Results 41 to 50 of about 896,121 (306)

Crescimento e sobrevivência da tilápia chitralada submetida a diferentes fotoperíodos Growth and survival of tilapia chitralada submitted to different photoperiods

open access: yesPesquisa Agropecuária Brasileira, 2008
O objetivo deste trabalho foi avaliar o efeito do fotoperíodo no crescimento e sobrevivência da tilápia chitralada, Oreochromis niloticus, durante e após a fase de reversão sexual. O trabalho foi realizado em 2006 e 2007, em dois experimentos.
Katia Santos Bezerra   +4 more
doaj   +1 more source

Pelvic breadth and juvenile locomotor energetics: Implications for the obstetrical dilemma hypothesis across human growth in past and present humans

open access: yesThe Anatomical Record, EarlyView.
Abstract The obstetrical dilemma hypothesis (ODH) proposes an evolutionary trade‐off between obstetric requirements and locomotor performance. However, whether external pelvic breadth measures influence walking energetics during human growth remains poorly understood.
Guillermo Zorrilla‐Revilla   +4 more
wiley   +1 more source

CARACTERIZACIÓN MOLECULAR DE DOS PACIENTES 46 XY, FENOTIPO FEMENINO. SÍNDROME DE SWYER

open access: yesArchivo Médico de Camagüey, 2004
El síndrome de Swyer es un desorden de la diferenciación sexual en el cual los pacientes exhiben un fenotipo femenino con cariotipo 46 XY e hipoplasia gonadal sin células germinales.
Juan Carlos Piña Napal   +3 more
doaj  

Redescription of †Eobrasilia coutoi (Metatheria: Polydolopimorphia), a unique sclerocarpophagous metatherian from the Palaeogene of South America: Systematic affinities, and paleoecological and evolutionary implications

open access: yesThe Anatomical Record, EarlyView.
Abstract The ‘Palaeogene strata’ of the Itaboraí Basin (upper Paleocene‐lower Eocene), Southeastern Brazil, has preserved 29 genera and almost 50 species of metatherians (about 65% of its mammalian diversity). Among them, Eobrasilia coutoi Simpson, 1947 is the most enigmatic due to its quite fragmentary nature.
Leonardo M. Carneiro   +10 more
wiley   +1 more source

SEXUAL ORIENTATION ATTRIBUTIONS АND CONVENTIONAL PRE-EXISTING VALUES IN THE CONTEXT OF SEXUAL MINORITIES’ RIGHTS [PDF]

open access: yes, 2022
Attributions concerning the origins of sexual orientation are acknowledged as significant predictors of attitudes toward sexual minorities. Sexual prejudice and opposition to same-gender couple’s rights are strongly linked with support of traditional ...
Grigoropoulos, iraklis
core   +2 more sources

Estandarización del manejo y la criopreservación de semen de hembras masculinizadas de trucha arco iris (Oncorhynchus mykiss) Padronizar a gestão ea criopreservação de sêmen de fêmeas de truta arco-íris (Oncorhynchus mykiss) sob masculinização Standardization of handling and freezing sperm from masculinized females of rainbow trout (Oncorhynchus mykiss)

open access: yesRevista Colombiana de Ciencias Pecuarias, 2008
La demanda de líneas monosexo hembras en la producción de trucha ha incrementado significativamente en los últimos años, por lo que se han desarrollado tecnologías para estandarizar este proceso como el uso de semen de hembras genéticas sometidas a ...
James J Betancur L   +4 more
doaj  

Clock Genes Regulate Ca2+ Signaling and Mitochondrial Bioenergetics to Inhibit Sjögren Disease

open access: yesArthritis &Rheumatology, EarlyView.
Objective Although Ca2+ signaling and metabolism have been identified as key determinants for the development of Sjögren disease (SjD), the intricate connection between them and salivary gland physiology remains poorly understood. Methods Fluorescence‐based Ca2+ imaging, RNA sequencing, and mitochondrial activity were used to investigate the effects of
Viktor R. Drel   +12 more
wiley   +1 more source

Biopsychosocial predictors of sexual desire level in men [PDF]

open access: yes, 2017
Literature showed a close relationship between desire and arousal on female side, emphasized by DSM-5. On the contrary, male sexual response has historically been considered more simple and mechanistic.
Filippo Maria Nimbi   +7 more
core   +1 more source

Genome-wide identification of simple sequence repeats and development of polymorphic SSR markers in swamp eel (Monopterus albus)

open access: yesScience Progress, 2021
Objectives: Swamp eel is one model species for sexual reversion and an aquaculture fish in China. One local strain with deep yellow and big spots of Monopterus albus has been selected for consecutive selective breeding.
Hai-feng Tian, Qiao-mu Hu, Zhong Li
doaj   +1 more source

Roles of estrogen receptors during sexual reversal in Pelodiscus sinensis

open access: yesMolecular Biology Reports, 2023
Abstract The Chinese soft-shelled turtle, Pelodiscus sinensis, exhibits distinct sexual dimorphism, with the males growing faster and larger than the females. During breeding, all-male offspring can be obtained using 17β-estradiol (E2). However, the molecular mechanisms underlying E2-induced sexual reversal have not yet been elucidated ...
Guobin, Chen   +7 more
openaire   +2 more sources

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