نتایج جستجو برای: since the 1940s
تعداد نتایج: 16055747 فیلتر نتایج به سال:
in recent years many researchers have been focused on interaction of small molecules with dna. dna is generally the primary intracellular of anticancer drugs, so the interaction between small molecules and dna can cause dna damage in cancer cells, blocking the division of cancer cells and resulting in cell death. the flavonoids are a large group of polyphenolic natural products that are widely ...
abstract: about 60% of total premium of insurance industry is pertained?to life policies in the world; while the life insurance total premium in iran is less than 6% of total premium in insurance industry in 2008 (sigma, no 3/2009). among the reasons that discourage the life insurance industry is the problem of adverse selection. adverse selection theory describes a situation where the inf...
This paper reviews the changing status of goose populations in Scotland since the 1940s, and the changing policies and management activities employed over that time. The size of all goose populations has risen since the 1940s due to protection measures, changes in agriculture and levels of shooting, in the UK and elsewhere. The development of goose policies in response to public interest and pr...
El Niño Southern Oscillation (ENSO), Interdecadal Pacific Oscillations (IPO), and their phase relation with the Annular Mode (SAM) largely control Antarctic climate variability. The relative roles of these modes remain elusive, particularly in backdrop global warming. In this study, we present a seasonally resolved new ice core (IND33) record oxygen isotope (? 18 O) for past two centuries (1809...
The spring issue of Language of 1949 brought a remarkable new paper to its readers on the behavior of morphophonemes, and the techniques that should be used to uncover them.1 This paper was entitled Automatic alternations, (Wells 1949) and was the work of a young professor at Yale University, Rulon S. Wells (1919-), who would much later in 1976 be president of the LSA. It tackled the question o...
abstract: in the paper of black and scholes (1973) a closed form solution for the price of a european option is derived . as extension to the black and scholes model with constant volatility, option pricing model with time varying volatility have been suggested within the frame work of generalized autoregressive conditional heteroskedasticity (garch) . these processes can explain a number of em...
چکیده اهمیت اشیاء در نگاه انسان از آغاز پیدایش در زندگی جریان داشته و تاکنون نیز ادامه دارد. ساخت اشیاء از انواع کاربردی و آئینی آغاز و تا انواع الکترونیکی آن به همزیستی مسالمت آمیزی با انسان منتهی گشته است. حال اینکه این همزیستی در هر دوره ای از تاریخ چگونه خودنمایی می کند از اهمیت بسیاری برخوردار است.این رساله به بررسی موقعیت شی از جنبه های زیبایی شناسی، هویت مداری، نمادگرایی، جامعه شناسی ...
wireless sensor networks (wsns) are one of the most interesting consequences of innovations in different areas of technology including wireless and mobile communications, networking, and sensor design. these networks are considered as a class of wireless networks which are constructed by a set of sensors. a large number of applications have been proposed for wsns. besides having numerous applic...
The two world wars in the 20th century had a great impact on European clothing industry, and to some extent, they also promoted development of fashion industry. designers have designed "wartime clothes" meet needs women's work life during war. "Wartime clothing" is breakthrough traditional clothing, its unique characteristics shine brilliantly wartime. In order liberate people from shadow war a...
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