Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 18851-18870 of 20516
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(2007)It is widely accepted that cholesterol plays an important role in the infiltration and entrapment of low density lipoprotein (LDL) in the blood vessel walls (atherogenesis). The transport of cholesterol and other lipids ...
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(Institute of Physics Publishing, 2018)ZnS thin films grown by the chemical bath deposition method have been under intense investigation due to their applications in solar cells. In this work, the early growth stages of ZnS thin films deposited by means of a ...
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Study of the effect of branching in degradation of polyethylenes obtained via metallocene catalyst (SOC CHILENA QUIMICA, 2008-06)Polyethylenes, homo and copolymers obtained via metallocene catalyst, were synthesized and used to study the effect of comonomer size and content in the main linear backbone polymer on its degradation. Homoethylene metallocene ...
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(American Society Testing Materials, 2017)The objective of the paper is to study the shear stiffness of Bio Bio sand. To this end, a system to measure the travel time of shear waves in Bio Bio sand samples using bender elements was designed and setup in an adapted ...
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(Copernicus, 2020)The description of the relationship between interplanetary plasma and geomagnetic activity requires complex models. Drastically reducing the ambition of describing this detailed complex interaction and, if we are interested ...
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(American Institute of Physics Inc., 2018)An MHD shell model is used to describe the dissipative events that take place in magnetized plasmas. We analyze the activity of the time series of the magnetic energy dissipation rate obtained in the MHD shell model, which ...
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(Universidad de Chile, 2012)Por más de un siglo se ha llevado a cabo investigación referente al campo del flujo gravitacional a través de variadas herramientas. De hecho, casi todas las minas operadas por métodos basados en hundimiento o explotadas ...
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(MDPI, 2021)Featured Application This study indicates that the shape of the pulsatile pressure has great effect on hemodynamics and therefore in the future it should be considered in the clinical treatment of cerebral aneurysms. ...
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(EDP Sciences, 2013)Context. More than 40 planets have been found around giant stars, revealing a lack of systems orbiting interior to ∼0.6 AU. This observational fact contrasts with the planetary population around solar-type stars and has ...
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(Elsevier, 2020)In this study we report significant enhancement of up-conversion emissions of La2O3:Er thin films when they are co-doped with Er/Ln (where Ln = Nd or Ho). The proposed mechanisms by which the Ln ions contribute to these ...
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(MDPI, 2021)A study addressed to develop new recyclable and/or biodegradable magnetic polymeric materials is reported. The selected matrices were polypropylene (PP) and poly (lactic acid) (PLA). As known, PP corresponds to a non-polar ...
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(Elsevier Ltd, 2019)© 2018 Elsevier B.V. This work studies the effect of different Cu/Ce loading ratios in the formation of highly dispersed copper species being interacting with CeO2 on zirconia-supported CuO–CeO2 catalysts. These species ...
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(EDP Sciences, 2016)Context. On the asymptotic giant branch (AGB) low-and intermediate-mass stars eject a large fraction of their envelope, but the mechanism driving these outflows is still poorly understood. For oxygen-rich AGB stars, the ...
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(Elsevier, 2013)The acoustic emissions generated by bubbles when they form are well understood and can be easily measured using a hydrophone and amplifier. Bubbles emit an audible sound not only when they form, but also when two or more ...
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(EDP Sciences, 2017)Aims. We aim to study the molecular and the ionized gas in a possible precursor of an ultra-compact H II region to contribute to the understanding of how high-mass stars build-up their masses once they have reached the ...
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(2011)Aims. HESS J1858+020 is a weak γ-ray source lying near the southern border of the SNR G35.6-0.4. A molecular cloud, composed of two clumps, shows signs of interaction with both the SNR and a nearby extended HII region. ...
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(Wiley, 2018-08)
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(Universidad de Chile, 2023)Las propiedades de materia de neutrones en estado normal a temperatura cero son investigadas dentro de la teoría de funciones de Green autoconsistentes (SCGF, por sus siglas en inglés) en la aproximación escalera utilizando ...
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(SciTePress, 2020)
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(Universidad de Chile, 2013)El Gran Conjunto Milimétrico / submilimétrico de Atacama (ALMA) es el observatorio astronómico más grande jamás construido. Se encuentra ubicado en el Llano de Chajnantor, a una altitud de 5.000 metros sobre el nivel del ...