Buscar
Mostrando ítems 931-940 de 2133
The external genitalia in juvenile Caiman latirostris differ in hormone sex determinate-female from temperature sex determinate-female
(Academic Press Inc Elsevier Science, 2019-03)
The broad-snouted caiman (Caiman latirostris) is a crocodilian species that inhabits South American wetlands. As in all other crocodilians, the egg incubation temperature during a critical thermo-sensitive window (TSW) ...
Stone tool use by adult wild bearded capuchin monkeys (Cebus libidinosus). Frequency, efficiency and tool selectivity
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2011)
Chimpanzees have been the traditional referential models for investigating human evolution and stone tool use by hominins. We enlarge this comparative scenario by describing normative use of hammer stones and anvils in two ...
Nuevo varamiento masivo de orca falsa, Pseudorca crassidens, en el Estrecho de Magallanes, ChileA new mass stranding of false killer whale, Pseudorca crassidens, in the Strait of Magellan, Chile
(Universidad de Valparaíso. Facultad de Ciencias del Mar y de Recursos Naturales, 2015-04)
We report the mass stranding of 46 false killer whales in the Strait of Magellan in February 2013. We present observation-based information about body size, sex, dental formula and necropsies. Sexual dimorphism in body ...
Expression and methylation status of female-predominant GH-dependent liver genes are modified by neonatal androgenization in female mice
(Elsevier Ireland, 2013-11-13)
Neonatal androgenization masculinizes the GH axis and thus may impact on liver gene regulation. Neonatal testosterone administration to female mice decreased (defeminized) female predominant GH-dependent liver gene expression ...
Sex differences in gene expression of X-linked histone demethylase Kdm6a in embryonic hypothalamic neurons
(2018)
Kdm6a and Kdm5c are histone demethylases that play an important role as epigenetic regulators of gene transcription by removing the di- and tri-methylation of Lys27 or Lys4 on histone H3 (H3K27me2/me3 - H3K4me2/me3). Both ...
Efeitos do estresse por separação maternal em micróglias de camundongos machos e fêmeas
(Universidade Federal de Minas GeraisBrasilICB - DEPARTAMENTO DE FISIOLOGIA E BIOFÍSICAPrograma de Pós-Graduação em Ciências Biológicas - Fisiologia e FarmacologiaUFMG, 2021-10-21)
Early life stress modifies behavior and function aspects of brain in long term. It is related to several psychiatric disorders, such as depression and anxiety disorder, schizophrenia and drug abuse. Symptoms start in ...
Efeitos de diferentes protocolos de estresse por separação maternal no comportamento de camundongos juvenis
(Universidade Federal de Minas GeraisBrasilICB - INSTITUTO DE CIÊNCIAS BIOLOGICASPrograma de Pós-Graduação em Ciências Biológicas - Fisiologia e FarmacologiaUFMG, 2020-09-16)
Introduction: The postnatal period is characterized by a high level of synaptic plasticity and being important for the development of the hippocampus. It is known that traumatic experiences during this period increase the ...
Age, growth, and reproductive biology of the Atlantic spadefish Chaetodipterus faber in southern Brazil
(Springer, 2019-01-01)
This is the first study to investigate the age, growth and reproductive biology of the Atlantic spadefish Chaetodipterus faber in southern Brazil. A total of 625 individuals [total length (TL) ranging from 7mm to 510mm] ...