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Sample records for cal zeolita sobre

  1. Efecto de la adición mineral cal- zeolita sobre la resistencia a la compresión y la durabilidad de un hormigón Effect of lime- zeolite binder on compression strength and durability properties of a concrete

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    Juan José Dopico Montes de Oca

    2009-08-01

    Full Text Available La práctica internacional reporta una creciente utilización de los hormigones de altas resistencias, con excelentes resultados en la durabilidad, relacionado con la obtención de una matriz cementicia muy densa, a partir del empleo de altos volúmenes de adiciones minerales muy finas, tales como las cenizas volantes, la microsílice, el metacaolín y otros materiales. Para los países emergentes, entre los cuales se ubica Cuba, el uso de estas adiciones puzolánicas resultan una solución relativamente costosa, dado los altos precios de importación de estos materiales puzolánicos, de ahí la utilidad de usar las fuentes nacionales de puzolanas disponibles de probada reactividad, como sustituías parciales de los contenidos de Cemento Portland Ordinario (CPO en las mezclas de hormigón, sin que se vean afectadas significativamente sus propiedades. El presente trabajo muestra la influencia del nivel de sustitución de los contenidos de Cemento Portland por adición mineral cal- puzolana, en combinación con superplastificante, en el comportamiento de la resistencia a la compresión y la durabilidad de un hormigón. Varios niveles de sustitución de CPO son evaluados, utilizando toba zeolítica como puzolana. Los resultados obtenidos corroboran la posibilidad del reemplazo de altos volúmenes de CPO por aglomerante cal-zeolita, sin que se afecten la resistencia a compresión requerida y su comportamiento ante la acción del ingreso del ion cloruro y la carbonatación.The international construction practice reports a remarkable use and development of high performance concretes, with excellent results in the durability properties, associated with a very dense cement matrix, defined from the use of high volumes of very fine minerals additions, such as, fly ash, silica fume, metakaolin and other fine powders. For the developing countries, among others Cuba, the use of these pozzolanic additions are relatively expensive, given for the high import

  2. Cálculo por dinámica y mecánica molecular de sitios y calores de adsorción de Dipentenos sobre Zeolita Y

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    Cristian Blanco

    2011-06-01

    Full Text Available Hemos utilizado métodos de la mecánica molecular para estudiar la adsorción de R-limoneno, p-ment-1-eno, p-ment-8-eno y p-mentano sobre faujasita silícea y sobre zeolitas Y con relación Si/Al = 2 que contenían diferentes cationes en el sitio SII (Nal+, Fe2+, FeH y MnH. Los cálculos mostraron que la presencia de dobles enlaces en la molécula que se adsorbe y el tipo de catión en SIl determinan la estabilidad del complejo adsorbatozeolita. Las interacciones entre el huésped y la molécula adsorbida estuvieron dominadas por las contribuciones electrostáticas, las cuales aumentaron con la carga del catión en SII. La orientación de las moléculas insaturadas en la supercaja fue resultado del balance entre el aumento de repulsiones estéricas entre zeolita y molécula adsorbida y el aumento de atracciones electrostáticas como resultado de la minimización de dos grupos de distancias: las distancias entre el catión en SII y los carbonos Sp2 de la molécula adsorbida y las distancias entre los oxígenos estructurales de la zeolita y los hidrógenos de la molécula adsorbida.

  3. Estudio sobre la incorporación y retención de plomo en zeolita natural

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    Abraham Mendoza Córdoba

    2014-12-01

    Full Text Available Las zeolitas son un grupo de minerales que corresponden a la clase de los silicatos (tectosilicatos, entre las diversas utilidades que tienen estos minerales está la resolución de problemas ambientales, particularmente en la eliminación de contaminantes, entre estos se encuentran los metales pesados, los cuales están presentes en los suelos de zonas industriales, en el agua potable, en los afluentes de aguas procedentes de la industria y de la actividad minera, o bien procedentes de mantos acuíferos. Su utilidad se debe en parte por tener una gran capacidad de intercambio iónico, así como también por tener una estructura con cavidades de dimensiones nanométricas, eso le da la capacidad de incorporar elementos ajenos al mineral dentro de dichas cavidades. En el presente trabajo se ha experimentado con Pb incorporándolo en zeolitas (chabazita como acetato de plomo (Pb(CH3COO2 3H2O con el fin de conocer, por una parte, la capacidad del mineral para alojar dicho metal después de activarla, y por otra parte, conocer la capacidad de retención del metal después de un proceso reversible a la incorporación de Pb (activación.

  4. Modelado de curvas de ruptura en la adsorción de agua sobre sílica gel y zeolita 4A

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    Andrés Rivera Guerrero

    2014-01-01

    Full Text Available Este artículo presenta el desarrollo de un modelo computacional para simular la adsorción de agua en un lecho empacado, comparando el desempeño de una zeolita 4A y una sílica gel tipo ‘A’. Se usó una variación de la isoterma de Langmuir para la zeolita 4A y la isoterma de Tóth para la sílica gel; se utilizó el modelo de fuerza motriz lineal (LDF para la velocidad de adsorción, con un coeficiente total dependiente de la temperatura. El modelo está constituido por cinco ecuaciones diferenciales parciales asociadas con las variables: fracción molar de agua, temperatura, presión, velocidad superficial y carga adsorbida de agua. Para resolver el sistema se empleó el método de líneas (MOL con el integrador ODE15S de Matlab ® . Se evaluaron como variables de respuesta el intervalo de tiempo característico de la curva de ruptura, la asimetría, la temperatura máxima y la caída de presión, mediante un esquema factorial de dos niveles. El tipo de adsorbente es la variable que más influencia tiene en las variables de respuesta. A la zeolita corresponde la mayor velocidad de adsorción, comportamiento que puede explicarse si se observa la forma de su isoterma de adsorción, aunque presenta una menor capacidad de retención de agua y mayor resistencia a la transferencia de masa.

  5. ESTUDIO SOBRE LA INFLUENCIA DE LA INCORPORACIÓN DE CATIÓN METÁLICO EN LA ACTIVIDAD CATALÍTICA Y COMPORTAMIENTO MAGNÉTICO DE ZEOLITAS ZSM-5

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    Clara Saux

    2011-01-01

    Full Text Available Se sintetizaron zeolitas ZSM-5 con relación molar Si/Al 17 por el método hidrotérmico, las que fueron modificadas con cobalto y cromo por la técnica de impregnación por vía húmeda en un 3 % p/p del metal. Los resultados obtenidos por DRX, indican que la incorporación de ambos metales de transición no altera la estructura, ni la cristalinidad de la matriz original. Se detecta la presencia de especies Co3O4 para Co-ZSM-5 y Cr2O3 para el caso de Cr-ZSM-5. De las medidas de magnetización a temperatura ambiente se observa el efecto de los metales de transición sobre el comportamiento netamente diamagnético de la matriz zeolítica con la aparición de ciclos de histéresis que no saturan por presentar una componente paramagnética. Ambos materiales fueron probados como catalizadores para la reacción de oxidación selectiva de estireno con peróxido de hidrógeno, presentando buenos resultados en actividad con una elevada selectividad (superior al 70 % hacia benzaldehído.

  6. Influencia del tipo de curado sobre un conglomerante cal-toba-yeso

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    Álvarez Cabrera, J. L.

    1994-09-01

    Full Text Available Mortars with lime-tufa-gipsum binder where studied when submitted to different types of curing. The mortars were prepared with a binder/sand ratio of 1/3 and a/c= 0,7, and they were demoulded after 24 hours. In the tested specimens, variations in values of bending strength, compressive strength and volumetric weight were observed. The best values of mechanical strength were obtained with the specimens submitted to accelerated treatment such as curing in autoclave with saturated vapour, while the smallest values of strength were achieved in the specimens submitted only to weathering.

    Se estudiaron morteros con un conglomerante de cal-toba-yeso, sometidos a diferentes tipos de curado. Los morteros fueron preparados con una relación conglomerante arena de 1/3 y a/c 0,7 desmoldadas a las 24 horas. Se observaron variaciones en los valores de resistencia a la flexión, compresión y peso volumétrico en las probetas ensayadas, y los mejores valores de resistencia mecánica se obtuvieron con aquellas probetas sometidas a tratamientos acelerados, como el curado en autoclave a vapor saturado, mientras que las menores resistencias se produjeron en probetas sometidas sólo a la intemperie.

  7. Síntesis de zeolita LTA sobre soportes de corindón: Evaluación preliminar para la eliminación de metales pesados de efluentes acuosos

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    Jacas, A.

    2012-10-01

    Full Text Available The effectiveness of materials based on LTA Zeolite as active phase, for their incorporation into systems aimed at the removal of heavy metals on waste water is evaluated in a preliminary way. This type of Zeolite with the main channel of a minimum free diameter of 0,41 nm and a low SiO2/Al2O3 ratio is an interesting molecular sieve, which in turn display a high ion exchange capacity. From this point of view, LTA Zeolite crystals were obtained “in situ” by hydrothermal synthesis and characterized by x ray diffraction (XRD and scanning electron microscopy (SEM. We have studied the effect of hydrothermal synthesis time at 378 K. Likewise, the removal capacity of heavy metal from the active phase was evaluated in as a first step on diluted solutions of cooper salts at slightly acidic pH (~ 4,7.

    En este trabajo se evalúa de forma preliminar la efectividad del empleo de materiales basados en zeolita LTA, como fase activa para su incorporación en sistemas orientados a la eliminación de metales pesados presentes en aguas residuales. Este tipo de zeolitas con el canal principal de un diámetro mínimo libre de 0,41 nm y una baja relación SiO2/Al2O3 se presenta como un tamiz molecular interesante, que a su vez manifiesta una gran capacidad de intercambio iónico. Partiendo de este punto de vista, cristales de zeolita LTA fueron obtenidos “in situ” por síntesis hidrotermal y caracterizados por difracción de rayos X (DRX, y microscopia electrónica de barrido (MEB. Se ha estudiado el efecto del tiempo de tratamiento hidrotermal a 378 K. Asimismo, la capacidad de eliminación de metales pesados de la fase activa de los sistemas obtenidos fue evaluada en una primera etapa en soluciones diluidas de sales de cobre a pH ácido (~ 4,7.

  8. ELIMINACIÓN DE COLORANTES CATIÓNICOS USANDO OZONO, ZEOLITA NATURAL Y OZONO/ZEOLITA CATIONIC DYES REMOVAL USING OZONE, NATURAL ZEOLITE, AND OZONE/ZEOLITE

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    Héctor Valdés

    2009-12-01

    Full Text Available En este trabajo se comparan resultados experimentales de remoción azul de metileno (MB utilizando tratamientos basados en la oxidación con ozono (O3, la adsorción con zeolita natural (ZN, y tratamiento simultáneo de adsorción y oxidación con ozono en presencia de zeolita natural (O3/ZN. Se evalúa, a escala de laboratorio, el efecto del pH (2-8 y la presencia de sustancias atrapadoras radicales libres (iones acetatos en la velocidad de remoción y en la eficiencia de los procesos. Los experimentos se realizaron en un reactor diferencial compuesto por un estanque de 1 dm³ y una columna de 19 cm³ de capacidad. El ozono fue generado a razón de 5 g O3/h. Los resultados mostraron que el sistema simultáneo de oxidación/adsorción O3/ZN incrementa la velocidad de remoción del MB con respecto a los procesos separados de ozonización y adsorción con zeolita. En presencia de sustancias atrapadoras de radicales, se observó un 70% de disminución en la velocidad de remoción de MB cuando se empleó el tratamiento con O3 y sólo un 25% cuando se utiliza el tratamiento combinado O3/ZN. Los resultados sugieren que la reacción de oxidación del MB en el sistema tiene lugar fundamentalmente sobre la superficie de la zeolita.This paper compares experimental results on methylene blue (MB removal systems based on ozone oxidation, zeolite adsorption, and simultaneous adsorption-oxidation using ozone in the presence of natural zeolite. The effect of pH (2-8, and the presence of radical scavengers (sodium acetate on process rates and removal efficiencies are assessed at laboratory scale. The experimental system consisted of a 1L differential circular flow reactor and an ozone generator rated at 5 g O3/h. Results show that ozone oxidation combined with zeolite adsorption increases the overall MB oxidation rate with respect to ozonation process and zeolite adsorption. In presence of free radical scavenger, only a 25% of reduction on MB removal rate are

  9. ESTUDIO DEL IMPACTO TÉCNICO DE MEZCLAS DE CONCRETO HIDRÁULICO POR LA SUSTITUCIÓN PARCIAL DE CEMENTO POR ZEOLITA

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    I. Miranda Pasos

    2014-06-01

    Full Text Available La industria de la construcción cada vez más consciente de la necesidad de ejecutar obras con materiales que se obtengan y/o utilicen procesos industriales que minimicen la contaminación y, que contribuyan en el comportamiento de un producto como lo es el concreto hidráulico en la construcción, ha estado buscando alternativas de materiales que sustituyan total o parcialmente al cemento por otro cementante que contamine menos en su procesos de obtención y que conserve las propiedades o las mejore. Una alternativa para sustitución parcial del cemento es la zeolita, es un mineral que se obtiene por proceso de excavación y molienda de puzolana. La norma ASTM-618, define a las puzolanas como materiales silíceo o aluminio-silíceo que por sí solo poseen poco a ningún valor cementante, pero cuando se han dividido finamente y en presencia de agua e hidróxido de calcio (Cal reaccionan químicamente a temperatura ambiente para formar cementantes (Miranda, 2008. Recientemente se ha estudiado el efecto de adicionar mineral Cal-Zeolita para la elaboración del concreto, cuyos resultados son favorables al comportamiento mecánico y su durabilidad (Dopico J.J., et al. 2009. Para la elaboración de morteros para recubrimientos al incorporar arenas zeolíticas como sustituto de la arena tradicional (Tiburcio et al. 2008. El presente proyecto evaluó el comportamiento del concreto hidráulico en estado fresco y endurecido al sustituir de manera parcial cemento por zeolita. Se enfocó a la evaluación del comportamiento mecánico como al diseño de la mezcla de concreto hidráulico fabricado con cemento normal y con cemento-zeolita. Tomando en cuenta los resultados obtenidos, la zeolita incorporada en porcentajes entre el 5% y 10 % tiende a valores de resistencias muy cercanos al concreto normal, los modelos obtenidos así lo corroboran, por lo que se puede concluir la factibilidad de sustitución parcial de cemento por zeolita tomando en cuenta el

  10. Diagramas de eslabilidad de zeolitas. I. Zeolitas en ambientes confinados alcalinos

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    La Iglesia, A.

    1989-12-01

    Full Text Available The stability fieds of zeolites in saline alkaline-lake deposits has been studied. Thermodynamical equilibriums were calculed by ussing a method of stimating the Gibbs free energies of formation of zeolites. We have studied the following stability fields: - Diagram c1inoptilolite-erionite-phillipsite.- Diagram analcime-clinoptilolite-chabazite-erionite-mordenite-phillipsite.- Diagram K-feldspar-zeolites in saline alkaline-lake deposits.The obtained stability diagrams show the influence of silica activity, water activity and alkaline ions activity on equilibrium relationship between analcime and alkalic silicic zeolites, and or feldspar and zeolites. pH influence on the solubility zeolites has been also studied. These results show, at pH below 10, that the most silicic zeolites (clinoptilolite and mordenite are more stable than low silicic ones (analcime and chabazite. However, at pH above 10, the low silicic zeolites are the most stable phases.Se estudia la estabilidad de las zeolitas que aparecen en ambientes confinados salinos. Los cálculos de equilibrio se realizan usando valores de energía libre de Gibbs estimados teóricamente. En este artículo se presentan los siguientes diagramas de estabilidad:- Diagrama clinoptiloita-erionita-phillipsita.- Diagrama aoalcima-clinoptilolita-chabazita-eriooita-mordenita-phillipsita.- Diagrama feldespato potásico-zeolitas depósitos salinos.Los diagramas calculados ponen de manifiesto la influencia de las actividades de los iones alcalinos, alcalinotérreos, agua y sílice en el equilibrio entre las distintas zeolitas y entre estas y el feldespato potásico. Se estudia también la influencia del pH en la solubilidad de las zeolitas. Los resultados obtenidos demuestran que las zeolitas muy silícicas (clinoptilolita y mordenita son las más estables a pH inferiores a 10. Por el contrario, las zeolitas de bajo contenido en sílice (analcima y chabazita son las más estables a pH superiores a 10.

  11. Efecto de tres enmiendas orgánicas de la cal sobre la disponibilidad y la adsorción de fósforo

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    Carmen Rosa Gómez Laverde

    2010-09-01

    Full Text Available Para observar el efecto de materiales orgánicos y de la cal sobre la disponibilidad y la adsorción de fósforo en un suelo fuertemente ácido (Inceptic Hapludox, pobre en P, se efectuaron un ensayo de incubación en invernadero y un estudio de adsorción de P. Se utilizaron macetas que contenían 400 g de suelo, a los cuales se les dio una fertilización básica con aplicaciones de 90 kg P2O2/ha. Se aplicó gallinaza, compost o caupí (Vigna unguiculata en dosis de 0,0; 0,8 y 2,4 g M.O./lOO g suelo.

  12. Eliminación del arsénico en diferentes clases de aguas con zeolitas naturales

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    Lazo Camposano, Roberto

    2013-01-01

    Para el desarrollo del presente trabajo de Investigación se ha tenido Ia referencia sobre todo de las contaminaciones de las diferentes aguas sea este de origen natural, aguas subterráneas, aguas de rio, aguas procedentes de Iluvias, aguas de filtraciones, aguas de minas, etc, es decir toda clase de agua que contenga el arsénico que es perjudicial a la salud humana. En el presente trabajo se utilizará un medio adsorbente que consiste de zeolita natural (clinoptilolita) recubierta con óxido...

  13. Avaliação da introdução de cal hidratada nas argamassas aplicadas sobre blocos cerâmicos e sua influência no desempenho e morfologia

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    Giuliano Polito

    2008-01-01

    Este trabalho investiga a resistência de aderência de revestimentos argamassados sobre a alvenaria de blocos cerâmicos, concentrando-se na análise da microestrutura da interface argamassa/substrato, correlacionando-se ao comportamento mecânico da argamassa e à adição de cal hidratada na argamassa. Neste estudo foram avaliados cinco traços distintos, composto de cimento:cal:areia (1:0:6; 1:1:6; 1:2:8; 1:2:10; 0:1:6), aplicados sobre substrato de bloco cerâmico seco, com a utilização de técnica...

  14. SOBRE LA EDAD DE LOS HORNOS DE CAL EN EL ÁREA MAYA (About the age of the lime kilns in the Maya area

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    Soledad Ortiz Ruiz

    2015-12-01

    Full Text Available La investigación que presentamos es sobre el hallazgo y la datación arqueomagnética de hornos de cal en el área maya, México. La relevancia de la datación arqueomagnética consiste en localizar las construcciones arquitectónicas y dilucidar el periodo de utilización por las sociedades que habitaron la zona de ubicación de dichas construcciones. Asumimos que se trataba de hornos prehispánicos por su asociación con el contexto de la excavación. Sin embargo, los resultados de la combinación de dataciones y métodos arqueométricos permitieron ubicar estas estructuras en distintos periodos de utilización y, por tanto, asumir la continuidad de esta tecnología productiva más allá del periodo prehispánico. Asimismo los trabajos de datación nos permiten clarificar la utilización de esta tecnología y práctica productiva en dicha zona cultural. ENGLISH: The investigation presented here is related to the discovery and archaeomagnetic dating of lime kilns in the Maya area, Mexico. The relevance of such dating is to locate architectural constructions and elucidate the period of use by societies that are responsible for their construction. We assume a prehispanic period for the kilns because of their context within the excavation. The combination of dating methods and archaeometric experiments allowed the identification of different periods of use and, therefore, suggests the persistence of this production technology beyond the prehispanic period. Dating work also allows us to clarify the use of this technology and productive practices in this cultural area.

  15. ZEOLITAS EN LA FERTILIZACIÓN QUÍMICA DEL CACAO CCN-51 ASOCIADO CON CUATRO ESPECIES MADERABLES

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    Fernando David Sánchez Mora

    2014-05-01

    Full Text Available Se evaluó el efecto de dos zeolitas comerciales del tipo clinoptilolita: Roca Mágica® (RM y Zeolite C® (ZC, incluidas en la fertilización química sobre la producción y rentabilidad del cacao “CCN-51”, de origen sexual, asociado con cuatro especies maderables [Caoba de montaña (Colubrina arborescens (Mill. Sarg, fernánsanchez (Triplaris cumingiana F., guayacán blanco (Cybistax donell-smithii Rose y laurel prieto (Cordia macrantha Chadat]. En la fertilización fueron utilizados los dos tipos de zeolita (RM y ZC y dos niveles (25 y 30%, más un testigo (sin zeolita. La fertilización se fraccionó en tres partes aplicándose urea, MgSO4, K2O y P2O5. Se empleó un diseño de parcelas divididas con cuatro especies maderables, cinco subtratamientos (tipos y niveles de zeolita y un testigo, en cuatro repeticiones. Se utilizó la prueba de Tukey al 5% de probabilidad. Se midió la fenología del cacao (brotación, floración, fructificación, cherelles wilt, número de mazorcas sanas y producción de cacao en kg ha-1. El mayor número de brotes los emitieron las plantas de cacao asociadas con fernánsanchez en la época lluviosa, posiblemente por la menor cobertura aérea de esta especie. El cacao alcanzó su mayor fructificación en la época lluviosa con las asociaciones fernánsanchez y guayacán y, 30% de ZC. El mayor número de mazorcas sanas, y producción de cacao fue obtenido con la asociación fernánsanchez en la época seca. La mayor rentabilidad se encontró con fernánsanchez y 25% de RM.

  16. Efeito agudo do calçado de diferentes alturas sobre o comportamento angular do tornozelo Acute effect of shoes with different heights on the ankle angular behavior

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    Mirieli Denardi Limana

    2012-09-01

    Full Text Available Estudos descrevem que o uso de salto alto exige do corpo uma série de ajustes compensatórios, a fim de manter os seus movimentos e equilíbrio próximos à normalidade. No andar, a interferência do salto alto sobre o pé e sobre a articulação do tornozelo parece desencadear uma postura diferente da posição anatômica. O presente estudo teve como objetivos comparar a cinemática sagital do tornozelo em diferentes calçados e verificar a existência de um limite de altura de salto que possa levar a articulação do tornozelo a adaptações durante o andar. Esta pesquisa, caracterizada como experimental, foi constituída por uma análise cinemática bidimensional do tornozelo no plano sagital. A amostra foi composta por dez universitárias, com média de idade de 19,2 (±1,8 anos, que caminharam sobre uma esteira utilizando um tênis e três sandálias do tipo tamanco, com saltos de 3, 7 e 10 cm. Para cada ciclo de passada, foram identificados picos de movimento do tornozelo referentes à dorsiflexão e à flexão plantar. Os resultados mostraram que na flexão plantar, com o aumento da altura do salto, há uma tendência de acentuação do pico angular do tornozelo. Concluiu-se que saltos acima de 3 cm de altura induzem a articulação do tornozelo a realizar uma flexão plantar sustentada, mudando as características da marcha na fase de apoio e de balanço. Tais evidências sugerem alturas de saltos menores de 3 cm como limites de segurança para manutenção do padrão normal da marcha em mulheres jovens.Studies have described that using high heels requires a series of compensatory adjustments of the body to keep its movements and balance close to normality. When walking, the interference of high heels on the foot and on the ankle joint seems to initiate a different posture from the anatomical position. The present study aimed at comparing the sagittal kinematics of the ankle in different shoes and at verifying the existence of a height

  17. Aumento de la producción de biogás mediante el uso de zeolita natural

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    Francisco Díaz Marrero

    2011-02-01

    Full Text Available El presente trabajo analiza la influencia de una zeolita natural sobre el proceso de digestión anaerobia, a partir de las evidencias existentes sobre el incremento de la degradación de la materia orgánica y la producción de biogás cuando se añaden a los digestores ciertos materiales en los que se incluyen compuestos arcillosos. Teniendo en cuenta estos antecedentes es objetivo del presente trabajo contribuir a la creación de un biocatalizadorque favorezca la producción de biogás a partir de materiales de relativo bajo costo. A partir de lo reseñado en la literatura sobre las características de absorción del amonio por la zeolita (Roque, 19871 y partiendo de la existencia en Cuba de importantes yacimientos de este mineral que tiene como base fundamental una estructura porosa de aluminio-silicato.Fueron estudiadas diferentes dosis de zeolitas para determinar su efecto sobre los procesos anaerobios adicionándoles a éstos nitrógeno en forma urea (H2N-CO-NH2, compuesto éste que en su hidrólisis produce amonio.  The presentA woPrk LanIalCyseAs thCe inIfOluenNce Eof Sa n aItNuraDl zeUolitSe onT thRe pIrAoceLss Eof aSnaerobic digestion, starting from the existent evidences on the increment of the degradation of theorganic matter and the biogas production when they are added to the material certain digesters in those that are included compound loamy. Keeping in mind these antecedents is objective of the present work to contribute to the creation of a biocatalizer that favours the biogas production starting from materials of relative low cost.Starting from that pointed out in the literature on the characteristics of adsorption of the ammonium for the zeolite (Roque, 1987 and leaving of the existence in Cuba of important locations of this mineral that has like fundamental base a porous structure of aluminumsilicate.Different zeolite doses were studied to determine its effect on the anaerobic processes adding these nitrogen in urea form

  18. Efectos del ejercicio aeróbico interválico, combinado con entrenamiento de fuerza y de la restricción calórica, sobre la composición corporal de ratas obesas

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    I. Coll-Risco; D. Camiletti-Moirón; D.J. Tirado; E. Nebot; A. Andrade; R. Martínez; G. Kapravelou; J.M. Porres; P. Aranda; V.A. Aparicio

    2017-01-01

    Objetivo: Investigar los efectos de un programa de ejercicio aeróbico interválico, combinado con entrenamiento de fuerza, y de la restricción calórica, sobre el peso y la composición corporal de ratas genéticamente obesas. Método: Un total de 32 ratas genéticamente obesas fueron divididas aleatoriamente en dos grupos (n = 16) con o sin ejercicio aeróbico interválico combinado con entrenamiento de fuerza. A su vez, cada grupo, con o sin ejercicio aeróbico interválico combinado con entrenami...

  19. Efectos del ejercicio aeróbico interválico, combinado con entrenamiento de fuerza y de la restricción calórica, sobre la composición corporal de ratas obesas

    OpenAIRE

    Coll-Risco, I.; Camiletti-Moirón, D.; Tirado, D.J.; Nebot, E.; Andrade, A.; Martínez, R.; Kapravelou, G.; Porres, J.M.; Aranda, P.; Aparicio, V.A.

    2017-01-01

    Resumen Objetivo: Investigar los efectos de un programa de ejercicio aeróbico interválico, combinado con entrenamiento de fuerza, y de la restricción calórica, sobre el peso y la composición corporal de ratas genéticamente obesas. Método: Un total de 32 ratas genéticamente obesas fueron divididas aleatoriamente en dos grupos (n = 16) con o sin ejercicio aeróbico interválico combinado con entrenamiento de fuerza. A su vez, cada grupo, con o sin ejercicio aeróbico interválico combinado con en...

  20. Efecto del estrés calórico sobre la producción embrionaria en vacas superovuladas y la tasa de gestación en receptoras

    Directory of Open Access Journals (Sweden)

    Renato Raúl Lozano-Domínguez

    2010-01-01

    Full Text Available Los objetivos fueron determinar el efecto de interacción del estrés calórico de la época de producción del embrión y la de transferencia sobre la tasa de gestación de vacas receptoras, y evaluar si existe efecto del estrés calórico sobre la producción y calidad embrionaria en vacas superovuladas. Vacas lactantes de la raza Holstein fueron superovuladas en la época templada (n=20 y cálida (n=22. Los embriones fueron colectados, congelados y transferidos a vacas Holstein lactantes durante la época templada (n=54 y cálida (n=53. La respuesta superovulatoria (85.1 % y la tasa de fertilización (76.2 % fueron similares en ambas épocas (P>0.05. En la época templada, el número de óvulos y embriones (10.6, y embriones transferibles (7.4 colectados por vaca fueron superiores a los observados en la época cálida (6.1 y 4.4, respectivamente (P<0.05. La tasa de gestación de las vacas receptoras fue más alta durante la época templada cuando éstas recibieron un embrión producido en condiciones templadas (45.0 %, que en aquéllas que recibieron un embrión de época cálida (21.5 %, P<0.05. Independientemente de la época de producción del embrión, la tasa de gestación de las vacas receptoras fue menor durante la época cálida (13.9 % que en la templada (33.2 %, P<0.05. El estrés calórico compromete la producción embrionaria y la competencia del embrión para el establecimiento de la gestación, y se mostró un efecto materno durante la época cálida, que impacta negativamente la sobrevivencia del embrión después de la transferencia.

  1. Natural Mexican zeolite, potential material for hydrogen storage; Zeolita natural mexicana, material para su posible uso en el almacenamiento de hidrogeno

    Energy Technology Data Exchange (ETDEWEB)

    Iturbe-Garcia, J. L.; Lopez Munoz, B. E. [Instituto Nacional de Investigaciones Nucleares (Mexico)]. E-mail: joseluis.iturbe@inin.gob.mx

    2009-09-15

    This work presents a study of the use of natural Mexican zeolite as a possible alternative for hydrogen storage. This zeolite material is from the state of Sonora. Its particle size was decreased using a grinding treatment with a mechanical alloying system for 5 hours. The mechanical alloying equipment was built in our Institute (Instituto Nacional de Investigaciones Nucleares, ININ). Later, zeolite in powder form was characterized with x-ray diffraction and sweep electron microscopy. It was heated in a micro-reactor at 350 degrees Celsius, which was simultaneously emptied over 2 hours to eliminate humidity and possible gases trapped in its structure. Next, the temperature was reduce to 10 degrees Celsius and it was placed in contact with ultra-high pure hydrogen at a pressure of 10 bars for 10 minutes. The analysis of hydrogen trapped in the zeolite was conducted with gas chromatography. The results of the chromatograms indicate that the zeolite absorbed and liberated the hydrogen in completely different conditions than those reported in the literature. That is, with our experimental conditions at low pressure and temperature, the hydrogen was absorbed in this type of material. [Spanish] En este trabajo se presenta un estudio sobre el uso de una zeolita natural de origen mexicano como posible alternativa para almacenar hidrogeno. Este material zeolitico procede del Estado de Sonora, al cual se le disminuyo el tamano de particula mediante un tratamiento de molienda con un sistema de aleado mecanico durante 5 horas. El equipo de aleado mecanico se construyo en nuestro Instituto (Instituto Nacional de Investigaciones Nucleares, ININ). Posteriormente, la zeolita en forma de polvo se caracterizo por medio de difraccion de rayos X y microscopia electronica de barrido. Se sometio a calentamiento en un micro-reactor a 350 grados Celsios y al mismo tiempo haciendo vacio durante 2 horas, para eliminar humedad y posibles gases que estuvieran atrapados en su estructura. En

  2. Consolidating BPR with CALS

    DEFF Research Database (Denmark)

    Larsen, Michael Holm; Leinsdorff, Torben; Madsen, Claus

    1999-01-01

    For almost a decade, Business Process Reengineering (BPR) has met a high degree of criticism as project implementations have failed to succeed in industry and public organisations. A vast majority of the reengineering literature recommends that information technology (IT) should enhance the effic......For almost a decade, Business Process Reengineering (BPR) has met a high degree of criticism as project implementations have failed to succeed in industry and public organisations. A vast majority of the reengineering literature recommends that information technology (IT) should enhance...... the likelihood of BPR success. Firstly, CALS contributes to process orientation and process organising in a BPR project. This is partly because CALS satisfies the increased information need of the process team members and partly because CALS breaks down information-based barriers. Secondly, CALS contributes...

  3. Efeito dos conservantes sobre a densidade calórica em músculos de Hoplias aff. malabaricus (Bloch, 1794 (Osteichthyes, Erythrinidae Effect of preservatives on caloric density in the muscles of Hoplias aff. malabaricus (Bloch, 1794 (Osteichthyes, Erythrinidae

    Directory of Open Access Journals (Sweden)

    Milena Morimoto

    2002-05-01

    Full Text Available A conservação de amostras para a determinação dos valores calóricos em estudos de bioenergética de peixes tem se apresentado, na literatura, com uma variedade de métodos. Com o intuito de identificar o efeito de conservantes sobre os resultados obtidos com as diferentes técnicas de conservação, foram coletados exemplares adultos de Hoplias aff. malabaricus (Osteichthyes, Erythrinidae na planície de inundação do rio Paraná. De cada exemplar, foram retiradas 5 amostras da musculatura, as quais foram submetidas aos seguintes tratamentos: formol (4%, álcool (70%, congelamento (-10oC, nitrogênio líquido (-180oC e estufa à 60oC (amostra controle. Depois de 30 dias, todas as amostras foram secas em estufa à 60oC e posteriormente procedeu-se à determinação calórica de cada uma das amostras em bomba calorimétrica. Detectaram-se diferenças significativas entre os tratamentos (ANOVA: N=206; F=50,28; pThe preservation of samples for caloric values determination in bioenergetic studies of fish has been presented literature with a variety of methods. To identify the effect of preservatives over the results obtained with different preservation techniques, adult individuals of Hoplias aff. malabaricus (Osteichthyes, Erythrinidae were collected in Paraná river floodplain. From each fish, five samples were extracted from its dorsal muscle and submitted each sample for a different treatment: ice (-10ºC, formaldehyde (4%, alcohol (70%, liquid nitrogen (-180oC and a control sample immediately oven dried (60oC. After 30 days, the treatments were oven dried (60oC and caloric values of each sample were determined in a caloric bomb. Significant differences among the treatments were found (ANOVA: n = 206; F = 50.28; p < 0.001. Some evaluations of the effects of each treatment were presented for further comparisons with the results published in literature.

  4. Captación de amonio en zeolita al incubar gallinaza y residuos de codorniz

    Directory of Open Access Journals (Sweden)

    Sarai Guadalupe Valerio Luna

    2016-04-01

    Full Text Available Con la finalidad de conocer el efecto de la zeolita en la volatilización del dióxido de carbono (CO2 y amoniaco (NH3, se estableció un ensayo de incubación durante 20 días en condiciones controladas de humedad y temperatura, para lo cual se realizaron mezclas entre residuos orgánicos de aves y cantidades de zeolita utilizando un diseño factorial 24, teniendo un total de 8 tratamientos donde se evaluaron cada día las emisiones de CO2 y NH3. Los datos obtenidos fueron sometidos a un análisis de varianza y a una prueba de Tukey. Los resultados mostraron que la zeolita ayuda a la disminución de emisiones de NH3, y no afectó la actividad microbiana presente, se concluye que la zeolita atrapó el ion amonio en su estructura y no permitió su transformación a NH3.

  5. SÍNTESIS SELECTIVA DE BENZALDEHÍDO USANDO ZEOLITAS MODIFICADAS CON METALES DE TRANSICIÓN

    Directory of Open Access Journals (Sweden)

    Clara Saux

    2012-01-01

    Full Text Available Se estudió la oxidación selectiva de estireno para la obtención de benzaldehído sobre zeolitas ZSM-5 modificadas con diferentes metales de transición (cromo, cobalto, hierro, zinc, manganeso y cobre y utilizando peróxido de hidrógeno como oxidante. Dado que los mejores resultados se obtuvieron utilizando Cr-ZSM-5, estos materiales se estudiaron evaluando el efecto del tiempo de reacción, la masa de catalizador, la relación molar estireno/hidroperóxido, la naturaleza del solvente y la temperatura de reacción. Los mejores resultados de las condiciones evaluadas se obtuvieron trabajando con una relación molar sustrato/oxidante de 0,45 y utilizando acetonitrilo como solvente, dado su carácter aprótico y de mayor polaridad de los solventes evaluados (acetonitrilo, acetona, 2-butanol y 2-propanol. El aumento en la temperatura de reacción mostró un incremento en la conversión de estireno, el cual se desaceleró al superar los 60 oC por descomposición térmica del peróxido de hidrógeno.

  6. Evaluación del aparato respiratorio en trabajadores expuestos a polvo del mineral zeolita

    Directory of Open Access Journals (Sweden)

    Guillermo López Espinosa

    1999-01-01

    Full Text Available Se realizó un estudio observacional de tipo transversal en la Mina-Planta de Zeolita Tasajeras, que pertenece al municipio de Ranchuelo, Villa Clara, en el período comprendido entre junio y septiembre de 1997, con el objetivo de determinar el estado clínico y funcional ventilatorio de los trabajadores. A los 73 pacientes con 2 o más años en la fábrica se les aplicó un cuestionario, y se les realizó un examen físico y una prueba funcional ventilatoria. Los resultados más relevantes corroboran que los trabajadores del área de mayor exposición al polvo refieren un mayor número de síntomas respiratorios, sobre todo los fumadores. Sin embargo, el 94,5 % presenta un examen físico de tórax negativo, el 68,8 % de los pacientes con prueba funcional ventilatoria patológica integran el área planta, son fumadores el 62,5 %, y el 63,1 % no usa con frecuencia el filtro respiratorio como medio de protección individualA croos-sectional observational study was carried out at the mine-plant zeolite in Tasajeras, municipality of Ranchuelo, Villa Clara, from June to September, 1997, aimed at determining the clinical and functional ventilatory status of the workers. 73 patients with 2 or more years in the factory answered a questionnarie and underwent a physical examination and a functional ventilatory test. According to the results, those workers that were more exposed to dust had a higher number of respiratory symptoms, mainly smokers. However, 94,5 % had a negative chest physical examination. 68.8 % of the area patients with pathological functional ventilatory test work in the of the plant. 62.5 % are smokers and 63.1 % do not use frequently the respiratory filter as a menas of individual protection.

  7. Influencia de los materiales cementantes suplementarios sobre la cinética de transporte de agua y las propiedades mecánicas de cal hidratada y morteros de cemento

    OpenAIRE

    Ince, C.; Derogar, S.; Michelitsch, T. M.

    2015-01-01

    El objetivo de este artículo es investigar el papel de los materiales cementantes suplementarios (SCMs) en la cinética de transporte del agua y en las propiedades mecánicas de los morteros de cal hidratada (CL90) y cemento Portland. Las propiedades de la cal hidratada son significativamente diferentes a las del cemento y por lo tanto el control de las propiedades de los morteros frescos y endurecidos es fundamental en la optimización mortero/substrato en albañilería. Los parámetros estudiados...

  8. Solar CalPoly

    Energy Technology Data Exchange (ETDEWEB)

    Stannard, Sandra [California Polytechnic State Univ., San Luis Obispo, CA (United States)

    2016-06-15

    The target budget of INhouse was about $650,000 for all materials and student expenses of the Solar Decathlon competition. In order to reach our goal, Cal Poly students and faculty worked with the College of Architecture and Environmental Design’s External Relations office to actively fundraise for INhouse. Students connected with Cal Poly alumni through phone calls, postal mail, email, and live presentations to reach as many alumni in the state of California as possible. Before construction begun, students and faculty met on a weekly basis to determine what brands of materials for the home to use and who would be responsible for reaching out to the company to seek a donation. Our College of Architecture and Environmental Design’s administration was essential in helping us fundraise. For some time, the college was hoping to depend on about half of our fundraising expenses to be covered through the sale of INhouse. However, plans to sell the home fell through during the design development phase; the college turned to the sale of a different asset in to help us meet our goal. If we were to do this project again, completing the design concept and securing a future location of our home sooner would have enhanced our fundraising activities.

  9. Efectos del ejercicio aeróbico interválico, combinado con entrenamiento de fuerza y de la restricción calórica, sobre la composición corporal de ratas obesas

    Directory of Open Access Journals (Sweden)

    I. Coll-Risco

    2017-03-01

    Conclusiones: Tanto el programa de ejercicio aeróbico interválico, combinado con entrenamiento de fuerza desarrollado, como la restricción calórica, fueron eficaces, mejorando la composición corporal de ratas obesas, pero el ejercicio lo hizo en mayor magnitud.

  10. REMOCIÓN DE COBRE Y NÍQUEL POR INTERCAMBIO CATIÓNICO CON UNA ZEOLITA NATURAL

    Directory of Open Access Journals (Sweden)

    Arnoldy Estupiñan

    2010-10-01

    Full Text Available Se empleó la zeolita natural clinoptilolita, para remover cobre y níquel de aguas residuales de una industria de galvanotecnia. La capacidad de intercambio determinada para la zeolita transformada al estado homoiónico sódico, fue de 0,794 meq/g para cobre y 0,447 meq/g para níquel. Se realizaron ensayos en cochada y en columna, alcanzando éste último un mayor acercamiento al equilibrio. En los ensayos de regeneración, la zeolita sódica concentró el cobre hasta 23,5 veces con respecto al valor que presenta en los enjuagues de los baños de recubrimiento en medio ácido, mostrando su potencialidad para usarla en el tratamiento de estos residuos, por su efectividad y bajo costo.

  11. La zeolita y su efecto en la eficiencia del nitrógeno en arroz y maíz

    Directory of Open Access Journals (Sweden)

    Miguel Soca

    2014-12-01

    Full Text Available Este trabajo evaluó el efecto de la zeolita en las reducciones de volatilización del nitrógeno amoniacal (RVNA y volumen de lixiviados (RVL así como en rendimientos de arroz Oryza sativa L. y maíz Zea mays L. En el primer experimento bajo un Diseño Completamente al Azar (DCA se evaluó el tamaño de partícula de zeolita (< 1 mm, 1 - 2 mm, 2 - 3 mm y 3-5 mm en RVNA. El segundo experimento, consistió en evaluar RVL con la aplicación de cuatro tratamientos: testigo (T, zeolita (Z, urea (U y urea + zeolita (UZ. El tercer experimento se desarrolló en un cultivo de arroz, donde se evaluaron dos métodos de aplicación (al voleo y trasplante con cuatro tratamientos (T, U, UZ10% y UZ15% y su efecto en el rendimiento del cultivo. El cuarto experimento realizado en un campo de maíz con dos tratamientos (U y UZ15% evaluó el rendimiento del cultivo en dos suelos (aluvial y esquelético. Los tamaños de partícula entre 3 y 5 mm obtuvieron RVNA del 50% y RVL del 48%. La aplicación de zeolita en arroz obtuvo RVNA de 60% y mejoró los rendimientos sin encontrar diferencias entre método de aplicación. También su aplicación mejoró el peso de grano por mazorca y el peso seco de grano de maíz. La zeolita mejoró la eficiencia de la fertilización nitrogenada.

  12. Metodología de los trabajos de campo para la prospección de zeolitas naturales

    OpenAIRE

    Costafreda Mustelier, Jorge Luis

    2011-01-01

    Los yacimientos de zeolitas naturales, como cualquier otro, están sujetos a normas de investigación que varían en dependencia de las necesidades del momento. En los últimos seis años, por citar un ejemplo, el estudio y la explotación de los recursos no metálicos en España, incluyendo las zeolitas naturales, ha experimentado un fuerte declive que ubica la demanda muy por debajo de las cifras conocidas antes del 2008, fecha en que se destapó la verdadera cara de la llamada “burbuja inmobiliaria...

  13. Implementação de medidas ergonômicas em uma indústria calçadista: uma análise de suas influências sobre as condições de trabalho na atividade de desenformar calçados

    OpenAIRE

    Colaço, Geraldo Alves

    2013-01-01

    Este trabalho analisou a influência da implementação de medidas ergonômicas nas condições de trabalho do setor de montagem cimentado na atividade de desenformar calçado em uma indústria localizada no estado da Paraíba. Para tanto, realizou-se uma análise comparativa quanto às melhorias ergonômicas anteriormente implantadas nos postos de trabalho da empresa, segundo a metodologia Situação, Problema e Melhoria (SPM) (MÁSCULO; VIDAL, 2011), buscando constatar se a aplicação dessas medidas influe...

  14. Ácidos silícicos como catalizadores y fuente de silicio/metal para zeolitas

    OpenAIRE

    Barea Berzosa, Eva María

    2011-01-01

    Barea Berzosa, EM. (2005). Ácidos silícicos como catalizadores y fuente de silicio/metal para zeolitas [Tesis doctoral no publicada]. Universitat Politècnica de València. doi:10.4995/Thesis/10251/1868.

  15. REMOCIÓN DE PLOMO EN AGUA A PARTIR DE MATERIAL NANOESTRUCTURADO, NANOTUBOS DE CARBONO SOPORTADOS EN ZEOLITA NATURAL

    Directory of Open Access Journals (Sweden)

    Holanda I. Cruz

    2017-01-01

    Full Text Available En este trabajo se realizó la cinética de remoción de plomo en agua con un material nanoestructurado, nanotubos de carbono soportados en zeolita (NTC-ZN, y con zeolita natural (ZN. La zeolita utilizada proviene de los Valles Centrales de Oaxaca, México. El material nanoestructurado se sintetizó por el método de aspersión pirolítica bajo condiciones especificas; se caracterizó por microscopía electrónica de barrido y de transmisión (SEM y TEM y determinación de área superficial (BET. Los materiales se probaron con una solución de plomo a una concentración de 10 ppm bajo condiciones de agitación y filtrado a vacío. El filtrado se caracterizó por espectrometría de masas con plasma acoplado inductivamente (ICP-MS. Los porcentajes de remoción fueron de 99.96% para NTC-ZN y 99.27% para la zeolita natural en 120 minutos. Sin embargo un 94.5% de remoción se presenta en un tiempo 6 veces menor con el híbrido que con ZN.

  16. REMOCION DE CROMO Y MATERIA ORGANICA DISUELTA EN EFLUENTES INDUSTRIALES POR ADSORCIÓN E INTERCAMBIO IONICO EN ZEOLITA Y CARBON ACTIVADO.

    OpenAIRE

    COVARRUBIAS GALLARDO, CRISTIAN MAURICIO; COVARRUBIAS GALLARDO, CRISTIAN MAURICIO

    2005-01-01

    Se estudió la remoción de cromo y materia orgánica desde solución acuosa utilizando métodos de separación basados en el uso de zeolitas y carbón activado. Para este propósito se evaluó la operación de remoción de cromo en columnas empacadas de zeolita y c 175p.

  17. CalNex Observational Data

    Data.gov (United States)

    U.S. Environmental Protection Agency — Observations made during the 2010 CalNex measurement campaign. This dataset is associated with the following publication: Woody , M., K. Baker , P. Hayes, J....

  18. CalCOFI Egg Counts

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish egg counts and standardized counts for eggs captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets], and...

  19. ISOMERIZACIÓN DEL 1-CICLOHEXILOCTANO EN ZEOLITAS H-ZSM-22 Y H-Y

    Directory of Open Access Journals (Sweden)

    Jorge Quintero

    2009-06-01

    Full Text Available En este trabajo presentamos los resultados de la evaluacion energetica de los intermediarios de la isomerización del 1-ciclohexiloctano en dos etapas. La primera etapa corresponde a la isomerización del 1-ciclohexiloctano en fase gaseosa vía carbocationes clásicos, usando el nivel de teoría DFT/B3LYP y conjunto de funciones base 6-31G.  En la segunda etapa se desarrolló la coordenada de reacción de la isomerización del 1-ciclohexiloctano en presencia de zeolitas ácidas H-ZSM-22 y H-Y empleando el método ONIOM, usando los niveles de teoría B3LYP/6-31G:UFF. Nuestros resultados muestran diferencias significativas entre las reacciones en fase gaseosa y condensada. Estas diferencias ponen de manifiesto la influencia del confinamiento cuántico que sufren las moléculas al interior de los sistemas microporosos del tipo zeolitas.

  20. Design de calçado do processo criativo à produção

    OpenAIRE

    Rolo, Margarida Filipa Gonçalves Araújo

    2016-01-01

    O seguinte projeto tem como tema principal o Design de calçado, pois foi com base nesse tema que foi feito todo o enquadramento teórico de modo a fundamentar a criação da coleção final de calçado a que este projeto se pretende. Logo, foi realizada uma pesquisa sobre a história do calçado, os seus materiais e componentes, tipos de sapatos e saltos, a indústria do calçado em Portugal e seus principais designers, entre outros. Este projeto consiste na criação de uma coleção cápsula de calçado...

  1. IntCal04 terrestrial radiocarbon age calibration, 0-26 cal kyr BP

    NARCIS (Netherlands)

    Reimer, Paula J.; Baillie, Mike G.L.; Bard, Edouard; Bayliss, Alex; Beck, J. Warren; Bertrand, Chanda J.H.; Blackwell, Paul G.; Buck, Caitlin E.; Burr, George S.; Cutler, Kirsten B.; Damon, Paul E.; Edwards, R. Lawrence; Fairbanks, Richard G.; Friedrich, Michael; Guilderson, Thomas P.; Hogg, Alan G.; Hughen, Konrad A.; Kromer, Bernd; McCormac, Gerry; Manning, Sturt; Bronk Ramsey, Christopher; Reimer, Ron W.; Remmele, Sabine; Southon, John R.; Stuiver, Minze; Talamo, Sahra; Taylor, F.W.; Plicht, Johannes van der; Weyhenmeyer, Constanze E.

    2004-01-01

    A new calibration curve for the conversion of radiocarbon ages to calibrated (cal) ages has been constructed and internationally ratified to replace IntCal98, which extended from 0–24 cal kyr BP (Before Present, 0 cal BP = AD 1950). The new calibration data set for terrestrial samples extends from

  2. Función ventilatoria en obreros expuestos al polvo de zeolita

    Directory of Open Access Journals (Sweden)

    Guillermo López Espinosa

    2000-08-01

    Full Text Available El presente estudio descriptivo y prospectivo se realizó en la Mina-Planta Zeolita Tasajeras, ubicada en el municipio de Ranchuelo, provincia de Villa Clara, desde septiembre del año 1998 a 1999 con el objetivo de evaluar la función ventilatoria en un grupo de obreros expuestos al polvo del mineral. A los 37 trabajadores que llevan 2 o más años de labor en el centro se les aplicó un cuestionario y se efectuaron 2 estudios espirométricos con un intervalo de 1 año. La información se analizó y los resultados fueron: de los 16 pa-cientes con prueba funcional ventilatoria patológica en el año 1998 se extendió a 24 en el 1999. El 64,8 % con afectación espirométrica mantiene entre 6 a 10 años de exposición al polvo del mineral zeolita y el 58,3 % son fumadores. El patrón espirográfico que predominó fue el obstructivo (56,8 % y se aprecia en el 62,1 % de los estudiados una disminución del flujo espiratorio forzado al 25 % (Vmax 25/H/L/TThe present descriptive and prospective study was conducted in "Tasajeras" Zeolite Mine-Plant, located in the municipality of Ranchuelo, province of Villa Clara, from September, 1998, to September, 1999, aimed at evaluating the ventilatory function in a group of workers exposed to zeolite dust. 37 workers with 2 or more years in the center answered a questionnarie. 2 sperimotric studies were carried out with a one-year interval. The information was analyzed and the results were the following: the number of patients undergoing the pathological ventilatory functional test was increased from 16, in 1998, to 24, in 1999. 64.8% of those with spirometric affectation have been exposed between 6 and 10 years to zeolite dust and 58.3% are smokers. The obstructive spirographic pattern prevailed (56.8%. A reduction of the forced expiratory flow to 25% (Vmax 25/H/L/T was observed in 62.1% of the studied individuals

  3. NotCal04 : Comparison/calibration C-14 records 26-50 cal kyr BP

    NARCIS (Netherlands)

    Plicht, J. van der; Beck, J.W.; Bard, E.; Baillie, M.G.L.; Blackwell, P.G.; Buck, C.E.; Friedrich, M.; Guilderson, T.P.; Hughen, K.A.; Kromer, B.; McCormac, F.G.; Bronk Ramsey, C.; Reimer, P.J.; Reimer, R.W.; Remmele, S.; Richards, D.A.; Southon, J.R.; Stuiver, M.; Weyhenmeyer, C.E.

    2004-01-01

    The radiocarbon calibration curve ImCal04 extends back to 26 cal kyr BP. While several high-resolution records exist beyond this limit, these data sets exhibit discrepancies of up, to several millennia. As a result, no calibration curve for the time range 26-50 cal kyr BP can be recommended as yet,

  4. Síntesis de Zeolitas del tipo ZSM y su utilización en la producción de Hidrocarburos aromáticos a partir de Metanol

    Directory of Open Access Journals (Sweden)

    Jorge Bonilla

    2009-10-01

    Full Text Available Se sintetizaron las zeolitas ZSM-5 H *, ZSM- 8H * y ZSM-11H * y se utilizaron como catalizadores en la conversión de metanol a hidrocarburos y agua. La zeolita ZSM-5 presentó los mejores rendimientos de conversión a productos de punto de ebullición similares a los de la gasolina y en su mayoría aromáticos.

  5. CALS - What are the Potentials for SMEs ?

    DEFF Research Database (Denmark)

    Bilberg, Arne; Larsen, Michael holm; Langer, Gilad

    1996-01-01

    The Danish CALS Center initiative, aims at making CALS operational in Danish industry. The center consists of three Danish companies, Bang & Olufsen, Odense Steel Shipyard, Nilfisk besides from the Technical University of Denmark and the Danish Technological Institute. The objective is to demonst...

  6. Empresariado industrial e desenvolvimento socioeconômico: estudo do discurso do empresariado calçadista paulista frente ao mundo globalizado (1995-2010)

    OpenAIRE

    Guaraldo, Paula D'Andrea [UNESP

    2014-01-01

    A tese teve como objetivo desenvolver um estudo sobre a fração da classe empresarial brasileira composta pelo empresariado industrial calçadista. A proposta foi conhecer o discurso do empresariado calçadista paulista dos polos produtores calçadistas de Franca, Birigui e Jaú, frente às questões ligadas ao desenvolvimento econômico no contexto globalizado em que se encontra, por meio da análise de suas manifestações públicas em veículos de comunicação voltados ao empresariado nacional sobre o p...

  7. The Pace of CalWORKs Implementation

    National Research Council Canada - National Science Library

    Klerman, Jacob

    2000-01-01

    ...) and Greater Avenues to Independence (GAIN) with the California Work Responsibility to Kids (CalWORKs) program. Following an open and competitive bidding process, the California Department of Social Services...

  8. The Pace of CalWORKS Implementation

    National Research Council Canada - National Science Library

    Klerman, Jacob

    1999-01-01

    ...) and Greater Avenues to Independence (GAIN) with the California Work Responsibility to Kids (CalWORKs) program. Following an open and competitive bidding process, the California Department of Social Services...

  9. Views of a Cal/OSHA Inspector.

    Science.gov (United States)

    Oudiz, Jack

    2009-01-01

    Retiring CAL/OSHA Industrial Hygienist and Senior Safety Engineer Jack Oudiz offers his thoughts in the nature of a voluntary "exit interview" on his years working for the agency and its performance in its mission.

  10. CalCOFI Egg Counts Positive Tows

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish egg counts and standardized counts for eggs captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets], and...

  11. CalCOFI Larvae Counts Positive Tows

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for eggs captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  12. Developmental evolution of flowering plant pollen tube cell walls: callose synthase (CalS gene expression patterns

    Directory of Open Access Journals (Sweden)

    Abercrombie Jason M

    2011-07-01

    Full Text Available Abstract Background A number of innovations underlie the origin of rapid reproductive cycles in angiosperms. A critical early step involved the modification of an ancestrally short and slow-growing pollen tube for faster and longer distance transport of sperm to egg. Associated with this shift are the predominantly callose (1,3-β-glucan walls and septae (callose plugs of angiosperm pollen tubes. Callose synthesis is mediated by callose synthase (CalS. Of 12 CalS gene family members in Arabidopsis, only one (CalS5 has been directly linked to pollen tube callose. CalS5 orthologues are present in several monocot and eudicot genomes, but little is known about the evolutionary origin of CalS5 or what its ancestral function may have been. Results We investigated expression of CalS in pollen and pollen tubes of selected non-flowering seed plants (gymnosperms and angiosperms within lineages that diverged below the monocot/eudicot node. First, we determined the nearly full length coding sequence of a CalS5 orthologue from Cabomba caroliniana (CcCalS5 (Nymphaeales. Semi-quantitative RT-PCR demonstrated low CcCalS5 expression within several vegetative tissues, but strong expression in mature pollen. CalS transcripts were detected in pollen tubes of several species within Nymphaeales and Austrobaileyales, and comparative analyses with a phylogenetically diverse group of sequenced genomes indicated homology to CalS5. We also report in silico evidence of a putative CalS5 orthologue from Amborella. Among gymnosperms, CalS5 transcripts were recovered from germinating pollen of Gnetum and Ginkgo, but a novel CalS paralog was instead amplified from germinating pollen of Pinus taeda. Conclusion The finding that CalS5 is the predominant callose synthase in pollen tubes of both early-diverging and model system angiosperms is an indicator of the homology of their novel callosic pollen tube walls and callose plugs. The data suggest that CalS5 had transient expression

  13. Estimación de propiedades termodinámicas de silicatos. Construcción de diagramas de actividad de zeolitas

    Directory of Open Access Journals (Sweden)

    La Iglesia, A.

    1995-12-01

    Full Text Available In this paper we analyze the present methods of estimation of the thermodynamic properties of silicates with special emphasis on the free energy and enthalpy of zeolites. These data are not available in the literature, as these phases are chemically complexo The obtained values allow us to build the 10 following thermodynamic equilibrium diagrams: solubility of laumontite, chabazite, analcime, volcanic glass, zeolite A and zeolite X, and stability diagrams of chabazite-analcime-phillipsite-volcanic glass, clinoptilolite-phillipsite-erionite, prehnite-laumontite-heulandite, and kaolinite-metakaolinhidrosodalite-zeolite A. These diagrams can be useful to understand the genesis of these minerals and the processes that allow their formation in the laboratory.En este artículo se pasa revista a los métodos actuales de estimación de propiedades termodinámicas de silicatos, haciendo especial énfasis a los dedicados a la estimación de la energía libre de formación y de la entalpía de zeolitas, datos poco disponibles en la bibliografía debido a la complejidad química de estas fases. Los valores obtenidos han permitido construir los 10 diagramas de equilibrio termodinámico siguientes: diagramas de solubilidad de laumontita, chabazita, analcima, vidrio volcánico, zeolita A y zeolita X y los de estabilidad de chabazita-analcima-philipsitavidrio volcánico, clinoptilolita-philipsita-erionita, prehnita-laumontita-heulandita y caolinita-metacaolinita-hidrosodalita-zeolita A. Estos diagramas pueden explicar la génesis de los minerales o los procesos que dan lugar a su síntesis en el laboratorio.

  14. A PROPOSITO DE UN ENSAYO CON ABONOS (cal y harina de huesos EN ALFALFAl (Medicago sativa

    Directory of Open Access Journals (Sweden)

    Isidoro Mogilner

    1960-01-01

    Full Text Available En este trabajo, los autores estudian el efecto que sobre el rendimiento de la alfalfa (Medicago sativa produce la incorporación de diferentes dosis de cal y harina de huesos, en un suelo pobre de P y Ca; de una textura pesada con alto contenido de arcilla en todos los horizontes, de un pH ácido (5.1 a 6.2 y que es característico de la zona donde fué hecha la experiencia.Se han obtenido resultados referentes a la influencia de la inoculación de la semilla con Rhizobium y el agregado de cal y harina de huesos sobre los rendimientos.

  15. 884 Cal.BP and all that

    International Nuclear Information System (INIS)

    Switsur, Roy

    1986-01-01

    A history of the development of the technique of radiocarbon dating highlights the two problems with this method. The first is calibration; the radiocarbon calendar is not linear. However two independent experiments to provide high precision measurements in tree rings have resulted in a high precision calibration curve. The second is how to denote radiocarbon ages and calibrated dates, as this depends on how the dendrochronology time scale used in the calibration is transferred to the actual calendar. If the zero of the dendroscale is transferred from the origin of the Christian calendar to AD 1950, radiocarbon ages are designated CAL BP (BP = before present). There is an alternative method which results in CAL AD and CAL BC. A suggestion for a standard notation is made to avoid the confusion of two systems. (U.K.)

  16. Efecto antiinflamatorio preclínico del polvo seco de Caléndula officinalis

    OpenAIRE

    Núñez Figueredo, Yanier; Montero Alarcón, Claudia; Agüero Fernández, Sara; Muñoz Cernuda, Adriana

    2007-01-01

    Para demostrar la actividad antiinflamatoria del polvo seco Caléndula officinalis secado por atomización se emplearon dosis de 50, 150 y 450 mg/Kg y se evaluó el efecto sobre la inflamación aguda provocada por carragenina, dextrán, histamina y serotonina y granuloma inducido por discos de algodón en ratas y edema auricular inducido por aceite de crotón en ratones. El polvo seco mostró efecto inhibitorio sobre los diferentes modelos empleados sin afectar el peso del timo y las glándulas suprar...

  17. Evaluación de la zeolita natural utilizada como una tecnología productiva y limpia, aplicada al pasto Maralfalfa (Pennisetum sp) como un complemento en el uso de los fertilizantes nitrogenados

    OpenAIRE

    Pérez-Marín, Manuel Francisco

    2014-01-01

    Proyecto de Graduación (Maestría en Gestión de Recursos Naturales y Tecnologías de Producción) Instituto Tecnológico de Costa Rica, Escuela de Ingeniería Agroforestal, 2014. La necesidad de buscar alternativas para el aprovechamiento de fertilizantes en pastos de alta calidad como Maralfalfa (Pennisetum sp), lleva a investigar a la zeolita a modo de tecnología complementaria al programa de fertilización. Países como México, Colombia, Ecuador y Bolivia han utilizado la zeolita de tal forma ...

  18. LumiCal alignment system - Status report

    CERN Document Server

    Daniluk, W.; Lesiak, T.; Moszczyński, A.; Pawlik, B.; Wojtoń, T.; Zawiejski, L.

    2015-01-01

    The paper describes the status of the laser-based alignment-system for the luminosity detector, LumiCal, taking into considerations the conditions of the International Large Detector in the International Linear Collider project. The design of the system comprises two parts: the first one containing semi-transparent silicon sensors used to deliver simultaneous position measurements in the X,Y directions of the monitored object, and the second one in which the interferometric technique, i.e. the Frequency Scanning Interferometry (FSI), is proposed. Two laboratory prototypes for both components of the system were built and the preliminary measurements of the DUT displacements demonstrated their utility in the design of the final alignment system. The alignment of the LumiCal detector will allow us to monitor the detector displacements and possible deformations in its internal structure. Lack of information of the displacements will introduce a systematic effect which will have an impact on the accuracy of the fi...

  19. MODIFICACIONES DE LAS PROPIEDADES TEXTURALES Y ESTRUCTURALES DE UNA ZEOLITA USY Y DE SUS MEZCLAS CON "CAOLÍN CLAY" Y CLORHIDROL COMO CONSECUENCIA DEL TRATAMIENTO HIDROTÉRMICO

    Directory of Open Access Journals (Sweden)

    Yazmin Yaneth Agamez Pertuz

    2008-03-01

    Full Text Available El catalizador de FCC está constituido por partículas de composición compleja donde el componente activo es una zeolita Y. En este trabajo se presentan los resultados texturales y estructurales de una zeolita USY comercial lixiviada, de una serie de catalizadores con 7, 15, 25, 35 y 45% de material activo y los de estos materiales desactivados hidrotérmicamente. Las muestras se caracterizaron por fluorescencia de rayos X (FRX, difracción de rayos X (DRX, resonancia magnética nuclear de silicio (29Si RMN y fisiadsorción de nitrógeno a 77 K. A partir de estos resultados se hallaron correlaciones entre el volumen de microporo y el contenido de zeolita y entre el grado de cristalinidad y el porcentaje de zeolita. Además, se encontró que un tratamiento con sólo 20% de vapor de agua a 1033 K durante 16 horas destruye los grupos estructurales Si(2Al y Si(3Al como reflejo de la dealuminización drástica que sufre el material. 

  20. Estabilização de solos com adição de cal : um estudo a respeito da reversibilidade das reações que acontecem no solo após a adição de cal

    OpenAIRE

    Azevedo, André Luis Cairo de

    2010-01-01

    Visando ampliar o conhecimento sobre a estabilização dos solos com adição de cal, este estudo pretende demonstrar que as reações do solo argiloso com cal podem ser reversíveis. Esta análise simula uma mistura de solo e cal sendo executada inicialmente numa usina, quando do início da obra, antes mesmo da terraplenagem concluída, armazenada durante um período de tempo determinado e posteriormente sendo executada como camada de pavimento. Para isso foram feitos moldados corpos de prova com amost...

  1. Remoción de Fe y Mn en aguas naturales por adsorción-oxidación sobre clinoptilolita

    Directory of Open Access Journals (Sweden)

    Carolina Cuchimaque Lugo

    2013-01-01

    Full Text Available En el presente trabajo de investigación se comprueba la eficiencia en la remoción de Fe y Mn de aguas naturales por el empleo de un medio adsorbente que consiste de zeolita natural (clinoptilolita, recubierta con Fe 2O3 y MnO2 a partir de FeCl3 y MnSO4, respectivamente. La zeolita por su gran capacidad de intercambio de cationes es un excelente soporte de estos óxidos. El mecanismo de la remoción es por adsorción-oxidación de estos metales sobre la superficie de la capa de óxido que cubre el grano de zeolita. En las pruebas de remoción mediante un sistema de filtración se estudiaron las variables pH, concentraciones de Fe y Mn, caudal en el a fluente y altura de la capa de la zeolita, resultando las dos últimas ser las de mayor relevancia en la remoción. Se utilizaron concentraciones de 1,0-7,0 mg/L para Fe y de 0,5-3,0 mg/L para Mn, en un rango de pH de 6,0-8,0. La eficiencia de la remoción disminuye con el aumento en la concentración de Fe, especialmente a valores de pH altos (> 7,5, por la formación de precipitados de Fe2O3 causando aceleración en la saturación del medio. No se obtuvo una diferencia significativa sobre la remoción con el empleo de los dos tipos de recubrimiento, aunque a altas concentraciones de estos metales, con la capa de Fe 2O3 se obtuvieron porcentajes de remoción un poco mayores, pero la desventaja es que con este tipo de óxido se obtuvo menor corrida de los filtros por la saturación del medio.

  2. DOSAR/CalLab Operations Manual

    International Nuclear Information System (INIS)

    Bogard, J.S.

    2000-01-01

    The Life Sciences Division (LSD) of Oak Ridge National Laboratory (ORNL) has a long record of radiation dosimetry research, primarily using the Health Physics Research Reactor (HPRR) and the Dosimetry Applications Research (DOSAR) Program Calibration Laboratory (CalLab), referred to formerly as the Radiation Calibration Laboratory. These facilities have been used by a broad segment of the research community to perform a variety of experiments in areas including, but not limited to, radiobiology, radiation dosimeter and instrumentation development and calibration, and the testing of materials in a variety of radiation environments

  3. TileCal TDAQ/DCS communication

    CERN Document Server

    Solans, C; Arabidze, G; Carneiro Ferreira, B; Sotto-Maior Peralva, B

    2007-01-01

    This document describes the communication between the TDAQ and DCS systems of the Hadronic Tile Calorimeter detector of the ATLAS experiment, currently under commissioning phase at CERN. It is a further step on the TDAQ and DCS communication for TileCal operation. The aim of the implementation is to increase the robustness and understanding of the detector from the two systems involved. The basic principle observed is that the two systems operate independently in parallel. Hence, the knowledge of the status of the whole detector from each of the two systems is required for further analysis of the archived data.

  4. Zeolites of the Valle Central of Costa Rica and its outskirts; Zeolitas del Valle Central de Costa Rica y sus alrededores

    Energy Technology Data Exchange (ETDEWEB)

    Zeledon, Luis Alonso [Moravia, San Jose, (Costa Rica)

    2004-12-15

    19 different species of zeolites have been found in 25 outcrops in the Valle Central of Costa Rica and in the Siquirres region. All the zeolites are secondary minerals and crystallized in little veins and vesicles of the basalts and pyroclastics rocks of the La Cruz and Grifo Alto formations, belonging to the Aguacate Group and the alkaline igneous rocks of Guayacan. The most frequent species of zeolites are stibnite, chabasite, laumontite, mesolite/mordenite, thomsonite, and analcime. Natrolite only was found near to Siquirres. (Author) [Spanish] Se describen 19 especies diferentes de zeolitas procedentes de 25 afloramientos en los alrededores del Valle Central de Costa Rica y en la region de Siquirres. Todas las zeolitas descritas son de origen secundario y se presentan en vetillas y vesiculas de los basaltos y rocas piroclasticas de las formaciones La Cruz y Grifo Alto del Grupo Aguacate y en las rocas igneas alcalinas de Guayacan. Las especies mas frecuentes son estilbita, chabasita, laumontita, mesolita/modernita, thomsonita y analcima. La natrolita solo se encontro en los alrededores de Siquirres. (Autor)

  5. Simulación físico-matemática del secado de la zeolita con microondas. // Physical-mathematical simulation of the zeolite drying with microwaves.

    Directory of Open Access Journals (Sweden)

    G. Quesada Ramos

    2004-01-01

    Full Text Available Se realiza una simulación físico-matemática del secado de la zeolita sometida a radiaciones de microondas utilizando la leyde Lambert. Las ecuaciones se expresan en un esquema implícito unidimensional, y se emplea el método numérico dediferencias finitas. La solución del sistema de ecuaciones se realiza por medio del método iterativo de Gauss-Seidel. Losresultados teóricos se comparan con los obtenidos experimentalmente.Palabras claves: Simulación, secado, zeolita, microondas._______________________________________________________________________________AbstractA physical-mathematical simulation of the zeolite drying with microwaves using the Lambert`s law is made. The equationsare expressed in an unidimensional implicit scheme, and the finite differences numeric method is used. The solution of theequations system is carried out by using the Gauss-Seidel´s iterativ method. The theoretical results are compared with thoseexperimentally obtained.Key words: Physical-mathematical simulation, drying, zeolite, microwaves.

  6. INTCAL09 AND MARINE09 RADIOCARBON AGE CALIBRATION CURVES, 0-50,000 YEARS CAL BP

    NARCIS (Netherlands)

    Reimer, P. J.; Baillie, M. G. L.; Bard, E.; Bayliss, A.; Beck, J. W.; Blackwell, P. G.; Ramsey, C. Bronk; Buck, C. E.; Burr, G. S.; Edwards, R. L.; Friedrich, M.; Grootes, P. M.; Guilderson, T. P.; Hajdas, I.; Heaton, T. J.; Hogg, A. G.; Hughen, K. A.; Kaiser, K. F.; Kromer, B.; McCormac, F. G.; Manning, S. W.; Reimer, R. W.; Richards, D. A.; Southon, J. R.; Talamo, S.; Turney, C. S. M.; van der Plicht, J.; Weyhenmeye, C. E.; Weyhenmeyer, C.E.

    2009-01-01

    The IntCal04 and Marine04 radiocarbon calibration curves have been updated from 12 cal kBP (cal kBP is here defined as thousands of calibrated years before AD 1950), and extended to 50 cal kBP, utilizing newly available data sets that meet the IntCal Working Group criteria for pristine corals and

  7. Finished Genome Sequence of Collimonas arenae Cal35

    NARCIS (Netherlands)

    Wu, Je-Jia; de Jager, Victor; Deng, Wen-ling; Leveau, Johan

    2015-01-01

    We announce the finished genome sequence of soil forest isolate Collimonas arenae Cal35, which comprises a 5.6-Mbp chromosome and 41-kb plasmid. The Cal35 genome is the second one published for the bacterial genus Collimonas and represents the first opportunity for high-resolution comparison of

  8. An Interaction of Screen Colour and Lesson Task in CAL

    Science.gov (United States)

    Clariana, Roy B.

    2004-01-01

    Colour is a common feature in computer-aided learning (CAL), though the instructional effects of screen colour are not well understood. This investigation considers the effects of different CAL study tasks with feedback on posttest performance and on posttest memory of the lesson colour scheme. Graduate students (n=68) completed a computer-based…

  9. Fornecimento de cálcio para plantas de eucalyptus saligna por meio de aplicação de resíduo industrial lama de cal

    OpenAIRE

    Simonete,Marcia Aparecida; Chaves,Djalma Miler; Teixeira,Claudia Fernanda Almeida; Moro,Leticia; Neves,Cíntia Urbano

    2013-01-01

    O resíduo industrial lama de cal, originado da produção de papel kraft branqueada de eucalipto, apresenta em sua composição quantidade considerável de cálcio (Ca), o que pode contribuir para reduzir o consumo de fertilizantes em plantios florestais. Com o objetivo de avaliar o efeito da lama de cal como fonte de Ca e seus efeitos sobre a disponibilidade de nutrientes e produção de matéria seca da parte aérea de plantas de eucalipto, foram conduzidos dois ensaios em vasos, em casa de vegetação...

  10. Beam Tests of a Multilayer LumiCal Prototype

    CERN Document Server

    Borysov, O

    2018-01-01

    LumiCal is a sampling electromagnetic calorimeter designed for the precise measurement of in- tegrated luminosity in electron positron linear collider experiments. The present report contains a description and results of the first beam test of a multilayer LumiCal prototype with four sili- con detector planes. A 5 GeV electron beam from the CERN PS T9 facility was used to study the performance of the LumiCal prototype. Presented results are mainly focused on the trans- verse structure of the observed electromagnetic shower and the Molière radius measurement. A comparison with MC simulation is also discussed.

  11. CalCOFI Larvae Counts, Scientific Names CI to CO

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  12. CalCOFI Larvae Counts, Scientific Names DH to EC

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  13. CalCOFI Larvae Counts, Scientific Names TF to U

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  14. CalCOFI Larvae Counts, Scientific Names HJ to ID

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  15. CalCOFI Larvae Counts, Scientific Names AN to AR

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  16. CalCOFI Larvae Counts, Scientific Names SJ to ST

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  17. CalCOFI Larvae Counts, Scientific Names CP to DE

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  18. CalCOFI Larvae Counts, Scientific Names C to CE

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  19. CalCOFI Larvae Counts, Scientific Names EV to GN

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  20. CalCOFI Larvae Counts, Scientific Names V to Z

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  1. CalCOFI Larvae Counts, Scientific Names ED to EU

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  2. CalCOFI Larvae Counts, Scientific Names SD to SI

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  3. California Cooperative Oceanic Fisheries Investigations (CalCOFI)Database

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This database contains icthyoplankton data collected as part of the California Cooperative Oceanic Fisheries Investigations (CalCOFI) program and other cruises...

  4. CalCOFI Larvae Counts, Scientific Names MB to MO

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  5. CalCOFI Larvae Counts, Scientific Names LJ to MA

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  6. CalCOFI Larvae Counts, Scientific Names AS to BA

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  7. CalCOFI Larvae Counts, Scientific Names SB to SC

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  8. CalCOFI Larvae Counts, Scientific Names MP to NA

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  9. CalCOFI Larvae Counts, Scientific Names SU to TE

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  10. CalCOFI Larvae Counts, Scientific Names PL to PO

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  11. CalCOFI Larvae Counts, Scientific Names IE to LA

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  12. CalCOFI Larvae Counts, Scientific Names A to AM

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  13. CalCOFI Larvae Counts, Scientific Names HB to HI

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  14. CalCOFI Larvae Counts, Scientific Names OM to OX

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  15. CalCOFI Larvae Counts, Scientific Names Q to SA

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  16. CalCOFI Larvae Counts, Scientific Names PP to PZ

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  17. CalCOFI Larvae Counts, Scientific Names GO to HA

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  18. CalCOFI Larvae Counts, Scientific Names NB to OL

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  19. CalCOFI Larvae Counts, Scientific Names LB to LI

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  20. CalCOFI Larvae Counts, Scientific Names BCE to BZ

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  1. CalCOFI Larvae Counts, Scientific Names CD to CH

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  2. ' "~w.ith ~a'~nd"Atypz'cal Features

    African Journals Online (AJOL)

    2006-09-11

    }? While there have been reports of ' this syndrome from ' Ibadan,' the exact incidence 1\\_Iigeria is It probably rare but it is alsoylikely that 'some. cases are missed in chm', 'cal due to poor awareness -and constraints' '.

  3. CalCOFI Larvae Counts, Scientific Names OY to PI

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish larvae counts and standardized counts for larvae captured in CalCOFI icthyoplankton nets (primarily vertical [Calvet or Pairovet], oblique [bongo or ring nets],...

  4. On the correspondence between CAL and lagged cohort life expectancy

    Directory of Open Access Journals (Sweden)

    Michel Guillot

    2011-04-01

    Full Text Available It has been established that under certain mortality assumptions, the current value of the Cross-sectional Average length of Life (CAL is equal to the life expectancy for the cohort currently reaching its life expectancy. This correspondence is important, because the life expectancy for the cohort currently reaching its life expectancy, or lagged cohort life expectancy (LCLE, has been discussed in the tempo literature as a summary mortality measure of substantive interest. In this paper, we build on previous work by evaluating the extent to which the correspondence holds in actual populations. We also discuss the implications of the CAL-LCLE correspondence (or lack thereof for using CAL as a measure of cohort life expectancy, and for understanding the connection between CAL, LCLE, and underlying period mortality conditions.

  5. Cal Poly Apparel Manufacturing Demonstration - Year 3 Final Technical Report

    National Research Council Canada - National Science Library

    2000-01-01

    .... Since the Southern California apparel industry is primarily small businesses producing low volume fashion products, the Cal Poly Demo factory needed to reflect the size and capability of its customer...

  6. El Uso de cal para salvar muros de fortificaciones como un legado de la Arquitectura Militar de la Colonia

    Directory of Open Access Journals (Sweden)

    Walter Domínguez Vega

    2009-01-01

    Full Text Available Se aborda el uso de la cal en la restauración y conservación de las fortificaciones de la línea defensiva Holguin ¿Gibara. Se basa en la tendencia actual para la conservación sostenible de los bienes patrimoniales y culturales que orienta los materiales utilizados en los trabajos de intervención, se detiene sobre la relevancia y alcance histórico cultural del patrimonio fortificado en la provincia de Holguín, describe las características constructivas de sus muros, los morteros utilizados y las dificultades para la conservación de estas. Propone que se revitalice el uso de la cal en obras de conservación.

  7. Marine04 marine radiocarbon age calibration, 0-26 cal kyr BP

    NARCIS (Netherlands)

    Hughen, Konrad A.; Baillie, Mike G.L.; Bard, Edouard; Beck, J. Warren; Bertrand, Chanda J.H.; Blackwell, Paul G.; Buck, Caitlin E.; Burr, George S.; Cutler, Kirsten B.; Damon, Paul E.; Edwards, Richard L.; Fairbanks, Richard G.; Friedrich, Michael; Guilderson, Thomas P.; Kromer, Bernd; McCormac, Gerry; Manning, Sturt; Bronk Ramsey, Christopher; Reimer, Paula J.; Reimer, Ron W.; Remmele, Sabine; Southon, John R.; Stuiver, Minze; Talamo, Sahra; Taylor, F.W.; Plicht, Johannes van der; Weyhenmeyer, Constanze E.

    2004-01-01

    New radiocarbon calibration curves, IntCal04 and Marine04, have been constructed and internationally ratified to replace the terrestrial and marine components of IntCal98. The new calibration data sets extend an additional 2000 yr, from 0–26 cal kyr BP (Before Present, 0 cal BP = AD 1950), and

  8. Estudio del mortero de pega usado en el cantón Cuenca. Propuesta de mejora, utilizando adiciones de cal

    OpenAIRE

    González de la Cadena, José Fernando

    2016-01-01

    Esta investigación trata sobre el mortero de pega de mampostería, se estudia los materiales que lo componen, luego las propiedades del mortero de cemento-arena con dosificaciones similares a las de obra y un similar en condiciones de laboratorio, seguido se definen diferentes morteros de cemento-cal-arena. Con todos los morteros se realizan los mismos ensayos, en estado plástico los de: plasticidad, contenido de aire, retención de agua, y en el estado endurecido la resistencia a compresión. A...

  9. Progress Report on an Ultra-compact LumiCal

    CERN Document Server

    Borysov, O

    2018-01-01

    A new design of a detector module of submillimeter thickness for an electromagnetic calorimeter is presented. It is aimed to be used in the luminometers LumiCal and BeamCal in future linear e+e− collider experiments. The module prototypes were produced utilizing novel connectivity schemes technologies. They are installed in a compact prototype of the calorimeter and tested at DESY with an electron beam of 1 GeV – 6 GeV. The performance of eight detector modules and the possibility of electron and photon identification is studied.

  10. Reseña: Sénécal, Gilles (director). L’espace-temps métropolitain: Forme et représentations de la région de Montréal

    OpenAIRE

    Jhon Williams Montoya

    2014-01-01

    Bajo la dirección de Gilles Sénécal, conocido investigador del INRS (Institut National de la Recherche Scientifique), este libro presenta quince artículos sobre la metropolización de Montreal, derivados de las actividades investigativas de científicos del Instituto, y en el que se incorporan los resultados de varios trabajos de posgrado.

  11. Evaluación de la eficiencia de una batería de filtros empacados en zeolita en la remoción de metales pesados presentes en un licor mixto bajo condiciones de laboratorio

    OpenAIRE

    Acevedo Cifuentes, Diana Rocío; Builes Felizzola, Sandra Milena; Ordóñez Ante, Carlos Andrés; López Sánchez, Idalia Jacqueline

    2011-01-01

    En este artículo se muestran resultados de investigación obtenidos en la remoción de los metales pesados, plomo, níquel, cromo, cadmio y mercurio, presentes en una solución compuesta por licor mixto proveniente de la planta de tratamiento de aguas residuales de San Fernando y una solución preparada con metales pesados con una concentración conocida, mediante el uso de una batería de filtros empacados en zeolita clinoptilolita. La experimentación se desarrolló bajo condiciones controladas de c...

  12. Estudio del comportamiento agronómico de las zeolitas en la fertilización del cultivo de la sandía (citrullus vulgaris) en la zona de taura, Guayas

    OpenAIRE

    Idrovo, Jorge; Quilambaqui, Miguel

    2009-01-01

    Con el fin de evaluar el comportamiento y efecto de las zeolitas en la producción del cultivo de la sandía, se realizó un estudio agronómico en la zona de Taura, Guayas, Ecuador, donde se instaló un ensayo de campo, en un área experimental de 3300 m2. El diseño que se aplicó en este estudio fue de un Bloques Completos al Azar (DBCA), conformado por 7 tratamientos y 4 repeticiones, con un total de 28 unidades experimentales. Los tratamientos a evaluarse, fueron dosis total de fertilizantes con...

  13. CALS - what are the potentials for SME’s ?

    DEFF Research Database (Denmark)

    Bilberg, Arne; Thomsen, Finn Tang; Larsen, Michael Holm

    1997-01-01

    the potentials for improvingbusiness processes by effective information management. The threecompanies involved will demonstrate practical and innovativeapplications of CALS solutions, that will serve as examples for awide variety of SMEs. The paper will focus on the industrial results and the CALSengineering...

  14. Impact of CALS on Electronic Publishing Systems and Users.

    Science.gov (United States)

    Beazley, William G.

    1990-01-01

    The U.S. Department of Defense has begun using its buying power to enforce standards on the vendors and contractors of automatic data processing hardware and software. An example of this, the Computer-Aided Acquisition and Logistic Support (CALS) program, is described, and how it will affect electronic publishing systems is discussed. (five…

  15. ATLAS TileCal Read Out Driver production

    International Nuclear Information System (INIS)

    Valero, A; Abdallah, J; Castillo, V; Cuenca, C; Ferrer, A; Fullana, E; Gonzalez, V; Higon, E; Poveda, J; Ruiz-MartInez, A; Saez, M A; Salvachua, B; SanchIs, E; Solans, C; Valls, J A

    2007-01-01

    The production tests of the 38 ATLAS TileCal Read Out Drivers (RODs) are presented in this paper. The hardware specifications and firmware functionality of the RODs modules, the test-bench and the test procedure to qualify the boards are described. Finally the performance results, the temperature studies and high rate tests are shown and discussed

  16. Dijk- en oeverval aan den cal. Willem Annapolder (Gem. Kapelle)

    NARCIS (Netherlands)

    Verhagen, H.J.

    1936-01-01

    Foto's van de aanleg van de dijk- en oeverval aan den cal. Willem Annapolder (Gem. Kapelle) 3. Linkerhelft dijkval Willem Annapolder. 30 Dec. 1936 4. Rechtehelft dijkval Willem Annapolder. 30 Dec. 1936 5. Overzicht dijkval Willem Annaolder. 30 Dec. 1936 6. Kleikisting binnendijks aangebacht. 14/15

  17. IntCal13 and Marine13 Radiocarbon Age Calibration Curves 0–50,000 Years cal BP

    NARCIS (Netherlands)

    Reimer, Paula J.; Bard, Edouard; Bayliss, Alex; Beck, J. Warren; Blackwell, Paul G.; Bronk Ramsey, Christopher; Buck, Caitlin E.; Cheng, Hai; Edwards, R. Lawrence; Friedrich, Michael; Grootes, Pieter M.; Guilderson, Thomas P.; Haflidason, Haflidi; Hajdas, Irka; Hatté, Christine; Heaton, Timothy J.; Hoffmann, Dirk L.; Hogg, Alan G.; Hughen, Konrad A.; Kaiser, K. Felix; Kromer, Bernd; Manning, Sturt W.; Niu, Mu; Reimer, Ron W.; Richards, David A.; Scott, E. Marian; Southon, John R.; Staff, Richard A.; Turney, Christian S.M.; Plicht, Johannes van der; Reimer, Paula J.

    2013-01-01

    The IntCal09 and Marine09 radiocarbon calibration curves have been revised utilizing newly available and updated data sets from C-14 measurements on tree rings, plant macrofossils, speleothems, corals, and foraminifera. The calibration curves were derived from the data using the random walk model

  18. CALS Baseline Architecture Analysis of Weapons System. Technical Information: Army, Draft. Volume 8

    Science.gov (United States)

    1989-09-01

    This effort was performed to provide a common framework for analysis and planning of CALS initiatives across the military services, leading eventually to the development of a common DoD-wide architecture for CALS. This study addresses Army technical ...

  19. Windows Calorimeter Control (WinCal) program computer software design description

    International Nuclear Information System (INIS)

    Pertzborn, N.F.

    1997-01-01

    The Windows Calorimeter Control (WinCal) Program System Design Description contains a discussion of the design details for the WinCal product. Information in this document will assist a developer in maintaining the WinCal system. The content of this document follows the guidance in WHC-CM-3-10, Software Engineering Standards, Standard for Software User Documentation

  20. Efecto de la restricción calórica en la composición corporal, la estructura muscular y la eficiencia de la cadena respiratoria mitocondrial en el deportista

    OpenAIRE

    Pons Sala, Victoria

    2017-01-01

    [spa]Introducción: Se propone trabajar sobre un modelo de Restricción Calórica (RC) o Dieta del Ayuno Intermitente o Intermitent Fasting Diet, que consideramos una buena opción para perder peso en determinadas circunstancias e individuos. Se considera RC cuando establecen periodos intemitentes de 16-48h de ayuno o de restricción del 30 al 60% del contenido calórico, respecto a la ingesta habitual, que por otra parte se mantiene sin modificaciones entre estos periodos. Estudios recientes en ...

  1. Utilización de la zeolita para disminuir los gases tóxicos de los motores de combustión interna. // The utilization of Cuban zeolites in the decrease of toxic gases emissions of internal combustion engines.

    Directory of Open Access Journals (Sweden)

    J. L. Reyes González

    2003-01-01

    Full Text Available En el trabajo se presentan los resultados obtenidos al utilizar la zeolita natural cubana para la disminución de los gasestóxicos que los motores de combustión interna MCI. envían a la atmósfera. Los experimentos fueron realizados en bancosde pruebas de MCI. tanto para motores de carburación como para motores diesel. Obteniéndose eficiencias de disminucióndel CO del 80 %, del CnHm del 50% y el humo negro en un 90%. Se demuestra la importancia de la granulometría de lazeolita para esta eliminación y para mantener la potencia del motor dentro de rangos aceptables.Palabras claves: Toxicidad, zeolita, medio ambiente, filtros, gases de escape._______________________________________________________________________________Abstract.In this paper are presented the results of the utilization of Cuban zeolites in the decrease of toxic gas emissions toatmosphere of internal combustion engines, (MCI. The experiments were carried out in test bank for gasoline and dieselengines. The efficiency in the decrement of CO was of 80%, CnHm in 50%, and 90 % in soot. The size of the zeolitesparticle importance in the efficiency is demonstrated.Key words: Toxicity, zeolite, enviroment, filters, gas emissions.

  2. Laser measurement of the LumiCal detector displacement

    International Nuclear Information System (INIS)

    Blocki, J.; Daniluk, W.; Gil, M.; Karbowiak, M.; Moszczynski, A.; Oliwa, K.; Pawlik, B.; Wierba, W.; Zawiejski, L.; Slominski, W.; Suszycki, L.

    2006-12-01

    The silicon-tungsten calorimeter LumiCal, located in very forward region of the future detector at the International Linear Collider, is proposed for precisely luminosity measurement. One of the requirements to fulfil this task is available information on the actual position of the calorimeter relative to the beam interaction area which should be known with accuracy of a few micrometers. In this paper we discuss the possible solutions for the positioning of the LumiCal electron detector by optical method. The results of the displacement measurement using a laser beam and a CCD camera are described. The measurements were performed on a proof-of-principle basis and achieved the accuracy of about ± 1 μm in x, y and ± μm in z direction. (author)

  3. Diferencias y similitudes entre morteros de cal hidráulica y morteros mixtos de cal área y cemento portland

    OpenAIRE

    Peñaranda García, Pilar

    2012-01-01

    En el presente trabajo se estudian el mortero de cal hidráulica y el mortero mixto de cal aérea y cemento Portland, siendo este último el más utilizado en la actualidad, ya que la cal ha pasado a un segundo plano en la construcción debido a los grandes avances en la producción de cemento a lo largo del siglo XX. Estos avances han desplazado a la cal, un material utilizado desde hace milenios, olvidando su alta resistencia al paso del tiempo, cuya prueba es el gran volumen de ...

  4. CalSimHydro Tool - A Web-based interactive tool for the CalSim 3.0 Hydrology Prepropessor

    Science.gov (United States)

    Li, P.; Stough, T.; Vu, Q.; Granger, S. L.; Jones, D. J.; Ferreira, I.; Chen, Z.

    2011-12-01

    CalSimHydro, the CalSim 3.0 Hydrology Preprocessor, is an application designed to automate the various steps in the computation of hydrologic inputs for CalSim 3.0, a water resources planning model developed jointly by California State Department of Water Resources and United States Bureau of Reclamation, Mid-Pacific Region. CalSimHydro consists of a five-step FORTRAN based program that runs the individual models in succession passing information from one model to the next and aggregating data as required by each model. The final product of CalSimHydro is an updated CalSim 3.0 state variable (SV) DSS input file. CalSimHydro consists of (1) a Rainfall-Runoff Model to compute monthly infiltration, (2) a Soil moisture and demand calculator (IDC) that estimates surface runoff, deep percolation, and water demands for natural vegetation cover and various crops other than rice, (3) a Rice Water Use Model to compute the water demands, deep percolation, irrigation return flow, and runoff from precipitation for the rice fields, (4) a Refuge Water Use Model that simulates the ponding operations for managed wetlands, and (5) a Data Aggregation and Transfer Module to aggregate the outputs from the above modules and transfer them to the CalSim SV input file. In this presentation, we describe a web-based user interface for CalSimHydro using Google Earth Plug-In. The CalSimHydro tool allows users to - interact with geo-referenced layers of the Water Budget Areas (WBA) and Demand Units (DU) displayed over the Sacramento Valley, - view the input parameters of the hydrology preprocessor for a selected WBA or DU in a time series plot or a tabular form, - edit the values of the input parameters in the table or by downloading a spreadsheet of the selected parameter in a selected time range, - run the CalSimHydro modules in the backend server and notify the user when the job is done, - visualize the model output and compare it with a base run result, - download the output SV file to be

  5. Chemical and Physical Properties of Hi-Cal-2

    Science.gov (United States)

    Spakowski, A. E.; Allen, Harrison, Jr.; Caves, Robert M.

    1955-01-01

    As part of the Navy Project Zip to consider various boron-containing materials as possible high-energy fuels, the chemical and physical properties of Hi-Cal-2 prepared by the Callery Chemical Company were evaluated at the NACA Lewis laboratory. Elemental chemical analysis, heat of combustion, vapor pressure and decomposition, freezing point, density, self ignition temperature, flash point, and blow-out velocity were determined for the fuel. Although the precision of measurement of these properties was not equal to that obtained for hydrocarbons, this special release research memorandum was prepared to make the data available as soon as possible.

  6. CryoSat/SIRAL Cal1 Calibration Orbits

    Science.gov (United States)

    Scagliola, Michele; Fornari, Marco; Bouffard, Jerome; Parrinello, Tommaso

    2017-04-01

    The main payload of CryoSat is a Ku band pulsewidth limited radar altimeter, called SIRAL (Synthetic interferometric radar altimeter), that transmits pulses at a high pulse repetition frequency thus making the received echoes phase coherent and suitable for SAR processing. This allows to reach an along track resolution that is significantly improved with respect to traditional pulse-width limited altimeters. Due to the fact that SIRAL is a phase coherent pulse-width limited radar altimeter, a proper calibration approach has been developed. In fact, not only corrections for transfer function, gain and instrument path delay have to be computed (as in previous altimeters), but also corrections for phase (SAR/SARIn) and phase difference between the two receiving chains (SARIN only). Recalling that the CryoSat's orbit has a high inclination of 92° and it is non-sun-synchronous, the temperature of the SIRAL changes continuously along the orbit with a period of about 480 days and it is also function of the ascending/descending passes. By analysis of the CAL1 calibration corrections, it has been verified that the internal path delay and the instrument gain variation measured on the SIRAL are affected by the thermal status of the instrument and as a consequence they are expected to vary along the orbit. In order to gain knowledge on the calibration corrections (i.e. the instrument behavior) as function of latitude and temperature, it has been planned to command a few number of orbits where only CAL1 calibration acquisitions are continuously performed. The analysis of the CAL1 calibration corrections produced along the Calibration orbits can be also useful to verify whether the current calibration plan is able to provide sufficiently accurate corrections for the instrument acquisitions at any latitude. In 2016, the CryoSat/SIRAL Cal1 Calibration Orbits have been commanded two times, a first time the 20th of July 2016 and a second time the 24th of November 2016, and they

  7. ATLAS TileCal LVPS Upgrade Hardware and Testing

    CERN Document Server

    Hibbard, Michael James; The ATLAS collaboration; Hadavand, Haleh Khani

    2018-01-01

    UTA (University of Texas at Arlington) has been designing and producing new testing stations to ensure the reliability and quality of new TileLVPS (Low Voltage Power Supplies), also produced at UTA, which will power the next generation of upgraded hardware in the TileCal (Tile Calorimeter) system of ATLAS at CERN. UTA has produced two new types of testing stations, which build upon the previous generation of testing stations used in the initial production of the TileCal system. The first station is the Initial Test Station, and quickly quantifies a multitude of performance metrics of a LVPS. We have developed our own PC based program which graphically display and records onto file these metrics. A few notable metrics we are measuring are the system clock and its jitter. Excessive clock jitter in LVPS can affect system stability and derate the working range of the system duty cycle. This station also verifies protection circuitry of LVPS, which protects it from over temperature, current and voltage. The second...

  8. ATLAS TileCal submodule B-field measurement

    International Nuclear Information System (INIS)

    Budagov, Yu.A.; Fedorenko, S.B.; Kalinichenko, V.V.; Lomakin, Yu.F.; Vorozhtsov, S.B.; Nessi, M.

    1997-01-01

    The work was done to cross check of the previous measurement done at CERN and to simulate the magnetic structure in the vicinity of the symmetry plane of the TileCal. To perform magnetic measurements for submodule the magnet E2 was chosen. The magnetometer used in the magnetic test of the submodule consists of Hall current supply and Hall voltage measuring device. The indium antimonide Hall probe used in this measurement is a model PKhE 606. Experimental set-up provides a true measurement accuracy of order ± 1%. External magnetic field measurements were conducted at the outer surface of the submodule. Two levels of the external field were applied: 108 Gs and 400 Gs. The result of this measurement in general confirms the data, obtained at CERN, but the shielding capability of the submodule under consideration was ∼ 20% higher than there. The field at the tile location is < 150 Gs up to the external field level 500 Gs and the tile field grows much less than the external field level in this range. The data obtained in this measurement could be used as a benchmark when producing a computer model of the TileCal magnetic field distribution

  9. Determinación de parámetros físicos aplicables en el escalamiento de la síntesis de zeolita NaA, a partir de geles aluminosilicatos

    OpenAIRE

    Carmen M. López; Adriana García; Miguel Ríos; Neyla Rondón; Luis García; Johliny Casanova; Kevin Contreras

    2016-01-01

    Se estudió el efecto de parámetros físicos que influyen en la preparación de la zeolita NaA, a fin de determinar condiciones favorables para realizar el escalamiento de esta síntesis. Partiendo de una mezcla de síntesis con composición fija y cristalización a 80 °C se estudiaron los siguientes parámetros: orden y velocidad de agregado de las soluciones de partida, velocidad y tiempo de agitación de la mezcla de síntesis, agitación durante la cristalización, tiempo de cristalización y reciclo ...

  10. Estrategias de desarrollo para la empresa Cal del Centro S.A.C.

    OpenAIRE

    Bautista Antón, Yovanni Patricia; Mendoza Rojas, Miguel Ángel

    2015-01-01

    Cal del Centro S.A.C. es una sociedad anónima cerrada cuyo negocio gira en torno a la actividad económica de la fabricación de cemento, cal y yeso. El objetivo del presente trabajo es evaluar la posibilidad de éxito de un proyecto de inversión en una planta de cal, a través de Cal del Centro S.A.C. –como empresa autosuficiente–, para asegurar el cien por ciento del suministro de óxido de calcio en cantidad y calidad para el procesamiento de concentrados de cobre y el tratamiento de aguas indu...

  11. Análisis del tratamiento ideal usando baños termotratados para la separación de cal de los residuos de descarne en curtiembres

    Directory of Open Access Journals (Sweden)

    Yelitza Aguas Mendoza

    2016-07-01

    Full Text Available Se analizó el tratamiento ideal usando baños termotratados para la separación de cal de los residuos de descarne, del proceso de curtición semiartesanal desarrollado en Sampués, Departamento de Sucre (Colombia. Para su desarrollo se seleccionó una muestra de carnaza representativa, homogénea y con menos tiempo de almacenamiento. Dicha muestra se redujo al tamaño de 1 cm2 y se conservó refrigerada para posteriormente realizar los análisis de grasa, pH y presencia de cal. Los baños termotratados de desencalado se realizaron a tres temperaturas diferentes (26, 30 y 35 ºC. Se utilizó como agente desencalante el acido sulfúrico en tres concentraciones (3, 2 y 1 N. Además se usó un sistema de agitación simulando el bombo en proceso industrial. Se llevaron a cabo nueve pruebas con tres repeticiones para mayor confiabilidad de los datos, en donde se determinó la correlación existente entre las variables independientes, temperatura y concentración, sobre la cal impregnada y los resultados de grasa en cada una de las muestras en un tiempo de 4 y 8 h.

  12. Data Management Standards in Computer-aided Acquisition and Logistic Support (CALS)

    Science.gov (United States)

    Jefferson, David K.

    1990-01-01

    Viewgraphs and discussion on data management standards in computer-aided acquisition and logistic support (CALS) are presented. CALS is intended to reduce cost, increase quality, and improve timeliness of weapon system acquisition and support by greatly improving the flow of technical information. The phase 2 standards, industrial environment, are discussed. The information resource dictionary system (IRDS) is described.

  13. The impact of BeamCal performance at different international linear ...

    Indian Academy of Sciences (India)

    The ILC accelerator parameters and detector concepts are still under discussion in the world-wide community. As will be shown, the performance of the BeamCal, the calorimeter in the very forward area of the ILC detector, is very sensitive to the beam parameter and crossing angle choices. We propose here BeamCal ...

  14. Applied CAL on Problem Based Learning Using Gagne’s Instructional Design

    Directory of Open Access Journals (Sweden)

    Sri Sundari Purbohadi

    2014-10-01

    Full Text Available Abstract— In the Problem-Based Learning (PBL model, students are expected to study independently. One of the methods that can improve the ability or skill of learners is using Computer Assisted Learning (CAL. Implementation of CAL in PBL should be able to create Self-Directed Learning (SDL culture through appropriate instructional design and interesting modules. In this paper, the CAL software is developed using multimedia learning principles, convenient appearance, and user-friendly navigation. The CAL’s learning content is designed using Gagne's instructional design. The experiment proved the CAL was able to give effect size 0.89 and developed self-directed learning culture. From the interviews, students were very glad and interested to use the CAL modules because they can learn anytime and can reach the course objectives without a lecturer.

  15. CAL--ERDA program manual. [Building Design Language; LOADS, SYSTEMS, PLANT, ECONOMICS, REPORT, EXECUTIVE, CAL-ERDA

    Energy Technology Data Exchange (ETDEWEB)

    Hunn, B. D.; Diamond, S. C.; Bennett, G. A.; Tucker, E. F.; Roschke, M. A.

    1977-10-01

    A set of computer programs, called Cal-ERDA, is described that is capable of rapid and detailed analysis of energy consumption in buildings. A new user-oriented input language, named the Building Design Language (BDL), has been written to allow simplified manipulation of the many variables used to describe a building and its operation. This manual provides the user with information necessary to understand in detail the Cal-ERDA set of computer programs. The new computer programs described include: an EXECUTIVE Processor to create computer system control commands; a BDL Processor to analyze input instructions, execute computer system control commands, perform assignments and data retrieval, and control the operation of the LOADS, SYSTEMS, PLANT, ECONOMICS, and REPORT programs; a LOADS analysis program that calculates peak (design) zone and hourly loads and the effect of the ambient weather conditions, the internal occupancy, lighting, and equipment within the building, as well as variations in the size, location, orientation, construction, walls, roofs, floors, fenestrations, attachments (awnings, balconies), and shape of a building; a Heating, Ventilating, and Air-Conditioning (HVAC) SYSTEMS analysis program capable of modeling the operation of HVAC components including fans, coils, economizers, humidifiers, etc.; 16 standard configurations and operated according to various temperature and humidity control schedules. A plant equipment program models the operation of boilers, chillers, electrical generation equipment (diesel or turbines), heat storage apparatus (chilled or heated water), and solar heating and/or cooling systems. An ECONOMIC analysis program calculates life-cycle costs. A REPORT program produces tables of user-selected variables and arranges them according to user-specified formats. A set of WEATHER ANALYSIS programs manipulates, summarizes and plots weather data. Libraries of weather data, schedule data, and building data were prepared.

  16. Composição centesimal e valor calórico de alimentos de origem animal

    Directory of Open Access Journals (Sweden)

    TORRES Elizabeth A.F.S

    2000-01-01

    Full Text Available Dados sobre composição de alimentos são importantes para inúmeras atividades, porém são escassos ou inexistentes em nosso país. O presente trabalho teve como objetivo determinar o valor calórico dos alimentos de origem animal comumente usados na dieta: carne, leite e ovos a fim de compará-los com os dados das tabelas de composição centesimal mais utilizadas por profissionais da área. Observou-se que de um modo geral, ocorrem variações entre os valores das tabelas consultadas e os analisados, sendo estes menores para ovos, seguidos de laticínios, carnes suínas, carnes bovinas e aves. Salientamos portanto, a importãncia de obtenção dados sobre a composição de alimentos condizentes com diferenças regionais do Brasil, visto que a maioria das tabelas disponíveis são compilações de dados internacionais.

  17. Control System for ATLAS TileCal HVRemote boards

    CERN Document Server

    AUTHOR|(SzGeCERN)739751; The ATLAS collaboration; Gurriana, Luis; Oleiro Seabra, Luis Filipe; Evans, Guiomar; Gomes, Agostinho; Maio, Amelia; Pinto Silva Rato, Catia Sofia; Almendra Sabino, Joao Maria; Augusto, Jose

    2017-01-01

    One of the proposed solutions for upgrading the high voltage (HV) system of TileCal, the ATLAS central hadron calorimeter, consists in removing the HV regulation boards from the detector and deploying them in a low-radiation room where there is permanent access for maintenance. This option requires many ∼100 m long HV cables but removes the requirement of radiation hard boards. This solution simplifies the control system of the HV regulation cards (called HVRemote). It consists of a Detector Control System (DCS) node linked to 256 HVRemote boards through a tree of Ethernet connections. Each HVRemote includes a smart Ethernet transceiver for converting data and commands from the DCS into serial peripheral interface (SPI) signals routed to SPI-capable devices in the HVRemote. The DCS connection to the transceiver and the control of some SPI-capable devices via Ethernet has been tested successfully. A test board (HVRemote-Ctrl) with the interfacing sub-system of the HVRemote was fabricated. It is being tested ...

  18. Design de interface do ambiente virtual HyperCAL online

    Directory of Open Access Journals (Sweden)

    Jaire Passos

    2010-12-01

    Full Text Available A presente pesquisa objetiva propor uma metodologia que oriente o projeto de interface de ambiente virtual centrado no usuário que seja sistematizada como processo de produto com princípios de design de interação, considerando aspectos de usabilidade e ergonomia, de modo a favorecer o trabalho do usuário, permitindo a apropriação do conteúdo e a execução das tarefas através das funcionalidades do sistema. Para consecução do trabalho foram investigados: os elementos da experiência do usuário; as ferramentas de planejamento de produto; as técnicas engenharia de software; e os conceitos do design de interação. A validação da metodologia foi feita através do projeto de interface do módulo do desenvolvedor (professor/instrutor do HyperCalGD online. A interface projetada apresentou melhores condições para o desenvolvimento de materiais educacionais.

  19. Terracotas del santuario de Calés (Calvi, Campania

    Directory of Open Access Journals (Sweden)

    J. M. BLÁZQUEZ

    2009-10-01

    Full Text Available El Museo Arqueológico Nacional de Madrid, entre sus magníficas colecciones, exhibe una compuesta por un numeroso conjunto de terracotas traídas de Italia en el siglo pasado por el Marqués de Salamanca. La colección Calvi, procedente del Santuario de Calés, en Campania, y así llamada del lugar de procedencia, ha sido repartida entre varios museos españoles, pero el grupo más numeroso es el depositado en el Museo Arqueológico Nacional que, a pesar de la alta calidad artística de las piezas y del buen estado de conservación de todas ellas, ha permanecido hasta el presente inédita. Tan sólo F. Benoit y nosotros, hemos publicado algunas terracotas de las que representan caballos. Otros investigadores, como Bianchi Bandinelli, han aludido a esta colección que, como las similares guardadas en los museos de Lecce, Capua, Louvre, Leide, British Museum, etc., se encuentra inédita. Particular interés ofrece el grupo conservado en la Glyptothek Ny Carlsberg, de Copenhague, algunos ejemplares se guardan en el Museo Universitario de Zurich y en el Museum f. ant. Kleinkunst de Munich. En Roma los conjuntos más numerosos de estas terracotas se encuentran depositados en los Museos Gregoriano Etrusco del Vaticano, Villa Giulia, y Nazionale Romano.

  20. Recuperación de morteros romanos de cal y chamota en aplicaciones actuales

    OpenAIRE

    González Cortina, Mariano

    2000-01-01

    La tesis se fundamenta en la utilización de residuos de fábricas cerámicas para su aprovechamiento y reutilización mediante una trituración, para posteriormente mezclarlos con cal aérea y obtener así un conglomerante capaz de fraguar, endurecer y adquirir resistencias tanto al aire como sumergido en agua. La cal, como conglomerante hidráulico, no se fabrica actualmente en España debido al uso de los cementos Pórtland. Sin embargo, las propiedades que tienen los morteros realizados con cal, co...

  1. Computer-aided acquisition and logistics support (CALS): Concept of Operations for Depot Maintenance

    Energy Technology Data Exchange (ETDEWEB)

    Bourgeois, N.C.; Greer, D.K.

    1993-04-01

    This CALS Concept of Operations for Depot Maintenance provides the foundation strategy and the near term tactical plan for CALS implementation in the depot maintenance environment. The user requirements enumerated and the overarching architecture outlined serve as the primary framework for implementation planning. The seamless integration of depot maintenance business processes and supporting information systems with the emerging global CALS environment will be critical to the efficient realization of depot user's information requirements, and as, such will be a fundamental theme in depot implementations.

  2. Implementació d'una Intranet pel Restaurant "Cal Fesu"

    OpenAIRE

    Maldonado Rubio, Lluís Manel

    2007-01-01

    Aquest projecte consisteix en el disseny i implementació d'una intranet amb zona privada pel restaurant "Cal Fesu", utilitzant una tecnologia puntera com és J2EE (struts). Este proyecto consiste en el diseño e implementación de una intranet con zona privada para el restaurante "Cal Fesu", utilizando una tecnología puntera como es J2EE (struts). This project consists of design and implementation of an intranet with a private area for the restaurant "Cal Fesu", using a leading technology ...

  3. Windows Calorimeter Control (WinCal) system configuration control board (SCCB) operating procedure

    International Nuclear Information System (INIS)

    Westsik, G.A.

    1997-01-01

    This document describes the operating procedure for the System Configuration Control Board (SCCB) performed in support of the Windows Calorimeter Control (WinCal) system. This board will consist of representatives from Babcock and Wilcox Hanford Company Babcock and Wilcox Protec, Inc.; and Lockheed Martin Services, Inc. In accordance with agreements for the joint use of the Babcock and Wilcox Hanford Company calorimeters located in the Hanford Site Plutonium Finishing Plant (PFP) Nondestructive Assay Laboratory, concurrence regarding changes to the WinCal system will be obtained from the International Atomic Energy Agency (IAEA). Further, changes to the WinCal software will be communicated to Los Alamos National Laboratory

  4. Caracterización de bentonitas y zeolitas sin tratamiento como refuerzo en materiales compuestos de matriz polimérica//Characterization of untreated zeolites and bentonites as reinforcement in polymer matrix composites

    Directory of Open Access Journals (Sweden)

    Francisco Jesús Mondelo‐García

    2014-01-01

    Full Text Available Las bentonitas con microestructuras compuestas de placas silicio aluminosas. Se logró el objetivo de caracterizar las bentonitas sódicas de Wyoming, USA, Patagonia de Argentina, nordeste de Brasil, así como las bentonitas policatiónicas de Brasil, la cálcica activada con sodio y zeolita de Cuba no organofilizadas para emplearlas como refuerzo en materiales compuestos de matriz polimérica. Estosmateriales se evaluaron usando técnicas físico-químicas como fluorescencia de rayos X, difracción de rayos X, microscopia electrónica de barrido, humedad, capacidad de intercambio catiónico, absorción e hinchabilidad en diluyente acuoso. Los resultados confirmaron rangos variables de intercambio catiónico,hinchamiento y absorciòn en agua entre las bentonitas analizadas, debido a su naturaleza química estructural en hidratación, logrando mayores valores las sódicas, luego la cálcica activada y con menor valor las policatiónicas, pero permiten usarlas como carga en polímeros.Palabras claves: bentonita, zeolita, matriz polimérica, organofilizada, materiales compuestos._____________________________________________________________________________AbstractBentonites with aluminous silicon microstructure composed of plates. The work accomplished to characterize the sodium bentonites in Wyoming USA, Patagonia Argentina, Northeast Brazil and the Brazilian polycationic bentonites, calcium-activated sodium zeolite from Cuba without organic modificationnot organophilized to employ as reinforcing in composite materials of polymer matrix. These materials were evaluated for physical and chemical assay techniques such as X-ray fluorescence, X-ray diffraction, scanning electron microscopy, moisture, cation exchange capacity, absorption and swelling aqueousdiluent. The results confirmed variables ranges of cationic exchange, swelling and water absorption from the bentonites tested, due to its chemical-structural hydration, achieving higher values nature

  5. Measurement of the ratio of branching fractions ${\\cal B}(B^0 \\to K^{\\ast 0} \\gamma)/{\\cal B}(B^0_s \\to \\phi \\gamma)$

    CERN Document Server

    Aaij, R; Adeva, B; Adinolfi, M; Adrover, C; Affolder, A; Ajaltouni, Z; Albrecht, J; Alessio, F; Alexander, M; Alkhazov, G; Alvarez Cartelle, P; Alves Jr, A A; Amato, S; Amhis, Y; Anderson, J; Appleby, R B; Aquines Gutierrez, O; Archilli, F; Arrabito, L; Artamonov, A; Artuso, M; Aslanides, E; Auriemma, G; Bachmann, S; Back, J J; Bailey, D S; Balagura, V; Baldini, W; Barlow, R J; Barschel, C; Barsuk, S; Barter, W; Bates, A; Bauer, C; Bauer, Th; Bay, A; Bediaga, I; Belogurov, S; Belous, K; Belyaev, I; Ben-Haim, E; Benayoun, M; Bencivenni, G; Benson, S; Benton, J; Bernet, R; Bettler, M -O; van Beuzekom, M; Bien, A; Bifani, S; Bird, T; Bizzeti, A; Bjørnstad, P M; Blake, T; Blanc, F; Blanks, C; Blouw, J; Blusk, S; Bobrov, A; Bocci, V; Bondar, A; Bondar, N; Bonivento, W; Borghi, S; Borgia, A; Bowcock, T J V; Bozzi, C; Brambach, T; van den Brand, J; Bressieux, J; Brett, D; Britsch, M; Britton, T; Brook, N H; Brown, H; Büchler-Germann, A; Burducea, I; Bursche, A; Buytaert, J; Cadeddu, S; Callot, O; Calvi, M; Calvo Gomez, M; Camboni, A; Campana, P; Carbone, A; Carboni, G; Cardinale, R; Cardini, A; Carson, L; Carvalho Akiba, K; Casse, G; Cattaneo, M; Cauet, Ch; Charles, M; Charpentier, Ph; Chiapolini, N; Ciba, K; Cid Vidal, X; Ciezarek, G; Clarke, P E L; Clemencic, M; Cliff, H V; Closier, J; Coca, C; Coco, V; Cogan, J; Collins, P; Comerma-Montells, A; Constantin, F; Contu, A; Cook, A; Coombes, M; Corti, G; Couturier, B; Cowan, G A; Currie, R; D'Ambrosio, C; David, P; David, P N Y; De Bonis, I; De Bruyn, K; De Capua, S; De Cian, M; De Lorenzi, F; De Miranda, J M; De Paula, L; De Simone, P; Decamp, D; Deckenhoff, M; Degaudenzi, H; Del Buono, L; Deplano, C; Derkach, D; Deschamps, O; Dettori, F; Dickens, J; Dijkstra, H; Diniz Batista, P; Domingo Bonal, F; Donleavy, S; Dordei, F; Dosil Suárez, A; Dossett, D; Dovbnya, A; Dupertuis, F; Dzhelyadin, R; Dziurda, A; Easo, S; Egede, U; Egorychev, V; Eidelman, S; van Eijk, D; Eisele, F; Eisenhardt, S; Ekelhof, R; Eklund, L; Elsasser, Ch; Elsby, D; Esperante Pereira, D; Falabella, A; Fanchini, E; Färber, C; Fardell, G; Farinelli, C; Farry, S; Fave, V; Fernandez Albor, V; Ferro-Luzzi, M; Filippov, S; Fitzpatrick, C; Fontana, M; Fontanelli, F; Forty, R; Francisco, O; Frank, M; Frei, C; Frosini, M; Furcas, S; Gallas Torreira, A; Galli, D; Gandelman, M; Gandini, P; Gao, Y; Garnier, J-C; Garofoli, J; Garra Tico, J; Garrido, L; Gascon, D; Gaspar, C; Gauld, R; Gauvin, N; Gersabeck, M; Gershon, T; Ghez, Ph; Gibson, V; Gligorov, V V; Göbel, C; Golubkov, D; Golutvin, A; Gomes, A; Gordon, H; Grabalosa Gándara, M; Graciani Diaz, R; Granado Cardoso, L A; Graugés, E; Graziani, G; Grecu, A; Greening, E; Gregson, S; Gui, B; Gushchin, E; Guz, Yu; Gys, T; Hadjivasiliou, C; Haefeli, G; Haen, C; Haines, S C; Hampson, T; Hansmann-Menzemer, S; Harji, R; Harnew, N; Harrison, J; Harrison, P F; Hartmann, T; He, J; Heijne, V; Hennessy, K; Henrard, P; Hernando Morata, J A; van Herwijnen, E; Hicks, E; Holubyev, K; Hopchev, P; Hulsbergen, W; Hunt, P; Huse, T; Huston, R S; Hutchcroft, D; Hynds, D; Iakovenko, V; Ilten, P; Imong, J; Jacobsson, R; Jaeger, A; Jahjah Hussein, M; Jans, E; Jansen, F; Jaton, P; Jean-Marie, B; Jing, F; John, M; Johnson, D; Jones, C R; Jost, B; Kaballo, M; Kandybei, S; Karacson, M; Karbach, T M; Keaveney, J; Kenyon, I R; Kerzel, U; Ketel, T; Keune, A; Khanji, B; Kim, Y M; Knecht, M; Koopman, R F; Koppenburg, P; Korolev, M; Kozlinskiy, A; Kravchuk, L; Kreplin, K; Kreps, M; Krocker, G; Krokovny, P; Kruse, F; Kruzelecki, K; Kucharczyk, M; Kvaratskheliya, T; La Thi, V N; Lacarrere, D; Lafferty, G; Lai, A; Lambert, D; Lambert, R W; Lanciotti, E; Lanfranchi, G; Langenbruch, C; Latham, T; Lazzeroni, C; Le Gac, R; van Leerdam, J; Lees, J -P; Lefèvre, R; Leflat, A; Lefrançois, J; Leroy, O; Lesiak, T; Li, L; Li Gioi, L; Lieng, M; Liles, M; Lindner, R; Linn, C; Liu, B; Liu, G; von Loeben, J; Lopes, J H; Lopez Asamar, E; Lopez-March, N; Lu, H; Luisier, J; Mac Raighne, A; Machefert, F; Machikhiliyan, I V; Maciuc, F; Maev, O; Magnin, J; Malde, S; Mamunur, R M D; Manca, G; Mancinelli, G; Mangiafave, N; Marconi, U; Märki, R; Marks, J; Martellotti, G; Martens, A; Martin, L; Martín Sánchez, A; Martinez Santos, D; Massafferri, A; Mathe, Z; Matteuzzi, C; Matveev, M; Maurice, E; Maynard, B; Mazurov, A; McGregor, G; McNulty, R; Meissner, M; Merk, M; Merkel, J; Messi, R; Miglioranzi, S; Milanes, D A; Minard, M -N; Molina Rodriguez, J; Monteil, S; Moran, D; Morawski, P; Mountain, R; Mous, I; Muheim, F; Müller, K; Muresan, R; Muryn, B; Muster, B; Musy, M; Mylroie-Smith, J; Naik, P; Nakada, T; Nandakumar, R; Nasteva, I; Nedos, M; Needham, M; Neufeld, N; Nguyen, A D; Nguyen-Mau, C; Nicol, M; Niess, V; Nikitin, N; Nikodem, T; Nomerotski, A; Novoselov, A; Oblakowska-Mucha, A; Obraztsov, V; Oggero, S; Ogilvy, S; Okhrimenko, O; Oldeman, R; Orlandea, M; Otalora Goicochea, J M; Owen, P; Pal, B K; Palacios, J; Palano, A; Palutan, M; Panman, J; Papanestis, A; Pappagallo, M; Parkes, C; Parkinson, C J; Passaleva, G; Patel, G D; Patel, M; Paterson, S K; Patrick, G N; Patrignani, C; Pavel-Nicorescu, C; Pazos Alvarez, A; Pellegrino, A; Penso, G; Pepe Altarelli, M; Perazzini, S; Perego, D L; Perez Trigo, E; Pérez-Calero Yzquierdo, A; Perret, P; Perrin-Terrin, M; Pessina, G; Petrella, A; Petrolini, A; Phan, A; Picatoste Olloqui, E; Pie Valls, B; Pietrzyk, B; Pilař, T; Pinci, D; Plackett, R; Playfer, S; Plo Casasus, M; Polok, G; Poluektov, A; Polycarpo, E; Popov, D; Popovici, B; Potterat, C; Powell, A; Prisciandaro, J; Pugatch, V; Puig Navarro, A; Qian, W; Rademacker, J H; Rakotomiaramanana, B; Rangel, M S; Raniuk, I; Raven, G; Redford, S; Reid, M M; dos Reis, A C; Ricciardi, S; Richards, A; Rinnert, K; Roa Romero, D A; Robbe, P; Rodrigues, E; Rodrigues, F; Rodriguez Perez, P; Rogers, G J; Roiser, S; Romanovsky, V; Rosello, M; Rouvinet, J; Ruf, T; Ruiz, H; Sabatino, G; Saborido Silva, J J; Sagidova, N; Sail, P; Saitta, B; Salzmann, C; Sannino, M; Santacesaria, R; Santamarina Rios, C; Santinelli, R; Santovetti, E; Sapunov, M; Sarti, A; Satriano, C; Satta, A; Savrie, M; Savrina, D; Schaack, P; Schiller, M; Schleich, S; Schlupp, M; Schmelling, M; Schmidt, B; Schneider, O; Schopper, A; Schune, M -H; Schwemmer, R; Sciascia, B; Sciubba, A; Seco, M; Semennikov, A; Senderowska, K; Sepp, I; Serra, N; Serrano, J; Seyfert, P; Shapkin, M; Shapoval, I; Shatalov, P; Shcheglov, Y; Shears, T; Shekhtman, L; Shevchenko, O; Shevchenko, V; Shires, A; Silva Coutinho, R; Skwarnicki, T; Smith, N A; Smith, E; Sobczak, K; Soler, F J P; Solomin, A; Soomro, F; Souza De Paula, B; Spaan, B; Sparkes, A; Spradlin, P; Stagni, F; Stahl, S; Steinkamp, O; Stoica, S; Stone, S; Storaci, B; Straticiuc, M; Straumann, U; Subbiah, V K; Swientek, S; Szczekowski, M; Szczypka, P; Szumlak, T; T'Jampens, S; Teodorescu, E; Teubert, F; Thomas, C; Thomas, E; van Tilburg, J; Tisserand, V; Tobin, M; Tolk, S; Topp-Joergensen, S; Torr, N; Tournefier, E; Tourneur, S; Tran, M T; Tsaregorodtsev, A; Tuning, N; Ubeda Garcia, M; Ukleja, A; Urquijo, P; Uwer, U; Vagnoni, V; Valenti, G; Vazquez Gomez, R; Vazquez Regueiro, P; Vecchi, S; Velthuis, J J; Veltri, M; Viaud, B; Videau, I; Vieira, D; Vilasis-Cardona, X; Visniakov, J; Vollhardt, A; Volyanskyy, D; Voong, D; Vorobyev, A; Voss, H; Wandernoth, S; Wang, J; Ward, D R; Watson, N K; Webber, A D; Websdale, D; Whitehead, M; Wiedner, D; Wiggers, L; Wilkinson, G; Williams, M P; Williams, M; Wilson, F F; Wishahi, J; Witek, M; Witzeling, W; Wotton, S A; Wyllie, K; Xie, Y; Xing, F; Xing, Z; Yang, Z; Young, R; Yushchenko, O; Zangoli, M; Zavertyaev, M; Zhang, F; Zhang, L; Zhang, W C; Zhang, Y; Zhelezov, A; Zhong, L; Zvyagin, A

    2012-01-01

    The ratio of branching fractions of the radiative $B$ decays $B^0\\to K^{*0}\\gamma$ and $B^0_s\\to \\phi\\gamma$ has been measured using $0.37\\,$fb$^{-1}$ of $pp$ collisions at a centre of mass energy of $\\sqrt{s}=7\\,$TeV, collected by the LHCb experiment. The value obtained is \\begin{equation} \\frac{{\\cal B}(B^0\\to K^{*0}\\gamma)}{{\\cal B}(B^0_s\\to \\phi\\gamma)} = 1.12 \\pm 0.08^{+0.06}_{-0.04}\\phantom{.}^{+0.09}_{-0.08},\

  6. Welfare Reform in California. State and County Implementation of CalWORKs in the Second Year

    National Research Council Canada - National Science Library

    Klerman, Jacob

    2001-01-01

    .... California's response to PRWORA was the California Work and Responsibility to Kids (CalWORKs) program-a "work-first" program that provides support services to help recipients move from welfare to work and toward self-sufficiency...

  7. Improvement by the Life Cycle Control System of University Production With Use of CALS-Tehnology

    Directory of Open Access Journals (Sweden)

    Yuriy I. Dreizis

    2013-01-01

    Full Text Available The mechanism of management by life cycle of production of university with use of CALS technologies is described. Tasks of service of marketing and the quality management department, connected with university product quality control are defined

  8. CALS and the Product State Model - Methodology and Supporting Schools and Paradigms

    DEFF Research Database (Denmark)

    Larsen, Michael Holm

    1998-01-01

    incorporates relevant information about each stage of the production process.The paper will describe the research object, the model object and discuss a part of the methodology in developing a Product State Model. The project is primarily technological, however, organisational and human aspects......This paper address the preliminary considerations in a research project, initiated February 1997, regarding Continuous Acquisition and Life-cycle Support (CALS) which is a part of the activities in CALS Center Denmark. The CALS concept is presented focusing on the Product State Model (PSM). The PSM...... will be developed upon, will be discussed. Also, the parameters for evaluating the PSM will be considered. In establishing the theoretical body of knowledge with respect to CALS, an identification of schools and paradigms within the research area of applying information technology in a manufacturing environment...

  9. Cal Poly Apparel Manufacturing Demonstration - Year 4 and 5 Final Technical Report

    National Research Council Canada - National Science Library

    2001-01-01

    .... Since the Southern California apparel industry is primarily small businesses producing low volume fashion products, the Cal Poly Demo factory needed to reflect the size and capability of its customer...

  10. Windows Calorimeter Control (WinCal) program computer software test plan

    International Nuclear Information System (INIS)

    Pertzborn, N.F.

    1997-01-01

    This document provides the information and guidelines necessary to conduct all the required testing of the Windows Calorimeter Control (WinCal) system. The strategy and essential components for testing the WinCal System Project are described in this test plan. The purpose of this test plan is to provide the customer and performing organizations with specific procedures for testing the specified system's functions

  11. The Efficiency of Delone Coverings of the Canonical Tilings MATH {cal T}(*(A_4)) -> T^*(A4) and MATH {cal T}(*(D_6)) -> T^*(D6)

    Science.gov (United States)

    Papadopolos, Zorka; Kasner, Gerald

    This chapter is devoted to the coverings of the two quasiperiodic canonical tilings MATH {cal T}(*(A_4)) -> T^*(A4) and MATH {cal T}(*(D_6)) equiv {cal T}(*(2F)) -> T^*(D6) T^*(2F), obtained by projection from the root lattices A4 and D6, respectively. In the first major part of this chapter, in Sect. 5.2, we shall introduce a Delone covering MATH {cal C}(s_{{cal) T}(*(A_4)}) -> C^sT^*(A4) of the 2-dimensional decagonal tiling MATH {cal T}(*(A_4)) -> T^*(A4). In the second major part of this chapter, Sect. 5.3, we summarize the results related to the Delone covering of the icosahedral tiling MATH {cal T}(*(D_6)) -> T^*(D6), MATH {cal C}_{{cal T}(*(D_6)}) -> CT^*(D6) and determine the zero-, single-, and double- deckings and the resulting thickness of the covering. In the conclusions section, we give some suggestions as to how the definition of the Delone covering might be changed in order to reach some real (full) covering of the icosahedral tiling MATH {cal T}(*(D_6)) -> T^*(D6). In Section 5.2 the definition of the Delone covering is also changed in order to avoid an unnecessary large thickness of the covering.

  12. Evaluación de la eficiencia de una batería de filtros empacados en zeolita en la remoción de metales pesados presentes en un licor mixto bajo condiciones de laboratorio Evaluation of efficiency of a filter battery packaging zeolite in the removal of heavy metals in a mixed liquor under laboratory conditions

    OpenAIRE

    Diana Rocío Acevedo Cifuentes; Sandra Milena Builes Felizzola; Carlos Andrés Ordóñez Ante; Idalia Jacqueline López Sánchez

    2011-01-01

    En este artículo se muestran resultados de investigación obtenidos en la remoción de los metales pesados, plomo, níquel, cromo, cadmio y mercurio, presentes en una solución compuesta por licor mixto proveniente de la planta de tratamiento de aguas residuales de San Fernando y una solución preparada con metales pesados con una concentración conocida, mediante el uso de una batería de filtros empacados en zeolita clinoptilolita. La experimentación se desarrolló bajo condiciones controladas de c...

  13. Fornecimento de cálcio para plantas de eucalyptus saligna por meio de aplicação de resíduo industrial lama de cal

    Directory of Open Access Journals (Sweden)

    Marcia Aparecida Simonete

    2013-10-01

    Full Text Available O resíduo industrial lama de cal, originado da produção de papel kraft branqueada de eucalipto, apresenta em sua composição quantidade considerável de cálcio (Ca, o que pode contribuir para reduzir o consumo de fertilizantes em plantios florestais. Com o objetivo de avaliar o efeito da lama de cal como fonte de Ca e seus efeitos sobre a disponibilidade de nutrientes e produção de matéria seca da parte aérea de plantas de eucalipto, foram conduzidos dois ensaios em vasos, em casa de vegetação, na área de pesquisa da Klabin Florestal do Paraná. Os solos utilizados foram um Neossolo Quartzarênico órtico (RQo e um Nitossolo Vermelho eutroférrico (NV. Os tratamentos constituíram-se de duas fontes de Ca, calcário dolomítico e lama de cal, e de uma testemunha, sendo identificados como: RQo testemunha, RQo calcário e RQo lama de cal; e NV testemunha, NV calcário e NV lama de cal. O delineamento experimental utilizado foi inteiramente casualizado, com quatro repetições. Para tanto, plantas de Eucalyptus saligna foram mantidas por 126 dias em vasos. Quantificou-se a produção de matéria seca e realizaram-se as análises de folhas e dos solos, por ocasião da coleta das plantas. Os dados revelaram que tanto a adição de calcário dolomítico quanto a lama de cal promoveram o fornecimento de Ca para as plantas de eucalipto, proporcionando aumentos na produção de matéria seca. Os teores de Ca e Na nas folhas de eucalipto foram acrescidos com a adição do resíduo ao solo, em comparação com o tratamento com calcário dolomítico, enquanto os teores de N, P, K e S foram semelhantes. As plantas cultivadas nos tratamentos RQo testemunha e RQo lama de cal apresentaram teores foliares de Mg abaixo da faixa considerada adequada. A adição de lama no solo elevou o pH e as concentrações de Ca e de Na, reduziu o Al trocável e não influenciou na disponibilidade de Mg, fato que pode proporcionar deficiência de Mg às plantas, em

  14. Impacto de las estrategias de ingresos sobre la seguridad alimentaria en comunidades rurales Mayas del norte de Campeche

    OpenAIRE

    Pat Fernández, Lucio A; Nahed Toral, José; Parra Vázquez, Manuel R; García Barrios, Luis; Nazar Beutelspacher, Austreberta; Bello Baltazar, Eduardo

    2010-01-01

    En este artículo se examina el efecto de las estrategias de ingresos sobre la suficiencia de consumo calórico en grupos domésticos (GD) mayas de Campeche, México. El análisis se basó en el enfoque de modos de vida y la información se obtuvo de una encuesta censal de hogares (N=237) en cuatro comunidades. Los resultados revelan que todos los GD tienen una estrategia de ingreso diversificada con una orientación claramente definida. El índice de seguridad calórica (ISC) es diferente (p

  15. The rock-cut tombs of S’Alblegall (Ferreries and cereal based agriculture in the mid 2nd millennium cal BC in Minorca

    Directory of Open Access Journals (Sweden)

    Arnau Fernández, Pedro

    2003-12-01

    Full Text Available In this paper we present the first work undertaken on the necropolis of S’Alblegall (Ferreries, Minorca. Hypogeum nº 3 of this necropolis has produced interesting traces for the study of cereal agriculture in the island of Minorca, in the middle of the XV cal ANE century. It allows us to propose a new hypothesis about the construction of hypogea in the island, as well as to review the different archaeological sites on the island that have signs of cereal cultivation.

    En este artículo damos a conocer los primeros trabajos realizados en la necrópolis de S’Alblegall (Ferreries, Menorca. El hipogeo nº 3 de esta necrópolis ha proporcionado interesantes indicios para el estudio de la agricultura cerealística en la isla de Menorca en un momento que situamos hacia mediados del siglo XV cal ANE. Ello nos permite plantear nuevas hipótesis sobre la construcción de hipogeos en la isla, así como realizar un recorrido por los distintos yacimientos arqueológicos menorquines que han deparado evidencias del cultivo de cereales.

  16. «La raza más desordenada del mundo»: la dinámica del parentesco entre los calós catalanes

    Directory of Open Access Journals (Sweden)

    David Lagunas Arias

    2016-05-01

    Full Text Available La tentativa de este texto es contribuir a la etnología sobre los gitanos, y la antropología social en general, aportando reflexiones que son importantes para el presente y el futuro de los estudios sobre gitanos. Para ello realizo un análisis de la organización social y familiar de los gitanos catalanes (calós de Mataró con el fin de presentar algunas pistas de investigación y orientaciones conceptuales. El funcionamiento flexible de las redes de parentesco bilateral, las categorizaciones en la terminología de parentesco y la antroponimia, las formas de nominación individual y familiar, y los sistemas de alianza aportan conocimiento crítico respecto a principios genuinos y categorías con capacidad explicativa de la antropología. Con ello intento aclarar algunos equívocos productivos en la etnografía sobre los sistemas de organización social de los gitanos.

  17. Efectos de la magnesia sobre la combinación de la cal en el clínker

    Directory of Open Access Journals (Sweden)

    Hesselljerg Christenssen, Niels

    1979-06-01

    Full Text Available El autor se propone, en este muy apreciable artículo, poner de manifiesto que la magnesia en el clínker de portland no es un constituyente "traza" sino que tiene efectos pequeños pero distintos en la calcinación del clínker, diferentes del efecto perjudicial que ejercería en la estabilidad del hormigón, motivo de su limitación al 6% en la mayoría de las normas qué condicionan al cemento portland.

  18. L’Observatoire numérique Nouvelle-Calédonie

    Directory of Open Access Journals (Sweden)

    Charlotte Ullmann

    2013-06-01

    Full Text Available Ses missions consistent à observer le développement numérique et favoriser l’animation territoriale des acteurs en Nouvelle-Calédonie. Parrainée par l’association calédonienne pour les technologies de l’information et de la communication (ACTIC et le ministère en charge de l’économie numérique du Gouvernement de Nouvelle-Calédonie nommé depuis mai 2009, une mission d’étude a été menée depuis juin 2010 pour définir les contours d’un Observatoire numérique. A travers cette étude, il s’agissai...

  19. Frontline CALS - Extranet Enabled Support of Customer Relations Based on Product State Information

    DEFF Research Database (Denmark)

    Larsen, Michael Holm; Franck, Lesley Robert; Pedersen, Mogens Kühn

    1999-01-01

    commerce called Frontline CALS. Frontline CALS integrate three bodies of knowledge, i.e. Continuous Acquisition and Lifecycle Support, Electronic Commerce, and the Customer Consumption Chain in order to construct a concept that enhances the service quality for customers with time critical operations....... The essence of Frontline CALS is that it combines a product and a customer view with the aim of enhancing the service quality offered by the dealers in collaboration with the producer. The article further provides empirical insight from an early prototype implementation of a Web Service System intended......The electronic economy has proliferated during the past decade. Many initiatives are launched in order to support customer's interaction with the company, however, often fragmented. A more holistic approach is provided in this article. The article suggests a business model in the era of electronic...

  20. Posibilidades estructurales de materiales a base de cal como conglomerante: primeros resultados

    OpenAIRE

    Estrada, Enrique; Barbero, José Miguel

    1986-01-01

    La cal es un material abundante y cuya producción suma a una tecnología muy accesible la ventaja de poder materializarse en pequeñas plantas dispersas, para poder reducir al mínimo la componente de costo debida al transporte. En el presente trabajo se ha planteado la posibilidad de obtener hormigones con fines estructurales, para viviendas de baja altura y que sean de fácil obtención, a base de cal y cenizas volantes o cenizas de cascara de arroz, variando sus proporciones, grados de finur...

  1. Cal-Bridge and CAMPARE: Engaging Underrepresented Students in Physics and Astronomy

    Science.gov (United States)

    Rudolph, Alexander L.; Cal-Bridge and CAMPARE Teams

    2018-01-01

    We describe two programs, Cal-Bridge and CAMPARE, with the common mission of increasing participation of groups traditionally underrepresented in astronomy, through summer research opportunities, in the case of CAMPARE, scholarships in the case of Cal-Bridge, and significant mentoring in both programs, creating a national impact on their numbers successfully pursuing a PhD in the field.In 8 years, the CAMPARE program has sent 112 students, >80% from underrepresented groups, to conduct summer research at one of 14 major research institutions throughout the country. Of the CAMPARE scholars who have graduated with a Bachelor’s degree, almost two-thirds (65%) have completed or are pursuing graduate education in physics, astronomy, or a related field, at institutions including UCLA, UC Riverside, UC Irvine, UC Santa Barbara, USC, Stanford, Univ. of Arizona, Univ. of Washington, Univ. of Rochester, Michigan State Univ., Georgia Tech, Georgia State Univ., Kent State, Indiana Univ., Univ. of Oregon, Syracuse Univ., Montana State Univ., and the Fisk-Vanderbilt Master’s-to-PhD program.Now entering its fourth year, the Cal-Bridge program is a CSU-UC Bridge program comprised of >140 physics and astronomy faculty from 9 University of California (UC), 15 California State University (CSU), and 30 California Community College (CCC) campuses throughout California. In the first four years, 34 Cal-Bridge Scholars have been selected, including 22 Hispanic, 3 African-American and 13 women students, 10 of whom are from URM groups. Thirty (30) of the 34 Cal-Bridge Scholars are first generation college students. In the last two years, 11 of 13 Cal-Bridge Scholars have begun PhD programs in physics or astronomy at top PhD programs nationally. Three (3) of these 11 scholars have won NSF Graduate Research Fellowships; one more received an Honorable Mention. The next cohort applies this fall.Cal-Bridge provides much deeper mentoring and professional development experiences over the last

  2. Apoptosis of human tongue squamous cell carcinoma cell (CAL-27 induced by Lactobacillus sp. A-2 metabolites

    Directory of Open Access Journals (Sweden)

    Guoliang ZHANG

    2014-07-01

    Full Text Available Objective: To study the effect of Lactobacillus sp. A-2 metabolites on viability of CAL-27 cells and apoptosis in CAL-27 cells. Methods: Lactobacillus sp. A-2 metabolites 1 and 2 (LM1 and LM2 were obtained by culturing Lactobacillus sp. A-2 in reconstituted whey medium and whey-inulin medium; the cultured CAL-27 cells were treated with different concentrations of LM1 and LM2 (0, 3, 6, 12, 24, 48 mg/mL and assayed by methyl thiazolyltetrazolium (MTT method; morphological changes of apoptotic cell were observed under fluorescence microscopy by acridine orange (Ao fluorescent staining; flow cytometry method (FCM and agarose gel electrophoresis were used to detect the apoptosis of CAL-27 cells treated LM1 and LM2. Results: The different concentrations of LM1 and LM2 could restrain the growth of CAL-27 cells, and in a dose-dependent manner; the apoptosis of CAL-27 cells was obviously induced and was time-dependent. Conclusions: Viability of CAL-27 cells was inhibited by Lactobacillus sp. A-2 metabolites; Lactobacillus sp. A-2 metabolites could induce CAL-27 cells apoptosis; study on the bioactive compounds in the Lactobacillus sp. A-2 metabolites and their molecular mechanism is in progress.

  3. 76 FR 70520 - Rovac Corp., RS Group of Companies, Inc., Rymer Foods, Inc. Stratus Services Group, Inc., Sun Cal...

    Science.gov (United States)

    2011-11-14

    ...., Rymer Foods, Inc. Stratus Services Group, Inc., Sun Cal Energy, Inc., Sun Motor International, Inc... current and accurate information concerning the securities of Sun Cal Energy, Inc. because it has not... Sun Motor International, Inc. because it has not filed any periodic reports since the period ended...

  4. Fixed Combination Aerosol Foam Calcipotriene 0.005% (Cal) Plus Betamethasone Dipropionate 0.064% (BD) is More Efficacious than Cal or BD Aerosol Foam Alone for Psoriasis Vulgaris

    Science.gov (United States)

    Tyring, Stephen; Bukhalo, Michael; Alonso-Llamazares, Javier; Olesen, Martin; Lowson, David; Yamauchi, Paul

    2016-01-01

    Objective: To evaluate the efficacy of fixed combination aerosol foam calcipotriene 0.005% (Cal) plus betamethasone dipropionate 0.064% (BD). Design: Patients were randomized (100:101:101) to receive Cal/BD foam, Cal foam, or BD foam once daily for four weeks. Setting: Twenty-eight United States centers. Participants: 302 patients (≥18 years) with Psoriasis vulgaris (plaque Psoriasis; ≥mild disease severity by physicians global assessment). Measurements: Treatment success of the body (“clear”/”almost clear” from baseline moderate/severe disease; “clear” from baseline mild disease). Involved scalp treatment success was an additional endpoint. Results: Most patients (76%) had moderate Psoriasis of the body (66% for scalp). At Week 4, 45 percent of Cal/BD foam patients achieved treatment success, significantly more than Cal foam (14.9%; OR 4.34 [95%CI 2.16,8.72] Pfoam (30.7%; 1.81 [1.00,3.26] P=0.047). Fifty-three percent of Cal/BD foam patients achieved treatment success of the scalp, significantly greater than Cal foam (35.6%; 1.91 [1.09,3.35] P=0.021), but not BD foam (47.5%; 1.24 [0.71,2.16] P=0.45). Mean modified Psoriasis area and severity index (population baseline 7.6) improved in all groups, with statistically significant differences in Week 4 Cal/BD foam score (2.37) versus Cal foam (4.39; mean difference -2.03 [-2.63][-1.43] Pfoam (3.37; -1.19 [-1.80][-0.59] Pfoam was significantly more effective than Cal foam and BD foam in providing treatment success at Week 4 and effective on involved scalp. Trial registration: NCT01536938. PMID:27313822

  5. The location of cemento enamel junction for CAL measurement: A clinical crisis

    Directory of Open Access Journals (Sweden)

    Vandana K

    2009-01-01

    Full Text Available Background: We face various problems while measuring the Clinical attachment level (CAL from Cemento-enamel junction (CEJ. This study aims to record and compare the CEJ location measurements using a xed reference point (FRP [Custom made stent] before and after ap elevation. Materials and Methods: A custom made stent and UNC-15 probe were used. Recording of CEJ location was made using a UNC-15 (Hu-Friedy probe, before (close CEJ and after (Open CEJ the reflection of the flap from the lower edge of the stent in those subjects who were indicated for flap surgery, at baseline. Results: We used statistical analysis involving intra-group comparison done by Paired-′t′ test. The close and the open CEJ measurements demonstrated a, statistically, non-significant difference. The equi-measurements of close and open CEJ numerical data were remarkably lower than the under and overestimation of measurements. Thus, despite certain disadvantages of stent, the FRP provides a simple solution for CAL measurement. Conclusion: The results of this study confirms the objective of the study and strongly suggests that CAL measurements done without FRP is subjected to great variation and the diagnostic and prognostic interpretation of CAL should be viewed seriously in periodontics.

  6. Organic Aerosol Composition and Sources in Pasadena, California during the 2010 CalNex Campaign

    Science.gov (United States)

    Organic aerosols (OA) in Pasadena are characterized using multiple measurements from the California Research at the Nexus of Air Quality and Climate Change (CalNex) campaign. Five OA components are identified using positive matrix factorization including hydrocarbon-like OA (HOA) ...

  7. RELATIONSHIP BETWEEN PHYSICAL ACTIVITIES OF GIRLS AND THEIR PARENTS WITH GIRLS` ATTITUDES PHYSI CAL ACTIVITY

    Directory of Open Access Journals (Sweden)

    Nebojša Čokorilo

    2007-05-01

    Full Text Available The re se arch was con duc ted on the sam ple of 222 pa rents of ele men tary school - girls, aged 6-7 years from No vi Sad, Som bor, Srem ska Mi tro vi ca, Bač ka Pa lan ka and Zre nja nin. Physi cal ac ti vi ti es of ma le chil dren and the ir pa rents we re al so eva lu a ted by the ir pa rents. That is the ti me when chil dren can con sti tu te ha bits for physi cal exer ci ses. Pas si ve at ti tu de of fe ma le chil dren to wards physi cal exer ci ses are the con se qu en ces of the sa me at ti tu des sha red by pa rents. Wit hin re se arch it is fo und out that the re is a hu ge im por tan ce of pa rents’ par ti ci pa tion in chil dren’s ac ti vi ti es. That in clu des how much chil dren are physi cal ac ti ve per we ek.

  8. The impact of BeamCal performance at different international linear ...

    Indian Academy of Sciences (India)

    Abstract. The ILC accelerator parameters and detector concepts are still under discus- sion in the world-wide community. As will be shown, the performance of the BeamCal, the calorimeter in the very forward area of the ILC detector, is very sensitive to the beam parameter and crossing angle choices. We propose here ...

  9. Tests with beam setup of the TileCal Phase-II upgrade electronics

    CERN Document Server

    Hlaluku, Dingane Reward; The ATLAS collaboration

    2017-01-01

    The LHC has planned a series of upgrades culminating in the High Luminosity LHC (HL-LHC) which will have an average luminosity 5-7 times larger than the nominal Run-2 value. The ATLAS Tile Calorimeter (TileCal) will undergo an upgrade to accommodate to the HL-LHC parameters. The TileCal electronics both on- and off-detector will be completely redesigned and a new readout architecture will be adopted. The photomultiplier signals will be digitised and transferred to the TileCal PreProcessors (PPr) located off-detector for every bunch crossing. Then, the PPr will provide preprocessed digital data to the first level trigger with improved spatial granularity and energy resolution with respect to the current analog trigger signals. We plan to insert one TileCal module instrumented with the new electronics in the real detector to evaluate and qualify the new readout and trigger concepts in the overall ATLAS data acquisition system. This new drawer, so-called Hybrid Demonstrator, must provide analog trigger signal fo...

  10. Setup, tests and results for the ATLAS TileCal Read Out Driver production

    CERN Document Server

    Valero, Alberto; Castillo, V; Cuenca, C; Ferrer, A; Fullana, E; González, V; Higón, E; Munar, A; Poveda, J; Ruiz-Martínez, A; Salvachúa, B; Sanchís, E; Solans, C; Soret, J; Torres, J; Valls, J A

    2007-01-01

    In this paper we describe the performance and test results of the production of the 38 ATLAS TileCal Read Out Drivers (RODs). We first describe the basic hardware specifications and firmware functionality of the modules, the test-bench setup used for production and the test procedure to qualify the boards. We then finally show and discuss the performance results.

  11. Windows Calorimeter Control (WinCal) program computer software configuration management plan

    International Nuclear Information System (INIS)

    1997-01-01

    This document describes the system configuration management activities performed in support of the Windows Calorimeter Control (WinCal) system, in accordance with Site procedures based on Institute of Electrical and Electronic Engineers (IEEE) Standard 828-1990, Standard for Software Configuration Management Plans (IEEE 1990) and IEEE Standard 1042-1987, Guide to Software Configuration Management (IEEE 1987)

  12. FoCal – A high granularity electromagnetic calorimeter for forward direct photon measurements

    NARCIS (Netherlands)

    Zhang, C.

    2017-01-01

    The measurement of direct photon production at forward rapidity (y∼3−5) at the LHC provides access to the structure of protons and nuclei at very small values of fractional momentum (x∼10−5). FoCal, an extremely-high-granularity Forward Calorimeter covering 3.3<η<5.3 is proposed as a detector

  13. Cal-Bridge and CAMPARE: Engaging Underrepresented Students in Physics and Astronomy

    Science.gov (United States)

    Rudolph, Alexander L.; Smecker-Hane, Tammy A.; Cal-Bridge Team; CAMPARE Team

    2018-06-01

    We describe two programs, Cal-Bridge and CAMPARE, with the common mission of increasing participation of groups traditionally underrepresented in astronomy, through summer research opportunities, in the case of CAMPARE, scholarships in the case of Cal-Bridge, and significant mentoring in both programs, creating a national impact on their numbers successfully pursuing a PhD in the field. In 9 years, the CAMPARE program has sent 150 students, >80% from underrepresented groups, to conduct summer research at one of 14 major research institutions throughout the country. Of the CAMPARE scholars who have graduated with a Bachelor’s degree, almost two-thirds (65%) have completed or are pursuing graduate education in physics, astronomy, or a related field, at institutions including UCLA, UC Riverside, UC Irvine, UC Santa Barbara, USC, Stanford, Univ. of Arizona, Univ. of Washington, Univ. of Rochester, Michigan State Univ., Georgia Tech, Georgia State Univ., Kent State, Indiana Univ., Univ. of Oregon, Syracuse Univ., Montana State Univ., and the Fisk- Vanderbilt Master’s-to-PhD program. Now in its fourth year, the Cal-Bridge program is a CSU-UC Bridge program comprised of physics and astronomy faculty from 9 University of California (UC), 15 California State University (CSU), and more than 30 California Community College (CCC) campuses throughout California. In the first four years, 34 Cal-Bridge Scholars have been selected, including 22 Hispanic, 3 African-American and 13 women students, 10 of whom are from URM groups. Thirty (30) of the 34 Cal-Bridge Scholars are first generation college students. In the last three years, 17 of 21 Cal-Bridge Scholars have begun or been accepted PhD programs in physics or astronomy at top PhD programs nationally. Three (3) of these scholars have won NSF Graduate Research Fellowships; one more received an Honorable Mention. Once selected, Cal-Bridge Scholars benefit from substantial financial support, intensive, joint mentoring by CSU

  14. A Novel TetR Family Transcriptional Regulator, CalR3, Negatively Controls Calcimycin Biosynthesis in Streptomyces chartreusis NRRL 3882

    Directory of Open Access Journals (Sweden)

    Lixia Gou

    2017-11-01

    Full Text Available Calcimycin is a unique ionophoric antibiotic that is widely used in biochemical and pharmaceutical applications, but the genetic basis underlying the regulatory mechanisms of calcimycin biosynthesis are unclear. Here, we identified the calR3 gene, which encodes a novel TetR family transcriptional regulator and exerts a negative effect on calcimycin biosynthesis. Disruption of calR3 in Streptomyces chartreusis NRRL 3882 led to significantly increased calcimycin and its intermediate cezomycin. Gene expression analysis showed that the transcription of calR3 and its adjacent calT gene were dramatically enhanced (30- and 171-fold, respectively in GLX26 (ΔcalR3 mutants compared with the wild-type strains. Two CalR3-binding sites within the bidirectional calR3-calT promoter region were identified using a DNase I footprinting assay, indicating that CalR3 directly repressed the transcription of its own gene and the calT gene. In vitro electrophoretic mobility shift assays suggested that both calcimycin and cezomycin can act as CalR3 ligands to induce CalR3 to dissociate from its binding sites. These findings indicate negative feedback for the regulation of CalR3 in calcimycin biosynthesis and suggest that calcimycin production can be improved by manipulating its biosynthetic machinery.

  15. Synthesis of LTA zeolite on corundum supports: Preliminary assessment for heavy metal removal from waste water; Sintesis de zeolita LTA sobre soportes de corindon: Evaluacion preliminar para la eliminacion de metales pesados de efluentes acuosos

    Energy Technology Data Exchange (ETDEWEB)

    Jacas, A.; Ortega, P.; Velasco, M. J.; Camblor, M. A.; Rodriguez, M. A.

    2012-11-01

    The effectiveness of materials based on LTA Zeolite as active phase, for their incorporation into systems aimed at the removal of heavy metals on waste water is evaluated in a preliminary way. This type of Zeolite with the main channel of a minimum free diameter of 0,41 nm and a low SiO{sub 2}/Al{sub 2}O{sub 3} ratio is an interesting molecular sieve, which in turn display a high ion exchange capacity. From this point of view, LTA Zeolite crystals were obtained in situ by hydrothermal synthesis and characterized by x ray diffraction (XRD) and scanning electron microscopy (SEM). We have studied the effect of hydrothermal synthesis time at 378 K. Likewise, the removal capacity of heavy metal from the active phase was evaluated in as a first step on diluted solutions of cooper salts at slightly acidic pH ({approx} 4,7). (Author) 28 refs.

  16. Oceanographic profile data using bottle collected during CalCOFI cruises, North Pacific Ocean, 2015-04 to 2015-11 (NCEI Accession 0162193)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bottle data collected during CalCOFI cruises 1504, 1507, and 1511, April 2015 - November 2015. The California Cooperative Oceanic Fisheries Investigations (CalCOFI)...

  17. Digital signage sobre IP

    OpenAIRE

    Casademont Filella, Albert

    2012-01-01

    Projecte que versa sobre el disseny i la implementació d'un sistema de Digital Signage (Cartelleria Digital) sobre IP, creant un gestor que permeti controlar de forma remota tot un conjunt de petits dispositius connectats a pantalles que emeten continguts multimèdia com vídeos, imatges, feeds rss...

  18. Final Report Feasibility Study for the California Wave Energy Test Center (CalWavesm)

    Energy Technology Data Exchange (ETDEWEB)

    Blakeslee, Samuel Norman [California Polytechnic State Univ. (CalPoly), San Luis Obispo, CA (United States). Inst. for Advanced Technology and Public Policy; Toman, William I. [Protean Wave Energy Ltd., Los Osos, CA (United States); Williams, Richard B. [Leidos Maritime Solutions, Reston, VA (United States); Davy, Douglas M. [CH2M, Sacramento, CA (United States); West, Anna [Kearns and West, Inc., San Francisco, CA (United States); Connet, Randy M. [Omega Power Engineers, LLC, Anaheim, CA (United States); Thompson, Janet [Kearns and West, Inc., San Francisco, CA (United States); Dolan, Dale [California Polytechnic State Univ. (CalPoly), San Luis Obispo, CA (United States); Baltimore, Craig [California Polytechnic State Univ. (CalPoly), San Luis Obispo, CA (United States); Jacobson, Paul [Electric Power Research Inst. (EPRI), Knoxville, TN (United States); Hagerman, George [Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States); Potter, Chris [California Natural Resources Agency, Sacramento, CA (United States); Dooher, Brendan [Pacific Gas and Electric Company, San Francisco, CA (United States); Wendt, Dean [California Polytechnic State Univ. (CalPoly), San Luis Obispo, CA (United States); Sheppard, Colin [Humboldt State Univ., Arcata, CA (United States); Harris, Andrew [Humboldt State Univ., Arcata, CA (United States); Lawson, W. Graham [Power Delivery Consultants, Inc., Albany, NY (United States)

    2017-07-31

    The California Wave Energy Test Center (CalWave) Feasibility Study project was funded over multiple phases by the Department of Energy to perform an interdisciplinary feasibility assessment to analyze the engineering, permitting, and stakeholder requirements to establish an open water, fully energetic, grid connected, wave energy test center off the coast of California for the purposes of advancing U.S. wave energy research, development, and testing capabilities. Work under this grant included wave energy resource characterization, grid impact and interconnection requirements, port infrastructure and maritime industry capability/suitability to accommodate the industry at research, demonstration and commercial scale, and macro and micro siting considerations. CalWave Phase I performed a macro-siting and down-selection process focusing on two potential test sites in California: Humboldt Bay and Vandenberg Air Force Base. This work resulted in the Vandenberg Air Force Base site being chosen as the most favorable site based on a peer reviewed criteria matrix. CalWave Phase II focused on four siting location alternatives along the Vandenberg Air Force Base coastline and culminated with a final siting down-selection. Key outcomes from this work include completion of preliminary engineering and systems integration work, a robust turnkey cost estimate, shoreside and subsea hazards assessment, storm wave analysis, lessons learned reports from several maritime disciplines, test center benchmarking as compared to existing international test sites, analysis of existing applicable environmental literature, the completion of a preliminary regulatory, permitting and licensing roadmap, robust interaction and engagement with state and federal regulatory agency personnel and local stakeholders, and the population of a Draft Federal Energy Regulatory Commission (FERC) Preliminary Application Document (PAD). Analysis of existing offshore oil and gas infrastructure was also performed

  19. Como enfrentar o \\'Fenômeno China\\' na produção de calçados: proposta de estratégia competitiva para a indústria calçadista brasileira.

    OpenAIRE

    Mario Luiz Bimbatti

    2007-01-01

    A competição no mercado internacional com os produtores mundiais, pode ser uma fonte de excelentes oportunidades ou de perigosas armadilhas, como o desafio de difícil solução, representado pelos produtores mundiais de calçados com baixos custos de mão-de-obra, por exemplo, os chineses. A grande maioria dos produtores brasileiros de calçados está estabelecida em clusters, como na Europa os produtores italianos de calçados estão estabelecidos nos \\"distretti\\". Essas concentrações geográficas d...

  20. Synergistic suppression of the PI3K inhibitor CAL-101 with bortezomib on mantle cell lymphoma growth

    International Nuclear Information System (INIS)

    Qu, Fu-Lian; Xia, Bing; Li, Su-Xia; Tian, Chen; Yang, Hong-Liang; Li, Qian; Wang, Ya-Fei; Yu, Yong; Zhang, Yi-Zhuo

    2015-01-01

    To investigate the effects of CAL-101, particularly when combined with bortezomib (BTZ) on mantle cell lymphoma (MCL) cells, and to explore its relative mechanisms. MTT assay was applied to detect the inhibitory effects of different concentrations of CAL-101. MCL cells were divided into four groups: control group, CAL-101 group, BTZ group, and CAL-101/BTZ group. The expression of PI3K-p110σ, AKT, ERK, p-AKT and p-ERK were detected by Western blot. The apoptosis rates of CAL-101 group, BTZ group, and combination group were detected by flow cytometry. The location changes of nuclear factor kappa-B (NF-κB) of 4 groups was investigated by NF-κB Kit exploring. Western blot was applied to detect the levels of caspase-3 and the phosphorylation of AKT in different groups. CAL-101 dose- and time-dependently induced reduction in MCL cell viability. CAL-101 combined with BTZ enhanced the reduction in cell viability and apoptosis. Western blot analysis showed that CAL-101 significantly blocked the PI3K/AKT and ERK signaling pathway in MCL cells. The combination therapy contributed to the inactivation of NF-κB and AKT in MCL cell lines. However, cleaved caspase-3 was up-regulated after combined treatment. Our study showed that PI3K/p110σ is a novel therapeutic target in MCL, and the underlying mechanism could be the blocking of the PI3K/AKT and ERK signaling pathways. These findings provided a basis for clinical evaluation of CAL-101 and a rationale for its application in combination therapy, particularly with BTZ

  1. O USO DE CLORETO DE CÁLCIO E DA CAL PARA O TRATAMENTO PÓS-COLHEITA DE PODRIDÕES EM MAÇÃS

    Directory of Open Access Journals (Sweden)

    BRACKMANN AURI

    2001-01-01

    Full Text Available Foi desenvolvido um experimento para avaliar a influência da contaminação da água e a eficiência de produtos químicos na lavagem de maçãs cvs. Gala e Fuji sobre a ocorrência de podridão em frutos com ferimentos. O delineamento experimental foi inteiramente casualizado, com quatro repetições por cultivar e unidade experimental composta por 25 frutos. Os tratamentos foram: a Testemunha (seca; b Testemunha em água; c Inoculação com água com esporos; d Inoculação em água com esporos + 30 horas em temperatura ambiente; e 30 horas em temperatura ambiente + inoculação em água com esporos; f Cal Ca(OH2 (1,5%; g CaCl2 (1,5%. Inicialmente, todos os frutos sofreram quatro lesões de 0,2cm de diâmetro por 0,5cm de profundidade na região equatorial. Os frutos foram inoculados com uma solução de esporos de Penicillium sp. Após aplicação dos respectivos tratamentos, os frutos foram armazenados sob refrigeração a 0ºC para a 'Gala' e -0,5ºC para a 'Fuji'. As avaliações de incidência de podridão foram realizadas na abertura das câmaras (60 dias e após 7 e 14 dias de exposição a 20ºC. Não houve ocorrência de podridão aos 60 dias para os frutos tratados com cal, não diferindo estatisticamente dos tratados com CaCl2. Aos sete e 14 dias, a cal mostrou-se mais eficiente que o CaCl2 na cv. Gala. Os frutos que ficaram 30 horas em temperatura ambiente antes de serem inoculados com uma solução de esporos, apresentaram menor incidência de podridão que os inoculados antes da exposição por 30 horas à temperatura ambiente, indicando que, após a inoculação, o fungo necessita de temperatura adequada para causar podridão.

  2. Diseño del sistema para extracción de gases de un horno para cal

    OpenAIRE

    Vega Basurto, Carlos W.; Martinez Lozano, Ernesto Rolando

    2009-01-01

    Esta tesis es realizada en una empresa distribuidora de material no metálico ubicada en la ciudad de Guayaquil en el kilómetro 12 ½ Vía a la costa. Es una planta que tiene dos procesos fundamentales que son obtención de Cal y de procesamiento de áridos (piedra y arena). Este trabajo se enfoca en la parte del proceso de obtención de Cal que tiene una gran demanda en estos momentos en el país. La empresa posee un horno de una capacidad de 80 Toneladas Por Día de Cal pero no logra cubrir to...

  3. An IPMI-compliant control system for the ATLAS TileCal Phase-II Upgrade PreProcessor module

    CERN Document Server

    Zuccarello, Pedro Diego; The ATLAS collaboration

    2016-01-01

    Abstract–The electronics of the hadronic calorimeter of the ATLAS detector (TileCal) is being redesigned as part of the works that will lead to the High Luminosity Large Hadron Collider (HL-LHC). TileCal electronics is divided in front and back-end subsystems. While the front-end is inside the detector, the back-end is located off-detector inserted in an ATCA shelf. The main objective of this paper is to describe the work being carried out in the hardware management aspects of the back-end electronics of TileCal.

  4. A modern documented Italian identified skeletal collection of 2127 skeletons: The CAL Milano Cemetery Skeletal Collection.

    Science.gov (United States)

    Cattaneo, Cristina; Mazzarelli, Debora; Cappella, Annalisa; Castoldi, Elisa; Mattia, Mirko; Poppa, Pasquale; De Angelis, Danilo; Vitello, Antonio; Biehler-Gomez, Lucie

    2018-04-24

    The CAL Milano Cemetery Skeletal Collection is a modern and continuously growing identified osteological collection of 2127 skeletons under study in the Laboratorio di Antropologia e Odontologia Forense (LABANOF) in the Department of Biomedical Sciences for Health of the University of Milan (Italy), and part of the Collezione Antropologica LABANOF (CAL). The collection presents individuals of both sexes and of all age groups with a high representation of elderly and an interesting sample of infants. Each individual is associated with a documentation that includes sex, age-at-death, dates of birth and death, and a death certificate that specifies the exact cause of death and the chain of events that led to it (related pathological conditions or traumatic events). It was also possible to recover for several individuals the autopsy reports and antemortem photographs. Copyright © 2017 Elsevier Ltd and ISBI. All rights reserved.

  5. A qualitative evaluation of UC CalFresh Plan, Shop, Save, Cook curriculum reveals additional outcomes

    Directory of Open Access Journals (Sweden)

    Andra Nicoli

    2016-04-01

    Full Text Available UC ANR Cooperative Extension (UCCE conducted six focus groups in 2013 with CalFresh-eligible adults to determine how to improve the existing evaluation method for the Plan, Shop, Save, Cook nutrition education classes. Focus group participants (n = 54 cited many behavior changes that are captured by the existing method. During the focus groups, changes in cooking practices and types of food purchased emerged as two domains that are not currently captured. A small pilot study conducted on 22 of the 54 focus group participants suggests that using a telephone interview to survey participants is a feasible and practical approach to collect follow-up data on long-term behavior changes. More rigorous follow-up studies may guide the development of policies aimed at increasing diet quality and food security of adult CalFresh participants.

  6. OxCal: versatile tool for developing paleoearthquake chronologies--a primer

    Science.gov (United States)

    Lienkaemper, J.J.; Ramsey, C.B.

    2009-01-01

    Ages of paleoearthquakes (events), i.e., evidence of earthquakes inferred from the geologic record, provide a critical constraint on estimation of the seismic hazard posed by an active fault. The radiocarbon calibration program OxCal (4.0.3 and above; Bronk Ramsey 2007, 2001) provides paleoseismologists with a straightforward but rigorous means of estimating these event ages and their uncertainties. Although initially developed for the chronologic modeling of archaeological data from diverse sources (e.g., radiocarbon, historical knowledge, etc.), OxCal is readily adaptable to other disciplines requiring chronological modeling, such as paleoseismology (Fumal et al. 2002; Lindvall et al. 2002; Kelson et al. 2006; Noriega et al. 2006; Lienkaemper and Williams 2007; Yen et al. 2008).

  7. Apuntes sobre esporotricosis

    OpenAIRE

    Londoño, Fabio

    2011-01-01

    Se hace una breve reseña histórica de las primeras comunicaciones sobre esporotricosis. Se destaca la amplia difusión de la enfermedad en nuestro país. 3. Se hace notar la no existencia de datos bibliográficos sobre formas extracutáneas. 4. Se llama la atención sobre la eficaz ayuda de la intradermo-reacción con esporotriquina en el diagnóstico de la enfermedad. 5- Se comunica un caso de esporotricosis verrugosa tratado con anfotericin B, con excelentes resultados

  8. Apuntes sobre esporotricosis

    Directory of Open Access Journals (Sweden)

    Fabio Londoño

    1960-01-01

    Full Text Available Se hace una breve reseña histórica de las primeras comunicaciones sobre esporotricosis. Se destaca la amplia difusión de la enfermedad en nuestro país. 3. Se hace notar la no existencia de datos bibliográficos sobre formas extracutáneas. 4. Se llama la atención sobre la eficaz ayuda de la intradermo-reacción con esporotriquina en el diagnóstico de la enfermedad. 5- Se comunica un caso de esporotricosis verrugosa tratado con anfotericin B, con excelentes resultados

  9. Social complexity in the third millennium cal BC in southern Portugal

    OpenAIRE

    Soares, Joaquina

    2016-01-01

    The starting point of this paper is the extensive archaeological fieldwork developed at the Chalcolithic fortification of Porto das Carretas on the left bank of the Middle Guadiana River (Soares, 2013). The well-preserved stratigraphy and correlated radiocarbon dates of Porto das Carretas enabled a new and deep insight into the third millennium cal BC, displaying environmental, economic and social transformations from the first to the second half of the millenium. Furhermore, the integration ...

  10. Posibilidades estructurales de materiales a base de cal como conglomerante: primeros resultados

    Directory of Open Access Journals (Sweden)

    Estrada, Enrique

    1986-11-01

    Full Text Available Lime is a plentiful material which production combine a very accessible technology with the advantage that it must be prepared in little disperse plants, so that the transport charges can be reduced to the minimum. This work expound the possibility to obtain concretes with structural purposes, for housing of scarce height, of easy obtention, basically from flying ashes or rice husk ashes, varying its proportions and fineness degree and studying the initial and final resistance. Good results have been obtained mainly with rice husk ashes and lime, with 60 days resistance higher than 15 Mpa.La cal es un material abundante y cuya producción suma a una tecnología muy accesible la ventaja de poder materializarse en pequeñas plantas dispersas, para poder reducir al mínimo la componente de costo debida al transporte. En el presente trabajo se ha planteado la posibilidad de obtener hormigones con fines estructurales, para viviendas de baja altura y que sean de fácil obtención, a base de cal y cenizas volantes o cenizas de cascara de arroz, variando sus proporciones, grados de finura y estudiando la influencia de distintos factores en la resistencia inicial y final. Se han obtenido buenos resultados, principalmente con ceniza de cascara de arroz y cal con resistencias a 60 días superiores a los 15 MPa.

  11. A modern documented Italian identified skeletal collection of 2127 skeletons: the CAL Milano Cemetery Skeletal Collection.

    Science.gov (United States)

    Cattaneo, Cristina; Mazzarelli, Debora; Cappella, Annalisa; Castoldi, Elisa; Mattia, Mirko; Poppa, Pasquale; De Angelis, Danilo; Vitello, Antonio; Biehler-Gomez, Lucie

    2018-06-01

    The CAL Milano Cemetery Skeletal Collection is a modern and continuously growing identified osteological collection of 2127 skeletons under study in the Laboratorio di Antropologia e Odontologia Forense (LABANOF) in the Department of Biomedical Sciences for Health of the University of Milan (Italy), and part of the Collezione Antropologica LABANOF (CAL). The collection presents individuals of both sexes and of all age groups with a high representation of the elderly and an interesting sample of infants. Each individual is associated with a documentation that includes sex, age-at-death, dates of birth and death, and a death certificate that specifies the exact cause of death and the chain of events that led to it (related pathological conditions or traumatic events). It was also possible to recover for several individuals the autopsy reports and antemortem photographs. This documented osteological collection is of crucial interest in physical and forensic anthropology: it provides unique teaching opportunities and more importantly considerable research possibilities to test and develop sex and age estimation methods, investigate key subjects of forensic relevance and discuss pathological markers, among others. The aim of this paper is to introduce the CAL Milano Cemetery Skeletal Collection as a new identified skeletal collection and present its research and teaching potential. Copyright © 2018 Elsevier B.V. All rights reserved.

  12. A Mathematica-based CAL matrix-theory tutor for scientists and engineers

    Directory of Open Access Journals (Sweden)

    M. A. Kelmanson

    1993-12-01

    Full Text Available Under the TLTP initiative, the Mathematics Departments at Imperial College and Leeds University are jointly developing a CAL method directed at supplementing the level of mathematics of students entering science and engineering courses from diverse A-level (or equivalent backgrounds. The aim of the joint project is to maintain – even increase - the number of students enrolling on such first-year courses without lowering the courses' existing mathematical standards. A CAL tutor for matrix theory is presented in this paper, in the form of Mathematica Notebooks. This constitutes one of a list of specific A-level mathematics core options required by science and engineering departments. The module has been written so as to recognize students' errors and advise accordingly. Questions are generated randomly, at run time, in order to preclude copying between users. The module incorporates automated performance indicators so as to impinge minimally on existing staff resources. As an aid to other CAL authors considering the use of Mathematica Notebooks, idiosyncratic difficulties encountered within Mathematica Notebooks are catalogued and discussed in detail.

  13. The upgrade of the laser calibration system for the ATLAS hadron calorimeter TileCal

    CERN Document Server

    Spalla, Margherita; The ATLAS collaboration

    2014-01-01

    The Tile Calorimeter (TileCal), the central section of the hadronic calorimeter of the ATLAS experiment, is a key detector component to detect hadrons, jets and taus and to measure the missing transverse energy. TileCal is built of steel and scintillating tiles coupled to optical fibers and read‐out by photomultipliers (PMT). The performance of TileCal relies on a continuous, high resolution calibration of the individual response of the 10,000 channels forming the detector. The calibration is based on a three level architecture: a charge injection system used to monitor the full electronics chain including front-end amplifiers, digitizers and event builder blocks for each individual channel; a distributed optical system using laser pulses to excite all PMTs; and a mobile Cesium radiative source which is driven through the detector cell floating inside a pipe system. This architecture allows for a cascade calibration of the electronics, of the PMT and electronics, and of full chain including the active detec...

  14. CubiCal - Fast radio interferometric calibration suite exploiting complex optimisation

    Science.gov (United States)

    Kenyon, J. S.; Smirnov, O. M.; Grobler, T. L.; Perkins, S. J.

    2018-05-01

    It has recently been shown that radio interferometric gain calibration can be expressed succinctly in the language of complex optimisation. In addition to providing an elegant framework for further development, it exposes properties of the calibration problem which can be exploited to accelerate traditional non-linear least squares solvers such as Gauss-Newton and Levenberg-Marquardt. We extend existing derivations to chains of Jones terms: products of several gains which model different aberrant effects. In doing so, we find that the useful properties found in the single term case still hold. We also develop several specialised solvers which deal with complex gains parameterised by real values. The newly developed solvers have been implemented in a Python package called CubiCal, which uses a combination of Cython, multiprocessing and shared memory to leverage the power of modern hardware. We apply CubiCal to both simulated and real data, and perform both direction-independent and direction-dependent self-calibration. Finally, we present the results of some rudimentary profiling to show that CubiCal is competitive with respect to existing calibration tools such as MeqTrees.

  15. A Full Slice Test Version of a Tentative Upgraded Readout System for TileCal

    CERN Document Server

    Muschter, S; The ATLAS collaboration; Bohm, C; Eriksson, D; Kavianipour, H; Oreglia, M; Tang, F

    2011-01-01

    The upgrade plans on the ATLAS hadronic calorimeter (TileCal) include the full readout of all data to the counting room. In order to study functional requirements of the future upgraded TileCal readout system we have assembled a minimal TDAQ slice. The aim is to implement a tentative readout chain for TileCal, starting with a newly developed 3-in-1 FE-board from University of Chicago and ending with the storage of triggered data on a PC. Later we will use PMT pulses, amplified and shaped by the 3-in-1 board, as a data source. However, for simplicity we start by using well defined calibration pulses also generated by the 3-in-1 board. The pulses are sampled by a 12 bit ADC, which is connected to an ML605 evaluation board from XILINX. These boards emulate the new on-detector electronics. The ML605 communicates via two 5Gb/s optical links with a Virtex-6 FPGA development board from HighTech Global which emulates the off-detector electronics. The off-detector board is situated in a PC and uses PCIe for readout an...

  16. Evaluación de la eficiencia de una batería de filtros empacados en zeolita en la remoción de metales pesados presentes en un licor mixto bajo condiciones de laboratorio Evaluation of efficiency of a filter battery packaging zeolite in the removal of heavy metals in a mixed liquor under laboratory conditions

    Directory of Open Access Journals (Sweden)

    Diana Rocío Acevedo Cifuentes

    2011-01-01

    Full Text Available En este artículo se muestran resultados de investigación obtenidos en la remoción de los metales pesados, plomo, níquel, cromo, cadmio y mercurio, presentes en una solución compuesta por licor mixto proveniente de la planta de tratamiento de aguas residuales de San Fernando y una solución preparada con metales pesados con una concentración conocida, mediante el uso de una batería de filtros empacados en zeolita clinoptilolita. La experimentación se desarrolló bajo condiciones controladas de caudal y pH, a temperatura ambiente. Se encontró que la eficiencia de los filtros bajo las condiciones específicas de diseño es significativamente alta en la remoción de los metales pesados evaluados en la solución acuosa. Se encontró, además, que sin importar el valor de la concentración inicial, se obtuvo una remoción importante en los contaminantes luego de pasar por los filtros con una mayor eficiencia en la remoción del mercurio.This article shows the research results on the removal of five heavy metals (lead, nickel, chromium, cadmium and mercury present in a liquor made of a mixture of wastewater from San Fernando wastewater treatment plant and a solution prepared with known concentrations of heavy metals, using a series of batery filters packed with zeolita clinoptilolita. The experiments were run under controlled conditions of flow and pH, at room temperature. It was found that the removal efficiency was significantly high under the specified design conditions; also, it was found an important removal of the contaminants after passing through the filters, independently of the initial concentration, with the highest observed removal for mercury.

  17. Constraints on primary and secondary particulate carbon sources using chemical tracer and 14C methods during CalNex-Bakersfield

    Data.gov (United States)

    U.S. Environmental Protection Agency — The present study investigates primary and secondary sources of organic carbon for Bakersfield, CA, USA as part of the 2010 CalNex study. The method used here...

  18. CAMPARE and Cal-Bridge: Two Institutional Networks Increasing Diversity in Astronomy

    Science.gov (United States)

    Rudolph, Alexander L.; Impey, Chris David; Phillips, Cynthia B.; Povich, Matthew S.; Prather, Edward E.; Smecker-Hane, Tammy A.

    2015-01-01

    We describe two programs, CAMPARE and Cal-Bridge, with the common mission of increasing participation of groups traditionally underrepresented in astronomy, particularly underrepresented minorities and women, through summer research opportunities, in the case of CAMPARE, scholarships in the case of Cal-Bridge, and significant mentoring in both programs, leading to an increase in their numbers successfully pursuing a PhD in the field.CAMPARE is an innovative REU-like summer research program, currently in its sixth year, comprising a network of comprehensive universities and community colleges in Southern California and Arizona (most of which are minority serving institutions), and ten major research institutions (University of Arizona Steward Observatory, the SETI Institute, JPL, Caltech, and the five Southern California UC campuses, UCLA, UCI, UCSD, UCR, and UCSB).In its first five summers, CAMPARE sent a total of 49 students from 10 different CSU and community college campuses to 5 research sites of the program. Of these 49 participants, 25 are women and 24 are men; 22 are Hispanic, 4 are African American, and 1 is Native American, including 6 female Hispanic and 2 female African-American participants. Twenty-one (21) CAMPARE participants have graduated from college, and more than half (11) have attended or are attending a graduate program, including 8 enrolled in PhD or Master's-to-PhD programs. Over twenty CAMPARE students have presented at the AAS and other national meetings.The Cal-Bridge program is a diverse network of higher education institutions in Southern California, including 5 UC campuses, 8 CSU campuses, and 7 community colleges dedicated to the goal of increasing the number of underrepresented minority and female students attending graduate school in astronomy or related fields. We have recently selected our inaugural group of five 2014 Cal-Bridge Scholars, including four women (two Hispanic and one part Native American), and one Hispanic man

  19. Antarctic Surface Reflectivity Measurements from the ANITA-3 and HiCal-1 Experiments

    Science.gov (United States)

    Gorham, P. W.; Allison, P.; Banerjee, O.; Beatty, J. J.; Belov, K.; Besson, D. Z.; Binns, W. R.; Bugaev, V.; Cao, P.; Chen, C.; Chen, P.; Clem, J. M.; Connolly, A.; Dailey, B.; Dasgupta, P.; Deaconu, C.; Cremonesi, L.; Dowkontt, P. F.; Fox, B. D.; Gordon, J.; Hill, B.; Hupe, R.; Israel, M. H.; Jain, P.; Kowalski, J.; Lam, J.; Learned, J. G.; Liewer, K. M.; Liu, T. C.; Matsuno, S.; Miki, C.; Mottram, M.; Mulrey, K.; Nam, J.; Nichol, R. J.; Novikov, A.; Oberla, E.; Prohira, S.; Rauch, B. F.; Romero-Wolf, A.; Rotter, B.; Ratzlaff, K.; Russell, J.; Saltzberg, D.; Seckel, D.; Schoorlemmer, H.; Stafford, S.; Stockham, J.; Stockham, M.; Strutt, B.; Tatem, K.; Varner, G. S.; Vieregg, A. G.; Wissel, S. A.; Wu, F.; Young, R.

    The primary science goal of the NASA-sponsored ANITA project is measurement of ultra-high energy neutrinos and cosmic rays, observed via radio-frequency signals resulting from a neutrino or cosmic ray interaction with terrestrial matter (e.g. atmospheric or ice molecules). Accurate inference of the energies of these cosmic rays requires understanding the transmission/reflection of radio wave signals across the ice-air boundary. Satellite-based measurements of Antarctic surface reflectivity, using a co-located transmitter and receiver, have been performed more-or-less continuously for the last few decades. Our comparison of four different reflectivity surveys, at frequencies ranging from 2 to 45GHz and at near-normal incidence, yield generally consistent maps of high versus low reflectivity, as a function of location, across Antarctica. Using the Sun as an RF source, and the ANITA-3 balloon borne radio-frequency antenna array as the RF receiver, we have also measured the surface reflectivity over the interval 200-1000MHz, at elevation angles of 12-30∘. Consistent with our previous measurement using ANITA-2, we find good agreement, within systematic errors (dominated by antenna beam width uncertainties) and across Antarctica, with the expected reflectivity as prescribed by the Fresnel equations. To probe low incidence angles, inaccessible to the Antarctic Solar technique and not probed by previous satellite surveys, a novel experimental approach (“HiCal-1”) was devised. Unlike previous measurements, HiCal-ANITA constitute a bi-static transmitter-receiver pair separated by hundreds of kilometers. Data taken with HiCal, between 200 and 600MHz shows a significant departure from the Fresnel equations, constant with frequency over that band, with the deficit increasing with obliquity of incidence, which we attribute to the combined effects of possible surface roughness, surface grain effects, radar clutter and/or shadowing of the reflection zone due to Earth

  20. Crystallization and Preliminary Diffraction Analysis of the CAL PDZ Domain in Complex with a Selective Peptide Inhibitor

    Energy Technology Data Exchange (ETDEWEB)

    J Amacher; P Cushing; J Weiner; D Madden

    2011-12-31

    Cystic fibrosis (CF) is associated with loss-of-function mutations in the CF transmembrane conductance regulator (CFTR), which regulates epithelial fluid and ion homeostasis. The CFTR cytoplasmic C-terminus interacts with a number of PDZ (PSD-95/Dlg/ZO-1) proteins that modulate its intracellular trafficking and chloride-channel activity. Among these, the CFTR-associated ligand (CAL) has a negative effect on apical-membrane expression levels of the most common disease-associated mutant {Delta}F508-CFTR, making CAL a candidate target for the treatment of CF. A selective peptide inhibitor of the CAL PDZ domain (iCAL36) has recently been developed and shown to stabilize apical expression of {Delta}F508-CFTR, enhancing net chloride-channel activity, both alone and in combination with the folding corrector corr-4a. As a basis for structural studies of the CAL-iCAL36 interaction, a purification protocol has been developed that increases the oligomeric homogeneity of the protein. Here, the cocrystallization of the complex in space group P2{sub 1}2{sub 1}2{sub 1}, with unit-cell parameters a = 35.9, b = 47.7, c = 97.3 {angstrom}, is reported. The crystals diffracted to 1.4 {angstrom} resolution. Based on the calculated Matthews coefficient (1.96 {angstrom}{sup 3} Da{sup -1}), it appears that the asymmetric unit contains two complexes.

  1. Fisiologia do estresse calórico e a utilização de eletrólitos em frangos de corte Heat stress physiology and eletrolites for broilers

    Directory of Open Access Journals (Sweden)

    Sebastião Aparecido Borges

    2003-10-01

    Full Text Available Várias alterações metabólicas e fisiológicas são desencadeadas em frangos de corte submetidos a altas temperaturas ambientais, o que pode acarretar em grandes perdas no desempenho e na imunocompetência destas aves. Além das técnicas de controle ambiental estarem sendo freqüentemente empregadas para a redução do impacto negativo do estresse calórico sobre o desempenho das aves, outras medidas estão constantemente sendo estudadas. Nos últimos anos, o manejo nutricional adequado também tem demonstrado ser efetivo como medida preventiva para o estresse calórico, pois o funcionamento do sistema termorregulador do frango (produção de calor, rotas evaporativas e não evaporativas de dissipação de calor pode ser influenciado pela dieta, em especial, o estabelecimento de adequados balanços eletrolíticos, devido a sua importância fisiológica no mecanismo do estresse calórico. Assim, os mecanismos nutricionais devem ser reavaliados como uma ferramenta no controle desta disfunção metabólica das aves.High ambient temperature could result in numerous physiological and metabolic perturbations on broilers chicken with consequently adversely impact in broilers performance and immune response. Though the environmental control technique have been frequently useful for reduce the negative impact of heat stress in poultry performance, other alternative have been studied. Lately, the nutritional manipulation is also used for reducing the heat stress, once the most part of thermobalance components of broiler (heat production, evaporative and nonevaporative heat dissipation routes could be manipulated though the diet. Specially, the eletrolitic balance have fundamental importance in physiological stress mechanism and for this way should be considered as a tool in control of this metabolic dysfunction in birds.

  2. CalTOX, a multimedia total exposure model for hazardous-waste sites

    International Nuclear Information System (INIS)

    McKone, T.E.

    1993-06-01

    CalTOX has been developed as a spreadsheet model to assist in health-risk assessments that address contaminated soils and the contamination of adjacent air, surface water, sediments, and ground water. The modeling effort includes a multimedia transport and transformation model, exposure scenario models, and efforts to quantify and reduce uncertainty in multimedia, multiple-pathway exposure models. This report provides an overview of the CalTOX model components, lists the objectives of the model, describes the philosophy under which the model was developed, identifies the chemical classes for which the model can be used, and describes critical sensitivities and uncertainties. The multimedia transport and transformation model is a dynamic model that can be used to assess time-varying concentrations of contaminants introduced initially to soil layers or for contaminants released continuously to air or water. This model assists the user in examining how chemical and landscape properties impact both the ultimate route and quantity of human contact. Multimedia, multiple pathway exposure models are used in the CalTOX model to estimate average daily potential doses within a human population in the vicinity of a hazardous substances release site. The exposure models encompass twenty-three exposure pathways. The exposure assessment process consists of relating contaminant concentrations in the multimedia model compartments to contaminant concentrations in the media with which a human population has contact (personal air, tap water, foods, household dusts soils, etc.). The average daily dose is the product of the exposure concentrations in these contact media and an intake or uptake factor that relates the concentrations to the distributions of potential dose within the population

  3. Cal/Val activities for DubaiSat-2 performance assessment

    Science.gov (United States)

    Bushahab, A.; Al-Mansoori, S.; Al-Suwaidi, K.; Al Matroushi, Hessa; Al-Tunaiji, E.; Al Shamsi, Meera

    2014-10-01

    Emirates Institution for Advanced Science and Technology (EIAST) was established by the Dubai Government in 2006. After three years of working together with Satrec Initiative (South Korea), EIAST was able to launch DubaiSat-1 on the 29th of July 2009. Building on the success of DubaiSat-1 and the roll out of the knowledge transfer program, UAE engineers were involved in almost 70% of the total build and design of DubaiSat-2. Targeting the commercial market, DubaiSat-2 was launched on the 21st of November 2013 for capturing 1-meter resolution images. The 1st Cal/Val phase was the most critical phase in the satellite life-time, where most of the initial measurements took place. This phase extended over the period of 25/11/2013 till 12/12/2013. Moreover, this phase included most of the relative calibration tasks, color balancing and band matching. 2nd Cal/Val phase included most of the debugging and the pointing accuracy calibration tests. This phase extended over the period of 11/02/2014 till 09/03/2014. This phase emphasized on the calibration of the pointing accuracy. The 3rd Cal/Val phase included fine tuning for the Gyro system to further increase the stability of the satellite and thus improve the pointing accuracy. Moreover, new techniques were implemented to the Pan-Sharpening and to the MTF compensation procedures to enhance the final product. This phase extended over the period of 04/05/2014 till 21/05/2014.

  4. The TileCal Online Energy Estimation for the Next LHC Operation Period

    Science.gov (United States)

    Sotto-Maior Peralva, B.; ATLAS Collaboration

    2015-05-01

    The ATLAS Tile Calorimeter (TileCal) is the detector used in the reconstruction of hadrons, jets and missing transverse energy from the proton-proton collisions at the Large Hadron Collider (LHC). It covers the central part of the ATLAS detector (|η| occupancy, the pile-up, which is often modeled by a non-Gaussian distribution, can be seen as outlier events. Consequently, the classical covariance matrix estimation does not describe correctly the second order statistics of the background for the majority of the events, as this approach is very sensitive to outliers. As a result, the OF (or MF) coefficients are miscalculated leading to a larger variance and biased energy estimator. This work evaluates the usage of a robust covariance estimator, namely the Minimum Covariance Determinant (MCD) algorithm, to be applied in the OF design. The goal of the MCD estimator is to find a number of observations whose classical covariance matrix has the lowest determinant. Hence, this procedure avoids taking into account low likelihood events to describe the background. It is worth mentioning that the background covariance matrix as well as the OF coefficients for each TileCal channel are computed offline and stored for both online and offline use. In order to evaluate the impact of the MCD estimator on the performance of the OF, simulated data sets were used. Different average numbers of interactions per bunch crossing and bunch spacings were tested. The results show that the estimation of the background covariance matrix through MCD improves significantly the final energy resolution with respect to the identity matrix which is currently used. Particularly, for high occupancy cells, the final energy resolution is improved by more than 20%. Moreover, the use of the classical covariance matrix degrades the energy resolution for the majority of TileCal cells.

  5. Influencia del tratamiento «a fuego» en las características del estuco tradicional con cal

    Directory of Open Access Journals (Sweden)

    González-Yunta, F.

    2015-03-01

    Full Text Available This research advances in the attempt to recover the traditional technique of stucco by fire; paradigm of indoor decoration until half of 20th century due to its high quality marbled imitations. On its implementation process, it was used lime mortars with marble aggregates, mineral pigments and greases. With these materials, masses were prepared and extended into the walls, they were painted in fresco and ended with the passage of a heated metal tool. As with any other technique, the time passing over has blurred the knowledge on the subject, making very difficult the preservation or restoration of examples in our heritage. Despite of the limited literature, the process has been recovered; subjecting the samples prepared at different trials that have characterized the finished, both in its merits and its conferred characteristics by finally protecting the samples with a layer of wax, as was done traditionally.Esta investigación avanza en el intento de recuperar la técnica tradicional del estuco a fuego, paradigma de la decoración de espacios interiores hasta la mitad del s. XX por sus imitaciones marmóreas de gran calidad. Para ejecutarlos se utilizaban morteros de cal con áridos de mármol, pigmentos minerales y grasas; con estos materiales se preparaban y tendían las masas, se pintaban al fresco y se terminaban con el paso de una herramienta metálica caliente. Como sucede con otras técnicas, el paso del tiempo ha difuminado los conocimientos sobre la materia, haciendo muy difícil la conservación o restauración de los ejemplos en nuestro patrimonio. A partir de la escasa bibliografía existente se ha recuperado el proceso, sometiendo las muestras elaboradas a diferentes ensayos que han caracterizado el acabado final, tanto en sus características intrínsecas como en las que le son conferidas al proteger finalmente las muestras con una capa de cera, tal y como se realizaba tradicionalmente.

  6. Calculation of the TileCal magnetic forces using 3D Tosca model

    International Nuclear Information System (INIS)

    Morozov, N.A.; Samsonov, E.V.; Vorozhtsov, S.B.; Nessi, M.

    1998-01-01

    The purpose of the given paper is to contribute to the new summary (taking into account the latest information) of magnetic forces, acting on various parts of the TileCal of the ATLAS detector (LHC, CERN). To get an impression of the field distribution in the vicinity of the objects under consideration of existing 3D Tosca field model of the detector was used. The detailed distribution of forces along the border of various parts of the system, derived here, is valuable for understanding the mechanics of system performance

  7. Morteros de cal : aplicación en el patrimonio histórico

    OpenAIRE

    Cazalla Vázquez, Olga

    2013-01-01

    Los morteros de cal, ha sido un material de construcción muy utilizado en sus múltiples funciones a lo largo de la historia. Se construía tras una selección especialmente cuidada de sus materias primas y eran totalmente compatibles con el resto de elementos de fábrica. Hoy en día, se tiende a reemplazarlos por morteros de cemento, que aunque tienen muy buenas propiedades físico-mecánicas, son totalmente incompatibles con los demás elementos de fábrica, ya que además producen un fuerte impacto...

  8. Gale Digital Collections: Ray Abruzzi Interviewed by Luisa Calè and Ana Parejo Vadillo

    Directory of Open Access Journals (Sweden)

    Ray Abruzzi

    2015-12-01

    Full Text Available This interview addresses the commercial dimensions of the nineteenth-century digital archive. Luisa Calè and Ana Parejo Vadillo ask Ray Abruzzi, Vice President and Publisher for 'Gale Digital Collections' at Gale, about the company’s origins, its commercial approach to digital collections, and the challenges of digitization. In the context of the open access movement, the architecture of participation, and crowdsourcing, Abruzzi discusses how the company works with academic partners and interfaces with other digital libraries and platforms.

  9. Hitachi product data management system toward the 21st century by CALS approach

    International Nuclear Information System (INIS)

    Yoshinaga, Toshiaki; Kibushi, Haruo; Kitaur, Ayumu

    1998-01-01

    HIPDM21 (Hitachi Product Data Management System for the 21st century) is a comprehensive computer information management system which has been developed for the purpose of plant life cycle business support in terms of the electronics information exchange and sharing between the disciplines using the product data management technology. The system consists of core systems (Engineering Data Control System, Integrated Commodity Database system, and Document Management System) and business application systems. In the present development phase, the system is being enhanced to support CALS standards including EDT, SGML, and STEP, and to support information exchange and sharing with outside the company including clients, construction companies, and domestic/international vendors. (author)

  10. Aerodynamic design of the Cal Poly Da Vinci Human-Powered Helicopter

    Science.gov (United States)

    Larwood, Scott; Saiki, Neal

    1990-01-01

    This paper will discuss the methodology used in designing the rotor and drive propellers for the third generation Cal Poly Da Vinci Human-Powered Helicopter. The rotor was designed using a lifting surface, uniform inflow hover analysis code and the propeller was designed using a minimum induced-loss method. Construction, geometry, and operating considerations are discussed as they impact the designs. Optimization of the design performance is also explained. The propellers were tested in a wind tunnel and results are compared with theoretical data. Successful flight tests of the Da Vinci III are discussed.

  11. The CAL: cognitive, apperceptive and representative aspects of fashion design - Side note to neuroaesthetic theory

    Science.gov (United States)

    Csanák, Edit

    2017-10-01

    This article deals with the creative and cognitive process of the creative work from the aspect of fashion design. It is examined through the Cognitive-Apperceptive-Limn process (The CAL), analysing the stages of design work referring to prominent literature, and discussing exciting theories, such the FLOW and the AHA effects are, and the neuro aesthetic theory. Setting them into a new context, the article offers a fresh approach of a designer, rather than a scientific statement based on pragmatic findings. Since theories on artistic performance and creativity can never be enough ‘empirical’, and the process can be never understood enough well…

  12. Transfer of Air Force technical procurement bid set data to small businesses, using CALS and EDI: Test report

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-08-15

    This report documents a test transfer of three Air Force technical procurement bid sets to one large and twelve small businesses, using the Department of Defense (DoD) Continuous Acquisition and Life-cycle Support (CALS) and ANSI ASC X12 Electronic Data Interchange (EDI) standards. The main goal of the test was to evaluate the effectiveness of using CALS technical data within the context of the DoD`s EDI-based standard approach to electronic commerce in procurement, with particular emphasis on receipt and use of the data by small contractors. Air Force procurement data was provided by the Sacramento Air Logistics Center at McClellan Air Force Base; the manufacturing participants were selected from among McClellan`s ``Blue Ribbon`` contractors, located throughout the US. The test was sponsored by the Air Force CALS Test Network, headquartered at Wright-Patterson Air Force Base. The test successfully demonstrated the technical feasibility of including CALS MIL-R-28002 (Raster) engineering data in an EDI Specification/Technical Information transaction set (ANSI ASC X12 841) when issuing electronic requests for quotation to small businesses. In many cases, the data was complete enough for the contractor participant to feel comfortable generating a quote. Lessons learned from the test are being fed back to the CALS and EDI standards organizations, and to future implementors of CALS-EDI based acquisition or contracting systems, which require the transfer of technical information, such as engineering data, manufacturing process data, quality test data, and other product or process data, in the form of a CALS or other digital datafile.

  13. Hot deformation behaviors and processing maps of B{sub 4}C/Al6061 neutron absorber composites

    Energy Technology Data Exchange (ETDEWEB)

    Li, Yu-Li [School of Materials Science and Engineering, Taiyuan University Of Technology, Taiyuan 030024 (China); Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024 (China); Wang, Wen-Xian, E-mail: Wangwenxian@tyut.edu.cn [School of Materials Science and Engineering, Taiyuan University Of Technology, Taiyuan 030024 (China); Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024 (China); Zhou, Jun [School of Materials Science and Engineering, Taiyuan University Of Technology, Taiyuan 030024 (China); Department of Mechanical Engineering, Pennsylvania State University Erie, The Behrend College, Erie, PA 16563 (United States); Chen, Hong-Sheng [School of Materials Science and Engineering, Taiyuan University Of Technology, Taiyuan 030024 (China); Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024 (China)

    2017-02-15

    In this study, the hot deformation behaviors of 30 wt.% B{sub 4}C/Al6061 neutron absorber composites (NACs) have been investigated by conducting isothermal compression tests at temperatures ranging from 653 K to 803 K and strain rates from 0.01 to 10 s{sup −1}. It was found that, during hot compression, the B{sub 4}C/Al6061 NACs exhibited a steady flow characteristic which can be expressed by the Zener-Hollomon parameter as a hyperbolic-sine function of flow stress. High average activation energy (185.62 kJ/mol) of B{sub 4}C/Al6061 NACs is noted in current study owing to the high content of B{sub 4}C particle. The optimum hot working conditions for B{sub 4}C/Al6061 NACs are found to be 760–803 K/0.01–0.05 s{sup −1} based on processing map and microstructure evolution. Typical material instabilities are thought to be attributed to void formation, adiabatic shear bands (ASB), particle debonding, and matrix cracking. Finally, the effect of the plastic deformation zones (PDZs) on the microstructure evolution in this 30 wt.% B{sub 4}C/Al6061 composite is found to be very important. - Highlights: •The hot deformation behavior of the 30 wt.% B{sub 4}C/Al6061 NACs was first analyzed. •The 3D efficiency map and the instability map are developed. •The optimum hot working conditions were identified and validated by SEM and TEM. •The hot deformation schematic diagram of 30 wt.% B{sub 4}C/Al6061 NACs is developed.

  14. Inferencias sobre Grafos

    OpenAIRE

    Sira M. Allende; Carlos N. Bouza

    2002-01-01

    El estudio de un juego puede ser modelado asumiendo que solo algunas partidas son observadas. Entonces el árbol del juego debe ser estimado utilizando información muestral. Similarmente ocurre al obtener información sobre el comportamiento de las decisiones tomadas por individuos muestreados sobre un árbol de decisión teórico. Al considerar una medida de probabilidad que caracterice el comportamiento de redes aleatorias se puede obtener un estimado del árbol asociado. Este problema es el anal...

  15. Sobre software libre

    OpenAIRE

    Matellán Olivera, Vicente; González Barahona, Jesús; Heras Quirós, Pedro de las; Robles Martínez, Gregorio

    2004-01-01

    220 p. "Sobre software libre" reune casi una treintena de ensayos sobre temas de candente actualidad relacionados con el software libre (del cual Linux es su ex- ponente más conocido). Los ensayos que el lector encontrará están divididos en bloques temáticos que van desde la propiedad intelectual o las cuestiones económicas y sociales de este modelo hasta su uso en la educación y las administraciones publicas, pasando por alguno que repasa la historia del software libre en l...

  16. João Pandiá Calógeras

    Directory of Open Access Journals (Sweden)

    Sílvio Fernandes Lopes

    1961-12-01

    Full Text Available A honra de ocupar uma cadeira numa instituição cientí-fica de renome, não é maior, decerto, do que aquela de o fazer à sombra de um vulto de primeira grandeza, a lhe servir de patrono. Dupla honra e dupla responsabilidade, portanto, o que neste momento me toca, pois se a Cadeira pertence ao Instituto Histórico e Geográfico de Santos, entidade que digni-fica a cultura da nossa terra e da nossa gente em vinte e dois anos de trajetória científica e social, a invocação pertence a uma das maiores figuras do Brasil República, o grande Caló-geras, que Afonso de Taunay chamou de "gigante do pensa-mento brasileiro", quando, em discurso de saudação a Rodol-fo Garcia na Academia Brasileira de Letras, verberava que, naquela Academia ilustre, não estivessem três gigantes do pen-samento brasileiro: Pandiá Calógeras, Martim Francisco e Ca-pistrano de Abreu.

  17. The TileCal Online Energy Estimation for the Next LHC Operation Period

    CERN Document Server

    Peralva, B S; The ATLAS collaboration; Cerqueira, A S; Seixas, J M

    2014-01-01

    This work presents a study on the TileCal online energy estimation for the next LHC operation period (Run2). Due to hardware limitation, the algorithm that performs the online energy estimation must remain based on the linear and fast Optimal Filter (OF) technique, which envisages the use of the background covariance matrix in its design. During Run1, TileCal made use of an identity matrix to describe and the background covariance matrix, which showed to be a reasonable approximation for the low luminosity scenario. Under such conditions, the background for most of its cells comprised mainly electronic noise which can be approximated as a uncorrelated Gaussian process. However, as the pile-up introduces a non-Gaussian component to the background, the OF method presents larger variance and it becomes biased. The use of the background covariance matrix in the design of the OF weights is expected to improve the energy estimation performance. The results for the scenario considered show that for high occupancy ce...

  18. The TileCal Energy Reconstruction for LHC Run2 and Future Perspectives

    CERN Document Server

    Seixas, Jose; The ATLAS collaboration

    2015-01-01

    The Tile Calorimeter (TileCal) is the main hadronic calorimeter of ATLAS and it covers the central part of the detector (|η|<1.6). The energy deposited by the particles in TileCal is read out by approximately 10,000 channels. The signal provided by the readout electronics for each channel is digitized at 40 MHz and its amplitude is estimated by an optimal filtering algorithm. The increase of LHC luminosity leads to signal pile-up that deforms the signal of interest and compromises the amplitude estimation performance. This work presents the proposed algorithm for energy estimation during LHC Run 2. The method is based on the same approach used during LHC Run 1, namely the Optimal Filter (OF). The only difference is that the signal baseline (pedestal) will be subtracted from the received digitized samples, while in Run 1 this quantity was estimated on an event-by-event basis. The pedestal value is estimated through special calibration runs and it is stored in a data base for online and offline usage. Addit...

  19. The TileCal Energy Reconstruction for LHC Run2 and Future Perspectives

    CERN Document Server

    INSPIRE-00517880

    2015-01-01

    The TileCal is the main hadronic calorimeter of ATLAS and it covers the central part of the detector ($|\\eta|$ < 1.6). The energy deposited by the particles in TileCal is read out by approximately 10,000 channels. The signal provided by the readout electronics for each channel is digitized at 40 MHz and its amplitude is estimated by an optimal filtering algorithm. The increase of LHC luminosity leads to signal pile-up that deforms the signal of interest and compromises the amplitude estimation performance. This work presents the proposed algorithm for energy estimation during LHC Run 2. The method is based on the same approach used during LHC Run 1, namely the Optimal Filter. The only difference is that the signal baseline (pedestal) will be subtracted from the received digitized samples, while in Run 1 this quantity was estimated on an event-by-event basis. The pedestal value is estimated through special calibration runs and it is stored in a data base for online and offline usage. Additionally, the backg...

  20. The TileCal Energy Reconstruction for LHC Run2 and Future Perspectives

    CERN Document Server

    Seixas, Jose; The ATLAS collaboration

    2015-01-01

    The Tile Calorimeter (TileCal) is the main hadronic calorimeter of ATLAS and it covers the central part of the detector (|eta|<1.6). The energy deposited by the particles in TileCal is read out by approximately 10,000 channels. The signal provided by the readout electronics for each channel is digitized at 40 MHz and its amplitude is estimated by an optimal filtering algorithm. The increase of LHC luminosity leads to signal pile-up that deforms the signal of interest and compromises the amplitude estimation performance. This work presents the proposed algorithm for energy estimation during LHC Run 2. The method is based on the same approach used during LHC Run 1, namely the Optimal Filter (OF). The only difference is that the signal baseline (pedestal) will be subtracted from the received digitized samples, while in Run 1 this quantity was estimated on an event-by-event basis. The pedestal value is estimated through special calibration runs and it is stored in a data base for online and offline usage. Addi...

  1. Firmware Development for the ATLAS TileCal sROD

    CERN Document Server

    Moreno Marti, Pablo; The ATLAS collaboration; Valero, Alberto

    2015-01-01

    TileCal is the central hadronic calorimeter of the ATLAS experiment at the Large Hadron Collider (LHC) at CERN. A main upgrade of the LHC (also called Phase-II) is planned in order to increase the instantaneous luminosity in 2022. At the TileCal level, the upgrade involves the redesign of the complete read-out architecture, affecting both the front-end and the back-end electronics. In the new read-out architecture, the front-end electronics will transmit digitized information of the full detector to the back-end system every single bunch-crossing. Thus, the back-end system must provide digital calibrated information to the first level of trigger. Having all detector data per bunch crossing in the back-end will increase the precision and granularity of the trigger information, improving this way the trigger efficiencies. A reduced part of the detector, 1/256 of the total, will be equipped with the new electronics during 2015 to evaluate the proposed architecture in real conditions in the so-called “demonstra...

  2. Firmware Development for the ATLAS TileCal sROD

    CERN Document Server

    Moreno Marti, Pablo; The ATLAS collaboration; Valero, Alberto

    2015-01-01

    TileCal is the central hadronic calorimeter of the ATLAS experiment at the Large Hadron Collider (LHC) at CERN. A main upgrade of the LHC (also called Phase-II) is planned in order to increase the instantaneous luminosity in 2022. For TileCal, the upgrade involves the redesign of the complete read-out architecture, affecting both the front-end and the back-end electronics. In the new read-out architecture, the front-end electronics will transmit digitized information of the full detector to the back-end system every single bunch-crossing. Thus, the back-end system must provide digital calibrated information to the first level of trigger. Having all detector data per bunch crossing in the back-end will increase the precision and granularity of the trigger information, improving this way the trigger efficiencies. A reduced part of the detector, 1/256 of the total, will be equipped with the new electronics during 2016 to evaluate the proposed architecture in real conditions in the so-called “demonstrator proje...

  3. The Cal-Bridge Program: Supporting Diverse Graduate Students in Astrophysics

    Science.gov (United States)

    Smecker-Hane, Tammy A.; Rudolph, Alexander L.; Abazajian, Kevork; Povich, Matthew S.

    2018-06-01

    The mission of the Cal-Bridge program is to increase the number of underrepresented minority and women students completing a bachelor’s degree and entering a PhD program in astronomy, physics, or closely-related fields. To do so, we have built a network of faculty at diverse higher education institutions, including University of California (UC) campuses, California State Universities (CSUs), and community colleges dedicated to this goal. Students selected for our program are known as Cal-Bridge Scholars, and we give them a wide variety of support: (1) financial scholarships in their junior/senior years at CSU and their first year of graduate school at a UC, (2) intensive mentoring by a pair of CSU and UC faculty members, (3) tutoring, (4) professional development workshops, (5) exposure to research opportunities at various universities, and (6) membership in a growing cohort of like-minded students. In this poster, we report on our work in designing an effective mentoring program and developing tools like our mentoring and graduate application handbooks, and we discuss our tutoring program and the professional development workshops we have designed, and we report on their effectiveness. Funding for this program is provided by NSF-SSTEM Grant #1356133.

  4. CalFitter: a web server for analysis of protein thermal denaturation data.

    Science.gov (United States)

    Mazurenko, Stanislav; Stourac, Jan; Kunka, Antonin; Nedeljkovic, Sava; Bednar, David; Prokop, Zbynek; Damborsky, Jiri

    2018-05-14

    Despite significant advances in the understanding of protein structure-function relationships, revealing protein folding pathways still poses a challenge due to a limited number of relevant experimental tools. Widely-used experimental techniques, such as calorimetry or spectroscopy, critically depend on a proper data analysis. Currently, there are only separate data analysis tools available for each type of experiment with a limited model selection. To address this problem, we have developed the CalFitter web server to be a unified platform for comprehensive data fitting and analysis of protein thermal denaturation data. The server allows simultaneous global data fitting using any combination of input data types and offers 12 protein unfolding pathway models for selection, including irreversible transitions often missing from other tools. The data fitting produces optimal parameter values, their confidence intervals, and statistical information to define unfolding pathways. The server provides an interactive and easy-to-use interface that allows users to directly analyse input datasets and simulate modelled output based on the model parameters. CalFitter web server is available free at https://loschmidt.chemi.muni.cz/calfitter/.

  5. NO2 fluxes from Tijuana using a mobile mini-DOAS during Cal-Mex 2010

    Science.gov (United States)

    Rivera, Claudia; Barrera, Hugo; Grutter, Michel; Zavala, Miguel; Galle, Bo; Bei, Naifang; Li, Guohui; Molina, Luisa T.

    2013-05-01

    NO2 fluxes were measured using a mobile mini-DOAS during Cal-Mex 2010 field study, between May 15 and June 30, 2010, from the urban area of Tijuana, Baja California as well as the Rosarito power plant. The average calculated NO2 fluxes were 328 ± 184 (269 ± 201) g s-1, and 23.4 ± 4.9 (12.9 ± 11.9) g s-1 for Tijuana urban area and Rosarito power plant, respectively, using model based wind fields and onsite measurements (in parenthesis). Wind speed and wind direction data needed to estimate the fluxes were both modeled and obtained from radiosondes launched regularly during the field campaign, whereas the mixing layer height throughout the entire field campaign was measured using a ceilometer. Large variations in the NO2 fluxes from both the Tijuana urban area and Rosarito power plant were observed during Cal-Mex 2010; however, the variability was less when model based wind fields were used. Qualitative comparisons of modeled and measured plumes from the Tijuana urban area and Rosarito power plant showed good agreement.

  6. Study of TileCal scintillator irradiation using the minimum bias integrators

    CERN Document Server

    AUTHOR|(INSPIRE)INSPIRE-00387867; The ATLAS collaboration

    2016-01-01

    The Tile Calorimeter (TileCal) is the central hadronic calorimeter of the ATLAS experiment at the LHC. It provides precise energy measurements of hadrons, jets, taus and missing transverse energy. The monitoring and calibration of the calorimeter response at each stage of the signal development is done by a movable $^{137}$Cs radioactive source, a laser calibration system and a charge injection system. Moreover, during LHC data taking, an integrator-based readout provides the signals coming from inelastic proton-proton collisions at predominantly low momentum transfer (minimum bias events) and allows monitoring of the instantaneous ATLAS luminosity as well as the response of calorimeter cells. The integrator currents have been used to detect and quantify the effect of TileCal scintillator irradiation using the data taken in 2012 and 2015 that correspond to about 22 fb$^{−1}$ and 4 fb$^{−1}$ of integrated luminosity, respectively. Finally, the response variation for an irradiated cell has been studied comb...

  7. All partial breakings in ${\\cal N}=2$ supergravity with a single hypermultiplet arXiv

    CERN Document Server

    Antoniadis, Ignatios; Petropoulos, P. Marios; Siampos, Konstantinos

    We consider partial supersymmetry breaking in ${\\cal N}=2$ supergravity coupled to a single vector and a single hypermultiplet. This breaking pattern is in principle possible if the quaternion-K\\"ahler space of the hypermultiplet admits (at least) one pair of commuting isometries. For this class of manifolds, explicit metrics exist and we analyse a generic electro-magnetic (dyonic) gauging of the isometries. An example of partial breaking in Minkowski spacetime has been found long ago by Ferrara, Girardello and Porrati, using the gauging of two translation isometries on $SO(4,1)/SO(4)$. We demonstrate that no other example of partial breaking of ${\\cal N}=2$ supergravity in Minkowski spacetime exists. We also examine partial-breaking vacua in anti-de Sitter spacetime that are much less constrained and exist generically even for electric gaugings. On $SO(4,1)/SO(4)$, we construct the partially-broken solution and its global limit which is the Antoniadis-Partouche-Taylor model.

  8. Characterization of emissions sources in the California-Mexico Border Region during Cal-Mex 2010

    Science.gov (United States)

    Zavala, M. A.; Lei, W.; Li, G.; Bei, N.; Barrera, H.; Tejeda, D.; Molina, L. T.; Cal-Mex 2010 Emissions Team

    2010-12-01

    The California-Mexico border region provides an opportunity to evaluate the characteristics of the emission processes in rapidly expanding urban areas where intensive international trade and commerce activities occur. Intense anthropogenic activities, biomass burning, as well as biological and geological sources significantly contribute to high concentration levels of particulate matter (PM), polycyclic aromatic hydrocarbons (PAHs), nitrogen oxides (NOx), volatile organic compounds (VOCs), air toxics, and ozone observed in the California-US Baja California-Mexico border region. The continued efforts by Mexico and US for improving and updating the emissions inventories in the sister cities of San Diego-Tijuana and Calexico-Mexicali has helped to understand the emission processes in the border region. In addition, the recent Cal-Mex 2010 field campaign included a series of measurements aimed at characterizing the emissions from major sources in the California-Mexico border region. In this work we will present our analyzes of the data obtained during Cal-Mex 2010 for the characterization of the emission sources and their use for the evaluation of the recent emissions inventories for the Mexican cities of Tijuana and Mexicali. The developed emissions inventories will be implemented in concurrent air quality modeling efforts for understanding the physical and chemical transformations of air pollutants in the California-Mexico border region and their impacts.

  9. The TileCal Online Energy Estimation for the Next LHC Operation Period

    CERN Document Server

    Peralva, B S; The ATLAS collaboration

    2014-01-01

    The ATLAS Tile Calorimeter (TileCal) is the detector used in the reconstruction of hadrons, jets, muons and missing transverse energy from the proton-proton collisions at the Large Hadron Collider (LHC). It covers the central part of the ATLAS detector (|η|<1.6). The energy deposited by the particles is read out by approximately 5,000 cells, with double readout channels. The signal provided by the readout electronics for each channel is digitized at 40 MHz and its amplitude is estimated by an optimal filtering algorithm, which expects a single signal with a well-defined shape. However, the LHC luminosity is expected to increase leading to signal pile-up that deforms the signal of interest. Due to limited resources, the current DSP-based hardware setup does not allow the implementation of sophisticated energy estimation methods that deal with the pile-up. Therefore, the technique to be employed for online energy estimation in TileCal for next LHC operation period must be based on fast filters such as the M...

  10. TEM study of soot, organic aerosol, and sea-salt particles collected during CalNex

    Science.gov (United States)

    Adachi, K.; Buseck, P. R.

    2010-12-01

    Anthropogenic aerosol particles are emitted in abundance from megacities. Those particles can have important effects on both human health and climate. In this study, aerosol particles having aerodynamic diameters between 50 and 300 nm were collected during the CalNex campaign at the Pasadena ground site from May 15 to June 15, 2010, ~15 km northeast of downtown Los Angeles. The samples were analyzed using transmission electron microscopes (TEMs) to characterize particle shapes and compositions. Most samples are dominated by soot, organic aerosol (OA), sulfate, sea salt, or combinations thereof. Sizes and amounts of OA particles increased during the afternoons, and most soot particles were internally mixed with OA and sulfate in the afternoons. The proportion of soot to other material in individual particles increased and soot particles were more compact during the nights and early mornings. Sea-salt particles were commonly internally mixed with other materials. They have high Na contents with lesser N, Mg, S, K, and Ca and almost no Cl, suggesting that the Cl was replaced by sulfate or nitrate in the atmosphere. There is less OA and more sea salt and sulfate in the CalNex samples than in the samples from Mexico City that were collected during the MILAGRO campaign. Our study indicates that compositions of internally mixed aerosol particles and shapes of soot particles change significantly within a day. These changes probably influence the estimates of their effects on human health and climate.

  11. Supersoft X-Ray Source CAL 83: A Possible AE Aqr-like System

    Directory of Open Access Journals (Sweden)

    A. Odendaal

    2015-02-01

    Full Text Available CAL83 is a close binary supersoft X-ray source in the Large Magellanic Cloud. A ~67 s periodicity detected in supersoft X-rays is most probably associated with the spin period of a highly spun-up white dwarf (WD. The variability in the period is ascribed to the obscuration of the WD by the hydrogen burning envelope surrounding it, rotating with a period that is close to, but not quite synchronized with, the WD rotation period. Optical spectra obtained with SALT exhibit accretion disc emission lines with broad wing structures and P Cyg profiles, indicating mass outflows. Timing analysis of photometrical observations performed at the South African Astronomical Observatory (SAAO revealed variable signals at ≤1 mHz which are thought to be associated with quasi-periodic oscillations from an accretion disc. The short spin period inferred for CAL83 can be the result of spin-up by accretion disc torques during a long mass transfer history, placing this source on a similar evolutionary track as the cataclysmic variable AE Aqr.

  12. Uso de Sistema de Informação Geográfica na Gestão do Marketing Mix: o caso de uma rede de calçados femininos

    Directory of Open Access Journals (Sweden)

    Rafaela Almeida Cordeiro

    2017-04-01

    Full Text Available O caso refere-se a uma rede de lojas de calçado feminino (Rede A que enfrenta problemas de estoque. A empresa não usa informações sobre clientes e localização do ponto de venda para renovar seu estoque, o que gera diminuição das vendas, excesso de produtos em algumas lojas e ruptura em outras, já que os modelos dos calçados adquiridos chegam a ser superiores (inferiores à demanda. Assim, o objetivo do trabalho é mostrar como as ferramentas de Sistema de Informação Geográfica (SIG podem ser aplicadas para solucionar o problema utilizando dados do Instituto Brasileiro de Geografia e Estatística (IBGE. Observou-se que a gestão do composto de marketing da Rede A não está alinhada ao seu público alvo e potencial. A análise forneceu insights para ações a serem tomadas em relação ao mix de produtos das lojas, à precificação, à localização dos pontos de venda e ao posicionamento da marca. As contribuições das ferramentas de geomarketing e geoinformação são fundamentais para as decisões de varejo. A técnica de geoprocessamento permite analisar fenômenos e distribuições aplicadas ao marketing na medida em que auxiliam na identificar de padrões, além de utilizar, simultaneamente, inúmeros bancos de dados. Este trabalho contribui para ampliar a discussão sobre as ferramentas SIG na área de marketing e para mostrar como ferramentas e dados gratuitos podem ser fortes aliados ao negócio.

  13. Bioquímica sanguínea y concentración plasmática de corticosterona en pollo de engorde bajo estrés calórico

    Directory of Open Access Journals (Sweden)

    Elvis Alexander Díaz López

    2014-07-01

    Full Text Available Las altas temperaturas ambientales propician susceptibilidad al estrés calórico en los pollos de engorde, lo que genera cambios metabólicos. Se buscó determinar los cambios en la bioquímica sanguínea y la concentración plasmática de corticosterona del pollo de engorde sometido a estrés calórico crónico y a las condiciones de temperatura ambiental del piedemonte amazónico colombiano, sobre las concentraciones plasmáticas de corticosterona, glucosa, proteínas totales, albumina, globulina, sodio, cloro, potasio, magnesio, fósforo y calcio. Se utilizaron pollos machos de 2 estirpes de 21 días de edad, distribuidos en un diseño experimental irrestrictamente al azar, en un esquema bifactorial, con 4 tratamientos. Se hicieron 5 repeticiones por tratamiento y 25 animales por unidad experimental. Las aves fueron alimentadas con una dieta básica de maíz y torta de soya con 3,100 Kcal de EM y 19,5 % de proteína hasta los 42 días de edad. El factor estirpe no tuvo efecto en las variables evaluadas (p ≥ 0,05. No obstante, existió diferencia estadística significativa (p ≤ 0,05 en todas las variables evaluadas al ser comparadas las concentraciones de los metabolitos de las aves en condiciones de estrés calórico crónico con las de las aves expuestas a las condiciones de temperatura del piedemonte amazónico colombiano. Se concluyó que la bioquímica sanguínea sufrió modificaciones significativas bajo las 2 temperaturas experimentales, con mayor detrimento fisiológico de las aves con estrés calórico crónico. La concentración de corticosterona se constituyó en el indicador más sensible y constante de la condición fisiológica de estrés crónico por calor.

  14. Transfer of Air Force technical procurement bid set data to small businesses, using CALS and EDI. Summary report. Revision 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-01-10

    This report provides a summary of the Air Force CALS Test Network (AFCTN) Test Report Transfer of Air Force Technical Procurement Bid Set Data to Small Businesses, Using CALS and EDI (AFCTN Test Report 94-034, UCRL-ID-118619). It represents a synthesis of the results, conclusions, and recommendations, as well as a more concise presentation of the issues and strategies as viewed from AFCTN`s perspective. This report documents a test transfer of three Air Force technical procurement bid sets to one large and twelve small businesses, using the Department of Defense (DoD) Continuous Acquisition and Life-cycle Support (CALS) and ANSI ASC X12 Electronic Data Interchange (EDI) standards. The main goal of the test was to evaluate the effectiveness of using CALS technical data within the context of the DoD`s EDI-based standard approach to electronic commerce in procurement, with particular emphasis on receipt and use of the data by small contractors. Air Force procurement data was provided by the Sacramento Air Logistics Center at McClellan Air Force Base; the manufacturing participants were selected from among McClellan`s {open_quote}Blue Ribbon{close_quote} contractors, located throughout the United States. The test was sponsored by the Air Force CALS Test Network, headquartered at Wright-Patterson Air Force Base. The test successfully demonstrated the technical feasibility of including CALS MIL-R-28002 (Raster) engineering data in an EDI Specification/Technical Information transaction set (ANSI ASC X12 841) when issuing electronic requests for quotation to small businesses. In many cases, the data was complete enough for the contractor participant to feel comfortable generating a quote.

  15. REMOCIÓN DE MICROORGANISMOS PATÓGENOS PRESENTES EN UN LICOR MIXTO BAJO CONDICIONES DE LABORATORIO EMPLEANDO FILTROS EMPACADOS EN ZEOLITA NATURAL REMOVAL OF PATHOGENIC MICROORGANISMS PRESENT IN MIXED LIQUOUR UNDER LABORATORY CONDITIONS BY USING FILTERS PACKED IN NATURAL ZEOLITE

    Directory of Open Access Journals (Sweden)

    Diana Rocío Acevedo Cifuentes

    2012-12-01

    Full Text Available En este artículo, se presentan los resultados obtenidos en la remoción de coliformes totales, coliformes fecales y salmonella-shigella, presentes en un licor mixto proveniente de la planta de tratamiento de aguas residuales San Fernando (Medellín, Colombia, mediante el uso de una batería de filtros empacados en zeolita clinoptilolita. La experimentación se desarrolló bajo condiciones controladas de caudal y pH, a temperatura ambiente. Se empleó zeolita natural tipo clinoptilolita la cual se activó con solución salina y secado, se empacó en una batería compuesta por dos filtros, uno de flujo descendente y otro de flujo ascendente, para facilitar el contacto de la solución contaminada y el material adsorbente (zeolita. Se realizaron cinco ensayos independientes y al final de cada uno de ellos se lavó y se activó el material zeolítico antes de comenzar el siguiente. En cada ensayo se tomaron tres muestras. Se encontró que la eficiencia de los filtros bajo las condiciones específicas de diseño fue significativamente alta en la remoción de los patógenos evaluados, y el porcentaje de remoción fue independiente del valor de la concentración a la entrada del filtro. Además, la eficiencia en la remoción de los patógenos evaluados no dependió del tipo de microorganismo.This article displays results obtained when total coliforms, fecal coliforms, and Salmonella shigella were removed from mixed liquor taken from San Fernando waste water treatment plant in Medellín, Colombia, by using a battery of filters packed in zeolite clinoptilolite. Experiments were developed under controlled conditions of flow and pH at room temperature. Natural clinoptilolite-type zeolite was used activated with saline solution and drying; it was packed in a battery consisting of two filters (a downward-flow filter and an upward-flow filter in order to make contact of contaminated solution and adsorbent material (zeolite easier. Five independent tests were

  16. CalWater 2 - Precipitation, Aerosols, and Pacific Atmospheric Rivers Experiment

    Science.gov (United States)

    Spackman, Ryan; Ralph, Marty; Prather, Kim; Cayan, Dan; DeMott, Paul; Dettinger, Mike; Fairall, Chris; Leung, Ruby; Rosenfeld, Daniel; Rutledge, Steven; Waliser, Duane; White, Allen

    2014-05-01

    Emerging research has identified two phenomena that play key roles in the variability of the water supply and the incidence of extreme precipitation events along the West Coast of the United States. These phenomena include the role of (1) atmospheric rivers (ARs) in delivering much of the precipitation associated with major storms along the U.S. West Coast, and (2) aerosols—from local sources as well as those transported from remote continents—and their modulating effects on western U.S. precipitation. A better understanding of these processes is needed to reduce uncertainties in weather predictions and climate projections of extreme precipitation and its effects, including the provision of beneficial water supply. This presentation summarizes science gaps associated with (1) the evolution and structure of ARs including cloud and precipitation processes and air-sea interaction, and (2) aerosol interaction with ARs and the impact on precipitation, including locally-generated aerosol effects on orographic precipitation along the U.S. West Coast. Observations are proposed for multiple winter seasons as part of a 5-year broad interagency vision referred to as CalWater 2 to address these science gaps (http://esrl.noaa.gov/psd/calwater). In the near term, a science investigation is being planned including a targeted set of aircraft and ship-based measurements and associated evaluation of data in near-shore regions of California and in the eastern Pacific for an intensive observing period between January 2015 and March 2015. DOE's Atmospheric Radiation Measurement (ARM) program and NOAA are coordinating on deployment of airborne and ship-borne facilities for this period in a DOE-sponsored study called ACAPEX (ARM Cloud Aerosol and Precipitation Experiment) to complement CalWater 2. The motivation for this major study is based on findings that have emerged in the last few years from airborne and ground-based studies including CalWater and NOAA's HydroMeterology Testbed

  17. Inferencias sobre Grafos

    Directory of Open Access Journals (Sweden)

    Sira M. Allende

    2002-05-01

    Full Text Available El estudio de un juego puede ser modelado asumiendo que solo algunas partidas son observadas. Entonces el árbol del juego debe ser estimado utilizando información muestral. Similarmente ocurre al obtener información sobre el comportamiento de las decisiones tomadas por individuos muestreados sobre un árbol de decisión teórico. Al considerar una medida de probabilidad que caracterice el comportamiento de redes aleatorias se puede obtener un estimado del árbol asociado. Este problema es el analizado en este trabajo. Algunos resultados experimentales obtenidos usando Recocido Simulado ilustran el procedimiento. Su papel en el estudio de modelos económicos y de mercadeo es discutido.

  18. Escrito sobre el cuerpo

    Directory of Open Access Journals (Sweden)

    Antonio Malalana Ureña

    2013-09-01

    Full Text Available El catálogo, en una edición bilingüe español-inglés, es una pequeña guía de la exposición Shirin Neshat. Escrito sobre el cuerpo, muestra que se integra dentro de los actos de PHOTOESPAÑA13, el festival internacional de fotografía y artes visuales. El esquema del libro es sencillo y los textos son extremadamente divulgativos. El primero de ellos, Escrito sobre el cuerpo (pp. 10-15, cuyo autor es Octavio Zaya, comisario de la exposición, resume la trayectoria de esta intelectual, que "interactúa" con la fotografía y los formatos audiovisuales, y nos presenta la argumentación narrativa de los documentos expuestos, contextualizando la obra recopilada.

  19. Spectral analysis of the IntCal98 calibration curve: a Bayesian view

    International Nuclear Information System (INIS)

    Palonen, V.; Tikkanen, P.

    2004-01-01

    Preliminary results from a Bayesian approach to find periodicities in the IntCal98 calibration curve are given. It has been shown in the literature that the discrete Fourier transform (Schuster periodogram) corresponds to the use of an approximate Bayesian model of one harmonic frequency and Gaussian noise. Advantages of the Bayesian approach include the possibility to use models for variable, attenuated and multiple frequencies, the capability to analyze unevenly spaced data and the possibility to assess the significance and uncertainties of spectral estimates. In this work, a new Bayesian model using random walk noise to take care of the trend in the data is developed. Both Bayesian models are described and the first results of the new model are reported and compared with results from straightforward discrete-Fourier-transform and maximum-entropy-method spectral analyses

  20. Altimetry, bathymetry and geoid variations at the Gavdos permanent Cal/Val facility

    DEFF Research Database (Denmark)

    Mertikas, Stelios P.; Daskalakis, Antonis; Tziavos, Ilias N.

    2013-01-01

    The aim of this work has been to examine the relationship of steep bathymetry in the coastal areas around the permanent Cal/Val facility of Gavdos, and their influence on the produced calibration values for the Jason-2 satellite altimeter. The paper describes how changes in seafloor topography...... (from 200 to 3500m depth over a distance of 10km) are reflected on the determined altimeter parameters using different reference surfaces for satellite calibration. Finally, it describes the relation between these parameter trends and the region’s local characteristics.Using 3.5years of Jason-2...... to be related to the general oceanographic circulation, but others of short wavelength (in the order of 1km) are because of the insufficient geoid model resolution. Along Pass No. 109, the concealed effect of bathymetry on the geoid has produced a slope of 3.1cm over 14–21km from Gavdos. Along the other Pass No...

  1. Practical Aspects of CALS in Design and Manufacturing of Sheet Metal Products

    DEFF Research Database (Denmark)

    Shpitalni, Moshe; Alting, Leo; Bilberg, Arne

    1998-01-01

    The transition from design to process planning and to the various stages of manufacturing is traditionally sequential. In many cases, practical problems associated with manufacturing cannot be resolved if only individual processes are examined. These problems can be overcome, however, by adopting...... with the design and manufacture of sheet metal parts. It is demonstrated that through implementation of the CALS approach, the overall process can be optimised and products can be manufactured significantly more accurately, faster and less expensively.......The transition from design to process planning and to the various stages of manufacturing is traditionally sequential. In many cases, practical problems associated with manufacturing cannot be resolved if only individual processes are examined. These problems can be overcome, however, by adopting...

  2. Layered growth model and epitaxial growth structures for SiCAlN alloys

    International Nuclear Information System (INIS)

    Liu Zhaoqing; Ni Jun; Su Xiaoao; Dai Zhenhong

    2009-01-01

    Epitaxial growth structures for (SiC) 1-x (AlN) x alloys are studied using a layered growth model. First-principle calculations are used to determine the parameters in the layered growth model. The phase diagrams of epitaxial growth are given. There is a rich variety of the new metastable polytype structures at x=1/6 ,1/5 ,1/4 ,1/3 , and 1/2 in the layered growth phase diagrams. We have also calculated the electronic properties of the short periodical SiCAlN alloys predicted by our layered growth model. The results show that various ordered structures of (SiC) 1-x (AlN) x alloys with the band gaps over a wide range are possible to be synthesized by epitaxial growth.

  3. Morfometria de fibroblastos e fibrócitos durante o processo cicatricial na pele de coelhos da raça Nova Zelândia Branco tratados com calêndula Morphometry of fibroblasts and fibrocytes during wound healing in the skin of rabbits of the New Zeland White breed treated with marigold

    Directory of Open Access Journals (Sweden)

    Leonardo de Oliveira Pagnano

    2008-09-01

    Full Text Available O objetivo deste estudo foi avaliar a capacidade cicatrizante da calêndula (Calendula officinalis L. sobre feridas cutâneas experimentais, em 15 coelhos, distribuídos em três grupos denominados: excipiente, calêndula e controle. Cada animal foi submetido à uma incisão cirúrgica de 6cm de comprimento, lateral à coluna vertebral e suturada no padrão U. Os produtos avaliados foram colocados sobre as incisões durante sete dias na quantidade de 0,1ml (loção cremosa não-iônica - grupo excipiente; tintura de calêndula a 5% - grupo calêndula e nos animais do grupo controle não se utilizou nenhum produto. A biópsia de pele foi realizada no 1°, 3°, 5° e 7° dia após a incisão cirúrgica para avaliação morfométrica do processo cicatricial, analisando-se o número de fibroblastos e fibrócitos. A morfometria foi realizada por meio de microscópio óptico adaptado a um sistema computadorizado de análise de imagens. De acordo com os resultados, a calêndula propiciou obtenção dos maiores valores médios das células envolvidas no processo cicatricial, os fibroblastos, deduzindo que a mesma, inferiu uma resposta mais satisfatória na cicatrização em relação aos demais tratamentos.The aim of this study was to evaluate the scarring capability of marigold (Calendula officinalis L. on experimental skin wounds in 15 rabbits, distributed in three groups: excipient, marigold and control. Each animal was subjected to a surgical incision measuring 6cm in length, laterally to the spinal column and sutured in U-shape. Products evaluated were placed on the incisions for 7 days, at a rate of 0.1ml (nonionic creamy lotion - excipient group; 5% marigold extract and no treatment was provided to control animals. Skin biopsy was performed on 1, 3, 5, and 7 days after wounding, for morphometric and cicatricial process evaluations. The morphometry was performed with an optical microscope adapted to a computadorized picture analysis system. The

  4. The Adaptation Study of the Questionnaires of the Attitude towards CALL (A-CALL), the Attitude towards CAL (A-CAL), the Attitude towards Foreign Language Learning (A-FLL) to Turkish Language

    Science.gov (United States)

    Erdem, Cahit; Saykili, Abdullah; Kocyigit, Mehmet

    2018-01-01

    This study primarily aims to adapt the Foreign Language Learning (FLL), Computer assisted Learning (CAL) and Computer assisted Language Learning (CALL) scales developed by Vandewaetere and Desmet into Turkish context. The instrument consists of three scales which are "the attitude towards CALL questionnaire" ("A-CALL")…

  5. Droplet activation properties of organic aerosols observed at an urban site during CalNex-LA

    Energy Technology Data Exchange (ETDEWEB)

    Mei, Fan [Brookhaven National Laboratory, Upton New York USA; Pacific Northwest National Laboratory, Richland Washington USA; Hayes, Patrick L. [Cooperative Institute for Research in Environmental Sciences, Boulder Colorado USA; Department of Chemistry and Biochemistry, University of Colorado, Boulder Colorado USA; Ortega, Amber [Cooperative Institute for Research in Environmental Sciences, Boulder Colorado USA; Department of Chemistry and Biochemistry, University of Colorado, Boulder Colorado USA; Taylor, Jonathan W. [School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Manchester UK; Allan, James D. [School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Manchester UK; National Centre for Atmospheric Science, University of Manchester, Manchester UK; Gilman, Jessica [NOAA Earth System Research Laboratory, Boulder Colorado USA; Kuster, William [NOAA Earth System Research Laboratory, Boulder Colorado USA; de Gouw, Joost [NOAA Earth System Research Laboratory, Boulder Colorado USA; Jimenez, Jose L. [Cooperative Institute for Research in Environmental Sciences, Boulder Colorado USA; Department of Chemistry and Biochemistry, University of Colorado, Boulder Colorado USA; Wang, Jian [Brookhaven National Laboratory, Upton New York USA

    2013-04-11

    Size-resolved cloud condensation nuclei (CCN) spectra and aerosol chemical composition were characterized at an urban supersite in Pasadena, California, from 15 May to 4 June 2010, during the CalNex campaign. The derived hygroscopicity (κCCN) of CCN-active particles with diameter between 97 and 165 nm ranged from 0.05 to 0.4. Diurnal variation showed a slight decrease of κCCN from 8:00 to 16:00 (from 0.24 to 0.20), which is attributed to increasing organics volume fraction resulted from secondary organic aerosol (SOA) formation. The derived hygroscopicity distribution and maximum activated fraction of the size selected particles were examined as functions of photochemical age. The result indicates that condensation of secondary species (e.g., SOA and sulfate) quickly converted hydrophobic particles to hydrophilic ones, and during daytime, nearly every particle became a CCN at ~0.4% in just a few hours. Based on κCCN and aerosol chemical composition, the organic hygroscopicity (κorg) was derived, and ranged from 0.05 to 0.23 with an average value of 0.13, consistent with the results from earlier studies. The derived κorg generally increased with the organic oxidation level, and most of the variation in κorg could be explained by the variation of the organic O : C atomic ratio alone. The least squares fit of the data yielded κorg = (0.83 ± 0.06) × (O:C) + (-0.19 ± 0.02). Compared to previous results based on CCN measurements of laboratory generated aerosols, κorg derived from measurements during the CalNex campaign exhibited stronger increase with O : C atomic ratio and therefore substantially higher values for organics with average O : C greater than 0.5.

  6. CalWater 2 - Precipitation, Aerosols, and Pacific Atmospheric Rivers Experiment

    Science.gov (United States)

    Spackman, J. R.; Ralph, F. M.; Prather, K. A.; Cayan, D. R.; DeMott, P. J.; Dettinger, M. D.; Fairall, C. W.; Leung, L. R.; Rosenfeld, D.; Rutledge, S. A.; Waliser, D. E.; White, A. B.

    2014-12-01

    Emerging research has identified two phenomena that play key roles in the variability of the water supply and the incidence of extreme precipitation events along the West Coast of the United States. These phenomena include the role of (1) atmospheric rivers (ARs) in delivering much of the precipitation associated with major storms along the U.S. West Coast, and (2) aerosols—from local sources as well as those transported from remote continents—and their modulating effects on western U.S. precipitation. A better understanding of these processes is needed to reduce uncertainties in weather predictions and climate projections of extreme precipitation and its effects, including the provision of beneficial water supply. This presentation summarizes the science objectives and strategies to address gaps associated with (1) the evolution and structure of ARs including cloud and precipitation processes and air-sea interaction, and (2) aerosol interaction with ARs and the impact on precipitation, including locally-generated aerosol effects on orographic precipitation along the U.S. West Coast. Observations are proposed for multiple winter seasons as part of a 5-year broad interagency vision referred to as CalWater 2 to address these science gaps (http://esrl.noaa.gov/psd/calwater). In January-February 2015, a field campaign has been planned consisting of a targeted set of aircraft and ship-based measurements and associated evaluation of data in near-shore regions of California and in the eastern Pacific. In close coordination with NOAA, DOE's Atmospheric Radiation Measurement (ARM) program is also contributing air and shipborne facilities for ACAPEX (ARM Cloud Aerosol and Precipitation Experiment), a DOE-sponsored study complementing CalWater 2. Ground-based measurements from NOAA's HydroMeteorological Testbed (HMT) network in California and aerosol chemical instrumentation at Bodega Bay, California have been designed to add important near surface-level context for the

  7. Estabilidade aeróbia, pH e dinâmica de desenvolvimento de microrganismos da cana-de-açúcar in natura hidrolisada com cal virgem Aerobic stability, pH and development dynamic of microorganisms on fresh sugarcane hydrolyzed with whitewash

    Directory of Open Access Journals (Sweden)

    F.N. Domingues

    2011-04-01

    Full Text Available Objetivou-se com este trabalho avaliar o efeito da adição de cal virgem e dos tempos após a aplicação sobre a estabilidade aeróbia e o crescimento de microrganismos (leveduras e fungos na cana-de-açúcar in natura. O delineamento experimental utilizado foi o inteiramente casualizado, com quatro repetições. Avaliaram-se a estabilidade aeróbia (temperatura, a dinâmica de desenvolvimento de leveduras e fungos e o pH, em um esquema de parcelas subdivididas, com cinco doses de cal (0; 0,5; 1,0; 1,5 e 2,0% e cinco tempos após aplicação (0, 24, 48, 72, 96 horas. Houve efeito significativo das doses de cal para todos os parâmetros avaliados. A cana que não foi tratada com cal (0% apresentou quebra da estabilidade no menor intervalo de tempo. Os valores de pH aumentaram gradativamente de acordo com a dose de cal aplicada e diminuíram com o tempo após aplicação. Houve aumento numérico na contagem de leveduras até as 72 horas após a aplicação da cal, independentemente da dose, e os valores tenderam a estabilizar no tempo de 96 horas pós-tratamento. Não houve efeito significativo das doses de cal sobre o desenvolvimento dos fungos. A aplicação de cal virgem é eficaz no controle do crescimento de leveduras e aumenta a estabilidade aeróbia da cana-de-açúcar in natura.The objective of this work was to evaluate the effect of whitewash addition and the times after application on aerobic stability and growth of microorganisms (fungi and yeasts in fresh sugarcane. It was used a completely randomized experimental design, with four replications. Aerobic stability (temperature and the concentrations of yeast and fungus and pH were evaluated in a split-splot scheme with five doses of whitewash (0; 0.5; 1.0; 1.5 and 2.0% and five times after treatment (0, 24, 48, 72 and 96 hours. There was a significant effect of doses of whitewash for all evaluated parameters. The sugarcane which was not treated with whitewash (0.0% showed a break in

  8. Retooling CalEnviroScreen: Cumulative Pollution Burden and Race-Based Environmental Health Vulnerabilities in California

    Science.gov (United States)

    2018-01-01

    The California Community Environmental Health Screening Tool (CalEnviroScreen) advances research and policy pertaining to environmental health vulnerability. However, CalEnviroScreen departs from its historical foundations and comparable screening tools by no longer considering racial status as an indicator of environmental health vulnerability and predictor of cumulative pollution burden. This study used conceptual frameworks and analytical techniques from environmental health and inequality literature to address the limitations of CalEnviroScreen, especially its inattention to race-based environmental health vulnerabilities. It developed an adjusted measure of cumulative pollution burden from the CalEnviroScreen 2.0 data that facilitates multivariate analyses of the effect of neighborhood racial composition on cumulative pollution burden, net of other indicators of population vulnerability, traffic density, industrial zoning, and local and regional clustering of pollution burden. Principal component analyses produced three new measures of population vulnerability, including Latina/o cumulative disadvantage that represents the spatial concentration of Latinas/os, economic disadvantage, limited English-speaking ability, and health vulnerability. Spatial error regression analyses demonstrated that concentrations of Latinas/os, followed by Latina/o cumulative disadvantage, are the strongest demographic determinants of adjusted cumulative pollution burden. Findings have implications for research and policy pertaining to cumulative impacts and race-based environmental health vulnerabilities within and beyond California. PMID:29659481

  9. Retooling CalEnviroScreen: Cumulative Pollution Burden and Race-Based Environmental Health Vulnerabilities in California

    Directory of Open Access Journals (Sweden)

    Raoul S. Liévanos

    2018-04-01

    Full Text Available The California Community Environmental Health Screening Tool (CalEnviroScreen advances research and policy pertaining to environmental health vulnerability. However, CalEnviroScreen departs from its historical foundations and comparable screening tools by no longer considering racial status as an indicator of environmental health vulnerability and predictor of cumulative pollution burden. This study used conceptual frameworks and analytical techniques from environmental health and inequality literature to address the limitations of CalEnviroScreen, especially its inattention to race-based environmental health vulnerabilities. It developed an adjusted measure of cumulative pollution burden from the CalEnviroScreen 2.0 data that facilitates multivariate analyses of the effect of neighborhood racial composition on cumulative pollution burden, net of other indicators of population vulnerability, traffic density, industrial zoning, and local and regional clustering of pollution burden. Principal component analyses produced three new measures of population vulnerability, including Latina/o cumulative disadvantage that represents the spatial concentration of Latinas/os, economic disadvantage, limited English-speaking ability, and health vulnerability. Spatial error regression analyses demonstrated that concentrations of Latinas/os, followed by Latina/o cumulative disadvantage, are the strongest demographic determinants of adjusted cumulative pollution burden. Findings have implications for research and policy pertaining to cumulative impacts and race-based environmental health vulnerabilities within and beyond California.

  10. 77 FR 77183 - Union Pacific Railroad Company-Abandonment of Freight Easement Exemption-in Alameda County, Cal...

    Science.gov (United States)

    2012-12-31

    ...--Abandonment of Residual Common Carrier Obligation Exemption--in Alameda County, Cal. (San Jose Industrial Lead... easement on, and for SCVTA, the owner of the line, to abandon its residual common carrier obligation for, a portion of the San Jose Industrial Lead between mileposts 5.38 and 7.35 near the Warm Springs freight rail...

  11. Retooling CalEnviroScreen: Cumulative Pollution Burden and Race-Based Environmental Health Vulnerabilities in California.

    Science.gov (United States)

    Liévanos, Raoul S

    2018-04-16

    The California Community Environmental Health Screening Tool (CalEnviroScreen) advances research and policy pertaining to environmental health vulnerability. However, CalEnviroScreen departs from its historical foundations and comparable screening tools by no longer considering racial status as an indicator of environmental health vulnerability and predictor of cumulative pollution burden. This study used conceptual frameworks and analytical techniques from environmental health and inequality literature to address the limitations of CalEnviroScreen, especially its inattention to race-based environmental health vulnerabilities. It developed an adjusted measure of cumulative pollution burden from the CalEnviroScreen 2.0 data that facilitates multivariate analyses of the effect of neighborhood racial composition on cumulative pollution burden, net of other indicators of population vulnerability, traffic density, industrial zoning, and local and regional clustering of pollution burden. Principal component analyses produced three new measures of population vulnerability, including Latina/o cumulative disadvantage that represents the spatial concentration of Latinas/os, economic disadvantage, limited English-speaking ability, and health vulnerability. Spatial error regression analyses demonstrated that concentrations of Latinas/os, followed by Latina/o cumulative disadvantage, are the strongest demographic determinants of adjusted cumulative pollution burden. Findings have implications for research and policy pertaining to cumulative impacts and race-based environmental health vulnerabilities within and beyond California.

  12. Neolithisation of the Aegean and Southeast Europe during the 6600–6000 calBC period of Rapid Climate Change

    Directory of Open Access Journals (Sweden)

    Bernhard Weninger

    2014-12-01

    Full Text Available In extension of the recently established ‘Rapid Climate Change (RCC Neolithisation Model’ (Clare 2013, in the present paper we demonstrate the existence of a remarkable coincidence between the exact (decadel-scale entry and departure dates of the Neolithic into/from the Aegean (~6600/6050 calBC with begin/end of RCC-conditions.

  13. The EuroSprite2005 Observational Campaign: an example of training and outreach opportunities for CAL young scientists

    Directory of Open Access Journals (Sweden)

    O. Chanrion

    2007-07-01

    Full Text Available The four year "Coupling of Atmospheric Layers (CAL" EU FP5 Research Training Network project studied unanswered questions related to transient luminous events (sprites, jets and elves in the upper atmosphere. Consisting of ten scientific work-packages CAL also included intensive training and outreach programmes for the young scientists hired. Educational activities were based on the following elements: national PhD programmes, activities at CAL and other meetings, a dedicated summer school, and two European sprite observational campaigns. The young scientists were strongly involved in the latter and, as an example, the "EuroSprite2005" observational campaign is presented in detail. Some of the young scientists participated in the instrument set-up, others in the campaign logistics, some coordinated the observations, and others gathered the results to build a catalogue. During the four-month duration of this campaign, all of them took turns in operating the system and making their own night observations. The ongoing campaign activities were constantly advertised and communicated via an Internet blog. In summary the campaign required all the CAL young scientists to embark on experimental work, to develop their organisational skills, and to enhance their ability to communicate their activities. The campaign was a unique opportunity to train and strengthen skills that will be an asset to their future careers and, overall, was most successful.

  14. Terraplenes sobre suelos colapsables

    OpenAIRE

    Arnedo Gaute, Diego

    2004-01-01

    Esta tesina está motivada por el diseño y construcción del Canal Segarra-Garrigues. El trazado del canal atraviesa varios pequeños valles de fondo llano mediante terraplenes sobre los cuales circula el canal. En estas vaguadas se encuentran suelos limo-arcillosos de baja densidad cuya potencia puede llegar a ser de varios metros. Estos materiales, debido a su estructura abierta, son potencialmente colapsables una vez cargados si experimentan incrementos de humedad. Las deformacion...

  15. DISCUTINDO SOBRE SEXTING

    Directory of Open Access Journals (Sweden)

    Suzana da Conceição de Barros

    2013-07-01

    Full Text Available Na contemporaneidade, os sujeitos vêm se utilizando das diversas tecnologias digitais, para exporem e compartilharem sua intimidade, com intuito de seduzirem e tornarem-se visíveis. Esse fenômeno vem sendo chamado de sexting, e vem sendo aderido por sujeitos de várias faixas etárias. Assim, leitor/a, convido você a pensar sobre o sexting e o que a escola tem a ver com essa prática?

  16. Excertos sobre o sedentarismo

    OpenAIRE

    Palma,Alexandre; Vilaça,Murilo Mariano; Assis,Monique Ribeiro de

    2014-01-01

    O sedentarismo tem sido tratado como algo perfeitamente determinável, objetivo e, portanto, que pode ser apreendido. Por outro lado, o conceito de sedentarismo ainda permanece questionável e, por conseguinte, os instrumentos mostram-se inconsistentes. Neste sentido, o objetivo do presente estudo foi mostrar que diferentes discursos de verdade vêm concorrendo por esse conceito, o que nos motiva a pensar qual é a verdade ou, até mesmo, se há alguma verdade sobre ele. Após apresentarmos diferent...

  17. A Lactose-Binding Lectin from the Marine Sponge Cinachyrella Apion (Cal) Induces Cell Death in Human Cervical Adenocarcinoma Cells

    Science.gov (United States)

    Rabelo, Luciana; Monteiro, Norberto; Serquiz, Raphael; Santos, Paula; Oliveira, Ruth; Oliveira, Adeliana; Rocha, Hugo; Morais, Ana Heloneida; Uchoa, Adriana; Santos, Elizeu

    2012-01-01

    Cancer represents a set of more than 100 diseases, including malignant tumors from different locations. Strategies inducing differentiation have had limited success in the treatment of established cancers. Marine sponges are a biological reservoir of bioactive molecules, especially lectins. Several animal and plant lectins were purified with antitumor activity, mitogenic, anti-inflammatory and antiviral, but there are few reports in the literature describing the mechanism of action of lectins purified from marine sponges to induce apoptosis in human tumor cells. In this work, a lectin purified from the marine sponge Cinachyrella apion (CaL) was evaluated with respect to its hemolytic, cytotoxic and antiproliferative properties, besides the ability to induce cell death in tumor cells. The antiproliferative activity of CaL was tested against HeLa, PC3 and 3T3 cell lines, with highest growth inhibition for HeLa, reducing cell growth at a dose dependent manner (0.5–10 µg/mL). Hemolytic activity and toxicity against peripheral blood cells were tested using the concentration of IC50 (10 µg/mL) for both trials and twice the IC50 for analysis in flow cytometry, indicating that CaL is not toxic to these cells. To assess the mechanism of cell death caused by CaL in HeLa cells, we performed flow cytometry and western blotting. Results showed that lectin probably induces cell death by apoptosis activation by pro-apoptotic protein Bax, promoting mitochondrial membrane permeabilization, cell cycle arrest in S phase and acting as both dependent and/or independent of caspases pathway. These results indicate the potential of CaL in studies of medicine for treating cancer. PMID:22690140

  18. A Lactose-Binding Lectin from the Marine Sponge Cinachyrella Apion (Cal Induces Cell Death in Human Cervical Adenocarcinoma Cells

    Directory of Open Access Journals (Sweden)

    Adriana Uchoa

    2012-03-01

    Full Text Available Cancer represents a set of more than 100 diseases, including malignant tumors from different locations. Strategies inducing differentiation have had limited success in the treatment of established cancers. Marine sponges are a biological reservoir of bioactive molecules, especially lectins. Several animal and plant lectins were purified with antitumor activity, mitogenic, anti-inflammatory and antiviral, but there are few reports in the literature describing the mechanism of action of lectins purified from marine sponges to induce apoptosis in human tumor cells. In this work, a lectin purified from the marine sponge Cinachyrella apion (CaL was evaluated with respect to its hemolytic, cytotoxic and antiproliferative properties, besides the ability to induce cell death in tumor cells. The antiproliferative activity of CaL was tested against HeLa, PC3 and 3T3 cell lines, with highest growth inhibition for HeLa, reducing cell growth at a dose dependent manner (0.5–10 µg/mL. Hemolytic activity and toxicity against peripheral blood cells were tested using the concentration of IC50 (10 µg/mL for both trials and twice the IC50 for analysis in flow cytometry, indicating that CaL is not toxic to these cells. To assess the mechanism of cell death caused by CaL in HeLa cells, we performed flow cytometry and western blotting. Results showed that lectin probably induces cell death by apoptosis activation by pro-apoptotic protein Bax, promoting mitochondrial membrane permeabilization, cell cycle arrest in S phase and acting as both dependent and/or independent of caspases pathway. These results indicate the potential of CaL in studies of medicine for treating cancer.

  19. The 3000-4000 cal. BP anthropogenic shift in fire regime in the French Pyrenees.

    Science.gov (United States)

    Rius, D.; Vannière, B.; Galop, D.; Richard, H.

    2009-04-01

    Fire is a key disturbing agent in a wide range of ecosystems: boreal biome (Pitkanen, 2000), Mediterranean area (Colombaroli et al., 2008) as well as temperate European mountain zones (Tinner et al., 1999). During the Holocene, climate may control fire regime by both ignition and fire spread-favouring conditions (i.e. composition, structure and moisture of biomass) whereas man may change charcoal accumulation patterns through type and intensity of agro-pastoral activities. In western and Mediterranean Europe, single sites charcoal analysis recorded the anthropogenic forcing over fire regime broadly between the mid and the late-Holocene. Turner et al (2008) showed that climate and fire had been disconnected since 1700 cal. BP in Turkey. In central Swiss, Mean Fire Interval decreased by two times 2000 years ago due to increasing human impact (Stahli et al., 2006). In Italy, climate and man have had a combined influence on fire-hazard since ca 4000 cal. BP (Vannière et al., 2008). In the Pyrenees Mountains, the linkage between agro-pastoral practices and fire could be dated back to ca 4000-3000 cal. BP with a clear succession of a clearance phase (high fire frequency) followed by a quite linear trend throughout Middle Ages and Modern times corresponding to a change in fire use (Vanniere et al., 2001; Galop et al., 2002, Rius et al., in press). The quantification of fire regimes parameters such as frequency with robust methodological tools (Inferred Fire Frequency, Mean Fire Interval) is needed to understand and characterise such shifts. Here we present two sequences from the Lourdes basin (col d'Ech peat bog) and from the occidental Pyrenees (Gabarn peat bog), which cover the last 9000 years with high temporal resolution. The main goals of this study were to (1) assess control factors of fire regime throughout the lateglacial and Holocene (climate and/or man) on the local scale, (2) evidence the local/regional significance of these control factors , (3) discuss the

  20. Sobre historia mundial hoy

    Directory of Open Access Journals (Sweden)

    Vera Weiler

    2001-01-01

    Full Text Available Los procesos de globalización son una realidad; su enorme impacto sobre la vida humana los ha convertido en un tema recurrente sobre el que se escribe y se comenta a diario también en Colombia. Los libros que de ellos tratan, ante todo los que 10 hacen en tono crítico, baten records en la industria editorial en todo el mundo. Las expectativas que acerca del futuro abrigan cientos de millones de personas se relacionan con 10 que ellas esperan, para bien o para mal, de la globalización. Las posturas que los gobernantes ocupan al respecto en el mundo son, cuando menos de aceptación, generalmente de activa participación en pos de la globalización. Por un lado, crece la preocupación y se multiplican las protestas; por el otro, dominan los razonamientos de los especialistas en materia de maximización de los rendimientos de los capitales que presentan la globalización, al estilo que se viene imponiendo, como el camino ineludible del gobierno universal de la eficiencia. ¿Tienen que decir algo los historiadores frente a todo esto?.

  1. y bovina con hidróxido de sodio y cal común saturada

    Directory of Open Access Journals (Sweden)

    Alejandro Chac\\u00F3n Villalobos

    2006-01-01

    Full Text Available El presente estudio fue efectuado en el módulo de procesamiento de derivados lácteos de la Estación Experimental Alfredo Volio Mata de la Universidad de Costa Rica, durante los meses de mayo y junio del 2005. Una muestra compuesta de leche de cabra (Capra hircus de un hato Lamancha y una muestra compuesta de leche de vaca de un hato Jersey (Bos taurus, formadas ambas por la mezcla de tres ordeños aleatorios diferentes, fueron pasteurizadas (65 °C/ 30 min. y almacenadas durante seis días a 6 ºC. Dos operarios especializados del módulo, analizaron por sextuplicado cada 48 horas (iniciando a las 0 horas las muestras de ambos tipos de leche por medio de una valoración convencional de la acidez con una disolución patrón de NaOH 0,1N, y de una valoración con tres disoluciones saturadas de cal preparadas cada una con marcas comerciales diferentes. Los datos se evaluaron por medio de un diseño factorial para dos niveles del factor “analista” (analista A y B, cuatro niveles del factor “tipo de valoración” y cuatro niveles del factor “tiempo de almacenamiento”. La variable respuesta evaluada fue el porcentaje de acidez expresada como ácido láctico. Para los dos tipos de leche, los métodos de valoración que emplearon disoluciones saturadas de cal mostraron ser significativamente diferentes al método basado en NaOH (p ≤ 0,05. En ambos casos, para cada nivel del “tipo de valoración” determinado, el efecto de la determinación del porcentaje de acidez expresado como ácido láctico no se ve afectado por el analista

  2. Contribuições do cep para a melhoria do desempenho do pós-vendas na indústria calçadista

    Directory of Open Access Journals (Sweden)

    Paulo Emílio Mülle

    2015-04-01

    Full Text Available Este artigo apresenta os resultados de uma pesquisa que teve por finalidade avaliar as contribuições do Controle Estaístico de Processos - CEP para melhoria do desempenho do pós-vendas na indústria calçadista do Vale do Paranhana, no Brasil. O estudo foi focado nas etapas do processo de colagem, sendo atualmente o principal problema do setor produtivo, através de um acompanhamento mensal sobre os índices de devoluções e através de registros de pós-vendas sobre tal problema. O estudo foi realizado com base em análises qualitativas, quantitativas e na aplicação do CEP. A partir de relatórios da empresa, os dados foram analisados em cartas de controle estatístico de processos por atributos, diagrama de Pareto e histograma  para melhorar a operação crítica do setor produtivo investigado. Após a aplicação da técnica, os principais resultados dessa pesquisa proporcionaram a melhoria de processo de controle da qualidade, uma vez que foi implantando um novo sistema de acompanhamento nas operações do processo e seus responsáveis, melhorando assim o desempenho dos indicadores de pós-vendas da empresa, devido à redução de defeitos de qualidade encontrados pelos clientes. This paper presents the results of a study that aimed to assess the contributions of the statistical process control - SPC to improve the post-sales performance in the footwear industry Paranhana Valley in Brazil. The study focused on the steps of the bonding process, currently being the main problem of the productive sector, through a monthly monitoring of rates of returns and through post- sales records on this issue. The study was based on qualitative, quantitative and application of SPC analysis. From company reports, data were analyzed in letters of statistical process control by attributes, Pareto diagram and histogram to improve the critical operation of the productive sector investigated. After application of the technique, the main results of this

  3. Contribuições do cep para a melhoria do desempenho do pós-vendas na indústria calçadista

    Directory of Open Access Journals (Sweden)

    Paulo Emílio Mülle

    2015-04-01

    Full Text Available Este artigo apresenta os resultados de uma pesquisa que teve por finalidade avaliar as contribuições do Controle Estaístico de Processos - CEP para melhoria do desempenho do pós-vendas na indústria calçadista do Vale do Paranhana, no Brasil. O estudo foi focado nas etapas do processo de colagem, sendo atualmente o principal problema do setor produtivo, através de um acompanhamento mensal sobre os índices de devoluções e através de registros de pós-vendas sobre tal problema. O estudo foi realizado com base em análises qualitativas, quantitativas e na aplicação do CEP. A partir de relatórios da empresa, os dados foram analisados em cartas de controle estatístico de processos por atributos, diagrama de Pareto e histograma para melhorar a operação crítica do setor produtivo investigado. Após a aplicação da técnica, os principais resultados dessa pesquisa proporcionaram a melhoria de processo de controle da qualidade, uma vez que foi implantando um novo sistema de acompanhamento nas operações do processo e seus responsáveis, melhorando assim o desempenho dos indicadores de pós-vendas da empresa, devido à redução de defeitos de qualidade encontrados pelos clientes. This paper presents the results of a study that aimed to assess the contributions of the statistical process control - SPC to improve the post-sales performance in the footwear industry Paranhana Valley in Brazil. The study focused on the steps of the bonding process, currently being the main problem of the productive sector, through a monthly monitoring of rates of returns and through post- sales records on this issue. The study was based on qualitative, quantitative and application of SPC analysis. From company reports, data were analyzed in letters of statistical process control by attributes, Pareto diagram and histogram to improve the critical operation of the productive sector investigated. After application of the technique, the main results of this

  4. Sedimentary Evidence for a Rapid Sea Level Rise at 7,600 cal yr BP from North-Central Cuba

    Science.gov (United States)

    Peros, M. C.; Agosta G'meiner, A. M.; Collins, S.

    2016-12-01

    A lack of high-resolution relative sea level (RSL) proxy data has meant that the pattern of early Holocene RSL change in the Caribbean is poorly understood. A RSL curve published by Toscano and Macintyre (2003) using inter-tidal mangrove peats and submerged corals suggests RSL underwent a relatively fast and `smooth' curvilinear increase during the Holocene. However, others, such as Blanchon and Shaw (1995), suggest that RSL increased rapidly at around 7600 cal yr BP, in response to the final stages of the melting of the Laurentide Ice Sheet (melt water pulse 1C or catastrophic rise event 3). We investigated this question using multi-proxy data from a flooded sinkhole (Cenote Jennifer) on the north coast of central Cuba. Cenote Jennifer is located 7 m above mean sea level and 2 km from the Bahamas Channel and appears to have a high degree of connectivity with the ocean through a network of underground caverns. The water depth is 13 m and the bottommost 5 m is anoxic. A sediment core collected from Cenote Jennifer was studied using loss-on-ignition, pollen analysis, high-resolution XRF core-scanning, and grain size analysis. An age-depth model was generated for the core by AMS dating. The results show that the bottommost stratigraphic unit ( 9000 to 7600 cal yr BP) is a fine-grained carbonate-rich mud (i.e., marl). This unit abruptly transitions into finely laminated organic-rich sediment from 7600 cal yr BP to the present. The pollen analysis shows that the sinkhole supported a cattail (Typha) community until 7600 cal yr BP, indicating low water levels ( 1 m). At 7600 cal yr BP, the cattail community disappeared and the vegetation of the surrounding bedrock became dominated by a thorny coastal scrubland. In addition, a 3 cm thick fining-upward siliciclastic unit is present immediately above the marl-organic contact, suggesting: 1) a marine sediment source given the limestone-dominated nature of the region, and 2) the presence of a short-duration, high

  5. Final Report Feasibility Study for the California Wave Energy Test Center (CalWavesm) - Volume #2 - Appendices #16-17

    Energy Technology Data Exchange (ETDEWEB)

    Dooher, Brendan [Pacific Gas and Electric Company, San Ramon, CA (United States). Applied Technical Services; Toman, William I. [California Polytechnic State Univ. (CalPoly), San Luis Obispo, CA (United States). Inst. of Advanced Technology and Public Policy; Davy, Doug M. [CH2M Hill Engineers, Inc., Sacramento, CA (United States); Blakslee, Samuel N. [California Polytechnic State Univ. (CalPoly), San Luis Obispo, CA (United States)

    2017-07-31

    The California Wave Energy Test Center (CalWave) Feasibility Study project was funded over multiple phases by the Department of Energy to perform an interdisciplinary feasibility assessment to analyze the engineering, permitting, and stakeholder requirements to establish an open water, fully energetic, grid connected, wave energy test center off the coast of California for the purposes of advancing U.S. wave energy research, development, and testing capabilities. Work under this grant included wave energy resource characterization, grid impact and interconnection requirements, port infrastructure and maritime industry capability/suitability to accommodate the industry at research, demonstration and commercial scale, and macro and micro siting considerations. CalWave Phase I performed a macro-siting and down-selection process focusing on two potential test sites in California: Humboldt Bay and Vandenberg Air Force Base. This work resulted in the Vandenberg Air Force Base site being chosen as the most favorable site based on a peer reviewed criteria matrix. CalWave Phase II focused on four siting location alternatives along the Vandenberg Air Force Base coastline and culminated with a final siting down-selection. Key outcomes from this work include completion of preliminary engineering and systems integration work, a robust turnkey cost estimate, shoreside and subsea hazards assessment, storm wave analysis, lessons learned reports from several maritime disciplines, test center benchmarking as compared to existing international test sites, analysis of existing applicable environmental literature, the completion of a preliminary regulatory, permitting and licensing roadmap, robust interaction and engagement with state and federal regulatory agency personnel and local stakeholders, and the population of a Draft Federal Energy Regulatory Commission (FERC) Preliminary Application Document (PAD). Analysis of existing offshore oil and gas infrastructure was also performed

  6. Voz sobre frame relay

    OpenAIRE

    D´Elia, Gabriel Anibal

    2000-01-01

    Esta tesis trata el tema de VOFR, desde la digitalización de la voz hasta su transmisión a través de dicha red, así también como la comparación con otros medios de transporte como VOIP. Dada las características del protocolo frame relay y su disponibilidad se eligió como el medio más apropiado para la transmisión de voz y datos en forma integrada sobre una misma red. El trabajo comienza con una breve explicación de la voz, su digitalización y forma actual de transmisión a través de una red di...

  7. Sentinel 2: implementation of the means and methods for the CAL/VAL commissioning phase

    Science.gov (United States)

    Trémas, Thierry L.; Déchoz, Cécile; Lacherade, Sophie; Nosavan, Julien; Petrucci, Beatrice; Martimort, P.; Isola, Claudia

    2013-10-01

    In partnership with the European Commission and in the frame of the Copernicus program, the European Space Agency (ESA) is developing the Sentinel-2 optical imaging mission devoted to the operational monitoring of land and coastal areas. The Sentinel-2 mission is based on a satellites constellation deployed in polar sun-synchronous orbit. Sentinel-2 will offer a unique combination of global coverage with a wide field of view (290km), a high revisit (5 days with two satellites), a high resolution (10m, 20m and 60m) and multi-spectral imagery (13 spectral bands in visible and shortwave infra-red domains). The first satellite is planned to be launched in late 2014. In this context, the Centre National d'Etudes Spatiales (CNES) supports ESA to insure the cal/val commissioning phase. This paper provides first, an overview of the Sentinel-2 system and the image products delivered by the ground processing. Then the paper will present the ground segment, presently under preparation at CNES, and the various devices that compose it : the GPP in charge of producing the level 1 files, the "radiometric unit" that processes sensitivity parameters, the "geometric unit" in charge of fitting the images on a reference map, MACCS that will produce Level 2A files (computing reflectances at the Bottom of Atmosphere) and the TEC-S2 that will coordinate all the previous software and drive a database in which will be gather the incoming Level 0 files and the processed Level 1 files.

  8. Upgrade Analog Readout and Digitizing System for ATLAS TileCal Demonstrator

    CERN Document Server

    Tang, F; Anderson, K; Bohm, C; Hildebrand, K; Muschter, S; Oreglia, M

    2015-01-01

    The TileCal Demonstrator is a prototype for a future upgrade to the ATLAS hadron calorimeter when the Large Hadron Collider increases luminosity in year 2023 (HL-LHC). It will be used for functionality and performance tests. The Demonstrator has 48 channels of upgraded readout and digitizing electronics and a new digital trigger capability, but is backwards-compatible with the present detector system insofar as it also provides analog trigger signals. The Demonstrator is comprised of 4 identical mechanical mini-drawers, each equipped with up to 12 photomultipliers (PMTs). The on-detector electronics includes 45 Front-End Boards, each serving an individual PMT; 4 Main Boards, each to control and digitize up to 12 PMT signals, and 4 corresponding high-speed Daughter Boards serving as data hubs between on-detector and off-detector electronics. The Demonstrator is fully compatible with the present system, accepting ATLAS triggers, timing and slow control commands for the data acquisition, detector control, and de...

  9. Analog Readout and Digitizing System for ATLAS TileCal Demonstrator

    CERN Document Server

    Tang, F; The ATLAS collaboration

    2014-01-01

    The TileCal Demonstrator is a prototype for a future upgrade to the ATLAS hadron calorimeter when the Large Hadron Collider increases luminosity in year 2023 (HL-LHC). It will be used for functionality and performance tests. The Demonstrator has 48 channels of upgraded readout and digitizing electronics and a new digital trigger capability, but is backwards-compatible with the present detector system insofar as it also provides analog trigger signals. The Demonstrator is comprised of 4 identical mechanical mini-drawers, each equipped with up to 12 photomultipliers (PMTs). The on-detector electronics includes 45 Front-End Boards, each serving an individual PMT; 4 Main Boards, each to control and digitize up to 12 PMT signals, and 4 corresponding high-speed Daughter Boards serving as data hubs between on-detector and off-detector electronics. The Demonstrator is fully compatible with the present system, accepting ATLAS triggers, timing and slow control commands for the data acquisition, detector control, and de...

  10. Reliable and redundat FPGAbased read-out design in the ATLAS TileCal Demonstrator

    CERN Document Server

    Akerstedt, H; The ATLAS collaboration

    2014-01-01

    The TileCal Demonstrator is a prototype for a future upgrade to the ATLAS hadron calorimeter when the Large Hadron Collider increases its luminosity in year 2023 (HL-LHC). It will be used for functionality and performance tests. The Demonstrator has 48 channels of upgraded readout and digitizing electronics and a new digital trigger capability, but stays backwards compatible with the present detector system by providing analog trigger signals. The Demonstrator is comprised of 4 identical “mini-drawers”, each equipped with up to 12 photomultipliers (PMTs). The on-detector electronics includes 45 Front-End Boards, each serving an individual PMT; 4 Main Boards, each to control and digitize the 12 PMT signals, and 4 corresponding high-speed Daughter Boards serving as data hubs between on-detector and off-detector electronics. The Demonstrator is fully compatible with the present system, accepting ATLAS triggers, timing and slow control commands for the data acquisition, detector control, and detector operatio...

  11. PaCAL: A Python Package for Arithmetic Computations with Random Variables

    Directory of Open Access Journals (Sweden)

    Marcin Korze?

    2014-05-01

    Full Text Available In this paper we present PaCAL, a Python package for arithmetical computations on random variables. The package is capable of performing the four arithmetic operations: addition, subtraction, multiplication and division, as well as computing many standard functions of random variables. Summary statistics, random number generation, plots, and histograms of the resulting distributions can easily be obtained and distribution parameter ?tting is also available. The operations are performed numerically and their results interpolated allowing for arbitrary arithmetic operations on random variables following practically any probability distribution encountered in practice. The package is easy to use, as operations on random variables are performed just as they are on standard Python variables. Independence of random variables is, by default, assumed on each step but some computations on dependent random variables are also possible. We demonstrate on several examples that the results are very accurate, often close to machine precision. Practical applications include statistics, physical measurements or estimation of error distributions in scienti?c computations.

  12. Construction and operation of a covered lagoon methane recovery system for the Cal Poly Dairy

    International Nuclear Information System (INIS)

    Williams, D.W.; Moser, M.A.; Norris, G.

    1999-01-01

    This paper describes the design, construction and anticipated operation of a lagoon-type methane recovery system for the Cal Poly Dairy. The initial design was based upon the present and anticipated herd size, 300 to 600 cows, heifers and calves. The lagoon design meets USDA-NRCS standards, and accounts for limitations of the site, primarily shallow sandstone bedrock. The new lagoon, which has a liquid volume of 14,000 m 3 , was constructed next to an existing lagoon. The new lagoon was covered with a flexible membrane incorporating buoyant material so that the cover floats on the surface, and a gas collection system. The predicted output of the lagoon for the present population of approximately 350 cows, heifers and calves is estimated to average up to 320 m 3 of biogas per day. The biogas will fuel a micro-turbine electric generator, and produce up to 23 kW in parallel with the utility system. Odor control is the most important non-economic benefit. This project will provide environmental benefits-odor control by capturing the odorous gases that result from dairy manure storage; methane, a significant greenhouse gas is kept out of the atmosphere; and water pollution is reduced through the reduction in organic matter in the lagoon. Economic benefits include electricity and process heat, together worth up to 16,000 US dollars per year. (author)

  13. CCN and IN Effects on Cloud Properties and Precipitation - Case Studies from CalWater 2011

    Science.gov (United States)

    Fan, J.; Leung, L.; Comstock, J. M.; Tomlinson, J. M.

    2011-12-01

    Aerosols in the atmosphere can serve as cloud condensation nuclei (CCN) and ice nuclei (IN) to modify cloud microphysical processes, which could potentially change the location, intensity, and type of precipitation. Dust aerosols are often observed over California in the Sierra Nevada Mountains in winter/spring, associated with long-range transport from Asia. Although anthropogenic pollution has been postulated to contribute to reduction of precipitation in the Sierra Nevada Mountains, the effects of dust aerosols on the winter clouds and precipitation has not been examined in detail particularly with model simulations. We incorporate recent progress in ice nucleation parameterizations to link dust with ice crystal formation in a spectral-bin cloud microphysical model coupled with WRF, to exclusively look into how dust can possibly affect cloud properties and precipitation type and intensity. Simulations are carried out for two cases under different environmental conditions with atmospheric river (AR) and Sierra barrier jet (SBJ) from the CalWater 2011 field campaign. It is shown that increasing IN concentrations or adding a dust layer at 4-6 km as IN enhances surface rain and snow due to enhanced production of ice and snow in clouds. However, increasing CCN suppresses surface rain and snow, and significantly redistributes surface precipitation upwind and downwind of the mountains, with important implication to improving our understanding of the impacts of aerosols on orographic precipitation and water supply in the region.

  14. Coatings of black carbon in Tijuana, Mexico, during the CalMex Campaign

    Science.gov (United States)

    Takahama, S.; Russell, L. M.; Duran, R.; Subramanian, R.; Kok, G.

    2010-12-01

    Black carbon number and mass concentrations were measured by a single-particle soot photometer (SP2; by Droplet Measurement Technologies) in Tijuana, Mexico between May 15, 2010, and June 30, 2010, for the CalMex campaign. The measurement site, Parque Morelos, is a recreational area located in the Southeast region of Tijuana. The SP2 was equipped with 8-channels of signal detection that spans a wider range of sensitivity for incandescing and scattering measurements than traditional configurations. The campaign-average number concentration of incandescing particles was 280 #/cc, peaking during traffic activity in the mornings. Incandescing particles made up 50% of all particles (incandescing and purely scattering) detected by the SP2. The mode of the number size distribution estimated for black carbon, according to estimated mass-equivalent diameters, was approximately 100 nm or smaller. Temporal variations in estimated coating thicknesses for these black carbon particles are discussed together with co-located measurements of organic aerosol and inorganic salts.

  15. Using Emotions in Intelligent Virtual Environments: The EJaCalIVE Framework

    Directory of Open Access Journals (Sweden)

    Jaime A. Rincon

    2017-01-01

    Full Text Available Nowadays, there is a need to provide new applications which allow the definition and implementation of safe environments that attends to the user needs and increases their wellbeing. In this sense, this paper introduces the EJaCalIVE framework which allows the creation of emotional virtual environments that incorporate agents, eHealth related devices, human actors, and emotions projecting them virtually and managing the interaction between all the elements. In this way, the proposed framework allows the design and programming of intelligent virtual environments, as well as the simulation and detection of human emotions which can be used for the improvement of the decision-making processes of the developed entities. The paper also shows a case study that enforces the need of this framework in common environments like nursing homes or assisted living facilities. Concretely, the case study proposes the simulation of a residence for the elderly. The main goal is to have an emotion-based simulation to train an assistance robot avoiding the complexity involved in working with the real elders. The main advantage of the proposed framework is to provide a safe environment, that is, an environment where users are able to interact safely with the system.

  16. On-Detector Electronics for the ATLAS TileCal Demonstrator

    CERN Document Server

    Muschter, Steffen Lothar; The ATLAS collaboration; Anderson, Kelby; Bohm, Christian; Drake, Gary; Oreglia, Mark; Paramonov, Alexander; Tang, Fukun

    2014-01-01

    In the major upgrade of the LHC and its detectors around year 2023 the beam energy and luminosity will increase significantly. For TileCal, the hadron calorimeter in ATLAS, most of the on-detector and off-detector electronics will be replaced. A new design has been proposed with some alternative solutions for some of the parts. To gain experience with this design, a demonstrator project is on-going aiming at inserting a prototype module in ATLAS this summer or in the next possible shut-down. A caveat is that it must be able to operate seamlessly with the present system. This together with test beam studies will help to finalize the design. The on-detector part of the demonstrator electronics contains five parts: new front-end boards, digitizer boards with a link daughter board, a programmable high voltage power supply and a redundant low voltage power supply. Apart from improved performance reliability is a main concern. This will be achieved by increased modularity so that the consequences of a complete fail...

  17. On-Detector Electronics for the ATLAS TileCal Demonstrator

    CERN Document Server

    Muschter, Steffen Lothar; The ATLAS collaboration; Akerstedt, Henrik; Anderson, Kelby; Bohm, Christian; Drake, Gary; Oreglia, Mark; Paramonov, Alexander; Tang, Fukun

    2016-01-01

    In the major upgrade of the LHC and its detectors around year 2023 the beam energy and luminosity will increase significantly. For TileCal, the hadron calorimeter in ATLAS, most of the on-detector and off-detector electronics will be replaced. A new design has been proposed with some alternative solutions for some of the parts. To gain experience with this design, a demonstrator project is on-going aiming at inserting a prototype module in ATLAS this summer or in the next possible shut-down. A caveat is that it must be able to operate seamlessly with the present system. This together with test beam studies will help to finalize the design. The on-detector part of the demonstrator electronics contains five parts: new front-end boards, digitizer boards with a link daughter board, a programmable high voltage power supply and a redundant low voltage power supply. Apart from improved performance reliability is a main concern. This will be achieved by increased modularity so that the consequences of a complete fail...

  18. RUGs and "Medi-Cal" systems for classifying nursing home patients.

    Science.gov (United States)

    Grimaldi, P L

    1985-12-01

    Medicare and most state Medicaid programs currently use indirect case-mix measures to determine reimbursement for nursing home care. In the future, however, they probably will incorporate more direct case-mix measures into their payment systems. Care must be exercised in designing a case-based prospective payment system to ensure that its financial incentives motivate providers to expedite recovery, prevent deterioration, and admit heavy-care patients. For example, although use of a services-rendered approach helps guarantee that care will be provided when needed, it also offers providers an incentive to furnish a service regardless of whether it is in the patient's best interest. Consideration must be given to the frequency with which patients are reassessed. The implications of the timing of reassessments for quality of care also must be studied. Ideally, quality would be measured on an outcome basis--that is, payment would depend on whether targeted goals for individual patients are reached--rather than on structural or process measures alone. Two recent classification systems--Resource Utilization Groups and Medi-Cal groups--may serve as models for case-based prospective payment systems. Each method classifies patients into distinct, meaningful categories based on activities of daily living and services received.

  19. Electron microscopy investigation of the TiBAl and TiCAl grain refiner master alloys

    International Nuclear Information System (INIS)

    Cizek, P

    2006-01-01

    The present work brings a detailed statistical analysis of the microstructural characteristics and chemistry of the second phase particles present in the Al-5Ti-1B and Al- 3Ti-0.15C (wt.%) commercial grain refiner rods used in the Al casting industry. The investigation was performed using the TEM, EDS, STEM and HREM techniques. Both refiner rods contained large, blocky Al 3 Ti DO 22 particles. Borides present in the TiBAl rod, known to be main α-Al nucleation substrates, exhibited a facetted, hexagonal platelet morphology and largely represented a mixed (Ti,Al)B 2 phase, with Ti and Al contents changing continuously across the particle dimensions. There were two distinct families of small particles observed in the TiCAl rod. The coarser, facetted particles corresponded to cubic TiC crystal structure and these are believed to be major α-Al nucleation sites. The family of finer, round particles appeared to correspond to orthorhombic Al 6 Fe phase and their role in the nucleation process remains to be clarified. The results obtained may be used in optimising the grain refiner rod microstructures that would ensure improved refining performance during casting

  20. Electron microscopy investigation of the TiBAl and TiCAl grain refiner master alloys

    Energy Technology Data Exchange (ETDEWEB)

    Cizek, P [IMMPETUS, Department of Engineering Materials, University of Sheffield, Mappin Street, Sheffield S1 3JD (United Kingdom)

    2006-02-22

    The present work brings a detailed statistical analysis of the microstructural characteristics and chemistry of the second phase particles present in the Al-5Ti-1B and Al- 3Ti-0.15C (wt.%) commercial grain refiner rods used in the Al casting industry. The investigation was performed using the TEM, EDS, STEM and HREM techniques. Both refiner rods contained large, blocky Al{sub 3}Ti DO{sub 22} particles. Borides present in the TiBAl rod, known to be main {alpha}-Al nucleation substrates, exhibited a facetted, hexagonal platelet morphology and largely represented a mixed (Ti,Al)B{sub 2} phase, with Ti and Al contents changing continuously across the particle dimensions. There were two distinct families of small particles observed in the TiCAl rod. The coarser, facetted particles corresponded to cubic TiC crystal structure and these are believed to be major {alpha}-Al nucleation sites. The family of finer, round particles appeared to correspond to orthorhombic Al{sub 6}Fe phase and their role in the nucleation process remains to be clarified. The results obtained may be used in optimising the grain refiner rod microstructures that would ensure improved refining performance during casting.

  1. Terracotas de Calés en el Museo Arqueológico Nacional de Madrid

    Directory of Open Access Journals (Sweden)

    J. M. BLÁZQUEZ

    2009-10-01

    Full Text Available El Museo Arqueológico Nacional de Madrid exhibe entre sus magníficas colecciones una compuesta de numerosas terracotas traídas de Calés en el siglo pasado por el Marqués de Salamanca que nos hemos propuesto estudiar y a la que hemos dedicado varios trabajos ya. Colecciones similares se conservan en los museos de Lecce, Capua, Louvre, Leide, British Museum, Palazzo dei Conservatori, Villa Giulia, Nacionale Romano, Ny Carbsberg Glyptothek, Museo Universitario de Zurich, Museum für antike Kleinkunst de Munich, y Vaticano, en su mayoría inéditas. Todas estas terracotas plantean sugestivos y fundamentales problemas a los estudiosos del arte antiguo, que han sido señalados por Bianchi-Bandinelli con motivo del estudio y publicación de una terracota del Museo de Berlín. Bianchi-Bandinelli ha indicado alguna de las principales características del arte itálico de este momento, cual es su gusto moderno, su impresionismo e ilusionismo. En Italia en el periodo helenístico o época a la que pertenecen todas estas terracotas, existía una gran Koiné artística que abrazaba por lo menos Lacio, Campania y Etruria. Otros investigadores han estudiado algunas de estas terracotas,como G. Kaschnitz-Weinberg, Pesce, Mingazzini, Vessberg, R. Mengarelli, etc.

  2. Improved precision radiocarbon measurements and natural 14C variations around 10.000 cal BP

    International Nuclear Information System (INIS)

    Goslar, T.

    1990-01-01

    The subject of present work, natural radiocarbon variations in the past, is one of the most significant methodological questions of radiocarbon chronology. In the first three chapters, the author discusses problems connected with calibration of conventional radiocarbon dates, and consequences of monitoring the 14 C variations for the research of the changes of geomagnetic field, solar activity and global carbon cycle. Dendrochronological dating, which, in connection with 14 C measurements enables us to reconstruct the radiocarbon variations in the past, is also widely described. Fourth chapter concerns the technical problems of detection 14 C β-activity, especially accounting for proportional counters technique. In the next chapter the author describes results of his own dendrochonological research. Sixth chapter comprises frame discussion of the system for improved precision radiocarbon dating, together with short presentation of equipment, its calibration and analysis of errors. The last chapter gives the reconstruction of the pattern of atmospheric 14 C variations in 300-year period around 10.000 cal BP. It was found that in the last 10.000 years similar pattern repeats periodically. In the end, the author discusses the meaning of negative correlation between 14 C variations and changes of annual tree-ring widths in the oak trunk from Lublinek, for searching the connection between solar activity and climate. (author)

  3. Insecticidal Properties of Peumus boldus Molina Powder Used Alone and Mixed with Lime Against Sitophilus zeamais Motschulsky (Coleopter: Curculionidae Propiedades Insecticidas del Polvo de Peumus boldus Molina Solo y en Mezcla con Cal contra Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae

    Directory of Open Access Journals (Sweden)

    Gabriel Bustos-Figueroa

    2009-09-01

    Full Text Available The insecticidal properties of boldus (Peumus boldus Molina powder used alone and mixed with lime against adults of maize weevil (Sitophilus zeamais Motschulsky were evaluated under laboratory conditions. Additionally, aeration effects (presence or absence and temperature (room temperature vs. 3 ºC on insecticidal properties were studied over time. A mortality rate of 100% was observed at 20 g kg-1 (w/w of P. boldus powder when used alone and mixed with lime in proportions of 50:50, 60:40, and 80:20. The 50% lethal concentration (LC50 for all treatments was Se evaluaron las propiedades insecticidas del polvo de boldo (Peumus boldus Molina, solo y en mezcla con cal, bajo condiciones de laboratorio. Adicionalmente, se evaluó el efecto de la aeración (presencia vs. ausencia y de la temperatura (temperatura ambiente vs. 3 ºC sobre la mortalidad y emergencia de adultos de la F1. La concentración de 20 g kg-1 (p/p del polvo de boldo ya sea solo o en combinación con cal en las proporciones de 50:50, 60:40 y 80:20 mostraron 100% de mortalidad. La concentración letal 50% (CL50, en todos los tratamientos fue menor a 5 g kg-1 (p/p mientras que la CL90 no superó 11 g kg-1 (p/p. La mezcla del polvo con los granos de maíz tanto solo como en mezcla con cal no afectó la germinación. La temperatura y la aeración no afectaron la mortalidad de los adultos parentales ni la emergencia de adultos de la F1. Cuando se mezcló el maíz con el polvo de boldo molido 24 h antes de la infestación con adultos, la mortalidad de los adultos parentales y la emergencia de adultos de la F1 fue de 100 y de 0%, respectivamente. Los resultados no fueron satisfactorios cuando el polvo de boldo almacenado durante 30, 60 y 90 d fue mezclado con el maíz infestado. La toxicidad del follaje de boldo es alta 24 h después de pulverizarse; si el tiempo es mayor, la toxicidad declina significativamente.

  4. Reprojeto do contraforte: um caso de aplicação do ecodesign em manufatura calçadista Stiffener redesign: a case of eco-design application in footwear manufacture

    Directory of Open Access Journals (Sweden)

    Miriam Borchardt

    2010-09-01

    Full Text Available O objetivo deste artigo é relatar um caso de reprojeto de um produto existente, o contraforte injetado, focando na minimização do impacto ambiental e na redução de custo do produto final, o calçado esportivo. O estudo de caso ocorreu em empresa de componentes para calçados. Foram analisadas as práticas do ecodesign inseridas no projeto de produto da empresa e o modo como foram operacionalizadas. São discutidos, também, os motivos que levaram a empresa a adotar o ecodesign e as dificuldades e barreiras encontradas. O artigo faz uma revisão sobre ecodesign, apresenta a metodologia de pesquisa e os resultados da investigação. O contraforte reprojetado trouxe, para a empresa fabricante de calçados esportivos, parceira da empresa produtora do componente em estudo, diminuição significativa do uso de adesivos e solventes, além de uma redução de 9,7% no custo-alvo do processo de aplicação do contraforte no cabedal.The purpose of this paper is to analyze the application of eco-design in the redesign of a component from the footwear industry, the stiffener. The focus is on a reduction in the environmental impact and in the final cost of sports footwear. The case study took place in a company that produces footwear components. The eco-design practices considered during the product redesign in the company and their implementation were analyzed. We also investigate and discuss the reasons why the company was led to adopt eco-design and the difficulties and barriers encountered by designers in their application. The paper reviews eco-design, describes the research methodology and presents and discusses research findings. The redesigned stiffener brought the footwear assembly company a new manufacturing business partner, and led to a significant reduction in the requirement for adhesives and solvents, and a 9.7% reduction in the target-cost of the application process.

  5. SiPM-based azimuthal position sensor in ANITA-IV Hi-Cal Antarctic balloon experiment

    Science.gov (United States)

    Novikov, A.; Besson, D.; Chernysheva, I.; Dmitrenko, V.; Grachev, V.; Petrenko, D.; Prohira, S.; Shustov, A.; Ulin, S.; Uteshev, Z.; Vlasik, K.

    2017-01-01

    Hi-Cal (High-Altitude Calibration) is a balloon-borne experiment that will be launched in December, 2016 in Antarctica following ANITA-IV (Antarctic Impulsive Transient Antenna) and will generate a broad-band pulse over the frequency range expected from radiation induced by a cosmic ray shower. Here, we describe a device based on an array of silicon photomultipliers (SiPMs) for determination of the azimuthal position of Hi-Cal. The angular resolution of the device is about 3 degrees. Since at the float altitude of ˜38 km the pressure will be ˜0.5 mbar and temperature ˜ - 20 °C, the equipment has been tested in a chamber over a range of corresponding pressures (0.5 ÷ 1000) mbar and temperatures (-40 ÷ +50) °C.

  6. SiPM-based azimuthal position sensor in ANITA-IV Hi-Cal Antarctic balloon experiment

    International Nuclear Information System (INIS)

    Novikov, A; Besson, D; Chernysheva, I; Dmitrenko, V; Grachev, V; Petrenko, D; Shustov, A; Ulin, S; Uteshev, Z; Vlasik, K; Prohira, S

    2017-01-01

    Hi-Cal (High-Altitude Calibration) is a balloon-borne experiment that will be launched in December, 2016 in Antarctica following ANITA-IV (Antarctic Impulsive Transient Antenna) and will generate a broad-band pulse over the frequency range expected from radiation induced by a cosmic ray shower. Here, we describe a device based on an array of silicon photomultipliers (SiPMs) for determination of the azimuthal position of Hi-Cal. The angular resolution of the device is about 3 degrees. Since at the float altitude of ∼38 km the pressure will be ∼0.5 mbar and temperature ∼ − 20 °C, the equipment has been tested in a chamber over a range of corresponding pressures (0.5 ÷ 1000) mbar and temperatures (−40 ÷ +50) °C. (paper)

  7. Fotosíntesis, crecimiento y aceites esenciales en morfotipos florales de caléndula (Calendula officinalis L.).

    OpenAIRE

    Salomé Abarca, Luis Francisco

    2014-01-01

    La caléndula (Calendula officinalis) es una especie herbácea originaria de Egipto, que se cree fue introducida a Europa en el siglo XII. En México es cultivada como una planta medicinal y de ornato, en lugares con clima semiseco y templado. En la zona de los valles centrales de México, Palma observó amplia diversidad fenotípica en una variedad común de caléndula, y eligió seis variantes en la morfología floral de esa población heterogénea, a las cuales denominó de la S1 a la S6. El objetivo ...

  8. Uma investigação sobre o real custo de produção de navalhas para calçados no Brasil e na Argentina

    OpenAIRE

    Hartmann, Thomas

    2010-01-01

    A pesquisa compara as estruturas de custo e o impacto no patrimônio de uma mesma empresa no Brasil e na Argentina considerando a geração de externalidades ambientais positivas e negativas. Apresenta o balanço patrimonial e o demonstrativo de resultados do exercício internalizando as externalidades ambientais sob sua responsabilidade direta, desconsiderando para esta análise a responsabilidade solidária, geralmente advinda da geração de resíduos em fretes contratados junto a pre...

  9. Estado da arte do processo produtivo da cal na região Centro Oeste de Minas Gerais

    Directory of Open Access Journals (Sweden)

    Ricardo Carrasco Carpio

    2013-11-01

    Full Text Available As indústrias de cal são caracterizadas pelas altas emissões de dióxido de carbono (CO2 na atmosfera. Isto se deve ao fato das indústrias atuarem com tecnologias ultrapassadas, resultando em alto consumo de combustível, baixa eficiências energéticas e grandes impactos ambientais. Para diminuir os danos ambientais causados pela indústria de cal é necessário o conhecimento do processo produtivo, das tecnologias empregadas e dos impactos ambientais. Por essa razão, este trabalho tem por objetivo fazer uma análise do processo produtivo da cal, desde as jazidas até o produto final, mostrando as tecnologias empregadas em cada etapa do processo.Palavras-chave: Indústrias de cal. Processo produtivo. Impacto ambiental.State-of-the-art on the manufacturing process of lime in mid west region of Minas GeraisAbstractThe lime industries are characterized by high emissions of CO2 in the atmosphere. This is because the industries are using outdated technology, resulting in high fuel consumption, low energy efficiencies and high environmental impacts. To reduce the environmental damages caused by the lime industry, it is necessary to know the manufacturing process, the technologies used and the environmental impacts. Therefore this paper aims to analyze the manufacturing process of lime, from the limestone quarries to the final product, showing the technologies used in each step of the process.Keywords: Lime Industries. Manufacturing process. Environmental impact.

  10. Fertilidad de los suelos de la explotación Cal Martí de Gàver

    OpenAIRE

    Moreno Zeymer, Martín

    2015-01-01

    The study on soil fertility of the farm Cal Martí was performed to obtain objective results on the management of soil fertility. It also was tested the hypothesis that fertility in relation to soil organic matter increases in soil covered with permanent forage crops. There were executed different type of balances (humus, nitrogen, phosphorus and potassium) of the farm and there were analysed different parameters (texture, pH, EC, organic matter, macronutrients and micronutrients) of pieces of...

  11. Dietary shift after 3600 cal yr BP and its influencing factors in northwestern China: Evidence from stable isotopes

    Science.gov (United States)

    Ma, Minmin; Dong, Guanghui; Jia, Xin; Wang, Hui; Cui, Yifu; Chen, Fahu

    2017-04-01

    :Human diets rely on natural resource availability and can reflect social and cultural values. When environments, societies, and cultures change, diets may also shift. This study traced the extent of dietary change and the factors influencing such change. Through stable carbon and nitrogen isotopic analysis of late Neolithic and early Bronze Age human and animal bone collagen, we found that significant shifts in human diets were closely associated with intercontinental cultural exchanges in Eurasia and climate change in northwestern China. The isotopic evidence indicated that human diets mainly consisted of C4 foodstuffs (presumably millet and/or animals fed with C4 foods) around 4000 calibrated years before the present (cal yr BP), corresponding to the flourishing of millet agriculture in the context of the optimal climate conditions of the mid-Holocene. Subsequently, more C3 foods (probably wheat, barley, and animals fed with C3 foods) were added to human diets post-3600 cal yr BP when the climate became cooler and drier. Such dietary variation is also consistent with the increasing intensity of long-distance exchange after 4000 cal yr BP. While many factors can lead to human dietary shifts (e.g. climate change, population growth, cultural factors, and human migration), climate may have been a key factor in Gansu and Qinghai.

  12. Calázio e características demográficas dos portadores em uma amostra populacional

    Directory of Open Access Journals (Sweden)

    Marjorie Fornazier do Nascimento

    2015-08-01

    Full Text Available RESUMO Objetivo: Apresentar a frequência de ocorrência do calázio em uma amostra populacional, assim como as características de seus portadores. Métodos: Estudo transversal utilizando amostra populacional aleatorizada, realizado nos anos 2004/2005, na região centro-oeste do estado de São Paulo. Os participantes foram avaliados segundo variáveis demográficas e exame oftalmológico. Resultados: A frequência de ocorrência do calázio foi de 1,56%, sendo mais frequente em mulheres, portadores de astigmatismo ou hipermetropia de pequenos graus, com grande variação de idade de acometimento. Foi necessária prescrição de correção óptica e cirurgia em número expressivo de casos. Conclusão: O calázio tem baixa frequência de ocorrência na população geral. Ocorre predominantemente em mulheres e há associação importante com ametropia.

  13. Dose measurements using thermoluminescent dosimeters and DoseCal software at two paediatric hospitals in Rio de Janeiro

    International Nuclear Information System (INIS)

    Mohamadain, K.E.M.; Azevedo, A.C.P.; Rosa, L.A.R. da; Guebel, M.R.N.; Boechat, M.C.B.

    2003-01-01

    A dosimetric survey in paediatric radiology is currently being carried out at the paediatric units of two large hospitals in Rio de Janeiro city: IPPMG (Instituto de Pediatria e Puericultura Martagao Gesteira, University Hospital of Federal University of Rio de Janeiro) and IFF (Instituto Fernandes Figueira, FIOCRUZ). Chest X-ray examination doses for AP, PA and LAT projections of paediatric patients have been obtained with thermoluminescent dosimeters (TLDs) and with use of a software package DoseCal. In IPPMG and IFF 100 patients have been evaluated with the use of the TLDs and another group of 100 patients with the DoseCal software. The aim of this work was to estimate the entrance skin dose (ESD) for frontal, back and lateral chest X-rays exposure of paediatric patients. For ESD evaluation, three different TL dosimeters have been used, namely LIF:Mg, Ti (TLD100), CaSO 4 :Dy and LiF:Mg, Cu, P (TLD100H). The age intervals considered were 0-1, 1-5, 5-10 and 10-15 years. The results obtained with all dosimeters are similar, and it is in good agreement with the DoseCal software, especially for AP and PA projections. However, some larger discrepancies are presented for the LAT projection

  14. PREDICATIVE VALUE OF SOME COMMON MOBILITY TESTS CRUCIAL FOR FORMING MARK IN THE PHYiCAL EDUCATION TEACHING

    Directory of Open Access Journals (Sweden)

    Danijela Bulatović

    2007-05-01

    Full Text Available Up to the sam ple of 86 stu dents from 5th class of Ele men tary School »Ok to ih« in Pod go ri ca, we ma de re se arch in or der to esta blish the le vel of sta ti sti cal im por tan ce of the com mon mo bi lity tests in fl u en ce for for ming of the physi cal edu ca tion mark. By using of Pir son cor re la ti ve analysis, fol lo wed by the re gres si ve analysis, it was esta blis hed the im por tant mu tual con nec tion bet we en pre di ca ti ve and cri te rion va ri a ble. The co ef fi ci ent of cor re la tion has been spread from the mid dle (MT600= . 488, to the high nu me ri cal va lu es (MSDM =. 735.

  15. The Cal-Bridge Program: Increasing the Gender and Ethnic Diversity of Astrophysics Students in Southern California

    Science.gov (United States)

    Smecker-Hane, Tammy A.; Rudolph, Alexander L.

    2016-06-01

    The mission of the Cal-Bridge program is to increase the number of underrepresented minority and women students completing a bachelor’s degree and entering a PhD program in astronomy, physics, or closely-related fields. The program has created a network of faculty at diverse higher education institutions, including 5 University of California (UC) campuses, 9 California State Universities (CSUs), and 10 community colleges in southern California, dedicated to this goal. Students selected for the program are know as “Cal-Bridge Scholars” and they are given a wide variety of support: (1) scholarships in their junior/senior years at CSU and their first year of graduate school at a UC, (2) intensive mentoring by a pair of CSU and UC faculty members, (3) tutoring, when needed, (4) professional development workshops, (5) exposure to research opportunities at various universities, and (6) membership in a growing cohort of like-minded students. We report on the structure of our program, lessons learned with our current 12 Cal-Bridge scholars, and the results of our first two years of operation. Funding for this program is provided by NSF-SSTEM Grant #1356133.

  16. CalMagNet – an array of search coil magnetometers monitoring ultra low frequency activity in California

    Directory of Open Access Journals (Sweden)

    C. Dunson

    2008-04-01

    Full Text Available The California Magnetometer Network (CalMagNet consists of sixty-eight triaxial search-coil magnetometer systems measuring Ultra Low Frequency (ULF, 0.001–16 Hz, magnetic field fluctuations in California. CalMagNet provides data for comprehensive multi-point measurements of specific events in the Pc 1–Pc 5 range at mid-latitudes as well as a systematic, long-term study of ULF signals in active fault regions in California. Typical events include geomagnetic micropulsations and spectral resonant structures associated with the ionospheric Alfvén resonator. This paper provides a technical overview of the CalMagNet sensors and data processing systems. The network is composed of ten reference stations and fifty-eight local monitoring stations. The primary instruments at each site are three orthogonal induction coil magnetometers. A geophone monitors local site vibration. The systems are designed for future sensor expansion and include resources for monitoring four additional channels. Data is currently sampled at 32 samples per second with a 24-bit converter and time tagged with a GPS-based timing system. Several examples of representative magnetic fluctuations and signals as measured by the array are given.

  17. Sobre la muerte voluntaria

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    Juan Álvarez-Cienfuegos Fidalgo

    2012-03-01

    Full Text Available El problema de cómo morir en nuestra sociedad se ha convertido en una inquietud para los ciudadanos y la reflexión moral. Especialmcnte por dos razones: por el desarrollo de la tecnología médica y por el hecho de que la mayor parte de los fallecimientos tienen lugar fuera del hogar, donde tradicionalmente ocurra el deceso. El presente artículo tiene como objetivo acercarse a esta cuestión. Para ello, se parte de la autonomía del ciudadano, con derecho a decidir sobre lo que considera cuál sea su manera de vivir y de morir. A tal fin, se hace una breve introducción sobre el dolor, el suicidio y la muerte, desde un punto de vista antropológico, pasando, después, a mostrar las cuestiones relacionadas con el problema de la eutanasia, donde la atención se dirigirá, ante todo, al enjuiciamiento crítico del tenso equilibrio en el que se mantienen dos principios fundamentales de la bioética: el de no maleficencia y el de autonomía del ciudadano.The problem of how to die in modern society has become a concern for both the citizen and moral reflection for two reasons in particular: due to developments in medical technology, and because most deaths occur outside the honre, where they traditionaÍlY took place. This paper addresses this issue, starting from citizen autonomy, the right to decide on what s/he considers to be his or her way of living and dying. To this end, a brief introduction considers pain, suicide and death from an anthropological viewpoint. Questions related to the problem of euthanasia are then exposed, with particular attention to, above all the critical judgement of the tense balance in which two fundamental principies of bioethics are held, the principle of non-maleficence and that of citizen autonomy.

  18. Understanding sources of organic aerosol during CalNex-2010 using the CMAQ-VBS

    Directory of Open Access Journals (Sweden)

    M. C. Woody

    2016-03-01

    Full Text Available Community Multiscale Air Quality (CMAQ model simulations utilizing the traditional organic aerosol (OA treatment (CMAQ-AE6 and a volatility basis set (VBS treatment for OA (CMAQ-VBS were evaluated against measurements collected at routine monitoring networks (Chemical Speciation Network (CSN and Interagency Monitoring of Protected Visual Environments (IMPROVE and those collected during the 2010 California at the Nexus of Air Quality and Climate Change (CalNex field campaign to examine important sources of OA in southern California. Traditionally, CMAQ treats primary organic aerosol (POA as nonvolatile and uses a two-product framework to represent secondary organic aerosol (SOA formation. CMAQ-VBS instead treats POA as semivolatile and lumps OA using volatility bins spaced an order of magnitude apart. The CMAQ-VBS approach underpredicted organic carbon (OC at IMPROVE and CSN sites to a greater degree than CMAQ-AE6 due to the semivolatile POA treatment. However, comparisons to aerosol mass spectrometer (AMS measurements collected at Pasadena, CA, indicated that CMAQ-VBS better represented the diurnal profile and primary/secondary split of OA. CMAQ-VBS SOA underpredicted the average measured AMS oxygenated organic aerosol (OOA, a surrogate for SOA concentration by a factor of 5.2, representing a considerable improvement to CMAQ-AE6 SOA predictions (factor of 24 lower than AMS. We use two new methods, one based on species ratios (SOA/ΔCO and SOA/Ox and another on a simplified SOA parameterization, to apportion the SOA underprediction for CMAQ-VBS to slow photochemical oxidation (estimated as 1.5 ×  lower than observed at Pasadena using −log(NOx : NOy, low intrinsic SOA formation efficiency (low by 1.6 to 2 ×  for Pasadena, and low emissions or excessive dispersion for the Pasadena site (estimated to be 1.6 to 2.3 ×  too low/excessive. The first and third factors are common to CMAQ-AE6, while the intrinsic SOA formation efficiency

  19. Nitrous Oxide (N2O) Emissions from California based on 2010 CalNex Airborne Measurements

    Science.gov (United States)

    Xiang, B.; Miller, S.; Kort, E. A.; Santoni, G. W.; Daube, B.; Commane, R.; Angevine, W. M.; Ryerson, T. B.; Trainer, M.; Andrews, A. E.; Nehrkorn, T.; Tian, H.; Wofsy, S. C.

    2012-12-01

    Nitrous oxide (N2O) is an important gas for climate and for stratospheric chemistry, with an atmospheric lifetime exceeding 100 years. Global concentrations have increased steadily since the 18th century, apparently due to human-associated emissions, principally from application of nitrogen fertilizers. However, quantitative studies of agricultural emissions at large spatial scales are lacking, inhibited by the difficulty of measuring small enhancements of atmospheric concentrations. Here we derive regional emission rates for N2O in the Central Valley of California, based on analysis of in-situ airborne atmospheric observations collected using a quantum cascade laser spectrometer. The data were obtained on board the NOAA P-3 research aircraft during the CalNex (California Research at the Nexus of Air Quality and Climate Change) program in May and June, 2010. We coupled WRF (Weather Research and Forecasting) model to STILT (Stochastic Time-Inverted Lagrangian Transport) to link our in-situ observations to surface emissions, and then used a variety of statistical methods to identify source areas and to extract optimized emission rates from the inversion. Our results support the view that fertilizer application is the largest source of N2O in the Central Valley. But the spatial distribution of derived surface emissions, based on California land use and activity maps, was very different than indicated in the leading emissions inventory (EDGAR 4.0), and our estimated total emission flux of N2O for California during the study period was 3 - 4 times larger than EDGAR and other inventories.

  20. The Megha-Tropiques Mission: overview of the French Science and Cal/Val plans

    Science.gov (United States)

    Roca, R.

    2009-04-01

    The Megha-Tropiques mission is an Indo-French mission built by the Centre National d'Études Spatiales et l'Indian Space Research Organisation due to launch in 2010. Megha means cloud in Sanskrit and Tropiques is the French for tropics. The major innovation of MT is to bring together a suite of complementary instruments on a dedicated orbit that strongly improves the sampling of the water cycle elements. Indeed the low inclination on the equator (20°) combined to the elevated height of the orbit (865km) provides unique observing capabilities with up to 6 over-passes per day for the best case (Figure 8). The scientific objective of the mission concerns i) Atmospheric energy budget in the inter-tropical zone and at system scale (radiation, latent heat, …) ii) Life cycle of Meso-scale Convective Complexes in the Tropics (over Oceans and Continents) and iii) Monitoring and assimilation for Cyclones, Monsoons, Meso-scale Convective Systems forecasting. These scientific objectives are achieved thanks to the following payload: SCARAB : wide band instrument for inferring longwave and shortwave outgoing fluxes at the top of the atmosphere (cross track scanning, 40 km resolution at nadir); SAPHIR: microwave sounder for water vapour sounding: 6 channels in the WV absorption band at 183.31 GHz. (cross track, 10 km) and MADRAS: microwave imager for precipitation: channels at 18, 23, 37, 89 and 157 GHz, H and V polarisations. (conical swath, <10 km to 40 km). In this presentation, a rapid overview of the anticipated Science and Cal/Val activities will be offered after a quick introduction to the Mission. The emphasis will be set on the instrumental combination and the associated scientific and technical challenges. Finally, the combination of this spacecraft and the other missions expected simultaneously, in particular in the framework of GPM, will be discussed.

  1. Environmental change in the Limfjord, Denmark (ca 7500-1500 cal yrs BP): a multiproxy study

    Science.gov (United States)

    Lewis, Jonathan P.; Ryves, David B.; Rasmussen, Peter; Knudsen, Karen L.; Petersen, Kaj S.; Olsen, Jesper; Leng, Melanie J.; Kristensen, Peter; McGowan, Suzanne; Philippsen, Bente

    2013-10-01

    The Limfjord region of northern Jutland, Denmark, supports a rich archaeological record dating back to the Mesolithic, which documents long-term change in human practices and utilisation of marine resources since approximately 7500 BP. The presence and availability of marine resources in the Limfjord is sensitively regulated by environmental parameters such as salinity, sedimentary regime, nutrient status and primary productivity, but long-term changes in these parameters are currently poorly understood. In this study a multiproxy approach (including sedimentary parameters, diatoms, molluscs, foraminifera, sedimentary pigments, C and O stable isotopes and plant macrofossils) has been adopted to assess environmental change over the period ca 7500-1500 cal yrs BP at Kilen, a coastal fjord (before AD 1856) situated in the Western Limfjord. A diatom-based salinity transfer function based on a pan-Baltic training set has been applied to the fossil diatom dataset for quantitative assessment of salinity change over the study period. This study demonstrates that large-scale shifts in salinity are a common feature of the Limfjord's long-term history and are driven by the level of connection with the North Sea and the Skagerrak respectively, which in turn is likely driven by the complex interplay between climate, sea-level change, current velocity and rates of erosion/sedimentary accretion. Three shifts in state at Kilen are identified over the study period: a deep, periodically stratified fjord with medium-high salinity (and high productivity) between ca 7500-5000 BP, followed by a gradual transition to a shallow benthic system with more oceanic conditions (i.e. higher salinity, lower productivity, slower sedimentary accumulation rate and poorer fossil preservation) after ca 5000 BP and no stratification after ca 4400 BP, and lastly, within this shallow phase, an abrupt shift to brackish conditions around 2000 BP. Environmental-societal interactions are discussed on the

  2. Volatile organic compounds in Tijuana during the Cal-Mex 2010 campaign: Measurements and source apportionment

    Science.gov (United States)

    Zheng, Jun; Garzón, Jessica P.; Huertas, María E.; Zhang, Renyi; Levy, Misti; Ma, Yan; Huertas, José I.; Jardón, Ricardo T.; Ruíz, Luis G.; Tan, Haobo; Molina, Luisa T.

    2013-05-01

    As part of the Cal-Mex 2010 air quality study, a proton transfer reaction-mass spectrometer (PTR-MS) was deployed at the San Diego-Tijuana border area to measure volatile organic compounds (VOCs) from 15 May to 30 June 2010. The major VOCs identified during the study included oxygenated VOCs (e.g., methanol, acetaldehyde, acetone, and methyl ethyl ketone) and aromatics (e.g., benzene, toluene, C8- and C9-aromatics). Biogenic VOCs (e.g., isoprene) were scarce in this region because of the lack of vegetation in this arid area. Using an U.S. EPA positive matrix factorization model, VOCs together with other trace gases (NOx, NOz and SO2) observed in this border region were attributed to four types of sources, i.e., local industrial solvent usage (58% in ppbC), gasoline vehicle exhaust (19% in ppbC), diesel vehicle exhaust (14% in ppbC), and aged plume (9% in ppbC) due to regional background and/or long-range transport. Diesel vehicle emission contributed to 87% of SO2 and 75% of NOx, and aged plume contributed to 92% of NOz. An independent conditional probability function analysis of VOCs, wind direction, and wind speed indicated that the industrial source did not show a significant tendency with wind direction. Both gasoline and diesel engine emissions were associated with air masses passing through two busy cross-border ports. Aged plumes were strongly associated with NW wind, which likely brought in aged air masses from the populated San Diego area.

  3. Organic aerosol composition and sources in Pasadena, California, during the 2010 CalNex campaign

    Science.gov (United States)

    Hayes, P. L.; Ortega, A. M.; Cubison, M. J.; Froyd, K. D.; Zhao, Y.; Cliff, S. S.; Hu, W. W.; Toohey, D. W.; Flynn, J. H.; Lefer, B. L.; Grossberg, N.; Alvarez, S.; Rappenglück, B.; Taylor, J. W.; Allan, J. D.; Holloway, J. S.; Gilman, J. B.; Kuster, W. C.; de Gouw, J. A.; Massoli, P.; Zhang, X.; Liu, J.; Weber, R. J.; Corrigan, A. L.; Russell, L. M.; Isaacman, G.; Worton, D. R.; Kreisberg, N. M.; Goldstein, A. H.; Thalman, R.; Waxman, E. M.; Volkamer, R.; Lin, Y. H.; Surratt, J. D.; Kleindienst, T. E.; Offenberg, J. H.; Dusanter, S.; Griffith, S.; Stevens, P. S.; Brioude, J.; Angevine, W. M.; Jimenez, J. L.

    2013-08-01

    Organic aerosols (OA) in Pasadena are characterized using multiple measurements from the California Research at the Nexus of Air Quality and Climate Change (CalNex) campaign. Five OA components are identified using positive matrix factorization including hydrocarbon-like OA (HOA) and two types of oxygenated OA (OOA). The Pasadena OA elemental composition when plotted as H : C versus O : C follows a line less steep than that observed for Riverside, CA. The OOA components from both locations follow a common line, however, indicating similar secondary organic aerosol (SOA) oxidation chemistry at the two sites such as fragmentation reactions leading to acid formation. In addition to the similar evolution of elemental composition, the dependence of SOA concentration on photochemical age displays quantitatively the same trends across several North American urban sites. First, the OA/ΔCO values for Pasadena increase with photochemical age exhibiting a slope identical to or slightly higher than those for Mexico City and the northeastern United States. Second, the ratios of OOA to odd-oxygen (a photochemical oxidation marker) for Pasadena, Mexico City, and Riverside are similar, suggesting a proportional relationship between SOA and odd-oxygen formation rates. Weekly cycles of the OA components are examined as well. HOA exhibits lower concentrations on Sundays versus weekdays, and the decrease in HOA matches that predicted for primary vehicle emissions using fuel sales data, traffic counts, and vehicle emission ratios. OOA does not display a weekly cycle—after accounting for differences in photochemical aging —which suggests the dominance of gasoline emissions in SOA formation under the assumption that most urban SOA precursors are from motor vehicles.

  4. Measurements of hydroxyl and hydroperoxy radicals during CalNex-LA: Model comparisons and radical budgets

    Science.gov (United States)

    Griffith, S. M.; Hansen, R. F.; Dusanter, S.; Michoud, V.; Gilman, J. B.; Kuster, W. C.; Veres, P. R.; Graus, M.; de Gouw, J. A.; Roberts, J.; Young, C.; Washenfelder, R.; Brown, S. S.; Thalman, R.; Waxman, E.; Volkamer, R.; Tsai, C.; Stutz, J.; Flynn, J. H.; Grossberg, N.; Lefer, B.; Alvarez, S. L.; Rappenglueck, B.; Mielke, L. H.; Osthoff, H. D.; Stevens, P. S.

    2016-04-01

    Measurements of hydroxyl (OH) and hydroperoxy (HO2*) radical concentrations were made at the Pasadena ground site during the CalNex-LA 2010 campaign using the laser-induced fluorescence-fluorescence assay by gas expansion technique. The measured concentrations of OH and HO2* exhibited a distinct weekend effect, with higher radical concentrations observed on the weekends corresponding to lower levels of nitrogen oxides (NOx). The radical measurements were compared to results from a zero-dimensional model using the Regional Atmospheric Chemical Mechanism-2 constrained by NOx and other measured trace gases. The chemical model overpredicted measured OH concentrations during the weekends by a factor of approximately 1.4 ± 0.3 (1σ), but the agreement was better during the weekdays (ratio of 1.0 ± 0.2). Model predicted HO2* concentrations underpredicted by a factor of 1.3 ± 0.2 on the weekends, while measured weekday concentrations were underpredicted by a factor of 3.0 ± 0.5. However, increasing the modeled OH reactivity to match the measured total OH reactivity improved the overall agreement for both OH and HO2* on all days. A radical budget analysis suggests that photolysis of carbonyls and formaldehyde together accounted for approximately 40% of radical initiation with photolysis of nitrous acid accounting for 30% at the measurement height and ozone photolysis contributing less than 20%. An analysis of the ozone production sensitivity reveals that during the week, ozone production was limited by volatile organic compounds throughout the day during the campaign but NOx limited during the afternoon on the weekends.

  5. Puente sobre el Maracaibo

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    Equipo Editorial

    2017-05-01

    Full Text Available Para salvar el lago de Maracaibo (Venezuela, el conocido ingeniero italiano Riccaido Morandi ha presentado un proyecto de puente para ferrocarril y carretera, de hormigón pretensado, de tramos independientes, constituyendo un sistema Gerber, que tiene una longitud total de 8.720 m y un vano central de 400 m de luz. Este último tramo, en unión de los dos adyacentes al mismo, constituirán, una vez terminada la obra, un conjunto continuo. El tablero del puente se halla a una altura de 45 m sobre el nivel del agua en la zona del canal, con objeto de permitir la navegación. El tablero, de 20,90 m de anchura total, se ha subdividido en tres partes, dos simétricas respecto al eje, laterales, de 7,20 m de anchura, para la circulación en sentidos opuestos por carretera, una plataforma central, de 5 m de ancho, para el ferrocarril y dos andenes para el paso de peatones y servicios.

  6. Sobre el nombre "Quechua"

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    Rodolfo Cerrón-Palomino

    1985-06-01

    Full Text Available Uno de los primeros problemas con el que a menudo tropiezael estudioso de los idiomas ágrafos, como es el caso de las lenguasaborígenes de América, es el de su denominación (glotónimo.En la medida ,en que, por razones históricas, las noticias sobretales lenguas, y por consiguiente los primeros estudios sobre lasmismas, surgen a partir del contacto con los miembros de la civilización occidental, los nombres de los distintos idiomas, así comode los grupos étnicos que los manejan, son el resultado casi siempre arbitrario cie designaciones fortuitas hechas por viajeros, misiioneros y exploradores, quienes por lo general se basan, para ello, bien en descripciones físicas de los grupo étnicos, en ciertos indios geográficos que constituyen el habitat de los mismos, e incluso en prejuicios que se nutren de un marcado europocentrismo.

  7. Bering Sea Inner Front zooplankton data sets collected with CalVet net on four cruises from 6/3/1997 - 9/1/1998 (NODC Accession 0000103)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Zooplankton and other data were collected using CalVet net in Bering sea from ALPHA HELIX. Data were collected from 01 June 1997 to 01 September 1998 by University...

  8. Estudo de argamassa à base de cal e metacaulim para intervenções em revestimento das edificações históricas

    OpenAIRE

    Souza, Juliana Santa Cruz

    2013-01-01

    O objetivo deste trabalho é caracterizar argamassas a base de cal com teores diferenciados de metacaulim para a restauração de revestimento nas edificações históricas. Confrontou-se cinco traços de argamassa à base de cal, metacaulim e mistura binária de agregado miúdo, sendo mantida a proporção de ligante e agregado em massa constante 1:3. Os traços possuem modificação na proporção de cal e metacaulim, sendo a cal substituída em massa por metacaulim nas porcentagens de 0%, ...

  9. Oceanographic profile data using bottle, collected during CalCOFI cruises, North Pacific Ocean, 2012-03 to 2013-01 (NODC Accession 0117293)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bottle data collected during CalCOFI cruises 1203, 1207, 1210, and 1301, March 2012 - January 2013. The California Cooperative Oceanic Fisheries Investigations...

  10. Oceanographic profile data using bottle collected during CalCOFI cruises, North Pacific Ocean, 2013-04 to 2014-02 (NCEI Accession 0126651)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bottle data collected during CalCOFI cruises 1304, 1307, 1311, and 1402, April 2013 - February 2014. The California Cooperative Oceanic Fisheries Investigations...

  11. Oceanographic profile data using bottle collected during CalCOFI cruises, North Pacific Ocean, 2014-03 to 2015-02 (NCEI Accession 0145016)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bottle data collected during CalCOFI cruises 1404, 1407, 1411, and 1501, March 2014 - February 2015. The California Cooperative Oceanic Fisheries Investigations...

  12. Estimulação calórica gelada com ar nas vestibulopatias periféricas crônicas com nistagmo espontâneo Ice air caloric test in chronic peripheral vestibular dysfunction with spontaneous nystagmus

    Directory of Open Access Journals (Sweden)

    Flavia Silveira dos Santos Cabral

    2008-01-01

    Full Text Available OBJETIVO: analisar o efeito da estimulação gelada com ar a 10ºC sobre o nistagmo pós-calórico em pacientes com vestibulopatias periféricas crônicas que apresentam nistagmo espontâneo com olhos fechados. MÉTODOS: 61 pacientes foram submetidos às estimulações com ar a 42, 18 e 10ºC. RESULTADOS: em 42 casos (69,8% foram encontrados valores anormais de preponderância direcional e/ou de predomínio labiríntico a 42 e 18ºC. A prova a 10ºC apresentou valores de assimetria dentro dos padrões de normalidade em 52,5% dos casos e valores anormais de assimetria em 16,4% (p=0,012, confirmou hiporreflexia unilateral em 11,5% e identificou anormalidades não evidenciadas a 42 e 18ºC em 8,2%. CONCLUSÃO: a estimulação gelada com ar a 10ºC possibilitou retirar a influência do nistagmo espontâneo de olhos fechados sobre o nistagmo pós-calórico em pacientes com vestibulopatias periféricas crônicas.PURPOSE: to analyze the effect of air caloric stimulation at 10ºC on the post-caloric responses in patients with chronic peripheral dysfunction who presented spontaneous nystagmus with the eyes closed. METHODS: 61 patients with spontaneous nystagmus with closed eyes were submitted to air caloric stimulation under the following temperatures: 42, 18 and 10ºC. RESULTS: in 42 patients (69.8%, abnormal values of directional preponderance and / or unilateral hypoexcitability were observed following the 42ºC and 18ºC stimulations. For the 10ºC stimulations an asymmetry within normal limits was seen in 52.5% of the patients, while abnormal values were seen in 16.4% (p=0.012. Unilateral hypoexcitability was confirmed in 11.5% of the cases. In 8.2% of the patients there were abnormal findings not evidenced under 42ºC and 18ºC stimulations. CONCLUSION: in patients with chronic peripheral labyrinthine disorders who show spontaneous nystagmus with closed eyes, the 10ºC caloric test makes it possible to remove the influence of the spontaneous

  13. Desarrollo de hormigones con aglomerante cal-puzolana fina como material cementicio suplementario Development of concrete mixtures with fine lime-pozzolan binder as supplementary cementitious material

    Directory of Open Access Journals (Sweden)

    Juan José Dopico

    2008-01-01

    Full Text Available La alta resistencia y durabilidad alcanzada en los hormigones de alta y ultra alta resistencia está asociada a la obtención de una matriz muy densa, definida a partir del uso de altos volúmenes de adiciones minerales muy finas, tales como las cenizas volantes, microsílice, metacaolín y polvos finos de cuarzo. El trabajo muestra un estudio sobre el uso del aglomerante cal- puzolana (ACP de alta finura, como adición mineral activa en el hormigón. Las partículas muy finas de la cal, de tamaños entre las 0.1-lOum pueden llenar los vacíos entre los granos de cemento, mientras las partículas más grandes de la puzolana, entre 10-100 [jm, pueden llenar los vacíos entre los granos más finos del agregado, resultando en una matriz más densa. La adición de hidróxido de calcio (HC durante el mezclado del hormigón, también incrementa la concentración de iones Ca+2 y OH", lo cual resulta en una mejor y mas rápida hidratación del Cemento Portland Ordinario (CPO y de la reacción puzolánica. El uso de la ACP como adición mineral activa en hormigones de alta resistencia (HAR, podría contribuir a disminuir los costos del producto sin afectar su resistencia mecánica y durabilidad usando menos cemento, con lo cual se estaría mejorando el perfil ecológico de este material. Resultados iniciales son mostrados en este trabajo, requiriéndose de ensayos adicionales para establecer los beneficios del uso de la ACP en los HAR. Un ejemplo de aplicación de este trabajo en hormigones son también presentados.The very high concrete strength and durability achieved in high and ultra-high-performance concrete is associated with a very dense matrix, accomplished through the use of high volumes of very fine mineral additions, such as fly ash, silica-fume, metakaolin and ground quartz sand. The paper reports on a study where a finely ground lime-pozzolan binder (LPB is used as active mineral addition in concrete. The very fine lime particles, having

  14. Algunos apuntes sobre comunidad

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    Clara Pérez Cárdenas

    2000-08-01

    Full Text Available Comunidad es, entre los temas de estudio del curriculum de los residentes en Medicina General Integral, uno de aquellos en las que mayores dificultades encontramos para poderlo impartir, pues la bibliografía sobre el tema está un tanto dispersa. Es un aspecto que los propios residentes no evalúan con justeza; sin embargo es de sumo interés que como profesionales de la salud no obviemos que nuestro trabajo de promoción, prevención y tratamiento, debe darse a nivel de individuo, pero también en las familias y en la comunidad como un todo, y por lo tanto debamos incorporar, al menos, nociones de lo que es una comunidad y qué es participación comunitaria para tener idea de cómo fomentarla, única vía para que nuestras acciones de salud sean más efectivasCommunity is one of the most difficult subjects to be taught among those included in the curriculum of General Comprehensive Medicine residents, since bibliography on this topic is a bit dispersed. This aspect, which is not properly evaluated by residents, is very important for health professionals to do our work of promotion, prevention and treatment not only at the level of the individual, but also at the level of the family and of the community as a whole. Therefore, we need to have some notions about community and community participation to be able to promote them, as the only way to make our health actions more effective

  15. Emission estimates of HCFCs and HFCs in California from the 2010 CalNex study

    Science.gov (United States)

    Barletta, Barbara; Carreras-Sospedra, Marc; Cohan, Alex; Nissenson, Paul; Dabdub, Donald; Meinardi, Simone; Atlas, Elliot; Lueb, Rich; Holloway, John S.; Ryerson, Thomas B.; Pederson, James; VanCuren, Richard A.; Blake, Donald R.

    2013-02-01

    The CalNex 2010 (California Research at the Nexus of Air Quality and Climate Change) study was designed to evaluate the chemical composition of air masses over key source regions in California. During May to June 2010, air samples were collected on board a National Oceanic and Atmospheric Administration (NOAA) WP-3D aircraft over the South Coast Air Basin of California (SoCAB) and the Central Valley (CV). This paper analyzes six effective greenhouse gases—chlorodifluoromethane (HCFC-22), 1,1-dichloro-1-fluoroethane (HCFC-141b), 1-chloro-1,1-difluoroethane (HCFC-142b), 2-chloro-1,1,1,2-tetrafluoroethane (HCFC-124), 1,1,1,2-tetrafluoroethane (HFC-134a), and 1,1-difluoroethane (HFC-152a)—providing the most comprehensive characterization of chlorofluorocarbon (CFC) replacement compound emissions in California. Concentrations of measured HCFCs and HFCs are enhanced greatly throughout the SoCAB and CV, with highest levels observed in the SoCAB: 310 ± 92 pptv for HCFC-22, 30.7 ± 18.6 pptv for HCFC-141b, 22.9 ± 2.0 pptv for HCFC-142b, 4.86 ± 2.56 pptv for HCFC-124, 109 ± 46.4 pptv for HFC-134a, and 91.2 ± 63.9 pptv for HFC-152a. Annual emission rates are estimated for all six compounds in the SoCAB using the measured halocarbon to carbon monoxide (CO) mixing ratios and CO emissions inventories. Emission rates of 3.05 ± 0.70 Gg for HCFC-22, 0.27 ± 0.07 Gg for HCFC-141b, 0.06 ± 0.01 Gg for HCFC-142b, 0.11 ± 0.03 Gg for HCFC-124, 1.89 ± 0.43 Gg for HFC-134a, and 1.94 ± 0.45 Gg for HFC-152b for the year 2010 are calculated for the SoCAB. These emissions are extrapolated from the SoCAB region to the state of California using population data. Results from this study provide a baseline emission rate that will help future studies determine if HCFC and HFC mitigation strategies are successful.

  16. Chemical evolution of organic aerosol in Los Angeles during the CalNex 2010 study

    Directory of Open Access Journals (Sweden)

    R. Holzinger

    2013-10-01

    Full Text Available During the CalNex study (15 May to 16 June 2010 a large suite of instruments was operated at the Los Angeles area ground supersite to characterize the sources and atmospheric processing of atmospheric pollution. The thermal-desorption proton-transfer-reaction mass-spectrometer (TD-PTR-MS was deployed to an urban area for the first time and detected 691 organic ions in aerosol samples, the mean total concentration of which was estimated as 3.3 μg m−3. Based on comparison to total organic aerosol (OA measurements, we estimate that approximately 50% of the OA mass at this site was directly measured by the TD-PTR-MS. Based on correlations with aerosol mass spectrometer (AMS OA components, the ions were grouped to represent hydrocarbon-like OA (HOA, local OA (LOA, semi-volatile oxygenated OA (SV-OOA, and low volatility oxygenated OA (LV-OOA. Mass spectra and thermograms of the ion groups are mostly consistent with the assumed sources and/or photochemical origin of the OA components. The mass spectra of ions representing the primary components HOA and LOA included the highest m/z, consistent with their higher resistance to thermal decomposition, and they were volatilized at lower temperatures (~ 150 °C. Photochemical ageing weakens C-C bond strengths (also resulting in chemical fragmentation, and produces species of lower volatility (through the addition of functional groups. Accordingly the mass spectra of ions representing the oxidized OA components (SV-OOA, and LV-OOA lack the highest masses and they are volatilized at higher temperatures (250–300 °C. Chemical parameters like mean carbon number (nC, mean carbon oxidation state (OSC, and the atomic ratios O / C and H / C of the ion groups are consistent with the expected sources and photochemical processing of the aerosol components. Our data suggest that chemical fragmentation gains importance over functionalization as photochemical age of OA increases. Surprisingly, the photochemical age of

  17. Possible cases of leprosy from the Late Copper Age (3780-3650 cal BC) in Hungary.

    Science.gov (United States)

    Köhler, Kitti; Marcsik, Antónia; Zádori, Péter; Biro, Gergely; Szeniczey, Tamás; Fábián, Szilvia; Serlegi, Gábor; Marton, Tibor; Donoghue, Helen D; Hajdu, Tamás

    2017-01-01

    At the Abony-Turjányos dűlő site, located in Central Hungary, a rescue excavation was carried out. More than 400 features were excavated and dated to the Protoboleráz horizon, at the beginning of the Late Copper Age in the Carpathian Basin, between 3780-3650 cal BC. Besides the domestic and economic units, there were two special areas, with nine-nine pits that differed from the other archaeological features of the site. In the northern pit group seven pits contained human remains belonging to 48 individuals. Some of them were buried carefully, while others were thrown into the pits. The aim of this study is to present the results of the paleopathological and molecular analysis of human remains from this Late Copper Age site. The ratio of neonates to adults was high, 33.3%. Examination of the skeletons revealed a large number of pathological cases, enabling reconstruction of the health profile of the buried individuals. Based on the appearance and frequency of healed ante- and peri mortem trauma, inter-personal (intra-group) violence was characteristic in the Abony Late Copper Age population. However other traces of paleopathology were observed on the bones that appear not to have been caused by warfare or inter-group violence. The remains of one individual demonstrated a rare set of bone lesions that indicate the possible presence of leprosy (Hansen's disease). The most characteristic lesions occurred on the bones of the face, including erosion of the nasal aperture, atrophy of the anterior nasal spine, inflammation of the nasal bone and porosity on both the maxilla and the bones of the lower legs. In a further four cases, leprosy infection is suspected but other infections cannot be excluded. The morphologically diagnosed possible leprosy case significantly modifies our knowledge about the timescale and geographic spread of this specific infectious disease. However, it is not possible to determine the potential connections between the cases of possible leprosy

  18. Informe preliminar sobre paludrina

    Directory of Open Access Journals (Sweden)

    Aquiles Peñuela Rozo

    1948-05-01

    Full Text Available En el año de 1945, Curd Davey y Rose eligieron la pirimidina como substancia de experimentación debido a que esta substancia se encuentra en las nucleo-proteinas y por su presencia en algunas sulfadrogas especial mente la sulfadiazina, de conocidas propiedades anti-palúdicas. Ensayaron la pirimidina y derivados en infestaciones por plasmodium gallinaceum en gallinas; y comprobaron que estas substancias tenían realmente acción antipalúdica. Pero al trasladar sus experiencias al hombre, encontraron que la pirimidina y sus derivados eran demasiado tóxicos. Pensando, entonces, en la similitud química del grupo de la pirimida y de la guanidina, incluyeron este último grupo en los compuestos para ensayar, descubriendo que la inclusión de la guanidina aumentaba grandemente la acción de las substancias en experiencia. Se obtuvo de esta manera un producto denominado en el numero 4-888, o paludrina, cuya fórmula o nombre químico es N. P. clorofenil N5 isopropildiguanidina, droga que se encontró muy activa contra las formas sanguíneas del Plasmodium Gallinaceum y que también se hallo activa contra las formas exoeritrocíticas del parásito. Esta capacidad de obrar sobre la fase exoeritrocítica es prácticamente exclusiva de esta substancia. Hasta hace poco tiempo esta fase exoeritrocítica, había sido demostrada solamente en trabajos de experimentación en las  aves; pero en la actualidad ha quedado también demostrada en la enfermedad humana, por experiencias del Filipino Nolasco and África, quien logro demostrar el plasmodium Vivax en el tejido retículo endotelial del pulmón de enfermos de paludismo, aunque ya Brug, en el año de 1940 había hecho comunicaciones en el mismo sentido. Se comprende la grande importancia de la paludrina, en el tratamiento del paludismo; si se considera que las recidivas de la enfermedad son debidas a la existencia de esta fase xeoeritrocítica.

  19. CalTOX, a multimedia total exposure model for hazardous-waste sites; Part 1, Executive summary

    Energy Technology Data Exchange (ETDEWEB)

    McKone, T.E.

    1993-06-01

    CalTOX has been developed as a spreadsheet model to assist in health-risk assessments that address contaminated soils and the contamination of adjacent air, surface water, sediments, and ground water. The modeling effort includes a multimedia transport and transformation model, exposure scenario models, and efforts to quantify and reduce uncertainty in multimedia, multiple-pathway exposure models. This report provides an overview of the CalTOX model components, lists the objectives of the model, describes the philosophy under which the model was developed, identifies the chemical classes for which the model can be used, and describes critical sensitivities and uncertainties. The multimedia transport and transformation model is a dynamic model that can be used to assess time-varying concentrations of contaminants introduced initially to soil layers or for contaminants released continuously to air or water. This model assists the user in examining how chemical and landscape properties impact both the ultimate route and quantity of human contact. Multimedia, multiple pathway exposure models are used in the CalTOX model to estimate average daily potential doses within a human population in the vicinity of a hazardous substances release site. The exposure models encompass twenty-three exposure pathways. The exposure assessment process consists of relating contaminant concentrations in the multimedia model compartments to contaminant concentrations in the media with which a human population has contact (personal air, tap water, foods, household dusts soils, etc.). The average daily dose is the product of the exposure concentrations in these contact media and an intake or uptake factor that relates the concentrations to the distributions of potential dose within the population.

  20. Mejoramiento del potencial agrícola de lodos digeridos anaeróbicamente con el uso de cal

    Directory of Open Access Journals (Sweden)

    Torres Patricia

    2005-12-01

    ="Subtle Emphasis" />

    Este estudio evaluó la técnica de secado térmico natural en lechos de secado para la deshidratación de lodos digeridos de una laguna anaerobia que trata aguas residuales domésticas y la influencia sobre la eficiencia de la deshidratación y remoción de patógenos y huevos de helmintos por la adición de diferentes porcentajes de cal

  1. Como evitar a formação de substâncias tóxicas durante a absorção de dióxido de carbono pela cal sodada com uso de anestésicos halogenados Como evitar la formación de substancias tóxicas durante la absorción de dióxido de carbono por la cal sodada con uso de anestésicos halogenados Preventing toxic substances production during carbon dioxide absorption by soda lime with halogenate anesthetics

    Directory of Open Access Journals (Sweden)

    Renato Ângelo Saraiva

    2004-06-01

    gua, de preferência destilada, na relação de 25 ml para cada 500 g de cal. Atualmente a indústria está bem informada sobre o problema da composição da cal, então, deve-se preferir a cal sodada que tenha somente o hidróxido de cálcio e seja totalmente desprovida de hidróxido de potássio e hidróxido de sódio.JUSTIFICATIVA Y OBJETIVOS: La cal sodada desde el inicio de su uso siempre presentó algunas complicaciones que resultaron en dificultad en su aplicabilidad. No entanto, debido a las grandes ventajas que ofrecía en relación a la reducción del flujo de gases frescos, despolución de la sala de cirugía y humidificación del sistema de inhalación y vía aérea, hicieron con que continuasen las pesquisas para que pudiese ser mejorada y corregida de forma que la continuidad de su utilización sea asegurada. Actualmente existe el problema de la deshidratación con elevación de la temperatura y de la degradación metabólica de los anestésicos halogenados que necesitan de cuidados especiales para evitar la formación de productos tóxicos. CONTENIDO: Existe una reacción en cadena a partir de la cal sodada deshidratada o resecada con bajos volúmenes porcentuales de agua. Hay aumento de la temperatura, mayor absorción de anestésico halogenado para el interior del granulo de cal y en seguida mayor degradación metabólica de las moléculas de estos agentes y consecuentemente la producción de substancias tóxicas como el Compuesto A por la reacción de los hidróxidos con el sevoflurano. Hay también formación de monóxido de carbono producido de la misma forma por la reacción entre los halogenados y las bases fuertes de la cal. El compuesto A es nefrotóxico y el monóxido de carbono lleva a la hipóxia y alteraciones graves de la coagulación de la sangre. Además de los cuidados para la hidratación de la cal sodada es posible usar ésta sin contener las bases fuertes como los hidróxidos de potasio y de sodio, conteniendo apenas hidróxido de calcio

  2. Robustness studies of the photomultipliers reading out TileCal, the central hadron calorimeter of the ATLAS experiment

    CERN Document Server

    Di Gregorio, Giulia; The ATLAS collaboration

    2018-01-01

    TileCal, the hadron calorimeter of the ATLAS experiment in LHC, is a 10000 channel detector readout by photomultipliers (PMTs). A challenging goal is to understand whether the full sample of PMTs installed at the beginning of the ATLAS detector operation can be used until completion of the High-Luminosity Large Hadron Collider (HL-LHC) program or not. For this reason, a reliable study of the PMT robustness against ageing is required. Detailed studies modelling the PMT response variation as a function of the integrated anode charge were done.

  3. Aplicação de ferramentas Lean numa PME do setor do calçado

    OpenAIRE

    Teixeira, Ricardo Jorge Leite

    2017-01-01

    Dissertação de mestrado em Engenharia Industrial (área de especialização em Gestão Industrial) A indústria do calçado, é, ainda, uma indústria com uma forte componente de trabalho manual, operações sistemáticas e uma extensa cadeia produtiva. Nesse sentido, não raras vezes, problemas associados a longos leads times, estrangulamentos no fluxo produtivo e grandes quantidades de produto em vias de fabrico estão presentes no quotidiano de muitas organizações que operam no setor. Ne...

  4. An Upgraded Front-End Switching Power Supply Design For the ATLAS TileCAL Detector of the LHC

    CERN Document Server

    Drake, Gary; The ATLAS collaboration

    2011-01-01

    We present the design of an upgraded switching power supply brick for the front-end electronics of the ATLAS hadron tile calorimeter (TileCAL) at the LHC. The new design features significant improvement in noise, improved fault detection, and generally a more robust design, while retaining the compact size, water-cooling, output control, and monitoring features in this 300 KHz design. We discuss the improvements to the design, and the radiation testing that we have done to qualify the design. We also present our plans for the production of 2400 new bricks for installation on the detector in 2013.

  5. An Upgraded Front-End Switching Power Supply Design for the ATLAS TileCAL Detector of the LHC

    CERN Document Server

    Drake, G; The ATLAS collaboration; De Lurgio, P; Henriques, A; Minashvili, I; Nemecek, S; Price, L; Proudfoot, J; Stanek, R

    2011-01-01

    We present the design of an upgraded switching power supply brick for the front-end electronics of the ATLAS hadron tile calorimeter (TileCAL) at the LHC. The new design features significant improvement in noise, improved fault detection, and generally a more robust design, while retaining the compact size, water-cooling, output control, and monitoring features in this 300 KHz design. We discuss the improvements to the design, and the radiation testing that we have done to qualify the design. We also present our plans for the production of 2400 new bricks for installation on the detector in 2013.

  6. Design of a New Switching Power Supply for the ATLAS TileCAL Front-End Electronics

    CERN Document Server

    Drake, G; The ATLAS collaboration

    2012-01-01

    We present the design of an upgraded switching power supply for the front-end electronics of the ATLAS hadron tile calorimeter (TileCAL) at the LHC. The new design features significant improvement in noise, improved fault detection, and improved reliability, while retaining the compact size, water-cooling, output control, and monitoring features in this 300 KHz design. We discuss the steps taken to improve the design. We present the results from extensive radiation testing to qualify the design, including SEU sensitivity. We also present our reliability analysis. Production of 2400 new bricks for the detector is currently in progress, and we present preliminary results from the production checkout.

  7. Ensaios sobre economia do empreendorismo

    OpenAIRE

    Gabrielito Rauter Menezes

    2015-01-01

    Esta tese é composta por três ensaios sobre Economia do Empreendedorismo. O primeiro deles trata sobre os determinantes do empreendedorismo no Brasil a partir de modelos de escolha ocupacional, usando os microdados da Pesquisa Nacional por Amostra por Domicílios (PNAD) do ano de 2012. A estratégia empírica adotada empregou os modelos de escolha discreta na estimação da escolha ocupacional. Os resultados demonstraram que existem efeitos significativos para as variáveis: anos de estudos iniciai...

  8. Evaluation of IsoCal geometric calibration system for Varian linacs equipped with on-board imager and electronic portal imaging device imaging systems.

    Science.gov (United States)

    Gao, Song; Du, Weiliang; Balter, Peter; Munro, Peter; Jeung, Andrew

    2014-05-08

    The purpose of this study is to evaluate the accuracy and reproducibility of the IsoCal geometric calibration system for kilovoltage (kV) and megavoltage (MV) imagers on Varian C-series linear accelerators (linacs). IsoCal calibration starts by imaging a phantom and collimator plate using MV images with different collimator angles, as well as MV and kV images at different gantry angles. The software then identifies objects on the collimator plate and in the phantom to determine the location of the treatment isocenter and its relation to the MV and kV imager centers. It calculates offsets between the positions of the imaging panels and the treatment isocenter as a function of gantry angle and writes a correction file that can be applied to MV and kV systems to correct for those offsets in the position of the panels. We performed IsoCal calibration three times on each of five Varian C-series linacs, each time with an independent setup. We then compared the IsoCal calibrations with a simplified Winston-Lutz (WL)-based system and with a Varian cubic phantom (VC)-based system. The maximum IsoCal corrections ranged from 0.7 mm to 1.5 mm for MV and 0.9 mm to 1.8 mm for kV imagers across the five linacs. The variations in the three calibrations for each linac were less than 0.2 mm. Without IsoCal correction, the WL results showed discrepancies between the treatment isocenter and the imager center of 0.9 mm to 1.6 mm (for the MV imager) and 0.5 mm to 1.1 mm (for the kV imager); with IsoCal corrections applied, the differences were reduced to 0.2 mm to 0.6 mm (MV) and 0.3 mm to 0.6 mm (kV) across the five linacs. The VC system was not as precise as the WL system, but showed similar results, with discrepancies of less than 1.0 mm when the IsoCal corrections were applied. We conclude that IsoCal is an accurate and consistent method for calibration and periodic quality assurance of MV and kV imaging systems.

  9. Anthocyanins from black rice (Oryza sativa L.) demonstrate antimetastatic properties by reducing MMPs and NF-κB expressions in human oral cancer CAL 27 cells.

    Science.gov (United States)

    Fan, Ming-Jen; Wang, I-Chen; Hsiao, Yung-Ting; Lin, Hui-Yi; Tang, Nou-Ying; Hung, Tzu-Chieh; Quan, Christine; Lien, Jin-Cherng; Chung, Jing-Gung

    2015-01-01

    Aside from the commonly known white rice lines, colored varieties also exist. These varieties have historically been used in Chinese medicine. Anthocyanins, a large group of natural polyphenols existing in a variety of daily fruits and vegetables, have been widely recognized as cancer chemopreventive agents. The primary objective of cancer treatment strategies has traditionally focused on preventing the occurrence of metastasis. In this research the antimetastatic mechanism of anthocyanins on the invasion/migration of human oral CAL 27 cells was performed using a transwell to quantify the migratory potential of CAL 27 cells and the results show that anthocyanins can inhibit the in vitro migration and invasion of CAL 27 cancer cells. In addition, the gelatin zymography assay indicated that anthocyanins inhibited the activity of matrix metalloproteinases-2 (MMP-2). Western blotting assay also demonstrated that anthocyanins inhibited the associated protein expression of migration/invasion of CAL 27 cell. Immunofluorescence staining proved that anthocyanins inhibited nuclear factor kappa B p65 (NF-κB p65) expressions. These results demonstrated that anthocyanins from a species of black rice (selected purple glutinous indica rice cultivated at Asia University) could suppress CAL 27 cell metastasis by reduction of MMP-2, MMP-9, and NF-κB p65 expression through the suppression of PI3K/Akt pathway and inhibition of NF-κB levels.

  10. Application of CalME incremental-recursive method to the evaluation of the structural condition as asphalt pavements

    International Nuclear Information System (INIS)

    Mateos Moreno, A.; Perez Ayuso, J.; Cadavid Jauregui, B.; Marron Fernandez, J. O.

    2011-01-01

    CalME procedure represents one of the most advanced tools for the design, of flexible pavements world-wide. IT is an incremental-recursive method, which means that pavements service life must be divided into many time intervals where both structural integrity and environmental conditions can be regarded as constants. It also means that the damage calculated at the end of each interval must be considered as initial condition for the next one. The goal of this type of models is the prediction of the evolution of the different distress mechanisms. The advantages of incremental-recursive procedures versus classical analytical design are shown in this paper. Advantages are shown not only in terms of design, but also as a tool in order to support structural evaluation. In particular, the potential of asphalt fatigue model incorporated in CalME is presented. this model is initially calibrated in the laboratory, and it is then re-calibrated based on the actual performance observed from field deflection testing. The model provides a reliable prediction of the future evolution of the damage of the asphalt mixture. Fatigue model validation has been conducted based on the performance from several flexible sections evaluated in CEDEX full-scale pavements test track. (Author) 14 refs.

  11. Woody vegetation, fuel and fire track the melting of the Scandinavian ice-sheet before 9500 cal yr BP

    Science.gov (United States)

    Carcaillet, Christopher; Hörnberg, Greger; Zackrisson, Olle

    2012-11-01

    New studies indicate the presence of early Holocene ice-free areas far north in Scandinavia. Post-glacial fire and vegetation were investigated based on sedimentary charcoal and pollen from two small lakes in northern Sweden. Accumulation of organic sediment started around 10,900 and 9200 cal yr BP, showing that both lake valleys were ice-free extremely early given their northerly location. Fire events started after 9600 cal yr BP and became less common around the '8.2-ka event'. Woody vegetation provided fuel that contributed to fires. The first vegetation in our pollen record consisted of Hippophae, Dryas, grasses and sedges. Subsequently broadleaved trees (Betula, Salix) increased in abundance and later Pinus, Alnus, ferns and Lycopodium characterized the vegetation. Pollen from Larix, Picea and Malus were also found. The change in vegetation composition was synchronous with the decrease in lake-water pH in the region, indicating ecosystem-scale processes; this occurred during a period of net global and regional warming. The changes in fire frequency and vegetation appear independent of regional trends in precipitation. The reconstructed fire history and vegetation support the scenario of early ice-free areas far north in Scandinavia during early Holocene warming, creating favorable conditions for woody plants and wildfires.

  12. The X-ray eclipse geometry of the super-soft X-ray source CAL 87

    Energy Technology Data Exchange (ETDEWEB)

    Ribeiro, T.; Lopes de Oliveira, R. [Departamento de Física, Universidade Federal de Sergipe, Av. Marechal Rondon s/n, 49100-000 São Cristóvão, SE (Brazil); Borges, B. W., E-mail: tribeiro@ufs.br, E-mail: rlopes@ufs.br, E-mail: bernardo@astro.ufsc.br [Universidade Federal de Santa Catarina, Campus Araranguá, 88905-120 Araranguá, SC (Brazil)

    2014-09-01

    We explore XMM-Newton observations of the eclipsing super-soft X-ray source CAL 87 in order to map the accretion structures of the system. Indirect imaging techniques were applied in X-ray light curves to provide eclipse maps. The surface brightness distribution exhibits an extended and symmetric emission, and a feature is revealed from the hardest X-rays that is likely due to a bright spot. A rate of P-dot =(+6±2)×10{sup −10} for changes in the orbital period of the system was derived from the eclipses. There is no significant variation of the emission lines even during eclipses, arguing that the lines are formed in an extended region. The continuum emission dominates the decrease in flux that is observed during eclipses. The O VIII Lyα line reveals a broadening velocity that is estimated to be 365{sub −69}{sup +65} km s{sup –1} (at 1σ), marginal evidence for asymmetry in its profile, and sometimes shows evidence of double-peaked emission. Together, the results support that the wind-driven mass transfer scenario is running in CAL 87.

  13. Temperature studies of the TileCal ROD G-Links for the validation of the air-cooling system

    CERN Document Server

    Valero, A; Abdallah, J; Castillo, V; Cuenca, C; Ferrer, A; Fullana, E; González, V; Higón, E; Munar, A; Poveda, J; Salvachúa, B; Sanchis, E; Solans, C; Torres, J; Valls, J A

    2007-01-01

    In this paper we show the results of the temperature studies performed on the TileCal ROD G-Links in order to validate the air-cooling system. In the first part of the note we present results on the characterization tests of the temperature monitor system for the G-Link chips of the TileCal ROD motherboard, performed at IFIC-Valencia. We report on the performance of the temperature behavior system and some cooling studies of a single ROD motherboard. We conclude that the present system can be successfully used to online monitor the temperature of the ROD G-Links. In the second part we show the results of the studies performed with multiple RODs in a standard 9U VME crate in the laboratory at IFIC, and in their final location in the ATLAS cavern. We conclude that the air-cooling provided by the standard VME crate fans is enough to keep the temperature of the G-Links well within specifications.

  14. Mass concentration, composition and sources of fine and coarse particulate matter in Tijuana, Mexico, during Cal-Mex campaign

    Science.gov (United States)

    Minguillón, María Cruz; Campos, Arturo Alberto; Cárdenas, Beatriz; Blanco, Salvador; Molina, Luisa T.; Querol, Xavier

    2014-05-01

    This work was carried out in the framework of the Cal-Mex project, which focuses on investigating the atmosphere along Mexico-California border region. Sampling was carried out at two sites located in Tijuana urban area: Parque Morelos and Metales y Derivados. PM2.5 and PM10 24 h samples were collected every three days from 17th May 2010 to 27th June 2010, and were used for gravimetric and chemical analyses (major and minor elements, inorganic ions, organic and elemental carbon) of PM. A subsequent Positive Matrix Factorization (PMF) analysis was performed. PM2.5 and PM10 average concentrations during Cal-Mex were relatively lower compared to usual annual averages. Trace elements concentrations recorded in the present study were lower than those recorded in Mexico City in 2006, with the exception of Pb at Metales y Derivados, attributed to the influence of a specific industrial source, which also includes As, Cd and Tl. Apart from this industrial source, both urban sites were found to be affected by similar sources with respect to bulk PM. Fine PM (PM2.5) was mainly apportioned by fueloil and biomass combustion and secondary aerosols, and road traffic. Coarse PM (PM2.5-10) was mainly apportioned by a mineral source (sum of road dust resuspension, construction emissions and natural soil) and fresh and aged sea salt. The road traffic was responsible for more than 60% of the fine elemental carbon and almost 40% of the fine organic matter.

  15. The safety of dipyridamole myocardial perfusion scintigraphy (MPS) in patients with end-stage chronic airways limitations (CAL)

    International Nuclear Information System (INIS)

    Roman, M.R.; Freeman, A.P.; Angelides, S.

    2000-01-01

    Full text: Dipyridamole MPS is a well-established investigative technique in the diagnosis and pre-operative risk stratification of patients with possible coronary artery disease. However, there remains a concern of its use in patients with end-stage chronic airways limitations (CAL). Lung volume reduction surgery (LVRS) is a recent therapeutic option for such patients. The options for non-invasive pre-operative cardiac assessment in such patients are limited. This study reviewed the safety of dipyridamole use in such a clinical setting. 20 patients (10M, 10F, mean age 64.8 yrs) were evaluated. None had any history of ischaemic heart disease. Dipyridamole was administered intravenously at a dose of 0.05 mg/kg. Six patients remained asymptomatic throughout the procedure, while none experienced any chest pain. Two patients experienced moderate dyspnoea, which was rapidly relieved with aminophylline (100mg IV) during the recovery phase of the study. Two others developed mild dyspnoea; one settled spontaneously, while the other responded promptly to aminophylline. Aminophylline was administered to nine other patients to reverse minor symptoms (headache, flushing sensation). One other patient developed marked hypotension (SBP fell >20mmHg) and bradycardia, but no ECG changes for myocardial ischaemia. He responded well to aminophylline. His myocardial perfusion scan demonstrated extensive reversible myocardial ischaemia. Although the population size was small, dipyridamole appears safe to use in patients with end-stage CAL. Copyright (2000) The Australian and New Zealand Society of Nuclear Medicine Inc

  16. TileCal Trigger Tower studies considering additional segmentation on the ATLAS upgrade for high luminosity at LHC

    CERN Document Server

    March, L; The ATLAS collaboration

    2013-01-01

    The Tile Calorimeter (TileCal) is the hadronic calorimeter covering the most central region of the ATLAS experiment at LHC. The TileCal readout consists of about 10000 channels and provides a compact information, called trigger towers (around 2000 signals), to the ATLAS first level online event selection system. The ATLAS upgrade program is divided in three phases: Phase 0 occurs during 2013- 2014 and prepares the LHC to reach peak luminosities of 10^34 cm2s-1; Phase 1, foreseen for 2018-1019, prepares the LHC for peak luminosity up to 2-3 x 10^34 cm2s-1, corresponding to 55 to 80 interactions per bunch-crossing with 25 ns bunch interval; and Phase 2 is foreseen for 2022-2023, whereafter the peak luminosity will reach 5-7 x 1034 cm2s-1 (HL-LHC). The ATLAS experiment is operating very well since 2009 providing large amount of data for physics analysis. The online event selection system (trigger system) was designed to reject the huge amount of background noise generated at LHC and is one of the main systems re...

  17. Conversaciones sobre el litoral cordillerano

    OpenAIRE

    Browne,Enrique; Browne,Tomás

    2009-01-01

    Dos arquitectos dialogan sobre los Andes desde su propia vivencia. El territorio de Chile se entiende como límite natural entre mar y cordillera, donde suceden apretadamente una serie de eventos particulares: fallas geológicas, cerros que penetran en las ciudades y torrentes que bajan al mar caracterizan y diferencian sus paisajes.

  18. Sobre Humanismo y Medicina

    Directory of Open Access Journals (Sweden)

    Adolfo de Francisco Zea

    2000-12-01

    Full Text Available

    En esta disertación sobre “Humanismo y Medicina”, título del libro que tuve ocasión de publicar hace un par de años, destacaré algunas de las relaciones que existen entre la medicina y las bellas artes, concretamente la música y la pintura. La Medicina tiene como objeto de su acción al Hombre. Definida como la ciencia y el arte de prevenir, curar o aliviar la enfermedad, no tiene como meta la simple prolongación de la vida biológica.

    Su tarea consiste en postergar la muerte, prevenir o reducir los padecimientos y las deformidades, curar las enfermedades, ampliar las capacidades biológicas y psicológicas de los seres humanos y ocuparse de los sufrimientos de las personas. Para Tristam Engelhardt, es la Medicina de las personas.

    Se concibe a la persona humana como el individuo de conciencia reflexiva normal que es a la vez miembro pleno de la comunidad, con los deberes y derechos que presuponen su pertenencia a ella. A esta acepción de carácter moral de la persona humana, que corresponde a lo que se llama persona “en sentido estricto”, se agrega la acepción social, que hace relación con aquellas personas a las que se otorgan prácticamente los mismos derechos, como es el caso de los niños, de los individuos que perdieron el carácter de personas por padecer de lesiones cerebrales o demencia, y de aquellos que nunca llegarán a serlo como los retrasados mentales profundos.

    Al sostener que no todos los seres humanos son personas “en sentido estricto”, la Bioética que expone Engelhardt impone, sin embargo, como obligación moral, tratar a estos últimos con pleno respeto y comprensión. Lo que es importante acerca de nosotros mismos como seres humanos, es el hecho real de que seamos personas; no simplemente nuestra pertenencia al género Horno sapiens como tal.

    Para Víctor Frankl, la persona humana es de carácter espiritual y en tal virtud, es diferente del organismo psicofísico cuya

  19. Progress toward studies of bubble-geometry Bose-Einstein condensates in microgravity with a ground-based prototype of NASA CAL

    Science.gov (United States)

    Lundblad, Nathan; Jarvis, Thomas; Paseltiner, Daniel; Lannert, Courtney

    2016-05-01

    We have proposed using NASA's Cold Atom Laboratory (CAL, launching to the International Space Station in 2017) to generate bubble-geometry Bose-Einstein condensates through radiofrequency dressing of an atom-chip magnetic trap. This geometry has not been truly realized terrestrially due to the perturbing influence of gravity, making it an ideal candidate for microgravity investigation aboard CAL. We report progress in the construction of a functional prototype of the orbital BEC apparatus: a compact atom-chip machine loaded by a 2D+MOT source, conventional 3D MOT, quadrupole trap, and transfer coil. We also present preliminary modeling of the dressed trap uniformity, which will crucially inform the geometric closure of the BEC shell surface as atom number, bubble radius, and bubble aspect ratio are varied. Finally, we discuss plans for experimental sequences to be run aboard CAL guided by intuition from ground-based prototype operation. JPL 1502172.

  20. INFLUENCIA DE LAS ESTRATEGIAS DE INGRESOS Y LAS POLITICAS PÚBLICAS SOBRE LA SEGURIDAD ALIMENTARIA EN COMUNIDADES RURALES MAYAS DEL NORTE DE CAMPECHE, MÉXICO

    OpenAIRE

    Lucio Pat Fernández; José Nahed Toral; Manuel Parra Vázquez; Luis García Barrios; Austreberta Nazar Beutelspacher; Eduardo Bello Baltazar

    2010-01-01

    En este artículo se examina el efecto de las estrategias de ingresos sobre la suficiencia de consumo calórico en grupos domésticos (GD) mayas de Campeche, México. El análisis se basó en el enfoque de modos de vida y la información se obtuvo de una encuesta censal de hogares (N=237) en cuatro comunidades. Los resultados revelan que todos los GD tienen una estrategia de ingreso diversificada con una orientación claramente definida. El índice de seguridad calórica es diferente entre co...

  1. Aplicação superficial de escória, lama cal, lodos de esgoto e calcário na cultura da soja Surface application of flue dust, aqueous lime, sewage sludge and limestone on soybean crop

    Directory of Open Access Journals (Sweden)

    Juliano Corulli Corrêa

    2008-09-01

    Full Text Available O objetivo deste trabalho foi avaliar o efeito da aplicação superficial de lodos de esgoto, lama cal, escória de aciaria e calcário sobre o estado nutricional e a produtividade da soja, em sistema plantio direto. O delineamento foi o de blocos ao acaso em arranjo fatorial 4x4+1, constituído por quatro tratamentos - resíduos de lodo de esgoto centrifugado (LC e de biodigestor (LB, escória de aciaria (E e lama cal (Lcal - nas doses 0, 2, 4 e 8 Mg ha-1, mais o controle com 2 Mg ha-1 de calcário. As plantas de soja apresentaram maior concentração de nitrogênio, fósforo e cálcio, em 2003, 2004 e 2005, e de potássio, em 2003 e 2004, em razão dos tratamentos LC, LB, E, Lcal e calagem. A produtividade da soja foi favorecida pela aplicação dos tratamentos no sistema plantio direto, em 2003, 2004 e 2005. O fósforo, e o cálcio contribuíram para o aumento da produtividade da soja em 2003 e 2004.The objective of this work was to evaluate the effect of the surface application of sewage sludge, aqueous lime, flue dust and limestone on soybean nutrition and yield in notill system. The experiment was arranged in a randomized complete block design, in factorial scheme of 4x4+1, and consisted of four residues: centrifuged sewage sludge (CSS, biodigestor sewage sludge (BSS, flue dust (FD and aqueous lime (AL, at 0, 2, 4 and 8 Mg ha-1, and one additional control treatment with dolomitic limestone at 2 Mg ha-1. The soybean plants showed greater contents of nitrogen, phosphorus and calcium in 2003, 2004 and 2005, and potassium contents in 2003 and 2004, due to the treatments CSS, BSS, FD, AL and limestone. Soybean grain yield was also enhanced due to surface applications of the treatments in notill system in 2003, 2004 and 2005. The phosphorus and calcium contributed to increase soybean yield in 2003 and 2004.

  2. Deslocamento de empresas para os estados do Ceará e da Bahia: o caso da indústria calçadista

    OpenAIRE

    Santos, Angela Maria Medeiros Martins; Correa, Abidack Raposo; Alexim, Flavia Menna Barreto; Peixoto, Gabriel Barros Tavares

    2002-01-01

    Este artigo objetiva apresentar o deslocamento do setor calçadista brasileiro das regiões Sul e Sudeste para o Nordeste, especialmente para os Estados do Ceará e da Bahia. Nesse sentido, procura-se mostrar as políticas de atração de novos investimentos do setor nesses estados, assim como suas perspectivas e seus principais problemas. Serão apresentadas as características gerais do setor no Ceará e na Bahia, os fatores que determinaram a migração de empresas calçadistas, a logística de suprime...

  3. Influência do exercício físico sobre a via da miostatina e o fenótipo muscular em ratos submetidos a alimentação intermitente

    OpenAIRE

    Oliveira, Ana Priscila Cayres de

    2016-01-01

    A alimentação intermitente (AI), alternativa à tradicional restrição calórica (RC), consiste em intervenção dietética envolvendo ciclos de jejum e alimentação. O principal efeito da RC tradicional sobre a musculatura esquelética é a redução do tamanho da fibra, a qual pode ser atenuada pelo exercício físico. Entretanto, pouco se sabe sobre a influência da AI sobre o fenótipo muscular e os mecanismos moleculares envolvidos. Neste sentido, a miostatina é um fator de crescimento que regula negat...

  4. Influência de calços na orientação postural de indivíduos com escoliose idiopática

    Directory of Open Access Journals (Sweden)

    Dalva Minonroze Albuquerque Ferreira

    Full Text Available INTRODUÇÃO: A relação entre a orientação dos segmentos e os ajustes que podem ser desencadeados por calços e palmilhas em pacientes escolióticos durante a manutenção da posição ortostática é pouco conhecida. OBJETIVO: Verificar alterações estáticas e associadas com mudanças unilaterais de calços na orientação postural de indivíduos com escoliose idiopática. MATERIAIS E MÉTODOS: Grupo experimental com dez indivíduos com escoliose idiopática com curva dupla (menor 10° e grupo controle com dez indivíduos sem escoliose (faixa etária de 13 a 24 anos. Participantes foram filmados na posição ortostática sem calço, com calço baixo (1 cm e com calço alto (3 cm; estes foram colocados sob o pé direito e pé esquerdo dos indivíduos. Em cada condição, o participante manteve a posição estática durante 15 segundos e marcadores refletivos foram colocados em pontos anatômicos específicos. Foram calculados ângulos posturais: torácico alto; torácico médio; toracolombar e lombar e ângulos segmentares: ombro; escápula; pelve e joelho. RESULTADOS: Na condição sem calço, diferenças foram observadas entre grupos para os ângulos posturais toracolombar e lombar e para o ângulo segmentar do ombro. Com calço baixo e alto, sob o pé direito, diferença foi observada entre calços para os ângulos lombar, da pelve e do joelho. Com calço baixo e alto, sob o pé esquerdo, diferença foi observada entre grupos para o ângulo toracolombar e entre calços para os ângulos da pelve e do joelho. CONCLUSÕES: A utilização de calço promove reorientação nas regiões mais baixas da coluna e nos segmentos da pelve e do joelho. Estes resultados sugerem que nas escolioses duplas, manipulação da base de apoio modifica o alinhamento do tronco que pode provocar reorganização das estruturas e busca de um novo arranjo entre segmentos em indivíduos com escoliose idiopática.

  5. Riscos ocupacionais de uma indústria calçadista sob a ótica dos trabalhadores

    Directory of Open Access Journals (Sweden)

    Fernanda Reinher da Luz

    2013-02-01

    Full Text Available O estudo teve como objetivo identificar os riscos ocupacionais de uma indústria calçadista sob a ótica dos trabalhadores, bem como as medidas preventivas adotadas por eles contra os riscos. Realizou-se um estudo qualitativo, descritivo. A amostra foi composta por quinze trabalhadores. Os dados foram coletados por entrevista semiestruturada e analisados à luz da análise de conteúdo. Foram respeitados os aspectos éticos e a pesquisa foi aprovada pelo Comitê de Ética em Pesquisa da Universidade Regional do Noroeste do Estado do Rio Grande do Sul. Os resultados apontam que os trabalhadores são conhecedores dos riscos do seu processo de trabalho, faziam uso de medidas de proteção individual e a empresa disponibilizava dispositivos de segurança, informando e realizando, periodicamente, visitas aos setores, na perspectiva de desenvolver ações educativas.

  6. CAL3JHH: a Java program to calculate the vicinal coupling constants (3J H,H) of organic molecules.

    Science.gov (United States)

    Aguirre-Valderrama, Alonso; Dobado, José A

    2008-12-01

    Here, we present a free web-accessible application, developed in the JAVA programming language for the calculation of vicinal coupling constant (3J(H,H)) of organic molecules with the H-Csp3-Csp3-H fragment. This JAVA applet is oriented to assist chemists in structural and conformational analyses, allowing the user to calculate the averaged 3J(H,H) values among conformers, according to its Boltzmann populations. Thus, the CAL3JHH program uses the Haasnoot-Leeuw-Altona equation, and, by reading the molecule geometry from a protein data bank (PDB) file format or from multiple pdb files, automatically detects all the coupled hydrogens, evaluating the data needed for this equation. Moreover, a "Graphical viewer" menu allows the display of the results on the 3D molecule structure, as well as the plotting of the Newman projection for the couplings.

  7. In silico screening of 393 mutants facilitates enzyme engineering of amidase activity in CalB

    DEFF Research Database (Denmark)

    Hediger, Martin Robert; De Vico, Luca; Rannes, Julie Bille

    2013-01-01

    Our previously presented method for high throughput computational screening of mutant activity (Hediger et al., 2012) is benchmarked against experimentally measured amidase activity for 22 mutants of Candida antarctica lipase B (CalB). Using an appropriate cutoff criterion for the computed barriers......, the qualitative activity of 15 out of 22 mutants is correctly predicted. The method identifies four of the six most active mutants with ≥3-fold wild type activity and seven out of the eight least active mutants with ≤0.5-fold wild type activity. The method is further used to screen all sterically possible (386......) double-, triple- and quadruple-mutants constructed from the most active single mutants. Based on the benchmark test at least 20 new promising mutants are identified....

  8. TRATAMENTO DE EFLUENTES ÁCIDOS RICOS EM METAIS COM AUXÍLIO DE SULFETO BIOGÊNICO E CAL

    Directory of Open Access Journals (Sweden)

    Damaris Guimarães

    2014-07-01

    Full Text Available A proposta do presente trabalho foi estudar uma forma de tratamento alternativo para efluentes líquidos ácidos ricos em metais utilizando para isso um efluente sulfetogênico gerado em um reator anaeróbio (UASB e cal. Os ensaios foram realizados em batelada utilizando dois efluentes ácidos distintos: (i um efluente proveniente de ensaios de lixiviação e (ii um efluente ácido proveniente de um laboratório de pesquisas na área de Bio&Hidrometalurgia. O efluente dos ensaios de lixiviação apresentou pH inicial de 1,7 e elevadas concentrações dos metais: Al (545,5mg/L, Ca (668,1mg/L, Cu (37,6mg/L, Fe (1148,4mg/L, Mg (1105,9mg/L e Ni (82,3mg/L, enquanto que o efluente do laboratório era composto por Cu (4,8mg/L, Fe (342,2mg/L e Ni (3,1mg/L, sendo o pH inicial de 0,14. O tratamento consistiu em adicionar o efluente sulfetogênico aos efluentes ácidos, em diferentes proporções, sendo observadas remoções consideráveis dos metais, principalmente, Fe e Ni, e uma elevação no valor de pH. Em seguida, a fim de se obter melhores resultados de remoção para os metais, os efluentes foram tratados com cal, enquadrando-se aos padrões do CONAMA para o lançamento de efluentes.

  9. The Microwave-assisted Synthesis of Polyethersulfone (PES as A Matrix in Immobilization of Candida antarctica Lipase B (Cal-B

    Directory of Open Access Journals (Sweden)

    Khusna Widhyahrini

    2017-10-01

    How to Cite: Widhyahrini, K., Handayani, N., Wahyuningrum, D., Nurbaiti, S., Radiman, C.L. (2017. The Microwave-assisted Synthesis of Polyethersulfone (PES as A Matrix in Immobilization of Candida antarctica Lipase B (Cal-B. Bulletin of Chemical Reaction Engineering & Catalysis, 12(3: 343-350 (doi:10.9767/bcrec.12.3.774.343-350

  10. Impact of climate variability on terrestrial environment in Western Europe between 45 and 9 kyr cal. BP: vegetation dynamics recorded by the Bergsee Lake (Black Forest, Germany).

    Science.gov (United States)

    Duprat-Oualid, Fanny; Begeot, Carole; Rius, Damien; Millet, Laurent; Magny, Michel

    2016-04-01

    Between 9 and 45 kyr cal. BP, two great transitions lead the global climate system to evolve from the Last-Glacial period (115-14.7 kyr cal. BP), to two successive warmer periods, the Late-Glacial Interstadial (14.7-11.7 kyr cal. BP) and the Holocene (11.7-0 kyr cal. BP). δ18O variations recorded in Greenland ice cores (GRIP & NGRIP) revealed high frequency climate variability within the Last Glacial. These reference isotopic records highlighted a succession of centennial-to-millennial warm/cold events, the so-called Greenland Interstadials (GI) and Greenland Stadials (GS). The number continental records about the period 14.7-0 kyr cal. BP is substantial. This allowed to understand the vegetation dynamics in response to climate changes this period at the North-Atlantic scale. However, sequences covering the glacial period (beyond 20 kyr cal.BP) remain rare, because of hiatuses mostly due to local glaciers. Therefore, sedimentary continuous records of vegetation dynamics are still needed to better understand climate changes during the Last Glacial in Western Europe (Heiri et al. 2014). Here we present a new high-resolution pollen record from Lake Bergsee (47°34'20''N, 7°56'11''E, 382 m a.s.l). This lake is located south of Black Forest and north of the Alps, beyond the zone of glaciers maximal extension. Therefore it could have recorded the whole last climatic cycle, i.e. 120-0 kyr cal. BP. In 2013, a 29 m long core was extracted from the Bergsee. According to the depth-age model based on 14C AMS dating and the Laacher See Tephra (LST), the record spans continuously at least the last 45 kyrs. The first series of pollen analysis, focused on the 45-9 kyr cal. BP time window, allows us to reconstruct a precise, faithful and continuous vegetation history at the centennial scale. This high temporal resolution enabled to assess the response of vegetation to secular climate events (e.g. GI-4 = 200 yrs). First, our results show that vegetation responded to climate

  11. CalWater Field Studies Designed to Quantify the Roles of Atmospheric Rivers and Aerosols in Modulating U.S. West Coast Precipitation in a Changing Climate

    Energy Technology Data Exchange (ETDEWEB)

    Ralph, F. M.; Prather, K. A.; Cayan, D.; Spackman, J. R.; DeMott, P.; Dettinger, M.; Fairall, C.; Leung, R.; Rosenfeld, D.; Rutledge, S.; Waliser, D.; White, A. B.; Cordeira, J.; Martin, A.; Helly, J.; Intrieri, J.

    2016-07-01

    The variability of precipitation and water supply along the U.S. West Coast creates major challenges to the region’s economy and environment, as evidenced by the recent California drought. This variability is strongly influenced by atmospheric rivers (AR), which deliver much of the precipitation along the U.S. West Coast and can cause flooding, and by aerosols (from local sources and transported from remote continents and oceans) that modulate clouds and precipitation. A better understanding of these processes is needed to reduce uncertainties in weather predictions and climate projections of droughts and floods, both now and under changing climate conditions.To address these gaps a group of meteorologists, hydrologists, climate scientists, atmospheric chemists, and oceanographers have created an interdisciplinary research effort, with support from multiple agencies. From 2009-2011 a series of field campaigns (CalWater 1) collected atmospheric chemistry, cloud microphysics and meteorological measurements in California and associated modeling and diagnostic studies were carried out. Based on remaining gaps, a vision was developed to extend these studies offshore over the Eastern North Pacific and to enhance land based measurements from 2014-2018 (CalWater 2). The data set and selected results from CalWater 1 are summarized here. The goals of CalWater-2, and measurements to date, are then described. CalWater is producing new findings and exploring new technologies to evaluate and improve global climate models and their regional performance and to develop tools supporting water and hydropower management. These advances also have potential to enhance hazard mitigation by improving near-term weather prediction and subseasonal and seasonal outlooks.

  12. The late Holocene dry period: multiproxy evidence for an extended drought between 2800 and 1850 cal yr BP across the central Great Basin, USA

    Science.gov (United States)

    Mensing, Scott A.; Sharpe, Saxon E.; Tunno, Irene; Sada, Don W.; Thomas, Jim M.; Starratt, Scott W.; Smith, Jeremy

    2013-01-01

    Evidence of a multi-centennial scale dry period between ∼2800 and 1850 cal yr BP is documented by pollen, mollusks, diatoms, and sediment in spring sediments from Stonehouse Meadow in Spring Valley, eastern central Nevada, U.S. We refer to this period as the Late Holocene Dry Period. Based on sediment recovered, Stonehouse Meadow was either absent or severely restricted in size at ∼8000 cal yr BP. Beginning ∼7500 cal yr BP, the meadow became established and persisted to ∼3000 cal yr BP when it began to dry. Comparison of the timing of this late Holocene drought record to multiple records extending from the eastern Sierra Nevada across the central Great Basin to the Great Salt Lake support the interpretation that this dry period was regional. The beginning and ending dates vary among sites, but all sites record multiple centuries of dry climate between 2500 and 1900 cal yr BP. This duration makes it the longest persistent dry period within the late Holocene. In contrast, sites in the northern Great Basin record either no clear evidence of drought, or have wetter than average climate during this period, suggesting that the northern boundary between wet and dry climates may have been between about 40° and 42° N latitude. This dry in the southwest and wet in the northwest precipitation pattern across the Great Basin is supported by large-scale spatial climate pattern hypotheses involving ENSO, PDO, AMO, and the position of the Aleutian Low and North Pacific High, particularly during winter.

  13. Sobre aprendizaje escolar y neurociencias

    OpenAIRE

    Terigi, Flavia

    2016-01-01

    En el marco de una creciente difusión de los discursos de y sobre las neurociencias en el campo educativo en Argentina, donde enunciados extraídos del discurso neurocientífico comienzan a transformarse en emblemas de política pública, este trabajo, escrito desde el punto de vista de la educación escolar, se propone situar los alcances y límites de los aportes de estas disciplinas para comprender el aprendizaje escolar. En él se postula que la aparición rutilante de las neurociencias en educac...

  14. Polinomios perfectos sobre F2

    OpenAIRE

    Cely Rojas, Valeria

    2010-01-01

    Este trabajo muestra el status de los números perfectos y el análogo de los números perfectos en los anillos de polinomios. Además, se presentan las demostraciones de algunas propiedades de los polinomios perfectos sobre F2 de forma comprensible, basadas en el trabajo realizado por los profesores Luis Gallardo y Oliver Rahavandrainy. / Abstract. This work shows the status artis of perfect numbers and their analogue in the rings of polynomials. Proofs of some properties of perfect polynomials ...

  15. Contabilidad del impuesto sobre beneficios

    OpenAIRE

    Luceño Martínez, Haizea

    2017-01-01

    Este Trabajo Fin de Grado pretende dar una explicación al tratamiento contable del Impuesto de Sociedades. Siendo un impuesto que hay que contabilizar, pero que se calcula siguiendo criterios fiscales, lleva a tener que realizar ajustes que tendrán su repercusión contable. El punto de partida no es otra que la norma de registro y valoración 13ª del PGC, que versa sobre cómo hay que proceder a contabilizar el Gasto por Impuesto de Sociedades, que se compone tanto del Gasto por Impuesto Co...

  16. Efficacy and Safety of Tranexamic Acid in Prehospital Traumatic Hemorrhagic Shock: Outcomes of the Cal-PAT Study

    Directory of Open Access Journals (Sweden)

    Michael M. Neeki

    2017-04-01

    Full Text Available Introduction: The California Prehospital Antifibrinolytic Therapy (Cal-PAT study seeks to assess the safety and impact on patient mortality of tranexamic acid (TXA administration in cases of trauma-induced hemorrhagic shock. The current study further aimed to assess the feasibility of prehospital TXA administration by paramedics within the framework of North American emergency medicine standards and protocols. Methods: This is an ongoing multi-centered, prospective, observational cohort study with a retrospective chart-review comparison. Trauma patients identified in the prehospital setting with signs of hemorrhagic shock by first responders were administered one gram of TXA followed by an optional second one-gram dose upon arrival to the hospital, if the patient still met inclusion criteria. Patients administered TXA make up the prehospital intervention group. Control group patients met the same inclusion criteria as TXA candidates and were matched with the prehospital intervention patients based on mechanism of injury, injury severity score, and age. The primary outcomes were mortality, measured at 24 hours, 48 hours, and 28 days. Secondary outcomes measured included the total blood products transfused and any known adverse events associated with TXA administration. Results: We included 128 patients in the prehospital intervention group and 125 in the control group. Although not statistically significant, the prehospital intervention group trended toward a lower 24-hour mortality rate (3.9% vs 7.2% for intervention and control, respectively, p=0.25, 48-hour mortality rate (6.3% vs 7.2% for intervention and control, respectively, p=0.76, and 28-day mortality rate (6.3% vs 10.4% for intervention and control, respectively, p=0.23. There was no significant difference observed in known adverse events associated with TXA administration in the prehospital intervention group and control group. A reduction in total blood product usage was observed

  17. Risk of preterm birth by subtype among Medi-Cal participants with mental illness.

    Science.gov (United States)

    Baer, Rebecca J; Chambers, Christina D; Bandoli, Gretchen; Jelliffe-Pawlowski, Laura L

    2016-10-01

    Previous studies have demonstrated an association between mental illness and preterm birth (before 37 weeks). However, these investigations have not simultaneously considered gestation of preterm birth, the indication (eg, spontaneous or medically indicated), and specific mental illness classifications. The objective of the study was to examine the likelihood of preterm birth across gestational lengths and indications among Medi-Cal (California's Medicaid program) participants with a diagnostic code for mental illness. Mental illnesses were studied by specific illness classification. The study population was drawn from singleton live births in California from 2007 through 2011 in the birth cohort file maintained by the California Office of Statewide Health Planning and Development, which includes birth certificate and hospital discharge records. The sample was restricted to women with Medi-Cal coverage for prenatal care. Women with mental illness were identified using International Classification of Diseases, ninth revision, codes from their hospital discharge record. Women without a mental illness International Classification of Diseases, ninth revision, code were randomly selected at a 4:1 ratio. Adjusting for maternal characteristics and obstetric complications, relative risks and 95% confidence intervals were calculated for preterm birth comparing women with a mental illness diagnostic code with women without such a code. We identified 6198 women with a mental illness diagnostic code and selected 24,792 women with no such code. The risk of preterm birth in women with a mental illness were 1.2 times higher than women without a mental illness (adjusted relative risk, 1.2, 95% confidence interval, 1.1-1.3). Among the specific mental illnesses, schizophrenia, major depression, and personality disorders had the strongest associations with preterm birth (adjusted relative risks, 2.0, 2.0 and 3.3, respectively). Women receiving prenatal care through California's low

  18. O estudo da prova calórica em pacientes idoso The study of caloric testing in senior patients

    Directory of Open Access Journals (Sweden)

    Débora Cristina de Oliveira Bezerra

    2008-01-01

    Full Text Available OBJETIVO: realizar o estudo da prova calórica em pacientes idosos com queixa de tontura, acompanhada ou não de zumbido com finalidade de traçar um perfil dos idosos quanto os sintomas vestibulares. MÉTODOS: fizeram parte da amostra 143 pacientes, com faixa etária variando de 60 a 90 anos de idade; todos realizaram o exame otoneurológico. Foram excluídos pacientes idosos com queixa de desequilíbrio e aqueles que apresentaram a queixa de zumbido desacompanhado da tontura. RESULTADOS: o estudo demonstrou que a normorreflexia, em valores absolutos, encontra-se entre 82,3% a 91,2% e os valores relativos são de 93%. Referente aos dados colhidos na anamnese, o que chamou a atenção, foi que do total de pacientes analisados, encontrou-se a tontura acompanhada de zumbido em 69% dos casos e o elevado uso de medicação em pacientes nesta faixa etária. CONCLUSÃO: na população estudada houve um predomínio da tontura acompanhada de zumbido. Em relação à prova calórica, o trabalho demonstrou a alta prevalência de pacientes com valores absolutos e relativos normais.PURPOSE: to accomplish the study of caloric testing in senior patients with dizziness, accompanied or not of with buzzing. METHODS: 143 patients were analyzed with age varying from 60 to 90 years; all of them did an otoneurologic evaluation. Senior patients with unbalance complaints and with buzzing unaccompanied with dizziness were excluded from this study. RESULTS: 82.3% to 91.2% of the patients obtained normoreflexia in absolute values and over 93% obtained normal results in relative values. Referring to the data obtained in the anamnesis, what got attention was 69% of dizziness accompanied with buzzing. And the high medication of the patients in this age group. CONCLUSION: there was a prevalence of dizziness accompanied with buzzing in the studied population. Concerning the caloric testing, the study demonstrated the high prevalence of patients with normal absolute and

  19. Ammonium ion interaction with conditioned natural zeolite with silver and its effect on the disinfection of polluted water in front of a consortium of gram (+) and gram (-) microorganisms; Interaccion del ion amonio con zeolita natural acondicionada con plata y su efecto sobre la desinfeccion de agua contaminada frente a un consorcio de microorganismos gram (+) y gram (-)

    Energy Technology Data Exchange (ETDEWEB)

    Gonzaga G, V. E.

    2013-07-01

    Clinoptilolite zeolite material is a relative abundance in Mexico, which has ion exchange properties, therefore, has the ability to retain metal ions giving it an application in the process of disinfecting of water contaminated with pathogenic microorganisms. In this research, we conducted a study of disinfection of water contaminated with a microbial consortium, from a zeolite rock clinoptilolite from a deposit located in the State of Guerrero. Initially, the zeolite prepared by the grinding and sieving, for conditioning with NaCl and subsequently with AgNO{sub 3}, finally to be characterized using the techniques of scanning electron microscopy and X-ray diffraction. Tests using columns packed with zeolite material, the effect of zeolite bactericidal conditioned with silver (ZGAg) against a microbial consortium consisting of Escherichia coli and Sthapyloccocus aureus in aqueous solution in the presence of ammonium ions used to increase the ion exchange with zeolite fitted with silver. To describe curves disinfecting a continuous flow system is adapted Gu pta model, which describes the kinetics and equilibrium adsorption process, considering the microorganisms as the adsorbate and the sanitizing agent (conditioned with silver zeolite) as the adsorbent. Characterization results show that in the scanning electron microscopy (Sem), no changes were obtained on the morphology of typical clinoptilolite crystals before and after that was modified with sodium and then with silver, it is worth mentioning however that fitted with silver zeolite (ZGAg), small particles are seen on the zeolite material which when analyzed by energy dispersive spectroscopy (EDS), we found a high concentration of Ag +. The disinfection period is increased as the concentration increased ammonium ions, this behavior is attributed to the ion exchange that occurs between the ammonium ions and silver ions. A lower percentage of inactivation is due, therefore, to a lesser amount of money available to be exchanged for ammonium ions, which leads to less disinfection. (Author)

  20. Real-time environmental monitoring system: drilling campaign BM-CAL-4 Block, Camanu-Almada Basin, Bahia, Brazil; Sistema de monitoramento ambiental em tempo-real: Bloco BM-CAL-4, Bacia de Camamu-Almada, Bahia, Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Martins, Pedro [El Paso Oleo e Gas, Natal, RN (Brazil); Cabral, Alexandre P. [Fugro OceansatPeg (Brazil)

    2008-07-01

    Between February and November 2007, the El Paso Oleo e Gas do Brasil Ltda. carried out a second exploratory campaign at the BM-CAL-4 Block (Camamu-Almada Basin), installing a real-time transmission metocean data monitoring system. Two metocean Wavescan (WS) buoys from Fugro were installed, transmitting current, wave and wind data to the El Paso crises room. The WS1 was positioned near the oil (10,5 km from the shore, at 22m depth), and the WS2 was located near the entrance of Barra Grande area (4,w km from the coast, at 10m depth). The real rime data fed the mathematical simulation using an oil spill model from Fugro Oceansatpeg. The metocean data Real-Time Environmental Monitoring System proved to be an important tool in the environmental management of the drilling activity located near the coastline. The sampling and real-time transmission of the current, wind and wave data allowed a better decision making regarding the selection of the best response strategies, saving time and resources in the simulation exercises, a vital issue in case of a real oil spill accident. (author)

  1. Investigação do método de desenvolvimento de calçados no pólo calçadista do Vale do Rio dos Sinos e Paranhana, no Estado do Rio Grande do Sul

    OpenAIRE

    Ronise Ferreira dos Santos

    2008-01-01

    O objetivo desta dissertação foi investigar o método de desenvolvimento de calçados utilizado por profissionais atuantes no Pólo calçadista do Vale do Rio dos Sinos e Paranhana, no Estado do Rio Grande do Sul. O grupo amostrado foi composto por 31 profissionais independentes que atuam para diversas empresas de pequeno, médio e grande porte da região e pelos 11 profissionais do grupo de desenvolvimento de produto de uma empresa de grande porte situada no Pólo. Os dados levantados com a ferrame...

  2. Can TAD and CalTAD predict cut-out after extra-medullary fixation with new generation devices of proximal femoral fractures? A retrospective study.

    Science.gov (United States)

    Caruso, Gaetano; Andreotti, Mattia; Pari, Carlotta; Soldati, Francesco; Gildone, Alessandro; Lorusso, Vincenzo; Massari, Leo

    2017-01-01

    Intramedullary and extramedullary strategies of pertrochanteric fracture fixation are still controversial, but new percutaneous devices may give advantages regarding operative time, blood loss and rate of cardiovascular complications. We retrospectively analyze our cases regarding Anteversa ® plate (Intrauma, Turin, Italy) fixation of pertrochanteric femoral fractures, focusing on the correlation between two radiographical parameters (tip-apex distance "TAD" and calcar referenced tip-apex distance "CalTAD") and the occurrence of cut-out. The purpose of this study was to determine if these predicting factors of cut-out are reliable in the treatment of proximal femoral fractures with the Anteversa plate. A series of 77 patients with 53 31-A1 fracture types and 24-A2 fractures completed a 12-month-follow-up. Clinical outcomes were evaluated according to Parker-Palmer Mobility Score at the final follow-up. TAD and CalTAD were considered to determine their correlation with cut-out events. The mean Parker-Palmer Score was 6.94 in A1 group and 7.41 in A2 group ( p  = 0.47). Mean value of TAD index was 29.58, 29.81 in the A1 group and 29.08 in the A2 group, and mean value of CalTAD index was 30.87, 31.03 in the A1 group and 30.50 in the A2 group. We observed 3 cases of implant cut-out. We shared our sample in two groups, one group with TAD and CalTAD indices lower than 25 mm and another group higher than 25 mm to evaluate how the Palmer Parker score changed and no statistical differences were found between the two groups. Taking into consideration that good clinical results were obtained for TAD and CalTAD values superior to 25 mm, the prognostic value of 25 mm of TAD and CalTAD indices might not be appropriate to this new percutaneous plate.

  3. Return to cyclical activity in ewes with energy and protein restriction during lactation period Retorno a atividade cíclica em ovelhas deslanadas submetidas à restrição calórica ou protéica durante o período de lactação

    Directory of Open Access Journals (Sweden)

    Eleonora Araújo Barbosa

    2009-06-01

    Full Text Available Inadequate ingestion of nutrients in quality and quantities is common cause of infertility in ewe and mechanisms involved between nutrition and reproduction is changeable. The aim of this work was to evaluate the energy or protein restriction during lactation in ewe on return of reproductive cyclic activity. Twenty one females in post-partum was divided randomly in 3 treatments: control treatment (CT, diet supply the requirements for maintenance and lactation, caloric restriction (CRT, supplied ½ of the diet of the CT, protein restriction (PRT, supplied 1/3 of the protein of the CT. Trans-rectal ultrasound was performed to ovary evaluation weekly and the body weight were measured biweekly. Effect of treatment on number (P<0.0001 and diameter (P<0.0001 of follicle was observed. PRT (3.32 ± 1.79; 1.45 ± 0.15 was lesser CRT (4.12 ± 1.98 ; 1.55 ± 0.09 and CT (4.94±2.01; 3.32 ± 0.22. Interaction between treatment and week in follicles lesser or equal 3 mm (P=0,0007 and greater of 3 mm (P<0,0001 added the presence of corpus luteum (P=0.0319 in the CT demonstrated effect of energy or protein restriction in the cyclic pattens of nursing sheep. On the basis of the results conclude that the nutritional restriction affects the return of the cyclical activity in the post-partum of sheep.A ingestão inadequada de nutrientes em qualidade e quantidade influencia a fertilidade das ovelhas, sendo variados os mecanismos envolvidos na inter-relação nutrição e reprodução. Objetivou-se avaliar os efeitos da restrição calórica ou protéica em ovelhas, durante a fase de lactação, sobre o desenvolvimento folicular e retorno à atividade cíclica pós-parto. Foram utilizadas 21 ovelhas SRD, recém-paridas, divididas aleatoriamente em três tratamentos: tratamento controle (TC - dieta que atendia aos requerimentos de mantença e lactação, restrição calórica (TRC - fornecia 1/2 da dieta do TC, restrição protéica (TRP - fornecia 1/3 da prote

  4. Calibration of the ATLAS hadronic barrel calorimeter TileCal using 2008, 2009 and 2010 cosmic rays data

    CERN Document Server

    The ATLAS collaboration

    2011-01-01

    Cosmic rays collected in 2008, 2009 and 2010 have been used in the ATLAS experiment to test the calibration of the hadronic barrel calorimeter TileCal. Stable results were obtained for the three periods. The analysis was based on the comparison between experimental and simulated data, and addresses three issues. First, the average non uniformity of the response of the cells within a layer was estimated to be about 2%. Second, the average response of different layers is found to be not intercalibrated, considering the sources of error. The largest difference between the responses of two layers is 4%. Finally, the differences between the energy scales of each layer obtained in this analysis and the value set at test beams using electrons was found to range between -2% and +2%. The sources of uncertainties in the response measurements are strongly correlated and include the uncertainty in the simulation of the muon response. The overall uncertainty in the energy scale is estimated to be 3%.

  5. HyperCAL3D, uma ferramenta computacional para o apoio do processo de ensino-aprendizagem de geometria descritiva

    Directory of Open Access Journals (Sweden)

    Fábio Gonçalves Teixeira

    2013-12-01

    Full Text Available Este trabalho apresenta o HyperCAL3D, um aplicativo de apoio ao ensino de Geometria Descritiva, através do estudo de objetos sólidos. São descritas a metodologia utilizada para a sua implementação e as principais funcionalidades do aplicativo. Foi realizada uma seleção de conceitos a fim de determinar a estrutura funcional que o software deveria atender. A partir disso, foram modeladas as principais funcionalidades através de processos de Geometria vetorial equivalentes aos utilizados na Geometria Descritiva. Dentre as principais funcionalidades apresentadas destacam-se: o processo de projeção, a representação de linhas ocultas no modelo tridimensional e nas projeções, vistas auxiliares sucessivas em tempo real e em 3D, representação em épura e o processo de interseção. Todas estas ferramentas são implementadas em um aplicativo que auxilia o processo de aprendizagem dos alunos e os procedimentos didáticos dos professores.

  6. Textural patterns, mineralogy, and chemistry of sandstone-related Calçadinha chalcedony (Piauí, Brazil

    Directory of Open Access Journals (Sweden)

    Marcondes Lima da Costa

    Full Text Available ABSTRACT: Paleozoic sandstones of the Parnaíba Basin, in addition to hosting opal deposits, also have occurrences of chalcedonies with potential for mineral and ornamental handicrafts, in addition to assisting the understanding of the geological evolution of the basin. However, the chalcedonies were not investigated yet, and this study intended to fulfill this gap by the investigation of the chalcedonies of Calçadinha in Piauí. Fieldwork, microtexturals analysis, X-ray diffraction and scanning electron microscopy with energy dispersive spectrometry, chemical analysis, and gemological assessments were developed. Four distinct types of chalcedonies have been distinguished. They stand out for their well distribution of Fe and Mn dendrites, which involves opal nodules, and contains microcavities with well-formed microcrystalline quartz, nontronite, and palygorskite. The mesoscopic features of these chalcedonies and cabochon and free forms cutting show potential for use in mineral crafts and semi-jewels. As expected, the chalcedonies are dominated by high contents of SiO2, besides the low and variable contents of Al2O3, Fe2O3, MgO, and TiO2. Among trace elements that show high Ba contents, bound in barite, seem also to be a geochemical signature of the country sandstones in Parnaíba basin. These chalcedonies were formed during the partial solubilization of SiO2 of sandstones, which was promoted during their tectonic formation in faults and fractures zones.

  7. Extending MAM5 Meta-Model and JaCalIV E Framework to Integrate Smart Devices from Real Environments

    Science.gov (United States)

    2016-01-01

    This paper presents the extension of a meta-model (MAM5) and a framework based on the model (JaCalIVE) for developing intelligent virtual environments. The goal of this extension is to develop augmented mirror worlds that represent a real and virtual world coupled, so that the virtual world not only reflects the real one, but also complements it. A new component called a smart resource artifact, that enables modelling and developing devices to access the real physical world, and a human in the loop agent to place a human in the system have been included in the meta-model and framework. The proposed extension of MAM5 has been tested by simulating a light control system where agents can access both virtual and real sensor/actuators through the smart resources developed. The results show that the use of real environment interactive elements (smart resource artifacts) in agent-based simulations allows to minimize the error between simulated and real system. PMID:26926691

  8. Potential climatic mechanisms associated with the mega drought at 4200 cal yr BP: linking proxy data with modern climate analogues

    Science.gov (United States)

    Carter, V.; Shinker, J. J.

    2017-12-01

    Roughly 4200 years ago, a 150-year long mega drought occurred in the central Rocky Mountains, as indicated by pollen evidence from lake sediments from Long Lake, south-eastern Wyoming. However, pollen evidence does not record the climate mechanisms that caused the drought; they only provide evidence that the drought occurred. A modern climate analogue technique using North American Regional Reanalysis data was applied to the sedimentary data in order to identify possible synoptic and dynamic patterns that may have caused the mega drought at 4200 cal yr BP. Our results suggest warm and dry conditions were a result of anomalously higher-than-normal geopotential heights that were centred over the Great Plains beginning in the spring and persisting through the fall. Drought conditions during the growing seasons was the result of the anomalous high-pressure ridge, which suppressed moisture transport via the low level jet from the Gulf of Mexico, as well as brought in dry continental air from in the interior region of North America. The conditions associated with modern analogues offer a potential climate mechanism that caused the mega drought 4200 years ago, and likely led to the changes in vegetation composition as evidenced by the pollen record from Long Lake, Wyoming.

  9. Robustness studies of the photomultipliers reading out TileCal, the central hadron calorimeter of the ATLAS experiment

    CERN Document Server

    Di Gregorio, Giulia; The ATLAS collaboration

    2018-01-01

    The ATLAS Tile Calorimeter (TileCal) is the central section of the hadronic calorimeter of the ATLAS experiment. This sampling calorimeter uses steel plates as absorber and scintillating tiles as active medium. The light produced by the passage of charged particles is transmitted by wavelength shifting fibres to photo-multiplier tubes (PMTs), located in the outer part of the calorimeter. The readout is segmented into about 5000 cells, each one being read out by two PMTs in parallel. The detector readout geometry will not be changed for the Phase II of the High Luminosity Large Hadron Collider (HL-LHC) operation. A challenging goal is to understand whether the full sample of PMTs installed at the beginning of the ATLAS detector operation can be used until completion of the HL-LHC program or not. For this reason, a reliable study of the PMT robustness against ageing is required. Detailed studies modelling the PMT response variation as a function of the integrated anode charge were done. The PMT response evoluti...

  10. Extending MAM5 Meta-Model and JaCalIV E Framework to Integrate Smart Devices from Real Environments.

    Science.gov (United States)

    Rincon, J A; Poza-Lujan, Jose-Luis; Julian, V; Posadas-Yagüe, Juan-Luis; Carrascosa, C

    2016-01-01

    This paper presents the extension of a meta-model (MAM5) and a framework based on the model (JaCalIVE) for developing intelligent virtual environments. The goal of this extension is to develop augmented mirror worlds that represent a real and virtual world coupled, so that the virtual world not only reflects the real one, but also complements it. A new component called a smart resource artifact, that enables modelling and developing devices to access the real physical world, and a human in the loop agent to place a human in the system have been included in the meta-model and framework. The proposed extension of MAM5 has been tested by simulating a light control system where agents can access both virtual and real sensor/actuators through the smart resources developed. The results show that the use of real environment interactive elements (smart resource artifacts) in agent-based simulations allows to minimize the error between simulated and real system.

  11. An IMPI-compliant control system for the ATLAS TileCal Phase II Upgrade PreProcessor module

    CERN Document Server

    Zuccarello, Pedro Diego; The ATLAS collaboration

    2016-01-01

    TileCal is the Tile hadronic calorimeter of the ATLAS experiment at the LHC. The LHC upgrade program, currently under development, will culminate in the High Luminosity LHC (HL-LHC), which is expected to increase about five times the LHC nominal instantaneous luminosity. The readout electronics of the Tile calorimenter being redesigned introducing a new read-out strategy in order to accommodate the detector to the new HL-LHC parameters. The data generated inside the detector at every bunch crossing will be transmitted to the PreProcessor (PPR) boards before any event selection is applied. The PPRs will be located at off-detector sites. The PPR will be responsible of providing preprocessed trigger information to the ATLAS first level of trigger (L1). In overall it will represent the interface between the data acquisition, trigger and control systems and the on-detector electronics. The PPR, being an important part of the readout system, needs to be remotely accessed and monitored to prevent failures or, in cas...

  12. Multistep food plant processing at Grotta Paglicci (Southern Italy) around 32,600 cal B.P.

    Science.gov (United States)

    Mariotti Lippi, Marta; Foggi, Bruno; Aranguren, Biancamaria; Ronchitelli, Annamaria; Revedin, Anna

    2015-09-29

    Residue analyses on a grinding tool recovered at Grotta Paglicci sublayer 23A [32,614 ± 429 calibrated (cal) B.P.], Southern Italy, have demonstrated that early modern humans collected and processed various plants. The recording of starch grains attributable to Avena (oat) caryopses expands our information about the food plants used for producing flour in Europe during the Paleolithic and about the origins of a food tradition persisting up to the present in the Mediterranean basin. The quantitative distribution of the starch grains on the surface of the grinding stone furnished information about the tool handling, confirming its use as a pestle-grinder, as suggested by the wear-trace analysis. The particular state of preservation of the starch grains suggests the use of a thermal treatment before grinding, possibly to accelerate drying of the plants, making the following process easier and faster. The study clearly indicates that the exploitation of plant resources was very important for hunter-gatherer populations, to the point that the Early Gravettian inhabitants of Paglicci were able to process food plants and already possessed a wealth of knowledge that was to become widespread after the dawn of agriculture.

  13. Calibration of the ATLAS hadronic barrel calorimeter TileCal using 2008, 2009 and 2010 cosmic-ray muon data

    CERN Document Server

    Weng, Z

    2012-01-01

    The ATLAS iron-scintillator hadronic calorimeter (TileCal) provides precision measurements of jets and missing transverse energy produced in the LHC proton-proton collisions. Results assessing the calorimeter calibration obtained using cosmic ray muons collected in 2008, 2009 and 2010 are presented. The analysis was based on the comparison between experimental and simulated data, and addresses three issues. First the average non-uniformity of the response of the cells within a layer was estimated to be about ±2% . Second, the average response of different layers is found to be not inter-calibrated, considering the sources of error. The largest difference between the responses of two layers is ±4% . Finally, the differences between the energy scales of each layer obtained in this analysis and the value set at test beams using electrons was found to range between -3% and +1%. The sources of uncertainties in the response measurements are strongly correlated, including the uncertainty in the simulation. The tot...

  14. Multi-wavelength properties of two supersoft X-ray sources CAL83 and RXJ0513.9-6951

    Science.gov (United States)

    Rajoelimanana, A.; Meintjes, P.; Charles, P.

    2017-10-01

    Supersoft X-ray sources (SSS) are highly luminous (˜10^{38} erg s^{-1}), yet low temperature 10^{6} K sources, interpreted as a white dwarf (WD) accreting matter at a very high rate from its (heavy) companion, leading to Eddington-limited, steady hydrogen burning on the WD surface at T˜15-80 eV. A large fraction of this energy irradiates the surface of the disc, which gives rise to a reprocessed flux much larger than the intrinsic disc luminosity, accounting for the large optical and UV fluxes detected in SSS. We present the multi-wavelength properties of two prototypical LMC SSS, CAL83 and RXJ0513.9-6951, with particular emphasis on the anti-correlation between their X-ray and optical behaviour. Our SALT spectra show variable high excitation OVI emission as a function of optical brightness state, and which we link to the cyclic changes in the temperature and size of the WD, and hence the mass accretion rate.

  15. Recursos y enlaces sobre comunidades de aprendizaje

    OpenAIRE

    Ferrer Esteban, Gerard

    2005-01-01

    Obras y artículos sobre el proyecto Comunidades de Aprendizaje desarrollado en el Estado español. Tesis doctorales sobre comunidades de aprendizaje. Fundamentación teórica de las comunidades de aprendizaje. Sitios en Internet relacionados con las comunidades de aprendizaje y proyectos afines de desarrollo comunitario en contextos escolares.

  16. Efecto cristal. Reflexiones sobre arquitectura

    Directory of Open Access Journals (Sweden)

    Dr. Arq. Carlos Pantaleón Panaro

    2017-12-01

    Full Text Available ESPEJISMO es una ilusión óptica debido a la reflexión total de la luz cuando atraviesa capas de aire de densidad distinta, con lo cual los objetos lejanos dan una imagen invertida, como si se reflejaran sobre el agua, tal como ocurre en las llanuras de los desiertos. 1 La definición de espejismo nos explica que es una ilusión, una ficción, un desvarío, un delirio. Algo que no es real ni verdadero, la apariencia engañosa de algo que no existe. ¿Pero no existe, realmente? Tal vez se pueda decir, desde algún punto de vista, que una imagen ilusoria no es real. Pero ¿podríamos afirmarlo desde el punto de vista del fenómeno de la percepción? Si lo vemos, ¿no tendríamos derecho a decir que es real? ¿Algo tiene que ser material y poder tocarse, para ser real? ¿No basta simplemente con verlo? Este artículo de reflexión trata sobre el tema de lo ilusorio, de los espejismos y apariencias engañosas que, no obstante su naturaleza falaz, existen y se perciben, y son procesados por nuestra mente como fenómenos sensoriales que conforman nuestra percepción. El hilo conductor es un viaje a través de diferentes paisajes espejados: el del azar, el de las artes y el de la arquitectura. 1Diccionario de la Real Academia Española

  17. La banque de la Nouvelle-Calédonie. Existence éphémère, expérience oubliée (1874-1877)

    OpenAIRE

    Buttet, Catherine

    2009-01-01

    La Nouvelle-Calédonie, colonie pénale peu peuplée, était en 1870 tributaire des commerçants et du Trésor public pour l'ensemble des opérations bancaires. Née d'une société de colonisation d'initiative privée, la Banque de la Nouvelle-Calédonie fut une expérience distincte des anciennes banques coloniales et dont le nouveau cadre statutaire servit ensuite à la Banque d'Indochine. La banque reçut l'aval du gouvernement sous la forme d'une autorisation puis d'un privilège. Rapidement, la banque ...

  18. Produtividade e jornada de trabalho na indústria de calçados de Franca - quem fica com os ganhos?

    OpenAIRE

    Corrêa, Lauro Henrique Guimarães

    2005-01-01

    O presente trabalho tem como eixo central a problematização das relações que permeiam a evolução e o desempenho de fatores econômicos tais como a produtividade, os níveis de emprego e a jornada de trabalho no contexto do modo de produção capitalista na particularidade da indústria calçadista de Franca (SP), o maior pólo brasileiro de fabricação de calçados masculinos. Inserindo-se no rol das formulações que advogam a necessidade, a importância e a justiça de se promover redu...

  19. Comportamiento de una pista experimental de pavimento flexible con base estabilizada con cal Behavior of an experimental track of flexible pavement with lime stabilized base

    Directory of Open Access Journals (Sweden)

    César Augusto Hidalgo Montoya

    2010-01-01

    Full Text Available En este trabajo se presentan resultados de una investigación realizada para determinar las propiedades de deformabilidad de bases estabilizadas con cal a partir de ensayos de campo no destructivos. Se realizaron ensayos de placa estática y viga Benkelman en un tramo de prueba de pavimento flexible de 70m de longitud. Se usaron diferentes mezclas de suelo-cal y varios espesores de la estructura para evaluar el comportamiento del pavimento. A partir de los resultados de estos ensayos fueron realizados retroanálisis del comportamiento del pavimento. El método de los elementos finitos y el modelo elástico de esfuerzos y deformaciones en sistema de capas múltiples se usaron en los retroanálisis para estimar los módulos de deformabilidad de la base estabilizada con cal. Se concluye que la adición de cal mejora sustancialmente las propiedades de los pavimentos evaluados.This paper presents results of a research carried out to determine the proprieties of deformation of lime stabilized bases using non destructive field tests. Static plate tests and Benkelman beam tests were made on an experimental track of flexible pavement of 70 m length. Several mixtures of soil-lime and several thickness of the stabilized base were used to evaluate the behavior of the pavement. With the results of these tests, back analysis of the behavior of pavement was carried out. The finite elements method and the elastic stress and strain in a multi layers system were used to estimate the deformation modulus of the lime stabilized bases. It is concluded that the lime addition significantly improves the properties of evaluated pavements.

  20. Earth's crust and heat flow in the Fossa Brandanica, Southern Italy. [0. 4 to 2. 2. mu. cal/cm/sup 2//sec

    Energy Technology Data Exchange (ETDEWEB)

    Mongelli, F; Ricchetti, G

    1970-01-01

    A detailed study has been made of the Fossa Bradanica by means of seven shallow boreholes drilled in the clays. The observed gradients together with the results of in-situ thermal conductivity measurements indicate the heat flow as being between 0.4 and 2.2 ..mu..cal/cm/sup 2/ . sec. The influence of geographic and geological factors is discussed. The results obtained are not incompatible with crustal structures indicated by other geophysical methods.

  1. Constituents of Propolis: Chrysin, Caffeic Acid, p-Coumaric Acid, and Ferulic Acid Induce PRODH/POX-Dependent Apoptosis in Human Tongue Squamous Cell Carcinoma Cell (CAL-27).

    Science.gov (United States)

    Celińska-Janowicz, Katarzyna; Zaręba, Ilona; Lazarek, Urszula; Teul, Joanna; Tomczyk, Michał; Pałka, Jerzy; Miltyk, Wojciech

    2018-01-01

    Propolis evokes several therapeutic properties, including anticancer activity. These activities are attributed to the action of polyphenols. Previously it has been demonstrated, that one of the most abundant polyphenolic compounds in ethanolic extracts of propolis are chrysin, caffeic acid, p -coumaric acid, and ferulic acid. Although their pro-apoptotic activity on human tongue squamous cell carcinoma cells (CAL-27) was established previously, the detailed mechanism of this process remains unclear. Considering the crucial role of proline metabolism and proline dehydrogenase/proline oxidase (PRODH/POX) in the regulation of cancer cell survival/apoptosis, we studied these processes in polyphenol-treated CAL-27 cells. All studied polyphenols evoked anti-proliferative activity, accompanied by increased PRODH/POX, P53, active caspases-3 and -9 expressions and decreased collagen biosynthesis, prolidase activity and proline concentration in CAL-27 cells. These data suggest that polyphenols of propolis induce PRODH/POX-dependent apoptosis through up-regulation of mitochondrial proline degradation and down-regulation of proline utilization for collagen biosynthesis.

  2. Moda rápida na indústria calçadista: intervenção setorial no arranjo produtivo de Nova Serrana

    Directory of Open Access Journals (Sweden)

    Giancarlo Medeiros Pereira

    2014-09-01

    Full Text Available Em 2008, fabricantes de calçados da região de Nova Serrana juntamente com seus fornecedores de insumos articularam uma intervenção setorial destinada a aumentar a diversidade da oferta na cadeia de suprimentos, acelerar o desenvolvimento de novos produtos e reduzir os custos dos insumos. A despeito do interesse das partes, a intervenção não produziu os resultados desejados. Este artigo busca entender os motivos que bloquearam tais objetivos. Foram estudados quinze fabricantes de calçados e quinze fornecedores de insumos. O método de pesquisa foi o estudo de caso múltiplo. Em sessões de grupos focados com os empresários, foi construída uma estrutura de construtos e variáveis que desvelou a inter-relação entre a flexibilidade de suprimento e o desenvolvimento de produtos. Os achados sugerem que a demanda por exclusividade de insumos, imposta pelos grandes fabricantes de calçados, a possibilidade de conflito com os representantes dos grandes e médios fornecedores de insumos, o receio de cópia das criações, a desatenção a demandas locais e o desempenho insatisfatório em entregas causaram o insucesso da intervenção.

  3. Modeling of Trans-boundary Transport of Air Pollutants in the California-Mexico Border Region during Cal-Mex 2010

    Science.gov (United States)

    Bei, N.; Zavala, M. A.; Lei, W.; Li, G.; Molina, L. T.

    2010-12-01

    The US and Mexico share a common air basin along the ~200 km border between California and Baja California. The economical activities in this region are heavily influenced by the international trade and commerce between Mexico and the US that mainly occurs through the borders of the sister cities of San Diego-Tijuana and Calexico-Mexicali. The diversity and differences in the characteristics of emissions sources of air pollutants in the California-Mexico border region make this an important area for the study of the chemistry and trans-boundary transport of air pollutants. During May-June of 2010, the Cal-Mex 2010 field campaign included a series of measurements aimed at characterizing the emissions from major sources in the California-Mexico border region and assessing the possible impacts of these emissions on local and regional air quality. In this work we will present the results of the use of the Comprehensive Air quality model with extensions (CAMx) in a modeling domain that includes the sister cities of San Diego-Tijuana and Calexico-Mexicali for studying events of trans-boundary transport of air pollutants during Cal-Mex 2010. The measurements obtained during the Cal-Mex 2010 field campaign are used in the evaluation of the model performance and in the design of air quality improvement policies in the California-Mexico border region.

  4. Puente sobre el rio Medway

    Directory of Open Access Journals (Sweden)

    Freeman, Fox, Ingenieros

    1963-02-01

    have been prestressed both longitudinally and transversally. Between the two circulation roadways an elastic barrier has been placed, supported on metal posts.El puente sobre el río Medway tiene la misión de salvar dicho río en el nuevo trazado de carretera necesario para aliviar el denso tráfico estival entre Dower y Londres. Está situado en las proximidades de la ciudad de Rochester. La estructura se ha construido utilizando las vías de concurso. De todos los tipos presentados se eligió una estructura de hormigón armado. La longitud total de la obra es de 1.000 m. Los tres tramos principales de la obra salvan el río. El central es de 152 m de luz, y los dos adyacentes son de 103 m cada uno. Los accesos tienen un total de 18 tramos, que arrojan una longitud de 654 m. La anchura del puente es de 34 m, y la calzada se ha subdividido en dos direcciones de tráfico de 7,30 m cada una y, además, se han dejado dos espaldones laterales de 2,40 m de anchura. En planta se puede admitir que el puente tiene una alineación recta con una ligerísima curva, y que en el plano vertical presenta una pendiente de desagüe entre las pilas 9 y 10. Los estribos son de hormigón armado: tipo celular el del este y de hormigón en masa el del oeste. Los estribos se apoyan sobre pilotes hexagonales de hormigón armado cuya circunferencia circunscrita tiene 55 cm de radio y de 12 a 20 m de longitud. Cuando el firme se hallaba a profundidades inferiores a 6 m, los estribos se cimentaban directamente sobre el firme. Las pilas constituyen pórtico y tienen una altura variable de 9 a 30 m sobre el nivel del suelo. Los tramos de acceso forman una estructura continua simplemente apoyada. Cada tramo se compone de ocho vigas longitudinales de 30 a 41 m de longitud y de 190 toneladas cada una. Estas vigas son del tipo pretensado y prefabricado. El tramo central es del tipo cantilever, constituido por dos brazos, de 30 m de longitud, formados por vigas cajón. Cada una de estas vigas consta

  5. Puente sobre el Oosterschelde, Holanda

    Directory of Open Access Journals (Sweden)

    Hoving, H. T.

    1967-03-01

    Full Text Available This new bridge, forming part of the Delta project, is made of concrete, and was built by successive overhangs. Precast units were mainly used. The bridge is 5,000 m long, and is 11.85 m wide. The main spans are 95 m in length, except one, which can be opened up to sea traffic, which is 40 m long. The free height of the bridge over the sea is 15 m, which is insufficient for large ships. This required that one of the spans, in deep water, should open up, on hinges, and provide free passage to large ships. The intermediate bridge supports are of special interest. They rest on piles which go down to 38 m. They are hollow, cylindrical, of 4.35 m external diameter, and are driven into the ground in several stages, as they penetrate through the sands at the bottom of the Oosterschelde. To drive them in, an excavating device, inside the pile, was utilised, and also a dredging and suction mechanism, to clean out the bottom, and allow the piles to sink by gravity. But when external friction did not allow this to happen, the piles were weighed down with up to 500 tons of ballast. A series of three of these piles, in a row, makes up each bridge support. A cross member over the pile heads supports, in turn, the bridge deck. The bridge was built in successive sections, overhanging from each support, and then finally connected with a central portion. Use of precast units has been very extensive, so that the bridge can be justiaflably regarded as being prefabricated.Este nuevo puente, que forma parte del Plan de obras denominadas del Delta, es de hormigón y se ha construido por el procedimiento de voladizos sucesivos, utilizando, en su mayor parte, elementos prefabricados. Tiene una longitud total de 5.000 m; una anchura de 11,85 m; tramos principales de 95 m de luz, salvo uno, levadizo, que tiene 40 m. La altura libre sobre las ag^uas del mar es de 15 m, que es insuficiente para las naves de gran tonelaje; esto exigió que uno de sus tramos, en aguas

  6. Submicron organic aerosol in Tijuana, Mexico, from local and Southern California sources during the CalMex campaign

    Science.gov (United States)

    Takahama, S.; Johnson, A.; Guzman Morales, J.; Russell, L. M.; Duran, R.; Rodriguez, G.; Zheng, J.; Zhang, R.; Toom-Sauntry, D.; Leaitch, W. R.

    2013-05-01

    The CalMex campaign was conducted from May 15 to June 30 of 2010 to study the properties and sources of air pollution in Tijuana, Mexico. In this study, submicron organic aerosol mass (OM) composition measured by Fourier Transform Infrared Spectroscopy (FTIR), Aerosol Chemical Speciation Monitor (ACSM), and X-ray spectromicroscopy are combined with statistical analysis and measurements of other atmospheric constituents. The average (±one standard deviation) OM concentration was 3.3 ± 1.7 μg m-3. A large source of submicron aerosol mass at this location was determined to be vehicular sources, which contributed approximately 40% to the submicron OM; largely during weekday mornings. The O/C ratio estimated from ACSM measurements was 0.64 ± 0.19; diurnal variations in this value and the more oxygenated fraction of OM as determined from Positive Matrix Factorization and classification analyses suggest the high degree of oxygenation originates from aged OM, rather than locally-produced secondary organic aerosol. A large contribution of this oxygenated aerosol to Tijuana from various source classes was observed; some fraction of this aerosol mass may be associated with non-refractory components, such as dust or BC. Backtrajectory simulations using the HYSPLIT model suggest that the mean wind vector consistently originated from the northwest region, over the Pacific Ocean and near the Southern California coast, which suggests that the origin of much of the oxygenated organic aerosol observed in Tijuana (as much as 60% of OM) may have been the Southern California Air Basin. The marine aerosol contribution to OM during the period was on average 23 ± 24%, though its contribution varied over synoptic rather than diurnal timescales. BB aerosol contributed 20 ± 20% of the OM during the campaign period, with notable BB events occurring during several weekend evenings.

  7. SWFSC/MMTD/CCE: Oregon, California, and Washington Line-transect Experiment (ORCAWALE) 1996, 2001, 2008 and CA Current Cetacean and Ecosystem Assessment Survey (CalCurCEAS) 2014

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The California Current Cetacean and Ecosystem Assessment Survey (CalCurCEAS) is a marine mammal assessment survey of the U.S. West Coast waters. Similar research in...

  8. Somos un envase : Discursos sobre el aborto

    OpenAIRE

    Löcher, Jennifer Irene

    2014-01-01

    No hay persona que no tenga opinión acerca del asunto y, cada vez más, la sociedad argentina debate sobre la pregunta de si se debe legalizar/despenalizar el aborto o no. Nunca antes se habló tanto sobre el tema públicamente: se publican artículos en los diarios, hay manifestaciones a favor y hay manifestaciones en contra de la legalización del aborto. El siguiente trabajo pretende relevar y analizar discursos que circulan socialmente alrededor del debate sobre el aborto. (Párrafo extraíd...

  9. Blocos solo-cal utilizando resíduo da construção civil Soil-lime bricks using building waste

    Directory of Open Access Journals (Sweden)

    S. M. R. Patricio

    2013-03-01

    Full Text Available Novas técnicas vêm sendo desenvolvidas com o objetivo de incentivar o desenvolvimento sustentável e tentar minimizar a degradação ambiental causada pela extração indiscriminada de recursos naturais além da constante geração de resíduos de construção e demolição. Esta pesquisa objetiva avaliar a utilização de resíduos da construção civil, oriundos de demolição, como agente pozolânico na fabricação de blocos solo-cal. As matérias primas convencionais e alternativas (resíduos foram caracterizados por meio dos seguintes ensaios: massa especifica real, área específica, análise granulométrica por peneiramento e por difração á laser,limites de liquidez e plasticidade, análise química e difração de raios X. Para os ensaios tecnológicos foram confeccionados corpos de prova solo-cal no traço 1:10 em peso, com substituição da cal por resíduos nas seguintes proporções: 0, 10, 20, 25, 30, 40, 50 e 75%. Os corpos de prova foram curados por períodos de 28, 60 e 90 dias, em câmara úmida com 100% de umidade relativa, em seguida determinada sua resistência à compressão simples e absorção de água. Com os melhores resultados de resistência a compressão simples, foram moldados blocos solo-cal e solo-cal-resíduo. Os resultados obtidos com os blocos solo-cal incorporados com resíduo evidenciaram valores dentro das especificações das normas da ABNT, apontando que existe viabilidade técnica no aproveitamento de resíduos de demolição para uso na fabricação de blocos solo-cal sem função estrutural.New techniques have been developed with the aim of encouraging sustainable development and try to minimize the environmental degradation caused by indiscriminate extraction of natural resources and the constant generation of building waste. This research aims to evaluate the use building waste, as pozzolanic agent in the soil-lime bricks manufacture. Raw materials conventional and alternatives (waste were

  10. Estudo multicasos sobre atividades inovativas

    Directory of Open Access Journals (Sweden)

    Sonia Regina Hierro Parolin

    2013-09-01

    Full Text Available Em estudos sobre competitividade argumenta-se que as empresas necessitam de estratégias baseadas em inovações e de capacidades internas em constantes e intensas transformações, não somente nos padrões tecnológicos, mas também no encadeamento do processo de gestão das atividades inovativas, como processos dinâmicos, não lineares e diversificados, em função de múltiplos fatores dos ambientes interno e externo. Para contribuir com essas discussões, neste artigo apresenta-se um estudo multicasos em quatro indústrias de médio e grande portes, de segmentos, densidades tecnológicas e históricos com inovações diferentes entre si. Como principais resultados, salientam-se o encadeamento das atividades inovativas como parte de uma estratégia organizacional para obter resultados com inovação e a afluência de todas as pessoas, e não somente as alocadas em pesquisa e desenvolvimento, para o cumprimento dessa estratégia.

  11. Notas sobre publicaciones medievales portuguesas

    Directory of Open Access Journals (Sweden)

    José Luis MARTÍN

    2009-11-01

    Full Text Available Contra lo que debiera suceder, la proximidad con Portugal no incita al conocimiento de su historia y son muy raros los manuales de Historia de España en los que se concede a la Edad Media Portuguesa la importancia que realmente tiene, y en los tratados de Historia Medieval Europea el espacio dedicado a Portugal es mínimo, al menos hasta la época de los Descubrimientos; por otra parte, son contados los medievalistas españoles que se interesan por la historia de Portugal. Ante estos silencios y ante la escasa presencia en las bibliotecas españolas de obras portuguesas el estudiante de historia puede pensar que el país vecino carece de medievalistas de relieve, que su historia medieval está por hacer... y nada más lejos de la realidad como intentaré probar en este breve comentario, sin ánimo exhaustivo, sobre algunas de las últimas publicaciones aparecidas en Portugal.

  12. CALS Test Network Handbook

    Science.gov (United States)

    1993-03-01

    Ltd Gillette Company Dorset, England Boston MA Foreign Broadcast Information Set. Giordano Associates Inc Frederick MD Long Branch NJ Formtek Inc...Associates Orem UT College Park MD InfoDesign Corp Johns Hopkins University Toronto, Ontario Laurel MD Information Spectrum Inc Joint Committee on Printing...Inc Washington DC Bel Air MD Navy Naval Research Laboratory OutSource Inc Washington DC Los Angeles CA 22 i +’ . S.. . -- -,•w• -- w,,Wmwmm mm -- m mmm

  13. CliniCal

    African Journals Online (AJOL)

    2009-12-01

    Dec 1, 2009 ... tion choices, available data from clinical studies and expert paediatric pharmacology ... large volumes required or palatability, solid dosage formulations are ... crushed and added to food or liquid, it is important that the entire ...

  14. CalA, a Cyanobacterial AbrB Protein, Interacts with the Upstream Region of hypC and Acts as a Repressor of Its Transcription in the Cyanobacterium Nostoc sp. Strain PCC 7120▿ †

    Science.gov (United States)

    Agervald, Åsa; Zhang, Xiaohui; Stensjö, Karin; Devine, Ellenor; Lindblad, Peter

    2010-01-01

    The filamentous, heterocystous, nitrogen-fixing cyanobacterium Nostoc sp. strain PCC 7120 may contain, depending on growth conditions, up to two hydrogenases directly involved in hydrogen metabolism. HypC is one out of at least seven auxiliary gene products required for synthesis of a functional hydrogenase, specifically involved in the maturation of the large subunit. In this study we present a protein, CalA (Alr0946 in the genome), belonging to the transcription regulator family AbrB, which in protein-DNA assays was found to interact with the upstream region of hypC. Transcriptional investigations showed that calA is cotranscribed with the downstream gene alr0947, which encodes a putative protease from the abortive infection superfamily, Abi. CalA was shown to interact specifically not only with the upstream region of hypC but also with its own upstream region, acting as a repressor on hypC. The bidirectional hydrogenase activity was significantly downregulated when CalA was overexpressed, demonstrating a correlation with the transcription factor, either direct or indirect. In silico studies showed that homologues to both CalA and Alr0947 are highly conserved proteins within cyanobacteria with very similar physical organizations of the corresponding structural genes. Possible functions of the cotranscribed downstream protein Alr0947 are presented. In addition, we present a three-dimensional (3D) model of the DNA binding domain of CalA and putative DNA binding mechanisms are discussed. PMID:20023111

  15. Los derechos de autor sobre obtenciones vegetales

    Directory of Open Access Journals (Sweden)

    Rosario Silva Gilli

    2015-01-01

    Full Text Available Contenido: Las creaciones en la agricultura. Los derechos de autor sobre obtenciones vegetales. El Convenio Internacional para la protección de las obtenciones vegetales (París 1961 y sus revisiones de Ginebra 1972, 1978,1991 Objeto de la protección legal. Condiciones del cultivar. Alcance de la protección. La protección de obtenciones vegetales en el Mercosur. Los Derechos de autor en el Mercosur. El Protocolo de Armonización de normas sobre Propiedad Intelectual en el Mercosur. El Acuerdo de Cooperación y facilitación sobre la protección de las obtenciones vegetales en los Estados Partes del Mercosur.  Alcance de la normativa Mercosur. Los Derechos sobre cultivares en Uruguay. Los Derechos de autor como derechos humanos. ¿Derechos de autor vs. derecho de propiedad intelectual? Reflexión final

  16. Conocimientos sobre incontinencia urinaria en pacientes hospitalizados

    Directory of Open Access Journals (Sweden)

    Otto Guillen Lopez

    2003-10-01

    Full Text Available Objetivo: Determinar el nivel de conocimientos sobre incontinencia urinaria (IU en pacientes hospitalizados. Material y métodos: Estudio transversal, descriptivo; se entrevistó una muestra por saturación de 325 pacientes hospitalizados de 30 años a más del Hospital Nacional Cayetano Heredia (HNCH, Lima - Perú, utilizando un cuestionario de conocimientos sobre incontinencia, considerándose como adecuado conocimiento cuando había más de 50% de aciertos en él. Resultados: Solamente 35.7% tuvieron conocimiento adecuado sobre IU. Hasta 90% conocía acerca del éxito del tratamiento y posibilidad de curación de los pacientes incontinentes. Sin embargo, 75% consideraron erróneamente que la IU era consecuencia inevitable del envejecimiento, mientras menos de 50% de pacientes conocía el papel de ciertos medicamentos y ejercicios en la IU. Conclusiones: Se demostró un pobre conocimiento general sobre la IU, siendo necesaria una intervención de los profesionales de la salud en la educación de la población, sobre todo hospitalizada y con factores predisponentes para desarrollar IU, para así poder modificar las ideas erróneas que existen sobre el tema. (Rev Med Hered 2003; 14: 186-194.

  17. PERSPECTIVAS INFANTILES SOBRE LA TERRITORIALIDAD

    Directory of Open Access Journals (Sweden)

    NOELIA ENRIZ

    2009-12-01

    Full Text Available In this paper we propose a different approach to children's ideas about the geographical area in the particular context of the Mbyá Guarani population, from Misiones (Argentine. The territorial fragility, that is exposed to the indigenous people in Argentina aremanifested daily in several areas. Mbyá population, has been crossed by the boundaries of national states of Paraguay, Brazil and Argentina. The sedentary and enclosures land processes in different states, have prompted changes in the logic of subsistence, housing and community organization. In Misiones province case, bureaucratic accreditation of land titles is postponed, the state is not committed to the realization of this right.RESUMEN: En este trabajo nos proponemos un acercamiento a las diversas ideas infantiles sobre el territorio habitado, en el contexto particular de la población mbyá guaraní de Misiones. La fragilidad territorialidad a la que es expuesta la población indígena en Argentina se manifiestan cotidianamente en diversas áreas. La población mbyá, ha sido surcada por los límites de los estados nacionales de Paraguay, Brasil y Argentina. La sedentarización y los cercamientos de tierras en los diferentes estados, han impulsado transformaciones de las lógicas de subsistencia, de habitación y organización comunitaria. En el caso de la provincia de Misiones la acreditación burocrática de los títulos de tierras se encuentra aplazada, el estado no se compromete con la concreción de este derecho.

  18. Consideraciones preliminares sobre la credibilidad

    Directory of Open Access Journals (Sweden)

    Fernando Verdugo

    2004-01-01

    Full Text Available A modo de introducción al Seminario Interno de Profesores de la Facultad de Teología de la PUC, el autor recuerda, en primer lugar, lo que suele entenderse por "credibilidad" y, también, algunos de los criterios generales por los cuales algo o alguien adquiere la calidad de creíble (el que sea razonable, relevante o significativo, capaz de producir gozo estético, etc.. Luego, en la parte más extensa, el autor vuelve a llamar la atención sobre la necesidad de atender a los condicionamientos culturales de la fe cristiana. La fe, al igual que toda experiencia humana, está culturalmente mediada. Tomar conciencia de ese hecho y asumir las consecuencias metodológicas es indispensable para una teología que quiere poner atención a los desafíos actuales y contribuir así a la credibilidad del cristianismoThis article reprints the introductory session to the internal seminar of lecturers from the Faculty of Theology of the UC. In the first place, the author sums up what is usually understood by `credibility' and the general criteria through which something or someone gains credibility (being reasonable, relevant or significant, capable of producing aesthetic pleasure. Then the author deals at length with the need to take notice of the cultural conditionings of the Christian faith. The faith, the same as any other human experience, is culturally mediated. It is crucial for theology to become aware of this fact and come to terms with its methodological consequences, if it wants to face current challenges and so contribute to the credibility of Christianity

  19. DESEMPENHO FÍSICO-MECÂNICO DE SOLO ARGILOSO ESTABILIZADO COM CAL E SILICATO DE SÓDIO VISANDO À APLICAÇÃO EM CONSTRUÇÕES RURAIS PHYSICAL AND MECHANICAL BEHAVIOR OF A CLAYEY SOIL STABILIZED WITH LIME AND SODIUM SILICATE FOR RURAL BUILDING PURPOSES

    Directory of Open Access Journals (Sweden)

    Wesley Jorge Freire

    2007-09-01

    Full Text Available

    O uso de aditivos químicos em solos destinados à construção civil visa melhorar as suas características mecânicas e o seu comportamento sob a ação da água. O objetivo deste trabalho foi estudar o efeito da incorporação ao solo de estabilizantes químicos (cal e silicato de sódio sobre as propriedades mecânicas de um solo argiloso. Os teores de cal foram de 0%, 6% e 10%, e a dosagem de silicato de sódio foi de 4%. O solo foi submetido a ensaios de caracterização a fim de se determinar seus principais índices físicos. Foram moldados corpos-de-prova cilíndricos com 127 mm de altura e 100 mm de diâmetro, os quais foram curados em câmara úmida por 7, 28 e 56 dias. Após cada período de cura os corpos-de-prova foram submetidos ao ensaio de compressão simples. O ensaio de absorção de água foi realizado aos sete dias. Somente o teor de 10% de cal associada ao silicato de sódio permitiu atingir o mínimo de resistência exigido pela norma para tijolos de solo-cimento, e em termos de capacidade de absorção total, nenhum tratamento atingiu os valores recomendados por essa norma. Os resultados sugerem um uso promissor do silicato de sódio com vistas à melhoria das propriedades físico-mecânicas relacionadas à resistência e à durabilidade de solos destinados à construções rurais.

    PALAVRAS-CHAVE: Solo-cal; resistência à compressão; estabilização de solos; terra para construção.

    Use of chemical stabilizers in earth aims at improving mechanical characteristics and behavior under water influence. The objective of this research was to study the effect of chemical additives (lime and sodium silicate on mechanical properties of a clayey soil. The lime rates in the soil-lime mixtures were 0%, 6%, and 10%, and the sodium silicate rate was 4%. Soil was

  20. Alteração de atributos físicos em latossolo com aplicação superficial de escória de aciaria, lama cal, lodos de esgoto e calcário Oxisol physical attributes affected by surface application of flue dust, aqueous lime, sewage sludges and limestone

    Directory of Open Access Journals (Sweden)

    Juliano Corulli Corrêa

    2009-04-01

    Full Text Available Os resíduos industriais e urbanos podem atuar como condicionadores do solo, pois possuem a capacidade de alterar suas propriedades físicas. Contudo, não há referência para os atributos físicos do solo quando esses resíduos são aplicados sobre a superfície do solo no sistema plantio direto. O objetivo deste trabalho foi avaliar o efeito da aplicação superficial de escória de aciaria, lama cal, lodos de esgoto e calcário nos atributos físicos de um Latossolo Vermelho distrófico sob sistema plantio direto. Os tratamentos foram constituídos por quatro resíduos: lodos de esgoto centrifugado - LC e de biodigestor - LB, escória de aciaria - E, e lama cal - Lcal, interagindo com quatro doses (0, 2, 4 e 8 t ha-1, aplicadas na forma seca mais uma testemunha (controle, constituída da aplicação de 2 t ha-1 de calcário. O delineamento experimental foi em blocos casualizados no esquema fatorial 4 x 4 + 1, com quatro repetições. A presença de Ca na composição de lama cal, lodo de esgoto centrifugado, escória de aciaria e calcário permite o aumento da agregação das partículas, diâmetro médio ponderado, índice de estabilidade de agregados, porosidade e retenção de água, sendo essas alterações distintas para cada fonte, dose e profundidade de reação no solo. A aplicação superficial da lama cal na dose de 8 t ha-1, após 27 meses de reação, proporcionou a maior agregação das partículas no solo, desde a superfície até 40 cm de profundidade.The residues flue dust, aqueous lime and sewage sludge (centrifuge and biodigestor may affect soil physical attributes. The use of industrial and urban residues in soil, with emphasis to sewage sludge, was done in tilled soil, and there are no repports on soil physical attributes affected by these residues on soil surface in no-till system The goal of this study was to evaluate the physical attributes of a an Oxisol in no-till system by surface dispoasal of sewage sludge, flue

  1. Identification and synchronization of the common cosmic-ray signal in the IntCal13 14C calibration and the Greenland ice-core 10Be records

    Science.gov (United States)

    Muscheler, Raimund; Adolphi, Florian; Bronk Ramsey, Christopher; Rasmussen, Sune; Hughen, Konrad; Cooper, Alan; Turney, Chris

    2017-04-01

    The production rates of cosmogenic radionuclides (such as 10Be and 14C) are modulated by the solar and geomagnetic shielding of galactic cosmic rays. In addition, 14C and 10Be are influenced by the carbon cycle and the atmospheric transport and deposition, respectively. Isolating and identifying the common production signal allows us to synchronize ice core 10Be and tree ring 14C records during the Holocene (Adolphi and Muscheler, 2016), thereby connecting ice core climate records with 14C-dated records. Extending this comparison further back in time is challenging due to deteriorating quality of the 14C calibration record, IntCal13, (Reimer et al., 2013) and possible unidentified climate influences on the ice-core 10Be records. Nevertheless, by focusing on the most prominent production-rate features this comparison can be extended far back into the last glacial where, for example, the linkage of tree-ring based Kauri 14C data and the Greenland ice-core time scale (GICC05) suggested unresolved data and/or time scale differences around the period of the Laschamp geomagnetic field minimum at about 42000 yrs BP (Muscheler et al., 2014). Here we show that the data underlying the IntCal13 14C record and the ice-core 10Be records exhibit common variability that allows us to tentatively link the ice core GICC05 time scale to the radiocarbon time scale for almost the complete radiocarbon dating range. The observed time scale differences could be related to uncertainties in both the U/Th-based dating of the IntCal13 calibration data set and the GICC05 time scale, and we show that the two can be reconciled within the uncertainties of the ice-core layer counting. This direct comparison between IntCal13 and 10Be also suggests that the 14C differences shown in (Muscheler et al., 2014) around the Laschamp geomagnetic field minimum can be reduced by moderate adjustments to the GICC05 time scale. References: Adolphi, F., and Muscheler, R., 2016, Synchronizing the Greenland ice

  2. Efecto de la plata sobre el proceso de síntesis por fusión de un pigmento del tipo azul ultramarino

    OpenAIRE

    Castillo, Wilmer; González, Luis; Sánchez, Selene; Ocanto, Freddy; Linares, Carlos F

    2011-01-01

    Se realizó la síntesis de pigmentos inorgánicos del tipo azul ultramarino a partir de la mezcla de zeolita A, carbonato de sodio, azufre elemental y contenido de plata entre un 0 al 5% p/p a una temperatura de 800°C por espacio de 4h. Los sólidos fueron caracterizados por la técnicas de difracción de rayos X (DRX), infrarrojo con transformada de Fourier (FTIR) y espectroscopia de reflectancia de UV a fin de verificar la estructura y coloración de los materiales obtenidos. Los resultados mostr...

  3. Modeling the formation and aging of secondary organic aerosols in Los Angeles during CalNex 2010

    Science.gov (United States)

    Hayes, P. L.; Carlton, A. G.; Baker, K. R.; Ahmadov, R.; Washenfelder, R. A.; Alvarez, S.; Rappengluck, B.; Gilman, J. B.; Kuster, W. C.; de Gouw, J. A.; Zotter, P.; Prevot, A. S. H.; Szidat, S.; Kleindienst, T. E.; Offenberg, J. H.; Ma, P. K.; Jimenez, J. L.

    2015-05-01

    Four different literature parameterizations for the formation and evolution of urban secondary organic aerosol (SOA) frequently used in 3-D models are evaluated using a 0-D box model representing the Los Angeles metropolitan region during the California Research at the Nexus of Air Quality and Climate Change (CalNex) 2010 campaign. We constrain the model predictions with measurements from several platforms and compare predictions with particle- and gas-phase observations from the CalNex Pasadena ground site. That site provides a unique opportunity to study aerosol formation close to anthropogenic emission sources with limited recirculation. The model SOA that formed only from the oxidation of VOCs (V-SOA) is insufficient to explain the observed SOA concentrations, even when using SOA parameterizations with multi-generation oxidation that produce much higher yields than have been observed in chamber experiments, or when increasing yields to their upper limit estimates accounting for recently reported losses of vapors to chamber walls. The Community Multiscale Air Quality (WRF-CMAQ) model (version 5.0.1) provides excellent predictions of secondary inorganic particle species but underestimates the observed SOA mass by a factor of 25 when an older VOC-only parameterization is used, which is consistent with many previous model-measurement comparisons for pre-2007 anthropogenic SOA modules in urban areas. Including SOA from primary semi-volatile and intermediate-volatility organic compounds (P-S/IVOCs) following the parameterizations of Robinson et al. (2007), Grieshop et al. (2009), or Pye and Seinfeld (2010) improves model-measurement agreement for mass concentration. The results from the three parameterizations show large differences (e.g., a factor of 3 in SOA mass) and are not well constrained, underscoring the current uncertainties in this area. Our results strongly suggest that other precursors besides VOCs, such as P-S/IVOCs, are needed to explain the observed

  4. Consenso mexicano sobre la dispepsia

    Directory of Open Access Journals (Sweden)

    R. Carmona-Sánchez

    2017-10-01

    Full Text Available Desde la publicación de las guías de dispepsia 2007 de la Asociación Mexicana de Gastroenterología ha habido avances significativos en el conocimiento de esta enfermedad. Se realizó una revisión sistemática de la literatura en PubMed (01/2007 a 06/2016 con el fin de revisar y actualizar las guías 2007 y proporcionar nuevas recomendaciones basadas en evidencia. Se incluyeron todas las publicaciones en español e inglés, de alta calidad. Se redactaron enunciados que fueron votados utilizando el método Delphi. Se estableció la calidad de la evidencia y la fuerza de las recomendaciones según el sistema GRADE para cada enunciado. Treinta y un enunciados fueron redactados, votados y calificados. Se informan nuevos datos sobre definición, clasificación, epidemiología y fisiopatología. La endoscopia debe realizarse en dispepsia no investigada cuando hay datos de alarma o falla al tratamiento. Las biopsias gástricas y duodenales permiten confirmar infección por Helicobacter pylori y excluir enfermedad celiaca, respectivamente. Establecer una fuerte relación médico-paciente, cambios en la dieta y en el estilo de vida son útiles como medidas iniciales. Los bloqueadores H2, inhibidores de la bomba de protones, procinéticos y fármacos antidepresivos son efectivos. La erradicación de H. pylori puede ser eficaz en algunos pacientes. Con excepción de Iberogast y rikkunshito, las terapias complementarias y alternativas carecen de beneficio. No existe evidencia con respecto a la utilidad de prebióticos, probióticos o terapias psicológicas. Los nuevos enunciados proporcionan directrices basadas en la evidencia actualizada. Se presenta la discusión, el grado y la fuerza de la recomendación de cada uno de ellos.

  5. Datos para el conocimiento del patrimonio minero de la comarca aragonesa de los Monegros. II hornos de yeso y hornos de cal

    OpenAIRE

    Mata Perello, Josep Maria; Alfonso Abella, María Pura; Climent Costa, Ferran; Parcerisa Duocastella, David; Pocoví Juan, Andrés; Vilaltella Farràs, Jaume

    2013-01-01

    En este artículo, nos centraremos en el Patrimonio Minero de la comarca aragonesa de los Monegros, especialmente en el relacionado con las Hornos de Yeso y con los Hornos de Cal. Se trata de una comarca situada en el centro de Aragón, ubicada totalmente dentro de la Depresión Geológica del Ebro, entre afloramientos de materiales cenozoicos. Dentro de esta comarca existen interesantes elementos del Patrimonio Minero de la Comunidad Aragonesa. Estos elementos se hallan relacionados fundament...

  6. Disponibilidade de metais pesados em Latossolo com aplicação superficial de escória, lama cal, lodos de esgoto e calcário Heavy metal exchangeable in an Oxisol with surface application of flue dust, aqueous lime, sewage sludge and limestone

    Directory of Open Access Journals (Sweden)

    Juliano Corulli Corrêa

    2008-03-01

    Full Text Available O objetivo deste trabalho foi avaliar alguns atributos químicos do solo e a disponibilidade de cádmio (Cd, cromo (Cr, níquel (Ni, mercúrio (Hg, chumbo (Pb e arsênio (As, por meio da extração pelo DTPA, em conseqüência da aplicação superficial de escória de aciaria, lama cal e lodos de esgoto centrifugados e de biodigestores, nas doses 0 (testemunha, 2, 4 e 8 Mg ha-1 e um tratamento adicional composto pela calagem superficial na dose 2 Mg ha-1. O experimento foi conduzido em delineamento de blocos ao acaso, em condições de campo, em área sob sistema plantio direto, durante 2003 e 2004. A aplicação superficial de escória de aciaria, lama cal, lodo de esgoto centrifugado e de biodigestor, até a dose 8 Mg ha-1, assim como o calcário na dose 2 Mg ha-1, não trazem problemas de disponibilidade ao ambiente, com relação aos metais pesados Cd, Cr, Hg, Pb, Ni e As, quando aplicados sobre a superfície em Latossolo Vermelho distrófico, no sistema plantio direto. A fitodisponibilidade de metais pesados às culturas da soja e aveia-preta foi nula, quando foram aplicadas doses de até 8 Mg ha-1 de lodo de esgoto, escória e lama cal sobre a superfície do solo, no sistema plantio direto.The objective of this work was to evaluate the soil chemical attributes and exchange of cadmium (Cd, chromium (Cr, nickel (Ni, mercury (Hg, lead (Pb and arsenic (As by DTPA extractor in an Oxisol with surface application of flue dust, aqueous lime, sewage sludge in rates of zero (control, 2, 4 and 8 Mg ha-1 and one additional treatment of dolomitic limestone at 2 Mg ha-1. The experiment was carried out in a randomized blocks design under field conditions, in a no-tillage system in 2003 and 2004. The surface applications of flue dust, aqueous lime and sewage sludge centrifuge and biodigestor at 8 Mg ha-1, as well as the application of limestone at 2 Mg ha-1, cause no problems of exchange to the environment, related to the heavy metals Cd, Cr, Hg, Pb, Ni

  7. DISERTACIÓN SOBRE JUSTICIA Y EQUIDAD

    Directory of Open Access Journals (Sweden)

    Sayuri P. Tamura M.

    2001-01-01

    Full Text Available «Disertación sobre equidad y justicia» es básicamente una respuesta a una inquietud en particular que yo tenía sobre las distintas posiciones que existen sobre estos dos temas y cómo definir cuál es la más acertada. Hice una descripción del punto de vista de Amartya Sen –la violación de los derechos sobre la propiedad privada es justificable si evitan las hambrunas2– frente al de Robert Nozick –la propiedad privada es un derecho fundamental y como tal debe ser respetado3–, sin embargo, aunque ambos enfoques son totalmente contrarios tienen mucho sentido, por lo cual es bastante difícil decidirse por uno en particular. Fue de esta forma, enfrentando sus opiniones, que yo logré desarrollar una posición frente a estas dos perspectivas, y así dar mi opinión al DISERTACIÓN SOBRE JUSTICIA Y EQUIDAD SAYURI P. TAMURA M. Estudiante de Economía y Negocios Internacionales de la Universidad ICESI. respecto. Al final, llegué a una conclusión, que aunque no es la más original y tampoco es la única, tiene mucho sentido y seguramente de ser posible, la situación del país podría cambiar para bien.

  8. Pé diabético: orientações e conhecimento sobre cuidados preventivos

    Directory of Open Access Journals (Sweden)

    Marcia Regina Cubas

    Full Text Available INTRODUÇÃO: O pé diabético é considerado uma complicação do Diabete mellitus e a maior causa de amputações de membros inferiores. Para evitar seu aparecimento são necessárias orientações de medidas preventivas e autocuidado do portador. OBJETIVOS: Verificar o conhecimento dos usuários do programa de diabetes acerca de cuidados preventivos ao pé diabético, identificar as orientações que o paciente recebe quanto à prevenção, e observar a aderência aos procedimentos de autocuidado preventivos. MATERIAIS E MÉTODOS: Pesquisa exploratória de campo, envolvendo 40 diabéticos do tipo 2 e cinco enfermeiros. Foi realizado exame físico dos pés dos diabéticos e uma entrevista estruturada com os enfermeiros. Os dados foram organizados e analisados por estatística descritiva. RESULTADOS E DISCUSSÃO: No exame físico verificaram-se grau de mobilidade comprometido em 52,5% dos participantes; uso inadequado de calçados em 85%; retirada de cutículas em 62,5%. Não houve diferenças significativas na perfusão entre os pés direito e esquerdo, entretanto houve presença de micoses e rachaduras. Pontos de alta pressão apresentaram menores sensibilidades. As orientações fornecidas pelos enfermeiros são variáveis, todos afirmam orientar sobre o uso de calçados e corte de unhas; entretanto, não se verifica adesão a esses itens e faltam orientações importantes como o exame diário dos pés. CONCLUSÃO: Os itens com menor adesão são os mais simples e passíveis de correção. Fazem-se necessários adequada avaliação e acompanhamento individual levando em consideração o grau de conhecimento e a facilidade para processar as informações. Uma ação multiprofissional poderia potencializar as orientações e aumentar a aderência às mesmas.

  9. Eruption dynamics and explosive-effusive transitions during the 1400 cal BP eruption of Opala volcano, Kamchatka, Russia

    Science.gov (United States)

    Andrews, Benjamin J.; Dufek, Josef; Ponomareva, Vera

    2018-05-01

    Deposits and pumice from the 1400 cal BP eruption of Opala volcano record activity that occurred at the explosive-effusive transition, resulting in intermittent, or stop-start, behavior, where explosive activity resumed following a pause. The eruption deposited distinctive, biotite-bearing rhyolite tephra across much of Kamchatka, and its stratigraphy consists of a lithic-rich pumice fall, overlain by pumice falls and pyroclastic density deposits, with the proportion of the latter increasing with height. This sequence repeats such that the middle of the total deposit is marked by a lithic-rich fall with abundant obsidian clasts. Notably, the eruptive pumice are poorly vesiculated, with vesicle textures that record fragmentation of a partially collapsed magmatic foam. The eruption vent, Baranii Amphitheater is filled with obsidian lavas of the same composition as the rhyolite tephra. Based upon the stratigraphic and compositional relations, we divide the eruption into four phases. Phase I initiated with eruption of a lithic-rich pumice fall, followed by eruption of Plinian falls and pyroclastic density currents. During Phase II, the eruption paused for at least 5-6 h; in this time, microlites nucleated and began to grow in the magma. Phase III essentially repeated the Phase I sequence. Obsidian lavas were emplaced during Phase IV. The pumice textures suggest that the magma ascended very near the threshold decompression rate for the transition between explosive (fast) and effusive (slow) behavior. The pause during Phase II likely occurred as decompression slowed enough for the magma to develop sufficient permeability for gas to escape resulting in collapse of the magmatic foam, stopping the eruption and temporarily sealing the conduit. After about 5-6 h, eruption resumed with, once again, magma decompressing very near the explosive-effusive transition. Phase III ended when the decompression rate slowed and lava dome emplacement began. Distributions of pumice and

  10. Structural simulation of natural zeolites; Simulacion estructural de zeolitas naturales

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez P, E.; Carrera G, L.M. [Instituto Nacional de Investigaciones Nucleares, A.P. 18-1027, 11801 Mexico D.F. (Mexico)

    1997-07-01

    The application of X-ray diffraction (XRD) in the study of crystalline structures of the natural and modified zeolites allows the identification, lattice parameter determination and the crystallinity grade of the sample of interest. Until two decades ago, simulation methods of X-ray diffraction patterns were developed with which was possible to do reliable determinations of their crystalline structure. In this work it is presented the first stage of the crystalline structure simulation of zeolitic material from Etla, Oaxaca which has been studied for using it in the steam production industry and purification of industrial water. So that the natural material was modified for increasing its sodium contents and this material in its turn was put in contact with aqueous solutions of Na, Mg and Ca carbonates. All the simulations were done with the Lazy-Pulverix method. The considered phase was clinoptilolite. It was done the comparison with three clinoptilolite reported in the literature. (Author)

  11. Gerenciando equipes de design interna e externa no processo de desenvolvimento de produtos: caso de duas empresas calçadistas do sul do Brasil.

    Directory of Open Access Journals (Sweden)

    Andréa Capra

    2012-12-01

    Full Text Available Esse artigo trata da inserção do design no processo de desenvolvimento de produtos em duas empresas da indústria calçadista da região do Vale do Paranhana, no Rio Grande do Sul. Essas empresas podem trabalhar com diferentes tipos de equipes, interna, externa ou mista e, entender as vantagens e desvantagens de cada tipo de equipe é fundamental ao determinar a melhor opção para a empresa. Porém, pouco tem-se estudado buscando essa relação entre equipes de design e desenvolvimento de produtos. Nesse sentido, o objetivo do estudo foi analisar o gerenciamento de equipes de design, interna e externa, no processo de desenvolvimento de produtos de empresas da indústria calçadista. Para isso, um estudo de caso foi realizado através da análise do caso de uma empresa que trabalhava com os dois tipos de equipes. Com a realização desta pesquisa, foi possível estudar a forma de atuação e gerenciamento das equipes interna e externa de design no processo de desenvolvimento de produtos. Os resultados indicam que diferenças nas formas de atuação e gerenciamento de cada equipe estão relacionados com a autonomia decisória conferida para equipe no início do desenvolvimento de novos projetos.

  12. Metallurgical production from North-east of the Iberian Peninsula during III millennium cal. BC: the Bauma del Serrat del Pont (Tortellá, Girona workshop

    Directory of Open Access Journals (Sweden)

    Alcalde, Gabriel

    1998-06-01

    Full Text Available We examine the third millennium cal. BC levels from the small rockshelter of Bauma del Serrat del Pont. The site was settled by a small group, building a perishable structure except in the II. 5 level. Some evidence suggests a seasonal occupation of the site. Multidisciplinary research shows a broad spectrum of local resources involved in the dairy life of this people, including those related to metallurgical activity. We find very old tin alloys, plain or bell beaker decorated pot-furnaces (used to smelt copper ores and clay tuyeres.

    Se presentan los resultados de la excavación en los niveles del III milenio cal. AC del pequeño abrigo rocoso de la Bauma del Serrat del Pont. El yacimiento fue ocupado por un grupo pequeño que organizó el espacio interno con una estructura de material perecedero, excepto en el nivel II.5. Algunos datos indican que las ocupaciones pudieron tener un carácter estacional. Los estudios multidisciplinares reconstruyen un aprovechamiento diversificado de recursos locales, entre los que se integran los dedicados a las tareas metalúrgicas. Se documentan aleaciones intencionadas de bronce de gran antigüedad, el empleo de vasijas horno con o sin decoración campaniforme, y toberas de arcilla.

  13. Os novos territórios da produção e do trabalho: a indústria de calçados no Ceará

    Directory of Open Access Journals (Sweden)

    Jacob Carlos Lima

    Full Text Available Este artigo objetiva analisar a relocalização industrial do setor calçadista para o Nordeste a partir da década de 1990, bem como o perfil dos "novos" contingentes de trabalhadores decorrentes desse processo. A quase inexistência de um mercado de trabalho formal anterior torna o emprego fabril nesses novos territórios atrativo para trabalhadores mais escolarizados. Para as empresas, a atração encontra-se nos incentivos fiscais, no baixo custo da força de trabalho e na baixa mobilização desses contingentes de trabalhadores. O recorte empírico é o Ceará, que se tornou, com a política de interiorização industrial, o terceiro produtor de calçados no País, com unidades fabris distribuídas de forma desconcentrada pelo estado. A pesquisa constou de: dados secundários obtidos em associações e sindicatos patronais nacionais e em órgãos empresariais e governamentais; entrevistas com dirigentes sindicais de quatro cidades; e aplicação de questionário a 197 trabalhadores de seis fábricas - oriundas do Sul e Sudeste - localizadas em diferentes regiões do estado.

  14. Redução do impacto ambiental: uma abordagem no setor de modelagem em uma empresa calçadista

    Directory of Open Access Journals (Sweden)

    carlos Augusto Nascimento

    2016-12-01

    Full Text Available Este artigo apresenta os resultados de uma pesquisa quali-quantitativa de caráter exploratório e de natureza aplicada, realizada no setor de modelagem de uma empresa calçadista, com a finalidade de implantar um novo fluxo processual para gestão de resíduos e de materiais sobressalentes. Para a elaboração do projeto empregou-se metodologia DMAIC, ferramentas da qualidade, ecodesign e a ferramenta 3Rs, visando à redução da variação do processo de maneira a incorporar ações sustentáveis, que permitam a diminuição do custo industrial. Como resultado, obteve-se a redução de passivo ambiental do estoque em processo, da baixa eficiência produtiva, das perdas energéticas e maior desempenho econômico-financeiro, por meio da fabricação de calçados, com o uso de resíduos e materiais sobressalentes e de novo material reciclável para a utilização em gabaritos produtivos.

  15. The beginning of metallurgy in the southern Levant: a late 6th millennium CalBC copper awl from Tel Tsaf, Israel.

    Science.gov (United States)

    Garfinkel, Yosef; Klimscha, Florian; Shalev, Sariel; Rosenberg, Danny

    2014-01-01

    The beginning of metallurgy in the ancient Near East attracts much attention. The southern Levant, with the rich assemblage of copper artifacts from the Nahal Mishmar cave and the unique gold rings of the Nahal Qanah cave, is regarded as a main center of early metallurgy during the second half of the 5th millennium CalBC. However, a recently discovered copper awl from a Middle Chalcolithic burial at Tel Tsaf, Jordan Valley, Israel, suggests that cast metal technology was introduced to the region as early as the late 6th millennium CalBC. This paper examines the chemical composition of this item and reviews its context. The results indicate that it was exported from a distant source, probably in the Caucasus, and that the location where it was found is indicative of the social status of the buried individual. This rare finding indicates that metallurgy was first diffused [corrected] to the southern Levant through exchange networks and only centuries later involved local productionThis copper awl, the earliest metal artifact found in the southern Levant, indicates that the elaborate Late Chalcolithic metallurgy developed from a more ancient tradition.

  16. Impuesto sobre las transacciones financieras: Justicia fiscal

    OpenAIRE

    Mariño, José Ramón

    2016-01-01

    7 p.[Variante del título de la publicación : Boletín electrónico de Hegoa] [ESP] El Impuesto sobre las transacciones financieras se basa en establecer un gravamen sobre las operaciones financieras con el fin de estabilizar los mercados como consecuencia de la disminución de la especulación a corto plazo. Además es una fuente de financiación de inversiones socialmente deseables. Diez países de la Unión Europea han expresado su deseo de introducir el ITF, sin emba...

  17. Durabilidade de tijolos solo-cal incorporados com resíduos de demolição da construção civil Durability of soil-lime bricks embedded with demolition construction residues

    OpenAIRE

    Suélen Silva Figueiredo; Cibelle Guimarães Silva; Gelmires A. Neves

    2011-01-01

    A incorporação dos resíduos de demolição da construção civil (RD) em tijolos solo-cal, substituindo parte do aglomerante, torna-se possível devido às propriedades cimentantes que esses resíduos podem apresentar quando finamente moídos. Essa pesquisa objetiva avaliar a durabilidade de tijolos solo-cal incorporados com resíduos de demolição da construção civil. Para o desenvolvimento dessa pesquisa foram confeccionados corpos-de-prova utilizando o traço 1:10 em massa, em proporção de cal:solo e...

  18. Adequação de calçadas e travessias às condições mínimas de acessibilidade : um procedimento para estimativa de custos de serviços e obras

    OpenAIRE

    Pablo José Martinelli Guerreiro

    2008-01-01

    Esta dissertação apresenta um procedimento para determinação de custos de adequação de calçadas e travessias urbanas através da quantificação dos custos dos serviços necessários a realização das obras de reparos ou da reconstrução total de um trecho de calçada, além da adequação da travessia. O levantamento dos serviços necessários foi feito utilizando-se como padrão de projeto as especificações constantes do manual do projeto Calçada Cidadã da Prefeitura Municipal de Vitória ES. A avaliação ...

  19. Deep water ventilation in the northwestern North Pacific during the last deglaciation and the early Holocene (15-5 cal. kyr B.P.) based on AMS 14C dating

    International Nuclear Information System (INIS)

    Minoshima, Kayo; Kawahata, Hodaka; Irino, Tomohisa; Ikehara, Ken; Aoki, Kaori; Uchida, Masao; Yoneda, Minoru; Shibata, Yasuyuki

    2007-01-01

    The difference between benthic and planktonic foraminifera radiocarbon (B-P 14 C) age differences in core PC6 (40 o 23.89' N, 143 o 29.87' E) retrieved from the northwestern North Pacific provide a clue to the reconstruction of deep water circulation during the last deglaciation and the early Holocene (15-5 cal. kyr B.P.). The observed B-P 14 C age differences ranged from 1030 to 1630 years, which are comparable to the present-day apparent ventilation age. It suggested that the ventilation generally remained similar during 15-5 cal. kyr B.P. However, B-P 14 C age difference slightly reduced at 14.6 cal. kyr B.P., indicating that the higher ventilation temporality could have occurred in the northwestern North Pacific (∼2200 m water depth)

  20. Chronostratigraphy in karst records from the Epipaleolithic to the Mid/Early Neolithic (c. 13.0-6.0 cal ka BP) in the Catalan Coastal Ranges of NE Iberia: environmental changes, sedimentary processes and human activity

    Science.gov (United States)

    Bergadà, M. Mercè; Cervelló, Josep M.; Edo, Manel; Cebrià, Artur; Oms, F. Xavier; Martínez, Pablo; Antolín, Ferran; Morales, Juan Ignacio; Pedro, Mireia

    2018-03-01

    The stratigraphic, sedimentary and palaeoenvironmental features reflected in cavities in the Catalan Coastal Ranges of NE Iberia (Can Sadurní and Guineu caves) characterize the periods of pronounced climatic and human complexity that occurred c. 13.0-6.0 cal ka BP. This includes the stages of the Younger Dryas and Mid/Early Holocene, the latter being one of the periods of so-called Rapid Climatic Changes (RCCs). These caves, like others in Mediterranean contexts, are the result of an old duct originating in the saturated zone of the karst system and open to the outside; recording a succession of different detrital and anthropic episodes of the Epipaleolithic, Mesolithic and Neolithic communities. From this study it can be seen that paleoclimatic events do not always present clear signals in the karst records, especially c. 12.7-7.4 cal ka BP, corresponding to the Epipaleolithic and Mesolithic. It is characterized by a stratigraphic discontinuity in which there are phases with predominantly detrital sedimentation alternating with hiatus intervals. Detrital sedimentation formed by fine material colluvium with gravitational movements or solifluction processes in fresh and humid conditions. It appears in the following chronological intervals: 12.7-12.2 cal ka BP, 11.5/11.1-10.7/10.4 cal ka BP and 8.2-8.0 cal ka BP (less humid). Hiatus phases are represented in the rest of the sequence up to c. 7.4 cal ka BP. From the sedimentary point of view these stages of hiatus are indicative of phases of stability or lack of episodes with seasonal contrasts; a fact that would cause interruptions to detrital deposition in the interior of the caves. In contrast, in the period c. 7.4 to 6.0 cal ka BP, attributed to the Middle and Early Neolithic, there is a certain stratigraphic continuity. From the sedimentary point of view it is distinguished by a variability of processes that responds to accumulative episodes of short duration characteristic of morphogenesis of the slopes in an

  1. Efecto de la Adición de Minerales en el Agua o Alimento sobre la Frecuencia Cardiaca, en Pollos de Engorde Sometidos a Estrés Calórico Crónico y Agudo

    DEFF Research Database (Denmark)

    Rojas, Jesus; Steffensen, Simon Gabriel Comerma; Chacon, Tony

    2008-01-01

    The effects of mineral addition in feed or water on performance parameters and heart rate (HR) were evaluated in broilers at 28-35 d and 36 d under both chronic heat stress (CHS) and acute heat stress (AHS) in laboratory conditions. Onehundred ninety two broilers were used, distributed in 6 cages...

  2. Desproporción de etilbenceno en condiciones sub y supercríticas sobre materiales zeolíticos

    OpenAIRE

    Gómez Jiménez, Pilar

    2010-01-01

    El presente trabajo se encuadra en un área de investigación en la que confluyen tres líneas que se vienen desarrollando en el Departamento de Ingeniería Química de la Facultad de Ciencias Químicas de la Universidad Complutense de Madrid relativas a la síntesis, modificación y aplicación de zeolitas y zeotipos; el desarrollo de procesos catalíticos, y las aplicaciones de la tecnología supercrítica. Los compuestos aromáticos presentan una gran variedad de aplicaciones para la industria química ...

  3. La cerámica en Cantabria desde su aparición (5000 cal BC hasta el final de la Prehistoria: técnicas de manufactura y características morfo-decorativas

    Directory of Open Access Journals (Sweden)

    CUBAS, M., BOLADO DEL CASTILLO, R., PEREDA ROSALES, E.M. y FERNÁNDEZ VEGA, P.A.

    2013-01-01

    En este artículo se presenta una visión diacrónica de la cerámica en la actual provincia de Cantabria desde su aparición (V milenio cal BC hasta el momento en el que finaliza lo que tradicionalmente se ha considerado como Prehistoria (siglo I cal BC. Se señalan las características tecnológicas, morfológicas y decorativas, resaltando aquellos rasgos comunes de los conjuntos cerámicos documentados durante este intervalo cronológico.

  4. A inserção do design e da gestão de design : estudo de caso em uma indústria calçadista gaúcha

    OpenAIRE

    Galina, Andréa Capra; Bernardes, Mauricio Moreira e Silva

    2012-01-01

    O calçado gaúcho está perdendo mercado exportador considerando-se o número de pares exportados, porém esse segmento pertence ao estado brasileiro com maior faturamento gerado da exportação. Nesse contexto, o design assume um importante papel na gestão, promovendo a integração entre todos os setores, agindo em nível estratégico. Diante disso, este artigo, ao propor um estudo de caso baseado no modelo praticado por uma empresa calçadista do Rio Grande do Sul, busca entender como ocorre nesse es...

  5. A gravidade da cárie está associada à desnutrição proteico-calórica em pré-escolares?

    Directory of Open Access Journals (Sweden)

    Cecilia Claudia Costa Ribeiro

    2014-03-01

    Full Text Available Avaliou-se se gravidade da cárie está associada à desnutrição proteico-calórica em pré-escolares. Foi realizado um estudo seccional aninhado a uma coorte retrospectiva de 625 crianças entre 24 -71 meses, em São Luís, Maranhão. Um modelo hierarquizado foi avaliado em cinco níveis: 1º Variáveis socioeconômicas (classe econômica, escolaridade materna, cor da pele; 2º Variáveis de acesso; 3º Baixo peso ao nascer e amamentação exclusiva; 4º Peso para altura aos 12 meses e 5º Gravidade da cárie e níveis de albumina (Alb. O desfecho foi desnutrição proteico-calórica (z escore altura para idade < -2. A prevalência do desfecho foi de 5,0 %, e da cárie foi de 32%. As variáveis do primeiro nível não foram associadas ao desfecho, porém a classe econômica foi mantida até o modelo final. As variáveis do segundo e do terceiro níveis não foram significativas. No quarto nível, peso para altura aos 12 meses não foi significativo, porém foi mantido até o modelo final. No último nível, os níveis de Alb não foram associados ao desfecho e a gravidade da doença cárie foi positivamente associada com desnutrição proteico-calórica em pré-escolares. A associação da gravidade da cárie com déficit antropométrico sinaliza que a saúde bucal deva ser parte importante nas políticas públicas de atenção à infância.

  6. Studies for the electro-magnetic calorimeter {\\em SplitCal} for the SHiP experiment at CERN with shower direction reconstruction capability

    CERN Document Server

    2018-01-01

    This paper describes the basic ideas and the first simulation results of a new electro-magnetic calorimeter concept, named {\\it SplitCal}, aimed at optimising the measurement of photon direction in fixed-target experiment configuration, with high photon detection efficiency. This calorimeter was designed for the invariant mass reconstruction of axion-like particles decaying into two photons in the mass range 200~MeV to 1~GeV for the proposed proton beam dump experiment SHiP at CERN. Preliminary results indicate that angular resolutions better than obtained by past experiments can be achieved with this design. An implementation of this concept with real technologies is under study.

  7. Pesquisa de adocantes não calóricos sintéticos em adoçante natural de Stevia rebaudiana (Bert. Bertoni

    Directory of Open Access Journals (Sweden)

    Mariangela T. Auricchio

    Full Text Available Foram analisadas 19 amostras de "Adoçantes Natu rais de Stevia", tendo por objetivo verificar-se a presença de outros adoçantes nao calóricos sintéticos que não são declarados no rótulo do produto. Constatou-se que em 18 amostras,além de componentes do extrato de Stevia reubadiana (Bert. Bertoni, a sacarina estava presente e que só uma delas declarava tal fato no rótulo. Em três dessas amostras foi encontrado tanbém aspartame e em uma, ciclamato. Fimalmente, em uma amostra não foi encontrado nenhum componente do extrato de Stevia rebaudiana (Bert. Bertoni, mas sim uma mistuna de manitol e aspartame.

  8. Studies for the electro-magnetic calorimeter SplitCal for the SHiP experiment at CERN with shower direction reconstruction capability

    Science.gov (United States)

    Bonivento, Walter M.

    2018-02-01

    This paper describes the basic ideas and the first simulation results of a new electro-magnetic calorimeter concept, named SplitCal, aimed at optimising the measurement of photon direction in fixed-target experiment configuration, with high photon detection efficiency. This calorimeter was designed for the invariant mass reconstruction of axion-like particles decaying into two photons in the mass range 200 MeV to 1 GeV for the proposed proton beam dump experiment SHiP at CERN. Preliminary results indicate that angular resolutions better than obtained by past experiments can be achieved with this design. An implementation of this concept with real technologies is under study.

  9. Quem Cala, Consente? Uma Leitura de “Calúnia” e de The Handmaid’s Tale sob a Perspectiva do Silêncio

    Directory of Open Access Journals (Sweden)

    Relines Rufino de Abreu

    2016-07-01

    Full Text Available Este artigo visa perscrutar o silêncio nas obras The Handmaid’s Tale (1985, de Margaret Atwood e “Calúnia” (1981, de Lillian Hellman, como elemento promotor de significação, principalmente no que se refere aos papéis sociais representados pelas personagens. Através das vozes sociais do discurso, observase a implantação da política do silêncio por duas vias: o silêncio local e o silêncio constitutivo. Os textos aqui analisados mostram a intersecção dessas duas formas do silêncio ao mesmo tempo em que apresentam diferentes métodos de aplicação dessa política.

  10. EVALUACIÓN EXPERIMENTAL DE UNIDADES SÍLICO-CALCÁREAS A PARTIR DE ESCORIA DE ALTO HORNO Y CAL HIDRÁULICA PARA MAMPOSTERÍA

    Directory of Open Access Journals (Sweden)

    NILSON ARIEL LEÓN

    2009-01-01

    Full Text Available El presente artículo estudia la posibilidad de fabricar elementos sílico-calcáreos para mampostería a partir de dos tipos de materias primas como son las escorias de Alto Horno y las cales hidráulicas. En el presente trabajo se evaluaron algunas propiedades físicas de las probetas fabricadas con los anteriores materiales con respecto a la Norma Técnica Colombiana, para 5 tipos de mezclas que varían entre 10 y 50 % de cal. Los resultados mostraron que es factible la fabricación de ladrillos sílico-calcáreos para mampostería que cumplen con la NTC 922.

  11. Do nistagmo às provas calóricas com ar e com água From nystagmus to the air and water caloric tests

    Directory of Open Access Journals (Sweden)

    Anna Carolina Marques Perrella de Barros

    2012-08-01

    Full Text Available A prova calórica é uma importante ferramenta na avaliação da função labiríntica. OBJETIVO: Comparar o nistagmo pós-calórico da prova com ar a 50ºC e 24ºC com o da prova com água a 44ºC e 30ºC. Desenho científico: Estudo clínico cruzado randomizado. MATERIAL E MÉTODO: 40 indivíduos hígidos submetidos à avaliação da função vestibular incluindo a prova calórica com ar a 50ºC e 24ºC e com água a 44ºC e 30ºC. RESULTADOS: À comparação das provas com ar e com água, não houve diferença significante entre os valores da velocidade angular da componente lenta (VACL do nistagmo pós-calórico quanto à ordem de realização das estimulações, entre as orelhas e entre os valores de predomínio labiríntico e de preponderância direcional. Os valores da VACL foram maiores nas estimulações com água (p = 0,008; p The caloric test is an important tool for the assessment of labyrinthine function. OBJECTIVE: To compare the nystagmus response in the caloric tests with air at 50ºC and 24ºC and with water at 44ºC and 30ºC. Study Design: Randomized crossover clinical trial. MATERIALS AND METHODS: 40 healthy individuals were submitted to a neurotological evaluation, including caloric tests with air at 50ºC and 24ºC and water at 44ºC and 30ºC. RESULTS: Comparing the air and water caloric tests, there were no significant differences among the post-caloric nystagmus slow-phase velocity in relation to the stimulation order, between ears and between the values of unilateral weakness and directional preponderance. The slow-phase velocity values were higher with water (p = 0.008, p < 0.001, and cold stimulation produced stronger responses (p < 0.001. CONCLUSION: Comparing 50ºC and 24ºC air caloric test and 44ºC and 30ºC water caloric test, we observed similar slow-phase velocity values for both ears, higher responses in the cold temperature and in the test with water, and similar results of unilateral weakness or directional

  12. Environmental behavior of soils and mixtures of soil-whitewash mud Comportamento ambiental de solos e misturas solo lama-de-cal

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    Carlos Cardoso Machado

    2004-06-01

    Full Text Available The present study sought to observe the behavior of soils in natural state and in mixtures, in different ratios, with the industrial solid residue called whitewash mud. The work was conducted with samples of typical soils from the region of Alagoinhas, Bahia-Brazil. Wet chemical analysis and atomic absorption spectrophotometry were used in order to obtain the classification of the industrial solid residue. Solubilization and leaching tests were performed and X-ray diffraction and electron microscopy techniques were carried out. The results showed that the whitewash mud was classified as non-inert, but with great capacity of heavy metal retention largely owed to the kaolinite and goethite presence in the clay fraction of the soils, making it difficult to have heavy metals readily available for exchange.O presente estudo buscou observar o comportamento de solos em seu estado natural e em misturas, em diferentes teores, com o resíduo sólido industrial denominado lama-de-cal. A pesquisa foi conduzida com amostras de solos típicas da região de Alagoinhas, Bahia-Brasil. A análise química por via úmida e espectrofotometria de absorção atômica foram usadas para obter a classificação do resíduo sólido industrial. Testes de solubilização, lixiviação, analise de raios X e microscopia eletrônica de varredura foram executados. Os resultados indicaram que a lama-de-cal não é inerte, mas com grande capacidade de retenção de metais pesados, em grande parte devido à presença de caulinita e goethita na fração argila dos solos.

  13. Investigación educativa reciente sobre México

    OpenAIRE

    Núñez-DelaPeña, Francisco J.; Mejía-Arauz, Rebeca

    1985-01-01

    Se presenta una muestra de la investigación educativa sobre México: 22 disertaciones doctorales aceptadas en universidades norteamericanas entre 1982 y 1984. Dos estudios conciernen a la teoría del capital humano; cinco tratan diversos aspectos relacionados con la administración educativa; uno es sobre la televisión; otro sobre las habilidades fonéticas de los niños; uno más es sobre profesionalización de los médicos; cuatro tocan aspectos de política educativa; tres tratan sobre los maestros...

  14. INFLUENCIA DE LAS ESTRATEGIAS DE INGRESOS Y LAS POLITICAS PÚBLICAS SOBRE LA SEGURIDAD ALIMENTARIA EN COMUNIDADES RURALES MAYAS DEL NORTE DE CAMPECHE, MÉXICO

    Directory of Open Access Journals (Sweden)

    Lucio Pat Fernández

    2010-10-01

    Full Text Available En este artículo se examina el efecto de las estrategias de ingresos sobre la suficiencia de consumo calórico en grupos domésticos (GD mayas de Campeche, México. El análisis se basó en el enfoque de modos de vida y la información se obtuvo de una encuesta censal de hogares (N=237 en cuatro comunidades. Los resultados revelan que todos los GD tienen una estrategia de ingreso diversificada con una orientación claramente definida. El índice de seguridad calórica es diferente entre conglomerados de GD y aumenta a medida que se incrementa la proporción del ingreso agrícola en el ingreso total. La estrategia laboral (37.6% y la estrategia agrícola-laboral (42.6% no cubren los requerimientos energéticos de los GD. La estrategia agrícola es la única que satisface las necesidades de consumo calórico de los GD (19.8%. Estos resultados están relacionados con la calidad y extensión de la tierra, la pertenencia a organizaciones productivas, y la política rural vigente. La implementación de una política local diferenciada, la coordinación interinstitucional y la participación ciudadana, podrían contribuir a mejorar la eficacia de las políticas orientadas a erradicar la inseguridad alimentaria.

  15. Correção da acidez e mobilidade de íons em Latossolo com aplicação superficial de escória, lama cal, lodos de esgoto e calcário Liming and ion mobility in an Oxisol under surface application of flue dust, aqueous lime, sewage sludge and limestone

    Directory of Open Access Journals (Sweden)

    Juliano Corulli Corrêa

    2007-09-01

    Full Text Available Com o objetivo de avaliar a correção da acidez, saturação por bases e a mobilidade de nitrato, cálcio e magnésio no perfil de um Latossolo Vermelho distrófico, foi conduzido experimento em condições de campo, em área sob sistema plantio direto, de 2002 a 2005. A possível interferência dos ácidos orgânicos, provenientes da aveia-preta, decorrentes da aplicação superficial de escória de aciaria, lama cal e lodos de esgoto centrifugado e de biodigestor, foram igualmente avaliadas nas doses de 0 (testemunha, 2, 4 e 8 t ha-1 e um tratamento adicional composto pela calagem superficial na dose de 2 t ha-1. A aplicação superficial de doses crescentes de escória de aciaria, lama cal e lodo de esgoto centrifugado permitiu verificar aumento do valor de pH no solo. Esses resíduos e o lodo de esgoto de biodigestor elevaram a saturação por bases e a disponibilidade de nitrato, cálcio e magnésio até a profundidade de 40 cm no solo, com apenas três meses de reação. A pequena quantidade de ácidos orgânicos na parte aérea da aveia-preta não justificou o rápido deslocamento dos nutrientes e da neutralização do solo em subsuperfície. Os resíduos escória de aciaria, lama cal e lodo de esgoto centrifugado podem ser utilizados como corretivos da acidez e aplicados sobre a superfície do solo no sistema de plantio direto.The experiment was carried out under field conditions in a no-tillage system from 2002 to 2005, aiming to evaluate liming, base saturation and nitrate, calcium and magnesium mobility in a dystrophic Clay Rhodic Hapludox soil. The possible interference of organic acid catering of black oat through surface application of flue dust, aqueous lime and sewage sludge from a centrifuge and a biodigestor were also evaluated at rates of zero (control, 2, 4 and 8 t ha-1 as well as an additional treatment of dolomitic limestone at the rate of 2 t ha-1. Due to the increasing surface applications of flue dust, aqueous lime and

  16. Influência do substrato e do tamanho da célula de bandejas de poliestireno expandido no desenvolvimento de mudas e produção de calêndula (Calendula officinalis L. Influence of substrate and cell size of expanded polystyrene tray on the development and production of marigold (Calendula officinalis L. seedlings

    Directory of Open Access Journals (Sweden)

    C.K.R Barbosa

    2010-03-01

    Full Text Available A calêndula (Calendula officinalis L. é uma planta medicinal anual de origem Mediterrânica que apresenta propriedades antiinflamatórias, antivirais, antigenotóxicas. A propagação desta planta normalmente é feita por sementes, sendo o uso de bandejas de poliestireno uma forma econômica de produção de mudas. Foram conduzidos dois experimentos com o objetivo de avaliar a interferência de dois tamanhos de célula em bandeja de poliestireno expandido (40 cm³ e 12 cm³ e de dois substratos (solo + esterco bovino curtido e substrato comercial tipo Plantmax para hortaliças® sobre a qualidade de mudas e a produção de calêndula. O delineamento estatístico nos dois experimentos foi em blocos casualizados, dispostos em arranjo fatorial 2 x 2 (dois substratos e dois tamanhos de células com seis repetições. Os tratamentos, referentes aos tamanhos das células foram bandeja com 128 células (40 cm³ de volume e, bandeja com 288 células (12 cm³ de volume. Os substratos utilizados foram solo de cerrado + esterco bovino curtido (1:1 e substrato comercial tipo "Plantmax para hortaliças®". Parte das mudas foi transplantada para avaliação da produção de capítulos. Houve diferenças significativas entre os substratos para as variáveis: matéria seca de parte aérea, matéria seca da raiz e matéria seca total. O uso do substrato formulado com solo de cerrado e esterco bovino proporcionou o melhor desenvolvimento das mudas de calêndula. Contudo, os diferentes tipos de substrato e bandejas de poliestireno não influenciaram significativamente a produção de capítulos das mudas transplantadas.Marigold Calendula (Calendula officinalis L. is an annual medicinal plant of Mediterranean origin which presents anti-inflammatory, antiviral and antigenotoxic properties. This species normally propagates through seeds, and the use of polystyrene trays is an economic way to produce its seedlings. Two experiments were carried out to evaluate the

  17. Índice de Paridad Poder de Compra Nutricional: comparación de los precios calóricos entre dietas habituales y saludables Index of Nutritional Purchasing Power Parity: comparison of caloric costs of a healthy versus an unhealthy diet

    Directory of Open Access Journals (Sweden)

    Alfonso Mendoza Velázquez

    2012-01-01

    Full Text Available OBJETIVO: Validar el Índice de Paridad Poder de Compra Nutricional (Nut3-CiO como un instrumento que permite comparar los precios calóricos de una dieta saludable versus una dieta no saludable entre regiones o ciudades de un país a través del tiempo. MÉTODOS: Se construyeron índices de precios calóricos y se empleó la "ley de un solo precio" para derivar el índice Nut3-CiO. Se obtuvieron tasas de inflación calóricas sobre las que se realizó estadística descriptiva básica. El Nut3-CiO se aplicó a las principales ciudades de México durante el período enero de 1996 a diciembre 2010. RESULTADOS: El comportamiento estadístico del Nut3-CiO reveló que en las ciudades de México los productos de la dieta habitual son más baratos que los productos de la dieta saludable. Se observó un comportamiento cíclico del índice, una correlación alta entre la inflación de la dieta habitual y la inflación de la canasta básica, y una alta persistencia de los precios. CONCLUSIONES: El índice Nut3-CiO permite comparar periódicamente el diferencial de precios de dos tipos de dietas -habituales y saludables- entre las ciudades de un mismo país. Este instrumento podría ayudar a las autoridades de salud a identificar las ciudades en donde resulta más -o menos- fácil para los consumidores acceder a una dieta habitual o saludable en términos de costo. Asimismo, hace posible estimar el porcentaje de ajuste que deberían tener los precios relativos en cada ciudad para alcanzar los niveles de paridad poder de compra nutricional.OBJECTIVE: Develop the Index of Nutritional Purchasing Power Parity (Nut3-CiO as an instrument to compare the caloric costs of a healthy versus an unhealthy diet between regions or cities in a country over time. METHODS: Indices of caloric prices were constructed and the "law of one price" was used to derive the Nut3-CiO index. Caloric inflation rates were obtained using basic descriptive statistics. The Nut3-CiO was

  18. Sobre el plagi acadèmic a Europa. Un enfocament analític basat en quatre estudis

    Directory of Open Access Journals (Sweden)

    Vanja Pupovac

    2008-12-01

    Full Text Available Amb el desenvolupament de les tecnologies de la informació i la comunicació (TIC, el plagi esdevé un problema cada cop més greu en la comunitat acadèmica. Segons els estudis sobre el plagi acadèmic elaborats en universitats de quatre països europeus diferents, l'índex de plagi entre els estudiants és considerablement alt i els estudiants majoritàriament passen per alt o permeten el plagi per la manca de coneixement, la manca de conseqüències o simplement perquè les TIC fan que el plagi sigui fàcil de cometre. Les conclusions dels estudis que es presenten en aquest article indiquen que cal introduir polítiques estrictes contra el plagi a les universitats. Pensem que s'hauria de captar l'atenció del públic sobre el problema del plagi, que s'hauria de debatre en altes esferes i que s'haurien d'aplicar mesures efectives contra el plagi. L'abast del plagi entre estudiants i les seves actituds envers el plagi reben influències de l'entorn cultural i també per l'escenari acadèmic. En comunitats multiculturals, com ara la comunitat europea, és necessari investigar i comparar el comportament acadèmic a diferents països per a establir estàndards equivalents en l'ensenyament arreu d'Europa. Text complet (PDFDossier complet (PDF

  19. Sobre una Rodoficea parasita de Gelidiaceas

    OpenAIRE

    Seoane Camba, Juan Antonio

    1982-01-01

    En este trabajo se hace un estudio de una Rodofícea parásita, encontrada sobre Gelidium cantabricum Seoane-Camba y Gelidium sesquipedale (Clemente) Thuret. Por sus características generales atribuímos esta planta al género Gelidiocolax. descrito por Gardner en 1927 para un parásito de Gelidium pulchrum Gardner de las costas americanas del Pacífico...

  20. Reflexiones sobre el concepto de justicia

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    Víctor C. Pascual Planchuelo

    2005-06-01

    Full Text Available Este ensayo constituye una reflexión sobre el concepto de Justicia. No se centra, como tantos estudios al respecto, en el plano teórico y metafísico, sino que atiende problemas de mayor actualidad: la opinión de los ciudadanos, la postura de los profesionales y otros asuntos controvertidos del ámbito del Derecho.

  1. ESTUDO DO IMPACTO DA INOVAÇÃO TECNOLÓGICA SOBRE O CUSTO DE PRODUÇÃO

    Directory of Open Access Journals (Sweden)

    Dusan Schreiber

    2016-03-01

    Full Text Available Na medida em que se constatou o esgotamento do modelo da estratégia de produção em escala, baseada na fabricação de um reduzido número de itens e volume elevado, vários pesquisadores apontaram a inovação como fonte de diferenciação da atuação das organizações no mercado. No entanto, foram poucos estudos realizados com o objetivo de avaliar a influência do investimento na inovação tecnológica sobre a estrutura de custos de produção, tanto para sua redução como aumento. No presente artigo são apresentados dois casos de indústrias de matrizes para calçados, de pequeno e grande porte, onde se evidenciou o aumento de custos decorrente dos investimentos em inovação tecnológica no segmento econômico onde o custo do produto final é decisivo no processo de tomada de decisão do mercado-alvo. A adoção do processo tradicional, para se adaptar ao contexto, numa das empresas pesquisadas, foi considerada a inovação da estratégia organizacional.

  2. Uso de cal virgem para o controle de Salmonella spp. e Clostridium spp. em camas de aviário Quicklime for controlling Salmonella spp. and Clostridium spp in litter from floor pens of broilers

    Directory of Open Access Journals (Sweden)

    Marcos Antonio Dai Pra

    2009-07-01

    Full Text Available O objetivo deste trabalho foi avaliar a eficácia do uso de cal virgem (CaO para a redução de Salmonella spp. e Clostridium spp. em cama de aviário. Foram aplicados quatro tratamentos: T1- sem adição de cal virgem (controle, T2- aplicação de cal virgem na dose de 300g m-2, T3- aplicação de cal virgem na dose de 600g m-2 e T4- aplicação de cal virgem na dose de 900g m-2. Os valores médios observados para o pH da cama após o 12° dia de aplicação de cal virgem foram 8,95 e 9,91, 10,75 e 11,11 para os tratamentos 1, 2, 3 e 4, respectivamente. O número mais provável Log10 (UFC de Salmonella spp. e Clostridium spp foi reduzido em 82 e 97% com a aplicação de cal na dosagem de 300g m-2 e 100% na dosagem de 600 e 900g m-2, ambos diferindo significativamente em relação ao controle (antes da aplicação da cal. A atividade de água da cama reduziu progressivamente (de 0,2 a 3,82% com a utilização de níveis crescentes de cal. Conclui-se que o uso da cal na cama de aviário, mesmo nas doses mais baixas, reduz o número mais provável de Salmonella e Clostridium ssp.This study aimed to evaluate the efficacy of quicklime (CaO for reducing Salmonella and Clostridium spp. population in used litter from floor pens of broilers. Four treatments were tested: (T1 control (without quicklime; (T2 300g quicklime m-2; (T3 600g quicklime m-2; and (T4 900g quicklime m-2. The following average pH values were observed 12 days after adding quicklime: 8.95, 9.91, 10.75 and 11.11 for treatments 1, 2, 3 and 4, respectively. An 82 and 97% reduction in the most probable number Log10 (CFU of Salmonella and Clostridium spp, respectively, was observed when 300g m-2 of quicklime was added to the used litter from floor pens of broilers. Additionally, a 100% reduction was obtained when both 600 and 900g m-2 of quicklime were added, differing significantly from control (before adding quicklime. A progressive reduction in water activity (from 0.2 to 3.82% was

  3. First observation of the decay $\\bar{B}^0_s \\to D^0 K^{*0}$ and a measurement of the ratio of branching fractions $\\frac{{\\cal B}(\\bar{B}^0_s \\to D^0 K^{*0})}{{\\cal B}(\\bar{B}^0 \\to D^0 \\rho^0)}$

    CERN Document Server

    Aaij, R; Adeva, B; Adinolfi, M; Adrover, C; Affolder, A; Ajaltouni, Z; Albrecht, J; Alessio, F; Alexander, M; Alkhazov, G; Alvarez Cartelle, P; Alves, A A; Amato, S; Amhis, Y; Anderson, J; Appleby, R B; Aquines Gutierrez, O; Archilli, F; Arrabito, L; Artamonov, A; Artuso, M; Aslanides, E; Auriemma, G; Bachmann, S; Back, J J; Bailey, D S; Balagura, V; Baldini, W; Barlow, R J; Barschel, C; Barsuk, S; Barter, W; Bates, A; Bauer, C; Bauer, Th; Bay, A; Bediaga, I; Belous, K; Belyaev, I; Ben-Haim, E; Benayoun, M; Bencivenni, G; Benson, S; Benton, J; Bernet, R; Bettler, M-O; van Beuzekom, M; Bien, A; Bifani, S; Bizzeti, A; Bjørnstad, P M; Blake, T; Blanc, F; Blanks, C; Blouw, J; Blusk, S; Bobrov, A; Bocci, V; Bondar, A; Bondar, N; Bonivento, W; Borghi, S; Borgia, A; Bowcock, T J V; Bozzi, C; Brambach, T; van den Brand, J; Bressieux, J; Brett, D; Brisbane, S; Britsch, M; Britton, T; Brook, N H; Brown, H; Büchler-Germann, A; Burducea, I; Bursche, A; Buytaert, J; Cadeddu, S; Caicedo Carvajal, J M; Callot, O; Calvi, M; Calvo Gomez, M; Camboni, A; Campana, P; Carbone, A; Carboni, G; Cardinale, R; Cardini, A; Carson, L; Carvalho Akiba, K; Casse, G; Cattaneo, M; Charles, M; Charpentier, Ph; Chiapolini, N; Ciba, K; Cid Vidal, X; Ciezarek, G; Clarke, P E L; Clemencic, M; Cliff, H V; Closier, J; Coca, C; Coco, V; Cogan, J; Collins, P; Comerma-Montells, A; Constantin, F; Conti, G; Contu, A; Cook, A; Coombes, M; Corti, G; Cowan, G A; Currie, R; D'Almagne, B; D'Ambrosio, C; David, P; De Bonis, I; De Capua, S; De Cian, M; De Lorenzi, F; De Miranda, J M; De Paula, L; De Simone, P; Decamp, D; Deckenhoff, M; Degaudenzi, H; Deissenroth, M; Del Buono, L; Deplano, C; Deschamps, O; Dettori, F; Dickens, J; Dijkstra, H; Diniz Batista, P; Domingo Bonal, F; Donleavy, S; Dosil Suárez, A; Dossett, D; Dovbnya, A; Dupertuis, F; Dzhelyadin, R; Easo, S; Egede, U; Egorychev, V; Eidelman, S; van Eijk, D; Eisele, F; Eisenhardt, S; Ekelhof, R; Eklund, L; Elsasser, Ch; d'Enterria, D G; Esperante Pereira, D; Estéve, L; Falabella, A; Fanchini, E; Färber, C; Fardell, G; Farinelli, C; Farry, S; Fave, V; Fernandez Albor, V; Ferro-Luzzi, M; Filippov, S; Fitzpatrick, C; Fontana, M; Fontanelli, F; Forty, R; Frank, M; Frei, C; Frosini, M; Furcas, S; Gallas Torreira, A; Galli, D; Gandelman, M; Gandini, P; Gao, Y; Garnier, J-C; Garofoli, J; Garra Tico, J; Garrido, L; Gascon, D; Gaspar, C; Gauvin, N; Gersabeck, M; Gershon, T; Ghez, Ph; Gibson, V; Gligorov, V V; Göbel, C; Golubkov, D; Golutvin, A; Gomes, A; Gordon, H; Grabalosa Gándara, M; Graciani Diaz, R; Granado Cardoso, L A; Graugés, E; Graziani, G; Grecu, A; Greening, E; Gregson, S; Gui, B; Gushchin, E; Guz, Yu; Gys, T; Haefeli, G; Haen, C; Haines, S C; Hampson, T; Hansmann-Menzemer, S; Harji, R; Harnew, N; Harrison, J; Harrison, P F; He, J; Heijne, V; Hennessy, K; Henrard, P; Hernando Morata, J A; van Herwijnen, E; Hicks, E; Hofmann, W; Holubyev, K; Hopchev, P; Hulsbergen, W; Hunt, P; Huse, T; Huston, R S; Hutchcroft, D; Hynds, D; Iakovenko, V; Ilten, P; Imong, J; Jacobsson, R; Jaeger, A; Jahjah Hussein, M; Jans, E; Jansen, F; Jaton, P; Jean-Marie, B; Jing, F; John, M; Johnson, D; Jones, C R; Jost, B; Kandybei, S; Karacson, M; Karbach, T M; Keaveney, J; Kerzel, U; Ketel, T; Keune, A; Khanji, B; Kim, Y M; Knecht, M; Koblitz, S; Koppenburg, P; Kozlinskiy, A; Kravchuk, L; Kreplin, K; Kreps, M; Krocker, G; Krokovny, P; Kruse, F; Kruzelecki, K; Kucharczyk, M; Kukulak, S; Kumar, R; Kvaratskheliya, T; La Thi, V N; Lacarrere, D; Lafferty, G; Lai, A; Lambert, D; Lambert, R W; Lanciotti, E; Lanfranchi, G; Langenbruch, C; Latham, T; Le Gac, R; van Leerdam, J; Lees, J-P; Lefévre, R; Leflat, A; Lefrançois, J; Leroy, O; Lesiak, T; Li, L; Li Gioi, L; Lieng, M; Liles, M; Lindner, R; Linn, C; Liu, B; Liu, G; Lopes, J H; Lopez Asamar, E; Lopez-March, N; Luisier, J; Machefert, F; Machikhiliyan, I V; Maciuc, F; Maev, O; Magnin, J; Malde, S; Mamunur, R M D; Manca, G; Mancinelli, G; Mangiafave, N; Marconi, U; Märki, R; Marks, J; Martellotti, G; Martens, A; Martin, L; Martín Sánchez, A; Martinez Santos, D; Massafferri, A; Mathe, Z; Matteuzzi, C; Matveev, M; Maurice, E; Maynard, B; Mazurov, A; McGregor, G; McNulty, R; Mclean, C; Meissner, M; Merk, M; Merkel, J; Messi, R; Miglioranzi, S; Milanes, D A; Minard, M-N; Monteil, S; Moran, D; Morawski, P; Mountain, R; Mous, I; Muheim, F; Müller, K; Muresan, R; Muryn, B; Musy, M; Mylroie-Smith, J; Naik, P; Nakada, T; Nandakumar, R; Nardulli, J; Nasteva, I; Nedos, M; Needham, M; Neufeld, N; Nguyen-Mau, C; Nicol, M; Nies, S; Niess, V; Nikitin, N; Nomerotski, A; Oblakowska-Mucha, A; Obraztsov, V; Oggero, S; Ogilvy, S; Okhrimenko, O; Oldeman, R; Orlandea, M; Otalora Goicochea, J M; Owen, P; Pal, K; Palacios, J; Palano, A; Palutan, M; Panman, J; Papanestis, A; Pappagallo, M; Parkes, C; Parkinson, C J; Passaleva, G; Patel, G D; Patel, M; Paterson, S K; Patrick, G N; Patrignani, C; Pavel-Nicorescu, C; Pazos Alvarez, A; Pellegrino, A; Penso, G; Pepe Altarelli, M; Perazzini, S; Perego, D L; Perez Trigo, E; Pérez-Calero Yzquierdo, A; Perret, P; Perrin-Terrin, M; Pessina, G; Petrella, A; Petrolini, A; Picatoste Olloqui, E; Pie Valls, B; Pietrzyk, B; Pilar, T; Pinci, D; Plackett, R; Playfer, S; Plo Casasus, M; Polok, G; Poluektov, A; Polycarpo, E; Popov, D; Popovici, B; Potterat, C; Powell, A; du Pree, T; Prisciandaro, J; Pugatch, V; Puig Navarro, A; Qian, W; Rademacker, J H; Rakotomiaramanana, B; Rangel, M S; Raniuk, I; Raven, G; Redford, S; Reid, M M; dos Reis, A C; Ricciardi, S; Rinnert, K; Roa Romero, D A; Robbe, P; Rodrigues, E; Rodrigues, F; Rodriguez Perez, P; Rogers, G J; Roiser, S; Romanovsky, V; Rosello, M; Rouvinet, J; Ruf, T; Ruiz, H; Sabatino, G; Saborido Silva, J J; Sagidova, N; Sail, P; Saitta, B; Salzmann, C; Sannino, M; Santacesaria, R; Santinelli, R; Santovetti, E; Sapunov, M; Sarti, A; Satriano, C; Satta, A; Savrie, M; Savrina, D; Schaack, P; Schiller, M; Schleich, S; Schmelling, M; Schmidt, B; Schneider, O; Schopper, A; Schune, M -H; Schwemmer, R; Sciascia, B; Sciubba, A; Seco, M; Semennikov, A; Senderowska, K; Sepp, I; Serra, N; Serrano, J; Seyfert, P; Shao, B; Shapkin, M; Shapoval, I; Shatalov, P; Shcheglov, Y; Shears, T; Shekhtman, L; Shevchenko, O; Shevchenko, V; Shires, A; Silva Coutinho, R; Skottowe, H P; Skwarnicki, T; Smith, A C; Smith, N A; Smith, E; Sobczak, K; Soler, F J P; Solomin, A; Soomro, F; Souza De Paula, B; Spaan, B; Sparkes, A; Spradlin, P; Stagni, F; Stahl, S; Steinkamp, O; Stoica, S; Stone, S; Storaci, B; Straticiuc, M; Straumann, U; Styles, N; Subbiah, V K; Swientek, S; Szczekowski, M; Szczypka, P; Szumlak, T; T'Jampens, S; Teodorescu, E; Teubert, F; Thomas, C; Thomas, E; van Tilburg, J; Tisserand, V; Tobin, M; Topp-Joergensen, S; Torr, N; Tran, M T; Tsaregorodtsev, A; Tuning, N; Ukleja, A; Urquijo, P; Uwer, U; Vagnoni, V; Valenti, G; Vazquez Gomez, R; Vazquez Regueiro, P; Vecchi, S; Velthuis, J J; Veltri, M; Vervink, K; Viaud, B; Videau, I; Vilasis-Cardona, X; Visniakov, J; Vollhardt, A; Voong, D; Vorobyev, A; Voss, H; Wacker, K; Wandernoth, S; Wang, J; Ward, D R; Webber, A D; Websdale, D; Whitehead, M; Wiedner, D; Wiggers, L; Wilkinson, G; Williams, M P; Williams, M; Wilson, F F; Wishahi, J; Witek, M; Witzeling, W; Wotton, S A; Wyllie, K; Xie, Y; Xing, F; Xing, Z; Yang, Z; Young, R; Yushchenko, O; Zavertyaev, M; Zhang, L; Zhang, W C; Zhang, Y; Zhelezov, A; Zhong, L; Zverev, E; Zvyagin, A

    2011-01-01

    The first observation of the decay $\\bar{B}^0_s \\to D^0 K^{*0}$ using $pp$ data collected by the LHCb detector at a centre-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 36 pb$^{-1}$, is reported. A signal of $34.4 \\pm 6.8$ events is obtained and the absence of signal is rejected with a statistical significance of more than nine standard deviations. The $\\bar{B}^0_s \\to D^0 K^{*0}$ branching fraction is measured relative to that of $\\bar{B}^0 \\to D^0 \\rho^0$: $\\frac{{\\cal B}(\\bar{B}^0_s \\to D^0 K^{*0})}{{\\cal B}(\\bar{B}^0 \\to D^0 \\rho^0)} = 1.48 \\pm 0.34 \\pm 0.15 \\pm 0.12$, where the first uncertainty is statistical, the second systematic and the third is due to the uncertainty on the ratio of the $B^0$ and $B^0_s$ hadronisation fractions.

  4. Trayectorias (sobre ruedas): un ensayo visual sobre los carritos de supermercado en la ciudad

    OpenAIRE

    Cruz, Edgar Gómez

    2014-01-01

    El siguiente trabajo es un breve bosquejo de las posibilidades del concepto de trabajo “trayectoria”. Una trayectoria no es sólo, en el sentido literal del término, el trazo del movimiento sobre un camino, sino que busca establecer una reflexión sobre las posibilidades de recolección de registros visuales/digitales/móviles para la investigación etnográfica desde la aleatoriedad del movimiento por la ciudad. El concepto de trayectoria busca dialogar con el de “flâneur” de De Certeau y Benjamin...

  5. II Jornadas sobre Emprendimiento Social y Colectivo

    OpenAIRE

    Centro de Investigación en Gestión de Empresas

    2013-01-01

    La línea temática principal del encuentro es el emprendimiento social y colectivo así como las diferentes líneas de investigación de los institutos y centros de la Red relacionadas, como: responsabilidad social, empleo y reincorporación al trabajo, inserción laboral, servicios sociales y dependencia, género, cambios legislativos, utilidad social, medio ambiente, desarrollo local,... Centro de Investigación en Gestión de Empresas (2013). II Jornadas sobre Emprendimiento Social y Colectivo. ...

  6. Literatura infantil sobre problemas infantiles: la diabetes

    OpenAIRE

    Lázaro Fernández, Patricia

    2015-01-01

    Debido al creciente número de casos de diabetes infantil que se está dando en la sociedad actual, no es raro encontrarse en las aulas cada vez más casos de esta enfermedad. Por esta razón, he decidido analizar dos libros sobre esta temática, para hacer un acercamiento del material seleccionado a las aulas y poder desarrollar junto con los niños un aprendizaje colectivo y cooperativo. En este trabajo se expone la importancia de la literatura y la literatura infantil como una ...

  7. Soportes apoyados sobre vigas pretensadas (EE. UU.

    Directory of Open Access Journals (Sweden)

    Editorial, Equipo

    1965-12-01

    Full Text Available This work has been awarded a prize by the Prestreesed Concrete Institute. It refers to a number of flyovers on the Arroyo Seco, of California. This river has been canalized, to help drainage in case of heavy rainfall. The canal runs through a highly populated zone, and a motor road and accessory ramps had to cross the canal. The resulting design involves three prestressed girders, lightly arched in a parabolic outline, resting on each river shore, running along the line of the bridge, over the canal. It was decided that the bridge piles should not rest on the river bed, in order not to reduce its flow capacity. The girders of a maximum length of 39 ms, are box shaped, and stiffened with thin diaphragms. The cylindrical pile, 1.50 m in diameter, is an integral part of the girder, and applies to it a concentrated load of about 4000 tons. The girders rest on reinforced concrete cubes, which in turn are supported by concrete slabs and piles driven into the soil.Esta obra ha sido premiada por el Prestressed Concrete Institute y se refiere a una serie de pasos superiores sobre el Arroyo Seco, en California, que se ha canalizado para servir de desagüe en el caso de avenidas torrenciales. El canal se halla en una zona de edificación densa y se trata del paso—sobre aquél—de una autopista y rampas de acceso. La solución adoptada consistió en tres vigas pretensadas, ligeramente arqueadas con perfil parabólico, apoyadas en las dos márgenes y situadas en correspondencia con los tres soportes, sobre el propio canal, ya que ninguno de aquéllos debía apoyarse en el lecho de este último al objeto de no disminuir su capacidad de desagüe. Las vigas—de unos 39 m de longitud la mayor—son del tipo cajón, rigidizadas con unos diafragmas de pequeño espesor. El soporte cilíndrico, de 1,50 m de diámetro, se solidariza con la viga y le transmite una notable carga concentrada, del orden de 4.000 toneladas. Los apoyos de estas vigas son simples dados

  8. Ensayo sobre la melancolía

    Directory of Open Access Journals (Sweden)

    Marta Chacón Salinas

    2013-07-01

    Full Text Available Este trabajo es un intento de delimitar la melancolía del conjunto de los trastornos depresivos y de reflexionar sobre sus características tal como aparecen en el discurso de los melancólicos. Se consideran algunas hipótesis en la línea psicoanalítica freudiana y lacaniana (Lambottc, Kristeva para entender cómo se va constituyendo en sus características principales: la intolerancia a la pérdida del objeto y el desfallecimiento del símbolo que le impide elaborar este duelo.

  9. Comentarios sobre dibujo analítico

    OpenAIRE

    Mata Botella, Elena

    2004-01-01

    Cuaderno de apoyo a la docencia del DIBUJO DE ARQUITECTURA que pretende hacer reflexionar al alumno (de primero o segundo de carrera) sobre un tipo de dibujo que aquí se ha llamado “dibujo analítico”. Un dibujo que a través de operaciones gráficas y conceptuales como la esquematización y la selección de información, tiende a alejarse de la descripción del objeto arquitectónico para adentrarse en determinados aspectos o dimensiones que subyacen en el proyecto arquitectónico. Unas notas intr...

  10. Sobre la evaluación docente

    OpenAIRE

    Chamizo, José Antonio

    2012-01-01

    Las universidades requieren una reflexión profunda sobre sus metas primordiales para construir una cultura de la evaluación de la actividad de enseñanza, la cual es diferente de la de investigación. La idea principal es que el proceso de evaluación sumativa, burocrático, superficial y cerrado, sea transformado en uno que involucre a los profesores y sea y abierto. Universities require a deep reflection on their ultimate goals to build a culture of evaluation on teaching activities, which a...

  11. Refuerzo de pavimentos sobre arcillas expansivas

    OpenAIRE

    Zornberg, Jorge

    2012-01-01

    El refuerzo de la capa base de pavimentos se ha utilizado a los efectos de: (i) aumentar la vida útil de un pavimento manteniendo el espesor de la capa base, o (ii) disminuir el espesor de la capa base manteniendo la vida útil del pavimento. Este artículo describe una tercera aplicación del refuerzo basal de pavimentos, a saber, la mitigación de grietas longitudinales inducidas en pavimentos construidos sobre subrasantes compuestas de arcillas expansivas. Aunque todavía existe la necesidad de...

  12. Cinco puntos sobre la revista Barcelona

    OpenAIRE

    Bertone Crippa, Mauro

    2012-01-01

    El humor, como género y narrativa mediática, ocupa un lugar destacado al interior del campo del periodismo gráfico argentino. Como emergente contemporáneo dentro de este ámbito, la revista Barcelona se vuelve un objeto de estudio sugestivo al trabajar, a partir del registro del humor, sobre la agenda y la enunciación de los medios gráficos de actualidad. De esta manera, se analizan las condiciones de producción del discurso de Barcelona para ver qué novedades aporta al campo del hu...

  13. Observaciones sobre colostomía

    Directory of Open Access Journals (Sweden)

    Jaime Escobar T.

    1971-01-01

    Full Text Available Se hace una revisión sobre 133 casos de colostomías hechas en pacientes del Hospital San Juan de Dios de Bogotá en un período de cinco años; el 43.7 por ciento de los casos eran heridas por arma de fuego. La mortalidad global fue de 16.5 por ciento. La colostomía derivativa, en ASA, ha bajado la mortalidad en las heridas de colon en dicho hospital.

  14. Tributos sobre a folha ou sobre o faturamento? Efeitos quantitativos para o Brasil

    Directory of Open Access Journals (Sweden)

    Tiago V Cavalcanti

    2008-09-01

    Full Text Available Este artigo estuda os impactos alocativos e de bem-estar de uma reforma tributária que substitui os impostos sobre a folha de salários por outro que incide sobre a receita. Para isso, desenvolve-se um modelo neoclássico de crescimento econômico com impostos sobre a receita e sobre a folha de salários. As simulações com parâmetros da economia brasileira mostram que tal reforma tributária tem um efeito negativo no bem-estar, no estoque de capital de longo prazo e consequentemente no produto per capita de longo prazo. Contudo, o emprego aumenta.This paper studies the impacts of a tax reform which substitutes taxes on labor income by taxes on total revenue. In order to accomplish that, we construct and solve a general equilibrium neoclassical growth model with taxes on labor income and total revenue. The numerical simulations with Brazilian parameters show that such tax reforms would negatively affect welfare, the capital stock, and consequently per capita output. However, employment would increase. Such effects are quantitatively important.

  15. Efecto de la ración alimenticia sobre la maduración gonadal y acumulación de grasa de anchoveta peruana (Engraulis ringens Jenyns, 1842 en cautiverio Effect of feeding ration on gonad maturation and fat accumulation in Peruvian anchovy (Engraulis ringens Jenyns, 1842 in captivity

    Directory of Open Access Journals (Sweden)

    Carlos Espinoza

    2009-01-01

    Full Text Available Se evaluó el efecto de la ración alimenticia sobre la tasa de maduración gonadal, el desempeño de las gónadas maduras y la redistribución de la energía consumida en gónada, músculo o grasa corporal en ejemplares de anchoveta peruana Engraulis ringens en condiciones de cautiverio Estos resultados ayudan a comprender los procesos reproductivos ocurridos en el medio natural ante alteraciones de factores ambientales tales como los eventos El Niño y La Niña, de gran implicancia en el ecosistema y las pesquerías del Pacífico oriental. El tiempo trascurrido desde el estadio inmaduro hasta vitelogénico fue de 45 días bajo condiciones alimenticias energéticamente óptimas y temperatura alrededor de 16,5°C (46,1 cal g-1 pez día-1 . Las hembras alimentadas con 138,3 cal g-1 pez día-1 alcanzaron la máxima vitelogénesis en 30 días y, aunque el alimento fue excesivo, no incrementaron su masa muscular pero si presentaron mayor acumulación de grasa corporal y presencia de ovocitos más grandes, lo cual indica un incremento en el almacenamiento energético en la hembra y su progenie. Los ovocitos vitelogénicos de los peces alimentados con 46,1 cal g-1 pez día-1 presentaron atresia más rápido que los ovocitos vitelogénicos de peces alimentados con 138,3 cal g-1 pez día-1 . Aunque la cantidad de alimento fue adecuada, las hembras no desovaron durante el experimento. En machos, la disponibilidad de alimento también aceleró la maduración gonadal pero la expulsión de espermatozoides parece haber estado condicionada por la presencia de hembras con ovocitos en máximo estado de vitelogénesis.We analyzed the effect that feeding rations have on gonad maturation, mature gonad performance, and the redistribution of the energy taken up by the gonads, muscle, and body fat in captive specimens of Peruvian anchovy (Engraulis ringens. These results help us understand the reproductive processes occurring in the natural environment given changes

  16. Sobre Geoestatística e mapas

    Directory of Open Access Journals (Sweden)

    Paulo Milton Barbosa Landim

    2015-06-01

    Full Text Available A Geologia, até há bem pouco tempo, era freqüentemente considerada uma ciência baseada em interpretações puramente qualitativas dos fenômenos geológicos. Nos últimos 40 anos, porém, tem sido notável a mudança da fase descritiva para a utilização de métodos quantitativos, principalmente na área da Geologia Aplicada. Entre tantos temas relacionados com a quantificação em Geologia o assunto abordado neste artigo, que pretende ser de cunho didático, diz respeito à aplicação da Geoestatística na confecção de mapas geológicos. Na primeira parte do trabalho é feita uma introdução sobre os aspectos quantitativos na interpretação dos fenômenos geológicos, em seguida conceitos básicos sobre a metodologia geoestatística e, na última parte, uma aplicação clássica da geoestatística linear, baseada nos conceitos de estacionaridade da covariância e do variograma, para a confecção de mapas.

  17. Estrategia educativa sobre sexualidad sana en adolescentes

    Directory of Open Access Journals (Sweden)

    Carmen Olivera Carmenates

    Full Text Available Se realizó un estudio de intervención con el objetivo de elaborar una estrategia educativa para incrementar conocimientos sobre sexualidad sana en un grupo de adolescentes de la escuela Secundaria Básica Alfredo Gómez del Municipio Camagüey entre octubre de 2012 y febrero de 2013. La muestra fue de 37 estudiantes. Se aplicó una encuesta que se convirtió en el registro primario de datos, confeccionada según criterios de expertos y la bibliografía. Una vez analizados los resultados se procedió a diseñar la estrategia educativa y posteriormente a su evaluación. Los datos se procesaron de forma automatizada. Antes de aplicar la estrategia educativa se comprobó que los adolescentes no tenían un adecuado conocimiento sobre la sexualidad sana. Los resultados demuestran la importancia de los estudios de intervención.

  18. Bayesian chronological analyses consistent with synchronous age of 12,835–12,735 Cal B.P. for Younger Dryas boundary on four continents

    Science.gov (United States)

    Kennett, James P.; Kennett, Douglas J.; Culleton, Brendan J.; Aura Tortosa, J. Emili; Bischoff, James L.; Bunch, Ted E.; Daniel, I. Randolph; Erlandson, Jon M.; Ferraro, David; Firestone, Richard B.; Goodyear, Albert C.; Israde-Alcántara, Isabel; Johnson, John R.; Jordá Pardo, Jesús F.; Kimbel, David R.; LeCompte, Malcolm A.; Lopinot, Neal H.; Mahaney, William C.; Moore, Andrew M. T.; Moore, Christopher R.; Ray, Jack H.; Stafford, Thomas W.; Tankersley, Kenneth Barnett; Wittke, James H.; Wolbach, Wendy S.; West, Allen

    2015-01-01

    The Younger Dryas impact hypothesis posits that a cosmic impact across much of the Northern Hemisphere deposited the Younger Dryas boundary (YDB) layer, containing peak abundances in a variable assemblage of proxies, including magnetic and glassy impact-related spherules, high-temperature minerals and melt glass, nanodiamonds, carbon spherules, aciniform carbon, platinum, and osmium. Bayesian chronological modeling was applied to 354 dates from 23 stratigraphic sections in 12 countries on four continents to establish a modeled YDB age range for this event of 12,835–12,735 Cal B.P. at 95% probability. This range overlaps that of a peak in extraterrestrial platinum in the Greenland Ice Sheet and of the earliest age of the Younger Dryas climate episode in six proxy records, suggesting a causal connection between the YDB impact event and the Younger Dryas. Two statistical tests indicate that both modeled and unmodeled ages in the 30 records are consistent with synchronous deposition of the YDB layer within the limits of dating uncertainty (∼100 y). The widespread distribution of the YDB layer suggests that it may serve as a datum layer. PMID:26216981

  19. Bayesian chronological analyses consistent with synchronous age of 12,835-12,735 Cal B.P. for Younger Dryas boundary on four continents.

    Science.gov (United States)

    Kennett, James P; Kennett, Douglas J; Culleton, Brendan J; Aura Tortosa, J Emili; Bischoff, James L; Bunch, Ted E; Daniel, I Randolph; Erlandson, Jon M; Ferraro, David; Firestone, Richard B; Goodyear, Albert C; Israde-Alcántara, Isabel; Johnson, John R; Jordá Pardo, Jesús F; Kimbel, David R; LeCompte, Malcolm A; Lopinot, Neal H; Mahaney, William C; Moore, Andrew M T; Moore, Christopher R; Ray, Jack H; Stafford, Thomas W; Tankersley, Kenneth Barnett; Wittke, James H; Wolbach, Wendy S; West, Allen

    2015-08-11

    The Younger Dryas impact hypothesis posits that a cosmic impact across much of the Northern Hemisphere deposited the Younger Dryas boundary (YDB) layer, containing peak abundances in a variable assemblage of proxies, including magnetic and glassy impact-related spherules, high-temperature minerals and melt glass, nanodiamonds, carbon spherules, aciniform carbon, platinum, and osmium. Bayesian chronological modeling was applied to 354 dates from 23 stratigraphic sections in 12 countries on four continents to establish a modeled YDB age range for this event of 12,835-12,735 Cal B.P. at 95% probability. This range overlaps that of a peak in extraterrestrial platinum in the Greenland Ice Sheet and of the earliest age of the Younger Dryas climate episode in six proxy records, suggesting a causal connection between the YDB impact event and the Younger Dryas. Two statistical tests indicate that both modeled and unmodeled ages in the 30 records are consistent with synchronous deposition of the YDB layer within the limits of dating uncertainty (∼ 100 y). The widespread distribution of the YDB layer suggests that it may serve as a datum layer.

  20. The impact of threshold language assistance programming on the accessibility of mental health services for persons with limited English proficiency in the Medi-Cal setting.

    Science.gov (United States)

    McClellan, Sean R; Wu, Frances M; Snowden, Lonnie R

    2012-06-01

    Title VI of the 1964 Civil Rights Act prohibits federal funds recipients from providing care to limited English proficiency (LEP) persons more limited in scope or lower in quality than care provided to others. In 1999, the California Department of Mental Health implemented a "threshold language access policy" to meet its Title VI obligations. Under this policy, Medi-Cal agencies must provide language assistance programming in a non-English language where a county's Medical population contains either 3000 residents or 5% speakers of that language. We examine the impact of threshold language policy-required language assistance programming on LEP persons' access to mental health services by analyzing the county-level penetration rate of services for Russian, Spanish, and Vietnamese speakers across 34 California counties, over 10 years of quarterly data. Exploiting a time series with nonequivalent control group study design, we studied this phenomena using linear regression with random county effects to account for trends over time. Threshold language policy-required assistance programming led to an immediate and significant increase in the penetration rate of mental health services for Russian (8.2, P language speaking persons. Threshold language assistance programming was effective in increasing mental health access for Russian and Vietnamese, but not for Spanish-speaking LEP persons.

  1. Heterogeneous reactivity of sea spray particles during the CalNex field campaign: Insight from single particle measurements and correlations with gas phase measurements

    Science.gov (United States)

    Gaston, C. J.; Riedel, T. P.; Thornton, J. A.; Wagner, N.; Brown, S. S.; Quinn, P.; Bates, T. S.; Prather, K. A.

    2011-12-01

    Sea spray particles are ubiquitous in marine environments. Heterogeneous reactions between sea spray particles and gas phase pollutants, such as HNO3(g), and N2O5(g), alter particle composition by displacing particulate phase halogens in sea spray and releasing these halogen species into the gas phase; these halogen-containing gas phase species play a significant role in tropospheric ozone production. Measurements of both gas phase and particle phase species on board the R/V Atlantis during the CalNEX 2010 field campaign provided an opportunity to examine the impact of heterogeneous reactivity of marine aerosols along the California coast. During the cruise, coastal measurements were made near the Santa Monica and Port of Los Angeles regions to monitor the chemical processing of marine aerosols. Sea spray particles were analyzed since these particles were the major chloride-containing particles detected. Real-time single particle measurements made using an aerosol time-of-flight mass spectrometer (ATOFMS) revealed the nocturnal processing of sea spray particles through the loss of particulate chloride and a simultaneous gain in particulate nitrate. Gas phase measurements are consistent with the particle phase observations: As N2O5(g) levels rose overnight, the production of ClNO2(g) coincided with the decrease in particulate chloride. These observations provide unique insight into heterogeneous reactivity from both a gas and particle phase perspective. Results from these measurements can be used to better constrain the rate of heterogeneous reactions on sea spray particles.

  2. Development of an analytic method for arsenic's determination in lime and tortilla; Desarrollo de un metodo analitico para determinacion de arsenico en cal y tortilla

    Energy Technology Data Exchange (ETDEWEB)

    Huato Soberanis, Julio; Ogura, Tetsuya [Universidad Autonoma de Guadalajara, Guadalajara, Jalisco (Mexico)

    1995-02-01

    A spectrophotometric method to determine As in tortilla and lime has been optimized, modifying the AsH{sub 3} generator. The reaction between arsin (AsH{sub 3}){sub 4} and diethyldithiocarbamate of Ag (AgDDC); was followed spectrophotometrically. The conditions under which the As remains in the ash during the calcination of the tortillas were studied. It was found that when they were heated in a quartz tube with a careful control of the air flow and oxygen, as well as the heating temperature, the arsenic loss in minimized. [Spanish] Se ha optimizado el metodo para determinar As en la tortilla y cal mediante espectrometria en el visible del color producido en la reaccion entre Arsina (AsH{sub 3}){sub 4} y dietilditiocarbamato de plata (AgDDC); modificando el generador de AsH{sub 3}. Se han buscado las condiciones en las que el arsenico permanece en las cenizas de la calcinacion de las tortillas; encontrandose que las tortillas deben calentarse en un tubo de cuarzo con control del flujo de aire y oxigeno asi como de la temperatura de calentamiento.

  3. A Globalização e os Novos Espaços Industriais : A Indústria de Calçados da Paraíba

    Directory of Open Access Journals (Sweden)

    José Antonio Rodrigues da Silva

    2011-05-01

    Full Text Available Nos últimos anos, globalização tornou-se uma palavra-chave para a organização do nosso pensamento acerca das mudanças na economia mundial contemporânea. Observa-se que o processo de globalização está conduzindo a uma profunda reorganização do capitalismo e do papel que determinadas áreas geográficas, como Estados ou regiões, desempenham dentro do sistema. Como resultado, o interesse no papel das economias externas e dos efeitos de cooperação no desenvolvimento regional cresceu expressivamente nos anos 90, influenciado pelo sucesso da experiência italiana de distritos industriais de pequenas firmas. Muitos estudos de caso têm mostrado que a aglomeração produz uma eficiência coletiva que pode ajudar as pequenas empresas locais a superarem as restrições de crescimento. Este trabalho relata os resultados de uma análise empírica de três distritos calçadistas do Estado da Paraíba (cobrindo 38 empresas. Mostrando que nesses distritos existe uma enorme heterogeneidade de tamanho e desempenho. As firmas desenvolvem diferentes tipos de flexibilidade com respeito à produção, tecnologia e a emprego, de forma que nem sempre correspondem ao tipo ideal sugerido no modelo de distrito industrial.

  4. Different defect levels configurations between double layers of nanorods and film in ZnO grown on c-Al2O3 by MOCVD

    International Nuclear Information System (INIS)

    Wu, Bin; Zhang, Yuantao; Shi, Zhifeng; Li, Xiang; Cui, Xijun; Zhuang, Shiwei; Zhang, Baolin; Du, Guotong

    2014-01-01

    Epitaxial ZnO structures with inherent two layers of nanorods layer on film layer were fabricated on c-Al 2 O 3 by metal-organic chemical vapor deposition (MOCVD) and studied by photoluminescence. Specially, photoluminescence spectra for the film layer were obtained by rendering the excitation from the substrate side. Different defect levels configurations between nanorods and film were revealed. Zinc vacancies tend to form in top nanorods layer, whereas abundant zinc–oxygen divacancies accumulate in bottom film layer. An acceptor state with activation energy of ∼200 meV is exclusive to the film layer. The stacking fault related acceptor and Al introduced donor are present in both layers. Besides, two other defect related donors contained in the nanorods layer perhaps also exist within the film layer. - Highlights: • Inherent double layer ZnO of nanorods on film layer were studied by PL. • V Zn tend to form in the nanorods layer, and V ZnO accumulate in the film layer. • An acceptor with activation energy of ∼200 meV is exclusive to the film layer. • Pure NBE emission without DLE in RT PL spectrum does not mean good crystallinity

  5. Investigaciones sobre la Fertilidad de los Suelos de Tres Regiones del Norte de Colombia

    Directory of Open Access Journals (Sweden)

    Rodríguez J. Manuel

    1962-09-01

    Full Text Available Se hizo el estudio sobre la fertilidad de los suelos de tres regiones en el norte de Colombia a saber: San Jorge, Bajo Cauca y Ayapel. Se tomaron muestras en los lugares que se consideraron más representativos, para hacer análisis químicos detallados yen, sayos de invernadero. Los ensayos de invernadero se hicieron siguiendo la técnica de Jenny con algunas variaciones que consistieran en lo siguiente: a adicionar dos tratamientos más, uno completo más elementos menores y otro completo más cal; b hacer dos siembras de lechuga en la misma maceta, agregando en la primera todos los elementos, pero en la segunda sólo N y K; c usar el sistema del análisis de variancia para comparar los resultados obtenidos. En los análisis químicos se encontró que los suelos de San Jorge son casi neutros (pH 6,7 mientras que los del Bajo Cauca y Ayapel son frecuentemente ácidos (pH 5.38 y 5.10 respectivamente. El contenido de materia orgánica está entre 1.70 y 2,67%, El P soluble extraído por el método de Olsen es bajo en los tres suelos estudiados, pero especialmente en los del Bajo Cauca y Ayapel (2,8 y 4,2 mg./ kg, respectivamente. Al analizar los resultados por el sistema de la variancia se encontró, para los suelos de San Jorge, que el N y el K disminuyen los rendimientos y que esta disminución es estadísticamente significativa para una de las siembras. Que la aplicación de elementos menores alimenta los rendimientos en las dos siembras y que en una de ellas es estadísticamente significativa. Para el suelo del Bajo Cauca, la aplicación de P o de elementos menores aumenta en las dos siembras los rendimientos y en una de ellas en forma estadísticamente significativa. En los suelos de Ayapel se encontró que la cal o los elementos menores alimentaron los rendimientos en las dos siembras y en una de ellas el aumento fue estadísticamente significativo. En general, se puede observar por el rendimiento del testigo de los tres suelos, que el

  6. Perfil calórico do leite pasteurizado no banco de leite humano de um hospital escola Perfil calórico de la leche pasteurizada en el banco de leche humana de un hospital escuela en Londrina, Paraná, Brasil Caloric profile of pasteurized milk in the human milk bank at a university hospital

    Directory of Open Access Journals (Sweden)

    Priscila Santa de Moraes

    2013-03-01

    Full Text Available OBJETIVO: Conhecer o perfil calórico e higiênico sanitário do leite humano do Banco de Leite Humano do Hospital Universitário de Londrina. MÉTODOS: Estudo quantitativo transversal do levantamento de dados obtidos de fontes secundárias de registros dos exames de teor calórico, avaliado pelo crematócrito, e da titulação de acidez pelo método de Dornic do leite humano, coletado pelo Banco de Leite Humano do Hospital Universitário de Londrina. RESULTADOS: Entre 2006 e 2009, foram analisadas 30.846 amostras de leite humano de doadoras de várias localidades, totalizando 5.869L de leite coletado e distribuído. Deste leite humano pasteurizado, 53,5% foi classificado como hipocalórico (menos que 580kcal/L, 36,4% como calórico e 8,3% como hipercalórico (maior que 711kcal/L. De acordo com as várias localidades de origem dos leites, o Banco de Leite Humano de Londrina foi o local onde se observou uma maior quantidade de doação nas três classificações. Ao exame da titulação de acidez Dornic do leite humano coletado, encontrou-se 60,8% com valores entre 4,1º e 8,0º Dornic. CONCLUSÕES: Grande parte do leite coletado é hipocalórica e está própria para o consumo em relação ao perfil higiênico sanitário. É preciso intensificar a coleta deste alimento para atender à demanda de leite hipercalórico para os recém-nascidos prematuros.OBJETIVO: Conocer el perfil calórico de la leche humana del Banco de Leche Humana del Hospital Universitario de Londrina y el perfil higiénico sanitario obtenido por el examen de titulación de acidez Dornic. MÉTODOS: Estudio cuantitativo transversal del inventario de datos obtenidos de fuentes secundarias de registros de los exámenes de tenor calórico, evaluado por el crematócrito, y de la titulación de acidez por el método de Dornic de la leche humana, recogida por el Banco de Leche Humana del Hospital Universitario de Londrina. RESULTADOS: Entre 2006 y 2009 fueron analizadas 30

  7. Apuntes sobre el Cultivo del Cacao

    Directory of Open Access Journals (Sweden)

    Ochoa Horacio

    1940-03-01

    Full Text Available Por muchos años permaneció el cultivo del cacao en nuestro país, en un deplorable atraso técnico; el agricultor a duras penas si tenía conocimientos generales de su explotación y, de una industria que tuvo su auge debido a la extensividad de las plantaciones, hoy sólo resta una reducida porción de ella. ¿Qué factores operaron esa tan notoria reducción hasta el punto de que exportadores en otros tiempos nos convertimos en importadores obligados de ese producto? Hay muchas razones de orden técnico y de orden económico. Los cacaotaleros obtenían halagadoras retribuciones cuando el jornal consistía en la alimentación que se le daba a la peonada y cuando, generoso, añadía una sobretasa en dinero. Bajo ese sistema de explotación, el descuadre que pudiera ocasionar tanto las enfermedades criptogámicas como los plagas, no era suficiente como para provocar el pesimismo en el hacendado y por tanto inducirlo al abandono de la plantación. A medida que las condiciones sociales del campesino se fueron modificando y su standard de vida aumentaba, cambió fundamentalmente el mecanismo de la industria Se observó entonces que los árboles morían y que era pobre la producción; que lo que en tiempos pasados fuera un negocio lucrativo, se les había convertido en una actividad improductiva y, para controlar estos fenómenos que se generalizaban en todas las zonas cacaotaleras, opusieron la ignorancia, el rutinarismo y la desidia. Lentamente se han ido modificando los conceptos antiguos sobre el trabajo cultural y los cuidados que con relación a las enfermedades y plagas requiere este delicado cultivo; la rutina está echando paso atrás y las experiencias científicas que procuran la prosperidad del plantío, se ponen en práctica en algunas zonas . Esto da esperanza para la reconstitución de la industria cacaotalera en nuestro país, que cuenta con inmensas regiones de óptima calidad para hacerla florecer sobre bases nuevas, con

  8. Sobre a moralidade do direito em Kant

    Directory of Open Access Journals (Sweden)

    Joãosinho Beckenkamp

    2009-07-01

    Full Text Available http://dx.doi.org/10.5007/1677-2954.2009v8n1p63 Na atual literatura sobre a fi losofi a prática de Kant há uma tendência a negligenciar a distinção feita na Metaphysik der Sitten entre direito (Jus e ética (Ethica, a ponto de ser a doutrina do direito de Kant vista como uma mera aplicação do imperativo categórico. Este artigo procura mostrar que Kant apresenta em sua doutrina do direito uma série de argumentos que logram estabelecer o direito de modo inteiramente independente da ética.

  9. Zubiri et alii sobre la consciencia

    Directory of Open Access Journals (Sweden)

    Solari, Enzo

    2016-08-01

    Full Text Available In recent literature on science and philosophy related to consciousness, the description and analysis are not always appropriate for the phenomenical consciousness that one wants to explain. From this one can sustain, contrary to some approaches to neuroscience and analytic philosophy, that the fact of consciousness previously requires a better phenomenological description and a more precise conceptual analysis.En la reciente literatura científica y filosófica sobre la consciencia no siempre se describe ni analiza adecuadamente cuál es esa consciencia fenoménica que se desea explicar. De ahí que se argumente, contra ciertas aproximaciones de la neurociencia y la filosofía analítica, que el hecho de la consciencia necesita previamente de una mejor descripción fenomenológica y de una más ajustada analítica conceptual.

  10. Notas de historia sobre ética

    OpenAIRE

    Hernando Forero Caballero

    1998-01-01

    La primera reglamentación de que se tiene noticia sobre la profesión médica es la dictada por el rey Hamurabi de Babilonia, en la cual se protocolizó el códice que lleva su nombre, hacia los 2000 años antes de Cristo. En el Egipto antigua, los libros Herméticos del Dios Thoh contenían profundos preceptos de moral médica y conceptos científicos importantes de la medicina de entonces. En Persia y Arabia, los libros  Zendavesta y Vendia contenían principios de deontología médica, lo mismo que en...

  11. Reflexiones sobre contabilidad privada y contabilidad nacional

    Directory of Open Access Journals (Sweden)

    José Arturo Gutiérrez

    1995-01-01

    Full Text Available Se discuten las interrelaciones de la contabilidad privada y la contabilidad nacional, insistiendo en sus condicionantes internos contradictorios en relación con la sobredeterminación de la formación económico-social vigente. En relación con ello se introduce la reflexión sobre la unidad contradictoria entre empresa y capital, esto es, la base técnica frente a su determinante socioeconómico, conflicto que la propia contabilidad privada expresa: al describir el capital aporta necesariamente el conocimiento de la producción social. De allí su probable compatibilidad con el propósito de la contabilidad nacional, y, por extensión, ambiental.

  12. IMPRESSÕES SOBRE A JORNADA

    Directory of Open Access Journals (Sweden)

    Gabrie Rodrigues da Silva

    2012-07-01

    Full Text Available Entre os dias 10 e 13 de Outubro de 2008 ocorreu na Universidade Federal de Goiás – UFG campus de Catalão a IX Jornada sobre o Trabalho. Evento realizado anualmente pelo CEGeT (Centro de Estudos de Geografia do Trabalho, da UNESP/FCT campus de P. Prudente. No entanto, no ano de 2006 foi realizado na UNIOESTE campus de Marechal Cândido  Rondon/PR, através da iniciativa do Geolutas (Grupo de Estudos das Lutas no Campo e na Cidade que se prontificou a iniciar uma nova fase do evento, a de migração para outras Universidades, onde existem as células do CEGeT.

  13. Sobre el Boletín

    Directory of Open Access Journals (Sweden)

    Andrés Arias

    2007-04-01

    Full Text Available En la página de Internet de la Biblioteca Luis Ángel Arango se indica que una de la funciones principales del Boletín es la de reseñar la novedades bibliográfica que van apareciendo en el país. "Novedades": de lo nuevo, tanto en las publicaciones como en las reseñas. Es decir, si lo que asegura la página de la Biblioteca es cierto, quien se acerca al Boletín debe encontrarse con comentarios recientes sobre libros recientes. Con guía que le ayuden a elegir entre las mil ofertas que hay en el mercado bibliográfico. Pero bien sabemos que este objetivo no se cumple.

  14. Notas de historia sobre ética

    Directory of Open Access Journals (Sweden)

    Hernando Forero Caballero

    1998-01-01

    Full Text Available La primera reglamentación de que se tiene noticia sobre la profesión médica es la dictada por el rey Hamurabi de Babilonia, en la cual se protocolizó el códice que lleva su nombre, hacia los 2000 años antes de Cristo. En el Egipto antigua, los libros Herméticos del Dios Thoh contenían profundos preceptos de moral médica y conceptos científicos importantes de la medicina de entonces. En Persia y Arabia, los libros  Zendavesta y Vendia contenían principios de deontología médica, lo mismo que en el Código de Manu de las Indias y en los libros de la época de Confucio en la China.

  15. Assessing change in diet and biological affinity between the 4th and 3rd millennia cal BCE in the Portuguese Estremadura: a preliminary dental comparison of Feteira II and Bolores.

    Science.gov (United States)

    Horwath, B C; Waterman, A J; Lillios, K T; Irish, J D

    2014-04-01

    Although the social and political changes accompanying the transition from the Neolithic through Copper Age, between the 4th and 3rd millennia cal BCE, in southwestern Iberia are reasonably well understood, much less is known about whether population movements and dietary changes accompanied these transformations. To address this question, human dental remains from the Middle through Late Neolithic site of Feteira II (3600-2900 cal BCE) and the Late Neolithic site of Bolores (2800-2600 cal BCE) in the Portuguese Estremadura were used to examine diet (microwear) and affinity (dental non-metrics). Microwear features were not found to be significantly different between Feteira II and Bolores, suggesting that the emergence of social complexity during this period did not result in large-scale changes in subsistence practices during the period of use at these sites. Using the Arizona State University Dental Anthropology System and supporting statistics, no significant difference between the samples from Feteira II and Bolores was observed, suggesting that no population replacement occurred between the Middle Neolithic and Late Neolithic/Copper Age. However, at Bolores there is some indication that there may have been demographic exchanges between southern Iberian and North African populations during the Late Neolithic/Copper Age. Copyright © 2013 Elsevier GmbH. All rights reserved.

  16. Notas sobre Matisia longiflora Gleas. (Bombacaceae Notas sobre Matisia longiflora Gleas. (Bombacaceae

    Directory of Open Access Journals (Sweden)

    Fernández Alonso José Luis

    1992-09-01

    Full Text Available Dentro del grupo de géneros de bombacáceas de hojas simples que componen la tribu Quararibeae (= Matisieae Hutchinson, es Matisia Humb. & Bonpl. el que cuenta con mayor número de especies en Colombia. Al respecto se presentaron recientemente algunas consideraciones preliminares sobre la diversidad de especies en este grupo en Colombia (Fernández Alonso, 1991.

  17. Modeling regional aerosol and aerosol precursor variability over California and its sensitivity to emissions and long-range transport during the 2010 CalNex and CARES campaigns

    Science.gov (United States)

    Fast, J. D.; Allan, J.; Bahreini, R.; Craven, J.; Emmons, L.; Ferrare, R.; Hayes, P. L.; Hodzic, A.; Holloway, J.; Hostetler, C.; Jimenez, J. L.; Jonsson, H.; Liu, S.; Liu, Y.; Metcalf, A.; Middlebrook, A.; Nowak, J.; Pekour, M.; Perring, A.; Russell, L.; Sedlacek, A.; Seinfeld, J.; Setyan, A.; Shilling, J.; Shrivastava, M.; Springston, S.; Song, C.; Subramanian, R.; Taylor, J. W.; Vinoj, V.; Yang, Q.; Zaveri, R. A.; Zhang, Q.

    2014-09-01

    The performance of the Weather Research and Forecasting regional model with chemistry (WRF-Chem) in simulating the spatial and temporal variations in aerosol mass, composition, and size over California is quantified using the extensive meteorological, trace gas, and aerosol measurements collected during the California Nexus of Air Quality and Climate Experiment (CalNex) and the Carbonaceous Aerosol and Radiative Effects Study (CARES) conducted during May and June of 2010. The overall objective of the field campaigns was to obtain data needed to better understand processes that affect both climate and air quality, including emission assessments, transport and chemical aging of aerosols, aerosol radiative effects. Simulations were performed that examined the sensitivity of aerosol concentrations to anthropogenic emissions and to long-range transport of aerosols into the domain obtained from a global model. The configuration of WRF-Chem used in this study is shown to reproduce the overall synoptic conditions, thermally driven circulations, and boundary layer structure observed in region that controls the transport and mixing of trace gases and aerosols. Reducing the default emissions inventory by 50% led to an overall improvement in many simulated trace gases and black carbon aerosol at most sites and along most aircraft flight paths; however, simulated organic aerosol was closer to observed when there were no adjustments to the primary organic aerosol emissions. We found that sulfate was better simulated over northern California whereas nitrate was better simulated over southern California. While the overall spatial and temporal variability of aerosols and their precursors were simulated reasonably well, we show cases where the local transport of some aerosol plumes were either too slow or too fast, which adversely affects the statistics quantifying the differences between observed and simulated quantities. Comparisons with lidar and in situ measurements indicate

  18. Adição de resíduo do polimento de porcelanato em argamassas de restauro à base de cal

    Directory of Open Access Journals (Sweden)

    S. B. Breitenbach

    Full Text Available Resumo As argamassas de revestimento aplicadas ao restauro de obras e edifícios históricos devem ser compatíveis com os materiais pré-existentes, contribuindo com a preservação e reabilitação do patrimônio edificado sem comprometimento de seu valor arquitetônico. As argamassas mais empregadas no restauro de edifícios antigos são os traços de cal e agregado miúdo na razão de 1:3 por não serem tão duras quanto as de cimento. O desempenho e a durabilidade dessas argamassas podem ser melhorados, reduzindo o número de intervenções. A adição de resíduos finos pode contribuir com estes objetivos por meio do preenchimento de poros da argamassa no estado endurecido. O resíduo do polimento do porcelanato (RPP possui granulometria fina e pode ser aplicado substituindo parcialmente o agregado miúdo. Assim, o objetivo desse trabalho foi avaliar o efeito da adição de RPP em argamassas de restauro à base de cal, substituindo o agregado fino. Concentrações entre 5 e 30% foram estudadas e o comportamento comparado ao da argamassa padrão. Foram realizados ensaios de consistência, densidade de massa aparente, retenção de água e teor de ar incorporado no estado fresco. Para a avaliação do estado endurecido, foram moldados corpos de prova prismáticos ensaiados aos 90 dias de idade para avaliação da resistência mecânica à tração, flexão e compressão e aderência. Todos os ensaios realizados são normatizados pela ABNT. Os resultados mostraram que a substituição de areia por RPP resultou em maior densidade e compacidade em consequência da diminuição no teor de ar incorporado. As argamassas com concentrações de RPP entre 10 e 20% apresentaram melhor conjunto de propriedades no estado endurecido, com ganho em retração livre, maior resistência mecânica e aderência. A adição de RPP em substituição parcial da areia resultou em argamassas com melhor desempenho que sugere maior durabilidade, contribuindo para o

  19. Accuracy evaluation of a six-degree-of-freedom couch using cone beam CT and IsoCal phantom with an in-house algorithm.

    Science.gov (United States)

    Zhang, Qinghui; Driewer, Joseph; Wang, Shuo; Li, Sicong; Zhu, Xiaofeng; Zheng, Dandan; Cao, Yijian; Zhang, Jiaju; Jamshidi, Abolghassem; Cox, Brett W; Knisely, Jonathan P S; Potters, Louis; Klein, Eric E

    2017-08-01

    The accuracy of a six degree of freedom (6DoF) couch was evaluated using a novel method. Cone beam CT (CBCT) images of a 3D phantom (IsoCal) were acquired with different, known combinations of couch pitch and roll angles. Pitch and roll angles between the maximum allowable values of 357 and 3 degrees were tested in one degree increments. A total of 49 combinations were tested at 0 degrees of yaw (couch rotation angle). The 3D positions of 16 tungsten carbide ball bearings (BBs), each 4 mm in diameter and arranged in a known geometry within the IsoCal phantom, were determined in the 49 image sets with in-house software. The BB positions at different rotation angles were determined using a rotation matrix from the original BB positions at zero pitch and roll angles. A linear least squares fit method estimated the rotation angles and differences between detected and nominal rotation angles were calculated. This study was conducted for the case with and without extra weight on the couch. Couch walk shifts for the system were investigated using eight combinations of rotation, roll and pitch. A total of 49 CBCT images with voxel sizes 0.5 × 0.5 × 1.0 mm 3 were taken for the case without extra weight on the couch. The 16 BBs were determined to evaluate the isocenter translation and rotation differences between the calculated and nominal couch values. Among all 49 calculations, the maximum rotation angle differences were 0.10 degrees for pitch, 0.15 degrees for roll and 0.09 degrees for yaw. The corresponding mean and standard deviation values were 0.028 ± 0.032, -0.043 ± 0.058, and -0.009 ± 0.033 degrees. The maximum translation differences were 0.3 mm in the left-right direction, 0.5 mm in the anterior-posterior direction and 0.4 mm in the superior-inferior direction. The mean values and corresponding standard deviations were 0.07 ± 0.12, -0.05 ± 0.25, and -0.12±0.14 mm for the planes described above. With an 80 kg phantom on the couch, the

  20. Last Deglaciation Events (16.1-11.4 cal-Ka) Recorded in a Speleothem from DeSoto Caverns, Alabama, U.S.A.

    Science.gov (United States)

    Lambert, W. J.; Aharon, P.; Hellstrom, J.

    2007-12-01

    Whereas the rapid climate swings that occurred during the last deglaciation have been well documented in the Greenland ice cores, their cause/s continue to be a subject of heated debate. Clearly, more geographically dispersed records are required in order to provide better insight into the history of deglaciation, and by extension into the cause/s of the abrupt climate shifts. Particularly scarce are continental deglaciation records from the southeast North America whose atmospheric conditions were controlled by the retreating Laurentide Ice Sheet to the north and the Gulf of Mexico warm waters to the south. In order to remedy the absence of deglaciation records in the Southeast USA in general, and the Gulf Coast in particular, we have initiated a study of a 55-cm long stalagmite (DSSG-2) from the DeSoto Caverns in Childersburg, Alabama (33° 18'N, 86° 17'W). Seven radiocarbon AMS and eighteen U/Th TIMS dates reveal that the continuously layered stalagmite covers the time interval 31 to 11.4 cal-Ka at growth rates varying from 61 μm/decade at the start of deglaciation and up to 2700 μm/decade close to its termination. The combination of unusually high growth rates, pristine aragonite mineralogy and tight sampling (n=602) afforded generation of high fidelity δ13C and δ18O records from about 16.1 to 11.4 cal-Ka whose high resolution is comparable with the contemporaneous Greenland ice core records. The stalagmite δ18O record shows excellent agreement in relative amplitude shifts and timing of abrupt and brief cold reversals (Oldest Dryas, Older Dryas, Inter-Allerød Cold Period) that punctuated the overall trend of deglaciation warming (Bølling/Allerød period). The succeeding Younger Dryas is depicted in the stalagmite by rapid positive shifts in δ18O and δ13C of 1.3‰ and 2.3‰ (V-PDB) relative to the baseline mean value and its start and termination (12.7-11.8 Ka) are concordant within error with the dates reported from GISP2 ice core (12.82-11.60 Ka

  1. Evaluation of New and Proposed Organic Aerosol Sources and Mechanisms using the Aerosol Modeling Testbed. MILAGRO, CARES, CalNex, BEACHON, and GVAX

    Energy Technology Data Exchange (ETDEWEB)

    Hodzic, Alma [National Center for Atmospheric Research (NCAR), Boulder, CO (United States); Jimenez, Jose L. [Univ. of Colorado, Boulder, CO (United States)

    2015-04-09

    This work investigated the formation and evolution of organic aerosols (OA) arising from anthropogenic and biogenic sources in a framework that combined state-of-the-science process and regional modeling, and their evaluation against advanced and emerging field measurements. Although OA are the dominant constituents of submicron particles, our understanding of their atmospheric lifecycle is limited, and current models fail to describe the observed amounts and properties of chemically formed secondary organic aerosols (SOA), leaving large uncertainties on the effects of SOA on climate. Our work has provided novel modeling constraints on sources, formation, aging and removal of SOA by investigating in particular (i) the contribution of trash burning emissions to OA levels in a megacity, (ii) the contribution of glyoxal to SOA formation in aqueous particles in California during CARES/CalNex and over the continental U.S., (iii) SOA formation and regional growth over a pine forest in Colorado and its sensitivity to anthropogenic NOx levels during BEACHON, and the sensitivity of SOA to (iv) the sunlight exposure during its atmospheric lifetime, and to (v) changes in solubility and removal of organic vapors in the urban plume (MILAGRO, Mexico City), and over the continental U.S.. We have also developed a parameterization of water solubility for condensable organic gases produced from major anthropogenic and biogenic precursors based on explicit chemical modeling, and made it available to the wider community. This work used for the first time constraints from the explicit model GECKO-A to improve SOA representation in 3D regional models such as WRF-Chem.

  2. The Cell Cycle Timing of Centromeric Chromatin Assembly in Drosophila Meiosis Is Distinct from Mitosis Yet Requires CAL1 and CENP-C

    Science.gov (United States)

    Gorgescu, Walter; Tang, Jonathan; Costes, Sylvain V.; Karpen, Gary H.

    2012-01-01

    CENP-A (CID in flies) is the histone H3 variant essential for centromere specification, kinetochore formation, and chromosome segregation during cell division. Recent studies have elucidated major cell cycle mechanisms and factors critical for CENP-A incorporation in mitosis, predominantly in cultured cells. However, we do not understand the roles, regulation, and cell cycle timing of CENP-A assembly in somatic tissues in multicellular organisms and in meiosis, the specialized cell division cycle that gives rise to haploid gametes. Here we investigate the timing and requirements for CID assembly in mitotic tissues and male and female meiosis in Drosophila melanogaster, using fixed and live imaging combined with genetic approaches. We find that CID assembly initiates at late telophase and continues during G1 phase in somatic tissues in the organism, later than the metaphase assembly observed in cultured cells. Furthermore, CID assembly occurs at two distinct cell cycle phases during male meiosis: prophase of meiosis I and after exit from meiosis II, in spermatids. CID assembly in prophase I is also conserved in female meiosis. Interestingly, we observe a novel decrease in CID levels after the end of meiosis I and before meiosis II, which correlates temporally with changes in kinetochore organization and orientation. We also demonstrate that CID is retained on mature sperm despite the gross chromatin remodeling that occurs during protamine exchange. Finally, we show that the centromere proteins CAL1 and CENP-C are both required for CID assembly in meiosis and normal progression through spermatogenesis. We conclude that the cell cycle timing of CID assembly in meiosis is different from mitosis and that the efficient propagation of CID through meiotic divisions and on sperm is likely to be important for centromere specification in the developing zygote. PMID:23300382

  3. Aerosol impacts on California winter clouds and precipitation during CalWater 2011: local pollution vs. long-range transported dust

    Science.gov (United States)

    Fan, J.; Leung, L. R.; DeMott, P. J.; Comstock, J. M.; Singh, B.; Rosenfeld, D.; Tomlinson, J. M.; White, A.; Prather, K. A.; Minnis, P.; Ayers, J. K.; Min, Q.

    2013-07-01

    Mineral dust aerosols often observed over California in winter/spring, associated with long-range transport from Asia and Sahara, have been linked to enhanced precipitation based on observations. Local anthropogenic pollution, on the other hand, was shown in previous observational and modeling studies to reduce precipitation. Here we incorporate recent developments in ice nucleation parameterizations to link aerosols with ice crystal formation in a spectral-bin cloud microphysical model coupled with the Weather Research and Forecasting (WRF) model, to examine the relative and combined impacts of dust and local pollution particles on cloud properties and precipitation type and intensity. Simulations are carried out for two cloud cases with contrasting meteorology and cloud dynamics that occurred on 16 February (FEB16) and 2 March (MAR02) from the CalWater 2011 field campaign. In both cases, observations show the presence of dust or dust/biological particles in a relative pristine environment. The simulated cloud microphysical properties and precipitation show reasonable agreement with aircraft and surface measurements. Model sensitivity experiments indicate that in the pristine environment, the dust/biological aerosol layers increase the accumulated precipitation by 10-20% from the Central Valley to the Sierra Nevada Mountains for both FEB16 and MAR02 due to a 40% increase in snow formation, validating the observational hypothesis. Model results show that local pollution increases precipitation over the windward slope of the mountains by few percent due to increased snow formation when dust is present but reduces precipitation by 5-8% if dust is removed on FEB16. The effects of local pollution on cloud microphysics and precipitation strongly depend on meteorology including the strength of the Sierra Barrier Jet, and cloud dynamics. This study further underscores the importance of the interactions between local pollution, dust, and environmental conditions for

  4. Aerosol impacts on California winter clouds and precipitation during CalWater 2011: local pollution versus long-range transported dust

    Science.gov (United States)

    Fan, J.; Leung, L. R.; DeMott, P. J.; Comstock, J. M.; Singh, B.; Rosenfeld, D.; Tomlinson, J. M.; White, A.; Prather, K. A.; Minnis, P.; Ayers, J. K.; Min, Q.

    2014-01-01

    Mineral dust aerosols often observed over California in winter and spring, associated with long-range transport from Asia and the Sahara, have been linked to enhanced precipitation based on observations. Local anthropogenic pollution, on the other hand, was shown in previous observational and modeling studies to reduce precipitation. Here we incorporate recent developments in ice nucleation parameterizations to link aerosols with ice crystal formation in a spectral-bin cloud microphysical model coupled with the Weather Research and Forecasting (WRF) model in order to examine the relative and combined impacts of dust and local pollution particles on cloud properties and precipitation type and intensity. Simulations are carried out for two cloud cases (from the CalWater 2011 field campaign) with contrasting meteorology and cloud dynamics that occurred on 16 February (FEB16) and 2 March (MAR02). In both cases, observations show the presence of dust and biological particles in a relative pristine environment. The simulated cloud microphysical properties and precipitation show reasonable agreement with aircraft and surface measurements. Model sensitivity experiments indicate that in the pristine environment, the dust and biological aerosol layers increase the accumulated precipitation by 10-20% from the Central Valley to the Sierra Nevada for both FEB16 and MAR02 due to a ~40% increase in snow formation, validating the observational hypothesis. Model results show that local pollution increases precipitation over the windward slope of the mountains by a few percent due to increased snow formation when dust is present, but reduces precipitation by 5-8% if dust is removed on FEB16. The effects of local pollution on cloud microphysics and precipitation strongly depend on meteorology, including cloud dynamics and the strength of the Sierra Barrier Jet. This study further underscores the importance of the interactions between local pollution, dust, and environmental

  5. Impacts of using an ensemble Kalman filter on air quality simulations along the California-Mexico border region during Cal-Mex 2010 field campaign.

    Science.gov (United States)

    Bei, Naifang; Li, Guohui; Meng, Zhiyong; Weng, Yonghui; Zavala, Miguel; Molina, L T

    2014-11-15

    The purpose of this study is to investigate the impact of using an ensemble Kalman filter (EnKF) on air quality simulations in the California-Mexico border region on two days (May 30 and June 04, 2010) during Cal-Mex 2010. The uncertainties in ozone (O3) and aerosol simulations in the border area due to the meteorological initial uncertainties were examined through ensemble simulations. The ensemble spread of surface O3 averaged over the coastal region was less than 10ppb. The spreads in the nitrate and ammonium aerosols are substantial on both days, mostly caused by the large uncertainties in the surface temperature and humidity simulations. In general, the forecast initialized with the EnKF analysis (EnKF) improved the simulation of meteorological fields to some degree in the border region compared to the reference forecast initialized with NCEP analysis data (FCST) and the simulation with observation nudging (FDDA), which in turn leading to reasonable air quality simulations. The simulated surface O3 distributions by EnKF were consistently better than FCST and FDDA on both days. EnKF usually produced more reasonable simulations of nitrate and ammonium aerosols compared to the observations, but still have difficulties in improving the simulations of organic and sulfate aerosols. However, discrepancies between the EnKF simulations and the measurements were still considerably large, particularly for sulfate and organic aerosols, indicating that there are still ample rooms for improvement in the present data assimilation and/or the modeling systems. Copyright © 2014 Elsevier B.V. All rights reserved.

  6. Avaliação da eficiência de cal virgem na inativação de ovos de nematoides - Strongyloides sp. parasitos de pacas - Cuniculus paca criadas em cativeiro

    Directory of Open Access Journals (Sweden)

    V.M.F. Ribeiro

    Full Text Available RESUMO Criadores de animais silvestres sempre buscam métodos eficientes de manter sua criação. Parasitos intestinais afetam os animais em cativeiro, diminuindo sua sobrevivência e reprodução. Este estudo teve como objetivo avaliar a eficácia do uso de cal virgem na desinfecção do solo e na prevenção da reinfestação de endoparasitos em pacas (Cuniculus paca em cativeiro. Amostras de solo das baias de criação foram analisadas usando-se o método de Rugai modificado. Duas etapas foram avaliadas: a primeira aos cinco, 45 e 105 minutos após os tratamentos, e a segunda aos sete dias e aos 14 dias após os tratamentos. Os valores de pH das amostras foram verificados após a aplicação de quatro tratamentos. Foram aplicados 400g/m2 de cal virgem a lanço ou 500mL/m2 de três soluções de cal virgem (10%, 20% ou 40% p/v. Na primeira etapa, a cal a lanço foi ineficaz na modificação do pH do solo e no controle de parasitos. A solução a 10% proporcionou o melhor controle dos parasitos. Na segunda etapa, as soluções foram eficazes na elevação do pH, porém não houve diferença significativa nos achados larvais. Concluiu-se que, nas condições do estudo, a solução a 10% aumentou o pH do solo e teve boa capacidade de inativação dos ovos de Strongyloides sp., o que economicamente é interessante. Porém, para o controle eficiente de Strongyloides sp. em cativeiros de pacas, deve-se considerar a frequência da aplicação de soluções com até 20% de cal, juntamente com a adoção de um programa de vermifugação.

  7. Melhoria de processos com recurso a ferramentas Lean : um caso prático numa indústria de calçado

    OpenAIRE

    Ramos, Patrícia Maria da Silva

    2015-01-01

    Nos dias de hoje as indústrias recorrem cada vez mais à filosofia lean, para atingir níveis de produtividade excelentes. Esta filosofia permite a uma empresa otimizar os seus recursos e eliminar ou minimizar desperdícios. A ergonomia é um fator importante nesta filosofia, uma vez que os recursos humanos são um fator chave na busca da melhoria contínua. O presente trabalho incide sobre a implementação de ferramentas lean com o objetivo de aumentar a eficiência e reduzir desperdícios no proc...

  8. Miradas francesas sobre la Guerra Civil

    Directory of Open Access Journals (Sweden)

    Jean-Marc DELAUNAY

    2015-03-01

    Full Text Available Como muestra el asunto hoy vigente —pero relativamente discreto— de la venta del edificio que abrigó el antiguo taller parisino donde Picasso hizo su Guernica (1937, la Guerra Civil española sigue siendo en Francia una referencia mayor de la historia contempóranea. Al ritmo de las conmemoraciones decenales de su estallido (1996/2006, se ha desarrollado una verdadera marea memorial nutrida tanto por la apertura de archivos escritos y audiovisuales como por la desinhibición de los nietos de exiliados condicionados durante tanto tiempo por la historia de la derrota de sus padres y abuelos. Animan el debate las tribulaciones de la vida política española actual, entre neofranquismo, republicanismo y nacionalismos centralistas y/o regionales. Por haber sido la unica vía de salida, Francia —metropolis y África del norte— se vio más involucrada que cualquier otro país al recibir la aplastante mayoría de los exiliados. Aunque los verdaderos especialistas en dicha guerra son poco numerosos, todo un mundillo se ha otorgado el derecho y la capacidad de escribir sobre ella como descendientes de exiliados o activistas políticos, sobre todo en el sur de Francia. Todos los medios se ven afectados: desde la literatura estrictamente histórica al internet. De las obras eruditas, de vulgarización —también para la juventud— a las memorias arrancadas al olvido; de las actas de los coloquios a los tebeos; de los álbumes fotográficos a los documentales (siempre pro republicanos. Al tiempo toda la producción histórica generalista o militar junta a los partidarios de una visión anticomunista, neutralista o manifestamente pro franquista. La Guerra Civil española, que había encontrado una Francia dividida, la reencuentra de nuevo como tal a pesar de todos los intentos de mediación científica.

  9. Reflexiones sobre la crisis. Vidas y Memorias

    Directory of Open Access Journals (Sweden)

    Estela Vázquez

    2009-11-01

    Full Text Available El artículo se plantea analizar la deslegitimación de la política y de los políticos, así como del acto de votar. Encuadrado en el marco del contexto de la crisis argentina de los últimos años, quiere responder, por medio de la entrevista oral y la historia de vida, a cómo se ve desde la ciudadanía el ejercicio de la democracia, las prácticas políticas, la alternancia en el poder y de qué forma todo esto influye en las vidas personales de los entrevistados. Asimismo, se entrelaza el análisis del espectáculo político con el público que ofrecen los medios de comunicación y de entretenimiento, con lo que se viene a concluir que es cada vez más difícil distinguir en el debate social la ficción de los hechos y personajes verdaderamente reales. Para este trabajo se analizan tres trayectorias laborales de ex-empleados de la administración pública, y sus apreciaciones sobre el despido, vinculando estas experiencias de vida a la formación de sus ideas sobre la política y los políticos.. Sus lugares de trabajo eran el Registro Civil, la Secretaría de Educación y la Legislatura, respectivamente.__________________ABSTRACT:This article tries to analyse the discredit of politics and politicians along with the act of voting. Placed in the context of the Argentine crisis, it wants to determinate through oral interview and life story how citizens see the exercise of democracy, the political practices and the power switching, to establish how they have influenced in the lifes of the persons being interviewed. At the same time, it interlaces an analysis of he political spectacle shown to the public by the media, to conclude that is becoming more a more difficult to distinguish the fiction from the real characters in the social debate.

  10. El puente Bendorf sobre el Rin (Alemania

    Directory of Open Access Journals (Sweden)

    Hirschfeld, Kurt

    1966-03-01

    Full Text Available This recently completed bridge over the Rhine is 524 m long, and is a reinforced concrete structure, built by successive overhangs, without the aid of formwork or scaffolding. The centre span is 208 m in length, and the other six vary between 43 and 71 m. The deck consists of two independent parts, including a continuous box girder, with a hinge at the crown of the main span. It is stiffened with transversal diaphragms, spaced every 34 m. The piles rest on pneumatic caissons, which go down to 16 m below the river bed. The attachment between the piles and the caissons is rigid, at the central pile, and at the other piles it operates through a roller bearing. The central span was constructed without intermediate supports for the first 40 m, and beyond that stage, for greater safety, a provisional movable tower was built, as a temporary point of support for the free overhang. The various sections were concreted and post-tensioned with 32 mm bars, by the Dywidag procedure. Account was taken of the varying deformations that took place at each section, so as to add the necessary counter-deflection that finally enabled the two sides of the arch to meet at the crown at the calculated point.Este puente, recientemente construido, sobre el Rin, tiene una longitud total de 524 m, es de hormigón armado y se ha realizado por el procedimiento de voladizos sucesivos, sin entramado auxiliar ni cimbras. La luz del tramo central es de 208 m, y las de los otros seis oscilan entre 43 y 71 m. La estructura del tablero se compone de dos partes independientes, formadas por una viga tipo cajón, continua, con una articulación en la clave del tramo central y rigidizada con diafragmas transversales espaciados a 34 m. Las pilas centrales se apoyan sobre cajones neumáticos que descienden 16 m debajo del fondo del río. La unión entre estas pilas y la estructura cajón es rígida, y de tipo rodillo en las otras pilas. El tramo central se ha construido por voladizos

  11. Alberti, Rafael: Cal Y canto

    DEFF Research Database (Denmark)

    Kritisk udgave, edición crítica, 27-generationen, generación del 27, digtning og maleri, poesía y pintura......Kritisk udgave, edición crítica, 27-generationen, generación del 27, digtning og maleri, poesía y pintura...

  12. REPRESENTAÇÃO SOCIAL DOS ENFERMEIROS SOBRE CUIDADOS PALIATIVOS

    OpenAIRE

    Coelho de Britto, Sabrina Maria; de Souza Ramos, Raquel; dos Santos, Érick Igor; da Silva Veloso, Olga; Melo da Silva, Aline; de Aguiar Mariz, Rosângela Guiomar

    2015-01-01

    Introdução: O presente estudo refere-se a um processo de investigação sobre a representação social dos enfermeiros sobre cuidados paliativos. Objetivos: identificar a estrutura das representações sociais dos enfermeiros sobre cuidados paliativos; discutir as repercussões dessas representações no cotidiano da prática assistencial. Materiais e Métodos: Para a realização deste estudo foram abordados 70 enfermeiros que atuam nas enfermarias do serviço de Clínica Médica. A técnica para coleta de d...

  13. Pistas para pensar las significaciones imaginarias sobre la invariancia

    OpenAIRE

    Bilyk, Pablo Andrés

    2011-01-01

    Este escrito propone un primer esbozo de nominalizaciones sobre las significaciones imaginarias en torno a la idea de invariancia, con el fin de comenzar a mapear categorías para transitar que nos permitan pensar las construcciones fantasmáticas sobre el no-cambio. En definitiva, se trata de avanzar sobre la problematización de los modos de funcionamiento, constitución y reconfiguraciones de las hegemonías en los entramados sociales contemporáneos. Facultad de Periodismo y Comunicación Soc...

  14. Estudio sobre encofrados de madera modernos

    Directory of Open Access Journals (Sweden)

    de la Peña Aznar, Juan M.

    1980-11-01

    Full Text Available The author continues the development of the subject «Modern Timber Formwork», by summing up the comparative examination —already carried out in Part III of this Study— of the different types of glued timber existing on the market. In addition, the loads and stresses allowable for coniferous timber and the proposal for establishing Regulations for the Timber Section of the Research and Experimental Forestry Institute of Spain are given. In part V of the author's Study, published in this article, the important subject of the glues used for joining timber, a truly vital point in order to obtain louvered timber beams which are simply glued together, is approached.

    El autor continúa el desarrollo del tema sobre «Encofrados de madera modernos», resumiendo el estudio comparativo —ya hecho en la Parte III de este Estudio— de las diferentes vigas de madera encolada existentes en el mercado dando, además, las cargas y tensiones admisibles para maderas coníferas y la propuesta de Reglamentación de la Sección de Maderas del Instituto Forestal de Investigaciones y Experiencias de España. En la parte V del Estudio del autor, publicada en este articulo, se aborda el importante tema de las colas empleadas para las uniones de madera, algo realmente vital para la obtención de vigas de madera en celosía simplemente encoladas.

  15. Sobre a diversidade de sentidos de comunidade

    Directory of Open Access Journals (Sweden)

    Silva, Rosalina Carvalho da

    2005-01-01

    Full Text Available Nosso objetivo neste trabalho foi realizar algumas reflexões sobre as implicações da expansão do uso do termo comunidade e sua diversidade de sentidos. Pretendemos discutir os usos indiscriminados do termo nem sempre acompanhados da devida reflexão e crítica. A partir das perspectivas da sociologia, saúde e psicologia social identificamos que o termo ainda permanece arraigado aos ideais de comunidades naturais próprios aos períodos do feudalismo e do pós-revolução industrial. Esta concepção pode camuflar formas impositivas de trabalho em muitos dos quais o termo comunidade é empregado praticamente como sinônimo de população-alvo e participação comunitária é vista meramente como freqüência às atividades propostas por profissionais que determinam quem são as comunidades. Comprometem-se assim, as práticas emancipatórias. Para repensarmos comunidades, hoje, consideramos necessário relevar os aspectos processuais relacionais, dialógicos e identitários em constantes mudanças. Assim, a condição de comunidade extrapola a delimitação geográfica para as possibilidades de pertencimento e participação através dos espaços simbolicamente delimitados

  16. NOTAS SOBRE A IRRACIONALIDADE DA GUERRA

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    Edilene Leal

    2014-08-01

    Full Text Available Nesse artigo, procedemos a uma análise sobre a irracionalidade da guerra em tempos cada vez mais caracterizados pela evolução da racionalidade técnica, ou seja, em tempos contemporâneos. Esse é o ponto a partir do qual traçamos, aqui, um percurso argumentativo dividido em duas partes. Na primeira, reconstituímos elementos da concepção de guerra de filósofos como Maquiavel, Clausewitz e Kant, destacando, nos dois primeiros pensadores, a prerrogativa de que a guerra é racional quando se configura meio para fins políticos. Na segunda parte, confrontamos essa racionalidade política da guerra com a dupla dimensão técnica que a guerra assumiu: de um lado, a guerra como um fim em si mesmo e não mais como meio da ação política; de outro, a dimensão racionalizante da guerra como resultado do progresso técnico e científico, atualizada como guerra do terror.

  17. Estudio sobre encofrados de madera modernos

    Directory of Open Access Journals (Sweden)

    de la Peña Aznar, Juan M.

    1980-03-01

    Full Text Available This article is a compendium of almost all of the existing literature, in addition to important contributions by the author, on forms —an important aspect of the building industry, as their cost is not infrequently as high or higher than that of the actual concrete poured. Thus, to the benefit of architects, engineers, site supervisors and carpenters, data are provided, as well as charts and calculations for a rational use of these forms, whether wooden, metal or of other material.

    En esta artículo sa compendia casi toda la literatura existente, así como importantes aportaciones del autor, sobre encofrados, capítulo importante en la construcción, ya que su costo resulta no pocas veces tan elevado o más que el propio hormigón vertido. Así, pues, en beneficio de arquKectos, ingenieros, encargados y carpinteros, se dan datos, cuadros y abacos para el empleo racional de los citados encofrados, sean de madera, metálicos, etcétera.

  18. Estudio sobre encofrados de madera modernos

    Directory of Open Access Journals (Sweden)

    de la Peña Aznar, Juan M.

    1980-06-01

    Full Text Available This article is a compendium of almost all of the existing literature, in addition to important contributions by the author, on forms —an important aspect of the building industry, as their cost is not infrequently as high or higher than that of the actual concrete poured. Thus, to the benefit of architects, engineers, site supervisors and carpenters, data are provided, as well as charts and calculations for a rational use of these forms, whether wooden, metal or of other material.

    En este artículo se compendia casi toda la literatura existente, así como importantes aportaciones del autor, sobre encofrados, capítulo importante en la construcción, ya que su costo resulta no pocas veces tan elevado o más que el propio hormigón vertido. Así pues en beneficio de arquitectos, ingenieros, encargados y carpinteros se dan datos, cuadros y ábacos para el empleo racional de los citados encofrados, sean de madera, metálicos, etc.

  19. Estudio sobre encofrados de madera modernos

    Directory of Open Access Journals (Sweden)

    de la Peña Aznar, Juan M.

    1980-10-01

    Full Text Available This article is a compendium of almost all of the existing literature, in addition to important contributions by the author, on forms —an important aspect of the building industry, as their cost is not infrequently as high or higher than that of the actual concrete poured. Thus, to the benefit of architects, engineers, site supervisors and carpenters, data are provided, as well as charts and calculations for a rational use of these forms, whether wooden, metal or of other material.

    En este artículo se compendia casi toda la literatura existente, así como importantes aportaciones del autor, sobre encofrados, capítulo importante en la construcción, ya que su costo resulta no pocas veces tan elevado o más que el propio hormigón vertido. Así pues en beneficio de arquitectos, ingenieros, encargados y carpinteros se dan datos, cuadros y ábacos para el empleo racional de los citados encofrados, sean de madera, metálicos, etc.

  20. Considerações sobre Agamben

    Directory of Open Access Journals (Sweden)

    Luiz Hebeche

    2012-12-01

    Full Text Available http://dx.doi.org/10.5007/1677-2954.2012v11n3p329 Giorgio Agamben em pequenos artigos, entrevistas e baixo-assinados tem chamado a atenção para o estado de abandono do povo palestino, mas curiosamente esse assunto não é tratado em suas obras mais importantes. Em Homo sacer, por exemplo, ele retoma o termo “muçulmano”, comumente empregado pelos prisioneiros dos campos de concentração como a expressão do maior abandono possível da existência humana, mas não reflete suficientemente sobre a origem dessa palavra, isto é, de que nessa expressão já se encontrava o ódio e o desprezo do sionismo, não só entre os próprios prisioneiros, mas pelo povo palestino e pelos árabes em geral. A seguir comentaremos brevemente algumas obras desse autor que, dando continuidade à ideologia da vitimação, faz com que, mais uma vez, o passado inominável acabe encobrindo o presente abominável.