The rethinking and enhancement of the natural and cultural heritage of the cultural landscapes: the case of Sečovlje and Janubio saltpans

Cultural landscapes represent a complex category where the nature-culture dichotomy seem to not be able to unfold the main features and the profound relations that humans have with the environment. Drawing on ethnographic data collected in the saltpans of Se-ovlje (Slovene Istria) and Janubio (Lanzarote--Canary Islands) this article examines informant`s perceptions about the awareness of the importance and the enhancement of the holistic values of both saltpans, as well as the impacts and benefits of tourism. Comparing these perceptions about both cultural landscapes, I try to suggest that the complex fruitfully relations between humans and nature in these saltpans are at odds with the neoliberal logic of nature which exploit and commoditize its resources depriving them of their respective agency. A sustainability to contrast the harmful activities of the market ought to be understood not as a simply isolation and fencing of nature for the sake of conservation, but as a preservation that need to foster the continuity of the deep interactions between human culture and non-human nature which are the core of the cultural landscapes

Classical Bianchi type I cosmology in K-essence theory

We use one of the simplest forms of the K-essence theory and we apply it to the classical anisotropic Bianchi type I cosmological model, with a barotropic perfect fluid modeling the usual matter content and with cosmological constant. The classical solutions for any but the stiff fluid and without cosmological constant are found in closed form, using a time transformation. We also present the solution whith cosmological constant and some particular values of the barotropic parameter. We present the possible isotropization of the cosmological model, using the ratio between the anisotropic parameters and the volume of the universe and show that this tend to a constant or to zero for different cases. We include also a qualitative analysis of the analog of the Friedmann equation.Comment: 15 pages with one figure, accepted in Advances in High Energy Physic

SOLUBILIZATION OF P-ALKYLPHENOLS IN PLURONICS F-68 AND F-127 MICELLES: PARTITION COEFFICIENTS AND EFFECT OF SOLUTE ON THE AGGREGATE STRUCTURE

Indexación: Web of Science; Scielo.The partition of a series of substituted phenols between water and polymer micelles formed by Pluronic F-68 and F-127 has been studied. The formation of micelles by these block copolymers has been evidenced by steady-state fluorescence and dynamic light scattering. The data show that micelles and larger aggregates are formed above the critical micelle concentration. In presence of p-alkylphenols a micelle rearrangement occurs that leads to the formation of just one and large aggregate. This effect depends both on polymer and phenols structures. The partition coefficients and the standard free energies of transfer from the aqueous to the micellar phases were determined. The incremental free energy for a methylene group are 2.88 kJ mol-1 and 1.65 kJ mol-1 for F-127 and F-68, respectively. This difference is explained in terms of the core sizes that are determined by the length of the PPO block.http://ref.scielo.org/xfqmx

Oil spill in Quintero bay : ensuring the governability on a sacrifice zone

El siguiente artículo se enmarca en uno de los principales episodios de contaminación que han acontecido en la bahía de Quintero, donde se derramaron cerca de 37 mil litros de petróleo crudo en Septiembre del año 2014. Este derrame es comprendido como un episodio más dentro de una gran cadena de contaminación, para una zona donde se concentran cerca de 17 empresas que desarrollan una actividad industrial, energética y portuaria que es fundamental para el andamiaje del modelo productivo y económico chileno. Lo que desarrollaremos a continuación se concentra en la forma de gobernanza de esta zona, en cuanto a la mantención de una gobernabilidad que permite la reproducción del modelo y el ocultamiento de las contradicciones y fisuras que se producen debido a su intensa actividad industrial. Lo anterior lo analizaremos a través del estudio de las acciones y los discursos de los protagonistas del conflicto, evidenciado en la cobertura realizada por el diario “El Mercurio de Valparaíso". Esto permitirá un acercamiento a la comprensión de la nueva gobernanza neoliberal, donde el empresariado en conjunto al Estado, conllevan a la invisibilización de las contradicciones y la aceptación por parte del conjunto de la sociedad sobre este modelo de acumulación.The aim of this paper is to discuss one of the most important contamination episodes that happened in Quintero’s bay where, in September of 2014, 37 thousand liters of oil were spilled. This is understood as part of a bigger contamination chain. Quintero’s bay contains 17 companies that develop industrial, energy and port activities that are fundamental for the productive and economic Chilean model. The aim of this paper is to develop the form of governance in this area and the maintenance of a governability which allows the reproduction of this model, and conceals its contradictions and fissures that are produced because of its intense industrial activity. We can prove this by analyzing actions and speeches of those involved in this conflict, which are displayed in “El Mercurio de Valparaiso". This will allow a better understanding of the new neoliberal government, where the companies and the State generates the invisibility of contradictions and the acceptance of this accumulation model by the society.Fil: Espinoza Almonacid, Luis. Universidad de Playa Ancha (Valparaíso, Chile

Development of safe and ready to eat frozen oyster products using microwave steam-venting technology

The Gulf Coast region, principally Louisiana, leads the nation in oyster production. The National Marine Fisheries Service reported that 19.7 million pounds of oyster meat, valued at $62.3 million dollars were harvested from the Gulf Coast region in 2010. One of the main concerns for this industry is the health risk associated with the consumption of oysters, particularly for at-risk populations. Oysters are filter feeders. They tend to concentrate microbes present in surrounding waters, some of which can cause severe illness in susceptible humans. Among pathogens that contaminate the gastrointestinal system of oysters, Vibrio spp (especially V. parahaemolyticus and V. vulnificus) are of greatest concern. The overall goal of the proposed study was to develop a protocol for the production of high quality and safe frozen oyster products in steam venting packages that are microwavable. Based on this study, a combination of 100 g of frozen oyster meat with 200 g of frozen mixed vegetables provided retention of almost 95% of the meat’s moisture after 300 s of microwave cooking. In addition, the achieving of an internal temperature of 90°C after 258 s of microwave cooking assured inactivation of naturally occurring pathogenic bacteria in oyster meat. The study demonstrated that steam venting technology could be used to inactivate pathogenic bacteria in frozen oysters and oyster products cooked in the steam packages retained the texture and the desirable flavor composition traditionally associated with oysters

Biological treatment of industrial wastewater containing high concentrations of linear alkylbenzene sulfonate (LAS)

Lauryl Alkylbenzene Sulfonate (LAS) is the major anionic surfactant used worldwide in detergent and household cleaning product formulations. Its biodegradation and removal has been extensively studied in wastewater treatment facilities and laboratory-scale tests at low concentrations (\u3c10 mg/L) typical of those encountered in municipal wastewater treatment plants. Less effort, however, has been expended investigating degradation of higher concentrations of LAS representative of those expected in wastewater generated at LAS manufacturing operations. The research described in this thesis was conducted to study biological processes for treating wastewaters containing high concentrations (e.g., 400 mg/L) of LAS. Initial experiments were carried out using a respirometry technique, and subsequently, three different laboratory-scale bioreactor systems. The three systems studied were a Sequencing Batch Reactor (SBR), a Sequencing Batch Biofilm Reactor (SBBR), and an Intermittent Cycle Extension Aeration System (ICEAS). The SBR and ICEAS were operated on a five-day cycle basis with a hydraulic retention time of four days. The SBBR was operated mainly in a two-day cycle having a hydraulic retention time of ten days as well, and polyurethane foam cubes were used as a support medium for attached biomass growth. The three systems were compared on their ability to remove LAS measured in terms of total organic carbon (TOC) and methylene blue active substances (MBAS). The reactors were also compared on the basis of foam production. The ICEAS showed the best performance in terms of controllable foam production while exhibiting a capacity for effectively dealing with transient periods of elevated loading. When a short Fill period was used, the SBR and SBBR had the disadvantage of producing excessive foaming, and an intermittent aeration strategy was required avoid overflow

Distribution of PSU Scores for Dentistry Schools in Chile during 2012-2014.

To describe distribution of applicants’ scores in the University Selection Test (Prueba de Selección Universitaria, PSU) for dentistry in Chilean universities associated with the PSU test between 2012 and 2014. Methodology: A retrospective study based on the applicants’ records to dentistry in universities associated with the PSU admission process from 2012 to 2014. Results: There were twenty careers, representing sixteen universities associated with the PSU process. From them, ten were private and ten traditional. Overall, 19,469 students applied and 6,105 were summoned to fill 4,828 vacancies during the period under study. There was a drop in the number of applicants per vacancy from 5.30 to 3.11 and the selection per quota rose from 1.23 to 1.32, varying mostly in private universities. The weighted average score was 662.78 ± 44.73 with a steady decline without differences regarding sex mostly in private universities. Conclusions: During 2012-2014, there were fewer candidates for dentistry, as well as lower scores primarily affecting private schools.Keywords: "Students, Dental" [MeSH], Chile, "Career Choice" [MeSH], "School Admission criteria" [MeSH].Distribución de los puntajes PSU en la carrera de Odontología en Chile durante 2012-2014.Describir la distribución de los puntajes PSU de los postulantes a odontología en las universidades chilenas adscritas al proceso PSU durante los años 2012 a 2014. Metodología: Estudio retrospectivo a partir de los registros de postulantes a las carreras de odontología en universidades adscritas al proceso PSU en las admisiones 2012 a 2014. Resultados: Se incluyeron 20 carreras, que representan a 16 universidades adscritas al proceso PSU, 10 de ellas privadas y 10 tradicionales En términos globales durante el período en estudio postularon 1.9469 personas, siendo 6.105 seleccionados en primer llamado para un total 4.828 cupos disponibles; se observa una disminución de los postulantes por cupo desde 5,30 a 3,11 y los llamados por cupo disponible subieron desde 1,23 a 1,32, variando mayormente en universidades privadas; el puntaje ponderado promedio fue 662,78 ±44,73 con una baja sostenida, mayor en universidades privadas y sin diferencias por sexo. Conclusiones: Durante el periodo 2012-2014 hubo menos postulantes a odontología, así como una baja de los puntajes que afecta principalmente a planteles privados.Palabras clave: Estudiantes de odontología, Chile, elección de carrera, admisión universitaria

Harwareshop V1.0

Este sistema de información le permite al usuario un mayor manejo de todos los procesos, en Venta se registran la información correspondiente a número de la factura, forma de pago (Contado, Crédito), cliente (Particular, Registrado en la BD), se registran además los datos de los productos que se están agregando a la lista de compra. El modulo configuración permite al usuario configurar el medio de cómo será impreso el recibo de la venta realizada, tener una vista previa de las ventas totales del día o de días anteriores y la configuración del tiket que es el tipo nuevo de recibo que se aplicara e la empresa. Este proyecto dará un aporte de importancia para los usuarios del establecimiento debido a que no se contaba con un sistema que tuviera toda la característica necesarias para resolver el problema actual

Perfiles clinicos de personalidad en consumidores y no consumidores de marihuana

El objetivo principal de este estudio es explorar la relación existente en los patrones de personalidad desadaptativa del modelo dimensional de Millon entre consumidores y no consumidores de marihuana. La muestra estuvo constituida por 82 participantes peruanos de ambos sexos divididos en dos grupos: consumidores de marihuana (n=41; Edad Promedio = 24,3; Desviación Estándar = 7,65) que asistieron a las sesiones de orientación y consejería en el Programa Lugar de Escucha del Centro de Información y Educación para la Prevención del Abuso de Drogas (CEDRO) y un grupo de no consumidores de marihuana (n=41; Edad Promedio = 30,8; Desviación Estándar = 4,37) de una entidad crediticia privada. La recolección de los datos se realizó mediante el Inventario Clínico Multiaxial de Millon (MCMI-II) y la Ficha de Atención (FdA). Los resultados mostraron diferencias significativas en el grupo de consumidores y no consumidores de marihuana en la mayoría de las escalas de patrones clínicos y patología severa de personalidad, no encontrándose diferencias significativas en la escala de dependencia (t=-2,66, p [bilateral] =,010). Asimismo, se encontró diferencias significativas en la mayoría de las escalas de los síndromes clínicos y severos de personalidad en ambos grupos, en relación a la escala de ansiedad esta no manifestó diferencias significativas entre el grupo de consumidores y no consumidores de marihuana (t=5,22 p [bilateral]=,640). Los resultados encontrados en este estudio sugieren que existen diferencias marcadas entre los patrones de personalidad desadaptativa de la teoría de Millon entre los consumidores y no consumidores de marihuana, por lo que sería importante tener en cuenta estas diferencias en el proceso de tratamiento de las adicciones cannábicas