نتایج جستجو برای: additive model

تعداد نتایج: 2156278  

2017
L. Dale Van Vleck

Henderson described a method to reduce the number of mixed-model equations when estimating additive and nonadditive genetic variances or predicting additive and nonadditive genetic merits. The extension to a maternal effects model is straightforward. When maternal genetic effects are strictly additive, an algebraic identity was found that reduces by a factor of two the order of a matrix that mu...

2014
Paul W. Thurner André Klima Helmut Küchenhoff

There is widespread agreement within academic literature that the NSDAP systematically and effectively targeted the rural areas beginning with the agrarian crisis in 1927/8. However, one issue is left unresolved: were specific levels of agricultural strata differently attracted to the Nazis, and if so, how? In light of the economic and political incentives offered to German peasants with differ...

Journal: :پژوهش های علوم دامی ایران 0
داوود علی ساقی علیرضا شهدادی

introduction kurdish sheep breed is one of the most important native breeds of iran. they are fat-tailed, large-sized, well adapted to the mountainous regions in northern khorasan province and mainly raising for meat production under pastoral production system (28). feed efficiency is a major component in the profitability of the small ruminant enterprise, because quality of range and pasture i...

Journal: :Genetics 2013
Zulma G Vitezica Luis Varona Andres Legarra

Genomic evaluation models can fit additive and dominant SNP effects. Under quantitative genetics theory, additive or "breeding" values of individuals are generated by substitution effects, which involve both "biological" additive and dominant effects of the markers. Dominance deviations include only a portion of the biological dominant effects of the markers. Additive variance includes variatio...

Journal: :به نژادی گیاهان زراعی و باغی 0
محمود رقامی استادیار گروه علوم باغبانی، دانشکدۀ کشاورزی، دانشگاه ولیعصر رفسنجان محمدرضا حسندخت دانشیار گروه علوم باغبانی، دانشکدۀ علوم و مهندسی کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج ذبیح الله زمانی استاد گروه علوم باغبانی، دانشکدۀ علوم و مهندسی کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج محمد رضا فتاحی مقدم دانشیار گروه علوم باغبانی، دانشکدۀ علوم و مهندسی کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج عبدالکریم کاشی استاد گروه علوم باغبانی، دانشکدۀ علوم و مهندسی کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

in order to estimate heritability, heterosis, general and specific combining ability and relationships between them in traits of fruit number per plant, days to the first fruit harvest, yield per plant, average fruit weight and rind thickness, seven local populations of iranian melon (‘tashkandi’, ‘khatouni’, ‘garmak’, ‘aran1’, ‘mirpanji’, ‘suski-e-sabz’ and ‘golpaygan’) were crossed using a co...

2009

This paper introduces the ―min-additive‖ (also called ―min-average‖) utility function. This function is a weighted combination of an additive utility function and a minimization over a set of single attribute utility functions. The weighting is accomplished by exploiting information already contained in the additive and minimization models. Four forms of the min-additive (MA) model are presente...

2012
Till D. Frank Aimée M. Carmody Boris N. Kholodenko

We derive a statistical model of transcriptional activation using equilibrium thermodynamics of chemical reactions. We examine to what extent this statistical model predicts synergy effects of cooperative activation of gene expression. We determine parameter domains in which greater-than-additive and less-than-additive effects are predicted for cooperative regulation by two activators. We show ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1394

اگرکیفیت معلم کلاس برای بهبودیادگیری دانش آموزحیاتی است،پس کیفیت اساتیددانشجو-معلمان، یابه عبارتی معلمین معلمان نیزبرای پیشرفت آموزش بسیارمهم واساسی است.ناگفته پیداست که یک سیستم مناسب آموزش معلمان ،معلمین با کیفیتی را تربیت خواهدکرد.که این کار منجربه داشتن مدارس خوب، ودرنتیجه نیروی کارماهرتروشهروندبهتربرای جامعه خواهدشد. اساتیددانشجو-معلمان نقشی بسیارمهم را در سیستم اموزش معلمان درسراسرجهان ای...

Journal: :JAMDS 2008
Mack L. Galloway Craig A. Nolder

We use additive processes to price options on the Standard and Poor’s 500 index SPX for the sake of comparison of pricing performance across both model class and family of time-one distribution. Each of the additive processes in this study is defined using one of the following: subordination, Sato’s 2002 construction of self-similar additive processes from self-decomposable distributions, or bo...

Journal: :Journal of animal science 1993
L D Van Vleck

Henderson described a method to reduce the number of mixed-model equations when estimating additive and nonadditive genetic variances or predicting additive and nonadditive genetic merits. The extension to a maternal effects model is straight-forward. When maternal genetic effects are strictly additive, an algebraic identity was found that reduces by a factor of two the order of a matrix that m...

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