Results 151 to 160 of about 193,040 (347)

Large Igneous Provinces (LIPs) and Anoxia Events in “The Boring Billion”

open access: yesGeophysical Monograph Series, Page 449-486., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Shuan‐Hong Zhang   +4 more
wiley  

+2 more sources

Evidence for decreasing quality of semen during past 50 years.

open access: yesBritish medical journal, 1992
E. Carlsen   +3 more
semanticscholar   +1 more source

Comparative efficacy of varicocelectomy and intrauterine insemination in varicocoele patients with mild semen abnormalities: An observational study

open access: yesAndrology, EarlyView.
Abstract Background Varicocoele is a common cause of male infertility, affecting spermatogenesis through increased testicular temperature, venous stasis, and oxidative stress. Microsurgical subinguinal varicocelectomy improves semen quality, whereas intrauterine insemination is widely used for mild male factor infertility.
Yanlin Ma   +8 more
wiley   +1 more source

Eficiência a campo do sêmen suíno congelado. [PDF]

open access: yes, 2015
bitstream/item/59160/1/CUsersPiazzonDocuments46 ...
FREITAS, A. R. de   +3 more
core   +1 more source

Características biológicas e congelabilidade do sêmen de carneiros Ideal-Polwath ao longo do ano

open access: green, 2003
María Inés Lênz Souza   +3 more
openalex   +2 more sources

Detection of germ cell neoplasia in situ and testicular cancer risk in men with testicular microlithiasis: Real world results through 10 years

open access: yesAndrology, EarlyView.
Abstract Background Guidelines recommend biopsies for men <50 years with testicular microlithiasis and cancer risk factors to rule out germ cell neoplasia in situ. Limited data support this practice. Objectives To clarify the significance of testicular microlithiasis by examining pathological findings in men with testicular microlithiasis.
Karoline Skov Lundager   +7 more
wiley   +1 more source

Avaliação da qualidade do sêmen de tilápia-do-Nilo (Oreochromis niloticus), linhagem chitralada, suplementada com diferentes concentrações de vitamina C

open access: yesBoletim do Instituto de Pesca, 2018
Neste estudo avaliou-se o efeito da suplementação de 0; 75; 150; 225; e 300 mg de vitamina C/kg de ração na qualidade do sêmen de tilápia-do-nilo (Oreochromis niloticus).
Marcela Mataveli   +7 more
doaj  

Taxa de prenhez de vacas nelores submetidas a protocolos de IATF no Pantanal de MS. [PDF]

open access: yes, 2017
Devido à baixa eficiência reprodutiva observada nos rebanhos brasileiros, é primordial desenvolver formas de conhecer,de controlar e de melhorar os principais índices reprodutivos (taxa de prenhez, índice de serviço, intervalo entre partos, taxa de ...
BATISTOTE, E.   +4 more
core  

Cryptorchidism: Novel genetic insights into CCDC149 mutations

open access: yesAndrology, EarlyView.
Abstract Background Cryptorchidism, characterized by the failure of one or both testes to descend into the scrotum, is a common congenital condition that can lead to infertility and increased risk of testicular cancer. CCDC149, a coiled‐coil domain‐containing protein, has been implicated in various developmental processes, but its role in the male ...
Shengrong Du   +8 more
wiley   +1 more source

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