Browsing by Title
Now showing items 39493-39512 of 91763
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(SERVICIO NACIONAL GEOLOGIA MINERIA, 2011-01)Newly described outcrops, excavations and sediment cores from the region of Ultima Esperanza, Magallanes, contain tephra derived from the large late-glacial explosive RI eruption of the Reclus volcano in the Andean Austral ...
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(2011)Newly described outcrops, excavations and sediment cores from the region of Última Esperanza, Magallanes, contain tephra derived from the large late-glacial explosive R1 eruption of the Reclús volcano in the Andean Austral ...
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(AMER SOC LIMNOLOGY OCEANOGRAPHY, 2008-11)The evolution of internal waves in a two-layer rotating circular lake was studied under nonlinear and weak nonhydrostatic effects. Inclusion of nonlinear acceleration allowed the waves to steepen at the rear of the crest ...
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(Elsevier, 2015)The Irruputuncu is an active volcano located in northern Chile within the Central Andean Volcanic Zone (CAVZ) and that has produced andesitic to trachy-andesitic magmas over the last ~258 ± 49 ka.We report petrographical ...
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(KLUWER ACADEMIC PUBL, 1993-01)Santiago is a city of over 4.5 million inhabitants and about 415000 motor vehicles using leaded gasoline. Twenty-four-hour samples were taken of total and fractionated particulate matter using a low-volume system and two ...
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(EDP SCIENCES S A, 2006-11)We investigate the evolution and the statistical properties of the Ly alpha absorbers of the intergalactic medium (IGM) in the largely unexplored redshift range z = 0.5-1.9. We use high-resolution (R = 30 000) UV (STIS) ...
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(2009)Background: Considering the high prevalence of obesity among children attending elementary schools, it is important to know the evolution of body weight when these children reach adolescent. Aim: To analyze the changes in ...
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(UNIV CHICAGO PRESS, 2006-12-01)In order to study the evolution of the relative fraction of obscured active galactic nuclei (AGNs), we constructed the largest sample to date of AGNs selected in hard X-rays. The full sample contains 2341 X-ray-selected ...
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(2014)The optimized methodology and results of the new characterization in terms of dose and image quality of the x-ray system used in the main service of pediatric hemodynamics of Chile is presented. In addition, scatter dose ...
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(Oxford, 2022)Long-lived magnetic fields are known to exist in upper main-sequence stars, white dwarfs, and neutron stars. In order to explore possible equilibrium configurations of the magnetic field inside these stars, we have performed ...
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(Frontiers Media, 2021)A number of glaciological observations on debris-covered glaciers around the globe have shown a delayed length and mass adjustment in relation to climate variability, a behavior normally attributed to the ice insulation ...
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(IOP PUBLISHING LTD, 2009-07-01)We use three years of data from the Swift/Burst Alert Telescope ( BAT) survey to select a complete sample of X-ray blazars above 15 keV. This sample comprises 26 flat-spectrum radio quasars (FSRQs) and 12 BL Lacertae (BL ...
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(IOP Publishing, 2015)In this study, we report on the structural and hyperfine properties of Al-doped SnO2 nanoparticles synthesized by a polymer precursor method. The x-ray diffraction data analysis carried out using the Rietveld refinement ...
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(2012)Introduction: Bariatric surgery allows a significant reduction in weight and improvement of comorbidities associated with obesity in the long term, but it can also adversely affect the nutritional status of some micronutrients. ...
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(Sociedad Medica de Santiago, 2014)Background: Metabolic syndrome is a risk factor for cardiovascular diseases and cancer. Its frequency is increasing steadily Aim: To evaluate the prevalence of metabolic syndrome (MS) and its components in a 10-year tracking ...
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(2005)Background: As a consequence of the epidemiological transition in Chile, the nutritional status of the population has changed notoriously. Aim: To study the changes in the nutritional status of six years-old Chilean children ...
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(Elsevier Ltd, 2019)© 2018 Elsevier LtdAn olive leaf extract (OLE) was microencapsulated with sodium alginate (SA) by spray-drying to study the evolution of oleuropein (ORP) during in vitro gastrointestinal digestion, and its bioaccessibility ...
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(Springer, 2013)The 20 ka *0.1 km3 Omega dacite, which erupted shortly after the 26.5 ka Oruanui super-eruption, compositionally stands out among Taupo Volcanic Zone (TVZ) magmas, which are overwhelmingly characterized by rhyolites ...
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(WILEY-BLACKWELL, 2010-12)The parietal, or third, eye is a photosensory organ situated in the middle of the skull of many lizards. Despite many hypotheses, its exact ecological functions are still unclear. Studies have compared the presence and ...
