Buscar
Mostrando ítems 21-30 de 447
How do cold-sensitive species endure ice ages? Phylogeographic and paleodistribution models of postglacial range expansion of the mesothermic drought-tolerant conifer Austrocedrus chilensis
(Wiley Blackwell Publishing, Inc, 2015-06)
In view of global climate change, it is important to understand the responses of tree species to climate changes in the past. Combinations of phylogeographic analysis of genetic evidence, coupled with species distribution ...
Does low temperature prevent Spartina alterniflora from expanding toward the austral-most salt marshes?
(Springer, 2011-04)
Along the Atlantic coast of South America, the northern salt marshes (lower than 43°S) are dominated by Spartina species while the southern salt marshes (greater than 43°S) are dominated by Sarcocornia perennis. The most ...
Biogeography of two cold-adapted genera: Psychrobacter and Exiguobacterium
(NATURE PUBLISHING GROUP, 2009)
The genera Exiguobacterium and Psychrobacter have been frequently detected in and isolated from polar permafrost and ice. These two genera have members that can grow at temperatures as low as -5 and -10 degrees C, respectively. ...
Thermal sensitivity of cold climate lizards and the importance of distributional ranges
(Elsevier Gmbh, 2015-08)
One of the fundamental goals in macroecology is to understand the relationship among species’ geographic ranges, ecophysiology, and climate; however, the mechanisms underlying the distributional geographic patterns observed ...
Variation in body size and degree of melanism within a lizards clade: is it driven by latitudinal and climatic gradients?
(Wiley, 2015-04)
Body size (BS) varies in response to several selective pressures. In ectotherms, thermal inertia may affect thermoregulation, since larger BSs increase heat conservation as Bergmann originally stipulated for endotherms. ...
Coulomb and even-odd effects in cold and super-asymmetric fragmentation for thermal neutron induced fission of U-235
(Instituto Peruano de Energía NuclearPE, 2016-05)
The Coulomb effects hypothesis is used to interpret even-odd effects of maximum total kinetic energy as a function of mass and charge of fragments from thermal neutron induced fission of U-235. Assuming spherical fragments ...
US geopolitical goals and IMF conditionality: was Cold War relevant?
(2019-04-03)
Durante a Guerra Fria, o Fundo Monetário Internacional era suscetível a pressões políticas estadunidenses? Se sim, a abordagem dos EUA em relação ao Fundo mudou após 1989? Esta dissertação mostra que países estrategicamente ...
Transitory Activation of the Central and Ovarian Norepinephrine Systems During Cold Stress-Induced Polycystic Ovary in Rats
(British Society for Neuroendocrinology, 2013)
Cold stress-induced ovarian sympathetic activation is associated with the development of ovarian
cysts in rats. Although we have hypothesised that polycystic ovary (PCO) features induced
by cold stress, as prevented by ...
Molecular and functional resistance to insulin in hypothalamus of rats exposed to cold
(Amer Physiological SocBethesdaEUA, 2003)