال حاضر دسترسی به داده های حرارتی با قدرت تفکیک مکانی و زمانی مناسب، محدودیت-های زیادی دارد. به همین دلیل در سال های اخیر روش های برای بهبود قدرت تفکیک مکانی این تصاویر با استفاده از تصاویر انعکاسی ارائه شده است. این تحقیق بر روی داده های سنجنده etm+و modis در بخش ها...
aim: injury from needle is one of the main ways of transmitting blood diseases in the medical staff. prevention and reduction of such diseases' side effects have been emphasized by the health ministry. this study aimed to investigate factors influencing the behavior of the elam city medical staff when working with sharps instruments. methods: in a cross-sectional study, using a census method, a...
This study extends the previous empirics and conducts a comprehensive analysis of effects terms trade (TOT) on economic growth in large emerging market economy, India, which experienced tremendous transformation from persistently low-growth economy 1950s–1970s to moderate-growth 1980s then high-growth following onset inclusive reforms beginning 1990s. The TOT remained unfavourable during 1950s,...
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