Results 121 to 130 of about 712,118 (311)

Do partial AZFc deletions affect the sperm retrieval rate in non-mosaic Klinefelter patients undergoing microdissection testicular sperm extraction?

open access: yesBMC Urology, 2020
Background The purpose of this study is to evaluate the prognostic factors for sperm retrieval and determine if Y chromosome deletion is associated with deleterious effects on spermatogenesis in non-mosaic Klinefelter patients.
I-Shen Huang   +8 more
doaj   +1 more source

Fertility in men with spinal cord injury [PDF]

open access: yes, 2016
Young men comprise the overwhelming majority of men with spinal cord injury (SCI), the incidence of which has been growing over the years. Due to advances in physical medicine and rehabilitation, remarkable improvements in survival rates have been ...
Grgić, Franjo   +5 more
core   +1 more source

The role of hormone stimulation in men with non-obstructive azoospermia undergoing surgical sperm retrieval.

open access: yesJournal of Clinical Endocrinology and Metabolism, 2020
Non obstructive azoospermia, (NOA) is the most common cause of azoospermia. NOA is characterised by hypergonadotrophic hypogonadism, testicular failure, and impaired spermatogenesis.
T. Tharakan   +5 more
semanticscholar   +1 more source

Multiple Roles of Protamine Kinase SRPK1 and Phosphatase PP1γ in Sperm Development

open access: yesPROTEOMICS, EarlyView.
ABSTRACT Protein phosphorylation regulates key events of male germ cell differentiation. In the testis, SRPK1 and PP1γ are involved in protamine phosphorylation and dephosphorylation, respectively, and their deregulation is linked to defective chromatin structure and male infertility.
Alberto de la Iglesia   +7 more
wiley   +1 more source

Sperm cryopreservation protocol for micro-TESE-retrieved sperm

open access: yesAsian Journal of Andrology
Abstract Azoospermia is characterized by the absence of sperm in the ejaculate and is categorized into obstructive azoospermia (OA) and nonobstructive azoospermia (NOA). For men with NOA, testicular sperm extraction (TESE) is the only method to obtain sperm for assisted reproductive technology (ART).
Mangoli, Vijay   +2 more
openaire   +4 more sources

The scale matters: A review on stimuli‐responsive microrobots categorized by scale for biomedical applications

open access: yesResponsive Materials, EarlyView.
We systematically summarize how each scale dictates fundamental choices in design feature, manufacturing technology, driving mechanism, and control strategy, which are inherently governed by scale‐dominated physical principles. Furthermore, the application of scale‐determined operation modes of microrobots across different stages of medical ...
Hang Yin   +3 more
wiley   +1 more source

Rhyming in the cold: first evidence of soniferous fishes in the Southern Ocean

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
The acoustic ecology of Southern Ocean fishes remains unknown due to a lack of dedicated acoustic research on the fishes of this ocean. Passive acoustic monitoring data were collected at the South African sub‐Antarctic Prince Edward Islands using an underwater acoustic recorder, and towed underwater Ski‐Monkey cameras were deployed to identify fish ...
Fannie W. Shabangu   +5 more
wiley   +1 more source

Can Testicular Size Be a Predictive Factor for Successful Sperm Retrieval in Patients with Non Obstructive Azoospermia?

open access: yesGynecology Obstetrics & Reproductive Medicine, 2019
Objective: Non-obstructive azoospermia, defined as absence of spermatozoa in the ejaculate caused by impaired spermatogenesis, is the most severe cause of male infertility.
Omer yumusak   +5 more
doaj   +1 more source

Spartan Daily, April 12, 2005 [PDF]

open access: yes, 2005
Volume 124, Issue 46https://scholarworks.sjsu.edu/spartandaily/10118/thumbnail ...
San Jose State University, School of Journalism and Mass Communications
core   +1 more source

Walking across Wikipedia: a scale-free network model of semantic memory retrieval. [PDF]

open access: yes, 2014
Semantic knowledge has been investigated using both online and offline methods. One common online method is category recall, in which members of a semantic category like "animals" are retrieved in a given period of time.
Kello, Christopher T, Thompson, Graham W
core   +2 more sources

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