نتایج جستجو برای: population differentiation
تعداد نتایج: 900635 فیلتر نتایج به سال:
This study was carried out to investigate the genetic diversity and population structure of 90 specimens of Oxynoemacheilus argyrogramma collected from Sepidbarg, Gamasiab and Ghaleji rivers, in the west of Iran. Analyses using three microsatellite loci indicated that the average number of alleles in the population was 12, which was well above the reported values for freshwater fishes. The expe...
How rapidly can two populations diverge when exposed to different selection pressures? And what mechanisms contribute to rapid population divergence? A remarkable new study by Badyaev et al. of house finches Carpodacus mexicanus suggests that simultaneous maternal adjustment of offspring sex ratio and growth rates has played an important role in rapid population differentiation associated with ...
The rapid advance of sequencing technology, coupled with improvements in molecular methods for obtaining genetic data from ancient sources, holds the promise of producing a wealth of genomic data from time-separated individuals. However, the population-genetic properties of time-structured samples have not been extensively explored. Here, we consider the implications of temporal sampling for an...
Objectives: The individual consent of couples in most marital areas is affected by their communication patterns. The present study aimed to investigate the mediating role of communication patterns in the relationship between self- differentiation and sexual satisfaction of couples. Materials and Methods: The research method is a descriptive correlational study. The statistical population of th...
Background and Aim: Many nurses are involved in work-family conflict due to the nature of the nursing profession and overwork; investigating the factors related to work-family conflict can help reduce or control this conflict. Compassion fatigue and moral distress are some of the factors that may affect the work-family conflict of nurses. The purpose of this study was to determine the mediatory...
We have evaluated the extent to which SNPs identified by genomewide surveys as showing unusually high levels of population differentiation in humans have experienced recent positive selection, starting from a set of 32 nonsynonymous SNPs in 27 genes highlighted by the HapMap1 project. These SNPs were genotyped again in the HapMap samples and in the Human Genome Diversity Project-Centre d'Etude ...
Background: It is still controversial that the stem cells isolated from human dental pulp meets the criteria for mesenchymal stem cells (MSCs). The aim of the present study was to examine whether or not they are MSCs, or are distinct stem cells population residing in tooth pulp. Methods: Adherent fibroblastic cells in the culture of pulp tissue from human third molars were propagated through se...
Introduction: Relationship and sexual satisfaction act as an emotional barometer in couple relationships So that it can reflect couples' satisfaction with other aspects of their marriage, The purpose of this study was to design a model for predicting sexual satisfaction based on sexual schemes and their differentiation in couples. Methods: The present study was a descriptive-correlational res...
Introduction: Relationship and sexual satisfaction act as an emotional barometer in couple relationships So that it can reflect couples' satisfaction with other aspects of their marriage, The purpose of this study was to design a model for predicting sexual satisfaction based on sexual schemes and their differentiation in couples. Methods: The present study was a descriptive-correlational res...
Objective: The present study was conducted to predict problem-solving styles based on the dimensions of self-differentiation in substance-dependent individuals. Method: This research was of descriptive-correlational type, and its statistical population included substance-dependent males and females who referred to the addiction treatment centers in the city of Arak in 2020. The study sample con...
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