Estudio de mercado "Grado de aceptacion de las viviendas de madera industrializada en la ciudad de Talca" : (Estudio realizado al grupo socioeconomico ABC1).

110 p.El objetivo general que se plantea en el siguiente estudio es determinar si los habitantes de la ciudad de Talca, estarían dispuestos a adquirir casas de madera industrializada, como alternativa de vivienda. Con el fin de satisfacer el objetivo de este estudio de mercado se llevo a cabo una serie de pasos que comenzó con la definición de los objetivo específicos de la investigación, el planteamiento del marco te6rico con el fin de desarrollar los aspectos mas importantes que facilitaran la comprensión del tema. Se realizo un grupo foco con el fin generar información útil parar la estructuración del cuestionario. Por ultimo se aplic6 el cuestionario a una muestra total de 115 personas perteneciente al estrato socioeconómico ABC1. Finalmente entre las principales conclusiones que arrojo el estudio se puede mencionar que los habitantes de la ciudad de Talca están dispuestos a adquirir casas de madera industrializada con la finalidad de que esta sea una vivienda del tipo alternativa o segunda vivienda. Los lugares geográficos mas preferidos para la construcción de estos inmuebles fueron en primer lugar alrededor de la ciudad y el campo, segunda de cerca por la playa. De las características que presentan las casas industrializadas, los potenciales clientes otorgan un mayor valor a la resistencia al fuego del inmueble, la resistencia a la humedad y a la durabilidad de la vivienda, al momento de tomar la decisión de comprar una de estas casas. También se concluye que la decisión de compra de una casa de madera industrializada no depende del conocimiento que presente la persona sobre este tipo de construcción, es decir que existen otros factores que inciden en dicho proceso

Geochronology of the Lower Cretaceous volcanism from the Coastal Range (29°20’-30°S), Chile.

24 pages, 10 figures, 4 tables.40Ar/39Ar age data (laser and furnace step heating) on plagioclase from Lower Cretaceous volcanic sequences from the Arqueros Formation in two sections of the Coastal Range at the latitude of La Serena (≈29°S) have been obtained. Due to the partial alteration of plagioclase crystals, disturbed age spectra in the furnace experiments have been observed, whereas laser heating determinations involving a much smaller quantity of grains carefully selected, could display plateau ages corresponding to pure plagioclase, as demonstrated by a constant 37ArCa/39ArK ratio. Plateau ages of 114.1±0.5 Ma (sample ARQ99-4), 111.3±0.9 Ma (sample TC99-5a), and 91.0±0.6 Ma (sample TC99-2) were found in lava fl ows, and 84.3±1.3 Ma on a dyke (sample ARQ99-7). These new 40Ar/39Ar ages, together with those previously published in central Chile, allow a constriction of the extensional magmatism during the Early Cretaceous in the Coastal Range of central and north-central Chile. All these data are in accordance with a long lived Early Cretaceous Magmatic Province (119-84 Ma), that could have started with a brief and huge magmatic event, mostly developed in the central part of the Coastal Range, followed by discrete magmatic pulses at further northern latitudes.Geocronología del volcanismo del Cretácico Inferior en la Cordillera de la Costa (29°20'-30°S), Chile. Se han obtenido edades 40Ar/39Ar (calentamiento por pasos en horno y mediante láser) en plagioclasas de secuencias volcánicas de dos secciones del Cretácico Inferior de la Cordillera de la Costa (Formación Arqueros) a la latitud de La Serena (≈29°S). Debido a la alteración parcial de los cristales de plagioclasa, se han observado espectros de edades perturbados en las medidas realizadas en horno. Sin embargo, en las determinaciones realizadas mediante láser en unos pocos granos de plagioclasa meticulosamente seleccionados se han obtenido edades plateau correspondientes a plagioclasa primaria, como lo evidencian los valores constantes de la relación 37ArCa/39ArK. Se han obtenido edades plateau de 114,1±0,5 Ma (muestra ARQ99-4), 111,3±0,9 Ma (muestra TC99-5a) y 91,0±0,6 Ma (muestra TC99-2) en diferentes coladas de lava, y de 84,3±1,3 Ma en un dique (muestra ARQ99-7). Estas nuevas edades 40Ar/39Ar, junto a las ya publicadas en Chile central, permiten constreñir mejor la duración del evento magmático extensional durante el Cretácico Inferior en la Cordillera de la Costa del centro y centro-norte de Chile. Estos datos están de acuerdo con la existencia de una Provincia Magmática del Cretácico Inferior (119-84 Ma), que habría comenzado con un breve e intenso evento magmático en la zona central de la Cordillera seguido de pulsos magmáticos discretos hacia latitudes más septentrionales.This study was supported by the Departamento de Investigación y Desarrollo (DID), Universidad de Chile, Project I001-99/2, FONDECYT Projects 1031000, 7040160 and 7050282, the Spanish project BTE-2003- 06265 (Ministry of Science and Technology/Ministry of Education and Science and FEDER), the RNM 131 of Junta de Andalucía and the ‘Plan Propio’ of GranadaPeer reviewe

Application of the mineralogy and mineral chemistry of carbonates as a genetic tool in the hydrothermal environment

The mineralogy and mineral chemistry of carbonates from various hydrothermal deposits, including volcanic-hosted Au-Cu epithermal, “Chilean Manto-type” Cu(-Ag), stratabound Mn, and Ag-Ba vein deposits from Spain and Chile, were investigated. Dolomite-ankerite (±siderite) was found in variable amounts within the epithermal deposits and associated hydrothermal alteration, whereas calcite was found either within barren veins or disseminated within the regional alteration. Calcite is the major gangue phase within the stratabound deposits, which tend to lack dolomite/ankerite and siderite. Carbonates precipitated from hydrothermal ore fluids are typically Mn-rich, up to 3.55 at. % in siderite, 2.27 at. % in dolomite/ankerite, and 1.92 at. % in calcite. In contrast, calcite related to very low-grade metamorphism or regional low-temperature alteration is Mn-poor but sometimes Mg-rich, possibly related to a higher temperature of formation. Chemical zonation was observed in the hydrothermal carbonates, although no unique pattern and chemical evolution was observed. This study suggests that the chemical composition of carbonates, especially the Mn content, could be a useful vector within ore-forming hydrothermal systems, and therefore constitutes a possible tool in geochemical exploration. Furthermore, Mn-poor calcites detected in some deposits are suggested to be linked with a later episode, maybe suggesting a predominance of meteoric waters, being not related to the main ore stage formation, thus avoiding misunderstanding of further isotopic studies.Spanish projects BTE-2003-06265 and CGL2006-02594-BTE (Ministry of Science and Technology/ Ministry of Science and Innovation/Ministry of Education and Science and FEDER)RNM 131 of Junta de AndalucíaChilean FONDECYT Project 103100

Characteristic of the fluids involved in very low-grade metamorphic processes in the Cordillera de la Costa, Chile Central

Documento publicado en: http://www.ehu.eus/sem/seminario_pdf/SEMINARIOS_SEM_3_110.pdfComunicación presentada en el Seminario de la Sociedad Española de Mineralogía, celebrado en Jaén en septiembre de 2007.Current researchs on very low-grade metabasites are mostly centred on the establishment of the metamorphic paragenesis and determination of mineral chemistry as a tool to quantify P-T conditions. Nevertheless, few works has been designed with the aim to characterise fluids involved in these very low-grade metamorphic processes. In this sense, a study of the fluids involved in the genesis of the very low- grade metamorphism found in Lower Cretaceous volcanic and volcaniclastic rocks from the Coastal Range of central Chile has been carried out. Volcanism was generated in extensional intra-arc basins, dominated by high subsidence rate during the subduction of the Pacific Plate under the South American Plate (e.g. Morata and Aguirre, 2003a). This study has been performed on samples coming from La Serena (≈30°00'S) and Melipilla (≈33º50'S). In both areas, volcanic and volcaniclastic rocks evidence metamorphic minerals ranging from the high-T zeolites to the prehnite-pumpellyite metamorphic facies (e.g. Morata et al., 2003), Metamorphic minerals appear as pseudomorphs of previous igneous phases or as replacement of the volcanic groundmass and/or infilling open spaces. The occasional higher size of metamorphic minerals in this last metadomaim favoured the application of fluid inclusion and isotopic techniques with the aim to investigate the chemical composition of metamorphic fluids. The microthermometric study of fluid inclusions in prehnite and calcite shows the presence of fluids with moderate temperatures of homogenisation (<200ºC) and lightly saline (up to 25% wt. % NaCl equivalent). The REE contents of the separate minerals are smaller than those of the host volcanic rocks, with negative and positive anomalies of Eu for prehnite and epidote respectively. The study of the stable (δ13C: between -3 and -10‰; δ18O: between 5 and 25‰, and δD: between -40 and -100‰) and radiogenic isotopes (87Sr/86Sr: 0.7037-0.7100) in different mineral concentrates shows wide ranges of values that involve different types of fluids and processes. It is necessary to highlight the presence of surface fluids (with variable prevalence of seawater or of meteoric water according to different formations), variations in the fluid/rock relationship and in the oxygen fugacity and participation of C of diverse source (biogenic origin, dissolution of carbonate rocks). In conclusion, the use of metamorphic minerals infilling open space in very low-grade metamorphic terrain seems to be a very important useful tool for the complete characterisation of metamorphic fluids in such very low P-T processes.Departamento de Mineralogía y Petrología (Universidad de Granada) Departamento de Didáctica de las Ciencias Experimentales (Universidad de Granada

Marketing relacional en la banca de personas de la Zona Centro-Sur de Chile

176 p.Este trabajo esta orientado a determinar la importancia de algunas variables como Ia satisfacción, la confianza y el compromiso y de que manera estas inciden en las relaciones de las instituciones financieras de la zona centro sur de Chile con sus clientes de tal manera que se pueda generar una mayor lealtad. En este planteamiento, partimos del supuesto que el cliente satisfecho se transforma en un cliente leal, nuestro propósito es probar precisamente que la satisfacción por si sola no es una variable suficiente para la búsqueda de la lealtad del cliente y planteamos que esta debe interactuar con otras variables para producir un valor adicional en la relación con el cliente lo que en definitiva podrá generar clientes leales. Para Ilegar a nuestro cometido, hemos recopilado información bibliografica, opinión de expertos, aplicación de encuesta a los usuarios, etc. Esta información es analizada y procesada posteriormente con herramientas especializadas, las que nos permiten conocer el nivel de los encuestados en varios aspectos y principalmente demostrar que, efectivamente, la lealtad de los clientes financieros en este sector (centro sur de Chile) no es una función de la variable satisfacción solamente y que por el contrario esta debe interactuar con otras variables como la confianza y el compromiso. Finalmente hemos concluido que si bien la relación entre estas variables no esta dada por indicadores estadísticos tan significativos, el objetivo principal de esta investigación se cumple

Aplicación del método K-Ar a la datación de fenómenos de metamorfismo de muy bajo grado en sistemas máficos. Cordillera de los Andes, Chile Central

Fichero original en: http://www.ehu.eus/sem/macla_pdf/macla6/Macla6_323.pdfEn el presente trabajo se presenta la aplicación del método K-Ar aplicado a celadonitas y otros filosilicatos ricos en K desarrollados en rocas volcánicas y volcanoclásticas de la Cordillera de la Costa y de los Andes de Chile central. El significado de la edad obtenida por estos métodos permitirá ayudar a comprender la historia evolutiva de estos sectores del orógeno andino.Universidad de Granada. Departamento de Mineralogía y PetrologíaEstre trabajo se ha realizado con fondos procedentes del proyecto BTE-2003-06265 (MEC/FEDER), del proyecto Fondecyt (Chile 1031000, Fundación Andes (C-13680/3) y el proyecto REIN 02/2003 del Departamento de Investigación de la Universidad de Chile y del Grupo de Investigación RNM131 de la Junta de Andalucía. J. Carrillo agradece al MEC su beca postdoctoral

Incubation Period of Hantavirus Cardiopulmonary Syndrome

The potential incubation period from exposure to onset of symptoms was 7–39 days (median 18 days) in 20 patients with a defined period of exposure to Andes virus in a high-risk area. This period was 14–32 days (median 18 days) in 11 patients with exposure for <48 hours

Draft genome sequence of chloride-tolerant Leptospirillum ferriphilum Sp-Cl from industrial bioleaching operations in northern Chile

Indexación: Web of Science; PubMedLeptospirillum ferriphilum Sp-Cl is a Gram negative, thermotolerant, curved, rod- shaped bacterium, isolated from an industrial bioleaching operation in northern Chile, where chalcocite is the major copper mineral and copper hydroxychloride atacamite is present in variable proportions in the ore. This strain has unique features as compared to the other members of the species, namely resistance to elevated concentrations of chloride, sulfate and metals. Basic microbiological features and genomic properties of this biotechnologically relevant strain are described in this work. The 2,475,669 bp draft genome is arranged into 74 scaffolds of 74 contigs. A total of 48 RNA genes and 2,834 protein coding genes were predicted from its annotation; 55 % of these were assigned a putative function. Release of the genome sequence of this strain will provide further understanding of the mechanisms used by acidophilic bacteria to endure high osmotic stress and high chloride levels and of the role of chloride-tolerant iron-oxidizers in industrial bioleaching operations.https://standardsingenomics.biomedcentral.com/articles/10.1186/s40793-016-0142-

Clientelism, Turnout and Incumbents’ Performance in Chilean Local Government Elections

Parties and their leaders are linked programmatically and non-programmatically with citizens, incentivising the latter to vote in elections and seeking to influence their choices. In this paper, we analyse the effects of politician–voter linkages on the electoral performance of incumbent mayors in Chile and on electoral turnout in their municipalities. To measure the linkages, we use personal meetings that mayors hold with citizens. While some mayors use this mechanism to solve problems of general interest (programmatic meetings), others do so to provide bureaucratic advantages or benefits for their constituents (non-programmatic meetings). We use a database of 44,162 personal meetings aggregated from Chile’s 345 municipalities. We argue that increases in the number of meetings positively impact electoral turnout and increase the chances of success for incumbent mayors when they compete for re-election. This effect is particularly significant in the case of electoral performance and the re-election of mayors in municipalities with high levels of rurality. Finally, we report that the meetings not only help mayors to link with their constituents but also help them to publicise their political work