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Sample records for afiliados al seguro

  1. Family healthcare expenditure on children affiliated to the Medical Insurance for a New Generation Gasto en salud de los hogares con niños afiliados al Seguro Médico para una Nueva Generación

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    Evelyne Eugenia Rodríguez-Ortega

    2012-01-01

    Full Text Available OBJECTIVE: To analyze household health expenditures on children who are beneficiaries of the Medical Insurance for a New Generation (SMNG, program created in 2007 to cover healthcare costs of children without social security born after December 1st, 2006. MATERIALS AND METHODS: Using the SMNG National Survey, out-the-pocket and catastrophic spending on child health were calculated using several definitions. Results are presented by socioeconomic level, rural and urban areas and for Oportunidades beneficiaries. RESULTS: About 63.3% of households spent an average annual amount of 3320 Mexican pesos (MEX$ on healthcare for beneficiary children. Between 4.3 and 11.6% of households experienced catastrophic spending, depending on the definition adopted. Due to economic trouble, 15.5% of households postponed and 10.0% cancelled medical care for their child. CONCLUSIONS: Even though children are affiliated to the SMNG, the economic burden associated with attending their health is still an issue for families.OBJETIVO: Analizar el gasto en salud y gasto catastrófico en los niños beneficiarios del Seguro Médico para una Nueva Generación (SMNG, programa creado en 2007 para niños sin seguridad social nacidos a partir del 1o de diciembre de 2006. MATERIAL Y MÉTODOS: Con información de la Encuesta Nacional del SMNG se calculó el gasto en salud y el gasto catastrófico de los hogares de acuerdo a varias definiciones. Los resultados se presentan por nivel socioeconómico, para zonas urbanas y rurales y por pertenencia al programa Oportunidades. RESULTADOS: El 63.3% de los hogares gastaron en la salud de los niños un promedio anual de 3320 pesos. Entre el 4.3 y el 11.6% de los hogares incurrieron en gasto catastrófico, dependiendo de la definición. Debido a problemas económicos, 15.5% pospuso y 10% no realizó la atención médica del niño. CONCLUSIONES: Aún cuando los hogares están afiliados al SMNG, todavía enfrentan restricciones econ

  2. Derivados vinculados al seguro.

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    De Paz Cobo, Sonia

    2003-01-01

    Full Text Available El presente trabajo tiene como objetivo la presentación de los derivados financieros como instrumentos de cobertura de los riesgos del seguro, así como de los principales proyectos que se desarrollan a través de los mismos, como por ejemplo los derivados sobre el clima. Hay que tener presente las pérdidas multimillonarias ocasionadas en casos como el de la banca Baring’s, o el de Orange County, por citar algunas, que si bien ciertos autores afirman que están en relación directa con el uso de estos productos, no podemos olvidar que los instrumentos derivados se desarrollaron con el objetivo principal de proteger al usuario de la posible volatilidad del activo subyacente. Ya en la industria aseguradora los derivados vinculados a tal actividad son instrumentos donde el pago se condiciona a la ocurrencia de su suceso de siniestro, o serie de sucesos múltiples que disparen las pérdidas. Tras el repaso efectuado y la descripción que este tipo de instrumentos puede tener en la gestión del riesgo por parte de la industria aseguradora, concluiremos con la exposición de las relaciones con el reaseguro tradicional así como una breve referencia al futuro de este tipo de instrumentos

  3. Derivados vinculados al seguro.

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    De Paz Cobo, Sonia

    2003-01-01

    El presente trabajo tiene como objetivo la presentación de los derivados financieros como instrumentos de cobertura de los riesgos del seguro, así como de los principales proyectos que se desarrollan a través de los mismos, como por ejemplo los derivados sobre el clima. Hay que tener presente las pérdidas multimillonarias ocasionadas en casos como el de la banca Baring’s, o el de Orange County, por citar algunas, que si bien ciertos autores afirman que están en relación directa con el us...

  4. Feeding practices and nutritional status of Mexican children affiliated to the Medical Insurance for a New Generation Prácticas de alimentación y estado de nutrición de los niños mexicanos afiliados al Seguro Médico para una Nueva Generación

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    Samuel Flores-Huerta

    2012-01-01

    Full Text Available OBJECTIVE: To identify feeding practices and nutritional status in children affiliated to the Medical Insurance for a New Generation (SMNG. MATERIALS AND METHODS: An in-home survey addressed to mothers which included anthropometric measures of children; performed in March and April 2009 in Mexican States. RESULTS: The prevalence of any form of breastfeeding was (months 6-11: 67.9%; 12-17: 43.6%; 18-23: 26.4%; >23: 16.7%; with higher figures in rural children. BF duration was eight months. Continued breastfeeding at 1 year of age was 43%. At 1 year of age, almost all children consumed fruits, vegetables, cereals and legumes; however, 13.5%-20.3% did not consume foods of animal origin, but ~84% and ~60% consumed fried and sweet foods and soft drinks. Nutrisano (a food supplement was consumed by just 2/3 of the Oportunidades Children. Stunting and overweight were the predominant alterations of nutritional status. CONCLUSION: Improving the nutritional status of children affiliated to the SMNG requires promotion of appropriate healthy dietary practices and the surveillance of infant growth.OBJETIVO: Conocer las prácticas de alimentación y estado nutricio de niños protegidos por el Seguro Médico para una Nueva Generación (SMNG. MATERIAL Y MÉTODOS: Encuesta en hogares realizada en marzo y abril de 2009 en los diferentes estados de México. RESULTADOS: La prevalencia de lactancia materna fue (meses 6-11: 67,9%; 12-17: 43,6%; 18-23: 26.4%;> 23: 16,7%, la duración fue ocho meses. La lactancia materna continuada a 1 año fue 43%. Al año, casi todos los niños consumen frutas y verduras, cereales y leguminosas, pero los de origen animal no están consolidados. Una gran proporción de niños de un año consume alimentos potencialmente obesogénicos; 2/3 de los niños de Oportunidades consumen Nutrisano. El retraso del crecimiento y el sobrepeso fueron las alteraciones predominantes del estado nutricional. CONCLUSIÓN: Mejorar el estado nutricional de

  5. Experiencias de farmacovigilancia activa en pacientes afiliados al sistema general de seguridad social en salud

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    Machado Alba, Jorge Enrique; Moncada Escobar, Juan Carlos; Giraldo Giraldo, claudia

    2014-01-01

    Objetivos: determinar los posibles resultados negativos asociados a la medicación mediante la metodología de búsqueda activa de posibles interacciones medicamentosas en bases de datos de pacientes afiliados al Sistema General de Seguridad Social en Salud. Metodos: A partir de las bases de datos de dispensación de medicamentos de Audifarma S.A a unos 4 millones de usuarios del país, se hizo una revisión sistemática de estadísticas de una serie de medicamentos identificados por presentar int...

  6. Farmacovigilancia activa en pacientes afiliados al sistema general de seguridad social en salud

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    Jorge E Machado-Alba; Giraldo-Giraldo, Claudia; Moncada-Escobar, Juan C.

    2012-01-01

    Objetivos Determinar los posibles resultados negativos asociados a la medicación mediante la metodología de búsqueda activa de posibles interacciones medicamentosas en bases de datos de pacientes afiliados al Sistema General de Seguridad Social en Salud. Métodos A partir de las bases de datos de dispensación de medicamentos de Audifarma S.A a unos 4 millones de usuarios del país, se hizo una revisión sistemática de estadísticas de una serie de medicamentos identificados por presentar interacc...

  7. Prevalencia de factores de riesgo cardiovascular en pacientes con dislipidemia afiliados al sistema de salud en Colombia

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    Jorge E Machado-Alba; Manuel E Machado-Duque

    2013-01-01

    Objetivos. Determinar la prevalencia de factores de riesgo cardiovascular y el riesgo de presentar un evento cardiocerebrovascular a diez años, en pacientes con dislipidemia afiliados al sistema de salud colombiano. Materiales y métodos. Estudio retrospectivo que tomó una muestra probabilística y estratificada de 551 pacientes con diagnóstico de dislipidemia, a partir de una población de 41 201 personas con tratamiento hipolipemiante en diez ciudades colombianas entre enero de 2010 y junio de...

  8. Prevalencia de factores de riesgo cardiovascular en pacientes con dislipidemia afiliados al sistema de salud en Colombia

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    Jorge E Machado-Alba

    2013-06-01

    Full Text Available Objetivos. Determinar la prevalencia de factores de riesgo cardiovascular y el riesgo de presentar un evento cardiocerebrovascular a diez años, en pacientes con dislipidemia afiliados al sistema de salud colombiano. Materiales y métodos. Estudio retrospectivo que tomó una muestra probabilística y estratificada de 551 pacientes con diagnóstico de dislipidemia, a partir de una población de 41 201 personas con tratamiento hipolipemiante en diez ciudades colombianas entre enero de 2010 y junio de 2011. A partir de registros médicos, se evaluaron variables sociodemográficas, antropométricas, bioquímicas y factores de riesgo. Para establecer el riesgo cardiovascular a diez años se empleó el algoritmo de Framingham. Resultados. Se encontraron 311 (56,4% mujeres, con edad promedio global de 64,9 ± 10,8 años. La probabilidad promedio de desarrollar un episodio cardiovascular a 10 años fue del 14,0%. Los otros factores de riesgo cardiovascular más frecuentes fueron hipertensión (93,2%; hombre mayor de 55 años (35,8%; mujer mayor de 65 años (28,1%; diabetes mellitus (28,5%; historia familiar de enfermedad coronaria (17,2%; historia personal de enfermedad coronaria o cerebrovascular (16,7%, y tabaquismo (6,4%. Los tipos de dislipidemia encontrados fueron: mixta (46,6%, hipercolesterolemia aislada (29,4% e hipertrigliceridemia (20,3%. Conclusiones. Los pacientes tratados son hombres y mujeres mayores de 65 años que padecen principalmente dislipidemia mixta, y tienen una probabilidad del 14,0% de sufrir un episodio cardiovascular en los próximos diez años. Se deben promover políticas públicas saludables para reducir la presencia de hipertensión y diabetes mellitus.

  9. Prevalencia de factores de riesgo cardiovascular en pacientes con dislipidemia afiliados al sistema de salud en Colombia

    Directory of Open Access Journals (Sweden)

    Jorge E Machado-Alba

    2013-04-01

    Full Text Available Objetivos. Determinar la prevalencia de factores de riesgo cardiovascular y el riesgo de presentar un evento cardiocerebrovascular a diez años, en pacientes con dislipidemia afiliados al sistema de salud colombiano. Materiales y métodos. Estudio retrospectivo que tomó una muestra probabilística y estratificada de 551 pacientes con diagnóstico de dislipidemia, a partir de una población de 41 201 personas con tratamiento hipolipemiante en diez ciudades colombianas entre enero de 2010 y junio de 2011. A partir de registros médicos, se evaluaron variables sociodemográficas, antropométricas, bioquímicas y factores de riesgo. Para establecer el riesgo cardiovascular a diez años se empleó el algoritmo de Framingham. Resultados. Se encontraron 311 (56,4% mujeres, con edad promedio global de 64,9 ± 10,8 años. La probabilidad promedio de desarrollar un episodio cardiovascular a 10 años fue del 14,0%. Los otros factores de riesgo cardiovascular más frecuentes fueron hipertensión (93,2%; hombre mayor de 55 años (35,8%; mujer mayor de 65 años (28,1%; diabetes mellitus (28,5%; historia familiar de enfermedad coronaria (17,2%; historia personal de enfermedad coronaria o cerebrovascular (16,7%, y tabaquismo (6,4%. Los tipos de dislipidemia encontrados fueron: mixta (46,6%, hipercolesterolemia aislada (29,4% e hipertrigliceridemia (20,3%. Conclusiones. Los pacientes tratados son hombres y mujeres mayores de 65 años que padecen principalmente dislipidemia mixta, y tienen una probabilidad del 14,0% de sufrir un episodio cardiovascular en los próximos diez años. Se deben promover políticas públicas saludables para reducir la presencia de hipertensión y diabetes mellitus.

  10. PENSIONES, PENSIONISTAS Y AFILIADOS

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    Alicia de las Heras Camino

    2012-07-01

    Full Text Available En este artículo se hace una breve exposición de los datos a disposición de los ciudadanos en referencia a las pensiones del Sistema de Seguridad Social, y de la información facilitada por la Tesorería General de la Seguridad Social en relación a cotización y afiliación, atendiendo a la estructura que ha estado presente en el actual Ministerio de Empleo y Seguridad Social durante el periodo de tiempo objeto de análisis. Se intenta matizar las diferencias entre los conceptos de pensión y pensionista así como la de afiliados y cotizantes, de tal manera que se puedan establecer relaciones con rigor científico, y que puedan ser consideradas en una futura Agencia Única de Seguridad Social que englobe todas las actividades relacionadas con la gestión de las pensiones y relaciones de afiliación, objeto de análisis de este estudio. In this article shows a brief summary of the data available to citizens in reference to pensions of The Spanish Social Security System, and information provided by the General Treasury of Social Security in relation to the members of the labor market who contribute in favor of the Social Security System, based on the structure that has been present in the current Ministry of Employment and Social Security during the period under review. It tries to refine the differences between the concepts of pension and pensioner and the members of the labor market and contributors, so as to establish relations with scientific rigor, and that would be considered at a future Social Security Agency encompassing all activities related to the management of pensions and affiliate relationships, analyzed in this study.

  11. Comparación de la regresión Poisson y la regresión de Cox: aplicación al estudio de la incapacidad permanente en una cohorte de 768.454 trabajadores afiliados a la Seguridad Social

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    Duran Jordà, Xavier,

    2010-01-01

    Este proyecto quiere cumplir dos objetivos: uno, de metodología estadística (objetivo 1) y el otro, de salud pública (objetivo 2). En concreto, los objetivos de este proyecto son los siguientes: 1) Comparar empíricamente el modelo Poisson y modelo de Cox en la estimación de las medidas epidemiológicas de interés (riesgos relativos de IP y sus intervalos de confianza) mediante los datos de una cohorte de trabajadores afiliados al régimen general de la Seguridad Social. 2) Describir la in...

  12. Las condiciones de acceso al mercado de seguros en el ordenamiento jurídico español

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    Vercher Moll, Francisco Javier

    2014-01-01

    Cuando el operador jurídico aborda el estudio del Derecho de los seguros, resulta necesario deslindar qué parte de este bloque normativo va a ser objeto de análisis. Como delineación, el Derecho de los seguros privados puede definirse como “el conjunto de normas jurídicas que específicamente disciplinan el estatuto del empresario del seguro privado, el de sus colaboradores y el del contrato de seguro”, Derecho en el que confluyen normas de origen público y privado, lo cual tiene su máximo ref...

  13. Family healthcare expenditure on children affiliated to the Medical Insurance for a New Generation Gasto en salud de los hogares con niños afiliados al Seguro Médico para una Nueva Generación

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    Evelyne Eugenia Rodríguez-Ortega; Elvira Mireya Pasillas-Torres

    2012-01-01

    OBJECTIVE: To analyze household health expenditures on children who are beneficiaries of the Medical Insurance for a New Generation (SMNG), program created in 2007 to cover healthcare costs of children without social security born after December 1st, 2006. MATERIALS AND METHODS: Using the SMNG National Survey, out-the-pocket and catastrophic spending on child health were calculated using several definitions. Results are presented by socioeconomic level, rural and urban areas and for Oportunid...

  14. Efecto sobre la rentabilidad que tiene para el afiliado la comisión cobrada por las administradoras de fondos de pensiones

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    Medina, Alex; Gallegos, Cecilia; Vivallo, Celso; Cea, Yasna; Alarcón, Alexi

    2013-01-01

    El sistema previsional en Chile es gestionado por entidades privadas, denominadas AFP, a las cuales cada trabajador debe cotizar un 10% de su renta en planes individuales de ahorro obligatorio para jubilación más una comisión variable a beneficio directo de la AFP. Por otro lado, el empleador cotiza un porcentaje de la remuneración del trabajador para financiar el seguro de invalidez y sobrevivencia por intermedio de la propia AFP. El afiliado puede libremente elegir el fondo en que integrará...

  15. La Siniestralidad en el Seguro de Automóviles en Andalucía frente al resto de España. Un Análisis a través de un Modelo Count Data

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    María del Carmen Melgar Hiraldo

    2005-11-01

    Full Text Available El presente trabajo analiza las principales variables que influyen en la siniestralidad en el seguro de automóviles. Al tiempo que se determinan tales variables, se pretende comprobar si existen diferencias significativas de comportamiento entre los asegurados de Andalucía y los del conjunto del resto de España. Éste es el objetivo principal de la investigación. Con este fin, se lleva a cabo un análisis econométrico que utiliza datos cedidos por una entidad aseguradora privada, sobre los que se aplica, para estimar el número de siniestros registrados, un modelo binomial negativo inflado de ceros. En nuestro estudio, las observaciones nulas de la variable endógena pueden tener distintas interpretaciones. Los modelos inflados de ceros, de la familia de los count data, permiten abordar esta cuestión. Palabras clave: siniestros, seguro de automóviles,

  16. Efecto sobre la rentabilidad que tiene para el afiliado la comisión cobrada por las administradoras de fondos de pensiones

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    Alex Medina Giacomozzi

    2013-06-01

    Full Text Available El sistema previsional en Chile es gestionado por entidades privadas, denominadas AFP, a las cuales cada trabajador debe cotizar un 10% de su renta en planes individuales de ahorro obligatorio para jubilación más una comisión variable a beneficio directo de la AFP. Por otro lado, el empleador cotiza un porcentaje de la remuneración del trabajador para financiar el seguro de invalidez y sobrevivencia por intermedio de la propia AFP. El afiliado puede libremente elegir el fondo en que integrará su cotización individual, según sea el nivel de riesgo a asumir y la rentabilidad esperada, entre los cinco fondos disponibles. Se espera que la AFP con la comisión cobrada por su gestión logre la mayor rentabilidad posible para sus afiliados, pero de acuerdo a los resultados obtenidos no se encuentra evidencia para afirmar irrefutablemente que las comisiones influyan en el comportamiento de las rentas de los distintos fondos.

  17. Producir software seguro argentino

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    Romaniz, Susana Cristina; Arce, Iván; Gaspoz, Ivana; Castellaro, Marta

    2014-01-01

    Una fuente principal de incidentes que ponen en riesgo la seguridad de la información y el funcionamiento esperado de los sistemas basados en tecnologías de la información y de las comunicaciones es la dificultad de producir software seguro. Concebir a la seguridad del software como un atributo emergente de su proceso de desarrollo es una visión que ha comenzado a lograr consenso entre los actores vinculados directamente con su producción. Disponer de las capacidades necesarias para atender a...

  18. Seguros Agricolas en Mexico

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    Armando Ramirez Roman; Montserrat Guillen I Estany; Daniel Sanchez-Moscona

    2010-01-01

    Las actividades económicas: agrícola, ganadera, pesquera y forestal, se consideran de alto riesgo por la mayoría de los agentes económicos. Las fuentes de riesgos que enfrentan los productores son: climatológicas, biológicas, de mercado, salud, trabajo y políticas. Estos riesgos tienen impactos directos en el patrimonio y la economía de los productores, así como también daños a la economía regional y nacional. El objetivo de este estudio fue analizar el mercado de seguros agrícolas en México ...

  19. Evaluación de un seguro agrario mediante opciones reales

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    Aguado Manzanares, Salomón; Garrido Colmenero, Alberto

    2008-01-01

    En este estudio se aplica la teoría de opciones reales para valorar, desde la óptica del productor, un seguro de rentas contra la caída de los precios de patata en origen. Este seguro fue ofrecido en cinco provincias españolas en 2003 y 2004. Se trata de un seguro índice que no toma como referencia el precio de venta del suscriptor del seguro, sino un índice de precios de patata en el que figuran diversos mercados nacionales e internacionales. Al estar totalmente desligado de los resultados d...

  20. Feeding practices and nutritional status of Mexican children affiliated to the Medical Insurance for a New Generation Prácticas de alimentación y estado de nutrición de los niños mexicanos afiliados al Seguro Médico para una Nueva Generación

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    Samuel Flores-Huerta; Miguel Klünder-Klünder; Onofre Muñoz-Hernández

    2012-01-01

    OBJECTIVE: To identify feeding practices and nutritional status in children affiliated to the Medical Insurance for a New Generation (SMNG). MATERIALS AND METHODS: An in-home survey addressed to mothers which included anthropometric measures of children; performed in March and April 2009 in Mexican States. RESULTS: The prevalence of any form of breastfeeding was (months) 6-11: 67.9%; 12-17: 43.6%; 18-23: 26.4%; >23: 16.7%; with higher figures in rural children. BF duration was eight months. C...

  1. Gasto por procedimiento en la especialidad de cardiología intervencionista en pacientes con enfermedad coronaria del Seguro Social, Seccional Valle del Cauca. Noviembre 2003-diciembre 2004

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    Hernán Rodríguez

    2006-12-01

    Full Text Available Introducción: La enfermedad coronaria afecta a una gran proporción de afiliados al Seguro Social (ISS Valle del Cauca. Aquí se describe el gasto en la especialidad de cardiología intervencionista que asumió esta empresa promotora de salud (EPS por cuenta de la enfermedad entre noviembre 2003-diciembre 2004. El gasto sobrepasa lo presupuestado por el ISS y este desequilibrio se produce bajo el régimen contributivo del actual sistema de seguridad social colombiano, que actúa en contra del ISS pues un alto número de sus afiliados son mayores de 45 años. La población compensada del ISS Valle del Cauca es de 423,440 personas de las cuales 43% superan los 45 años de edad, segmento donde se observa mayor riesgo de enfermedad coronaria.Metodología: El estudio es descriptivo. Se analizó la distribución de la población compensada por edad y sexo y el pago hecho por el ISS Valle del Cauca a las instituciones prestadoras de salud (IPS en la especialidad de cardiología intervensionista en el período señalado. La información se obtuvo de la facturación presentada por las IPS al Seguro Social y se cruzó con los registros individuales de procedimientos en salud (RIPS para identificar los pacientes afectados por enfermedad coronaria y clasificarlos teniendo en cuenta los Códigos Internacionales de Enfermad (CIE 10 así como el Manual de Actividades, Procedimientos e Intervenciones del Plan Obligatorio de Salud (MAPIPOS. Se practicaron 1,349 procedimientos a 1,103 pacientes del ISS con diagnóstico de enfermedad coronaria.Análisis y resultados: La población compensada del ISS Valle del Cauca representa 9.3% de la población vallecaucana (4’532,378 habitantes en el Departamento/423,400 compensados. De éstos 43% son mayores de 45 años, en riesgo de padecer enfermedad coronaria y requerir intervención médica. El ISS pagó a las IPS que prestan servicios de cardiología intervencionista la suma de $5’320,786.046 (más de cinco mil

  2. Los componentes de la orientación al mercado : un estudio exploratorio en el mercado del seguro en Europa y Estados Unidos

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    Lado, Nora

    1999-01-01

    A pesar de la importancia creciente del estudio de la orientación hacia el mercado de las empresas (OM) todavía son escasas las investigaciones que comparan resultados entre diferentes mercados, especialmente Europa y Estados Unidos. Esta carencia limita la comprensión de la OM como una estrategia competitiva válida en el ámbito de los mercados globales. La presente investigación tiene como objetivo explorar en qué medidad son extensibles al mercado americano resultados previos obtenidos en e...

  3. Dificultades en la enseñanza de prácticas de sexo seguro y en la adherencia al uso del preservativo

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    Guillermo Terán-Ángel

    2012-03-01

    Full Text Available Felici taciones a todo el equipo editorial por el lanzamiento de la Revista Avances en Biomedicina, publicación oficial del Instituto de Inmunología Clínica de la Universidad de los Andes. Nuestros mejores augurios para que este órgano de divulgación se consolide nacional e internacionalmente en la difusión de la producción científica de nuestra región. Les agradece mos profundamente la oportunidad que nos ofrecen al sector comunitario, permitiéndonos exponer nuestros puntos de vista que, en este caso en particular , se generan en el seno de las organizaciones que hacemos vida en la respuesta a la epidemia del VIH/sida.

  4. Elecciones primarias abiertas en el Partido Socialista Francés 2011: votan afiliados y simpatizantes.

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    Sanz Díaz, Benito (1949-)

    2014-01-01

    Elecciones primarias abiertas en el Partido Socialista Francés. 2011 1.- El modelo francés de 2011. Primarias a la francesa: votan afiliados y simpatizantes. 2.- Una experiencia inédita en Francia: los socialistas abren la elección de su candidato a la Presidencia de la Republica a los simpatizantes de la izquierda. Octubre de 2011. 3.- Los candidatos. 4.-Riesgos. Participación y voto adversario. 5.- ¿Quien podía votar en las primarias? Participar por un euro y adherirse a lo...

  5. Costos de la atención médica atribuibles al consumo de tabaco en el Instituto Mexicano del Seguro Social Health care costs attributable to tobacco consumption on a national level in the Mexican Social Security Institute

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    Luz Myriam Reynales-Shigematsu

    2006-01-01

    Full Text Available OBJETIVO: Cuantificar el efecto de las enfermedades atribuibles al consumo de tabaco, en términos epidemiológicos (morbilidad y económicos (costos de atención médica, en el Instituto Mexicano del Seguro Social (IMSS a escala nacional. MATERIAL Y MÉTODOS: Los costos de la atención médica se estimaron desde la perspectiva del proveedor y se empleó la metodología del costeo de enfermedad. A partir de una muestra de pacientes (n= 1 596 atendidos en las unidades médicas se estableció la frecuencia de utilización de servicios en los tres niveles de atención. Para cada enfermedad se consideraron costos promedio por paciente y costos totales de enfermedad, los cuales se mensuraron en pesos mexicanos de 2004. Se calculó la fracción atribuible al consumo de tabaco para cada enfermedad, misma que se usó para atribuir los costos al tabaco. RESULTADOS: Los costos totales anuales de atención médica nacional corresponden a 7 114 millones para el infarto agudo del miocardio, 3 424 millones para la enfermedad vascular cerebral, 1 469 millones para la enfermedad pulmonar obstructiva crónica y 102 millones para el cáncer pulmonar. El costo total anual para el IMSS por estas cuatro enfermedades asciende a 12 100 millones de pesos. Los costos atribuibles al consumo de tabaco corresponden a 7 100 millones de pesos, lo cual equivale a 4.3% del gasto de operación de la institución en el año 2004. CONCLUSIONES: Estos resultados confirman el elevado costo de la atención médica de las enfermedades atribuibles al consumo de tabaco en el IMSS y generan información de primera mano necesaria para impulsar las medidas de prevención en esa institución y reforzar las políticas de control del tabaquismo ya aplicadas en México.OBJECTIVE: To estimate the cost of medical care for the major diseases attributable to tobacco consumption at the IMSS. MATERIAL AND METODS: A cost of illness (COI analysis was carried out from the perspective of the health

  6. Ciclo de Vida de Desarrollo de Software Seguro

    OpenAIRE

    Robles Gómez, Ericka Jazmín

    2011-01-01

    Los estudios y las publicaciones encontrados hasta el momento hablan de la falta de gestión en las metodologías ágiles y la necesidad de al momento implementar gestión, esta sealo menos tediosa posible en cuanto a capacitación,implementación, documentación y mejora. También se habla de la necesidad de la automatización de cada una de las actividades dentro de las metodologías ágiles. En este documento se propone una solución a la gestión de desarrollar software seguro implementando SDL (Secur...

  7. Incidencia de los Robos y Hurtos en el Sistema de Seguros Agrarios Español.

    OpenAIRE

    C de Lozano; Tarquis Alfonso, Ana Maria; Gómez-Barona, J.A.

    2013-01-01

    Este trabajo se estudia la viabilidad técnica de incorporar al actual Sistema de Seguros Agrarios Español la cobertura de los robos y hurtos en el medio rural, calculando la prima pura base (Ppb) para todas las producciones agrícolas, ganaderas y medios de producción asegurables dentro del sistema de los Seguros Agrarios Combinados. Los resultados indican que los robos se producen con una mayor influencia sobre los elementos de los riegos por aspersión y de los invernaderos, y la Ppb en conse...

  8. Reflexiones sobre el anteproyecto de ley de contrato de seguro y la designación del beneficiario en el seguro sobre la vida = Reflections on the draft law on the insurance contract and beneficiary designation in on life insurance

    Directory of Open Access Journals (Sweden)

    María Angustias Díaz Gómez

    2012-07-01

    Full Text Available En este trabajo se analiza el Anteproyecto de Ley español de Contrato de Seguro, de 8 de abril de 2011, centrándonos en las novedades más significativas que contiene, en el ámbito de los Seguros de las personas, en el seguro sobre la vida y, de un modo más específico, respecto al beneficiario.This paper analyzes the Spanish Draft Law on Insurance Contracts (Anteproyecto de Ley de Contrato de Seguro, dated April 8, 2011, focusing on the most significant developments that contains, in the field of insurance of persons, in life insurance, and in a more specific regard to the insurance beneficiary

  9. La reticencia en el contrato de seguro de vida a la luz de los nuevos proyectos

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    María Lucía Acosta

    2015-07-01

    Full Text Available Teniendo en cuenta que un Proyecto de ley se encuentra a estudio del Parlamento, siendo su aprobación inminente –al menos en apariencia– nos proponemos analizar el instituto de la reticencia en el contrato de seguro de vida, un tema sumamente vigente, pero con la particularidad de abordarlo a la luz de la legislación actual y, al mismo tiempo, desde la perspectiva de la futura ley

  10. El espacio público seguro en los hábitat residenciales

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    Norma-Celina Carnevali-Lobo

    2013-07-01

    Full Text Available El presente trabajo responde al interés por el tema del espacio público seguro en los hábitats residenciales al considerarlo como elemento fun-damental en la conformación de los mismos. Partimos de un panorama general sobre el espacio y la ciudad, donde refrescamos el tema de la segregación que minimiza la coincidencia de los grupos sociales en los espacios urbanos. El presente análisis destaca el pensamiento sobre el hábitat residencial, ámbito condicionante de vida y lugar de soporte y significación. Complementamos con la revisión del tema del espacio pú-blico seguro, que es articulador del hábitat residencial y, en cuanto lugar de encuentro y relaciones, debe ser defendido por sus habitantes, punto final de disertación en la presente exploración.

  11. Qual o custo governamental do seguro agrícola?

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    Vitor Augusto Ozaki

    2013-03-01

    Full Text Available Para 2011, estavam previstos R$ 570 milhões ao Programa de Subvenção ao Prêmio do Seguro Rural (PSR, mas apenas R$ 253,4 milhões foram alocados ao Programa em função de contingenciamentos do governo. Apesar disso, foi possível segurar 5,6 milhões de hectares com uma importância segurada de R$ 7,3 bilhões. Mas qual deveria ser o volume de recursos direcionados ao PSR para que todo o crédito de custeio das lavouras pudesse ser coberto pelo mercado segurador? O estudo apresenta uma metodologia para calcular qual deve ser o valor orçamentário médio do PSR para cobrir cem por cento do custeio das lavouras. Para 2011, os resultados sugerem que o volume de recursos deveria ter sido quatro vezes maior do que o valor empenhado. Ademais, os resultados foram desagregados por estado e por culturas agrícolas. A importância do PSR para a massificação do seguro rural é indiscutível. Porém, além dos recursos do PSR estarem subdimensionados, outro problema ameaça a continuidade do Programa. Pelo terceiro ano consecutivo, o PSR tem sofrido graves contingenciamentos que têm impactado negativamente o mercado. Portanto, fica evidente a necessidade de maior esforço do governo federal em ampliar os recursos da subvenção e destiná-los única e integralmente ao PSR.

  12. ¿Necesita seguro médico? (Need Health Insurance?)

    Centers for Disease Control (CDC) Podcasts

    2013-12-24

    Suscríbase al seguro de salud de bajo precio con servicios de prevención gratuitos, desde el 1 de octubre del 2013 hasta el 31 de marzo del 2014.  Created: 12/24/2013 by Office of the Associate Director for Policy (OADP), Office of the Associate Director for Communication (OADC).   Date Released: 12/24/2013.

  13. Costos por ausentismo laboral atribuibles al consumo de tabaco en el Instituto Mexicano del Seguro Social y en México, 2006-2009 Absenteeism attributable to smoking in the Mexican Social Security Institute, 2006-2009

    Directory of Open Access Journals (Sweden)

    Carlos Manuel Guerrero-López

    2012-06-01

    Full Text Available OBJETIVO: Calcular los costos por ausentismo laboral atribuibles al tabaquismo en los asegurados del IMSS y población ocupada en México para el periodo 2006-2009. MATERIAL y MÉTODOS: Los costos se estimaron usando fracciones atribuibles para cáncer pulmonar, enfermedad cerebrovascular, enfermedad pulmonar obstructiva crónica e infarto agudo de miocardio, así como registros de salarios y días de incapacidad por esas enfermedades en asegurados del IMSS. Los parámetros encontrados se extrapolaron a la población ocupada. RESULTADOS: El IMSS erogó 143.9 millones de pesos a precios de 2009 atribuibles al tabaquismo como subsidio por incapacidad en el período 2006-2009. La productividad perdida atribuible al tabaquismo en asegurados del IMSS ascendió a 298.2 millones de pesos y a 437.8 millones de pesos en población ocupada del país en el mismo período. CONCLUSIONES: El tabaquismo impone costos importantes a las instituciones de seguridad en el país y causa pérdidas en la productividad. Por tanto, deben fortalecerse las políticas gubernamentales de control del tabaco incluidas en el Convenio Marco para el Control del Tabaco.OBJECTIVE: To calculate the absenteeism costs by lung cancer, cerebrovascular disease, chronic obstructive pulmonary disease and acute myocardial infarction attributable to smoking in the Mexican Social Security Institute (IMSS and the occupied population from 2006 to 2009. MATERIALS AND METHODS: Productivity loss data from selected illnesses were obtained from IMSS records. The smoking attributable fraction was used, and extrapolation to occupied population was conducted. RESULTS: IMSS paid $143.9 million pesos (2009 prices attributable to smoking between 2006 and 2009. The productivity loss was $298.2 million pesos and $437.8 million pesos in the occupied population, attributable to smoking. CONCLUSIONS: Tobacco smoking implies costs to the individual, families and society, which urge to strengthen policies

  14. Vínculo afectivo al nacimiento. Apego seguro

    OpenAIRE

    Sardón García, María Cristina

    2014-01-01

    El propósito de este trabajo es realizar una revisión bibliográfica de la literatura científica sobre los beneficios de establecer un buen vínculo afectivo desde el nacimiento y la necesidad de informar desde las consultas de enfermeras/os y de matronas, así como desde los hospitales. Desde Freud y el psicoanálisis (1905) se ha publicado gran información sobre la vinculación afectiva temprana y la importancia de su correcto desarrollo para la formación de la personalidad, y sin embargo, los b...

  15. El seguro obligatorio contra enfermedades e invalidez

    OpenAIRE

    Gómez Hurtado, Gustavo

    2011-01-01

    No es desconocido este importante tema médico-social entre los colegas federados. Algunas publicaciones de "Heraldo Médico", entre otras; el interesante artículo del doctor Fidel Torres León, publicado en este mismo órgano en agosto de 1940, nos han traído interesantes puntos de discusión al respecto; pero parece que no despertaron más que un entusiasmo momentáneo. Sin embargo, a las medidas de solidaridad social frente a los enemigos eternos del hombre: la Enfermedad, la Invalidez y la Muert...

  16. MANUAL DEL TRABAJO SEGURO EN ALTURAS

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    Bedoya-Marrugo Elias Alberto

    2015-01-01

    Full Text Available Desde el inicio de la historia, el ser humano siempre buscó la manera de sobrevivir mediante la elaboración de herramientas como piedras y lanzas para capturar a sus presas; algunas, de gran tamaño, le ocasionaban lesiones y bajas en sus grupos de caza. En virtud de ello, indagaba sobre cómo protegerse de todos los peligros a los que estaba expuesto para evitar lastimarse. Con el transcurrir del tiempo, las personas continuaron buscando las manera de cuidar su vida en todos los entornos, principalmente en el ámbito laboral. Con la Revolución Industrial se dio el despertar para encontrar alternativas que protegieran al trabajador dentro y fuera de una empresa.

  17. PENSIONES, PENSIONISTAS Y AFILIADOS

    OpenAIRE

    Alicia de las Heras Camino

    2012-01-01

    En este artículo se hace una breve exposición de los datos a disposición de los ciudadanos en referencia a las pensiones del Sistema de Seguridad Social, y de la información facilitada por la Tesorería General de la Seguridad Social en relación a cotización y afiliación, atendiendo a la estructura que ha estado presente en el actual Ministerio de Empleo y Seguridad Social durante el periodo de tiempo objeto de análisis. Se intenta matizar las diferencias entre los conceptos de pensión y pensi...

  18. El nacimiento de los seguros sociales en el contexto del reformismo y la respuesta del movimiento obrero

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    María Esther MARTÍNEZ QUINTEIRO

    2010-02-01

    Full Text Available El nacimiento en España de los seguros sociales, fue uno de los frutos de la eclosión, en el tránsito del siglo XIX al XX, de un movimiento de reforma social, cuyos resultados, en el plano jurídico, serán la aparición de un conjunto de leyes protectoras de los trabajadores, las unas de tipo laboral, las otras de previsión, constitutivas de las bases del Derecho del Trabajo.

  19. Dinamização de mediadores de seguros

    OpenAIRE

    Moreira, Nuno Alexandre Pais

    2012-01-01

    O seguro (quase) sempre existiu, mudando, apenas, as respectivas formas, objectos e objectivos, que se foram moldando e adaptando à evolução rápida e contínua da sociedade através dos tempos. Desde a antiguidade, quando as condições de vida eram ligadas à natureza e os acontecimentos futuros pareciam depender da sorte ou de circunstâncias alheias à vontade dos homens, as sociedades mais organizadas tentaram encontrar meios para diminuir os riscos envolvidos nas suas actividades...

  20. Hacia la Ingeniería de Software Seguro

    OpenAIRE

    Castellaro, Marta; Romaniz, Susana Cristina; Pessolani, Pablo Andrés

    2009-01-01

    La criticidad de los actuales sistemas de información en diferentes dominios de la sociedad determina que, si bien es importante asegurar que el software se desarrolla de acuerdo a las necesidades del usuario (requerimientos funcionales), también lo es garantizar que el mismo sea seguro. Hasta hace poco tiempo la Ingeniería de Software y la Ingeniería de Seguridad venían desarrollándose de forma independiente, limitando la posibilidad de que la seguridad sea considerada como parte del proceso...

  1. Seguros de salud públicos y privados: el caso chileno

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    Luis García Núñez

    1999-06-01

    Full Text Available En las últimas dos décadas Chile experimentó una profunda reforma en el área de los seguros de salud, estableciéndose una nueva configuración del sector con la coexistencia de un seguro público de salud junto a seguros privados. Este ensayo analiza un hecho estilizado del caso chileno: la presencia mayoritaria de personas de bajos ingresos y alto riesgo en el seguro público, observándose todo lo contrario en los seguros privados. Se desarrolla un modelo bisectorial basado en la teorfa estándar de seguros, el cual explica por qué razones las personas escogen entre el seguro público o algún seguro privado dadas las reglas de juego de los dos sub-sistemas.---In the last two decades, the Chilean health sector suffered a deep reform, establishing a new scheme with two sectors: the public health insurance and many private health insurance companies. This essay analyzes a especial outcome in the Chilean health insurance sector: the majority of the people within the public health insurance belong to a group with low incomes and high risk, noticing the opposite situation in the private health system. This paper develops a two-sector model based on the standard insurance theory, which explains the reasons why people choose between the public health insurance and a private health insurance, given the rules of both sub-systems.

  2. En los orígenes de la crisis de la seguridad social: el caso de los seguros sociales

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    Oscar Rodríguez Salazar

    2012-08-01

    Full Text Available Con la adopción de los seguros económicos confluyó un conjunto de circunstancias: En primer lugar, se hacía necesario estabilizar y consolidar el proyecto de seguridad social Colombiano; para lograr esta meta era prioritario dar una respuesta definitiva a las dificultades financieras por las que atravesaba el Instituto Colombiano de Seguros Sociales. Al disponer de apreciables recursos, el Déficit hospitalario comenzaría a resolverse, con lo cual la calidad en la prestación de los servicios de Enfermedad general y Maternidad mejoraría considerablemente, además de estar solucionando los problemas de salud. Los conflictos sociales originados en las demandas laborales por compensación pecuniaria a causa de Accidentes de Trabajo y Enfermedad Profesional (ATEP se salían del ámbito de la empresa y le correspondía al Gobierno responder por estas solicitudes; de manera indirecta se estaba contribuyendo a generar un clima de paz conveniente para lograr las metas de crecimiento económico.

  3. Las nuevas tendencias del derecho de seguros en las legislaciones más recientes de los países latinoamericanos

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    Andrés Ordóñez Ordóñez

    2014-07-01

    Full Text Available En los años recientes, varios países latinoamericanos han realizado importantes reformas a sus legislaciones relacionadas con la disciplina privada del contrato de seguro. Particularmente Chile y Perú procedieron a ello, en el primer caso, sustituyendo el capítulo correspondiente al contrato de seguro en su Código de Comercio de muy antigua vigencia, y en el segundo, expidiendo una ley específica sobre el tema. También países como México y Panamá, dentro del marco de sus normas de derecho público destinadas a regular la actividad financiera y de seguros, han expedido leyes nuevas relacionadas con la vigilancia y el control de la actividad aseguradora, que necesariamente se proyectan en mayor o menor medida sobre las relaciones particulares que surgen entre asegurados y aseguradores. El conocimiento de esas nuevas legislaciones es un elemento insustituible para la reforma que tarde o temprano deberá operarse sobre la nuestra que data ya de más de cuarenta años. Temas como la reticencia o inexactitud en la declaración del estado del riesgo, la agravación del riesgo, la imperatividad de las normas regulatorias del contrato, la identificación de las partes, la regulación de la oferta y de la etapa precontractual en el contrato de seguro, y muchas otras, son objeto de análisis y comentario en este artículo.

  4. Uso de los servicios de salud ambulatorios en la población peruana

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    Pedro Ypanaqué-Luyo

    2015-09-01

    Full Text Available Objetivos. Describir el perfil de necesidad y los patrones de utilización de los servicios de salud ambulatorios en la población afiliada y no afiliada a los seguros de salud en el Perú. Materiales y métodos. Estudio transversal descriptivo usando los datos de la Encuesta Nacional de Hogares 2011. Los datos se distribuyeron en cinco grupos: personas afiliadas al Seguro Social de Salud (EsSalud, Seguro Integral de Salud (SIS, Seguro de Salud de las Fuerzas Armadas y Policiales (FA-FP, los seguros privados de salud (SPS y personas no aseguradas. Resultados. Personas aseguradas y las afiliadas al EsSalud tuvieron más probabilidades de usar la consulta ambulatoria que las personas no aseguradas y los afiliados al SIS. Los afiliados al SIS acudieron principalmente a los centros y puestos de salud (47,1%, mientras que los afiliados a otros seguros utilizaron mayoritariamente los hospitales y clínicas. Los no asegurados usaron como primera opción las farmacias y boticas (46,7% con la finalidad de solucionar sus problemas de salud. En todos los seguros se realizó pago de bolsillo por la consulta, los medicamentos y los exámenes auxiliares. La percepción de "no gravedad" fue la principal razón de no búsqueda de atención en los asegurados (40,0% y no asegurados (41,4%; no obstante la falta de dinero mostró una diferencia importante entre asegurados (10,6% y no asegurados (16,3%. Conclusiones. El perfil de utilización de los servicios de salud ambulatoria en la población peruana expresa diferencias que se relacionan con la tenencia y el tipo de seguro

  5. Uso de los servicios de salud ambulatorios en la población peruana

    Directory of Open Access Journals (Sweden)

    Pedro Ypanaqué-Luyo

    2015-07-01

    Full Text Available Objetivos. Describir el perfil de necesidad y los patrones de utilización de los servicios de salud ambulatorios en la población afiliada y no afiliada a los seguros de salud en el Perú. Materiales y métodos. Estudio transversal descriptivo usando los datos de la Encuesta Nacional de Hogares 2011. Los datos se distribuyeron en cinco grupos: personas afiliadas al Seguro Social de Salud (EsSalud, Seguro Integral de Salud (SIS, Seguro de Salud de las Fuerzas Armadas y Policiales (FA-FP, los seguros privados de salud (SPS y personas no aseguradas. Resultados. Personas aseguradas y las afiliadas al EsSalud tuvieron más probabilidades de usar la consulta ambulatoria que las personas no aseguradas y los afiliados al SIS. Los afiliados al SIS acudieron principalmente a los centros y puestos de salud (47,1%, mientras que los afiliados a otros seguros utilizaron mayoritariamente los hospitales y clínicas. Los no asegurados usaron como primera opción las farmacias y boticas (46,7% con la finalidad de solucionar sus problemas de salud. En todos los seguros se realizó pago de bolsillo por la consulta, los medicamentos y los exámenes auxiliares. La percepción de "no gravedad" fue la principal razón de no búsqueda de atención en los asegurados (40,0% y no asegurados (41,4%; no obstante la falta de dinero mostró una diferencia importante entre asegurados (10,6% y no asegurados (16,3%. Conclusiones. El perfil de utilización de los servicios de salud ambulatoria en la población peruana expresa diferencias que se relacionan con la tenencia y el tipo de seguro

  6. El seguro escolar gratuito y el seguro materno infantil : análisis de su incidencia e impacto sobre el acceso a los servicios de salud y sobre la equidad en el acceso.

    OpenAIRE

    Miguel Jaramillo; Sandro Parodi

    2004-01-01

    A fines de la década pasada el gobierno peruano implementó dos seguros públicos para mejorar el acceso a los servicios de salud de las mujeres y de los niños más pobres de la población: el Seguro Escolar Gratuito (SEG) y el Seguro Materno Infantil (SMI). Según la teoría, dichos seguros deberían haber contribuido a disminuir las barreras de acceso a los servicios de salud, redistribuyendo recursos hacia los más pobres, e induciendo, por lo tanto, a una mejora en la equidad. El presente estudio...

  7. Recommendations to improve healthcare of neonates with respiratory insufficiency beneficiaries of Seguro Popular Recomendaciones para mejorar el cuidado de la salud de neonatos con insuficiencia respiratoria beneficiarios del Seguro Popular

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    Luis Jasso-Gutiérrez

    2012-01-01

    Full Text Available OBJECTIVE: To evaluate the structure and processes of care of neonatal intensive care units (NICU providing health care to neonates with respiratory insufficiency, and financed by Seguro Popular. MATERIALS AND METHODS: A cross-sectional design was used; 21 NICU were included. Information was collected from four sources: Seguro Popular database, self-applicable interviews to medical staff, structure and processes format, and reviews of clinical charts. Variables: structure, processes of care, drug supplies, training, and neonates' clinical conditions. RESULTS: The analysis of the database included 9 679 newborns. The respiratory disorders were transitory tachypnea, non-specific respiratory insufficiency, respiratory distress syndrome, (RDS perinatal asphyxia, and meconium aspiration syndrome. 90% of NICU'S directors considered that drug supply was good, whereas only 16% of neonatologist had this opinion. 58.5% of neonates with RDS had OBJETIVO: Evaluar infraestructura y procesos en las unidades de cuidado intensivo neonatal (NICU de tercer nivel que atienden neonatos con insuficiencia respiratoria financiados por el Seguro Popular. MATERIAL Y MÉTODOS: Formatos validados de: infraestructura; procesos de atención; surtimiento de medicamentos; opinión de médicos y revisión de expedientes clínicos. RESULTADOS: Taquipnea transitoria, insuficiencia respiratoria no especificada y síndrome de dificultad respiratoria (RDS, fueron los más frecuentes. Algunas NICU no tenían neonatólogos o residentes. El surtimiento de medicamentos fue bueno en opinión de 90% de los jefes y de 16% de médicos del staff. El 58.5 % de neonatos con RDS tuvieron <37 semanas de gestación. Recibieron surfactante 34.2% de neonatos con RDS y en 51% la dosis fue superior a la recomendada. La condición al arribar a la NICU fue grave en 89.6%. La mortalidad por RDS fue 14%. CONCLUSIONES: Se emiten recomendaciones de mejora en aspectos de infraestructura y de procesos.

  8. La determinación social de la discriminación en un grupo de pacientes afiliados a la asociación colombiana de bipolares diagnosticados con trastorno bipolar de origen genético

    OpenAIRE

    Hernández Tamayo, Félix Adrián

    2013-01-01

    Propósito: Indagar sobre la determinación social de la discriminación hacia pacientes diagnosticados con TBP de origen genético afiliados(as) a la Asociación Colombiana de Bipolares sede Bogotá y sus implicaciones bioéticas. Método: Se hizo un acercamiento a una realidad particular de un grupo humano que involucra múltiples dimensiones, entre las que se encuentran aspectos sociales, jurídicos y bioéticos. Se propuso un abordaje desde una perspectiva investigativa cualitativa, empleando div...

  9. Estudio cualitativo sobre la atención médica a los enfermos crónicos en el Seguro Popular A qualitative study on health care to chronically ill people in Popular Health Insurance program

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    Luis Eduardo Hernández-Ibarra

    2013-04-01

    Full Text Available OBJETIVO: Examinar la atención médica que brinda el Seguro Popular a los enfermos crónicos en México, desde la perspectiva de quienes padecen las enfermedades y también de los profesionales de la salud. MATERIAL Y MÉTODOS: Se llevó a cabo un estudio cualitativo en la ciudad de Guadalajara, Jalisco, México, donde se entrevistó a 40 enfermos crónicos y a 14 profesionales sanitarios de primer nivel; posteriormente, se realizó un análisis crítico del discurso. RESULTADOS: El Seguro Popular ha significado ganancias y pérdidas para los participantes. Los enfermos lo valoran positivamente al considerarlo un regalo, mas no un derecho social. Sus carencias económicas y de recursos les impiden acceder a la atención médica, obtener medicamentos y realizarse estudios de laboratorio, también generándose relaciones conflictivas con los profesionales. CONCLUSIÓN: Los propósitos del Seguro Popular distan de lograrse en la atención a los enfermos crónicos. El Seguro tendría que ser objeto de análisis, y otorgar prioridad a la perspectiva de los enfermos y del personal de salud operativo.OBJECTIVE: To examine health care provided to chronically ill people in the Popular Health Insurance (Seguro Popular from the perspective of patients and health professionals. MATERIALS AND METHODS: A qualitative study was carried out in Guadalajara, Mexico. 40 chronically ill people, and 14 health professionals of primary health centers participated in the study. Information was gathered using semi-structured interviews; critical discourse analysis was carried out. RESULTS: Seguro Popular has meant gains and losses to participants. Cronically ill people value it positively since it is perceived as a gift, not a social right. Some obstacles impede participants accessing health care, obtaining medications and analysis. Conflictive relations also cause tensions between patients and health professionals. CONCLUSION: The initial goals of Seguro Popular are

  10. O mediador de seguros e a fidelização

    OpenAIRE

    Correia, Vítor Manuel

    2015-01-01

    A temática do presente trabalho centra-se na fidelização do cliente ao mediador de seguros e análise da respetiva satisfação. Recorreu-se à revisão de literatura com intuito de ajudar a compreender melhor os conceitos com relevo para o estudo, como a satisfação e a fidelização. Realizou-se um estudo junto de clientes, de uma companhia de seguros do distrito de Bragança, objetivando avaliar o grau de satisfação e de fidelização bem como a exposição dos mediadores de seguros a ameaça de novo...

  11. El seguro de enfermedad en España: un análisis estocástico

    Directory of Open Access Journals (Sweden)

    Melgar Hiraldo, María del Carmen

    2001-01-01

    Full Text Available Este trabajo se centra en el estudio del seguro privado de enfermedad en España durante el periodo 1981-1997, dada la importancia de este sector en la actividad aseguradora de nuestro país. Mostramos en primer lugar las principales características del mercado del seguro médico, destacando la importancia de las cifras del grado de equilibrio técnico en este ramo, que se mueven por debajo de las correspondientes a la actividad aseguradora en su conjunto. El mayor componente del grado de equilibrio técnico es la relación entre el importe de siniestralidad y la recaudación de primas, que se mantiene a lo largo de todo el periodo objeto de estudio en torno al 80-85%, lo que nos lleva a prever una gran interdependencia entre las variables consideradas. Este hecho se ve ratificado por un análisis estocástico en el que, a través de un modelo de regresión lineal uniecuacional, estudiamos la dependencia del importe de la siniestralidad respecto a diversas variables de entre las más relevantes del sector, junto con el P.I.B.; siguiendo un proceso iterativo, donde se elimina en cada paso aquella variable que resulta menos significativa, llegamos a expresar el importe de la siniestralidad únicamente en función de la recaudación de primas y del P.I.B., pudiendo incluso prescindirse de esta última variable si se desea una mayor simplicidad de la expresión final del modelo.

  12. Análise Estatística e Atuarial do Mercado de Seguro DPVAT

    OpenAIRE

    Filipe Coelho de Lima Duarte; Luiz Carlos Santos Júnior

    2015-01-01

    O seguro analisado pelo presente estudo, o DPVAT, foi criado em 1974 para proteger vítimas de Danos Pessoais Causados por Veículos Automotores de Via Terrestre. Objetivou-se nesse trabalho analisar o mercado brasileiro do seguro DPVAT sob a ótica da Modelagem Estatística e Atuarial, com base nos dados mensais de janeiro de 2002 a dezembro de 2014. Para isso, foram utilizados índices de análise de mercado securitário, tais quais coeficientes de penetração e densidade; um modelo de série tempor...

  13. Suministro de información y seguros de confiabilidad en el mercado SPOT de generación de electricidad colombiano.

    Directory of Open Access Journals (Sweden)

    David Fernando Tobon O.

    2010-05-01

    Full Text Available Este artículo tiene como objetivo presentar algunos mecanismos de mercado que pueden inducir a mejorar la confiabilidad en el mercado de generación de electricidad spot colombiano; estos son:1 la provisión de información adicional al precio unitario spot, en un mercado que por su naturaleza es aleatorio, y 2 seguros de confiabilidad, al reconocerse que las demandas son altamente inflexibles. También se desarrolla una aplicación para mostrar cómo operarían en la práctica estos mecanismos y se determinan las restricciones que se deben corregir para que sean operativos. Este programa de seguros garantiza una confiabilidad eficiente, provee información importante para los agentes del mercado y reglas de asignación que minimizan los costos económicos en caso de fallas en la capacidad de generación de electricidad, que podrían ser aplicados a mercados de generación de electricidad como el colombiano, donde se han tenido recurrentes crisis de abastecimiento y se ha pensado profundizar en las reformas de este mercado.

  14. Cáncer: Ayuda para los que no tienen seguro (Cancer - Help for the Uninsured)

    Centers for Disease Control (CDC) Podcasts

    2009-05-26

    Este podcast habla de los recursos para las personas con cáncer que no tienen seguro médico o que tienen una cobertura insuficiente.  Created: 5/26/2009 by National Center for Health Marketing.   Date Released: 8/2/2011.

  15. El seguro contra la responsabilidad civil del médico

    Directory of Open Access Journals (Sweden)

    Julián Solano Porras

    1999-09-01

    Full Text Available El auge del interés por la mala práctica médica comienza en Costa Rica 1984 con un caso de una amputación de un miembro en virtud de un error médico con condenatoria de los médicos implicados. Desde entonces son muchos los médicos que han sido condenados penal y civilmente por mala práctica médica. Se han identificado algunos factores determinantes en estas denuncias: el avance vertiginoso de una medicina que lleva al paciente a no aceptar el fracaso o complicaciones del acto médico, la desaparición de la relación médico paciente, la aparición de médicos incompetentes y abogados inescrupulosos, entre otros. La existencia de los seguros médicos en Costa Rica Rica es bastante reciente habiendo en este momento 25 médicos acogidos al sistema en forma colectiva o individual que " ampara la responsabilidad civil del asegurado que se derive de impericia, negligencia, errores u omisiones profesionales involuntarias cometidas en las prestaciones de los servicios propios de la profesión del asegurado, como médico, durante la vigencia de la póliza".The increase of interest in malpractice in Costa Rica starts around the year 1984 with a case of an amputation of a member in virtue as a fatal mistake, and it ended with the conviction of the doctors involved in the case. Since then there have been a lot of penal and civil convictions of doctors for a malpractice. It has been identify some crucial elements in this kind of law suits: the whirling advance of a medicine that brings the patient to a non acceptance of failure or complications during the medical procedure, the disappering of the doctor-patient relationship, the appereance of incompetent doctors, and by its matter lawyers. The existence of medical insurances in Costa Rica is recent, having at this moment 25 doctors refuge in their system in a colective and individual way, that "protects the civil resposability of the insurance drifted by inexperience, negligence, mistakes or

  16. Sistema privado de seguro-saúde: lições do caso americano

    Directory of Open Access Journals (Sweden)

    Mônica Viegas Andrade

    2000-01-01

    Full Text Available O mercado de serviços de atenção à saúde apresenta particularidades não observadas em outros mercados de bens, traduzidas nas relações contratuais estabelecidas entre os agentes deste mercado: relação paciente-provedor e relação seguradora-provedor. Na relação seguradora-provedor existe um problema de risco moral que cria incentivos à sobreutilização de serviços médicos. O objetivo deste trabalho é sistematizar as principais características institucionais do sistema de saúde americano, enfatizando as reformas ocorridas na década de 1970 e os problemas identificados em regulamentar o setor privado de serviços médicos e hospitalares. Estes problemas estão relacionados, em sua grande maioria, à regulamentação dos contratos permitidos entre as seguradoras, os provedores de serviços médicos e hospitalares e os segurados. A principal conclusão deste trabalho é mostrar que a flexibilização dos contratos entre provedores e seguradora tem efeito significativo na redução dos custos do seguro-saúde, resultando sobretudo em maior eficiência dos serviços ofertados. Os novos desenhos de contratos estabelecidos permitem a divisão do risco entre os provedores e seguradora, além de centralizar a decisão de encaminhamentos médicos a serem realizados configurando utilização mais racional destes serviços. A flexibilização dos contratos não significou, no entanto, eliminação da regulação por parte do Estado do setor de seguro-saúde privado, sendo fundamental para garantir a sustentabilidade financeira dos seguros.The aim of this paper is to organize the main institutional characteristics of the American Health System, emphasizing the reforms that occurred during the age of seventy and the difficulties to regulate the private sector of medical and hospital services. The most part of these problems are related to the contract regulation between the providers of medical and hospital service and the patients. The

  17. La modalidad de seguro como mecanismo de asunción y transferencia de riesgo en el Sistema de Salud

    OpenAIRE

    Mallo, Paulino E.; Artola, María Antonia; García, Mónica V.; Galante, Marcelo Javier; Martínez, Diego; Pascual, Mariano Enrique

    2000-01-01

    El objetivo del presente trabajo es proponer una aplicación de rentas aleatorias a un seguro de salud con el fin de analizar un caso en el que, los profesionales en Ciencias Económicas, tienen incumbencia. Se trata de brindar asesoramiento a empresarios que deban contratar un seguro que cubra los costos originados por ausencias por enfermedad de su personal. Para comenzar, analizaremos algunos aspectos generales sobre el seguro de enfermedad y luego determinaremos la mecánica de cálculo del v...

  18. Una estimación del número de siniestros en el seguro del automóvil: Comparación entre distintos modelos.

    Directory of Open Access Journals (Sweden)

    Guerrero Casas, Flor María

    2004-01-01

    Full Text Available El seguro del automóvil constituye uno de los principales ramos del conjunto de la actividad aseguradora; en concreto, en el año 2003 representa en España el 25,65% del total de ésta, siendo así el más importante dentro del seguro de no vida. Una de las preocupaciones básicas de este sector es la estimación del número de siniestros que se producen. En el desarrollo de esta tarea, se emplean modelos econométricos tipo count data; en este sentido, suelen utilizarse habitualmente el modelo de Poisson o el binomial negativo. Sin embargo, modelos como los inflados de ceros pueden resultar más adecuados al tener en cuenta determinados aspectos relativos a los valores nulos de la variable endógena, que los otros no consideran. El objetivo fundamental del presente trabajo es mostrar los factores más significativos en la ocurrencia de siniestros declarados por los conductores. A partir de los datos suministrados por cierta entidad aseguradora privada, se lleva a cabo la estimación del número de siniestros a través de cada uno de los modelos anteriormente mencionados y se comparan los resultados obtenidos.

  19. Tabaquismo en profesionales de la salud del Instituto Mexicano del Seguro Social, Morelos

    Directory of Open Access Journals (Sweden)

    Salmerón-Castro Jorge

    2002-01-01

    Full Text Available Objetivo. Determinar la prevalencia de hábito tabáquico por categoría laboral en trabajadores de la salud del Instituto Mexicano del Seguro Social (IMSS, en el estado de Morelos, México. Material y métodos. Se realizó un estudio transversal en 3 133 empleados de los servicios médicos de las 23 unidades médicas con que cuenta la delegación Morelos del IMSS, durante el periodo de octubre de 1998 a marzo de 2000. Mediante un cuestionario autoaplicable se recolectó información sobre patrones de consumo de tabaco en distintas etapas de la vida, así como algunas características demográficas y categoría laboral. Se estimaron prevalencias e intervalos de confianza al 95% por grupos de edad y sexo para distintas categorías laborales. Resultados. De los 3 133 empleados participantes, 53.4% (IC 95% 50.8-56.8 de los hombres y 27.4% (IC 95% 25.4-29.3 de las mujeres contaban con historia de tabaquismo en algún momento de la vida. La prevalencia de tabaquismo activo fue de 28.3 % (IC 95% 25.6-31.0 y 14.4% (IC 95% 12.8-15.9 en hombres y mujeres, respectivamente. Entre los hombres, los médicos presentan una prevalencia de tabaquismo activo menor (20.9% que la observada entre trabajadores de otras áreas: personal administrativo (33.0% y personal técnico de distintas categorías (26.6%. Las mujeres muestran en general una prevalencia menor que los hombres en todas las categorías, y las enfermeras presentan una prevalencia discretamente menor (12.5% que las médicas (16.0%. Conclusiones. El patrón del consumo de tabaco observado en profesionales de la salud del IMSS Morelos muestra una prevalencia menor a la observada en población general. Sin embargo, es necesario continuar con programas para desalentar el consumo del tabaco entre profesionales de la salud, y tratar de hacerlos concientes acerca de la influencia positiva que pueden y deben ejercer en la sociedad para impulsar programas integrados contra el consumo del tabaco y la adicción a

  20. “Programa Seguro Médico Siglo xxi”: una propuesta de política pública para fortalecer el derecho a la salud de la primera infancia en México

    Directory of Open Access Journals (Sweden)

    José A. Caballero J.

    2014-12-01

    Full Text Available El presente artículo analiza los fundamentos jurídicos y la operación del “Programa Seguro Médico Siglo xxi”, con el objeto de elaborar una propuesta de política pública que permita fortalecer su integración en el sistema jurídico mexicano. Actualmente su funcionamiento está sujeto a disposiciones regulatorias de carácter anual, como son el Presupuesto de Egresos de la Federación y las Reglas de Operación de los programas que se derivan del mismo. Lo anterior rivaliza con la trascendencia que este Programa supone para dotar de efectividad al derecho constitucional a la protección de la salud y, de manera específica, a los niños en sus primeras etapas de vida. En ese sentido, en este trabajo se establecen las líneas generales que permitan consolidar el funcionamiento del “Seguro Médico Siglo xxi” dentro del Sistema de Protección Social en Salud (también llamado Seguro Popular, a través de su incorporación en la Ley General de Salud.

  1. Elementos del presupuesto del Seguro Popular en Chiapas desde el enfoque de género

    Directory of Open Access Journals (Sweden)

    Magdalena del Carmen Morales Domínguez

    2011-01-01

    Full Text Available El objetivo de este trabajo es analizar elementos del presupuesto del Seguro Popular en Chiapas desde el enfoque de género. La metodología utilizada fue el método de Trazalíneas o Tracer para establecer rutas de seguimiento. Los resultados muestran que no existe un presupuesto constante para los programas de salud relacionados con género y que es un programa que responsabiliza a las mujeres de la afiliación por cada familia. En conclusión, el Seguro Popular trabaja bajo una lógica mercantilista que choca con el contexto pobre de la región, haciendo un uso enajenado del enfoque de género, sin tener una estrategia clara de cómo abordar la salud desde dicho enfoque.

  2. Investigación sobre tratamientos de aguas seguros en emergencias

    OpenAIRE

    Ruiz García, José Luis

    2016-01-01

    Esta Tesis Doctoral tiene como principal objetivo el obtener una cadena de tratamientos seguros de aguas seriados que nos permita asegurar la calidad de las aguas para consumo humano en caso de emergencias, de tal forma que se minimicen los efectos de acciones hostiles, como sabotajes o actos terroristas, desastres naturales, etc y buscar soluciones adecuadas para garantizar en este caso la salud. Las plantas de tratamientos de aguas existentes comercialmente no aseguran dicha ...

  3. TRABAJO SEGURO EN PLATAFORMAS AEREAS DE TRABAJO - TIPO ANDAMIOS

    OpenAIRE

    Ruiz-Vargas, Jaime Gabriel

    2012-01-01

    La Industria de la Construcción uno de los sectores que tiene una mayor tasa de incidentes en Colombia, Estados Unidos de América y España. Los 3 gobiernos han venido realizando grandes esfuerzos para disminuir los incidentes con perdidas por la exposición al peligro por trabajo en alturas, mediante la creación de una legislación laboral y en salud ocupacional y programas de capacitación y entrenamiento a trabajadores, pero los Incidentes con lesiones y muertes por Trabajo en Altura, la princ...

  4. Tabaquismo en profesionales de la salud del Instituto Mexicano del Seguro Social, Morelos

    Directory of Open Access Journals (Sweden)

    Jorge Salmerón-Castro

    2002-01-01

    Full Text Available Objetivo. Determinar la prevalencia de hábito tabáquico por categoría laboral en trabajadores de la salud del Instituto Mexicano del Seguro Social (IMSS, en el estado de Morelos, México. Material y métodos. Se realizó un estudio transversal en 3 133 empleados de los servicios médicos de las 23 unidades médicas con que cuenta la delegación Morelos del IMSS, durante el periodo de octubre de 1998 a marzo de 2000. Mediante un cuestionario autoaplicable se recolectó información sobre patrones de consumo de tabaco en distintas etapas de la vida, así como algunas características demográficas y categoría laboral. Se estimaron prevalencias e intervalos de confianza al 95% por grupos de edad y sexo para distintas categorías laborales. Resultados. De los 3 133 empleados participantes, 53.4% (IC 95% 50.8-56.8 de los hombres y 27.4% (IC 95% 25.4-29.3 de las mujeres contaban con historia de tabaquismo en algún momento de la vida. La prevalencia de tabaquismo activo fue de 28.3 % (IC 95% 25.6-31.0 y 14.4% (IC 95% 12.8-15.9 en hombres y mujeres, respectivamente. Entre los hombres, los médicos presentan una prevalencia de tabaquismo activo menor (20.9% que la observada entre trabajadores de otras áreas: personal administrativo (33.0% y personal técnico de distintas categorías (26.6%. Las mujeres muestran en general una prevalencia menor que los hombres en todas las categorías, y las enfermeras presentan una prevalencia discretamente menor (12.5% que las médicas (16.0%. Conclusiones. El patrón del consumo de tabaco observado en profesionales de la salud del IMSS Morelos muestra una prevalencia menor a la observada en población general. Sin embargo, es necesario continuar con programas para desalentar el consumo del tabaco entre profesionales de la salud, y tratar de hacerlos concientes acerca de la influencia positiva que pueden y deben ejercer en la sociedad para impulsar programas integrados contra el consumo del tabaco y la adicción a

  5. Sede central de una compañía de seguros Oberursel/Ts. - Alemania Federal

    Directory of Open Access Journals (Sweden)

    Hentrich, Helmut

    1977-02-01

    Full Text Available This building is designed to house the control Centre of an Insurance Company, formed by three chartered companies, in the town of Oberursel, near Frankfurt. The work includes seven floors and two basements, in the shape of a swastika, and is completed with a rectangular annex, with two storeys, intended for the restaurant, cafeteria and an all-purpose room. The main building provides offices of a landscape type, with a total of 1,500 jobs, to be extended to 2,500. The structure is in reinforced concrete, with a modulation between support axes of 10.50 X 10.50 m. The stability of the unit is achieved through a main bracing nucleus, which also acts as a vertical communication axis. The frontage is of curtain wall, with steel framework corridor on all the floors, aluminium carpentry and insulating glazing. These corridors lead to two fire scapes, backing on to the main building on opposite sides. Suitable decoration, together with the specially chosen furniture and the varied series of installations, both generic and specific, for this type of centers, contribute towards achieving the suitable working atmosphere. Furthermore, a group of social, recreative and sports installations, facilitate personal contacts among employees.Este edificio se destina a albergar el Centro de control de una compañía de seguros, integrada por tres sociedades anónimas, en la ciudad de Oberursel, cerca de Frankfurt. La obra se desarrolló en seis plantas y dos sótanos con forma de cruz gamada, y se completa con un anexo rectangular, de dos plantas, dedicado a restaurante, cafetería y sala polivalente. El edificio principal distribuye oficinas de tipo paisajístico con un total de 1.500 puestos de trabajo, ampliables hasta 2.500. La estructura es de hormigón armado, con una modulación entre ejes de soportes de 10,50 x 10,50 m. La estabilidad del conjunto se consigue mediante un núcleo central de arriostramiento, que sirve, además, de eje de

  6. Selección de medicamentos y uso seguro de medicamentos

    OpenAIRE

    Molina López, Teresa; Fernández Oropesa, Carlos; Moreno Campoy, Eva

    2008-01-01

    Los aspectos relacionados con el uso seguro de medicamentos constituyen buena parte de los objetivos fijados por las estrategias sobre seguridad clínica puestas en marcha desde distintos organismos, recogiendo así el interés y preocupación de profesionales, evaluadores, gestores y ciudadanos. El proceso de selección de medicamentos, basado en los principios de uso racional de la Organización Mundial de la Salud, puede considerarse un proceso clave para la mejora de la seguridad clínica en rel...

  7. Los riesgos de Internet. Consejos para su uso seguro. Habilidades necesarias para utilizar Internet

    OpenAIRE

    Marquès Graells, Pere

    2005-01-01

    Internet ofrece infinitas posibilidades, pero también conlleva riesgos para ciertos perfiles de personas. Estos riesgos están relacionados con la información, la comunicación interpersonal, las actividades económicas, el funcionamiento de Internet y las adiciones. Ante estos peligros potenciales, es conveniente adoptar medidas preventivas (decálogo de los derechos de la infancia en Internet, programas de sensibilización para promover el uso seguro y responsable de Internet, etc.) y además, pa...

  8. Paraguay: Mercado de seguros y el desarrollo de un mercado de capitales a largo plazo

    OpenAIRE

    Lorraine Ocampos; Emilio Ortíz Trepowski; Bernardo Navarro A.

    1998-01-01

    En el Paraguay el mercado de seguros está todavía insuficientemente desarrollado, pese a la proliferación de compañías en especial a partir de la década del 90, coincidiendo con la desregulación del sistema financiero. Este mercado ha estado hasta febrero de 1996 regido por una Ley de 1947, que no contribuyó a la modernización del sector, por carecer de controles más dinámicos de solvencia y por impedir la libre determinación de tarifas. Adicionalmente, la normativa de inversión era inadecuad...

  9. Diseño del Sistema Integral de Medicion de Gestion (SIMEG de la IPS del Instituto de Seguros Sociales

    Directory of Open Access Journals (Sweden)

    Paula Bernal Gelvis

    2000-12-01

    Full Text Available Este articulo presenta los resultados obtenidos en la monografia "Diserio del Sistema Integral de Medici6n de la Gestión (SIMEG en la Institución prestadora de servicios (IPS del Instituto de Seguros Sociales (ISS"; en la que -utilizando la inferencia deductiva-, se plantea el SIMEG como una herramienta administrativa para la evaluación y el monitoreo de la gestión. Para el diseño de esta herramienta, en primera instancia se realiza un acercamiento teórico a la metodología recurriendo a diversas fuentes bibliográficas (Iibros, artículos, publicaciones en Internet, panelistas, seminarios, etc. para determinar el estado del arte del Balanced Scorecard y las metodologías analoqas tales como el SIMEG; y en segundo lugar, se construye un marco conceptual sobre el objeto de estudio, la Institución prestadora de servicios (IPS del ISS, a través del establecimiento del marco legal, el análisis situacional y la recolección de información interna (administrativa, estratégica. presupuestal, financiera, contable, estadistica, etc.. De esta manera se logra una aproximaci6n te6rica al Sistema integral de medición de la gestión, SIMEG, que proporcione las herramientas necesarias para comprender la magnitud y el alcance de la metodología que se pretende implementar. Finalmente se describe paso a paso el proceso metodológico utilizado en su implantación en la IPS del ISS y, por ultimo, se plantean sugerencias con el objeto de asegurar el éxito en dicho proceso.

  10. Seguro Nuclear

    International Nuclear Information System (INIS)

    A description of the constitutive elements of insurance and its features in the field of law, and special legislation about the matter are given. The relationship between the liability of the nuclear power plant operator and the international conventions about civil liability on nuclear damage is discussed. Some considerations on damage reparing in the United States, Germany, France and Spain are presented. (A.L.S.L.)

  11. Prevalencia de consumo riesgoso y dañino de alcohol en derechohabientes del Instituto Mexicano del Seguro Social The prevalence of hazardous and harmful use of alcohol among the insured population of Instituto Mexicano del Seguro Social

    Directory of Open Access Journals (Sweden)

    Juana Inés de la Cruz Morales-García

    2002-04-01

    Full Text Available Objetivo. Medir la prevalencia de consumo riesgoso y dañino de alcohol en la población amparada por el Instituto Mexicano del Seguro Social (IMSS. Material y métodos. En un estudio transversal se entrevistaron 45 117 derechohabientes del IMSS, en las 36 delegaciones del país. Se aplicó un cuestionario estructurado y autoaplicable a cada sujeto usando el instrumento de tamizaje AUDIT (Alcohol Use Disorder Identification Test, el cual consta de 10 preguntas. Las tres primeras se relacionan con la cantidad y frecuencia del consumo de alcohol, las tres siguientes evalúan la dependencia y las cuatro últimas se refieren a problemas causados por el alcohol. Cada pregunta consta de tres a cinco opciones, a las que se les asignan valores progresivos de cero a cuatro. Se estimó la prevalencia de consumo, con intervalos de confianza al 95% (IC 95%. Resultados. La prevalencia de consumo problema de alcohol (riesgoso y dañino fue de 12.8% (IC 95% 12.5-13.2. El consumo fue mayor en hombres (22.2%; IC 95% 21.7-22.8 que en mujeres (3.4%; IC 95% 3.1-3.6. En los hombres se observó un efecto de edad, mientras que en las mujeres el consumo por edad fue más homogéneo. En ambos grupos el consumo fue más importante en la edad productiva. Conclusiones. La prevalencia de consumo de alcohol que constituye un problema para la salud, es elevada en la población derechohabiente del IMSS. Es necesario desarrollar políticas y programas de salud específicos, para disminuir este grave problema.Objective. To estimate the prevalence of hazardous and harmful alcohol consumption among the insured population of Instituto Mexicano del Seguro Social (Mexican Social Security Institute, IMSS. Material and Methods. A cross-sectional survey was conducted in 45,117 insured subjects from Mexico's 36 political districts; study subjects were interviewed using a structured and self-applied questionnaire on alcohol consumption, using the ten-item screening instrument AUDIT

  12. [Historical notes about scientific research in the Instituto Mexicano del Seguro Social.

    Science.gov (United States)

    Zárate, Arturo; Basurto-Acevedo, Lourdes

    2013-01-01

    Medical research in the Instituto Mexicano del Seguro Social has been considered one of the most important in this country for quality and quantity. Thanks to the work and leadership of Benito Coquet, who initiated the building of the National Medical Center in 1961, and the work of two pillars of research, Luis Castelazo and Bernardo Sepúlveda, the Institute successfully improved scientific research. In the years that followed, the Institute fostered the professionalization of research, the creation of research units in different areas of science, the incorporation of consolidated groups of researchers, the relationship with other institutions, the incorporation to the Sistema Nacional de Investigadores, the editing of a journal to expose outside the work done within the Institute, and the formation of a trust to raise funds for financing. Thanks to all that, institutional research strengthened in all lines, and it was placed first, at certain times, at the national level. PMID:24290017

  13. Acceso remoto seguro a cuentas de usuario utilizando plataformas de virtualización

    Directory of Open Access Journals (Sweden)

    Walter Fuertes, Maritza Enríquez y Diego Veloz

    2011-05-01

    Full Text Available En  las  universidades  persiste  el  problema  de  la subutilización de recursos tecnológicos; sin embargo, sesigue  incurriendo en gastos por adquisición de servidores,hardware  y  software. Frente  a  este  escenario,  en  laindustria se han venido desarrollando las tecnologías devirtualización, que ahorran energía y costos de inversiónde hardware. En  consecuencia,  el  artículo propone  elacceso remoto seguro a cuentas de usuario en un servidoruniversitario  virtualizado;  para  llevarlo  a  cabo  sediseñaron  e  implementaron  varias  topologías  deexperimentación, utilizando Virtual Box 3.1.3 y VMwareServer 2.0.2,  y  se  evaluaron diversas  tecnologías  deconexiones remotas seguras, bajo  idénticas condicionesy parámetros de  comprobación. En  cada  topología  seevaluó el rendimiento del servidor, el performance y  laseguridad  de  la  red  en  producción. Los  resultadosmuestran  la  funcionalidad  de  este  proyecto  deinvestigación  que  facilita  el  acceso  remoto  seguro deusuarios a los recursos informáticos universitarios.

  14. Análisis comparativo de la siniestralidad en el seguro de automóviles según el grado de cobertura

    Directory of Open Access Journals (Sweden)

    Ordaz Sanz, José Antonio

    2007-01-01

    Full Text Available En el seguro de automóviles, las diferencias en la siniestralidad según las garantías de que disfruta el asegurado puede ser un indicativo de la existencia de información asimétrica. A nivel empírico parece evidenciarse que, a mayor grado de cobertura, mayor es la probabilidad de sufrir algún siniestro. Las razones de este hecho pueden residir tanto en problemas de selección adversa como de riesgo moral. Pero además de ello, en la ocurrencia de siniestros pueden intervenir otra serie de características, relativas a la póliza, al vehículo, o incluso al propio asegurado. En este trabajo se pretende determinar cuáles son estos factores, para cada grado de cobertura considerado, así como realizar un análisis comparativo entre los mismos para comprobar si coinciden o si, por el contrario, cada tipo de cobertura muestra sus propios factores o características determinantes de la siniestralidad.Para llevar a cabo este estudio, se utilizará información procedente de una entidad aseguradora privada española junto con un modelo de elección discreta binaria de tipo probit, donde la variable a explicar recogerá la ocurrencia o no de siniestros.

  15. Definición y caracterización de un modelo comercial para la asesoría y venta de seguros de personas y familias para la empresa líder del sector en la ciudad de Medellín

    OpenAIRE

    Peluffo Hoyos, Jéssica

    2009-01-01

    Los mercados actuales poseen un nivel elevado de exigencia hacia las organizaciones y cada vez, al contar con mayor oferta en el mercado y al contar con consumidores más informados, las áreas comerciales de las compañías deben hacer un doble esfuerzo por llegar a los clientes y mantenerlos satisfechos y fidelizados. En el mercado de los seguros también se presenta esta situación y adicionalmente se involucra un componente adicional a tener en cuenta, que corresponde a los riesgos propios de l...

  16. Sistema de Protección Social en Salud y calidad de la atención de hipertensión arterial y diabetes mellitus en centros de salud Quality of health care for diabetic and hipertensive patients in primary care settings servicing Mexican Seguro Popular

    OpenAIRE

    Maki E Ortiz-Domínguez; Francisco Garrido-Latorre; Ricardo Orozco; Dayana Pineda-Pérez; Marlenne Rodríguez-Salgado

    2011-01-01

    OBJETIVO. Medir la calidad técnica de la atención a pacientes con diabetes mellitus tipo 2 (DM) e hipertensión arterial (HAS) en los centros de salud (CS) de los Servicios Estatales de Salud de México, al comparar su desempeño según condición de acreditación al Seguro Popular (SP). MATERIAL Y MÉTODOS. Estudio transversal realizado en 2008. Durante el año previo fue recolectado el historial de atención de 5 444 expedientes de pacientes con DM y 5 827 con HAS. Se determinaron los factores asoci...

  17. Sistema de acceso seguro a recursos de información para redes inalámbricas 802.11

    OpenAIRE

    José Luis Mejía Nogales; Sergio Vidal Beltrán; José Luis López Bonilla

    2006-01-01

    Este artículo presenta el diseño e implementación de un sistema de acceso seguro a recursos de información confidencial a través de redes inalámbricas del tipo IEEE 802.11. Para lograr esto, la seguridad del sistema se distribuye en tres procesos principales: un portal cautivo, un servidor de autenticación y un punto de acceso.

  18. Consumo de tabaco en la población derechohabiente del Instituto Mexicano del Seguro Social

    Directory of Open Access Journals (Sweden)

    FERNÁNDEZ-GÁRATE IRMA HORTENCIA

    1997-01-01

    Full Text Available Objetivo. Conocer la prevalencia del tabaquismo en la población derechohabiente usuaria del Instituto Mexicano del Seguro Social. Material y métodos. En un estudio transversal se entrevistó a la población usuaria de las 36 delegaciones, mediante un cuestionario estructurado y autoaplicable sobre el consumo de tabaco, edad de inicio, cantidad de cigarros y suspensión del consumo. Resultados. Se estudiaron 45 117 sujetos, en proporción similar por género. La prevalencia de fumadores fue del 40% en hombres, del 17.6% en mujeres y mayor en los estados del norte que en el resto del país. Existe un efecto de edad en el consumo de tabaco y más de la mitad de los fumadores iniciaron el hábito en la adolescencia. Conclusiones. La prevalencia de tabaquismo que se encontró es elevada, aunque el promedio de cigarros consumidos no es alto. No obstante, el índice de abandono es bajo. Se requieren medidas de intervención en salud pública para disminuir esta adicción.

  19. O papel da Justiça nos planos e seguros de saúde no Brasil The role of the court system in regulating health insurance plans in Brazil

    OpenAIRE

    Danielle Conte Alves; Ligia Bahia; André Feijó Barroso

    2009-01-01

    A grande quantidade de reclamações dos consumidores de planos e seguros privados de saúde se tornou freqüente no setor suplementar, com reflexos sobre o Poder Judiciário. Essa problemática fez surgir a necessidade de regulação desse mercado privado, que se iniciou em 1998, por meio da Lei nº. 9.656. Um dos desafios que a Agência Nacional de Saúde Suplementar (ANS) enfrenta é a resistência das operadoras perante a legislação, além do fato de ainda existirem contratos não regidos pela referida ...

  20. Comportamiento Sexual y Autoeficacia para la Negociación de Sexo Más Seguro en Personas Heterosexuales

    OpenAIRE

    Pérez-Jiménez, David; Santiago-Rivas, Marimer; Serrano-García, Irma

    2009-01-01

    La autoeficacia se le ha identificado como uno de los factores que puede facilitar o dificultar llevar a cabo sexo más seguro. Estudios revelan que las personas que están el relaciones estables usan métodos de protección menos frecuente que quienes tienen parejas casuales. Realizamos un estudio con 447 personas heterosexuales activas sexualmente. Les administramos un cuestionario dirigido a medir el comportamiento sexual, el uso del condón masculino y la práctica de la masturbación mutua, y l...

  1. Inferencia de tipos seguros en un lenguaje funcional con destrucción explícita de memoria

    OpenAIRE

    Montenegro Montes, Manuel

    2007-01-01

    En este trabajo se describirá con detalle el diseño e implementación de un algoritmo de inferencia para un lenguaje funcional con manejo de regiones y destrucción explícita de memoria, llamado SAFE. Este algoritmo permite trabajar de modo seguro con estructuras de datos, ya que a partir del código fuente de un programa escrito en SAFE garantiza que durante la ejecución del mismo no se producirán accesos a zonas de la memoria ya liberadas.

  2. Diseño del Sistema Integral de Medicion de Gestion (SIMEG) de la IPS del Instituto de Seguros Sociales

    OpenAIRE

    Paula Bernal Gelvis; Nancy Alvarado Velasquez

    2000-01-01

    Este articulo presenta los resultados obtenidos en la monografia "Diserio del Sistema Integral de Medici6n de la Gestión (SIMEG) en la Institución prestadora de servicios (IPS) del Instituto de Seguros Sociales (ISS)"; en la que -utilizando la inferencia deductiva-, se plantea el SIMEG como una herramienta administrativa para la evaluación y el monitoreo de la gestión. Para el diseño de esta herramienta, en primera instancia se realiza un acercamiento teórico a la metodología recurri...

  3. Solvencia y competencia económica en el mercado de seguros de salud español

    OpenAIRE

    González Gómez, Faustino

    2012-01-01

    El principal objetivo de este trabajo de investigación es establecer cuáles son los efectos del cambio regulador de solvencia sobre el mercado nacional de seguros de enfermedad o salud conforme a los principios generales definidos por la Directiva de Solvencia II. Se analizan los efectos sobre la protección de los asegurados, la concentración del mercado y la competencia económica. Para la elaboración de este trabajo de investigación se han considerado los principios generales enunciados por ...

  4. O seguro depósito induz ao risco moral nas cooperativas de crédito brasileiras?: um estudo com dados em painel

    OpenAIRE

    Valéria Gama Fully Bressan; Marcelo José Braga; Aureliano Angel Bressan; Moisés de Andrade Resende-Filho

    2012-01-01

    Interesses conflitantes e monitoramento imperfeito podem induzir instituições financeiras cobertas por seguro depósito a se exporem mais ao risco do que o nível preconizado pelo fundo gestor do seguro. Testa-se se a instauração do Fundo Garantidor (FGS) do Sistema das Cooperativas de Crédito do Brasil (Sicoob) não induziu ao problema de risco moral. Utiliza-se um painel com dados mensais de 180 cooperativas (61,43% das cooperativas filiadas ao Sicoob). Modelos de dados em painel estimados com...

  5. Onde está o risco? Os seguros no contexto do turismo de aventura Where is the risk? Insurance in the context of adventure tourism

    OpenAIRE

    Mary Jane Spink; Dolores Galindo; Antonio Cañas; Daniella T. Souza

    2004-01-01

    A indústria de seguros vem respondendo à crescente exposição deliberada ao risco no contexto do turismo de aventura. Os seguros constituem apenas uma das possíveis aplicações de tecnologias do risco, mas têm se tornado um dos elementos centrais nos diferentes tipos de contratos estabelecidos pelas operadoras de turismo. Procuramos, neste artigo, responder à pergunta: de quem é a responsabilidade pelos danos, quando o risco é ativamente procurado como forma de lazer? Abordaremos inicialmente a...

  6. LA IGUALDAD DE SEXOS Y EL PRECIO DEL SEGURO PRIVADO EN UN CONTEXTO DE PROTECCIÓN SOCIAL

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    Daniel Hernández González

    2012-07-01

    Full Text Available El Seguro como institución ofrece protección y cobertura frente a la materialización de riesgos a cambio del pago de una prima, pudiendo así articularse como una herramienta de protección social. La Sentencia del Tribunal de Justicia Europeo de 1 de marzo de 2011 impide que ya en el ejercicio 2013 las primas de seguro utilicen la variable sexo como herramienta dentro de la valoración de riesgos y determinación de precios, dando lugar a una situación que, tal y como aquí se expone e independientemente de sus efectos económicos para aseguradoras y asegurados, se plantea de forma no muy acertada y distante de los objetivos que pretende cumplir. The insurance offers protection and coverage against the materialisation of risks in exchange for a premium and it can be defined as a tool of social protection. The judgment of the European Court of Justice of 1 March 2011 prevents that insurance premiums are based on the variable “sex” as a tool in risk assessment and pricing, leading to a situation which, regardless of their economic impact on insurers and policyholders, is unfortunate and away from the objectives it seeks to comply.

  7. Distribuciones de siniestralidad en seguro de vida: siniestralidad total en carteras de pólizas con riesgo de fallecimiento.

    Directory of Open Access Journals (Sweden)

    Sánchez López, José María

    2003-01-01

    Full Text Available En el tratamiento técnico actuarial del seguro de vida, tras valorar cuantitativamente la probabilidad individual de fallecimiento de cada póliza, es necesario agregar los resultados individuales para obtener una representación de la siniestralidad total de la cartera. Se presta, en este trabajo, especial atención a carteras de pólizas con seguro de muerte, investigándose las más adecuadas distribuciones representativas de la siniestralidad. Se analizan métodos para obtener la distribución exacta y distribuciones aproximadas según la Teoría del Riesgo Individual. Se expone y critica el método clásico, dentro de la Teoría del Riesgo Individual, que aproxima la distribución de siniestralidad a una distribución normal. Se exponen posibles aproximaciones mediante la distribución de Poisson compuesta o generalizada, siguiendo la Teoría del Riesgo Colectivo. En todas las aproximaciones se realiza un estudio de los errores y del número de cálculos necesarios. Además, se analiza la hipótesis más relevante asumida: la independencia entre riesgos (efectos y soluciones y se concluye con recomendaciones según las posibilidades de cálculo para la cartera de pólizas con que se trabaje.

  8. Estructura metálica del edificio social de la Mutua General de Seguros Barcelona – España

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    Busquets, Xavier

    1977-10-01

    Full Text Available This describes the solution adopted for the Mutua General de Seguros structure on the Diagonal in Barcelona. The building consists of six general basements and two elevated wings, one of thirteen stories and another of four, joined together on the third and second floors. The problems which had to be overcome were various in nature: from anchoring the concrete blocks in the underground floors to achieving maximum clear space —there are no intermediate supports on the office floors— this was achieved satisfactorily, on the higher floors by means of large span porticos, made up of two well-defined parts (the ground floor portico and the upper floor assembly], from both a structural and esthetic point of view.Se describe la solución adoptada para estructura de la Mutua General de Seguros, en la Diagonal de Barcelona. El edificio se compone de seis sótanos generales y dos bloques elevados, uno de trece plantas y otro de cuatro, debidamente enlazados por la segunda y tercera. Los problemas planteados fueron de muy diversa índole: desde la sujeción de las pantallas de hormigón de las plantas enterradas, hasta la consecución de la máxima diafanidad —en todas las plantas de oficinas no existen soportes intermedios— en las plantas altas a base de pórticos de gran luz, compuestos de dos partes bien definidas (el pórtico de planta baja y el conjunto de las superiores y acertadamente resueltos, desde el doble punto de vista estructural y estético.

  9. Miniesternotomia: um acesso seguro para a cirurgia cardíaca

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    Leonardo Andrade MULINARI

    1997-10-01

    Full Text Available Atualmente, na constante busca de minimizar o tempo de intemação hospitalar e melhorar a recuperação no pós-operatório, várias altemativas cirúrgicas têm sido aventadas. Iniciamos o uso da estemotomia parcial como acesso para diversos tipos de operações cardíacas. O presente trabalho tem como objetivo apresentar a evolução hospitalar dos pacientes operados através desta técnica. No período de novembro de 1996 a março de 1997, estudamos 51 pacientes operados através da esternotomia parcial. A idade média foi de 46,8 anos, sendo 26 pacientes do sexo feminino. Os procedimentos mais realizados foram o tratamento cirúrgico valvar e as revascularizações miocárdicas. O acesso utilizado para os pacientes com lesões valvares foi a esternotomia parcial em "T" invertido no segmento superior do esterno; para outras lesões, uma esternotomia em "T" no segmento inferior e, pela dificuldade técnica imposta nas re-operações e nos procedimentos múltiplos, utilizou-se uma terceira variação, que foi a esternotomia parcial em "H" deitado, estendendo-se no corpo esternal do primeiro ao quarto espaço intercostal. O comprimento médio da incisão de pele foi de 9,9 cm. Foram realizadas 19 incisões em "T", 17 em "T" invertido e 15 em "H" deitado. O tempo médio de ventilação mecânica foi de 2,8 horas, de permanência na UTI de 31,5 horas e de internação hospitalar de 5,9 dias. Não houve complicação diretamente relacionada com o acesso e em apenas 1 caso foi necessária a conversão para a esternotomia total. Analisando a evolução destes 51 pacientes, pudemos concluir que a esternotomia parcial é um acesso seguro para o tratamento cirúrgico de diversas cardiopatias, isoladas, associadas ou re-operações. Traz um resultado estético favorável e facilita a recuperação no pós- operatório, devendo fazer parte do repertório de todo o cirurgião cardiovascular.Recently, in the constant search for shortening hospital stay and

  10. Aplicación del programa HACCP en servicios de alimentación de hospitales de la Caja Costarricense de Seguro Social: Experiencia de un hospital

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    Geovanna Martínez Díaz

    2005-12-01

    Full Text Available La alimentación que brindan los servicios de alimentación de los hospitales representa uno de los pilares fundamentales en la recuperación y/o mantenimiento de la salud del paciente hospitalizado. Además se brinda alimentación a los funcionarios del hospital,lo cual hace indiscutiblemente,que estos servicios tengan acceso a gran cantidad de personas diariamente;esto obliga a brindar un servicio de calidad. Por otro lado,cuando se habla sobre inocuidad,se piensa en un alimento que no representa ningún riesgo para la salud humana,lo cual indudablemente está ligado al término calidad.Con esta conceptualización se puede pensar:¿Estarán nuestros hospitales brindando una alimentación de calidad? Para responder a ello hay que considerar una serie de factores que influyen a través de la cadena alimentaria,como son:transporte de alimentos,instalaciones físicas,equipo disponible, manipuladores de alimentos,capacitación,controles y apoyo institucional;entre otros. Buscando establecer normas de trabajo en estos aspectos,la Dirección Técnica de Servicios de Salud de la Caja Costarricense de Seguro Social,representada en la Sección de Nutrición,impulsó en 1997,la creación del Proyecto Magistral en Seguridad Alimentaria,para los servicios de alimentación de los hospitales nacionales.Para el 2003,luego de varias acciones tomadas y con planes de trabajo establecidos a corto y mediano plazo,el proyecto se suspendió por falta de recursos económicos. Con grandes esfuerzos y apoyo de las autoridades hospitalarias,el Servicio de Alimentación del Hospital Dr.R.A.Calderón Guardia está trabajando bajo los lineamientos establecidos en el Proyecto de Seguridad Alimentaria.En este artículo se presentan los resultados de esta experiencia desde agosto del 2002 a diciembre del 2004. De acuerdo a los datos presentados,la implementación de un programa de control sanitario permite mejorar la inocuidad de los alimentos y por ende la calidad del

  11. O seguro depósito induz ao risco moral nas cooperativas de crédito brasileiras?: um estudo com dados em painel

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    Valéria Gama Fully Bressan

    2012-06-01

    Full Text Available Interesses conflitantes e monitoramento imperfeito podem induzir instituições financeiras cobertas por seguro depósito a se exporem mais ao risco do que o nível preconizado pelo fundo gestor do seguro. Testa-se se a instauração do Fundo Garantidor (FGS do Sistema das Cooperativas de Crédito do Brasil (Sicoob não induziu ao problema de risco moral. Utiliza-se um painel com dados mensais de 180 cooperativas (61,43% das cooperativas filiadas ao Sicoob. Modelos de dados em painel estimados com o índice de Basileia como proxy da exposição ao risco das cooperativas indicam que a instauração do FGS induziu ao problema de risco moral.

  12. Capacitación en línea para la certificación de agentes de seguros de instituciones financieras

    OpenAIRE

    Díaz-Camacho, José Enrique; Velásquez-Durán, Anabel

    2012-01-01

    El presente artículo muestra los resultados de la aplicación de la capacitación en línea y su efecto sobre la certificación de agentes de seguros ante la Comisión Nacional de Seguros y Fianzas en México, específicamente el curso Cédula A, impartido en el campus IntelifinMR y como ésta permite que los participantes puedan estudiar en forma autónoma y auto dirigida, obteniendo un aprendizaje comprobable. El procedimiento general consistió en la creación de dicho curso con un diseño instrucciona...

  13. Garantías de los derechos reales mediante el sistema de registro y de seguro de título

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    Norma Loureiro Russo

    2014-11-01

    Full Text Available El concepto de seguridad jurídica tiene tal amplitud que trasciende cualquier funciónjurídica, ubicándose en la aplicacíón del derecho todo.Cabe destacar en ese concepto, sus valores esenciales y constitutivos, tales como la justicia y la seguridad, siendo la certeza uno de sus ingredientes. (...Contenido: Seguridad jurídica. Función notarial y seguridad jurídica. La publicidad registral y la seguridad jurídica. Esencia. Materia. Fines. Oponibilidad. Legitimidad.Garantía de los derechos reales y seguro de títulos. Origen del contrato de seguro de título. Concepto. Conclusiones

  14. Análisis de Eficiencia Técnica y Productividad del Marketing para una Compañía de Seguros de Vida

    OpenAIRE

    Hanns de la Fuente M.; Carmen Berné M; Marta Pedraja I.; José Luis Rojas F.

    2009-01-01

    La competitividad del mercado asegurador chileno genera a las empresas la necesidad de tomar decisiones para incrementar su eficiencia y productividad. Para incrementar la eficiencia, se necesita saber que tan bien se hacen las cosas actualmente, y para incrementar los niveles de productividad, es necesario determinar los factores que influyen en ésta y cuantificar su influencia bajo las condiciones actuales. Este trabajo analiza el caso de una compañía de seguros de vida, donde los niveles d...

  15. A Evolução do Programa de Subvenção do Prêmio do Seguro Rural: Uma Avaliação do Período de 2006 a 2010

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    Adriano Bicioni Pacheco

    2014-08-01

    Full Text Available O presente artigo busca analisar a evolução do Programa de Subvenção do Prêmio do Seguro Rural ao longo do período de 2006 a 2010. Realizou-se uma revisão da literatura sobre os fundamentos da operação da indústria de seguros, com ênfase ao seguro rural. Desenvolveu-se uma síntese de experiências internacionais com o seguro rural: Estados Unidos, Canadá e União Europeia; posteriormente, relatou-se a política agropecuária de seguro rural do Brasil. Utilizaram-se os dados estatísticos dos Censos do Seguro Rural, compilados pelo MAPA – Ministério da Agricultura, Pecuária e Abastecimento com o objetivo de avaliar-se o programa ao longo de sua operacionalização. Identificou-se que o programa apesar de benéfico à estabilização da renda do produtor rural, ainda possui pequeno escopo de atuação frente ao total da produção agropecuária nacional. Complementarmente, os recursos federais disponibilizados precisam ser incrementados para que se alcancem taxas representativas de áreas seguradas. Por fim, indica-se a necessidade de expansão do programa especialmente orientada a médios e pequenos produtores.

  16. On Modelling Insurance Data by Using a Generalized Lognormal Distribution || Sobre la modelización de datos de seguros usando una distribución lognormal generalizada

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    García, Victoriano J.

    2014-12-01

    Full Text Available In this paper, a new heavy-tailed distribution is used to model data with a strong right tail, as often occurs in practical situations. The distribution proposed is derived from the lognormal distribution, by using the Marshall and Olkin procedure. Some basic properties of this new distribution are obtained and we present situations where this new distribution correctly reflects the sample behaviour for the right tail probability. An application of the model to dental insurance data is presented and analysed in depth. We conclude that the generalized lognormal distribution proposed is a distribution that should be taken into account among other possible distributions for insurance data in which the properties of a heavy-tailed distribution are present. || Presentamos una nueva distribución lognormal con colas pesadas que se adapta bien a muchas situaciones prácticas en el campo de los seguros. Utilizamos el procedimiento de Marshall y Olkin para generar tal distribución y estudiamos sus propiedades básicas. Se presenta una aplicación de la misma para datos de seguros dentales que es analizada en profundidad, concluyendo que tal distribución deberá formar parte del catálogo de distribuciones a tener cuenta para la modernización de datos en seguros cuando hay presencia de colas pesadas.

  17. Sistema de Protección Social en Salud y calidad de la atención de hipertensión arterial y diabetes mellitus en centros de salud Quality of health care for diabetic and hipertensive patients in primary care settings servicing Mexican Seguro Popular

    Directory of Open Access Journals (Sweden)

    Maki E Ortiz-Domínguez

    2011-01-01

    Full Text Available OBJETIVO. Medir la calidad técnica de la atención a pacientes con diabetes mellitus tipo 2 (DM e hipertensión arterial (HAS en los centros de salud (CS de los Servicios Estatales de Salud de México, al comparar su desempeño según condición de acreditación al Seguro Popular (SP. MATERIAL Y MÉTODOS. Estudio transversal realizado en 2008. Durante el año previo fue recolectado el historial de atención de 5 444 expedientes de pacientes con DM y 5 827 con HAS. Se determinaron los factores asociados al buen control metabólico de DM (glucosaOBJECTIVE. To assess health care quality provided to type-2 diabetic and hypertensive patients in primary care settings from the Mexican Ministry of Health and to evaluate whether accredited clinics providing services to the Mexican Seguro Popular performed better in terms of metabolic control of those patients compared to the non-accredited. MATERIAL AND METHODS. Cross-sectional study performed on 2008. Previous year clinical measures were obtained from 5 444 diabetic and 5 827 hypertensive patient's clinical records. Adequate metabolic control (glucose <110 mg/dl for diabetes and blood pressure <140/90 mmHg for hypertension associated factors were assessed by multiple-multilevel logistic regression methods. RESULTS. Patients attending accredited clinics were more likely to be controlled, however, metabolic control was not constant over time of accreditation. CONCLUSIONS. Additional efforts are required to monitor accredited clinics' performance in order to maintain both metabolic control and clinical assessment of patients.

  18. Diagnóstico del manejo de los desechos en los laboratorios clínicos de la Caja Costarricense del Seguro Social

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    Grettel Valverde Chaves

    1998-07-01

    Full Text Available El documento de políticas y normas presupuestarias de la Caja Costarricense del Seguro Social para 1997, indica la obligación de los establecimientos de salud de cumplir lo dispuesto en la Ley Orgánica del Ambiente. Estando enfocado el interés de la institución al logro de un manejo adecuado de los desechos, el presente estudio se hizo para conocer la percepción y el conocimiento del problema, el grado de equipamiento, formas de tratamiento de los diferentes tipos de desecho, capacitación del personal, higiene y salud ocupacional de los laboratorios clínicos de la institución. A través de una encuesta suministrada a una muestra de los laboratorios estadísticamente significativa, se obtuvo los siguientes resultados: 90% desconoce la Ley Orgánica del Ambiente y otras. 75% consideran no hacer un manejo adecuado de los desechos. 72% consideran no tener personal entrenado adecuadamente. 78% de las jefaturas indican no conocer un manual que les indique cómo manejar adecuadamente los desechos. 92% indica que el personal que hace manejo de desechos carece de guantes especiales para efectuar esta labor. 73.5% de los laboratorios no recuperan papel y en más del 90% no se recupera vidrio, cartón ni plástico. 80% de los laboratorios poseen autoclaves para utilizar tanto el material limpio como para manejo de desechos. 85.7% no desinfecta los basureros de uso en los laboratorios. No se le da tratamiento al 91.7% de las orinas, 72.6% de heces y 36.1% de las sangres procesadas.A 1997 Document on budgetary Policies and Standars issued by Costa Rica’s Government-operated Soocialized Health Care System (CCSS requires the State Health Clinics to comply with the stipulations included in the Enviroment Organic Law. Because the CCSS has focused its interest on achieving appropiate waste mangement, this study was conducted in order to find out the clinical laboratories perception and kowledge of the problem, types of waste, personnel training, and

  19. La trayectoria del aborto seguro en Cuba: evitar mejor que abortar

    Directory of Open Access Journals (Sweden)

    María Elena Benítez Pérez

    2014-12-01

    Full Text Available Resumen El aborto provocado o inducido es una práctica que se ha observado en todos los países. A su alrededor la neutralidad parece no existir al estar permeado por posturas que terminan polarizando todo debate. En Cuba ha sido un método extensamente usado por las mujeres para regular su procreación y este será el problema de investigación del presente trabajo. Su desarrollo parte de la hipótesis general de que aún bajo condiciones seguras, el aborto reduce; pero no elimina, riesgos y secuelas para la salud femenina. El objetivo está dirigido a fundamentar por qué evitar siempre es mejor que abortar. Su base teórica es el método de los determinantes próximos enunciado por Davis y Blake. Abstract The abortion -also known as inducted- is a practice that it has been observed worldwide. Neutrality seems not to exist around this practice, but quite a number of postures that at the end polarize the debate. This method has been used widely by women in Cuba, in order to control their procreation. This will be the research problem of the present work. Its development is based on the general hypothesis of that still under save conditions; the abortion reduces, but doesn't eliminate, risks and sequels for the feminine health. The objective is aimed to explain why avoiding always is better that aborting. Its theoretical support is the method of the next determinants, enunciated by Davis and Blake.

  20. A experiência norte-americana com o seguro agrícola: lições ao Brasil?

    Directory of Open Access Journals (Sweden)

    Marcelo Fernandes Guimarães

    2009-03-01

    Full Text Available O seguro agrícola é um instrumento eficaz de gestão de riscos rurais. Paradoxalmente, sua utilização pelos agricultores é relativamente reduzida em quase todo o mundo. Uma notória exceção é os Estados Unidos da América, país onde essa modalidade alcançou reconhecido sucesso. O processo, porém, foi lento, muito dispendioso e envolveu a participação determinante do Estado em diversas ações complementares. Dessa forma, países que desejam incluir esse instrumento dentre as prioridades de sua política agrícola, como parece ser o caso brasileiro, devem estar atentos aos requisitos para o seu sucesso e aos resultados e problemas gerados ou ampliados por sua massificação. O estudo da experiência norte-americana fornece lições relevantes.Agricultural insurance is considered to be an effective to manage rural risks. Surprisingly, its adoption by farmers is very limited all over the world. An outstanding exception is the United States of America, country in which this instrument has achieved remarkable success. Nevertheless, the process of diffusion of agricultural insurance in the USA was slow and expensive. It has also required significant government intervention through a variety of complementary actions. In this context, countries willing to introduce this instrument among other agricultural policy tools, as it seems the case of Brazil, should proceed with caution. Agricultural insurance success has important pre-requisites and its general diffusion may amplify its problems. The analysis of the North American experience provides worthwhile lessons.

  1. La extensión del seguro de salud en Iberoamérica: una estrategia de política exterior del franquismo en la inmediata posguerra (1942-1959

    Directory of Open Access Journals (Sweden)

    Vilar Rodríguez, Margarita

    2015-06-01

    Full Text Available For reasons of political strategy, the Franco dictatorship sought to have an influence in matters of social insurance, especially sickness coverage, in Latin American countries during the 1940s and 1950s. The results of this collaboration were mediocre in practice and led to little real progress, apart from imitating management institutions and some actuarial and statistical training courses. This failure was due to a large extent to the backwardness and weakness of the Franco dictatorship’s own model of health care provision, stifled by a chronic financial deficit and with serious shortcomings in both coverage of the population and provisions offered. Beginning in the 1960s, once the stage of isolation and autarky was overcome, the Francoist authorities reduced their interest in the Latin American strategy and started to look towards Europe.La dictadura franquista por motivos de estrategia política intentó influir en materia de seguros sociales, en especial en la cobertura de la enfermedad, en los países iberoamericanos durante las décadas de 1940 y 1950. Los resultados de esta colaboración resultaron mediocres en la práctica y produjeron pocos avances reales, al margen de la imitación de las instituciones de gestión y algunos cursos de formación actuarial y estadística. Este fracaso se debió en gran medida al propio atraso y debilidad del modelo de cobertura sanitaria de la dictadura franquista ahogado por un déficit financiero crónico y con graves limitaciones tanto en la cobertura de la población como en las prestaciones ofrecidas. A partir de la década de 1960, una vez superada la etapa de aislamiento y autarquía, las autoridades franquistas redujeron su interés en la estrategia iberoamericana y comenzaron a mirar a Europa.

  2. Política de dividendos en una cartera de seguros no vida: Un análisis desde la teoría colectiva del riesgo

    OpenAIRE

    Mármol, Maite

    2002-01-01

    [spa] El análisis de la solvencia en las carteras de seguros no vida es un tema que ha sido muy tratado en la literatura actuarial generando una amplia bibliografía. Las hipótesis y los riesgos analizados han ido ampliándose, incluyéndose, ya no sólo el riesgo básico que viene representado por las fluctuaciones de la siniestralidad, sino otros muchos factores como la rentabilidad de las reservas, la inflación, los ciclos económicos, el reparto de dividendos, etc... El entorno en el que se des...

  3. Política de dividendos en una cartera de seguros no vida: Un análisis desde la teoría colectiva del riesgo

    OpenAIRE

    Mármol Jiménez, Maite

    2002-01-01

    El análisis de la solvencia en las carteras de seguros no vida es un tema que ha sido muy tratado en la literatura actuarial generando una amplia bibliografía. Las hipótesis y los riesgos analizados han ido ampliándose, incluyéndose, ya no sólo el riesgo básico que viene representado por las fluctuaciones de la siniestralidad, sino otros muchos factores como la rentabilidad de las reservas, la inflación, los ciclos económicos, el reparto de dividendos, etc... El entorno en el que se desarroll...

  4. Los seguros agrícolas: Evolución y perspectivas en América Latina y el Caribe

    OpenAIRE

    Mark D. Wenner

    2005-01-01

    Este documento se centra en el manejo de riesgos de producción agrícola, explica los conceptos fundamentales y analiza los motivos por los que los mercados de seguros han demorado en desarrollarse en América Latina y el Caribe. Asimismo, formula recomendaciones para la creación de mercados sostenibles en contextos de países en desarrollo. En este trabajo, se sostiene que los escasos recursos públicos estarían mejor invertidos en la creación de condiciones de mercado favorables para el desarro...

  5. Panorama epidemiológico de la mortalidad por cáncer en el Instituto Mexicano del Seguro Social: 1991-1995

    OpenAIRE

    SALMERÓN-CASTRO JORGE; FRANCO-MARINA FRANCISCO; SALAZAR-MARTÍNEZ EDUARDO; LAZCANO-PONCE EDUARDO CÉSAR

    1997-01-01

    Objetivo. Describir el comportamiento de la mortalidad global por cáncer, así como la mortalidad específica para las principales neoplasias malignas en población adulta derechohabiente (DH) del Instituto Mexicano del Seguro Social (IMSS). Material y métodos. A partir de los registros oficiales de defunción y de la información sobre la población para los años 1991-1995, se estimaron las tasas anuales de mortalidad global y específica para las 10 principales neoplasias malignas por sexo, en may...

  6. Onde está o risco? Os seguros no contexto do turismo de aventura Where is the risk? Insurance in the context of adventure tourism

    Directory of Open Access Journals (Sweden)

    Mary Jane Spink

    2004-08-01

    Full Text Available A indústria de seguros vem respondendo à crescente exposição deliberada ao risco no contexto do turismo de aventura. Os seguros constituem apenas uma das possíveis aplicações de tecnologias do risco, mas têm se tornado um dos elementos centrais nos diferentes tipos de contratos estabelecidos pelas operadoras de turismo. Procuramos, neste artigo, responder à pergunta: de quem é a responsabilidade pelos danos, quando o risco é ativamente procurado como forma de lazer? Abordaremos inicialmente a inserção da proposta de estudo no contexto da literatura sobre risco e aspectos gerais da regulação do turismo de aventura no Brasil. A seguir, por meio de estudo de caso de uma operadora de turismo de aventura, analisaremos como é garantida a segurança do usuário no jogo de relações entre mercado de turismo, seguros e Estado. Concluiremos com breves considerações sobre a partilha dos danos e responsabilidades entre operadoras de seguros e de turismo, Estado e usuários, apontando ainda para possíveis mudanças no cenário atualmente configurado.The insurance industry has been quick to respond to the increase in deliberate exposure to risk in the context of adventure tourism. Although insurance is only one aspect of the possible applications of risk technologies, it has become a central element in the variety of contracts established between tourism operators and clients. This article addresses the question: who has responsibility for damages incurred when risk is actively sought in leisure pursuits? Initially we'll discuss risk-adventure in the context of the literature on risk and the regulation of adventure tourism in Brazil. Based on a case study of a tourism office offering leisure activities in nature, it proceeds with an analysis of how client safety is guaranteed in the network of relationships involving tourism market, insurance industry and State regulation. It concludes with brief considerations about the distribution of

  7. Violencia contra la mujer: conocimiento y actitud del personal médico del Instituto Mexicano del Seguro Social, Morelos, México

    OpenAIRE

    Méndez-Hernández Pablo; Valdez-Santiago Rosario; Viniegra-Velázquez Leonardo; Rivera-Rivera Leonor; Salmerón-Castro Jorge

    2003-01-01

    OBJETIVO: Evaluar la actitud afectiva, cognoscitiva y conductual del personal médico del Instituto Mexicano del Seguro Social del estado de Morelos, México, hacia la identificación y canalización de mujeres maltratadas que acuden a consulta médica, así como identificar las barreras institucionales y de la práctica médica que dificultan el manejo dentro de los servicios de salud de las mujeres maltratadas. MATERIAL Y MÉTODOS: De septiembre a diciembre de 1999 se realizó un estudio transversal ...

  8. La inserción laboral de los beneficiarios del Seguro de Capacitación y Empleo en el Partido de General Pueyrredon

    OpenAIRE

    Aspiazu, Eliana; Alegre, Patricia; Fernández Blanco, Ana

    2011-01-01

    En este trabajo nos proponemos discutir los efectos del Seguro de Capacitación y Empleo (SCE), como política de empleo focalizada, sobre la inserción laboral de los beneficiarios del Municipio de General Pueyrredon. La perspectiva de análisis adoptada considera que las políticas de empleo representan un área dentro de las políticas sociales destinada a regular la fuerza de trabajo. Se parte del concepto amplio de exclusión, que considera la imposibilidad de los individuos de acceder a bienes,...

  9. La prima de riesgo recargada en un seguro de rentas: tarificación mediante el uso de una medida de riesgo coherente || The Risk Recharged Premium for a Survival Life Insurance: Recharged Premium through the Use of a Coherent Risk Measure

    Directory of Open Access Journals (Sweden)

    Hernández Solís, Montserrat

    2013-01-01

    Full Text Available En este estudio se obtiene un principio de cálculo de primas, para el ramo de vida, basado en una medida de riesgo coherente, la esperanza distorsionada transformada proporcional del tanto instantáneo (Wang, 1995, que justifique la recomendación de Solvencia II de reducir, para un seguro de rentas, el efecto del tanto instantáneo de mortalidad y conseguir de este modo una prima recargada implícitamente para hacer frente a las desviaciones desfavorables de la siniestralidad real. La modalidad de seguro seleccionada parael estudio ha sido el de rentas, seguro con cobertura de supervivencia, calculándose la prima única de riesgo para las cuatro leyes de supervivencia más aceptadas, como son la primera y segunda de Dormoy, la ley de Gomperzt y la ley de Makeham. La selección de estas leyes ha sido por ser las que mejor se ajustan al modelo mediante el empleo de las tablas de mortalidad elaboradas por Pérez (2000. En los seguros de vida con cobertura de supervivencia, una experiencia de siniestralidad negativa para la compañía significa que los asegurados son más longevos de lo esperado. Así, cuando se calculan las primas, es una práctica común añadir un margen de seguridad implícito, en forma de porcentaje, a las probabilidades de fallecimiento qx, o bien emplear una tabla de mortalidad cuyas probabilidades de fallecimiento sean inferiores a las del grupo humano considerado. Esto se puede interpretar como un decremento del tanto instantáneo con un múltiplo. En este artículo se demuestra que el empleo de la función de distorsión, hasta ahora empleada en el ramo de no vida y siendo la novedad su aplicación al ramo de vida asegurador, produce este mismo efecto, pero mediante el cálculo de una prima recargada de manera implícita. || The goal of this study is to get a premium calculation principle, for the life insurance business, based on a coherent risk measure (Wang, 1995 in the form of power, called Proportional Hazards (PH

  10. Modelización financiero-actuarial de un seguro de dependencia = Long Term Care Insurance Actuarial Model

    Directory of Open Access Journals (Sweden)

    Herranz Peinado, Patricia

    2008-01-01

    Full Text Available España ha seguido la tendencia de otros países en cuanto a la cobertura de las personas dependientes, es decir, aquellas que necesitan ayuda para realizar las tareas básicas de la vida diaria, y lo ha hecho mediante la aprobación de la Ley de Promoción de la Autonomía Personal y Atención a las personas en situación de Dependencia, que se basa en la financiación pública. A pesar de los esfuerzos para el desarrollo de la Ley, ésta no está dando los frutos que debiera haber dado y se hace necesaria la existencia de productos privados de cobertura que puedan atender a las necesidades de aquellos que los demandan. Dado los escasos estudios que sobre este tema existen todavía en nuestro país, el establecer una aproximación a las primas de un seguro privado de dependencia puede servir de referencia para el análisis de su comercialización por parte de las aseguradoras. En este trabajo se trata de analizar una serie de cuestiones que den respuesta a dos objetivos. Por una parte, establecer un modelo financiero-actuarial que sirva como apoyo en el diseño de productos privados que cubran la dependencia y, por otra, realizar una aproximación a las bases técnicas actuariales que lleven a la cuantificación de las primas. = Spain has followed the trend of other countries about long term care, that is, people who need help to perform the basic tasks of daily living. In December 2006, Spanish Parliament approved the law called Ley de Promoción de la Autonomía Personal y Atención a las personas en situación de Dependencia, with public financing. This law is not producing the expected results, and it makes necessary the existence of private insurance. Currently, there are few studies on long term care in our country. An approach to premiums of a private insurance can serve as reference for the studies by insurers. This work tries to study a series of questions responding simultaneously to two goals, establishing an actuarial model and, on

  11. Políticas de inversión del sector de seguros y de pensiones en la Unión Europea: Inversión en inmuebles

    OpenAIRE

    Suarez, Jose L.; Hernandez, Rafael

    2006-01-01

    El volumen de las inversiones del sector seguros y fondos de pensiones europeo representa un porcentaje elevado del mercado inversor de la Unión Europea (UE) y, en particular, este sector es uno de los inversores institucionales más importantes del mercado inmobiliario. La investigación describe las inversiones del sector de seguros y de fondos de pensiones y su estructura y estrategias de inversión. Se incluye información sobre Estados miembros de la UE y entidades privadas, así como la norm...

  12. Avaliação da implementação do programa de subvenção do prêmio do Seguro Rural

    Directory of Open Access Journals (Sweden)

    Estela Alves de Medeiros

    2013-06-01

    Full Text Available O trabalho objetiva realizar avaliação da implantação do Programa de Subvenção do Prêmio do Seguro Rural, criado pelo Decreto n. 5.121/2004 e gerenciado pelo Ministério da Agricultura, Pecuária e Abastecimento. A partir de pesquisa documental e entrevistas com responsáveis por sua implementação, a avaliação apresenta os antecedentes de sua criação, principais características, a implantação e resultados alcançados. A seguir, os resultados do Programa frente aos objetivos propostos pela política pública e com relação aos critérios de suficiência de recursos, instrumentos de gestão e participação social foram avaliados. A conclusão da avaliação aponta uma eficácia parcial do Programa. O interesse pela adesão continua vigente, o que demonstra sua necessidade e importância. É preciso, contudo, avançar em alguns pontos, como o efetivo exercício do papel do Comitê Gestor Interministerial do Seguro Rural e a garantia dos recursos orçamentários de forma tempestiva.

  13. Impacto del Seguro Popular en el gasto catastrófico y de bolsillo en el México rural y urbano, 2005–2008

    Science.gov (United States)

    Sosa-Rubí, Sandra G; Salinas-Rodríguez, Aarón; Galárraga, Omar

    2016-01-01

    Objetivo Estimar el efecto del Seguro Popular (SP) sobre la incidencia del gasto catastrófico en salud (GCS) y sobre el gasto de bolsillo en salud (GBS) en el mediano plazo. Material y métodos Con base en la Encuesta de Evaluación del Seguro Popular (2005–2008), se analizaron los resultados del efecto del SP en la cohorte rural para dos años de seguimiento (2006 y 2008) y en la cohorte urbana para un año (2008). Resultados A nivel conglomerado no se detectaron efectos del SP. A nivel hogar se encontró que el SP tiene un efecto protector en el GCS y en el GBS en consulta externa y hospitalización en zonas rurales; y efectos significativos en la reducción de GBS en consulta externa en zonas urbanas. Conclusiones El SP se muestra como un programa efectivo para proteger a los hogares contra gastos de bolsillo por motivos de salud en el mediano plazo. PMID:22282205

  14. Propuesta de formulación financiero-actuarial de un seguro de dependencia y acercamiento a una aplicación práctica

    Directory of Open Access Journals (Sweden)

    Mª Manuela Segovia

    2005-01-01

    Full Text Available En los países industrializados, convergen dos fenómenos demográficos, la longevidad y la escasa natalidad, que provocan un envejecimiento de la población y con ello una serie de procesos sociales que son necesarios atender. Uno de ellos, es la cobertura de la dependencia de las personas mayores, entendiendo por dependencia, la necesidad de ayuda para realizar las tareas básicas de la vida diaria. España se encuentra en la actualidad en plena discusión parlamentaria para regular mediante ley la dependencia y cubrir el avance de este problema que en los próximos años se verá agravado por nuestra evolución demográfica y social. Esta ley pretende establecer las bases para su atención mediante un seguro de dependencia, bien de cobertura pública por parte del Estado o bien por aseguradoras privadas. El trabajo presentado en este congreso forma parte de un estudio amplio sobre la dependencia en España y abordará una aproximación a la formulación actuarial de un seguro de dependencia partiendo del uso de cadenas de Markov para un modelo de múltiples estados, y un acercamiento a la aplicación práctica mediante el análisis de datos sobre discapacidad de nuestro país.

  15. THE PRESENCE OF NON-INDIANS IN INDIAN VILLAGES OF PORTO SEGURO: INTER-ETHNIC RELATIONS, MULTICULTURAL TERRITORIES AND RECONFIGURATION OF IDENTITY - INITIAL THOUGHTS

    Directory of Open Access Journals (Sweden)

    Francisco Cancela

    2007-12-01

    Full Text Available The present article presents some reflections on the interétnicos contacts between indians and not-indians in the villages of indians of the Captaincy of Porto Seguro, enter the years of 1758 and 1820. Breaking of the identification of the citizens not-aboriginals, we search to present the idea of that the villages of indians if had transformed into a multicultural territory, where white, mediums brown, blacks and indians had kept some conditional contacts to the general context of the conquest process and settling of Portuguese America. At the same time, these relations make possible a identity reconfiguration, a time that had forged experiences of solidarity, resistance and perception of the proper condition where the indians and the banished ones lived.

  16. Principales aspectos del contrato de Seguro de Responsabilidad Civil Profesional en relación con la Responsabilidad Médica

    OpenAIRE

    Catherine Arias

    2010-01-01

    La primera parte de ese artículo pretende hacer un recorrido por la definición del seguro de responsabilidad civil, la forma en la que fue introducido en la legislación colombiana, centrándose en el Código de Comercio de 1971 y en la ley 45 de 1990, en la que se consagró el aseguramiento de la culpa grave y la acción directa en cabeza de la víctima; para seguir con la ley 389 de 1997 que introdujo la modalidad de las cláusulas claims made. Posteriormente el estudio se enfocará en los elemento...

  17. Mecanismos de microrregulação aplicados por operadoras de planos de saúde sobre hospitais privados Mecanismos de microregulación aplicados por operadoras de seguros de salud en hospitales privados Mechanisms of microregulation of private hospitals by health plan operators

    Directory of Open Access Journals (Sweden)

    Maria Alicia Domínguez Ugá

    2009-10-01

    ção de valores, de prazos e procedimentos para pagamento.OBJETIVO: Analizar los mecanismos de microregulación aplicados por las operadoras de seguro de salud en las prácticas de gestión de la clínica y de calificación asistencial en hospitales prestadores de servicios. MÉTODOS: Estudio transversal realizado en pesquisa de amplitud nacional, cuyo universo fue constituido por los hospitales prestadores de servicios a las operadoras de seguro de salud en 2006. Fue construida una muestra de 83 unidades, estratificada según macroregión del Brasil y tipo de hospital. Los datos fueron obtenidos por medio de aplicación de cuestionario en entrevista a los directores de los hospitales.. RESULTADOS: La microregulación que las operadoras de seguro de salud ejercen sobre los hospitales en términos de la calificación de la asistencia fue muy baja o casi nula. La actuación de las operadoras fue mayoritariamente destinada al intenso control de la cantidad de servicios utilizados por los pacientes. Los hospitales que prestaban servicios a operadoras de seguro de salud no constituían micro-sistemas de salud paralelos o suplementarios al Sistema Único de Salud (SUS. Se observó que los prestadores hospitalarios privados eran mayoritariamente vinculados al SUS. Mientras tanto, no pertenecía a alguna red de prestadores privados, aún siendo objeto de fuerte regulación de la utilización de sus servicios, ejercida por las operadoras de seguros de salud. La intervención de las operadoras de seguros de salud con respecto a gestoras de sistemas de cuidado fue incipiente o casi ausente. Aproximadamente la mitad de los hospitales declaró adoptar directrices clínicas, mientras sólo 25,4% afirmaron ejercer la gestión de la patología y 30,5% mencionaron la gestión de los casos. CONCLUSIONES: Las relaciones contractuales entre hospitales y operadoras de seguros de salud se constituyen en contratos meramente comerciales con poca o ninguna incorporación de aspectos relativos a

  18. Is safety infliximab during pregnancy in patients with inflammatory bowel disease? ¿El tratamiento con infliximab es seguro durante el embarazo en pacientes con enfermedad inflamatoria intestinal?

    Directory of Open Access Journals (Sweden)

    Federico Argüelles-Arias

    2012-02-01

    foetus. In fact, in our study and in some cases, its withdrawal may lead to a worsening of the disease. However, further control studies are required with larger samples to obtain more representative findings.Introducción: la enfermedad inflamatoria intestinal (EII es un trastorno crónico que debuta en la mayoría de los casos durante la edad reproductiva. Existen pocos datos sobre la seguridad durante el embarazo de los tratamientos disponibles, entre ellos los denominados biológicos, y estos están basados en resultados de casos esporádicos. Objetivos: determinar la seguridad del tratamiento con infliximab (IFX durante el embarazo en mujeres con EII. Un segundo objetivo es observar el efecto que sobre la actividad de la enfermedad tiene el abandono del tratamiento. Material y métodos: se trata de un estudio retrospectivo en el que se incluyeron mujeres con EII embarazadas y que estaban en tratamiento con IFX durante el embarazo. Se incluyeron en el estudio a 5 hospitales de España. La actividad de la enfermedad se midió según el CDAI en la enfermedad de Crohn (EC y la de la colitis ulcerosa (CU según el índice de Truelove-Witts en cada trimestre del embarazo. La edad gestacional, el peso y las enfermedades del feto se determinaron al nacimiento. Resultados: se incluyeron doce mujeres con una edad media de 29 años, 4 diagnosticadas de CU y 8 de EC, con una duración media de la enfermedad de 7 años. Todas salvo una, que se diagnosticó durante el embarazo estaban siendo tratadas con IFX en el momento de la concepción. Seis pacientes recibieron el tratamiento de forma ininterrumpida durante todo el embarazo, 2 suspendieron el tratamiento de forma voluntaria y a tres se les suspendió el tratamiento en el tercer trimestre. Recibieron una dosis media de IFX de 400 mg cada 8 semanas. De las 6 pacientes que recibieron tratamiento continuo, el 50% se mantuvo en remisión. De las pacientes que abandonaron el tratamiento, un 83,3% (todas menos una presentaron un

  19. Estudio de la contaminación ambiental al interior de las viviendas en tres barrios de la capital dominicana

    OpenAIRE

    Georgina Espinal; Sócrates Nivar

    2004-01-01

    En todo el mundo, la finalidad primordial de los edificios es proteger al ser humano de los peligros y molestias del exterior y ofrecer un lugar seguro y cómodo para vivir y desarrollar sus actividades. EI tema de la calidad del ambiente al interior de las viviendas está siendo estudiado a profundidad desde distintos ángulos por los efectos adversos que causa a la salud humana. Organizaciones como la Oficina Panamericana de la Salud (OPS), preocupada por los indicadores q...

  20. Seguro-desemprego no Brasil: a possibilidade de combinar proteção social e melhor funcionamento do mercado de trabalho

    Directory of Open Access Journals (Sweden)

    Moisés Villamil Balestro

    2011-08-01

    Full Text Available A partir do Estado de Bem-Estar e de suas conexões com os dois principais tipos de economias capitalistas, Economia Liberal de Mercado e Economia de Mercado Coordenado, o artigo discute a experiência do Programa Seguro-Desemprego (PSD brasileiro. O Programa é visto como chave na política de bem-estar no Brasil e como possibilitador da combinação de proteção social e eficiência econômica. Nesse contexto, esta última é associada a um melhor funcionamento do mercado de trabalho. O argumento principal do artigo é que a integração do benefício seguro-desemprego, serviços de intermediação de mão de obra e qualificação profissional - os três principais componentes do PSD - promove a combinação de proteção social e desempenho econômico. Em geral, ambas têm sido vistas como uma relação entre alternativas excludentes (trade-off. Por meio da análise dos dados de uma pesquisa de avaliação da política pública do Programa Seguro-Desemprego do Brasil, o artigo indica as barreiras a serem transpostas para obter a integração entre os componentes do PSD. Resultados da pesquisa revelaram uma clivagem entre eles. A integração pode tornar-se um caminho na superação da relação de trade-off no Estado de Bem-Estar em desenvolvimento no Brasil. A experiência brasileira contribui para a discussão sobre o desenvolvimento de importantes políticas sociais que outros países também estão enfrentando.Stemming from the welfare state and its connection with the two main types of capitalist economies, Liberal Market Economy and Coordinated Market Economy, the paper discusses the experience of the Brazilian Unemployment Insurance Program. The Program is regarded as a key welfare policy in Brazil and one that enables the combination of social protection and economic performance. In this context, the latter is associated to a better functioning labour market. The main argument of this paper is that the integration of unemployment

  1. Impacto del Seguro Popular en el gasto catastrófico y de bolsillo en el México rural y urbano, 2005-2008 Impact of “Seguro Popular” on catastrophic and out-of-pocket health expenditures in rural and urban Mexico, 2005-2008

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    Sandra G Sosa-Rubí

    2011-01-01

    Full Text Available OBJETIVO. Estimar el efecto del Seguro Popular (SP sobre la incidencia del gasto catastrófico en salud (GCS y sobre el gasto de bolsillo en salud (GBS en el mediano plazo. MATERIAL Y MÉTODOS. Con base en la Encuesta de Evaluación del Seguro Popular (2005-2008, se analizaron los resultados del efecto del SP en la cohorte rural para dos años de seguimiento (2006 y 2008 y en la cohorte urbana para un año (2008. RESULTADOS. A nivel conglomerado no se detectaron efectos del SP. A nivel hogar se encontró que el SP tiene un efecto protector en el GCS y en el GBS en consulta externa y hospitalización en zonas rurales; y efectos significativos en la reducción de GBS en consulta externa en zonas urbanas. CONCLUSIONES. El SP se muestra como un programa efectivo para proteger a los hogares contra gastos de bolsillo por motivos de salud en el mediano plazo.OBJECTIVE. To estimate the effect of "Seguro Popular" (SP on the incidence of catastrophic health expenditure (CHE and out-of-pocket (OOP health expenditure in the medium term. MATERIAL AND METHODS. We used the 'Encuesta de Evaluación del SP' -SP Survey Evaluation- (2005-2008. We analyzed the SP effect on the rural cohort during two years of follow-up (2006 and 2008 and in the urban cohort during one year of follow-up (2008. RESULTS. At the local level (regional clusters we did not find an effect of the SP. At the household level we found a protective effect of SP on CHE and the OOP health payments in outpatient and hospitalization in rural areas; and a significant effect on the reduction of OOP health payments in outpatient services in urban zones. CONCLUSIONS. SP seems to be an effective program to protect poor household against out-of-pocket health expenditures in the medium term.

  2. Care needs of pregnant women with a private health insurance: a comprehensive social phenomenology approach Necesidades de cuidado de mujeres embarazadas que poseen seguro de salud: una aproximación comprensiva de la fenomenología social Necessidades de cuidado das mulheres grávidas que possuem convênio saúde: abordagem compreensiva da fenomenologia social

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    Miriam Aparecida Barbosa Merighi

    2007-10-01

    Full Text Available This study aimed to understand the meanings women who possess health plans hold regarding pregnancy and get to know their care needs in this phase of the vital cycle. It was based on the qualitative research of phenomenological inspiration. The discourses analysis was based on the sociologist and fenomenologist Alfred Schutz's thought. Having health plans and being attended in private institutions were defined as inclusion criteria. The following categories emerged from the discourses: having new responsibilities; experiencing a special situation; experiencing insecurity, anxiety and expectations; feeling limited; trusting the health professional. It was found, through the analysis of categories, that the experience of the pregnant women who participated in the study is similar to those who do not possess health plans. However, in the category "trusting the health professional" it was possible to perceive the importance of possessing health plan, which allows the intersubjectivity between the woman and the health professional.Este estudio tiene como objetivo comprender los significados que las mujeres que poseen seguro de salud atribuyen al embarazo y conocer sus necesidades de cuidado en esta fase del ciclo vital. El estudio fue fundamentado en la investigación cualitativa de inspiración fenomenológica. El pensamiento del sociólogo y fenomenólogo Alfred Schutz condujo el análisis de los discursos. Como criterio de inclusión, se definió que los individuos deberían ser atendidos en instituciones privadas y poseer seguro de salud. De las declaraciones surgieram las categorías: teniendo nuevas responsabilidades; vivenciando una situación especial; vivenciando inseguridad, ansiedad y expectativas; sintiéndose limitadas; confiando en el profesional de salud. Por medio del análisis de las categorías, fue constatado que la vivencia de las mujeres embarazadas que participaron de este estudio se mostró de forma similar a la de las mujeres

  3. ALS Association

    Science.gov (United States)

    ... toward a world without ALS! Walk to Defeat ALS® Walk to Defeat ALS® draws people of all ... We need your help. I Will Advocate National ALS Registry The National ALS Registry is a congressionally ...

  4. Alguns aspectos do comportamento sexual e prática de sexo seguro em homens do Município de São Paulo

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    Vieira Elisabeth Meloni

    2000-01-01

    Full Text Available A via heterossexual é atualmente o modo dominante de transmissão do HIV em mulheres no Brasil. Poucos estudos têm abordado o comportamento sexual masculino heterossexual. Um estudo realizado com 597 homens de 21 a 50 anos na cidade de São Paulo explorou vários aspectos relativos ao sexo mais seguro, tais como parceiras sexuais, conhecimento de Doenças Sexualmente Transmissíveis (DST/AIDS, percepção de risco e práticas auto protetoras, visando assim contribuir para a prevenção da AIDS. Os resultados mostram que, à semelhança de outros países, a proporção de homens que se engajam em práticas sexuais com outros homens é pequena (5%, que maior proporção de jovens têm um comportamento de auto proteção, seja em relação à múltiplas parcerias simultâneas ou ao uso do preservativo, que o conhecimento sobre a AIDS é muito difundido, mas sobre as DST é bem menor; que embora a percepção de risco aumente o comportamento de auto proteção, a presunção do comportamento da parceira influencia esta percepção de risco colocando em situação vulnerável homens e mulheres.

  5. Alguns aspectos do comportamento sexual e prática de sexo seguro em homens do Município de São Paulo

    Directory of Open Access Journals (Sweden)

    Elisabeth Meloni Vieira

    2000-12-01

    Full Text Available A via heterossexual é atualmente o modo dominante de transmissão do HIV em mulheres no Brasil. Poucos estudos têm abordado o comportamento sexual masculino heterossexual. Um estudo realizado com 597 homens de 21 a 50 anos na cidade de São Paulo explorou vários aspectos relativos ao sexo mais seguro, tais como parceiras sexuais, conhecimento de Doenças Sexualmente Transmissíveis (DST/AIDS, percepção de risco e práticas auto protetoras, visando assim contribuir para a prevenção da AIDS. Os resultados mostram que, à semelhança de outros países, a proporção de homens que se engajam em práticas sexuais com outros homens é pequena (5%, que maior proporção de jovens têm um comportamento de auto proteção, seja em relação à múltiplas parcerias simultâneas ou ao uso do preservativo, que o conhecimento sobre a AIDS é muito difundido, mas sobre as DST é bem menor; que embora a percepção de risco aumente o comportamento de auto proteção, a presunção do comportamento da parceira influencia esta percepção de risco colocando em situação vulnerável homens e mulheres.

  6. Proposal of a monitoring program of occupational exposure by incorporation of radioactive material for nuclear medicine services in the Caja Costarricense del Seguro Social

    International Nuclear Information System (INIS)

    A monitoring program of the occupational exposure by incorporation of radioactive material is proposed. Nuclear medicine services of the Caja Costarricense del Seguro Social (CCSS) are evaluated. The monitoring program is based on the provisions of the International Atomic Energy Agency and of study of nuclear medicine services of the CCSS. Radionuclides are determined for monitoring of the occupational exposure, according to the radioactive material that is worked in nuclear medicine services of the CCSS. The appropriate and alternative techniques are established for the monitoring of the occupational exposure by incorporation of radioactive material, depending on the type of radionuclide that is worked in nuclear medicine services. The worker occupationally exposed (TOE) should be subject of monitoring and how often should be realized the monitoring of the occupational exposure. The monitoring of the radiation by radioactive material must be applied to personnel working in radiopharmacies and the worker has carried out therapeutic procedures for handling of significant amounts of 131I. The calculation of the committed effective dose is proposed by incorporation of radioactive material with the TOE

  7. La problemática de la Caja Costarricense de Seguro Social desde la óptica de los determinantes de la salud

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    María L. Ávila-Agüero

    2013-09-01

    Full Text Available La problemática que rodea a la Caja Costarricense de Seguro Social (CCSS, va más allá de dificultades financieras: abarca un grave problema de gestión y entrabamiento burocrático que ha hecho de la institución, una estructura sumamente rígida, incapaz de satisfacer las necesidades y las demandas de la población con la agilidad requerida. La CCSS es quizá la “empresa” más grande de Centroamérica, con cerca de 55000 empleados, de los cuales un 10% son profesionales médicos. Es la institución que sostiene sobre sus hombros parte de la seguridad social de la que hoy se goza. Sin embargo, su funcionamiento y por ende su problemática, no debe analizarse de manera desvinculada del concepto de la producción social de la salud, ya que esta es un producto social.

  8. Evaluation of physical parameters and implementation of quality control in mammography diagnosed for a pilot of breast cancer screening in the Caja Costarricense de Seguro Social (CCSS)

    International Nuclear Information System (INIS)

    The purpose of mammography has been to provide the contrast between the lesion and adjacent healthy tissue of the breast. The quality control which should be performed in mammography services is essential to obtain the necessary contrast in mammography and thus achieve a prompt detection of breast lesions. The quality control program has helped to obtain exact diagnosis in mammography and has contributed to reduce mortality from breast cancer in Costa Rica. The Caja Costarricense de Seguro Social (CCSS) has sought to improve the quality of mammograms performed in the different health centers by implementing quality control programs in the services. The evaluation of the physical parameters has had as aim to perform an assessment of the equipment used in mammography facilities. The image quality, dosimetry, optical density, performance, accuracy and repeatability of voltage applied to the tube, filtration and Half-value layer in system of screen film mammography have been evaluated. The usefulness of quality control programs and needs of the services to implement a pilot plan for breast screening, can be seen when comparing the obtained results. The protocol of Mammography Quality Control, TECDOC 1517 from the International Atomic Energy Agency (IAEA), is implemented with this project and the associated software in four of the six hospitals evaluated in this study. (author)

  9. Oferta y demanda de servicios de salud en Manizales. Primer semestre 1995 al primer semestre 1997.

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    Alba Lucía Vélez Arango

    2009-10-01

    Full Text Available Se analizó el comportamiento de los indicadores de cobertura de afiliación al Sistema de Seguridad Social en Salud (SSSS, capacidad instalada de las instituciones del sector en términos de recursos físicos y humano, extensión e intensidad de uso de la consulta externa médica general, consulta odontológica y consulta de urgencia, al igual que la utilización de los servicios hospitalarios en términos de porcentaje ocupacional y productividad, en el período comprendido entre enero, 1995 y diciembre, 1996. En el período de estudio se observó en Manizales un aumento en la afiliación al SSSS en el régimen contributivo, pasando de 262,858 afiliados en 1995 a 311,901 a diciembre de 1996, lo cual representó un aumento de 18% con una cobertura aproximada de 80% del total de la población objetivo. En relación con la cobertura de afiliación en el Régimen Subsidiado a finales de 1996 se informó un total de 37,177 afiliados al SSSS en la ciudad de Manizales, representando una cobertura de 80% de la población identificada mediante el Sistema de Identificación de Población (SISBEN. En lo que tiene que ver con la extensión de uso se observó un aumento en la consulta odontológica, consulta externa médica general y consulta de urgencias durante el período 1995-1997. En relación con la intensidad de uso no se observó una variación significativa en la consulta externa médica general y de urgencias, mientras que la consulta odontológica presentó un ligero aumento en 1997. En cuanto a la utilización de los servicios de hospitalización se observaron diferencias apreciables entre las distintas Empresas Sociales del Estado existentes en la ciudad. Por último, los resultados encontrados en relación con la utilización de los servicios de hospitalización durante el período 1995-1997 tienen gran importancia para el análisis de la oportunidad y calidad de la atención en salud y en la planeación de la infraestructura de servicios

  10. Apego al tratamiento farmacológico en pacientes con diagnóstico de diabetes mellitus tipo 2

    OpenAIRE

    Durán-Varela Blanca Rosa; Rivera-Chavira Blanca; Franco-Gallegos Ernesto

    2001-01-01

    Objetivos. Establecer la frecuencia de apego al tratamiento farmacológico en pacientes diabéticos tipo 2, relacionarla con el control metabólico e identificar factores que influyen para el no apego. Material y métodos. Estudio transversal comparativo, efectuado en 150 pacientes con diabetes mellitus tipo 2 de la unidad de medicina familiar No. 33 del Instituto Mexicano del Seguro Social de Chihuahua, Chih., México, hecho entre 1997 y 1998. Se midió el apego con cuenta de tabletas en su domici...

  11. Atención de los pacientes con enfermedad arterial periférica en loshospitales de la Caja Costarricense de Seguro Social Care of Patients with Peripheral Artery Disease in the Hospitals of the Costarrican Social Security System

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    Gerardo Quirós-Meza

    2011-12-01

    Full Text Available Objetivo: Las enfermedades cardiovasculares constituyen la principal causa de muerte en Costa Rica. La Enfermedad Arterial Periférica (EAP, incluida en este grupo, representa en la mayoría de los casos la manifestación inicial por la cual el paciente consulta, es un indicador de la presencia de enfermedad en otros territorios vasculares, permite esta característica, estudiar al paciente antes de que aparezcan los síntomas en territorios de mayor riesgo. Su impacto sanitario y socioeconómico es de alta magnitud. No hay hasta la fecha estudios epidemiológicos en Costa Rica que permiten cuantificar la magnitud del problema y ayuden a establecer las pautas de actuación. El objetivo del presente estudio fue estimar la prevalencia, mortalidad y costo de la atención de la enfermedad arterial periférica en Costa Rica. Métodos: Estudio transversal, descriptivo, con base en la totalidad de casos hospitalizados por EAP en el año 2008 (962 egresos en la Caja Costarricense del Seguro Social, la cual atiende 96% de estos padecimientos. Asimismo se utilizaron las bases de defunciones del Instituto Nacional de Estadística y Censos del periodo 1997-2008 y la Encuesta Nacional de Salud del año 2006. Se utilizó el análisis de variancia para la comparación entre grupos. Resultados: La prevalencia de EAP es de 0.02% en menores de 50 años, 2.5% entre 50 y 60 años y 8.3% en mayores de 60 años. El análisis por género demostró predominio en el sexo masculino 55%. La edad promedio para las mujeres fue de 73 años (IC95%: 71,8 - 74,3 y para los hombres fue de 69,6 (IC95%. 68,7 - 71,0 y la tasa de mortalidad observada es de 0,6 por 100 000 habitantes, la edad promedio de muerte fue de 74 años. Los años de vida potencialmente perdidos se estiman en un promedio de 10,2 años. Conclusión: La prevalencia de EAP en Costa Rica es similar a la encontrada en países desarrollados, de ahí la importancia de organizar estrategias para hacer frente a esta

  12. Probabilidades de empleo-desempleo en Medellín: evidencia empírica para pensar un seguro de desempleo en Colombia

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    Probabilidades de empleo-desempleo en Medellín: evidencia empírica para pensar un seguro de desempleo en Colombia

    2013-03-01

    Full Text Available Objetivo: estimar las probabilidades de empleo-desempleo de la fuerza laboral del área metropolitana de Medellín-Colombia y analizar la duración del desempleo según características individuales y tiempo de búsqueda de empleo de un grupo de trabajadores cesantes de esta área en el año 2004, a fin de aportar evidencia científica para la toma de decisiones en materia de políticas de protección social. Metodología: estudio descriptivo de corte transversal que utilizó fuentes de información secundaria y primaria. Dos categorías centrales de análisis se definieron para los propósitos del estudio: fuerza laboral ocupada y fuerza laboral cesante. Para los fines pertinentes, se aplicaron técnicas de regresión logística y de estimación no paramétrica tipo Kaplan-Meier de tablas de supervivencia. Resultados: los cesantes de sexo femenino, con edad superior a los 44 años, educación media y experiencia laboral en los sectores de la industria y el comercio, fueron los que registraron mayores probabilidades de permanecer desempleados y, por tanto, mayor tiempo promedio de búsqueda de empleo. Discusión: los principales hallazgos del estudio y su relación con otros de carácter local y nacional evidencian que buena parte del desempleo en Colombia es de larga duración y este precedente debería orientar la discusión sobre los alcances y las características de un seguro de desempleo.

  13. O papel da Justiça nos planos e seguros de saúde no Brasil The role of the court system in regulating health insurance plans in Brazil

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    Danielle Conte Alves

    2009-02-01

    Full Text Available A grande quantidade de reclamações dos consumidores de planos e seguros privados de saúde se tornou freqüente no setor suplementar, com reflexos sobre o Poder Judiciário. Essa problemática fez surgir a necessidade de regulação desse mercado privado, que se iniciou em 1998, por meio da Lei nº. 9.656. Um dos desafios que a Agência Nacional de Saúde Suplementar (ANS enfrenta é a resistência das operadoras perante a legislação, além do fato de ainda existirem contratos não regidos pela referida lei. O objetivo do estudo foi analisar recursos de decisões judiciais que concederam ou não o pedido liminar da antecipação da tutela solicitado pelo consumidor de plano de saúde, julgados nos Tribunais de Justiça do Rio de Janeiro e de São Paulo. Os principais dados pesquisados foram: Tribunal que proferiu a decisão; réu; tema debatido; posicionamento de 1ª e de 2ª Instâncias e fundamentação jurídica. Verifica-se que o Poder Judiciário continua sendo um importante espaço de reivindicação dos consumidores de planos de saúde. O papel da ANS é importante para preencher algumas lacunas que ainda não foram solucionadas pela regulação do setor.Consumer complaints against private health insurance plans and companies in Brazil have become increasingly frequent in the country's "supplementary" (non-public health care sector, with numerous cases reaching the courts. The problem raised the need for regulation of this private market, which began in 1998, through Law no. 9.656. One of the challenges faced by the National Agency for Supplementary Health Care (ANS is resistance to the legislation by health insurance companies, besides the fact that there are still some contracts not covered by this law. The objective of the current study was to analyze health insurance policyholders' appeals against court rulings for or against injunctions concerning coverage, in cases heard by the courts in Rio de Janeiro and São Paulo. The main

  14. La empleabilidad y los beneficiarios del Seguro de Capacitación y Empleo en Mar del Plata Employability and beneficiaries of the Training and Employment Insurance in Mar del Plata

    OpenAIRE

    Ana Julia Atucha; María Eugenia Labrunée

    2011-01-01

    El objetivo de este documento es analizar si la participación de los beneficiarios del Partido de General Pueyrredon en el Seguro de Capacitación y Empleo implicó mejoras en su empleabilidad. En particular, se examinan las relaciones entre formación y empleo de este colectivo, como aproximación a la medición del impacto de esta política de mercado de trabajo en Mar del Plata. La información utilizada se basa en la "Encuesta de Informalidad y Beneficiarios de Programas Sociales" en el aglomera...

  15. Panorama epidemiológico de la mortalidad por cáncer en el Instituto Mexicano del Seguro Social: 1991-1995 Epidemiologic panorama of cancer mortality in the Mexican Institute of Social Security: 1991-1995

    OpenAIRE

    JORGE SALMERÓN-CASTRO; FRANCISCO FRANCO-MARINA; EDUARDO SALAZAR-MARTÍNEZ; EDUARDO CÉSAR LAZCANO-PONCE

    1997-01-01

    Objetivo. Describir el comportamiento de la mortalidad global por cáncer, así como la mortalidad específica para las principales neoplasias malignas en población adulta derechohabiente (DH) del Instituto Mexicano del Seguro Social (IMSS). Material y métodos. A partir de los registros oficiales de defunción y de la información sobre la población para los años 1991-1995, se estimaron las tasas anuales de mortalidad global y específica para las 10 principales neoplasias malignas por sexo, en may...

  16. Acesso ao aborto seguro: um fator para a promoção da equidade em saúde Access to safe abortion: a factor to promote equity in health

    OpenAIRE

    Ivani Bursztyn; Luiz Fernando Rangel Tura; Jéssica da Silva Correa

    2009-01-01

    Intensos movimentos no sentido de reconhecer o direito da mulher de decidir sobre a interrupção da gravidez provocaram ampla legalização do aborto entre países do norte, enquanto nos demais, devido à legislação restritiva, persistem as práticas inseguras. Visando a contribuir para o debate corrente no Brasil, apresenta-se uma sistematização dos aspectos tratados na literatura especializada quanto às implicações para a saúde pública impostas pela restrição de acesso ao aborto seguro. Foram pes...

  17. “Programa Seguro Médico Siglo xxi”: una propuesta de política pública para fortalecer el derecho a la salud de la primera infancia en México

    OpenAIRE

    José Caballero; Gonzalo Moctezuma; María Solange Maqueo Ramírez

    2014-01-01

    El presente artículo analiza los fundamentos jurídicos y la operación del “Programa Seguro Médico Siglo xxi”, con el objeto de elaborar una propuesta de política pública que permita fortalecer su integración en el sistema jurídico mexicano. Actualmente su funcionamiento está sujeto a disposiciones regulatorias de carácter anual, como son el Presupuesto de Egresos de la Federación y las Reglas de Operación de los programas que se derivan del mismo. Lo anterior rivaliza con la trascendencia que...

  18. Frequency of cancer in children residing in Mexico City and treated in the hospitals of the Instituto Mexicano del Seguro Social (1996–2001)

    International Nuclear Information System (INIS)

    The objective of this article is to present the frequency of cancer in Mexican children who were treated in the hospitals of the Instituto Mexicano del Seguro Social in Mexico City (IMSS-MC) in the period 1996–2001. The Registry of Cancer in Children, started in 1996 in the IMSS-MC, is an on-going, prospective register. The data from 1996 through 2001 were analyzed and the different types of cancer were grouped according to the International Classification for Cancer in Children (ICCC). From this analysis, the general and specific frequencies by age and by sex were obtained for the different groups of neoplasms. Also, the frequency of the stage of the disease that had been diagnosed in cases of children with solid tumors was obtained. A total of 1,702 new cases of children with cancer were registered, with the male/female ratio at 1.1/1. Leukemias had the highest frequency with 784 cases (46.1%) and, of these, acute lymphoblastic leukemias were the most prevalent with 614 cases (78.3%). Thereafter, in descending order of frequency, were tumors of the central nervous system (CNST) with 197 cases (11.6%), lymphomas with 194 cases (11.4%), germinal cell tumors with 110 cases (6.5%), and bone tumors with 97 cases (5.7%). The highest frequency of cancer was found in the group of one to four year-olds that had 627 cases (36.8%). In all the age groups, leukemias were the most frequent. In the present work, the frequency of Hodgkin's disease (~4%) was found to be lower than that (~10%) in previous studies and the frequency of tumors of the sympathetic nervous system was low (2.3%). Of those cases of solid tumors for which the stage of the disease had been determined, 66.9% were diagnosed as being Stage III or IV. The principal cancers in the children treated in the IMSS-MC were leukemias, CNST, and lymphomas, consistent with those reported by developed countries. A 2.5-fold reduction in the frequency of Hodgkin's disease was found. Of the children, the stage of

  19. Panorama epidemiológico de la mortalidad por cáncer en el Instituto Mexicano del Seguro Social: 1991-1995

    Directory of Open Access Journals (Sweden)

    SALMERÓN-CASTRO JORGE

    1997-01-01

    Full Text Available Objetivo. Describir el comportamiento de la mortalidad global por cáncer, así como la mortalidad específica para las principales neoplasias malignas en población adulta derechohabiente (DH del Instituto Mexicano del Seguro Social (IMSS. Material y métodos. A partir de los registros oficiales de defunción y de la información sobre la población para los años 1991-1995, se estimaron las tasas anuales de mortalidad global y específica para las 10 principales neoplasias malignas por sexo, en mayores de 20 años. Asimismo, se estimaron las tendencias nacionales y estatales para las principales neoplasias malignas para cada sexo por medio de regresión de Poisson. Se calcularon las diferencias de tasas de mortalidad específica para las dos principales neoplasias por sexo restando las tasas estatales a su respectiva tasa nacional en 1995. Resultados. La mortalidad global por cáncer en los hombres se incrementó de 76.2 en 1991, a 94.8 por 100 000 DH en 1995; entre las mujeres, ésta se incrementó de 85.6 a 105.8 por 100 000 DH, representando un incremento de 24.4 y de 24% en hombres y mujeres, respectivamente, durante el periodo de estudio. Entre los hombres las neoplasias de riñón, leucemia, páncreas, próstata y pulmón; y entre mujeres las de colon, mama, páncreas, leucemias e hígado, mostraron los incrementos más significativos. Conclusiones. En el IMSS es impostergable la conformación de un registro poblacional de cáncer que permita una mejor vigilancia epidemiológica de las neoplasias y una evaluación permanente del impacto de programas específicos para la prevención y control de este padecimiento en las instituciones.

  20. Uso de plantas medicinales en la atención primaria de salud en Paraguay: algunas consideraciones para su uso seguro y eficaz

    Directory of Open Access Journals (Sweden)

    Nélida Soria

    2015-08-01

    Full Text Available La incorporación de las plantas medicinales en la Atención Primaria de Salud (APS, constituye un gran desafío. Según la OMS, el uso de las plantas medicinales constituye una terapia más natural, más inocua, efectiva, de un costo racional y asequible a las poblaciones. Para establecer el uso seguro y eficaz es necesaria la correcta identificación taxonómica de las especies y el origen de las mismas. El objetivo del estudio fue identificar taxonómicamente las plantas medicinales utilizadas por pacientes que consultaron en los servicios de Unidad de Salud Familiar (USF de la IV Región Sanitaria del Guairá, Paraguay, de agosto a diciembre de 2.011, además del hábitat de procedencia de las mismas. Los pacientes fueron encuestados sobre las plantas medicinales utilizadas y el modo de empleo de las mismas. Las encuestas fueron acompañadas por muestras de las plantas medicinales utilizadas que posteriormente fueron identificadas taxonómicamente. Se identificaron 56 especies utilizadas para diversos fines medicinales, de las cuales las más mencionadas fueron menta’i (Mentha x piperita, ñangapiry (Eugenia uniflora, salviarã (Lippia alba, koku (Allophylus edulis, typycha curaty (Scoparia dulcis y ka’are (Chenopodium ambrosioides. Dos especies están consideradas en la literatura como tóxicas: “mil hombres” (Aristolochia triangularis y “cepacaballo” (Xanthium spinosum y una especie ka’oveti (Solanum granulosum-leprosum fue mencionada por primera vez para fines medicinales. Dos de las especies utilizadas son tóxicas y su empleo debe evitarse; de ahí la importancia de la correcta identificación taxonómica de las plantas medicinales utilizadas por la población paraguaya, de manera a dar a conocer su toxicidad potencial.

  1. All Sexed Up: a resposta de mulheres lésbicas negras jovens ao sexo (mais seguro em Johannesburg, África do Sul All Sexed Up: young black lesbian women's responses to safe(r sex in Johannesburg, South Africa

    Directory of Open Access Journals (Sweden)

    Zethu Matebeni

    2009-01-01

    Full Text Available A saúde sexual de mulheres lésbicas não é um tema frequentemente discutido em nossas sociedades. As questões de saúde da mulher são classificadas sob uma única categoria abrangente e excluem algumas das preocupações específicas de mulheres lésbicas, que, em geral, não têm o mesmo comportamento em relação à saúde que as mulheres heterossexuais. Esta tendência se deve a uma série de razões, entre as quais: falta de conhecimento sobre saúde e risco sexuais lésbicos, medo de estigmatização pelos prestadores de serviço e o processo de "se assumir" (coming out para esses profissionais, que além de desconhecido, é, algumas vezes, hostil. Além disso, a pouca pesquisa sobre lésbicas e saúde lésbica na África do Sul torna difícil para as mulheres que assim se autoclassificam saberem que questões de saúde sexual as afetam especificamente, bem como onde e de que forma lidar com certos problemas. Existe uma percepção equivocada e generalizada de que questões de sexo seguro não afetam mulheres lésbicas tanto quanto mulheres heterossexuais. O artigo apresenta as visões de um grupo de mulheres de 18 a 35 anos que se autoidentificam como lésbicas na África de Sul. Por meio de questionários autoaplicados e discussões, essas mulheres partilham suas experiências e pensamentos sobre sexo lésbico (seguro e como elas têm-se relacionado e continuam a se relacionar sexualmente com outras mulheres no momento de HIV e Aids.Lesbian women's health and sexual health is a theme not generally discussed in our societies. Women's' health issues are generally classified under one umbrella, and exclude some of the concerns specific to lesbian women. Lesbian women in general do not have the same health-seeking behaviours as heterosexual women. This is due to a number of reasons including: lack of knowledge about lesbian sexual health and sexual risk, fear of stigmatization by service providers, and the "coming out" process to

  2. Ensino/aprendizagem de espanhol em Porto Seguro/BA: investigação acerca das significações docentes sobre o papel da epistemologia do educar em língua estrangeira para a formação do sujeito capaz de cruzar fronteiras culturais

    OpenAIRE

    Elissandro dos Santos Santana

    2012-01-01

    Este trabalho é fruto de uma pesquisa realizada nos meses de agosto e setembro de 2011 em três escolas de Porto Seguro em torno do seguinte tema: ensino/aprendizagem de espanhol em Porto Seguro/BA: investigação acerca das significações docentes sobre o papel da epistemologia do educar em língua estrangeira para a formação do sujeito capaz de cruzar fronteiras culturais. Na pesquisa de campo, fora aplicado um questionário semi-estruturado a quatro professores de língua espanhola, grupo amostra...

  3. El trabajo nocturno y sus implicaciones en la salud de médicos, enfermeras y oficiales de seguridad de los hospitales de la Caja Costaricense del Seguro Social en Costa Rica

    Directory of Open Access Journals (Sweden)

    Ana Imelda Barahona Madrigal

    2013-03-01

    Full Text Available En el presente trabajo se analiza la jornada laboral nocturna y las implicaciones que ésta tiene en la salud de los trabajadores de una institución que por sus características requiere atención las 24 horas, los siete días a la semana, como lo es la Caja Costarricense del Seguro Social. Para ello se escogió una muestra de médicos, enfermeras y oficiales de seguridad y se les interrogó acerca de las enfermedades que padecían, para tratar de establecer su relación con la jornada nocturna.This paper analyzes the night work and its implications on the health of workers in an institution which by its nature requires 24-hour care, seven days a week, as is La Caja Costarricense de Seguro Social. For this, it was chosen a sample of doctors, nurses and security officers and they were questioned about illnesses they had, to try to establish its relationship with the night shift.

  4. Challenging homophobia in schools: policies and programs for safe school climates Desafiando a homofobia nas escolas: políticas e programas para climas escolares seguros

    Directory of Open Access Journals (Sweden)

    Stephen T. Russell

    2011-04-01

    ésbicas gays, bissexuais e transgêneros (LGBT. Este trabalho deixa claro que a escola e as culturas jovens contemporâneas são caracterizadas por normas rígidas de gênero e sexualidade (incluindo a homofobia e expectativas a respeito da masculinidade, feminilidade e heterossexualidade; sendo que o bem estar de estudantes que não se conformam ou desafiam estas normas é muitas vezes prejudicado. Em anos recentes o foco de análise deslocou-se da situação de cada aluno para o reconhecimento de que o contexto e clima escolares precisam ser entendidos melhor para prevenir o bullying motivado por algum viés e promover a segurança na escola e o bem estar dos estudantes. Durante a última década diversos estudos identificaram políticas, programas e práticas educacionais específicas que promovem climas escolares seguros. Neste artigo reviso o que se sabe sobre políticas e programas que promovem a segurança para estudantes LGBT bem como para estudantes heterossexuais nas escolas. Um corpo crescente de trabalhos indica que as seguintes estratégias estão associadas com climas escolares mais seguros para estudantes LGBT: regulamento detalhado de não-discriminação e anti-bullying; intervenção dos professores quando o assédio ocorre; disponibilidade de informação e apoio sobre questões LGBT para os estudantes; presença de grupos de apoio ou clubes com base na escola (frequentemente denominados "alianças gay-hétero"; e inclusão curricular de pessoas e questões LGBT. No contexto desta pesquisa, discuto vários temas chave a serem considerados por educadores, legisladores e acadêmicos.

  5. Apego al tratamiento farmacológico en pacientes con diagnóstico de diabetes mellitus tipo 2 Pharmacological therapy compliance in diabetes

    OpenAIRE

    Blanca Rosa Durán-Varela; Blanca Rivera-Chavira; Ernesto Franco-Gallegos

    2001-01-01

    Objetivos. Establecer la frecuencia de apego al tratamiento farmacológico en pacientes diabéticos tipo 2, relacionarla con el control metabólico e identificar factores que influyen para el no apego. Material y métodos. Estudio transversal comparativo, efectuado en 150 pacientes con diabetes mellitus tipo 2 de la unidad de medicina familiar No. 33 del Instituto Mexicano del Seguro Social de Chihuahua, Chih., México, hecho entre 1997 y 1998. Se midió el apego con cuenta de tabletas en su domici...

  6. Cost minimization analysis at the Hospital Mexico in the Caja Costarricense de Seguro Social for the accommodation of patients with radiotherapy with linear accelerator: shelter vs transfers

    International Nuclear Information System (INIS)

    Patients with oncological pathology have attended daily in sessions for several weeks in the linear accelerator radiation therapy. Persons subject to this intervention have moved to the Hospital Mexico of the social security of Costa Rica, place that centralizes this treatment. The Caja Costarricense de Seguro Social (CCSS) has considered two options depending on the place of origin of users: bear the costs of commuting from the area of habitual residence, or place them temporarily in a shelter provided by the institution; the CCSS has chosen the first alternative. This research has consisted of a cost-minimization analysis between these two alternatives. The study population are patients with oncological pathology attending sessions of radiotherapy with linear accelerator at the Hospital Mexico in the first half of 2009 using ambulances of Cruz Roja Costarricense. The size of the study population is 107 persons, the total number of transferred recorded in the Fondo Rotatorio de Operaciones of Hospital Mexico is 998. Patients came from five regions and twenty areas of health according to the geographical division of the CCSS. The variables included have been: cost per day by way of transfer, which involves the distance to the radiotherapy center of Hospital Mexico and the cost of the rate at Cruz Roja ambulance per Km (326.86 colons, according to the agreement CCSS-Cruz Roja in June 2009) estimated daily cost of lodging in a shelter, and the reason daily cost of relocation / daily cost of shelter. The cost of shelter includes food and were used data from the company International Medical Suppliers S. A. as a basis for estimating the daily cost, the price fixed by the company was 65 dollars a day, and the conversion into colons exchange rate as established by the Banco Central de Costa Rica; dated April 30, 2010, the amount has been 33.542.60 colons. The reason for each area of health was given by the ratio of the average daily cost in colons by way of ambulance of

  7. Estimación de la siniestralidad no declarada en el seguro de automóviles: una aplicación a través de modelos de recuento.

    Directory of Open Access Journals (Sweden)

    Melgar Hiraldo, María del Carmen

    2008-01-01

    Full Text Available RESUMENEl análisis de la siniestralidad en el seguro de automóviles puede ser de extraordinario interés, dado el importante peso de este ramo en el conjunto de la actividad aseguradora. La estimación econométrica del número de siniestros, a partir de la información manejada por las compañías sobre las características de sus clientes y vehículos, podría arrojar resultados relevantes. Los modelos de recuento inflados de ceros aparecen como herramientas adecuadas para este fin. Su aplicación no sólo permite estimar el número registrado de siniestros, sino también la siniestralidad “oculta”, esto es, aquélla que no es declarada a las compañías.

  8. Métodos econométricos para la valoración cualitativa y cuantitativa del daño corporal en el seguro del automóvil

    OpenAIRE

    Santolino Prieto, Miguel Ángel

    2007-01-01

    [spa] DE LA TESIS:La compensación por daños corporales representa más del 60% del coste total de los siniestros en el seguro de responsabilidad civil del automóvil en el mercado español. El continuo encarecimiento de estos siniestros es un hecho que se da en la mayoría de economías desarrolladas. Las causas de este incremento debemos buscarlas en factores económicos, sociales y legales, como son, entre otros, la propensión a demandar de los ciudadanos, la evolución de los gastos médicos, el n...

  9. Comportamento do consumidor: procura de informação e intenção de compra online de seguro automovel - aplicação em portugal

    OpenAIRE

    Castro, Carla

    2012-01-01

    Doutoramento em Gestão Empresarial Aplicada/ Classificação: M31, M10, C39 A distribuição no setor segurador está repleta de desafios. Novas tendências de consumo, a internet e a utilização de distintos canais ao longo das etapas do processo de tomada de decisão de compra, têm um impacto relevante da decisão de compra e no processo de compra de seguro automóvel. A adoção de novos comportamentos pelo consumidor, o aumento dos “clientes híbridos” e a estratégia de distribuição ...

  10. Impacto de un programa de atención domiciliaria al enfermo crónico en ancianos: calidad de vida y reingresos hospitalarios Impact of the program home care for the chronically ill for elderly: quality of life and hospital readmissions

    OpenAIRE

    María Claudia Espinel-Bermúdez; Sergio Sánchez-García; Teresa Juárez-Cedillo; José Juan García-González; Álvaro Viveros-Pérez; Carmen García-Peña

    2011-01-01

    OBJETIVO: Evaluar el impacto del programa Atención Domiciliaria al Enfermo Crónico (ADEC) comparado con la atención habitual (AH) a ancianos con dependencia funcional, derechohabientes del Instituto Mexicano del Seguro Social (IMSS). MATERIAL Y MÉTODOS: Cohorte prospectiva a tres meses a partir del egreso hospitalario en dos hospitales de la Ciudad de México. Se ingresaron 130 ancianos con dependencia funcional, 70 insertados al programa ADEC y 60 con atención habitual. Se midió impacto en re...

  11. Derecho para economistas principiantes : problema de coordinación, planificación y evaluación de la asignatura "Introducción al Derecho" en los nuevos grados de la Facultad de Económicas y Empresariales.

    OpenAIRE

    Villarejo Galende, Helena; Calonge Velázquez, Antonio

    2011-01-01

    Producción Científica Nuestro proyecto de innovación docente se aplicó a la asignatura de “Introducción al Derecho” impartida por primera vez en los nuevos Grados de Administración y Dirección de Empresas (ADE), Economía (ECO), Marketing e Investigación de Mercados (MIM) y Finanzas, Banca y Seguros (FBS). Se elaboraron cuadernillos de materiales didácticos que fueron puestos a disposición de los alumnos al comienzo del curso, cuyo contenido era el siguiente: 1) Presentaci...

  12. La declaración de los riesgos en los contratos de seguros. Estudio de los ordenamientos jurídicos español, uruguayo y argentino

    OpenAIRE

    Bado Cardozo, Virginia Susana

    2014-01-01

    En la tesis doctoral se realiza un estudio de Derecho comparado entre las legislaciones, jurisprudencia y doctrina, uruguaya, argentina y española, sin perjuicio de relacionar algunas soluciones particulares a problemas puntuales que se han manejado en Francia, Italia, Bélgica, Estados Unidos, Inglaterra y Portugal. El trabajo ha sido dividido en tres partes. La primera parte introduce al estudio del riesgo. Allí se reseñan las principales doctrinas elaboradas en torno al concepto de ri...

  13. AL Amyloidosis

    Directory of Open Access Journals (Sweden)

    Desport Estelle

    2012-08-01

    Full Text Available Abstract Definition of the disease AL amyloidosis results from extra-cellular deposition of fibril-forming monoclonal immunoglobulin (Ig light chains (LC (most commonly of lambda isotype usually secreted by a small plasma cell clone. Most patients have evidence of isolated monoclonal gammopathy or smoldering myeloma, and the occurrence of AL amyloidosis in patients with symptomatic multiple myeloma or other B-cell lymphoproliferative disorders is unusual. The key event in the development of AL amyloidosis is the change in the secondary or tertiary structure of an abnormal monoclonal LC, which results in instable conformation. This conformational change is responsible for abnormal folding of the LC, rich in β leaves, which assemble into monomers that stack together to form amyloid fibrils. Epidemiology AL amyloidosis is the most common type of systemic amyloidois in developed countries with an estimated incidence of 9 cases/million inhabitant/year. The average age of diagnosed patients is 65 years and less than 10% of patients are under 50. Clinical description The clinical presentation is protean, because of the wide number of tissues or organs that may be affected. The most common presenting symptoms are asthenia and dyspnoea, which are poorly specific and may account for delayed diagnosis. Renal manifestations are the most frequent, affecting two thirds of patients at presentation. They are characterized by heavy proteinuria, with nephrotic syndrome and impaired renal function in half of the patients. Heart involvement, which is present at diagnosis in more than 50% of patients, leading to restrictive cardiopathy, is the most serious complication and engages prognosis. Diagnostic methods The diagnosis relies on pathological examination of an involved site showing Congo red-positive amyloid deposits, with typical apple-green birefringence under polarized light, that stain positive with an anti-LC antibody by immunohistochemistry and

  14. Barreras y facilitadores para el uso de los servicios de primer nivel de atención de la Caja Costarricense de Seguro Social (CCSS por parte de la población de uno a menos de 6 años en los sitios centinela de Costa Rica

    Directory of Open Access Journals (Sweden)

    Tatiana Martínez Jaikel

    2014-01-01

    Full Text Available Objetivos: Determinar las barreras y facilitadores para el uso de los servicios de primer nivel de atención de la Caja Costarricense de Seguro Social (CCSS por parte de la población de uno a menos de 6 años en las comunidades de Damas de Desamparados, San Antonio de Nicoya y territorio indígena de La Casona de Coto Brus.Métodos: Metodología cualitativa. La información se obtuvo de tres fuentes de datos: entrevistas semi-estructuradas, tanto con las madres o encargadas de los niños, como con los funcionarios a cargo de las consultas en los Equipos Básicos de Atención en Salud (EBAIS, y observaciones de las consultas en los EBAIS.Resultados: Las razones de uso están relacionadas, en los tres sitios, con los beneficios que les trae a las usuarias la consulta, el buen trato del personal y la comodidad de las instalaciones de los EBAIS. Mientras que las razones de no uso comunes están asociadas al concepto de salud ligado a ausencia de enfermedad, la falta de información y problemas económicos de las usuarias, la no asignación de citas después del año de edad y la calidad de la atención recibida. Las razones relacionadas con el contexto, como las largas distancias, las limitaciones en cuanto a medios de transporte, cobran gran relevancia principalmente en la zona rural y en el territorio indígena.Conclusiones: El colocar la asistencia a cita control de esta población dentro de los compromisos de gestión de la CCSS, asignar la cita previamente y designar el equipo de atención en los EBAIS tomando en cuenta no una norma general, sino las condiciones particulares de cada sitio, son medidas que garantizarían el aumento de la cobertura de la atención integral a esta población.

  15. Barreras y facilitadores para el uso de los servicios de primer nivel de atención de la Caja Costarricense de Seguro Social (CCSS por parte de la población de uno a menos de 6 años en los sitios centinela de Costa Rica

    Directory of Open Access Journals (Sweden)

    Tatiana Martínez Jaikel

    2014-01-01

    Full Text Available Objetivos: Determinar las barreras y facilitadores para el uso de los servicios de primer nivel de atención de la Caja Costarricense de Seguro Social (CCSS por parte de la población de uno a menos de 6 años en las comunidades de Damas de Desamparados, San Antonio de Nicoya y territorio indígena de La Casona de Coto Brus. Métodos: Metodología cualitativa. La información se obtuvo de tres fuentes de datos: entrevistas semi-estructuradas, tanto con las madres o encargadas de los niños, como con los funcionarios a cargo de las consultas en los Equipos Básicos de Atención en Salud (EBAIS, y observaciones de las consultas en los EBAIS. Resultados: Las razones de uso están relacionadas, en los tres sitios, con los beneficios que les trae a las usuarias la consulta, el buen trato del personal y la comodidad de las instalaciones de los EBAIS. Mientras que las razones de no uso comunes están asociadas al concepto de salud ligado a ausencia de enfermedad, la falta de información y problemas económicos de las usuarias, la no asignación de citas después del año de edad y la calidad de la atención recibida. Las razones relacionadas con el contexto, como las largas distancias, las limitaciones en cuanto a medios de transporte, cobran gran relevancia principalmente en la zona rural y en el territorio indígena. Conclusiones: El colocar la asistencia a cita control de esta población dentro de los compromisos de gestión de la CCSS, asignar la cita previamente y designar el equipo de atención en los EBAIS tomando en cuenta no una norma general, sino las condiciones particulares de cada sitio, son medidas que garantizarían el aumento de la cobertura de la atención integral a esta población.

  16. Aplicación de la teoría de colas a la atención al público de una correduría de seguros

    OpenAIRE

    González Vera, Pedro Salvador

    2013-01-01

    En la realidad empresarial lo ideal es que cada elemento de nuestra empresa se encuentre optimizado, llamando optimizar a planificar una actividad de modo que se obtengan los mejores resultados posibles. Parte de estos elementos que deben ser optimizados son los fenómenos de espera que se generan en nuestra actividad. Dichos fenómenos son muy usuales en la vida cotidiana, ya que estamos acostumbrados a esperar y esto nos parece natural en gran cantidad de ocasiones, para pagar en un supermerc...

  17. Resilient planning for sporting mega-events: designing and managing safe and secure urban places for London 2012 and beyond Planejamento resiliente para megaeventos esportivos: planejando e gerindo lugares seguros para Londres 2012 e além

    Directory of Open Access Journals (Sweden)

    Pete Fussey

    2011-12-01

    Full Text Available Since the 1960s both regeneration and security have been prominent themes in Olympic planning. However, this paper argues that the prominence given to post event “legacies” in London’s bid to host the 2012 Summer Games has fomented a merger of these hitherto distinct ambitions oriented around notions of “resilience”. In addition to identifying this merger, based on analysis of planning for the 2012 Games the paper sets out its component features and considers a range of key implications. These include the accommodation of Olympic security amid shifting national security arrangements and, at a local level, the impact and importance of the 2011 London riots on Olympic safety and security processes. Organised over four areas of discussion – the first three comprising of the coupling of spatial strategies of resilient planning and design with concerns for security; the temporal framework of such approaches; analysis of the altered physical and institutional landscape of London ahead of the 2012 Olympic Games – the paper concludes by identifying and discussing the ways in which urban rejuvenation and securitisation which are increasingly being combined into resilient designs and master plans in the Olympic context and, crucially, standardised, exported and transferred to new urban hosts of similar events.

  18. Resilient planning for sporting mega-events: designing and managing safe and secure urban places for London 2012 and beyond Planejamento resiliente para megaeventos esportivos: planejando e gerindo lugares seguros para Londres 2012 e além

    OpenAIRE

    Pete Fussey; Jon Coaffee

    2011-01-01

    Since the 1960s both regeneration and security have been prominent themes in Olympic planning. However, this paper argues that the prominence given to post event legacies in Londons bid to host the 2012 Summer Games has fomented a merger of these hitherto distinct ambitions oriented around notions of resilience. In addition to identifying this merger, based on analysis of planning for the 2012 Games the paper sets out its component features and considers a range of key implications. These inc...

  19. Un modelo de e-commerce, que facilite la atención integral del consumidor final de seguros vía internet en colombia

    OpenAIRE

    ARANGO SERNA, , MARTÍN DARIO; PEREZ ORTEGA, GIOVANNY; VÉLEZ MEJÍA, DIANA LORENA

    2011-01-01

    Ante la gran competencia que enfrentan las compañías aseguradoras, estas se han enfocado en la venta multiproducto y multicanal, para desarrollar estrategias que les permita reducir procesos, incrementar la eficiencia, integrar sistemas, mejorar la relación con sus clientes, minimizar costos, e incrementar ganancias. Una de las ventajas principales de internet, que la diferencia del resto de canales, es la posibilidad de efectuar un acercamiento real al cliente. El marketing clásico se basa e...

  20. Aprendizaje por refuerzo seguro para enseñar a un robot humanoide a caminar más rápido

    OpenAIRE

    Acera Bolaños, Daniel

    2013-01-01

    Enseñar a un robot humanoide a caminar es un problema abierto y desafiante. Los comportamientos clásicos de caminar habitualmente requieren la puesta a punto de muchos parámetros de control (longitud de paso, velocidad, frecuencia, etc). Encontrar una configuración inicial o básica de estos parámetros no es complicado, pero optimizarla para un objetivo (por ejemplo, caminar rápido) no es tan sencillo, ya que puede hacer caer al robot humanoide provocando daños, en caso de un...

  1. Gestión de la confianza en redes colaborativas centradas en el intercambio seguro de alertas para la detección de ataques distribuidos

    OpenAIRE

    Gil Pérez, Manuel

    2015-01-01

    Las alertas que los IDSs necesitan intercambiar para la detección de ataques distribuidos deben ser evaluadas antes de que sean aceptadas como verdaderas. Comportamientos maliciosos de un IDS, enviando alertas fraudulentas, haría sospechar al sistema de intentos de alteración de sus políticas de seguridad, cuando no es así. La gestión de la confianza para modelar el comportamiento de los IDSs se convierte en una herramienta obligatoria en la evaluación de las alertas. Además, también se deben...

  2. El reembolso de los costos de prevención en el seguro de responsabilidad civil en el derecho inglés

    Directory of Open Access Journals (Sweden)

    Tomás Restrepo Rodríguez

    2011-07-01

    Full Text Available La investigación desarrolla la pregunta de si la póliza de responsabilidad civil cubre los costos que asume el asegurado para prevenir la ocurrencia del siniestro. Se analiza, de un lado, los argumentos que conducen a la jurisprudencia inglesa a negar dicho cubrimiento y, del otro, se exploran justificaciones de naturaleza contractual y extracontractual para afirmar que el asegurado debe ser reembolsado. Finalmente, se pone de presente la necesidad en el derecho inglés de una norma imperativa que obligue al asegurado a cubrir los costos de prevención.

  3. La responsabilidad civil derivada de la investigación clínica en los servicios asistenciales de la Caja Costarricense del Seguro Social (C.C.S.S.

    Directory of Open Access Journals (Sweden)

    José Fabio Oconitrillo Tenorio

    2002-09-01

    Full Text Available En Costa Rica se llevan a cabo investigaciones clínicas en los servicios asistenciales de la Caja Costarricense del Seguro Social, sin cumplirse con los requisitos establecidos en nuestro ordenamiento jurídico. Así, debe revisarse la regulación existente sobre el factor indemnizatorio que los participantes de la investigación clínica -patrocinador, investigador, institución pública o privada- deben cumplir y observar como elemento configurante del consentimiento informado, de forma tal que no se lleve a cabo la investigación si no se cuenta con una póliza obligatoria por parte de los promoventes, que cubra las diversas eventualidades de lesión y muerte del sujeto a experimentación.In Costa Rica, several clinic investigations have taken place in the medical services of the Social Security without filling the requirements that our legal system establishes. lt is necessary that the regulation of the indemnizatory factor that the people involved in the investigation, like the host, investigator, public or private institutions, have to fulfill and regard, as a configuring element, the acknowledged. information, in a way that the investigation cannot be made if they do not give the respective accountability to pay for eventual mistakes, lesions and ever death of the subject of the investigation.

  4. Violencia contra la mujer: conocimiento y actitud del personal médico del Instituto Mexicano del Seguro Social, Morelos, México Violence against women: knowledge and attitudes of healthcare providers at the Mexican Institute of Social Security in Morelos, Mexico

    Directory of Open Access Journals (Sweden)

    Pablo Méndez-Hernández

    2003-12-01

    Full Text Available OBJETIVO: Evaluar la actitud afectiva, cognoscitiva y conductual del personal médico del Instituto Mexicano del Seguro Social del estado de Morelos, México, hacia la identificación y canalización de mujeres maltratadas que acuden a consulta médica, así como identificar las barreras institucionales y de la práctica médica que dificultan el manejo dentro de los servicios de salud de las mujeres maltratadas. MATERIAL Y MÉTODOS: De septiembre a diciembre de 1999 se realizó un estudio transversal mediante un cuestionario de autoaplicación que se proporcionó a 269 médicos y médicas generales, especialistas y estudiantes de pre y posgrado que laboran en 30 unidades de salud, de primer y segundo nivel de atención, del Instituto Mexicano del Seguro Social del estado de Morelos. El instrumento se diseñó para evaluar el nivel de conocimiento sobre violencia doméstica y la actitud del personal médico hacia la atención, en la consulta, de mujeres maltratadas. Se construyó un índice de conocimiento, además de un análisis multivariado de los datos. RESULTADOS: El 90% de los entrevistados nunca ha recibido capacitación en violencia contra la mujer. La actitud afectiva y cognoscitiva del personal médico que recibió capacitación sobre el tema fue más favorable hacia la identificación y atención de mujeres maltratadas que llegan a consulta médica, en comparación con los que no la recibieron. Sobre el nivel de conocimiento acerca del tema, 21% de los entrevistados mostró un nivel bajo, 63% medio y 16% alto. En el personal médico, con nivel de conocimiento medio y alto, se observó 2.1 y 6 veces -respectivamente- una actitud afectiva más favorable respecto a la identificación y canalización de casos de mujeres maltratadas en comparación con el personal con nivel de conocimiento bajo. Las médicas mostraron 2.3 veces mejor actitud para identificar y canalizar mujeres maltratadas. El personal médico con interés por capacitarse

  5. Las Estrategias de Seguridad: instrumentos para la lucha por un mundo más libre y seguro. Una visión desde España

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    Joan Lluís Pérez Francesch

    2015-01-01

    Full Text Available Las estructuras estatales deben adaptarse al actual mundo globalizado. La cooperación y la gestión supraestatal son así imprescindibles para hacer frente a las amenazas de todo tipo a la libertad y a la seguridad de las perso-nas, de las organizaciones y de los propios Estados. Además, los conceptos de seguridad integral y de seguridad humana expresan la necesidad de rea-lizar un tratamiento exhaustivo de esas amenazas. Los atentados del 11-Sinician un imaginario colectivo en el que la lucha contra la inseguridad global deviene en ocasiones una obsesión. Ante esta situación proponemos que no puede olvidarse el primado de los principios que han inspirado el Es-tado de Derecho como producto civilizatorio, que es ineludible, a no ser que caigamos en la defensa de la barbarie para luchar contra la misma barbarie. Asimismo, la inseguridad se presenta hoy como una amenaza difusa, que puede tener su origen lejos de las fronteras estatales, siendo realmente una realidad transnacional. A este propósito sirven las llamadas “estrategias de seguridad”, que se analizan en este trabajo.

  6. Cost-effectiveness analysis for joint pain treatment in patients with osteoarthritis treated at the Instituto Mexicano del Seguro Social (IMSS: Comparison of nonsteroidal anti-inflammatory drugs (NSAIDs vs. cyclooxygenase-2 selective inhibitors

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    Mejía-Aranguré Juan

    2008-11-01

    Full Text Available Abstract Background Osteoarthritis (OA is one of the main causes of disability worldwide, especially in persons >55 years of age. Currently, controversy remains about the best therapeutic alternative for this disease when evaluated from a cost-effectiveness viewpoint. For Social Security Institutions in developing countries, it is very important to assess what drugs may decrease the subsequent use of medical care resources, considering their adverse events that are known to have a significant increase in medical care costs of patients with OA. Three treatment alternatives were compared: celecoxib (200 mg twice daily, non-selective NSAIDs (naproxen, 500 mg twice daily; diclofenac, 100 mg twice daily; and piroxicam, 20 mg/day and acetaminophen, 1000 mg twice daily. The aim of this study was to identify the most cost-effective first-choice pharmacological treatment for the control of joint pain secondary to OA in patients treated at the Instituto Mexicano del Seguro Social (IMSS. Methods A cost-effectiveness assessment was carried out. A systematic review of the literature was performed to obtain transition probabilities. In order to evaluate analysis robustness, one-way and probabilistic sensitivity analyses were conducted. Estimations were done for a 6-month period. Results Treatment demonstrating the best cost-effectiveness results [lowest cost-effectiveness ratio $17.5 pesos/patient ($1.75 USD] was celecoxib. According to the one-way sensitivity analysis, celecoxib would need to markedly decrease its effectiveness in order for it to not be the optimal treatment option. In the probabilistic analysis, both in the construction of the acceptability curves and in the estimation of net economic benefits, the most cost-effective option was celecoxib. Conclusion From a Mexican institutional perspective and probably in other Social Security Institutions in similar developing countries, the most cost-effective option for treatment of knee and/or hip OA

  7. Diálisis peritoneal automática adaptada: un método de prescripción eficaz, eficiente y seguro

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    Sergi Aragó Sorrosal

    2014-09-01

    Full Text Available El objetivo del trabajo es analizar los resultados obtenidos tras la introducción de la modalidad de diálisis peritoneal automática adaptada, usando bicarbonato puro como agente tampón, en un grupo de pacientes en programa de diálisis peritoneal automática convencional. Estudio de diseño cuasi experimental, que se realizó entre los meses de febrero y diciembre de 2013, en la unidad de diálisis peritoneal del Hospital Clínic de Barcelona. Los sujetos de estudio fueron 12 pacientes, 7 mujeres y 5 hombres, de dicha unidad en modalidad de diálisis peritoneal automática convencional. Edad media 58±12 años (rango: 34-71. El estudio consistió en comparar dos modalidades de diálisis peritoneal automática. Se inició el estudio con prescripción de diálisis convencional, durante tres meses, para cambiar a modalidad de diálisis adaptada durante el mismo intervalo de tiempo. Y finalizarlo, con tres meses de pauta de diálisis convencional. Se prescribió el mismo volumen total de líquido de diálisis y tiempo de sesión, para cada paciente en ambas modalidades, variando los volúmenes y tiempos de permanencia en función de la modalidad. Se utilizó solución de diálisis con bicarbonato puro y glucosa 1,5%. Todos los pacientes, con día seco. Se monitorizaron las variables al inicio del estudio, y en cada cambio de prescripción. Los resultados obtenidos en diálisis convencional: Kt/v=2,3±0,2, aclaramiento de creatinina=63±8litros/semana, y ultrafiltración=842±110ml. En diálisis adaptada, Kt/v=2,8±0,2, aclaramiento de creatinina=74±9litros/semana, y ultrafiltración=982±123ml. La diálisis adaptada permite obtener una adecuada eficacia de tratamiento, mejora los parámetros de adecuación de diálisis y ultrafiltración; siendo segura y cómoda para el paciente.

  8. All About ALS

    Science.gov (United States)

    ... please review our exit disclaimer . Subscribe All About ALS Understanding a Devastating Disorder In the summer of ... of research dollars—for a fatal disease called ALS. ALS stands for amyotrophic lateral sclerosis. It’s also ...

  9. Diseño y cálculo de una plataforma off-shore para facilitar el acceso al mar de personas con movilidad reducida.

    OpenAIRE

    Larred Plaza, Guillem

    2015-01-01

    Este proyecto tiene como misión aportar una mejora de vida a aquellos colectivos que padecen algún tipo de minusvalía, expandiendo sus límites de autonomía hasta aguas someras, donde poder disfrutar de un baño en el mar. Consecuentemente, también supondrá un acceso más fácil y seguro para aquellas personas que la entrada al mar les representa una tarea dificultosa y/o peligrosa, como son las mujeres en estado de embarazo y la gente de la tercera edad. El diseño de una plataforma flotante cone...

  10. Violencia contra la mujer: conocimiento y actitud del personal médico del Instituto Mexicano del Seguro Social, Morelos, México Violence against women: knowledge and attitudes of healthcare providers at the Mexican Institute of Social Security in Morelos, Mexico

    OpenAIRE

    Pablo Méndez-Hernández; Rosario Valdez-Santiago; Leonardo Viniegra-Velázquez; Leonor Rivera-Rivera; Jorge Salmerón-Castro

    2003-01-01

    OBJETIVO: Evaluar la actitud afectiva, cognoscitiva y conductual del personal médico del Instituto Mexicano del Seguro Social del estado de Morelos, México, hacia la identificación y canalización de mujeres maltratadas que acuden a consulta médica, así como identificar las barreras institucionales y de la práctica médica que dificultan el manejo dentro de los servicios de salud de las mujeres maltratadas. MATERIAL Y MÉTODOS: De septiembre a diciembre de 1999 se realizó un estudio transversal ...

  11. Control and chronic complications of diabetes mellitus in an outpatient atention center in Medellín, Colombia, 1998-2001 Control y complicaciones crónicas de la diabetes mellitus en el Centro de Atención Ambulatorio central, Instituto de Seguro Social 1998-2001

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    Catalina Bedoya Gómez

    2004-01-01

    Full Text Available Diabetes mellitus control requires a constant, continuous and strict evaluation of many factors that inherently affect its course, not only from the point of view of glycemia, but also from other aspects of the metabolic disorder produced by diabetes itself, by other diseases associated with it and by health habits that influence its control and the appearance of complications derived from it. In order to identify this particular situation in the Diabetes Program of the outpatient attention center of the Instituto de Seguro Social (ISS, we evaluated diabetes control, the presence of associated diseases, health habits, chronic complications and the degree of control of many parameters. Methods: We conducted a descriptive, prospective, cross-sectional trial in which, from the total of 1.450 medical charts of patients attending such program and by means of simple randomization and replacement, 304 medical charts were selected of patients that met the inclusion criteria from January 1998 to December 2001. A structured form was applied to all the selected charts in order to evaluate the main clinical features, the presence of associated disease (hypertension, dyslipidemia and obesity, the most significant health habits, the presence of complications and the relationship of control parameters with international standards. Data were registered using Epi-Info 6.0; we processed data obtaining absolute and relative frequencies, and in order to do estimates of association we used contingency tables using Pearson’s chi square with a p significance of < 0.05. Results: of the 304 medical charts reviewed, 91% were from type 2 diabetics and 64% were from women. Diseases associated to diabetes were hypertension 69%, dyslipidemia 64%, obesity 37%. Patients’ life style were as follows: 55% were exercising, 41% were former smokers, 12% were active smokers, 27% ate sugar, 51% ate fat and 8% performed selfmonitoring of blood glucose levels. Chronic complications

  12. Cobertura real de la ley de atención de emergencia y del Seguro Obligatorio contra Accidentes de Tránsito (SOAT Coverage of the emergency health care law and the Compulsory Insurance against Road Traffic Crashes (SOAT

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    J. Jaime Miranda

    2010-06-01

    Full Text Available Objetivo. Determinar, desde la perspectiva de los pacientes, el grado de conocimiento y de cobertura real de la Ley de Atención de Emergencia y del Seguro Obligatorio Contra Accidentes de Tránsito (SOAT. Materiales y métodos. Estudio transversal de vigilancia activa en los servicios de emergencia de establecimientos de salud (EESS de tres ciudades del país con heterogeneidad económica, social y cultural (Lima, Pucallpa y Ayacucho. Resultados. De 644 encuestados, 77% negaron conocer la Ley de Atención de Emergencia (81% en Lima, 64% en Pucallpa y 93% en Ayacucho; pObjective. The aim of this study was to ascertain, from patients’ perspective, the degree of knowledge and the actual coverage of the Emergency Health Care Law and the Compulsory Insurance against Road Traffic Crashes (SOAT. Material and methods. A cross-sectional, active surveillance of emergency wards of selected health facilities in three Peruvian cities (Lima, Pucallpa y Ayacucho was conducted. Results. Out of 644 surveyed victims, 77% did not know about the law about provision of emergency health care (81% in Lima, 64% in Pucallpa y 93% in Ayacucho; p<0,001. Following the explanation of what this law entails, 46% reported to have received care according to the law specifications. As for SOAT, the health care related costs of 237 persons (37.2% were not covered by any insurance scheme (74% in Pucallpa, 34% in Ayacucho and 26% in Lima: p<0,001. Conclusions. In this study, the lack of knowledge about the provision of emergency health care law was important, and the coverage of care was deficient as nearly half of participants reported not to be treated by one or more of the entitlements stated in such law. Road traffic injuriesrelated health care costs were not covered by any insurance scheme in one of three victims. Improvements on citizens’ information about their rights and of effective law enforcement are badly needed to reach a universal and more equitable coverage in

  13. Consumo de tabaco en la población derechohabiente del Instituto Mexicano del Seguro Social Tobacco consumption among the active insured population of the Mexican Social Security Institute

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    IRMA HORTENCIA FERNÁNDEZ-GÁRATE

    1997-03-01

    Full Text Available Objetivo. Conocer la prevalencia del tabaquismo en la población derechohabiente usuaria del Instituto Mexicano del Seguro Social. Material y métodos. En un estudio transversal se entrevistó a la población usuaria de las 36 delegaciones, mediante un cuestionario estructurado y autoaplicable sobre el consumo de tabaco, edad de inicio, cantidad de cigarros y suspensión del consumo. Resultados. Se estudiaron 45 117 sujetos, en proporción similar por género. La prevalencia de fumadores fue del 40% en hombres, del 17.6% en mujeres y mayor en los estados del norte que en el resto del país. Existe un efecto de edad en el consumo de tabaco y más de la mitad de los fumadores iniciaron el hábito en la adolescencia. Conclusiones. La prevalencia de tabaquismo que se encontró es elevada, aunque el promedio de cigarros consumidos no es alto. No obstante, el índice de abandono es bajo. Se requieren medidas de intervención en salud pública para disminuir esta adicción.Objective. To determine the prevalence of tobacco consumption among the active insured population of the Mexican Social Security Institute. Material and methods. A cross-sectional study in which the active insured population from the 36 political delegations was interviewed by means of a structured and self-applicable questionnaire on tobacco consumption, age of initiation, amount of cigarettes consumed and suspension. Results. The sample consisted of 45 117 subjects, of which approximately half were men and half women. Smoking prevalence in men was 40% and in women, 17.6%. Prevalence was highest in the north of the country. There is an effect of age on tobacco consumption and more than half started smoking during adolescence. Conclusions. Smoking prevalence was found to be high, however, the average number of cigarettes is low. Suspension index is low. Public health measures are necessary to diminish this addiction.

  14. Guarantee-bond: main concepts and overview of its application within the bidding process involving inactive areas with marginal accumulations of petroleum and natural gas; Seguro-garantia: conceituacao e panorama de sua aplicacao no processo licitatorio envolvendo areas inativas com acumulacoes marginais

    Energy Technology Data Exchange (ETDEWEB)

    Eduardo, Antonio Sergio; Herrmann, Hildebrando [Universidade ERstadual de Campinas (UNICAMP), SP (Brazil); Ferreira, Doneivan Fernandes [Universidade Federal da Bahia (UFBA), Salvador, BA (Brazil)

    2008-07-01

    The Brazilian Petroleum Agency has been working on the adoption of an efficient financial guarantee system in order to ensure the fulfillment of contractual obligations in upstream-related activities. This process is aimed at: creating incentives for responsible behavior in the industry; attending current demands from society for efficiency and transparency; attending to industries demands for the maintenance of investment flows within the sector; safeguarding the government against financial liabilities caused by irresponsible or insolvent concessionaires; and keeping the sector attractive and competitive for small and medium companies. Within the bidding process for the concession of inactive areas with marginal accumulations, ANP requires two kinds of guarantees: a bidding guarantee, and a PTI guarantee (for obligations under the Initial Work Program-PTI). In both cases, the ANP allows two kinds of financial instruments: 'Seguros-Garantia' and 'Letters of Credit'. According to bidding rules, guarantees must be presented before the bidding process. This instrument ensures that the winner will sign the concession contract. The PTI guarantee ensures performance in a timely fashion. This paper describes and analyzes the instrument 'Seguro-Garantia', its evolution, existing categories, and applicability. (author)

  15. E-commerce y pago seguro

    OpenAIRE

    Parrilla Ortega, Lidia

    2016-01-01

    El objetivo de este proyecto es acercar el mundo del comercio electrónico y de los pagos electrónicos tanto a los usuarios de los mismos, como a los posibles creadores de tiendas online. Partiendo de una introducción a la historia y evolución del e-commerce, así como a sus beneficios y posibles riesgos, se profundiza en los tipos de comercio online más importantes hoy en día y su desarrollo en España. Por otro lado y para complementar todo comercio virtual, es importante tratar los pago...

  16. MANUAL DEL TRABAJO SEGURO EN ALTURAS

    OpenAIRE

    Bedoya-Marrugo Elias Alberto

    2015-01-01

    Desde el inicio de la historia, el ser humano siempre buscó la manera de sobrevivir mediante la elaboración de herramientas como piedras y lanzas para capturar a sus presas; algunas, de gran tamaño, le ocasionaban lesiones y bajas en sus grupos de caza. En virtud de ello, indagaba sobre cómo protegerse de todos los peligros a los que estaba expuesto para evitar lastimarse. Con el transcurrir del tiempo, las personas continuaron buscando las manera de cuidar su...

  17. A Comparison between General Population Mortality and Life Tables for Insurance in Mexico under Gender Proportion Inequality || Una comparación entre la mortalidad de la población general y las tablas de vida de los seguros en México ante porcentajes desiguales de género

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    Ornelas, Arelly

    2013-01-01

    Full Text Available We model the mortality behavior of the general population in Mexico using data from 1990 to 2009 and compare it to the mortality assumed in the tables used in Mexico for insured lives. We _t a Lee-Carter model, a Renshaw-Haberman model and an Age-Period-Cohort model. The data used are drawn from the Mexican National Institute of Statistics and Geography (INEGI and the National Population Council (CONAPO. We also fit a Brass-type relational model to compare gaps between general population mortality and the mortality estimates for the insured population used by the National Insurance and Finance Commission in Mexico. As the life tables for insured lives are unisex, i.e. they do not differentiate between men and women, we assume various sex ratios in the mortality tables for insured lives. We compare our results with those obtained for Switzerland and observe very similar outcomes. We emphasize the limitations of the mortality tables used by insurance companies in Mexico. We also discuss the bias incurred when using unisex mortality tables if the proportion of male and female policyholders in an insurance company is not balanced. || Interesados en conocer las diferencias entre la mortalidad general y la de un subgrupo de la población, como son los asegurados en una compañía de seguros, hemos ajustado un modelo relacional Brass-Type. Para ello, en primer lugar, hemos modelado el comportamiento de la mortalidad de la población general de México entre los años 1990 y 2009. Hemos ajustado un modelo Lee-Carter, un modelo Renshaw-Haberman y un modelo edad-período-cohorte. Los datos utilizados proceden del Instituto Nacional de Estadística y Geografía (INEGI y el Consejo Nacional de Población (CONAPO. Una vez estimadas las tasas de mortalidad se han comparado con la mortalidad asumida por las compañías aseguradoras mexicanas. Estas tasas de mortalidad han sido calculadas por la Comisión Nacional de Seguros y Finanzas de México. Como las

  18. Aussprache als motorische Fertigkeit

    DEFF Research Database (Denmark)

    Bonner, Maria

    2013-01-01

    Authentische Aussprache gilt im Fremdsprachenunterricht als schwer erreichbares Ziel, fremdsprachlicher Akzent wird als nahezu unvermeidbar gesehen. Weder die Hypothese einer kritischen Periode für den Erwerb einer authentischen Aussprache noch das Konzept der Fossilierung im Sprachlernprozess...

  19. Amyotrophic Lateral Sclerosis (ALS)

    Science.gov (United States)

    ... benefit of 16 months before onset of severe respiratory failure. Other treatments are designed to relieve symptoms and ... of ALS. Most people with ALS die from respiratory failure, usually within 3 to 5 years from the ...

  20. Initial Symptoms of ALS

    Science.gov (United States)

    ... Chapters Certified Centers and Clinics Support Groups About ALS About Us Our Research In Your Community Advocate ... Diagnosis En español Symptoms The initial symptoms of ALS can be quite varied in different people. One ...

  1. Factores socio culturales asociados al consumo de frutas en una población adulta costarricense

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    Sonia Guzmán Padilla

    2003-12-01

    Full Text Available Objetivo: Describir la influencia de factores socioculturales sobre el consumo de frutas en una población adulta costarricense. Metodología: Se entrevistaron 161 adultos de ambos sexos en sus hogares por medio de un cuestionario. Se realizó análisis descriptivo, medidas de asociación y regresión logística. Resultados: Las personas que efectuaron cambios (actitudes, las que tuvieron buenos conocimientos, las que perciben beneficios con el consumo de frutas, las que se ven influenciadas por la familia y las que dicen estar muy seguros de poder hacer cambios (autoeficacia, consumen en promedio más fruta al día (0,9-1,2 porciones. De los factores socioculturales estudiados, únicamente la autoeficacia (OR 2,8; IC95% 1,1-7,5 se asoció significativamente con el adecuado patrón de consumo de frutas. Conclusión: Se concluye que los factores socioculturales no influyen en el consumo de frutas, pero es necesario la realización de programas educativos que contribuyan a fomentar o aumentar la ingesta de frutas.

  2. Acesso ao aborto seguro: um fator para a promoção da equidade em saúde Access to safe abortion: a factor to promote equity in health

    Directory of Open Access Journals (Sweden)

    Ivani Bursztyn

    2009-01-01

    Full Text Available Intensos movimentos no sentido de reconhecer o direito da mulher de decidir sobre a interrupção da gravidez provocaram ampla legalização do aborto entre países do norte, enquanto nos demais, devido à legislação restritiva, persistem as práticas inseguras. Visando a contribuir para o debate corrente no Brasil, apresenta-se uma sistematização dos aspectos tratados na literatura especializada quanto às implicações para a saúde pública impostas pela restrição de acesso ao aborto seguro. Foram pesquisadas bases bibliográficas Pubmed e Lilacs, enfatizando-se aspectos psicossociais associados à prática do aborto inseguro. Utilizando-se a análise de conteúdo, identificaram-se quatro eixos temáticos: magnitude do aborto e seu impacto, observando-se que graves consequências que levam à internação e morte devido ao aborto são características dos países com restrição legal; aspectos psicológicos e as práticas contraceptivas entre as mulheres que já sofreram aborto, observando-se que as principais diferenças entre mulheres que abortam e as demais revelam uma maior dificuldade de adaptação aos métodos disponíveis; estratégias para redução de danos resultantes do aborto inseguro, observando-se que algumas medidas podem ser eficazes mesmo em vigência de restrição legal; e a implicação da bioética para a legalização do aborto, observando-se que a legalização depende, principalmente, da capacidade de as mulheres defenderem seus interesses na agenda política. Concluiu-se que a proibição do aborto, na prática, afeta as mulheres pobres de países pobres, perpetuando uma situação de negligência e iniquidade.Intensive movements concerned with the recognition of women´s right to decide about interrupting pregnancy led to a wide spread abortion legalization among the Northern countries, while unsafe practices persist in the others, due to restrictive legislation. Aiming to contribute to the current debate in

  3. Panorama epidemiológico de la mortalidad por cáncer en el Instituto Mexicano del Seguro Social: 1991-1995 Epidemiologic panorama of cancer mortality in the Mexican Institute of Social Security: 1991-1995

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    JORGE SALMERÓN-CASTRO

    1997-07-01

    Full Text Available Objetivo. Describir el comportamiento de la mortalidad global por cáncer, así como la mortalidad específica para las principales neoplasias malignas en población adulta derechohabiente (DH del Instituto Mexicano del Seguro Social (IMSS. Material y métodos. A partir de los registros oficiales de defunción y de la información sobre la población para los años 1991-1995, se estimaron las tasas anuales de mortalidad global y específica para las 10 principales neoplasias malignas por sexo, en mayores de 20 años. Asimismo, se estimaron las tendencias nacionales y estatales para las principales neoplasias malignas para cada sexo por medio de regresión de Poisson. Se calcularon las diferencias de tasas de mortalidad específica para las dos principales neoplasias por sexo restando las tasas estatales a su respectiva tasa nacional en 1995. Resultados. La mortalidad global por cáncer en los hombres se incrementó de 76.2 en 1991, a 94.8 por 100 000 DH en 1995; entre las mujeres, ésta se incrementó de 85.6 a 105.8 por 100 000 DH, representando un incremento de 24.4 y de 24% en hombres y mujeres, respectivamente, durante el periodo de estudio. Entre los hombres las neoplasias de riñón, leucemia, páncreas, próstata y pulmón; y entre mujeres las de colon, mama, páncreas, leucemias e hígado, mostraron los incrementos más significativos. Conclusiones. En el IMSS es impostergable la conformación de un registro poblacional de cáncer que permita una mejor vigilancia epidemiológica de las neoplasias y una evaluación permanente del impacto de programas específicos para la prevención y control de este padecimiento en las instituciones.Objective. This paper describes the global cancer mortality and the specific mortality patterns for the main neoplasms among adult members of the Mexican Institute of Social Security (IMSS. Material and methods. Using official death certificates and information about the population of the IMSS members during

  4. Lessons learned from the first evaluation of the Medical Insurance for a New Generation: bridging research and policy Lecciones aprendidas de la primera evaluación del Seguro Médico para una Nueva Generación

    Directory of Open Access Journals (Sweden)

    Ricardo Pérez-Cuevas

    2012-01-01

    Full Text Available The first evaluation of the Medical Insurance for a New Generation program (SMNG was conducted in 2009. A mixed-method approach was used to obtain a comprehensive picture of SMNG members and the program itself. The evaluation comprised: 1 Program design; 2 Social and health conditions of its members; 3; Evaluation of SMNG's performance by measuring coverage, productivity and efficiency; 4 Families health expenditures. The lessons learned for the program are that SMNG is focused on a vulnerable segment of the population with pervasive unmet health needs; prevalence of malnutrition, anemia and other conditions remains high. Further efforts are necessary to deploy the program where it is most needed, particularly in rural areas; most of its members are urban dwellers. However, more needs to be done to educate members about the importance of preventive care and to build the capability of health providers to provide high quality care. Families are still experiencing hardship to provide medical care to their children, so additional efforts are needed to decrease out-of-pocket and catastrophic expenditures. The lessons learned for the evaluation allow concluding that this first evaluation set the groundwork for better-targeted subsequent interventions and evaluations aimed at showing the impact of SMNG to bridge existing gaps in equity, access, coverage, and health status of Mexican children.La primera evaluación del Seguro Médico para una Nueva Generación (SMNG se llevó a cabo en 2009. La evaluación utilizó métodos mixtos para obtener una imagen completa de los miembros del SMNG y del programa. La evaluación comprendió: 1 el diseño del programa, 2 las condiciones sociales y de salud de los miembros, 3 acceso y uso de los servicios de salud, 4 la calidad de los servicios de atención ambulatoria y hospitalaria y 5 el efecto en los gastos de salud de las familias. El SMNG está enfocado a la población vulnerable con necesidades de salud no

  5. Variabilidad geográfica de las hospitalizaciones por infarto agudo al miocardio en Costa Rica

    Directory of Open Access Journals (Sweden)

    Melvin Morera Salas

    2014-01-01

    Full Text Available La presente investigación muestra los patrones geográficos de las hospitalizaciones por infarto agudo al miocardio en el seguro público de salud de Costa Rica en el trienio 2010-2012. Para el análisis geográfico por área de salud se utiliza un modelo bayesiano jerárquico espacial. Se estiman razones estandarizadas suavizadas y, como medida de precisión, la probabilidad de que cada área de salud registre un riesgo de hospitalización estadísticamente diferente al promedio nacional. En la determinación de presencia de autocorrelación espacial se utiliza el indicador de la I de Moran. La amplitud entre las variaciones observadas se estima mediante la razón interpercentil (percentil 95/percentil 5 y el coeficiente de variación. La tasa bruta de hospitalizaciones es de 5,8 por 10 mil habitantes en hombres y 2,6 / 10 mil en mujeres. Se registra un rango de variación de más de dos veces en las hospitalizaciones entre las áreas con mayores y menores egresos. Se presenta un patrón de bajas tasas de hospitalizaciones por infarto agudo al miocardio en áreas de salud fuera del Área Metropolitana, donde se encuentran los hospitales nacionales de mayor complejidad. Este elemento podría estar asociado a dificultades en el acceso de los servicios de hospitalización.

  6. Variabilidad geográfica de las hospitalizaciones por infarto agudo al miocardio en Costa Rica

    Directory of Open Access Journals (Sweden)

    Melvin Morera Salas

    2014-01-01

    Full Text Available La presente investigación muestra los patrones geográficos de las hospitalizaciones por infarto agudo al miocardio en el seguro público de salud de Costa Rica en el trienio 2010-2012.Para el análisis geográfico por área de salud se utiliza un modelo bayesiano jerárquico espacial. Se estiman razones estandarizadas suavizadas y, como medida de precisión, la probabilidad de que cada área de salud registre un riesgo de hospitalización estadísticamente diferente al promedio nacional.En la determinación de presencia de autocorrelación espacial se utiliza el indicador de la I de Moran. La amplitud entre las variaciones observadas se estima mediante la razón interpercentil (percentil 95/percentil 5 y el coeficiente de variación.La tasa bruta de hospitalizaciones es de 5,8 por 10 mil habitantes en hombres y 2,6 / 10 mil en mujeres. Se registra un rango de variación de más de dos veces en las hospitalizaciones entre las áreas con mayores y menores egresos. Se presenta un patrón de bajas tasas de hospitalizaciones por infarto agudo al miocardio en áreas de salud fuera del Área Metropolitana, donde se encuentran los hospitales nacionales de mayor complejidad. Este elemento podría estar asociado a dificultades en el acceso de los servicios de hospitalización.

  7. Apego al tratamiento farmacológico en pacientes con diagnóstico de diabetes mellitus tipo 2

    Directory of Open Access Journals (Sweden)

    Durán-Varela Blanca Rosa

    2001-01-01

    Full Text Available Objetivos. Establecer la frecuencia de apego al tratamiento farmacológico en pacientes diabéticos tipo 2, relacionarla con el control metabólico e identificar factores que influyen para el no apego. Material y métodos. Estudio transversal comparativo, efectuado en 150 pacientes con diabetes mellitus tipo 2 de la unidad de medicina familiar No. 33 del Instituto Mexicano del Seguro Social de Chihuahua, Chih., México, hecho entre 1997 y 1998. Se midió el apego con cuenta de tabletas en su domicilio. El control metabólico se midió con hemoglobina glucosilada. Un cuestionario investigó factores relacionados. Se utilizó estadística descriptiva, t de Student y razón de momios. Resultados. El apego correspondió a 54.2%. Los factores asociados al no apego fueron la escolaridad primaria y la falta de información sobre la enfermedad (phttp://www.insp.mx/salud/index.html

  8. Volver al desarrollo

    Directory of Open Access Journals (Sweden)

    Jaime Ornelas Delgado

    2012-01-01

    Full Text Available El desarrollo, categoría empleada para expresar el crecimiento económico, surge durante la "guerra fría" y si bien fue propuesta por teóricos metropolitanos, se asumió en Latinoamérica como parte de los instrumentos disponibles para lograr el crecimiento y alternativa al socialismo. El desarrollo mantuvo su vigencia entre 1945 y 1975, cuando al advenimiento del neoliberalismo fue paulatinamente retirado de la agenda de las preocupaciones nacionales e internacionales. Al iniciarse el siglo xxi, el fracaso del mercado autorregulado trajo de nueva cuenta al debate los problemas del desarrollo, lo que obliga a revisarlo críticamente, tanto como al concepto mismo para mostrar su carácter colonial, si se quiere construir caminos ajenos al neoliberal y superar los problemas que han hecho de Latinoamérica una de las regiones más desiguales del mundo.

  9. Jalta als Heterotopie

    OpenAIRE

    Schmid, Ulrich

    2013-01-01

    Jalta ist ein Ort, der sich im europäischen Kulturgedächtnis sowohl historisch als auch literarisch als "radikal anderer Ort" - als " Heterotopie" - festgesetzt hat. An der Konferenz von Jalta wurde 1945 eine neue Weltordnung geschaffen in der Hoffnung auf eine bessere Welt. Auch in den Werken von Anton ?echov, vor allem in denjenigen, die in Jalta entstanden sind, wird von einer anderen und besseren Welt geträumt.

  10. Pornographie als Metapher

    Directory of Open Access Journals (Sweden)

    Caroline Schubarth

    2010-02-01

    Full Text Available In diesem Artikel werden unterschiedliche metaphorische Verwendungen des Pornografiebegriffs und deren Implikationen untersucht. Während die Existenz von Pornografie der feministischen Anti-Porno-Bewegung als Erklärung für die anhaltende Diskriminierung von Frauen in westlichen Gesellschaften dient, nutzen rechtskonservative Kräfte den Pornografievorwurf als Rechtfertigung für die Zensur von als deviant empfundenen Identitäten und sexuellen Praktiken.

  11. Pornographie als Metapher

    OpenAIRE

    Caroline Schubarth

    2010-01-01

    In diesem Artikel werden unterschiedliche metaphorische Verwendungen des Pornografiebegriffs und deren Implikationen untersucht. Während die Existenz von Pornografie der feministischen Anti-Porno-Bewegung als Erklärung für die anhaltende Diskriminierung von Frauen in westlichen Gesellschaften dient, nutzen rechtskonservative Kräfte den Pornografievorwurf als Rechtfertigung für die Zensur von als deviant empfundenen Identitäten und sexuellen Praktiken.This article...

  12. Sobre Al-Qarmuniyya

    OpenAIRE

    Fierro Bello, María Isabel

    1990-01-01

    [ES] En dos tradiciones escatológicas relativas a al-Andalus y recogidas por 'Abd al-Malik h Haha en su Ta'rg se hace referencia a Carmona. La mención de esta ciudad en dichas tradiciones debe ser puesta en relación con dos episodios de la historia de al-Andalus que tuvieron lugar antes de la muerte de Ibn Habib: la batalla de Carmona en época de 'Abd al-Rahman y la concentración de tropas omeyas en el mismo lugar durante el ataque normando en los años 229-30/844-5.

  13. Anestesia regional e trombocitopenia não pré-eclâmptica; hora de repensar o nível seguro de plaquetas Anestesia regional y trombocitopenia no preclámptica; es hora de pensar de nuevo sobre el nivel seguro de plaquetas Regional anesthesia and non-preeclamptic thrombocytopenia: time to re-think the safe platelet count

    Directory of Open Access Journals (Sweden)

    Motoshi Tanaka

    2009-04-01

    Full Text Available JUSTIFICATIVA E OBJETIVOS: Apesar de a anestesia regional ser amplamente utilizada no controle da dor em obstetrícia, seu uso pode não ser apropriado nas pacientes com trombocitopenia por causa do risco de hematoma no neuroeixo. Não existem fortes evidências sugerindo número mínimo de plaquetas necessário para garantir a segurança na realização da anestesia regional. O objetivo deste estudo foi rever a segurança da anestesia regional em pacientes com trombocitopenia não pré-eclâmptica na instituição durante período de cinco anos. MÉTODO: Foi realizada revisão retrospectiva dos prontuários médicos de todas as pacientes obstétricas não pré-eclâmpticas cujo parto foi realizado na instituição entre abril de 2001 e março de 2006 e que apresentaram contagem de plaquetas JUSTIFICATIVA Y OBJETIVOS: A pesar de que la anestesia regional esté siendo muy utilizada en el control del dolor en obstetricia, su uso puede no ser muy apropiado en las pacientes con trombocitopenia, debido al riesgo de hematoma en el neuro eje. No existen fuertes evidencias que sugieran un número mínimo de plaquetas necesario para garantizar la seguridad en la realización de la anestesia regional. El objetivo de este estudio fue analizar la seguridad de la anestesia regional en pacientes con trombocitopenia no preeclámptica en la institución durante un período de cinco años. MÉTODO: Fue realizada revisión retrospectiva de las historias clínicas médicas de todas las pacientes obstétricas no preeclámpticas cuyo parto fue realizado en la institución entre abril de 2001 y marzo de 2006 y que presentaron BACKGROUND AND OBJECTIVES: Although regional anesthesia is widely used for pain control in obstetrics, it may not be appropriate for patients with thrombocytopenia due to the risk of neuraxial hematoma. There is no strong evidence to suggest the minimum platelet count that is necessary to ensure the safe practice of regional anesthesia. The

  14. Al-Anon/Alateen

    Science.gov (United States)

    Find an Al-Anon meeting Español | Français 2018 Int'l Convention Home About Group Meetings What If I'm not ready ... a meeting? What can I expect at an Al-Anon meeting? What was my first meeting like? ...

  15. Ensino/aprendizagem de espanhol em Porto Seguro/BA: investigação acerca das significações docentes sobre o papel da epistemologia do educar em língua estrangeira para a formação do sujeito capaz de cruzar fronteiras culturais

    Directory of Open Access Journals (Sweden)

    Elissandro dos Santos Santana

    2012-09-01

    Full Text Available Este trabalho é fruto de uma pesquisa realizada nos meses de agosto e setembro de 2011 em três escolas de Porto Seguro em torno do seguinte tema: ensino/aprendizagem de espanhol em Porto Seguro/BA: investigação acerca das significações docentes sobre o papel da epistemologia do educar em língua estrangeira para a formação do sujeito capaz de cruzar fronteiras culturais. Na pesquisa de campo, fora aplicado um questionário semi-estruturado a quatro professores de língua espanhola, grupo amostral significativo, haja vista que são poucas as escolas que oferecem o idioma na cidade. O objetivo da pesquisa foi compreender as significações docentes concernentes ao papel da epistemologia do educar em espanhol como língua estrangeira para a formação do sujeito capaz de cruzar fronteiras culturais. Para tanto, a pesquisa fundamentou-se em torno de alguns teóricos da Linguística Aplicada e Manuais de Ensino de Línguas. O trabalho está dividido nas partes, a saber: Introdução, Algumas considerações presentes em manuais de ensino de línguas e/ou teóricos da educação no que tange à epistemologia do educar em língua estrangeira, Metodologia adotada na pesquisa, Análise dos resultados e Considerações finais.

  16. Al - BASED CAST COMPOSITES

    Directory of Open Access Journals (Sweden)

    Rakesh Kumar Yadav

    2011-08-01

    Full Text Available The economy is very important feature nowadays in themarket. The researches are playing an important role inengineering field to increase the life of machine parts /components and decrease the cost. The compositematerials have the potential to replace widely used steeland aluminium due to their good characteristics withbetter performance. The Al-based composites have foundextensive applications in automobile industries andaerospace industries due to their increased stiffness,strength, thermal conductivity and wear resistanceproperties. A number of particulate phases have beenemployed in the Al-alloy matrix. The cast aluminiumceramicparticulate composites are finding applications inpistons, connecting rods, cylinder liner, engine cylinderblock, electrical contacts etc.The present investigation isbased on study of the effect of particulate phase on theSEM study, micro-hardness, elastic modulus, tensilestrength and the wear behaviour of Al-5 % SiC-7 % Fe,Al-10 % SiC-6 % Fe and Al-15 % SiC-5 % Fe composites.

  17. [Environmental factors in ALS].

    Science.gov (United States)

    Juntas-Morales, Raul; Pageot, Nicolas; Corcia, Philippe; Camu, William

    2014-05-01

    ALS is likely to be a disorder of multifactorial origin. Among all the factors that may increase the risk of ALS, environmental ones are being studied for many years, but in the recent years, several advances have pointed to a new interest in their potential involvement in the disease process, especially for the cyanotoxin BMAA. Food containing BMAA has been found on Guam, a well-known focus of ALS/parkinsonism/dementia and high levels of BMAA have been identified into the brain of these patients. The BMAA cyanotoxin is potentially ubiquitous and have also been found into the food of patients who died from ALS both in Europe and USA. BMAA can be wrongly integrated into the protein structure during mRNA traduction, competing with serine. This may induce abnormal protein folding and a subsequent cell death. Heavy metals, such as lead or mercury may be directly toxic for neuronal cells. Several works have suggested an increased risk of ALS in individuals chronically exposed to these metals. Exposure to pesticides has been suggested to be linked to an increased risk of developing ALS. The mechanism of their toxicity is likely to be mediated by paraoxonases. These proteins are in charge of detoxifying the organism from toxins, and particularly organophosphates. To date, there are insufficient scientific data to suggest that exposure to electromagnetic fields may increase the risk of having ALS. We are particularly missing longitudinal cohorts to demonstrate that risk. PMID:24703731

  18. Sociale media als leermiddel

    NARCIS (Netherlands)

    Rubens, Wilfred

    2012-01-01

    Rubens, W. (2012, 5 juni). Sociale media als leermiddel. Presentatie over het gebruik van sociale media binnen het onderwijs, verzorgd tijdens een ouderraadbijeenkomst van de Katholieke Scholengemeenschap Etten-Leur, Etten-Leur, Nederland.

  19. MDA ALS Caregiver's Guide

    Science.gov (United States)

    ... R.D., C.N.S.D., L.D.N. Nutritionist MDA/ALS Center at Vanderbilt University Medical Center ... neurologists, physiatrists, therapists (physical, occupa- tional, speech, respiratory), nutritionists, social work- ers, pulmonologists, gastroenterologists and medical equipment ...

  20. Regionale Herkunft als Bonus

    OpenAIRE

    Kratochvil, Dr. Ruth

    2004-01-01

    Der Bio-Sektor durchlebt bewegte Zeiten. Die biologische Landwirtschaft hat sich aus der Nische herausbewegt und dafür an „Besonderheiten“ eingebüßt. Diese müssen als Zusatznutzen wiedergefunden werden.

  1. Factores asociados al bajo peso al nacer

    OpenAIRE

    Georgina J Peraza Roque; Silvia de la C Pérez Delgado; Zoe de los A Figueroa Barreto

    2001-01-01

    El bajo peso al nacer (BPN) ha constituido un enigma en la ciencia a través de los tiempos. Múltiples son las investigaciones realizadas acerca de las causas que lo producen y las consecuencias que provoca. Su importancia no solo radica en lo que significa en la morbilidad y la mortalidad infantil, sino que estos niños tienen habitualmente múltiples problemas posteriores. El Programa para la Reducción del BPN señala que los niños nacidos con un peso inferior a los 2 500 g presentan riesgo de ...

  2. Partizipation als Ausnahmezustand

    OpenAIRE

    Korf, Benedikt

    2009-01-01

    In «Die Erfindung des Politischen» (1993) beschreibt Ulrich Beck Subpolitik als den Ort, an dem die Grenze zwischen Politik und Nichtpolitik verschwindet. Aus der zunehmenden Wirkkraft von Subpolitik erwächst die grundlegende Frage, mit welcher Legitimation diese Art von Subpolitik in die Sphäre der institutionalisierten Politik eindringt. Beck’s Subpolitik soll im Anschluss an theoretische Arbeiten von Chantal Mouffe und Giorgio Agamben als post-politische Aspiration bezeichnet werden, die e...

  3. Der Preis als Kaufbarriere?

    DEFF Research Database (Denmark)

    Mueller Loose, Simone

    2012-01-01

    Die Preispolitik hat eine herausragende Stellung im Marketing. Der Preis eines Produktes ist für Verbraucher ein direkter Kostenfaktor und für Unternehmen die Stellgröße im Mar-ketingmix, die den Umsatz am stärksten beeinflusst (vgl. Nieschlag et al. 2002). Wenn die Akzeptanz und der regelmäßige...... Verzehr gesunder Lebensmittel erhöht werden soll, ist es sowohl für die Verbraucherpolitik als auch für Lebensmittelproduzenten wichtig, den Ein-fluss des Preises auf die Kaufentscheidung zu verstehen. Aus Verbrauchersicht ist der Preis neben dem Geschmack die wichtigste Produkteigen-schaft beim Kauf von...... Lebensmitteln (vgl. Brunsø/Grunert 1998) und stellt eine Kaufbarrie-re für Lebensmittel mit gesundheitsfördernden Eigenschaften dar. Studien in den USA (vgl. Cassady et al. 2007), Frankreich (vgl. Drewnowski et al. 2004; Andrieu et al. 2005) und Deutschland (vgl. Karg et al. 2008) kommen übereinstimmend zu dem...

  4. Modification of residual stress in Al-[AlBO]w/Al compound plate

    Institute of Scientific and Technical Information of China (English)

    姜传海; 吴建生; 王德尊

    2001-01-01

    The application of compound parts of Al-[AlBO]w/Al not only reduces the cost of the parts but also improves its properties. However, there is a large thermal residual stress between Al and [AlBO]w/Al, and it is harmful for practical application. From the theoretical analyses and experimental results, it was found that by the compressive pre-plastic deformation perpendicular to the interface between Al and [AlBO]w/Al, the interlayer residual stress of compound parts can be reduced, while the mechanical properties of compound parts can be improved.

  5. Evaluación del impacto de la Reforma Mexicana de salud 2001-2006: un informe inicial Assessing the effect of the 2001-06 Mexican health reform: an interim report card

    Directory of Open Access Journals (Sweden)

    Emmanuela Gakidou

    2007-01-01

    Full Text Available A partir de 2001 se inicia en México un proceso de diseño, legislación e implementación de la Reforma Mexicana de Salud. Un componente clave de ésta fue la creación del Seguro Popular, que pretende extender la cobertura de aseguramiento médico por siete años a la población que no cuenta con seguridad social, la cual constituía en ese momento casi la mitad de la población total. La reforma incluyó cinco acciones: modificar la ley para garantizar el derecho a la protección a la salud para las familias afiliadas, lo cual al ser implantado completamente incrementará el gasto público en salud entre 0.8 y 1.0% del PIB; la creación de un paquete de servicios de salud explícito; la asignación de recursos a secretarías estatales de salud descentralizadas, proporcional al número de familias incorporadas; la división de los recursos federales destinados a los estados en fondos independientes para servicios de salud personales y no personales; así como la creación de un fondo para garantizar recursos cuando se presentan eventos catastróficos en salud. Mediante el uso del marco conceptual de los sistemas de salud de la OMS, se han examinado diversos conjuntos de datos para evaluar el impacto de esta reforma en distintas dimensiones del sistema de salud. Entre los principales hallazgos clave se encuentran que: la afiliación alcanza de manera preferente a las comunidades pobres y marginadas; el gasto federal no correspondiente a la seguridad social aumentó 38% de 2000 a 2005 en términos reales; ha mejorado la equidad del gasto público entre los estados; los afiliados al Seguro Popular presentan una mayor utilización de servicios, tanto a nivel ambulatorio como para pacientes externos y pacientes hospitalarios en comparación con los no asegurados; la cobertura efectiva de 11 intervenciones en salud ha mejorado entre 2000 y 2005; han disminuido las desigualdades en cobertura efectiva durante este periodo en todos los estados y

  6. Altern als Widerstand

    Directory of Open Access Journals (Sweden)

    Roberta Maierhofer

    2005-07-01

    Full Text Available Gullettes kulturwissenschaftliche Untersuchung Aged by Culture ist wie bereits ihre zwei vorangehenden Werke, die sich mit Altern beschäftigen – Safe at Last in the Middle Years: The Invention of the Midlife Progress Novel (1988 und Declining to Decline. Cultural Combat and the Politics of the Middle (1997 –, von großem persönlichen Engagement und durch ein politisches Anliegen motiviert. Sowohl die Dringlichkeit als auch der Widerstand, den Gullette, die sich als „age critic“ definiert, als moralische und politische Notwendigkeit postuliert, werden in der Zweiteilung der Abhandlung angesprochen: „Cultural Urgencies“ und „Theorizing Age Resistantly“. Während Gullette den Begriff „aged by culture“ bereits in Declining to Decline einführt, stellt sie ihn nun in den Mittelpunkt ihrer Untersuchung. Das Buch ist einerseits einer gesellschaftspolitischen Analyse der USA gewidmet, andererseits wird eine Theorie des Widerstands gegenüber Altersdiskriminierung entwickelt.

  7. Pornographie als Metapher

    Directory of Open Access Journals (Sweden)

    Caroline Schubarth

    2010-03-01

    Full Text Available In diesem Artikel werden unterschiedliche metaphorische Verwendungen des Pornografiebegriffs und deren Implikationen untersucht. Während die Existenz von Pornografie der feministischen Anti-Porno-Bewegung als Erklärung für die anhaltende Diskriminierung von Frauen in westlichen Gesellschaften dient, nutzen rechtskonservative Kräfte den Pornografievorwurf als Rechtfertigung für die Zensur von als deviant empfundenen Identitäten und sexuellen Praktiken.This article examines different metaphorical uses of the term pornography and the resulting implications. While the existence of pornography for the feminist anti-porno movement serves as factor in the continuing discrimination of women in western societies, conservative powers on the right use the allegation of pornography as a justification for censorship of those identities and sexual practices deemed deviant.

  8. Wikipedia als Referenzorgan

    OpenAIRE

    Voß, Jakob

    2006-01-01

    Wikipedia wird inzwischen von vielen Nutzern regelmäßig als Nachschlagewerk genutzt. Aufgrund des offenen Charakters der Online-Enzyklopädie, bei der sich jeder direkt beteiligen kann, ist jedoch zusätzliche Medienkompetenz notwendig, um die Qualität einzelner Wikipedia-Artikel einschätzen zu können. Im Vortrag sollen Methoden zur Beurteilung von Wikipedia-Artikeln dargestellt und die Frage beleuchtet werden, unter welchen Umständen Wikipedia als Referenzorgan geeignet ist.

  9. Calidad de Arención del Adulto Mayor en la Caja Nacional de Salud Cochabamba

    Directory of Open Access Journals (Sweden)

    Wilfredo Villarroel Lafuente

    2009-06-01

    Full Text Available En Bolivia un 7% de la población es Adulta Mayor (AM, de los cuales el 61% vive en la pobreza; por ello se promulgó laley 1889 que pone en vigencia el Seguro Medico Gratuito de Vejez (SMGV, sin embargo la Caja Nacional de Salud (CNSsoporta el 88% de los afiliados al SMGV, por lo cual esta actualmente colapsada por la demanda de servicios, con la consecuenteperdida de calidad y calidez en la atención del AM. Por lo tanto desarrollamos el presente estudio de tipo transversal,descriptivo con el propósito de determinar la percepción del Adulto Mayor sobre la calidad de atención y la relaciónmédico paciente dentro del marco de las prestaciones del SMGV. Analizamos 170 muestras, 114 en la CNS policlínicoAnexo 32 y 56 en la CNS Quillacollo. Observamos que la percepción sobre la calidad de Atención del SMGV en la CNSes buena en 51% de los casos, 27% la catalogan como regular a mala y el 22% como pésima. Referente a la relación médicopaciente tenemos que 68% de los pacientes están de acuerdo con el trato que se les brinda en el SMGV. Se concluye coneste estudio que el nivel de trato y calidad de atención al paciente AM, nos falta aun mucho por avanzar, un trato cordial osolo un apretón de manos serian un buen comienzo para un tratamiento mejor del adulto mayor.

  10. La prueba en los procesos de seguridad social en sede administrativa

    Directory of Open Access Journals (Sweden)

    Luis Eduardo Díaz

    2007-09-01

    Full Text Available El artículo examina las pruebas de las que pueden valerse los afiliados del seguro social como parte de un procedimiento que debe ser rápido y sencillo. éste se desarrolla con planillas en serie que facilitan la producción de resueltos como parte de los derechos de petición, para lo cual, el afiliado debería de contar con información previsional relevante para así gestionar sus prestaciones. En esencia, el derecho de la seguridad social, está expresado en numerosas formas administrativas, pero no cuenta aún con un procedimiento y una práctica que permita progresivamente la sustitución o revisión del material escrito pre existente, sobretodo, cuando no es posible vaciar la información solicitada o llenar los datos requeridos, resultando el afiliado lesionado. Se requiere además, un órgano que asesore y defienda a los usuarios, así como formas administrativas que se ajusten a nuevas realidades.

  11. BERKELEY: ALS ring

    International Nuclear Information System (INIS)

    Everybody at Lawrence Berkeley Laboratory's Center for Beam Physics is pleased with the rapid progress in commissioning LBL's Advanced Light Source (ALS) electron storage ring, the foundation for this third-generation synchrotron radiation facility. Designed for a maximum current of 400 mA, the ALS storage ring reached 407 mA just 24 days after storing the first beam on 16 March. ALS construction as a US Department of Energy (DOE) national user facility to provide high-brightness vacuum ultra-violet and soft x-ray radiation began in October 1987. One technical requirement marking project completion was to accumulate a 50-mA current in the storage ring. The ALS passed this milestone on 24 March, a week ahead of the official deadline. Once injected, the electron beam decays quasi-exponentially primarily because of interactions with residual gas molecules in the storage-ring vacuum chamber. Eventually, when the pressure in the vacuum chamber with beam decreases toward the expected operating level of 1 nano Torr, it will only be necessary to refill the storage ring at intervals of four to eight hours. At present the vacuum is improving rapidly as surfaces are irradiated (scrubbed) by the synchrotron radiation itself. At 100 mA, beam lifetime was about one hour (9 April)

  12. Al Shanker Remembers.

    Science.gov (United States)

    American Educator, 2000

    2000-01-01

    In a 1996 interview shortly before his death, Al Shanker, longtime president of the American Federation of Teachers, discussed such topics as: his own educational experiences; how he learned about political fighting in the Boy Scouts; the appeal of socialism; multinational corporations and the nation state; teaching tough students; and John Dewey…

  13. Unidades de alimentação e nutrição nos campi da Universidade Federal da Bahia: um estudo sob a perspectiva do alimento seguro Food and nutrition units at the Federal University of Bahia campuses (Brazil: a study from the food safety perspective

    Directory of Open Access Journals (Sweden)

    Ryzia de Cassia Vieira Cardoso

    2005-10-01

    Full Text Available OBJETIVO: Avaliar as unidades de alimentação e nutrição que funcionam nos campi da Universidade Federal da Bahia, na perspectiva da produção de alimentos seguros. MÉTODOS: Os estabelecimentos foram avaliados pelo uso de um formulário, elaborado com base na legislação vigente e em referencial técnico da área. Das 22 unidades instaladas nos campi, 20 participaram. RESULTADOS: Situações insatisfatórias foram detectadas, como a presença de insetos e roedores, a ausência de controle de qualidade da água, a conservação de alimentos prontos em condições favoráveis ao crescimento de microrganismos e instalações inadequadas ao funcionamento. Ainda que grande parte dos entrevistados relatasse o recebimento de treinamento para manipulação de alimentos e demonstrasse empenho quanto ao desenvolvimento da qualidade dos seus serviços, as deficiências evidentes refletiram negativamente sobre a segurança dos produtos elaborados. CONCLUSÃO: As unidades de alimentação e nutrição avaliadas, em sua maior parte, não atenderam aos requisitos considerados para a produção de alimentos seguros, indicando riscos para os consumidores.OBJECTIVE: The objective was to evaluate the food and nutrition units at the Federal University of Bahia (Brazil campuses, from the perspective of the safe production of food. METHODS: A questionnaire was developed to evaluate the establishments, based on the current legislation and technical references regarding the area. Twenty of the 22 units on the campuses were surveyed. RESULTS: The results showed unsatisfactory conditions, such as the presence of insects, rodents, a lack of quality control of the water supply, preservation of the ready-to-eat food in conditions favorable for the growth of microorganisms and unsuitable installations. Most of the people interviewed mentioned having received training in food handling and demonstrated interest in improving the quality of their services, but the evident

  14. O mercado de planos e seguros de saúde no Brasil: uma abordagem exploratória sobre a estratificação das demandas segundo a PNAD 2003 The market of health plans and insurances in Brazil: an exploratory approach to the stratification of demands based on the 2003 PNAD

    Directory of Open Access Journals (Sweden)

    Ligia Bahia

    2006-12-01

    Full Text Available A partir dos dados do Suplemento Saúde da PNAD 1998, diversos estudos evidenciaram a presença de diferenças significativas nos padrões socioeconômicos, acesso, utilização de serviços de saúde e condições de saúde entre os segmentos populacionais cobertos e não cobertos por planos de saúde. Buscando contribuir para aprimorar o acervo dos conhecimentos sobre a estrutura e a dinâmica do mercado de planos e seguros de saúde no Brasil, admite-se e procura-se evidenciar a heterogeneidade dessas demandas. Para tanto, foi definida uma tipologia de planos de saúde, fundamentada nas origens institucionais das demandas e, subseqüentemente, pelas relações de dependência com titulares de planos e seguros de saúde, integrada por três categorias principais: os planos empresariais privados, os planos empresariais públicos e os planos individuais. As características etárias, socioeconômicas e de condições de saúde variam segundo os diferentes tipos de plano, sugerindo a presença de padrões distintos de demandas, especialmente entre os planos empresariais privados e os planos individuais.Several studies based on the 1998 PNAD Health Supplement data have shown significant differences in socioeconomic standards, access to and use of health services among population segments covered or not by health plans. Seeking to improve our knowledge on the structure and dynamics of the market of health plans and insurances in Brazil, we sought first to identify and then to highlight the different demands. To this effect, we conceived a typology of health plans on the basis of the institutional origin of the demands and on the relation between insurance and health plan holders and their dependents for three major categories: private employer plans, public employer plans and individual plans. Age, socioeconomic patterns and health conditions vary according to different health plan profiles, suggesting distinct patterns of demands, markedly between

  15. Globalización y derechos humanos frente al Estado de bienestar

    Directory of Open Access Journals (Sweden)

    Franz Hinkelammert

    2001-04-01

    Full Text Available Hablar hoy del Estado de bienestar nos obliga a reflexionar sobre lo que el mismo es y lo que ha sido. Vivimos hoy - abiertamente desde los años ochenta - una situación, en la cual la opinión pública -la opinión publicada para ser exactos-, se pronuncia en contra del Estado de bienestar como algo superado, inclusive algo nefasto que debe quedar atrás. Lo que llamamos hoy Estado de bienestar, tuvo su auge en los años 50 hasta 70 del siglo XX, pero que fue desarrollado a partir de fines del siglo XIX por una política creciente de intervención en el mercado capitalista. Se trata de un intervencionismo tanto económico como social, que establece especies de reservas del mercado. Se trata de actividades que no son dirigidas por las fuerzas del mercado, aunque siempre están integrados al mercado.En lo económico hay política de desempleo, planificación de inversiones, reservación de determinadas actividades a empresas públicas y ordenamientos del mercado sobre todo en la agricultura. En lo social hay apoyo a las intervenciones en el mercado de parte de las organizaciones sindicales y del movimiento cooperativo, reserva para el seguro social en el campo de cajas públicas de pensiones, sistemas públicos de salud, sistemas públicos de educación y un amplio fomento de la construcción de viviendas. El propio socialismo después de la II. guerra mundial ha tenido muchas características parecidas a este Estado de bienestar y hay razones para incluirlo en el concepto, cuando hoy se habla del Estado de bienestar.

  16. Nuevos retos en la industria alimentaria: Elaboración de alimentos nutricionalmente adecuados, con mínima alteración organoléptica y alergénicamente seguros

    OpenAIRE

    Pérez Rodríguez, Bernardo José

    2016-01-01

    En épocas pasadas, la alimentación se enfocaba hacia la supervivencia, la satisfacción del apetito y el ponerse a salvo de enfermedades causadas por deficiencias de ciertos nutrientes. Hoy en día, especialmente en los países del primer mundo, los alimentos deben además promocionar la salud y contribuir al bienestar del consumidor. No obstante, la situación actual ha llevado a la paradoja de que en dichos países, la obesidad, así como las comúnmente denominadas enfermedades crón...

  17. ALS insertion devices

    International Nuclear Information System (INIS)

    The Advanced Light Source (ALS), the first US third generation synchrotron radiation source, is currently under construction at the Lawrence Berkeley Laboratory. The low-emittance, 1.5 GeV electron storage ring and the insertion devices are specifically designed to produce high brightness beams in the UV to soft X-Ray range. The planned initial complement of insertion devices includes four 4.6 m long undulators, with period lengths of 3.9 cm, 5.0 cm (2) and 8.0 cm, and a 2.9 m long wiggler of 16 cm period length. Undulator design is well advanced and fabrication has begun on the 5.0 cm and 8.0 cm period length undulators. This paper discusses ALS insertion device requirements; general design philosophy; and design of the magnetic structure, support structure/drive systems, control system and vacuum system. 18 refs., 9 figs., 5 tabs

  18. De GPS al mapa

    Directory of Open Access Journals (Sweden)

    Esteban Dörries

    2016-03-01

    Full Text Available Las coordenadas Lambert obtenidas a partir de mediciones con equipos GPS de mano, llamados a veces navegadores, en ciertos casos confunden al usuario, por diferir claramente de su posición real al ser graficadas en un mapa del Instituto Geográfico Nacional (IGN: Esto puede resolverse con suficiente exactitud mediante una transformación de Molodensky, seguida de la correspondiente proyección cartográfica. Sin embargo, los tres parámetros necesarios para la transformación, supuestamente válidos para Costa Rica, se encuentran en muchas variantes y producen obviamente resultados diferentes. En este trabajo se analizan los fundamentos del problema y sus posibles soluciones, culminando con un estudio comparativo de ocho casos, que permite seleccionar los valores más adecuados para los parámetros.

  19. Acarbose als Carbophor

    OpenAIRE

    Merettig, Nadine

    2014-01-01

    Das Pseudotetrasaccharid Acarbose ist seit 1990 als kompetitiver Inhibitor intestinaler α-Glucosidasen (GlucobayTM/PrecoseTM) in der medizinischen Anwendung bei der Therapie von Diabetes mellitus Typ-2. Charakteristisch für die Struktur der Acarbose ist die Acarviosyleinheit, bei der Valinamin und Desoxyglucose N-glycosidisch verknüpft sind; des Weiteren ist an die Acarviosyleinheit ein Maltosylrest gebunden. Der Inhibitoreffekt beruht auf der irreversiblen Bindung zwischen ...

  20. Augmented Reality als Bildungsenhancement?

    OpenAIRE

    Damberger, Thomas

    2015-01-01

    Die Realität, die sich mithilfe von Datenbrillen und Smartphone Applikationen in die virtuelle Welt hinein ausdehnt, erfährt eine Form des Enhancements. Ein solches Enhancement kann unter bestimmten Voraussetzungen als Bildungsenhancement verstanden werden. Der Text befasst sich mit Formen der erweiterten Realität, ferner mit dem, um was es wesentlich bei der Bildung geht und zuletzt mit den Bedingungen, die erforderlich sind, um diesem Wesentlichen mit Hilfe von augmented reality besser zum ...

  1. Carta al editor

    OpenAIRE

    Harry Pachajoa

    2012-01-01

    Recently, Valencia et al., published a very interesting article called «Lipid profile in a group of patients with Turner’s syndrome at Clínica Universitaria Bolivariana in the city of Medellín between 2000 and 2009". An article which evaluated lipid levels in patients withTurner syndrome in a Colombian clinic, the study associated results of lipid profile with karyotype and other risk factors for coronary heart disease.

  2. EL SEGURO DE CAPACITACIÓN Y EMPLEO. INTERPRETACIÓN TEÓRICA Y RESULTADOS DE SU IMPLEMENTACIÓN EN LA CIUDAD DE MAR DEL PLATA, ARGENTINA

    Directory of Open Access Journals (Sweden)

    Eugenio Actis Di Pasquale

    2014-01-01

    Full Text Available En este artículo se pretende estudiar la implementación de una herramienta de protección contra el desempleo en Mar del Plata, Argentina. Se lo examina a través de una adaptación del marco liberal igualitario y, después, con base en la propuesta de Roemer, se analiza la significatividad estadística de los tipos definidos en relación a los logros educativos. Finalmente, mediante un modelo logit binomial, se calcula la probabilidad de conseguir trabajo. Los resultados demuestran la importancia de las circunstancias personales en la definición de los tipos, y que la probabilidad de trabajar es mayor para los varones y creciente respecto al tipo analizado.

  3. AL-USRCRN Station Information

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Documentation of United States Alabama Regional Climate Reference Network (AL-USRCRN) installations in 2006. Installations documented are for AL-USRCRN pilot...

  4. Gliricidia sepium al establecimiento

    Directory of Open Access Journals (Sweden)

    J. L. Valle

    2004-01-01

    Full Text Available Se asoció Cenchrus ciliaris (Cc y Gliricidia sepium (Gs para evaluar la producción de biomasa y la composición química de los forrajes en la fase de establecimiento, en el estado de Morelos, México, en condiciones de trópico seco. Se empleó un análisis de varianza con diseño en bloques al azar, en donde T1 fue pasto solo, T2 Cc más Gs con 5,000 plantas ha-1 y el T3 Cs más Gs con 14,285 plantas ha-1. Se midió la producción de forraje individual y asociado con materia seca (t MS/Ha, la altura (A en cm, la proteína cruda (PC%, las fracciones de fibra (FDN% y FDA% y la digestibilidad in vitro de la materia seca (DIVMS%. El T3 tuvo una mejor producción de biomasa (P0.05. La asociación de 14,285 plantas ha-1 de G. sepium con pasto Cenchrus ciliaris mejoró la producción de biomasa y la disponibilidad total de nutrientes por superficie cultivada al establecimiento

  5. Frecuencia de reingresos hospitalarios y factores asociados en afiliados a una administradora de servicios de salud en Colombia

    Directory of Open Access Journals (Sweden)

    Andrés Caballero

    2016-01-01

    Full Text Available Resumen: Los reingresos hospitalarios son frecuentes y costosos, en Colombia existe poca información. El objetivo fue establecer la frecuencia de reingresos hospitalarios por cualquier causa a 30 días y factores asociados. Se trata de un estudio analítico con cohorte retrospectiva 64.969 hospitalizaciones entre enero de 2008 y enero de 2009 en 47 ciudades colombianas 6.573 reingresos hospitalarios, prevalencia: 10,1% (hombres 10,9%; mujeres 9,5%, 44,7% en > 65 años. Mortalidad mayor en reingresos hospitalarios (5,8% vs. 1,8%. Mayor carga de reingresos hospitalarios en grupo sistema circulatorio. Mayor probabilidad de reingresos hospitalarios en enfermedades hematológicas y neoplasias. Estancia hospitalaria promedio durante el primer ingreso: 7 días en pacientes que reingresaron y 4,5 en quienes no. Costo total mayor para reingresos hospitalarios (USD 21.998.275: 15,8% del costo total de hospitalizaciones. Mayor prevalencia en pacientes remitidos (18,8% y de consulta externa (13,7%. Los reingresos hospitalarios son frecuentes, se asocian con mayor estancia, mortalidad y costo. Mayor riesgo de reingresos hospitalarios en sexo masculino, > 65 años, pacientes remitidos de otra institución, enfermedades hematológicas y neoplasias.

  6. Descripción clinico-radiológica y patológica de las lesiones palpables de mama, Clínica León XIII, Seguro Social, Medellín, enero 2001-abril 2002

    Directory of Open Access Journals (Sweden)

    Gloria Marín

    2001-04-01

    Full Text Available

    El médico, frente a un paciente con enfermedad mamaria, debe realizar una historia clínica completa en donde se tengan en cuenta los factores de riesgo, los antecedentes personales y familiares de lesión mamaria (menarca precoz, y menopausia tardía, entre otros; el examen físico debe hacerse detenidamente, teniendo en cuenta la inspección, localización, signos y síntomas. No se puede restar importancia
    al estudio de las lesiones de mama, ya que con él se puede
    descartar y prevenir una posible lesión maligna.
    Para el estudio se tendrá en cuenta la «tríada diagnóstica» de las
    lesiones mamarias: clínica, mamografía o ecografía y biopsia en las
    lesiones palpables. Se desea observar la relación que existe entre la
    clínica y las ayudas diagnósticas para el establecimiento de una determinada enfermedad (1.

     

  7. Prácticas nutricias en pacientes diabéticos tipo II en el primer nivel de atención. Instituto Mexicano del Seguro Social (IMSS, Jalisco, México

    Directory of Open Access Journals (Sweden)

    Carlos E. Cabrera Pivaral

    1996-12-01

    Full Text Available Las prácticas nutricias de los diabéticos reflejan el comportamiento humano y la cultura de estos pacientes; representa, además, como el diabético se enfrenta a la enfermedad. El propósito del estudio fué identificar y relacionar las prácticas nutricias con el control metabólico, edad, sexo, escolaridad y tiempo de enfermedad. La muestra fué de 114 casos seleccionados por muestreo aleatorio sistemático de cinco unidades de medicina familiar de Guadalajara elegidas al azar. Utilizando trece preguntas estructuradas, codificadas y cuantificadas tipo Likert se valoró la práctica nutricia con un rango de 0-65. Los resultados muestran que el 21% de los diabéticos tienen adecuadas prácticas nutricias (>31 puntos y su relación con escolaridad y tiempo de enfermedad mostró diferencias estadísticamente significativas (p=0,05. La regresión simple demostró que el 9% del control metabólico se explica por las prácticas nutricias (r= -0,31

  8. Prácticas nutricias en pacientes diabéticos tipo II en el primer nivel de atención. Instituto Mexicano del Seguro Social (IMSS, Jalisco, México

    Directory of Open Access Journals (Sweden)

    Cabrera Pivaral Carlos E.

    1996-01-01

    Full Text Available Las prácticas nutricias de los diabéticos reflejan el comportamiento humano y la cultura de estos pacientes; representa, además, como el diabético se enfrenta a la enfermedad. El propósito del estudio fué identificar y relacionar las prácticas nutricias con el control metabólico, edad, sexo, escolaridad y tiempo de enfermedad. La muestra fué de 114 casos seleccionados por muestreo aleatorio sistemático de cinco unidades de medicina familiar de Guadalajara elegidas al azar. Utilizando trece preguntas estructuradas, codificadas y cuantificadas tipo Likert se valoró la práctica nutricia con un rango de 0-65. Los resultados muestran que el 21% de los diabéticos tienen adecuadas prácticas nutricias (>31 puntos y su relación con escolaridad y tiempo de enfermedad mostró diferencias estadísticamente significativas (p=0,05. La regresión simple demostró que el 9% del control metabólico se explica por las prácticas nutricias (r= -0,31

  9. Epitaxial growth of Al/Al2O3 multilayer structures

    International Nuclear Information System (INIS)

    In order to obtain Al-Al2O3 quantum effect devices, it is necessary to deposit epitaxially Al on Al2O3 and Al2O3 on Al. We have already obtained an epitaxial Al/Al2O3/Al structures on Si(111). In this paper, we have deposit Al/Al2O3/Al structures on Si(111), and investigated the crystallinity by using RBS. (author)

  10. Doppelthydrophile Blockcopolymere als Mineralisationstemplate

    Science.gov (United States)

    Kasparova, Pavla

    2002-07-01

    Die vorliegende Arbeit beschäftigt sich mit der Synthese und den Eigenschaften von doppelthydrophilen Blockcopolymeren und ihrer Anwendung in einem biomimetischen Mineralisationsprozeß von Calciumcarbonat und Bariumsulfat. Doppelthydrophile Blockcopolymere bestehen aus einem hydrophilen Block, der nicht mit Mineralien wechselwirkt und einem zweiten Polyelektrolyt-Block, der stark mit Mineraloberflächen wechselwirkt. Diese Blockcopolymere wurden durch ringöffnende Polymerisation von N-carboxyanhydriden (NCA's) und a-methoxy-ω-amino[poly(ethylene glycol)] PEG-NH2 als Initiator hergestellt. Die hergestellten Blockcopolymere wurden als effektive Wachstumsmodifikatoren für die Kristallisation von Calciumcarbonat und Bariumsulfat Mineralien eingesetzt. Die so erhaltenen Mineralpartikel (Kugeln, Hantel, eiförmige Partikel) wurden durch Lichtmikroskopie in Lösung, SEM und TEM charakterisiert. Röntgenweitwinkelstreuung (WAXS) wurde verwendet, um die Modifikation von Calciumcarbonat zu ermitteln und die Größe der Calciumcarbonat- und Bariumsulfat-Nanopartikel zu ermitteln. This work describes the synthesis and characterization of double hydrophilic block copolymers and their use in a biomimetic mineralization process of Calcium Carbonate and Barium Sulfate. Double hydrophilic block copolymers consist of a hydrophilic block that does not interact with minerals and another hydrophilic polyelectrolyte block that strongly interacts with mineral surfaces. These polymers were synthesised via ring opening polymerisation of N-carboxyanhydride (NCA), and the first hydrophilic block a-methoxy-ω-amino[poly(ethylene glycol)] PEG-NH2 was used as an initiator. The prepared block copolymers were used as effective crystal growth modifiers to control the crystallization of Calcium Carbonate and Barium Sulfate minerals. The resulting mineral particles (spheres, dumbbells, egg-like particles) were characterised by light microscopy in solution, by SEM, and by TEM. X-Ray scattering

  11. Fretting wear performances of multilayered PVD TiAlZrN/TiAlN/TiAl on AISI 4140 steel

    OpenAIRE

    Tlili, Brahim; NASRI, Mustapha; F. Ayari; Nouveau, Corinne

    2008-01-01

    Nowadays, most surface treatments are realized through vapor deposition techniques as thin hard coatings to guarantee; high surface hardness, low friction coefficient and improve wear resistance. Several experimental investigations have let to the development of a (TiAlCN/TiAlN/TiAl) and (TiAlZrN/TiAlN/TiAl) coatings in preference to the traditional TiN coating. In the current paper research conducted on fretting wear of a (TiAlCN/TiAlN/TiAl) and a (TiAlZrN/TiAlN/TiAl) multilayer coatings de...

  12. DOES DEPOSIT INSURANCE INDUCE MORAL HAZARD? AN EMPIRICAL STUDY WITH CREDIT UNIONS FROM THE STATE OF MINAS GERAIS O SEGURO-DEPÓSITO INDUZ RISCO MORAL? UM ESTUDO EMPÍRICO COM AS COOPERATIVAS DE CRÉDITO DO ESTADO DE MINAS GERAIS

    Directory of Open Access Journals (Sweden)

    Valéria Gama Fully Bressan

    2013-01-01

    Full Text Available The deposit insurance mechanism is aimed at the security and liquidity of the financial system. But, paradoxically,  it may end up increasing the instability of  the financial system as a result of  themoral hazard problem. In fact, conflicting interests of the parties coupled with imperfect monitoringcan induce financial institutions under the protection of a deposit insurance system to run into morerisk than  the level recommended by the fund manager.  This study tested the hypothesis that the Deposits Guarantee Fund (FGD has not induced the  moral hazard  problem,  using a panel composed of 62% of credit unions in the state of Minas Gerais affiliated to the Sicoob-Crediminassystem from January 1995 to May 2008. We tested alternative specifications for panel data models using six proxies for the degree of risk exposure of cooperatives as suggested by the literature. Wefound that the preferred model is the fixed e ects model estimated by Feasible Generalized Least Squares.  We could not reject the null hypothesis that the FGD has not induced moral hazard problems.O mecanismo de seguro-depósito objetiva criar segurança e liquidez no sistema financeiro, mas,paradoxalmente, pode gerar instabilidade ao sistema, por conta  do problema de risco moral.  Os interesses conflitantes  das partes, aliados ao monitoramento imperfeito, podem induzir asinstituições financeiras sob a égide do  seguro-depósito  a expor-se a um risco  maior do que opreconizado pelo fundo gestor do fundo. Sob essa perspectiva, o presente estudo testou a hipótesede que o Fundo Garantidor de Depósitos (FGD não induz ao risco moral, de acordo com um painel composto  de 62% das cooperativas de crédito do Estado de Minas Gerais, filiadas ao sistemaSicoob-Crediminas de janeiro de 1995 a maio de 2008. Foram testadas diversas especificações demodelos em painel utilizando-se seis proxies para a mensuração do grau de exposição ao risco das

  13. Malamih al-Ashwat al-'Arabiyyah wa Makharijaha

    Directory of Open Access Journals (Sweden)

    Amrah Muhammad Kasim

    2015-12-01

    Full Text Available This writing discusses on al-ashwat al-‘arabiyyah that is known with “phonetic” term. It talks and interprets makharij al-huruf or place for producing sounds and also processing production of sounds by parts of mouth in Arabic language. The problems of sounds and its systems in Arabic language have been conducted by the scholars of al-ashwat al-‘arabiyyah attractively, neatly, and detail and gotten ahead the phonetic western scholars. Part of their analysis results formulate the study about al-ashwat al-sakinah (al-Shamit is known with vocal and consonant sounds in research questions shawait – shawamit. Ibnu Jinni has formulated “harakat”(wowel in Arabic language and dimension of letter  mad and liyn on alif  letter - waw - ya’ (ا و ي, from these letters create  harakat fathah, dammah, and kasrah. Moreover, in this writing also exist the description of hija’i letters and its makhraj that are correct from parts of mouth and the unity of coordinative sounds that produce sounds in morphemes arrangement, in one word that produces meaning. The result of phonological study has divided al-ashwat to be kinds of sound like the pronounced sounds, produced sounds from mouth, and heard sound.

  14. Editorial: Cartas al Editor

    Directory of Open Access Journals (Sweden)

    Guillermo Llanos

    2006-06-01

    Full Text Available En todas las revistas biomédicas del mundo existe una sección habitual denominada como el título de este editorial y que en Colombia Médica la llamamos correspondencia. Este espacio tiene como objetivo fundamental que los lectores escriban a los autores (investigadores comentando los artículos que se han publicado en números anteriores de la revista. Las cartas son, entonces, breves comentarios de desacuerdo o acuerdo (conceptual, metodológico, interpretativo sobre falencias ubicadas por un lector alerta al tema debatido en cualquiera de las secciones como en los artículos originales, editoriales, revisiones, presentación de casos, etc. publicados previamente en la revista. Las cartas deben permitir el intercambio de opiniones y formas de pensar y analizar los problemas planteados entre los autores y los lectores. En ocasiones una serie de cartas motivadas por un artículo original puede ser tan o más interesante como el artículo que generó la correspondencia. Las cartas son también un formato adecuado para comunicar un hecho novedoso de una observación clínica juiciosa no descrita antes. Un ejemplo de ello es la carta de un gineco-obstetra australiano cuando informó a Lancet los primeros efectos adversos informados de la talidomida. Colombia Médica, a pesar de mantener vigente esta sección, no ha sido muy afortunada en establecer una buena cultura del envío de cartas al editor. Pero últimamente han llegado juiciosas observaciones a las cuales se les ha dado prioridad en su publicación. Toda carta que comenta los hallazgos de un artículo es enviada a los autores para su respuesta, porque ello genera el debate académico buscado, y luego se publican, tanto la carta como su respuesta. El Estilo Vancouver recomienda que la carta y su respuesta deban ser breve, no pasar de dos o tres párrafos y contener sólo cuatro o cinco referencias. En lo posible (a menos que sea indispensable no presentar ni cuadros ni gráficos. El t

  15. Design of a costing system and valuation for the production of radiopharmaceutical FDG and the provision of radiology service with PET-CT to Caja Costarricense del Seguro Social, for the Centro de Investigacion en Ciencias Atomicas, Nucleares y Moleculares of the Universidad de Costa Rica

    International Nuclear Information System (INIS)

    The cost of the radiopharmaceutical FDG and of the service of diagnostic studies with PET-CT technology are determined through the design of a costing system. The aim has been to provide to the Centro de Investigacion en Ciencias Atomicas, Nucleares y Moleculares (Cicanum), an appropriate decision making as to definition of sale prices in the CCSS-Cicanum Project. This project has arisen of the partnership between the Cicanum and Caja Costarricense del Seguro Social (CCSS), in order to satisfy the needs in the area of oncology; specifically, the acquisition of PET-CT technology. Diagnostic studies can be performed with this technology to detect and measure the evolution of different types of cancer. Additionally, the realization of these studies have required the acquisition of a cyclotron for the production of the radiopharmaceutical called FDG by Cicanum. The theoretical and conceptual aspects relating to atomic, nuclear and molecular sciences are defined, as well as the contribution of the Universidad de Costa Rica for research in these areas and perspectives of costing systems. The administrative-accounting area of Cicanum is described and diagnosed, as well as of the CCSS-Cicanum Project, to know its scope, management and allocation of costs. The situation diagnosed in the administrative-accounting area of Cicanum and the CCSS-Cicanum Project are analyzed, through the tool Swotr (strengths, opportunities, weaknesses, threats and risks). A costing system is elaborated for Cicanum, based on work orders. The system has been developed in a series of electronic work sheets that have allowed to obtain costs associated with the production of the radiopharmaceutical FDG and the rendering of diagnostic services with PET-CT technology to the CCSS, as well as the definition of sales price. As a complement to the above, a master budget is done, which provides a financial vision of the project in its first ten years of operation

  16. Alexandria (Al Iskandariya), Egypt

    Science.gov (United States)

    2002-01-01

    This image of Alexandria was taken by astronauts on board the International Space Station in December 2000 using an Electronic Still Camera. A wider-angle view (STS088-739-90) taken from the Space Shuttle in December 1998 is available for context. Alexandria (Al Iskandariya) occupies a T-shaped peninsula and strip of land separating the Mediterranean from Lake Mariout. Originally the town was built upon a mole (stone breakwater) called Heptastadium, which joined the island of Pharos (see referenced website, below) to the mainland. Since then sedimentary deposits have widened the mole. Since 1905, when the 370,000 Alexandrians lived in an area of about 4 sq km between the two harbors, the city (population 4 million; see referenced website, below) has grown beyond its medieval walls and now occupies an area of about 300 sq km. The Mahmudiya Canal, connecting Alexandria with the Nile, runs to the south of the city and, by a series of locks, enters the harbor of the principal port of Egypt (note ships). The reddish and ochre polygons west of Lake Mariout are salt-evaporation, chemical-storage, and water-treatment ponds within the coastal lagoon. Reference Youssef Halim and Fatma Abou Shouk, 2000, Human impacts on Alexandria's marine environment: UNESCO, Coastal Regions and Small Islands Unit (CSI), Coastal Management Sourcebooks 2 (accessed December 20, 2000) Additional photographs taken by astronauts can be viewed at NASA-JSC's Gateway to Astronaut Photography of Earth. Image ISS001-ESC-5025 provided by the Earth Sciences and Image Analysis Laboratory, Johnson Space Center.

  17. Undulators at the ALS

    International Nuclear Information System (INIS)

    At Lawrence Berkeley Laboratory's (LBL) Advanced Light Source (ALS), three 4.6 m long undulators have been completed, tested and installed. A fourth is under construction. The completed undulators include two 5.0 cm period length, 89 period devices (U5.0s) which achieve a 0.85 T effective field at a 14 mm minimum gap and a 8.0 cm period length, 55 period device (U8.0) that reaches a 1.2 T effective field at a 14 mm minimum gap. The undulator under construction is a 10.0 cm period length, 43 period device (U10.0) that is designed to achieve 0.98 T at a 23 mm gap. Undulator magnetic gap variation (rms) is within 25 microns over the periodic structure length. Reproducibility of the adjustable magnetic gap has been measured to be within +/- 5 microns. Gap adjusting range is from 14 mm to 210 mm, which can be scanned in one minute. The 5.1 m long vacuum chambers are flat in the vertical direction to within 0.74 mm and straight in the horizontal direction to within 0.08 mm over the 4.6 m magnetic structure sections. Vacuum chamber base pressures after UHV beam conditioning are. in the mid 10-11 Torr range and storage ring operating pressures with full current are in the low 10-10 Torr range. Measurements show that the uncorrelated magnetic field errors are 0.23%, and 0.20% for the two U5.Os and the U8.0 respectively and that the field integrals are small over the 1 cm by 6 cm beam aperture. Device description, fabrication, and measurements are presented

  18. Epistemologi Sufi : Perspektif Al-Hakim Al-Tirmidzi

    Directory of Open Access Journals (Sweden)

    Ainul Abidin Shah

    2012-06-01

    Full Text Available Abstract : This article deals with some epistemological terms and theoretical postulates in the thought of a well known sufi  from the 9th century AD., Abu `Abdu’lLah Muhammad b. `Ali al-Hakim al-Tirmidzi, in order to describe the path (sulūk of a sufi towards the Ultimate Reality. In his own style thought about the sufis, placing an emphasis upon the strong relations between the walāyah (sufi  sainthood and the ma`rifa (sufi knowledge in the one side, and between the two a philosophy of Sufi Ethics. So, it is nothing out of the ordinary to fi nd his ethical inclinations as a dominant feature in every aspect of his epistemological thoughts. In addition, sufi epistemology in the perspective of philosophers focuses on enforcing the inner positive potents of the Self more so than to eliminate “the satanic influences” to the heart, because – in al-Tirmidzi’s argument is that the former would greatly improve the immunity of the self, and encourage it to tread consistently on the right path as well.Keywords :  Dhawq, eros, heart, exoteric, esoteric, al-Haqq, al-`Adl, al-Shidq Abstrak : Artikel ini membahas istilah-istilah epistemologi dan beberapa postulat dari seorang sufi terkenal abad ke-9, Abu `Abdu’lLahMuh ammad b.`Ali al-Hakim al-Tirmidzi, dalam upaya menggambarkan perjalanan suluk seorang sufi menuju Realitas Mutlak. Dalam gaya pemikirannya tentang sufi, kita menemukan bahwa figur ini cenderung  menekankan hubungan-hubungan yang kuat antara wal āyah (kewalian sufi dan ma‘rifa (pengetahuan sufi di satu sisi, dan antara keduanya dengan filsafat moral sufi.  Jadi, tidak aneh jika kita menemukan kecenderungan - kecenderungan etis yang dominan dalam setiap aspek  pemikiran epistemologinya. Dan epistemologi sufi dalam perspektif para filsuf lebih menekankan potensi inner Diri yang positif daripada menghapuskan “cara-cara syaitan” dalam hati, karena - menurut pendapat al-Tirmidzi – ia akan meningkatkan

  19. El miedo al rey

    Directory of Open Access Journals (Sweden)

    François FORONDA

    2007-01-01

    Full Text Available La peur du roi. Sources et premières réflexions à propos d’une émotion aristocratique dans la Castille du XIVe siècleFace à un roi qui à présent pousse les effets de son ire jusqu’au meurtre pour faire le vide autour de lui et imposer sa différence souveraine, ses parents et les riches hommes, soit les principaux visés par cette politique de l’arbitraire qui enfreint les règles du jeu autant qu’elle contribue à les redéfinir, disent la peur (metus qu’ils ressentent, qu’ils utilisent aussi afin de donner à leur stratégie de pouvoir un fondement légitime. Et l’expression de cette émotion politique, qui tend à se muer en un stéréotype d’un discours aristocratique d’opposition, surtout présente dans les chroniques, mises ici en relation ici avec d’autres sources, notamment des correspondances, marque profondément l’histoire des relations souvent conflictuelles au sein de cette compagnie en définitive très étroite pendant un siècle, de la fin du XIIIe siècle à la fin du XIVe siècle. Cet article se propose d’ébaucher une première réflexion sur le sujet et d’en présenter les principales sources.El miedo al rey. Fuentes y primeras reflexiones acerca de una emoción aristocrática en la Castilla del siglo XIVFrente a un rey que ahora lleva hasta la muerte los efectos de su ira para hacer el vacío entorno a su persona e imponer su soberana, sus parientes y ricos hombres, o sea los principales afectados por esta política de la arbitrariedad que rompe las reglas del juego a la vez que contribuye a redefinirlas, dicen el miedo (metus que sienten, que utilizan también para darle a su estrategia de poder un fundamento legítimo. Y la expresión de esta emoción política, que tiende a convertirse en un estereotipo de un discurso aristocrático de oposición, sobre todo presente en la crónicas, aquí puestas en relación con otras fuentes, en particular cartas, marca profundamente la historia de

  20. El pensamiento frente al arte

    OpenAIRE

    Bergmann, Antonio

    2012-01-01

    Es un hecho histórico de gran importancia el que el hombre haya creado arte antes de haberse dedicado a la filosofía. Al mencionar esto no pienso en las pinturas pre-históricas que se encuentran en las cuevas de España y en el Sur de Francia, sino ante todo, en el arte egipcio y mesopotámico.  En Egipto y Mesopotamia --y Mesopotamia parece ser la región más importante -no nació sino que se creó al hombre humano, al hombre como ser arquitectónico.

  1. Consoer et al PFOS dataset

    Data.gov (United States)

    U.S. Environmental Protection Agency — This ScienceHub entry was developed for the published paper: Consoer et al., 2016, Toxicokinetics of perfluorooctane sulfonate in rainow trout (Oncorhynchus...

  2. DESAFÍOS AL ORDEN

    Directory of Open Access Journals (Sweden)

    Evangelina De los Rios

    2012-03-01

    Full Text Available Fradkin, Raúl y Gelman, Jorge (Compiladores, Desafíos al Orden. Política y sociedades rurales durante la Revolución de Independencia, Prohistoria ediciones, Rosario, 2008, 157 pp.

  3. Seltzer_et_al_2016

    Data.gov (United States)

    U.S. Environmental Protection Agency — This dataset supports the modeling study of Seltzer et al. (2016) published in Atmospheric Environment. In this study, techniques typically used for future air...

  4. Note intorno al Teatro Vagante

    OpenAIRE

    Scabia, Giuliano

    2013-01-01

    In questo testo-intervista Scabia traccia, alternando racconto e riflessione, un percorso che abbracciatutta l'attività del suo Teatro Vagante: dalle azioni nelle scuole degli inizi degli anni '70 - agli alboridell'Animazione Teatrale, che anche da qui prese le mosse - al lavoro all'Università di Bologna,organica continuazione di quei primi esperimenti. Dalla poesia alle azioni teatrali in strada;dall'architettura della pagina al respiro della parola detta in presenza ; dalle aule ...

  5. Information als Gegenstand von Informationskompetenz

    OpenAIRE

    Ingold, Marianne

    2011-01-01

    Der Informationsbegriff als zentraler Gegenstand von Informationskompetenz wird in der bibliothekarischen Diskussion in der Regel nicht explizit thematisiert, sondern lässt sich aus Fachliteratur und Bibliothekspraxis nur implizit erschließen. Eine theoretische Beschäftigung mit dem Informationsbegriff ist jedoch unabdingbar, soll das Konzept "Informationskompetenz" auch außerhalb des bibliothekarischen Kontextes verständlich und nutzbar gemacht werden. Im vorliegenden Text, der sich als Beit...

  6. Response to Brosch et al.

    OpenAIRE

    Pihlajamäki, Jussi; Lerin, Carles; Kaminska, Dorota; Venesmaa, Sari; Itkonen, Paula; Boes, Tanner; Floss, Thomas; Schroeder, Joshua; Dearie, Farrell; Crunkhorn, Sarah; Burak, Furkan; Jimenez-Chillaron, Josep C.; Kuulasmaa, Tiina; Miettinen, Pekka; Park, Peter J.

    2012-01-01

    We would like to respond to Brosch et al. regarding our manuscript “Expression of the Splicing Factor Gene SFRS10 Is Reduced in Human Obesity and Contributes to Enhanced Lipogenesis” (Pihlajamäki et al., 2011b). Brosch performed RT-PCR in liver samples from 13 lean and 34 obese individuals, finding no differences in SFRS10 or LPIN1 expression. We wish to address points raised by Brosch, including experimental strategy and analysis of human SFRS10 expression.

  7. D’al-Ẓāhir Baybars à ʿAlī al-Zaybaq

    OpenAIRE

    Dorlian, Georges

    2014-01-01

    « Toi par le courage, moi par la filouterie » aimait répéter Baṭṭāl à la princesse Ḏāt al-Himma, comme pour délimiter les espaces d’action revenant à chacun. Et d’ajouter, pour mieux dépeindre son rôle : « Mon métier n’est pas celui de la guerre, des armes et des exploits, mais celui de la ruse et de la fourberie dans un château fort ou une forteresse. » Baṭṭāl était un ʿayyār adjoint à la princesse Ḏāt al-Himma et à ʿAbd al-Wahhāb pour servir leur cause sublime et leur idéal chevaleresque. E...

  8. Strain sensing with sub-micron sized Al-AlOx-Al tunnel junctions

    OpenAIRE

    Koppinen, P. J.; Lievonen, J. T.; Ahlskog, M.; Maasilta, I. J.

    2009-01-01

    We demonstrate a local strain sensing method for nanostructures based on metallic Al tunnel junctions with AlOx barriers. The junctions were fabricated on top of a thin silicon nitride membrane, which was actuated with an AFM tip attached to a stiff cantilever. A large relative change in the tunneling resistance in response to the applied strain (gauge factor) was observed, up to a value 37. This facilitates local static strain variation measurements down to ~10^{-7}.

  9. Insurances in the petroleum industry; Seguros na industria do petroleo

    Energy Technology Data Exchange (ETDEWEB)

    Lima, Juliana S.F. [IRB-Brasil Resseguros, Rio de Janeiro, RJ (Brazil)

    2004-07-01

    This work shows an overview, focused mainly Brazil, of the insurance branch that deals with the upstream activities. The oil industry represents a substantial exposition for insurance international market because of the catastrophic nature of its risks, that entails a capacity dependency. The most of Insurance split into several insurers and reinsurer and are distributed into several markets and several regions of the world. The oil and gas branch of insurance covers: physical damage to equipment (platforms, vessels, drill ship etc), build, operation and liability in consequence of claims. The contract of insurance is complex because it is specific and demands much negotiation of rates and conditions. Moreover it is needed to find reliable insurers which want to accept the risk. There are alternatives to insurance market created by oil companies such as Captive and Mutual companies. The insurance international market built a complex and customized structure in order to be able to offer coverage to upstream risks and to participate in the amounts related to oil and gas production. (author)

  10. Comércio Marítimo Seguro

    OpenAIRE

    Beja, João

    2012-01-01

    O valor da paz e segurança nos oceanos traduz um sentimento de tranquilidade necessário à prosperidade económica global. O comércio marítimo tem sido desde a antiguidade uma preocupação estratégica dos Estados num período onde existe uma elevada dependência de produtos que são transportados pela via marítima com destaque para os produtos energéticos. Uma interrupção nas linhas de comunicação marítima seria desastrosa nas consequências económicas de qualquer Estado. A perceção errónea da apare...

  11. Seguros, crisis, regulación y disciplina del mercado

    OpenAIRE

    Ferro, Gustavo; Castagnolo, Fermando

    2010-01-01

    The insurance industry, in its different business lines, concentrates 11 percent of the World financial assets. As in all the remaining financial activities, it is object of comprehensive regulation of structure, conduct and performance (with diverse emphasis), besides social scrutiny. The objective of the present article is to discern the phenomena behind the recent financial crisis and its impact in the insurance industry, and to contribute to the debate on more/less market and/or scarce/e...

  12. Seguros, crisis, regulación y disciplina del mercado

    OpenAIRE

    Ferro, Gustavo; Castagnolo, Fermando

    2010-01-01

    The insurance industry, in its different business lines, concentrates 11 percent of the World financial assets. As in all the remaining financial activities, it is object of comprehensive regulation of structure, conduct and performance (with diverse emphasis), besides social scrutiny. The objective of the present article is to discern the phenomena behind the recent financial crisis and its impact in the insurance industry, and to contribute to the debate on more/less market and/or scarce/ex...

  13. Buenas prácticas de cuidados : creando procesos seguros

    OpenAIRE

    Jurado Balbuena, Juan José; Marcos Calvo, María Pilar; Serrano Molina, Lucía

    2010-01-01

    En este capítulo detallamos 5 actividades de cuidados muy frecuentes en la actividad diaria de los centros de salud. Gran parte de estas actividades es desarrollada por los profesionales de enfermería. Queremos resaltar su importante papel en facilitar una atención segura a nuestros pacientes revisando cómo conseguir buenas prácticas de cuidados en el día a día. Las úlceras por presión son prevenibles en muchos casos. Las recomendaciones, según el grado de evidencia serían: Los cambios de pos...

  14. Edificio de seguros, en Tokio, Japón

    Directory of Open Access Journals (Sweden)

    Komuten Co. Ltd., Takenaka

    1969-03-01

    Full Text Available This building has been erected by the Daiichi Mutual Life Insurance Co., and involves a tall tower with offices, which is the core of the project; another building accommodating the dining hall, as well as 40 one family dwelling; a further 22 houses also devoted to dwellings, each containing 18 family flats; a building of 8 storeys with rooms for single men; and a sports and recreation zone, with a club, a football ground, swimming pool and tennis courts. The office tower has basements, and 18 storeys. Below ground there are stores, machine room, and a control room for the building's installations. Floors 1st to 4th have a reception zone, data section, first aid facility, and lecture rooms. Floors 5 to 18 are devoted to offices, management rooms, and other lecture halls. The builidngs are fitted with all modem technical facilities.Comprende el conjunto construido por la Daiichi Mutual Life Insurance Company: el edificio de oficinas, ubicado en una torre que constituye el corazón del complejo; una edificación destinada a salón-comedor; 40 viviendas unifamiliares; 22 edificaciones dedicadas a vivienda, con 18 apartamentos familiares cada una; una unidad de 8 plantas de altura, con habitaciones para solteros; y la zona deportiva-recreativa, con una serie de instalaciones: club, campo de fútbol, piscina, pistas de tenis, etc. La torre de oficinas, que consta de sótanos y 18 plantas de altura, alberga en sus 2 plantas de sótanos: los almacenes, salas de máquinas, salas de control para los servicios del edificio, etc.; en las plantas 1.ª a 4.ª se distribuyen: la zona de recepción, centro de elaboración de datos, dispensario, sala de conferencias, etc.; y las plantas 5.ª a 18.ª contienen: las oficinas, dirección, secciones ejecutivas, salas de conferencias, etc. El edificio está dotado de todos los adelantos técnicos que proporciona el momento actual.

  15. Epistemologi Sufi : Perspektif Al-Hakim Al-Tirmidzi

    OpenAIRE

    Ainul Abidin Shah

    2012-01-01

    Abstract : This article deals with some epistemological terms and theoretical postulates in the thought of a well known sufi  from the 9th century AD., Abu `Abdu’lLah Muhammad b. `Ali al-Hakim al-Tirmidzi, in order to describe the path (sulūk) of a sufi towards the Ultimate Reality. In his own style thought about the sufis, placing an emphasis upon the strong relations between the walāyah (sufi  sainthood) and the ma`rifa (sufi knowledge) in the one side, and between the two a philosophy of Sufi Et...

  16. Al clamor de les vuvuzeles

    Directory of Open Access Journals (Sweden)

    Javier Olivera Betrán

    2010-09-01

    Full Text Available El Mundial de Futbol de Sud-àfrica ha situat l’Àfrica al mapa mundial i ha mostrat al món el triomf de l’estil de futbol d’Espanya basat en la col·lectivitat, l’esperit d’equip, la humilitat, la cohesió interna i el joc bonic. L’organització africana, seriosa i eficaç, ha sabut mobilitzar i il·lusionar la població del país que ha participat en el mundial des de l’orgull de ser africà, amb l’esperit alegre, festiu i també reivindicatiu de la gent de l’Àfrica. Aquest esdeveniment suposa el llançament de la marca “Sud-àfrica” al món amb un avís clar d’optar a l’organització d’uns primers Jocs Olímpics a Àfrica (potser els de 2020. S’obre una finestra d’esperança al segle xxi per al continent perdut de la mà de l’esport espectacle tan universal, massiu, emocional i mercantil que també es juga a la canxa de la política i de l’economia.

  17. A united refinement technology for commercial pure Al by Al-10Ti and Al-Ti-C master alloys

    International Nuclear Information System (INIS)

    Because flake-like TiAl3 particles in Al-Ti-C master alloys prepared in a melt reaction method dissolve slowly when they are added into Al melt at 720 deg. C, Ti atoms cannot be released rapidly to play the assistant role of grain refinement, leading to a poor refinement efficiency of Al-Ti-C master alloys. A united refinement technology by Al-10Ti and Al-Ti-C master alloys was put forward in this paper. The rational combination of fine blocky TiAl3 particles in Al-10Ti and TiC particles in Al-Ti-C can improve the nucleation rate of α-Al. It not only improves the grain refinement efficiency of Al-Ti-C master alloys, but also reduces the consumption

  18. Modeling of the ALS linac

    International Nuclear Information System (INIS)

    The ALS injector linac is used for the Beam Test Facility (BTF) and the Damping Experiments when it is available in between the ALS filings. These experiments usually require higher quality beams and a better characterization than is normally required for ALS operations. This paper focuses on the beam emittance, energy tilt, and especially the longitudinal variation of the beam parameters. For instance, the authors want to avoid longitudinal variations at the low beta section of the BTF. On the other hand, a large energy tilt is required for post-acceleration compression of the bunch using an alpha magnet. The PARMELA code was modified to calculate and display longitudinal variations of the emittance ellipse. Using the Microsoft Development Studio under Windows NT environment the code can handle a much larger number of particles than was previously possible

  19. Conjuntivitis alérgica

    Directory of Open Access Journals (Sweden)

    Alejandro Tello Hernández

    2008-07-01

    Full Text Available La conjuntivitis alérgica es una de las causas más comunesde consulta externa en oftalmología y tiene una muy altarelación con las reacciones alérgicas sistémicas. Lafisiopatología de las reacciones de hipersensibilidad noshace entender los cuadros clínicos característicos de estapatología y sus diferentes grados de severidad. Eldiagnostico diferencial es amplio, sin embargo hay clavesdiagnosticas que nos orientan rápidamente al diagnosticocorrecto. El tratamiento se enfoca en las medidasfarmacológicas y no farmacológicas, utilizándolas enconjunto para disminuir la recurrencia del cuadro y prevenirsecuelas visuales.

  20. ALS:A SAIRASTAVAN TOIMINTATERAPIA

    OpenAIRE

    Vuorinen, Johanna

    2013-01-01

    Amyotrofinen lateraali skleroosi on harvinainen, etenevä sairaus. Sairaus surkastuttaa edetessään potilaan tahdonalaisen lihaksiston. Sairauden oireet näkyvät yleensä ensin raajoissa, mutta myös nielun lihaksista alkava bulbaarinen taudinmuoto on mahdollinen. ALS voi myös aiheuttaa frontotemporaalista dementiaa. Sairaus etenee yksilöllisesti, mutta sen kesto on yleensä noin 3-5 vuotta. Keski-Suomen keskussairaalassa ALS:n sairastuneen kuntoutukseen osallistuu moniammatillinen työryhmä, j...

  1. Generation and evolution of nanoscale AlP and Al13Fe4 particles in Al-Fe-P system

    International Nuclear Information System (INIS)

    Highlights: • Diffusion and gradual solid reactions between Al and FexP phases in Al-Fe-P alloy were investigated. • Nanoscale AlP clusters are in-situ generated and evolve during the whole process. • This novel Al-Fe-P alloy has an excellent low-temperature refining performance on hypereutectic Al-Si alloy. - Abstract: In this paper, the gradual solid reactions between Al and FexP phases in Al-Fe-P alloy were investigated. The results show that the whole reaction process undergoes four main stages: the diffusion of Al atom, the generation of (Al, Fe, P) intermediate compound, the precipitation of nano AlP and Al13Fe4 clusters and their growth to submicron particles. The microstructure of Fe-P particles evolves from the “egg-type”, the “sponge-type” to the “sesame-cake” structure. AlP and Al13Fe4 nano phases have in-situ generated and evolved during the whole process. The gradual reaction mechanism has been discussed. Furthermore, a novel Al-Fe-P alloy which contains (Al, Fe, P) intermediate compounds and nano AlP particles has been synthesized and its low-temperature refining performance on A390 alloy has also been investigated

  2. Dynamic Modeling of ALS Systems

    Science.gov (United States)

    Jones, Harry

    2002-01-01

    The purpose of dynamic modeling and simulation of Advanced Life Support (ALS) systems is to help design them. Static steady state systems analysis provides basic information and is necessary to guide dynamic modeling, but static analysis is not sufficient to design and compare systems. ALS systems must respond to external input variations and internal off-nominal behavior. Buffer sizing, resupply scheduling, failure response, and control system design are aspects of dynamic system design. We develop two dynamic mass flow models and use them in simulations to evaluate systems issues, optimize designs, and make system design trades. One model is of nitrogen leakage in the space station, the other is of a waste processor failure in a regenerative life support system. Most systems analyses are concerned with optimizing the cost/benefit of a system at its nominal steady-state operating point. ALS analysis must go beyond the static steady state to include dynamic system design. All life support systems exhibit behavior that varies over time. ALS systems must respond to equipment operating cycles, repair schedules, and occasional off-nominal behavior or malfunctions. Biological components, such as bioreactors, composters, and food plant growth chambers, usually have operating cycles or other complex time behavior. Buffer sizes, material stocks, and resupply rates determine dynamic system behavior and directly affect system mass and cost. Dynamic simulation is needed to avoid the extremes of costly over-design of buffers and material reserves or system failure due to insufficient buffers and lack of stored material.

  3. Cathodic electrochemiluminescence at double barrier Al/Al2O3/Al/Al2O3 tunnel emission electrodes

    International Nuclear Information System (INIS)

    Double insulating barrier tunnel emission electrodes were fabricated by adding a new pure aluminum layer upon oxidized aluminum electrodes by vacuum evaporation and thermally oxidizing the new aluminum layer in air at room temperature. Resulting Al/Al2O3/Al/Al2O3 electrodes allow the use of various aluminum alloys in the electrode body necessary for hardness or shaping ability of the electrode while obtaining the luminescence properties of pure aluminum oxide. During electrical excitation of luminescent labels by cathodic hot electron injection into aqueous electrolyte solution, the background noise is mainly based on high-field-induced solid-state electroluminescence and F-center luminescence of the outer aluminum oxide film. The more defect states and/or impurity centers the outer oxide film contains, the higher is the background emission intensity. The present electrode fabrication method provides a considerable improvement in signal-to-noise ratio for time-resolved electrochemiluminescence (TR-ECL) measurements when the original native oxide film of the electrode body contains luminescence centers displaying long-lived luminescence. The excellent performance of the present electrodes is demonstrated by extremely low-level detection of Tb(III) chelates, luminol, Pt(II) coproporphyrin and Tb(III) labels in an immunometric immunoassay by time-resolved electrochemiluminescence

  4. Derecho humano al agua y al saneamiento: derechos estrechamente vinculados al derecho a la vida

    OpenAIRE

    Fernández Aller, Maria Celia; Luis Romero, Elena de; Guzmán Acha, Cristina

    2013-01-01

    Los derechos humanos al agua y al saneamiento están íntimamente relacionados con otros derechos esenciales para la vida, como la alimentación o la salud. Su reconocimiento como derechos humanos en 2010 marca un hito importante en el respeto, protección y realización de estos derechos, que se encuentran seriamente vulnerados para una mayoría de población más vulnerable y empobrecida, sobre todo en el ámbito rural. Mucho camino queda aún para conseguir no sólo la disponibilidad de agua y saneam...

  5. Personalidad y tolerancia al dolor

    Directory of Open Access Journals (Sweden)

    JESÚS M.ª CARRILLO

    2005-01-01

    Full Text Available Se examina la relación de algunas variables de personalidad -EPQ-A (Eysenck y Eysenck, 1975, NEO-PI (McCrae y Costa, 1988 y STA -personalidad esquizotípica- y STB -personalidad límite-, de Claridge y Broks (1984, con la tolerancia al dolor experimental inducido mediante agua fría (cold pressor test, según el procedimiento de Staats, Heckmat y Staats (1998 en una muestra filtrada mediante un cuestionario sobre dolor crónico, dolores de cabeza, de espalda, artritis, síndrome de Raynaud, y personas bajo medicación. La tolerancia al dolor experimental se evaluó mediante el Umbral del dolor (tiempo en segundos desde la introducción de la mano en el agua hasta el primer informe de dolor, Mantenimiento del dolor (duración en segundos de la inmersión de la mano desde la aparición del umbral hasta su retirada y Tolerancia al dolor (duración total en segundos de la inmersión de la mano desde su introducción hasta su retirada. Un análisis correlacional, factorial y de regresión por pasos mostraron un efecto cruzado entre medidas de ansiedad (tolerancia negativa al dolor y psicoticismo, siendo psicoticismo junto con control emocional predictores de tolerancia positiva al dolor. En cuanto a psicoticismo, parece que son sus elementos de naturaleza paranoide y de "dureza" los que afectan a una percepción atenuada del dolor.

  6. 75 FR 62858 - United States, et al.

    Science.gov (United States)

    2010-10-13

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF JUSTICE Antitrust Division United States, et al. v. American Express Company, et al.; Proposed Final Judgment and... of America, et al. v. American Express Company, et al., Civil Action No. CV-10-4496. On October...

  7. 76 FR 38700 - United States, et al.

    Science.gov (United States)

    2011-07-01

    ... published in the Federal Register on October 13, 2010 (75 FR 62858); and (3) published summaries of the... Antitrust Division United States, et al. v. American Express Company, et al.; Public Comments and Response... Final Judgment in United States, et al. v. American Express Company, et al., Civil Action No....

  8. Al/Au/n-Si/Al surface barrier detector

    International Nuclear Information System (INIS)

    Charged-particle detectors are required to be operated sometimes in ambient light for applications like alpha counting and range finding. Detectors like Al/p-Si surface barrier with aluminium on the front side are found quite suitable. Gold/n-Si surface barrier detectors are not usable because of their excessive background photo current. These detectors, we fabricate for use in nuclear experiments, were given an aluminium coating on their gold side for use in room light. The Au/n-Si/Al surface barrier diodes were characterized for their electrical properties and performance as alpha detectors. Detectors showing good energy resolution (∼ 50 KeV) were selected and provided with another thin reflecting coat of aluminium on their front sides

  9. Electrowinning Al from Al2S3 in Molten Salt

    OpenAIRE

    Xiao, Y; Van der Plas, D.W.; Bohte, J.; Lans, S.C.; Van Sandwijk, A.; Reuter, M.A.

    2007-01-01

    In order to investigate an alternative process for the production of primary aluminum via a sulfide intermediate, the electrochemical behavior of Al2S3 in molten salt has been studied on a laboratory scale. The effects of electrolyte composition, temperature, and cell design on the cell performance have been investigated. Temperature and cryolite addition have positive effects on the current density. Increasing the anode-to-cathode surface area (closer to unity) and shortening the interelectr...

  10. Thermal conductance of a pressed Al-Al contact

    Science.gov (United States)

    Wanner, M.

    1981-01-01

    Thermal conductance of a screw-fastened joint between two blocks of Al-alloys has been measured. An AlMg4.5Mn-block, the end of which is cooled by liquid helium, constitutes the upper part of the sample and the contact is formed at the face surface of a cylindrical extension of that block onto which a cylinder, made of AlMgSi1, is pressed by means of a copper-nickel screw. Pressing of the contact was carried out at room temperature by applying a defined torque, M, to the fastening screw. Three samples of the same shape but with differently treated surfaces of contact (machined flat, electro-chemically polished, with gold plated contacts) were studied. The results showed that the machined flat surfaces yield the best contact and that the contact conductance (measured in the range 4.2 K to 1.8 K) of all samples increased with increasing torque. In addition to thermal measurements, a study of the electrical conductance would be very interesting to determine the different contributions of phonon and electron heat conduction by means of the Wiedemann-Franz law. The work is useful for the GIRL (German Infra-Red Laboratory) space experiment.

  11. Type idéal

    OpenAIRE

    Paugam, Serge

    2014-01-01

    L’usage de types idéaux constitue pour Max Weber une démarche sociologique fondamentale. Le type idéal est pour lui un moyen de comprendre le sens que les individus donnent à leurs expériences vécues, ce qui conduit à mettre ces dernières en relation avec l’organisation de la société à un moment historique de son évolution. Définir un type idéal ne signifie pas repérer sa forme majoritaire d’un point de vue statistique, mais discerner à partir des formes historiques des sociétés contemporaine...

  12. Al-Hadith Text Classifier

    Directory of Open Access Journals (Sweden)

    Mohammed Naji Al-Kabi

    2005-01-01

    Full Text Available This study explore the implementation of a text classification method to classify the prophet Mohammed (PBUH hadiths (sayings using Sahih Al-Bukhari classification. The sayings explain the Holy Qur`an, which considered by Muslims to be the direct word of Allah. Present method adopts TF/IDF (Term Frequency-Inverse Document Frequency which is used usually for text search. TF/IDF was used for term weighting, in which document weights for the selected terms are computed, to classify non-vocalized sayings, after their terms (keywords have been transformed to the corresponding canonical form (i.e., roots, to one of eight Books (classes, according to Al-Bukhari classification. A term would have a higher weight if it were a good descriptor for a particular book, i.e., it appears frequently in the book but is infrequent in the entire corpus.

  13. The effect of Si in Al-alloy on electromigration performance in Al filled vias

    Science.gov (United States)

    Kageyama, Makiko; Hashimoto, Keiichi; Onoda, Hiroshi

    1998-01-01

    Electromigration performance of vias filled with Al-Si-Cu alloys on Ti glue layers was investigated in comparison with W-stud vias. In Al-Si-Cu filled vias, voids were formed at only a few locations in the test structure, while voids were formed at every via in W-stud via chains. It is supposed that Al moves through the Al-Si-Cu via during electromigration in spite of the existence of a glue layer at the via bottom. This phenomenon was observed only in the vias filled with Al-Si-Cu alloy. Al movement was prohibited in Al-Cu filled vias. In Al-Si-Cu filled vias, an Al-Ti-Si alloy was formed at the via bottom while Al3Ti was formed at Al-Cu filled vias. Al is speculated to move through this Al-Ti-Si alloy during electromigration.

  14. Lernhabitus als Grundlage lebenslanger Lernprozesse

    OpenAIRE

    Herzberg, Heidrun

    2005-01-01

    'In diesem Artikel wird die These vertreten, dass das Habitus-Konzept von Bourdieu, wenn es bei der Analyse von lebenslangen (biographischen) Lern- und Bildungsprozessen angewandt wird, einer biographietheoretischen Reformulierung bedarf. Vor diesem Hintergrund wird das eigene Konzept des biographischen Lernhabitus vorgestellt. Als Ergebnis einer Zwei-Generationen-Studie im Rostocker Werftarbeitermilieu können zwei deutlich voneinander zu entscheidende Lernhabitusmuster präsentiert werden. In...

  15. Utilitarismus als Methode der Ethik

    OpenAIRE

    Daniels, Malte Cornelius

    2011-01-01

    In diesem Buch schlage ich eine radikal neuartige Sicht auf den Utilitarismus vor. Meine Hauptthese ist, dass der Utilitarismus selbst keine vollständige normative Theorie ist, aus der sich per se Handlungsbewertungen ableiten ließen, sondern normativ untersättigt und neutral ist. Sein normativer Gehalt ist vollständig abhängig von angenommenen Nutzenfunktionen. Jede konsistente Menge von moralischen Regeln (Moralsystem) kann, wie ich im Anhang beweise, als ein Spezialfall des Utilitarismus i...

  16. Vormundschaftsrecht als Grundlage politischer Herrschaft

    Directory of Open Access Journals (Sweden)

    Arne Duncker

    2006-07-01

    Full Text Available In ihrer beachtlichen und sehr gewissenhaft dokumentierten Arbeit über vormundschaftliche Regentschaften im 16. und 17. Jahrhundert beschreibt Pauline Puppel unter ausführlichem Bezug auf zeitgenössische Literatur und Archivalien sowohl die allgemeine Rechtslage im damaligen Reich als auch die Anwendungsfälle in Hessen, wo zwischen 1500 und 1700 insgesamt viermal eine Landgräfin als Vormünderin des Fürsten zur Regentin ihres Landes wurde. Dies steht exemplarisch für eine bereits in der Frühen Neuzeit mögliche und nicht einmal ganz seltene Form politischer Frauenherrschaft, die bisher oft nicht hinreichend gewürdigt wurde. Puppels Untersuchung ist in zwei Hauptteile gegliedert. Der erste Teil (Das juristische Regelwerk“, S. 34-143 behandelt die zeitgenössischen Rahmenbedingungen der durch Frauen ausgeübten Vormundschaft und Regentschaft. Der zweite Abschnitt („Die Landgräfinnen von Hessen als Regentinnen“, S. 144-307 befasst sich mit der Ausfüllung dieser Regeln durch konkrete Fallbeispiele in Gestalt von Leben und Regentschaft der regierenden Landgräfinnen von Hessen.

  17. Microstructure of interaction interface between Al-Si, Zn-Al alloys and Al2O3p/6061Al composite

    Institute of Scientific and Technical Information of China (English)

    许志武; 闫久春; 吕世雄; 杨士勤

    2004-01-01

    Interaction behaviors between Al-Si, Zn-AI alloys and Al2O3p/6061AI composite at different heating temperatures were investigated. It is found that Al2O3p/6061Al composite can be wetted well by AlSi-1, AlSi-4 and Zn-Al alloys and an interaction layer forms between the alloy and composite during interaction. Little Al-Si alloys remain on the surface when they fully wet the composite and Si element in Al-Si alloy diffuses into composite entirely and assembles in the composite near the interface of Al-Si alloy/composite to form a Si-rich zone. The microstructure in interaction layer with Si penetration is still dense. Much more residual Zn-Al alloy exists on the surface of composite when it wets the composite, and porosities appear at the interface of Zn-Al alloy/composite. The penetration of elements Zn, Cu of Zn-Al alloy into composite leads to the generation of shrinkage cavities in the interaction layer and makes the microstructure of Al2 O3p/6061A1 composite loose.

  18. The Structure and Main Issues of “al-Tasdid” of Husam al-Din al-Syghnaqi

    Directory of Open Access Journals (Sweden)

    Daniyar B. Shalkarov

    2015-07-01

    Full Text Available The study of the theological maturidia in the Central Asia was developed by the majority of outstanding scientists in the Turkic area and was known from generation to generation with manuscripts. One of these famous scientists was Abu al-Mu‘in al-Nasafi. In Central Asia, in the branch of the Islamic kalam theology there were the works “Tabsira al-Adilla”, “Bahr al-Kalam”, “al-Tamheed li qawa‘id al-Tawheed”, which considered the issues of maturidia theological study. In the XIV century the great scientist from Syghanaq Husam al-din al-Syghnaqi made a detailed research of the work “al-Tamheed li qawa‘id al-Tawheed” of Abu al-Mu‘in al-Nasafi and wrote the work “al-Tasdeed fi sharh al-Tamheed” by giving a full explanation of all questions relating to the issue. This article considers the content and the kept versions in the World libraries and the importance of this work for today. There is a different information about the original version of the manuscript. The first, the manuscript is by Amca Zade Huseyn 309 number, written by Husam al-din al-Syghnaqi personally and kept in the turkic library. This information is written in the work “Syghanaq Sanlagi/ The star of the Syghanaq” of Shamshaddin Kerim, the second manuscript is kept in the Egypt Arabic Republic, in the library “Dar al-Kutub Misrya”. It is written in this manuscript, that the manuscript was published in 1125 according hizhra calendar. Therefore the article gives an explanation of the main maturidia kalam principles, which cover five chapters of the work. 

  19. Armaflex in Burj al Arab; Armaflex im Burj al Arab

    Energy Technology Data Exchange (ETDEWEB)

    Steiner, B.

    2003-07-01

    This article describes the Burj al Arab in Dubai, the unique seven-star high-rise hotel. The construction of the hotel, that is built on 250 piles driven into the sand of an artificial island in the Persian Gulf, is described. In particular, various special materials used in the building are described, as are the luxurious fittings and furnishings of the hotel. The cooling and air-conditioning installations that are necessary as a result of the desert climate of Dubai are described and the use of 'Armaflex' elastomer insulating material for the insulation of refrigeration machines and cold-water piping is discussed.

  20. De los derechos humanos al derecho al aborto

    OpenAIRE

    Zúñiga Fajuri, Alejandra

    2013-01-01

    Ninguna otra persona, en ninguna situación, es obligada a realizar el acto supererogatorio que se exige a la mujer embarazada. Aun cuando una adecuada aplicación de la teoría general de los derechos humanos permite reconocer el derecho al aborto durante los dos primeros trimestres del embarazo sobre la base de que los derechos sólo pueden restringirse por mor de los propios derechos. En esa línea, se intenta responder a quienes sostienen que el problema del aborto no puede resolverse pues no ...

  1. Friction Stir Welding of Al 5052 with Al 6061 Alloys

    OpenAIRE

    Kumbhar, N. T.; Bhanumurthy, K.

    2012-01-01

    Friction stir welding (FSW), a solid-state joining technique, is being extensively used in similar as well as dissimilar joining of Al, Mg, Cu, Ti, and their alloys. In the present study, friction stir welding of two aluminium alloys—AA6061 and AA5052—was carried out at various combinations of tool rotation speeds and tool traverse speeds. The transverse cross-section of the weld was used for optical as well as electron microscopy observations. The microstructural studies were used to get an ...

  2. Memahami Tasawuf Ibnuu Arabi dan Ibnuu al Farid: Konsep al Hubb Illahi, Wahdat al Wujud, Wahdah al Syuhud dan Wahdat al Adyan

    Directory of Open Access Journals (Sweden)

    Muhammad Robith Fuadi

    2013-12-01

    Full Text Available Kaum sufi menapaki jalan yang berbeda untuk menuju hakikat, mereka tidak menggunakan akal dan rasio untuk sampai pada hakikat. Akan tetapi, akal bukan satu-satunya jalan untuk menuju hakikat. Karena kita sering melihat sesuatu yang di luar jangkauan akal dalam hidup ini. Jalan yang ditempuh kaum sufi untuk menuju hakikat seperti kasyf, dzauq, 'iyan, musyahadah dan sebagainya dinilai sebagai sesuatu yang samar, tidak mempunyai batasan dan kaidah pasti, bahkan sering kali bercampur dengan igauan, mimpi, khayalan dan angan-angan. Tapi yang perlu kita ingat adalah bahwa media-media tersebut telah mampu menuntun manusia untuk memecahkan sesuatu yang tidak bisa dipecahkan oleh akal dan hukum-hukum fisika. Tulisan ini akan mengkaji gagasan-gagasan dua tokoh tasawuf besar yaitu Ibnu Arabi dan Ibnu al-Farid yang hidup  pada abad keenam dan ketujuh Hijriah. Tulisan ini secara spesifik akan mengkaji tiga gagasan penting ke dua tokoh tersebut. Yaitu al hubb al Ilahi, wahdat al Wujud dan wahdat al adyan.

  3. The Eminent Turkish Logician al-Abhari and "al-Risalah fî al-Kavâid al-Mantıqiyyah"

    OpenAIRE

    el-EBHERÎ, Esîrüddîn Mufaddal b. Ömer es-Semerkandî

    2014-01-01

    Athar al-Din al-Abhari is an important figure whose works had been textbooks in the Ottoman schools for centuries al-Abhari who wrote so many books in such areas as philosophy, mathematics, astronomy and logic is especially known for his books Hidayat al-Hikmat and İsaghuji He took logic into account in all of his works of philosophy. He also wrote some books and treatises specially concerning logical problems. Here, we are going to present the Turkish translation of his al-Risâlah fi al-Kava...

  4. United modification of Al-24Si alloy by Al-P and Al-Ti-C master alloys

    Institute of Scientific and Technical Information of China (English)

    韩延峰; 刘相法; 王海梅; 王振卿; 边秀房; 张均艳

    2003-01-01

    The modification effect of a new type of Al-P master alloy on Al-24Si alloys was investigated. It is foundthat excellent modification effect can be obtained by the addition of this new type of A1-P master alloy into Al-24Simelt and the average primary Si grain size is decreased below 47 μm from original 225 μm. It is also found that theTiC particles in the melt coming from Al8Ti2C can improve the modification effect of the Al-P master alloy. Whenthe content of TiC particles in the Al-24Si melt is 0.03 %, the improvement reaches the maximum and keeps steadywith increasing content of TiC particles. Modification effect occurs at 50 min after the addition of the Al-P master al-loy and TiC particles, and keeps stable with prolonging holding time.

  5. The Al-Al3Ni Eutectic Reaction: Crystallography and Mechanism of Formation

    Science.gov (United States)

    Fan, Yangyang; Makhlouf, Makhlouf M.

    2015-09-01

    The characteristics of the Al-Al3Ni eutectic structure are examined with emphasis on its morphology and crystallography. Based on these examinations, the mechanism of formation of this technologically important eutectic is postulated. It is found that a thin shell of α-Al forms coherently around each Al3Ni fiber. The excellent thermal stability of the Al-Al3Ni eutectic may be attributed to the presence of this coherent layer.

  6. Reply to Pachai et al.

    Science.gov (United States)

    Harrison, William J; Bex, Peter J

    2016-05-01

    Peripheral vision is fundamentally limited by the spacing between objects. When asked to report a target's identity, observers make erroneous reports that sometimes match the identity of a nearby distractor and sometimes match a combination of target and distractor features. The classification of these errors has previously been used to support competing 'substitution' [1] or 'averaging' [2] models of the phenomenon known as 'visual crowding'. We recently proposed a single model in which both classes of error occur because observers make their reports by sampling from a biologically-plausible population of weighted responses within a region of space around the target [3]. It is critical to note that there is no probabilistic substitution or averaging process in our model; instead, we argue that neither substitution nor averaging occur, but that these are misclassifications of the distribution of reports that emerge when a population response distribution is sampled. This is a fundamentally different way of thinking about crowding, and on this basis we claim to have provided a mechanism unifying categorically distinct perceptual errors. Our goal was not to model all crowding phenomena, such as the release from crowding when target and flanks differ in color or depth [4]. Pachai et al.[5] have suggested that our model is not unifying because it inaccurately predicts perceptual performance for a particular stimulus. Although we agree that our model does not predict their data, this specific demonstration overlooks the critical aspect of the model: perceptual reports are drawn from a weighted population code. We show that Pachai et al.'s [5] own data actually provide evidence for the population code we have described [3], and we suggest a biologically-plausible analysis of their stimuli that provides a computational basis for their 'grouping' account of crowding. PMID:27166690

  7. A negociação do sexo seguro na TV: discursos de gênero nas falas de agentes comunitárias de saúde do Programa Saúde da Família de Porto Alegre, Rio Grande do Sul, Brasil Safe sex negotiation on TV: gender discourses among female community health workers under the Family Health Program in Porto Alegre, Rio Grande do Sul, Brazil

    Directory of Open Access Journals (Sweden)

    Dora Lúcia Leidens Correa de Oliveira

    2004-10-01

    Full Text Available O artigo analisa, com base numa pesquisa realizada no ano de 2003, o entendimento de agentes comunitárias de saúde do Programa Saúde da Família de Porto Alegre, Rio Grande do Sul, Brasil, sobre a noção de "negociação de sexo seguro" veiculada nas campanhas de prevenção à AIDS que são endereçados às mulheres. A pesquisa tinha como foco de análise alguns dos anúncios televisivos que integraram as campanhas implementadas pelo Ministério da Saúde no Brasil, no período de 1994 a 2000. A análise foi informada pelas vertentes dos estudos feministas e culturais que se aproximam da perspectiva pós-estruturalista de Michel Foucault e tinha como objetivo produzir subsídios para uma leitura crítica desse tipo de estratégia educativa para a prevenção da AIDS, em especial no que se refere às relações de gênero ali representadas. A análise das informações sugere que os conhecimentos e práticas que circunscrevem o discurso da negociação do sexo seguro incorporam, re-produzem ou veiculam representações hegemônicas de masculinidade e feminilidade e que estas diferenciam e hierarquizam mulheres em relação aos homens e/ou diferenciam mulheres de outras mulheres, produzindo e/ou reforçando preconceitos e desigualdades.This paper analyzes the understanding among female community health workers in the Family Health Program in Porto Alegre, Rio Grande do Sul State, Brazil, concerning the notion of safe sex negotiation promoted by the Brazilian government in AIDS prevention campaigns targeting women. The paper is based on empirical data gathered in 2003. The study focused on TV advertisements used in campaigns by the Brazilian Ministry of Health from 1994 to 2000. The analytical approach was informed by feminist and cultural studies, taken from a post-structuralist and Foucauldian perspective. The research aimed to produce knowledge to support a critical reading of such education for HIV/AIDS prevention, especially concerning

  8. Al-Hadith Text Classifier

    OpenAIRE

    Mohammed Naji Al-Kabi; Ghassan Kanaan; Riyad Al-Shalabi; Saja I. Al- Sinjilawi; Ronza S. Al- Mustafa

    2005-01-01

    This study explore the implementation of a text classification method to classify the prophet Mohammed (PBUH) hadiths (sayings) using Sahih Al-Bukhari classification. The sayings explain the Holy Qur`an, which considered by Muslims to be the direct word of Allah. Present method adopts TF/IDF (Term Frequency-Inverse Document Frequency) which is used usually for text search. TF/IDF was used for term weighting, in which document weights for the selected terms are computed, to classify non-vocali...

  9. The ALS Gun Electronics system

    International Nuclear Information System (INIS)

    The ALS Gun Electronics system has been designed to accommodate gun with a custom made socket and high speed electronics circuit which is capable of producing single and multiple electron bunches with time jitters measured at better than 50 PS. The system generates the gated RF signal at ground level before sending it up to the 120 KV-biased gun deck via a fiber optic cable. The current pulse width as a function of grid bias, using an Eimac 8847A planar triode simulating an electron gun, was measured to show the relationship between the two parameters

  10. The ALS project: lessons learned

    Science.gov (United States)

    Monckton, Simon; Collier, Jack; Giesbrecht, Jared; Broten, Greg; MacKay, David; Erickson, David; Verret, Sean; Digney, Bruce

    2006-05-01

    In support of Canadian Forces transformation, Defence R&D Canada (DRDC) has established an ongoing program to develop machine intelligence for semi-autonomous vehicles and systems. Focussing on mine clearance and remote scouting for over a decade, DRDC Suffield has developed numerous UGVs controlled remotely over point-to-point radio links. Though this strategy removes personnel from potential danger, DRDC recognized that human factors and communications bandwidth limit teleoperation and that only networked, autonomous unmanned systems can conserve these valuable resources. This paper describes the outcome of the first autonomy project, Autonomous Land Systems (ALS), designed to demonstrate basic autonomous multivehicle land capabilities.

  11. Grainreifnementlimit of commercialpureAl inoculatedbyAl-Ti-C(B)masteralloys

    Institute of Scientific and Technical Information of China (English)

    En-zhao Wang; Xiang-fa Liu

    2015-01-01

    The grain reifnement limits of commercial pure Al inoculated by Al-5Ti-1B, Al-5Ti-0.25C and Al-5Ti-0.3C-0.2B master al oys were studied, and the inlfuence of melting temperature on the grain reifning performance of these three master al oys was investigated using a high scope video microscope (HSVM), a ifeld-emission scanning electron microscope (FESEM), an electron probe micro-analyzer (EPMA) and X–ray diffraction (XRD) method. Results show that there is a grain reifnement limit of commercial pure Al reifned by these three master al oys; with the same addition level of 1.5% under the present experimental conditions, the grain reifnement limits (smal est average grain size) of commercial pure Al reifned by Al-5Ti-1B, Al-5Ti-0.25C and Al-5Ti-0.3C-0.2B master al oys are 50 µm, 80 µm and 80 µm, respectively. In addition, with an increase in the melting temperature of the pure Al, the grain reifning performance of Al-5Ti-1B and Al-5Ti-0.25C master al oys decreases, but the grain reifning performance of Al-5Ti-0.3C-0.2B changes little.

  12. Analisis Salasilah Tarekat Shaykh Shams al-Din al-Sumatra’i

    OpenAIRE

    ROHAIMI RASTAM; MOHD SYUKRI YEOH ABDULLAH; YUSRI MOHAMAD RAMLI

    2015-01-01

    This article examines the spiritual chain (silsilah tariqah) of Shaykh Shams al-Din al-Sumatra’i (alt. al-Sumatrani), Qadi al-Malik al-‘Adil (Prime Minister and Mufti) of Aceh during the reign of Sultan Iskandar Muda in 1607 to 1627. The study is primarily based on his manuscript of Mir’at al-Muhaqqiqin as well as Shaykh Abdul Haqq Muhaddith Dahlawi’s Zad al-Muttaqin. By mapping the lineage of all data available, this study features al-Sumatra’is spiritual chain that consist of Qadiriyyah, Sh...

  13. Formaline of alternatieven als ontsmettingsmiddel voor broedeieren

    OpenAIRE

    Meijerhof, R.; Dijk, D. van

    1997-01-01

    Formaline wordt algemeen gezien als een goed middel om broedeieren te ontsmetten. Toch geeft ontsmetting met middelen als ozon en waterstofperoxyde vaak een iets beter broedresultaat. Een eventuele verklaring hiervoor is momenteel nog niet te geven.

  14. Benefits for Military Veterans with ALS

    Science.gov (United States)

    ... Chapters Certified Centers and Clinics Support Groups About ALS About Us Our Research In Your Community Advocate ... Veterans Resources for Military Veterans, Families & Survivors The ALS Association is working everyday to support people with ...

  15. AlON-SiAlON复合材料的制备及特性%Preparation and properties of AlON-SiAlON composites

    Institute of Scientific and Technical Information of China (English)

    山下敬; 山口明良

    2003-01-01

    为提高AlON陶瓷材料的抗氧化性能,制备了AlON-SiAl7O2N7复相材料.在1750℃、0.5 MPa的N2气氛中,保温2 h烧成不同Al2O3/AlN/Si3N4配比的原料得到不同AlON/SiAl7O2N7比的复相材料.因为在烧结SiAl7O2N7的过程中,蒸发-凝聚的同时伴随着SiO气体的挥发,因此很难得到致密的AlON-SiAl7O2N7复相材料.研究了AlON-SiAl7O2N7复相材料在1300℃、空气中的抗氧化性能,同时作为比较,研究了相同条件下单相的AlON材料的抗氧化性能.结果表明,AlON-SiAl7O2N7复相材料显示了较之单相的AlON陶瓷材料更好的抗氧化性能,这是因为氧化过程中所形成的含玻璃相的表面氧化层抑制了氧的向内扩散所致.

  16. Betaalde arbeid als verdringer van vrijwilligerswerk? Overbelasting als mogelijke verklaring

    Directory of Open Access Journals (Sweden)

    Angela Kok-Van Meer

    2014-06-01

    Full Text Available Do paid work activities displace volunteering? A potential explanation from role overload theoryRecent changes in Dutch society might lead to a shortage of volunteers. On the one hand, the demand for volunteers is increasing: in the social welfare domain because of governmental austerity policies and in other domains such as sports because of the higher supervision intensity of activities. On the other hand, the supply of volunteers is likely to decrease as more and more women and older workers are active in the labor market, which reduces the time that is available for volunteering. Role overload theory would suggest that the increasing labor participation rate of certain categories of workers goes along with a decline of participation in voluntary work. The secondary data analysis shows that various role loads (work, care for children living at home are associated with differences in participation in voluntary work. However, while a higher number of contractual work hours and hours spent on work-related training are negatively associated with volunteer work, care for children living at home is positively associated with volunteering. These results provide only limited support for role overload theory.Betaalde arbeid als verdringer van vrijwilligerswerk? Overbelasting als mogelijke verklaringDe afgelopen jaren hebben zich enkele maatschappelijke veranderingen voorgedaan, die wellicht tot schaarste op de Nederlandse vrijwilligersmarkt zouden kunnen leiden. Enerzijds neemt de vraag naar vrijwilligers toe doordat subsidieregelingen versoberen (bijvoorbeeld in zorg en welzijn en de begeleidingsintensiteit in bepaalde organisaties stijgt (bijvoorbeeld in sport. Anderzijds neemt het aanbod van vrijwilligers af doordat vrouwen en ouderen meer en langer op de arbeidsmarkt actief zijn, waardoor minder tijd beschikbaar is voor vrijwilligerswerk. In dit artikel wordt aan de hand van de role overload theorie nagegaan of het al dan niet deelnemen aan

  17. Thermoluminescence properties of AlN ceramics

    DEFF Research Database (Denmark)

    Trinkler, L.; Christensen, P.; Agersnap Larsen, N.; Berzina, B.

    The paper describes thermoluminescence (TL) properties of AlN:Y2O3 ceramics irradiated with ionising radiation. A high TL sensitivity of AlN:Y2O3 ceramics to radiation encouraged a study of the AlN ceramics for application as a dosimetric material. The paper presents experimental data on: glow...

  18. Electroplating Zn-Al Alloy Technology

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    The method of controlling separating anode and separating power source was used to perform orthogonal optimization for the parameters in electroplating Zn-Al alloy.The electroplating Zn-Al alloy technology was decided, in which the content of Al is about 12%-15%.

  19. The fabrication of 26Al targets

    International Nuclear Information System (INIS)

    Targets with up to 1.4x101626Al atoms have been fabricated. The artificial production of the 26Al nuclei via the reaction 26Mg(p, n)26Al was carried out at the cyclotrons in Juelich and Muenchen. The experimental procedures in the fabrication of these targets as well as some test measurements are described. (orig.)

  20. Nonstoichiometry of Al-Zr intermetallic phases

    Energy Technology Data Exchange (ETDEWEB)

    Radmilovic, V.; Thomas, G.

    1994-06-01

    Nonstoichiometry of metastable cubic {beta}{prime} and equilibrium tetragonal {beta} Al-Zr intermetallic phases of the nominal composition Al{sub 3}Zr in Al-rich alloys has been extensively studied. It is proposed that the ``dark contrast`` of {beta}{prime} core in {beta}{prime}/{sigma}{prime} complex precipitates, in Al-Li-Zr based alloys, is caused by incorporation of Al and Li atoms into the {beta}{prime} phase on Zr sublattice sites, forming nonstoichiometric Al-Zr intermetallic phases, rather than by Li partitioning only. {beta}{prime} particles contain very small amounts of Zr, approximately 5 at.%, much less than the stoichiometric 25 at.% in the Al{sub 3}Zr metastable phase. These particles are, according to simulation of high resolution images, of the Al{sub 3}(Al{sub 0.4}Li{sub 0.4}Zr{sub 0.2}) type. Nonstoichiometric particles of average composition Al{sub 4}Zr and Al{sub 6}Zr are observed also in the binary Al-Zr alloy, even after annealing for several hours at 600{degree}C.

  1. Topiramat als Phasenprophylaktikum - ein Fallbericht

    Directory of Open Access Journals (Sweden)

    Letmaier M

    2001-01-01

    Full Text Available Topiramat ist ein neues Antiepileptikum mit einem breiten Wirkspektrum. Aktuelle klinische Studien geben Hinweise darauf, daß Topiramat stimmungsstabilisierende Eigenschaften besitzt und somit effizient in der Behandlung der bipolaren affektiven Störung sein könnte. Vor dem Hintergrund dieser Studienberichte, behandelten wir eine 41jährige, erstmals vor 10 Jahren erkrankte Patientin mit der Diagnose einer therapierefraktären, bipolaren affektiven Störung (Rapid-Cycling mit Topiramat. Im Rahmen ihrer Erkrankung wurde die Patientin insgesamt 12mal stationär aufgenommen und meist aufgrund von akuten manischen Episoden behandelt. Dabei kamen seit 1991 folgende Phasenprophylaktika zur Anwendung: Carbamazepin, Valproat und Lamotrigin ? zuletzt nur mit mäßigem Erfolg. Daraufhin wurde zu Beginn einer neuerlichen manischen Episode ambulant eine Therapie mit Topiramat begonnen. Acht Wochen nach Therapiestart kam die Patientin in stationäre Behandlung. Der Aufenthalt dauerte weniger als drei Wochen; Topiramat wurde von der Patientin gut vertragen. Infolge eines belastenden Lebensereignisses kam es unter kontinuierlicher Therapie mit Topiramat zu einer Destabilisierung des psychischen Zustandsbildes (manische Symptome. Durch eine ambulante Erhöhung der Topiramatdosis bei gleichzeitiger Gabe von Risperidon und Clonazepam konnte jedoch eine neuerliche manische Episode erstmals ambulant behandelt werden. Die Patientin erhält derzeit 200 mg Topiramat pro Tag und ist seit mehr als 20 Monaten nahezu beschwerdefrei.

  2. Obtenção de gametas seguros por meio de associação de técnicas de processamento seminal para casais sorodiscordantes para HIV Safe gametes acquisition through association of seminal processing techniques with HIV serodiscordant couples

    Directory of Open Access Journals (Sweden)

    Priscila Queiroz

    2008-04-01

    ão interferiu nos parâmetros laboratoriais de ciclos de reprodução humana assistida. Por outro lado, demonstrou excelentes resultados na obtenção de gametas seguros para casais sorodiscordantes.PURPOSE: the propose of this study was to analyze the clinical and laboratorial parameters of patients submitted to human assisted reproduction techniques with association of sperm processing techniques, in order to remove virus particles from semen samples of couples in which men was infected by human immunodeficiency virus (HIV. METHODS: it was assessed 11 intracytoplasmatic sperm injection (ICSI cycles from couples whose men were HIV seropositive (HIV Group, and 35 cycles in which semen donors' samples were used in ICSI procedures (Control Group. Semen samples from Control Group were submitted to routine semen analysis, sperm wash and cryopreservation. The man from HIV Group received previous antibiotic therapy; the semen samples were analyzed routinely and prepared by sperm wash and density gradient method before cryopreservation. Those samples were evaluated to viral load and ICSI was performed when no HIV was detected. RESULTS: regards to semen analysis the groups were similar to sperm concentration and progressive motility. Nevertheless, the percentage of sperm with normal morphology were higher on Control Group (14.3% than HIV (5.8%; p=0.002. On embryo parameters assessment, the normal fertilization (CT: 74.7% and HIV: 71.7; p=0.838, respectively and good embryos rate (CT: 42.4% and HIV: 65.1%; p=0.312, respectively were comparable. On the other hand, the Control Group presented better clinic results than HIV Group (ongoing pregnancy rate: 52.9% versus 12.5%; p=0.054, and implantation rate: 42.6 versus 10.4%; p=0.059, respectively, however the differences were not statistically significant. After delivery, no seroconversion was observed on mother and child. CONCLUSIONS: the association of sperm processing techniques in order to remove HIV from semen samples does not

  3. Uso de los servicios de salud ambulatorios en la población peruana

    OpenAIRE

    Pedro Ypanaqué-Luyo; Mônica Martins

    2015-01-01

    Objetivos. Describir el perfil de necesidad y los patrones de utilización de los servicios de salud ambulatorios en la población afiliada y no afiliada a los seguros de salud en el Perú. Materiales y métodos. Estudio transversal descriptivo usando los datos de la Encuesta Nacional de Hogares 2011. Los datos se distribuyeron en cinco grupos: personas afiliadas al Seguro Social de Salud (EsSalud), Seguro Integral de Salud (SIS), Seguro de Salud de las Fuerzas Armadas y Policiales (FA-FP), los s...

  4. Systems Engineering Techniques for ALS Decision Making

    Science.gov (United States)

    Rodriquez, Luis F.; Drysdale, Alan E.; Jones, Harry; Levri, Julie A.

    2004-01-01

    The Advanced Life Support (ALS) Metric is the predominant tool for predicting the cost of ALS systems. Metric goals for the ALS Program are daunting, requiring a threefold increase in the ALS Metric by 2010. Confounding the problem, the rate new ALS technologies reach the maturity required for consideration in the ALS Metric and the rate at which new configurations are developed is slow, limiting the search space and potentially giving the perspective of a ALS technology, the ALS Metric may remain elusive. This paper is a sequel to a paper published in the proceedings of the 2003 ICES conference entitled, "Managing to the metric: an approach to optimizing life support costs." The conclusions of that paper state that the largest contributors to the ALS Metric should be targeted by ALS researchers and management for maximum metric reductions. Certainly, these areas potentially offer large potential benefits to future ALS missions; however, the ALS Metric is not the only decision-making tool available to the community. To facilitate decision-making within the ALS community a combination of metrics should be utilized, such as the Equivalent System Mass (ESM)-based ALS metric, but also those available through techniques such as life cycle costing and faithful consideration of the sensitivity of the assumed models and data. Often a lack of data is cited as the reason why these techniques are not considered for utilization. An existing database development effort within the ALS community, known as OPIS, may provide the opportunity to collect the necessary information to enable the proposed systems analyses. A review of these additional analysis techniques is provided, focusing on the data necessary to enable these. The discussion is concluded by proposing how the data may be utilized by analysts in the future.

  5. Polythermal cutting of Al-Si-YAl2 system

    International Nuclear Information System (INIS)

    Given the out come of the research of the Al-Si-YAl2 system with studies of polythermal cutting. It was found out that the most cutting of Al-YSi2Al2, Al-YSiAl2, Al-Y5SiAl14, YSiAl2-YSi2Al2, Y5SiAl14-YSiAl2 and Y5SiAl14-YAl2, Si-YSiAl2 has the nature of quasibinary eutectics

  6. Progresses in analyzing 26Al with SMCAMS

    International Nuclear Information System (INIS)

    Shanghai Mini-Cyclotron based Accelerator Mass Spectrometer (SMCAMS) was especially designed for analyzing 14C. In order to accelerate and analyze 26Al the accelerated orbit and beam optics in injection system were calculated and harmonic number and acceleration turns was optimized. Preliminary experiment was carried out. In which a beam current of 1.15 x 10-9A for 27Al- and 0.038 CPS background for 26Al were measured. The limited sensitivity of 26Al/27Al is 5.25 x 10-12. (authors)

  7. AlON粉体的合成

    Institute of Scientific and Technical Information of China (English)

    赵小军; 茹红强; 张宁; 孙有政

    2009-01-01

    以α-Al2O3和AlN为原料,利用高温固相反应在氮气气氛下常压合成了AlON粉体。研究了成分配比、合成温度、保温时间对合成AlON粉体含量的影响,并通过热分析测试了合成过程热流和质量的变化。结果表明,当原料Al2O3和AlN的质量比为81:18、合成工艺为1750℃,2h时,得到AlON相的含量达到95%以上。

  8. Trato verbal paterno al adolescente

    Directory of Open Access Journals (Sweden)

    Rodríguez Juan Carlos

    1995-06-01

    Full Text Available

    En alguna ocasión se ha escuchado una palabra, que causa un sentimiento y a la vez un recuerdo, que lleva a evocar la adolescencia o la infancia, se recuerda quien la pronunciaba y en que ocasión la decía. Este es el poder que tiene una palabra y más aún si es dicha por el padre, puesto que este es la figura significativa que se lleva en la memoria. De aquí nace el interés de realizar un estudio, en donde se describe y analice la percepción y el sentimiento del adolescente, quien en esta etapa es vulnerable al cambio, ya que está buscando su propia identidad; que con el trato verbal paterno la encontrara sin ninguna dificultad o por el contrario nunca la encontrará.

     

  9. Orientation of Al3Ti platelets in Al-Al3Ti functionally graded material manufactured by centrifugal method

    International Nuclear Information System (INIS)

    Al-Al3Ti functionally graded materials (FGMs) were manufactured by the centrifugal method with a commercial ingot of Al-5 mass% Ti master alloy. The alloy was melted at a liquid/solid coexisting temperature, at which Al3Ti remains as a solid, and then it was cast into a thick-walled ring. It was found that the Al-Al3Ti functionally graded material can be successfully fabricated by the centrifugal method. It was also found that the volume fraction of the Al3Ti can be increased by repetition of the centrifugal method. Since the shape of Al3Ti particles in a commercial alloy ingot is that of a platelet, the Al3Ti particles are arranged with their platelet planes nearly perpendicular to the radial direction. The orientation effects become stronger when the G number becomes larger. Although the final centrifugal casting was conducted under a very large centrifugal force for the specimen cast three times, the orientation effects were weaker than those in the specimen cast one time. From these observations, it is concluded that the origin of orientation of Al3Ti platelets can be attributed to the angular velocity gradient of the melt along the radial direction produced by the difference in the viscosity. (orig.)

  10. TEM characterization of Al-C-Cu-Al2O3 composites produced by mechanical milling

    International Nuclear Information System (INIS)

    Novel Al-based composites (Al-C-Cu-Al2O3) obtained by mechanical milling (MM), were characterized by transmission electron microscopy (TEM) and electron energy loss spectroscopy (EELS). Analyses of composites were carried out in both, the as-milled and the as-sintered conditions. C nanoparticles were found in the as-milled condition and Al2O3 nanofibers were found in as-sintered products, as determined by EELS. C and Cu react with Al to crystallize in Al3C4 and Al2Cu structures, respectively

  11. MARTENSITIC TRANSFORMATION AND THERMAL STABILITY IN Cu-Al-Co AND Cu-Al-Zr ALLOYS

    Institute of Scientific and Technical Information of China (English)

    Y. Q. Ma; C.B. Jiang; H.B. Xu

    2003-01-01

    Cu-Al-Co and Cu-Al-Zr alloys were explored with Co or Zr additions in Cu-Al alloys for high temperature shape memory alloys. Samples were quenched after homogenized at 850℃ for 48h. It was found that both Cu-Al-Co and Cu-Al-Zr show AlCu3 martensitic phase at room temperature and exhibit martensitic transformation temperatures higher than 200℃, showing the potentials for developing as high temperature shape memory alloys. Thermal cycles were performed by DSC instrument on both Cu-Al-Co and Cu-Al-Zr alloys. The results show that Cu-Al-Co loses its martensitic transformation after five thermal cycles, and Cu-Al-Zr exhibits no martensitic transformation in the second thermal cycle.

  12. Influences of Al particles on the microstructure and property of electrodeposited Ni-Al composite coatings

    Science.gov (United States)

    Cai, Fei; Jiang, Chuanhai

    2014-02-01

    Ni-Al composite coatings with different contents of Al microparticles were prepared from a conventional Watt bath. The influences of Al particle loadings in the bath on the surface morphology, composition, texture, grain size, microstrain, residual stress and anti-corrosion of the Ni-Al composite coating were investigated. The friction coefficients of the coatings at 200 °C were also evaluated by a pin-on-disctribometer. The results showed that the surface morphology of the coatings changed from pyramid + colonied structure to colonied structure with increasing Al particle loadings. The (2 0 0) preferred orientation for pure Ni coating evolved to random orientation with increasing Al particle loadings. The grain size obtained the minimum value of 72.28 nm at Al particle loading of 100 g/L and the microstrain of the coating increased with increasing the Al particle loadings. The incorporation of Al particles decreased the residual stress of the electro-deposited coating and all the coatings deposited at different Al particle loadings possessed low residual stress. As the Al particle loading increased, the anti-corrosion of the Ni-Al coatings increased owing to the combined effect of increasing Al content in the coatings and the texture evolution from (2 0 0) plane to (1 1 1) plane. The wear result suggested that the increasing Al particle content did not improve the wear performance of the Ni-Al composite coatings.

  13. Efficiency droop in high-Al-content AlGaN/AlGaN quantum wells

    Energy Technology Data Exchange (ETDEWEB)

    Tamulaitis, G.; Mickevicius, J.; Kazlauskas, K.; Zukauskas, A. [Institute of Applied Research and Department of Semiconductor Physics, Vilnius University, Sauletekio 9-III, 10222 Vilnius (Lithuania); Shur, M.S. [Department of ECE and CIE, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, NY 12180 (United States); Yang, J.; Gaska, R. [Sensor Electronic Technology Inc., 1195 Atlas Road, Columbia, SC 29209 (United States)

    2011-07-15

    Excitation power density dependence of photoluminescence (PL) efficiency is studied in the temperature range from 8 to 300 K for AlGaN multiple quantum well structures containing quantum wells of different width. PL efficiency droop is observed and dependence of the droop effect on the well width and lattice temperature is discussed. Photoluminescence band shape reveals strong carrier heating. It is shown that the heating effect has a substantial influence on the photoluminescence efficiency droop, especially at low lattice temperatures. Fitting of the temperature dependence of the PL band width with that obtained by the Monte Carlo simulation of carrier (exciton) hopping via localized states shows that (i) the potential fluctuations can be fairly accurately described using a double-scaled potential profile model, (ii) the localization becomes stronger in narrower quantum wells. (copyright 2011 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

  14. Al-Si/Al2O3 in situ composite prepared by displacement reaction of CuO/Al system

    Directory of Open Access Journals (Sweden)

    Zhang Jing

    2010-02-01

    Full Text Available Al2O3 particle-reinforced ZL109 composite was prepared by in situ reaction between CuO and Al. The microstructure was observed by means of OM, SEM and TEM. The Al2O3 particles in sub-micron sizes distribute uniformly in the matrix, and the Cu displaced from the in situ reaction forms net-like alloy phases with other alloy elements. The hardness and the tensile strength of the composites at room temperature have a slight increase as compared to that of the matrix. However, the tensile strength at 350 ℃ has reached 90.23 MPa, or 16.92 MPa higher than that of the matrix. The mechanism of the reaction in the CuO/Al system was studied by using of differential scanning calorimetry(DSC and thermodynamic calculation. The reaction between CuO and Al involves two steps. First, CuO reacts with Al to form Cu2O and Al2O3 at the melting temperature of the matrix alloy, and second, Cu2O reacts with Al to form Cu and Al2O3 at a higher temperature. At ZL109 casting temperature of 750–780 ℃, the second step can also take place because of the effect of exothermic reaction of the first step.

  15. Fabrication of TiAl3 coating on TiAl-based alloy by Al electrodeposition from dimethylsulfone bath and subsequent annealing

    OpenAIRE

    Miyake, Masao; Tajikara, Seiya; Hirato, Tetsuji

    2011-01-01

    TiAl3 coating was formed on TiAl alloy by Al electrodeposition from a dimethylsulfone (DMSO2) bath and subsequent annealing. Before the Al electrodeposition, anodic dissolution of TiAl substrate in the DMSO2 bath was conducted to remove the surface oxide layer of the TiAl substrate. By performing the Al electrodeposition immediately after the anodic dissolution, uniform Al films adherent to the TiAl substrate could be obtained. Annealing at 650–1000 °C yielded a single TiAl3 layer or two laye...

  16. Apego al tratamiento farmacológico en pacientes con diagnóstico de diabetes mellitus tipo 2 Pharmacological therapy compliance in diabetes

    Directory of Open Access Journals (Sweden)

    Blanca Rosa Durán-Varela

    2001-06-01

    Full Text Available Objetivos. Establecer la frecuencia de apego al tratamiento farmacológico en pacientes diabéticos tipo 2, relacionarla con el control metabólico e identificar factores que influyen para el no apego. Material y métodos. Estudio transversal comparativo, efectuado en 150 pacientes con diabetes mellitus tipo 2 de la unidad de medicina familiar No. 33 del Instituto Mexicano del Seguro Social de Chihuahua, Chih., México, hecho entre 1997 y 1998. Se midió el apego con cuenta de tabletas en su domicilio. El control metabólico se midió con hemoglobina glucosilada. Un cuestionario investigó factores relacionados. Se utilizó estadística descriptiva, t de Student y razón de momios. Resultados. El apego correspondió a 54.2%. Los factores asociados al no apego fueron la escolaridad primaria y la falta de información sobre la enfermedad (phttp://www.insp.mx/salud/index.htmlObjective. To establish the frequency of compliance to pharmacological therapy, and to identify non-compliance factors, in relation to metabolic control on patients with type-II diabetes mellitus. Material and methods. A comparative cross-sectional study was conducted between 1997 and 1998, among 150 type-II diabetic patients, at the Family Medicine Unit No. 33, of the Mexican Institute of Social Security, in Chihuahua, Mexico. Compliance to drug therapy was measured by counting tablets at home. Metabolic control was measured through glycosilated hemoglobin. A questionnaire was given to collect data on factors related to compliance. Statistical analysis consisted of descriptive statistics, Student's t and odds ratios. Results. Pharmacological therapy compliance was 54.2%. Factors associated with non-compliance were elementary schooling and lack of information about the disease. Conclusions. Pharmacological therapy compliance was low. Factors related to non-compliance can be modified through education. The English version of this paper is available at: http://www.insp.mx/salud/index.html

  17. Orientation relationship of eutectoid FeAl and FeAl2

    Science.gov (United States)

    Scherf, A.; Kauffmann, A.; Kauffmann-Weiss, S.; Scherer, T.; Li, X.; Stein, F.; Heilmaier, M.

    2016-01-01

    Fe–Al alloys in the aluminium range of 55–65 at.% exhibit a lamellar microstructure of B2-ordered FeAl and triclinic FeAl2, which is caused by a eutectoid decomposition of the high-temperature Fe5Al8 phase, the so-called ∊ phase. The orientation relationship of FeAl and FeAl2 has previously been studied by Bastin et al. [J. Cryst. Growth (1978 ▸), 43, 745] and Hirata et al. [Philos. Mag. Lett. (2008 ▸), 88, 491]. Since both results are based on different crystallographic data regarding FeAl2, the data are re-evaluated with respect to a recent re-determination of the FeAl2 phase provided by Chumak et al. [Acta Cryst. (2010 ▸), C66, i87]. It is found that both orientation relationships match subsequent to a rotation operation of 180° about a 〈112〉 crystallographic axis of FeAl or by applying the inversion symmetry of the FeAl2 crystal structure as suggested by the Chumak data set. Experimental evidence for the validity of the previously determined orientation relationships was found in as-cast fully lamellar material (random texture) as well as directionally solidified material (∼〈110〉FeAl || solidification direction) by means of orientation imaging microscopy and global texture measurements. In addition, a preferential interface between FeAl and FeAl2 was identified by means of trace analyses using cross sectioning with a focused ion beam. On the basis of these habit planes the orientation relationship between the two phases can be described by (01)FeAl || (114) and [111]FeAl || [10]. There is no evidence for twinning within FeAl lamellae or alternating orientations of FeAl lamellae. Based on the determined orientation and interface data, an atomistic model of the structure relationship of Fe5Al8, FeAl and FeAl2 in the vicinity of the eutectoid decomposition is derived. This model is analysed with respect to the strain which has to be accommodated at the interface of FeAl and FeAl2. PMID:27047304

  18. Electron channelling enhanced microanalysis on Ni-Al-Mn and Al-Mn-Si

    International Nuclear Information System (INIS)

    Atom location by channelling enhanced microanalysis (ALCHEMI) was performed for Ni-Al-Mn compounds and Al-Mn-Si quasicrystals. For Ni75Al25-xMnx (x=5,9) with the L12-type structure, an occupation fraction of Mn atoms at the Ni site was quantitatively determined using planar channelling conditions. The occupation fraction increases with the Mn concentration or by quenching the compound from high temperature. In quasicrystals of Al74Mn20Si6 and Al68Mn20Ru8Si4, axial channelling conditions were used to locate Si and Ru, respectively. It was shown that Si atoms occupy the Al site in Al74Mn20Si6 whereas Ru atoms occupy the site different from that of Al in Al68Mn20Ru8Si4. (author)

  19. Microstructure and mechanical properties of Ti2AlC-reinforced TiAl composites

    International Nuclear Information System (INIS)

    Ti2AlC/TiAl composites were successfully in-situ synthesized by reaction hot pressing using Ti, Al, TiC and CNTs as starting materials. The results indicate that the as-sintered composites mainly consist of Ti2AlC and TiAl phases. The mechanical properties of the 23 wt.% Ti2AlC/TiAl composite exhibit the highest values, with a flexural strength and fracture toughness of 652.5 ± 76.8 MPa and 6.6 ± 0.5 MPa m1/2, respectively. The complex structure coupled with dispersed Ti2AlC micro-particulates is responsible for the enhancement in the strength. Toughening of the composite is mainly attributed to crack deflection, crack bridging, crack branching and pull-out of the Ti2AlC particles, as well as transgranular cracking.

  20. High pressure studies of UFe5Al7 and UFe7Al5 actinide compounds

    International Nuclear Information System (INIS)

    The ternary inter-metallic compounds, UFe5Al7 and UFe7Al5, crystallize in a tetragonal ThMn12 type structure. In the as-cast samples a residual phase of FeAl (∼2%wt) was identified in the grain boundaries. The amount of the residual cubic phase of FeAl was determined by Rietveld analysis and reduced by the annealing process. UFe5Al7 and UFe7Al5 maintain the tetragonal symmetry as a function of pressure, while FeAl keeps the cubic structure as was determined by the Rietveld analysis. The volume-pressure curve calculated from the X-ray analysis gives V/V0=0.87 for UFe5Al7 at 26.0 GPa and 0.89 at 24.6 GPa for UFe7Al5. (author)

  1. Chemical mixing at "Al on Fe" and "Fe on Al" interfaces

    Science.gov (United States)

    Süle, P.; Kaptás, D.; Bujdosó, L.; Horváth, Z. E.; Nakanishi, A.; Balogh, J.

    2015-10-01

    The chemical mixing at the "Al on Fe" and "Fe on Al" interfaces was studied by molecular dynamics simulations of the layer growth and by 57Fe Mössbauer spectroscopy. The concentration distribution along the layer growth direction was calculated for different crystallographic orientations, and atomically sharp "Al on Fe" interfaces were found when Al grows over (001) and (110) oriented Fe layers. The Al/Fe(111) interface is also narrow as compared to the intermixing found at the "Fe on Al" interfaces for any orientation. Conversion electron Mössbauer measurements of trilayers—Al/57Fe/Al and Al/57Fe/Ag grown simultaneously over Si(111) substrate by vacuum evaporation—support the results of the molecular dynamics calculations.

  2. Fabrication of /sup 26/Al targets

    Energy Technology Data Exchange (ETDEWEB)

    Buchmann, L.; Baumeister, H.; Rolfs, C.

    1984-06-01

    Targets with up to 1.4x10/sup 16/ /sup 26/Al atoms have been fabricated. The artificial production of the /sup 26/Al nuclei via the reaction /sup 26/Mg(p, n)/sup 26/Al was carried out at the cyclotrons in Juelich and Muenchen. The experimental procedures in the fabrication of these targets as well as some test measurements are described.

  3. The wobbler mouse, an ALS animal model

    OpenAIRE

    Moser, Jakob Maximilian; Bigini, Paolo; Schmitt-John, Thomas

    2013-01-01

    This review article is focused on the research progress made utilizing the wobbler mouse as animal model for human motor neuron diseases, especially the amyotrophic lateral sclerosis (ALS). The wobbler mouse develops progressive degeneration of upper and lower motor neurons and shows striking similarities to ALS. The cellular effects of the wobbler mutation, cellular transport defects, neurofilament aggregation, neuronal hyperexcitability and neuroinflammation closely resemble human ALS. Now,...

  4. A New Phase in ALS Research.

    Science.gov (United States)

    Chong, P Andrew; Forman-Kay, Julie D

    2016-09-01

    In this issue of Structure, Conicella et al. (2016) present evidence that the low complexity C-terminal region of TDP-43 undergoes liquid-liquid phase separation. ALS-associated mutations alter this phase separation process, providing a possible mechanism for the pathology caused by these TDP-43 mutations. The work is strongly supportive of toxic loss of RNA processing function in ALS. PMID:27602988

  5. Growth of CdTe: Al films

    International Nuclear Information System (INIS)

    CdTe: AI films were grown by the close space vapor transport technique combined with free evaporation (CSVT-FE). The Aluminum (Al) evaporation was made by two kinds of sources: one made of graphite and the other of tantalum. The films were deposited on glass substrates. The Al source temperature was varied maintaining the CdTe source temperature fixed as well as the substrate temperature. The films were characterized by x-ray energy dispersive analysis (EDAX), x-ray diffraction and optical transmission. The results showed for the films grown with the graphite source for Al evaporation, the Al did not incorporate in the CdTe matrix, at least to the level of EDAX sensitivity; they maintained the same crystal structure and band gap. For the samples grown with the tantalum source, we were able to incorporate the Al. The x-ray diffraction patterns show that the films have a crystal structure that depends on Al concentration. They were cubic up to 2.16 at. % Al concentration; for 19.65 at. % we found a mixed phase; for Al concentration higher than 21 at. % the films were amorphous. For samples with cubic structure it was found that the lattice parameter decreases and the band gap increases with Al concentration. (Author)

  6. Genetics of Familial and Sporadic ALS

    Science.gov (United States)

    2016-03-21

    Amyotrophic Lateral Sclerosis (ALS); Familial Amyotrophic Lateral Sclerosis; Amyotrophic Lateral Sclerosis With Frontotemporal Dementia; Lou Gehrig's Disease; Motor Neuron Disease; Primary Lateral Sclerosis

  7. 关于w-al-CL空间%On w-al-CL Spaces

    Institute of Scientific and Technical Information of China (English)

    林丽琼; 张云南

    2011-01-01

    给出w-al-CL空间的定义,比较几种CL性的关系,讨论w-al-CL空间的c0和与l1和的稳定性,并讨论C(K,X)空间的w-al-CL性.%Gives the definition of w-al-CL spaces, compare the relationship of some properties of CL, discusses the stability of c0 -sums and l1 -sums of w-al-CL spaces, and discusses the property of w-al-CL of C(K,X) spaces.

  8. Interfacial strength of Al/Al and Al/Zr/Du-10wt%Mo subject to different loading modes

    International Nuclear Information System (INIS)

    Compact tension (CT) experiments were conducted with fixtures that allowed mode-I (tensile opening mode), mode-Il (shearing mode), and mixed-mode loading to measure the interfacial strength between HIP-clad Al and Al, and Al and Zr/DU-10wt%Mo. Specimens were made with the same HIP process used for making thin composite foils, but instead used 25 mm thick Al-6061 cladding that allowed specimens to be gripped without adhesives. Three configurations of specimens were tested: (1) Al/Al specimens with a pre-crack along the seam; (2) specimens containing both a Zr/DU-10wt%Mo layer and an Al/Al seam along part of the interface; and (3) specimens containing only a Zr/DU-10wt%Mo layer at the interface, but with a pre notch along part of the interface. Digital image correlation (DIC) was used to measure full-field deformations during the test. The results show that mode-I loaded interfaces exhibit the weakest strength and the widest scatter. The strength increases when more shearing component is introduced

  9. Untersuchung der Nitridierung V/Al-intermetallischer Phasen

    OpenAIRE

    Lewalter, Hartmut Berthold

    2004-01-01

    Schichten V/Al-Intermetallischer Phasen und Schichten aus V(Al) (Schichtdicken 150- 300 nm) wurden durch Interdiffusion von V/Al- und V5Al8/V-Mehrfachschichten bei 400-800°C im Vakuum bei 3 x 10-8 mbar hergestellt. Des Weiteren wurden V5Al8-Schichten durch Sputtern einer V5Al8-Legierung erzeugt. Die Gesamtstöchiometrie der Schichten lag zwischen Al0,86V0,14 und Al0,19V0,81. Als Substrat dienten einkristalline (012) Saphirwafer. Die V/Al-Intermetallischen Phasen und V(Al) wurden im RTP-System ...

  10. Response to Signorovitch et al.

    Science.gov (United States)

    Flot, Jean-François; Debortoli, Nicolas; Hallet, Bernard; Van Doninck, Karine

    2016-08-22

    Signorovitch et al.[1] comment that an Oenothera-like meiosis [2] could produce a pattern similar to what we observed in our study of natural isolates of the bdelloid rotifer Adineta vaga, which we attributed to horizontal gene transfers (HGTs) [3]. Indeed, our HGT hypothesis appears at first sight difficult to conciliate with their observation of a congruent pattern of allele sharing at four large loci possibly located on different chromosomes [4]. However, one might imagine conditions under which massive horizontal gene transfer between bdelloid individuals could produce such a pattern, notably if the individuals involved had previously lost most of their heterozygosity because of their exposure to frequent desiccation (which produces DNA double-strand breaks [5]). In the published A. vaga genome the loss of heterozygosity due to large-scale gene conversion events or break-induced replication covers only about 10% of the genome [6], but this percentage may be much higher in environmental isolates that often experience dessication. Besides, if an Oenothera-like mode of meiosis occurs in bdelloids frequently enough to be detected in a single sampling of 29 individuals (as in [4]), one would expect males and meiosis to be observed at least occasionally, and instances of congruent allele sharing across loci should turn up frequently in genetic surveys. This was not the case in [3]: among the 82 A. vaga individuals sequenced for four nuclear markers, no trio of individuals presented congruent patterns of shared sequences at different loci. For these reasons, and in the absence of any direct evidence for an Oenothera-like meiosis in bdelloids, we still consider inter-bdelloid HGTs a more parsimonious explanation for our results. PMID:27554651

  11. Atomic structure and oxygen deficiency of the ultrathin aluminium oxide barrier in Al/AlOx/Al Josephson junctions.

    Science.gov (United States)

    Zeng, Lunjie; Tran, Dung Trung; Tai, Cheuk-Wai; Svensson, Gunnar; Olsson, Eva

    2016-01-01

    Al/AlOx/Al Josephson junctions are the building blocks of a wide range of superconducting quantum devices that are key elements for quantum computers, extremely sensitive magnetometers and radiation detectors. The properties of the junctions and the superconducting quantum devices are determined by the atomic structure of the tunnel barrier. The nanoscale dimension and disordered nature of the barrier oxide have been challenges for the direct experimental investigation of the atomic structure of the tunnel barrier. Here we show that the miniaturized dimension of the barrier and the interfacial interaction between crystalline Al and amorphous AlOx give rise to oxygen deficiency at the metal/oxide interfaces. In the interior of the barrier, the oxide resembles the atomic structure of bulk aluminium oxide. Atomic defects such as oxygen vacancies at the interfaces can be the origin of the two-level systems and contribute to decoherence and noise in superconducting quantum circuits. PMID:27403611

  12. Band edge modulation and interband optical transition in AlN:MgAl-ON nanotubes

    International Nuclear Information System (INIS)

    AlN nanotubes (NTs) have many novel characteristics and great potential applications in electronic and optoelectronic nanodevices. However, little is known about the influence of MgAl-ON co-doping effects on their optical properties. Here, we focus on investigating the electronic structures, clarify the interband optical transition mechanism and give a clear atomic picture for the important electron/hole localization centre in AlN:MgAl-ON NTs using the GGA-1/2 method. We find that the MgAl doping efficiency can be improved effectively due to ON doping in AlN NTs. The MgAl and ON form MgAl-ON defect complex easily along the AlN NT axis (C-axis). The MgAl-ON defect complex can result in a remarkable charge transfer around it and modify the valence band maximum and conduction band minimum significantly. Meanwhile, the MgAl-ON defect complex also forms the important exciton localization centre and effectively enhances the interband radiative recombination rate. Moreover, the light emission/absorption sensitively depends on its polarization. The parallel polarized light (E∥C) is much stronger than the perpendicular one (E⊥C). The MgAl-ON co-doping thus paves a new way for improving the performance of electronic and optoelectronic nanodevices based on AlN NTs. (papers)

  13. Estrategias de Enseñanza a Distancia sobre Control No-Lineal Aplicada al Péndulo Invertido Strategies for Distance Learning Courses on Nonlinear Control Applied to the Inverted Pendulum

    Directory of Open Access Journals (Sweden)

    Sergio García-Nieto

    2007-01-01

    Full Text Available Este artículo describe el desarrollo de una herramienta software/hardware destinada al estudio, en el ámbito de la enseñanza universitaria, de sistemas de control distribuidos en tiempo real. El sistema se empleará en el control de procesos no lineales. Esta herramienta presenta tres partes claramente diferenciadas, las cuales pueden ser analizadas y modificadas por los estudiantes: i se introduce el modelo físico del péndulo invertido; ii el controlador es implementado en un sistema distribuido de tiempo real; y iii todo el sistema es manejado mediante una aplicación desarrollada en JAVA. Por lo tanto, los estudiantes tienen todos los elementos necesarios para trabajar con sistemas complejos no lineales, como el problema del péndulo invertido que se discute en este trabajo. Las pruebas realizadas muestran que la plataforma proporciona un método rápido y seguro de experimentación para los estudiantes.This paper presents a software/hardware tool to study, at university level, distributed control systems in real time. This platform is applied to control nonlinear processes. The system has three different parts which students can evaluate and modify; i a virtual model represents the physic model of the inverted pendulum; the controller is implemented by a real time distributed control system; and iii the whole system is managed with a JAVA application. Therefore, students have all the necessary elements to practice with complex nonlinear systems, such as the inverted pendulum discussed in this work. The tests done show that the plattform represents a fast and reliable method for experimentation by the students.

  14. The theory of the moon in the al-Zij al-Kamil fi-l-taalim of Ibn al-Ha'im

    OpenAIRE

    Puig i Tàrrech, Roser

    2000-01-01

    Al the beginning of Ihe thirteenth cenrury (60tH I 1204-1205) Abli Muhammad Abd al-Haqq al-Ghafiqi al-lshbiIi known as Ibn al-Ha'im composed his work entitled al-Zi] al-Kamil fi-l-Taalim in honour of the Caliph Abu Abd Allah Muhammad al-Nasir (who reigned from 1199- 1213). All we know of lbn al-Ha'im's live is that he came from Seville and that he appears to have worked in North Africa.

  15. Effect of Al coating conditions on laser weldability of Al coated steel sheet

    Institute of Scientific and Technical Information of China (English)

    Jung-Han LEE; Jong-Do KIM; Jin-Seok OH; Seo-Jeong PARK

    2009-01-01

    Al coated steel sheets with excellent heat resistance, thermal reflection, and corrosion resistance are widely used in various applications. The laser weldability of the Al coated steel sheet for full penetration welding was reported. The phenomenon caused by intermixed aluminum and behavior of aluminum in the weld were investigated. Al coated steel sheets that have various thickness and coating mass were prepared for laser welding. The effects of parameters such as welding conditions and Al coating conditions were investigated. Al content mixed in the weld after laser welding was evaluated, and then a correlation between the mixed Al and mechanical properties was investigated. The results show that the Al-rich zones which have Fe-Al intermetallic compounds are found in the weld. The intermetallic compounds cause the decreased strength of the weld.

  16. Studies on SiC(p) reinforced Al-Al sub 3 Ni eutectic matrix composites

    International Nuclear Information System (INIS)

    An investigation on processing of Al-5.69wt% Ni eutectic with SiC particulate composites is reported. The intermetallic composites are prepared by elemental powder metallurgy route and sintered at two different temperatures, i.e., 600 degree C and 620 degree C. Results show that the metal matrix was Al-Al sub 3 Ni eutectic. The phase analysis by XRD identified the presence of Al sub 3 Ni and Al as dominant phases together with silicon and Al sub 4 C sub 3 phase as minor phases. The Al sub 4 C sub 3 and Si phases are formed during sintering due to SiC-Al interface reaction. SEM micrographs also reveal the formation of microvoid surrounding the SiC particle

  17. Diana Al-Hadid: Identity and Heritage

    Science.gov (United States)

    Jungerberg, Tom; Smith, Anna; Borsh, Colleen

    2012-01-01

    Diana Al-Hadid's sculptures reflect the many locations, cultures, histories, and mythologies that have shaped her as an artist. In large-scale works which have the appearance of architectural ruins, Al-Hadid employs imagery drawn from many diverse interests including science and technology, history, and literature. She also incorporates images and…

  18. Kus on al-Zarqawi? / Aadu Hiietamm

    Index Scriptorium Estoniae

    Hiietamm, Aadu, 1954-

    2005-01-01

    Suurbritannia nädalalehe Sunday Times andmetel on Iraagi tagaotsituim mässaja, terrorivõrgustiku al Qaeda liitlane Abu-Musab al-Zarqawi pärast USA raketirünnakus haavatasaamist riigist põgenenud

  19. Als je vrienden hebt dan win je

    NARCIS (Netherlands)

    Effing, R. (Robin); Huibers, T. (Theo); Krosse, de L. (Luc)

    2010-01-01

    Als je wint, heb je vrienden’ is een Nederlandse klassieker van Herman Brood en Henny Vrienten. Hiermee werd de gevoelige snaar bloot gelegd dat pas als je hebt gewonnen je vrienden hebt. Rijen dik, echte vrienden. In de politiek werkt het andersom; je moet vrienden (stemmen) hebben, ve

  20. MOSQUE ARCHITECTURE AS A SUSTAINABLE BUILDING IN URBAN (Case Study: Al Markas Al Islamic Mosque Makassar)

    OpenAIRE

    Imriyanti Imriyanti

    2014-01-01

    Abstract Mosque Architecture is a part of Islamic architecture. Mosque should be fused with elements of nature because its function as a place to pray to God who created the universe. Al Markas Al Islamic Makassar mosque is used as a center of Islamic aspirations of the people and the government to accommodate all the activities of moslems in Makassar. Through this function, the provision of Al Markas Al Islamic mosque began from the desire of Islamic societies in Makassar, which want...

  1. High temperature creep behaviour of Al-rich Ti-Al alloys

    Energy Technology Data Exchange (ETDEWEB)

    Sturm, D; Heilmaier, M; Saage, H [Otto von Guericke University Magdeburg, Institute for Materials and Joining Technology, PO Box 4120, D-39016 Magdeburg (Germany); Aguilar, J; Schmitz, G J; Drevermann, A [ACCESS e.V., Intzestrasse 5, D-52072 Aachen (Germany); Palm, M; Stein, F; Engberding, N [Max-Planck-Institut fuer Eisenforschung GmbH, Max-Planck-Str. 1, D-40237 Duesseldorf (Germany); Kelm, K; Irsen, S, E-mail: daniel.sturm@ovgu.d [Stiftung caesar, Electron Microscopy, Ludwig-Erhard-Allee 2, D-53175 Bonn (Germany)

    2010-07-01

    Compared to Ti-rich {gamma}-TiAl-based alloys Al-rich Ti-Al alloys offer an additional reduction of in density and a better oxidation resistance which are both due to the increased Al content. Polycrystalline material was manufactured by centrifugal casting. Microstructural characterization was carried out employing light-optical, scanning and transmission electron microscopy and XRD analyses. The high temperature creep of two binary alloys, namely Al{sub 60}Ti{sub 40} and Al{sub 62}Ti{sub 38} was comparatively assessed with compression tests at constant true stress in a temperature range between 1173 and 1323 K in air. The alloys were tested in the cast condition (containing various amounts of the metastable phases Al{sub 5}Ti{sub 3} and h-Al{sub 2}Ti) and after annealing at 1223 K for 200 h which produced (thermodynamically stable) lamellar {gamma}-TiAl + r-Al{sub 2}Ti microstructures. In general, already the as-cast alloys exhibit a reasonable creep resistance at 1173 K. Compared with Al{sub 60}Ti{sub 40}, both, the as-cast and the annealed Al{sub 62}Ti{sub 38} alloy exhibit better creep resistance up to 1323 K which can be rationalized by the reduced lamella spacing. The assessment of creep tests conducted at identical stress levels and varying temperatures yielded apparent activation energies for creep of Q = 430 kJ/mol for the annealed Al{sub 60}Ti{sub 40} alloy and of Q = 383 kJ/mol for the annealed Al{sub 62}Ti{sub 38} material. The latter coincides well with that of Al diffusion in {gamma}-TiAl, whereas the former can be rationalized by the instability of the microstructure containing metastable phases.

  2. Corrosion Studies of 2195 Al-Li Alloy and 2219 Al Alloy with Differing Surface Treatments

    Science.gov (United States)

    Danford, M. D.; Mendrek, M. J.

    1998-01-01

    Corrosion studies of 2195 Al-Li and 2219 Al alloys have been conducted using the scanning reference electrode technique (SRET) and the polarization resistance (PR) technique. The SRET was used to study corrosion mechanisms, while corrosion rate measurements were studied with the PR technique. Plates of Al203 blasted, soda blasted and conversion coated 2219 Al were coated with Deft primer and the corrosion rates studied with the EIS technique. Results from all of these studies are presented.

  3. Assessment of the al corner of the ternary Al-Fe-Si system

    OpenAIRE

    Eleno, Luiz; Vezelý, Josef; Sundman, Bo; Cieslar, Miroslav; Lacaze, Jacques

    2010-01-01

    The present work provides a review of the information available on the Al-rich corner of the Al-Fe-Si system as well as a CALPHAD type assessment making use of the COST 507 database as a starting point. The description of the intermetallic compounds has been modified to account for substitution of Al and Si in the ternary Al-Fe-Si system and to take new experimental information into account.

  4. The annealing behaviour of hydrogen implanted into Al metal and Al-Si alloy

    International Nuclear Information System (INIS)

    In the present experiment, we have investigated how defects and elements as additive play a role as trap site by observing the annealing behaviour of hydrogen implanted into Al and Al-Si alloy. It was found that hydrogen is trapped as molecules in grain boundaries of Si in Al. (author)

  5. Shadow evaporation of epitaxial Al/Al2O3/Al tunnel junctions on sapphire utilizing an inorganic bilayer mask

    OpenAIRE

    Welander, Paul B.; Bolkhovsky, Vladimir; Weir, Terence J.; Gouker, Mark A.; Oliver, William D.

    2012-01-01

    This letter describes a new inorganic shadow mask that has been employed for the evaporation of all-epitaxial Al/Al2O3/Al superconducting tunnel junctions. Organic resists that are commonly used for shadow masks and other lift-off processes are not compatible with ultra-high vacuum deposition systems, and they can break down at even moderately elevated temperatures. The inorganic mask described herein does not suffer these same shortcomings. It was fabricated from a Ge/Nb bilayer, comprising ...

  6. Japanese version of the ALS-FTD-Questionnaire (ALS-FTD-Q-J).

    Science.gov (United States)

    Watanabe, Yasuhiro; Beeldman, Emma; Raaphorst, Joost; Izumi, Yuishin; Yoshino, Hiide; Masuda, Michihito; Atsuta, Naoki; Ito, Satoru; Adachi, Tadashi; Adachi, Yoshiki; Yokota, Osamu; Oda, Masaya; Hanashima, Ritsuko; Ogino, Mieko; Ichikawa, Hiroo; Hasegawa, Kazuko; Kimura, Hideki; Shimizu, Toshio; Aiba, Ikuko; Yabe, Hayato; Kanba, Makoto; Kusumi, Kimiyoshi; Aoki, Tetsuya; Hiroe, Yu; Watanabe, Hirohisa; Nishiyama, Kazutoshi; Nomoto, Masahiro; Sobue, Gen; Nakashima, Kenji

    2016-08-15

    Amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) share common clinical, genetic and neuropathological features. Some ALS patients have behavioral/personality changes, which could result in significant obstacles in the care provided by family members and caregivers. An easy screening tool would contribute greatly to the evaluation of these symptoms. We translated the ALS-FTD-Questionnaire, developed in the Netherlands, into Japanese (ALS-FTD-Q-J) and examined the clinimetric properties (internal consistency, construct and clinical validity). Patients with ALS and/or behavioral variant FTD (bvFTD) were evaluated alongside healthy controls in this multicenter study. All ALS patients, regardless of bvFTD status, were further evaluated by the frontal behavioral inventory (FBI) and for frontal/executive function, cognition, anxiety/depression, and motor functions. Data from 146 subjects were analyzed: ALS (92), ALS-bvFTD (6), bvFTD (16), and healthy controls (32). The internal consistency of the ALS-FTD-Q-J was good (Cronbach α=0.92). The ALS-FTD-Q-J showed construct validity as it exhibited a high correlation with the FBI (r=0.79). However, correlations were moderate with anxiety/depression and low with cognitive scales, in contrast to the original report, i.e. a moderate correlation with cognition and a low correlation with anxiety/depression. The ALS-FTD-Q-J discriminated ALS patients from (ALS-)bvFTD patients and controls. Thus, the ALS-FTD-Q-J is useful for evaluating Japanese ALS/FTD patients. PMID:27423564

  7. DISTINGSI DAN DIASPORA TASAWUF ABÛ AL-HASAN AL-SHÂDHILÎ

    OpenAIRE

    Saifulah Saifulah

    2015-01-01

    This article discusses Shâdhilîyah, one of the most recognized sufi orders, which possesses quite distinct aspects in the conception of its mystical teachings. This sufi order was founded by Abû al-H}asan al-Shâdhilî, a sufi who has moderate and open view of the worldly life. Al-Shâdhilî explained about how a sufi should behave towards and deal with worldly matters. Although al-Shâdhilî asserted that a person who practice tasawwuf should not pay more adoration on the worldly matters (hubb al-...

  8. The influence of Al content on the Zener relaxation of Fe-Al alloys

    International Nuclear Information System (INIS)

    The effect of Al content on the Zener relaxation peak of annealed Fe-Al alloys has been investigated using a computer-controlled automatic inverted torsion pendulum through the method of free decay and forced vibration. It has been shown that alloys with medium Al contents show strong relaxation while lower or higher Al contents lead to relatively weak Zener relaxation peaks. The Zener relaxation in Fe-Al alloys originates from the next-nearest-neighbour atom pairs and their interaction rather than the nearest-neighbour atom pairs. The latter may not produce Zener relaxation because of the ordered structure, which suppresses Zener relaxation

  9. Magnetism in bcc Fe-Al alloy

    Energy Technology Data Exchange (ETDEWEB)

    Elzain, M.E. [Sultan Qaboos Univ., Al-Khod (Oman). Dept. of Phys.; Yousif, A.A. [Sultan Qaboos Univ., Al-Khod (Oman). Dept. of Phys.

    1994-11-01

    The magnetic moment {mu}, hyperfine field B{sub hf} and isomer shift IS at the Fe site in bcc Fe-Al alloys were calculated from first principle. Contrary to the belief that Al atoms reside in the iron lattice as magnetic holes, it was found that the local magnetic moment of Fe is decreased when Al is at a nearest neighbour site (NN), while it increases if Al is at a next-nearest neighbour site (NNN). Consequently, the average {mu} per Fe atom was found to be, initially, independent of Al content. Assuming a linear dependence of {mu}{sub Fe} on the number of Al atoms at NN and NNN sites, we calculated the average {mu}, which was found to agree with experimental results of cold worked alloys for disordered Fe-Al alloy. On the other hand, antiferromagnetic coupling appears in the CsCl ordered structures. The average B{sub hf} was also calculated and compared to experimental data and the trends in the IS are considered. (orig.)

  10. Comparative study on interface and bulk charges in AlGaN/GaN metal-insulator-semiconductor heterostructures with Al2O3, AlN, and Al2O3/AlN laminated dielectrics

    Science.gov (United States)

    Zhu, Jie-Jie; Ma, Xiao-Hua; Chen, Wei-Wei; Hou, Bin; Xie, Yong; Hao, Yue

    2016-05-01

    In this paper, the interface and bulk charges in AlGaN/GaN metal-insulator-semiconductor (MIS) heterostructures with AlN, Al2O3, and Al2O3/AlN laminated dielectrics were studied. In situ plasma pretreatment resulted negligible interface trap states and voltage hysteresis. The fixed charge density at Al2O3/AlN (or Al2O3/barrier) interface was estimated to be 1.66 × 1013 cm-2 by using flat-band voltage shift, and the oxide bulk charge concentration was 2.86 × 1017 cm-3. The interface charge density at other interfaces were at the order of 1011 cm-2. Simulation results using the above charge density/concentration indicated that Al2O3/AlN interface fixed charges dominated the dielectric-related voltage shift in AlGaN/GaN MIS heterostructures, which caused a large voltage shift of -3 V with 10 nm Al2O3 thickness, while the flat-band voltage variety resulting from other types of charges was within 0.1 V.

  11. Tracing Al Shabaab’s Decision to Cooperate with Al Qaeda in Somalia (2008

    Directory of Open Access Journals (Sweden)

    Adlini Ilma Ghaisany Sjah

    2014-02-01

    Full Text Available 'Al Shabaab, a Somali insurgent with predominantly nationalistic causes (alongside transnational [global Jihad] and Islamic goals made the choice to fight on behalf of Al Qaeda in 2008. The decision to do so contrasted with Al Shabaab’s previous behaviour of actively denying cooperation and distancing itself from Al Qaeda. This study aims to uncover factors that contributed to Al Shabaab’s decision through the use of process-tracing. The results show that Al Shabaab’s declaration of cooperation with Al Qaeda in August 2008 was brought about by a series of events that traced back to four factors: public reactions to the implementation of a Salafi ideology, the shift to a radical leadership, Al Shabaab’s inability to maintain stability in areas under its control and its increasing attacks by Al Shabaab on the Somali public. Al Shabaab pursued cooperation with Al Qaeda after realizing that their nationalistic preference was no longer achievable in the near future.' ' '

  12. Optical characterization of Al- and N-polar AlN waveguides for integrated optics

    Science.gov (United States)

    Rigler, Martin; Buh, Jože; Hoffmann, Marc P.; Kirste, Ronny; Bobea, Milena; Mita, Seiji; Gerhold, Michael D.; Collazo, Ramon; Sitar, Zlatko; Zgonik, Marko

    2015-04-01

    Dispersion of the extraordinary and ordinary refractive indices of Al- and N-polar AlN waveguides is measured by multiple angle-of-incidence and spectroscopic ellipsometry techniques. The polarity-controlled AlN layers are grown by metal-organic chemical vapor deposition on (0001)-sapphire substrates. Taking into consideration the different surface morphologies of the Al- and N-polar AlN waveguides, we propose two optical models to describe the measured ellipsometry data. The results indicate that there is no difference between the refractive indices of the AlN grown in opposite directions, which confirms the potential of the AlN lateral polar structures for use in nonlinear optical applications based on quasi phase matching.

  13. Oxidation of Al2O3 continuous fiber-reinforced/NiAl composites

    Science.gov (United States)

    Doychak, J.; Nesbitt, J. A.; Noebe, R. D.; Bowman, R. R.

    1992-01-01

    The 1200 C and 1300 C isothermal and cyclic oxidation behavior of Al2O3 continuous fiber-reinforced/NiAl composites were studied. Oxidation resulted in formation of Al2O3 external scales in a similar manner as scales formed on monolithic NiAl. The isothermal oxidation of an Al2O3/NiAl composite resulted in oxidation of the matrix along the fiber/matrix interface near the fiber ends. This oxide acted as a wedge between the fiber and the matrix, and, under cyclic oxidation conditions, led to further oxidation along the fiber lengths and eventual cracking of the composite. The oxidation behavior of composites in which the Al2O3 fibers were sputter coated with nickel prior to processing was much more severe. This was attributed to open channels around the fibers which formed during processing, most likely as a result of the diffusion of the nickel coating into the matrix.

  14. A Rechargeable Al/S Battery with an Ionic-Liquid Electrolyte.

    Science.gov (United States)

    Gao, Tao; Li, Xiaogang; Wang, Xiwen; Hu, Junkai; Han, Fudong; Fan, Xiulin; Suo, Liumin; Pearse, Alex J; Lee, Sang Bok; Rubloff, Gary W; Gaskell, Karen J; Noked, Malachi; Wang, Chunsheng

    2016-08-16

    Aluminum metal is a promising anode material for next generation rechargeable batteries owing to its abundance, potentially dendrite-free deposition, and high capacity. The rechargeable aluminum/sulfur (Al/S) battery is of great interest owing to its high energy density (1340 Wh kg(-1) ) and low cost. However, Al/S chemistry suffers poor reversibility owing to the difficulty of oxidizing AlSx . Herein, we demonstrate the first reversible Al/S battery in ionic-liquid electrolyte with an activated carbon cloth/sulfur composite cathode. Electrochemical, spectroscopic, and microscopic results suggest that sulfur undergoes a solid-state conversion reaction in the electrolyte. Kinetics analysis identifies that the slow solid-state sulfur conversion reaction causes large voltage hysteresis and limits the energy efficiency of the system. PMID:27417442

  15. Magnetic properties and crystal structure of HoNiAl and UNiAl hydrides

    International Nuclear Information System (INIS)

    The effect of hydrogenation on the magnetic properties and crystal structure of 4f and 5f intermetallics was studied on HoNiAlH2.0, UNiAlH2.3 and UNiAlD2.1. The incorporation of hydrogen into HoNiAl leads to a decrease of the magnetic ordering temperature from 13 to 6 K, while it increases from 19 K to values in the range 90-100 K in the UNiAl-H system. The crystal lattices of all compounds are anisotropically expanded. Moreover, the crystal symmetry is lowered to orthorhombic in HoNiAlH2.0, but remains hexagonal for UNiAlH(D)x. Three different deuterium positions were found for both compounds. (c) 2000 American Institute of Physics

  16. AlON粉体的合成%Synthesis of AlON Powder

    Institute of Scientific and Technical Information of China (English)

    赵小军; 茹红强; 张宁; 孙有政

    2009-01-01

    以α-Al_2O_3和AlN为原料,利用高温固相反应在氮气气氛下常压合成了AlON粉体.研究了成分配比、合成温度、保温时间对合成AlON粉体含量的影响,并通过热分析测试了合成过程热流和质量的变化.结果表明,当原料Al_2O_3和AlN的质量比为81:18、合成工艺为1750 ℃, 2 h时,得到AlON相的含量达到95%以上.

  17. Adherencia al tratamiento en la esquizofrenia

    OpenAIRE

    Ruiz Manrique, Olatz

    2015-01-01

    [Es]La adherencia al tratamiento es un problema real en los pacientes esquizofrénicos, que dificulta su inserción en la sociedad y puede ocasionarles graves repercusiones médicas. Por ello, el objetivo de esta revisión es valorar la eficacia de las intervenciones psicoeducacionales con la ayuda del personal sanitario y/o familiares, en la adherencia al tratamiento de los pacientes esquizofrénicos. Se realizó una revisión sistemática para dar respuesta al objetivo planteado, analizando las res...

  18. Amyotrofinen lateraaliskleroosi (ALS) ja potilaan ohjaus

    OpenAIRE

    Korkeaniemi, Lotta; Kaakinen, Leena

    2009-01-01

    Saimme opinnäytetyömme toimeksiantona Hyvinkään sairaalan sisätautien vuodeosastolta. Tavoitteena oli luoda ALS potilaille potilasopas trakeostomiasta ja sen kanssa elämisestä. Oppaan tarkoituksena on auttaa ALS potilaita päättämään, kuinka pitkälle he haluavat viedä heidän hengitystukihoitonsa. Samalla hoitajat saavat tuki materiaalia, jonka avulla he voivat käydä läpi hengitystukihoitoja ja erityisesti trakeostomiaan liittyviä asioita. ALS eli amyotrofinen lateraaliskleroosi on tahdona...

  19. Suspected variables among Al Sufi stars.

    Science.gov (United States)

    Hoffleit, D.

    In the tenth century Al Sufi compiled a catalogue of some 1100 stars. J.E. Gore, around 1900, wrote extensively on the magnitudes of these stars. On intercomparing them with a few other catalogues, Gore surmised that some 38 stars appeared to show secular variations. Here all the Al Sufi magnitudes have been compared with numerous additional sources, but smooth secular variations are not substantiated although some stars seem to have undergone comparatively sudden changes after about 1600. About 70 Al Sufi stars are now named or suscpected variable stars, but nearly all with amplitudes under 0.3 V.

  20. TAFSIR SEMANTIK TERHADAP SURAT AL-KAFIRUN

    Directory of Open Access Journals (Sweden)

    Imam Muslimin

    2011-10-01

    Full Text Available The problems about the reading of al-Qur’an is always interesting to be discussed, in which the use of Arabic includes sound or ‘nash’ is acrucial factor to understand the implicit meaning of the Arabic-written texts. Al-Qur’an discusses problem based on the society’s culture. Al-Kafirun discusses not only about the normative theology but more about sociological contexts in which it tends to show transparency, fight against fanaticism and regionalism. And all of the will bring to the first process of the making of the text meaning to the situational context that creates them.

  1. Linija za transport Al-polizdelkov

    OpenAIRE

    Capl, Žiga

    2012-01-01

    V diplomski nalogi je predstavljena linija za transport Al-polizdelkov, ki je sestavljena iz dveh verižnih transporterjev in dveh manipulatorjev. Omenjeni transporterji morajo transportirati Al-polizdelke od sprejemnega mesta do poti v stiskalnico. V okviru diplomskega dela smo opravili analizo obstoječega ogrodja z naklonom, linije za transport Al-polizdelkov in podali možne rešitve za novo učinkovitejšo izvedbo. Na podlagi tehnično-tehnoloških zahtev smo izbrali najprimernejšo rešitev i...

  2. Characterization of AlInN/AlN/GaN Heterostructures with Different AlN Buffer Thickness

    Science.gov (United States)

    Çörekçi, S.; Dugan, S.; Öztürk, M. K.; Çetin, S. Ş.; Çakmak, M.; Özçelik, S.; Özbay, E.

    2016-07-01

    Two AlInN/AlN/GaN heterostructures with 280-nm- and 400-nm-thick AlN buffer grown on sapphire substrates by metal-organic chemical vapor deposition (MOCVD) have been investigated by x-ray diffraction (XRD), atomic force microscopy (AFM), photoluminescence (PL) and Hall-effect measurements. The symmetric (0002) plane with respect to the asymmetric (10bar{1}2) plane in the 280-nm-thick AlN buffer has a higher crystal quality, as opposed to the 400-nm-thick buffer. The thinner buffer improves the crystallinity of both (0002) and (10bar{1}2) planes in the GaN layers, it also provides a sizeable reduction in dislocation density of GaN. Furthermore, the lower buffer thickness leads to a good quality surface with an rms roughness of 0.30 nm and a dark spot density of 4.0 × 108 cm-2. The optical and transport properties of the AlInN/AlN/GaN structure with the relatively thin buffer are compatible with the enhancement in its structural quality, as verified by XRD and AFM results.

  3. Evolution of ConAl clusters and chemisorption of hydrogen on ConAl clusters

    International Nuclear Information System (INIS)

    The growth behavior of ConAl (n = 1–15) and the chemisorptions of hydrogen on the ground state geometries have been studied using the density functional theory (DFT) within the generalized gradient approximation (GGA). The growth pattern for ConAl is Al-substituted Con+1 clusters, and it keeps the similar frameworks of the most stable Con+1 clusters except for n = 2, 3, and 6. The Al atom substitutes the surface atom of the Con+1 clusters for n ≤ 13. Starting from n = 14, the Al atom completely falls into the center of the Co-frame. The dissociation energy, the second-order energy differences, and the HOMO–LUMO gaps indicate that the magic numbers of the calculated ConAl clusters are 7, 9, and 13, corresponding to the high symmetrical structures. To my knowledge, this is the first time that a systematic study of chemisorption of hydrogen on cobalt aluminum clusters. The twofold bridge site is identified to be the most favorable chemisorptions site for one hydrogen adsorption on ConAl (n = 1–6, 8, 10), and two hydrogen adsorption on ConAl (n = 1–7), while threefold hollow site is preferred for one hydrogen adsorption on ConAl (n = 7, 9, 11–15) and two hydrogen adsorption on ConAl (n = 8–10, 12–15) clusters. The ground state structure of two hydrogen adsorption on Co11Al is exceptional. In general, the binding energy of both H and 2H of ConAl (n = 1–12) is found to increase with the cluster size. And the result shows that large binding energies of the hydrogen atoms and large fragmentation energies for Co11AlH and Co12AlH make these species behaving like magic clusters.

  4. Wali Allah menurut al-Hakim al-Tirmidzi dan Ibnu Taimiyyah

    Directory of Open Access Journals (Sweden)

    Lilik Mursito

    2015-12-01

    Full Text Available The discussion about wali presented in the early time on the hand of al-Hakim al Tirmidzi, which reaps number of responses from Muslim scholar because of his misleading. One of them is Ibn Taimiyyah. Al-Hakim and Ibn Taymiyyah have their own view about wali with several distinctions. In the definition of wali, al-Hakim al-Tirmidzi used more general language than Ibn Taimiyyah, as well as characteristics, how to be wali, the classification, concept of karamah, and the concept of khatm al-awliya’. According to writer, al-Hakim al-Tirmidzi’s view about wali able to deepen our understanding about Sufism, meanwhile Ibn Taimiyyah’s view will led us to comprehend Sufism from modernist point of view. This paper conclude that: both of figures seen that wali of Allah are the servants submissive and obedient in running His command; according to al-Hakim al Tirmidzi, degree of wali can be reached purely from Allah’s bounty and the effort of servants themselves, while Ibn Taimiyyah seen that the degree could be reached in the way of faith and piety of the servant; al-Hakim al-Tirmidzi seen that karamah is the most urgent for wali, while Ibn Taimiyyah did not; al-Hakim al-Tirmidzi utilized the quality of deeds to measure the best people and purity of heart to measure the best wali, while Ibn Taymiyyah utilized the quality of deeds as the assessment standard to measure best people and wali.

  5. In Situ Fabrication of AlN Coating by Reactive Plasma Spraying of Al/AlN Powder

    Directory of Open Access Journals (Sweden)

    Mohammed Shahien

    2011-10-01

    Full Text Available Reactive plasma spraying is a promising technology for the in situ formation of aluminum nitride (AlN coatings. Recently, it became possible to fabricate cubic-AlN-(c-AlN based coatings through reactive plasma spraying of Al powder in an ambient atmosphere. However, it was difficult to fabricate a coating with high AlN content and suitable thickness due to the coalescence of the Al particles. In this study, the influence of using AlN additive (h-AlN to increase the AlN content of the coating and improve the reaction process was investigated. The simple mixing of Al and AlN powders was not suitable for fabricating AlN coatings through reactive plasma spraying. However, it was possible to prepare a homogenously mixed, agglomerated and dispersed Al/AlN mixture (which enabled in-flight interaction between the powder and the surrounding plasma by wet-mixing in a planetary mill. Increasing the AlN content in the mixture prevented coalescence and increased the nitride content gradually. Using 30 to 40 wt% AlN was sufficient to fabricate a thick (more than 200 µm AlN coating with high hardness (approximately 1000 Hv. The AlN additive prevented the coalescence of Al metal and enhanced post-deposition nitriding through N2 plasma irradiation by allowing the nitriding species in the plasma to impinge on a larger Al surface area. Using AlN as a feedstock additive was found to be a suitable method for fabricating AlN coatings by reactive plasma spraying. Moreover, the fabricated coatings consist of hexagonal (h-AlN, c-AlN (rock-salt and zinc-blend phases and certain oxides: aluminum oxynitride (Al5O6N, cubic sphalerite Al23O27N5 (ALON and Al2O3. The zinc-blend c-AlN and ALON phases were attributed to the transformation of the h-AlN feedstock during the reactive plasma spraying. Thus, the zinc-blend c-Al

  6. PEMBARUAN MASLA╩AH DALAM MAQĀ╤ID AL- SHARĪ‘AH: TELAAH HUMANISTIS TENTANG AL-KULLIYYĀT AL-KHAMSAH

    Directory of Open Access Journals (Sweden)

    Zaenuddin Mansyur

    2015-03-01

    Full Text Available Abstract:   In order to answer a variety of issues faced by human being in the current era, such as human rights abuses, social disintegration, and terrorism, the renewal of Islamic law in the level of theoretical and practical aspects is very urgent. This paper aims to examine one of the Islamic legal reform efforts, namely to build a more technical understanding of the concept of ma╣la╪ah contained in the maqā╣īd sharī‘ah, called the al-kulliyat al-khamsah. Therefore, the concept of ma╣la╪ah in ╪if╬ al-dīn is technically defined as al-╪urriyah al-i‘tiqād (freedom of religion and schools; in ╪if╬ al-nafs as al-karamat al-insān (human being breeding; in ╪if╬ al-nasl as ╪if╬ al-usrah (wholeness and harmony of the family; in ╪if╬ al-māl as al-ta╨ammun al-insān (social solidarity , and in ╪if╬ al-‘aql as al-╪uqūq as al-tarbiyāt (increasing human resources quality.Abstrak: Demi menjawab aneka persoalan zaman yang dihadapi manusia era sekarang, seperti penyelewengan terhadap HAM, disintegrasi sosial, dan terorisme, maka pembaharuan hukum Islam dalam tataran teoretis dan praktis urgen dilakukan. Tulisan ini bertujuan untuk mengkaji salah satu upaya pembaruan hukum Islam, yaitu membangun pemahaman yang lebih teknis terhadap konsep ma╣la╪ah yang terkandung dalam maqā╣īd sharī‘ah, yang disebut dengan al-kulliyāt al-khamsah. Oleh karena itu, konsep ma╣la╪ah dalam ╪if╬u al-dīn secara teknis dimaknai sebagai ╪urriyah al-i‘tiqād (kebebasan untuk beragama dan beraliran; dalam ╪if╬u al-nafs sebagai al-karāmāt al-insān (pemuliaan kemanusiaan; dalam ╪if╬u al-nasl sebagai ╪if╬u al-usrah (keutuhan dan keharmonisan keluarga; dalam ╪if╬u al-māl sebagai al-ta╨ammun al-insān (solidaritas sosial; dan dalam ╪if╬u al-‘aql sebagai al-╪uqūq al-tarbiyāt (peningkatan sumber daya manusia.

  7. Pesticides Linked to Raised Risk of ALS

    Science.gov (United States)

    ... page: https://medlineplus.gov/news/fullstory_158737.html Pesticides Linked to Raised Risk of ALS One toxin ... MONDAY, May 9, 2016 (HealthDay News) -- Exposure to pesticides and other chemicals may increase the risk for ...

  8. Pesticides Linked to Raised Risk of ALS

    Science.gov (United States)

    ... nlm.nih.gov/medlineplus/news/fullstory_158737.html Pesticides Linked to Raised Risk of ALS One toxin ... MONDAY, May 9, 2016 (HealthDay News) -- Exposure to pesticides and other chemicals may increase the risk for ...

  9. Stem Cells Deemed Safe for ALS Patients

    Science.gov (United States)

    ... page: https://medlineplus.gov/news/fullstory_159627.html Stem Cells Deemed Safe for ALS Patients But further research needed to see if injections into spine would provide any benefit, researchers say To use the sharing features on ...

  10. ALS: Recent Developments from Genetics Studies.

    Science.gov (United States)

    Therrien, Martine; Dion, Patrick A; Rouleau, Guy A

    2016-06-01

    Amyotrophic lateral sclerosis (ALS) is a fatal disorder that is characterized by a progressive degeneration of the upper and lower motor neurons. Most cases appear to be sporadic, but 5-10 % of cases have a family history of the disease. High-throughput DNA sequencing and related genomic capture tools are methodological advances which have rapidly contributed to an acceleration in the discovery of genetic risk factors for both familial and sporadic ALS. It is interesting to note that as the number of ALS genes grows, many of the proteins they encode are in shared intracellular processes. This review will summarize some of the recent advances and gene discovery made in ALS. PMID:27113253

  11. Het Nederlandse bos als vorm van bodemgebruik

    NARCIS (Netherlands)

    Slangen, L.H.G.; Boven, van B.

    1983-01-01

    Behandeling van de oppervlakte en verdeling van het bos en de veranderingen die hierin zijn opgetreden, met de bedrijfsgrootte-struktuur als belangrijke invalshoek daarbij; de rol van de overheid: doeleinden, instrumenten en effekten van het beleid

  12. In situ (Al3Zr + Al2O3np)/2024Al metal matrix composite with novel reinforcement distributions fabricated by reaction hot pressing

    International Nuclear Information System (INIS)

    Highlights: •(Al3Zr + Al2O3np)/2024Al MMC with a novel network distribution was tailored. •Al3Zr and Al2O3np were in situ synthesized at 740 °C using the 2024Al–ZrO2 system. •The effect of sintering parameters on Al3Zr morphology was investigated. •Influence of Al3Zr morphology on tensile properties of the composite was studied. -- Abstract: In situ hybrid (Al3Zr + Al2O3np)/2024Al metal matrix composites with unique controlled reinforcement distributions were fabricated using low energy ball milling and reactive hot pressing. The reaction system between 2024Al and ZrO2 was studied using differential thermal analysis (DTA). In situ formed aluminium oxide (Al2O3) and zirconium tri-aluminide (Al3Zr) with varying morphology and sizes were produced under different fabricating conditions. Al3Zr with varying morphologies such as particle, plate and flakes were observed. With a total 10 vol.% of reinforcements, the composite containing a three-dimensional network of closely spaced in situ synthesized Al3Zr and Al2O3 particles had a YS of 175 MPa and a UTS of 261 MPa, effectively strengthening the 2024Al matrix. The effect of different sintering conditions on the microstructure and tensile properties of the composite was systematically investigated

  13. Hans Freudenthal als docent en collega

    OpenAIRE

    Verhulst, Ferdinand; Verhoef, Nellie

    2010-01-01

    Hans Freudenthal heeft een belangrijke invloed gehad op de ontwikkeling van het basiswiskundeonderwijs. Niet minder belangrijk was zijn activiteit als docent en onderzoeker gedurende tientallen jaren op het Mathematisch Instituut van de Universiteit Utrecht. Hoe waren toen zijn ideeën over onderwijs, hoe was hij als collega en hoe waren zijn colleges? Nellie Verhoef en Ferdinand Verhulst interviewden voormalige collega’s en studenten van Freudenthal.

  14. Effects of Al substitution on goethite formation

    OpenAIRE

    Premoli, Alessandra Maria; Melis, Pietro; Gessa, Carlo Emanuele; Deiana, Salvatore Andrea

    1984-01-01

    Goethites containing up to 32.7 mole % Al were synthesized and characterized through diffractometry, spectrometry, DSC and chemical techniques. Results indicate that crystal growth was favoured or hindered depending on the percentage of aluminum incorporated into the structure. Goethites to which 5-10 mole % Al were initially added crystallized best, as shown by the highest crystallite dimensions calculated from X-ray and Mössbauer analyses, and by the lowest surface areas values. Over suc...

  15. Anerkennung als Voraussetzung gesellschaftlicher und unternehmerischer Teilhabe

    OpenAIRE

    Eurich, Johannes; Brink, Alexander

    2003-01-01

    Angesichts des neuen Phänomens der sozialen Exklusion wird soziale Gerechtigkeit nicht mehr nur über die Verteilung von Gütern hergestellt, vielmehr spielt auch die Ebene der Partizipation eine Rolle. Anerkennung ist eine Grundvoraussetzung für Partizipation. Die Verfasser diskutieren Fragen der Unternehmensethik auf der Dimension der Anerkennung. Sie votieren für ein normatives Stakeholder-Management als freiwillige Verpflichtung, das auch strategischen Anforderungen gerecht werden kann. Als...

  16. Information als Gegenstand von Informationskompetenz. Eine Begriffsanalyse

    OpenAIRE

    Ingold, Marianne

    2011-01-01

    Der Informationsbegriff als zentraler Gegenstand von Informationskompetenz wird in der bibliothekarischen Diskussion in der Regel nicht explizit thematisiert, sondern lässt sich aus Fachliteratur und Bibliothekspraxis nur implizit erschließen. Eine theoretische Beschäftigung mit dem Informationsbegriff ist jedoch unabdingbar, soll das Konzept "Informationskompetenz" auch außerhalb des bibliothekarischen Kontextes verständlich und nutzbar gemacht werden. Im vorliegenden Text, der sich als B...

  17. Plasma nitriding of Al 99.5

    OpenAIRE

    Chen, H. -Y; Stock, H.-R.; Mayr, P.

    1993-01-01

    Aluminium nitride (AlN) is a very interesting ceramic because of its combination of properties such as high thermal stability, high hardness and an unusual combination of high thermal and low electrical conductivity. But it is very difficulty to obtain an AlN layer on the aluminium substrates by thermochemical nitriding process. Since a thin film of aluminium oxide existing on the surface of every aluminium substrate prevents the nitrogen atoms from diffusing into the aluminium lattice. Howev...

  18. Communication Support for People with ALS

    OpenAIRE

    David Beukelman; Susan Fager; Amy Nordness

    2011-01-01

    Almost all people with amyotrophic lateral sclerosis (ALS) experience a motor speech disorder, such as dysarthria, as the disease progresses. At some point, 80 to 9 5 % of people with ALS are unable to meet their daily communication needs using natural speech. Unfortunately, once intelligibility begins to decrease, speech performance often deteriorates so rapidly that there is little time to implement an appropriate augmentative and alternative communication (AAC) intervention; therefore, app...

  19. Performance of the ALS injection system

    International Nuclear Information System (INIS)

    The authors started commissioning the Advanced Light Source (ALS) storage ring on January 11, 1993. The stored beam reached 60 mA on March 24, 1993 and 407 mA on April 9, 1993. The fast pace of storage ring commissioning can be attributed partially to the robust injection system. In this paper they describe the operating characteristics of the ALS injection system

  20. Del latín al rumano

    Directory of Open Access Journals (Sweden)

    Montes Giraldo José Joaquín

    2003-06-01

    Full Text Available

    Marius Sala, Del latín al rumano. Versión española de Valeria Neagu, París, Unión Latina - Bucarest, Univers enciclopedic, 2002. El texto se dirige al lector corriente, no especialista, y por eso el aparato técnico-bibliográfico no se presenta en el curso de la exposición.

  1. Next-generation sequencing of 28 ALS-related genes in a Japanese ALS cohort.

    Science.gov (United States)

    Nakamura, Ryoichi; Sone, Jun; Atsuta, Naoki; Tohnai, Genki; Watanabe, Hazuki; Yokoi, Daichi; Nakatochi, Masahiro; Watanabe, Hirohisa; Ito, Mizuki; Senda, Jo; Katsuno, Masahisa; Tanaka, Fumiaki; Li, Yuanzhe; Izumi, Yuishin; Morita, Mitsuya; Taniguchi, Akira; Kano, Osamu; Oda, Masaya; Kuwabara, Satoshi; Abe, Koji; Aiba, Ikuko; Okamoto, Koichi; Mizoguchi, Kouichi; Hasegawa, Kazuko; Aoki, Masashi; Hattori, Nobutaka; Tsuji, Shoji; Nakashima, Kenji; Kaji, Ryuji; Sobue, Gen

    2016-03-01

    We investigated the frequency and contribution of variants of the 28 known amyotrophic lateral sclerosis (ALS)-related genes in Japanese ALS patients. We designed a multiplex, polymerase chain reaction-based primer panel to amplify the coding regions of the 28 ALS-related genes and sequenced DNA samples from 257 Japanese ALS patients using an Ion Torrent PGM sequencer. We also performed exome sequencing and identified variants of the 28 genes in an additional 251 ALS patients using an Illumina HiSeq 2000 platform. We identified the known ALS pathogenic variants and predicted the functional properties of novel nonsynonymous variants in silico. These variants were confirmed by Sanger sequencing. Known pathogenic variants were identified in 19 (48.7%) of the 39 familial ALS patients and 14 (3.0%) of the 469 sporadic ALS patients. Thirty-two sporadic ALS patients (6.8%) harbored 1 or 2 novel nonsynonymous variants of ALS-related genes that might be deleterious. This study reports the first extensive genetic screening of Japanese ALS patients. These findings are useful for developing genetic screening and counseling strategies for such patients. PMID:26742954

  2. Heterogeneous nucleation of solid Al from the melt by Al 3 Ti : Molecular dynamics simulations

    KAUST Repository

    Wang, Junsheng

    2010-10-27

    It has been known experimentally for some time that Al3 Ti is a powerful nucleant for the solidification of aluminum from the melt; however, a full microscopic understanding is still lacking. To develop this understanding, we have performed molecular dynamics simulations of the nucleation and early stages of growth using published embedded atom method potentials for Al-Ti, but modified by us to stabilize the D 022 structure. We discover that Al3 Ti can indeed be very effective in promoting the growth of solid Al but the manner in which growth takes place depends sensitively on the surface on which the Al nucleates. In particular, complete growth of solid Al from the liquid on the (001) and (110) surfaces of Al3 Ti occurs at a lower temperature than on the (112) surface. This anisotropy agrees with observations in previous experiments. We explain this observation in terms of interfacial energies. On the preferential (111) surface of Al the solid-liquid interfacial energy is highest while the solid-vacuum energy is lowest. Our simulations also show that the extent of ordering taking place in liquid Al close to the Al 3 Ti substrate above the melting point correlates well with the effectiveness of the substrate as a nucleant below the melting temperature: this could provide a computationally efficient scheme to identify good nucleants. © 2010 The American Physical Society.

  3. Al4C3 Hydration Thermochemical Analysis for Burned Carbon-containing Refractories with Al

    Institute of Scientific and Technical Information of China (English)

    YANG Ding'ao; YU Zhiming; FAN Liuwu

    2003-01-01

    In this paper, X-ray diffractogram analysis and SEM observation of Al4 C3 formed at high temperature from carbon-containing refractories with Al have been carried out.Aluminum added to carbon-containing refractories reacts with C(s)to form Al4 C3(s) gradually during heating from 600 ℃ to 1200℃.It is considered that the interlocked structure of Al4 C3 plate crystals promotes the outstanding increase of hot modulus of rupture of carbon-containing refractories with Al. The HMOR of carbon-containing refractories added with Al additive from 0 to 5wt% increases by 2.8 times being from 6.5MPa to 18.2MPa.After a thermochemical calculation for hydration reaction processes of Al4 C3 and H2O(g), the equilibrium partial pressure chart of H2O(g)in H2O-Al4C3-Al(OH)3 system vs various temperatures has been attained . The H2O (g) partial pressure in the air needed for the Al4 C3 hydration reaction is no more than 10~18 atm at the temperature below 120℃.It is considered that the burned carbon-containing refractories with Al is extremely easy to hydrate and the cracking of burned carbon-containing refractories is generated because that the hydration expansion is 2.11 times during transforming from Al4 C3 to Al(OH)3.The fundamental measure against hydration of the refractories is to insulate the refractories from H2O(g)by various means such as pitch impregnation or other sealing materials.

  4. DISTINGSI DAN DIASPORA TASAWUF ABÛ AL-HASAN AL-SHÂDHILÎ

    Directory of Open Access Journals (Sweden)

    Saifulah Saifulah

    2015-09-01

    Full Text Available This article discusses Shâdhilîyah, one of the most recognized sufi orders, which possesses quite distinct aspects in the conception of its mystical teachings. This sufi order was founded by Abû al-H}asan al-Shâdhilî, a sufi who has moderate and open view of the worldly life. Al-Shâdhilî explained about how a sufi should behave towards and deal with worldly matters. Although al-Shâdhilî asserted that a person who practice tasawwuf should not pay more adoration on the worldly matters (hubb al-dunyâ, the person does not have to abhor and leave such lively aspects as wealth and position behind. The most important thing to a sufi, according to al-Shadhili, is how he obeys the requirements of shar‘ by avoiding away from immoral deeds and at the same time recognizing God in his heart (ma‘rifat Allâh. Al-Shâdhilî initiated tasawuf ‘amalî which is affiliated to the Ahl al-Sunnah wa al-Jamâ‘ah school, an Islamic mystical thought that adheres to the principles of sharî‘ah based on the foundation of al-Qur’ân dan H}adîth. The concept of al-Shâdhilî’s tasawuf has been subsequently revealed into the great sufi order spectrum, namely al-Shâdhilîyah, where during its historical development this sufi order has led to the emergence of many branches with different names.Keywords: Shâdhilîyah, open view, hubb al-dunyâ, ma‘rifat Allâh.

  5. Clinical trials for neuroprotection in ALS.

    Science.gov (United States)

    Siciliano, G; Carlesi, C; Pasquali, L; Piazza, S; Pietracupa, S; Fornai, F; Ruggieri, S; Murri, L

    2010-07-01

    Owing to uncertainty on the pathogenic mechanisms underlying motor neuron degeneration in amyotrophic lateral sclerosis (ALS) riluzole remains the only available therapy, with only marginal effects on disease survival. Here we review some of the recent advances in the search for disease-modifying drugs for ALS based on their putative neuroprotective effetcs. A number of more or less established agents have recently been investigated also in ALS for their potential role in neuroprotection and relying on antiglutamatergic, antioxidant or antiapoptotic strategies. Among them Talampanel, beta-lactam antibiotics, Coenzyme Q10, and minocycline have been investigated. Progress has also been made in exploiting growth factors for the treatment of ALS, partly due to advances in developing effective delivery systems to the central nervous system. A number of new therapies have also been identified, including a novel class of compounds, such as heat-shock protein co-inducers, which upregulate cell stress responses, and agents promoting autophagy and mitochondriogenesis, such as lithium and rapamycin. More recently, alterations of mRNA processing were described as a pathogenic mechanism in genetically defined forms of ALS, as those related to TDP-43 and FUS-TLS gene mutations. This knowledge is expected to improve our understanding of the pathogenetic mechanism in ALS and developing more effective therapies. PMID:20406180

  6. Los López de Lemos, señores de Ferreira y Sober. El linaje y sus parentelas en los siglos XIII al XVI

    Directory of Open Access Journals (Sweden)

    Pardo de Guevara y Valdés, Eduardo

    2011-12-01

    Full Text Available As has been highlighted on many occasions, the medieval nobility studies require a knowledge built on more accurate and secure their networks lineages and parents. Hence the importance of undertaking studies genealogical database and prosopographic as offered here, focusing on the López de Lemos, a famous but little known lineage that represents very well the profile of the nobility that formed the second interior Galicia. The careful genealogical research done to offer a fairly accurate picture of its formation and consolidation process, articulated from the heritage nucleated around the fortress of Ferreira. Under this effort are revealed signs of lineage identity and life trajectories of each of the characters who represented him, standing at last the milestones of their parental relationships and the different branches under their offspring led.

    Como ha sido resaltado en múltiples ocasiones, los estudios sobre la nobleza medieval precisan construirse sobre un conocimiento más exacto y seguro de los linajes y sus redes parentales. De ahí el interés de abordar estudios de base de carácter genealógico y prosopográfico como el que aquí se ofrece, centrado en los López de Lemos, un célebre pero poco conocido linaje que representa muy bien el perfil de los que conformaron la segunda nobleza del interior de Galicia. La cuidada pesquisa genealógica realizada permite ofrecer un panorama bastante preciso de su proceso de conformación y consolidación, articulado a partir del patrimonio nucleado en torno a la fortaleza de Ferreira. Al amparo de este empeño se desvelan los signos de identidad del linaje, así como las trayectorias vitales de cada uno de los personajes que lo representaron, destacándose por último los hitos fundamentales de sus relaciones parentales y de las diferentes ramas menores que sus vástagos encabezaron.

  7. Disordered crystal structure of 20H-AlON, Al10O3N8

    International Nuclear Information System (INIS)

    The disordered crystal structure of 20H-AlON (Al10O3N8) was determined by combined use of X-ray powder diffraction and transmission electron microscopy. The title compound is hexagonal with space group P63/mmc (Z=2) and the unit-cell dimensions are a=0.307082(5) nm, c=5.29447(8) nm and V=0.432376(12) nm3. The structural model showed the positional disordering of three of the six Al sites in the unit cell. The reliability indices calculated from the Rietveld method were Rwp=6.97%, S (=Rwp/Re)=1.68, Rp=5.45%, RB=5.13% and RF=4.56%. We interpreted the disordered structure of 20H-AlON as a statistical average of six different types of ordered structural configurations, which are composed of an octahedral [Al(O, N)6] layer and tetrahedral [Al(O, N)4] layers. We demonstrated the high correlations between the hexagonal unit-cell dimensions and the octahedral layer concentrations for AlON and SiAlON polytypoids. - Graphical abstract: Variations of a and c/(nO+nT) with nO/(nO+nT). The a and c are the hexagonal unit-cell dimensions of AlON, SiAlON and AlN. The nO and nT are, respectively, the numbers of octahedral and tetrahedral layers in the unit cells. The unit-cell dimensions in literature are plotted in black plus for AlON and black cross for SiAlON. The unit-cell dimensions of AlN are a=0.3110 nm and c=0.4980 nm. - Highlights: • Crystal structure of Al10O3N8 is determined by laboratory X-ray powder diffraction. • The atom arrangements are represented by the split-atom model. • Six types of ordered atom arrangements are derived from the disordered structure. • Hexagonal unit-cell dimensions changed systematically for AlON and SiAlON compounds

  8. Prinsip Pendidikan Karakter dalam Islam: Studi Komparasi Pemikiran Al-Ghazali dan Burhanuddin Al-Zarnuji

    Directory of Open Access Journals (Sweden)

    Agus Setiawan

    2014-06-01

    Full Text Available The impelemtantion of character education that is done by the Indonesian government recently has been provoked by al-Ghazali and Burhanuddin al-Zarnuji long ago. It was proven by some written thoughts of al-Ghazali and Burhanuddin al-Zarnuji. They were very famous scientists in their era and widely welknown as educational experts who produced some phenomenal thoughts many people use today. Al-Ghazali and Burhanuddin al-Zarnuji lived in the era of Bani Abbasiyah monarchy, but Both of them lived in different era. Al-Ghazali was born first, then Burhanuddin al-Zarnuji. They had different mazhab, al-Ghazali went to the traditional principle of mazhab Syafi’I and Burhanuddin al-Zarnuji went to the modern principle of mazhab Hanafi. The differences, of course, would create a different thought. Still, they might have a similar principle of Islamic character education. The thoughts of character education of al-Ghazali have been poured in the “Ayyuha Walad” focusing to the students’ character building characterized by religiously obedient, skillfull of general and religious knowledge, socially helpful, affectionate, generous, good citizen, and coloring the society. Some applicable thoughts of character education of Ayyuha al-Walad of al-Gazhali to the contemporary education are: the balance of the happiness purposes of the recent life and the life after death, qana’ah and tawakal, affectionate, caring other, patience, honesty, philanthrophy, social works, generousity, democratic, peace makers, and patriotic. Those characters are also directed in the islamic character education nowdays. So that, the thoughts of al-Ghazali positively and responsively are absorbed by the Indonesian government to build the national character widely implementing in the national curriculum based on the local wisdom and the Islamic values. In the end, the students are able to live happily based on the Islamic rules by implementing the good behavior. Similar to the al

  9. Morphology of phase separation in AlN-Al2OC and SiC-AlN ceramics

    International Nuclear Information System (INIS)

    Solid solutions in the AIN-Al2OC and SiC-AlN systems were fabricated by hot-pressing powder mixtures in graphite dies. X-ray diffraction showed the samples to be single phases of 2H structure. The samples were annealed between 1600 degrees and 1900 degrees C for up to 1000 h. In the SiC-AlN system, optical microscopy and X-ray diffraction failed to reveal microstructural or phase changes. However, electron microscopy showed that samples had decomposed. Streaking of diffraction spots occurred along directions orthogonal to [012] planes (∼43 degrees off the c axis), which is approximately the direction along which the elastic energy function is a minimum. The orientation-dependent Young's modulus was also a minimum along this direction. In AlN-Al2OC, optical microscopy and X-ray diffraction indicated the occurrence of decomposition. The precipitates were disk-shaped with [001] orthogonal to the disks. The occurrence of decomposition along the [001] direction suggests that it is the elastically soft direction

  10. Nanocrack-induced leakage current in AlInN/AlN/GaN

    International Nuclear Information System (INIS)

    Here we report on the study of nano-crack formation in Al1−xInxN/AlN/GaN heterostructures, on its association with composition fluctuation and on its local electrical properties. It is shown here that indium segregation at nano-cracks and threading dislocations originating from the non-pseudomorphic AlN interlayer could be the cause of the high reverse-bias gate leakage current of Ni/Au Schottky contacts on Al1−xInxN/AlN/GaN heterostructures and significantly affects the contact rectifying behavior. Segregation of indium around crack tips in Al1−xInxN acting as conductive paths was assessed with conductive atomic force microscopy.

  11. Scattering induced by Al segregation in AlGaN/GaN heterostructures

    Energy Technology Data Exchange (ETDEWEB)

    Liu, Xiwen; Lu, Yanwu, E-mail: ywlu@bjtu.edu.cn [Department of Physics, Beijing Jiaotong University, Beijing 100044 (China); Ji, Dong [School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, Arizona 85281 (United States)

    2015-08-17

    The effect of Al segregation near dislocations on the mobility of two-dimensional electron gas in AlGaN/GaN heterostructure-based high-electron-mobility transistors was investigated. Exponentially varied composition fluctuation was effective in describing Al segregation near dislocations when calculating scattering behavior. Mobility, which was limited by Al segregation surrounding dislocation lines, was calculated to be in the order of 10{sup 3} cm{sup 2}/Vs to 10{sup 6} cm{sup 2}/Vs. Results indicated that the mobility in AlGaN/GaN heterojunction was enhanced upon the reduction of dislocation density at low temperature. This study contributes to generating higher electron mobility in AlGaN/GaN heterojunctions.

  12. Scattering induced by Al segregation in AlGaN/GaN heterostructures

    International Nuclear Information System (INIS)

    The effect of Al segregation near dislocations on the mobility of two-dimensional electron gas in AlGaN/GaN heterostructure-based high-electron-mobility transistors was investigated. Exponentially varied composition fluctuation was effective in describing Al segregation near dislocations when calculating scattering behavior. Mobility, which was limited by Al segregation surrounding dislocation lines, was calculated to be in the order of 103 cm2/Vs to 106 cm2/Vs. Results indicated that the mobility in AlGaN/GaN heterojunction was enhanced upon the reduction of dislocation density at low temperature. This study contributes to generating higher electron mobility in AlGaN/GaN heterojunctions

  13. 60Co gamma radiation effect on AlGaN//AlN/GaN HEMT devices

    International Nuclear Information System (INIS)

    The testing techniques and experimental methods of the 60Co gamma irradiation effect on AlGaN/AlN/GaN high electron mobility transistors (HEMTs) are established. The degradation of the electrical properties of the device under the actual radiation environment are analyzed theoretically, and studies of the total dose effects of gamma radiation on AlGaN/AlN/GaN HEMTs at three different radiation bias conditions are carried out. The degradation patterns of the main parameters of the AlGaN/AlN/GaN HEMTs at different doses are then investigated, and the device parameters that were sensitive to the gamma radiation induced damage and the total dose level induced device damage are obtained. (authors)

  14. 60Co gamma radiation effect on AlGaN/AlN/GaN HEMT devices

    Institute of Scientific and Technical Information of China (English)

    WANG Yan-Ping; LUO Yin-Hong; WANG Wei; ZHANG Ke-Ying; GUO Hong-Xia; GUO Xiao-Qiang; WANG Yuan-Ming

    2013-01-01

    The testing techniques and experimental methods of the 60Co gamma irradiation effect on AlGaN/AlN/GaN high electron mobility transistors (HEMTs) are established.The degradation of the electrical properties of the device under the actual radiation environment are analyzed theoretically,and studies of the total dose effects of gamma radiation on AlGaN/AlN/GaN HEMTs at three different radiation bias conditions are carried out.The degradation patterns of the main parameters of the AlGaN/AlN/GaN HEMTs at different doses are then investigated,and the device parameters that were sensitive to the gamma radiation induced damage and the total dose level induced device damage are obtained.

  15. Al-based precipitate evolution during high temperature annealing of Al implanted in Si

    International Nuclear Information System (INIS)

    Al-based precipitate evolution for 80 keV Al ions implanted in Si has been investigated. Precipitates are formed during high temperature annealings of 1 x 1015/cm2 implanted samples. They are located at two depths where Al concentration peaks are detected. Al atoms are gettered into the extended defects present in the crystal and/or precipitate when their concentration is higher than the solid solubility value at the annealing temperature. Increasing annealing time, precipitates dissolve out and only a small fraction of atoms diffuses into the sample, meanwhile the greater part evaporates from the sample. At 1 x 1013/cm2 dose Al concentration is below the solid solubility limit. The secondary defects are not detected and the dopant profile does not display anomalous peaks. Moreover, all the implanted Al is electrically active and remains in the sample during the first instant of annealing. At higher annealing times it diffuses out of the sample reducing the residual dose

  16. Microscopic Properties of Long-Period Ordering in Al-Rich TiAl Alloys

    Science.gov (United States)

    Hata, S.; Nakano, T.; Kuwano, N.; Itakura, M.; Matsumura, S.; Umakoshi, Y.

    2008-07-01

    The ordering mechanism of long-period superstructures (LPSs) in Al-rich TiAl alloys has been investigated by high-resolution transmission electron microscopy (HRTEM). The LPSs are classified in terms of arrangements of base clusters with different shapes and compositions formed in Ti-rich (002) layers of L10-TiAl matrix: square Ti4Al, fat rhombus Ti3Al, and lean rhombus Ti2Al type clusters. The HRTEM observations revealed that antiphase boundaries of long-range-ordered LPS domains and short-range-ordered microdomains are constructed by various space-filling arrangements of the base clusters. Such a microscopic property characterized by the base clusters and their arrangements is markedly analogous to that of the {left< {{text{1,1/2,0}}} rightrangle } * special-point ordering alloys such as Ni-Mo.

  17. Observation of Electronic Shells and Characteristic Products from Mass Abundance Spectra of Al Cluster and Al-C Cluster Anions

    Institute of Scientific and Technical Information of China (English)

    LIU Bing-Chen; ZHAI Hua-Jin; ZHOU Ru-Fang; NI Guo-Quan; XU Zhi-Zhan

    2000-01-01

    Using a laser vaporization/pulsed molecular beam cluster source, Al cluster anions and Al-C mixed cluster anions are produced and recorded by a time of flight mass spectrometer. Mass abundance spectra of the Al cluster anions in the size range from Al2 to Al42 show that Al-13, Al23, Al35, and slightly, Al37 are local maxima, as predicted by the electronic jellium model. Mixed clusters Aln C- and Aln C2 are also shown, among which the most abundant species are Al3 C2 , Al6 C2 , Al7 C- and Al7 C2 in the small size range. The formation mechanism of these products is discussed.

  18. Grain refinement of hypoeutectic Al-Si alloy prepared with ELTA by Al-4B master alloy

    Institute of Scientific and Technical Information of China (English)

    WANG Ming-xing; MENG Xiang-yong; LIU Zhi-yong; LIU Zhong-xia; WENG Yong-gang; SONG Tian-fu; YANG Sheng

    2006-01-01

    Electrolytic low-titanium aluminum (ELTA) was produced by adding TiO2 powder to an industrial aluminum electrolyzer.The grain refining effect of Al-4B master alloy in the hypoeutectic Al-Si alloy prepared by using ELTA was investigated, and compared with those of Al-5Ti, Al-5Ti-1B and Al-4B master alloys in the similar alloy prepared by using pure Al. The results indicate that when Al-4B is added to the melt of the alloy prepared by using ELTA in terms of the Ti/B mass ratio of 5:1, the grain refining effect is better than those of Al-5Ti, Al-5Ti-1B and Al-4B master alloys. Thus, using Al-4B to refine the grain of Al-Si alloys prepared by using ELTA will possibly become a feasible way of obtaining Al-Si alloy with homogeneous and fine microstructure.

  19. In-Situ Synthesis of AlN Powders and Composite AlN Powders with Yttrium Addition

    Institute of Scientific and Technical Information of China (English)

    郑新和; 王群; 林志浪; 李春国; 周美玲

    2002-01-01

    Using Al-Mg and Al-Mg-Y alloys as raw materials and nitrogen as gas reactants, AlN powders and composite AlN powders by in-situ synthesis method were prepared. AlN lumps prepared by the nitriding of Al-Mg and Al-Mg-Y alloys have porous microstructure, which is favorable for pulverization. They have high purity, containing 1.23%(mass fraction) oxygen impurity, and consisted of AlN single phase. The average particle size of AlN powders is 6.78 μm. Composite AlN powders consist of AlN phases and rare earth oxide Y2O3 phase. The distribution of particle size of AlN powders shows two peaks. In view of packing factor, AlN powders with such size distribution can easily be sintered to high density.

  20. Generation and evolution of nanoscale AlP and Al{sub 13}Fe{sub 4} particles in Al-Fe-P system

    Energy Technology Data Exchange (ETDEWEB)

    Qiao, Huan; Gao, Tong; Zhu, Xiangzhen; Wu, Yuying; Qian, Zhao; Liu, Xiangfa, E-mail: xfliu@sdu.edu.cn

    2015-02-15

    Highlights: • Diffusion and gradual solid reactions between Al and Fe{sub x}P phases in Al-Fe-P alloy were investigated. • Nanoscale AlP clusters are in-situ generated and evolve during the whole process. • This novel Al-Fe-P alloy has an excellent low-temperature refining performance on hypereutectic Al-Si alloy. - Abstract: In this paper, the gradual solid reactions between Al and Fe{sub x}P phases in Al-Fe-P alloy were investigated. The results show that the whole reaction process undergoes four main stages: the diffusion of Al atom, the generation of (Al, Fe, P) intermediate compound, the precipitation of nano AlP and Al{sub 13}Fe{sub 4} clusters and their growth to submicron particles. The microstructure of Fe-P particles evolves from the “egg-type”, the “sponge-type” to the “sesame-cake” structure. AlP and Al{sub 13}Fe{sub 4} nano phases have in-situ generated and evolved during the whole process. The gradual reaction mechanism has been discussed. Furthermore, a novel Al-Fe-P alloy which contains (Al, Fe, P) intermediate compounds and nano AlP particles has been synthesized and its low-temperature refining performance on A390 alloy has also been investigated.

  1. TEM characterization of oxidized AlGaAs/AlAs nonlinear optical waveguides

    OpenAIRE

    Guillotel, E; Langlois, C.; Ghiglieno, F.; Leo, G.; Ricolleau, C.

    2010-01-01

    Abstract The internal interfaces of multilayer Al x Ga 1-x As/AlAs nonlinear optical waveguides are investigated by high-angle annular-dark-field and energy-filtered scanning transmission electron microscopy, before and after partial wet oxidation of AlAs layers. Via a simple phenomenological model, the corresponding roughness parameters allow predicting the scattering-induced waveguide optical losses, which are in reasonable agreement with the experimental value of 0.5 cm -1. We also find...

  2. Modified Mechanism of Eutectic Silicon in Al2O3/Al-Si Alloy

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    Al2O3/Al-Si alloy composite was manufactured by squeeze casting. The morphology of the eutectic silicon in the composite was observed by scanning electronic microscope (SEM), and the modified mechanism of eutectic silicon in the composite was approached. The alumina fiber in the composite can trigger twin during the growth of Al-Si eutectic and lead to the modification of eutectic silicon near the fiber.

  3. Two-Phase (TiAl+TiCrAl) Coating Alloys for Titanium Aluminides

    Science.gov (United States)

    Brady, Michael P. (Inventor); Smialek, James L. (Inventor); Brindley, William J. (Inventor)

    1998-01-01

    A coating for protecting titanium aluminide alloys, including the TiAl gamma + Ti3Al (alpha(sub 2)) class, from oxidative attack and interstitial embrittlement at temperatures up to at least 1000 C. is disclosed. This protective coating consists essentially of titanium, aluminum. and chromium in the following approximate atomic ratio: Ti(41.5-34.5)Al(49-53)Cr(9.5-12.5)

  4. Effect of the interface in laminated composites of Al-1100 and Al-2024

    International Nuclear Information System (INIS)

    Laminated composites consisting of alternating layers of Al-1100 and Al-2024 were produced by hot rolling, with 45% Al-2024 volume fraction. These composites were subjected to cyclic thermal treatment (various numbers of cycles) and to isothermal treatment (various numbers of cycles) and to isothermal treatment (at peak temperature and for times equivalent to those of the thermal cycles. Microhardness, tensile and fatigue crack arrester modes) were studied in the initial state and after treatments. (E.G.)

  5. Another Security Improvement over the Lin et al.'s E-voting Scheme

    Science.gov (United States)

    Asaar, Maryam Rajabzadeh; Mohajeri, Javad; Salmasizadeh, Mahmoud

    In 2003, Lin et al. have proposed an electronic voting scheme which can be utilized in large-scale elections, and claimed it detects double voting. But in this paper, by presenting an attack, we show that voters can successfully vote more than once without being detected. Hence, we propose a new modified scheme based on the Lin et al.'s scheme with the same efficiency to solve this weakness and analyze its security.

  6. Melt Processing and Characterization of Al-SiC Nanocomposite, Al, and Mg Foam Materials

    OpenAIRE

    Ahmed M. Nabawy; Khalil Abdelrazek Khalil; Al-Ahmari, Abdulrahman M.; Sherif, El-Sayed M.

    2016-01-01

    In the present work, metallic foams of Al, Mg and an Al-SiC nanocomposite (MMNC) have been fabricated using a new manufacturing technique by employing melt infiltration assisted with an electromagnetic force. The aim of this investigation was to study and to develop a reliable manufacturing technique consisting of different types of metallic foams. In this technique, an electromagnetic force was used to assist the infiltration of Al-SiC slurry and of pure liquid metal into a leachable pattern...

  7. Fabrication, phase transformation studies, and characterization of SiC-AlN-Al2OC ceramics

    International Nuclear Information System (INIS)

    Principal focus was on phase transformation, microstructure development, and elevated temperature creep, with some effort on room- temperature mechanical properties of selected materials. Fabrication was largely hot pressing, although many of the compositions can be densified by pressureless sintering; hot pressing was to ensure full attainment of density with fine microstructure. Most of the work was on SiC-AlN and AlN-Al2OC pseudobinaries

  8. Synthesis of core–shell AlOOH hollow nanospheres by reacting Al nanoparticles with water

    Science.gov (United States)

    Lozhkomoev, A. S.; Glazkova, E. A.; Bakina, O. V.; Lerner, M. I.; Gotman, I.; Gutmanas, E. Y.; Kazantsev, S. O.; Psakhie, S. G.

    2016-05-01

    A novel route for the synthesis of boehmite nanospheres with a hollow core and the shell composed of highly crumpled AlOOH nanosheets by oxidizing Al nanopowder in pure water under mild processing conditions is described. The stepwise events of Al transformation into boehmite are followed by monitoring the pH in the reaction medium. A mechanism of formation of hollow AlOOH nanospheres with a well-defined shape and crystallinity is proposed which includes the hydration of the Al oxide passivation layer, local corrosion of metallic Al accompanied by hydrogen evolution, the rupture of the protective layer, the dissolution of Al from the particle interior and the deposition of AlOOH nanosheets on the outer surface. In contrast to previously reported methods of boehmite nanoparticle synthesis, the proposed method is simple, and environmentally friendly and allows the generation of hydrogen gas as a by-product. Due to their high surface area and high, slit-shaped nanoporosity, the synthesized AlOOH nanostructures hold promise for the development of more effective catalysts, adsorbents, vaccines and drug carriers.

  9. Strain Rates and Grain Growth in Al 5754 and Al 6061 Friction Stir Spot Welds

    Science.gov (United States)

    Gerlich, A.; Yamamoto, M.; North, T. H.

    2007-06-01

    The stir zone temperature and microstructures are compared in friction stir spot welds produced in Al 5754 and Al 6061 alloys. Electron backscattered diffraction was used to determine the relationship between tool rotation speed during welding and final stir zone grain size. Comparison of the grain sizes in rapidly quenched welds with those in air-cooled joints confirmed that grain growth occurred only in Al 6061 spot welds. There was no evidence of abnormal grain growth in the stir zones of Al 6061 welds; the final grain size could be represented using an Arrhenius equation. The strain rates during welding were determined by incorporating the stir zone temperature and average subgrain sizes in quenched spot welds in the Zener-Hollomon relation. When the tool rotation speed increased from 750 to 3000 RPM, the strain rate values ranged from 180 to 497 s-1 in Al 5754 spot welds and from 55 to 395 s-1 in Al 6061 spot welds. It is suggested that a no-slip boundary condition may be appropriate during numerical modeling of Al 5754 and 6061 friction stir spot welding. This is not the case during Al 7075, Al 2024, and Mg-alloy AZ91 spot welding because spontaneous melting facilitates slippage at the tool contact interface.

  10. Study on Mg/Al Weld Seam Based on Zn–Mg–Al Ternary Alloy

    Directory of Open Access Journals (Sweden)

    Liming Liu

    2014-02-01

    Full Text Available Based on the idea of alloying welding seams, a series of Zn–xAl filler metals was calculated and designed for joining Mg/Al dissimilar metals by gas tungsten arc (GTA welding. An infrared thermography system was used to measure the temperature of the welding pool during the welding process to investigate the solidification process. It was found that the mechanical properties of the welded joints were improved with the increasing of the Al content in the Zn–xAl filler metals, and when Zn–30Al was used as the filler metal, the ultimate tensile strength could reach a maximum of 120 MPa. The reason for the average tensile strength of the joint increasing was that the weak zone of the joint using Zn–30Al filler metal was generated primarily by α-Al instead of MgZn2. When Zn–40Al was used as the filler metal, a new transition zone, about 20 μm-wide, appeared in the edge of the fusion zone near the Mg base metal. Due to the transition zones consisting of MgZn2- and Al-based solid solution, the mechanical property of the joints was deteriorated.

  11. Tetragonal phase in Al-rich region of U-Fe-Al system

    Energy Technology Data Exchange (ETDEWEB)

    Meshi, L. [Department of Materials Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105 (Israel); Zenou, V. [Nuclear Research Center-Negev, P.O. Box 9001, Beer-Sheva (Israel); Ezersky, V. [Department of Materials Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105 (Israel); Munitz, A. [Nuclear Research Center-Negev, P.O. Box 9001, Beer-Sheva (Israel); Talianker, M. [Department of Materials Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105 (Israel)]. E-mail: mital@bgumail.bgu.ac.il

    2005-10-27

    A new ternary aluminide U{sub 2}FeAl{sub 20} with the approximate composition Al-4.2at% Fe-8.5at% U was observed in the Al-rich corner of the U-Al-Fe system. Transmission electron microscopy and electron microdiffraction technique were used for characterization of the structure of this phase. It has a tetragonal unit cell with the parameters a=12.4A and c=10.3A and can be described by the space group I4-bar 2m.

  12. Tetragonal phase in Al-rich region of U-Fe-Al system

    International Nuclear Information System (INIS)

    A new ternary aluminide U2FeAl20 with the approximate composition Al-4.2at% Fe-8.5at% U was observed in the Al-rich corner of the U-Al-Fe system. Transmission electron microscopy and electron microdiffraction technique were used for characterization of the structure of this phase. It has a tetragonal unit cell with the parameters a=12.4A and c=10.3A and can be described by the space group I4-bar 2m

  13. AlN/IDT/AlN/Sapphire SAW Heterostructure for High-Temperature Applications.

    Science.gov (United States)

    Legrani, Ouarda; Aubert, Thierry; Elmazria, Omar; Bartasyte, Ausrine; Nicolay, Pascal; Talbi, Abdelkrim; Boulet, Pascal; Ghanbaja, Jaafar; Mangin, Denis

    2016-06-01

    Recent studies have evidenced that Pt/AlN/Sapphire surface acoustic wave (SAW) devices are promising for high-temperature high-frequency applications. However, they cannot be used above 700°C in air atmosphere as the Pt interdigital transducers (IDTs) agglomerate and the AlN layer oxidizes in such conditions. In this paper, we explore the possibility to use an AlN protective overlayer to concurrently hinder these phenomena. To do so, AlN/IDT/AlN/Sapphire heterostructures undergo successive annealing steps from 800°C to 1000°C in air atmosphere. The impact of each step on the morphology, microstructure, and phase composition of AlN and Pt films is evaluated using optical microscopy, scanning and transmission electron microscopy (SEM and TEM), X-ray diffraction (XRD), and secondary ion mass spectroscopy (SIMS). Finally, acoustical performance at room temperature of both protected and unprotected SAW devices are compared, as well as the effects of annealing on these performance. These investigations show that the use of an overlayer is one possible solution to strongly hinder the Pt IDTs agglomeration up to 1000°C. Moreover, AlN/IDT/AlN/Sapphire SAW heterostructures show promising performances in terms of stability up to 800°C. At higher temperatures, the oxidation of AlN is more intense and makes it inappropriate to be used as a protective layer. PMID:27076407

  14. Sintering Behavior of CNT Reinforced Al6061 and Al2124 Nanocomposites

    OpenAIRE

    2014-01-01

    Ball milling and spark plasma sintering were successfully used to produce carbon nanotube reinforced Al6061 and Al2124 nanocomposites which have potential applications in the fields of aerospace, automotive, electronics, and high precision instrumentation. Al2124 and Al6061 nanocomposite powders containing 0.5 to 2 wt.% CNTs prepared through sonication and wet ball milling were spark plasma sintered at 400, 450, and 500°C for 20 minutes under a pressure of 35 MPa. CNTs were better dispersed, ...

  15. Microstructure and mechanical properties of Al2O3/TiAl composite

    Institute of Scientific and Technical Information of China (English)

    AI Tao-tao; WANG Fen; ZHU Jian-feng

    2006-01-01

    Al2O3/TiAl composites were fabricated by PAXD (pressure-assisted exothermic dispersion) method. The effects of Nb2O5 content on the microstructure and mechanical properties of the composites were investigated. The results show that the ultimate phases of the composite consist of TiAl, Ti3Al, Al2O3 and a small amount of NbAl3. SEM reveals that a submicron γ+(α2/γ) dual phases structure can be presented after sintered at 1 200 ℃. Furthermore, with the increase of Nb2O5 content, the ratio of TiAl to Ti3Al phase decreases correspondingly, the grains of the composites are remarkably refined, and the produced Al2O3 particles are uniformly dispersed. When 6% Nb2O5 is added, the composite has the best comprehensive properties. It exhibits a Vickers hardness of 4.77 GPa and a bending strength of 642 MPa. Grain-refinement and dispersion-strengthening are the main strengthening mechanisms.

  16. Production of AlN-Si-Al Ceramic-Metal Composites via Pressurless Infiltration Method

    OpenAIRE

    KALEMTAŞ, Ayşe; ARSLAN, Gürsoy; KARA, Ferhat

    2014-01-01

    In this work, the production of light (∼2,9 g/cm3) and dense (> 99 %) AlN based ceramic metal composites was conducted by the pressureless melt infiltration method. These composites contain a high ceramic volume fraction (> 50 vol %) which is the result of the reaction between Si3N4 and Al in the Si3N4-Al system. The production of the ceramic-metal composites was achieved via infiltrating 2024 Al alloys at different temperatures and holding times into the porous pellets which were prepared us...

  17. Implementación de un método de purificación consistente y virológicamente seguro del anticuerpo monoclonal CB.Hep-1 empleado en la purificación el antígeno de superficie del virus de la hepatitis B

    OpenAIRE

    Valdés Véliz, Rodolfo

    2007-01-01

    Aborda la implementación de un método eficiente y consistente para la purificación del anticuerpo monoclonal (AcM) CB.Hep-1 empleado en la purificación del antígeno de superficie del virus de la Hepatitis B (AgsVHBr), así como la demostración de su capacidad de eliminación de virus. También se exploró la potencialidad del tratamiento térmico del AgsVHBr en presencia de KSCN para inactivar virus. El empleo de este AcM brinda una alta selectividad y originalidad al método de obtención del AgsVH...

  18. Coating of a layer of Au on Al13 : The findings of icosahedral Al@Al12Au20- and Al12Au202- fullerenes using ab initio pseudopotential calculations

    Science.gov (United States)

    Kumar, Vijay

    2009-02-01

    We report results of ab initio pseudopotential calculations on the nanocoating of gold on an icosahedral Al13 cluster and the findings of icosahedrally symmetric endohedral Al@Al12Au20- and empty cage Al12Au202- compound fullerenes formed of metal atoms. Twelve Al atoms cap the pentagonal faces of a dodecahedral Au20 cage in which each Au atom has three Al atoms and three Au atoms as nearest neighbors. Mixing of Al13 and Au20 magic clusters leads to a large heat of formation of 0.55 eV/atom and high stability of the Al@Al12Au20 compound fullerene. The binding energies of Al12Au20 and Al@Al12Au20 are 3.017 and 3.007 eV/atom, respectively, which are much larger than 2.457 eV/atom for Au32 fullerene, leading to the possibility of their high abundance.

  19. Deletion of ALS5, ALS6 or ALS7 increases adhesion of Candida albicans to human vascular endothelial and buccal epithelial cells

    OpenAIRE

    Zhao, Xiaomin; Oh, Soon-Hwan; Hoyer, Lois L.

    2007-01-01

    C. albicans yeast forms deleted for ALS5, ALS6 or ALS7 are more adherent than a relevant control strain to human vascular endothelial cell monolayers and buccal epithelial cells. In the buccal and vaginal reconstituted human epithelium (RHE) disease models, however, mutant and control strains caused a similar degree of tissue destruction. Deletion of ALS5 or ALS6 significantly slowed growth of the mutant strain; this phenotype was not affected by addition of excess uridine to the culture medi...

  20. Melting Transition of Small Aluminium Clusters Al11-20

    Institute of Scientific and Technical Information of China (English)

    ZHANG Wei; ZHANG Feng-Shou; ZHU Zhi-Yuan

    2007-01-01

    Heat capacities of small aluminium clusters Al11-20 are investigated using MD simulation with empirical manybody Gupta potential. The heat capacities of some clusters Al11, Al12, Al13 and Al19 show well-defined peaks while the heat capacities of Al15-18 indicate a gradual melting transition. The spectra of isomers obtained by quenches along the MD trajectory give good interpretation for those results.

  1. Kerja Perspektif Al-Qur'an

    Directory of Open Access Journals (Sweden)

    Ahmad Munir

    2011-05-01

    Full Text Available The moslem ethics of life is based on movement as ex­pressed in certain terms like al-sharī’ah, al-tarīqah, al-sirāt, al-sabīl and al-manhaj, that make sense of way and teachings to achieve good life. Islam obliges and gives appreciation of the achievements of Mus­lims. The Qur’an uses several terms to refer to such work; ‘charity, kasb, juhd, ibtighâ’, sa ’yu and su ’âl. From this concept, the Qur’an considers work as nob­le, while begging is despicable. Work means thankful to God for the potential He bestows. The Qur’an promotes work not only because it is the way to achieve the wealth, but also because it possesses the its sacred value for the benefit of fulfilling livelihood. Therefore the work should also be done based on ethical values .

  2. 26Al in the interstellar medium

    International Nuclear Information System (INIS)

    Several different lines of physical reasoning have converged on the importance of the radioactive nucleus 26Al. The sciences of meteoritics, nucleosynthesis, gamma-ray astronomy, galactic chemical evolution, solar system formation, and interstellar chemistry all place this nucleus in a central position with possible profound implications. Perhaps more importantly the study of this radioactivity can unite these diverse fields in a complicated framework which will benefit all of them. This review traces the evolution of ideas concerning 26Al in the context of these disciplines. 26Al was first discussed for the possibility that its decay energy could melt meteorite parent bodies, and its daughter, 26Mg, was later found in meteorites with enhanced abundance. It was also among the first radioactivities expected to be synthesized in interestingly large quantities in nulceosynthetic events. The first definitive detection of gamma-rays from an interstellar radioactivity is that of 1.809 MeV gamma-rays from 26Al. This discovery has many implications, some of which are outlined here. The whole problem of isotopic anomalies in meteorites is greatly influenced by the specific issues surrounding excess 26Mg, whether it represents in situ decay of 26Al or memory of conditions of the ISM. The relationships among these ideas and their implications are examined. (orig.)

  3. Cd ion implantation in AlN

    International Nuclear Information System (INIS)

    Highlights: ► Cd ion implanted in AlN thin films. ► XRD shows damage produced during implantation. ► Annealing recovers damage in low fluence sample. ► RBS/C measurements show that Cd occupies substitutional sites. ► Cd can be a good candidate for p-type doping. - Abstract: AlN thin films were implanted with cadmium, to fluences of 1 × 1013 and 8 × 1014 at/cm2. The implanted samples were annealed at 950 °C under flowing nitrogen. Although implantation damage in AlN is known to be extremely stable the crystal could be fully recovered at low fluences. At high fluences the implantation damage was only partially removed. Implantation defects cause an expansion of the c-lattice parameter. For the high fluence sample the lattice site location of the ions was studied by Rutherford Backscattering/Channelling Spectrometry. Cd ions are found to be incorporated in substitutional Al sites in the crystal and no significant diffusion is seen upon thermal annealing. The observed high solubility limit and site stability are prerequisite for using Cd as p-type dopant in AlN.

  4. Survey and alignment at the ALS

    International Nuclear Information System (INIS)

    This paper describes survey and alignment at the Lawrence Berkeley National Laboratory's Advanced Light Source (ALS) accelerators from 1993 to 1995. The ALS is a 1.0 - 1.9 GeV electron accelerator producing extremely bright synchrotron light in the UV and soft-X-ray wavelengths. At the ALS, electrons are accelerated in a LINAC to 50 MeV, injected into a booster ring for further acceleration and finally injected into the storage ring. This is shown schematically in Figure 1. The storage ring, some 200 m in circumference, has been run with electron currents above 400 mA with lifetimes as high as 24 hours. The ALS is a third generation light source and requires for efficient storage ring operation, magnets aligned to within 150 mm of their ideal position. To accomplish this a network of monuments was established and their positions measured with respect to one another. The data was reduced using GEONET'' and STAR*NET'' software. Using the monuments as reference points, magnet positions were measured and alignment confirmed using the Kem Electronic Coordinate Determination System (ECDS''). A number of other papers dealing with survey and alignment (S ampersand A) at the ALS have been written that may further elucidate some details of the methods and systems described in this paper

  5. Direct laser cooling Al+ ions optical clocks

    CERN Document Server

    Zhang, J; Luo, J; Lu, Z H

    2016-01-01

    Al$^+$ ions optical clock is a very promising optical frequency standard candidate due to its extremely small blackbody radiation shift. It has been successfully demonstrated with indirect cooled, quantum-logic-based spectroscopy technique. Its accuracy is limited by second-order Doppler shift, and its stability is limited by the number of ions that can be probed in quantum logic processing. We propose a direct laser cooling scheme of Al$^+$ ions optical clocks where both the stability and accuracy of the clocks are greatly improved. In the proposed scheme, two Al$^+$ ions traps are utilized. The first trap is used to trap a large number of Al$^+$ ions to improve the stability of the clock laser, while the second trap is used to trap a single Al$^+$ ions to provide the ultimate accuracy. Both traps are cooled with a continuous wave 167 nm laser. The expected clock laser stability can reach $9.0\\times10^{-17}/\\sqrt{\\tau}$. For the second trap, in addition to 167 nm laser Doppler cooling, a second stage pulsed ...

  6. Epistemologi Penafsiran Ilmiah al-Qur’an

    Directory of Open Access Journals (Sweden)

    Sujiat Zubaidi Saleh

    2011-04-01

    Full Text Available The main objective in interpretating al-Qur’an is to explain the will of God and the operationalization of the will in the field of faith, laws, or ethics. At the phase of Islamic civilization, when the linguistic and philosophy science codified, raises the various method (manhaj, and interpretation streams (ittijahat, exegesis school (madzhab of al-Qur’an. In addition, also found in various shades of interpretation such as: fiqhi, kalami, balaghi, and isyari/ sufi, even philosophical. It was also discovered methods of tafsir ‘ilmi oriented to the utilization of the discovering science in order to prove the truth of scientific fact. The last pattern was ignited pro and contra among scholars and mufassir. As we know that alQur’an was not descended in the condition of cultural vacuum but it is a form of dialectics and the response to the condition and social situation, politic, and religion. This is relevant to the characteristics of al-Qur’an which can be applied throughout the periods. As we understood that interpretation is one of reflections of thought and civilization products. It always developed and influenced by the dynamics of human civilization, so in its development, science and al-Qur’an can be brought together in dialogue, although with some prerequisites specified interpretation.

  7. MOSQUE ARCHITECTURE AS A SUSTAINABLE BUILDING IN URBAN (Case Study: Al Markas Al Islamic Mosque Makassar

    Directory of Open Access Journals (Sweden)

    Imriyanti Imriyanti

    2014-02-01

    Full Text Available Abstract Mosque Architecture is a part of Islamic architecture. Mosque should be fused with elements of nature because its function as a place to pray to God who created the universe. Al Markas Al Islamic Makassar mosque is used as a center of Islamic aspirations of the people and the government to accommodate all the activities of moslems in Makassar. Through this function, the provision of Al Markas Al Islamic mosque began from the desire of Islamic societies in Makassar, which wants the Islamic center to be equipped with facilities and infrastructure as well as architectural, monumental buildings and structures that can be last for hundreds of years (continuous, blend with the environment, and also can be used by the public. Having regard to the function of a mosque especially at the Al Markas Al Islamic Makassar mosque, then the problem that arise is how the Al Markas Al Islamic mosque can be survived/sustainable  in order  to function  as a place  of worship  and  as a center  of Islam.  This research  is a descriptive qualitative research that is trying to generate data in the form of systematic and accurate picture of the object of study. The sustaiprophetlity  of Al Markas AL Islamic mosque can be known through the concept of Islam  in accordance with the view of Islam as well as the sustaiprophetlity of the buildings that seen in the spatial pattern of the mosque, appearance, natural lighting, natural ventilation, and user behavior of the mosque. Keywords: mosque architecture, sustaiprophetlity, view of Islam     Abstrak Arsitektur masjid merupakan bagian dari arsitektur Islam. Bangunan masjid sebaiknya dapat menyatu dengan unsur alam karena masjid difungsikan sebagai wadah dalam bersujud/sembahyang  kepada Allah SWT yang menciptakan alam semesta ini. Masjid Al Markas Al Islamic Makassar merupakan kompleks kegiatan Islam yang digunakan sebagai pusat aspirasi masyarakat  dan pemerintahan  yang dapat menampung

  8. Instability of TiC and TiAl3 compounds in Al-10Mg and Al-5Cu alloys by addition of Al-Ti-C master alloy

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    The performance of Al-Ti-C master alloy in refining Al-10Mg and A1-5Cu alloys was studied by using electron probe micro-analyzer (EPMA) and X-ray diffractometer (XRD) analysis.The results indicate that there are obvious fading phenomena in both Al-10Mg and Al-5Cu alloys with the addition of Al-5Ti-0.4C refiner which contains TiC and TiAl3 compounds.Mg element has no influence on the stability of TiC and TiAl3, while TiC particles in Al-10Mg alloy react with Al to form Al4C3 particles, resulting in the refinement fading.However, TiC particles are relatively stable in Al-5Cu alloy, while TiAl3 phase reacts with Al2Cu to produce a new phase Ti(Al, Cu)2, which is responsible for the refinement fading in Al-5Cu alloy.These indicate that the refinement fading will not occur only when both the TiC particles and TiAl3 compound of Al-Ti-C refiner are stable in Al alloys.

  9. Study of corrosion inhibition of coupled Al2Cu–Al and Al3Fe–Al by cerium cinnamate using scanning vibrating electrode technique and scanning ion-selective electrode technique

    International Nuclear Information System (INIS)

    Highlights: • The corrosion inhibition of coupled Al2Cu–Al and Al3Fe–Al by cerium cinnamate was studied. • SVET and SIET were used to study the distribution of current densities and pH. • The corrosion inhibition mechanisms were analyzed. - Abstract: The galvanic corrosion of the coupled Al2Cu and Al as well as Al3Fe and Al in 0.005 M NaCl in and without the presence of cerium cinnamate was studied. Scanning vibrating electrode technique and scanning ion-selective electrode technique were used to measure the distribution of current densities and pH. The results indicate that cerium cinnamate played inhibiting effect on the coupling corrosion of Al2Cu–Al and Al3Fe–Al. For Al2Cu–Al, the inhibition was mainly influenced by the production of cerium oxide/hydroxide on Al2Cu surface. However, for Al3Fe–Al, the inhibition was mainly influenced by the adsorbed cerium cinnamate on the Al3Fe surface

  10. MgAl2O4–-Al2O3 solid solution interaction: mathematical framework and phase separation of -Al2O3 at high temperature

    Indian Academy of Sciences (India)

    Soumen Pal; A K Bandyopadhyay; S Mukherjee; B N Samaddar; P G Pal

    2011-07-01

    Although existence of MgAl2O4–-Al2O3 solid solution has been reported in the past, the detailed interactions have not been explored completely. For the first time, we report here a mathematical framework for the detailed solid solution interactions of -Al2O3 in MgAl2O4 (spinel). To investigate the solid solubility of -Al2O3 in MgAl2O4, Mg–Al spinel (MgO–Al2O3; = 1, 1.5, 3, 4.5 and an arbitrary high value 30) precursors have been heat treated at 1000°C. Presence of only non-stoichiometric MgAl2O4 phase up to = 4.5 at 1000°C indicates that alumina (as -Al2O3) present beyond stoichiometry gets completely accommodated in MgAl2O4 in the form of solid solution. → alumina phase transformation and its subsequent separation from MgAl2O4 has been observed in the Mg–Al spinel powders ( > 1) when the 1000°C heat treated materials are calcined at 1200°C. In the mathematical framework, unit cell of MgAl2O4 (Mg8Al16O32) has been considered for the solid solution interactions (substitution of Mg2+ ions by Al3+ ions) with -Al2O3. It is suggested that combination of unit cells of MgAl2O4 takes part in the interactions when > 5 (MgO–Al2O3).

  11. Al- Khwarizmi and axiomatic foundation of algebra

    International Nuclear Information System (INIS)

    This paper intends to investigate the axiomatic foundations of algebra, as they were presented in the book of algebra of al-Khwarizmi (9 th century), and as they were developed in many subsequent Arabic works. The paper gives also a description of algebra evolution towards a discipline independent ofgeometry and arithmetic: the two disciplines whosemarriage had led to its birth.By an in depth reading of some details in the text of al Khwarizmi , we concluded that this mathematician intended to lay down the axiomatic foundations of that new discipline. His resort to arithmetical and geometrical means was a way of making his theory more accessible. He used them to justify the axioms: those that were not explicitly introduced per se, and those that were remained implicit. The paper also relies on some unedited writingsof al-Khwarizmi's successors, which could shedlight on the ways they used to consolidate the foundations of algebra and improve its methods. (author)

  12. Moessbauer studies on Al-Co ferrites

    International Nuclear Information System (INIS)

    Moessbauer spectroscopy studies have been performed on the spinel CoAlxFe2-xO4 (.2≤x≤1.7) in the temperature range 77-750 K using either a liquid nitrogen bath cryostat or a furnace. The samples are magnetic at 77 K giving spectra that have magnetic sextets coexisting with a central line which increases in population with the Al-content indicating relaxation effects. The data shows that Al possesses no preference to either tetrahedral or octahedral sites of the ferrite over the whole range of concentration. The Moessbauer hyperfine interaction parameters and magnetic transition temperatures were determined. As expected the hyperfine field and Curie temperature decrease when the Al-content increases. (orig.)

  13. Magnetic Properties of NdAl2

    DEFF Research Database (Denmark)

    Bak, P.

    1974-01-01

    The magnetic properties of NdAl2 are calculated using a Hamiltonian including crystal-field and isotropic exchange interaction terms. A two-dimensional mean-field theory is evaluated to calculate single-crystal magnetization curves. It is shown that the magnetic properties can be understood using...... the crystal-field parameters derived from the magnetic exciton spectrum measured by Houmann et al. by means of inelastic neutron scattering. The combined lambda -Schottky anomaly in the heat capacity is explained. No additional parameters are introduced.......The magnetic properties of NdAl2 are calculated using a Hamiltonian including crystal-field and isotropic exchange interaction terms. A two-dimensional mean-field theory is evaluated to calculate single-crystal magnetization curves. It is shown that the magnetic properties can be understood using...

  14. Autologous Stem Cell Transplant for AL Amyloidosis

    Directory of Open Access Journals (Sweden)

    Vivek Roy

    2012-01-01

    Full Text Available AL amyloidosis is caused by clonal plasma cells that produce immunoglobulin light chains which misfold and get deposited as amyloid fibrils. Therapy directed against the plasma cell clone leads to clinical benefit. Melphalan and corticosteroids have been the mainstay of treatment for a number of years and the recent availability of other effective agents (IMiDs and proteasome inhibitors has increased treatment options. Autologous stem cell transplant (ASCT has been used in the treatment of AL amyloidosis for many years. It is associated with high rates of hematologic response and improvement in organ function. However, transplant carries considerable risks. Careful patient selection is important to minimize transplant related morbidity and mortality and ensure optimal patient outcomes. As newer more affective therapies become available the role and timing of ASCT in the overall treatment strategy of AL amyloidosis will need to be continually reassessed.

  15. Thermal Properties of Al-50%Si Alloys

    Institute of Scientific and Technical Information of China (English)

    Akio Nishimoto; Katsuya Akamatsu; Kazuyoshi Nakao; Kazuo Ichii

    2004-01-01

    In order to prepare a hypereutectic Al-Si alloy with low coefficients of thermal expansion (CTE), Al-50was produced by powder metallurgy (P/M) and ingot metallurgy (I/M). P/M specimen was prepared by mechanical alloying(MA) and pulsed electric-current sintering (PECS). The microstructures of specimens were characterized by optical microscopy and scanning electron microscopy (SEM) equipped with energy dispersive X-ray spectroscopy (EDS). Vickers microhardness and CTE measurements were performed. The grains in the P/M specimen were refined with increasing MA time. Primary Si and eutectic Si in the I/M specimen were remarkably refined by adding minute amounts of Sr. The CTE of P/M and I/M specimens were estimated as 7.8×10-6 and 10.7×10-6, respectively. These values were as same as a CTE of Al2O3 ceramics.

  16. Kritik Terhadap Pemikiran Tasawuf Al-Raniri

    Directory of Open Access Journals (Sweden)

    Syaifan Nur

    2013-12-01

    Full Text Available Abstract : Al-Raniri is often positioned by some scholars as “superior” figure, which is contrasted to Hamzah Fansuri and Syamsuddin Sumaterani, and that is why they predicate him as one of pioneer of Islamic reformer in Malay- Indonesian archipelago. Anti-wujūdiyyah Sufism campaign by al-Raniri quite successful to some extent to amputate the rate of development of philosophical Sufism was brought by Fansuri and Sumaterani in the one hand, and strike off the nature of moral Sufism in the other, redeemed by bloodshed. This article discussed the “superiority” of al-Raniri’s thought of Sufism, viewed from a broader spectrum, either in relation to problems of faith or theology and politics surrounding the circumstance of his time.Keywords : Philosophical tasawuf, neo-sufism, panteism, tajalli, God’s attributeAbstrak : Al-Raniri oleh banyak kalangan seringkali diposisikan sebagai tokoh “superior” yang diperlawankan dengan Hamzah Fansuri dan Syamsuddin Sumaterani, dan itu sebabnya para ahli memberinya predikat sebagai seorang pelopor pembaru (mujaddid Islam di Nusantara. Anti tasawuf wujūdiyyah yang dikampanyekan oleh al-Raniri cukup berhasil mengamputasi laju perkembangan tasawuf falsafi yang dibawa oleh Fansuri dan Sumaterani di satu sisi, dan melancarkan laju corak tasawuf akhlaki di sisi lain, yang ditebus dengan cara pertumpahan darah. Tulisan ini mendiskusikan “superioritas” pemikiran tasawuf al-Raniri tersebut, dilihat dari spektrum yang lebih luas, baik menyangkut persoalan keyakinan atau teologi maupun politik yang mengitari situasi zamannya.Kata kunci : Tasawuf falsafi , neo-sufisme, panteisme, tajalli, sifat Tuhan

  17. Fabrication of Al-Al3Ti/Ti3Al Functionally Graded Materials under a Centrifugal Force

    Directory of Open Access Journals (Sweden)

    Yoshimi Watanabe

    2010-09-01

    Full Text Available Fabrication of Al-Al3Ti functionally graded materials (FGMs under the centrifugal force has recently attracted some attention. The controlled compositional gradient of the fabricated FGMs, the low cost of the process, and the good mold filling, are the main advantages of the centrifugal method (CM. Using the conventional CM techniques such as the centrifugal solid-particle method and centrifugal in-situ method, FGMs rings with gradually distributed properties could be achieved. As a more practical choice, the centrifugal mixed-powder method (CMPM was recently proposed to obtain FGMs containing nano-particles selectively dispersed in the outer surface of the fabricated parts. However, if a control of the particles morphology, compound formulas or sizes, is desired, another CM technique is favored. As a development of CMPM, our novel reaction centrifugal mixed-powder method (RCMPM has been presented. Using RCMPM, Al‑Al3Ti/Ti3Al FGMs with good surface properties and temperature controlled compositional gradient could be achieved. In this short review, this novel method will be discussed in detail and the effect of RCMPM processing temperature on the reinforcement particles morphology, size and distribution through the fabricated samples, will be reviewed.

  18. Total energy, equation of state and bulk modulus of AlP, AlAs and AlSb semiconductors

    Indian Academy of Sciences (India)

    A R Jivani; H J Trivedi; P J Gajjar; A R Jani

    2005-01-01

    Recently proposed model potential which combines both linear and quadratic types of interactions is employed for the investigation of some properties like the total energy, equation of state and bulk modulus of AlP, AlAs and AlSb semiconductor compounds using higher-order perturbation theory. The model potential parameter is determined using zero pressure condition. The ratio of the covalent bonding term E cov to the second-order term 2 is 6.77% to 11.85% which shows that contribution from higher order terms are important for zinc-blende-type crystals. The calculated numerical results of the total energy, energy band gap at Jones-zone face and bulk modulus of these compounds are in good agreement with the experimental data and found much better than other such theoretical findings. We have also studied pressure–volume relations of these compounds. The present study is carried out using six different screening functions along with latest screening function proposed by Sarkar et al. It is found from the present study that effect of exchange and correlation is clearly distinguishable.

  19. Diffusion AlSi-MeCrAlY coatings obtained on intermetallic γ-TiAl phase

    Directory of Open Access Journals (Sweden)

    M. Góral

    2012-12-01

    Full Text Available Purpose: The development of new protective coatings for TiAl intermetallics was conducted. The MeCrAlYAlSi slurry was used with different amount of aluminium-silicon powder in the binder.Design/methodology/approach: The slurry consisting of aluminium and silicon powder with the addition of MeCrAlY powder were used during the procedure. The inorganic solution made from chromic and phosphoric acid was applied as a binder. The preliminary research of microstructure of obtained coatings was conducted.Findings: The obtained coating consisting of 3 or 4 zones (depending on chemical composition of the slurry was obtained during the annealing process (950°C/4h.Research limitations/implications: The research results revealed the possibility of obtaining coatings with complex phase and chemical composition.Practical implications: Many problems connected with sedimentation of heavier MeCrAlY powder were observed.Originality/value: The copletele new technologies was described in article

  20. Melting, Processing, and Properties of Disordered Fe-Al and Fe-Al-C Based Alloys

    Science.gov (United States)

    Satya Prasad, V. V.; Khaple, Shivkumar; Baligidad, R. G.

    2014-09-01

    This article presents a part of the research work conducted in our laboratory to develop lightweight steels based on Fe-Al alloys containing 7 wt.% and 9 wt.% aluminum for construction of advanced lightweight ground transportation systems, such as automotive vehicles and heavy-haul truck, and for civil engineering construction, such as bridges, tunnels, and buildings. The melting and casting of sound, porosity-free ingots of Fe-Al-based alloys was accomplished by a newly developed cost-effective technique. The technique consists of using a special flux cover and proprietary charging schedule during air induction melting. These alloys were also produced using a vacuum induction melting (VIM) process for comparison purposes. The effect of aluminum (7 wt.% and 9 wt.%) on melting, processing, and properties of disordered solid solution Fe-Al alloys has been studied in detail. Fe-7 wt.% Al alloy could be produced using air induction melting with a flux cover with the properties comparable to the alloy produced through the VIM route. This material could be further processed through hot and cold working to produce sheets and thin foils. The cold-rolled and annealed sheet exhibited excellent room-temperature ductility. The role of carbon in Fe-7 wt.% Al alloys has also been examined. The results indicate that Fe-Al and Fe-Al-C alloys containing about 7 wt.% Al are potential lightweight steels.

  1. Adhesion of metal carbide/nitride interfaces: Al/TiC and Al/TiN

    Science.gov (United States)

    Liu, L. M.; Wang, S. Q.; Ye, H. Q.

    2003-12-01

    We employ density functional theory to investigate and compare Al/TiC and Al/TiN interfaces by electronic structures, relaxed atomic geometries and adhesions. The results show that the preferred bonding site is the interfacial Al atoms above the ceramic's metalloid atoms for both systems. The calculated adhesion energies are quantitatively in agreement with other calculated and experimental results of Al on the carbide and nitride. A detailed comparison of the adhesion energies and relaxed structures shows weaker bonding and less relaxation in the Al/nitride case, which is correlated with the lower surface energy of the ceramic. We have thoroughly characterized the electronic structure and determined that the polar covalent Al3sp-C(N)2s bonds constitute the primary interfacial bonding interaction. The larger overlapping bonding states at the Al/TiC interface reveal the reason why it exhibits relatively larger adhesion energy. Cleavage may take place preferentially at the interface, especially for the Al/TiN, which is in agreement with experimental results.

  2. Adhesion of metal-carbide/nitride interfaces: Al/TiC and Al/TiN

    International Nuclear Information System (INIS)

    We employ density functional theory to investigate and compare Al/TiC and Al/TiN interfaces by electronic structures, relaxed atomic geometries and adhesions. The results show that the preferred bonding site is the interfacial Al atoms above the ceramic's metalloid atoms for both systems. The calculated adhesion energies are quantitatively in agreement with other calculated and experimental results of Al on the carbide and nitride. A detailed comparison of the adhesion energies and relaxed structures shows weaker bonding and less relaxation in the Al/nitride case, which is correlated with the lower surface energy of the ceramic. We have thoroughly characterized the electronic structure and determined that the polar covalent Al3sp-C(N)2s bonds constitute the primary interfacial bonding interaction. The larger overlapping bonding states at the Al/TiC interface reveal the reason why it exhibits relatively larger adhesion energy. Cleavage may take place preferentially at the interface, especially for the Al/TiN, which is in agreement with experimental results

  3. InAlGaAs/AlGaAs quantum wells: line widths, transition energies and segregation

    DEFF Research Database (Denmark)

    Jensen, Jacob Riis; Hvam, Jørn Märcher; Langbein, Wolfgang

    2000-01-01

    We investigate the optical properties of InAlCaAs/AlGaAs quantum wells pseudomorphically grown on GaAs using molecular beam epitaxy (MBE). The transition energies, measured with photoluminescence (PL), are modelled solving the Schrodinger equation, and taking into account segregation in the group...

  4. Introducción al derecho

    OpenAIRE

    Collado Luis, Santiago

    2012-01-01

    Manual de la asignatura introducción al derecho. Nivel educativo: Grado El origen de este texto –materiales docentes- que lleva por título “Introducción al Derecho” ha sido escrito respondiendo a una estricta necesidad docente y por tanto necesariamente pedagógica. En efecto, era totalmente necesario que los alumnos, del Grado de Administración y Dirección de Empresas y otras titulaciones no jurídicas, contasen con un texto para facilitar el estudio de las principales categorías conceptual...

  5. Quadrupole scattering in PrAl2

    Science.gov (United States)

    Sablik, M. J.; Pureur, P.; Creuzet, G.; Fert, A.; Levy, P. M.

    1983-10-01

    We derive the spontaneous anisotropy of the resistivity of the ferromagnetic compound PrAl2 from magnetoresistance measurements on a single crystal of PrAl2. We ascribe this spontaneous anisotropy of the resistivity to scattering of the conduction electrons by the thermal quadrupole disorder and we account for our experimental results by using the theoretical model previously developed by us. We find that quadrupole scattering gives a very important contribution to the total magnetic disorder (spin and quadrupole) resistivity but that only a small part of this quadrupole contribution is anisotropic.

  6. Amyotrofisen lateraaliskleroosin (ALS) fysioterapia : Systemaattinen kirjallisuuskatsaus

    OpenAIRE

    Finne, Ida

    2015-01-01

    Amyotrofinen lateraaliskleroosi eli ALS on harvinainen motoneuronisairaus, jonka ominaispiirteenä on selkäytimen, aivorungon ja aivokuoren motoneuroneiden etenevä degeneraatio ja tuhoutuminen. Tähän parantumattomaan sairauteen sairastuu Suomessa vuosittain noin 120–150 henkilöä. Keskimääräinen sairastumisikä on noin 60 vuotta ja elinikä diagnoosin saamisen jälkeen on noin 3 - 5 vuotta. Fysioterapia on tärkeä osa ALS-potilaan hoitoa ja kuntoutusta. Fysioterapian vaikutut-tavuutta on tästä ...

  7. Aspectos biopsicosociales asociados al embarazo adolescente

    OpenAIRE

    Regina Cogollo Jiménez

    2012-01-01

    Introducción: El embarazo en la adolescencia, es un evento inesperado, sorpresivo. Este artículo establece la importancia de identificar los aspectos biopsicosociales asociados al embarazo adolescente en las embarazadas asistentes al programa de Control Prenatal de una Empresa Social del Estado de nivel 1 en Montería en 2009, para comprender las actitudes y los comportamientos asociados a esta etapa tan temprana. Materiales y Métodos: Es un estudio descriptivo, cuantitativo, de corte transver...

  8. Recent research highlights from the ALS OML

    OpenAIRE

    Yashchuk, Valeriy V.

    2013-01-01

    The main mission of the Optical Metrology Laboratory (OML) at the Advanced Light Source (ALS) is to ensure state-of-the-art performance of beamline optics. New beamlines and instruments laid out in the ALS strategic plan as well as the plan for New Generation Light Source (NGLS) facility all involve increasingly complex optical systems that need ultra-high precision optics to achieve the specifications and goals of their state-of-the art research programs. In order to manufacture, measure, tu...

  9. The wobbler mouse, an ALS animal model

    DEFF Research Database (Denmark)

    Moser, Jakob Maximilian; Bigini, Paolo; Schmitt-John, Thomas

    2013-01-01

    This review article is focused on the research progress made utilizing the wobbler mouse as animal model for human motor neuron diseases, especially the amyotrophic lateral sclerosis (ALS). The wobbler mouse develops progressive degeneration of upper and lower motor neurons and shows striking...... disease mechanism and testing various therapeutic approaches and discuss the relevance of these advances for human ALS. The identification of the causative mutation linking the wobbler mutation to a vesicle transport factor and the research focussed on the cellular basis and the therapeutic treatment of...

  10. The ALS Storage Ring RF System

    International Nuclear Information System (INIS)

    The ALS Storage Ring RF System is characterized by the use of the following features: (1) High power loading of two single cell cavities. (2) The use of a tubular ceramic input window employing aperture coupling. (3) The use of waveguide filters and matchers designed for HOM absorption. (4) A comprehensive HOM monitoring system. (5) The use of waveguide water-wedge loads for the magic tee and circulator loads. The results of cavity measurements and high power tests are reported together with the performance of the system during the commissioning and operation phases of the ALS project. Plans for future window development are discussed

  11. Al-Yawahir Al-Saniyya Fi Sarh-Al-Yarrumiyya, de Al-Ta c Alibi (s.VII-XIV)

    OpenAIRE

    Bellachehab, Ahmed

    1994-01-01

    Edición critica, realizada sobre varios manuscritos, de una interesante fuente gramatical magrebi, del siglo VIII de la hégira XIV de nuestra era. Estudio sobre el autor, at-ta alibi, típico gramático tardío del norte de África, y estudio sobre su producción escrita, en general y en concreto sobre este al-yawahir al-saniyya que es un interesante comentario de la celebre yarrumiyya, comentario hasta hoy inédito que representa un hito en la tradición de estudios gramaticales del occidente islám...

  12. Metamagnetism in Ce(Ga,Al)2

    Indian Academy of Sciences (India)

    K G Suresh; S Radha; A K Nigam

    2002-05-01

    Effect of Al substitution on the magnetic properties of Ce(Ga1-Al)2 ( = 0, 0.1 and 0.5) system has been studied. The magnetic state of CeGa2 is found to be FM with a C of 8 K, whereas the compounds with =0.1 and 0.5 are AFM and possess N of about 9 K. These two compounds undergo metamagnetic transition and the critical fields are about 1.2 T and 0.5 T, respectively at 2 K. These variations are explained on the basis of helical spin structure in these compounds.

  13. Periodistas: el acceso al mercado laboral

    OpenAIRE

    2006-01-01

    El presente estudio analiza la situación profesional de los Licenciados en Periodismo en España. Para ello esta investigación sigue la lógica del proceso de acceso al mercado laboral, es decir, se estudia, en primer lugar, la oferta de egresados y las demandas del sector; a continuación, se analiza la forma en la que un titulado en la Licenciatura de Periodismo accede al mercado laboral y el tiempo que tarda en hacerlo; y por último, se examinan los medios de comunicación en lo...

  14. Surface phonon polariton characteristics of In(0.04)Al(0.06)Ga(0.90)N/AlN/Al(2)O(3) heterostructure.

    Science.gov (United States)

    Ng, S S; Lee, S C; Bakhori, S K Mohd; Hassan, Z; Abu Hassan, H; Yakovlev, V A; Novikova, N N; Vinogradov, E A

    2010-05-10

    Surface phonon polariton (SPP) characteristics of In(0.04)Al(0.06)Ga(0.90)N/AlN/Al(2)O(3) heterostructure are investigated by means of p-polarized infrared (IR) attenuated total reflection spectroscopy. Two absorption dips corresponding to In(0.04)Al(0.06)Ga(0.90)N SPP modes are observed. In addition, two prominent dips and one relatively weak and broad dip corresponding to the Al(2)O(3) SPP mode, In(0.04)Al(0.06)Ga(0.90)N/Al(2)O(3) interface mode, and Al(2)O(3) bulk polariton mode, respectively, are clearly seen. No surface mode feature originating from the AlN layer is observed because it is too thin. Overall, the observations are in good agreement with the theoretical predictions. PMID:20588890

  15. One anastomosis gastric bypass: a simple, safe and efficient surgical procedure for treating morbid obesity El bypass gástrico de una anastómosis: un procedimiento simple, seguro y eficaz para tratar la obesidad mórbida

    Directory of Open Access Journals (Sweden)

    M. García-Caballero

    2004-11-01

    Full Text Available The One Anastomosis Gastric Bypass has been developed from the Mini Gastric Bypass procedure as originally described by Robert Rutledge. The modification of the original procedure consists of making a latero-lateral gastro-jejunal anastomosis instead of a termino-lateral anastomosis, as is carried out as described in the original procedure. The rationale for these changes is to try to reduce exposure of the gastric mucosa to biliopancreatic secretions because of their potentially carcinogenic effects with longer term exposure, which is the major criticism of the original technique. If we fix the jejunal loop to the gastric pouch some centimetres up to the gastro-jejunal anastomosis the biliopancreatic secretions have less possibility of coming into the gastric cavity (gravity force. Furthermore, if the anastomosis is latero-lateral this possibility is reduced even more. In addition, the intestinal loop reinforces the staple line against disruption, and also the gastric pouch against dilatation.El Bypass Gástrico de Una Anastomosis se ha desarrollado a partir del Mini Bypass Gástrico descrito por Robert Rutledge. La modificación del procedimiento original consiste en hacer una anastomosis latero-lateral en lugar de termino-lateral como se hace en la técnica original. Este cambio intenta reducir la exposición de la mucosa gástrica a la secreción bilio-pancreática, evitando así el posible efecto carcinogénico de la exposición crónica que constituye la más importante crítica del procedimiento original. Al fijar el asa de yeyuno a la nueva bolsa gástrica unos centímetros por encima de la anastomosis gastro-yeyunal, la secreción bilio-pancreática tiene menos posibilidades de entrar en la cavidad gástrica (fuerza de gravedad. Al ser la anastomosis latero-lateral esta posibilidad se reduce aún más. Además, el asa de yeyuno refuerza la línea de grapas contra su disrupción y previene la posible dilatación de la bolsa gástrica.

  16. Microstructural defects modeling in the Al-Mo system

    International Nuclear Information System (INIS)

    In this work we have utilized computer simulation techniques to study microstructural defects, such as point defects and interfaces, in the Al-Mo alloy. Such alloy is taken as a model to study the Al(fcc)/U-Mo(bcc) interface. The EAM interatomic potential used has been fitted to the formation energy and lattice constant of the AlMo3 intermetallic. Formation of vacancies for both components Al and Mo and anti-sites, AlMo and MoAl, as well as vacancy migration was studied in this structure. We found that the lowest energy defect complex that preserves stoichiometry is the antisite pair AlMo+MoAl, in correspondence with other intermetallics of the same structure. Our results also suggest that the structure of the Al(fcc)/Mo(bcc) interface is unstable, while that of the Al(fcc)/Al5Mo interface is stable, as observed experimentally. (author)

  17. Liquidus temperatures of Na3AlF6-AlF3-CaF2-KF-LiF-Al2O3 melts

    Directory of Open Access Journals (Sweden)

    Peng J.P.

    2014-01-01

    Full Text Available Temperatures for the primary crystallization of Na3AlF6-AlF3-CaF2-KF-LiF-Al2O3 system adopted in aluminum electrolysis process were determined by thermal analysis. An empirical equation was derived to describe the liquidus temperatures for the primary crystallization of this multicomponent electrolyte system: t/℃=1011 + 0.7w(AlF3 - 0.232w(AlF32 - 7.65w(Al2O3 + 0.523w(Al2O32 - 8.96w(LiF + 0.043w(LiF2 - 3.32w(KF - 0.12w(KF2 - 3.28w(CaF2 +0.037w(CaF22 + 0.091w(AlF3w(LiF + 0.074w(AlF3w(KF + 0.084w(AlF3w(CaF2 - 0.27w(Al2O3w(LiF, where w(AlF3 denotes the mass fraction of excess aluminum fluoride with respect to cryolite. While w(Al2O3 ranges from 2% to 4%, w(LiF, w(KF and w(CaF2 from 0 to 7%, and the molar ratio of NaF/AlF3 from 2.2 to 3.

  18. An impedance study of complex Al/Cu-Al{sub 2}O{sub 3} electrode

    Energy Technology Data Exchange (ETDEWEB)

    Denisova, J; Katkevics, J; Viksna, A [Faculty of Chemistry, University of Latvia, Kr. Valdemara Str. 48, Riga, LV-1013 (Latvia); Erts, D, E-mail: arturs.viksna@lu.lv [Institute of Chemical Physics, University of Latvia, Kronvalda blvd. 4, Riga, LV-1586 (Latvia)

    2011-06-23

    Electrochemical impedance spectroscopy (EIS) was used to investigate different Cu deposition regimes on Al surface obtained by internal electrolysis and to characterize properties of fabricated electrodes. EIS experimental data confirmed that Cu deposition by internal electrolysis is realized and the complex electrode system is obtained. The main difficulty in preparation of Al/Cu electrodes is to prevent aluminium oxidation before and during electrochemical deposition of Cu particles. In this work NaCl, CH{sub 3}COONa, K{sub 2}SO{sub 4}, mono- and diammonium citrate electrolytes were examined to determine their suitability for impedance measurements. Al/Cu-Al{sub 2}O{sub 3} electrode composition was approved by equivalent circuit analysis, optical and scanning electron microscope methods. The most optimal Cu deposition mode using internal electrolysis was determined. The obtained results are promising for future electrochemical fabrication of nanostructures directly on Al surfaces by internal electrolysis.

  19. FABRICATION OF Al/Al2O3 FGM ROTATING DISC

    Directory of Open Access Journals (Sweden)

    A. B. Sanuddin

    2012-06-01

    Full Text Available This study presents a method of fabricating a disc made of Al/Al2O3 functionally graded materials (FGM, using a powder metallurgy manufacturing process. The aim is to develop a processing method for a rotating disc made of FGM, by stacking the slurry, layer by layer in a radial direction. A three-layer functionally graded material of Al/Al2O3 is fabricated with compositions of 10, 20, 30 vol.% Al2O3. The ceramic composition increases from the discs inner (centre to the outer. The combination of these materials can offer the ability to withstand high temperature conditions whilst maintaining strength in extreme environments.

  20. In situ microscopy of rapidly heated nano-Al and nano-Al/WO3 thermites

    Science.gov (United States)

    Sullivan, Kyle T.; Chiou, Wen-An; Fiore, Richard; Zachariah, Michael R.

    2010-09-01

    The initiation and reaction mechanism of nano-Al and nano-Al thermites in rapid heating environments is investigated in this work. A semiconductor-based grid/stage was used, capable of in situ heating of a sample from room temperature to 1473 K, and at a rate of 106 K/s, inside an electron microscope. Nano-Al was rapidly heated in a transmission electron microscope, and before and after images indicate that the aluminum migrates through the shell, consistent with a diffusion-based mechanism. A nano-Al/WO3 composite was then heated in a scanning electron microscope. The results indicate that a reactive sintering mechanism is occurring for the nano-Al/WO3 thermite, as the products are found to be in surface contact and significantly deformed after the heating pulse.

  1. Serious Flaws in Korf et al.'s Analysis on Time Complexity of A*

    CERN Document Server

    Dinh, Hang

    2008-01-01

    Understanding the effect of a heuristic on the time complexity of the well-known A* search algorithm has been a subject of a large research body in AI. Among those researches is Korf et al.'s analysis (Korf & Reid, 1998; Korf et al., 2001; Korf, 2000a; Korf, 2000b), which concluded that the effect of a heuristic is to reduce the effective depth rather than effective branching factor. Since this conclusion conflicts with both previous analysis and recent analysis by other authors, we try to investigate the causes of such contradictions and finally find out that Korf et al.'s analysis has many serious flaws from which their main conclusion was drawn.

  2. Tensile deformation behavior of a sub-micrometer Al2O3/6061Al composite

    International Nuclear Information System (INIS)

    A 0.3 μm Al2O3/6061Al composite with 33% volume fraction of Al2O3 was fabricated by the patented squeeze-casting technology. The tensile properties were studied, and the dynamic tensile deformation behavior was investigated by an in situ TEM tensile technique. The as-cast composite exhibits excellent tensile properties with a fracture strength of 504 MPa, and the strength increases to 579 MPa after a T6 treatment. The high strength is mainly attributed to the dispersion strengthening effect of the finer sub-micrometer Al2O3 particles. Dynamic transmission electron microscopy indicates that micro-cracks initiate and propagate mainly in the matrix. The Al2O3 particles can hinder the growth and deflect the cracks, but the resistance of the particles to crack propagation is small. The propagation stage is accordingly short, leading to the fracture of the composite

  3. Different magnetic behaviour of the Kondo compounds Al3Ce and Al11Ce3

    International Nuclear Information System (INIS)

    Neutron diffraction experiments on the Al3Ce and Al11Ce3 compounds have been performed on the multidetector of the I.L.L. high flux reactor. No magnetic structure has been detected on the Al3Ce compound down to 20 mK. This confirms the non magnetic ground state of Al3Ce. For Al11Ce3, two magnetic structures have been observed: a ferromagnetic one at 4.2 K and an antiferromagnetic one at 2 K. The antiferromagnetic structure, which corresponds to a propagation vector (0,0,1/3), implies a strong reduction of the magnetic moment of determined sites; this reflects the Kondo character of the compounds

  4. InAlGaAs/AlGaAs quantum wells: line widths, transition energies and segregation

    DEFF Research Database (Denmark)

    Jensen, Jacob Riis; Hvam, Jørn Märcher; Langbein, Wolfgang

    We investigate the optical properties of InAlCaAs/AlGaAs quantum wells pseudomorphically grown on GaAs using molecular beam epitaxy (MBE). The transition energies, measured with photoluminescence (PL), are modelled solving the Schrodinger equation, and taking into account segregation in the group...... III sublattice. From a fit to the transition energies, an empirical band gap relation for InAlGaAs is found, in the composition range relevant for growth on GaAs. The PL lines at low temperature (T = 10 K) are broadened due to random alloy fluctuations and an interface roughness of 1.1 monolayers....... Finally, the use of InAlGaAs/AlGaAs quantum wells for making strained T-shaped quantum wires is demonstrated. (C) 2000 Elsevier Science B.V. All rights reserved....

  5. Effect of stress on the Al composition evolution in AlGaN grown using metal organic vapor phase epitaxy

    Science.gov (United States)

    He, Chenguang; Qin, Zhixin; Xu, Fujun; Zhang, Lisheng; Wang, Jiaming; Hou, Mengjun; Zhang, Shan; Wang, Xinqiang; Ge, Weikun; Shen, Bo

    2016-05-01

    Two series of AlGaN samples with different stresses were designed to investigate the effect of stress on the Al composition. X-ray diffraction reciprocal space mapping (XRD RSM) demonstrated that the AlGaN epilayers with different stresses have large Al composition differences despite the same growth conditions. The largest Al composition difference reached up to 21.3%, which was also confirmed using secondary ion mass spectroscopy (SIMS). This result is attributed to a large stress discrepancy in the AlGaN epilayers. Finally, the dependences of the solid-phase Al composition on the gas-phase Al composition under different stresses were systematically analyzed.

  6. The constitution of alloys in the Al-rich corner of the Al-Si-Sm ternary system

    International Nuclear Information System (INIS)

    The constitution of alloys and the liquidus surface in the Al-rich corner of the Al-Si-Sm ternary system were determined by the examination of controlled heated and cooled specimens, as well as heat-treated specimens by means of optical and scanning electron microscopy, energy-dispersive X-ray spectroscopy, differential thermal analysis and X-ray diffraction. The Al-rich corner of the Al-Si-Sm ternary system comprises five regions of primary crystallisation (αAl, βSi, Al3Sm, Al2Si2Sm and AlSiSm) with following characteristic invariant reaction sequences: ternary eutectic reaction L → αAl + βSi + Al2Si2Sm, and two liquidus transition reactions, i. e., L + Al3Sm → αAl + AlSiSm, and L + AlSiSm → αAl + Al2Si2Sm. Along with the position of ternary eutectic and both interstitial points in the Al-rich corner of the Al-Si-Sm ternary system, the temperatures for each reaction were determined. (orig.)

  7. Microscopic phase field study of the antisite defect of Ni3 Al in binary Ni-Al alloys

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    The temporal evolution feature of a microscopic phase field model is utilized to study the antisite defects of L1 2-Ni 3 Al;this is quite different from other physicist’ interests.There are mainly two points in brief.Firstly,antisite defects Ni Al and Al Ni ,which are caused by the deviation from the stoichiometric Ni 3 Al,coexist in the Ni 3 Al phase.The surplus Ni atom in the Ni-rich side is prone to substitute Al thus producing the antisite defect Ni Al that maintains the stability of the L1 2 structure.In other case,the surplus Al atom in the Al-rich side is accommodated by a Ni sublattice consequently giving rise to antisite defect Al Ni .The calculated equilibrium occupancy probability of Ni Al is much higher than that of Al Ni .This point is generally in line with other theoretical and experimental works.Additionally,both Ni Al and Al Ni have a strong negative correlation to time step during the disorder-order transformation.Since the initial value of Ni Al and Al Ni on each site of the matrix is right at the concentration that we set,we can observe the decrease process of Ni Al and Al Ni from the initial disordered high anti-structure state to their respective equilibrium state,i.e.to the result of the ordering process further coarsening.

  8. The modulation structure induced changes in mechanical properties of TiAlN/Al2O3 multilayers

    International Nuclear Information System (INIS)

    TiAlN/Al2O3 multilayers which had different separate layer thickness of TiAlN or Al2O3 were synthesized by sputtering Ti3Al and Al2O3 targets with N2 and Ar gases. The influence of modulation periods and modulation ratios on structure and properties of TiAlN/Al2O3 multilayers was investigated using scanning electron microscopy, X-ray diffraction, X-ray Photoelectron Spectroscopy, surface profiler, and nanoindenter. Compared to TiAlN layer with only (2 0 0) preferred orientation, TiAlN/Al2O3 multilayers were crystallized with orientations in the TiAlN (1 1 1), TiAlN (2 2 2) and AlN (1 0 0). Besides, weak Al2O3 (0 2 2) orientation is observed, when modulation period is 8.9 nm. The maximum hardness about 36.6 GPa was obtained at modulation period of 10.4 nm and modulation ratio of 10:1. The hardness and the toughness of TiAlN/Al2O3 multilayers increase as individual TiAlN layer thickness increases

  9. Wear characteristics of Al-AlN composites produced in-situ by nitrogenation

    Science.gov (United States)

    Pradhan, S.; Jena, S. K.; Patnaik, S. C.; Swain, P. K.; Majhi, J.

    2015-02-01

    In the present scenario most of the parts used in automobile and aerospace industries are made of composites. Aluminium metal has a very high strength to weight ratio. Al-AlN metal matrix composites have excellent mechanical properties like good wear resistance, high hardness and high strength to weight ratio which are obtained from low density of aluminium and high hardness and wear resistance of AlN. Therefore, use of Al-AlN MMC leads to advantages in automobile industries as it reduces fuel consumption and gives better structural strength. The composites can be produced ex-situ by introducing AlN as reinforcement into the metal matrix and in- situ by nitrogenation process. In the present process Al-AlN composites were fabricated by treating molten aluminium with a mixture of CaO and NH4Cl and held at temperature range at 750-930°C and then cast into a metal mould. Addition of CaO to NH4Cl is found to have a more pronounced effect as a nitrogenation agent in comparison with NH4Cl in the molten aluminium in the temperature range of 700- 1000°C. Castings of aluminium and Al-AlN composites were prepared by mixing different ratios of aluminium and NH4Cl, at different casting temperatures and holding time. Wear resistance and hardness of the samples were determined, and microstructure studies were carried out. The composite formed using higher amount of NH4Cl had higher hardness and wear resistance.

  10. AlON的合成工艺%Synthesis technology of AlON

    Institute of Scientific and Technical Information of China (English)

    王习东; 李文超

    2001-01-01

    分析了合成AlON的各种方法。 用模式识别结 合神经网络对碳热还原氮化合成AlON工艺 进行了优化, 利用模式逆映射得到了理想的合成工艺参数。 对AlON体系进行了热力学初步 分析, 计算了温度为2  073  K时合成AlON的热力学参数状态图。 根据热力学参数状态图所确定的条件, 热压合成了AlON陶瓷。 对所合成的AlON试样进行了 X 射线衍射标定及部分物理性能的测定。 其密度为3.63  g/cm3, 约为其理论 密度的97.8%。%The synthesis technolog y of AlON ceramics was investigated. The program o f pattern recognition was used to optimize the parameters of AlON synthesi s process, and the proper parameters were obtained by inverse projection. The th ermodynamic properties of AlON were preliminary analyzed and estimate d, phase stability diagrams at 2  073  K were calculated. A lON ceramics was synthesized by hot-press sintering under the conditions given by phase stability diagram. The density of AlON is 3.63  g/cm3, about 97.8% of its th eoretic d ensity.

  11. Microstructure of Ni-Al powder and Ni-Al composite coatings prepared by twin-wire arc spraying

    Science.gov (United States)

    Wang, Ji-xiao; Wang, Gui-xian; Liu, Jing-shun; Zhang, Lun-yong; Wang, Wei; Li, Ze; Wang, Qi-xiang; Sun, Jian-fei

    2016-07-01

    Ni-Al powder and Ni-Al composite coatings were fabricated by twin-wire arc spraying (TWAS). The microstructures of Ni-5wt%Al powder and Ni-20wt%Al powder were characterized by scanning electronic microscopy (SEM) and energy dispersive spectroscopy (EDS). The results showed that the obtained particle size ranged from 5 to 50 μm. The morphology of the Ni-Al powder showed that molten particles were composed of Ni solid solution, NiAl, Ni3Al, Al2O3, and NiO. The Ni-Al phase and a small amount of Al2O3 particles changed the composition of the coating. The microstructures of the twin-wire-arc-sprayed Ni-Al composite coatings were characterized by SEM, EDS, X-ray diffraction (XRD), and transmission electron microscopy (TEM). The results showed that the main phase of the Ni-5wt%Al coating consisted of Ni solid solution and NiAl in addition to a small amount of Al2O3. The main phase of the Ni-20wt%Al coating mainly consisted of Ni solid solution, NiAl, and Ni3Al in addition to a small amount of Al and Al2O3, and NiAl and Ni3Al intermetallic compounds effectively further improved the final wear property of the coatings. TEM analysis indicated that fine spherical NiAl3 precipitates and a Ni-Al-O amorphous phase formed in the matrix of the Ni solid solution in the original state.

  12. Study of the 27Al(n,2,)26Al reaction via accelerator mass spectrometry

    International Nuclear Information System (INIS)

    The excitation function for the 27Al(n,2n)26Al reaction is expected to show a strongly non-linear behavior in the neutron-energy region around 14 MeV, the neutron energy in D-T plasmas; thus the production rate of 26Al (t1/2=7.2*105 a) in D-T fusion environments can in principle be used to measure the temperature of such plasmas. Existing measurements, however, are strongly discordant. Therefore, a new accurate measurement of the 27Al(n,2n)26Al cross sections in the near threshold region (En=13.5-14.8 MeV) was performed with the goal to achieve relative cross sections with the highest accuracy possible. In addition, the measurements were also designed to provide good absolute cross-section values, as absolute cross sections are important for radioactive waste predictions. Samples of Al metal were irradiated with neutrons in the energy range near threshold (Eth=13.55 MeV) at the Radiuminstitutes of both Vienna and St. Petersburg, and in Tokai-mura, Japan. In Tuebingen irradiations with neutrons of higher energies (17 and 19 MeV) were performed. The amount of 26Al produced during the irradiations was measured via accelerator mass spectrometry (AMS) at the Vienna Environmental Research Accelerator (VERA). This work represents the first 26Al measurements for this new facility. With this system, a background as low as 3*10-15 for 26Al/27Al isotope ratios was obtained, corresponding to a (n,2n) cross section of 0.04 mb. Utilizing AMS, cross sections with much higher precision and considerably closer to the threshold than in previous investigations could be measured. The prerequisite for its application as a temperature monitor, namely a very well known shape of the excitation function was met. A quantitative prediction of the sensitivity of this method for monitoring the temperature in a D-T fusion plasma was therefore possible. For thermal plasmas temperature changes in the order of 5 to 15 % should be detectable. An even higher sensitivity was found for non

  13. Management of respiratory symptoms in ALS.

    LENUS (Irish Health Repository)

    Hardiman, Orla

    2011-03-01

    Respiratory insufficiency is a frequent feature of ALS and is present in almost all cases at some stage of the illness. It is the commonest cause of death in ALS. FVC is used as important endpoint in many clinical trials, and in decision-making events for patients with ALS, although there are limitations to its predictive utility. There are multiple causes of respiratory muscle failure, all of which act to produce a progressive decline in pulmonary function. Diaphragmatic fatigue and weakness, coupled with respiratory muscle weakness, lead to reduced lung compliance and atelectasis. Increased secretions increase the risk of aspiration pneumonia, which further compromises respiratory function. Bulbar dysfunction can lead to nutritional deficiency, which in turn increases the fatigue of respiratory muscles. Early recognition of respiratory decline and symptomatic intervention, including non-invasive ventilation can significantly enhance both quality of life and life expectancy in ALS. Patients with respiratory failure should be advised to consider an advance directive to avoid emergency mechanical ventilation.

  14. Al/Cl2 molten salt battery

    Science.gov (United States)

    Giner, J.

    1972-01-01

    Molten salt battery has been developed with theoretical energy density of 5.2 j/kg (650 W-h/lb). Battery, which operates at 150 C, can be used in primary mode or as rechargeable battery. Battery has aluminum anode and chlorine cathode. Electrolyte is mixture of AlCl3, NaCl, and some alkali metal halide such as KCl.

  15. 75 FR 1420 - Alabama Disaster # AL-00025

    Science.gov (United States)

    2010-01-11

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Alabama Disaster AL-00025 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a notice of an Administrative declaration of a disaster for the State of Alabama dated...

  16. 76 FR 29810 - Alabama Disaster #AL-00037

    Science.gov (United States)

    2011-05-23

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Alabama Disaster AL-00037 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a Notice of the Presidential declaration of a major disaster for Public Assistance Only for...

  17. 75 FR 26813 - Alabama Disaster #AL-00029

    Science.gov (United States)

    2010-05-12

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Alabama Disaster AL-00029 AGENCY: Small Business Administration. ACTION: Notice. SUMMARY: This is a Notice of the Presidential declaration of a major disaster for the State of Alabama...

  18. 78 FR 4967 - Alabama Disaster #AL-00046

    Science.gov (United States)

    2013-01-23

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Alabama Disaster AL-00046 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a notice of an Administrative declaration of a disaster for the State of ALABAMA dated...

  19. 76 FR 62481 - Incapital LLC, et al.

    Science.gov (United States)

    2011-10-07

    ... From the Federal Register Online via the Government Publishing Office SECURITIES AND EXCHANGE COMMISSION Incapital LLC, et al.; Notice of Application September 30, 2011. AGENCY: Securities and Exchange Commission (``Commission''). ACTION: Notice of application for an order under section 12(d)(1)(J) of...

  20. 78 FR 22361 - Alabama Disaster #AL-00049

    Science.gov (United States)

    2013-04-15

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Alabama Disaster AL-00049 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a notice of an Administrative declaration of a disaster for the State of Alabama dated...

  1. 78 FR 26100 - Alabama Disaster #AL-00050

    Science.gov (United States)

    2013-05-03

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Alabama Disaster AL-00050 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a notice of an Administrative declaration of a disaster for the State of Alabama dated...

  2. 75 FR 3895 - Yale University, et al.;

    Science.gov (United States)

    2010-01-25

    ... notice at 74 FR 67851, December 21, 2009. Docket Number: 09-065. Applicant: U.S. Department of Homeland..., Quanta 200 FEG. Manufacturer: FEI Company, Czech Republic. Intended Use: See notice at 74 FR 67851... International Trade Administration Yale University, et al.; Notice of Consolidated Decision on Applications...

  3. 77 FR 7227 - Alabama Disaster #AL-00040

    Science.gov (United States)

    2012-02-10

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Alabama Disaster AL-00040 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a Notice of the Presidential declaration of a major disaster for the State of Alabama...

  4. 75 FR 474 - Alabama Disaster #AL-00026

    Science.gov (United States)

    2010-01-05

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Alabama Disaster AL-00026 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a Notice of the Presidential declaration of a major disaster for Public Assistance Only for...

  5. 76 FR 27141 - Alabama Disaster # AL-00036

    Science.gov (United States)

    2011-05-10

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Alabama Disaster AL-00036 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a Notice of the Presidential declaration of a major disaster for the State of Alabama...

  6. 77 FR 60003 - Alabama Disaster #AL-00044

    Science.gov (United States)

    2012-10-01

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Alabama Disaster AL-00044 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a Notice of the Presidential declaration of a major disaster for Public Assistance Only for...

  7. 75 FR 26814 - Alabama Disaster #AL-00031

    Science.gov (United States)

    2010-05-12

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Alabama Disaster AL-00031 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a Notice of the Presidential declaration of a major disaster for Public Assistance Only for...

  8. Casting of particulate Al-base composites

    Energy Technology Data Exchange (ETDEWEB)

    Moustafa, S.F. [CMRDI, Cairo (Egypt)

    1997-03-01

    A molten Al-4 wt.% Cu as well as a Al-13 wt.% Si alloy have been mixed mechanically with particulate of SiC, Al{sub 2}O{sub 3}, or graphite. After the completion of mixing, each mixture was poured into a permanent mould to solidify. To overcome the problem of non-wettability that exists between the investigated particulate and the molten aluminum alloys the particulate was chemically treated by impregnation in a solution containing Na{sup +} ions. The loading of SiC or Al{sub 2}O{sub 3} particulate in the produced composites can be as high as 40 wt.%, and for graphite particles it can be 20 wt.%. The mixing time required to introduce and distribute the investigated particles into the molten matrix was as low as five minutes to recluce chemical reactions at the interfaces between them. Processing details and parameters controlling this technique are described. Metallographic examinations as well as tensile tests were carried out to characterize the microstructure, the distribution of the particles and the strength of these composites. The results display that the composites made by this technique have good microstructure and tensile properties. (orig.)

  9. Synthesis of Ti-Al porous perform

    Directory of Open Access Journals (Sweden)

    K. Naplocha

    2008-02-01

    Full Text Available Purpose: Article describes production method of intermetallic porous perform for reinforcing of composite materials. Usefulness of the high temperature self-propagating synthesis (SHS, with appropriate modification, to produce perform for production of composite was evaluated.Design/methodology/approach: Mixture of aluminum and titanium powder was cold isostatically pressed (CIPed and produced cylindrical pill was ignited in microwave field. Obtained structure usually have open porosity what enables for pressure infiltration with molten metal. The investigations of the structure of preforms on the scanning electron microscope (SEM were made.Findings: The produced performs in most cases reveal open porosity, uniform morphology and are suitable for infiltration process. After reaction Al-Ti compounds form partly globular structure with microhardness much higher than substratesResearch limitations/implications: In the actual stages of this work proposed method can be used for manufacturing of porous performs, which mainly contain Al3Ti. During reaction, mixture compacts with the molar ratio of Al/Ti=1 were transformed into inhomogeneous structure.Practical implications: Obtained perform can be widely used as the reinforcement to produce hybrid composite materials by the infiltration method. Aluminum casting alloys can be locally reinforced to improve hardness and resistance to oxidization at high temperature.Originality/value: Article is valuable for persons engaged in production of casting composite materials reinforced with porous perform. Proposed method allows to incorporate hard structures from Al-Ti compounds into aluminum casting.

  10. Cathodic electrochemiluminescence at double barrier Al/Al{sub 2}O{sub 3}/Al/Al{sub 2}O{sub 3} tunnel emission electrodes

    Energy Technology Data Exchange (ETDEWEB)

    Hakansson, Markus [Laboratory of Analytical and Inorganic Chemistry, Helsinki University of Technology, P.O. Box 6100, FIN-02015 HUT (Finland); Jiang, Qinghong [Laboratory of Analytical and Inorganic Chemistry, Helsinki University of Technology, P.O. Box 6100, FIN-02015 HUT (Finland); Suomi, Johanna [Laboratory of Analytical and Inorganic Chemistry, Helsinki University of Technology, P.O. Box 6100, FIN-02015 HUT (Finland); Loikas, Kari [Workshop, Department of Chemistry, University of Turku, FIN-20014 (Finland); Nauma, Mauri [Workshop, Department of Chemistry, University of Turku, FIN-20014 (Finland); Ala-Kleme, Timo [Laboratory of Analytical Chemistry, Department of Chemistry, University of Turku, FIN-20014 (Finland); Kankare, Jouko [Laboratory of Analytical Chemistry, Department of Chemistry, University of Turku, FIN-20014 (Finland); Juhala, Pentti [Laboratory of Analytical Chemistry, Department of Chemistry, University of Turku, FIN-20014 (Finland); Eskola, Jarkko U. [Labmaster Oy, P.O. Box 71, FIN-20521 Turku (Finland); Kulmala, Sakari [Laboratory of Analytical and Inorganic Chemistry, Helsinki University of Technology, P.O. Box 6100, FIN-02015 HUT (Finland)

    2006-01-25

    Double insulating barrier tunnel emission electrodes were fabricated by adding a new pure aluminum layer upon oxidized aluminum electrodes by vacuum evaporation and thermally oxidizing the new aluminum layer in air at room temperature. Resulting Al/Al{sub 2}O{sub 3}/Al/Al{sub 2}O{sub 3} electrodes allow the use of various aluminum alloys in the electrode body necessary for hardness or shaping ability of the electrode while obtaining the luminescence properties of pure aluminum oxide. During electrical excitation of luminescent labels by cathodic hot electron injection into aqueous electrolyte solution, the background noise is mainly based on high-field-induced solid-state electroluminescence and F-center luminescence of the outer aluminum oxide film. The more defect states and/or impurity centers the outer oxide film contains, the higher is the background emission intensity. The present electrode fabrication method provides a considerable improvement in signal-to-noise ratio for time-resolved electrochemiluminescence (TR-ECL) measurements when the original native oxide film of the electrode body contains luminescence centers displaying long-lived luminescence. The excellent performance of the present electrodes is demonstrated by extremely low-level detection of Tb(III) chelates, luminol, Pt(II) coproporphyrin and Tb(III) labels in an immunometric immunoassay by time-resolved electrochemiluminescence.

  11. CALCULUL CINETOSTATIC AL MECANISMELOR PLANETARE CILINDRICE

    Directory of Open Access Journals (Sweden)

    Păun ANTONESCU

    2012-05-01

    Full Text Available În lucrare se prezintă o metodă analitică pentru calculul cinetostatic al mecanismului planetarmonomobil cu două roţi dinţate centrale. Se consideră mai întâi cazul general al schemelor cinematice cu douăroţi dinţate solidare tip satelit, în două variante practice (multiplicator şi reductor de turaţie. Este menţionatcazul particular al mecanismelor planetare cu o singură roată satelit cu angrenare dublă (exterioară şiinterioară. Pe baza modelului de analiză cinetostatică a mecanismului planetar monomobil cu două roţi dinţatecentrale, în finalul lucrării se abordează o problemă practică de calcul cinetostatic al unui mecanism planetarcilindric simplu folosit la capul de frezat pentru prelucrarea roţilor dinţate cilindrice cu dinţi curbi înhipocicloidă.

  12. Cryptanalysis on Cheng et al. protocol

    Science.gov (United States)

    Thakur, Tejeshwari

    2016-06-01

    Deployment of new node in any wireless sensor network is a sensitive task. This is the reason why, an Access Control Protocol is required in WSN. In this paper, we demonstrate that Access Control Protocol proposed by Cheng et al.[1] for Wireless Sensor Network is insecure. The reason is that this protocol fails to resist the active attack.

  13. Del desarrollo rural al desarrollo territorial

    OpenAIRE

    Moyano Estrada, Eduardo

    2010-01-01

    5 páginas.-- Trabajo presentado al Seminario Ruraland celebrado en Antequera (Málaga) el 26 de mayo de 2010.-- Presentado como ponencia a la Jornada de debate "El desarrollo rural en la U.E. despues de 2013" celebrado en Aracena (Huelva) el 10 de junio de 2010 (adjuntado Pdf).

  14. Electron impact exctation of Al X

    Science.gov (United States)

    Aggarwal, Kanti; Keenan, Francis

    2013-05-01

    Emission lines of Al ions, including Al X, are important for the modeling and diagnostics of lasing, fusion and astrophysical plasmas, for which atomic data are required for a variety of parameters, such as energy levels, radiative rates (A- values), and excitation rates or equivalently the effective collision strengths (Υ), which are obtained from the electron impact collision strengths (Ω). Experimentally, energy levels are available for Al X on the NIST website, but there is paucity for accurate collisional atomic data. Therefore, here we report a complete set of results (namely energy levels, radiative rates, and effective collision strengths) for all transitions among the lowest 98 levels of Al X. These levels belong to the (1s2) 2s2, 2s2p, 2p2, 2s3 l, 2p3 l, 2s4 l, and 2p4 l configurations. Finally, we also report the A- values for four types of transitions, namely electric dipole (E1), electric quadrupole (E2), magnetic dipole (M1), and magnetic quadrupole (M2), because these are also required for plasma modeling. For our calculations of wavefunctions, we have adopted the fully relativistic GRASP code, and for the calculations of Ω, the Dirac atomic R-matrix code (DARC) of PH Norrington and IP Grant. Additionally, parallel ca

  15. The Science of al-Biruni

    OpenAIRE

    Sparavigna, Amelia Carolina

    2013-01-01

    Al-Biruni (973-1048) was one of the greatest scientists of all times. He was an astronomer, mathematician and philosopher, and studied physics and natural sciences. In this paper, we will discuss some of his experimental methods and some instruments he used.

  16. Thermoluminescence of LaAlO3

    International Nuclear Information System (INIS)

    In this paper the thermoluminescent properties of doped lanthanum aluminate (LaAlO3) with dysprosium ion (Dy) were studied. The thermoluminescence characteristics in the samples were obtained using an ultraviolet radiation of 220 nm. The LaAlO3:Dy samples were prepared by the modified Pechini method (Spray Dryer). The structural and morphological characterization was obtained by X-ray diffraction (XRD) and scanning electron microscopy (Sem) techniques respectively. The size particle composing the agglomerate was determined by Sem, agglomerated particles composed size of 2μm were observed. The thermoluminescence response of LaAlO3:Dy was compared with that obtained with the undoped sample. Thermoluminescence brightness curves of LaAlO3:Dy showed a peak centered at 185 grades C. Sensitivity of doped sample was greater, about 100 times compared with the undoped sample. Thermoluminescence response in function of the wavelength showed a maximum at 220 nm. Also the fading in thermoluminescence response was studied. (Author)

  17. Management of respiratory symptoms in ALS.

    LENUS (Irish Health Repository)

    Hardiman, Orla

    2012-02-01

    Respiratory insufficiency is a frequent feature of ALS and is present in almost all cases at some stage of the illness. It is the commonest cause of death in ALS. FVC is used as important endpoint in many clinical trials, and in decision-making events for patients with ALS, although there are limitations to its predictive utility. There are multiple causes of respiratory muscle failure, all of which act to produce a progressive decline in pulmonary function. Diaphragmatic fatigue and weakness, coupled with respiratory muscle weakness, lead to reduced lung compliance and atelectasis. Increased secretions increase the risk of aspiration pneumonia, which further compromises respiratory function. Bulbar dysfunction can lead to nutritional deficiency, which in turn increases the fatigue of respiratory muscles. Early recognition of respiratory decline and symptomatic intervention, including non-invasive ventilation can significantly enhance both quality of life and life expectancy in ALS. Patients with respiratory failure should be advised to consider an advance directive to avoid emergency mechanical ventilation.

  18. Al-Ghazali on Moral Education

    Science.gov (United States)

    Alavi, Hamid Reza

    2007-01-01

    Al-Ghazali (1058-1111 CE) is probably the most influential scholar, philosopher, theologian, legal expert, religious reformer and mystic in the history of Islam. Although he wrote extensively about education, and particularly about moral education, this writing is scattered through a number of different works and has received less scholarly…

  19. Aluminum matrix texture in Al-Al3Ti functionally graded materials analyzed by electron back-scattering diffraction

    Science.gov (United States)

    Watanabe, Yoshimi; Sequeira, Paulo D.; Sato, Hisashi; Inamura, Tomonari; Hosoda, Hideki

    2016-01-01

    Al matrix functionally graded materials (FGMs) with oriented Al3Ti platelets were fabricated by a centrifugal solid-particle method. The applied centrifugal forces were 30, 60, and 120G (units of gravity). The orientation and volume fraction gradients of the Al3Ti platelets within the samples were measured. Since a good lattice correspondence was reported for the close-packed directions and the close-packed planes between Al and Al3Ti, the Al matrix in the Al-Al3Ti FGMs fabricated by the centrifugal solid-particle method should have some texture. Al matrix texture was, therefore, analyzed by electron back-scattering diffraction (EBSD). Analysis of the resulting pole figures indicates a preferred orientation along the (200) plane for the Al matrix crystals. Furthermore, increasing the applied centrifugal force enhances the orientation effect. A correlation appears to exist between platelet orientation and the preferred texture of the Al matrix.

  20. Investigation Of Water Assisted Phase Transformation Process From AlPO4-5 to AlPO4-tridymite

    Energy Technology Data Exchange (ETDEWEB)

    Xu, Suochang; Zhao, Zhenchao; Hu, Mary Y.; Han, Xiuwen; Hu, Jian Z.; Bao, Xinhe

    2016-03-15

    Water assisted phase transformation process from crystalized AlPO4-5 to AlPO4-tridymite was studied by the combination of X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and in situ multinuclear MAS NMR. It is found that water first activates the residue amorphous aluminophosphate in crystalized AlPO4-5 sample through hydrolysis and condensation reactions. Then the activated aluminophosphate species reassemble into AlPO4-tridymite crystalline. Meanwhile, AlPO4-5 transforms into orthorhombic phase during heating process. With further crystallization of AlPO4-tridymite, the amorphous phase is gradually consumed, and mass transportation between AlPO4-5 and AlPO4-tridymite is established through gradually amorphization of AlPO4-5. Finally, most of the AlPO4-5 transforms into the thermodynamically stable dense phase AlPO4-tridymite.