Investigación y Desarrollo: Envíos recientes
Mostrando ítems 1641-1660 de 5743
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Article
Physicochemical and computational analysis of the melamine resin derivative for the glyphosate absorption from water using Langmuir-type model (2021)
(Springer Science and Business Media Deutschland GmbH, 2021)Conventional pesticides are biosynthetic chemicals that are effectively used for the control of weeds, diseases, and pests worldwide. Among them, glyphosate, one of the most commonly used broad-spectrum herbicides, might ... -
Article
Firm's supply chain agility enabling resilience and performance in turmoil times (2021)
(Inderscience Publishers, 2021)Facing a scenario of greater risk and turbulence, in which vulnerability and disruption events can impact firms' operations and supply chains, agility remains a key capability for its effects on performance and, especially ... -
Article
Evaluation results of an online teacher training course specialized in engineering education (2021)
(International Association of Online Engineering, 2021)The purpose of this article is to present the results of the evaluation of the implementation of a teaching training course in Engineering Pedagogy (EP) at a Chilean university of applied sciences. The research questions ... -
Article
Dispositional Mindfulness Reduces Burnout and Promotes Flourishing in Medical Students: a Two-Wave Latent Change Score Model (2021)
(Springer, 2021)Objectives: Many studies document the high prevalence of burnout among medical students. This syndrome may lead to depression, suicidal ideation, and increased academic dropout. However, there is a scarcity of evidence-based ... -
Article
Online engineering education: A proposal for specialization of the teacher training in engineering (2021)
(International Association of Online Engineering, 2021)The context of the COVID-19 pandemic produced new immediate needs in the field of university teaching related to distance learning and forces the universities to transform their “traditional” face-to-face teaching methods, ... -
Article
Resolved spectral variations of the centimetre-wavelength continuum from the ρ Oph W photodissociation (2021)
(Oxford University Press, 2021-03-01)Centimetre-wavelength radio continuum emission in excess of free-free, synchrotron, and Rayleigh-Jeans dust emission (excess microwave emission, EME), and often called 'anomalous microwave emission', is bright in molecular ... -
Article
Characterization of five Chilean agribusiness by-products and their potential use as food supplements (2021)
(United Arab Emirates University, 2021-07)Chilean agribusiness generates large quantities of by-products and they have been little studied. According to the literature they represent important sources of sugar, protein, lipid, micronutrient, fiber, and others that ... -
Article
An Overview of Ocean Climate Change Indicators: Sea Surface Temperature, Ocean Heat Content, Ocean pH, Dissolved Oxygen Concentration, Arctic Sea Ice Extent, Thickness and Volume, Sea Level and Strength of the AMOC (Atlantic Meridional Overturning Circulation) (2021)
(Frontiers Media S.A., 2021-09-21)Global ocean physical and chemical trends are reviewed and updated using seven key ocean climate change indicators: (i) Sea Surface Temperature, (ii) Ocean Heat Content, (iii) Ocean pH, (iv) Dissolved Oxygen concentration ... -
Article
Coach’s perception of parent’s attitudes in school-age sports (2021)
(MDPI, 2021-10-02)The coach-parent relationship can significantly influence the sport participation, personal development, and sports performance of young athletes. This study aimed to investigate the coach’s perception of parent’s attitudes ... -
Article
Specialized knowledge on statistical graphs by future teachers of early childhood education (2021)
(Centro de Informacion Tecnologica, 2021-10)This study aims to assess specialized knowledge on statistical graphs by 102 early childhood education future teachers from Chile. A qualitative, descriptive level methodology is employed, based on content analysis. In ... -
Article
New manufacturing challenges facing sustainability (2021)
(Elsevier Ltd, 2021-10)We sought to identify opportunities for Industry 4.0 technologies in Sustainable Manufacturing using a two-stage methodology. In the first stage, we investigated Industry 4.0, sustainability, and Smart Factories and ... -
Article
Effect of physical therapy modalities on quality of life of head and neck cancer survivors: A systematic review with meta-analysis (2021)
(MDPI, 2021-10-02)The objective was to describe the effectiveness of different physical therapy modalities to improve Quality of Life (QoL) in Head and Neck Cancer (HNC) survivors. PubMed, Scopus, Web of Science, CINAHL and Cochrane Library ... -
Article
Perception of chilean older adults in relation to health and physical exercise in pandemic Covid-19 (2021)
(Federacion Espanola de Docentes de Educacion Fisica, 2021-09-24)The purpose of this article is to understand the meaning given by elderly adults in central Chile to the period of the Covid-19 pandemic concerning health and physical exercise. From the methodological perspective, the ... -
Article
Emotions of Chilean physical education teachers in the context of pandemic: A case study (2021)
(Federacion Espanola de Docentes de Educacion Fisica, 2022)The context of the COVID-19 pandemic has had multiple consequences in formal school education, including in the subject of Physical Education. Therefore, it is considered pertinent to study them from an emotional perspective. ... -
Article
Association between exercise-induced changes in cardiorespiratory fitness and adiposity among overweight and obese youth: A meta-analysis and meta-regression analysis (2021)
(MDPI, 2020-09)The aim of this study was to determine the minimum change in cardiorespiratory fitness (CRF) required to reduce adiposity (percent body fat) in exercise programs for overweight and obese youth. Studies were identified ... -
Article
A systematic review of intervention programs that produced changes in speed and explosive strength in youth footballers (2021)
(Page Press Publications, 2021)A soccer player should possess a reasonable level of different skills and abilities, so the playing position, level of training, style of play, physical and physiological demands can influence his performance. The objective ... -
Article
Effects of gamma irradiation on instream leaf litter decomposition (2021)
(Springer Science and Business Media Deutschland GmbH, 2021)Leaf litter decomposition is a key process in stream ecosystems, the rates of which can vary with changes in litter quality or its colonization by microorganisms. Decomposition in streams is increasingly used to compare ... -
Article
Estimation of Pubertal Growth Spurt Parameters in Children and Adolescents Living at Moderate Altitude in Colombia (2021)
(Frontiers Media S.A., 2021-09-08)Objective: Knowledge of the biological parameters of pubertal growth spurt allows verification of secular changes and exploration of the timing of puberty. The aim of the study was to estimate final height, age at peak ... -
Article
How do air quality issues caused by particulate matter affect consumers’ emotional response to tourism destinations and willingness to visit? (2021)
(MDPI, 2021-10-01)This study identifies the perceived risk factors of particulate matter (PM) and the effect of the perceived risk factors of PM on the relationship between tourists’ trust and aspiration regarding the tourist destination, ... -
Article
The "Fat but Fit" Paradigm from a Children's Health-Related Quality of Life Perspective (2021)
(Mary Ann Liebert Inc., 2021-10-01)Background: The fat but fit paradigm originally argues that the detrimental influence of obesity on cardiovascular risk and mortality could be counterbalanced by normal to high cardiorespiratory fitness (CRF) levels. The ...