Buscar
Mostrando ítems 1-10 de 72
Modeling Two-Oscillator Circadian Systems Entrained by Two Environmental Cycles
(PUBLIC LIBRARY SCIENCE, 2011)
Several experimental studies have altered the phase relationship between photic and non-photic environmental, 24 h cycles (zeitgebers) in order to assess their role in the synchronization of circadian rhythms. To assist ...
External temporal organization in biological rhythms
(Taylor & Francis LTDAbingdon, 2013-08-02)
This paper is intended as a proposition of a new concept in the field of chronobiology, External Temporal Organization, a notion complementary to that of the Internal Temporal Organization. We will try to explain the ...
Influence of chronotype and social zeitgebers on sleep/wake patterns
(Associação Brasileira de Divulgação Científica, 2008-10-01)
Inter-individual differences in the phase of the endogenous circadian rhythms have been established. Individuals with early circadian phase are called morning types; those with late circadian phase are evening types. The ...
Ritmos de actividad locomotora y uso de las cuevas en condiciones seminaturales en Ctenomys talarum (Rodentia, Octodontidae)
(Sociedad de Biología de Chile, 2000)
Effect of constant light on fetal and maternal prolactin rhythms in sheep
(Endocrine Society, 1996)
A 24-h rhythm of plasma PRL is present in fetal sheep. This rhythm
is synchronized to an environmental clue (zeitgeber). We determined
whether the light-dark cycle (L:D) is a zeitgeber for the fetal PRL
rhythm and, if ...
O envelhecimento do complexo geniculado lateral de ratos: mudanças morfológicas e ritmicidade diária de calretinina
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM PSICOBIOLOGIA, 2018-11-09)
Normal aging is accompanied by declines in visual system even in the absence of
pathological processes. Among the components of this system, the lateral geniculate nucleus
(LGN) comprises the dorsal lateral geniculate ...
Forced Desynchronization of Activity Rhythms in a Model of Chronic Jet Lag in Mice
(SAGE PUBLICATIONS INCTHOUSAND OAKS, 2012)
We studied locomotor activity rhythms of C57/Bl6 mice under a chronic jet lag (CJL) protocol (ChrA(6/2)), which consisted of 6-hour phase advances of the light-dark schedule (LD) every 2 days. Through periodogram analysis, ...
Synchronization of circadian locomotor activity behavior in Caernorhabditis elegans: Interactions between light and temperature
(Elsevier Science SA, 2020-10)
Circadian rhythms are driven by an endogenous clock which is synchronized by daily environmental cycles (known as zeitgebers). Although the circadian responses of C. elegans to light have been recently reported, the ...