Repositorio Académico de la Universidad de Chile: Recent submissions
Now showing items 44861-44880 of 98986
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(Blackwell Publishing Ltd, 2017)© 2017 The Netherlands Entomological Society Investment in soldier production in eusocial lineages involves a trade-off between maintenance costs and defense benefits. Termites are eusocial insects that live in colonies ...
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(Springer International Publishing, 2017)© 2017, Springer International Publishing Switzerland. In addition to natural stressors such as predation risk, aquatic organisms receive the simultaneous impact of anthropogenic stressors like pollution. In order to advance ...
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(Springer Verlag, 2017)© 2017, Springer-Verlag Berlin Heidelberg. The activation mechanism of dopamine receptors is unknown. The amino acids S5.42, S5.43, and S5.46 located in helix 5 appear to be crucial, but their specific roles in receptor ...
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(Elsevier B.V., 2017)© 2017 Elsevier B.V. Mistletoes rely on biotic seed dispersal to ensure their recruitment on appropriate host plants, as their seeds must be deposited on safe sites to allow attachment. As most host-parasite systems, ...
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(Ecological Society of America, 2017)© 2017 Fontúrbel et al. Anthropogenic disturbance can modify habitat structure and resource availability, potentially disrupting ecological interactions. This issue may be critical for pollination and seed dispersal, which ...
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(American Physical Society, 2017)© 2017 American Physical Society.We examine the switching dynamics of discrete solitons propagating along two coupled discrete arrays which are twisted to form a Möbius strip. We analyze the potential of the topological ...
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(University of Chicago Press, 2017)Small resident bird species living at northern latitudes increase their metabolism in winter, and this is widely assumed to improve their chances of survival. However, the relationship between winter metabolic performance ...
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(American Academy of Pediatrics, 2017)Copyright © 2017 by the American Academyof Pediatrics. All rights reserved. CONTEXT: No study has characterized and appraised all anchor-based minimally important differences (MIDs) associated with patient-reported outcome ...
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(Frontiers Media S.A., 2017)© 2017 Peña-Villalobos, Piriz, Palma and Sabat. Studies on the yolk and albumen content in bird eggs, and the effects of variations in their relative loads in the phenotype of the birds, have revealed multiple consequences ...
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(Blackwell Publishing Ltd, 2017)© 2016 The Authors. Journal of Animal Ecology © 2016 British Ecological SocietyBecause a broad spectrum of resource use allows species to persist in a wide range of habitat types, and thus permits them to occupy large ...
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(Universidad Catolica del Norte, 2017)A representation field for a non-maximal order in a central simple algebra is a subfield of the spinor class field of maximal orders which determines the set of spinor genera of maximal orders representing H. In our previous ...
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(American Physical Society, 2017)© 2017 American Physical Society.We show that the interaction between the spin-polarized current and the magnetization dynamics can be used to implement black-hole and white-hole horizons for magnons - the quanta of ...
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(Institute of Arctic and Alpine Research, 2017)© 2017 Regents of the University of Colorado. We tested the main hypothesis that nutrient accumulation during late stages of postglacial succession would decrease nutrient limitation of diazotrophic activity. We tested ...
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(American Chemical Society, 2017)© 2016 American Chemical Society.Disturbed iron homeostasis, often coupled to mitochondrial dysfunction, plays an important role in the progression of common neurodegenerative diseases such as Parkinson’s disease (PD). ...
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(Frontiers Media S.A., 2016)© 2016 Maldonado, Sabat, Piriz, Bogdanovich, Nespolo and Bozinovic. Food availability varies substantially throughout animals' lifespans, thus the ability to profit from high food levels may directly influence animal ...
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(Universite de Bordeaux I, 2000)© Université Bordeaux 1, 2000. tous droits réservés.Let B be a quaternion algebra over a number field k. To a pair of Hilbert symbols {a, b} and {c, d} for B we associate an invariant ρ = ρR([D(a, b)], [D(c, d)]) in a ...
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(Universidad Catolica del Norte, 2016)In this paper we work with the variety of commutative algebras satisfying the identity β((x2y)x - ((yx)x)x)+γ(x3y - ((yx)x)x) = 0, where β, γ are scalars. They are called generalized almost-Jordan algebras. We prove that ...
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(American Ornithological Society, 2017)© 2017 American Ornithological Society. Nest morphology can affect the breeding success of birds. Thus, birds inhabiting different environments may experience divergent selection for nest structure and composition that ...
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(Blackwell Publishing Ltd, 2017)© 2016 John Wiley & Sons Ltd Aim: We use an integrative biogeographical approach to further understand the evolution of an important Southern Ocean marine benthic element, the limpet genus Nacella (Mollusca: Patellogastropoda). ...
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(Universidade Federal de Santa Maria, 2016)© 2016, Universidade Federal de Santa Maria. All rights reserved. The use of growth regulators or phytoregulators, is an alternative to increase flowering in the Pinaceae family. In this study, we examined the effects of ...
