هدف: با توجه به رشد روزافزون آموزش شیوه مجازی و ویژه در شرایط گسترش پاندمی کرونایروس، نقش اساسی مدیریت کلاسی ارتقا کیفیت باید مورد قرار گیرد این پژوهش هدف تدوین مدل رابطه علّی هدفمند کلاس وضعیت روان‌شناختی پیامدهای تحصیلی دانشجویان انجام شد. روش: روش بر حسب هدف، کاربردی ماهیت از نوع توصیفی - همبستگی بود. جامعه آماری مشتمل انواع مقاطع دانشگاه­ های دولتی پیام نور شهر تهران نمونه اساس جدول مورگان ب...

Six highly variable microsatellite loci were used to investigate the genetic diversity and population structure of the Garra rufa in Kermanshah and Bushehr provinces, Iran. All of the 6 microsatellite loci screened in this study showed polymorphism. A total of 90 individual fish from 3 populations were genotyped and 60 alleles were observed in all loci. The number of alleles per locus ranged fr...

Understanding the scale at which wild stocks of Persian sturgeon (Acipenser persicus) are genetically discrete is necessary for effective management of this commercially important species. Disomic DNA microsatellite markers are among the best tools for determining stock structure in fishes. As all sturgeon species have a polyploid ancestry of all sturgeons, most gene loci exhibit more than two ...

Let $M$ and $N$ be two finitely generated graded modules over a standard graded Noetherian ring $R=bigoplus_{ngeq 0} R_n$. In this paper we show that if $R_{0}$ is semi-local of dimension $leq 2$ then, the set $hbox{Ass}_{R_{0}}Big(H^{i}_{R_{+}}(M,N)_{n}Big)$ is asymptotically stable for $nrightarrow -infty$ in some special cases. Also, we study the torsion-freeness of graded generalized local ...

pod length is one of the effective components on canola yield selection on the basis of which can increase not only the seed yield but also the oil yield. molecular markers asso-ciated with long pod loci were identified in a doubled haploid population derived from a cross between the canola lines ‘quantum’ (long pod) ‘china a’ (short pod) using rapd and bulked segregant analysis. a molecular ma...

the flowering and fructification period of the chilean strawberry (fragaria chiloensis (l.) duch.) is restricted to approximately 2 mo, which seriously limits the commercial development of the species. the objective of the current investigation was to identify inter simple sequence repeat (issr) polymorphisms associated with flowering duration in accessions of f. chiloensis. the flowering durat...

the construction of molecular maps and identification of genomic regions controlling quantitative traits have great significance for plant breeders. in this study, a genetic analysis of quantitative trait loci (qtls) affecting the heading date of rice was performed using an f2 population of a cross between two iranian landrace cultivars, domsephid and gerdeh, comprising 192 plants. an approxima...

This article addresses the identification of genetic loci (QTL and elsewhere) that influence nonnormal quantitative traits with focus on experimental crosses. QTL mapping is typically based on the assumption that the traits follow normal distributions, which may not be true in practice. Model-free tests have been proposed. However, nonparametric estimation of genetic effects has not been studie...