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https://www.readbyqxmd.com/read/29140980/prokaryotic-diversity-and-biogeochemical-characteristics-of-benthic-microbial-ecosystems-at-la-brava-a-hypersaline-lake-at-salar-de-atacama-chile
#1
Maria Eugenia Farias, Maria Cecilia Rasuk, Kimberley L Gallagher, Manuel Contreras, Daniel Kurth, Ana Beatriz Fernandez, Daniel Poiré, Fernando Novoa, Pieter T Visscher
Benthic microbial ecosystems of Laguna La Brava, Salar de Atacama, a high altitude hypersaline lake, were characterized in terms of bacterial and archaeal diversity, biogeochemistry, (including O2 and sulfide depth profiles and mineralogy), and physicochemical characteristics. La Brava is one of several lakes in the Salar de Atacama where microbial communities are growing in extreme conditions, including high salinity, high solar insolation, and high levels of metals such as lithium, arsenic, magnesium, and calcium...
2017: PloS One
https://www.readbyqxmd.com/read/29136016/monitoring-the-effects-of-land-cover-change-on-the-supply-of-ecosystem-services-in-an-urban-region-a-study-of-santiago-valpara%C3%A3-so-chile
#2
Claudia Montoya-Tangarife, Francisco de la Barrera, Alejandro Salazar, Luis Inostroza
Mankind's quest for well-being results in continuous pressure to transform landscapes, with said transformation driven by land use changes, urbanization, production activity, and protective measures in addition to climate variability and other environmental drivers. The relationship between anthropogenic landscape changes and the provision of ecosystem services (ES) is a topic of increasing interest in Latin America. In Chile, land cover changes due to increased urbanization and forestry, and expansion of agricultural land, in addition to conservation initiatives as a part of land planning, have been intensive in the last few decades...
2017: PloS One
https://www.readbyqxmd.com/read/29135974/early-meteorological-records-from-latin-america-and-the-caribbean-during-the-18th-and-19th-centuries
#3
Fernando Domínguez-Castro, José Manuel Vaquero, María Cruz Gallego, Ana María Marín Farrona, Juan Carlos Antuña-Marrero, Erika Elizabeth Cevallos, Ricardo García Herrera, Cristina de la Guía, Raúl David Mejía, José Manuel Naranjo, María Del Rosario Prieto, Luis Enrique Ramos Guadalupe, Lizardo Seiner, Ricardo Machado Trigo, Marcos Villacís
This paper provides early instrumental data recovered for 20 countries of Latin-America and the Caribbean (Argentina, Bahamas, Belize, Brazil, British Guiana, Chile, Colombia, Costa Rica, Cuba, Ecuador, France (Martinique and Guadalupe), Guatemala, Jamaica, Mexico, Nicaragua, Panama, Peru, Puerto Rico, El Salvador and Suriname) during the 18th and 19th centuries. The main meteorological variables retrieved were air temperature, atmospheric pressure, and precipitation, but other variables, such as humidity, wind direction, and state of the sky were retrieved when possible...
November 14, 2017: Scientific Data
https://www.readbyqxmd.com/read/29135820/avoiding-small-intestinal-biopsies-for-diagnosis-of-celiac-disease-in-children-a-reliable-strategy-for-all-patients
#4
Magdalena Araya, Julia Díaz, Amaya Oyarzun, Yalda Lucero, Teresa Alarcon, Mónica González, Paulina Canales, Liliana Fierro, Francisco Pérez-Bravo
BACKGROUND: Current reports applying ESPGHAN exception criteria (EEC) to diagnose celiac disease (CD) without duodenal biopsies indicate that a high percentage of patients with CD may be identified when applied correctly in specialized settings. However, application of the EEC in "daily life conditions" at the different levels of medical services is not clear. METHODS: EEC was applied to 130 pediatric patients evaluated for CD at five public hospitals in Santiago, Chile, during 2010-2015...
November 10, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/29134164/visual-outcomes-after-endoscopic-pituitary-surgery-in-patients-presenting-with-preoperative-visual-deficits
#5
Felipe Fredes, Gabriel Undurraga, Pablo Rojas, Felipe Constanzo, Carolina Lazcano, Jaime Pinto, Thomas Schmidt
Introduction  Pituitary adenomas represent 15% of primary brain tumors. Visual disturbance is a common clinical manifestation of these neoplasms due, among other factors, to local mass effect on the optic system. Objective  To evaluate changes of the visual fields in patients undergoing endoscopic endonasal approach (EEA) for pituitary adenomas and to find predictive factors for successful visual field outcome. Material and Methods  This is a cross-sectional study. A review was conducted of medical records of consecutive patients with tumors of the sellar region undergoing EEA between January 2008 and December 2012 at the Skull Base Unit of Guillermo Grant Benavente Hospital, University of Concepción, Concepción, Chile, and who had undergone pre- and postoperative visual field evaluation...
December 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29134012/morphological-analysis-of-trichomycterus-areolatus-valenciennes-1846-from-southern-chilean-rivers-using-a-truss-based-system-siluriformes-trichomycteridae
#6
Nelson Colihueque, Olga Corrales, Miguel Yáñez
Trichomycterus areolatus Valenciennes, 1846 is a small endemic catfish inhabiting the Andean river basins of Chile. In this study, the morphological variability of three T. areolatus populations, collected in two river basins from southern Chile, was assessed with multivariate analyses, including principal component analysis (PCA) and discriminant function analysis (DFA). It is hypothesized that populations must segregate morphologically from each other based on the river basin that they were sampled from, since each basin presents relatively particular hydrological characteristics...
2017: ZooKeys
https://www.readbyqxmd.com/read/29129752/larval-development-of-the-symbiotic-pea-crab-pinnaxodes-chilensis-h-milne-edwards-1837-decapoda-brachyura-pinnotheridae-reared-in-laboratory
#7
M E Gonzalez-Canales, E Marco-Herrero, M Andreu-Cazenave, J I González-Gordillo
The complete larval development of Pinnaxodes chilensis (including four zoeal stages and a megalopa stage) is described and illustrated in detail for the first time. The descriptions are based on laboratory-reared larvae obtained from ovigerous females found inside specimens of the sea urchin Loxechinus albus collected in the coast of Valparaíso, Chile. In order to allow their correct differentiation of specimens from plankton samples, the larval stages of P. chilensis are compared with those from the other Pinnotheridae species whose larval development is known for the Chilean continental waters (Calyptraeotheres politus)...
November 9, 2017: Arthropod Structure & Development
https://www.readbyqxmd.com/read/29125387/significado-de-psic%C3%A3-logas-os-de-atenci%C3%A3-n-primaria-de-salud-sobre-la-intervenci%C3%A3-n-psicosocial-de-grupo-en-el-tratamiento-de-la-depresi%C3%A3-n-en-chile
#8
Gonzalo Andrade, Adriana Espinoza
En Chile, el tratamiento de la depresión en salud pública promueve la realización de Intervenciones Psicosociales en Grupo (IPG) para todos los casos diagnosticados, no obstante, se observa una baja implementación de estas prestaciones. El presente artículo describe y caracteriza, desde el punto de vista de la disciplina psicológica, el significado de psicólogas/os que trabajan en consultorios de atención primaria de salud (APS) sobre las IPG en el tratamiento de la depresión. Se entrevistaron a ocho psicólogas/os de los distintos Servicios de Salud de la Región Metropolitana de Santiago...
November 1, 2017: Global Health Promotion
https://www.readbyqxmd.com/read/29122231/suicide-in-the-indigenous-population-of-latin-america-a-systematic-review
#9
Andres J Azuero, Dan Arreaza-Kaufman, Jeanette Coriat, Stefano Tassinari, Annette Faria, Camilo Castañeda-Cardona, Diego Rosselli
OBJECTIVE: Due to the high rates of suicide reported among many ethnic minorities, a systematic review is presented on suicide in indigenous populations of Latin America. METHODS: Systematic review in PubMed, Scopus, PsycNET, Scielo and Scholar Google. RESULTS: From an initial total of 1862 articles, 41 were included for data extraction. They include 21 from Brazil, 13 from Colombia, 2 from Chile, 1 from Peru, and 4 articles grouped from different countries...
October 2017: Revista Colombiana de Psiquiatría
https://www.readbyqxmd.com/read/29122226/-relationship-between-personality-organization-and-the-prevalence-of-symptoms-of-depression-anxiety-and-stress-among-university-students-in-health-careers-in-the-region-of-coquimbo-chile
#10
René Barraza López, Nadia Muñoz Navarro, Ana Contreras Astorga
OBJECTIVE: The literature reports a set of variables associated with depression, anxiety and stress in health career students. The only one of these that could have a constant input is the structure of personality organisation. The present study aims to determine the relationship between the dimensions of personality organization and depression, anxiety, and stress symptoms reported by first-year university health career students. METHODS: Under a non-experimental ex-post-facto design, the personality organisation was evaluated in 235 1st year university, medical, nursing, and kinesiology from three universities of La Serena and Coquimbo (Chile)...
October 2017: Revista Colombiana de Psiquiatría
https://www.readbyqxmd.com/read/29118959/congenital-myasthenic-syndrome-due-to-dok7-mutations-in-a-family-from-chile
#11
Jorge A Bevilacqua, Marian Lara, Jorge Díaz, Mario Campero, Jessica Vázquez, Ricardo A Maselli
Congenital myasthenic syndromes (CMS) are neuromuscular transmission disorders caused by mutations in genes encoding neuromuscular junction proteins. A 61-year-old female and her older sister showed bilateral ptosis, facial and proximal limb weakness, and scoliosis since childhood. Another female sibling had milder signs, while other family members were asymptomatic. Facial nerve repetitive stimulation in the proband showed decrement of muscle responses. Single fiber EMG revealed increased jitter and blocking...
June 27, 2017: European Journal of Translational Myology
https://www.readbyqxmd.com/read/29114934/illegal-fishing-and-territorial-user-rights-in-chile
#12
Rodrigo Oyanedel, Andres Keim, Juan Carlos Castilla, Stefan Gelcich
Illegal fishing poses a major threat for the conservation of marine resources worldwide. However, there is still limited empirical research that quantifies illegal catch levels. This study uses the Randomized Response Technique to estimate the proportion of divers, and the quantities extracted of illegal "loco" (Concholepas concholepas), a gastropod managed for the past 17 years through a Territorial User Rights for Fisheries system (TURFs) in Chile. Results show that illegal fishing is widespread along the TURFs system, with official reported landings accounting for only 14- 30% of the total loco extraction...
November 7, 2017: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/29112134/%C3%A2-h-nmr-and-multivariate-analysis-for-geographic-characterization-of-commercial-extra-virgin-olive-oil-a-possible-correlation-with-climate-data
#13
Domenico Rongai, Nadia Sabatini, Laura Del Coco, Enzo Perri, Paolo Del Re, Nicola Simone, Donato Marchegiani, Francesco Paolo Fanizzi
¹H Nuclear Magnetic Resonance (NMR) spectroscopy coupled with multivariate analysis has been applied in order to investigate metabolomic profiles of more than 200 extravirgin olive oils (EVOOs) collected in a period of over four years (2009-2012) from different geographic areas. In particular, commercially blended EVOO samples originating from different Italian regions (Tuscany, Sicily and Apulia), as well as European (Spain and Portugal) and non-European (Tunisia, Turkey, Chile and Australia) countries. Multivariate statistical analysis (Principal Component Analisys (PCA) and Orthogonal Partial Least Squares Discriminant Analysis (OPLS-DA)) applied on the NMR data revealed the existence of marked differences between Italian (in particular from Tuscany, Sicily and Apulia regions) and foreign (in particular Tunisian) EVOO samples...
November 7, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/29110958/low-level-arsenic-exposure-during-pregnancy-and-its-association-with-postpartum-depression-a-cohort-study-of-women-from-arica-chile
#14
M Valdés, A Hanchey, M P Muñoz, B Baumert, V Iglesias
BACKGROUND: While the relationship between inorganic arsenic exposure and psychological impairment has been studied previously, the association between low-level arsenic exposure during pregnancy and postpartum depression has not yet been examined. The objective is to estimate the association between low-level arsenic exposure during pregnancy and the Edinburgh score. METHODS: A sample of 223 women was collected from five public health services in Arica, Chile. Participation was voluntary and written consent was mandatory...
November 2017: Revue D'épidémiologie et de Santé Publique
https://www.readbyqxmd.com/read/29110894/cadmium-determination-in-chilean-blue-mussels-mytilus-chilensis-implications-for-environmental-and-agronomic-interest
#15
J Max Blanc, Carlos Molinet, Ricardo Subiabre, Patricio A Díaz
Cadmium is present in agricultural soil composition and is assimilated by plants. The mussel industry generates large volumes of calcareous valves as a byproduct of processing in factories. This solid waste is ground, stored and disposed of in the form of agricultural supplies near production areas in almost all regions of the world. Cd content was recorded in these calcareous substrate by-products of industrial processes. In this study, mussel shells were investigated in three areas in the sea of Chile; two areas with high aquaculture activity and one in a non-production area...
October 27, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/29109387/diet-quality-and-satisfaction-with-life-family-life-and-food-related-life-across-families-a-cross-sectional-pilot-study-with-mother-father-adolescent-triads
#16
Berta Schnettler, Germán Lobos, Edgardo Miranda-Zapata, Marianela Denegri, Gastón Ares, Clementina Hueche
Family is a major determinant of children's and adolescents' eating behavior. The objectives of the present study were to assess diet quality, eating habits, satisfaction with life, family life, and food-related life in mother-father-adolescent triads, and to identify profiles of families according to family members' diet quality. Questionnaires were administered to a sample of 300 two-parent families with one child over the age of 10 in the city of Temuco (Chile), including the Adapted Healthy Eating Index (AHEI), Satisfaction with Life Scale (SWLS), Satisfaction with Food-related Life (SWFoL) scale, Satisfaction with Family Life (SWFaL) scales, and questions relating to their eating habits...
October 29, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29104578/traits-explaining-durum-wheat-triticum-turgidum-l-spp-durum-yield-in-dry-chilean-mediterranean-environments
#17
Gerlitt González-Ribot, Marcela Opazo, Paola Silva, Edmundo Acevedo
Yield under water stress (YS) is used as the main criterion in the selection of wheat varieties for dry Mediterranean environments. It has been proposed that selection of genotypes using YS assisted by morphological and physiological traits associated with YS is more efficient in selecting high yielding genotypes for dry environments. A study was carried out at the Antumapu Experiment Station of the University of Chile, located in Santiago, Chile (33° 40'S and 70° 38' W). The objective was to evaluate the extent to which morpho physiological traits could explain YS...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29101684/high-altitude-hyper-arid-soils-of-the-central-andes-harbor-mega-diverse-communities-of-actinobacteria
#18
Alan T Bull, Hamidah Idris, Roy Sanderson, Juan Asenjo, Barbara Andrews, Michael Goodfellow
The data reported in this paper are among the first relating to the microbiology of hyper-arid, very high altitude deserts and they provide base line information on the structure of actinobacterial communities. The high mountain Cerro Chajnantor landscape of the Central Andes in northern Chile is exposed to the world's most intense levels of solar radiation and its impoverished soils are severely desiccated. The purpose of this research was to define the actinobacterial community structures in soils at altitudes ranging from 3000 to 5000 m above sea level...
November 3, 2017: Extremophiles: Life Under Extreme Conditions
https://www.readbyqxmd.com/read/29100694/worldwide-drinking-water-occurrence-and-levels-of-newly-identified-perfluoroalkyl-and-polyfluoroalkyl-substances
#19
Hermann A Kaboré, Sung Vo Duy, Gabriel Munoz, Ladji Méité, Mélanie Desrosiers, Jinxia Liu, Traoré Karim Sory, Sébastien Sauvé
In the last decade or so, concerns have arisen with respect to the widespread occurrence of perfluoroalkyl acids (PFAAs) in the environment, food, drinking water, and humans. In this study, the occurrence and levels of a large range of perfluoroalkyl and polyfluoroalkyl substances (PFASs) were investigated in drinking water (bottled and tap water samples) from various locations around the world. Automated off-line solid phase extraction followed by ultra-high-performance liquid chromatography coupled to high-resolution mass spectrometry was used to analyze PFASs of various chain lengths and functional groups...
October 31, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29099817/effectiveness-of-sugar-sweetened-beverages-taxes-to-reduce-obesity-evidence-based-policy-brief
#20
Josefina Bascuñán, Cristóbal Cuadrado
The high prevalence of obesity in Chile, along with the increasing consumption of sugary drinks in the country, has made apparent the need to propose fiscal measures, through taxes on specific foods, as a complementary alternative to approach this problem. Since 2014, an additional 5% increase in the tax on sugar-sweetened nonalcoholic beverages has been in effect in Chile, an amount that may be insufficient to produce an impact on obesity levels. The evidence of the effectiveness of fiscal measures upon sugary beverages, in terms of price modification, generally reflects a high transfer of the tax to the final consumers, which is variable according to local conditions...
October 25, 2017: Medwave
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