Results 71 to 80 of about 17,704 (256)
Is prolactin involved in sperm capacitation?
, 1979 Immunoreactive prolactin in high concentration was detected in the human semen. Therefore, the effect of prolactin on the various metabolic parameters of the human spermatozoa was studied. It was found that prolactin brought about many of the biochemical
Sheth, A. R., Shah, G. V.
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Journal of the Royal Anthropological Institute, EarlyView.Contemporary artificial intelligence (AI) technologies are often presumed to be capable of revealing unmediated truths about the world, including the truths language might hold, echoing the long‐standing assertion that language's primary function is to directly translate reality.
Beth M. Semel
wiley +1 more source
Journal of the Royal Anthropological Institute, EarlyView.The Eastern Mediterranean lies directly on the principal migration route for human groups dispersing across Africa, Europe, and Asia. It also encompasses the Balkans, where fauna and flora, as well as hominin populations, are thought to have persisted through glacial periods.
Katerina Harvati
wiley +1 more source
Regulation of Sperm Capacitation and the Acrosome Reaction by PIP 2 and Actin Modulation
Asian Journal of Andrology, 2015 Actin polymerization and development of hyperactivated (HA) motility are two processes that take place during sperm capacitation. Actin polymerization occurs during capacitation and prior to the acrosome reaction, fast F-actin breakdown takes place.
Haim Breitbart, Maya Finkelstein
doaj +1 more source
Proteins implicated in sperm capacitation
, 2005 1001-1015Spermatozoa after being deposited in the female reproductive tract spend a considerable time in this foreign environment prior to fertilization of the oocyte.
Mitra, Kasturi, Shivaji, S
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Journal of the Royal Anthropological Institute, EarlyView.This article presents a synthesis of recent developments in the study of human evolution over the past five years. It begins with an overview of hominin species nomenclature and diversity, followed by an examination of the proposed population bottleneck ∼900,000 years ago.
James Cole +3 more
wiley +1 more source
Effect of capacitation on the endocannabinoid system of mouse sperm
, 2011 The presence of the elements of the endocannabinoid system (ECS) in sperm isolated from several species (from invertebrates to mammals, humans included) has supported the ‘‘evolutionary theory’’ that proposes endocannabinoids as check points in ...
Rossi G +7 more
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EuroChoices, EarlyView.Summary Modernising the European Union’s plant variety registration system is critical to enabling the development and adoption of sustainable, climate‐resilient varieties aligned with the EU Farm‐to‐Fork Strategy. However, the current system is outdated and under increasing pressure. While legislative reform is underway, key points of divergence among
Sergio Urioste Daza +2 more
wiley +1 more source
Fluorescent analysis of boar sperm capacitation process in vitro
Reproductive Biology and Endocrinology, 2019 Background Capacitation involves physiological changes that spermatozoa must undergo in the female reproductive tract or in vitro to obtain the ability to bind, penetrate and fertilize the egg.
Lukas Ded +5 more
doaj +1 more source
, 2015 Immediately after ejaculation, mammalian spermatozoa are unable to fertilize the homologous oocyte. They reach their fertilizing ability only after they reside for hours to days, depending on the species, within the female genital tract.
BARBONI, Barbara +4 more
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