Browsing by Title Artículos de revistas
Now showing items 482-501 of 7545
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(AMER ECONOMIC ASSOC, 2013-10)The sensitivity of US aggregate investment to shocks is procyclical. The response upon impact increases by approximately 50 percent from the trough to the peak of the business cycle. This feature of the data follows naturally ...
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(Pergamon-Elsevier Science, 2016)Efficient processing of aggregated range queries on two-dimensional grids is a common requirement in information retrieval and data mining systems, for example in Geographic Information Systems and OLAP cubes. We introduce ...
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(Elsevier, 2016)In order to establish a production plan, an open-pit mine is partitioned into a three-dimensional array of blocks. The order in which blocks are extracted and processed has a dramatic impact on the economic value of the ...
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(EDP Sciences, 2016)AGN feedback is invoked as one of the most relevant mechanisms that shape the evolution of galaxies. Our goal is to understand the interplay between AGN feedback and the interstellar medium in M 51, a nearby spiral galaxy ...
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(MDPI, 2020)The core neoliberal strategy of Chilean agrarian politics has lasted now for more than 30 years. Despite minor reforms, its fundamental pillars remain in place. While members of the agribusiness sector consider this strategy ...
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(American Geophysical Union, 2015)Episodic air quality degradation due to particles occurs in multiple cities in central and southern Chile during the austral winter reaching levels up to 300-800 mu g/m(3) hourly PM2.5, which can be associated with severe ...
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(Blackwell Publishing Ltd, 2019)The glaciers of Patagonia are the largest in South America and are shrinking rapidly, raising concerns about their contribution to sea level rise in the face of ongoing climatic change. However, modeling studies forecasting ...
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(ELSEVIER, 2008-07)We use a model of vertical relations between two congestible airports and an airline oligopoly to examine, both analytically and numerically, how deregulation may affect airports prices and capacities. We find that: (i) ...
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(IEEE, 2017)As the use of the Internet grows every year, ecommerce’s usage does as well. There is a tough competition between companies to be able to attract customers to use their services.The design of a website is crucial to ...
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(Elsevier Espana S.L., 2019)Alcohol-related liver disease (ALD) is a major cause of advanced chronic liver disease in Latin-America, although data on prevalence is limited. Public health policies aimed at reducing the alarming prevalence of alcohol ...
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(IOP, 2021)We present a real-time stamp classifier of astronomical events for the Automatic Learning for the Rapid Classification of Events broker, ALeRCE. The classifier is based on a convolutional neural network, trained on alerts ...
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(BIRKHAUSER VERLAG AG, 2006-05)It will be shown that every minimal Cantor set can be obtained as a projective limit of directed graphs. This allows to study minimal Cantor sets by algebraic topological means. In particular, homology, homotopy and ...
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(ELSEVIER, 2006-08-15)A circular-arc graph is the intersection graph of arcs on a circle. A Helly circular-arc graph is a circular-arc graph admitting a model whose arcs satisfy the Helly property. A clique-independent set of a graph is a set ...
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(SIAM publications, 2013)We present an efficient algorithm to find nonempty minimizers of a symmetric submodular function f over any family of sets I closed under inclusion. Our algorithm makes O(n(3)) oracle calls to f and I, where n is the ...
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Alkanethiol self-assembled monolayer on copper polycrystalline thin films: influence on resistivity (Elsevier, 2018)Thin polycrystalline copper films of low surface roughness and low electrical resistivity were deposited by physical vapor deposition onto mica at room temperature and in thicknesses ranging from 10 to 80 nm. The crystalline ...
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(MDPI, 2021)Three photobicyclized benzodithienoquinolizinium tetrafluoroborates (BPDTQBF4) were prepared and evaluated by UV–Vis and fluorescence spectral, electrochemical analysis, and by theoretical calculations as possible organic ...
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(EDP SCIENCES, 2011-01)Aims. We study the Galactic large-scale synchrotron emission by generating a reliable all-sky spectral index map and temperature map at 45 MHz. Methods. We use our observations, the published all-sky map at 408 MHz, ...
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(2001)We publish 622 CCD photometric sequences in the Johnson-Kron-Cousins standard system, distributed both in the northern and southern hemispheres, useful for the calibration of photographic photometry of Schmidt survey ...
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(Springer-Verlag, 2013-03)n this paper we consider the problem of allocating personal TV advertisements to viewers. The problem's input consists of ad requests and viewers. Each ad is associated with a length, a payment, a requested number of ...
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(Springer, 2015)In this paper we study distributed algorithms on massive graphs where links represent a particular relationship between nodes (for instance, nodes may represent phone numbers and links may indicate telephone calls). ...
