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Sample records for doble precipitacion ii

  1. Adsorption indicators in double precipitation volumetric. II. Use of radioactive indicators; Indicadores de adsorcion en volumetrias de doble precipitacion II. Empleo de indicadores radiactivos

    Energy Technology Data Exchange (ETDEWEB)

    Carnicero Tejerina, M I

    1961-07-01

    {sup 1}31I-fluorescein and {sup 1}10Ag-silver sulphate have been used in order to check the role of adsorption indicators in the volumetric analysis of double precipitation reactions. It has been shown by using isotopes that adsorption of fluorescein on silver halides depends on the foreign cations present in the solution. (Author) 8 refs.

  2. Preso y drogodependiente: doble estigma

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    Rafael Clua García

    2010-12-01

    Full Text Available Fornons Fontdevila, David (2009. Prisión y drogas: doble condena. Barcelona: deParís. David Fornons Fontdevila, tras varios años de trabajo en diferentes ámbitos del Centro Penitenciario de Hombres de Barcelona, La Modelo, ha realizado esta etnografía sobre las personas drogodependientes privadas de libertad. Ha conseguido desnudar su situación, abriéndonos las puertas de una institución de la que poco se habla y mucho menos cuando se asocia a los consumidores de drogas.

  3. Galaxias australes con núcleo doble

    Science.gov (United States)

    Gimeno, G.; Díaz, R.; Carranza, G.

    Se estudia una muestra de galaxias australes con núcleo doble a partir de una búsqueda extensiva en la literatura. Se analizan las características morfológicas, fotométricas y espectroscópicas de la muestra. Para algunas galaxias se han realizado observaciones con el espectrógrafo multifunción (EMF) de la Estación Astrofísica de Bosque Alegre a partir de las cuales se determinaron parámetros cinemáticos.

  4. Agresividad de las precipitaciones en la subcuenca del río San Marcos, Puebla, México

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    Rosalía Castelan Vega

    2013-07-01

    Full Text Available La falta de información de la erosividad de la lluvia en la Sierra Norte de Puebla, ha impedido una evaluación objetiva de su contribución al proceso de erosión. El presente trabajo se planteó como objetivo determinar el potencial erosivo y la variabilidad temporal de las precipitaciones en la Subcuenca del río San Marcos, a partir de diferentes índices que miden el grado de agresividad de las precipitaciones, así como establecer relaciones entre los mismos. Se utilizaron los registros pluviométricos de diez años de siete estaciones meteorológicas. Se calcularon los Índices de Fournier Anual (IFA, Modificado de Fournier (IMF, Concentración de Precipitaciones (ICP y Erosividad Total (IET. El estudio permite concluir que los riesgos de erosión son mayores en la zona de influencia de las estaciones climáticas de Xicotepec, Venustiano Carranza y Progreso, ubicadas en altitudes comprendidas entre 1279 y 886 msnm. Las precipitaciones según el ICP se concentran de manera estacional moderada de julio a octubre, y el IET evidencia que las precipitaciones presentan alta potencialidad erosiva. Los resultados fundamentarían el desarrollo de una estrategia agroecológica de conservación de suelos en función de la agresividad climática que presenta la zona de estudio

  5. El cambio climático y sus evidenciasen las precipitaciones

    OpenAIRE

    Brown Manrique, Oscar; Gallardo Ballat, Yurisbel; Correa Santana, Amaury; Barrios García, Sergio

    2015-01-01

    La investigación se desarrolló en la localidad de Falla, provincia Ciego de Ávila. Se analizó una serie de 30 años de precipitaciones y número de días con lluvia desde 1977 al 2006. Se aplicaron métodos de análisis de la serie temporal como porcentaje medio, promedios móviles y suavización exponencial. Se comprobó que la función Normal fue la más apropiada para ajustar los datos experimentales y se construyó el climograma de la localidad. Se determinaron las evidencias de cambio climático med...

  6. Nanocomposites transparentes multifuncionales de hidróxido doble laminares

    OpenAIRE

    Fernández Vilaber, Antonio

    2017-01-01

    Este trabajo trata sobre obtener una serie de materiales nanocompuestos en forma de película para usarlos como plásticos de invernadero. Para ello se sintetizarán hidróxidos dobles laminares modificados con un agente blanqueante óptico que mejorará las propiedades ópticas del material Escuela Técnica Superior de Ingeniería Industrial Universidad Politécnica de Cartagena

  7. Influencia del evento el niño-oscilacion del sur sobre las precipitaciones en cinco ciudades del litoral ecuatoriano

    OpenAIRE

    Espol; Rodriguez Aguilar, Jose Antonio; Luna Rodriguez, Javier Alejandro

    2017-01-01

    La investigación se realizó con el objetivo de evaluar la influencia del fenómeno enos, caracterizado por los índices oni e icen, sobre las precipitaciones ocurridas en el período de 1975-2016 en ciudades del litoral ecuatoriano, con la finalidad de que contribuya al diseño de lineamientos para mejorar la respuesta de la población ante la posible presencia del evento Guayaquil MAGISTER EN CAMBIO CLIMATICO

  8. Evaluación de vacas de doble propósito de genotipos Holstein x Cebú en sistemas de pastoreo arborizado: II. Bíparas Evaluation of double purpose Holstein x Zebu cows in grazing systems with trees: II. Biparous

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    L Simón

    2010-06-01

    Full Text Available Con el objetivo de evaluar el comportamiento productivo y reproductivo de vacas bíparas de doble propósito de los cruzamientos Holstein x Cebú, se utilizaron 75 vacas en un diseño totalmente aleatorizado, 25 por grupo de los genotipos Siboney (5/8 Holstein x 3/8 Cebú, Mambí (3/4 H x ¼ C y Siboney mestizo (5/8 H x 3/8 C, las cuales integraron un rebaño común con acceso al mismo manejo y alimentación, en una vaquería de producción de la granja Supervaca de la Empresa Pecuaria Genética de Matanzas. La carga fue de 1,6 UGM/ha y rotaron en 28 cuartones. Mensualmente se midió la disponibilidad de pastos y la oferta diaria de los forrajes y los suplementos. Se apreció la condición corporal al inicio y al final de cada estación, la producción de leche por vaca se midió quincenalmente, y se determinó la duración y producción por lactancia y los indicadores de reproducción. La mejor condición corporal (3,97 favoreció al Siboney mestizo (PIn order to evaluate the productive and reproductive performance of biparous double-purpose Holstein x Zebu cows, 75 cows were used in a completely randomized design, 25 per group, from genotypes Siboney (5/8 Holstein x 3/8 Zebu, Mambí (3/4 H x ¼ Z and crossbred Siboney (5/8 H x 3/8 Z, which integrated a common herd with access to the same management and feeding, in a production dairy unit of the Supervaca farm, Genetic Livestock Production Firm of Matanzas. The stocking rate was 1,6 animals/ha and they rotated in 28 paddocks. Pasture availability and daily offer of forages and supplements were monthly measured. The body condition was estimated at the beginning and end of each season, milk production per cow was fortnightly measured, and the duration and production per lactation and the reproduction indicators were determined. The best body condition (3,97 favored crossbred Siboney (P<0,01; while no significant differences were found in the duration and production of milk per lactation. Likewise

  9. Análisis de frecuencia regional de las precipitaciones máximas diarias en la región hidrográfica del Titicaca

    OpenAIRE

    LUJANO LAURA, EFRAIN; Servicio Nacional de Hidrologia; FELIPE OBANDO, OSCAR G; Servicio Nacional de Hidrologia

    2015-01-01

    La presente investigación se realizó en la región hidrográfica del Titicaca (lado Peruano), ubicado entre los Departamentos de Puno y Tacna, teniendo como objetivo desarrollar modelos regionales de precipitaciones máximas diarias, aplicado al problema de la estimación de precipitaciones en zonas sin información, cuyos resultados serán empleados en proyectos que requieren este tipo de información, generalmente para el diseño de obras hidráulicas. La información meteorológica, corresponde al Se...

  10. Caracterización de precipitaciones diarias en el municipio de Ciego de Ávila, Cuba

    OpenAIRE

    Brown Manrique, Oscar; Díaz Ruiz, Reinier; Gallardo Ballat, Yurisbel; Valero Freyre, Jorge

    2017-01-01

    La investigación analizó una serie de 30 años de precipitaciones diarias del municipio Ciego de Ávila en el periodo 1983-2012. Se consideraron 43 800 datos correspondientes a los pluviómetros CA-87; CA-102; CA-722 y CA-894. Los resultados demostraron que la pluviometría anual es de 1243,5 mm y los mayores valores se presentan en junio y septiembre con 228,9 mm y 221,3 mm respectivamente. El tipo de lluvia predominante es la inferior a 50 mm en 24 horas las cuales suceden en 86 días en el año....

  11. Rejuvenecimiento facial en "doble sigma" "Double ogee" facial rejuvenation

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    O. M. Ramírez

    2007-03-01

    Full Text Available Las técnicas subperiósticas descritas por Tessier revolucionaron el tratamiento del envejecimiento facial, recomendando esta vía para tratar los signos tempranos del envejecimiento en pacientes jóvenes y de mediana edad. Psillakis refinó la técnica y Ramírez describió un método más seguro y eficaz de lifting subperióstico, demostrando que la técnica subperióstica de rejuveneciento facial se puede aplicar en el amplio espectro del envejecimiento facial. La introducción del endoscopio en el tratamiento del envejecimiento facial ha abierto una nueva era en la Cirugía Estética. Hoy la disección subperióstica asistida endocópicamente del tercio superior, medio e inferior de la cara, proporciona un medio eficaz para la reposición de los tejidos blandos, con posibilidad de aumento del esqueleto óseo craneofacial, menor edema facial postoperatorio, mínima lesión de las ramas del nervio facial y mejor tratamiento de las mejillas. Este abordaje, desarrollado y refinado durante la última década, se conoce como "Ritidectomía en Doble Sigma". El Arco Veneciano en doble sigma, bien conocido en Arquitectura desde la antigüedad, se caracteriza por ser un trazo armónico de curva convexa y a continuación curva cóncava. Cuando se observa una cara joven, desde un ángulo oblicuo, presenta una distribución característica de los tejidos, previamente descrita para el tercio medio como un arco ojival arquitectónico o una curva en forma de "S". Sin embargo, en un examen más detallado de la cara joven, en la vista de tres cuartos, el perfil completo revela una "arco ojival doble" o una sigma "S" doble. Para ver este recíproco y multicurvilíneo trazo de la belleza, debemos ver la cara en posición oblicua y así poder ver ambos cantos mediales. En esta posición, la cara joven presenta una convexidad característica de la cola de la ceja que confluye en la concavidad de la pared orbitaria lateral formando así el primer arco (superior

  12. Precipitaciones extremas y sus implicaciones en procesos de remoción en masa en la planificación urbana de Tampico, México

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    Diego Sánchez González

    2011-01-01

    Full Text Available La investigación analiza la peligrosidad y exposición de las precipitaciones extremas y sus implicaciones en la evaluación y zonificación de los procesos de remoción en masa en la ciudad de Tampico, localizada en la cuenca baja del río Pánuco, México. La metodología emplea un Sistema de Información Geográfica para la agregación de los datos hidrometeorológicos y geomorfológicos, posibilitando el análisis de las variaciones espacio-temporales de las precipitaciones extremas, y sus implicaciones en la evaluación y zonificación de los procesos de remoción en masa, necesarios para la planificación urbana de Tampico. Los resultados indican que la distribución de las precipitaciones extremas favorece la alta agresividad climática, determinante de los procesos de erosión del suelo y de los peligros geomorfológicos, como desprendimientos y flujos de detritos, en el área de estudio. Asimismo, en los próximos años se prevé el aumento de los procesos de remoción en masa asociados a factores ambientales, por un incremento de la ocurrencia e intensidad de las precipitaciones extremas, y a factores antrópicos, por el crecimiento de la población y viviendas expuestas a áreas inestables.

  13. La doble historia de El convidado de papel

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    Ceballos Viro, Álvaro

    2011-12-01

    Full Text Available This article sets out to question the textual history of El convidado de papel, a novel by Benjamín Jarnés. The differences between the two firsts editions of this novel, published in 1928 and 1935, are more complex than has hitherto been assumed. They also allow to reconstruct a different plot from the one that can be found in literary histories. In its original version, El convidado de papel was not only a peculiar Bildungsroman, but also a typical doppelgänger narrative. Therefore, it contained a dense web of intertextual references which Jarnés deliberately eliminated in the second edition of the novel. These intertextual references stimulate the search for new sources as well as the re-evaluation of the precise mode of influence attributed to familiar sources.La presente contribución comienza problematizando la historia textual de El convidado de papel, de Benjamín Jarnés. Las diferencias entre las dos primeras ediciones, que datan de 1928 y 1935, no sólo son más complejas de lo que hasta ahora se había creído, sino que además permiten reconstruir un argumento diferente de aquél tácitamente consensuado por la historiografía literaria. Sin dejar de ser una peculiar novela de formación, El convidado de papel era en su versión original una novela de doble en toda regla, lo que la abría a unas relaciones intertextuales que Jarnés eliminó conscientemente en la segunda edición. Tales relaciones permiten, por un lado, sugerir nuevas influencias (o modos de influencia en la narrativa jarnesiana y, por otro lado, profundizar en las deudas contraídas con autores cuyo ascendiente ya era conocido por la crítica.

  14. Simulación y modelado de transistores MOS de doble puerta

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    Cartujo Cassinello, Pedro

    2013-01-01

    En este trabajo se hace un estudio del transistor MOS de doble puerta analizando las posibles ventajas de esta nueva estructura frene al transistor convencional y el transistor MOS SOI de puerta simple. Para ello se ha analizado una sección transversal de un transistor MOS de doble puerta de canal N, con el fin de examinar detalladamente las peculiaridades de la distribución de electrones con una amplia variedad de valores de todos los parámentros tecnológicos y condiciones de operación, y se...

  15. Simulaci??n y modelado de transistores MOS de doble puerta

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    Cartujo Cassinello, Pedro

    2000-01-01

    En este trabajo se hace un estudio del transistor MOS de doble puerta analizando las posibles ventajas de esta nueva estructura frene al transistor convencional y el transistor MOS SOI de puerta simple. Para ello se ha analizado una secci??n transversal de un transistor MOS de doble puerta de canal N, con el fin de examinar detalladamente las peculiaridades de la distribuci??n de electrones con una amplia variedad de valores de todos los par??mentros tecnol??gicos y condiciones de operaci??n,...

  16. Evidencias de grandes precipitaciones en diversas etapas constructivas de la Huaca de la Luna, costa norte del Perú

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    1993-01-01

    Full Text Available ÉVIDENCES DE GRANDES PRECIPITATIONS AU COURS DE DIFFERENTES ETAPES DE LA CONSTRUCTION DE LA HUACA DE LA LUNA, COTE NORD DU PEROU. Les recherches en cours à la Huaca de La Luna - Vallée de Moche ont permis d’établir une séquence de quatre événements constructifs majeurs, ainsi que diverses modifications à l’intérieur de chaque événement. Des sédiments contenant des fines couches de peinture blanche ont été trouvés sur les sols de ces divers événements constructifs et sont interprétés comme le résultat des pluies intenses. Celles-ci ont été produites par le Phénomène du El Niño. Ces nouvelles données permettront de réévaluer les interprétations historiques du site. Las investigaciones que venimos realizando en la Huaca de La Luna - Valle de Moche, han permitido establecer cuatro etapas constructivas, así como diversas modificaciones al interior de cada etapa. Capas de sedimentos conteniendo lentes de pintura, que han sido halladas sobre los pisos arquitectónicos, las interpretamos como el resultado de fuertes lluvias que han lavado el enlucido y la pintura de las paredes. Grandes precipitaciones en la costa norte sólo se dan cuando aparece el Fenómeno de El Niño. Estos nuevos datos permitirán reevaluar las interpretaciones históricas del sitio. EVIDENCES OF HEAVY RAINFALL IN SEVERAL BUILDING STAGES OF HUACA DE LA LUNA, COAST OF NORTHERN PERU. On-going research studies on the Huaca de La Luna (valle of Moche archaeological site lead us to distinguish four episodes of building, as well as several modification stages within each episode. Layers of sediment with remnants of paint that were found on successive floors of this site, are interpreted as evidence of intense rainfall events which were able to wash off the walls. This kind of heavy precipitation seems to be closely related to the El Niño phenomenon. These observations should help to re-calculate former historical interpretations o the site.

  17. Doble Vínculo: "Tejer de la Arquitectura y el Arte; en el entorno del Arte Conceptual"

    OpenAIRE

    Muñoz Pardo, María Jesús

    2008-01-01

    Desde los comienzos de mi actividad investigadora he estado interesada en la bipolaridad comunicativa _Doble vínculo entre la Arquitectura y el Arte, así como en un pensamiento dialógico en el que teoría y práctica sean indisociables. ¿Qué acciones pueden forzar las coordenadas de un Pensamiento Crítico de la Arquitectura (en estos momentos)? Dice B. Russell: >. Esta frase que he elegido para iniciar mi presentación hace referencia a la doble condición del pensamiento, a ese doble v...

  18. Experiencias de la Corporación Universitaria Adventista en la doble titulación académica

    OpenAIRE

    Iglesias, Enoc; Corporación Adventista

    2015-01-01

    En el presente articulo no derivado de investigaciones, se muestran varios aspectos de las experiencias que ha tenido la Corporación Universitaria Adventista en la doble titulación, tema de gran actualidad.

  19. Estudio de Aplicación del Análisis Regional de Frecuencias Basado en L-Momentos al Caso de las Precipitaciones Anuales en la Provincia de Camagüey, Cuba

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    Raidel Báez Prieto

    Full Text Available Resumen En esta investigación se presenta un caso de estudio de aplicación del procedimiento conocido como Análisis Regional de Frecuencias basado en L-momentos, al estudio de las precipitaciones anuales en la provincia de Camagüey, Cuba. Se ha adoptado la mencionada metodología por ser un procedimiento estadísticamente robusto para compensar la carencia de registros históricos de larga data por su abundancia en el área de estudio. La aplicación de la metodología permitió la estimación de las probabilidades y períodos de retornos de las precipitaciones anuales (cuantil de interés así como la obtención de mapas de frecuencia.

  20. Hidronefrosis prenatal en doble sistema excretor Prenatal hydronephrosis in double excretory system

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    Sandalio Durán Álvarez

    2007-12-01

    Full Text Available Con la introducción del ultrasonido materno-fetal en el seguimiento sistemático del embarazo normal se detectan anomalías congénitas en el 1 % de los fetos, el 20 % de las cuales corresponden al tracto urinario. Se realizó el estudio de recién nacidos y lactantes con hidronefrosis prenatal, cuyos ultrasonidos materno-fetales demostraron la presencia de un doble sistema excretor. Para este propósito todos los recién nacidos y lactantes con hidronefrosis detectada prenatalmente, y doble sistema excretor diagnosticado antes o después del nacimiento, fueron seguidos mediante ultrasonografía renal evolutiva, uretrocistografía miccional, gammagrafía estática o dinámica y, en algunos casos, mediante urograma excretor. Hallamos doble sistema excretor en 7 de los 182 pacientes (3,8 % con anormalidades del tracto urinario diagnosticadas antes del nacimiento. El diagnóstico fue prenatal solo en uno de los fetos (31 semanas de embarazo. La dilatación hidronefrótica fue ligera en dos fetos y grave en cinco. La hidronefrosis obedeció a diferentes causas. Se realizó nefrectomía polar superior en los casos de ectopia ureteral y de uréter superior obstruido, reimplantación en un ureterocele, y en otro se comprobó la ruptura espontánea mediante endoscopia. Los restantes pacientes se trataron sintomáticamente. La hidronefrosis detectada antes del nacimiento mediante ultrasonografía materno-fetal puede estar asociada a un doble sistema excretor. La dilatación hidronefrótica asociada a un doble sistema puede deberse a diferentes causas, y es necesario estudiar cuidadosa y sistemáticamente a estos niños y tratarlos adecuadamente, porque cada uno puede necesitar una conducta diferente.With the introduction of the maternofetal ultrasound in the systematic follow-up of normal pregnancy, congenital anomalies are detected in 1 % of the fetuses, 20 % of which correspond to the urinary tract. The newborns and infants with prenatal

  1. El cultivo de alfalfa utilizando agua de perforación, agua residual urbana y precipitaciones The cultivation of alfalfa using artesian well water, urban wastewater and rainfall

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    José O. Plevich

    2012-12-01

    Full Text Available El objetivo de este trabajo fue analizar la producción de biomasa aérea, la eficiencia del uso de agua y el valor nutritivo de alfalfa cultivada aplicando riego con agua residual urbana, agua de perforación y un testigo (precipitaciones, en el Campus de la Universidad Nacional de Rio Cuarto (Córdoba-Argentina. Los tratamientos de riego tuvieron un efecto positivo sobre la producción de biomasa aérea obteniéndose un 24% más de producción de biomasa que en la situación de secano (precipitaciones. Entre los tratamientos con riego también se manifestaron diferencias estadísticamente significativas. La alfalfa regada con aguas residuales urbana supero en un 19% a la cultivada con agua de perforación. La eficiencia del uso del agua por parte del cultivo se incrementó cuando el riego se realizó con aguas residuales urbanas. Además, se determinó que la alfalfa regada con agua residual, supera los valores nutritivos del cultivo que crece en condiciones sin riego; encontrándose 39% más de proteínas, 14% más de digestibilidad e igual porcentaje de energía metabólica. Se puede concluir que el agua residual urbana representa otra posible fuente de agua, factible de ingresar al suelo y estar a disposición para el cultivo de alfalfa.The objective of this study was to analyse the production of alfalfa biomass, the efficiency of water use and the nutritional value of forage, inside an irrigation structure of an experimental facility that uses treated urban wastewater, artesian well water and rainfall, at the campus of the Universidad National de Rio Cuarto (Córdoba-Argentina. The irrigation treatment had a positive effect on the production of biomass of alfalfa. On an average 24% increase in production was observed when compared to dry-land farming. Regarding the quality of the irrigation water, statistical differences in production were observed, the irrigation with urban wastewater produced 19% more than that of well water. The

  2. Regional Analysis of Precipitation by Means of Bivariate Distribution Adjusted by Maximum Entropy; Analisis regional de precipitacion con base en una distribucion bivariada ajustada por maxima entropia

    Energy Technology Data Exchange (ETDEWEB)

    Escalante Sandoval, Carlos A.; Dominguez Esquivel, Jose Y. [Universidad Nacional Autonoma de Mexico (Mexico)

    2001-09-01

    The principle of maximum entropy (POME) is used to derive an alternative method of parameter estimation for the bivariate Gumbel distribution. A simple algorithm for this parameter estimation technique is presented. This method is applied to analyze the precipitation in a region of Mexico. Design events are compered with those obtained by the maximum likelihood procedure. According to the results, the proposed technique is a suitable option to be considered when performing frequency analysis of precipitation with small samples. [Spanish] El principio de maxima entropia, conocido como POME, es utilizado para derivar un procedimiento alternativo de estimacion de parametros de la distribucion bivariada de valores extremos con marginales Gumbel. El modelo se aplica al analisis de la precipitacion maxima en 24 horas en una region de Mexico y los eventos de diseno obtenidos son comparados con los proporcionados por la tecnica de maxima verosimilitud. De acuerdo con los resultados obtenidos, se concluye que la tecnica propuesta representa una buena opcion, sobre todo para el caso de muestras pequenas.

  3. Cirugía coronaria con doble arteria mamaria: nuestra experiencia inicial y resultados a corto plazo

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    Jorge Alcocer-Diéguez

    2017-05-01

    Conclusiones: La cirugía coronaria con doble mamaria es una técnica segura y con excelentes resultados de morbimortalidad a corto plazo. Son necesarios estudios de seguimiento clínico y angiográfico a largo plazo para determinar la mejor estrategia quirúrgica a emplear.

  4. "Acreditamiento del impuesto por dividendos aplicables para evitar la doble tributación"

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    Hernández Sosa, Cleopatra

    2011-01-01

    Este trabajo de investigación es el producto del estudio de las implicaciones dentro del Derecho Fiscal internacional de una materia que se base, sobre todas las cosas, en la necesidad que tenemos nosotros los países de América Latina, de buscar una verdadera y sólida integración económica y haciendose énfasis en un aspecto tan importante como lo es el Comercio Internacional,y aún más tratándose de un tema tan importante como la búsqueda de la eliminación de la DOBLE TRIBUTACIÓN INTERNACIONAL...

  5. Restauración de la casa doble de Le Corbusier en la Weissenhofsiedlung

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    Arne Fentzloff

    2014-07-01

    Full Text Available La Casa Doble diseñada por Le Corbusier en 1927 para la Weissenhofsiedlung constituye un hito en el diseño y construcción de viviendas en el Movimiento Moderno. Su precario estado de conservación requería una restauración que la Fundación Wüstenrot ha acometido con la voluntad no de repristinar necesariamente a su condición originaria, sino de restaurar el conjunto y habilitarlo para la visita pública conservando al menos parcialmente las diversas reformas y adaptaciones de uso que había sufrido estas viviendas pareadas durante sus años de historia. El texto explica abundantes detalles constructivos de su proceso de diseño y construcción y revela las soluciones técnicas adoptadas durante la restauración.

  6. FRECUENCIAS ALELICAS Y GENOTIPICAS DEL GEN KAPPA CASEINA EN BOVINOS DE DOBLE PROPOSITO

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    Nohémi Gabriela Cortes López

    2012-01-01

    Full Text Available En este trabajo, las frecuencias alélicas (A y B del gen CAS se determinaron como criterio de selección en la calidad de la leche en el ganado bovino de doble propósito. Se tomaron muestras sanguíneas de 200 hembras bovinas y se colocaron en tubos que contenían EDTA. Se amplifico el marcador MB002 a partir de material genético extraído. Los RFLP se realizaron con la enzima de restricción Hinf I para el diagnóstico de los alelos A y B en CASκ. Las frecuencias genotípicas obtenidas correspondían a 0.34, 0.01 y 0.65 para los alelos AA, BB y AB, respectivamente. Las frecuencias alélicas fueron de 0.67 y 0.33 para los alelos A y B, respectivamente. Además, se registró una heterocigosidad promedio de 0.6481. La población es estudio no se encuentra en equilibrio Hardy Weinberg, el valor ji cuadrada fue de 2 = 14.8 con 2 grados de libertad (P < 0.005. Basado en la frecuencia alélica de CAS  B (0.34 observada en este estudio, el ganado de doble propósito puede ser una opción viable para aumentar la calidad de la leche si se utilizan sementales con el genotipo BB para el cruce. De esta manera, los alelos B asociados a la calidad de la leche pueden mejorarse en pocas generaciones.

  7. Comportamiento de las precipitaciones en el sector del lago Titicaca (Bolivia durante 'El fenómeno El Niño'

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    1998-01-01

    Full Text Available REGIME DES PRECIPITATIONS DANS LE SECTEUR BOLIVIEN DU LAC TITICACA AU COURS DU “PHENOMENE EL NIÑO”. Le phénomène “El Niño” affecte tout le territoire bolivien, provoquant des sécheresses dans plusieurs régions de l’Altiplano, dont fait partie le secteur du lac Titicaca, même en tenant compte du rôle thermorégulateur joué par le grand volume d’eau du lac. Ce travail a été réalisé pour évaluer l’influence des épisodes ENSO (phase chaude sur le régime des précipitations dans ce secteur, en apportant une attention particulière à l’ENSO 1982-1983. Nous avons étudié les précipitations de l’été (période humide provenant de 7 stations réparties dans les environs du lac Titicaca. Les premiers résultats montrent qu’il existe un déficit de précipitations dans la région étudiée, principalement au cours du El Niño 1982-1983 et de l’été antérieur où certains secteurs se situèrent cependant au-dessus de la normale. El fenómeno “El Niño” afecta significativamente a todo el territorio boliviano, con sequías en diferentes regiones del Altiplano del que no escapa el sector del lago Titicaca, aun teniendo en cuenta el comportamiento termorregulador del gran volumen de agua del Lago. Este trabajo se realizó para ver la influencia de los episodios ENOS (fase caliente en el comportamiento de las precipitaciones en el sector arriba nombrado se hizo énfasis en el ENOS 1982-1983. En el estudio se realizó un análisis del comportamiento de las precipitaciones de siete estaciones distribuidas alrededor del lago Titicaca. También se hizo una correlación con las aportaciones, probabilidades de precipitación para El Niño 1997, todo lo anteriormente nombrado para el periodo húmedo (verano. Como primeros resultados se tiene que, en toda la región estudiada, existe un déficit de precipitación principalmente en El Niño 1982-1983, y en el verano anterior 1981-1982, a pesar de que en algunos de los sectores

  8. El proceso de urbanización en la cuenca del río Chillán y su capacidad adaptativa ante precipitaciones extremas

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    Henríquez Ruiz, Cristian

    2009-06-01

    Full Text Available Chillan has been historically struck by hidro-meteorogical phenomenon, one of the most recent was in july, 2006. That generated large damages, victims and others lose. This shows the high vulnerability and low adaptive capacity of the watershed.

    This paper shows the process of urbanization in the basin is analyzed the period 1976-2007 in Chillan city and its relationship in the change in the surface runoff. Though a significant little increase in the likely surface runoff is observed, the tendencies of urbanization, studies of flood and consequences of torrential haste, they show the territorial planning instruments to include importance that act in a preventive way and do not revive set against these phenomena

    Chillán ha sido golpeado históricamente por fenómenos hidrometeorológicos, uno de los más recientes fue el de julio de 2006 que generó grandes daños, damnificados y víctimas fatales, lo que ha demostrado la alta vulnerabilidad y baja capacidad adaptativa de la cuenca. En esta investigación se analiza el proceso de urbanización en la cuenca de Chillán entre 1976-2007 y su relación en el cambio en la escorrentía superficial. Si bien se observa un aumento poco significativo en los montos de escorrentía estimados, las tendencias de urbanización, estudios de inundación y consecuencias de precipitaciones torrenciales, demuestran la importancia de contar con instrumentos de planificación territorial que actúen de manera preventiva y no reactiva frente a estos fenómenos.

  9. Análisis estacional de la erosividad de las precipitaciones y la potencialidad de pérdida de suelo en la localidad de azul (Provincia de Buenos Aires, Argentina)

    OpenAIRE

    Ares, María Guadalupe; Varni, Marcelo; Entraigas, Ilda

    2012-01-01

    La estimación de la erosividad de las precipitaciones a través del índice EI30 requiere contar con registros deta-llados de lluvia y su intensidad. Con el objetivo de hallar relaciones que faciliten su estimación se analizan las relaciones entre el factor EI30 y la pluviometría a escala diaria y estacional. Asimismo se estudian la variabili-dad estacional de la erosividad y los períodos de potencialidad de ocurrencia de eventos erosivos por despren-dimiento se suelo debido a la acción de la l...

  10. Adelantamiento con vehiculos autónomos en carreteras de doble sentido

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    Joshué Pérez

    2010-07-01

    Full Text Available Resumen: Las investigaciones llevadas a cabo para el control de vehículos autónomos en maniobras cooperativas están en la vanguardia de los Sistemas de Transporte Inteligente (ITS. Ejemplos de esta cooperación se plasman en intersecciones, control de crucero adaptativo (ACC y adelantamientos, entre otros. Los adelantamientos requieren especial atención en un entorno variable, y sobre todo si se aproxima un vehículo en sentido contrario. En el presente artículo se plantea un algoritmo de decisión, un sistema de comunicaciones entre tres vehículos y un controlador borroso para la conducción de un vehículo en una maniobra de adelantamiento. Se han considerado diferentes casos de uso, en los que conviene abortar o terminar la maniobra de adelantamiento en una carretera de doble sentido. Los resultados obtenidos demuestran que, basándonos en el conocimiento humano, se pueden ajustar controladores borrosos para la conducción autónoma de vehículos en maniobras de alto riesgo. Palabras clave: Comunicación entre vehículos, Adelantamientos, Controlador borroso, Vehículos autónomos, GPS

  11. SIMULACIÓN ESTACIONARIA DE UN EVAPORADOR DE DOBLE EFECTO PARA JUGO DE TOMATE

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    Álvaro Núñez

    2012-01-01

    Full Text Available En este trabajo se desarrolló un modelo estacionario para simular un sistema evaporador de doble efecto destinado a la concentración de jugo de tomate. Debido a que el licopeno muestra capacidad antioxidante, es deseable que su concentración sea máxima en la pasta de tomate. Ello se logra optimizando tanto el diseño como las condiciones de operación del equipo concentrador de jugo. Para alcanzar ese objetivo, se incorporó al modelo la cinética de degradación del licopeno, y se realizó un estudio de sensibilidad para determinar las relaciones que vinculan las variables de proceso. El estudio determinó que el contenido de licopeno en el producto es altamente sensible al tiempo de residencia; mientras que el consumo de vapor está determinado por la presión del vapor de servicio y las presiones de los efectos.

  12. Revascularización miocárdica con uso de doble arteria mamaria interna y morbilidad esternal. Experiencia de un centro

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    Sara Badia

    2017-05-01

    Conclusiones: En nuestra experiencia, la utilización de doble mamaria no se acompañó de mayor incidencia de dehiscencia esternal, pero si con problemas de infección superficial de la herida, sobre todo en el grupo de pacientes mujeres, con insuficiencia renal y transfundidos en quirófano. Para mantener el beneficio de la doble mamaria en estos pacientes, deberíamos ser especialmente cuidadosos e implementar nuevas estrategias de cierre esternal.

  13. Tipología de las explotaciones ganaderas de bovinos doble propósito en Sinaloa, México

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    Venancio Cuevas Reyes

    2016-01-01

    Full Text Available El objetivo del presente estudio consistió en realizar una tipología de las explotaciones ganaderas de bovinos de doble propósito en el estado de Sinaloa, usando variables sociales, económicas y tecnológicas. Se analizó información de 1,165 productores del sistema de producción de doble propósito que participaron en el programa Soporte de SAGARPA 2010-2011. A través del uso de componentes principales, análisis cluster y análisis de varianza fueron identificados y caracterizados cuatros tipos de explotaciones ganaderas; pequeñas explotaciones ganaderas (67 %, explotaciones ganaderas medianas (24 %, explotaciones ganaderas grandes (7 %, y explotaciones ganaderas grandes con potencial empresarial (2 %. La tipología obtenida puede ser útil para generar políticas públicas diferenciadas que incrementen el uso de innovaciones tecnológicas que incidan en una mayor eficiencia y productividad del sistema bovinos de doble propósito en Sinaloa.

  14. Principio de proporcionalidad y principio de Doble Efecto. Una propuesta desde la Filosofía del Derecho

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    Cristóbal Orrego-Sánchez

    2015-01-01

    Full Text Available El artículo propone, desde la perspectiva de la filosofía del derecho, un complemento del principio de proporcionalidad, acogido por una parte de la dogmática constitucional y de los tribunales constitucionales o internacionales que adjudican sobre derechos humanos, mediante el principio de doble efecto, clásico en la filosofía moral. Primero, plantea el problema de los análisis de proporcionalidad para la filosofía del derecho, en su aspecto fundamentalmente crítico y ético-político. Después, presenta el principio de doble efecto, de acuerdo con las investigaciones más recientes. Enseguida, sintetiza el principio de proporcionalidad, acudiendo también a algunas obras representativas de la dogmática constitucional. Finalmente, sugiere algunas comparaciones y formas de retener el principio, no obstante sus límites, mejorando su uso mediante la incorporación expresa del principio de doble efecto en la adjudicación constitucional sobre la protección de derechos fundamentales.

  15. LA RELACIÓN ENTRE TRATADOS DE INVERSIÓN Y CONVENIOS DE DOBLE TRIBUTACIÓN: el caso chileno

    OpenAIRE

    Lazo, Rodrigo Polanco; Villanueva, Felipe Yáñez

    2016-01-01

    El presente artículo examina las relaciones entre los tratados de inversión y los tratados de doble tributación, considerando que, en la actual evolución de ambos tipos de acuerdos, sus disposiciones pueden presentar superposiciones en aspectos tales como estándares de protección, transparencia, trato nacional, cláusula de la nación más favorecida, expropiación y transferencias de capital. Tomando el ejemplo de los tratados suscritos por Chile, en este trabajo se examinan las consecuencias de...

  16. Desarrollo de una bomba reciprocante de doble efecto para desalinización de agua por medio de osmosis inversa

    OpenAIRE

    Carlos Julián Ospina; Álvaro Pinilla

    2008-01-01

    El presente artículo describe el trabajo realizado en el desarrollo de un sistema de bombeo para desalinización con membranas de osmosis inversa. El sistema debe cumplir con requerimientos de alta presión (4.8 MPa) y bajos caudales (3.78 L/min), para operar la membrana de osmosis inversa en su rango de mínimo consumo energético. Para cumplir este objetivo se desarrolla un sistema de desplazamiento positivo de acción simple y doble efecto, impulsado con un motoreductor cicloidal. La bomba desa...

  17. Mejoramiento de la eficiencia de una extrusora de doble tornillo para fabricación de tubería

    OpenAIRE

    Suescum, Juan A.; Rigail, Andres

    2009-01-01

    El rendimiento de las máquinas en una industria es de gran importancia en el momento de determinar los costos del producto elaborado. En este trabajo se enfocó la optimización en el uso de una extrusora de doble tornillo con la finalidad de disminuir los gastos generados por desechos y fallas de calidad. Para esto, se describió el proceso de extrusión, considerando la composición del compuesto, el diseño del molde y de los calibradores. Conociendo el proceso se logró identificar sus limita...

  18. Análisis no lineal de mallas espaciales de doble capa

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    Estévez Cimadevila, Francisco Javier

    1991-04-01

    Full Text Available This paper is related to the topic developed in my RH.D. thesis. A new model is proposed to describe the non-linear behaviour of straight pin-jointed compression members. Sucti a method Is based upon obtaining the complete constitutive equations in the case of circular hollow sections. The stability functions of imperfect bars and the analytical formulation of the post-buckiing behaviour are obtained by taking the exact expression of the curvature in the integratlon of the differential equation of the elastic. The linearization of the constitutive relationships and the application of an incremental iterative model based upon the modification of the elasticity of the bars at critical point allows us to consider the non-linear analysis of the double layer space grids. The models of analysis proposed here have been applied to a wide variety of trusses with different characteristics and typologies, some examples of which accompany this paper.

    Este artículo corresponde al tema de investigación desarrollado en mi tesis doctoral. Se plantea un nuevo modelo para describir el comportamiento no lineal de piezas rectas biarticuladas sometidas a compresión, basado en la obtención de las ecuaciones constitutivas en el caso de los perfiles tubulares huecos de sección circular. Se obtienen las funciones de estabilidad de barras imperfectas y la formulación analítica del comportamiento postpandeo tomando la expresión exacta de la curvatura en la integración de la ecuación diferencial de la elástica. La linearización de las leyes constitutivas y la aplicación de un modelo incremental Iterativo basado en la modificación del módulo de elasticidad de las barras en estado crítico permite abordar el análisis no lineal de las mallas espaciales de doble capa. Los modelos de análisis propuestos se aplicaron a una amplia variedad de mallas de diversas tipologías y características de las que se acompañan algunos ejemplos en el artículo.

  19. Transculturación y la diferencia colonial. Doble traducción

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    Freya Schiwy

    2007-01-01

    Full Text Available En el marco del concepto wallersteineano de sistema mundo moderno/colonial –como fue modificado por Mignolo (2000- los autores abordan el problema de la traducción/transculturación. Misioneros y antropólogos en África, Asia y Mesoamérica solían realizar traducciones unidireccionales determinadas por los intereses metropolitanos con el fin de propiciar la asimilación y la conversión. La traducción fue, ciertamente, el proceso por el cual la colonialidad del poder articuló la diferencia cultural. Pero complejos mecanismos de reciprocidad, como el “translengüeo” podrían operar con el objetivo de trasladar conocimiento, emociones o memorias desde las cosmologías amerindias o subalternas a través del español o cualquier otro idioma colonial, como los Zapatistas han llevado a cabo. Para el subcomandante Marcos, la traducción no es meramente interlingüística sino también intercosmológica. Los autores proponen varios ejemplos de traducción/transculturación entre español y Tojolabal o Aymara para mostrar ese complejo y doble movimiento.In the frame of the Wallersteinean concept of modern/colonial world system –as modified by Mignolo (2000- the authors address the topic of translation/transculturation. Missionaries and anthropologists in Africa, Asia and Mesoamerica used to make one-way translations determined by metropolitan interests for the purposes of assimilation and conversion. Translation was indeed the process wherein the coloniality of power articulated the colonial difference. But complex mechanisms of reciprocity, as translanguaging, could operate in order to convey knowledge, emotions or memories from Amerindian or subaltern cosmologies through Spanish or any other colonial languages as the Zapatistas have performed. For “subcomandante” Marcos, translation is not merely interlinguistic but also intercosmological. The authors go through several examples of translation/transculturation between Spanish and

  20. Sistema de codificación y análisis de la calidad del dato en el tenis de dobles

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    Javier Oscar Garay Plaza

    2006-01-01

    Full Text Available En el presente trabajo se desarrolla un nuevo instrumento de observación que tiene por objeto codificar la acción de juego en el tenis de dobles. Esta herramienta se genera en el marco de la Metodología Observacional. Considerando el tenis de dobles como un deporte de colaboración-oposición, se efectuó el registro de diversas clases de comportamiento estratégico en términos de interacción entre las parejas de un partido de tenis de dobles y desarrollado en un contexto espacial. La perspectiva de investigación fue fundamentalmente empírico inductiva. La utilización de distintos procedimientos tales como la concordancia consensuada y el análisis de generalizabilidad en el transcurso de todo el proceso hizo viable el control y garantía de la calidad del dato.

  1. Distribución espacial de las precipitaciones diarias en Chile mediante el índice de concentración a resolución de 1 mm, entre 1965-2005

    OpenAIRE

    Sarricolea, Pablo; Martín-Vide, Javier

    2012-01-01

    Ponencia presentada en: VIII Congreso de la Asociación Española de Climatología celebrado en Salamanca entre el 25 y el 28 de septiembre de 2012. [ES]Chile posee una gran diversidad de climas, por causa de su amplia extensión latitudinal (17º29’57’’S a 56º32’ S), su contrastado relieve y los centros de acción y flujos (Anticiclón del Pacífico, Cinturón de bajas presiones subpolares, corriente en chorro, etc.). Las precipitaciones son muy dispares, entre 0,7 mm (Iquique) y 1.814,8 ...

  2. Recuperación del cromo y aluminio del licor de desecho (wl en forma de sales dobles

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    Pedro R. Bassas-Noa

    2006-03-01

    Full Text Available El licor WL es un residual de la industria del níquel agresivo al medio ambiente por su acidez que contiene elementos metálicos de gran valor. Se propone un tratamiento para la separación con  hidróxido de amonio y la recuperación de la mayor cantidad de cromo y aluminio contenidos en el mismo. Se logra precipitar una mezcla de hidróxidos de aluminio que tratada con ácido sulfúrico permite obtener, por cristalización, la sal sulfato de aluminio y amonio dodecahidratada. Posteriomente se cristaliza la sal sulfato doble de cromo y amonio dodecahidratado. Se demuestra que el sulfato doble de cromo y amonio dodecahidratado y el sólido separado presentan características químicas que hacen posible su aplicación en la industria textil y de cerámica, entre otras. El esquema aplicado permite la recuperación de valores metálicos y la disminución del alto poder contaminante del licor de desecho WL.

  3. INFLUENCIA DE LA BACTERIA Pseudomonas fluorescens EN LA LECHE, SOBRE LAS CARACTERÍSTICAS SENSORIALES DEL QUESO DOBLE CREMA

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    SJ González

    2007-01-01

    Full Text Available El objetivo de este trabajo fue observar el efecto de la presencia de microorganismos psicro-tróÀcos en la leche, sobre las características sensoriales del queso doble crema. Para esto, se inoculó la leche con un cultivo de Pseudomonas Áuorescens, a un nivel de 108 unidades formadoras de colonia por mililitro (ufc/ml. La leche se refrigeró a 4 ºC por seis días, se pasteurizó y posteriormente se preparó el queso. Se elaboraron lotes de queso cada 10 días, con el Àn de obtener siete tiempos experimentales. A cada uno se le determinó la vida útil sensorial. Los resultados de las pruebas sensoriales se analizaron con el programa S-PLUS de estadísti-ca de supervivencia aplicada a la vida útil sensorial de alimentos. Se determinó que el tiempo de vida útil sensorial del queso doble crema elaborado con leche en estas condiciones, y alma-cenado a 4 °C, está alrededor de 30 días, disminuyendo en un 50% con relación al patrón.

  4. Materiales composites micro- y nano-estructurados basados en hidróxidos dobles laminares de tipo hidrotalcita y silicatos de la familia de las arcillas.

    OpenAIRE

    Aranda, Pilar; Gómez Avilés, Almudena; Ruiz-Hitzky, Eduardo

    2008-01-01

    Materiales composites micro- y nano-estructurados basados en hidróxidos dobles laminares de tipo hidrotalcita y silicatos de la familia de las arcillas. La presente invención se refiere a materiales composites micro- o nano-estructurados basados en hidróxidos dobles laminares de tipo hidrotalcita y silicatos de la familia de las arcillas. La invención también se refiere al procedimiento de preparación de estos materiales así como a su uso en aplicaciones diversas tales...

  5. ¿Doble reaseguro o doble inestabilidad?: El papel de EEUU en Asia y el conflicto por las islas Senkaku/Diaoyu

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    Gracia Abad

    2016-05-01

    Full Text Available Durante décadas, tras la II Guerra Mundial, EEUU ha jugado un papel clave en la seguridad de Asia Pacífico como estabilizador exterior.En el contexto actual de lucha por la hegemonía en Asia entre los propios Estados Unidos y la República Popular de China, esa situación puede estar cambiando. Así parece ponerse de manifiesto en los distintos conflictos planteados en la región y, en concreto, en el de las islas Senkaku/Diaoyu entre la República Popular de China y Japón, aliado en el área de Estados Unidos

  6. Sistema de producción doble propósito efecto del zeranol y de 17-b estradiol sobre el peso al destete en terneros cruzados

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    Sánchez G. Hugo

    1986-06-01

    Full Text Available En la primera semana de vida se implantaron veinticuatro (24 terneros machos provenientes de una ganadería de doble propósito con 17 -8 estradiol (Compudose-200, zeranol (Ralgro con reimplante a los noventa días, zeranol una sola dosis y con el control. El peso al destete a los ocho meses y ganancia de peso diario fue de 135_3, 138.1, 1260 Y 124 kg Y de OA18, OA08, 0.368 y de 0.355 kg/día respectivamente con diferencias significativas (P < 0.05, atribuyéndose el mejor desempeño de los terneros implantados a la mayor eficiencia alimenticia de su dieta compuesta por leche y pasto exclusivamente. A los 10,52, 100, 134, 158,294 y 253 días la respuesta es de tipo parabólico con relación al grupo control, la máxima respuesta se obtienen con 17 -B estradiol y zeranol reimplante a los 120 días. El tratamiento con zeranol experimentó una brusca caída a los 90-100 días al terminar su efecto ya lo largo del trabajo el comportamiento fue bajo y errático, atribuido a un desajuste endocrino. Desde el punto de vista biológico y económico los anabólicos son favorables en la cría de los terneros en los sistemas de producción de doble propósito predominantes en el país.In its first week of age 24 males calves from a dual purpose herd were implanted as follows: (1 6 with estradiol17- B (Compudose-200l, (2 6 with zeranol (Ralgro reimplanted 90 days later, 6 with a single dose of zeranol, and (4 6 calves as control group. The weaning weight at eight months of age, and the average daily gains were 135.3, 138.1, 126.0, and 124.0 kg and OA 18, OA08, 0.368 and 0.355 kg/day for groups 1, 2,3 and 4 respectively (P < 0.05. The better perfomance of the implanted groups was asigned to a greater feeding efficiency, due to a diet made of milk and grass exclusively. At 10, 52, 100, 134, 158, 294 y 253 days of age the response is of parabolic type in relation to the control group. The largest response are obtained with treatments (1 and (2. The treatment

  7. La influencia del fenómeno El Niño y del índice de oscilación del sur en las precipitaciones de Cochabamba, Bolivia

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    1998-01-01

    Full Text Available INFLUENCE DU PHENOMENE EL NIÑO ET DE L’INDICE D’OSCILLATION DU SUD SUR LES PRECIPITATIONS DE COCHABAMBA, BOLIVIE. On n’avait, jusqu’à présent, apporté que peu d’importance à l’influence du phénomène El Niño et de l’Indice d’Oscillation du Sud (IOS sur les précipitations de Cochabamba et plus généralement de la Bolivie. L’étude a été réalisée à partir de l’information de 20 stations météorologiques des vallées hautes, centrales et basses du département de Cochabamba, situées entre 17°20’ et 17°45’ de latitude sud et 66°05’ et 66°20’ de longitude ouest en utilisant aussi les séries de TSM et de l’IOS. Les séries ont été étudiées au niveau annuel, mensuel et journalier, au niveau qualitatif et quantitatif. Une analyse des séries chronologiques a déterminé l’année hydrologique et les anomalies de précipitations, en calculant une moyenne mobile sur 4 ans pour les stations soumises à une influence rémanente des fronts du sud et à celle de la Zone de Convergence Intertropicale-ZCIT, et sur 5 ans pour le reste des stations. On a pu conclure que l’influence du phénomène El Niño était plus nette dans les précipitations enregistrées à Cochabamba qu’à Arani, alors que l’influence de l’IOS se fait davantage sentir à Arani qu’à Cochabamba. Ceci montre bien l’influence du phénomène El Niño et de l’IOS sur la distribution spatio-temporelle des précipitations des vallées de Cochabamba. Ces anomalies affectent directement l’agriculture et contribueront ensuite à l’aggravation des problèmes socio-économiques du département de Cochabamba. Tradicionalmente se ha dado poca importancia al fenómeno El Niño y al Índice de Oscilación del Sur en la influencia de la distribución espacio-temporal de las precipitaciones que se registran en los valles de Cochabamba, principalmente, y de forma general en Bolivia. El estudio se realizó en los valles Alto, Central y Bajo del departamento de

  8. La fábrica de doble hoja en Madrid, un siglo de cerramiento moderno

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    Ros García, Juan Manuel

    2005-02-01

    highlight the generation of trends in the use of technical systems for the compositional organization of each enclosure studied and all of them taken together, identifying the existence of the application of certain construction solutions related to internal architectural requirements, such as the representative and social nature of the work, economic resources available, compliance with the existing legislation, adaptation to a specific programme, growing importance of social satisfaction in residential endeavours, changes introduced with the appearance of new structural typologies, presence of buildings as the urban repercussion on city planning and new developments, and so on Hence, the internal consistency of a real change in the process of ideological modernity was favoured by the generalized constructional rationalization of the technical progress that made it possible; the purpose of this brief article is to discuss and evaluate each case in experimental terms.

    El presente trabajo se centra en el desarrollo y la implantación del sistema de doble hoja en los cerramientos de fábrica dentro de la arquitectura residencial madrileña a lo largo de los dos primeros tercios del siglo XX. De una parte, se aborda la cuestión desde un campo de comprensión histórica comparada, en la que pueda llegarse a definir una conciencia clara de evolución o de impulso de progreso a través de ciertas y reconocidas manifestaciones arquitectónicas que sucedieron paralelamente con el período de revolución técnica en Europa y su más lenta penetración en nuestro país, centrando el análisis en su localización madrileña. De otra, se consideran los sistemas y métodos constructivos generales aplicados a distintas tipologías y determinados ejemplos notables, con el fin de asociarlos a posibles modos de innovación técnica en los procesos expansivos de la vivienda de calidad arquitectónica, a la que se atribuye una coherencia material y formal. La incorporación de los

  9. El conflicto interrol en parejas de doble ingreso identificación y comprensión de las relaciones trabajo-familia

    OpenAIRE

    Infante Rejano, Eduardo

    2000-01-01

    Desde las perspectivas sistémicas, la tesis describe y explica las relaciones posibles entre el ámbito del trabajo y el ámbito de la familia. Introduce el concepto de pareja de doble ingreso/carrera y de conflicto trabajo-familia, mostrando los tipos y la

  10. Los Sofistas y la Antilogía. Sobre las Estructuras Argumentales en los "Discursos Dobles" y en Gorgias

    Directory of Open Access Journals (Sweden)

    Alejandro Ramírez Figueroa

    2016-06-01

    Full Text Available RESUMEN: Se examina la estructura lógica de la antilogía como forma de pensamiento ejercida por los sofistas. Se sostiene que, si bien en los argumentos antilógicos se encuentran falacias de tipo no formal, al menos algunos de tales razonamientos no son falacias desde un punto de vista simbólico formal, sino que poseen estructuras que hoy se pueden reconstruir como esquemas con validez lógica. Se analizan específicamente dos lugares de argumentaciones sofistas: los denominados Discursos dobles, textos anónimos del IV AC, y la obra principal de Gorgias. Se identifican en ellos 8 argumentos con estructura lógica válida.

  11. MODELO MATEMÁTICO APLICADO A LA CURVA DE LACTANCIA EN GANADO VACUNO DOBLE PROPÓSITO

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    Luz Botero

    2006-05-01

    Full Text Available hembras vacunas. Materiales y métodos. Durante 11 meses, se estudió la producción de leche en 500novillas doble propósito Bos taurus x Bos indicus, de las sabanas del trópico bajo colombiano. Laproducción se cuantificó en kilogramos. Se incluyeron los datos de la producción de leche en época(seca-lluviosa y número de lactancias (primera; segunda y tercera y, más de tres. Los datos hacen partedel archivo de la Ganadería XB, ubicada en las sabanas de Bolívar, Colombia, recopilados desde el año1990 hasta el 2000. A estos datos se le aplicó los modelos lineal simple, cuadrático, lineal logarítmico,cuadrático logarítmico, gamma incompleto, lineal hiperbólico y polinomial inverso. Los parámetros paralos modelos gamma incompleto y polinomial inverso fueron estimados, a partir del método de “Gauss-Newton”, para la regresión no lineal; los demás modelos fueron ajustados por regresión lineal de lasproducciones, en función de los meses en lactancia, por el método de los cuadrados mínimos. Resultados.En los modelos propuestos, se observó que el modelo polinomial inverso es el que mejor caracteriza lacurva de lactancia por presentar los mayores valores para el estadístico Durbin-Watson y coeficiente dedeterminación (R2 y sobre dicho modelo existe información necesaria para obtener parámetros prácticoscalculados a partir de la ecuación de la curva de lactancia. Conclusión. El modelo matemático polinomialinverso se constituye en una excelente herramienta para aplicar en la administración y toma de decisionesen el manejo de hatos del sistema de doble propósito

  12. Reconstrucción de rodilla con doble colgajo de gemelo Knee reconstruction with double gemelar muscular flap

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    C. Márquez Zevallos

    2011-06-01

    Full Text Available Los traumatismos de miembros inferior representan un reto importante para el cirujano plástico en cuanto a su reconstrucción cuando no se dispone de técnicas microquirúrgicas. En el presente trabajo se presentan 2 casos de reconstrucción de rodilla con doble colgajo muscular de gemelo, en los que se demuestra que se pueden utilizar simultáneamente los dos gemelos sin dejar ninguna secuela estética importante ni funcional en la deambulación de los pacientes. Hasta donde podemos conocer, no existe en la literatura nacional ni internacional un reporte de casos con esta aplicación, ya que siempre se ha empelado un solo músculo precisamente por el temor a alterar la función de flexo-extensión del pie.Lower limb traumatism has always been a problem for plastic surgeon when in the moment of the surgical reconstruction we have not microsurgical techniques. In this paper, we present 2 cases of knee reconstruction using a double gemelar muscular flap, showing how is possible the simultaneous use of the two muscles without aesthetic or functional sequels. As we know, there is no national or international report of cases with this muscular reconstruction; it has been usual to use only one muscle, in order to avoid problems in the flexo-extension movements of the foot.

  13. EEES, COMPETENCIAS Y APRENDIZAJE DEL DERECHO ROMANO MEDIANTE EL MÉTODO DEL CASO (I: EL DOBLE MATRIMONIO

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    Elisa Muñoz Catalan

    2013-01-01

    Full Text Available Con la realización del presente trabajo pretendemos investigar sobre la importancia actual de aplicar el método del caso en la enseñanza del Derecho Romano, frente a las tradicionales clases teóricas y magistrales. Reparando, muy especialmente, en el alcance de las exigencias metodológicas surgidas con los nuevos planes del estudio Grado en Derecho en el marco del EEES; así como en el desarrollo de una serie de competencias generales y específicas en los estudiantes, que les van a ser muy útiles una vez que finalicen el Grado y se enfrenten a las dificultades del mercado actual, ya que se consideran como los verdaderos protagonistas del proceso de enseñanza-aprendizaje. Por tanto, con la puesta en práctica de este primer caso sobre doble matrimonio romano, ausencia de testamento y herederos legítimos, intentamos acercar al alumnado al casuismo jurisprudencial romano; de este modo, comprenderán que lo importante no es dar la solución al supuesto planteado, sino razonar jurídicamente consiguiendo, a través de debates en grupos, un conocimiento más profundo de las reglas e instituciones aplicables.

  14. LA RELACIÓN ENTRE TRATADOS DE INVERSIÓN Y CONVENIOS DE DOBLE TRIBUTACIÓN: el caso chileno

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    Rodrigo Polanco Lazo

    Full Text Available El presente artículo examina las relaciones entre los tratados de inversión y los tratados de doble tributación, considerando que, en la actual evolución de ambos tipos de acuerdos, sus disposiciones pueden presentar superposiciones en aspectos tales como estándares de protección, transparencia, trato nacional, cláusula de la nación más favorecida, expropiación y transferencias de capital. Tomando el ejemplo de los tratados suscritos por Chile, en este trabajo se examinan las consecuencias de las trasposiciones de ambos acuerdos, desde el punto de vista de sus mecanismos de solución de controversias, como en lo referido a los conflictos de jerarquía normativa entre esos dos tipos de tratados. Asimismo, se efectúa un análisis sobre iniciativas de tipo multilateral que afectan a ambas categorías de acuerdos como el Base Erosion and Profit Shifting (BEPS.

  15. II Actas Congreso .¿Nuevos feminismos?

    OpenAIRE

    Pinyana i Garí, M. Carme

    2005-01-01

    ÍNDICE Presentación CONSOL AGUILAR RÓDENAS I. PONENCIAS La representación de la violencia / la violencia de la representación: De Jack el Destripador a Ciudad Juárez, pasando por la pantalla de la televisión,MARÍA RUIDO. Las apostillas al cuerpo: un ámbito de debates feministas, MERI TORRAS. Mujeres jóvenes y movimientos feministas: ¿Una nueva generación de feministas?,SHAMILLAH WILSON. La doble discriminación de las lesbianas,BEATRIZ GIMENO. II. MESAS REDONDAS ...

  16. Effect of Quantity and Distribution of Rainfalls on Hordeum murinum L. Growth and Development Efecto de la Cantidad y Distribución de las Precipitaciones en el Crecimiento y Desarrollo de Hordeum murinum L.

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    Myrna Johnston B

    2009-06-01

    Full Text Available The growth and development of Hordeum murinum L. seeds growing with extreme pluviometric regimes in cool greenhouse conditions were evaluated. Seven treatments according to quantity and distribution of real rainfalls of the semiarid zone of the Metropolitan Region, Chile were applied: rainy-late, normal-late, dry-early, rainy-normal, normal-early and dry-late, plus a reference without water stress, at 2/3 field capacity. The experimental design was randomized complete blocks with five replicate pots. Seeds produced in the last year were sown in pots with disinfected soil leaving the more uniform plants after emergence. Evaluations were made of phytomass production, spearing shoots of roots, the quantity of floral stems and seeds, their total weight and the proportion of seed annex structures, and the viability and germination capacity of seeds. The life cycle of dry years was shortest and with the least dry shoot matter production, the rainy-normal and normal-late years had similar dry root matter production, therefore the most important factor was rainfall distribution. All the reproductive growth values were lower than the reference. There was no seed production in both distributions of dry years and in the normal-early. There were only differences in late distributions, there were no differences among treatments in seed quality. Thus, H. murinum uses its resources principally for seed production and late distributions determined seed production.Se evaluó el desarrollo de plantas de Hordeum murinum sometidas a regímenes pluviométricos simulados en invernadero frío. En un diseño de bloques completos al azar con cinco repeticiones, se establecieron tratamientos según cantidad y distribución de las precipitaciones reales del secano de la Región Metropolitana, Chile: lluvioso-tardío, normal-tardío, seco-temprano, lluvioso-normal, normal-temprano, seco-tardío y uno de referencia sin restricción hídrica. Se sembraron semillas del a

  17. La presencia de Max Weber en el pensamiento español. Historia de una doble recepción

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    Ruano de la Fuente, María Yolanda

    2007-08-01

    Full Text Available This paper examines two diverse and confronted receptions of Max Weber’s thought in the Hispanic world which we have described as “conservative” and “liberal” lines of interpretation. This analytical scheme allows us to group and highlight some of the most distinguished Spanish intellectuals whose work was influenced by Max Weber’s thought. We will review the context and the particular mode in which these intellectuals assimilated the German author’s work, the meaning of their interpretations and their labour of translation. In short, we will focus on the works of some renowned Hispanic philosophers, jurists and sociologists belonging to the “first interpretative generation” at work from the 1920’s to the 1940’s.Este artículo examina una doble y contrapuesta línea de recepción del pensamiento de Max Weber en el mundo hispanoparlante, que hemos denominado línea “conservadora” y línea “liberal”. Este esquema interpretativo permite agrupar y reseñar a algunos de los más destacados intelectuales españoles, cuyas obras estuvieron marcadas por la influencia del pensamiento de Max Weber. Revisamos el contexto, el sentido de la recepción, la labor de traducción y el modo peculiar en que asimilaron el trabajo del autor alemán. Nos centramos, en suma, en la obra de algunos renombrados filósofos, juristas y sociólogos de habla hispana, si bien limitamos nuestro análisis a la “primera generación receptora”, que fechamos en las décadas de los años 20 a los 40 del siglo XX.

  18. Fauna silvestre asociada a ganado vacuno doble propósito en sistema de silvopastoreo, Pinto, Magdalena, Colombia

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    Jaime De La Ossa V.

    2011-12-01

    Full Text Available Objetivo. Evaluar la biodiversidad faunística asociada a ganadería vacuna de doble propósito en dos potreros estructurados con Botriochloa pertusa (colosoana como herbácea dominante, uno de ellos plantado con Crescentia cujete (Bignoniaceae como fuente de alimento adicional y otro con escaso y disperso arbolado. Materiales y métodos. El área de estudio está ubicada en el municipio de Pinto, Magdalena. Cada potrero evaluado fue de 10 ha, se mantuvo en cada uno un lote de quince vacas (½ Cebú, ¼ Pardo y ¼ Costeño con Cuernos, la separación entre las áreas muestreadas fue de 500m. Los registros de fauna se condujeron mediante punto fijo de conteo, en diez sitios de avistamiento, durante 20 días continuos, con cubrimiento visual amplio. Al ganado vacuno adulto presente en las dos áreas de trabajo se le realizó un pesaje individual al inicio del trabajo y al final del mismo, con el fin de determinar posibles diferencias entre ellos. Resultados. Estadísticamente el número de individuos y el número de especies presentaron diferencias significativas, siendo mayor la diversidad biológica para el potrero que poseía la plantación de C. cujete, mientras que el peso corporal de las vacas sometidas a pastoreo en las dos áreas no presentó diferencias significativas. Conclusiones. Se demuestra la importancia de este modelo pecuario como promotor de la conservación faunística local al convertirse enrefugio de variadas especies silvestres, al tiempo que mantiene la productividad existente sin alterar el ambiente sustancialmente.

  19. Alcance jurídico fiscal del establecimiento permanente de empresas extranjeras en los convenios de doble imposición internacional

    OpenAIRE

    Bermeo Córdova, Carmen Lucía

    2013-01-01

    Los convenios de doble imposición internacional surgen ante la necesidad de regular aquellas situaciones en las que dos potestades fiscales ejercen su facultad tributaria gravando la actividad de un mismo sujeto pasivo y dentro de un mismo período. Este fenómeno, más allá de crear un conflicto entre los Estados, constituye un obstáculo para el libre intercambio de bienes y servicios, por lo que ha sido motivo de análisis y discusión de organismos internacionales y regionales, entre ellos, la ...

  20. Control de gestión en unidades de producción de ganadería de doble propósito

    OpenAIRE

    Martínez, Edmar; López, María Isolina

    2012-01-01

    La empresa agropecuaria, al igual que las empresas comerciales, manufactureras o de servicios, requiere ser gerenciada con criterios administrativos que le permitan mejorar su proceso productivo, el uso eficiente de los recursos e incrementar su rentabilidad. Esta investigación tuvo como objetivo analizar el control de gestión utilizado en unidades de producción de ganadería de doble propósito del municipio Colón del Estado Zulia. La población estuvo conformada por el 10% de 903 f...

  1. Doble Aneuploidia (Trisomia 21 Y XXY): Reporte de caso de Sindrome Down-Klinefelter con delecion (XP)(P11.3-Pter) heredada

    OpenAIRE

    De La Torre-Hernandez, Carlos A; Ochoa-Sifontes, Julio C

    2015-01-01

    En los síndromes Down (SD) y Klinefelter (SK) independientes entre si, ambas aneuploidías cromosómicas son causadas por exceso. La ocurrencia de estas dos alteraciones en un individuo es un fenómeno relativamente raro. En casos de doble aneuploidiìa donde están involucrados autosomas y cromosomas sexuales, predominan las manifestaciones clínicas relacionadas con los autosomas y se solapan las de cromosomas sexuales. Caso clínico: se trata de un paciente de dos anÞos de edad, con signos sugere...

  2. Evaluación del comportamiento hidráulico en un reactor anaerobio de doble cámara (RADCA)

    OpenAIRE

    Nancy Rincón; Andres Galindo; Jhonny Pérez

    2011-01-01

    En la remoción de carga orgánica en un sistema de tratamiento de aguas residuales intervienen los procesos bioquímico y aspectos hidrodinámicos como las características de flujo, régimen de mezcla, tiempos de residencia, geometría del reactor, por otro lado las condiciones de flujo no ideal tales como cortos circuitos, zonas muertas y recirculación interna afectan su desempeño. En esta investigación se evaluó el comportamiento hidráulico de un reactor anaerobio de doble cámara (RADCA) de 5...

  3. Educación mapuche y educación escolar en la Araucanía: ¿doble racionalidad educativa?

    OpenAIRE

    Quilaqueo Rapimán,Daniel; Quintriqueo Millán,Segundo; Riquelme Mella,Enrique Hernán; Loncón Antileo,Elisa

    2016-01-01

    Resumen Este artículo aborda la construcción social de una doble racionalidad en el conocimiento educativo mapuche. El marco de referencia sostiene una base epistémica de conocimientos educativos mapuche y la noción de relación con el saber, donde la ecuación pasado incorporado más contexto de acción presente, es igual a prácticas observables. La metodología plantea una crítica epistemológica a la investigación tradicional realizada sobre los pueblos indígenas. Los resultados sintetizan las p...

  4. Las relaciones causales recíprocas del binomio Partida Doble-desarrollo de Occidente: La Teneduría de Libros de los mercaderes medievales

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    Juan Lanero Fernández

    2010-06-01

    Full Text Available Mucho se ha escrito sobre la aportación de la Partida Doble al desarrollo económico de Occidente. El presente trabajo pretende presentar un análisis detallado del papel que desempeñó la contabilidad en la génesis del capitalismo. La contabilidad, como herramienta de gestión, fue un factor clave en la organización comercial.Después de ofrecer una visión panorámica de la organización del comercio en la época medieval y de considerar varias acepciones del concepto de partida doble, el estudio concluye que ésta fue al mismo tiempo causa y efecto de la transición de los mercaderes itinerantes a sedentarios.La expansión del comercio y del número de inversiones en las que un mercader podía estar inmerso a un mismo tiempo creó la necesidad de una integración y un ordenamiento que, en cierto modo, la Partida Doble exigía y propagaba. Un comercio más amplio demandaba un sistema gerencial mejor. Ese buen sistema gerencial –la partida doble-, fue un factor decisivo en el incremento comercial.Thousands of pages have been written about the double-entry contribution to the economic development of the Western world. The present paper tries to present a detailed analysis on the role played by Accounting in the genesis of capitalism. Accounting, as a management tool, was a key factor in the commercial organization.After having offered a general view about the organization of commerce in the Medieval era, some double-entry concepts are dealt with. The study concludes that double-entry was at the same time cause and effect of the transition from travelling merchants to resident ones.The expansion of commerce and the number of investments a merchant could be involved in at a time created the need of an integration and an order that, to certain extent, double-entry implied and spread. A bigger commerce demanded a better management system. This managerial system –the double-entry-, was a conclusive factor in the commercial growth.

  5. Factores que determinan el uso de innovaciones tecnológicas en la ganadería de doble propósito en Sinaloa, Mexico

    OpenAIRE

    Venancio Cuevas Reyes; Julio Baca del Moral; Fernando Cervantes Escoto; José Antonio Espinosa García; Jorge Aguilar Ávila; Alfredo Loaiza Meza

    2013-01-01

    El objetivo del presente estudio fue analizar los factores que inciden en la adopción de innovaciones por parte de productores de bovinos de doble propósito. Mediante selección no estocástica de 121 productores que participaron en el programa Soporte de la SAGARPA en el periodo 2010-2011, se identificaron por medio de estadísticos de posición, tres tipos de productores con diferente uso de tecnología (alto, medio y bajo); por medio de un análisis de varianza y una prueba de Ji-cuadrada se det...

  6. Observación de la conducta homosexual en un rebaño de vacas mestizas de doble propósito

    OpenAIRE

    Lozada Melero, Rafael Enrique

    2011-01-01

    La identificación de la conducta homosexual de las hembras bovinos de la ganadería mestiza de doble propósito en la República Bolivariana de Venezuela, particularmente en el estado Trujillo; ha sido poco estudiada a pesar de ser una importante herramienta en la unidad de producción bajo programas de inseminación artificial. Para determinar la frecuencia de los principales síntomas y signo del celo, así como su relación con el diagnostico de la gestación por vía transrectal, en una finca (...

  7. Observación de la conducta sexual en un rebaño bovino de doble propósito en el estado Trujillo

    OpenAIRE

    Linares, Eivar

    2009-01-01

    La identificación de la conducta sexual de los bovinos de la ganadería mestiza de doble propósito en la Republica Bolivariana de Venezuela, ha sido relativamente poco estudiada a pesar de constituir una de las tareas más importantes que se desarrollan en el control reproductivo en un sistema de explotación bajo la técnica de inseminación artificial. Para determinar los principales síntomas y signo del celo asociados a la primera monta de celo observada, en una finca de ganado mestizo de d...

  8. LOS PROCESOS DE ÚNICA INSTANCIA EN EL CÓDIGO GENERAL DEL PROCESO: LA GARANTÍA CONSTITUCIONAL DEL DEBIDO PROCESO Y LA DOBLE INSTANCIA

    OpenAIRE

    Jiménez Ramírez, Milton César; Yáñez Meza, Diego Armando

    2017-01-01

    En el presente artículo se evalúa la figura de la única instancia en la ley 1564/2012 o Código General del Proceso, con la finalidad de determinar si estos procesos son una infracción a la garantía constitucional del debido proceso y la doble instancia. Esta ley en sus artículos 17, 19 y 21, estableció la competencia de los jueces civiles municipales, civiles de circuito y de familia en procesos de única instancia, disposiciones que pueden constituirse como una infracción a la garantía proces...

  9. Desarrollo de una bomba reciprocante de doble efecto para desalinización de agua por medio de osmosis inversa

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    Carlos Julián Ospina

    2008-05-01

    Full Text Available El presente artículo describe el trabajo realizado en el desarrollo de un sistema de bombeo para desalinización con membranas de osmosis inversa. El sistema debe cumplir con requerimientos de alta presión (4.8 MPa y bajos caudales (3.78 L/min, para operar la membrana de osmosis inversa en su rango de mínimo consumo energético. Para cumplir este objetivo se desarrolla un sistema de desplazamiento positivo de acción simple y doble efecto, impulsado con un motoreductor cicloidal. La bomba desarrollada es evaluada experimentalmente bajo condiciones de laboratorio. El análisis de los resultados evidencia altas eficiencias de conversión de energía a lo largo del ciclo de bombeo. Posteriormente, el sistema de bombeo es evaluado en conjunto con una membrana de osmosis inversa, obteniéndose resultados satisfactorios en cuanto a tasas de flujo y concentraciones de permeado. El diseño cumple con los requisitos para sustituir sistemas de bombeo usados en la actualidad, tecnológicamente más complejos y al mismo tiempo más costosos./ The present paper describes the work carried out in the development of a pump system for water desalination in a small reverse osmosis plant. The system must satisfy high pressure (4.8 MPa and low flow rates (3.78 L/min to operate the reverse osmosis membrane in its minimum energy consumption range. In order to achieve this objective, a positive displacement pump system (single action double effect driven by a cyclo speed reduction was developed. The system was tested under laboratory conditions. The analysis of the results shows high energy conversion efficiencies throughout the pumping cycle. The equipment was validated based on the acceptable flow and permeates concentration results. This design is able of replacing actual pump systems that are technologically complex and at the same time more expensive.

  10. Diseño, cálculo y comprobación de unión soldada en viga de puente grúa de alma doble

    OpenAIRE

    Fraile Griborio, Francisco J.

    2011-01-01

    El trabajo se basa en el diseño y la comprobación de las uniones soldadas en una viga con alma doble que servirá como Puente Grúa. Partiendo de un ejemplo particular de una viga con alma doble (definido por la longitud, la carga máxima y las características químicas y mecánicas de las chapas metálicas) se ha realizado el pre‐dimensionado de la estructura utilizando un programa de cálculo (SAP2000). Los resultados se han comprobado mediante un modelo teórico de cálculo para vigas con alma dobl...

  11. Efecto de la suplementación con grasa protegida sobre la producción y calidad de carne de toretes mexicanos doble propósito

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    German Mendoza M

    2011-04-01

    Full Text Available Objetivo. Evaluar la respuesta productiva y calidad de la carne de toretes doble propósito a la adición de grasa protegida (GP en su dieta. Materiales y métodos. Se utilizaron 45 toretes comerciales (B. taurus x B. indicus, divididos en tres bloques de 15 animales, de acuerdo con su peso vivo en pequeños, medianos y grandes. Cada bloque fue dividido en tres subgrupos de 5 animales, asignados aleatoriamente a los tratamientos 0, 1.5 y 3% de GP, en un diseño de bloques completamente al azar. Resultados. No hubo diferencias (p>0.05 en comportamiento productivo. La grasa dorsal fue mayor (p0.05 en área del ojo de la costilla (AC ni pH de la carne. El contenido de proteína cruda de la carne incrementó (p0.05 entre tratamientos. Conclusiones. Adicionar GP a dietas para bovinos doble propósito en finalización no modificó la respuesta productiva, pero mejoró algunas características de la canal y de la carne. Se sugiere realizar más investigación, utilizando el mismo tipo de animales, con niveles mayores de GP a los usados en este estudio, ya que la respuesta pudiera mejorar.

  12. LA CONTABILIDAD Y LA PARTIDA DOBLE: REPERCUSIÓN EUROPEA DE LA OBRA MAESTRA DE LUCA PACIOLI (SIGLOS XVI-XVIII

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    Miguel Gonçalves

    2011-08-01

    Full Text Available El artículo asume como finalidad la de analizar como se procesó la divulgación del método de la partida doble, con especial relevo para la literatura contabilística que en mucho ayudó a su difusión. De entre los diversos autores que contribuyeron para su generalización y difusión, se destaca Luca di Bartholomeu dei Pacioli. Por consiguiente, el artículo también tiene como objetivo presentar una reseña de los principales aspectos de la vida y de la obra de este tratadista de la Contabilidad, considerado por muchos el precursor de nuestra disciplina, por haber publicado en 1494 en Venecia la Summa de Arithmetica, Geometria, Proportioni et Proportionalita, obra primordial en el dominio de nuestra especialidad, más concretamente una sección suya – el Tratatus Particularis de Computis y Scripturis (De las Cuentas y las Escrituras. Palabras-clave: Historia de la Contabilidad. Partida Doble. Registros Contabilísticos. Luca Pacioli. De Computis et Scripturis.

  13. Un análisis del escenario económico del Perú y Chile, desde la perspectiva del doble diamante de la competitividad global

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    Jesús C. Peña-Vinces

    2009-11-01

    Full Text Available Las pequeñas economías, como la peruana y chilena, se encuentran inmersas en la arena global de las economías emergentes, por lo que evaluarlas desde un punto de vista puramente local (Porter1990 sería un enfoque bastante limitado y poco útil. Este hecho hace que el diamante nacional de Porter (1990 resulte, a todas luces, insuficiente para dicho propósito (Moon et al. 1998: 135. Este artículo analiza las economías mencionadas desde un enfoque más global, que incluye tanto el mercado local como el extranjero; es decir, evaluarlo desde la perspectiva del doble diamante de la competitividad internacional propuesta por Moon et al. (1998, y Moon y Lee (2004: 138.

  14. Factores que determinan el uso de innovaciones tecnológicas en la ganadería de doble propósito en Sinaloa, Mexico

    Directory of Open Access Journals (Sweden)

    Venancio Cuevas Reyes

    2013-01-01

    Full Text Available El objetivo del presente estudio fue analizar los factores que inciden en la adopción de innovaciones por parte de productores de bovinos de doble propósito. Mediante selección no estocástica de 121 productores que participaron en el programa Soporte de la SAGARPA en el periodo 2010-2011, se identificaron por medio de estadísticos de posición, tres tipos de productores con diferente uso de tecnología (alto, medio y bajo; por medio de un análisis de varianza y una prueba de Ji-cuadrada se determinaron las variables que inciden en la implementación de sus prácticas tecnológicas. El uso promedio de innovaciones resultó significativo (P<0.05 en la diferenciación de los grupos de productores, en tanto las variables significativas (P<0.05 para su descripción fueron el número de vacas adultas, la distancia de la unidad de producción al municipio, el método de reproducción, el tipo de ordeño y los años de recibir asistencia técnica. Se concluye que la tipología realizada permitió identificar tres tipos de productores de acuerdo al uso de innovaciones tecnológicas; por grupo los factores que influyen en la adopción de innovaciones fueron aquéllos relacionados con variables de escala, localización, tecnológicos y de innovación. Los resultados pueden servir para reorientar y planificar programas de transferencia tecnológica en sistemas de producción de doble propósito.

  15. El Paleolítico Medio en el Cáucaso Meridional: la Cueva Doble (Valle de Tsutskhvati, República de Georgia

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    Fernando DÍEZ MARTÍN

    2010-08-01

    Full Text Available El presente trabajo recoge los principales resultados derivados de la intervención arqueológica acometida entre los años 2002 y 2003 en el Valle de Tsutskhvati (República de Georgia, principalmente centrados en una nueva ronda de excavaciones en la Cueva Doble. Los estudios estratigráficos, tecnológicos, tafonómicos y polínicos permiten arrojar nuevos datos, complementarios a los obtenidos en la cercana cueva de Ortvale Klde, sobre las comunidades neandertales que habitaron la región del Cáucaso meridional, uno de los entornos geográficos en los que sobrevivieron los últimos representantes de esta especie. Mientras que los completos trabajos arqueológicos abordados en la cueva de Ortvale Klde han permitido contar con un amplio programa de datación para la presencia neandertal en dicha cavidad, el resto de los yacimientos del mismo periodo siguen presentando una cierta indefinición contextual. A pesar de ello, se acepta que la presencia neandertal en el valle de Tsutskhvati debió situarse en el mismo marco temporal que en Ortvale Klde. Aunque tanto la Cueva Doble, motivo de esta publicación, como la famosa Cueva del Bronce carecen hoy en día de contextos cronológicos fiables, es necesario señalar que estos yacimientos del valle de Tsutskhvati vienen siendo recurrentemente citados en el debate sobre el fin de los neandertales y la llegada de las primeras comunidades sapiens a la región caucásica. Es por ello por lo que la información novedosa aquí presentada (los últimos trabajos en Tsutskhvati se llevaron a cabo en la década de 1970 posee un indudable interés, a pesar de las limitaciones cronológicas, para ampliar nuestro conocimiento sobre este importante capítulo de la Prehistoria europea.

  16. EFECTO DE LA EPOCA DEL PARTO Y DEL SISTEMA DE AMAMANTAMIENTO SOBRE LA EFICIENCIA REPRODUCTIVA DE VACAS DEL SISTEMA DOBLE PROPÓSITO

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    *Roger Salgado

    2003-12-01

    Full Text Available Se evaluó el efecto de la época del parto y el sistema de amamantamiento en la eficiencia reproductiva postparto devacas manejadas bajo el sistema de doble propósito en una finca ubicada en el municipio de Chinú Departamento decórdoba. Se utilizaron 60 vacas multíparas homogéneas en el número de partos, producción de leche, manejo, sanidad,ambiente y alimentación. Se distribuyeron en cuatro tratamientos utilizando un diseño completamente al azar, con unarreglo factorial 2x2 con dos épocas (sequía y lluvia y dos sistemas de amamantamiento (tradicional y restringido con 15repeticiones por grupo experimental: T1 – Sequía x tradicional – T2 – sequía x restringido - T3 – Lluvia x tradicional – T4– Lluvia x restringido. La época no tuvo efecto (P>0.05 sobre la tasa de gestación (50% para la época seca vs 40% parala época de lluvia ni los días abiertos (132.13 + 65.35 vs 138.71 + 60.21 para la época de sequía y lluvia respectivamente.Se encontró un efecto del amamantamiento sobre la tasa de gestación y los días abiertos (P<0.05, siendo mayorpara el amamantamiento restringido (70% y 109.00 + 52.93 días comparado con el tradicional (20% y 161.87 + 60.14días. Por otra parte, se determinó un efecto en la frecuencia acumulada de días abiertos, hallándose los mejoresresultados en los tratamientos T2 y T4 (P<0.016. El estudio permitió concluir que el amamantamiento reduce elanestro postparto y mejora la eficiencia reproductiva en bovinos manejados bajo el sistema de doble propósito.

  17. La Primera Muestra de Contabilidad por Partida Doble en la Catedral de Toledo. El Manual y Mayor del Racionero Gutierre Hurtado (1535-1536

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    Susana Villaluenga de Gracia

    2005-06-01

    Full Text Available En la línea de las investigaciones desarrolladas sobre la contabilidad de las instituciones eclesiásticas en España, este trabajo estudia la que en el siglo XVI fue considerada la sede más rica de la Cristiandad después de Roma, la Catedral de Toledo. Su elevado estatus pudo ser una cuestión significativa para influir en el proceso de desarrollo de su sistema de gestión y en la adopción de prácticas contables novedosas. Además, dentro de la catedral existían beneficiados con aptitudes para dar solución a cualquier cuestión económica. Más concretamente, uno de ellos, el racionero Gutierre Hurtado, fue el autor de la primera muestra de contabilidad por partida doble en la catedral de Toledo y la primera muestra conocida, hoy por hoy, en el mundo para una entidad eclesiástica. En este trabajo se muestran algunos fragmentos sobre su vida y cometido; y los aspectos generales y especiales que caracterizan el método contable usado por este racionero. Para ello, examinaremos los documentos que se conservan en el Archivo de la Catedral de Toledo Palabras clave: Contabilidad eclesiástica, partida doble, catedral de Toledo.Through an approach close to the research of the studies on accounting of the religious organizations in Spain, this paper intends to study an entity that was considered the richest see of Christendom after Rome in the 16th century, the Cathedral of Toledo. Its highest level could possibly have been a significant element in the development of sophisticated management and accounting practices in this church. In addition, acting at the cathedral of Toledo, there were men who were capable to manage any economic question. More specifically, one of these prebendaries, Gutierre Hurtado, was the author of the first accounting demonstration for double entry in the cathedral of Toledo and the first one that is known, at the present time, in a religious organization on the world. This paper will show some features of all what we

  18. Distintas o iguales: las diferencias en el trabajo doméstico de las parejas de doble ingreso entre las uniones libres y los matrimonios

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    Landy Sánchez Peña

    2016-01-01

    Full Text Available La brecha de género en el trabajo doméstico ha sido ampliamente estudiada en México, mostrando gradientes por nivel socioeconómico y diferencias asociadas a la participación de las mujeres en el trabajo extradoméstico. En este artículo indagamos en qué medida ambos procesos dan forma al reparto del trabajo doméstico entre parejas de doble provee - dor que difieren por tipo de unión. Basamos el análisis empírico en la ENIGH 2010 utilizando modelos de regresión. Nuestros resultados sugieren que la brecha de género en el trabajo doméstico es menor en las parejas en unión libre en comparación con las pa - rejas casadas, aun tomando en cuenta efectos de selección. Entre las primeras, la brecha se reduce mayormente conforme aumenta el ingreso, de modo que las parejas en unión libre y de alto ingreso representan el arreglo más equitativo en la división sexual del trabajo no remunerado. Ello se debe a que las mujeres en unión libre dedican menos tiempo al trabajo doméstico que las casadas, mientras que entre los varones no observamos diferencias.

  19. El doble y el espejo en Cisne negro (Darren Aronofsky, 2010. The double and the mirror in Black Swan (Darren Aronofsky, 2010

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    Ana España

    2012-04-01

    Full Text Available Con su último largometraje, Cisne negro (2010, Darren Aronofsky propone una nueva visión de su cine de la obsesión, a través del proceso de autodestrucción de una bailarina, sumergida en su afán por encarnar el papel principal en una obra de ballet.El presente artículo trata de abordar el tratamiento que el director realiza del fenómeno del doble, como vehículo sobre el que se sustenta la crisis obsesiva de la protagonista, atendiendo a sus diversas representaciones y objetivos en la configuración final del texto. With his latest film, Black Swan (2010, Darren Aronofsky offers a new vision of his obsession cinema, through the process of self-destruction of a dancer, immersed in her effort to embody the lead role in a ballet performance. This current article aim to attend the director treatment of the double phenomenon as a vehicle on which rests the obsessive crisis of the protagonist, according to their several representations and objectives in the final configuration of the text.

  20. UNA APROXIMACIÓN TEÓRICA A LA VALORACIÓN DEL DOBLE AJUSTE EN EL DISEÑO DE LA ESTRATEGIA DE RECURSOS HUMANOS

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    García Carbonell, Natalia

    2013-05-01

    Full Text Available Tradicionalmente la literatura ha considerado la necesidad del doble ajuste, vertical y horizontal, de la estrategia de recursos humanos en las organizaciones. Su importancia estratégica ha sido demostrada en buena parte de los estudios empíricos planteados. Sin embargo, la complejidad de este proceso requiere de un análisis más profundo que permita identificar los elementos que lo hacen posible. En el presente trabajo, partiendo de la revisión de la literatura de las perspectivas de investigación en dirección estratégica de recursos humanos y del concepto «fortaleza del sistema de recursos humanos» propuesto por Bowen y Ostroff (2004, discutimos los 3 factores que integran dicho concepto y su relación con el ajuste del sistema. Como consecuencia de ello, definimos 3 proposiciones teóricas que explican la vinculación entre ambas dimensiones y la fortaleza del sistema.

  1. Identificación paramétrica en lazo cerrado de sistema de accionamiento neumático para cilindro de doble efecto

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    Oscar Caldas Flautero

    2013-01-01

    Full Text Available Los modelos matemáticos que permiten comprender un sistema y predecir o simular su comportamiento suelen presentar inconvenientes cuando se cuenta con poca información a priori o se desconocen los parámetros físicos. Por esa razón, en este trabajo se presenta la identificación de sistemas como estrategia para abordar la construcción de modelos dinámicos complejos, proponiendo soluciones para tratar el comportamiento no-lineal de un sistema neumático, representado por un actuador de doble efecto y un par de válvulas proporcionales para el control de la presión de alimentación y el caudal. Se presenta una aproximación almodelomatemático para determinar el orden del sistema, la identificación en lazo abierto y lazo cerrado y la comparación entre modelos de procesosARX yARMAX, con diferente orden, para concluir con simulaciones comparativas entre la respuesta del sistema real y la del identificado.

  2. ESTUDIO INTRAPAÍSES DE LA COMPETITIVIDAD GLOBAL DESDE EL ENFOQUE DEL DOBLE DIAMANTE PARA PUERTO RICO, COSTA RICA Y SINGAPUR

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    Castro-Gonzáles, Segundo

    2014-09-01

    Full Text Available Muchos investigadores y economistas han argumentado que los estudios de competitividad del WEF e IMD muestran limitaciones en pequeñas economías,más aún cuando estas tienen características distintas. El objetivo de esta investigación es estudiar la competitividad de 3 peque˜nas economías: Puerto Rico, Costa Rica y Singapur. El modelo del doble-diamante de competitividad resulta útil a la hora de llevar a cabo esta tarea. La información procede de organismos internacionales. Los resultados muestran que Singapur goza de un mayor nivel de competitividad global comparado con Puerto Rico y Costa Rica. Concluimos que Puerto Rico y Costa Rica lucen equilibrados en competitividad, porque internacionalmente Puerto Rico aventaja a Costa Rica en 3 determinantes: condiciones de factores, condiciones de la demanda e industrias relacionadas y de apoyo; mientras que localmente Costa Rica es más competitivo que Puerto Rico en 3 factores domésticos: condiciones de factores, condiciones de demanda y estrategia de las firmas.

  3. cobalt (ii), nickel (ii)

    African Journals Online (AJOL)

    DR. AMINU

    Department of Chemistry Bayero University, P. M. B. 3011, Kano, Nigeria. E-mail: hnuhu2000@yahoo.com. ABSTRACT. The manganese (II), cobalt (II), nickel (II) and .... water and common organic solvents, but are readily soluble in acetone. The molar conductance measurement [Table 3] of the complex compounds in.

  4. The Possibility of Making a Quantitative Study of the Precipitin Reaction by Gamma-Radioactive Tracers; Possibilite d'une Etude Quantitative de la Reaction de Precipitation par Marquage a l'Aide d'Emetteurs Gamma; Vozmozhnost' kolichestvennogo opredeleniya reaktsii osazhdeniya s pomoshch'yu gamma-radioaktivnykh indikatorov; Estudio Cuantitativo de la Reaccion de Precipitacion con Ayuda de Indicadores Gamma

    Energy Technology Data Exchange (ETDEWEB)

    Bonev, L.; Todorov, S.; Robev, S. [Nauchno-Issledovatel' skij Institut Radiologii i Radiacionnoj Bezopasnosti, Sofija (Bulgaria)

    1965-10-15

    The paper presents the first results of the quantitative determination of the precipitin reaction (formation of an antigen-antibody complex) by labelling the precipitating components with gamma-radioactive tracers which do not chemically interact with albuminous molecules. As tracers it is possible to use chrome-manganese and nickel-copper compounds, whose tendency to hydrolyze permits the fixation of the radioactive tracer on the antigen and antibody respectively. The radioactivity of the components is determined by a multichannel pulse-height analyser. The results obtained show that the precipitation curve, plotted on the basis of radiometric data, closely corresponds to the curve plotted by the well-known quantitative methods used to determine albumin. The paper discusses the possibilities of using the method described. (author) [French] Les auteurs communiquent les premiers resultats d'une etude quantitative qu'ils ont faite de la reaction de precipitation (formation du complexe antigene-anticorps) en marquant les composants du precipites avec des emetteurs gamma qui ne reagissent pas chimiquement avec les molecules d'albumine. Pour le marquage, on peut utiliser des composes de chrome/manganese ou de fer qui subissent facilement l'hydrolyse et assurent de ce fait la fixation de la substance radioactive sur l'antigene et, partant, sur l'anticorps. La radioactivite des composants est determinee a l'aide d'un selecteur d'amplitudes a plusieurs canaux. Les resultats montrent que la courbe de precipitation obtenue avec les donnees radiometriques concorde parfaitement avec celle que l'on obtient par les methodes quantitatives connues servant au dosage de l'albumine. Les auteurs discutent les possibilites d'application de la methode etudiee. (author) [Spanish] Los autores presentan los primeros resultados de un estudio cuantitativo de la reaccion de precipitacion (formacion del complejo antigeno-anticuerpo) que efectuaron marcando los componentes de precipitacion con

  5. Double-balloon enteroscopy: a descriptive study of 50 explorations Enteroscopia de doble balón: estudio descriptivo de 50 exploraciones

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    E. Pérez-Cuadrado

    2006-02-01

    Full Text Available Aim: to evaluate the utility of double-balloon enteroscopy for small-bowel disease. Design: a prospective study of 50 consecutive enteroscopies performed from December 2004 to July 2005 to analyze diagnoses and treatments. Patients: 44 patients (33 had undergone a previous capsule endoscopy with indications for obscure digestive hemorrhage, angiodysplasia, Peutz-Jeghers syndrome, ulcer, suspected Crohn's disease, tumors, and refractory celiac disease. Results: we carried out enteroscopy studies in 44 patients by the oral route and, in 6 additional patients, by both the oral and anal routes. We reached the ileon with the oral route in all cases but one (jejunal stenosis, and in 4 cases out of 7 with the anal route, with an average duration of 73 minutes. We found angiodysplasia in 19 cases, as well as NSAID-related enteropathy, Crohn's disease, diverticulosis, and Waldenström's disease. We performed biopsies in 31% of cases with diagnoses of adenocarcinoma, lymphangiectasia secondary to tumor in celiac disease, and Whipple's disease. We treated 19 patients with angiodysplasia (1 to 20 synchronous lesions with argon, and 4 patients with polyps using polipectomy (sporadic polyps or Peutz-Jeghers syndrome. A retained capsule in one patient with stenosis was removed. Conclusions: double-balloon enteroscopy is a useful and effective technique in the diagnosis and treatment of small intestine diseases, thus complementing capsule endoscopy. More studies are needed to analyze its impact on the management of this condition.Objetivo: valorar la utilidad de la enteroscopia de doble balón en enfermedades de intestino delgado. Diseño: estudio prospectivo descriptivo de 50 enteroscopias consecutivas (diciembre 2004 a julio 2005, analizando diagnóstico y terapéutica. Pacientes: cuarenta y cuatro pacientes (33 con cápsula endoscópica previa con hemorragia digestiva oculta o lesiones detectadas mediante cápsula (angiodisplasias, pólipos, úlceras

  6. Métodos didácticos y sistemas de aprendizaje: teneduría de Libros y Partida Doble en Inglaterra (siglos XVI-XIX

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    Juan Lanero Fernández

    2006-12-01

    Full Text Available El presente trabajo realiza una revisión bibliográfica de los tratados pedagógicos de teneduría de libros en el Reino Unido desde el siglo XVI, cuando se incorporó la partida doble, hasta finales del siglo XIX.Los rasgos didácticos más significativos de los primeros 250 años de docencia en teneduría de libros se resumen en la importancia que se concede al Libro Diario. Con el desarrollo de la partida doble se hizo habitual ampliar el significado de los términos débito y crédito más allá de la connotación personal original y aplicarlos a objetos inanimados y conceptos abstractos. La exposición mediante la personificación de cuentas consistía en un aprendizaje memorístico apoyado en normas y versificación.La disputa entre los que eran partidarios del Diario y aquellos que preferían el Mayor como libro de enseñanza, no era otra cosa más que la traducción del conflicto entre el enfoque memorístico y el racional de la teneduría de libros. Los seguidores del enfoque del Mayor salieron doblemente reforzados: significaba una enseñanza más racional y un cambio en las exigencias de los negocios.El Diario perdió su posición dominante cuando, a mediados del siglo XIX, surgió una teoría alternativa a la personificación de las cuentas. Se trata de la teoría de la propiedad de las cuentas y se ocupa del significado de éstas desde el punto de vista del propietario.The present paper makes a bibliographic checking of the pedagogic treatises of bookkeeping in the United Kingdom since 16th Century, when the double-entry system was introduced, up to the end of 19th Century.The most outstanding didactic feature of the first 250 years of bookkeeping teaching could be summed up in the prevalent role the Journal was given. With the development of the double-entry system, it became common extending the meaning of the terms debit and credit beyond the original personal connotation and applying them to inanimate objects and abstract

  7. Corrección de cicatrices postraqueostomía mediante doble colgajo adipofascial opuesto Double opposite adipofascial flap for the correction of post-tracheostomy scars

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    S. Llanos

    2012-12-01

    Full Text Available La traqueostomía es un procedimiento frecuentemente para asegurar una vía aérea permeable en casos de intubación prolongada, trauma facial severo y neoplasias de cabeza y cuello. Tras la extubación, el defecto se deja cerrar por segunda intención con el resultado de una cicatriz defectuosa, de pobre resultado estético y con frecuentes alteraciones funcionales asociadas, como por ejemplo disfagia. Se han descrito muchas técnicas para la corrección de estas cicatrices, sin embargo, algunas no corrigen los defectos funcionales y otras requieren una gran disección y movilización de los tejidos. Proponemos una técnica basada en dos colgajos adipofasciales de base opuesta y dependientes de circulación random realizada en 7 pacientes con cicatriz defectuosa postraqueostomía con buenos resultados estéticos y funcionales.Tracheostomy is a frequently used procedure to secure a viable airway in cases such as prolonged intubation, facial trauma and head and neck cancer. After decannulation, the defect is left to heal by secondary intention resulting in a poor aesthetic and functional outcome. Many techniques have been described to correct this defects, however they don´t correct functional defect and some of them require large and complex dissections and manipulation of subdermal tissues. In order to correct these defects we present a technique using a doble opposite adipofascial flap based on random irrigation. This technique has been used in 7 patients with good aesthetical and functional results.

  8. LA MECÁNICA DEL DOBLE SALTO MORTAL ATRÁS EN LA SALIDA DE PARALELAS ASIMÉTRICAS

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    E. Laterza

    2010-07-01

    Full Text Available

    Este artículo muestra un estudio biomecánico cinematográfico de la salida de doble mortal atrás agrupado en paralelas asimétricas por cuatro gimnastas durante el campeonato mundial celebrado en Sttugart en 1989. Los resultados muestran el instante del despegue, para todos los gimnastas; los instantes posteriores (unos 62 milisegundos de media y el instante en el que el centro de masas (CM alcanza su máxima velocidad de componente vertical (max. Vy. En los últimos 62 ms previos al despegue, mientras el CM recorría los últimos 14º de rotación sobre la banda superior, se observó una reducción de un 5% en la velocidad vertical del CM. A pesar de ello, durante ese corto período de tiempo el gimnasta obtenía, gracias al impulso de reacción vertical de la banda, un gran incremento de 0.15men la máxima altura obtenida por elCMdurante la fase de vuelo. Esto incrementa el importante rol que desempeñan las acciones ejecutadas en los instantes inmediatamente previos al despegue. Si el despegue hubiese ocurrido 62 ms antes, en el instante en que se obtiene la máxima Vy, el momento angular de los gimnastas podría haber sido superior, permitiendo una velocidad de rotación más elevada. Sin embargo, el ángulo de barrido en la fase aérea podría haber sido mayor y el tiempo de vuelo levemente menor (-1%.

     

  9. Evaluación del comportamiento hidráulico en un reactor anaerobio de doble cámara (RADCA

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    Nancy Rincón

    2011-01-01

    tales como cortos circuitos, zonas muertas y recirculación interna afectan su desempeño. En esta investigación se evaluó el comportamiento hidráulico de un reactor anaerobio de doble cámara (RADCA de 534,5 L (cámara 1=305 L y cámara 2= 229,5 L como innovación tecnológica de los reactores UASB. El RADCA fue alimentado con agua residual municipal (ARM de la ciudad de Maracaibo, Venezuela; cada una de las cámaras fueron inoculadas con lodo granular (20% v/v proveniente de una cervecería local. La evaluación hidráulica se realizó en la fase líquida y en operación utilizando Li+ (LiCl como trazador aplicado de forma instantánea en el afluente a tiempo de retención hidráulico teórico (TRHt de 6 horas; 3,4 h en la cámara 1 y 2,6 para la cámara 2. El RADCA describió un flujo pistón en ambas cámaras y una eficiencia hidráulica cercana a la unidad (1 indicando una presencia casi nula de zonas muertas. La eficiencia de remoción de la DQO total (DQOT del RADCA se mantuvo en el rango de 59,77% a 74,64% con un promedio de 68,26%. Para las cámaras 1 y 2 la eficiencia promedio fue 60,4 y 20,94% con una producción de biogás (L/h de 2,768 y 0,541 respectivamente.

  10. Suplementación con balanceado comercial en crías vacunas lactantes bajo sistema doble propósito

    Directory of Open Access Journals (Sweden)

    Esperanza Prieto M.

    2010-12-01

    Full Text Available Objetivo. Evaluar el efecto que ejerce la suplementación con alimento balanceado sobre la ganancia diaria de peso (GDP y el consumo de alimento (CA en terneros lactantes y su impacto económico en una empresa ganadera manejada bajo un sistema vacuno de doble propósito, en el municipio de Sincé, Sucre–Colombia. Materiales y métodos. Se suplementaron 14 crías (6 machos y 8 Hembras entre 3 y 5 meses de edad, con alimento balanceado comercial al 1.5% del peso vivo (Tratamiento 1 y se compararon con un grupo igual sin suplementar (Tratamiento Testigo, durante 113 días en época de lluvias. La GDP y CA fueron evaluados mediante prueba t de Student. Se determinó Relación beneficio: costo y rentabilidad. Resultados. La GDP de las crías lactantes fue afectada de manera altamente significa por la suplementación con alimento balanceado comercial (p0.05, encontrándose el mismo resultado para el consumo de alimento balanceado (p>0.05 explicando así la no diferencia estadística en la GDP entre sexos. El análisis económico confirmó que la estrategia alimenticia es viable al presentarse una relación B:C del 1.1. y una rentabilidad trimestral del 9.27%. Conclusiones. La suplementación de terneros lactantes es una práctica viable, que permite obtener ganancias adicionales.

  11. Adoption of Double Entry Bookkeeping in Mexico and Spain Adopción de la partida doble en México y España

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    Bernardo Bátiz-Lazo

    2012-12-01

    Full Text Available There are conflicting and even contradictory claims as to when exactly double entry bookkeeping arrived to New Spain as well as its diffusion during the colonial era. Although we fail to present evidence from Mexican private enterprise, we address the apparent contradictions while putting forward the idea that the history of "modern" accounting practice in Latin America should be framed by developments in its former colonial power. Our conclusion is that the history of Latin American accounting should be wary of extrapolating everyday practice by interpreting bibliographic material and proceed to pay greater attention to the appropriation of accounting technology through the examination of surviving company documents as well as informal educational practices amongst organizations based in Spain and its colonies.Las fuentes y la información disponible son contradictorias respecto al origen y difusión de la partida doble durante la colonización española y tras la independencia. Aunque no ofrecemos evidencia sobre actividades en el ámbito de la empresa privada, este artículo se propone acotar dicho debate y obtener nuevas conclusiones al proponer que la historia de la contabilidad "moderna" en América Latina debería estar enmarcada por los acontecimientos en la metrópoli. Nuestra conclusión es que la historia de la contabilidad en América Latina debe proceder con el examen de fuentes y prácticas de las organizaciones y no llegar a conclusiones únicamente basadas en el examen de libros de texto.

  12. Comportamiento a la Corrosión del Acero API X70 Soldado por el Proceso de Doble Arco Sumergido Inmerso en Diferentes Medios Corrosivos

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    Omar Francisco Montes

    Full Text Available Resumen Los aceros API X70 son aplicados en fabricación y construcción de tuberías para el transporte de hidrocarburos, sin embargo, a un lapso de tiempo se degradan debido al medio ambiente al cual están expuestos; influyendo en la velocidad y tipo de corrosión sobre las superficies del metal base (MB, zona afectada por el calor (ZAC y zona de fusión (ZF. A fin de conocer y evaluar la susceptibilidad a la corrosión en uniones del acero API X70 sometido a diferentes medios corrosivos, varias pruebas se llevaron a cabo por el proceso de soldadura de doble arco sumergido (DSAW, por sus siglas en inglés, las cuales fueron inmersas en diferentes electrolitos: Cloruro de Sodio (NaCl al 3,5% y Agua (H2O a temperatura ambiente para conocer su comportamiento. Se utilizaron técnicas electroquímicas de ruido electroquímico (RE y curvas de polarización cíclica (CPC para obtener velocidad y tipo de corrosión producida en cada una de las muestras analizadas, incluyendo las tres zonas: MB, ZAC y ZF. Además, se utilizaron técnicas de caracterización como microscopía óptica (MO y microscopía electrónica de barrido (MEB para el análisis superficial. La mayoría de las soldaduras presentan corrosión mixta, con mayores velocidades de corrosión en 3,5% de NaCl.

  13. LOS LIBROS MANUAL Y MAYOR DE LA CAJA DE LA SACRISTÍA DE LA CATEDRAL DE VALENCIA: UNA ADAPTACIÓN DE LA PARTIDA DOBLE (1546-1555

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    Inmaculada Llibrer Escrig

    2016-07-01

    Full Text Available Este trabajo analiza dos libros de cuentas: un manual y un mayor, empleados para registrar las transacciones del efectivo depositado en la caja fuerte de la Catedral de Valencia. Siguiendo a de Roover, la mera existencia de los libros manual y mayor no es suficiente para afirmar su pertenencia a la partida doble, por lo que fue necesario revisar todos los elementos característicos de este método y compararlos con los que se encontraban en estos libros. También, se fijó como objetivo conocer los motivos que determinaron el modo de registro empleado, pretendiendo conocer la naturaleza de la información que este sistema aportaba y por qué no se respetaron algunas reglas de la partida doble. El sistema contable aprovechó las ventajas del método contable introduciendo varias innovaciones como: los asientos de ajuste sólo en el libro mayor, un doble asiento de apertura y la incorporación, previa a la apertura, del detalle de todas las transacciones que, consecuencia de los ajustes en los libros anteriores, conducían al saldo de apertura. El estudio permite inferir la concepción económica que el cabildo tenía de su organización y el rol que el sistema contable jugó dentro de la organización dado que la información era de carácter interno y confidencial.

  14. Efecto del régimen de defoliación sobre la producción de grano en trigo doble propósito Effect of the defoliation regime on grain production in dual purpose wheat

    OpenAIRE

    N. Peralta; P.E. Abbate; A. Marino

    2011-01-01

    La utilización de cultivos de trigo con doble propósito contribuiría a realizar un uso más eficiente de los recursos ambientales. En Balcarce (Buenos Aires, Argentina) se estableció un cultivo de trigo (Triticum aestivum, cv. Baguette 20) sembrado en fecha temprana (17 de marzo de 2006) para comparar la producción de forraje obtenida con tres regímenes de defoliación: T1 (tres defoliaciones), T2 (dos defoliaciones) y TG (sin defoliaciones). En esos tres tratamientos y en otro no defoliado sem...

  15. Efectos de cruzamiento para producción de leche y características de crecimiento en bovinos de doble propósito en el trópico húmedo

    OpenAIRE

    Sergio Iván Román-Ponce; Felipe de Jesús Ruiz-López; Hugo H. Montaldo; Rita Rizzi; Heriberto Román-Ponce

    2013-01-01

    Con el objetivo de evaluar los efectos de cruzamiento en tres subpoblaciones de ganado bovino cruzados de doble propósito en el trópico húmedo se utilizaron 5,040 lactancias y pesajes corporales al nacimiento [4,429] y pesos ajustados a 205 [3.878], 365 [3,017] y 540 [2,276] días (PN, P205, P365 y P540, respectivamente) de Cebú (CE) y sus cruzas con Holstein (HS), Suizo Pardo (SP) y Simmental (SM). Los efectos aditivos directos de raza (PG), heterocigocidad (HT) y pérdidas por recombinación (...

  16. Metodología del cálculo directo de la estructura principal de un petrolero de doble casco mediante la aplicación de un programa de elementos finitos

    OpenAIRE

    Bustos Pérez, Alfonso

    2011-01-01

    Analizar el procedimiento de cálculo de la estructura de un buque petrolero de doble casco realizado empleando un programa de cálculo de estructuras de acuerdo con: Las reglas de construcción de la Asociación Internacional de Sociedades de Clasificación (IACS). Los procedimientos de cálculo directo, en concreto el método de elementos finitos. Escuela Técnica Superior de Ingeniería Naval y Oceánica

  17. Litiasis única en vesícula doble tratada con ondas de choque extracorpórea Single lithiasis in double gallblader treated with extracorporeal shock waves

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    Domingo Pérez González

    2004-06-01

    Full Text Available La vesícula biliar doble es una anomalía congénita poco frecuente. Su diagnóstico puede realizarse con ultrasonido y colecistografía. Se presenta una paciente de 27 años de edad, con antecedentes de intolerancia a las grasas y cólicos biliares a repetición, con vesícula duplicada; exteriormente fundida y dos conductos císticos independientes que desembocan en el hepatocolécodo, con un cálculo único, de 12 mm de diámetro, retrotransparente y 0 unidades Houndfield, ubicado en el cuello de la vesícula más desarrollada. Se aplicaron 2 259 ondas de choque extracorpóreas de 20,4 kilovoltios, generadas por el principio electromagnético; en una sesión de litroticia. Se detuvo fragmentación completa del cálculo. El tratamiento fue ambulatorio. La paciente se reincorporó a su vida laboral a las 24 horas. Durante la expulsión de los fragmentos tuvo varias crisis de dolor que cedieron con analgésicos orales. A los 6 meses, la vesícula afectada se encontraba libre de fragmentos y funcional. No existió complicación y hasta el momento se mantiene asintomáticaDouble gall bladder is an uncommon congenital abnormality. It may be diagnosed by ultrasound and cholecystography. It is reported the case of a 27-year-old patient with history of intolerance to fats and repeated biliary cholics, with duplicated gallbladder externally fused, and two independent cystic ducts flowing to the hepatocholedoco with a single calculus of 12 mm of diameter, retrotransparent and 0 Houndfield units, located in the neck of the more developed gallbladder. 2 259 extracorporeal shock waves of 20.4 kilovolts generated by the electromagnetic principle were applied in a lithotripsy session. The complete fragmentation of the calculus was stopped. The treatment was ambulatory. The patient reincorporated to her working life at 24 hours. During the expulsion of the fragments, she had several pain crises that were resolved with oral analgesics. Six months later, the

  18. El doble carácter de la educación indígena: reproducción y resistencia

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    Alberto Padilla Arias

    2002-01-01

    Full Text Available Las reflexiones contenidas en este trabajo son el resultado de la interpretación de los datos producto de la investigación sobre el tema y se enmarcan dentro de la concepción epistemológica denominada: la cultura como categoría crítica, que ha sido desarrollada por diversos intelectuales latinoamericanos, en particular por Paulo Freire. El método de trabajo ha sido esencialmente de carácter documental. En este punto, a principios del siglo XXI, la investigación ha venido a evidenciar que tanto la educación formal como la no formal, —de los que nosotros llamaremos en adelante pueblos originarios o indígenas— en general, continúa sirviendo a la reproducción de los moldes culturales hegemónicos, tanto en su versión pública como privada. Sin embargo, por otra parte, la educación informal es la que ha permitido, a la mayoría de los pueblos indígenas y sus culturas, ejercer sus mecanismos de resistencia cultural, apoyando su supervivencia, no solamente en México, sino en cualquier punto del planeta dentro del nuevo esquema de regionalización-globalización. Es por ello que se puede afirmar que la educación indígena de hecho tiene un doble carácter como reza el título: reproducción y resistencia. Todo ello teniendo en cuenta múltiples factores que intervienen en los contextos nacionales con su naturaleza multicultural. En el trabajo se analizan las condiciones de diversos pueblos originarios o “indígenas” que han logrado sobrevivir con sus propias culturas, gracias a que han hecho uso de este proceso conservador autónomo, educación informal; así como la propuesta de Paulo Freire.

  19. Subiendo el listón: ¿como responde Finlandia al doble reto de la Educación secundaria?

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    Pasi Sahlberg

    2006-01-01

    Full Text Available La Educación Secundaria ha estado en el centro del desarrollo de las políticas sociales y el sistema educativo en Finlandia durante las últimas tres décadas. Después de crear, en los años 70, una escuela comprensiva que dura nueve años y es igual para todos los alumnos, los objetivos de la política educativa han sido siempre que todos los que dejan la escuela básica puedan tener acceso a la educación superior que elijan. Hoy en día, el sistema educativo finlandés está considerado como un estándar internacional de la buena calidad, junto con su condición de equidad y acceso a todo el sistema. En este artículo, analizo el doble reto -o sea, calidad de y acceso a la educación secundaria- a través de tres dimensiones: la tasa de transición de la Educación Secundaria Básica a la Educación Secundaria Superior, tasas de finalización de la Educación Secundaria y el aprendizaje de los alumnos. Luego, argumento que Finlandia ha sido capaz de crear un sistema de Educación Secundaria que funciona bien a un coste razonable, porque ha utilizado estrategias de reforma educativa basadas en (1 una visión a largo plazo de una buena Educación Secundaria para todos, (2 mejorar la calidad de la Educación Primaria para todos los niños, (3 diseñar un sistema de intervención temprana y asesoramiento y consejo educativo en los centros educativos de Primaria y Secundaria, (4 ayudar a todos los alumnos a tener éxito en la transición de Primaria a Secundaria y crear caminos de segundas oportunidades para incrementar las tasas de éxito, y (5 promover la construcción de la capacidad lateral en la que las escuelas y los municipios aprenden unos de otros. La experiencia en Finlandia sugiere que mejorar la calidad de la Educación Secundaria requiere políticas sostenibles y liderazgo, cultivando profesionalidad y confianza en todo el sistema educativo, y acercamientos inteligentes al currículum y a la responsabilidad.

  20. Propuesta para la adopción de tecnología en el sistema bovino de doble propósito

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    H. Suárez

    2012-01-01

    Full Text Available El presente trabajo tiene por objetivo proponer aspectos fundamentales para la adopción tecnológica en el sistema bovino de doble propósito. Esta propuesta plantea que el proceso de innovación tecnológica se inicia con la descripción del objetivo de la unidad de producción y su situación actual, con énfasis en el área que se pretenda aplicar. Enseguida, se debe identificar, correctamente, la necesidad que se pretende resolver y la alternativa tecnológica más pertinente. Cualquiera que sea el factor que detone la necesidad de tecnificación, la inversión realizada debe ser rentable. Después, se identifican los aspectos de flexibilidad de la alternativa tecnológica, para descubrir las posibilidades de retirarla y sustituirla por otra; o bien, modificarla según las nuevas necesidades de la unidad de producción. Luego, se debe verificar que el productor tenga interés genuino en adoptar la tecnología y que dispone de los recursos financieros necesarios. En este caso, se advierte que no porque la opción tecnológica haya funcionado bien en otra unidad de producción, también lo hará en ésta y viceversa. Además, se requiere que el productor realice la completa adopción de la alternativa tecnológica, que se capacite el personal que la pondrá en marcha y que se lleven a cabo las adecuaciones pertinentes en todo el sistema de producción. Una vez adoptada la alternativa, se deben evaluar los impactos generados. Se concluye que la innovación corresponde a un proceso de aprendizaje modulado en el tiempo, y que la pertinencia de los recursos tecnológicos debe ser objeto de análisis y actualización continua.

  1. La doble jerarquía del desarrollo económico y gobierno local en Chile: El caso de la salmonicultura y los municipios chilotes

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    Arnt Fløysand

    2010-08-01

    Full Text Available A partir de los procesos recientes de reestructuración regional y desarrollo de la provincia de Chiloé, Chile, las comunidades tradicionales se ven enfrentadas a la “glocalización” de su base económica y de sus aspectos socioculturales. Se señala el punto de vista de las municipalidades en relación a los impactos generados por la industria salmonera y a las facultades con que cuenta el nivel local para manejarlos. Se demuestra que la salmonicultura en Chiloé no parece conducir a un ejemplo exitoso de reestructuración espacial, desarrollándose un sistema de innovación global, sin que los actores locales estén integrados e infuyan sobre las decisiones tomadas en los territorios sobre los cuales ejercen un rol y responsabilidad democrática. Se ve claramente la existencia de una doble jerarquía entre responsabilidades político-administrativas locales y el aparato público-privado para fomentar el desarrollo económico local, lo que debilita las estructuras locales democráticas en la búsqueda del crecimiento económico nacional.Given recent processes of regional restructuring and provincial development in Chiloé, Chile, traditional communities have witnessed the 'glocalisation of their economic base and socio-cultural aspects of their lives. Te article focuses on the municipal position in terms of the impacts generated by salmon aquaculture and the faculties that they exercise at the local level to manage them. It reveals that the salmon aquaculture industry in Chiloé does not appear to provide a successful example of spatial restructuring, developing a global innovation system without the full integration of local actors in decision-making in the territories over which they have a democratic role and responsibility. Tere is clear evidence of a double hierarchy between political-administrative responsibilities and the public-private apparatus for local economic development, which weakens local democratic structures in the

  2. El silencio entre los profesionales de la salud, un arma de doble filo: a double-sided argument Silence among health care professionals

    Directory of Open Access Journals (Sweden)

    Juan M. Leyva-Moral

    2008-03-01

    Full Text Available Justificación: el silencio dentro del lugar de trabajo se asocia con diversas causas, siendo el miedo, la desvinculación y la cooperación las principales razones que llevan al empleado a permanecer en silencio. Objetivo: explorar el significado que tiene el silencio entre los profesionales de la salud. Metodología: estudio cualitativo basado en la Teoría Fundamentada. Se utilizó la entrevista semi-estructurada y un cuestionario con preguntas abiertas. Resultados: tres categorías emergen del análisis de los textos: a Silencio como "un arma de doble filo" ya que se le asocian efectos positivos pero también negativos. b "prevención de consecuencias venideras" explora las situaciones y los motivos en los que los participantes consideran que es mejor permanecer en silencio. C "¡Yo no me callo!" aparece como resultado del análisis de aquellos participantes que siempre dicen lo que piensan. Conclusión: el silencio en el ámbito laboral genera sentimientos perjudiciales a nivel individual, tales como baja autoestima, frustración o rabia, mientras que a nivel grupal puede producir mayor cohesión por no haber discusiones de ningún tipo. No obstante, la calidad de la producción puede verse mermada ya que las personas se dedican a "seguir la corriente".Justification: silence in the workplace is associated with many causes, such as fear, deattachement and cooperation. Aim: to explore the meaning of silence among the healthcare professionals. Methodology: qualitative stuyd based on Grounded Theory. Semi-structured interviews were used as well as a questionnaire with open ended questions. Findings: three main domains emerge from the data anlysis: a Silence as a double-sided argument, b prevention of future consequences; c I don’t keep silent! Conclusion: silence within the workplace generates negative feelings at an individual level, such as low self-steem, frustration or anger. In a grupal level, silence can produce higher cohesi

  3. Mamoplastia de aumento en doble plano: una alternativa subfascial en la optimización de las indicaciones Breast augmentation in dual plane: a subfascial alternative towards optimizing indications

    Directory of Open Access Journals (Sweden)

    O. D. Ventura

    2008-12-01

    Full Text Available Proponemos el Doble Plano en la cirugía de aumento mamario como una alternativa a las indicaciones de uso del plano subfascial. Presentamos 30 casos en los que se utilizan variantes de la técnica en doble plano y discutimos sus indicaciones y ventajas a la vez que describimos detalles de la técnica. Este método consiste en crear un bolsillo donde el implante queda cubierto por el músculo pectoral solamente en su tercio superior y por la fascia en el resto. Las proporciones de estos componentes se ajustan según las características anatómicas de cada caso. Las indicaciones de la técnica son las mamoplastias primarias, y más específicamente, las secundarias con ptosis, encapsulamiento o ripling.We propose Dual Plane tecnique in augmentative mammoplasty as an alternative for individual adjustment when using the subfascial plane. Thirty cases are presented in which a variation of the dual plane technique is used. Its indications, advantages and surgical highpoints are discussed. This method consists on a pocket where the implant is covered by the pectoral muscle only on its upper pole, and by the fascia on the rest of it. The percentages of this components are adjusted to the anatomical characteristics of each case. Indications of this technique are primary mammoplasties, and more precisely secondary ones with ptosis, contractile capsule or ripling.

  4. Expectativas en la cirugía de triple procedimiento versus doble procedimiento quirúrgico en afecciones corneales Expectations of triple procedure versus double procedure surgery in corneal diseases

    Directory of Open Access Journals (Sweden)

    Emilio Kuri Cienfuegos

    2007-12-01

    Full Text Available Se realizó un estudio retrospectivo y descriptivo con el propósito de evaluar el comportamiento de los procedimientos quirúrgicos doble y triple, en pacientes operados de enfermedades de la córnea en el Servicio de Oftalmología del Hospital Clínicouirúrgico “Hermanos Ameijeiras” de Ciudad de La Habana, desde julio de 2003 hasta diciembre de 2005. La muestra estuvo constituida por 45 ojos operados de trasplante de córnea entre enero de 1988 y junio de 2003 en el Servicio de Oftalmología del Hospital Clínicoquirúrgico “Hermanos Ameijeiras” de Ciudad de La Habana. Las variables estudiadas fueron: edad, sexo, antecedentes personales oculares, enfermedad corneal previa, retrasplante, viabilidad del injerto corneal, complicaciones ocurridas durante la cirugía y después de esta, agudeza visual prequirúrgica y posquirúrgica, error de cálculo de la lente intraocular y de refracción. Se obtuvo como resultado: predominio del sexo masculino (51,1%, edad promedio 60,27 años, la enfermedad ocular asociada más frecuente en el doble y triple procedimiento fue el glaucoma con 22,7 % y 26,1 % respectivamente, la enfermedad corneal más común fue la distrofia epitelio-endotelial de Fuchs en ambos procederes (72,7 % y 52,2 %; no tuvieron complicaciones transquirúgicas 90,9 % y 95,5 %, respectivamente. Las complicaciones posquirúrgicas fueron de 9,1 % en el doble procedimiento y de 26,1 en el triple. La opacidad corneal posoperatoria se presentó en el doble proceder en 9,1 % y en el triple en 17,4 %. Hubo más retrasplantes en el triple procedimiento (17,4 %. El error refractivo final en el doble procedimiento presentó mayor cantidad emétropes y menos hipermétropes que el triple, mientras que en relación con los miopes se encontró, solo en el doble procedimiento, mejor agudeza visual en el doble procedimiento. El error de cálculo de lente intraocular fue mayor en el triple procedimiento.A retrospective descriptive study was

  5. La resistencia a tracción indirecta del hormigón por doble punzonamiento. Influencia del tamaño máximo del árido y de la excentricidad

    Directory of Open Access Journals (Sweden)

    Perepérez Ventura, Bernardo

    1985-10-01

    Full Text Available After reminding the interest, or the need, to know the concrete tensile strength, and having analyzed critically normal test methods, it /s briefly described the test method of indirect tension by "double punch test", proposed by W. F. Chen. The experimental results obtained on three different concretes, two among them of a common density and a third with expanded clay as coarse aggregate, are shown. It has been proved that for normal density concretes, the tensile strength by "double punch test" has little sensibility to the variation of the aggregate maximum size, opposite to which it takes place in the splitting test, and the error of the centred of the "punch" has a minimum influence on the results, till very high eccentricities are reached. In conclusion, indirect tension test by double punch test is simple, practical and reproducible, responding to the needs to the needs of a commercial routine.Tras recordar el interés o la necesidad de conocer en ocasiones ¡a resistencia a tracción del hormigón y realizar un análisis crítico de los métodos de ensayo al uso, se describe brevemente el método de ensayo de tracción indirecta por "doble punzonamiento" propuesto por W. F. Chen. Se presentan los resultados experimentales obtenidos sobre tres hormigones distintos, dos de densidad ordinaria y un tercero con arcilla expandida como árido grueso. Se ha comprobado que, para hormigones de densidad normal, la resistencia a tracción por "doble punzonamiento" es muy poco sensible a la variación del tamaño máximo del árido, contrariamente a lo que sucede con el ensayo brasileño, y que el error de centrado de los "punch" tiene una influencia mínima sobre los resultados hasta que se alcanzan excentricidades muy altas. Se concluye que el ensayo de tracción indirecta por "doble punzonamiento" es simple, práctico y reproducible, respondiendo a las necesidades de una rutina comercial.

  6. DISEÑO A DOBLE CIEGO Y EL USO DE PLACEBOS PSICOLÓGICOS EN INVESTIGACIÓN DE RESULTADOS EN PSICOTERAPIA: ES POSIBLE? UN ESTUDIO PILOTO DE VIABILIDAD

    Directory of Open Access Journals (Sweden)

    EDUARDO H. CAZABAT

    2014-01-01

    Full Text Available El uso de placebos y diseños a doble ciego ha cumplido un papel crucial en la investigación clí- nica en Medicina. Su aplicación a la investigación de resultados en psicoterapia ha sido controver- sial. Muchos autores niegan la posibilidad de su aplicación debido a que el terapeuta debería co- nocer la condición del procedimiento aplicado. Se presenta detalladamente un estudio en el que se uti - lizó un procedimiento placebo correspondiente a EMDR ( Eye Movement Desensitization and Re- processing - Desensibilización y Reprocesa- miento por Movimientos Oculares con un Dise- ño Experimental de Caso Único. Los objetivos fue- ron los siguientes: poner a prueba la viabilidad de la implementación de un placebo de tipo psico- lógico en EMDR y la aplicación de un diseño a do- ble ciego en el estudio de resultados en EMDR. Se seleccionaron tres pacientes que sufrían de Trastorno por Estrés Postraumático. Se estable- ció una línea de base de la sintomatología pre- sentada. Luego, los sujetos fueron asignados ale atoriamente a tres condiciones experimenta- les durante tres sesiones: (a aplicación del pro- tocolo EMDR sin ningún tipo de estimulación con auriculares en silencio (placebo 1, (b apli-cación del protocolo EMDR con estimulación bilateral auditiva simultánea (no alternada (pla- cebo 2 y (c aplicación del protocolo estándar de EMDR con estimulación auditiva bilateral al- ternada (tratamiento activo. Tales procedimientos resultaron igualmente creíbles para el paciente y para el terapeuta. Es to permitió el desarrollo de un diseño de investiga- ción a doble ciego para la investigación de resul- tados en EMDR. Finalmente, se discuten algunas posibles aplicaciones e implicancias de la intro- ducción del uso de placebos psicológicos y diseño a doble ciego en la investigación en psicoterapia.

  7. Copper (II)

    African Journals Online (AJOL)

    CLEMENT O BEWAJI

    Valine (2 - amino - 3 – methylbutanoic acid), is a chemical compound containing .... Stability constant (Kf). Gibb's free energy. ) (. 1. −. ∆. Mol. JG. [CuL2(H2O)2] ... synthesis and characterization of Co(ii), Ni(ii), Cu (II), and Zn(ii) complexes with ...

  8. Hydrology in a mediterranean mountain environment. The Vallcebre research catchment (north eastern Spain) II. Rainfall-runoff relationships and runoff processes; Hidrologia de un ambiente Mediterraneo de montana. Las cuencas de Vallcebre (Pirineo Oriental) II. Relaciones precipitacion-escorrentia y procesos hidrologicos

    Energy Technology Data Exchange (ETDEWEB)

    Latron, J.; Solar, M.; Nord, G.; Llorens, P.; Gallart, F.

    2009-07-01

    Hydrological response and runoff processes have been studied in the Vallcebre research basins (North Eastern Spain) for almost 20 years. Results obtained allowed to build a more complete perceptual model of the hydrological functioning of Mediterranean mountains basins. On a seasonal and monthly scale, there was no simple relationship between rainfall and runoff depths. Monthly rainfall and runoff values revealed the existence of a threshold in the relationship between rainfall and runoff depths. At the event scale, the storm-flow coefficient had a clear seasonal pattern. The effect of the water table position on how rainfall and runoff volumes relate was observed. Examination of soil water potential and water table dynamics during representative floods helped to identify 3 types of characteristic hydrological behaviour during the year. Under dry conditions, runoff was generated essentially as infiltration excess runoff in low permeable areas, whereas saturation excess runoff dominated during wetting-up and wet conditions. During wetting-up transition, saturated areas resulted from the development of scattered perched water tables, whereas in wet conditions they were linked to the rise of the shallow water table. (Author) 8 refs.

  9. Identificación e implementación de paquetes tecnológicos en ganadería vacuna de doble propósito: Caso Manabí-Ecuador

    OpenAIRE

    Torres, Yenny; Rivas, José; De Pablos-Heredero, Carmen; Perea, José; Toro-Mujica, Paula; Angón, Elena; García, Antón

    2014-01-01

    El avance en los sistemas ganaderos se asocia a la implementación de tecnologías en la producción y a la mejora de sus ingresos. El objetivo del presente estudio fue la identificación e implementación de paquetes tecnológicos y su relación con los resultados productivos en vacuno de doble propósito de la provincia de Manabí, Ecuador en dos zonas climáticas: el Bosque seco tropical y el húmedo tropical. Se agrupan 25 tecnologías en seis paquetes tecnológicos (PT) seleccionadas mediante una met...

  10. Identificación e implementación de paquetes tecnológicos en ganadería vacuna de doble propósito. Caso Manabí-Ecuador

    OpenAIRE

    Yenny Torres; José Rivas; Carmen De Pablos-Heredero; José Perea; Paula Toro-Mujica; Elena Angón; Antón García García

    2014-01-01

    El avance en los sistemas ganaderos se asocia a la implementación de tecnologías en la producción y a la mejora de sus ingresos. El objetivo del presente estudio fue la identificación e implementación de paquetes te cnológicos y su relación con los resultados productivos en vacuno de doble propósito de la provincia de Manabí, Ecua dor en dos zonas climáticas: el Bosque seco tropical y el húmedo tropical. Se agrupan 25 tecnologías en seis paquetes tecnológicos (PT) seleccionadas mediante una m...

  11. Identificación e implementación de paquetes tecnológicos en ganadería vacuna de doble propósito. Caso Manabí-Ecuador

    Directory of Open Access Journals (Sweden)

    Yenny Torres

    2014-01-01

    Full Text Available El avance en los sistemas ganaderos se asocia a la implementación de tecnologías en la producción y a la mejora de sus ingresos. El objetivo del presente estudio fue la identificación e implementación de paquetes te cnológicos y su relación con los resultados productivos en vacuno de doble propósito de la provincia de Manabí, Ecua dor en dos zonas climáticas: el Bosque seco tropical y el húmedo tropical. Se agrupan 25 tecnologías en seis paquetes tecnológicos (PT seleccionadas mediante una metodología cualitativa y participativa. Se realizaron entrevistas en una muestra de 41 explotaciones para evaluar la implementación de los paquetes tecnológicos, mediante estadística desc riptiva, correlaciones de Sperman y regresiones múltiples. Se obtienen los mayores niveles de implementación en los paquetes de salud animal (76 %, uso de la tierra y alimentación (55 %. El PT de alimentación se correlacion a ( P <0.01 con el PT de instalaciones (0.711 y de reproducción (0.774. Los PT explican 30 % de la variabilidad de la producción de leche, que es debida al uso de la tierra en el Bosque seco y a la salud animal en el Bosque húmed o. Esta investigación genera resultados preliminares respecto a la idententificación e implementación de los principales paquetes tecnológicos en la ganadería vacuna de doble propósito de Manabí – Ecuador, que están en pr oceso de mejora aunque sin perder los atri butos que lo caracterizan.

  12. Revisión de la técnica de doble torsión y del método experimental en materiales cerámicos

    Directory of Open Access Journals (Sweden)

    de Aza, A. H.

    2001-04-01

    Full Text Available The double torsion test configuration has many advantages for the evaluation of subcritical crack growth parameters and fracture toughness. These advantages are: crack-length independence, four-point loading, simple specimen geometry and ease of precraking. However , a number of unresolved questions need to be answered about the double torsion specimen and experimental techniques involved in its use before this testing can be adopted as a standard. In this paper these questions are addressed, the analyses of the compliance and KI for the double torsion configuration are revised, and the load relaxation test in double torsion is examined in order to define the conditions under which de data are valid.

    La técnica de doble torsión tiene numerosas ventajas a la hora de evaluar el crecimiento subcritico de grieta en un material cerámico. Estas ventajas, entre otras, son: independencia del factor de intensidad de tensiones, KI, con respecto a la longitud de grieta, configuración de carga en cuatro puntos y facilidad de prefisuracion. Sin embargo, aun hoy en día, algunas preguntas sobre esta técnica quedan sin respuesta. En el presente trabajo se hace referencia a estas cuestiones, se revisan las expresiones analíticas de la flexibilidad y el factor de intensidad de tensiones, KI, propuestas en la literatura científica para la configuración particular de la doble torsión, y se examina el método de trabajo experimental, ensayo de relajación de carga, tratando de definir las condiciones en las cuales los datos obtenidos son validos.

  13. Estimación de parámetros genéticos para características productivas y reproductivas en los sistemas doble propósito del trópico bajo colombiano

    Directory of Open Access Journals (Sweden)

    A. P. Galeano

    2010-01-01

    Full Text Available Con el objetivo de estimar los componentes de varianza, las heredabilidades, repetibilidades y correlaciones genéticas y fenotípicas para la producción de leche por lactancia (PL, el peso al destete (PD, el intervalo entre partos (IEP y el Índice de Vaca (IV, de las hembras bovinas manejadas en los sistemas de producción de doble propósito del trópico bajo colombiano, se analizaron los registros productivos y reproductivos de 1.687 vacas registradas en la Asociación Colombiana de Criadores de Ganado en Doble Propósito (Asodoble, durante el periodo comprendido entre 1998 y 2007. Se empleó un modelo animal mixto que incluyó los efectos fijos del grupo contemporáneo (finca-sexo-época-año, la composición racial, y la duración de la lactancia como covariable; así como los efectos genéticos aleatorios del animal, el medio ambiente permanente y el residual. Las heredabilidades estimadas para IEP (0,04 y PD (0,11 fueron bajas, y moderadas para PL (0,35 e IV (0,24, respectivamente. La repetibilidad estimada para IEP fue baja (0,08, y para PL (0,41 e IV (0,31 moderada; en el caso de PD este valor fue igual a la heredabilidad (0,11. Las correlaciones genéticas y fenotípicas obtenidas entre PL y PD con respecto a IEP fueron positivas, y se determinó una asociación genética negativa entre PL y PD. Los resultados demostraron que el IV es un buen indicador, desde el punto de vista genético, de la eficiencia productiva y reproductiva de los animales manejados en estos sistemas productivos.

  14. Estimación de parámetros genéticos para características productivas y reproductivas en los sistemas doble propósito del trópico bajo colombiano

    Directory of Open Access Journals (Sweden)

    A. P. Galeano

    2010-06-01

    Full Text Available Con el objetivo de estimar los componentes de varianza, las heredabilidades, repetibilidadesy correlaciones genéticas y fenotípicas para la producción de leche por lactancia(PL, el peso al destete (PD, el intervalo entre partos (IEP y el Índice de Vaca (IV,de las hembras bovinas manejadas en los sistemas de producción de doble propósitodel trópico bajo colombiano, se analizaron los registros productivos y reproductivosde 1.687 vacas registradas en la Asociación Colombiana de Criadores de Ganado enDoble Propósito (Asodoble, durante el periodo comprendido entre 1998 y 2007. Seempleó un modelo animal mixto que incluyó los efectos fijos del grupo contemporáneo(finca-sexo-época-año, la composición racial, y la duración de la lactancia comocovariable; así como los efectos genéticos aleatorios del animal, el medio ambientepermanente y el residual. Las heredabilidades estimadas para IEP (0,04 y PD (0,11fueron bajas, y moderadas para PL (0,35 e IV (0,24, respectivamente. La repetibilidadestimada para IEP fue baja (0,08, y para PL (0,41 e IV (0,31 moderada; en el casode PD este valor fue igual a la heredabilidad (0,11. Las correlaciones genéticas y fenotípicasobtenidas entre PL y PD con respecto a IEP fueron positivas, y se determinóuna asociación genética negativa entre PL y PD. Los resultados demostraron que el IVes un buen indicador, desde el punto de vista genético, de la eficiencia productiva yreproductiva de los animales manejados en estos sistemas productivos.

  15. CARACTERIZACIÓN SOCIOECONÓMICA Y TECNOLÓGICA DE LOS AGROECOSISTEMAS CON BOVINOS DE DOBLE PROPÓSITO DE LA REGIÓN DEL PAPALOAPAN, VERACRUZ, MÉXICO

    Directory of Open Access Journals (Sweden)

    Julio Vilaboa-Arroniz

    2008-12-01

    Full Text Available El objetivo del presente trabajo fue caracterizar los componentes tecnológicos y socioeconómicos en los agroecosistemas con bovinos de doble propósito de la Región del Papaloapan, Veracruz, México. Se diseño y aplicó entrevistas semi-estructuradas a productores en las Asociaciones Ganaderas Locales y en ranchos ganaderos de los 21 municipios de la región objeto de estudio. Las variables incluidas fueron sociales, técnicas y de comercialización. El tamaño de muestra fue de 405 productores que representan el 4% del total de los ganaderos de la región. Se utilizó el análisis cluster, estadística descriptiva y tablas de contingencia. El análisis cluster, de acuerdo a las variables consideradas, permitió caracterizar a los productores en tres grupos: tradicional, de transición y empresarial. La edad para estos grupos de ganaderos fue 53±13, 54±15 y  56±12 años, y las cargas animal fueron 42.8±38.9, 154.1±88.3 y 123.8±93.5, respectivamente. En general, la finalidad zootécnica fue ganado doble propósito (86.9%, con pastoreo extensivo a libre pastoreo (98% como el sistema predominante y un patrón racial de la cruza Suizo x Cebú (79.8% como el más representativo.

  16. (II) complexes

    African Journals Online (AJOL)

    activities of Schiff base tin (II) complexes. Neelofar1 ... Conclusion: All synthesized Schiff bases and their Tin (II) complexes showed high antimicrobial and ...... Singh HL. Synthesis and characterization of tin (II) complexes of fluorinated Schiff bases derived from amino acids. Spectrochim Acta Part A: Molec Biomolec.

  17. Comparative study of pneumocystography, positive contrast cystography and double contrast cystography in dogs; Estudio comparativo entre la neumocistografia, la cistografia de contraste positivo y la cistografia de doble contraste en perros

    Energy Technology Data Exchange (ETDEWEB)

    Thibaut, J.; Parada, E. [Universidad Austral de Chile, Valdivia (Chile); Vargas, L.; Deppe, R.; Born, R.

    1997-07-01

    un ayuno de 24 horas y dos enemas antes de tomar las radiografias. Los perros fueron anestesiados con tiopental sodico en dosis de 20 mg/kg e.v. La introduccion del medio de contraste se efectuo a traves de una sonda uretral. En la primera serie se realizo la neumocitografia introduciendo aire a la vejiga en dosis de 10 ml/kg. En la segunda serie se efectuo la cistografia de contraste positivo introduciendo Hypaque M-60% diluido, aportando 100 mg de y do por mi, en dosis de 10 ml/kg. Para la cistografia de doble contraste se introdujeron 10 ml de Hypaque M-60% diluido, en concentracion de 150 mg de yodo por ml. Luego por la misma sonda se introdujo aire en dosis de 10 ml/kg. Seguidamente, para cada tecnica fueron tomadas las radiografias en ambas proyecciones, al minuto y a los 10 minutos. Las placas radiograficas de cada serie se analizaron en base a los factores de densidad, contorno y tamano radiografico. La densidad radiografica en la neumocistografia, cistografia de contraste positivo y doble contraste fue predominantemente baja, alta e intermedia, respectivamente. El contorno radiografico se observo predominantemente liso en las tres tecnicas. Con respecto al tamano se aprecio una disminucion del alto y un aumento en el largo y el ancho, a los 10 minutos de iniciada cada tecnica respecto a lo registrado al minuto. Al comparar las tres tecnicas realizadas, se aprecio que la que detalla en mejor forma la mucosa vesical es la cistografia de doble contraste. La neumocistografia entregaria mejores resultados sobre cuerpos radioopacos y la cistografia demuestra mejor la posicion de la vejiga.

  18. Enteroscopia de doble balón para el diagnóstico de las enfermedades del intestino delgado en los niños Double-balloon enteroscope for the diagnosis of small intestine diseases in children

    Directory of Open Access Journals (Sweden)

    Héctor Rubén Hernández Garcés

    2010-12-01

    Full Text Available INTRODUCCIÓN. La enteroscopia de doble balón (EDB es un nuevo método que permite la visualización completa de la luz del intestino delgado. La presente investigación se realizó con el objetivo de evaluar la experiencia en la realización de esta técnica en niños atendidos en el Servicio de Endoscopia Pediátrica del Instituto Cubano de Gastroenterología. MÉTODOS. Se realizó un estudio descriptivo retrospectivo para evaluar la seguridad, eficacia y extensión de exploración de la enteroscopia de doble balón en el diagnóstico de las enfermedades del intestino delgado en niños. Para ello fueron estudiados 8 pacientes con examen físico y complementarios negativos de enfermedad del intestino delgado, atendidos entre noviembre de 2008 y octubre de 2009. En 3 de los 8 pacientes existía la sospecha clínica y radiológica de enfermedad de Crohn; en otros 3, la sospecha de tumor de intestino delgado y los restantes fueron atendidos por presentar sangramiento oculto de origen intestinal. RESULTADOS. Se practicaron 7 procedimientos por vía retrógrada y 2 por vía anterógrada; a un paciente se le realizó enteroscopia total empleando ambas vías. La duración media de la EDB por vía oral fue de 62,5 min, con un intervalo de 60 a 65 min y por la vía anal fue de 50,7 min, con intervalo de 45 a 60 min. En todos los casos se logró identificar alguna lesión que explicara los síntomas. CONCLUSIÓN. La enteroscopia de doble balón es un método seguro para el diagnóstico de enfermedades del intestino delgado en los niños.INTRODUCTION. The double balloon enteroscope (DBE is a new method allows the whole visualization of the small intestine lumen. The objective of present research was to assess the experience in the carrying out of this technique in children seen in the Pediatric Endoscopy Service of the Cuban Institute of Gastroenterology. METHODS. A retrospective and descriptive study was conducted to assess the accuracy, effectiveness

  19. Dual renin-angiotensin system blockade plus oral methylprednisone for the treatment of proteinuria in IgA nephropathy Doble bloqueo del sistema renina-angiotensina más metilprednisona oral para el tratamiento de la proteinuria en la nefropatía por IgA

    Directory of Open Access Journals (Sweden)

    Hernán Trimarchi

    2007-10-01

    Full Text Available Renin-angiotensin system inhibition is a widely accepted approach to initially deal with proteinuria in IgA nephropathy, while the role of immunosuppressants remains controversial in many instances. A prospective, uncontrolled, open-label trial was undertaken in patients with biopsy-proven IgA nephropathy with proteinuria > 0.5 g/day and normal renal function to assess the efficacy of a combination treatment of angiotensin converting enzyme inhibitors plus angiotensin receptor blockers enalapril valsartan coupled with methylprednisone to decrease proteinuria to levels below 0.5 g/day. Twenty patients were included: Age 37.45 ± 13.26 years (50% male; 7 patients (35% were hypertensive; proteinuria 2.2 ± 1.86 g/day; serum creatinine 1.07 ± 0.29 mg/dl; mean follow-up 60.10 ± 31.47 months. IgA nephropathy was subclassified according to Haas criteria. Twelve patients (60% were class II; seven (35% were class III and one (5% class V. All patients received dual reninangiotensin system blockade as tolerated. Oral methylprednisone was started at 0.5 mg/kg/day for the initial 8 weeks and subsequently tapered bi-weekly until the maintenance dose of 4 mg was reached. Oral steroids were discontinued after 24 weeks (6 months of therapy but renin-angiotensin inhibition remained unchanged. At 10 weeks of therapy proteinuria decreased to 0.15 ± 0.07 g/day (P El doble bloqueo del sistema renina-angiotensina con inhibidores de la enzima convertidora de angiotensina junto a bloqueadores del receptor tipo I de angiotensina II es aceptado como tratamiento en la proteinuria de la nefropatía por IgA, ya que el rol de los inmunosupresores continúa siendo controvertido. Estudio prospectivo, no controlado, abierto para pacientes con nefropatía por IgA con proteinurias >0.5 g/día y creatininas séricas <1.4 mg/dl, para evaluar la eficacia de tratamiento de enalapril más valsartán asociado a metilprednisona vía oral para disminuir las proteinurias a <0.5 g

  20. Síntesis de microcápsulas de poliurea a partir de aminas renovables, mediante doble emulsificación Synthesis of polyurea microcapsules from renewable amines by double emulsification

    Directory of Open Access Journals (Sweden)

    Paula Mazo

    2011-01-01

    Full Text Available En este trabajo se realizó la microencapsulación de un perfume comercial mediante una doble emulsificación, la coraza de poliurea fue sintetizada por la reacción de Lisina con dos diisocianatos comerciales, uno aromático y otro alifático. En la síntesis se evaluó el efecto que tiene la relación molar amina:diisocianato y el tipo de emulsificante. Se optimizó el tamaño de partícula utilizando un diseño factorial 32 y análisis de superficie de respuesta, las variables fueron: cantidad de alcohol polivinílico y la relación de fase dispersa a fase continua. Las microcápsulas se caracterizaron mediante: análisis de calorimetría diferencial de barrido (DSC, espectroscopía infrarroja (IR, microscopía electrónica de barrido (SEM y tamaño medio de partícula. La doble emulsificación permite un mayor rendimiento de encapsulación del perfume, las micropartículas presentan un menor tamaño de partícula cuando: se emplea diisocianato aromático, un aumento de coloide protector (PVA y una disminución de la fase dispersa.This paper reports on the microencapsulation of a commercial perfume by means of a double emulsification, where the polyurea shell was synthesized by the reaction of lysine with two commercial di-isocyanates (aromatic and aliphatic. In the synthesis the factors evaluated were the amine:di-isocyanate molar ratio and the type of emulsifier. The particle size was optimized using a 3² factorial design and response surface analysis, with the following variables: amount of polyvinyl alcohol and the relationship of the disperse phase to continuous phase. The microcapsules were characterized using differential scanning calorimetry analysis (DSC, infrared spectroscopy (IR, scanning electron microscopy (SEM and mean particle size. The double emulsification allows for a greater yield in the encapsulation of perfume. Furthermore, the microparticles have a smaller particle size when the aromatic di-isocyanate was used, also

  1. COMPARACIÓN MEDIANTE UN ESTUDIO PROSPECTIVO Y ALEATORIZADO DE DOS MÉTODOS DE REPOSICIÓN EN UNIDADES DE ENFERMERÍA EN HOSPITALIZACIÓN POLIVALENTE DE AGUDOS CON ALMACENAMIENTO MEDIANTE DOBLE CAJETÍN

    Directory of Open Access Journals (Sweden)

    José Luis Bernal

    2017-01-01

    Full Text Available Fundamentos: Los sistemas de almacenamiento mediante doble ca - jetín aumentan la satisfacción del personal de enfermería y disminuyen los inventarios, pero no se conocen las implicaciones de que sea el personal de logística quién determine la necesidad de reposición. El objetivo de este estudio fue evaluar si encomendar dicha responsabilidad a este personal en unidades de hospitalización polivalente de agudos entraña un mayor riesgo de pedidos extraordinarios. Métodos: Se realizó un estudio experimental, prospectivo aleatorizado con enmascaramiento. Los pedidos extraordinarios se consideraron variable de respuesta; los correspondientes a valoraciones del personal de logística se incluyeron en el grupo de intervención y los del personal de enfermería, en el de control. La concordancia entre observadores se analizó con el método de Bland- Altman; la diferencia entre grupos, con la U de Mann-Whitney y se calculó la incidencia acumulada de pedidos extraordinarios y su riesgo relativo. Resultados: La cantidad media solicitada por el personal de logística y el de enfermería fue 29,9 (DE:167,4 y 36 (DE:190 unidades respectiva - mente, la diferencia media entre observadores fue 6,11 (DE:128,95 uni - dades y no se encontraron diferencias significativas entre los grupos (p = 0,430. La incidencia de pedidos extraordinarios fue 0,64% en el grupo de intervención y 0,15% en el de control; el riesgo relativo, 2,31 (0,83 – 6,48 y el número de casos necesarios para un pedido extraordinario, 516. Conclusión: El riesgo de pedidos extraordinarios en unidades de hos - pitalización con almacenamiento mediante doble cajetín no está asociado con la categoría profesional del personal que identifica las necesidades de reposición.

  2. Rotura del Bíceps Distal. Evaluación de resultados con técnica de doble fijación. [Distal biceps rupture: evaluation of results with double fixation technique

    Directory of Open Access Journals (Sweden)

    Miguel Ángel Capomassi

    2013-11-01

    Full Text Available In­tro­duc­ción La rotura del bíceps distal es una lesión poco frecuente producida por la aplicación de una fuerza excéntrica sobre el codo flexionado. El objetivo de este trabajo es analizar los resultados obtenidos para la reinserción del bíceps distal mediante técnica de doble fijación con botón de anclaje cortical y tornillo interferencial de biotenodesis a través de una incisión anterior única. Materiales­ y­ Métodos Entre agosto de 2008 y febrero de 2013, registramos 19 casos de rotura del bíceps distal tratados quirúrgicamente por vía anterior limitada. Los 17 últimos casos consecutivos fueron tratados con doble fijación utilizando botón extracortical y tornillo de biotenodesis, y forman parte del estudio. Todos eran hombres, con una mediana de la edad de 41 años (rango 27-59. Los pacientes fueron evaluados con el Cuestionario DASH y el Puntaje Subjetivo/Objetivo de Andrews y Carson, y la fuerza de flexión y supinación se controló con la escala del British Medical Research Council modificada por Mackinnon y Dellon (M0-M5. Resultados El cuestionario DASH arrojó un valor mediano de 1,7 (0-5,83 y el de Andrews y Carson, de 195 (170-200 para el total; con 15 resultados excelentes y 2 buenos. Todos consiguieron una fuerza M5 para flexión y supinación de antebrazo. El seguimiento tuvo una mediana de 12 meses (4-32. En dos pacientes, se registraron complicaciones, ambas con recuperación ad íntegrum. Conclusión La técnica descrita ha demostrado ser confiable y eficaz, y permitió lograr resultados satisfactorios y una baja tasa de complicaciones.

  3. Evaluación de pasturas de Brachiaria decumbens solas o asociadas con Centrosema acutifolium con ganado de doble propósito: II. Evaluación de la productividad animal

    Directory of Open Access Journals (Sweden)

    Ramírez Náder Luis Miguel

    1991-12-01

    Full Text Available

    En la segunda parte de esta investigación se evaluaron el cambio de peso de las vacas, y sus crías; la producción de leche; y los índices de preñez al finalizar el ensayo. Se utilizaron 4 praderas de 4 ha cada una, dos establecidas con B. decumbens solo, y dos con B. decumbens asociado, las cuales fueron pastoreados en forma alterna cada 21 días, asignándose una carga fija de 1.5 animales/ha. Se emplearon 24 vacas con sus crías (15 de tipo racial Hartón del Valle y 9 del tipo racial Mestizo, divididas aleatoriamente en 2 grupos en un ensayo de tipo "continuo", en el cual los animales pastorearon siempre en la misma pastura  (tratamiento. La producción total de leche, ajustada (incluyendo los días de no ordeño y corregida por covarianza de la producción acumulada durante los tres primeros días de ordeño, fue significativamente mayor (24% de mayor producción al 5.6% de probabilidad, en la pastura asociada (680 kg, lactancia media de 236 días, que en la pastura sola (550 kg, lactancia media de 241 días. El cambio de peso vivo posparto de las vacas, medido después de 210 días de lactancia y corregido por covarianza del peso inicial, indicó una diferencia altamente significativa (P < 0.003 a favor de la pastura asociada, (466 vs 429 kg. El cambio de peso vivo de las crías, no presentó diferencias significativas. En la pastura asociada las vacas presentaron mayor porcentaje de preñez (58.3% vs 33.3% y la totalidad de las vacas no preñadas presentaban actividad ovárica. Se estimó una diferencia de tres meses adicionales de intervalo entre partos en las vacas que pastorearon la pastura sola. Trabajo de investigación realizado dentro del programa colaborativo entre el Fondo Ganadero del Valle del Cauca y el Centro Internacional de Agricultura Tropical CIAT. La investigación, se hizo acreedora al Premio Nacional a la "Mejor Investigación en Bovinos", otorgado por el Bando Ganadero en el 18° Congreso Nacional de Medicina Veterinaria y de Zootecnia, realizado en agosto de 1992.

    In the second part of this research were evaluated the influence of pastures on the animal production productivity in a dual purpose cattle. Four fields of 4 ha. each one were used; two of them had B. decumbens alone and the other two B. decumbens plus C. acutifolium CIAT 5568. Each pasture was grazed in alternating way, using 21 days of occupation and 21 days of rest There was a fixed animal charge of 1,5 animal units per ha. At the beginning of the experiment there were 24 cows with their calves from the dual-prupose type: 15 from the Native "Harton of Valley" breed and 9 from "Mestizo" racial type (Creole and Zebu cattle crossed with european milking cows. Animals were split random in 2 groups in a "continuous" type of assay in which the animals always were located m the same pasture (treatment. The total milk production analysis was made by mean of an adjustment (including the no milking days. With those data adjusted and corrected by covariance analysis, in which the covariable was the sum of the milk production obtained during the first three days of milking, there was a statistical significant difference (P > 0.056 favoring the associate pasture with a milk production (680 kg, 236 days of lactation, in relation with the pasture alone (550 kg, 241 days of lactation, having a 24% of difference the cows grazed in the associate pasture. The body weight change in cows after birth corrected by covariance analysis (was made closer to the 210 days of lactation taking as co-variable the cows initial weight. There was a highly significant difference (P > 0.003 favoring the associate pasture (466 vs. 429 kg. In body weight change in calves there was no statistical difference. The cows located in the associate pasture, besides of having a greater pregnancy percentage in relation to the cows in the pure pasture (58.3 vs. 33.3% and met ovarian activity in alls non pregnant cows. Also was estimated a difference in a larger calving intervals near of three aditional months with the cows grazed in pure pasture.

  4. Efecto de la edad al primer parto y los días abiertos en un bovino doble propósito sobre la huella hídrica y de carbono

    Directory of Open Access Journals (Sweden)

    Raúl Andrés Molina Benavides

    2016-12-01

    Full Text Available La actividad ganadera contribuye con la emisión de gases de efecto invernadero (EGEI y el consumo de agua fresca (CA. Por ende, el objetivo de esta investigación fue estimar el efecto de la edad al primer parto (EPP y los días abiertos (DA en un bovino doble propósito en pastoreo, trópico bajo colombiano, sobre las EGEI y el CA. Esta estimación se logró integrando 4 metodologías existentes: Dinámica de Sistemas, Large Ruminal Nutrition System, Huella de carbono y Huella hídrica. Durante toda su vida, 91 meses, desde el nacimiento hasta el sacrificio, la vaca produjo 5.879 kg de leche -4 lactancias-, emitió 16.066 kg CO2eq y consumió 12.804.569 L de agua. Al disminuir la EPP en un mes, el CA y  las EGEI se redujeron en 123.156 l y 155 kg CO2eq, respectivamente. Cuando se  mermaron los DA en 21, las EGEI bajaron 647 kg CO2eq y el CA se redujo en 455.455 L. Parámetros reproductivos como la EPP y los DA tienen una fuerte influencia sobre la dinámica del animal en el hato,  afectando su productividad, emisiones de gases de efecto invernadero y consumo de agua. 

  5. Efecto de la densidad de población y la fertilización en el cultivo de soya (Glycine max (L Merr de doble producción (forraje y grano

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    Forero P. Jaime A.

    1986-03-01

    Full Text Available En el estudio se utilizó un diseño de parcelas divididas, correspondiendo la fertilización a las parcelas principales y a las sub parcelas las tres densidades de población. La soya puede utilizarse como planta de doble fin. Con una población de 360000 plantas/ha con fertilización se logra la mejor producción de forraje en materia seca (865.44 kg/ha y la máxima producción de grano (1073 kq/ha. Se considera que este es el primer trabajo que se realiza en Colombia en donde se utiliza la soya como planta forrajera y a la vez productora de grano en condiciones de campo.The possibility of developing a "double production" (green forage and grain system, the influence of population densities and fertilization on soybean were studied. A design of divided plots was used (main plots: fertilization and subplots: three population densities l. The soybean can be used as a double purpose plant. A population density of 360000 plants/ha with fertilization gives the best forage yield in dry matter (865.44 kg/ha and the maximum grain production (1073 kq/ha. This work is considered to be the first done in Colombia using soybean as forage and grain producer under field conditions.

  6. La espada de La Perla. Estudio de las empuñaduras de remaches con doble arco: un Unicum en la serie de armas europeas de la Edad del Bronce

    Directory of Open Access Journals (Sweden)

    Gómez Ramos, Pablo

    2001-12-01

    Full Text Available The study of the Bronze-Age sword from La Perla (Madrid, Spain shows the development of a unique hilt design in the shape of a double-arch during the Early and Middle Bronze Ages. After the well-known paper by Almagro-Gorbea in 1972 on the Guadalajara sword, new archaeological finds during the last thirty years have shown the singularity of this system as against those employed in other parts of Europe, a singularity confirmed by numerous metallurgical analyses of Bronze Age swords.

    El estudio de la espada madrileña de La Perla viene a constatar un modelo único de enmangar espadas en España durante el Bronce Antiguo y Medio, mediante empuñaduras de doble arco. Desde el trabajo clásico de Almagro Gorbea en 1972 sobre la espada de Guadalajara, se han venido sucediendo en estas casi tres décadas, nuevos hallazgos arqueológicos que refuerzan la singularidad del ejemplo español con respecto a otras áreas europeas y que se completa con la investigación de los análisis metalúrgicos realizados a numerosas espadas de la Edad del Bronce.

  7. Procesos espaciales asociados a la construcción de la doble calzada BTS en los municipios de Tunja, Cómbita y Oicatá (2005-2012

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    Andrés Felipe Bautista Vargas

    2016-01-01

    Full Text Available Se aborda el estudio de los procesos espaciales asociados a la construcción de la infraestructura vial de la doble calzada Briceño-Tunja-Sogamoso BTS, en los municipios de Tunja, Cómbita y Oicatá, en Colombia, a través de la fotointerpretación de imágenes Spot 2005 y Google Map Tiff 2012, aplicando la lectura de la leyenda nacional de coberturas de la tierra metodología Corine Land Cover (CLC adaptación para Colombia escala 1:100.000 (Ministerio de Ambiente y Desarrollo Sostenible, 2010. Se advirtieron diferentes procesos espaciotemporales no lineales, que obedecen a la incidencia de la infraestructura vial en la localización de nuevo tejido urbano discontinuo, fragmentación predial, y cambio de coberturas en su área de influencia. Como resultado se obtuvo un análisis espaciotemporal 2005-2012, conjugado con la estimación de la valorización predial, el cual resulta adecuado para apreciar la incidencia en el área de influencia, como evidenciar cambios transicionales en el uso del suelo.

  8. First Results of a Systematic Study of Internal Contamination Due to Fall-Out; Premiers Resultats d'une Etude Systematique des Contaminations Internes Consecutives aux Retombees Radioactives; 041f 0415 0420 0414 ; Resultados Iniciales de un Estudio Sistematico de las Contaminaciones Internas Debidas a la Precipitacion Radiactiva

    Energy Technology Data Exchange (ETDEWEB)

    Pellerin, P.; Moroni, J. P.; Remy, M. L. [Travail du Service Central de Protection Contre les Rayonnements Ionisants, Ministere de la Sante Publique, Paris (France)

    1964-11-15

    de realiser une premiere approximation. Ils ont de plus mesure l'excretion urinaire du strontium 90 chez un certain nombre de sujets, pour tenter d'en deduire la charge totale ou, tout au moins, une limite superieure pour ce radioisotope. (author) [Spanish] En septiembre de 1961, el Servicio Central de Proteccion contra las Radiaciones Ionizantes del Ministerio de Salud Publica de Francia empezo a efectuar examenes antropogamma- metricos, hasta la fecha se comprobaron mas de 500 examenes de esa indole. Se somete a examenes trimestrales o semestrales a un gran numero de personas y, frecuentemente, junto con dichos examenes se efectuan ra- dioanalisis de orina; en general, antes del estudio radioquimico, se procede a una exploracion sistematica de la muestra de orina por espectrometria gamma. El estudio comparado de los resultados de estos diversos examenes ha permitido deducir ciertos hechos relativos a la contaminacion interna debida a la precipitacion radiactiva: 1. El cesio-137 es el unico radioisotopo artificial cuya presencia queda constantemente demostrada por el examen antropogammametrico. La variacion del valor medio de la carga corporal total puede ser observada durante todo el perfodo que-abarca el conjunto de los examenes. Ademas, es posible comprobar la variacion, por otra parte bien conocida, de la carga radiactiva en funcion del sexo. 2. los autores han podido estudiar la relacion existente entre la excrecion urinaria de cesio-137 y la carga total de este isotopo en el organismo, en correspondencia con las debiles actividades que se registran habitualmente. Los resultados parecen confirmar las relaciones establecidas por otros autores para grados de contaminacion mas elevados. 3. En lo que se refiere a los productos de fision de perfodo medio, eh particular el circonio-95 + niobio-95 (y en menor grado el rutenio-103), se pudo comprobar que aparecen transitoriamente en determinados periodos. 4. El conocimiento de la carga total de estroncio-90 en el

  9. The Time Analysis and Frequency Distribution of Caesium-137 Fall-Out in Muscle Samples; Analyse en Fonction du Temps et Distribution des Frequences de Cesium 137 du aux Retombees de Cesium 137 Contenues dans des Echantillons de Tissu Musculaire; 0410 041d 0414 ; Analisis Temporal y Distribucion de Frecuencias del Cesio-137 Procedente de la Precipitacion Radiactiva en Muestras de Tejido Muscular

    Energy Technology Data Exchange (ETDEWEB)

    Ellett, W. H.; Brownell, G. L [Physics Research Laboratory, Massachusetts General Hospital, Boston 14, MA (United States)

    1964-11-15

    augmente et, en ete 1963, a atteint le quadruple du niveau minimum de 1962. On a etabli des histogrammes independants du temps en ajustant un polynome aux donnees brutes (radioactivite des echantillons en fonction de la date du deces). On a compare statistiquement les donnees ainsi ajustees a une distribution suivant la loi de Laplace-Gauss, a une distribution suivant la loi de Galton et a une distribution gamma. Les resultats indiquent que la distribution experimentale ne suit absolument pas la loi de Laplace-Gauss et qu'elle correspond le mieux a une distribution gamma. En utilisant la distribution gamma deduite empiriquement, on peut prevoir, pour n'importe quelle valeur de la retombee, quelle fraction de la population aura une charge corporelle egale a N fois la valeur moyenne. Les auteurs ont verifie ce modele pour l'augmentation quadruple de l'activite qui s'est produite depuis 1962 et ils ont constate qu'il permettait de prevoir avec precision la distribution actuelle de la radioactivite due au cesium 137 entre les differents membres de la population d'echantillons. (author) [Spanish] Cuando las concentraciones de radiactividad artificial en el cuerpo son bajas, el efecto perjudicial recaera sin duda en aquella parte de la poblacion en la cual la concentracion representa un multiplo del termino medio. Solamente puede evaluarse adecuadamente el riesgo que entranadla precipitacion radiactiva si se conoce la distribucion de frecuencias de la radiactividad en la poblacion. Los intentos para determinar la forma de la curva de distribucion, a partir de los datos de Kulo -sobre ia concentracion del estroncio-90 en los huesos de los ninos no han tenido mucho exito debido al reducido tamaflo de las muestras y a la falta de equilibrio en el hueso entre el estroncio-90 y el calcio. Para superar estas limitaciones, los autores han medido el contenido en cesio-137 de unas 900 muestras en musculos que fueron obtenidas en intervenciones post mortem entre enero de 1959 y agosto de

  10. El uso de fotocélulas de haz simple y doble para medir la velocidad en carreras®. The use of single- and dual-beam photocells to measure the sprint time®.

    Directory of Open Access Journals (Sweden)

    Juan García-López

    2012-10-01

    Full Text Available ResuemnEl objetivo del estudio fue analizar la influencia de la tecnología de las fotocélulas en el registro de tiempo y su fiabilidad durante de carreras de velocidad de corta distancia. Participaron 25 estudiantes (20.5±0.5 años; 1.78±0.02 m; 77.5±1.8 kg que fueron evaluados en 3 días (2 de familiarización y 1 de test. Se registraron aleatoriamente 3 carreras de aceleración y 3 velocidad lanzada, cronometradas simultáneamente a los 5, 10 y 15 m por dos sistemas de fotocélulas DSD Laser System®: haz simple y doble haz. El tipo de fotocélulas utilizadas influyó en el tiempo de carrera (F=11.92 y p 0.80 a los 10 y 5 m, respectivamente. En la carrera lanzada ambos sistemas midieron prácticamente igual (diferencias de ~0.005 s, obteniendo registros fiables a los 15 y 10 m, respectivamente. En conclusión, en carreras de aceleración la distancia mínima a registrar con haz simple debe ser de 10 m, y de 5 m con haz doble, mientras que en carreras lanzadas deberían utilizarse unas distancias mínimas de 15 y 10 m, respectivamente. Futuros estudios deberían analizar la distancia óptima a la primera fotocélula en las carreras de aceleración, para aumentar la fiabilidad de la medición y facilitar la comparación entre registros de diferentes estudios.AbstractThe purpose was to analyze the influence of the timing gates’ technology on both running time performance and its reliability during short sprint distances. Twenty-five physical students participated (20.5±0.5 yr; 1.78±0.02 m; 77.5±1.8 kg, whose were evaluated during 3 separate days (2 familiarization sessions and 1 testing session. Three standing-start and 3 flying-start runs were randomized and simultaneously registered at 5, 10 and 15 m by two timing gates DSD Laser System®: single- and dual-beam. The type of timing gates affected the performance (F=11.92 y p0.80 at the distances of 10 and 5 m, respectively. During the flying-start runs, both systems obtained a very

  11. Agua, pobreza y uso del tiempo en México: Análisis cuantitativo como sustento del diseño de una política pública de doble dividendo

    Directory of Open Access Journals (Sweden)

    Alejandro Guevara Sanginés

    2015-01-01

    Full Text Available Introducción: Los impactos de la escasez y contaminación del agua afectan a grandes sectores de la población, pero inciden de manera desproporcionada en los sectores de menores ingresos. El acceso al agua ha sido reconocido como un derecho fundamental para una vida digna por las Naciones Unidas (UN, 2010, por lo que si el Estado no pone los medios para el acceso universal al agua, estaría impidiendo la realización de los derechos humanos de una parte de la población. Así, la relación agua - pobreza es de la mayor importancia tanto desde el punto de vista de salud pública como el de equidad social. El presente trabajo estudia la relación entre la falta de acceso al agua, el tiempo destinado a trabajar y los niveles de ingreso. Método: Con información de dos rondas de la Encuesta Nacional sobre Uso del Tiempo 2002 y 2009 del INEGI, se estima la brecha de ingreso y de las horas trabajadas entre la población que destina tiempo en acarrear agua con aquella (estadísticamente comparable que no realiza esta actividad. Esto se hace a partir de un método de apareamiento (propensity score matching considerando características personales y del municipio donde éstas viven. Resultados: En ambos casos se observa una diferencia estadísticamente significativa. En el primero, la brecha del ingreso familiar trimestral era de alrededor de 9% en 2002 y de 12% en 2009. En el segundo, se estima que una persona que acarrea agua disminuye el tiempo que destinaba a trabajar en alrededor de 13% tanto en 2002 como en 2009. Estos resultados sugieren que la falta de acceso al agua es una condición que tiene un impacto significativo en hacer más proclive a una persona a caer en una condición de pobreza. Discusión o Conclusión: Una política de cobertura de dicho servicio tiene el doble efecto de atender un satisfactor fundamental de bienestar a la vez que libera a las personas de un tiempo adicional que puede aprovecharse en horas productivas. Ambos

  12. Caracterización de la ganadería de doble propósito en una región de Chiapas, México / Characterization of dual purpose livestock in a Region of Chiapas Mexico

    Directory of Open Access Journals (Sweden)

    Miguel Ángel Orantes-Zebadúa

    2014-01-01

    Full Text Available El objetivo del estudio fue caracterizar el sistema de ganado bovino de Doble Propósito (DP de la región 01 Centro de Chiapas, México y los factores socioeconómicos, tecnológicos y comerciales que limitan la producción. El estudio se desarrollo de octubre de 2007 a mayo de 2008. Se aplicó una encuesta aleatoria de 246 productores de una población de 1240 productores, correspondientes a nueve municipios de los 22 que conforma la región 01 Centro de Chiapas. Se analizaron variables cuantitativas, calculando medias aritméticas y porcentajes. En las variables cualitativas se realizaron tablas de frecuencias. Los datos fueron analizados utilizando el paquete estadístico Statistic® 6.0. Los resultados del estudio mostraron que la edad promedio de los productores fue de 50 años y con nivel de estudio de sexto de primaria promedio, 62 % son pequeños propietarios con un promedio de 26 ha y los ejidatarios representan solo 38 % con un promedio de 10 ha. La genética de los hatos está formada de ganado cebú/suizo (63 %, el ingreso económico es la ordeña (67 %, con producción promedio diario del hato de 54 I y el precio de venta del litro de leche a $2.62. Así mismo, 61 % de los productores realizan la comercialización de ganado y leche en el rancho. Aún no existe la organización empresarial y no han innovado tecnología para mejorar los procesos de comercialización.

  13. Doble difusión a partir de mediciones de microestructura en los canales Martínez y Baker, Patagonia chilena central (47,85°S

    Directory of Open Access Journals (Sweden)

    Iván Pérez-Santos

    2013-03-01

    Full Text Available Con un microperfilador SCAMP (Self Contained Autonomous MicroProfile se detectó un proceso de Doble Difusión Convectiva (DDC, en los canales Martínez y Baker de la Patagonia central, Chile. Este perfilador midió temperatura y salinidad en la columna de agua con una resolución del orden de milímetros. El muestreo se efectuó en diciembre 2011, en 19 estaciones oceanográficas de ~55 m de profundidad. Los registros del microperfilador permitieron detectar la formación de escaleras termohalinas que caracterizan la formación de la DDC. Por medio del ángulo de Turner se confirmó que debajo de una capa superficial fuertemente estratificada (7-10 m se registraron eventos de DDC a profundidades entre 15 y 45 m. La DDC fue débil en la mayoría de los registros pero se evidenciaron eventos fuertes entre 15 y 40 m. En la capa subsuperficial, su origen se debió al intercalamiento de las masas aguas estuarinas (aguas frías y menos saladas encima de las oceánicas (aguas más cálidas y saladas, mientras que en la superficie la interacción océano-atmósfera favoreció su ocurrencia. La DDC en conjunto con el viento, las mareas y las ondas internas, puede constituir un mecanismo importante para la mezcla vertical, influenciando los flujos de calor, el hábitat de las especies marinas en estas profundidades y la exportación de carbono hacia los sedimentos.

  14. Internacionalización de la educación superior en Costa Rica La experiencia de una maestría de doble titulación de la Universidad Nacional

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    Arlette Pichardo Muñiz

    2016-06-01

    Full Text Available Costa Rica ha propiciado la movilidad internacional estudiantil y docente desde hace varias décadas, incluso como sede de programas internacionales de educación superior. El Centro Internacional de Política Económica para el Desarrollo Sostenible (CINPE de la Universidad Nacional (UNA en la actualidad imparte la Maestría en Gerencia del Comercio Internacional (MGCI, en doble titulación con el Instituto Tecnológico de Santo Domingo (INTEC, República Dominicana. Esta es la primera de su género en el país –según se conoce hasta la fecha– y, quizás, en Centroamérica, donde una universidad costarricense aporta el currículo y asume el liderazgo académico, incorporando la transculturalidad como valor agregado. El objetivo del artículo es difundir lecciones de esta experiencia que puedan ser útiles para otras iniciativas. En términos generales, los resultados de la sistematización indican que: (1 la inclusión de las dimensiones internacional e intercultural supone, primero, la internacionalización en casa; (2 la creación de condiciones iniciales para escalar peldaños superiores en el proceso de internacionalización, no ocurre de la noche a la mañana; (3 la gestión y gerencia suponen soluciones innovadoras y consensuadas; y (4 hace falta poner la debida atención en la armonización de procedimientos, instrumentos y formularios. Sobre la base de los principales hallazgos se presentan algunas conclusiones, en particular para la discusión de las implicaciones de un programa de esta naturaleza u otros con características similares.

  15. Labio doble: Caso clínico y revisión de la literatura Lábio duplo: relato de caso e revisão da literatura Double lip: Report of a case and review of the literature

    Directory of Open Access Journals (Sweden)

    P. Olímpio Aguiar

    2011-06-01

    Full Text Available El labido doble es una anomalía rara que se caracteriza por una redundancia de la mucosa labial visible al abrir la boca o al sonreir. Afecta con mayor frecuencia al labio superior. Su tratamiento es quirúrgico, para lo cual están descritas diversas técnicas. En la paciente que presentamos se realizaron resecciones elípticas de la mucosa y del tejido submucoso combinadas con una z-plastia vertical en la parte central del labio superior. Los resultados estéticos y funcionales de nuestro caso fueron satisfactorios.Lábio duplo é uma anomalia rara caracterizada por uma redundância de mucosa labial visível à abertura bucal ou ao sorriso. Ocorre com maior freqüência no lábio superior. O tratamento é cirúrgico sendo descritas algumas técnicas para sua correção. Na paciente apresentada foram realizadas ressecções elípticas de mucosa e tecido submucoso combinadas a uma z-plastia vertical na parte central do lábio superior. Os resultados estético e funcional foram satisfactórios.Double lip is a rare anomaly characterized by a redundancy of labial mucosa visible during mouth opening or during smiling. It occurs more frequently in the upper lip. The treatment is surgical and there are many techniques for its correction. In our clinical case we used an elliptical excision of mucosal and submucosal tissue combined with a vertical midline z-plasty of the upper lip. Satisfactory aesthetic result was achived.

  16. TBscore II

    DEFF Research Database (Denmark)

    Rudolf, Frauke; Lemvik, Grethe; Abate, Ebba

    2013-01-01

    Abstract Background: The TBscore, based on simple signs and symptoms, was introduced to predict unsuccessful outcome in tuberculosis patients on treatment. A recent inter-observer variation study showed profound variation in some variables. Further, some variables depend on a physician assessing...... them, making the score less applicable. The aim of the present study was to simplify the TBscore. Methods: Inter-observer variation assessment and exploratory factor analysis were combined to develop a simplified score, the TBscore II. To validate TBscore II we assessed the association between start...

  17. Pb II

    African Journals Online (AJOL)

    Windows User

    This investigation describes the use of non-living biomass of Aspergillus caespitosus for removal of ... Pb(II) production has exceeded 3.5 million tons per year. It has been used in the ... This biomass was selected after screening a wide range of microbes. .... prolonged, which proved better biopolymer in metal uptake (Gadd ...

  18. Determination of Fallout Radionuclides in Environmental Samples by Gamma-Ray Spectrometry; Mesure Spectrometrique Gamma des Radionucleides de Retombee Presents dans des Echantillons du Millieu; Opredelenie radioizotopov radioaktivnykh osadkov v probakh iz okruzhayushchej sredy pri pomoshchi spektrometrii gamma-luchej; Determinacion, por Espectrometria Gamma, de los Radionuclidos de Precipitaciones en Muestras del Medio Ambiente

    Energy Technology Data Exchange (ETDEWEB)

    Ward, G. M.; Johnson, J. E.; Wilson, D. W. [Department of Animal Science, Colorado State University, Fort Collins, CO (United States)

    1965-10-15

    programme prepare pour la solution correspondant a la concentration de chacun des neuf nucleides mentionnes ci-dessus. Les auteurs ont utilise le meme programme pour resoudre la question de la teneur en {sup 137}Cs et en {sup 40}K du lait, de la viande et de l'urine, cette methode etant plus simple et les marges d'erreur plus reduites. (author) [Spanish] Desde mayo de 1962 los autores han venido reuniendo gran nfimero de muestras del medio ambiente en la granja de la Universidad del Estado de Colorado, a fin de estudiar el paso del {sup 137}Cs por una parte importante de la cadena alimentaria del hombre. Todas las muestras eran de baja actividad especffica y las determinaciones se hicieron con un especttometto de rayos gamma provisto de un cristal de Nal(Tl) de 8 pulg de diametro y 4 pulg de espesor, protegido de la actividad ambiente por una camara de paredes de acero de 12,7 cm de espesor y conectado a un analizador de amplitud de impulsos de 400 canales. Los autores procedieron al recuento directo, empleando una geometria constante, de la actividad de filtros de aire del tipo de almohadilla y de grandes muestras (1 kg) de forraje, grano y heces desecadas de bovidos. Las muestras de las precipitaciones se concentraron haciendolas pasar por columnas con resinas de intercambio cationico Dowex-50. Tambien se procedio al recuento de la actividad de muestras de leche, carne y orina contenidas en grandes recipientes anulares de Lucite. El {sup 137}Cs, el {sup 40}K, el {sup 131}I y el {sup 140}Ba-La fueron los unicos radionuclidos emisores de rayos gamma hallados en dichas muestras, ya que son los unicos productos de fision absorbidos en cantidades apreciables. Por otra parte, las demas muestras contenfan {sup 141,144}Ce, {sup 135}Sb, {sup 103,106}Ru, {sup 95}Zr-Nb y {sup 54}Mn. En estas muestras, reunidas en 1962 y 1963, solo era posible determinar con seguridad, por espectrometria gamma y durante un perfodo de unos 6 meses despues de recogida la muestra, el {sup 95}Zr

  19. Preparation of Uranium Dioxide by Electrochemical Reduction in Ammonium Carbonate Solutions and Subsequent Precipitation; Preparation de bioxyde d'uranium par reduction electrochimique dans des solutions de carbonate d'ammonium et precipitation; Prigotovlenie dvuokisi urana metodom ehlektrokhimicheskogo vosstanovleniya v rastvore karbonata ammoniya s posleduyushchim osazhdeniem; Preparacion de dioxido de uranio por reduccion electroquimica en soluciones de carbonato amonico u precipitacion subsiguiente

    Energy Technology Data Exchange (ETDEWEB)

    Pravdic, V.; Branica, M.; Pucar, Z. [Department of Physical Chemistry, Rudjer Boskovic Institute, Zagreb, Yugoslavia (Serbia)

    1963-11-15

    tecnologicos. Se construyo una celda electrolitica de cloruro de polivinilo duro con catodo de mercurio de aproximadamente 2,5dm{sup 2} de superficie y anodos de platino. El catolito estaba separado del anolito por membranas de intercambio cationico. El catolito se hizo circular entre dos depositos de 50 1 y se dirigio hacia el catodo de mercurio sometido a una agitacion energica. El potencial del mercurio se mantuvo constante en -1,5 V comprobandolo con un electrodo patron de Ag/AgCl/KCl (sat.). El rendimiento de la corriente es aproximadamente el 90% y la energia consumida para el proceso de reduccion esde unos 0,8 kWh/kg de dioxido de uranio. Una vez terminada la electrolisis, se inicio la precipitacion calentando simplemente a 70 deg. C la solucion limpida de color verde obscuro, en otro recipiente de vidrio de 60 1 de capacidad. A partir de 50 1 de solucion de catolito se obtuvo por centrifugacion 1 kg de producto (conteniendo alrededor de un 20% de agua). El analisis por culombimetria de la razon O/U dio resultados siempre comprendidos entre 2,04 y 2,09. El procedimiento descrito permite precipitar selectivamente el oxido hidratado de uranio (IV) observandose que la razon O/U en el precipitado es independiente del grado que haya alcanzado la reduccion. Analizando el polvo por difraccion de rayos X , se pudo identificar el producto como la fase alfa del dioxido de uranio. Se estan realizando experimentos de sinterizacion y caracterizacion del dioxido de uranio obtenido de esta manera a fin de comprobar en que medida responde a las especificaciones para combustibles nucleares ceramicos. (author) [Russian] Dlya polucheniya bol'shego kolichestva materiala, neobkhodimogo dlya tekhnologicheskikh ispytanij, sdelana popytka rasshirit' masshtab protsessa. Byl skonstruirovan ehlektrolizer iz tverdogo polivinil- khlorida s rtutnym katodom okolo 2,5dm''2 i platinovymi anodami. Katodnyj rastvor otdelyalsya ot anodnogo kationoobmennymi membranami. Katodnyj rastvor tsirkuliroval mezhdu

  20. Doble parálisis de los elevadores y su comportamiento clínico-quirúrgico en Ciudad de La Habana, Cuba Double elevador palsy and its clinical surgical behavior in the City of Havana, Cuba

    Directory of Open Access Journals (Sweden)

    Teresita de Jesús Méndez Sánchez

    2009-12-01

    Full Text Available OBJETIVO: Describir los resultados clínico-quirúrgicos de los pacientes con doble parálisis de los elevadores. MÉTODOS: Se realizó un estudio descriptivo retrospectivo a 16 pacientes que acudieron al servicio de oftalmología pediátrica y estrabismo del Instituto Cubano de Oftalmología "Ramón Pando Ferrer", desde septiembre de 2004 hasta septiembre de 2006, en el que se analizaron las siguientes variables: etiología, motilidad ocular, ausencia de signo de Bell, ptosis o pseudoptosis palpebral, resultados de la técnica quirúrgica aplicada. La técnica utilizada fue la transposición completa de los rectos horizontales al recto superior. RESULTADOS: La etiología fue congénita en todos los pacientes. El 100 % de la muestra presentó hipotropía en posición primaria de mirada con marcada limitación de la elevación activa, tanto en aducción como abducción, con elevación del mentón y signo de Bell ausente. El 62,5 presentaba pseudoptosis y el 37,5 ptosis. Alcanzaron ortotropia 14 pacientes y dos quedaron con hipotropía menor de 15 dioptrías prismáticas. CONCLUSIONES: Se obtuvieron buenos resultados quirúrgicos en casi la totalidad de los pacientes.OBJECTIVE: To describe the clinical surgical outcomes of patients with double elevator palsy. METHODS: A retrospective descriptive study of 16 patients, who went to the ophthalmologic pediatric strabismus service at "Ramón Pando Ferrer" Cuban Institute of Ophthalmology from September 2004 to September 2006, was carried out based on the following variables: etiology, ocular motility, lack of Bell´s sign, palpebral pstosis or pseudoptosis, and results of the applied surgical technique. The surgical method was the complete transposition of horizontal recti to upper rectus. RESULTS: There was congenital etiology in all the patients. The whole sample presented with hypotropia in the primary position of the look, with significant restriction of active elevation both in adduction and

  1. Cirugía de tipo uno y medioventricular en la doble salida del ventrículo izquierdo One a half ventricular surgery type in the double outlet of left ventricle

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    Luis Marcano Sanz

    2012-03-01

    Full Text Available La doble salida del ventrículo izquierdo es muy poco frecuente, en la cual la aorta y la arteria pulmonar, emergen completa o predominantemente del ventrículo izquierdo. Cuando se acompañan de comunicación interventricular y de estenosis pulmonar la corrección se realiza usualmente con interposición de un conducto entre el ventrículo derecho y la arteria pulmonar. El objetivo del presente trabajo es presentar un caso tratado con cirugía de tipo uno y medio ventricular, pues, hasta donde conocemos, esta técnica no ha sido empleada en esta enfermedad para evitar el uso de conductos protésicos. Se reporta en una niña de 3 años de edad, a quien se le cerró la comunicación interventricular, se desconectó la arteria pulmonar del ventrículo izquierdo y se anastomosó al nuevo tracto de salida del ventrículo derecho, y se realizó derivación cavopulmonar parcial. Después de 6 años de seguimiento presenta buena evolución clínica, ecocardiográfica y capacidad funcional adecuada.The double outlet of the left ventricle is uncommon, where the aorta and the pulmonary artery emerge total or predominantly from the left ventricle. When they are accompanied of an interventricular communication and of pulmonary stenosis, the correction is usually carried out with the insertion of a conduct between the right ventricle and the pulmonary artery. The objective of present paper is to present a case treated with one half ventricular surgery type and ventricular medium, since until is known, this technique has not used in this disease to avoid the use of prosthetic conducts. Authors reports the case of a girl aged 3 undergoes the closure of the interventricular communication, switching off the pulmonary artery of the left ventricle and anastomosing it to the new outlet tract of right ventricle, carrying out a partial cavopulmonary bypass. After 6 years of follow-up she has a good clinical and echocardiographic evolution as well as a appropriate

  2. Synthesis of nanocomposite coating based on TiO2/ZnAl layer double hydroxides; Síntesis de un revestimiento nanocompuesto basado en TiO2 / ZnAl hidróxidos dobles en capas

    Energy Technology Data Exchange (ETDEWEB)

    Jovanov, V.; Rudic, O.; Ranogajec, J.; Fidanchevska, E.

    2017-07-01

    The aim of this investigation was the synthesis of nanocomposite coatings based on Zn-Al layered double hydroxides (Zn-Al LDH) and TiO2. The Zn-Al LDH material, which acted as the catalyst support of the active TiO2 component (in the content of 3 and 10 wt. %), was synthesized by a low super saturation co-precipitation method. The interaction between the Zn-Al LDH and the active TiO2 component was accomplished by using vacuum evaporation prior to the mechanical activation and only by mechanical activation. The final suspension based on Zn-Al LDH and 10wt. % TiO2, impregnated only by mechanical activation, showed the optimal characteristics from the aspect of particle size distribution and XRD analysis. These properties had a positive effect on the functional properties of the coatings (photocatalytic activity and self-cleaning efficiency) after the water rinsing procedure. [Spanish] El objetivo de esta investigación fue la preparación de recubrimientos de nanocompuestos basados en Zn-Al hidróxidos dobles en capas (Zn-Al LDH) y TiO2. El material de LDH Zn-Al, que actuaba como catalizador del componente activo TiO2 (en el contenido de 3 y 10 en peso.%), se sintetizó por un método de co-precipitación con baja sobresaturación. La interacción entre el Zn-Al LDH y el componente activo TiO2 se llevó a cabo mediante el uso de la evaporación al vacío antes de la activación mecánica y sólo por activación mecánica. La suspensión final basada en Zn-Al LDH y 10wt. % TiO2, impregnada solamente por la activación mecánica, mostró las características óptimas desde el aspecto de la distribución de tamaño de partícula y análisis de XRD. Estas propiedades tenían un efecto positivo sobre las propiedades funcionales de los revestimientos (actividad fotocatalítica y eficiencia de auto-limpieza) después del procedimiento de aclarado de agua.

  3. Profesar la profesión de profesor. Entre el filósofo y el agente doble Professing the teacher's profession. Between the philosopher and the double agent

    Directory of Open Access Journals (Sweden)

    Jose Garcia Molina

    2013-03-01

    Full Text Available

    Desde su puesta en marcha el Plan Bolonia ha generado un amplio debate alrededor de la deriva mercantilista-neoliberal que introduce en todos los niveles de la institución universitaria. La tensión entre visiones idealizadas de la universidad, seguramente inviables, y visiones utilitaristas, a todas luces injustas, centra el foco de la discusión. Tales tensiones sacan a la luz la pluriversidad y multiversidad que atraviesan la universidad actual.

    ¿A qué da y a qué puede dar forma todavía la universidad y sus profesionales? Tomando como referencia algunas enseñanzas de Alain Badiou y de Jacques Derrida intentamos pensar la situación universitaria y los vínculos entre el profesar, el profesor y la profesión. El análisis pretende sintetizar, de otras maneras, lo que la universidad puede o puede ser en la actualidad. Síntesis que nos lleva a pensar la función del docente universitario mediante las metáforas del filósofo y el agente doble.

    From its beginnings the Bolonya plan has generated a wide debate around its market-oriented and neoliberal tendencies, present at all levels of the university institution. The tension between idealized views of the university, probably impossible to realize, and utilitarian views, clearly unjust, centers the focus of the debate. These tensions bring to light the pluriversity and multiversity that traverse the contemporary university.

    To what does the university and its professionals still give form? Taking as a reference some teachings by Alain Badiou and Jacques Derrida, we try to think the university situation, and the links between professing, the professor, and the profession. The analysis attempts to synthesize, in a different way

  4. Técnica de doble pedículo lateral en reconstrucción mamaria después de tumorectomía Double lateral pedicle technique in breast reconstruction after tumorectomy

    Directory of Open Access Journals (Sweden)

    Orlando Rafael Expósito Reyes

    2007-12-01

    Full Text Available Los tumores mamarios aparecen cada vez con mayor frecuencia, e igualmente las secuelas poco estéticas de la cirugía de estos. Se presenta la técnica quirúrgica de doble pedículo externo (superior e inferior en la reconstrucción mamaria después de una tumorectomía por fibroadenoma gigante de la mama izquierda. Se planificó la intervención tomando como referencia la técnica de Skoog (pedículo lateral externo, por la localización, el área ocupada por la masa mamaria (3/4 partes de la mama y para conservar la irrigación del complejo areola-pezón. Para llenar el vacío dejado por el tumor, se utilizó un segundo pedículo inferolateral que se liberó, rotó y fijó a la fascia muscular, con sutura no absorbible, en el área del cuadrante superior interno, lo cual sirvió de relleno o apoyo al complejo areola-pezón y a su pedículo. Se obtuvo un resultado estético bueno, que satisfizo las expectativas de la paciente y de los médicos, al conservarse la mama y su forma.Breast tumors are more and more frequent, as well as the little aesthetic sequelae of their surgery. The external double pedicle surgical technique (upper and lower in breast reconstruction after a tumorectomy due to giant fibroadenoma of the left breast was presented. The operation was planned taking Skoog’s technique as a reference (external lateral pedicle by the localization, the area occupied by the breast mass (3/4 parts of the breast and to preserve the irrigation of the areola-nipple complex. To fill the gap left by the tumor, it was used a second inferolateral pedicle that was released, rotated and fixed to the muscle fascia with non-absorbable suture in the area of the upper internal quadrant that served as a filling or support to the areola-nipple complex and to its pedicle. A good aesthetic result that satisfied the patients and specialists’ expectations was obtained on conserving the breast and its form.

  5. Small Diameter Bomb Increment II (SDB II)

    Science.gov (United States)

    2015-12-01

    Selected Acquisition Report (SAR) RCS: DD-A&T(Q&A)823-439 Small Diameter Bomb Increment II (SDB II) As of FY 2017 President’s Budget Defense... Bomb Increment II (SDB II) DoD Component Air Force Joint Participants Department of the Navy Responsible Office References SAR Baseline (Production...Mission and Description Small Diameter Bomb Increment II (SDB II) is a joint interest United States Air Force (USAF) and Department of the Navy

  6. Gimnasio doble, en Giessen – Alemania

    Directory of Open Access Journals (Sweden)

    Novotny - Mähner, -

    1967-12-01

    Full Text Available This gymnasium occupies a ground area of 30 x 30 m, and it comprises two gymnasium halls, with folding partitions, which make it easy to convert them into a single large hall, if necessary. There are also the usual dressing rooms, showers and various other services. A stand, with capacity for 400 spectators, is an important additional feature. But the most outstanding aspect of this project is the structure and roof, which is highly novel, both constructionally and architecturally.Construido sobre una superficie de 30 x 30 m, el edificio alberga: dos salas de gimnasia —con una compartimentación plegable, que hace factible el convertirlas en una gran sala en caso necesario—; los vestuarios; duchas; etc. Hay una tribuna con capacidad para 400 espectadores; pero, en esta edificación, hay que destacar la solución adoptada para su estructura y cubierta por la novedad que presenta, tanto desde el punto de vista constructivo como formal.

  7. Radioactive rare earths from fallout for study of particle movement in the sea; Etude du mouvement des particules dans la mer a l'aide de terres rares radioactives provenant de retombees; Ispol'zovanie osazhdayushchikhsya pri vypadenii radioaktivnykh redkikh zemel' dlya issledovaniya dvizheniya chastits v more; Estudio del movimiento de las particulas en el mar con ayuda de tierras raras radiactivas procedentes de las precipitaciones

    Energy Technology Data Exchange (ETDEWEB)

    Sugihara, Thomas T [Clark University, Worcester, MA (United States); Bowen, Vaughan T [Woods Hole Oceanographic Institution, Woods Hole, MA (United States)

    1962-01-15

    'interpreter les resultats de cette etude dans le cadre general de la geochimie marine des cations trivalente, et de mettre en evidence les aspects particuliers et l'utilite generale de cet essai d'utilisation des retombees comme indicateurs. (author) [Spanish] En el marco de un vasto estudio sobre la distribucion en el oceano Atlantico de los raclionuclidos de periodo largo procedentes de precipitaciones radiactivas, se han efectuado numerosas mediciones de la concentracion del cerio-144 y del promecio-147. Una comporacion de las variaciones horizontales y verticales de estas concentraciones con las concentraciones del estroncio-90, que fueron medidas al mismo tiempo, demuestra que las tierras rasas suelen abundar menos en las aguas superficiales que los nuclidos que se sabe son solubles. Esta observacion, unida al hecho de que se ha observado a menudo un enriquecimiento de las aguas profundas en tierras raras, permite afirmar que esos elementos experimentan un rapido transporte vertical al fijarse a particulas en vias de sedimentacion. Esta hipotesis es perfectamente compatible con el comportamiento ''radiocoloidal'' caracteristico de las tierras raras al pH del agua de mar. En la memoria se procura interpretar este estudio en el contexto de las propiedades generales de los cationes trivalentes en geoquimica marina; asimismo, se ponen de manifiesto los aspectos caracteristicos y la utilidad general de este ensayo de utilizacion de las precipitaciones como indicadores radiactivos. (author) [Russian] V kachestve chasti podrobnogo issledovaniya raspredeleniya dolgozhivushchikh radioizotopov, osevshikh pri vypadenii v Atlanticheskom okeane, bylo prodelano znachitel'noe chislo zamerov kontsentratsii tseriya-144 i prometiya-147. Sopostavlenie ehtikh kontsentratsij po mere ikh izmeneniya kak v gorizontal'nom, tak i v verti-kal'nom napravleniyakh s odnovremenno zamerennymi kontsentratsiyami strontsiya-90 pokazyvaet, chto redkie zemli nakhodyatsya obychno v men'shikh kolichestvakh na

  8. El método de la caxa entera de Juan Bautista de Herrera (1628: una visión peculiar de la partida doble? = The caxa entera method of Juan Bautista de Herrera (1628: A particular overview of double-entry bookkeeping?

    Directory of Open Access Journals (Sweden)

    José Julián Hernández Borreguero

    2012-01-01

    Full Text Available Juan Bautista de Herrera fue contador del Cabildo Catedral de Sevilla a principios del siglo XVII. En uno de esos libros realiza una introducción en la que explica la utilidad del método de la partida doble, así como los argumentos de cómo debía implantarse el nuevo método. El estudio de dichos argumentos se ha realizado tomando como referencia el primer tratado de contabilidad español escrito por Bartolomé Salvador de Solórzano (1590 dado que este recoge las características y esencia de la partida doble castellana en ese período. A continuación comienza el registro de hechos contables sin recurrir a un libro diario.Juan Bautista de Herrera was an accountant of the Cathedral Council of Sevilla at the beginning of 17th century. In one of these books Herrera made an introduction explaining the usefulness of the double-entry bookkeeping method and argued how to implement it. The aim of this paper is to analyse his arguments using Bartolome Salvador de Solorzano´s approach. Solorzano wrote the first Spanish accounting treatise in 1590, where he compiled the characteristics and essence of Spanish double-entry bookkeeping in this period. Herrera recorded in this book without using a daybook.

  9. Tomo II

    OpenAIRE

    Llano Zapata, José Eusebio

    2015-01-01

    Memorias, histórico, físicas, crítico, apologéticas de la América Meridional con unas breves advertencias y noticias útiles, a los que de orden de Su Majestad hubiesen de viajar y describir aquellas vastas regiones. Reino Vegetal, Tomo II. Por un anónimo americano en Cádiz por los años de 1757. Muy Señor mío, juzgo que los 20 artículos del libro que remití a Vuestra Merced le habrán hecho formar el concepto que merece la fecundidad de aquellos países en las producciones minerales. Y siendo es...

  10. Control de la tenacidad de los hormigones reforzados con fibras usando el ensayo de doble punzonamiento (ensayo barcelona Quality control of fiber reinforced concretes by mean of double punshing test (barcelona test

    Directory of Open Access Journals (Sweden)

    Sergio Carmona Malatesta

    2009-08-01

    Full Text Available Tradicionalmente, se utiliza el ensayo de vigas prismáticas sometidas a flexión para caracterizar la resistencia y el comportamiento en el régimen post fisuración del hormigón reforzado con fibras (HRF. Sin embargo, estos ensayos presentan una alta dispersión en sus resultados cuestionando su empleo para el control sistemático del HRF en obras; tienen, además el inconveniente de tratarse de ensayos complejos que requieren de probetas pesadas y de personal de laboratorio altamente calificado. Alternativamente, se ha propuesto el uso de otros ensayos normalizados de tracción directa e indirecta para realizar la caracterización de propiedades de los HRF, pero éstos han resultado ser muy complejos de ejecutar, sin obtener grandes mejoras en relación a la alta dispersión de los resultados. Con la finalidad de solucionar esta serie de inconvenientes, se ha propuesto el uso de un ensayo de tracción indirecta basado en una configuración del ensayo de doble punzonamiento, al que se ha denominado "Ensayo Barcelona". Este ensayo requiere de probetas de pequeñas dimensiones, con una alta superficie específica de fractura, permitiendo obtener valores representativos de la resistencia y de la tenacidad del material, con un coeficiente de variación de los resultados inferior al 13%, valor que es considerablemente menor a los alcanzados con otras metodologías experimentales. En este artículo se presentan los resultados de diferentes campañas experimentales, que permiten validar el uso del ensayo Barcelona como una metodología experimental adecuada para la sistemática caracterización del HRF en obras.Traditionally, flexural testing of prismatic beams is used to characterize the strength and behavior in post - cracking regime of fiber - reinforced concretes (FRC. These tests exhibit a high dispersion in their results, and therefore invalidate the use of such tests for the systematic control of FRCs works. Also, they have the disadvantage

  11. Efecto del régimen de defoliación sobre la producción de grano en trigo doble propósito Effect of the defoliation regime on grain production in dual purpose wheat

    Directory of Open Access Journals (Sweden)

    N. Peralta

    2011-06-01

    Full Text Available La utilización de cultivos de trigo con doble propósito contribuiría a realizar un uso más eficiente de los recursos ambientales. En Balcarce (Buenos Aires, Argentina se estableció un cultivo de trigo (Triticum aestivum, cv. Baguette 20 sembrado en fecha temprana (17 de marzo de 2006 para comparar la producción de forraje obtenida con tres regímenes de defoliación: T1 (tres defoliaciones, T2 (dos defoliaciones y TG (sin defoliaciones. En esos tres tratamientos y en otro no defoliado sembrado en fecha normal para la producción de grano (7 de junio, TN se cuantificó la biomasa aérea (g MS m², el rendimiento de grano (kg ha-1 y sus componentes. La producción de forraje de T1 fue similar que la de T2 (497 y 392 g m-2, respectivamente. Las defoliaciones posteriores al estado de dos nudos (estado Zadoks 32 afectaron negativamente la radiación fotosintéticamente activa interceptada por el cultivo, disminuyendo tanto el número de granos m-2 como el peso por grano; en consecuencia, la producción de grano cayó 60% respecto de TG y 71% respecto de TN. Se estableció una relación cuantitativa entre la disminución del rendimiento en grano y el momento del último corte (i.e., días entre la última defoliación y antesis. El trigo presenta la ventaja de poseer un destino alternativo a su uso forrajero, que no la presentan otros verdeos de invierno. Puede destinarse sólo para uso forrajero, sólo para producir grano, o se lo puede utilizar buscando un balance entre la producción de forraje y grano.The utilization of dual purpose wheat crops may contribute to perform a more efficient use of environmental resources. In Balcarce (Buenos Aires, Argentina a wheat crop (Triticum aestivum, cv. Baguette 20 was seeded at an early date (March 17, 2006 and the forage production was compared with three defoliation frequencies: T1 (three defoliations; T2 (two defoliations and TG (without defoliations. The aerial biomass, grain yield (kg ha-1 and its

  12. Estudio tafonómico y tecnológico de un útil doble “cincel/retocador”, proveniente del nivel C (Musteriense de Axlor –Dima, Bizkaia

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    Millán MOZOTA HOLGUERAS

    2009-08-01

    Full Text Available RESUMEN: La industria en hueso del Paleolítico medio es una realidad compleja, que requiere de un enfoque distinto al aplicado hasta el momento, heredero de los estudios del Paleolítico superior. La existencia de esta clase de utillaje en hueso, a menudo llamado “poco elaborado”, es una realidad constatada en numerosos yacimientos de Paleolítico medio. Debido a inercias investigadoras, dicho utillaje no ha recibido la atención debida, para comprender su dimensión económica y social, en las actividades cotidianas de los grupos neandertales. El yacimiento de Paleolítico medio de Axlor (Dima, Bizkaia ha proporcionado un conjunto de útiles en hueso, en el marco de las excavaciones en curso. Este trabajo presenta el estudio de un útil óseo de doble función, hallado en el nivel C –Musteriense– de Axlor. Dicho útil se utilizó a modo de “cincel”, en tareas que implican movimientos de percusión y flexión, y –asimismo– como retocador, para trabajar la industria lítica. El análisis realizado combina aspectos tafonómicos, morfométricos y traceológicos (huellas de uso, para ofrecer una visión tecnológica de la obtención y utilización del soporte. Se ha establecido un desarrollo diacrónico para los trabajos que fueron realizados con el útil (una esquirla alargada y plana de húmero de Bos/Bison. La utilización como “cincel” se interrumpe con la fractura del extremo proximal del soporte, y el uso como retocador es posterior.ABSTRACT: Middle Palaeolithic bone tools are a complex reality. The most usual approach derives from the studies of Upper Palaeolithic bone industries, and there is a need for a different one. Those bone tools, often called “sparsely elaborated”, actually appear in many Middle Palaeolithic archaeological sites. Due to research biases, those asemblages haven’t received the propper attention, wich makes imposible to understand its true economic and social relevance (within the context of

  13. Influence of double cropping on growth and yield of dry beans with colored plastic mulches Influencia del doble cultivo en el crecimiento y rendimiento de frijol con cubierta plástica de colores

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    Luis Ibarra-Jiménez

    2012-12-01

    Full Text Available There are numerous studies of the use of plastic mulches in vegetable production, but there is little documentation of their use with dry beans (Phaseolus vulgaris L. in single and double cropping. The objective of this study was to grow dry beans over two consecutive growing seasons using the same plastic mulch of different colors and examine the influence of soil temperature on growth and yield. The experiment was conducted in Saltillo, Coahuila, Mexico, in the spring and summer of 2008. The treatments included four colored plastic mulches: white-on-black, black, silver-on-black, aluminum-on-black, and bare soil as a control. The experimental design was a randomized complete block with four replicates. The percentage of photosynthetically active radiation (PAR reflected from the plastic tended to be highest with the white-on-black mulch and lowest with the black mulch. Mean soil temperature under the plastic mulch decreased with the increasing percentage of reflected PAR. Mean soil temperature exhibited a relationship of 98% and 99% to yield in the first and second growing season, respectively. Photosynthetically active radiation had a relationship of 98% and 86% to yield in the first and second growing season, respectively. The effect of the colored plastic mulch on yield was significant (p Existen numerosos estudios sobre el uso de cubierta plástica en la producción de hortalizas, sin embargo está muy poco documentado el cultivo simple o doble de frijol (Phaseolus vulgaris L.. El objetivo de este estudio fue cultivar frijol en dos estaciones de crecimiento consecutivas usando la misma cubierta plástica de diferentes colores y examinar la influencia de la temperatura del suelo en el crecimiento y rendimiento de frijol. El estudio fue conducido en Saltillo, Coahuila, México, en la primavera y verano de 2008. Se usaron cuatro colores de acolchado plástico: blanco-sobre-negro, negro, plata-sobre-negro, aluminio-sobre-negro, y control de

  14. Cd(II), Cu(II)

    African Journals Online (AJOL)

    user

    Depending on the way goethite was pretreated with oxalic acid, affinity for Cd(II) varied ...... Effects and mechanisms of oxalate on Cd(II) adsorption on goethite at different ... precipitation, surfactant mediation, hydrothermal and micro-emulsion.

  15. Cu(II) AND Zn(II)

    African Journals Online (AJOL)

    Preferred Customer

    SYNTHESIS OF 2,2-DIMETHYL-4-PHENYL-[1,3]-DIOXOLANE USING ZEOLITE. ENCAPSULATED Co(II), Cu(II) AND Zn(II) COMPLEXES. B.P. Nethravathi1, K. Rama Krishna Reddy2 and K.N. Mahendra1*. 1Department of Chemistry, Bangalore University, Bangalore-560001, India. 2Department of Chemistry, Government ...

  16. Elizabeth II uus kunstigalerii

    Index Scriptorium Estoniae

    1999-01-01

    Tähistamaks oma troonile asumise 50. aastapäeva, avab Elizabeth II 6. II 2002 Buckinghami palees uue kunstigalerii, mis ehitatakse palee tiibhoonena. Arhitekt John Simpson. Elizabeth II kunstikogust

  17. Synthesis and characterisation of Cu(II), Ni(II), Mn(II), Zn(II) and VO(II ...

    Indian Academy of Sciences (India)

    Unknown

    Synthesis and characterisation of Cu(II), Ni(II), Mn(II), Zn(II) and VO(II) Schiff base complexes derived from o-phenylenediamine and acetoacetanilide. N RAMAN*, Y PITCHAIKANI RAJA and A KULANDAISAMY. Department of Chemistry, VHNSN College, Virudhunagar 626 001, India e-mail: ra_man@123india.com.

  18. The Radioisotopic Determination of Diffusion Coefficients and Currents in Natural Waters. Surface Collection of Radioactive Fall-Out on a Large Alpine Lake; Determination par detection nucleaire des coefficients de diffusion et des courants dans les eaux naturelles. Evolution de la surface de collection d'un grand lac alpin pour les retombees radioactives; Opredelenie koehffitsienta diffuzii i skorosti techeniya estestvennykh vod pri pomoshchi yadernogo detektirovaniya. Ehvolyutsiya poverkhnosti sbora radioaktivnykh osadkov na bol'shom al'pijskom ozere; Determinacion por deteccion nuclear de los coeficientes de difusion y de las corrientes en las aguas naturales evolucion de la superficie de captacion de un gran lago alpino para las precipitaciones radiactivas

    Energy Technology Data Exchange (ETDEWEB)

    Chesselet, R.; Nordemann, D. [Service d' Electronique Physique, Centre d' Etudes Nucleaires de Saclay (France); Dussart, B. [Centre de Recherches Hydrobiologiques, CNRS, Gif-sur-Yvette (France)

    1963-08-15

    'un coefficient de diffusion pour l'emetteur utilise et a la mesure eventuelle de la vitesse du courant au point ou la mesure est effectuee (dans le cas decrit, le lac Leman). Dans une seconde etape, en correlation avec une etude de geophysique concernant le probleme general des retombees radioactives, les auteurs ont utilise l'apport des retombees radioactives ayant pour origine les essais nucleaires atmospheriques (octobre 1961-janvier 1962). Des mesures de la radioactivite ont ete effectuees chaque jour sur des prelevements d'eau du lac Leman a des profondeurs de 0 m, 10 m, 20 m et sur un collecteur de retombees atmospheriques seches et humides. Malgre la complexite du regime des apports en fonction du temps, l'interpretation des diagrammes obtenus peut contribuer a resoudre le probleme du devenir des produits radioactifs dans les conditions de diffusion et de courants rencontrees. L'utilisation de la diffusion de produits radioactifs en tres faibles quantites et des differentes techniques de detection nucleaires a haute sensibilite actuellement disponibles peut conduire a une meilleure connaissance de la diffusion in situ et du mouvement des masses d'eaux naturelles. (author) [Spanish] En una primera etapa, los autores ha i provecado la difusion in situ de un emisor radiactivo, el sodio-22 en forma de Na{sup +}, de actividad muy baja (inferior al milicurie). La aplicacion de las leyes de la difusion a este caso facilita el calculo de la velocidad de difusion de la ''nube radiactiva''. Por consiguiente, el registro en funcion del tiempo de las actividades medidas con dos detectores gamma dispuestos de modo conveniente permite asignar un coeficiente de difusion ai emisor empleado y, eventualmente, evaluar la velocidad de la corriente en el punto en que se efectua la medicion (en el caso descrito, el lago Leman). En una segunda etapa, en relacion con un estudio geofisico del problema general de las precipitaciones radiactivas, los autores utilizaron la aportacion de las

  19. (II) COMPLEX COMPOUND

    African Journals Online (AJOL)

    user

    electrochemical sensors, as well as in various chromatographic ... were carried out using Jenway pH meter Model 3320 and a conductivity ... Figure 1: the proposed molecular structure of the copper (II) Schiff base complex. M = Cu (II) or Mn (II).

  20. and copper(II)

    Indian Academy of Sciences (India)

    Unknown

    (II) and copper(II)–zinc(II) complexes. SUBODH KUMAR1, R N PATEL1*, P V KHADIKAR1 and. K B PANDEYA2. 1 Department of Chemistry, APS University, Rewa 486 003, India. 2 CSJM University, Kanpur 208 016, India e-mail: (R N Patel) ...

  1. Estudo do estresse do enfermeiro com dupla jornada de trabalho em um hospital de oncologia pediátrica de Campinas Estudio del estrés del enfermero con doble jornada de trabajo en un hospital de oncologia pediátrica de Campinas Study on the stress over the nurse who works in two shifts at a pediatric oncology hospital in Campinas

    Directory of Open Access Journals (Sweden)

    Roberta Cova Pafaro

    2004-06-01

    Full Text Available Trata-se de um estudo que teve como objetivo investigar a presença e o nível de estresse emocional, os sintomas físicos e psicológicos, a intensidade do estresse e enfermeiros que fazem dupla jornada de trabalho comparados aos que não fazem, num hospital de oncologia pediátrica de Campinas. A população foi composta por 33 enfermeiros, sendo 24 em regime de dupla jornada e 9 em jornada única. Na metodologia foi utilizado o Inventario de Sintoma de Stress LIPP e a Escala Analógica Visual. Os resultados permitiram constatar que os enfermeiros classificados quanto as fases de estresse encontravam-se na fase de resistência, com referencia aos níveis de estresse os mesmos encontravam-se no nível médio de estresse, houve predominância dos sintomas psicológicos e os enfermeiros com dupla jornada estavam mais estressados em relação aos com jornada única.Se trata de un estudio que tuvo como objetivo investigar presencia y nivel de estrés emocional, síntomas físicos y psicológicos, intensidad del estrés y enfermeros que realizan doble jornada de trabajo comparados a los que no lo hacen, en un hospital de oncología pediátrica de Campinas. La población estuvo compuesta por 33 enfermeros, de los cuales 24 en régimen de doble jornada y 9 en jornada única. En la metodología fue utilizado el Inventario de Síntoma de Stress LIPP y la Escala Analógica Visual. Los resultados permitieron constatar que los enfermeros clasificados, en relación a las fases de estrés, se encontraban en la fase de resistencia; con referencia a los niveles de estrés los mismos se encontraban en el nivel medio de estrés; hubo predominio de los síntomas psicológicos y los enfermeros con doble jornada estaban más estresados que los de jornada única.This is a study that aimed investigating the presence and level of emotional stress, the physical and psychological symptoms, the intensity of stress and nurses who have two work shifts compared to the ones

  2. Pius II. a utrakvismus

    OpenAIRE

    Šimek, Milan

    2009-01-01

    Milan Šimek Pius II. a utrakvismus Pius II. and utraquism Based on sources work - out, the thesis aims the description and analysis of the attitude alternation of Enea Sylvio Piccolomini - Pius II to the utraquism. The conclusions stress the postulate that Pius II. did not change that attitude, but just did not succed in quelling the utraquist movement. In the sense of political background that finally led to fatal dissention among both leaders, king Jiří of Poděbrady and pope Pius II.

  3. Complexes of cobalt(II), nickel(II), copper(II), zinc(II), cadmium(II) and dioxouranium(II) with thiophene-2-aldehydethiosemicarbazone

    International Nuclear Information System (INIS)

    Singh, Balwan; Misra, Harihar

    1986-01-01

    Metal complexes of thiosemicarbazides have been known for their pharmacological applications. Significant antitubercular, fungicidal and antiviral activities have been reported for thiosemicarbazides and their derivatives. The present study describes the systhesis and characterisation of complexes of Co II , Cu II , Zn II ,Cd II and UO II with thiosemicarbazone obtained by condensing thiophene-2-aldehyde with thiosemicarbazide. 17 refs., 2 tables. (author)

  4. Communications Received from Certain Member States Regarding Guidelines for Transfers of Nuclear-related Dual-use Equipment, Materials, Software and Related Technology; Comunicaciones recibidas de diversos Estados Miembros relativas a las directrices para las transferencias de equipos, materiales y programas informaticos (software) de doble uso del ambito nuclear y tecnologia relacionada

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-04-11

    The Director General of the International Atomic Energy Agency has received Notes Verbales, dated 1 December 2005, from the Resident Representatives to the Agency of Argentina, Australia, Austria, Belarus, Belgium, Brazil, Bulgaria, Canada, Croatia, Czech Republic, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Japan, Republic of Korea, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, New Zealand, Poland, Portugal, Slovenia, South Africa, Spain, Sweden, Switzerland, Turkey, Ukraine, the United Kingdom of Great Britain and Northern Ireland and the United States of America, relating to transfers of nuclear-related dual-use equipment, materials, software and related technology [Spanish] El Director General del Organismo Internacional de Energia Atomica ha recibido Notas verbales de fecha 1 de diciembre de 2005 de los Representantes Permanentes ante el Organismo de Alemania, Argentina, Australia, Austria, Belarus, Belgica, Brasil, Bulgaria, Canada, Croacia, Eslovenia, Espana, Estados Unidos de America, Estonia, Finlandia, Francia, Grecia, Hungria, Irlanda, Italia, Japon, Letonia, Lituania, Luxemburgo, Malta, Nueva Zelandia, Paises Bajos, Polonia, Portugal, Reino Unido de Gran Bretana e Irlanda del Norte, Republica Checa, Republica de Corea, Sudafrica, Suecia, Suiza, Turquia y Ucrania relativas a las transferencias de equipos, materiales y programas informaticos de doble uso del ambito nuclear y tecnologia relacionada.

  5. Communications Received from Certain Member States Regarding Guidelines for the Export of Nuclear Material, Equipment and Technology. Nuclear Transfers and Nuclear-Related Dual-Use Transfers; Comunicaciones Recibidas De Diversos Estados Miembros Relativas A Las Directrices Para La Exportacion De Tecnologia, Equipo Y Materiales Nucleares. Transferencias Nucleares Y Transferencias De Equipo, Materiales V Tecnologia Afin Al Doble Uso En Materia Nuclear

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-04-15

    The Director General has received a Note Verbale dated 5 March 1993 from the Ministry of Foreign Affairs of the Slovak Republic. The purpose of the Note Verbale is to provide information on that Governments' guidelines for Nuclear Transfers and for Transfers of of Nuclear-related Dual-use Equipment, Material and Related Technology. In the light of the wish expressed at the end of each Note Verbale, the text of the Note Verbale is annexed hereto [Spanish] El Director General ha recibido una nota verbal de fecha 5 de marzo de 1993 del Ministerio de Relaciones Exteriores de la RepUblica Eslovaca. El objetivo de la nota verbal es proporcionar informaciOn sobre las Directrices para las transferencias nucleares y las Directrices para la transferencia de equipo, materiales y tecnologia afin al doble uso en materia nuclear, de dicho Gobierno. Atendiendo a los deseos expresados al final de la nota verbal, se adjunta al presente documento el texto de la nota verbal.

  6. Quininium tetrachloridozinc(II

    Directory of Open Access Journals (Sweden)

    Li-Zhuang Chen

    2009-10-01

    Full Text Available The asymmetric unit of the title compound {systematic name: 2-[hydroxy(6-methoxyquinolin-1-ium-4-ylmethyl]-8-vinylquinuclidin-1-ium tetrachloridozinc(II}, (C20H26N2O2[ZnCl4], consists of a double protonated quininium cation and a tetrachloridozinc(II anion. The ZnII ion is in a slightly distorted tetrahedral coordination environment. The crystal structure is stabilized by intermolecular N—H...Cl and O—H...Cl hydrogen bonds.

  7. Burkina Faso - BRIGHT II

    Data.gov (United States)

    Millennium Challenge Corporation — Millennium Challenge Corporation hired Mathematica Policy Research to conduct an independent evaluation of the BRIGHT II program. The three main research questions...

  8. cobalt(II), nickel(II)

    Indian Academy of Sciences (India)

    Unknown

    procedures. The supporting electrolyte, NaClO4 used in the voltammetric experiment was purchased from. Sigma. IR spectra were recorded in KBr medium on .... (13⋅6). L = Schiff base ligand form of one broad band envelope. The electronic spectra of Co(II) complex showed two spin-allowed transitions at 17856 and ...

  9. Nuclear physics II

    International Nuclear Information System (INIS)

    Elze, T.

    1988-01-01

    This script consisting of two parts contains the matter of the courses Nuclear Pyhsics I and II, as they were presented in the winter term 1987/88 and summer term 1988 for students of physics at Frankfurt University. In the present part II the matter of the summer term is summarized. (orig.) [de

  10. World War II Homefront.

    Science.gov (United States)

    Garcia, Rachel

    2002-01-01

    Presents an annotated bibliography that provides Web sites focusing on the U.S. homefront during World War II. Covers various topics such as the homefront, Japanese Americans, women during World War II, posters, and African Americans. Includes lesson plan sources and a list of additional resources. (CMK)

  11. Biologically active new Fe(II, Co(II, Ni(II, Cu(II, Zn(II and Cd(II complexes of N-(2-thienylmethylenemethanamine

    Directory of Open Access Journals (Sweden)

    C. SPÎNU

    2008-04-01

    Full Text Available Iron(II, cobalt(II, nickel (II, copper (II, zinc(II and cadmium(II complexes of the type ML2Cl2, where M is a metal and L is the Schiff base N-(2-thienylmethylenemethanamine (TNAM formed by the condensation of 2-thiophenecarboxaldehyde and methylamine, were prepared and characterized by elemental analysis as well as magnetic and spectroscopic measurements. The elemental analyses suggest the stoichiometry to be 1:2 (metal:ligand. Magnetic susceptibility data coupled with electronic, ESR and Mössbauer spectra suggest a distorted octahedral structure for the Fe(II, Co(II and Ni(II complexes, a square-planar geometry for the Cu(II compound and a tetrahedral geometry for the Zn(II and Cd(II complexes. The infrared and NMR spectra of the complexes agree with co-ordination to the central metal atom through nitrogen and sulphur atoms. Conductance measurements suggest the non-electrolytic nature of the complexes, except for the Cu(II, Zn(II and Cd(II complexes, which are 1:2 electrolytes. The Schiff base and its metal chelates were screened for their biological activity against Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa and the metal chelates were found to possess better antibacterial activity than that of the uncomplexed Schiff base.

  12. Evolved H II regions

    International Nuclear Information System (INIS)

    Churchwell, E.

    1975-01-01

    A probable evolutionary sequence of H II regions based on six distinct types of observed objects is suggested. Two examples which may deviate from this idealized sequence, are discussed. Even though a size-mean density relation of H II regions can be used as a rough indication of whether a nebula is very young or evolved, it is argued that such a relation is not likely to be useful for the quantitative assignment of ages to H II regions. Evolved H II regions appear to fit into one of four structural types: rings, core-halos, smooth structures, and irregular or filamentary structures. Examples of each type are given with their derived physical parameters. The energy balance in these nebulae is considered. The mass of ionized gas in evolved H II regions is in general too large to trace the nebula back to single compact H II regions. Finally, the morphological type of the Galaxy is considered from its H II region content. 2 tables, 2 figs., 29 refs

  13. Preliminary PBFA II design

    International Nuclear Information System (INIS)

    Johnson, D.L.; VanDevender, J.P.; Martin, T.H.

    1980-01-01

    The upgrade of Sandia National Laboratories particle beam fusion accelerator, PBFA I, to PBFA II presents several interesting and challenging pulsed power design problems. PBFA II requires increasing the PBFA I output parameters from 2 MV, 30 TW, 1 MJ to 4 MV, 100 TW, 3.5 MJ with the constraint of using much of the same PBFA I hardware. The increased PBFA II output will be obtained by doubling the number of modules (from 36 to 72), increasing the primary energy storage (from 4 MJ to 15 MJ), lowering the pulse forming line (PFL) output impedance, and adding a voltage doubling network

  14. Mn(II), Zn(II) and VO(II) Schiff

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences; Volume 113; Issue 3. Synthesis and characterisation of Cu(II), Ni(II), Mn(II), Zn(II) and VO(II) Schiff base complexes derived from o-phenylenediamine and acetoacetanilide. N Raman Y Pitchaikani Raja A Kulandaisamy. Inorganic Volume 113 Issue 3 June 2001 pp 183-189 ...

  15. The Belle II Experiment

    CERN Document Server

    Kahn, J

    2017-01-01

    Set to begin data taking at the end of 2018, the Belle II experiment is the next-generation B-factory experiment hosted at KEK in Tsukuba, Japan. The experiment represents the cumulative effort from the collaboration of experimental and detector physics, computing, and software development. Taking everything learned from the previous Belle experiment, which ran from 1998 to 2010, Belle II aims to probe deeper than ever before into the field of heavy quark physics. By achieving an integrated luminosity of 50 ab−1 and accumulating 50 times more data than the previous experiment across its lifetime, along with a rewritten analysis framework, the Belle II experiment will push the high precision frontier of high energy physics. This paper will give an overview of the key components and development activities that make the Belle II experiment possible.

  16. Factor II assay

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/003674.htm Factor II assay To use the sharing features on ... M. is also a founding member of Hi-Ethics and subscribes to the principles of the Health ...

  17. Factor II deficiency

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/000549.htm Factor II deficiency To use the sharing features on ... M. is also a founding member of Hi-Ethics and subscribes to the principles of the Health ...

  18. Ni(II

    African Journals Online (AJOL)

    Preferred Customer

    analytical chemistry, catalysis, electrochemistry, ring-opening metathesis ... Ethanol was dried over anhydrous copper(II) sulfate and distilled over metallic sodium. ... All bacteria were inoculated into Nutrient Broth (Difco) and incubated for 24 h ...

  19. NNDSS - Table II. Vibriosis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Vibriosis - 2017. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding year), and selected...

  20. Disruption Rose Tinted II

    OpenAIRE

    Livingstone, Andrew

    2009-01-01

    'Disruption - Rose Tinted II' continues to engage narratives of historical English china as previously explored in the work 'Rose Tinted'. This work engages the sleepy rural idyll which is overlaid with visual contemporary social commentary.

  1. NNDSS - Table II. Vibriosis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Vibriosis - 2018. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding year), and selected...

  2. Gamble II Facility

    Data.gov (United States)

    Federal Laboratory Consortium — FUNCTION: Gamble II produces a high-voltage (2 MV), high-current (1 MA), short (100 ns) pulse of energy of either positive or negative polarity. This terawatt power...

  3. Leo II PC

    Data.gov (United States)

    Kansas Data Access and Support Center — LEO II is a second-generation software system developed for use on the PC, which is designed to convert location references accurately between legal descriptions and...

  4. Tokapole II device

    International Nuclear Information System (INIS)

    Sprott, J.G.

    1978-05-01

    A discussion is given of the design and operation of the Tokapole II device. The following topics are considered: physics considerations, vacuum vessel, poloidal field, ring and support design, toroidal field, vacuum system, initial results, and future plans

  5. copper(II)

    Indian Academy of Sciences (India)

    Unknown

    bis(2,2,6,6-tetramethyl-3,5-heptadionato)copper(II) ... Abstract. Equilibrium concentrations of various condensed and gaseous phases have been thermodyna- ... phere, over a wide range of substrate temperatures and total reactor pressures.

  6. Digital optical computer II

    Science.gov (United States)

    Guilfoyle, Peter S.; Stone, Richard V.

    1991-12-01

    OptiComp is currently completing a 32-bit, fully programmable digital optical computer (DOC II) that is designed to operate in a UNIX environment running RISC microcode. OptiComp's DOC II architecture is focused toward parallel microcode implementation where data is input in a dual rail format. By exploiting the physical principals inherent to optics (speed and low power consumption), an architectural balance of optical interconnects and software code efficiency can be achieved including high fan-in and fan-out. OptiComp's DOC II program is jointly sponsored by the Office of Naval Research (ONR), the Strategic Defense Initiative Office (SDIO), NASA space station group and Rome Laboratory (USAF). This paper not only describes the motivational basis behind DOC II but also provides an optical overview and architectural summary of the device that allows the emulation of any digital instruction set.

  7. SPEAR II performance

    International Nuclear Information System (INIS)

    Paterson, J.M.

    1975-01-01

    The single beam and colliding beam performance of the SLAC electron-positron storage ring SPEAR II is described. The sevenfold increase in harmonic number in SPEAR II in comparison to SPEAR I has made significant changes in single beam behavior. Strong synchrobetatron resonances and a new transverse instability are observed, and our first studies of these phenomena are described. Measurements on current dependent bunch lengthening are presented. (auth)

  8. Computing at Belle II

    International Nuclear Information System (INIS)

    Kuhr, Thomas

    2012-01-01

    Belle II, a next-generation B-factory experiment, will search for new physics effects in a data sample about 50 times larger than the one collected by its predecessor, the Belle experiment. To match the advances in accelerator and detector technology, the computing system and the software have to be upgraded as well. The Belle II computing model is presented and an overview of the distributed computing system and the offline software framework is given.

  9. Nsls-II Boster

    Science.gov (United States)

    Gurov, S. M.; Akimov, A. V.; Akimov, V. E.; Anashin, V. V.; Anchugov, O. V.; Baranov, G. N.; Batrakov, A. M.; Belikov, O. V.; Bekhtenev, E. A.; Blum, E.; Bulatov, A. V.; Burenkov, D. B.; Cheblakov, P. B.; Chernyakin, A. D.; Cheskidov, V. G.; Churkin, I. N.; Davidsavier, M.; Derbenev, A. A.; Erokhin, A. I.; Fliller, R. P.; Fulkerson, M.; Gorchakov, K. M.; Ganetis, G.; Gao, F.; Gurov, D. S.; Hseuh, H.; Hu, Y.; Johanson, M.; Kadyrov, R. A.; Karnaev, S. E.; Karpov, G. V.; Kiselev, V. A.; Kobets, V. V.; Konstantinov, V. M.; Kolmogorov, V. V.; Korepanov, A. A.; Kramer, S.; Krasnov, A. A.; Kremnev, A. A.; Kuper, E. A.; Kuzminykh, V. S.; Levichev, E. B.; Li, Y.; Long, J. De; Makeev, A. V.; Mamkin, V. R.; Medvedko, A. S.; Meshkov, O. I.; Nefedov, N. B.; Neyfeld, V. V.; Okunev, I. N.; Ozaki, S.; Padrazo, D.; Petrov, V. V.; Petrichenkov, M. V.; Philipchenko, A. V.; Polyansky, A. V.; Pureskin, D. N.; Rakhimov, A. R.; Rose, J.; Ruvinskiy, S. I.; Rybitskaya, T. V.; Sazonov, N. V.; Schegolev, L. M.; Semenov, A. M.; Semenov, E. P.; Senkov, D. V.; Serdakov, L. E.; Serednyakov, S. S.; Shaftan, T. V.; Sharma, S.; Shichkov, D. S.; Shiyankov, S. V.; Shvedov, D. A.; Simonov, E. A.; Singh, O.; Sinyatkin, S. V.; Smaluk, V. V.; Sukhanov, A. V.; Tian, Y.; Tsukanova, L. A.; Vakhrushev, R. V.; Vobly, P. D.; Utkin, A. V.; Wang, G.; Wahl, W.; Willeke, F.; Yaminov, K. R.; Yong, H.; Zhuravlev, A.; Zuhoski, P.

    The National Synchrotron Light Source II is a third generation light source, which was constructed at Brookhaven National Laboratory. This project includes a highly-optimized 3 GeV electron storage ring, linac preinjector, and full-energy synchrotron injector. Budker Institute of Nuclear Physics built and delivered the booster for NSLS-II. The commissioning of the booster was successfully completed. This paper reviews fulfilled work by participants.

  10. Silver precipitation from electrolytic effluents; Precipitacion de plata de efluentes electroliticos

    Energy Technology Data Exchange (ETDEWEB)

    Rivera, I.; Patino, F.; Cruells, M.; Roca, A.; Vinals, J.

    2004-07-01

    The recovery of silver contained in electrolytic effluents is attractive due to its high economic value. These effluents are considered toxic wastes and it is not possible to dump them directly without any detoxification process. One of the most important way for silver recovery is the precipitation with sodium ditionite, sodium borohidride or hydrazine monohidrate. In this work, the most significant aspects related to the use of these reagents is presented. Results of silver precipitation with sodium ditionite from effluents containing thiosulfate without previous elimination of other species are also presented. silver concentration in the final effluents w <1 ppm. (Author) 15 refs.

  11. Arsenic precipitation from metallurgical effluents; Precipitacion de arsenico desde efluentes metalurgicos

    Energy Technology Data Exchange (ETDEWEB)

    Navarro, P.; Vargas, C.; Araya, E.; Martin, I.; Alguacil, F. J.

    2004-07-01

    In the mining-metallurgical companies different liquid effluents are produced, which can contain a series of dissolved elements that are considered dangerous from an environmental point of view. One of these elements is the arsenic, especially in the state of oxidation +5 that can be precipitated as calcium or iron arsenate. To fulfil the environmental requests it should have in solution a content of arsenic lower than 0,5 mg/l and the obtained solid product should be very stable under the condition in which it will be stored. this work looks for the best conditions of arsenic precipitation, until achieving contents in solution lower than such mentioned concentration. Also, the stability of the precipitates was studied. (Author) 7 refs.

  12. II-VI semiconductor compounds

    CERN Document Server

    1993-01-01

    For condensed matter physicists and electronic engineers, this volume deals with aspects of II-VI semiconductor compounds. Areas covered include devices and applications of II-VI compounds; Co-based II-IV semi-magnetic semiconductors; and electronic structure of strained II-VI superlattices.

  13. About APPLE II Operation

    International Nuclear Information System (INIS)

    Schmidt, T.; Zimoch, D.

    2007-01-01

    The operation of an APPLE II based undulator beamline with all its polarization states (linear horizontal and vertical, circular and elliptical, and continous variation of the linear vector) requires an effective description allowing an automated calculation of gap and shift parameter as function of energy and operation mode. The extension of the linear polarization range from 0 to 180 deg. requires 4 shiftable magnet arrrays, permitting use of the APU (adjustable phase undulator) concept. Studies for a pure fixed gap APPLE II for the SLS revealed surprising symmetries between circular and linear polarization modes allowing for simplified operation. A semi-analytical model covering all types of APPLE II and its implementation will be presented

  14. VATICANO II CONCILIO DOCTRINAL?

    Directory of Open Access Journals (Sweden)

    Horacio Bojorge

    1970-01-01

    Full Text Available It is a century since the army of Victor Manuel invaded Rome and put an end to Vatican I. In this article we try to understand Vatican II linking it to the previous circumtances and binding it to its doctrinal and pastoral character. Vatican II omitted many subjects that seemed important, e. g. not giving any dogmatic definitions. Contrasting with the Tridentine and Vatican I, that were mostly doctrinal, Vatican II was pastoral. But it was also doctrinal as were the two previous also pastoral. The Constitution "Dei Verbum" brings forth the intentions that led John XXIII to summon the Council in 5-8-1962. The world looked confused and agitated. What could the Church do?

  15. Datalogger usando nios ii

    OpenAIRE

    Campoverde Rugel, Luis Enrique; Velásquez Vargas, Washington Adrián; Ponguillo, Ronald

    2013-01-01

    El presente proyecto consiste en la implementación de un Datalogger utilizando el microprocesador NIOS II el cual fue embebido en el FPGA CYCLONE II que se encuentra integrada en la tarjeta de desarrollo ALTERA DE2, el cual obtiene datos de distintos sensores y los almacena en una tarjeta SD Card. Para la realización del proyecto se aplican cuatro etapas. La primera etapa está basada en obtener los datos mediante el uso de sensores y la transmisión usando un PIC, la siguiente etapa se basa...

  16. Results from SAGE II

    International Nuclear Information System (INIS)

    Nico, J.S.

    1994-01-01

    The Russian-American Gallium solar neutrino Experiment (SAGE) began the second phase of operation (SAGE II) in September of 1992. Monthly measurements of the integral flux of solar neutrinos have been made with 55 tonnes of gallium. The K-peak results of the first nine runs of SAGE II give a capture rate of 66 -13 +18 (stat) -7 +5 (sys) SNU. Combined with the SAGE I result of 73 -16 +18 (stat) -7 5 (sys) SNU, the capture rate is 69 -11 +11 (stat) -7 +5 (sys) SNU. This represents only 52%--56% of the capture rate predicted by different Standard Solar Models

  17. Information on Asse II

    International Nuclear Information System (INIS)

    2014-01-01

    The brochure published by BfS describes the actual situation of Asse II with respect to the debate on an interim storage and the status of the realization of a final repository search law. During the visit of the new environment minister Hendricks in the underground facility repository Asse II the issue interim storage site and the retrieval of the corroded casks with radioactive waste were discussed. The challenges for BFS include the acceleration of the retrieval process and the safety of the procedure.

  18. TJ-II project

    International Nuclear Information System (INIS)

    Alejaldre, C.; Gozalo, J.J.A.; Perez, J.B.; Magaria, F.C.; Diaz, J.R.C.; Perez, J.G.; Lopez-Fraguas, A.; Garcia, L.; Krivenski, V.I.; Martin, R.; Navarro, A.P.; Perea, A.; Rodriguez-Yunta, A.; Ayza, M.S.; Varias, A.

    1990-01-01

    The TJ-II device is a medium-size helical-axis stellarator to be built in Madrid. Its main characteristics are potential for high-beta operation; flexibility, i.e., its rotational transform can be varied over a wide range and its shear to some extent; and bean-shaped plasma cross section. The latest understanding of TJ-II physics in the fields of electron cyclotron resonance heating, transport, and magneto-hydrodynamics, and the engineering solutions introduced in its final design are discussed

  19. ECLESIOLOGIA DO VATICANO II

    Directory of Open Access Journals (Sweden)

    Víctor Codina

    2013-01-01

    Full Text Available Não se pode compreender a eclesiologia do Vaticano II sem conhecer a vida, o estilo pastoral e o carisma de João XXIII, que convocou o Concílio e abriu o caminho em direção a uma nova configuração eclesial que acabava com séculos de uma Igreja de Cristandade. O Vaticano II implica uma transição de uma Igreja clerical a uma Igreja Povo de Deus, povo de batizados. A passagem de uma Igreja juridicista e legalista a uma Igreja Mistério de comunhão em Cristo. Mudar de uma Igreja triunfalista e ligada ao poder mundano a uma Igreja vivificada pela força renovadora do Espírito. A Igreja está a caminho rumo ao Reino de Deus juntamente com todos os cristãos e com toda a humanidade. A recepção do Vaticano II supõe uma conversão pastoral: voltar ao Evangelho e abrir-se aos novos sinais dos tempos seguindo o Espírito que inspirou João XXIII. ABSTRACT: You cannot understand the Ecclesiology of Vatican II without knowing the life, the pastoral style and the charisma of John XXIII, who convened the Council and opened the way toward a new ecclesial setting that ended centuries of a church of Christendom. The Vatican II involves a transition from a clerical Church to a “People (baptized people of God” Church. The Vatican II implies the passage from a juridical and legalistic Church to a Church as the Mystery of the communion in Christ. The Vatican II implies the change from a triumphalistic Church and connected to worldly power to a Church vivified by the renewing force of the Spirit. The Church is on its way toward the Kingdom of God together with all Christians and all mankind. The reception of the Vatican II supposes a pastoral conversion: a return to the Gospel and openness to new signs of the times following the Spirit that inspired John XXIII.

  20. Galaxy S II

    CERN Document Server

    Gralla, Preston

    2011-01-01

    Unlock the potential of Samsung's outstanding smartphone with this jargon-free guide from technology guru Preston Gralla. You'll quickly learn how to shoot high-res photos and HD video, keep your schedule, stay in touch, and enjoy your favorite media. Every page is packed with illustrations and valuable advice to help you get the most from the smartest phone in town. The important stuff you need to know: Get dialed in. Learn your way around the Galaxy S II's calling and texting features.Go online. Browse the Web, manage email, and download apps with Galaxy S II's 3G/4G network (or create you

  1. Calculus II For Dummies

    CERN Document Server

    Zegarelli, Mark

    2012-01-01

    An easy-to-understand primer on advanced calculus topics Calculus II is a prerequisite for many popular college majors, including pre-med, engineering, and physics. Calculus II For Dummies offers expert instruction, advice, and tips to help second semester calculus students get a handle on the subject and ace their exams. It covers intermediate calculus topics in plain English, featuring in-depth coverage of integration, including substitution, integration techniques and when to use them, approximate integration, and improper integrals. This hands-on guide also covers sequences and series, wit

  2. Periodontics II: Course Proposal.

    Science.gov (United States)

    Dordick, Bruce

    A proposal is presented for Periodontics II, a course offered at the Community College of Philadelphia to give the dental hygiene/assisting student an understanding of the disease states of the periodontium and their treatment. A standardized course proposal cover form is given, followed by a statement of purpose for the course, a list of major…

  3. Workshop 96. Part II

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-31

    Part II of the seminar proceedings contains contributions in various areas of science and technology, among them materials science in mechanical engineering, materials science in electrical, chemical and civil engineering, and electronics, measuring and communication engineering. In those areas, 6 contributions have been selected for INIS. (P.A.).

  4. Experiment CATETO II

    International Nuclear Information System (INIS)

    Hendriks, J.A.; Freudenreich, W.E.

    1994-03-01

    In the irradiation experiment CATETO II different reduced activation (RA) steels will be irradiated up to 2.5 dpa at a temperature of 300 C. The results of the calculation of the nuclear constants, the reactivity effect, and the activity of the steel samples are presented. (orig.)

  5. Amorphous iron (II) carbonate

    DEFF Research Database (Denmark)

    Sel, Ozlem; Radha, A.V.; Dideriksen, Knud

    2012-01-01

    Abstract The synthesis, characterization and crystallization energetics of amorphous iron (II) carbonate (AFC) are reported. AFC may form as a precursor for siderite (FeCO3). The enthalpy of crystallization (DHcrys) of AFC is similar to that of amorphous magnesium carbonate (AMC) and more...

  6. Workshop 96. Part II

    International Nuclear Information System (INIS)

    1995-12-01

    Part II of the seminar proceedings contains contributions in various areas of science and technology, among them materials science in mechanical engineering, materials science in electrical, chemical and civil engineering, and electronics, measuring and communication engineering. In those areas, 6 contributions have been selected for INIS. (P.A.)

  7. UNISIST II: Special Report.

    Science.gov (United States)

    Hattery, Lowell H., Ed.

    1979-01-01

    The major part of this report of the Intergovernmental Conference on Scientific and Technical Information (UNISIST II), held in Paris May 28-June 1, 1979, focuses on three sets of recommendations which were unanimously approved after combining the recommendations proposed by various groups and blocs: (1) recommendations to the United Nations…

  8. Photosystem II and photoinhibition

    NARCIS (Netherlands)

    Feikema, Willem Onno

    2006-01-01

    Plants harvest light energy and convert it into chemical energy. Light absorption by photosystems I and II (PSI and PSII) results in charge separations in their reaction centers (RCs), initiating a chain of redox reactions with PSI generating the reducing power for CO2 assimilation into sugars, and

  9. La doble originalidad de Rawls The double originality of rawls

    Directory of Open Access Journals (Sweden)

    Van Parijs Phillipe

    1994-12-01

    Full Text Available Este artículo es una introducción crítica a una de las principales respuestas sistemáticas sobre la cuestión de la justicia dentro del pensamiento contemporáneo: el liberalismo igualitario de Rawls. Para Van Parijs, la filosofía política debe ser pertinente, es decir, debe responder a los problemas del mundo sin renunciar al espíritu. En cumplimiento de ese propósito, considera necesario estudiar las fuentes del pensamiento solidarista –marxismo, el utilitarismo y liberalismo igualitario- para responder a los desafíos del libertarianismo, punta de lanza filosófica del pensamiento neoliberal. El texto no se limita a la interpretación: profundiza los diferentes argumentos, contrasta y critica las distintas hipótesis, explora las implicaciones de unas y otras, aclara los puntos en controversia y adapta una actitud de simpatía critica frente a libertarianos y marxistas, liberales y comunitarios. Todo ello para que haya dialogo, sin renunciar a las convicciones personales y sin caer en la invectiva ni en la exégesis.This article is a critical introduction to one of the principal
    systematic answers on the question of justice in contemporary thought: Rawls' egalitarian liberalismo For Van Parijs, political philosophy must have relevance, i.e. it must respond to the problems of the world without ignoring the human spirit. Therefore, he says that we need to study the sources of the solidarity schools of thought -marxism, utilitarianism and egalitarian liberalism- to answer the
    challenge of libertarianism, the philosophical spearhead of neoliberal thinking. The text does not restrict itself to interpretation: it goes deeply into each argument, contrasting and criticizing the various hypotheses made, exploring the implications of each, drawing out points of controversy and adopting an attitude of critical sympathy to libertarians and marxists, liberals and communitarians. He does this to sustain dialogue, wi thout abandoning his personal convictions or falling into invective or exegesis.

  10. Iluminación LED. Un arma de doble filo

    OpenAIRE

    Sánchez de Miguel, Alejandro

    2004-01-01

    La iluminación LED es el futuro de la iluminación. Sin embargo, como toda tecnología, puede usarse de manera correcta o incorrecta. En el caso de los LED, el abaratamiento de la producción de luz podría provocar un aumento descontrolado de la Contaminación lumínica. Por otro, el uso correcto de los LED podría ser la solución al mismo mal por su capacidad de encendido casi instantáneo.

  11. Esquizofrenia en "Lúnula y Violeta". El crecimiento caprichoso del doble

    Directory of Open Access Journals (Sweden)

    Anne Marie Poelen

    2005-01-01

    Full Text Available This article focuses on the “neofantastic” characteristics of this text by Cristina Fernández Cubas and situates it in the context of the Spanish political transition. The text shows the extraordinary capability of the Catalan writer to create a fascinating and threathening atmosphere which provokes an oppresive sensation in its readers, using a very suggestive vocabulary and unusual combinations of nouns and adjectives. The author leaves us in the dark about the final destruction of the schizophrenic main character. We do not know whether it is caused by supernatural events or if the ignorant and hostile environment is responsable. Nevertheless, the writer´s intentions to criticise modern western, patriarchal, society are clear and her text offers an alternative to the dominant male discourse, giving voice to the unexplicable.

  12. European Telecommunications Satellite II (EUTELSAT II)

    Science.gov (United States)

    Laemmel, G.; Brittinger, P.

    1991-01-01

    EUTELSAT II is a regional public telecommunications system for Europe. The services which will be provided are telephone and television. The satellites will be placed at a geostationary orbit within the arcs of 6 degrees east to 19 degrees east or 26 degrees to 36 degrees east. The designed lifetime is 7 years. After separation of the satellites from the launch vehicles, telemetry, telecommand, and ranging will be performed within the S-band frequencies. After positioning of the satellite at its final geostationary orbit, the Ku-band telecommunication equipment will be activated. From this time on, all satellite control operations will be performed in Ku-band. The Deep Space Network (DSN) will support the transfer and drift orbit mission phases. The coverage will consist of the 26-m antennas at Goldstone and Canberra as prime support for the transfer and drift orbits. Maximum support will consist of a 7-day period, plus 14 days of contingency support. Information is given in tabular form for DSN support, frequency assignments, telemetry, command, and tracking support responsibility.

  13. Ni (II) and Cu(II) complexes of

    African Journals Online (AJOL)

    ADOWIE PERE

    ABSTRACT: The objective of this study is to investigate the antimicrobial activity of novel. Schiff base metal complexes. The resistance of micro-organisms to classical antimicrobial compounds poses a challenge to effective management and treatment of some diseases. In line with this, copper (II), nickel (II) and cobalt (II) ...

  14. Toracotomía posterior: doble abordaje vertebral torácico con incisión única Toracotomia posterior: dupla abordagem vertebral torácica com incisão única Posterior thoracotomy: a two-step spinal thoracic approach

    Directory of Open Access Journals (Sweden)

    Mariano Augusto Noel

    2010-09-01

    Full Text Available INTRODUCCIÓN: durante los últimos diez años, hemos utilizado la toracotomía posterior para abordar la porción superior del tórax en procedimientos combinados anteriores y posteriores. Actualmente hemos extendido esta indicación a toda la columna torácica en remplazo de la toracotomía convencional y toracoscopía. OBJETIVO: evaluar el rango de posibilidades y complicaciones asociadas con este nuevo abordaje, que permite combinar la cirugía vertebral torácica anterior y posterior con la misma incisión cutánea posterior. Métodos: fueron evaluados, retrospectivamente, 35 pacientes operados entre los años del 2003 y 2007. En todos se realizó doble abordaje, combinando una toracotomía posterior y abordaje posterior, mediante una sola incisión medial, para diferentes objetivos: descompresión medular, artrodesis, osteotomías o vertebrectomías. Se evaluaron los valores angulares, las etiologías, la edad, los niveles vertebrales, la cantidad de toracotomías y las complicaciones. RESULTADOS: hubo un promedio de edad de 14,1 años (1-65, diez cifosis, valor promedio 96,8 (76-131; 24 escoliosis valor promedio 80 (60-105. Etiología: síndromes genéticos, 11; escoliosis idiopática, 6; neurológicas, 5; congénitas, 4; tumores, 4; fracturas, 2; hernia discal, 1; infección, 1. Toracotomía de 1 nivel 30 doble 5. Nivel superior T3 e inferior T10. Complicaciones: 1 hemotórax y dos infecciones de herida. CONCLUSIÓN: esta vía permite acceder a todo nivel torácico en procedimientos combinados mediante una sola incisión cutánea.INTRODUÇÃO: nos últimos dez anos, foi utilizada a toracotomia posterior para a abordagem da porção superior do tórax em procedimentos combinados anteriores e posteriores. Atualmente, esta indicação tem sido estendida por toda a coluna torácica ao invés da toracotomia convencional e da toracoscopia. OBJETIVO: avaliar as possibilidades e complicações associadas a esta nova abordagem, que permite

  15. Transport phenomena II essentials

    CERN Document Server

    REA, The Editors of

    2012-01-01

    REA's Essentials provide quick and easy access to critical information in a variety of different fields, ranging from the most basic to the most advanced. As its name implies, these concise, comprehensive study guides summarize the essentials of the field covered. Essentials are helpful when preparing for exams, doing homework and will remain a lasting reference source for students, teachers, and professionals. Transport Phenomena II covers forced convention, temperature distribution, free convection, diffusitivity and the mechanism of mass transfer, convective mass transfer, concentration

  16. Information on Asse II

    International Nuclear Information System (INIS)

    2015-01-01

    The information brochure on Asse II describes the situation in the repository for radioactive wastes that was closed by law due to the violations of safety standards. The discussed topics include the necessity of waste retrieval, the problems with public anxiety and public information, the hazard of an uncontrolled water ingress (worst case scenario), the work sites in the cavern, man-machine interactions and the cost of the project.

  17. Information on Asse II

    International Nuclear Information System (INIS)

    2014-01-01

    The information on Asse II include the following topics: The image and what is behind - the barrier building Dammjoch built 1914; Fact finding - underground explorations; concept for a site comparison; Learning from experiences - the final repository projects Asse, Gorleben and Morsleben show what should not be done; At first drilling - thereafter building - progress of the recovery duct; The retrieval can only go on in dialogue with the public.

  18. Heat transfer II essentials

    CERN Document Server

    REA, The Editors of

    1988-01-01

    REA's Essentials provide quick and easy access to critical information in a variety of different fields, ranging from the most basic to the most advanced. As its name implies, these concise, comprehensive study guides summarize the essentials of the field covered. Essentials are helpful when preparing for exams, doing homework and will remain a lasting reference source for students, teachers, and professionals. Heat Transfer II reviews correlations for forced convection, free convection, heat exchangers, radiation heat transfer, and boiling and condensation.

  19. Numerical analysis II essentials

    CERN Document Server

    REA, The Editors of; Staff of Research Education Association

    1989-01-01

    REA's Essentials provide quick and easy access to critical information in a variety of different fields, ranging from the most basic to the most advanced. As its name implies, these concise, comprehensive study guides summarize the essentials of the field covered. Essentials are helpful when preparing for exams, doing homework and will remain a lasting reference source for students, teachers, and professionals. Numerical Analysis II covers simultaneous linear systems and matrix methods, differential equations, Fourier transformations, partial differential equations, and Monte Carlo methods.

  20. Review on technology II

    International Nuclear Information System (INIS)

    Mroziewicz, B.

    1986-01-01

    The most important requirements for the spectral properties of photodetectors are reviewed with particular attention to the fiber optics applications. Data on a number of materials are collected and presented. Pros and cons are pointed out for each type of photodetector-photoconductor, p-i-n photodiode and APD. A review is given of the relevant papers presented in the poster session 'Technology II' of the Symposium

  1. Algebra & trigonometry II essentials

    CERN Document Server

    REA, Editors of

    2012-01-01

    REA's Essentials provide quick and easy access to critical information in a variety of different fields, ranging from the most basic to the most advanced. As its name implies, these concise, comprehensive study guides summarize the essentials of the field covered. Essentials are helpful when preparing for exams, doing homework and will remain a lasting reference source for students, teachers, and professionals. Algebra & Trigonometry II includes logarithms, sequences and series, permutations, combinations and probability, vectors, matrices, determinants and systems of equations, mathematica

  2. EASI graphics - Version II

    International Nuclear Information System (INIS)

    Allensworth, J.A.

    1984-04-01

    EASI (Estimate of Adversary Sequence Interruption) is an analytical technique for measuring the effectiveness of physical protection systems. EASI Graphics is a computer graphics extension of EASI which provides a capability for performing sensitivity and trade-off analyses of the parameters of a physical protection system. This document reports on the implementation of the Version II of EASI Graphics and illustrates its application with some examples. 5 references, 15 figures, 6 tables

  3. BeII** revisited

    International Nuclear Information System (INIS)

    Fischer, C.F.

    1982-01-01

    Doubly excited 1s2snl and 1s2pnl quartet states of BeII** are readily populated in beam-foil experiments and line-rich spectra have been obtained covering 600 to 5500 A wavelength range. In spite of several theoretical calculations a substantial number of observed lines have not been identified. The quartet system in BeII is an intersting one from a theoretical point of view. Three electron systems are simple enough that a fairly high level of accuracy is attainable without the calculations becoming horrendous. The important correlation effects are between the outer two electrons and, to a good approximation, the three-electrons system may be treated as a two-electron system outside a 1s-core. The multi-configuration Hartree-Fock (MCHF) method has been used successfully in a number of studies. Programs are under development that take into account the non-orthogonality of orbitals in the initial and final state, and allow for some non-orthogonal orbitals in a wavefunction expansion. LS dependent relativistic effects are also included. A study of BeII** was undertaken to evaluate the MCHF techniques being developed and to assit in the identification of observed lines. Most of the earlier calculations concentrated on the lower-lying levels. In this work particular attention was given to the more highly-excited states, though calculations for lower-lying states had to be repeated in order to predict life-times

  4. What is LAMPF II

    International Nuclear Information System (INIS)

    Thiessen, H.A.

    1982-08-01

    The present conception of LAMPF II is a high-intensity 16-GeV synchrotron injected by the LAMPF 800-MeV H - beam. The proton beam will be used to make secondary beams of neutrinos, muons, pions, kaons, antiprotons, and hyperons more intense than those of any existing or proposed accelerator. For example, by taking maximum advantage of a thick target, modern beam optics, and the LAMPF II proton beam, it will be possible to make a negative muon beam with nearly 100% duty factor and nearly 100 times the flux of the existing Stopped Muon Channel (SMC). Because the unique features of the proposed machine are most applicable to beams of the same momentum as LAMPF (that is, < 2 GeV/c), it may be possible to use most of the experimental areas and some of the auxiliary equipment, including spectrometers, with the new accelerator. The complete facility will provide improved technology for many areas of physics already available at LAMPF and will allow expansion of medium-energy physics to include kaons, antiprotons, and hyperons. When LAMPF II comes on line in 1990 LAMPF will have been operational for 18 years and a major upgrade such as this proposal will be reasonable and prudent

  5. What is LAMPF II

    Energy Technology Data Exchange (ETDEWEB)

    Thiessen, H.A.

    1982-08-01

    The present conception of LAMPF II is a high-intensity 16-GeV synchrotron injected by the LAMPF 800-MeV H/sup -/ beam. The proton beam will be used to make secondary beams of neutrinos, muons, pions, kaons, antiprotons, and hyperons more intense than those of any existing or proposed accelerator. For example, by taking maximum advantage of a thick target, modern beam optics, and the LAMPF II proton beam, it will be possible to make a negative muon beam with nearly 100% duty factor and nearly 100 times the flux of the existing Stopped Muon Channel (SMC). Because the unique features of the proposed machine are most applicable to beams of the same momentum as LAMPF (that is, < 2 GeV/c), it may be possible to use most of the experimental areas and some of the auxiliary equipment, including spectrometers, with the new accelerator. The complete facility will provide improved technology for many areas of physics already available at LAMPF and will allow expansion of medium-energy physics to include kaons, antiprotons, and hyperons. When LAMPF II comes on line in 1990 LAMPF will have been operational for 18 years and a major upgrade such as this proposal will be reasonable and prudent.

  6. Average [O II] nebular emission associated with Mg II absorbers: dependence on Fe II absorption

    Science.gov (United States)

    Joshi, Ravi; Srianand, Raghunathan; Petitjean, Patrick; Noterdaeme, Pasquier

    2018-05-01

    We investigate the effect of Fe II equivalent width (W2600) and fibre size on the average luminosity of [O II] λλ3727, 3729 nebular emission associated with Mg II absorbers (at 0.55 ≤ z ≤ 1.3) in the composite spectra of quasars obtained with 3 and 2 arcsec fibres in the Sloan Digital Sky Survey. We confirm the presence of strong correlations between [O II] luminosity (L_{[O II]}) and equivalent width (W2796) and redshift of Mg II absorbers. However, we show L_{[O II]} and average luminosity surface density suffer from fibre size effects. More importantly, for a given fibre size, the average L_{[O II]} strongly depends on the equivalent width of Fe II absorption lines and found to be higher for Mg II absorbers with R ≡W2600/W2796 ≥ 0.5. In fact, we show the observed strong correlations of L_{[O II]} with W2796 and z of Mg II absorbers are mainly driven by such systems. Direct [O II] detections also confirm the link between L_{[O II]} and R. Therefore, one has to pay attention to the fibre losses and dependence of redshift evolution of Mg II absorbers on W2600 before using them as a luminosity unbiased probe of global star formation rate density. We show that the [O II] nebular emission detected in the stacked spectrum is not dominated by few direct detections (i.e. detections ≥3σ significant level). On an average, the systems with R ≥ 0.5 and W2796 ≥ 2 Å are more reddened, showing colour excess E(B - V) ˜ 0.02, with respect to the systems with R < 0.5 and most likely trace the high H I column density systems.

  7. Algebra II workbook for dummies

    CERN Document Server

    Sterling, Mary Jane

    2014-01-01

    To succeed in Algebra II, start practicing now Algebra II builds on your Algebra I skills to prepare you for trigonometry, calculus, and a of myriad STEM topics. Working through practice problems helps students better ingest and retain lesson content, creating a solid foundation to build on for future success. Algebra II Workbook For Dummies, 2nd Edition helps you learn Algebra II by doing Algebra II. Author and math professor Mary Jane Sterling walks you through the entire course, showing you how to approach and solve the problems you encounter in class. You'll begin by refreshing your Algebr

  8. Synthesis and spectroscopic studies of biologically active tetraazamacrocyclic complexes of Mn(II, Co(II, Ni(II, Pd(II and Pt(II

    Directory of Open Access Journals (Sweden)

    Monika Tyagi

    2014-01-01

    Full Text Available Complexes of Mn(II, Co(II, Ni(II, Pd(II and Pt(II were synthesized with the macrocyclic ligand, i.e., 2,3,9,10-tetraketo-1,4,8,11-tetraazacycoletradecane. The ligand was prepared by the [2 + 2] condensation of diethyloxalate and 1,3-diamino propane and characterized by elemental analysis, mass, IR and 1H NMR spectral studies. All the complexes were characterized by elemental analysis, molar conductance, magnetic susceptibility measurements, IR, electronic and electron paramagnetic resonance spectral studies. The molar conductance measurements of Mn(II, Co(II and Ni(II complexes in DMF correspond to non electrolyte nature, whereas Pd(II and Pt(II complexes are 1:2 electrolyte. On the basis of spectral studies an octahedral geometry has been assigned for Mn(II, Co(II and Ni(II complexes, whereas square planar geometry assigned for Pd(II and Pt(II. In vitro the ligand and its metal complexes were evaluated against plant pathogenic fungi (Fusarium odum, Aspergillus niger and Rhizoctonia bataticola and some compounds found to be more active as commercially available fungicide like Chlorothalonil.

  9. Removal of Ni (II), Co (II) and Pb (II) ions from aqueous media using ...

    African Journals Online (AJOL)

    Removal of Ni (II), Co (II) and Pb (II) ions from aqueous media using Starch ... The results showed that 0.025 % loaded SSMNPs gave the optimal sorption ... constants (Lagergren and Pseudo-2nd-order) for Ni2+ and Co2+ adsorption were ... Langmuir correlation coefficients showed a better fit for the adsorption isotherms.

  10. Electronics II essentials

    CERN Document Server

    REA, The Editors of

    2012-01-01

    REA's Essentials provide quick and easy access to critical information in a variety of different fields, ranging from the most basic to the most advanced. As its name implies, these concise, comprehensive study guides summarize the essentials of the field covered. Essentials are helpful when preparing for exams, doing homework and will remain a lasting reference source for students, teachers, and professionals. Electronics II covers operational amplifiers, feedback and frequency compensation of OP amps, multivibrators, logic gates and families, Boolean algebra, registers, counters, arithmet

  11. Engineering mathematics-II

    CERN Document Server

    Ganesh, A

    2009-01-01

    About the Book: This book Engineering Mathematics-II is designed as a self-contained, comprehensive classroom text for the second semester B.E. Classes of Visveswaraiah Technological University as per the Revised new Syllabus. The topics included are Differential Calculus, Integral Calculus and Vector Integration, Differential Equations and Laplace Transforms. The book is written in a simple way and is accompanied with explanatory figures. All this make the students enjoy the subject while they learn. Inclusion of selected exercises and problems make the book educational in nature. It shou

  12. Thermodynamics II essentials

    CERN Document Server

    REA, The Editors of

    2013-01-01

    REA's Essentials provide quick and easy access to critical information in a variety of different fields, ranging from the most basic to the most advanced. As its name implies, these concise, comprehensive study guides summarize the essentials of the field covered. Essentials are helpful when preparing for exams, doing homework and will remain a lasting reference source for students, teachers, and professionals. Thermodynamics II includes review of thermodynamic relations, power and refrigeration cycles, mixtures and solutions, chemical reactions, chemical equilibrium, and flow through nozzl

  13. Physics II for dummies

    CERN Document Server

    Holzner, Steven

    2010-01-01

    A plain-English guide to advanced physics. Does just thinking about the laws of motion make your head spin? Does studying electricity short your circuits? Physics II For Dummies walks you through the essentials and gives you easy-to-understand and digestible guidance on this often intimidating course. Thanks to this book, you don?t have to be Einstein to understand physics. As you learn about mechanical waves and sound, forces and fields, electric potential and electric energy, and much more, you?ll appreciate the For Dummies law: The easier we make it, the faster you'll understand it!

  14. Physical chemistry II essentials

    CERN Document Server

    REA, The Editors of

    1992-01-01

    REA's Essentials provide quick and easy access to critical information in a variety of different fields, ranging from the most basic to the most advanced. As its name implies, these concise, comprehensive study guides summarize the essentials of the field covered. Essentials are helpful when preparing for exams, doing homework and will remain a lasting reference source for students, teachers, and professionals. Physical Chemistry II includes reaction mechanisms, theoretical approaches to chemical kinetics, gravitational work, electrical and magnetic work, surface work, kinetic theory, collisional and transport properties of gases, statistical mechanics, matter and waves, quantum mechanics, and rotations and vibrations of atoms and molecules.

  15. Graphics gems II

    CERN Document Server

    Arvo, James

    1991-01-01

    Graphics Gems II is a collection of articles shared by a diverse group of people that reflect ideas and approaches in graphics programming which can benefit other computer graphics programmers.This volume presents techniques for doing well-known graphics operations faster or easier. The book contains chapters devoted to topics on two-dimensional and three-dimensional geometry and algorithms, image processing, frame buffer techniques, and ray tracing techniques. The radiosity approach, matrix techniques, and numerical and programming techniques are likewise discussed.Graphics artists and comput

  16. Thin film processes II

    CERN Document Server

    Kern, Werner

    1991-01-01

    This sequel to the 1978 classic, Thin Film Processes, gives a clear, practical exposition of important thin film deposition and etching processes that have not yet been adequately reviewed. It discusses selected processes in tutorial overviews with implementation guide lines and an introduction to the literature. Though edited to stand alone, when taken together, Thin Film Processes II and its predecessor present a thorough grounding in modern thin film techniques.Key Features* Provides an all-new sequel to the 1978 classic, Thin Film Processes* Introduces new topics, and sever

  17. Statistics II essentials

    CERN Document Server

    Milewski, Emil G

    2012-01-01

    REA's Essentials provide quick and easy access to critical information in a variety of different fields, ranging from the most basic to the most advanced. As its name implies, these concise, comprehensive study guides summarize the essentials of the field covered. Essentials are helpful when preparing for exams, doing homework and will remain a lasting reference source for students, teachers, and professionals. Statistics II discusses sampling theory, statistical inference, independent and dependent variables, correlation theory, experimental design, count data, chi-square test, and time se

  18. Data structures II essentials

    CERN Document Server

    Smolarski, Dennis C

    2012-01-01

    REA's Essentials provide quick and easy access to critical information in a variety of different fields, ranging from the most basic to the most advanced. As its name implies, these concise, comprehensive study guides summarize the essentials of the field covered. Essentials are helpful when preparing for exams, doing homework and will remain a lasting reference source for students, teachers, and professionals. Data Structures II includes sets, trees, advanced sorting, elementary graph theory, hashing, memory management and garbage collection, and appendices on recursion vs. iteration, alge

  19. Computer science II essentials

    CERN Document Server

    Raus, Randall

    2012-01-01

    REA's Essentials provide quick and easy access to critical information in a variety of different fields, ranging from the most basic to the most advanced. As its name implies, these concise, comprehensive study guides summarize the essentials of the field covered. Essentials are helpful when preparing for exams, doing homework and will remain a lasting reference source for students, teachers, and professionals. Computer Science II includes organization of a computer, memory and input/output, coding, data structures, and program development. Also included is an overview of the most commonly

  20. Synthesis and spectral studies of manganese(II), cobalt(II), nickel(II), copper(II), zinc(II), cadmium(II) and mercury(II) complexes of 4-oxo-4H-1-benzopyran-3-carboxaldehyde hydrazone derivatives

    International Nuclear Information System (INIS)

    Nawar, N.; Khattab, M.A.; Bekheit, M.M.; El-Kaddah, A.H.

    1996-01-01

    A few complexes of Mn(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II) with 4-oxo-4H-1-benzopyran-3-(carboxaldehyde-4-chlorobenzylhydrazone) (BCBH) and 4-oxo-4H-1-benzopyran-3-(carboxaldehyde-4-methylbenzylhydrazone) (BMBH) have been synthesised and characterized by elemental analysis, molar conductivities, magnetic measurements and infrared (IR) and visible spectral studies. The IR spectra show that BCBH and BMBH behave as bidentate ligands either in the keto or enol form. (author). 24 refs., 2 tabs

  1. Evaluación de vacas de doble propósito de genotipos Holstein x Cebú en sistemas de pastoreo arborizado: I. Primíparas Evaluation of double-purpose Holstein x Zebu cows in grazing systems with trees: I. Primiparous

    Directory of Open Access Journals (Sweden)

    L Simón

    2010-03-01

    Full Text Available Con el objetivo de evaluar el comportamiento productivo y reproductivo de diferentes genotipos raciales de doble propósito de los cruzamientos Holstein x Cebú se seleccionaron 75 novillas gestantes, 25 por grupo de los genotipos Siboney (5/8 H x 3/8 C, Mambí (¾ H x ¼ C y Siboney mestizo (5/8 H x 3/8 C, en un diseño totalmente aleatorizado, las cuales conformaron un grupo común con acceso al mismo manejo y alimentación. Las novillas se incorporaron a la reproducción cuando alcanzaron 300 kg de peso vivo y una edad promedio de 28,6 meses; estas fueron manejadas en una vaquería arborizada, con una carga de 1,6 UGM/ha, y rotaron en 28 cuartones. Mensualmente se midió la disponibilidad de pastos y la oferta diaria de los forrajes y los suplementos. Se controló la condición corporal y se midió el perímetro toráxico; la producción de leche por vaca se comprobó quincenalmente, y se determinó la duración y producción por lactancia y los indicadores reproductivos. El genotipo Mambí fue superior (PWith the objective of evaluating the productive and reproductive performance of different double purpose breed genotypes from the Holstein x Zebu crossings, 75 pregnant heifers were selected, 25 per group from genotypes Siboney (5/8 H x 3/8 Z, Mambí (¾ H x ¼ Z and crossbred Siboney (5/8 H x 3/8 Z, in a completely randomized design, which made up a common group with access to the same management and feeding. The heifers were incorporated to reproduction after reaching 300 kg live weight and an average age of 28,6 months; they were managed in a dairy unit with trees, with a stocking rate of 1,6 animals/ha, and rotated in 28 paddocks. Pasture availability and daily offer of forages and supplements were measured monthly. Body condition was controlled and the thoracic perimeter was measured; milk production per cow was fortnightly checked, and the lactation duration and production and reproductive indicators were determined. The Mamb

  2. Redes de innovación y transferencia tecnológica en sistemas bovinos de carne y doble propósito en Michoacán, México Networks of innovation and technological transference in meat and double-purpose cattle systems in Michoacán, Mexico

    Directory of Open Access Journals (Sweden)

    G Salas

    2008-03-01

    Full Text Available Ante la necesidad de mejorar la competitividad del sistema producto bovinos de carne y doble propósito en el Estado de Michoacán (México, se propone la metodología de redes de innovación para el análisis socioeconómico y la transferencia de tecnologías de este sistema; a través de esta, se identifica e integra a todos los actores importantes y las interdependencias entre ellos, con el fin de fortalecer su competitividad, al dinamizar el proceso de transferencia de tecnologías. Para ello se aplicaron encuestas a 490 productores integrantes de 46 grupos, distribuidos en 13 municipios de la región de Trópico seco del Estado, y se realizó su posterior validación con productores y técnicos. El nivel de escolaridad de los productores fue muy bajo (tercer grado de primaria y la problemática detectada se distribuyó en los aspectos sanitarios, reproductivos, nutricionales, mercado e infraestructura. Asimismo, se observó que las unidades de producción eran altamente heterogéneas, lo que dificulta la aplicación de una innovación de manera general, y se evidenció un bajo índice de adopción de innovaciones (Before the need to improve the competitiveness of the product meat and double-purpose cattle systems in the State of Michoacán (Mexico, the technology of innovation networks for the socioeconomic analysis and technology transference of this system is proposed. Through it all the important actors and the interdependences among them are identified and integrated, with the objective of enhancing their competitiveness, by expediting the process of technology transference. For that surveys were applied to 490 producers integrating 46 groups, distributed in 13 municipalities of the dry Tropic region of the State, and its later validation with producers and technicians was made. The education level of the producers was very low (third grade of elementary school and the problem detected was distributed in the health, reproductive

  3. Deposición transversal de líquido de las boquillas de doble abanico TTJ60-11004 y TTJ60-11002 en distintas condiciones operacionales The transversal spray deposition of double plain spurt nozzles TTJ60-11004 and TTJ60-11002 in different operational conditions

    Directory of Open Access Journals (Sweden)

    R.G. Viana

    2009-06-01

    Full Text Available El objetivo de este trabajo fue el de evaluar la deposición transversal de caldo de las boquillas pulverizadoras de doble abanico TTJ60-11004 y TTJ60-11002 en distintas condiciones operacionales. Se utilizaron 5 muestras de cada boquilla pulverizadora siendo considerada cada unidad, una repetición. La distribución de caldo fue evaluada por medio de una mesa de evaluación de distribución construida de acuerdo con la norma ISO 56821. Se evaluó el perfil de distribución individual, la distribución volumétrica simulada de la superposición de los chorros por medio del coeficiente de variación (CV% de los volúmenes colectados, el caudal y el ángulo de abertura de los chorros. Las condiciones operacionales fueron: presión de trabajo de 200, 300 y 400 Kpa, altura de 30, 40 y 50 cm en relación al blanco y espaciamiento entre boquillas simulados en Software (Microsoft Excel entre 45 y 100 cm. Las boquillas presentaron perfil individual descontinuo con la mayor deposición de líquido en la región central y reducción del volumen gradual en dirección a las extremidades. El aumento de la presión promovió alargamiento del perfil y de la franja de aplicación. Las boquillas proporcionaron perfil uniforme que dependió del espaciamiento entre las boquillas, con valores menores con reducción en el espaciamiento y en presiones mayores. El caudal y el ángulo del chorro aumentaron con el incremento en la presión.The objective of this work was evaluate the transversal spray deposition of double plain spurt nozzles TTJ60-11004 and TTJ60-11002 in different operational conditions. Was used five samples of each nozzle and considerate a unite one repetition. The spray deposition was evaluate on a table of evaluation distribution constructed in accordance with norm ISO 5682-1. Was evaluate a single spray distribution, volumetric distribution of the overlapping spurts by means of the coefficient of variation (CV%, outflow and angle of opening of the

  4. Evaluation of the computerized procedures Manual II (COPMA II)

    International Nuclear Information System (INIS)

    Converse, S.A.

    1995-11-01

    The purpose of this study was to evaluate the effects of a computerized procedure system, the Computerized Procedure Manual II (COPMA-II), on the performance and mental workload of licensed reactor operators. To evaluate COPMA-II, eight teams of two operators were trained to operate a scaled pressurized water reactor facility (SPWRF) with traditional paper procedures and with COPMA-II. Following training, each team operated the SPWRF under normal operating conditions with both paper procedures and COPMA-II. The teams then performed one of two accident scenarios with paper procedures, but performed the remaining accident scenario with COPMA-II. Performance measures and subjective estimates of mental workload were recorded for each performance trial. The most important finding of the study was that the operators committed only half as many errors during the accident scenarios with COPMA-II as they committed with paper procedures. However, time to initiate a procedure was fastest for paper procedures for accident scenario trials. For performance under normal operating conditions, there was no difference in time to initiate or to complete a procedure, or in the number of errors committed with paper procedures and with COPMA-II. There were no consistent differences in the mental workload ratings operators recorded for trials with paper procedures and COPMA-II

  5. RTNS-II utilization

    International Nuclear Information System (INIS)

    Doran, D.G.; Panayotou, N.F.; Powell, R.W.

    1979-12-01

    The objective of the several RTNS-II irradation programs is to maximize information gained from the small test volume available in this unique irradiation facility for application in the fusion materials program. While this facility provides the highest 14 MeV neutron flux available, the flux is generally too low and the irradiation volume too small for testing of engineering materials. Emphasis, therefore, is on identifying damage mechanisms of high energy neutrons and correlating them quantitatively with effects produced by fission neutrons. The information gained will be used to evaluate and calibrate damage and correlation models under development. The scope of the program includes in-situ experiments, postirradiation experiments, irradiation temperatures ranging from 4 0 K to 1,000 0 K, and fluences ranging from 3 x 10 16 to about 3 x 10 19 n/cm 2

  6. Belle II Software

    International Nuclear Information System (INIS)

    Kuhr, T; Ritter, M

    2016-01-01

    Belle II is a next generation B factory experiment that will collect 50 times more data than its predecessor, Belle. The higher luminosity at the SuperKEKB accelerator leads to higher background levels and requires a major upgrade of the detector. As a consequence, the simulation, reconstruction, and analysis software must also be upgraded substantially. Most of the software has been redesigned from scratch, taking into account the experience from Belle and other experiments and utilizing new technologies. The large amount of experimental and simulated data requires a high level of reliability and reproducibility, even in parallel environments. Several technologies, tools, and organizational measures are employed to evaluate and monitor the performance of the software during development. (paper)

  7. Inside ISIS II

    CERN Multimedia

    1981-01-01

    ISIS stands for Identification of Secondaries by Ionization Sampling. It was a drift chamber with an active volume of about 40 m3 built by Oxford University as a particle identifier for the European Hybrid Spectrometer (EHS). The photo shows the electrostatic grading structure and the central anode-wire plane, with Roger Giles standing just under it (Annual Report 1981 p. 57, Fig. 4). ISIS-II differed from the prototype ISIS-I only in the depth of the track (4 m instead of 1 m) thus extending the momentum range for particle identification to 50 GeV/c. See Nucl. Instr. and Meth. 224 (1984) 396, and Nucl. Instr. and Meth. 258 (1987) 26.

  8. Water radiological surveillance (II)

    International Nuclear Information System (INIS)

    Pablo San Martin de, M.

    2008-01-01

    This paper summarizes the characteristics of the Environmental Surveillance Radiological Networks (ESRN) currently operating in CEDEX. In the first part, the Spanish Continental Waters ESRN has been presented. This second one describes Spanish Costal Waters ESRN and the High Sensitivity Networks in Continental and Marine Waters. It also presents the Radiological Surveillance of Drinking Waters that CEDEX carries out in waters of public consumption management by the Canal de Isabel II (CYII) and by the Mancomunity of Canals Taibilla (M.C.T.). The legislation applicable in each case is reviewed as well. Due to its extension the article has been divided into two parts. As Spanish Continental Waters ESRN has been reviewed in the first part, the others ESRN are discussed in this second one. (Author) 10 refs

  9. PEP-II Alignment

    CERN Document Server

    Gaydosh, M

    2003-01-01

    The PEP-II Asymmetric B-factory consists of two independent storage rings, one located atop the other in the 2200m-circumference PEP tunnel. The high-energy ring, which stores a 9-GeV electron beam, is an upgrade of the existing PEP collider. It re-utilizes all of the PEP magnets and incorporates a state-of-the-art copper vacuum chamber and a new RF system capable of supporting a one-amp stored beam. The low-energy ring, which stores 3.1-GeV positrons, is new construction. Injection is achieved by extracting electrons and positrons at collision energies from the SLC and transporting them each in a dedicated bypass line. The low-emittance SLC beams will be used for the injection process.

  10. Stage II Seminoma

    International Nuclear Information System (INIS)

    Sagerman, R.H.; Kotlove, D.J.; Regine, W.; Chung, C.T.; King, G.A.; Dalai, P.S.

    1988-01-01

    Between 1966 and 1985, 32 patients with stage II (21 A,11 B) testicular seminoma were treated with postorchiectomy irradiation to the retroperitoneal and ipsilateral iliac nodes; 28 received elective mediastinal-supraclavicular irradiation. The median follow-up was 8 1/2 years; 29 patients were followed up for over 3 years and 24 for over 5 years. Twenty-eight patients remain alive and well and four have die, two of a second primary cancer. Two patients developed recurrent seminoma in the mediastinum; these patients showed a variant lymphangiographic pattern. Both remain well after further irradiation or irradiation plus chemotherapy. A third patient developed nonseminomatous ''recurrence'' in the radiation field and is well after chemotherapy

  11. Phase II Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Schuknecht, Nate [Project Manager; White, David [Principle Investigator; Hoste, Graeme [Research Engineer

    2014-09-11

    The SkyTrough DSP will advance the state-of-the-art in parabolic troughs for utility applications, with a larger aperture, higher operating temperature, and lower cost. The goal of this project was to develop a parabolic trough collector that enables solar electricity generation in the 2020 marketplace for a 216MWe nameplate baseload power plant. This plant requires an LCOE of 9¢/kWhe, given a capacity factor of 75%, a fossil fuel limit of 15%, a fossil fuel cost of $6.75/MMBtu, $25.00/kWht thermal storage cost, and a domestic installation corresponding to Daggett, CA. The result of our optimization was a trough design of larger aperture and operating temperature than has been fielded in large, utility scale parabolic trough applications: 7.6m width x 150m SCA length (1,118m2 aperture), with four 90mm diameter × 4.7m receivers per mirror module and an operating temperature of 500°C. The results from physical modeling in the System Advisory Model indicate that, for a capacity factor of 75%: The LCOE will be 8.87¢/kWhe. SkyFuel examined the design of almost every parabolic trough component from a perspective of load and performance at aperture areas from 500 to 2,900m2. Aperture-dependent design was combined with fixed quotations for similar parts from the commercialized SkyTrough product, and established an installed cost of $130/m2 in 2020. This project was conducted in two phases. Phase I was a preliminary design, culminating in an optimum trough size and further improvement of an advanced polymeric reflective material. This phase was completed in October of 2011. Phase II has been the detailed engineering design and component testing, which culminated in the fabrication and testing of a single mirror module. Phase II is complete, and this document presents a summary of the comprehensive work.

  12. Effect of Cu(II), Cd(II) and Zn(II) on Pb(II) biosorption by algae Gelidium-derived materials.

    Science.gov (United States)

    Vilar, Vítor J P; Botelho, Cidália M S; Boaventura, Rui A R

    2008-06-15

    Biosorption of Pb(II), Cu(II), Cd(II) and Zn(II) from binary metal solutions onto the algae Gelidium sesquipedale, an algal industrial waste and a waste-based composite material was investigated at pH 5.3, in a batch system. Binary Pb(II)/Cu(II), Pb(II)/Cd(II) and Pb(II)/Zn(II) solutions have been tested. For the same equilibrium concentrations of both metal ions (1 mmol l(-1)), approximately 66, 85 and 86% of the total uptake capacity of the biosorbents is taken by lead ions in the systems Pb(II)/Cu(II), Pb(II)/Cd(II) and Pb(II)/Zn(II), respectively. Two-metal results were fitted to a discrete and a continuous model, showing the inhibition of the primary metal biosorption by the co-cation. The model parameters suggest that Cd(II) and Zn(II) have the same decreasing effect on the Pb(II) uptake capacity. The uptake of Pb(II) was highly sensitive to the presence of Cu(II). From the discrete model it was possible to obtain the Langmuir affinity constant for Pb(II) biosorption. The presence of the co-cations decreases the apparent affinity of Pb(II). The experimental results were successfully fitted by the continuous model, at different pH values, for each biosorbent. The following sequence for the equilibrium affinity constants was found: Pb>Cu>Cd approximately Zn.

  13. Aerospace Systems Monitor, Phase II

    Data.gov (United States)

    National Aeronautics and Space Administration — Proposal Title: Aerospace Systems Monitor PHASE 1 Technical Abstract: This Phase II STTR project will continue development and commercialization of the Aerospace...

  14. Lead (II) and nickel (II) adsorption kinetics from aqueous metal ...

    African Journals Online (AJOL)

    This paper discusses the kinetics of lead (II) and Nickel (II) ions adsorption from aqueous solutions using chemically modified and unmodified agricultural adsorbents at 28°C, pH 6.2 and 0.01M NaCl ionic strength. The removal of the two metals were found to increase with increase in chemical modification, the sequence ...

  15. Solar Type II Radio Bursts and IP Type II Events

    Science.gov (United States)

    Cane, H. V.; Erickson, W. C.

    2005-01-01

    We have examined radio data from the WAVES experiment on the Wind spacecraft in conjunction with ground-based data in order to investigate the relationship between the shocks responsible for metric type II radio bursts and the shocks in front of coronal mass ejections (CMEs). The bow shocks of fast, large CMEs are strong interplanetary (IP) shocks, and the associated radio emissions often consist of single broad bands starting below approx. 4 MHz; such emissions were previously called IP type II events. In contrast, metric type II bursts are usually narrowbanded and display two harmonically related bands. In addition to displaying complete dynamic spectra for a number of events, we also analyze the 135 WAVES 1 - 14 MHz slow-drift time periods in 2001-2003. We find that most of the periods contain multiple phenomena, which we divide into three groups: metric type II extensions, IP type II events, and blobs and bands. About half of the WAVES listings include probable extensions of metric type II radio bursts, but in more than half of these events, there were also other slow-drift features. In the 3 yr study period, there were 31 IP type II events; these were associated with the very fastest CMEs. The most common form of activity in the WAVES events, blobs and bands in the frequency range between 1 and 8 MHz, fall below an envelope consistent with the early signatures of an IP type II event. However, most of this activity lasts only a few tens of minutes, whereas IP type II events last for many hours. In this study we find many examples in the radio data of two shock-like phenomena with different characteristics that occur simultaneously in the metric and decametric/hectometric bands, and no clear example of a metric type II burst that extends continuously down in frequency to become an IP type II event. The simplest interpretation is that metric type II bursts, unlike IP type II events, are not caused by shocks driven in front of CMEs.

  16. Recent results from AMANDA II

    International Nuclear Information System (INIS)

    Hanson, K.; Ahrens, J.; Bai, X.; Barwick, S.W.; Becka, T.; Becker, K.-H.; Bernardini, E.; Bertrand, D.; Binon, F.; Biron, A.; Boeser, S.; Botner, O.; Bouhali, O.; Burgess, T.; Carius, S.; Castermans, T.; Chen, A.; Chirkin, D.; Conrad, J.; Cooley, J.; Cowen, D.F.; Davour, A.; De Clercq, C.; De Young, T.; Desiati, P.; Dewulf, J.-P.; Doksus, P.; Ekstroem, P.; Feser, T.; Gaisser, T.K.; Gaug, M.; Gerhardt, L.; Goldschmidt, A.; Hallgren, A.; Halzen, F.; Hanson, K.; Hardtke, R.; Hauschildt, T.; Hellwig, M.; Herque, P.; Hill, G.C.; Hulth, P.O.; Hundertmark, S.; Jacobsen, J.; Karle, A.; Koci, B.; Koepke, L.; Kuehn, K.; Kowalski, M.; Lamoureux, J.I.; Leich, H.; Leuthold, M.; Lindahl, P.; Liubarsky, I.; Madsen, J.; Marciniewski, P.; Matis, H.S.; McParland, C.P.; Minaeva, Y.; Miocinovic, P.; Morse, R.; Nahnhauer, R.; Neunhoeffer, T.; Niessen, P.; Nygren, D.R.; Ogelman, H.; Olbrechts, Ph.; Perez de los Heros, C.; Pohl, A.C.; Price, P.B.; Przybylski, G.T.; Rawlins, K.; Resconi, E.; Rhode, W.; Ribordy, M.; Richter, S.; Rodriguez Martino, J.; Ross, D.; Sander, H.-G.; Schmidt, T.; Schneider, D.; Schwarz, R.; Silvestri, A.; Solarz, M.; Spiczak, G.M.; Spiering, C.; Steele, D.; Steffen, P.; Stokstad, R.G.; Sudhoff, P.; Sulanke, K.-H.; Taboada, I.; Thollander, L.; Tilav, S.; Walck, C.; Weinheimer, C.; Wiebusch, C.H.; Wiedemann, C.; Wischnewski, R.; Wissing, H.; Woschnagg, K.; Yodh, G.; Young, S.

    2003-01-01

    We present new data taken with the AMANDA-II neutrino telescope array. The AMANDA-II upgrade was completed at the beginning of 2000. It significantly extends the sensitivity of the 10-string AMANDA-B10 detector to high- and ultrahigh-energy neutrino fluxes into regions of interest for probing current astrophysical models which remain unexplored by other experiments

  17. Synthesis, characterization and thermal studies of nickel (II), copper (II), zinc (II) and cadmium (II) complexes with some mixed ligands

    International Nuclear Information System (INIS)

    Mitra, Samiran; Kundu, Parimal; Singh, Rajkumar Bhubon

    1998-01-01

    Dichloro-(DCA) and trichloroacetate(TCA) -cyclic ligand morpholine (Morph)/thiomorpholine (Tmorph)/methylmorpholine (Mmorph)/dimethyl-piperazine (DMP) complexes of nickel (II), copper (II), zinc (II) and cadmium (II) with the compositions [Ni(tmorph) 2 (DCA) 2 ], [Ni(tmorph) 2 (TCA) 2 ].2H 2 O, [Cu(DMP) 2 (TCA) 2 ],[ML 2 X 2 ].nH 2 O where M=Zn II or Cd II , L=Morph, DMP or tmorph and X=DCA or TCA and n=O except in case of [Cd (Morph) 2 (TCA) 2 ] where n=1 have been synthesised. Some intermediate complexes have been isolated by temperature arrest technique (pyrolysis) and characterised. Configurational and conformational changes have been studied by elemental analyses, IR and electronic spectra, magnetic moment data (in the case of Ni(II) and Cu(II) complexes) and thermal analysis. E a * , ΔH, and ΔS for the decomposition reaction of these complexes are evaluated and the stability of the complexes with respect to activation energy has also been compared. The linear correlation has been found between E a * and ΔS for the decomposition of the complexes. (author)

  18. Dust in H II regions

    International Nuclear Information System (INIS)

    Isobe, S.

    1977-01-01

    Several pieces of evidence indicate that H II regions may contain dust: 1) the continuum light scattered by dust grains (O'Dell and Hubbard, 1965), 2) thermal radiation from dust grains at infrared wavelengths (Ney and Allen, 1969), 3) the abnormal helium abundance in some H II regions (Peimbert and Costero, 1969), etc. Although observations of the scattered continuum suggest that the H II region cores may be dust-free, dust grains and gas must be well mixed in view of the infrared observations. This difficulty may be solved by introducing globules with sizes approximately 0.001 pc. These globules and the molecular clouds adjacent to H II regions are the main sources supplying dust to H II regions. (Auth.)

  19. RTNS-II operations guidebook

    International Nuclear Information System (INIS)

    Heikkinen, D.W.

    1985-01-01

    This guidebook is intended to provide training criteria, procedures and guidelines for operation of the RTNS-II neutron sources and ancilliary equipment. Use of this document requires full knowledge of the RTNS-II Facility Safety Procedure (FSP) and any Operational Safety Procedures (OSP) in effect. The RTNS-II FSP defines the hazards which may be encountered at RTNS-II and defines the procedures which must be followed in performing any task including operations. The purpose of this document is to provide a central source of detailed information concerning systems and equipment used in operating the RTNS-II neutron sources on a day-to-day basis. All members of the Operations Group are expected to be familiar with its contents. It is also intended to be used in training new members of the Operations Group

  20. BEPC II positron source

    International Nuclear Information System (INIS)

    Pei Guoxi; Sun Yaolin; Liu Jintong; Chi Yunlong; Liu Yucheng; Liu Nianzong

    2006-01-01

    BEPC II-an upgrade project of the Beijing Electron Positron Collider (BEPC) is a factory type of e + e - collider. The fundamental requirements for its injector linac are the beam energy of 1.89 GeV for on-energy injection and a 40 mA positron beam current at the linac end with a low beam emittance of 1.6 μm and a low energy spread of ±0.5% so as to guarantee a higher injection rate (≥50 mA/min) to the storage ring. Since the positron flux is proportional to the primary electron beam power on the target, the authors will increase the electron gun current from 4A to 10A by using a new electron gun system and increase the primary electron energy from 120 MeV to 240 MeV. The positron source itself is an extremely important system for producing more positrons, including a positron converter target chamber, a 12kA flux modulator, the 7m focusing module with DC power supplies and the support. The new positron production linac from the electron gun to the positron source has been installed into the tunnel. In what follows, the authors will emphasize the positron source design, manufacture and tests. (authors)

  1. Dark matter detection - II

    International Nuclear Information System (INIS)

    Zacek, Viktor

    2015-01-01

    The quest for the mysterious missing mass of the universe has become one of the big challenges of today's particle physics and cosmology. Astronomical observations show that only 1% of the matter of the universe is luminous. Moreover there is now convincing evidence that 85% of all gravitationally observable matter in the universe is of a new exotic kind, different from the 'ordinary' matter surrounding us. In a series of three lectures we discuss past, recent and future efforts made world-wide to detect and/or decipher the nature of Dark Matter. In Lecture I we review our present knowledge of the Dark Matter content of the Universe and how experimenters search for it's candidates; In Lecture II we discuss so-called 'direct detection' techniques which allow to search for scattering of galactic dark matter particles with detectors in deep-underground laboratories; we discuss the interpretation of experimental results and the challenges posed by different backgrounds; In Lecture III we take a look at the 'indirect detection' of the annihilation of dark matter candidates in astrophysical objects, such as our sun or the center of the Milky Way; In addition we will have a look at efforts to produce Dark Matter particles directly at accelerators and we shall close with a look at alternative nonparticle searches and future prospects. (author)

  2. Textos sobre Sostenibilidad II

    Directory of Open Access Journals (Sweden)

    Ciudades para un futuro más sostenible http://habitat.aq.upm.es

    2004-12-01

    This issue assembles a selection of articles publicly available on the website Ciudades para un Futuro más Sostenible (CF+S: http://habitat.aq.upm.es. This selection was originally used as a printed companion guide to the public lecture series on ‘‘Sustainability in the Architecture and Urban Project’’, held on March 2004 and organized by the Madrid School of Architecture within the Initiative for a more Sustainable Architecture and Urbanism (IAU+S. The compilation an overall vision on sustainability presents to average audience. The basic criterion to select these articles was therefore a pedagogical one, including those simpler and clearer papers dealing with all main topics in CF+S. However, due to space limitations, many excellent articles available on the website are unfortunately not included within this selection. CF+S was created in 1996 as a partnership between the Spanish Ministry of Works and Madrid School of Architecture. The objective was to translate into Spanish and publish the experiences selected at the International Award for Best Practices in Improving the Living Environment, organized by United Nations after the Istanbul Conference on Human Settlements (Habitat II. CF+S aims to gather documents concerning any kind of actions and experiences both on the territory and the city actually improving people’s living conditions according to the sustainability concept in its strongest sense. It also offers papers, reports and theoretical reflections on the state of and the possible alternatives to urban development nowadays.

  3. Crystal Structure of Rat Carnitine Palmitoyltransferase II (CPT-II)

    Energy Technology Data Exchange (ETDEWEB)

    Hsiao,Y.; Jogl, G.; Esser, V.; Tong, L.

    2006-01-01

    Carnitine palmitoyltransferase II (CPT-II) has a crucial role in the {beta}-oxidation of long-chain fatty acids in mitochondria. We report here the crystal structure of rat CPT-II at 1.9 Angstroms resolution. The overall structure shares strong similarity to those of short- and medium-chain carnitine acyltransferases, although detailed structural differences in the active site region have a significant impact on the substrate selectivity of CPT-II. Three aliphatic chains, possibly from a detergent that is used for the crystallization, were found in the structure. Two of them are located in the carnitine and CoA binding sites, respectively. The third aliphatic chain may mimic the long-chain acyl group in the substrate of CPT-II. The binding site for this aliphatic chain does not exist in the short- and medium-chain carnitine acyltransferases, due to conformational differences among the enzymes. A unique insert in CPT-II is positioned on the surface of the enzyme, with a highly hydrophobic surface. It is likely that this surface patch mediates the association of CPT-II with the inner membrane of the mitochondria.

  4. Options Study - Phase II

    Energy Technology Data Exchange (ETDEWEB)

    R. Wigeland; T. Taiwo; M. Todosow; W. Halsey; J. Gehin

    2010-09-01

    The Options Study has been conducted for the purpose of evaluating the potential of alternative integrated nuclear fuel cycle options to favorably address the issues associated with a continuing or expanding use of nuclear power in the United States. The study produced information that can be used to inform decisions identifying potential directions for research and development on such fuel cycle options. An integrated nuclear fuel cycle option is defined in this study as including all aspects of the entire nuclear fuel cycle, from obtaining natural resources for fuel to the ultimate disposal of used nuclear fuel (UNF) or radioactive wastes. Issues such as nuclear waste management, especially the increasing inventory of used nuclear fuel, the current uncertainty about used fuel disposal, and the risk of nuclear weapons proliferation have contributed to the reluctance to expand the use of nuclear power, even though it is recognized that nuclear power is a safe and reliable method of producing electricity. In this Options Study, current, evolutionary, and revolutionary nuclear energy options were all considered, including the use of uranium and thorium, and both once-through and recycle approaches. Available information has been collected and reviewed in order to evaluate the ability of an option to clearly address the challenges associated with the current implementation and potential expansion of commercial nuclear power in the United States. This Options Study is a comprehensive consideration and review of fuel cycle and technology options, including those for disposal, and is not constrained by any limitations that may be imposed by economics, technical maturity, past policy, or speculated future conditions. This Phase II report is intended to be used in conjunction with the Phase I report, and much information in that report is not repeated here, although some information has been updated to reflect recent developments. The focus in this Options Study was to

  5. National Energy Plan II

    Energy Technology Data Exchange (ETDEWEB)

    None

    1979-01-01

    This volume contains the Administration's second National Energy Plan, as required by section 801 of the Department of Energy Organization Act (Public Law 95-91). A second volume will contain an assessment of the environmental trends associated with the energy futures reported here. Detailed appendices to the Plan will be published separately. The eight chapters and their subtitles are: Crisis and Uncertainty in the World Energy Future (The Immediate Crisis and the Continuing Problem, The Emergence of the Energy Problem, The Uncertainties of the World Energy Future, World Oil Prices, Consequences for the U.S.); The U.S. Energy Future: The Implications for Policy (The Near-, Mid-, and Long-Term, The Strategy in Perspective); Conservation (Historical Changes in Energy Use, Post-Embargo Changes - In Detail, Conservation Policies and Programs, The Role of Conservation); Oil and Gas (Oil, Natural Gas); Coal and Nuclear (Coal, Nuclear, Policy for Coal and Nuclear Power); Solar and Other Inexhaustible Energy Sources (Solar Energy, Geothermal, Fusion, A Strategy for Inexhaustible Resources); Making Decisions Promptly and Fairly (Managing Future Energy Crises: Emergency Planning, Managing the Current Shortfall: The Iranian Response Plan, Managing the Long-Term Energy Problem: The Institutional Framework, Fairness in Energy Policy, Public Participation in the Development of Energy Policy); and NEP-II and the Future (The Second National Energy Plan and the Nation's Energy Future, The Second National Energy Plan and the Economy, Employment and Energy Policy, The Second National Energy Plan and Individuals, The Second National Energy Plan and Capital Markets, and The Second National Energy Plan and the Environment). (ERA citation 04:041097)

  6. Stiffnites. Part II

    Directory of Open Access Journals (Sweden)

    Maria Teresa Pareschi

    2011-06-01

    Full Text Available

    The dynamics of a stiffnite are here inferred. A stiffnite is a sheet-shaped, gravity-driven submarine sediment flow, with a fabric made up of marine ooze. To infer stiffnite dynamics, order of magnitude estimations are used. Field deposits and experiments on materials taken from the literature are also used. Stiffnites can be tens or hundreds of kilometers wide, and a few centimeters/ meters thick. They move on the sea slopes over hundreds of kilometers, reaching submarine velocities as high as 100 m/s. Hard grain friction favors grain fragmentation and formation of triboelectrically electrified particles and triboplasma (i.e., ions + electrons. Marine lipids favor isolation of electrical charges. At first, two basic assumptions are introduced, and checked a posteriori: (a in a flowing stiffnite, magnetic dipole moments develop, with the magnetization proportional to the shear rate. I have named those dipoles as Ambigua. (b Ambigua are ‘vertically frozen’ along stiffnite streamlines. From (a and (b, it follows that: (i Ambigua create a magnetic field (at peak, >1 T. (ii Lorentz forces sort stiffnite particles into two superimposed sheets. The lower sheet, L+, has a sandy granulometry and a net positive electrical charge density. The upper sheet, L–, has a silty muddy granulometry and a net negative electrical charge density; the grains of sheet L– become finer upwards. (iii Faraday forces push ferromagnetic grains towards the base of a stiffnite, so that a peak of magnetic susceptibility characterizes a stiffnite deposit. (iv Stiffnites harden considerably during their motion, due to magnetic confinement. Stiffnite deposits and inferred stiffnite characteristics are compatible with a stable flow behavior against bending, pinch, or other macro instabilities. In the present report, a consistent hypothesis about the nature of Ambigua is provided.

  7. Efecto de una doble concentración de bióxido de carbono en la atmósfera sobre la disponibilidad de agua en la cuenca del río Guayalejo-Tamesí en el estado de Tamaulipas, México.

    Directory of Open Access Journals (Sweden)

    Pedro Estrada Bellmann

    2003-11-01

    Full Text Available La utilización de combustible fósil para uso industrial y doméstico, así como la quema de biomasa, producen gases de efecto invernadero que absorben y emiten la radiación infrarroja en todas direcciones y atrapan el calor en la atmósfera, originando el cambio climático global. Además de modificar la temperatura, este fenómeno altera la precipitación y humedad atmosférica, el nivel del mar, los patrones de circulación atmosférica y oceánica, la extensión de la cubierta de hielo y nieve y la presencia de eventos extremos. Para hacer frente a este fenómeno y proponer medidas de adaptación y mitigación, en México se llevó a cabo el Estudio de País, cuyo objetivo principal fue la construcción de escenarios de cambio climático regional. Sin embargo, las resoluciones espacial y temporal empleadas en el mismo, impiden su aplicación directa en modelos de balance hidrológico a nivel subcuenca, por lo cual se plantea la realización del presente estudio. Este tiene como objetivo estimar la disponibilidad de agua actual y la proyectada para una doble concentración de bióxido de carbono en la atmósfera, sobre una base estacional, en ocho regiones de la cuenca del Río Guayalejo. Para ello, se desarrollaron ecuaciones de regresión múltiple, relacionando la temperatura y precipitación de cada zona con variables de gran escala. Posteriormente, éstas se aplicaron en el Modelo del Sistema para la Comunidad Climática en su versión 2.0.1, del Centro Nacional para la Investigación Atmosférica, con el fin de obtener las proyecciones de la temperatura y precipitación de cada zona. Los resultados presentan una disminución de la precipitación en la cuenca de 9.49% y un incremento máximo en la temperatura de 1.76°C durante el verano. Sin embargo, se proyecta un incremento de un 15% en la precipitación de invierno y de un 12% anual para la subcuenca del Río Comandante, con disminuciones considerables en el resto de las estaciones

  8. Double-Sampling Method for Carrying Out Quality Control of a Fabrication Process; Methode du Double Echantillonnage pour le Controle de la Qualite d'un Procede de Fabrication; Metod dvukh obraztsov dlya osushchestvleniya kontrolya za kachestvom v protsesse izgotovleniya; Metodo de Muestreo Doble para el Control de Calidad de un Proceso de Fabricacion

    Energy Technology Data Exchange (ETDEWEB)

    Cerrolaza, J. A.; Lago, A.; Montojo, Rosa M. [Junta de Energia Nuclear, Madrid (Spain)

    1966-02-15

    taille des echantillons et le degre de controle sont determines en fonction des risques inherents a la premiere et a la deuxieme condition. Bien que cette methode soit applicable, elle est fort peu pratique quand il s'agit de controler des pieces de reacteurs, car les echantillons qu'elle exige sont de dimensions excessives. Le memoire expose une methode analogue a celle de Cave mais qui consiste a etablir un double echantillonnage dans lequel la taille moyenne de l'echantillon est beaucoup plus reduite. (author) [Spanish] La fabricacion de componentes que han de ser empleados en reactores nucleares presenta dos caracteristicas fundamentales que condicionan el proceso: la exigencia de una calidad muy elevada que limita a valores muy bajos el porcentaje de piezas defectuosas admisibles, y el coste muy alto de cada uno de los componentes. Estas dos condiciones obligan a que el control durante la fabricacion posea una curva de operacion con potencia muy elevada, y, por otra parte, a que el numero de piezas destruidas en cada inspeccion sea un pequeno como se pueda, siempre que se cumpla la condicion anterior. Los metodos usuales de control, basados en fijar el riesgo de primera especie, no son aplicables, ya que en general su eficacia no es suficiente. Cave ha desarrollado un metodo en que, tanto el tamano de las muestras como los limites de control, se fijan en funcion de los riesgos de primera y segunda especie. Este metodo, si bien es aplicable, resulta poco practico en el control de componentes para reactores, ya que se necesitan muestras de un tamano excesivamente grande. En el presente trabajo se desarrolla un metodo semejante al de Cave, pero en el que se establece un muestreo doble, con lo que el tamano medio de la muestra es mucho mas reducido. (author) [Russian] Pri izgotovlenii komponentov dlja ispol'zovanija v reaktorah reshajushhee znachenie imejut dva osnovnyh faktora, a imenno: neobhodimost' obespechit' ochen' vysokoe kachestvo, dopuskajushhee lish' ochen

  9. Kursk Operation Simulation and Validation Exercise - Phase II (KOSAVE II)

    National Research Council Canada - National Science Library

    Bauman, Walter

    1998-01-01

    ... (KOSAVE) Study (KOSAVE II) documents, in this report a statistical record of the Kursk battle, as represented in the KDB, for use as both a standalone descriptive record for historians, and as a baseline for a subsequent Phase...

  10. RTNS-II [Rotating Target Neutron Source II] operational summary

    International Nuclear Information System (INIS)

    Heikkinen, D.W.

    1988-09-01

    The Rotating Target Neutron Source II facility (RTNS-II) operated for over nine years. Its purpose was to provide high intensities of 14 MeV neutrons for materials studies in the fusion energy program. For the period from 1982-1987, the facility was supported by both the US (Department of Energy) and Japan (Ministry of Education, Culture, and Science). RTNS-II contains two accelerator-based neutron sources which use the T(d,n) 4 He reaction. In this paper, we will summarize the operational history of RTNS-II. Typical operating parameters are given. In addition, a brief description of the experimental program is presented. The current status and future options for the facility are discussed. 7 refs., 5 tabs

  11. Chemical speciation of Pb(II, Cd(II, Hg(II, Co(II, Ni(II, Cu(II and Zn(II binary complexes of l-methionine in 1,2-propanediol-water mixtures

    Directory of Open Access Journals (Sweden)

    M. Padma Latha

    2007-04-01

    Full Text Available Chemical speciation of Pb(II, Cd(II, Hg(II, Co(II, Ni(II, Cu(II and Zn(II complexes of L-methionine in 0.0-60 % v/v 1,2-propanediol-water mixtures maintaining an ionic strength of 0.16 M at 303 K has been studied pH metrically. The active forms of ligand are LH2+, LH and L-. The predominant species detected are ML, MLH, ML2, ML2H, ML2H2 and MLOH. Models containing different numbers of species were refined by using the computer program MINIQUAD 75. The best-fit chemical models were arrived at based on statistical parameters. The trend in variation of complex stability constants with change in the dielectric constant of the medium is explained on the basis of electrostatic and non-electrostatic forces.

  12. New instruments at IPNS: POSY II and SAD II

    International Nuclear Information System (INIS)

    Crawford, R.K.; Felcher, G.P.; Kleb, R.; Epperson, J.E.; Thiyagarajan, P.

    1988-01-01

    Three new instruments are currently in varying degrees of development/construction at IPNS. One of these, the Glass, Liquid, and Amorphous Materials Diffractometer (GLAD) is the subject of a separate paper in these Proceedings, and so will not be discussed further here. The other two, a second neutron reflectometer (POSY II) and a second small-angle diffractometer (SAD II) are described briefly below. 5 refs., 1 fig., 1 tab

  13. Integrated Procurement Management System, Version II

    Science.gov (United States)

    Collier, L. J.

    1985-01-01

    Integrated Procurement Management System, Version II (IPMS II) is online/ batch system for collecting developing, managing and disseminating procurementrelated data at NASA Johnson Space Center. Portions of IPMS II adaptable to other procurement situations.

  14. Bose Condensate in He II

    International Nuclear Information System (INIS)

    Svensson, E.C.

    1984-01-01

    The Condensate Saga, now halfway through its fifth decade, is reviewed. The recent neutron-scattering work which has at last convincingly established that there is indeed a Bose Condensate in He II is described

  15. Tier II Chemical Storage Facilities

    Data.gov (United States)

    Iowa State University GIS Support and Research Facility — Facilities that store hazardous chemicals above certain quantities must submit an annual emergency and hazardous chemical inventory on a Tier II form. This is a...

  16. Penetrating Internet Information Services (IIS).

    African Journals Online (AJOL)

    PROF. O. E. OSUAGWU

    2013-12-01

    Dec 1, 2013 ... Information Services (IIS) packages have been presented. Note that while some of ... encompasses a variety of services including FTP, SMTP ..... for Web-based Distributed Authoring ... denial-of-service vulnerabilities we have.

  17. Coordination compounds of cobalt(II), nickel(II), copper(II), and zinc(II) with pantothenic acid

    Energy Technology Data Exchange (ETDEWEB)

    Shabilalov, A.A.; Yunuskhodzhaev, A.N.; Khodzhaev, O.F.; Azizov, M.A.

    1986-11-01

    The compounds Ni(PANA - H)/sub 2/ x 4H/sub 2/O (PANA stands for pantothenic acid, and - H indicates a deprotonated ligand), Cu(PANA - H)/sub 2/ x 2H/sub 2/O, Zn(PANA - H)/sub 2/ x H/sub 2/O, Co(PANA - H)Cl x H/sub 2/O, and Ni(PANA - H)Cl x 3H/sub 2/O have been synthesized on the basis of pantothenic acid and Co(II), Ni(II), Cu(II), and Zn(II) salts in aqueous media. The compounds have been identified by elemental and x-ray diffraction analysis. Some physicochemical properties (solubility, melting point, molar conductivity) of the compounds obtained have been studied. The structure of the compounds isolated has been established on the basis of an analysis of their IR, ESR, and electronic spectra, as well as derivatograms.

  18. Lunar Health Monitor, Phase II

    Data.gov (United States)

    National Aeronautics and Space Administration — During the Phase II Lunar Health Monitor program, Orbital Research will develop a second generation wearable sensor suite for astronaut physiologic monitoring. The...

  19. Australia; Basel II Implementation Assessment

    OpenAIRE

    International Monetary Fund

    2010-01-01

    The key findings of Australia’s BASEL II implementation assessment are presented. The Australian Prudential Regulation Authority (APRA) allocated sufficient resources, including highly skilled staff, prior to the Basel II start date, and the outcome has been a robust and high-quality implementation that has built upon and substantially strengthened the risk-management capabilities of major banks. The quality of leadership and commitment by all involved has been instrumental in the success of ...

  20. Pb(II), Cd(II) and Zn(II) adsorption on low grade manganese ore ...

    African Journals Online (AJOL)

    Low grade manganese ore (LMO) of Orissa containing 58.37% SiO2, 25.05% MnO2, 8.8% Al2O3, and 5.03% Fe2O3 as the main constituents was taken to study its adsorption behaviour for Pb(II), Cd(II) and Zn(II) from aqueous solutions. The XRD studies showed the crystalline phases to be quartz, ß-MnO2, d-MnO2 and ...

  1. Cr(III,Mn(II,Fe(III,Co(II,Ni(II,Cu(II and Zn(II Complexes with Diisobutyldithiocarbamato Ligand

    Directory of Open Access Journals (Sweden)

    Mohammad Tarique

    2011-01-01

    Full Text Available The synthesis of sulphur and nitrogen containing dithiocarbamato ligand derived from diisobutylamine as well as its coordination compounds with 3d series transition metals is presented. These synthesized compounds were characterized on the basis of elemental analysis, conductometric measurements and IR spectral studies. The analytical data showed the stoichiometry 1:2 and 1:3 for the compounds of the types ML2 {M=Mn(II, Co(II, Ni(II, Cu(II and Zn(II} and M'L3{M'=Cr(III and Fe(III} respectively. The conductometric measurements proved the non-electrolytic behaviour of all the compounds. The bidentate nature of dithiocarbamato moiety was confirmed on the basis of IR spectral data.

  2. Mu2e-II Injection from PIP-II

    Energy Technology Data Exchange (ETDEWEB)

    Neuffer, David [Fermilab

    2018-04-26

    We discuss injection of 800 MeV proton beam from PIP-II into the production target for Mu2e-II, assuming a targeting and μ production scenario similar to mu2e. The incoming beam trajectory must be modified from the mu2e parameters to match the focusing fields. Adding a vertical deflection at injection enables the injected beam to reach the target. Other differences from the mu2e system must be considered, including changes in the target structure, the radiation shielding and beam dump/absorber. H- beam should be stripped to p+. Other variations are discussed.

  3. The CDF SVX II upgrade for the Tevatron Run II

    International Nuclear Information System (INIS)

    Bortoletto, Daniela

    1997-01-01

    A microstrip silicon detector SVX II has been proposed for the upgrade of CDF to be installed in 1999 for Run II of the Tevatron. Three barrels of five layers of double-sided silicon microstrip detectors will cover the interaction region. A description of the project status will be presented. Emphasis will be given to the R and D program for silicon sensors which includes capacitance minimization, the study of coupling capacitor integrity, the operation of the detectors in conjunction with the SVXH and SVX2 readout chips in two beam tests and the determination of the detectors performance deterioration due to radiation damage

  4. EBR-II Data Digitization

    Energy Technology Data Exchange (ETDEWEB)

    Yoon, Su-Jong [Idaho National Lab. (INL), Idaho Falls, ID (United States); Rabiti, Cristian [Idaho National Lab. (INL), Idaho Falls, ID (United States); Sackett, John [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2014-08-01

    1. Objectives To produce a validation database out of those recorded signals it will be necessary also to identify the documents need to reconstruct the status of reactor at the time of the beginning of the recordings. This should comprehends the core loading specification (assemblies type and location and burn-up) along with this data the assemblies drawings and the core drawings will be identified. The first task of the project will be identify the location of the sensors, with respect the reactor plant layout, and the physical quantities recorded by the Experimental Breeder Reactor-II (EBR-II) data acquisition system. This first task will allow guiding and prioritizing the selection of drawings needed to numerically reproduce those signals. 1.1 Scopes and Deliverables The deliverables of this project are the list of sensors in EBR-II system, the identification of storing location of those sensors, identification of a core isotopic composition at the moment of the start of system recording. Information of the sensors in EBR-II reactor system was summarized from the EBR-II system design descriptions listed in Section 1.2.

  5. RTNS-II: present status

    International Nuclear Information System (INIS)

    Heikkinen, D.W.; Logan, C.M.

    1980-10-01

    The present status of the RTNS-II facility is described and typical operating parameters are given. A brief discussion is given of the methods used in production of the TiT 2 targets as well as their performance and tritium handling at RTNS-II. The various types of non-interactive beam diagnostics presently in use at the neutron sources are outlined. The on-line computer system which provides a time history of an irradiation and records target performance is described. Examples are listed of several representative experimental programs which have been carried out thus far at RTNS-II. These include both active and passive experiments. Finally, several of the major improvements to the facility made since the beginning of the experimental program are given

  6. STARFIRE-II studies. Summary

    International Nuclear Information System (INIS)

    Baker, C.C.; Brooks, J.N.; Ehst, D.A.; Smith, D.L.; Sze, D.K.

    1985-01-01

    The US Department of Energy's Office of Fusion Energy has initiated several studies during FY-1985 called Tokamak Power System Studies (TPSS). The TPSS is being carried out by several laboratories, universities and industry with the general objective of developing innovative physics and technology concepts to improve the commercial attractiveness of tokamak power reactors. The effort of Argonne National Laboratory, entitled STARFIRE-II, is an effort to update and improve STARFIRE, which was the last comprehensive conceptual design study in the US of a commercial tokamak power plant. The STARFIRE-II effort has developed a number of goals in order to improve fusion commercial power plants based in part on several recent studies. The primary goals for STARFIRE-II are listed

  7. Efectos de los cambios en el patrón de precipitaciones sobre los microorganismos y los procesos del suelo

    OpenAIRE

    Morillas Viñuales, Lourdes

    2014-01-01

    Programa de Doctorado en Biodiversidad y Biología de la Conservación El objetivo de esta tesis doctoral es evaluar los efectos de los cambios en el patrón de precipitación sobre los microbios y sobre una amplia variedad de procesos del suelo en distintos ecosistemas. Para ello, hemos estudiado cuatro zonas diferentes: dos ecosistemas mediterráneos (un pinar y un matorral}, en los que se ha llevado a cabo un estudio de campo observacional no manipulativo y un ecosistema semiárido y otro te...

  8. Distribución espacial del riesgo de precipitaciones extremas en el Pirineo Aragonés Occidental

    OpenAIRE

    Lorente, Adrián; Beguería, Santiago

    1999-01-01

    [ES] Los eventos pluviométricos extremos son episodios lluviosos de gran intensidad capaces de desencadenar procesos geomorfológicos de gran magnitud e importantes consecuencias en pérdidas económicas y humanas, como conocemos por ejemplos recientes e históricos. Estos efectos devastadores son si cabe mayores en áreas de montaña, de gran energía topográfica e inestabilidad geomorfológica. Además de su intensidad, estos episodios se caracterizan por su baja frecuencia temporal y por presentar ...

  9. First results from SAGE II

    International Nuclear Information System (INIS)

    Abdurashitov, J.N.; Faizov, E.L.; Gavrin, V.N.

    1994-01-01

    The Russian-American Gallium solar neutrino Experiment (SAGE) began the second phase of operation (SAGE II) in September of 1992. Monthly measurements of the integral flux of solar neutrinos have been made with 55 tonnes of gallium. The K-peak results of the first five runs of SAGE II give a capture rate of 76 -18 +21 (stat) -7 +5 (sys) SNU. combined with the SAGE I result, the capture rate is 74 -12 +13 (stat) -7 +5 (sys) SNU. This represents only 56%--60% of the capture rate predicted by different Standard Solar Models

  10. Facilities design for TIBER II

    International Nuclear Information System (INIS)

    Thomson, S.L.; Blevins, J.D.

    1987-01-01

    This paper describes the conceptual design of the reactor building and reactor maintenance building for the TIBER II tokamak. These buildings are strongly influenced by the reactor configuration, and their characterization allows a better understanding of the economic and technical implications of the reactor design. Key features of TIBER II that affect the facilities design are the small size and compact arrangement, the use of an external vacuum vessel, and the complete reliance on remote maintenance. The building design incorporates requirements for equipment layout, maintenance operations and equipment, safety, and contamination control. 4 figs

  11. First results from SAGE II

    International Nuclear Information System (INIS)

    Aburashitov, J.N.; Faizov, E.L.; Gavrin, V.N.; Gusev, A.O.; Kalikhov, A.V.; Knodel, T.V.; Knyshenko, I.I.; Kornoukhov, V.N.; Mirmov, I.N.; Pshukov, A.M.; Shalagin, A.M.; Shikhin, A.A.; Timofeyev, P.V.; Veretenkin, E.P.; Vermul, V.M.; Zatsepin, G.T.; Bowles, T.J.; Nico, J.S.; Teasdale, W.A.; Wark, D.L.; Wilkerson, J.F.; Cleveland, B.T.; Daily, T.; Davis, R. Jr.; Lande, K.; Lee, C.K.; Wildenhain, P.W.; Elliott, S.R.; Cherry, M.L.

    1995-01-01

    The Russian-American Gallium solar neutrino Experiment (SAGE) began the second phase of operation (SAGE II) in September of 1992. Monthly measurements of the integral flux of solar neutrinos have been made with 55 tonnes of gallium. The K-peak results of the first five runs of SAGE II give a capture rate of 76 +21 -18 (stat) +5 -7 (sys) SNU. Combined with the SAGE I result, the capture rate is 74 +13 -12 (stat) +5 -7 (sys) SNU. This represents only 56%--60% of the capture rate predicted by different Standard Solar Models. copyright 1995 American Institute of Physics

  12. Extinction of H II regions

    International Nuclear Information System (INIS)

    Israel, F.P.; Kennicutt, R.C.

    1980-01-01

    Visual extinction of H II regions in nine nearby galaxies as derived from the ratio of the radio continuum emission to H-alpha emission is systematically larger than visual extinction deduced from the Balmer lines alone, if one assumes a value Av/E(B-V) 3. An optically-limited sample of about 30 extragalactic H II regions has a mean extinction of 1.7 m in the visual while about 1.2 m is not seen in the reddening of the Balmer lines. Both reddening and extinction decreases with increasing galactic radius, at least for M33 and M101

  13. Synthesis and structural characterization of nickel(II), cobalt(II), Zinc(II), manganese(II), cadmium(II) and uranium(VI) complexes of α-oximinoacetoacet-o/p-anisidide thiosemicarbazone

    International Nuclear Information System (INIS)

    Patel, P.S.; Patel, M.M.; Ray, R.M.

    1993-01-01

    A few metal complexes of α-oximinoacetoacet-o/p-anisidide thiosemicarbazones (OAOATS)/(OAPATS) with Ni(II), Co(II), Zn(II), Mn(II), Hg(II), Cd(II) and UO 2 (II) have been prepared and characterized by elemental analyses, conductivity, differential scanning calorimetry study, thermogravimetric analyses and infrared and electronic spectral measurements in conjunction with magnetic susceptibility measurements at room temperature. They have also been tested for their antimicrobial activities. (author). 24 refs., 2 tabs

  14. Irradiations at RTNS-II

    International Nuclear Information System (INIS)

    Heikkinen, D.W.; Logan, C.M.

    1982-01-01

    The RTNS-II 14-MeV neutron source facility at Lawrence Livermore National Laboratory is described. Average neutron source parameters are outlined. A brief general description of the irradiation program to the present time is given. A short discussion of guidelines for prospective users is also given

  15. DUMAND-II progress report

    International Nuclear Information System (INIS)

    Wilkes, R.J.; Alexander, C.M.; Aoki, T.; Berson, U.; Bosetti, P.; Bolesta, J.; Boynton, P.E.; Bradner, H.; Camerini, U.; Dye, S.T.; Gergin, E.; Gorham, P.W.; Grieder, P.K.F.; Grogan, W.; Hanada, H.; Harris, D.; Hayashino, T.; Hazen, E.; Ito, M.; Jaworski, M.; Jenko, M.; Kawamoto, H.; Kitamura, T.; Kobayakawa, K.; Kondo, S.; Koske, P.; Learned, J.G.; Ley, C.; Lord, J.J.; Lord, R.; Lozic, T.; March, R.; Matsumoto, T.; Matsuno, S.; Mavretic, A.; McCourry, L.; Mignard, M.; Miller, K.; Minkowski, P.; Mitiguy, R.; Mitsui, K.; Narita, S.; Nicklaus, D.

    1993-01-01

    The design, scientific goals, and capabilities of the DUMAND II detector system are described. Construction was authorized by DOE in 1990, and construction of various detector subsystems is under way. Current plans include deployment of the shore cable, junction box and three strings of optical detector modules in 1993, with expansion to the full 9-string configuration about one year later

  16. Tech Area II: A history

    Energy Technology Data Exchange (ETDEWEB)

    Ullrich, R. [Ktech Corp., Albuquerque, NM (United States)

    1998-07-01

    This report documents the history of the major buildings in Sandia National Laboratories` Technical Area II. It was prepared in support of the Department of Energy`s compliance with Section 106 of the National Historic Preservation Act. Technical Area II was designed and constructed in 1948 specifically for the final assembly of the non-nuclear components of nuclear weapons, and was the primary site conducting such assembly until 1952. Both the architecture and location of the oldest buildings in the area reflect their original purpose. Assembly activities continued in Area II from 1952 to 1957, but the major responsibility for this work shifted to other sites in the Atomic Energy Commission`s integrated contractor complex. Gradually, additional buildings were constructed and the original buildings were modified. After 1960, the Area`s primary purpose was the research and testing of high-explosive components for nuclear weapons. In 1994, Sandia constructed new facilities for work on high-explosive components outside of the original Area II diamond-shaped parcel. Most of the buildings in the area are vacant and Sandia has no plans to use them. They are proposed for decontamination and demolition as funding becomes available.

  17. Light harvesting in photosystem II

    NARCIS (Netherlands)

    van Amerongen, H.; Croce, R.

    2013-01-01

    Water oxidation in photosynthesis takes place in photosystem II (PSII). This photosystem is built around a reaction center (RC) where sunlight-induced charge separation occurs. This RC consists of various polypeptides that bind only a few chromophores or pigments, next to several other cofactors. It

  18. TJ-II Library Manual

    International Nuclear Information System (INIS)

    Tribaldos, V.; Milligen, B.Ph., van; Lopez-Fraguas, A.

    1996-01-01

    This report contains a detailed description of the TJ-II library and its routines. The library is written in FORTRAN 77 language and is available in the CRAY J916 and DEC Alpha 8400 computers at CIEMAT. This document also contains some examples of its use. (Author)

  19. Case 22:Type II diabetes

    Science.gov (United States)

    Diabetes mellitus is characterized by elevated blood glucose levels. It is composed of two types depending on the pathogenesis. Type I diabetes is characterized by insulin deficiency and usually has its onset during childhood or teenage years. This is also called ketosis-prone diabetes. Type II diab...

  20. Rahvusvaheline "Scripta manent II" Tallinnas

    Index Scriptorium Estoniae

    2000-01-01

    Eduard Taska 110. sünniaastapäevale pühendatud rahvusvaheline köitekunsti- ja kalligraafianäitus "Scripta manent II" Tallinna Kunstihoones. Köitekunsti osas pälvis "kuldraamatu" Marielle Liivat, ergutusauhinnad: Marje Kask, Kadi Kiipus, Urve Kolde

  1. Recent results from DORIS II

    International Nuclear Information System (INIS)

    Bloom, E.D.

    1985-01-01

    This report contains a brief review of recent results from the ARGUS and Crystal Ball experiments at DORIS II, concentrating on UPSILON(1S) and UPSILON(2S) spectroscopy with a short foray into γγ physics. 18 refs., 10 figs

  2. Paiton II financing locked up

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-04-01

    The 2 x 610 MW Paiton II coal-fired independent power project in Indonesia became a reality last week with the completion of a 1.36 billion dollars commercial financing for the 1.65 billion dollar undertaking. Details of the financing are given. A table lists Indonesia`s independent power projects and their current status.

  3. Elizabeth II / Fagira D. Morti

    Index Scriptorium Estoniae

    Fagira D. Morti, pseud., 1974-

    2006-01-01

    Järjejutt Elizabeth II elust. Järgneb nr. 80, lk. 30-33, nr. 81, lk. 30-32, nr. 82, lk. 34-36, nr. 83, lk. 34-37, nr. 84, lk. 42-45, nr. 85, lk. 36-38, 86, lk. 44-47, nr. 87, lk. 32-35. Nr. 86 ja 87 autor: Helene Wait

  4. Application Programming in AWIPS II

    Science.gov (United States)

    Smit, Matt; McGrath, Kevin; Burks, Jason; Carcione, Brian

    2012-01-01

    Since its inception almost 8 years ago, NASA's Short-term Prediction Research and Transition (SPoRT) Center has integrated NASA data into the National Weather Service's decision support system (DSS) the Advanced Weather Interactive Processing System (AWIPS). SPoRT has, in some instances, had to shape and transform data sets into various formats and manipulate configurations to visualize them in AWIPS. With the advent of the next generation of DSS, AWIPS II, developers will be able to develop their own plugins to handle any type of data. Raytheon is developing AWIPS II to be a more extensible package written mainly in Java, and built around a Service Oriented Architecture. A plugin architecture will allow users to install their own code modules, and (if all the rules have been properly followed) they will work hand-in-hand with AWIPS II as if it were originally built in. Users can bring in new datasets with existing plugins, tweak plugins to handle a nuance or desired new functionality, or create an entirely new visualization layout for a new dataset. SPoRT is developing plugins to ensure its existing NASA data will be ready for AWIPS II when it is delivered, and to prepare for the future of new instruments on upcoming satellites.

  5. Type-II Weyl semimetals.

    Science.gov (United States)

    Soluyanov, Alexey A; Gresch, Dominik; Wang, Zhijun; Wu, QuanSheng; Troyer, Matthias; Dai, Xi; Bernevig, B Andrei

    2015-11-26

    Fermions--elementary particles such as electrons--are classified as Dirac, Majorana or Weyl. Majorana and Weyl fermions had not been observed experimentally until the recent discovery of condensed matter systems such as topological superconductors and semimetals, in which they arise as low-energy excitations. Here we propose the existence of a previously overlooked type of Weyl fermion that emerges at the boundary between electron and hole pockets in a new phase of matter. This particle was missed by Weyl because it breaks the stringent Lorentz symmetry in high-energy physics. Lorentz invariance, however, is not present in condensed matter physics, and by generalizing the Dirac equation, we find the new type of Weyl fermion. In particular, whereas Weyl semimetals--materials hosting Weyl fermions--were previously thought to have standard Weyl points with a point-like Fermi surface (which we refer to as type-I), we discover a type-II Weyl point, which is still a protected crossing, but appears at the contact of electron and hole pockets in type-II Weyl semimetals. We predict that WTe2 is an example of a topological semimetal hosting the new particle as a low-energy excitation around such a type-II Weyl point. The existence of type-II Weyl points in WTe2 means that many of its physical properties are very different to those of standard Weyl semimetals with point-like Fermi surfaces.

  6. Sequestration of Cu(II), Ni(II), and Co(II) by ethyleneimine immobilized on silica

    International Nuclear Information System (INIS)

    Arakaki, Luiza N.H.; Alves, Ana Paula M.; Silva Filho, Edson C. da; Fonseca, Maria G.; Oliveira, Severino F.; Espinola, Jose Geraldo P.; Airoldi, Claudio

    2007-01-01

    Thermodynamic data on interaction of Cu(II), Ni(II), and Co(II) with silica modified with ethyleneimine are obtained by calorimetric titration. The amount of ethyleneimine anchored on silica surface was estimated to be 0.70 mmol g -1 . The enthalpies of binding Ni(II), Cu(II) and Co(II), are -3.59 ± 0.001, -4.88 ± 0.001, and -7.75 ± 0.003 kJ mol -1 , respectively

  7. Solar photocatalytic removal of Cu(II), Ni(II), Zn(II) and Pb(II): Speciation modeling of metal-citric acid complexes

    International Nuclear Information System (INIS)

    Kabra, Kavita; Chaudhary, Rubina; Sawhney, R.L.

    2008-01-01

    The present study is targeted on solar photocatalytic removal of metal ions from wastewater. Photoreductive deposition and dark adsorption of metal ions Cu(II), Ni(II), Pb(II) and Zn(II), using solar energy irradiated TiO 2 , has been investigated. Citric acid has been used as a hole scavenger. Modeling of metal species has been performed and speciation is used as a tool for discussing the photodeposition trends. Ninety-seven percent reductive deposition was obtained for copper. The deposition values of other metals were significantly low [nickel (36.4%), zinc (22.2%) and lead (41.4%)], indicating that the photocatalytic treatment process, using solar energy, was more suitable for wastewater containing Cu(II) ions. In absence of citric acid, the decreasing order deposition was Cu(II) > Ni(II) > Pb(II) > Zn(II), which proves the theoretical thermodynamic predictions about the metals

  8. Radioimmunologic determination of plasmapepsinogen II

    International Nuclear Information System (INIS)

    Patzschke, C.; Berg, U.

    1979-01-01

    Within the frame of this study the pepsinogen II concentration could be determined for the first time with a radioimmunoassay in the plasma. In our normal study group the mean value was 13.91 ng/ml with a variation between 4.08 and 36.19 ng/ml. With increasing patient age a continuous increase of this concentration could be observed. The mean value of 14.99 ng/ml for male patients was by 4.75 ng/ml higher than the mean value of 10.24 ng/ml for female patients. The 24 hour profiles represented for the pepsinogen plasma concentration daily physiologic fluctuations and a stabilisation at night. The effects of meals could not be defined unambiguously. In stimulation tests Pentagastrin provoked in 4 of 9 test persons an increase of the concentration of up to 70% of the basic value. In short-term stress-tests the Pg II concentrations found in the test subjects presented an increase or a decrease. In investigations before or after the same patient underwent an operative procedure, an expressive Pg II decrease (up to 33.74 ng/ml) could be detected. Patients with a total resection of the stomach had only a very low Pg II concentration (less than 3.1 ng/ml). In patients with gastric pathologies a significant difference of the confidence limits was found for the Pg II concentration between superficial gastritis (m = 16.04 ng/ml) and atrophic gastritis (m = 27.38 ng/ml). Compared with various gastric diseases the normal patient group presents a significant difference with reference to the atrophic gastritis or the cancerous stomach. The mean values found in atrophic gastritis or the cancerous stomach. The mean values found in atrophic gastritis and in gastric carcinoma are close to each other and are increased, compared to those measured in the normal patient group. (orig./MG) [de

  9. Synthesis, Characterization, and Biological Activity of Mn(II, Fe(II, Co(II, Ni(II, Cu(II, Zn(II, and Cd(II Complexes of N-Thiophenoyl-N′-Phenylthiocarbohydrazide

    Directory of Open Access Journals (Sweden)

    M. Yadav

    2013-01-01

    Full Text Available Mn(II, Fe(II, Co(II, Ni(II, Cu(II, Zn(II, and Cd(II complex of N-thiophenoyl -N′-phenylthiocarbohydrazide (H2 TPTH have been synthesized and characterized by elemental analysis, magnetic susceptibility measurements, infrared, NMR, electronic, and ESR spectral studies. The complexes were found to have compositions [Mn(H TPTH2], [Co(TPTH (H2O2], [Ni(TPTH (H2O2], [Cu(TPTH], [Zn(H TPTH], [Cd(H TPTH2], and [Fe(H TPTH2(EtOH]. The magnetic and electronic spectral studies suggest square planar geometry for [Cu(TPTH], tetrahedral geometry for [Zn(TPTH] and [Cd(H TPTH2], and octahedral geometry for rest of the complexes. The infrared spectral studies of the 1 : 1 deprotonated complexes suggest bonding through enolic oxygen, thiolato sulfur, and both the hydrazinic nitrogens. Thus, H2TPTH acts as a binegative tetradentate ligand. H2 TPTH and its metal complexes have been screened against several bacteria and fungi.

  10. Digital logic circuit design with ALTERA Quartus II

    International Nuclear Information System (INIS)

    Lee, Seung Ho

    2009-09-01

    This book consists 31 chapters about digital logic circuit with ALTERA Quartus II. It includes the introduction of ALTERA Quartus II, ALTERA Quartus II schematic editor, ALTERA Quartus II compiler, ALTERA Quartus II simulator, ALTERA Quartus II timing analyzer, how to use HBE-COMBO II training and HBE-COMBO II training kit with schematic editor, VHDL grammar and practice of ALTERA Quartus II and HBE-COMBO II training kit with VHDL.

  11. Adsorption of Pb(II), Cu(II), Cd(II), Zn(II), Ni(II), Fe(II), and As(V) on bacterially produced metal sulfides.

    Science.gov (United States)

    Jong, Tony; Parry, David L

    2004-07-01

    The adsorption of Pb(II), Cu(II), Cd(II), Zn(II), Ni(II), Fe(II) and As(V) onto bacterially produced metal sulfide (BPMS) material was investigated using a batch equilibrium method. It was found that the sulfide material had adsorptive properties comparable with those of other adsorbents with respect to the specific uptake of a range of metals and, the levels to which dissolved metal concentrations in solution can be reduced. The percentage of adsorption increased with increasing pH and adsorbent dose, but decreased with increasing initial dissolved metal concentration. The pH of the solution was the most important parameter controlling adsorption of Cd(II), Cu(II), Fe(II), Ni(II), Pb(II), Zn(II), and As(V) by BPMS. The adsorption data were successfully modeled using the Langmuir adsorption isotherm. Desorption experiments showed that the reversibility of adsorption was low, suggesting high-affinity adsorption governed by chemisorption. The mechanism of adsorption for the divalent metals was thought to be the formation of strong, inner-sphere complexes involving surface hydroxyl groups. However, the mechanism for the adsorption of As(V) by BPMS appears to be distinct from that of surface hydroxyl exchange. These results have important implications to the management of metal sulfide sludge produced by bacterial sulfate reduction.

  12. Information on Asse II; Informationen ueber die Schachtanlage Asse II

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2014-07-15

    The information on Asse II include the following topics: The image and what is behind - the barrier building Dammjoch built 1914; Fact finding - underground explorations; concept for a site comparison; Learning from experiences - the final repository projects Asse, Gorleben and Morsleben show what should not be done; At first drilling - thereafter building - progress of the recovery duct; The retrieval can only go on in dialogue with the public.

  13. Type II Supernova Spectral Diversity. II. Spectroscopic and Photometric Correlations

    Science.gov (United States)

    Gutiérrez, Claudia P.; Anderson, Joseph P.; Hamuy, Mario; González-Gaitan, Santiago; Galbany, Lluis; Dessart, Luc; Stritzinger, Maximilian D.; Phillips, Mark M.; Morrell, Nidia; Folatelli, Gastón

    2017-11-01

    We present an analysis of observed trends and correlations between a large range of spectral and photometric parameters of more than 100 type II supernovae (SNe II), during the photospheric phase. We define a common epoch for all SNe of 50 days post-explosion, where the majority of the sample is likely to be under similar physical conditions. Several correlation matrices are produced to search for interesting trends between more than 30 distinct light-curve and spectral properties that characterize the diversity of SNe II. Overall, SNe with higher expansion velocities are brighter, have more rapidly declining light curves, shorter plateau durations, and higher 56Ni masses. Using a larger sample than previous studies, we argue that “Pd”—the plateau duration from the transition of the initial to “plateau” decline rates to the end of the “plateau”—is a better indicator of the hydrogen envelope mass than the traditionally used optically thick phase duration (OPTd: explosion epoch to end of plateau). This argument is supported by the fact that Pd also correlates with s 3, the light-curve decline rate at late times: lower Pd values correlate with larger s 3 decline rates. Large s 3 decline rates are likely related to lower envelope masses, which enables gamma-ray escape. We also find a significant anticorrelation between Pd and s 2 (the plateau decline rate), confirming the long standing hypothesis that faster declining SNe II (SNe IIL) are the result of explosions with lower hydrogen envelope masses and therefore have shorter Pd values. This paper includes data gathered with the 6.5 m Magellan Telescopes located at Las Campanas Observatory, Chile; and the Gemini Observatory, Cerro Pachon, Chile (Gemini Program GS- 2008B-Q-56). Based on observations collected at the European Organisation for Astronomical Research in the Southern Hemisphere, Chile (ESO Programs 076.A-0156, 078.D-0048, 080.A-0516, and 082.A-0526).

  14. Information on Asse II; Informationen ueber die Schachtanlage Asse II

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2015-02-15

    The information brochure on Asse II describes the situation in the repository for radioactive wastes that was closed by law due to the violations of safety standards. The discussed topics include the necessity of waste retrieval, the problems with public anxiety and public information, the hazard of an uncontrolled water ingress (worst case scenario), the work sites in the cavern, man-machine interactions and the cost of the project.

  15. Physicochemical properties of 3,4,5-trimethoxybenzoates of Mn(II, Co(II, Ni(II and Zn(II

    Directory of Open Access Journals (Sweden)

    W. FERENC

    2005-09-01

    Full Text Available The complexes of Mn(II, Co(II, Ni(II, Cu(II and Zn(II with 3,4,5-trimethoxybenzoic acid anion of the formula: M(C10H11O52·nH2O, where n = 6 for Ni(II, n = 1 for Mn(II, Co(II, Cu(II, and n = 0 for Zn, have been synthesized and characterized by elemental analysis, IR spectroscopy, X–ray diffraction measurements, thermogravimetry and magnetic studies. They are crystalline compounds characterized by various symmetry. They decompose in various ways when heated in air to 1273 K. At first, they dehydrate in one step and form anhydrous salts. The final products of decomposition are oxides of the respective metals (Mn2O3, Co3O4, NiO, CuO, ZnO. The solubilities of the analysed complexes in water at 293 K are in the orders of 10-2 – 10-4 mol dm-3. The magnetic susceptibilities of the Mn(II, Co(II, Ni(II and Cu(II complexes were measured over the range of 76–303 K and the magnetic moments were calculated. The results show that the 3,4,5-trimethoxybenzoates of Mn(II, Co(II and Ni(II are high-spin complexes but that of Cu(II forms a dimer [Cu2(C10H11O54(H2O2]. The carboxylate groups bind as monodentate or bidentate chelating or bridging ligands.

  16. TAF(II)250: a transcription toolbox.

    Science.gov (United States)

    Wassarman, D A; Sauer, F

    2001-08-01

    Activation of RNA-polymerase-II-dependent transcription involves conversion of signals provided by gene-specific activator proteins into the synthesis of messenger RNA. This conversion requires dynamic structural changes in chromatin and assembly of general transcription factors (GTFs) and RNA polymerase II at core promoter sequence elements surrounding the transcription start site of genes. One hallmark of transcriptional activation is the interaction of DNA-bound activators with coactivators such as the TATA-box binding protein (TBP)-associated factors (TAF(II)s) within the GTF TFIID. TAF(II)250 possesses a variety of activities that are likely to contribute to the initial steps of RNA polymerase II transcription. TAF(II)250 is a scaffold for assembly of other TAF(II)s and TBP into TFIID, TAF(II)250 binds activators to recruit TFIID to particular promoters, TAF(II)250 regulates binding of TBP to DNA, TAF(II)250 binds core promoter initiator elements, TAF(II)250 binds acetylated lysine residues in core histones, and TAF(II)250 possesses protein kinase, ubiquitin-activating/conjugating and acetylase activities that modify histones and GTFs. We speculate that these activities achieve two goals--(1) they aid in positioning and stabilizing TFIID at particular promoters, and (2) they alter chromatin structure at the promoter to allow assembly of GTFs--and we propose a model for how TAF(II)250 converts activation signals into active transcription.

  17. Roget's II the new thesaurus

    CERN Document Server

    2003-01-01

    Roget’s II: The New Thesaurus, Third Edition, allows the user to find the right synonym with a minimum of effort. Unlike many thesauruses, this easy-to-use reference lists main entry words alphabetically, as in a dictionary, for quick lookup. Each entry is divided into senses, with brief definitions and a full list of synonyms for each sense, to ensure that the selected usage is the most appropriate one. All special usages, such as slang terms, are labeled and grouped together at the end of each synonym list. Following each list is a cross-reference to a related entry in the thesaurus’s unique Category Index. This index leads the reader from the starting word to dozens of others that have related or opposite meanings. All these features make Roget’s II the best resource for finding the right word every time.

  18. Belle II silicon vertex detector

    Energy Technology Data Exchange (ETDEWEB)

    Adamczyk, K. [H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342 (Poland); Aihara, H. [Department of Physics, University of Tokyo, Tokyo 113-0033 (Japan); Angelini, C. [Dipartimento di Fisica, Università di Pisa, I-56127 Pisa (Italy); INFN Sezione di Pisa, I-56127 Pisa (Italy); Aziz, T.; Babu, V. [Tata Institute of Fundamental Research, Mumbai 400005 (India); Bacher, S. [H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342 (Poland); Bahinipati, S. [Indian Institute of Technology Bhubaneswar, Satya Nagar (India); Barberio, E.; Baroncelli, Ti.; Baroncelli, To. [School of Physics, University of Melbourne, Melbourne, Victoria 3010 (Australia); Basith, A.K. [Indian Institute of Technology Madras, Chennai 600036 (India); Batignani, G. [Dipartimento di Fisica, Università di Pisa, I-56127 Pisa (Italy); INFN Sezione di Pisa, I-56127 Pisa (Italy); Bauer, A. [Institute of High Energy Physics, Austrian Academy of Sciences, 1050 Vienna (Austria); Behera, P.K. [Indian Institute of Technology Madras, Chennai 600036 (India); Bergauer, T. [Institute of High Energy Physics, Austrian Academy of Sciences, 1050 Vienna (Austria); Bettarini, S. [Dipartimento di Fisica, Università di Pisa, I-56127 Pisa (Italy); INFN Sezione di Pisa, I-56127 Pisa (Italy); Bhuyan, B. [Indian Institute of Technology Guwahati, Assam 781039 (India); Bilka, T. [Faculty of Mathematics and Physics, Charles University, 121 16 Prague (Czech Republic); Bosi, F. [INFN Sezione di Pisa, I-56127 Pisa (Italy); Bosisio, L. [Dipartimento di Fisica, Università di Trieste, I-34127 Trieste (Italy); INFN Sezione di Trieste, I-34127 Trieste (Italy); and others

    2016-09-21

    The Belle II experiment at the SuperKEKB collider in Japan is designed to indirectly probe new physics using approximately 50 times the data recorded by its predecessor. An accurate determination of the decay-point position of subatomic particles such as beauty and charm hadrons as well as a precise measurement of low-momentum charged particles will play a key role in this pursuit. These will be accomplished by an inner tracking device comprising two layers of pixelated silicon detector and four layers of silicon vertex detector based on double-sided microstrip sensors. We describe herein the design, prototyping and construction efforts of the Belle-II silicon vertex detector.

  19. MPS II drift chamber system

    International Nuclear Information System (INIS)

    Platner, E.D.

    1982-01-01

    The MPS II detectors are narrow drift space chambers designed for high position resolution in a magnetic field and in a very high particle flux environment. Central to this implementation was the development of 3 multi-channel custom IC's and one multi-channel hybrid. The system is deadtimeless and requires no corrections on an anode-to-anode basis. Operational experience and relevance to ISABELLE detectors is discussed

  20. FRM-II conversion revisited

    International Nuclear Information System (INIS)

    Glaser, A.; Pistner, C.; Liebert, W.

    2000-01-01

    The possibilities for a conversion of the currently constructed research reactor FRM-II has been extensively discussed at various RERTR meetings over the past years. In order to support the ongoing decision-making process in Germany, we prepared computer simulations providing extra information on the scientific usability of the converted reactor based on designs proposed by ANL and TUM. The most important results of these calculations are presented and discussed. Special attention is thereby given to the specific German context. (author)

  1. TRANSWRAP II: problem definition manual

    International Nuclear Information System (INIS)

    Knittle, D.E.

    1981-02-01

    The TRANSWRAP II computer code, written in Fortran IV and described in this Problem Definition Manual, was developed to analytically predict the magnitude of pressure pulses of large scale sodium-wate reactions in LMFBR secondary systems. It is currently being used for the Clinch River Breeder Reactor Program. The code provides the options, flexibility and features necessary to consider any system configuration. The code methodology has been validated with the aid of extensive sodium-water reaction test programs

  2. Spectroscopic and thermal degradation behavior of Mg(II, Ca(II, Ba(II and Sr(II complexes with paracetamol drug

    Directory of Open Access Journals (Sweden)

    Moamen S. Refat

    2017-05-01

    Full Text Available Complexes of Mg(II, Ca(II, Ba(II and Sr(II with paracetamol drug were synthesized and characterized by elemental analysis, conductivity, UV–Vis, IR, and 1H NMR spectroscopy and thermal analysis, as well as screened for antimicrobial activity. The IR spectral data suggested that the ligand behaves as paracetamol behaves as a neutral bidentate ligand coordinated to the metal ions via the lone pair of electrons of nitrogen and carbonyl-O atoms of the amide group. From the microanalytical data, the stoichiometry of the complexes reacts with Mg(II, Ca(II, Ba(II and Sr(II by molar ratios (2:1 (paracetamol:metal ion. The thermal behavior (TG/DTG of the complexes was studied. The ligand and their metal complexes were screened against both of antibacterial and fungicidal activities.

  3. World War II Weather Record Transmittances

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — World War II Weather Record Transmittances are a record of the weather and meteorological data observed during World War II and transferred to the archive. It...

  4. Synthesis and characterization of heterobimetallic complexes of the type [Cu(pn2][MCl4] where M = Co(II, Ni(II, Cu(II, Zn(II, Cd(II, and Hg(II

    Directory of Open Access Journals (Sweden)

    Seema Yadav

    2016-11-01

    Full Text Available A series of new bimetallic transition metal complexes of the type [Cu(pn2] [MCl4] have been synthesized (where M = Co(II, Ni(II, Cu(II, Zn(II, Cd(II and Hg(II, pn = 1,3-diaminopropane and characterized by elemental analysis, molar conductance, TGA, IR and electronic spectra. All the compounds are 1:1 electrolyte in DMF. The Cu(II ion is square-planar while metal ions in the anionic moiety acquire their usual tetrahedral arrangement. On the basis of these studies it is concluded that anionic moiety is electrically stabilized by its cationic counterpart.

  5. Preparation of Schiff s base complexes of Mn(II), Co(II), Ni(II), Cu(II), Zn(II), and Cd(II) and their spectroscopic, magnetic, thermal, and antifungal studies

    International Nuclear Information System (INIS)

    Parekh, H.M.; Patel, M.N.

    2006-01-01

    The potassium salt of salicylidene-DL-alanine (KHL), bis(benzylidene)ethylenediamine (A 1 ), thiophene-o-carboxaldene-p-toluidine (A 2 ), and its metal complexes of the formula [(M II (L)(A)(H 2 O)] (M=Mn(II), Co(II), Ni(II), Cu(II), Zn(II), and Cd(II); A = A 1 or A 2 ) are prepared. They are characterized by elemental analysis, magnetic susceptibility measurements, thermogravimetric analysis, and infrared and electronic spectral studies. The electronic spectral and magnetic moment data suggest an octahedral geometry for the complexes. All of these complexes, metal nitrates, fungicides (bavistin and emcarb), and ligands are screened for their antifungal activity against Aspergillus niger, Fusarium oxysporum, and Aspergillus flavus using a plate poison technique. The complexes show higher activity than those of the free ligands, metal nitrate, and the control (DMSO) and moderate activity against bavistin and emcarb [ru

  6. Status of Gerda Phase II

    Energy Technology Data Exchange (ETDEWEB)

    Wagner, Victoria [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Collaboration: GERDA-Collaboration

    2016-07-01

    The GERDA experiment is designed to search for neutrinoless double beta (0νββ) decay of {sup 76}Ge. In Phase I of the experiment a background index (BI) of 10{sup -2} cts/(keV.kg.yr) was reached. No signal has been found and a lower limit on the half-life of 2.1.10{sup 25} yr (at 90% C.L.) is extracted. The aim of Phase II is to double the Ge mass and further reduce the BI by an order of magnitude to explore half-lives of about 10{sup 26} yr. Thirty new Broad Energy Germanium (BEGe) detectors have been produced. These detectors are distinct for their improved energy resolution and enhanced pulse shape discrimination of signal from background events. Further background reduction will be reached by an active veto to read out argon scintillation light. The Phase II commissioning showed that two of the major background components, external γ-rays from {sup 214}Bi and {sup 208}Tl decays, can be suppressed up to two orders of magnitude. This talk presents the current status of the GERDA Phase II upgrade.

  7. Testing the Gossamer Albatross II

    Science.gov (United States)

    1980-01-01

    The Gossamer Albatross II is seen here during a test flight at NASA's Dryden Flight Research Center, Edwards, California. The original Gossamer Albatross is best known for completing the first completely human powered flight across the English Channel on June 12, 1979. The Albatross II was the backup craft for the Channel flight. It was fitted with a small battery-powered electric motor and flight instruments for the NASA research program in low-speed flight. NASA completed its flight testing of the Gossamer Albatross II and began analysis of the results in April, 1980. During the six week program, 17 actual data gathering flights and 10 other flights were flown here as part of the joint NASA Langley/Dryden flight research program. The lightweight craft, carrying a miniaturized instrumentation system, was flown in three configurations; using human power, with a small electric motor, and towed with the propeller removed. Results from the program contributed to data on the unusual aerodynamic, performance, stability, and control characteristics of large, lightweight aircraft that fly at slow speeds for application to future high altitude aircraft. The Albatross' design and research data contributed to numerous later high altitude projects, including the Pathfinder.

  8. Light echoes - Type II supernovae

    International Nuclear Information System (INIS)

    Schaefer, B.E.

    1987-01-01

    Type II supernovae (SNs) light curves show a remarkable range of shapes. Data have been collected for the 12 Type II SNs that have light curve information for more than four months past maximum. Contrary to previous reports, it is found that (1) the decay rate after 100 days past maximum varies by almost an order of magnitude and (2) the light curve shapes are not bimodally distributed, but actually form a continuum. In addition, it is found that the extinctions to the SNs are related to the light curve shapes. This implies that the absorbing dust is local to the SNs. The dust is likely to be part of a circumstellar shell emitted by the SN progenitor that Dwek (1983) has used to explain infrared echoes. The optical depth of the shell can get quite large. In such cases, it is found that the photons scattered and delayed by reflection off dust grains will dominate the light curve several months after peak brightness. This light echo offers a straightforward explanation of the diversity of Type II SN light curves. 22 references

  9. Synthesis, spectral characterization thermal stability, antimicrobial studies and biodegradation of starch–thiourea based biodegradable polymeric ligand and its coordination complexes with [Mn(II), Co(II), Ni(II), Cu(II), and Zn(II)] metals

    OpenAIRE

    Nahid Nishat; Ashraf Malik

    2016-01-01

    A biodegradable polymer was synthesized by the modification reaction of polymeric starch with thiourea which is further modified by transition metals, Mn(II), Co(II), Ni(II), Cu(II) and Zn(II). All the polymeric compounds were characterized by (FT-IR) spectroscopy, 1H NMR spectroscopy, 13C NMR spectroscopy, UV–visible spectra, magnetic moment measurements, thermogravimetric analysis (TGA) and antibacterial activities. Polymer complexes of Mn(II), Co(II) and Ni(II) show octahedral geometry, wh...

  10. Levels of Cd (II, Mn (II, Pb (II, Cu (II, and Zn (II in Common Buzzard (Buteo buteo from Sicily (Italy by Derivative Stripping Potentiometry

    Directory of Open Access Journals (Sweden)

    P. Licata

    2010-01-01

    Full Text Available The purpose of this study was to determine the concentrations of heavy metals (Cd, Pb, Cu, Mn, and Zn in different organs (liver, kidney, muscle, lung, skin, and feathers of buzzards (Buteo buteo, utilized as a “biological indicator” for environmental contamination, from different areas of Sicily and to investigate the relationships between birds sex, age, and weight and metal levels in these samples. All samples of common buzzards were collected at the “Recovery Center of Wild Fauna” of Palermo, through the Zooprophilactic Institute. Potentiometric stripping analysis (PSA was used to determine the content of Cd(II, Cu(II, Mn(II, Pb(II, and Zn(II in bird tissues. For toxic metals, the highest levels of Pb were in liver and those of Cd in lung; Zn levels were higher than Cu and Mn in all tissues analyzed. The concentrations in liver, lung, kidney, and muscle could be considered as an indicative of chronic exposure to metals while the presence of metals in skin could be consequential to storing and elimination processes. The found concentrations of metals in the studied matrices required a highly sensitive method for their determination and a simple sample preparation procedure, and the proposed method was well suited for this purpose.

  11. Synthesis, spectral, thermal and antimicrobial studies on cobalt(II), nickel(II), copper(II), zinc(II) and palladium(II) complexes containing thiosemicarbazone ligand

    Science.gov (United States)

    El-Sawaf, Ayman K.; El-Essawy, Farag; Nassar, Amal A.; El-Samanody, El-Sayed A.

    2018-04-01

    The coordination characteristic of new N4-morpholinyl isatin-3-thiosemicarbazone (HL) towards Co(II), Ni(II), Cu(II), Zn(II) and Pd(II) has been studies. The structures of the complexes were described by elemental analyses, molar conductivity, magnetic, thermal and spectral (IR, UV-Vis, 1H and 13C NMR and ESR) studies. On the basis of analytical and spectral studies the ligand behaves as monobasic tridentate ONS donor forming two five membered rings towards cobalt, copper and palladium and afforded complexes of the kind [M(L)X], (Mdbnd Co, Cu or Pd; Xdbnd Cl, Br or OAc). Whereas the ligand bound to NiCl2 as neutral tridentate ONS donor and with ZnCl2 as neutral bidentate NS donor. The newly synthesized thiosemicarbazone ligand and some of its complexes were examined for antimicrobial activity against 2 gram negative bacterial strains (Escherichia coli Pseudomonas and aeruginosa), 2 gram positive bacterial strains (Streptococcus pneumoniae and Staphylococcus aureus)} and two Pathogenic fungi (Aspergillus fumigatus and Candida albicans). All metal complexes possess higher antimicrobial activity comparing with the free thiosemicarbazone ligand. The high potent activities of the complexes may arise from the coordination and chelation, which tends to make metal complexes act as more controlling and potent antimicrobial agents, thus hindering the growing of the microorganisms. The antimicrobial results also show that copper bromide complex is better antimicrobial agent as compared to the Schiff base and its metal complexes.

  12. Efficiency of Chitosan for the Removal of Pb (II, Fe (II and Cu (II Ions from Aqueous Solutions

    Directory of Open Access Journals (Sweden)

    Soheil Sobhanardakani

    2014-09-01

    Full Text Available Background: Heavy metals have been recognized as harmful environmental pollutant known to produce highly toxic effects on different organs and systems of both humans and animals. The aim of this paper is to evaluate the adsorption potential of chitosan for the removal of Pb(II, Fe(II and Cu(II ions from aqueous solutions. Methods: This study was conducted in laboratory scale. In this paper chitosan has been used as an adsorbent for the removal of Pb(II, Fe(II and Cu(II from aqueous solution. In batch tests, the effects of parameters like pH solution (1.0-8.0, initial metal concentrations (100-1000 mgL-1, contact time (5.0-150 min and adsorbent dose (1.0-7.0 g on the adsorption process were studied. Results: The results showed that the adsorption of Pb(II, Fe(II and Cu(II ions on chitosan strongly depends on pH. The experimental isothermal data were analyzed using the Langmuir and Freundlich equations and it was found that the removal process followed the Langmuir isotherm and maximum adsorption capacity for the adsorption of Pb(II, Fe(II and Cu(II ions by the chitosan were 55.5mg g−1, 71.4 mg g−1 and 59 mg g−1, respectively, under equilibrium conditions at 25±1 ºC. The adsorption process was found to be well described by the pseudo-second-order rate model. Conclusion: The obtained results showed that chitosan is a readily, available, economic adsorbent and was found suitable for removing Pb(II, Fe(II and Cu(II ions from aqueous solution.

  13. Sample Exchange Evaluation (SEE) Report - Phase II

    International Nuclear Information System (INIS)

    Winters, W.I.

    1994-01-01

    This report describes the results from Phase II of the Sample Exchange Evaluation (SEE) Program, a joint effort to compare analytical laboratory performance on samples from the Hanford Site's high-level waste tanks. In Phase II, the program has been expanded to include inorganic constituents in addition to radionuclides. Results from Phase II that exceeded 20% relative percent difference criteria are identified

  14. Competition from Cu(II), Zn(II) and Cd(II) in Pb(II) binding to Suwannee River Fulvic Acid

    NARCIS (Netherlands)

    Chakraborty, P.; Chakrabarti, C.L.

    2008-01-01

    This is a study of trace metal competition in the complexation of Pb(II) by well-characterized humic substances, namely Suwannee River Fulvic Acid (SRFA) in model solutions. It was found that Cu(II) seems to compete with Pb(II) for strong binding sites of SRFA when present at the same concentration

  15. Macrocyclic receptor showing extremely high Sr(II)/Ca(II) and Pb(II)/Ca(II) selectivities with potential application in chelation treatment of metal intoxication.

    Science.gov (United States)

    Ferreirós-Martínez, Raquel; Esteban-Gómez, David; Tóth, Éva; de Blas, Andrés; Platas-Iglesias, Carlos; Rodríguez-Blas, Teresa

    2011-04-18

    Herein we report a detailed investigation of the complexation properties of the macrocyclic decadentate receptor N,N'-Bis[(6-carboxy-2-pyridil)methyl]-4,13-diaza-18-crown-6 (H(2)bp18c6) toward different divalent metal ions [Zn(II), Cd(II), Pb(II), Sr(II), and Ca(II)] in aqueous solution. We have found that this ligand is especially suited for the complexation of large metal ions such as Sr(II) and Pb(II), which results in very high Pb(II)/Ca(II) and Pb(II)/Zn(II) selectivities (in fact, higher than those found for ligands widely used for the treatment of lead poisoning such as ethylenediaminetetraacetic acid (edta)), as well as in the highest Sr(II)/Ca(II) selectivity reported so far. These results have been rationalized on the basis of the structure of the complexes. X-ray crystal diffraction, (1)H and (13)C NMR spectroscopy, as well as theoretical calculations at the density functional theory (B3LYP) level have been performed. Our results indicate that for large metal ions such as Pb(II) and Sr(II) the most stable conformation is Δ(δλδ)(δλδ), while for Ca(II) our calculations predict the Δ(λδλ)(λδλ) form being the most stable one. The selectivity that bp18c6(2-) shows for Sr(II) over Ca(II) can be attributed to a better fit between the large Sr(II) ions and the relatively large crown fragment of the ligand. The X-ray crystal structure of the Pb(II) complex shows that the Δ(δλδ)(δλδ) conformation observed in solution is also maintained in the solid state. The Pb(II) ion is endocyclically coordinated, being directly bound to the 10 donor atoms of the ligand. The bond distances to the donor atoms of the pendant arms (2.55-2.60 Å) are substantially shorter than those between the metal ion and the donor atoms of the crown moiety (2.92-3.04 Å). This is a typical situation observed for the so-called hemidirected compounds, in which the Pb(II) lone pair is stereochemically active. The X-ray structures of the Zn(II) and Cd(II) complexes show that

  16. Eight joint BER II and BESSY II users meeting. Abstracts

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2016-07-01

    The following topics were dealt with: Accelerator operation and projecs, photon science and instrumentation at BESSY II, status of energy materials in-situ Lab at BESSY II, high resolution spectrometer PEAXIS at BESSY II, sample environment at BESSY II, molecular control mechanisms in the Brr2 RNA helicase for efficient and regulated splicing, the Li conversion reaction of 4CoFe{sub 2}O{sub 4} nanoparticles, buried interfaces in lithium ion batteries probed with HAXPES, ARPES studies of the STO(001) 2DEG, all-in/all-out magnetic order in rare earth iridates, oxygen reduction reaction on graphene in Li-air batteries, electronic order in high-T{sub c} superconductors, in-siu observation of novel switching phenomena in highly porous metal-organic frameworks, photoinduced demagnetization and insulator-to-metal transition in ferromagnetic insulating BaFeO{sub 3} thin films, ARPES measurement of the ferroelectric bulk Rashba system GeTe, bisphenol A on Cu(111) and Ag(111), reverse water-gas shift or Sabathier methanation on N(110), structural studies of molecular machines, multi-MHz time-of-flight electronic band-structure imaging of graphene on Ir(111), diffusion pathways in ion conductors, ground-state potential energy surfaces around selected atoms from resonant inelastic X-ray scattering, solar energy in an emerging country, in-situ neutron analysis of electrode materials for electrochemical energy storage, structure and transport properties in thermoelectric skutterudites, investigation of the interphase formation on solid lithium-ion conductors by neutron reflectometry, load partitin and damage characterization of cast AlSi{sub 12}CuMgNi alloy with ceramic reinforcement, methane adsorption in highly porous metal-organics, structure and magnetic interactions in dimer system Ba{sub (3-x)}Sr{sub x}Cr{sub 2}O{sub 8}, distribution of S in C-S nanocomposites, current status of HFM-EXED FACITIY; SPIN NEAMTICITY IN s=1/2 frustrated zigzag chaIN β-TeVO{sub 4}, electronic

  17. Eight joint BER II and BESSY II users meeting. Abstracts

    International Nuclear Information System (INIS)

    2016-01-01

    The following topics were dealt with: Accelerator operation and projecs, photon science and instrumentation at BESSY II, status of energy materials in-situ Lab at BESSY II, high resolution spectrometer PEAXIS at BESSY II, sample environment at BESSY II, molecular control mechanisms in the Brr2 RNA helicase for efficient and regulated splicing, the Li conversion reaction of 4CoFe_2O_4 nanoparticles, buried interfaces in lithium ion batteries probed with HAXPES, ARPES studies of the STO(001) 2DEG, all-in/all-out magnetic order in rare earth iridates, oxygen reduction reaction on graphene in Li-air batteries, electronic order in high-T_c superconductors, in-siu observation of novel switching phenomena in highly porous metal-organic frameworks, photoinduced demagnetization and insulator-to-metal transition in ferromagnetic insulating BaFeO_3 thin films, ARPES measurement of the ferroelectric bulk Rashba system GeTe, bisphenol A on Cu(111) and Ag(111), reverse water-gas shift or Sabathier methanation on N(110), structural studies of molecular machines, multi-MHz time-of-flight electronic band-structure imaging of graphene on Ir(111), diffusion pathways in ion conductors, ground-state potential energy surfaces around selected atoms from resonant inelastic X-ray scattering, solar energy in an emerging country, in-situ neutron analysis of electrode materials for electrochemical energy storage, structure and transport properties in thermoelectric skutterudites, investigation of the interphase formation on solid lithium-ion conductors by neutron reflectometry, load partitin and damage characterization of cast AlSi_1_2CuMgNi alloy with ceramic reinforcement, methane adsorption in highly porous metal-organics, structure and magnetic interactions in dimer system Ba_(_3_-_x_)Sr_xCr_2O_8, distribution of S in C-S nanocomposites, current status of HFM-EXED FACITIY; SPIN NEAMTICITY IN s=1/2 frustrated zigzag chaIN β-TeVO_4, electronic properties of U(Ru_0_._9_2Rh_0_._0_8)_2Si_2 in

  18. Iodine capture by Hofmann-type clathrate Ni(II)(pz)[Ni(II)(CN)_4

    International Nuclear Information System (INIS)

    Massasso, Giovanni; Long, Jerome; Haines, Julien; Devautour-Vinot, Sabine; Maurin, Guillaume; Larionova, Joulia; Guerin, Christian; Guari, Yannick; Grandjean, Agnes; Onida, Barbara; Donnadieu, Bruno

    2014-01-01

    The thermally stable Hofmann-type clathrate framework Ni(II)(pz)[Ni(II)(CN)_4] (pz = pyrazine) was investigated for the efficient and reversible sorption of iodine (I_2) in the gaseous phase and in solution with a maximum adsorption capacity of 1 mol of I_2 per 1 mol of Ni(II)pz)[Ni(II)(CN)_4] in solution. (authors)

  19. Synthesis and Characterization of Multimetallic Fe(II) and Mn(II ...

    African Journals Online (AJOL)

    Iron(II) and Manganese(II) complexes of the resulting ligand were obtained from its reactions with Fe(II) and Mn(II) salts in absolute methanol for the metal to ligand ratio 2:3. These complexes were characterized by Solubility, Conductivity, IR and UV-VIS spectrometry, elemental analysis and mass spectrometry. Keywords: ...

  20. DNA damage by the cobalt (II) and zinc (II) complexes of ...

    African Journals Online (AJOL)

    STORAGESEVER

    2008-09-03

    Sep 3, 2008 ... distributed in grade 3. The results indicated that Co(II)-L induced a relatively high level of DNA damage in comparison with the level of damage induced by Zn(II)-L. Key words: Tetraazamacrocycle Zn(II) complex, tetraazamacrocycle Co(II) complex, Tetrahymena thermophila, DNA damage, the comet assay.

  1. Syntheses and spectroscopic properties of mercury(II) and nickel(II ...

    African Journals Online (AJOL)

    Mercury(II) complex, [Hg2(BPTU-2H)Cl2] and nickel(II) complex, [Ni(BPTU-H)2] were prepared by reacting Bis(N-phenylthiourea), BPTU, with mercury(II) chloride and nickel(II) acetate respectively. The complexes were characterized by IR, diffuse reflectance, 1H NMR spectra and elemental analysis. BPTU acts as ...

  2. BES-II fast data reconstruction

    International Nuclear Information System (INIS)

    Rong Gang; Zhang Jiawen; Guo Yiqing; Zhang Shaoqiang; Zhao Dixin

    2002-01-01

    The BES-II fast data reconstruction is reported. Based on PC FARM and/or a 'Distributed Clustered Linux PC System', BES-II fast data reconstruction system is set up. With this system the BES-II data can be fully reconstructed in about 20 minutes after data collection. It takes only 12 minutes to fully reconstruct 30000 events, collected with BES-II detector at BEPC Collider, with a P III-800 PC. The detector performance can be examined based on fully reconstructed data in about 20 minutes after data taking in the BES-II experiment

  3. Síndrome de Brown-Séquard por hérnia discal cervical a duplo nível: caso clínico e revisão da literatura Síndrome de Brown-Séquard por hernia discal cervical en nivel doble: caso clínico y revisión de la literatura Brown-Séquard syndrome by double level cervical disc herniation: case report and review of the literature

    Directory of Open Access Journals (Sweden)

    Jorge Miguel Silva Ribeiro Olliveira Alves

    2012-09-01

    Full Text Available Descrição do caso clínico de um paciente com síndrome de Brown-Séquard por hérnia de disco cervical em duplo nível, 40 anos, do sexo masculino, sem história de patologia prévia da coluna cervical; teve início insidioso de paresia nos membros direitos, associada à diminuição da sensibilidade dolorosa e térmica do hemicorpo esquerdo, após mergulho que ocasionou trauma indireto da coluna cervical. A RM da coluna cervical mostrou hérnias discais paramedianas direitas nos níveis C4-C5 e C5-C6 com compressão da metade direita do cordão medular e hiperintensidade em T2. Foi realizada descompressão por via anterior e artrodese dos níveis afetados. O paciente recuperou-se parcialmente dos déficits neurológicos, após um longo programa de reabilitação funcional. O tratamento cirúrgico e um programa de reabilitação precoce são da maior importância para a recuperação neurológica de paciente com síndrome de Brown-Séquard por hérnia de disco cervical.Descripción del caso clínico de un paciente con síndrome de Brown-Séquard por hernia de disco cervical en nivel doble, 40 años, del sexo masculino, sin historial de patología previa de la columna cervical; tuvo inicio insidioso de paresia en los miembros derechos, vinculada con la disminución de la sensibilidad dolorosa y térmica del hemicuerpo izquierdo, después de zambullida que ocasionó traumatismo indirecto de la columna vertebral. La RM de la columna cervical mostró hernias discales paramedianas derechas, en los niveles C4-C5 y C5-C6, con compresión de la mitad derecha del cordón medular e hiperintensidad en T2. Se realizó descompresión por vía anterior y artrodesis de los niveles afectados. El paciente se recuperó, parcialmente, de los déficits neurológicos, después de un programa prolongado de rehabilitación funcional. El tratamiento quirúrgico y un programa de rehabilitación precoz son de máxima importancia para la recuperación neurológica del

  4. Simultaneous Determination of Cobalt (II and Nickel (II By First Order Derivative Spectrophotometry in Micellar Media

    Directory of Open Access Journals (Sweden)

    Rajni Rohilla

    2012-01-01

    Full Text Available A first-derivative spectrophotometry method for the simultaneous determination of Co (II and Ni (II with Alizarin Red S in presence of Triton X-100 is described. Measurements were made at the zero-crossing wavelengths at 549.0 nm for Co (II and 546.0 nm for Ni (II. The linearity is obtained in the range of 0.291- 4.676 μg/ml of Ni (II and 0.293- 4.124 μg/ml of Co (II in the presence of each other by using first derivative spectrophotometric method. The possible interfering effects of various ions were studied. The validity of the method was examined by using synthetic mixtures of Co (II and Ni (II. The developed derivative procedure, using the zero crossing technique, has been successfully applied for the simultaneous analysis of Co (II and Ni (II in spiked water samples.

  5. DNA damage by the cobalt (II) and zinc (II) complexes of ...

    African Journals Online (AJOL)

    Using the single cell gel electrophoresis method, the tetraazamacrocycle Zn(II) complex (Zn(II)-L) and the tetraazamacrocycle Co(II) complex (Co(II)-L) were investigated focusing on their DNA damage to Tetrahymena thermophila. When the cells were treated with the 0.05, 0.25 and 0.50 mg/ml Zn(II)-L, the tail length ...

  6. (Diethylenetriaminebis(theophyllinatozinc(II dihydrate

    Directory of Open Access Journals (Sweden)

    Attila-Zsolt Kun

    2009-05-01

    Full Text Available In the title compound, [Zn(C7H7N4O22(C4H13N3]·2H2O, the ZnII ion is pentacoordinated by three N atoms of the diethylenetriamine ligand and one N atom of each of the two theophyllinate anions in a distorted trigonal-bipyramidal geometry. The Zn—N distances range from 2.076 (3 to 2.221 (3 Å. The crystal packing is stabilized by O—H...O, O—H...N and N—H...O hydrogen bonds involving the theophylline and diethylenetriamine ligands and uncoordinated water molecules.

  7. Actions against Asse II dismissed

    International Nuclear Information System (INIS)

    Anon.

    1980-01-01

    In the legal dispute over the storage of radioactive waste in the former Asse II salt mine near Wolfenbuettel, the Higher Administrative Court for Lower Saxony and Schleswig-Holstein in a decision dated January 17, 1980, dismissed as inadmissible the appeals brought by plaintiffs from the Federal Republic of Germany, Denmark and Austria against the decision by the Braunschweig Administrative Court, in which that action had been dismissed. Also more recent applications were declared to be inadmissible on the grounds that the Lower Saxony State Ministry of Social Affairs was not the proper defendant. No appeal was permitted. The written decision by the Court has not yet been published. (HSCH) [de

  8. Commissioning of NSLS-II

    Energy Technology Data Exchange (ETDEWEB)

    Willeke, F.

    2015-05-03

    NSLS-II, the new 3rd generation light source at BNL was designed for a brightness of 1022 photons s-1mm-2mrad-2 (0.1%BW)-1. It was constructed between 2009 and 2014. The storage ring was commissioned in April 2014 which was followed by insertion device and beamline commissioning in the fall of 2014. All ambitious design parameters of the facility have already been achieved except for commissioning the full beam intensity of 500mA which requires more RF installation. This paper reports on the results of commissioning.

  9. Reference design for LAMPF II

    International Nuclear Information System (INIS)

    Thiessen, H.A.

    1983-01-01

    A reference design for the 32-GeV LAMPF II proton accelerator is proposed. This design consists of a 30-Hz rapid-cycling synchrotron with a dc stretcher. A superiodicity 5 design with dispersion-free straight sections is suggested for both machines. Beam-dynamics calculations are partially complete and rf requirements are given. Apertures are calculated for 2 x 10 13 protons per pulse (100 μA average current). No significant problems are observed at any time in the cycle in a longitudinal beam-dynamics simulation including space charge

  10. Pep for PEP-II

    International Nuclear Information System (INIS)

    Anon.

    1995-01-01

    The major B-factory project at the Stanford Linear Accelerator Center have(SLAC) is well underway and moving along smartly, en route to commencement of operations in September 1998. Called PEP-II, the new facility is a joint venture of three California laboratories: Lawrence Berkeley Laboratory (LBL), Lawrence Livermore Laboratory (LLNL) and SLAC. Housed at SLAC in the tunnels and buildings built for the original PEP electron-positron collider in the late 1970s, it involves no conventional civil engineering. In fact, PEP-II is a recycling project in more ways than one: for example, most of the original PEP magnets have been renovated for reuse in the PEP-II high-energy ring. While some of them require substantial rework (to change their length, for instance), many of them merely require repainting and remeasuring. The work of building the hardware is divided up among the three laboratories. LBL is primarily responsible for the low-energy ring; LLNL is building most of the interaction region, the complicated part where the high and low energy rings come together; and SLAC is responsible for the rest. Proposed by President Clinton as a ''presidential initiative'' (December 1993, page 2), the project was given a four-year funding profile. The total cost of $177 million, excluding the BaBar detector (September, page 16), was planned by the US government to be entirely provided during the present administration, the last increment coming in the final quarter of 1997. Happily, the first two increments have been forthcoming as planned and the third is faring well in US Congress. The PEP-II design is based on two intersecting storage rings, one carrying 9 GeV electrons and the other 3.1 GeV positrons, operating with high beam currents (a few amperes) to produce a luminosity of 3 x 10 33 per sq cm per s. The asymmetry in the energies of the colliding particles means that the centre-ofmass of the electron-positron annihilation system moves rapidly in the

  11. PEP-II status report

    International Nuclear Information System (INIS)

    Dorfan, J.M.

    1998-06-01

    The main design features of the PEP-II asymmetric two-ring electron-positron B Factory collider, built at the Stanford Linear Accelerator Center, are described. This facility will complete construction in June 1998. The high energy ring, completed in May 1997, has had 3 months of commissioning and successfully stored 0.75 A of electrons. The success of the high energy ring testing validates not only its ring components, but also the injection system, the RF system and the control system all of which are common to the two rings

  12. Belle II Technical Design Report

    CERN Document Server

    Abe, T; Adamczyk, K; Ahn, S; Aihara, H; Akai, K; Aloi, M; Andricek, L; Aoki, K; Arai, Y; Arefiev, A; Arinstein, K; Arita, Y; Asner, D M; Aulchenko, V; Aushev, T; Aziz, T; Bakich, A M; Balagura, V; Ban, Y; Barberio, E; Barvich, T; Belous, K; Bergauer, T; Bhardwaj, V; Bhuyan, B; Blyth, S; Bondar, A; Bonvicini, G; Bozek, A; Bracko, M; Brodzicka, J; Brovchenko, O; Browder, T E; Cao, G; Chang, M -C; Chang, P; Chao, Y; Chekelian, V; Chen, A; Chen, K -F; Chen, P; Cheon, B G; Chiang, C -C; Chistov, R; Cho, K; Choi, S -K; Chung, K; Comerma, A; Cooney, M; Cowley, D E; Critchlow, T; Dalseno, J; Danilov, M; Dieguez, A; Dierlamm, A; Dillon, M; Dingfelder, J; Dolenec, R; Dolezal, Z; Drasal, Z; Drutskoy, A; Dungel, W; Dutta, D; Eidelman, S; Enomoto, A; Epifanov, D; Esen, S; Fast, J E; Feindt, M; Garcia, M Fernandez; Fifield, T; Fischer, P; Flanagan, J; Fourletov, S; Fourletova, J; Freixas, L; Frey, A; Friedl, M; Fruehwirth, R; Fujii, H; Fujikawa, M; Fukuma, Y; Funakoshi, Y; Furukawa, K; Fuster, J; Gabyshev, N; Cueto, A Gaspar de Valenzuela; Garmash, A; Garrido, L; Geisler, Ch; Gfall, I; Goh, Y M; Golob, B; Gorton, I; Grzymkowski, R; Guo, H; Ha, H; Haba, J; Hara, K; Hara, T; Haruyama, T; Hayasaka, K; Hayashi, K; Hayashii, H; Heck, M; Heindl, S; Heller, C; Hemperek, T; Higuchi, T; Horii, Y; Hou, W -S; Hsiung, Y B; Huang, C -H; Hwang, S; Hyun, H J; Igarashi, Y; Iglesias, C; Iida, Y; Iijima, T; Imamura, M; Inami, K; Irmler, C; Ishizuka, M; Itagaki, K; Itoh, R; Iwabuchi, M; Iwai, G; Iwai, M; Iwasaki, M; Iwasaki, M; Iwasaki, Y; Iwashita, T; Iwata, S; Jang, H; Ji, X; Jinno, T; Jones, M; Julius, T; Kageyama, T; Kah, D H; Kakuno, H; Kamitani, T; Kanazawa, K; Kapusta, P; Kataoka, S U; Katayama, N; Kawai, M; Kawai, Y; Kawasaki, T; Kennedy, J; Kichimi, H; Kikuchi, M; Kiesling, C; Kim, B K; Kim, G N; Kim, H J; Kim, H O; Kim, J -B; Kim, J H; Kim, M J; Kim, S K; Kim, K T; Kim, T Y; Kinoshita, K; Kishi, K; Kisielewski, B; van Dam, K Kleese; Knopf, J; Ko, B R; Koch, M; Kodys, P; Koffmane, C; Koga, Y; Kohriki, T; Koike, S; Koiso, H; Kondo, Y; Korpar, S; Kouzes, R T; Kreidl, Ch; Kreps, M; Krizan, P; Krokovny, P; Krueger, H; Kruth, A; Kuhn, W; Kuhr, T; Kumar, R; Kumita, T; Kupper, S; Kuzmin, A; Kvasnicka, P; Kwon, Y -J; Lacasta, C; Lange, J S; Lee, I -S; Lee, M J; Lee, M W; Lee, S -H; Lemarenko, M; Li, J; Li, W D; Li, Y; Libby, J; Limosani, A; Liu, C; Liu, H; Liu, Y; Liu, Z; Liventsev, D; Virto, A Lopez; Makida, Y; Mao, Z P; Marinas, C; Masuzawa, M; Matvienko, D; Mitaroff, W; Miyabayashi, K; Miyata, H; Miyazaki, Y; Miyoshi, T; Mizuk, R; Mohanty, G B; Mohapatra, D; Moll, A; Mori, T; Morita, A; Morita, Y; Moser, H -G; Martin, D Moya; Mueller, T; Muenchow, D; Murakami, J; Myung, S S; Nagamine, T; Nakamura, I; Nakamura, T T; Nakano, E; Nakano, H; Nakao, M; Nakazawa, H; Nam, S -H; Natkaniec, Z; Nedelkovska, E; Negishi, K; Neubauer, S; Ng, C; Ninkovic, J; Nishida, S; Nishimura, K; Novikov, E; Nozaki, T; Ogawa, S; Ohmi, K; Ohnishi, Y; Ohshima, T; Ohuchi, N; Oide, K; Olsen, S L; Ono, M; Ono, Y; Onuki, Y; Ostrowicz, W; Ozaki, H; Pakhlov, P; Pakhlova, G; Palka, H; Park, H; Park, H K; Peak, L S; Peng, T; Peric, I; Pernicka, M; Pestotnik, R; Petric, M; Piilonen, L E; Poluektov, A; Prim, M; Prothmann, K; Regimbal, K; Reisert, B; Richter, R H; Riera-Babures, J; Ritter, A; Ritter, A; Ritter, M; Roehrken, M; Rorie, J; Rosen, M; Rozanska, M; Ruckman, L; Rummel, S; Rusinov, V; Russell, R M; Ryu, S; Sahoo, H; Sakai, K; Sakai, Y; Santelj, L; Sasaki, T; Sato, N; Sato, Y; Scheirich, J; Schieck, J; Schwanda, C; Schwartz, A J; Schwenker, B; Seljak, A; Senyo, K; Seon, O -S; Sevior, M E; Shapkin, M; Shebalin, V; Shen, C P; Shibuya, H; Shiizuka, S; Shiu, J -G; Shwartz, B; Simon, F; Simonis, H J; Singh, J B; Sinha, R; Sitarz, M; Smerkol, P; Sokolov, A; Solovieva, E; Stanic, S; Staric, M; Stypula, J; Suetsugu, Y; Sugihara, S; Sugimura, T; Sumisawa, K; Sumiyoshi, T; Suzuki, K; Suzuki, S Y; Takagaki, H; Takasaki, F; Takeichi, H; Takubo, Y; Tanaka, M; Tanaka, S; Taniguchi, N; Tarkovsky, E; Tatishvili, G; Tawada, M; Taylor, G N; Teramoto, Y; Tikhomirov, I; Trabelsi, K; Tsuboyama, T; Tsunada, K; Tu, Y -C; Uchida, T; Uehara, S; Ueno, K; Uglov, T; Unno, Y; Uno, S; Urquijo, P; Ushiroda, Y; Usov, Y; Vahsen, S; Valentan, M; Vanhoefer, P; Varner, G; Varvell, K E; Vazquez, P; Vila, I; Vilella, E; Vinokurova, A; Visniakov, J; Vos, M; Wang, C H; Wang, J; Wang, M -Z; Wang, P; Wassatch, A; Watanabe, M; Watase, Y; Weiler, T; Wermes, N; Wescott, R E; White, E; Wicht, J; Widhalm, L; Williams, K M; Won, E; Xu, H; Yabsley, B D; Yamamoto, H; Yamaoka, H; Yamaoka, Y; Yamauchi, M; Yin, Y; Yoon, H; Yu, J; Yuan, C Z; Yusa, Y; Zander, D; Zdybal, M; Zhang, Z P; Zhao, J; Zhao, L; Zhao, Z; Zhilich, V; Zhou, P; Zhulanov, V; Zivko, T; Zupanc, A; Zyukova, O

    2010-01-01

    The Belle detector at the KEKB electron-positron collider has collected almost 1 billion Y(4S) events in its decade of operation. Super-KEKB, an upgrade of KEKB is under construction, to increase the luminosity by two orders of magnitude during a three-year shutdown, with an ultimate goal of 8E35 /cm^2 /s luminosity. To exploit the increased luminosity, an upgrade of the Belle detector has been proposed. A new international collaboration Belle-II, is being formed. The Technical Design Report presents physics motivation, basic methods of the accelerator upgrade, as well as key improvements of the detector.

  13. Solid Phase Extraction of Trace Al(III), Fe(II), Co(II), Cu(II), Cd(II) and Pb(II) Ions in Beverages on Functionalized Polymer Microspheres Prior to Flame Atomic Absorption Spectrometric Determinations.

    Science.gov (United States)

    Berber, Hale; Alpdogan, Güzin

    2017-01-01

    In this study, poly(glycidyl methacrylate-methyl methacrylate-divinylbenzene) was synthesized in the form of microspheres, and then functionalized by 2-aminobenzothiazole ligand. The sorption properties of these functionalized microspheres were investigated for separation, preconcentration and determination of Al(III), Fe(II), Co(II), Cu(II), Cd(II) and Pb(II) ions using flame atomic absorption spectrometry. The optimum pH values for quantitative sorption were 2 - 4, 5 - 8, 6 - 8, 4 - 6, 2 - 6 and 2 - 3 for Al(III), Fe(II), Co(II), Cu(II), Cd(II) and Pb(II), respectively, and also the highest sorption capacity of the functionalized microspheres was found to be for Cu(II) with the value of 1.87 mmol g -1 . The detection limits (3σ; N = 6) obtained for the studied metals in the optimal conditions were observed in the range of 0.26 - 2.20 μg L -1 . The proposed method was successfully applied to different beverage samples for the determination of Al(III), Fe(II), Co(II), Cu(II), Cd(II) and Pb(II) ions, with the relative standard deviation of <3.7%.

  14. Diet History Questionnaire II FAQs | EGRP/DCCPS/NCI/NIH

    Science.gov (United States)

    Answers to general questions about the Diet History Questionnaire II (DHQ II), as well as those related to DHQ II administration, validation, scanning, nutrient estimates, calculations, DHQ II modification, data quality, and more.

  15. potentiometric studies of the complexes formed by copper (ii)

    African Journals Online (AJOL)

    MBI

    The overall stability constants of copper (II) and zinc (II) ions with some polar ... The average number of coordinated amino acids to the copper (II) and zinc (II) ions .... of chelated rings (Yamuchi and Odani, 1996). ... Synthesis and techniques in.

  16. ERB-II operating experience

    International Nuclear Information System (INIS)

    Smith, R.N.; Cissel, D.W.; Smith, R.R.

    1977-01-01

    As originally designed and operated, EBR-II successfully demonstrated the concept of a sodium-cooled fast breeder power plant with a closed fuel reprocessing cycle (mini-nuclear park). Subsequent operation has been as an irradiation facility, a role which will continue into the foreseeable future. Since the beginning of operation in 1961, operating experience of EBR-II has been very satisfactory. Most of the components and systems have performed well. In particular, the mechanical performance of heat-removal systems has been excellent. A review of the operating experience reveals that all the original design objectives have been successfully demonstrated. To date, no failures or incidents resulting in serious in-core or out-of-core consequences have occurred. No water-to-sodium leaks have been detected over the life of the plant. At the present time, the facility is operating very well and continuously except for short shutdowns required by maintenance, refueling, modification, and minor repair. A plant factor of 76.9% was achieved for the calendar year 1976

  17. THE SPECTRUM OF Fe II

    Energy Technology Data Exchange (ETDEWEB)

    Nave, Gillian [National Institute of Standards and Technology, Gaithersburg, MD 20899-8422 (United States); Johansson, Sveneric, E-mail: gillian.nave@nist.gov [Lund Observatory, University of Lund, Box 43, SE-22100 Lund (Sweden)

    2013-01-15

    The spectrum of singly ionized iron (Fe II) has been recorded using high-resolution Fourier transform (FT) and grating spectroscopy over the wavelength range 900 A to 5.5 {mu}m. The spectra were observed in high-current continuous and pulsed hollow cathode discharges using FT spectrometers at the Kitt Peak National Observatory, Tucson, AZ and Imperial College, London and with the 10.7 m Normal Incidence Spectrograph at the National Institute of Standards and Technology. Roughly 12,900 lines were classified using 1027 energy levels of Fe II that were optimized to measured wavenumbers. The wavenumber uncertainties of lines in the FT spectra range from 10{sup -4} cm{sup -1} for strong lines around 4 {mu}m to 0.05 cm{sup -1} for weaker lines around 1500 A. The wavelength uncertainty of lines in the grating spectra is 0.005 A. The ionization energy of (130,655.4 {+-} 0.4) cm{sup -1} was estimated from the 3d{sup 6}({sup 5}D)5g and 3d{sup 6}({sup 5}D)6h levels.

  18. BNL ATF II beamlines design

    Energy Technology Data Exchange (ETDEWEB)

    Fedurin, M. [Brookhaven National Lab. (BNL), Upton, NY (United States); Jing, Y. [Brookhaven National Lab. (BNL), Upton, NY (United States); Stratakis, D. [Brookhaven National Lab. (BNL), Upton, NY (United States); Swinson, C. [Brookhaven National Lab. (BNL), Upton, NY (United States)

    2015-05-03

    The Brookhaven National Laboratory. Accelerator Test Facility (BNL ATF) is currently undergoing a major upgrade (ATF-II). Together with a new location and much improved facilities, the ATF will see an upgrade in its major capabilities: electron beam energy and quality and CO2 laser power. The electron beam energy will be increased in stages, first to 100-150 MeV followed by a further increase to 500 MeV. Combined with the planned increase in CO2 laser power (from 1-100 TW), the ATF-II will be a powerful tool for Advanced Accelerator research. A high-brightness electron beam, produced by a photocathode gun, will be accelerated and optionally delivered to multiple beamlines. Besides the energy range (up to a possible 500 MeV in the final stage) the electron beam can be tailored to each experiment with options such as: small transverse beam size (<10 um), short bunch length (<100 fsec) and, combined short and small bunch options. This report gives a detailed overview of the ATFII capabilities and beamlines configuration.

  19. District heating concept Hirtenwiesen II; Nahwaermekonzept Hirtenwiesen II

    Energy Technology Data Exchange (ETDEWEB)

    Wagner, Josef [Stadtwerke Crailsheim GmbH, Crailsheim (Germany)

    2009-07-01

    Hirtenwiesen II is a new urban development project on an abandoned industrial site west of Crailsheim, Germany. It will house a population of about 2,000 and provide a comprehensive infrastructure including kindergarten, schools, sports centers and shopping centers. Modern amenities will be combined with environment-friendly energy concepts based on solar energy. A school building - Lise-Meitner-Gymnasium - and a sports hall - Hirtenwiesenhalle - will be supplied with solar power as well. Solar energy will provide more than 50 % of the energy required, which is more than average. Also, the solar power plant will have a collector surface of 10,000 m{sup 3} and a capacity of 7 MW{sub th}, which will make it Germany's biggest individual thermal solar power plant. (orig./AKB)

  20. Quiet High Speed Fan II (QHSF II): Final Report

    Science.gov (United States)

    Kontos, Karen; Weir, Don; Ross, Dave

    2012-01-01

    This report details the aerodynamic, mechanical, structural design and fabrication of a Honey Engines Quiet High Speed Fan II (lower hub/tip ratio and higher specific flow than the Baseline I fan). This fan/nacelle system incorporates features such as advanced forward sweep and an advanced integrated fan/fan exit guide vane design that provides for the following characteristics: (1) Reduced noise at supersonic tip speeds, in comparison to current state-of-the-art fan technology; (2) Improved aeroelastic stability within the anticipated operating envelope; and (3) Aerodynamic performance consistent with current state-of-the-art fan technology. This fan was fabricated by Honeywell and tested in the NASA Glenn 9- by 15-Ft Low Speed Wind Tunnel for aerodynamic, aeromechanical, and acoustic performance.

  1. Synthesis, characterization and polymerization of methacrylates of copper (II), cobalt (II) and molybdenum (II). Generation of new materials

    International Nuclear Information System (INIS)

    Rojas Bolanos, Omar

    2006-01-01

    Coordination compounds of the species copper (II), cobalt (II) and molybdenum (II) with methacrylic acid were synthesized and characterized. Besides, it realized reactions of bromine addition to the doubles links of the species obtained previously, also too like reactions with dry HCl. Finally, it got hybrids materials by polymerization of the first compounds in an acrylic matrix. Research concluded with the characterization of all the products. (author) [es

  2. Shark class II invariant chain reveals ancient conserved relationships with cathepsins and MHC class II.

    Science.gov (United States)

    Criscitiello, Michael F; Ohta, Yuko; Graham, Matthew D; Eubanks, Jeannine O; Chen, Patricia L; Flajnik, Martin F

    2012-03-01

    The invariant chain (Ii) is the critical third chain required for the MHC class II heterodimer to be properly guided through the cell, loaded with peptide, and expressed on the surface of antigen presenting cells. Here, we report the isolation of the nurse shark Ii gene, and the comparative analysis of Ii splice variants, expression, genomic organization, predicted structure, and function throughout vertebrate evolution. Alternative splicing to yield Ii with and without the putative protease-protective, thyroglobulin-like domain is as ancient as the MHC-based adaptive immune system, as our analyses in shark and lizard further show conservation of this mechanism in all vertebrate classes except bony fish. Remarkable coordinate expression of Ii and class II was found in shark tissues. Conserved Ii residues and cathepsin L orthologs suggest their long co-evolution in the antigen presentation pathway, and genomic analyses suggest 450 million years of conserved Ii exon/intron structure. Other than an extended linker preceding the thyroglobulin-like domain in cartilaginous fish, the Ii gene and protein are predicted to have largely similar physiology from shark to man. Duplicated Ii genes found only in teleosts appear to have become sub-functionalized, as one form is predicted to play the same role as that mediated by Ii mRNA alternative splicing in all other vertebrate classes. No Ii homologs or potential ancestors of any of the functional Ii domains were found in the jawless fish or lower chordates. Copyright © 2011 Elsevier Ltd. All rights reserved.

  3. Chelation of Cu(II, Zn(II, and Fe(II by Tannin Constituents of Selected Edible Nuts

    Directory of Open Access Journals (Sweden)

    Magdalena Karamać

    2009-12-01

    Full Text Available The tannin fractions isolated from hazelnuts, walnuts and almonds were characterised by colorimetric assays and by an SE-HPLC technique. The complexation of Cu(II and Zn(II was determined by the reaction with tetramethylmurexide, whereas for Fe(II, ferrozine was employed. The walnut tannins exhibited a significantly weaker reaction with the vanillin/HCl reagent than hazelnut and almond tannins, but the protein precipitation capacity of the walnut fraction was high. The SE-HPLC chromatogram of the tannin fraction from hazelnuts revealed the presence of oligomers with higher molecular weights compared to that of almonds. Copper ions were most effectively chelated by the constituents of the tannin fractions of hazelnuts, walnuts and almonds. At a 0.2 mg/assay addition level, the walnut tannins complexed almost 100% Cu(II. The Fe(II complexation capacities of the tannin fractions of walnuts and hazelnuts were weaker in comparison to that of the almond tannin fraction, which at a 2.5 mg/assay addition level, bound Fe(II by ~90%. The capacity to chelate Zn(II was quite varied for the different nut tannin fractions: almond tannins bound as much as 84% Zn(II, whereas the value for walnut tannins was only 8.7%; and for hazelnut tannins, no Zn(II chelation took place at the levels tested.

  4. Electrochemical, spectroscopic, and photophysical properties of structurally diverse polyazine-bridged Ru(II),Pt(II) and Os(II),Ru(II),Pt(II) supramolecular motifs.

    Science.gov (United States)

    Knoll, Jessica D; Arachchige, Shamindri M; Wang, Guangbin; Rangan, Krishnan; Miao, Ran; Higgins, Samantha L H; Okyere, Benjamin; Zhao, Meihua; Croasdale, Paul; Magruder, Katherine; Sinclair, Brian; Wall, Candace; Brewer, Karen J

    2011-09-19

    Five new tetrametallic supramolecules of the motif [{(TL)(2)M(dpp)}(2)Ru(BL)PtCl(2)](6+) and three new trimetallic light absorbers [{(TL)(2)M(dpp)}(2)Ru(BL)](6+) (TL = bpy = 2,2'-bipyridine or phen = 1,10-phenanthroline; M = Ru(II) or Os(II); BL = dpp = 2,3-bis(2-pyridyl)pyrazine, dpq = 2,3-bis(2-pyridyl)quinoxaline, or bpm = 2,2'-bipyrimidine) were synthesized and their redox, spectroscopic, and photophysical properties investigated. The tetrametallic complexes couple a Pt(II)-based reactive metal center to Ru and/or Os light absorbers through two different polyazine BL to provide structural diversity and interesting resultant properties. The redox potential of the M(II/III) couple is modulated by M variation, with the terminal Ru(II/III) occurring at 1.58-1.61 V and terminal Os(II/III) couples at 1.07-1.18 V versus Ag/AgCl. [{(TL)(2)M(dpp)}(2)Ru(BL)](PF(6))(6) display terminal M(dπ)-based highest occupied molecular orbitals (HOMOs) with the dpp(π*)-based lowest unoccupied molecular orbital (LUMO) energy relatively unaffected by the nature of BL. The coupling of Pt to the BL results in orbital inversion with localization of the LUMO on the remote BL in the tetrametallic complexes, providing a lowest energy charge separated (CS) state with an oxidized terminal Ru or Os and spatially separated reduced BL. The complexes [{(TL)(2)M(dpp)}(2)Ru(BL)](6+) and [{(TL)(2)M(dpp)}(2)Ru(BL)PtCl(2)](6+) efficiently absorb light throughout the UV and visible regions with intense metal-to-ligand charge transfer (MLCT) transitions in the visible at about 540 nm (M = Ru) and 560 nm (M = Os) (ε ≈ 33,000-42,000 M(-1) cm(-1)) and direct excitation to the spin-forbidden (3)MLCT excited state in the Os complexes about 720 nm. All the trimetallic and tetrametallic Ru-based supramolecular systems emit from the terminal Ru(dπ)→dpp(π*) (3)MLCT state, λ(max)(em) ≈ 750 nm. The tetrametallic systems display complex excited state dynamics with quenching of the (3)MLCT emission at

  5. Elaboration of a Highly Porous RuII,II Analogue of HKUST-1.

    Science.gov (United States)

    Zhang, Wenhua; Freitag, Kerstin; Wannapaiboon, Suttipong; Schneider, Christian; Epp, Konstantin; Kieslich, Gregor; Fischer, Roland A

    2016-12-19

    When the dinuclear Ru II,II precursor [Ru 2 (OOCCH 3 ) 4 ] is employed under redox-inert conditions, a Ru II,II analogue of HKUST-1 was successfully prepared and characterized as a phase-pure microcrystalline powder. X-ray absorption near-edge spectroscopy confirms the oxidation state of the Ru centers of the paddle-wheel nodes in the framework. The porosity of 1371 m 2 /mmol of Ru II,II -HKUST-1 exceeds that of the parent compound HKUST1 (1049 m 2 / mmol).

  6. Reacciones de adición a 1,1-BIS (Difenilfosfino) eteno activada por coordinación en compuestos ciclometalados de Pd(II) : complejos de metales de transición con disfosfinas funcionalizadas

    OpenAIRE

    Mosteiro Taboada, Roberto

    2016-01-01

    [Resumen] El trabajo consta de dos partes. La primera estudia la reactividad del doble enlace vinílico de la difosfina 1,1 bis (difenilfosfino)eteno (vdpp) frente a diferentes nucleófilos cuando ésta se encuentra coordinada actuando como ligando bidentado quelato en compuestos ciclometalados. Si bien el doble enlace del grupo vinílico de las fosfina libre presenta una reactividad muy limitada, la coordinación al metal produce su activación permitiendo llevar a cabo reaccion...

  7. Quantum mechanics II advanced topics

    CERN Document Server

    Rajasekar, S

    2015-01-01

    Quantum Mechanics II: Advanced Topics uses more than a decade of research and the authors’ own teaching experience to expound on some of the more advanced topics and current research in quantum mechanics. A follow-up to the authors introductory book Quantum Mechanics I: The Fundamentals, this book begins with a chapter on quantum field theory, and goes on to present basic principles, key features, and applications. It outlines recent quantum technologies and phenomena, and introduces growing topics of interest in quantum mechanics. The authors describe promising applications that include ghost imaging, detection of weak amplitude objects, entangled two-photon microscopy, detection of small displacements, lithography, metrology, and teleportation of optical images. They also present worked-out examples and provide numerous problems at the end of each chapter.

  8. Transdermic absorption of Melagenina II

    International Nuclear Information System (INIS)

    Hernandez Gonzalez, I.; Martinez Lopez, B.; Ruiz Pena, M.; Caso Pena, R.

    1997-01-01

    The transdermic absorption of Melagenina II (MII) was evaluated. MII was a labelled with 125I by the yodogen method and purified by column chromatography with Sephadex LH-20 in ethanol: water (7:3). In vitro absorption of ( 125I ) - MII thought human skin was carried out in Keshary-Chien modified diffusion cells. Tape stripping method was applied after 24 hours to evaluate the accumulated activity in dermis and epidermis. In vivo assays were performed in Sprague Dawley rats to analyze absorption of MII until 24 hours after a single application and for five days a low penetrability of the drug while in vivo there were not found blood levels significantly greater than zero , nevertheless and important amount of radioactivity was found in feces and urine. The activity was concentrated mainly in the application site in both models

  9. HERMES II experimenters' manual (revised)

    International Nuclear Information System (INIS)

    Schuch, R.L.

    1977-04-01

    The HERMES II is a high-intensity laboratory photon source for gamma-ray radiation effects experiments as well as a high-energy pulsed electron beam generator for a variety of potential applications. The purpose of this manual is to serve as a basic source of information for prospective users of HERMES. Included is a brief discussion of the design and operation of the accelerator system as well as a summary of environmental data for x-ray operation and output characteristics for electron beam modes. The manual also contains a description of the HERMES experimental facilities, including geometry of the test cell, instrumentation and data collection capabilities, and services and support available to experimenters

  10. RTNS-II utilization plan

    Energy Technology Data Exchange (ETDEWEB)

    Zwilsky, Klaus M.

    1978-09-01

    This plan describes a general program for the effective utilization of this resource by the fusion materials community. Because its flux is low relative to levels expected in commercial fusion reactors, the RINS-II is not expected to produce data of direct engineering significance (with some exceptions). Rather, it will be used chiefly to aid in the development of models of high energy neutron effects. Such models are needed in projecting engineering data obtained in high flux fission reactors to the fusion environment. Fission reactors, because of their relatively soft neutron spectra, cannot produce the high ratio of transmutations to displacements (except in an important special case) or the high energy recoil atoms appropriate to fusion reactors utilizing the D-T reaction.

  11. PEP-II prototype klystron

    International Nuclear Information System (INIS)

    Fowkes, W.R.; Caryotakis, G.; Lee, T.G.; Pearson, C.; Wright, E.L.

    1993-04-01

    A 540-kW continuous-wave (cw) klystron operating at 476 MHz was developed for use as a power source for testing PEP-II rf accelerating cavities and rf windows. It also serves as a prototype for a 1.2 MW cw klystron presently being developed as a potential rf source for asymmetric colliding ring use. The design incorporates the concepts and many of the parts used in the original 353 MHz PEP klystron developed sixteen years ago. The superior computer simulation codes available today result in improved performance with the cavity frequencies, drift lengths, and output circuit optimized for the higher frequency.The design and operating results of this tube are described with particular emphasis on the factors which affect efficiency and stability

  12. Sample Exchange Evaluation (SEE) Report - Phase II

    Energy Technology Data Exchange (ETDEWEB)

    Winters, W.I.

    1994-09-28

    This report describes the results from Phase II of the Sample Exchange Evaluation (SEE) Program, a joint effort to compare analytical laboratory performance on samples from the Hanford Site`s high-level waste tanks. In Phase II, the program has been expanded to include inorganic constituents in addition to radionuclides. Results from Phase II that exceeded 20% relative percent difference criteria are identified.

  13. Start II, red ink, and Boris Yeltsin

    International Nuclear Information System (INIS)

    Arbatov, A.

    1993-01-01

    Apart from the vulnerability implied by the START II treaty, it will bear the burden of the general political opposition to the Yeltsin administration. START II will be seen as part of an overall Yeltsin-Andrei Kozyrev foreign policy that is under fire for selling out Russian national interests in Yugoslavia, the Persian Gulf, and elsewhere. This article discusses public opinion concerning START II, the cost of its implementation, and the general purpose of the treaty

  14. SWAMI II technology transfer plan

    International Nuclear Information System (INIS)

    Ward, C.R.; Peterson, K.D.; Harpring, L.J.; Immel, D.M.; Jones, J.D.; Mallet, W.R.

    1995-01-01

    Thousands of drums of radioactive/hazardous/mixed waste are currently stored at DOE sites throughout US; they are stored in warehouse facilities on an interim basis, pending final disposition. Recent emphasis on anticipated decommissioning of facilities indicates that many more drums of waste will be generated, requiring additional storage. Federal and state regulations dictate that hazardous waste covered by RCRA be inspected periodically for container degradation and to verify inventories. All known DOE waste storage facilities are currently inspected manually. A system to perform robotic inspection of waste drums is under development by the SRTC Robotics Group of WSRC; it is called the Stored Waste Autonomous Mobile Inspector (SWAMI). The first version, SWAMI I, was developed by the Savannah River Technology Center (SRTC) as a proof of principle system for autonomous inspection of drums in a warehouse. SWAMI I was based on the Transitions Research Corporation (TRC) HelpMate mobile robot. TRC modified the Helpmate to navigate in aisles of drums. SRTC added subsystems to SWAMI I to determine its position in open areas, read bar code labels on the drums up to three levels high, capture images of the drums and perform a radiation survey of the floor in the aisles. The radiation survey was based on SRTC patented technology first implemented on the Semi-Intelligent Mobile Observing Navigator (SIMON). The radiation survey is not essential for the inspection of drums, but is an option that can increase the utility and effectiveness of SWAMI in warehouses with radioactive and/or mixed waste. All the sensors on SWAMI I were fixed on the vehicle. From the success of SWAMI I, a second version, SWAMI II, was developed; it will be evaluated at Fernald and tested with two other mobile robots. Intent is to transfer the technology developed for SWAMI I and II to industry so that it can supply additional units for purchase for drum inspection

  15. MHC Class II epitope predictive algorithms

    DEFF Research Database (Denmark)

    Nielsen, Morten; Lund, Ole; Buus, S

    2010-01-01

    Major histocompatibility complex class II (MHC-II) molecules sample peptides from the extracellular space, allowing the immune system to detect the presence of foreign microbes from this compartment. To be able to predict the immune response to given pathogens, a number of methods have been...... developed to predict peptide-MHC binding. However, few methods other than the pioneering TEPITOPE/ProPred method have been developed for MHC-II. Despite recent progress in method development, the predictive performance for MHC-II remains significantly lower than what can be obtained for MHC-I. One reason...

  16. Spectroscopic and thermal degradation behavior of Mg(II), Ca(II), Ba(II) and Sr(II) complexes with paracetamol drug

    OpenAIRE

    Moamen S. Refat; Gehad G. Mohamed; Mohamed Y. El-Sayed; Hamada M.A. Killa; Hammad Fetooh

    2017-01-01

    Complexes of Mg(II), Ca(II), Ba(II) and Sr(II) with paracetamol drug were synthesized and characterized by elemental analysis, conductivity, UV–Vis, IR, and 1H NMR spectroscopy and thermal analysis, as well as screened for antimicrobial activity. The IR spectral data suggested that the ligand behaves as paracetamol behaves as a neutral bidentate ligand coordinated to the metal ions via the lone pair of electrons of nitrogen and carbonyl-O atoms of the amide group. From the microanalytical dat...

  17. TRUPACT-II Container Maintenance Program Plan

    International Nuclear Information System (INIS)

    1991-05-01

    This document details the maintenance, repair, and replacement of components, as well as the documentation required and the procedures to be followed to maintain the integrity of the TRUPACT-II container in accordance with OM-134, TRUPACT-II Container Operations and Maintenance Manual; and the TRUPACT-II Container Certificate of Compliance (Number 9218). The routine shipping and receiving inspections required by the Department of Transportation (DOT), Department of Energy (DOE), Nuclear Regulatory Commission (NRC) and other regulations are not addressed in this document. This document applies to all DOE shipping and receiving sites that use the TRUPACT-II containers

  18. Optimization of simultaneous electrochemical determination of Cd(II), Pb(II), Cu(II) and Hg(II) at carbon nanotube-modified graphite electrodes.

    Science.gov (United States)

    Pikna, L'ubomír; Heželová, Mária; Kováčová, Zuzana

    2015-01-01

    The health of the environment is worsening every day. Monitoring of potentially toxic elements and remediation of environmental pollution are necessary. Therefore, the research and development of simple, inexpensive, portable and effective sensors is important. Electrochemistry is a useful component of the field of environment monitoring. The present study focuses on evaluating and comparing three types of electrodes (PIGE, PIGE/MWCNT/HNO3 and PIGE/MWCNT/EDTA/HNO3) employed for the simultaneous electrochemical determination of four potentially toxic elements: Cd(II), Pb(II), Cu(II) and Hg(II). Cyclic voltammograms were measured in an acetate buffer. The LOD, LOQ, the standard and relative precisions of the method and a prediction intervals were calculated (according to the technical procedure DIN 32 645) for the three electrodes and for each measured element. The LOD for PIGE/CNT/HNO3 (the electrode with narrowest calculated prediction intervals) was 2.98 × 10(-7) mol L(-1) for Cd(II), 4.83 × 10(-7) mol L(-1) for Pb(II), 3.81 × 10(-7) mol L(-1) for Cu(II), 6.79 × 10(-7) mol L(-1) for Hg(II). One of the benefits of this study was the determination of the amount of Hg(II) in the mixture of other elements.

  19. Biosorption of Fe (II) and Cd (II) ions from aqueous solution using a ...

    African Journals Online (AJOL)

    ADOWIE PERE

    Biosorption of Fe (II) and Cd (II) ions from aqueous solution using a low cost ... human activities in the environment poses a lot of risk ... ion exchange or reverse osmosis, electrochemical treatment ..... is the adsorption coefficient, n indicates the.

  20. Serum insulin-like growth factor II (IGF-II) in chronic heart failure

    International Nuclear Information System (INIS)

    Tong Lijun; Chen Donghai; Ji Naijun; Fan Bifu; Wang Chengyao; Mei Yibin; Li Fuyuan; Kao Yan

    2004-01-01

    Objective: To investigate the clinical significance of changes of serum insulin-like growth factor II (IGF-II) levels in patients with chronic heart failure. Methods: Serum IGF-II levels were measured with RIA in 132 cases of chronic heart failure and 45 controls. Results: Serum IGF-II levels were significantly higher in patients with chronic heart failure than those in the controls (t=0.033, P<0.001). IGF-II levels were highest in grade IV CHF patients (vs grade II t=3.963, P<0.01; vs grade III, t=3.578, P<0.01). In the twelve patients died in hospital, the serum IGF-II levels were significantly higher than those patients recovered (t=7.141, P<0.01). Conclusion: Serum IGF-II levels were increased in CHF patients and were highest in the most severe cases. (authors)

  1. Syntheses and spectroscopic properties of mercury(II) and nickel(II ...

    African Journals Online (AJOL)

    Syntheses and spectroscopic properties of mercury(II) and nickel(II) ... The complexes were characterized by IR, diffuse reflectance, 1H NMR spectra and elemental ... coordinating through thiolato sulphur and hydrazinic nitrogen atoms.

  2. MHC class II expression in lung cancer.

    Science.gov (United States)

    He, Yayi; Rozeboom, Leslie; Rivard, Christopher J; Ellison, Kim; Dziadziuszko, Rafal; Yu, Hui; Zhou, Caicun; Hirsch, Fred R

    2017-10-01

    Immunotherapy is an exciting development in lung cancer research. In this study we described major histocompatibility complex (MHC) Class II protein expression in lung cancer cell lines and patient tissues. We studied MHC Class II (DP, DQ, DR) (CR3/43, Abcam) protein expression in 55 non-small cell lung cancer (NSCLC) cell lines, 42 small cell lung cancer (SCLC) cell lines and 278 lung cancer patient tissues by immunohistochemistry (IHC). Seven (12.7%) NSCLC cell lines were positive for MHC Class II. No SCLC cell lines were found to be MHC Class II positive. We assessed 139 lung cancer samples available in the Hirsch Lab for MHC Class II. There was no positive MHC Class II staining on SCLC tumor cells. MHC Class II expression on TILs in SCLC was significantly lower than that on TILs in NSCLC (P<0.001). MHC Class II was also assessed in an additional 139 NSCLC tumor tissues from Medical University of Gdansk, Poland. Patients with positive staining of MHC Class II on TILs had longer regression-free survival (RFS) and overall survival (OS) than those whose TILs were MHC Class II negative (2.980 years, 95% CI 1.628-4.332 vs. 1.050 years, 95% CI 0.556-1.554, P=0.028) (3.230 years, 95% CI 2.617-3.843 vs. 1.390 years, 95% CI 0.629-2.151, P=0.014). MHC Class II was expressed both in NSCLC cell lines and tissues. However, MHC Class II was not detected in SCLC cell lines or tissue tumor cells. MHC Class II expression was lower on SCLC TILs than on NSCLC TILs. Loss of expression of MHC Class II on SCLC tumor cells and reduced expression on SCLC TILs may be a means of escaping anti-cancer immunity. Higher MHC Class II expression on TILs was correlated with better prognosis in patients with NSCLC. Copyright © 2017. Published by Elsevier B.V.

  3. Competitive adsorption of copper(II), cadmium(II), lead(II) and zinc(II) onto basic oxygen furnace slag

    International Nuclear Information System (INIS)

    Xue Yongjie; Hou Haobo; Zhu Shujing

    2009-01-01

    Polluted and contaminated water can often contain more than one heavy metal species. It is possible that the behavior of a particular metal species in a solution system will be affected by the presence of other metals. In this study, we have investigated the adsorption of Cd(II), Cu(II), Pb(II), and Zn(II) onto basic oxygen furnace slag (BOF slag) in single- and multi-element solution systems as a function of pH and concentration, in a background solution of 0.01 M NaNO 3 . In adsorption edge experiments, the pH was varied from 2.0 to 13.0 with total metal concentration 0.84 mM in the single element system and 0.21 mM each of Cd(II), Cu(II), Pb(II), and Zn(II) in the multi-element system. The value of pH 50 (the pH at which 50% adsorption occurs) was found to follow the sequence Zn > Cu > Pb > Cd in single-element systems, but Pb > Cu > Zn > Cd in the multi-element system. Adsorption isotherms at pH 6.0 in the multi-element systems showed that there is competition among various metals for adsorption sites on BOF slag. The adsorption and potentiometric titrations data for various slag-metal systems were modeled using an extended constant-capacitance surface complexation model that assumed an ion-exchange process below pH 6.5 and the formation of inner-sphere surface complexes at higher pH. Inner-sphere complexation was more dominant for the Cu(II), Pb(II) and Zn(II) systems

  4. Competitive adsorption of copper(II), cadmium(II), lead(II) and zinc(II) onto basic oxygen furnace slag

    Energy Technology Data Exchange (ETDEWEB)

    Xue Yongjie [School of Resource and Environment Science, Wuhan University, Hubei, Wuhan (China); Wuhan Kaidi Electric Power Environmental Protection Co. Ltd., Hubei, Wuhan (China)], E-mail: xueyj@mail.whut.edu.cn; Hou Haobo; Zhu Shujing [School of Resource and Environment Science, Wuhan University, Hubei, Wuhan (China)

    2009-02-15

    Polluted and contaminated water can often contain more than one heavy metal species. It is possible that the behavior of a particular metal species in a solution system will be affected by the presence of other metals. In this study, we have investigated the adsorption of Cd(II), Cu(II), Pb(II), and Zn(II) onto basic oxygen furnace slag (BOF slag) in single- and multi-element solution systems as a function of pH and concentration, in a background solution of 0.01 M NaNO{sub 3}. In adsorption edge experiments, the pH was varied from 2.0 to 13.0 with total metal concentration 0.84 mM in the single element system and 0.21 mM each of Cd(II), Cu(II), Pb(II), and Zn(II) in the multi-element system. The value of pH{sub 50} (the pH at which 50% adsorption occurs) was found to follow the sequence Zn > Cu > Pb > Cd in single-element systems, but Pb > Cu > Zn > Cd in the multi-element system. Adsorption isotherms at pH 6.0 in the multi-element systems showed that there is competition among various metals for adsorption sites on BOF slag. The adsorption and potentiometric titrations data for various slag-metal systems were modeled using an extended constant-capacitance surface complexation model that assumed an ion-exchange process below pH 6.5 and the formation of inner-sphere surface complexes at higher pH. Inner-sphere complexation was more dominant for the Cu(II), Pb(II) and Zn(II) systems.

  5. Competitive adsorption of copper(II), cadmium(II), lead(II) and zinc(II) onto basic oxygen furnace slag.

    Science.gov (United States)

    Xue, Yongjie; Hou, Haobo; Zhu, Shujing

    2009-02-15

    Polluted and contaminated water can often contain more than one heavy metal species. It is possible that the behavior of a particular metal species in a solution system will be affected by the presence of other metals. In this study, we have investigated the adsorption of Cd(II), Cu(II), Pb(II), and Zn(II) onto basic oxygen furnace slag (BOF slag) in single- and multi-element solution systems as a function of pH and concentration, in a background solution of 0.01M NaNO(3). In adsorption edge experiments, the pH was varied from 2.0 to 13.0 with total metal concentration 0.84mM in the single element system and 0.21mM each of Cd(II), Cu(II), Pb(II), and Zn(II) in the multi-element system. The value of pH(50) (the pH at which 50% adsorption occurs) was found to follow the sequence Zn>Cu>Pb>Cd in single-element systems, but Pb>Cu>Zn>Cd in the multi-element system. Adsorption isotherms at pH 6.0 in the multi-element systems showed that there is competition among various metals for adsorption sites on BOF slag. The adsorption and potentiometric titrations data for various slag-metal systems were modeled using an extended constant-capacitance surface complexation model that assumed an ion-exchange process below pH 6.5 and the formation of inner-sphere surface complexes at higher pH. Inner-sphere complexation was more dominant for the Cu(II), Pb(II) and Zn(II) systems.

  6. Derivation of electron density and temperature from (S II) and (O II) line intensity ratios

    Energy Technology Data Exchange (ETDEWEB)

    Canto, J; Meaburn, J; Theokas, A C [Manchester Univ. (UK). Dept of Astronomy; Elliott, K H [Anglo-Australian Observatory, Epping (Australia)

    1980-12-01

    Line intensity ratios for (S II) and (O II) due to collisional de-excitation are briefly discussed. Comparison is made between various reaction rate parameters presented by separate investigators. Included are observations of ratios obtained from the Orion nebula which experimentally confirm the reaction rates of Pradhan as best representing the observed distribution of these ratios. (O II) and (S II) contour plots are also presented, which allow effective electron temperatures and densities to be estimated from pairs of line ratios.

  7. Low-temperature Synthesis of Tin(II) Oxide From Tin(II) ketoacidoximate Precursor

    KAUST Repository

    Alshankiti, Buthainah

    2015-01-01

    Sn (II) oxide finds numerous applications in different fields such as thin film transistors1, solar cells2 and sensors.3 In this study we present the fabrication of tin monoxide SnO by using Sn (II) ketoacid oximate complexes as precursors. Tin (II

  8. Mutation and biochemical analysis in carnitine palmitoyltransferase type II (CPT II) deficiency

    DEFF Research Database (Denmark)

    Olpin, S E; Afifi, A; Clark, S

    2003-01-01

    Carnitine palmitoyltransferase type II (CPT II) deficiency has three basic phenotypes, late-onset muscular (mild), infantile/juvenile hepatic (intermediate) and severe neonatal. We have measured fatty acid oxidation and CPT II activity and performed mutation studies in 24 symptomatic patients...

  9. Biosorption of Cd(II) and Zn(II) by nostoc commune: isotherm and kinetics studies

    Energy Technology Data Exchange (ETDEWEB)

    Morsy, Fatthy M. [Faculty of Science, Botany Department, Assiut University, Assiut (Egypt); Hassan, Sedky H.A. [Department of Biological Environment, Kangwon National University, Kangwon-do (Korea, Republic of); Koutb, Mostafa [Faculty of Science, Botany Department, Assiut University, Assiut (Egypt); Umm Al-Qura University, Faculty of Applied Science, Biology Department, Mecca (Saudi Arabia)

    2011-07-15

    In this study, Nostoc commune (cyanobacterium) was used as an inexpensive and efficient biosorbent for Cd(II) and Zn(II) removal from aqueous solutions. The effect of various physicochemical factors on Cd(II) and Zn(II) biosorption such as pH 2.0-7.0, initial metal concentration 0.0-300 mg/L and contact time 0-120 min were studied. Optimum pH for removal of Cd(II) and Zn(II) was 6.0, while the contact time was 30 min at room temperature. The nature of biosorbent and metal ion interaction was evaluated by infrared (IR) technique. IR analysis of bacterial biomass revealed the presence of amino, carboxyl, hydroxyl, and carbonyl groups, which are responsible for biosorption of Cd(II) and Zn (II). The maximum biosorption capacities for Cd(II) and Zn(II) biosorption by N. commune calculated from Langmuir biosorption isotherm were 126.32 and 115.41 mg/g, respectively. The biosorption isotherm for two biosorbents fitted well with Freundlich isotherm than Langmuir model with correlation coefficient (r{sup 2} < 0.99). The biosorption kinetic data were fitted well with the pseudo-second-order kinetic model. Thus, this study indicated that the N. commune is an efficient biosorbent for the removal of Cd(II) and Zn(II) from aqueous solutions. (Copyright copyright 2011 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)

  10. Synthesis, spectroscopic and antimicrobial properties of Co(II), Ni (II ...

    African Journals Online (AJOL)

    The objective of this study is to investigate the antimicrobial activity of novel Schiff base metal complexes. The resistance of micro-organisms to classical antimicrobial compounds poses a challenge to effective management and treatment of some diseases. In line with this, copper (II), nickel (II) and cobalt (II) complexes of ...

  11. The CDF SVX II detector upgrade

    International Nuclear Information System (INIS)

    Skarha, J.E.

    1993-10-01

    The proposed CDF SVX II detector upgrade for secondary vertex detection during the Fermilab Tevatron Run II collider run is described. The general design and important features of this silicon vertex detector are presented. The CDF physics goals which are addressed by this detector are also given

  12. Photocleavage of DNA by copper (II) complexes

    Indian Academy of Sciences (India)

    The chemistry of ternary and binary copper(II) complexes showing efficient visible lightinduced DNA cleavage activity is summarized in this article. The role of the metal in photo-induced DNA cleavage reactions is explored by designing complex molecules having a variety of ligands. Ternary copper(II) complexes with amino ...

  13. TRUPACT-II procedures and maintenance instructions

    International Nuclear Information System (INIS)

    1994-01-01

    The purpose of this document is to provide the technical requirements for operation, inspection and maintenance of a TRUPACT-II Shipping Package and directly related components. This document shall supply the minimum requirements as specified in the TRUPACT-II Safety Analysis Report for Packaging (SARP) and Certificate of Compliance (C of C) 9218. In the event there is a conflict between this document and the TRUPACT-II SARP (NRC Certificate of Compliance No. 9218), the TRUPACT-II SARP shall govern. This document details the operations, maintenance, repair, replacement of components, as well as the documentation required and the procedures to be followed to maintain the integrity of the TRUPACT-II container. These procedures may be modified for site use, but as a minimum all parameters and format listed herein must be included in any site modified version. For convenience and where applicable steps may be performed out of sequence. Packaging and payload handling equipment and transport trailers have been specifically designed for use with the TRUPACT-II Packaging. This document discusses the minimum required procedures for use of the adjustable center of gravity lift fixture and the TRUPACT-II transport trailer in conjunction with the TRUPACT-II Packaging

  14. World War II Homefront: A Historiography.

    Science.gov (United States)

    Winkler, Allan M.

    2002-01-01

    Highlights the scholarship that exists on the World War II homefront covering topics such as World War II as a good war, Franklin D. Roosevelt, economic policy, propaganda, status of women and women's employment, the role of African Americans, racial violence, and the Japanese American experience. (CMK)

  15. 24 CFR 202.12 - Title II.

    Science.gov (United States)

    2010-04-01

    ... INSTITUTIONS AND MORTGAGEES Title I and Title II Specific Requirements § 202.12 Title II. (a) Tiered pricing—(1... rate up to two percentage points under the mortgagee's customary lending practices must be based on... after accounting for the value of servicing rights generated by making the loan and other income to the...

  16. World War II Memorial Learning Activities.

    Science.gov (United States)

    Tennessee State Dept. of Education, Nashville.

    These learning activities can help students get the most out of a visit to the Tennessee World War II Memorial, a group of ten pylons located in Nashville (Tennessee). Each pylon contains informational text about the events of World War II. The ten pylons are listed as: (1) "Pylon E-1--Terror: America Enters the War against Fascism, June…

  17. Technical specifications: Tower Shielding Reactor II

    International Nuclear Information System (INIS)

    1979-02-01

    The technical specifications define the key limitations that must be observed for safe operation of the Tower Shielding Reactor II (TSR-II) and an envelope of operation within which there is reasonable assurance that these limits cannot be exceeded. The specifications were written to satisfy the requirements of the Department of Energy (DOE) Manual Chapter 0540, September 1, 1972

  18. DART II documentation. Volume III. Appendices

    Energy Technology Data Exchange (ETDEWEB)

    1979-10-01

    The DART II is a remote, interactive, microprocessor-based data acquistion system suitable for use with air monitors. This volume of DART II documentation contains the following appendixes: adjustment and calibration procedures; mother board signature list; schematic diagrams; device specification sheets; ROM program listing; 6800 microprocessor instruction list, octal listing; and cable lists. (RWR)

  19. Sex differences in angiotensin II- induced hypertension

    Directory of Open Access Journals (Sweden)

    B. Xue

    2007-05-01

    Full Text Available Sex differences in the development of hypertension and cardiovascular disease have been described in humans and in animal models. In this paper we will review some of our studies which have as their emphasis the examination of the role of sex differences and sex steroids in modulating the central actions of angiotensin II (ANG II via interactions with free radicals and nitric oxide, generating pathways within brain circumventricular organs and in central sympathomodulatory systems. Our studies indicate that low-dose infusions of ANG II result in hypertension in wild-type male mice but not in intact wild-type females. Furthermore, we have demonstrated that ANG II-induced hypertension in males is blocked by central infusions of the androgen receptor antagonist, flutamide, and by central infusions of the superoxide dismutase mimetic, tempol. We have also found that, in comparison to females, males show greater levels of intracellular reactive oxygen species in circumventricular organ neurons following long-term ANG II infusions. In female mice, ovariectomy, central blockade of estrogen receptors or total knockout of estrogen a receptors augments the pressor effects of ANG II. Finally, in females but not in males, central blockade of nitric oxide synthase increases the pressor effects of ANG II. Taken together, these results suggest that sex differences and estrogen and testosterone play important roles in the development of ANG II-induced hypertension.

  20. Oral Assessment Kit, Levels II & III. Draft.

    Science.gov (United States)

    Agrelo-Gonzalez, Maria; And Others

    The assessment packet includes a series of oral tests to help develop speaking as an integral part of second language instruction at levels II and III. It contains: 8 mini-tests for use at level II; 9 mini-tests for use at level III; a rating scale and score sheet masters for evaluating performance on these tests; and a collection of suggested…

  1. Metallothionein-I+II in neuroprotection

    DEFF Research Database (Denmark)

    Pedersen, Mie Ø; Jensen, Rikke; Pedersen, Dan S

    2009-01-01

    -I+II decrease inflammation and secondary tissue damage (oxidative stress, neurodegeneration, and apoptosis) and promote post-injury repair and regeneration (angiogenesis, neurogenesis, neuronal sprouting and tissue remodelling). Intracellularly the molecular MT-I+II actions involve metal ion control...... encephalomyelitis. (c) 2009 International Union of Biochemistry and Molecular Biology, Inc....

  2. Análise da freqüência cardíaca, pressão arterial e duplo-produto em diferentes posições corporais nos exercícios resistidos Análisis de la frecuencia cardíaca, presion arterial y doble-producto en diferentes posiciones corporales en los ejercícios resistidos Analysis on the cardiac rate, blood pressure and doubled-product in different body positions in resisted exercises

    Directory of Open Access Journals (Sweden)

    Humberto Miranda

    2005-10-01

    Full Text Available Atualmente, os exercícios resistidos (ER vêm sofrendo uma série de investigações, devido à importância que atingiram no desenvolvimento do condicionamento cardiorrespiratório e neuromuscular. Para prescrição dos ER, algumas variáveis devem ser monitoradas, tais como freqüência cardíaca (FC e a pressão arterial (PA. A associação entre FC e PA fornece dados para se obter o duplo produto (DP. Essas variáveis foram utilizadas para analisar e comparar as respostas hemodinâmicas do supino reto sentado (SRS e o supino reto deitado (SRD, sendo realizadas 10 repetições a 65% de uma repetição máxima (1RM. A amostra foi constituída de 14 indivíduos (10 mulheres e quatro homens, idade 23 (± 4 anos, peso corporal 61 (± 7kg e estatura 168cm (± 5cm. Como material de coleta foram utilizados freqüencímetro Polar MZ1 (Finlândia, esfigmomanômetro Vasquez-Lubry (Alemanha e um estetoscópio Littman (EUA. Foi utilizado o teste t-Student pareado, para efeito de comparação entre os valores encontrados nas variáveis fisiológicas. A análise estatística teve como critério de significância p Actualmente, los ejercícios resistidos (ER vienen sufriendo una série de investigaciones, debido a la importancia que tengan en el desenvolvimiento del acondicionamiento cardiorespiratório y neuromuscular. Para la prescripción de los ER, algunas variables deben ser monitoreadas, tales como frecuencia cardíaca (FC y la presión arterial (PA. La asociación entre la FC y PA provee los datos para obtener el doble producto (DP. Esas variables fueron utilizadas para analizar y comparar las respuestas hemodinámicas de supino sentado recto (SRS y de supino acostado recto (SRD, siendo realizadas 10 repeticiones a 65% de una repetición máxima (1RM. La amuestra estaba constituída de 14 indivíduos (10 mujeres y 4 hombres, edad 23 (± 4 años, peso corporal 61 (± 7 kg y estatura 168 cm (± 5 cm. Como material de coleta fueron utilizados frecuenc

  3. TRUPACT-II container maintenance program plan

    International Nuclear Information System (INIS)

    1990-11-01

    This document details the maintenance/repair and replacement of components, as well as the documentation required and the procedures to be followed to maintain the integrity of the TRUPACT-II container, in accordance with requirements of the TRUPACT-II Container Operations and Maintenance Manual, OM-134, the TRUPACT-II Container Safety Analysis Report (SARP), and the TRUPACT-II Container Certificate of Compliance (Number 9218). The routine shipping and receiving inspections required by the Department of Transportation (DOT), Department of Energy (DOE), Nuclear Regulatory Commission (NRC) and other regulations are not addressed in this document. This document applies to all DOE shipping and receiving sites that use the TRUPACT-II containers

  4. ETA-II accelerator upgrades

    International Nuclear Information System (INIS)

    Nilson, D.G.; Deadrick, F.J.; Hibbs, S.M.; Sampayan, S.E.; Petersen, D.E.

    1991-09-01

    We discuss recent improvements to the ETA-II linear induction electron accelerator. The accelerator's cells have been carefully reconditioned to raise the maximum accelerating gap voltage from approximately 100 kV to 125 kV. Insulators of Rexolite plastic in a new ''zero-gap'' arrangement replaced the alumina originals after several alternative materials were investigated. A new multi-cable current feed system will be used to eliminate pulse reflection interactions encountered in earlier experiments. Improved alignment fixtures have been installed to help minimize beam perturbation due to poorly aligned intercell magnets between 10-cell groups. A stretched wire alignment technique (SWAT) has been utilized to enhance overall magnetic alignment, and to characterize irreducible alignment errors. These changes are in conjunction with an expansion of the accelerator from a 20-cell to a 60-cell configuration. When completed, the upgraded accelerator is expected to deliver 2.5 kA of electron beam current at 7.5 MeV in bursts of up to fifty 70-ns pulses at a 5-kHz repetition rate. A 5.5-meter-long wiggler will convert the energy into 3-GW microwave pulses at 140 GHz for plasma heating experiments in the Microwave Tokamak Experiment (MTX)

  5. The Steksovo II burial ground

    Directory of Open Access Journals (Sweden)

    Martianov Vladimir N.

    2014-12-01

    Full Text Available The article is dedicated to the results of many-years’ (1990-2010 excavations on the ancient Mordovian Steksovo II burial ground site. The burial ground had functioned in the 3rd to 13th centuries AD. The investigations revealed hundreds of burials, which enabled the researchers to judge upon the wealth of material items found and the variety of burial rites of the population that had formed the burial ground. The 1st millennium AD is characterized by bi-ritualism, while inhumation is characteristic of the 11-13th-century period; horses’ burials were also discovered. The data of the burial ground make it possible to modify the concept of the stages in ancient Mordovians ethnogenesis. It is generally attributed to the Erzya Mordvins, but in early burials the combination of the Erzya and Moksha ancientries is traced. Complexes of the items of crucial importance for the chronology of the burial are discussed in the article with a representation of statistical data characterizing funeral rites and traditions.

  6. Aspects of differential geometry II

    CERN Document Server

    Gilkey, Peter

    2015-01-01

    Differential Geometry is a wide field. We have chosen to concentrate upon certain aspects that are appropriate for an introduction to the subject; we have not attempted an encyclopedic treatment. Book II deals with more advanced material than Book I and is aimed at the graduate level. Chapter 4 deals with additional topics in Riemannian geometry. Properties of real analytic curves given by a single ODE and of surfaces given by a pair of ODEs are studied, and the volume of geodesic balls is treated. An introduction to both holomorphic and Kähler geometry is given. In Chapter 5, the basic properties of de Rham cohomology are discussed, the Hodge Decomposition Theorem, Poincaré duality, and the Künneth formula are proved, and a brief introduction to the theory of characteristic classes is given. In Chapter 6, Lie groups and Lie algebras are dealt with. The exponential map, the classical groups, and geodesics in the context of a bi-invariant metric are discussed. The de Rham cohomology of compact Lie groups an...

  7. TRUPACT-II, a regulatory perspective

    International Nuclear Information System (INIS)

    Gregory, P.C.; Spooner, O.R.

    1995-01-01

    The Transuranic Package Transporter II (TRUPACT-II) is a US Nuclear Regulatory Commission (NRC) certified Type B packaging for the shipment of contact-handled transuranic (CH-TRU) material by the US Department of Energy (DOE). The NRC approved the TRUPACT-II design as meeting the requirements of Title 10, Code of Federal Regulations, Part 71 (10 CFR 71) and issued Certificate of Compliance (CofC) Number 9218 to the DOE. There are currently 15 certified TRUPACT-IIs. Additional TRUPACT-IIs will be required to make more than 15,000 shipments of CH-TRU waste to the Waste Isolation Pilot Plant (WIPP) site near Carlsbad, New Mexico. The TRUPACT-II may also be used for the DOE inter-site and intra-site shipments of CH-TRU waste. The Land Withdrawal Act (Public Law 102-579), enacted by the US Congress, October 30, 1992, and an agreement between the DOE and the State of New Mexico, signed August 4, 1987, both stipulate that only NRC approved packaging may be used for shipments of TRU waste to the WIPP. Early in the TRUPACT-II development phase it was decided that the transportation system (tractor, trailer, and TRUPACT-II) should be highway legal on all routes without the need for oversize and/or overweight permits. In large measure, public acceptance of the DOE's efforts to safely transport CH-TRU waste depends on the public's perception that the TRUPACT-II is in compliance with all applicable regulations, standards, and quality assurance requirements. This paper addresses some of the numerous regulations applicable to Type B packaging, and it describes how the TRUPACT-II complies with these regulations

  8. Equilibrium and kinetic studies of Pb(II, Cd(II and Zn(II sorption by Lagenaria vulgaris shell

    Directory of Open Access Journals (Sweden)

    Mitić-Stojanović Dragana-Linda

    2012-01-01

    Full Text Available The sorption of lead, cadmium and zinc ions from aqueous solution by Lagenaria vulgaris shell biosorbent (LVB in batch system was investigated. The effect of relevant parameters such as contact time, biosorbent dosage and initial metal ions concentration was evaluated. The Pb(II, Cd(II and Zn(II sorption equilibrium (when 98% of initial metal ions were sorbed was attained within 15, 20 and 25 min, respectively. The pseudo first, pseudo-second order, Chrastil’s and intra-particle diffusion models were used to describe the kinetic data. The experimental data fitted the pseudo-second order kinetic model and intra-particle diffusion model. Removal efficiency of lead(II, cadmium(II and zinc(II ions rapidly increased with increasing biosorbent dose from 0.5 to 8.0 g dm-3. Optimal biosorbent dose was set to 4.0 g dm-3. An increase in the initial metal concentration increases the sorption capacity. The sorption data of investigated metal ions are fitted to Langmuir, Freundlich and Temkin isotherm models. Langmuir model best fitted the equilibrium data (r2 > 0.99. Maximal sorption capacities of LVB for Pb(II, Cd(II and Zn(II at 25.0±0.5°C were 0.130, 0.103 and 0.098 mM g-1, respectively. The desorption experiments showed that the LVB could be reused for six cycles with a minimum loss of the initial sorption capacity.

  9. Multi-metals column adsorption of lead(II), cadmium(II) and manganese(II) onto natural bentonite clay.

    Science.gov (United States)

    Alexander, Jock Asanja; Surajudeen, Abdulsalam; Aliyu, El-Nafaty Usman; Omeiza, Aroke Umar; Zaini, Muhammad Abbas Ahmad

    2017-10-01

    The present work was aimed at evaluating the multi-metals column adsorption of lead(II), cadmium(II) and manganese(II) ions onto natural bentonite. The bentonite clay adsorbent was characterized for physical and chemical properties using X-ray diffraction, X-ray fluorescence, Brunauer-Emmett-Teller surface area and cation exchange capacity. The column performance was evaluated using adsorbent bed height of 5.0 cm, with varying influent concentrations (10 mg/L and 50 mg/L) and flow rates (1.4 mL/min and 2.4 mL/min). The result shows that the breakthrough time for all metal ions ranged from 50 to 480 minutes. The maximum adsorption capacity was obtained at initial concentration of 10 mg/L and flow rate of 1.4 mL/min, with 2.22 mg/g of lead(II), 1.71 mg/g of cadmium(II) and 0.37 mg/g of manganese(II). The order of metal ions removal by natural bentonite is lead(II) > cadmium(II) > manganese(II). The sorption performance and the dynamic behaviour of the column were predicted using Adams-Bohart, Thomas, and Yoon-Nelson models. The linear regression analysis demonstrated that the Thomas and Yoon-Nelson models fitted well with the column adsorption data for all metal ions. The natural bentonite was effective for the treatment of wastewater laden with multi-metals, and the process parameters obtained from this work can be used at the industrial scale.

  10. Unsaturated b-ketoesters and their Ni(II, Cu(II and Zn(II complexes

    Directory of Open Access Journals (Sweden)

    MUHAMMED BASHEER UMMATHUR

    2009-03-01

    Full Text Available A new series of b-ketoesters in which the keto group is attached to the olefinic linkage were synthesized by the reaction of methyl acetoacetate and aromatic aldehydes under specified conditions. The existence of these compounds predominantly in the intramolecularly hydrogen bonded enol form was well demonstrated from their IR, 1H-NMR and mass spectral data. Details on the formation of their [ML2] complexes with Ni(II, Cu(II and Zn(II and the nature of the bonding are discussed on the basis of analytical and spectral data.

  11. Adsorption of Cu(II), Hg(II), and Ni(II) ions by modified natural wool chelating fibers

    Energy Technology Data Exchange (ETDEWEB)

    Monier, M., E-mail: monierchem@yahoo.com [Chemistry Department, Drexel University, Philadelphia, PA (United States); Chemistry Department, Faculty of Science, Mansoura University, Mansoura (Egypt); Ayad, D.M.; Sarhan, A.A. [Chemistry Department, Faculty of Science, Mansoura University, Mansoura (Egypt)

    2010-04-15

    The graft copolymerization of ethyl acrylate (EA) onto natural wool fibers initiated by potassium persulphate and Mohr's salt redox initiator system in limited aqueous medium was carried out in heterogeneous media. Ester groups of the grafted copolymers were partially converted into hydrazide function groups followed by hydrazone formation through reaction with isatin. Also the application of the modified fibers for metal ion uptake was studied using Cu(II), Hg(II) and Ni(II). The modified chelating fibers were characterized using FTIR spectroscopy, SEM and X-ray diffraction.

  12. Adsorption of Cu(II), Hg(II), and Ni(II) ions by modified natural wool chelating fibers.

    Science.gov (United States)

    Monier, M; Ayad, D M; Sarhan, A A

    2010-04-15

    The graft copolymerization of ethyl acrylate (EA) onto natural wool fibers initiated by potassium persulphate and Mohr's salt redox initiator system in limited aqueous medium was carried out in heterogeneous media. Ester groups of the grafted copolymers were partially converted into hydrazide function groups followed by hydrazone formation through reaction with isatin. Also the application of the modified fibers for metal ion uptake was studied using Cu(II), Hg(II) and Ni(II). The modified chelating fibers were characterized using FTIR spectroscopy, SEM and X-ray diffraction. 2009 Elsevier B.V. All rights reserved.

  13. Adsorption of Cu(II), Hg(II), and Ni(II) ions by modified natural wool chelating fibers

    International Nuclear Information System (INIS)

    Monier, M.; Ayad, D.M.; Sarhan, A.A.

    2010-01-01

    The graft copolymerization of ethyl acrylate (EA) onto natural wool fibers initiated by potassium persulphate and Mohr's salt redox initiator system in limited aqueous medium was carried out in heterogeneous media. Ester groups of the grafted copolymers were partially converted into hydrazide function groups followed by hydrazone formation through reaction with isatin. Also the application of the modified fibers for metal ion uptake was studied using Cu(II), Hg(II) and Ni(II). The modified chelating fibers were characterized using FTIR spectroscopy, SEM and X-ray diffraction.

  14. Determination of activities of human carbonic anhydrase II inhibitors ...

    African Journals Online (AJOL)

    Purpose: To evaluate the activities of new curcumin analogs as carbonic anhydrase II (CA-II) inhibitor. Methods: Carbonic anhydrase II (CA-II) inhibition was determined by each ligand capability to inhibit the esterase activity of CA-II using 4-NPA as a substrate in 96-well plates. Dimethyl sulfoxide was used to dissolve each ...

  15. Solid-phase extraction of Mn(II), Co(II), Ni(II), Cu(II), Cd(II) and Pb(II) ions from environmental samples by flame atomic absorption spectrometry (FAAS)

    Energy Technology Data Exchange (ETDEWEB)

    Duran, Celal [Department of Chemistry, Faculty of Art and Science, Karadeniz Technical University, 61080 Trabzon (Turkey); Gundogdu, Ali [Department of Chemistry, Faculty of Art and Science, Karadeniz Technical University, 61080 Trabzon (Turkey); Bulut, Volkan Numan [Department of Chemistry, Giresun Faculty of Art and Science, Karadeniz Technical University, 28049 Giresun (Turkey); Soylak, Mustafa [Department of Chemistry, Faculty of Art and Science, Erciyes University, 38039 Kayseri (Turkey)]. E-mail: soylak@erciyes.edu.tr; Elci, Latif [Department of Chemistry, Faculty of Art and Science, Pamukkale University, 20020 Denizli (Turkey); Sentuerk, Hasan Basri [Department of Chemistry, Faculty of Art and Science, Karadeniz Technical University, 61080 Trabzon (Turkey); Tuefekci, Mehmet [Department of Chemistry, Faculty of Art and Science, Karadeniz Technical University, 61080 Trabzon (Turkey)

    2007-07-19

    A new method using a column packed with Amberlite XAD-2010 resin as a solid-phase extractant has been developed for the multi-element preconcentration of Mn(II), Co(II), Ni(II), Cu(II), Cd(II), and Pb(II) ions based on their complex formation with the sodium diethyldithiocarbamate (Na-DDTC) prior to flame atomic absorption spectrometric (FAAS) determinations. Metal complexes sorbed on the resin were eluted by 1 mol L{sup -1} HNO{sub 3} in acetone. Effects of the analytical conditions over the preconcentration yields of the metal ions, such as pH, quantity of Na-DDTC, eluent type, sample volume and flow rate, foreign ions etc. have been investigated. The limits of detection (LOD) of the analytes were found in the range 0.08-0.26 {mu}g L{sup -1}. The method was validated by analyzing three certified reference materials. The method has been applied for the determination of trace elements in some environmental samples.

  16. TFOS DEWS II pathophysiology report.

    Science.gov (United States)

    Bron, Anthony J; de Paiva, Cintia S; Chauhan, Sunil K; Bonini, Stefano; Gabison, Eric E; Jain, Sandeep; Knop, Erich; Markoulli, Maria; Ogawa, Yoko; Perez, Victor; Uchino, Yuichi; Yokoi, Norihiko; Zoukhri, Driss; Sullivan, David A

    2017-07-01

    The TFOS DEWS II Pathophysiology Subcommittee reviewed the mechanisms involved in the initiation and perpetuation of dry eye disease. Its central mechanism is evaporative water loss leading to hyperosmolar tissue damage. Research in human disease and in animal models has shown that this, either directly or by inducing inflammation, causes a loss of both epithelial and goblet cells. The consequent decrease in surface wettability leads to early tear film breakup and amplifies hyperosmolarity via a Vicious Circle. Pain in dry eye is caused by tear hyperosmolarity, loss of lubrication, inflammatory mediators and neurosensory factors, while visual symptoms arise from tear and ocular surface irregularity. Increased friction targets damage to the lids and ocular surface, resulting in characteristic punctate epithelial keratitis, superior limbic keratoconjunctivitis, filamentary keratitis, lid parallel conjunctival folds, and lid wiper epitheliopathy. Hybrid dry eye disease, with features of both aqueous deficiency and increased evaporation, is common and efforts should be made to determine the relative contribution of each form to the total picture. To this end, practical methods are needed to measure tear evaporation in the clinic, and similarly, methods are needed to measure osmolarity at the tissue level across the ocular surface, to better determine the severity of dry eye. Areas for future research include the role of genetic mechanisms in non-Sjögren syndrome dry eye, the targeting of the terminal duct in meibomian gland disease and the influence of gaze dynamics and the closed eye state on tear stability and ocular surface inflammation. Copyright © 2017 Elsevier Inc. All rights reserved.

  17. HERBICIDAS INIBIDORES DO FOTOSSISTEMA II – PARTE II / PHOTOSYSTEM II INHIBITOR HERBICIDES - PART

    Directory of Open Access Journals (Sweden)

    ILCA P. DE F. E SILVA

    2013-11-01

    Full Text Available Os herbicidas inibidores do fotossistema II (PSII ligam-se ao sítio da QB localizado na proteína D1 o qual se localiza na membrana dos tilacóides dos cloroplastos, causando, o bloqueia do transporte de elétrons da QA para QB, tendo como consequência, a peroxidação dos lipídios. Os principais fatores que afetam a evolução da resistência de plantas daninhas aos herbicidas têm sido agrupados em: genéticos, bioecológicos e agronômicos. A resistência de plantas daninhas a herbicidas é definida como a habilidade de uma planta sobreviver e reproduzir, após exposição a uma dose de herbicida normalmente letal para um biótipo normal da planta. A seletividade de um herbicida está relacionada à capacidade de eliminar plantas daninhas sem interferir na qualidade da planta de interesse econômico.

  18. IGF-II receptors and IGF-II-stimulated glucose transport in human fat cells

    International Nuclear Information System (INIS)

    Sinha, M.K.; Buchanan, C.; Raineri-Maldonado, C.; Khazanie, P.; Atkinson, S.; DiMarchi, R.; Caro, J.F.

    1990-01-01

    Insulin-like growth factor II (IGF-II) receptors have been described in rat but not in human adipocytes. In both species, IGF-II has been reported to stimulate glucose transport by interacting with the insulin receptor. In this study, we have unequivocally demonstrated the presence of IGF-II receptors in human adipocytes. 125I-labeled IGF-II specifically binds to intact adipocytes, membranes, and lectin-purified detergent solubilized extracts. Through the use of 0.5 mM disuccinimidyl suberate, 125I-IGF-II is cross-linked to a 260-kDa protein that is identified as the IGF-II receptor by displacement experiments with unlabeled IGF-II, IGF-I, and insulin and either by immunoprecipitation or by Western blot analysis with mannose 6-phosphate receptor antibodies. The concentrations of IGF-II required for half-maximal and maximal stimulation of glucose transport in human adipocytes are 35 and 100 times more than that of insulin. The possibility of IGF-II stimulating glucose transport by interacting predominantly with the insulin receptor is suggested by the following: (1) the concentration of IGF-II that inhibits half of insulin binding is only 20 times more than that of insulin; (2) the lack of an additive effect of IGF-II and insulin for maximal stimulation of glucose transport; (3) the ability of monoclonal insulin receptor antibodies to decrease glucose transport stimulated by submaximal concentrations of both IGF-II and insulin; and (4) the ability of IGF-II to stimulate insulin receptor autophosphorylation albeit at a reduced potency when compared with insulin

  19. Use of APACHE II and SAPS II to predict mortality for hemorrhagic and ischemic stroke patients.

    Science.gov (United States)

    Moon, Byeong Hoo; Park, Sang Kyu; Jang, Dong Kyu; Jang, Kyoung Sool; Kim, Jong Tae; Han, Yong Min

    2015-01-01

    We studied the applicability of the Acute Physiology and Chronic Health Evaluation II (APACHE II) and Simplified Acute Physiology Score II (SAPS II) in patients admitted to the intensive care unit (ICU) with acute stroke and compared the results with the Glasgow Coma Scale (GCS) and National Institutes of Health Stroke Scale (NIHSS). We also conducted a comparative study of accuracy for predicting hemorrhagic and ischemic stroke mortality. Between January 2011 and December 2012, ischemic or hemorrhagic stroke patients admitted to the ICU were included in the study. APACHE II and SAPS II-predicted mortalities were compared using a calibration curve, the Hosmer-Lemeshow goodness-of-fit test, and the receiver operating characteristic (ROC) curve, and the results were compared with the GCS and NIHSS. Overall 498 patients were included in this study. The observed mortality was 26.3%, whereas APACHE II and SAPS II-predicted mortalities were 35.12% and 35.34%, respectively. The mean GCS and NIHSS scores were 9.43 and 21.63, respectively. The calibration curve was close to the line of perfect prediction. The ROC curve showed a slightly better prediction of mortality for APACHE II in hemorrhagic stroke patients and SAPS II in ischemic stroke patients. The GCS and NIHSS were inferior in predicting mortality in both patient groups. Although both the APACHE II and SAPS II systems can be used to measure performance in the neurosurgical ICU setting, the accuracy of APACHE II in hemorrhagic stroke patients and SAPS II in ischemic stroke patients was superior. Copyright © 2014 Elsevier Ltd. All rights reserved.

  20. Forced convection heat transfer in He II

    International Nuclear Information System (INIS)

    Kashani, A.

    1986-01-01

    An investigation of forced convection heat transfer in He II is conducted. The study includes both experimental and theoretical treatments of the problem. The experiment consists of a hydraulic pump and a copper flow tube, 3 mm in ID and 2m long. The system allows measurements of one-dimensional heat and mass transfer in He II. The heat transfer experiments are performed by applying heat at the midpoint along the length of the flow tube. Two modes of heat input are employed, i.e., step function heat input and square pulse heat input. The heat transfer results are discussed in terms of temperature distribution in the tube. The experimental temperature profiles are compared with numerical solutions of an analytical model developed from the He II energy equation. The bath temperature is set at three different values of 1.65, 1.80, and 1.95 K. The He II flow velocity is varied up to 90 cm/s. Pressure is monitored at each end of the flow tube, and the He II pressure drop is obtained for different flow velocities. Results indicate that He II heat transfer by forced convention is considerably higher than that by internal convection. The theoretical model is in close agreement with the experiment. He II pressure drop and friction factor are very similar to those of an ordinary fluid

  1. Role of dust in H II regions

    International Nuclear Information System (INIS)

    Sarazin, C.L.

    1975-01-01

    The purpose of this dissertation is to determine quantitatively the effects of U.V. absorbing dust on H II regions, and compare these effects with observations. Many observations indicate that dust grains are present within H II regions. An analytic theory is presented which describes all three of the effects of dust in H II regions. Although this model is relatively crude, it is useful in determining the approximate size of the modifications due to dust. In order to explore this problem more carefully, detailed numerical models of H II regions with dust were constructed. The ionization and thermal structure of these model H II regions is discussed. The observational consequences of the presence of dust are explored; the optical line intensities, radio continuum and line fluxes, and infrared emission of model H II regions with dust are given. These numerical models are compared with observations of diffuse nebulae. The optical line ratios are compared to several nearby bright H II regions, and it is found that the dust models may explain several anomalies in their spectrum

  2. Oxidation of Fe(II) in rainwater.

    Science.gov (United States)

    Willey, J D; Whitehead, R F; Kieber, R J; Hardison, D R

    2005-04-15

    Photochemically produced Fe(II) is oxidized within hours under environmentally realistic conditions in rainwater. The diurnal variation between photochemical production and reoxidation of Fe(II) observed in our laboratory accurately mimics the behavior of ferrous iron observed in field studies where the highest concentrations of dissolved Fe(ll) occur in afternoon rain during the period of maximum sunlight intensity followed by gradually decreasing concentrations eventually returning to early morning pre-light values. The experimental work presented here, along with the results of kinetics studies done by others, suggests thatthe primary process responsible for the decline in photochemically produced Fe(II) concentrations is oxidation by hydrogen peroxide. This reaction is first order with respect to both the concentrations of Fe(II) and H2O2. The second-order rate constant determined for six different authentic rain samples varied over an order of magnitude and was always less than or equal to the rate constant determined for this reaction in simple acidic solutions. Oxidation of photochemically produced ferrous iron by other oxidants including molecular oxygen, ozone, hydroxyl radical, hydroperoxyl/superoxide radical, and hexavalent chromium were found to be insignificant under the conditions present in rainwater. This study shows that Fe(II) occurs as at least two different chemical species in rain; photochemically produced Fe(II) that is oxidized over time periods of hours, and a background Fe(II) that is protected against oxidation, perhaps by organic complexation, and is stable against oxidation for days. Because the rate of oxidation of photochemically produced Fe(II) does not increase with increasing rainwater pH, the speciation of this more labile form of Fe(II) is also not controlled by simple hydrolysis reactions.

  3. Status Report on PEP-II Performance

    International Nuclear Information System (INIS)

    Matter, Regina S.

    2002-01-01

    PEP-II [1-9] is an e+e- collider with asymmetric energies (3.1 and 9 GeV, respectively) in a 2200 m tunnel at the Stanford Linear Accelerator Center. The collider produces B mesons to study a particle physics effect called CP violation as well as other physics topics. PEP-II was completed in 1998 with the first luminosity generated in July of that year. The installation of the BaBar Detector was finished in May 1999. The overall layout of PEP-II is shown in Figure 1 and the interaction region of PEP-II in Figure 2. The accelerator parameters and achievements of the High Energy Ring (HER) are listed in Table 1 and those for the Low Energy Ring (LER) in Table 2. The two beams collide at a single point in the IR2 hall where the BaBar detector is located. Beam parameters at the best luminosity are shown in Table 3 and PEP-II milestones in Table 4. In August 1999 PEP-II passed the world's record for luminosity which was 8.1x10 32 /cm 2 /s. The present luminosity in PEP-II is 2.15x10 33 /cm 2 /s which is 72% of the design. In June 2000 PEP-II delivered an integrated luminosity of 150 pb -1 in one day, which is above the design integrated luminosity per day of 135 pb -1 . Over the past year PEP-II has delivered over 12 fb -1 to BaBar. BaBar has logged over 11 pb -1 . The present plan is collide until the end of October 2000 followed by a three month installation period

  4. Synthesis and characterization of polychelates of Cu(II), Ni(II), Co(II), Mn(II), Zn(II), oxovanadium(IV) and dioxouranium(VI) with 2,4-dihydroxybenzaldehyde-urea-formaldehyde polymer

    International Nuclear Information System (INIS)

    Patel, G.C.; Pancholi, H.B.; Patel, M.M.

    1991-01-01

    Polychelates of Cu(II), Ni(II), Co(II), Mn(II), Zn(II), oxovandium(IV) and dioxouranium(VI) with 2,4-dihydroxybenzaldehyde (2,4-DB)-urea(U)-formaldehyde(F) polymer (2,4-DBUF) have been prepared. Elemental analyses of the polychelates indicate a metal:ligand ratio of 1:2. The structures of the polychelates have been assigned on the basis of their elemental analyses, IR, reflectance spectra, magnetic moment, thermal data and their electrical conductivity behaviour. (author). 1 tab., 18 refs

  5. Level II Ergonomic Analyses, Dover AFB, DE

    Science.gov (United States)

    1999-02-01

    IERA-RS-BR-TR-1999-0002 UNITED STATES AIR FORCE IERA Level II Ergonomie Analyses, Dover AFB, DE Andrew Marcotte Marilyn Joyce The Joyce...Project (070401881, Washington, DC 20503. 1. AGENCY USE ONLY (Leave blank) 2. REPORT DATE 4. TITLE AND SUBTITLE Level II Ergonomie Analyses, Dover...1.0 INTRODUCTION 1-1 1.1 Purpose Of The Level II Ergonomie Analyses : 1-1 1.2 Approach 1-1 1.2.1 Initial Shop Selection and Administration of the

  6. Overview of the SECOM II communications system

    International Nuclear Information System (INIS)

    Olson, W.D.

    1977-04-01

    The conversion of the SECOM system to the SECOM II configuration has been completed and all communications between the central control station and vehicles carrying nuclear weapons and special nuclear materials are being handled by the SECOM II system. A summary of the system characteristics and the improvements achieved over the all-voice system is shown. Through the combined efforts of ALO and Sandia personnel, the transition from SECOM to SECOM II was achieved with a minimum disruption to the operation of the ERDA transportation system

  7. Angiotensin II and Renal Tubular Ion Transport

    Directory of Open Access Journals (Sweden)

    Patricia Valles

    2005-01-01

    Evidence for the regulation of H+-ATPase activity in vivo and in vitro by trafficking/exocytosis has been provided. An additional level of H+-ATPase regulation via protein synthesis may be important as well. Recently, we have shown that both aldosterone and angiotensin II provide such a mechanism of regulation in vivo at the level of the medullary collecting tubule. Interestingly, in this part of the nephron, the effects of aldosterone and angiotensin II are not sodium dependent, whereas in the cortical collecting duct, both aldosterone and angiotensin II, by contrast, affect H+ secretion by sodium-dependent mechanisms.

  8. International cooperation at RTNS-II

    International Nuclear Information System (INIS)

    Logan, C.M.

    1984-02-01

    The Rotating Target Neutron Source-II (RTNS-II) facility at LLNL is a unique materials-test facility. It provides the most intense source of 14-MeV neutrons in the world. Dedicated operation in support of the fusion-materials-research community began in early 1979. Three years later, the Japanese Ministry of Education, Science, and Culture (Monbusho) and the US Department of Energy agreed to jointly support the RTNS-II operation and to share in the use of the facility

  9. LHC II system sensitivity to magnetic fluids

    CERN Document Server

    Cotae, Vlad

    2005-01-01

    Experiments have been designed to reveal the influences of ferrofluid treatment and static magnetic field exposure on the photosynthetic system II, where the light harvesting complex (LHC II) controls the ratio chlorophyll a/ chlorophyll b (revealing, indirectly, the photosynthesis rate). Spectrophotometric measurement of chlorophyll content revealed different influences for relatively low ferrofluid concentrations (10-30 mul/l) in comparison to higher concentrations (70-100 mul/l). The overlapped effect of the static magnetic field shaped better the stimulatory ferrofluid action on LHC II system in young poppy plantlets.

  10. Phase II clinical development of new drugs

    CERN Document Server

    Ting, Naitee; Ho, Shuyen; Cappelleri, Joseph C

    2017-01-01

    This book focuses on how to appropriately plan and develop a Phase II program, and how to design Phase II clinical trials and analyze their data. It provides a comprehensive overview of the entire drug development process and highlights key questions that need to be addressed for the successful execution of Phase II, so as to increase its success in Phase III and for drug approval. Lastly it warns project team members of the common potential pitfalls and offers tips on how to avoid them.

  11. Comparative analysis of Carnaval II Library

    International Nuclear Information System (INIS)

    Santos Bastos, W. dos

    1981-01-01

    The Carnaval II cross sections library from the french fast reactor calculation system is evaluated in two ways: 1 0 ) a comparative analysis of the calculations system for fast reactors at IEN (Instituto de Engenharia Nuclear) using a 'benchmark' model is done; 2 0 ) a comparative analysis in relation to the french system itself is also done, using calculations realized with two versions of the french library: the SETR-II and the CARNAVAL IV, the first one being anterior and the second one posterior to the Carnaval II version, the one used by IEN. (Author) [pt

  12. Synthesis, spectral characterization thermal stability, antimicrobial studies and biodegradation of starch–thiourea based biodegradable polymeric ligand and its coordination complexes with [Mn(II, Co(II, Ni(II, Cu(II, and Zn(II] metals

    Directory of Open Access Journals (Sweden)

    Nahid Nishat

    2016-09-01

    Full Text Available A biodegradable polymer was synthesized by the modification reaction of polymeric starch with thiourea which is further modified by transition metals, Mn(II, Co(II, Ni(II, Cu(II and Zn(II. All the polymeric compounds were characterized by (FT-IR spectroscopy, 1H NMR spectroscopy, 13C NMR spectroscopy, UV–visible spectra, magnetic moment measurements, thermogravimetric analysis (TGA and antibacterial activities. Polymer complexes of Mn(II, Co(II and Ni(II show octahedral geometry, while polymer complexes of Cu(II and Zn(II show square planar and tetrahedral geometry, respectively. The TGA revealed that all the polymer metal complexes are more thermally stable than their parental ligand. In addition, biodegradable studies of all the polymeric compounds were also carried out through ASTM-D-5338-93 standards of biodegradable polymers by CO2 evolution method which says that coordination decreases biodegradability. The antibacterial activity was screened with the agar well diffusion method against some selected microorganisms. Among all the complexes, the antibacterial activity of the Cu(II polymer–metal complex showed the highest zone of inhibition because of its higher stability constant.

  13. Synthesis and studies on Cu(II), Co(II), Ni(II) complexes of Knoevenagel β-diketone ligands

    Science.gov (United States)

    Sumathi, S.; Tharmaraj, P.; Sheela, C. D.; Anitha, C.

    2012-11-01

    Transition metal complexes of various acetylacetone based ligands of the type ML [where M = Cu(II), Ni(II), Co(II); L = 3-(aryl)-pentane-2,4-dione] have been synthesized. The structural features have been derived from their elemental analysis, magnetic susceptibility, molar conductance, IR, UV-Vis, 1H NMR, Mass and ESR spectral studies. Conductivity measurements reveal that all the complexes are non-electrolytic in nature. Spectroscopic and other analytical data of the complexes suggest octahedral geometry for other metal(II) complexes. The redox behavior of the copper(II) complexes have been studied by cyclic voltammetry. The free ligands and their metal complexes have been screened for their in vitro biological activities against the bacteria Pseudomonas aeruginosa, Escherichia coli and Staphylococcus aureus as well as the fungus Candida albicans by well diffusion method. The zone of inhibition value indicates that the most of the metal(II) complexes are found to possess increased activities compared to those of the free ligands. All synthesized compounds may serve as potential photoactive materials as indicated from their characteristic fluorescence properties. The second harmonic generation (SHG) efficiency of the ligands (L1-L3) was found to be considerable effect than that of urea and KDP (potassium dihydrogen phosphate).

  14. Pecan nutshell as biosorbent to remove Cu(II), Mn(II) and Pb(II) from aqueous solutions.

    Science.gov (United States)

    Vaghetti, Julio C P; Lima, Eder C; Royer, Betina; da Cunha, Bruna M; Cardoso, Natali F; Brasil, Jorge L; Dias, Silvio L P

    2009-02-15

    In the present study we reported for the first time the feasibility of pecan nutshell (PNS, Carya illinoensis) as an alternative biosorbent to remove Cu(II), Mn(II) and Pb(II) metallic ions from aqueous solutions. The ability of PNS to remove the metallic ions was investigated by using batch biosorption procedure. The effects such as, pH, biosorbent dosage on the adsorption capacities of PNS were studied. Four kinetic models were tested, being the adsorption kinetics better fitted to fractionary-order kinetic model. Besides that, the kinetic data were also fitted to intra-particle diffusion model, presenting three linear regions, indicating that the kinetics of adsorption should follow multiple sorption rates. The equilibrium data were fitted to Langmuir, Freundlich, Sips and Redlich-Peterson isotherm models. Taking into account a statistical error function, the data were best fitted to Sips isotherm model. The maximum biosorption capacities of PNS were 1.35, 1.78 and 0.946mmolg(-1) for Cu(II), Mn(II) and Pb(II), respectively.

  15. HPC Benchmark Suite NMx, Phase II

    Data.gov (United States)

    National Aeronautics and Space Administration — In the phase II effort, Intelligent Automation Inc., (IAI) and University of Central Florida (UCF) propose to develop a comprehensive numerical test suite for...

  16. NNDSS - Table II. Babesiosis to Campylobacteriosis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Babesiosis to Campylobacteriosis - 2018. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the...

  17. NNDSS - Table II. Cryptosporidiosis to Dengue

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Cryptosporidiosis to Dengue - 2015.In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding...

  18. NNDSS - Table II. Cryptosporidiosis to Dengue

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Cryptosporidiosis to Dengue - 2016. In this Table, provisional* cases of selected† notifiable diseases (≥1,000 cases reported during the preceding...

  19. NNDSS - Table II. Shiga toxin to Shigellosis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Shiga toxin to Shigellosis - 2015. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding...

  20. NNDSS - Table II. West Nile virus disease

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. West Nile virus disease - 2015.In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding year),...

  1. Murine Automated Urine Sampler (MAUS), Phase II

    Data.gov (United States)

    National Aeronautics and Space Administration — This SBIR Phase II effort involves the development of a novel rodent spaceflight habitat, focusing on care and monitoring of mice for gravitational physiology...

  2. It's Time to Rethink JPME II

    National Research Council Canada - National Science Library

    Feyedelem, Christopher

    2004-01-01

    .... Subsequent legislation created a two-phased approach to intermediate and senior level Joint Professional Military Education with Phase II being taught at the Joint Forces Staff College in Norfolk, Virginia...

  3. Training experience at Experimental Breeder Reactor II

    International Nuclear Information System (INIS)

    Driscoll, J.W.; McCormick, R.P.; McCreery, H.I.

    1978-01-01

    The EBR-II Training Group develops, maintains,and oversees training programs and activities associated with the EBR-II Project. The group originally spent all its time on EBR-II plant-operations training, but has gradually spread its work into other areas. These other areas of training now include mechanical maintenance, fuel manufacturing facility, instrumentation and control, fissile fuel handling, and emergency activities. This report describes each of the programs and gives a statistical breakdown of the time spent by the Training Group for each program. The major training programs for the EBR-II Project are presented by multimedia methods at a pace controlled by the student. The Training Group has much experience in the use of audio-visual techniques and equipment, including video-tapes, 35 mm slides, Super 8 and 16 mm film, models, and filmstrips. The effectiveness of these techniques is evaluated in this report

  4. Wavelets: Applications to Image Compression-II

    Indian Academy of Sciences (India)

    Wavelets: Applications to Image Compression-II. Sachin P ... successful application of wavelets in image com- ... b) Soft threshold: In this case, all the coefficients x ..... [8] http://www.jpeg.org} Official site of the Joint Photographic Experts Group.

  5. High Resolution Autostereoscopic Cockpit Display, Phase II

    Data.gov (United States)

    National Aeronautics and Space Administration — During this Phase II program Dimension Technologies Inc. (DTI) proposes to design and build an autostereoscopic (glasses-free 3D) LCD based aircraft cockpit display...

  6. The world's reactors No. 82: Atucha II

    International Nuclear Information System (INIS)

    Anon.

    1982-01-01

    Detailed information on Atucha II, a 745 MWe pressure-vessel PHWR, is presented in the form of a wall chart. Plant specifications and full colour cutaway drawings of the power station are included. (U.K.)

  7. ROSA-II test data report, 6

    International Nuclear Information System (INIS)

    1976-12-01

    Results of the ROSA-II test simulating a loss-of-coolant accident in a light water reactor (LWR) are presented, including the test conditions and interpretation of the phenomena for test runs 411, 314, 315 and 316. (auth.)

  8. Time-dependent, Bianchi II, rotating universe

    International Nuclear Information System (INIS)

    Reboucas, M.J.

    1981-01-01

    An exact cosmological solution of Einstein's equations which has time-dependent rotation is presented. The t-constant sections are of Bianchi type II. The source of this geometry is a fluid which has not been thermalized. (Author) [pt

  9. Pavement performance evaluation, phase II : data collection.

    Science.gov (United States)

    2008-12-01

    Phase I and II of this study tested approximately 1500 rehabilitated pavements (asphalt and PCC) : throughout the State. These pavements ranged from 5 to 15 years old and were intended to develop a : snapshot of how various rehabilitations were perfo...

  10. Manganese(II) chelate contrast media

    International Nuclear Information System (INIS)

    Rocklage, S.M.; Quay, S.C.

    1994-01-01

    New chelate forming compounds for use as contrast media in NMR imaging are described. Especially mentioned are manganese(II) ion chelates of N,N' dipyridoxaldiamine, N,N' diacetic acid, and salts and esters thereof. 1 fig

  11. NNDSS - Table II. Mumps to Rabies, animal

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Mumps to Rabies, animal - 2014.In this Table, all conditions with a 5-year average annual national total of more than or equals 1,000 cases but...

  12. NNDSS - Table II. Mumps to Rabies, animal

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Mumps to Rabies, animal - 2015.In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding year),...

  13. NNDSS - Table II. Mumps to Rabies, animal

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Mumps to Rabies, animal - 2016. In this Table, provisional* cases of selected† notifiable diseases (≥1,000 cases reported during the preceding...

  14. NNDSS - Table II. Legionellosis to Malaria

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Legionellosis to Malaria - 2017. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding...

  15. NNDSS - Table II. Hepatitis (viral, acute) C

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Hepatitis (viral, acute) C - 2017. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding...

  16. NNDSS - Table II. Babesiosis to Campylobacteriosis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Babesiosis to Campylobacteriosis - 2017. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the...

  17. NNDSS - Table II. West Nile virus disease

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. West Nile virus disease - 2017. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding year),...

  18. NNDSS - Table II. Giardiasis to Haemophilus influenza

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Giardiasis to Haemophilus influenza - 2017. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the...

  19. NNDSS - Table II. Meningococcal to Pertussis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Meningococcal to Pertussis - 2017. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding...

  20. NNDSS - Table II. Ehrlichiosis and Anaplasmosis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Ehrlichiosis and Anaplasmosis - 2017. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding...

  1. NNDSS - Table II. Cryptosporidiosis to Dengue

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Cryptosporidiosis to Dengue - 2017. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding...

  2. NNDSS - Table II. Tetanus to Varicella

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Tetanus to Varicella - 2017. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding year),...

  3. NNDSS - Table II. Chlamydia to Coccidioidomycosis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Chlamydia to Coccidioidomycosis - 2017. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the...

  4. NNDSS - Table II. Salmonellosis to Shigellosis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Salmonellosis to Shigellosis - 2017. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding...

  5. NNDSS - Table II. West Nile to Zika

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. West Nile to Zika - 2018. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding year), and...

  6. Genetics Home Reference: mucopolysaccharidosis type II

    Science.gov (United States)

    ... but they typically live into adulthood and their intelligence is not affected. Heart disease and airway obstruction are major causes of death in people with both types of MPS II. Related Information What does it ...

  7. NNDSS - Table II. Babesiosis to Coccidioidomycosis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Babesiosis to Coccidioidomycosis - 2014.In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the...

  8. Titanium Heat Pipe Thermal Plane, Phase II

    Data.gov (United States)

    National Aeronautics and Space Administration — The objective of the Phase II program is to complete the development of the titanium heat pipe thermal plane and establish all necessary steps for production of this...

  9. Oxygen-Methane Thruster, Phase II

    Data.gov (United States)

    National Aeronautics and Space Administration — Two main innovations will be developed in the Phase II effort that are fundamentally associated with our gaseous oxygen/gaseous methane RCS thruster. The first...

  10. Innovation in the Sky, Phase II

    Data.gov (United States)

    National Aeronautics and Space Administration — This Phase II proposal presents a scope of work to develop reliable Sense and Avoid for BVLOS Unmanned Aerial Vehicle [UAV] operations. We first analyze a) the...

  11. THE LIMITS OF BASEL II ACCORD

    OpenAIRE

    Zapodeanu Daniela; Gall Raluca Dorina

    2009-01-01

    Even though the actual Basel II Settlement has many advantages like: more transparent and detailed bank information, the rating systems, the internal models of evaluation for risks, the three pillars which represent a whole, an equitable bank competition,

  12. NNDSS - Table II. Giardiasis to Haemophilus influenza

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Giardiasis to Haemophilus influenza - 2014. In this Table, all conditions with a 5-year average annual national total of more than or equals 1,000...

  13. NNDSS - Table II. Giardiasis to Haemophilus influenza

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Giardiasis to Haemophilus influenza - 2018. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the...

  14. NNDSS - Table II. Giardiasis to Haemophilus influenza

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Giardiasis to Haemophilus influenza - 2015.In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the...

  15. NNDSS - Table II. Giardiasis to Haemophilus influenza

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Giardiasis to Haemophilus influenza - 2016. In this Table, provisional* cases of selected† notifiable diseases (≥1,000 cases reported during the...

  16. NNDSS - Table II. Hepatitis (viral, acute)

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Hepatitis (viral, acute) - 2015.In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding year),...

  17. NNDSS - Table II. Hepatitis (viral, acute)

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Hepatitis (viral, acute) - 2016. In this Table, provisional* cases of selected† notifiable diseases (≥1,000 cases reported during the preceding...

  18. NNDSS - Table II. Hepatitis (viral, acute)

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Hepatitis (viral, acute) - 2014.In this Table, all conditions with a 5-year average annual national total of more than or equals 1,000 cases but...

  19. NNDSS - Table II. Meningococcal disease to Pertussis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Meningococcal disease to Pertussis - 2018. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the...

  20. NNDSS - Table II. Chlamydia to Coccidioidomycosis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Chlamydia to Coccidioidomycosis - 2016. In this Table, provisional* cases of selected† notifiable diseases (≥1,000 cases reported during the...

  1. NNDSS - Table II. Tetanus to Varicella

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Tetanus to Varicella - 2018. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding year),...

  2. Crew Cerebral Oxygen Monitor, Phase II

    Data.gov (United States)

    National Aeronautics and Space Administration — This Phase II SBIR proposal is aimed at developing a non-invasive, optical method for monitoring crew member state of awareness in operational environments. All...

  3. Transport with Astra in TJ-II

    International Nuclear Information System (INIS)

    Lopez-Bruna, D.; Castejon, F.; Fontdecaba, J. M.

    2004-01-01

    This report describes the adaptation of the numerical transport shell ASTRA for performing plasma calculations in the TJ-II stellarator device. Firstly, an approximation to the TJ-II geometry is made and a simple transport model is shared with two other codes in order to compare these codes (PROCTR, PRETOR-Stellarator) with ASTRA as calculation tool for TJ-II plasmas are provided: interpretative and predictive transport. The first consists in estimating the transport coefficients from real experimental data, thes being taken from three TJ-II discharges. The predictive facet is illustrated using a model that is able to includes self-consistently the dynamics of transport barriers. The report includes this model, written in the ASTRA programming language, to illustrate the use of ASTRA. (Author) 26 refs

  4. NNDSS - Table II. Invasive Pneumococcal to Legionellosis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Invasive Pneumococcal to Legionellosis - 2014.In this Table, all conditions with a 5-year average annual national total of more than or equals...

  5. NNDSS - Table II. Legionellosis to Malaria

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Legionellosis to Malaria - 2018. In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding...

  6. NNDSS - Table II. Lyme disease to Meningococcal

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Lyme disease to Meningococcal - 2015.In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding...

  7. NNDSS - Table II. Lyme disease to Meningococcal

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Lyme disease to Meningococcal - 2014In this Table, all conditions with a 5-year average annual national total of more than or equals 1,000 cases...

  8. NNDSS - Table II. Lyme disease to Meningococcal

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Lyme disease to Meningococcal - 2016. In this Table, provisional* cases of selected† notifiable diseases (≥1,000 cases reported during the...

  9. Silver Biocide Analysis & Control Device, Phase II

    Data.gov (United States)

    National Aeronautics and Space Administration — Rapid, accurate measurement and process control of silver ion biocide concentrations in future space missions is needed. The purpose of the Phase II program is to...

  10. NNDSS - Table II. Salmonellosis to Shigellosis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Salmonellosis to Shigellosis - 2014.In this Table, all conditions with a 5-year average annual national total of more than or equals 1,000 cases...

  11. NNDSS - Table II. West Nile virus disease

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. West Nile virus disease - 2016. In this Table, provisional* cases of selected† notifiable diseases (≥1,000 cases reported during the preceding...

  12. TRUPACT-II container maintenance program plan

    International Nuclear Information System (INIS)

    1990-01-01

    This document details the maintenance/repair and replacement of components, as well as the documentation required and the procedures to be followed to maintain the integrity of the TRUPACT-II container

  13. NNDSS - Table II. Rubella to Salmonellosis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Rubella to Salmonellosis - 2016. In this Table, provisional* cases of selected† notifiable diseases (≥1,000 cases reported during the preceding...

  14. TJ-II Library Manual (Version 2)

    International Nuclear Information System (INIS)

    Tribaldos, V.; Milligen, B. Ph. van; Lopez-Fraguas, A.

    2001-01-01

    This is a manual of use of the TJ2 Numerical Library that has been developed for making numerical computations of different TJ-II configurations. This manual is a new version of the earlier manual CIEMAT report 806. (Author)

  15. Aleksi II kritikujet "Kod da Vintshi"

    Index Scriptorium Estoniae

    2006-01-01

    Dan Browni samanimelise romaani järgi valminud põnevusfilm "Da Vinci kood" : režissöör Ron Howard : Ameerika Ühendriigid 2006. Venemaa patriarh Aleksius II nimetas filmi linastamist lugupidamatuseks moraalinormide vastu

  16. Overviews of EMRAS I and II

    International Nuclear Information System (INIS)

    Kawaguchi, Isao

    2011-01-01

    Recently there has been attracting growing interest in impacts of irradiation to wildlife organisms. In IAEA, biota dosimetry working group (BWG) was established in Environmental Modeling for Radiation Safety (EMRAS) program, which aimed to intercompare biota dose assessment models to validate their assumptions and estimations. After EMRAS program finished, new program which is referred as EMRAS II was set on January 2009. In EMRAS II, there are three themes, and 9 working groups were established. One of three themes is related to environmental protection, and three working groups (Biota modeling, wildlife transfer coefficient handbook, biota dose effects modeling) were constituted in it. In this report, activities of EMRAS I BWG and EMRAS II theme II are summarized. (author)

  17. Stability constants of glutarate complexes of copper(II), zinc(II), cobalt(II) and uranyl(II) by paper electrophoresis

    International Nuclear Information System (INIS)

    Singh, R.K.P.; Yadava, J.R.; Yadava, K.L.

    1981-01-01

    Stability constants of Copper(II), Zinc(II), Cobalt(II) and Uranyl(II) glutarates have been determined by paper electrophoresis. Glutaric acid (0.005 mol dmsup(-3)) was added to the background electrolyte : 0.1 mol dmsup(-3) HClO 4 . The proportions of (CH 2 ) 3 COOH COO - and (CH 2 ) 3 C 2 O 4 2- were varied by changing the pH of the electrolyte. These anions yielded the complexes Cu(CH 2 ) 3 C 2 O 4 , [Zn(CH 2 ) 3 COOH COO] + [Co(CH 2 ) 3 COOH COO] + and UO 2 (CH 2 ) 3 C 2 O 4 whose stability constants are found to be 10sup(3.9), 10sup(2.9), 10sup(2.7) and 10sup(13.5) respectively. (author)

  18. NNDSS - Table II. Ehrlichiosis/Anaplasmosis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Ehrlichiosis/Anaplasmosis - 2015.In this Table, provisional cases of selected notifiable diseases (≥1,000 cases reported during the preceding...

  19. NNDSS - Table II. Tetanus to Vibriosis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Tetanus to Vibriosis - 2016. In this Table, provisional* cases of selected† notifiable diseases (≥1,000 cases reported during the preceding year),...

  20. NNDSS - Table II. Shiga toxin to Shigellosis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table II. Shiga toxin to Shigellosis - 2016. In this Table, provisional* cases of selected† notifiable diseases (≥1,000 cases reported during the preceding...