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1

ConPor: um modelo de gerao conceitual para o Lucia Specia, Lucia Helena Machado Rino  

E-print Network

ConPor: um modelo de geração conceitual para o português Lucia Specia, Lucia Helena Machado Rino ­ 13565-905 ­ São Carlos ­ SP ­ Brasil {lspecia,lucia}@dc.ufscar.br Abstract. This paper describes Con

Specia, Lucia

2

Para um modelo do \\  

Microsoft Academic Search

In this paper, a model is outlined for the interactional analysis of code-switching (CS) as a communicative phenomenon separate from the alternation of speech varieties (AL, alternancia lingustica) which is a purely structural phenomenon. Communicative codes are viewed as general mechanisms to manifest intentions at several levels of discourse organization. A given communicative code mobilizes and organizes sets of both

Celso Alvarez Cccamo

2000-01-01

3

ESTUDO DOS PARMETROS DO MODELO DE VAZAMENTOS DE UM SETOR DA REDE DE DISTRIBUIO DE GUA DE PIRACICABA-SP  

Microsoft Academic Search

Resumo - O presente estudo visa avaliar as perdas por vazamento para um setor da rede de distribuio de gua da cidade de Piracicaba, SP, Brasil. Para tanto, utiliza-se um procedimento iterativo de avaliao hidrulica que considera as perdas por vazamento e a dependncia das demandas com a presso, acoplado ao simulador hidrulico EPANET 2 (Rossman, 2000), com vistas

Alexandre Kepler Soares; Luisa Fernanda; Ribeiro Reis

4

Vnculos sobre um modelo de quartessncia de Chaplygin usando observaes do satlite chandra da frao de massa de gs em aglomerados de galxias  

NASA Astrophysics Data System (ADS)

Observaes de Supernovas do tipo Ia mostram que a expanso do Universo est acelerando. Segundo as equaes de Einstein uma componente com presso negativa (energia escura) necessria para explicar a acelerao csmica. Alm da energia escura usualmente admitido que no Universo h tambm uma matria extica com presso zero, que chamada de matria escura. Essa componente possui um papel fundamental na formao de estruturas no Universo. Recentemente tem se explorado a possibilidade de que matria e energia escura poderiam ser unificadas atravs de uma nica componente, que tem sido denominada de quartessncia. Um exemplo de fluido com essas caractersticas o Gs de Chaplygin Generalizado, que possui uma equao de estado da forma p = -A/ra. Inicialmente consideramos o caso especial a = 1 (gs de Chaplygin) e vinculamos parmetros do modelo utilizando observaes em raios-X do satlite Chandra da frao de massa de gs em aglomerados de galxias. Uma comparao dos vnculos obtidos com esse teste com outros testes, tais como supernovas e idade do Universo, mostra que esse teste bastante restritivo. Exibiremos ainda resultados para o caso em que a curvatura nula e o parmetro a est compreendido no intervalo -1 < a 1.

de Souza, R. S.

2003-08-01

5

Um Modelo Conceitual Compatvel com a Plataforma EDUCOM/IMS para Comparao de Ambientes de Educao na  

E-print Network

veículo de comunicação para a apresentação de aulas à distância (conferência multimídia). Um processo de o AulaNetTM (provenientes de 21 instituições) e 316 alunos estão matriculados nos 39 cursos oferecidos neste semestre; o Virtual-U e Web-CT também contam com uma grande comunidade de usuários e o mesmo

Fontoura, Marcus F.

6

A PRODUO E INDUSTRIALIZAO DO CAF DOS PRINCIPAIS PRODUTORES BRASILEIROS E A ECONOMIA NACIONAL: SIMULAES SOB UM MODELO INTER-REGIONAL DE INSUMO-PRODUTO  

Microsoft Academic Search

Este trabalho tem como objetivo analisar o comportamento e a importncia atual dos setores de produo agrcola e de industrializao de caf de cada um dos principais Estados produtores brasileiros (Minas Gerais, Esprito Santo, So Paulo, Paran, Bahia e Rondnia) em relao s respectivas economias estaduais e em relao aos demais setores da economia nacional. Para tanto, foi construdo um

Fernando Malateaux Sakon; Joaquim Jose Martins Guilhoto; Flavia Maria De Mello Bliska; Denise Imori; Fernanda Sartori De Camargo

2008-01-01

7

Modelo da Gesto da Cadeia de Abastecimento na Construo  

Microsoft Academic Search

Resumo Na indstria em geral, e principalmente na construo, a entrega dos recursos necessrios actividade um factor essencial para o sucesso do negcio. Para tal contribui, em grande medida, a logstica interna da prpria empresa. A definio de um modelo de gesto da cadeia de abastecimento para a indstria da construo , impreterivelmente, uma das formas de optimizar

Tiago Pinho; Jos Telhada; Maria Sameiro Carvalho

8

The Practice of Research of a Basic Education Teacher Involving Mental Models of the Phases of the Moon and Eclipses. (Spanish Title: La Prctica de Investigacin de un Maestro de Educacin Bsica con El Uso de los Modelos Mentales de Las Fases de la Luna Y Eclipses.) A Prtica de Pesquisa de um Professor do Ensino Fundamental Envolvendo Modelos Mentais de Fases da Lua e Eclipses  

NASA Astrophysics Data System (ADS)

The inclusion of basic education teachers in the survey domain is a controversial issue and fully debated in the academy. The opportunity for a collective work that incorporated school teachers from a public school to a university's group of physics teaching at university allowed us to glimpse the redefinition of the function of a science teacher (a coauthor of this paper) by himself, such that now he includes research on the knowledge construction by students in his teacher practice. The formation of inter-institutional groups for action planning and research in these areas has proved productive for the task of knowledge construction to support educational processes in school, while the university enriches its collection of experiences critically validated, and can consider the results in teachers initial and continued education. The active participation of the teacher in a research group at the university led him to reflect on the possible didactical ways to be described, analyzed and communicated to other teachers. The construction of a pedagogy that took into account the mental models of students on the basic topics of astronomy, and the changes developed resulting from the lessons taught, led to far-reaching consequences on the pedagogy adopted by the teacher, who incorporates now a new vision of science and alternative forms to dialogue with students, essential components for a researcher in Science Education. La inclusin de los maestros de la escuela bsica en el universo de la investigacin es polmica y est en amplio debate en el mundo acadmico. La oportunidad de trabajo colectivo de los maestros de una escuela pblica en Ro de Janeiro con un grupo universitario de enseanza de la fsica nos ha permitido vislumbrar la redefinicin de la funcin de un maestro de ciencias (uno de los coautores de este documento) por l mismo, ahora para incluir la investigacin sobre la construccin del conocimiento por los alumnos en su prctica como docente. La formacin de grupos interinstitucionales para la planificacin de la accin y la investigacin ha resultado productiva para el trabajo de construccin de conocimiento de apoyo a los procesos educativos en la escuela, mientras que la universidad enriquece su coleccin de experiencias validadas, considerando los resultados de la educacin inicial y continua de maestros. La participacin activa del maestro en un grupo de investigacin en la universidad lo llev a reflexiones sobre los posibles caminos didcticos que pueden ser descriptos, analizados y comunicados a los dems docentes. La construccin de una pedagoga propia, que tuvo en cuenta los modelos mentales de los estudiantes sobre los temas bsicos de astronoma, y los cambios desarrollados a partir de las lecciones que ense, trajeron consecuencias de largo alcance sobre la pedagoga adoptada por el maestro, que ahora incorpora una nueva visin de la ciencia y formas alternativas al dilogo con los estudiantes, los componentes esenciales para un investigador en Educacinen Ciencias. A incluso do professor da escola bsica no universo da pesquisa questo controvertida e em pleno debate no meio acadmico. A oportunidade de trabalho coletivo que incorporou professores de uma escola municipal no Rio de Janeiro a um grupo de ensino de Fsica da universidade nos possibilitou vislumbrar a ressignificao da funo de um professor de Cincias (co-autor deste trabalho) por ele prprio, agora passando a incluir a pesquisa sobre a construo de conhecimento pelos alunos em sua prtica como docente. A formao de grupos interinstitucionais para o planejamento de aes e de pesquisas tem-se mostrado produtiva para um trabalho de construo de conhecimentos a fim de subsidiar processos educativos na escola, ao mesmo tempo em que a universidade enriquece seu acervo de experincias validadas criticamente, podendo considerar seus resultados na formao inicial e continuada de professores. A participao ativa do professor num grupo de pesquisa na universidade o

Pessa Queiroz, Glria; Jubitipan Borges de Sousa, Carlos; Auxiliadora Delgado Machado, Maria

2009-12-01

9

APLICAO DE MODELO DIRIGIDO PELA PRESSO NA ESTIMATIVA DE PARMETROS DE REDES DE DISTRIBUIO DE GUA  

Microsoft Academic Search

Resumo - A calibrao de modelos de redes de distribuio de gua para abastecimento constitui uma etapa decisiva reproduo realstica do comportamento de tais sistemas. No entanto, os modelos geralmente no consideram o vazamento distribudo ao longo da rede, bem como a dependncia das demandas com os diferentes nveis de presso atuantes em um sistema de distribuio de gua.

Alexandre Kepler Soares; Luisa Fernanda; R. Reis; Klebber T. M. Formiga; Braga da Silva; Ivaltemir Barros Carrijo

10

Hospitais: Modelo matemtico criado por portugus melhora eficcia das urgncias  

E-print Network

Ciências e Tecnologia da Universidade de Coimbra, foi publicado este ano na revista científica americana de medicina, "Annals of Emergency Medicine". Trata-se de um modelo matemático que permite reduzir os tempos de

Soares, João Luís Cardoso

11

Modelo de galaxia disco  

NASA Astrophysics Data System (ADS)

El objetivo de este trabajo es estudiar la formacin de galaxias anillo, a travs de simulaciones numricas. En el estudio numrico es necesario construir el modelo de una galaxia disco normal, en condicin de equilibrio estable, que se ajuste a los parmetros observacionales disponibles de estos objetos. En dicho modelo se considera la galaxia constituda por un halo de materia oscura, un bulge y el disco propiamente dicho. A partir de perfiles de densidad obtenidos de las observaciones, se lleva a cabo la distribucin espacial de las partculas, a travs del ``Mtodo del rechazo". La asignacin de velocidades se realiza considerando que las partculas del disco estn aproximadamente en equilibrio rotacional, y se agregan dispersiones de velocidad de acuerdo con el parmetro de Toomre Q=1.5.

Ledesma, M.; Mosconi, M.

12

Proposta de um modelo de referncia para as tecnologias multimdia  

Microsoft Academic Search

Digital multimedia has become one of the key concepts in the context of Information Systems Technologies. However, given it is now such a widely used expression, it is often loosely applied, making it difficult to compare the multiple technologies, applications and services. This paper aims at contributing to clarify the various usages of the multimedia concept by suggesting a reference

Nuno Magalhes Ribeiro; Luis Borges Gouveia

13

UM Weather  

NSDL National Science Digital Library

Sponsored by The Weather Underground at the University of Michigan at Ann Arbor, UM Weather bills itself as the "Internet's premier source of weather information." The site offers several general audience tools such as the Fast Forecast for any city in the US, ski weather, and weather cams. But, it also provides access to over two dozen weather software packages, a new computer model forecasts page, and most impressively a list of close to 400 other weather related Web sites. Professionals and researchers will appreciate the non-technical feel of the site and the valuable information they can procure from it.

14

A Rodaviva das Tecnologias Novas tecnologias do origem, em geral, a novos modelos de negcio que por sua vez  

E-print Network

A Roda­viva das Tecnologias Novas tecnologias dão origem, em geral, a novos modelos de negócio que palavras, velhas tecnologias reaparecem com uma nova roupagem como se submetidas a um processo de mundo. O uso dos browsers para utilizar esses servidores é nada mais do que uma nova roupagem para um

15

Novo modelo matemtico melhora eficcia nas urgncias 31-10-2006 14:45:00  

E-print Network

Departamento de Matemática da Faculdade de Ciências e Tecnologia da Universidade de Coimbra, foi publicado este ano na revista científica americana de medicina, "Annals of Emergency Medicine". Trata-se de um modelo

Soares, João Luís Cardoso

16

A Roda-viva das Tecnologias Novas tecnologias do origem, em geral, a novos modelos de negcio que por sua vez  

E-print Network

A Roda-viva das Tecnologias Novas tecnologias dão origem, em geral, a novos modelos de negócio que palavras, velhas tecnologias reaparecem com uma nova roupagem como se submetidas a um processo de mundo. O uso dos browsers para utilizar esses servidores é nada mais do que uma nova roupagem para um

17

Utilizao de modelos de regresso logstica para a previso de risco de liquidez em micro e pequenas empresas  

Microsoft Academic Search

O presente estudo teve como objetivo investigar fatores limitantes da gesto de capital de giro em micro e pequenas empresas (MPEs) na cidade de Viosa, MG. Para constatar a influncia de variveis na probabilidade de risco de liquidez, foi elaborado um modelo de regresso logstica, em que a varivel dependente foi construda pela identificao de problemas de capital de giro,

Marco Aurlio Marques Ferreira; Evandro Rodrigues de Faria

2009-01-01

18

Anais do Simposio Brasileiro de Geomatica, Presidente Prudente -SP, 9-13 de julho de 2002. p.452-457. EXTRAC ~AO DE REDES DE DRENAGEM A PARTIR DE MODELOS  

E-print Network

- Redes de drenagem possuem diversas aplicac~oes, tais como determinac~ao de areas com risco de eros atraves de uma grade regular de pontos, uma malha triangular irregular ou um mapa de contornos os dados a partir dos mapas topograficos ou modelos de fotogrametria. Este trabalho apresenta um m

Zhang, Richard "Hao"

19

XII Escola de Modelos de Regress~ao, Fortaleza-CE, 13-16 Marco 2011 Atribuic ~ao de Trafego em Redes de Filas Finitas Dependentes do Estado  

E-print Network

Redes de Filas Finitas Dependentes do Estado Guilherme D. Carvalho, Renato A. Nascimento & Frederico Riculos, baseado em filas finitas configuradas em redes, acoplado ao modelo do otimo do sistema, que e um dos trafego faz sentido e e robusta. Palavras-chave: Redes de filas, filas finitas, sistemas estoc

Cruz, Frederico

20

Estudio de distintos modelos de protuberancias solares  

NASA Astrophysics Data System (ADS)

En este trabajo presentamos perfiles de lneas del CaII, MgII y HeI calculados para distintos modelos de protuberancias, y los comparamos con observaciones obtenidas por los satlites OSO 8 y SOHO. Para obtener las poblaciones de los distintos niveles de los tomos, utilizamos un cdigo numrico que combina las ecuaciones de transporte de radiacin y equilibrio estadstico en un nico sistema de ecuaciones no lineal. Los modelos bsicos que consideramos para las protuberancias consisten en placas homogneas y unidimensionales apoyadas sobre la superficie del Sol. Dichas placas se hallan estratificadas en hebras y los modelos difieren entre s en la temperatura y ancho de la placa, en la presin a la cual se halla el plasma y en el nmero de hebras. A partir de estos modelos se investiga cada uno de estos parmetros libres y como influyen en la atmsfera de las protuberancias solares y en el perfil de lnea de cada especie estudiada, con el objetivo de determinar las condiciones en las que se halla el material atmosfrico de estas protuberancias.

Cirigliano, D.; Rovira, M.; Mauas, P.

21

UM MODELO PARA RECOMENDAO DE ARTIGOS ACADMICOS BASEADO EM FILTRAGEM COLABORATIVA APLICADO AMBIENTES MVEIS  

Microsoft Academic Search

Resumo. Sistemas de Recomendao (SR) so hoje amplamente utilizados, principalmente na rea de e-commerce como, por exemplo, Amazon.com e Submarino.com. Neste trabalho, prope-se a utilizao destes sistemas na educao, especificamente para a recomendao de contedo em dispositivos mveis. A vantagem de se utilizar sistemas de recomendao em dispositivos mveis est na facilidade da entrega da recomendao aos usurios. Com base

Slvio Csar Cazella

22

Um satlite brasileiro para observao do dimetro solar  

NASA Astrophysics Data System (ADS)

Propomos uma misso espacial para medir a forma e o dimetro solar com o objetivo de ajudar a determinar o potencial gravitacional do Sol e a sua rotao com preciso, testar modelos tericos de variao de energia e pela primeira vez medir os modos g de oscilao. As observaes sero obtidas atravs do instrumento denominado APT (Astrometric and Photometric Telescope) descrito por Kuhn(1983). A sensibilidade do instrumento de 0,2 mas em 27 dias para as observaes do dimetro solar feitas a cada minuto. Esta uma misso de trs anos de durao e pode complementar as medidas que sero feitas pelo satlite PICARD (a ser lanado em 2007). Outros parmetros fsicos podem ser obtidos com as mesmas imagens o que certamente interessar comunidade de fsica solar. Um primeiro contato foi realizado com a agncia espacial brasileira que pretende lanar um satlite cientfico a cada dois anos.

Emilio, M.; Leister, N. V.; Benevides Soares, P.; Teixeira, R.; Kuhn, J.

2003-08-01

23

Modelo de atmosfera solar ajustado s observaes do raio solar em 17GHz  

NASA Astrophysics Data System (ADS)

O estudo das variaes do raio solar durante o ciclo de atividades do Sol e das diferenas em relao sua distribuio angular nos fornece informaes importantes sobre as mudanas na estrutura da atmosfera solar. Neste trabalho foram analisados mais de 3600 mapas do Sol em 17 GHz obtidos pelo Rdio Heligrafo de Nobeyama (NoRH), durante 1 ciclo de atividade solar (1992-2003). O raio solar foi definido no ponto onde a temperatura de brilho do mapa era equivalente metade da temperatura do Sol calmo (temperatura mais comum no mapa).Em relao sua variao ao longo do ciclo solar, o estudo foi dividido em duas partes: a) ajuste de uma circunferncia a pontos distribudos ao redor do Sol todo. Este estudo mostrou uma variao correlacionada com o ciclo de atividade do Sol. b) ajuste da circunferncia a pontos situados somente nas regies polares. Neste caso os resultados mostraram que o raio polar sofre pouca variao durante o ciclo, com tendncia anticorrelao com este. Alm disto, a mdia do raio polar, durante o perodo analisado, foi 1" menor que o raio medido no Sol todo. Para estudar a distribuio angular do raio solar, comparamos a mdia da distribuio de 10 mapas no perodo de mnima atividade solar com a mdia de 10 mapas no perodo de mximo, este estudo mostrou um grande aumento do raio na regio equatorial no perodo de mxima atividade solar. As medidas do raio foram usadas como um dos parmetros para a criao de um modelo atmosfrico (alm da temperatura de brilho do Sol e do abrilhantamento do limbo observado), onde mostramos que um modelo atmosfrico com a regio de transio situada a 3500 km fornece um raio 5" menor que as medidas observacionais. Esta incompatibilidade do modelo com os dados observacionais foi contornada com a incluso de espculas, estas fazem com que o raio solar aumente proporcionalmente altura que estas atingem na atmosfera solar. A anticorrelao do raio polar com ciclo de atividade pode ser interpretada como reflexo do aumento de abrilhantamento de limbo nos plos, visto que este est anticorrelacionado com o ciclo solar. Porm, a presena de espculas, no capaz de explicar os valores muito altos do raio solar medidos na regio equatorial, que acreditamos ser devido s mudanas intrnsecas na estrutura local da atmosfera solar.

Selhorst, C. L.; Silva, A. V. R.; Costa, J. E. R.

2003-08-01

24

Uso de modelos mecnicos em curso informal de astronomia para deficientes visuais. Resgate de uma experincia  

NASA Astrophysics Data System (ADS)

O presente trabalho prope-se a resgatar uma experincia que teve lugar no Planetrio de So Paulo nos anos 60. Em 1962, o Sr. Accio, ento com 37 anos, deficiente visual desde os 27, passou a assistir s aulas ministradas pelo Prof. Aristteles Orsini aos integrantes do corpo de servidores do Planetrio. O Sr. Accio era o nico deficiente da turma e, embora possusse conhecimentos bsicos e relativamente avanados de matemtica, enfrentava dificuldades na compreenso e acompanhamento da exposio, como tambm em estudos posteriores. Com o intuito de auxili-lo na superao desses problemas, o Prof. Orsini solicitou a construo de modelos mecnicos que, atravs do sentido do tato, permitissem o acompanhamento das aulas e a transposio do modelo para o "constructo" mental. Essa prtica mostrou-se to eficaz que facilitou sobejamente o aprendizado da matria pelo sujeito. O Sr. Accio passou a integrar o corpo de professores do Planetrio/Escola Municipal de Astrofsica, tendo ficado responsvel pelo curso de "Introduo Astronomia" por vrios anos. Alm disso, a experincia foi to bem sucedida que alguns dos modelos tiveram seus elementos constitutivos pintados diferencialmente para serem utilizados em cursos regulares do Planetrio, tornando-se parte integrante do conjunto de recursos didticos da instituio. pensando nessa eficcia, tanto em seu objetivo original permitir o aprendizado de um deficiente visual quanto no subsidirio recurso didtico sistemtico da instituio que decidimos resgatar essa experincia. Estribados nela, acreditamos ser extremamente produtivo, em termos educacionais, o aperfeioamento dos modelos originais, agora resgatados e restaurados, e a criao de outros que pudessem ser utilizados no ensino dessa cincia a deficientes visuais.

Tavares, E. T., Jr.; Klafke, J. C.

2003-08-01

25

Transferncias orbitais dentro do modelo quase bicircular no sistema Terra-Lua-Sol  

NASA Astrophysics Data System (ADS)

O problema quase bicircular planar consiste na determinao da dinmica de um corpo, de massa desprezvel, que se move sob o campo gravitacional de trs corpos. No caso estudado, o quarto corpo considerado um satlite artificial e os demais so a Terra, a Lua e o Sol, formando o sistema de trs corpos. Este modelo permite a construo de uma hamiltoniana similar a do problema restrito de trs corpos (PRTC), incluindo termos peridicos no autnomos, provenientes da presena do Sol, portanto pode ser entendido como uma perturbao ao PRTC. Suas rbitas peridicas aparecem isoladas e possuem o mesmo perodo solar. Os pontos de equilbrio colineares possuem o mesmo carter de estabilidade linear dos pontos lagrangianos (L1, L2 e L3) do PRTC, sendo do tipo sela x centro x centro, instvel na direo x e estveis nas direes y e z. As rbitas peridicas tridimensionais ao redor do ponto colinear chamada rbita Halo. O objetivo deste trabalho determinar rbitas de transferncias de baixo consumo de combustvel para um veculo espacial partindo de uma rbita de estacionamento ao redor da Terra em direo a uma rbita Halo do ponto L1, situado entre a Terra e Lua. Esta tarefa pode ser transformada no problema de valor de contorno: dado um ponto inicial na rbita de estacionamento, um ponto final na rbita halo e o tempo de transferncia, deseja-se obter a trajetria que liga estes dois pontos e que minimize os incrementos de velocidade do veculo. Essas transferncias so realizadas baseadas no mtodo de Lambert e analisadas de modo a fornecer um baixo consumo. Posteriormente, feita uma comparao de consumo com as rbitas de transferncia equivalentes do PRTC.

Corra, A. A.; de Almeida Prado, A. F. B.; Stuchi, T. J.; Beaug, C.

2003-08-01

26

Teoras y Modelos Conceptuales para un Diseo basado en Grupos  

Microsoft Academic Search

Palabras clave: CSCW, Diseo, UML. Abstract. Los avances tecnolgicos estn provocando un cambio en el comportamiento social, avanzando hacia modelos de trabajo de computacin ubicua y basado en grupo y organizaciones . Este cambio requiere de teoras que permitan describir sus peculiaridades y de modelos conceptuales que se puedan integrar en el proceso de desarrollo de Ingeniera del Software. En

Miguel Gea; Fco Luis Gutirrez; Jos Luis Garrido; Jos J. Caas

27

Ambiente para la Captura y Administracin de Versiones de Modelos  

Microsoft Academic Search

El proceso de desarrollo de modelos para la gestin, investigacin, produccin, etc., en general involucra actividades creativas, que frecuentemente son poco estructuradas, es decir, no existe un flujo de trabajo definido previamente. Durante este proceso se genera un gran nmero de modelos de distinto nivel de abstraccin del objeto que se desarrolla, el cual puede consistir en un sistema de

Diego Snchez Schenone; Silvio Gonnet; Horacio Leone

28

Modelo para la Integracin de Tecnologas en Educacin Superior  

Microsoft Academic Search

Abstract En este trabajo se discute un modelo para la incorporacinde tecnologas en educacin superior. Este modelo surge a partir de un proyecto de investigacinque est siendo desarrollado en conjunto por investigadores de la Universidad Nacional de La Pampa (Argentina) y de la Universidad de Illinois (USA). La colaboracin interdisciplinaria de docentes e investigadorescon experiencia en las reas de e-learning

Pedro A. Willging; Norma I. Scagnoli

29

O beat e o bit do rock brasileiro: internet, indstria fonogrfica e a formao de um circuito mdio para o rock no Brasil  

Microsoft Academic Search

Resumo: Uma das principais caractersticas do rock brasileiro que ele sempre circulou pelo mainstream fonogrfico. Em cinqenta anos de histria, o rock brasileiro foi lanado por grandes gravadoras, esteve em trilhas sonoras de telenovelas, entre outros elementos tpicos desse modelo de distribuio. Mas, nas ltimas duas dcadas, possvel notar a formao de um circuito de rock brasileiro entre

Danilo Fraga

30

Incorporando a variabilidade no processo de identificao do modelo de mximo global no Grade of Membership (GoM): consideraes metodolgicas  

PubMed Central

A disponibilidade de bases de dados cada vez mais complexas e multidimensionais um dos principais motivadores para o aumento do nmero de estudos que utilizam anlises multivariadas baseadas em lgica de conjuntos nebulosos. Apesar da disseminao do mtodo Grade of Membership nos trabalhos empricos brasileiros da rea de cincias sociais e sade, questes relativas identificabilidade e estabilidade dos parmetros finais estimados pelo programa GoM 3.4 no foram suficientemente aprofundadas. Dada a relevncia de se obterem parmetros nicos e estveis, Guedes et al. (2010) propuseram um procedimento emprico para localizar um modelo de mximo global (MG) com parmetros estveis. Entretanto, seu localizador de MG no incorpora qualquer medida de variabilidade. Neste artigo, tal limitao contornada por meio da utilizao de uma estatstica de ponderao Mximo Global Ponderado (MGP) semelhante ao coeficiente de variao. Esse indicador busca no penalizar de forma desproporcional situaes nas quais os desvios mdios, apesar de diferentes de zero, so muito pequenos. Apresentam-se evidncias de que o localizador MGP reduz a distncia do modelo identificado real estrutura latente dos dados em anlise, quando comparados ao modelo identificado pelo localizador no ponderado, MG. PMID:23293402

Guedes, Gilvan Ramalho; Siviero, Pamila Cristina Lima; Caetano, Andr Junqueira; Machado, Carla Jorge; Brondzio, Eduardo

2012-01-01

31

Modelo Marginalista desincentiva o no a las ERNC?  

E-print Network

Revisar el modelo marginalista del sector elctrico Caracterizar su aplicacin en Chile Revisar suEconmica SustentabilidadSustentabilidad Social ySocial y MedioambientalMedioambiental SeguridadSeguridad Energtica

Catholic University of Chile (Universidad Catlica de Chile)

32

Modelo analtico del efecto de PRS sobre satlites GPS  

NASA Astrophysics Data System (ADS)

El sistema GPS (Global Position System) es, hoy en da, la herramienta de navegacin y posicionamiento ms potente y lo ser sin duda en la prxima dcada. Gran parte de su valiosa utilidad se debe a la alta precisin que permite lograr y sta, a su vez, depende, entre otras causas, de la precisin con que se conocen las rbitas de los satlites. La presin de radiacin solar (PRS) fija el lmite de la precisin con que pueden calcularse en la actualidad las efemrides satelitarias. El objetivo de este trabajo es proponer una mejor resolucin de este fenmeno. El modelo analtico aqu presentado, se basa en el anlisis del comportamiento de los residuos de un ajuste por mnimos cuadrados en el que se utiliza el modelo de PRS propuesto por Beutler. El mismo consiste en un modelo determinista del fenmeno con dos parmetros libres. Los resultados obtenidos ponen de manifiesto que, an despus de aplicar dichos parmetros, prevalecen en los residuos efectos semidiurnos en las componentes radial,tangencial y normal. Estos resultados obtenidos se comparan con los de un trabajo desarrollado por el Instituto de Berne (Beutler et al., 1994), en el que se utilizaron como pseudo-observaciones las rbitas precisas del IGS (CODE). El intervalo de integracin escogido por este centro fueron las semanas 680 y 681. En resumen se tienen arcos de 14 das para todos los satlites, donde las efemrides precisas de los mismos para los 14 das fueron utilizados como pseudo-observaciones. El modelo de fuerza que emple dicho centro fue bsicamente el tradicional en lo que respecta al modelo de las fuerzas gravitacionales, y para la PRS utilizo el modelo standard de Beutler. Los parmetros de este modelo junto con las 6 condiciones iniciales (posicin y velocidad) fueron ajustados por el mtodo general de mnimos cuadrados. Los residuos en la componente radial, tangencial y normal, para los satlites con un buen comportamiento, presentan una componente semidiurna. El modelo analtico planteado en este trabajo, predice el comportamiento de los residuos que se observan en las publicaciones ms recientes. Esto abre el camino para plantear una estimacin distinta de las incgnitas del problema, basado en el mtodo de colocacin por mnimos cuadrados. Ello requiere modelar estadsticamente la seal debida a las componentes de la PRS que no son tomadas en cuenta en el modelo determinista.

Meza, A.; Brunini, C.; Usandivaras, J. C.

33

Our address: UM Waste Management Services  

E-print Network

Our address: UM Waste Management Services 1655 Dean Road Ann Arbor, MI 48109-2159 Directions to the Waste Management Services shop and offices: From Central and North Campuses, by UM bus: Take down the driveway to the large garage at the end. You have arrived at UM Waste Management Services

Awtar, Shorya

34

MODELO PARA FASE DE PLANEJAMENTO DE UM SISTEMA INTEGRADO DE GESTO EM USINAS DE CANA-DE-ACAR  

Microsoft Academic Search

To optimize the activities, services and products of a Sugar Cane Plant, the promising activity for Brazil's interior development, reducing losses, adding value to the final product and minimizing risks, through a planning of an Integrated Management System (IMS) which integrates Quality, Environment, Health and Occupational Safety. The article encloses the planning of an IMS, giving basic emphasis to the

Nelson Siqueira Neto; Antnio Pasqualetto

35

400 500 600 700 800 900 Modelo de ojo  

E-print Network

modelo de ojo de campo amplio [Escudero-Sanz & Navarro, 99]. Diseño del corrector Experimento - Medida COMPROBACI??N DE UN CORRECTOR DEN DE UN CORRECTOR DE ABERRACIABERRACI??NN CROMCROMÁÁTICA OCULAR DE CAMPO AMPLIOTICA OCULAR DE CAMPO AMPLIO IntroducciIntroducciIntroducciIntroduccióóóónnnn Resultados

Ribak, Erez

36

Medio ambiente y contaminacin: un modelo de brecha ecolgica  

Microsoft Academic Search

El autor seala que el problema de la contaminacin ambiental no tiene necesariamente una solucin ptima en el marco convencional de la teora de la asignacin de recursos. Ello, debido al hecho de que este marco ignora la capacidad asimilativa de desperdicios del medio ambiente. En este artculo se elabora un modelo de brecha ecolgica, con funciones lineales en que

Santiago A. Torres

37

TECNOLOGIA E CINCIA Hospitais: Modelo matemtico criado por  

E-print Network

TECNOLOGIA E CINCIA Hospitais: Modelo matemtico criado por portugus melhora eficcia das, desenvolvido por Joo Lus Soares, do Departamento de Matemtica da Faculdade de Cincias e Tecnologia da significativo do nmero de Page 1 of 3Tecnologia 10 13-11-2006http://www.solnet.com/03nov06/tecnolog/tecnol10

Soares, Joo Lus Cardoso

38

BIBLIOTECA GRAPHICALSPRITEKERNEL (GSK): IMPLEMENTACIN DE UNA ARQUITECTURA DE TRES MODELOS PARA CREAR MULTIMEDIA EDUCATIVA  

Microsoft Academic Search

Resumen En este trabajo se presenta una arquitectura de tres modelos para desarrollar multimedia educativa, a travs de una implementacin particular de sta, la biblioteca GraphicalSpriteKernel. Esta arquitectura est constituida por tres modelos diferentes, a emplear en tres fases fundamentales del desarrollo de una aplicacin multimedia: diseo, implementacin y prueba. Esta especializacin permite que cada modelo incluya slo la lgica

Vicente Arturo Romero Zaldivar

39

Un modelo general de eyeccin de materia estelar  

NASA Astrophysics Data System (ADS)

Posiblemente, la ms directa y dramtica evidencia de la prdida de masa por parte de diferentes objetos astrofsicos la constituye el fenmeno de eyeccin persistente de materia. En el caso particular de las estrellas, las caractersticas y los mecanismos que impulsan a sus atmsferas externas hacia el medio interestelar varan a lo largo del diagrama evolutivo. En parte por este motivo, en parte por las dificultades matemticas involucradas, es muy difcil elaborar un modelo que pueda dar cuenta de los diferentes mecanismos que originan e impulsan el viento estelar. Cabe entonces preguntarse si es posible desarrollar un nico modelo en el que estos mecanismos puedan ser considerados (y variados) como parmetros externos que responden a las caractersticas de cada regin de la secuencia evolutiva. La respuesta es que, en funcin de la geometra del campo electromagntico involucrado, todo depende de la simetra del problema. En este trabajo se presenta el anlisis detallado de una de tales simetras, discutiendo en particular los resultados obtenidos a la luz de las observaciones disponibles.

Rotstein, N. O.

40

INSTRUMENTACIN DE GRANDES CALDERAS DE POTENCIA PARA LA APLICACIN DE MODELOS AVANZADOS DE INGENIERA  

Microsoft Academic Search

RESUMEN La implementacin de modelos de monitorizacin del funcionamiento de calderas de potencia requiere de gran cantidad de datos para su validacin, que adems deben cumplir unos mnimos requi- sitos de precisin y completitud. La importancia de estos modelos es cada da mayor, pues se aplican en el control de procesos complejos que suceden en este tipo de instalaciones. Frente

Luis Ignacio Dez; Cristbal Corts; Inmaculada Arauzo

41

Hacia un modelo hbrido de simulacin de la produccin de software en un entorno multiproyecto  

Microsoft Academic Search

La simulacin del ciclo de vida de los proyectos software o de partes de ste es un activo campo de investigacin en la ingeniera del software. El presente informe analiza la literatura sobre modelos de simulacin que puedan se tiles para estudiar las organizaciones de desarrollo de software. La finalidad del trabajo es construir un modelo de simulacin en el

Javier Navascus Fernndez-Victorio; Isabel Ramos Romn; Miguel Toro

2008-01-01

42

Uso de Tcnicas no Supervisadas en la Construccin de Modelos de Clasificacin en Ingeniera del Software  

Microsoft Academic Search

Resumen. En minera de datos las tcnicas supervisadas y no supervisadas tienen diferentes propsitos. Las primeras se utilizan para construir modelos que sern utilizados para realizar predicciones mientras que las no supervisadas, o algoritmos de descubrimiento del conocimiento, se usan generalmente para la extraccin de informacin til a partir de grandes volmenes de datos. Recientemente se han propuesto modelos de

Mara N. Moreno Garca; Vivian F. Lpez Batista

43

Un modelo de cointegracin estacional de la produccin industrial, Colombia 1993-2005  

Microsoft Academic Search

En este artculo se explora la relacin de equilibrio de largo plazo entre produccin industrial e importacin de bienes de capital y de materias primas en Colombia entre enero de 1993 y abril de 2005. Esta relacin se determina mediante un modelo de cointegracin estacional; con el modelo resultante se hacen ejercicios de impulso respuesta para simular la trayectoria de

lvaro Chaves Castro

2005-01-01

44

LIRMM UM II Component based Software Architecture  

E-print Network

1 LIRMM UM II Component based Software Architecture of Robot Controllers R. Passama, D. Andreu, C component approaches and robot control architectures. This methodology defines a process that guides architecture, useful for analysis and integration, and a dedicated component-based language, focusing

Paris-Sud XI, Université de

45

Media Contact Annette Gallagher, UM Communications  

E-print Network

for domestic consumption, the growth of a porcelain industry in the first quarter of the seventeenth century. Sayumi Harb, Department of East Asian Languages and Culture, Connecticut College; and Dr. Chang Qing holidays. General Admission (not including programs) is $10, senior citizens and non-UM students are $5

Shyu, Mei-Ling

46

eABC : um repositrio institucional virtual  

Microsoft Academic Search

O eABC surge no contexto dos repositrios institucionais desenvolvidos pela Universidade de Aveiro. Neste artigo descreve-se resumidamente em que consistem estes repositrios e algumas dificuldades que advm aquando da sua implementao. Com este artigo pretende-se tambm apresentar um caso prtico do uso da tecnologia XML e de algumas das tecnologias que lhe esto associadas como o XPath, o XQuery e

Johnny Santos; Cludio Teixeira; Joaquim Sousa Pinto

47

Modelos de anlisis para la prevencin de lesiones en el deporte. Estudio epidemiolgico de lesiones: el modelo Union of European Football Associations en el ftbol  

Microsoft Academic Search

El mundo del deporte, y el de la alta competicin especialmente, comporta un considerable riesgo de sufrir lesiones por su nivel de exigencia fsica y psquica. El origen multifactorial de las lesiones complica la identificacin de los factores de riesgo y la bsqueda de estrategias para su prevencin. Desde la publicacin en 1992 del modelo secuencial para la prevencin de

Francesc Cos; Miquel ngel Cos; Lorenzo Buenaventura; Ricard Pruna Griv

2009-01-01

48

Relacionamentos Externos no mbito da Inovao Empresarial: Modelo aplicado aos avanos inovadores  

Microsoft Academic Search

A inovao assume-se cada vez mais como um factor chave da competitividade empresarial. Vrias abordagens tericas, desenvolvidas nos ltimos anos, sustentam que a inovao no algo que resulta da aco isolada de um nico actor, mas vista como um processo no linear, complexo, evolucionrio e interactivo entre a empresas e o seu meio envolvente. Esta investigao tem por

Maria Jos Madeira Silva; Mrio Lino Barata Raposo; Maria Eugnia Ferro; Juan Jos Jimnez Moreno

2005-01-01

49

Extinctions at 7um and 15um from the ISOGAL survey  

E-print Network

The extinction laws at 7um and 15um are derived for more than 120 sightlines in the inner Galactic plane based on the ISOGAL survey data and the near-infrared data from DENIS and 2MASS. The tracers are the ISOGAL point sources with [7]-[15]extinctions at 7 and 15um in terms of the near-infrared extinction in the Ks band. The distribution of the derived extinctions around 7 micron (A_7) is well represented by a Gaussian function, with the peak at about 0.47A_Ks and ranging from 0.33 to 0.55A_Ks (using the near-infrared extinctions of Rieke & Lebovsky 1985). There is some evidence that A_7/A_Ks may vary significantly depending on the line of sight. The derived selective extinction at 15um suffers uncertainty mainly from the dispersion in the intrinsic color index (Ks-[15])_0 which is affected by dust emission from mass-losing AGB stars. The peak value of A_15 is around 0.40A_Ks.

B. W. Jiang; J. Gao; A. Omont; F. Schuller; G. Simon

2005-09-22

50

SNTESE E INTEGRAO DE UM AGREGADO RECONFIGURVEL APLICADO A UM ALGORITMO GENTICO DISTRIBUDO  

Microsoft Academic Search

Sistemas em grade e agregados de computadores tm sido amplamente empregados como alternativa para aplicaes cientficas que necessitam de processamento de alto desempenho. Entretanto, comum que essas aplicaes utilizem apenas uma parte do conjunto de instrues de um processador de propsito geral, comumente encontrado nos nodos dos agregados e grades. Como alternativa este trabalho prope o fluxo de concepo

Alexandra Aguiar; Fabiano Kist; Mrcio E. Kreutz; Joo Carlos Furtado; Rafael R. Santos; Tatiana G. S. Santos

51

COMPARAO DOS RESULTADOS DE UTILIZAO DE ANLISE POR ENVOLTRIA DE DADOS E REGRESSO LOGSTICA EM MODELOS DE PREVISO DE INSOLVNCIA: UM ESTUDO APLICADO A EMPRESAS BRASILEIRAS  

Microsoft Academic Search

Many studies on models of bankruptcy prediction can be found in the literature of management. These studies are created using mathematical techniques and employed to analyse accounting indicators originated from financial statements of companies. The present study explores the creation of bankruptcy prediction models using Data Envelopment Analysis (DEA) and Logistic Regression, and compares the results obtaining by both techniques.

Luciana Massaro ONUSIC; Silvia KASSAI; Adriana Backx; Noronha VIANA

52

O MOSAICO NARRATIVO INTERSEMITICO DE WATCHMEN: UM MODELO DE CONSTRUO POTENCIAL DE TEXTOS CRIATIVOS WATCHMEN'S INTERSEMIOTIC NARRATIVE MOSAIC: A MODEL OF POTENTIAL CONSTUCTION OF CREATIVE TEXTS  

Microsoft Academic Search

This study is made as part of a masters degree dissertation, taken at Pontifcia Universidade Catlica of So Paulo, in Communication and Semiotics program. The study object is the comics Watchmen, written by Alan Moore and illustrated by Dave Gibbons. Watchmen is a narrative with a sui generis structure, made with its language specific parameters, and also (and that is

Luiz Marcelo Brando Carneiro

53

Modelos Teoricos de Linhas de Recombinacao EM Radio Frequencias Para Regioes H II  

NASA Astrophysics Data System (ADS)

Foram feitos modelos de linhas de recombino provenientes de regies HII nas frequncias de rdio para distintos nmeros qunticos. Estes modelos consideram regres H II esfericamente simtricas com variaes radiais na densidade e temperatura eletrnica, efeitos de colisoes inelsticas dos eletrons (alargarnento por presso), e afastarnento do equilibrio termodinmico local. 0 bojetivo construir o perfil da linha para cada ponto da nuvern e obter o valor mdio resultante da sua convolu com o feixe da antena de tarnanho comparvel corn o tarnanho angular da nuvern para posterIor cornpara o corn

Abraham, Z.; Cancoro, A. C. O.

1987-05-01

54

Descripcin de la zona de alta difusin en un modelo bidimensional para hojas de corriente  

NASA Astrophysics Data System (ADS)

Los modelos bidimensionales para describir hojas de corriente de alta simetra no suministran una descripcin detallada de las regiones donde la difusin es considerablemente importante. Tal es el caso de los modelos desarrollados en la dcada del '60 por Sweet, Parker, Petschek y Sonnerup. En esta comunicacin presentamos una solucin de las ecuaciones MHD en el entorno del origen, construyendo series bidimensionales para todas las magnitudes fsicas involucradas. Valindonos de la alta simetra y de las caractersticas del problema, logramos reducir el nmero de coeficientes a calcular. Utilizamos un programa autoconsistente para extender el clculo a regiones vecinas con difusin moderada o despreciable.

Montero, M. F.; Paola, C. A.; Platzeck, A. M.

55

Seleccin de caractersticas usando modelo hbrido Seleccin de caractersticas usando modelo hbrido basado en algoritmos genticos basado en algoritmos genticos Feature selection using a genetic algorithm-based hybrid approach  

Microsoft Academic Search

RESUMEN En el artculo se propone un modelo hbrido de seleccin de caractersticas con el objeto de reducir la dimensin del espacio de entrenamiento, sin comprometer la precisin de clasificacin. El modelo incluye la induccin de un rbol de decisin que genera subconjuntos de caractersticas, para las cuales seguidamente se evala su relevancia mediante el criterio del mnimo error de

Luis Felipe Giraldo; Edilson Delgado Trejos; Juan Carlos Riao; Germn Castellanos Domnguez

56

Parylene supported 20um*20um uncooled thermoelectric infrared detector with high fill factor  

NASA Astrophysics Data System (ADS)

Presented is a novel design for an uncooled surface-micromachined thermoelectric (TE) infrared (IR) detector. The detector features a P-doped polysilicon/Nichrome (Cr20-Ni80) thermocouple, which is embedded into a thin layer of Parylene-N to provide structural support. The low thermal conductivity (~0.1W/m.K), chemical resistance, and ease of deposition/patterning of Parylene-N make it an excellent choice of material for use in MEMS thermal detectors. This detector also features an umbrella-like IR absorber composed of a three layer stack of NiCr/SiN/NiCr to optimize IR absorption. The total device area is 20 um * 20 um per pixel with an absorber area of ~19 um * 19 um resulting in a fill factor of 90%. At room temperature, a DC responsivity of ~170V/W with a rise time of less than 8 ms is measured from the fabricated devices in vacuum when viewing a 500K blackbody without any concentrating optics. The dominant source of noise in thermoelectric IR detectors is typically Johnson noise when the detectors are operating in an open circuit condition. The fabricated detectors have resistances about 85KOhm which results in Johnson noise of about 38nV/Hz^0.5. The D* is calculated to be 9 * 106 cm*Hz0.5/ W. Preliminary finite element analysis indicates that the thermal conduction from the hot junction to the substrate through the TE wires is dominant ( GTE >> Gparylene) considering the fabricated dimensions of the parylene film and the TE wires. Thus, by further reducing the size of the TE wires, GTE can be decreased and hence, responsivity can be improved while the parylene film sustains the structural integrity of the cell.

Modarres-Zadeh, Mohammad J.; Carpenter, Zachary S.; Rockley, Mark G.; Abdolvand, Reza

2012-06-01

57

EL MODELO DE REGULACIN DEL SERVICIO PBLICO DE TELECOMUNICACIONES EN COLOMBIA  

Microsoft Academic Search

En este artculo se analiza el desarrollo del modelo de regulacin en la prestacin del servicio pblico de telecomunicaciones en Colombia, a partir de la liberalizacin de los servicios pblicos domiciliarios (SPD) establecida en el marco normativo de la Constitucin Poltica de Colombia de 1991 y la Ley 142 de 1994. Basado en la revisin de la literatura existente sobre

Ral Andrs Tabarquino Muoz

2010-01-01

58

Obtencin y Validacin de Modelos de Estimacin de Software Mediante Tcnicas de Minera de Datos  

Microsoft Academic Search

Resumen La medicin del software est adquiriendo una gran importancia debido a que cada vez se hace ms patente la necesidad de obtener datos objetivos que permitan evaluar, predecir y mejorar la calidad del software as como el tiempo y coste de desarrollo del mismo. El valor de las mediciones aumenta cuando se realiza sobre modelos construidos en las primeras

Mara N. Moreno Garca; Luis Antonio Miguel Quintales; Francisco Jos Garca Pealvo; Mara Jos Polo Martn

2002-01-01

59

DISEO DE MODELOS PARA DISPOSITIVOS ELECTRNICOS CERO DIMENSIONALES PARA LA EDUCACIN EN NANOTECNOLOGA  

Microsoft Academic Search

Con el avance de las nuevas tecnologas, tales como la nanoelectrnica, el desarrollo de mtodos a travs de los cuales sea posible hacer que estos conocimientos sean de dominio general se ha convertido en una necesidad. A travs de este artculo se analizan una serie de modelos bsicos de dispositivos nanoelectrnicos (puntos cunticos, transistores de electrn nico), enfocados hacia el

Miguel ngel; Rojas Tapias; Andrs Lombo Carrasquilla

60

Calculo estocastico aplicado a las finanzas: Precio de las opciones segun el modelo  

E-print Network

modelizaci´on muy general de los mercados financieros. Este trabajo ha sido financiado por el Ministerio de­Scholes­Merton, semimartingalas, integraci´on con semimar- tingalas, modelos financieros generales. 1. Introducci´on L. Bachelier no admite arbitrajes y es completo (se pueden replicar las opciones). Aparte de los resultados financieros

Ruiz, Jesús M.

61

El modelo SFI: propuesta de inclusin de variables informacionales y adaptacin de la funcin de utilidad  

Microsoft Academic Search

Este trabajo propone adaptar el modelo burstil artificial de Santa Fe en varios puntos resumidos en: sustitucin de la funcin de utilidad exponencial por la potencial, heterogeneidad parcial de dicha funcin, mejora del proceso de aprendizaje, inclusin de normas de contagio, de creencias, y de influencia informacional, y heterogeneidad de horizontes temporales. El trabajo ofrece una introduccin a la Econofsica,

Salvador Roj Ferrari

2003-01-01

62

APRENDIZAJE BASADO EN PROJECTOS MULTIMEDIALES COMO MODELO DE INTEGRACIN CURRICULAR DE TICs  

Microsoft Academic Search

La metodologa de Aprendizaje Basado en Proyectos con Recursos Multimediales (ABP+RM), es el modelo de sustento de Multimedia Project (MMP), un proyecto implementado exitosamente en los Estados Unidos desde 1995. Durante el ao 2002 la Universidad de Chile ejecut por encargo del Ministerio de Educacin, una experiencia piloto del MMP adaptada a la realidad nacional. Este trabajo presenta el rediseo

Jaime Snchez; Paola Alarcn

63

Las ganancias del comercio y el intercambio desigual en los modelos del comercio internacional  

Microsoft Academic Search

Se examina el problema del intercambio desigual de trabajo entre pases desarrollados y en desarrollo y su vinculacin con las condiciones del comercio de beneficio mutuo. Para ello se utilizan los principales modelos tericos del comercio internacional basado en las ventajas comparativas, y se ampla al caso de dos factores el concepto de relacin de intercambio de trabajo derivada del

Francisco Martnez Soler; Andrei Martnez Finkelshtein

2005-01-01

64

Modelo para la reduccin del ciclo de desarrollo de software basado en CMM. Francisco J. ALVAREZ.  

E-print Network

alto costo de implementacin de modelos y la disminucin de productividad en el perodo de aprendizaje: Calidad de Software, Procesos de desarrollo, CMM (Capability Maturity Model), KPA's (Key Process Areas desarrollo lograran el estandarizar procesos e incrementar la calidad de los productos. Para adoptar el CMM

Weitzenfeld, Alfredo

65

"Uh" and "Um" Revisited: Are They Interjections for Signaling Delay?  

ERIC Educational Resources Information Center

Clark and Fox Tree (2002) have presented empirical evidence, based primarily on the London-Lund corpus (LL; Svartvik & Quirk, 1980), that the fillers "uh" and "um" are conventional English words that signal a speaker's intention to initiate a minor and a major delay, respectively. We present here empirical analyses of "uh" and "um" and of silent

O'Connell, Daniel C.; Kowal, Sabine

2005-01-01

66

Usina do Trabalho do Ator: um teatro canibal  

E-print Network

FALL 1999 97 Usina do Trabalho do Ator: um teatro canibal Gilberto lele O grupo Usina do Trabalho do Ator um teatro-laboratrio que vem trabalhando desde 1992, em Porto Alegre, estado do Rio Grande do Sul, no Brasil. O trabalho concentra...-se em pesquisar tcnicas corpreas e vocais de representao teatral para atores e bailarinos. A base desta tcnica est na fisicalidade do ator. O trabalho fiindamenta-se nas teorias e prticas do teatro contemporneo e na investigao de formas...

Icle, Gilberto

1999-10-01

67

A comparison between HadCM3 integrations for COAPEC using Beowulf (UM version 4.5) and Cray T3E (UM version 4.4)  

E-print Network

A comparison between HadCM3 integrations for COAPEC using Beowulf (UM version 4.5) and Cray T3E (UM on a Cray T3E using Unified Model version 4.4, the other on a Beowulf cluster using UM version 4 community has expressed concern as to whether Beowulf clusters are suitable platforms for climate model

Matthews, Adrian

68

Cryptography and Schur's Conjecture UM Bozeman, November 19, 2004  

E-print Network

Cryptography and Schur's Conjecture UM Bozeman, November 19, 2004 Advertisement for our seminar of cryptography and fi- nite fields. Addition and multiplication on these keep financial data secure. Numbers polynomials used in Cryptography: Cyclic polynomials have the form x xn. The famous R

Fried, Michael

69

Architectural-Level Risk Analysis Using UMLy g  

E-print Network

6/12/2010 1 Architectural-Level Risk Analysis Using UMLy g IEEE Transactions on Software Introduction Background Risk analysis methodology Conclusion Discussion KAIST SE LAB 2010 2/27 #12;6/12/2010 2 at the architecture level is more beneficial than assessment at later development phases Risk analysis methodology

Bae, Doo-Hwan

70

Cinco Ws e um H para o jornalismo na web  

Microsoft Academic Search

A influncia da Internet nas mais diversas reas de interveno humana provocou alteraes profundas nas rotinas profissionais e ldicas dos cidados. No campo do jornalismo, a Internet influenciou fortemente a actividade profissional, permitindo ainda o aparecimento de um novo tipo de jornalismo comummente chamado ciberjornalismo, webjornalismo ou jornalismo digital. Embora as caractersticas deste novo tipo de jornalismo estejam perfeitamente identificadas

Joo Canavilhas

2008-01-01

71

Die Organisatoren des Summer Science Camps um Carmen Stadelhofer (Mitte)  

E-print Network

Die Organisatoren des Summer Science Camps um Carmen Stadelhofer (Mitte) freuten sich ber den angefhrt von einem ebenso frhlichen wie rstigen Seniorenpaar. Das sechste Summer Science Camp hat der Forschungsferien und des Science Camps fertigten Fluggerte an... und fhrten Experimente durch

Pfeifer, Holger

72

The International Space Station Urine Monitoring System (UMS)  

NASA Technical Reports Server (NTRS)

A device capable of making in-flight volume measurements of single void urine samples, the Urine Monitoring System (UMS), was developed and flown on seven U.S. Space Shuttle missions. This device provided volume data for each urine void from multiple crewmembers and allowed samples of each to be taken and returned to Earth for post-flight analysis. There were a number of design flaws in the original instrument including the presence of liquid carry-over producing invalid "actual" micturition volumes and cross-contamination between successive users from residual urine in "dead" spots". Additionally, high or low volume voids could not be accurately measured, the on-orbit calibration and nominal use sequence was time intensive, and the unit had to be returned and disassembled to retrieve the volume data. These problems have been resolved in a new version, the International Space Station (ISS) UMS, that has been designed to provide real-time in-flight volume data with accuracy and precision equivalent to measurements made on Earth and the ability to provide urine samples that are unadulterated by the device. Originally conceived to be interfaced with a U.S.-built Waste Collection System (WCS), the unit now has been modified to interface with the Russian-supplied Sanitary Hygiene Device (ASY). The ISS UMS provides significant advantages over the current method of collecting urine samples into Urine Collection Devices (UCDs), from which samples are removed and returned to Earth for analyses. A significant future advantage of the UMS is that it can provide an interface to analytical instrumentation that will allow real-time measurement of urine bioanalytes allowing monitoring of crewmember health status during flight and the ability to provide medical interventions based on the results of these measurements. Currently, the ISS UMS is scheduled to launch along with Node-3 on STS-130 (20A) in December 2009. UMS will be installed and scientific/functional verification completed prior to placing the instrument into operation. Samples collected during the verification sequence will be returned for analyses on STS-131 (19A) currently scheduled for launch in March 2010. The presence of a UMS on ISS will provide the capability to conduct additional collaborative human life science investigations among the ISS International Partners.

Feeback, Daniel L.; Cibuzar, Branelle R.; Milstead, Jeffery R.; Pietrzyk,, Robert A.; Clark, Mark S.F.

2009-01-01

73

TERESA PENA, PRESIDENTE DA SOCIEDADE PORTUGUESA DE FSICA, EM ENTREVISTA "UM PAS SEM CINCIA NO UM PAS  

E-print Network

TERESA PENA, PRESIDENTE DA SOCIEDADE PORTUGUESA DE FÍSICA, EM ENTREVISTA "UM PAÍS SEM CI?NCIA N?O ? Teresa Pena, Professora do Instituto Superior Técnico e Presidente da Sociedade Portuguesa de Física, em entrevista à Revista Pontos de Vista. Saiba mais da Sociedade Portuguesa de Física, uma entidade que tem como

Instituto de Sistemas e Robotica

74

Concepciones Alternativas de "Fotosintesis" en estudiantes Universitarios del curso basico de Biologia y posibles correcciones con el Modelo Educativo MODEF  

NASA Astrophysics Data System (ADS)

Concepciones Alternativas de Fotosntesis en estudiantes Universitariosdel curso bsico de Biologa y posibles correcciones con el Modelo Educativo MODEF El modelo educativo para la enseanza de Fotosntesis (MODEF) se implant para trabajar el problema de las concepciones alternativas (CA) en un curso de Biologa General. Se evaluaron los resultados en cuanto al logro del aprendizaje significativo. La pregunta central de la investigacin fue: Cmo aporta el modelo educativo en la didctica y comprensin del tema de fotosntesis? Se efectu una investigacin accin con una fase cuantitativa y una cualitativa. Para la fase cuantitativa se elabor una prueba para determinar las concepciones alternativas, se valid y se someti a los estudiantes que participaron en el estudio antes y despus de ofrecer la unidad de metabolismo celular. Los participantes eran estudiantes de primer ao de la Universidad de Puerto Rico en Bayamn (UPRB). Se llev a cabo un anlisis de consistencia interna de la prueba mediante el mtodo Alfa de Cronbach. Se analizaron las contestaciones a cada pregunta mediante la prueba de Ji cuadrado de contingencia, se efectu la prueba de t y el coeficiente r de Pearson. La fase cualitativa incluy la observacin participativa de la investigadora- profesora, las reflexiones de los estudiantes y la informacin de las entrevistas semi-estructuradas que se realizaron a tres estudiantes del curso. El anlisis se llev a cabo mediante el Modelo de Wolcott. Se trabajaron diez CA de las cuales siete fueron corregidas mediante el Modelo MODEF. Las actividades ms importantes para el proceso de aprendizaje incluyeron el trabajo de investigacin o bsqueda de informacin para hacer una presentacin digital, la elaboracin de tablas, los mapas de conceptos, el uso de visuales o videos y las analogas para explicar conceptos o procesos. En conclusin: se recomienda el uso del Modelo MODEF para la discusin del tema de Fotosntesis a base de los resultados cuantitativos y cualitativos de esta investigacin. El Comit Institucional para la Proteccin de los Seres Humanos en la Investigacin (CIPSHI) autoriz el estudio.

De Jesus Roman, Sandra

75

Acoplamento de Modelo No-Linear de Diodo com o Mtodo dos Elementos Finitos  

Microsoft Academic Search

Resumo ? Este trabalho apresenta o acoplamento fraco de diodos com o Mtodo dos Elementos Finitos. Os diodos so modelados atravs de uma equao no-linear e o acoplamento destes com o programa de elementos finitos realizado atravs do MATLAB. A aplicao se faz com o estudo passo a passo no tempo de um indutor alimentado por uma fonte de

Silvio Ikuyo Nabeta; Kay Hameyer; Herbert De Gersem

76

Bolet in de la Asociaci on Matem atica Venezolana, Vol. IX, No. 2 (2002) 109 Billares. Modelos con Din amicas Ca oticas  

Microsoft Academic Search

Resumen Se exponen en forma sencilla las relaciones del modelo de los gases de Boltzmann y su Hip otesis Erg odica con la moderna Teor ia Erg odica. Se da una descripci on de la formulaci on matem atica de la Teor ia de Billares y sus consecuencias en el modelo de las bolas duras. 1I n troducci on En

77

Links um und ber Lego Mindstorm RCX und NXT Einfhrungen  

E-print Network

Links um und über Lego Mindstorm RCX und NXT Einführungen Einführung LEGO RCX vs. NXT http://www.nxt-in-der-schule.de/lego-mindstorms-education-nxt-system/rcx-vs-nxt Essentials an NXT Tutorial http://www.ortop.org/NXT_Tutorial/html/essentials.html Lego öffnet den Zugang zur Firmware von Mindstorm-NXT Freie Programmierung nun ermöglicht! http

78

Assessment of Tropical Cyclone Track Forecast Errors using GDAPS (UM)  

NASA Astrophysics Data System (ADS)

After the Joint Typhoon Warning Center (JTWC) began issuing official five-day tropical cyclone (TC) forecasts in 2003, the Korea Meteorological Administration (KMA) started issuing official five-day forecasts of TCs in May 2012 after 2 year of beta test. Forming a selective consensus (SCON) by proper removal of a likely erroneous track forecast is hypothesized to be more accurate than the non-selective consensus (NCON) of all model tracks that are used for the five-day forecasts. Conceptual models describing large track error mechanisms, which are related to known tropical cyclone motion processes being misrepresented in the dynamical models, are applied to forecasts during the 2012 western North Pacific typhoon season by the Global Data Assimilation and Prediction System (GDAPS (UM N512 L70)) which is KMA's main operational model. GDAPS (UM) is one of consensus members used in making KMA's five-day forecasts and thus analysis of its track error tendencies would be useful for forming a SCON forecast. All 72-h track errors greater than 320 km are examined on the basis of the approach developed by Carr and Elsberry (2000a, b). Tropical-influenced error sources caused 37% (47 times / 126 erroneous forecasts) of the GDAPS (UM) large track forecast errors primarily because an incorrect beta effect-related process depicted by the model contributed to the erroneous forecasts. Midlatitude-influenced error sources accounted for 63% (79 times / 126 error cases) in the GDAPS (UM) erroneous forecasts mainly due to an incorrect forecast of the midlatitude system evolutions. It is proposed that KMA will be able to issue more reliable TC track information if a likely model track error is recognized by optimum use of conceptual models by Carr and Elsberry (2000a, b) and a selective consensus track is then the basis for an improved warning.

Kim, D.; Kim, J.; Chang, K.; Byun, K.; Lee, J.

2013-12-01

79

Vehicle Use Policy Outline the policy regarding vehicle use at the University of Michigan (U-M).  

E-print Network

(U-M). Policy 1. Vehicles owned or leased and furnished by the U-M are to be used exclusively for university business. 2. Operators must be U-M faculty, staff, students or contracted employees under the direct supervision of a U-M staff member. 3. All vehicles must be parked on U-M property (owned or leased

Kirschner, Denise

80

Modelo de incorporacin de tic en el proceso de innovacin docente para la implementacinde un b-learning  

Microsoft Academic Search

Los avances tecnolgicos en las ltimas dos dcadas han producido continuos cambios sociales dando paso a la Sociedad de la Informacin y del Conocimiento. Sin duda esto ha modificado y replanteado los modelos polticos, econmicos y culturales, siendo las instituciones de educacin quienes deben asumir el desafo de preparar a los individuos, para su actuacin en este nuevo escenario. En

Carola Bacigalupo Acua; Virginia Montao

2008-01-01

81

STRATIFIED\\/PCA: UN MTODO DE PROCESAMIENTO DE DATOS Y VARIABLES PARA LA CONSTRUCCIN DE MODELOS DE REDES NEURONALES  

Microsoft Academic Search

Resumen. Este artculo describe un mtodo para reducir observaciones y variables contenidas en grandes archivos de datos a nuevos conjuntos de datos cuyo tamao es mucho ms reducido. Estos nuevos conjuntos son confiables para mejorar tanto en calidad como en tiempo, la construccin de los modelos de redes neuronales. El mtodo, Stratified\\/PCA utiliza la tcnica de muestreo estratificado y anlisis

82

San Juan (Argentina): los espaoles y la metalurgia en las primeras dcadas del modelo de desarrollo vitivincola  

Microsoft Academic Search

El objetivo de la investigacin es indagar acerca de la participacin de espaoles en la constitucin de la industria metalrgica de la provincia de San Juan, en el centro-oeste de la Argentina, especialmente la vinculada con la vitivinicultura, en el primer medio siglo de desarrollo del modelo vitivincola regional. Sobre la base de estudios precedentes realizados por el autor, se

Eduardo Prez Romagnoli

2007-01-01

83

1a. Prova Modelo 1. A trajedia que ocorreu com o ^onibus espacial Challenger e seus astro-  

E-print Network

¸camento real do motor do foguete da nave (Presidential Comission on the Space Shuttle Challenger Ac- cident1a. Prova ­ Modelo Data: 1. A traj´edia que ocorreu com o ^onibus espacial Challenger e seus astro

Lopes Garcia, Nancy

84

Modelos hierarquicos bayesianos para estudar a distribuicao espacial da infestacao da broca do cafe em nivel local  

Microsoft Academic Search

Resumo Estudar a distribuicao espacial de pragas em sistemas agricolas pode fornecer informacao importante sobre os mecanismos de dispersao das especies e sua interacao com fatores ambientais, sendoutil tambem no desenvolvimento de planos de amostragem, na otimizacao de programas de manejo integrado de pragas e no planejamento de experimentos. Neste trabalho foram comparados varios modelos para estudar a variacao es-

Clarice G. B. Demetrio; Renato M. Assunc; Roseli A. Leandro

85

En la bsqueda de caractersticas en eyecciones coronales de masa que discriminen entre dos paradigmas fsicos en modelos de ECMs  

NASA Astrophysics Data System (ADS)

Se conocen tres diferentes fenmenos de gran escala que ocurren en la atmsfera solar, denominados eyecciones coronales de masa (ECMs), protuberancias eruptivas y grandes fulguraciones de dos bandas. Estos fenmenos estn estrechamente relacionados y podran ser distintas manifestaciones de un nico proceso fsico. Las ECMs son definidas como eyecciones de gran escala de masa y flujo magntico desde la baja corona al espacio interplanetario. Desde su descubrimiento en los '70, muchos modelos han sido propuestos para explicar su origen y evolucin. La explicacin fsica de las ECMs es un tema de debate intenso. No obstante, los modelos pueden sintetizarse en dos grandes grupos: 1) los modelos de inyeccin de flujo y 2) los modelos de almacenamiento y liberacin. En este trabajo, se presentan los estudios realizados con una serie de eventos observados con el corongrafo MICA (Mirror Coronograph for Argentina), el telescopio en H-alfa HASTA (H-alpha Solar Telescope for Argentina) y los corongrafos C2 y C3 de la sonda SOHO (Solar and Heliospheric Observatory). Los eventos que pudieron ser identificados como ECMs son contrastados dentro del esquema de los dos paradigmas tericos propuestos.

Paissan, G.; Stenborg, G.; Rovira, M.

86

Um Framework para a Simulao de Redes Mveis Ad hoc Alexandre Mele & Markus Endler  

E-print Network

Um Framework para a Simulao de Redes Mveis Ad hoc Alexandre Mele & Markus Endler Departamento de, um framework flexvel para a prototipao e simulao de protocolos para redes mveis ad hoc. Depois.11. Palavras-chave Redes Mveis Ad hoc, Framework, Simulao, Roteamento, Prototipao de Protocolos #12;Um

Endler, Markus

87

UM Computer Science 2014-2015 Parent/Guardian Consent & Contact Form  

E-print Network

UM Computer Science 2014-2015 Parent/Guardian Consent & Contact Form Print Child's Name: __________ I/we give our son/daughter permission to participate in the UM Computer Science workshop to the provision of any necessary emergency treatment to my son/daughter during the program by UM Computer Science

Chu, Xi

88

STS-40 Exp. No. 192 urine monitoring system (UMS) on OV-102's middeck  

NASA Technical Reports Server (NTRS)

STS-40 Experiment No. 192, Fluid-Electrolyte Regulation During Space Flight, urine monitoring system (UMS) is set up on the middeck of Columbia, Orbiter Vehicle (OV) 102, at the side hatch. The UMS is attached to OV-102's waste collection system (WCS). The urine specimen tray with sample tubes appears to the right of the UMS equipment.

1991-01-01

89

Resultados do desenvolvimento de um propulsor plasma no Brasil  

NASA Astrophysics Data System (ADS)

Uma das partes mais importantes de um satlite o controle de atitude do mesmo. E se tratando de um satlite cientfico, a ateno para este sistema deve ser redobrada. Uma possibilidade atraente para executar esta tarefa a propulso eltrica. Aqui, mostraremos resultados obtidos pelo propulsor plasma PHALL-01, desenvolvido na Universidade de Braslia entre 2000 e 2003. Este derivado do propulsor russo SPT-100 (Stationary Plasma Thruster), mas com o emprego inovador de um arranjo de ims permanentes como fonte do campo magntico, este ltimo o agente da acelerao do plasma. Esta alterao foi motivada pelo objetivo de que o mesmo operasse com o mnimo de potncia eltrica. A partir da formulao terica do mecanismo de acelerao, tendo como base as equaes da magnetohidrodinmica, pode-se obter vnculos sob os quais o propulsor pudesse ser construdo. O mais forte destes o que dita a topologia do campo magntico. Sendo assim, foram realizadas simulaes computacionais, que definiram a geometria do propulsor. Aps construdo, este foi diagnosticado usando-se sondas de Langmuir e analisadores de energia. Como resultados, obtivemos a distribuio espacial da temperatura, densidade e potencial do plasma, bem como a distribuio angular do feixe produzido pelo mesmo em vrios regimes de operao. O espectro de energia do feixe de plasma tambm foi medido, indicando ons de at 560eV. Combinando estes resultados, calculou-se o empuxo do propulsor: 84mN; e o impulso especfico: 1083s. Estes demonstram que o mesmo estar qualificado, num futuro prximo, para o emprego no controle de atitude de satlites cientficos, ou at mesmo como parte do conjunto propulsor primrio, responsveis pela transferncia de rbitas.

Ferreira, I. S.; Ferreira, J. L.

2003-08-01

90

Common Correlations between 60, 100 and 140 um Intensities in the Galactic Plane and Magellanic Clouds  

E-print Network

We investigate the far-infrared SED of the Galaxy and the Magellanic Clouds by using the COBE (COsmic Background Explorer) / DIRBE (Diffuse InfraRed Background Experiment) ZSMA (Zodi - Subtracted Mission Average) maps at wavelengths of 60 um, 100 um and 140 um. We analyze three regions: the Galactic plane region with the Galactic latitude |b|color correlation between the 140 - 100 um and 60 - 100 um intensity ratios in all the three galaxies. Although this color correlation cannot be explained by any existing model, it fits very well the far-infrared color of nearby star forming galaxies.

Yasunori Hibi; Hiroshi Shibai; Mitsunobu Kawada; Takafumi Ootsubo; Hiroyuki Hirashita

2006-04-11

91

STAR CLUSTER COMPLEXES AND THE HOST GALAXY IN THREE H II GALAXIES: Mrk 36, UM 408, AND UM 461  

SciTech Connect

We present a stellar population study of three H II galaxies (Mrk 36, UM 408, and UM 461) based on the analysis of new ground-based high-resolution near-infrared J, H, and K{sub p} broadband and Br{gamma} narrowband images obtained with Gemini/NIRI. We identify and determine the relative ages and masses of the elementary star clusters and/or star cluster complexes of the starburst regions in each of these galaxies by comparing the colors with evolutionary synthesis models that include the contribution of stellar continuum, nebular continuum, and emission lines. We found that the current star cluster formation efficiency in our sample of low-luminosity H II galaxies is {approx}10%. Therefore, most of the recent star formation is not in massive clusters. Our findings seem to indicate that the star formation mode in our sample of galaxies is clumpy, and that these complexes are formed by a few massive star clusters with masses {approx}>10{sup 4} M{sub Sun }. The age distribution of these star cluster complexes shows that the current burst started recently and likely simultaneously over short timescales in their host galaxies, triggered by some internal mechanism. Finally, the fraction of the total cluster mass with respect to the low surface brightness (or host galaxy) mass, considering our complete range in ages, is less than 1%.

Lagos, P. [Centro de Astrofisica da Universidade do Porto, Rua das Estrelas, 4150-762 Porto (Portugal); Telles, E. [Observatorio Nacional, Rua Jose Cristino, 77, Rio de Janeiro 20921-400 (Brazil); Nigoche-Netro, A. [Instituto de Astrofisica de Andalucia (IAA), Glorieta de la Astronomia s/n, 18008 Granada (Spain); Carrasco, E. R., E-mail: plagos@astro.up.pt, E-mail: etelles@on.br, E-mail: nigoche@iaa.es, E-mail: rcarrasco@gemini.edu [Gemini Observatory/AURA, Southern Operations Center, Casilla 603, La Serena (Chile)

2011-11-15

92

Star Cluster Complexes and the Host Galaxy in Three H II Galaxies: Mrk 36, UM 408, and UM 461  

NASA Astrophysics Data System (ADS)

We present a stellar population study of three H II galaxies (Mrk 36, UM 408, and UM 461) based on the analysis of new ground-based high-resolution near-infrared J, H, and Kp broadband and Br? narrowband images obtained with Gemini/NIRI. We identify and determine the relative ages and masses of the elementary star clusters and/or star cluster complexes of the starburst regions in each of these galaxies by comparing the colors with evolutionary synthesis models that include the contribution of stellar continuum, nebular continuum, and emission lines. We found that the current star cluster formation efficiency in our sample of low-luminosity H II galaxies is ~10%. Therefore, most of the recent star formation is not in massive clusters. Our findings seem to indicate that the star formation mode in our sample of galaxies is clumpy, and that these complexes are formed by a few massive star clusters with masses gsim104 M sun. The age distribution of these star cluster complexes shows that the current burst started recently and likely simultaneously over short timescales in their host galaxies, triggered by some internal mechanism. Finally, the fraction of the total cluster mass with respect to the low surface brightness (or host galaxy) mass, considering our complete range in ages, is less than 1%.

Lagos, P.; Telles, E.; Nigoche-Netro, A.; Carrasco, E. R.

2011-11-01

93

Star Cluster Complexes and the Host Galaxy in Three HII Galaxies: Mrk 36, UM 408, and UM 461  

E-print Network

We present a stellar population study of three HII galaxies (Mrk 36, UM 408, and UM 461) based on the analysis of new ground-based high resolution near-infrared J, H and Kp broad-band and Br narrow-band images obtained with Gemini/NIRI. We identify and determine relative ages and masses of the elementary star clusters and/or star cluster complexes of the starburst regions in each of these galaxies by comparing the colors with evolutionary synthesis models that include the contribution of stellar continuum, nebular continuum and emission lines. We found that the current star cluster formation efficiency in our sample of low luminosity HII galaxies is ~10%. Therefore, most of the recent star formation is not in massive clusters. Our findings seem to indicate that the star formation mode in our sample of galaxies is clumpy, and that these complexes are formed by a few massive star clusters with masses > 10^4 Mo. The age distribution of these star cluster complexes shows that the current burst started recently an...

Lagos, Patricio; Nigoche-Netro, A; Carrasco, Eleazar Rodrigo

2011-01-01

94

Anlise de padres e processos de ocupao para a construo de modelos na Amaznia: Experimentos em Rondnia  

E-print Network

Análise de padrões e processos de ocupação para a construção de modelos na Amazônia: Experimentos Caixa Postal 515 - 12201-970 - São José dos Campos - SP, Brasil {isabel, anapaula, miguel, gilberto a região. Os procedimentos envolveram uma fase de diagnóstico com laboratório, campo e integração de dados

Camara, Gilberto

95

Anlisis de la medida de distancia entre documentos y consultas en el modelo lgico de Recuperacin de  

E-print Network

con cambio mínimo. Palabras claves: ranking; similaridad; mo- delos; lógica; revisión de creencias. 1 (RI) basado en Lógica Clási- ca Proposicional y Revisión de Creencias (RC) [8][9][11]. En los modelos Creencias con el objeto de obtener revisión en tiempo polinomial [4]. En nuestro caso el objetivo es obtener

Barreiro, Alvaro

96

Petrology and provenance of the Modelo Formation, Santa Monica Mountains, southern California: Constraints on displacement along the San Gabriel fault  

SciTech Connect

The Modelo Formation of the central and eastern Santa Monica Mountains is an Upper Miocene siliceous-diatomaceous shale and sandstone submarine-fan sequence, which was deposited in the northern Los Angeles basin. The graded, poorly sorted, and angular sandstones comprise channelized mid-fan facies deposited at middle-to-upper-bathyal depths; they are arkosic (58% feldspar) with variable amounts of matrix. Published paleocurrent data yield a south-southwest flow direction. The direction of the paleocurrents constrains the timing of deposition to be after rotation of the Transverse Ranges (after 15 Ma.) Biostratigraphic data indicate that deposition commenced during the Late Mohnian (after 10.8 Ma). QFL plots indicate that the provenance was basement uplift to transitional arc (e.g. Dickinson, 1985). The meta-igneous lithic fragments and the high feldspar content of the rocks suggest an anorthositic, gneissic, tonalitic, or mylonitic source terrane. Sandstone modes and conglomerate clasts indicate that the basal section was derived locally from the Santa Monica Slate. The upper section represents a volcanic unroofing sequence, as evidenced by decreasing volcanic lithic fragments upsection. Crowell (1982) suggested 60 km of right slip on the San Gabriel fault between 12 and 5 Ma. Palinspastic restoration places the Santa Monica Mountains immediately south of the San Gabriel Mountains, which wee the likely source for Modelo sandstones. Based on plagioclase composition (95% oligoclase and albite) of Modelo sandstone, the anorthosite body in the western San Gabriel Mountains is an unlikely source. However, a source in the mylonitic, gneissic, and tonalitic bodies of the eastern San Gabriel Mountains could explain the observed petrography. This source for the Modelo is consistent with 60 km of movement on the San Gabriel fault.

Rumelhart, P.E.; Ingersoll, R.V. (Univ. of California, Los Angeles, CA (United States). Dept. of Earth and Space Sciences)

1993-04-01

97

A high performance active pixel sensor with 0.18um CMOS color imager technology  

Microsoft Academic Search

A high performance 0.18 um CMOS image sensor technology has been successfully developed and fully characterized. 3T active pixel sensor (APS) with non-silicide source\\/drain process is provided to reduce dark current and increase photoresponse. By optimizing photodiode junction profile with the appropriate thermal cycle, the dark current can be drastically reduced. Small pixel pitch 2.8um~4.0um demonstrates the low dark current

Shou-Gwo Wuu; Ho-Ching Chien; Dun-Nian Yaung; Chien-Hsien Tseng; C. S. Wang; Chin-Kung Chang; Yu-Kung Hsaio

2001-01-01

98

Recovery Act: Novel Kerf-Free PV Wafering that provides a low-cost approach to generate wafers from 150um to 50um in thickness  

SciTech Connect

The technical paper summarizes the project work conducted in the development of Kerf-Free silicon wafering equipment for silicon solar wafering. This new PolyMax technology uses a two step process of implantation and cleaving to exfoliate 50um to 120um wafers with thicknesses ranging from 50um to 120um from a 125mm or 156mm pseudo-squared silicon ingot. No kerf is generated using this method of wafering. This method of wafering contrasts with the current method of making silicon solar wafers using the industry standard wire saw equipment. The report summarizes the activity conducted by Silicon Genesis Corporation in working to develop this technology further and to define the roadmap specifications for the first commercial proto-type equipment for high volume solar wafer manufacturing using the PolyMax technology.

Fong, Theodore E.

2013-05-06

99

Modelagem 3D e animao para o desenvolvimento de um modelo virtual interativo em realidade virtual (VRML) na rea de moda 3D modeling and animation for the development of an interactive virtual model in virtual reality (VRML) in fashion  

Microsoft Academic Search

This article describes the development of a project that combines modeling and animation of three-dimensional objects (virtual model, clothing, environment) in the software 3D Studio Max with VRML (Virtual Reality Modeling Language). The project allows various interactions between the user and the environment developed. The main interaction is the choice of clothing, in which different parts can be proven in

Andressa Schneider Alves; Jos Lus Farinatti Aymone

2009-01-01

100

Draft Genome Sequence of Herpotrichiellaceae sp. UM238 Isolated from Human Skin Scraping  

PubMed Central

Herpotrichiellaceae spp. are known to be opportunistic human pathogens. Here, we report the ~28.46-Mb draft genome of Herpotrichiellaceae sp. UM238, isolated from human skin scraping. The UM238 genome was found to contain many classes of protective genes that are responsible for fungal adaptation under adverse environmental conditions. PMID:23409267

Yew, Su Mei; Chan, Chai Ling; Tan, Ruixin; Soo-Hoo, Tuck Soon; Na, Shiang Ling; Hassan, Hamimah; Ngeow, Yun Fong; Hoh, Chee-Choong; Lee, Kok Wei; Yee, Wai-Yan

2013-01-01

101

Um Framework para Proviso de QoS em Redes Mveis Sem Fio1  

E-print Network

Um Framework para Proviso de QoS em Redes Mveis Sem Fio1 Luciana dos Santos Lima, Antnio Tadeu A proviso de QoS em redes mveis sem fio integrando solues isoladas encontradas na literatura. Esses descrita atravs de um cenrio simulado em que servios integrados so oferecidos sobre uma rede IP Mvel

Colcher, Srgio

102

CQMsg - Classificador e Qualificador de Mensagens: um instrumento para apoio avaliao de fruns temticos  

Microsoft Academic Search

Most distance learning educational platforms provi de devices to support exchange of asynchronous messages. This art icle presents a tool developed to support studies on the evaluation base d on posted messages in educational discussion forums. Resumo. A maioria das plataformas educacionais utilizadas em cursos a distncia prov um dispositivo capaz de ser utiliza do como um local concentrador de

Marcos Elia; Ilan Chamovitz

103

Usina de cincias: um espao pedaggico para aprendizagens mltiplas  

NASA Astrophysics Data System (ADS)

Entendemos que o Ensino de Astronomia especialmente apropriado para motivar os alunos e aprofundar contedos em diversas reas do conhecimento, pois envolve temas ligados Fsica, Matemtica, Qumica, Computao, Tratamento de Imagens e Instrumentao de Alta Preciso, alm daqueles pertinentes as reas de Geografia, Histria e Antropologia. Contudo, apesar do carter interdisciplinar que esta cincia possui, a realidade atual que a maioria dos professores em sala de aula no foram devidamente capacitados, durante o perodo de formao acadmica, para ministrar contedos de Astronomia nos atuais Ensinos Fundamental e Mdio. Neste trabalho, discutiremos de maneira ampla, num primeiro momento, a realidade do atual ensino de cincias praticado no Estado da Bahia, apontando por dependncia administrativa, o crescimento e a reduo do nmero de escolas, da taxa de analfabetismo por faixa etria, da escolarizao, do atendimento, da aprovao, reprovao e abandono, de equipamentos e laboratrios e o grau de formao dos nossos atuais professores em pleno exerccio de atividade docente. Num segundo momento, discutiremos o papel do Observatrio Astronmico Antares/UEFS dentro desse contexto, ou seja, suas aes implementadas ao longo dos ltimos anos e em particular, o recente projeto de extenso Ensino e Difuso de Astronomia, financiado pela Fundao Vitae, que procura traduzir no ldico, no brincar de cincias, um espao pedaggico para aprendizagens mltiplas. Neste, o papel do professor multiplicador associado ao laboratrio de kits didticos, de fcil construo e manipulao (alguns dos quais sero mostrados), perfazem os principais veculos para o desenvolvimento de conhecimentos, atitudes, habilidades e valores que preparam os nossos alunos para a carreira tcnico-cientfica e para sua participao crtica e criativa na Sociedade.

Martin, V. A. F.; Poppe, P. C. R.; Orrico, A. C. P.; Pereira, M. G.

2003-08-01

104

Development of Lagrangian vertical coordinate for UM ENDGame dynamical core  

NASA Astrophysics Data System (ADS)

Some theoretical reasons and results from numerical atmospheric models support the hypothesis that Lagrangian conservation properties and related properties of a numerical model dynamical core can be improved by the use of a Lagrangian or quasi-Lagrangian vertical coordinate (LVC). This may lead to improved accuracy for long range forecasts and improved physical realism for climate simulations. In this research we implement the LVC in ENDGame, the next generation dynamical core of the atmospheric Unified Model (UM), currently being developed by the Met Office. Since Lagrangian surfaces fold over time, locations of coordinate surfaces need to be reinitialised and values of atmospheric fields remapped to new surface levels. Some of desirable properties of remapping schemes are conservation of total mass, energy and entropy, as well as preservation of balance. Firstly, we implemented LVC formulation in 1D version of the ENDGame dynamical core, based on the compressible Euler equations. The vertical advection terms are no longer calculated for the implicit time scheme used here, thus reducing the numerical cost. The eigenvalues of numerically calculated normal modes for both idealised hydrostatic initial state and some real sounding profiles indicate stability of 1D LVC formulation. Next, we tested various remapping strategies and methods. Some strategies focus on conservation properties through choice of remapped quantities (total model mass, energy and entropy) while others on preserving balance (separately remapping hydrostatic balance and non-hydrostatic part). We implement various remapping methods, like piecewise polynomial (parabolic, PPM, and quartic, PQM) and piecewise spline (PSM) methods. Mass is conserved due to exact evaluation of cell averages between old and new coordinate levels. Depending on the choice of remapped quantity, either total energy or entropy can be conserved together with the mass, but apparently not both of them. We also explore the influence of boundary conditions (BC) on polynomial reconstruction in remapping schemes and subsequently prognostic values in lower- and uppermost model layers. Further research addresses the frequency of remapping in dependance of space- and timescales of Lagrangian surfaces folding. In addition, the choice of new model levels is investigated, leading towards the full 3D model version.

Kavcic, I.; Thuburn, J.

2012-04-01

105

AVALIAO DAS DEMANDAS E OFERTAS HDRICAS NA BACIA DO RIO SO FRANCISCO USANDO MODELO DE REDE DE FLUXO  

Microsoft Academic Search

RESUMO: Estima-se, atualmente, que existam no Brasil cerca de trs milhes de hectares irrigados e algo em torno de 355.000 hectares de rea irrigada na bacia do rio So Francisco. Sendo a irrigao considerada um uso consuntivo, grande parte da gua empregada fica indisponvel para a produo de energia e demais usos. O abastecimento humano, a dessedentao animal e o

Alan Vaz Lopes; Marcos Airton de Sousa Freitas

106

September 2012 Help Sheet: Using "UM Jobs" to Hire Tenure-Track Faculty  

E-print Network

announcement that application materials must be submitted through the UM Jobs website: http://umjobs.silkroad announcement, HRS will post it at http://umjobs.silkroad.com, and in Higher Education and Inside Higher

Vonessen, Nikolaus

107

Reliability and clinical validity of UM-CIDI DSM-III-R generalized anxiety disorder  

Microsoft Academic Search

This is the first in a series of reports on the long-term test-retest reliability and procedural validity of the UM-CIDI, a modified version of the Composite International Diagnostic Interview used in the US National Comorbidity Survey (NCS). This report focuses on DSM-III-R Generalized Anxiety Disorder (GAD). The NCS administered the UM-CIDI to a nationally representative sample of 8098 respondents in

Hans-Ulrich Wittchen; Ronald C. Kessler; Shanyang Zhao; Jamie Abelson

1995-01-01

108

Desenvolvimento de um data logger porttil para sinais de movimento utilizando cartes MMC  

Microsoft Academic Search

Resumo - Neste artigo descreve-se o desenvolvimento de um data logger porttil para armazenagem de sinais relacionados ao movimento humano. O sistema utiliza cartes MultiMediaCard como dispositivo de armazenamento de alta capacidade e um microcontrolador com oito canais de converso A\\/D para entrada dos sinais analgicos provenientes de sensores de movimento ou eletrodos de eletromiografia. A taxa de amostragem pode

R. E. M. Farias; J. P. J Conti; E. F. Manffra; P. Nohama

109

UM-PRS: An Implementation Of The Procedural Reasoning System For Multirobot Applications  

Microsoft Academic Search

The Procedural Reasoning System (PRS) is a generalpurpose reasoning system that is particularlysuited for use in domains in which there are predeterminedprocedures for handling the situations thatmight arise. We have just completed an implementationof PRS written in C++, which we call theUniversity of Michigan Procedural Reasoning System(UM-PRS). In this paper, we show how UM-PRS providesa critical level of representation for

Jaeho Lee; Marcus J. Huber; Edmund H. Durfee; Patrick G. Kenny

1994-01-01

110

UM-PRS V3.0 Programmer and User Guide  

Microsoft Academic Search

The University of Michigan Procedural Reasoning System (UM-PRS) is an object--oriented(C++) implementation of PRS as described in [1, 2, 3, 4, 6] and other papers. This document'sprimary purpose is to explain everything that is required to create an UM-PRS application. Toa lesser extent, the document will familiarize readers to PRS's concepts. For a more completediscussion of the theoretical and philosophical

Marcus J. Huber; Jaeho Lee; Patrick Kenny; Edmund H. Durfee

1994-01-01

111

O ensino de Fsica Quntica na perspectiva sociocultural: uma anlise de um debate entre futuros professores mediado por um interfermetro virtual de Mach-Zehnder  

Microsoft Academic Search

Resumo: O presente trabalho apresenta uma anlise das interaes discursivas de nove estudantes do curso de licenciatura em fsica em uma atividade didtica mediada por um interfermetro virtual de Mach-Zehnder. O objetivo desse estudo analisar as tenses nos enunciados dos alunos luz do referencial sociocultural e avaliar em que medida os significados em fsica quntica so criados e

Alexandro Pereira; Fernanda Ostermann; Cludio Cavalcanti

112

Influence of a Novel Inhibitor (UM8190) of Prolylcarboxypeptidase (PRCP) on Appetite and Thrombosis  

PubMed Central

Preclinical pharmacological characterization of a novel inhibitor (UM8190) of prolylcarboxypeptidase (PRCP) was investigated. We synthesized and evaluated a library of proline-based analogs as prospective recombinant PRCP (rPRCP) inhibitors and inhibitors of PRCP-dependent prekallikrein (PK) activation on human pulmonary artery endothelial cells (HPAEC). Among the newly synthesized compounds, UM8190 was further characterized in vivo using methods that encompassed a mouse carotid artery thrombosis model and animal model of food consumption. (S)-N-dodecyl-1-((S)-pyrrolidine-2-carbonyl) pyrrolidine-2-carboxamide [Compound 3 (UM8190)] was selected for further evaluation from the initial assessment of its PRCP inhibitory action (Ki= 43 M) coupled with its ability to block PRCP-dependent PK activation on HPAEC (Ki= 34 M). UM8190 demonstrated excellent selectivity against a panel of carboxypeptidases and serine proteases and blocked bradykinin (BK) generation and BK-induced permeability by 100%, suggesting that it may be useful in preventing the local production of large amounts of BK. Furthermore, UM8190 showed an anorexigenic effect when systemically administered to fasted mice, reducing food intake in a dose- and time-dependent manner. In a mouse carotid artery thrombosis model, it also demonstrated an antithrombotic effect. UM8190 is a selective PRCP inhibitor and it may represent a new anorexigenic, and antithrombotic drug, that works by inhibiting PRCPmediated mechanisms. PMID:22664251

Rabey, F. M.; Gadepalli, R.S.V.S.; Diano, S.; Cheng, Q.; Tabrizian, T.; Gailani, D.; Rimoldi, J.M.; Shariat-Madar, Z.

2015-01-01

113

Transformacin del campus para el desarrollo de un modelo social integral y su interaccin con el entorno territorial Tabla I. Descripcin de las actuaciones del proyecto  

E-print Network

, promociones entre los estudiantes y presencia activa en los actos de graduacin, newsletters, redes sociales yTransformacin del campus para el desarrollo de un modelo social integral y su interaccin con el colectivo de referencia en los mbitos de ciencias sociales, de la comunicacin y de la biomedicina

Geffner, Hector

114

PROPUESTA DE MODELO DE GESTIN ESTRATGICA EN LA FILOSOFA EMPRESARIAL EN EL SECTOR TURSTICO DE LA CIUDAD DE CARTAGENA DE INDIAS  

Microsoft Academic Search

En este trabajo se analizan las variables de implementacin de los modelos de gestin a partir del estudio de las propuestas de Mckinsey, Ohmae, Ansoff, Porter, Jack, y Kaplan, y su influencia sobre la filosofa empresarial como la fase inicial para el desarrollo de las condiciones de implementacin de un proceso basado en la realidad de las pymes de la

Jorge Luis Del Rio Cortina; Juan David Seplveda Chaverra; Lourdes Isabel Merio Stand

2009-01-01

115

El anlisis de la coyuntura industrial en la coyuntura industrial en la comunidad autonma del Pas Vasco mediante el uso de modelos univarientes  

Microsoft Academic Search

En este trabajo se analiza la actividad industrial, a nivel agregado, en la Comunidad Autnoma del Pas Vasco en los ltimos cuatro aos. La variable sobre la que se centra el anlisis es el Indice de Produccin Industrial del Pas Vasco (IPIPV) y la metodologa seguida es la expuesta en Espaa (1990). Con base a un modelo Arima con Anlisis

Eduardo Morales; J. Flix Izquierdo; Antoni Espasa

116

Un nuevo modelo norteamericano de consumo en la periferia de la Ciudad de Mxico: Mundo E, centro de Entretenimiento y Compras  

E-print Network

de esta historia comn se destaca en la integracin del ocio al comercio, para producir unos del ocio al comercio y presentar los proyectos correspondientes en la Ciudad de Mxico. Una segunda DE UN NUEVO MODELO INTERNACIONAL DE ESPACIO DE CONSUMO EN LA CIUDAD DE MXICO El surgimiento

Paris-Sud XI, Universit de

117

SELECCIN DE UN MODELO CPULA PARA EL AJUSTE DE DATOS BIVARIADOS DEPENDIENTES SELECTION OF A COPULA MODEL TO FIT BIVARIATE DEPENDENT DATA  

Microsoft Academic Search

RESUMEN: El modelamiento en problemas que involucran datos bivariados dependientes es muy importante en diversas reas del conocimiento, tales como: finanzas, actuara, confiabilidad y anlisis de supervivencia. En la literatura, se conocen algunos modelos cpula que han sido ampliamente utilizados para modelar distribuciones multivariadas dependientes, entre los cuales se destaca la clase de cpulas Arquimedianas. En este artculo, se presenta

CARLOS MARIO LOPERA; MARIO CSAR JARAMILLO; LUIS DAVID ARCILA

2009-01-01

118

The merging dwarf galaxy UM 448: chemodynamics of the ionized gas from VLT integral field spectroscopy  

E-print Network

Using VLT/FLAMES optical IFU observations, we present a detailed study of UM 448, a nearby Blue Compact Galaxy (BCG) previously reported to have an anomalously high N/O abundance ratio. NTT/SuSI2 images reveal a morphology suggestive of a merger of two systems of contrasting colour, whilst our H-alpha emission maps resolve UM 448 into three separate regions that do not coincide with the stellar continuum peaks. UM 448 exhibits complex emission line profiles, with lines consisting of a narrow, central component, an underlying broad component and a third, narrow blue-shifted component. Radial velocity maps show signs of solid body rotation across UM 448, with a projected rotation axis that correlates with the continuum morphology of the galaxy. A spatially-resolved, chemodynamical analysis is presented. Whilst the eastern tail of UM 448 has electron temperatures (Te) that are typical of BCGs, we find a region within the main body of the galaxy where the narrow and broad [O III] 4363 line components trace temper...

James, B L; Barlow, M J; Walsh, J R; Westmoquette, M S

2012-01-01

119

UM-PRS: An implementation of the procedural reasoning system for multirobot applications  

NASA Technical Reports Server (NTRS)

The Procedural Reasoning System (PRS) is used in applications where predetermined situations might arise. The UM-PRS provides a reasoning system that represents robotic applications even in unpredictable domains, such as the robotic reconnaissance task domain outlined here. UM-PRS incorporates a changing context, rather than relying solely on a prearranged plan. The UM-PRS here provides representation important in the reasoning and interface between a mission plan and the executable map of an outdoor vehicle that changes its behavior based on what it comes in contact with in its environment. PRS is thus used in the dynamic control of such a vehicle, providing the basis for coordinating the joint task of multiple robotic vehicles by the their individual observations and representation.

Lee, Jaeho; Huber, Marcus J.; Durfee, Edmund H.; Kenny, Patrick G.

1994-01-01

120

High performance 0.25-um CMOS color imager technology with non-silicide source\\/drain pixel  

Microsoft Academic Search

A high performance 0.25 um CMOS image sensor technology has been developed to overcome device scaling and process issues. Non-silicide source\\/drain pixel (3 transistors, 3.3 um3.3 um, fill factor: 28%) is provided to reduce dark current and increase photoresponse. By optimizing thermal oxide in STI structure, double ion implanted source\\/drain junction and using H2 annealing, the dark current can be

Shou-Gwo Wuu; Dun-Nian Yaung; Chien-Hsien Tseng; Ho-Ching Chien; Chung S. Wang; Yean-Kuen Hsiao; Chin-Kung Chang; B. J. Chang

2000-01-01

121

Draft Genome Sequence of Ochroconis constricta UM 578, Isolated from Human Skin Scraping  

PubMed Central

Ochroconis constricta is a soilborne dematiaceous fungus that has never been reported to be associated with human infection. Here we report the first draft genome sequence of strain UM 578, isolated from human skin scraping. The genomic information revealed will contribute to a better understanding of this species. PMID:24744321

Chan, Chai Ling; Yew, Su Mei; Na, Shiang Ling; Tan, Yung-Chie; Lee, Kok Wei; Yee, Wai-Yan; Ngeow, Yun Fong

2014-01-01

122

Nas redes sociais, a influncia de cada um vai muito alm do que se pensava  

E-print Network

Nas redes sociais, a influncia de cada um vai muito alm do que se pensava Uma equipa de cientistas portugueses mostrou que, nas redes online como o Facebook ou o Twitter, a influncia das opinies Tquio, as opinies que estamos constantemente a proclamar perante os nossos amigos nas redes sociais

Instituto de Sistemas e Robotica

123

MetUM-GOML1: a near-globally coupled atmosphere-ocean-mixed-layer model  

NASA Astrophysics Data System (ADS)

Well-resolved air-sea interactions are simulated in a new ocean mixed-layer, coupled configuration of the Met Office Unified Model (MetUM-GOML), comprising the MetUM coupled to the Multi-Column K Profile Parameterization ocean (MC-KPP). This is the first globally coupled system which provides a vertically resolved, high near-surface resolution ocean at comparable computational cost to running in atmosphere-only mode. As well as being computationally inexpensive, this modelling framework is adaptable - the independent MC-KPP columns can be applied selectively in space and time - and controllable - by using temperature and salinity corrections the model can be constrained to any ocean state. The framework provides a powerful research tool for process-based studies of the impact of air-sea interactions in the global climate system. MetUM simulations have been performed which separate the impact of introducing interannual variability in sea surface temperatures (SSTs) from the impact of having atmosphere-ocean feedbacks. The representation of key aspects of tropical and extratropical variability are used to assess the performance of these simulations. Coupling the MetUM to MC-KPP is shown, for example, to reduce tropical precipitation biases, improve the propagation of, and spectral power associated with, the Madden-Julian Oscillation and produce closer-to-observed patterns of springtime blocking activity over the Euro-Atlantic region.

Hirons, L. C.; Klingaman, N. P.; Woolnough, S. J.

2015-02-01

124

SciMulator: Um Ambiente de Simulao de Workflows Cientficos em Redes P2P*  

E-print Network

SciMulator: Um Ambiente de Simulao de Workflows Cientficos em Redes P2P* Jonas Dias1 , Carla networks. Resumo. O crescimento dos experimentos cientficos em larga escala motiva a busca por ambientes paradigma Many Task Computing (MTC). Ambientes Peer-to-Peer (P2P) podem atender esta demanda, pelo fcil

Paris-Sud XI, Universit de

125

Automating the Hunt for Volcanoes on Venus , U.M. Fayyad  

E-print Network

Automating the Hunt for Volcanoes on Venus M.C. Burl ¢¡ , U.M. Fayyad ¡ , P. Perona , P. Smyth on classical filtering and statistical pattern recog- nition techniques, for automatically locating volcanoes in the Magellan SAR database of Venus. Training for the specific volcano-detection task is obtained

Smyth, Padhraic

126

Detection of the 205 um [NII] Line from the Carina Nebula  

E-print Network

We report the first detection of the 205 um 3P1 - 3P0 [NII] line from a ground-based observatory using a direct detection spectrometer. The line was detected from the Carina star formation region using the South Pole Imaging Fabry-Perot Interferometer (SPIFI) on the Antarctic Submillimeter Telescope and Remote Observatory (AST/RO) at South Pole. The [NII] 205 um line strength indicates a low-density (n ~ 32 cm^-3 ionized medium, similar to the low-density ionized halo reported previously in its [OIII] 52 and 88 um line emission. When compared with the ISO [CII] observations of this region, we find that ~27% of the [CII] line emission arises from this low-density ionized gas, but the large majority ~ 73% of the observed [CII] line emission arises from the neutral interstellar medium. This result supports and underpins prior conclusions that most of the observed [CII] 158 um line emission from Galactic and extragalactic sources arises from the warm, dense photodissociated surfaces of molecular clouds. The detection of the [NII] line demonstrates the utility of Antarctic sites for THz spectroscopy.

T. E. Oberst; S. C. Parshley; G. J. Stacey; T. Nikola; A. Loehr; J. I. Harnett; N. F. H. Tothill; A. P. Lane; A. A. Stark; C. E. Tucker

2006-10-20

127

LOCKE E A CRTICA PROVA CARTESIANA DA EXISTNCIA NECESSRIA DE DEUS: UM PROBLEMA MORAL  

Microsoft Academic Search

Resumo: O objetivo deste artigo mostrar a crtica lockeana ao argumento da existncia necessria de Deus, o famoso argumento ontolgico, levado a cabo por Descartes. Segundo Locke, este modo de provar a existncia de Deus, formu- lado pela primeira vez por Santo Anselmo no Medievo, poderia ser utilizado do mesmo modo por um ateu para provar a existncia nica

Saulo Henrique; Souza Silva

128

THE RON ALD REAGAN PRESIDEN TIAL L IBRARY AND MUSE UM July 20, 2012  

E-print Network

on the occasion ofthe Baldrige Program's 25th anniversary. As President Ronald Reagan's Secretary of Commerce~ .'.REAGAN PRESIDEN TIAL L IBRARY AND MUSE UM July 20, 2012 Harry Hertz, President Reagan wrote "The [Baldrige] Award salutes companies that improve the qualities of their goods

Magee, Joseph W.

129

METHOD 100.2 - DETERMINATION OF ASBESTOS STRUCTURES OVER 10 UM IN LENGTH IN DRINKING WATER  

EPA Science Inventory

Water is collected in a polyethylene or glass container and shipped to the laboratory. nown aliquots of the sample are filtered through a 0.1 to 0.22 um pore mixed cellulose ester (MCE). arbon extraction replica is prepared from a portion of the filter and is examined in the TEM ...

130

MetUM-GOML: a near-globally coupled atmosphere-ocean-mixed-layer model  

NASA Astrophysics Data System (ADS)

Well-resolved air-sea interactions are simulated in a new Ocean Mixed Layer coupled configuration of the Met Office Unified Model (MetUM-GOML), comprising the MetUM coupled to the Multi-Column K Profile Parametrization ocean (MC-KPP). This is the first globally coupled system which provides a vertically resolved, high near-surface resolution ocean at comparable computational cost to running in atmosphere-only mode. As well as being computationally inexpensive, this modelling framework is adaptable - the independent MC-KPP columns can be applied selectively in space and time - and controllable - by using temperature and salinity corrections the model can be constrained to any ocean state. The framework provides a powerful research tool for process-based studies of the impact of air-sea interactions in the global climate system. MetUM simulations have been performed which separate the impact of introducing interannual variability in sea surface temperatures (SSTs) from the impact of having atmosphere-ocean feedbacks. The representation of key aspects of tropical and extra-tropical variability are used to assess the performance of these simulations. Coupling the MetUM to MC-KPP is shown, for example, to reduce tropical precipitation biases, improve the propagation of, and spectral power associated with, the Madden-Julian Oscillation and produce closer-to-observed patterns of springtime blocking activity over the Euro-Atlantic region.

Hirons, L. C.; Klingaman, N. P.; Woolnough, S. J.

2014-09-01

131

Propriedades qumicas de um Neossolo Quartzarnico sob diferentes sistemas de manejo no Cerrado mato-grossense  

Microsoft Academic Search

Resumo - O objetivo deste trabalho foi avaliar o efeito de diferentes usos da terra e sistemas de manejo do solo, nas caractersticas qumicas de um Neossolo Quartzarnico, no Cerrado de Mato Grosso. Os tratamentos estudados foram: cerrado nativo; uma pastagem de baixa produtividade com 22 anos de implantao; plantio convencional com 1 e 4 anos de uso e diferentes

Leidivan Almeida Frazo; Marisa de Cssia Pccolo; Brigitte Josefine Feigl; Carlos Clemente Cerri; Carlos Eduardo Pellegrino Cerri

2008-01-01

132

Tecnologia de Informao Aplicada Educao: Um (Meta) Curso no Ambiente AulaNet  

E-print Network

Rio de Janeiro -- PUCRio R. M. S. Vicente 225 Gvea Rio de Janeiro 22453900 Brasil aulanet@les.inf.pucrio at the Catholic University of Rio de Janeiro (PUCRio). AulaNet is an environment for the creation, participation.br PUCRioInf.MCC17/00. Maro de 2000. RESUMO Este trabalho descreve um curso desenvolvido

Endler, Markus

133

A INTERNET COMO UM MEIO FACILITADOR DA FORMAO DE PROFESSORES AO LONGO DA VIDA  

Microsoft Academic Search

1. Introduo Comearemos por enunciar alguns princpios\\/convices adquiridos ao longo dos anos atravs de experincias ligadas Formao de Professores e neste caso no domnio da Tecnologias de Informao e Comunicao (TIC). Poderemos resumir estes princpios\\/convices da seguinte maneira: - No possvel manter um sistema educativo actualizado e dinmico sem que os professores e outros agentes intervenientes no processo

Maria Jos Machado

134

Um Instrumento para a Avaliao de Estressores Psicossociais no Contexto de Emprego  

Microsoft Academic Search

Resumo Os contextos onde se desenvolvem as atividades humanas apresentam caractersticas diferentes que tm importantes implicaes no momento da elaborao e aplicao de procedimentos de avaliao. O contexto de emprego muito importante para importantes setores de nossa populao. Moos desenvolveu um marco conceitual scio-ecolgico no qual a relao, entre os acontecimentos vitais estressantes e as condutas adaptativas, encontra-se influenciada

Nora Leibovich de Figueroa; Marta Schufer; Roberto Muios; Claudia Marro; Elizabeth Aranda Coria

2001-01-01

135

Um novo paradigma na medicina DESENVOLVEU UMA METODOLOGIA DISRUPTIVA BASEADA NA INTEGRAO DE AVANADAS TECNOLOGIAS  

E-print Network

INTEGRAO DE AVANADAS TECNOLOGIAS DE GENTICA E MTODOS COMPUTACIONAIS SOFISTICADOS. OBJECTIVO? AJUDAR OS MDICOS A MELHORAR DIAGNSTICOS NA MEDICINA DO CORAO. #12;Depois do aperfeioamento das tecnologias pa cardacas. A tecnologia permite analisar um elevado nme- ro de alteraes genticas em simultneo, de for

Instituto de Sistemas e Robotica

136

Retroalimentao e clculo das necessidades de materiais: um procedimento sistemtico para reaproveitamento de resduos industriais  

Microsoft Academic Search

Resumo: Pelas presses cada vez mais fortes e constantes, exercidas por organizaes dos mais variados tipos e principalmente pela sociedade, as empresas na atualidade se vem foradas a estabelecer um fluxo coerente de seus produtos acompanhando do incio ao fim, seu ciclo de vida. O mundo que viu nascer a importncia da logstica tradicional, agora assiste o aparecimento da logstica

Miroslava Hamzagic; Paulino G. Francischini

137

U-M Undergraduate Student Chris Plampin's Remarks School of Nursing Groundbreaking  

E-print Network

U-M Undergraduate Student Chris Plampin's Remarks School of Nursing Groundbreaking April 5, 2013 of Michigan. Naturally, this excellent reputation drew me to the School of Nursing and ever since I received Good morning. My name is Chris Plampin and I am honored to speak on behalf of my peers. The School

Eustice, Ryan

138

Anlise da pulverizao de um fungicida na cultura do feijo, em funo do tipo de ponta e do volume aplicado  

Microsoft Academic Search

RESUMO A cultura do feijo (Phaseolus vulgaris L.) uma das mais importantes na agricultura brasilei- ra. A ocorrncia de doenas um srio fator de influncia no seu desenvolvimento e produtivida- de. Objetivou-se com o experimento instalado no municpio de Ponta Grossa (PR) analisar diferen- tes condies de pulverizao para aplicao de um fungicida. Semeou-se a cultivar carioca FT-

Luiz Claudio Garcia; Altair Justino; Hamilton Humberto Ramos

2002-01-01

139

Insurance Coverage Policy Outline the policy regarding insurance coverage on University of Michigan (U-M) vehicles.  

E-print Network

Insurance Coverage Policy Objective Outline the policy regarding insurance coverage on University-M are covered by the U-M self insurance program administered by Risk Management. 3. U-M vehicles owned and leased through Fleet Service included insurance coverage as part of the monthly lease rates. 4. U

Kirschner, Denise

140

Classificac~ao Associativa Utilizando Selec~ao e Construc~ao de Regras: um Estudo Comparativo  

E-print Network

; e GARSS, que aplica algoritmo gen´etico para selecionar um subconjunto de regras que maxi- mize a medida AUC. Neste trabalho, apresentamos o MORLEA, que utiliza um algoritmo gen´etico multi-objetivo para~ao semelhante a do algoritmo C4.5 Abstract. Associative classification is a hybrid approach that has been veri

Batista, Gustavo

141

VizieR Online Data Catalog: 1.1-2.4um spectra of 7 young M and L dwarfs (Manjavacas+, 2014)  

NASA Astrophysics Data System (ADS)

Our targets were observed with the Infrared Spectrometer And Array Camera (ISAAC) mounted on the Very Large Telescope (VLT) ath the UT3 telescope. The instrument was operated in low-resolution mode with the 0.3" slit at central wavelengths 1.25um, 1.65um, and 2.2um. This setup provides spectra with resolving powers of ~1700, 1600, and 1500 from 1.1-1.4um (J band), 1.42-1.82um (H band), and 1.82-2.5um (K band). (2 data files).

Manjavacas, E.; Bonnefoy, M.; Schlieder, J. E.; Allard, F.; Rojo, P.; Goldman, B.; Chauvin, G.; Homeier, D.; Lodieu, N.; Henning, T.

2014-02-01

142

Observations of the new gravitational lens system UM 673 = Q 0142-100  

NASA Astrophysics Data System (ADS)

The authors have recently initiated a high resolution direct imaging survey of a selected sample of highly luminous quasars (HLQs). The observations are carried out with the 2.2 m telescope at ESO, and with the VLA at the NRAO, New Mexico. Following the first observing run at ESO, the authors have reported the discovery of a new gravitational lens system for the HLQ UM 673 = Q 0142-100. Additional observations supporting this interpretation are discussed here. Application of gravitational optometry to this system is given: a value of M0 = 2.41011M_sun; is derived for the mass of the lensing galaxy located between UM 673 A and B and a most likely estimate of ?t = 7 weeks is found for the expected delay between the arrival times of a similar variability event in the two lensed images of the quasar (H0 = 75 km s-1Mpc-1, q0 = 0).

Surdej, J.; Magain, P.; Swings, J.-P.; Borgeest, U.; Courvoisier, T. J.-L.; Kayer, R.; Kellermann, K. I.; Kuhr, H.; Refsdal, S.

1988-06-01

143

VizieR Online Data Catalog: Subaru H images of UM673 (Koptelova+, 2014)  

NASA Astrophysics Data System (ADS)

We carried out H-band observations of UM673 with the Subaru Infra-Red Camera and Spectrograph (IRCS) using an adaptive optics system with 188 control elements (AO188). The images were reduced following the procedure described in "Subaru Data Reduction CookBook: Imaging Observation with IRCS" by Y. Minowa (see also Minowa et al. 2005ApJ...629...29M). The final Subaru H-band stack image of UM673 was created by coadding 22 reduced single exposure images. We also created the exposure time map of the stack image. The 17x10arcsec subframe of the stack image and the corresponding exposure map displayed in Figures 1 and 2 of the paper are available as fits files. (2 data files).

Koptelova, E.; Chiueh, T.; Chen, W. P.; Chan, H.-H.

2014-05-01

144

VizieR Online Data Catalog: SCUBA-2 850um survey in ? Ori cluster (Williams+, 2013)  

NASA Astrophysics Data System (ADS)

We observed a circular region with diameter 0.5 (about the diameter of the full Moon) towards the sigma Orionis cluster at 850um. The data were taken in queue mode over numerous observing runs from 2011 October to 2013 January (programme IDs: M11BH02A, M12AH02A and M12BH47A) in median (JCMT band 3) weather conditions, defined by the zenith optical depths at 225GHz lying between 0.08 and 0.12. This corresponds to precipitable water vapour levels ~2-3mm and zenith optical depths at 850um ~0.25-0.35. The total on-source integration time was 31h. (1 data file).

Williams, J. P.; Cieza, L. A.; Andrews, S. M.; Coulson, I. M.; Barger, A. J.; Casey, C. M.; Chen, C.-C.; Cowie, L. L.; Koss, M.; Lee, N.; Sanders, D. B.

2014-09-01

145

Novas estratgias comunicativas como fator de qualidade na interao de surdos em um sistema organizacional  

E-print Network

122 Novas estratégias comunicativas como fator de qualidade na interação de surdos em um sistema formulário web e verificar se o uso de novas estratégias comunicativas melhora a interação dos surdos. Foram (MAC), uma com a interface original do sistema, e outra com o uso de novas estratégias comunicativas

Barbosa, Alberto

146

Um enfoque antropolgico para o ensino de astronomia no nvel mdio  

NASA Astrophysics Data System (ADS)

H uma enorme carncia de materiais didtico-pedaggicos em astronomia para professores do ensino mdio, sobretudo materiais que explorem tambm aspectos humansticos. A origem do Universo um bom exemplo desta constatao central. Embora tal origem teve explicaes culturais diversas, os professores no tm informaes sobre isso e muito menos material que trabalhe diferentes vises de mundo e treinamento que os capacite a abord-las devidamente. Conseqentemente o ensino de astronomia costuma ser tecnicista e dissociado do aspecto humano que alimenta o grande interesse e curiosidade que esses temas despertam. Aqui apresentamos propostas visando contribuir para reverter esse quadro e trabalhamos distintas vises de Universo: espontneas, autctones e cientficas. Desenvolvemos prticas, materiais instrucionais e textos para viabilizar a adoo de um enfoque antropolgico para o ensino de astronomia no nvel mdio, no qual as culturas humanstica e cientfica sejam integradas de uma maneira contextualizada e eficaz para aquele ensino. Estas propostas foram aplicadas em um curso de treinamento para professores da rede pblica de diferentes disciplinas. A receptividade dos professores abordagem proposta e os resultados alcanados foram muito estimulantes. Destes, destacamos: produo de roteiros de atividades; desenvolvimento de prticas didtico-pedaggicas especficas (e.g., encenao de mitos; dana primordial guarani; "criao" de constelaes e interpretaes pluriculturais; etc.); e sugestes concretas para a efetiva realizao de um ensino interdisciplinar contextualizado, onde questes cosmognicas servem de mote para iniciar tal ensino. Discutimos estes resultados e como o enfoque adotado pode instrumentalizar os professores para leituras de mundo que incluem naturalmente aspectos culturais, sociais e histricos associados aos temas estudados. (PPGECNM/UFRN; PRONEX/FINEP; NUPA/USP; Temticos/FAPESP)

Costa, G. B.; Jafelice, L. C.

2003-08-01

147

Paula Salgado Lucena Rodrigues Um Sistema de Gerac~ao de Express~oes Faciais  

E-print Network

Rio de Janeiro Dezembro de 2007 #12;Paula Salgado Lucena Rodrigues Um Sistema de Gerac~ao de Express Centro Tecnico Cientifico -- PUCRio Rio de Janeiro, 20 de Dezembro de 2007 #12;Todos os direitosatica pela PUC-Rio (Pon- tificia Universidade Catolica do Rio de Janeiro). Ao longo do Doutorado atuou como

148

UM METODO DE OCULTAMENTO DE ERROS EM TRANSMISS~AO DE Ana Luisa de Araujo Santos  

E-print Network

UNIVERSIDADE FEDERAL DO RIO DE JANEIRO COMO PARTE DOS REQUISITOS NECESS´ARIOS PARA A OBTENC¸ ~AO DO GRAU DE Mattoso Maia, Ph.D. RIO DE JANEIRO, RJ - BRASIL MARC¸O DE 2006 #12;SANTOS, ANA LU´ISA DE ARAUJO Um M´etodo de Ocultamento de Erros em Transmiss~ao de V´ideo [Rio de Janeiro] 2006 X, 91 p. 29,7 cm (COPPE

de Queiroz, Ricardo L.

149

A caracterstica educadora da obra de Sfocles: a busca por um homem ideal no conceito de \\  

Microsoft Academic Search

Resumo: No perodo clssico (sculos VI e V a.C.), a Grcia passou por um processo de transio. As transformaes ocorridas na sociedade causaram conflitos na forma de viver do homem grego, que se tornaram temas das tragdias apresentadas nas cidades-Estado do sculo V a.C. Pela importncia dada tragdia no perodo clssico, esse gnero literrio acabou por ser usado pelos

Paulo Rogrio de Souza; Jos Joaquim Pereira Melo

150

Escenario EM Modelo Matematico  

E-print Network

´as all´a 3. Problemas F´isicos (abordados recientemente) EC: Experimento flux shaking EC: Resistencia con campos promedio B, E(J) para sistemas con fuerza de anclaje (Fp = J ? B Jc) en aproximaci´on MQS

Majós, Antonio Badía

151

A Report to the Joint Chairs of the Senate Budget and Taxation Committee and the House Appropriations Committee on the Workload of the UMS Faculty.  

ERIC Educational Resources Information Center

This report provides data and recommendations on the workload and productivity of University of Maryland System (UMS) faculty. It outlines the state budgetary policy that mandates the report and explains UMS policy on faculty workload. The data in the report reflect teaching standards in place in 1993-94, prior to the adoption of the current UMS

Maryland Univ., College Park.

152

The UM-Dearborn Observatory: Variable-object Research from an Urban Site  

NASA Astrophysics Data System (ADS)

Since its construction in 2007, the UM-Dearborn Observatory has provided a valuable educational tool both for students at UM-Dearborn and our neighbor-institution the Henry Ford Community College, and for the public at-large. We have recently (Jan 2014) added a systematic long-term research program with our 0.4m main telescope, to photometrically monitor a number of bright variable objects, including X-ray binaries and chemically-peculiar metal-poor stars over long timescales. We ultimately envision assembling a photometric database of (at least) four-color photometry over years-decades (i.e., many hundreds of orbital timescales for close binaries), with the preponderance of datapoints taken by undergraduates. To conduct this program, we have had to overcome a number of site challenges, the solutions of which will be useful to many programs using small telescopes at urban sites. The 0.4m telescope lies on a shared building within UM-Dearborn's main Fairlane campus - i.e., is about 20 meters above sea level, near several sources of water vapor (including an active steam vent less than 15 meters away), experiences significant mechanical vibrations from other building functions, and lies about 6 miles from central Detroit, well within the Detroit-Ann Arbor conurbation. Observing conditions are thus highly variable, with 5 arcsecond seeing typical and significant transparency variations observed even during a clear night. Nevertheless, we are now able to make scientifically useful observations in a semi-automatic way, to which our chosen scientific niche is well-suited. We present here our solutions to these challenges, along with initial results from our ongoing monitoring program.

Clyne, Elisabeth; Clarkson, William I.; Rasmussen, Eric J; Bord, Donald J.; Dage, Kristen; Matzke, David; Swift, Carrie

2014-06-01

153

A questionnaire-based (UM-PDHQ) study of hallucinations in Parkinson's disease  

PubMed Central

Background Hallucinations occur in 2040% of PD patients and have been associated with unfavorable clinical outcomes (i.e., nursing home placement, increased mortality). Hallucinations, like other non-motor features of PD, are not well recognized in routine primary/secondary clinical practice. So far, there has been no instrument for uniform characterization of hallucinations in PD. To this end, we developed the University of Miami Parkinson's disease Hallucinations Questionnaire (UM-PDHQ) that allows comprehensive assessment of hallucinations in clinical or research settings. Methods The UM-PDHQ is composed of 6 quantitative and 14 qualitative items. For our study PD patients of all ages and in all stages of the disease were recruited over an 18-month period. The UPDRS, MMSE, and Beck Depression and Anxiety Inventories were used for comparisons. Results and Discussion Seventy consecutive PD patients were included in the analyses. Thirty-one (44.3%) were classified as hallucinators and 39 as non-hallucinators. No significant group differences were observed in terms of demographics, disease characteristics, stage, education, depressive/anxiety scores or cognitive functioning (MMSE) between hallucinators and non-hallucinators. Single mode hallucinations were reported in 20/31 (visual/14, auditory/4, olfactory/2) whereas multiple modalities were reported in 11/31 patients. The most common hallucinatory experience was a whole person followed by small animals, insects and reptiles. Conclusion Using the UM-PDHQ, we were able to define the key characteristics of hallucinations in PD in our cohort. Future directions include the validation of the quantitative part of the questionnaire than will serve as a rating scale for severity of hallucinations. PMID:18570642

Papapetropoulos, Spiridon; Katzen, Heather; Schrag, Anette; Singer, Carlos; Scanlon, Blake K; Nation, Daniel; Guevara, Alexandra; Levin, Bonnie

2008-01-01

154

Isoalantolactone inhibits UM-SCC-10A cell growth via cell cycle arrest and apoptosis induction.  

PubMed

Isoalantolactone is a sesquiterpene lactone compound isolated from the roots of Inula helenium L. Previous studies have demonstrated that isoalantolactone possesses antifungal, anti-bacterial, anti-helminthic and anti-proliferative properties in a variety of cells, but there are no studies concerning its effects on head and neck squamous cell carcinoma (HNSCC). In the present study, an MTT assay demonstrated that isoalantolactone has anti-proliferative activity against the HNSCC cell line (UM-SCC-10A). Immunostaining identified that this compound induced UM-SCC-10A cell apoptosis but not necrosis. To explain the molecular mechanisms underlying its effects, flow cytometry and western blot analysis showed that the apoptosis was associated with cell cycle arrest during the G1 phase, up-regulation of p53 and p21, and down-regulation of cyclin D. Furthermore, our results revealed that induction of apoptosis through a mitochondrial pathway led to up-regulation of pro-apoptotic protein expression (Bax), down-regulation of anti-apoptotic protein expression (Bcl-2), mitochondrial release of cytochrome c (Cyto c), reduction of mitochondrial membrane potential (MMP) and activation of caspase-3 (Casp-3). Involvement of the caspase apoptosis pathway was confirmed using caspase inhibitor Z-VAD-FMK pretreatment. Together, our findings suggest that isoalantolactone induced caspase-dependent apoptosis via a mitochondrial pathway and was associated with cell cycle arrest in the G1 phase in UM-SCC-10A cells. Therefore, isoalantolactone may become a potential drug for treating HNSCC. PMID:24098753

Wu, Minjun; Zhang, Hua; Hu, Jiehua; Weng, Zhiyong; Li, Chenyuan; Li, Hong; Zhao, Yan; Mei, Xifan; Ren, Fu; Li, Lihua

2013-01-01

155

Isoalantolactone Inhibits UM-SCC-10A Cell Growth via Cell Cycle Arrest and Apoptosis Induction  

PubMed Central

Isoalantolactone is a sesquiterpene lactone compound isolated from the roots of Inula helenium L. Previous studies have demonstrated that isoalantolactone possesses antifungal, anti-bacterial, anti-helminthic and anti-proliferative properties in a variety of cells, but there are no studies concerning its effects on head and neck squamous cell carcinoma (HNSCC). In the present study, an MTT assay demonstrated that isoalantolactone has anti-proliferative activity against the HNSCC cell line (UM-SCC-10A). Immunostaining identified that this compound induced UM-SCC-10A cell apoptosis but not necrosis. To explain the molecular mechanisms underlying its effects, flow cytometry and western blot analysis showed that the apoptosis was associated with cell cycle arrest during the G1 phase, up-regulation of p53 and p21, and down-regulation of cyclin D. Furthermore, our results revealed that induction of apoptosis through a mitochondrial pathway led to up-regulation of pro-apoptotic protein expression (Bax), down-regulation of anti-apoptotic protein expression (Bcl-2), mitochondrial release of cytochrome c (Cyto c), reduction of mitochondrial membrane potential (MMP) and activation of caspase-3 (Casp-3). Involvement of the caspase apoptosis pathway was confirmed using caspase inhibitor Z-VAD-FMK pretreatment. Together, our findings suggest that isoalantolactone induced caspase-dependent apoptosis via a mitochondrial pathway and was associated with cell cycle arrest in the G1 phase in UM-SCC-10A cells. Therefore, isoalantolactone may become a potential drug for treating HNSCC. PMID:24098753

Wu, Minjun; Zhang, Hua; Hu, Jiehua; Weng, Zhiyong; Li, Chenyuan; Li, Hong; Zhao, Yan; Mei, Xifan; Ren, Fu; Li, Lihua

2013-01-01

156

Exerccios Adicionais Observao: Estes exerccios so um complemento queles apresentados no livro. Eles  

E-print Network

Exercícios Adicionais Observação: Estes exercícios são um complemento àqueles apresentados no livro recomendamos fazê-los depois de ter feito os exercícios do livro proposto pela equipe de AL. Somatórios 1 operações + e · que satisfaçam aos axiomas de espaço vetorial da denição 3.1 do livro. #12;Dados os símbolos

Lewiner, Thomas (Thomas Lewiner)

157

Comparing the genomes of Helicobacter pylori clinical strain UM032 and Mice-adapted derivatives  

PubMed Central

Background Helicobacter pylori is a Gram-negative bacterium that persistently infects the human stomach inducing chronic inflammation. The exact mechanisms of pathogenesis are still not completely understood. Although not a natural host for H. pylori, mouse infection models play an important role in establishing the immunology and pathogenicity of H. pylori. In this study, for the first time, the genome sequences of clinical H. pylori strain UM032 and mice-adapted derivatives, 298 and 299, were sequenced using the PacBio Single Molecule, Real-Time (SMRT) technology. Result Here, we described the single contig which was achieved for UM032 (1,599,441bp), 298 (1,604,216bp) and 299 (1,601,149bp). Preliminary analysis suggested that methylation of H. pylori genome through its restriction modification system may be determinative of its host specificity and adaptation. Conclusion Availability of these genomic sequences will aid in enhancing our current level of understanding the host specificity of H. pylori. PMID:23957912

2013-01-01

158

Wissenschaft, die unsere Kultur verndert. Tiefenschichten des Streits um die Evolutionstheorie  

NASA Astrophysics Data System (ADS)

Die Evolutionstheorie ist eine der erfolgreichsten wissenschaftlichen Theorien. Sie erlaubt es, unsere Herkunft zu verstehen und riskante Merkmale gerade der menschlichen Spezies zu begreifen. Zugleich ist die Evolutionstheorie eine der umstrittensten Theorien. Das liegt nicht an ihrer empirischen Tragfhigkeit, sondern an ihrem Gegenstand. Sie handelt nmlich nicht nur - wie Hunderte andere wissenschaftliche Theorien - von der "Welt da drauen, sondern vor allem auch von uns selbst und von unserem Platz in dieser Welt. Den einen gilt sie obendrein als berwinderin religisen Aberglaubens, den anderen als neuer Zugang zu Gott und seinem Wirken in der Welt. Ferner sehen die einen in der Evolution eine unbezweifelbare Tatsache gleich der Schwerkraft oder dem Holocaust, die anderen aber eine - noch oder dauerhaft - unbewiesene Hypothese oder gar eine falsche Schpfungslehre. Und whrend die meisten Streitfragen solcher Art nach wechselseitig akzeptierten Regeln normaler Wissenschaft geklrt werden, wird bei der Frage nach dem Woher unserer Spezies und Kultur die intellektuelle Zustndigkeit von Wissenschaft mitunter berhaupt bezweifelt. Anscheinend geht es schon um recht tiefe Schichten unserer Kultur und nicht nur der wissenschaftlichen, wenn - wie seit 150 Jahren - um die Evolutionstheorie gestritten wird. Wie sehen diese Schichten aus?

Patzelt, Werner J.

159

Photometric monitoring of the doubly imaged quasar UM673: possible evidence for chromatic microlensing  

E-print Network

We present the results of two-band CCD photometric monitoring of the gravitationally lensed quasar Q 0142-100 (UM 673).The data, obtained at ESO-La Silla with the 1.54 m Danish telescope in the Gunn i-band (October 1998 - September 1999) and in the Johnson V-band (October 1998 to December 2001), were analyzed using three different photometric methods. The light-curves obtained with all methods show variations, with a peak-to-peak amplitude of 0.14 magnitude in $V$. Although it was not possible to measure the time delay between the two lensed QSO images, the brighter component displays possible evidence for microlensing: it becomes bluer as it gets brighter, as expected under the assumption of differential magnification of a quasar accretion disk

Th. Nakos; F. Courbin; J. Poels; C. Libbrecht; P. Magain; J. Surdej; J. Manfroid; I. Burud; J. Hjorth; L. Germany; C. Lidman; G. Meylan; E. Pompei; J. Pritchard; I. Saviane

2005-07-07

160

University AlbUM: A Digital Collection of University of Maryland Images  

NSDL National Science Digital Library

The Old Line State has long been home to a number of fine institutions of higher education, and the flagship public university is the University of Maryland in College Park. Their library system has been involved in creating a number of digital collections, and the impetus for this particular offering was the University's 150th anniversary celebration. Drawing on their broad archive of historical photographs, they have created the University AlbUM website to intrigue and entice those who might wish to learn a bit more about the University's past. Visitors to the site can browse the photographs via a set of themes, including "Sports", "Agriculture", "Campus + Buildings", "Events", and "People". Those persons with a temporal bent may wish to browse the photographs by decade to find documents such as minutes from the campus literary society and illustrations from various campus publications.

161

MiR-222 Targeted PUMA to Improve Sensitization of UM1 Cells to Cisplatin  

PubMed Central

microRNAs have been shown to play critical roles in regulating the chemosensitivity of cancer cells. As a member of the oncogenic miRNAs (oncomiRs), miR-222 has been reported to drive the oncogenesis of many types of malignancies. However, little is known concerning the specific role of miR-222 in human oral squamous cell carcinoma (OSCC). The present study explored the role and mechanism of miR-222 in increasing the expression of p53 up-regulated modulator of apoptosis (PUMA) and enhancing the sensitivity of OSCC to cisplatin (CDDP). Results showed that antisense (As)-miR-222 inhibits the expression of miR-222. In contrast, PUMA was dramaticallyup-regulated. IC50 values were significantly decreased in cells treated with As-miR-222 combined with CDDP, to a greater extent than in cells treated with CDDP alone. Furthermore, As-miR-222 enhanced apoptosis and inhibited the invasiveness of UM1 cells. Analysis of the above data suggested that, in UM1 cells, there might be a regulatory loop between miR-222 and PUMA, and that miR-222 inhibition increased the chemosensitivity to CDDP. These findings demonstrated that down-regulation of miR-222 could enhance the chemosensitivity of human OSCC cells to CDDP, and that the combination of As-miR-222 and CDDP could be an effective therapeutic strategy by boosting the expression of PUMA for controlling the growth of OSCC. PMID:25474084

Jiang, Fangfang; Zhao, Wei; Zhou, Lijie; Liu, Zifeng; Li, Wenqing; Yu, Dongsheng

2014-01-01

162

Comparative genomic analysis of Mycobacterium iranicum UM_TJL against representative mycobacterial species suggests its environmental origin  

PubMed Central

Mycobacterium iranicum is a newly reported mycobacterial species. We present the first comparative study of M. iranicum UM_TJL and other mycobacteria. We found M. iranicum to have a close genetic association with environmental mycobacteria infrequently associated with human infections. Nonetheless, UM_TJL is also equipped with many virulence genes (some of which appear to be the consequence of transduction-related gene transfer) that have been identified in established human pathogens. Taken all together, our data suggest that M. iranicum is an environmental bacterium adapted for pathogenicity in the human host. This comparative study provides important clues and forms the basis for future functional studies on this mycobacterium. PMID:25417557

Tan, Joon Liang; Ngeow, Yun Fong; Wee, Wei Yee; Wong, Guat Jah; Ng, Hien Fuh; Choo, Siew Woh

2014-01-01

163

APLIKACE UM?L INTELIGENCE V EKONOMICK OBLASTI THE APPLICATION OF ARTIFICIAL INTELLIGENCE IN THE FIELD OF ECONOMICS  

Microsoft Academic Search

Abstrakt P?sp?vek vymezuje zkladn sm?ry vzkumu v oblasti um?l inteligence na stavu informatiky Provozn? ekonomick fakulty MZLU v Brn?. Metody a technologie um?l inteligence jsou aplikovny na ekonomickch p?padech z praxe. Detailn?ji jsou popsny dva v sou?asn dob? ?een projekty, diagnostick systm hodnocen podnikov finan?n situace neuronovmi st?mi v podob? klasifika?n lohy a regresn a predik?n loha ?een evolu?nmi metodami.

Martin Pokorn

164

BACTERIOLYTIC ACTIVITY FROM A CONTINUOUS FLOW CULTURE CHEMOSTAT CONTAINED WITHIN CONCENTRATED 0.22UM FILTERED CHEMOSTAT CONTENTS  

Technology Transfer Automated Retrieval System (TEKTRAN)

Fluid from a characterized continuous flow culture chemostat containing 29 microorganisms was subjected to a low speed centrifugation, 4000 x g, followed by sequential filtration through 0.45 and 0.22um membranes. The sterilized chemostat fluid was then centrifuged for 3h at 150,000 x g, washed in ...

165

Thouless theorem for one and two degrees of freedom (Teorema de Thouless para um e dois graus de liberdade)  

Microsoft Academic Search

Realizamos uma demonstracao acess ivel do teorema de Thouless para um ou dois graus de liberdade, usando somente mecanica quantica elementar. Este teoremae especialmenteutil para encontrar o vacuo relativo au m conjunto de operadores bosonicos transformados. Outra motivacaoe a existencia de experimentos envolvendo ions capturados ou campos em eletrodinamica quantica de cavidades, usualmente modelados por osciladores harmonicos interagindo linearmente.

A. R. Bosco de Magalhaes; Avila Fonseca; M. C. Nemes

166

Investigation of a prototype 150 um microfluidic device and IMS-ToF mass spectrometry for high-  

E-print Network

Investigation of a prototype 150 um microfluidic device and IMS-ToF mass spectrometry for high Principle Investigators - Just ran our 10,000th sample Name Changing to "Duke Proteomics and Biological Mass Murphy2, Steven Cohen2, Jim Langridge4, Geoff Gerhardt2, and M. Arthur Moseley1 1Duke Proteomics Core

Richardson, David

167

UM PROJETO ALTERNATIVO PARA INICIAO EM TECNOLOGIAS DIFITAIS NA FORMAO INICIAL DE PROFESSORES DE CINCIAS E BIOLOGIA  

Microsoft Academic Search

Uma discusso sobre a formao de professores que sejam capazes de incorporar as tecnologias digitais na educao como recurso no processo de ensino -aprendizagem nas escolas da educao bsica no Brasil passa necessariamente por um questionament o da prtica atual das nossas licenciaturas em plena Era da Informao... De uma maneira geral, nas licenciaturas brasileiras ainda no se usam os

Simo Marinho

168

Origin and characteristics of yardangs in the Um Al-Rimam depressions (N Kuwait)  

NASA Astrophysics Data System (ADS)

Although Arabia hosts one of the largest deserts in the world, studies regarding aeolian erosional features in general and yardangs in particular are rare. The principal aim of this study is to delineate and investigate the various forms of yardangs in the Um Al-Rimam depressions in the northern part of Kuwait. The study area consists of two main depressions connected by neck area made up of continental sediments. Both depressions are surrounded by a dissected escarpment and their floors host muddy playas. On lithological bases, three main types of yardang have been identified: 7 yardangs are sculptured in sandstones of Lower Fars Formation (Lower to Middle Miocene), 23 are carved in calcretic rocks of Ghar Formation (Oligocene to Lower Miocene), and 11 yardangs are developed in Quaternary sediments. Their mean orientation NW (297) coincides with the prevailing direction of the strong local northwesterly wind called the shamal. The average length/width ratio is 1.5:1. The wide geographic distribution of yardangs around the margins of the northern depression is due to sand blasting. This is explained by the annual sand accumulation measured in the study area where the northern depression shows 143 times higher accumulation than the southern depression, the neck area and the platform above the depressions. Also, the field measurements for annual erosional rates show that the sides of the yardangs are more affected by erosion compared to their middle parts. Remarkably slight mineralogical variations were detected within the surface sediments of Um Al-Rimam depressions and the Quaternary muddy yardangs which indicate a common origin. The age of yardangs is unknown but annual erosional rates on a small Quaternary muddy yardang suggest that they range in age between 44 and 1500 years depending on yardang size. It is believed, as indicated from field observation and interpretation of aerial photos, that the majority of yardangs are pre-existing bedrock forms. These forms were developed by paleo-surface hydrological processes which were modified by wind action in latter phase.

Al-Dousari, Ali. M.; Al-Elaj, Maraheb; Al-Enezi, Eqbal; Al-Shareeda, Abdulaziz

2009-03-01

169

BUDDA (Bulge/Disk Decomposition Analysis) - um novo programa para anlise estrutural de galxias  

NASA Astrophysics Data System (ADS)

Tem sido prtica comum nos ltimos anos estudar a distribuio de luminosidade em galxias fazendo uso da informao contida em toda a imagem da galxia, j que esta tcnica tem se mostrado muito mais confivel do que o simples ajuste de perfis radiais de luminosidade. Atravs destes estudos bidimensionais, melhores resultados tem sido obtidos na anlise e.g. do Plano Fundamental, de correlaes entre os parmetros estruturais de galxias, de sub-estruturas como barras e anis nucleares etc. Apresentamos um novo cdigo bidimensional, o BUDDA, de anlise estrutural de galxias, que ser disponibilizado para a comunidade. Desenvolvido por ns, o cdigo determina os parmetros estruturais de galxias de forma prtica e robusta, e pode ser aplicado genericamente em qualquer estudo sobre a formao, evoluo e estrutura de galxias. O programa ainda permite a avaliao direta de sub-estruturas, atravs de imagens residuais que so obtidas ao se subtrair, das imagens originais, bojo e disco sintticos que melhor representam essas componentes da galxia sob considerao. Ser apresentada a forma de utilizao do cdigo, bem como sries de testes que atestam a sua funcionalidade. Alm disso, os resultados da aplicao do cdigo em uma amostra de 51 galxias sero expostos como exemplo prtico, e do seu enorme potencial de uso.

Gadotti, D. A.; de Souza, R. E.; Dos Anjos, S.

2003-08-01

170

Estimation of broadband emissivity (8-12 um) from ASTER data by using RM-NN.  

PubMed

Land surface window emissivity is a key parameter for estimating the longwave radiative budget. The combined radiative transfer model (RM) with neural network (NN) algorithm is utilized to directly estimate the window (8-12 um) emissivity from the brightness temperature of the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) with 90 m spatial resolution. Although the estimation accuracy is very high when the broadband emissivity is estimated from AST05 (ASTER Standard Data Product) by using regression method, the accuracy of AST05 is about 0.015 for 86 spectra which is determined by the atmosphere correction for ASTER 1B data. The MODTRAN 4 is used to simulate the process of radiance transfer, and the broadband emissivity is directly estimated from the brightness temperature of ASTER 1B data at satellite. The comparison analysis indicates that the RM-NN is more competent to estimate broadband emissivity than other method when the brightness temperatures of band 11, 12, 13, 14 are made as input nodes of dynamic neural network. The estimation average accuracy is about 0.009, and the estimation results are not sensitive to instrument noise. The RM-NN is applied to extract broadband emissivity from an image of ASTER 1B data in China, and the comparison against a classification based multiple bands with 15 m spatial resolution shows that the estimation results from RM-NN are very good. PMID:23037062

Mao, K B; Ma, Y; Shen, X Y; Li, B P; Li, C Y; Li, Z L

2012-08-27

171

Evaluation of natural radionuclides at Um-Greifat area, eastern desert of Egypt.  

PubMed

Air borne radiometric maps and remote sensing techniques were used to explore for the occurrence of radioactive materials. The previous techniques recorded radioactive mineralization for the first time along the NW-SE trending fault zones within the Miocene clastic-carbonate sediments. In the present study, gamma-ray spectrometry was used to confirm the presence of this mineralization. Concentrations of radionuclides, associated within the iron ochre at Um-Greifat area, have been measured, using a hyper-pure germanium spectrometer. The variation in concentration of radionuclides for the area under investigation can be classified into A, B and C regions of high, medium and low natural radioactivity. In region A, average concentration in Bqkg(-1) has been observed to range from 1858 to 4062 for 238U, between 29 and 151 for 232Th, from 60 to 136 for 235U and between 46 and 409 Bqkg(-1) for 40K. Radium equivalent activities (Ra(eq)) in addition to external and internal hazard indices (H(ex), H(in)) have also been determined. Ra(eq) varies between 1901 and 4307Bqkg(-1), which exceeds the permitted value (370Bqkg(-1)) and H(ex) and H(in) are higher than 1. The high activity concentration within region A points to an environmental hazard, while regions B and C have less exposure effect on human beings. PMID:12573328

Nada, A

2003-02-01

172

BSSDATA - um programa otimizado para filtragem de dados em radioastronomia solar  

NASA Astrophysics Data System (ADS)

A partir de 1998, entrou em operao regular no INPE, em So Jos dos Campos, o Brazilian Solar Spectroscope (BSS). O BSS dedicado s observaes de exploses solares decimtricas com alta resoluo temporal e espectral, com a principal finalidade de investigar fenmenos associados com a liberao de energia dos "flares" solares. Entre os anos de 1999 e 2002, foram catalogadas, aproximadamente 340 exploses solares classificadas em 8 tipos distintos, de acordo com suas caractersticas morfolgicas. Na anlise detalhada de cada tipo, ou grupo, de exploses solares deve-se considerar a variao do fluxo do sol calmo ("background"), em funo da freqncia e a variao temporal, alm da complexidade das exploses e estruturas finas registradas superpostas ao fundo varivel. Com o intuito de realizar tal anlise foi desenvolvido o programa BSSData. Este programa, desenvolvido em linguagem C++, constitudo de vrias ferramentas que auxiliam no tratamento e anlise dos dados registrados pelo BSS. Neste trabalho iremos abordar as ferramentas referentes filtragem do rudo de fundo. As rotinas do BSSData para filtragem de rudo foram testadas nos diversos grupos de exploses solares ("dots", "fibra", "lace", "patch", "spikes", "tipo III" e "zebra") alcanando um bom resultado na diminuio do rudo de fundo e obtendo, em conseqncia, dados onde o sinal torna-se mais homogneo ressaltando as reas onde existem exploses solares e tornando mais precisas as determinaes dos parmetros observacionais de cada exploso. Estes resultados sero apresentados e discutidos.

Martinon, A. R. F.; Sawant, H. S.; Fernandes, F. C. R.; Stephany, S.; Preto, A. J.; Dobrowolski, K. M.

2003-08-01

173

Mobilidades: um novo direito s cidades/metrpoles? Redes de transporte e produo do espao urbano: Tours e Salvador sobre novos trilhos  

E-print Network

Tema Mobilidades: um novo direito s cidades/metrpoles? Ttulo Redes de transporte e produo do in "Dilogos Brasil Frana 2012 Construir a metrpole contempornea, Sao Paulo : Brazil (2012)" #12;Redes de que qualquer espao pode ser analisado e concebido considerando-o como um lugar, como uma rede ou como

Paris-Sud XI, Universit de

174

SPOLM 2008 ISSN 1806-3632 Rio de Janeiro, Brasil, 05 e 06 de agosto de 2008. ANLISE DE UM ALGORITMO DE OTIMIZAO DE REDES DE  

E-print Network

ALGORITMO DE OTIMIZAO DE REDES DE FILAS FINITAS Helinton A. L. Barbosa Departamento de Estatstica ICEx de espera em redes de filas finitas gerais com servidores mltiplos. Um mtodo de aproximao utilizado para estimar o desempenho da rede de filas e um algoritmo iterativo de busca empregado para

Cruz, Frederico

175

Dental Schools AxiUm is the complete clinic management system to over 27 dental institutions in North America and Europe. A  

E-print Network

Dental Schools AxiUm is the complete clinic management system to over 27 dental institutions in North America and Europe. A is the complete clinic management system to over 27 dental institutions dental institutions in North America and Europe. A comprehensive package, AxiUm eliminates the need

Cui, Yan

176

ESTUDO DO EFEITO DO AUMENTO DA CARGA, DA PRESSO DE INFLAO E DO TIPO DE PNEU NA RESPOSTA ELSTICA DE UM PAVIMENTO  

Microsoft Academic Search

RESUMO - Neste Trabalho procura-se sintetizar a realidade da rea de pavimentao, enfatizando os reduzidos investimentos em obras e pesquisas e a necessidade atual de boas condies de trfego na rede face a um uso mais intensivo. So arrolados elementos que preocupam os engenheiros e a sociedade sobre os danos aos pavimentos provocados pelo excesso de carga associado a um

Joo Fortini Albano; Luis Antonio Lindau

177

Project UM-HAUL: A self-unloading reusable lunar lander  

NASA Astrophysics Data System (ADS)

The establishment of a lunar base is technologically and financially challenging. Given the necessary resources and political support, it can be done. In addition to the geopolitical obstacles, however, there are logistical problems involved in establishing such bases that can only be overcome with the acquisition of a significant transportation and communications network in the Earth-Moon spatial region. Considering the significant number of payloads that will be required in this process, the mass-specific cost of launching these payloads, and the added risk and cost of human presence in space, it is clearly desirable to automate major parts of such an operation. One very costly and time-consuming factor in this picture is the delivery of payloads to the Moon. Foreseeable payloads would include atmospheric modules, inflatable habitat kits, energy and oxygen plant elements, ground vehicles, laboratory modules, crew supplies, etc. The duration of high-risk human presence on the Moon could be greatly reduced if all such payloads were delivered to the prospective base site in advance of crew arrival. In this view, the idea of a 'Self-Unloading Reusable Lunar Lander' (SURLL) arises naturally. The general scenario depicts the lander being brought to low lunar orbit (LLO) from Earth atop a generic Orbital Transfer Vehicle (OTV). From LLO, the lander shuttles payloads down to the lunar surface, where, by means of some resident, detachable unloading device, it deploys the payloads and returns to orbit. The general goal is for the system to perform with maximum payload capability, automation, and reliability, while also minimizing environmental hazards, servicing needs, and mission costs. Our response to this demand is UM-HAUL, or the UnManned Heavy pAyload Unloader and Lander. The complete study includes a system description, along with a preliminary cost analysis and a design status assessment.

178

VizieR Online Data Catalog: AKARI 2.5-5um spectra of nearby Type-1 AGNs (Kim+, 2015)  

NASA Astrophysics Data System (ADS)

The 2.5-5.0um NIR spectra were obtained with the IRC infrared spectrograph on the AKARI satellite during phase 3 of the AKARI operation, i.e., our observation was carried out during 2008-2011 after the helium cooling was over. We used the NG grism mode which provides a spectral resolution of R=120?/3.6?m. (2 data files).

Kim, D.; Im, M.; Kim, J. H.; Jun, H. D.; Woo, J.-H.; Lee, H. M.; Lee, M. G.; Nakagawa, T.; Matsuhara, H.; Wada, T.; Oyabu, S.; Takagi, T.; Ohyama, Y.; Lee, S.-K.

2015-02-01

179

Characteristics of InAs/InGaAsP quantum dot laser diodes lasing at 1.55um  

NASA Astrophysics Data System (ADS)

We have measured I-V, L-I curves and electroluminescence spectra from InAs/InGaAsP quantum dot (QD) laser diodes (LDs) to investigate how to optimize QD LDs for high output power. The slope of an L-I curve, which is proportional to the differential quantum efficiency, decreased rapidly after lasing due to heat in cw mode. Since the heat problem is not significant in pulse mode, the efficiency is constant up to a rather high current level. In spite of the heat problem, the maximum output power is over 79 mW from a single facet in cw mode at 20 C. At the same temperature, the lowest threshold current is 132 mA with cavity length, width and QD layers of 500 um, 5 um and 7 stacks, respectively. The characteristic temperatures of QD LD are 188 K and 111 K under pulse and cw mode, respectively. Typical lasing wavelength is around 1.55 um. The slope efficiency, internal loss and gain are 0.368 W/A, 5.2 cm-1 and 15 cm-1, respectively.

Lee, Eungu; Jang, Yudong; Kim, Namje; Lee, Donghan; Pyun, Suhyun; Ko, Deokgil; Yoon, Juhyung; Jeong, Weonguk; Jang, Jongwon

2007-02-01

180

NE VIII lambda 774 and time variable associated absorption in the QSO UM 675  

NASA Technical Reports Server (NTRS)

We discuss measurements of Ne VIII lambda 774 absorption and the time variability of other lines in the z(sub a) approximately equal z(sub e) absorption system of the z(sub e) = 2.15 QSO UM 675 (0150-203). The C IV lambda 1549 and N V 1240 doublets at z(sub a) = 2.1340 (shifted approximately 1500 km/s from z(sub e) strengthened by a factor of approximately 3 between observations by Sargent, Boksenberg and Steidel (1981 November) and our earliest measurements (1990 November and December). We have no information on changes in other z(sub a) approximately equal z(sub e) absorption lines. Continued monitoring since 1990 November shows no clear changes in any of the absorptions between approximately 1100 and 1640 A rest. The short timescale of the variability (less than or approximately equal to 2.9 yr rest) strongly suggests that the clouds are dense, compact, close to the QSO, and photoionized by the QSO continuum. If the line variability is caused by changes in the ionization, the timescale requires densities greater than approximately 4000/cu cm. Photoionization calculations place the absorbing clouds within approximately 200 pc of the continuum source. The full range of line ionizations (from Ne VIII lambda 774 to C III lambda 977) in optically thin gas (no Lyman limit) implies that the absorbing regions span a factor of more than approximately 10 in distance or approximately 100 in density. Across these regions, the total hydrogen (H I + H II) column ranges from a few times 10(exp 18)/sq cm in the low-ionization gas to approximately 10(exp 20)/sq cm where the Ne VIII doublet forms. The metallicity is roughly solar or higher, with nitrogen possibly more enhanced by factors of a few. The clouds might contribute significant line emission if they nearly envelop the QSO. The presence of highly ionized Ne VIII lambda 774 absorption near the QSO supports recent studies that link z(sub a) approximately equal to z(sub e) systems with X-ray 'wamr absorbers. We show that the Ne VIII absorbing gas would itself produce measurable warm absorption -- characterized by bound-free O VII or O VIII edegs near 0.8 keV -- if the column densities were N(sub H) greater than or approximately equal to 10(exp 21)/sq cm (for solar abundances).

Hamann, Fred; Barlow, Thomas A.; Beaver, E. A.; Burbidge, E. M.; Cohen, Ross D.; Junkkarinen, Vesa; Lyons, R.

1995-01-01

181

Modelo de accesibilidad de conceptos matematicos aplicados en el curso de Astronomia Descriptiva para estudiantes con impedimentos visuales en la UPR  

NASA Astrophysics Data System (ADS)

Este estudio utiliza metodologia de investigacion cualitativa, con el proposito de describir, analizar y evaluar los procesos de diseno y desarrollo de un modelo de accesibilidad que consiste en estrategias de ensenanza de las matematicas para estudiantes con impedimentos visuales matriculados en el curso de Astronomia Descriptiva en la UPR. Se utilizaron las siguientes estrategias para recopilar la informacion, 1) reflexiones de la investigadora en el proceso de diseno y desarrollo de las lecciones adaptadas, que se registraron en un diario reflexivo. 2) entrevista semiestructurada luego de haber trabajado las lecciones de aprendizaje adaptadas con los participantes. 3) observaciones y notas de la investigadora del trabajo de los participantes. Para obtener la informacion de los participantes se obtuvo los permisos institucionales necesarios; se seleccionaron los participantes y se validaron los instrumentos; se realizo el desarrollo de las lecciones adaptadas con los participantes; y finalmente, se analizo la informacion obtenida. El diseno de las lecciones de aprendizaje adaptadas se hizo siguiendo las recomendaciones curriculares de los temas de matematicas aplicados en el curso de Astronomia Descriptiva realizado por la investigadora durante su semestre de internado. El testimonio de las voces de los participantes se obtuvo del proceso de desarrollo de las lecciones de aprendizaje adaptadas de temas seleccionados de conceptos matematicos requeridos en el curso de Astronomia Descriptiva y de la entrevista semiestructurada con los participantes, luego de haber trabajado las lecciones de aprendizaje. Para el desarrollo de las lecciones de aprendizaje, se utilizaron materiales tactiles adaptados, materiales tactiles disenados y materiales disponibles comercialmente. Los textos de las lecciones se imprimieron en tinta y en Braille. Se exhorta a disenar y desarrollar estrategias de ensenanza accesibles, considerando como recursos para evaluar su efectividad a personas con impedimentos visuales. El utilizar estrategias de aprendizaje accesibles de acuerdo a las necesidades individuales de los estudiantes, contribuye para que los estudiantes con impedimentos visuales descubran, exploren, investiguen y formulen sus propias conclusiones durante su proceso de aprendizaje.

Isidro Villamizar, Gloria Maria

182

User's manual (UM) for the enhanced logistics intratheater support tool (ELIST) database utility segment version 8.1.0.0 for solaris 7.  

SciTech Connect

This document is the User's Manual (UM) for the Enhanced Logistics Intratheater Support Tool (ELIST) Database Utility Segment. It tells how to use its features to administer ELIST database user accounts.

Dritz, K.

2002-03-06

183

Luto por um avio aparecido Destroos captados por satlite indicam que o voo MH37O caiu no ndico. A esperana desaparece. A dor no  

E-print Network

- nh de 11 de dezembro de 1999. Estava a olhar para a televiso, lembra-se, para um mapa dos Aores com Cox e tambm Richard Aboulafia (da consultora Teal Group) reconhe- cem que existe o risco de se repe

Instituto de Sistemas e Robotica

184

ON THE COMPACT H II GALAXY UM 408 AS SEEN BY GMOS-IFU: PHYSICAL CONDITIONS  

SciTech Connect

We present Integral Field Unit GMOS-IFU data of the compact H II galaxy UM 408, obtained at the Gemini South telescope, in order to derive the spatial distribution of emission lines and line ratios, kinematics, plasma parameters, and oxygen abundances as well the integrated properties over an area of 3''x4.''4 equivalent with {approx}750 pc x 1100 pc located in the central part of the galaxy. The starburst in this area is resolved into two giant regions of about 1.''5 and 1'' ({approx}375 and {approx}250 pc) diameter, respectively and separated 1.5-2'' ({approx}500 pc). The extinction distribution concentrate its highest values close but not coincident with the maxima of H{alpha} emission around each one of the detected regions. This indicates that the dust has been displaced from the exciting clusters by the action of their stellar winds. The ages of these two regions, estimated using H{beta} equivalent widths, suggest that they are coeval events of {approx}5 Myr with stellar masses of {approx}10{sup 4} M {sub sun}. We have also used [O III]/H{beta} and [S II]/H{alpha} ratio maps to explore the excitation mechanisms in this galaxy. Comparing the data points with theoretical diagnostic models, we found that all of them are consistent with excitation by photoionization by massive stars. The H{alpha} emission line was used to measure the radial velocity and velocity dispersion. The heliocentric radial velocity shows an apparent systemic motion where the east part of the galaxy is blueshifted, while the west part is redshifted, with a relative motion of {approx}10 km s{sup -1}. The velocity dispersion map shows supersonic values typical for extragalactic H II regions. We derived an integrated oxygen abundance of 12+log(O/H) = 7.87 summing over all spaxels in our field of view. An average value of 12+log(O/H) = 7.77 and a difference of {delta}(O/H) = 0.47 between the minimum and maximum values (7.58 {+-} 0.06-8.05 {+-} 0.04) were found, considering all data points where the oxygen abundance was measured. The spatial distribution of oxygen abundance does not show any significant gradient across the galaxy. On the other hand, the bulk of data points are lying in a region of {+-}2{sigma} dispersion (with {sigma} = 0.1 dex) around the average value, confirming that this compact H II galaxy, like other previously studied dwarf irregular galaxies, is chemically homogeneous. Therefore, the new metals processed and injected by the current star formation episode are possibly not observed and reside in the hot gas phase, whereas the metals from previous events are well mixed and homogeneously distributed through the whole extent of the galaxy.

Lagos, Patricio; Telles, Eduardo [Observatorio Nacional, Rua Jose Cristino, 77, Rio de Janeiro, 20921-400 (Brazil); Munoz-Tunon, Casiana [Instituto de Astrofisica de Canarias, Via Lactea s/n, 38200 La Laguna (Spain); Carrasco, Eleazar R. [Gemini Observatory/AURA, Southern Operations Center, Casilla 603, La Serena (Chile); Cuisinier, Francois [Observatorio do Valongo UFRJ, Ladeira do Pedro Antonio 43, Rio de Janeiro 20080-090 (Brazil); Tenorio-Tagle, Guillermo [Instituto Nacional de Astrofisica Optica y Electronica, AP 51, 72000 Puebla (Mexico)], E-mail: plagos@iac.es, E-mail: etelles@on.br, E-mail: cmt@iac.es, E-mail: rcarrasco@gemini.edu, E-mail: francois@ov.ufrj.br, E-mail: gtt@inaoep.mx

2009-06-15

185

Searching for radiative pumping lines of OH masers: II. The 53.3um absorption line towards 1612MHz OH maser sources  

E-print Network

This paper analyzes the 53.3um line in the ISO LWS spectra towards a similar sample of OH/IR sources. We find 137 LWS spectra covering 53.3um and associated with 47 galactic OH/IR sources. Ten of these galactic OH/IR sources are found to show and another 5 ones tentatively show the 53.3um absorption while another 7 sources highly probably do not show this line. The source class is found to be correlated with the type of spectral profile: red supergiants (RSGs) and AGB stars tend to show strong blue-shifted filling emission in their 53.3um absorption line profiles while HII regions tend to show a weak red-shifted filling emission in the line profile. GC sources and megamasers do not show filling emission feature. It is argued that the filling emission might be the manifestation of an unresolved half emission half absorption profile of the 53.3um doublet. The 53.3 to 34.6um equivalent width (EW) ratio is close to unity for RSGs but much larger than unity for GC sources and megamasers while H II regions only show the 53.3um line. The pump rate defined as maser to IR photon flux ratio is approximately 5% for RSGs. The pump rates of GC sources are three order of magnitude smaller. Both the large 53.3 to 34.6um EW ratio and the small pump rate of the GC OH masers reflect that the two detected `pumping lines' in these sources are actually of interstellar origin. The pump rate of Arp 220 is 32%--much larger than that of RSGs, which indicates that the contribution of other pumping mechanisms to this megamaser is important.

J. H. He; P. S. Chen

2004-06-29

186

Bem-estar em peixesRevista de Etologia 2006, Vol.8, N1, 51-61 Bem-estar Animal: um Conceito Legtimo para Peixes?  

E-print Network

51 Bem-estar em peixesRevista de Etologia 2006, Vol.8, N°1, 51-61 Bem-estar Animal: um Conceito, Portugal Os peixes constituem um valioso recurso para os humanos. O seu bem-estar tem sido alvo de existentes. O conceito de bem-estar animal tem vindo a ser aplicado a peixes, com alguma controvérsia ligada

Floeter, Sergio Ricardo

187

Discovery of a Rich Cluster at z = 1.63 using the Rest-Frame 1.6um "Stellar Bump Sequence" Method  

E-print Network

We present a new two-color algorithm, the "Stellar Bump Sequence" (SBS), that is optimized for robustly identifying candidate high-redshift galaxy clusters in combined wide-field optical and mid-infrared (MIR) data. The SBS algorithm is a fusion of the well-tested cluster red-sequence method of Gladders & Yee (2000) with the MIR 3.6um - 4.5um cluster detection method developed by Papovich (2008). As with the cluster red-sequence method, the SBS identifies candidate overdensities within 3.6um - 4.5um color slices, which are the equivalent of a rest-frame 1.6um stellar bump "red-sequence". In addition to employing the MIR colors of galaxies, the SBS algorithm incorporates an optical/MIR (z' - 3.6um) color cut. This cut effectively eliminates foreground 0.2 1.0 galaxies and add noise when searching for high-redshift galaxy overdensities. We demonstrate using the z ~ 1 GCLASS cluster sample that similar to the red sequence, the stellar bump sequence appears to be a ubiquitous feature of high-redshift cluster...

Muzzin, Adam; Demarco, Ricardo; Lidman, Chris; Nantais, Julie; Hoekstra, Henk; Yee, H K C; Rettura, Alessandro

2013-01-01

188

Imagens do cu ontem e hoje - um multimdia interativo de astronomia e uma nova exposio no MAST  

NASA Astrophysics Data System (ADS)

"Imagens do Cu Ontem e Hoje" o ttulo de uma nova exposio que est sendo inaugurada no Museu de Astronomia e Cincias Afins (MCT), que inclui experimentos interativos, maquetes, rplicas e 8 terminais de computador com um multimdia interativo sobre Astronomia para consulta dos visitantes. O multimdia apresenta um contedo bastante extenso, que engloba quase todos os temas em Astronomia, consistindo numa fonte de divulgao e pesquisa para um pblico que vai das crianas at estudantes universitrios. O contedo est distribudo em mais de 500 pginas de texto divididas em 4 mdulos: "O Universo", "Espectroscopia", "Telescpios" e "Observando o Cu". Cada mdulo subdividido em 5 sees, em mdia, cada uma iniciada por uma animao que ilustra os temas a serem abordados na seo. Ao final da animao, uma lista de temas apresentada sob o ttulo "Saiba Mais". Para exemplificar, o mdulo "O Universo" contm as seguintes sees: "O Universo visto pelo homem", "Conhecendo o Sistema Solar", "Indo alm do Sistema Solar", "Nossa Galxia, a Via-Lctea" e "Indo mais alm, a imensido do Universo". A seo "Conhecendo o Sistema Solar", por sua vez, tem os seguintes temas: "A origem do Sistema Solar", "O Sol", "Os planetas", "Satlites, asterides, cometas e outros bichos..." e "O Sistema Solar em nmeros". Cada texto repleto de imagens, quadros, desenhos, esquemas, etc, alm de passatempos ao final de cada seo, incluindo jogos interativos, quadrinhos e curiosidades, que auxiliam o aprendizado de forma divertida. Apresentamos neste trabalho as idias gerais que permearam a produo da exposio, e uma viagem pelo multimdia para exemplificar sua estrutura e contedo. O multimdia ser posteriormente disponibilizado para o pblico externo pela pgina eletrnica do MAst e/ou por intermdio de uma publicao comercial.

Caretta, C. A.; Lima, F. P.; Requeijo, F.; Vieira, G. G.; Alves, F.; Valente, M. E. A.; de Almeida, R.; de Garcia, G. C.; Quixad, A. C.

2003-08-01

189

Community Structure and Activity of a Highly Dynamic and Nutrient-Limited Hypersaline Microbial Mat in Um Alhool Sabkha, Qatar  

PubMed Central

The Um Alhool area in Qatar is a dynamic evaporative ecosystem that receives seawater from below as it is surrounded by sand dunes. We investigated the chemical composition, the microbial activity and biodiversity of the four main layers (L1L4) in the photosynthetic mats. Chlorophyll a (Chl a) concentration and distribution (measured by HPLC and hyperspectral imaging, respectively), the phycocyanin distribution (scanned with hyperspectral imaging), oxygenic photosynthesis (determined by microsensor), and the abundance of photosynthetic microorganisms (from 16S and 18S rRNA sequencing) decreased with depth in the euphotic layer (L1). Incident irradiance exponentially attenuated in the same zone reaching 1% at 1.7-mm depth. Proteobacteria dominated all layers of the mat (24%42% of the identified bacteria). Anoxygenic photosynthetic bacteria (dominated by Chloroflexus) were most abundant in the third red layer of the mat (L3), evidenced by the spectral signature of Bacteriochlorophyll as well as by sequencing. The deep, black layer (L4) was dominated by sulfate reducing bacteria belonging to the Deltaproteobacteria, which were responsible for high sulfate reduction rates (measured using 35S tracer). Members of Halobacteria were the dominant Archaea in all layers of the mat (92%97%), whereas Nematodes were the main Eukaryotes (up to 87%). Primary productivity rates of Um Alhool mat were similar to those of other hypersaline microbial mats. However, sulfate reduction rates were relatively low, indicating that oxygenic respiration contributes more to organic material degradation than sulfate reduction, because of bioturbation. Although Um Alhool hypersaline mat is a nutrient-limited ecosystem, it is interestingly dynamic and phylogenetically highly diverse. All its components work in a highly efficient and synchronized way to compensate for the lack of nutrient supply provided during regular inundation periods. PMID:24658360

Al-Thani, Roda; Al-Najjar, Mohammad A. A.; Al-Raei, Abdul Munem; Ferdelman, Tim; Thang, Nguyen M.; Shaikh, Ismail Al; Al-Ansi, Mehsin; de Beer, Dirk

2014-01-01

190

The U. S. Geological Survey, Digital Spectral Library: Version 1 (0.2 to 3.0um)  

USGS Publications Warehouse

We have developed a digital reflectance spectral library, with management and spectral analysis software. The library includes 498 spectra of 444 samples (some samples include a series of grain sizes) measured from approximately 0.2 to 3.0 um . The spectral resolution (Full Width Half Maximum) of the reflectance data is <= 4 nm in the visible (0.2-0.8 um) and <= 10 nm in the NIR (0.8-2.35 um). All spectra were corrected to absolute reflectance using an NIST Halon standard. Library management software lets users search on parameters (e.g. chemical formulae, chemical analyses, purity of samples, mineral groups, etc.) as well as spectral features. Minerals from borate, carbonate, chloride, element, halide, hydroxide, nitrate, oxide, phosphate, sulfate, sulfide, sulfosalt, and the silicate (cyclosilicate, inosilicate, nesosilicate, phyllosilicate, sorosilicate, and tectosilicate) classes are represented. X-Ray and chemical analyses are tabulated for many of the entries, and all samples have been evaluated for spectral purity. The library also contains end and intermediate members for the olivine, garnet, scapolite, montmorillonite, muscovite, jarosite, and alunite solid-solution series. We have included representative spectra of H2O ice, kerogen, ammonium-bearing minerals, rare-earth oxides, desert varnish coatings, kaolinite crystallinity series, kaolinite-smectite series, zeolite series, and an extensive evaporite series. Because of the importance of vegetation to climate-change studies we have include 17 spectra of tree leaves, bushes, and grasses. The library and software are available as a series of U.S.G.S. Open File reports. PC user software is available to convert the binary data to ascii files (a separate U.S.G.S. open file report). Additionally, a binary data files are on line at the U.S.G.S. in Denver for anonymous ftp to users on the Internet. The library search software enables a user to search on documentation parameters as well as spectral features. The analysis system includes general spectral analysis routines, plotting packages, radiative transfer software for computing intimate mixtures, routines to derive optical constants from reflectance spectra, tools to analyze spectral features, and the capability to access imaging spectrometer data cubes for spectral analysis. Users may build customized libraries (at specific wavelengths and spectral resolution) for their own instruments using the library software. We are currently extending spectral coverage to 150 um. The libraries (original and convolved) will be made available in the future on a CD-ROM.

Clark, Roger N.; Swayze, Gregg A.; Gallagher, Andrea J.; King, Trude V.V.; Calvin, Wendy M.

1993-01-01

191

Morphology of Spitzer 24um-Detected Galaxies in the UDF: the Links between the Star Formation and Galaxy Morphology  

Microsoft Academic Search

We have studied the morphologies of luminous infrared galaxies (LIRGs;\\u000aL_IR(8-1000um)>10^11 Lsun) at 0.3< z<1.4 in the HST Ultradeep Field (UDF) by\\u000acalculating concentration and asymmetry indices and comparing the results with\\u000asimilar calculations for: (1) galaxies at similar redshift that are less\\u000ainfrared-active; and (2) local LIRGs. We find that the high-redshift samples\\u000aare dominated by galaxies with concentrations

Y. Shi; G. H. Rieke; C. Papovich; P. G. Perez-Gonzalez; E. Le Floch

2006-01-01

192

Silver and silver-bearing minerals at the Um Samiuki volcanogenic massive sulphide deposit, Eastern Desert, Egypt  

NASA Astrophysics Data System (ADS)

The Um Samiuki Zn Cu Pb Ag mineralisation, south Eastern Desert, Egypt is hosted by felsic volcanic rocks which form part of the 712-Ma-old, east-west-trending Shadli Volcanic Belt. Two major occurrences of massive sulphides are present at the top of rhyolitic breccia in the Western and Eastern mine areas. In each occurrence, a bornite-bearing zone is overlain by a pyrite-chalcopyrite-bearing zone and underlain by a disseminated, Cu-depleted zone. In the massive sulphide ore, sphalerite, chalcopyrite, pyrite, galena, bornite and tetrahedrite tennantite are major minerals, whereas arsenopyrite, pyrrhotite, molybdenite and magnetite are accessory phases. Covellite and digenite are common secondary minerals. Bornite, tetrahedrite tennantite and covellite contain high amounts of silver (averages of 1.97, 1.39 and 1.82 wt% respectively). Based on mineralogical balance calculations, bornite and covellite accommodate 80% of silver in the Um Samiuki deposit. Ag was incorporated in the crystal structure of the early-crystallised copper sulphides and sulphosalts and silver minerals. The temperature, sequential precipitation of the fluids and the structure of the crystallising phases control the distribution of silver. Post-depositional deformation and metamorphic processes caused liberation, remobilisation and redeposition of silver within the massive sulphides.

Shalaby, Ibrahim M.; Stumpfl, Eugen; Helmy, Hassan M.; El Mahallawi, Mahmoud M.; Kamel, Omar A.

2004-10-01

193

Cloning, nucleotide sequence, and expression of the chromate resistance determinant of Pseudomonas aeruginosa plasmid pUM505.  

PubMed Central

The chromate resistance determinant of Pseudomonas aeruginosa plasmid pUM505 was cloned into broad-host-range vector pSUP104. The hybrid plasmid containing an 11.1-kilobase insert conferred chromate resistance and reduced uptake of chromate in P. aeruginosa PAO1. Resistance to chromate was not expressed in Escherichia coli. Contiguous 1.6- and 6.3-kilobase HindIII fragments from this plasmid hybridized to pUM505 but not to P. aeruginosa chromosomal DNA and only weakly to chromate resistance plasmids pLHB1 and pMG6. Further subcloning produced a plasmid with an insert of 2,145 base pairs, which was sequenced. Analysis of deletions revealed that a single open reading frame was sufficient to determine chromate resistance. This open reading frame encodes a highly hydrophobic polypeptide, ChrA, of 416 amino acid residues that appeared to be expressed in E. coli under control of the T7 promoter. No significant homology was found between ChrA and proteins in the amino acid sequence libraries, but 29% amino acid identity was found with the ChrA amino acid sequence for another chromate resistance determinant sequenced in this laboratory from an Alcaligenes eutrophus plasmid (A. Nies, D. Nies, and S. Silver, submitted for publication). Images FIG. 3 FIG. 5 PMID:2152903

Cervantes, C; Ohtake, H; Chu, L; Misra, T K; Silver, S

1990-01-01

194

Geochemistry of the Neoproterozoic metasediments of Malhaq and Um Zariq formations, Kid metamorphic complex, Sinai, Egypt: Implications for source-area weathering, provenance, recycling, and depositional tectonic setting  

NASA Astrophysics Data System (ADS)

The Um Zariq and Malhaq formations occupy roughly the northern half of the Kid metamorphic complex of SE Sinai, in the NE part of the Arabian-Nubian Shield. The Um Zariq Formation metasediments are relicts of an old sedimentary sequence (Cryogenian; 813 6 Ma), whereas the Malhaq Formation records several phases of Ediacaran sedimentation and volcanic activity (615-607 Ma). The Um Zariq Formation is mainly represented by well-bedded metapelitic schists, while the Malhaq Formation comprises a series of structureless to schistose felsic to intermediate metavolcanics interbedded with mica-rich phyllites and schists. The Um Zariq metasediments are depleted in SiO2, CaO and K2O and enriched in TiO2, Al2O3 and K2O relative to those of the Malhaq Formation. Aside from the relatively low Ni and Cr concentrations, compatible transition elements of these metasediments are comparable to average crustal contents. Except for marked Sr depletion, LILEs are around average continental crust values. Pronounced negative Nb-Ta anomalies and enrichment of Um Zariq samples in Th, U, Zr, Ti and Y relative to Malhaq ones are the main features of HFSEs. The REE patterns of all samples are parallel to sub-parallel LREE-enriched, with distinct negative Eu anomalies and weakly fractionated HREE segments. The source rocks of the Malhaq Formation metasediments underwent mild to moderate chemical weathering, whereas those of the Um Zariq Formation have suffered severe chemical weathering. These metasediments are predominately derived from felsic to intermediate igneous sources, with a particular slight addition from recycled sedimentary source to the Malhaq Formation metasediments. They are collectively geochemically immature and have suffered minor sedimentary recycling, with the experience of the Malhaq Formation metasediments from higher degree of sorting and reworking. The Malhaq and Um Zariq metasediments were originally deposited in a continental arc setting, most probably back-arc basin, despite the wide time span between their individual depositions.

El-Bialy, Mohammed Zaky

2013-08-01

195

Aplicao clnica das resinas de nanotecnologia Nanotechnology resins clinical application  

Microsoft Academic Search

Key-words A aparncia do sorriso tem grande impacto na vida dos indivduos, afetando desde o convvio social at relaes profissionais. Assim a Odontologia Esttica, com o passar do tempo, tem evoludo em busca de materiais e tcnicas restauradoras que mimetizem o aspecto natural dos elementos dentrios. Um dos saltos qualitativos foi conseguido com o emprego da nanotecnologia aos compsitos restauradores

Renan Menezes Cardoso; George Henrique; Santos Maia; Clnio Alves Melo; Renata Pedrosa Guimares; Paulo Fonseca

196

The yfhQ gene of Escherichia coli encodes a tRNA:Cm32/Um32 methyltransferase  

PubMed Central

Background Naturally occurring tRNAs contain numerous modified nucleosides. They are formed by enzymatic modification of the primary transcripts during the complex RNA maturation process. In model organisms Escherichia coli and Saccharomyces cerevisiae most enzymes involved in this process have been identified. Interestingly, it was found that tRNA methylation, one of the most common modifications, can be introduced by S-adenosyl-L-methionine (AdoMet)-dependent methyltransferases (MTases) that belong to two structurally and phylogenetically unrelated protein superfamilies: RFM and SPOUT. Results As a part of a large-scale project aiming at characterization of a complete set of RNA modification enzymes of model organisms, we have studied the Escherichia coli proteins YibK, LasT, YfhQ, and YbeA for their ability to introduce the last unassigned methylations of ribose at positions 32 and 34 of the tRNA anticodon loop. We found that YfhQ catalyzes the AdoMet-dependent formation of Cm32 or Um32 in tRNASer1 and tRNAGln2 and that an E. coli strain with a disrupted yfhQ gene lacks the tRNA:Cm32/Um32 methyltransferase activity. Thus, we propose to rename YfhQ as TrMet(Xm32) according to the recently proposed, uniform nomenclature for all RNA modification enzymes, or TrmJ, according to the traditional nomenclature for bacterial tRNA MTases. Conclusion Our results reveal that methylation at position 32 is carried out by completely unrelated TrMet(Xm32) enzymes in eukaryota and prokaryota (RFM superfamily member Trm7 and SPOUT superfamily member TrmJ, respectively), mirroring the scenario observed in the case of the m1G37 modification (introduced by the RFM member Trm5 in eukaryota and archaea, and by the SPOUT member TrmD in bacteria). PMID:16848900

Purta, Elzbieta; van Vliet, Franoise; Tkaczuk, Karolina L; Dunin-Horkawicz, Stanislaw; Mori, Hirotada; Droogmans, Louis; Bujnicki, Janusz M

2006-01-01

197

Mental health problems of undocumented migrants (UMs) in the Netherlands: a qualitative exploration of help-seeking behaviour and experiences with primary care  

PubMed Central

Objective To explore health-seeking behaviour and experiences of undocumented migrants (UMs) in general practice in relation to mental health problems. Design Qualitative study using semistructured interviews and thematic analysis. Participants 15 UMs in the Netherlands, varying in age, gender, country of origin and education; inclusion until theoretical saturation was reached. Setting 4 cities in the Netherlands. Results UMs consider mental health problems to be directly related to their precarious living conditions. For support, they refer to friends and religion first, the general practitioner (GP) is their last resort. Barriers for seeking help include taboo on mental health problems, lack of knowledge of and trust in GPs competencies regarding mental health and general barriers in accessing healthcare as an UM (lack of knowledge of the right to access healthcare, fear of prosecution, financial constraints and practical difficulties). Once access has been gained, satisfaction with care is high. This is primarily due to the attitude of the GPs and the effectiveness of the treatment. Reasons for dissatisfaction with GP care are an experienced lack of time, lack of personal attention and absence of physical examination. Expectations of the GP vary, medication for mental health problems is not necessarily seen as a good practice. Conclusions UMs often see their precarious living conditions as an important determinant of their mental health; they do not easily seek help for mental health problems and various barriers hamper access to healthcare for them. Rather than for medication, UMs are looking for encouragement and support from their GP. We recommend that barriers experienced in seeking professional care are tackled at an institutional level as well as at the level of GP. PMID:25416057

Teunissen, Erik; Sherally, Jamilah; van den Muijsenbergh, Maria; Dowrick, Chris; van Weel-Baumgarten, Evelyn; van Weel, Chris

2014-01-01

198

The c2d Spitzer Spectroscopic Survey of Ices Around Low-Mass Young Stellar Objects: I. H2O and the 5-8 um Bands  

E-print Network

With the goal to study the physical and chemical evolution of ices in solar-mass systems, a spectral survey is conducted of a sample of 41 low luminosity YSOs using 3-38 um Spitzer and ground-based spectra. The long-known 6.0 and 6.85 um bands are detected toward all sources, with the Class 0-type YSOs showing the deepest bands ever observed. In almost all sources the 6.0 um band is deeper than expected from the bending mode of pure solid H2O. The depth and shape variations of the remaining 5-7 um absorption indicate that it consists of 5 independent components, which, by comparison to laboratory studies, must be from at least 8 different carriers. Simple species are responsible for much of the absorption in the 5-7 um region, at abundances of 1-30% for CH3OH, 3-8% for NH3, 1-5% for HCOOH, ~6% for H2CO, and ~0.3% for HCOO- with respect to solid H2O. The 6.85 um band likely consists of one or two carriers, of which one is less volatile than H2O because its abundance relative to H2O is enhanced at lower H2O/tau_9.7 ratios. It does not survive in the diffuse interstellar medium (ISM), however. The similarity of the 6.85 um bands for YSOs and background stars indicates that its carrier(s) must be formed early in the molecular cloud evolution. If an NH4+ salt is the carrier its abundance with respect to solid H2O is typically 7%, and low temperature acid-base chemistry or cosmic ray induced reactions must have been involved in its formation. Possible origins are discussed for the carrier of an enigmatic, very broad absorption between 5 and 8 um. Finally, all the phenomena observed for ices toward massive YSOs are also observed toward low mass YSOs, indicating that processing of the ices by internal ultraviolet radiation fields is a minor factor in the early chemical evolution of the ices. [abridged

A. Boogert; K. Pontoppidan; C. Knez; F. Lahuis; J. Kessler-Silacci; E. van Dishoeck; G. Blake; J. Augereau; S. Bisschop; S. Bottinelli; T. Brooke; J. Brown; A. Crapsi; N. Evans II; H. Fraser; V. Geers; T. Huard; J. Jorgensen; K. Oberg; L. Allen; P. Harvey; D. Koerner; L. Mundy; D. Padgett; A. Sargent; K. Stapelfeldt

2008-01-08

199

'~nd'Vf {1 R f 0 10 A I 1 (I N ISP:tUm~ UHP:M~ UIYI~UJt4 ANN ARBOR,MICH  

E-print Network

'~nd'Vf {1 R f 0 10 A I 1 (I N 0 ~ 11/29/66 ISP:tUm~ UHP:M~ UIYI~UJt4 ANN ARBOR,MICH SIDE) and the command verification word {mainframe 46) #12;BENDIX SYSTEMS DIVISION ANN ARBOR,MICH NO. REV.NO. SIDE/ CC

Rathbun, Julie A.

200

ANLISE DE UM ALGORITMO PARA OTIMIZAO DE REDES DE FILAS H. A. L. BARBOSA, G. B. CALDAS, F. R. B. CRUZ  

E-print Network

ANLISE DE UM ALGORITMO PARA OTIMIZAO DE REDES DE FILAS H. A. L. BARBOSA, G. B. CALDAS, F. R. B de reas de espera em redes de filas finitas, abertas e acclicas, com servios gerais e servidores nmero de servidores da rede, como era de se esperar, mas independe do quadrado do coeficiente de

Cruz, Frederico

201

Grant Title: NATIONAL COOPERATIVE DRUG DISCOVERY AND DEVELOPMENT GROUPS (NCDDDG) FOR THE TREATMENT OF MENTAL DISORDERS, DRUG OR ALCOHOL ADDICTION (UM1,U19)  

E-print Network

OF MENTAL DISORDERS, DRUG OR ALCOHOL ADDICTION (UM1,U19) Funding Opportunity Number: PAR-13-087, PAR-13 mental illness, drug or alcohol addiction. Release and Expiration: Release Date: January 11, 2013 of pharmacological agents to treat and to study mental illness, drug or alcohol addiction. The objectives

Farritor, Shane

202

Dear Colleagues, The following is the UM Alcohol and Other Drugs Policy, which is being distributed to all faculty, staff and  

E-print Network

Dear Colleagues, The following is the UM Alcohol and Other Drugs Policy, which is being distributed a student's alcohol or other drug use, please refer them to Counseling and Psychological Services, which System University of Michigan Health System University of Michigan Alcohol and Other Drugs (AOD) Policy

Eustice, Ryan

203

Journal of Counter-Ordnance Technology (Fifth International Sy um on Technology and Mine Problem) 1 Hydrodynamics of Falling Mine in Water Column  

E-print Network

Journal of Counter-Ordnance Technology (Fifth International Sy um on Technology and Mine Problem) 1 1 mposi Hydrodynamics of Falling Mine in Water Column Peter C. Chu, Anthony F. Gilles, Chenwu Fan, Peter Fleischer Abstract-- The hydrodynamic features of a falling mine into the water column

Chu, Peter C.

204

Journal of Counter-Ordnance Technology (Sixth International Sym um on Technology and Mine Problem, NPS, 10-13 Uncertainty in Acoustic Mine Detection Due to  

E-print Network

Journal of Counter-Ordnance Technology (Sixth International Sym um on Technology and Mine Problem, NPS, 10-13 May, 2004) 1 1 posi Uncertainty in Acoustic Mine Detection Due to Environmental Variability and sea mines, both of which present a credible threat to invading forces and require a disproportionately

Chu, Peter C.

205

Leading the way,staying in touch,making the difference spring 14 UM-Dearborn geology students don't  

E-print Network

, you will learn more about the excep- tional research being conducted by our students, faculty, staffEpARTmEnTS 3 Chancellor's Perspective Daniel Little discusses experiential learning. 4 On the Pond What's happening, what's new and what's what at UM-Dearborn 24 AfterSchool School Ties, Alumni Engagement, Why I

Lu, Yi

206

LQES Laboratrio de Qumica do Estado Slido Instituto de Qumica -UNICAMP http://lqes.iqm.unicamp.br Nanocincia e Nanotecnologia: um bom motivo para a  

E-print Network

://lqes.iqm.unicamp.br Nanocincia e Nanotecnologia: um bom motivo para a Cooperao Cientfica Brasil-Argentina Oswaldo Luiz Alves, Campinas, SP, Brasil. oalves@iqm.unicamp.br 1. Introduo A Nanocincia e a Nanotecnologia (N&N) - reas do Nanocincias e Nanotecnologia. Fazendo uso da Internet e, algumas vezes, das facilidades de vdeo

Campinas, Universidade Estadual de

207

Calculus Courses for UM Freshmen MTH 161: Calculus I, 4 credits. Limits and continuity, derivatives and applications, the definite integral and  

E-print Network

Calculus Courses for UM Freshmen MTH 161: Calculus I, 4 credits. Limits and continuity, derivatives, with a pre-med track, or in a BS program. MTH 171: Calculus I, 4 credits. The theory of limits only. MTH 172: Calculus II, 4 credits. Additional topics on the derivative and definite integral

Shyu, Mei-Ling

208

ALTERNATIVE FUEL VEHICLE (AFV) INFORMATION Over 98% of the U-M auto passenger fleet is flex fuel vehicles (FFV). A FFV is capable of operating on  

E-print Network

ALTERNATIVE FUEL VEHICLE (AFV) INFORMATION Over 98% of the U-M auto passenger fleet is flex fuel with ethanol's chemical properties. FFV's qualify as alternative fuel vehicles under the Energy Policy Act of both. FFV's are equipped with an engine and fuel system designed specifically to be compatible

Kirschner, Denise

209

Technology Development for High-Efficiency Solar Cells and Modules Using Thin (<80 um) Single-Crystal Silicon Wafers Produced by Epitaxy: June 11, 2011 - April 30, 2013  

SciTech Connect

Final technical progress report of Crystal Solar subcontract NEU-31-40054-01. The objective of this 18-month program was to demonstrate the viability of high-efficiency thin (less than 80 um) monocrystalline silicon (Si) solar cells and modules with a low-cost epitaxial growth process.

Ravi, T. S.

2013-05-01

210

Significant Awards and Recognition U-M Hospitals and Health Centers receive the 2011 Environmental Leadership Circle Award for fifth year  

E-print Network

and benefits, and work/life balance. The U-M Health System was one of 27 health care facilities campus- wide initiatives in energy efficiency, recycling, and alternative transportation. Environmental and 2003 Michigan Recycling Coalition Recycler-of-Year in the Outstanding Reduction and Reuse Program

Shyy, Wei

211

FUEL DEVICE APPLICATION Use this application to request a fuel device to access the University of Michigan (U-M) Parking and Transportation  

E-print Network

FUEL DEVICE APPLICATION Use this application to request a fuel device to access the University of Michigan (U-M) Parking and Transportation Services (PTS) service stations for fuel. A fuel device owned and managed by PTS Fleet Services equipped with an automated fuel device. Please read the Use

Kirschner, Denise

212

Eixo temtico : Gesto de Bacias Hidrogrficas e a Dinmica Hidrolgica. CARACTERIZAO GEOAMBIENTAL E MORFOMTRICA DE UM TRECHO DO MDIO CURSO DA BACIA HIDROGRFICA DO RIO PACOTI\\/CE  

Microsoft Academic Search

RESUMO As alteraes ocorridas a partir da Revoluo Industrial intensificaram o uso dos recursos naturais, propiciando novas formas de apropriao dos territrios, acelerando o esgotamento de elementos da natureza e do ambiente, tornando as riquezas naturais cada vez mais escassas, raras e caras. O uso dos recursos hdricos e sua conservao um dos principais desafios do desenvolvimento sustentvel, devido

Marta Celina

213

Percepo astronmica de um grupo de alunos do ensino mdio de uma escola da rede estadual de So Paulo  

NASA Astrophysics Data System (ADS)

Sendo a Astronomia uma das cincias mais antigas da humanidade, e considerando sua importncia histrica e cultural, de extrema relevncia que tpicos relacionados a ela sejam tratados nas escolas. Embora os Parmetros Curriculares Nacionais do Ensino Mdio (PCN-EM) e as Orientaiacute;es Complementares aos Parmetros (PCN+) apontem a importncia de uma abordagem significativa de conceitos relacionados Astronomia nas aulas de Fsica, muitos estudantes terminam o Ensino Mdio (EM) sem compreender a razo de certos acontecimentos de origem celeste, ainda que estes faam parte de seu cotidiano e sejam alvos da curiosidade natural dos jovens. Da observao dessa curiosidade em alunos de uma escola pblica paulista, na cidade de Suzano, surgiu o interesse em investigar os conhecimentos bsicos em Astronomia dos alunos do Ensino Mdio desta escola, constituindo-se este como principal objetivo desta pesquisa. Para tanto foi elaborado um questionrio de mltipla escolha aplicado inicialmente a 34 alunos do primeiro ano e, posteriormente, a mais 310, distribudos entre as trs sries do Ensino Mdio dos perodos matutino e noturno. Dessa forma, observou-se que 73,9% dos estudantes identificaram o Sol como sendo uma estrela, 67,1% mostraram compreender a sucesso entre dia e noite e 52,3% relacionaram o Big Bang origem do Universo. Em contrapartida, apenas 34,5% relacionaram as estaes do ano inclinao do eixo de rotao da Terra, 21,3% indicaram a influncia gravitacional simultnea da Lua e do Sol como responsvel pelo fenmeno das mars, 24,5% indicaram corretamente quais so os objetos celestes mais prximos da Terra, 36,1% identificaram ano-luz como uma medida de distncia e 34,2% reconheceram as estrelas cadentes como meteoros, evidenciando-se assim o pequeno discernimento dos estudantes quanto aos fenmenos e termos astronmicos do cotidiano. Alm disso, foram comparadas as respostas de alun! os de diferentes sries e perodos, observando-se, dentre ou tras coi sas, que os estudantes do terceiro ano apresentam um percentual de acertos semelhante ao dos alunos do primeiro, caracterizando que a abordagem de tpicos relacionados astronomia no Ensino Mdio no tem contribudo de forma significativa para uma maior compreenso dos fenmenos e conceitos.

de Oliveria, E. F.; Voelzke, M. R.

2009-03-01

214

Geochemical and K Ar age constraints on the Late Neoproterozoic (?) gneisses at Um Tenassib area, north Eastern Desert, Egypt  

NASA Astrophysics Data System (ADS)

Wadi Um Tenassib metamorphic rocks consist mainly of biotite gneiss and biotite-hornblende gneiss with subordinate intercalations of amphibolite, migmatitic gneiss, and aplitic granite. Biotite-hornblende gneiss, biotite gneiss, and aplitic granite are geochemically characterized and their cooling ages are determined by using the K-Ar method on biotite. The Um Tenassib gneisses (UTG) range in composition from quartz diorite/monzodiorite to granodiorite. They were derived from igneous rocks that pertain to calc alkaline and metaluminous to weakly peraluminous affinities and were generated in continental volcanic arc setting. REE patterns of the UTG are moderately fractionated (La N/Lu N = 5.9-7.5) relative to those of the aplitic granite (La N/Lu N = 33). The similarity in the geochemical characteristics and REE patterns of both gneiss types indicate their magmatic consanguinity. Amphiboles of the UTG biotite-hornblende gneisses are mainly hornblende, together with few paragasitic hornblende and edenite. Plagioclase composition is oligoclase to andesine (An 21-46) in the biotite-hornblende gneiss, and oligoclase (An 11-26) in the biotite gneiss. Mineral chemistry of amphibole and plagioclase indicate that the gneisses were metamorphosed under low- to medium-pressure of 2.6-6.4 kbar and at medium to high temperatures of 660-755 C. The K-Ar biotite cooling ages (seven samples) range from 585 12 Ma to 598 12 Ma for the UTG, except one biotite-hornblende gneiss sample gives age of 577 11 Ma. These ages suggest a latest metamorphic cooling event at ca. 585-600 Ma time span, which is consistent with the proposed cooling ages of 600 Ma for the Elat metamorphic rocks [Cosca, M.A., Shimron, A., Caby, R., 1999. Late Precambrian metamorphism and cooling in the Arabian-Nubian Shield: petrology and 40Ar/ 39Ar geochronology of metamorphic rocks of the Elat area (southern Israel). Precamb. Res. 98, 107-127]. It may indicate that the metamorphism of the UTG might have been contemporaneous with the suggested regional metamorphism at 620 10 Ma for Sinai metamorphic rocks (Cosca et al., 1999) and/or the emplacement age at 614 Ma for the granodiorite in the study area [Stern, R.J., Hedge, C.E., 1985. Geochronological and isotopic constraints on the Late Precambrian crustal evolution in the Eastern Desert of Egypt. Am. J. Sci. 285, 97-127]. These ages also lie within the range of magmatic activity of the Younger Granites in the North Eastern Desert (575-600 Ma).

Eliwa, Hassan A.

2007-05-01

215

Geochemistry of the Neoproterozoic metasediments of Malhaq and Um Zariq formations, Kid Metamorphic Complex, Sinai, Egypt: implications for source-area weathering, provenance, recycling, and depositional tectonic setting  

NASA Astrophysics Data System (ADS)

The Kid Metamorphic Complex of SE Sinai represents a thick volcano-sedimentary succession that underwent polyphase deformation and greenschist to upper amphibolite facies metamorphism in the NE part of the Arabian-Nubian Shield (ANS). The Malhaq and Um Zariq Formations, the target of this study, occupy roughly the northern half of this complex. The Malhaq Formation records several phases of Ediacaran sedimentation and volcanic activity (615-607 Ma), whereas Um Zariq Formation metasediments are relicts of an older sedimentary sequence (Cryogenian; 8136 Ma). The Malhaq Formation comprises a series of dark gray structureless to schistose felsic to intermediate metavolcanics interbedded and intercalated with fine- to medium-grained foliated mica-rich phyllites and schists, while the Um Zariq Formation is a dominantly metasedimentary sequence, mainly represented by well-bedded metapelitic schists. Malhaq metasediments are enriched in SiO2, CaO and K2O and depleted in TiO2, Al2O3 and K2O relative to those of Um Zariq Formation. Aside from the relatively low Ni and Cr concentrations, compatible transition elements of these metasediments are comparable to average crustal contents. Except for marked Sr depletion, LILEs are around average continental crust values. Pronounced negative Nb-Ta anomalies in all samples, and general enrichment of Um Zariq samples in Th, U, Zr, Ti and Y relative to Malhaq ones are the main features of HFSEs. The REE patterns of all samples are parallel to sub-parallel LREE-enriched, with distinct negative Eu anomalies and weakly fractionated HREE segments. Geochemical investigations have revealed that the source rocks of Malhaq Formation metasediments underwent mild to moderate chemical weathering, whereas those of Um Zariq Formation have suffered severe chemical weathering. These metasediments are predominately derived from felsic to intermediate igneous sources, with a particular slight addition from recycled sedimentary source to the Malhaq Formation metasediments. They are collectively geochemically immature and have suffered minor sedimentary recycling, with the bearing of Malhaq Formation metasediments from advanced degree of sorting and reworking. The Malhaq and Um Zariq metasediments had been originally deposited in a continental arc setting, most probably back-arc basin, despite the wide time span between their individual depositions. Various geochemical evidences imply that the main source from which these two chronologically distinct metasediments (Ediacaran vs. Cryogenian) have been derived from the juvenile (arc-type) Arabian-Nubian Shield crust.

El-Bialy, Mohammed Z.

2013-04-01

216

Jets and Outflows from Young Stellar Objects in the Carina Nebula Observed in [Fe II] 1.64 um  

NASA Astrophysics Data System (ADS)

We present [Fe II] 1.64 um imaging observations for jets and outflows from young stellar objects (YSOs) over the northern part (~24'x45') of the Carina Nebula, a massive star forming region. The observations were performed with IRIS2 of Anglo-Autralian Telescope and the seeing was ~1.5". Several jets and outflows features are detected at eight different regions, and named as forbidden emission line regions (FELRs). One new candidate for Herbig-Haro Object is identified comparing our [Fe II] images to H_alpha images of Hubble Space Telescope. FELRs have knotty or longish shapes, and distribute around the triangular area formed by three star clusters Tr 14, Tr 15, and Tr 16, which contain many massive stars. The detection rate of FELRs against previously identified YSOs is 1.4 %. We estimate the outflow rate from the [Fe II] flux based on some assumptions. The jet-driving objects are identified for three FELRs (FELR-2, -4, and -7), for which we study the relations between the outflow rate and the YSO physical parameters from the radiative transfer model fitting. The ratios of the outflow rate over the disk accretion rate are consistent for FELR-4 and -7 with the previously reported values, while it is higher for FELR-2. The masses of jet-driving objects are low or intermediate, and they are not likely to become massive stars (> 8 Ms). Other YSO physical parameters, such as luminosity and age, show reasonable relations or trends.

Shinn, Jong-Ho; Pyo, Tae-Soo; Lee, Jae-Joon; Lee, Ho-Gyu; Kim, Hyun-Jeong; Koo, Bon-Chul; Sung, Hwankyung; Chun, Moo Young; Lyo, A.-Ran; Moon, Dae-Sik; Kyeong, Jaemann; Park, Byeong-Gon; Hur, Hyeonoh; Lee, Yong-Hyun

2013-07-01

217

Morphology of Spitzer 24um-Detected Galaxies in the UDF: the Links between the Star Formation and Galaxy Morphology  

E-print Network

We have studied the morphologies of luminous infrared galaxies (LIRGs; L_IR(8-1000um)>10^11 Lsun) at 0.3UDF) by calculating concentration and asymmetry indices and comparing the results with similar calculations for: (1) galaxies at similar redshift that are less infrared-active; and (2) local LIRGs. We find that the high-redshift samples are dominated by galaxies with concentrations similar to local late-type disk galaxies; however, they are significantly more asymmetric than most local galaxies but are similar in both regards to local LIRGs. On average, the high-redshift infrared-active galaxies are slightly more asymmetric than the less-active ones, although they do include a significantly higher portion of highly asymmetric (merging?) systems and a lower portion of more concentrated, symmetric ones. The morphological similarity of infrared-active and typical infrared-inactive galaxies at high-redshift suggests that they may be from the same parent population, but ...

Shi, Y; Papovich, C; Prez-Gonzlez, P G; Rieke, G H

2006-01-01

218

Morphology of Spitzer 24um-Detected Galaxies in the UDF: the Links between the Star Formation and Galaxy Morphology  

E-print Network

We have studied the morphologies of luminous infrared galaxies (LIRGs; L_IR(8-1000um)>10^11 Lsun) at 0.3UDF) by calculating concentration and asymmetry indices and comparing the results with similar calculations for: (1) galaxies at similar redshift that are less infrared-active; and (2) local LIRGs. We find that the high-redshift samples are dominated by galaxies with concentrations similar to local late-type disk galaxies; however, they are significantly more asymmetric than most local galaxies but are similar in both regards to local LIRGs. On average, the high-redshift infrared-active galaxies are slightly more asymmetric than the less-active ones, although they do include a significantly higher portion of highly asymmetric (merging?) systems and a lower portion of more concentrated, symmetric ones. The morphological similarity of infrared-active and typical infrared-inactive galaxies at high-redshift suggests that they may be from the same parent population, but are in different stages of an episodic star formation process. The similarity between high-redshift and local LIRGs suggests that a certain level of asymmetry is generally associated with LIRG-level activity.

Y. Shi; G. H. Rieke; C. Papovich; P. G. Perez-Gonzalez; E. Le Floch

2006-03-17

219

Measurements on CO Concentration and gas temperature at 1.58 um with Tunable Diode Laser Absorption Spectroscopy  

NASA Astrophysics Data System (ADS)

The technique based on tunable diode laser absorption Spectroscopy (TDLAS) has been developed to realize the real-time and dynamic measurement of the combustion-generated pollutants. In this paper the fundamental of concentration and temperature measurement with TDLAS is presented. To validate the method, an experimental system of TDLAS is set up. A simple VCSEL diode without temperature controller is used for direct absorption and WMS setup. Restricted by modulation voltage and noise from diode laser and detector, concentration of 0.2% for 1 m path length can be detected. Temperature measurement in tube furnace is also carried out by CO2 absorption lines near 1.58um, and below 800K the difference between calculation by TDLAS and temperature signal by K-thermocouple is less than 60K. The method to eliminate the effects of the particles is also discussed here. By using three-order polynomial program, the measurement can be not affected by particles and power fluctuation.

Wang, Fei; Li, Ning; Huang, Qunxing; Yan, Jianhua; Cen, Kefa

2007-06-01

220

Rund um die Wirtschaftswissenschaftliche  

E-print Network

Studienleistungen, die an anderen deutschen Universitäten oder im Ausland erbracht wurden, wird durch das ECTS-System Internationale Büro. BWL in sieben Schwerpunkten: Accounting, Tax- ation and Capital Markets / Corporate Governance: Management and Corporate Control / Decision & Risk / Education, Labour Relations and Employment

Knüpfer, Christian

221

O PAPEL DE INDICADORES SCIO-ECONOMICOS E AMBIENTAIS NO MONITORAMENTO DOS EFEITOS DE UM PROJETO DE PASTOREIO-ZERO NA TANZNIA  

Microsoft Academic Search

Resumo Este artigo documenta os eventos que levaram ao iminente colapso de uma tentativa de reabilitar um ecossistema degradado na Tanznia central, concentrando-se nas conseqncias do fracasso em monitorar sistematicamente os indicadores scio-econmicos e ambientais. Em 1979, tomou-se uma deciso de retirar todo os animais de produo em pastoreio de uma rea semi-rida na Tanznia central devido a seu efeito

R. Brian Ogle

222

Conv^enio IMPA-Univ. Pierre et Marie Curie (Jussieu, Paris) Foi assinado recentemente um conv^enio entre o IMPA e a Universidade Pierre et Marie Curie  

E-print Network

Conv^enio IMPA-Univ. Pierre et Marie Curie (Jussieu, Paris) Foi assinado recentemente um conv^enio entre o IMPA e a Universidade Pierre et Marie Curie (UPMC, Jussieu, Paris). Est~ao previstas atividades

Solodov, Mikhail V.

223

O professor do IST diz que a poltica europeia hoje um deserto de ideias onde no h uma viso estratgica para o futuro  

E-print Network

EUA têm de remover as restrições legais à exportação de energia que vem dos anos 70. 0 que os líderesO professor do IST diz que a política europeia é hoje um deserto de ideias onde não há uma visão pensamento e convergência política. A segunda questão é a incapacidade de a Europa po- tenciar os seus

Instituto de Sistemas e Robotica

224

Deep 15um AKARI observations in the CDFS: estimating dust luminosities for a MIR-selected sample and for Lyman Break Galaxies and the evolution of L(dust)/L(UV) with the redshift  

E-print Network

Deep observations of the CDFS have been secured at 15um with AKARI/IRC infrared space telescope (ESA open time). From these observations, we define a sample of MIR-selected galaxies at 15um and we also obtain 15um flux densities for a sample of LBGs at z=1 already observed at 24um with Spitzer/MIPS. Number counts for the MIR-selected sample show a bump around a 15um flux density of 0.2mJy that can be attributed to galaxies at z>0.4 and at z>0.8 for the fainter part of the bump. This bump seems to be shifted as compared to other works and a possible origin can be the Cosmic variance. Thanks to this dataset, we have tested, on the two above samples at z=1, the validity of the conversions from monochromatic luminosities nu.f(nu) at a rest-frame wavelength of 8um by a comparison with total dust luminosities estimated from Spitzer rest-frame 12um data that we use as a reference. We find that the 8um dust luminosities are not all consistent and that some of them are better when compared to L(dust) evaluated from longer wavelength luminosities. We also find that the rest-frame 8um luminosities provide globally good estimates of L(dust). By comparing our data for the two samples to several libraries of SEDs, we find that models can explain the diversity of the observed f(24)/f(15) ratio quite reasonably for the MIR-selected sample and better for the LBG sample which are less dispersed than the MIR selection. However, when we analyse the luminosity dependence of this ratio, we find important discrepancies. Finally, we revisit the evolution of L(dust)/L(UV) ratio with the redshift z by re-calibrating previous L(dust) at z=2 based on our results and added new data points at higher redshifts. The decreasing trend is amplified as compared to the previous estimate.

Denis Burgarella; Veronique Buat; Tsutomu T. Takeuchi; Takehiko Wada; Chris Pearson

2008-11-23

225

Instituto Superior Tecnico Desenvolvimento de Modelos  

E-print Network

Pwetty Catarina. Vemo-nos em S~ao Francisco e Las Vegas. ii #12;Resumo Concepc~ao de uma arquitectura de. Implementac~ao da arquitectura desenvolvida aplicada ao futebol robotico. Palavras chave Arquitectura de iii #12;Indice 1 Introduc~ao 1 2 Arquitectura de Software 4 2.1 Futebol Rob

Instituto de Sistemas e Robotica

226

Colquio Interinstitucional Modelos Estocsticos e Aplicaes  

E-print Network

to the Brownian motion. It will be a pleasant opportunity to advertise part of the PhD thesis of my latest student us with was finally achieved by means of the application of probabilistic concepts to mechanical systems within the Statistical Mechanics approach and the assumption of the macroscopic (Thermodynamic

Liu, I-Shih

227

MODELO DE VELOCIDADES SSMICAS DE CUBA ORIENTAL  

Microsoft Academic Search

This study determines a one-dimensional seismic velocity model to be used in the daily routine analysis of earthquake data. This is useful for the geographical localization of the seismic events as well as an initial model for 3D seismic tomography studies. In order to calculate the velocity model, the Cuban earthquake catalogue from 1998 until the 2004 was used. The

Ral Palau Clares; Bladimir Moreno Toirn; Miguel ngel; Blanco Rodrguez

228

Modelos latinos en la Castilla medieval  

E-print Network

@iberoamericanalibros.com www.ibero-americana.net © Vervuert, 2010 Elisabethenstr. 3-9 ­ D-60594 Frankfurt am Main Tel. +49695974617 Fax +49695978743 info@iberoamericanalibros.com www.ibero-americana.net ISBN 978IeVales castellanas 131 Ana Serradilla Castaño la subordInacIón comPletIVa en esPañol antIguo: contInuIdad y ru

Paris-Sud XI, Université de

229

User's manual (UM) for the enhanced logistics intratheater support tool (ELIST) software segment version 8.1.0.0 for solaris 7.  

SciTech Connect

This document is the User's Manual (UM) for the Enhanced Logistics Intratheater Support Tool (ELIST) Software Segment. It tells how to use the end-user and administrative features of the segment. The instructions in Sections 4.2.1, 5.3.1, and 5.3.2 for the end-user features (Run ELIST and Run ETEdit) only cover the launching of those features in the DII COE environment; full details on the operation of ELIST and ETEdit in any environment can be found in the documents listed in Section 2.1.3 and referenced elsewhere in this document. On the other hand, complete instructions for the administrative features (Add Map Data and Delete Map Data) are presented in Sections 4.2.2, 5.3.3, and 5.3.4 of this document.

Dritz, K.

2002-03-06

230

Anlise sobre o Conhecimento de um Grupo de Alunos do Ensino Mdio da Rede Estadual de So Paulo sobre Termos e Fenmenos Astronmicos do Cotidiano  

NASA Astrophysics Data System (ADS)

Embora os Parmetros Curriculares Nacionais do Ensino Mdio (PCN-EM) e as orientaes complementares a esses Parmetros (PCN+) apontem a importncia de uma abordagem significativa de conceitos relacionados astronomia nas aulas de Fsica, muitos estudantes terminam o Ensino Mdio (EM) sem compreender a razo de certos acontecimentos de origem celeste, ainda que estes faam parte de seu cotidiano. Este trabalho tem por objetivo analisar os conhecimentos bsicos em astronomia dos alunos de EM da escola estadual Batista Renzi, bem como investigar os meios atravs dos quais estes conhecimentos foram adquiridos. Para tanto foi elaborado um questionrio de mltipla escolha aplicado a 310 alunos distribudos entre as trs sries do EM dos perodos matutino e noturno. Dessa forma, observou-se que apenas 34,5% relacionaram as estaes do ano inclinao do eixo de rotao da Terra, 21,3% indicaram a influncia gravitacional da Lua e do Sol como responsveis pelo fenmeno das mars, 24,5% indicaram corretamente quais so os objetos celestes mais prximos da Terra, 36,1% identificaram ano-luz como uma medida de distncia e 34,2% reconheceram uma estrela cadente como meteoro. Em contrapartida, 67,1% compreendiam a sucesso entre dia e noite, 73,9% identificaram o Sol como estrela e 52,3% relacionaram o Big Bang origem do Universo. Alm disso, foram comparadas as respostas de alunos de diferentes sries e perodos, observando-se, dentre outras coisas, que os estudantes do terceiro ano apresentam um percentual de acertos semelhante ao dos alunos do primeiro, caracterizando que a abordagem de tpicos relacionados astronomia no EM no tem contribudo para uma maior compreenso dos fenmenos e conceitos.

de Oliveira, E. F.; Voelzke, M. R.; Amaral, L. H.

2007-08-01

231

Na recente data de 23 de Agosto de 2011, tivemos um encontro de estudos onde nossa companheira Irta introduziu-nos o tema Timor-Leste, atravs do documentrio de 40 minutos,  

E-print Network

mundo não viu. A questão da guerra tão recente e tão pouco comentada na mídia mundial, um país que oNa recente data de 23 de Agosto de 2011, tivemos um encontro de estudos onde nossa companheira Irta a apresentadora Irta. Após prestigiarmos o documentário este que nos deu uma ampla visão sobre a guerra no país

Floeter, Sergio Ricardo

232

Automating the Hunt for Volcanoes on Venus M.C. Burl yz , U.M. Fayyad z , P. Perona y , P. Smyth z , and M.P. Burl z  

E-print Network

Automating the Hunt for Volcanoes on Venus M.C. Burl yz , U.M. Fayyad z , P. Perona y , P. Smyth z and statistical pattern recog­ nition techniques, for automatically locating volcanoes in the Magellan SAR database of Venus. Training for the specific volcano­detection task is obtained by synthesizing feature

Smyth, Padhraic

233

Project UM-HAUL (UnManned Heavy pAyload Unloader and Lander): The design of a reusable lunar lander with an independent cargo unloader  

NASA Technical Reports Server (NTRS)

Project UM-Haul is the preliminary design of a reusable lunar transportation vehicle that travels between a lunar parking orbit and the lunar surface. This vehicle is an indispensible link in the overall task of establishing a lunar base as defined by the NASA Space Exploration Initiative. The response to this need consists of two independent vehicles: a lander and an unloader. The system can navigate and unload itself with a minimum amount of human intervention. The design addresses structural analysis, propulsion, power, controls, communications, payload handling and orbital operations. The Lander has the capacity to decend from low lunar orbit (LLO) to the lunar surface carrying a 7000 kg payload, plus the unloader, plus propellant for ascent to LLO. The Lander employs the Unloader by way of a motorized ramp. The Unloader is a terrain vehicle capable of carrying cargoes of 8,500 kg mass and employs a lift system to lower payloads to the ground. The system can perform ten missions before requiring major servicing.

1991-01-01

234

Modelling future changes in climate, ozone-depleting substances and ozone precursor emissions using the whole-atmosphere UM-UKCA model  

NASA Astrophysics Data System (ADS)

Using the recently upgraded whole-atmosphere UM-UKCA chemistry-climate model, we investigate the atmospheric response to future changes in a) greenhouse gases under the RCP4.5 and 8.5 scenarios for climate change, b) ozone-depleting substances (ODS) and a recovery of the ozone layer and c) ozone precursor emissions and tropospheric oxidising capacity. In addition, we combine theses scenarios in order to explore the interactions between individual perturbations. Within this framework, the coupled stratosphere-troposphere system and whole-atmosphere chemistry allows us to study the impacts of changes in composition of the stratosphere on the troposphere and vice versa. Under a scenario for moderate climate change (RCP4.5), we find that by the year 2100: 1) the stratosphere significantly impacts the troposphere via changes in stratosphere-troposphere exchange (STE) but the chemical changes induced in the troposphere do not impact the stratosphere, 2) perturbations are linearly additive with regard to the total ozone column and tropospheric odd oxygen budget, 3) while the Brewer-Dobson circulation strengthens under climate change (with an increase in the tropical upward mass flux at 70hPa of 17%), this strengthening is offset by ozone recovery (which on its own leads to a decrease in the mass flux of 9%) and 4) the tropospheric ozone burden decreases by 10% given mitigation of its precursor emissions but this is offset by climate change and stratospheric ozone recovery (9% and 6% increases in the burden respectively).

Banerjee, A.; Archibald, A. T.; Maycock, A. C.; Abraham, L.; Telford, P.; Braesicke, P.; Pyle, J. A.

2013-12-01

235

Espectroscopia multi-objeto e imageamento de Abell 586 com GMOS - o estado dinmico de um aglomerado de galxias com arcos gravitacionais  

NASA Astrophysics Data System (ADS)

Nesse trabalho apresentado um estudo do contedo de massa do aglomerado de galxias A586 (z = 0.171) bem como sua distribuio espacial. Isso foi feito a partir de dados de espectroscopia multi-objeto e imageamento obtidos com o instrumento GMOS acoplado ao telescpio Gemini-Norte. A massa desse aglomerado foi estudada a partir da posio dos seus arcos gravitacionais (lentes fortes), da medida estatstica da distoro na forma das galxias de fundo (lentes fracas) e atravs da disperso de velocidades de uma amostra de cerca de 30 galxias pertencentes ao aglomerado (teorema do virial). Os dois primeiros mtodos no dependem do estado dinmico do aglomerado, enquanto que o terceiro sim. Desse modo, comparando seus resultados pode-se estimar o grau de relaxamento desse sistema. Dados de raios X presentes na literatura tambm sero includos nessa anlise. Nossos resultados preliminares a partir das tcnicas de lentes fracas, mostram que, supondo que a distribuio de massa desse aglomerado seja a de uma esfera isotrmica, espera-se que ele apresente uma disperso de velocidades de 1330+/-78 km s-1, em contradicao com medidas similares feitas por Dahle et al. 2002 que encontram valores to altos quanto 1680 km s-1. J o estudo dinmico resultou numa disperso de velocidades de ~950 km s-1.

Cypriano, E. S.; Sodr, L., Jr.; Kneib, J.-P.; Campusano, L.

2003-08-01

236

UM ID NUMBER RSMAS General  

E-print Network

APPLICATION Campus Address Entered By: Sale Replacement Exchange Payment: Credit Card Check Money Order Other purchasing a parking permit. A replacement fee will be asssessed on all lost or stolen permits. Retirees. By signing below the applicant acknowledges that he/she has read and understands the information above

Miami, University of

237

Ho-Nee-Um Trail.  

ERIC Educational Resources Information Center

Appreciation and concern for the preservation of our natural resources by all citizens is the primary concern of this teacher's guide for use in the elementary grades. It employes the use of a filmstrip in conjunction with a local nature trail, to guide students in developing awareness - by looking closely, listening, touching, and smelling. Major

Irwin, Harriet; And Others

238

Age-related changes in auditory nerve-inner hair cell connections, hair cell numbers, auditory brain stem response and gap detection in UM-HET4 mice.  

PubMed

This study compared the timing of appearance of three components of age-related hearing loss that determine the pattern and severity of presbycusis: the functional and structural pathologies of sensory cells and neurons and changes in gap detection (GD), the latter as an indicator of auditory temporal processing. Using UM-HET4 mice, genetically heterogeneous mice derived from four inbred strains, we studied the integrity of inner and outer hair cells by position along the cochlear spiral, inner hair cell-auditory nerve connections, spiral ganglion neurons (SGN), and determined auditory thresholds, as well as pre-pulse and gap inhibition of the acoustic startle reflex (ASR). Comparisons were made between mice of 5-7, 22-24 and 27-29months of age. There was individual variability among mice in the onset and extent of age-related auditory pathology. At 22-24months of age a moderate to large loss of outer hair cells was restricted to the apical third of the cochlea and threshold shifts in the auditory brain stem response were minimal. There was also a large and significant loss of inner hair cell-auditory nerve connections and a significant reduction in GD. The expression of Ntf3 in the cochlea was significantly reduced. At 27-29months of age there was no further change in the mean number of synaptic connections per inner hair cell or in GD, but a moderate to large loss of outer hair cells was found across all cochlear turns as well as significantly increased ABR threshold shifts at 4, 12, 24 and 48kHz. A statistical analysis of correlations on an individual animal basis revealed that neither the hair cell loss nor the ABR threshold shifts correlated with loss of GD or with the loss of connections, consistent with independent pathological mechanisms. PMID:25665752

Altschuler, R A; Dolan, D F; Halsey, K; Kanicki, A; Deng, N; Martin, C; Eberle, J; Kohrman, D C; Miller, R A; Schacht, J

2015-04-30

239

Modelling future changes in climate, ozone-depleting substances and ozone precursor emissions using the whole-atmosphere UM-UKCA model  

NASA Astrophysics Data System (ADS)

Using the recently upgraded whole-atmosphere UM-UKCA chemistry-climate model, we investigate the atmospheric response to future changes in a) greenhouse gases under the RCP4.5 and 8.5 scenarios for climate change, b) ozone-depleting substances (ODS) and a recovery of the ozone layer and c) ozone precursor emissions and tropospheric oxidising capacity. In addition, we combine these scenarios in order to explore the interactions between individual perturbations. Within this framework, the coupled stratosphere-troposphere system and whole-atmosphere chemistry allows us to study the impact of changes in composition of the stratosphere on the troposphere and vice versa. We find that by the year 2100: 1) the stratosphere significantly impacts the troposphere via changes in stratosphere-troposphere exchange (STE) but the chemical changes induced in the troposphere do not impact the stratosphere, 2) perturbations are linearly additive with regard to the total ozone column and tropospheric odd oxygen budget, 3) while the Brewer-Dobson Circulation strengthens under climate change (with an increase in the DJF 70hPa tropical upwards mass flux of ~20% at RCP4.5 and exceeding 30% at RCP8.5), this strengthening is offset by ozone recovery (which on its own leads to a decrease in the mass flux of ~10%) and 4) tropospheric ozone decreases given mitigation of its precursor emissions (with a 10% decrease in ozone burden) but this can be offset by climate change at both RCP4.5 and 8.5 and stratospheric ozone recovery (increasing the burden by 6-13%).

Banerjee, Antara; Maycock, Amanda; Archibald, Alexander; Telford, Paul; Abraham, Luke; Braesicke, Peter; Pyle, John

2014-05-01

240

Tips To help ReDUCe YoUR soDiUM iNTAKe Read the nutrition facts label for sodium content and choose the product that is lower in  

E-print Network

Science and Human Nutrition, 3/09 What Sodium doeS in the Body · Helps maintain water balance · RegulatesTips To help ReDUCe YoUR soDiUM iNTAKe 1 2 3 4 5 Read the nutrition facts label for sodium content at the table. Sodium: The Facts By Beth H. Olson, Ph.D., MSU Extension Nutrition Specialist, Department of Food

241

Advancements in the Retrieval of CO2 from an Airborne IM-CW Lidar operating in 1.57-um Region  

NASA Astrophysics Data System (ADS)

Accurate understanding of carbon balance in the environment is critical to projections of the future evolution of the Earth's climate. Uncertainties in the modeling of carbon sources and sinks remain large due to the limited set of observations from the current network of in-situ and surface measurements. Global, spaceborne measurements of atmospheric CO2 can reduce these uncertainties. As a result, the NRC Decadal Survey (DS) of Earth Science and Applications from Space identified Active Sensing of CO2 Emissions over Nights, Days, and Seasons (ASCENDS) as an important mid-term (Tier II) mission. The active space remote measurement of the column CO2 mixing ratio (XCO2) that is called for by the NRC in the ASCENDS mission requires the simultaneous measurement of the CO2 number density column and the O2 number density column to derive the average XCO2 column. The NRC recommendation calls for XCO2 to be measured to a precision of less than 2 ppm and must be made without bias from aerosols, dust, or clouds. This paper discusses the latest flight test results from the Multi-Functional Fiber Laser Lidar (MFLL), a laser absorption spectrometer (LAS) system under developed by ITT Exelis under evaluation by NASA LaRC for the ASCENDS mission. The MFLL is a multi-frequency intensity-modulated continuous-wave (IM-CW) LAS operating near 1.57 um to obtain remote CO2 column measurements. During these tests, encoded modulation techniques for minimizing the impact of thin clouds on CO2 measurements were demonstrated and the MFLL remote CO2 column measurements were evaluated against airborne in situ CO2 profile measurements under a wide variety of surface and atmospheric conditions. This paper describes the modulation techniques employed and presents algorithms minimizing bias from thin clouds on CO2 retrievals. MFLL and in situ CO2 data comparisons are presented and observations of CO2 column enhancements in the Four Corner's power plant plumes and CO2 uptake over the cornfields in Nebraska and Iowa are discussed.

Harrison, F.; Browell, E.; Dobler, J.; Kooi, S.; McGregor, D.; Choi, Y.

2012-04-01

242

ECOLOGY, BEHAVIOR AND BIONOMICS Tritrophic Analysis of the Coffee (Coffea arabica) - Coffee Berry Borer (Hypothenemus hampei (Ferrari)) - Parasitoid System  

Microsoft Academic Search

RESUMO - Desenvolveu-se um modelo tritrfico de simulao para o cafeeiro (Coffea arabica var. mundo novo), a broca- do- caf (Hypothenemus hampei (Ferrari)) e trs de seus parasitides. O modelo contm a dinmica da planta estruturada por idade e massa e influenciado por fatores edficos e meteorolgicos. Dados extensivos de matria seca de plantas de cafeeiro foram coletados durante

ANDREW P. G UTIERREZ; AMADOR VILLACORTA; JOSE R. CURE; C. KEN ELLIS

1998-01-01

243

Uma Implementac~ao Concorrente de Redes Neurais PCA para Compress~ao de Imagens  

E-print Network

Uma Implementac~ao Concorrente de Redes Neurais PCA para Compress~ao de Imagens Willian Y. Honda1 dados. Considerando uma rede neural que aproxima os resultados da PCA classica, a principal contribuic~ao deste trabalho consiste em apresentar um modelo de implementac~ao concorrente para essa rede. Um estudo

Pereira, Marcone Corra

244

EVALUATION OF LOGISTIC PERFORMANCE OF WOOD HAULING USING PETRI NET IN A FOREST INDUSTRY OF MINAS GERAIS  

Microsoft Academic Search

RESUMO - Este trabalho teve por objetivo utilizar o modelo de avaliao do desempenho logstico de cadeias produtivas (ADELCAP) centrado nos tempos dos elementos do ciclo operacional do transporte de madeira, visando otimizar os recursos, garantir um fluxo contnuo de abastecimento e assegurar um volume adequado de entrada de madeira na fbrica. O ciclo operacional de transporte de madeira

Raiane Ribeiro Machado; Mrcio Lopes da Silva; Carlos Cardoso Machado; Helio Garcia Leite

2006-01-01

245

Un modelo explicativo de la conducta hacia la enfermedad mental  

Microsoft Academic Search

Objective. To evaluate a theoretical model designed to explain behaviors toward mental illness, considering some variables related to the construct. Material and Methods. A survey was conducted in 1996 on mental disorder beliefs, attitudes, and behavioral intentions. The sample population was stratified by socioeconomic status, age, and gender. Study subjects were 800 individuals from Mexico City's general population. A data

Sarah Garca-Slberman

2002-01-01

246

Predictores de la conducta antisocial juvenil: un modelo ecolgico  

Microsoft Academic Search

The aim of this research was to test an ecological model as explanation of juvenile delinquency. 204 Mexican students of junior and high school answered a questionnaire containing questions about family violence, antisocial behavior, child abuse, mother and father alcohol consumption, as well as some family, school, and neighborhood environmental characteristics. Observed variables constituted factors and indexes that represented the

Martha Fras-Armenta; Amelia Erndida Lpez-Escobar; Sylvia Guadalupe Daz-Mndez

2003-01-01

247

Modelos de estados y transicines: nuevas aplicaciones en contexto mundial  

E-print Network

podemos lograr--transformamos el uso (campo eólico!) #12;Un ejemplo: suroeste de EEUU y norte de MexicoReconstrucción histórico Experimentos de manejo GIS Monitoreo #12;35 43B 3 42 133A 8 5 30 136 54 72 58A 40 25 48A 52 73 29

248

La gestin ambiental en el modelo cultural del desarrollo sostenible  

Microsoft Academic Search

El desarrollo sostenible constituye un discurso internacional que busca una identidad universal de los pueblos, las etnias, las culturas regionales, las naciones, los bloques econmicos y los mundos. Dada la importancia de la problemtica ambiental en el pensamiento contemporneo, la relacin de cultura y medio ambiente puede ser abordado como un triple paradigma: histrico moral y esttico. Como paradigma histrico,

Sergio Ivn Carmona Maya

1998-01-01

249

Uma Proposta de Modelo para Objetos de Aprendizagem  

Microsoft Academic Search

Resumo. Algumas polticas pblicas tm impulsionado o desenvolvimento de material digital para uso como recurso no processo de ensino e aprendizagem, incentivando o surgimento de vrias equipes, cujos produtos desenvolvidos tendem a se concentrar em repositrios para que sejam acessveis ao pblicoalvo. Muitas vezes o entendim ento de quais elementos devem estar presentes num objeto varia entre as equipes, dificultando

Santos Rosa; Rogrio Avellar Cordeiro; Darcy Ribeiro

250

REPRESENTACIN DE DIFERENTES TIPOLOGAS DE DEPSITOS MEDIANTE EL MODELO EPANET  

Microsoft Academic Search

Modelling reservoirs becomes fundamental when approaching the study of any system of water supply. In this work it's studied the the representation of different kinds of reservoirs in the different computational models. Therefore, reservoir modelling in Epanet is described with detail. Later different types of reservoirs are analyzed, whose geometry or characterstics does not agree exactly with the defined in

Pedro L. Iglesias Rey; F. J. Martinez Solano; Vicente S. Fuertes Miquel; Rafael Prez Garca

251

Un modelo de competencia traductora: bases para el diseo curricular  

Microsoft Academic Search

In this paper, it is argued that the description of the fac- tors which make up translation competence is a useful tool for the training of translators, in that such descriptions allow the outlining of both overall and specific objectives and learning outcomes for training programmes. After a brief survey of the main models exis- ting in translation literature to

Dorothy A. Kelly

252

El enfoque del espacio de estados en modelos de crecimiento  

E-print Network

desarrollo de un rodal a trav´es de numerosas decisiones y tratamientos silv´icolas. La densidad de rodal puede ser controlada eligiendo la densidad de plantaci´on, y con raleos. La densidad afecta la producci

García, Oscar

253

Un metodo adaptativo para el modelo Bidominio en electrocardiologia  

Microsoft Academic Search

This paper presents a finite-volume method, together with fully adaptive multi-resolution scheme to obtain spatial adaptation, and a Runge-Kutta-Fehlberg scheme with a local time-varying step to obtain temporal adaptation, to solve numerically the known \\

Mostafa Bendahmane; Raimund Brger; Ricardo Ruiz Baier

2008-01-01

254

Un Modelo Cinematico para la Interpretacion Tridimensional de Proyecciones Poliedricas.  

E-print Network

Federico Thomas Institut de Robotica i Informatica Industrial Gran Capita 2-4 08034 Barcelona e-mail: llros realizacion espacial del dibujo. En este trabajo abordamos un problema clasico de Robotica e Inteligencia Arti

Ros, Llus

255

Mtodo numrico aplicado a los modelos analgicos cuantificables (para polmeros)  

Microsoft Academic Search

La dynamique molculaire des polymres peut s'expliquer en utilisant des systmes construits avec des ressorts et des pistons. L'un des modles les plus abordables est celiu de Vangheluwe et ses constantes paramtriques sont dtermines par les mthodes suivantes: mthode graphique, mthode itrative Marquardt, mthode de l'hyperplan. De mme, un autre modle important est celiu de Zurek qui dtermine ses constantes

Ana Mara Islas Cortes; Gabriel Guilln Buenda; Manuel Olvera; Laura E. Mercado

1970-01-01

256

Anlisis del Proceso Software Basado en Modelos de Produccin Industrial  

Microsoft Academic Search

La modelizacin del Proceso Software constituye un marco de referencia para la organizacin de las actividades que involucran todas las etapas del desarrollo, tendente a la resolucin de problemas que el propio desarrollo de software plantea y genera a medida que evoluciona. La modelizacin del proceso se hace mas compleja a medida que el desarrollo tecnolgico, metodolgico y, fundamentalmente la

Alicia Mon

257

Verificando un modelo predictivo de distribucin para anfibios  

Microsoft Academic Search

Over the past hundred years, the human population has increased from one to six billion human beings. As a result, the pressure to squeeze this little planet of ours for more food, water, and fuel has increased. Therefore, managing the limited natural resources of the Earth has emerged as perhaps the most crucial problem faced by humanity. Fortunately, technologies are

Miguel Fernandez; Healy Hamilton; Steffen Reichle

258

Histerese no comrcio internacional brasileiro: uma anlise por modelos ARFIMA  

Microsoft Academic Search

Aps a abertura comercial em 1998, grandes mudanas ocorreram no comrcio exterior nacional devido sucessivos choques cambiais aos quais a economia foi exposta. A literatura de referncia sugere que grandes choques na taxa de cmbio induzem mudanas persistentes na relao entre a taxa de cmbio e o comrcio. Este fenmeno conhecido por histerese. Desta forma, o objetivo deste trabalho

Sinezio Fernandes Maia; Roberto Wagner Jubert; Marcia Cristina Paixao

2008-01-01

259

Un modelo cognitivo de las interacciones matn-vctima  

Microsoft Academic Search

Title: A cognitive model of bully-victim interactions Abstract: Bullying is a subtype of aggression that in- volves systematic verbal, psychological or physical har- assment of a weaker child (the whipping boy) by a stronger one (the bully). This behavior is elicited by subjects with the proposal of stablishing a dominance relation wich provides them social or individual re- wards. This

Javier Garca Orza; Taller de Psicologa

1997-01-01

260

Razes ps-mitolgicas da Astronomia Clssica  

NASA Astrophysics Data System (ADS)

Apresentamos como a inveno de um modelo astronmico e cosmolgico fundado em causas naturais foi um processo gestado num ambiente cultural especfico, o do advento do pensamento ps-mitolgico, que tem como sua raiz mais funda a trajetria particular da Grcia Antiga, com nfase na resoluo de uma grave crise social e a evoluo do mundo clssico para o contexto espiritual de um imprio universal.

di Bartolo, L.; Villas da Rocha, J. F.

2004-02-01

261

Bethke, Donna From: UM SOM PTRS  

E-print Network

,050 for the Alzheimer's Association! Because of your generous donations, she placed third for the individual to finding a cure! Announcements PTRS Annual Phonathon SAVE-THE-DATE Calling all PTRS Students and Faculty

Weber, David J.

262

Bethke, Donna From: UM SOM PTRS  

E-print Network

: A Moving Story" Gammon M. Earhart, PT, PhD, Professor Program in Physical Therapy, Department of Anatomy and their phone number is 443-869-4515. Kickstarter Campaign Alumnus Gene Shirokobrod, DPT 2011 (pictured below

Weber, David J.

263

Bethke, Donna From: UM SOM PTRS  

E-print Network

in the current week's issue. Thanks for sharing!!!!! Stay Connected University of Maryland School of Medicine, Department of Physical Therapy and Rehabilitation Science, 100 Penn Street, Allied Health Building, Baltimore Department on May 20th for an informal dialogue on various telehealth topics within and connected to physical

Weber, David J.

264

Bethke, Donna From: UM SOM PTRS  

E-print Network

in the Department of Physical Therapy and Rehabilitation Science. Doug will be honored at Alumni Day on Wednesday in the current week's issue. Thanks for sharing!!!!! #12;7 Stay Connected University of Maryland School of Medicine, Department of Physical Therapy and Rehabilitation Science, 100 Penn Street, Allied Health

Weber, David J.

265

Bethke, Donna From: UM SOM PTRS  

E-print Network

in the current week's issue. Thanks for sharing!!!!! Stay Connected University of Maryland School of Medicine, Department of Physical Therapy and Rehabilitation Science, 100 Penn Street, Allied Health Building, Baltimore of the physical teaching space in Room 146 & 152. Thank to those involved in the planning and execution

Weber, David J.

266

Bethke, Donna From: UM SOM PTRS  

E-print Network

in the current week's issue. Thanks for sharing!!!!! Stay Connected University of Maryland School of Medicine, Department of Physical Therapy and Rehabilitation Science, 100 Penn Street, Allied Health Building, Baltimore and Tonas Kalil, PT, DPT, MGA (current adjunct faculty and faculty, respectively), just completed its 26th

Weber, David J.

267

Bethke, Donna From: UM SOM PTRS  

E-print Network

. Marchese brings extensive experience, expertise and scholarship in pediatric physical therapy and we in the current week's issue. Thanks for sharing!!!!! Stay Connected University of Maryland School of Medicine, Department of Physical Therapy and Rehabilitation Science, 100 Penn Street, Allied Health Building, Baltimore

Weber, David J.

268

Bethke, Donna From: UM SOM PTRS  

E-print Network

in the current week's issue. Thanks for sharing!!!!! #12;7 Stay Connected University of Maryland School of Medicine, Department of Physical Therapy and Rehabilitation Science, 100 Penn Street, Allied Health and Mary Department News Physical Rehabilitation Science Graduate Program We are pleased to welcome U

Weber, David J.

269

Bethke, Donna From: UM SOM PTRS  

E-print Network

for the Department of Physical Therapy and Rehabilitation Science, to UMBF, Inc./PTRS 2017 Welcome, then mail to in the current week's issue. Thanks for sharing!!!!! Stay Connected University of Maryland School of Medicine, Department of Physical Therapy and Rehabilitation Science, 100 Penn Street, Allied Health Building, Baltimore

Weber, David J.

270

Bethke, Donna From: UM SOM PTRS  

E-print Network

in the current week's issue. Thanks for sharing!!!!! Stay Connected University of Maryland School of Medicine, Department of Physical Therapy and Rehabilitation Science, 100 Penn Street, Allied Health Building, Baltimore

Weber, David J.

271

Bethke, Donna From: UM SOM PTRS  

E-print Network

in the current week's issue. Thanks for sharing!!!!! Stay Connected University of Maryland School of Medicine, Department of Physical Therapy and Rehabilitation Science, 100 Penn Street, Allied Health Building, Baltimore is currently collecting data in the community of Blantyre and will be sending weekly updates of their progress

Weber, David J.

272

Bethke, Donna From: UM SOM PTRS  

E-print Network

, 2013 7:30 AM To: Bethke, Donna Subject: The Chairs' Chatter - 10.2.13 October 2, 2013 Physical Therapy Therapy (PT) Month! This is a time to celebrate our pride in being part of the physical therapy field Seminar will feature a presentation by PhD student Wan-Wen Liao. The title of her talk will be: "Strength

Weber, David J.

273

Bethke, Donna From: UM SOM PTRS  

E-print Network

Therapy and Rehabilitation Science The Chairs' Chatter #12;2 Greetings! We hope many of our DPT students Science Research Seminar This week's Rehabilitation Science Research Seminar will feature a talk by Dr Connected University of Maryland School of Medicine, Department of Physical Therapy and Rehabilitation

Weber, David J.

274

1.3-um Raman fiber amplifier  

Microsoft Academic Search

The results of experimental research and numerical modeling of the 1.3 micrometers Raman fiber amplifier based on the high Gao2 doped fiber are presented. The Raman amplifier was pumped by the P2O5-doped fiber Raman laser. The measurements of gain and noise figure in broad range of experimental conditions are fulfilled. The amplifier gain coefficient was measured to be 42 dB\\/W.

Eugeni M. Dianov; I. A. Bufetov; Mikhail M. Bubnov; M. V. Grekov; Sergei A. Vasiliev; Oleg I. Medvedkov; A. V. Shubin; Alexei N. Guryanov; Vladimir F. Khopin; M. V. Yashkov; Evelyn M. DeLiso; D. L. Butler

2000-01-01

275

ARAN: A DESCOBERTA DE UM DRAMATURGO  

Microsoft Academic Search

In 1896 J. M. Synge was living in Paris trying to be a literary critic in French literature. Knowing the Gaelic language and advised by W. B. Yeats, Synge, two years later, gives up his career as a literary critic and goes to the Aran Islands. In this region isolated from the European cultural universe he knows a reality whose

Geraldo Ferreira de Lima

276

UM Space REU Final Report Eric Haengel  

E-print Network

Appendix B: RF tone generation and ADC12 code. 8 7 Appendix C: Data collection via arduino. 15 8 Appendix D430F5137 development kit, which included two boards, two antennae, two battery packs, and some pin headers. The cost of this develoment kit was $150, and the programming cable (the MSP-FET430UIF) cost

De Roo, Roger

277

Bethke, Donna From: UM SOM PTRS  

E-print Network

and interprofessional education (IPE) to determine what IPE concepts should be part of a well-designed global health, certifications, and special interests within the PT profession including neurology, orthopedics, pediatrics curriculum. The focus of the roundtable was to look at the intersection of global health education

Weber, David J.

278

Die Verdienste Leonhard Eulers um den Potentialbegriff  

Microsoft Academic Search

Zusammenfassung Im Anschlu an die Arbeit Edm. Hoppes ber Priorittsfragen (22. Band, 6. Heft dieser Zeitschrift) wird die Einfhrung des Potentialbegriffes behandelt und der Priorittsnachweis erbracht, da weder Lagrange noch Laplace, sondern Euler der eigentliche Begrnder der Potentialtheorie ist.

Rudolf Brenneke

1924-01-01

279

Bethke, Donna From: UM SOM PTRS  

E-print Network

to the participating DPT students on the Open House panel: Tyiesha Brown, Chelsea David, Katie Duerling, John Grossman III Groundbreaking University of Maryland School of Medicine Dean E. Albert Reece, M.D., Ph.D., M signed jersey, a Smyth bracelet, 2 Ravens tickets, and much more) going on throughout the night. If you

Weber, David J.

280

Bethke, Donna From: UM SOM PTRS  

E-print Network

, Campus Center Room 351 Odessa Addison, PhD, Post-Doc Fellow -"Importantce of Hip Intramuscular Fat the use of dance and investigating neural mechanisms in people with Parkinson's disease. Additional Presentations Include: "The Importance of Intramuscular Fat in Older Adult Function" Odessa Addison, Ph

Weber, David J.

281

Bethke, Donna From: UM SOM PTRS  

E-print Network

mechanisms in people with Parkinson's disease. Additional Presentations Include: "The Importance of Intramuscular Fat in Older Adult Function" Odessa Addison, DPT, PhD Postdoctoral Fellow "The effect of self-triggered sensory cueing on sit-to-stand movement in individuals with Parkinson's disease" Cheng-Chieh Lin, PT, MPT

Weber, David J.

282

Sistema de Balizamento de um Veculo Autnomo  

Microsoft Academic Search

The goal of this paper is to present the project and development of a mobile robot. It was develop an autonomous system to do the self parking correctly and in a safe mode. The vehicle, before start the parking procedures, calculates if the target spot is enough. For validation, the mechanic structure of the vehicle was done with LEGO pieces,

Hariel Petry Pitz; Jos F. Velozo

283

UmSistema Sistema AnimaoBaseado  

E-print Network

. #12; lMovies and television -- Terminator 2, Titanic, StarWars and others. lMedicine -- study to correctly represent the mainMoCap abstractions and entities. l Used paradigm: digital video editing + UNIX l Rendering: OpenGL l Standard GUI facilities: XForms l Realtime animation preview l Tested

284

Bethke, Donna From: UM SOM PTRS  

E-print Network

degree, and is about to start work on his PhD! In each location today, we entertained swarms of bright-eyed the team via their Facebook page at: Malawi IPE Team Adjunct Faculty in the News #12;3 Dr. Gene Shirokobrod, Department of Physical Therapy and Rehabilitation Science, 100 Penn Street, Allied Health Building, Baltimore

Weber, David J.

285

Disfluencies Signal Theee, Um, New Information  

E-print Network

. Tanenhaus1 Speakers are often disfluent, for example, saying "theee uh candle" instead of "the candle." Pro competitors (e.g., camel, candle), and followed spoken instructions to move the objects. The first instruction comprehenders interpret disfluent references like "theee, uh, candle"? The standard approach to reference

DeAngelis, Gregory

286

Bethke, Donna From: UM SOM PTRS  

E-print Network

, Maryland. Abstract submission site now open! Proposal submission deadline is July 14, 2014. Abstract International Society for Posture & Gait Research World Congress in Vancouver, British Columbia. The meeting a startling loud acoustic stimulus can be modified by arm training in standing in persons post-stroke" Vicki L

Weber, David J.

287

Bethke, Donna From: UM SOM PTRS  

E-print Network

Balance Tests Among Individuals with High and Low Risk of Falling" UMCP Student Taylor Keenan "EffectsD The Effectiveness of Reactive versus Volitional Balance Training to Prevent Falls: Pilot Study Preliminary ResultsFall in Standing Humans?" Elizabeth J. Woytowicz, BS "Cognitive Brain Function and Balance Impairments Following

Weber, David J.

288

Bethke, Donna From: UM SOM PTRS  

E-print Network

and Go Test, The 30-Second Chair Stand Test, The 4-Stage Balance Test, and the Activities participated in the Balance Screenings. Under Dr. Linda Horn's leadership, students (Jennifer White, Andrea Abdul-Haqq, Faunice Jackson, Alex Bevacqua, and Karen Fletcher) performed four tests: The Timed Up

Weber, David J.

289

Bethke, Donna From: UM SOM PTRS  

E-print Network

are located on the shared "V" drive in the Research folder. Please welcome Alex and Brian to PTRS! Alexandra (Alex) Cirillo is our newest Clinical Research Assistant. Alex completed her Masters of Public Health, where he earned his M.S. degree in occupational therapy this past spring. Assistant Professor, Kelly

Weber, David J.

290

We asked CalTeCh alUms To Tell Us hoW CalTeCh has Changed Their World--or thE World. here's WhaT TheY had To saY  

E-print Network

EndnoTES We asked CalTeCh alUms To Tell Us hoW CalTeCh has Changed Their World--or thE World. here's WhaT TheY had To saY: Caltech helped create our current understanding of how the brain operates with one another and the university, the second-order effect is a powerful network that can itself be world-changing

291

Estatstica de lentes gravitacionais e o gs de chaplygin generalizado  

NASA Astrophysics Data System (ADS)

A estatstica de lentes gravitacionais constitui uma poderosa ferramenta utilizada na obteno de vnculos sobre parmetros cosmolgicos, principalmente sobre modelos com uma constante cosmolgica. Embora de forma s vezes controversa, antes de 1998, a anlise tradicional mostrava que modelos com o parmetro de densidade da matria da ordem da unidade so preferidos. Esse resultado comeou a ser questionado, alguns anos atrs, com as indicaes, advindas da anlise de supernovas com alto valor de desvio para o vermelho, de que nosso Universo est acelerando. Atualmente h enorme interesse em saber qual a natureza da componente responsvel pela acelerao csmica. Energia escura a denominao usual dessa componente e sua caracterstica principal possuir presso negativa. Nos modelos cosmolgicos tradicionais, alm da energia escura, considera-se tambm uma outra componente de origem desconhecida. Ela denominada matria escura e possui presso nula. Mais recentemente modelos unificadores em que energia escura e matria escura so manifestaes distintas de um mesmo fluido (altas densidades matria escura, baixas densidades energia escura) foram sugeridos. Um desses modelos conhecido como Gs de Chaplygin Generalizado que o modelo que investigaremos. Em nosso trabalho apresentamos vnculos sobre parmetros desse modelo usando a estatstica de lentes gravitacionais. Usamos observaes de quasares na faixa do visvel e consideramos extino em nosso estudo. Anlises semelhantes anteriores com esse tipo de objetos e que no consideram extino so inconsistentes. Comparao dos vnculos obtidos atravs de lentes gravitacionais com outros advindos de outros testes ser tambm apresentada.

Oliveira, A. L. S.

2003-08-01

292

Estudo de no gaussianidade nas anisotropias da RCF medidas Wmap  

NASA Astrophysics Data System (ADS)

A investigao do campo de flutuaes da Radiao Csmica de Fundo (RCF) pode oferecer um importante teste para os modelos cosmolgicos que descrevem a origem e a evoluo das flutuaes primordiais. De um lado, apresenta-se o modelo inflacionrio que prev um espectro de flutuaes adiabticas distribudas segundo uma gaussiana e, de outro, os modelos de defeitos topolgicos (dentre outros) que descrevem um mecanismo para a gerao de flutuaes de isocurvatura que obedecem a uma distribuio no gaussiana. Este trabalho tem como objetivo caracterizar traos do modelo no gaussiano de campo misto (entre flutuaes adiabticas e de isocurvatura) nos mapas do Wilkinson Microwave Anisotropy Probe (WMAP). Simulaes das anisotropias da RCF no contexto de mistura indicam traos marcantes na distribuio das flutuaes de temperatura, mesmo quando consideradas pequenas contribuies do campo de isocurvatura (da ordem de 0.001). O efeito da mistura entre os campos resulta na transferncia de potncia de flutuaes em escalas angulares intermedirias para flutuaes em pequenas escalas angulares. Este efeito pode ser caracterizado pela relao entre as amplitudes dos primeiros picos acsticos no espectro de potncia da RCF. Neste trabalho, investigamos a contribuio do campo de isocurvatura, no contexto de mistura, sobre as observaes recentes da RCF realizadas pelo WMAP. As previses do modelo de campo misto, uma vez confrontadas com as observaes em pequenas escalas angulares, podem ajudar a revelar a natureza das flutuaes primordiais.

Andrade, A. P. A.; Wuensche, C. A.; Ribeiro, A. L. B.

2003-08-01

293

DESENVOLVIMENTO DE UM CONTROLE MULTIVARIVEL DE POSIO APLICADO A UM PROJETO DE MO ARTIFICIAL ROBTICA  

Microsoft Academic Search

In this work the position control of the five fingers artificial robotic hand BRAHMA (Brazilian Anthropomorphic Hand) is investigated. To simulate the behavior of such a complex system, a dynamic linear model and a dynamic non-linear model both with 22 degrees of freedom were developed. The multivariable control strategy was implemented using a state space representation through state feedback of

ANDR R. L. ALBUQUERQUE; GLAUCO A. P. CAURIN; MARCIO A. F. MONTEZUMA; ANDR L. A. MIRANDOLA

294

Migrac ao de um kernel de tempo real para um processador digital de sinais  

Microsoft Academic Search

Considering the complexity growth on signal processing applications and the performance of newest generation digital signal processors the use of small kernels for the signal processing domain becomes common. The use of an operating system facilitates the organization and management of application tasks. This work describes the porting process of a real time kernel to a DSP. The ported kernel

Augusto M. Nacif; Luiz Fernando; E. Moreira; Iabrudi Tavares; Monteiro da Mata; Claudionor Nunes Coelho Jr; Luiz Filipe Vieira; Marcos Augusto Vieira

295

A construo de um instrumento de avaliao discente de um programa de ps-graduao  

Microsoft Academic Search

This paper presents the process of developing an instrument for students' assessment of a Graduate Program. That process encompassed a series of steps involving a sample of 14 faculty members of a Psychology Graduate Program as well as a pilot sample of 52 graduate students. The revised instrument was tested on a group of 62 students (46 masters and 17

Lilian Milnitsky Stein; Denise Falcke; Ktia Bones Rocha; Luciana Moreira de vila; Mariana Porto; Ruwer de Azambuja

2005-01-01

296

25 a 29 de abril de 2015 Joo Pessoa PB  

E-print Network

analisados para verificar se alguma anormalidade existe, sobrepor ao objeto a ser monitorado (como mapas de risco ambientais) e a outras bases geogrficas adicionais. A integrao desses dados realizada por usurios implementem seus prprios modelos. Um alerta criado para cada situao de risco detectada e

297

USURIO OU CIDADO? REFLEXES LIVRES SOBRE A EXPERINCIA DE GESTO DE RECURSOS HDRICOS NO BRASIL  

Microsoft Academic Search

Resumo - O grande desafio neste incio de sculo, para uma gesto efetiva e sustentvel de recursos hdricos, considerar o contexto social e poltico que condiciona as aes do Estado e as possibilidades de sucesso de qualquer poltica pblica. O pas tem perdido tempo e dinheiro discutindo como se chegar a um modelo ideal de gesto de guas, sem

Antnio Augusto; Rossotto Ioris

298

As Cincias A Revista Fruns Dossiers Podcast Classificados Contactos Guia do Ensino Superior Guia Prtico Cincia Hoje em instalao  

E-print Network

páginas. Loja Ciência Hoje Abre Brevemente Os cientistas e as suas fotos A Medicina em Portugal Portuguese e Tecnologia da Universidade de Coimbra (FCTUC) desenvolveu um modelo matemático que permite reduzir científica americana de medicina, a Annals of Emergency Medicine. Segundo nota da FCTUC, ohospital teve

Soares, João Luís Cardoso

299

Solar Physics Topics in High School: Analysis of a Course with Practical Activities at Dietrich Schiel Observatory. (Spanish Title: Temas de Fsica Solar Para Estudiantes de Escuelas Secundarias: un Anlisis de un Curso con Enfoque Prctico en el Observatorio Dietrich Schiel.) Tpicos de Fsica Solar no Ensino Mdio: Anlise de um Curso com Atividades Prticas no Observatrio Dietrich Schiel  

NASA Astrophysics Data System (ADS)

This work analyses results obtained in a solar physics course for high school students promoted at the Dietrich Schiel Observatory of the University of So Paulo (USP). The course was elaborated by the authors with the intention of investigating student's concepts about the Sun, teaching topics of modern physics related to the Sun and providing students with knowledge about our star as well. The methodology of data gathering consisted of audio and video records of classes and of semi-structured interviews, and analysis of answers to written questionnaires. The results showed that most high school students conceived the Sun as made of fire, while sunspots were thought to be holes in the Sun. Even though some students did know that a spectrum is formed using a prism or diffraction grating, most of them ignored the nature of the observed spectral lines. Through the course, this topic was developed by means of a practical approach with solar and lamp spectra observations. The results obtained in the course point to the importance of science centers as partners in formal education. In this specific case, the Solar Room at the Dietrich Schiel Observatory is as a favorable environment for teaching modern physics in high school. Este artculo analiza los resultados obtenidos en un curso sobre la fsica solar, auspiciado por el Observatorio Dietrich Schiel de la USP para estudiantes de las escuelas secundarias. El curso fue diseado por los autores con la intencin de investigar las concepciones sobre el sol, ensear temas relacionados con la fsica moderna del Sol y conocimientos generales sobre el astro rey. La metodologa utilizada para la recoleccin de datos consisti en grabar, en audio y video, las clases, las entrevistas semi-estructuradas y las respuestas a los cuestionarios escritos. Los resultados mostraron que la mayora de los participantes conciben el Sol como constituido por fuego y las manchas solares en la superficie solar como agujeros. Aunque algunos estudiantes saban que un espectro puede estar formado por un prisma o red de difraccin, la mayor parte de ellos desconoca la naturaleza de las lneas espectrales. A lo largo del curso, esta cuestin fue trabajada con un enfoque prctico mediante la observacin del espectro solar y de las lmparas durante clases expositivas/dialogadas. Los resultados obtenidos en el curso mustran la importancia de los centros de ciencia como un apoyo en la educacin formal. En este caso en particular, la Sala Solar del Observatorio Dietrich Schiel se destaca como un entorno favorable para la enseanza de la fsica moderna en la escuela secundaria. Este trabalho analisa resultados obtidos em um curso sobre fsica solar para alunos do ensino mdio promovido pelo Observatrio Dietrich Schiel da USP. O curso foi elaborado pelos autores com a inteno de investigar concepes sobre o Sol, ensinar tpicos de fsica moderna relacionados ao Sol e conhecimentos gerais sobre o astro rei. A metodologia de coleta de dados consistiu em gravao em udio e vdeo das aulas e das entrevistas semi-estruturadas, e respostas a questionrios escritos. Os resultados mostraram que a maioria dos participantes concebeu o Sol como constitudo por fogo e as manchas solares como buracos na superfcie solar. Embora alguns alunos soubessem que um espectro pode ser formado por um prisma ou rede de difrao, a maior parte deles desconhecia a natureza das linhas espectrais. Ao longo do curso, este tema foi trabalhado com uma abordagem prtica com observao do espectro solar e de lmpadas e em aulas expositivo-dialogadas. Os resultados obtidos no curso apontam para a importncia dos centros de cincias como parceiros da educao formal. Neste caso especfico, a Sala Solar do Observatrio Dietrich Schiel um ambiente propcio para o ensino de fsica moderna no ensino mdio.

Calbo Aroca, Silvia; Donizete Colombo, Pedro, Jr.; Celestino Silva, Cibelle

2012-12-01

300

Modelos de anlisis para la prevencin de lesiones en el deporte. Estudio epidemiolgico de lesiones: el modelo Union of European Football Associations en el ftbol  

Microsoft Academic Search

The world of sport and particularly at a highly competetive level, involves a substantial risk of injury due to the high level of physical and mental demands. The multifactorial origin of injuries makes it very difficult to identify the risk factors and prevention strategy programs. Since the publication in 1992 of sequential model for injury prevention by W. Mechelen, different

Francesc Cos; Miquel ngel Cos; Lorenzo Buenaventura; Ricard Pruna; Jan Ekstrand

2010-01-01

301

Uma forma bidimensional que maximiza a resistncia aerodinmica newtoniana  

E-print Network

(English) In a previous work [Nonlinearity, 20:2271-2287, 2007; arXiv:math/0703895] it is investigated, by means of computational simulations, shapes of nonconvex bodies that maximize resistance to its motion on a rarefied medium, considering that bodies are moving forward and at the same time slowly rotating. Here the previous results are improved: we obtain a two-dimensional geometric shape that confers to the body a resistance very close to the supremum value (R=1.4965novas investiga\\c{c}\\~oes que culminam num resultado que representa um grande avan\\c{c}o qualitativo relativamente aos previamente alcan\\c{c}ados. Esse resultado, que agora se apresenta, consiste numa forma bidimensional que confere ao corpo uma resist\\^encia muito pr\\'oxima do seu limite te\\'orico.

Paulo D. F. Gouveia; Alexander Plakhov; Delfim F. M. Torres

2007-09-21

302

Comparative research on medicine application with 0.53-um, 1.06-um, and 1.32-um Nd:YAG lasers  

NASA Astrophysics Data System (ADS)

Because of its high power and excellent optical features, laser has almost been applied to everywhere of medical research and clinic. Over the past several years, laser medical has achieved a rapid progress, and laser medical instruments has developed promptly, each new wavelength can be successfully applied in diagnostic and treatment of diseases. Among the medical lasers, Nd:YAG solid-state laser systems have proven useful in surgical use operate, such as neurosurgery, gastroenterology, cardioangiology, urology, gynecology, dermatology and ENT. As with other solid-state lasers, the Nd:YAG laser can be made to emit various wavelengths by means of suitable resonator configurations and some newest solid-state laser technology, pumped by the Krypton lamp, the Nd:YAG laser at room temperature exhibits transition at 1.06 micrometer Nd:YAG, using nonlinear crystal and Q-switch to double its frequency can attain 0.53 micrometer green beam. In our laser systems, the efficiency at 1.06 micrometer is more than 3 percent, an efficiency of 0.5 percent at 1.32 micrometer and 0.53 micrometer can be attained. For a power of 100w at 1.06 micrometer, 15w at 1.32 micrometer and 0.53 micrometer can therefore be produced. All of three kinds Nd:YAG laser hold these characteristics: high output power; optical fiber transition that can be cooperated with endoscope. The paper mainly discusses laser operating characteristics and clinic applications of three kinds wavelengths at 0.53 micrometer 1.06 micrometer and 1.32 micrometer Nd:YAG laser systems.

Li, Yahua; Li, Zhenjia; Zhu, Changhong; Huang, Yizhong

1996-09-01

303

Populaes estelares do bojo galctico  

NASA Astrophysics Data System (ADS)

Os estudos mais recentes do bojo galctico tm enfocado essencialmente as abundncias qumicas de elementos pesados, como o ferro, obtidos a partir das estrelas nas regies centrais da galxia. Elementos leves, como hlio, nitrognio, oxignio e argnio ainda so pouco estudados nestas regies, devido difcil determinao de suas abundncias a partir de estrelas. Nestas condies as nebulosas planetrias desempenham um importante papel, pois permitem a determinao de abundncias destes elementos usando tcnicas de espectroscopia nebular. Neste trabalho, reportamos a anlise das abundncias qumicas de uma nova amostra de nebulosas planetrias do bojo, bem como os resultados preliminares de um cdigo numrico destinado a modelar a evoluo qumica desta regio. Usamos como vnculos observacionais os resultados obtidos das nebulosas planetrias, bem como de abundncias estelares da regio do bojo, obtidas da literatura. A partir deste modelo da evoluo qumica e dos vnculos observacionais foi possvel fazer um diagnstico mais preciso das populaes que constituem o bojo galctico. O estudo destas populaes que compem a regio central de nossa galxia de extrema importncia para o maior entendimento da evoluo qumica e dinmica da galxia como um todo. Por isto, verificamos a importncia dos modelos de formao simples e mista utilizados para explicar caractersticas da populao da regio central da galxia. Algumas destas caractersticas so: uma grande disperso nos valores das abundncias qumicas e um grande espalhamento nas correlaes entre as abundcias de nitrognio e oxignio. Estas peculiaridades so dificilmente reproduzidas por modelos de formao simples, e portanto so importantes indcios da validade dos modelos de formao mista, tais como um rpido colapso do bojo seguido de uma evoluo secular. (FAPESP, CNPq)

Escudero, A. V.; Costa, R. D. D.; Maciel, W. J.

2003-08-01

304

Determinao do extremo de baixa luminosidade da funo de luminosidade atravs de simulaes de Monte Carlo  

NASA Astrophysics Data System (ADS)

Neste trabalho apresentamos os principais resultados do estudo da populao de galxias ans de baixo brilho superficial dos grupos compactos HCG44 e HCG68. A inclinao do extremo de baixa luminosidade a da funo de luminosidade desses grupos foi estimado atravs de simulaes de Monte Carlo. O mtodo consistiu em simular galxias ans de baixo brilho superficial em imagens reais seguindo uma distribuio de magnitudes dada uma funo de Schechter. Foram testados vrios modelos com diferentes valores para os parmetros M* e a da funo de Schechter, e para cada um dos modelos foi repetido o mesmo processo de recuperao, seleo e anlise usados com as galxias ans dos grupos. Os resultados de cada modelo foram ento comparados com o observado nos grupos. Nossos resultados indicam que a distribuio de magnitudes (para magnitudes absolutas at MR»-12) observadas nos grupos so compatveis com uma funo de luminosidade de Schechter dada por um M* = -16 e um a entre -1.0 e -1.4, e portanto de acordo com a tendncia observada de uma inclinao do extremo de baixa luminosidade da funo de luminosidade de grupos mais plana (~1.2, Trentham & Tully 2002, MNRAS, 335, 712) que esperado pelo modelo hierrquico de formao de estruturas CDM (Cold Dark Matter - Matria Escura Fria).

Campos, P. E.; Mendes de Oliveira, C.

2003-08-01

305

UM-Dearborn Conference and Projects Highlight Alternative Energy Progress  

E-print Network

the university of michigan-dearborn Engineer dearborn Energy for the Future #12;cecs, defense sector team up for Job training 1 new Program and Project management graduate degree 1 the future is now: energy industries (e.g., engi- neering, information technology, military, government, healthcare, energy

Lu, Yi

306

UM-AR-GPS-ROVER AUGMENTED REALITY PLATFORM VISUALIZATION OF  

E-print Network

.1.3. Comparison 19 2.2. Tracking System 20 2.3. Mobile Computing Power 23 3. Augmented Reality Applications 23 information regarding the new advances in construction modeling and simulation, computer graphics, programming during working on various fields relative to GPS, GIS, and positioning. #12;6 TABLE OF CONTENTS CHAPTER

Kamat, Vineet R.

307

ELEKTRA: Um Chatterbot para Uso em Ambiente Educacional  

Microsoft Academic Search

**** Resumo. A E ducao Distncia vem despertando muito interesse de pesquisadores de diversas reas. Por isso, tambm vem sendo muito a bordada em congressos, workshops e seminrios. Muito se discute sobre a unio entre tecnologia e educao visando complementar a formao de estudantes. Com a pesquisa em Inteligncia Artificial, surgiram os chatterbots. Chatterbots so programas destinados a demonstrar

Michelle Denise Leonhardt; Daiane Dorneles de Castro; Liane Margarida; Rockenbach Tarouco

2003-01-01

308

Motivando Alunos em Circuitos Digitais: um Estudo de Caso  

Microsoft Academic Search

This paper describes some ideas developed over the years when teaching Digital Circuits in the Computer and Mecathronics Engineering courses at UCDB. We show experiments and tools used, but focusing more in the practical aspects. This ended up motivating the students in learning how to use lab equipments and in designing, assembling and debugging digital circuits. These techniques have been

Mauro Conti Pereira; Priscila da Silva Martins; Edson Antnio Batista; Alexandre Csar; Rodrigues da Silva; Fabrizio Leonardi

309

Kranke, Strme, Strahlenfelder Medizin und Elektrizitt um 1900  

Microsoft Academic Search

\\u000a Die Beziehungsgeschichte zwischen ueren Krften, wundersamen Fluiden oder magnetischen Feldern und der Medizin ist alt.\\u000a Bereits lange vor 1900 hatten beide eine durchaus innige Verbindung konstituiert, die gleichwohl nicht immer frei von Wunderglauben,\\u000a Scharlatanerie und Betrug war. Stellvertretend hierfr mag die Geschichte des Mesmerismus gelten, der zunchst im franzsischen\\u000a Ancien rgime, aber bald auch im revolutionren Frankreich und schlielich in

Wolfgang U. Eckart

310

Socializao parental e valores: um estudo com adolescentes  

Microsoft Academic Search

Abstract This study investigates the relations between,the perception of parental practices of socialization and,the teenagers values. Two thousand and four (2.004) teenagers of both sexes, from public and private schools aged between,10 and 18 were contacted. Two questionnaires were used: the Teenage Parental Socialization Scale and the Questionnaire of Psychosocial Values. The results reveal that the teenagers perceptions of parental

Raquel Moraesa; Cleonice Camino; Josel B. da Costa; Leoncio Camino; Luciane Cruz

2007-01-01

311

Um Olhar sobre "Beleza Americana" (A Look at "American Beauty").  

ERIC Educational Resources Information Center

Discusses the film "American Beauty" in light of a reading of Karl Marx. Finds that the film shows the circularity which marks bourgeois society, even though the rhythm of industry and renovation of the society masks it. States that Marx praises the industry, invention, and innovation of the bourgeoisie. (BT)

Bissoto, Maria Luisa

2000-01-01

312

'PAR BELO', um clone do tomateiro adaptado Amaznia Oriental  

Microsoft Academic Search

PAR BELO', a tomato clone adapted in Eastern Amazon In Brazil, tomatoes are produced in the cool and dry regions such as Southeast, South, and Center-west, where the climate favors the growth and production of the tomato crop. In the Eastern Amazon, as well as other humid tropical regions, with hot and humid conditions and soils infested with southern wilt

Simon S. Chengk; Elizabeth Y. Chu

2002-01-01

313

Artigo de Reflexo Filosofia em um novo sculo1  

Microsoft Academic Search

The central intellectual fact of the present era is that knowledge grows. This growth of knowledge is quietly transforming philosophy, making it possible to do a new kind of philosophy. With the abandonment of the

Felipe Oliveira de Sous

314

ATRIBUIO DE ISBN O ISBN -International Standard Book Number - um  

E-print Network

internacional padronizado que identifica numericamente os livros segundo o título, o autor, o país, a editora; · catálogos de exposição; · discursos; · guias; ·livros em fita cassete, CD, DVD (audiolivros); ·livros para preenchimento do formulário encontram-se em http://www.isbn.bn.br/website/static/download

dos Santos, C.A.

315

NEUROSCIENCE CURRICUlUm COmmIttEE  

E-print Network

and the brain, and the underlying cellular processes of learning, memory and retrieval of information. In each that occur in single neurons to the expansive cellular networks that ultimately give rise to perception Senior Independent Study: BIOl 45100 Senior Independent Study: BIOl 45200 Cellular Neurophysiology

Wilson, Mark A.

316

Dana-educao: um projeto de pesquisa e extenso  

Microsoft Academic Search

Starting from the need to deepen the study about the dancing in scholar Physic Education, we developed a research and extension project, titled dancing- education. The aim was to enable the body exploration, the knowledge of the dancing manifestation diversity, so well as the argument and the though about dancing. The methodology was lined in research-action and we developed 16

Telma Cristiane Gaspari

317

POR QUE UM CIRCUITO COMPUTACIONAL PODE TRABALHAR SEM RELGIO ?1  

Microsoft Academic Search

The purpose of this article is to do an introduction about concepts related with asynchronous logic and to do an overview of the important operational features in contemporary applications, with examples of the developments and researches in the area.

Leo Weber

318

PROJETO DE UM VENTILADOR MECNICO MICROCONTROLADO PARA PEQUENOS ANIMAIS  

Microsoft Academic Search

Studies using small animals has contributed for the understanding of respiratory mechanics. In these occasions, specific ventilators with sophisticated resources need be applied. This work presents a microcontroled mechanical ventilator developed for small animals with similar resources found in human's ventilators and proposes a new method to obtain\\/control the PEEP. Ventilator performances were done in models of respiratory systems of

A. F. Cruz; A. Giannella-Neto; F. C. Jandre

319

Odontologia: Um breve histrico Dentistry: A historical brief  

Microsoft Academic Search

Key-words O presente trabalho baseia-se em uma reviso da literatura, abordando os aspectos histricos referentes consolidao da Odontologia como profisso regulamentada, assim como uma reflexo crtica a respeito das caracters - ticas deste exerccio profissional e seu embasamento. Devido a uma falta notadamente sentida por parte da literatura cientfica a respeito da histria da Odontologia, o objetivo deste trabalho

Ricardo Henrique; Alves da Silva; Arsenio Sales-Peres

320

MODELAGEM E ARQUITETURAS DE UM PROJETO DO ERP5  

Microsoft Academic Search

The adoption of ERPs systems by small and middle-sized companies may not be possible due to their cost. At the same time, when adapting ERP to the company's particular needs, the user keeps depending on the system's sellers due to the lack of access and knowledge of the respective code. Free and open- source software may promote advantages to the

Ailton da Silva Ferreira

321

Technological Foresight - Um instrumento para poltica cientfica e tecnolgica1  

Microsoft Academic Search

Este texto tem por objetivo apresentar a abordagem de technological foresight2, crescentemente utilizada em vrios pases como instrumento para a alocao de fundos pblicos de C&T, para definio de priorida- des de pesquisa e para melhorar a articulao das organizaes de pes- quisa com as redes de inovao e o setor produtivo. So discutidas suas bases tericas, suas principais caractersticas

MAURO ZACKIEWICZ; SRGIO SALLES-FILHO

322

UM ALGORITMO GENTICO PARA IMPLANTAO DE REDES DE DISTRIBUIO  

Microsoft Academic Search

Genetic algorithms are used to solve the radial feeder problems of routing and sizing. A coding strategy with em- bedded knowledge base is used to reduce the solution search space to a fraction of possible solutions. An individual with two twin chromosomes with different alphabets is used to code a complete solution. With a slight modification in the objective func-

HELON D. M. BRAZ; BENEMAR A. SOUZA; HELTON N. ALVES; ANDREA A. SOUZA; Engenharia Eltrica

323

Strategien, um sicher ans Ziel zu kommen Orientierung  

E-print Network

Analysis of Sensations, which was published in 1886, physicist Ernst Mach made the following success by Johannes Muller, has also assumed an al- most exclusively physical character." When Ernst Mach in this issue describe the interplay of such disparate sensory faculties for navigation. Ernst Mach continued

324

DESENVOLVIMENTO DE UM HIDROMETRO ELETRNICO DE BAIXO CUSTO  

Microsoft Academic Search

The reduction in the world readiness of drinking water is demanding a new conscience from the population in relation to the use of that resource, indispensable for the accomplishment of the human activities and for our survival. In Brazil the auto- mation begins to be used in the basic services of drinkable water supply, with the main goal being the

IVO R. FONTES; JOS A. CAGNON; FELIPE M. BASTOS; MICHEL C. MALARA; ANDR L. ANDREOLI

325

A carreira acadmica de um formando da 1 turma de  

E-print Network

Imagens médicas #12;11/12/2011 3 Experiência em empresas: Telecomunicações Z Tecnologia em Comunicação pela Faculdade de Medicina Desenvolvida em Matlab Usado por mais de 50 grupos em todo o mundo #12

Carvalho, João Luiz

326

Astronomy in High School: Using a Mini-Planetarium to Understand Details of the Apparent Movement of Stars. (Spanish Title: Astronoma en la Escuela Secundaria: Comprendiendo los Detalles del Movimiento Aparente de Las Estrellas con un Miniplanetario.) Astronomia no Ensino Mdio: Compreendendo Detalhes do Movimento Aparente das Estrelas com um Miniplanetrio  

NASA Astrophysics Data System (ADS)

The aim of this article is to present part of the results obtained by the intervention made from the author's Master degree project, which consisted in the development of a set of Astronomy classes for first year of High School students from a private school in the "Distrito Federal", Brasilia, Brazil, making use of a didactical material called mini-planetarium (MP) as the main resource. Using Paulo Freire's contextualization and dialogicity ideas as a theoretical framework guided by these lessons, it was proposed to the students the assembly and application of that resource in a planetarium session. During the project, some subjects such as the apparent trajectory of stars through Brasilia's sky, the location of the cardinal points beginning from the Southern Cross constellation, the color of stars and the stars being seen from a particular place were emphasized. It was found that the students showed an improvement of their understanding about these subjects, as well as a significant excitement with the developed methodology. El objetivo de este trabajo es presentar algunos de los resultados obtenidos en el proyecto de la tesis de maestra del autor, que incluy el desarrollo de algunas clases de Astronoma, con estudiantes del primer ao del bachillerato de una escuela privada del Distrito Federal (Brasilia, Brasil), utilizando como materia prima didctica el recurso llamado miniplanetario (MP). Utilizando como base terica orientadora de esas clases las ideas de contextualizacin y dialgica de Paulo Freire, fue propuesto a los estudiantes el montaje y la utilizacin de este recurso en una funcin de planetario. Durante el proyecto, se enfatizaron asuntos tales como la trayectoria aparente de las estrellas del cielo de Brasilia, la ubicacin de los puntos cardinales a partir de la constelacin de la Cruz del Sur, los colores de las estrellas y las estrellas vistas desde una localidad determinada. Se constat que los estudiantes mostraron una mejora en la comprensin de estas cuestiones y demostraron un gran inters por esta metodologa. O objetivo deste artigo apresentar parte dos resultados obtidos com a interveno feita como projeto da dissertao de mestrado do autor, que consistiu no desenvolvimento de um conjunto de aulas de Astronomia, com alunos do 1 Ano do Ensino Mdio de uma escola da rede privada do Distrito Federal (Braslia, Brasil), empregando como recurso principal um material didtico chamado miniplanetrio (MP). Utilizando como pressuposto terico norteador dessas aulas as ideias de contextualizao e dialogicidade de Paulo Freire, foi proposta aos estudantes a montagem e utilizao desse recurso em uma sesso de planetrio. Durante o projeto, enfatizaram-se assuntos como a trajetria aparente das estrelas para o cu de Braslia, a localizao dos pontos cardeais a partir da constelao do Cruzeiro do Sul, as cores das estrelas e as estrelas vistas de uma determinada localidade. Apurou-se que os alunos apresentaram melhoria na compreenso desses assuntos, bem como demonstraram expressiva empolgao com essa metodologia desenvolvida.

dos Santos Leo, Demetrius

2013-07-01

327

Learning about the Sky from the Environment: An Experience Working Along One Year with Students of Elementary Education. (Spanish Title: Aprendiendo sobre EL Cielo Desde el Entorno: Una Experiencia Trabajando Durante un Ao Junto a Estudiantes del Primario.) Aprendendo sobre o Cu a Partir do Entorno: Uma Experincia de Trabalho ao Longo de um Ano com Alunos de Ensino Fundamental  

NASA Astrophysics Data System (ADS)

Research developed with 95 students of the 6th year of elementary education in a public school of Uberlndia, Minas Gerais. It was a continuous work from February to December 2013, which led the students to participate in activities of observation of the environment, specifically the sky, analyzing the changes occurred. We focused on the study of variations in temperature, rainfall, day length, variations in the size of the shadows and changes in the aspect of the Moon. Our focus of analysis targeted the discussion of the knowledge that these students had about the topics indicated and as they entered the stage during the implementation of the proposal. The results showed a limited perception that students have of their environment, however, lately expanded due to the undertaken activities, especially in relation to the Moon. Working with systematic measure procedures reveals the careful handling of data so that they become understandable to students, and working with the shadows points towards the students first understand how shadows are formed, and then apply this knowledge to Astronomy. Finally, we conclude that the lived process consisted of an initial step of a work that should be encouraged for the subsequent years of training of these students. Proyecto de investigacin desarrollado con 95 alumnos del sexto ao de primaria en una escuela pblica de Uberlndia, Minas Gerais. Fue un trabajo continuo, de febrero a diciembre de 2013, que llev a los estudiantes a participar en actividades de observacin de su entorno, entre ellas, el cielo, analizando los cambios ocurridos. Nos centramos en el estudio de las variaciones en la temperatura, las precipitaciones, la duracin del da, las variaciones en el tamao de las sombras y los cambios en los aspectos de la Luna. Nuestro foco de anlisis se centr en discutir el conocimiento que estos estudiantes tenan sobre los temas indicados al inicio y trmino de la propuesta. Los resultados mostraron una percepcin limitada que los estudiantes tienen de su alrededor la cual, sin embargo, se expandi debido a las actividades llevadas a cabo, sobre todo en relacin con la Luna. Trabajar con medidas sistemticas revela el manejo cuidadoso de los datos para que sean comprensibles para los estudiantes, as como el trabajo con las sombras para que comprendan primero como se forman estas para despus trabajarlas en Astronoma. Por ltimo, llegamos a la conclusin de que el proceso desarrollado consisti en una etapa inicial de una obra que debe ser profundizado en los aos posteriores de la formacin de estos estudiantes. Projeto de pesquisa desenvolvido com 95 alunos do 6 ano do Ensino Fundamental de uma escola pblica estadual de Uberlndia, Minas Gerais. Foi um trabalho contnuo, de fevereiro a dezembro de 2013, o qual levou os alunos a participarem de atividades de observao do entorno, dentre ele, o cu, analisando as mudanas ocorridas. Focamos no estudo das variaes de temperaturas, chuvas, durao do dia, variaes do tamanho das sombras e mudanas nos aspectos da Lua. Nosso foco de anlise centrou-se em discutir os conhecimentos que os referidos alunos tinham acerca dos temas indicados no incio e ao trmino da implementao da proposta. Os resultados mostraram a percepo limitada que os estudantes possuem de seu entorno, todavia, ampliada em funo das atividades desenvolvidas, principalmente no que se refere Lua. O trabalho com medidas sistemticas revela o cuidado no tratamento dos dados para que eles se tornem compreensveis aos alunos, assim como o trabalho com as sombras sinaliza para que os alunos primeiramente compreendam como as sombras so formadas para depois trabalhar isso em Astronomia. Por fim, conclumos que o processo vivido constituiu-se em uma etapa inicial de um trabalho que deve ser estimulado para os anos subsequentes da formao desses alunos.

Longhini, Marcos Daniel; Gomide, Hanny Angeles

2014-12-01

328

UmUm SistemaSistema dede Animao BaseadoAnimao Baseado emem Movimento CapturadoMovimento Capturado  

E-print Network

Movies and television Terminator 2, Titanic, Star Wars and others. q Medicine study of motion deaf the main MoCap abstractions and entities. q Used paradigm: digital video editing motions are independent Standard GUI facilities: XForms q Real-time animation preview q Tested on SGI, RS6000 and Linux

329

High-resolution superconducting x-ray spectrometers with an active area of 282 um x 282 um  

SciTech Connect

Superconducting tunnel junctions coupled to superconducting absorbers may be used as high-resolution, high-efficiency X-ray spectrometers. We have tested devices with niobium X-ray absorbing layers coupled to aluminum layers that serve as quasiparticle traps. In this work we measured the current pulses from a large area tunnel junction using an amplifier based on an array of 100 SQUIDs. Using this amplifier and a 282 micron X 282 micron junction, we have measured an energy resolution of 19 eV FWHM for 1.5 keV X rays and 21 eV for 2.6 keV X rays. The area of this junction is eight times the area of any junction previously measured to have such high energy resolution.

Mears, C.A.; Labov, S.E.; Frank, M.; Netel, H.; Hiller, L.J.; Lindeman, M.A.; Chow, D.; Barfknecht, A.T.

1996-09-11

330

Discussions about the Nature of Science in a Course on the History of Astronomy. (Spanish Title: Discusiones sobre la Naturaleza de la Ciencia en un Curso sobre Historia de la Astronoma.) Discusses sobre a Natureza da Cincia em um Curso sobre a Histria da Astronomia  

NASA Astrophysics Data System (ADS)

There are an increasing number of researches in science education that affirm the importance of discussions on the "nature of science" in basic education level as well as in teacher training. The history of science applied to education is a way to contextualize epistemological discussions, allowing both the understanding of scientific content and learning about science concepts. We present some reasonably consensual definitions on the nature of science that have been widely discussed by the academic community. We show also some episodes in the history of astronomy which can lead to discussions involving some aspects of the nature of science, and how they can do it. Hay un nmero creciente de investigaciones en la enseanza de las ciencias que afirman la importancia de debates sobre la "naturaleza de la ciencia" en la educacin bsica y formacin del profesorado. La historia de la ciencia aplicada a la educacin es una manera de contextualizar los debates de la epistemologa, lo que permite tanto la comprensin de los contenidos cientficos como el aprendizaje de conceptos cientficos. En esto trabajo, presentamos algunas definiciones bastante consensuales sobre la naturaleza de la ciencia que han sido ampliamente discutidas por la comunidad acadmica y mostramos cmo algunos episodios en la historia de la astronoma pueden llevar a discusiones sobre algunos aspectos de la naturaleza de la ciencia. H um nmero crescente de pesquisas na rea de ensino de cincias que afirmam a importncia de discusses sobre a "natureza da cincia" na educao bsica e na formao de professores. A histria da cincia aplicada ao ensino uma maneira de contextualizar discusses epistemolgicas, permitindo tanto a compreenso de contedos cientficos quanto o aprendizado de noes sobre as cincias. Neste trabalho apresentamos algumas definies razoavelmente consensuais sobre a natureza da cincia que foram amplamente discutidas pela comunidade acadmica e mostramos como alguns episdios da histria da astronomia podem levar a discusses envolvendo alguns dos aspectos da natureza da cincia.

Pires de Andrade, Victria Flrio; L'Astorina, Bruno

2010-07-01

331

Diseo de un controlador basado en el modelo del autmata hbrido  

Microsoft Academic Search

The hybrid systems are modeled by the interaction of dynamic continuous and discrete systems. Most of the industrial processes can be continuous, discrete or processes that combine both aspects, the later give place to what is known as hybrid dynamic systems. Many reasons exist to use hybrid models to represent the dynamic behavior of such systems. An important reason is

Cruz Jimnez; Avils Vias; E. Lara Caballero

2009-01-01

332

Modelo y diseo de tren de lavado de gases provenientes de la incineracin de residuos  

Microsoft Academic Search

Owing to its various deleterious effects, abatement of pollutants gases from point sources assumes significant importance over the years. In order to decrease their emissions, the design and construction of an acid gas removal from a solid waste incinerator was developed. The incinerator is located in the San Juan Industrial Park, Argentina. This system is formed by a quench and

Rodrguez Rosa; E. Echegaray Marcelo; Castro Mara; Palacios Carlos; Hektor Klaus; Udaquiola Stella

2008-01-01

333

MODESEC: Modelo para el desarrollo de software educativo basado en competencias  

Microsoft Academic Search

This article describes a model for educational software development based on skills, which presents a vision of developing these applications by combining components of teaching, learning, multimedia and software engineering. The suggested model consists of five stages that describe step by step the process to be taken into account for the creation of educational software. The initial phase, is the

Manuel Fernando Caro; Ral Emiro Toscano

334

Modelo de Integracion Practica del Componente Educativo en los Planes de Manejo de Emergencia  

ERIC Educational Resources Information Center

Education is a basic human right for all people, according to the Universal Declaration of Human Rights. Article 22 of the Children's' Rights Convention stipulates that the Nations are obligated to guarantee that any child requesting refuge receive appropriate protection, humanitarian assistance and full enjoyment of all the rights

Martinez Jimenez, Magna M.

2012-01-01

335

USO DEL MODELO FRACTAL PARA CARACTERIZAR LA DISTRIBUCION DE TAMAO DE PARTICULAS EN SUELOS  

Microsoft Academic Search

The objective of this study was to characterize the particle-size distribution of a soil by means of fractal geometry using the accumulated mass fraction and the particle diameter. In order to fit the experimental data the accumulated mass and the particle diameter were related by a power law relation, as a result of considering the fragmentation process as fractal. The

RR FILGUEIRA; MG GARCA; MF ROGGIERO; A ARAGN; GO SARLI

336

Modelo para programacin de operaciones en la fabricacin de cajas de cartn corrugado  

Microsoft Academic Search

In this paper a new approach to the trim waste problem is presented, where the primary objective is to schedule the production of card boxes based on the trim waste and the Fecha de recepcin: 22 de julio de 2002

Norberto Acevedo Lizarazo; Alexandra Carrillo Barrios; Carlos D. Paternina-Arboleda; Jorge Raish Castilla

337

Modelos auxiliares para problemas de programacion lineal con coeficientes imprecisos en las restricciones  

Microsoft Academic Search

ResumenEn este artculo se considera un problema de Programacin Lineal en el que los coeficientes del sistema de inecuaciones lineales,\\u000a que definen el conjunto de restricciones, estn dados de forma imprecisa o vaga. Se supone entonces que tales coeficientes\\u000a pueden ser definidos mediante nmeros difusos. Se propone un enfoque de resolucin basado en las distintas versiones existentes\\u000a para la comparacin

L. Campos; J. L. Verdegay

1989-01-01

338

Un Marco No-Monotonico para Representar Intenciones Bajo un Modelo BDI  

E-print Network

- vas, est´an ´intimamente relacionadas con las creencias y los planes, al tiempo que proveen elementos posibilidades l´ogicas leg´itimas. As´i, resulta ilustrativo notar que aunque el cambio de creencias sobre la,8,12,16], llevando a teor´ias de revisi´on de creencias y l´ogicas no-monot´onicas para creencias, los #12;2 procesos

Guerra Hernández, Alejandro

339

La Inteligencia Emocional y la educacin de las emociones desde el Modelo de Mayer y Salovey  

Microsoft Academic Search

A fascinating challenge for schools nowadays is to educate students both academically and emotionally. This challenge is justified by the growing number of youth prevention and development programs in Spain. Many of these programs include some emotional intelligence (EI) abilities, but they lack a theoretical and empirical framework. In this article, RESUMEN

Pablo FERNNDEZ BERROCAL; Facultad de Psicologa

2005-01-01

340

Un modelo de arquitectura para el aprendizaje y comparticin de conocimiento entre sistemas inteligentes autnomos distribuidos  

Microsoft Academic Search

It is presented a model of architectures for distributed independent intelligent systems with sharing of knowledge. This one is focused on raising a model so that intelligent independent systems interoperate in distributed surroundings focusing their use in problems of scenes of interaction of virtual, hybrid and real nature. The architecture is provided with a preliminary model of learning and a

Jorge Salvador Ierache; Marcelo R. Naiouf; Ramn Garca-martnez; Armando De Giusti

2008-01-01

341

Sistema de dialogo multimodal basado en modelos estadisticos Multimodal dialog system based on statistical models  

E-print Network

utilizando la arquitectura desarrollada en el proyecto SD- TEAM. Esta arquitectura permite la comu- nicaci-5948 2011 Sociedad Espaola Para el Procesamiento del Lenguaje Natural #12;Figura 1: Arquitectura del

Escolano, Francisco

342

Modelos autoconsistentes de sistemas estelares cuspidales y triaxiales con distribucin de velocidades casi isotrpica  

NASA Astrophysics Data System (ADS)

It has been shown in many works that it is possible to build stable, self-consistent models of triaxial stellar systems, even with cusps, and containing high percentages of chaotic orbits. Since all these models have been obtained from cold collapses, their velocity distributions are strongly radial. Also, chaos was computed using either Lyapunov exponents or SALI. However, models obtained by adiabatic deformation of spherical systems, in which the velocity distribution is more isotropic, showed a very low level of chaos, though it must be noted that the method of detecting chaos used in this case, namely the variation of orbital frequencies, is less sensitive than the abovementioned methods. In this work, we present models obtained by adiabatic deformation, in which we compute the fraction of chaotic orbits using both Lyapunov exponents and variation of orbital frequencies. Our results show that the percentages of chaotic orbits is significant, though they are smaller than those obtained in models with strong radial velocity components. FULL TEXT IN SPANISH

Carpintero, D. D.; Muzzio, J. C.; Navone, H. D.; Zorzi, A. F.

343

Las redes sociales trastocan los modelos de los medios de comunicacin tradicionales  

Microsoft Academic Search

The fast and successful penetration in society of the so-called social networks in the past two or three years has alarmed the traditional media. The new phenomenon reaches a wider audience, enhances advertising, achieves customization, and breaches some of the barriers of traditional media. The new communication channel is used already by millions of Internet users as their main source

Francisco Campos Freire

2008-01-01

344

Sabotaje textual/teatral contra el modelo cannico: Antigona-Humor de Franklin Domnguez  

E-print Network

fusin de gneros y de textos es clave en la visualizacin del texto carnavalesco que es Antgona-Humor. La carnavalizacin en esta pieza teatral se manifiesta por medio de lo que Michael D. Bristol denomina la contaminacin del texto oficial, en la... cual se opta por una estructura literaria establecida cannicamente y se mina con otros textos inscritos en la vida social del pblico (160). En Antgona-Humor, la contaminacin opera a travs de la inclusin de la versin pardica de la prensa, de...

Garcí a, William

1997-10-01

345

Previses Globais de Mudanas Climticas com o Modelo Brasileiro do Sistema Climtico Global  

E-print Network

Henrique M. J. Barbosa1 , I.F.A. Cavalcanti2 , J.C.S. Chagas2 e S.N. Figueroa2 1 IF ­ USP, Rua do Matão implementado no MBSCG (Chagas e Barbosa, 2008). Para isso foi necessário incluir também uma microfísica nuvens (Barbosa e Chagas, 2009). Neste trabalho, o MBSCG foi modificado para considerar a variação

Barbosa, Henrique

346

Aproximacin socio-ecolgica al modelo de estados y transiciones: desafos  

E-print Network

disturbio Natural Capital Human Capital Capital Matter, energy, information #12;Dimensin espacial y): Capital Natural Capital Humano Capital Humano Capital Social Capital Manufactura o Productivo Capital Financiero #12;Social Capital Financial Capital Manufactured Capital Information Factor de

347

MODELOS EXPLICATIVOS DEL COMPORTAMIENTO DE LAS FAMILIAS COMO CONSUMIDORAS DE SERVICIOS FINANCIEROS  

Microsoft Academic Search

In literature, linked with the study of the consumer and the processes of decision he follows, we find there is a high percentage in the talling of decision of tangible resort goods and of services, being one of the less studied themes the related to the decisions associated to the family financial areas. This paper pretend to introduce us in

REYES PREZ; ELISA MARA; MONTERO MURADA; FACULTAD DE CIENCIAS; DPTO. ECONOMA; DIRECCIN DE EMPRESAS; Islas Canarias

348

Manejo integrado de Hypothenemus hampei bajo dos modelos de capacitacin y difusin en Mxico  

Microsoft Academic Search

Integrated pest management of Hypothenemus hampei under two training and extension models in mexico. The quest for alternative training and extension models on integrated pest management for farmers is on the agenda of research institutions and universities. We compared two training and extension models of integrated management of the coffee berry borer Hypothenemus hampei (Ferrari), known as Institutional and Participatory

Ramn Jarqun-Glvez; Juan F. Barrera; Luis Garcia-Barrios; Falguni Guharay; Leobardo Jimnez-Snchez

349

Oscilaciones estelares no-radiales: aplicacin a configuraciones politrpicas y modelos de enanas blancas de He  

NASA Astrophysics Data System (ADS)

Recently in our Observatory we have developed a new Stellar Pulsation Code, independently of other workers. Such program computes eigenvalues (eigenfrequencies) and eigenfunctions of non-radial modes in spherical non-perturbated stellar models. To accomplish this calculations, the four order eigenvalue problem (in the linear adiabatic approach) is solved by means of the well-know technique of Henyey on the finite differences scheme wich replace to the differential equations of the problem. In order to test the Code, we have computed numerous eigenmodes in polytropic configurations for several values of index n. In this comunication we show the excelent agreement of our results and that best available in the literature. Also, we present results of oscillations in models of white dwarf stars with homogeneus chemical composition (pure Helium). This models have been obtained with the Evolution Stellar Code of our Observatory. The calculations outlined above conform a first preliminary step in a major proyect whose main purpose is the study of pulsational properties of DA, DB and DO white dwarfs stars. Detailed investigations have demonstrated that such objets pulsates in non-radial g-modes with eigenperiods in the range 100-2000 sec.

Crsico, A. H.; Benvenuto, O. G.

350

EL MODELO DE VALENCIA DE HIPNOSIS DESPIERTA TCNICAS NUEVAS O TCNICAS INNOVADORAS?  

Microsoft Academic Search

The Waking Hypnosis Valencia Model presents some innovative features that allow an efficient and integrative use of hypnosis. The way of presenting hypnosis to patient avoids trance explanations, or pathological-like terms. The hypnotized persons keep their eyes open while talking fluently. Moreover, hypnosis is contextualized as a general coping skill for self-control that uses the self-regulatory functions of the brain.

Ana Alarcn; Antonio Capafons

351

PROPUESTA DE UN MODELO DE GESTIN AMBIENTAL PARA LA SEDE UNIVERSITARIA MUNICIPAL LA PALMA  

Microsoft Academic Search

La gravedad de los problemas ambientales obliga a replantear el papel de la educacin ante ella; reivindicando as sus aportes al respecto. En la Universidad recae una responsabilidad de primer orden en la socializacin de los conocimientos y en la formacin de una nueva cultura de respeto al entorno natural y social y sus valores. Se necesita, y es impostergable,

Yaima Gmez Gonzlez; Diamelys Pimentel Rivera; Maray Martnez Snchez

2012-01-01

352

O Modelo Dualista de Produo Com Trabalho Apenas e a Questo do Emprego  

Microsoft Academic Search

Our purpose in this paper is to extend and to apply the pure labour model proposed by Pasinetti (1981, 1993) in a closed dual economy in order to discuss employment problem from the economic dualism point of view, developed by W. Arthur Lewis (1954), within the production framework. Emphasis is given to the characteristics of structural change in the process

Leopoldo Costa Junior; Joanlio Rodolpho Teixeira

2006-01-01

353

MODELO PARA EVALUACION DE DERRAMES DE HIDROCARBUROS (HSSM) GUIA DEL USUARIO  

EPA Science Inventory

The U.S. Environmental Protection Agency is charged by Congress with protecting the Nation's land, air, and water resources. Under a mandate of national environmental laws, the Agency strives to formulate and implement actions leading to a compatible balance between human acti...

354

Un modelo spline para el pronstico de la demanda de energa elctrica  

Microsoft Academic Search

Abstract Our goal is to model, with forecasting aims, the daily electricity demand in a southeast,colombian,region through,a non-parametric,regression model implementation.,We consider,some,calendar variables such as time of the day, day of the week, month, and year, among others, on the estimation process. Data come,from,an electricity distribution,local company,and,are taken,from,Valencia (2005). Available data,go from,January,2001 to No- vember,2004. These data show,such a complicated,behavior,that it

Andrs Felipe Barrientos; Javier Olaya; Vctor Manuel; Facultad De Ingenieras

355

Metodos de Multiresolucion y su Aplicacion a un Modelo de Ingenieria  

E-print Network

The main objective of this dissertation is to present an adaptation of some finite volume methods used in the resolution of problems arising in sedimentation processes of flocculated suspensions (or sedimentation with compression). This adaptation is based on the utilization of multiresolution techniques, originally designed to reduce the computational cost incurred in solving using high resolution schemes in the numerical solution of hyperbolic systems of conservation laws.

Baier, Ricardo Ruiz

2005-01-01

356

MODELO CLIENTE-SERVIDOR PARA LA ADMINISTRACION REMOTA DE LA INFORMACION VISUAL EN EDIFICIOS  

Microsoft Academic Search

This paper presents the development and implementation of a visual information management system to be used for local as well as remote monitoring and supervision of critical areas in buildings. The proposed system uses a network Internet-like based communication link and it has been built upon the client-server paradigm. Results about the image quality and delivery times are also shown.

Alfredo C. Castro; Eduardo M. Zavalla; Marcelo L. Martin

357

Adaptao do Modelo Van Hiele para o Ambiente Computacional Utilizando Recursos da Internet  

Microsoft Academic Search

The new technologies of information, associates to education, have allowed that professors and students improve its performances in classroom. In this line, one searches with this work to present a tool that assists in the learning process on geometric figures. The model proposed for the couple Van Hiele was used as base for the adaptation of exercises, of the traditional

Ismael Perin; Leandro P. Bogoni; Jacques D. Brancher

358

Modelos de Algoritmos Genticos y Redes Neuronales en la Prediccin de ndices Burstiles Asiticos  

Microsoft Academic Search

This study analyzes the capacity of multivariated models constructed from genetic algorithms and artificial neural networks to predict the sign of the weekly variations of the Asian stock-market indexes Nikkei225, Hang Seng, Shanghai Composite, Seoul Comp

Antonino Parisini; Franco Parisini; David Daz

2006-01-01

359

Modelo de desarrollo de aplicaciones mviles basadas en videojuegos para la navegacin de personas ciegas  

Microsoft Academic Search

Existe una necesidad real de contar con sistemas para que personas con discapacidad visual mejoren las habilidades de movilidad y orientacin, es especial para que los nios puedan mejorar su autonoma en el futuro. Sin embargo, estos sistemas deben ser diseados acorde a los objetivos, metodologas y recursos disponibles, as como tambin considerando los intereses y formas de interaccin de

Jaime Snchez; Luis Guerrero; Mauricio Senz; Hctor Flores

360

Un modelo economtrico sobre el consumo de agua en el estado de Guanajuato  

Microsoft Academic Search

El problema del agua se agudiza debido a cuestiones de baja eficiencia en el uso del recurso. Por lo general, los volmenes de agua que se aplican a los cultivos exceden a sus requerimientos. Entre los cultivos de ms baja eficiencia se encuentra la alfalfa, uno de los insumos importantes para la produccin pecuaria del Estado. De acuerdo a investigaciones

Eugenio Guzman Soria

2006-01-01

361

Aplicacin de la simulacin al diseo de los sistemas de riego por aspersin: el modelo SIRIAS  

Microsoft Academic Search

En el diseo de instalaciones de riego se busca fundamentalmente la mayor uniformidad en el reparto de\\u000aagua, ya que sta afecta a la produccin del cultivo y a la eficiencia en la utilizacin del agua y la energa. Se\\u000apresenta una metodologa para la distribucin del agua de un aspersor teniendo en cuenta la accin del viento.\\u000aPara ello

Pedro Carrin; Jess Montero; Jos Maria Tarjuelo

1970-01-01

362

Teoras del comercio internacional. Modelos y algunas evidencias empricas: una revisin bibliogrfica  

Microsoft Academic Search

El objetivo central de este trabajo es presentar, sobre la base de un estudio bibliogrfico de material relativamente reciente, las teoras ms importantes acerca de la composicin del comercio internacional, junto con algunas evidencias empricas existentes que son tiles e interesantes para determinar la validez de esas teoras, enfatizando su aplicabilidad en pases subdesarrollados. Es obvio que cualquiera de esas

Hugo Lavados

363

Estudio Lung-MAP: Protocolo modelo para el cncer de pulmn de clulas escamosas  

Cancer.gov

Conjunto de informacin sobre el estudio Lung-Map, el cual examinar los resultados del tratamiento en pacientes con cncer de pulmn de clulas escamosas, quienes fueron asignados a recibir diferentes medicamentos dirigidos segn los resultados del perfil genmico de sus tumores.

364

MODELO LINGSTICO DE TOMA DE DECISIONES MULTICRITERIO CON EXPRESIONES LINGSTICAS COMPARATIVAS  

E-print Network

Granada, herrera@decsai.ugr.es Resumen El interés de esta contribución se centra en pro- blemas de toma de actividades del mundo real como la ingeniería, organización, finanzas, medicina, etc. Los pro- blemas de

Granada, Universidad de

365

El modelo de propaganda de Noam Chomsky: medios mainstream y control del pensamiento  

Microsoft Academic Search

The objective of this work is to offer a panoramic of the model of propaganda developed by the North American linguist and political activist Noam Chomsky, with special incidence in the analysis made by Chomsky and Edward Herman in \\

Antonio Pineda Cachero

2002-01-01

366

El capital humano como un proceso de apoyo en el Modelo de Gestin de la Comercializacin  

Microsoft Academic Search

Las transformaciones econmicas y sociales se hacen sentir de una forma u otra y con intensidades diferentes en cada faceta del proceso de desarrollo del pas; por tanto, las entidades cubanas, y dentro de ellas las empresas comercializadoras estatales, no estn ajenas a estos cambios, por lo que se ven en la necesidad de realizar investigaciones de corte mercantil con

Anabel Surez Gonzlez; Jos Ramn Castellanos Castillo; Carlos Alberto Castellanos

2011-01-01

367

UN MODELO DE EVALUACIN DE LA CALIDAD DE LAS BIBLIOTECAS UNIVERSITARIAS DIGITALES BASADO EN TCNICAS DIFUSAS  

E-print Network

) estn revolucionando las pautas de convivencia en la sociedad actual, afectando tanto a instituciones y revistas digitales, los tradicionales depsitos, reemplazados por los repositorios electrnicos de

Granada, Universidad de

368

Anexo I: Modelo portada Escuela Superior de Ciencias Experimentales y Tecnologa  

E-print Network

la presente autoriza la publicacin del mismo en el Repositorio Institucional de la Universidad Rey autorizacin para publicacin en repositorio URJC Escuela Superior de Ciencias Experimentales y Tecnologa Trabajo Fin de Grado GRADO EN CIENCIAS AMBIENTALES Autorizacin de publicacin en el Repositorio

Rey Juan Carlos, Universidad

369

Desarrollo basado en modelos de sistemas Web de tele-educacin TIN2006-09678  

Microsoft Academic Search

Model-based development is the suitable paradigm for web systems. Implementation technologies as well as offered functionality are in constant evolution. Abstract web designs are far more stable than the implementations, so it is essential to allow developers to express themselves using problem domain entities so there is an improvement in productivity. However, it must be noticed that web development teams

Paloma Daz Prez

370

Comparao quantitativa e qualitativa entre o Modelo Digital gerado pelo SRTM e por aerofotogrametria  

Microsoft Academic Search

Abstract. The present paper reports a qualitative and a quantitative comparison,among,the SRTM DEM and the contours extracted by Photogrammetry. A visual three-dimensional inspection was executed on the,DEM over the stereo models by using a photogrammetric workstation. On the other hand, a referential surface was constructed by the ,contours and other by the ,SRTM DEM. Some analyses were ,executed ,through ,the

Jorge Pimentel Cintra

371

Identificabilidade e estabilidade dos parmetros no mtodo Grade of Membership (GoM): consideraes metodolgicas e prticas  

PubMed Central

O mtodo Grade of Membership (GoM) tem sido cada vez mais utilizado por demgrafos brasileiros e tem a vantagem de possuir um parmetro que mensura a heterogeneidade individual, com base nas correlaes no-observveis entre as categorias de resposta das variveis de interesse, gerando um medida do grau de pertencimento de cada indivduo a perfis extremos. Alguns autores, contudo, chamam ateno para questes importantes na calibragem dos modelos finais que utilizam o programa GoM verso 3.4, como o problema de identificabilidade solues mltiplas para parmetros estimados. Neste artigo, sugerido um procedimento capaz de identificar um modelo final com soluo nica que descreva os tipos puros mais fidedignos base de dados, em uma tentativa de otimizao. Para ilustrar esse processo, utilizou-se uma base de dados correspondente a um levantamento econmico e sociodemogrfico de uma populao de pequenos agricultores residentes ao longo da Rodovia Transamaznica, no Estado do Par. Tambm identificou-se a existncia de instabilidade nos parmetros estimados pelo programa GoM 3.4, sendo proposto um mtodo de estabilizao de seus valores. Com esses procedimentos combinados, os usurios do programa GoM 3.4 podero descrever sua base de dados de forma mais adequada e responder s crticas sobre questes de identificabilidade e estabilidade dos modelos resultantes. Essas solues empricas so relevantes por afetarem clculos de prevalncia e de incidncia de eventos de interesse, alm de trazerem consequncias importantes sobre o ponto e o momento corretos para intervenes de polticas pblicas ou de planejamento prospectivo em anlises de projeo. PMID:21709732

Guedes, Gilvan Ramalho; Caetano, Andr Junqueira; Machado, Carla Jorge; Brondzio, Eduardo Sonewend

2011-01-01

372

Von Neumann e a previs~ao num'erica de tempo e clima  

E-print Network

~oes de tempo acuradas para 24, 48, at'e cerca de 120 horas, em n'ivel mundial. Tal fato pode ser contrastado com as previs~oes prec'arias de 40 anos atr'as, quando teve in'icio a moderna era de previs~ao num com um modelo de 'area limitada de 70 km de resolu¸c~ao, 50 n'iveis na vertical e passos de integra

Kohayakawa, Yoshiharu

373

A teoria da percolao aplicada s galxias aneladas peculiares  

NASA Astrophysics Data System (ADS)

Formulado no final da dcada de 50, o modelo de percolao concentra-se em descrever o meio poroso, que ser visto neste trabalho como uma rede de canais aleatrios, por onde escoa um fluido determinstico. Se o nmero de canais for suficientemente grande, ento eles estaro ligados e o meio se tornar permevel passagem do fluido. Neste caso, dizemos que houve a percolao do fluido. Reformulando o modelo acima, podemos escrever um cdigo particularmente adaptado para simulaes em Galxias, onde iremos supor que os canais formam um reticulado, e que cada stio da rede representa um poro que ser interpretado como uma regio ativa de formao estelar. Para cada elo teremos um pequeno canal ligando dois stios vizinhos, que poder, aps um tempo "t", induzir ou no a formao de uma regio ativa no poro vizinho. Para simular a passagem desta regio ativa atravs dos poros, diremos que um elo est aberto com probabilidade p e fechado com probabilidade 1-p. Dessa forma, passamos a imaginar configuraes de elos abertos e fechados, onde cada configurao ocorre com uma certa probabilidade, dada por p|A|(1-p)|F|, onde |A| o nmero de elos abertos e |F| o nmero de elos fechados da configurao. A expresso anterior s tem importncia fsica se |A| e |F| forem ambos finitos, pois, caso contrrio, a probabilidade de ocorrncia de uma dada configurao ser sempre nula. Neste trabalho, foram considerados dados cinemticos publicados na literatura bem como aqueles obtidos pelos autores a partir de observaes fotomtricas realizadas no Observatrio de Las Campans, em 1994, para a Galxia Anelada Peculiar HRG 03401. Mostraremos que para certos valores de p, situados entre 0,5 e 0,6, os clusters assim formados iro simular, de maneira coerente, o referido objeto.

Poppe, P. C. R.; Martin, V. A. F.; de Medeiros, N. G. F.; Fandez-Abans, M.; Oliveira-Abans, M.

2003-08-01

374

On telescpio remoto do Observatrio Abraho de Moraes - Obelix  

NASA Astrophysics Data System (ADS)

Foi desenvolvido um telescpio totalmente automtico situado no Observatrio Abraho de Moraes, em Valinhos-SP, que possibilita observaes remotas via Internet tanto para fins profissionais como didticos. Usando um programa navegador da WWW, o observador tem acesso a pginas interativas que permitem no s apontar o telescpio e receber as imagens, como tambm controlar a abertura e o fechamento da cpula, monitorar temperatura, umidade e orvalho e receber imagens das cmaras de segurana. O fechamento da cpula feito automaticamente em caso de perigo de condensao. O sistema consiste de uma cmara Apogee, uma roda de filtros SBIG modelo CFW-8 com filtros RGB e um telescpio Meade. A observao remota feita usando programas comerciais da rea. Uma caixa de controle com lgica programvel controla o movimento da cpula e a energizao do telescpio. Um software em LabView adquire os dados da estao meteorolgica, que inclui um sensor de chuva desenvolvido no IAG, e apresenta seus valores atuais e histricos. Usando uma facilidade do prprio LabView, a sada desse software exportada para a Internet. Um programa em C disponibiliza as imagens das cmaras de segurana usando uma placa de captura de vdeo e um seqencial de vdeo que foi adaptado para ser controlado pelo PC. O sistema completo j se encontra operacional.

Neres, N. L.; Raffaelli, J. C.; Medina Tanco, G. A.; Horvath, J. E.; Maluhy, R.; Martins, A.; Orselli, M. I. V.

2003-08-01

375

Observaes simultneas no ptico e infravermelho prximo dos BL Lacs PKS 2005-489 e PKS 2155-304 em diversas escalas de tempo  

NASA Astrophysics Data System (ADS)

A existncia de variaes rpidas de brilho em alguns blazares um fenmeno bem comprovado, mas at agora no sabemos ao certo quais so os mecanismos fsicos envolvidos. A maior dificuldade a ausncia de observaes multibanda simultneas que poderiam fornecer vnculos aos modelos. Buscando colaborar com a discusso estudamos o comportamento de dois BL Lacs, PKS 2005-489 e PKS 2155-304, em relao variabilidade em diversas escalas de tempo, de poucos minutos at vrios meses, com observaes simultneas em seis bandas espectrais (ptico e infravermelho prximo). Para tanto dois telescpios do LNA foram utilizados em conjunto nas campanhas observacionais realizadas em 2001 e 2002, cujos resultados so apresentados aqui. As duas fontes apresentaram caractersticas bastante diferentes, inclusive em relao existncia de variabilidade nos ndices espectrais. Particularmente, registramos a primeira deteco de variaes em escalas de tempo da ordem de poucos minutos em PKS 2005-489, com evidncias da presena de um atraso entre as curvas de luz nas bandas V e R e a variao em R ocorrendo antes (o contrrio do esperado no modelo de shock-in-jet). Em PKS 2155-304 detectamos pela primeira vez variabilidade em escalas de tempo de poucos minutos no infravermelho em um AGN. As observaes indicam que as variaes de brilho em blazares so o resultado da ao de mais de um fenmeno, especialmente em escalas de tempo muito curtas. Alguns cenrios fsicos so sugeridos para explicar os resultados observacionais.

Dominici, T. P.; Abraham, Z.; Galo, A. L.

2003-08-01

376

Evoluo qumica de galxias HII ans  

NASA Astrophysics Data System (ADS)

Galxias HII ans so galxias de baixa massa, com alto contedo de gs, e se encontram em uma fase intensa de formao estelar. A taxa de formao estelar est to alta nestas galxias que no pode ter se mantido durante sua vida inteira. O tempo mximo de durao do episdio atual de formao estelar deve ser no mximo de algumas dezenas de milhes de anos, bem inferior idade destas galxias. Isto leva naturalmente a idia de que j aconteceram surtos anteriores. Abundncias qumicas oferecem uma ferramenta poderosa para investigar a histria evolutiva destas galxias, porque aumentam de gerao em gerao estelar. O hidrognio, o oxignio, o nitrognio produzem algumas das linhas mais importantes em um gs foto-ionizado, permitindo a determinao das abundncias destes elementos facilmente. A disperso das abundncias em oxignio e nitrognio significativa, sendo maior que os erros observacionais. O oxignio produzido em estrelas massivas, que explodem quase instneamente, enquanto o nitrognio produzido em estrelas de massa intermediria, que s o liberam depois de um atraso de @ 500 mihes de anos. Construmos um modelo de evoluo qumica semi-analtico, utilizando rendimentos empricos baseados nas abundncias observadas destes dois elementos. Conseguimos atravs deste modelo rudimentar explicar nas galxias de mais baixas metalicidades as abundncias de oxignio e de nitrognio, assim como a disperso dos dados observacionais devida a formao estelar descontnua, e isto com um nmero baixo de surtos (1 ou 2, no mximo 3).

Ferraresi, M., Jr.; Cuisinier, F.; Telles, E.

2003-08-01

377

Modelling the Volatility of the Spanish Wholesale Electricity Spot Market. Asymmetric GARCH Models vs. Threshold ARSV model\\/Modelizacin de la volatilidad en el mercado elctrico espaol. Modelos GARCH frente al modelo T-ARSV  

Microsoft Academic Search

The liberalization and deregulation of the Spanish electricity market has provoked an increase in the complexity of pricing behaviour. In particular, the volatility of electricity spot prices is the feature that best characterises the current Spanish market. Since an understanding of the volatility process in the electricity market is critically important to distributors, generators and market regulators, this article focuses

JOS M. MONTERO; MARIA C. GARCA-CENTENO; GEMA FERNNDEZ-AVILS

2011-01-01

378

GUADALAJARA JALISCO 2005 XLVIII CONGRESO NACIONAL SMF / XVIII REUNION ANUAL AMO Estudio de efectos foto-inducidos en modelos de  

E-print Network

experimentos descrita en el trabajo. Esperamos obtener resultados, cuyo análisis, nos ayude a obtener sustituir herramientas tradicionales de ese campo por láseres. Estos son fácil de controlar, seguros

Aguilar, Guillermo

379

Diseo y anlisis de escenarios a partir de la caracterizacin de las cadenas productivas mediante modelos de redes  

Microsoft Academic Search

La caracterizacin de las cadenas productivas aplicando el concepto de simulacin mediante redes dinmicas, conlleva una descripcin mucho ms detallada de cada uno de los actores que intervienen en las cadenas, adems de esbozar las relaciones entre los mismos a partir de variables de tipo cuantitativas, resultado de la esquematizacin de sus recursos compartidos. Este artculo es el derivado del

Juan Carlos Vergara Schmalbach; Julio Amzquita Lpez; Francisco Javier Maza vila

2009-01-01

380

Introduccin a un modelo complejo de los softwares multimediales educativos Introduction to a complex model of educational multimedia softwares  

Microsoft Academic Search

Resumen: El diseo de softwares multimediales educativos como materiales para educacin a distancia, ha llevado a que stos sean realizados basados en principios de desarrollos empricos. Este artculo, desde una nueva perspectiva terica interdisciplinaria, enfoca la cuestin del desarrollo de estos materiales interactivos, considerndolos como Sistemas Interactivos Multimediales (SIM), relacionndolos con principios de disciplinas y conceptos tan diversos como la

Luis R. Lara

381

Relevancia del modelo dual de valores en relacin con el prejuicio y la intencin de contacto hacia exogrupos  

Microsoft Academic Search

Title: Relevance of the dual model of values in relation to the prejudice and the contact intention toward outgroups. Abstract: The investigation on the role of values in intergroup relations has been focused on two hypothesis, congruence and difference. While the first one identifies those values which promote and inhibit the preju- dice, the second one assumes that is the

Martnez Martnez; Consuelo Paterna Bleda; Valdiney V. Gouveia

2006-01-01

382

EL PROCESO DE CALIBRACIN DE LOS MODELOS DE CALIDAD DE AGUA EN REDES DE SUMINISTRO. EL ANLISIS DE SENSIBILIDAD  

Microsoft Academic Search

Sensitivity analysis, considered inside the validation process, consists on determining the value of parameters in order than solutions fit some reference measurements. Traditionally it has been considered as a qualitative action, used in the very beginning of calibration process. Nevertheless, in this article, we present a quantitative treatment of sensitivity analysis by stabilising the relative effect of each parameter affecting

P. Amparo Lpez Jimnez; F. Javier Martnez Solano; Gonzalo Lpez Patio; Izquierdo Sebastin

383

APLICACIN DE MODELOS DE DISTRIBUCIN DE ESPECIES A LA CONSERVACIN DE LA BIODIVERSIDAD EN EL SURESTE DE LA PENNSULA IBRICA  

Microsoft Academic Search

Applying only-presence based species distribution models, we develop a modelling framework using multiple algorithms, evaluating and selecting the most accurate models using ROC curves and several random samples. We generate models of suitable habitat for the threatened plant species Linaria nigricans and potential distribution models for greenhouses. Combining the resulting models we built up a relative extinction risk model, useful

BLAS BENITO DE PANDO; JULIO PEAS DE GILES

2007-01-01

384

O USO DE MODELOS MATEMTICOS NA ESTIMATIVA DA DENSIDADE BSICA DA MADEIRA EM PLANTIOS DE CLONES DE Eucalyptus sp  

Microsoft Academic Search

2 , em torno das quais foram cubadas 216 rvores. Foram avaliados 2 clones (hbridos de Eucalyptus grandis e Eucalyptus urophylla), nas idades 3, 4,5 e 6 anos, provenientes de trs stios, na regio leste do Brasil, abrangendo a parte leste e nordeste do Estado do Esprito Santo e o extremo sul do Estado da Bahia. Em cada altura de

Cludio Roberto Thiersch; Jose Roberto Scolforo; Antonio Donizette de Oliveira; Gabriel Dehon; Sampaio Peanha Rezende; Romualdo Maestri

385

ANLISIS DEL MARCO CONCEPTUAL PARA LA PREPARACIN Y PRESENTACIN DE ESTADOS FINANCIEROS CONFORME AL MODELO INTERNACIONAL IASB  

Microsoft Academic Search

A conceptual framework is a theory fundament which, as a constitution, drives the accounting normative-tech- nical ruling development. The Frame- work uses a deductive logic itinerary and, through inference, derives, from superior environment and appropri- ate accounting system postulates, the accounting standards associated with specifi c ends. The system can be assumed as teleological.

CARLOS ALBERTO; MONTES SALAZAR; OMAR DE JESS; MONTILLA GALVIS; EUTIMIO MEJA SOTO

386

Inversores Financieros en los Mercados de Commodities: Un Modelo con Dinmica de Ajuste no Lineal al Equilibrio  

Microsoft Academic Search

Commodity prices have been growing fast in the last few years and this has caused countless economic changes worldwide. This paper looks for a place in this topic offering a smooth transition vector autoregressive model whose motivation is rooted in the heterogeneous agent based models literature. The econometric methodology aims at identifying both those variables that influence prices in the

Diego Bastourre

2008-01-01

387

Estudio de terapias dirigidas para el cncer de seno estableci un modelo de estudios clnicos a nivel mundial  

Cancer.gov

Dos medicamentos de accin dirigida, diseados para tratar una forma agresiva de cncer de seno (mama), se pusieron a prueba en un estudio que incluy a 8 000 participantes en 44 pases. Si bien la finalidad del estudio fue ayudar a que los investigadores determinaran si el tratamiento combinado con trastuzumab y lapatinib para el tratamiento del cncer de seno HER2 positivo en estado inicial era mejor que la terapia solo con trastuzumab, los resultados del estudio no indicaron que existan ventajas para las mujeres al recibir la combinacin de frmacos de trastuzumab o lapatinib.

388

Modelo multicritrio de apoio a deciso para o planejamento de manuteno preventiva utilizando PROMETHEE II em situaes de incerteza  

Microsoft Academic Search

As a strategic tool to reduce costs and increment the availability of the plant, Preventive Maintenance has become quite popular over the last years due to the significant increase of its application in industries. Despite the great quantity of models that deal with that problem, these are less than satisfactory in many situations when failure data are inexistent or not

Cristiano Alexandre Virgnio Cavalcante; Adiel Teixeira de Almeida

2005-01-01

389

Comportamento espectral de fitofisionomias do Cerrado e desenvolvimento de ndices utilizando bandas sintticas derivadas de Modelos Lineares de Mistura Espectral  

E-print Network

, Brasil sano@cpac.embrapa.br Abstract. The Cerrado biome covers more than two million km² in the central region of Brazil. It is the second largest biome in this country, presenting rich biodiversity. Remote. This paper analyzes the behavior of vegetation cover in the Cerrado biome through the Landsat5/TM spectral

Hammerton, James

390

Factor de independencia a la distraccin en el trastorno por dficit de atencin con hiperactividad: un modelo abreviado  

Microsoft Academic Search

El factor independencia a la distraccin (FID) del WISC-R presenta frecuentemente resultados infe- riores al factor organizacin perceptiva (FOP) y comprensin verbal (FCV) en casos de Trastorno por Dficit de Atencin con Hiperactividad (TDAH). La formulacin FID< (FCV + FOP)\\/2 tiene buena sensibilidad para TDAH. El objetivo principal de este estudio ha sido reducir el nmero de pruebas ne- cesarias

Jos Antonio; Lpez Villalobos

391

EL SECTOR DE GANADERA BOVINA EN COLOMBIA. APLICACIN DE MODELOS DE SERIES DE TIEMPO AL INVENTARIO GANADERO  

Microsoft Academic Search

This document makes an estimation of the bovine cattle inventory in Colombia, tend to give lights on the probability of the policies of cattle development in the country, basically with a view to contributing methodological instruments like Arima models and other models of series of time in the estimation of the cattle inventory in Colombia. The analysis begins with a

NOEL JOS CUENCA JIMNEZ; FERNANDO CHAVARRO MIRANDA; OSCAR HUMBERTO; DIAZ GANTIVA; COLOMBIANA DE INGENIERA

2008-01-01

392

Cuatro Modelos para Disenar Actividades de Capacitacion de Docentes (Four Models to Design In-Service Teacher Training Activities).  

ERIC Educational Resources Information Center

In designing inservice teacher training activities, it is necessary to apply educational principles and teaching and learning techniques which are suitable for adult education programs. Four models for designing inservice teacher training programs are the Malcom Knowles Model, the Leonard Nadler Model, the Cyril O. Houle Model, and the William R.

Valle, Victor M.

393

Comparing the use of 4.6 um lasers versus 10.6 um lasers for mitigating damage site growth on fused silica surfaces  

SciTech Connect

The advantage of using mid-infrared (IR) 4.6 {micro}m lasers, versus far-infrared 10.6 {micro}m lasers, for mitigating damage growth on fused silica is investigated. In contrast to fused silica's high absorption at 10.6 {micro}m, silica absorption at 4.6 {micro}m is two orders of magnitude less. The much reduced absorption at 4.6 {micro}m enables deep heat penetration into fused silica when it is heated using the mid-IR laser, which in turn leads to more effective mitigation of damage sites with deep cracks. The advantage of using mid-IR versus far-IR laser for damage growth mitigation under non-evaporative condition is quantified by defining a figure of merit (FOM) that relates the crack healing depth to laser power required. Based on our FOM, we show that for damage cracks up to at least 500 {micro}m in depth, mitigation using a 4.6 {micro}m mid-IR laser is more efficient than mitigation using a 10.6 {micro}m far-IR laser.

Yang, S T; Matthews, M J; Elhadj, S; Cooke, D; Guss, G M; Draggoo, V G; Wegner, P J

2010-10-21

394

Controle da Tarefa de Estacionamento de um Veculo Autnomo atravs do Aprendizado de um Autmato Finito usando uma Rede Neural JCC  

Microsoft Academic Search

This paper presents the SEVA system (Autonomous Vehicle Parking S imulator). This tool was used to implement a robust control system for autonomous vehicle parking ba sed on a FSA (Finite State Automata) and also ba sed on an ANN (Artificial Neural Networks). Initially a FSA was developed in o rder to control t he vehicle performing a parallel parking

F. Osrio; F. Heinen; L. Fortes

395

Representaes Qunticas no Espao de Fases Uma funo de onda abstrata | > um vetor em um espao de Hilbert. Esse vetor pode ser expresso  

E-print Network

espaço de Hilbert. Esse vetor pode ser expresso em termos de uma infinidade de representações ortonormais. Assim nenhuma função das coordenadas (q,p) pode ser definida de forma a ser interpretada como" dado o Princípio da Incerteza. Uma excelente revisão desse formalismo pode ser encontrado em [13,14]. 2

de Aguiar, Marcus A. M.

396

A Importncia de um Layout na Armazenagem de Produtos Acabados Um Estudo de Caso: Diplomata S\\/A Industrial e Comercial  

Microsoft Academic Search

Este estudo analisou os princpios relacionados s disciplinas de Organizao, Sistemas e Mtodos e Administrao Logstica. Os termos abordados foram: layout, armazenagem, logstica e centro de distribuio. Este teve como caso prtico a empresa Diplomata S\\/A Industrial e Comercial, que apresenta problemas devido disponibilidade de espao fsico atual para estocagem de seus produtos finais. Neste estudo analisou-se a capacidade

Poliana Soares Hudson; Samir Rodrigues Haddad

397

Variao temporal do gradiente radial de o/h a partir de uma amostra de nebulosas planetrias  

NASA Astrophysics Data System (ADS)

Gradientes radiais de abundncia so observados no disco de nossa Galxia e tambm em outras galxias espirais. No caso da Galxia, o principal problema relativo aos gradientes sua variao temporal, que constitui um dos principais vnculos aos modelos de evoluo qumica da Galxia. As nebulosas planetrias so particularmente interessantes no estudo dos gradientes e suas variaes, tanto espaciais como temporais. So objetos brilhantes, podendo ser observadas a grandes distncias, e tm abundncias relativamente precisas de diversos elementos qumicos. Alm disso, sendo originadas de estrelas com massas entre 0.8 e 8 massas solares na sequncia principal, incluem objetos com idades e populaes diferentes, o que as torna especialmente interessantes ao estudo da variao temporal dos gradientes. Neste trabalho, apresentamos resultados recentes sobre a variao temporal do gradiente de O/H a partir de uma amostra contendo cerca de 200 nebulosas, para as quais obtivemos distncias por mtodos estatsticos. As abundncias foram parcialmente obtidas a partir de observaes em Itajub e La Silla, sendo as restantes obtidas da literatura. Os resultados mostram, pela primeira vez, evidncias de um achatamento do gradiente de O/H, de -0.11 dex/kpc para -0.06 dex/kpc nos ltimos 9 giga-anos ou de -0.08 dex/kpc para -0.06 dex/kpc nos ltimos 5 giga-anos. Esses valores apresentam um bom acordo com alguns modelos recentes para a evoluo qumica da Galxia. (FAPESP/CNPq)

Maciel, W. J.; Costa, R. D. D.; Uchida, M. M. M.

2003-08-01

398

A fonte ionizante do disco de acreo no ncleo de NGC1097  

NASA Astrophysics Data System (ADS)

Observaes em raios-X revelam o "corao" dos ncleos ativos de galxias, pois esse tipo de radiao provm das suas regies mais internas, prximas ao buraco negro central. Neste trabalho apresentamos observaes em raios-X da regio central da galxia NGC1097, que hospeda um buraco negro supermassivo e um disco de acreo cuja emisso vem sendo observada h dez anos atravs da linha de emisso Ha larga (10000 km/s) e de duplo pico. As observaes em raios-X - que foram obtidas com o Telescpio Chandra - foram combinadas com observaes no ultravioleta obtidas com o Telescpio Espacial Hubble e so usadas para estudar as caractersticas da fonte central que ioniza o disco de acreo. A distribuio espectral de energia comparada com a predita por modelos, em particular o de uma estrutura "ADAF" ("advection dominated accretion flow") na parte interna do disco. Tal estrutura produz um espectro de emisso de linhas estreitas tipo LINER, como observado em NGC1097 e em rdio-galxias que apresentam linhas de Balmer largas de duplo pico. Apresentamos tambm uma comparao entre outros LINERs com linhas de emisso largas de duplo pico, disponveis na literatura ou nos arquivos do Chandra e do Telescpio Espacial Hubble e discutimos as correspondentes implicaes para modelos da fonte central.

Silva, R. N.; Storchi-Bergmann, T.

2003-08-01

399

A distribuio de velocidades na linha de visada em galxias barradas vistas de face  

NASA Astrophysics Data System (ADS)

Com o objetivo de realizar um estudo cinemtico da componente vertical de barras em galxias, obtivemos espectros de fenda longa de alta razo S/N ao longo dos eixos maior e menor de 14 galxias barradas vistas de face, nos telescpios de 1.52m do ESO em La Silla, Chile, e de 2.3m do Steward Observatory em Kitt Peak, Arizona. Estes dados nos permitiram determinar a distribuio de velocidades das estrelas ao longo do eixo vertical das barras e discos destes sistemas, tanto no centro como em pontos que distam cerca de 5 e 20 segundos de arco do ncleo, correspondendo a distncias de cerca de 0.7 e 2.8 kpc, respectivamente. Desta forma, a variao radial da distribuio de velocidades tambm pde ser avaliada. Este tipo de anlise tem raros exemplos na literatura por ser caro em termos de tempo de telescpio. Entretanto, de fcil justificativa, considerando que traz novas informaes que podem ser utilizadas para aperfeioar modelos tericos acerca da formao e evoluo de galxias. Um algoritmo por ns desenvolvido foi utilizado para obter as distribuies de velocidades como Gaussianas generalizadas (polinmios de Gauss-Hermite), o que traz um ingrediente a mais neste tipo de estudo que, tradicionalmente, se utiliza de Gaussianas puras, uma hiptese nem sempre razovel. Apresentaremos os resultados deste trabalho, que incluem um diagnstico para a identificao de barras recm formadas, e testes para o modelo isotrmico de discos. Mostraremos que: (i) a escolha das estrelas padro em velocidade, e dos parmetros da Gaussiana, deve ser muito bem justificada j que tem influncia significativa nos resultados; (ii) muitas galxias apresentam uma depresso na disperso de velocidades na regio central, que pode estar associada a um disco interno; e (iii) a disperso de velocidades constante ao longo da barra, nos eixos maior e menor, mas cai substancialmente quando se passa da barra para o disco.

Gadotti, D. A.; de Souza, R. E.

2003-08-01

400

Rotao do jato em DG tau prximo regio de sua formao: anlise comparativa das velocidades radiais simuladas e observadas  

NASA Astrophysics Data System (ADS)

Os modelos magneto-centrfugos utilizados para explicar a formao dos jatos Herbig-Haro assumem a presena de um disco de acreso em rotao kepleriana na base de lanamento do jato. Neste cenrio, o jato transmite a informao da rotao do disco para regies distantes da fonte central, alm da superfcie de Alfvn, na regio de colimao inicial do jato. Recentemente, Bacciotti et al. (2002, ApJ, 537, L49) obtiveram pela primeira vez uma evidncia observacional de rotao em um jato HH, o jato em DG Tau, em regies prximas da fonte central, compatvel (qualitativa e quantitativamente) com o esperado a partir dos modelos magneto-centrfugos para a produo e colimao inicial de jatos HH. No presente trabalho, apresentamos mapas de velocidade radial, obtidos atravs de simulaes numricas tri-dimensionais SPH, para um jato com caractersticas semelhantes ao jato em DG Tau, objetivando uma comparao com os mapas de velocidade radiais obtidos por Bacciotti et al.. Nossos resultados, embora preliminares, indicam que a incluso de efeitos como a precesso, evidenciada em DG Tau (Dougados et al. 2000, A&A, 357, L61) devem ser levadas em considerao na anlise da presena de rotao no s em DG Tau mas em qualquer sistema, com o uso das velocidades radias observadas. A ausncia de um grau elevado de simetria axial (quebrada, por exemplo, pela precesso do eixo do jato; ou pela presena de uma superfcie interna de trabalho, ou seja, um bow shock interno), implica tambm em uma maior complexidade nos mapas, com conseqncias relevantes para suas interpretaes.

Cerqueira, A. H.; de Gouveia dal Pino, E. M.

2003-08-01

401

Is the Dark Side of the Moon Ever Illuminated by the Sun? (Breton Title: O Lado Escuro da Lua Nunca Apanha Sol?) El Lado Oscuro de la Luna Nunca Toma Sol?  

NASA Astrophysics Data System (ADS)

This work presents the elaboration of an answer to the question "Is the dark side of the moon ever illuminated by the sun?", in which issues related to the students' conceptions, how they arise, and the core elements that constitute a "good answer" are considered. These issues are initially elaborated from a literature review of the research in the field; then, and also based on this review, a didactic model that involves the relative motions of the Earth - Moon - Sun system is proposed. A description of the application of this model in a learning environment within middle school students is described. This work confirms the students' initial concepts described in the literature; on the other hand, the questions asked by students during the activity provide evidence that meaningful learning, at least to some degree, has occurred. Este trabalho apresenta a elaborao de uma resposta pergunta "O lado escuro da Lua nunca apanha sol?" na qual so consideradas questes relacionadas s concepes iniciais dos alunos, de onde elas surgem e os elementos centrais que constituem uma "boa resposta". Essas questes so tratadas, inicialmente, a partir de uma reviso da literatura sobre pesquisas na rea e, em seguida, tambm com base nessa reviso, um objeto modelo didtico que envolve os movimentos relativos do sistema Terra Lua Sol proposto. Uma descrio detalhada da aplicao deste modelo em um ambiente de aprendizagem com alunos do ensino fundamental relatada. As concepes iniciais apresentadas na literatura se confirmam e os questionamentos feitos pelos estudantes por ocasio da aplicao do modelo fornecem indcios de que uma aprendizagem significativa, pelo menos em algum grau, ocorreu. El artculo se presenta el desarrollo de una respuesta a la pregunta "El lado oscuro de la luna nunca toma sol?", en la que se consideran algunas cuestiones vinculadas que se refieren a las concepciones iniciales de los estudiantes, dnde surgen y los elementos bsicos que componen una "respuesta correcta". Estas cuestiones se tratan inicialmente a partir de una revisin bibliogrfica de la investigacin en el rea; seguidamente, y tambin sobre la base de sta revisin, se propone un modelo didctico que ejemplifica los movimientos relativos del sistema Tierra - Luna - Sol. Se describe a continuacin una aplicacin de este modelo en un entorno de aprendizaje con alumnos del ciclo primario. Los conceptos iniciales presentados en la literatura se confirman y las cuestiones planteadas por los estudiantes durante la implementacin del modelo proporcionan evidencia de que se ha producido un aprendizaje significativo, al menos en cierta medida.

Giovannini, Odilon; Pellenz, Daiana; Catelli, Francisco

2014-07-01

402

Evoluo rotacional de corpos reacumulados  

NASA Astrophysics Data System (ADS)

Asterides reacumulados (rubble-piles) so corpos formados por um conjunto de fragmentos agregados primariamente pela sua gravidade. A importncia do estudo de corpos reacumulados para a compreenso da evoluo do Cinturo de Asterides tem sido bastante evidenciada, no apenas pela constatao de que estes devem corresponder a uma grande parcela da populao de asterides, mas tambm por recentes estudos da estrutura e evoluo colisional deste tipo de asteride. A evoluo rotacional de corpos reacumulados e a formao de famlias tm sido estudadas pelo nosso grupo, com base no modelo de elipsides interagentes. Este modelo foi desenvolvido recentemente pelo grupo, e baseia-se na integrao numrica das equaes de movimento para translao e rotao de corpos formados por um conjunto de elipsides que interagem entre si pela sua gravidade, fora de contato e dissipao de energia por atrito. Considerar a rotao de cada fragmento a principal diferenciao do nosso modelo em relao aos que tm sido desenvolvidos recentemente. Apresentamos aqui os resultados obtidos para a evoluo da rotao de populaes de corpos reacumulados. Estes foram submetidos a sries de colises com projteis de altas velocidades (5Km/s, tpicas do Cinturo atual), distribudos em uma lei de potncias de tamanhos. Estes resultados so comparados com os de Harris (1979), um dos poucos trabalhos analticos existentes para evoluo rotacional de asterides. O principal resultado obtido por Harris foi a distribuio final de velocidades de rotao como uma lei de potncias para corpos pequenos, passando de forma bem definida para rotao constante para os grandes. Nas nossas simulaes observamos que as distribuies de velocidades de rotao resultantes tendem a leis de potncia, com a inclinao evoluindo no decorrer de colises subsequentes.

Penteado, P.; Lazzaro, D.; Roig, F.; Duffard, R.; Kodama, T.

2003-08-01

403

Escracha! Eu sou batata, entende? famlia e Autoritarismo no Moderno Teatro Brasileiro  

E-print Network

totalmente preocupado com a luta de classes" (Peixoto 85). No vem ao caso reproduzir aqui algumas das crticas que nos ltimos anos tm sido feitas ao Teatro de Arena (ou a seu mais ilustre descendente, o Teatro do Oprimido, de Augusto Boal) por autores..., se retira de cena mais uma vez o personagem negro com suas particularidades histricas, em prol de um modelo humanista de luta pela liberdade". Ampliado o perfil do personagem negro ele "se converte em herica representao de uma luta universal e...

Reis, Roberto

1994-10-01

404

VizieR Online Data Catalog: NGC 891 70-500um images (Hughes+, 2014)  

NASA Astrophysics Data System (ADS)

We present new, reduced Herschel Space Observatory PACS and SPIRE 70, 160, 250, 350, and 500 micron observations of NGC 891 taken has part of the Very Nearby Galaxy Survey (P.I.: C. Wilson) and an additional PACS 100 micron image taken from the Herschel EDGE-on galaxy Survey (P.I.: E. Murphy). The PACS 70, 100 and 160 observations were reduced with the Herschel Interactive Processing Environment (HIPE) v.11.0.1 with PACS Calibration v.32 and Scanamorphos v.22.0 (Roussel, 2013PASP..125.1126R). The SPIRE 250, 350, and 500 micron observations data were reduced with HIPE v.11.0.12 including the latest calibration due for inclusion in HIPE v.12.0 (Bendo et al., 2013MNRAS.433.3062B), and BriGAdE (Smith, in preparation). Complete details on the data reduction may be found in the paper. Image properties are summarised in images.dat. Please note that the FITS images presented here do not include the calibration factors to account for extended sources, nor colour corrections as described in the paper. The raw data can be retrieved from the Herschel Science Archive (ESA). (2 data files).

Hughes, T. M.; Baes, M.; Fritz, J.; Smith, M.; Parkin, T.; Gentile, G.; Bendo, G.; Wilson, C.; Allaert, F.; Bianchi, S.; De Looze, I.; Verstappen, J.; Viaene, S.; Boquien, M.; Boselli, A.; Clements, D.; Davies, J.; Galametz, M.; Madden, S.; Remy-Ruyer, A.; Spinoglio, L.

2014-02-01

405

DualBeam metrology: a new technique for optimizing 0.13-um photo processes  

NASA Astrophysics Data System (ADS)

A DualBeam Metrology system was investigated for the application of obtaining 3-dimensional (3D) characterization of a 130 nm ground rule KrF photolithography process. Integrated circuit devices are 3-dimensional in structure and, hence, should be best characterized using 3-dimensional techniques to ensure adherence to the design architecture and the desired process window for manufacturing. The need for 3D metrology is further required for the characterization and monitoring of critical layer processes and equipment performance. The metrology used in this investigation is a novel technique for critical feature cross sectioning. The process for DualBeam metrology uses a focused ion beam (FIB) for milling or cutting the cross section through the photoresist or process film. An integrated scanning electron microscope (SEM) provides high-resolution imaging of the features, and a flexible automated metrology package collects and analyzes the data. To demonstrate the feasibility of the technique, critical dimension (CD) data and sidewall angle (SWA) measurements were captured from 130 nm lines and 150 nm contacts at 1:1 densities. The critical criteria for the characterization of the photolithography process window are CD control, depth of focus (DOF), exposure latitude, and feature sidewall angle or profile. Using the DualBeam technique, 2D and 3D data are captured on a single machine platform using a cut, look, and measure routine. A further benefit is the availability of high-resolution cross-sectional SEM images that can be used qualitatively to validate the quantitative data. The results presented here show the performance of this 130 nm ground rule process and the benefits of utilizing this efficient characterization technique.

Berger, Steven D.; Desloge, Denis; Virgalla, Robert J.; Davis, Todd; Paxton, Ted A.; Witko, David

2001-08-01

406

10-um thin GaAs membrane manufactured by nonselective etching  

NASA Astrophysics Data System (ADS)

The aim of this paper is to determine an optimum nonselective etching solution in order to manufacture an as thin as possible, uniform and high quality GaAs membrane. Three different etching systems in various proportions of the components were analyzed. A high quality 10 micrometer thin GaAs membrane was obtained using the [1(H3PO4)]: [1(CH3OH)]: [3(H2O2)] etching solution. The micromachined GaAs membranes are manufactured to be used as support for microwave circuits as well as in high temperature sensor applications.

Mueller, Alexandru; Petrini, Ioana; Avramescu, Viorel; Iordanescu, Sergiu A.; Marcelli, Romolo; Foglietti, Vittorio; Dragoman, M.

1997-09-01

407

VizieR Online Data Catalog: MIPS 24um calibrators (Engelbracht+, 2007)  

NASA Astrophysics Data System (ADS)

The data were all obtained using the MIPS small-field photometry mode astronomical observation template (AOT). For most targets, two cycles of photometry using 3s exposures were obtained, resulting in 14 individual images at each of two telescope nod positions (excluding the short exposure that starts the data-taking sequence at each of the two telescope nod positions). Starting with the raw data downloaded from the Spitzer Science Center (SSC), these data were processed using version 3.06 of the MIPS Data Analysis Tool (DAT; Gordon et al., 2005PASP..117..503G), which performs standard processing of infrared detector array data (slope fitting, dark subtraction, linearity correction, flat fielding, and mosaicking), as well as steps specific to the array used in MIPS (droop correction and dynamic range extension using the first difference frame) -- these steps are described in more detail in the paper. (5 data files).

Engelbracht, C. W.; Blaylock, M.; Su, K. Y. L.; Rho, J.; Rieke, G. H.; Muzerolle, J.; Padgett, D. L.; Hines, D. C.; Gordon, K. D.; Fadda, D.; Noriega-Crespo, A.; Kelly, D. M.; Latter, W. B.; Hinz, J. L.; Misselt, K. A.; Morrison, J. E.; Stansberry, J. A.; Shupe, D. L.; Stolovy, S.; Wheaton, W. A.; Young, E. T.; Neugebauer, G.; Wachter, S.; Perez-Gonzalez, P. G.; Frayer, D. T.; Marleau, F. R.

2014-07-01

408

VizieR Online Data Catalog: Chamaeleon III 870um sources maps (Belloche+, 2011)  

NASA Astrophysics Data System (ADS)

The 870 micron dust continuum emission map of the Chamaeleon III molecular cloud displayed in Fig. 2 is available at CDS in FITS format. The data were obtained with the bolometer camera LABOCA at the APEX telescope. They were calibrated, reduced, co-added, gridded, smoothed to an effective angular resolution of 21.2" (FWHM), and written in FITS format with the BoA software. The flux density unit is Jy/21.2"-beam. The coordinates are equatorial (J2000) and the offsets are in RADIO projection. (1 data file).

Belloche, A.; Parise, B.; Schuller, F.; Andre, P.; Bontemps, S.; Menten, K. M.

2011-06-01

409

VizieR Online Data Catalog: Chamaeleon I 870um sources (Belloche+, 2011)  

NASA Astrophysics Data System (ADS)

Table 2 lists the sources extracted with GAUSSCLUMPS from the filtered 870 micron continuum emission map of Chamaeleon I obtained with the bolometer camera LABOCA at the APEX telescope. These sources are listed in the order in which they were found by GAUSSCLUMPS, i.e. roughly in order of decreasing peak flux density. The 870 micron dust continuum emission map of the Chamaeleon I molecular cloud is available in FITS format. The data were obtained with the bolometer camera LABOCA at the APEX telescope. They were calibrated, reduced, co-added, gridded, smoothed to an effective angular resolution of 21.2" (FWHM), and written in FITS format with the BoA software. The flux density unit is Jy/21.2"-beam. The coordinates are equatorial (J2000) and the offsets are in RADIO projection. (6 data files).

Belloche, A.; Schuller, F.; Parise, B.; Andre, P.; Hatchell, J.; Jorgensen, J. K.; Bontemps, S.; Weiss, A.; Menten; K. M.; Muders, D.

2011-01-01

410

STRUCTURE OF ERIOPHOR UM TUSSOCK TUNDRA ECOSYSTEM IN NORTHERN YUKON TERRITORY, CANADA  

Microsoft Academic Search

Vegetation structure and soil profile characteristics of Eriophorum tus- sock tundra in northern Yukon Territory, Canada, were studied. Based on twenty sample plots, a vegetation synthesis table was constructed. Constancy and average cover values were calculated for all the vascular plant species. The following species, Eriophorum vaginatum, Ledum decumbens, Betula glandulosa, Vaccinium vitis-idaea, Empetrum nigrum, Rubus chamaemorus, Carex lugens and

Satoru KOJIMA

1996-01-01

411

Construo e validao de um sistema hipermdia para o ensino de Fsica Moderna  

Microsoft Academic Search

We relate the characteristics and the potentiality of a hypermedia system elaborated in order to support the teaching and learning of Modern Physics topics at High School level. The research involved the production and validation of a software based on ausubelian principles, studies regarding the insertion of Modern Physics in High School, debates related to the Science- Technology-Society-Environment movement, considerations

Daniel Iria Machado; Roberto Nardi

412

VizieR Online Data Catalog: WISE and HIP 22um excess stars (Wu+, 2013)  

NASA Astrophysics Data System (ADS)

In this paper, we present a catalog that includes 141 bright candidates (<=10.27mag, V band) showing an excess of infrared (IR) at 22?m. Of these 141 candidates, 38 stars are known IR-excess stars or disks, 23 stars are double or multiple stars, and 4 are Be stars while the remaining more than 70 stars are identified as 22 ?m excess candidates in our work. The criterion for selecting candidates is Ks-[22]?m. All these candidates are selected from the Wide-field Infrared Survey Explorer all-sky data cross-correlated with the Hipparcos main catalog and the likelihood-ratio technique is employed. Considering the effect of background, we introduce the IRAS 100?m level to exclude the high background. We also estimate the coincidence probability of these sources. In addition, we present the optical to mid-IR spectral energy distributions and optical images for all the candidates, and give the observed optical spectra of six stars with the National Astronomical Observatories, Chinese Academy of Sciences' 2.16m telescope. To measure for the amount of dust around each star, the fractional luminosity is also provided. We also test whether our method of selecting IR-excess stars can be used to search for extra-solar planets; we cross-match our catalog with known IR-excess stars with planets but found no matches. Finally, we give the fraction of stars showing excess IR for different spectral types of main-sequence stars. (2 data files).

Wu, C.-J.; Wu, H.; Lam, M.-I.; Yang, M.; Wen, X.-Q.; Li, S.; Zhang, T.-J.; Gao, L.

2013-11-01

413

UM0125464 (C02)Retusin-7-methylether (C01) Chrysin (C04)  

E-print Network

* DMSO SR1 nophenolred nophenolred,noAB nophenolred nophenolred,noAB DMSO SR1 0 2 -2 3 4 5 6 CYP1B1 CYP1A1 AML 05H163* 2 4 0 6 8 10 12 +DMSO -DMSO +DMSO -DMSO CYP1B1 CYP1A1 log2-foldchange/t0 log2-folddifference/ plastic-DMSO log2-foldchanget24h /t 0 log2-foldchanget24h /t 0 05H163 08H012 08H112 09H046 10H038

Cai, Long

414

Optical design of the 1-5-um infrared camera of the IAC  

Microsoft Academic Search

An infrared liquid nitrogen (LN2) cooled focal reducer camera has been designed to be used at the 1.5 m (f\\/13.8) Carlos Sanchez IR Telescope (CST) at the Observatorio del Teide. The image quality is better than 30 micrometers (typical pixel size of the detector) with an image scale of 0.5 arcsec\\/pixel. The final design is a very compact system which

Antonio Manescau; F. Javier Fuentes; Vicente Sanchez

1993-01-01

415

Corpos no interior de um recipiente fechado e transparente em queda livre  

E-print Network

Neste artigo discutimos uma nova demonstracao experimental da independencia das propriedades dos corpos (massa, composicao quimica, forma, etc.) na queda livre. Eh uma das experiencias mais simples, porem uma das mais importantes da Mecanica, tendo sido realizada e repensada repetidamente por diversos cientistas tais como Galileu e Newton. Nossa versao eh introduzir dentro de uma garrafa fechada e transparente uma pena e uma pedra observando a queda simultanea destes corpos. Por nao haver a necessidade de produzir vacuo, esta versao pode ser repetida por qualquer aluno e professor de ensino medio e universitario em qualquer ambiente, evidenciando sua viabilidade e aplicabilidade na sala de aula. English version of abstract: In this paper we discuss a new experimental demonstration of the independence of the properties of bodies (mass, chemical composition, shape, etc) in free fall. This is one of the simplest experiments in mechanics, though one of the most important ones, having been repeatedly carried out a...

Lunazzi, Jose Joaquin

2008-01-01

416

Balana Interativa: um software para auxiliar o desenvolvimento do raciocnio algbrico  

Microsoft Academic Search

The present study investigated an educational software, Interactive Scale (Balana Interativa), as a tool to develop algebraical concepts, particularly the notions of equivalence, equation and inequation. The research was conducted at a public school in Fortaleza, CE with ten mathematics teachers and the computer school teacher. Teachers participated in a training and meeting to discuss the software use. Researchers conducted

Monalisa de Abreu Leite; Karla Anglica; Silva do Nascimento

417

Bethke, Donna From: dbethke@som.umaryland.edu on behalf of UM SOM PTRS  

E-print Network

in the current week's issue. Thanks for sharing!!!!! Stay Connected University of Maryland School of Medicine, Department of Physical Therapy and Rehabilitation Science, 100 Penn Street, Allied Health Building, Baltimore

Weber, David J.

418

Bethke, Donna From: dbethke@som.umaryland.edu on behalf of UM SOM PTRS  

E-print Network

in the current week's issue. Thanks for sharing!!!!! Stay Connected #12;6 University of Maryland School of Medicine, Department of Physical Therapy and Rehabilitation Science, 100 Penn Street, Allied Health

Weber, David J.

419

Bethke, Donna From: dbethke@som.umaryland.edu on behalf of UM SOM PTRS  

E-print Network

contributions to the profession of physical therapy in any area clinical practice. Dr. Alon will deliver://www.websedge.com/videos/?s=Stroke/#/ Announcements Rehabilitation Science Research Seminar #12;5 Greetings! This week's seminar will feature a talk. Earhart, PT, PhD, Associate Professor Program in Physical Therapy, Department of Anatomy & Neurobiology

Weber, David J.

420

Um analista do comportamento olha para tratamentos tradicionais de pedfilos e estupradores  

Microsoft Academic Search

The paper discusses treatment of the behavior of rapists and pedophiles from a behavior analytic view point. We look at the treatment programs from the standpoint of the relation between the treatment environment and the conditions in which sexual offenses occur. Hence, we consider the relationship between the response treated in therapy and the response occurring in the non-treatment environment,

Joseph E. Spradlin; Kathy J. Saunders; Dean C. Williams; Jerry A. Rea

421

MRC-SPECT: A Sub-500 um Resolution MR-Compatible SPECT System for Simultaneous Dual-  

E-print Network

- Modality Study of Small Lab Animals 1Liang Cai, Z. M. Shen, J. C. Zhang, 4Chin-Tu Chen, 1,2,3L. J. Meng 1, University of Chicago. 2012 Small Animal SPECT Workshop, Tucson, AZ Table of Content Introduction Detector were obtained with a multiecho fast low angle shot (FLASH) sequence written by Professor Brad Sutton

Arizona, University of

422

O riso como expresso de um posicionamento na cidade: o encontro de Demcrito e Hipcrates  

Microsoft Academic Search

The Pseudo-Hippocratic letters relate the fictitious meeting between Democritus and Hippocrates. This document is the basis which allows us to think about how the hippocratic tradition and Democritus' philosophy treat the concepts of man's and city's health. This paper aims to show some aspects of the relationship between man and the city, given the concept of health present in the

Priscilla Gontijo Leite

2009-01-01

423

640x480 MCT 3- to 5-um snapshot focal plane array  

NASA Astrophysics Data System (ADS)

A 640 X 480 snapshot IRCMOS array with 25 micron pitch operating in the 3 - 5 microns range was fabricated and an image demonstrated at the Infrared Laboratory (LIR). The readout circuit with 2 pC charge handling capacity was designed and processed with a 1.2 micrometer design rules standard CMOS technology. Photovoltaic (PV) detectors were achieved by ion implantation in liquid phase epitaxy MCT layers and interconnected by indium bumps on the readout circuit. A description of the component is given and the main electro-optical characteristics are presented. The pixel operability is greater than 99.8% and a NEDT of 15 mK was measured at half dynamics. Excellent imagery has been obtained with this component operating at 77 K and f/2 optics.

Audebert, Patrick; Giotta, Dominique; Mottin, Eric; Rambaud, Philippe; Marion, Francois

1998-07-01

424

QUESTES SOCIO-POLTICAS DE CINCIA ATRAVS DA FICO CIENTFICA: UM EXEMPLO COM \\  

Microsoft Academic Search

Use of science fiction films in science teaching has been proposed by several authors. As discourses about science, built up from concrete socio-cultural contexts, films raise issues derived from social debates, revealing ideological positions concerned to science, technology and its relations to societal current problems. Such aspects make films particularly interesting as way to introduce sociopolitical discussions in classroom. Using

Lus Paulo Piassi; Maurcio Pietrocola

425

Handbook for Future Students University of northern British ColUmBia | 2 unbc.ca  

E-print Network

......................................................16 + Health Sciences...........................................18 + Nursing....................................................32 + Off Campus: Into the Wild...........................34 Life on Campus + Your Home Away From Home of northern British Columbia, UNBC is one of Canada's best small universities. We have a passion for teaching

Northern British Columbia, University of

426

Please fill in: Name/UM Registration # C380 Med Inn, SPC 5838  

E-print Network

) Heart failure Yes No e) Swelling in your legs or feet (not caused by walking) Yes No f) Heart arrhythmia of the following cardiovascular or heart problems? a) Heart attack Yes No b) Stroke Yes No c) Angina Yes No d (heart beating irregularly) Yes No g) High blood pressure Yes No h) Any other heart problem that you

Shyy, Wei

427

A 10 um Resolution Secondary Emission Monitor for Fermilab's Targeting Station  

SciTech Connect

Improvement in focusing the proton beam onto the antiproton production target necessitates the development of a higher resolution beam profile monitor. Two designs for the construction of a multiwire profile mointor grid are presented. The first is a conventional strung and tensioned Ti wire design. The second is a photo etched Ti grid of wires bonded to a ceramic substrate. Both have a central wire spacing of 125 {mu}m. The completed beam profile monitors are designed to operate in a 120 GeV beam pulse of 5 x 10{sup 12} protons with a 1.5{mu}s duration and will be installed in late 1993.

Hurh, P.; O'Day, S.; Dombrowski, R.; Page, T.; /Fermilab

1994-01-01

428

Modelamento, Construo, Instrumentao, Localizao, Simulao e Controle de um Veculo Areo  

E-print Network

matemático Formalismo de Euler-Lagrange (Lagrangiano) Leis de Newton Isaac Newton Leonhard Euler Joseph matemático Formalismo de Euler-Lagrange (Lagrangiano) Leis de Newton Isaac Newton Leonhard Euler Joseph

Williams, Brian C.

429

Comparison of OPO and Mark-III FEL for tissue ablation at 6.45 um  

Microsoft Academic Search

We have investigated the experimental consequences of two picosecond infrared lasers, both tuned to 6.45micrometers and focused on ocular tissue. The exposure conditions were comparable, other than pulse repetition rate, where an optical parametric oscillator\\/amplifier laser (OPA) system operates at a kilohertz and the Mark-III FEL at 3 gigahertz. In both cases, the peak intensity was near 2x1014 W\\/m2 and

Glenn S. Edwards; M. Shane Hutson; Susanne Hauger; John A. Kozub; Jin-Hui Shen; Charles Shieh; Katie Topadze; Karen Joos

2002-01-01

430

Sistema Tutor Inteligente integrado a Monitoria Estudantil para elaborao de um Assistente Virtual de Ensino Inteligente  

Microsoft Academic Search

This paper shows the project of extra activities carried on for students with support from Monitoring Aid, giving teachers a more complete vision about the cognitive situation of their students by the information system available on the Internet. The integration of this project to the formal architecture of Intelligent Tutoring Systems has obtained satisfactory results to teaching-learning in Computer area

Breno S. B. Assuno; Edelson S. Lopes; Vandor R. V. Rissoli

431

Classe hospitalar: aspectos da relao professor-aluno em sala de aula de um hospital  

Microsoft Academic Search

Hospital classes: aspects of teacher-student interaction in a hospital classroom Hospital classes were created to ensure continuity of learning for children and adolescents, making it easier for them to return to the school environment after their recovery. Through sessions of direct observation of teacher-student interactions in the hospital classroom, it was possible to note that the teacher's most frequent activities

Jos Gonalves Medeiros; Andria Ayres Gabardo

2004-01-01

432

ECOLDER: Editor Colaborativo de Diagramas de Entidades e Relacionamentos Integrado a um Ambiente Virtual de Aprendizagem  

Microsoft Academic Search

This article presents a web-based collaborative tool, named ECOLDER, which was integrated with Moodle virtual learning environment. It aims to enhance the processes of teaching and learning the data conceptual modeling, as well as allowing that these discipline practices could be expanded outside of the classroom environment. Resumo. Este artigo apresenta uma ferramenta colaborativa baseada na web, denominada ECOLDER, integrada

Amanda Almeida da Silva; Trcia Souto Santos; Jos Maria; N. David

433

Um Ambiente para Ensino de Programao com Feedback Automtico de Exerccios  

Microsoft Academic Search

The teaching-and-learning process of algorithms and computer programming still has a large number of difficulties. Learning Environments (LE) have been proposed to solve that challenge. One proposal is to use the LE's to solve the problem of following each student's step in the process of constructing algorithms. This paper presents a study about techniques of algorithms auto-marking that allows immediately

Mireille Pinheiro Moreira; Eloi Luiz Favero

434

Planeta ROODA 2.0: um olhar no desenvolvimento tecnolgico do ambiente virtual social de aprendizagem  

Microsoft Academic Search

The socialization of internet has been making it easier for people to access information and interact with each other, which was very difficult because of cultural or geographic limits. Therefore, Education has to be aware of such changes in society to remain up-to-date. This study proposes the technical reworking of an e-learning environment of Planeta Rooda, based on Web 2.0,

Patrcia Alejandra Behar; Cristina Alba Wildt Torrezzan; Augusto Simon

435

Socializao Parental e Valores: Um Estudo com Adolescentes Parental Socialization and Values: A Study with Teenagers  

Microsoft Academic Search

This study investigates the relations between the perception of parental practices of socialization and the teenager's values. Two thousand and four (2.004) teenagers of both sexes, from public and private schools aged between 10 and 18 were contacted. Two questionnaires were used: the Teenage Parental Socialization Scale and the Questionnaire of Psychosocial Values. The results reveal that the teenagers' perceptions

Raquel Moraes; Cleonice Camino; Luciane Cruz; Guarabira Brasil; Joo Pessoa

436

"I May Be Crackin', But Um Fackin": Racial Humor in "The Watsons Go To Birmingham--1963"  

ERIC Educational Resources Information Center

This article examines the utilization of racial humor in Christopher Paul Curtis' novel, "The Watsons Go To Birmingham--1963." The theoretical perspectives that inform the analysis include critical race theory and humor theory. The results of the analysis reveal that the use of humor in this book is influenced to a significant degree by race and

McNair, Jonda C.

2008-01-01

437

Eficcia e padres de utilizao da oxigenoterapia de deambulao experincia de um hospital universitrio  

Microsoft Academic Search

AimsTo determine patterns of ambulatory oxygen (AO) use among patients with chronic obstructive pulmonary disease (COPD) and interstitial lung diseases, and analyze the effects of this therapy on daily activities and quality of life (QoL).

T. Vieira; I. Belchior; J. Almeida; V. Hespanhol; J. C. Winck

2011-01-01

438

Teaching Advanced Concepts in Computer Networks: VNUML-UM Virtualization Tool  

ERIC Educational Resources Information Center

In the teaching of computer networks the main problem that arises is the high price and limited number of network devices the students can work with in the laboratories. Nowadays, with virtualization we can overcome this limitation. In this paper, we present a methodology that allows students to learn advanced computer network concepts through

Ruiz-Martinez, A.; Pereniguez-Garcia, F.; Marin-Lopez, R.; Ruiz-Martinez, P. M.; Skarmeta-Gomez, A. F.

2013-01-01

439

Einladung zur 4. Veranstaltung am 12. 03. 2012 um 19.00 Uhr im Super C,  

E-print Network

,,Fördervereins aachen_fenster ­ raum für bauen und kultur" Aachen, den 1.03. 2012 Die von der Initiative Aachen in der Planungsphase engagiert begleiteten Campusprojekte der RWTH Aachen: Innenstadt, West und Melaten werden Aachen im nächsten Jahrzehnt entscheidend verändern. An ihnen machen sich viele Hoffnungen fest

Borchers, Jan

440

UM SISTEMA BASEADO EM CONHECIMENTO PARA DIAGNSTICO, SOLUO E APRENDIZADO DE FALHAS EM CONTROLADORES LGICOS PROGRAMVEIS  

Microsoft Academic Search

Programmable Logic Controllers (PLC) have been widely used in the control of automated industrial processes. The diagnosis, solution and learning of PLC failures represent an important topic in automation. However, there are not many special- ized references about this issue and, besides, the lack of expert people has aggravated the problem. This paper aims at proposing an approach for the

MARCELO P. WERNECK; LUIZ E. SOUZA

441

Modelamento, Construo, Instrumentao, Localizao, Simulao e Controle de um Veculo Areo  

E-print Network

matemtico Formalismo de Euler-Lagrange (Lagrangiano) Leis de Newton Isaac Newton Leonhard Euler Joseph matemtico Formalismo de Euler-Lagrange (Lagrangiano) Leis de Newton Isaac Newton Leonhard Euler Joseph

Williams, Brian C.

442

250 um inner diameter hollow waveguide for Er:YAG laser radiation  

NASA Astrophysics Data System (ADS)

Advanced application of Er:YAG laser radiation in medical treatment requires a suitable, very precise delivery of this light to a target. In some cases (urology, cardiology, or endodontic treatments), thin waveguides are needed. Therefore a preliminary investigation was conducted with 250/360 ?m inner/outer diameter hollow glass waveguides. The waveguide has inner coating made from cyclic olefin polymer and silver layers. All delivery systems were simple and consisted of lens, protector, and the waveguide. The laser source was the Er:YAG system working in a free-running regime and generating radiation at 2.94 ?m wavelength. For testing, output laser energy up to 100 mJ with a repetition rate of 1 Hz was chosen. The output laser spatial profile was approximately TEM00 mode, so the structure changes behind the delivery system were readily detected. The energy delivery characteristics were also checked, and the transmission reached 77%. The maximum input fluence into the waveguide was 200 mJ/cm2, and no significant damages to waveguides were observed after the measurements.

N?mec, Michal; Jelnkov, Helena; Miyagi, Mitsunobu; Iwai, Katsumasa; Matsuura, Yuji

2009-02-01

443

Educacao Fisica Escolar: A Construcao de um Conceito (School Physical Education: The Construction of a Concept).  

ERIC Educational Resources Information Center

Seeks to understand school physical education praxis in light of the human development theories of Lev Vygotsky. Develops a methodology of teaching and a conception of learning that enables students to recognize physical education as a school discipline connected to a dynamic curriculum. (BT)

Colpas, Ricardo Ducatti

2000-01-01

444

Application of attenuated phase-shift masks to sub-0.18-um logic patterns  

Microsoft Academic Search

In this work, we explore the application of attenuated phase-shift masks (APSM) to sub-0.18 micrometers logic patterning. Particular attention is paid to proximity effects and the common process corridor between dense and isolated features, a key challenge of logic-level lithography. Using PROLITH simulation, we evaluate APSM performance as a function of mask transmission and stepper illumination mode. The optimum process

Michael Fritze; Peter W. Wyatt; David K. Astolfi; Paul Davis; Andrew V. Curtis; Douglas M. Preble; Susan G. Cann; S. Denault; David Chan; Joe C. Shaw; Neal T. Sullivan; Robert Brandom; Martin E. Mastovich

2000-01-01

445

FORMAO PARA MUDANA: CRIANDO UM AMBIENTE REFLEXIVO PARA O USO DAS MDIAS PEDAGGICAS NO PROCESSO EDUCACIONAL  

Microsoft Academic Search

This paper describes five (5) Junior High teachers in-service development process in a Presidente Prudente-SP-Brazil school during the years 2004 and 2005. The adopted method was fundamented in the reflecting about and in the action scheme and also in the development of projects of work to promote a Constructionist, Contextualized and Meaningful environment (CCS). The Information and Communication Technology (TIC)

Flaviana Santos Silva; Maria da Graa; Moreira da Silva

446

Distribution of benthic foraminifers (>125 um) in the surface sediments of the Arctic Ocean  

USGS Publications Warehouse

Census data on benthic foraminifers (>125 ?m) in surface sediment samples from 49 box cores are used to define four depth-controlled biofacies, which will aid in the paleoceanographic reconstruction of the Arctic Ocean. The shelf biofacies contains a mix of shallow-water calcareous and agglutinated species from the continental shelves of the Beaufort and Chukchi Seas and reflects the variable sedimentologic and oceanic conditions of the Arctic shelves. The intermediate-depth calcareous biofacies, found between 500 and 1,100 meters water depth (mwd), contains abundant Cassidulina teretis , presumably indicating the influence of Atlantic-derived water at this depth. In water depths between 1,100 and 3,500 m, a deepwater calcareous biofacies contains abundant Oridorsalis umbonatus . Below 3,500 mwd, the deepwater mixed calcareous/agglutinated biofacies of the Canada, Makarov, and Eurasian Basins reflects a combination of low productivity, dissolution, and sediment transport. Two other benthic foraminiferal species show specific environmental preferences. Fontbotia wuellerstorfi has a depth distribution between 900 and 3,500 mwd, but maximum abundance occurs in the region of the Mendeleyev Ridge. The elevated abundance of F. wuellerstorfi may be related to increased food supply carried by a branch of Atlantic water that crosses the Lomonosov Ridge near the Russian Continental Shelf. Triloculina frigida is recognized to be a species preferring lower slope sediments commonly disturbed by turbidites and bottom currents. INTRODUCTION At present, our understanding of the Arctic Ocean lags behind our understanding of other oceans, and fundamental questions still exist about its role in and response to global climate change. The Arctic Ocean is particularly sensitive to climatic fluctuations because small changes in the amounts of sea-ice cover can alter global albedo and thermohaline circulation (Aagaard and Carmack, 1994). Numerous questions still exist regarding the nature and timing of paleoclimatic events in the Arctic Ocean. In order to attempt to answer some of these questions, baseline studies are imperative. This report discusses the distribution of benthic foraminifers in surface sediment samples from 49 box cores (figs. 1 and 2, table 1) collected by the U.S. Geological Survey (USGS) with the assistance of the U.S. Coast Guard (USCG). A modern data set of benthic foraminiferal distribution is necessary for interpreting the paleoclimatic and oceanographic history of the Arctic Ocean.

Osterman, Lisa E.; Poore, Richard Z.; Foley, Kevin M.

1999-01-01

447

A manufacturable shallow trench isolation process for sub-0.2 um DRAM technologies  

Microsoft Academic Search

A highly manufacturable and defect-free shallow trench isolation (STI) process is demonstrated by using 64M DRAM as a sensitive monitor. In the STI flow, a special sequence of extra anneal (1100C) after corner oxidation (i.e., liner oxide) and an RTA (1000C) anneal after HDP CVD oxide deposition can result in a significantly higher yield in 64M DRAM by effectively reducing

W. Y. Lien; W. G. Yeh; C. H. Li; K. C. Tu; I. H. Chang; H. C. Chu; W. R. Liaw; H. F. Lee; H. M. Chou; C. Y. Chen; M. H. Chi

2002-01-01

448

Zum Auf und Ab des Meeresspiegels in Skandinavien: Langer Streit um Eustasie oder Isostasie  

NASA Astrophysics Data System (ADS)

The phenomenon of the rise of the Scandinavian shield during the Holocene and the concomitant fall in level of the Baltic Sea has been investigated for centuries. Already in medieval times, there were reports about the coastlines of the Gulf of Bothnia that are full of relevant observations. During the eighteenth century, scientists such as Celsius and Linnaeus collected observations such as these. The result was that the search for the possible explanations of this rise-and-fall phenomenon intensified. The generally favoured explanation was that there was an active sinking of sea level in the Baltic rather than an active rising of the land surface in Fennoscandia. This was because water was seen as mobile, in contrast to a terra firma". The relevant discussion was often emotional, and here, we try to illustrate it using material from the Geologenarchiv Freiburg (von Hoff, von Buch and Goethe). No more than a few decades later, it became obvious by the theory of Ice Age that both the sea level and the land could be mobile (eustatic sea level changesglacial isostasy). Additionally, of course, plate tectonics had some influence: Norway is situated at the western end of the Eurasian plate and is part of a passive continental margin. There are still open research problems, many of which can be addressed using modern methods of satellite-based geophysics and geodesy. Some other aspects as the permanent uplift trend of Scandinavia since the Cambrium or the rhythmic to and fro of magma in the upper mantle during the Pleistocene are mentioned.

Seibold, Eugen; Seibold, Ilse

2012-03-01

449

Exerccios Adicionais -Determinantes Observao: Estes exerccios so um complemento queles apresentados no livro. Eles foram  

E-print Network

apresentados no livro. Eles foram elaborados com o objetivo de oferecer aos alunos exercícios de cunho mais teórico. Nós recomen- damos fazê-los depois de ter feito os exercícios do livro proposto pela equipe de AL que B = A-1 . 4. Estude a demonstração da Regra de Cramer (Lema 6.20 do livro). Use a fórmula do lema

Lewiner, Thomas (Thomas Lewiner)

450

Helpful Tips for Graduation Day from the staff of the UM School  

E-print Network

to the Indoor Practice Facility if at all possible and tell your guests to do the same. The lines get pretty to the left after walking across the stage to receive your diploma cover. Graduate students wear yours to the left throughout. #12;Make sure you have your name card with you (the one we mailed you)! If you forget

Tchumper, Gregory S.

451

PERFIL DOS CONSUMIDORES DE TOMATE DE MESA EM UM HIPERMERCADO DE CAMPINAS - SP1  

Microsoft Academic Search

RESUMO: Atualmente o consumidor quem detm o poder, que a partir de maiores conhecimentos e informaes passa a exigir cada vez mais pela qualidade dos produtos a serem consumidos. Desta forma ele quem sinaliza os caminhos que as empresas alimentcias devem seguir para garantir satisfao dos clientes. Os agricultores tambm tm responsabilidade quanto qualidade dos produtos, devendo

CAROLINE ANDREUCCETTI; MARCOS DAVID FERREIRA; SYLVIO L. HONRIO; ANITA S. D. GUTIERREZ; MARCELO TAVARES

452

Movimentos sociais, sindicato e imigrao Um estudo sobre o movimento dos trabalhadores sem-documentos na  

E-print Network

que a autora contextualiza e problematiza a nomenclatura a partir da luta política dos trabalhadores uma data fundamental na história dos movimentos sociais e em particular das lutas dos imigrantes. Foi

Paris-Sud XI, Université de

453

Comportamento da Fundao de um Prottipo de Estrutura de Conteno em Solo Reforado com Geotxtil Notecido  

E-print Network

satisfatória as novas condições de trabalho. Com isso, para contribuir com o avanço no estado da arte, programou-se a execução, no pátio da Empresa Ober S.A, em Nova Odessa - SP, de uma série de oito protótipos

Zornberg, Jorge G.

454

Empirische Beziehungen zur Sauerstoffkoordination um Antimon(III) und Tellur(IV) in Antimoniten und Telluriten  

NASA Astrophysics Data System (ADS)

The strong variability of bond length between Sb(III) or Te(IV) and oxygen is correlated with distances to more distant oxygen atoms in the trans position. Closer approach of the trans-oxygen atom leads to lengthening of the bond in question. Hyperbolic functions represent suitable approximations for the correlations and give the bond lengths on the average within 0.04 . The distance relations are discussed for various limiting coordinations corresponding to 3, 4, and 5.

Trmel, M.

1980-11-01

455

Perfil perinatal dos recm-nascidos de um hospital universitrio da regio Sul do Brasil  

Microsoft Academic Search

Introduction: We have analyzed the data concerning the delivery of 766 newborns at the maternity ward of a school hospital in order to assess the perinatal conditions surrounding all births, with an emphasis on gestational age, birth weight, mode of delivery, birth conditions, and childbirth and newborn care. The study also aimed at identifying such pregnancy-related maternal variables as more

Jos Aparecido Granzotto

456

Percepo e julgamento da retaliao organizacional: construo e validao fatorial de um instrumento  

Microsoft Academic Search

Perception and judgment of organizational retaliation: construction and factorial validation of an instrument. This article presents two studies about the construction and validation of an instrument to measure the perception and the judgment of the organizational retaliation. In the first study, the scale initially composed by 31 items was applied to a sample of 187 subjects. Data were submitted to

Helenides Mendona; Dulce Pires Flauzino; lvaro Tamayo; Maria das Graas Torres Paz

2004-01-01

457

Limnological features after a flushing event in Parano Reservoir, central Brazil Caractersticas limnolgicas aps um \\  

Microsoft Academic Search

Aim: Parano Reservoir was subjected to an intense eutrophication during at least three decades (1968 to 1998) due to higher human occupation of the catchment area and nutrients inflow derived to inadequate sewage treatment. The occurrence of large blooms of Microcystis aeruginosa, extended areas of aquatic macrophytes (Eichhornia crassipes), and frequent fish kills were observed during this period. Nutrient loading

C. Padovesi-Fonseca; Bloco L

458

Process margin enhancement for 0.25-um metal etch process  

Microsoft Academic Search

This study evaluates electron beam stabilization of UV6, a positive tone Deep-UV (DUV) resist from Shipley, for a 0.25 micrometer metal etch application. Results are compared between untreated resist and resist treated with different levels of electron beam stabilization. The electron beam processing was carried out in an ElectronCureTM flood electron beam exposure system from Honeywell International Inc., Electron Vision.

Chung Y. Lee; Wei Wen Ma; Eng H. Lim; Alex T. Cheng; Raymond Joy; Matthew F. Ross; Selmer S. Wong; Trey Marlowe

2000-01-01

459

Um mecanismo automtico para busca de parmetros de tcnicas de classificao utilizando algoritmos genticos  

Microsoft Academic Search

Some classification techniques demand parameter configuration in the training process. The performance of the generated classifiers depends on the parameter values. Therefore, it is necessary to search for the set of values that maximize the classifier's performance. This search process turns out to be a hard task if performed manually. This work proposes to automate this process using genetic algorithms.

Suelen Marconsini Loureiro; Letcia Rosetti Margoto; Rodrigo Mendona Queiroga

460

Um Estudo Comparativo entre Tr^es Geradores de Numeros Aleatorios  

E-print Network

´isticos como Simu- lated Annealing, Algoritmos Gen´eticos e GRASP, tornando-se, assim, de suma im- port´atica da PUC-Rio. Os geradores de n´umeros aleat´orios s~ao utilizados em diversos algoritmos probabil´iricos utilizados para avaliar a qualidade dos geradores. Quest~oes pr´aticas como velocidade do algoritmo

Endler, Markus

461

DESENVOLVIMENTO DE UM ALGORITMO GENTICO PARA MINERAO DE DADOS NA AGRICULTURA DE PRECISO  

Microsoft Academic Search

The great volume of data generates in Precision Agriculture can be analyzed in a more efficient way through the use of techniques of Data Mining, existing among other, the technique based on the analogy with the processes of natural selection and evolutionary genetics: Genetic Algorithms. The present work aims the development of a genetic algorithm to determine the behavior of

A. M. GUIMARES; L. M. VRIESMANN; M. G. CANTERI; A. CATANEO; J. P. MOLIN

462

From the Chair Dear Alumni and Friends of the UM Psychology Department,  

E-print Network

(below) became the Department Chair. Rich will be remembered for many modernizations within countless hours developing and perfecting interactive databases and process management tools that help a relationship with you, our alumni; such as the newsletter and the annual tailgate event. The entire department

Michigan, University of

463

Nice of you to join us. University of British ColUmBia  

E-print Network

the government of BC passed the University Act, creating UBC. ... and initiated you into the UBC Convocation. yes-born life. to keep the magic happening, you don't have to do much. this little book will be your guideAe two or more female grads Welcome to the club. this is hoW the magic started: You crossed the stage

Pulfrey, David L.

464

Fatores que afetam os investimentos em Tecnologia de Informao: O caso de um Terminal de \\  

Microsoft Academic Search

Port terminals logistics' management is supported basically in information management. Some Brazilian container terminals have invested large amounts in last generation IT (Information Technology) to manage and offer quality services. The objective of this research is identifying factors that affect i nvestments in IT at a p ort company using an d combining the dimensions: strategic variables (MAADA and BECKER,

Rafael Mello Oliveira

2000-01-01

465

U-M researchers find driver of breast cancer stem cell metastasis  

Cancer.gov

Researchers at the University of Michigan Comprehensive Cancer Center have found that a cancer gene linked to aggressive spread of the disease promotes breast cancer stem cells. The finding implies a new way to target the behavior of these lethal cells. The finding involves the cancer gene RhoC, which has previously been shown to promote metastasis of many types of cancer. RhoC levels increase as breast cancer progresses and high levels of RhoC are associated with worse patient survival.

466

Construo de um catlogo de aglomerados abertos para estudo da dinmica da estrutura espiral da Galxia  

NASA Astrophysics Data System (ADS)

Os aglomerados abertos so objetos de grande valor para o estudo da dinmica da Galxia devido esses objetos terem uma faixa de idade relativamente ampla. O trabalho visa estudar a dinmica da estrutura espiral da Galxia principalmente atravs do uso desses aglomerados, uma vez que o estudo da cinemtica desses objetos fundamental para esse objetivo. Nosso grupo trabalha no sentido de construir uma base de dados de aglomerados abertos contendo coordenadas, distncia, idade, movimentos prprios e velocidades radiais e j disponibiliza uma nova verso do catlogo de aglomerados abertos o qual uma compilao de edies anteriores, principalmente Lynga (1987), Mermilliod (1995) e ESO-B (Lauberts 1982). Nossa amostra possui cerca de 1630 aglomerados, mas nem todos os parmetros acima citados foram determinados em sua totalidade. Para determinarmos esses parmetros, derivamos as cores intrnsecas das estrelas membro de cada aglomerado a partir de seus tipos espectrais (busca feita no SIMBAD) obtendo assim o excesso de cor individual. A distribuio dos excessos de cor foi ento utilizada para derivarmos o avermelhamento mdio para cada aglomerado. De maneira similar, os tipos espectrais foram usados para estimar as magnitudes absolutas, e com as magnitudes absolutas e aparentes determinamos a respectiva distribuio do mdulo de distncia e finalmente a distncia. Para determinar as idades foram confeccionados os diagramas cor-magnitude das estrelas de cada aglomerado onde foram superpostas a Seqncia Principal de Idade Zero (ZAMS). Superpomos a ZAMS de Schmidt-Kaler e iscronas de composio solar. Essas iscronas foram usadas para determinao das idades dos aglomerados. Uma vez que no temos ainda resultados finais, apresentamos ento alguns diagramas cor-magnitude os quais foram usados para determinao, principalmente, da distncia e idade dos aglomerados.

Carlos, I. M.; Lpine, J. R. D.

2003-08-01

467

Atributos qumicos e fsicos de um Argissolo Vermelho-Amarelo em sistema integrado de produo agroecolgica  

Microsoft Academic Search

The objective of this study was to evaluate the influence of agroecological management systems on physical and chemical attributes of an Udult soil. The following areas were selected: conventional tillage (corn\\/beans); no tillage (eggplant\\/corn); consortium of passion fruit\\/Desmodium sp.; fig cultivation; and an agroforestry system (AFS). The undisturbed soil samples were taken from two layers (0-5 and 5-10 cm) and

Maria Ribeiro da Silva

2009-01-01

468

TEMAS LIVRES FREE THEMES O processo de construo de mapas de risco em um hospital pblico  

Microsoft Academic Search

The paper presents a discussion about the experience of building a risk map by workers in a public hospital, in Rio de Janeiro city, resting on concepts of occupational health surveillance, total quality and biosafety. It goes from the first step to persuade the workers and managers, to identify the potential sources of risk in the work environment, the elaboration

Evandro Chagas; Yara Hahr Marques Hkerberg; Maria Anglica Borges; Brani Rozemberg; Paulo Marcelo Tenrio Cotias

469

DETERMINAO DE MAPA DE QUALIDADE DE UM RESERVATRIO UTILIZANDO SISTEMA FUZZY  

Microsoft Academic Search

Resumo - A principal tarefa da engenharia de reservatrios o desenvolvimento e gerenciamento de campos de petrleo a fim de determinar a melhor estratgia de produo e recuperao de leo e gs. Dependendo do caso, procura-se buscar a maximizao da produo de hidrocarbonetos e de indicadores econmicos, ou realizar uma comparao entre projetos para que se trabalhe com projetos

L. Nakajima; C. C. Mezzomo; D. J. Schiozer; I. R. Guilherme

470

Aprender a ser: Desenvolvimento pessoal e profissional de professores atravs de um projecto1 2  

Microsoft Academic Search

In the last decade, School has been facing several changes and challenges. Teachers are constantly trapped between the Educational System changes and classroom daily routine and, very often, they don't know how to deal with all those situations. So, we believe it is very important to facilitate teachers' development of mechanisms and actions that allow them passing beyond those different

Rita Carmo; Snia Mendes; Margarida Csar

471

Desenvolvimento de um Sistema para Anlise da Variabilidade da Freqncia Cardaca  

E-print Network

), Departamento de Engenharia Elétrica (ENE), Faculdade de Tecnologia (FT), Universidade de Brasília (UnB), Brasil Medicina (FMD), Universidade de Brasília (UnB), Brasil, 70910-090 Fone: +55 61 307 2274, Fax: +55 61 273

Carvalho, João Luiz

472

Visualizao de Msica Distncia de um Gesto Joo Tiago Gomes Maria Beatriz Carmo Ana Paula Cludio  

E-print Network

Motion e desde então surgiram aplicações em diversos domínios, como, por exemplo, na área da medicina ou esta abordagem só possível com recurso à tecnologia (hardware e software) que existe hoje. ? importante

Cláudio, Ana Paula

473

Bethke, Donna From: dbethke@som.umaryland.edu on behalf of UM SOM PTRS  

E-print Network

and Nerve" in Philadelphia on March 22-25, 2014. The title of her talk was, "The neurologic upper extremity Meetings (CSM) in Las Vegas, NV last month: https://www.youtube.com/watch?v=BnU_YHanEu8&feature

Weber, David J.

474

Application of 2-um wavelength holmium lasers for treatment of skin diseases  

NASA Astrophysics Data System (ADS)

Theoretical and experimental analysis of the efficiency of application of 2 micrometers pulsed holmium laser for cosmetic and plastic surgery and dermatology is carried out. Preliminary experiments were carried out on rats. Solid state 2 micrometers pulsed laser was allowed to operate in free running mode with pulse energy up to 1.5 J and pulse repetition rate up to 5 Hz. To deliver emission to the object a flexible quartz fiber without further focusing of 2.5 m in length and 400 micrometers of the core diameter was used. The effect of the different power density emission on the skin was studied. The second stage was the study of the influence of 2 micrometers emission on human skin. The results of the removal of hemangioma, papilloma, telangiectasia, nevus, nevus acantholytic, xanthelasma palpebral, verruca, chloasma, pigmental spots, tattoos, etc. are presented. Precision, simplicity, efficiency, and the high cosmetic effect of these operations is noted.

Shcherbakov, Ivan A.; Klimov, Igor V.; Tsvetkov, Vladimir B.; Nerobeev, Alexander I.; Sadovnikova, Lija B.; Eliseenko, Vladimir I.

1994-09-01

475

Discovery of Radio Jets in z~2 ULIRGs with Deep 9.7um Silicate Absorption  

E-print Network

Recent Spitzer observations have revealed a substantial population of z~2 ULIRGs with deep silicate absorption (\\tau_{9.7}>1). This paper reports a 20cm radio study of such a sample to elucidate their physical nature. We discover that a substantial fraction (40%) of deep silicate absorption ULIRGs at z~2 are moderately radio-loud with L_{1.4GHz}=10^{25}--10^{26}WHz^{-1}. This is in strong contrast with z1. In addition, we observe radio jets in two of our sources where one has a double lobe structure ~200kpc in extent, and another shows a one-sided jet extending ~90kpc from the nucleus. The likely high inclination of the latter, coupled with its deep silicate absorption, implies the mid-IR obscuration does not share an axis with the radio jets. These sources are highly obscured quasars, observed in the transition stage after the birth of the radio source, but before feedback effects dispel the ISM and halt the black hole accretion and starburst activity.

Anna Sajina; Lin Yan; Mark Lacy; Minh Huynh

2007-08-02

476

Gradientes de abundncias em galxias espirais  

NASA Astrophysics Data System (ADS)

Gradientes de abundncias obtidos atravs de observaes de regies H II tm um papel importante no estudo de formao e evoluo de galxias espirais. Determinaes diretas de abundncias somente so obtidas quando linhas de emisso sensveis temperatura eletrnica (e.g., [O III]l4363) so detectadas. Infelizmente estas linhas so fracas ou no observadas em regies H II de baixa excitao. Nestes casos mtodos empricos so utilizados para estimar as abundncias qumicas. Entretanto, diferentes mtodos tm produzido diferentes estimativas de gradientes de abundncias. Neste trabalho, ns construmos modelos de fotoionizao com o objetivo de descrever diagramas de diagnsticos construdos com dados publicados de algumas galxias espirais normais e barradas. Comparaes entre nossas estimativas de abundncias e de outros mtodos mostram que quando no h acordo entre eles, nossos modelos superestimam as abundncias de O/H e N/H por um fator de 0.3 dex em relao a estimativas diretas de abundncias, e por fator de 0.2 dex em relao a outros mtodos empricos. A origem da produo de nitrognio nas galxias estudadas discutida.

Dors, O. L.., Jr.; Copetti, M. V. F.

2003-08-01

477

Espectroscopia infravermelha de ncleos ativos de galxias: resultados adicionais  

NASA Astrophysics Data System (ADS)

Apresentamos resultados parciais de um levantamento espectroscpico na regio do infravermelho prximo (NIR) realizado em 30 ncleos ativos de galxias (AGN), incluindo vrios objetos selecionados do catlogo PG com z de at 0.55. O objetivo estudar a natureza do contnuo observado e as condies fsicas do gas emissor. Todas as fontes de tipo 1 apresentam uma mudana na inclinao do contnuo na regio de 1.2mm, associada ao trmino da contribuio do contnuo emitido pelo AGN e ao incio da contribuio do contnuo emitido pela poeira quente atribuda ao trus que rodeia a fonte central. O ndice espectral associado segunda contribuio varia apreciavelmente de objeto para objeto. Este resultado comparado com distribuies espectrais de energia preditas por modelos de toroides para testar a validez do modelo unificado. A partir das linhas de FeII observado nos espectros deriva-se, pela primeira vez nessa regio espectral, um template emprico de FeII para estudar a intensidade e a origem dessa emisso. A intensidade do FeII estudada em conjunto com aquela da regio visvel e comparada s predies de modelos tericos que incluem fluorescncia de Lya, excitao colisional e auto-fluorescncia como mecanismos dominantes de exitao. Encontra-se que os dois primeiros processos dominam na formao do espectro de FeII observado. Indicadores de avermelhamento, entre eles Brg/Pab, Pab/Pag, Pab/Pad e [FeII] 1.257/1.644 mm so utilizados para mapear a distribuio de poeira nas regies emissoras de linhas. Encontra-se valores de extino Av~3 associados ao ltimo indicador e valores significativamente menores (Av~1.5) para os restantes, o que sugere que o [FeII] se forma em uma regio separada da maior parte do gs emissor de linhas estreitas.

Rodrguez Ardila, A.; Viegas, S.; Pastoria, M. G.

2003-08-01

478

Condies fsicas em galxias HII  

NASA Astrophysics Data System (ADS)

Galxias HII so galxias ans de baixa luminosidade que apresentam alta taxa de formao estelar. Seus espectros so dominados por intensas linhas de emisso devido fotoionizao pela presena de um grande nmero de estrelas do tipo O e B. Ns apresentamos um catlogo espectrofotomtrico de 111 galxias HII observadas no telescpio 1.52m do ESO com o espectrgrafo Boller & Chivens. Determinamos propriedades estatsticas da amostra e derivamos condies fsicas (temperatura eletrnica, densidade eletrnica) e abundncias qumicas. Para algumas galxias, fomos tambm capazes de resolver espacialmente regies de formao estelar individuais e determinar propriedades espectroscpicas para estas regies separadamente, o que nos permitiu avaliar as flutuaes das condies fsico-qumicas dentro das galxias HII. Em particular, vimos que apesar das galxias HII apresentarem formao estelar espalhada ao longo do corpo da galxia, so objetos quimicamente homogneos. A fim de estudar a evoluo temporal dos objetos durante o tempo de vida das estrelas ionizantes construimos tambm alguns diagramas relacionando razes de linhas de emisso com a largura equivalente de Hb (EW(Hb)). Para interpretar tais diagramas utilizamos modelos de fotoionizao para populaes estelares integradas. Conclumos que as galxias HII no correspondem a simples idia de um burst instantneo envolvido por um gs opaco aos ftons ionizantes e com densidade constante. As relaes observadas entre razes de linhas e EW(Hb) podem ser melhor compreendidas se as galxias HII apresentarem populaes estelares mais velhas, que contribuem para o contnuo ptico observado.

Kehrig, C.; Telles, E.; Cuisinier, F.

2003-08-01

479

Modelo bifsico no-lineal de elementos finitos para el anlisis mecnico de tejidos biolgicos * Parte II: Implementacin numrica y validacin  

Microsoft Academic Search

Con base en la forma dbil de las ecuaciones no lineales que describen el comportamiento mecnico de materiales bifsicos, presentadas en la Parte I, en esta segunda parte se describe la implementacin numrica y solucin de las ecuaciones para problemas con simetra axial mediante el mtodo de Newton y un procedimiento de integracin paso a paso en el tiempo. Adicionalmente

Jos Jaime Garca; Daniel Humberto Corts

2006-01-01

480

Validacin del Cuestionario de Variables de Interaccin Psicosocial (VIP): hacia un modelo de tratamiento de las conductas adictivas guiado por la personalidad  

Microsoft Academic Search

ObjectiveThe personality can be studied at three levels: clinical (disorders), traits and the level of interactive variables. There are valid instruments for the measurement of both first, but we do not have any that explores in a combined way the interactional level. We propose a model of personality guided treatment for the addictive behaviours in the direction of the one

E. J. Pedrero Prez; M. Prez Lpez; S. de Ena de la Cuesta; C. Garrido Caballero

2005-01-01

481

Revista Iberoamericana de Automatica e Informatica industrial 00 (2013) 19 www.elsevier.es/RIAI Modelo matematico y control difuso para el seguimiento de trayectorias del AUV  

E-print Network

aleza, , Spartacus Gomariza , Carles Batlleb aGrupo SARTI, Departament d'Electr`onica, Universitat Polit`ecnica deInstitut d'Organitzacio i Control y Departament de Matem`atica Aplicada 4, Universitat Politecnica de a la hora de dise~nar un control lineal que, principalmen- te, tienen su origen en la linealizaci

Batlle, Carles

2013-01-01

482

DISEO DE UN MODELO DE VENTAS A TRAVS DE INTERNET PARA LAS PyMES TURSTICAS DE MOCHIMA, ESTADO SUCRE (VENEZUELA)1  

Microsoft Academic Search

In time of recession, the expert talks about amounts related with the fall of the internal product brute, the unemployment, among others. The situation that have Venezuela today, join to the high inflation, and its coin devaluation; the scenery to customer and companies suppliers

Karen Elisa; Requena Mago; Jos Francisco Muoz Rengel

483

Modelo Crosscultural de Pasantias para Lideres de la Educacion: Cooperacion entre Estados Unidos y Venezuela (Designing an Effective School Administrator Internship Program: United States and Venezuela Cooperation).  

ERIC Educational Resources Information Center

A model was developed of an internship program designed to give valuable cross-cultural experience to school administrators in training at universities in the United States and Venezuela. A naturalistic approach was used to develop the model. Leading school administrators and educational leadership theorists in both countries were interviewed by

Serafin, Ana Gil; Thompson, Eugene W.

484

Diseo y Desarrollo de un Modelo Experimental para la Auditoria de Sistemas de Gestin de Calidad Total de Empresas del Sector de Telecomunicaciones  

Microsoft Academic Search

Nowadays, the organizations are looking for the excellence with the objective to excel in their industrial sector, improvement their products, increase the satisfaction of their customers and have high incomes. This has promoted the implementation and management of quality systems in the organizations, especially in the telecommunications sector, which increases to high velocity, and where only the best ones achieve

Ana Mara; Zambrano Ibarra; Daniel Vicente Serdn Ruiz

485

MODELO DE PROGRAMACION LINEAL PARA ASISTIR EN EL DISEO DE SISTEMAS DISTRIBUIDOS DE TRATAMIENTO DE EFLUENTES LINEAR PROGRAMMING MODEL TO ASSIST THE DESIGN OF DISTRIBUTED WASTEWATER TREATMENT SYSTEMS  

Microsoft Academic Search

One of the procedures available for the synthesis of distributed wastewater treatment networks is based on an extension of the concepts and methodology derived from heat recovery pinch technology. The minimum flowrate target and the design of a wastewater treatment subnetwork are obtained within the pinch technology methodology in a sequential manner in two different steps. In this paper a

J. M. Zamora-Mata; R. Hernndez-Surez; J. Castellanos-Fernndez

2004-01-01

486

Un modelo para el control de calidad academica de los textos de instruccion a distancia (A Model for Controlling the Academic Quality of Distance Education Texts).  

ERIC Educational Resources Information Center

In response to the need for a system of control over the academic quality of distance education texts, this article proposes a methodological model based on criteria that evaluate written materials based on their instructional quality, design, and production. A discussion and figures evaluate educational aspects of content, communication,

Bolanos-Mora, Guiselle; And Others

1992-01-01

487

A Multilateral Exchange Rate Model (Un modèle de taux de change multilatéral) (Un modelo multilateral de tipos de cambio)  

Microsoft Academic Search

The general equilibrium model described in this paper was developed to facilitate the assessment of the trade effects of simultaneous changes in the exchange rates of several countries that are closely associated through foreign trade. The analysis of the trade effects of such a currency realignment requires that account be taken of the simultaneous interaction among prices, incomes, and spending

Jacques R. Artus; Rudolf R. Rhomberg

1973-01-01

488

Comparacion de Modelos de Educacion Sexual en El Conocimiento y Cambio de Actitudes en Practicas Sexuales por Alumnos de Nivel Superior en La Region De Caguas, Puerto Rico  

ERIC Educational Resources Information Center

In opposition to the Sexual Education Traditional Model (SETM) that is used in the state schools of Puerto Rico, the Health Beliefs Model (HBM) appears. It facilitates a curricular design that improves the ability of the students to respond to the group pressure by means of attitudes that stimulate sexual conducts of smaller risk of propagation of

Juan, Vallejo Ramos L.

2012-01-01

489

LA NANOTECNOLOGA Y LA GNR COMO NUEVO PARADIGMA CIENTFICO: EL MODELO MECANICORGANISCISTA. UNA PERSPECTIVA MATERIALISTA SOBRE LA FILOSOFA DE LA MENTE  

Microsoft Academic Search

A new paradigm, which already found an intuitive formulation in S. Butler, and which has developed with the Theory of automata of Von Neumann and the Cybernetics of Wiener, is consolidated in the present days due to the progress of the nanotechnology. The GNR, from a multidisciplinary approach, gives us a new instrument of scientific observation and the same time

Sergio Jimnez Cruz

490

DEVELOPMENT OF A MODEL FOR IN VITRO CULTURE OF Vallisneria americana Michx. Desarrollo de un modelo de cultivo in vitro para Vallisneria americana Michx  

Microsoft Academic Search

An exploratory experimental design was developed to establish a model for Vallisneria americana Michx. following conventional in vitro culture procedures for aquatic vegetation. The design included five experiments with stages of presterilization or washing with 0.1% Tween 20 R , sterilization with NaClO and poststerilization of explants (leaf base, rhizome, caulinar apex and seeds), and culture in monophasic or biphasic

V Ruiz-Carrera; AJ Snchez

2008-01-01

491

Uso de biomateriales con fines neurorregenerativos. Aplicacin en modelo experimental de traumatismo craneoenceflico Use of biomaterials in neural regeneration. Application in an experimental model of head injury  

Microsoft Academic Search

Objetives: To evaluate the performance of polymeric biomaterials based on hyaluronic acid and their useful- ness in the central nervous system as support for cell differentiation and survival. Material and methods: With the purpose of assessing the viability of polymeric cannulated scaffolds, in vitro and in vivo experiments were made involving implantation in the Wistar rate brain cortex. Immunocytoche- mical

Soria J M; Martnez Ramos C; Andrades J A; Barcia C; Monlen Pradas M

2009-01-01

492

VALORACIN DEL RIESGO DE CONTAMINACIN DE LAS AGUAS SUBTERRNEAS POR NITRATOS MEDIANTE EL USO DE LOS MODELOS PARAMTRICOS DRASTIC Y SINTACS  

Microsoft Academic Search

To evaluate the risk of pollution of the underground water by nitrates in a portion of the Pianura Apuana (bounded by the towns Montignoso, Massa and Carrara), two parametric models: DRASTIC (acronym of Deep water; Recharge net; Aquifer media; Soil media; Topography; Impact of vadose zone; Conductivity, hydraulic) and SINTACS (acronym of Soggiacenza, Infiltrazione, effetto di autodepurazione del Non-saturo, Tipologa

F. P. Nicoletti; R. Spandre

493

Diseo de un modelo para el anlisis de la sostenibilidad en la Cuenca Hidrogrfica del ro Caron en la Guayana Venezolana  

Microsoft Academic Search

The sustainability of the Caron river basin, located in the Venezuelan Guiana was evaluated by using indicators and indexes that gave account of its intervention due to the small-scale mining activities. There were designed statistical models that showed the relationships between variables that make clear the degree of environmental deterioration. There were built scenarios where the river basin sustainability was

Jorge Paolini Ruiz; J. Paolini

1970-01-01

494

LA UTILIZACIN DE UN MODELO DE PLANIFICACI~N DE UNIDADES DIDCTICAS: EL ESTUDIO DE LAS DISOLUCIONES EN LA EDUCACI~N SECUNDARIA  

Microsoft Academic Search

SUMMARY The planning of didactic units is an element of reflection for teachers which allows the integration of both their scientific knowledge and their experiential skills. This study focus on the implementation of a planning model based on five tasks: the analysis of scientific content and the learning content which is derived from it (conceptual, procedural and attitudinal), the analysis

SNCHEZ BLANCO; VALCRCEL PREZ

495

78 FR 30399 - United States v. Anheuser-Busch InBev SA/NV, Grupo Modelo S.A.B de C.V.; Proposed Final Judgment...  

Federal Register 2010, 2011, 2012, 2013, 2014

...conditions entry upon the Court's determination that the proposed Final Judgment is...C. 16(e)(1). In making that determination, the court, in accordance with the...that the court deems necessary to a determination of whether the consent judgment...

2013-05-22

496

Modelos tericos que nos ayudan a comprender el gobierno de las sociedades cooperativas, una apuesta por el enfoque de los stakeholders  

Microsoft Academic Search

En la actualidad, el entorno competitivo es cada vez ms incierto y complejo. Las caractersticas de los mercados actuales hacen que sea cada vez ms difcil conseguir una ventaja competitiva sostenible en el tiempo para la empresa, por lo que hay que innovar en formas de gestin y de gobierno para ser competitivo. De esta manera, se est produciendo un

Cristina Pedrosa Ortega

2009-01-01

497

Analise dinamica da tendencia para o equilibrio num modelo simples: a Segunda Lei de Newton e a Segunda Lei da Termodinamica  

E-print Network

We relate Newton's Second Law with the Second Law of Thermodynamics through the analysis of a simple model introducing a dynamic pressure concept. From this analyses we can clarify some conceptual problems resulting from several concepts of heat and work on the First Law of Thermodynamics.

Rodrigo de Abreu

2002-10-21

498

MODELOS ARX PARA PREDECIR LA TEMPERATURA DEL AIRE DE UN INVERNADERO: UNA METODOLOGA ARX MODELS FOR PREDICTING GREENHOUSE AIR TEMPERATURE: A METHODOLOGY  

Microsoft Academic Search

A procedure is presented for obtaining a dynamic linear model of auto-regression with exogenous variables (ARX) for predicting the behaviour of the air temperature inside a greenhouse. The ARX are dynamic mathematical models derived from the theory of Systems Identification. The input variables of the model were air temperature, solar radiation, wind velocity affecting the ventilation area of the greenhouse

Irineo L. Lpez-Cruz; Abraham Rojano-Aguilar; Waldo Ojeda-Bustamante; Raquel Salazar-Moreno; Ingeniera Agrcola

499

Comparacion de modelos de Educacion Sexual en el conocimiento y cambio de actitudes en practicas sexuales por alumnos de nivel superior en la region de Caguas, Puerto Rico  

NASA Astrophysics Data System (ADS)

In opposition to the Sexual Education Traditional Model (SETM) that is used in the state schools of Puerto Rico, the Health Beliefs Model (HBM) appears. It facilitates a curricular design that improves the ability of the students to respond to the group pressure by means of attitudes that stimulate sexual conducts of smaller risk of propagation of the Sexually Transmitted Diseases (STD). In addition, it provides activities to increase the self-esteem, the communication and the decision making. This investigation had the intention to compare the SETM and the HBM in the increase of knowledge and change of attitudes of high risk of propagation of the STD using a validated questionnaire (Agency of the United States for the International-USAID Development), named "Endesa 2007" and, adapted to Puerto Rico by the Dra.Marta Collazo to a sample of students between the 17 and 19 years of 2 state schools of San Lorenzo, as a pretest, and, selected by convenience. Then, a 10 hours training was administered to half of the students using the SETM to STD and condom use lessons. The other half of the students received additional lessons using the HBM. Finally, both groups took the questionnaire again as a posttest. The sample of students, in average, did not reach the knowledge and basic levels of attitudes towards the STD in the pretest. This reflected 2 possible implications on the SETM. In first place, that the way in which the STD is implemented as part of the Sexual Education curriculum is inefficient. Secondly, the possibility that the acquired information or attitudes does not have permanence. Culminated the questionnaire, the HBM increase the knowledge of the STD in 0.41 points (average) over the SETM. There was not a significant difference between both models, in attitudes, implying that both models are equally effective. The findings suggests that the HBM is more effective increasing the knowledge on the STD, but equally effective than the SETM in attitude change for the Puerto Rican youth.

Juan, Vallejo Ramos L.

500

Algoritmos Genticos Difusos para el Ajuste del Modelo de Cole-Cole Fuzzy Genetic Algorithms for Cole-Cole Model Adjustment  

Microsoft Academic Search

In this paper, it is showed the design of a fuzzy g enetic algorithm which is real coded. This algorithm was used for th e Cole-Cole equation adjustment. This equation is used to model and study the behavior of electrical bioimpedance spectroscopy cu rves. The algorithm was developed with Matlab 7 and it was ran 550 times in order

SANDRA MILENA CAICEDO; WILLIAM ARISTIZBAL; JERNIMO ROJAS DAZ; JULIO CSAR CHAVARRO; SERAFN BETANCURT