Results 1 to 10 of about 150,822 (267)

Fertility trends by social status [PDF]

open access: yes
This article discusses how fertility relates to social status with the use of a new dataset, several times larger than the ones used so far. The status-fertility relation is investigated over several centuries, across world regions and by the type of ...
Vegard Skirbekk
core  

Islamic inheritance law, son preference and fertility behavior of Muslim couples in Indonesia [PDF]

open access: yes
This paper examines whether the son preference and fertility behavior of Muslim couples respond to the risk of inheritance expropriation by their extended family. According to traditional Islamic inheritance principles, only the son of a deceased man can
Carranza, Eliana
core  

Genome-Wide Association Study of Haploid Female Fertility (HFF) and Haploid Male Fertility (HMF) in BS39-Derived Doubled Haploid Lines

open access: yes
Doubled haploid (DH) breeding accelerates the development of elite inbred lines and facilitates the incorporation of exotic germplasm, offering a powerful tool for maize improvement.
Fakude, Mercy   +4 more
core  

Comparative Advantage, International Trade, and Fertility [PDF]

open access: yes
We analyze theoretically and empirically the impact of comparative advantage in international trade on fertility. We build a model in which industries differ in the extent to which they use female relative to male labor, and countries are characterized ...
Andrei A. Levchenko   +2 more
core  

Higher Education, the Bane of Fertility? An investigation with the HILDA Survey [PDF]

open access: yes
This paper uses the first wave of HILDA in an analysis of the determinants of fertility, focusing in particular on the role of education. Estimating lifetime fertility from micro data sets is generally quite difficult since a large proportion of the ...
Peng Yu
core  

Major depression, antidepressant use, and male and female fertility

open access: yes, 2018
To determine if maternal major depression (MD), antidepressant use, or paternal MD are associated with pregnancy outcomes after non-IVF fertility treatments. Cohort study. Clinics.
Hansen, Karl R   +13 more
core   +1 more source

Semen parameters, fertility and testosterone levels in male rats exposed prenatally to betamethasone

open access: yes, 2009
The present study investigated the long-term effects of prenatal betamethasone exposure on sperm quality and count, fertility and plasma testosterone levels in adult male rats.
Pereira, Oduvaldo C. M. [UNESP]   +9 more
core   +1 more source

Genetic variation of metabolite and hormone concentration in UK Holstein-Friesian calves and the genetic relationship with economically important traits

open access: yes, 2009
The decline of dairy cattle fertility worldwide remains a major concern, with conception rates to first service commonly below 40%. The length and severity of negative energy balance postpartum are unfavorably correlated with fertility, suggesting that ...
Woolliams, J A   +4 more
core   +1 more source

The Fertility Pattern of Twins and the General Population Compared: Evidence from Danish Cohorts 1945-64 [PDF]

open access: yes
Twin studies provide an important possibility for demographers to analyze patterns of heritability and to estimate structural models with controls for endowments. These possibilities are increasingly used in the context of fertility and related behaviors.
Hans-Peter Kohler   +3 more
core  

Comparative analysis of fertility restoration genes for WA, Y, and DA cytoplasmic male sterility in rice

open access: yes, 2014
Rice chromosome single segment substitution line (SSSL) W23-19-06-06-11 with the genotype Rf3Rf3/Rf4Rf4, a strong restorer line for wild-abortive (WA) cytoplasmic male sterility (CMS), was recently identified from the SSSL library.
H. T. Zhu   +6 more
core   +1 more source

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