Browsing by Title
Now showing items 27870-27889 of 91997
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(Universidad de Chile, 2023)La masa es el parámetro fundamental que determina la estructura y evolución de una estrella. Sin embargo, medir la masa de las estrellas no es una tarea fácil, por lo que el número de estrellas con masas bien conocidas ...
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A dynamically-packed planetary system around GJ 667C with three super-Earths in its habitable zone (EDP Sciences, 2013-08)Context. Since low-mass stars have low luminosities, orbits at which liquid water can exist on Earth-sized planets are relatively close-in, which produces Doppler signals that are detectable using state-of-the-art Doppler ...
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(CSIRO Publishing, 2008)Parathion, an organophosphorous pesticide, presents serious hazards to the environment and health. It inhibits acetylcholinesterase, an enzyme incorporated in the cell membrane. A study on the behaviour of parathion in a ...
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(Elsevier, 2020)Volcanic debris avalanches are extremely destructive phenomena, with the potential to travel many kilometers from their source region, either as rockslides or as mass flows. Given that they may even be triggered at inactive ...
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(IOP Publishing, 1996)We study propagation of excitations in one-dimensional tight-binding chains doped with random impurities that are classical Einstein oscillators. We find that the presence of impurities does not affect substantially the ...
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(IOP Publishing, 2020)This paper introduces a new consideration in the well known chemostat model of a one-species with a periodic input of single nutrient with period omega, which is described by a system of differential delay equations. The ...
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(American Physical Society, 2014)Agranular system confined in a quasi-two-dimensional box that is vertically vibrated can transit to an absorbing state in which all particles bounce vertically in phase with the box, with no horizontal motion. In principle, ...
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(Institute of Mathematical Statistics, 2018)We study the long-time behavior of the dynamics of interacting planar Brownian particles, confined by an external field and subject to a singular pair repulsion. The invariant law is an exchangeable Boltzmann – Gibbs ...
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(IOP PUBLISHING LTD, 2008-07-02)The classical action for a three-dimensional rotating particle with time-dependent angular velocity and that submitted to a general linear and quadratic time-dependent potential is explicitly calculated and, via path ...
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(1988)The dynamics of extended models of charged particles considered as sources of the Reissner-Nordström geometry is analyzed. They consist of spherical bubbles with electric charge and surface tension. Equations of motion for ...
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(Universidad de Concepción, 2020)Forest and agricultural exports, particularly fruit exports, are one of the backbones of the Chilean economy. In general, the study of this type of exports has been approached from a local perspective, regardless of the ...
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(2009)Seafood consumption-related diarrhea became prevalent in Chile when the pandemic strain of Vibrio parahaemolyticus serotype O3:K6 reached a region in the south of Chile (Region de los Lagos) where approximately 80% of the ...
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(2012)Background: Understanding the cellular mechanisms regulating axon degeneration and regeneration is crucial for developing treatments for nerve injury and neurodegenerative disease. In neurons, axon degeneration is distinct ...
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(1976)To investigate the role of the eosinophil leukocytes in the early oestrogenic responses in the uterus, the kinetics of oestrogen-induced uterine eosinophilia and other parameters of oestrogen stimulation were studied at ...
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(AMER Geophysical Union, 2021)The 2004-2009 caldera uplift is the largest instrumentally recorded episode of unrest at Yellowstone caldera. We use GPS and Interferometric Synthetic Aperture Radar (InSAR) time series spanning 2004-2015, with a focus in ...
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(2013)Background: Helicobacter pylori colonization/infection can be transitory or persistent, conditions that have not been thoroughly evaluated in young children. We aimed to characterize the dynamics of H. pylori stool ...
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(1993)Infectious diseases in human populations are seldom seen as part of a permanently occurring phenomenon in natural ecosystems. Their relationships to predator-prey or host-parasite systems are not evident. The conceptual ...
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(Universisdad de Chile, 2017)Como otro paso hacia la comprensión de la evolución a lo largo plazo del campo magnético en las estrellas de neutrones, ofrecemos las primeras simulaciones de difusión ambipolar en una estrella esférica. Restringiendonos ...
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(Cambridge University Press, 2008-05)This paper uses the 1996–2001 National Socioeconomic Survey panel database to analyse poverty dynamics in Chile, drawing a distinction between chronic and transient poverty. We found that while 20 per cent of the ...
