Repositorio UMAYOR: Envíos recientes
Mostrando ítems 3521-3540 de 7937
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Detection of the phycotoxin pectenotoxin-2 in waters around King George Island, Antarctica
(SPRINGER, 2020)In order to set a base line for the observation of planktonic community changes due to global change, protistan plankton sampling in combination with phycotoxin measurements and solid phase adsorption toxin tracking (SPATT) ... -
Water availability, quality, and use in rural communities of the Chilean Coastal Range
(SOIL WATER CONSERVATION SOC, 2020)Water availability, use, and quality in dispersed rural communities in a rural watershed within the Chilean Coastal Range were investigated through participatory research involving the local community, also called"citizen ... -
Resurgence of minority and autochthonous grapevine varieties in South America: a review of their oenological potential
(WILEY, 2020)In contrast with the general trend of producing wine from the most famous grapevine varieties, associated with the French paradigm, such as Cabernet-Sauvignon, Merlot, Pinot Noir, Syrah, Sauvignon Blanc, and Chardonnay, ... -
Diaphragm-sparing nerve blocks for shoulder surgery, revisited
(BMJ PUBLISHING GROUP, 2020)Although interscalene brachial plexus block (ISB) remains the gold standard for analgesia after shoulder surgery, the inherent risks of ipsilateral phrenic nerve block and hemidiaphragmatic paralysis (HDP) limit its use ... -
Investigating how perceived risk and availability of marijuana relate to marijuana use among adolescents in Argentina, Chile, and Uruguay over time
(ELSEVIER IRELAND LTD, 2019)Aims: Amid changing marijuana policies in the Southern Cone, we examined relationships between marijuana related risk factors and marijuana use among adolescents in Argentina, Chile, and Uruguay from 2001 to 2016. Methods: ... -
Influence of the concentration of copper nanoparticles on the thermo-mechanical and antibacterial properties of nanocomposites based on poly(butylene adipate-co-terephthalate)
(WILEY, 2019)Poly(butylene adipate-co-terephthalate) (PBAT) was mixed with copper nanoparticles (Cu-NPs) in concentrations of 1%, 3%, and 5% with particle size between 100 nm and 200 nm by the melting method. A morphological, thermal, ... -
Initial response of understorey vegetation and tree regeneration to a mixed-severity fire in old-growth Araucaria-Nothofagus forests
(WILEY, 2019)Questions Fire is a key factor influencing Araucaria araucana forests, but the impact of fire severity on the understorey vegetation is not well understood. In this study we seek to answer the following questions: (a) how ... -
Synthesis and characterization of processable fluorinated aromatic poly (benzamide imide)s derived from cycloalkane substituted diamines, and their application in a computationally driven synthesis methodology
(ELSEVIER SCI LTD, 2019)A new set of four fluorinated aromatic poly(benzamide imide)s was synthesized with the objective of preparing condensation polymers with good processability while maintaining high chemical resistance, thermal stability and ... -
Caracterización de los patrones de actividad física en distintos grupos etarios chilenos
(ARAN EDICIONES, S L, 2019)Background: international physical activity (PA) guidelines recommend 150 minutes of moderate to vigorous PA or 75 minutes of vigorous PA weekly; however, the proportion of the Chilean population who meet this recommendation ... -
Implications of climate change for semi-arid dualistic agriculture: a case study in Central Chile
(SPRINGER HEIDELBERG, 2019)The nexus between climate change, agriculture, and poverty has become a major topic of concern, especially for dry regions, which represent a large share of the world's population and ecosystems vulnerable to climate change. ... -
Comparison of different land degradation indicators: Do the world regions really matter?
(WILEY, 2019)In 2010, the Convention on Biological Diversity created the Aichi Biodiversity targets to aid the restoration of degraded ecosystems, which include the restoration of at least 15% of degraded ecosystems by 2020. A crucial ... -
Sodium tungstate: Is it a safe option for a chronic disease setting, such as diabetes?
(WILEY, 2019)Diabetes is a complex metabolic disorder triggered by the deficient secretion of insulin by pancreatic cells, the resistance of peripheral tissues to the action of the hormone, or both, and is characterized by chronic ... -
Climate signals from intra-annual wood density fluctuations in Abies durangensis
(BRILL ACADEMIC PUBLISHERS, 2019)Ongoing climate change is expected to alter forests by affecting forest productivity, with implications for the ecological functions of these systems. Despite its great dendrochronological potential, little research has ... -
Nursing Consultation in a Public Bathhouse: A Community Resource for the Vulnerable Population in a European Capital
(TAYLOR & FRANCIS INC, 2019)Background: In Portugal's capital, Lisbon, there are 19 public showers (PS) attended by a vulnerable population. Aim: To describe the assessment and interventions performed during nursing consultations. Method: This is a ... -
Relación entre sobrepeso, obesidad y niveles de autoestima en escolares
(FEDERACION ESPANOLA ASOC DOCENTES EDUCACION FISICA-FEADEF, 2019)The increase of childhood obesity has become a major public health problem in Chile; however, there is little evidence of its impact on psychological factors in preadolescent and adolescent populations. The purpose of this ... -
Stress and salivary telomere length in the second half of life: A comparison of life-course models
(ELSEVIER SCI LTD, 2019)Background: Previous research has explored the relationship between childhood and adulthood stressful life events (SLEs) and adult salivary telomere length (TL), but no research to date has tested different life-course ... -
The three pillars of neoliberalism: Chile's economic policy trajectory in comparative perspective
(ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD, 2020)Since the Great Recession, the durability of neoliberalism has been at the forefront of scholarly debates, and explanations of this durability have proliferated. Yet, no systematic attempt has been made to test these ... -
Thomas Hobbes's a priori notion of contract
(VITA PENSIERO, 2019)Thomas Hobbes's theory of social contract has received much attention and commentary from scholars. Less attention has been given to his theory of contract as a theory of private law contracts. But it has not been noted ... -
What is the Effectiveness of HIIT Body Work on Energy Expenditure in Active Male Adults
(LIPPINCOTT WILLIAMS & WILKINS, 2019)Sin resumen -
Edge effects modify the growth dynamics and climate sensitivity of Araucaria Angustifloia trees
(TREE-RING SOC, 2020)Edge effects are a major cause of natural dynamics of fragmented forests; however, studies that evaluate edge effects during the lifetime of trees are relatively rare. Through a long-term perspective of tree growth, ...