Artículos de revistas: Recent submissions
Now showing items 4501-4520 of 4968
-
(2009)The structural short-range order of amorphous compounds with the composition CdTeOx a-CdTeOx is investigated by means of ab initio molecular dynamics. The interatomic forces have been calculated using a plane-wave ...
-
(Springer, 2007)Northern populations of the White-crowned Sparrow, Zonotrichia leucophrys, show varying degrees of social modulation of testosterone. In general, males of midlatitude breeding and multiple-brooded populations show transient ...
-
(The Neotropical Ornithological Society, 2008)How animals respond to perturbations of the environment is relevant to the effects of global climate change and human disturbance. The physiological mechanisms underlying facultative responses to unpredictable perturbations ...
-
(Springer-Verlag, 2006)Maximum parsimony and Bayesian likelihood analysis of ribosomal DNA internal transcribed spacer (ITS) sequences from 55 samples representing 25 species, subspecies, and/or hybrids of Tropaeolum sect. Chilensia yielded ...
-
(2006)Metaphors are not just rhetorical devices, but also very powerful cognitive tools. We can check through learning experiments that they help us, not only to learn new ideas, but also that they provide very efficient means ...
-
(2009-01)We describe the tensor products of two irreducible linear complex representations of the group G = GL(3, F q) in terms of induced representations by linear characters of maximal torii and also in terms of classical ...
-
(2007)Sexual dimorphism, mating system, and parental care are known for only a few species of the large passerine family Furnariidae. We conducted a study of sexual dimorphism in morphology, coloration, and parental roles ...
-
Olfactory conditioning in mate searching by the parasitoid Aphidius ervi (Hymenoptera: Braconidae) (Cambridge University Press, 2008)Despite the fact that insect learning capacity has been broadly demonstrated, the role that this process plays during mate searching has been scarcely explored. We studied whether the sexual behaviour of a male parasitic ...
-
(2007)The didactic role of metaphors and cognitive modes as well as their interplay is discussed, based on examples. Transition from one cognitive mode to another is illustrated, in case studies with students and in-service ...
-
(2005)We evaluated experimentally the effect of a gall-maker insect on vegetative and reproductive traits of the shrub Colliguaja integerrima (Euphorbiaceae). We performed two experiments: (1) a chemical (insecticide) exclusion ...
-
(Springer, 2008)The scientific study of evolution in Chile has experienced periods of diversification and stasis, depending upon the social and political context at different times. In the eighteenth century, most of the natural history ...
-
(ELSEVIER, 2007)We report pollen and charcoal records from Vega Ñandú (∼51°0′S, 72°45′W), a small mire located near the modern forest-steppe ecotone in Torres del Paine National Park, southern Chile. The record shows an open landscape ...
-
(2005)Prunus persica has been proposed as a genomic model for deciduous trees and the Rosaceae family. Optimized protocols for RNA isolation are necessary to further advance studies in this model species such that functional ...
-
(Taylor & Francis Group, 2008)In this article we study nonassociative rings satisfying the polynomial identity x yz = y zx , which we call “cyclic rings.” We prove that every semiprime cyclic ring is associative and commutative and that every cyclic ...
-
(Taylor & Francis Group, 2007)Correa et al. (2003) proved that any commutative right-nilalgebra of nilindex 4 and dimension 4 is nilpotent in characteristic =2 3. They did not assume powerassociativity. In this article we will further investigate ...
-
(Ecological Society of Australia, 2007)In this work we report on the seasonal trends of abundances in terms of temperature exposure for four coexisting cladoceran species (Daphnia ambigua (Daphniidae), Ceriodaphnia dubia (Daphniidae), Diaphanosoma chilense ...
-
(University of Chicago, 2007-09)Models of ecological communities are traditionally based on relationships between pairs of species, where the strengths of per capita interactions are fixed and independent of population abundance. A growing body of ...
-
(Elsevier, 2007)It has been reported that, in order to reduce mortality, prey are able to change their phenotype in response to cues released from predators. These short-time responses constitute effective antipredator strategies in ...
-
(ELSEVIER SCIENCE INC, 2007-09-15)FtsZ (Filamentous temperature sensitivity Z) cell division protein from Escherichia coli binds the fluorescence probe DAPI. Bundling of FtsZ was facilitated in the presence of DAPI, and the polymers in solution remained ...
