Results 91 to 100 of about 439,964 (240)
Superior sperm competitors sire higher-quality young [PDF]
, 2003 The evolution of polyandry remains controversial. This is because, unlike males, in many cases multiple mating by females does not increase fecundity and inevitably involves some costs.
Garner, T.W.J. +4 more
core +3 more sources
American Journal of Medical Genetics Part A, EarlyView.ABSTRACT This study aims to elucidate the role of the ZSWIM7 gene in the etiology of infertility, focusing on its potential association with premature ovarian insufficiency and azoospermia. We investigated an 18‐year‐old female patient who presented with primary amenorrhea, hypoplasia of the uterus and ovaries, Tanner stage II breast and pubic hair ...
Denise M. Christofolini +8 more
wiley +1 more source
Australian Journal of Social Issues, EarlyView.Abstract Non‐binary and genderqueer identities are increasingly discussed in public discourse and academia, but there remains a dearth of academic literature centred on non‐binary people's lives and experiences. When non‐binary people are included in research, it is frequently as an additive to explorations of trans identities and subsumed under the ...
Lucy Nicholas, Sal Clark, Chloe Falzon
wiley +1 more source
Use of endocrine and immune responses as predictors of bull sperm motility [PDF]
, 2015 Research has shown that peripheral blood cell populations change in response to an immune challenge, and hormone concentrations directly affect sperm characteristics.
Looper, Michael +3 more
core +2 more sources
Progesterone significantly enhances the mobility of boar spermatozoa [PDF]
, 2013 Progesterone released from the cumulus cells of the oocyte causes a number of physiological responses in human sperm cells including hyperactivation, acrosome reaction and chemotaxis. We employed a validated sperm mobility assay, which involves measuring
Adya, Ashok K. +6 more
core +3 more sources
Laser‐Patterned Diamond Electrodes for Adhesion and Proliferation of Human Mesenchymal Stem Cells
Advanced NanoBiomed Research, EarlyView.Laser patterning is used to create diamond electrodes on insulating diamond substrates. The process yields conductive surfaces with high capacitance, wide water windows, and low impedance. The electrode‐enhancing human mesenchymal stem cell adhesion and growth are nontoxic and promote cell alignment.
Hassan N. Al Hashem +9 more
wiley +1 more source
Potassium ion influx and Na+,K+-ATPase activity are required for the hamster sperm acrosome reaction. [PDF]
, 1981 The role of a K+ ion influx and Na+,K+-ATPase activity in the hamster sperm acrosome reaction (AR) was examined, using a range of concentrations of K+,K+ ionophores and a Na+,K+-ATPase inhibitor.
Meizel, S, Mrsny, RJ
core
Regulating Sperm Donation: Why Requiring Exposed Donation Is Not the Answer [PDF]
, 2009 [...] the risk of incest and consanguinity11 are prevalent with anonymous donation12 since there is no monitoring of the number of live births per donor.
Pi, Vanessa L.
core +1 more source
Predicting ecology and hearing sensitivities in Parapontoporia—An extinct long‐snouted dolphin
The Anatomical Record, EarlyView.Abstract Analyses of the cetacean (whale and dolphin) inner ear provide glimpses into the ecology and evolution of extinct and extant groups. The paleoecology of the long‐snouted odontocete (toothed whale) group, Parapontoporia, is primarily marine with its depositional context also suggesting freshwater tolerance.
Joyce Sanks, Rachel Racicot
wiley +1 more source