Results 141 to 150 of about 1,124,248 (284)
The unbearable (financial) burdens of parenting
The British Journal of Sociology, EarlyView.
Alya Guseva
wiley +1 more source
Andrology, EarlyView.ABSTRACT Background Since the 1990s, declining sperm counts and increasing testicular cancer rates have raised worldwide concern about male reproductive health, including in Denmark. This prompted a prospective population‐based study with annual surveillance of semen quality.
Lærke Priskorn +13 more
wiley +1 more source
Sperm competition experiments reveal low prezygotic postmating isolation between parasitic and nonparasitic lamprey ecotypes. [PDF]
Ecol Evol, 2023 Decanter N +5 more
europepmc +1 more source
, 2011 1. Polyandry is common in insects. Nevertheless, the evolutionary causes and consequences of this phenomenon remain contentious, in part because of a lack of information about natural mating rates and the fact that most post-copulatory processes are ...
Bussiere, Luc +7 more
core +1 more source
6‐Nitrodopamine as a Novel Mediator of Prostatic Smooth Muscle Function in Mouse and Human
Andrology, EarlyView.ABSTRACT Background Epithelium‐derived catecholamines contribute to local regulation of genitourinary smooth muscle function, but the role of the endogenous 6‐nitrodopamine (6‐ND) in the prostate remains unknown. Objectives To determine whether 6‐ND is produced by mouse and human prostate and its role in smooth muscle regulation.
Alline Araujo Curiel +12 more
wiley +1 more source
Sperm Competition in Fish [PDF]
, 2008 Sperm competition, the contest between sperm from rival males for fertilizations, is an important evolutionary force shaping sperm characteristics. Theory predicts that males experiencing elevated levels of sperm competition will invest more in sperm ...
Fitzpatrick, John L.
core +1 more source
Sperm competition in yellow dung flies: No consistent effect of sperm size. [PDF]
J Evol Biol, 2022 Laugen AT +7 more
europepmc +1 more source
The Need for a Global Registry for Charting the Natural History of Klinefelter Syndrome
Andrology, EarlyView.ABSTRACT Background Although Klinefelter Syndrome (KS) represents the most common sex chromosome aneuploidy, several gaps in knowledge persist regarding optimal management of individuals with this condition. Individuals with KS can have a diverse phenotype including endocrine, neurodevelopmental, and cardiovascular manifestations.
Malika Alimussina +13 more
wiley +1 more source
Sperm tendency to agglutinate in motile bundles in relation to sperm competition and fertility duration in chickens. [PDF]
Sci Rep, 2022 Sayed MAM +4 more
europepmc +1 more source
Shaping Future Children, Sex Selection, and “Normal” Human Capacities
Bioethics, EarlyView.ABSTRACT If we think that parents have an obligation to have a healthy child then we need to know what counts as healthy, when male and female children are born with very different capacities. If we give up on the idea that our obligations to use technologies of genetic selection are discharged once we try to secure the birth of a healthy child, as ...
Robert Sparrow
wiley +1 more source