Browsing by Author "XX677230"
Now showing items 1-20 of 68
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(Emerald, 2016)Purpose - Overweight, obesity, and physical inactivity have in recent years become an important public health problem worldwide. Investigations that study obesity using a systemic approach in low- and middle-income countries ...
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(ACS Publications, 2013-02-28)The dynamics of the collision process of a titanium dimer against a C-20 nanocluster in the bowl configuration is simulated by means ab initio molecular dynamics, focusing our interest on the first steps to synthesize ...
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(2013)The dynamics of the collision process of a titanium dimer against a C 20 nanocluster in the bowl configuration is simulated by means ab initio molecular dynamics, focusing our interest on the first steps to synthesize ...
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(WILEY-BLACKWELL, 2010-06-22)We study the effect of the non-linear process of ambipolar diffusion (joint transport of magnetic flux and charged particles relative to neutral particles) on the long-term behaviour of a non-uniform magnetic field in a ...
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(Nature, 2020)The explosion of network science has permitted an understanding of how the structure of social networks affects the dynamics of social contagion. In community-based interventions with spill-over effects, identifying ...
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(Royal Soc Chemistry, 2018)The bending process of 2D materials, subject to an external force, is investigated, and applied to graphene, molybdenum disulphide (MoS2), and imogolite. For graphene we obtained 3.43 eV angstrom(2) per atom for the bending ...
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(Elsevier, 2013)
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(2007)A bidimensional cellular automaton model is used to simulate the process of evacuation of pedestrians in a room with fixed obstacles. A floor field is defined so that moving to a cell with lower floor field means approaching ...
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Characterization of the nontrivial and chaotic behavior that occurs in a simple city traffic model (2010)Urban traffic is interesting not only due to its obvious social and economical impact, but also due to its complexity. It is not unusual for drivers to get stuck in a traffic jam that apparently emerged from nowhere. ...
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(2009)The dispersion relation for circularly polarized electromagnetic waves propagating in the direction of an external magnetic field in a relativistic electron-positron plasma with arbitrary constant drift velocities is ...
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(Elsevier, 2014)We simulate traffic in a city by means of the evolution of a row of interacting cars, using a cellular automaton model, in a sequence of traffic lights synchronized by a ‘‘green wave’’. When our initial condition is a ...
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Contribution of Latin–American scientists to the study of the magnetosphere of the Earth. A review (Elsevier, 2016)Since the very beginning of the space era, Latin–American scientists have been contributing to the understanding of the magnetosphere of the Earth. This review summarizes some significant contributions in this field with ...
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(Nature Publishing Group, 2017)The problem of controlling the quantum state of a system is investigated using a time varying potential. As a concrete example we study the problem of a particle in a box with a periodically oscillating infinite square-well ...
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(Springer, 2017)We explore bursty multiscale energy dissipation from earthquakes flanked by latitudes 29 degrees S and 35.5 degrees S, and longitudes 69.501 degrees W and 73.944 degrees W (in the Chilean central zone). Our work compares ...
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(Walter de Gruyter, 2016)We characterize, by means of the definition of a generalized distance, the differences and similarities between binary nanoclusters. To define analytically, and to compute numerically this distance, we have generalized an ...
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(2009)The determination of the spatial distributions that atoms adopt to form condensed matter is a problem of crucial importance, since most physical properties depend on the atomic arrangement. This is especially relevant for ...
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(Springer, 2012-02)One promising public health intervention for promoting physical activity is the Ciclovia program. The Ciclovia is a regular multisectorial community-based program in which streets are temporarily closed for motorized ...
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(Universidad de Chile, 2012)Un baño bacteriano consiste en un fluido en el que nadan bacterias. Este nado produce agitaciones en el sistema, induciendo un campo de velocidades en él. En esta tesis, se presenta un estudio hidrodinámico de las ...
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(European Geosciences Union, 2018)We studied the temporal evolution of fractality for geomagnetic activity, by calculating fractal dimensions from the Dst data and from a magnetohydrodynamic shell model for turbulent magnetized plasma, which may be a useful ...
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(IOP Publishing, 2020)Wave-particle interactions are believed to be one of the most important kinetic processes regulating the heating and acceleration of solar wind plasma. One possible explanation for the observed preferential heating of alpha ...
