نتایج جستجو برای: genetic models

تعداد نتایج: 1476842  

Journal: :فصلنامه تحقیقات کاربردی در علوم دامی 0
نجمه کارگر عضو هیات علمی مرکز تحقیقات کشاورزی و منابع طبیعی کرمان مختار علی عباسی دانشیار، موسسه تحقیقات علوم دامی کشور محسن شفیعی کارشناس اداره کل امور عشایرکرمان

the objective of the present study was to estimate genetic parameters and genetic trends of growth traits , fleece weight and reproductive traits. data collected from 1993 to 2007 by the kermani breeding station were analyzed .traits were included birth weight (bw, n=2614), 3 months weight (3mw,n=2312), 6 months weight (6mw, n=1890), 9 months weight (9mw,n=1380) and 12 months weight (12mw,n=105...

Journal: :علوم دامی ایران 0
محمود وطن خواه دانشیار مرکز تحقیقات کشاورزی و منابع طبیعی شهرکرد

data utilized in this study were 6800 records of lambs’ life longevity, and survival rate from 263 sires and 1839 dams collected from 1989 through 2009, from the lori-bakhtiari flock at shooli station in shahrekord. the data were analyzed, using linear and hazard ratio models along with weibul function. these models included such non genetic factors as year and month of birth, sex of lamb, type...

Journal: :Genetics 2010
D Habier L R Totir R L Fernando

Information from cosegregation of marker and QTL alleles, in addition to linkage disequilibrium (LD), can improve genomic selection. Variance components linear models have been proposed for this purpose, but accommodating dominance and epistasis is not straightforward with them. A full-Bayesian analysis of a mixture genetic model is favorable in this respect, but is computationally infeasible f...

Journal: :نشریه دانشکده فنی 0
روزبه شاد دانشگاه خواجه نصیر حمید عبادی دانشگاه خواجه نصیر محمد سعدی مسگری دانشگاه خواجه نصیر علیرضا وفائی نژاد دانشگاه خواجه نصیر

different industrial decision makers and managers in our country, try to select and organize locations for aggregating industrial units, estates and areas with respect to land use planning visions and industrial development strategies. in this regard, considering large quantity of the input data and diverse criteria affecting this application, it is complicated and difficult to optimally make d...

Journal: :مدیریت فناوری اطلاعات 0
محمود البرزی واحد علوم تحقیقات محمد ابراهیم محمد پورزرندی دانشگاه آزاد تهران مرکز محمد خان بابایی واحد علوم و تحقیقات

decision trees as one of the data mining techniques, is used in credit scoring of bank customers. the main problem is the construction of decision trees in that they can classify customers optimally. this paper proposes an appropriate model based on genetic algorithm for credit scoring of banks customers in order to offer credit facilities to each class. genetic algorithm can help in credit sco...

1999
Kevin A. Buhr

We wish to model the spread of genetic innovation through a spatially structured population. As genetic models are naturally specified in terms of the interactions of individuals, we begin by constructing a discrete-site particle model with migration and Moran-like reproduction interactions between pairs of particles within each site. For many purposes, such a discrete model is intractable, so ...

Journal: :Developmental psychology 2014
Daniel A Briley K Paige Harden Elliot M Tucker-Drob

Parents' expectations for their children's ultimate educational attainment have been hypothesized to play an instrumental role in socializing academically relevant child behaviors, beliefs, and abilities. In addition to social transmission of educationally relevant values from parents to children, parental expectations and child characteristics may transact bidirectionally. We explore this hypo...

Journal: :Statistica Sinica 2010
Ramon I Garcia Joseph G Ibrahim Hongtu Zhu

We consider the variable selection problem for a class of statistical models with missing data, including missing covariate and/or response data. We investigate the smoothly clipped absolute deviation penalty (SCAD) and adaptive LASSO and propose a unified model selection and estimation procedure for use in the presence of missing data. We develop a computationally attractive algorithm for simu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور مرکز - دانشکده زبانهای خارجی 1391

the primary goal of the current project was to examine the effect of three different treatments, namely, models with explicit instruction, models with implicit instruction, and models alone on differences between the three groups of subjects in the use of the elements of argument structures in terms of toulmins (2003) model (i.e., claim, data, counterargument claim, counterargument data, rebutt...

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