منابع مشابه
Hydrophobic silicone elastomer chamber for recording trajectories of motile porcine sperms without adsorption.
Motile porcine sperms adhere to hydrophilic materials such as glass and plastics. The adsorption of sperms to a hydrophobic poly(dimethylsiloxane) (PDMS) membrane is less compared with that to glass. We investigated the linear velocity (LV) and amplitude of lateral head displacement (ALHD) of motile porcine sperm on glass and PDMS preparations using computer-assisted sperm analysis (CASA). Sign...
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Introduction: Leukemia inhibitory factor is a secreted glycoprotein with a range of molecular weight forms, from 38-67kd, resulting from differential glycosylation of protein of approximately 20Kd. LIF has the four a helix cytokine structure that contains six cysteine residues, already known to occur in many hematopoietic factor. LIF is expressed at high constitutive in human fallopian tubal ep...
متن کاملExperiments on Mutations Induced by Neutrons in Drosophila Melanogaster Sperms.
WO somewhat puzzling phenomena have been reported in the literature T on neutron-induced lethals in Drosophila. NAGAI and LOCHER (1938), in the first work on this subject, kept the offspring of different neutron-treated males separate during the tests for sex-linked lethals and reported that the lethals were not distributed a t random among the offspring of different males. Two or more lethals ...
متن کاملMitochondria-driven cell elongation mechanism for competing sperms
Sexual competition has selected a number of extreme phenotypes like the tail ornament of peacock male. Sperm tail of Drosophilidae elongate up to 6 cm as a result of evolutionary selection for reproductive fitness among competing sperms. Sperm elongation takes place post meiotically and can proceed in the absence of an axoneme. Here, we used primary cultures of elongating spermatids of D. melan...
متن کاملAn Immersed Boundary-Lattice Boltzmann Method for Swimming Sperms
This work presents an immersed boundary–lattice Boltzmann method for free-swimming sperms in an incompressible viscous fluid. This method involves sperm model, fluid solver and fluid– structure interaction (FSI). The sperm is simplified as a nonlinear beam. To drive the swimming motion, an internal moment is introduced into the beam equation. The fluid dynamics is obtained by solving the lattic...
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ژورنال
عنوان ژورنال: Open Journal of Urology
سال: 2018
ISSN: 2160-5440,2160-5629
DOI: 10.4236/oju.2018.81004