376 research outputs found

    Ontology Matching with CIDER: evaluation report for OAEI 2011

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    CIDER is a schema-based ontology alignment system. Its algorithm compares each pair of ontology terms by, firstly, extracting their ontological contexts up to a certain depth (enriched by using lightweight inference) and, secondly, combining different elementary ontology matching techniques. In its current version, CIDER uses artificial neural networks in order to combine such elementary matchers. In this paper we briefly describe CIDER and comment on its results at the Ontology Alignment Evaluation Initiative 2011 campaign (OAEI’11). In this new approach, the burden of manual selection of weights has been definitely eliminated, while preserving the performance with respect to CIDER’s previous participation in the benchmark track (at OAEI’08)

    Estudio comparativo de los de signos vitales, en pacientes sanos (ASA I) sometidos a cirugía de exodoncia, con y sin sedación oral con Midazolam.

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    Tesis para optar al Título de Cirujano – DentistaResumen. Objetivo: el objetivo de este estudio fue comparar los signos vitales de pacientes sometidos a exodoncia con y sin sedación oral con midazolam. Método: 60 pacientes sanos entre 12 y 65 años de edad con indicación de exodoncia de una o más piezas dentarias, 30 de los cuales tenían indicación de ansiólisis con midazolam vía oral de 7.5 mg y 30 sin indicación de ansiólisis, se sometieron a medición de signos vitales (presión arterial, frecuencia cardiaca y saturación de oxigeno) durante el procedimiento de exodoncia, se registraron los signos vitales en 4 momentos operatorios: preanestesia, postanestesia, intervención y recuperación. Resultados: no se observan diferencias significativas en los signos vitales de los pacientes con ansiólisis y sin ansiólisis con midazolam. Conclusiones: el midazolam utilizado como ansiolítico en cirugía de exodoncias no modifica los signos vitales significativamente y se consideraría seguro para el uso clínico, sin embargo se recomienda evaluar otros parámetros no considerados en este estudio como el estrés pre quirúrgico con el objeto de evaluar las repercusiones sobre los signos vitales.Abstract. Aim: The aim of this study was to compare the vital signs of patients undergoing tooth extraction with and without oral sedation with midazolam. Methods: 60 healthy patients between 12 and 65 years with extraction indication in one or more teeth, 30 of them had the indication to take oral anxiolysis with midazolam of 7.5 mg and 30 without the indication of anxiolysis, the vital signs (arterial pressure, heart rate, oxygen saturation) were measured to them during the extraction procedure and registered in 4 operatory moments: anesthesia, preanesthesia, intervention and recovery Results: no significant difference in the vital signs of patients with and without anxiolysis with midazolam. Conclusions: midazolam used as an anxiolytic in surgery extractions not alter vital signs significantly and would be considered safe for clinical use, however it is recommended evaluate other parameters not considered in this study as the pre-surgical stress in order to assess the impact on vital sign

    Classification, characterisation and strategies for improvement of cattle and sheep pasture systems in marginal areas of Southern Chile

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    Pasture-based livestock systems in farms with medium or low size are especially important in less favored areas and are valuable for society. For these systems to survive, it is necessary to obtain an acceptable level of productivity and ensure commercialization of the products. This study was carried out in the district of Rio Ibáñez, General Carrera Province, in the XI (Aysén) Region of Chile. The sample consisted of 28 small-scale livestock farmers with dual-purpose cattle production; 16 of them also produced sheep for meat. The empirical data produced 55 variables which were subjected to multivariate analysis; three main components were obtained which explain 72.1 % of the variance. By cluster analysis it was obtained four groups with characteristics which varied by farm size, age and personal situation of farmers, farm management and farm profitability. The principal problems found are low productivity in the herds and the poor marketing channels of animals produced. In two groups, due to the low size and poor management, the profitability of the farms is very low and this may compromise their future. To improve production systems, the training and advice of farmers should be strengthened, investment should be supported, especially for young people, and the farmer partnership should be promoted. There is also a need to diversify the families' sources of income (sale of other farm products or handicrafts and touristic activities).Ministerio de Economía de Chile Innova-CORFO Project 11 NTEC 1279

    Evaluacion y propuesta de mejoramiento de la distribucion espacial de una red de establecimientos educacionales utilizando Geomatica. Area de estudio: zona urbana de Parral

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    77 p.La geomática en conjunto con la teoría de redes y la programación lineal constituyen una poderosa herramienta para la planificación y gestión de problemas territoriales muy diversos. No obstante, las aplicaciones más habituales se han referido a temas relativos a medio ambiente, urbanismo, infraestructura, sector forestal y agrícola. En el presente proyecto de graduación se expone una aplicación de los SIG en una temática todavía poco estudiada y referida a la gestión de equipamientos sociales, particularmente a evaluar y proponer medidas de mejoramiento a la distribución espacial de los establecimientos educacionales del área urbana de la comuna de Parral. Los principales resultados demuestran que en la actualidad existe una pésima distribución espacial de los establecimientos educacionales en comparación con la situación óptima obtenida mediante la utilización de dichas técnicas y procedimientos. Al comparar ambos escenarios, de aprecia una notable mejora, pasando de 1.256 a 235 viviendas no cubiertas por el servicio, considerando un área de influencia de 700 metros. Además, la eficiencia espacial de la distribución mejora ostensiblemente, bajando de 933.752 a 827.577 unidades de recorrido para la distancia total recorrida. Por lo anteriormente expuesto, la integración de geomática, teoría de redes y programación lineal son una poderosa herramienta para la evaluación y generación de propuestas de mejoramiento para la localización – asignación de instalaciones deseables, como ocurre en este caso. Por último, es posible consignar que la metodología empleada es factible de ser replicada en otras situaciones y realidades siempre que la información necesaria se encuentre disponible para estos propósitos. Sin embargo es importante consignar que el estudio planteado, considera solamente las características espaciales de la red de establecimiento, sin considerar otros parámetros de calidad educacional./ ABSTRACT: Geomatics in conjunction with the theory of linear programming and networks are a powerful tool for the planning and management of territorial problems very diverse However, the most common applications have addressed issues relating to the environment, urban planning, infrastructure, forestry and agriculture. The present draft graduation presents an application of GIS in a thematic still little studied and referred to the management of social amenities, particularly to evaluate and propose measures to improve the spatial distribution of educational establishments in the urban area of the commune Parral. The main results show that at present there is a very bad spatial distribution of educational establishments compared with the optimal situation obtained through the use of these techniques and procedures. When comparing the two scenarios, see a marked improvement, rising from 1,256 to 235 homes not covered by the service, considering a catchment area of 700 meters. In addition, the spatial distribution efficiency improves dramatically, dropping from 933,752 to 827,577 units for the tour total distance travelled. Thus, the integration of geomatics, theory of linear programming and networks are a powerful tool for generating and evaluating proposals for improving the location - allocation of facilities desirable, as in this case. Finally, it is possible that the appropriate methodology is feasible to be replicated in other situations and realities provided that the necessary information is available for these purposes. However it is important to appropriate that the study raised, considers only the spatial characteristics of the network, without considering other parameters of educational quality

    Evaluación de la calidad del servicio educativo para determinar el nivel de fidelidad estudiantil en el plantel educativo San Agustin

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    El objetivo de este articulo esta, en revisar la fundamentación teórica de la calidad en la gestión administrativa e identificar la estructura organizacional del Plantel Educativo San Agustín, para mejorar los procesos administrativos, y establecer datos que permitan generar estrategias más ambiciosas. Para lo cual se ha basado en el mejoramiento continuo de la calidad, así como la implementación de indicadores de misión establecidos en las necesidades, expectativas y lineamientos del Plantel Educativo San Agustín. Mejorando la calidad de los clientes externos y mejorando el ambiente laboral. Para ejecutar la evaluación de la calidad del servicio administrativo, educativo y determinar la fidelidad del alumnado se realizó una investigación de tipo cuantitativo, utilizando un método deductivo – inductivo. La recolección de la información se obtuvo principalmente de la técnica de encuesta a padres de familia del Plantel Educativo San Agustín, el cual fue estructurado de acuerdo a variables obtenidas de la actual posición del Plantel Educativo San Agustín. Culminado una vez el artículo académico, se presenta las siguientes recomendaciones que son: seguir manteniendo el plan de gestión de calidad que está en marcha, inversión para la ejecución de un plan de marketing y ampliar la estructura del Plantel Educativo San Agustín.The objective of this article is to review the theoretical foundation of quality in administrative management, and identify the organizational structure of the San Agustín Educational Campus, to improve administrative processes, and establish data that allow generating more ambitious strategies. As a result, there has been a continuous quality improvement, as well as the implementation of mission indicators established in the needs, expectations and guidelines of the San Agustín Educational Campus. This has caused an improvement on the quality of service to external clients and an improvement to the work environment. To carry out the evaluation of the quality of the administrative and educational service, as well as to determine the loyalty of the students, quantitative research was performed, using a deductive-inductive method. The collection of information was obtained mainly from the technique of surveying parents of the San Agustín Educational Campus, which was structured according to variables obtained from the current position of the San Agustín Educational Campus. Once the academic article has been completed, the following recommendations are presented: continue maintaining the quality management plan that is underway, provide finances for the execution of a marketing plan and expand the infrastructure of the San Agustín Educational Campus

    Activity of wine against campylobacter jejuni

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    This study focuses on the activity of wine against the important food-borne pathogen Campylobacter jejuni. The kinetics of inactivation of two strains of C. jejuni (one food-borne and one clinical) were characterised in various scenarios of exposure to wine and wine components. Undiluted wine was found to rapidly inactivate C. jejuni (>6D inactivation within 30 s); further inactivation data were obtained from experiments performed in wine diluted with water (1:2 and 1:4). Experiments with isolated antimicrobial fractions of wine (ethanol and certain organic acids) suggest that these two components act synergistically, demonstrating an inactivation capacity similar to wine itself. The results indicate that the exposure of contaminated food to wine, as in marinade conditions, Significantly reduces the number of viable cells of C. jejuni. A model stomach, containing a food matrix and a synthetic gastric fluid, was used to infer the effect of wine against C. jejuni in a consumption-like scenario. Wine was found to potentiate the anti-Campylobacter effect of gastric fluid. The results strongly suggest that the ingestion of wine during a meal may greatly diminish the quantity of C. jejuni persisting further in the alimentary tract, thus lowering the risk of infectio
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