Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 2336-2355 of 20501
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(Amer Physical Soc, 2015)It was recently shown that a large value of the tensor to scalar ratio r implies a constraint on the minimum value of the sound speed c(s) of primordial curvature perturbations during inflation that is stronger than current ...
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(Springer, 2015)A b-coloring of a graph is a proper coloring such that every color class contains a vertex that is adjacent to all other color classes. The b-chromatic number of a graph , denoted by , is the maximum number such that admits ...
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(Universidad de ChilePrograma Cybertesis, 2009)
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(Universidad de Chile, 2018)Con motivo de la construcción de la extensión de la Línea 3 de Metro hacia Quilicura, surge la necesidad de estimar los parámetros geotécnicos de los suelos finos del noroeste de Santiago. Para realizar esta estimación se ...
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(Elsevier B.V., 2019)Backyard production systems (BPS) that involve poultry are a good way to improve food security and poverty alleviation. Few studies have been carried out to quantify the contribution of poultry production to these households ...
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(Royal Society of Chemistry, 2020)We confine a dense suspension of motileEscherichia coliinside a spherical droplet in a water-in-oil emulsion, creating a "bacterially" propelled droplet. We show that droplets move in a persistent random walk, with a ...
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(Nature Publishing Group, 2019)The rhizosphere is considered the primary place for soil microbiome differentiation and plays a key role in plant survival, especially for those subjected to environmental stress. Using high-throughput sequencing of the ...
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(Frontiers Media S.A., 2019)Copyright © 2019 Aguilar, Dorador, Vila and Sommaruga.Species of the genus Nostoc (Cyanobacteria) can form large colonies of up to several centimeters in diameter that may represent a unique habitat for bacteria in ...
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(Nature Publishing Group, 2019)© 2018, International Society for Microbial Ecology.Larger volumes of sea ice have been thawing in the Central Arctic Ocean (CAO) during the last decades than during the past 800,000 years. Brackish brine (fed by meltwater ...
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(2007)Rape] reservoir is an eutrophic system in Chile that has undergone a series of anthropogenic impacts in recent decades. To provide a better understanding of the processes occurring in the reservoir, we examined bacterial ...
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(ELSEVIER, 2003-10)The oxidation of ferrous iron by Acidithiobacillus ferrooxidans in the pH range 2.5-7.0 was characterized. In order to measure the rate of bacterial oxidation of ferrous iron with A. ferrooxidans in this high pH range, a ...
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(British Editorial Society of Bone and Joint Surgery, 2019)The purpose of this study was to examine the bactericidal efficacy of hydrogen peroxide (H 2 o 2 ) on Cutibacterium acnes (C. acnes). We hypothesize that H 2 o 2 reduces the bacterial burden of C. acnes. Methods The effect ...
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(Universidad de Chile, 2016)En el margen occidental de Sudamérica desde los 33º S hasta los 46º S, ocurre una subducción oblicua dextral entre la placa de nazca y la placa sudamericana. Esta configuración tiene como resultado una cadena volcánica de ...
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(Universidad de Chile, 2006)Esta tesis apunta a entregar las bases para el desarrollo de los algoritmos de balance de carga para el modelo de objetos activos definido por ProActive en el contexto de las redes a gran escala (grillas). ProActive es ...
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(Universidad de Chile, 2016)El Salar del Huasco, ubicado en la Región de Tarapacá, Chile, constituye un sistema de gran relevancia ambiental al albergar ciertos ecosistemas vitales para la sobrevivencia de especies en estado vulnerable, como por ...
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(Universidad de Chile, 2015)Basado en el actual escenario minero, donde existe un aumento en la ejecución de megaproyectos de explotación y procesamiento de minerales, expertos a nivel mundial han realizado un análisis crítico a los indicadores ...
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(Universidad de ChileCyberDocs, 2012)Este trabajo de titulación tuvo por objetivos diseñar un Balanced Scorecard para la empresa de Asistencia Técnica en Educación Master7. El Balanced Scorecard surgió de la necesidad de la empresa de contar con indicadores ...
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(Springer, 2020)Dealing with imbalanced datasets is a recurrent issue in health-care data processing. Most literature deals with small academic datasets, so that results often do not extrapolate to the large real-life datasets, or have ...
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(Association for Computing Machinery, 2020)
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(ELSEVIER, 2010)It is generally thought within the meshing tool community that object-orientation and other decoupling techniques penalize performance when they are used for building concrete meshing tools. In this paper we show that ...