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Mostrando publicaciones 4595-4614 de 5082
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Synthesis of polyhydroxyalkanoates through the biodegradation of poly(cis-1,4-isoprene) rubber
(2019)The search of alternative substrates for the synthesis of polyhydroxyalkanoates (PHA) has become an important factor in order to decrease the production costs. Therefore, the use of industrial by-products or waste materials ...
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Synthesis of pyrazolo-fused 4-azafluorenones in an ionic liquid. mechanistic insights by joint studies using dft analysis and mass spectrometry
(2019)A series of pyrazolo-fused 4-azafluorenones (indeno[1,2-b]pyrazolo[4,3-e]pyridines, IPP) were synthesized via the three-component reaction between arylaldehydes, 3-methyl-1H-pyrazol5-amine and 1,3-indanedione in an ionic ...
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Synthesis, x-ray diffraction, and raman spectroscopy of AgSnBiSe3 and AgSnBiSe2S systems
(2019)AgSnBiSe3 and AgSnBiSe2S were prepared by solid state reactions at 950 °C. The phases were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), and Raman spectroscopy. The samples were ...
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Synthesising performance in the construction industry: an analysis of performance indicators to promote project improvement
(2020)Purpose: There is a long-standing interest in performance improvement within the construction industry. Approaches based upon cost, time and quality (often called the Iron Triangle), have been the focus of attention despite ...
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Systematic mapping on social media and its relation to business
(2018)The aim of this study is to analyse the reach of existing investigation on social media and its relation to companies throughout 2014–2015. To achieve the proposed, the study proceeds in classifying such information and ...
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Systematic review of aquatic physical exercise programs on functional fitness in older adults
(2021)The practice of physical exercise is recommended in the prevention of the deterioration of neuromuscular functions in aging. The objectives of this systematic review were to describe the protocols used and the functional ...
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Systematic review of the anthropometric profile of female futsal players 2010-2020
(2023)The objective was to summarize the scientific literature on the anthropometric characteristics of female futsal players. A systematic review documentary study was carried out. SCOPUS, PUBMED and SCIELO databases were used ...
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Las tablas estadísticas en libros de texto de educación primaria en México
(2019)En este artículo mostramos los resultados del análisis de las actividades que se relacionan con las tablas estadísticas en libros de texto de Educación Primaria en México. Para ello, realizamos un análisis de contenido de ...
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Taking care of the enemy: egg predation by the darwin wasp tromatobia sp. (ichneumonidae) on the cobweb spider chrysso compressa (araneae, theridiidae)
(2023)Some wasp species use spiders as food resources, overcoming several anti-predator barriers that are exerted by spiders. Tromatobia ichneumonid wasps are spider egg predators that usually attack Araneidae species, although ...
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Un taller de educación ambiental como recurso didáctico para fomentar valores pro-ambientales en primer y segundo año de educación básica colegio rural multigrado
(Universidad Católica del Maule, Facultad de Ciencias de la Educación, Escuela de Pedagogía en Educación General Básica con mención en Ciencias Naturales, 2016)La siguiente investigación tiene como propósito generar un cambio en los valores pro-ambientales de estudiantes de primer y segundo año básico pertenecientes a una escuela rural multigrado de la comuna de Sagrada Familia, ...
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Targeting human glucocorticoid receptors in fear learning: A multiscale integrated approach to study functional connectivity
(2024)Fear extinction is a phenomenon that involves a gradual reduction in conditioned fear responses through repeated exposure to fear-inducing cues. Functional brain connectivity assessments, such as functional magnetic resonance ...
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Targeting n-3 polyunsaturated fatty acids in non-alcoholic fatty liver disease
(2020)Background: Non-Alcoholic Fatty Liver Disease (NAFLD) is characterized by abnormal hepatic accumulation of triacylglycerides in the absence of alcohol consumption, in association with Oxidative Stress (OS), a pro-inflammatory ...
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Task-related modulation of motor response to emotional bodies: A TMS motor-evoked potential study
(2024)Exposure to emotional body postures during perceptual decision-making tasks has been linked to transient suppression of motor reactivity, supporting the monitoring of emotionally relevant information. However, it remains ...
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Taxonomic notes and corrigendum for the manuscript entitled "Ichneumonid wasps of the subfamily Mesochorinae (Hymenoptera: Ichneumonidae): new replacement names, combinations and an updated key to the world genera" Araujo et al. (2018), Zootaxa, 4521:052-060
(2018)Mesochorinae is a widely distributed subfamily of ichneumonid wasps with approximately 900 described species (Yu et al., 2012), of which almost 90% belong to the cosmopolitan genus Mesochorus Gravenhorst (Broad et al., ...
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Taxonomic revision of Lepidura Townes, 1971 (Hymenoptera: Ichneumonidae: Mesochorinae) with the description of three new species, new distribution records and a key to the all known species
(2018)A taxonomic review of Lepidura Townes is presented, with three new species described. The following species are recognized: L. abbreviata Dasch, L. callaina Dasch, L. collaris Townes, L. improcera Dasch, L. mallecoensis ...
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Teach data structures by using logical-mathematical object oriented formalism and several programing languages
(2019)In this work, a method to teach data structures based on a novel logical-mathematical object oriented framework and several programming languages to develop the solutions is presented. The logical-mathematic formalism helps ...
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Teacher self-efficacy in music teaching: systematic literature review 2011-2021
(2022)International literature has reported that teachers present deficiencies and insecurities in teaching music; consequently, music is not taught competently and appropriately. Self-efficacy is the belief in one's ability ...
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Teacher Vocational Scholarship as a predictor of higher academic achievement in a methodology module
(Universidad Católica del Maule, Facultad de Ciencias de la Educación, 2015)Actualmente, la educación chilena necesita mejorar la calidad de los profesores que trabajan en el sistema educativo, debido a los resultados deficientes que se han registrado en pruebas nacionales estandarizadas, y a la ...
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Teachers’ conceptions of music teaching: A systematic literature review 2010-2020
(2022)This article provides an overview of research in music education between 2010 and 2020 and affords a systematic review of literature related to the experiences of teachers in teaching music in the classroom. The literature ...