Browsing by Title
Now showing items 1924-1943 of 2918
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Near-infrared and optical emission of WASP-5 b
(2022)Context. Thermal emission from extrasolar planets makes it possible to study important physical processes in their atmospheres and derive more precise orbital elements. Aims. Byusing newnear-infrared (NIR) and optical data, ... -
New a Posteriori Error Estimator for an Augmented Mixed FEM in Linear Elasticity
(2013)We consider an augmented mixed finite element method applied to the linear elasticity problem with non-homogeneous Dirichlet boundary conditions and derive an a posteriori error estimator that is simpler and easier to ... -
New a posteriori error estimator for an stabilized mixed method applied to incompressible fluid flows
(2019-06-15)We consider an augmented mixed finite element method for incompressible fluid flows and develop a simple a posteriori error analysis. We obtain an a posteriori error estimator that is reliable and locally efficient. We ... -
New Data on the Systematics of Comb-fin Squids Chtenopteryx spp. (Cephalopoda: Chtenopterygidae) from the Canary Islands
(2018-07-11)The systematics of the comb-fin squid species is problematic and poorly resolved. In total, 53 specimens of comb-fin squids (Chtenopteryx spp.) were caught at depths ranging from 30 to 800 m off the Canary Islands (NE ... -
New evidence of the effect of the chemical structure of activated carbon on the activity to promote radical generation in an advanced oxidation process using hydrogen peroxide
(2018-03-15)The influence of seven commercial activated carbons (ACs) to promote hydrogen peroxide decomposition and radical generation is assessed during four operating cycles. The amount of generated hydroxyl radicals is estimated ... -
New fully-mixed finite element methods for the Stokes-Darcy coupling
(2015)In this paper we introduce and analyze two new fully-mixed variational formulations for the coupling of fluid flow with porous media flow. Flows are governed by the Stokes and Darcy equations, respectively, and the ... -
New host and geographical record for Mooleptus rabuka (Nematoda: Gnathostomatidae) in the largenose catshark Apristurus nasutus (Carchariniformes: Scyliorhinidae) off Juan Fernández Archipelago, Chile
(2012)The adult stage of the gnathostomatid nematode Mooleptus rabuka, is recorded for the first time from the stomach and intestine of the largenose catshark Apristurus nasutus, off Juan Fernández Archipelago, Chile. Morphology ... -
New insight of the influence of acidic surface sites of zeolite on the ability to remove gaseous ozone using operando DRIFTS studies
(2020-01-01)Recently, natural zeolites have started to be used as alternative materials for ozone abatement from working environments. In this study, a surface response methodology based on a D-Optimal design is applied to develop ... -
New insights into the distribution, physiology and life histories of South American galaxiid fishes, and potential threats to this unique fauna
(2020-05)South American galaxiids occupy both Patagonia and the ichthyogeographic Chilean Province, encompassing glacial Andean deep lakes, shallow plateau lakes, reservoirs, short Pacific rivers and long Atlantic rivers. The total ... -
New polymorphic microsatellite markers for the pelagic fish Normanichthys crockeri
(2015)The coastal pelagic fish Normanichthys crockeri inhabits the southeast Pacific coast and is a monotypic species of the Normanichthyidae family. Its ecologically and economic importance, and the high fishing pressure it is ... -
New records of orange roughy Hoplostethus atlanticus juveniles in Chile.
(2010)Orange roughy Hoplostethus atlanticus juveniles <24 cm fork length (LF) (10–17 years old) wererecorded for the first time in Chile, when 10 specimens were collected on the continental slope andseamount JF2 in Juan Fernandez ... -
Nilpotent Global Centers of Linear Systems with Cubic Homogeneous Nonlinearities
(2020-01)In this paper, we characterize the global nilpotent centers of polynomial differential systems of the linear form plus cubic homogeneous terms. -
Nitrogen turnover and N2O/N-2 ratio of three contrasting tropical soils amended with biochar
(2019-08)Biochar has been reported to reduce emission of nitrous oxide (N2O) from soils, but the mechanisms responsible remain fragmentary. For example, it is unclear how biochar effects on N2O emissions are mediated through biochar ... -
Nivel de actividad física en niños entre 10 y 13 años de edad de un establecimiento con nivel socioeconómico medio-alto en comparación a niños de un establecimiento con nivel socioeconómico medio-bajo de la Ciudad de Concepción
(2016-12)Las enfermedades cardiovasculares (ECV) constituyen la primera causa de mortalidad en Chile, cuya presencia está determinada por Factores de Riesgo (FR), que pueden ser revertidos con la adopción de Estilos de vida (EV) ... -
Nivel de actividad física en personas mayores chilenas que han sufrido caídas
(2021-08)Las caídas limitan las actividades de la vida diaria. Actualmente se desconoce cómo los niveles de actividad física (AF) varían luego de sufrir una caída. Objetivo: investigar los niveles de práctica de actividad física ... -
Nivel de actividad física y sedentarismo en personas con diagnóstico de cáncer en Chile
(2020-02)Background: One of the side effects of cancer treatment is a low level of physical activity (PA) due to fatigue and pain. Aim: To quantify PA levels in Chilean people with cancer. Material and Methods: Analysis ... -
Nivel de actividad física, composición corporal, consumo de tabaco y su relación con la capacidad aeróbica en mujeres de 18 a 25 años de edad pertenecientes a la Universidad Católica de la Santísima Concepción: serie de casos
(2018-07-11)Introducción: Las enfermedades cardiovasculares se han asociado diversos factores como la capacidad aeróbica, composición corporal, consumo de tabaco y nivel de actividad física, los que pueden verse influenciados negativamente ... -
Nivel de conciencia de la actividad y creación de información en medios digitales. Un estudio de caso en estudiantes universitarios chilenos
(2021-08)Los objetivos de esta investigación fueron establecer el grado de conciencia de la actividad en la red en un grupo de estudiantes universitarios y, además, determinar cómo dicho grado condiciona la creación de información. ... -
Nivel de conocimiento del diseño universal para el aprendizaje en profesores de Educación Diferencial de Colegios de Concepción y San Pedro de la Paz
(2017-09)El enfoque de esta investigación fue de carácter cuantitativo, congruente con un estudio de tipo descriptivo, cumpliendo con el propósito que fue describir el nivel de conocimiento respecto al Diseño Universal para el ...