Browsing by Title Facultad de Ciencias
Now showing items 5465-5484 of 8184
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(Blackwell Publishing Ltd, 2015)© 2014 German Botanical Society and The Royal Botanical Society of the Netherlands.The component Allee effect has been defined as 'a positive relationship between any measure of individual fitness and the number or density ...
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(Wiley-Blackwell, 2015)The component Allee effect has been defined as a positive relationship between any measure of individual fitness and the number or density of conspecifics'. Larger plant populations or large patches have shown a higher ...
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(1992)We present a variational approach to the Heisenberg antiferromagnetic model for spin 1/2 and anisotropic exchange, with an external longitudinal and transverse magnetic field. In the one-dimensional case, we calculate ...
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(1982)Using the Green function technique, the authors calculate the transition probability amplitude for one atom interacting with a one-mode electromagnetic field, without assuming the rotating-wave approximation (RWA). The ...
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(Taylor and Francis, 2016)In this work, the Lieb-Thirring kinetic energy bound is numerically examined for a variety of systems: the hydrogen-like atoms, neutral atoms, isoelectronic series of atomic ions, the Hooke's atom and some small molecules. ...
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(SOCIEDAD BIOLOGIA CHILE, 2006-09)Nurse effects, which occur when one plant species enhances the survival or growth of another plant species, are predicted to be most relevant in stressful environments. These effects are particulary important during seedling ...
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(Universisdad de Chile, 2009)A partir del cambio de estado ocurrió en el humedal rio Cruces durante el año 2004 desaparece la población de macrofitas acuáticas dominantes, Egeria dansa. De acuerdo a ello, una de las hipótesis que intenta explicar el ...
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(Wiley, 2021)Environmental conditions experienced by developing animals have an impact on the development and maturity of the immune system. Specifically, the diet experienced during early development influences the maintenance and ...
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(1989)Cytochrome P450-dependent oxidation of arachidonic acid was studied in liver microsomes from normal fed, protein-energy malnourished, and refed rats. The overall rate of arachidonic acid oxidation was very similar in ...
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El núcleo geniculado ventrolateral y su rol visuomotor en las conductas de orientación de mirada (Universidad de Chile, 2015)
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(Universidad de Chile, 1986)
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(International Union of Crystallography, 2000)© 2000 International Union of Crystallography.The Ru atom in the title compound, [RuCl2{P(C6H5)3}2-{C6H4(NH)2}]·1.33CH3OH·0.33CH2Cl2, shows a six-coordinate octahedral geometry, with a trans arrangement of the triphenylphosphine ...
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(Company of Biologists, 2020)
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(Universidad de Chile., 1976)NGC 630 es un objeto muy peculiar; su formación fue causada por un evento muy violento, que generó una nebulosa no simétrica , Esta nebulosa tiene una estructura filamentaria y su estrella central no se puede ver porque ...
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(American Physical Society, 2015)We demonstrate the first experimental realization of a dispersionless state, in a photonic Lieb lattice formed by an array of optical waveguides. This engineered lattice supports three energy bands, including a perfectly ...
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(Elsevier, 2017)We experimentally study the transport properties of dipolar and fundamental modes on one dimensional (1D) coupled waveguide arrays. By carefully modulating a wide optical beam, we are able to effectively excite dipolar or ...
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(IOP Publishing Ltd, 2018)We report on the experimental realization of a quasi-one-dimensional photonic graphene ribbon supporting four flat-bands (FBs). We study the dynamics of fundamental and dipolar modes, which are analogous to the s and p ...
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(OPTICAL SOC AMER, 2010-08-15)We study experimentally light localization at phase-slip waveguides and at the intersection of phase-slips in a two-dimensional (2D) square photonic lattice. Such system allows to observe a variety of effects, including ...
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(2013)Phosphofructokinase-2 is a dimeric enzyme that undergoes cold denaturation following a highly cooperative N2 2I mechanism with dimer dissociation and formation of an expanded monomeric intermediate. Here, we use intrinsic ...
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(AMERICAN PHYSICAL SOC, 2006-08-25)We report on the observation of surface gap solitons found to exist at the interface between uniform and periodic dielectric media with defocusing nonlinearity. We demonstrate strong self-trapping at the edge of a LiNbO3 ...