Results 101 to 110 of about 17,704 (256)

Hyperactivation and Tyrosine Phosphorylation of Cryopreserved Stallion Spermatozoa in Relation to Conventional In Vitro Fertilization Blastocyst Production

Andrology, EarlyView.
ABSTRACT Background Challenges in establishing clinical conventional in vitro fertilization (IVF) in horses include variation in sperm and oocyte quality, which can be affected by mare age. Extended preincubation of stallion spermatozoa has resulted in successful IVF.
Raul A. Gonzalez‐Castro, Carolina C. Porflidt, Alexandra L. Ash, Jacobo S. Rodriguez, Perla D. Fleury, Edward L. Squires, Elaine M. Carnevale   +6 more
wiley   +1 more source

Cordycepin improves hyperactivation and acrosome reaction through adenosine receptors during human sperm capacitation in vitro

Reproductive Biology and Endocrinology
Background Sperm capacitation is a prerequisite for natural or in vitro fertilization. After capacitation, sperm become hyperactivated and undergo an acrosome reaction, which helps them penetrate the oocyte.
Lijun Shan, Linmei Gao, Yuhao Chai, Kun Li, Jianmin Yu, Fei Liang, Jiangfeng Qin, Ya Ni, Peibei Sun   +8 more
doaj   +1 more source

Policy Learning and Policy Development in Innovation Policy: Canada's Global Innovation Clusters Initiative

Canadian Public Administration, EarlyView.
Abstract This article argues that policy learning is essential for effective innovation policy. The ability to learn from past experiments in a reflexive fashion is a prerequisite for effective policy design. The article responds to the call for more applied research to compliment the theoretical framing of policy learning in the literature.
David A. Wolfe, Travis Southin
wiley   +1 more source

AI Revolution and Warfare: A New Paradigm Shifts in Defence Procurement, Restructuring, Training, and Recruitment

Canadian Public Administration, EarlyView.
Abstract The war in Ukraine and Israel's successful operations have demonstrated the apparent shift in military operations, strategic defence spending, and innovations. Drawing parallels to the industrial revolution and how it slowly transferred military procurement, training, and deployment, the current study also highlights the AI revolution and the ...
Ehsan Jozaghi
wiley   +1 more source

Establishment of Human Formative Pluripotent Stem Cell‐Like Cells Exhibiting Amniotic Differentiation Potentials

Cell Proliferation, EarlyView.
The hfPSC‐LCs could be established from naïve hESCs, conventional hESCs, hiPSCs, and human blastocysts. The hfPSC‐LCs hold robust capacity for three germ layers, hPGCLCs, and hALPCs. ABSTRACT Human embryos undergo pivotal morphogenetic remodelling shortly after implantation. The understanding of this crucial stage is severely impeded by the scarcity of
Xiaoxiao Wang, Qizhi Wang, Yu Wu, Chen Gu, Mingfei Li, Yong Fan, Xiangjin Kang, Lei Li, Zheng Gao, Mingyan Hei, Jianqiao Liu, Lei Li   +11 more
wiley   +1 more source

Heterogeneity in Fluorescence-Stained Sperm Membrane Patterns and Their Dynamic Changes Towards Fertilization in Mice

Frontiers in Bioscience-Landmark
Background: Sperm represent a heterogeneous population crucial for male reproductive success. Additionally, sperm undergo dynamic changes during maturation and capacitation.
Momoka Hirai, Satoshi Kishigami
doaj   +1 more source

The tree‐parasitic fungus Cryphonectria carpinicola discovered on European chestnut and European hornbeam in Azerbaijan

EPPO Bulletin, EarlyView.
Abstract The ascomycetous fungus Cryphonectria carpinicola is typically found in its asexual form on the European hornbeam, and its sexual state has only recently been discovered in deadwood of different Carpinus species in Japan. Recently, this fungus has been added to the EPPO Alert List due to its increasing incidence in the EPPO region and a ...
Carolina Cornejo, Dilzara Aghayeva, Ludwig Beenken   +2 more
wiley   +1 more source

cAMP -dependent protein tyrosine phosphorylation during bovine sperm capacitation

, 2000
Mammalian sperm capacitation, defined as an obligatory maturational process leading to the development of the fertilization-competent state, is regulated by a series of poorly understood molecular events. This study examines signaling pathways associated
Galantino-Homer, Hannah Laura
core  

Cytochemical study on human spermatozoa metabolism during in vitro capacitation

, 1987
In eutherian mammalian spermatozoa the capacitation is coupled to a specific type of metabolism, that is glycolysis or oxidative respiration. A cytochemical study was carried out on cytochrome oxidase and lactate dehydrogenase in human spermatozoa ...
F. Cremonesi, F Porcelli, E. Uber, F. Chiara, A. Baglioni, A. Lange-Consiglio, M. Marchini, A. Carnevali, B. Ferrandi   +8 more
core   +1 more source

Genetic and Ecological Management of Pacific Salmon Fisheries for the 21st Century

Fisheries Management and Ecology, EarlyView.
ABSTRACT Based on ecological adaptation theory, tremendous effort is being spent on measures that are eliminating salmon hatcheries and fishing opportunities with the intention of protecting wild runs deemed to be of particular genetic importance to the survival of the species.
Randall E. Brummett, Ian G. Cowx, Devin M. Bartley   +2 more
wiley   +1 more source