Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 2644-2663 of 20545
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(Universidad de ChilePrograma Cybertesis, 2008)
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Campañas electorales bajo los ojos de la teoría de juegos: modelos de comportamiento y equilibrios (Universidad de Chile, 2019)Existen casi 100 países en el mundo con sistemas catalogados como democráticos, en los cuales se celebran periódicamente elecciones populares para elegir a sus líderes políticos. Una parte importante de las elecciones son ...
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(Universidad de Chile, 2017)En escenarios ubicuos, conocer la posición de un dispositivo es imperativo para proveer al usuario de servicios personalizados basados en location awareness, un aspecto de diseño clave en la mayoría de las aplicaciones ...
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(Springer, 2014)In most multiple-point simulation algorithms, all statistical features are provided by one or several training images (TI) that serve as a substitute for a random field model. However, because in practice the TI is always ...
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(Elsevier B.V., 2019)© 2019 Elsevier B.V. The usual answer to the question stated in the title of this manuscript would be a definitive no due to the high stability of dissolved sulphide ions in water under strong alkaline conditions; nevertheless, ...
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(Springer, 2011-03)Development of technologies based on localized states depends on our ability to manipulate and control these nonlinear structures. In order to achieve this, the interactions between localized states and control tools should ...
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(American Chemical S, 2013)The stability and reactivity of planar starlike C6Li6 and its hydrogen-adsorbed analogue were analyzed using density functional theory and ab initio molecular dynamics calculations. The ability of the C6Li6 system to ...
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(IOP Publishing, 2016)A very general cosmological consideration suggests that, along with galactic dark matter halos, much smaller dark matter structures may exist. These structures are usually called ‘clumps’, and their mass extends to 10−6M⊙ ...
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(Elsevier Ltd, 2018)State-owned enterprises may be strategic for many countries. For political or practical reasons some of these enterprises may remain wholly state-owned (WSOE), like PEMEX in Mexico or CODELCO in Chile. For this group, the ...
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(2010)In this paper we present radiative-convective simulations to test the idea that tropical cirrus clouds, acting as a negative feedback on climate, can provide a solution to the faint young Sun paradox. We find that global ...
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(IOP, 2022)Constraints on the cosmological concordance model parameters from observables at different redshifts are usually obtained using the locally measured value of the gravitational constant G(N). Here we relax this assumption, ...
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(Elsevier, 2014)We examine whether the dynamics of the implied volatility surface of individual equity options contains exploitable predictability patterns. Predictability in implied volatilities is expected due to the learning behavior ...
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(Oxford University Press, 2018)In large optical surveys at high redshifts (z > 2), the C IV λ1549 broad emission line is the most practical alternative to estimate the mass (MBH) of active supermassive black holes. However, mass determinations obtained ...
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(Universidad de Chile, 2020)Actualmente las tecnologías de reconocimiento automático de voz tienen un rol protagónico en el desarrollo de plataformas para la interacción entre personas y sistemas robóticos. Considerando que el lenguaje hablado es ...
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(Taylor and Francis Ltd, 2019)Background: Robinson Crusoe Island is a geographically and socially isolated settlement located over 600 km west of the Port of Valparíso, Chile. An unusually high incidence (30%) of the Chilean equivalent of developmental ...
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(ASSOC COMPUTING MACHINERY, 2017)Existential blank nodes greatly complicate a number of fundamental operations on RDF graphs. In particular, the problems of determining if two RDF graphs have the same structure modulo blank node labels (i.e. if they are ...
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(Springer Verlag, 2018)Caching in the context of expressive query languages such as SPARQL is complicated by the difficulty of detecting equivalent queries: deciding if two conjunctive queries are equivalent is NP-complete, where adding further ...
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(Universidad de Chile, 2023)SPARQL es el lenguaje de consulta est´andar para RDF de acuerdo al World Wide Web Consortium (W3C). Es un lenguaje de consulta altamente expresivo que contiene las operaciones est´andares del ´algebra relacional tales ...
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(Universidad de Chile, 2018)SPARQL es el lenguaje de consulta estándar para RDF, definido por el World Wide Web Consortium. Presentemente, hay una gran cantidad de servicios de consulta de SPARQL en la Web. También hay una gran demanda por estos ...
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(Universidad de Chile, 2012)Se ha sugerido que el espesor óptico de aerosoles (AOD) derivado a partir de sensores a bordo de satélites puede ser un complemento a las mediciones superficiales de concentración de aerosoles en la capa límite. Se explora ...