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Sample records for formado por cal

  1. Aglomerante puzolánico formado por cal y ceniza de paja de caña de azúcar: la influencia granulométrica de sus componentes en la actividad aglomerante Pozzolanic binder constituted by lime and cane sugar straw ash: the granulometric influence of its components in the agglomerate activity

    Directory of Open Access Journals (Sweden)

    Lesday Martínez Fernández

    2007-08-01

    Full Text Available En el presente trabajo se realiza una caracterización de los componentes de una mezcla binaria formada por cal-ceniza de paja de caña de azúcar mediante las técnicas analíticas de difracción de rayos-x, de análisis químico y granulometric o, valorándose la evolución del proceso de fraguado de esta mezcla binaria, permitiendo dar respuesta a la búsqueda de alternativas como adiciones minerales activas al cemento. Los parámetros estadísticos de las curvas granulométricas de la cal, de la ceniza de la paja de caña y de la mezcla puzolánica (calxeniza = 3:7 brindan criterios del grado de mezclado de los componentes de la mezcla puzolánica y de la utilización de los granos pequeños (The present study carried out a characterization of the components of a binary blend comprised of lime-cane sugar straw ash by means of the analytic techniques ofray-x diffraction, chemical, and granulometric analysis. The evolution of the setting process of this binary blend was assessed, and it appears as an alternative mineral active addition to cement. The statistical parameters of granulometric curves of the lime, the cane straw ash and the pozzolanic blend (lime: ash = 3:7 provide criteria for mixing the blend components fitting the small grains (<9um in the voids formed by bigger grains (45 um. The right size combination can create a space of enhanced reactivity providing compressive strengths of 13 MPa at the age of 28 days

  2. Viga mista de aço e concreto constituída por perfil formado a frio preenchido

    OpenAIRE

    Igor Avelar Chaves

    2009-01-01

    As vigas mistas de aço e concreto têm sido amplamente empregadas em edifícios e pontes, havendo ampla investigação teórica e experimental a respeito da utilização de perfis laminados e soldados e conectores de cisalhamento compatíveis com esses perfis, como por exemplo, o conector tipo pino com cabeça (stud bolt) e perfil U laminado. No âmbito dos perfis formados a frio, a utilização do sistema misto ainda é incipiente, necessitando de investigações mais aprofundadas a respeito do comportamen...

  3. EFEITO DOS COMPOSTOS ORAGANOCALCOGÊNEOS (PhSe2 E (p-Cl-PhSe2 SOBRE A VIABILIDADE DO BIOFILME FORMADO POR Candida albicans

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    Marília Toledo Braga

    2017-05-01

    Full Text Available Os fungos do gênero Candida são capazes de produzir infecções superficiais ou sistêmicas em indivíduos com baixa resposta imunológica. Estes fungos promovem infecções a partir da sua capacidade de formar biofilmes. Os biofilmes formados por C. albicans são mais resistentes aos tratamentos antifúngicos convencionais. Portanto o objetivo deste trabalho foi avaliar e comparar o potencial antifúngico dos compostos organocalcogêneos (PhSe2 e (p­-Cl-PhSe2 sobre os biofilmes de C. albicans. Suspensões de C. albicans foram incubadas para a formação do biofilme e estes foram tratados com os compostos organocalcogêneos por 24 horas. Os resultados obtidos demonstraram o potencial antifúngico de ambos compostos sobre o biofilme formado por C. albicans, inibindo a viabilidade do biofilme e reduzindo a quantidade de células planctônicas. Esses compostos apresentaram uma resposta terapêutica promissora, uma vez que as opções para tratamento de infecções fúngicas é limitado.

  4. [B_Erandio_Martiartu] Documentación del conjunto formado por la Torre de Martiartu y la ermita de San Antonio (Erandio, Bizkaia)

    OpenAIRE

    Álvarez González, Irantzu; Lopetegi Galarraga, Ane; Mesanza Moraza, Amaia; Rodríguez Miranda, Álvaro; Valle Melón, José Manuel

    2002-01-01

    [ES] El conjunto está formado por la torre de Martiartu (de unas 16 x 16 metros de planta), la pequeña ermita de la San Antonio y el área circundante. La documentación de la torre se realiza mediante fotogrametría estereoscópica y rectificación fotográfica para la obtención de las ortoimágenes. La ermita de San Antonio y el entorno se ha documentado mediante estación total y mallado para crear un modelo de superficies tridimensional. Posteriormente se presentan los modelos 3D y la colecció...

  5. ESTADO DEL CONOCIMIENTO DEL NIVEL EDUCATIVO BÁSICO EN TABASCO GENERADO POR PROFESORES FORMADOS EN POSGRADOS

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    Verónica García Martínez

    2015-01-01

    Full Text Available Se presenta un reporte de investigación sobre el estado del conocimiento de las obras generadas por profesores que cursaron un posgrado y desarrollaron un trabajo de investigación sobre educación básica (que en México va de preescolar a secundaria, en el Estado de Tabasco, México, durante la década de 2001 a 2011. Esta demanda emanó del Gobierno del Estado, el cual buscaba recuperar el conocimiento producido en ese nivel, ya que es el menos atendido en la investigación educativa nacional. Para tal fin se realizó un análisis del contenido de las producciones ubicadas en las instituciones que ofrecen posgrados en educación en la entidad. Se analizaron 294 obras, en su mayoría tesis, de las cuales el 67% fueron escritas por mujeres, en un contexto geográfico institucional (74%, con una marcada preferencia por la metodología cualitativa y el área de Aprendizaje y Desarrollo Humano (43%. Se concluye que la orientación de la obra es mayor hacia el análisis pedagógico por la adscripción de los autores, y una perspectiva micro social, puesto que se realiza dentro de los mismos espacios de trabajo.

  6. Estado del conocimiento del nivel educativo básico en tabasco generado por profesores formados en posgrados

    Directory of Open Access Journals (Sweden)

    García Guzman, Verónica

    2015-05-01

    Full Text Available Se presenta un reporte de investigación sobre el estado del conocimiento de las obras generadas por profesores que cursaron un posgrado y desarrollaron un trabajo de investigación sobre educación básica (que en México va de preescolar a secundaria, en el Estado de Tabasco, México, durante la década de 2001 a 2011. Esta demanda emanó del Gobierno del Estado, el cual buscaba recuperar el conocimiento producido en ese nivel, ya que es el menos atendido en la investigación educativa nacional. Para tal fin se realizó un análisis del contenido de las producciones ubicadas en las instituciones que ofrecen posgrados en educación en la entidad. Se analizaron 294 obras, en su mayoría tesis, de las cuales el 67% fueron escritas por mujeres, en un contexto geográfico institucional (74%, con una marcada preferencia por la metodología cualitativa y el área de Aprendizaje y Desarrollo Humano (43%. Se concluye que la orientación de la obra es mayor hacia el análisis pedagógico por la adscripción de los autores, y una perspectiva micro social, puesto que se realiza dentro de los mismos espacios de trabajo.

  7. Detección y estudio mediante Fluorescencia Inducida por Láser de radicales libres formados por Disociación Multifotónica Infrarroja

    Science.gov (United States)

    Santos, M.; Díaz, L.; Torresano, J. A.; Rubio, L.; Samoudi, B.

    Una de las principales aplicaciones actuales de los procesos de disociación multifotónica inducidos por radiación láser infrarroja (DMI) es la producción de radiales libres, con el fin de estudiar sus propiedades cinéticas y espectroscópicas. La disociación de moléculas poliatómicas en el IR con láseres de CO2 tiene lugar desde la superficie de energía molecular mas baja y conduce generalmente a la formación de fragmentos en el estado electrónico fundamental, con diversos grados de excitación vibracional. En el Grupo de Procesos Multifotónicos del Instituto de Estructura de la Materia del C.S.I.C. hemos puesto a punto la técnica de Fluorescencia Inducida por Láser (LIF) para la detección y análisis en tiempo real de los fragmentos producidos en la DMI inducida mediante uno o dos campos láseres de diferentes longitudes de onda. Objetivos de nuestro trabajo han sido el estudio de los canales de disociación mayoritarios y de las especies transitoria producidas, así como de la distribución de energía interna con que éstas son generadas. En particular hemos detectado mediante LIF las especies: C2, CF, CH, SiH2, CF2, CH2, SiHCl, y CF3 a partir de la disociación de, entre otras, las siguientes moléculas: C2H3Br, C3F6, C4H8Si, C2H5ClSi y CH5ClSi. En este trabajo presentamos algunos de los resultados obtenidos mediante el estudio por LIF de estos radicales: estudio temporal de la señal LIF obtenida con determinación de tiempos de vida, espectros de excitación y fluorescencia, temperaturas vibracionales de formación, variación de la intensidad LIF con el tiempo de retraso entre los láseres de disociación y prueba, etc.

  8. Control biológico del Tizón Tardío Phytophthora infestans en papa Solanum tuberosum a través de consorcios microbianos formados por hongos nativos del género Trichoderma sp.

    OpenAIRE

    Bustamante Gavilanes, Adriana Elizabeth

    2015-01-01

    Esta investigación evalúo la eficiencia de consorcios microbianos formados por hongos nativos del género Trichoderma sp. como biocontroladores del tizón tardío Phytophthora infestans en papa Solanum tuberosum. En las pruebas de antagonismo las cepas del género Trichoderma sp. inhibieron en promedio entre 83% y 87% al patógeno. En base a los resultados obtenidos en el ensayo de campo mostró que el tratamiento T3: Trichoderma harzianum+ Trichoderma sp. + Trichoderma atroviride es más efectivo ...

  9. Estudo do equilíbrio líquido – líquido em sistemas aquosos bifásicos formados por polietilenoglicol (1500, 3350 e 6000), sais de fosfato e água em diferentes temperaturas

    OpenAIRE

    Silva, Angélica Siqueira da

    2014-01-01

    No presente trabalho, foram estudados os dados de equilíbrio de fases dos sistemas aquosos bifásicos formados por polietilenoglicol (1500, 3350 e 6000) + fosfato monobásico e dibásico de sódio (pH 7) + água. Estudou-se o efeito da variação da temperatura (10, 25 e 40°C) bem como da massa molar sobre os dados de equilíbrio. Para o PEG 3350 observou-se um aumento da área bifásica com diminuição da temperatura, mostrando que a formação do sistema aquoso bifásico é exotérmico. Para o PEG 1500 e 6...

  10. Preparación, caracterización y aplicación como plataformas bioactivas de materiales compuestos formados por politiofeno y colágeno

    OpenAIRE

    Illera Bautista, Cristina

    2014-01-01

    El objetivo del trabajo es preparar mezclas compuestas por una proteína, en este caso colágeno tipo I, y un polímero conductor, poli[2,2’-(3-metil-acetato)tiofeno] (P3TMA), un derivado soluble de politiofeno. Para ello se ensayan diferentes metodologías para la preparación de las películas, tales como drop-casting y spin-coating. La proporción de proteína en las mezclas de colágeno/P3TMA es baja, variando entre el 5% y el 0,5% dependiendo de la técnica de preparación empleada, debido a la...

  11. Estudo do comportamento e da resistencia das vigas mistas aço-concreto constituídas por perfis formados a frios e lajes pré-fabricadas

    OpenAIRE

    Luciano Augusto Figueiredo de Oliveira

    2001-01-01

    O presente trabalho tem como objetivo apresentar os resultados da pesquisa teórico-experimental, realizada no Laboratório de Análise Experimental de Estruturas, do Departamento Engenharia de Estruturas da Escola de Engenharia/UFMG, sobre o comportamento e a resistência de vigas mistas aço-concreto empregando-se perfis metálicos formados a frio e pré-lajes de concreto armado, visando sua aplicação nos sistemas construtivos para edificações residenciais de 04 pavimentos. Para possibilitar a aná...

  12. 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

  13. The experience of a solidarity incubation project formed by mental health users A experiência de incubar um empreendimento solidário formado por usuários de saúde mental

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    Priscila Tagliaferro Rojo

    2012-08-01

    Full Text Available Introduction: From the articulation of mental health and social economy actors in a city of São Paulo, a solidarity group was created trough an incubation process using the partnership between the Center for Psychosocial Care and the Regional Incubator for Popular Cooperatives. The incubation is an advisory process for groups in the formation and consolidation of economic enterprises. The incubation method of this incubator comprises sixteen classes of behavior. Objective: To describe and reflect on the process of incubation performed by this group. Materials and Methods: In this qualitative research, we used multiple data sources, such as reports, projects, meeting minutes, among others. All ethical guidelines were followed. Results: From the analysis of the documents, it was found that is relevant the building of partnerships and the community involvement in the process of social inclusion by the work of mental health users. We emphasize the importance of the technicians’ presence in the group, understanding it as the right to health protection. It should be considered that there are still challenges to achieve self-management and operational users in the transformation of workers/members. Conclusions: It is expected that this research contribute to the reflection of other experiences and also to the knowledge on incubation methodology in mental health.Introdução: Da articulação dos atores da saúde mental e da economia solidária de um município paulista foi criado um grupo solidário, em processo de incubação por meio de parceria entre o Centro de Atenção Psicossocial e uma Incubadora de Cooperativas Populares. A incubação é um processo de assessoria a grupos para formação e consolidação de empreendimentos econômicos. O método de incubação dessa incubadora compreende dezesseis classes de comportamentos. Objetivo: Descrever e refletir sobre a experiência de incubação desse grupo. Materiais e Métodos: Nesta pesquisa

  14. 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...

  15. Inducción del cierre apical en el diente con necrosis pulpar y el ápice no formado

    OpenAIRE

    Canalda Sahli, Carlos

    1988-01-01

    Se efectúa una revisión del proceso de apicoformación en dientes con necrosis pulpar y ápice no formado, analizando el mecanismo de cierre apical inducido por el hidróxido de calcio y otras substancias, así como la histopatología del mismo.

  16. 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...

  17. Chemical sanitizers to control biofilms formed by two Pseudomonas species on stainless steel surface Sanificantes químicos no controle de biofilmes formados por duas espécies de Pseudomonas em superfície de aço inoxidável

    Directory of Open Access Journals (Sweden)

    Danila Soares Caixeta

    2012-03-01

    Full Text Available The biofilm formation of Pseudomonas aeruginosa and Pseudomonas fluorescens on AISI 304 stainless steel in the presence of reconstituted skim milk under different temperatures was conducted, and the potential of three chemical sanitizers in removing the mono-species biofilms formed was compared. Pseudomonas aeruginosa cultivated in skim milk at 28 °C presented better growth rate (10.4 log CFU.mL-1 when compared with 3.7 and 4.2 log CFU.mL-1 for P. aeruginosa and P. fluorescens cultivated at 7 °C, respectively. Pseudomonas aeruginosa formed biofilm when cultivated at 28 °C. However, only the adhesion of P. aeruginosa and P. fluorescens was observed when incubated at 7 °C. The sodium dichloroisocyanurate was the most efficient sanitizer in the reduction of the adhered P. aeruginosa cells at 7 and 28 °C and those on the biofilm, respectively. The hydrogen peroxide was more effective in the reduction of adhered cells of P. fluorescens at 7 °C.A capacidade de adesão e formação de biofilme por Pseudomonas aeruginosa e Pseudomonas fluorescens em aço inoxidável AISI 304, na presença de leite desnatado resconstituído sobre diferentes temperaturas foi conduzido e o potencial de três sanificantes químicos na remoção de biofilmes monoespécies foi comparado. Pseudomonas aeruginosa cultivada em leite desnatado a 28 °C apresentou melhor crescimento (10,4 log UFC.mL-1 quando comparado com 3,7 and 4,2 log UFC.mL-1 para P. aeruginosa e P. fluorescens cultivadas a 7 °C, respectivamente. Pseudomonas aeruginosa formou biofilme quando cultivada a 28 °C. Contudo foi observado somente adesão de P. aeruginosa e P. fluorescens quando incubada a 7 °C. O dicloroisocianurato de sódio foi o sanificante mais eficiente na redução de células aderidas e em biofilme de P. aeruginosa a 7 e 28 °C, respectivamente. O peróxido de hidrogênio foi o mais eficiente na redução de células aderidas de P. fluorescens a 7 °C.

  18. 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.

  19. Método simple para determinar el módulo de Young dinámico a partir de una excitación por impacto, aplicado a morteros de cal y cemento

    OpenAIRE

    Rosell, J. R.; Cantalapiedra, I. R.

    2011-01-01

    El presente trabajo muestra un método simple para determinar el módulo de Young dinámico (MOE) a partir de pequeñas perturbaciones mecánicas producidas a probetas de mortero de cal y de cemento, correlacionando los resultados obtenidos con las correspondientes mediciones realizadas con otras técnicas. El procedimiento sigue básicamente las instrucciones fijadas en la norma UNE-EN ISO 12680-1 de productos refractarios, pero aplicándolo a probetas normalizadas RILEM 4x4x16 de morteros confec...

  20. 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....

  1. 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...

  2. 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...

  3. 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

    Full Text Available JUSTIFICATIVA E OBJETIVOS: A cal sodada desde o início do seu uso sempre apresentou algumas complicações que resultaram em dificuldade na sua aplicabilidade. No entanto, devido as grandes vantagens que oferecia em relação a redução do fluxo de gases frescos, despoluição da sala de cirurgia e umidificação do sistema de inalação e via aérea, fizeram com que continuassem as pesquisas para que pudesse ser melhorada e corrigida de forma que a continuidade da sua utilização fosse assegurada. Atualmente existe o problema da desidratação com elevação da temperatura e da degradação metabólica dos anestésicos halogenados que necessitam de cuidados especiais para evitar a formação de produtos tóxicos. CONTEÚDO: Existe uma reação em cadeia a partir da cal sodada desidratada ou ressecada com baixos volumes percentuais de água. Há aumento da temperatura, maior absorção de anestésico halogenado para o interior do granulo de cal em seguida maior degradação metabólica das moléculas destes agentes e conseqüentemente a produção de substâncias tóxicas como o Composto A pela reação dos hidróxidos com o sevoflurano. Há também formação de monóxido de carbono produzido da mesma forma pela reação entre os halogenados e as bases fortes da cal. O composto A é nefrotóxico e o monóxido de carbono leva a hipóxia e alterações graves da coagulação do sangue. Além dos cuidados para a hidratação da cal sodada é possível usá-la sem conter as bases fortes como os hidróxidos de potássio e de sódio, contendo apenas hidróxido de cálcio para evitar excessivo aumento da temperatura e grande degradação metabólica dos halogenados sem prejudicar a absorção do dióxido de carbono. CONCLUSÕES: Deve-se ter o cuidado em usar a cal sodada mais recente possível e quando ela fica exposta ao meio ambiente (ar seco por muitas horas como por exemplo em um final de semana (mais de 48 horas é recomendável colocar

  4. 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

  5. Proposta de um método para atingir a manufatura responsiva na indústria de calçados: implantação e avaliação por meio de uma pesquisa-ação Proposal of a method to achieve responsive manufacturing in the footwear industry: implementation and assessment through research-action

    Directory of Open Access Journals (Sweden)

    Flavio Cesar Faria Fernandes

    2012-01-01

    Full Text Available Várias estratégias (Manufatura em Massa Atual, Manufatura Enxuta, Manufatura Responsiva, Customização em Massa, Manufatura Ágil,... propõem-se a auxiliar as empresas na gestão da manufatura. O foco deste artigo é a Manufatura Responsiva (MR. O contexto em que se aplica a MR é a alta variedade de produtos feitos sob encomenda tendo como um fator crítico de sucesso o tempo de resposta (diferença entre a data em que o cliente recebe o atendimento de seu pedido e a data em que o cliente faz o pedido que deve ser o menor possível, porém sem deteriorar os níveis de produtividade e qualidade. No Brasil, a MR é pouco conhecida e não utilizada de maneira formal. O objetivo deste estudo é propor e avaliar, por meio de uma pesquisa-ação, uma sistemática para atingir a MR em fábricas de calçados. Para a grande maioria dos fabricantes de calçados, a redução do tempo de resposta representa um importante trunfo competitivo. Dentre os resultados obtidos da implantação do método proposto na empresa Kidy, destacam-se: redução substancial do tempo de resposta, reduções de custos produtivos e de mão de obra, aumento nas quantidades de pedidos atendidos dentro dos prazos e diminuição dos índices de retrabalho.There are several strategies (Modern Mass Production, Lean Manufacturing, Responsive Manufacturing (RM, Mass Customization, Agile Manufacturing, etc that can be used to aid manufacturing management in enterprises. This paper focuses on Responsive Manufacturing. RM is applied in environments of high variety of made-to-order product, in which response time (the elapsed time between the end of an inquiry and the beginning of a response is a critical factor and should be minimum without diminishing quality and disrupting productivity. In Brazil, RM is not well known or frequently used. The objective of this study is to propose and evaluate, by means of an action-research, a method to achieve RM in the footwear industry. For the

  6. O estudante de Medicina e o médico recém-formado frente à morte e ao morrer

    Directory of Open Access Journals (Sweden)

    Gustavo Nader Marta

    Full Text Available A compreensão do papel da morte como uma condição intrínseca e inegável da vida sempre foi de grande relevância para o mundo ocidental, levando a diferentes atitudes, especialmente entre aqueles que precisam encarar a morte como parte de sua rotina profissional. Isto é particularmente aplicável aos médicos, que, muitas vezes, se acham diante da responsabilidade de tomar decisões sobre as condições de saúde e a vida de seus pacientes. Os objetivos deste estudo foram verificar o comportamento do estudante de Medicina e do médico recém-formado diante da morte e do morrer, identificar as condições e deficiências da relação médico-paciente-morrer-morte, comparar tais posturas entre os estudantes de Medicina e os médicos recém-formados, e propor atividades que possibilitem a sensibilização quanto aos processos internos com base em teoria, prática e desenvolvimento pessoal. Isso foi feito por meio da aplicação de questionários aos 100 alunos do terceiro ano e aos 120 residentes do CCMB-PUC-SP.

  7. Análisis de mejora en la productividad del proceso de fabricación de rosquitas empleando un prototipo de formado de masa

    Directory of Open Access Journals (Sweden)

    Alvaro Humberto Velásquez Dávila

    2014-12-01

    Full Text Available Objetivos: Implementación de mejoras en la productividad del proceso de fabricación de rosquitas mediante el uso de un prototipo de máquina electromecánica de formado de tiras trenzadas para producir rosquitas. Métodos: En el proceso de fabricación del prototipo los diferentes componentes, como el largo y grosor del sin fin, la potencia de los moto reductores, la velocidad rotacional del tornillo y diferentes variables de operación, como temperatura de extrusión, humedad y temperatura inicial de la masas de rosquita, se modificaron a fin de encontrar las condiciones óptimas de operación para que la rosquita sea de excelente calidad y no varíe sus condiciones de sabor, forma y estructura reconocidas en el mercado. Resultados: Se diseñó un prototipo con un mecanismo de extrusión compuesto por un tornillo sin fin situado en una carcasa. En un extremo de dicha carcasa se ubica una tolva de alimentación de la masa de rosquita y por el otro se extruiría tiras por boquillas que al girarlas darían el trenzado de tiras requerido para el formado de la masa de rosquita. Se llevaron a cabo pruebas variando la humedad de la masa en 37, 30 y 26%, variando la temperatura de la masa y las revoluciones del tornillo sin fin. Conclusiones: Luego de las pruebas de humedad, temperatura y calidad, el mejor producto se obtuvo al utilizar una velocidad rotacional de 56 rpm, 26% de humedad y utilizando masa a 25° de temperatura. Asimismo, en términos económicos se ha logrado incrementar la productividad del negocio de rosquitas. Los costos de producción se han reducido en un 21% y el proyecto arroja un VAN positivo de S/. 7M.

  8. 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,

  9. 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...

  10. Balance de potencia del conjunto formado por el tractor New Holland 6610s y la sembradora v-20

    OpenAIRE

    Pedro R. Mayans-Céspedes; José R. Soca-Cabrera; Gilberto López Canteñs

    2009-01-01

    En el presente trabajo se reflejan los resultados de la prueba de tracción y potencia a la toma de fuerza de la sembradora V-204, formando conjunto con el tractor New Holland 6610s4. Para las pruebas se contó con los instrumentos, medios de medición e instalaciones del Centro Nacional de Estandarización de Maquinaria Agrícola, utilizándose la NMX "Método de evaluación de sembradoras y/o fertilizadoras de tracción mecánica con dosificador de disco" y la NC Máquinas agropecuarias y forestales, ...

  11. 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...

  12. 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...

  13. 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.

  14. 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...

  15. 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],...

  16. 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...

  17. 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

  18. 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...

  19. Inserção, renda e satisfação profissional de médicos formados pela Unesp

    Directory of Open Access Journals (Sweden)

    Albina Rodrigues Torres

    Full Text Available OBJETIVO: Avaliar a inserção profissional, o nível de renda e de satisfação de médicos formados na Faculdade de Medicina de Botucatu (Unesp assim como possíveis fatores associados a tais desfechos. MÉTODOS: Estudo transversal, tendo como população-alvo todos os médicos formados entre 1968 e 2005, utilizando-se um questionário autoaplicável. RESULTADOS: A taxa de resposta foi de 45%, 1.224 dos 2.864 questionários enviados por correio. A média de idade dos participantes foi de 46,5 anos (± 10,9 e 64,4% eram homens. A maioria (98,6% referiu exercer a profissão, residir no Estado de São Paulo (96,4%, ter feito residência (92,0% e frequentar eventos científicos regularmente (80,2%. Referiram morar em cidades do interior 70,4% e ter clínica privada 67,4% dos egressos. Renda mensal entre R$ 10 e 15 mil foi relatada por 28,4% e satisfação profissional grande ou muito grande por 66,1% deles. Nos modelos de regressão logística, mantiveram-se significativamente associados a maior renda: sexo masculino, ter clínica privada, ter filhos e estar profissionalmente satisfeito. Maior satisfação associou-se com menor idade e maior renda, fazer doutorado, considerar que foi bem preparado para a profissão, afirmar que faria Medicina novamente e avaliar positivamente sua qualidade de vida e saúde mental. CONCLUSÕES: A inserção profissional de ex-alunos é importante na avaliação institucional, devendo ser realizada regularmente para subsidiar as discussões sobre reforma curricular.

  20. 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...

  1. 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.)

  2. 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...

  3. 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.

  4. 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.

  5. 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...

  6. 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

  7. 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.

  8. Efeito da concentração de sacarose no biofilme dental formado in situ no desenvolvimento de carie

    OpenAIRE

    Carolina Patricia Aires

    2004-01-01

    Resumo: Tendo em vista que a relação entre concentração de sacarose e cárie não é bem estabelecida, o objetivo do presente estudo foi avaliar a acidogenicidade e a composição bioquímica do biofilme formado in situ na presença de diferentes concentrações de sacarose e a sua relação com a iniciação e a progressão da cárie dental. Desta forma, foi conduzido um estudo cego e cruzado, com 3 fases experimentais de 14 dias cada. Doze voluntários adultos utilizaram dispositivos intra-orais palatinos ...

  9. Caracterización de un material compuesto por suelo arenoso, ceniza de cáscara de arroz y cal potencialmente útil para su uso en pavimentación Characterization of a material comprised of sandy soil, rice husk ash and potentially useful lime in pavements

    Directory of Open Access Journals (Sweden)

    Leonardo Behak

    2008-04-01

    Full Text Available Se presenta una investigación de caracterización de una mezcla de suelo arenoso con ceniza de cáscara de arroz (CCA y cal. El objetivo fue estudiar las propiedades físicas y mecánicas de las mezclas, procurando encontrar una solución económica para pavimentos de bajo volumen de tránsito y resolver el problema ambiental de la disposición de la ceniza residual de la quema de la cáscara de arroz. El suelo arenoso fue extraído de las proximidades de Montevideo. Fue utilizada una CCA residual de la incineración de cascara, realizada en un horno de una planta de parboilización de arroz localizada en la Ciudad de Treinta y Tres. Se realiza un análisis de la influencia de diferentes mezclas de suelo con CCA y cal en la composición mineralógica mediante difractogramas de rayos-x, parámetros óptimos de compactación, CBR, resistencia a la compresión inconfinada y a la tracción diametral y durabilidadAn investigation of characterization of a sandy soil mixture with rice husk ash (RHA and lime is presented. Their objective was to study the physic and mechanic properties of the mixtures, trying to find an economical solution for low-volume transit pavements and to solve an environmental problem like is the deposition of the residual ash from de husk rice burning. The soil was extract in the nearness of Montevideo. A residual RHA of the husk incineration, carried out in an oven of the rice parboilization plant localized in Treinta y Tres City, was used. An analysis of the influence of different mixtures of soil with RHA and lime in the mineralogical composition by x-ray difractograms, optimum compaction parameters, CBR, unconfined compression and split tensile strength and durability is made

  10. 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

  11. 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

  12. 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…

  13. 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%, ...

  14. 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...

  15. EPOXIDACIÓN DE OLEÍNA DE PALMA CON ÁCIDO PEROXIACÉTICO FORMADO IN SITU

    Directory of Open Access Journals (Sweden)

    ERNESTO ZULETA S

    Full Text Available Este artículo presenta los resultados de un proyecto de investigación encaminado a evaluar las condiciones de producción de oleína de palma epoxidada mediante el método de ácido peroxiacético formado in situ. Los aceites epoxidados son sustancias químicas de gran importancia industrial, de uso directo como plastificantes, o como intermediarios en la fabricación de otros productos químicos de mayor valor agregado. Este trabajo realiza un aporte investigativo a nivel regional, brindando una alternativa de uso para la oleína de palma africana mediante su utilización en la obtención de un producto con alta potencialidad de producción y utilidad como son los aceites epoxidados. Bajo las condiciones de estudio, se pudo obtener una oleína de palma epoxidada con un porcentaje de oxígeno oxiranode 3,007%, valor comparable con el valor requerido para un aceite de soya epoxidado comercial según la normatividad nacional

  16. 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.

  17. 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],...

  18. 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],...

  19. 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],...

  20. 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],...

  1. 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],...

  2. 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],...

  3. 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],...

  4. 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],...

  5. 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],...

  6. 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],...

  7. 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],...

  8. 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],...

  9. 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...

  10. 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],...

  11. 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],...

  12. 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],...

  13. 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],...

  14. 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],...

  15. 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],...

  16. 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],...

  17. 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],...

  18. 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],...

  19. 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],...

  20. 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],...

  1. 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],...

  2. 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],...

  3. 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],...

  4. 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],...

  5. 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],...

  6. 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],...

  7. 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],...

  8. ' "~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' '.

  9. 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],...

  10. 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.

  11. 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...

  12. 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...

  13. PAPEL DE LOS HEMICANALES FORMADOS POR LA PANEXINA1 Y DEL ATP EXTRACELULAR DURANTE LA ADQUISICION DEL COMPROMISO MIOGENICO Y LA POTENCIACION DE LA CONTRACCION MUSCULAR ESQUELETICA ADULTA.

    OpenAIRE

    RIQUELME PEREZ, MANUEL ANTONIO; RIQUELME PEREZ, MANUEL ANTONIO

    2010-01-01

    En la ontogenia y estado adulto del músculo esquelético numerosas funciones 2+ dependen de incrementos de la concentracion intracelular de Ca 2- libre ([Ca ]'). Concordantemente, las células C 2C 12 de reserva (CR), modelo in vitro de células precursoras 110p.

  14. Estudo do papel do gene Rv1358 no estabelecimento e maturação dos biofilmes formados por bactérias do complexo Mycobacterium Tuberculosis

    OpenAIRE

    Vaz, Marta Helena Melo de Campos e Cunha

    2016-01-01

    Tese de mestrado, Biologia Molecular e Genética, Universidade de Lisboa, Faculdade de Ciências, 2016 A tuberculose é uma doença infeciosa de etiologia bacteriana, com uma incidência anual média superior a 9 milhões de casos e tendo sido associada à morte de 1.5 milhões de indivíduos só em 2014. Dentro do género Mycobacterium, o complexo Mycobacterium tuberculosis (MTC) engloba várias espécies patogénicas, fenotipica e genotipicamente relacionadas, nomeadamente Mycobacterium tuberculosis, o...

  15. Flow study in the formatted channel for two disks in rotation; Estudo do escoamento no canal formado por dois discos em rotacao

    Energy Technology Data Exchange (ETDEWEB)

    Barbosa, Marcos Pinotti

    1992-07-01

    Flow study in the formatted channel for two disks in rotation is discussed including the following main issues: flow description between disks in rotation; computational model; and numerical results. The parametric studies accomplished of the spacing between disks, of the diameter, and of the rotor angular speed allowed the influence analysis of these variables in the flow inside the channel and in the generated pressure difference. The disks rotation, evaluated through Reynolds' rotational number, is the main parameter that influences the pressure difference between channel entrance and exit. It verified although how much larger the rotation larger the pressure difference.

  16. Flow study in the formatted channel for two disks in rotation; Estudo do escoamento no canal formado por dois discos em rotacao

    Energy Technology Data Exchange (ETDEWEB)

    Barbosa, Marcos Pinotti

    1992-07-01

    Flow study in the formatted channel for two disks in rotation is discussed including the following main issues: flow description between disks in rotation; computational model; and numerical results. The parametric studies accomplished of the spacing between disks, of the diameter, and of the rotor angular speed allowed the influence analysis of these variables in the flow inside the channel and in the generated pressure difference. The disks rotation, evaluated through Reynolds' rotational number, is the main parameter that influences the pressure difference between channel entrance and exit. It verified although how much larger the rotation larger the pressure difference.

  17. Enzymes evaluation for the polymeric filter cake removal; Avaliacao de enzimas para remocao de reboco formado por fluidos polimericos de base agua

    Energy Technology Data Exchange (ETDEWEB)

    Kameda, Etel; Coelho, Maria Alice Z. [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Escola de Quimica; Langone, Marta A.P. [Universidade do Estado do Rio de Janeiro (UERJ), RJ (Brazil). Inst. de Quimica; Queiroz Neto, Joao C. de [PETROBRAS, Rio de Janeiro, RJ (Brazil). Centro de Pesquisas (CENPES)

    2004-07-01

    In the drilling wells in horizontal or complex configurations, the drilling fluid contact with the productive zone can reduce the productivity by fluid invasion in the borehole wall. Drilling fluids usually comprise natural polymers as starch and xanthan gum. These polymers are deposited as the filter-cake on the wellbore wall. A common approach to remove this filter-cake is the application of acids or strong oxidative solutions. However, these are non-specific species which will react with any encountered that is acid soluble or oxidizable. An alternative is the use of enzymatic preparations that are able to hydrolyze such polymers. The enzymes catalyze only certain specific substrates, are inherently environmentally friendly, the enzymatic degradation rate is slower than that achieved by the oxidative species, so the enzymes produces an uniform filter cake degradation. In this work, the kinetic behaviors of an enzymatic filter-cake breaker and a commercial thermo stable enzymatic complex were analyzed. Both kinetic profiles were very similar, as well as its electrophoresis analysis. The protein in each product showed identical molecular weight. The commercial enzymatic complex stability remained 58.56% of enzymatic activity after 30 days at 40 deg C. Stability at wellbore conditions can be considered similar for both products. At 65 deg C they showed the same enzymatic activity after 8 hours. After 3 hours at 80 deg C, the commercial enzymatic complex remained 29.89% of the initial activity and the filter-cake breaker 61.73%, while at 95 deg C remained 4.39% and 11.60% of the initial activity, respectively, after 15 minutes. (author)

  18. Preconceito na enfermagem: percepção de enfermeiros formados em diferentes décadas Prejuicios en enfermería: percepción de enfermeros formados en diferentes décadas Prejudice in nursing: perception of nurses educated in different decades

    Directory of Open Access Journals (Sweden)

    Elaine dos Santos Jesus

    2010-03-01

    Full Text Available Trata-se de estudo qualitativo, de natureza histórico-social, que teve como objetivos: conhecer e compreender as percepções de um grupo de enfermeiros, formados em diferentes décadas, acerca do preconceito e formas de enfrentamento, envolvendo a escolha da profissão, no período de formação universitária ou no exercício profissional. Utilizou-se a História Oral de Vida e a análise de conteúdo. O estudo foi aprovado pelo Comitê de Ética em Pesquisa da EEUSP. Desvelaram-se as seguintes categorias dos discursos dos sujeitos: manifestações de preconceito face à escolha profissional; preconceito percebido durante a graduação em enfermagem; as vivências profissionais acerca do preconceito. Em relação às formas de enfrentamento, os colaboradores disseram ser importante a divulgação do que é a enfermagem, bem como atuação com competência e o trabalho em equipe. Este estudo contribuiu para a compreensão das formas de enfrentamento das situações consideradas preconceituosas, possibilitando, assim, buscar estratégias de reconhecimento social e a valorização da profissão.Se trata de un estudio cualitativo, de naturaleza histórico-social, que tuvo como objetivos conocer y comprender las percepciones de un grupo de enfermeros formados en diferentes décadas, respecto del prejuicio y las formas de enfrentamiento, incluyendo la elección de la profesión, en el período de formación universitaria o en el ejercicio profesional. Se utilizó la Historia Oral de Vida y el análisis de contenido. Existió aprobación por parte del Comité de Ética en Estudios de la EEUSP. Se desprendieron las siguientes categorías de los discursos de los sujetos: manifestaciones de prejuicio frente a la elección profesional, prejuicio percibido durante la graduación en enfermería; las experiencias profesionales respecto del prejuicio. En relación a las formas de enfrentamiento, los colaboradores afirmaron la importancia de la divulgaci

  19. 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

  20. Mastitis bovina causada por Staphylococcus coagulasa negativos

    OpenAIRE

    Bonetto, César C.

    2014-01-01

    El presente Trabajo de Tesis se desprende como una línea de investigación del grupo de la UNRC dedicado al estudio de la problemática de la mastitis bovina tanto en aspectos básicos como aplicados con estudios genéticos, epidemiológicos y de virulencia de los principales microorganismos involucrados en la mastitis bovina. Staphylococccus coagulasa negativo (SCN) es un grupo bacteriano formado por varias especies que por lo general eran considerados flora oportunista de la piel y age...

  1. ANÁLISIS FITOLÍTICOS EN SUELOS FORMADOS SOBRE ANTIGUAS TERRAZAS DEL RÍO URUGUAY (COLÓN, ENTRE RÍOS: PRIMERA EVIDENCIA DE RETRACCIÓN DE LOS PALMARES DE BUTIA YATAY (MART.. BECC.

    Directory of Open Access Journals (Sweden)

    Patterer, Noelia I.

    2017-06-01

    Full Text Available Los palmares de Butia yatay (Mart. Becc. en el Parque Nacional El Palmar (Colón, Entre Ríos, son comunidades relictuales que se desarrollan sobre los suelos arenosos que pertenecen al orden de los Entisoles. Estos suelos constituyen las terrazas antiguas del río Uruguay. La serie de suelos Puerto Yeruá son suelos arenosos pardos formados sobre terrazas y poseen un mayor desarrollo pedológico. Se ha estudiado la composición fitolítica de la secuencia pedológica de esta serie de suelos con la finalidad de contribuir al conocimiento de la flora que acompañó el desarrollo de los mismos. Las asociaciones fitolíticas observadas reflejan el cambio de dos ciclos pedológicos, que dividen al perfil analizado en dos zonas demarcadas por la presencia de diferentes paleocomunidades: una de palmares asociados a un estrato herbáceo pobre y una superior de pastizales meso-megatérmicos con escasa presencia de microrestos afines a elementos arbóreos. El registro fitolítico descripto en el presente trabajo es el primer antecedente que muestra el posible punto de cambio en la fisonomía del paisaje y la retracción de los palmares de yatay en el área de estudio.

  2. 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.

  3. Adoção de Alianças Estratégicas por Empresas dos Pólos Calçadistas do Vale do Rio dos Sinos-RS e de Franca-SP: um estudo exploratórioAdoption of Strategic Alliances by Shoes Industries of the Vale do Rio dos Sinos-RS and Franca-SP clusters: an exploratory studyAdopción de Alianzas Estratégicas por Empresas de los Polos Calzadistas del Vale do Rio dos Sinos-RS y de Franca-SP: un estudio exploratorio

    Directory of Open Access Journals (Sweden)

    ALMEIDA, Lauro Brito de

    2008-03-01

    Full Text Available RESUMOA nova configuração ambiental das empresas, fruto da relativa abertura de mercado provocada pela globalização, tem se constituído em mais um desafio para assegurar a continuidade dos negócios. Estratégias competitivas têm sido implementadas visando superar tal desafio e, dentre elas, as alianças estratégicas têm se revelado uma alternativa viável. Nesse contexto, este artigo tem como objetivo investigar o grau de utilização de alianças estratégicas por médias e grandes empresas que compõem os pólos calçadistas do Vale do Rio dos Sinos (RS e de Franca (SP. A pesquisa, classificada como exploratória e descritiva, teve a participação de 54 empresas, sendo 33 do Vale do Rio dos Sinos e 21 de Franca, as quais responderam a um questionário elaborado com perguntas em sua maioria fechadas. A análise dos dados deu-se através da estatística descritiva, aplicando-se freqüência percentual relativa, identificando-se a representativa das respostas obtidas em relação ao conjunto. Principais conclusões: a maioria das empresas tem atividades conjuntas; as empresas estão mais próximas das alianças transacionais do que das estratégicas; as alianças com concorrentes são inexpressivas – predominam fornecedores e clientes; o controle do resultado das alianças é insuficiente; confiança e parceiro adequado são fatores determinantes.ABSTRACTThe new environment of the companies, result of the relative opening of the market caused by the globalization has set a new challenge to assure the continuity of the businesses. Competitive strategies have been implemented aiming to overcome such challenge and, amongst them, strategic alliances have shown to be a viable alternative. In this context, this article has as objective to investigate the degree of use of strategic alliances by the medium and large companies of the shoes industries located in clusters of Vale do Rio dos Sinos (RS and Franca (SP. This exploratory and

  4. 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.

  5. 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.

  6. Análisis de productos de corrosión de acero ,zinc, cobre y aluminio formados en clima polar antártico

    OpenAIRE

    Chico, Belén; Fuente, Daniel de la; Morcillo, Manuel; Almeida, E.; Joseph, Günter; Rivero, S.; Rosales, B.

    2002-01-01

    Este artículo presenta los resultados de caracterización de los productos de corrosión formados sobre acero, zinc, cobre y aluminio expuestos en estaciones de corrosión antárticas cercanas a la línea de costa, analizándose la influencia de las características singulares de este clima sobre la formación de los mismos. Los resultados se comparan con los obtenidos en atmósferas marinas de climas tropicales y templados.

  7. Análisis de mejora en la productividad del proceso de fabricación de rosquitas empleando un prototipo de formado de masa

    OpenAIRE

    Alvaro Humberto Velásquez Dávila

    2014-01-01

    Objetivos: Implementación de mejoras en la productividad del proceso de fabricación de rosquitas mediante el uso de un prototipo de máquina electromecánica de formado de tiras trenzadas para producir rosquitas. Métodos: En el proceso de fabricación del prototipo los diferentes componentes, como el largo y grosor del sin fin, la potencia de los moto reductores, la velocidad rotacional del tornillo y diferentes variables de operación, como temperatura de extrusión, humedad y temperatura inicial...

  8. 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...

  9. 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…

  10. 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

  11. 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

  12. 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...

  13. 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

  14. 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

  15. 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 ...

  16. 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.

  17. 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

  18. 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.

  19. 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)

  20. Mistura reativa de poliamida 6 e policarbonato: reatividade do copolímero formado "in situ" Polyamide 6 and polycarbonate reactive blends: reactivity of the copolymer formed "in situ"

    Directory of Open Access Journals (Sweden)

    Dilma A. Costa

    2004-01-01

    Full Text Available As misturas físicas de poliamida 6 (PA6 e policarbonato (PC processadas a 240 ºC, durante 10, 30 e 60 minutos formam um copolímero de PA6-PC. A alta temperatura e o longo tempo de processamento podem causar modificações nas propriedades dessas misturas e degradar o copolímero, originando grupos isocianato e subseqüentemente CO2 e grupos NH2 terminais. A quantidade de copolímero PA6-PC formado durante o processo de mistura é maior com o aumento da proporção de PC na mistura. As ligações uretânicas de polímeros termoplásticos exibem mais baixas estabilidades térmica e oxidativa, resultando no aumento da concentração de grupos terminais NH2. A reatividade dessas misturas foi investigada através do torque durante o processo de mistura, da titulação potenciométrica dos grupos NH2 terminais e por microscopia eletrônica de varredura.Polyamide 6 (PA6 and polycarbonate (PC blends processed at 240 °C, during 10, 30 and 60 minutes produced a copolymer of PA6-PC. The high temperature and long processing time can cause modifications on the properties of these blends and degradation of the copolymer. It can also form isocyanate groups and subsequently CO2 and NH2 "end groups". The amount of PA6-PC copolymer formed during the blending process was found to increase when the PC content is increased. The thermoplastic urethanes normally exhibit smaller thermal and oxidative stability, resulting in an increase in the concentration of NH2 terminal groups. The reactivity of the blends was investigated by monitoring the torque during the blending, potentiometer titration of NH2 terminal groups and scanning electronic microscopy (SEM.

  1. 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 ...

  2. Optimization by simulation and development of solar cells with aluminium paste rear emitter and diffusion in conveyor furnace; Otimizacao por simulacao e desenvolvimento de celulas solares com emissor posterior formado por pasta de aluminio e difusao em forno de esteira

    Energy Technology Data Exchange (ETDEWEB)

    Mallmann, Ana Paula

    2011-01-15

    Photovoltaic solar energy is the direct conversion of solar energy into electricity and it has low impact to the environment during electric energy production. The main device of this technology is the solar cell and silicon is the substrate most used. The solar cells are electrically connected and encapsulated in order to form the photovoltaic module. The aims of this thesis are to optimize, develop and to analyse n{sup +}np{sup +} solar cells processed in n type Si-PV-FZ and with aluminum rear emitter formed in belt furnace. The optimization of solar cells by simulation is an important step before the device development. The software PC-1D and another program developed using Visual Basic language were used. Considering a metal grid formed by evaporation technique in vacuum ambient an efficiency of 16.8 % may be achieved. With screen printed grid, 15.8 % efficient solar cells were obtained. From the simulation results it was found that the screen printing metallization may become more viable than evaporation technique because there is low difference in the efficiency and the screen printing is a simpler technique. The experimental optimization of silicon wafers texture process resulted in reflectance of 12 %. This value is typical for monocrystalline silicon with textured surface. Experimental optimization of phosphorus front surface field shows a sheet resistance of (36 {+-} 4) {omega}/ for this region. This region was formed in a thermal step in a conventional furnace with POCl{sub 3}. It was found that after the phosphorus diffusion occurred gettering to specific temperature and time. It was verified that the minority carrier lifetime in the final of processing is similar to the initial value. The influence of steps sequence of front silver paste firing and rear diffusion/firing aluminium paste, of surface passivation and the influence of dry air flow during the aluminium paste diffusion/firing, of aluminium paste diffusion/firing temperature and of belt speed under the fabricated devices electric characteristics were analysed. The aluminum rear emitter n{sup +}np{sup +} silicon solar cells resulted in 29 efficiency up to 9,5 %. The best solar cells were processed under 900 deg C to aluminium paste diffusion/firing and belt speed of 140 cm/min. The efficiency is limited by low values of V{sub OC} and FF reached. It was also verified that the local rear emitter formation results in solar cells with higher efficiency than those with homogeneous emitter. (author)

  3. 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

  4. Empregabilidade do profissional formado nos cursos superiores de tecnologia do CEFET-PR: estudo de caso em médias e grandes empresas da região norte do Paraná Empregabilidad del profesional graduado en los cursos superiores de tecnología: estudio de caso en las medias y grandes empresas de la región norte del Paraná Empregability of the graduates in the undergraduate courses of technology: study of case in medium-sized and large companies in the northern region of the state Paraná

    Directory of Open Access Journals (Sweden)

    Eurico Pedroso de Almeida Junior

    2007-09-01

    Full Text Available O presente trabalho discute a necessidade das empresas da região Norte do Paraná, por profissionais formados nos Cursos Superiores de Tecnologia. Trata-se de uma pesquisa exploratória que, em função dos procedimentos técnicos adotados, pode ser caracterizada como um estudo de caso. O método de pesquisa empregado foi o indutivo. Os resultados mostram que há por parte das empresas a necessidade por profissionais formados nos Cursos Superiores de Tecnologia, na maioria dos casos, ele atua dentro de sua área de formação, e sua convivência com outros profissionais formados nas áreas tecnológicas ocorre normalmente. Concluiu-se que o tecnólogo no ambiente produtivo é um profissional necessário e que colabora em várias frentes, principalmente em face às novas tendências tecnológicas, uma vez que o mesmo recebe conhecimento teórico e prático e pode contribuir eficazmente tanto com as empresas quanto com a sociedade.Esa investigación discute la necesidad de las compañías del área Norte de Paraná por profesionales formados en las Universidades de Tecnología. Es una investigación exploratoria que, por los procedimientos técnicos adoptados, puede caracterizarse como un estudio de caso. El método de la investigación usado fue el inductivo. Los resultados confirman que hay por parte de las compañías la necesidad de profesionales formados en las Universidades de Tecnología; en la mayor parte de los casos ellos actúan dentro de su área de formación específica, y su convivencia con otros profesionales formados en las áreas tecnológicas ocurre normalmente. La conclusión de la investigación presenta el tecnólogo en el ambiente productivo como un profesional necesario a colaborar en varios frentes, principalmente si pensamos en las nuevas tendencias tecnológicas, una vez que él recibe el conocimiento teórico y práctico y puede contribuir eficazmente tanto con las compañías en cuanto a la sociedad.The present paper

  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. 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...

  10. 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 ...

  11. 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.

  12. 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

  13. 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.

  14. 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 ...

  15. 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.

  16. 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...

  17. 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.

  18. 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.

  19. 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 ...

  20. 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.

  1. 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...

  2. 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.

  3. 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 ...

  4. 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

  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. Evolution of an alumina-magnesia/self-forming spinel castable. Part I: Microstructural features Evolução de um refratário de espinélio auto-formado de alumina-magnésia. Parte I: Aspectos microestruturais

    Directory of Open Access Journals (Sweden)

    D. Gutiérrez-Campos

    1999-06-01

    Full Text Available Refractories containing magnesium aluminate spinel (MgAl2O4 are materials for emerging technology in several applications like cement and steelmaking processes. In order to deep the understanding of these castables, this work presents the microstructural characteristics of an alumina-magnesia/self-forming spinel castable. Several variables such as MgO content, firing temperature and spinel formation are analyzed through XRD and SEM analysis. The results showed that the processes of spinel formation and nucleation are not strongly affected by the MgO content, but that the crystal growth is enhanced for samples with 6.0 wt% MgO. Hibonite (CA6 bonding in the castable matrix showed a needlelike structure that could increase hot properties of the material. MgO content in the castable seems to affect the hibonite development. The development of a self-forming spinel castable without any synthetic spinel grains appears to be promissory for optimum refractory linings.Refratários contendo espinélio de aluminato de magnésio (MgAl2O4 são materiais para tecnologia emergentes em várias aplicações tais como cimento e processos siderúrgicos. Com a finalidade de melhorar o entendimento destes refratários, este trabalho apresenta as características microestruturais de um refratário espinélio auto-formado de alumina-magnésia. Várias variáveis tais como teor de MgO, temperatura de queima e formação de espinélio são analisadas por meio de difração de raios X e microscopia eletrônica de varredura. Os resultados mostram que os processos de formação de espinélio e de nucleação não são fortemente influenciados pelo teor de MgO, mas que o crescimento de cristal é aumentado para amostras com 6.0% em peso de MgO. A ligação hibonita (CA6 na matriz do refratário mostrou uma estrutura tipo agulha que poderia melhorar as propriedades a quente do material. O teor de MgO no refratário parece influenciar o desenvolvimento da hibonita. O

  11. Chemical State of Radiobromine Formed by the Rb{sup 85}(n, {alpha}) Br{sup 82} Reaction; Etat Chimique Du Ra Diobrome Forme Par La Reaction {sup 85}Rb (n, {alpha}) {sup 82}Br; 0425 0418 041c 0418 0427 0415 0421 041a 041e 0415 0421 041e 0421 0422 041e 042f 041d 0418 0415 0420 0410 0414 0418 041e 0410 041a 0422 0418 0412 041d 041e 0413 041e 0411 0420 041e 041c 0410 , 041e 0411 0420 0410 0417 041e 0412 0410 041d 041d 041e 0413 041e 041f 0420 0418 0420 0415 0410 041a 0426 0418 0418 Rb{sup 85}(n, {alpha}) Br{sup 82}; Estado Quimico Del Radiobromo Formado Por La Reaccion {sup 85}Rb (n, {alpha}) {sup 82}Br

    Energy Technology Data Exchange (ETDEWEB)

    Vlatkovic, M.; Kauiic, S. [' ' Ruder Boskovic' ' Institute, Zagreb, Yugoslavia (Croatia)

    1965-04-15

    composes de rubidium examines. (author) [Spanish] En la presente memoria se estudia la distribucion quimica del radiobromo entre los estados de oxidacion superior (BrO{sup -}{sub 3}) e inferiores (Br{sup -}, Br{sub 2}, BrO{sup -}) producidos por la reaccion nuclear Rb{sup 85}(n, {alpha}) Br{sup 82} en cierto numero de solidos inorganicos que contienen rubidio. Los autores irradiaron con neutrones de 14 MeV procedentes de un generador neutronico (T+d) muestras secas de Rb{sub 2}SO{sub 4}, Rb{sub 2}S{sub 2}O{sub 8}, RbMnO{sub 4}, RbNO{sub 3}, Rb{sub 2}CO{sub 3} y RblO{sub 3}. En el caso del Rb{sub 2}SO{sub 4} irradiado a temperatura ambiente o a -195 Degree-Sign C, aproximadamente el 8% de la actividad total del {sup 82}Br aparece en la fraccion bromato y el resto en la fraccion bromuro. La irradiacion del RbMnO{sub 4} y del RbNO{sub 4} a temperatura ambiente produjo alrededor del 1% de actividad en el estado de oxidacion superior del bromo, mientras que en el caso del Rb{sub 2}S{sub 2}O{sub 8}, Rb{sub 2}CO{sub 3} y RbIO{sub 3}, la actividad solo pudo medirse en la fase bromuro. Observaron un ligero aumento de la actividad del bromato cuando el Rb{sub 2}SO{sub 4} irradiado con neutrones se calento a 250 Degree-Sign C. A temperaturas mas elevadas (hasta 500 Degree-Sign C), la actividad paso al estado de oxidacion inferior. El calentamiento del RbMnO{sub 4} y del RbNO{sub 3} irradiados no provoco ninguna oxidacion del radiobromo. Si bien la irradiacion previa del RbNO{sub 4} con dosis gamma de 22 Mrad no afecto la distribucion de los atomos de bromo de retroceso, el analisis del Rb{sub 2}SO{sub 4} previamente expuesto a los rayos gamma (55 Mrad) puso de manifiesto una actividad de bromato superior a la de las muestras que antes de la irradiacion neutronica solo se habian secado a 150 Degree-Sign C. En conclusion, los autores subrayan la importancia de la constitucion quimica del compuesto utilizado, como blanco y de los medios no isotopicos en lo que atane a la distribucion de

  12. 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

  13. Conhecimentos, habilidades e atitudes sobre a gestão dos formados de enfermagem de uma universidade pública brasileira Conocimientos, habilidades y actitudes sobre la gestión de los egresados de enfermería de una universidad pública brasileña Knowledge, skills, and attitudes towards management of nursing graduates of a Brazilian public university

    Directory of Open Access Journals (Sweden)

    Maria de Lourdes de Almeida

    2012-03-01

    Full Text Available Objetivo. Identificar nos formados de uma universidade pública brasileira os conhecimentos, habilidades e atitudes aprendidos durante a formação para a gestão em enfermagem. Metodologia. Investigação de tipo transversal realizada em 2010 na que participaram 37 formados do programa de enfermagem. Utilizouse um questionário para a tomada de informação que incluiu variáveis socioeconômicas e de conhecimentos, habilidades e atitudes relacionadas com as matérias de gestão recebidas durante a formação de pré-graduação; estas últimas variáveis foram medidas com perguntas com opções de resposta tipo Likert. Os dados foram processados e analisados em Excel. Resultados. os recém formados manifestam ter suficientes conhecimentos, consideram-se hábeis e com atitudes favoráveis no área de gestão; em mudança os formados com maior experiência trabalhista, ainda que consideram que têm suficiente conhecimento, sua habilidade é média e reportam uma atitude desfavorável para a gestão. Conclusão. Os conhecimentos, atitudes e habilidades do recém formado para a gestão são diferentes ao de maior experiência profissional. A prática profissional poderia fazer mudar a percepção dos enfermeiros frente à gestão.Objetivo. Identificar en los egresados de una universidad pública brasileña, los conocimientos, habilidades y actitudes aprendidos durante la formación para la gestión en enfermería. Métodología. Investigación de tipo transversal realizada en 2010 en la que participaron 37 egresados del programa de enfermería. Se utilizó un cuestionario para la toma de información que incluyó variables socioeconómicas y de conocimientos, habilidades y actitudes relacionadas con las asignaturas de gestión recibidas durante la formación de pregrado. Estas últimas variables fueron medidas con preguntas con opciones de respuesta tipo Likert. Los datos fueron procesados y analizados en Excel. Resultados. Los recién egresados

  14. 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.

  15. 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.

  16. Resposta de calâncoe a reguladores de crescimento

    Directory of Open Access Journals (Sweden)

    MARCELLE MICHELOTTI BETTONI

    2009-06-01

    Full Text Available Kalanchoe (Kalanchoe blossfeldiana é uma planta ornamental envasada de destaque na floricultura nacional. O mercado demanda que ela apresente um crescimento vigoroso, porte pequeno (máximo 21 cm de altura com, no mínimo, dez flores abertas por vaso. Para produzirem plantas de primeira qualidade, os produtores de kalanchoe utilizam reguladores vegetais inibidores da síntese de giberelina. O CCC (Cloreto de Chlormequat é um inibidor da síntese de giberelina pouco usado em kalanchoe, porém, em outras ornamentais, tem sido relacionado com a obtenção de plantas mais atrativas para o mercado consumidor, por serem mais compactas, com hastes mais fortes e folhas mais verdes. Entre os reguladores vegetais, a aplicação de citocinina tem sido relacionada com aumento do número de hastes e de botões florais. Visando a reduzir o porte e aumentar o número de flores por planta, esta pesquisa avaliou o efeito da aplicação em kalanchoe do inibidor de giberelina Tuval® (contendo 100g L-1 de CCC e do extrato da alga Ascophyllum. Nodosum (composto contendo citocinina natural, em três épocas diferentes. Os resultados obtidos demonstraram que o Tuval®, nas concentrações de 1000 e 2000 mg L-1, reduziu o porte de kalanchoe; entretanto, a redução não foi suficiente para que as plantas pudessem ser consideradas como de primeira qualidade, e o efeito do extrato de A. nodosum na concentração de2000 mg L-1 associado ao CCC não ficou caracterizado.

  17. 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.

  18. Aplicación del programa SICOMED_3D para el estudio de la consolidación de suelos: aplicación a escenarios de suelos formados por tres capas.

    OpenAIRE

    Tomás Ramírez de Arellano, Macarena

    2017-01-01

    Se realiza un estudio de la técnica de instalación de mechas drenantes verticales en suelos. Posteriormente, se obtendrá el modelo en red 3-D del problema y se implementará en un programa de cálculo. Finalmente, mediante dicho programa, se resolverán diversos casos reales que se le plantean. Universidad Politécnica de Cartagena

  19. Development of solar cells with back surface field made by aluminum paste and belt furnace diffusion; Desenvolvimento de celulas solares com campo retrodifusor formado por pasta de aluminio e difusao em forno de esteira

    Energy Technology Data Exchange (ETDEWEB)

    Marcolino, Juliane Bernardes

    2011-01-15

    Photovoltaics is based on the direct conversion of solar energy into electricity and is a promising alternative to diversify the world's energy matrix. This work aims to develop and analyse the deposition of Al paste by screen printing and firing/diffusion in a belt furnace to produce a BSF region in monocrystalline Si wafers. The diffusion of Al into the substrate was implemented by two different processes. In the first process the diffusion/firing of the Al paste and the firing of the Ag paste was carried out in independent steps. In this case, solar cells with an average efficiency ({eta}{sub average}) of 11.5 % and a maximum of 12.0 % were produced, but with the formation Al clusters in the back surface of the devices. In the second process firing/diffusion of such pastes was done on the same step. In this case, the best results were obtained for a firing/diffusion temperature of 860 deg C and belt furnace speed (V{sub E}) of 150 cm/min and also for 890 deg C and 180 cm/min. For the former parameters, {eta}{sub average} was 12.4 % and the maximum was 12.8 %. For the later, {eta}{sub average} was 12.5 % and the maximum was 12.6 %. Considering a temperature of 900 deg C and V{sub E} of 190 cm/min, {eta}{sub average} was 12.4 %. It was observed that minority carriers diffusion lengths were smaller than the thickness of silicon wafers. Open circuit voltages were 30 mV lower than that from similar cells fabricated at NT-Solar by using high purity Al deposited by e-beam evaporation indicating that the developed process produced low quality BSF. (author)

  20. Estudio del sistema regulador formado por la serotonina y sus receptores en las células troncales MSC aisladas de médula ósea humana. Adipogénesis.

    OpenAIRE

    González Méndez, Laura

    2014-01-01

    Tesis doctoral inédita, leída en Universidad Autónoma de Madrid, Facultad de Ciencias, Departamento de Biología Molecular. Fecha de lectura: 21/03/2014 En los últimos años se ha identificado a la serotonina como un regulador crítico de la masa ósea, regulando tanto directa como indirectamente la actividad de las células responsables del proceso de remodelación ósea, osteoclastos y osteoblastos. El presente trabajo muestra que las MSCs aisladas de la médula ósea humana, células precursoras ...

  1. Estabilidad de la glucosa oxidasa en sistemas amorfos formados por los disacáridos sacarosa, maltosa y trehalosa Glucose oxidase stability in amorphous systems formed by saccharose, maltose and trehalose disaccharides

    Directory of Open Access Journals (Sweden)

    Hans L. D. Valenzuela

    2007-01-01

    Full Text Available Glucose-oxidase (GOD, suffers conformational change during freeze-drying. In order to determine the protection level granted by amorphous matrices (AM of saccharose, maltose, trehalose and their combinations, the thermal inactivation constants (K D of GOD trapped in these systems were determined. For its evaluation, GOD samples were balanced at different water activities and heated up to 30, 50 and 70 ºC. The best AM found for GOD stability was saccharose-trehalose (5/10% p/v. The K D values (K D.10-4 at a w = 0.0 were 3 at 30 ºC and 6 at 70 ºC. For non-protected GOD under the same conditions these values were 48 at 30 ºC and 257 at 70 ºC.

  2. Adaptação, implantação e avaliação de uma proposta de manufatura responsiva para a indústria de calçados: pesquisa-ação.

    OpenAIRE

    Eduardo Gracia

    2005-01-01

    As empresas estão cada dia se estruturando para serem competitivas no mercado mundial. No ramo de calçados a busca por competitividade é ainda maior por ser um setor altamente dependente de mão-de-obra e seus produtos acompanharem a tendência da moda internacional, o que dificulta muito a organização interna, o planejamento e o controle da produção (PCP). Várias pesquisas vêm sendo feitas com objetivo de contribuírem para melhoria do setor e este trabalho vem complementar essas pesquisas e aj...

  3. Diseño de un sistema de modelado y supervisión para el mejoramiento del flujo de proceso actual en la etapa de alistamiento de platina, formado y curado de una empresa fabricante de sistemas de frenos

    OpenAIRE

    Rodriguez Escobar, Luisa KAren

    2015-01-01

    La automatización del proceso de Alistamiento, Formado y Curado de Platina se realizará en la empresa INCOLBEST S.A la cual es una compañía orientada hacia la fabricación de pastillas de frenos, que ha adoptado una filosofía de aseguramiento de calidad, administración de riesgos y mejora continua en sus de producción. [2] INCOLBEST S.A actualmente cuenta con inconvenientes en la ejecución de las órdenes de producción en las cuales es de considerable relevancia establecer la des...

  4. 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.

  5. 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...

  6. 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...

  7. 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...

  8. 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

  9. Bases anatômicas para o bloqueio anestésico do plexo braquial por via infraclavicular

    OpenAIRE

    Gusmão,Luiz Carlos Buarque de; Lima,Jacqueline Silva Brito; Prates,José Carlos

    2002-01-01

    JUSTIFICATIVA E OBJETIVOS: Procuramos demonstrar neste estudo a presença constante da fossa infraclavicular, com a finalidade de sua utilização como via de acesso para o bloqueio anestésico do plexo braquial por via infraclavicular. Visando solucionar o ponto onde os fascículos do plexo braquial podem ser localizados no interior da fossa, propusemos medidas a partir da face anterior da clavícula e do ângulo formado pelo encontro do músculo deltóide com a clavícula (ângulo deltoclavicular). A ...

  10. Percepções do fonoaudiólogo recém-formado quanto a sua formação, intenção profissional e atualização de conhecimentos Perceptions of newly graduated Speech and Language Pathologists regarding their academic formation, professional goals and knowledge update

    Directory of Open Access Journals (Sweden)

    Denise Guapyassú Meirelles da Silva

    2010-01-01

    Full Text Available OBJETIVO: Investigar as percepções do fonoaudiólogo recém-formado do estado do Rio de Janeiro quanto a sua formação, intenção profissional e busca por atualização de conhecimento. MÉTODOS: Participaram fonoaudiólogos graduados em cursos de formação no estado do Rio de Janeiro, nos anos 2005 e 2006. Foi aplicado um questionário constituído por dez perguntas fechadas, elaboradas para esta pesquisa e previamente verificadas por projeto piloto. Os dados foram submetidos a análise estatística com cruzamento de variáveis. RESULTADOS: Observou-se que a maioria dos fonoaudiólogos considerou-se atendida em suas expectativas e segura dos conhecimentos adquiridos (pPURPOSE: To investigate the perceptions of newly graduated Speech and Language Pathologists (SLP from the state of Rio de Janeiro regarding their academic formation, professional goals and search for knowledge updates. METHODS: SLPs graduated from universities located at the state of Rio de Janeiro during the years of 2005 and 2006 participated in the study. A questionnaire with ten closed questions, developed for the present study and validated through a pilot study, was applied. Data were statistically analyzed comparing different variables. RESULTS: It was observed that the majority of the SLPs interviewed considered that their expectations were met and felt safe about the knowledge acquired (p<0.001. These professionals wish to act mostly in clinics (89%, and intend to continue their studies through lato sensu programs (70%. Language was considered the area in which they received the best support during their training (68%, while Public Health was the area in which they considered to have received less support (72%, and this difference was statistically significant. Industry was considered the most difficult workplace to be accessed by SLPs (p<0,05. CONCLUSION: Newly graduated SLPs from the state of Rio de Janeiro considered to have met their expectations regarding their

  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. 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.

  13. 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.

  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. 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.

  16. 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...

  17. Influência da estrutura do catalisador a base de Zirconoceno na estereorregularidade e propriedades do polipropileno formado Influence of Zirconocene structure on polypropylene stereorregularity and properties

    Directory of Open Access Journals (Sweden)

    Mário R. Meneghetti

    1997-03-01

    Full Text Available RESUMO: Catalisadores de metalocenos com diferentes simetrias, cocatalisados por metilaluminoxanas (MAO, foram avaliados em diferentes temperaturas de polimerização do propileno. Os metalocenos com ponte interanelar, ou seja, o dicloreto de rac-etileno bis(h5-1-indenil zircônio, com simetria C2, e o dicloreto de isopropilideno(h5-ciclopentadienil(h5-9-fluorenil zircônio, com simetria Cs, produziram, respectivamente, polipropileno isotático e sindiotático. O grau de taticidade desses polímeros diminui com o aumento da temperatura de polimerização. Os metalocenos sem ponte, dicloreto de bis(h5-ciclopentadienilzircônio e bis(h5-indenilzircônio, em qualquer uma das temperaturas investigadas, produziram, somente, polipropileno atático. A estereorregularidade dos polímeros foram determinadas por Ressonância Magnética Nuclear de 13C.ABSTRACT: Metallocenes with different symmetries in combination with methylaluminoxane (MAO, have been investigated at different propylene polymerization temperatures. The metallocenes rac-ethylene bis(h5-1-indenyl zirconium dichloride, with C2 symmetry and isopropylidene (h5cyclopentadienyl(h5-9-fluorenyl zirconium dichloride, with Cs symmetry, produce isotactic and syndiotactic polypropylene respectively. The degree of tacticity of these polymers decreases with the increase of polymerization temperature. Only atactic polypropylene was formed with the unbridged zirconocenes bis(h5-cyclopentadienyl zirconium dichloride and bis(h5-indenyl zirconium dichloride at any temperature investigated. The polymer microtacticity was analysed by 13C NMR.

  18. 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

  19. Evaluación de la oxidación superficial de recubrimientos de Ti6Al4V obtenidos por recubrimiento por láser

    Directory of Open Access Journals (Sweden)

    Candel, J. J.

    2010-12-01

    Full Text Available It has been studied the influence of processing parameters on the superficial oxidation and mechanical properties of different coatings of Ti6Al4V. The high chemical reactivity of titanium powder, and the high temperature reached during laser processing, produces a great variety of colors in the oxides formed. This oxidation can have a detrimental effect on the behavior in service so that its evaluation is essential. Although the influence of processing on the color of the oxides formed is clear, there is no simple relationship to explain its mechanical properties. For this reason it has been applied a methodology based on microscopy, microanalysis wavelength spectroscopy (WDS and nanoindentation. The results indicate no significant differences in hardness and elastic modulus between two coatings with different colors of oxidation.

    Se ha estudiado la influencia de los parámetros de procesado sobre la oxidación superficial y propiedades mecánicas de diferentes recubrimientos de Ti6Al4V. La gran reactividad química del polvo de titanio junto a la elevada temperatura que se alcanza producen gran variedad de colores en los óxidos formados. Esta oxidación puede tener un efecto perjudicial sobre el comportamiento en servicio, por lo que su evaluación es fundamental. Aunque la influencia del procesado en el color de los óxidos formados es clara, no existe una relación sencilla que explique sus propiedades mecánicas. Por ese motivo se ha seguido una metodología basada en la microscopia, microanálisis por espectroscopia de longitud de onda (WDS y nanoindentación. Los resultados indican que no hay diferencias importantes en la dureza y módulo elástico entre dos recubrimientos que presentan diferentes colores de oxidación.

  20. 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.

  1. 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) ...

  2. 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 ...

  3. 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...

  4. 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.

  5. 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)

  6. 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

  7. 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

  8. 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.

  9. 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.

  10. 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.

  11. El apoyo social en la mujer maltratada por su pareja

    Directory of Open Access Journals (Sweden)

    María Pilar Matud Aznar

    2003-01-01

    Full Text Available En este estudio descriptivo mediante encuestas analizamos el apoyo social en tres grupos de mujeres maltratadas: uno formado por 66 mujeres que estaban conviviendo con el agresor, otro de 95 mujeres que, aunque habían sido maltratadas por su pareja, ya no convivían con el agresor, y un grupo de 39 mujeres que se encontraban en casas de acogida. Encontramos que las áreas donde las mujeres maltratadas percibían menos apoyo social eran en la laboral, económica y la familiar, y las personas que citaban con más frecuencia como fuente de apoyo fueron las amistades, los hijos y la familia. Las mujeres que estaban conviviendo con el agresor tenían menos apoyo social estructural y percibido que las mujeres que ya no convivían con él y que un grupo control de mujeres no maltratadas. El apoyo social correlacionaba negativamente con disfunción social y positivamente con autoestima. En el grupo de mujeres no maltratadas y en el que ya no convivía con el agresor el apoyo social percibido correlacionaba negativamente con sintomatología depresiva, somática y de ansiedad e insomnio.

  12. 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)...

  13. 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.

  14. 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

  15. Optimización y análisis del comportamiento de materiales tratados con cal en carreteras : aplicación a lodos de tuneladora y mezclas bituminosas

    OpenAIRE

    Movilla Quesada, Diana

    2012-01-01

    En esta tesis doctoral se presentan diversos estudios experimentales mediante los cuales se mejoran materiales utilizados en carreteras, tanto en terraplenes como firmes, añadiendo diferentes filleres. Esta tesis está constituida por una compilación de artículos centrados en una misma línea de investigación: Tratamiento de materiales con cal, como material de aportación. Este tratamiento abarca diversos tipos de materiales, desde lodos procedentes de tuneladora que no han sido dispuestos e...

  16. 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

  17. 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.

  18. 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.

  19. 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.

  20. 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.

  1. 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).

  2. 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.

  3. 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 ...

  4. Reflectância espectral e mineralogia de materiais formados sobre diabásio Spectral reflectance and mineralogy of soil materials developed from diabase

    Directory of Open Access Journals (Sweden)

    Celso Augusto Clemente

    2000-03-01

    Full Text Available O presente estudo teve por objetivo caracterizar diferentes fases de intemperismo de um solo e relacioná-las com seu comportamento espectral. Um perfil pedológico desenvolvido sobre diabásio da região de Capivari-SP, foi descrito morfologicamente, identificando-se seis fases de alteração. Os atributos analisados foram granulometria, composição química e mineralógica. A reflectância espectral do solo foi avaliada em laboratório através de espectrorradiômetro na faixa de 300 a 2500 nm. O perfil apresentou grau de intemperismo moderado, o que foi evidenciado pela alta relação silte/argila observada abaixo do horizonte Bi. Os horizontes subsuperficiais também apresentaram alto teor de nutrientes, especialmente P, Ca e Mg, que estavam relacionados com a presença em subsuperfície de saprolito com razoável reserva de minerais intemperizáveis. A evolução dos minerais primários iniciou pela formação de óxidos de ferro e de argilas 2:1, como vermiculita ou vermiculita-esmectita, que foram transformadas em caulinita e gibbsita em direção ao topo do perfil. Na medida em que ocorreram alterações na composição mineralógica no perfil, foram verificadas variações nos dados espectrais. Basicamente a reflectância foi influenciada diferenciadamente pela ocorrência de óxidos de ferro, diferentes tipos de argilas e minerais primários como piroxênios e magnetita.The aim of this study was to characterize soil materials with different degrees of weathering and then associate their composition with their spectral behavior. One pedological profile developed from diabase was studied in Capivari-SP, Brazil. The morphological description allowed to separate six phases of rock-soil alteration. Afterwards, granulometry, chemical and mineralogical analysis were carried out. The soil spectral reflectance was evaluated with a laboratory spectroradiometer using the wavelength range of 300 to 2500 nm. The profile was moderately weathered as

  5. 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.

  6. 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.

  7. 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.

  8. 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...

  9. 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.

  10. 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...

  11. 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...

  12. 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

  13. 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

  14. 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.

  15. 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.

  16. Evaluación en campo de plantas de ñame (Dioscorea alata L. obtenidas de los microtubérculos formados en Sistema de Inmersión Temporal

    Directory of Open Access Journals (Sweden)

    Manuel Cabrera Jova

    2010-01-01

    Full Text Available Los microtubérculos en algunas especies de plantas constituyen una importante alternativa como material vegetal de plantación. Se definió como objetivo de trabajo evaluar en campo la respuesta morfoagronómica de las plantas obtenidas de los microtubérculos de ñame formados en Sistema de Inmersión Temporal (SIT. Como variantes experimentales se plantaron tres categorías de microtubérculos, clasificados según su masa fresca (I. de 0,5 a 0,9 g; II. de 1,0 a 2,9 g; III. igual o mayor de 3,0 g, plantas in vitro previamente aclimatadas y corona de tubérculo. Se evaluó el efecto de la masa fresca de los microtubérculos sobre su brote, supervivencia y posterior desarrollo de las plantas derivadas de ellos en campo. Con los microtubérculos de ñame, con una masa fresca igual o superior a 3,0 g, se alcanzó el más alto porcentaje de brotación (91,30% y supervivencia de las plantas (96,50%, así como las mejores respuestas en los caracteres cuantitativos que se evaluaron en campo. Estos resultados confirmaron la importancia de la masa fresca de los microtubérculos para ser empleados como material vegetal de plantación directo en campo.

  17. Redes neuronales artificiales para la predicción de la calidad en soldadura por resistencia por puntos

    Directory of Open Access Journals (Sweden)

    Martín, O.

    2006-10-01

    Full Text Available An artificial neural network is proposed as a tool for predicting from three parameters (weld time, current intensity and electrode sort if the quality of a resistance spot weld reaches a certain level or not. The quality is determined by cross tension testing. The fact of reaching this quality level or not is the desired output that goes with each input of the artificial neural network during its supervised learning. The available data set is made up of input/desired output pairs and is split randomly into a training subset (to update synaptic weight values and a validation subset (to avoid overfitting phenomenon by means of cross validation.

    Se propone una red neuronal artificial como herramienta para predecir, a partir de tres parámetros operativos (tiempo de soldadura, intensidad de corriente y tipo de electrodo, si la calidad de una unión soldada por resistencia por puntos alcanza o no un cierto nivel. El entrenamiento de la red neuronal conlleva que la calidad se determine previamente mediante ensayos de tracción en probetas en cruz. El hecho de alcanzar o no el citado nivel de calidad constituye la respuesta objetivo que acompaña a cada entrada de la red neuronal artificial durante su aprendizaje supervisado. El conjunto de datos disponible está formado por pares entrada/salida objetivo y se divide de forma aleatoria en un subconjunto de entrenamiento (para actualizar los valores de los pesos sinápticos y en un subconjunto de validación (para combatir el fenómeno de overfitting mediante validación cruzada.

  18. Environmental behavior of soils and mixtures of soil-whitewash mud Comportamento ambiental de solos e misturas solo lama-de-cal

    Directory of Open Access Journals (Sweden)

    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.

  19. Celulitis por citomegalovirus

    Directory of Open Access Journals (Sweden)

    A. Ruiz Lascano

    2002-12-01

    Full Text Available Las lesiones cutáneas por citomegalovirus (CMV son infrecuentes y a menudo una manifestación tardía de una enfermedad sistémica, que generalmente anuncia un curso fatal. Comunicamos un caso de celulitis por CMV: una mujer de 70 años con trasplante renal efectuado 1 mes antes de la consulta, terapia inmunosupresora con ciclosporina A y metilprednisona. La paciente ingresó por fiebre, dolor e impotencia funcional en pierna derecha. Comprobamos la existencia de una placa de 8 por 4 cm eritematoedematosa. La tratamos con antibióticos sin mejoría, por lo que realizamos un estudio histopatológico de piel que mostró cambios citopáticos compatibles con infección por CMV. Los cultivos bacteriológicos y micológicos fueron negativos. La inmunohistoquímica específica para CMV y el estudio de reacción en cadena de la polimerasa (PCR de la biopsia de piel fueron positivas, al igual que la antigenemia. El tratamiento con ganciclovir produjo la mejoría del cuadro clínico. En la literatura revisada no hemos encontrado la celulitis como manifestación de enfermedad cutánea por CMV.

  20. 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

  1. 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.

  2. 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.

  3. 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

  4. 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.

  5. 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)

  6. 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.

  7. 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…

  8. 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.

  9. 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.

  10. 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.

  11. 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...

  12. 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...

  13. 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...

  14. 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...

  15. 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...

  16. 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...

  17. 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.

  18. 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/.

  19. 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.

  20. 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...

  1. 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.

  2. 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.

  3. 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...

  4. 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.

  5. 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.

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

    Directory of Open Access Journals (Sweden)

    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.

  7. 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

  8. Electrocardiografo por computadora

    OpenAIRE

    Tinoco Hernandez, Rosanna; Paredes Bejarano, Margarita; Romero Chaglia, Norman; Yapur Auad, Miguel Eduardo

    2009-01-01

    El presente trabajo trata sobrees el diseño y la implementación de un graficador de señales cardiacas por computadora, para lo cual diseñamos un circuito electrónico capaz de recibir la senal analógica proveniente de la actividad electrica del corazón , amplificarla, y luego convertirla en una señal digital para ser procesada por software y finalmente ser graficada, siendo posible así observar la señal cardiaca en el monitor de un computador como un tren de pulsos. Cabe destacar que par...

  9. 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.

  10. 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.

  11. Gasto energético e consumo calórico em adolescentes do sexo masculino com diferentes níveis de adiposidade corporal Energy expenditure and caloric intake among male adolescents with different levels of body adiposy

    Directory of Open Access Journals (Sweden)

    Diego Augusto Santos Silva

    2013-03-01

    Full Text Available Foram comparados o gasto energético e consumo calórico de adolescentes com diferentes níveis de gordura corporal. Estudo transversal com 40 adolescentes de 14 a 16 anos do sexo masculino. Os adolescentes foram divididos em dois grupos, cada um com 20 sujeitos, de acordo com o %G: baixo (%G 20%. O gasto energético foi mensurado por acelerômetros triaxiais e recordatório de atividades diárias. O consumo calórico foi avaliado pelo registro de 24 horas. Os jovens com baixo %G tiveram menor consumo calórico ( = 2408,1 ± 557,9 kcal.dia-1 em comparação aos jovens com alto %G ( = 2931,7 ± 679,2 kcal.dia-1, pEnergy expenditure and caloric intake were compared among adolescents with different levels of adiposity. A cross-sectional study was carried with 40 adolescent boys aged 14 to 16 years. The adolescents were divided into two groups of 20 subjects each, according to % body fat (%BF: low ( 20%. Energy expenditure was measured using accelerometer and daily activity diary. The dietary pattern was evaluated based on 24-h recall. Caloric intake was lower in adolescents with low %F ( = 2408.1 ± 557.9 kcal.day-1 compared to those with high %F ( = 2931.7 ± 679.2 kcal.day-1, p<0.05. In addition, they presented greater relative energy expenditure than adolescents with high %F (p<0.05. High %F adolescents showed larger caloric intake than expenditure, while the opposite was observed among low %F males.

  12. 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

  13. Competitividade internacional baseada em recursos: estudo da relação entre os recursos e as estratégias de internacionalização nas maiores empresas exportadoras do setor calçadista brasileiro.

    Directory of Open Access Journals (Sweden)

    Márcia Zabdiele Moreira

    2008-01-01

    Full Text Available A internacionalização de empresas se refere a uma estratégia para se obter maior presença no mercado internacional. Como as empresas precisam fazer uso de recursos estratégicos para sua inserção no mercado internacional, buscou-se responder: "Como se relacionam a evolução dos recursos estratégicos em relação às estratégias de internacionalização nas grandes empresas exportadoras do setor calçadista brasileiro?" Para a base teórica utilizou-se aclassificações dos recursos de Fahy (2002 e das estratégias de internacionalização de Sharma e Erramilli (2004. O estudo buscou resgatar o caráter dinâmico da Visão Baseada em Recursos. O método de pesquisa utilizado foi o quantitativo e de natureza explicativa. Os dados coletados referem-se ao período 2004 e 2005, com 15 grandes empresas exportadoras do setor calçadista brasileiro e foram analisados por meio de Cluster Analysis na entrada da internacionalização, na situação atual e em 2010. Concluiu-se que as empresas que utilizam estratégias de internacionalização mais complexas, no momento de entrada e no futuro, consideram mais estratégicas as capacidades organizacionais, depois os recursos tangíveis e por fim, os recursos intangíveis. Contudo, na situação atual, consideram mais estratégicas as capacidades organizacionais, depois os recursos intangíveis e por fim, os recursos tangíveis.

  14. Competitividade Internacional Baseada em Recursos – Estudo da Relação entre os Recursos e as Estratégias de Internacionalização nas Maiores Empresas Exportadoras do Setor Calçadista Brasileiro

    Directory of Open Access Journals (Sweden)

    Sérgio Henrique Arruda Cavalcante Forte

    2007-01-01

    Full Text Available A internacionalização de empresas se refere a uma estratégia para se obter maior presença no mercado internacional. Como as empresas precisam fazer uso de recursos estratégicos para sua inserção no mercado internacional, buscou-se responder: “Como se relacionam a evolução dos recursos estratégicos em relação às estratégias de internacionalização nas grandes empresas exportadoras do setor calçadista brasileiro?” Para a base teórica utilizou-se a classificações dos recursos de Fahy (2002 e das estratégias de internacionalização de Sharma e Erramilli (2004. O estudo buscou resgatar o caráter dinâmico da Visão Baseada em Recursos. O método de pesquisa utilizado foi o quantitativo e de natureza explicativa. Os dados coletados referem-se ao período 2004 e 2005, com 15 grandes empresas exportadoras do setor calçadista brasileiro e foram analisados por meio de Cluster Analysis na entrada da internacionalização, na situação atual e em 2010. Concluiu-se que as empresas que utilizam estratégias de internacionalização mais complexas, no momento de entrada e no futuro, consideram mais estratégicas as capacidades organizacionais, depois os recursos tangíveis e por fim, os recursos intangíveis. Contudo, na situação atual, consideram mais estratégicas as capacidades organizacionais, depois os recursos intangíveis e por fim, os recursos tangíveis.

  15. Indice por Materias

    Directory of Open Access Journals (Sweden)

    Montoya H Luz Marina

    1982-09-01

    Full Text Available Un índice es una lista de palabras o frases indicadores asociados que permite la ubicación de material al interior de un libro o una publicación, en este caso será por el nombre de la materia.

  16. Regulación por proteasas del canal de sodio sensible al amiloride (ENaC

    Directory of Open Access Journals (Sweden)

    Luciano Galizia

    2011-04-01

    Full Text Available El ENaC es un canal que permite el movimiento de Na+ desde el líquido luminal hacia las células en numerosos epitelios reabsortivos y también en otros tejidos como la placenta. ENaC juega un papel crucial en la homeostasis de los electrolitos y volumen de líquido extracelular. Es regulado por numerosas hormonas, incluyendo la aldosterona y bloqueado por el diurético amiloride. El ENaC está formado por tres subunidades homólogas α, β y γ que forman el poro por el cual se mueven los iones Na+. Dos factores regulan la actividad del ENaC. 1 el número de canales insertos en la membrana celular y 2 la probabilidad de apertura o tiempo en que se encuentra abierto el canal. El número de canales es el resultado de un balance entre su síntesis y degradación. La probabilidad de apertura depende de la proteólisis de zonas específicas de las subunidades α y γ por múltiples proteasas dentro de la célula y en el espacio extracelular. Entre las proteasas más estudiadas se encuentran la furina, prostasina, elastasa, plasmina y tripsina. Existen sustancias endógenas que bloquean la actividad de estas proteasas como la aprotinina, la bikunina y la nexina-1 y la expresión de las proteasas y sus inhibidores es regulada a su vez por la aldosterona, la tasa de movimiento de Na y el TFGβ. En este trabajo presentamos algunos ejemplos de esta regulación y su potencial papel en condiciones normales y en ciertas enfermedades como la fibrosis quística, renales e hipertensión.

  17. Parto inducido por embarazo prolongado Induced delivery in prolonged gestation

    Directory of Open Access Journals (Sweden)

    Mercedes Peña Abraham

    2006-12-01

    Full Text Available Se realizó un estudio retrospectivo, descriptivo, explicativo y longitudinal sobre el comportamiento de la inducción del parto por embarazo prolongado en el Hospital Gineco-Obstétrico "Justo Legón Padilla", en el período comprendido entre enero del 2004 y diciembre del 2005.El universo estuvo constituido por la totalidad de los nacimientos por embarazo prolongado que se produjeron en el período, donde el grupo estudio estaba exclusivamente formado por las gestantes con trabajo de parto inducido (n=104; se estudiaron variables de la madre, del nacimiento y del producto de la concepción y a los datos obtenidos se les aplicó porcentaje. La edad materna más frecuente fue la del grupo de 20 - 35 años (65,5%; predominaron las nulíparas (40,4%, la vía del parto que predominó fue la transpelviana (42,3%; todos con un índice de Bishop >7 puntos La causa más frecuente de cesárea fue el sufrimiento fetal agudo (23%; el embarazo prolongado no constituyó una causa importante de Apgar Bajo, en el parto distócico fue donde ocurrió el mayor número de morbilidad materna y neonatal (9,5%, no se encontró valor significativo en la macrosomía fetal y predominó el sexo femenino en los recién nacidos (65,3%.A retrospective, descriptive, explicative and longitudinal study about the behavior of the induction of labor in prolonged pregnancy was conducted at "Justo Legón Padilla" Gyneco-Obstetric Hospital during the period of January 2004 to December 2005. The whole sample was constituted by the totality of births in prolongad pregnancy during the period where the study group was exclusively formed by pregnants who underwent induced labor (n = 104.Variables of mother, birth and conception product were taken, and percentage method was applied to data collected. The group of most frequent maternal age was 20 - 35 (65,5%, prevailing nulliparous (40,4% and transpelvic labor (42,3%, having a Bishop index = 7. The most frequent cause of cesarean section

  18. 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

  19. 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...

  20. 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...

  1. 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.

  2. 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")…

  3. 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.

  4. 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

  5. Caracterização por FT-IR da superfície de borracha EPDM tratada via plasma por micro-ondas

    Directory of Open Access Journals (Sweden)

    Renata P. dos Santos

    2012-01-01

    Full Text Available A superfície de uma borracha de etileno-propileno-dieno (EPDM vulcanizada foi modificada via plasma por microondas, com gases Ar, Ar/O2, N2/O2 e N2/H2, tendo como objetivo melhorar as propriedades adesivas da superfície. A técnica FT-IR/UATR foi escolhida para caracterizar as superfícies após tratamento, pois apresentou menor interferência dos ingredientes da formulação da EPDM, dentre as técnicas analisadas (ATR/KRS-5 e Ge. Grupos oxigenados foram inseridos na superfície da amostra tratada, mesmo quando não foi utilizado o oxigênio, pois estes grupos foram formados quando a superfície ativada foi exposta à atmosfera. Já em tratamentos contendo N2, grupos oxigenados e possíveis grupos nitrogenados foram identificados por FT-IR. Redução nos valores do ângulo de contato, aumento no trabalho de adesão e aumento no ensaio de resistência ao descascamento (EPDM × Poliuretano foram observados após tratamento com Ar e N2/H2, resultando em melhora nas propriedades adesivas da superfície tratada.

  6. Análisis de competitividad y de mercado en la sustitución parcial o total de azúcar por otros edulcorantes en las empresas del sector de bebidas no alcohólicas en Colombia de 2009 a 2014

    OpenAIRE

    Lobelo Miranda, Yousef; Alvarado Clavijo, Marco

    2015-01-01

    Este trabajo analiza el impacto en la competitividad y el efecto en el mercado por la sustitución parcial o total de azúcar por otros edulcorantes calóricos y no calóricos en las empresas del sector de bebidas no alcohólicas en Colombia; su dinámica en las variaciones de los márgenes de rentabilidad a partir de la disminución en los costos de producción y las consecuencias en la competitividad sector de bebidas no alcohólicas. Las evidencias de estudios técnicos demuestran que edulcorantes co...

  7. Apendicitis por Paracoccidioides brasiliensis

    Directory of Open Access Journals (Sweden)

    Ana Beatriz MUÑOZ URRIBARRI

    2006-01-01

    Full Text Available La paracoccidioidomicosis es la micosis más prevalente en Sudamérica. La forma aguda afecta el sistema fagocítico mononuclear de niños y personas inmunocomprometidas. El compromiso gastrointestinal es frecuente y su patogenia implica diseminación hematógena y linfática. La linfadenomegalia abdominal causa obstrucción intestinal y abdomen agudo. En este artículo damos a conocer el caso de un niño con compromiso gastrointestinal por apendicitis. Este es el primer caso reportado de apendicitis por esta patología. (Rev Med Hered 2006;17:58-60.

  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. Avaliação de um programa de treinamento físico por quatro meses para crianças asmáticas

    OpenAIRE

    Silva,Cristiane Soncino; Torres,Lídia Alice Gomes Monteiro Marins; Rahal,Abel; Terra Filho,João; Vianna,Elcio Oliveira

    2005-01-01

    OBJETIVO: Avaliar condicionamento físico e força muscular de crianças asmáticas antes e depois de quatro meses de participação num programa de exercícios físicos. MÉTODOS: Dois grupos de crianças com asma moderada e idade entre oito e onze anos foram formados. Ambos realizaram testes pré e pós-treinamento físico, duas vezes por semana, por quatro meses, em sessões de 90 minutos, com exercícios em solo e em água. Orientações sobre asma, seu controle e tratamento foram fornecidos a ambos os gru...

  15. Análise exploratória de adoçantes de mesa via espectroscopia no infravermelho (FTIR) e análise por componentes principais (ACP)

    OpenAIRE

    Tozetto,Adriana; Demiate,Ivo Mottin; Nagata,Noemi

    2007-01-01

    Nos últimos vinte anos, o consumo de alimentos diet e light tem aumentado sistematicamente, o que tem propiciado o constante desenvolvimento de produtos desse gênero. Grande ênfase tem sido dada àqueles produtos que substituem sacarose por edulcorantes de baixos conteúdos calóricos ou não calóricos. Seguindo esta tendência, adoçantes de mesa têm sido desenvolvidos variando-se amplamente o veículo e o tipo de edulcorante empregado. Neste trabalho, a análise de componentes principais associada ...

  16. 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

  17. 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.

  18. Influência de um programa de iniciação científica de graduação no perfil profissional dos médicos recém-formados The Influence of an undergraduate scientific initiation programme onn the professional profile of new physicians

    Directory of Open Access Journals (Sweden)

    Raphael Joaquim Teles Cyrillo

    2010-09-01

    Full Text Available Introdução: Este trabalho estuda a influência de um programa de iniciação científica (PIC no perfil profissional de médicos recém-formados numa universidade pública brasileira. Objectivos e métodos: Avaliamos cinquenta e dois novos médicos arrolados em dois grupos pareados por sexo, idade e coeficiente de rendimento académico, diferindo apenas na sua participação no PIC. Dados acerca da situação profissional e socioeconómica foram obtidos, incluindo a escolaridade dos pais; a renda familiar média antes, durante e depois da realização do curso médico; a situação profissional actual; as aprovações em concurso público e os títulos e graus obtidos após a graduação. Resultados: Diferenças significativas foram observadas apenas nas aprovações em concursos públicos (p = 0,0098 e na renda familiar após a graduação (p = 0,02, maiores ambas no grupo não PIC. Apenas um médico obteve o título de mestre após a graduação, embora muitos deles em ambos os grupos tenham obtidos títulos técnicos e publicado ou apresentado artigos médicos em congressos. Conclusões: Aparentemente, a participação num PIC implica menor renda familiar e menor número de aprovações em concursos públicos. Entretanto, isto pode reflectir apenas uma etapa passageira de um longo processo. Uma nova pesquisa, já em curso, virá esclarecer esta última questão, agora que mais tempo já decorreu desde as suas graduações.Introduction: This paper studies the influence of a Scientific Initiation Programme (SIP on the Professional profile of new doctors from a Brazilian university. Aim and methods: Evaluate fifty-two new doctors divided into two groups matched by sex, age and academic performance and differing only in participation in the SIP. Professional and socioeconomic data were collected, including schooling of parents; average income before, during and after the medical course; current Professional situation; results of exams for civil

  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. Avaliação ambiental do setor calçadista sob a ótica da gestão de resíduos sólidos

    OpenAIRE

    Silva, Adriana Hoenisch da

    2016-01-01

    Com a crescente e efetiva preocupação com o meio ambiente, com o uso de recursos não renováveis, a gestão da reutilização e reciclagem e não por menos, da geração de resíduos, industriais, tem sido o interesse de pesquisas e projetos. O produto calçado utiliza em seu processo de fabricação diversos tipos de materiais e recursos. Assim, pode-se considerar o processo produtivo como uma interessante fonte de oportunidades do uso de ferramentas ambientais e estudos de caso para reduzir os impacto...

  1. MÃtodo para anÃlise do fluxo logÃstico fundamentado no mapeamento do processo e na gestÃo de indicadores estratÃgicos: uma proposta para o setor calÃadista

    OpenAIRE

    Jarbas Rocha Martins

    2014-01-01

    A indÃstria nacional calÃadista tem enfrentado o desafio de uma globalizaÃÃo inevitÃvel que acarreta uma concorrÃncia desleal com os paÃses asiÃticos. Esse cenÃrio sugere como uma ferramenta eficaz, a integraÃÃo entre as empresas para o seu fortalecimento e assim, responder a esta globalizaÃÃo atravÃs do aumento da sua capacidade competitiva, por meio do uso eficiente de inovaÃÃes tecnolÃgicas que tÃm impulsionado mundialmente o setor, como a tecnologia da informaÃÃo aplicada ao gerenciamento...

  2. Apendicitis por Paracoccidioides brasiliensis.

    OpenAIRE

    MUÑOZ URRIBARRI, Ana Beatriz; CHAPARRO DAMMERT, Eduardo; FERRUFINO LLACH, Juan Carlos; VASQUEZ FLORES, Luciola

    2012-01-01

    La paracoccidioidomicosis es la micosis más prevalente en Sudamérica. La forma aguda afecta el sistema fagocítico mononuclear de niños y personas inmunocomprometidas. El compromiso gastrointestinal es frecuente y su patogenia implica diseminación hematógena y linfática. La linfadenomegalia abdominal causa obstrucción intestinal y abdomen agudo. En este artículo damos a conocer el caso de un niño con compromiso gastrointestinal por apendicitis. Este es el primer caso reportado de apendicitis p...

  3. Meningitis por Streptococcus suis

    OpenAIRE

    Geffner Sclarsky, D. E.; Moreno Muñoz, R.; Campillo Alpera, Mª.S.; Pardo Serrano, F.J.; Gómez Gómez, A.; Martínez-Lozano, Mª.D.

    2001-01-01

    La infección humana por Streptococcus suis (S. suis) es una zoonosis, con un riesgo ocupacional conocido y que suele presentarse como meningitis purulenta, que tiene baja mortalidad y frecuentes secuelas de hipoacusia y ataxia. Se han publicado menos de 150 casos humanos desde el informe original de hace 30 años. Hay una reconocida distribución geográfica viviendo la mayoría de los afectados en el norte de Europa y el sudeste Asiático. En España se han comunicado dos pacientes con enfermedad ...

  4. Por mil devaluados pesos

    Directory of Open Access Journals (Sweden)

    Annie Rodríguez Collázos

    2013-03-01

    Full Text Available El estudio de lo popular y lo urbano hasta ahora se ha centrado en el comportamiento y en algunas relaciones de los habitantes con su entorno. “Por mil devaluados pesos. Publicidad popular y urbana”, pretende explorar las formas de publicidad, dispersas en diferentes espacios populares y urbanos en Bogotá, identificando esquemas y formas características de sus propios códigos comunicativos; se centran en un objeto de estudio consistente en las estrategias publicitarias y los códigos comunicativos en los mensajes publicitarios populares en las subculturas de San Victorino, 7 de Agosto y Sanandresito de San José.

  5. ESTUDO DO EFEITO DA TERAPIA FOTODINÂMICA ANTIMICROBIANA SOBRE A VIABILIDADE DO BIOFILME PRODUZIDO POR Candida albicans

    Directory of Open Access Journals (Sweden)

    Ana Paula Pinto

    2017-03-01

    Full Text Available A C. albicans é um fungo comensal e oportunista, que em casos de imunossupressão pode causar infecções e levar o indivíduo à morte. O biofilme produzido por C. albicans apresenta resistência a vários antifúngicos, pois é formado por uma matriz extracelular que dificulta a difusão dos fármacos. A Terapia Fotodinâmica Antimicrobiana (TFA é uma terapia que combina uma fonte de luz visível, um agente fotossensível (não tóxico e oxigênio. Esta interação promove a produção de espécies reativas de oxigênio (ERO’s, que alteram a permeabilidade da membrana celular e podem levar à morte celular de microrganismos. Foi realizada a TFA em biofilmes produzidos por C. albicans em diferentes fases de desenvolvimento. A fonte de luz utilizada foi um Light Emitting Diode (LED (630nm e o agente fotossenssível utilizado foi o Azul de Toluidina (AT. Os resultados demonstraram que tanto sobre a formação quanto sobre o biofilme produzido por C. albicans a TFA foi capaz de reduzir a viabilidade celular e alterar a morfologia, diminuindo a quantidade do número de células e de filamentos. Assim, a TFA demonstra ser uma potencial terapia antifúngica.

  6. 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

  7. EFECTO DE LA ADICIÓN DE CAL A PLANTACIONES DE JAÚL (Alnus acuminata EN ANDISOLES DE LA CUENCA ALTA DEL RÍO VIRILLA, COSTA RICA

    Directory of Open Access Journals (Sweden)

    Marlon Salazar

    2011-01-01

    Full Text Available Con el propósito de evaluar el impacto de adicionar cal a plantaciones de jaúl (Alnus acuminata (H.B.K. O. Kuntze en Andisoles de la cuenca alta del río Virilla, Costa Rica, se realizó el presente trabajo en 2 localidades: 1 Finca Hospicio: Ubicada en la localidad de Vista de Mar, cantón de Goicoechea, a una altitud de 1542 msmn; el suelo se clasificó como Typic Udivitrands y la plantación se estableció en el 2002. 2 Finca Dorval: Ubicada en la localidad de Las Nubes, cantón de Vásquez de Coronado, a una altitud de 1925 msnm; el suelo se clasificó como Thaptic Udivitrands y la plantación se estableció en 1997. Los tratamientos aplicados fueron 0 (testigo, 750, 1500 y 2250 kg.ha-1 de carbonato de calcio y magnesio (Dolomita, 1500 kg.ha-1 de carbonato de calcio (Calcita y 1500 kg.ha-1 de sulfato de calcio (Yeso. Se midieron el diámetro a la altura del pecho (DAP a 1,3 m, la altura total de los árboles (m y se estimó el volumen (V mediante la formula: V(m3=2,71828¿10,0557+ln(d*2,0369+0,9277 18*ln(h propuesta por Segura et al. (2005, en la cual d es el DAP en cm y h es la altura total en m. Al comparar las mediciones del diámetro a la altura del pecho, incremento medio anual en diámetro (IMA-DAP, altura total, incremento medio anual en altura (IMA-ALT, volumen total e incremento en volumen total, por dosis y fuentes de cal aplicada, se observó que ningún tratamiento causó diferencias estadísticas, en estas variables en ninguna de las 2 fincas comparadas ni entre épocas de medición. La adición de fuentes y niveles de cal no afectó significativamente las variables diámetro, altura y volumen. La falta de respuesta a las diferentes enmiendas comparadas demuestra que el suelo proporcionó suficiente Ca, Mg y S para asegurar el crecimiento óptimo del jaúl. Tampoco se encontró que los suelos mostraran problemas de acidez de magnitud tal que afectaran negativamente el crecimiento del jaúl.

  8. Caracterización de la resistencia a la antracnosis causada por Glomerella cingulata y productividad de cinco genotipos de mora (Rubus glaucus Benth.

    Directory of Open Access Journals (Sweden)

    Juan Manuel López-Vásquez

    2013-04-01

    Full Text Available En la vereda Betania, municipio de Guática, Risaralda (Colombia a 2160 m.s.n.m., se evaluaron cinco materiales promisorios de mora (Rubus glaucus Benth. por su resistencia a la antracnosis (Colletotrichum gloeosporioides y por su alta productividad, los cuales fueron previamente seleccionados por el grupo de Investigación en Biodiversidad y Biotecnología de la Universidad Tecnológica de Pereira. Diez meses después del establecimiento las plantas fueron inoculadas con diferentes cepas del hongo a una concentración de 1.2 x 10(6 conidios/ml de agua. Las variables evaluadas fueron incidencia (presencia o ausencia de lesiones en tallo, severidad (según escala de 1 a 9 y rendimiento (kg/planta. Los genotipos se clasificaron en tres grupos según su resistencia al patógeno y por su rendimiento: el primero, lo conformaron UTP-8 y UTP-7, los cuales produjeron 21 y 17.6 t/ha, respectivamente; el segundo grupo estuvo formado por el genotipo UTP-1 el cual produjo 14.3 t/ha, y el tercero por UTP-2 y UTP-4 con 9.8 y 7.9 t/ha, respectivamente.

  9. 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

  10. 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

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

    Directory of Open Access Journals (Sweden)

    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.

  12. 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.

  13. 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...

  14. 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...

  15. 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...

  16. 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.

  17. 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)

  18. 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.

  19. 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.

  20. 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.

  1. 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...

  2. 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...

  3. 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.

  4. 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

  5. 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.

  6. 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)

  7. Influência das características mecânicas da entressola e da estrutura do cabedal de calçados esportivos na percepção do conforto e na biomecânica da corrida

    OpenAIRE

    Andrea Naomi Onodera

    2016-01-01

    o presente estudo teve por objetivo investigar a influência de duas diferentes resiliências de materiais de amortecimento e de dois tipos de cabedais de calçados esportivos na cinemática e cinética de membro inferior e na percepção do conforto durante a corrida. Também investigamos as possíveis relações entre o conforto percebido e as variáveis biomecânicas capturadas. Para tal, foram avaliados 42 corredores recreacionais adultos, com no mínimo de um ano de experiência em corrida de rua,...

  8. Sepsis por shigella flexneri

    Directory of Open Access Journals (Sweden)

    César Cabrera C

    2005-04-01

    Full Text Available Se presenta un caso raro de sepsis por Shigella flexneri en una paciente de 45 años de edad quien estando hospitalizada para el estudio de un tumor cerebral, requirió el uso de manitol y dosis altas de corticoides; luego de ello presenta deposiciones líquidas con moco y sangre, desarrolla síndrome de respuesta inflamatoria sistémica, luego se aísla Shigella flexneri en el hemocultivo; recibió tratamiento antibiótico con ciprofloxacina. Se describen las características del caso y se comenta de acuerdo con la revisión de literatura.

  9. Portable exhausters POR-004 SKID B, POR-005 SKID C, POR-006 SKID D storage plan

    International Nuclear Information System (INIS)

    Nelson, O.D.; Keller, G.M.

    1997-01-01

    This document provides a storage plan for portable exhausters POR-004 SKID B, POR-005 SKID C, AND POR-006 SKID D. The exhausters will be stored until they are needed by the TWRS (Tank Waste Remediation Systems) Saltwell Pumping Program. The storage plan provides criteria for portable exhauster storage, periodic inspections during storage, and retrieval from storage

  10. 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.

  11. 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)

  12. 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 ...

  13. 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.

  14. Razones por las que los alumnos universitarios no utilizan las redes sociales

    Directory of Open Access Journals (Sweden)

    Zeynep Turan

    2013-08-01

    Full Text Available Aunque las redes sociales (los SRS, especialmente Facebook se han popularizado entre la juventud, hay algunos alumnos universitarios que no desean participar en ellas. Esta investigación explora las razones subyacentes por las cuales los alumnos universitarios no utilizan las redes sociales. El grupo experimental (n=20 estuvo formado por alumnos de licenciatura de entre 18 y 25 años, seleccionados mediante muestreo intencional. Se recogieron los datos en dos grandes universidades estatales de Turquía. Facebook fue seleccionado para contextualizar esta investigación, por ser una de las redes sociales más populares. Los métodos de investigación cualitativa se emplearon en la recogida y análisis de los datos. Entre las razones principales por las que no utilizan las redes sociales se encuentran su percepción como una pérdida de tiempo, o una herramienta innecesaria; las posibilidades de poder conllevar una adicción; violar las normas de privacidad, compartir información excesiva; e invocar la preocupación parental. Adicionalmente, los resultados indicaron que la mayoría de los alumnos no confió en sus amistades virtuales y que no les gustaba compartir fotografías ni opiniones políticas en línea. El haber identificado las actitudes hacia los SRS de los alumnos nousuarios nos ayudará a entender mejor las percepciones y experiencias individuales relacionadas con estos servicios sociales.

  15. 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...

  16. 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.

  17. 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.

  18. 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

  19. 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.

  20. 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.

  1. Control Multivariable por Desacoplo

    Directory of Open Access Journals (Sweden)

    Fernando Morilla

    2013-01-01

    Full Text Available Resumen: La interacción entre variables es una característica inherente de los procesos multivariables, que dificulta su operación y el diseño de sus sistemas de control. Bajo el paradigma de Control por desacoplo se agrupan un conjunto de metodologías, que tradicionalmente han estado orientadas a eliminar o reducir la interacción, y que recientemente algunos investigadores han reorientado con objetivos de solucionar un problema tan complejo como es el control multivariable. Parte del material descrito en este artículo es bien conocido en el campo del control de procesos, pero la mayor parte de él son resultados de varios años de investigación de los autores en los que han primado la generalización del problema, la búsqueda de soluciones de fácil implementación y la combinación de bloques elementales de control PID. Esta conjunción de intereses provoca que no siempre se pueda conseguir un desacoplo perfecto, pero que sí se pueda conseguir una considerable reducción de la interacción en el nivel básico de la pirámide de control, en beneficio de otros sistemas de control que ocupan niveles jerárquicos superiores. El artículo resume todos los aspectos básicos del Control por desacoplo y su aplicación a dos procesos representativos: una planta experimental de cuatro tanques acoplados y un modelo 4×4 de un sistema experimental de calefacción, ventilación y aire acondicionado. Abstract: The interaction between variables is inherent in multivariable processes and this fact may complicate their operation and control system design. Under the paradigm of decoupling control, several methodologies that traditionally have been addressed to cancel or reduce the interactions are gathered. Recently, this approach has been reoriented by several researchers with the aim to solve such a complex problem as the multivariable control. Parts of the material in this work are well known in the process control field; however, most of them are

  2. Proyecto de restaurante de comida sana baja en contenido calórico en Quito

    OpenAIRE

    Fiallos Ortega, Karla Alexandra

    2008-01-01

    La alimentación adecuada es aquella que cumple con las necesidades específicas del comensal de acuerdo a su edad, promueve en el niño y en el adolescente el crecimiento y desarrollo adecuados, y en los adultos y ancianos permite conservar o alcanzar el peso esperado para la talla y previene el desarrollo de enfermedades que se presentan por deficiencia o por exceso de nutrimentos. La alimentación correcta permite a las personas gozar de un pleno bienestar biológico, psicológico y social que e...

  3. 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

  4. 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.

  5. 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.

  6. 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

  7. 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.

  8. 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.

  9. 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.

  10. 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...

  11. 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...

  12. 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...

  13. 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...

  14. Mecanismos involucrados en la promoción de crecimiento axonal por la glia envolvente del bulbo olfatorio

    Directory of Open Access Journals (Sweden)

    Vilma C. Muñetón-Gómez

    2001-06-01

    Full Text Available La actividad que promueve el crecimiento de axones por la glia envolvente (GE del bulbo olfatorio depende de la expresión de diversas moléculas durante el desarrollo, la vida adulta y la reparación de lesiones nerviosas. Diversas moléculas tales como las neurotrofinas y sus receptores, los factores de crecimiento, las moléculas de adhesión celular, las moléculas de matriz extracelular y las moléculas asociadas con la mielinización son producidas por la glia del sistema olfatorio durante el desarrollo. Su expresión sostenida durante la vida adulta parece estar asociada con el reemplazo celular y la alta plasticidad de este sistema. A su vez, su expresión se involucra en procesos de reparación de lesiones mediados por trasplantes de glia. La migración de la GE, que acompaña axones en crecimiento, se observa durante el desarrollo y en procesos de regeneración luego de una lesión. Los trasplantes de,GE permiten la navegación de brotes regenerantes a través del tejido gliótico inhibidor formado luego de una lesión del sistema nervioso central. El propósito de esta revisión es profundizar en los mecanismos de actividad promotora de crecimiento axonal.

  15. Bibliotecas y libros en la Roma del emperador Calígula

    Directory of Open Access Journals (Sweden)

    José Antonio Rodríguez Valcárcel

    2007-01-01

    Full Text Available Este artículo trata de mostrar diversos aspectos de la política cultural en este ámbito por parte de este emperador.This article tries to show some aspects of cultural politics in this matter at the Caligula’s time.

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

    Directory of Open Access Journals (Sweden)

    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

  17. 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.

  18. 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

  19. 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

  20. 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.

  1. 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

  2. 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

  3. Relações retóricas estabelecidas por orações gerundiais adverbiais

    Directory of Open Access Journals (Sweden)

    Juliano Desiderato Antonio

    2012-01-01

    Full Text Available O objetivo deste trabalho é propor critérios para identificação das relações implícitas estabelecidas por orações gerundiais adverbiais em um corpus formado por elocuções formais (aulas e entrevistas. Para isso, tomam-se como fundamento teórico da pesquisa duas teorias funcionalistas, a Teoria da Estrutura Retórica do Texto (RST e a Gramática Discursivo-Funcional (GDF. Na visão da RST, além do conteúdo explícito veiculado pelas orações de um texto, há proposições implícitas que surgem das relações que se estabelecem entre partes do texto. Foram utilizados os parâmetros da GDF, factualidade, pressuposição, e as camadas dos níveis representacional e interpessoal em que ocorrem as orações para a identificação das relações retóricas estabelecidas pelas orações gerundiais adverbiais. Foram encontradas relações de meio, de resultado, de condição e de propósito, o que não significa que não se reconheça, neste trabalho, que outras relações como tempo (anterioridade, posterioridade, simultaneidade, concessão, causa, dentre outras, podem ser estabelecidas por orações gerundiais adverbiais. Os parâmetros da GDF demonstraram ser eficientes na identificação das relações.

  4. Determinación del contenido de compuestos de cromo en el cemento portland por espectrofotometría de absorción atómica. Segunda parte

    Directory of Open Access Journals (Sweden)

    Gaspar-Tebar, Demetrio

    1976-12-01

    Full Text Available Not availableEn un trabajo anterior (1 se ha puesto de manifiesto la importancia que tiene conocer el contenido de compuestos de cromo (III y de cromo (VI en el cemento portland, habiendo determinado dicho contenido en diversas 'muestras de distintos cementos, fabricados por la industria española, por espectrofotocolorimetría del complejo coloreado formado en la reacción que tiene lugar entre el cromo (VI y la s-difenilcarbacida, de tal modo que se puedan utilizar como patrones para estudiar y poner a punto un procedimiento rápido y preciso que utiliza la espectrofotometría de absorción atómica, objeto del presente artículo.

  5. Cuestión social, niñez y educación profesional. La obra salesiana y la opción por los más pobres. Córdoba (Argentina, 1905 - 1935

    Directory of Open Access Journals (Sweden)

    Nicolás D. Moretti

    2017-01-01

    Full Text Available A principios del siglo XX, la congregación salesiana llevó a cabo una obra educativa de fuerte contenido social, dedicada a la formación profesional y moral de niños y jóvenes en condición de riesgo, que conformaban una de las aristas más urgentes de la cuestión social. Por medio del análisis del grupo de alumnos formados en las aulas y talleres de la Escuela de Artes y Oficios salesiana, este trabajo aborda la experiencia de ese grupo de menores con la intención de aproximarse a las distintas situaciones de vulnerabilidad padecidas por una porción significativa de la población infantil en Córdoba durante la modernidad liberal.

  6. 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

  7. 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.

  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. 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.

  10. 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...

  11. 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.

  12. 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.

  13. 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.

  14. 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...

  15. Porøse materialer

    DEFF Research Database (Denmark)

    Hansen, Ernst Jan de Place

    2000-01-01

    Dette undervisningsnotat er en samling af noter, der refererer til den indledende del af kurset Materialmekanik og Porøse materailer på Insitut for Bærende Konstruktiner og Materialer (BKM).......Dette undervisningsnotat er en samling af noter, der refererer til den indledende del af kurset Materialmekanik og Porøse materailer på Insitut for Bærende Konstruktiner og Materialer (BKM)....

  16. 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.

  17. 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.

  18. 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.

  19. 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.

  20. 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.

  1. 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.

  2. 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.

  3. 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

  4. 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...

  5. Utilidad del Children's Embedded Figures Test en el Trastorno por Déficit de Atención con Hiperactividad

    Directory of Open Access Journals (Sweden)

    José Antonio López Villalobos

    2010-01-01

    Full Text Available El estudio analiza diferencias entre casos de Trastorno por Déficit de Atención con Hiperactividad (TDAH y controles en su modo global / analítico de procesar la información, buscando el mejor modelo basado en el Children's Embedded Figures Test (CEFT que permita predecir TDAH y analizando la validez de la prueba para el diagnóstico del trastorno. Se estudia una muestra de 100 casos de TDAH (criterios DSM-IV y 100 controles, entre 7 y 11 años, evaluados mediante el CEFT. Los controles fueron reclutados de forma aleatoria y emparejados según edad, sexo y zona sociodemográfica con los casos. Los casos presentan un estilo cognitivo medio significativamente mas dependiente de campo (d = 1.36, reflejando un modo de procesamiento mas global que los controles en todas las edades. El modelo de regresión logística que mejor predice TDAH está formado por edad, sexo y CEFT. La formulación derivada del modelo presenta sensibilidad del 80% y especifidad del 84%, tomando como prueba de referencia criterios DSM-IV para TDAH. Concluimos valorando que el CEFT presenta utilidad y adecuada validez de criterio para TDAH.

  6. APLICACIÓN AL ESTUDIO DE LA RESPUESTA MECÁNICA DE LA CAPA DE SUBBALASTO DE VÍAS FERROVIARIAS FORMADO POR UNA MEZCLA NO BITUMINOSA DE MATERIAL GRANULAR Y PARTÍCULAS PROCEDENTES DE NEUMÁTICOS FUERA DE USO.

    OpenAIRE

    Hidalgo Signes, Carlos

    2017-01-01

    Scrap tyres are a solid waste material which has been generated in large quantities over the last decades. In Spain, between 2000 and 2014 the number of vehicles increased by 30% and a further 3.5% increment is expected for the next fifteen years. Likewise, the number of scrap tyres is also expected to rise within the same order of magnitude. Taking into account the big volume of waste generated, proper disposal and reutilisation management is required, ever more so as scrap ty...

  7. 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.

  8. 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

  9. 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...

  10. Las cosas por su nombre

    OpenAIRE

    Storani, Emilia

    2017-01-01

    El artículo propone indagar sobre los modos y diferentes formatos que se utilizan tanto en la escritura como en la lectura, para articular con las luchas por la identidad de género. La Ley de Identidad de Género ha sido un puntapié clave para pensarnos a nosotros mismos culturalmente y para pensar a los demás. Pero, ¿cómo mencionamos, escribimos y leemos las diferentes identidades? La escritura, también es un mundo transformador para quienes bregan por una sociedad más libre y sin prejuicios....

  11. Ptose palpebral causada por Paquidermoperiostose

    Directory of Open Access Journals (Sweden)

    Patricia Regina de Pinho Tavares

    2014-08-01

    Full Text Available A paquidermoperiostose é uma síndrome caracterizada por acometimento cutâneo e ósseo, e em alguns casos ocorre comprometimento palpebral leve. É uma síndrome rara, idiopática ou hereditária, com provável herança autossômica dominante de penetrância variável. Descreve-se o caso de um paciente com ptose grave por paquidermoperiostose elucidando sua fisiopatologia e conduta cirúrgica aplicada.

  12. Diverticulitis yeyunal perforada por enterolito.

    OpenAIRE

    Marenco De la Cuadra, Beatriz; Gomez-Rosado, Juan-Carlos; Capitan-Morales, Luis-Cristobal; Valdés Hernández, Javier; Reyes-lopera, N.J. De los

    2012-01-01

    La diverticulosis yeyunal es una enfermedad adquirida rara. Casi el 60-70% keeps asymptomátic or Con síntomas crónicos inespecíficos, aunque puede presentarse como un abdomen agudo. La perforación debida a enterolitos es una causa extremadamente rara do complicación, y puede producirse por la impactación de ésta contra la pared intestinal. Presentamos caso de un varón de 82 años que acude a urgencias por un dolor súbito abdominal, difuso, con irritación peritoneal, leucocitosis con neutro...

  13. Mortalidad intrahospitalaria por accidente cerebrovascular

    OpenAIRE

    Federico Rodríguez Lucci; Virginia Pujol Lereis; Sebastián Ameriso; Guillermo Povedano; María F. Díaz; Alejandro Hlavnicka; Néstor A. Wainsztein; Sebastián F. Ameriso

    2013-01-01

    La mortalidad global por accidente cerebrovascular (ACV) ha disminuido en las últimas tres décadas, probablemente debido a un mejor control de los factores de riesgo vascular. La mortalidad hospitalaria por ACV ha sido tradicionalmente estimada entre 6 y 14% en la mayoría de las series comunicadas. Sin embargo, los datos de ensayos clínicos recientes sugieren que esta cifra sería sustancialmente menor. Se revisaron datos de pacientes internados con diagnóstico de ACV del Banco de Datos de Str...

  14. 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.

  15. 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....

  16. DESAJUSTE EDUCATIVO POR REGIONES EN COLOMBIA: ¿COMPETENCIA POR SALARIOS O POR PUESTOS DE TRABAJO?

    Directory of Open Access Journals (Sweden)

    Maribel Castillo Caicedo

    2007-06-01

    Full Text Available Este trabajo aporta una perspectiva del fenómeno de la sobreeducación, entendida como un desajuste por exceso, entre el nivel educativo alcanzado por el individuo y el exigido por el puesto de trabajo en el cual se desempeña; esto se debe a que existe una demanda laboral estrecha de puestos de trabajo para personas calificadas en Colombia. Se analizan las contribuciones empíricas existentes y el debate sobre las mismas; se examinan las teorías que permiten explicar la existencia de un desajuste educativo y se realiza una revisión de la literatura internacional y nacional sobre el tema. Adicionalmente, se plantean una serie de hipótesis para desarrollar un esquema que permita determinar el comportamiento del individuo en el fenómeno de la sobreeducación.

  17. Caracterização sensorial por analise descritiva quantitativa e analise tempo-intensidade de suco e de polpa de manga (Mangifera indica L.) adoçados com diferentes edulcorantes.

    OpenAIRE

    Daniela Cardoso Umbelino

    2005-01-01

    Resumo: O Brasil possui um grande potencial de produção de sucos de frutas tropicais, entre os quais destaca-se o suco de manga. Por outro lado, a preocupação com a saúde impulsionou a pesquisa e o desenvolvimento de alimentos de baixa caloria e adoçantes não calóricos. Os edulcorantes podem produzir características sensoriais indesejáveis, sendo necessário estudá-los, individualmente, no alimento ou bebida aos quais são adicionados. Este trabalho teve por objetivo estudar o comportamento do ...

  18. Consanguinidad por isonimia en Salta

    Directory of Open Access Journals (Sweden)

    Albeza, María V.

    2007-01-01

    Full Text Available Se estimó el coeficiente de parentesco por isonimia para localidades de la Puna, Valle Calchaquí y Valle de Lerma, a fin de evaluar diferentes factores evolutivos que podrían estar afectando la composición genética de la población. A partir de los apellidos de las parejas consignadas en fuentes primarias de información, se estimó la isonimia conyugal o marital, el coeficiente total Ft y sus componentes Fr (inbreeding azaroso y Fn (inbreeding no azaroso. De las localidades estudiadas, en la Puna se ha detectado sólo una pareja isónima en una de ellas, en el Valle Calchaquí, tres y ninguna en el Valle de Lerma. Tanto en el Valle Calchaquí como en el de Lerma, se han estimado valores negativos de Ft, y en la Puna se registran los valores más elevados. En las localidades estudiadas no se cumple el supuesto de transmisión patrilineal de apellidos por lo que los valores de Fr y por ende de Ft podrían estar subestimados. Es por ello que sería necesario contar con información desde otras vertientes metodológicas para corroborar, complementar y manejar cuidadosamente el análisis de los datos y las conclusiones que se obtienen.

  19. ¿Por qué enseñar a escribir usando técnicas de "focus on form"?

    Directory of Open Access Journals (Sweden)

    Lucha Cuadros, Rosa Mª

    2006-05-01

    Full Text Available El estudio que aquí presentamos aborda los siguientes temas: 1. Indaga acerca de si una enseñanza intensiva centrada en la forma induce o no a obtener resultados más positivos en la adquisición, al menos en la memoria a corto plazo, de estructuras lingüísticas significativas; en nuestro caso estructuras para comparar y expresar ventajas e inconvenientes. 2. Permite postular la efectividad del uso de herramientas informáticas para evaluar la “calidad de información” (Díaz y Ruggia 2004 de producciones escritas. Las herramientas utilizadas han sido, por un lado, el analizador-etiquetador Connexor, y, por otro lado, el software Childes (MacWhinney 1987, formado por diferentes programas informáticos, que permite la cuantificación automática de la frecuencia de aparición de categorías sintácticas elegidas previamente. En la investigación participaron dos grupos de estudiantes del programa Erasmus de la Universitat Pompeu Fabra. El primer grupo recibió una enseñanza intensiva centrada en la forma tras la cual realizó una tarea de expresión escrita consistente en la redacción de un texto expositivo. El segundo grupo realizó la misma tarea de expresión escrita, pero sin la previa instrucción centrada en la forma.

  20. Estudio por Drifts de la oxidación en óxido nitroso de un carbón activado

    Directory of Open Access Journals (Sweden)

    José de Jesús Díaz Velásquez

    2011-03-01

    Full Text Available Con el propósito de obtener materiales con propiedades superficiales diversas, en este trabajo se modificó un carbón activado mediante tratamiento térmico en una atmósfera de 20 % de óxido nitroso en nitrógeno a 500°C, por diferentes períodos de tiempo, al igual que en atmósferas de 5% de oxígeno en nitrógeno a 425°C por 600 minutos, y de 100% dehidrógeno a 950°C por 360 minutos. Para caracterizar la química superficial de los materiales tratados, se utilizó latécnica DRIFTS, cuyos resultados cualitativos muestran que los tratamientos con óxido nitroso tienen efectos mayoressobre la intensidad de los grupos superficiales formados. Estos cambios podrían estar asociados con la incorporacióndel nitrógeno dentro de la matriz del carbón. De acuerdo con los reportes de la literatura, la oxidación en fase gaseosadel carbón activado muestra principalmente grupos superficiales, tales como anhídridos carboxílicos, fenoles ycarboxilatos, lactonas y quinonas.

  1. Celulitis por citomegalovirus Cytomegalovirus cellulitis

    Directory of Open Access Journals (Sweden)

    A. Ruiz Lascano

    2002-12-01

    Full Text Available Las lesiones cutáneas por citomegalovirus (CMV son infrecuentes y a menudo una manifestación tardía de una enfermedad sistémica, que generalmente anuncia un curso fatal. Comunicamos un caso de celulitis por CMV: una mujer de 70 años con trasplante renal efectuado 1 mes antes de la consulta, terapia inmunosupresora con ciclosporina A y metilprednisona. La paciente ingresó por fiebre, dolor e impotencia funcional en pierna derecha. Comprobamos la existencia de una placa de 8 por 4 cm eritematoedematosa. La tratamos con antibióticos sin mejoría, por lo que realizamos un estudio histopatológico de piel que mostró cambios citopáticos compatibles con infección por CMV. Los cultivos bacteriológicos y micológicos fueron negativos. La inmunohistoquímica específica para CMV y el estudio de reacción en cadena de la polimerasa (PCR de la biopsia de piel fueron positivas, al igual que la antigenemia. El tratamiento con ganciclovir produjo la mejoría del cuadro clínico. En la literatura revisada no hemos encontrado la celulitis como manifestación de enfermedad cutánea por CMV.Cutaneous lesions in CMV infection are rare, often a late manifestation of systemic infection, and usually herald a fatal course. A 70 year-old woman received a kidney transplantation one month before consulting and immunosuppressive therapy that included cyclosporine A and methylprednisone. She complained of fever, local pain in her right leg, and an erythematous and swelling plaque. She was treated with intravenous antibiotics without improvement. A skin biopsy was performed and the tissue obtained was sent for bacterial and fungal cultures as well as for histological examination. Cultures were negative. The biopsy showed CMV cytopathic changes. Immunoperoxidase staining was positive for CMV and polymerase chain reaction (PCR testing revealed CMV DNA. She was treated with ganciclovir with resolution of the lesion. CMV cellulitis is a rare cutaneous manifestation

  2. Propiedades psicométricas del «Cuestionario para la Evaluación del Síndrome de Quemarse por el Trabajo» (CESQT en profesionales de la salud italianos: una perspectiva de género

    Directory of Open Access Journals (Sweden)

    Pedro R. Gil-Monte

    2017-12-01

    Full Text Available El objetivo de este estudio fue analizar las propiedades psicométricas del Cuestionario para la Evaluación del Síndrome de Quemarse por el Trabajo (CESQT en una muestra de profesionales de la salud italianos. La muestra estuvo formada por 695 participantes (453 profesionales de enfermería y 242 médicos. Según el género se identificaron 451 mujeres (64.9% y 244 hombres (35.1%. El CESQT está formado por 20 ítems que se distribuyen en cuatro dimensiones: Ilusión por el trabajo (5 ítems, Desgaste psíquico (4 ítems, Indolencia (6 ítems, y Culpa (5 ítems. La estructura factorial se analizó mediante análisis factorial confirmatorio. Todos los ítems presentaron valores adecuados para los parámetros estadísticos y psicométricos, al igual que las cuatro escalas. El modelo de 4 factores que reproduce la estructura original del cuestionario presentó un ajuste adecuado a los datos, con invarianza factorial entre la muestra de hombres y la muestra de mujeres. Se concluye que el CESQT tiene propiedades psicométricas adecuadas para el estudio del síndrome de quemarse por el trabajo (burnout en profesionales de la salud italianos con independencia del género de esos profesionales.

  3. Produtividade, pressão e humilhação no trabalho: os trabalhadores e as novas fábricas de calçados no Ceará

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    Raquel Maria Rigotto

    Full Text Available O objetivo deste artigo é mostrar o modo como as práticas organizacionais e a cultura dos locais de trabalho podem levar a experiências de humilhação e a situações constrangedoras no trabalho. A discussão baseia-se em entrevistas realizadas no decorrer de 2007, com 20 trabalhadores de três fábricas de calçados localizadas no Ceará. A análise de conteúdo das entrevistas indica que, apesar da humilhação e do constrangimento serem formas de violência conduzidas por indivíduos investidos de poder e autoridade na empresa, essas práticas transcendem as relações interpessoais e estão relacionadas às políticas de gestão organizacional centradas no estabelecimento de metas de produção a serem cumpridas pelos trabalhadores. As políticas determinam quanto e como produzir e, ao mesmo tempo, as relações interpessoais que se estabelecem dentro das fábricas.

  4. Estratégias das empresas do setor calçadista diante do novo ambiente competitivo: análise de três casos Footwear industry strategies for the new competition environment: a three case study analysis

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    Andresa Silva Neto Francischini

    2003-12-01

    Full Text Available O ambiente competitivo dos anos 90, marcado pelo processo de abertura comercial, pela adoção da Constituição de 1988, pela sobrevalorização cambial e pelas mudanças nos padrões de concorrência internacional, afetou de maneira diferenciada os setores industriais brasileiros. Este estudo avalia as estratégias tecnológicas, de localização e reorganizadoras adotadas por três empresas calçadistas diante desse novo ambiente competitivo da década de 1990. Esse conjunto de estratégias é avaliado segundo a formulação de quatro proposições, as quais mostram o impacto diferenciado do ambiente competitivo conforme as características das empresas estudadas.The competitive environment during the 1990's - with trade liberalization, the new rules set by the Brazilian Constitution of 1988, exchange rate appreciation and changes in the international competition - had distinct effects on each Brazilian industry. This article analyzes the technological, locacional and organizational strategies in three footwear firms. Based in four propositions, we evaluate the three types of strategies and how the differ in accordance with firm characteristics.

  5. El sentimiento en la antigua construcción. Revestimientos con mortero de cal, estucos y terrajados en el Jardín del Príncipe del Real Alcázar de Sevilla

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    Robador, M.D.

    2006-06-01

    €œhechos a mano”, podemos ver marcados los dedos, las huellas, de los que, en su día, hace muchos años, siglos, hicieron sin máquinas esos ladrillos. Una prenda, un bordado, hecho a mano, con sus pequeñísimas imperfecciones tiene un carácter mucho mayor que los elaborados a máquina. Una fotografía en color, a pesar de su perfección, se valora menos que esa misma imagen pintada por la mano de un artista. Un conjunto de edificios actuales de serie no tiene el mismo valor, ni el alma, ni la personalidad, de un edificio proyectado con exclusividad por un buen arquitecto1. En este texto exponemos un estudio pormenorizado de la influencia del sentimiento en los revestimientos con los antiguos morteros de cal y estuco. Ponemos como ejemplo la restauración que se ha hecho del Patio del Príncipe del Real Alcázar de Sevilla, en la que se ha respetado al máximo la utilización de los antiguos morteros de cal y estuco, aplicados manualmente, tal como se hizo en la época en que se construyó. Se aplicaron y se han vuelto a utilizar revestimientos continuos y terrajados en marcos de ventanas, portadas, arcos, cornisas y elementos decorativos. El haber restaurado este patio con técnicas artesanales le ha impregnado del espíritu de su primigenia construcción.

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

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    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

  7. 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

  8. Métodos electroquímicos semicuantitativos de estudio de lo corrosión por picaduras del acero para armaduras de hormigón

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    Andrade Perdrix, M. C.

    1977-12-01

    Full Text Available El acero embebido en el hormigón se encuentra sometido a un medio de elevada alcalinidad (pH comprendido entre 12 y 13, debido a la cal libre, a los álcalis que contiene el cemento, y al Ca(0H2 que se forma durante la hidratación de los silicatos. En esta situación, el acero se halla recubierto por una capa de óxidos e hidróxidos estables que lo mantienen pasivado, interponiendo una barrera entre él y los agentes agresivos.

  9. 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

  10. Esporotricosis diagnosticada por el laboratorio

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    Nelly Ordóñez

    1989-06-01

    Full Text Available De 1976 a 1989 se han diagnosticado 40 casos de esporotricosis en el laboratorio de Micología del Instituto Nacional de Salud. La enfermedad se presentó en pacientes entre 4 y 52 años y tuvo predilección por el sexo masculino: 35 de 40 (87,5%; las formas clínicas más frecuentes fueron la cutánea fija, 18 de 40 (45%, y la linfocutánea, 17 de 40 (42,5%, con localización mayor en miembros superiores, 18 de 40 (45%. El diagnóstico se estableció por el aislamiento del Sporothrix schenckii en 35 de 38 pacientes (92%; los otros dos pacientes se diagnosticaron empleando otras técnicas: inmunofluorescencia directa, intradermorreacción y aglutinación en tubo.

  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. Miasis cutanea por cordylobia anthropophaga

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    Alkorta Gurrutxaga Miriam

    2001-01-01

    Full Text Available El incremento progresivo en el número de personas que viajan a países tropicales ha hecho que las enfermedades importadas adquieran una relevancia cada vez mayor. Las miasis (o infestaciones por larvas de moscas cutáneas se encuentran entre este tipo de enfermedades siendo especialmente frecuentes en países tropicales. A propósito de la observación de un caso de miasis cutánea masiva por Cordylobia antropophaga, que ocurrió en una mujer de 34 años de edad al volver de un viaje a Senegal, se ha efectuado una revisión de los casos de miasis cutáneas forunculoides importadas publicados en España, así como de la biología, patología, tratamiento y prevención de la miasis humana por Cordylobia anthropophaga. El caso referido, se caracterizó por la infestación con un número inusualmente elevado de larvas, no sospechándose su etiología hasta la fase final de la enfermedad. La emergencia continuada de larvas (se recogieron 91 generó en la paciente un estado de ansiedad importante. Finalmente, la eliminación de las larvas provocó una rápida mejoría de la paciente. Aunque los casos de miasis cutánea no tienen la gravedad de otras enfermedades importadas, su conocimiento es necesario desde el punto de vista preventivo, diagnóstico y terapeútico. Es importante proceder a la identificación morfológica de las larvas diferenciándolas de otro tipo de miasis con implicaciones terapéuticas diferentes.

  14. 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

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    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.

  15. Durabilidad del par de fricción compuesto por el árbol de levas y el cuerpo de los cojinetes del motor VAZ de fabricación Rusa

    OpenAIRE

    Lázaro Antonio Daquinta Gradaille; Roberto Jorge Sánchez; Emilio Agusto Álvarez García; Eloy García Aragón; Hugo Ranero Morgado

    2010-01-01

    El presente trabajo consiste en la investigación de la durabilidad de los elementos del par de fricción formado por el árbol de levas y su cojinete de apoyo en el motor VAZ de fabricación rusa, a partir de una tecnología de recuperación desarrollada en los talleres de la Empresa de Transporte en la provincia de Ciego de Ávila. La realización del trabajo permitió demostrar que la recuperación del cuerpo de los cojinete con metal Babbit B83, crea un par de fricción hierro fundido-metal Babbit B...

  16. Abdome agudo por obstrução por ileobiliar

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    Márcia Cristina de Alencastro

    Full Text Available OBJETIVO: descrever a experiência na abordagem dos doentes com abdome agudo por obstrução por IB, desde o diagnóstico até o tratamento definitivo. MÉTODOS: estudo retrospectivo incluindo todos os casos de IB tratados em um período de 23 anos. De acordo com a abordagem cirúrgica realizada, os pacientes foram divididos em dois grupos (1 enterolitotomia com colecistectomia no segundo momento; e (2 enterolitotomia, colecistectomia e abordagem da fístula. RESULTADOS: Doze pacientes foram incluídos, sendo 11 mulheres (91,6%, com média de idade de 72,2 anos. Todos os pacientes apresentavam doenças associadas, principalmente hipertensão arterial sistêmica (75%. Dois pacientes não apresentavam sintomas significativos de obstrução intestinal. O diagnóstico de IB foi realizado em seis pacientes (50% antes da laparotomia. O grupo 1 foi constituído de oito pacientes e o grupo 2 de quatro, e a morbidade foi, respectivamente, 33,3% e 8,3%. A mortalidade foi 16,6% (um paciente de cada grupo. CONCLUSÃO: O manejo do IB deve ser individualizado. O tratamento da obstrução mediante remoção do cálculo biliar por enterotomia proximal é a escolha inicial para o tratamento do IB. A colecistectomia e a correção da fístula bilioentérica podem ser realizadas juntamente com a remoção do cálculo, no entanto, em pacientes com comorbidades significativas, esses procedimentos devem ser realizados posteriormente.

  17. Desajuste educativo por regiones en Colombia: ¿competencia por salarios o por puestos de trabajo?

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    Castillo Caicedo Maribel

    2007-08-01

    Full Text Available Este trabajo aporta una perspectiva del fenómeno de la sobreeducación,
    entendida como un desajuste por exceso, entre el nivel educativo alcanzado
    por el individuo y el exigido por el puesto de trabajo en el cual se
    desempeña; esto se debe a que existe una demanda laboral estrecha de
    puestos de trabajo para personas calificadas en Colombia. Se analizan las
    contribuciones empíricas existentes y el debate sobre las mismas; se
    examinan las teorías que permiten explicar la existencia de un desajuste
    educativo y se realiza una revisión de la literatura internacional y
    nacional sobre el tema. Adicionalmente, se plantean una serie de hipótesis
    para desarrollar un esquema que permita determinar el comportamiento
    del individuo en el fenómeno de la sobreeducación.

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

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    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

  19. 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

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

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    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

  1. 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)

  2. Muerte materna por malaria grave por Plasmodium vivax

    Directory of Open Access Journals (Sweden)

    Nancy Arróspide

    Full Text Available Se presenta el caso de una mujer de 19 años con 29 semanas de gestación, procedente de Llumpe (Ancash con antecedentes de viajes a las localidades de Chanchamayo (Junín y Rinconada (Ancash. Ingresó al Hospital de Chacas (Ancash por presentar mal estado general, deshidratación, dificultad respiratoria, ictericia, sensación de alza térmica y dolor abdominal, tuvo reporte de: hemoparásitos 60% en frotis sanguíneo. Fue transferida al Hospital Ramos Guardia (Huaraz donde presentó mayor dificultad respiratoria, coluria, hematuria, disminución del débito urinario y reporte de Plasmodium (+, luego fue transferida al Hospital Cayetano Heredia (Lima donde ingresó a la Unidad de Cuidados Intensivos (UCI, con evolución a falla multiorgánica, óbito fetal y muerte materna. Se confirmó infección por Plasmodium vivax. Destacamos la importancia de mejorar nuestras capacidades de diagnóstico y manejo para brindar un tratamiento adecuado y oportuno.

  3. Miasis ocular por Oestrus ovis

    Directory of Open Access Journals (Sweden)

    María Beltrán F

    2006-01-01

    Full Text Available Se presentan tres casos de miasis ocular (dos adultos y un niñoprocedentes de zonas ganaderas de la provincia de Huaura,departamento de Lima,que acudieron al Hospital Regional de Huacho por presentar el ojo rojo,fotofobia, edema palpebral y sensación de cuerpo extraño;se extrajeron larvas adheridas al canto interno del ojo,las cuales se recibieron en el Instituto Nacional de Salud y fueron identificadas como Oestrus ovis .

  4. 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.

  5. 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%.

  6. 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.

  7. 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.

  8. 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

  9. 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.

  10. 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...

  11. 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.

  12. 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...

  13. 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.

  14. 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...

  15. 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.

  16. Hipoglucemia inducida por carcinoma adrenal

    Directory of Open Access Journals (Sweden)

    Jimena Soutelo

    2013-08-01

    Full Text Available El carcinoma suprarrenal es una neoplasia maligna infrecuente y de mal pronóstico. La presentación clínica más común es originada por la producción hormonal excesiva, mientras que el desarrollo de hipoglucemia sintomática es excepcional. Presentamos el caso de una mujer de 37 años que ingresó al hospital por síntomas de hipoglucemias graves, hipertensión arterial, hipopotasemia y amenorrea secundaria. En el laboratorio se halló hipoglucemia con insulina inhibida y niveles de andrógenos en rango tumoral. La tomografía computarizada (TC de abdomen y pelvis mostró voluminosa formación heterogénea de aspecto sólido sin plano de clivaje con respecto al parénquima hepático e intenso realce con contraste. Luego de la extirpación de la masa retroperitoneal, evolucionó con valores de glucemia y potasemia normales, estabilizó la presión arterial y recuperó los ciclos menstruales.

  17. La curiosidad por la naturaleza

    Directory of Open Access Journals (Sweden)

    José Vicente Rodríguez

    2016-07-01

    Full Text Available Esta actitud es un instrumento estratégico para estimular procesos de desarrollo realmente sostenibles, donde se aproveche la admiración que nos embarga al conocer y apreciar lo que nos rodea para responsablemente utilizar y conservar nuestros recursos naturales. Con esta reflexión deseo resaltar esa motivación de escudriñar lo desconocido, que fue también la virtud que propició el desarrollo de la personalidad de Francisco José de Caldas y Tenorio, uno de nuestros primeros y connotados sabios colombianos, y en cuyo honor se constituyó la revista de divulgación científica más importante del país, que en estos momentos cumple 76 años de existencia. Caldas tuvo curiosidad por todo lo que existía en su entorno; inicialmente en su natal Popayán, donde se maravilló por lo natural, lo que lo motivó y llevó más allá de su tierra a formar parte de la mayor empresa de exploración científica adelantada en ese entonces en territorio americano: la primera Expedición Botánica al nuevo Reino de Granada, de José Celestino Mutis.

  18. Mortalidad por meningitis por Pasteurella canis. Oportunidades de aprendizaje

    Directory of Open Access Journals (Sweden)

    Ana Rosa Ropero Vera

    2016-01-01

    Full Text Available La meningitis bacteriana es una enfermedad importante de distribución mundial, causa mayor y sustancial de mortalidad y morbilidad en países en desarrollo. La Organización Mundial de la Salud (OMS sostiene que la meningitis es una de las diez afecciones principales del ser humano y debe ser considerada como una emergencia infectológica; por eso es fundamental reconocer que esta enfermedad es causa de muerte en niños de todo el mundo, sin distinción de raza, nivel económico o sociocultural. Se realizó una investigación de caso en menor de 53 días de nacido, que cumplía con los criterios clínicos y de laboratorio compatible con meningitis bacteriana, con el propósito de analizar y fortalecer la toma de decisiones en salud pública por parte de la secretaría local de salud del municipio de Valledupar (Colombia. Entre los hallazgos se encontró antecedentes infecciosos en el menor, coloración de Gram y cultivo de LCR, en el que se identificó cocobacilos Gram negativos, que fueron aislados como agente causal Pasteurella canis. Este estudio pretende sensibilizar a los prestadores de salud para que cuenten con personal altamente capacitado para brindar tratamientos adecuados y prevenir complicaciones en la meningitis bacteriana en niños, y así disminuir la posibilidad de secuelas o muerte, tanto en pacientes con compromiso inmunológico o sin este.

  19. PRESERVANDO CECROPIAIS NATIVOS EM PAISAGENS AMAZÔNICAS: UMA ESTRATÉGIA ECOLÓGICA EM SOLOS DEFICIENTES POR FÓSFORO

    Directory of Open Access Journals (Sweden)

    Patricia Chaves de Oliveira

    2010-06-01

    Full Text Available A conservação de espécies prestadoras de serviços ecológicos em paisagens amazônicas como os agros-ecossistemas locais do Baixo Amazonas é de extrema importância no input de minerais através da serrapilheira produzida por estas espécies. Os cecropiais nativos, formados pela espécie Cecropia palmata, dentre outras, a qual é acumuladora de fósforo (P em tecidos foliares e cascas podem prestar um serviço ecológico em paisagens amazônicas com deficiência por fósforo. Os objetivos desta pesquisa foram a observação da translocação do fósforo em folhas ontogeneticamentes diferentes de Cecropia palmata; bem como, a análise da dinâmica do fósforo em solos sob conglomerados de Cecropia palmata. Os teores de fósforo (P em tecidos foliares de Cecropia palmata demonstraram valores elevados, em torno de 8.4 mg/kg em folhas novas e 5,6mg/kg em folhas com maturação fisiológica, sugerindo serrapilheira de alta qualidade para o ambiente. Além disso, os solos sob influência da rizosfera desta espécie apresentaram importantes hot spots de fósforo.

  20. Trastorno por déficit de atención con hiperactividad: un modelo predictor de comorbilidad con trastornos del comportamiento

    Directory of Open Access Journals (Sweden)

    JOSÉ ANTONIO LÓPEZ VILLALOBOS

    2004-01-01

    Full Text Available El estudio analiza el perfil de comorbilidad del Trastorno por Déficit de Atención con Hiperactividad (TDAH y trastornos del comportamiento (TC, explorando el modelo que predice esta asociación psicopatológica. Metodología de investigación: Se analiza una muestra de 90 casos con TDAH (6-16 años. Mediante investigación diferencial se compara la agrupación TDAH+TC con la ausencia de esta comorbilidad. El caso de TDAH se valoró según criterios DSM-IV y la comorbilidad mediante el CSI. Se consideraron las variables perfil intelectual (WISC-R, resultados académicos, dimensión relacional, antecedentes psiquiátricos y núcleo de convivencia. Se utilizaron estadísticos descriptivos y exploratorios, implementando un procedimiento de regresión logística. Resultados: El perfil diferencial implica que los casos TDAH+TC presentan, significativamente, mayor deterioro en dimensión relacional, resultados académicos y proporción de padres separados. El modelo que predice TDAH+TC está formado por el factor relacional, mientras que en TDAH + Trastorno Disocial incluye factor relacional y padres separados (p<0.05.

  1. 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 ...

  2. 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...

  3. Mortalidad intrahospitalaria por accidente cerebrovascular

    Directory of Open Access Journals (Sweden)

    Federico Rodríguez Lucci

    2013-08-01

    Full Text Available La mortalidad global por accidente cerebrovascular (ACV ha disminuido en las últimas tres décadas, probablemente debido a un mejor control de los factores de riesgo vascular. La mortalidad hospitalaria por ACV ha sido tradicionalmente estimada entre 6 y 14% en la mayoría de las series comunicadas. Sin embargo, los datos de ensayos clínicos recientes sugieren que esta cifra sería sustancialmente menor. Se revisaron datos de pacientes internados con diagnóstico de ACV del Banco de Datos de Stroke de FLENI y los registros institucionales de mortalidad entre los años 2000 y 2010. Los subtipos de ACV isquémicos se clasificaron según criterios TOAST y los ACV hemorrágicos en hematomas intrapanquimatosos, hemorragias subaracnoideas aneurismáticas, malformaciones arteriovenosas y otros hematomas intraparenquimatosos. Se analizaron 1514 pacientes, 1079 (71% con ACV isquémico (grandes vasos 39%, cardioembólicos 27%, lacunares 9%, etiología indeterminada 14%, otras etiologías 11% y 435 (29% con ACV hemorrágico (intraparenquimatosos 27%, hemorragia subaracnoidea 30%, malformaciones arteriovenosas 25% y otros hematomas espontáneos 18%. Se registraron 38 muertes intrahospitalarias (17 ACV isquémicos y 21 ACV hemorrágicos, representando una mortalidad global del 2.5% (1.7% en ACV isquémicos y 4.8% en ACV hemorrágicos. No se registraron muertes asociadas al uso de fibrinolíticos endovenosos. La mortalidad intrahospitalaria en pacientes con ACV isquémico y hemorrágico en nuestro centro fue baja. El manejo en un centro dedicado a las enfermedades neurológicas y el enfoque multidisciplinario por personal médico y no médico entrenado en el cuidado de la enfermedad cerebrovascular podrían explicar, al menos en parte, estos resultados.

  4. Formação de biofilme por Pseudomonas aeruginosa sobre aço inoxidável em contato com leite e seu controle por óleos essenciais

    Directory of Open Access Journals (Sweden)

    Nádia Nara BATISTA

    2014-01-01

    Full Text Available Objetivo: Avaliar a ação bacteriostática e bactericida de diferentes óleos essenciais sobre células planctônicas de Pseudomonas aeruginosa ATCC 27853, bem como verificar a ação sanitizante, dos óleos essenciais que apresentarem a menor Concentração Mínima Inibitória (CMI, sobre o biofilme formado por esta espécie, Material e Métodos: A ação bacteriostática foi realizada por meio da determinação das CMIs dos óleos de Zingiber officinale, Eugenia caryophyllus, Elettaria cardamomum, Citrus limon e Citrus reticulata v, tangerine, O tempo de morte bacteriana foi determinado utilizando-se as CMIs de cada óleo essencial submetidos a diferentes tempos de contato, O biofilme de P, aeruginosa foi desenvolvido em cupons de aço inoxidável AISI 304 dispostos em placa de Petri contendo leite tratado por Ultra Alta Temperatura (UAT, sendo incubado sob agitação de 70 rpm, a 37 °C/96 horas, Células aderidas foram removidas através de swabs e enumeradas por contagem em placas após submissão a diferentes tratamentos, Resultados: Todos os óleos essenciais apresentaram efeito bacteriostático, se destacando Z, officinale, E, caryophyllus e E, cardamomum, por apresentarem menor CMI, O tempo de morte de P, aeruginosa foi de 10 minutos quando utilizadas soluções a base de E, cardamomum e E, caryophyllus, No entanto, quando testados em biofilme, apenas E, caryophyllus eliminou as células bacterianas viáveis de P, aeruginosa, Conclusão: E, caryophyllus é uma nova alternativa para o controle do biofilme de P, aeruginosa na indústria de alimentos, pois, além de sua alta atividade antimicrobiana, é um composto natural, o que atende as exigências do mercado consumidor.

  5. 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.

  6. 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.

  7. Herida precordial por arma blanca

    OpenAIRE

    Marcelo F. Jiménez; Nuria Novoa; José Luis Aranda; Gonzalo Varela

    2005-01-01

    Varón de 42 años con esquizofrenia paranoide. Intento de suicidio con tres autolesiones por arma blanca (Fig. 1). Fue traído al hospital en estado consciente, taquicárdico, taquipneico y con tensión arterial (TA) de 140/90 mmHg. Fue trasladado al quirófano, donde se practicó una toracotomía axilar izquierda sin extraer el arma. Durante la intervención se apreciaron tres heridas incisas, dos no penetrantes, hemotórax de 150 ml, herida pericárdica de 4 cm, sin lesiones cardíacas. La hoja del ar...

  8. 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.

  9. 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.

  10. 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.

  11. 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.

  12. 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...

  13. Miotoxicidade por organofosforados Organophosphate myotoxicity

    Directory of Open Access Journals (Sweden)

    Maria J. Cavaliere

    1996-06-01

    Full Text Available Os organofosforados são um grupo de compostos químicos amplamente utilizados em agropecuária como inseticidas, ocasionando intoxicações acidentais em animais e humanos, e mesmo sendo utilizados em tentativas de suicídio. A toxicidade desses produtos decorre sobretudo de insuficiência cárdio-respiratória por compromentimento do sistema nervoso autônomo. Sabe-se que alguns destes compostos induzem em animais de experimentação e em humanos, uma miopatia caracterizada por degeneração de células musculares, comprometendo sobretudo a musculatura respiratória. Baseado no fato de que este comprometimento contribui para a piora da função respiratória, propõe-se um protocolo de avaliação rotineira de miotoxicidade por compostos organofosforados, através de uma bateria mínima e suficiente de colorações e reações histoquímicas para quantificação da necrose muscular. Utilizaram-se como modelo experimental, grupos de ratos albinos (Wistar intoxicados com o organofosforado paraoxon, com e sem antídotos (atropina ou pralidoxima. Verificou-se nos grupos tratados com paraoxon e paraoxon mais atropina, necrose de fibras musculares no diafragma, que atingia em determinadas áreas até 15% das fibras. No grupo tratado com paraoxon mais pralidoxima, a necrose foi mínima, evidenciando o papel mioprotetor deste último antídoto.Organophosphates comprise a group of chemical compounds extensively used in farming as insecticides, which cause accidental poisoning in animals and men and are also used in suicide attempts. The toxicity of these compounds is due especially to the cardiac and respiratory impairment in consequence of autonomic nervous system disorders. However, it is known that some of these products induce a myopathy in experimental animals and humans. This myopathy is characterized by muscle cell degeneration, involving above all the respiratory muscles. Based on the fact that this involvement certainly enhances the

  14. An integrated program of geophysical survey, coring, and test excavations to study a 4th millennium bc-cal ditch at Alt del Punxó (Muro de L’alcoi, Alacant

    Directory of Open Access Journals (Sweden)

    García Puchol, Otero

    2008-06-01

    Full Text Available The potentially long and interesting archaeological sequence revealed by systematic survey at the site of Alt Del Punxó (Muro de l’Alcoi, Alacant was the basis for initiating a study of the locality’s subsurface structures using new methods of remote sensing. Geophysical survey (magnetometry and tomography and systematic augering revealed buried structures, including monumental earthworks, and guided subsequent excavations to collect more detailed data about the nature and age of these prehistoric features. The information recovered, including new radiocarbon dates, offers a new perspective on the organization of prehistoric populations in this region of south-central Valencia since the beginning of the Holocene and is especially important for understanding the Neolithic IIB from the 4th through the early 3rd Millennium BC.

    La amplia e interesante secuencia arqueológica sugerida por los materiales de superficie del yacimiento de Alt del Punxó (Muro de l’Alcoi, Alacant ha supuesto el punto de partida para la práctica de una serie de métodos de detección de las estructuras conservadas en el lugar. La prospección geofísica (magnetometría y tomografía, y los microsondeos (augers han dirigido la planificación de la excavación con el fin de obtener nuevos datos a propósito de la naturaleza y cronología del gran foso prehistórico, así como de las diversas estructuras localizadas. La información obtenida, junto a la serie radiocarbónica disponible, abre nuevas perspectivas para el estudio del poblamiento prehistórico al aire libre en las comarcas centro-meridionales valencianas desde los inicios del Holoceno, y de un modo particular en el IV e inicios del III milenio cal AC –Neolítico IIB.

  15. Potencial evocado auditivo de tronco encefálico por via óssea em indivíduos com perda auditiva sensorioneural

    Directory of Open Access Journals (Sweden)

    Luciana Castelo Branco Camurça Fernandes

    2013-06-01

    Full Text Available OBJETIVO: caracterizar os resultados do PEATE por via óssea em indivíduos com perda auditiva sensorioneural leve, comparando esses dados com o grupo controle, formado por indivíduos audiologicamente normais. MÉTODO: a amostra foi constituída por 40 adultos, de ambos os sexos, com faixa etária de 18 a 55 anos, distribuídos em um grupo controle de 30 indivíduos com audição normal e um grupo estudo composto de 10 indivíduos com perda auditiva sensorioneural de grau leve. O PEATE foi realizado com equipamento EP15, da marca Interacoustics. O estímulo utilizado foi o clique com taxa de apresentação de 27,7/s, em um total de 2000 estímulos, com polaridade de rarefação por VA e alternada para VO e filtro passa-banda de 50Hz e 3000Hz. RESULTADOS: em indivíduos com perda sensorioneural de grau leve, não houve diferenças estatisticamente significantes entre o limiar do PEATE por via aérea e óssea, estando esses limiares equivalentes, com GAP aéreo-ósseo menor que 10dB. A latência da onda V no limiar eletrofisiológico e a 50 dBnNA foram menores que as referidas latências observadas em indivíduos com audição normal. CONCLUSÃO: foram encontrados limiares eletrofisiológicos por via óssea equivalente aos limiares obtidos por via aérea, com presença de GAP aéreo-ósseo menor que 10dBnNA. Assim a utilização do PEATE por VO fornece dados para uma caracterização mais detalhada do tipo da perda auditiva.

  16. 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

  17. 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 ...

  18. Herida precordial por arma blanca

    Directory of Open Access Journals (Sweden)

    Marcelo F. Jiménez

    2005-04-01

    Full Text Available Varón de 42 años con esquizofrenia paranoide. Intento de suicidio con tres autolesiones por arma blanca (Fig. 1. Fue traído al hospital en estado consciente, taquicárdico, taquipneico y con tensión arterial (TA de 140/90 mmHg. Fue trasladado al quirófano, donde se practicó una toracotomía axilar izquierda sin extraer el arma. Durante la intervención se apreciaron tres heridas incisas, dos no penetrantes, hemotórax de 150 ml, herida pericárdica de 4 cm, sin lesiones cardíacas. La hoja del arma blanca penetraba a través del diafragma produciendo una herida incisa en el lóbulo hepático izquierdo (Fig. 2. Se extrajo el arma y se suturó la laceración hepática. El paciente fue trasladado el cuarto día a la Unidad de Psiquiatría.

  19. por láser

    Directory of Open Access Journals (Sweden)

    Mayra Garcimuño

    2013-01-01

    Full Text Available En el presente trabajo, la técnica Espectroscopia de plasmas producidos por láser (Laser-induced breakdown spectroscopy –LIBS– se aplicó a la determinación cuan- titativa de Na en agua natural dulce, de interés en agricultura para el estudio de la alcalinidad de aguas de regadío. Para efectuar el análisis, se prepararon soluciones con concentraciones conocidas del analito, se mezclaron con óxido de calcio y se compactaron en pastillas sólidas. Los plasmas se produjeron en aire a presión atmos- férica utilizando un láser pulsado Nd:YAG. Se construyó una curva de calibración y se calculó el límite de detección. Se analizaron muestras de agua natural y los resultados se compararon con los obtenidos mediante espectroscopia de absorción atómica. Se demostró la factibilidad del método para la determinación de Na en agua natural dulce.

  20. 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

  1. Osteomalacia inducida por tumor: hemangiopericitoma rinosinusal

    Directory of Open Access Journals (Sweden)

    Enriqueta M. Serafini

    2013-02-01

    Full Text Available La osteomalacia inducida por tumor es una rara enfermedad del metabolismo óseo caracterizada por el aumento en la excreción de fosfato a nivel renal seguido de hipofosfatemia. Es causada por agentes fosfatúricos producidos por determinados tumores. La resección total del tumor resulta en la completa reversión de las anormalidades bioquímicas, la desaparición de las manifestaciones clínicas y los hallazgos en los estudios por imágenes. Presentamos el caso de un varón de 61 años con cuadro clínico y laboratorio compatibles con osteomalacia oncogénica inducida por tumor mesenquimático de localización rinosinusal. En nuestro caso el diagnóstico histológico correspondió a una neoplasia de tipo vascular: hemangiopericitoma.

  2. Infección por Enterobius vermicularis en preescolares de comunidades rurales

    Directory of Open Access Journals (Sweden)

    Rodolfo Talledo

    2014-06-01

    Full Text Available Para validar la influencia que tiene la infección por Enterobius vermicularis en el rendimiento escolar, se tomó una muestra de 123 niños cuyas edades oscilaban de 3 a 6 años y que constituían toda la población escolar de 6 Centros de Educación Inicial, ubicados en las comunidades rurales de Carabayllo y Santa Rosa de Quives, en Lima, Perú. El estudio comprendió, además del examen parasitológico, la determinación del estado nutricional de los niños, utilizando la técnica de Graham modificada y el índice de Kanawati-Mc Laren, respectivamente. Se halló 34,14% de niños parasitados con Enterobius vermicularis y el 18,08% con desnutrición proteico-calórica leve. La correlación de los resultados por medio del análisis de varianza nos permitió concluir, que la infección por Enterobius vermicularis en los preescolares no influye en el rendimiento escolar, aunque no podemos generalizar este resultado, porque no se evaluaron otros enteroparásitos y además el aprestamiento inicial es básicamente motor antes que intelectual. La malnutrición afectaría a los niños de 5 años y no así a los de 3 y 4 años, aunque el método utilizado no fue el mis adecuado.

  3. Eliminación de patógenos en biosólidos por estabilización alcalina

    Directory of Open Access Journals (Sweden)

    Silva Leal Jorge Antonio

    2009-09-01

    Full Text Available La Planta de Tratamiento de Aguas Residuales de Cañaveralejo –PTAR-C de Cali– Colombia, produce alrededor de 100 t/día de biosólidos que, aunque no tienen restricción por metales pesados, son clase B por el nivel de microorganismos patógenos y parásitos. En un diseño completamente al azar, conformado por seis tratamientos con su respectivo duplicado, se evaluó la estabilización alcalina con dosis del 9% peso a peso de cal viva e hidratada, aplicada a pilas de 0.5 t de biosólidos húmedos (66.5% y secos a temperatura ambiente (25 - 31°C durante 72 h (humedad 50.1%. Con la estabilización alcalina el pH aumentó a valores superiores a 12 unidades durante el tiempo suficiente para garantizar la reducción de patógenos y parásitos, alcanzando un material clase A; sin embargo, el biosólido seco facilitó la formación de grumos que dificultaron las labores de homogenización del sustrato con los alcalinizantes, factor indeseable para la eficiente reducción de patógenos.

  4. Eliminación de patógenos en biosólidos por estabilización alcalina

    Directory of Open Access Journals (Sweden)

    Patricia Torres Lozada

    2009-07-01

    Full Text Available La Planta de Tratamiento de Aguas Residuales de Cañaveralejo -PTAR-C de Cali- Colombia, produce alrededor de 100 t/día de biosólidos que, aunque no tienen restricción por metales pesados, son clase B por el nivel de microorganismos patógenos y parásitos. En un diseño completamente al azar, conformado por seis tratamientos con su respectivo duplicado, se evaluó la estabilización alcalina con dosis del 9% peso a peso de cal viva e hidratada, aplicada a pilas de 0.5 t de biosólidos húmedos (66.5% y secos a temperatura ambiente (25 - 31°C durante 72 h (humedad 50.1%. Con la estabilización alcalina el pH aumentó a valores superiores a 12 unidades durante el tiempo suficiente para garantizar la reducción de patógenos y parásitos, alcanzando un material clase A; sin embargo, el biosólido seco facilitó la formación de grumos que dificultaron las labores de homogenización del sustrato con los alcalinizantes, factor indeseable para la eficiente reducción de patógenos.

  5. 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

  6. Casipoemas por Navidad : (1969-2010)

    OpenAIRE

    Sena Medina, Guillermo

    2011-01-01

    PRESENTACIÓN AL AIRE DE LA POESÍA RELIGIOSA Y NAVIDEÑA DE GUILLERMO SENA MEDINA Constituye un gran honor hacer la presentación de Guillermo Sena Medina por un doble motivo; por la larga y sincera amistad que nos une desde hace muchos años al socaire de nuestra común afición por la Historia, como cronistas oficiales de nuestros municipios; y, sobre todo y particularmente, por su rica y profunda personalidad como hombre de letras, nacida de su aún más rica y profunda personalidad humana. A...

  7. PRODUÇÃO DE CONCENTRADO DE MAGNETITA POR JIGAGEM A PARTIR DO REJEITO DE ROCHA FOSFÁTICA

    Directory of Open Access Journals (Sweden)

    Raphael Silva Tomáz

    2015-12-01

    Full Text Available A magnetita (Fe3O4 é um óxido magnético de ferro natural formado por íons Fe+2 e Fe+3. É o mais comum mineral fortemente magnético, estando presente em pequenas quantidades em quase todas as rochas e também nos meteoritos. A nanotecnologia está largamente presente em todo nosso dia a dia. É possível encontrar diferentes aplicações nas mais diversas áreas da indústria: Eletroeletrônicos, metalurgia, cerâmicos, tintas, tecidos, indústria de polímeros, medicina entre outras. Atualmente a Anglo American Fosfatos do Brasil não produz magnetita, mas possui uma produção de rejeito de 2 Mt (milhões toneladas com teores de magnetita por volta de 40%, na granulometria de 2 mm, sendo esse material enviado integralmente para a barragem de rejeito. O aproveitamento desse material, dada uma recuperação de 60%, traria um crescimento de 78,5 milhões de dólares no PIB do estado. A maior parte da produção de ferro do Brasil é feita por flotação, sendo que tal tipo de produção prejudica a utilização da magnetita, especificamente, para a produção de ferrofluidos nanomagnéticos, devido a enorme quantidade de produtos químicos, principalmente surfactantes, envolvidos na etapa de flotação. Contudo o objetivo desse trabalho é obter um concentrado de magnetita proveniente do rejeito da produção de rocha fosfática por jigagem, para que a mesma possa ser usada na produção de ferrofluidos. Os resultados da utilização do jigue como separador dos minerais são satisfatórios na produção de magnetita para ferrofluidos como coproduto da produção de concentrado de rocha fosfática.

  8. Mastite subclínica causada por Staphylococcus aureus: custo-benefício da antibioticoterapia de vacas em lactação Subclinical mastitis caused by Staphylococcus aureus: cost benefit analysis of antibiotic therapy in lactating cows

    Directory of Open Access Journals (Sweden)

    L.F. Zafalon

    2007-06-01

    Full Text Available Avaliou-se a relação custo-benefício do tratamento da mastite subclínica bovina causada por Staphylococcus aureus. Foram selecionados 270 quartos mamários com mastite subclínica e sadios, divididos em quatro grupos de acordo com o estádio de lactação e o tratamento. O grupo 1 foi formado por animais entre 10 e 60 dias da lactação e tratados contra mastites; o grupo 2 incluiu animais entre 61 dias da lactação e dois meses antes da secagem e tratados contra mastite; o grupo 3 foi formado por animais entre 10 e 60 dias da lactação, não tratados contra mastite; e o grupo 4 foi formado por animais entre 61 dias em lactação e dois meses antes da secagem, não tratados. O tratamento foi realizado pela infusão intramamária de 150mg de gentamicina, uma vez ao dia. A reavaliação foi efetuada após 30 dias. Para os cálculos dos custos com o tratamento, foram considerados uma prevalência de S. aureus de 5% e os gastos com medicamento, descarte do leite, antibiograma e mão-de-obra. Observou-se redução de 2% e 14% das receitas nos grupos 1 e 2, respectivamente, quando comparada com as receitas obtidas antes do tratamento, demonstrando ser economicamente inviável o tratamento da mastite subclínica bovina causada por S. aureus, durante a lactação.Economic evaluation of the treatment bovine subclinical mastitis caused by S. aureus was evaluated. Two hundred and seventy udder quarters with or without subclinical mastitis were distributed into four groups, in conformity to lactational stage and treatments. Group 1 included animals treated between 10 and 60 days of lactation; group 2 included animals treated from 61 days of lactation to two months before drying; group 3 included animals no treated between 10 and 60 days of lactation; group 4 included animals no treated from 61 days of lactation to two months before drying. Treatment with gentamicin (150mg was accomplished by intramammary doses, once a day, after performing sensitivity

  9. 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

  10. Hematoquecia letal por angiostrongilosis abdominal

    Directory of Open Access Journals (Sweden)

    Gerzain Rodríguez

    2000-06-01

    Full Text Available Una niña indigena de 4 años de edad, procedente de Carurú, Vaupés, un municipio semiselvático de 2.000 habitantes, presentó hematoquecia repetida con sincope y muerte 4 días después, a pesar de recibir transfusiones sanguíneas. El estudio postmortem descubrió dos masas de 3-4 cm de diámetro en el ileon distal que, al microscopio, correspondieron a inflamación severa de toda la pared intestinal, rica en eosinofilos y en granulomas con células gigantes que circunscribian y fagocitaban huevos y larvas de Angiostrongylus costaricensis, helminto situado también dentro de las arterias de la submucosa, vasos que presentaban engrosamiento de la intima y focos con inflamación granulomatosa con eosinófilos. La niña no presentó leucocitosis ni eosinofilia. Este es el segundo caso de angiostrongilosis de esta región. El primero fue el de una mujer indigena de 34 años también con hematoquecia anemizante. La angiostrongilosis abdominal se diagnosticó por primera vez en Colombia en 1979, en un niño de 5 años, de Dagua, Valle. La niña aquí presentada es el sexto paciente con esta entidad en Colombia. La hematoquecia como manifestación predominante de la angiostrongilosis es extraordinaria para una enfermedad parasitaria; se ha registrado solamente en tres ocasiones anteriores. La abundancia de cristales de Charcot-Leyden, que se tiñen muy bien con la coloración de Ziehl-Neelsen o de Fite-Faraco, en los infiltrados de la pared intestinal. sugiere que su búsqueda en las heces puede ser una ayuda en el diagnóstico de casos sospechosos. pues, los huevos y las larvas no se eliminan en las heces y el diagnóstico definitivo de la angiostrongilosis es histopatológico. Revisamos las caracteristicas clinicas, parasitológicas e histopatológicas de esta parasitosis que será más prevalente en Colombia a medida que los médicos. especialmente los patólogos, la conozcan mejor.

  11. 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

  12. Encefalopatía por priones

    Directory of Open Access Journals (Sweden)

    Carlos Colegial

    1999-01-01

    Full Text Available Las encefalopatías espongiformes por priones son enfermedades neurodegenerativas que pueden ser esporádicas o transmisibles, ya sea por mecanismos infecciosos o hereditarios. Su investigación ha planteado enormes retos y en el recorrido histórico en busca de su causa dos médicos han recibido el premio Nobel de Medicina: Carleton Gajdusek, por sus trabajos en Nueva Guinea donde describió la transmisión infecciosa por ritos canibalísticos, que llevó a estudios de transmisión experimental en chimpancés y a su teoría de los "virus lentos" (por el largo período de incubación de la enfermedad.

  13. Portable exhauster POR-007/Skid E and POR-008/Skid F storage plan

    International Nuclear Information System (INIS)

    Nelson, O.D.

    1998-01-01

    This document provides storage requirements for 1,000 CFM portable exhausters POR-O07/Skid E and POR-008/Skid F. These requirements are presented in three parts: preparation for storage, storage maintenance and testing, and retrieval from storage. The exhauster component identification numbers listed in this document contain the prefix POR-007 or POR-008 depending on which exhauster is being used

  14. Estructura del quiste hidatídico producido por Echinococcus oligarthrus en el hospedero intermediario Proechimys c.f. guairae (rata espinosa en Casanare, Colombia

    Directory of Open Access Journals (Sweden)

    Gerzain Rodríguez

    2000-09-01

    Full Text Available La equinococosis es un parasitismo grave producido en el hombre y en los animales por larvas de tenias del género Echinococcus que se desarrollan en el higado, el pulmón, el bazo y en otras visceras y tejidos. De las cuatro tenias dei género Echinococcus, tres se presentan en Suramerica: E granulosus, E. vogeli y E. oligarihrus. En Colombia se han informado casos en humanos y en animales cuyo agente etiológico más frecuente es E. vogeli. En este trabajo presentamos la estructura macroscópica, microscópica y de microscopia electrónica de barrido de quistes hidatídicos múltiples y de sus protoescólices encontrados en un Proechimys c.f guairae o rata espinosa, capturado en la vereda La Plata del municipio de Pore, Casanare, durante la búsqueda de reservorios del virus de la encefalitis equina venezolana. En la autopsia del animal se encontraron quistes múltiples en el higado, el bazo y el pulmón, la gran mayoría fértiles. Están constituidos por una pared franjeada que origina cápsulas proligeras dentro de las cuales están los protoescólices. El protoescólex es el escólex inmaduro del parásito adulto formado por cuatro ventosas y un rostelo con ganchos, cuyo tamaño y morfologia corresponden con las medidas de E. oligaiihrus. Ilustramos las caracteristicas morfológicas de las larvas, el desarrollo de los protoescólices y revisamos las caracteristicas de la equinococosis en Colombia.

  15. Escolha, estratégia e competição por escolas públicas Choice, strategy and competition for public schools

    Directory of Open Access Journals (Sweden)

    Marcio da Costa

    2012-08-01

    Full Text Available Usualmente, políticas que buscam estimular a liberdade de escolha de escolas por parte dos pais visam declaradamente promover melhoria educacional por meio de mecanismos competitivos e/ou de accountability. Há discussão acumulada na sociologia sobre os quase-mercados formados em políticas de escolha escolar. O artigo investiga os processos de escolha e de acesso escolar em um contexto que denominamos "quase-mercado oculto". No caso brasileiro, a ausência de regulação permite que severos mecanismos de segmentação se manifestem em meio à complexa hierarquia escolar existente nas redes compostas por escolas públicas "comuns". O artigo apresenta a elaboração conceitual presente na literatura internacional e nossas reflexões para o caso brasileiro, além de resultados de uma pesquisa, especialmente de sua fase qualitativa, referente às entrevistas realizadas com professores(as, diretores(as e com pais de alunos do Ensino Fundamental da rede municipal na cidade do Rio de Janeiro.Frequently, policies that seek to encourage parents´ school choice aim to promote educational improvement by means of competitive and/or accountability mechanisms. There is a growing discussion within sociology around the quasi-markets formed with school choice policies. The paper investigates the processes of school choice and access in a context called "hidden quasi-market". In the Brazilian context, the absence of regulation allows the emergence of severe mechanisms of segmentation that take place within a complex school hierarchy existing among "ordinary" school systems. The article presents a conceptual elaboration present in the international literature and our considerations regarding the Brazilian context. It also brings some results, especially those concerning the qualitative phase of the research, including interviews with teachers, principals and students’ parents from municipal elementary schools in the city of Rio de Janeiro.

  16. 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...

  17. Determinación de residuos de glifosato y de su metabolito ácido aminometilfosfónico en agus mediante cromatografía líquida de alta eficiencia con derivación poscolumna y detección por fluorescencia

    Directory of Open Access Journals (Sweden)

    Hugo A. Rodríguez

    2010-09-01

    Full Text Available El glifosato es un herbicida no selectivo, ampliamente utilizado en el mundo para controlar malezas anuales y perennes. Su principal metabolito en suelos y aguas es el ácido aminometilfosfónico (AMPA formado por la acción de microorganismos. Este herbicida se utiliza en Colombia en altas dosis para la erradicación de cultivos ilícitos de coca y amapola, y como madurante en caña de azúcar, constituyendo un problema ambiental y social en el país, y haciéndose necesaria la evaluación de residuos de glifosato y su metabolito en diferentes matrices.

  18. Equilíbrio e retração muscular em jovens estudantes usuárias de calçado de salto alto Equilibrium and muscle retraction in young female students users of high-heeled shoes

    Directory of Open Access Journals (Sweden)

    Dernival Bertoncello

    2009-06-01

    Full Text Available Verifica-se precocidade na utilização de calçado de salto alto, mas não há muitos estudos identificando suas conseqüências. O objetivo deste trabalho foi verificar alterações de equilíbrio e eventual retração muscular em estudantes universitárias habituadas a utilizar salto alto diariamente. Foram avaliadas 30 jovens (média de 20 anos de idade que anotaram, durante duas semanas, o tempo diário em que permaneciam com o calçado. Foram avaliadas quanto a desvios posturais, quanto às retrações musculares da cadeia posterior, pelo teste de alcance horizontal, e quanto ao equilíbrio, pelo teste de Romberg. Os resultados foram analisados estatisticamente. A média de estatura foi 1,63 m e a de massa corporal, 58,5 kg. O tempo médio de uso dos sapatos de salto alto foi de 34 h por semana. Ao relacionar o alcance horizontal com o tempo semanal de uso do salto alto, verificou-se forte correlação negativa (r=-0,8692; pPrecocity has been noticed in the use of high-heeled shoes. However, there are not many studies on its consequences. The aim of this work was to search for equilibrium alterations in young women used to daily wearing high-heeled shoes. Thirty female undergraduates (mean aged 20 years old were asked to write down, for two weeks, the number of hours per day they remained with the shoes on. They were then assessed as to posture deviations, as to muscle retractions of the posterior chain by means of the sit and reach test, and as to equilibrium by the Romberg test. Results were statistically analysed. Mean volunteers' height was 1.63 m and mean body mass, 58.5 kg. A negative, strong correlation (r=-0.8692; p<0.0001 was noticed between reach range and weekly time (in hours of high-heeled shoe wearing. No correlation was found between reach range and time of high-heel use in years. Seventeen out of the 30 volunteers presented positive test for loss of equilibrium when barefoot with closed eyes. A weak, negative correlation (r

  19. Análisis de la localización, dinámica intracelular y producción de 02 - por el sistema NADPH oxidasa de las células fagocíticas

    Directory of Open Access Journals (Sweden)

    Pablo Patiño

    2001-04-01

    Full Text Available

    El sistema NADPH oxidasa, un sistema encargado de producir
    anión superóxido (O2 - en las células fagocíticas, está formado por las proteínas: gp91 phox, p22 phox, p47 phox, p67 phox, p40 phox y la proteína Rac. Las células COS-7, una línea celular de riñón de simio, que expresa endógenamente Rac1, y que por transfección estable expresan gp91 phox, p47 phox y p22 phox, pueden ser cotransfectadas adicionalmente con vectores episomales pGFP-N3, pEGFP-C1 y pCDNA3.1zeo(+ que contengan el cDNA tipo silvestre y mutante de la proteína p67 phox obtenidos por mutagénesis sitio-dirigida. Estos vectores contienen el gen de la proteína verde fluorescente (GFP, útil para explorar la localización intracelular y la dinámica de los componentes del sistema oxidasa. Después de la cotransfección, se estimulan las células con PMA y se determina la producción de O2
    - y la señal de fluorescencia generada por GFP de forma directa en células vivas por microscopía confocal.

     

     

  20. 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

  1. Quem ainda quer ser professor? A opção pela profissão docente por egressos do curso de história da UFMG

    Directory of Open Access Journals (Sweden)

    Marina Alves Amorim

    2014-12-01

    Full Text Available Neste artigo são retratadas as trajetórias profissionais de egressos de uma turma do Curso de História da UFMG, a turma que ingressou na universidade no primeiro semestre de 1998, composta por egressos que, em sua maioria, concluíram a graduação no segundo semestre de 2001 e comemoraram dez anos de formados no segundo semestre de 2011. São destacadas as trajetórias profissionais daqueles que, dez anos após a conclusão do Ensino Superior, são professores da educação básica, especialmente as dos que pretendem continuar trabalhando com o ensino de história, tendo o cuidado de demonstrar como as situações profissionais atuais se conformaram ao longo da graduação e da década que sucedeu a licenciatura. Afinal, quem ainda quer ser professor dez anos depois da graduação em História pela UFMG?

  2. Verdad por definición

    OpenAIRE

    Garrido Garrido, Julián

    1997-01-01

    Not available.La verdad por definición es un tipo peculiar de verdad científica, distinguible de las verdades lógicas, matemáticas y empíricas. La definición, por su parte, designa diversos procedimientos de asignación de significado, cuyas diferencias exigen una adjetivación cuidadosa: definiciones ostensivas y operacionales, definiciones de diccionario y definiciones teóricas. Pero sólo las del último tipo son verdaderas por definición. En el presente artículo se precisa el concepto formal ...

  3. Síndrome de Munchausen por mandato

    OpenAIRE

    Esteban, Miguel A.; Pérez, Miriam R.; Bracco, Anahí

    2006-01-01

    El Síndrome de Munchausen por mandato, "un trastorno ficticio, por el cual la enfermedad del niño es inducida, promovida o provocada por la persona más próxima a él, generalmente su madre", es todavía mal conocido y su génesis imperfectamente comprendida. Esta comunicación está destinada a esclarecer al pediatra esta patología, con elevada morbilidad y secuelas, como así también de altísima mo...

  4. 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.

  5. 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.

  6. Riscos ocupacionais de uma indústria calçadista sob a ótica dos trabalhadores Riesgos laborales de una industria de calzado en la visión de los trabajadores Occupational risks of a shoe industry from the workers' perspective

    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.Estudio cualitativo descriptivo, que tuve como objetivo identificar los riesgos laborales de una industria de calzado, así como las medidas preventivas adoptadas frente a los riesgos, en la visión de los trabajadores. La muestra fue compuesta por quince trabajadores y los datos fueran obtenidos por entrevista semi-estructurada y analizados a luz de la analísis de contenido. Los aspectos éticos fueran respetados y la investigación fue aprobada por el Comité de Ética en Pesquisa de la Universidad Regional del Estado de Rio Grande do Sul. Los resultados apuntaran que los trabajadores conocen los riesgos de su proceso de trabajo, hacen uso de medidas de protección personal, y que la empresa proporciona dispositivos de seguridad, informando y realizando visitas periódicas a los sectores con el fin de desarrollar actividades educativas.This is a qualitative and descriptive study, which aimed to identify the occupational risks of a shoe industry, as well as the preventive measures taken against those risks, from the workers' perspective. The sample consisted of fifteen workers. Data

  7. La pintura vista por un pintor joven

    Directory of Open Access Journals (Sweden)

    Fuentes Pozo, Pedro

    2000-01-01

    Full Text Available Not available

    El pintor se define a lo largo del tiempo como un artista en mutación influenciado por la sociedad de su momento y por su propio mundo interior Esto ha contribuido a la creación de distintos estilos pictóricos y a una evolución que conlleva la despreocupación por el aspecto formal en aras de una introspección al mundo interior En el cambio constante se refleja la búsqueda del artista que valida la intemporalidad del arte. Así, el verdadero artista sobrevive al aplauso o rechazo de la crítica, convirtiéndose en un verdadero hombre renancentista preocupado por el hallazgo del conocimiento universal.

  8. 14 Nobel, preocupados por el CERN

    CERN Multimedia

    Rivera, A

    2003-01-01

    "E l presidente del Consejo del CERN (Laboratorio Europeo de Fisica de Particulas, junto a Ginebra), Maurice Bourquin, ha recibido una carta firmada por un grupo de cientificos muy especiales: 14 premios Nobel de Fisica" (1 page).

  9. 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

  10. Micetoma por Nocardia brasiliensis: reporte de caso

    Directory of Open Access Journals (Sweden)

    Miriam Guevara R

    2003-07-01

    Full Text Available Se presenta el caso de un paciente peruano, agricultor, con una infección cutánea de origen traumático causada por Nocardia brasiliensis, que evolucionó hacia la amputación del miembro inferior afectado. El diagnóstico se realizó por examen directo y cultivo del espécimen.

  11. Tatuaje por amalgama. Reporte de un caso

    Directory of Open Access Journals (Sweden)

    Luis Fang Mercado

    2012-01-01

    Full Text Available El tatuaje por amalgama se origina por el depósito en el tejido conectivo subepitelial de fragmentos de amalgama resultado de procedimientos iatrogénicos por parte del operador. La profundidad a la que se encuentren albergados los residuos de este material influye en la presentación clínica de las lesiones. Radiográficamente se pueden identificar los fragmentos mientras tengan diámetros razonables; histológicamente se pueden observar las partículas de amalgama como gránulos oscuros, sólidos e irregulares dispuesto entre los haces de colágeno y vasos sanguíneos. Este artículo refiere el caso clínico de un paciente que presentó pigmentación por amalgama en mucosa vestibular, originada por una porción de amalgama usada como material obturador en una apicectomía del 11 realizada con anterioridad. Teniendo en cuenta las consideraciones clínicas y radiográficas se optó por realizar una segunda apicectomía con obturación retrógrada con MTA del 11. Durante el procedimiento quirúrgico se cureteó y adelgazó la cara interna del colgajo mucoperióstico para tratar de disminuir el grado de pigmentación.

  12. 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...

  13. 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 ...

  14. 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)

  15. 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

  16. Eficiência no uso dos nutrientes por espécies pioneiras crescidas em pastagens degradadas na Amazônia central Nutrient use efficiency for pioneer species grown on abandoned pastures in central Amazonia

    Directory of Open Access Journals (Sweden)

    Carlos E. M. Silva

    2006-12-01

    Full Text Available Nas últimas décadas, considerável parcela da floresta amazônica tem sido transformada em pastagens que, em função da baixa fertilidade natural dos solos e do manejo deficiente, decrescem rapidamente em produtividade e são abandonadas, dando lugar a uma sucessão secundária arbórea adaptada à baixa disponibilidade de nutrientes. O objetivo deste estudo foi obter informações sobre a eficiência no uso dos nutrientes por espécies arbóreas freqüentes nesses ambientes degradados, após calagem e aplicação de fosfato. O experimento realizado numa área de sucessão secundária com seis anos de idade, consistiu na aplicação de quatro tratamentos: controle; aplicação de fósforo (P; aplicação de fósforo e calcário (P+Cal; e aplicação de fósforo, calcário e gesso (P+Cal+G. As determinações das taxas de fotossíntese, bem como as coletas de amostras de solo e de folhas foram realizadas oito meses após a aplicação dos tratamentos. A aplicação do corretivo e do fosfato favoreceu o desempenho das espécies nos tratamentos P+Cal e P+Cal+G. Bellucia grossularioides acumulou mais N, P e Zn, enquanto que Laetia procera acumulou mais Ca e Mn. Vismia japurensis foi a espécie mais eficiente no uso dos nutrientes, em função dos altos valores da taxa fotossintética; apresentou baixos teores foliares de P quando comparada com Bellucia grossularioides, sugerindo ser uma espécie bem adaptada a ambientes com baixa disponibilidade de nutrientes, como ocorre em áreas degradadas na Amazônia.Large areas of Amazonian forest have been converted to pastures over the last two decades. Low soil fertility and mismanagement results in a rapid decline in net primary productivity leading the pastures to be abandoned, and woody vegetation adapted to low nutrient conditions colonize the areas. The objective of this study was to examine nutrient use efficiency, following liming (calcium and phosphorus addition by three of the most frequent

  17. Determinación del contenido de compuestos de cromo en el cemento portland por espectrofotometría de absorción atómica. Primera parte

    Directory of Open Access Journals (Sweden)

    Gaspar-Tebar, Demetrio

    1976-09-01

    Full Text Available Not availableEn el presente trabajo se da cuenta de un procedimiento para determinar el contenido de compuestos de cromo en el cemento portland por absorción atómica, bien por el método directo o por el de las adiciones patrones. La fusión se realiza con LiBO2 y la eliminación de interferencias por adición de La (III (1%. Para el desarrollo del trabajo ha sido necesario averiguar dicho contenido por espectrofotocolorimetría del complejo formado por reacción del cromo presente en los cementos, una vez pasado a Cr (VI, con la s-difenilcarbacida. Por otra parte se ha estudiado una variación del método propuesto sustituyendo la fusión alcalina con Na2 C03, o con la mezcla Na2CO3-K2CO3, por la fusión con LiBO2 que proporciona resultados menos dispersos y una desviación estándar estimada, una precisión y un coeficiente de variación menores. Si bien la sensibilidad del método colorimétrico es mayor que la del método propuesto de absorción atómica, éste último es más rápido, con una precisión del mismo orden y, además, permite analizar cuantitativamente los compuestos de cromo siguiendo la marcha que normalmente se utiliza para los demás constituyentes del cemento por absorción atómica. Se hace un estudio estadístico, calculando la desviación estándar estimada, la precisión y el coeficiente de variación de los resultados obtenidos en diversos cementos y clínkeres de cemento portland españoles.

  18. Evolution of NADPH-cytochrome P450 oxidoreductases (POR) in Apiales - POR 1 is missing

    DEFF Research Database (Denmark)

    Andersen, Trine Bundgaard; Hansen, Niels Bjørn; Laursen, Tomas

    2016-01-01

    The NADPH-dependent cytochrome P450 oxidoreductase (POR) is the obligate electron donor to eukaryotic microsomal cytochromes P450 enzymes. The number of PORs within plant species is limited to one to four isoforms, with the most common being two PORs per plant. These enzymes provide electrons to ...... (available from the SRA at NCBI). All three genes were shown to be functional upon reconstitution into nanodiscs, confirming that none of the isoforms are pseudogenes....

  19. 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.

  20. Un sobrevuelo por algunas teorías donde la interacción enfermera-paciente es el núcleo del cuidado

    Directory of Open Access Journals (Sweden)

    ÁNGELA MARÍA SALAZAR MAYA

    2008-12-01

    Full Text Available Este escrito devela a través de tres teorías cómo la interacción enfermera-paciente es el núcleo central del cuidado en enfermería. La enfermería ha estado influenciada por diferentes perspectivas: particular determinista, interactiva-integrativa y unitaria-transformativa. En este mismo sentido el cuidado presenta diferentes conceptualizaciones. Peplau introdujo la teoría de las relaciones interpersonales como un proceso interpersonal terapéutico compuesto por tres fases: orientación, trabajo (subfases: identificación y explotación y terminación. El modelo conceptual de King está formado por los sistemas personal, interpersonal y social; de él derivó la teoría de logro de objetivo. Define el cuidado de enfermería como un proceso de acción, reacción e interacción. Travelbee propone el modelo de relación persona-persona que se establece después de cuatro fases: encuentro original, emergencia de identidades, empatía y simpatía que culminan en el rapport o establecimiento de la relación. Después del sobrevuelo por estas tres teorías se puede decir que la enfermería basa su práctica profesional en una relación enfermera-paciente en la cual la enfermera es un instrumento terapéutico y las interacciones se efectúan para lograr un objetivo o transacción. Tienen en común el concepto de comunicación como un proceso recíproco que se da en las situaciones de encuentro o desencuentro por los que se comunican pensamientos, sentimientos y actitudes, y se comparten las subjetividades, lo que permite ver el cuidado como una labor humanitaria que facilita el crecimiento de cada uno en un proceso que difiere en cada caso.

  1. Recubrimientos de aluminio-silicio realizados por deposición química de vapor en lecho fluidizado sobre el acero inoxidable AISI 316

    Directory of Open Access Journals (Sweden)

    José Luddey Marulanda Arevalo

    2013-12-01

    Full Text Available Los recubrimientos de aluminio-silicio fueron depositados sobre el acero inoxidable AISI 316 mediante deposición química de vapor en lecho fluidizado (CVD-FBR, en el rango de temperaturas de 540 a 560 ºC, utilizando un lecho formado por 2,5 g de silicio y 7,5 g de aluminio en polvo, y 90 g de lecho inerte (Alúmina, el cual se hizo fluidizar con Ar. Como gases activadores se usó una mezcla de HCl/H2, en relaciones de 1/10 a 1/16. Además, se varió el tiempo de deposición de los recubrimientos de 45 minutos a 1.5 horas, con una relación en volumen de 50% de gases activos y 50% de gases neutros. Se realizó una simulación termodinámica con la ayuda del programa informático Thermocalc, para obtener información de la posible composición y cantidad de material depositado, para las condiciones seleccionadas. En los recubrimientos se encuentran FeAl2Si, Fe2Al5 y FeAl2. Los recubrimientos aluminio-silicio fueron tratados térmicamente, para mejorar sus propiedades mecánicas y su comportamiento frente a la oxidación, por la interdifusión de los elementos de aleación, ya que el tratamiento térmico hace que el aluminio difunda hacia el substrato, y el hierro difunda hacia la superficie del recubrimiento, logrando la transformación de los compuestos anteriores en FeAl, Al2FeSi, Cr3Si, AlCrFe y AlFeNi.

  2. Relações entre Gestão do Conhecimento, Faturamento e Número de Funcionários em Empresas Graduadas por Incubadoras.

    Directory of Open Access Journals (Sweden)

    Cicero Aparecido Bezerra

    2013-12-01

    Full Text Available O artigo analisa a existência de similaridades entre empresas graduadas em incubadoras no que diz respeito à eficácia percebida em algumas práticas de Gestão do Conhecimento (GC considerando-se o número de funcionários e o faturamento. O estudo foi elaborado a partir da constatação de carência de pesquisas que busquem associar a GC ao número de funcionários bem como ao faturamento das empresas. Além disso, aplicou-se em empresas graduadas por incubadoras, em virtude da importância destas na formação de organizações sustentáveis. Trata-se de uma análise quantitativa, realizada a partir de testes bivariados. Os resultados indicam que, em 66,67% dos casos, as percepções mais eficazes das práticas de GC foram encontradas nas empresas que mais possuem funcionários. Em relação ao faturamento, o padrão se repete em apenas 40% dos agrupamentos formados por essa variável. Ainda que nos demais casos não se tenham registrado diferenças estatisticamente significativas, na maioria absoluta das vezes, as mais acentuadas percepções de eficácia estão associadas tanto às organizações que registraram um número maior de funcionários como àquelas que se classificaram como pertencentes às classes de maior faturamento.

  3. 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

  4. Desenho e avaliação de formulações de achocolatados processados por processo convencional e instantâneo

    OpenAIRE

    Danielle Jéssica Melo de Barros

    2013-01-01

    O achocolatado é um alimento bem aceito pelo mercado consumidor, sendo encontrado e consumido por todo o mundo. Outro fator importante no mercado de alimentos é a tendência de diminuição do uso de açúcar e o incentivo ao uso de adoçantes, com o intuito principal de atender aos consumidores em dieta com restrição de glicose e, ainda, de redução calórica; também a adequação dos produtos às exigências atuais de produtos mais saudáveis, já que o consumo de açúcar pode estar relacionado com o efei...

  5. Avaliação do efeito carcinogênico de edulcorantes por meio do teste para detecção de clones de tumores epiteliais (warts) em Drosophila melanogaster

    OpenAIRE

    Vasconcelos, Mirley Alves

    2016-01-01

    Os adoçantes podem ser nutritivos e não nutritivos, naturais ou sintéticos, sendo os últimos mais doces em relação ao açúcar de mesa. Estes compostos naturais possuem uso crescente por serem mais seguros, embora esta segurança não possa ser considerada total. Os adoçantes mais consumidos são os não calóricos, dentre eles o aspartame, a sucralose, a sacarina sódica e o glicosídeo de esteviol. Tais substâncias sempre foram alvo de estudos relacionados à genotoxicidade, porém, ...

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

    Directory of Open Access Journals (Sweden)

    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.

  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. 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.

  10. Do nistagmo às provas calóricas com ar e com água From nystagmus to the air and water caloric tests

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    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

  11. Caracterização por FT-IR da superfície de borracha EPDM tratada via plasma por micro-ondas FT-IR characterization of EPDM rubber surface treated by microwave plasma

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    Renata P. dos Santos

    2012-01-01

    Full Text Available A superfície de uma borracha de etileno-propileno-dieno (EPDM vulcanizada foi modificada via plasma por microondas, com gases Ar, Ar/O2, N2/O2 e N2/H2, tendo como objetivo melhorar as propriedades adesivas da superfície. A técnica FT-IR/UATR foi escolhida para caracterizar as superfícies após tratamento, pois apresentou menor interferência dos ingredientes da formulação da EPDM, dentre as técnicas analisadas (ATR/KRS-5 e Ge. Grupos oxigenados foram inseridos na superfície da amostra tratada, mesmo quando não foi utilizado o oxigênio, pois estes grupos foram formados quando a superfície ativada foi exposta à atmosfera. Já em tratamentos contendo N2, grupos oxigenados e possíveis grupos nitrogenados foram identificados por FT-IR. Redução nos valores do ângulo de contato, aumento no trabalho de adesão e aumento no ensaio de resistência ao descascamento (EPDM × Poliuretano foram observados após tratamento com Ar e N2/H2, resultando em melhora nas propriedades adesivas da superfície tratada.The surface of a vulcanized ethylene propylene diene monomer (EPDM rubber was modified by microwave plasma in Ar, Ar/O2, N2/O2 and N2/H2 in order to improve the adhesion properties. Surface modification was characterized by FT-IR/UATR, because this technique showed smaller interference of ingredients of EPDM formulation in comparison with other techniques used (ATR KRS-5 and Ge. Oxygenated groups were introduced in the EPDM surface after treatment, even in treatments without oxygen. Theses groups were formed when the activated surface was exposed to the atmosphere. In treatments with nitrogen, oxygenated and possible nitrogenated groups were identified by FT-IR. Reduction in the contact angle, increase in the work of adhesion and increase in the peel strength (EPDM × Polyurethane were observed after treatment with Ar and N2/H2, resulting in improved adhesion properties of the modified surface.

  12. Acuerdo por la discreción

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    Yeny Serrano

    2006-01-01

    Full Text Available En este artículo se propone un análisis del texto del Acuerdo por la discreción firmado en 1999 por 32 directores de medios de comunicación para “elevar el nivel de calidad y responsabilidad en el cubrimiento y difusión de hechos violentos”. Se analizan los factores que impiden que este Acuerdo produzca cambios efectivos en la práctica profesional informativa y se presenta un modelo (Lemieux, 2000 que tiene en cuenta las variables que influyen en la producción del discurso informativo mediático.

  13. ANTIOXIDANTES: MICRONUTRIENTES EN LUCHA POR LA SALUD

    OpenAIRE

    Zamora S, Juan Diego

    2007-01-01

    Los antioxidantes son sustancias químicas que se caracterizan por impedir o retrasar la oxidación de diversas sustancias principalmente de los ácidos grasos cuyas reacciones se producen tanto en los alimentos como en el organismo humano, en el cual puede provocar alteraciones fisiológicas importantes desencadenantes de diversas enfermedades. Otra de las funciones de los antioxidantes es facilitar el uso fisiológico del oxígeno por parte de las mitocondrias celulares, ayudando a reducir los ef...

  14. Alarma activada por control remoto selectivo.

    OpenAIRE

    Eguíluz Morán, Luis Ignacio; Lara Santillán, Pedro María; Mañana Canteli, Mario

    1995-01-01

    La finalidad de esta invención consiste en disponer de una alarma que bien evite el robo de objetos ligeros y portátiles por el procedimiento que se conoce como "del tirón" --es decir, arrebatar algo y salir corriendo--, bien permita identificar un equipaje entre otros. La originalidad del dispositivo reside en la activación/desactivación del dispositivo de sonido por control remoto, así como la posibilidad de seleccionar el sonido de salida dependiendo de su finalidad. Se reivindica como de ...

  15. PANORAMA LATINOAMERICANO DEL PAGO POR SERVICIOS AMBIENTALES

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    González T. Ángela

    2008-07-01

    Full Text Available Este documento busca proveer al lector de algunos elementos para el análisis y reflexión en torno al pago por servicios ambientales. Para ello, en primera instancia, aborda algunos conceptos básicos relacionados con economía ambiental, seguido de temas como la valoración económica de servicios ambientales y la implementación de mecanismos de pago por algunos de ellos. Lo anterior esta enriquecido con experiencias o estudios de caso a nivel latinoamericano y colombiano.

  16. Reactividad entre whiskers de α-SiC y aluminio durante el procesado por vía líquida de materiales compuestos de matriz metálica

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    Ureña, A.

    1999-06-01

    Full Text Available The reactivity between α-SiC whiskers and an aluminium alloy (Al-Cu-Mg, both present in a metal matrix composite, has been studied when such matrix is in molten state. Using mainly transmission electron microscopy (TEM and electron microdiffraction (ED, the nature and morphology of the reaction products generated at the α-SiC/aluminium interface, when this last melts under different condition which simulate casting and welding procedures for metal matrix composites, have been characterised. Both the formation of Al4C3 aggregates with platelet morphology generated by dissolution-reaction mechanisms, and aciculate crystals of the same carbide form by complete dissolution of the α-SiC whiskers and later Al4C3 precipitation into the molten aluminium. Ternary Al-Si carbides with high chemical stability have been also identified by TEMED (β-Al4SiC4, being its formation related with higher energetic conditions than for the Al4C3.

    Se realiza un estudio de la reactividad entre whiskers de α-SiC y una aleación de aluminio en estado líquido (Al-Cu-Mg, que forman parte de un material compuesto de matriz metálica. Empleando fundamentalmente técnicas de microscopía electrónica de barrido (MEB y de transmisión (MET, junto con difracción de electrones (DE, se ha caracterizado la naturaleza y morfología de los productos de reacción que se generan en la intercara α-SiC/aluminio, cuando éste funde en diferentes condiciones que simulan procesos de fabricación y soldadura del material compuesto. Se ha observado tanto la formación de agregados de Al4C3 con morfología tabular producidos por mecanismos de disolución-reacción de los whiskers, como de cristales aciculares del mismo tipo de carburo formados por disolución total de α-SiC y precipitación en el aluminio fundido. Se ha determinado también que, en condiciones suficientemente energéticas, pueden llegar a formarse carburos ternarios de aluminio y silicio (β-Al4SiC4 que

  17. 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...

  18. Pedro Teixeira y su viaje por Mesopotamia

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    Fuente del Pilar, José Javier

    2005-04-01

    Full Text Available Pedro Teixeira es un integrante notable de la ilustre nómina de los viajeros portugueses que, a finales del s, XVI y principios del XVII, ensancharon para Occidente las fronteras del mundo. Su conocimiento en España se debe a la publicación en 1994 de su obra «Relaciones del Origen, Descendencia y Sucesión de los Reyes de Persia, y de Harmuz, y de un viaje hecho por el autor dende la India hasta Italia por tierra», en edición realizada por el profesor Eduardo Barajas Sala, lamentablemente fallecido en 1997. En este artículo se ofrece una reseña biográfica de Pedro Teixeira, y un análisis del viaje narrado por el autor en la última parte de sus «Relaciones »: el que desde Ormuz le conducirá, a través de Mesopotamia, hasta la costa del Mediterráneo.…

  19. 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.

  20. 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

    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.