نتایج جستجو برای: one factor
تعداد نتایج: 2703713 فیلتر نتایج به سال:
Purpose: Skin is continuously exposed to many hazardous environmental factors such as ultraviolet radiation (UV). Many investigations have been shown to cause skin damages. The aim of present research was to study the effect of a single time of UVB radiation on the expression pattern of keratinocyte growth factor (KGF) gene in mice. Materials and Methods: UVB (30 mJ/cm2 and 50 mJ/cm2) were rad...
We construct a no-arbitrage model of bond prices where the long bond is used as a numeraire. We develop bond prices and their dynamics without developing any model for the spot rate or forward rates. The model is arbitrage free and all nominal interest rates remain positive in the model. We give examples where our model does not have a spot rate; other examples include both spot and forward rates.
Let A and B be n × n matrices, let C = ABA−1B−1 be the multiplicative commutator of A and B, and assume AC = CA. Olga Taussky (1961) examined the structure of A and B for the case where A and B are unitary. Marcus and Thompson (1966) generalized her results to the case where A and C are assumed normal. We look at this problem for general A, with particular attention to the cases where A is diag...
Let E be an optimal elliptic curve of conductor N , such that the L-function of E vanishes to order one at s = 1. Let K be a quadratic imaginary field in which all the primes dividing N split and such that the L-function of E over K also vanishes to order one at s = 1. In view of the Gross-Zagier theorem, the second part of the Birch and Swinnerton-Dyer conjecture says that the index in E(K) of...
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