Results 41 to 50 of about 160,820 (274)

Induced Spawning of F1 Wreckfish (Hāpuku) Polyprion oxygeneios Using a Synthetic Agonist of Gonadotropin-Releasing Hormone

open access: yesFishes, 2019
Wild-caught hāpuku (Polyprion oxygeneios) spawn readily in captivity, but although first filial (F1) hāpuku complete vitellogenesis, females fail to undergo oocyte maturation and spawn or produce poor quality eggs.
Matthew J. Wylie   +6 more
doaj   +1 more source

Dissection of the Ovulatory Process Using ex vivo Approaches

open access: yesFrontiers in Cell and Developmental Biology, 2020
Ovulation is a unique physiological phenomenon that is essential for sexual reproduction. It refers to the entire process of ovarian follicle responses to hormonal stimulation resulting in the release of mature fertilization-competent oocytes from the ...
Alexander A. Tokmakov   +2 more
doaj   +1 more source

Efficacy and Efficiency in Natural Family Planning Services [PDF]

open access: yes, 2009
Relatively few Catholic couples in the United States use modern methods of natural family planning (NFP). So too, few Catholic physicians and health professionals prescribe the use of NFP methods for their patients.
Fehring, Richard
core   +2 more sources

Hepatic KLF9 Deficiency Inhibits Dehydroepiandrosterone (DHEA)‐Induced Polycystic Ovary Syndrome via Liver‐Ovary Axis

open access: yesAdvanced Science, EarlyView.
The study shows that liver is a previously unrecognized extraovarian organ that plays a key role about androgen homeostasis in the development of DHEA‐induced PCOS. DHEA is the most common precursor of active androgen, such as DHT, and KLF9 is required for the conversion of DHEA to DHT and hepatic KLF9 might be a potential therapeutic target for PCOS ...
Jianli Song   +11 more
wiley   +1 more source

Gonadotrofina coriônica eqüina: purificação, caracterização e resposta ovariana em ovinos e suínos Equine chorionic gonadotrophin: purification, characterization and ovarian activity in ewes and gilts

open access: yesCiência Rural, 1995
A gonadotrofina coriônica equina (eCG) foi purificada e caracterizada com respeito ao grau de pureza e atividade biológica. A pureza de quatro preparações foi determinada por eletroforese e a atividade biológica pelo incremento do peso ovariano de ratas ...
José Antonio Guimarães Aleixo   +4 more
doaj   +1 more source

Ovary and ovulation: Symmetry and ovulation in women [PDF]

open access: yesHuman Reproduction, 1996
Women have cryptic ovulation, and self-observation methods of determining the timing of ovulation, such as monitoring cervical mucus symptoms or recording basal body temperature, are not reliable. It has recently become apparent that the symmetry of paired soft tissue traits, such as breast size and digit length, changes across the menstrual cycle ...
J.T. Manning, Diane Scutt
openaire   +3 more sources

Designing Memristive Materials for Artificial Dynamic Intelligence

open access: yesAdvanced Intelligent Discovery, EarlyView.
Key characteristics required of memristors for realizing next‐generation computing, along with modeling approaches employed to analyze their underlying mechanisms. These modeling techniques span from the atomic scale to the array scale and cover temporal scales ranging from picoseconds to microseconds. Hardware architectures inspired by neural networks
Youngmin Kim, Ho Won Jang
wiley   +1 more source

Efeitos da progesterona exógena sobre o desenvolvimento folicular em ovelhas Effects of exogen progesterone on follicular development in sheep

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2008
Avaliaram-se os efeitos da progesterona (P4) sobre o crescimento folicular e na endocrinologia reprodutiva em ovelhas Bergamácia. Quatorze ovelhas sincronizadas com prostaglandinas (PGF2alfa ) foram distribuídas em dois grupos (n=7/grupo): grupo-controle
L.F. Uribe-Velásquez   +2 more
doaj   +1 more source

Treating Mares with the Long-Acting Kisspeptin Analog C6 Increases Circulating Gonadotropins but Does Not Trigger Ovulation

open access: yesAgriculture, 2022
The role of the neuropeptide kisspeptin (Kp) in mammalian reproduction is well established. Nevertheless, species-specific differences exist. In the horse, administration of the shortest endogenous Kp isoform, Kp10, is unable to trigger ovulation even ...
Flavie Derouin-Tochon   +13 more
doaj   +1 more source

Ovarian growth and ovulation in the mature blue crab, Callinectes sapidus Rathbun [PDF]

open access: yes, 1942
Introduction. Observations: structure of the ovary during the periods of growth and ovulation in the mature crab (stages 1-5).
Hard, W.L.
core  

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