Browsing by Subject "Fertility"
Now showing items 1-16 of 16
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An Empirical Analysis of Life Cycle Fertility and Female Labor Supply
(1988)This paper examines household fertility and female labor supply over the life cycle. We investigate how maternal time inputs, market expenditures on offspring, as well as the benefits they yield their parents, vary with ... -
Carrots and sticks: fertility effects of China's population policies.
For 20 years following 1949, average total fertility per woman in China hovered just above six children. The year 1970 marked the beginning of persistent fertility declines. By 1980, the rate had dropped to 2.75, and since ... -
Constant mortality and fertility over age in Hydra.
(Proc Natl Acad Sci U S A, 2015-12-22)Senescence, the increase in mortality and decline in fertility with age after maturity, was thought to be inevitable for all multicellular species capable of repeated breeding. Recent theoretical advances and compilations ... -
Determinants of Teenage Childbearing in the United States
(2015)This dissertation consists of two original empirical studies on the determinants of teenage childbearing in the United States. The first study examines the impact of educational attainment on teenage childbearing, using ... -
Diversity of ageing across the tree of life.
(Nature, 2014-01-09)Evolution drives, and is driven by, demography. A genotype moulds its phenotype's age patterns of mortality and fertility in an environment; these two patterns in turn determine the genotype's fitness in that environment. ... -
Evolution. Getting to the root of aging.
(Science, 2012-11-02) -
Family Formation and Equilibrium Influences
(2009)This dissertation considers incentives arising from equilibrium influences that affect the sequence of decisions that lead to family formation. The first chapter examines how state regulations directly aimed at abortion ... -
Low demographic variability in wild primate populations: fitness impacts of variation, covariation, and serial correlation in vital rates.
(Am Nat, 2011-01)In a stochastic environment, long-term fitness can be influenced by variation, covariation, and serial correlation in vital rates (survival and fertility). Yet no study of an animal population has parsed the contributions ... -
Methodologic and statistical approaches to studying human fertility and environmental exposure.
(Environ Health Perspect, 2004-01)Although there has been growing concern about the effects of environmental exposures on human fertility, standard epidemiologic study designs may not collect sufficient data to identify subtle effects while properly adjusting ... -
Phytochemical mimicry of reproductive hormones and modulation of herbivore fertility by phytoestrogens.
(Environmental health perspectives, 1988-06)Plants have physical and chemical mechanisms for defense from attack by animals. Phytochemical defenses that protect plants from attack by insects include antifeedants, insecticides, and insect growth regulators. Phytochemical ... -
Priorities for family building among patients and partners seeking treatment for infertility.
(Reprod Health, 2017-04-05)BACKGROUND: Infertility treatment decisions require people to balance multiple priorities. Within couples, partners must also negotiate priorities with one another. In this study, we assessed the family-building priorities ... -
Rapid behavioral and genomic responses to social opportunity.
(PLoS Biol, 2005-11)From primates to bees, social status regulates reproduction. In the cichlid fish Astatotilapia (Haplochromis) burtoni, subordinate males have reduced fertility and must become dominant to reproduce. This increase in sexual ... -
Reduced prostate branching morphogenesis in stromal fibroblast, but not in epithelial, estrogen receptor α knockout mice.
(Asian journal of andrology, 2012-07)Early studies suggested that estrogen receptor alpha (ERα) is involved in estrogen-mediated imprinting effects in prostate development. We recently reported a more complete ERα knockout (KO) mouse model via mating β-actin ... -
Studying human fertility and environmental exposures.
(Environ Health Perspect, 2004-08) -
Too much time? Time use and fertility-specific quality of life among men and women seeking specialty care for infertility.
(BMC psychology, 2019-07-09)BACKGROUND:There are known gender differences in the impacts infertility has on quality of life and well-being. Less is known about how infertile couples spend time on fertility-related tasks and associations with quality ... -
Where Should Babies Come From? Measuring Schemas of Fertility and Family Formation Using Novel Theory and Methods
(2013)Current theories of marriage and family formation behavior tend to rely on the assumption that people can and do consciously plan both fertility and marriage and post-hoc intentions should align with a priori reasons for ...
