Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 19388-19407 of 20610
-
(Springer, 2021)During the current COVID-19 pandemic, active testing has risen as a key component of many response strategies around the globe. Such strategies have a common denominator: the limited availability of diagnostic tests. In ...
-
(Elsevier, 2016)The co-seismic and post-seismic behaviour of pyroclastic ash deposits and its influence on slope stability remains as a challenging subject in engineering geology. Case studies in volcanic areas of the world suggest that ...
-
(Elsevier, 2017)In order to study the effect of electron-surface scattering in gold ultrathin films (∼10 nm), we have prepared a set of Au samples on mica on top of a chromium seedlayer (<1 nm). Chromium is added as a metallic surfactant ...
-
(Universidad de Chile, 2018)The standard model of cosmology has some problems in order to describe the early stages of the universe. The theory of Cosmic Inflation, a phase of accelerated exponential expansion, was conceived to solve the previous ...
-
(Elsevier, 2018-05)Similar to in-store displays in brick-and-mortar stores, house ads promote a set of specific products for customers who have reached the website. In contrast to general display advertising whose primary goal is to bring ...
-
(Humana Press Inc., 2016)Tomato pomace is an abundant lignocellulosic waste stream from industrial tomato processing and therefore a potential feedstock for production of renewable biofuels. However, little research has been conducted to determine ...
-
(EDP Sciences, 2017-05)Past ultraviolet and optical observations of stars hosting close-in Jupiter-mass planets have shown that some of these stars present an anomalously low chromospheric activity, significantly below the basal level. For the ...
-
(Associação Brasileira de Polímeros, 2018-06)The effect of molecular weights and hydrolysis degrees (HD) of polyvinyl alcohol (PVA) on thermal and mechanical properties and crystallinity of polylactic acid (PLA)/PVA blends was investigated. Blends were prepared by ...
-
(Nature Publishing Group, 2018)Supermassive black holes reside in the nuclei of most galaxies. During their active episodes, black holes are powered by accretion discs where gravitational energy is converted into radiation(1). Accurately determining ...
-
(Oxford, 2021)In the new era of very large telescopes, where data is crucial to expand scientific knowledge, we have witnessed many deep learning applications for the automatic classification of lightcurves. Recurrent neural networks ...
-
(Springer Verlag, 2019)The limestone used at the Pasargadae World Heritage Site in Iran, an outstanding open-air architectural heritage site dating from the Achaemenid period (sixth century BC), has suffered weathering due to interaction with ...
-
(Cambridge University Pressjournals_subscriptions@cup.cam.ac.uk, 2020)
-
(IOP Publishing Ltd., 2017)We present the Dark Energy Camera (DECam) discovery of the optical counterpart of the first binary neutron star merger detected through gravitational-wave emission, GW170817. Our observations commenced 10.5 hr post-merger, ...
-
(IOP Publishing Ltd., 2017)We present UV, optical, and near-infrared (NIR) photometry of the first electromagnetic counterpart to a gravitational wave source from Advanced Laser Interferometer Gravitational-wave Observatory (LIGO)/Virgo, the binary ...
-
(Institute of Physics, 2017)We report the discovery of an enigmatic large-amplitude (DKs > 10.5 mag) transient event in near-IR data obtained by the VISTA Variables in the Via Lactea (VVV) ESO Public Survey. The object (designated VVV-WIT- 06) is ...
-
(Emerald Group Publishing Ltd., 2019)Purpose: The purpose of this paper is to examine the profile of entrepreneurs who failed in previous businesses, but despite their initial failure, decide to start or maintain another business. Based on the literature, ...
-
(Springer, 2021)The importance of environmental geochemistry baseline in soils of O ' Higgins Region, Chile, since it hosts in its eastern area one of the major Cu-Mo producing mines in the country, is to establish and explain relationships ...
-
(Springer Netherlands, 2019)This article elaborates the epistemic indispensability argument, which fully embraces the epistemic contribution of mathematics to science, but rejects the contention that such a contribution is a reason for granting reality ...
-
(EDP SCIENCES S A,, 2011-02)A milestone of modern cosmology was the prediction and serendipitous discovery of the cosmic microwave background (CMB), the radiation leftover after decoupling from matter in the early evolutionary stages of the Universe. ...
-
(Elsevier, 2020)The Fe-Cu Dominga deposit (2082 Mt at 23% Fe, 0.07% Cu), located in the Coastal Cordillera of northern Chile, is hosted by volcanic rocks of the Punta del Cobre Formation (131.5 +/- 1.5 Ma zircon U-Pb) and into subvolcanic ...