Results 101 to 110 of about 566,665 (344)
Fertility outcome of patients with testicular tumor: before and after treatment
Asian Journal of Andrology, 2014 Testicular cancer (TC) is the most curable type of cancer, with a survival rate of more than 95%. Oncologists are faced with the challenge that gonadotoxic cancer treatments can compromise future fertility, either temporarily or permanently.
Ping Ping +4 more
doaj +1 more source
Low-Cost QCM Sensor System for Screening Semen Samples [PDF]
, 2010 Artificial insemination is a well-established part of modern agricultural practice. A viable semen sample is judged by the total number of spermatozoa (sperm) in the sample and the motility of the sperm.
Atherton, Shaun +6 more
core +2 more sources
Global Diversification Rates of Ferns Across Spatial and Climatic Gradients
Advanced Science, EarlyView.Diversification rates of fern genera across the phylogeny. Abstract Geographic patterns of diversity in any group of plants are the result of the interplay of environmental conditions and the evolutionary dynamics of the respective plant group. Here, the geographic distribution of current mean diversification rates (MDR) is explored at the genus level ...
Hong Qian, Michael Kessler, Shenhua Qian
wiley +1 more source
Advanced Science, EarlyView.Genome‐wide, high‐resolution profiling of hydroxymethylation in mouse SCNT embryos reveals a transient, allele‐symmetric 5hmC reprogramming pattern distinct from natural embryos, with X‐chromosomes and imprinting control regions resistant to proper remodeling.
Zeming Xiang +9 more
wiley +1 more source
A Noninvasive Method For In situ Determination of Mating Success in Female American Lobsters (Homarus americanus) [PDF]
, 1992 Despite being one of the most productive fisheries in the Northwest Atlantic, much remains unknown about the natural reproductive dynamics of American lobsters.
Watson, Winsor H., III +3 more
core +95 more sources
Ex Vivo Spatiotemporal Characterization of Spermatogenesis in Mouse Testicular Organoids
Advanced Science, EarlyView.To date, in vitro spermatogenesis remains a challenge in reproductive medicine. In this study, Sun et al. developed a promising in vitro strategy to generate testicular organoids that enable germ cells from newborn mice to enter meiosis, complete chromosome recombination and synapsis, and develop into haploid spermatids.
Jiachen Sun +9 more
wiley +1 more source
Contribution of Bacterial Infection to Male Infertility in Nigerians [PDF]
, 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
DNA demethylation by ROS1a in rice vegetative cells promotes methylation in sperm. [PDF]
, 2019 Epigenetic reprogramming is required for proper regulation of gene expression in eukaryotic organisms. In Arabidopsis, active DNA demethylation is crucial for seed viability, pollen function, and successful reproduction. The DEMETER (DME) DNA glycosylase
Fischer, Robert L +6 more
core +2 more sources
Proceedings of the National Academy of Sciences, 2006 When females are sexually promiscuous, the ejaculates of different males may compete for the fertilization of a set of ova, a process known as sperm competition. In internally fertilizing species, potential for sperm competition occurs whenever the ejaculates of different males cooccur in the female reproductive tract at the time of ovulation.
openaire +2 more sources
Advanced Science, EarlyView.BRIGHT is a newly developed live‐cell imaging system that integrates cascade amplification with background denoising through the bivalent binding capability and antigen‐dependent stability of a bivalent fluorescent nanobody targeting ALFA peptides.
Lei Feng +9 more
wiley +1 more source