Repositorio UMAYOR: Envíos recientes
Mostrando ítems 3741-3760 de 8200
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The form of government in modern Chile: a case of balanced latin-american presidentialism
(CORP UNIV REPUBLICANA, 2019)This paper deals with the form of government existing in the Chilean Constitution, in the light of Latin American presidentialism, as a dogmatic category of comparative law. It is intended to prove that the Chief Executive ... -
CDIO Project Approach to Design Polynesian Canoes by First-Year Engineering Students
(TEMPUS PUBLICATIONS, 2019)A design of a nautical project using the active learning method based on projects, was developed and implemented in two universities in Chile. The main objective of this research is the search of learning methodologies ... -
Old-growth Index: a tool to evaluate developmental stages in native forests in the lowlands of south-central Chile
(UNIV AUSTRAL CHILE, FAC CIENCIAS FORESTALES, 2019)In the lowlands of south-central Chile, old-growth forests are scarce, whereas secondary forests are more frequent. The ecosystem services provided by these secondary forests differ from those associated with old-growth ... -
Hermetism variation in Camponotus Morosus (hymenoptera: formicidae) with the age of homospecific intruding ants
(UNIV CONCEPCION, CAMPUS CHILLAN, 2019)Ants present hermetism, that is, they recognize and discriminate individuals alien to the colony, even at a homospecific level, which results in aggressive reactions against intruders, varying with their age. To evaluate ... -
EFFECT OF Melanaphis donacis Passerini (HEMIPTERA: APHIDIDAE) ON BIOMASS OF Arundo donax L. (Poaceae)
(UNIV CONCEPCION, CAMPUS CHILLAN, 2019)Giant reed, Arundo donax (L.), is known for its potential as a bioenergy crop. To evaluate the effect of the aphid Melanaphis donacis (Passerini) on plants growing in the Metropolitan Region of Chile, three treatments with ... -
The Profit Motive in the Crime of Migrant Smuggling: Critical Analysis of European Legislation
(UNIV REPUBLICA, FAC DERECHO, 2019)The present paper critically analyzes the European legislation on smuggling of migrants. According to the author's opinion, the communitarian legislator and the majority of the European countries have confused this specific ... -
Implementation of citizen participation in local governments in chile: the case of Santiago
(UNIV AUTONOMA CHILE, INST CHILENO ESTUDIOS MUNICIPALES, 2019)In Chile, citizen participation has gradually acquired greater importance as a legitimate mechanism to influence public affairs. However, at the local level the establishment of institutional citizen participation has ... -
Boldo, Its Secondary Metabolites and their Derivatives
(BENTHAM SCIENCE PUBL LTD, 2019)Boldo leaves (Boldo folium, from Peumus boldus Mol.) are very frequently used as a medicinal herb in Chile and are exported to many countries to be used in teas or as extracts included in herbal remedies, primarily as an ... -
Spirometric values in healthy preschool children
(SOC CHILENA PEDIATRIA, 2019)Introduction. Spirometry is the most commonly used test to evaluate lung function. Foreign reference standards are currently available for preschool children. Objectives: 1. To measure spirometric variables in healthy ... -
Differences in knee sensorimotor control by physical activity level and sex
(ATHA COMUNICACAO & EDITORA, 2019)Objective: The aim of this study was to compare the differences in knee sensorimotor control between healthy men and women by measuring the joint position sense (JPS), sensation of muscle tension (steadiness), and onset ... -
SYSTEMATIC REVIEW OF YURCHENKO VAULT KINETIC AND KINEMATIC INDICATORS
(UNIV LJUBLJANA, FAC SPORT, 2019)The aim of this article was based on determining the most relevant kinematic indicators in the Yurchenko vault technique, using the mechanical purposes of each phase as linking elements. A systematic qualitative review was ... -
TRY plant trait database - enhanced coverage and open access
(Wiley-Blackwell, 2020)Plant traits-the morphological, anatomical, physiological, biochemical and phenological characteristics of plants-determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem ... -
Green Edge ice camp campaigns: understanding the processes controlling the under-ice Arctic phytoplankton spring bloom
(COPERNICUS GESELLSCHAFT MBH, 2020)The Green Edge initiative was developed to investigate the processes controlling the primary productivity and fate of organic matter produced during the Arctic phytoplankton spring bloom (PSB) and to determine its role in ... -
Climatic vulnerabilities and ecological preferences of soil invertebrates across biomes
(WILEY, 2020)Unlike plants and vertebrates, the ecological preferences, and potential vulnerabilities of soil invertebrates to environmental change, remain poorly understood in terrestrial ecosystems globally. We conducted a cross-biome ... -
Mantoniella beaufortii and Mantoniella baffinensis sp. nov. (Mamiellales, Mamiellophyceae), two new green algal species from the high arctic(1)
(WILEY, 2020)Members of the class Mamiellophyceae comprise species that can dominate picophytoplankton diversity in polar waters. Yet, polar species are often morphologically indistinguishable from temperate species, although clearly ... -
Factors associated with sarcopenia: A cross-sectional analysis using UK Biobank
(ELSEVIER IRELAND LTD, 2020)Introduction: The critical sociodemographic, lifestyle and diseases factors influencing sarcopenia, defined by the current European Working Group on Sarcopenia 2 (EWGSOP2) classification and cut-off points, have not yet ... -
Climatic controls of decomposition drive the global biogeography of forest-tree symbioses
(NATURE PUBLISHING GROUP, 2019)The identity of the dominant root-associated microbial symbionts in a forest determines the ability of trees to access limiting nutrients from atmospheric or soil pools(1,2), sequester carbon(3,4) and withstand the effects ... -
Synthesis and characterization of new spirobisindane-based poly(imide)s: Structure effects on solubility, thermal behavior, and gas transport properties
(WILEY, 2020)Two new poly(imide)s (PIs) are derived from a biphenylspirobisindane-diamine monomer and the commercial dianhydrides: 4,4 '-hexafluoroisopropyliden diphthalic anhydride (6FDA) and pyromellitic anhydride (PMDA). Using ... -
Non-canonical function of IRE1 alpha determines mitochondria-associated endoplasmic reticulum composition to control calcium transfer and bioenergetics
(NATURE PUBLISHING GROUP, 2019)Mitochondria-associated membranes (MAMs) are central microdomains that fine-tune bioenergetics by the local transfer of calcium from the endoplasmic reticulum to the mitochondrial matrix. Here, we report an unexpected ... -
Cryopreservation of stallion semen: Effect of adding antioxidants to the freezing medium on sperm physiology
(WILEY, 2020)Cryopreservation of stallion semen has not reached the level of efficiency and positive results described in other species. This is mainly due to the greater sensitivity of stallion sperm to the freezing process, showing ...