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Mostrando ítems 1389-1408 de 1852
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Quality of life, physical fitness and self-esteem and nutritional status in adolescents and their relationship with academic performance
(Chile. Universidad Mayor, 2019)Academic performance (AP) is conditioned by several factors and the self-esteem and health related to quality of life (HRQoL) are influential factors. The objective of the research was to determine the association between ... -
Quantifying phonon-induced non-Markovianity in color centers in diamond
(AMER PHYSICAL SOC, 2020)We propose the application of a coherence-based measure for non-Markovianity to study the dynamics of color centers in diamond, where the optical coherence between two orbital states is affected by interactions with a ... -
Quantum Discord, Thermal Discord, and Entropy Generation in the Minimum Error Discrimination Strategy
(MDPI, 2019)We study the classical and quantum correlations in the minimum error discrimination (ME) of two non-orthogonal pure quantum states. In particular, we consider quantum discord, thermal discord and entropy generation. We ... -
Quantum probe of an on-chip broadband interferometer for quantum microwave photonics
(IOP PUBLISHING LTD, 2018)Quantum microwave photonics aims at generating, routing, and manipulating propagating quantum microwave fields in the spirit of optical photonics. To this end, the strong nonlinearities of superconducting quantum circuits ... -
Questionnaire-Based Prevalence of Physical Activity Level on Adults According to Different International Guidelines: Impact on Surveillance and Policies
(HUMAN KINETICS PUBL INC, 2019)Background: The World Health Organization recommends 150 minutes of moderate to vigorous physical activity (PA) throughout the week. However, the weekly frequency of PA and how to combine moderate and vigorous PA to define ... -
Quick and Easy Modification of Glassy Carbon Electrodes with Ionic Liquid and Tetraruthenated Porphyrins for the Electrochemical Determination of Atrazine in Water
(WILEY-V C H VERLAG GMBH, 2019)Atrazine is a pesticide used to control broadleaf weeds, however its wide distribution and its high persistence in the soil and in surface waters has resulted in a public and environmental health problem. Present results ... -
Racial differences in alcohol and tobacco use in adolescence and mid-adulthood in a community-based sample
(Chile. Universidad Mayor, 2020)Purpose Smoking and alcohol use have been posited as possible contributors to racial health disparities, despite higher smoking and alcohol use among non-Hispanic White youth and young adults compared to Blacks. To further ... -
Radiografía Panorámica: Una Herramienta Invaluable para el Estudio del Componente Óseo y Dental del Territorio Maxilofacial
(SOC CHILENA ANATOMIA, 2021-01)La radiografía panorámica es probablemente el examen de rutina más solicitado por los dentistas en el mundo. Entre sus ventajas están su bajo costo, rapidez y mayor seguridad debido a que los formatos digitales han permitido ... -
Radiometric Cross-Calibration of the Chilean Satellite FASat-C Using RapidEye and EO-1 Hyperion Data and a Simultaneous Nadir Overpass Approach
(CIENCIAS, 2016)The absolute radiometric calibration of a satellite sensor is the critical factor that ensures the usefulness of the acquired data for quantitative applications on remote sensing. This work presents the results of the first ... -
Rasgos-CL: A functional trait database of Chilean woody plants
(Wiley-Blackwell Publishing Ltd, 2023-12)Motivation: Due to language and networking barriers, global initiatives to compile trait data often fail to integrate data from sources in non-English languages or scientists that largely speak and write in non-English ... -
Rational Development of a Novel Hydrogel as a pH-Sensitive Controlled Release System for Nifedipine
(MDPI, 2018)This work depicts the rational development (in-silico design, synthesis, characterization and in-vitro evaluation) of polyvinyl alcohol hydrogels (PVAH) cross-linked with maleic acid (MA) and linked to gamma-cyclodextrin ... -
Recent changes in total ice volume on Volcan Villarrica, Southern Chile
(CIENCIAS, 2015)Results obtained by the first intensive airborne surveys carried out at Volcan Villarrica (39 degrees S) in Southern Chile, are presented. These campaigns included the use of a scanner laser system, for detecting the glacier ... -
Recent deforestation drove the spike in Amazonian fires
(IOP Publishing Ltd., 2020-12)Sin resumen. -
Recent increases in depressive symptoms among US adolescents: trends from 1991 to 2018
(SPRINGER HEIDELBERG, 2019)BackgroundMental health problems and mental health related mortality have increased among adolescents, particularly girls. These trends have implications for etiology and prevention and suggest new and emerging risk factors ... -
Reciprocal grafting between clones with contrasting drought tolerance suggests a key role of abscisic acid in coffee acclimation to drought stress
(SPRINGER, 2018)The role of abscisic acid (ABA) in drought tolerance of Coffea canephora is unknown. To determine whether ABA is associated with drought tolerance and if the use of tolerant rootstocks could increase ABA and drought ...