نتایج جستجو برای: beta additive mapping

تعداد نتایج: 448790  

Journal: :Genetics 1994
S Gavrilets A Hastings

We study a two locus model, with additive contributions to the phenotype, to explore the dynamics of different phenotypic characteristics under stabilizing selection and recombination. We demonstrate that the interaction of selection and recombination results in constraints on the mode of phenotypic evolution. Let Vg be the genic variance of the trait and CL be the contribution of linkage diseq...

2007
S. W. Xiang W. S. Yin

Using the additive weight method of vector optimization problems and the method of essential solutions, we study some continuity properties of the mapping which associates the set of efficient solutions S(f ) to the objective function f . To understand such properties, the key point is to consider the stability of additive weight solutions and the relationship between efficient solutions and ad...

Journal: :Ecology 2010
Joseph A Veech Thomas O Crist

Diversity partitioning has become a popular method for analyzing patterns of alpha and beta diversity. A recent evaluation of the method emphasized a distinction between additive and multiplicative partitioning and further advocated the use of multiplicative partitioning based on a presumed independence between alpha and beta. Concurrently, additive partitioning was criticized for producing dep...

Journal: :international journal of nonlinear analysis and applications 2010
c. park a. najati

using the hyers-ulam-rassias stability method, weinvestigate isomorphisms in banach algebras and derivations onbanach algebras associated with the following generalized additivefunctional inequalitybegin{eqnarray}|af(x)+bf(y)+cf(z)|  le  |f(alpha x+ beta y+gamma z)| .end{eqnarray}moreover, we prove the hyers-ulam-rassias stability of homomorphismsin banach algebras and of derivations on banach ...

H. Sabouri, M. Nahvi

In this study, quantitative trait loci (QTLs) controlling rice heading date were detected in a F2:3 population derived from a cross between an indica rice variety, Tarom Mahalli, with early heading date, and an indica variety, Khazar, with late heading date. SSR linkage map was constructed using 74 polymorphic markers and 192 F2 individuals and covered a total of 1231.50 cM of rice genome. QTL ...

Journal: :Fuzzy Sets and Systems 2008
Alireza Kamel Mirmostafaee Mohammad Sal Moslehian

We introduce three reasonable versions of fuzzy approximately additive functions in fuzzy normed spaces. More precisely, we show under some suitable conditions that an approximately additive function can be approximated by an additive mapping in a fuzzy sense. © 2007 Elsevier B.V. All rights reserved. MSC: primary 46S40secondary 39B52 39B82 26E50 46S50

In this paper, we study a coupled system of nonlinear fractional differential equations with multi-point boundary condi- tions. The differential operator is taken in the Riemann-Liouville sense. Applying the Schauder fixed-point theorem and the contrac- tion mapping principle, two existence results are obtained for the following system D^{alpha}_{0+}x(t)=fleft(t,y(t),D^{p}_{0+}y(t)right), t in (0,...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
f. hosseini m. b. habibi najafi m. hashemi s. blourian f. zaman zade

macaroni is one of the favorite dishes in iranian,s family food program. in this study, effects of using different level of curcumin as a natural and functional component extracted from curcuma longa plant, against total count , total coliforms, psychrotrophic bacteria, yeasts and moulds and colorimetric properties of macaroni in comparison with beta carotene and turmeric as commercial color ad...

Journal: :the iranian journal of pharmaceutical research 0
farrin sattary javid pharmaceutical chemistry department, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. alireza shafaati pharmaceutical chemistry department, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. afshin zarghi pharmaceutical chemistry department, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran.

one of the problems encountered in ce separations of basic compounds is the adsorption of analytes onto the negatively charged capillary wall which could lead to poor repeatability of migration time and peak area. additionally, separation of enantiomers of chiral of basic drugs is commonly carried out in low ph buffer which contributes to strong ionic interaction of the cationic drug ions with ...

Journal: :Genetics 2008
Luyan Zhang Huihui Li Zhonglai Li Jiankang Wang

F(2) populations are commonly used in genetic studies of animals and plants. For simplicity, most quantitative trait locus or loci (QTL) mapping methods have been developed on the basis of populations having two distinct genotypes at each polymorphic marker or gene locus. In this study, we demonstrate that dominance can cause the interactions between markers and propose an inclusive linear mode...

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