Browsing by Title
Now showing items 42112-42131 of 91997
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(Nature, 2020)Fatty acids have been widely used as trophic biomarkers in marine mammals. However, for the South American sea lion, the most abundant otariid in the eastern South Pacific, there is no information about blubber fatty acids ...
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(Soc. Médica Santiago, 2021)In patients with severe COVID-19, it has been proposed as mechanism of respiratory failure, intra and extrapulmonary shunt. However, there are no reported or documented cases of this mechanism. Also, there are studies ...
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(Elsevier, 2013)The matching number of a graph is the maximum size of a set of vertex-disjoint edges. The transversal number is the minimum number of vertices needed to meet every edge. A graph has the König–Egerváry property if its ...
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(Universidad de Chile. Centro de Derecho Ambiental, 2020)
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(Society for Industrial and Applied Mathematics, 2013)It is well known that in finite graphs, large complete minors/topological minors can be forced by assuming a large average degree. Our aim is to extend this fact to infinite graphs. For this, we generalize the notion of ...
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(Copernicus, 2022)The objective of this work is to analyse the density structure of the continental forearc in the northern segment of the 1960 Mw 9.6 Valdivia earthquake. Regional 2D and local 3D density models have been obtained from ...
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(Frontiers Media, 2022)Late Paleozoic to early Mesozoic subduction complexes formed during the evolution of southwestern Gondwana and extensively crop out along the Chilean continental margin. Recent findings in northern Patagonia (40 degrees-43 ...
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(Universidad de Chile, 2016-03)In this article we evaluate, in several dimensions, the ability of two sentiment indicators, consumers and business, to forecast year-on-year variation of Chilean activity. We do in-sample and out-of-sample exercises to ...
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(Universidad de Chile. Facultad de Economía y Negocios, 2008)In this study we examine different methodologies to estimate earnings. More specifically, we evaluate the viability of Genetic Programming as both a forecasting model estimator and a forecastcombining methodology. When ...
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(2008)This paper analyzes recursive and rolling neural network models to forecast one-step-ahead sign variations in gold price. Different combinations of techniques and sample sizes are studied for feed forward and ward neural ...
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(Elsevier B.V., 2019)We explore the ability of core inflation to predict headline CPI annual inflation for a sample of eight developing economies in Latin America over the period January 1995–May 2017. Our in-sample and out-of-sample results ...
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(MDPI, 2021)Foot traffic, conversion rate, and total sales during a period of time may be considered to be important indicators of store performance. Forecasting them may allow for business managers plan stores operation in the near ...
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(AAGR Aerosol and Air Quality Research, 2018)© Taiwan Association for Aerosol Research. We present the results of a neural network model designed for the forecasting of hourly PM2.5 concentrations in Santiago, Chile. The study focuses on the observed values at two ...
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(OGS, Istituto Nazionale di Oceanografia e Geofisica Sperimentale, 2017)The Mehdiabad complex deposit is located 116 km SE of Yazd, in the structural zone of central Iran. At this deposit, important decisions are often based on the grades of multiple elements (zinc, lead, and silver). In ...
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Forecasting the northern African dust outbreak towards Europe in April 2011: a model intercomparison (European Geosciences Union, 2016)In the framework of the World Meteorological Organisation's Sand and Dust Storm Warning Advisory and Assessment System, we evaluated the predictions of five state-of-the-art dust forecast models during an intense Saharan ...
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(Universidad de Chile. Facultad de Economía y Negocios, 2007-12)Wage inequality in Chile has remained high for decades and it is currently at the center of the political agenda. Increasing education of workers is expected to contribute to reduce wage inequality. Based on historical ...
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(Universidad de Chile, 2019-11)Utilizing data for developing countries manufacturing rms we construct and estimate the impact of an exogenous foreign market size measure on rm inno- vation on the extensive margin. Our data allows us to di erentiate ...
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(John Wiley, 2015)This paper uses plant-level data from the manufacturing sector of Chile to investigate how changes in the real exchange rate affect the decision to purchase foreign technologies through licensing. Theoretically, a real ...
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(Asociacion Paleontologica Argentina, 2017)Many dinosaur skeletons show evidence of behavior, including feeding, predation, nesting, and parental care. The resting posture of the forelimbs has been studied in some theropod species, in relation to the acquisition ...
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(Brill, 2020)Alerce (Fitzroya cupressoides (Mol.) Johnst.) and Guaitecas cypress (Pilgerodendron uviferum (Don) Florin) are two of the three closely-related species of conifers in the Cupressaceae that are endemic to southern Chile and ...
