Results 11 to 20 of about 285,253 (302)
, 2019 This module introduces equations related to oxygen diffusion in the context of understanding the relationship between oxygen needs and metabolism. It is intended for an introductory biology audience.
Gross, Lou +2 more
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Assessment of an iPad-based sperm motility analyzer for determination of canine sperm motility [PDF]
Translational Animal Science, 2021 Abstract The objective of this study was to evaluate the repeatability and accuracy of canine sperm motility (total and progressive) assessment with a tablet-based Canine iSperm instrument compared to computer-assisted sperm analysis (CASA).
Bulkeley, Evelyn +5 more
openaire +6 more sources
Signaling mechanisms in mammalian sperm motility [PDF]
Biology of Reproduction, 2016 Abstract The goal of sperm is to fertilize the oocyte. To achieve that purpose, it must acquire motility in the epididymis and hyperactivated motility in the female reproductive tract. Motility is only achieved when the sperm presents a fully functional flagellum, is capable of producing energy to fuel the movement, and suffers ...
Freitas, Maria João +2 more
openaire +5 more sources
Archives of Andrology, 1998 Within 40 s the Sperm Quality Analyzer (United Medical Systems, Santa Ana, CA, USA) provides a numerical value called the sperm motility index. This index reflects both the concentration of motile sperm cells and the intensity of their motility and cannot be determined by conventional semen analysis.
G, Schieferstein +2 more
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Size dependent inhibition of sperm motility by copper particles as a path towards reversible male contraception [PDF]
, 2021 Effective inhibition of sperm motility using a spermicide can be a promising approach in developing non-invasive male contraceptive agents. Copper is known to have contraceptive properties and has been used clinically for decades as intrauterine ...
Veronika, Magdanz +4 more
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Assessing coral sperm motility [PDF]
Scientific Reports, 2021 AbstractThe declining reproductive viability of corals threatens their ability to adapt to changing ocean conditions. It is vital that we monitor this viability quantitatively and comparatively. Computer-assisted sperm analysis (CASA) systems offer in-depth analysis used regularly for domestic and wildlife species, but not yet for coral.
Nikolas Zuchowicz +6 more
openaire +3 more sources
Evaluation of the in vitro effect of cystein on sperm quality of Çoruh trout (Salmo coruhensis)
Sustainable Aquatic Research, 2022 In this study, trials were conducted to assess the impact of cysteine addition to activation solution on sperm motility of Çoruh trout (Salmo coruhensis).
Filiz Kutluyer Kocabaş
doaj +1 more source
Cryopreservation of common carp sperm [PDF]
, 2003 Experiments were carried out to investigate the effect of five extenders (sucrose, glucose, fructose, KCl and a saline carp sperm extender) and two cryoprotectants (dimethyl-sulfoxide (DMSO) and methanol) on the cryopreservation of common carp sperm ...
Urbányi, Béla +5 more
core +1 more source
Computational Modelling of Sperm Behaviour in a 3D Virtual Oviduct [PDF]
, 2011 The processes by which individual sperm cells navigate the length and complexity of the female reproductive tract and then reach and fertilise the oocyte are fascinating. Numerous complex processes potentially influence the movement of spermatozoa within
Burkitt, Mark
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Plasma membrane Ca2+ ATPase 4 is required for sperm motility and male fertility [PDF]
, 2004 Calcium and Ca(2+)-dependent signals play a crucial role in sperm motility and mammalian fertilization, but the molecules and mechanisms underlying these Ca(2+)-dependent pathways are incompletely understood. Here we show that homozygous male mice with a
Knobeloch, Klaus-Peter +14 more
core +2 more sources