Artículos científicos: Envíos recientes
Mostrando ítems 2241-2260 de 5726
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Article
Tectono-sedimentary cenozoic evolution of the el habt and ouezzane tectonic units (External rif, morocco) (2020)
(MDPI AG, 2020-12-03)An interdisciplinary study based on lithostratigraphic, biostratigraphic, petrographic and mineralogical analyses has been performed in order to establish the Cenozoic tectono-sedimentary evolution of the El Habt and ... -
Article
Integrating local environmental data and information from non-driven citizen science to estimate jellyfish abundance in Costa del Sol (southern Spain) (2020)
(Academic Press, 2021-02-05)Tourism, fishing and aquaculture are key economic sectors of Costa del Sol (southern Iberian Peninsula). The management of these activities is sometimes disturbed by the onshore arrival and stranding of jellyfish swarms. ... -
Article
Using the turnover time index to identify potential strategic groundwater resources to manage droughts within continental spain (2020)
(MDPI AG, 2020-11-22)The management of droughts is a challenging issue, especially in water scarcity areas, where this problem will be exacerbated in the future. The aim of this paper is to identify potential groundwater (GW) bodies with reduced ... -
Article
Erythroid Differentiation and Heme Biosynthesis Are Dependent on a Shift in the Balance of Mitochondrial Fusion and Fission Dynamics (2020)
(Frontiers Media S.A., 2020-11-23)Erythropoiesis is the most robust cellular differentiation and proliferation system, with a production of ∼2 × 1011 cells per day. In this fine-tuned process, the hematopoietic stem cells (HSCs) generate erythroid progenitors, ... -
Article
Aromaticity Survival in Hydrofullerenes: The Case of C66H4 with Its π-Aromatic Circuits (2020)
(Wiley-VCH Verlag, 2020-10-22)The isolated-pentagon rule (IPR) is a determining structural feature that accounts for hollow fullerene stabilization and properties related to Cn (n≥60) cages. The recent characterization of an unprecedented non-IPR ... -
Article
Differences in circulating corticosterone levels associated with elevation of breeding sites in Rufous-collared Sparrows Zonotrichia capensis (2020)
(Springer Science and Business Media Deutschland GmbH, 2020-12-03)To facilitate breeding and any energetically costly activity, individuals of the same species can substantially vary their circulating corticosterone (CORT) levels to cope with local environmental conditions at different ... -
Article
Forgeries and archaeology: Richard latcham, the precolumbian writing, and the guayacÁn pirates (2020)
(Museo Chileno de Arte Precolombino, 2020)From the supposed discovery of pre-Hispanic writing by ar-chaeologist Ricardo E. Latcham, this article discusses the role of archaeological forgeries in the creation of knowledge and narratives about the past in 1929 Latcham ... -
Article
Management, the state and union-weakening practices in Chile: A case study approach of the dual and ambivalent role of the state in a process of democratisation (2020)
(SAGE Publications Ltd, 2020-12-03)The article analyses a range of union-weakening practices developed in three Chilean workplaces. The findings suggest the existence of an ambivalent employment relationship between employers and trade unions where an ongoing ... -
Article
The Chemical Compositions of Essential Oils Derived from Cryptocarya alba and Laurelia sempervirens Possess Antioxidant, Antibacterial and Antitumoral Activity Potential (2020)
(NLM (Medline), 2020-11-28)Cryptocarya alba (Peumo; CA) and Laurelia sempervirens (Laurel; LS) are herbs native to the Chilean highlands and have historically been used for medicinal purposes by the Huilliches people. In this work, the essential ... -
Article
Effects on cerebral blood flow of position changes, hyperoxia, CO2 partial pressure variations and the Valsalva manoeuvre: A study in healthy volunteers (2020)
(NLM (Medline), 2021-01-01)BACKGROUND: Maintaining adequate blood pressure to ensure proper cerebral blood flow (CBF) during surgery is challenging. Induced mild hypotension, sitting position or unavoidable intra-operative circumstances such as ... -
Article
Analysis of dynamic balance in preschool children through the balance beam test: A cross-sectional study providing reference values (2020)
(Elsevier B.V., 2021-01)Background: dynamic balance (DB) is a complex ability at an early age and balance deficits are related to numerous disorders. There are several balance measures but wide variation in their use has restricted the capacity ... -
Article
Changes in anthropometric parameters and physical fitness in older adults after participating in a 16-week physical activity program (2020)
(Universidad Nacional de Colombia, 2020)Introduction: Physical activity is important for achieving healthy aging. Objective: To analyze changes in anthropometric parameters and physical fitness among Chilean older adults after participating in a 16-week physical ... -
Article
Efficiency of public expenditure in higher education. Chile 1990-2015 (2020)
(Universidad del Zulia, 2020)Empirically determining the efficiency of public spending on higher education in Chile with respect to the formation of advanced human capital is a challenge. The long-term relationship between the variables public spending ... -
Article
The challengue of energy efficiency in Europe and the rebound effect's risk (2020)
(Departamento de Literatura España-Universidad de Sevilla, 2020)This paper explores how the European Union's -EU- Authorities face the risk of a rebound effect limiting the effectiveness of efforts made energy efficiency oriented. Choice of EU zone is due to her leadership in the ... -
Article
The metabolic urban network: Urbanisation as hierarchically ordered space of flows (2020)
(Elsevier Ltd, 2020-11-26)Urban ecosystems perform a distinctive metabolism appropriating fundamental materials and energy resources from other ecosystems. This appropriation enables a productive circularity which sustains the material production ... -
Article
Usability perception of visual programming language: A case study (2020)
(CEUR-WS, 2020-09-18)Block programming languages are considered as facilitators of programming learning. Programming languages like Scratch are used by adolescents and children from different countries. Usability is an important aspect to ... -
Article
From transformation to adaptation: analysing the Spanish military change (2004–2020) (2020)
(Routledge, 2020-11-30)In 2019, the Spanish Defence Staff launched an “adaptation” process to adjust the structure of the force and its catalogue of military capabilities up to the year 2035. It replaced the “transformation” that had guided the ... -
Article
The roles of polycyclic aromatic hydrocarbons in dark cloud chemistry: New constraints on sulphur-bearing species (2020)
(Oxford University Press, 2020-09-01)The recent detection of c-C6H5CN in the dark cloud TMC-1 provides a new evidence of polycyclic aromatic hydrocarbons (PAHs) in dark clouds. However, knowledge of PAHs in dark cloud chemistry is still very limited. In this ... -
Article
Rotational relaxation of HCO+and DCO+by collision with H2 (2020)
(Oxford University Press, 2020-10-01)The HCO+ and DCO+ molecules are commonly used as tracers in the interstellar medium. Therefore, accurate rotational rate coefficients of these systems with He and H2 are crucial in non-local thermal equilibrium models. We ... -
Article
Non-Specific Antibodies Induce Lysosomal Activation in Atlantic Salmon Macrophages Infected by Piscirickettsia salmonis (2020)
(Frontiers Media S.A., 2020-11-12)Piscirickettsia salmonis, an aggressive intracellular pathogen, is the etiological agent of salmonid rickettsial septicemia (SRS). This is a chronic multisystemic disease that generates high mortalities and large losses ...