Results 131 to 140 of about 3,961,344 (359)
Does sex-ratio indicate the extent of male preference?: A quest for better indicator [PDF]
This paper shows that the use of sex-ratio as an indicator of preference for male is not an appropriate selection, as sex-ratio also depends up on fertility rate in any society.
Singh, Indervir, Singh, Sarbjit
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Morogoro Regional and District Projections [PDF]
, 2006 \ud This report presents population projections for the period 2003 to 2025 for the Morogoro Region and its districts. The projections were made using a Cohort Component Method (Spectrum System), whereby three components responsible for population change,
Aboud, Said +9 more
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Frequency-dependent and correlational selection pressures have conflicting consequences for assortative mating in a color-polymorphic lizard, Uta stansburiana [PDF]
, 2014 Acknowledgments We would like to thank the numerous undergraduate researchers involved with this project for their invaluable assistance in lizard rearing and data collection. We also thank D. Haisten, A. Runemark, Y. Takahashi, and M.
Hipsley, Christy A +3 more
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Endothelial PDGF Signaling Dysregulation Impairs Testicular Interstitial Homeostasis in Diabetes
Advanced Science, EarlyView.Testicular endothelial cells (TECs) function as central signaling hubs that coordinate interstitial homeostasis. Diabetes disrupts TEC‐derived PDGF signaling, silences the JUND‐MCL1 survival program in Leydig cells, and impairs peritubular function, leading to fibrosis and testosterone insufficiency.
Wenxiu Zhang +14 more
wiley +1 more source
The Career Costs of Children [PDF]
This paper analyzes the life-cycle career costs associated with child rearing and decomposes their effects into unearned wages (as women drop out of the labor market), loss of human capital, and selection into more child-friendly occupations. We estimate
Adda, Jérôme +2 more
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Adult Sex Ratio as a Demographic Feedback Linking Mating Systems, Parental Care, and Evolution
Advanced Science, EarlyView.Breeding systems are some of the most diverse social behavior, and our team is investigation the evolutionary causes of this diversity. This review summarises our research carried out at the University of Bath. We argue that demographic components of wild populations, especially the adult sex ratio, plays a key role driving breeding system variation ...
Tamás Székely, Oscar G. Miranda
wiley +1 more source
Agribusiness, EarlyView.Abstract Nucleus outgrower schemes are contractual arrangements where well‐resourced large‐scale farmers (nucleus farmers) are empowered by development support agencies to take charge of smallholder farmers, by providing them with market access and the necessary training on agronomic practices and farm inputs for production.
Dominic Tasila Konja, Awudu Abdulai
wiley +1 more source
Sport, doping and male fertility
Reproductive Biology and Endocrinology, 2018 It is universally accepted that lifestyle interventions are the first step towards a good overall, reproductive and sexual health. Cessation of unhealthy habits, such as tobacco, alcohol and drug use, poor nutrition and sedentary behavior, is suggested ...
Andrea Sansone +7 more
doaj +1 more source
Religious affiliation, religiosity, and male and female fertility [PDF]
Religious studies of fertility typically focus on the effect of religious affiliation on fertility; the role of religiosity in determining fertility remains overlooked.
Li Zhang
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Kagera Regional and District Projections [PDF]
, 2006 This report presents population projections for the period 2003 to 2025 for the Kagera Region and its districts. The projections were made using a Cohort Component Method (Spectrum System), whereby three components responsible for population change ...
Aboud,, S.M. +9 more
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