نتایج جستجو برای: reproductive behaviors
تعداد نتایج: 220637 فیلتر نتایج به سال:
Abstract Introduction: Social capital has potential effects on reproductive health and childbearing behaviors. However, there is limited information about its relationship with childbearing. Objective: This study aimed to explore female healthcare providers' experiences of childbearing based on the social capital theory. Materials and Methods: This qualitative study was conducted from July ...
Title: REPRODUCTIVE POTENTIAL WITHIN THE LANDSCAPE: A SPATIALLY-EXPLICIT, AGENT-BASED MODEL OF ASYNCHRONY Christopher Roland Guenther, Master of Science, 2005 Directed By: Professor William F. Fagan, Department of Biology Reproductive asynchrony, which can be a beneficial life-history strategy in healthy insect populations, may contribute to an Allee effect at small population densities. A spat...
The term 'assortative mating' has been applied to describe two very different phenomena: (1) the tendency for individuals to choose phenotypically similar mates from among conspecifics; or (2) the tendency to prefer conspecific over heterospecific mates (behavioral reproductive isolation). Both forms of assortative mating are widespread in nature, but the relationship between these behaviors re...
The reproductive behavior of Uca spp. has been extensively studied, especially the relationships between the dimorphically enlarged male claw and reproductive success. In contrast, little is known about the apparent congregations of adult males in marsh areas lacking vegetative cover where they engage in behaviors thought to attract mates. Similar congregations and displays in avian and mammali...
Semelparous Pacific salmon (Onchorynchus spp.) serve as an excellent model for examining the relationships between life history, behavior and individual variation in glucocorticoid (GC) stress hormone levels because reproductive behaviors are highly variable between individuals and failure to reproduce results in zero fitness. Pink salmon (O. gorbuscha) were intercepted upon arrival at the spaw...
A set of linked reproductive histories taken from Sweden, the Netherlands and Spain for the period 1871-1960 is used to address key issues regarding reproductive change and reproductive choice. Using event history analysis the paper investigates how the hazard of additional births was influenced by childhood mortality and the sex-composition among the surviving children when the reproductive de...
Anthropology is concerned with description and interpretation of various aspects of social life it is an attempt to understand and assess the origin of different social phenomena. In this research we have studied the abortion beliefs and behaviors of women in reproductive age, and we also tried to explain how these beliefs and behaviors were changing with time. Considering the in-depth nature o...
background: this paper aims to examine the reproductive health and behaviors which might expose young people at risks of stis/hiv and potential correlates of such behaviors among female college students in tehran. methods: this paper focuses on the study conducted on a sample of 1743 female undergraduate students in four multidisciplinary universities in tehran during 2005-2006 using a two-stag...
Hispanic students are the fastest growing minority population on U.S. college campuses. The purpose of this study was to examine differences in the sexual and reproductive health behaviors and outcomes between Hispanic and nonHispanic White college students. Analyses utilized data from 15,518 nonmarried undergraduates (aged 18-24 years) responding to the Fall 2009 American College Health Associ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید