A5009612206- Gamma-ray bursts and supernovae
- Astrophysics and Cosmic Phenomena
- Pulsars and Gravitational Waves Research
- Astronomy and Astrophysical Research
- Astrophysical Phenomena and Observations
- Cryospheric studies and observations
- Climate change and permafrost
- Astronomical Observations and Instrumentation
- Stellar, planetary, and galactic studies
- Arctic and Antarctic ice dynamics
- Aquaculture disease management and microbiota
- Hydrology and Watershed Management Studies
- Galaxies: Formation, Evolution, Phenomena
- Climate variability and models
- Meteorological Phenomena and Simulations
- Geology and Paleoclimatology Research
- Landslides and related hazards
- Aquaculture Nutrition and Growth
- Geophysics and Gravity Measurements
- Plant Water Relations and Carbon Dynamics
- Invertebrate Immune Response Mechanisms
- Water Quality Monitoring Technologies
- Plant Taxonomy and Phylogenetics
- Machine Learning and Data Classification
- Myxozoan Parasites in Aquatic Species
University of Talca
2025
National Domestic Workers Alliance
2023
University of Chile
2009-2021
Kavli Institute for the Physics and Mathematics of the Universe
2020
The University of Tokyo
2020
Hospital San Borja Arriarán
2011
Institut de Recherche pour le Développement
2007-2011
Centre National de la Recherche Scientifique
2008-2011
Centro de Estudios Científicos
2008-2011
Université de Montpellier
2008-2010
Abstract Patagonia, located in southern South America, is a vast and remote region holding rich variety of past environmental records but small number meteorological stations. Precipitation over this mostly produced by disturbances embedded the westerly flow strongly modified austral Andes. Uplift on windward side leads to hyperhumid conditions along Pacific coast western slope Andes; contrast, downslope subsidence dries eastern plains leading arid, highly evaporative conditions. The authors...
Abstract Atmospheric warming and enhanced melting of glaciers is already resulting in changes the glacial contribution to run‐off mountain basins around world. The leads at first increased discharge peaks an melt season, while longer time frame glacier wasting can be so severe that it results decreased run‐off. Glacier with a decreasing trend have been observed south‐central British Columbia, low elevations Swiss Alps central Andes Chile, which probably combined effect reduced from seasonal...
The significance of polycystic ovarian morphology (PCOM) during adolescence is not clear. aim this study was to determine the relationship between PCOM and anti-Müllerian hormone (AMH), inhibin B, testosterone insulin levels in healthy girls second decade life. We also determined whether AMH could be used as a surrogate marker adolescence. Seventy-four non-obese adolescents (age range: 13.5−19.75 years old) with regular menstrual cycles participated study. Transabdominal ultrasound blood...
Due to the negative consequences associated with use of antibiotics, researchers, and food producers have studied alternatives, such as probiotics, for control fish diseases. The probiotic properties yeasts in aquaculture been scarcely considered. present study investigated local yeast strains application protection bacterial Yeast (n = 15), previously isolated from intestinal gut healthy salmonids, yellowtail, croaker, were evaluated their zebrafish larvae following a Vibrio anguillarum...
We describe the execution and data reduction of European Southern Observatory Large Programme "Quasars their absorption lines: a legacy survey high-redshift universe with VLT/XSHOOTER" (hereafter `XQ-100'). XQ-100 has produced made publicly available an homogeneous high-quality sample echelle spectra 100 QSOs at redshifts z~3.5-4.5 observed full spectral coverage from 315 to 2500 nm resolving power ranging R~4000 7000, depending on wavelength. The median signal-to-noise ratios are 33, 25 43,...
This is the first study using molecular and culture-based methods aimed at investigating composition of intestinal yeast microbiota wild reared carnivorous salmonids, croaker yellowtail, to characterize their cores evaluate enzymatic activities cultivated yeast. Among 103 samples from were detected in 85.4%, with 43 species identified. The core fish was composed eight species, contrast core, which consisted two species: Debaryomyces hansenii Rhodotorula mucilaginosa. Despite smaller...
Obesity is characterized by mild chronic inflammation that linked with impaired iron homeostasis. Studies in human and murine show there a transgenerational epigenetic inheritance via the gametes obesity, however, little information on changes expression of microRNAs related to homeostasis spermatozoa from obese subjects. The present study investigated (miR-21 y miR-155) nutrition (miR-122 miR-200b) plasma, peripheral blood mononuclear cells (PBMC) normozoospermic controls (Cn; n=17; BMI:...
Glaciers worldwide are in retreat, and their meltwater can modulate mountain aquifers. We examined whether mass loss of the Juncal Norte Glacier (central Chile) has affected groundwater storage River basin between 1990 2022. Recession-curve modeling daily streamflow shows no statistically significant trend basin-scale reserves (τ = 0.06, p > 0.05). In contrast, glacier volume declined significantly (−3.8 hm3/yr, < 0.05), precipitation at nearby Riecillos station fell sharply during...
We present optical and near-IR data of three Type II supernovae (SNe II), SN 2008bm, 2009aj, 2009au. These SNe display the following common characteristics: signs early interaction ejecta with circumstellar material (CSM), blue $B\!-\!V$ colours, weakness metal lines, low expansion velocities, $V$-band absolute magnitudes 2-3 mag brighter than those expected for normal based on their velocities. Two more reported in literature (SN 1983K LSQ13fn) share properties similar to our sample....
Abstract Shiga toxin‐producing Escherichia coli (STEC) is a zoonotic pathogen that causes severe illness in humans, often associated with foodborne outbreaks. Antimicrobial resistance among E. has increased over the last decades becoming public health issue. In this study, presence and features of STEC were investigated samples meat, seafood, vegetables ready‐to‐eat street‐vended food collected Chile, using genomic microbiological approach. Phenotypic genotypic antimicrobial profiles...
Motivated by the advantages of observing at near-IR wavelengths, we investigate Type II supernovae (SNe II) as distance indicators those wavelengths through Photospheric Magnitude Method (PMM). For analysis, use BVIJH photometry and optical spectroscopy 24 SNe during photospheric phase. To correct for extinction redshift effects, compute total-to-selective broad-band ratios K-corrections up to |$z$| = 0.032. estimate host galaxy colour excesses, colour–colour curve method with V–I versus B–V...
The CHASE project started in 2007 with the aim of providing young southern supernovae (SNe) to Carnegie Supernova Project (CSP) and Millennium Center for Studies (MCSS) follow-up programs. So far has discovered 33 SNe an average more than 2.5 per month 2008. In addition search we are carrying out a program targeting bright SNe. Our fully automated data reduction allows us follow evolution on light curve real time, triggering further observations if something potentially interesting is detected
Summary Relatively large rates of response to traits economic importance have been observed in different selection experiments salmon. Several QTL mapped the salmon genome, explaining unprecedented levels phenotypic variation. Owing relatively intensity, individual loci may be indirectly selected, leaving molecular footprints selection, together with increased inbreeding, as its likely relatives will share selected loci. We used population differentiation and linkage disequilibrium...
Abstract The White Cordillera (northern Peru), with a glacial surface of 631 km2, is the largest glacierized mountain range in Tropics. Due to lack physical data from most its sub-basins, it difficult build model estimate water resource flowing glaciers at present time and fortiori for future. recent GCM simulations indicate significant increase temperature an accelerated shrinking glaciers. Consequently, we sought that would be based on available within instrumented sub-basins. A...
Chilean aquaculture mainly produces salmonids and molluscs. Salmonid production has been questioned by its excessive use of antimicrobials. This study aimed to investigate the bacterial microbiota composition Mytilus spp. cultivated near salmonid farms determine minimum inhibitory concentration (MIC) florfenicol oxytetracycline culturable bacteria. Seven farming sites classified according their proximity salmon as close (CSF) or distant (DSF) were sampled in two years. We analyzed through...
Abstract. Ice elevation changes of the Northern Patagonia Icefield (NPI) were analyzed by comparing three Digital Elevation Models (DEM) corresponding to 1975 (constructed based on topographic maps), SRTM DEM 2000 yr and a SPOT 5 2005. In addition, glacier length fluctuations surface area evolution between 2001 2011 25 glaciers NPI studied: information extracted from Landsat ETM+ satellite image 11 March was compared measurements performed 19 February 2011. From global point view, majority...
Abstract Climate-sensitive hazards, including extreme heat, wildfire smoke, flooding, and rising sea levels, can jeopardize the health of all populations. However, certain population groups are more vulnerable to harm from these hazards. While youth–particularly those historically marginalized communities–are among at highest risk, their abilities may be underutilized in local climate adaptation efforts. This exploratory research aimed identify opportunities for youth involvement...