Results 151 to 160 of about 726,910 (390)

Use of endocrine and immune responses as predictors of bull sperm motility [PDF]

open access: yes, 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

Surgical Procedure of Lateral Lymph Node Dissection for Advanced Lower Rectal Cancer

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
Lateral lymph node dissection (LLND) is an effective surgical approach for lower rectal cancer. This paper outlines key points from the Japan Society of Gastroenterological Surgery consensus meeting, including standardized LLND techniques and procedural highlights.
Mamoru Uemura   +9 more
wiley   +1 more source

Major regulatory mechanisms involved in sperm motility

open access: yesAsian Journal of Andrology, 2015
The genetic bases and molecular mechanisms involved in the assembly and function of the flagellum components as well as in the regulation of the flagellar movement are not fully understood, especially in humans.
R. Pereira, R. Sá, A. Barros, M. Sousa
semanticscholar   +1 more source

Contribution of Bacterial Infection to Male Infertility in Nigerians [PDF]

open access: yes, 2009
There is disagreement as to the influence of certain microbial infection on male infertility and such agents are ignored. The incidence of these microbial agents in seminal fluid isolates is on the increase.
Emokpae, MA, Sadiq, NM, Uadia, PO
core   +1 more source

Design, Control, and Clinical Applications of Magnetic Actuation Systems: Challenges and Opportunities

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This review aims to provide a broad understanding for interdisciplinary researchers in engineering and clinical applications. It addresses the development and control of magnetic actuation systems (MASs) in clinical surgeries and their revolutionary effects in multiple clinical applications.
Yingxin Huo   +3 more
wiley   +1 more source

Is sperm morphology functionally related to sperm swimming ability? A case study in a wild passerine bird with male hierarchies

open access: yesBMC Evolutionary Biology, 2018
Background Sexual selection continues after copulation via either sperm competition or cryptic female choice, and favors sperm traits that maximize sperm competitiveness.
Alfonso Rojas Mora   +3 more
doaj   +1 more source

Human sperm rheotaxis: a passive physical process

open access: yesScientific Reports, 2016
A long-standing question in natural reproduction is how mammalian sperm navigate inside female reproductive tract and finally reach the egg cell, or oocyte. Recently, fluid flow was proposed as a long–range guidance cue for sperm navigation.
Zhuoran Zhang   +6 more
semanticscholar   +1 more source

Regulating Sperm Donation: Why Requiring Exposed Donation Is Not the Answer [PDF]

open access: yes, 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

Sperm competition [PDF]

open access: yesCurrent Biology, 2004
Wigby, Stuart, Chapman, Tracey
openaire   +5 more sources

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