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Sample records for alma da terra

  1. Embriaguez e males da alma: entre a mania e a melancolia

    Directory of Open Access Journals (Sweden)

    Paulo José Carvalho da Silva

    2013-03-01

    Full Text Available Este artigo examina as relações estabelecidas no campo da medicina da alma entre a embriaguez e os males da alma. Parte da atitude ambivalente em relação ao vinho sustentada desde a Antiguidade para mostrar como no século XVIII explicações baseadas nas dinâmicas psicofisiológicas e tratamentos que faziam apelo à ordenação da razão com a vontade para o domínio dos apetites são substituídos por uma concepção propriamente patologizante do abuso da bebida.

  2. A dor de amor na medicina da alma da primeira modernidade

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    Paulo José Carvalho da Silva

    2008-09-01

    Full Text Available Este artigo discute o problema da dor de amor nos diferentes campos do saber que compunham a medicina da alma da primeira modernidade. Deu-se especial destaque às reflexões do médico francês Jacques Ferrand (1575-1623 sobre o caráter instável, ilusório e faltoso do amor. Conclui-se que a dor de amor exige pensar as relações entre os afetos e o corpo, além de desafiar as próprias categorias diagnósticas e os tratamentos tradicionais.

  3. TERRA.

    Science.gov (United States)

    Locke, Kirsty

    1997-01-01

    TERRA (Teaching Ecological Responsibility, Recreation, and Adventure) is an integrated, one-semester, four-course program in environmental science, environmental English, independent geography, and outdoor education for grades 11 and 12 in New Liskeard, Ontario. Program activities include outdoor adventure, environmental research projects,…

  4. O impossível regime das paixões da alma

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    Paulo José Carvalho da Silva

    2008-03-01

    Full Text Available Este artigo pretende analisar o lugar das paixões da alma no ideal de saúde conforme a obra Âncora medicinal para conservar a vida em saúde (1721 do português Francisco da Fonseca Henriques, médico do rei D. João V. As paixões da alma eram consideradas um dos aspectos determinantes do regime de saúde. Elas eram relacionadas ao excesso, aos limites extremos do corpo e à morte.

  5. SÓCRATES E O CUIDADO DE SI OU A TERAPÊUTICA DA ALMA

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    Raimundo Araújo dos Santos

    2008-03-01

    Full Text Available Esse artigo pretende ser uma abordagem simples, na verdade, um resumo, recolhido dostextos de Platão sobre o auto-conhecimento e o cuidado de si. Esses são os elementos queconstituem a base do saber ético iniciado por Sócrates e o ponto de partida do que chamamosterapêutica da alma.

  6. CAP_USO: Um sistema especialista para determinação da capacidade de uso da terra

    OpenAIRE

    Monica Luri Giboshi; Luiz Henrique Antunes Rodrigues; Francisco Lombardi Neto

    1999-01-01

    O objetivo deste trabalho foi desenvolver um sistema especialista (CAP_USO) para determinar a capacidade de uso da terra, visando auxiliar e dar mais agilidade ao processo de tomada de decisão para o planejamento do uso da terra. O sistema foi desenvolvido utilizando um software conhecido como C Language Integrated Production System (CLIPS), desenvolvido pela National Aeronautics and Space Administration (Nasa). Para determinar a capacidade de uso, foram considerados doze fatores limitantes a...

  7. CAP_USO: Um sistema especialista para determinação da capacidade de uso da terra

    Directory of Open Access Journals (Sweden)

    Monica Luri Giboshi

    1999-05-01

    Full Text Available O objetivo deste trabalho foi desenvolver um sistema especialista (CAP_USO para determinar a capacidade de uso da terra, visando auxiliar e dar mais agilidade ao processo de tomada de decisão para o planejamento do uso da terra. O sistema foi desenvolvido utilizando um software conhecido como C Language Integrated Production System (CLIPS, desenvolvido pela National Aeronautics and Space Administration (Nasa. Para determinar a capacidade de uso, foram considerados doze fatores limitantes ao uso da terra, além da declividade. A validação do sistema mostrou que o CAP_USO foi rigoroso ao determinar as classes de capacidade de uso por considerar a declividade em conjunto com os fatores que apresentam maior restrição ao uso da terra. A técnica de sistemas especialistas mostrou ser eficaz para a classificação de terras segundo a sua capacidade de uso, facilitando a manipulação e o processamento das informações necessárias à sua determinação.

  8. Uso da terra e a qualidade microbiana de agregados de um Latossolo Vermelho-Amarelo

    OpenAIRE

    Rogério Melloni; Eliane Guimarães Pereira Melloni; Lucas Lopes Vieira

    2013-01-01

    A maioria dos estudos relacionados à agregação do solo associa o efeito de manejos ou tipos de uso da terra ao teor de matéria orgânica. No entanto, a avaliação de microrganismos e seus processos, feita diretamente em estruturas indeformadas do solo, permite maior entendimento do real efeito de diferentes tipos de manejos exercidos sobre esse. Assim, o objetivo deste trabalho foi avaliar modificações impostas por diferentes tipos de uso da terra (pastagem, mata de eucalipto, mata com araucári...

  9. Determinação da idade à puberdade fisiológica em borregas da raça Churra da Terra Quente nascidas no Inverno

    OpenAIRE

    Azevedo, Jorge; Correia, Teresa Montenegro; Almeida, José Carlos; Valentim, Ramiro; Fontes, Paulo; Coelho, Alípio

    2001-01-01

    Este trabalho teve como principal objectivo estudar a idade à puberdade fisiológica de um grupo de borregas da raça Churra da Terra Quente, nascidas no início do Inverno e sujeitas às condições de maneio da Universidade de Trás-os-Montes e Alto Douro (UTAD). Neste sentido, em Vila Real, mais precisamente na Quinta de Prados, pertencente à UTAD, 24 borregas da raça Churra da Terra Quente, nascidas em Janeiro, foram seleccionadas para a realização deste estudo. Estas borregas alcançaram a puber...

  10. Platão e a cidade justa: poetas ilusionistas e potências da alma

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    Rachel Gazolla

    2007-12-01

    Full Text Available A censura que Platão faz à poesia na República apresenta dois ângulos que serão investigados neste texto: de um lado, a relação com a mímesis, considerada como necessária para o conhecimento pela via da phantasía; de outro, a relação do gênero epithymético da alma, com a crítica mais específica exposta no livro X.The censorship Plato directs against poetry in the Republic is investigated from two points of view in this article: on one hand, the perspective of mimesis, which is seen as necessary to achieve knowledge, through phantasía; on the other, the issue of the epithymetic genre of soul, which is part of the more specific criticism developed in book X.

  11. Uso da terra e a qualidade microbiana de agregados de um Latossolo Vermelho-Amarelo

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    Rogério Melloni

    2013-12-01

    Full Text Available A maioria dos estudos relacionados à agregação do solo associa o efeito de manejos ou tipos de uso da terra ao teor de matéria orgânica. No entanto, a avaliação de microrganismos e seus processos, feita diretamente em estruturas indeformadas do solo, permite maior entendimento do real efeito de diferentes tipos de manejos exercidos sobre esse. Assim, o objetivo deste trabalho foi avaliar modificações impostas por diferentes tipos de uso da terra (pastagem, mata de eucalipto, mata com araucária, plantio convencional com cenoura e plantio convencional com abóbora em atributos químicos (pH, Ca, Mg, Al, P, K, S e matéria orgânica e físicos (diâmetro médio geométrico - DMG, diâmetro médio ponderado - DMP, densidade do solo e densidade de partículas e na qualidade microbiana (atividade e carbono microbianos, micélio extrarradicular total de fungos micorrízicos arbusculares e quociente metabólico - qCO2 de classes de tamanho de agregados (I- 4,00 a 2,36 mm; II- 2,36 a 1,18 mm; III- 1,18 a 0,60 mm; IV- 0,60 a 0,30 mm; e V- 0,30 a 0,15 mm de um Latossolo Vermelho-Amarelo, no sul de Minas Gerais. Os resultados evidenciaram que os tipos de uso da terra interferem na formação, no tamanho e na qualidade microbiana dos agregados. Em agregados menores (classes IV e V, há redução de micélio extrarradicular de fungos e biomassa microbiana e aumento da atividade e do quociente metabólico, independentemente do tipo de uso da terra. A qualidade microbiana de agregados maiores do solo sob mata de araucária, com tamanho entre 0,60 e 4,00 mm (I, II e III, é semelhante a todas as classes de tamanho de agregados do solo sob mata de eucalipto, enquanto a de agregados menores de 0,60 mm (IV e V é semelhante a todas de tamanho de agregados da pastagem. Agregados do cultivo convencional, diferentemente dos demais tipos de uso da terra, apresentam baixa qualidade microbiana e relação com a fertilidade do solo.

  12. Música nas sociedades indígenas das terras baixas da América do Sul: estado da arte

    OpenAIRE

    Rafael José de Menezes Bastos

    2007-01-01

    Durante os últimos trinta anos, a etnomusicologia das terras baixas da América do Sul experimentou um forte crescimento. O fato está contribuindo para que a região venha a deixar de ser, definitivamente, uma das mais desconhecidas do planeta quanto às suas músicas, embora detentora de algumas das descrições mais antigas do mundo sobre música "primitiva". Um número importante de monografias e outros tipos de textos foram produzidos no período sobre a etnomusicologia da área, especialmente no B...

  13. Avaliação do projeto Cédula da Terra (1997-2002

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    João Márcio Mendes Pereira

    2012-08-01

    Full Text Available O artigo avalia o projeto-piloto Cédula da Terra, inspirado no modelo de "reforma agrária assistida pelo mercado" do Banco Mundial, implementado a partir de 1994 sob formatos diferenciados, em países marcados por graves problemas agrários e fortes tensões sociais no campo, como Colômbia, África do Sul, Guatemala e Filipinas. No Brasil, o Cédula foi implantado em cinco Estados da federação e foi aclamado pelo Banco como uma experiência exitosa e exemplar. A partir dele surgiram outros programas similares em maior escala. O artigo interroga se o diagnóstico do Banco Mundial de fato se justifica e se o Cédula constituiu mesmo uma referência viável a ser replicada em maior escala no Brasil.The article evaluates the pilot-project Cédula da Terra, inspired on the "market-assisted land reform" model of the World Bank, implemented since 1994 under various formats in countries marked by the deep agrarian problems and strong social tensions in the countryside, such as Colombia, South Africa, Guatemala and the Philippines. In Brazil, the project was implemented in five states of the federation and was acclaimed by the Bank as a successful and textbook experience. From it were developed other similar programs on a large scale. The article questions if the World Bank's diagnostics are indeed justifiable and if the Cédula da Terra was really a viable reference to be replicated in Brazil in larger scale.

  14. Peri physeos psyches: sobre a natureza da alma no Fedro de Platão

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    Maria Aparecida de Paiva Montenegro

    2010-12-01

    Full Text Available No passo 245c do Fedro de Platão, no contexto do segundo discurso de Sócrates (no qual ele compõe sua palinodia dirigida a Eros, o filósofo chama atenção para a importância de "se tornar explícita a natureza da alma, dos seus estados e atos, assim como indagar se esta natureza é humana ou divina". Pretendo mostrar que Platão, nesse diálogo, tenta fundamentar a natureza mista da alma: em parte racional em parte passional. Essa ambiguidade constitutiva mostra-se diretamente correlacionada àquelas referentes às formas de Amor, Loucura e Retórica abordadas ao longo do diálogo, à medida que estas podem ser tanto perniciosas quanto prodigiosas, a depender do modo como se as conduz. Nessa perspectiva, meu propósito é defender a presença, na filosofia pensada por Platão, de elementos passionais imprescindíveis ao sucesso de sua atividade, cabendo ao filósofo alcançar, por meio de uma formação apropriada, a maestria para reverter aquilo que pode mergulhá-lo na ignorância e, consequentemente, na escravidão e na infelicidade, naquilo que justamente irá conduzi-lo na direção oposta: a do amor à Sabedoria.In Plato's Phaedrus 245-c, when Socrates delivers his second speech (in which he composes his palinodia addressed to Eros, the philosopher calls attention to the importance of "first understanding the truth about the nature of the soul, divine or human, by examining what it does and what is done to it". I intend to point out that in this dialogue, Plato tries to found the mixed composition of the soul: partly rational, partly passionate. This constitutive ambiguity seems to be directly related to those different kinds of Love, Madness and Rhetoric examined in the dialogue, inasmuch as they could be either beneficial or harmful, depending on the way they are managed. Therefore, my purpose is to point that regarding philosophy as conceived by Plato, the appealing of passionate elements are quite indispensable for its successful

  15. Avifauna e uso da terra: o caso do Parque Natural de Montesinho

    OpenAIRE

    Castro, José; Reino, L.; Gómez Sal, Antonio

    1997-01-01

    Apresenta-se uma possível utilização da informação dos atlas de avifauna como instrumentos de apoio à gestão de áreas de alta diversidade biológica. O atlas de avifauna do Parque Natural de Montesinho recolhe a informação relativa a um total de 119 espécies, de aves referenciadas, em 48 quadrículas de 5 por 5 quilómetros. A relação entre a avifauna e os sistemas de utilização da terra que a sustenta estimou-se por correlações canónicas (CCA - ter Braak, 1986). Uma análise de cl...

  16. As Ciências da Terra e a mundialização das sociedades

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    Umberto G. Cordani

    1995-12-01

    Full Text Available De acordo com os princípios da Agenda 21, o principal documento resultante da unced-92, a sociedade sustentável do futuro deverá mostrar um desenvolvimento econômico equilibrado, no mundo todo, em harmonia com os sistemas de suporte da vida, em nosso planeta. As Ciências da Terra têm um papel crucial, visto que elas têm a responsabilidade da busca e do gerenciamento dos recursos minerais e energéticos, da conservação, do gerenciamento dos solos e da água, do monitoramento contínuo dos processos dinâmicos do Sistema Terra e da prevenção e mitigação dos desastres naturais. Solidariedade social em nível global é necessária para o alcance futuro de uma sociedade sustentável realmente equitativa e preocupada com a justiça social. Entretanto, as tendências atuais da globalização, sob a égide dos grandes conglomerados transnacionais, são as de dar menor prioridade face a assuntos como preservação ambiental e desenvolvimento econômico do Terceiro Mundo. Tais tendências precisam ser invertidas, e os cientistas e profissionais das Ciências da Terra devem tornar-se proativos, em comunicar-se com políticos, educadores e o público em geral, no sentido de planejar adequadamente as atividades de desenvolvimento, evitando possíveis impactos desastrosos para o ambiente.Following the principles contained in the Agenda 21, the main agreement reached during the unced-92, the future sustainable society shall exhibit an equitable socio-economic development, all over the world, in harmony with the life support systems of our planet. The Earth sciences have a crucial role, because they have the responsibility of the search, provision and management of mineral and energetic resources, the conservation and management of soils and water, the continuous monitoring of the dynamic processes of the Earth system, and the prevention and mitigation of natural disasters. Solidarity among people is needed in order to achieve a truly equitable

  17. As grandes transformações das plantas ao longo da história da terra

    OpenAIRE

    Mendão, Ana Sofia Nobre

    2007-01-01

    Dissertação de mestrado em Geologia para o ensino A paleobotânica é a ciência que tem por objectivo o estudo e caracterização das plantas fósseis. Pretende conhecer e reconstituir as formas vegetais desaparecidas e as floras que povoaram o nosso planeta, compreender as transformações que foram ocorrendo no mundo das plantas e nos ambientes em que viveram e fazer a integração dessa informação com vista à caracterização da história geológica da Terra. Questões sobre a origem d...

  18. O estatuto político da amizade: A Alma do Osso, de Cao Guimarães

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    Rafael de Almeida

    2013-06-01

    Full Text Available A partir do conceito de amizade proposto por Giorgio Agamben, este ensaio reflete, em uma interface entre estética e política, acerca das relações de poder presentes em A Alma do Osso (Cao Guimarães, 2004. O maior relevo é dado ao modo que o cineasta partilha, por meio do filme, sua existência com o ermitão Dominguinhos da Pedra, bem como as reverberações que isso garante à forma do documentário.

  19. Economia política da disputa por terras em Minas Gerais

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    Ari Francisco de Araujo Junior

    2008-09-01

    Full Text Available O artigo estuda os determinantes da probabilidade de ocorrência de conflitos de terra, ocupações e assentamentos nos municípios mineiros. Os resultados apontam para a importância de fatores econômicos e políticos. Aparentemente, militantes pró-reforma agrária se adequam ao ciclo político, causando menos conflito em municípios governados por aliados. Por sua vez, a pobreza e o elevado crescimento arrefecem o ímpeto desses militantes.The article analyzes the determinants of the probability of dispute over land (conflicts, occupations and settlement projects in the Brazilian state of Minas Gerais. Through the use of a logit model, we found that the main influences are political and economical ones. Apparently, the behavior of the agrarian reform's supporters follows the political incentive, with fewer occurrences of conflicts in towns governed by political allies. By other hand, the economical determinants - degree of poverty and the economic growth - have negative impacts on it.

  20. A Poética de Manoel de Barros: uma sabedoria da terra

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    Ligia Savio

    2004-01-01

    Full Text Available Este artículo se refiere a la obra poética poética del brasileiro Manoel de Barros (1916. Su objetivo es presentar algunas características de su poesía en referencia a los libros Gramática Expositiva do Cháo e Concerto a céu aberto para solos de ave. El análisis está refrendado con entrevistas al autor consideradas como epitextos de carácter metafórico complementarios a su obra.El ejercicio poético de Barros es inseparable a su palabra fuertemente arraigada en la vidaNeste trabalho, analisam-se dois livros do poeta brasileiro Manoel de Barros imagens de extrema sensorialidade, volta-se para a terra e para a natureza, espaço onde o homem redescobre o sentido de tudo e encontra um novo lugar para si mesmo. Manoel de Barros incorpora a seu fazer poético recursos contemporâneos e , em golpes de pura intertextualidade, traz para seus poemas a presença tanto de criadores da tradição artística européia quanto de autores renomados da Língua PortuguesaThis article deals with the poetic work of the brazilian author Manoel de Barros (1916. His aim is to present some characteristics of his poesóa in reference to the books Grammatical Expositiva do Cháo and Concerto a céu aberto para solos de ave. The analysis is authenticated with interviews to the author considered as epithets of metaphorical character supplementary to his work. Barros’ poetic exercise is inseparable to his declaration strongly rooted in life

  1. A Corrida por Terras

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    Paula Simas de Andrade

    2013-07-01

    Full Text Available PEARCE, Fred. The Land Grabbers - The New Fight over Who Owns the World. Boston: Beacon Press, 2012. 326 p. [Uso da terra rural, Propriedade real terras estrangeiras, propriedade Rural, investimento estrangeiro]. ISBN 978-0-8070-0324-4.

  2. TURISMO NO POVOADO DE TERRA CAÍDA/INDIROBA/SE: Do individual ao comunitário

    OpenAIRE

    Maria Geralda de Almeida; Lício Valério Lima Vieira

    2011-01-01

    Resumo: O propósito deste artigo é o de discutir a introdução do turismo rural no povoado Terra Caída no município de Indiaroba, em Sergipe. Especificamente, pretendeu-se caracterizar os aspectos físicos e culturais que sustentam a prática do turismo local e identificar as estratégias utilizadas pela comunidade para inserção na prática do turismo. Para o desenvolvimento deste trabalho foram realizadas pesquis...

  3. Música nas sociedades indígenas das terras baixas da América do Sul: estado da arte

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    Rafael José de Menezes Bastos

    2007-10-01

    Full Text Available Durante os últimos trinta anos, a etnomusicologia das terras baixas da América do Sul experimentou um forte crescimento. O fato está contribuindo para que a região venha a deixar de ser, definitivamente, uma das mais desconhecidas do planeta quanto às suas músicas, embora detentora de algumas das descrições mais antigas do mundo sobre música "primitiva". Um número importante de monografias e outros tipos de textos foram produzidos no período sobre a etnomusicologia da área, especialmente no Brasil e a partir de 1990, assim como tentativas de comparação regionais e sub-regionais. Também uma quantidade significativa de monografias e estudos comparativos sobre a região, feitos durante o período por antropólogos com outras especializações que não a etnomusicológica, apontou para a música - em conexão típica com as demais artes, a cosmologia, o xamanismo e a filosofia - como um domínio cujo conhecimento é estratégico para a compreensão da região. O quadro resultante desses esforços é promissor e está necessitando de análise, tarefa fundamental na direção da projeção de novas pesquisas. Este texto, dividido em duas partes, aproxima tal tarefa, centrando-se na produção escrita. Somente de passagem ele leva em conta as produções fonográfica, videográfica e similares. Na primeira parte do texto, levanto a literatura produzida no período sobre a música na região, assim como suas características. Na segunda, com base na literatura reconhecida, reflito sobre as principais marcas da música, e lanço hipóteses de trabalho para investigações futuras.The last thirty years have seen a remarkable growth in the ethnomusicology of the South American lowlands. The region has emerged from relative obscurity - a state in which it languished for decades, despite possessing some of the world's oldest descriptions of 'primitive' music - through the publication of a wide variety of texts on the musical production of its

  4. Efeito da cobertura vegetal sobre a pérola-da-terra (Hemiptera: Margarodidae) na cultura da videira = Effect of cover crops on brazilian ground pearl (Hemiptera: Margarodidae) in vineyards

    OpenAIRE

    Marcos Botton; George Wellington Bastos de Melo; Odoni Loris Pereira de Oliveira; Ismael Onzi

    2010-01-01

    O uso da cobertura vegetal em vinhedos é uma prática empregada paraminimizar a erosão e melhorar as qualidades químicas e físicas do solo. Neste trabalho, foi avaliado o efeito de coberturas vegetais sobre a população da pérola-da-terra Eurhizococcus brasiliensis (Hemiptera: Margarodidae) na cultura da videira. No primeiro experimento, o vinhedo foi mantido sem cobertura vegetal por meio da aplicação trimestral do herbicida glifosato comparado com o uso de vegetação espontânea, durante o ano,...

  5. Cronologia e impacto ambiental do uso da terra na Microbacia Hidrográfica do Ceveiro, em Piracicaba, SP

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    FIORIO PETERSON RICARDO

    2000-01-01

    Full Text Available Este trabalho objetivou avaliar a cronologia e o impacto ambiental do uso da terra na Microbacia Hidrográfica do Ceveiro (MHC, nos anos de 1962, 1965, 1978 e 1995. Utilizou-se a fotointerpretação e geoprocessamento, o que permitiu uma rápida e eficiente integração entre os dados levantados. Os solos da área são basicamente Litossolos e Podzólicos Vermelho-Amarelos. A cultura anual, que em 1965 chegou a ocupar 42% da área da microbacia, em 1995 ocupava 0,15%. Nesse mesmo período, o plantio da cana-de-açúcar passou de 16% para 66%, sendo esta cultura a principal causa da diminuição das culturas anuais na microbacia. O maior aumento do plantio da cana-de-açúcar ocorreu de 1978 a 1995, caracterizando, assim, a influência dos incentivos governamentais para o seu cultivo. As pastagens e os reflorestamentos também contribuíram para a expansão do plantio da cana-de-açúcar, com uma diminuição em área de 48% das pastagens e 42% do reflorestamento. As áreas de mata nativa e urbana apresentaram um aumento de 1962 a 1995. O impacto ambiental na MHC tem como indicador a represa da Vila de Artemis, que, de 1978 a 1995, diminuiu sua área em 50%, em decorrência do assoreamento.

  6. Usos da terra e alterações sociais em zonas rurais: caso dos Cortiços Trás-os-Montes

    OpenAIRE

    Coelho-Silva, José; Rodrigues, Orlando; Baptista, Fernando O.

    2006-01-01

    Cortiços, freguesia do concelho de Macedo de Cavaleiros, situada no Interior Norte de Portugal, seguiu nos últimos 50 anos uma dinâmica social comum à generalidade das áreas do Interior Norte e Centro. O presente trabalho tem como objectivo efectuar a primeira aproximação às consequências que a alteração social e económica provocou nos usos da terra. A descrição da alteração é realizada com recurso à modelação da dinâmica dos usos. A modelação da alteração dos usos da terra ...

  7. Composição florística da floresta estacional decídua montana de Serra das Almas, CE, Brasil Flora of seasonal deciduous montane forest at Serra das Almas, Ceará State, Brazil

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    Jacira Rabelo Lima

    2009-09-01

    Full Text Available No domínio semi-árido brasileiro, a flora das bacias sedimentares ainda é pouco conhecida, mas os levantamentos já existentes indicam que há grande heterogeneidade florística e fisionômica. Mesmo áreas geográficas próximas podem apresentar dissimilaridade florística. Visando testar esta hipótese, a composição florística e o espectro biológico da floresta estacional decídua de Serra das Almas, estado do Ceará, foram analisados e comparados com os de 14 áreas sedimentares no Nordeste. Foram encontradas 104 espécies e 39 famílias em 1 ha analisado. Fabaceae, Euphorbiaceae, Erythroxylaceae e Myrtaceae foram as famílias com maior riqueza e fanerófitos a forma de vida predominante (87%. Arbóreas e arbustivas representaram 72% das espécies, trepadeiras 15%, subarbustos 6% e herbáceas 7%. A análise de agrupamento da composição dos fanerófitos, usando o índice de Jaccard e as médias de grupo a posteriori, indicou a formação de grupos florísticos entre áreas geográficas mais próximas. Porém, não foi significativo pelo teste de Mantel, o que demonstra a ocorrência de alta heterogeneidade florística mesmo entre áreas geográficas próximas. A flora da floresta da Serra das Almas apresentou maior semelhança com as formações encontradas no planalto da Ibiapaba.In the Brazilian semi-arid region, the flora in the sedimentary basins has been poorly studied, but the few surveys already done indicate great floristic and physiognomic heterogeneity. Even neighboring sites may be floristically different. To test this hypothesis, the floristic composition and the biological spectrum of the seasonal deciduous forest at Serra das Almas, Ceará, was analyzed and compared to those of 14 other northeastern Brazil sedimentary areas. A total of 104 species belonging to 40 families were found at the 1 ha site. Fabaceae, Euphorbiaceae, Erythroxylaceae and Myrtaceae were the families with the most species and phanerophytes the main

  8. Utilização de sistema de informação geográfica na avaliação do uso da terra em Botucatu (SP

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    J. B. T. Rodrigues

    2001-09-01

    Full Text Available Foi utilizado o SIG-IDRISI, com o objetivo de verificar a adequação do uso da terra em 1997/98, na parte inicial da Bacia do Rio Pardo, Botucatu/Pardinho (SP, visando à obtenção de subsídios para o planejamento adequado do uso da área. As classes e subclasses de capacidade de uso foram determinadas de acordo com o Sistema de Classificação da Capacidade de Uso das Terras. As terras da área estudada foram discriminadas como: classe VIe, terras susceptíveis à erosão (90,49%; classe Va, terras planas, não-sujeitas à erosão, limitadas por excesso de água (3,48%; classe IVe, terras severamente limitadas por risco de erosão (0,50%; classe IIIa, terras planas com excesso de água (3,34%; classe IIIe, terras com declividade moderada e deflúvio rápido, riscos severos de erosão (1,32%; e classe IIe, terras produtivas, com risco ligeiro a moderado de erosão (0,87%. Pela análise conjunta da capacidade de uso e do uso atual das terras, verificou-se que 89,28% das áreas não apresentaram conflito de utilização; 2,24% estavam cultivadas com culturas anuais e perenes, adequação para tal uso, e 8,48% da área com pastagens deveria ser substituída por reflorestamento e, ou, preservação ambiental.

  9. Classificação da capacidade de uso das terras da Microbacia do Riacho Una, Sapé, PB Classification of land use capacity of micro basin of Una stream in Sapé, PB, Brazil

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    Izaque F. C. Mendonça; Francisco Lombardi Neto; Ricardo A. Viégas

    2006-01-01

    A crescente expansão das atividades agropecuárias sem a consideração das potencialidades e limitações das terras, constitui fonte potencial de degradação do meio ambiente. Neste trabalho, objetiva-se avaliar o meio físico das terras da microbacia hidrográfica do Riacho Una, Sapé, PB, a partir da classificação de capacidade de uso das terras. A área se localiza na porção leste do Estado da Paraíba, entre as coordenadas geográficas: 35º 08' 16" e 35º 15' 12" de longitude, a oeste de Greenwich e...

  10. Distribuição da população e cobertura da terra: o lugar das Áreas Protegidas no Pará, Brasil em 2010

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    Álvaro de Oliveira D’Antona

    2015-12-01

    Full Text Available Resumo O objetivo deste artigo é analisar a distribuição da população do Pará, a partir de dados do Censo Demográfico 2010 associados a dados de uso e cobertura da terra do TerraClass, dispostos em uma grade estatística. Verifica-se o papel de 113 Áreas Protegidas (AP - 46 Terras Indígenas, 51 Unidades de Conservação de Uso Sustentável e 16 Unidades de Conservação de Proteção Integral - no gradiente rural-urbano do ponto de vista populacional e em relação aos usos-coberturas da terra nelas existentes. Utilizando um Sistema de Informações Geográficas, os dados relativos às APs, ao uso e cobertura da terra e os censitários foram incorporados à grade estatística. O relacionamento espacial dos planos de informação nas células indica que a população do estado é bastante concentrada, uma tendência que se reproduz nas Áreas Protegidas (o coeficiente de Gini para a distribuição dos domicílios é superior a 0,9. As APs configuram-se como áreas menos populosas e mais florestadas em comparação ao restante do estado. Apesar da presença de extensas porções sem domicílios ocupados e da maior extensão de florestas do Pará (57%, identificam-se nestas áreas usos urbanos associados a outros usos e coberturas da terra. Os resultados indicam que as dinâmicas populacionais e as mudanças nos usos e cobertura da terra estão relacionadas de forma mais ampla, estimulando a reflexão sobre a urbanização e as mudanças no uso e cobertura da terra de forma mais integrada.

  11. DETERMINANTES DA ADOÇÃO DE SISTEMAS DE USO DA TERRA EM PÓLOS DE PRODUÇÃO AGROPECUÁRIA NO ESTADO DO ACRE, AMAZÔNIA BRASILEIRA

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    Santos, Jair Carvalho Dos; Braga, Marcelo Jose; Homma, Alfredo Kingo Oyama

    2008-01-01

    A expansão da agricultura e da pecuária tem sido considerada como a principal causa do desmatamento que se processa na Amazônia. A decisão de escolha do sistema de uso da terra é um elemento determinante dos níveis de desmatamento e fatores relacionados às características da família e Ao ambiente socioeconômico antecedem as decisões de adoção desses sistemas. O objetivo desse estudo foi identificar os condicionantes da adoção dos diferentes sistemas de uso da terra nos principais pólos de pro...

  12. Terra Fria, Terra Quente – um romance de costumes

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    Encarnação, José d'

    2015-01-01

    Recensão do livro «Terra Fria Terra Quente», de Maria José Corrêa Pinto. Salienta-se o facto de constituir um romance de costumes, pois dá a conhecer a vida da cidade de Chaves nos derradeiros anos da II Grande Guerra, demorando-se na descrição de tradições transmontanas e, também, dos costumes da tribo moçambicana dos Macuas.

  13. Um pacto pela terra: a crise ecológica na agenda da Teologia

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    Brustolin, Leomar Antônio

    2008-01-01

    Full Text Available O artigo reflete sobre a relação entre Teologia e Ecologia procurando interpretar as questões da crise que incide na relação do trinômio pssoa-ambiente-sagrado. Propõe-se uma nova postura do ser humano para com a natureza, a partir da tradição judaico-cristã, na qual a preservação e o cuidado da criação dependem da visão kairológica do tempo e noção sabática do repouso. Enfatiza o papel dos cristãos na tarefa de reconciliar o ser humano com o mundo criado.

  14. Estudo da variabilidade dos nitratos num solo tipo terra roxa-misturada

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    F. C. Verdade

    1951-12-01

    Full Text Available From a study of the variation of nitrates in the soil known as terra roxa misturada (mixed purple soil, the following conclusions were drawn : a The nitrate content of this soil reveals a periodic variation through the year. The same kind of variation is expected in the majority of S. Paulo soils, because the climate, with minor exceptions, is fairly uniform over the State. b As nitrification proceeds at a higher rate in the hot wet (September-May than in the cool dry season (May-September, nitrates accumulate in the soil during the first period and disappear in the second. However, as an exception to the above rule, there appeared to be a fall in nitrates during December. This may have been due, either to leaching by rain, or to absorption by weeds, then in their growing period in the experimental fields. Since inorganic nitrogenous fertilisers do not generally give good results in the State of S. Paulo, when applied at the beginning of the rainy season, it is logical to attribute the decrease in nitrogen content to leaching, although the investigation did not lead to a conclusive explanation. c This study did not support the view of an upward migration of salts in our soils during the dry months, since a steady level of nitrate content was observed during this period. d Although the author was able to establish an association between nitrate losses and rainfall, it was not possible to determine the relation quantitatively.

  15. O meio físico e o uso da terra no município de Araxá - MG

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    Maria Beatriz Brandão Rocha

    2010-08-01

    Full Text Available Com o objetivo de compreender as relações entre o uso da terra e os aspectos físicos do município de Araxá - MG, este trabalho utilizou folhas topográficas do IBGE de 1970, imagens do satélite CCD/CBERS 2 de abril de 2005 e o mapeamento Geomorfológico da Bacia Hidrográfica do Médio e Alto Paranaíba. A análise de cartas topográficas na escala de 1:100.000 e sua interpretação a partir dos temas curvas de nível, drenagem e limites do município permitiram elaborar os mapas temáticos da Declividade do Terreno e Hipsometria. A interpretação das imagens de satélite, através da análise visual, possibilitou classificar os objetos da cena, dando origem ao Mapa de Uso da Terra de 2005. O mapeamento Geomorfológico da Bacia Hidrográfica do Médio e Alto Paranaíba elaborado na escala de 1:250.000 pela equipe do Laboratório de Geomorfologia e Erosão dos Solos (LAGES, da Universidade Federal de Uberlândia, deu origem ao Mapa Geomorfológico de Araxá - MG. A partir da análise dos dados, pode-se verificar que na maior parte do município predominam as declividades superiores a 8%. Há um predomínio das altitudes entre 900 e 1200m. O grau de entalhamento dos vales varia de fraco a forte e a dimensão interfluvial varia de média a pequena. Foram identificadas e mapeadas 11 categorias de uso da terra. Os dados oriundos dos mapas de Declividade do Terreno, Hipsometria, Uso da Terra e Geomorfológico, e de sua tabulação cruzada (cruzamento de mapas, dois a dois possibilitaram avaliar a adequabilidade do uso da terra em função do meio físico. Concluiu-se que as características do meio físico influenciaram o uso da terra no município de Araxá, visto que os terrenos com altas declividades, associados a rochas mais resistentes ao intemperismo, são ocupados predominantemente por vegetação natural, ao passo que terrenos com baixas declividades, onde as rochas são menos resistentes ao intemperismo, possuem maior ocupação antr

  16. Mecanismos de abertura do sulco e da adubação nitrogenada em arroz de terras altas

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    Vagner do Nascimento

    2013-12-01

    Full Text Available A cultura do arroz adapta-se pouco ao sistema plantio direto (SPD em razão da maior compactação da camada superficial do solo, devido ao intenso tráfego de máquinas e não mobilização do solo. Nesse caso, o mecanismo utilizado na semeadora para a abertura dos sulcos com a finalidade de deposição do adubo pode ter grande importância para facilitar a penetração das raízes e aumentar a porosidade do solo. Diante disso, propôs-se este estudo com o objetivo de avaliar o desenvolvimento e a produtividade do arroz de terras altas em sistema plantio direto, em razão de mecanismos de distribuição do adubo na semeadura e de doses de N em cobertura, em Selvíria, Mato Grosso do Sul. O delineamento experimental utilizado foi em blocos casualizados, utilizando-se um esquema fatorial 2 x 6, constituído por mecanismos de distribuição do adubo (haste escarificadora e disco duplo e de doses de N em cobertura (0, 25, 50, 75, 100 e 125 kg ha-1, com quatro repetições. Concluiu-se que os mecanismos de distribuição do fertilizante não interferiram na produtividade de grãos do arroz de terras altas; o mecanismo do tipo haste escarificadora promoveu maior altura de plantas e maior número de grãos cheios nos dois anos de cultivo; a aplicação de nitrogênio em cobertura interferiu em algumas características agronômicas, produtivas e em componentes de rendimento de engenho; a produtividade do arroz aumentou até a dose de 69 kg ha-1 de N, no primeiro ano de cultivo.

  17. Influência da cobertura vegetal de inverno e da adubação orgânica e, ou, mineral sobre as propriedades físicas de uma Terra Roxa Estruturada

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    F. Andreola; L. M. Costa; N. Olszevski

    2000-01-01

    O presente trabalho objetivou avaliar a influência da cobertura vegetal de inverno, constituída de uma associação de aveia preta (Avena strigosa Schreb) com nabo forrageiro (Raphanus sativus L.), da adubação orgânica com esterco de aves, da adubação orgânica e mineral e da adubação mineral sobre propriedades físicas do solo, numa Terra Roxa Estruturada do estado de Santa Catarina. As análises foram realizadas em amostras de solo coletadas em agosto de 1994 e janeiro de 1995, nas profundidades...

  18. A QUESTÃO DA DEMARCAÇÃO DAS TERRAS INDÍGENAS RAPOSA SERRA DO SOL E O DESENVOLVIMENTO SOCIOECONÔMICO DE RORAIMA

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    da Silva, Vilmar Antônio

    2013-01-01

    Tendo como obrigação imposta pela Constituição Federal de 1988, a União tem o dever de demarcar e proteger as terras tradicionalmente ocupadas por indígenas. Em Roraima, diversas demarcações foram realizadas pós-1988. Como assunto central, este artigo analisa as implicações econômicas da demarcação da Terra Indígena Raposa Serra do Sol, seus efeitos econômicos e sociais para o estado de Roraima. Para tanto, buscou-se utilizar a pesquisa bibliográfica, por meio de obras científi...

  19. Extratores e disponibilidade de micronutrientes em Terra Preta de Índio da Amazônia Central Extractants and availability of micronutrients in Central Amazonian dark earth soil

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    Adônis Moreira; Wenceslau Geraldes Teixeira; Gilvan Coimbra Martins

    2009-01-01

    O objetivo deste trabalho foi avaliar a disponibilidade de B, Cu, Fe, Mn e Zn em solos com horizonte A antrópico (Terra Preta do Índio - TPI) da Amazônia Central com as soluções extratoras Mehlich 1 (M1), Mehlich 3 (M3) e DTPA-TEA. Foram utilizadas dezesseis amostras de terra preta de diferentes profundidades provenientes de dez sítios arqueológicos e de cinco classes de solos representativas da região (Espodossolo, Neossolo, Latossolo, Argissolo e Cambissolo). Na Terra Preta de Índio, o extr...

  20. Estrutura da população , crescimento e dinamica do banco de plantulas e fenologia reprodutiva de Euterpe edulis Mart. (Arecaceae) num trecho da floresta ombrofila densa das terras baixas do municipio de Paranagua, PR

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    Tonetti, Emerson Luis

    2013-01-01

    Resumo: Euterpe edulis Mart. e uma palmeira comum do estrato medio da Floresta Atlantica (Floresta Ombrofila Densa), que interage com muitos animais e representa importante recurso economico pela utilizacao do palmito no preparo de conservas. Num trecho da Floresta Ombrofila Densa de Terras Baixas do litoral do Parana, no municipio de Paranagua, procurou-se estudar a estrutura populacional, o crescimento e a dinamica do banco de plantulas e a fenologia reprodutiva dos individuos desta especie...

  1. Ética e estética dos filhos: a literatura da Geração da terra

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    Leopoldo Osório de Carvalho de Oliveira

    2012-03-01

    Full Text Available Ao fazer referência em seu título à Ética dos Pais, coletânea mishnaica de ditos e anedotas dos primeiros rabinos de Israel, este artigo tenciona analisar as opções, atitudes e dilemas éticos dos primeiros escritores, falantes nativos de hebraico, da moderna literatura israelense. Essa análise se dará a partir do estudo da longa tradição literária judaica da diáspora e em relação ao ambiente sociopolítico efervescente da Palestina do Mandato Britânico e dos primeiros anos da fundação do Estado de Israel. Nesse sentido, procurar-se-á analisar em que medida e de que modo a atuação literária e política desses intelectuais e artistas impactou a tessitura estética de suas obras

  2. Mapeamento das áreas de preservação permanente e identificação dos conflitos de uso da terra na sub-bacia hidrográfica do Rio Camapuã/Brumado

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    Andrea Brandão Gonçalves; Gustavo Eduardo Marcatti; Carlos Antonio Alvares Soares Ribeiro; Vicente Paulo Soares; João Augusto Alves Meira Neto; Helio Garcia Leite; José Marinaldo Gleriani; Vanessa Mendes Lana

    2012-01-01

    O objetivo deste trabalho foi mapear e quantificar as áreas de preservação permanente (APPs) de acordo com a Resolução nº 303/02 do CONAMA para, então, com base no mapa de uso da terra e cobertura vegetal, identificar e quantificar os eventuais conflitos de uso da terra, com vistas a nortear o cumprimento da lei e promover o uso adequado dos recursos da sub-bacia hidrográfica do rio Camapuã/Brumado, MG. Utilizaram-se uma imagem digital do sensor ETM+/LANDSAT 7, bases cartográficas planialtimé...

  3. Uso da terra e resposta hidrossedimentológica de microbacia no semiárido.

    OpenAIRE

    Palácio, Helba Araújo de Queiroz; Silva Filho, José Ailton da; Andrade, Eunice Maia de; Santos, Julio César Neves dos; Brasil, Paulilo Palácio

    2012-01-01

    Na região Nordeste do Brasil, com clima semiárido e ambiente de contrastes, verifica-se lado a lado a exploração intensiva dos recursos naturais por empresas agrícolas e a agricultura e pecuária praticada por pequenos produtores como forma de garantir a subsistência. Estas explorações ocorrem na grande maioria de forma insustentável, resultando na escassez dos recursos solo e água com sérios reflexos negativos nessa região. Objetivou-se com esta pesquisa analisar a influência da ação antrópic...

  4. Terra sonâmbula e O outro pé da sereia: dois marcos na obra do romancista Mia Couto = Terra sonâmbula and O outro pé da sereia: two important novels in the work of Mia Couto

    OpenAIRE

    Ventura, Susana Ramos

    2013-01-01

    O presente ensaio tece considerações sobre a obra do escritor moçambicano Mia Couto, com ênfase para as questões tratadas em dois de seus romances mais representativos: Terra sonâmbula (1992) e O outro pé da sereia (2006). O ensaio mostra temas recorrentes nos romances do autor e aponta para a abertura de novos caminhos a partir da obra de 2006. Num momento em que o escritor moçambicano começa a ficar mais conhecido que a própria obra, espera-se colaborar para uma reflexão aprofundada da obra...

  5. Adubação da soja: II - Adubação mineral em "terra-roxa-misturada com argilito do glacial" Fertilizing soybeans: II- Mineral fertilizer trial on "terra-roxa-misturada" soil

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    Shiro Miyasaka

    1962-01-01

    Full Text Available Na Zona Sul do Estado de São Paulo, uma faixa de terra de cêrca de 500.000 hectares, compreendendo os municípios de Itapetininga, Itapeva, Itaberá, Itararé e São Miguel Arcanjo, embora de baixa fertilidade, tem suscitado o interesse de grande número de agricultores, pela excelente topografia e clima apropriado ao cultivo de trigo e de soja. Com a finalidade de obter informações preliminares sôbre as reações da soja. Glycine max (L Merril, aos adubos químicos contendo N, P e K e, também, ao calcário, enxôfre e micronutrientes, em solo da região considerada, foi instalado um ensaio em Engenheiro Bacelar (município de Itapeva, em terra-roxa-misturado com argilito do Glacial. Procurou-se, também, verificar o efeito residual dos fertilizantes e do corretivo citados. Os resultados obtidos mostraram forte reação ao fósforo e ao calcário e pequena ao potássio. Vertficou-se efeito negativo do nitrogênio, não revelando significância a presença de micronutrientes e de enxôfre. Pelo estudo teórico do aspecto econômico da adubação fosfatada, nas condições do ensaio, verificou-se a viabilidade da aplicação de superfosfato simples diretamente à cultura da soja. O considerável efeito residual no segundo ano de condução da experiência, evidenciou a possibilidade de ser aumentado, nos plantios subseqüentes, o lucro obtido no primeiro. Por outro lodo, foi comprovada a recomendação, generalizada, de se efetuar a adubação mineral, especialmente de fósforo, nas culturas que precedem a da soja, num programa de rotação.The southern region of São Paulo state, with an area of 500.000 hectares, and comprising the municipalities of Itapetininga, Itararé, Itaberá, Itapeva and São Miguel Arcanjo, is of low fertility but has aroused the interest of farmers because of the excellent topography and the proper climate for the cultivation of wheat (Triticum aestivum, L. and soybeans (Glycine max (L Merril. In order to study the

  6. Variabilidade da água disponível de uma terra roxa estruturada latossólica Available soil-water variability of a "terra roxa estruturada latossólica" (rhodic kanhapludalf)

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    S.O. Moraes; P.L. Libardi

    1993-01-01

    A partir de 250 curvas de retenção da água no solo, elaboradas com amostras indeformadas coletadas de uma área de 6250 m² de uma Terra Roxa Estruturada Latossólica de Piracicaba,SP, foram calculados quatro conjuntos de valores de água disponível assumindo-se -1x10³, -6x10³, -1x10(4) e -3x10(4) Pa como possíveis valores de potencial mátrico correspondentes à capacidade de campo e -1,5x10³ Pa um possível valor correspondente ao ponto de murchamento permanente. Foram feitas medidas de posição (m...

  7. Uso da terra como determinante da distribuição da raiva bovina em Minas Gerais, Brasil Use of the land as determinant of the distribution of the bovine rabies in Minas Gerais, Brazil

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    J.A. Silva

    2001-06-01

    Full Text Available Realizou-se um estudo observacional retrospectivo com o objetivo de avaliar variáveis do uso da terra como determinante da distribuição da raiva bovina em Minas Gerais. Foram analisadas 7.526 fichas de diagnóstico de raiva por imunofluorescência direta, de 1976 a 1997. Utilizaram-se os dados dos Censos Agropecuários de Minas Gerais- FIBGE, anos de 1970, 1985 e 1995-1996. Empregou-se o método da análise fatorial de componentes principais, com auxílio do programa Minitab versão 9.0. A raiva bovina apresentou-se mais associada às lavouras permanentes e temporárias, às pastagens naturais e plantadas e ao efetivo bovino, e menos associada às matas naturais e plantadas, às lavouras em descanso e às terras produtivas não utilizadas. Concluiu-se que as transformações antrópicas no espaço agrário, especialmente no uso da terra, influenciaram de modo determinante a distribuição espacial e temporal da raiva bovina em Minas Gerais.A retrospective observational study was performed to evaluate variables of the use of the land to determine space and time distribution of bovine rabies in Minas Gerais State - Brazil, from 1976 to 1997. The analysis of 7526 records for bovine rabies diagnosis used direct immunofluorescence was performed. For analysis of the use of the land the data of the Agricultural Censuses of Minas Gerais - FIBGE, years of 1970, 1985 and 1995-1996 were studied. Factorial analysis of the main components, with the aid of the Minitab Program version 9.0, was used to investigate the behavior of rabies and variables of the use of the land. This disease was more associated to the permanent and temporary crops, natural and artificial pastures, and size of the bovine herds. On the other hand, it was less associated to the artificial and natural forests, resting crop areas or unused productive land. It was concluded that anthropics transformations in agrarian space, especially related to the use of the land had a determinant

  8. LABORATÓRIO DE CIÊNCIAS E TECNOLOGIAS DA TERRA ATMOSFERA E ENERGIA: UMA CANDIDATURA AO SISTEMA DE APOIO A INFRAESTRUTURAS CIENTÍFICAS E TECNOLÓGICAS (QREN)

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    Araújo, António Alexandre

    2012-01-01

    Descreve-se a preparação e a concretização de uma candidatura institucional da Universidade de Évora com vista à criação de uma infraestrutura cientifico-tecnológica dedicada às Ciências da Terra, Atmosfera e Energia.

  9. Julgamento da Terra Indígena Raposa Serra do Sol: todo dia era dia de índio Raposa Serra do Sol Indigenous Land trial

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    Erica Magami Yamada

    2010-06-01

    Full Text Available O julgamento da demarcação da Terra Indígena Raposa Serra do Sol expôs o papel do STF como legislador positivo. O recém-publicado acórdão do STF sobre o caso agrega as chamadas salvaguardas institucionais formuladas nas 19 ressalvas à ação do poder executivo e aos direitos dos povos indígenas apresentadas em plenária. Algumas dessas ressalvas, verdadeiros enunciados normativos, ameaçam retroceder o reconhecimento de direitos de minorias étnicas no país, na contramão de compromissos internacionais de direitos humanos assumidos, especialmente quanto à interpretação do direito originário dos índios sobre suas terras tradicionais e quanto ao não reconhecimento da organização política indígena com o controle sobre suas terras.The trial to demarcate the Indigenous Land Raposa Serra do Sol revealed the role of the STF as a positive legislator. The recently published decision on the case incorporated the so called institutional safeguards introduced by the 19 conditions to the executive action and to indigenous peoples rights as presented during the hearings. Some of these safeguards, actual normative statements, threaten to move backwards the recognition of minority ethnic groups in brazil. They go against the international commitments of the state towards human rights, particularly regarding the interpretation of indigenous peopels original right to lands and the non-recognition of the indigenous political organization a capacity to control their own lands.

  10. Pagamentos por serviços ambientais, custos de oportunidade e a transição para usos da terra alternativos: o caso de agricultores familiares do Nordeste Paraense

    Directory of Open Access Journals (Sweden)

    Rosangela Calado da Costa

    2013-07-01

    Full Text Available Neste artigo, avalia-se o papel que o pagamento por serviços ambientais proposto pela política pública Proambiente (2003-2007 poderia ter tido sobre a substituição do uso da terra tradicional (sistema de “derruba-e-queima” e a adoção de usos da terra alternativos, capazes de fornecer maiores níveis de serviços ambientais, entre agricultores familiares do Nordeste do Pará, Amazônia Brasileira. Para isso, foram estimados custos de oportunidades para os usos da terra tradicional e alternativos (agricultura sem uso do fogo, sistemas agroflorestais, manejo de açaí, enriquecimento de capoeira e apicultura. Os resultados indicaram que o pagamento do Proambiente teria sido insuficiente para incentivar o abandono do uso da terra tradicional e que poderia ter sido mais promissor fornecer condições para que os agricultores familiares realizassem a transição para usos da terra capazes de fornecer maiores níveis de renda no longo prazo, como sistemas agroflorestais e manejo de açaizal.

  11. SISTEMAS DE PRODUÇÃO E ESTRATÉGIAS DE PERMANÊNCIA NA TERRA: ASSENTAMENTOS RURAIS NO CORAÇÃO DA AGROINDÚSTRIA.

    OpenAIRE

    Campoi, Antonio Marcos; Ferrante, Vera Lucia Silveira Botta

    2006-01-01

    Neste artigo, através de pesquisa feita em uma comunidade assentada no Projeto de Assentamento Rural da Fazenda Monte Alegre, localizada no município de Araraquara-SP, procuramos identificar os principais sistemas de produção relacionados às atividades de cultivos, criações e processamento predominantemente implantados para fins comerciais e as estratégias por eles desenvolvidas para permanecer na terra. Conhecer os itinerários técnicos que operacionalizam estes sistemas e principalmente, com...

  12. Efeito da cobertura vegetal sobre a pérola-da-terra (Hemiptera: Margarodidae na cultura da videira = Effect of cover crops on brazilian ground pearl (Hemiptera: Margarodidae in vineyards

    Directory of Open Access Journals (Sweden)

    Marcos Botton

    2010-10-01

    Full Text Available O uso da cobertura vegetal em vinhedos é uma prática empregada paraminimizar a erosão e melhorar as qualidades químicas e físicas do solo. Neste trabalho, foi avaliado o efeito de coberturas vegetais sobre a população da pérola-da-terra Eurhizococcus brasiliensis (Hemiptera: Margarodidae na cultura da videira. No primeiro experimento, o vinhedo foi mantido sem cobertura vegetal por meio da aplicação trimestral do herbicida glifosato comparado com o uso de vegetação espontânea, durante o ano, de vegetação espontânea, no verão, e de aveia preta no inverno. No segundo experimento foi avaliado o efeito da mucuna-preta (Stizolobium aterrimum cultivada no vinhedo durante o verão comparado com a vegetação espontânea. No primeiro experimento, a população da pérolada-terra nas raízes de plantas de videira foi maior em áreas mantidas sem cobertura vegetal emostrou-se semelhante em áreas onde se manteve a vegetação espontânea, ao longo do ano, e com aveia preta no inverno e vegetação espontânea no verão. A infestação das plantas de videira em áreas onde foi empregada a mucuna-preta durante o verão foi equivalente à da vegetação espontânea. S. aterrimum foi registrada pela primeira vez como hospedeira de E. brasiliensis. The use of cover crops is an important strategy to reduce erosion and improve chemical and physical soil properties. In this work, we evaluate the effect of cover crops to reduce Brazilian ground pearl Eurhizococcus brasiliensis (Hemiptera: Margarodidae infestation in vineyards. In the first experiment, glyphosate was sprayed each three months to avoid cover crops. This treatment was compared with naturally occurring vegetation during the year and the use of Avena sativa in the winter. In a second experiment, Stizolobium aterrimum was cultivated during the summer compared with naturally occurringvegetation. Brazilian ground pearl population was higher in glyphosate sprayed areas than where cover

  13. ALMA science data management

    OpenAIRE

    Stoehr, Felix

    2015-01-01

    ALMA has transitioned now from the construction to the operation phase. We review the Science Data Management of ALMA including the concepts of Data Reduction, Quality Assurance as well as of the Science Archive. We also place the Science Data Management of ALMA into the larger context.

  14. ALMA science data management

    Science.gov (United States)

    Stoehr, Felix

    2015-12-01

    ALMA has transitioned now from the construction to the operation phase. We review the Science Data Management of ALMA including the concepts of Data Reduction, Quality Assurance as well as of the Science Archive. We also place the Science Data Management of ALMA into the larger context.

  15. O PROCESSO DE RESTAURAÇÃO FLORESTAL ENTRE OS GUARANI-NHANDEWA DA TERRA INDÍGENA LARANJINHA (SANTA AMÉLIA, PR

    Directory of Open Access Journals (Sweden)

    Vitor Renck Maciel

    2014-12-01

    Full Text Available A Terra Indígena Laranjinha, habitada pela etnia Guarani Nhandewa, no norte do Paraná, foi submetida, a partir dos anos 50, a uma intensa destruição de seus recursos naturais para exploração madeireira e abertura de áreas agrícolas e de pastagens. No entanto, a comunidade decidiu, a partir do final da década de 1990, realizar um manejo de determinadas áreas para fins de restauração de florestas nativas. Com um controle rigoroso do fogo, começaram a conduzir a regeneração natural. O presente artigo analisa o histórico ambiental desta terra indígena, desde o desmatamento até o processo recente de restauração florestal, procurando compreender seus principais aspectos ambientais, econômicos e socioculturais. Foram realizadas entrevistas semiestruturadas, bem como incursões às áreas em restauração com a finalidade de identificar suas principais características florísticas. A pesquisa mostra que, em 2012, a cobertura com florestas nesta terra indígena era de, aproximadamente, 35% do total, em vários estágios sucessionais, sendo que há 20 anos a cobertura florestal foi estimada em 3,6% do total. A floresta (recriada permite uma ampliação dos recursos, contribui para redefinição da identidade social e para revalorização de suas tradições.

  16. GEOPROCESSAMENTO APLICADO AO DIAGNÓSTICO DE USO E COBERTURA DA TERRA NA MICROBACIA HIDROGRÁFICA DO CÓRREGO HERMES - RONDÔNIA

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    Joiada Moreira da Silva Linhares

    2014-01-01

    Full Text Available A microbacia hidrográfica do córrego Hermes, inserida no cone-sul de Rondônia, vem enfrentando severas implicações ambientais relacionadas às mudanças do uso da terra, tais como a conversão da floresta em áreas de lavouras e pastagens para criação extensiva de gado. Tais alterações são devidas, em um primeiro momento, à consolidação de um Programa de Integração Nacional – PIN, através da implantação do projeto de Colonização Paulo Assis Ribeiro, e mais recentemente vem sendo ampliadas por uma nova dinâmica econômica ligada ao mercado de exportação de alta rentabilidade, a agroindústria. O objetivo deste estudo foi avaliar as causas e consequências das mudanças do uso e cobertura da terra na microbacia hidrográfica do córrego Hermes, através da aplicação de método espacial e não espacial de geoprocessamento. Os resultados analíticos de métricas de paisagem indicam que 82,76% da área correspondem a uma matriz de pastagem de gramíneas, e que 14,64% reportam-se a cobertura vegetal nativa seccionada em 18 fragmentos pouco inter-relacionados, havendo ainda 1,94% e 0,66% relativos à agricultura (lavoura perene e anual e áreas edificadas, respectivamente. Depreende-se, por fim, que o intenso desflorestamento, com fins de aumento de áreas destinadas às atividades de agropecuária, é a principal causa da devastação da floresta de transição na MBCH-RO, emanando desta outras formas de degradação ambiental, como erosão, assoreamento dos cursos de água perenes, aumento da carga de partículas em suspensão e dissolvidas, e, por fim, modificação dos ciclos hidrológicos e de carbono em escalas local, regional e global.

  17. Sistema de suporte à decisão para recomendação de uso e manejo da terra A decision support system for recommending land use and soil management

    OpenAIRE

    Monica L. Giboshi; Luiz H. A. Rodrigues; Francisco Lombardi Neto

    2006-01-01

    Objetivou-se, com este trabalho, o desenvolvimento de um sistema de apoio à decisão para a recomendação de uso e manejo da terra, integrando Sistema Especialista, Sistema de Informações Geográficas, uma base de dados e uma interface para interpretar a entrada de dados do usuário e as mensagens passadas entre os subsistemas. O sistema desenvolvido determina a capacidade de uso da terra; recomenda usos adequados para cada classe de capacidade de uso como também práticas de conservação e manejo ...

  18. Classificação da capacidade de uso das terras da Microbacia do Riacho Una, Sapé, PB Classification of land use capacity of micro basin of Una stream in Sapé, PB, Brazil

    Directory of Open Access Journals (Sweden)

    Izaque F. C. Mendonça

    2006-12-01

    Full Text Available A crescente expansão das atividades agropecuárias sem a consideração das potencialidades e limitações das terras, constitui fonte potencial de degradação do meio ambiente. Neste trabalho, objetiva-se avaliar o meio físico das terras da microbacia hidrográfica do Riacho Una, Sapé, PB, a partir da classificação de capacidade de uso das terras. A área se localiza na porção leste do Estado da Paraíba, entre as coordenadas geográficas: 35º 08' 16" e 35º 15' 12" de longitude, a oeste de Greenwich e 06º 59' 18" e 07º 05' 42" de latitude sul. Utilizam-se, nos procedimentos adotados, técnicas de geoprocessamento, sendo a integração de informações realizada no Sistema de Informações Geográficas Idrisi Kilimanjaro versão 14.0. Para a avaliação das terras adotou-se o sistema de capacidade de uso. Os resultados obtidos demonstraram que a Microbacia Hidrográfica do Riacho Una apresenta resultados bastante satisfatórios, com indicação de aproximadamente 60% de terras aptas para uso agrícola.The growing expansion of agricultural activities without consideration of the potentialities and limitations of land constitutes a potential source of environment degradation. This work aimed to evaluate the physical proprieties of lands in the micro bosin of Una, Sapé in the state of Paraiba, Brazil, using the classification of the land use capacity . The area is located in the eastern part of the Paraíba state, between the geographical coordinates: 35º 08' 16" and 35º 15' 12" longitude, West of Greenwich and 06º 59' 18" and 07º 05' 42" latitude South. The adopted procedures utilized geoprocessing techniques and the integration of information was made in the Geographical Information Systems Idrisi Kilimanjaro, version 14.0. The system of soil use capacity was adopted to evaluate land. The results obtained demonstrated that the micro basin of stream Una presents satisfactory results with an indication that approximately 60% of its

  19. TerraSAR-X

    Directory of Open Access Journals (Sweden)

    Fabrizio Bernardini

    2007-03-01

    Full Text Available TerraSAR-X è sviluppato ed operato dall’Agenzia Spaziale Tedesca (DLR, Deutsches Zentrum für Luft- und Raumfahrt e da EADS Astrium con l’obiettivo di essere il primo satellite per osservazione della Terra (EO in grado di fornire globalmente e con continuità dati radar in banda X. La tecnologia Radar ad Apertura Sintetica (SAR realizzata in banda X, cioè a frequenze superiori rispetto a quelle delle bande C ed L usate in precedenza in altre missioni, permetterà di fornire servizi con risoluzioni variabili tra 1 e 16 metri.

  20. Variabilidade da água disponível de uma terra roxa estruturada latossólica Available soil-water variability of a "terra roxa estruturada latossólica" (rhodic kanhapludalf

    Directory of Open Access Journals (Sweden)

    S.O. Moraes

    1993-12-01

    Full Text Available A partir de 250 curvas de retenção da água no solo, elaboradas com amostras indeformadas coletadas de uma área de 6250 m² de uma Terra Roxa Estruturada Latossólica de Piracicaba,SP, foram calculados quatro conjuntos de valores de água disponível assumindo-se -1x10³, -6x10³, -1x10(4 e -3x10(4 Pa como possíveis valores de potencial mátrico correspondentes à capacidade de campo e -1,5x10³ Pa um possível valor correspondente ao ponto de murchamento permanente. Foram feitas medidas de posição (média, variabilidade (coeficiente de variação, assimetria e curtose e numero necessário de amostras para estimar a média a um dado nível de probabilidade a fim de quantificar a variabilidade e a sensibilidade dos resultados em cada conjunto e entre conjuntos de valores de água disponível. A análise dos resultados mostrou que a variabilidade da água disponível, obtida à partir de dois valores de umidade da Curva de Retenção é muito maior que a variabilidade de cada valor individualmente. Ou seja, embora as variáveis envolvidas possam ser as mesmas, o grau de variabilidade (expresso, por exemplo, pelo coeficiente de variação ou a sensibilidade das medidas (expressa pelo número necessário de amostras para estimar a média dentro de um determinado intervalo de confiança pode ser bem distinto, indicando que nem sempre resultados de uma amostragem realizada com determinado objetivo poderá servir a outros, embora possam tratar-se de variáveis dependentes.From 250 soil-water retention curves of an area of 6250 m² of a "Terra Roxa Estruturada Latossólica" (Rhodic Kanhapludalf located in Piracicaba,SP, four sets of available soil-water were calculated assuming field capacity values based on soil-water contents corresponding to -1x10³, -6x10³, -1x10(4 and -3x10(4 Pa of soil water matric potential; and permanent wilting point based on soil-water contents corresponding to -1,5x10(6 Pa. Aiming to quantify the variability and the

  1. Controvérsias sócio-científicas : discutir ou não discutir: percursos de aprendizagem na disciplina de ciências da terra e da vida

    OpenAIRE

    Reis, Pedro Guilherme Rocha dos, 1965-

    2004-01-01

    Tese de doutoramento em Educação (Didáctica das Ciências), apresentada à Universidade de Lisboa através da Faculdade de Ciências, 2004 A presente investigação pretendeu estudar a forma como um grupo de professores e alunos de Ciências da Terra e da Vida (11º ano) interpretam e reagem às controvérsias sócio-científicas recentes, divulgadas pelos meios de comunicação social. Este estudo reveste-se de particular relevância num período marcado, simultaneamente, por fortes discussõe...

  2. Changes in population and land use over time in the Ecuadorian Amazon Mudanças populacionais e de uso da terra na Amazônia Ecuatoriana

    Directory of Open Access Journals (Sweden)

    Richard E. Bilsborrow

    2004-12-01

    e maior cidade da Amazônia Equatoriana, empresas petrolíferas iniciaram a abertura de estradas e construção de oleodutos visando a extração, transporte através dos Andes e exportação de petróleo. A exploração petrolífera na Amazônia Equatoriana tem respondido, nos últimos trinta anos, por cerca da metade dos rendimentos com exportação e na arrecadação governamental. As estradas abertas na Amazônia facilitaram a imigração maciça e espontânea de famílias dos Andes equatorianos, uma região tradicionalmente caracterizada pela presença de minifúndios e pobreza rural. Este artigo discute a metodologia de coleta de dados e sumariza os principais resultados de pesquisas sobre esses imigrantes na Amazônia Equatoriana, especificamente em termos de mudanças nas características populacionais, uso e propriedade da terra, tecnologia, trabalho e padrão de vida, assim como relações entre características populacionais e uso da terra ao longo dos anos 90. O elevado crescimento populacional devido ao crescimento natural (alta fecundidade e contínua imigração tem engendrado a subdivisão e fragmentação de lotes rurais desde 1990, em contraste ao processo de concentração de terra em diversas partes da Amazônia brasileira.

  3. O PROCESSO DE RESTAURAÇÃO FLORESTAL ENTRE OS GUARANI-NHANDEWA DA TERRA INDÍGENA LARANJINHA (SANTA AMÉLIA, PR)

    OpenAIRE

    Vitor Renck Maciel; Luiz Antonio Norder

    2014-01-01

    A Terra Indígena Laranjinha, habitada pela etnia Guarani Nhandewa, no norte do Paraná, foi submetida, a partir dos anos 50, a uma intensa destruição de seus recursos naturais para exploração madeireira e abertura de áreas agrícolas e de pastagens. No entanto, a comunidade decidiu, a partir do final da década de 1990, realizar um manejo de determinadas áreas para fins de restauração de florestas nativas. Com um controle rigoroso do fogo, começaram a conduzir a regeneração natural. O presente a...

  4. Dependência espacial da eficiência do uso da terra em assentamento rural na Amazônia Spatial dependence of land use efficiency in an Amazon rural settlement

    Directory of Open Access Journals (Sweden)

    Eliane Gonçalves Gomes

    2009-01-01

    Full Text Available Mudanças no uso e manejo da terra podem ser responsáveis por incrementos na produtividade agrícola. Neste artigo propõe-se o uso de modelos de Análise de Envoltória de Dados (DEA para avaliar a distribuição espacial da eficiência de agricultores familiares na forma do uso da terra. Estudou-se a evolução da "produtividade da terra" para um grupo de agricultores de Machadinho d'Oeste (RO, para quatro períodos de tempo. As variáveis dos modelos DEA foram as produções de arroz, milho e café como outputs, e a área total plantada dessas culturas como input. Os resultados mostram que o plantio simultâneo de arroz e milho foi a combinação de melhor desempenho. Houve dependência espacial para a eficiência produtiva nos quatro anos avaliados. Os anos de 1999 e 2002 apresentaram maior uniformização em termos da eficiência produtiva dos lotes por toda área, com os lotes mais eficientes concentrando-se na parte central da área de estudo.Agricultural productivity enhancement can be due to land use and land handling changes. In this paper we propose the use of Data Envelopment Analysis models (DEA to evaluate the spatial distribution of family farmers land use efficiency. We studied the "land productivity" evolution for a sample of family farmers from Machadinho d'Oeste (RO, during four periods of time. DEA models variables were rice, maize and coffee productions as outputs, and these crops total cultivated area as input. As a result we noticed that cultivating simultaneously rice and maize was the best performance case. Efficiency measurements had spatial dependence in the four periods of time. In 1999 and 2002 farms productive efficiency measurements were more uniformly distributed; the most efficient farmers were concentrated in the central part of the studied area.

  5. ANÁLISE TEÓRICA SOBRE A INFLUÊNCIA DA ESTRUTURA ELETRÔNICA NAS PROPRIEDADES MAGNÉTICAS DOS ELEMENTOS TERRAS-RARAS

    Directory of Open Access Journals (Sweden)

    Fábio Henrique Silva Sales

    2013-09-01

    Full Text Available Apresentamos um estudo teórico que propõe uma abordagem de fácil entendimento sobre as propriedades magnéticas dos Terras-Raras (TR disprósio (Dy e o hólmio (Ho, a partir da estrutura eletrônica destes elementos. Os elétrons desemparelhados nos orbitais 4f dão origem magnetismo dos TR, fazendo com que estes apresentem altos valores de momento magnéticos comparados a outros elementos químicos. Sistemas nanomagnéticos artificiais envolvendo nanocamadas de Dy e Ho tem sido amplamente estudado nos últimos anos, devido principalmente às fases magnéticas exóticas apresentadas por esses materiais, favorecendo, cada vez mais, o aparecimento de novas propriedades magnéticas nestes sistemas, e o interesse da indústrias da magneto-eletrônica e refrigeração magnética.

  6. Haematological and biochemical parameters in Churra-da-Terra-Quente ewes from the northeast of Portugal Parâmetros hematológicos e bioquímicos de ovelhas da raça Churra da Terra Quente do nordeste de Portugal

    Directory of Open Access Journals (Sweden)

    I.R. Dias

    2010-04-01

    Full Text Available Hematological and biochemical parameters, including plasma electrolytes and thyroid hormones, were determined in 73 clinically healthy Churra-da-Terra-Quente ewes, a typical breed from the northeast of Portugal. The hemogram values were: erythrocytes 9.8±1.5×10(12/L; haemoglobin 118.1±19.1g/L; haematocrit 40.8±5.9%; leukocytes 5.7±1.8×10(9/L; and platelets 544.3±177.2×10(9/L. The thrombin time was 17.3±1.7 seconds. The values of biochemical parameters were: total protein 76.4±6.1g/L; glucose 2.87±0.60mmol/L; total cholesterol 1.65±0.33mmol/L; aspartate aminotransferase 155.9±49.2U/L; alanine aminotransferase 23.2±9.6U/L; γ-glutamyl transferase 48.0±18.7U/L; total alkaline phosphatase 121.6±76.1U/L; glutamate dehydrogenase 6.4±3.7U/L; urea 7.32±2.22mmol/L; creatinine 123.0±54.1μmol/L; total calcium 2.53±0.25mmol/L; phosphorus 2.10±0.46mmol/L; magnesium 1.01±0.09mmol/L; sodium 152.04±3.65mmol/L; potassium 4.7±0.4mmol/L; ionized calcium 1.32±0.07mmol/L; total thyroxine 111.75±42.29nmol/L; total triiodothyronine 1.01±0.28nmol/L; free T4 11.93±1.78pmol/L; free T3 4.22±1.33pmol/L; and thyroid-stimulating hormone 0.18±0.19μIU/mL. Although differences among the Churra-da-Terra-Quente breed and other breeds may occur, the hematological and biochemical parameters, plasma electrolytes, and thyroid hormones, for this indigenous breed, were generally situated within the reference intervals previously reported for sheep.Os valores hematológicos e bioquímicos, incluindo os eletrólitos plasmáticos e os hormônios da tireoide, foram determinados em 73 ovelhas, clinicamente saudáveis, da raça Churra da Terra Quente, raça ovina característica do nordeste de Portugal. Os valores obtidos para o hemograma foram: eritrócitos 9,8±1,5×10(12 /L; hemoglobina 118,1±19,1g/L; hematócrito 40,8±5,9%; leucócitos 5,7±1,8×10(9 /L e plaquetas 544,3±177,2×10(9/L. O tempo de trombina foi de 17,3±1,7 segundos. Os valores dos par

  7. ALMA science operations

    Science.gov (United States)

    Nyman, Lars-Åke; Andreani, Paola; Hibbard, John; Okumura, Sachiko K.

    2010-07-01

    The ALMA (Atacama Large Millimeter/submillimeter Array) project is an international collaboration between Europe, East Asia and North America in cooperation with the Republic of Chile. The ALMA Array Operations Site (AOS) is located at Chajnantor, a plateau at an altitude of 5000 m in the Atacama desert in Chile, and the ALMA Operations Support Facility (OSF) is located near the AOS at an altitude of 2900 m. ALMA will consist of an array of 66 antennas, with baselines up to 16 km and state-of-the-art receivers that cover all the atmospheric windows up to 1 THz. An important component of ALMA is the compact array of twelwe 7-m and four 12-m antennas (the Atacama Compact Array, ACA), which will greatly enhance ALMA's ability to image extended sources. Construction of ALMA started in 2003 and will be completed in 2013. Commissioning started in January 2010 and Early Science Operations is expected to start during the second half of 2011. ALMA science operations is provided by the Joint ALMA Observatory (JAO) in Chile, and the three ALMA Regional Centers (ARCs) located in each ALMA region - Europe, North America and East Asia. ALMA observations will take place 24h per day, interrupted by maintenance periods, and will be done in service observing mode with flexible (dynamic) scheduling. The observations are executed in the form of scheduling blocks (SBs), each of which contains all information necessary to schedule and execute the observations. The default output to the astronomer will be pipeline-reduced images calibrated according to the calibration plan. The JAO is responsible for the data product quality. All science and calibration raw data are captured and archived in the ALMA archive, a distributed system with nodes at the OSF, the Santiago central office and the ARCs. Observation preparation will follow a Phase 1/Phase 2 process. During Phase 1, observation proposals will be created using software tools provided by the JAO and submitted for scientific and

  8. Influência da cobertura vegetal de inverno e da adubação orgânica e, ou, mineral sobre as propriedades físicas de uma Terra Roxa Estruturada

    Directory of Open Access Journals (Sweden)

    F. Andreola

    2000-12-01

    Full Text Available O presente trabalho objetivou avaliar a influência da cobertura vegetal de inverno, constituída de uma associação de aveia preta (Avena strigosa Schreb com nabo forrageiro (Raphanus sativus L., da adubação orgânica com esterco de aves, da adubação orgânica e mineral e da adubação mineral sobre propriedades físicas do solo, numa Terra Roxa Estruturada do estado de Santa Catarina. As análises foram realizadas em amostras de solo coletadas em agosto de 1994 e janeiro de 1995, nas profundidades de 0-10, 10-20 e 20-30 cm, em um experimento iniciado em 1990. Verificou-se uma redução na estabilidade de agregados maiores que 4,76 mm, quando se fez uso de adubação orgânica, bem como aumento na estabilidade de agregados das classes de diâmetro 4,76 a 2,00 e 2,00 a 1,00 mm. Na camada de solo de 0-10 cm, observou-se que o adubo orgânico aumentou a macroporosidade e diminuiu a densidade do solo, enquanto a adubação orgânica e mineral reduziu a macroporosidade e aumentou a microporosidade e a densidade do solo.

  9. Eugenizar a alma: a constituição da euphrenia no projeto de higiene mental voltado à infância da Liga Brasileira de Hygiene Mental

    Directory of Open Access Journals (Sweden)

    Cristiane Oliveira

    2011-12-01

    Full Text Available O presente artigo analisa a constituição da "euphrenia" como um novo domínio para a psiquiatria brasileira na sua abordagem eugênica e higiênica da infância. A análise de saberes médicos e psicológicos acerca do psiquismo infantil no Brasil das décadas de 1920 e 1930 descortina a intensa circulação afetiva intrafamiliar como ponto de ancoragem para um projeto de normalização social, ainda centrado na eugenia, mas já atravessado por uma psicologia da adaptação.

  10. Efeito do teor de carbono do metal de base e da alma do eletrodo revestido sobre a porosidade em soldas molhadas The effect of base metal and core rod carbon content on underwater wet welds porosity

    Directory of Open Access Journals (Sweden)

    Luciano G. D. Andrade

    2010-06-01

    Full Text Available Porosidade é um defeito comum em soldagem subaquática molhada. Vários estudos têm sido realizados com o objetivo de avaliar os mecanismos que controlam sua formação e assim encontrar soluções para minimizá-la ou eliminá-la. Este trabalho tem como objetivo avaliar o efeito da variação dos teores de carbono do metal de base e da alma do eletrodo sobre a porosidade do metal de solda. Dois diferentes metais de base, com variações apenas no teor de carbono (C2 - 0,1% e C7 - 0,7%, foram utilizados para deposição das soldas feitas à 50 metros de profundidade, utilizando eletrodos comerciais E6013 com diferentes teores de carbono na alma (E2 - 0,002% e E6 -0,6%, em polaridade direta (DCEN. O método macrográfico de análise de imagens foi utilizado para a quantificação da porosidade. Utilizando os metais de base C2 e C7, observou-se que a porosidade aumentou significativamente com o aumento do teor de carbono da alma do eletrodo. Em contrapartida, observou-se uma redução da porosidade com o aumento do teor de carbono do metal de base utilizando-se os eletrodos E2 e E6.Porosity is a very common defect observed in underwater wet welding. Several researches have been developed to understand its formation mechanisms in order to mitigate the problem. The main objective of this project is to study the effect of base metal and core rod carbon content at weld metal porosity. Bead-on-plate were made on two different base metal carbon content (C2 - 0.1 wt. pct. and C7 - 0.7 wt. pct. at 50 meters water depth, using commercial E6013 electrodes covered with varnish. Electrodes with different carbon content in core rod were used (E2 - 0.002 wt. pct. and E6 - 0.6 wt. pct. in polarity negative (DCEN. Macrographic method (image analysis was used to porosity quantification. Using the basic metals C2 and C7, it was observed that the porosity increased significantly with increasing core rod carbon content. In contrast, there was a reduction in

  11. Resenha de Bambu de corpo e alma

    OpenAIRE

    Oscar D'Ambrosio

    2010-01-01

    Lançado em setembro, o livro Bambu de corpo e alma, de Marco Pereira, docente da Faculdade de Engenharia (FE), câmpus de Bauru, e Antonio Ludovico Beraldo, da Faculdade de Engenharia Agrícola (Feagri) da Unicamp, mostra as principais características dessa planta e suas utilidades. Com o trabalho, os autores desejam difundir o potencial econômico da planta. Resultado de quatro anos de pesquisa, a publicação mostra tanto a dimensão física do bambu, chamada de “corpo”, como a “alma”, explorada n...

  12. Os direitos da mulher à terra e os movimentos sociais rurais na reforma agrária brasileira Women's land rights and rural social movements in the Brazilian agrarian reform

    Directory of Open Access Journals (Sweden)

    Carmen Diana Deere

    2004-04-01

    Full Text Available Este artigo examina a evolução da reivindicação dos direitos da mulher à terra na reforma agrária brasileira sob o prisma dos três principais movimentos sociais rurais: o Movimento dos Trabalhadores Rurais Sem Terra (MST, os sindicatos rurais e o movimento autônomo de mulheres rurais. O mérito maior por levantar a questão dos direitos da mulher à terra é das mulheres dentro dos sindicatos rurais. Os direitos formais das mulheres à terra foram conseguidos na reforma constitucional de 1988, e em grande medida isso foi um subproduto do esforço para acabar com a discriminação contra as mulheres em todos as suas dimensões. A conquista das igualdades formais, contudo, não levou a um aumento na parcela de mulheres beneficiárias da reforma, a qual permaneceu baixa até a metade da década de 1990. Isso aconteceu principalmente porque garantir na prática os direitos da mulher à terra não estava entre as prioridades dos movimentos sociais rurais. Além disso, o principal movimento social a determinar o passo da reforma agrária, o (MST, considerava classe e gênero questões incompatíveis. Próximo ao final da década de 1990, entretanto, havia uma consciência crescente de que deixar de reconhecer os direitos da mulher à terra era prejudicial ao desenvolvimento e à consolidação dos assentamentos da reforma agrária e, portanto, para o movimento. O crescente consenso, entre todos os movimentos sociais rurais, sobre a importância em assegurar o direito da mulher à terra, junto com um lobby efetivo, encorajou o Estado em 2001 a adotar mecanismos específicos para a inclusão de mulheres na reforma agrária.This article examines the evolution of the demand for women's land rights in the Brazilian agrarian reform through the prism of the three main rural social movements: the landless movement, the rural unions and the autonomous rural women's movement. Most of the credit for raising the issue of women's land rights rests with

  13. Efeito do teor de carbono do metal de base e da alma do eletrodo revestido sobre a porosidade em soldas molhadas The effect of base metal and core rod carbon content on underwater wet welds porosity

    OpenAIRE

    Luciano G. D. Andrade; Weslley C. Dias; Leandro F. Ribeiro; Alexandre Q. Bracarense; Ezequiel C. P. Pessoa; Stephen Liu

    2010-01-01

    Porosidade é um defeito comum em soldagem subaquática molhada. Vários estudos têm sido realizados com o objetivo de avaliar os mecanismos que controlam sua formação e assim encontrar soluções para minimizá-la ou eliminá-la. Este trabalho tem como objetivo avaliar o efeito da variação dos teores de carbono do metal de base e da alma do eletrodo sobre a porosidade do metal de solda. Dois diferentes metais de base, com variações apenas no teor de carbono (C2 - 0,1% e C7 - 0,7%), foram utilizados...

  14. Soil organic matter and fertility of anthropogenic dark earths (Terra Preta de Índio in the Brazilian Amazon basin Matéria orgânica e fertilidade de solos antropogênicos (Terra Preta De Índio da Bacia Amazônica brasileira

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    Tony Jarbas Ferreira Cunha

    2009-02-01

    Full Text Available Fertility properties, total C (Ctot, and chemical soil organic matter fractions (fulvic acid fraction - FA, humic acid fraction - HA, humin fraction - H of anthropogenic dark earths (Terra Preta de Índio of the Amazon basin were compared with those of Ferralsols with no anthropogenic A horizon. Terra Preta soils had a higher fertility (pH: 5.1-5.4; Sum of bases, SB: 8.93-10.33 cmol c kg-1 , CEC: 17.2-17.5 cmol c kg-1 , V: 51-59 %, P: 116-291 mg kg-1 and Ctot (44.6-44.7 g kg-1 than adjacent Ferralsols (pH: 4.4; SB: 2.04 cmol c kg-1, CEC: 9.5 cmol c kg-1, V: 21 %, P 5 mg kg-1, C: 37.9 g kg-1. The C distribution among humic substance fractions (FA, HA, H in Terra Preta soils was also different, as shown by the ratios HA:FA and EA/H (EA=HA+FA (2.1-3.0 and 1.06-1.08 for Terra Preta and 1.2 and 0.72 for Ferralsols, respectively. While the cation exchange capacity (CEC, of Ferralsols correlated with FA (r = 0.97, the CEC of Terra Preta correlated with H (r = 0.82. The correlation of the fertility of Terra Preta with the highly stable soil organic matter fraction (H is highly significant for the development of sustainable soil fertility management models in tropical ecosystems.Propriedades de fertilidade, carbono total (Ctot e frações químicas da matéria orgânica (fração ácidos fúlvicos - FA, fração ácidos húmicos - HA e fração humina - HUM foram comparados entre solos antrópicos (Terra Preta de Índio e Latossolos sem horizonte A antrópico. Os solos antrópicos apresentaram maior fertilidade (pH: 5,1-5,4; S: 8,93-10,33 cmol c kg-1 ; CEC: 17,2-17,5 cmol c kg-1 ; V: 51-59 %; P: 116-291 mg kg-1 e maiores teores de carbono total (44,6-44,7 g kg-1 que os Latossolos (pH: 4,4; S: 2,04 cmol c kg-1; CEC: 9,5 cmol c kg-1; V: 21 %, P: 5 mg kg-1, Ctot: 37,9 g kg-1. Os solos antrópicos também tiveram distribuição diferenciada de C entre as frações das substâncias húmicas (FA, HÁ e HUM, expressa pelas razões HA:FA e EA:HUM (EA = HA + FA

  15. Estratificação vertical da fauna de flebótomos (Diptera, Psychodidae numa floresta primária de terra firme da Amazônia Central, Estado do Amazonas, Brasil

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    Dias-Lima Artur

    2002-01-01

    Full Text Available Estudos sobre a estratificação vertical da fauna de flebótomos, foram realizados numa floresta primária de terra firme, da Estação Experimental de Silvicultura Tropical-Instituto Nacional de Pesquisas da Amazônia, durante os meses de outubro de 1998 a março de 1999. Utilizando-se armadilhas luminosas CDC, colocadas a 1, 10 e 20 metros de altura do solo, foram coletados 2.859 flebótomos, pertencentes a dois gêneros, Lutzomyia (99,93 % e Brumtomyia (0,07%, abrangendo 38 espécies. Dentro do gênero Lutzomyia, os sub-gêneros mais representados foram Nyssomyia, com 43,4%, e Psychodopygus com 22,8%. As espécies Lutzomyia umbratilis, L. anduzei, L. rorotaensis, L. trichopyga e L. olmeca nociva, foram dominantes a 1m de altura, enquanto que L. davisi, L. infraspinosa, L. umbratilis, L. trichopyga e L. anduzei, foram dominantes a 10m. As espécies L. anduzei, L. tuberculata, L. dendrophyla e L. dreisbachi foram mais abundantes a 20m. L. umbratilis, presente nos três níveis de estratificação vertical, é dotada de alta importância epidemiológica como vetora da Leishmania (Viannia guyanensis.

  16. Mecanismos de abertura do sulco e da adubação nitrogenada em arroz de terras altas

    OpenAIRE

    2013-01-01

    A cultura do arroz adapta-se pouco ao sistema plantio direto (SPD) em razão da maior compactação da camada superficial do solo, devido ao intenso tráfego de máquinas e não mobilização do solo. Nesse caso, o mecanismo utilizado na semeadora para a abertura dos sulcos com a finalidade de deposição do adubo pode ter grande importância para facilitar a penetração das raízes e aumentar a porosidade do solo. Diante disso, propôs-se este estudo com o objetivo de avaliar o desenvolvimento e a produti...

  17. InfoTerra/TerraSAR initiative

    Science.gov (United States)

    Wahl, Manfred W.

    2004-01-01

    The overarching goal of the InfoTerra/TerraSAR Initiative is to establish a self-sustaining operational/commercial business built on Europe"s know-how and experience in space-borne Synthetic Aperture Radar (SAR) technology, in SAR data processing as well as in SAR applications. InfoTerra stands for a new business concept based on supplying innovative geo-information products and services. TerraSAR is a space and ground system conceived to consist of an initial deployment and operation of 2 Radar satellites (one in X- and one in L-band) flying in a tandem configuration in the same orbit. The design of TerraSAR is driven by the market and is user-oriented. TerraSAR is key to capturing a significant proportion of the existing market and to opening new market opportunities, when it becomes operational. The InfoTerra/TerraSAR Initiative has evolved gradually. It started in 1997 as a joint venture between German (DSS) and British (MMS-UK) space industry, strongly supported by both space agencies, DLR and BNSC. In early 2001, DLR and BNSC submitted to ESA the Formal Programme Proposal for InfoTerra/TerraSAR to become an essential element of ESA"s Earth Watch Programme. In summer 2001, when it became evident that there was not yet sufficient support from the ESA Member States to allow immediate start entering into TerraSAR Phase C/D, it has been decided to implement first a TerraSAR consolidation phase. In early 2002, in order to avoid further delays, a contract was signed between DLR and Astrium GmbH on the development of one component of TerraSAR, the TerraSAR-X, in the frame of a national programme, governed by a Public Private Partnership Agreement. Even if now the different launch dates for TerraSAR-X and TerraSAR-L are narrowing down the window of common data acquisition, it is a reasonable starting point, but it should always be kept in mind that the utmost goal for the longterm is to achieve self sustainability by supplying geo-information products and services

  18. Brazilian ground pearl damaging blackberry, raspberry and blueberry in Brazil Pérola-da-terra causando danos em amoreira-preta, framboeseira e mirtileiro no Brasil

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    Caio Fábio Stoffel Efrom

    2012-09-01

    Full Text Available The Brazilian ground pearl, Eurhizococcus brasiliensis (Wille, 1922 (Hemiptera: Margarodidae, is a subterranean, polyphagous scale insect native of Southern Brazil that feeds on a variety of different vineyard plant species (Vitis spp.. In this study, it is reported three new plant hosts of the species. In 2007 and 2010, infested plants were documented in the towns of Farroupilha (29°14'34"S, 51°23'20"W and Vacaria (28°26'30"S, 50°52'59"W in Rio Grande do Sul, Brazil. Specimens of the ground pearl were found in the roots of three cultivated berry plants: blackberry (Rubus spp., raspberry (Rubus idaeus L. and blueberry (Vaccinium sp.. Observed symptoms included: chlorotic leaves, gradual wasting, reduced production, and mortality. Given the increasing popularity of berry orchards in the region, this study serves as an alert for farmers to avoid establishing them in areas infested with the ground pearl and to check for the insects in the root cuttings used to establish berry crops.A pérola-da-terra Eurhizococcus brasiliensis (Wille, 1922 (Hemiptera: Margarodidae é uma cochonilha subterrânea, polífaga, nativa do sul do Brasil, que se alimenta de diversas espécies vegetais causando prejuízos, principalmente à cultura da videira (Vitis spp.. Nesta comunicação, três espécies vegetais são relatadas como novos hospedeiros da praga. Em 2007 e 2010, plantas infestadas foram registradas nos municípios de Farroupilha (29°14'34"S e 51°23'20"W e Vacaria (28°26'30"S e 50°52'59"W, RS. Exemplares da cochonilha foram encontrados em raízes de amoreira-preta (Rubus spp., framboeseira (Rubus idaeus L. e mirtileiro (Vaccinium sp.. Os sintomas observados foram folhas cloróticas, definhamento progressivo, diminuição na produção e morte das plantas. Devido à ampliação do cultivo de pequenas frutas na região, essa informação serve de alerta aos produtores para que evitem o plantio em áreas infestadas com a cochonilha e observem a presen

  19. Estado nutricional e fatores associados à estatura de crianças da Terra Indígena Guarita, Sul do Brasil Nutritional status and social determinants of child height in the Guarita Indigenous Territory, Southern Brazil

    OpenAIRE

    Ivone Andreatta Menegolla; Maria de Lourdes Drachler; Inajara Haubert Rodrigues; Lucio Roberto Schwingel; Elaine Scapinello; Maisa Beltrame Pedroso; José Carlos de Carvalho Leite

    2006-01-01

    O estado nutricional de crianças menores de cinco anos e fatores associados à estatura foram estudados usando dados de um programa para controle da desnutrição e mortalidade na Terra Indígena Guarita, Rio Grande do Sul, Brasil, 2001/2002. Índices antropométricos foram calculados em escores-z da referência CDC/2000. Na primeira avaliação pelo programa, 34,7%, das crianças apresentavam baixa estatura, 12,9% baixo peso para idade, 4,2% baixo peso para estatura e 8,7% sobrepeso. Baixa estatura fo...

  20. Tradição em continuidade: multiplicidade e ecoeficiência das quintas da terra fria transmontana

    OpenAIRE

    Gonçalves, Joana; Mateus, Ricardo; Ferreira, Teresa

    2015-01-01

    Com a consciência de que arquitectura enfrenta hoje novos desafios, particularmente na necessidade de encontrar respostas integradoras e integradas no meio socio-cultural e ambiental, esta investigação visa estimular o conhecimento de exemplares da arquitectura vernácula portuguesa até agora não documentados. Este património permanece uma importante fonte de informação, pelo seu apuramento experimental de décadas e, ao centrar o estudo nas fontes primárias, procurou-se uma interpr...

  1. Relações intertextuais de Yuxin-Alma

    OpenAIRE

    Choma, Irineu

    2012-01-01

    Resumo: Pretende-se no decorrer desta leitura, observar as relações intertextuais do romance Yuxin - Alma de Ana Miranda com outras obras da biblioteca. A configuração estética da narrativa está alicerçada nos intertextos. Amparados em estudos teóricos sobre o assunto, (Samoyault e Genette), pretendemos num primeiro momento, averiguar as relações de Yuxin- Alma com duas referências apresentadas pela escritora na "Nota", presente no final do romance, Diários da Floresta de Betty Mindlin e Ra-t...

  2. Seláquios do Acervo do Museu de Ciências da Terra / DNPM-RJ

    Directory of Open Access Journals (Sweden)

    Alex Alves Souto

    2005-01-01

    Full Text Available Os seláquios depositados na Coleção de Peixes Fósseis do MCTer correspondem a uma amostragem da ocorrência do grupo no Brasil. São 86 registros, sendo 9 deles holótipos, no acervo, 32,5% dos exemplares são representantes do Devoniano e Permiano, 46,5% do Cretáceo e 21% do Cenozóico, que correspondem a 19 gêneros e 36 espécies. Devido a configuração cartilaginosa do seu esqueleto, o registro fóssil restringe-se a partes mineralizadas como dentes, escamas, espinhos de nadadeiras e cefálicos. Eventualmente, ocorre a preservação de um esqueleto completo incluindo partes moles como o Tribodus limae Brito & Ferreira, 1989. Do Paleozóico, destacam-se os espinhos de Xenacanthiformes e pertencem ao acervo os holótipos de Xenacanthus tocantinsensis Santos & Salgado, 1970; Xenacanthus albuquerquei (Santos, 1946 e Xenacanthus santaritensis Ragonha, 1986. Da ordem Ctenacanthiformes há os holótipos de Ctenacanthus gondwanus Santos, 1947 e Ctenacanthus maranhensis Santos, 1946; há um representante ainda, dos Eugeneodontiformes, síntipos de Anisopleurodontis pricei Santos 1994. Entre os seláquios cretáceos estão os Lamniformes, com os exemplares de Cretolamna serrata, (Agassiz, 1843 e Scapanorhynchus rapax (Quaas, 1902. Os Hibodontiformes constituem o grupo mais representativo do mesozóico, são espinhos de nadadeiras, espinhos cefálicos e alguns dentes de Hybodus sp. O holótipo de Hybodus florencei (Moraes Rego, 1960 da Formação Corumbataí, bem como o parátipo de Tribodus limae Brito & Ferreira 1989; da Formação Santana, bacia do Araripe, fazem parte do acervo do MCTer. Dos seláquios cenozóicos estão os representantes da Formação Pirabas, Mioceno do Estado do Pará, dos quais constam dois holótipos, Carcharhinus ackermanii, Santos & Travassos 1960 e Galeocerdo paulinoi Santos & Travassos, 1960; e um dente de Carcharocles megalodon (Agassiz,1835, o maior tubarão carnívoro já existente e alguns peixes fósseis que

  3. Análise do uso da terra na microbacia do Arroio do Meio - Santa Maria - RS, por Sistema de Informações Geográficas e imagem de satélite

    Directory of Open Access Journals (Sweden)

    Piroli Edson Luís

    2002-01-01

    Full Text Available O objetivo desse trabalho foi verificar a viabilidade do uso de um Sistema de Informações Geográficas (SIG e a imagem de satélite para a análise do uso atual da terra e localização de áreas onde possam estar ocorrendo conflitos entre capacidade e uso do solo, na microbacia hidrográfica do Arroio do Meio. Foram utilizadas técnicas de geoprocessamento, como álgebra entre mapas, consulta ao banco de dados e reclassificação de imagens. Uma microbacia foi escolhida como objeto deste estudo, por ser considerada por muitos autores como sendo uma das melhores unidades para o planejamento e desenvolvimento sócioeconômico dos habitantes do meio rural. Na microbacia estudada, foram encontrados 555ha cobertos com florestas, compreendendo 24% da área total. As lavouras com área de 1.314ha ocupam a maior parte da microbacia (56%. Os campos de pastagens cobrem 184ha, ou seja, 8% da área total. As áreas alagadas representam 11% da área da microbacia, tendo respectivamente 265ha. Foram detectados ainda, 31ha sombreados (1% onde não se determinou com exatidão o uso da terra. Nas áreas com declividade superior a 47%, foram detectados 32ha sem cobertura de florestas, perfazendo 1,4% da área da microbacia. Em declives superiores a 30%, existem 71ha (3% sendo usados para a agricultura. A área ocupada com Chernossolos e Neossolos Litólicos, unidade de mapeamento Ciríaco-Charrua em declividade maior que 30% sem cobertura florestal é de 14ha (0,6%. De acordo com a declividade e o solo, as áreas de conflito alcançam 5% da área total, o que demonstra que, na maior parte da microbacia, a terra está sendo usada de acordo com sua capacidade.

  4. Dinâmica demográfica e uso da terra no cerrado brasileiro: reflexões a partir da experiência do Padap

    Directory of Open Access Journals (Sweden)

    Mauro Augusto dos Santos

    2012-06-01

    Full Text Available Com base nas teorias de desenvolvimento da fronteira e nas abordagens de estratégias de sobrevivência, este artigo ilustra o processo de colonização e dinâmica de uso do solo do Cerrado brasileiro, destacando a importância da migração, das associações agrícolas e do governo em contribuir para o sucesso de uma área de assentamento voltada para a intensificação de capital. Para ilustrar este processo com um estudo de caso, foi realizada uma pesquisa com os pioneiros na região do Programa de Assentamento Dirigido do Alto Paranaíba (PADAP durante 2008 e 2009. Nossos resultados sugerem que a segunda geração procura emprego urbano e educação, com a migração rural-urbana se tornando uma componente chave da dinâmica de fronteira recente. O esvaziamento da fronteira, induzido pela emigração da segunda geração, parece funcionar como um incentivo, ao invés de uma restrição ao trabalho. Com uma combinação bem sucedida de provisão governamental de assistência técnica e crédito subsidiado pela Cooperativa Agrícola de Cotia, os pequenos agricultores foram capazes de adotar tecnologias de capital intensivo e experimentar novas culturas mais rentáveis, gerando maiores retornos agrícolas. Seguindo outros estudos que trabalham com a dinâmica de fronteira em outros lugares, este artigo contribui para a literatura através da combinação de teorias da economia e da geografia espacial, juntamente com quadros de desenvolvimento de fronteira, para compreender a dinâmica de uso do solo no Padap.

  5. DINÂMICA ESPACIAL E TEMPORAL DO USO DA TERRA NO MUNICÍPIO DE SEROPÉDICA, RIO DE JANEIRO, BRASIL

    Directory of Open Access Journals (Sweden)

    Roberto Diego Bezerra da Silva, Rafael Coll Delgado, Gustavo Bastos Lyra, José Francisco de Oliveira Júnior, Rafael de Ávila Rodrigues, Ana Carolina Cardozo, Felipe Gomes Brasileiro

    2014-08-01

    Full Text Available Foram avaliados a dinâmica espaço-temporal do uso e cobertura da terra entre os anos de 1990 e 2010 no município de Seropédica, Região Metropolitana do Rio de Janeiro (RMRJ. Foram utilizadas imagens TM (Thematic Mapper Landsat 5 e os métodos de classificações supervisionadas baseado nos algoritmos da Mínima Distância (MINIDIST, Máxima Verossimilhança (MAXVER e distância de Mahalanobis (MAHAL. Os resultados obtidos de 1990 mostraram que a classificação MINIDIST superestimou as classes de áreas de água (5,02%, mata (8,94%, solo exposto (16,05% e pastagem (59,33%, respectivamente. O MINIDIST em 1990 subestimou a classe área urbana (10,66% comparado com os demais métodos. As classes pastagem (59%, mata (20,68% e água (2,25% foram superestimadas pelo MINIDIST, enquanto que para as classes espectrais de solo exposto (0,92%, área urbana (11,54% e eucalipto (5,81% ocorreram subestimativa comparado aos métodos MAHAL e MAXVER em 2010. O viés médio mostrou que os valores de área para ambos os classificadores foram superestimados em relação aos dados do projeto SOS Mata Atlântica. Os índices de vegetação mostraram-se compatíveis com a literatura, às exceções foram às discrepâncias na estimativa de área atribuídas à transição de períodos secos e chuvosos que ocorreram antes da passagem do satélite sobre a região. Ressalta-se que todos os classificadores utilizados neste estudo são passíveis de erro, ou seja, os classificadores foram desenvolvidos na tentativa de aperfeiçoarem os trabalhos de interpretação visual em Seropédica.

  6. DINÂMICA ESPACIAL E TEMPORAL DO USO DA TERRA NO MUNICÍPIO DE SEROPÉDICA, RIO DE JANEIRO, BRASIL

    Directory of Open Access Journals (Sweden)

    Roberto Diego Bezerra da Silva

    2015-09-01

    Full Text Available Foram avaliados a dinâmica espaço-temporal do uso e cobertura da terra entre os anos de 1990 e 2010 no município de Seropédica, Região Metropolitana do Rio de Janeiro (RMRJ. Foram utilizadas imagens TM (Thematic Mapper Landsat 5 e os métodos de classificações supervisionadas baseado nos algoritmos da Mínima Distância (MINIDIST, Máxima Verossimilhança (MAXVER e distância de Mahalanobis (MAHAL. Os resultados obtidos de 1990 mostraram que a classificação MINIDIST superestimou as classes de áreas de água (5,02%, mata (8,94%, solo exposto (16,05% e pastagem (59,33%, respectivamente. O MINIDIST em 1990 subestimou a classe área urbana (10,66% comparado com os demais métodos. As classespastagem (59%, mata (20,68% e água (2,25% foram superestimadas pelo MINIDIST, enquanto que para as classes espectrais de solo exposto (0,92%, área urbana (11,54% e eucalipto (5,81% ocorreram subestimativa comparado aos métodos MAHAL e MAXVER em 2010. O viés médio mostrou que os valores de área para ambos os classificadores foram superestimados em relação aos dados do projeto SOS Mata Atlântica. Os índices de vegetação mostraram-se compatíveis com a literatura, às exceções foram às discrepâncias na estimativa de área atribuídas à transição de períodos secos e chuvosos que ocorreram antes da passagem do satélite sobre a região. Ressalta-se que todos os classificadores utilizados neste estudo são passíveis de erro, ou seja, os classificadores foram desenvolvidos na tentativa de aperfeiçoarem os trabalhos de interpretação visual em Seropédica.

  7. Fósseis da Localidade de Nova Iorque, Maranhão, no Acervo do Museu de Ciências da Terra / Departamento Nacional da Produção Mineral

    Directory of Open Access Journals (Sweden)

    Diogo Jorge de Melo

    2005-01-01

    Full Text Available A coleção de fósseis do Museu de Ciências da Terra do Departamento Nacional da Produção Mineral (MCTer/DNPM, está subdividida em diversas coleções, Paleobotânica, Invertebrados, Peixes, Répteis e Mamíferos. Os fósseis da localidade de Nova Iorque estão distribuídos nas coleções de Peixes e de Paleobotânica e trata-se de uma ocorrência fossilífera única no Estado do Maranhão, dentro da bacia do Parnaíba, que hoje encontra-se submersa pelas águas da represa Boa Esperança. Sua idade atualmente é atribuída ao Plioceno (Lima, 1991. O início desta coleção se deu em 1936, quando o então diretor do Serviço Geológico e Mineralógico, Euzébio Paulo de Oliveira, determinou ao sub-assistente Josalfredo Borges a realização de vários trabalhos geológicos nos estados do Maranhão e do Piauí. Estes trabalhos foram realizados no período de abril a outubro do mesmo ano e constava da exploração dos folhelhos da localidade de Nova Iorque. Segundo Josalfredo Borges, o afloramento situavase à margem esquerda do rio Parnaíba e possuía 35 metros de extensão, e foi o único sobrevivente à erosão. Quanto à metodologia de coleta, menciona que foram feitos dois cortes distintos, onde conseguiu-se determinar cinco composições geológicas diferentes, de cima para baixo: 3,60 m de uma argila vermelha, arenosa; 2,50 m de um conglomerado com seixos regulares, bem cimentado; 0,80 m de um folhelho argiloso verde escuro ou azulado e cinza-claro depois de coletado. Neste último sedimento foram encontradas algumas folhas e uma grande quantidade de peixes de pequeno porte, com até 25 centímetros de comprimento; 0,30 m de um folhelho arenoso de coloração cinza-escuro, cinzaclaro quando exposto, com abundância de folhas, mas poucos peixes; 0,50 m de um folhelho argiloso, com direção E-W, tendo um mergulho de 110 na direção norte (Oliveira, 1936. Constam no catálogo de peixes fósseis 42 lotes de exemplares provenientes desta

  8. ALMA, APEX and beyond

    Science.gov (United States)

    Zwaan, M.; Testi, L.

    The Atacama Large Millimeter/submillimeter Array (ALMA) is currently being constructed at the 5000m Chajnantor plateau in the Chilean Andes. ALMA has been designed and is being built to deliver transformational science in the millimeter and submillimeter regime for many years to come. We briefly describe the project status and timeline. The Atacama Pathfinder Experiment (APEX), built at the same site, is already operational and proves to be an effective survey instrument. We discuss which niches in millimeter/submillimeter astronomy will remain open for a possible facility in Antarctica.

  9. Mapeamento das áreas de preservação permanente e identificação dos conflitos de uso da terra na sub-bacia hidrográfica do Rio Camapuã/Brumado

    Directory of Open Access Journals (Sweden)

    Andrea Brandão Gonçalves

    2012-08-01

    Full Text Available O objetivo deste trabalho foi mapear e quantificar as áreas de preservação permanente (APPs de acordo com a Resolução nº 303/02 do CONAMA para, então, com base no mapa de uso da terra e cobertura vegetal, identificar e quantificar os eventuais conflitos de uso da terra, com vistas a nortear o cumprimento da lei e promover o uso adequado dos recursos da sub-bacia hidrográfica do rio Camapuã/Brumado, MG. Utilizaram-se uma imagem digital do sensor ETM+/LANDSAT 7, bases cartográficas planialtimétricas do IBGE para a área de estudo, e os softwares Anudem 5.2, Erdas Imagine 9.2 e ArcGIS 9.3. As APPs ocuparam 63.095 ha, representando 57,0% da área total da sub-bacia (110.711,9 ha. Com relação às categorias de APPs, o terço superior da bacia, ao longo das linhas de cumeada, correspondeu a 52,6% dos 63.095 ha; as zonas de proteção às margens dos cursos d'água, a 31,4%; a proteção das nascentes, a 15,6%; e as encostas com declividade superior a 45° e o terço superior de morros totalizaram 0,4%. As áreas de terço superior da bacia, ao longo das linhas de cumeada, foram as mais desrespeitadas (55,9%, seguidas das margens de curso d'água (23,12%, proteção de nascentes (20,83%, encostas com declividade superior a 45° (0,3% e terço superior de morros (0,1%. Foram identificados 21.939,3 ha de APPs sendo explorados por atividades agropecuárias, o que representa 34,8% do total de APPs. Entretanto, constatou-se que 30.734,3 ha dos 47.616,9 ha situados fora das áreas de APP, i.e., 64,5% das áreas legalmente passíveis de conversão de uso da terra, estavam cobertos por vegetação nativa. Encontraram-se sólidas evidências de que a falta de conhecimento a respeito da espacialização das APPs dentro da propriedade é a principal causa do descumprimento da lei. A delimitação e espacialização das APPs pelo geoprocessamento viabilizam a aplicação da legislação florestal, contribuindo notoriamente para minimizar os conflitos

  10. Planejamento integrado de uso da terra: uma disciplina integradora no ensino da agronomia na UFRGS Integrated land use planning: an integrational agronomy course at the Federal University of Rio Grande do Sul

    Directory of Open Access Journals (Sweden)

    Elvio Giasson

    2005-12-01

    Full Text Available A disciplina Planejamento Integrado de Uso da Terra, do Curso de Agronomia da Universidade Federal do Rio Grande do Sul, associa os conhecimentos da área de solos com os demais do Curso de Agronomia, interligando-os e dando-lhes consistência e significado. A disciplina vale-se do planejamento integrado para reunir o conhecimento agronômico num projeto de exploração e desenvolvimento sustentável de uma ou mais propriedades rurais por meio de uma seqüência de atividades, assim definidas: caracterização regional, levantamento dos recursos naturais existentes na propriedade, levantamento do seu uso atual, diagnóstico do sistema produtivo e elaboração de uma proposta de exploração sustentável da propriedade, que é apresentada para a comunidade local. Os resultados desta experiência demonstram que a disciplina tem sido muito proveitosa no treinamento e aperfeiçoamento dos estudantes, tendo recebido suporte e apoio por parte do corpo discente, dos agricultores e das organizações envolvidas no processo de planejamento agrícola.The Integrated Land Use Planning course of the Agronomy School of the Federal University of Rio Grande do Sul State, Porto Alegre, Brazil, associates Soil Science with other courses taught in Agronomy, establishing consistent and meaningful crosslinks. The course uses integrated land use planning to feed the compiled agronomical knowledge into a project of sustainable land use for one or more farms. The following sequence of procedures is used for this purpose: regional characterization, survey of existing natural resources, ascertainment of their actual use, production diagnosis, and elaboration of a project for sustainable farm use, which is presented to the local community. Results showed that the course was most useful to train and improve the students' abilities and was supported by students, farmers and organizations engaged in land use planning.

  11. CURRENT LAND USE IN ILHA SOLTEIRA, SÃO PAULO STATE, BRAZIL: ENVIRONMENTAL ASSOCIATED RISKS = USO ATUAL DA TERRA NO MUNICÍPIO DE ILHA SOLTEIRA, SP, BRASIL: RISCOS AMBIENTAIS ASSOCIADOS

    Directory of Open Access Journals (Sweden)

    André Luis Altimare

    2004-01-01

    Full Text Available This paper presents the use of the Geographical Information System SPRING/INPE for mapping the current usage of the land in Ilha Solteira, SP, Brazil. This map was utilized as a base to determine the environmental risks resulting from antrophic activities to hydrography watershed components. It was also presented a discussion on the state of degradation of the landscape, with suggestions of options to the definition of strategies of environmental conservation. = Esse trabalho apresenta a utilização do sensoriamento remoto e do geoprocessamento na elaboração da Carta de Uso Atual da Terra no Município de Ilha Solteira, SP. Com base nessa carta foram identificados possíveis riscos ambientais para os ecossistemas aquáticos, associados aos usos atuais da terra. Discutiu-se ainda, o estado atual de degradação da paisagem, visando a definição de estratégias para a conservação ambiental.

  12. Interacção e conhecimento : o trabalho colaborativo em aulas de Ciências da Terra e da Vida, no 10º ano de escolaridade

    OpenAIRE

    Almeida, Paulo Jorge de Carvalho Correia de, 1969-

    2004-01-01

    Tese de mestrado em Educação (Didática das Ciências), apresentada à Universidade de Lisboa através da Faculdade de Ciências, 2004 Vivemos tempos de mudança. Preparar os alunos para uma cidadania activa constitui um dos principais contributos do sistema educativo numa sociedade de conhecimento, caracterizada pelos avanços da Ciência e Tecnologia. Os alunos devem ter acesso a uma educação que fomente o desenvolvimento de competências sociais, cognitivas e afectivas, bem como a...

  13. ALMA AND HOT STARS

    Directory of Open Access Journals (Sweden)

    W. R. F. Dent

    2010-01-01

    existentes. Esto permitir a signi cativos \\breakthroughs" en muchas reas de la astronom a, incluyendo el estudio de estrellas calientes. Las capacidades de ALMA se describen, junto con algunas de las potenciales reas de impacto en la investigaci n de estrellas calientes.

  14. THE ALMA PROJECT

    Directory of Open Access Journals (Sweden)

    L.-Å. Nyman

    2009-01-01

    Full Text Available The Atacama Large Millimeter/Submillimeter Array (ALMA is an international millimeter-wavelength radio telescope under construction in the Atacama Desert of northern Chile. ALMA will be situated on a high-altitude site at 5000 m elevation which provides excellent atmospheric transmission over the instrument wavelength range of 0.3 to 9 mm. ALMA will be comprised of two key observing components a main array of fty 12 m diameter antennas arranged in a multiple con gurations ranging in size from 0.15 to 18 km, and a set of four 12 m and twelve 7 m antennas operating in a compact array 50 m in diameter (known as the Atacama Compact Array, or ACA, providing both interferometric and total-power astronomical information. High-sensitivity dual-polarization 8 GHz-bandwidth spectral-line and continuum measurements between all antennas will be available from two exible digital correlators. At the shortest planned wavelength and largest con guration, the angular resolution of ALMA will be 0.00500. The instrument will use superconducting (SIS mixers to provide the lowest possible receiver noise contribution, and special-purpose water vapor radiometers to assist in calibration of atmospheric phase distortions. Early science observations are expected in 2010, with full operations in 2012.

  15. Dinâmica demográfica e uso da terra no cerrado brasileiro: reflexões a partir da experiência do Padap

    OpenAIRE

    Mauro Augusto dos Santos; Alisson Flávio Barbieri; Gilvan Ramalho Guedes; Carla Jorge Machado; José Alberto Magno de Carvalho

    2012-01-01

    Com base nas teorias de desenvolvimento da fronteira e nas abordagens de estratégias de sobrevivência, este artigo ilustra o processo de colonização e dinâmica de uso do solo do Cerrado brasileiro, destacando a importância da migração, das associações agrícolas e do governo em contribuir para o sucesso de uma área de assentamento voltada para a intensificação de capital. Para ilustrar este processo com um estudo de caso, foi realizada uma pesquisa com os pioneiros na região do Programa de Ass...

  16. Variabilidade espacial e temporal do potencial mátrico da água em terra roxa estruturada Spatial and temporal variability of soil water matric potential in a dark red latosol

    OpenAIRE

    F.B.P. Pacheco; REICHARDT K.; R.L. Tuon; O.O.S. Bacchi; M.M. Villagra

    1994-01-01

    As variabilidades de medidas de potencial mátrico da água no solo e de gradiente de potencial hidráulico são analisadas utilizando conceitos geoestatísticos e estatística da distribuição normal. São analisados 25 pares de dados, coletados ao longo de uma transecção de terra roxa estruturada, de 125 m de comprimento. Autocorrelogramas e semivariogramas não indicaram dependência espacial nas variáveis estudadas. A variabilidade do potencial mátrico da água no solo, medida através de tensiômetro...

  17. Variabilidade espacial e temporal do potencial mátrico da água em terra roxa estruturada Spatial and temporal variability of soil water matric potential in a dark red latosol

    Directory of Open Access Journals (Sweden)

    F.B.P. Pacheco

    1994-08-01

    Full Text Available As variabilidades de medidas de potencial mátrico da água no solo e de gradiente de potencial hidráulico são analisadas utilizando conceitos geoestatísticos e estatística da distribuição normal. São analisados 25 pares de dados, coletados ao longo de uma transecção de terra roxa estruturada, de 125 m de comprimento. Autocorrelogramas e semivariogramas não indicaram dependência espacial nas variáveis estudadas. A variabilidade do potencial mátrico da água no solo, medida através de tensiômetros, é menor do que a variabilidade do gradiente de potencial hidráulico. Este último apresentou alta variabilidade, a ponto de comprometer seu uso em estimativas de fluxos de água no solo.Variabilities of soil water matric potential and of hydraulic gradients are analysed using geostatistical concepts and normal distribution statistics. Twenty five data pairs, collected along a 125 m transect of a dark red latosol (terra roxa estruturada are analysed using autocorrelograms and semivariograms. No spatial dependence was found for both variables. The variability of soil water matric potential, measured by tensiometry, is less than the variability of hydraulic gradients. This last variable presented a high variability, to the point of compromising its use in soil water flux estimatives.

  18. Desintensificação do uso da terra e sua relação com a erosão do solo Disintensification of land use and its relation with soil erosion

    Directory of Open Access Journals (Sweden)

    Alexandre ten Caten

    2012-09-01

    Full Text Available A conservação dos recursos naturais tais como solo e água, deve ser preocupação de governos e instituições. Processos erosivos são responsáveis pela degradação desses recursos, em várias partes do globo. Objetivou-se, com este estudo, avaliar a dinâmica da cobertura da terra em uma região de topografia complexa e empregar a equação universal de perda de solos modificada (RUSLE para quantificar a perda de solos em decorrência da erosão. O uso da terra no distrito de Vale Vêneto, município de São João do Polêsine na região central do Estado do Rio Grande do Sul, foi avaliado em imagens Landsat nos anos de 1988, 2000 e 2007. A análise espaço temporal do uso da terra indica que as áreas de floresta tiveram um aumento de 16,2% no período de 19 anos. As áreas de agricultura sofreram uma diminuição de 57,5%, no mesmo período. A erosão bruta específica sofreu uma redução de 44%, de 1988 a 2007. Verificou-se que a desintensificação do uso da terra leva a uma configuração mais favorável de conservação do solo e mitigação da erosão. É provável que as mudanças ocorridas no uso da terra estejam relacionadas à não reprodução das famílias rurais que, anteriormente, cultivavam áreas impróprias para a atividade agrícola nesta região.Conservation of natural resources such as soil and water should be a concern of governments and institutions. Erosion processes are responsible for the degradation of these important resources in many parts of the globe. The aim of this study was to assess the land cover dynamics in a region of complex landscape and employ the modified universal soil loss equation (RUSLE to quantify soil loss due to erosion. The land use in the district of Vale Veneto, São João do Polêsine in central region of Rio Grande do Sul, was evaluated in Landsat images of 1988, 2000 and 2007. The spatial and temporal analysis of the land use indicates that the forest areas had a 16.2% increase over

  19. Herbicidas inibidores da ALS aplicados em pós-emergência no arroz de terras altas ALS-inhibiting herbicides applied in upland-rice post-emergence

    OpenAIRE

    Petter, F.A.; L.P. Pacheco; A.M. Zuffo; F Alcântara Neto; W.R.M. Ribeiro

    2012-01-01

    Este trabalho teve por objetivo avaliar a seletividade de herbicidas inibidores da ALS recomendados para arroz irrigado, quando aplicados em diferentes estádios de desenvolvimento do arroz de terras altas. O experimento foi conduzido em campo, no município de Nova Xavantina-MT, no período de novembro de 2009 a abril de 2010. O delineamento experimental foi o de blocos ao acaso, em esquema fatorial 5 x 3, composto pelos tratamentos herbicidas penoxsulam (36 g ha-1), bispyribac-Na (50 g ha-1), ...

  20. Necessidades Hídricas e Resposta da Oliveira (olea europaea l.) Ao Deficit Hídrico na Região da Terra Quente

    OpenAIRE

    Silva, Anabela Afonso Fernandes

    2008-01-01

    A oliveira (Olea europaea L.) tem sido tradicionalmente cultivada em condições de sequeiro. Contudo, nos últimos anos tem-se assistido a uma expansão do olival em condições de regadio, o que tem suscitado uma série de questões, nomeadamente sobre as necessidades hídricas e a resposta produtiva resultante. Foi neste sentido que se traçaram os objectivos gerais desta desta Tese: quantificar as necessidades de rega e caracterizar a resposta produtiva da oliveira na cv. “Cobrançosa” em função de ...

  1. Modelagem da dinâmica de uso e ocupação da terra no município de Pombal – PB

    Directory of Open Access Journals (Sweden)

    J. S. Almeida

    2015-12-01

    Full Text Available Resumo: O presente estudo objetivou aplicar álgebra de mapas, por meio de sobreposição booleana na determinação da dinâmica do uso e ocupação do solo, realizado na cidade de Pombal, Paraíba - Brasil. Foram adotados procedimentos de análise espacial utilizando o SIG/SPRING-5.2, duas imagens 2002/2012 foram registradas, filtradas, classificadas e posteriormente cruzadas por inferência booleana. O principal objetivo da pesquisa foi verificar a dinâmica de uso e ocupação do solo no município de Pombal-PB, cruzando imagens de diferentes sensores orbitais e analisando a dinâmica espacial e temporal da paisagem. Após a análise, constatou-se que houve um crescimento das atividades agropecuárias de 20,3 %, e 3,1 % das áreas com Agricultura Irrigada as margens dos rios Piancó e Piranhas. A Caatinga Estépica Arborizada e Florestada avançaram 23,0 % sobre as demais coberturas e uso do solo, além de 3,8 % das áreas sofreram regeneração, portanto, a qualidade da paisagem teve uma sensível piora em termos ambientais, o que foi determinado pelo aumento das áreas com solo exposto degradado e aumento do nível de alterações antrópicas.Modeling of the use of dynamic and land occupation in the municipality of Pombal - PBAbstract: This study aimed to apply map algebra by means of boolean overlap in determining the dynamics of the use and occupation of land, in the city of Pombal, Paraíba – Brazil. Spatial analysis procedures were adopted using the SIG/SPRING-5.2, two images 2002/2012 were recorded, filtered, sorted and then crossed by inference boolean. The main objective of the research was to investigate the dynamics of use and occupation of land in the municipality of Pombal-PB, crossing images from different satellite sensors and analyzing spatial and temporal dynamics of the landscape. After analysis, it was found that there was an increase of agricultural activities 20.3%, and 3.1% of the areas with Irrigated Agriculture

  2. ALMA European Project Scientist Appointed

    Science.gov (United States)

    Wilson, T.

    2007-06-01

    The new ALMA European Project Scientist is Dr. Leonardo Testi. He took up the appointment in May 2007. Leonardo Testi received his Ph.D. from the University of Florence in 1997. Subsequently he was a postdoctoral fellow at the Owens Valley Radio Observatory of Caltech. In 1998 he joined staff of the Arcetri Astrophysical Observatory, and later on of INAF, for which he also served on the Science Council. Leonardo has been chair of the European ALMA Science Advisory committee and a member of the ALMA Science Advisory committee, so he well knows the details of the project as well as the science that can be carried out with ALMA.

  3. A história dos Kaingang da Terra Indígena Linha Glória, Estrela, Rio Grande do Sul/Brasil: Sentidos de sua (re)territorialidade / The history of Kaigang people from Linha Glória indigenous land, Estrela, Rio Grande do Sul/Brazil: Senses of their (re)ter..

    OpenAIRE

    Juciane Beatriz Sehn da Silva; Luís Fernando da Silva Laroque

    2012-01-01

    O presente trabalho versa sobre a história do grupo indígena Kaingang da Terra Indígena Linha Glória, localizada no município de Estrela, Vale do Taquari, Rio Grande do Sul, no que se refere as suas movimentações pelo tradicional território Kaingang. Através deste estudo, temos a intenção de mostrar que este grupo, apesar de ter permanecido fora das terras indígenas tomadas como oficiais pelo Estado Nacional, onde residem muitos de seus parentes, continuou a vivenciar práticas culturais da tr...

  4. A importância das áreas ripárias para a sustentabilidade hidrológica do uso da terra em microbacias hidrográficas

    Directory of Open Access Journals (Sweden)

    Cláudia Mira Attanasio

    2012-01-01

    Full Text Available Zonas ripárias são áreas de saturação hídrica, permanente ou temporária, cuja principal função é a proteção dos recursos hídricos de uma microbacia. Essa pesquisa comparou a adequação do uso do solo de dois cenários de planejamento agrícola de uma microbacia: o cenário convencional, representando o método usualmente empregado, que apenas considera as classes de capacidade de uso da terra, e o cenário hidrológico, que inclui a delimitação e avaliação das zonas ripárias. Um estudo de caso foi realizado na Microbacia do Ribeirão São João (3.656 ha, no município de Mineiros do Tietê (São Paulo, Brasil. Mapas de Classe de Capacidade de Uso da Terra e de Adequação do Uso do Solo foram elaborados, utilizando o Sistema de Informação Geográfica (SIG, para a construção dos cenários convencional e do proposto. Excluindo a Área de Preservação Permanente (APP, o cenário convencional indicou que 59,0% da área destinada à agricultura está adequadamente utilizada, 28,2% está subutilizada e 2,6% está sobreutilizada. O cenário proposto ou hidrológico, com inclusão da identificação da zona ripária (24,9% da microbacia mostrou que muitas áreas que, no cenário convencional, possuem pouca restrição para o cultivo intensivo, como as classes II e III, são zonas ripárias, de sensibilidade hidrológica. Existem dentro dos limites da zona ripária 38,9% de classe de capacidade de uso III e 49,5% de classe IV. O planejador, desconsiderando a zona ripária, pode colocar em risco áreas vitais que, se degradadas, representam danos para a saúde e resiliência da microbacia.

  5. A nova edição de Why Suyá Sing, de Anthony Seeger, e alguns estudos recentes sobre música indígena nas terras baixas da América do Sul

    Directory of Open Access Journals (Sweden)

    Luís Fernando Hering Coelho

    2007-04-01

    Full Text Available Lançado originalmente em 1987, Why Suya Sing? ganhou uma nova edição norte-americana em 2004. Apesar de constituir um marco teórico e etnográfico importante nos campos da etnologia indígena e da antropologia da música, o livro ainda não conta com uma tradução para o português. Neste ensaio, oferece-se uma leitura da obra, buscando resumir alguns de seus pontos principais, junto a uma contextualização geral sumária dos estudos sobre povos Gê, e uma nota breve sobre alguns desenvolvimentos recentes nas pesquisas sobre música indígena nas terras baixas da América do Sul.Originally published in 1987, Why Suyá Sing? acquired a new US edition in 2004. Despite constituting a theoretical and ethnographic landmark in the fields of indigenous ethnology and anthropology of music, Seeger’s book has yet to be translated into Portuguese. This essay offers a reading of the work, looking to resume some of its key points, along with a brief overall contextualization of the studies on Gê peoples, and a short note on some of the recent developments in the research on indigenous music in the South American lowlands.

  6. Admit: Alma Data Mining Toolkit

    Science.gov (United States)

    Friedel, Douglas; Looney, Leslie; Xu, Lisa; Pound, Marc W.; Teuben, Peter J.; Rauch, Kevin P.; Mundy, Lee; Kern, Jeffrey S.

    2015-06-01

    ADMIT (ALMA Data Mining Toolkit) is a toolkit for the creation and analysis of new science products from ALMA data. ADMIT is an ALMA Development Project written purely in Python. While specifically targeted for ALMA science and production use after the ALMA pipeline, it is designed to be generally applicable to radio-astronomical data. ADMIT quickly provides users with a detailed overview of their science products: line identifications, line 'cutout' cubes, moment maps, emission type analysis (e.g., feature detection), etc. Users can download the small ADMIT pipeline product (data mining between many astronomical sources and line transitions will be possible. Users will also be able to enhance the capabilities of ADMIT by creating customized ADMIT tasks satisfying any special processing needs. Future implementations of ADMIT may include EVLA and other instruments.

  7. Dört Telli Klasik Kemençe Eğitiminde Usta İcracılığa Yönelik Dağar ve Çalma Önerileri

    OpenAIRE

    Kaya, Filiz

    2013-01-01

    Bu araştırma, Türk müziğinde usta icracılığın önemine değinerek, dört telli kemençe eğitiminde usta icracılığa yönelik dağar ve çalma önerileri sunmayı amaçlamaktadır. Araştırmanın evrenini, Türkiye’de kemençe alanında eğitim ve öğretim yapan üniversitelerin ilgili bölümleri, Türkiye Radyo Televizyon (TRT) Kurumu bünyesinde faaliyet gösteren TRT Radyoları, Kültür ve Turizm Bakanlığı’na bağlı devlet koroları ile özel kurum ve kuruluşlarda çalışan kişiler, örneklemini ise araştırmaya gönüllü...

  8. Extratores e disponibilidade de micronutrientes em Terra Preta de Índio da Amazônia Central Extractants and availability of micronutrients in Central Amazonian dark earth soil

    Directory of Open Access Journals (Sweden)

    Adônis Moreira

    2009-06-01

    Full Text Available O objetivo deste trabalho foi avaliar a disponibilidade de B, Cu, Fe, Mn e Zn em solos com horizonte A antrópico (Terra Preta do Índio - TPI da Amazônia Central com as soluções extratoras Mehlich 1 (M1, Mehlich 3 (M3 e DTPA-TEA. Foram utilizadas dezesseis amostras de terra preta de diferentes profundidades provenientes de dez sítios arqueológicos e de cinco classes de solos representativas da região (Espodossolo, Neossolo, Latossolo, Argissolo e Cambissolo. Na Terra Preta de Índio, o extrator DTPA-TEA extraiu as maiores quantidades de Cu e Fe disponível, enquanto o Mehlich 1 extraiu mais Mn e Zn. Nas condições edafoclimáticas estudadas, o extrator Mehlich 1 mostrou, na média, maior sensibilidade quando comparado com os extratores Mehlich 3 e o DTPA-TEA. Os melhores coeficientes de correlação entre os extratores foram obtidos com: Cu disponível (Mehlich 3 e DTPA-TEA, Fe disponível (Mehlich 1 e DTPATEA, Mn e Zn disponível (Mehlich 1 e Mehlich 3. As faixas alta, média e baixa originárias de outras regiões pode levar a erros de interpretação na diagnose da disponibilidade de micronutrientes nas terras pretas de índio. O Espodossolo apresentou a maior concentração de B disponível.The objective of this work was to compare extractants solutions (Mehlich 1, Mehlich 3 and DTPA-TEA evaluating the availability of B, Cu, Fe, Mn and Zn in Amazonian Dark Earth (ADE soils with higher fertility occurring in scattered patches throughout the Amazon, called Terra Preta do Índio (TPI. Sixteen samples of different depths were taken from ten archeology sites, and five representative soil classes of the region (Oxisol, Inceptsol, Ultisol, Entisol and Spodsol were used. The DTPA-TEA solution extracted more Cu and Fe available, while Mehlich 1 solution extracted more Mn and Zn. At the edaphoclimatic conditions studied, the Mehlich 1 extractant showed better sensibility than Mehlich 3 and DTPA-TEA extractants. The best coefficients between

  9. Pseudoescorpiões (Arachnida da vegetação de sub-bosque da floresta primária tropical de terra firme (Coari, Amazonas, Brasil Pseudoscorpions (Aracnida in the undergrowth vegetetion in dryland forest in Coari, Amazonas, Brazil

    Directory of Open Access Journals (Sweden)

    Nair Otaviano Aguiar

    2003-01-01

    Full Text Available Foi encontrada uma riqueza de 15 espécies de pseudoscorpiões, de 12 gêneros e 5 famílias (Chthoniidae, Geogarypidae, Olpiidae, Atemnidae e Chernetidae, habitando diferentes plantas da vegetação do sub-bosque, em floresta primária de terra firme, no alto rio Urucu, Coari, Amazonas, no período de 1991 a 1996. As plantas foram examinadas pelo método de "bateção". Apolpium aff. vastum foi à espécie mais freqüente e abundante sobre as plantas. Dentre os tipos de plantas avaliados, as maiores diversidades de espécies de pseudoscorpiões foram registradas nas pequenas palmeiras, tanto com fronde junto ao chão, como elevada acima do chão. A análise da composição das espécies que ocorreram sobre os diferentes tipos de plantas avaliadas foi realizada pelo "modo-Q", tendo como base a matriz de coeficientes de similaridade de "Jaccard", o que demonstrou maior similaridade entre a fauna das palmeiras e outras plantas que acumulam detritos acima do chão, entre as bromélias e entre aráceas de chão e outras plantas que acumulam detritos junto ao chão.A richness of 15 pseudoscorpion species, 12 genera belonging to 5 families (Chthoniidae, Geogarypidae, Olpiidae, Atemnidae and Chernetidae were found in the undergrowth vegetation of the dryland forest, at the upper Urucu river, Coari, Amazonas, from 1991 to 1996, and was collected by the "beating tray" method. Apolpium aff. vastum was the most frequent and abundant species in the undergrowth forest vegetation. Among the various types of plants examined, the majority of the pseudoscorpions occurred in small palms (in the ground-trenched palms as much as the erect stemmed palms. To appraise the specie's composition of these arachnids found in the different kinds of plants, the Q-mode analysis was used based on Jaccard's similarity coefficients. The coefficients that showed the greatest similarity were between the fauna of the palms and other plants that accumulate litter on top of the

  10. Sistema de suporte à decisão para recomendação de uso e manejo da terra A decision support system for recommending land use and soil management

    Directory of Open Access Journals (Sweden)

    Monica L. Giboshi

    2006-12-01

    Full Text Available Objetivou-se, com este trabalho, o desenvolvimento de um sistema de apoio à decisão para a recomendação de uso e manejo da terra, integrando Sistema Especialista, Sistema de Informações Geográficas, uma base de dados e uma interface para interpretar a entrada de dados do usuário e as mensagens passadas entre os subsistemas. O sistema desenvolvido determina a capacidade de uso da terra; recomenda usos adequados para cada classe de capacidade de uso como também práticas de conservação e manejo do solo e identifica áreas de conflito comparando os mapas de uso da terra com o mapa de capacidade de uso. Todos os resultados podem ser visualizados em janelas do programa, gravados ou impressos em forma de relatório. A área utilizada para testar o sistema é o Município de Santo Antônio do Jardim, SP. O sistema mostrou ser uma ferramenta poderosa e eficaz, permitindo avaliar-se uma região, oferecendo suporte para uma tomada de decisão mais fundamentada.The objective of this work was to develop a decision support system to recommend land use and practices for soil conservation and management, which integrates an Expert System, Geographic Information System (GIS, a database and an interface to monitor input and output data and the messages passed between the subsystems. Using soil and slope maps, the developed system determines land capability from information stored in the database and also supplied by SIG; it recommends adequate uses for land capability class as well as practices for soil conservation and management and identifies conflict areas comparing the maps of land use with the land capability. All results can be visualized by the user through windows of the program, recorded or printed in form of report. In order to test the system, the municipality of Santo Antônio do Jardim, in the State of São Paulo, Brazil, was selected. The system is a powerful and efficient tool, permitting the evaluation of a region and thereby offering

  11. Potencialidade do uso da terra na microbacia hidrográfica do córrego do ceveiro na região de Piracicaba Land use potential in the ceveiro stream watershed of Piracicaba

    Directory of Open Access Journals (Sweden)

    Peterson Ricardo Fiorio

    1999-01-01

    Full Text Available O objetivo do presente trabalho foi avaliar a ocupação agrícola da Microbacia Hidrográfica do Ceveiro para o ano de 1995 e estabelecer a sua potencialidade. Para tanto, foi utilizado o Sistema de Análise Ambiental para Planejamento Agrícola. A microbacia localiza-se na região de Piracicaba, SP, com aproximadamente 1990 ha. Predominam os Podzólicos e os solos Litólicos de textura média e argilosa. O uso da terra foi determinado por fotointerpretação, cujos os limites foram digitalizados e cruzados com os dados de declividade e solos, gerando mapas de intensidade de uso e aptidão agrícola. Os dados indicaram que apenas 27% da área da bacia estava sendo utilizada adequadamente, 48% estava sendo sub-utilizada e 23% excessivamente utilizada, com sérios riscos de degradação dos solos. As principais distorções observadas quanto ao uso da terra foram em relação a cultura da cana-de-açúcar, que ocupa áreas destinadas a cultura anual e pastagens.The objective of this work was to evaluate the agricultural potential of the Ceveiro watershed Piracicaba, SP, Brazil, which contains 1990 ha considering available environmental conditions. Medium and clayey textured Ultisols and Entisols predominate. Land use was determined by remote sensing, the limits of the were digitalized and crossed with soils and shape data, using the Environmental Analysis System for Agricultural Planning. These results were then compared with the current land usage patterns that occurred in 1995, to determine if differences existed between current and prescribed land use. In 1995, 48% of the area was being used below its potential use, 27% used appropriately, and 23% used with excessive intensity. The main difference in land use between the appropriately used and excessively used areas was due to sugarcane production.

  12. Microsoft TerraServer

    OpenAIRE

    Barclay, Tom; Eberl, Robert; Gray, Jim; Nordlinger, John; Raghavendran, Guru; Slutz, Don; Smith, Greg; Smoot, Phil; Hoffman, John; Robb III, Natt; Rossmeissl, Hedy; Duff, Beth; Lee, George; Mathesmier, Theresa; Sunne, Randall

    1998-01-01

    The Microsoft TerraServer stores aerial and satellite images of the earth in a SQL Server Database served to the public via the Internet. It is the world's largest atlas, combining five terabytes of image data from the United States Geodetic Survey, Sovinformsputnik, and Encarta Virtual Globe. Internet browsers provide intuitive spatial and gazetteer interfaces to the data. The TerraServer is also an E-Commerce application. Users can buy the right to use the imagery using Microsoft Site Serve...

  13. Características físicas e carbono orgânico de solos sob diferentes tipos de uso da terra Soil physical characteristics and organic carbon content under different land uses

    Directory of Open Access Journals (Sweden)

    Jacson Tavares de Oliveira

    2008-12-01

    Full Text Available Na Bacia Hidrográfica Água Fria, em Barra do Choça (BA, o desenvolvimento da lavoura cafeeira e da pastagem tem sido feito mediante a supressão da vegetação nativa, inclusive em áreas de proteção ambiental. O objetivo deste trabalho foi avaliar os atributos físicos: granulometria, argila dispersa em água, grau de floculação, diâmetro médio ponderado e índice de estabilidade de agregados e C orgânico dos solos submetidos a diferentes tipos de uso da terra na referida bacia. Para as amostragens, foram selecionadas seis glebas: duas de café (cultivo mecanizado e não mecanizado, duas de pastagens e duas de matas nativas, empregadas como referência. Constatou-se que o uso da terra diminuiu a estabilidade de agregados, evidenciada pela redução no diâmetro médio ponderado, pelo aumento dos agregados de menor tamanho e pelos menores teores de C orgânico na seqüência mata-pastagem-cafezal.In the watershed Água Fria, in Barra do Choça (BA, native vegetation and environmentally protected areas have been replaced by coffee and pasture cultivation. This study evaluated the physical characteristics, particle size distribution, water dispersible clay, flocculation, mean weight diameter and aggregate stability index and organic C concentration of soils under different land uses, in the area surroundings the above watershed. Soil samples were collected from six different fields: two coffee plantations (manual and mechanical cultivation, two pastures and two native forest areas were used as references. The different land uses reduced the aggregate stability, as indicated by the reduction of the mean weight diameter, increase of small-sized aggregates and lower organic C contents, in the order forest > pasture > coffee plantation.

  14. ALMA and Cosmology

    CERN Document Server

    Combes, F

    2005-01-01

    ALMA is a privileged instrument to tackle high redshift galaxies, due to the negative K-correction in the millimeter domain. Many dusty star-forming galaxies, invisible in the optical or NIR, will be detected easily through the peak of their emission in the FIR redshifted in the submm between z=10 and z=5. Their mass and dynamics will be determined through the CO lines, together with the efficiency of star formation. Normal intervening galaxies at all z will be studied through absorption lines in front of quasars, exploring the dense tail of the column density spectrum. CMB anisotropies could be detected at the arcsecond scale, the secondary effects (SZ, Vishniak-Ostriker) could test the re-ionization and the nature of dark energy. The detection of the SZ effect on a few arcsec scales will allow to map in detail clusters and proto-clusters.

  15. From Virgil to Alma Mater

    Science.gov (United States)

    Spitz, Ellen Handler

    2007-01-01

    For a college to become an alma mater in the hearts of its students, it must show, true to the Latin meaning, the wisdom and comfort of a good foster mother. Since "alma mater" is Latin, and since the study of Latin has waned on all educational levels in both pious and secular milieus, the author wonders whether folks who use that term really know…

  16. Mulheres de corpo e alma: aspectos biopsicossociais da meia-idade feminina Women in body and soul: biopsychosocial factors in menopause

    Directory of Open Access Journals (Sweden)

    Maria Elizabeth Mori

    2004-01-01

    Full Text Available Este trabalho investigou na literatura científica os aspectos biológicos, psicológicos e socioculturais que se estão em jogo na etapa da meia-idade feminina a fim de melhor compreender a vivência dessa mulher. O evento da menopausa - caracterizada pela cessação da ovulação e por manifestações físicas e psíquicas - marca este momento vital e impõe questões que, se não forem bem trabalhadas, podem, no limite, ocasionar sintomas depressivos. As mudanças hormonais condicionam o processo de envelhecimento que aponta para a finitude. Um certo estranhamento em relação a si mesma faz com que muitas mulheres tenham dificuldades em lidar com as perdas inerentes a esta fase de vida.This study investigated biological, psychological and sociocultural aspects that interact in middle-aged women in order to better understand their feelings and experiences. The advent of the menopause - characterized by the end of the menstruation and by psychic and physical manifestations - imposes fundamental questions that, on the limit, may elicit depressive symptoms. Hormonal changes are implicated in the aging process, that point to the finitude. A feeling of not being themselves makes many women experience difficulties with losses inherent to this life period.

  17. Consistência hidrológica de modelos digitais de elevação (MDE para definição da rede de drenagem na sub-bacia do horto florestal Terra Dura, Eldorado do Sul, RS

    Directory of Open Access Journals (Sweden)

    Anna Hoffmann Oliveira

    2012-08-01

    Full Text Available O desenvolvimento da erosão hídrica ocorre em resposta ao modo como a água se move através e sobre uma determinada paisagem. O modelo digital de elevação (MDE deve, portanto, ser o mais preciso possível, uma vez que constitui a base para a análise do relevo. Este trabalho teve como objetivo definir um modelo digital de elevação hidrologicamente consistente (MDEHC e o método de direção de fluxo mais adequado para a definição da rede de drenagem na sub-bacia do horto florestal Terra Dura, município de Eldorado do Sul, RS. Foram testados os modelos gerados com os interpoladores Topogrid e redes triangulares irregulares (Triangulated Irregular Network -TIN linear (TIN L e TIN natural neighbor (TIN NN. A qualidade em relação às análises hidrológicas foi avaliada por meio da comparação das curvas de nível geradas pelos modelos testados com as curvas originais da sub-bacia (escala 1:10.000; da avaliação da quantidade de áreas planas; e da comparação da drenagem gerada pelos modelos a partir dos métodos de direção de fluxo Deterministic (D8 e Deterministic infinity (D∞ ou D infinito com a drenagem original. Entre os modelos avaliados, o Topogrid apresentou maior consistência hidrológica, verificada na melhor continuidade das curvas de nível (menos arestas e maior detalhamento da área de drenagem e divisores, acarretando menor quantidade de áreas planas e caminhos de fluxo mais detalhados, independentemente do método de direção de fluxo utilizado. Em relação à rede de drenagem, o método distribuído D∞ obteve melhor desempenho na descrição dos caminhos de fluxo, comparado ao método de direção única D8. O MDEHC Topogrid associado ao método D∞ proporcionou a identificação mais precisa dos caminhos preferenciais do fluxo que formam a rede de drenagem.

  18. Evolução do uso da terra entre 1996 e 1999 no município de Botucatu-SP Evolution of the land use between 1996 and 1999 at Botucatu Municipality - SP, Brazil

    Directory of Open Access Journals (Sweden)

    Sérgio Campos

    2004-04-01

    Full Text Available Este trabalho teve o objetivo de avaliar a evolução do uso da terra no município de Botucatu - SP, no período de três anos, considerando-se seis tipos de cobertura vegetal (cana-de-açúcar, reflorestamento, floresta nativa, pastagem, cítrus e outros, tendo como base as imagens de satélite Landsat 5, bandas 3; 4 e 5, órbita 220, ponto 76, quadrante A, passagem de 8 de junho de 1999. O Sistema de Informações Geográficas - IDRISI for Windows 3.2, foi utilizado para as análises. Os resultados mostraram que esse programa foi eficiente para auxiliar na identificação e mapeamento das áreas com uso da terra, facilitando o processamento dos dados. As imagens de satélite TM/LANDSAT 5 forneceram um excelente banco de dados para a classificação supervisionada. O município não vem sendo preservado ambientalmente, pois apresenta-se coberto com menos de 20% de florestas nativas, mínimo exigido por lei. As áreas de pastagem, principal componente da paisagem do município, confirmam a vocação da região para a pecuária.This study aimed to evaluate the evolution of land use at Botucatu Municipality, during three years, considering six vegetative covers (sugar cane, reforestation, native forest, pasture, citrus orchard and others. As data source, a Landsat TM image, bands 3; 4 and 5, orbit 220, point 76, quadrant A, from June 8, 1999 was used. The Geographic Information System (GIS used to analyze the images was IDRISI for Windows 3.2, and the software was very efficient for identificating and mapping the vegetative cover. The Landsat 5 image was an excellent database for digital classification. The Municipality is not being preserved environmentally, because less than 20% of its area is covered with native forests, the minimum demanded by law. The pasture for cattle-raising is the predominant land use in the studied area.

  19. Fracionamento químico da matéria orgânica e características de ácidos húmicos de solos com horizonte a antrópico da amazônia (Terra Preta) Chemical fractionation of organic matter and humic acid characteristic in anthropogenic dark earth soils of brazilian amazonic region

    OpenAIRE

    Tony Jarbas Ferreira Cunha; Beata Emoke Madari; Vinicius de Melo Benites; Luciano Pasqualoto Canellas; Etelvino Henrique Novotny; Rondinele de Oliveira Moutta; Patrick Marques Trompowsky; Gabriel de Araújo Santos

    2007-01-01

    Os solos da Amazônia que possuem horizonte A antrópico (Au) apresentam elevada fertilidade natural geralmente atribuída ao teor elevado de matéria orgânica e à sua elevada reatividade. Neste estudo foram quantificadas as substâncias húmicas e caracterizados os ácidos húmicos (AH) extraídos da camada 0-20 cm de solos com horizonte Au do estado do Amazonas (Terra Preta de Índio) sob floresta e cultivo agrícola. Também foram investigadas amostras de solos adjacentes sem o horizonte antrópico. A ...

  20. Análise da dinâmica espacial da ocupação das terras e seus conflitos de uso no perímetro urbano de Santa Maria - RS (1975 - 2002 Spatial dynamic analysis of the land occupation and their conflicts of use in the urban perimiter of Santa Maria - RS (1975 - 2002

    Directory of Open Access Journals (Sweden)

    Fabrício de Araújo Pedron

    2006-12-01

    Full Text Available As cidades brasileiras, em escala variável, têm apresentado problemas resultantes do uso indevido do espaço urbano, principalmente, em relação aos recursos naturais. Neste caso, o estudo da dinâmica de uso das terras é importante na compreensão dos processos ocorridos no ambiente urbano. O objetivo deste trabalho foi analisar a dinâmica espacial e temporal de ocupação das terras em áreas urbanas de Santa Maria - RS, determinando seus conflitos de uso através do Sistema de Avaliação do Potencial de Uso Urbano das Terras (SAPUT, considerando informações do período de 1975 a 2002. O uso urbano das terras cresceu de 9%, em 1975, para 33%, em 2002. Os conflitos de uso das terras aumentaram de 19%, em 1975, para 37%, em 1995, reduzindo para 33% em 2002. Os principais problemas de uso indevido das terras se relacionam à fragilidade do material geológico e do recurso solo para uso em construções e agricultura urbana.The Brazilian cities have been facing problems due to the improper use of the urban space, mainly, related to the natural resources. In this case, the study of the dynamics of land use is important in the understanding of the processes occured in the urban environment. This research was aimed at analysing the space and temporal dynamics of land occupation in urban areas of Santa Maria - RS, Brazil, determining the conflicts of the land use through the Urban Land Use Potencial System (SAPUT, considering information from 1975 to 2002. The urban land use raised from 9% in 1975 to 33% in 2002. The conflicts of land use have increased from 19% in 1975, to 37% in 1995, reducing to 33% in 2002. The main problems of the improper land use are linked to the fragility of the geological material and soil resource when used for constructions and urban agriculture.

  1. NASA 3D Models: Terra

    Data.gov (United States)

    National Aeronautics and Space Administration — NASA launched the Earth Observing System's flagship satellite Terra, named for Earth, on December 18, 1999. Terra has been collecting data about Earth's changing...

  2. Progresso da brusone nas folhas e panículas de genótipos de arroz de terras altas Progress of leaf and panicle blast in upland rice genotypes

    Directory of Open Access Journals (Sweden)

    Vanda Maria Angeli Malavolta

    2008-06-01

    Full Text Available Foram avaliados dezesseis genótipos de arroz quanto ao seu nível de resistência parcial à brusone (Pyricularia grisea. A reação dos genótipos à doença foi avaliada durante dois anos, em condições de cultivo de terras altas, no município de Capão Bonito, SP. A severidade da doença nas folhas e panículas foi determinada periodicamente, e os dados foram utilizados para traçar a curva de progresso da doença e cálculo da área sob a curva de progresso da doença para cada genótipo (ASCPD. Os resultados evidenciaram que, considerando os dois anos de avaliação, menores valores de ASCPD foram apresentados nas folhas pelas linhagens IAC 1711, IAC 1774 e IAC 1781 e pelas cultivares BRS Bonança e BRS Liderança; nas panículas, pelas linhagens IAC 1738, IAC 1774 e IAC 1781 e pelas cultivares BRS Bonança, BRS Liderança e Carisma.Partial resistance of sixteen rice genotypes to blast (Pyricularia grisea was evaluated during two years under upland conditions (Capão Bonito, SP. Blast severity on leaves and panicles was periodically determined and the data were used to obtain the disease progress curve for each genotype and to estimate the area under disease progress curve (AUDPC. Smaller AUDPC values were presented, considering leaf blast, by IAC 1711, IAC 1774 and IAC 1781 lines and BRS Bonança and BRS Liderança cultivars; considering panicle blast, by IAC 1738, IAC 1774 and IAC 1781 lines and BRS Bonança, BRS Liderança and Carisma cultivars.

  3. Modelos de dinâmica da Terra aplicados à geologia de Portugal:relevância da experimentação análoga no ensino e na divulgação da geologia

    OpenAIRE

    Bolacha, Edite Paula Silva, 1965-

    2014-01-01

    A Modelação Análoga é uma metodologia da investigação geológica que registou importantes aperfeiçoamentos nas últimas décadas. Simula as múltiplas fases, especialmente, dos processos endógenos decorridos em largas unidades de espaço e tempo, testando teorias e modelos, e permitindo fazer previsões sobre o comportamento de sistemas geológicos. Contudo, apesar do seu valor didático e explicativo, não existiam dados concretos provenientes da sua aplicação em contextos de aprendizagem (formal e n...

  4. Integrando desenhos e imagens de satélite no estudo de mudanças no uso e cobertura da terra Integrating sketch maps and satellite pictures in the study of changes in land coverage

    Directory of Open Access Journals (Sweden)

    Álvaro de Oliveira D'Antona

    2008-06-01

    Full Text Available Analisamos o procedimento de coleta e processamento de informações sobre uso e cobertura da terra, obtidas por desenhos feitos com moradores de lotes rurais, em um segmento da Rodovia Transamazônica, no Pará. Consideramos as peculiaridades dos dados de campo buscando integrá-los aos dados obtidos por satélite. Concluímos que o instrumento deve ser usado sistematicamente no aprimoramento de abordagens interdisciplinares para o estudo de mudanças ambientais.We analyzed the procedure of collecting and processing information in regard to land use and land coverage obtained from sketch maps created together with rural property owners in a settlement area along the Transamazonica, the Transamazon Highway, in Pará, Brazil. We assessed the special features of field data and integrated them with data from satellites. We concluded that these sketch maps can be used systematically to improve interdisciplinary approaches in the study of environmental changes.

  5. The ALMA Observation Support Tool

    CERN Document Server

    Heywood, I; Williams, C J

    2011-01-01

    The ALMA Observation Support Tool (OST) is an ALMA simulator which is interacted with solely via a standard web browser. It is aimed at users who may or may not be experts in interferometry, or those that do not wish to familarise themselves with the simulation components of a data reduction package. It has been designed to offer full imaging simulation capability for an arbitrary ALMA observation while maintaining the accessibility of other online tools such as the ALMA Sensitivity Calculator. Simulation jobs are defined by selecting and entering options on a standard web form. The user can specify the standard parameters that would need to be considered for an ALMA observation (e.g. pointing direction, frequency set up, duration), and there is also the option to upload arbitrary sky models in FITS format. Once submitted, jobs are sequentially processed by a remote server running a CASA-based back-end system. The user is notified by email when the job is complete, and directed to a standard web page which co...

  6. Tradição em continuidade : levantamento das Quintas da Terra Fria do Nordeste Transmontano e contributos para a sustentabilidade

    OpenAIRE

    Gonçalves, Joana Maria dos Santos

    2014-01-01

    Dissertação de mestrado integrado em Arquitectura (área de especialização em Cultura Arquitectónica) O património vernáculo é reconhecido pela sua adequação ao contexto geográfico e cultural e, portanto, garante da identidades locais (ICOMOS, 1999). O abandono progressivo a que muitos exemplares foram votados, a nível global, contribuiu para uma perda acelerada da memória, essencial ao reconhecimento do lugar e da cultura local. Com a consciência de que atualmente a arquitetura...

  7. Da Torre de Babel às terras prometidas : estratégias sociológicas para o estudo do pluralismo religioso na sociedade portuguesa

    OpenAIRE

    Vilaça, Helena

    2003-01-01

    O pluralismo constitui uma noção política e ideológica fundamental, que faz parte dos discursos da esfera pública e, em particular, da linguagem do "politicamente correcto" nas sociedades democráticas. apesar de poder ser abordado por via de múltiplos registos é no plano da abordagem política que o pluralismo se encontra mais desenvolvido e sistematizado, o que substancialmente se explica pelo facto de esta noção - que é também cultural, religiosa, étnica,moral - se encontrar ancorada nos pri...

  8. Visual analysis applied in the land use espacialization Análise visual aplicada na espacialização do uso da terra

    Directory of Open Access Journals (Sweden)

    Fernanda Leite Ribeiro

    2009-03-01

    the type of pasture plant were the most signifi  cant occupying 69.70% of the area; c Through visual analysis of data from Landsat it was possible to verify that there is environmental preservation only in areas of forest gallery occurrences.

    Este trabalho teve como objetivo analisar o uso atual da terra do Alto Rio Pardo, Botucatu, SP, através do emprego de dados coletados pelo sensor : ematic Mapper do Landsat 5, nas bandas 3, 4 e 5 da passagem de 08 de junho de 1997, correspondentes à órbita 220, ponto 76, quadrante A. Utilizou-se nesta pesquisa dados do Landsat em composições coloridas, escala 1:50.000 e no formato digital. Sobre os dados em papel fotográfi co, fez-se uma interpretação visual e uma checagem de campo. Foi realizada a confi rmação destes usos através da imagem de satélite em CD-ROM, analisando cada um deles nas diversas bandas. De acordo com os resultados obtidos na pesquisa, chegou-se às seguintes conclusões: a os dados coletados pelo : ematic Mapper do Landsat possuem informações valiosas dos diferentes alvos de ocupação do solo sendo, portanto, muito úteis em estudos de mapeamento do uso atual da terra; b os resultados da análise visual, sobre os dados do Landsat, mostraram que as coberturas vegetais do tipo pastagens foram as mais signifi cativas, pois ocupam 69,70 % da área; c pela análise visual dos dados do Landsat foi possível constatar que há preservação ambiental somente em áreas de ocorrências de matas ciliares.

  9. ALMA Cycle 0 Publication Statistics

    CERN Document Server

    Stoehr, Felix; Meakins, Silvia; Bishop, Marsha; Uchida, Ayako; Testi, Leonardo; Iono, Daisuke; Tatematsu, Kenichi; Wootten, Al

    2016-01-01

    The scientific impact of a facility is the most important measure of its success. Monitoring and analysing the scientific return can help to modify and optimise operations and adapt to the changing needs of scientific research. The methodology that we have developed to monitor the scientific productivity of the ALMA Observatory, as well as the first results, are described. We focus on the outcome of the first cycle (Cycle 0) of ALMA Early Science operations. Despite the fact that only two years have passed since the completion of Cycle 0 and operations have already changed substantially, this analysisconfirms the effectiveness of the underlying concepts. We find that ALMA is fulfilling its promise as a transformational facility for the observation of the Universe in the submillimetre.

  10. LA LUCHA POR LA POSESIÓN DE LA TIERRA UNA LECTURA DE LA VIÑA DE NABOT (1R 21 A LUTA PELA POSSE DA TERRA. UNA LEITURA DA VINHA DE NABOT (1R 21 THE STRUGGLE FOR THE POSSESSION OF THE LAND. A READING OF THE NABOTH'S VINEYARD (1 KGS 21

    Directory of Open Access Journals (Sweden)

    TARCISIO GAITÁN,

    2009-07-01

    Full Text Available La posesión de la tierra es un tema central en la Biblia. Del mismo modo, los conflictos por la posesión-desposesión de la tierra son la médula de la problemática social en Colombia y América Latina. Este artículo brinda un estudio del relato de la viña de Nabot en su estado actual, para mostrar cómo el texto revela las causas de la confiscación de tierras, delata los responsables, devela los mecanismos que emplean y denuncia la situación como totalmente contraria a la voluntad del Señor. Así, esta rica narración aviva nuestro espíritu en el trabajo por superar las diferencias sociales.A posse da terra é um tema central na Biblia. Da mesma maneira, os conflitos pela posse e detenção da terra são o centro do problema social na Colômbia e na América Latina. Neste artigo faz-se um estudo do relato da vinha de Nabot no tempo atual, para mostrar como o texto revela as causas da confiscação de terras, que denúncia aos responsáveis e revela e a situação dos mecanismos que utilizam os homens em oposição à vontade de Deus. Assim, esta narração bíblica acorda nosso espírito no trabalho para superar as diferenças sociais.Possession of the land is a major theme of the Bible. In a similar way, conflicts regarding the possession/dispossession of land are at the core of social problems in Colombia and Latin America. This paper offers a study of the story about Naboth's vineyard in its present form, in order to show how the text reveals the causes for the confiscation of land , denounces the responsible ones, shows the technicques employed for this, and denounces the situation as completely opposed to the will of the Lord. Thus, this rich story arouses our spirit in the work for overcoming social differences.

  11. A AMAZÔNIA FRENTE ÀS MUDANÇAS NO USO DA TERRA E DO CLIMA GLOBAL E A IMPORTÂNCIA DAS ÁREAS PROTEGIDAS NA MITIGAÇÃO DOS IMPACTOS: UM ESTUDO DE MODELAGEM NUMÉRICA DA ATMOSFERA (The Amazon in the face of land cover and global climate changes...)

    OpenAIRE

    ROCHA, Vinícius Machado; CORREIA, Francis Wagner Silva; FIALHO, Edson Soares

    2012-01-01

    O presente trabalho retrata a vulnerabilidade da floresta amazônica às variabilidades e mudanças do sistema climático, como os eventos El Niño e Oscilação Atlântica, como também às mudanças no uso da terra, sobretudo através do desflorestamento tropical, e do clima global, em função do aumento nas emissões dos gases de efeito estufa (GEE) na atmosfera. Realizou-se um estudo de sensibilidade do clima utilizando o modelo regional GEMBRAMS com o intuito de avaliar os impactos no balanço de umida...

  12. ALMA Telescope Reaches New Heights

    Science.gov (United States)

    2009-09-01

    The ALMA (Atacama Large Millimeter/submillimeter Array) astronomical observatory took another step forward and upward, as one of its state-of-the-art antennas was carried for the first time to Chile's 16,500-foot-high plateau of Chajnantor on the back of a giant, custom-built transporter. The 40-foot-diameter antenna, weighing about 100 tons, was moved to ALMA's high-altitude Array Operations Site, where the extremely dry and rarefied air is ideal for observing the Universe. The conditions at the Array Operations Site on Chajnantor, while excellent for astronomy, are also very harsh. Only about half as much oxygen is available as at sea level, making it very difficult to work there. This is why ALMA's antennas are assembled and tested at the lower 9,500-foot altitude of the ALMA Operations Support Facility (OSF). It was from this relatively hospitable base camp that the ALMA antenna began its journey to the high Chajnantor site. "The successful transport of the first ALMA Antenna to the high site marks the start of the next phase of the project. Now that we are starting to move the ALMA antennas to the high site, the real work begins and the exciting part is just beginning," said Adrian Russell, North American ALMA Project Manager. The antenna's trip began when one of the two ALMA transporters lifted the antenna onto its back, carrying its heavy load along the 17-mile road from the Operations Support Facility up to the Array Operations Site. While the transporter is capable of speeds of up to 8 miles per hour when carrying an antenna, this first journey was made more slowly to ensure that everything worked as expected, taking about seven hours. The ALMA antennas use state-of-the-art technology, and are the most advanced submillimeter-wavelength antennas ever made. They are designed to operate fully exposed in the harsh conditions of the Array Operations Site, to survive strong winds and extreme temperatures, to point precisely enough that they could pick out a golf

  13. Efeito da silvicultura pós-colheita na população de Chrysophyllum lucentifolium Cronquist (Goiabão em uma floresta de terra firme na amazônia brasileira

    Directory of Open Access Journals (Sweden)

    Marisol Taffarel

    2014-12-01

    Full Text Available Avaliou-se o crescimento de uma população de Chrysophyllum lucentifolium Cronquist (goiabão, considerando árvores com diâmetro igual ou superior a 35 cm, em 700 ha de floresta natural de terra firme explorada com técnicas de impacto reduzido, seguidas de tratamentos silviculturais, no Município de Paragominas, PA, Amazônia brasileira. Foram estabelecidos sete tratamentos, com quatro repetições de 25 ha em cada um, em que foram aplicados os tratos silviculturais, que constaram de corte de cipós e anelagem de árvores competidoras. O crescimento da espécie foi determinado por meio do incremento periódico anual em diâmetro, no período de 2005 a 2009. Além das medidas de diâmetro, foram observadas as formas das copas das árvores e a intensidade de luz recebida pelas copas. Chrysophyllum lucentifolium não respondeu significativamente aos tratamentos silviculturais, ou seja, a anelagem e o corte de cipós parecem não ter influenciado o crescimento da espécie no período de cinco anos. No entanto, as árvores com diâmetro de 40 a 49 cm, com copas de forma regular e recebendo alta intensidade de luz, cresceram mais, na maioria dos tratamentos. Portanto, é provável que o incremento ainda vá aumentar nos anos seguintes, embora em outras áreas da Amazônia o efeito da abertura do dossel tenha estimulado o crescimento das árvores apenas até o final do terceiro ano após a exploração. Outras avaliações silviculturais da espécie devem ser realizadas para constatar se houve aceleração no crescimento nos últimos anos ou se há a necessidade de aplicar novamente os tratos silviculturais.

  14. ALMA Common Software - UTFSM Group

    Science.gov (United States)

    Araya, M.; Avarias, J.; Mora, M.; Tobar, R.

    The ACS-UTFSM Group was created as a distributed systems research team on astronomical and non-astronomical applications on the year 2004. The choice of the ALMA Common Software framework (ACS) as the development platform came from the experience gained during summerjobs at ESO observatories. After three years of informal contributions to ACS development, the team presented a technology exchange initiative to the ALMA-CONICYT Fund 2006, which was granted in 2007. Through the past years, the UTFSM helped the ACS team with "nice-to-have" applications and testing. Currently the ACS-UTFSM is involved in several contributions to ACS, and the development of a flexible telescope control system (gTCS) framework which aims to encapsulate common requirements and will provide a uniform software. In preparation for this challenging objective, several small projects are currently being developed. The other interesting edge of the team work is the technology transfer initiatives. Several inter-universities collaborations are flourishing (PUC, UCN, UV) after the first ACS Workshop held at the UTFSM this year. Today three former team members are working at NRAO's ALMA Test Facility in Socorro, New Mexico. Two other students will have a summer job next year to work in ALMA related development.

  15. Linear correlation between components production and yield of rice upland in no-tillage Correlação linear entre componentes da produção e produtividade do arroz de terras altas em sistema plantio direto

    Directory of Open Access Journals (Sweden)

    Amilton Ferreira da Silva

    2012-10-01

    Full Text Available The rice is one of the main sources of the humanity’s feeding. During the agricultural year 2009/2010, in Selvíria County, Mato Grosso do Sul State, in the Brazilian Savannah, an experiment was installed with rice upland in a Dystropherric Red Latosol (Typic Acrustox under no-tillage, irrigated by central pivot, with the purpose of selecting the best components production to explain the variability the irrigated rice yield upland. The geostatistical grid was installed, to collect the data, with 120 sampling points, in an area of 3.0 ha and and homogeneous slope of 0.055 m m-1. The medium rice yield was of the 5980 kg ha-1. For the simple lineal regressions, the number of spikelets grenades for panicle presented the best direct potential correlation with the yield rice, given for: PGO = 115,5.NEG0,770. However, for the multiple lineal regressions, the equation equação PGO = 2754,30-411,55.NEG-461,07.NEC+436,59. NET it was the one that better she came to esteem the yield rice. However, spatial, it was not possible to establish correlation between the yield rice and the components production, once none of those it presented spatial dependence in their data.O arroz é uma das principais fontes de alimentação da humanidade. Durante o ano agrícola 2009/2010, no município de Selvíria (MS, no Cerrado Brasileiro, foi instalado um experimento com arroz de terras altas em um Latossolo Vermelho distroférrico sob sistema plantio direto, irrigado por pivô central, com o objetivo de selecionar os melhores componentes da produção para explicar a variabilidade da produtividade do arroz de terras altas irrigado. Foi instalada a malha geoestatística, para a coleta de dados, com 120 pontos amostrais, numa área de 3,0 ha e declive homogêneo de 0,055 m m-1. A produtividade média de grãos de arroz foi de 5980 kg ha-1. Para as regressões lineares simples, o número de espiguetas granadas por panícula apresentou a melhor correlação potencial

  16. Transformações da terra: para uma perspectiva agroecológica na história Transformation of the land: towards an agroecological perspective in history

    OpenAIRE

    Donald Worster

    2003-01-01

    O artigo discute a constituição do campo da história ambiental, que se deu nos anos 70 em meio aos debates sobre a crise ecológica e a eclosão do movimento ambientalista. Esta história não aceita a noção de que as sociedades humanas não produzem alterações ambientais significativas, e interpela as condições específicas dessa interação recorrente. O sistema agroecológico representa um dos casos mais típicos de rearranjo da atividade humana sobre os ecossistemas naturais, em uma relação complex...

  17. Nem tanto ao céu, nem tanto a terra: limites e possibilidades da lei de incentivo fiscal à cultura

    Directory of Open Access Journals (Sweden)

    Marcelo Gruman

    2010-04-01

    Full Text Available

    O artigo reflete sobre o papel das leis de incentivo fiscal como instrumento de políticas públicas para a cultura, apresentando um breve histórico de sua existência. Argumenta, a partir de gráficos comparativos, que a utilização deste mecanismo não conseguiu democratizar a contento o acesso à produção e à fruição cultural por parte da população brasileira, fato este que resultou na proposta de reformulação da chamada Lei Rouanet a partir de amplo debate entre o Ministério da Cultura e a sociedade civil.

  18. Diatomaceous earth effects on weevils with different susceptibility standard to phosphine Efeito da terra de diatomácea sobre carunchos com diferentes padrões de susceptibilidade à fosfina

    Directory of Open Access Journals (Sweden)

    Patrícia M. da Conceição

    2012-01-01

    Full Text Available The aim of this study was to evaluate the insecticide activity of diatomaceous earth (DE, at different temperatures, on two populations of Tribolium castaneum and Rhyzopertha dominica previously diagnosed as resistant and susceptible to phosphine. The efficiency of DE in the control of the insects was evaluated at temperatures of 20, 25, 30, 35 and 40 ± 2 ºC. The experiments were accomplished in Petri dishes containing 35 g of whole-wheat grain treated with DE in the dose of 1.0 kg t-1. The control was constituted by untreated wheat grain. Each Petri dish was infested with 30 adult insects. Insect mortality was registered seven days after the beginning of the bioassays. The experiment was conducted in a completely randomized design with three replications. The populations of T. castaneum and R. dominica, respectively, resistant and susceptible to phosphine have similar susceptibility patterns. The mortality of two populations of T. castaneum increased with increasing temperature. For R. dominica, the mortality did not change with the temperature.O objetivo deste trabalho foi avaliar a atividade inseticida da terra de diatomácea (TD, em diferentes temperaturas, em relação a duas populações de Tribolium castaneum e Rhyzopertha dominica previamente diagnosticadas como resistentes e susceptíveis à fosfina. A eficiência da TD foi avaliada nas temperaturas de 20, 25, 30, 35 e 40 ± 2 ºC e os experimentos foram realizados em placas de Petri contendo 35 g de grãos inteiros de trigo, tratados com TD na dose de 1,0 kg t-1. O controle foi constituído de grãos de trigo não tratados; ressalta-se que cada placa de Petri foi infestada com 30 insetos adultos, cuja mortalidade foi contabilizada sete dias após o início dos bioensaios. O delineamento experimental utilizado foi o inteiramente casualizado, com três repetições. As populações de T. castaneum e R. dominica, respectivamente, resistentes e susceptíveis à fosfina apresentaram padr

  19. Transformações da terra: para uma perspectiva agroecológica na história Transformation of the land: towards an agroecological perspective in history

    Directory of Open Access Journals (Sweden)

    Donald Worster

    2003-01-01

    Full Text Available O artigo discute a constituição do campo da história ambiental, que se deu nos anos 70 em meio aos debates sobre a crise ecológica e a eclosão do movimento ambientalista. Esta história não aceita a noção de que as sociedades humanas não produzem alterações ambientais significativas, e interpela as condições específicas dessa interação recorrente. O sistema agroecológico representa um dos casos mais típicos de rearranjo da atividade humana sobre os ecossistemas naturais, em uma relação complexa de interação entre plantas nativas, vegetação forasteira, fertilidade dos solos e diversas práticas agrícolas. O itinerário dessas mudanças é essencial para se compreender a história do ponto de vista ambientalThis article discusses the formation of the field of environmental history which originated in the 1970s in the middle of the debates on the ecologic crisis and the emergence of the environmental movement. This history rejects the notion that human societies do not cause significant environmental alterations and analyzes the specific conditions of that recurring interaction. The agroecologic system is one of the most typical cases of the intervention of human activity on natural ecosystems in a complex interaction between indigenous plants, exotic vegetation, fertility of the soil and diverse agricultural practices. The roadmap of these changes is essential to understand history from the view point of the environment.

  20. Uso da terra e propriedades físicas e químicas de Argissolo Amarelo distrófico na Amazônia Ocidental

    Directory of Open Access Journals (Sweden)

    Araújo E. A.

    2004-01-01

    Full Text Available O objetivo deste estudo foi avaliar as alterações físicas e químicas em Argissolo Amarelo distrófico textura média/argilosa relevo plano, sob diferentes tipos de uso no assentamento Favo de Mel, município de Sena Madureira, Acre. A coleta de material de solo foi realizada no início da estação chuvosa (outubro/1999. Os tipos de usos avaliados foram: mata natural (testemunha, mata recém - desbravada e submetida à queima intensa, pupunha (Bactris gassipae com dois anos de cultivo e pastagem de braquiária (Brachiaria brizantha com quatro anos de cultivo. Em cada área, abriu-se uma trincheira, de onde se coletaram 12 amostras, em camadas delgadas, no intervalo de 0,0 a 0,60 m a partir da superfície do solo. Também coletaram-se amostras dos horizontes pedogenéticos. No material coletado, avaliaram-se: características físicas (granulometria, argila dispersa em água, densidade do solo, resistência do solo à penetração e parâmetros sedimentológicos e químicas (complexo sortivo, fósforo disponível, pH em água e em KCl, carbono orgânico, fósforo remanescente, substâncias húmicas e ferro pelo ataque sulfúrico. Verificou-se que, sob pastagem de braquiária, o solo apresentou os maiores valores de densidade no horizonte A, o que revela tendência à compactação. Os nutrientes avaliados e o carbono orgânico apresentaram baixos teores e estavam concentrados nos primeiros centímetros do solo. O potássio decresceu drasticamente na pastagem, graças, possivelmente, às perdas por erosão, queima e pastejo. A fração humina, dentre os compostos orgânicos, predominou nos quatro sistemas avaliados.

  1. Soil organic matter and fertility of anthropogenic dark earths (Terra Preta de Índio) in the Brazilian Amazon basin Matéria orgânica e fertilidade de solos antropogênicos (Terra Preta De Índio) da Bacia Amazônica brasileira

    OpenAIRE

    Tony Jarbas Ferreira Cunha; Beata Emoke Madari; Luciano Pasqualoto Canellas; Lucedino Paixão Ribeiro; Vinicius de Melo Benites; Gabriel de Araújo Santos

    2009-01-01

    Fertility properties, total C (Ctot), and chemical soil organic matter fractions (fulvic acid fraction - FA, humic acid fraction - HA, humin fraction - H) of anthropogenic dark earths (Terra Preta de Índio) of the Amazon basin were compared with those of Ferralsols with no anthropogenic A horizon. Terra Preta soils had a higher fertility (pH: 5.1-5.4; Sum of bases, SB: 8.93-10.33 cmol c kg-1 , CEC: 17.2-17.5 cmol c kg-1 , V: 51-59 %, P: 116-291 mg kg-1) and Ctot (44.6-44.7 g kg-1) than adjace...

  2. Efeito da fertilidade de terra preta de índio da Amazônia Central no estado nutricional e na produtividade do mamão hawaí (Carica papaya L. Effect of amazonian dark earth fertility on nutritional status and fruit production of papaya(Carica papaya L.in Central Amazonia

    Directory of Open Access Journals (Sweden)

    Newton Paulo de Souza Falcão

    2006-12-01

    Full Text Available Com o objetivo de avaliar o efeito da fertilidade de solos antropogênicos no estado nutricional e na produtividade do mamão Havaí (Carica papaya L., conduziu-se o presente estudo em um plantio, localizado na Costa do Açutuba, Iranduba, AM, em Latossolo Amarelo antrópico em plantas com oito meses de idade e no início da produção de frutos, no período de agosto a outubro de 2003. O delineamento experimental foi inteiramente casualizado, com quatro tratamentos e nove repetições, constituídos de uma amostra composta por três plantas e trinta e seis unidades experimentais, sendo os tratamentos Tpn = plantio em terra preta não adubada; Tpa = plantio em terra preta adubada; Tm1 = plantio em terra mulata não adubada; Tm2 = plantio em terra mulata com um ano de pousio. O tratamento que apresentou maior produção foi o Tpa, com média de 61,10 frutos/planta, e o que apresentou menor produção foi o Tpn, com média de 18,18 frutos/planta. A acidez potencial em todos os tratamentos apresentou-se em níveis médios, mesmo com o manejo da fertilidade praticado nos últimos anos. Observou-se um desbalanço nutricional provocado pelos altos teores de P, Ca, Mg e baixo teor de K; todos os tratamentos apresentaram teores de Zn e Mn considerados tóxicos, enquanto que o Fe apresentou níveis adequados.The effect of Amazonian dark earth fertility on the nutritional status and fruit production of a Carica papaya plantation was evaluated in Açutuba Coast, Iranduba Municipality, Amazonas, Brazil, between August and Octuber 2003, when the plantation was eight months old and just starting production. A completely randomized experimental design, with four treatments and nine replications, was used; each replication contained three plants. The treatment were: Tpn - Amazonian Dark Earth with no supplemental fertilizer; Tpa - Amazonian Dark Earth with supplemental fertilizer (3 kg aged chicken manure and 300 g dolomite per plant; Tm1 - Mulata Earth with no

  3. Terra preta de índio (TPI) Anthropogenic Dark Earth.

    OpenAIRE

    Devide, Antonio Carlos Pries

    2012-01-01

    As pesquisas arqueológicas sobre a Terra Preta de Índio no Brasil vem despertando a atenção mundial devido às propriedades que o solo adquiriu através da adição de grande quantidade de carbono e restos orgânicos e cerâmicos. Essa Revisão de Literatura possibilita uma introdução sobre Terra Preta de Índio e as pesquisas sobre o Biochar (Biocarvão).

  4. ALMA Debuts High-Resolution Results

    Science.gov (United States)

    Kohler, Susanna

    2015-07-01

    The exciting results of the highest-resolution test campaign yet attempted by the Atacama Large Millimeter/submillimeter Array (ALMA) are detailed in a recent set of four papers. Animation (click to watch) of the asteroid Juno as seen in mm wavelengths by ALMA's Long Baseline Campaign. Image credit: ALMA (NRAO/ESO/NAOJ) ALMA's array of antennas can be configured so that the baseline of the simulated telescope is as small as 150 m or as large as 15 km across. In its smaller configurations, ALMA studies the large-scale structure of cold objects in the Universe — and this is how the array has been used since it began its first operations in 2011. But now ALMA has begun to test its long-baseline configuration, in which it is able to make its highest-resolution observations and study the small-scale structure of objects in detail. The Targets ALMA's Long Baseline Campaign, run in late 2014, observed five science targets using 22-36 antennas arranged with a baseline of up to the full 15 km. The targets were selected to push the limits of ALMA's capabilities: each target has a small angular size (less than two arcseconds) with fine-scale structure that is largely unresolved in previous observations. Two of the targets, the variable star Mira and the active galaxy 3C138, were primarily used for calibration and comparisons of ALMA data to those of other telescopes. The remaining three targets not only demonstrated ALMA's capabilities, but also resulted in new science discoveries. ALMA's highest resolution observation yet, of the gravitationally lensed galaxy SDP.81. The maximum resolution of this image is 23 milliarcseconds. Image credit: ALMA (NRAO/ESO/NAOJ); B. Saxton NRAO/AUI/NSF Juno is one of the largest asteroids in our solar system's main asteroid belt. ALMA's observations of Juno were made when the asteroid was approximately 295 million km from Earth, and the ten images ALMA took have been stitched together into a brief animation that show the asteroid tumbling

  5. Análise da estrutura de comunidades arbóreas de uma floresta amazônica de Terra Firme aplicada ao manejo florestal Analysis of the structure of tree communities of a amazonian forest applied to management

    Directory of Open Access Journals (Sweden)

    João Carlos Zenaide Oliveira Alves

    2008-12-01

    Full Text Available Este trabalho teve o objetivo de identificar e descrever a estrutura das comunidades arbóreas de uma floresta de terra firme sob regime de manejo na Amazônia Oriental, localizada no município de Almeirim, Pará, Brasil. O levantamento florístico foi realizado em 1.400,30 ha de uma Unidade de Produção Anual (UPA, do Plano de Manejo Florestal da empresa ORSA Florestal. Todos os indivíduos com DAP > 30 cm foram inventariados, registrando-se 77.834 árvores distribuídas em 57 famílias, 229 gêneros e 556 espécies. Oito comunidades foram identificadas por meio de uma analise de agrupamento, apresentando alta diversidade e equibilidade florística (H" médio = 4,25 e J" médio = 0,75. As comunidades apresentaram 138 espécies comuns, 119 espécies de ocorrência exclusiva e 377 espécies raras, representadas por apenas um indivíduo. As espécies que mais se destacaram foram: Dinizia excelsa, Vouacapoua americana, Goupia glabra, Mouriri brachyanthera, Parinari excelsa, Manilkara bidentada, Tachigalia mymecophyla e Licania micrantha. Algumas espécies de valor comercial apresentaram variações importantes na densidade, sugerindo risco de extinção em comunidades onde as espécies apresentam densidade muito baixa. Sugerimos que os planos de manejo considerem as várias comunidades ecológicas encontradas nas UPAs evitando assim variações significativas, causadas pela exploração e seus impactos, na composição florística e estrutura das comunidades existentes.To demonstrate the importance of the ecological concept for forest management, the object of this work was to identify and describe the structure of tree communities of a tropical forest under management in the Eastern Amazonia, located in Almeirim municipality, in the state of Pará, Brazil. The floristic survey was undertaken in a terra-firme tropical forest of 1,400.30 hectares. All individuals with DBH > 30 cm were inventoried, registering 77,834 trees distributed in 57

  6. ALMA Band 5 Cartridge Performance

    Science.gov (United States)

    Billade, Bhushan; Lapkin, I.; Nystrom, O.; Sundin, E.; Fredrixon, M.; Finger, R.; Rashid, H.; Desmaris, V.; Meledin, D.; Pavolotsky, A.; Belitsky, Victor

    2010-03-01

    Work presented here concerns the design and performance of the ALMA Band 5 cold cartridge, one of the 10 frequency channels of ALMA project, a radio interferometer under construction at Atacama Desert in Chile. The Band 5 cartridge is a dual polarization receiver with the polarization separation performed by orthomode transducer (OMT). For each polarization, Band 5 receiver employs sideband rejection (2SB) scheme based on quadrature layout, with SIS mixers covering 163-211 GHz with 4-8 GHz IF. The LO injection circuitry is integrated with mixer chip and is implemented on the same substrate, resulting in a compact 2SB assembly. Amongst the other ALMA bands, the ALMA Band 5 being the lowest frequency band that uses all cold optics, has the largest mirror. Consequently, ALMA Band 5 mirror along with its support structure leaves very little room for placing OMT, mixers and IF subsystems. The constraints put by the size of cold optics and limited cartridge space, required of us to revise the original 2SB design and adopt a design where all the components like OMT, mixer, IF hybrid, isolators and IF amplifier are directly connected to each other without using any co-ax cables in-between. The IF subsystem uses the space between 4 K and 15 K stage of the cartridge and is thermally connected to 4 K stage. Avoiding co-ax cabling required use of custom designed IF hybrid, furthermore, due to limited cooling capacity at 4 K stage, resistive bias circuitry for the mixers is moved to 15 K stage and the IF hybrid along with an integrated bias-T is implemented using superconducting micro-strip lines. The E-probes for both LO and RF waveguide-to-microstrip transitions are placed perpendicular to the wave direction (back-piece configuration). The RF choke at the end of the probes provides a virtual ground for the RF/LO signal, and the choke is DC grounded to the chassis. The on-chip LO injection is done using a microstrip line directional coupler with slot-line branches in the

  7. Perfil nutricional e fatores associados à ocorrência de desnutrição entre crianças indígenas Kaingáng da Terra Indígena de Mangueirinha, Paraná, Brasil Nutritional profile and factors associated with malnutrition in Kaingáng children on the Mangueirinha Indigenous Reserve, Paraná State, Brazil

    OpenAIRE

    Adriana Masiero Kühl; Arlete Catarina Tittoni Corso; Maurício Soares Leite; João Luiz Bastos

    2009-01-01

    Este estudo objetivou avaliar o estado nutricional de crianças indígenas e verificar os fatores associados à ocorrência de agravos nutricionais. Foram avaliadas 141 crianças Kaingáng de 0 a 60 meses de idade da Terra Indígena de Mangueirinha, Paraná, Brasil, por meio das medidas de peso e altura ou comprimento. Realizaram-se entrevistas com a aplicação de um questionário sobre condições materno-infantis e sócioeconômicas. Segundo os parâmetros da Organização Mundial da Saúde (2006), 24,8% das...

  8. Mineralogia e geoquímica de perfis de solo com Terra Preta Arqueológica de Bom Jesus do Tocantins, sudeste da Amazônia Mineralogy and geochemistry of soil profiles with Archeological Black Earth from Bom Jesus do Tocantins, southeastern Amazon

    OpenAIRE

    Any Kelly Terra da Silva; José Tasso Felix Guimarães; Vanda Porpino Lemos; Marcondes Lima da Costa; Dirse Clara Kern

    2012-01-01

    A comparação de dados morfológicos, mineralógicos e químicos de solo com horizontes antrópicos - Terra Preta Arqueológica (TPA) com Argissolos adjacentes permitiu identificar os principais processos responsáveis pela formação da TPA em um sítio arqueológico no Município de Bom Jesus do Tocantins, sudeste do Estado do Pará. A similaridade entre os dados dos horizontes subsuperficiais do solo com TPA e solos adjacentes indica que o horizonte antrópico do solo TPA foi provavelmente desenvolvido ...

  9. Avaliação da degradação das terras nas regiões oeste e norte da cidade de Campina Grande, PB: um estudo de caso Evaluation of land degradation in north and western regions of Campina Grande, PB: a case study

    Directory of Open Access Journals (Sweden)

    João M. de Moraes Neto

    2002-04-01

    Full Text Available Objetivou-se, com o presente trabalho, avaliar a degradação das terras nas regiões oeste e norte da cidade de Campina Grande, PB, cuja metodologia incluiu: processamento digital de imagem, interpretação visual e correlação com os dados de campo. Na análise digital utilizou-se o método de classificação supervisionada por Maximoverossimilhança (Maxver, cujos resultados se mostraram satisfatórios permitindo, assim, o mapeamento das principais áreas degradadas da região de estudo.The objective of the present work was to evaluate and characterize the land degradation in western and northern regions of Campina Grande, PB. Data were obtained through digital image processing, followed by visual interpretation of the digitally processed image and final field checking. The Gaussian Maximum Likelihood Classifier was used in digital analysis. The results of the classification showed to be satisfactory, allowing to map the main degraded areas of the studied region.

  10. Efeitos da terra diatomácea sobre Diabrotica speciosa (Germar, 1824 (Coleoptera: Chrysomelidae em batata inglesa Effects of diatomaceous earth on Diabrotica speciosa (Germar, 1824 (Coleoptera: Chrysomelidae in potato

    Directory of Open Access Journals (Sweden)

    Franscinely Aparecida Assis

    2011-06-01

    Full Text Available A espécie Diabrotica speciosa é um crisomelídeo responsável por causar danos consideráveis à batateira, o que torna indispensável seu controle com inseticidas para minimizar os prejuízos causados à cultura. Assim, objetivou-se, com este trabalho, avaliar os efeitos da terra diatomácea sobre o comportamento alimentar e a mortalidade de D. speciosa em batata inglesa em condições de laboratório. Adotou-se o DIC com três tratamentos e oito repetições, sendo: 1 - testemunha; 2 - TD polvilhada (0,5 g/vaso e 3 - TD pulverizada a 1%. As batateiras, cv. Emeraude, foram polvilhadas ou pulverizadas com TD, 30 dias após o plantio e, 24 horas após a aplicação, as plantas foram fornecidas aos insetos, sem e com chance de escolha. Houve diferença significativa entre os tratamentos, sendo a menor porcentagem de folíolos com injúrias observada em plantas que receberam a aplicação de TD pulverizada (teste sem chance de escolha e TD polvilhada ou pulverizada (teste com chance de escolha. Também houve redução do número de injúrias foliares às 24 e às 48 horas (TD polvilhada ou pulverizada e, às 72 horas, a redução foi observada somente com a aplicação da TD polvilhada. Com relação à ação inseticida da TD, foi verificado seu efeito após 48 horas, tanto via polvilhamento, quanto via pulverização. Assim, a aplicação de TD pode auxiliar no manejo de D. speciosa, contribuindo para conferir proteção às plantas de batata inglesa e aumentar a mortalidade desse inseto-praga.The species D. speciosa is a chrysomelid responsible for causing considerable damage on potato plant, making its control with insecticides essential to minimize the damage caused to this culture. The objective of this study was to evaluate the effects of diatomaceous earth (DE on feeding behavior and mortality of D. speciosa in potato under laboratory conditions. A completely randomized design was used with three treatments and eight replicates being: 1

  11. Bilateral symmetry across Aphrodite Terra

    International Nuclear Information System (INIS)

    There are three main highland areas on Venus: Beta Regio, Ishtar Terra and Aphrodite Terra. The latter is least known and the least mapped, yet existing analyses of Aphrodite Terra based on available Pioneer-Venus orbiter data suggest that it may be the site of extensive rifting. Some of the highest resolution (30 km) PV data (SAR) included most of the western half of Aphrodite Terra. Recent analysis of the SAR data together with Arecibo range-doppler topographic profiling (10 X 100 km horizontal and 10 m vertical resolution) across parts of Aphrodite, further characterized the nature of possible tectonic processes in the equatorial highlands. The existence of distinct topographic and radar morphologic linear discontinuities across the nearly east-west strike of Aphrodite Terra is indicated. Another prominent set of linear features is distinctly parallel to and orthogonal to the ground tracks of the PV spacecraft and are not included because of the possibility that they are artifacts. Study of the northwest trending cross-strike discontinuities (CSD's) and the nature of topographic and morphologic features along their strike suggest the presence of bilateral topographic and morphologic symmetry about the long axis of Aphrodite Terra

  12. Kemanda Çalma Teknikleri

    OpenAIRE

    ÇUHADAR, Yrd. Doç. C. Hakan

    2013-01-01

    Keman ortaya çıkışından bugüne kadar üzerinde en çok eser yazılan ve çalma tekniği geliştirilen çalgılardan birisidir Hemen hemen tüm doğu ve batı müziklerinde önemli bir yeri bulunmaktadır Özellikle gelişen yay ve çalma teknikleri sayesinde batı müziğinin en önemli üyesi olmuştur Batı dünyasında 1600 yıllarında geliştirilmeye başlanan keman İtalyan ustalar Amati Guarnerius ve Stradivarius sayesinde bugünkü şeklini elde etmiştir Keman çalmada önemli bir unsur olan yay ise Fransız yay ...

  13. ADMIT: The ALMA Data Mining Toolkit

    Science.gov (United States)

    Teuben, P.; Pound, M.; Mundy, L.; Rauch, K.; Friedel, D.; Looney, L.; Xu, L.; Kern, J.

    2015-09-01

    ADMIT (ALMA Data Mining ToolkiT), a toolkit for the creation of new science products from ALMA data, is being developed as an ALMA Development Project. It is written in Python and, while specifically targeted for a uniform analysis of the ALMA science products that come out of the ALMA pipeline, it is designed to be generally applicable to (radio) astronomical data. It first provides users with a detailed view of their science products created by ADMIT inside the ALMA pipeline: line identifications, line ‘cutout' cubes, moment maps, emission type analysis (e.g., feature detection). Using descriptor vectors the ALMA data archive is enriched with useful information to make archive data mining possible. Users can also opt to download the (small) ADMIT pipeline product, then fine-tune and re-run the pipeline and inspect their hopefully improved data. By running many projects in a parallel fashion, data mining between many astronomical sources and line transitions will also be possible. Future implementations of ADMIT may include EVLA and other instruments.

  14. Estado nutricional e fatores associados à estatura de crianças da Terra Indígena Guarita, Sul do Brasil Nutritional status and social determinants of child height in the Guarita Indigenous Territory, Southern Brazil

    Directory of Open Access Journals (Sweden)

    Ivone Andreatta Menegolla

    2006-02-01

    Full Text Available O estado nutricional de crianças menores de cinco anos e fatores associados à estatura foram estudados usando dados de um programa para controle da desnutrição e mortalidade na Terra Indígena Guarita, Rio Grande do Sul, Brasil, 2001/2002. Índices antropométricos foram calculados em escores-z da referência CDC/2000. Na primeira avaliação pelo programa, 34,7%, das crianças apresentavam baixa estatura, 12,9% baixo peso para idade, 4,2% baixo peso para estatura e 8,7% sobrepeso. Baixa estatura foi mais prevalente em meninos e maiores de um ano. Modelos de regressão linear múltipla sugerem que a altura foi, em média, menor quando a água para alimentação era de fonte/poço/rio (p = 0,046, não havia geladeira para conservar alimentos (p = 0,021, a mãe era menor de 16 anos ao nascimento do mais velho entre os filhos menores de cinco anos (p = 0,019 e analfabeta (p = 0,083. O destino dos dejetos evidenciou efeito apenas no modelo bruto. Não houve evidência de efeito do número de filhos menores de cinco anos. Políticas de inclusão social e provisão de recursos sociais e de saúde são potencialmente relevantes para a saúde e nutrição nessa população.The nutritional status of under-five children and the association between social conditions and child stature were examined using data from the program to control malnutrition and mortality in the Guarita Indigenous Territory, southern Brazil, 2001-2002. Anthropometric indices were calculated in z-scores of the CDC 2000 reference. At entrance into the program, 34.7% of the children presented stunting, 12.9% low weight for age, 4.2% wasting, and 8.7% overweight. Stunting was most prevalent among boys and children older than one year. Multivariate linear regression showed that, on average, children were shorter when the drinking water was collected directly in the environment (p = 0.046, there was no refrigerator for food preservation (p = 0.021, maternal age was less than 16 years

  15. Two years of ALMA bibliography - lessons learned

    CERN Document Server

    Meakins, Silvia; Bishop, Marsha J; Stoehr, Felix; Tatematsu, Ken

    2014-01-01

    Telescope bibliographies are integral parts of observing facilities. They are used to associate the published literature with archived observational data, to measure an observatory's scientific output through publication and citation statistics, and to define guidelines for future observing strategies. The ESO and NRAO librarians as well as NAOJ jointly maintain the ALMA (Atacama Large Millimeter/submillimeter Array) bibliography, a database of refereed papers that use ALMA data. In this paper, we illustrate how relevant articles are identified, which procedures are used to tag entries in the database and link them to the correct observations, and how results are communicated to ALMA stakeholders and the wider community. Efforts made to streamline the process will be explained and evaluated, and a first analysis of ALMA papers published after two years of observations will be given.

  16. Interstellar Isotopes: Prospects with ALMA

    Science.gov (United States)

    Charnley Steven B.

    2010-01-01

    Cold molecular clouds are natural environments for the enrichment of interstellar molecules in the heavy isotopes of H, C, N and O. Anomalously fractionated isotopic material is found in many primitive Solar System objects, such as meteorites and comets, that may trace interstellar matter that was incorporated into the Solar Nebula without undergoing significant processing. Models of the fractionation chemistry of H, C, N and O in dense molecular clouds, particularly in cores where substantial freeze-out of molecules on to dust has occurred, make several predictions that can be tested in the near future by molecular line observations. The range of fractionation ratios expected in different interstellar molecules will be discussed and the capabilities of ALMA for testing these models (e.g. in observing doubly-substituted isotopologues) will be outlined.

  17. Environmental quality improvement of agricultural lands through silvopasture in southeastern United States Melhoria da qualidade ambiental de terras agricultáveis por meio da silvopastagem no sudeste dos Estados Unidos

    Directory of Open Access Journals (Sweden)

    Vimala D. Nair

    2007-10-01

    Full Text Available We hypothesized that, because of the ability of trees to sequester carbon (C in the deep soil profile and remove excess nutrients from soils, the silvopastoral agroforestry system could enhance the environmental quality of the agricultural lands. To test this hypothesis, two sets of experiments were conducted in two soil orders in Florida, Spodosols and Ultisols, with two major objectives: i determining the soil C accumulation and tracing the plant sources of C in soil fractions, and ii quantifying water soluble phosphorus (WSP and estimating the Soil P Storage Capacity (SPSC. Total C in both soil orders was greater under silvopasture than in treeless pastures, particularly at lower depths. Stable-isotope signature analysis suggested that C3 plants (in this case, slash pine, Pinus elliotii contributed to a more stable C fraction than C4 plants (in this case, bahiagrass, Paspalum notatum at soil depths up to 1 m. WSP was consistently higher in treeless pastures, while the remaining SPSC was lower in this land-use system, suggesting the greater likelihood of P moving out of the soil under treeless pasture than in silvopasture. Thus, the presence of trees in pastures contributed to more stable C within the soil profiles, lower WSP, and greater SPSC, indicating more environmental benefits provided by silvopastoral systems as compared to treeless pastures under similar ecological settings.Nossa hipótese é de que devido à habilidade das árvores seqüestrarem carbono (C no perfil profundo do solo e remover o excesso de nutrientes dos solos, o sistema de silvopastagem agroflorestal poderia melhorar a qualidade ambiental de terras agricultáveis. Para testar esta hipótese, dois grupos de experimentos foram conduzidos em duas ordens de solos na Florida, Espodossolos e Ultissolos, com dois objetivos principais: i determinar a acumulação de C do solo e investigar as fontes de C para as plantas nas frações dos solos, e ii quantificar o fósforo sol

  18. GEOTECNOLOGY APPLIED TO CURRENT LAND USE EVALUATION OF RIBEIRÃO JOÃO LEITE WATERSHED, GOIÁS, BRAZIL GEOTECNOLOGIA APLICADA NA AVALIAÇÃO DO USO DAS TERRAS DA MICROBACIA DO RIBEIRÃO JOÃO LEITE, GOIÁS

    Directory of Open Access Journals (Sweden)

    Marco Túlio Guimarães Silva

    2009-10-01

    ;">KEY-WORDS: Agricultural potential; geoprocessing; remote sensing; watersheds.

    O desenvolvimento agropecuário no Estado de Goiás demanda utilização crescente de terras, por vezes de maneira inadequada, podendo proporcionar degradação ambiental. Este trabalho objetivou avaliar a adequação do uso das terras na Microbacia do Ribeirão João Leite, Goiás, Brasil (entre 16°13´S e 16°39´S, e 48°57´S e 49°11´W, utilizando-se geotecnologias. Por meio do software Spring, foram gerados mapas temáticos, baseados nos fatores determinantes das condições agrícolas das terras (deficiência de fertilidade, água e oxigênio, impedimento à mecanização e susceptibilidade à erosão, para a elaboração dos mapas de aptidão agrícola, das terras da área de estudo, nos manejos B e C. Foi, também, elaborado o mapa de uso e ocupação das terras, o qual foi, posteriormente, submetido a operações de tabulação cruzada com os mapas gerados de aptidão agrícola, obtendo-se a adequação do uso das terras. Os resultados constataram que a maior parte das terras da área estudada apresenta utilização de acordo ou abaixo do seu potencial agrícola, com 71,34% e 66,16%, respectivamente, nos níveis de manejo B e C. Observou-se, ainda, que apenas 1,81% (manejo B e 0,92% (manejo C da área apresentam suas terras com uso inadequado. Estes resultados caracterizam sustentabilidade da utilização agropecuária das terras da Microbacia do Ribeirão João Leite.

    Influência da adubação nitrogenada, época de plantio e aerosporos sobre a severidade da mancha de grãos em arroz de terras altas

    Directory of Open Access Journals (Sweden)

    Valácia Lemes da Silva-Lobo

    2011-09-01

    Full Text Available A mancha de grãos (MG ocupa o segundo lugar em importância econômica entre as doenças do arroz. Foi estudada a influência de níveis de adubação nitrogenada, época de plantio e concentração de esporos no ar sobre a severidade da doença no campo. A severidade de MG, na cultivar BRS Bonança, foi avaliada em duas épocas de plantio (30/11/2006 e 21/12/2006 e cinco doses de adubação nitrogenada (0, 30, 60, 120 e 240 kg de N.ha-1 utilizando o delineamento experimental de blocos ao acaso em esquema de parcelas subdivididas com três repetições. O efeito de dose de N sobre a severidade de MG não foi significativo. A correlação entre a severidade de MG e espiguetas vazias foi positiva e significativa. A população de fungos no ar (aerosporos foi quantificada utilizando armadilhas volumétricas, Rotorod Sampler, desde a emissão até o amadurecimento das panículas. A mancha de grãos aumentou linearmente com tempo (r = 0,98; P < 0,01, o mesmo não ocorreu com o aumento total de fungos que variou de 0,23 a 2,97 esporos/litro de ar/minuto. Os fungos presentes no ar em ordem decrescente de concentração foram Nigrospora sp., Pyricularia oryzae, Pithomyces sp., Alternaria sp., Cercospora sp., Fusarium sp., Curvularia sp. e Bipolaris sp. Estes fungos e Phoma sp. entre outros também foram detectados no teste de sanidade de sementes. A correlação entre a quantidade de esporos de P. oryzae e outros fungos foi linear e positiva (r = 0,80, P < 0,01. O número de esporos aumentou com o aumento da umidade relativa e diminuiu com o aumento da temperatura máxima de maneira exponencial.

  19. Terra firma-forme dermatosis

    Directory of Open Access Journals (Sweden)

    Aycan Özden Sezgin

    2013-09-01

    Full Text Available Terra firma-forme dermatosis (TFFD is an asymptomatic keratinization disorder of an unknown etiology which is characterized by dirt like brown hyperpigmented papillomatous plaques. Development of lesions is not associated with a hygiene disorder. The most important feature of the disease is that the lesions can not be removed by washing with soap and water, while they can only be removed by rubbing with 70% isopropyl alcohol or ethyl alcohol. Here, we present a child with terra firma-forme dermatosis who has been previously diagnosed as epidermal nevus.

  1. Fracionamento químico da matéria orgânica e características de ácidos húmicos de solos com horizonte a antrópico da amazônia (Terra Preta Chemical fractionation of organic matter and humic acid characteristic in anthropogenic dark earth soils of brazilian amazonic region

    Directory of Open Access Journals (Sweden)

    Tony Jarbas Ferreira Cunha

    2007-01-01

    Full Text Available Os solos da Amazônia que possuem horizonte A antrópico (Au apresentam elevada fertilidade natural geralmente atribuída ao teor elevado de matéria orgânica e à sua elevada reatividade. Neste estudo foram quantificadas as substâncias húmicas e caracterizados os ácidos húmicos (AH extraídos da camada 0-20 cm de solos com horizonte Au do estado do Amazonas (Terra Preta de Índio sob floresta e cultivo agrícola. Também foram investigadas amostras de solos adjacentes sem o horizonte antrópico. A caracterização dos AH foi realizada através de análise termogravimétrica, análise da composição elementar e quantificação dos grupos funcionais (total, carboxílica e fenólica. Os horizontes A de solos antropogênicos apresentaram maior teor de carbono total, comparados aos de solos adjacentes. Entre as frações húmicas, a mais abundante foi a humina. A fração de ácidos húmicos (AH foi a dominante das frações alcalino-solúveis nos solos estudados. Os AH dos solos antropogênicos tanto sob floresta como sob cultivo agrícola apresentaram maior grau de humificação quando comparados aos AH dos solos sem o horizonte Au. O cultivo agrícola também teve efeito na estabilidade e reatividade dos AH nos solos antropogênicos.Amazonian dark earth soils that have anthropogenic A horizon (Au present high natural fertility usually attributed to their high organic matter content and to their higher reactivity. In this study humic substances were quantified and the humic acids (HA extracted from the 0-20 cm layer of Amazonian dark earth soils (Terra Preta do Índio under forest and agricultural use were characterized. Adjacent soils with no Au horizon were also investigated. The HA were characterized through the thermogravimetric analysis, elemental composition analysis and characterization of functional groups (total, carboxylic, and phenolic. The A horizon of the anthropogenic soils presented higher total carbon level compared to

  2. Structure and composition of the ground-herb community in a terra-firme Central Amazonian forest Estrutura e composição da comunidade herbácea terrestre em uma floresta de terra-firme da Amazônia Central

    Directory of Open Access Journals (Sweden)

    Flávia Regina Capellotto Costa

    2004-01-01

    Full Text Available The herb community of tropical forests is very little known, with few studies addressing its structure quantitatively. Even with this scarce body of information, it is clear that the ground herbs are a rich group, comprising 14 to 40% of the species found in total species counts in tropical forests. The present study had the objective of increasing the knowledge about the structure and composition of the ground-herb community and to compare the sites for which there are similar studies. The study was conducted in a tropical non-inundated and evergreen forest 90 km north of Manaus, AM. Ground herbs were surveyed in 22 transects of 40 m², distributed in five plots of 4 ha. The inventoried community was composed of 35 species, distributed in 24 genera and 18 families. Angiosperms were represented by 8 families and Pteridophytes by 10 families. Marantaceae (12 sp and Cyperaceae (4 sp were the richest families. Marantaceae and Poaceae were the families with greatest abundance and cover. Marantaceae, Poaceae, Heliconiaceae and Pteridophytes summed 96% of total herb cover, and therefore were responsible for almost all the cover of the community. The 10 most important species had 83.7% of the individuals. In general, the most abundant species were also the most frequent. Richness per transect varied from 7 to 19 species, and abundance varied from 30 to 114 individuals. The community structure was quite similar to 3 other sites in South America and one site in Asia.A comunidade herbácea das florestas tropicais é pouco conhecida, havendo poucos estudos quantitativos de sua estrutura. Mesmo com esta quantidade escassa de informações, é possível afirmar que as ervas terrestres são um grupo rico, representando 14 a 40% das espécies encontradas em contagens totais de espécies em florestas tropicais. O presente estudo teve como objetivo aumentar o conhecimento sobre a estrutura e composição da comunidade de ervas terrestres e comparar as

  3. COVER CROPS EFFECTS ON THE DEVELOPMENT OF UPLAND RICE UNDER ORGANIC FARMING SYSTEM PLANTAS DE COBERTURA DE SOLO E SEUS EFEITOS NO DESENVOLVIMENTO DA CULTURA DO ARROZ DE TERRAS ALTAS EM CULTIVO ORGÂNICO

    Directory of Open Access Journals (Sweden)

    Roberta Paula de Jesus

    2007-12-01

    Full Text Available

    This research was conducted in an experimental area in Santo Antônio de Goiás (16º28'S, 49º17'W and altitude 823 m, Brazil, during the months of June, 2004, and March, 2005. The upland rice variety Aimoré was used along with several cover crops aiming to evaluate leaf area, number of tillers, dry matter, and nitrogen content in the phytomass during the rice crop cycle. The experimental design was the randomized blocks one, with five treatments and four replications. The treatments consisted of different cover crops, such as velvet bean (Mucuna aterrima, sunn hemp (Crotalaria juncea, dwarf pigeon pea (Cajanus cajan, broom sorghum (Sorghun bicolor, and a check treatment with spontaneous vegetation growing among the rice plants. The leguminous plants, specially C. juncea, presented better results in tillering production, leaf area index, dry matter yield, and accumulated nitrogen content, if compared to the treatments where grasses were used as soil cover crop. It was concluded that rice presented a satisfactory development in the different soil cover treatments, specially after leguminous cultivation.

    KEY-WORDS: Rice, green manure, leaf area index, dry matter.

    O experimento foi conduzido numa área experimental em Santo Antônio de Goiás (16º28'S, 49º17'W e altitude de 823 m, no período de junho de 2004 a março de 2005. Utilizou-se a cultivar Aimoré de arroz de terras altas, em seqüência a diferentes plantas de cobertura de solo, com o objetivo de avaliar o índice de área foliar (IAF, número de afilhos, acúmulo de massa de matéria seca (MMS e o teor de nitrogênio acumulado na fitomassa durante o ciclo da cultura do arroz. O delineamento experimental foi o de blocos ao acaso, com cinco

  4. THE USE OF IRON-DEXTRAN AND FREE AND CONTROLLED ACCESS TO RED SOIL IN THE PERFORMANCE AND PREVENTION OF IRON DEFICIENCY ANAEMIA IN PIGLETS USO DE FERRO DEXTRANO E ACESSO CONTROLADO E LIVRE À TERRA NO DESEMPENHO E PREVENÇÃO DA ANEMIA FERROPRIVA DOS LEITÕES

    Directory of Open Access Journals (Sweden)

    Romão da cunha Nunes

    2007-09-01

    Full Text Available

    A trial was carried out in order to evaluate the effects of free and controlled access to red soil, compared with the use of iron-dextran on the performance of weaning piglets and the prevention of iron deficiency anemia. Twelve groups of piglets from 17 sows and 2 boars crossed Landrace x Large White were submitted to the following treatments: T1 - Use of iron-dextran (200mg/piglet; T2 - Free access to soil daily; T3 - Access to soil in intervals of one day; T4 - Access to soil in intervals of two days in a completely randomized design, with three replicates per treatment. The results did not indicate any difference between the treatments in relation to the performance of piglets. The prevention of iron deficiency anemia was efficient when the iron-dextran was used and when the soil was freely offered daily or in one day-interval. The treatment with two days-interval showed values of hematocrite, in the 7th and 14th day, significantly lower than the other treatments.

    KEY-WORDS: Iron deficiency anemia; performance; piglets.

    Este trabalho teve o objetivo de verificar os efeitos do acesso à terra, controlado e livre, bem como o uso de ferro dextrano sobre o desempenho e a prevenção da anemia ferropriva em leitões. Foram utilizadas 12 leitegadas provenientes de um plantel de 17 matizes e 2 cachaços mestiços (Landrace x Large White. As leitegadas foram submetidas aos seguintes tratamentos: T1 - Ferro dextrano (200mg; T2 - Terra oferecida aos leitões diariamente; T3 - Terra oferecida aos leitões em dias alternados com intervalo de um dia; e T4 - Terra oferecida aos leitões em dias alternados com intervalos de 2 dias. O delineamento experimental utilizado foi o

  5. Land use and land change dynamic analysis in southeast region of Roraima – Amazonia= Análise da dinâmica das conversões de uso e cobertura da terra na região sudeste de Roraima - Amazônia

    Directory of Open Access Journals (Sweden)

    Maristela Ramalho Xaud

    2016-02-01

    Full Text Available Studying the dynamics of land use and land cover is of great relevance in understanding processes involving the occupation and consolidation of territory in the Amazon region. Remote sensing and its dataanalysis tools, such as techniques for detecting change, have high exploratory potential in quantifying and qualifying land use and land cover, as well as the processes of conversion and modification. The aim of this study was to analyse the dynamics of the changes in land use and the current land cover in already modified areas in the southeast of the State of Roraima, for the periods of 1997-2004 and 2004-2010. Conversions (groupings were analysed for settlement project and road distance (BR-210 and local. The results pointed out differences between the periods under analysis for the presence of change, characterising the period of 1997- 2004 as of intense activity in clearing forested areas in relation to the following period, when changes linked to previous land use predominated. The results showed a concentration of conversions by road distance, for up to 1500 m from the roads, resulting in increased loss of biomass in the most distant areas from one period to another, and suggests that this type of conversion was occurring on private property, a fact confirmed in field interviews. From one period to another, the increase in conversions from forest to pasture in two projects (Entre Rios and Caroebe may show a tendency towards increased farming activity in the region. = O estudo da dinâmica do uso e cobertura da terra tem relevância no entendimento dos processos que envolvem a ocupação e consolidação do território na região amazônica. O sensoriamento remoto e suas ferramentas de análise de dados, como as técnicas de detecção de mudanças, têm elevado potencial exploratório na quantificação e qualificação do uso e cobertura da terra, assim como dos seus processos de conversão e modificação. Objetivou-se com o presente

  6. Desenvolvimento do açaizeiro de terra firme, cultivar pará, sob atenuação da radiação solar em fase de viveiro Nursery development of non-flooded açai palm (Euterpe Oleraceae, Mart, Pará cultivar Under attenuation of solar radiation

    Directory of Open Access Journals (Sweden)

    Elenice de Cássia Conforto

    2009-01-01

    Full Text Available Para avaliar, na Região Noroeste do Estado de São Paulo, o desenvolvimento em fase de viveiro do açaizeiro da cultivar de terra firme Pará, foram monitoradas as respostas do crescimento e da taxa fotossintética, quando submetido a tratamentos de atenuação de 16% e 50% da radiação solar global, até a idade de 8 meses. A altura da planta e o diâmetro do caule, assim como a acumulação de matéria seca, não foram influenciados pelos tratamentos (pIn the northwest region of São Paulo State, Brazil was investigated the outcomes of the plant growth and photosynthetic rate of a açai palm cultivar Para (PA, under attenuation of total radiation in 16% and 50% until the age of 8 months. The plant height, the stem diameter and the dry matter accumulation were not influenced by the treatments (p<0.05. However, plants growing under lower attenuation of irradiance started to show significant lower values of leaf area in 5 months; and rate of net photosynthesis and irradiance saturation after 6 months (p<0.05. These results indicated that the seedlings has a potential to adapt in this region, since maintained under attenuation of 50% of irradiance.

  7. Características químicas de solos de várzeas sob diferentes sistemas de uso da terra, na calha dos rios baixo Solimões e médio Amazonas Chemical characteristics of floodplain soils in different of land uses system in the Solimões/Amazonas river channel

    Directory of Open Access Journals (Sweden)

    Juan Daniel Villacis Fajardo

    2009-01-01

    Full Text Available Foram estudados os solos de várzea alta e baixa em quatro municípios situados na calha dos rios baixo Solimões e médio Amazonas (Manacapuru, Iranduba, Itacoatiara e Silves, com o objetivo de avaliar as características químicas dos solos assim como os possíveis efeitos da unidade de paisagem e dos diferentes sistemas de uso da terra sobre o estoque de nutrientes nesses solos. Um total de 19 diferentes sistemas de uso da terra foi amostrado, sendo oito no baixo rio Solimões e onze no médio rio Amazonas. Os solos foram amostrados nas camadas de 0-10, 10-20 e 20-40 cm de profundidade. As determinações efetuadas foram: pH, Al, Ca, Mg, K, P, C, N, Zn, Cu, Mn e Fe. Todos os sistemas de uso da terra amostrados apresentaram uma alta disponibilidade de Ca, Mg, P, Zn, Cu, Mn e Fe. Apesar do elevado teor de K encontrado na maioria das amostras analisadas, as áreas de capoeiras e sítios na região do médio rio Amazonas, apresentaram uma concentração média de K mostrando que esse nutriente em algumas áreas de várzea pode se tornar limitante. Ao contrário dos outros sistemas de cultivo que apresentaram baixas concentrações de Al trocável, os sistemas de floresta e capoeiras apresentaram acidez elevada e valores tóxicos, desse elemento. Na maior parte dos sistemas de uso da terra estudados, os níveis de C e N no solo foram baixos confirmando que o N é um dos principais nutrientes limitantes para a produção agrícola em área de várzea na Amazônia.The Solimoes/Amazonas River channel high and low land floodplain soils were studied on Manacapuru, Iranduba, Itacoatiara and Silves townships, with purpose the evaluate the chemical characteristics of floodplain soils, as well as, the effect of land use system on soil nutrient status. Nineteen different systems were sampled, eight in the low Solimões river and eleven in medium Amazonas river. Sampling was performed on 0-10, 10-20 and 20-40 cm deep upper soil layers. Contents of pH, Al, Ca

  8. TerraSAR-X mission

    Science.gov (United States)

    Werninghaus, Rolf

    2004-01-01

    The TerraSAR-X is a German national SAR- satellite system for scientific and commercial applications. It is the continuation of the scientifically and technologically successful radar missions X-SAR (1994) and SRTM (2000) and will bring the national technology developments DESA and TOPAS into operational use. The space segment of TerraSAR-X is an advanced high-resolution X-Band radar satellite. The system design is based on a sound market analysis performed by Infoterra. The TerraSAR-X features an advanced high-resolution X-Band Synthetic Aperture Radar based on the active phased array technology which allows the operation in Spotlight-, Stripmap- and ScanSAR Mode with various polarizations. It combines the ability to acquire high resolution images for detailed analysis as well as wide swath images for overview applications. In addition, experimental modes like the Dual Receive Antenna Mode allow for full-polarimetric imaging as well as along track interferometry, i.e. moving target identification. The Ground Segment is optimized for flexible response to (scientific and commercial) User requests and fast image product turn-around times. The TerraSAR-X mission will serve two main goals. The first goal is to provide the strongly supportive scientific community with multi-mode X-Band SAR data. The broad spectrum of scientific application areas include Hydrology, Geology, Climatology, Oceanography, Environmental Monitoring and Disaster Monitoring as well as Cartography (DEM Generation) and Interferometry. The second goal is the establishment of a commercial EO-market in Europe which is driven by Infoterra. The commercial goal is the development of a sustainable EO-business so that the e.g. follow-on systems can be completely financed by industry from the profit. Due to its commercial potential, the TerraSAR-X project will be implemented based on a public-private partnership with the Astrium GmbH. This paper will describe first the mission objectives as well as the

  9. Dinámica espacial de la tierra en la cuenca del arroyo de la Figuera - São Manuel (SP Dinâmica espacial do uso da terra na microbacia do Córrego da Figueira - São Manuel (SP

    Directory of Open Access Journals (Sweden)

    Flávia Meinicke Nascimento

    2012-06-01

    Full Text Available

    Este trabalho teve como objetivo caracterizar a evolução do uso e ocupação do solo no período de 20 anos, bem como verificar as possíveis áreas de conflito de uso do solo em APP ocorrentes na Microbacia do Córrego da Figueira – Município de São Manuel (SP, obtidas de imagens de satélite por meio do aplicativo Carta Linx e do SIG-Idrisi; tendo como base cartográfica as imagens de satélite Landsat 5, bandas 3; 4 e 5, órbita 220, ponto 76, quadrante A, passagens 1990 e 2010. Os resultados mostraram que o SIG Idrisi Andes 15.0 foi eficiente na identificação e mapeamento das áreas de uso da terra, facilitando o processamento dos dados. A área ocupada predominantemente pela cultura canavieira mostrou que as alterações espaço-temporal praticamente não ocorreram nos últimos 20 anos. O mapeamento das áreas de conflito de uso permitiu verificar que a área de estudo está bem preservada, sendo o conflito inexpressivo, pois o relevo plano a ondulado da Microbacia é totalmente favorável para o cultivo da cana-de-açúcar. Os resultados permitiram inferir que as classes de declive de 0 a 3% e de 3 a 6% representam mais de 84% da área e as de 0 a 20% predominaram em quase 100% da microbacia.

    Este estudio tuvo como objetivo caracterizar la evolución del uso y ocupación del suelo dentro de los 20 años, y determinar las posibles áreas de conflicto de uso del suelo tierra en APP que ocurre en la Cuenca del corego de la Figueira - Municipio de SãoManuel (SP, obtenido a partir de imágenes de satelitales a través de la aplicación del aplicativo Carta Linux y del SIG Idrisi: teniendo por base cartográfica imágenes del satélite Landsat 5, bandas 3, 4 y 5, la órbita 220, punto 76, en el cuadrante A, pasajes 1990 y 2010. Los resultados mostraron que el SIG Idrisi Andes - 15,0 fue eficaz en la identificación y mapeo del uso del suelo, facilitando el tratamiento de los datos. El

  10. Persistence of insecticidal activity and repellency of the diatomaceous earth against the lesser mealworm Alphitobius diaperinus (Panzer, 1797 (Coleoptera: Tenebrionidae / Persistência da ação inseticida e repelência da Terra de Diatomácea para o cascudinho-dos-aviários Alphitobius diaperinus (Panzer, 1797 (Coleoptera: Tenebrionidae

    Directory of Open Access Journals (Sweden)

    Dhyego Thomazoni

    2009-07-01

    Full Text Available The persistence and repellency of the diatomaceous earth (DE formulation was evaluated against the lesser mealworm, Alphitobius diaperinus. Persistence bioassays werw conduced in 20 cm diameter plastic cups with DE-treated poultry litter (172g/m2. The adults were transferred (13g – about 1100 insects and the mortality was assessed by counting and removing dead adult beetles in the cups 10, 20 and 30 days after placement. All procedures were repeated 80, 160, 240, 320 and 400 days after first evaluation. The repellency test was conducted in plastic box (36×24×6 cm L×W×H containing poultry litter trated and non-treated with DE (200g/m2, distribuited in two parts. The adults were added to the litter (13g, and the evaluation ocurred after 1, 4 and 7 days after placement, by counting the insects in the treated and non-treated area. It was verified the inseticidal activity until eight month after litter treatment (60% of mortality, showing the persistence of the product. The repellency activity of the DE was confirmed and it must be considered in a development of control strategies of the lesser mealworm with.A persistência da ação inseticida da terra de diatomácea (TD, e o seu efeito repelente foram avaliados contra o cascudinho-dos-aviários, Alphitobius diaperinus. Para o experimento de persistência foram utilizados potes plásticos (20 cm de diâmetro com cama tratada com TD (172g/m2. Foram liberados 13g de adultos de cascudinho (cerca de 1100 insetos, e a mortalidade foi avaliada retirando-se e fazendo a contagem dos insetos mortos nos recipientes 10, 20 e 30 dias após a infestação. Este procedimento repetiu-se com 80, 160, 240, 320 e 400 dias após a aplicação de TD. Para avaliação da repelência foram utilizadas bandejas plásticas com (36×24×6 cm C×L×A, contendo 5 cm de cama de aviário tratada e não-tratada com TD (200g/m2 em metade de cada bandeja. Foram liberados 13g de adultos de cascudinho na linha de divisão dos

  11. Avaliação de atributos de Latossolo Bruno e de Terra Bruna Estruturada da região de Guarapuava, Paraná, por meio de sua energia refletida

    OpenAIRE

    Demattê, J.A.M.; G. J. Garcia

    1999-01-01

    Este trabalho teve por objetivo estudar espectralmente amostras de Latossolo Bruno e Terra Bruna Estruturada, provenientes de rochas vulcânicas ácidas na região Centro Sul do estado do Paraná, nas profundidades de 0-20 e 40-60 cm. Foram realizadas a caracterização, discriminação e previsão dos atributos desses solos por meio de sua energia refletida, obtidas em laboratório, pelo sensor IRIS, na faixa espectral de 400 a 2.500 nm. Foi possível discriminar os solos pela intensidade de reflectânc...

  12. Setting new Cosmology constraints with ALMA

    CERN Document Server

    Messias, Hugo

    2014-01-01

    I make a short revision of Cosmology questions which ALMA was built to address. Without diving into much detail, I point out the ALMA specifications and strategies which are expected to provide a better handle of: the temperature evolution of the Cosmic Microwave Background (CMB) and the properties of its secondary anisotropies (such as the thermal and kinetic Sunyaev-Zel'dovich and the Ostriker-Vishniac effects); variability of dimensionless fundamental constants; Ho and galaxy initial mass function by means of strong gravitational lensing; black hole science with the greatly expected Event Horizon Telescope.

  13. Chilean virtual observatory and integration with ALMA

    Science.gov (United States)

    Solar, Mauricio; Fariña, Walter; Mardones, Diego; Antognini, Jonathan; Pichara, Karim; Nagar, Neil; Parada, Victor; Ibsen, Jorge; Nyman, Lars; Marroquin, José

    2014-08-01

    The Virtual Observatories strive to interoperate, exchange data and share services as if it was only one big VO. In this work, the state of the art of VOs will be presented and summarized in a schematic diagram with the frequency range of the observed data that every VO publishes. Chile, currently a member of the IVOA, collaborates with the Atacama Large Millimeter/submillimeter Array (ALMA), to study and propose ways to adequate the data generated by ALMA to the different data model proposed by the IVOA.

  14. A questão social da terra como desafio para a psicologia La cuestión social de la tierra como desafío para la psicología The social issue of land as a challenge to psychology

    Directory of Open Access Journals (Sweden)

    José Rogério Lopes

    2007-12-01

    Full Text Available O artigo discute os processos de problematização da questão social da terra na sociedade brasileira, de forma a questionar seus desdobramentos atuais para os estudos em Psicologia. A partir da noção de "espaço de coexistência", o autor elabora uma reflexão que objetiva identificar oposições conceituais concernentes à análise da questão social da terra e suas implicações para o entendimento das modernas lutas sociais, no campo. Nesse contexto, indica perspectivas para pensar os modelos de racionalidade e subjetividade em disputa nesses processos e os desafios epistemológicos e metodológicos que se colocam para a atuação dos psicólogos.El artículo discute los procesos de problematización de la cuestión social de la tierra en la sociedad brasileña, con la intención de cuestionar sus discusiones actuales para los estudios en Psicología. A partir de la noción de "espacio de coexistencia", el autor elabora una discusión que tiene por objeto identificar oposiciones conceptuales concernientes al análisis de la cuestión social de la tierra y sus implicaciones para el entendimiento de las modernas luchas sociales en el campo. En este contexto, indica perspectivas para pensar los modelos de racionalidad y subjetividad en disputa en esos procesos, así como los desafíos epistemológicos y metodológicos que se colocan para la actuación de los psicólogos.Processes in the problematization of the social issue of land in Brazilian society are discussed in an attempt to question its current unfolding within psychological studies. Based on the notion of "co-existential space", reflections are envisaged to identify the conceptual oppositions concerning the analysis of the social issue of land and its implications for the understanding of modern social struggles in the countryside. Current essay points towards certain perspectives within models of rationality and subjectivity that contend these processes, coupled to epistemological

  15. Terra firma-forme dermatosis.

    Science.gov (United States)

    Oztürk, Ferdi; Kocabaş, Engin; Ertan, Pelin; Ermertcan, Aylin Türel

    2010-12-01

    Terra firma-forme dermatosis (TFFD) is an uncommon disorder of keratinization with an unknown etiology in which patients present with dirt-like lesions that are resistant to washing. A 6-year old girl presented with the complaint of an asymptomatic brownish black dirt-like eruption on her body. Her parents reported no response to washing with soap and water. Dermatologic examination revealed brown hyperpigmented patches on the trunk and abdominal region. TFFD was suspected, and isopropyl alcohol was applied to the patient's lesions. All lesions completely disappeared after rubbing with alcohol. Terra firma-forme dermatosis is a relatively recently described entity that is much more common than might be expected when surveying the medical literature. With the very few reports found in the literature about TFFD, we believe that an increased awareness of this entity among primary care physicians would help decrease unnecessary worries or medical procedures, since TFFD lesions simply resolve by rubbing with isopropyl alcohol. PMID:20684734

  16. Terra firma-forme dermatosis

    Directory of Open Access Journals (Sweden)

    Emel Erkek

    2012-01-01

    Full Text Available Terra firma-forme dermatosis is characterized by ′dirty′ brown-grey cutaneous patches and plaques that can simply be eradicated by forceful swabbing with alcohol pads. The pathogenesis has been attributed to abnormal and delayed keratinization. Although affected patients present with typical lesions, the disorder is not well-known by dermatologists. In this report, we describe two patients with terra firma-forme dermatosis in the setting of xerosis cutis and atopic dermatitis. From a clinical point of view, we lay emphasis on its unique expression and diagnosis/treatment. From a histological perspective, we highlight its resemblance to dermatosis neglecta and speculate on the role of ′neglect′ in a patient with seemingly adequate hygiene. The role of urea containing emollients in the development of this disorder remains to be determined.

  17. First ALMA Transporter Ready for Challenging Duty

    Science.gov (United States)

    2008-07-01

    The first of two ALMA transporters -- unique vehicles designed to move high-tech radio-telescope antennas in the harsh, high-altitude environment of the Atacama Large Millimeter/submillimeter Array -- has been completed and passed its initial operational tests. The 130-ton machine moves on 28 wheels and will be able to transport a 115-ton antenna and set it down on a concrete pad within millimeters of a prescribed position. ALMA Transporter The ALMA Transporter on a Test Run CREDIT: ESO Click on image for high-resolution file (244 KB) The ALMA transporter rolled out of its hangar and underwent the tests at the Scheuerle Fahrzeugfabrik company site near Nuremberg, Germany. The machine is scheduled for delivery at the ALMA site in Chile by the end of 2007, and a second vehicle will follow about three months later. ALMA is a giant, international observatory under construction in the Atacama Desert of northern Chile at an elevation of 16,500 feet. Using at least 66 high-precision antennas, with the possibility of increasing the number in the future, ALMA will provide astronomers with an unprecedented ability to explore the Universe as seen at wavelengths of a few millimeters to less than a millimeter. By moving the antennas from configurations as compact as 150 meters to as wide as 15 kilometers, the system will provide a zoom-lens ability for scientists. "The ability to move antennas to reconfigure the array is vital to fulfilling ALMA's scientific mission. The operations plan calls for moving antennas on a daily basis to provide the flexibility that will be such a big part of ALMA's scientific value. That's why the transporters are so important and why this is such a significant milestone," said Adrian Russell, North American Project Manager for ALMA. "The ALMA antennas will be assembled and their functionality will be verified at a base camp, located at an altitude of 2900 meters (9500 feet) and the transporters will in a first step bring the telescopes up to the

  18. The exciting future of (sub-)millimeter interferometry: ALMA

    CERN Document Server

    Casasola, V

    2010-01-01

    The Atacama Large Millimeter/submillimeter Array (ALMA), presently under construction, is a revolutionary astronomical interferometer, that will operate at (sub)millimeter wavelengths. With unprecedented sensitivity, resolution, and imaging capability, ALMA will explore the (sub-)mm Universe, one of astronomy's last frontiers. ALMA is expected to provide insight in star- and galaxy formation in the early Universe and to image local star- and planet formation in great detail. The ALMA Commissioning and Science Verification phase is currently in course, preparing the path for Early Science. The Call for ALMA Early Science proposals is expected to be released before the end of 2010. In this contribution we will describe the ALMA project, the array and its receivers, its science goals, and its scientific and technological potential. We will outline the organizational structure of the ALMA Regional Centres, that will play an important role in providing support to the users, with particular attention to the Italian...

  19. ALMA Capabilities for Observations of Spectral Line Emission

    CERN Document Server

    Wootten, A

    2007-01-01

    The Atacama Large Millimeter/submillimeter Array (ALMA) combines large collecting area and location on a high dry site to provide it with unparalleled potential for sensitive millimeter/submillimeter spectral line observations. Its wide frequency coverage, superb receivers and flexible spectrometer will ensure that its potential is met. Since the 1999 meeting on ALMA Science\\cite{RefA}, the ALMA team has substantially enhanced its capability for line observations. ALMA's sensitivity increased when Japan joined the project, bringing the 16 antennas of the Atacama Compcat Array (ACA), equivalent to eight additional 12m telescopes. The first four receiver cartridges for the baseline ALMA (Japan's entry has brought two additional bands to ALMA's receiver retinue) have been accepted, with performance above the already-challenging specifications. ALMA's flexibility has increased with the enhancement of the baseline correlator with additional channels and flexibility, and with the addition of a separate correlator f...

  20. ESO and NSF Sign Agreement on ALMA

    Science.gov (United States)

    2003-02-01

    Green Light for World's Most Powerful Radio Observatory On February 25, 2003, the European Southern Observatory (ESO) and the US National Science Foundation (NSF) are signing a historic agreement to construct and operate the world's largest and most powerful radio telescope, operating at millimeter and sub-millimeter wavelength. The Director General of ESO, Dr. Catherine Cesarsky, and the Director of the NSF, Dr. Rita Colwell, act for their respective organizations. Known as the Atacama Large Millimeter Array (ALMA), the future facility will encompass sixty-four interconnected 12-meter antennae at a unique, high-altitude site at Chajnantor in the Atacama region of northern Chile. ALMA is a joint project between Europe and North America. In Europe, ESO is leading on behalf of its ten member countries and Spain. In North America, the NSF also acts for the National Research Council of Canada and executes the project through the National Radio Astronomy Observatory (NRAO) operated by Associated Universities, Inc. (AUI). The conclusion of the ESO-NSF Agreement now gives the final green light for the ALMA project. The total cost of approximately 650 million Euro (or US Dollars) is shared equally between the two partners. Dr. Cesarsky is excited: "This agreement signifies the start of a great project of contemporary astronomy and astrophysics. Representing Europe, and in collaboration with many laboratories and institutes on this continent, we together look forward towards wonderful research projects. With ALMA we may learn how the earliest galaxies in the Universe really looked like, to mention but one of the many eagerly awaited opportunities with this marvellous facility". "With this agreement, we usher in a new age of research in astronomy" says Dr. Colwell. "By working together in this truly global partnership, the international astronomy community will be able to ensure the research capabilities needed to meet the long-term demands of our scientific enterprise, and

  1. Adaptabilidade e estabilidade de genótipos de tomateiro sob cultivo em solos de terra firme e várzea da amazônia infestados por Ralstonia solanacearum Adaptability and stability of tomato genotypes under cultivated in amazon upland and floodplain soils infested by Ralstonia solanacearum

    Directory of Open Access Journals (Sweden)

    Maria Albanira Araújo Pena

    2010-01-01

    Full Text Available A resistência genética à bactéria Ralstonia solanacearum, o patógeno da doença "murcha bacteriana", é uma condição necessária para o cultivo do tomateiro nos solos naturalmente infestados pelo patógeno nos ambientes de terra firme e várzea da região amazônica. Neste trabalho avaliou-se a adaptabilidade e estabilidade quanto à resistência genética ao patógeno e à produtividade de progênies de gerações avançadas (F13 e F14 do cruzamento HT -16, que deu origem à variedade resistente Yoshimatsu, quando cultivadas em solos de terra firme e várzea infestados por R. solanacearum. Foram realizados ensaios em quatro ambientes, dois em terra firme e dois na várzea, em solos naturalmente infestados pelo patógeno e com oito genótipos de tomateiro: Santa Cruz Kada, utilizada como padrão de suscetibilidade ao patógeno; Caraíba, como padrão de resistência; C-38; Yoshimatsu 4-11 e mais quatro progênies F13 e F14 do cruzamento HT-16. Os caracteres utilizados para avaliação da resistência e produtividade foram: Taxa de Infecção (QR, para doenças monocíclicas, segundo PLANK (1963; Índice de Sanidade (IS, segundo NODA (1981; Produção Total de Frutos (PTF e Número Total de Frutos (NTF. As estimativas dos parâmetros de adaptabilidade e estabilidade fenotípica, obtidas pelo método proposto por EBERHART e RUSSEL (1966, expressos em níveis de resistência genética à bactéria R. solanacearum e rendimento em frutos, revelaram que as progênies avançadas são adaptadas ao cultivo em ambientes de terra firme e várzea infestadas pelo patógeno e evidenciaram superioriodade quando comparadas com a cultivar Yoshimatsu 4-11, obtida na geração F7.The genetic resistance to Ralstonia solanacearum, the agent of "bacterial wilt" disease, is a condition for tomato cultivation in soils naturally infested by the pathogen in the Amazon upland and floodplain environments. In this work the adaptability and stability of the genetic

  2. Espiritualidade e disposições perante a morte em Santa Maria da Feira : capelas, legados e bens d'alma na matriz de S. Nicolau durante o Antigo Regime

    OpenAIRE

    Pedro Vilas Boas Tavares

    2008-01-01

    From the Municipal Historical Archive of Santa Maria da Feira's documentation referring to the church of this city (Lóios), the author tries to rebuild the "attitude towards death" of the social, resident groups during the Ancient Regime and their repercussion in material works, spirituality and liturgical life centred on this church.

  3. ALMA communication backbone in Chile goes optical

    Science.gov (United States)

    Filippi, G.; Ibsen, J.; Jaque, Sandra; Liello, F.; Navarro, C.

    2014-07-01

    High-bandwidth communication has become a key factor for scientific installations as Observatories. This paper describes the technical, organizational, and operational goals and the level of completion of the ALMA Optical Link Project. The project focus is the creation and operation of an effective and sustainable communication infrastructure to connect the ALMA Observatory, located in the Atacama Desert, in the Northern region of Chile, with the point of presence in ANTOFAGASTA, about 400km away, of the EVALSO infrastructure, and from there to the Central Office in the Chilean capital, Santiago. This new infrastructure that will be operated in behalf of ALMA by REUNA, the Chilean National Research and Education Network, will use state of the art technologies, like dark fiber from newly built cables and DWDM transmission, allowing extending the reach of high capacity communication to the remote region where the Observatory is located. When completed, the end-to-end Gigabit-per-second (Gbps) capable link will provide ALMA with a modern, effective, robust, communication infrastructure capable to cope with present and future demands, like those coming from fast growing data transfer to rapid response mode, from remote monitoring and engineering to virtual presence.

  4. O manejo da copaíba pelas etnias Arara e Gavião na Terra Indígena Igarapé Lourdes, Rondônia, Norte do Brasil

    OpenAIRE

    Flávia Dinah Rodrigues de Souza; Niro Higuchi

    2014-01-01

    O objetivo deste trabalho foi identificar e avaliar o potencial de produção de óleoresina de Copaifera multijuga Hayne, proveniente de 100 árvores re-exploradas e de 36 manejadas pela primeira vez no ano de 2008, na Terra Indígena Igarapé Lourdes (território das etnias Arara e Gavião), em Rondônia. Para cada árvore, foram medidos o diâmetro à altura do peito (DAP) e a quantidade de óleoresina liberada, e identificados os indivíduos, com base em características dendrológicas. Os resultados ind...

  5. The life-time concept as a tool for erosion tolerance definition O conceito de tempo-de-vida como ferramenta para a definição da tolerância de perda de terra por erosão

    Directory of Open Access Journals (Sweden)

    G. Sparovek

    1997-06-01

    extreme soil degradation risk of the Ceveiro watershed in an integral and reliable form.Por definição, a tolerância de perda de terra por erosão deve considerar a preservação do solo como um recurso natural essencial para a produção das culturas. Taxas de erosão do solo superiores a sua renovação ocasionam diminuição da sua espessura. Uma espessura mínima foi definida como sendo a espessura abaixo da qual os insumos (fertilizantes, resíduos de culturas e a tecnologia de manejo (irrigação, culturas geneticamente melhoradas são insuficientes para manter economicamente a produtividade. Assim, taxas de erosão maiores do que a formação podem ser aceitas somente durante o tempo no qual não foi atingida a espessura mínima. Este período foi definido como tempo-de-vida. O conceito de tempo-de-vida foi aplicado na bacia do Ceveiro (1.945 ha, localizada em Piracicaba no sudeste do Brasil. O cálculo do tempo de vida foi realizado usando Sistema de Informações Geográficas. Para isto foram utilizadas estimativas das taxas de erosão pela Equação Universal de Perda de Solo e das profundidades do solo obtidas em levantamento de campo. Foram consideradas ainda uma taxa de formação de 0,2 mm ano-1, uma profundidade mínima do solo de 1,0m, e o cenário atual de uso da terra. Ò uso da terra se distribui em 1.319 ha (68% de cana-de-açúcar, 346 ha (18% de florestas e 278 ha (14% de pastagens. A área na qual a erosão foi menor do que a formação (área não associada a impactos irreversíveis representou 475 ha (24%. Esta área inclui o total de florestas, 48% das pastagens e nenhuma área de cana-de-açúcar. A área com taxas de erosão maiores do que a formação e profundidade do solo menor que 1,0 m, representou 832 ha (42%, nos quais o tempo de-vida é igual a zero (impactos irreversíveis da erosão no tempo atual. O uso da terra nesta situação se compõe de 702 ha de cana-de-açúcar e 130 ha de pastagens. Para a área restante de 638 ha (32% da

  6. Terra Firma-forme Dermatosis

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    Anagha Ramesh Babu

    2013-01-01

    Full Text Available Terra firma-forme dermatosis is a cutaneous discoloration. ‘Dirty’ brown grey cutaneous patches and plaques that can be rid off by forceful swabbing with alcohol pads characterize it. The pathogenesis has been attributed to abnormal and delayed keratinization. It poses no medical threat. A 40-year-old male patient presented to the Department of Dermatology with a 2-3 month history of persistent pigmented patches on both upper arms. The lesions were not associated with itching or burning sensation. He gives no history of exacerbation on exposure to the sun.

  7. Geoprocessing apllied in the description of the classes of land use capability in the watershed of Alto Capivara, aiming its environmental sustainabiliy Geoprocesamiento aplicado a la discriminación de las clases de capacidad de uso del suelo de la cuenca del Alto Capivara, con vistas a la sostenibilidad medioambiental Geoprocessamento aplicado na discriminação das classes de capacidade de uso da terra da microbacia do Alto Capivara, visando sua sustentabilidade ambiental

    Directory of Open Access Journals (Sweden)

    Sérgio Campos

    2011-09-01

    with the table of soil use capability judgment and the constant recommendation on the utilitarian survey of the physical environment and the classification of the land in the capability of use system. The Geographic Information System enabled to verify that the watershed is constituted by the subclass IIIe,s (1/3 and by sandy soils of low to medium fertility (99,11%. The area is constituted by almost 2/3 of soil Nitossolo Vermelho Distroférrico (59,3%.

    A determinação da capacidade de uso das terras é muito importante para o planejamento de uso do solo, pois o uso inadequado e sem planejamento das terras provoca a baixa produtividade das culturas. Este trabalho objetivou determinar as classes de capacidade de uso da terra da microbacia do Alto Capivara - Botucatu (SP, visando o planejamento de práticas de conservação do solo na área. A microbacia com 4551,19 ha situa-se entre as coordenadas geográficas 22o 51’ 57’’ a 22o 57’ 55’’ de latitude S e 48o 21’ 58’’ a 48o 26’ 38’’ de longitude W Gr. A carta de capacidade de uso da terra da bacia foi obtida a partir do cruzamento das cartas de declividade e de solos com a tabela de julgamento das classes de capacidade de uso do solo e das recomendações constantes no levantamento utilitário do meio físico e classificação das terras no sistema de capacidade de uso. O Sistema de Informação Geográfica permitiu verificar que a microbacia é constituída pela subclasse IIIe,s (1/3 e por solos arenosos de baixa a média fertilidade (99,11%. A área é constituída por quase 2/3 do solo Nitossolo Vermelho Distroférrico (59,3%.

  8. Astronomy at School: Measurements of the Earth-Moon Distance. (Spanish Title: Astronomía en la Escuela: Medición de la Distancia Tierra-Luna.) Astronomia na Escola: Medida da Distância Terra-Lua

    Science.gov (United States)

    Paolantonio, Santiago; Pintado, Olga I.

    2006-12-01

    The aim of this project is to approach High School students to Science. We propose to measure the Earth-Moon distance using the parallax. The observation and measurements techniques and all the calculations needed are described in this paper. The results obtained in a test experience realized during 2003 are presented. This test shows that this is a feasible project and also shows which things needed to be improved. Se plantea la propuesta de un proyecto educativo dirigido al Nivel Medio de enseñanza, consistente en la determinación de la distancia Tierra - Luna por paralaje. Se describen las técnicas de observación, mediciones y cálculos. Se proporcionan a continuación los resultados obtenidos en la experiencia piloto realizada en el 2003, la que permitió comprobar la factibilidad de llevar a cabo la propuesta, así como perfeccionar los diferentes aspectos involucrados en la misma. Propomos neste trabalho um projeto educativo dirigido ao Ensino Médio que consiste na determinação da distância Terra-Lua pelo efeito da paralaxe. As técnicas de observação, medidas e cálculos auxiliares são descritos, e os resultados obtidos numa experiência-teste realizada no ano de 2003 apresentados. Este último teste permitiu comprovar a viabilidade de execução da proposta e aperfeiçoar diversos aspectos da mesma.

  9. Land use analysis for slope classes in watershed using GIS analysis Análisis del uso del suelo por clases de pendiente en la cuenca utilizando SIG Análise do uso da terra por classes de declividade em microbacia hidrográfica usando geoprocessamento

    Directory of Open Access Journals (Sweden)

    Sérgio Campos

    2010-04-01

    Full Text Available

    O objetivo deste trabalho foi o levantamento do uso da terra na microbacia hidrográfica do Córrego Limoeiro situada nos municípios de Presidente Prudente e Álvares Machado no Oeste do Estado de São Paulo. O referido levantamento foi efetuado utilizando-se uma imagem do sensor TM do satélite Landsat 7 e o Sistema de Informações Geográficas Idrisi. O resultado do levantamento foi analisado estatisticamente através do índice kappa. Em seguida, digitalizaram-se as curvas de nível da microbacia que foram interpoladas para fornecer as classes de declive de toda a área estudada. Depois disso, cruzou-se as classes de declive com o uso da terra com a finalidade de verificar os principais usos da terra em cada classe de declive. Observou-se que a pecuária e a área urbanizada são as principais ocupações do solo na microbacia. Observou-se ainda que as classes de declive predominantes na área estudada são aquelas entre 3 e 12 por cento.

    El objetivo de este trabajo fue la evaluación del uso del suelo en la cuenca de arroyo Limoeiro ubicados en las ciudades de Presidente Prudente y Álvarez Machado en el oeste de Sao Paulo. Esta evaluación se realizó mediante un sensor de imagen del Landsat TM 7 y el Sistema de Información Geográfica Idrisi. A continuación, las curvas de nivel de la cuenca fueran digitalizados y interpolados para obtener las clases de pendiente del área de estudio. Después, las clases pendiente fueran correlacionadas con el uso de la tierra con el fin de identificar los principales usos de la tierra en cada clase de pendiente. Se observó que la exploración agropecuaria y urbana son las principales ocupaciones de tierras en la cuenca. También se observó que las clases pendiente predominantes en la área de estudio son entre el 3 y 12 por ciento.

    The objective of this work was to survey the land use at Limoeiro watershed placed on the Presidente

  10. Discriminação de gênero e participação política: a atuação da mulher sem terra - DOI: 10.4025/actascihumansoc.v25i1.2208 Gender prejudice and political participation: the landless woman's performance - DOI: 10.4025/actascihumansoc.v25i1.2208

    Directory of Open Access Journals (Sweden)

    Miryam Mager

    2003-06-01

    Full Text Available O presente artigo apresenta os resultados de uma pesquisa realizada na área de Psicologia Comunitária, em um acampamento do Movimento dos Trabalhadores Rurais Sem Terra, situado na região noroeste do Paraná. A investigação teve como objetivo conhecer a participação das mulheres nos processos decisórios realizados no acampamento. A utilização da metodologia da pesquisa participante possibilitou a inserção na comunidade e o conhecimento, de maneira mais aprofundada, do contexto no qual está inserida. A coleta de dados, através do relato de histórias de vida permitiu verificar os aspectos subjetivos que permeiam as relações sociais entre os acampados. A compreensão dos aspectos socioculturais presentes no acampamento e as relações de gênero ali estabelecidas são relevantes para a compreensão das características objetivas e subjetivas presentes na atividade e identidade da mulher Sem Terra. Esses constituem fatores importantes que determinam sua participação nas decisões que são tomadas no acampamento e a maneira como isso aconteceThe present article presents the results of a study carried out in the field of Community Psychology, in a camp of the Rural Movement of the Landless Workers (in Portuguese, MST, in the northwest area of Paraná state. The aim of the investigation was to know the women's participation in the decision processes accomplished in the camp. The use of participatory research methodology facilitated the insert in the community and deep knowledge of the context in which it is inserted; the collection of data through the report of life histories allowed to verify the subjective aspects that permeate the social relationships among the campers. The understanding of the current sociocultural aspects in the camp and the established gender relationships are relevant for understanding the objective and subjective characteristics present in the landless woman's identity and activity. These constitute important

  11. Educação e linguagem: uma reflexão teórica acerca da formação das identidades das crianças sem-terra = Children's literature and everyday experiences: relationships established by children

    Directory of Open Access Journals (Sweden)

    Cerezoli, Jaqueline

    2012-01-01

    Full Text Available Este trabalho realiza uma reflexão teórica a respeito da formação das identidades das crianças sem-terrinha, tendo em vista o modelo educacional proposto pelo movimento dos trabalhadores sem-terra. A escolha deste tema deu em virtude da abordagem educacional que o MST tem mantido em suas escolas, que atribui acentuada importância à formação de jovens e crianças como militantes. Busca-se verificar de que maneira a formação militante oferecida nas fronteiras do acampamento influencia na formação das identidades. O artigo, à luz das bibliografias apresentadas, pretende problematizar o tema observando-o tanto pelo prisma de autores que defendam a chamada pedagogia do movimento, quanto por outros que detém uma posição mais crítica em relação à abordagem educacional pretendida pelo MST. Por meio deste artigo foi possível verificar a necessidade de maiores estudos e pesquisas em relação ao modelo educacional veiculado pelo MST, pois apesar de fértil o campo de pesquisas que apóiam a educação do movimento, ainda é escassa a bibliografia dedicada a analisar tal abordagem educacional

  12. Análise da condição corpórea, biometria externa e das vísceras do trato gastrointestinal de canários-da-terra, Sicalis flaveola braziliensis Analysis of body condition and external and gastrointestinal biometry of saffron finch, Sicalis flaveola braziliensis

    Directory of Open Access Journals (Sweden)

    Raul A.S. Siqueira

    2013-03-01

    Full Text Available Analisaram-se em canários-da-terra, Sicalis flaveola brasiliensis, apreendidos pelo Cetas-IBAMA/PB e que morreram logo após sua chegada, as medidas biométricas externas, condições corpóreas e de plumagem, medidas biométricas das vísceras do trato gastrointestinal (TGI, assim como a topografia visceral, a fim de fornecer dados morfológicos e caracterizar as condições em esses pássaros chegaram a esse centro de triagem. A topografia visceral estava em consonância com a de periquitos e avestruz, a exceção que essa última espécie apresenta um ceco. Verificou-se que há relação entre as condições corpóreas desfavoráveis e a perda de plumagem. Conclui-se, que S. flaveola braziliensis possui medidas biométricas em consonância á de outros Passeriformes, contudo possui divergências para aves do mesmo gênero e poucas diferenças biométricas entre machos e fêmeas. Através do estudo, verifica-se que as condições corpóreas de animais traficados devem ser consideradas nos centros de triagem, a fim de se fazer um melhor manejo nutricional e/ou clínico, diminuindo a mortalidade.Forty-one saffron finch, Sicalis flaveola brasiliensis, were studied regarding the external biometry, corporeal and plumage conditions, gastrointestinal tract (GIT biometry, and the visceral topography, in order to provide morphological data and to characterize the condition in which these birds came to the wild animal screening Center. The visceral topography was similar to the found in parakeets and ostriches; however the last have a cecum. There was also relationship between the unfavorable body conditions and the loss of feathers. It was concluded that S. flaveola braziliensis has biometric measurements similar to other Passeriformes, however with differences to birds of the same gender, and few biometric differences among males and females. The results demonstrate that the corporal conditions of trafficked animals should be considered in wild

  13. POSSIBILITY OF TERAHERTZ OBSERVATIONS AT THE ALMA SITE

    Directory of Open Access Journals (Sweden)

    S. Matsushita

    2011-01-01

    Full Text Available El porcentaje de observación con opacidades menores que 3.0 y 2.0 en frecuencias THz en el lugar del Atacama Large Millimeter/submillimeter Array (ALMA, han sido calculadas usando el monitoreo de los datos radiométricos a 225 GHz y la correlación de opacidades entre 225 GHz y el rango de frecuencias THz. Este porcentaje de observación con opacidades menores que 3.0 en frecuencias THz se da el 12.4% del año, y durante el verano austral (noviembre-abril es cerca de dos veces mayor que en invierno austral (mayo octubre. Este porcentaje de observación muestra una larga variación sinusoidal a lo largo del año, y parece estar relacionado con los fenómenos del Niño y la Niña; durante los años en los que sucede el fenómeno de la Niña el porcentaje de observación tiende a ser más alto, pero en los años en que el fenómeno del Niño se manifiesta, el porcentaje decrece. Por otro lado, el porcentaje de observación con opacidades menores que 2.0 en frecuencias THz es tan solo del 1.9% y no muestra una variación anual obvia entre las diferentes estaciones. Esto indica que las observaciones en THz bajo condiciones de baja opacidad menor que 2.0 son muy complicadas de realizar en ALMA.

  14. World-Wide Effort Bringing ALMA Telescope Into Reality

    Science.gov (United States)

    2008-02-01

    In the thin, dry air of northern Chile's Atacama Desert, at an altitude of 16,500 feet, an amazing new telescope system is taking shape, on schedule to provide the world's astronomers with unprecedented views of the origins of stars, galaxies, and planets. The Atacama Large Millimeter/submillimeter Array (ALMA) will open an entirely new "window" on the Universe, allowing scientists to unravel longstanding and important astronomical mysteries. ALMA Artist's Concept Artist's Concept of Completed ALMA CREDIT: ALMA/ESO/NRAO/NAOJ Click on image for high-resolution file (182 KB) "Most of the photons in the Universe are in the wavelength range that ALMA will receive, and ALMA will give us our first high-resolution views at these wavelengths. This will be a tremendous advancement for astronomy and open one of our science's last frontiers," Anneila Sargent, a Caltech professor and ALMA Board member, told the American Association for the Advancement of Science at its meeting in Boston, Mass. The millimeter and submillimeter wavelength range lies between what is traditionally considered radio waves and infrared waves. ALMA, a system using up to 66 high-precision dish antennas working together, will provide astronomers with dramatically greater sensitivity, the ability to detect faint objects, and resolving power, the ability to see fine detail, than has ever before been available in this range. "This ambitious project is the product of an international collaboration that spans the globe," Sargent said. "ALMA truly will enable transformational science and providing this capability has required a massive, world-wide effort," she added. The ALMA project is a partnership between Europe, Japan and North America in cooperation with the Republic of Chile. ALMA is funded in Europe by ESO, in Japan by the National Institutes of Natural Sciences in cooperation with the Academia Sinica in Taiwan and in North America by the U.S. National Science Foundation in cooperation with the

  15. Perdas de solo e água por erosão hídrica após mudança no tipo de uso da terra, em dois métodos de preparo do solo e dois tipos de adubação

    Directory of Open Access Journals (Sweden)

    Tatiane Bagatini

    2011-06-01

    Full Text Available A mudança no tipo de uso da terra, se não devidamente planejada e conduzida, poderá resultar em solos com capacidade produtiva diminuída e com propensão à erosão aumentada, o que irá diminuir o rendimento das culturas e prejudicar a conservação do solo e da água. Esta pesquisa teve como objetivo avaliar a erosão hídrica pluvial do solo em área originalmente de campo nativo, nos seus segundo e terceiro anos de cultivo com culturas anuais em fileira (respectivamente, feijão-miúdo - Vigna unguiculata - e sorgo - Sorghum bicolor, nos métodos de preparo do solo reduzido (escarificação e sem preparo (semeadura direta e nos tipos de adubação mineral (fertilizante NPK e orgânica (cama de aviário, além de uma condição sem adubação (tratamento testemunha. O estudo foi desenvolvido em campo, na EEA/UFRGS, em Eldorado do Sul (RS, nos verões de 2007/2008 e 2008/ 2009. Usou-se chuva simulada e um Argissolo Vermelho distrófico típico com textura franco-arenosa na camada superficial e declividade média de 0,13 m m- 1. Realizaram-se dois testes de erosão em cada ciclo cultural: o primeiro, logo após o preparo do solo e a semeadura das culturas; e o segundo, cerca de 90 dias mais tarde (estádio fenológico de enchimento de legumes, no caso do feijão-miúdo, e de maturação, no do sorgo. As chuvas foram aplicadas com o simulador de braços rotativos, na intensidade planejada de 64 mm h-1 e com duração de 1,5 h cada uma. Os resultados evidenciaram que a mudança no tipo de uso da terra, excluída a condição sem adubação, não ocasionou perdas relevantes de solo e água por erosão hídrica. A mobilização do solo pela escarificação, na maior parte dos casos, favoreceu a infiltração e a retenção superficial da água da chuva e, em decorrência, reduziu a enxurrada, ao mesmo tempo em que satisfatoriamente controlou a erosão. Por sua vez, a ausência de mobilização do solo na semeadura direta, também na maior parte

  16. CURA MÉDICA DE ALMAS (CMA

    Directory of Open Access Journals (Sweden)

    Ancisar Restrepo Toro

    2001-01-01

    Full Text Available La «Cura médica de almas» tiene como objetivo señalar otra zona de aplicación de la Logoterapia, el acercamiento al hombre que sufre, al homo patiens, pero no ya a su sufrimiento en sí mismo sino a su humanidad. Si la Logoterapia, en su sentido más estricto, es la terapia indicada para las neurosis noógenas o en otros casos es complementaria de las psicoterapias, en el caso de la «Cura médica de almas» ya no es intervención terapéutica sino, específicamente, ejercicio de la humanidad del terapeuta en contacto con la humanidad de su paciente.

  17. ALMA (Atacama Large Millimetre/ Submillimetre Array)

    OpenAIRE

    Barcons, Xavier

    2010-01-01

    ALMA is a large sub/millimetre observatory in construction phase (Atacama desert, Chile). When finished it will be the world’s largest interferometer for millimetre and submillimetre wavelengths. Three sites: 1)Array Operations Site (AOS), llano de Chajnantor (5100 m). 2)Operations Support Facility (OSF), near San Pedro de Atacama (2900m). 3)Santiago Central Office (SCO). First large ground-based “global” scientific infrastructure.

  18. Prospects for Asymmetric PNe with ALMA

    CERN Document Server

    Huggins, P J

    2010-01-01

    Millimeter and sub-millimeter observations have made fundamental contributions to our current understanding of the transition from AGB stars to white dwarfs. The approaching era of ALMA brings significantly enhanced observing capabilities at these wavelengths and promises to push back the frontiers in a number of ways. We examine the scientific prospects of this new era for PNe, with an emphasis on how developments may contribute to the goals of the asymmetric PNe community.

  19. Performance highlights of the ALMA correlators

    Science.gov (United States)

    Baudry, Alain; Lacasse, Richard; Escoffier, Ray; Webber, John; Greenberg, Joseph; Platt, Laurence; Treacy, Robert; Saez, Alejandro F.; Cais, Philippe; Comoretto, Giovanni; Quertier, Benjamin; Okumura, Sachiko K.; Kamazaki, Takeshi; Chikada, Yoshihiro; Watanabe, Manabu; Okuda, Takeshi; Kurono, Yasutake; Iguchi, Satoru

    2012-09-01

    Two large correlators have been constructed to combine the signals captured by the ALMA antennas deployed on the Atacama Desert in Chile at an elevation of 5050 meters. The Baseline correlator was fabricated by a NRAO/European team to process up to 64 antennas for 16 GHz bandwidth in two polarizations and another correlator, the Atacama Compact Array (ACA) correlator, was fabricated by a Japanese team to process up to 16 antennas. Both correlators meet the same specifications except for the number of processed antennas. The main architectural differences between these two large machines will be underlined. Selected features of the Baseline and ACA correlators as well as the main technical challenges met by the designers will be briefly discussed. The Baseline correlator is the largest correlator ever built for radio astronomy. Its digital hybrid architecture provides a wide variety of observing modes including the ability to divide each input baseband into 32 frequency-mobile sub-bands for high spectral resolution and to be operated as a conventional 'lag' correlator for high time resolution. The various observing modes offered by the ALMA correlators to the science community for 'Early Science' are presented, as well as future observing modes. Coherently phasing the array to provide VLBI maps of extremely compact sources is another feature of the ALMA correlators. Finally, the status and availability of these large machines will be presented.

  20. Exploring Supermassive Black Hole Growth with ALMA

    CERN Document Server

    Kawakatu, N; Granato, G L; Danese, L; Kawakatu, Nozomu; Andreani, Paola; Granato, Gian Luigi; Danese, Luigi

    2007-01-01

    Massive tori with $\\approx 10^{8-9}M_{\\odot}$ are predicted to extend on $\\sim $100 pc scale around the centre of elliptical galaxy progenitors by a model of a supermassive black hole (SMBH) growth coeval to the spheroidal population of the host galaxy. Direct detection of such massive tori would cast light on a key physical condition that allows the rapid growth of SMBHs and the appearance of QSOs at high redshift. For this reason, we examine the detectability of such structures at substantial redshift with the Atacama Large Millimeter Array (ALMA). We propose that submillimeter galaxies (SMGs) are the best targets to test our predictions. In order to assess the observational feasibility, we estimate the expected number counts of SMGs with massive tori and check the detectability with the ALMA instrument, the unique facility which can resolve the central region of high redshift objects. Our work shows that ALMA will be able to resolve and detect high-$J$ ($J >$ 4) CO emissions from $\\sim$100 pc scale extende...

  1. The Atacama Large Millimeter Array (ALMA)

    Science.gov (United States)

    1999-06-01

    The Atacama Large Millimeter Array (ALMA) is the new name [2] for a giant millimeter-wavelength telescope project. As described in the accompanying joint press release by ESO and the U.S. National Science Foundation , the present design and development phase is now a Europe-U.S. collaboration, and may soon include Japan. ALMA may become the largest ground-based astronomy project of the next decade after VLT/VLTI, and one of the major new facilities for world astronomy. ALMA will make it possible to study the origins of galaxies, stars and planets. As presently envisaged, ALMA will be comprised of up to 64 12-meter diameter antennas distributed over an area 10 km across. ESO PR Photo 24a/99 shows an artist's concept of a portion of the array in a compact configuration. ESO PR Video Clip 03/99 illustrates how all the antennas will move in unison to point to a single astronomical object and follow it as it traverses the sky. In this way the combined telescope will produce astronomical images of great sharpness and sensitivity [3]. An exceptional site For such observations to be possible the atmosphere above the telescope must be transparent at millimeter and submillimeter wavelengths. This requires a site that is high and dry, and a high plateau in the Atacama desert of Chile, probably the world's driest, is ideal - the next best thing to outer space for these observations. ESO PR Photo 24b/99 shows the location of the chosen site at Chajnantor, at 5000 meters altitude and 60 kilometers east of the village of San Pedro de Atacama, as seen from the Space Shuttle during a servicing mission of the Hubble Space Telescope. ESO PR Photo 24c/99 and ESO PR Photo 24d/99 show a satellite image of the immediate vicinity and the site marked on a map of northern Chile. ALMA will be the highest continuously operated observatory in the world. The stark nature of this extreme site is well illustrated by the panoramic view in ESO PR Photo 24e/99. High sensitivity and sharp images ALMA

  2. Uso, ocupação das terras e banco de dados geográficos da metade sul do Rio Grande do Sul Land use and occupation and geographical data base of the half south of the Rio Grande do Sul state

    Directory of Open Access Journals (Sweden)

    Édson Luis Bolfe

    2009-09-01

    Full Text Available Banco de dados geográficos constitui-se em uma referência importante para o planejamento territorial, principalmente quando as informações regionais disponíveis são muito restritas. Os objetivos deste estudo foram quantificar e avaliar o uso e a ocupação das terras de 35 municípios do sul do Rio Grande do Sul. Instrumentais envolvendo geoprocessamento e sensoriamento remoto foram utilizados para classificar digitalmente imagens do satélite Landsat. Foi elaborado um banco de dados geográficos com informações referentes às classes de uso e à ocupação das terras (pastagem natural e cultivada, floresta natural, reflorestamento, banhado e alagadiço, dunas e areia; lâmina d'água; agricultura/solo exposto e área urbana. Os dados foram analisados por município e integrados na forma de instrumentos públicos de gestão territorial (Conselho Regional de Desenvolvimento da Região Sul, Associação dos Municípios da Zona Sul e Bacia Hidrográfica da Lagoa Mirim. Pastagens e agricultura foram as classes mais expressivas e corresponderam a 83% dos valores médios dos municípios. As demais classes não ultrapassaram 5% de ocupação. A análise espacial dos dados e as informações geradas possibilitam a compreensão da dinâmica ocupacional e permitem subsidiar a ordenação do espaço geográfico e o desenvolvimento sustentável da região.Geographical data base consist in an important reference for the territorial planning, mainly when the available regional information are restricted. This study objectified to quantify and evaluate the land use and occupation of 35 municipalities of the South of the Rio Grande do Sul state. Remote Sensing and Geoprocessing techniques were utilized to classify digital image of the Landsat satellite. Geographical data base were elaborated with concerning information the classes of use and land occupation (natural and cultivated pastures, natural forest, reforestation, swampy and drenched, dunes and

  3. Imagem e movimento: o modo visual na construção da identidade do sem-terra Image and movement: the visual mode in the identity construction of landless workers

    Directory of Open Access Journals (Sweden)

    Vanderlei J. Zacchi

    2009-01-01

    Full Text Available Estudos sobre os multiletramentos têm chamado a atenção para a crescente importância de habilidades não-verbais no processo de aprendizagem e de construção de identidade, principalmente com o advento das novas tecnologias de comunicação. As habilidades, ou modos de produção de significado, mais importantes são cinco: visual, auditiva, gestual, espacial e multimodal. O objetivo deste trabalho é analisar o visual como modo de produção de significado e sua relação com o modo linguístico nas mídias do MST. Embora o movimento coloque grande ênfase no verbal, o trabalho com imagens pode ser visto também como fonte de empoderamento e construção de identidade do sem-terra.Studies on multiliteracies have been placing great emphasis on nonverbal skills in learning and in identity construction, especially with the rise of new technologies of communication. The most significant skills, or modes of meaning-making, are five: the visual, the audio, the spatial, the gestural and the multimodal. This paper aims at analysing the visual as a mode of meaning-making and its interaction with the linguistic mode in the MST's electronic and print media. Although the landless movement places great emphasis on the written-textual mode, it has been highly skilful in dealing with images in ways which contribute to the empowerment and identity construction of the landless.

  4. Evolução e mapeamento do uso da terra, através de imagens aerofotogramétricas e orbitais em Santa Bárbara D'Oeste (SP Land use mapping and evolution through aerial photographs and orbital images, in Santa Bárbara D'Oeste (SP

    Directory of Open Access Journals (Sweden)

    M.H. Borges

    1993-12-01

    Full Text Available Em Santa Bárbara D'Oeste,SP, foram realizados dois mapeamentos do uso da terra em área de 14.625 ha. No primeiro utilizou-se fotografias aéreas verticais pancromáticas (data de 25/6/78, na escala 1:35.000, e no segundo utilizou-se imagens orbitais do satélite LANDSAT-5 com sensor "Thematic Mapper" (data de 12/8/91, escala 1: 100.000, nas bandas 3, 4 e 5 e composição colorida 3/4/5. Para auxiliar a confecção desses mapas, obteve-se chaves de interpretação, tanto para as aerofotos como para as imagens orbitais. As fotografias aéreas proporcionaram um maior nível de detalhamento na identificação do uso da terra. A banda 3 e a composição colorida 3/4/5 foram as mais eficientes entre as imagens orbitais. Entre 1978 e 1991, a área de ocorrência de cana-de-açúcar permaneceu a mesma, as áreas de mata e pastagem diminuíram, enquanto que as áreas de reflorestamento e urbana aumentaram. Essa região teve sua capacidade de uso enquadrada, na maior parte, na classe IV: terras mais apropriadas para pastagens ou plantas perenes como a cana-de-açúcar, devendo-se aplicar técnicas intensivas de conservação, e com aptidão baseada em práticas agrícolas que refletem um alto nível tecnológico.Land use was studied in Santa Bárbara D'Oeste,SP in an area of 14,625 ha. Two land use mappings were made using pancromatic aerial photographs (date 25/6/78, in a scale of 1:35,000 and orbital images from LANDSAT-5 satellite (date 12/8/91 in a scale 1:100,000, at bands 3, 4 and 5 and color composition 3/4/5. Interpretation keys for aerial photos and orbital images were established to assist map making. For land use identification photos presented more details. On the other hand, orbital images at band 3 and color composition 3/4/5 were more efficient in relation to the other bands. Sugar cane crop area did not change in the studied period (1978-1991, forest and pasture areas had a reduction and urban areas increased. Using the land capability

  5. Inventário de Exemplares das Coleções de Paleovertebrados do Museu Nacional/UFRJ e do Museu de Ciências da Terra/DNPM Submetidos às Técnicas de Análise Digital.

    Directory of Open Access Journals (Sweden)

    Caroline Rehem

    2007-07-01

    Full Text Available Desde meados da década de 1990, fósseis da coleção do Setor de Paleovertebrados do Museu Nacional vêm sendo sistematicamente digitalizados com o intuito de criar uma base de dados virtual doacervo. Devido a importância da utilização desta técnica nas pesquisas recentes, exemplares depositados no Museu de Ciências da Terra do DepartamentoNacional da Produção Mineral (MCTer/DNPMvêm sendo, também, submetidos a esta análise. Dentre os métodos utilizados pela equipe do Setor de Paleovertebrados que permitem a obtenção, edição e criação de arquivos tridimensionais (3D estão aTomografia Computadorizada (TC, o Escaneamento 3D, a Modelagem 3D e mais recentemente a Fotogrametria. A maior parte dos exemplaresfoi digitalizada por meio de TC. Os exemplares submetidos a esta técnica foram Bauruemys elegans Suárez, 1969 (MN 4322-V, MN 6674-V, MN 6761- , MN 6787-V, MN 6790-V, MN 6801-V, MN 6802-V, MN 6803-V, MN 6804-V, MN 6805-V, MN 6806-V, MN 6808-V, além de dois blocos não tombados;Araripemys barretoi Price, 1973 (MN 6946-V;Mariliasuchus sp. (MN 6756-V e MN 6298-V;Stratiotosuchus maxhechti Campos, Suárez, Riff& Kellner, 2001 (DGM 1486-R, holótipo; e umMesosuquídeo não-identificado (DGM 1486-R.Utilizando-se de Escaneamento 3D foi digitalizada a réplica do holótipo de Staurikosaurus pricei Colbert,1970 (MN 6104-V sendo o resto de seu esqueletomodelado tridimensionalmente em ambiente digital.Através de fotogrametria foram digitalizados exemplares de Bauruemys elegans (MN 4322-V,MN 6782-V e MN 6674-V. A digitalização dos exemplares supracitados foi realizada com intuito de auxiliar os pesquisadores em seus trabalhos, gerando m banco de imagens bi e tridimensionais que será disponibilizado via internet. O acesso a alguns destesarquivos, bem como a ampliação desta base de dados,auxiliará estudos futuros, incluindo dissertações,teses e projetos de extensão universitária que seencontram em desenvolvimento.

  6. Efeitos das mudanças do uso da terra na biogeoquímica dos corpos d'água da bacia do rio Ji-Paraná, Rondônia Effects of land use changes in the biogeochemistry of fluvial systems of the Ji-Paraná river basin, Rondônia

    Directory of Open Access Journals (Sweden)

    Alex Vladimir Krusche

    2005-06-01

    Full Text Available Este trabalho discute os efeitos das mudanças do uso do solo na biogequímica dos rios da bacia de drenagem do rio Ji-Paraná (Rondônia. Nesta região, a distribuição espacial do desmatamento e das propriedades do solo resultam em sinais diferentes, possibilitando a divisão dos sistemas fluviais em três grupos: rios com águas pobres em íons e baixo impacto; rios com conteúdo iônico intermediário e impacto médio e rios com elevados conteúdo iônico e impacto antropogênico. As características biogeoquímicas dos rios têm relação significativa com a área de pasto, melhor parâmetro para prever a condutividade elétrica (r² = 0,87 e as concentrações de sódio (r² = 0,75, cloreto (r² = 0,69, potássio (r² = 0,63, fosfato (r² = 0.78, nitrogênio inorgânico (r² = 0.52, carbono inorgânico (r² = 0.81 e carbono orgânico (rain ² = 0.51 dissolvidos. Cálcio e magnésio tiveram sua variância explicada pelas características do solo e pastagem. Nossos resultados indicam que as mudanças observadas na micro-escala constituem "sinais biogeoquímicos" gerados pelo processamento do material nas margens dos rios. A medida em que os rios evoluem para ordens superiores, os sinais persistentes nos canais fluviais estão mais associdados às características da bacia de drenagem (solos e uso da terra. Apesar dos efeitos das mudanças observadas no uso do solo não serem ainda detectáveis na macro-escala (bacia amazônica, a disrupção da estrutura e funcionamento dos ecossistemas é detectável nas micro e meso escalas, com alterações significativas na ciclagem de nutrientes nos ecossistemas fluviais.In this article we present the results of the effects of land use change on the river biogeochemistry of the Ji-Paraná basin (Rondônia. In this region, the spatial distribution of deforestation and soil properties result in different biogeochemical signals, allowing the division of the fluvial systems into three groups: rivers with

  7. Italian Science Case for ALMA Band 2+3

    CERN Document Server

    Beltran, M T; Brand, J; Casasola, V; Cesaroni, R; Codella, C; Fontani, F; Gregorini, L; Guidi, G; Hunt, L; Liuzzo, E; Marconi, A; Massardi, M; Moscadelli, L; Paladini, R; Podio, L; Prandoni, I; Rygl, K L J; Rivilla, V; .,; Testi, L

    2015-01-01

    The Premiale Project "Science and Technology in Italy for the upgraded ALMA Observatory - iALMA" has the goal of strengthening the scientific, technological and industrial Italian contribution to the Atacama Large Millimeter/submillimeter Array (ALMA), the largest ground based international infrastructure for the study of the Universe in the microwave. One of the main objectives of the Science Working Group (SWG) inside iALMA, the Work Package 1, is to develop the Italian contribution to the Science Case for the ALMA Band 2 or Band 2+3 receiver. ALMA Band 2 receiver spans from ~67 GHz (bounded by an opaque line complex of ozone lines) up to 90 GHz which overlaps with the lower frequency end of ALMA Band 3. Receiver technology has advanced since the original definition of the ALMA frequency bands. It is now feasible to produce a single receiver which could cover the whole frequency range from 67 GHz to 116 GHz, encompassing Band 2 and Band 3 in a single receiver cartridge, a so called Band 2+3 system. In addit...

  8. NRAO Welcomes Taiwan as a New North American ALMA Partner

    Science.gov (United States)

    2008-12-01

    The National Radio Astronomy Observatory (NRAO) has announced a formal agreement enabling Taiwanese astronomers to participate in the North American component of the international ALMA partnership, alongside American and Canadian astronomers. Taiwan's efforts will be led by the Academia Sinica Institute of Astronomy and Astrophysics (ASIAA). ALMA, the Atacama Large Millimeter/submillimeter Array, is the most ambitious ground-based astronomical observatory in history. Currently under construction in Chile’s Atacama Desert at an altitude of 16,500 feet, it promises to revolutionize our understanding of the formation of planets, stars, and galaxies when it begins full science operations early in the next decade. The agreement, signed by the Taipei Economic and Cultural Representative Office and the American Institute in Taiwan, provides for approximately $20 million in ALMA construction funding through the National Science Council (NSC), Taiwan’s equivalent to the US National Science Foundation (NSF) and Canada's National Research Council (NRC), which have jointly funded North America's existing contribution to the international ALMA project. Activities under the agreement will include joint research projects, development projects, collaboration on construction, support of observatory operations and other forms of cooperation. Access to ALMA observing time will be shared, as will membership on advisory committees. “Taiwan is a world-class center for submillimeter-wavelength astronomical research, and we’re delighted that the ALMA project and all its future users will benefit from the resources and expertise that Taiwan’s deepening participation brings to this great, global endeavor,” said Dr. Fred Lo, NRAO's director. This new agreement increases and diversifies Taiwan’s Academia Sinica investment in ALMA beyond the levels achieved through its participation in the East Asian component of the ALMA partnership, which is led by the National Astronomical

  9. Biografias e movimentos de luta por terra em Pernambuco Biographies and land claim movements in Pernambuco

    Directory of Open Access Journals (Sweden)

    Marcelo C. Rosa

    2009-01-01

    Full Text Available Este artigo analisa a contribuição das chamadas "lutas por terra" para a produção de novas formas de significação social na região da Zona da Mata de Pernambuco. Por meio da análise de entrevistas com militantes dos diversos movimentos que organizam ocupações de terra na região, foi possível compreender que, além da posse de um pedaço de terra, tais organizações criam condições inéditas para a transformação dos seus líderes em figuras de destaque nas instâncias políticas dos pequenos municípios da região, contribuindo assim para a modificação das estruturas tradicionais de poder.This paper analyzes the contribution of so-called 'land struggles' in the creation of new forms of 'social meaning' in a sugar plantation region of the Brazilian Northeast. Analysis of interviews with militants from various movements coordinating land occupations in the region reveals that, as well as supporting rural people's access to land, these organizations enable their leaders to become prominent figures in local urban politics, thereby contributing to the modification of traditional power structures.

  10. Identificação de conflito de uso da terra em áreas de preservação permanente no entorno do parque nacional do Caparaó, Estado de Minas Gerais Identification of land use conflicts in permanent preservation áreas in the surroundings of the Caparaó national park, Minas Gerais State, Brazil

    Directory of Open Access Journals (Sweden)

    Fernando Soares de Oliveira

    2008-10-01

    Full Text Available Este estudo teve como objetivos elaborar um mapa de uso da terra com base nas imagens do satélite IKONOS II, delimitar de maneira automática as áreas de preservação permanente e identificar a ocorrência de conflitos de usos, tendo como referência legal o Código florestal e a Resolução n.º 303 do CONAMA. A pesquisa foi desenvolvida na entorno do Parque Nacional do Caparaó, pertencente aos municípios de Alto Jequitibá, Alto Caparaó, Caparaó e Espera Feliz, todos situados no estado de Minas Gerais. Utilizando os recursos disponíveis no geoprocessamento, foi possível mapear 8 classes de uso da terra e delimitar as áreas de preservação permanente situadas em áreas com altitudes superior a 1.800 metros (8,42 ha, no terço superior dos morros (18,67 ha; encostas com declividade superior a 45 graus (92,96 ha; nascentes e suas respectivas áreas de contribuição (1.989,44 ha; margens dos cursos d´água com largura inferior a 10 metros (3.957,19 ha; e no terço superior das sub-bacias (6.031,54 ha, perfazendo um total de 12.098,22 ha (48,06% da área total da bacia. A área de uso indevido correspondeu a 8.922,91 ha (73,75%, sendo as classes cafezal (5.183,43 ha e pastagem (3.650,74 ha as principais ocorrências nessas áreas. Apenas 2.160,69 ha (18,40% das áreas de preservação permanente estão protegidas por vegetação nativa.The objective of this work was to prepare a map of land use based on the IKONOS II sattelite images, to automatically determine the permanent preservation areas and to identify the occurrence of use conflicts, using as legal reference the Forest Code and the nº 303 Resolution of the CONAMA. The research was developed around the Caparaó National Park, in lands of the municipalities of Alto Jequitibá, Alto Caparaó, Caparaó and Espera Feliz, all of them located in the State of Minas Gerais. Using the resources available in the geographic processing, it was possible to map 8 classes of land use and to

  11. Análise de associação quanto à produtividade e seus caracteres componentes em linhagens e cultivares de arroz de terras altas

    OpenAIRE

    2014-01-01

    O objetivo deste trabalho foi identificar, por meio da análise de mapeamento associativo, os marcadores moleculares relacionados à produtividade do arroz de terras altas e aos seus caracteres componentes. Foram usadas 113 linhagens e cultivares de arroz de terras altas, da Coleção Nuclear de Arroz da Embrapa, com reduzido vínculo genético entre si. Os seguintes caracteres componentes da produtividade foram avaliados: número de panículas por metro, número de grãos por panícula e peso de 100 gr...

  12. ALMA Nutator Design and Preliminary Performance

    OpenAIRE

    Martin-Cocher, Pierre; Ford, John; Koch, Patrick M.; Ni, Chih-Wen; Chen, Wei-Long; Chen, Ming-Tang; Raffin, Philippe; Ong, Chin-Long; Ho, Paul T. P.; Symmes, Arthur

    2013-01-01

    We report the past two years of collaboration between the di?erent actors on the ALMA nutator. Building on previous developments, the nutator has seen changes in much of the design. A high-modulus carbon ?fiber structure has been added on the back of the mirror in order to transfer the voice coils forces with less deformation, thus reducing delay problems due to flexing. The controller is now an off?-the-shelf National Instrument NI-cRIO, and the ampli?fier a class D servo drive from Advanced...

  13. Studies of Dense Cores with ALMA

    OpenAIRE

    Tafalla, M.

    2007-01-01

    Dense cores are the simplest star-forming sites that we know, but despite their simplicity, they still hold a number of mysteries that limit our understanding of how solar-type stars form. ALMA promises to revolutionize our knowledge of every stage in the life of a core, from the pre-stellar phase to the final disruption by the newly born star. This contribution presents a brief review of the evolution of dense cores and illustrates particular questions that will greatly benefit from the incr...

  14. Razão de perdas de terra e fator C da cultura do cafeeiro em cinco espaçamentos, em Pindorama (SP Soil loss ratio and C factor for coffee plantations in five spacings in Pindorama, State of São Paulo, Brazil

    Directory of Open Access Journals (Sweden)

    Daniel Prochnow

    2005-02-01

    Full Text Available hídrica em culturas perenes, embora tais dados sejam imprescindíveis ao planejamento conservacionista e estudos de modelagem de erosão. Dados de um experimento de perdas de terra e água sob chuva natural em Pindorama (SP, de julho de 1960 a junho de 1972, foram usados para o cálculo da razão de perdas de terra (RPT e do fator C da equação universal de perdas de solo, em cinco espaçamentos na cultura do cafeeiro (Coffea arabica L.. Foram estabelecidas parcelas com espaçamentos de 3,0 x 0,5 m, 3,0 x 1,0 m, 3,0 x 2,0 m, 3,0 x 3,0 m e 4,0 x 2,0 m em um Argissolo Vermelho-Amarelo eutrófico textura arenosa/média com declividade média de 0,100 m m-1. O ciclo da cultura foi dividido em dois estádios: do plantio aos 60 meses e dos 60 aos 144 meses. Os resultados mostraram que: (a as perdas anuais de terra e água para a cultura do cafeeiro foram de 4 Mg ha-1 e 18 mm respectivamente; (b os valores de RPT para o cafeeiro foram de 0,1346, 0,0883, 0,1015, 0,1422 e 0,1001 Mg ha-1 Mg-1 ha, para os espaçamentos 3,0 x 0,5 m, 3,0 x 1,0 m, 3,0 x 2,0 m, 3,0 x 3,0 m e 4,0 x 2,0 m respectivamente; (c a magnitude do fator C, para os referidos espaçamentos, foi, respectivamente, de 0,1354, 0,0866, 0,0995, 0,1412 e 0,1004 Mg ha-1 Mg-1 ha; (d as RPTs e os fatores C variaram amplamente entre os espaçamentos, bem como e, mais expressivamente, entre os estádios da cultura, indicando forte efeito do espaçamento e da cobertura vegetal; (e o espaçamento 3,0 x 1,0 mostrou-se mais eficiente na redução da erosão hídrica na cultura do cafeeiro.Brazilian literature lacks data on soil and water loss by water erosion in perennial crops although such data would be essential for conservation planning and erosion modeling studies. Data of soil and water loss under natural rainfall (July 1960 to June 1972 in Pindorama, State of São Paulo, Brazil, were used to calculate the soil loss ratio (SLR and C factor for the Universal Soil Loss Equation (USLE in coffee

  15. Impacto do uso e ocupação da terra na qualidade da água da bacia hidrográfica do rio Nhapindazal, Irati (PR) / Impact of land use and occupation on the water quality of Nhapindazal river watershed, Irati, (PR)

    OpenAIRE

    Augusto Tomazzoni Lubenow; Paulo Costa de Oliveira Filho; Carlos Magno de Sousa Vidal; Grasiele Soares Cavallini; Yuren Caldeira Canterle

    2012-01-01

    ResumoO objetivo desta pesquisa foi elaborar o mapa de uso e ocupação da bacia do rio Nhapindazal por meio de técnicas de processamento e classificação digital de imagens orbitais e buscar relações com as análises de qualidade da água obtidas em duas campanhas em diferentes locais da bacia, identificando-se os agentes poluidores. Foram utilizadas imagens de cinco metros de resolução espacial e o processo de classificação por regiões considerando dois parâmetros para classificação de imagens: ...

  16. ALMA Achieves Major Milestone With Antenna-Link Success

    Science.gov (United States)

    2007-03-01

    The Atacama Large Millimeter/submillimeter Array (ALMA), an international telescope project, reached a major milestone on March 2, when two ALMA prototype antennas were first linked together as an integrated system to observe an astronomical object. The milestone achievement, technically termed "First Fringes," came at the ALMA Test Facility (ATF) on the grounds of the National Radio Astronomy Observatory's (NRAO) Very Large Array (VLA) radio telescope in New Mexico. NRAO is a facility of the National Science Foundation (NSF), managed by Associated Universities, Incorporated (AUI). AUI also is designated by NSF as the North American Executive for ALMA. ALMA Test Facility ALMA Test Facility, New Mexico: VertexRSI antenna, left; AEC antenna, right. CREDIT: Drew Medlin, NRAO/AUI/NSF Click on image for page of graphics and full information Faint radio waves emitted by the planet Saturn were collected by the two ALMA antennas, then processed by new, state-of-the-art electronics to turn the two antennas into a single, high-resolution telescope system, called an interferometer. Such pairs of antennas are the basic building blocks of multi-antenna imaging systems such as ALMA and the VLA. In such a system, each antenna is combined electronically with every other antenna to form a multitude of pairs. Each pair contributes unique information that is used to build a highly-detailed image of the astronomical object under observation. When completed in 2012, ALMA will have 66 antennas. The successful Saturn observation began at 7:13 p.m., U.S. Mountain Time Friday (0213 UTC Saturday). The planet's radio emissions at a frequency of 104 GigaHertz (GHz) were tracked by the ALMA system for more than an hour. "Our congratulations go to the dedicated team of scientists, engineers and technicians who produced this groundbreaking achievement for ALMA. Much hard work and many long hours went into this effort, and we appreciate it all. This team should be very proud today," said NRAO

  17. Efeitos da distância entre iscas nas estimativas de abundância e riqueza de formigas em uma floresta de terra-firme na Amazônia Central Effects of bait spacing on ant abundance and richness in one forest at Central Amazonia

    Directory of Open Access Journals (Sweden)

    Fabricio Beggiato Baccaro

    2011-03-01

    Full Text Available Coletas com iscas são amplamente utilizadas para investigar a atividade de formigas de solo e vegetação e também podem ser empregadas para estimar o número de espécies e a abundância de formigas. Apesar de ser barata e fácil de implementar, a riqueza e abundância das formigas estimadas por iscas podem ser enviesadas por alguns fatores, como a distância entre iscas. Neste trabalho, avaliamos se a distância entre iscas altera as estimativas de abundância e riqueza de formigas e qual distância entre iscas resulta na melhor relação entre custo financeiro e número de espécies amostradas, objetivo da maioria dos relatórios de impacto ambiental. Amostramos 30 transectos de 100 m com distância entre iscas diferentes (2,5; 3,4; 5; 6,7; 10 e 20 m, distribuídos em uma área de 1 km² em uma floresta de terra-firme ao norte de Manaus. Independente da distância entre iscas, o número de espécies coletado a cada cinco iscas, foi aproximadamente 8, e a abundância média foi maior que 50 indivíduos. No entanto o número de espécies por isca foi maior em transectos com maior distância entre iscas. Transectos com distância entre iscas de 10 e 20 m, coletaram 50% mais espécies por isca que transectos com iscas distantes a 2,5 e 3,4 m entre si. Nossos resultados sugerem que nesta área, a amostragem mais eficiente desse método de coleta seria distribuir 450 iscas a cada 10 m ou 20 m no solo da floresta.Baits are widely used to investigate the activity of terrestrial and arboreal ants, but also can be used to estimate the ant abundance and species richness. Despite the fact that baiting are cheap and easy to implement, many factors, such as the distance between baits, may influence the estimate of ant species richness and abundance. In this study, we evaluated the effects of bait spacing on abundance and the number of ant species. We also demonstrate which distance between baits showed the best relationship between costs and number of

  18. ALMA Observations of the Orion Proplyds

    CERN Document Server

    Mann, Rita K; Johnstone, Doug; Andrews, Sean M; Williams, Jonathan P; Bally, John; Ricci, Luca; Hughes, A Meredith; Matthews, Brenda C

    2014-01-01

    We present ALMA observations of protoplanetary disks ("proplyds") in the Orion Nebula Cluster. We imaged 5 individual fields at 856um containing 22 HST-identified proplyds and detected 21 of them. Eight of those disks were detected for the first time at submillimeter wavelengths, including the most prominent, well-known proplyd in the entire Orion Nebula, 114-426. Thermal dust emission in excess of any free-free component was measured in all but one of the detected disks, and ranged between 1-163 mJy, with resulting disk masses of 0.3-79 Mjup. An additional 26 stars with no prior evidence of associated disks in HST observations were also imaged within the 5 fields, but only 2 were detected. The disk mass upper limits for the undetected targets, which include OB stars, theta1Ori C and theta1Ori F, range from 0.1-0.6 Mjup. Combining these ALMA data with previous SMA observations, we find a lack of massive (>3 Mjup) disks in the extreme-UV dominated region of Orion, within 0.03 pc of O-star theta1Ori C. At large...

  19. PWV FORECAST VALIDATION AT ALMA SITE

    Directory of Open Access Journals (Sweden)

    D. Pozo

    2011-01-01

    Full Text Available En este estudio se implementó el modelo WRF (Weather Research and Forecasting y se evaluó su sensibilidad con el fin de pronosticar las condiciones atmosféricas, principalmente el vapor de agua precipitable (en inglés, PWV en el sitio de ALMA (Atacama Large Millimeter/Submillimeter Array. Se evaluaron 5 configuraciones del WRF con diferentes opciones físicas de capa límite, de modelo de suelo y microfísica, que fueron comparadas con datos observados de radiómetro y estación meteorológica, entre abril y diciembre de 2007. Los resultados mostraron que todas las simulaciones sobrestiman los valores de PWV, particularmente en los meses de verano. Además, los cambios de parametrización de microfísica no influyen significativamente en el pronóstico, observándose mejores resultados con el modelo de suelo Noah. Los menores errores fueron obtenidos con la configuración YSU-Noah, sugiriendo ser apropiada para usarse en el pronóstico operativo de PWV en ALMA.

  20. ALMA Nutator Design and Preliminary Performance

    CERN Document Server

    Martin-Cocher, Pierre; Koch, Patrick M; Ni, Chih-Wen; Chen, Wei-Long; Chen, Ming-Tang; Raffin, Philippe; Ong, Chin-Long; Ho, Paul T P; Symmes, Arthur

    2013-01-01

    We report the past two years of collaboration between the di?erent actors on the ALMA nutator. Building on previous developments, the nutator has seen changes in much of the design. A high-modulus carbon ?fiber structure has been added on the back of the mirror in order to transfer the voice coils forces with less deformation, thus reducing delay problems due to flexing. The controller is now an off?-the-shelf National Instrument NI-cRIO, and the ampli?fier a class D servo drive from Advanced Motion Controls, with high peak power able to drive the coils at 300 Volts DC. The stow mechanism has been totally redesigned to improve on the repeatability and precision of the stow position, which is also the reference for the 26 bits Heidenhain encoders. This also improves on the accuracy of the stow position with wind loading. Finally, the software, written largely with National Instrument's LabView, has been developed. We will discuss these changes and the preliminary performances achieved to date. Keywords: ALMA, ...

  1. Religiosidade Popular e Inquisição em Terras de Basto

    OpenAIRE

    Pedro Vilas Boas Tavares

    2014-01-01

    Com recurso a estudos conhecidos e fontes agora disponíveis, fazseuma preliminar sondagem aos impactos recenseáveis da ação do Santo Ofício em terras de Basto, com particular incidência nas manifestações da religiosidade popular mariana, centradas na secular ermida de Nossa Senhora da Graça. Using known studies and sources now available, it is here donea preliminary survey to recenseáveis impacts of the Holy Office action in Basto lands, with particular focus on manifestations of Marian po...

  2. Impacto do uso e ocupação da terra na qualidade da água da bacia hidrográfica do rio Nhapindazal, Irati (PR / Impact of land use and occupation on the water quality of Nhapindazal river watershed, Irati, (PR

    Directory of Open Access Journals (Sweden)

    Augusto Tomazzoni Lubenow

    2012-12-01

    Full Text Available ResumoO objetivo desta pesquisa foi elaborar o mapa de uso e ocupação da bacia do rio Nhapindazal por meio de técnicas de processamento e classificação digital de imagens orbitais e buscar relações com as análises de qualidade da água obtidas em duas campanhas em diferentes locais da bacia, identificando-se os agentes poluidores. Foram utilizadas imagens de cinco metros de resolução espacial e o processo de classificação por regiões considerando dois parâmetros para classificação de imagens: limiar de similaridade e área mínima. Foram realizadas duas campanhas de coleta de água para análise em oito pontos estratégicos da bacia, sendo que em cada amostra coletada foi caracterizada para os seguintes parâmetros: pH, turbidez, fósforo total, Demanda Bioqu��mica de Oxigênio (DBO, Oxigênio Dissolvido (OD, Sólidos Totais (ST, Sólidos Suspensos Totais (SST, Sólidos Dissolvidos Totais (SDT, coliformes totais e Escherichia coli. Os resultados demonstraram que alterações observadas nos valores dos parâmetros de qualidade da água possuem em alguns locais, relação com as acentuadas modificações do uso e ocupação da bacia nos últimos anos. Abstract The objective of this research was to draw a map of use and occupation of the Nhapindazal River Basin, through processing techniques and digital classification of satellite images. The study also aimed at seeking for correlations between the images and the analysis of water quality obtained during two campaigns in different areas of the basin, identifying the pollutants. The images used were of 5 meters spatial resolution, and the process of classification by regions considered two parameters for image classification: similarity threshold and minimum area. Two campaigns were conducted to collect water for analysis in eight strategic points of the basin, and each collected sample was characterized in relation to the following parameters: pH, turbidity, total phosphorus

  3. A importância das áreas ripárias para a sustentabilidade hidrológica do uso da terra em microbacias hidrográficas The importance of the riparian areas for hydrologic sustainability of the land use in watersheds

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    Cláudia Mira Attanasio

    2012-01-01

    Full Text Available Zonas ripárias são áreas de saturação hídrica, permanente ou temporária, cuja principal função é a proteção dos recursos hídricos de uma microbacia. Essa pesquisa comparou a adequação do uso do solo de dois cenários de planejamento agrícola de uma microbacia: o cenário convencional, representando o método usualmente empregado, que apenas considera as classes de capacidade de uso da terra, e o cenário hidrológico, que inclui a delimitação e avaliação das zonas ripárias. Um estudo de caso foi realizado na Microbacia do Ribeirão São João (3.656 ha, no município de Mineiros do Tietê (São Paulo, Brasil. Mapas de Classe de Capacidade de Uso da Terra e de Adequação do Uso do Solo foram elaborados, utilizando o Sistema de Informação Geográfica (SIG, para a construção dos cenários convencional e do proposto. Excluindo a Área de Preservação Permanente (APP, o cenário convencional indicou que 59,0% da área destinada à agricultura está adequadamente utilizada, 28,2% está subutilizada e 2,6% está sobreutilizada. O cenário proposto ou hidrológico, com inclusão da identificação da zona ripária (24,9% da microbacia mostrou que muitas áreas que, no cenário convencional, possuem pouca restrição para o cultivo intensivo, como as classes II e III, são zonas ripárias, de sensibilidade hidrológica. Existem dentro dos limites da zona ripária 38,9% de classe de capacidade de uso III e 49,5% de classe IV. O planejador, desconsiderando a zona ripária, pode colocar em risco áreas vitais que, se degradadas, representam danos para a saúde e resiliência da microbacia.Riparian zones are water-saturated areas, permanent or temporary, which are important for the protection of the water resources in small watersheds. This study compared the adequacy of the land use in two scenarios of agricultural planning of a small watershed: the conventional scenario, representing the method usually employed, which considers

  4. A importância das áreas ripárias para a sustentabilidade hidrológica do uso da terra em microbacias hidrográficas The importance of the riparian areas for hydrologic sustainability of the land use in watersheds

    Directory of Open Access Journals (Sweden)

    Cláudia Mira Attanasio

    2013-01-01

    Full Text Available Zonas ripárias são áreas de saturação hídrica, permanente ou temporária, cuja principal função é a proteção dos recursos hídricos de uma microbacia. Essa pesquisa comparou a adequação do uso do solo de dois cenários de planejamento agrícola de uma microbacia: o cenário convencional, representando o método usualmente empregado, que apenas considera as classes de capacidade de uso da terra, e o cenário hidrológico, que inclui a delimitação e avaliação das zonas ripárias. Um estudo de caso foi realizado na Microbacia do Ribeirão São João (3.656 ha, no município de Mineiros do Tietê (São Paulo, Brasil. Mapas de Classe de Capacidade de Uso da Terra e de Adequação do Uso do Solo foram elaborados, utilizando o Sistema de Informação Geográfica (SIG, para a construção dos cenários convencional e do proposto. Excluindo a Área de Preservação Permanente (APP, o cenário convencional indicou que 59,0% da área destinada à agricultura está adequadamente utilizada, 28,2% está subutilizada e 2,6% está sobreutilizada. O cenário proposto ou hidrológico, com inclusão da identificação da zona ripária (24,9% da microbacia mostrou que muitas áreas que, no cenário convencional, possuem pouca restrição para o cultivo intensivo, como as classes II e III, são zonas ripárias, de sensibilidade hidrológica. Existem dentro dos limites da zona ripária 38,9% de classe de capacidade de uso III e 49,5% de classe IV. O planejador, desconsiderando a zona ripária, pode colocar em risco áreas vitais que, se degradadas, representam danos para a saúde e resiliência da microbacia.Riparian zones are water-saturated areas, permanent or temporary, which are important for the protection of the water resources in small watersheds. This study compared the adequacy of the land use in two scenarios of agricultural planning of a small watershed: the conventional scenario, representing the method usually employed, which considers

  5. Nearby stars to distant galaxies: TMT-ALMA synergies

    Science.gov (United States)

    Sheth, Kartik; Wilson, Christine

    2014-07-01

    Although they will probe very different wavelength regimes, significant synergies will exist for TMT and ALMA due to their capabilities for high angular resolution photometric and spectroscopic imaging. We illustrate this complementarity by examining a few specific science examples ranging from exoplanets, star forming disks in our Milky Way to black hole mass measurements in nearby galaxies to high redshift galaxy assemly. Since ALMA will be a relatively mature instrument by the end of TMT construction, we focus on synergies with the TMT first-light instruments as much as possible. We will also describe the current status and capabilities of ALMA and showcase some recent science results.

  6. ALMA Partners Break Ground on World's Largest Millimeter Wavelength Telescope

    Science.gov (United States)

    2003-11-01

    Scientists and dignitaries from North America, Europe, and Chile broke ground today (Thursday, November 6, 2003) on what will be the world's largest, most sensitive radio telescope operating at millimeter wavelengths. ALMA - the Atacama Large Millimeter Array - will be a single instrument composed of 64 high-precision antennas located on the Chajnantor plain of the Chilean Andes in the District of San Pedro de Atacama, 16,500 feet (5,000 meters) above sea level. ALMA's primary function will be to observe and image with unprecedented clarity the enigmatic cold regions of the Universe, which are optically dark, yet shine brightly in the millimeter portion of the electromagnetic spectrum. ALMA Array Artist's Conception of ALMA Array in Compact Configuration (Click on Image for Larger Version) Other Images Available: Artist's conception of the antennas for the Atacama Large Millimeter Array Moonrise over ALMA test equipment near Cerro Chajnantor, Chile VertexRSI antenna at the VLA test site The Atacama Large Millimeter Array is an international astronomy facility. ALMA is an equal partnership between Europe and North America, in cooperation with the Republic of Chile, and is funded in North America by the U.S. National Science Foundation (NSF) in cooperation with the National Research Council of Canada (NRC), and in Europe by the European Southern Observatory (ESO) and Spain. ALMA construction and operations are led on behalf of North America by the National Radio Astronomy Observatory (NRAO), which is managed by Associated Universities, Inc. (AUI), and on behalf of Europe by ESO. "The U.S. National Science Foundation joins today with our North American partner, Canada, and with the European Southern Observatory, Spain, and Chile to prepare for a spectacular new instrument," said Dr. Rita Colwell, director of the U.S. National Science Foundation. "The Atacama Large Millimeter Array will expand our vision of the Universe with "eyes" that pierce the shrouded mantles of

  7. Can land use changes alter carbon, nitrogen and major ion transport in subtropical brazilian streams? Modificações no uso da terra podem alterar o transporte fluvial de carbono, nitrogênio e íons maiores?

    Directory of Open Access Journals (Sweden)

    Daniela Mariano Lopes da Silva

    2007-08-01

    Full Text Available Several studies in tropical watersheds have evaluated the impact of urbanization and agricultural practices on water quality. In Brazil, savannas (known regionally as Cerrados represent 23% of the country's surface, representing an important share to the national primary growth product, especially due to intense agriculture. The purpose of this study is to present a comprehensive evaluation, on a yearly basis, of carbon, nitrogen and major ion fluxes in streams crossing areas under different land use (natural vegetation, sugar cane and eucalyptus in a savanna region of SE Brazil. Eucalyptus and sugar cane alter the transport of the investigated elements in small watersheds. The highest concentration of all parameters (abiotic parameters, ions, dissolved organic carbon DOC - and dissolved inorganic carbon - DIC were found in Sugar Cane Watersheds (SCW. The observed concentrations of major cations in Eucalyptus Watersheds (EW (Mg, Ca, K, Na, as well as DIN and DOC, were found frequently to be intermediate values between those of Savanna Watersheds (SW and SCW, suggesting a moderate impact of eucalyptus plantations on the streamwater. Same trends were found in relation to ion and nutrient fluxes, where the higher values corresponded to SCW. It is suggested that sugar cane plantations might be playing an important role in altering the chemistry of water bodies.Diversos estudos têm sido desenvolvidos em bacias de drenagem tropicais no intuito de avaliar o impacto da urbanização e das práticas agrícolas na qualidade dos corpos d'água. No Brasil, as savanas (conhecidas regionalmente como Cerrado representam 23% do território brasileiro, sendo uma região importante no crescimento nacional, especialmente devido às intensas atividades agrícolas. A finalidade deste trabalho é apresentar uma avaliação dos fluxos de carbono, nitrogênio e principais íons em córregos com diferentes usos do solo (vegetação, cana de açúcar e eucalipto em uma

  8. Land use and the hydro-sedimentological response of a watershed in a semiarid region. = Uso da terra e resposta hidrossedimentológica de microbacia no semiárido

    Directory of Open Access Journals (Sweden)

    Paulilo Palácio Brasil

    2012-12-01

    érios reflexos negativos nessa região. Objetivou-se com esta pesquisa analisar a influência da ação antrópica sobre as respostas hidrossedimentológicas em microbacia experimental de escoamento efêmero no semiárido cearense durante os anos de 2009 e 2010. A área de drenagem da microbacia estudada é de 2,8 ha. No primeiro ano de estudo (2009 a área foi mantida inalterada com vegetação de caatinga nativa e no ano seguinte foi aplicado um tratamento de uso do solo comum na região, que consta de supressão da vegetação, seguida de queimada e cultivo de gramínea Andropógon gayanus Kunt para a produção de pastagem. A estação chuvosa de 2009 apresentou um total precipitado de 1.063 mm, sendo que 23,1% da lâmina total precipitada foi convertido em escoamento superficial, resultando em uma produção de sedimentos de 730 kg ha-1. Em 2010, devido ao menor volume de precipitação (809 mm a lâmina total escoada correspondeu a 13,9%, mas a produção de sedimentos foi maximizada, com valor total de 2.832 kg ha-1, sendo 72% maior que a do ano anterior, demonstrando o efeitonegativo do manejo aplicado.

  9. Tecnología, literatura técnica y diseño de máquinas de guerra durante la baja Edad Media occidental: el Thexaurus regis Franciae acquisitionibus Terrae Santae de Guido da Vigevano (1335

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    García Fitz, Francisco

    2011-12-01

    Full Text Available Although during the early centuries of the Middle Ages in the West the military treatises of Antiquity did not fall completely into oblivion (as can be demonstrated by the diffusion achieved by Vegetius’s work, and despite the fact that the technology and design of war engines had undergone some important advances, the fact is that not until the fourteenth and fifteenth centuries did technical literature designed to spread new and sometimes imaginative models fl ourish. Against this backdrop of renewed interest in the design and construction of this type of machines, the report that Guido da Vigevano presented in 1335 to Philip VI of France for the recovery of the Holy Land represents a milestone because of its originality, the mixture of pragmatism and fantasy, and the infl uence of Guido’s proposals on later authors.Aunque durante los primeros siglos de la Edad Media occidental no llegó a olvidarse del todo la tratadística militar clásica, como demuestra la difusión de la obra de Vegecio, y a pesar de que la tecnología y el diseño de máquinas de guerra conoció algunos avances importantes, lo cierto es que habrá que esperar a los siglos XIV y XV para que se produzca el florecimiento de una literatura técnica destinada a difundir nuevos y a veces imaginativos modelos. En este panorama de renovado interés por el diseño y construcción de este tipo de ingenios, el informe presentado en 1335 por Guido da Vigevano a Felipe VI de Francia para la recuperación de Tierra Santa representa un hito fundamental por su originalidad, por la mezcla de pragmatismo y fantasía, y por la influencia de sus propuestas sobre autores posteriores.

  10. Efeitos dos minerais acessórios na geoquímica de elementos terras-raras em granitóides do Complexo Jequitinhonha no Extremo Sul da Bahia

    Directory of Open Access Journals (Sweden)

    Joil José Celino

    2002-04-01

    Full Text Available Objetiva-se comparar e discutir padrões de ETR em rochas e minerais acessórios (monazita, apatita e zircão de granitos crustais, de idade neoproterozóica, nas proximidades dos povoados de São Paulinho (SPL, Santa Luzia do Norte (SLN, São João do Sul (SJS e Santo Antônio do Jacinto (SAJ, denominados de Suíte São Paulinho (SSP no extremo sul do Estado da Bahia. Apenas nas rochas muito diferenciadas dessa suíte, pobres em minerais acessórios, ocorrem mudanças significativas nos formatos dos padrões de ETR, sugerindo que, nos estágios iniciais da evolução magmática, as variações de formatos, devido ao fracionamento de minerais essenciais, são, em boa parte, mascaradas pelos minerais acessórios.The concentrations of light rare land elements (LRLE in plutonic felsic rock are, in majority, completely dominated by supplementary phases, such as monazite, producing a potent petrogenetic indicative in the chemical study of RLE in granitic rocks. Seeking to deepen this notion we are presenting, comparing and discussing patterns of ETR in rocks, essential minerals and trace elements of massive crustal granites from the Neoproterozoic age, in the proximities of São Paulinho's town (SPL, Santa Luzia do Norte (SLN São João do Sul (SJS and Santo Antônio do Jacinto (SAJ in the Jequitinhonha Complex in the State of Bahia, northeast Brazil. Just in very differentiated rocks (poor in trace minerals, there happens significant changes in the formats of the patterns of ETR, suggesting that in the initial stages of magmatic evolution, the variations of those formats, due to the division of essential minerals, are in good part masked by the trace minerals.

  11. Terapia das Paixões: A Cura da Alma

    Directory of Open Access Journals (Sweden)

    Antonio Carlos Tarquinio

    2008-02-01

    Full Text Available A philosophia antiga é um modo de vida, uma escolha “existencial”. Onde os escritos de Sócrates? Onde os escritos de Epicteto? Onde os escritos de Amônio Sacas? (2 A palavra do filósofo se levanta na base de uma vida filosófica e não o contrário. O filósofo não é um inventor de sistemas, ele é, antes de tudo, uma vida que fala sem palavras. A philosophia antiga é terapêutica e ascética.

  12. Exploitation of TerraSAR-X

    Science.gov (United States)

    Herrmann, Jorg

    2004-01-01

    InfoTerra is an innovative market-derived EO-services concept with end-to-end products and service chains addressing end user information requirements in existing and new markets, with the advantage of a dedicated SAR satellite system TerraSAR (L+X-band) featuring high spatial and thematic resolution. The services will be provided from integrated value chains in a network with complementary partners, benefiting from most up-to-date and reliable image acquisition. The service development has been initiated in 1998 running in parallel to the TerraSAR space and ground system implementation. Infoterra, a new geo-information services company founded in 2001, implements the business concept. TerraSAR-X will be the first system element being available in 2006. The X-band SAR capability enables various applications, e.g. change detection to rationalize updating of cartographic databases; forest inventories, and de-/afforestation monitoring; crop stand density monitoring to support optimized fungicide application; land use monitoring in support of environmental control. A key challenge addressed in the exploitation development is the largely automated and quality controlled large area processing and feature extraction. The high resolution, multi-polarization, and multi-mode TerraSAR-X data source will considerably improve the short-term event observation from space. Reception of data via dedicated ground stations of customers or partners will also be offered.

  13. Simulação de cenários alternativos de uso da terra em uma microbacia utilizando técnicas de modelagem e geoprocessamento Alternative scenario simulation of land use in a watershed through geoprocessing and modeling techniques

    Directory of Open Access Journals (Sweden)

    R. E. Machado

    2003-08-01

    Full Text Available O modelo SWAT (Soil and Water Assessment Tool foi aplicado na simulação de cenários alternativos de uso da terra na microbacia hidrográfica do Ribeirão dos Marins, em Piracicaba (SP, no biênio 1999/2000. Dois cenários foram simulados. No primeiro, o uso atual foi mantido numa faixa de mata ciliar de 30 m em toda a extensão dos cursos d'água e de 50 m ao redor das nascentes, de acordo com o Código Florestal. No segundo cenário, como as pastagens ocupavam 30,9 % da área da microbacia, nas encostas mais íngremes, com alto potencial erosivo, as áreas de pastagem foram substituídas por vegetação florestal. As simulações dos dois cenários foram comparadas com as condições do cenário atual em termos de produção de sedimentos. Os cenários geraram diferentes padrões espaciais da produção de sedimentos. Uma redução de 94,0 % na produção de sedimentos foi obtida com a substituição da pastagem por vegetação nativa (cenário 2. No cenário 1, a redução foi de 10,8 %. Esses resultados evidenciam a necessidade de tratar a paisagem em bacias hidrográficas de forma global, identificando as "áreas sensíveis ambientalmente", onde são necessárias práticas de controle dos processos erosivos e não somente práticas de proteção dispensada aos cursos d'água por meio da mata ciliar.The model SWAT (Soil and Water Assessment Tool was used to simulate alternative scenarios of land use in Ribeirão dos Marins watershed, in Piracicaba, State of São Paulo, Brazil, for the biennial period 1999/2000. Two scenarios were simulated. The first one (scenario 1 was based on the current land use except for the introduction of a continuous riparian buffer of 30 m along the drainage network and of 50 m around the springs, in accordance to Brazil's environmental legislation. In the second (scenario 2 the steepest slopes (30.9 % of the watershed area with high erosive potential, covered by pasture, were substituted by native forest. The

  14. ALMA Correlator Real-Time Data Processor

    Science.gov (United States)

    Pisano, J.; Amestica, R.; Perez, J.

    2005-10-01

    The design of a real-time Linux application utilizing Real-Time Application Interface (RTAI) to process real-time data from the radio astronomy correlator for the Atacama Large Millimeter Array (ALMA) is described. The correlator is a custom-built digital signal processor which computes the cross-correlation function of two digitized signal streams. ALMA will have 64 antennas with 2080 signal streams each with a sample rate of 4 giga-samples per second. The correlator's aggregate data output will be 1 gigabyte per second. The software is defined by hard deadlines with high input and processing data rates, while requiring interfaces to non real-time external computers. The designed computer system - the Correlator Data Processor or CDP, consists of a cluster of 17 SMP computers, 16 of which are compute nodes plus a master controller node all running real-time Linux kernels. Each compute node uses an RTAI kernel module to interface to a 32-bit parallel interface which accepts raw data at 64 megabytes per second in 1 megabyte chunks every 16 milliseconds. These data are transferred to tasks running on multiple CPUs in hard real-time using RTAI's LXRT facility to perform quantization corrections, data windowing, FFTs, and phase corrections for a processing rate of approximately 1 GFLOPS. Highly accurate timing signals are distributed to all seventeen computer nodes in order to synchronize them to other time-dependent devices in the observatory array. RTAI kernel tasks interface to the timing signals providing sub-millisecond timing resolution. The CDP interfaces, via the master node, to other computer systems on an external intra-net for command and control, data storage, and further data (image) processing. The master node accesses these external systems utilizing ALMA Common Software (ACS), a CORBA-based client-server software infrastructure providing logging, monitoring, data delivery, and intra-computer function invocation. The software is being developed in tandem

  15. Análise da dinâmica sazonal de fitofisionomias do bioma Mata Atlântica com base em índices de vegetação do sensor MODIS/TERRA / Analysis of the seasonal dynamics of some Atlantic Forest biome physiognomies with basis of vegetation indices derived from MOD

    Directory of Open Access Journals (Sweden)

    Elói Lennon Dalla Nora

    2010-08-01

    Full Text Available Composições de dezesseis dias de índices de vegetação do sensor Moderate Resolution Imaging Spectroradiometer (MODIS, com resolução espacial de 250 metros, a bordo do satélite TERRA, foram utilizadas para caracterizar a dinâmica sazonal no ano de 2008 de duas fitofisionomias do bioma Mata Atlântica e analisar a sua dinâmica espectral. Os índices Normalized Difference Vegetation Index (NDVI e Enhanced Vegetation Index (EVI, calculados a partir dos dados do sensor MODIS e uma base comum de pixels, foram comparados entre si e com uma base de dados de ordem climática (temperatura e precipitação, para cada fitofisionomia. Os resultados indicaram que os fragmentos de floresta estacional decídua e floresta ombrófila mista apresentam um padrão sazonal comum, porém, com variações de amplitude em relação a cada índice. O EVI apresentou-se mais sensível às variações anuais da vegetação em relação ao NDVI, demonstrando-se mais eficiente. Para ambas as formações florestais se estabelece uma correlação positiva entre o perfil EVI e NDVI com as variações de temperatura. A dinâmica espectral/temporal revelou um contraste marcante sob condições sazonais distintas convergindo com o padrão apresentado pelos índices de vegetação. Os dados produzidos indicam potencialidades da utilização do sensor MODIS para o monitoramento contínuo das formações florestais sulinas com resolução espacial moderada e alta resolução temporal. AbstractModerate resolution imaging spectroradiometer (MODIS 16-day vegetation index composites with 250 meters of spatial resolution from TERRA satellites were used to characterize the seasonal dynamics in the period of 2008 of two physiognomies of Atlantic Forest biome and to analyze its spectral dynamics. The Normalized Difference Vegetation Index (NDVI and Enhanced Vegetation Index (EVI, calculated from the data of MODIS sensor and a common base of pixels, were compared between themselves

  16. Técnicas construtivas sustentáveis: lajes de terra armada com bambu

    OpenAIRE

    Carlos, Ambrósio Joaquim

    2012-01-01

    Atendendo às crescentes preocupações ambientais na indústria da construção e às potencialidades do bambu como material ecológico, neste trabalho, é apresentado uma técnica construtiva sustentável e inovadora de conceção de lajes de terra e bambu. Para tal, foram desenvolvidos ensaios de caracterização mecânica de bambu da espécie Phyllostachys nidulária e de argamassas de terra estabilizadas com cal e/ou cimento. Com os materiais caracterizados, partiu-se para o dimensionamento e construção d...

  17. La deducción de las partes del alma de un conflicto de deseos en República IV

    OpenAIRE

    Fierro, María Angélica

    2007-01-01

    El propósito del presente trabajo es demostrar que en la distinción de las partes del alma realizada en República 4 se pretende deducirlas a partir de conflictos entre deseos. Ésta es una hipótesis limitada pero que, de ser correcta, da elementos para suponer que en esta obra el ser humano es pensado como constituido esencialmente por la corriente de deseo que domina su alma. En este caso la psicología y teoría educativa de la República serían afines a la teoría del éros desarrollada en el Ba...

  18. ALMA Observations of the Sun in Cycle 4 and Beyond

    CERN Document Server

    Wedemeyer, S; Battaglia, M; Labrosse, N; Fleishman, G; Hudson, H; Antolin, P; Alissandrakis, C; Ayres, T; Ballester, J; Bastian, T; Black, J; Benz, A; Brajsa, R; Carlsson, M; Costa, J; DePontieu, B; Doyle, G; de Castro, G Gimenez; Gunár, S; Harper, G; Jafarzadeh, S; Loukitcheva, M; Nakariakov, V; Oliver, R; Schmieder, B; Selhorst, C; Shimojo, M; Simões, P; Soler, R; Temmer, M; Tiwari, S; Van Doorsselaere, T; Veronig, A; White, S; Yagoubov, P; Zaqarashvili, T

    2016-01-01

    This document was created by the Solar Simulations for the Atacama Large Millimeter Observatory Network (SSALMON) in preparation of the first regular observations of the Sun with the Atacama Large Millimeter/submillimeter Array (ALMA), which are anticipated to start in ALMA Cycle 4 in October 2016. The science cases presented here demonstrate that a large number of scientifically highly interesting observations could be made already with the still limited solar observing modes foreseen for Cycle 4 and that ALMA has the potential to make important contributions to answering long-standing scientific questions in solar physics. With the proposal deadline for ALMA Cycle 4 in April 2016 and the Commissioning and Science Verification campaign in December 2015 in sight, several of the SSALMON Expert Teams composed strategic documents in which they outlined potential solar observations that could be feasible given the anticipated technical capabilities in Cycle 4. These documents have been combined and supplemented w...

  19. The Cosmic Infrared Background seen by ALMA

    CERN Document Server

    Carniani, S; De Zotti, G; Negrello, M; Marconi, A; Botwhell, M; Capak, P; Carilli, C; Castellano, M; Cristiani, S; Ferrara, A; Fontana, A; Gallerani, S; Jones, G; Ohta, K; Ota, K; Pentericci, L; Santini, P; Sheth, K; Vallini, L; Vanzella, E; Wagg, J; Williams, R J

    2015-01-01

    The origin of the Cosmic Infrared Background (CIB) is still poorly understood, and represents a challenge from both the theoretical and observational points of view. We analysed 18 ALMA continuum maps in band 6 and 7, with rms down to 7.8 $\\mu$Jy, to estimate differential number counts down to 60 $\\mu$Jy and 100 $\\mu$Jy at $\\lambda =$1.3 mm and $\\lambda =$1.1 mm, respectively. We improved the source extraction method to detect sources down to S/N = 3.5. We detected 50 faint sources ($ 40 ~M_{\\odot}/yr$. The differential number counts are in nice agreement with recent semi-analytical models of galaxy formation down to our faint fluxes, therefore supporting the galaxy evolutionary scenarios and assumptions made in these models.

  20. ALMA observations of the Orion proplyds

    Energy Technology Data Exchange (ETDEWEB)

    Mann, Rita K.; Di Francesco, James; Johnstone, Doug; Matthews, Brenda C. [National Research Council Canada, 5071 West Saanich Road, Victoria, BC, V9E 2E7 (Canada); Andrews, Sean M. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Williams, Jonathan P. [Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822 (United States); Bally, John [CASA, University of Colorado, CB 389, Boulder, CO 80309 (United States); Ricci, Luca [Department of Astronomy, California Institute of Technology, MC 249-17, Pasadena, CA 91125 (United States); Hughes, A. Meredith, E-mail: rita.mann@nrc-cnrc.gc.ca [Van Vleck Observatory, Astronomy Department, Wesleyan University, 96 Foss Hill Drive, Middletown, CT 06459 (United States)

    2014-03-20

    We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of protoplanetary disks ('proplyds') in the Orion Nebula Cluster. We imaged five individual fields at 856 μm containing 22 Hubble Space Telescope (HST)-identified proplyds and detected 21 of them. Eight of those disks were detected for the first time at submillimeter wavelengths, including the most prominent, well-known proplyd in the entire Orion Nebula, 114-426. Thermal dust emission in excess of any free-free component was measured in all but one of the detected disks, and ranged between 1 and 163 mJy, with resulting disk masses of 0.3-79 M {sub jup}. An additional 26 stars with no prior evidence of associated disks in HST observations were also imaged within the 5 fields, but only 2 were detected. The disk mass upper limits for the undetected targets, which include OB stars, θ{sup 1} Ori C, and θ{sup 1} Ori F, range from 0.1 to 0.6 M {sub jup}. Combining these ALMA data with previous Submillimeter Array observations, we find a lack of massive (≳3 M {sub jup}) disks in the extreme-UV-dominated region of Orion, within 0.03 pc of θ{sup 1} Ori C. At larger separations from θ{sup 1} Ori C, in the far-UV-dominated region, there is a wide range of disk masses, similar to what is found in low-mass star forming regions. Taken together, these results suggest that a rapid dissipation of disk masses likely inhibits potential planet formation in the extreme-UV-dominated regions of OB associations, but leaves disks in the far-UV-dominated regions relatively unaffected.

  1. ALMA observations of the Orion proplyds

    International Nuclear Information System (INIS)

    We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of protoplanetary disks ('proplyds') in the Orion Nebula Cluster. We imaged five individual fields at 856 μm containing 22 Hubble Space Telescope (HST)-identified proplyds and detected 21 of them. Eight of those disks were detected for the first time at submillimeter wavelengths, including the most prominent, well-known proplyd in the entire Orion Nebula, 114-426. Thermal dust emission in excess of any free-free component was measured in all but one of the detected disks, and ranged between 1 and 163 mJy, with resulting disk masses of 0.3-79 M jup. An additional 26 stars with no prior evidence of associated disks in HST observations were also imaged within the 5 fields, but only 2 were detected. The disk mass upper limits for the undetected targets, which include OB stars, θ1 Ori C, and θ1 Ori F, range from 0.1 to 0.6 M jup. Combining these ALMA data with previous Submillimeter Array observations, we find a lack of massive (≳3 M jup) disks in the extreme-UV-dominated region of Orion, within 0.03 pc of θ1 Ori C. At larger separations from θ1 Ori C, in the far-UV-dominated region, there is a wide range of disk masses, similar to what is found in low-mass star forming regions. Taken together, these results suggest that a rapid dissipation of disk masses likely inhibits potential planet formation in the extreme-UV-dominated regions of OB associations, but leaves disks in the far-UV-dominated regions relatively unaffected.

  2. Terra Nova breaks new ground for alliances

    International Nuclear Information System (INIS)

    This paper reviews the development of alliances to help develop the Terra Nova oil and gas field in the offshore Atlantic areas of Canada. Largely attributed to BP, the strategic alliance concept got its start in the North Sea and on the North Slope of Alaska. BP saw it as the best way to take advantage of economy-of-scale, mitigate risk, and achieve outsourcing goals while retaining their core competencies. This paper reviews the methods of developing the alliances, the developing of a development plan for the Terra Nova field, and how the alliance plans to maximize the profittability of the operation for all involved

  3. Future mmVLBI Research with ALMA: A European vision

    OpenAIRE

    Tilanus, R. P. J.; Krichbaum, T. P.; J. A. Zensus(); Baudry, A.; Bremer, M.; Falcke, H.; Giovannini, G.; Laing, R.; van Langevelde, H. J.; Vlemmings, W; Abraham, Z.; Afonso, J.; Agudo, I.; A. ALBERDI; Alcolea, J.

    2014-01-01

    Very long baseline interferometry at millimetre/submillimetre wavelengths (mmVLBI) offers the highest achievable spatial resolution at any wavelength in astronomy. The anticipated inclusion of ALMA as a phased array into a global VLBI network will bring unprecedented sensitivity and a transformational leap in capabilities for mmVLBI. Building on years of pioneering efforts in the US and Europe the ongoing ALMA Phasing Project (APP), a US-led international collaboration with MPIfR-led European...

  4. Análise espaço-temporal do uso da terra em parte do semi-árido cearense Spatial and temporal-time analysis of land use in part of the semi-arid region of Ceará State, Brazil

    Directory of Open Access Journals (Sweden)

    J. B. Andrade

    2004-04-01

    Full Text Available A cobertura vegetal exerce papel imprescindível à proteção e conservação dos recursos naturais, principalmente no que diz respeito aos solos. Este estudo teve como objetivo avaliar e analisar a dimensão espacial e temporal da ação antrópica na cobertura vegetal de parte do semi-árido cearense, utilizando imagens LANDSAT TM-5, de 1985 e 1994, e técnicas de geoprocessamento, para verificar a hipótese de que a degradação ambiental vem sendo intensificada. Foram confeccionadas cartas de vegetação, uso da terra, solos e hidrografia, obtendo-se cartas de sobreposição, por meio das quais se constatou o aumento de áreas degradadas nas diferentes unidades fitoecológicas. No período de uma década, comprovou-se o processo progressivo da degradação nas áreas dos municípios de Independência, Pedra Branca, Mombaça e Tauá, tendo as áreas do município de Pedra Branca apresentado menor degradação. A unidade fitoecológica mais degradada, dentre as estudadas, foi a Caatinga Arbórea Aberta, desencadeando processos de degradação e transformação das unidades circunvizinhas. Grande parte da área foi atingida por processos de degradação ambiental, com forte pauperização da biodiversidade, acompanhados por um rebaixamento geral das formações vegetais.The vegetation cover plays a key role in protection and conservation of natural resources, particularly concerning soils. This study had as objective to analyze space and time dimensions of anthropic influence on the vegetation cover in part of the semi-arid region of the Ceará State, Brazil. LANDSAT TM-5 satellite images of 1985 and 1994 combined with geoprocessing techniques were used to verify the hypothesis of intensification of environmental degradation. Maps of the vegetation cover, land use, soils, and hydrography were elaborated. They pointed out to an increase in degraded areas of the different phytoecological units. During this decade, a progressive degradation

  5. Seasonal Frost in Terra Sirenum

    Science.gov (United States)

    2006-01-01

    This image of the Terra Sirenum region of Mars was taken by the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) at 0918 UTC (4:18 a.m. EST) on Nov. 25, 2006, near 38.9 degrees south latitude, 195.9 degrees east longitude. CRISM's image was taken in 544 colors covering 0.36-3.92 micrometers, and shows features as small as 18 meters (60 feet) across. At this time, Mars' southern hemisphere was experiencing mid-winter. During Martian southern winter, the southern polar cap is covered and surrounded by carbon dioxide frost and water frost. This is unlike Earth, whose frozen winter precipitation is made up of only one volatile -- water. The carbon dioxide frost evaporates, or sublimates, at a lower temperature than water frost. So, during spring, the carbon dioxide ice evaporates first and leaves a residue of water frost, which later sublimates as well. The image shown here covers part of a crater rim, which is illuminated from the upper left. North is at the top. The topography creates a cold microenvironment on the south side of the rim that is partially protected from solar illumination. That cold surface contains an outlier of the southern seasonal frost about 15 degrees of latitude closer to the equator than the average edge of the frost at this season. The top image was constructed from three infrared wavelengths that highlight the bluer color of frost than the background rock and soil. Note that the frost occurs both on sunlit and shaded surfaces on the south side of the rim. The shaded areas are still visible because they are illuminated indirectly by the Martian sky. The bottom image was constructed by measuring the depths of spectral absorption bands due to water frost and carbon dioxide frost, and displaying the results in image form. Blue shows strength of an absorption due to water frost near 1.50 micrometers, and green shows strength of an absorption due to carbon dioxide frost near 1.45 micrometers. Red shows brightness of the surface at 1

  6. Scaling the Pipe: NASA EOS Terra Data Systems at 10

    Science.gov (United States)

    Wolfe, Robert E.; Ramapriyan, Hampapuram K.

    2010-01-01

    Standard products from the five sensors on NASA's Earth Observing System's (EOS) Terra satellite are being used world-wide for earth science research and applications. This paper describes the evolution of the Terra data systems over the last decade in which the distributed systems that produce, archive and distribute high quality Terra data products were scaled by two orders of magnitude.

  7. Constituintes básicos da célula, nutrição nos seres heterotróficos e o papel da sismologia no estudo da Terra : Práticas letivas em Biologia e Geologia no 10º ano de escolaridade

    OpenAIRE

    Marques, Carla Sofia da Silva

    2014-01-01

    Este relatório foi realizado no âmbito da unidade curricular de Estágio Pedagógico e Relatório do Mestrado em Ensino de Biologia e de Geologia no 3º Ciclo do Ensino Básico e no Ensino Secundário. Os objetivos gerais deste trabalho foram descrever as experiências de ensino e aprendizagem vivenciadas durante o estágio pedagógico, apresentar os métodos, estratégias e recursos selecionados para utilizar na prática letiva, apresentar os resultados relativos ao impacto dos métodos, estratégias e re...

  8. Urihi A: A Terra-Floresta Yanomami

    OpenAIRE

    Welch, James R.

    2010-01-01

    Review of Urihi A: A Terra-Floresta Yanomami. Bruce Albert and William Milliken with Gale Goodwin Gomez. São Paulo: Instituto Socioambiental, 2009. 207 pp., illustrations, tables, bibliography, appendices, index. Paperback ISBN: 978‐85 85994‐72‐3.

  9. ULF fluctuations at Terra Nova Bay (Antarctica

    Directory of Open Access Journals (Sweden)

    A. Meloni

    2000-06-01

    Full Text Available ULF geomagnetic field measurements in Antarctica are a very important tool for better understanding the dynamics of the Earth’s magnetosphere and its response to the variable solar wind conditions. We review the results obtained in the last few years at the Italian observatory at Terra Nova Bay

  10. Numerical simulation of fecal coliform reduction at a constructed wetland Simulação numérica da redução de coliformes fecais em terras úmidas construídas

    Directory of Open Access Journals (Sweden)

    Mariângela Amendola

    2003-12-01

    plantas, ambos cultivados com a macrófita Typha sp. Os dados teóricos foram obtidos a partir do modelo matemático, adaptado para descrever o processo físico de escoamento subsuperficial. A simulação numérica em que se empregou o método numérico de diferenças finitas, foi realizada com o pacote de computação científica MATLAB 6.1. Os resultados da análise comparativa entre os dados teóricos e experimentais são apresentados para os dois tipos de leito suporte. Alguns coeficientes e parâmetros foram ajustados para caracterizar os sistemas construídos. Os resultados obtidos foram analisados e algumas conclusões sobre o processo físico e sobre a adequação do modelo matemático foram enumeradas.

  11. Terra Populus and DataNet Collaboration

    Science.gov (United States)

    Kugler, T.; Ruggles, S.; Fitch, C. A.; Clark, P. D.; Sobek, M.; Van Riper, D.

    2012-12-01

    Terra Populus, part of NSF's new DataNet initiative, is developing organizational and technical infrastructure to integrate, preserve, and disseminate data describing changes in the human population and environment over time. Terra Populus will incorporate large microdata and aggregate census datasets from the United States and around the world, as well as land use, land cover, climate and other environmental datasets. These data are widely dispersed, exist in a variety of data structures, have incompatible or inadequate metadata, and have incompatible geographic identifiers. Terra Populus is developing methods of integrating data from different domains and translating across data structures based on spatio-temporal linkages among data contents. The new infrastructure will enable researchers to identify and merge data from heterogeneous sources to study the relationships between human behavior and the natural world. Terra Populus will partner with data archives, data producers, and data users to create a sustainable international organization that will guarantee preservation and access over multiple decades. Terra Populus is also collaborating with the other projects in the DataNet initiative - DataONE, the DataNet Federation Consortium (DFC) and Sustainable Environment-Actionable Data (SEAD). Taken together, the four projects address aspects of the entire data lifecycle, including planning, collection, documentation, discovery, integration, curation, preservation, and collaboration; and encompass a wide range of disciplines including earth sciences, ecology, social sciences, hydrology, oceanography, and engineering. The four projects are pursuing activities to share data, tools, and expertise between pairs of projects as well as collaborating across the DataNet program on issues of cyberinfrastructure and community engagement. Topics to be addressed through program-wide collaboration include technical, organizational, and financial sustainability; semantic

  12. Studying Young Circumstellar Disks with ALMA

    Science.gov (United States)

    Ménard, F. C.

    2005-12-01

    Accretion disks are pivotal elements in the formation and early evolution of solar-like stars. On top of supplying the raw material for stellar build-up, their internal conditions also regulate the formation of planets. Their study therefore holds the key to solve the mystery of the formation of our Solar System. This article focuses on observational studies of circumstellar disks associated with pre-main sequence solar-like stars and presents a few selected problems where ALMA will contribute in finding answers. At optical and near-infrared wavelengths, the direct measurement of disk parameters poses an obvious challenge: at the distance of typical star forming regions (e.g. ˜140 pc for Taurus), a planetary system like ours (with a diameter of ≃ 50 AU out to Pluto, but excluding the Kuiper belt) subtends only 0.35 arcsec. Moreover, its surface brightness is low in comparison to the bright central star. Hence, high angular resolution and high contrast imaging techniques are required if one hopes to resolve and measure such protoplanetary disks. Fortunately, potent imaging instruments have been available for about 10 years now. They cover a large part of the electromagnetic spectrum, from the UV/optical with HST, the near-infrared with ground-based adaptive optics systems to the millimeter range with long-baseline radio interferometers. It is therefore not surprising that our knowledge of the structure of disks surrounding low-mass stars has made a gigantic leap forward in the last decade. However, the angular resolution of current millimeter interferometers will remain significantly poorer than the resolution that is available at shorter wavelengths (˜ 0.1 arcsec) until ALMA provides the necessary long baselines. At that time, astronomers will have access to data of comparable resolution over a very large wavelength range, with unprecedented sensitivity. As a direct consequence, our understanding of the disk structure and evolution should improve just as much

  13. ALMA Telescope Passes Major Milestone with Successful Antenna Link

    Science.gov (United States)

    2009-05-01

    The Atacama Large Millimeter/submillimeter Array (ALMA), an immense international telescope project under construction in northern Chile, reached a major milestone on April 30, when two ALMA antennas were linked together as an integrated system to observe an astronomical object for the first time. The milestone achievement, technically termed "First Fringes," came at ALMA’s Operations Support Facility, 9,500 feet above sea level. Faint radio waves emitted by the planet Mars were collected by the two 12-meter diameter ALMA antennas, then processed by state-of-the-art electronics to turn the two antennas into a single, high-resolution telescope system, called an interferometer. Such pairs of antennas are the basic building blocks of imaging systems that enable radio telescopes to deliver pictures that approach or even exceed the resolving power of visible light telescopes. In such a system, each antenna is combined electronically with every other antenna to form a multitude of antenna pairs. Each pair contributes unique information that is used to build a highly-detailed image of the astronomical object under observation. When completed early in the next decade, ALMA’s 66 antennas will provide over a thousand such antenna pairings, with distances between antennas exceeding ten miles. This will enable ALMA to see with a sharpness surpassing that of the best space telescopes. The antennas will operate at an altitude of 16,500 feet, high above the OSF, in one of the best locations on Earth for millimeter-wavelength astronomy, the Chajnantor Plateau in Chile’s Atacama Desert. Last week’s successful Mars observation was conducted at an observing frequency of 104.2 GHz. Astronomers measured the distinctive varying “fringes” detected by the interferometer as the planet moved across the sky. “This is a great success,” said Adrian Russell, North American ALMA Project Director at the National Radio Astronomy Observatory (NRAO), “not because we observed a

  14. U.S., European ALMA Partners Award Prototype Antenna Contracts

    Science.gov (United States)

    2000-03-01

    The U.S. and European partners in the Atacama Large Millimeter Array (ALMA) project have awarded contracts to U.S. and Italian firms, respectively, for two prototype antennas. ALMA is a planned telescope array, expected to consist of 64 millimeter-wave antennas with 12-meter diameter dishes. The array will be built at a high-altitude, extremely dry mountain site in Chile's Atacama desert, and is scheduled to be completed sometime in this decade. On February 22, 2000, Associated Universities Inc. (AUI) signed an approximately $6.2 million contract with Vertex Antenna Systems, of Santa Clara, Calif., for construction of one prototype ALMA antenna. AUI operates the U.S. National Radio Astronomy Observatory (NRAO) for the National Science Foundation under a cooperative agreement. The European partners contracted with the consortium of European Industrial Engineering and Costamasnaga, of Mestre, Italy, on February 21, 2000, for the production of another prototype. (Mestre is located on the inland side of Venice.) The two antennas must meet identical specifications, but will inherently be of different designs. This will ensure that the best possible technologies are incorporated into the final production antennas. Only one of the designs will be selected for final production. Several technical challenges must be met for the antennas to perform to ALMA specifications. Each antenna must have extremely high surface accuracy (25 micrometers, or one-third the diameter of a human hair, over the entire 12-meter diameter). This means that, when completed, the surface accuracy of the ALMA dishes will be 20 times greater than that of the Very Large Array (VLA) antennas, and about 50 times greater than dish antennas for communications or radar. The ALMA antennas must also have extremely high pointing accuracy (0.6 arcseconds). An additional challenge is that the antennas, when installed at the ALMA site in Chile, will be exposed to the ravages of weather at 16,500 feet (5000 meters

  15. ALMA nutator design and preliminary performances

    Science.gov (United States)

    Martin-Cocher, Pierre; Ford, John; Koch, Patrick M.; Ni, Chih-Wen; Chen, Wei-Long; Chen, Ming-Tang; Raffin, Philippe; Ong, Ching-Long; Ho, Paul T. P.; Symmes, Arthur H.

    2012-09-01

    We report the past two years of collaboration between the different actors on the ALMA nutator. Building on previous developments, the nutator has seen changes in much of the design. A high-modulus carbon fiber structure has been added on the back of the mirror in order to transfer the voice coils forces with less deformation, thus reducing delay problems due to flexing. The controller is now an off-the-shelf National Instrument NI-cRIO, and the amplifier a class D servo drive from Advanced Motion Controls, with high peak power able to drive the coils at 300 Volts DC. The stow mechanism has been totally redesigned to improve on the repeatability and precision of the stow position, which is also the reference for the 26 bits Heidenhain encoders. This also improves on the accuracy of the stow position with wind loading. Finally, the software, written largely with National Instrument's LabView, has been developed. We will discuss these changes and the preliminary performance achieved to date.

  16. Mineralogy and chemistry of archaeological ceramic fragments from archaeological Dark Earth site in Colombian Amazon Mineralogia e química de fragmentos cerâmicos arqueológicos em sítio com Terra Preta da Amazônia Colombiana

    Directory of Open Access Journals (Sweden)

    Marcondes Lima da Costa

    2011-03-01

    Full Text Available Several Archaeological Dark Earth (ADE sites have been already found in the Colombian Amazon forest showing high content of archaeological ceramic fragments similarly to those in the Brazilian Amazon represented by Quebrada Tacana site. Their fragments are yellow to grey colour, display a burned clayey matrix which involves fragments of cariapé and coal and ash particles, besides grains of quartz and micas. The clay matrix is made of metakaolinite, quartz, and some mica flakes, chlorite and sepiolite. Cariapé and cauixi spicules are constituted of cristobalite, which is also the main mineral component of the coal and ashes. Although not detected by X-ray diffraction, the phosphate minerals should be present, since the contents of phosphor reach up to 2.90 Wt.% P2O5. Possibly it occurs as aluminium-phosphate, since Ca contents fall below 0.1 Wt.%. These mineralogical and chemical characteristics allow to correlate these ceramic fragments with those found in the ADE in Brazil and reinforce phosphor as an important chemical component, which indicates human activity by the daily use of pottery all over the Amazon region.Vários sítios arqueológicos de Terra Preta Arqueológica (TPA encontrados na floresta Amazônica Colombiana também contêm alto conteúdo de fragmentos cerâmicos semelhantes aqueles da Amazônia Brasileira, como mostra o sítio Quebrada Tacana. Seus fragmentos cerâmicos são amarelo a cinza, exibem matriz argilosa calcinada envolvendo fragmentos de cariapé, carvão e partículas de cinza, grãos de quartzo e micas. A matriz é composta de metacaulinita a material amorfo, quartzo, folhas de micas, clorita e sepiolita. Cariapé e cauixi são constituídos de cristobalita, da mesma forma o carvão e as cinzas. Embora não detectados pela difração de raios x, os fosfatos devem estar presentes, pois foram detectados teores de P2O5 de até 2,90 %, possivelmente como fosfatos de alumínio, já que o conteúdo de Ca está abaixo 0

  17. "O que vêm da terra não faz mal": relatos de problemas relacionados ao uso de plantas medicinais por raizeiros de Diadema/SP "Natural and therefore free of risks": adverse effects, poisonings and other problems related to medicinal herbs by "raizeiros" in Diadema/SP

    Directory of Open Access Journals (Sweden)

    Juliana Lanini

    2009-03-01

    Full Text Available A crença de que medicamentos à base de plantas são isentos de riscos à saúde faz parte da bagagem cultural da população afeita ao seu uso: "o que vêm da terra não faz mal". No entanto, o potencial tóxico, as características específicas do usuário, a possibilidade de contaminação e a falta de regulamentação constituem fatores de risco para a ocorrência de reações adversas, intoxicações e outras complicações decorrentes de seu uso. Foram realizadas entrevistas semi-estruturadas junto a 20 raizeiros (vendedores de ervas "in natura" na cidade de Diadema/SP. Foram relatados 40 casos de problemas relacionados ao uso de 22 espécies de plantas medicinais. As espécies mais citadas foram Luffa operculata - buchinha (7 casos, Senna alexandrina - sene (4 casos e Paullinia cupana - guaraná (3 casos. Dentre os sinais e sintomas relatados, os mais freqüentes foram relacionados ao sistema nervoso central, problemas gastrointestinais e cardiovasculares. Os entrevistados também relataram um caso de aborto relacionado ao uso de S. alexandrina e três casos de óbito após a ingestão do chá do fruto de L. operculata. O caráter "natural" das plantas medicinais não é sinônimo de ausência de riscos para a população usuária. É necessária a implantação de políticas de fitofarmacovigilância eficientes, a fim de tornar o consumo mais racional e, deste modo, minimizar os riscos à população usuária.Traditionally, medicinal herbs have been considered gentle and harmless because of their natural origin: "natural and therefore free of risks". However, toxic potential, various consumer-related factors (such as age, disease factors, pregnancy, etc, contamination, and lack of regulation concerning quality control are some of the risk factors deemed to be associated with herbal adverse reactions, poisonings and other complications. Over a 7-month period, semi-structured interviews were carried out with 20 "raizeiros" (traditional

  18. Perfil nutricional e fatores associados à ocorrência de desnutrição entre crianças indígenas Kaingáng da Terra Indígena de Mangueirinha, Paraná, Brasil Nutritional profile and factors associated with malnutrition in Kaingáng children on the Mangueirinha Indigenous Reserve, Paraná State, Brazil

    Directory of Open Access Journals (Sweden)

    Adriana Masiero Kühl

    2009-02-01

    Full Text Available Este estudo objetivou avaliar o estado nutricional de crianças indígenas e verificar os fatores associados à ocorrência de agravos nutricionais. Foram avaliadas 141 crianças Kaingáng de 0 a 60 meses de idade da Terra Indígena de Mangueirinha, Paraná, Brasil, por meio das medidas de peso e altura ou comprimento. Realizaram-se entrevistas com a aplicação de um questionário sobre condições materno-infantis e sócioeconômicas. Segundo os parâmetros da Organização Mundial da Saúde (2006, 24,8% das crianças apresentavam déficit de altura para idade (AI, 9,2% baixo peso para idade (PI, 2,1% baixo peso para altura (PA e 2,1% baixo peso segundo o índice de massa corporal para idade (IMCI. De acordo com o NCHS (1977, 19,9% das crianças apresentaram baixa AI, 9,2% baixo PI e 1,4% baixo PA. O sobrepeso chegou a 6,4%, segundo o IMCI. O baixo peso ao nascer e os materiais utilizados na construção das paredes das casas estiveram estatisticamente associados com déficits antropométricos. Este estudo mostra que as crianças Kaingáng estão inseridas em um contexto marcado por precárias condições de vida, que estão associadas com indicadores desfavoráveis do estado nutricional.The goal of this study was to evaluate the nutritional status of indigenous children and to investigate factors associated with nutritional deficits. Weight and height measurements were obtained for 141 Kaingáng children from 0 to 5 years of age living on the Mangueirinha Indigenous Reserve in Paraná State, Brazil. Data on maternal and infant conditions and socioeconomic characteristics were also gathered through face-to-face interviews. Based on World Health Organization criteria (2006, 24.8% of the children presented low height-for-age (HA, 9.2% low weight-for-age (WA, 2.1% low weight-for-height (WH, and 2.1% low weight according to body mass index for age (BMIA. Based on NCHS criteria (1977, 19.9% of the children presented low HA, 9.2% low WA, and 1

  19. Solving the polarization problem in ALMA-VLBI observations

    CERN Document Server

    Marti-Vidal, I; Alef, W; Conway, J; Lindqvist, M; Zensus, A J

    2015-01-01

    The Atacama Large mm-submm Array (ALMA) is, by far, the most sensitive mm/submm telescope in the World. The ALMA Phasing Project (APP) will allow us to phase-up all the ALMA antennas and use them as one single VLBI station. This will be a key component of the Event Horizon Telescope (EHT), a Global VLBI array at millimeter wavelengths. A problem in the APP is the calibration and conversion of the polarization channels. Most VLBI stations record their signals in a circular basis, but the ALMA receivers record in a linear basis. The strategy that will be followed in the phased-ALMA VLBI observations will be to correlate in "mixed" basis (i.e., linear versus circular) and convert the visibilities to a pure circular basis after the correlation. We have developed an algorithm to perform such a polarization conversion of the VLBI visibilities. In these proceedings, we present the basics of the PolConvert algorithm and discuss on the polarization conversion in the general case were single dishes (besides phased arra...

  20. Detecting Cold Gas at z=3 with ALMA and SKA

    CERN Document Server

    Obreschkow, Danail; Rawlings, Steve

    2011-01-01

    We forecast the abilities of the Atacama Large Millimeter/submillimeter Array (ALMA) and the Square Kilometer Array (SKA) to detect CO and HI emission lines in galaxies at redshift z=3. A particular focus is set on Milky Way (MW) progenitors at z=3 for their detection within 24 h constitutes a key science goal of ALMA. The analysis relies on a semi-analytic model, which permits the construction of a MW progenitor sample by backtracking the cosmic history of all simulated present-day galaxies similar to the real MW. Results: (i) ALMA can best observe a MW at z=3 by looking at CO(3-2) emission. The probability of detecting a random model MW at 3-sigma in 24 h using 75 km/s channels is roughly 50%, and these odds can be increased by co-adding the CO(3-2) and CO(4-3) lines. These lines fall into ALMA band 3, which therefore represents the optimal choice towards MW detections at z=3. (ii) Higher CO transitions contained in the ALMA bands geq6 will be invisible, unless the considered MW progenitor coincidentally ho...

  1. Terra, ambiente e herança no alto do Jequitinhonha, Minas Gerais Land, environment, and inheritance in the High Jequitinhonha, Minas Gerais

    Directory of Open Access Journals (Sweden)

    Flávia Maria Galizoni

    2002-01-01

    Full Text Available No alto Jequitinhonha, nordeste de Minas Gerais, a principal forma de os lavradores adquirirem terra é através da herança, sua própria ou do cônjuge ou, ainda, através da junção das duas. É muito difícil que se adquiram terra por outras vias. Assim, o dono da terra é antes de tudo um herdeiro, e a terra é, principalmente, um patrimônio formado pela família. O objetivo deste artigo foi analisar como posse e uso da terra se compõem com o ambiente e com a família, formando com ambos uma urdidura que passa pelo trabalho, pela herança, pela migração e pelo casamento, fornecendo elementos importantes para compreensão da sociedade rural e das formas de domínio da terra que se estabeleceram naquela região.In the High Jequitinhonha region of northeastern Minas Gerais, Brazil, farmers acquire land principally through inheritance: their own, their spouses, or a combination of the two. The owner of the land is, before anything else, an heir; and the land is primarily a family patrimony. The objective of this article is to add to the understanding of Brazilian rural society and rural forms of land control by analyzing the interaction among land ownership, land use, the environment, and the family, focusing on the effect of this combination on the inheritance process, migration, work, and marriage.

  2. Ecologia global contra diversidade cultural? Conservação da natureza e povos indígenas no Brasil: O Monte Roraima entre Parque Nacional e terra indígena Raposa-Serra do Sol Global ecology versus cultural diversity? Conservation of nature and indigenous peoples in Brazil. Roraima Mount: National Park vs. Raposa-Serra do Sol Indigenous Land

    Directory of Open Access Journals (Sweden)

    Vincenzo Lauriola

    2003-01-01

    Full Text Available As políticas de conservação da natureza em diversos paises estão cada vez mais ligadas à tomada de decisões ecológicas globais. Exemplos destas ligações variam entre a definição de prioridades e objetivos das políticas, à ação de ONG's ambientalistas internacionais, à existência de fundos e programas globais para o meio ambiente e o desenvolvimento sustentável, até as novas oportunidades econômicas representadas pelos mercados emergentes para serviços ecológicos globais e ''commodities ambientais''. Estas políticas freqüentemente conflitam com os direitos e as necessidades de diferentes populações locais, pois a implementação de áreas protegidas que excluem o homem recebe prioridade com respeito a outros modelos de conservação e uso sustentável da biodiversidade. O Brasil não faz exceção a esta regra. Hoje as políticas de conservação da natureza estão entrando em conflito direto com as políticas de preservação do direito à diferença cultural dos povos indígenas. Isto acontece a diversos níveis e em vários contextos locais diferenciados, desde a região Atlântica até a Amazônia e o Escudo das Guianas. A existência de fundos globais e suas prioridades podem contribuir para explicar estes conflitos, pois a ligação ecológica global contribui para redefinir as relações políticas nacionais e locais. O caso do Parque Nacional do Monte Roraima na Terra Indígena Raposa-Serra do Sol ilustra como modelos de conservação baseados na exclusão do homem, concebidos e implementados de cima para baixo, acirram conflitos preexistentes, políticos e sobre o direito à terra. Abordado através de um angulo diferente, este caso também aponta um possível caminho para soluções viáveis. Conversando, andando de canoa a remo e a pé com os índios Ingarikó na Serra do Sol, è possível perceber sua própria perspectiva cultural ecológica como elemento fundamental para a preservação dos recursos naturais

  3. VIDEO AT OSF - Interview to David Rabanus, ESO, on the ALMA OSF site, at 2900 m

    CERN Multimedia

    2015-01-01

    In this interview, recorded on the ALMA OSF (Operations and Support Facilities) site, at 2900 m on the Chajnantor highlands, physicist David Rabanus of ESO/ ALMA takes us inside the heart of the ALMA antennas, to reveal how the antennas detect millimetric and submillimetric radiowaves.

  4. Economia antiga a partir de um centro de consumo lusitano. Terra sigillata e cerâmica africana de cozinha em Chãos Salgados (Mirobriga?)

    OpenAIRE

    Quaresma, José, 1965-

    2012-01-01

    Economia antiga. Análise tipológica, estatística e estratigráfica da terra sigillata e cerâmica fricana de cozinha de Chãos Salgados, Mirobriga. Análise comercial entre os séculos I e VI. Análise da evolução urbanística da cidade.

  5. Grand Banks wins Terra Nova sweeps

    International Nuclear Information System (INIS)

    The Grand Bank Alliance of Companies, which includes Brown and Root and Agra Industries, Haliburton Energy Services, Doris Engineering, FMC Corporation and PCL Constructors, have been awarded the primary fabrication contract by Petro-Canada to build a floating production and storage vessel for the Terra Nova oil project. The total pre-production costs are estimated at $1.6 billion; the first oil is scheduled for 1999. The contract involves construction of a double-hulled floating production, storage and offloading vessel, designed to process up to 150,000 barrels of crude per day, and storing up to one million barrels. In addition to Terra Nova, Brown and Root and Agra also have project management contracts building infrastructure for Sable Island natural gas

  6. Is Ishtar Terra a thickened basaltic crust?

    Science.gov (United States)

    Arkani-Hamed, Jafar

    1992-01-01

    The mountain belts of Ishtar Terra and the surrounding tesserae are interpreted as compressional regions. The gravity and surface topography of western Ishtar Terra suggest a thick crust of 60-110 km that results from crustal thickening through tectonic processes. Underthrusting was proposed for the regions along Danu Montes and Itzpapalotl Tessera. Crustal thickening was suggested for the entire Ishtar Terra. In this study, three lithospheric models with total thicknesses of 40.75 and 120 km and initial crustal thicknesses of 3.9 and 18 km are examined. These models could be produced by partial melting and chemical differentiation in the upper mantle of a colder, an Earth-like, and a hotter Venus having temperatures of respectively 1300 C, 1400 C, and 1500 C at the base of their thermal boundary layers associated with mantle convection. The effects of basalt-granulite-eclogite transformation (BGET) on the surface topography of a thickening basaltic crust is investigated adopting the experimental phase diagram and density variations through the phase transformation.

  7. The Soul of Lupus with ALMA (SOLA) Project Overview

    Science.gov (United States)

    Saito, M.; de Gregorio, I.; Team SOLA

    2015-12-01

    The SOLA (Soul of Lupus with ALMA) project is conducting comprehensive studies of the Lupus Molecular Clouds and their star formation processes. Our goal is to exploit ALMA and other facilities over a wide wavelength range to establish a prototypical low-mass star forming scenario based on the Lupus region. We focus mainly on 10-104 au scale physics, kinematics, density, and temperature, together with detailed modelling of radiative transfer. Our unique source catalog so far contains more than 700 sources at various evolutionary stages and we have obtained complementary data with Mopra, APEX, etc. In the poster, we will report the latest status of SOLA and the expected outcome in observing runs in the near future, including ALMA Cycle 3.

  8. New Eyes on the Sun — Solar Science with ALMA

    Science.gov (United States)

    Wedemeyer, S.

    2016-03-01

    In Cycle 4, which starts in October 2016, the Atacama Large Millimeter/submillimeter Array (ALMA) will be open for regular observations of the Sun for the first time. ALMA’s impressive capabilities have the potential to revolutionise our understanding of our host star, with far-reaching implications for our knowledge about stars in general. The radiation emitted at ALMA wavelengths originates mostly from the chromosphere — a complex and dynamic layer between the photosphere and the corona that is prominent during solar eclipses. Despite decades of intensive research, the chromosphere is still elusive due to its complex nature and the resulting challenges to its observation. ALMA will change the scene substantially by opening up a new window on the Sun, promising answers to long-standing questions.

  9. Europa inaugura á maior maquina da terra em maio

    CERN Multimedia

    Garcia, Rafael

    2008-01-01

    Experiment in tunnel of 27 km investigates some of the biggest mysteries of the nature. With a budget around 5 billions of USD and more than 8000 physicists and engineers in a laboratory of nuclear physics near Geneva. (1/4 page + photos)

  10. η Carinae Baby Homunculus uncovered by ALMA

    Energy Technology Data Exchange (ETDEWEB)

    Abraham, Zulema; Beaklini, Pedro P. B. [Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, R. do Matão 1226, Cidade Universitária, CEP 05508-900 São Paulo, SP (Brazil); Falceta-Gonçalves, Diego, E-mail: zulema.abraham@iag.usp.br [Escola de Artes, Ciências e Humanidades, Universidade de São Paulo, R. Arlindo Bettio 1000, 03828-000 São Paulo, SP (Brazil)

    2014-08-20

    We report observations of η Carinae obtained with ALMA in the continuum of 100, 230, 280, and 660 GHz in 2012 November, with a resolution that varied from 2.''88 to 0.''45 for the lower and higher frequencies, respectively. The source is not resolved, even at the highest frequency; its spectrum is characteristic of thermal bremsstrahlung of a compact source, but different from the spectrum of optically thin wind. The recombination lines H42α, He42α, H40α, He40α, H50β, H28α, He28α, H21α, and He21α were also detected, and their intensities reveal non-local thermodynamic equilibrium effects. We found that the line profiles could only be fit by an expanding shell of dense and ionized gas, which produces a slow shock in the surroundings of η Carinae. Combined with fittings to the continuum, we were able to constrain the shell size, radius, density, temperature, and velocity. The detection of the He recombination lines is compatible with the high-temperature gas and requires a high-energy ionizing photon flux, which must be provided by the companion star. The mass-loss rate and wind velocity, necessary to explain the formation of the shell, are compatible with an luminous blue variable eruption. The position, velocity, and physical parameters of the shell coincide with those of the Weigelt blobs. The dynamics found for the expanding shell correspond to matter ejected by η Carinae in 1941 in an event similar to that which formed the Little Homunculus; for that reason, we called the new ejecta the 'Baby Homunculus'.

  11. Greenhouse gas mitigation options in Brazil for land-use change, livestock and agriculture Opções de mitigação de gases do efeito estufa na mudança do uso da terra, pecuária e agricultura no Brasil

    Directory of Open Access Journals (Sweden)

    Carlos Clemente Cerri

    2010-02-01

    Full Text Available National inventories of anthropogenic greenhouse gas (GHG emissions (implementation of the National Communications are organized according to five main sectors, namely: Energy, Industrial Processes, Agriculture, Land-Use Change and Forestry (LUCF and Waste. The objective of this study was to review and calculate the potential of greenhouse gas mitigation strategies in Brazil for the Agricultural and LUCF. The first step consisted in an analysis of Brazilian official and unofficial documents related to climate change and mitigation policies. Secondly, business as usual (BAU and mitigation scenarios were elaborated for the 2010-2020 timeframe, and calculations of the corresponding associated GHG emissions and removals were performed. Additionally, two complementary approaches were used to point out and quantify the main mitigation options: a following the IPCC 1996 guidelines and b based on EX-ACT. Brazilian authorities announced that the country will target a reduction in its GHG between 36.1 and 38.9% from projected 2020 levels. This is a positive stand that should also be adopted by other developing countries. To reach this government goal, agriculture and livestock sectors must contribute with an emission reduction of 133 to 166 Mt CO2-eq. This seems to be reachable when confronted to our mitigation option values, which are in between the range of 178.3 to 445 Mt CO2-eq. Government investments on agriculture are necessary to minimize the efforts from the sectors to reach their targets.Inventários nacionais acerca de emissões de gases do efeito estufa (GEE (refinamentos das Comunicações Nacionais são organizadas de acordo com cinco principais setores, a saber: Energia, Processos Industriais, Agropecuária, Mudanças do Uso da Terra e Florestas e Tratamento de Resíduos. O objetivo dessa revisão foi calcular o potencial das estratégias de mitigação de GEE no Brasil para agropecuária e mudança de uso da terra e florestas. A primeira

  12. Synergies with ALMA and mm/submm facilities

    Science.gov (United States)

    Russell, H.; McNamara, B.; Fabian, A.

    2016-06-01

    New sub-mm facilities, such as ALMA, have opened up exciting new areas of astrophysics. I will review some of ALMA's exciting discoveries from the first five years of science including observations of massive molecular gas flows at the centres of nearby galaxies. Feedback from a central active galactic nucleus is thought to regulate the growth of massive galaxies by suppressing gas cooling and star formation. I will also focus on the potential contribution that XMM-Newton observations could make to these fields over the next decade.

  13. Python code parallelization for ALMA, challenges and alternatives

    OpenAIRE

    Gonzalez, Justo; Taylor, Julian; Castro, Sandra; Kern, Jeff; Knudstrup, Jens; Zampieri, Stefano; Manning, Alisdair

    2015-01-01

    In the last few years development of Python code for science and data reduction purposes has gained significant popularity. ESO in itself uses a Python-based archiving  system for VLT and ALMA data. Also the data reduction suite for ALMA data is python-based. Rapid development is fostered by a big community and a wide range of already available packages. However Python enforces locking mechanisms, to ensure thread safety, that effectively reduce the capacity of Python to use only one cor...

  14. O mercado de terras e o manejo do solo e da água em microbacias hidrográficas: o caso do Paraná Rural - DOI: 10.4025/actascihumansoc.v25i1.2209 Land market and soil and water management in watershed: the Rural Paraná Program case - DOI: 10.4025/actascihumansoc.v25i1.2209

    Directory of Open Access Journals (Sweden)

    Ednaldo Michellon

    2003-06-01

    Full Text Available Neste estudo multidisciplinar aproveitou-se os trabalhos de manejo e conservação dos solos e da água em microbacias hidrográficas, que foram realizados no estado do Paraná, no último quartel do século XX, para avaliar se o preço da terra é sensível às melhorias ambientais. Avaliou-se, através de métodos econométricos, o Programa Paraná Rural, em três faixas de prioridades na sua forma de ação: alta, média e baixa prioridade. A partir dessas diferenças, na aplicação do Programa, esta pesquisa revelou existir relação positiva entre o mercado de terras e o meio ambiente. Portanto, os esforços dessas políticas atingiram não só as expectativas produtivas dos agentes mas, também, as especulativas, pois percebeu-se que, com a adoção dessas práticas conservacionistas, a reprodução do ganho seria duplamente ampliada, tanto em termos produtivos quanto no incremento do preço de suas propriedadesThis multidisciplinary study made use of the soil and water management and watershed studies carried out in Paraná State, in the last quarters of the 20th century, to evaluate if the price of the land is affected by environmental improvements. Paraná Rural Program was evaluated through econometrics, in three levels of priority in its form of action: high, middle and low priority. Thus, based on these differences of the program application, results revealed that there is a positive relationship between the land market and the environment. Therefore, the efforts of these policies reached not only productive, but also the agents' speculative expectations, because they observed that by adopting conservationist practices the reproduction of the profits was increased, in terms of both productivity and price increment of their properties

  15. Efeito da fertilidade de terra preta de índio da Amazônia Central no estado nutricional e na produtividade do mamão hawaí (Carica papaya L.) Effect of amazonian dark earth fertility on nutritional status and fruit production of papaya(Carica papaya L.)in Central Amazonia

    OpenAIRE

    Newton Paulo de Souza Falcão; Lillian França Borges

    2006-01-01

    Com o objetivo de avaliar o efeito da fertilidade de solos antropogênicos no estado nutricional e na produtividade do mamão Havaí (Carica papaya L.), conduziu-se o presente estudo em um plantio, localizado na Costa do Açutuba, Iranduba, AM, em Latossolo Amarelo antrópico em plantas com oito meses de idade e no início da produção de frutos, no período de agosto a outubro de 2003. O delineamento experimental foi inteiramente casualizado, com quatro tratamentos e nove repetições, constituídos de...

  16. Alma Flor Ada and the Quest for Change

    Science.gov (United States)

    Manna, Anthony, L.; Hill, Janet; Kellogg, Kathy

    2004-01-01

    Alma Flor Ada, a folklorist, novelist, scholar, teacher, and children's book author has passionate dedication to education for social justice, equality, and peace. As a faculty member at the University of San Francisco, Ada has developed programs that help students and others transform their lives and has written several bilingual legends and…

  17. Circumnuclear molecular gas in M87 detected with ALMA

    Science.gov (United States)

    Vlahakis, Catherine E.

    2016-01-01

    We present the detection of circumnuclear molecular gas residing within 100 pc of the supermassive black hole (SMBH) in the galaxy M87 (3C 274), using the Atacama Large Millimeter/submillimeter Array (ALMA) to image the gas on spatial scales from 100 to 10 pc. The proximity of M87, the archetypical giant elliptical radio galaxy at the centre of the Virgo galaxy cluster, presents a unique opportunity to investigate in detail the circumnuclear molecular gas revealed first by single-dish observations and recently imaged for the first time with ALMA (Vlahakis et al., in prep). ALMA's unique long baseline capability now allows us to make the first detailed investigation of the properties of the interstellar medium around the galaxy's SMBH on scales down to 10 pc (0.1 arcsec). Here, we present results of ALMA Band 3 CO J=1-0 observations obtained at different angular resolutions. With this data we are able to trace the bulk of the molecular gas as well as the continuum emission, providing the deepest and highest spatial resolution images yet of the molecular gas content of this giant elliptical galaxy. The highest resolution data allow us to unambiguously resolve the molecular gas structures for the first time and investigate, in unprecedented detail, the nature and origin of molecular gas that resides within the sphere of influence of the SMBH.

  18. High resolution sub-millimeter imaging with ALMA

    International Nuclear Information System (INIS)

    The Atacama Large Millimeter/Submillimeter Array (ALMA) is an international millimeter/submillimeter interferometer under construction in the Atacama Desert of northern Chile. ALMA will be situated on a high-altitude site at 5000 m elevation which provides excellent atmospheric transmission over most of the wavelength range of 0.3 to 3 mm. At the shortest planned wavelength and most extended configuration, the angular resolution of ALMA will be 5 milliarcseconds. This will give us the ability to, for example, image the gas kinematics in protostars and in protoplanetary disks around young Sun-like stars at a distance of 150 pc, or to image the redshifted dust continuum emission from evolving galaxies at epochs of formation as early as z = 10. The instrument will use superconducting (SIS) mixers to provide the lowest possible receiver noise contribution, and special-purpose water vapor radiometers to assist in calibration of atmospheric phase distortions. At present, the first 7 antennas have been delivered and assembled at the Operations Support Facility (OSF) at 3000 m near San Pedro de Atacama. These antennas will be assessed by ALMA engineering and science staff and then moved to the high site for commissioning. Array commissioning will begin in 2009 with fringes and phase closure amongst at least 3 fully functioning antennas at the high site, and early science observations are expected in late 2010, with full operations in 2012.

  19. Observaci\\'on de lentes gravitatorias con ALMA

    CERN Document Server

    Bonilla, A; Fuentes, I; Motta, V

    2016-01-01

    Gravitational lensing is a fundamental tool for cosmology. A recent instrument which will provide more information for models of these objects is ALMA. Our goal is to select lens candidates to observe with ALMA and then model them using GravLens Software. We had selected 12 quadruple images systems from the CASTLES database, which show a high probability of observing extended sources in the submillimetric range. These new data will allow us to improve existing models. Las lentes gravitatorias son una herramienta fundamental para la cosmolog\\'ia. Un nuevo instrumento que nos proporcionar\\'a mayor informaci\\'on para los modelos de estos objetos, es ALMA. Nuestro objetivo es seleccionar lentes candidatas para observar con ALMA y posteriormente modelarlas mediante el programa GravLens. Seleccionamos de la base de datos de CASTLES, 12 sistemas cu\\'adruples, los cuales tienen mayor probabilidad de observar fuentes extendidas en el rango submilim\\'etrico. Estos nuevos datos nos permitir\\'an mejorar los modelos exite...

  20. Revealing the dynamics of Class 0 protostellar discs with ALMA

    CERN Document Server

    Seifried, D; Walch, S; Banerjee, R

    2016-01-01

    We present synthetic ALMA observations of Keplerian, protostellar discs in the Class 0 stage studying the emission of molecular tracers like $^{13}$CO, C$^{18}$O, HCO$^+$, H$^{13}$CO$^+$, N$_2$H$^+$, and H$_2$CO. We model the emission of discs around low- and intermediate-mass protostars. We show that under optimal observing conditions ALMA is able to detect the discs already in the earliest stage of protostellar evolution, although the emission is often concentrated to the innermost 50 AU. Therefore, a resolution of a few 0.1" might be too low to detect Keplerian discs around Class 0 objects. We also demonstrate that under optimal conditions Keplerian rotation signatures are recognisable and protostellar masses can be determined with high fidelity for edge-on discs. Furthermore, we show that it is possible to reveal Keplerian rotation even for strongly inclined discs and that ALMA should be able to detect possible signs of fragmentation in face-on discs. In order to give some guidance for future ALMA observa...

  1. Alma-0: an imperative language that supports declarative programming

    NARCIS (Netherlands)

    Apt, K.R.; Brunekreef, J.; Partinton, V.; Schaerf, A.

    1997-01-01

    We describe here an implemented small programming language, called Alma, that augments the expressive power of imperative programming by a limited number of features inspired by the logic programming paradigm. These additions encourage declarative programming and make it a more attractive vehicle fo

  2. Terra firma-forme dermatosis revisited.

    Science.gov (United States)

    Browning, John; Rosen, Ted

    2005-01-01

    Terra firma-forme dermatosis is a cutaneous discoloration resembling dirt, hence the clinical name. The dyschromia cannot be removed with routine soap and water washing, but can be eliminated by rubbing with isopropyl alcohol. Although the condition poses no serious medical threat, it is cosmetically distressing. Our experience is that this entity is much more frequent that might be expected when considering the paucity of reports in the readily available medical literature. We chronicle a series of cases to highlight occurrence in widely divergent demographic groups and long duration of remission following appropriate topical intervention. The cause remains unknown. PMID:16150223

  3. Sensoriamento remoto na identificação do uso e ocupação da terra na área do projeto "Conquista da Água", Ilha Solteira - SP, Brasil Remote sensing on the identification of the use and occupation of land of the project "Management of the Water", Ilha Solteira - State of São Paulo, Brazil

    Directory of Open Access Journals (Sweden)

    Hélio R. Silva

    2006-04-01

    Full Text Available A cidade de Ilha Solteira está propondo o projeto "Conquista da Água", visando ao desenvolvimento sustentável do Município, a partir do turismo, da cultura e da ciência e tecnologia. Para atingir esse objetivo, os planejadores do meio físico-ambiental necessitam de dados que possam auxiliá-los na seleção dos melhores locais onde serão instalados as avenidas, o aeroporto e os demais espaços que comporão esse projeto. A elaboração do mapa de uso e cobertura do solo da área de interesse do projeto constitui um dos temas necessários ao banco de dados a ser utilizado pelos planejadores. Neste trabalho, é apresentado o estado de degradação dessa área, o que auxiliará na definição das estratégias de conservação ambiental.The City hall of Ilha Solteira is proposing the project "Management of the Water", seeking to contribute with the sustainable development of the municipal district, through tourism, culture, science and technology. To reach it, the planners of the physical-environmental way, will need data that will aid in the selection of the best local to install the avenues, the airport and other spaces that will compose this project. The elaboration of a Map of the current use and cover of the lands in the area of interest of the project represents one of the necessary themes to compose a database to be used by the planners. In the present work, it is presented a discussion on the state of degradation of the landscape, which will help the definition of strategies of environmental conservation.

  4. Mineralogia e geoquímica de perfis de solo com Terra Preta Arqueológica de Bom Jesus do Tocantins, sudeste da Amazônia Mineralogy and geochemistry of soil profiles with Archeological Black Earth from Bom Jesus do Tocantins, southeastern Amazon

    Directory of Open Access Journals (Sweden)

    Any Kelly Terra da Silva

    2012-01-01

    Full Text Available A comparação de dados morfológicos, mineralógicos e químicos de solo com horizontes antrópicos - Terra Preta Arqueológica (TPA com Argissolos adjacentes permitiu identificar os principais processos responsáveis pela formação da TPA em um sítio arqueológico no Município de Bom Jesus do Tocantins, sudeste do Estado do Pará. A similaridade entre os dados dos horizontes subsuperficiais do solo com TPA e solos adjacentes indica que o horizonte antrópico do solo TPA foi provavelmente desenvolvido a partir de um horizonte similar aos Argissolos adjacentes com posterior transformação pedogenética através da introdução de materiais orgânicos e inorgânicos por antigas colonizações humanas, resultando no espessamento do horizonte superficial e em concentrações maiores de CaO e P2O5 (teores totais, Zn (teor traço, P e Zn disponível (teores disponíveis, além de Ca e Mg trocáveis (teores trocáveis em relação aos Argissolos adjacentes. Além disso, essa intervenção antrópica antiga também provocou modificações no horizonte subsuperficial do Argissolo com TPA, como concentrações altas de P2O5 e principalmente P disponível. O Soil Taxonomy e o Sistema Brasileiro de Classificação de Solos (SiBCS são adequados para a identificação de solo com horizonte antrópico (p.exe. TPA, uma vez que priorizam nas ordens do solo os principais processos pedogenéticos atuantes na formação do solo, relacionados aos horizontes subsuperficiais, além das transformações pedogenéticas posteriores no horizonte superficial. Contudo, este trabalho recomenda o acréscimo de alguns atributos diagnósticos como quantidade de artefatos cerâmicos e líticos, P2O5, P e Zn disponíveis, C orgânico, Ca2++ Mg2+ (teores trocáveis, CTC e índice de saturação por bases no horizonte superficial para o agrupamento e distinção dos diversos tipos de solos antrópicos antigos da Amazônia.The comparison of morphological, mineralogical and

  5. Valores-trabalho e preços de produção em sistemas econômicos sraffianos com terra homogênea

    Directory of Open Access Journals (Sweden)

    Rodolfo Hoffmann

    2001-03-01

    Full Text Available Este artigo analisa a determinação dos valores-trabalho e da mais-valia em um modelo econômico sraffiano-marxista com terra homogênea e escassa. O mesmo modelo analisa a determinação dos preços de produção, da taxa de lucro e da renda da terra. Uma das conclusões é que a existência de mais-valia positiva não é condição suficiente para lucros positivos.This paper analyses the determination of labour values and surplus-value in a Sraffian-Marxist economic model with homogenous and scarce land. The determination of production prices, profit rate and land rent is also analysed. One of the conclusions is that positive surplus value is not a sufficient condition for positive profits.

  6. The Future of Astronomy and the ALMA Archive

    Science.gov (United States)

    Stoehr, F.; Lacy, M.; Leon, S.; Muller, E.; Kawamura, A.

    2015-09-01

    Astronomy is changing as the amount and complexity of data taken grows. We argue that in the future observatories will compete for astronomers to work with their data, that observatories will have to reorient themselves to from providing good data only to providing an excellent end-to-end user-experience with all its implications, that science-grade data-reduction pipelines will become an integral part of the design of a new observatory or instrument and that all this evolution will have a deep impact on how astronomers will do science. We show how ALMA's general design principles are in line with this paradigm and how the ALMA archive fits into this picture.

  7. Resolved images of self-gravitating circumstellar discs with ALMA

    CERN Document Server

    Cossins, P; Testi, L

    2010-01-01

    In this paper we present simulated observations of massive self-gravitating circumstellar discs using the Atacama Large Millimetre/sub-millimetre Array (ALMA). Using a smoothed particle hydrodynamics model of a $0.2M_{\\odot}$ disc orbiting a $1M_{\\odot}$ protostar, with a cooling model appropriate for discs at temperatures below $\\sim 160$K and representative dust opacities, we have constructed maps of the expected emission at sub-mm wavelengths. We have then used the CASA ALMA simulator to generate simulated images and visibilities with various array configurations and observation frequencies, taking into account the expected thermal noise and atmospheric opacities. We find that at 345 GHz (870 $\\mu$m) spiral structures at a resolution of a few AU should be readily detectable in approximately face-on discs out to distances of the Taurus-Auriga star-forming complex.

  8. Star and Stellar Cluster Formation: ALMA-SKA Synergies

    CERN Document Server

    Fuller, G A; Rathborne, J M; Longmore, S; Molinari, S

    2015-01-01

    Over the next decade, observations conducted with ALMA and the SKA will reveal the process of mass assembly and accretion onto young stars and will be revolutionary for studies of star formation. Here we summarise the capabilities of ALMA and discuss recent results from its early science observations. We then review infrared and radio variability observations of both young low-mass and high-mass stars. A time domain SKA radio continuum survey of star forming regions is then outlined. This survey will produce radio light-curves for hundreds of young sources, providing for the first time a systematic survey of radio variability across the full range of stellar masses. These light-curves will probe the magnetospheric interactions of young binary systems, the origins of outflows, trace episodic accretion on the central sources and potentially constrain the rotation rates of embedded sources.

  9. New Inspiring Planetarium Show Introduces ALMA to the Public

    Science.gov (United States)

    2009-03-01

    As part of a wide range of education and public outreach activities for the International Year of Astronomy 2009 (IYA2009), ESO, together with the Association of French Language Planetariums (APLF), has produced a 30-minute planetarium show, In Search of our Cosmic Origins. It is centred on the global ground-based astronomical Atacama Large Millimeter/submillimeter Array (ALMA) project and represents a unique chance for planetariums to be associated with the IYA2009. ESO PR Photo 09a/09 Logo of the ALMA Planetarium Show ESO PR Photo 09b/09 Galileo's first observations with a telescope ESO PR Photo 09c/09 The ALMA Observatory ESO PR Photo 09d/09 The Milky Way band ESO PR Video 09a/09 Trailer in English ALMA is the leading telescope for observing the cool Universe -- the relic radiation of the Big Bang, and the molecular gas and dust that constitute the building blocks of stars, planetary systems, galaxies and life itself. It is currently being built in the extremely arid environment of the Chajnantor plateau, at 5000 metres altitude in the Chilean Andes, and will start scientific observations around 2011. ALMA, the largest current astronomical project, is a revolutionary telescope, comprising a state-of-the-art array of 66 giant 12-metre and 7-metre diameter antennas observing at millimetre and submillimetre wavelengths. In Search of our Cosmic Origins highlights the unprecedented window on the Universe that this facility will open for astronomers. "The show gives viewers a fascinating tour of the highest observatory on Earth, and takes them from there out into our Milky Way, and beyond," says Douglas Pierce-Price, the ALMA Public Information Officer at ESO. Edited by world fulldome experts Mirage3D, the emphasis of the new planetarium show is on the incomparable scientific adventure of the ALMA project. A young female astronomer guides the audience through a story that includes unique animations and footage, leading the viewer from the first observations by Galileo

  10. ALMA's high-cadence imaging capabilities for solar observations

    CERN Document Server

    Wedemeyer, Sven

    2015-01-01

    The Atacama Large Millimeter/submillimeter Array offers an unprecedented view of our Sun at sub-/millimeter wavelengths. The high spatial, temporal, and spectral resolution facilitates the measurement of gas temperatures and magnetic fields in the solar chromosphere with high precision. The anticipated results will revolutionize our understanding of the solar atmosphere and may in particular result in major steps towards solving the coronal heating problem. Based on state-of-the-art 3D radiation magnetohydrodynamic simulations, we calculate the emergent continuum intensity (and thus brightness temperature maps) in the wavelength range accessed by ALMA and simulate instrumental effects for different array configurations. First results show that the local gas temperature can be closely mapped with ALMA and that much of the complex small-scale chromospheric pattern can be resolved.

  11. A energia solar e a sustentabilidade na terra : proposta de intervenção no 1º ciclo do ensino básico

    OpenAIRE

    Mergulhão, Paulo Alexandre Ferreira da Silva

    2013-01-01

    Advogando a importância de que o ensino das ciências deve ser implementado desde tenra idade e tendo em conta todas as vantagens daí decorrentes, os objetivos fundamentais desta investigação consistiram em: i) verificar, em crianças do 1º Ciclo do Ensino Básico, o desenvolvimento da compreensão de conceitos científicos sobre a temática energia solar e sustentabilidade da Terra, através da realização de trabalho prático investigativo; ii) contribuir para a promoção de aprendizagens significati...

  12. History and Technology of Terra Preta Sanitation

    Directory of Open Access Journals (Sweden)

    Sabino De Gisi

    2014-03-01

    Full Text Available In order to reach the Millennium Development Goals for significantly reducing the number of people without access to adequate sanitation, new holistic concepts are needed focusing on economically feasible closed-loop ecological sanitation systems rather than on expensive end-of-pipe technologies. An analysis of a former civilization in the Amazon (nowadays Brazil highlights the possibility to close the loop with a more sustainable lifestyle integrating soil fertility, food security, waste management, water protection and sanitation, renewable energy. Terra Preta do Indio is the anthropogenic black soil produced by ancient cultures through the conversion of bio-waste, fecal matter and charcoal into long-term fertile soils. These soils have maintained high amounts of organic carbon several thousand years after they were abandoned. Deriving from these concepts, Terra Preta Sanitation (TPS has been re-developed and adopted. TPS includes urine diversion, addition of a charcoal mixture and is based on lactic-acid-fermentation with subsequent vermicomposting. Lacto-fermentation is a biological anaerobic process that generates a pre-stabilization of the mixture. The main advantage of lacto-fermentation is that no gas and no odor is produced. What makes it particularly interesting for in-house systems even in urban areas. Instead, vermicomposting is an aerobic decomposition process of the pre-digested materials by the combined action of earthworms and microorganisms. It transforms the carbon and nutrients into the deep black, fertile and stable soil that can be utilized in agriculture. No water, ventilation or external energy is required. Starting from ancient Amazonian civilizations traditional knowledge, the aim of this work is to present TPS systems adopted nowadays.

  13. The 1976 Illini: Sweet Memories of Alma Mater

    OpenAIRE

    Diya Dutt

    1996-01-01

    The purpose of this article is to explore the attitudes of graduates of the class of 1976 from the University of Illinois toward their alma mater over a period of fifteen years. The central question addressed in this article is: How do former students feel about their educational institution as time passes? Early research suggests that students' attachment to their educational institution becomes weaker with the passage of time. This panel data on alumni attitudes towards the academic environ...

  14. The ALMA assembly, integration, and verification project: a retrospective analysis

    Science.gov (United States)

    Lopez, B.; Knee, L. B. G.; Jager, H.; Whyborn, N.; McMullin, J.; Murowinski, R.; Peck, A.; Corder, S.

    2014-08-01

    The Atacama Large Millimeter/submillimeter Array (ALMA) is a joint project between astronomical organizations in Europe, North America, and East Asia, in collaboration with the Republic of Chile. ALMA consists of 54 twelve-meter antennas and 12 seven-meter antennas operating as an aperture synthesis array in the (sub)millimeter wavelength range. Assembly, Integration, and Verification (AIV) of the antennas was completed at the end of the year 2013, while the final optimization and complete expansion to validate all planned observing modes will continue. This paper compares the actually obtained results of the period 2008-2013 with the baselines that had been laid out in the early project-planning phase (2005-2007). First plans made for ALMA AIV had already established a two-phased project life-cycle: phase 1 for setting up necessary infrastructure and common facilities, and taking the first three antennas to the start of commissioning; and phase 2 focused on the steady state processing of the remaining units. Throughout the execution of the project this lifecycle was refined and two additional phases were added, namely a transition phase between phases 1 and 2, and a closing phase to address the project ramp-down. A sub-project called Accelerated Commissioning and Science Verification (ACSV) was carried out during the year 2009 in order to provide focus to the whole ALMA organization, and to accomplish the start-of-commissioning milestone. Early phases of CSV focused on validating the basic performance and calibration. Over time additional observing modes have been validated as capabilities expanded both in hardware and software. This retrospective analysis describes the originally presented project staffing plans and schedules, the underlying assumptions, identified risks and operational models, among others. For comparison actual data on staffing levels, the resultant schedule, additional risks identified and those that actually materialized, are presented. The

  15. Solar ALMA Observations - A new view of our host star

    CERN Document Server

    Wedemeyer, Sven; Brajsa, Roman; Barta, Miroslav; Shimojo, Masumi; Hales, Antonio; Yagoubov, Pavel; Hudson, Hugh

    2015-01-01

    ALMA provides the necessary spatial, temporal and spectral resolution to explore central questions in contemporary solar physics with potentially far-reaching implications for stellar atmospheres and plasma physics. It can uniquely constraint the thermal and magnetic field structure in the solar chromosphere with measurements that are highly complementary to simultaneous observations with other ground-based and space-borne instruments. Here, we highlight selected science cases.

  16. Future mmVLBI Research with ALMA: A European vision

    CERN Document Server

    Tilanus, R P J; Zensus, J A; Baudry, A; Bremer, M; Falcke, H; Giovannini, G; Laing, R; van Langevelde, H J; Vlemmings, W; Abraham, Z; Afonso, J; Agudo, I; Alberdi, A; Alcolea, J; Altamirano, D; Asadi, S; Assaf, K; Augusto, P; Baczko, A-K; Boeck, M; Boller, T; Bondi, M; Boone, F; Bourda, G; Brajsa, R; Brand, J; Britzen, S; Bujarrabal, V; Cales, S; Casadio, C; Casasola, V; Castangia, P; Cernicharo, J; Charlot, P; Chemin, L; Clenet, Y; Colomer, F; Combes, F; Cordes, J; Coriat, M; Cross, N; D'Ammando, F; Dallacasa, D; Desmurs, J-F; Eatough, R; Eckart, A; Eisenacher, D; Etoka, S; Felix, M; Fender, R; Ferreira, M; Freeland, E; Frey, S; Fromm, C; Fuhrmann, L; Gabanyi, K; Galvan-Madrid, R; Giroletti, M; Goddi, C; Gomez, J; Gourgoulhon, E; Gray, M; di Gregorio, I; Greimel, R; Grosso, N; Guirado, J; Hada, K; Hanslmeier, A; Henkel, C; Herpin, F; Hess, P; Hodgson, J; Horns, D; Humphreys, E; Kramer, B Hutawarakorn; Ilyushin, V; Impellizzeri, V; Ivanov, V; Julião, M; Kadler, M; Kerins, E; Klaassen, P; Klooster, K van 't; Kording, E; Kozlov, M; Kramer, M; Kreikenbohm, A; Kurtanidze, O; Lazio, J; Leite, A; Leitzinger, M; Lepine, J; Levshakov, S; Lico, R; Lindqvist, M; Liuzzo, E; Lobanov, A; Lucas, P; Mannheim, K; Marcaide, J; Markoff, S; Martí-Vidal, I; Martins, C; Masetti, N; Massardi, M; Menten, K; Messias, H; Migliari, S; Mignano, A; Miller-Jones, J; Minniti, D; Molaro, P; Molina, S; Monteiro, A; Moscadelli, L; Mueller, C; Müller, A; Muller, S; Niederhofer, F; Odert, P; Olofsson, H; Orienti, M; Paladino, R; Panessa, F; Paragi, Z; Paumard, T; Pedrosa, P; Pérez-Torres, M; Perrin, G; Perucho, M; Porquet, D; Prandoni, I; Ransom, S; Reimers, D; Rejkuba, M; Rezzolla, L; Richards, A; Ros, E; Roy, A; Rushton, A; Savolainen, T; Schulz, R; Silva, M; Sivakoff, G; Soria-Ruiz, R; Soria, R; Spaans, M; Spencer, R; Stappers, B; Surcis, G; Tarchi, A; Temmer, M; Thompson, M; Torrelles, J; Truestedt, J; Tudose, V; Venturi, T; Verbiest, J; Vieira, J; Vielzeuf, P; Vincent, F; Wex, N; Wiik, K; Wiklind, T; Wilms, J; Zackrisson, E; Zechlin, H

    2014-01-01

    Very long baseline interferometry at millimetre/submillimetre wavelengths (mmVLBI) offers the highest achievable spatial resolution at any wavelength in astronomy. The anticipated inclusion of ALMA as a phased array into a global VLBI network will bring unprecedented sensitivity and a transformational leap in capabilities for mmVLBI. Building on years of pioneering efforts in the US and Europe the ongoing ALMA Phasing Project (APP), a US-led international collaboration with MPIfR-led European contributions, is expected to deliver a beamformer and VLBI capability to ALMA by the end of 2014 (APP: Fish et al. 2013, arXiv:1309.3519). This report focuses on the future use of mmVLBI by the international users community from a European viewpoint. Firstly, it highlights the intense science interest in Europe in future mmVLBI observations as compiled from the responses to a general call to the European community for future research projects. A wide range of research is presented that includes, amongst others: - Imagin...

  17. A deep ALMA image of the Hubble Ultra Deep Field

    CERN Document Server

    Dunlop, J S; Biggs, A D; Geach, J E; Michalowski, M J; Ivison, R J; Rujopakarn, W; van Kampen, E; Kirkpatrick, A; Pope, A; Scott, D; Swinbank, A M; Targett, T A; Aretxaga, I; Austermann, J E; Best, P N; Bruce, V A; Chapin, E L; Charlot, S; Cirasuolo, M; Coppin, K E K; Ellis, R S; Finkelstein, S L; Hayward, C C; Hughes, D H; Ibar, E; Khochfar, S; Koprowski, M P; Narayanan, D; Papovich, C; Peacock, J A; Robertson, B; Vernstrom, T; van der Werf, P P; Wilson, G W; Yun, M

    2016-01-01

    We present the results of the first, deep ALMA imaging covering the full 4.5 sq arcmin of the Hubble Ultra Deep Field (HUDF) as previously imaged with WFC3/IR on HST. Using a mosaic of 45 pointings, we have obtained a homogeneous 1.3mm image of the HUDF, achieving an rms sensitivity of 35 microJy, at a resolution of 0.7 arcsec. From an initial list of ~50 >3.5sigma peaks, a rigorous analysis confirms 16 sources with flux densities S(1.3) > 120 microJy. All of these have secure galaxy counterparts with robust redshifts ( = 2.15), and 12 are also detected at 6GHz in new deep JVLA imaging. Due to the wealth of supporting data in this unique field, the physical properties of the ALMA sources are well constrained, including their stellar masses (M*) and UV+FIR star-formation rates (SFR). Our results show that stellar mass is the best predictor of SFR in the high-z Universe; indeed at z > 2 our ALMA sample contains 7 of the 9 galaxies in the HUDF with M* > 2 x 10^10 Msun and we detect only one galaxy at z > 3.5, re...

  18. An Overview of the 2014 ALMA Long Baseline Campaign

    CERN Document Server

    Partnership, ALMA; Vlahakis, C; Corder, S; Remijan, A; Barkats, D; Lucas, R; Hunter, T R; Brogan, C L; Asaki, Y; Matsushita, S; Dent, W R F; Hills, R E; Phillips, N; Richards, A M S; Cox, P; Amestica, R; Broguiere, D; Cotton, W; Hales, A S; Hiriart, R; Hirota, A; Hodge, J A; Impellizzeri, C M V; Kern, J; Kneissl, R; Liuzzo, E; Marcelino, N; Marson, R; Mignano, A; Nakanishi, K; Nikolic, B; Perez, J E; Pérez, L M; Toledo, I; Aladro, R; Butler, B; Cortes, J; Cortes, P; Dhawan, V; Di Francesco, J; Espada, D; Galarza, F; Garcia-Appadoo, D; Guzman-Ramirez, L; Humphreys, E M; Jung, T; Kameno, S; Laing, R A; Leon, S; Mangum, J; Marconi, G; Nagai, H; Nyman, L -A; Perley, R; Radiszcz, M; Rodón, J A; Sawada, T; Takahashi, S; Tilanus, R P J; van Kempen, T; Vilaro, B Vila; Watson, L C; Wiklind, T; Gueth, F; Tatematsu, K; Wootten, A; Castro-Carrizo, A; Chapillon, E; Dumas, G; de Gregorio-Monsalvo, I; Francke, H; Gallardo, J; Garcia, J; Gonzalez, S; Hibbard, J E; Hill, T; Kaminski, T; Karim, A; Krips, M; Kurono, Y; Lopez, C; Martin, S; Maud, L; Morales, F; Pietu, V; Plarre, K; Schieven, G; Testi, L; Videla, L; Villard, E; Whyborn, N; Zwaan, M A; Alves, F; Andreani, P; Avison, A; Barta, M; Bedosti, F; Bendo, G J; Bertoldi, F; Bethermin, M; Biggs, A; Boissier, J; Brand, J; Burkutean, S; Casasola, V; Conway, J; Cortese, L; Dabrowski, B; Davis, T A; Trigo, M Diaz; Fontani, F; Franco-Hernandez, R; Fuller, G; Madrid, R Galvan; Giannetti, A; Ginsburg, A; Graves, S F; Hatziminaoglou, E; Hogerheijde, M; Jachym, P; Serra, I Jimenez; Karlicky, M; Klaasen, P; Kraus, M; Kunneriath, D; Lagos, C; Longmore, S; Leurini, S; Maercker, M; Magnelli, B; Vidal, I Marti; Massardi, M; Maury, A; Muehle, S; Muller, S; Muxlow, T; O'Gorman, E; Paladino, R; Petry, D; Pineda, J; Randall, S; Richer, J S; Rossetti, A; Rushton, A; Rygl, K; Monge, A Sanchez; Schaaf, R; Schilke, P; Stanke, T; Schmalzl, M; Stoehr, F; Urban, S; van Kampen, E; Vlemmings, W; Wang, K; Wild, W; Yang, Y; Iguchi, S; Hasegawa, T; Saito, M; Inatani, J; Mizuno, N; Asayama, S; Kosugi, G; Morita, K -I; Chiba, K; Kawashima, S; Okumura, S K; Ohashi, N; Ogasawara, R; Sakamoto, S; Noguchi, T; Huang, Y -D; Liu, S -Y; Kemper, F; Koch, P M; Chen, M -T; Chikada, Y; Hiramatsu, M; Iono, D; Shimojo, M; Komugi, S; Kim, J; Lyo, A -R; Muller, E; Herrera, C; Miura, R E; Ueda, J; Chibueze, J; Su, Y -N; Trejo-Cruz, A; Wang, K -S; Kiuchi, H; Ukita, N; Sugimoto, M; Kawabe, R; Hayashi, M; Miyama, S; Ho, P T P; Kaifu, N; Ishiguro, M; Beasley, A J; Bhatnagar, S; Braatz, J A; Brisbin, D G; Brunetti, N; Carilli, C; Crossley, J H; D'Addario, L; Meyer, J L Donovan; Emerson, D T; Evans, A S; Fisher, P; Golap, K; Griffith, D M; Hale, A E; Halstead, D; Hardy, E J; Hatz, M C; Holdaway, M; Indebetouw, R; Jewell, P R; Kepley, A A; Kim, D -C; Lacy, M D; Leroy, A K; Liszt, H S; Lonsdale, C J; Matthews, B; McKinnon, M; Mason, B S; Moellenbrock, G; Moullet, A; Myers, S T; Ott, J; Peck, A B; Pisano, J; Radford, S J E; Randolph, W T; Venkata, U Rao; Rawlings, M; Rosen, R; Schnee, S L; Scott, K S; Sharp, N K; Sheth, K J; Simon, R S; Tsutsumi, T; Wood, S J

    2015-01-01

    A major goal of the Atacama Large Millimeter/submillimeter Array (ALMA) is to make accurate images with resolutions of tens of milliarcseconds, which at submillimeter (submm) wavelengths requires baselines up to ~15 km. To develop and test this capability, a Long Baseline Campaign (LBC) was carried out from September to late November 2014, culminating in end-to-end observations, calibrations, and imaging of selected Science Verification (SV) targets. This paper presents an overview of the campaign and its main results, including an investigation of the short-term coherence properties and systematic phase errors over the long baselines at the ALMA site, a summary of the SV targets and observations, and recommendations for science observing strategies at long baselines. Deep ALMA images of the quasar 3C138 at 97 and 241 GHz are also compared to VLA 43 GHz results, demonstrating an agreement at a level of a few percent. As a result of the extensive program of LBC testing, the highly successful SV imaging at long...

  19. Final tests and performances verification of the European ALMA antennas

    Science.gov (United States)

    Marchiori, Gianpietro; Rampini, Francesco

    2012-09-01

    The Atacama Large Millimeter Array (ALMA) is under erection in Northern Chile. The array consists of a large number (up to 64) of 12 m diameter antennas and a number of smaller antennas, to be operated on the Chajnantor plateau at 5000 m altitude. The antennas will operate up to 950 GHz so that their mechanical performances, in terms of surface accuracy, pointing precision and dimensional stability, are very tight. The AEM consortium constituted by Thales Alenia Space France, Thales Alenia Space Italy, European Industrial Engineering (EIE GROUP), and MT Mechatronics is assembling and testing the 25 antennas. As of today, the first set of antennas have been delivered to ALMA for science. During the test phase with ESO and ALMA, the European antennas have shown excellent performances ensuring the specification requirements widely. The purpose of this paper is to present the different results obtained during the test campaign: surface accuracy, pointing error, fast motion capability and residual delay. Very important was also the test phases that led to the validation of the FE model showing that the antenna is working with a good margin than predicted at design level thanks also to the assembly and integration techniques.

  20. A natureza como negação da imortalidade da alma no jovem Feuerbach

    Directory of Open Access Journals (Sweden)

    Eduardo Ferreira Chagas

    2009-12-01

    Full Text Available This article aims at clarifying the two-pointed concept of nature as proposed by young Feuerbach in his work Thoughts on Death and Immortality (Gedanken über Tod und Unsterblichkeit: 1. nature as possibility and condition for all existence within space and time, and 2. nature as negation instance of all being. Nature offers young Feuerbach the model for solution of several oppositions, for one finds within it a dialectical process of assertion and negation, singularity and plurality, individual and gender. Thus, man experiments within nature not only positive assertion but also negation of his existence in the form of his ephemerality and death.

  1. A natureza como negação da imortalidade da alma no jovem Feuerbach

    OpenAIRE

    Eduardo Ferreira Chagas

    2009-01-01

    This article aims at clarifying the two-pointed concept of nature as proposed by young Feuerbach in his work Thoughts on Death and Immortality (Gedanken über Tod und Unsterblichkeit): 1. nature as possibility and condition for all existence within space and time, and 2. nature as negation instance of all being. Nature offers young Feuerbach the model for solution of several oppositions, for one finds within it a dialectical process of assertion and negation, singularity and plurality, individ...

  2. ALMA to Help Solving Acute Mountain Sickness Mystery

    Science.gov (United States)

    2007-04-01

    The Atacama Large Millimeter/submillimeter Array (ALMA) astronomical project will not only enlarge our knowledge of the vast Universe beyond the imaginable. It will also help scientists learn more about the human body. Located 5000m above sea level, in the Chilean Atacama desert, ALMA is the highest site for ground-based astronomy. This property will be put to good use for academic institutions in Chile and in Europe in order to study the human response to extreme altitude conditions. During a ceremony held on 2 April in Antofagasta, the largest town close to ESO's Very Large Telescope, representatives from ALMA, ESO and the University of Antofagasta have officially launched a collaborative agreement that also involves the University of Chile and the University of Copenhagen (Denmark). The newly established cooperation aims at contributing to the promotion of teaching, scientific research, and the expansion of altitude physiology and medicine or other related areas considered appropriate. ESO PR Photo 20/07 ESO PR Photo 20/07 Working at 5000 metres "An increasing number of people are periodically exposed to brisk changes in altitude, and not only for astronomical research," said Jacques Lassalle, the ALMA Safety Manager. "Short stays at high altitude alternate with short stays at sea level but the corresponding shifts are very often established by agreement, and not based on scientific arguments. With this project, we aim at improving our knowledge and procedures in order to protect the long term health of the operators, engineers, and scientists as well as ALMA visitors of all ages and all physical conditions," he added. Around the world, a large number of people systematically commute between sea level and high altitude, for example when working in mountainous mines. This poses stringent conditions that may affect health, wellbeing and working performance. Some of the factors in question are the shift work regime, the perturbation of circadian rhythms, fatigue

  3. Completion and Submission of the Terra Sirenum Map Project

    Science.gov (United States)

    Anderson, R. C.; Dohm, J. M.; Robbins, S.; Schroeder, J.

    2016-06-01

    We have completed and plan to submit a detailed 1:5,000,000-scale geologic map of the Terra Sirenum region, which includes mapping stratigraphic units and identifying tectonic, erosional, depositional, and impact structures.

  4. O direito à terra como um direito humano: a luta pela reforma agrária e o movimento de direitos humanos no Brasil

    Directory of Open Access Journals (Sweden)

    Rossana Rocha Reis

    2012-01-01

    Full Text Available O objetivo deste texto é analisar, por meio da história recente dos movimentos sociais que lutam pela reforma agrária no Brasil, a construção do direito à terra como um direito humano. A partir dos anos de 1970, a interação de movimentos camponeses da Igreja Católica progressista e da rede transnacional de direitos humanos confluiu na produção dessa ideia da posse da terra como um direito humano, que marcou não apenas a luta pela terra no Brasil, como também influenciou a forma como o próprio movimento de direitos humanos foi construído no país e na maneira como ele se inseriu nessa rede transnacional de ativistas.This article seeks to analyze, within the recent history of social movements that struggle for agrarian reform in Brazil today, the build of the land rights as a human right. Since the 1970s, the interaction between peasant movements, the progressive church and the transnational network of human rights has converged into this idea that the land rights are a human right, which not only has marked the character of the struggle for land in Brazil, but has also influenced the way in which the human rights movement has been constructed in the country and how it has taken its place within the transnational network of human rights activism.

  5. TerraService.NET: An Introduction to Web Services

    OpenAIRE

    Barclay, Tom; Gray, Jim; Strand, Eric; Ekblad, Steve; Richter, Jeffrey

    2002-01-01

    This article explores the design and construction of a geo-spatial Internet web service application from the host web site perspective and from the perspective of an application using the web service. The TerraService.NET web service was added to the popular TerraServer database and web site with no major structural changes to the database. The article discusses web service design, implementation, and deployment concepts and design guidelines. Web services enable applications that aggregate a...

  6. Optical-Infrared Properties of Faint 1.3 mm Sources Detected with ALMA

    CERN Document Server

    Hatsukade, Bunyo; Yabe, Kiyoto; Seko, Akifumi; Makiya, Ryu; Akiyama, Masayuki

    2015-01-01

    We report optical-infrared (IR) properties of faint 1.3 mm sources (S_1.3mm = 0.2-1.0 mJy) detected with the Atacama Large Millimeter/submillimeter Array (ALMA) in the Subaru/XMM-Newton Deep Survey (SXDS) field. We searched for optical/IR counterparts of 8 ALMA-detected sources (>=4.0 sigma, the sum of the probability of spurious source contamination is ~1) in a K-band source catalog. Four ALMA sources have K-band counterpart candidates within a 0.4" radius. Comparison between ALMA-detected and undetected K-band sources in the same observing fields shows that ALMA-detected sources tend to be brighter, more massive, and more actively forming stars. While many of the ALMA-identified submillimeter-bright galaxies (SMGs) in previous studies lie above the sequence of star-forming galaxies in stellar mass--star-formation rate plane, our ALMA sources are located in the sequence, suggesting that the ALMA-detected faint sources are more like `normal' star-forming galaxies rather than `classical' SMGs. We found a regio...

  7. El culteranismo cartujo de 'Alma de Dios' (1637), de Miguel de Dicastillo

    OpenAIRE

    Mata-Induráin, C. (Carlos)

    2002-01-01

    El estilo poético del tafallés Miguel de Dicastillo, religioso cartujo, presenta rasgos característicos del culteranismo, cuya obra destacada es un libro de poemas titulado 'Alma de Dios', de 1637. ---------------------- The poetic style of Miguel de Dicastillo has features characteristic of culteranism; his outstanding work is a book of poems entitled 'Alma de Dios', from 1637.

  8. SXDF-ALMA 2-arcmin2 deep survey: 1.1-mm number counts

    NARCIS (Netherlands)

    Hatsukade, Bunyo; Kohno, Kotaro; Umehata, Hideki; Aretxaga, Itziar; Caputi, Karina I.; Dunlop, James S.; Ikarashi, Soh; Iono, Daisuke; Ivison, Rob J.; Lee, Minju; Makiya, Ryu; Matsuda, Yuichi; Motohara, Kentaro; Nakanishi, Kouichiro; Ohta, Kouji; Tadaki, Ken-ich; Tamura, Yoichi; Wang, Wei-Hao; Wilson, Grant W.; Yamaguchi, Yuki; Yun, Min S.

    2016-01-01

    We report 1.1-mm number counts revealed with the Atacama Large Millimeter/submillimeter Array (ALMA) in the Subaru/XMM-Newton Deep Survey Field (SXDF). The advent of ALMA enables us to reveal millimeter-wavelength number counts down to the faint end without source confusion. However, previous studie

  9. Ancient Hydrothermal Springs in Arabia Terra, Mars

    Science.gov (United States)

    Oehler, Dorothy Z.; Allen, Carlton C.

    2008-01-01

    Hydrothermal springs are important astrobiological sites for several reasons: 1) On Earth, molecular phylogeny suggests that many of the most primitive organisms are hyperthermophiles, implying that life on this planet may have arisen in hydrothermal settings; 2) on Mars, similar settings would have supplied energy- and nutrient-rich waters in which early martian life may have evolved; 3) such regions on Mars would have constituted oases of continued habitability providing warm, liquid water to primitive life forms as the planet became colder and drier; and 4) mineralization associated with hydrothermal settings could have preserved biosignatures from those martian life forms. Accordingly, if life ever developed on Mars, then hydrothermal spring deposits would be excellent localities in which to search for morphological or chemical remnants of that life. Previous attempts to identify martian spring deposits from orbit have been general or limited by resolution of available data. However, new satellite imagery from HiRISE has a resolution of 28 cm/pixel which allows detailed analysis of geologic structure and geomorphology. Based on these new data, we report several features in Vernal Crater, Arabia Terra that we interpret as ancient hydrothermal springs.

  10. Novo amostrador para as terras roxas

    Directory of Open Access Journals (Sweden)

    Rino N. Tosello

    1960-01-01

    Full Text Available Neste trabalho descreve-se um novo amostrador tubular, de percussão, especialmente desenvolvido para a amostragem freqüente do solo, em terras roxas, para fins de determinação de umidade e controle de irrigação. Um desenho detalhado do novo amostrador é apresentado, com tôdas as indicações necessárias para que as pessoas ou organizações interessadas possam mandar construir novos modelos, em qualquer oficina mecânica bem aparelhada.In this paper is described a new soil sampler, specially designed for use in sampling Brazilian purple-soil series, which is known to present very peculiar physical properties. The sampler was developed as a result of the need to sample the soil frequently, for the purpose of maintaining the soil water balance in irrigation experiments, carried on field plots. This basic method of controlling water application in such experiments is being extensively used by the Seção de Irrigação, of the Instituto Agronômico. Detailed drawings ond some pictures are shown to allow interested persons or organizations, facing similar problems, to have models of the new sampler built in any good machine shop. The new sampler is very similar in its general characteristics to Veihmeyer's soil sampling tube, and was developed after the failure of this last sampler to operate properly in Brazilian purple-soils

  11. Efeito do macheamento do orifício piloto na resistência ao arrancamento e no torque de inserção dos parafusos pediculares com alma cônica Effect of pilot hole tapping on pullout strength and insertional torque of dual core pedicle screws

    OpenAIRE

    Rodrigo César Rosa; Patrícia Silva; Maurício José Falcai; Antônio Carlos Shimano; Helton Luiz Aparecido Defino

    2010-01-01

    OBJETIVO: Avaliar a influência do macheamento do orifício piloto na resistência ao arrancamento e no torque de inserção dos parafusos pediculares com alma cônica. MÉTODOS: Ensaios mecânicos de arrancamento em máquina universal de ensaios foram realizados com parafusos pediculares com alma cônica inseridos nos pedículos da quinta vértebra lombar de vitelo. As medidas do torque de inserção foram realizadas com torquímetro com capacidade de 10Nm, sendo considerado o maior valor de torque. O prep...

  12. The ALMA common software: dispatch from the trenches

    Science.gov (United States)

    Schwarz, J.; Sommer, H.; Jeram, B.; Sekoranja, M.; Chiozzi, G.; Grimstrup, A.; Caproni, A.; Paredes, C.; Allaert, E.; Harrington, S.; Turolla, S.; Cirami, R.

    2008-07-01

    The ALMA Common Software (ACS) provides both an application framework and CORBA-based middleware for the distributed software system of the Atacama Large Millimeter Array. Building upon open-source tools such as the JacORB, TAO and OmniORB ORBs, ACS supports the development of component-based software in any of three languages: Java, C++ and Python. Now in its seventh major release, ACS has matured, both in its feature set as well as in its reliability and performance. However, it is only recently that the ALMA observatory's hardware and application software has reached a level at which it can exploit and challenge the infrastructure that ACS provides. In particular, the availability of an Antenna Test Facility(ATF) at the site of the Very Large Array in New Mexico has enabled us to exercise and test the still evolving end-to-end ALMA software under realistic conditions. The major focus of ACS, consequently, has shifted from the development of new features to consideration of how best to use those that already exist. Configuration details which could be neglected for the purpose of running unit tests or skeletal end-to-end simulations have turned out to be sensitive levers for achieving satisfactory performance in a real-world environment. Surprising behavior in some open-source tools has required us to choose between patching code that we did not write or addressing its deficiencies by implementing workarounds in our own software. We will discuss these and other aspects of our recent experience at the ATF and in simulation.

  13. Conteúdo dos criadouros larvais e comportamento de adultos de Toxorhynchites (Lynchiella haemorrhoidalis haemorrhoidalis (Fabricius (Diptera, Culicidae numa floresta de terra-firme da Amazônia central Larval breeding site contents and adult behavior of toxorhynchites (Lynchiella haemorrhoidalis haemorrhoidalis (Fabricius (Diptera, Culicidae in an upland forest of the central amazon

    Directory of Open Access Journals (Sweden)

    Rosa Sá Gomes Hutchings

    1995-01-01

    Full Text Available The natural breeding sites of Toxorhynchites (Lynchiella haemorrhoidalis haemorihoidalis (Fabricius, 1794, in two study areas, were sampled monthly, during a period of one year, in an upland "terra-firme" forest of the Central Amazon. These natural breeding sites, consisting of water filled palm bracts on the ground, contained invertobrates and vertebrates along with palm inflorescences, leaves and twigs. The inhabitants of the non-submersed area of the bracts include Diplopoda, Acarina, Araneae, Pseudoscorpiones, Isopoda, Blattodea, Coleoptera (Carabidae, Curculionidae, Scolytidae, Staphilinidae. Collembola, Dermaptera, Diptera (Cecidomyidae, Drosophilidae, Mycetophilidae, Tipulidae, Hemiptera, Hymenoptera and Trichoptera. The submersed areas of the bracts were inhabited by Oligochaeta, Coleoptera (Dysticidae, Helodidae, Histeridae, Hydrophilidae, Limnebiidae, Diptera (Ceratopogonidae, Chirononiidae, Culicidae, Psychodidae, Stratiomyidae, Syrphidae. Odonata, along with immature Dendrobatidae e Hylidae. The ovipositing, resting and feeding behaviors of T. h. haemorrhoidalis adults are described.

  14. ALMA Observations of Asteroid 3 Juno at 60 Kilometer Resolution

    OpenAIRE

    Partnership, ALMA; Hunter, T.R.; Kneissl, R.; Moullet, A.; Brogan, C. L.; Fomalont, E. B.; Vlahakis, C; Asaki, Y.; Barkats, D.; Dent, W.R.F.; R. Hills; Hirota, A.; Hodge, J. A.; Impellizzeri, C. M. V.; Liuzzo, E.

    2015-01-01

    We present Atacama Large Millimeter/submillimeter Array (ALMA) 1.3 mm continuum images of the asteroid 3 Juno obtained with an angular resolution of 0.042 arcseconds (60 km at 1.97 AU). The data were obtained over a single 4.4 hr interval, which covers 60% of the 7.2 hr rotation period, approximately centered on local transit. A sequence of ten consecutive images reveals continuous changes in the asteroid's profile and apparent shape, in good agreement with the sky projection of the three-dim...

  15. Breve historia del alma en la antigüedad

    OpenAIRE

    Fructuoso, Josa

    2006-01-01

    La psicología como ciencia se erige sobre un concepto tan poco científico como el “alma”, un concepto fundamental en el pensamiento occidental y que, desde su categoría de mito, se inserta en la filosofía, recorriéndola a lo largo de toda su historia. En sus orígenes prefilosóficos y homéricos, el mito del alma es aún un concepto emergente y disperso que, antes de pasar a convertirse en el principio de inmortalidad atrapado en la cárcel mortal del cuerpo, propio de la corrie...

  16. Complementarity of NGST, ALMA, and Far IR Space Observatories

    Science.gov (United States)

    Mather, John C.

    2004-01-01

    The Next Generation Space Telescope (NGST) and the Atacama Large Millimeter Array (ALMA) will both start operations long before a new far IR observatory to follow SIRTF into space can be launched. What will be unknown even after they are operational, and what will a far IR space observatory be able to add? I will compare the telescope design concepts and capabilities and the advertised scientific programs for the projects and attempt to forecast the research topics that will be at the forefront in 2010.

  17. Telomeric repeat-containing RNA (TERRA) constitutes a nucleoprotein component of extracellular inflammatory exosomes.

    Science.gov (United States)

    Wang, Zhuo; Deng, Zhong; Dahmane, Nadia; Tsai, Kevin; Wang, Pu; Williams, Dewight R; Kossenkov, Andrew V; Showe, Louise C; Zhang, Rugang; Huang, Qihong; Conejo-Garcia, José R; Lieberman, Paul M

    2015-11-17

    Telomeric repeat-containing RNA (TERRA) has been identified as a telomere-associated regulator of chromosome end protection. Here, we report that TERRA can also be found in extracellular fractions that stimulate innate immune signaling. We identified extracellular forms of TERRA in mouse tumor and embryonic brain tissue, as well as in human tissue culture cell lines using RNA in situ hybridization. RNA-seq analyses revealed TERRA to be among the most highly represented transcripts in extracellular fractions derived from both normal and cancer patient blood plasma. Cell-free TERRA (cfTERRA) could be isolated from the exosome fractions derived from human lymphoblastoid cell line (LCL) culture media. cfTERRA is a shorter form (∼200 nt) of cellular TERRA and copurifies with CD63- and CD83-positive exosome vesicles that could be visualized by cyro-electron microscopy. These fractions were also enriched for histone proteins that physically associate with TERRA in extracellular ChIP assays. Incubation of cfTERRA-containing exosomes with peripheral blood mononuclear cells stimulated transcription of several inflammatory cytokine genes, including TNFα, IL6, and C-X-C chemokine 10 (CXCL10) Exosomes engineered with elevated TERRA or liposomes with synthetic TERRA further stimulated inflammatory cytokines, suggesting that exosome-associated TERRA augments innate immune signaling. These findings imply a previously unidentified extrinsic function for TERRA and a mechanism of communication between telomeres and innate immune signals in tissue and tumor microenvironments. PMID:26578789

  18. Telomeric repeat-containing RNA (TERRA) constitutes a nucleoprotein component of extracellular inflammatory exosomes

    Science.gov (United States)

    Wang, Zhuo; Deng, Zhong; Dahmane, Nadia; Tsai, Kevin; Wang, Pu; Williams, Dewight R.; Kossenkov, Andrew V.; Showe, Louise C.; Zhang, Rugang; Huang, Qihong; Conejo-Garcia, José R.; Lieberman, Paul M.

    2015-01-01

    Telomeric repeat-containing RNA (TERRA) has been identified as a telomere-associated regulator of chromosome end protection. Here, we report that TERRA can also be found in extracellular fractions that stimulate innate immune signaling. We identified extracellular forms of TERRA in mouse tumor and embryonic brain tissue, as well as in human tissue culture cell lines using RNA in situ hybridization. RNA-seq analyses revealed TERRA to be among the most highly represented transcripts in extracellular fractions derived from both normal and cancer patient blood plasma. Cell-free TERRA (cfTERRA) could be isolated from the exosome fractions derived from human lymphoblastoid cell line (LCL) culture media. cfTERRA is a shorter form (∼200 nt) of cellular TERRA and copurifies with CD63- and CD83-positive exosome vesicles that could be visualized by cyro-electron microscopy. These fractions were also enriched for histone proteins that physically associate with TERRA in extracellular ChIP assays. Incubation of cfTERRA-containing exosomes with peripheral blood mononuclear cells stimulated transcription of several inflammatory cytokine genes, including TNFα, IL6, and C-X-C chemokine 10 (CXCL10) Exosomes engineered with elevated TERRA or liposomes with synthetic TERRA further stimulated inflammatory cytokines, suggesting that exosome-associated TERRA augments innate immune signaling. These findings imply a previously unidentified extrinsic function for TERRA and a mechanism of communication between telomeres and innate immune signals in tissue and tumor microenvironments. PMID:26578789

  19. BOOK REVIEW: European Perceptions of Terra Australis

    Science.gov (United States)

    Sterken, Christiaan

    2012-12-01

    Terra Australis - the southern land - has been one of the most widespread concepts in European geography from the sixteenth to the eighteenth century. This book comprises a set of 14 interdisciplinary scholarly contributions that deal with personal perceptions of Terra Australis by cartographers and explorers, and with putting these perceptions in their historical and cultural environments. This book seems, at a first glance, to be very remote from astronomy - and even from the history of astronomy - however, as it also offers an excellent background to Captain James Cook's second voyage to observe the 1769 transit of Venus from Tahiti, it definitely is a work of truly interdisciplinary character. Cook's voyages, in fact, became a model in which key scientists of many nationalities and disciplines traveled together on ships. In these voyages, art, science, technology and political power were centralised and united. The chapters range across history, the visual arts, literature, popular culture, technology, politics and science. Issues of scientific reasoning are raised in the description of how people did think about the south before there even existed a perception of the unknown land - quite comparable to how ancient and early-modern astronomers had their thought about cosmology even before any observational data were available. Several early map systems - like the zonal and T-O maps (medieval world maps with the letter T inside an O representing the lands inside a circle of oceans) - are described, and the description of Roman geography shows the amazing fact that theory and practice were not unified, and existed independently of each other insofar that a real paradox between theory and observation had persisted for a very long time. The maps and charts also exemplify the long-lasting consequences of early modern copy-paste practice: navigators copied original sketch charts of coasts that were previously unknown to them, herewith committing many translation and

  20. Geological Time on Display in Arabia Terra

    Science.gov (United States)

    2002-01-01

    [figure removed for brevity, see original site] This scene from the dust covered plains of eastern Arabia Terra portrays a range of geological time. Three craters at the center of the image capture some of this range. Two have the classic bowl-shape of small, relatively recent craters while the one just to the north has seen much more history. Its rim has been scoured away by erosion and its floor has been filled in by material likely of a sedimentary nature. The channels that wind through the scene may be the oldest features present while the relatively dark streaks scattered about could have been produced in the past few years or even months as winds remove a layer of dust to reveal darker material below.Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.

  1. Transferências orbitais dentro do modelo quase bicircular no sistema Terra-Lua-Sol

    Science.gov (United States)

    Corrêa, A. A.; de Almeida Prado, A. F. B.; Stuchi, T. J.; Beaugé, C.

    2003-08-01

    O problema quase bicircular planar consiste na determinação da dinâmica de um corpo, de massa desprezível, que se move sob o campo gravitacional de três corpos. No caso estudado, o quarto corpo é considerado um satélite artificial e os demais são a Terra, a Lua e o Sol, formando o sistema de três corpos. Este modelo permite a construção de uma hamiltoniana similar a do problema restrito de três corpos (PRTC), incluindo termos periódicos não autônomos, provenientes da presença do Sol, portanto pode ser entendido como uma perturbação ao PRTC. Suas órbitas periódicas aparecem isoladas e possuem o mesmo período solar. Os pontos de equilíbrio colineares possuem o mesmo caráter de estabilidade linear dos pontos lagrangianos (L1, L2 e L3) do PRTC, sendo do tipo sela x centro x centro, instável na direção x e estáveis nas direções y e z. As órbitas periódicas tridimensionais ao redor do ponto colinear é chamada órbita Halo. O objetivo deste trabalho é determinar órbitas de transferências de baixo consumo de combustível para um veículo espacial partindo de uma órbita de estacionamento ao redor da Terra em direção a uma órbita 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 órbita de estacionamento, um ponto final na órbita halo e o tempo de transferência, deseja-se obter a trajetória que liga estes dois pontos e que minimize os incrementos de velocidade do veículo. Essas transferências são realizadas baseadas no método de Lambert e analisadas de modo a fornecer um baixo consumo. Posteriormente, é feita uma comparação de consumo com as órbitas de transferência equivalentes do PRTC.

  2. Effect of MODIS Terra radiometric calibration improvements on Collection 6 Deep Blue aerosol products: Validation and Terra/Aqua consistency

    Science.gov (United States)

    Sayer, A. M.; Hsu, N. C.; Bettenhausen, C.; Jeong, M.-J.; Meister, G.

    2015-12-01

    The Deep Blue (DB) algorithm's primary data product is midvisible aerosol optical depth (AOD). DB applied to Moderate Resolution Imaging Spectroradiometer (MODIS) measurements provides a data record since early 2000 for MODIS Terra and mid-2002 for MODIS Aqua. In the previous data version (Collection 5, C5), DB production from Terra was halted in 2007 due to sensor degradation; the new Collection 6 (C6) has both improved science algorithms and sensor radiometric calibration. This includes additional calibration corrections developed by the Ocean Biology Processing Group to address MODIS Terra's gain, polarization sensitivity, and detector response versus scan angle, meaning DB can now be applied to the whole Terra record. Through validation with Aerosol Robotic Network (AERONET) data, it is shown that the C6 DB Terra AOD quality is stable throughout the mission to date. Compared to the C5 calibration, in recent years the RMS error compared to AERONET is smaller by ˜0.04 over bright (e.g., desert) and ˜0.01-0.02 over darker (e.g., vegetated) land surfaces, and the fraction of points in agreement with AERONET within expected retrieval uncertainty higher by ˜10% and ˜5%, respectively. Comparisons to the Aqua C6 time series reveal a high level of correspondence between the two MODIS DB data records, with a small positive (Terra-Aqua) average AOD offset radiometric calibration efforts and that the C6 MODIS Terra DB AOD data remain stable (to better than 0.01 AOD) throughout the mission to date, suitable for quantitative scientific analyses.

  3. La ciencia del alma en IBN Bayya (Avempace

    Directory of Open Access Journals (Sweden)

    Lomba, Joaquín

    2007-01-01

    Full Text Available Não possui resumo em portugês El objetivo de este trabajo es la interpretación de del más importante aspecto de la filosofía de Ibn Bayya (Avempace a base de la lectura de su Kitab al nafs, primer comentario del De anima de Aristóteles en Occidente. Este estudio sobre el alma es, para Avempace, constituye la principal ciencia porque sin el análisis de la propia alma es imposible conocer el resto de las ciencias y del mundo. Este autor, en todas sus obras encentra el ideal del filósofo y del hombre sabio, sobre todo, en la progresiva desmaterialización de toda su vida. Este objetivo se obtiene mediante el transcendeer de tres formas de vida, concretamente, las formas materiales, el primer nivel espiritual y, por fin, el segundo nivel espiritual. La culminación de este itinerario es alcanzar el segundo nivel espiritual, concretamente, la unión con el Intelecto Agente mediante un misticismo espiritual o «amor Dei intellectualis». Los materiales básicos de esta filosofía están conteniddos en este comentario al aristotélico al De anima. $$bspa

  4. ALMA Observations of HD141569's Circumstellar Disk

    CERN Document Server

    White, J A; Hughes, A M; Flaherty, K M; Ford, E; Wilner, D; Corder, S; Payne, M

    2016-01-01

    We present ALMA band 7 (345 GHz) continuum and $^{12}$CO(J = 3-2) observations of the circumstellar disk surrounding HD141569. At an age of about 5 Myr, the disk has a complex morphology that may be best interpreted as a nascent debris system with gas. Our $870\\rm~\\mu m$ ALMA continuum observations resolve a dust disk out to approximately $ 56 ~\\rm au$ from the star (assuming a distance of 116 pc) with $0."38$ resolution and $0.07 ~ \\rm mJy~beam^{-1}$ sensitivity. We measure a continuum flux density for this inner material of $3.8 \\pm 0.4 ~ \\rm mJy$ (including calibration uncertainties). The $^{12}$CO(3-2) gas is resolved kinematically and spatially from about 30 to 210 au. The integrated $^{12}$CO(3-2) line flux density is $15.7 \\pm 1.6~\\rm Jy~km~s^{-1}$. We estimate the mass of the millimeter debris and $^{12}$CO(3-2) gas to be $\\gtrsim0.04~\\rm M_{\\oplus}$ and $\\sim2\\times 10^{-3}~\\rm M_{\\oplus}$, respectively. If the millimeter grains are part of a collisional cascade, then we infer that the inner disk ($&...

  5. Simulating ALMA Observations of High-Redshift Submillimeter Galaxies

    Science.gov (United States)

    Carilli, Michael; Wagg, J.

    2007-12-01

    Until now, the coarse angular resolution of single-dish submm/mm telescopes has limited the depth of extragalactic surveys through confusion noise, meaning that only 20-30% of the 850 micron background can be resolved. However, the majority of this population should have flux densities of 1 mJy or fainter, and so either cannot be resolved or would require prohibitively long integration times to conduct surveys with existing interferometers. This will change with the advent of the Atacama Large Millimeter Array (ALMA); beginning operation within the next decade, it will provide an order of magnitude increase in sensitivity over that of current interferometers. To better plan for future surveys with this facility, I have prepared a set of simulated 850 micron and 1 mm maps covering 16 square arcminutes with an angular resolution of 1 arcsecond. The input models used to create these simulations are based on our current constraints on the 850 micron and 1 mm number counts, as well as a heuristic model which assumes an evolving 60 micron IRAS luminosity function. This work shows how ALMA will constrain the number counts well below the sub-mJy level. Research was conducted as part of the National Science Foundation's Research Experience for Undergraduates program.

  6. ALMA Observations of Asteroid 3 Juno at 60 Kilometer Resolution

    CERN Document Server

    Partnership, ALMA; Kneissl, R; Moullet, A; Brogan, C L; Fomalont, E B; Vlahakis, C; Asaki, Y; Barkats, D; Dent, W R F; Hills, R; Hirota, A; Hodge, J A; Impellizzeri, C M V; Liuzzo, E; Lucas, R; Marcelino, N; Matsushita, S; Nakanishi, K; Perez, L M; Phillips, N; Richards, A M S; Toledo, I; Aladro, R; Broguiere, D; Cortes, J R; Cortes, P C; Dhawan, V; Espada, D; Galarza, F; Garcia-Appadoo, D; Guzman-Ramirez, L; Hales, A S; Humphreys, E M; Jung, T; Kameno, S; Laing, R A; Leon, S; Marconi, G; Nikolic, B; Nyman, L -A; Radiszcz, M; Remijan, A; Rodon, J A; Sawada, T; Takahashi, S; Tilanus, R P J; Vilaro, B Vila; Watson, L C; Wiklind, T; de Gregorio, I; Di Francesco, J; Mangum, J; Francke, H; Gallardo, J; Garcia, J; Gonzalez, S; Hill, T; Kaminski, T; Kurono, Y; Lopez, C; Morales, F; Plarre, K; Randall, S; van kempen, T; Videla, L; Villard, E; Andreani, P; Hibbard, J E; Tatematsu, K

    2015-01-01

    We present Atacama Large Millimeter/submillimeter Array (ALMA) 1.3 mm continuum images of the asteroid 3 Juno obtained with an angular resolution of 0.042 arcseconds (60 km at 1.97 AU). The data were obtained over a single 4.4 hr interval, which covers 60% of the 7.2 hr rotation period, approximately centered on local transit. A sequence of ten consecutive images reveals continuous changes in the asteroid's profile and apparent shape, in good agreement with the sky projection of the three-dimensional model of the Database of Asteroid Models from Inversion Techniques. We measure a geometric mean diameter of 259pm4 km, in good agreement with past estimates from a variety of techniques and wavelengths. Due to the viewing angle and inclination of the rotational pole, the southern hemisphere dominates all of the images. The median peak brightness temperature is 215pm13 K, while the median over the whole surface is 197pm15 K. With the unprecedented resolution of ALMA, we find that the brightness temperature varies ...

  7. Measuring protoplanetary disk gas surface density profiles with ALMA

    CERN Document Server

    McPartland, Jonathan P Williams Conor

    2016-01-01

    The gas and dust are spatially segregated in protoplanetary disks due to the vertical settling and radial drift of large grains. A fuller accounting of the mass content and distribution in disks therefore requires spectral line observations. We extend the modeling approach presented in Williams & Best (2014) to show that gas surface density profiles can be measured from high fidelity 13CO integrated intensity images. We demonstrate the methodology by fitting ALMA observations of the HD 163296 disk to determine a gas mass, Mgas = 0.048 solar masse, and accretion disk characteristic size Rc = 213au and gradient gamma = 0.39. The same parameters match the C18O 2--1 image and indicates an abundance ratio [13CO]/[C18O] of 700 independent of radius. To test how well this methodology can be applied to future line surveys of smaller, lower mass T Tauri disks, we create a large 13CO 2--1 image library and fit simulated data. For disks with gas masses 3-10 Jupiter masses at 150pc, ALMA observations with a resolutio...

  8. Probing Dust Settling in Proto-planetary Disks with ALMA

    CERN Document Server

    Boehler, Y; Guilloteau, S; Piétu, V; 10.1093/mnras/stt278

    2013-01-01

    Investigating the dynamical evolution of dust grains in proto-planetary disks is a key issue to understand how planets should form. We identify under which conditions dust settling can be constrained by high angular resolution observations at mm wavelengths, and which observational strategies are suited for such studies. Exploring a large range of models, we generate synthetic images of disks with different degrees of dust settling, and simulate high angular resolution (~ 0.05-0.3") ALMA observations of these synthetic disks. The resulting data sets are then analyzed blindly with homogeneous disk models (where dust and gas are totally mixed) and the derived disk parameters are used as tracers of the settling factor. Our dust disks are partially resolved by ALMA and present some specific behaviors on radial and mainly vertical directions, which can be used to quantify the level of settling. We find out that an angular resolution better than or equal to ~ 0.1" (using 2.3 km baselines at 0.8mm) allows us to cons...

  9. Possibility of Terahertz Observations at the ALMA site

    CERN Document Server

    Matsushita, Satoki

    2011-01-01

    Observational rates under terahertz (THz) opacities less than 3.0 and 2.0 at the Atacama Large Millimeter/submillimeter Array (ALMA) site have been calculated using the 225 GHz tipping radiometer monitoring data and the opacity correlation between 225 GHz and THz opacities. The observational rate with THz opacity condition less than 3.0 is 12.4% in a year, and in winter (November - April) it is about twice higher than in summer (May - October). This observational rate shows a large sinusoidal annual variation, and it seems to have relation with the El Ni\\~no and La Ni\\~na phenomena; the La Ni\\~na years tend to have high observational rates, but the El Ni\\~no years show low rates. On the other hand, the observational rate with the THz opacity condition less than 2.0 is only 1.9%, and no obvious annual and seasonal variations are observed. This indicates that THz observations under low opacity condition of less than 2.0 at the ALMA site are very difficult to be performed.

  10. ALMA images of discs: are all gaps carved by planets?

    CERN Document Server

    Gonzalez, Jean-François; Maddison, Sarah T; Pinte, Christophe; Ménard, François

    2015-01-01

    Protoplanetary discs are now routinely observed and exoplanets, after the numerous indirect discoveries, are starting to be directly imaged. To better understand the planet formation process, the next step is the detection of forming planets or of signposts of young planets still in their disc, such as gaps. A spectacular example is the ALMA science verification image of HL Tau showing numerous gaps and rings in its disc. To study the observability of planet gaps, we ran 3D hydrodynamical simulations of a gas and dust disc containing a 5 M J gap-opening planet and characterised the spatial distribution of migrating, growing and fragmenting dust grains. We then computed the corresponding synthetic images for ALMA. For a value of the dust fragmentation threshold of 15 m s --1 for the collisional velocity, we identify for the first time a self-induced dust pile up in simulations taking fragmentation into account. This feature, in addition to the easily detected planet gap, causes a second apparent gap that could...

  11. ALMA Observations of the Active Nucleus of NGC 7469

    CERN Document Server

    Izumi, Takuma; Aalto, Susanne; Doi, Akihiro; Espada, Daniel; Fathi, Kambiz; Harada, Nanase; Hatsukade, Bunyo; Hattori, Takashi; Hsieh, Pei-Ying; Ikarashi, Soh; Imanishi, Masatoshi; Iono, Daisuke; Ishizuki, Sumio; Krips, Melanie; Martín, Sergio; Matsushita, Satoki; Meier, David S; Nagai, Hiroshi; Nakai, Naomasa; Nakajima, Taku; Nakanishi, Kouichiro; Nomura, Hideko; Regan, Michael W; Schinnerer, Eva; Sheth, Kartik; Takano, Shuro; Tamura, Yoichi; Terashima, Yuichi; Tosaki, Tomoka; Turner, Jean L; Umehata, Hideki; Wiklind, Tommy

    2015-01-01

    We present ALMA Cycle 1 observations of the central kpc region of the luminous type-1 Seyfert galaxy NGC 7469 with unprecedented high resolution (0.5$"$ $\\times$ 0.4$"$ = 165 pc $\\times$ 132 pc) at submillimeter wavelengths. Utilizing the wide-bandwidth of ALMA, we simultaneously obtained HCN(4-3), HCO$^+$(4-3), CS(7-6), and partially CO(3-2) line maps, as well as the 860 $\\mu$m continuum. The region consists of the central $\\sim$ 1$"$ component and the surrounding starburst ring with a radius of $\\sim$ 1.5$"$-2.5$"$. Several structures connect these components. Except for CO(3-2), these dense gas tracers are significantly concentrated towards the central $\\sim$ 1$"$, suggesting their suitability to probe the nuclear regions of galaxies. Their spatial distribution resembles well those of centimeter and mid-infrared continuum emissions, but it is anti-correlated with the optical one, indicating the existence of dust obscured star formation. The integrated intensity ratios of HCN(4-3)/HCO$^+$(4-3) and HCN(4-3)/...

  12. Business Intelligence Applied to the ALMA Software Integration Process

    Science.gov (United States)

    Zambrano, M.; Recabarren, C.; González, V.; Hoffstadt, A.; Soto, R.; Shen, T.-C.

    2012-09-01

    Software quality assurance and planning of an astronomy project is a complex task, specially if it is a distributed collaborative project such as ALMA, where the development centers are spread across the globe. When you execute a software project there is much valuable information about this process itself that you might be able to collect. One of the ways you can receive this input is via an issue tracking system that will gather the problem reports relative to software bugs captured during the testing of the software, during the integration of the different components or even worst, problems occurred during production time. Usually, there is little time spent on analyzing them but with some multidimensional processing you can extract valuable information from them and it might help you on the long term planning and resources allocation. We present an analysis of the information collected at ALMA from a collection of key unbiased indicators. We describe here the extraction, transformation and load process and how the data was processed. The main goal is to assess a software process and get insights from this information.

  13. O caminho da terra: revisitando a história do MST no Pontal do Paranapanema - SP - desde uma ótica psicopolítica Los caminos de la tierra: reconstruyendo la memoria política del MST en el Pontal do Paranapanema - São Paulo Pathways to the land: recovering a political memory of MST - Brazil's landless workers' movement in western São Paulo, Brazil

    Directory of Open Access Journals (Sweden)

    Alessandro Soares da Silva

    2010-03-01

    Full Text Available No presente artigo pretendemos recuperar aspectos psicopolíticos da luta pela terra empreendida pelo MST no Pontal do Paranapanema - SP, conhecida região de conflitos fundiários. Este trabalho resulta de uma ampla revisão bibliográfica acerca do tema feita com o intuito de compreender os processos de construção deste movimento social e de resgatar mais do que os fatos históricos vividos por ele. Resgatar essa história contribui para a construção de uma memória coletiva destes homens e mulheres incógnitos; fazê-lo é conceder-lhes voz, visibilidade, é reconhecê-los e reconhecê-las como sujeitos políticos, mesmo que aqui apenas o façamos de maneira indireta a partir de nossos estudos e de outros que contribuíram para visibilizar a luta travada no campo nessa região paulista.En el presente artículo, pretendemos recuperar aspectos psicopolíticos de la lucha del MST por la tierra en la región del Pontal do Paranapanema - SP - Brasil. Esa es una conocida región de conflictos rurales en el Estado de São Paulo. Este trabajo resulta de una amplia revisión bibliográfica acerca del tema con el intuito de comprender los procesos de construcción de este movimiento social y de rescatar los fatos históricos vividos por él y contribuir para que también pues recatar a memoria colectiva de estos hombres y mujeres incógnitos/as; hacerlo es reconocerles como sujetos políticos, aunque de modo indirecto y partiendo de nuestros trabajos y de otros que contribuyen para visibilizar la lucha trabada en el Campo paulista.This paper unveils the political psychology of the shapping of a collective memory in the MST - Brazil's Landless Workers' Movement in the western corner of the state of Sao Paulo in Brazil, a region named Pontal do Paranapanema, known for its conflicts between landlords/large estate owners and landless rural workers. The paper results from an extensive review on the subject and highlights the underlying dinamics in the

  14. Astronomers Break Ground on Atacama Large Millimeter Array (ALMA) - World's Largest Millimeter Wavelength Telescope

    Science.gov (United States)

    2003-11-01

    Scientists and dignitaries from Europe, North America and Chile are breaking ground today (Thursday, November 6, 2003) on what will be the world's largest, most sensitive radio telescope operating at millimeter wavelengths . ALMA - the "Atacama Large Millimeter Array" - will be a single instrument composed of 64 high-precision antennas located in the II Region of Chile, in the District of San Pedro de Atacama, at the Chajnantor altiplano, 5,000 metres above sea level. ALMA 's primary function will be to observe and image with unprecedented clarity the enigmatic cold regions of the Universe, which are optically dark, yet shine brightly in the millimetre portion of the electromagnetic spectrum. The Atacama Large Millimeter Array (ALMA) is an international astronomy facility. ALMA is an equal partnership between Europe and North America, in cooperation with the Republic of Chile, and is funded in North America by the U.S. National Science Foundation (NSF) in cooperation with the National Research Council of Canada (NRC), and in Europe by the European Southern Observatory (ESO) and Spain. ALMA construction and operations are led on behalf of North America by the National Radio Astronomy Observatory (NRAO), which is managed by Associated Universities, Inc. (AUI), and on behalf of Europe by ESO. " ALMA will be a giant leap forward for our studies of this relatively little explored spectral window towards the Universe" , said Dr. Catherine Cesarsky , Director General of ESO. "With ESO leading the European part of this ambitious and forward-looking project, the impact of ALMA will be felt in wide circles on our continent. Together with our partners in North America and Chile, we are all looking forward to the truly outstanding opportunities that will be offered by ALMA , also to young scientists and engineers" . " The U.S. National Science Foundation joins today with our North American partner, Canada, and with the European Southern Observatory, Spain, and Chile to prepare

  15. Caracterização física e química de terras pretas arqueológicas e de solos não antropogênicos na região de Manicoré, Amazonas.

    OpenAIRE

    Campos, Milton César Costa; Santos, Luis Antonio Coutrim dos; Silva, Douglas Marcelo Pinheiro da; Mantovanelli, Bruno Campos; Soares, Marcelo Dayron Rodrigues

    2012-01-01

    Os solos predominantes na região Amazônica pertencem à classe dos Latossolos e Argissolos, caracterizado por seu alto grau de intemperismo e baixa fertilidade natural, em contraste, ocorrem às terras pretas arqueológicas com elevada fertilidade natural e alto teor de matéria orgânica. Objetivou-se com este estudo caracterizar quanto aos atributos físicos e químicos as terras pretas arqueológicas e os solos não antropogênicos da região de Manicoré, AM. Foram amostrados quatro sítios de Terras ...

  16. Caracterização física e química de terras pretas arqueológicas e de solos não antropogênicos na região de Manicoré, Amazonas = Physical and chemical characterization of archaeological dark earths and nonanthropogenic soils the Manicore region, Amazon.

    OpenAIRE

    Marcelo Dayron Rodrigues Soares; Bruno Campos Mantovanelli; Douglas Marcelo Pinheiro da Silva; Milton César Costa Campos; Luís Antônio Coutrim dos Santos

    2012-01-01

    Os solos predominantes na região Amazônica pertencem à classe dos Latossolos e Argissolos, caracterizado por seu alto grau de intemperismo e baixa fertilidade natural, em contraste, ocorrem às terras pretas arqueológicas com elevada fertilidade natural e alto teor de matéria orgânica. Objetivou-se com este estudo caracterizar quanto aos atributos físicos e químicos as terras pretas arqueológicas e os solos não antropogênicos da região de Manicoré, AM. Foram amostrados quatro sítios de Terras ...

  17. Da deriva continental de Wegener (1912) à moderna geodinâmica global

    OpenAIRE

    Dias, Rui

    2012-01-01

    Alfred Wegener formalizou o conceito de deriva continental (1912-1915) com base na mobilidade da superfície sólida da Terra; ele teve precursores mas, como meteorologista, conhecendo os movimentos rápidos dos fluidos na atmosfera, tinha as bases e a motivação necessárias para extrapolar esta mobilidade para o fluxo lento da superfície sólida terrestre, um salto fenomenológico maior nas Ciências da Terra. A tectónica de placas (1962-1969) progrediu a partir do conhecimento das bacias oceân...

  18. Prototype Implementation of Web and Desktop Applications for ALMA Science Verification Data and the Lessons Learned

    OpenAIRE

    Eguchi, Satoshi; Kawasaki, Wataru; Shirasaki, Yuji; Komiya, Yutaka; Kosugi, George; Ohishi, Masatoshi; Mizumoto, Yoshihiko

    2012-01-01

    ALMA is estimated to generate TB scale data during only one observation; astronomers manage to identify which part of the data they are really interested in. Now we have been developing new GUI software for this purpose utilizing the VO interface: ALMA Web Quick Look System (ALMAWebQL) and ALMA Desktop Application (Vissage). The former is written in JavaScript and HTML5 generated from Java codes by Google Web Toolkit, and the latter is in pure Java. An essential point of our approach is how t...

  19. The Science Case for ALMA Band 2 and Band 2+3

    CERN Document Server

    Fuller, G A; Beltran, M; Casasola, V; Caselli, P; Cicone, C; Costagliola, F; De Breuck, C; Hunt, L; Jimenez-Serra, I; Laing, R; Longmore, S; Massardi, M; Paladino, R; Ramstedt, S; Richards, A; Testi, L; Vergani, D; Viti, S; Wagg, J

    2016-01-01

    We discuss the science drivers for ALMA Band 2 which spans the frequency range from 67 to 90 GHz. The key science in this frequency range are the study of the deuterated molecules in cold, dense, quiescent gas and the study of redshifted emission from galaxies in CO and other species. However, Band 2 has a range of other applications which are also presented. The science enabled by a single receiver system which would combine ALMA Bands 2 and 3 covering the frequency range 67 to 116 GHz, as well as the possible doubling of the IF bandwidth of ALMA to 16 GHz, are also considered.

  20. Desigualdade de renda na agricultura: o efeito da posse da terra

    OpenAIRE

    Marlon Gomes Ney; Rodolfo Hoffmann

    2003-01-01

    This paper analyses the effects of agricultural income determinants, in particular of human capital and physical capital. One of its purposes is to evaluate the possible overestimation of the effect of education in income equations that do not include any measure of wealth. Besides all the variables usually considered in earnings equations adjusted to the primary sector, we have included the area of the agricultural enterprise (as a proxy for wealth). The results show the enormous effect of a...

  1. Estratégia para amostragem da população e da paisagem em pesquisas sobre uso e cobertura da terra Estrategia para muestreo de la población y del paisaje en investigaciones sobre uso y cobertura de la tierra Strategy for a sampling of the population and the land structure in studies on the use, covering and domestic units of the land

    Directory of Open Access Journals (Sweden)

    Álvaro de Oliveira D'Antona

    2007-12-01

    Full Text Available Este artigo apresenta a estratégia usada em uma pesquisa realizada em Santarém - PA, em 2003, para amostrar lotes delimitados em mapas do Incra e as unidades domésticas ali existentes, de modo a capturar as mudanças populacionais e ambientais na escala das propriedades rurais e na da região. A amostra foi selecionada conforme a distribuição dos lotes ao longo de quatro eixos rodoviários relacionados a distintos processos de ocupação. Em cada um dos eixos foram selecionadas aleatoriamente 20 células com 9km². Em cada uma delas, foram selecionados aleatoriamente os lotes que deveriam ser visitados. No campo, entrevistaram-se todas as unidades domésticas existentes em cada um dos lotes selecionados. Descreve-se a amostragem por segmentação sucessiva da área de estudo, destacando-se como os dados resultantes podem ser usados diferentemente nas escalas das unidades domésticas, dos lotes e da região, conforme as questões e variáveis de interesse.Este artículo presenta la estrategia usada en una investigación realizada en Santarém - PA, en 2003, para mostrar lotes delimitados en mapas del Incra [Instituto Nacional de Colonización y Reforma Agraria] y las unidades domésticas allí existentes, de modo de captar los cambios poblacionales y ambientales en la escala de las propiedades rurales y en la de la región. La muestra fue seleccionada de acuerdo a la distribución de los lotes a lo largo de cuatro ejes viales relacionados a distintos procesos de ocupación. En cada uno de los ejes fueron seleccionadas aleatoriamente 20 células con 9km2. En cada una de ellas, fueron seleccionados aleatoriamente los lotes que deberían ser visitados. En el área establecida, se entrevistaron todas las unidades domésticas existentes en cada uno de los lotes seleccionados. Se describe el muestreo por segmentación sucesiva del área de estudio, destacándose, como los datos resultantes pueden ser usados de forma diferente en las escalas de las

  2. Terra firma-forme dermatosis: Case Series and dermoscopic features.

    Science.gov (United States)

    Abdel-Razek, Moheb M; Fathy, Hanan

    2015-10-01

    Terra firma-forme dermatosis (TFFD) is characterized by dirt-like skin lesions that disappear after rubbing with alcohol. We describe the dermoscopic features of TFFD before and after alcohol swabbing in six patients. All patients showed similar dermoscopic appearance with large polygonal plate-like brown scales arranged together giving a mosaic pattern. These features disappear completely after isopropyl alcohol swabbing of the lesions. In conclusion dermoscopy can assist in the evaluation of terra firma-forme dermatosis and the dermoscopic evaluation of other dirty dermatoses is recommended in the future to compare findings with TFFD. PMID:26632811

  3. Cócs. Hallmark of the Terra Alta

    OpenAIRE

    Maria Del Loreto Meix

    2004-01-01

    This article looks at the traditional cake making in the Terra Alta (Catalonien) area linked to festivities, and in particular the pastries usually made. In this area the pastries are known as cócs, a word common to Terra Alta and the neighbouring districts of Ribera d'Ebre and the Priorat. Locally produced mistelle, sweet or rancid wine is served with the pastries. Nowadays, the bakeries and cake makers in the area's towns and villages also produce traditionally crafted products, tha...

  4. TRABALHADORAS RURAIS E LUTA PELA TERRA: INTERLOCUÇÃO ENTRE GÊNERO, TRABALHO E TERRITÓRIO

    OpenAIRE

    María Franco Garcia

    2011-01-01

    A construção de relações de gênero nos territórios de luta pela terra (assentamentos e acampamentos), dos trabalhadores e trabalhadoras rurais no Brasil, só pode ser compreendida a partir da processualidade social que os define. As funções sociais das trabalhadoras acampadas mudam uma vez que se transformam em assentadas, o que repercute diretamente na redução do seu espaço político e social. A preocupação que permeia esta interlocução radica na necessidade de desvendar processos estruturais ...

  5. Dieta de Micoureus demerarae (Thomas (Mammalia, Didelphidae associada às florestas contíguas de mangue e terra firme em Bragança, Pará, Brasil Diet of Micoreus demerarae (Thomas (Mammalia, Didelphidae associated with contiguous forests of mangrove and terra firme in Bragança, Pará, Brazil

    Directory of Open Access Journals (Sweden)

    Marcus E. B. Fernandes

    2006-12-01

    Full Text Available A dieta de Micoureus demerarae (Thomas, 1905 foi estudada em bosques de mangue e terra firme através de amostras estomacais e fecais. O número de indivíduos capturados foi inversamente proporcional à disponibilidade de frutos e insetos, sendo Coleoptera e Hemiptera as ordens de artrópodes mais consumidos e Passifloraceae e Arecaceae os frutos mais ingeridos. Desse modo, tanto a maior variabilidade de frutos como a alta produção destes durante a estação seca, parecem explicar o aumento da captura desses animais nos bosques de terra firme, dos quais são originalmente provenientes. Os itens alimentares sugerem que esta espécie possui uma dieta do tipo onívora, independentemente da sazonalidade ou distribuição dos recursos disponíveis.The diet of Micoureus demerarae (Thomas, 1905 was studied in mangrove and terra firme stands by using stomachal and faecal samples. The number of captured individuals was inversely proportional to availability of fruits and insects, being Coleoptera and Hemiptera the most consumed arthropod orders and Passifloraceae and Arecaceae the most ingested fruits. Thus, either fruits variability or their high yield during the dry season seem to explain the increase of captured animals in the terra firme stands, where they originally come from. The food items suggest that this species has an omnivorous diet, independently of the seasonality or distribution of available resources.

  6. The Millimeter Astronomy Legacy Team 90 GHz Survey (MALT90) and ALMA

    CERN Document Server

    Foster, Jonathan B; Jackson, James M; Longmore, Steve N; Whitaker, Scott; Hoq, Sadia

    2013-01-01

    ALMA will revolutionize our understanding of star formation within our galaxy, but before we can use ALMA we need to know where to look. The Millimeter Astronomy Legacy Team 90 GHz (MALT90) Survey is a large international project to map the molecular line emission of over 2,000 dense clumps in the Galactic plane. MALT90 serves as a pathfinder for ALMA, providing a large public database of dense molecular clumps associated with high-mass star formation. In this proceedings, we describe the survey parameters and share early science highlights from the survey, including (1) a comparison between galactic and extragalactic star formation relations, (2) chemical trends in MALT90 clumps, (3) the distribution of high-mass star formation in the Milky Way, and (4) a discussion of the Brick, the target of successful ALMA Cycle 0 and Cycle 1 proposals.

  7. Measuring the Distribution and Excitation of Cometary Volatiles Using ALMA

    Science.gov (United States)

    Charnley, S. B.; Cordiner, M. A.; Remijan, A. J.; Boissier, J.; Milam, S. N.; Mumma, M. J.; Villanueva, G.; Paganini, L.; Bockelée-Morvan, D.; Biver, N.; Kuan, Y.-J.; Chuang, Y.-L.; Lis, D. C.; Crovisier, J.; Coulson, I.; Minniti, D.

    2015-12-01

    We present measurements of spatially and spectrally resolved CH3OH emission from the coma of comet C/2012 K1 (PanSTARRS) observed using the Atacama Large Millimeter/submillimeter Array (ALMA) in June 2014. The CH3OH distribution is centrally peaked, with a spatial profile consistent with production from the sublimation of ices from the nucleus. From the detection of seven strong CH3OH lines in the J=7-6 band, the line-of-sight average rotational excitation temperature (Trot) is derived as a function of distance across the coma. At the CH3OH peak, we find Trot=92±6 K, falling to about 40 K at a distance of 1000 km.

  8. Fernando Vallejo,  Almas en pena chapolas negras

    Directory of Open Access Journals (Sweden)

    Daniel García

    2012-05-01

    Full Text Available En uno de sus aforismos Ciorán se pregunta por qué no ha sido un motivo de suicidio para nadie el solo hecho de pensar que otro escribiría su biografía. Fernando Vallejo, por su parte, reconoce la miseria de este género espurio y no puede imaginarse un oficio peor que el de los biógrafos, « metidos en archivos y bibliotecas entre papeles polvosos, viejos, viviendo las infamias del pasado », más muertos que los muertos. La anécdota que abre Almas en pena chapolas negras, la biografía de José A...

  9. The Early ALMA View of the FU Ori Outburst System

    Science.gov (United States)

    Hales, A. S.; Corder, S. A.; Dent, W. R. D.; Andrews, S. M.; Eisner, J. A.; Cieza, L. A.

    2015-10-01

    We have obtained ALMA Band 7 observations of the FU Ori outburst system at a 0.″6 × 0.″5 resolution to measure the link between the inner disk instability and the outer disk through submillimeter continuum and molecular line observations. Our observations detect continuum emission that can be well-modeled by two unresolved sources located at the position of each binary component. The interferometric observations recover the entire flux reported in previous single-dish studies, ruling out the presence of a large envelope. Assuming that the dust is optically thin, we derive disk dust masses of 2 × 10-4 M⊙ and 8× {10}-5 M⊙ for the north and south components, respectively. We place limits on the disks’ radii of r FU Ori-type episodes.

  10. ALMA finds dew drops in the dusty spider's web

    Science.gov (United States)

    Gullberg, Bitten; Lehnert, Matthew D.; De Breuck, Carlos; Branchu, Steve; Dannerbauer, Helmut; Drouart, Guillaume; Emonts, Bjorn; Guillard, Pierre; Hatch, Nina; Nesvadba, Nicole P. H.; Omont, Alain; Seymour, Nick; Vernet, Joël

    2016-06-01

    We present 0.̋5 resolution ALMA detections of the observed 246 GHz continuum, [CI] 3P2→3P1 fine structure line ([CI]2-1), CO(7-6), and H2O lines in the z = 2.161 radio galaxy MRC1138-262, the so-called Spiderweb galaxy. We detect strong [CI]2-1 emission both at the position of the radio core, and in a second component ~4 kpc away from it. The 1100 km s-1 broad [CI]2-1 line in this latter component, combined with its H2 mass of 1.6 × 1010 M⊙, implies that this emission must come from a compact region http://cdsarc.u-strasbg.fr (http://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/591/A73

  11. JCMT in the Post-Herschel ERA of Alma

    Science.gov (United States)

    Johnstone, Doug

    2013-07-01

    The James Clerk Maxwell Telescope (JCMT), with a 15m dish, is the largest single-dish astronomical telescope in the world designed specifically to operate in the sub-mm wavelength regime. The JCMT is located close to the summit of Mauna Kea, Hawaii, at an altitude of 4092m. The most recent addition to the JCMT's suite of instruments is the 10,000 bolometer sub-mm continuum instrument: SCUBA-2. SCUBA-2 operates simultaneously with 7' x7' foot print sub-arrays at both 450 and 850-microns. SCUBA-2's wide field surveying potential, combined with a 65% shared view of the sky from both sites, makes it the ideal instrument to provide complementary data for the ALMA Project. Furthermore, the SCUBA-2 sub-millimetre wavelength coverage and angular resolution complement existing Herschel observations. A set of comprehensive surveys of the submillimetre sky is underway at the James Clerk Maxwell Telescope (JCMT) using SCUBA-2 and HARP, a heterodyne array receiver operating between 325 and 375 GHz. The JCMT Legacy Survey (JLS) is comprised of seven survey projects, and ranges in scope from the study of nearby debris disk systems, the study of star formation in nearby molecular cloud systems and more distant structures in our Galactic Plane, to the structure and composition of galaxies in our local neighbourhood and the number and evolution of submillimetre galaxies at high redshifts in the early Universe. In addition to the JLS, the COHR survey is imaging the Galactic plane in CO (3-2) and a JAC Staff-led project is using SCUBA-2 to survey the Galactic Centre. This poster highlights the significant survey capabilities of SCUBA-2 and HARP and reveals the continuing importance of the JCMT in a post-Herschel, ALMA world.

  12. ACA phase calibration scheme with the ALMA water vapor radiometers

    Science.gov (United States)

    Asaki, Yoshiharu; Matsushita, Satoki; Morita, Koh-Ichiro; Nikolic, Bojan

    2012-09-01

    In Atacama Large Millimeter/submillimeter Array (ALMA) commissioning and science verification we have conducted a series of experiments of a novel phase calibration scheme for Atacama Compact Array (ACA). In this scheme water vapor radiometers (WVRs) devoted to measurements of tropospheric water vapor content are attached to ACA’s four total-power array (TP Array) antennas surrounding the 7 m dish interferometer array (7 m Array). The excess path length (EPL) due to the water vapor variations aloft is fitted to a simple two-dimensional slope using WVR measurements. Interferometric phase fluctuations for each baseline of the 7 m Array are obtained from differences of EPL inferred from the two-dimensional slope and subtracted from the interferometric phases. In the experiments we used nine ALMA 12-m antennas. Eight of them were closely located in a 70-m square region, forming a compact array like ACA. We supposed the most four outsiders to be the TP Array while the inner 4 antennas were supposed to be the 7 m Array, so that this phase correction scheme (planar-fit) was tested and compared with the WVR phase correction. We estimated residual root-mean-square (RMS) phases for 17- to 41-m baselines after the planar-fit phase correction, and found that this scheme reduces the RMS phase to a 70 - 90 % level. The planar-fit phase correction was proved to be promising for ACA, and how high or low PWV this scheme effectively works in ACA is an important item to be clarified.

  13. ALMA / porten til det kolde, støvede og fjerne univers

    DEFF Research Database (Denmark)

    Linden-Vørnle, Michael

    I det nordlige Chile er det enorme ALMA-teleskop ved at tage form, men allerede nu giver det enestående astronomiske øje os et helt nyt syn på universet.......I det nordlige Chile er det enorme ALMA-teleskop ved at tage form, men allerede nu giver det enestående astronomiske øje os et helt nyt syn på universet....

  14. Resolving the extended atmosphere and the inner wind of Mira ($o$ Ceti) with long ALMA baselines

    CERN Document Server

    Wong, K T; Menten, K M; Wyrowski, F

    2016-01-01

    The prototypical Mira variable, $o$ Cet (Mira), has been observed as a Science Verification target in the 2014 ALMA Long Baseline Campaign with a longest baseline of 15 km. ALMA clearly resolves the images of the continuum and molecular line emission/absorption at an angular resolution of ~30 mas at 220 GHz. We image the data of the $^{28}$SiO v=0, 2 $J$=5-4 and H$_2$O $\

  15. A Web-based Dashboard for the High-level Monitoring of ALMA

    OpenAIRE

    Pietriga, Emmanuel; Filippi, Giorgio; Véliz, Luis; Del Campo, Fernando; Ibsen, Jorge

    2014-01-01

    International audience The ALMA radio-telescope's operations depend on the availability of high-level, easy-to-understand status information about all of its components. The ALMA Dashboard aims at providing an all-in-one-place near-real-time overview of the observatory's key elements and figures to both line and senior management. The Dashboard covers a wide range of elements beyond antennas, such as pads, correlator and central local oscillator. Data can be displayed in multiple ways, inc...

  16. Supporting Student Learning in Computer Science Education via the Adaptive Learning Environment ALMA

    OpenAIRE

    Alexandra Gasparinatou; Maria Grigoriadou

    2015-01-01

    This study presents the ALMA environment (Adaptive Learning Models from texts and Activities). ALMA supports the processes of learning and assessment via: (1) texts differing in local and global cohesion for students with low, medium, and high background knowledge; (2) activities corresponding to different levels of comprehension which prompt the student to practically implement different text-reading strategies, with the recommended activity sequence adapted to the student’s learning style;...

  17. Mechanical unfolding of long human telomeric RNA (TERRA)

    OpenAIRE

    Garavís, M.; Bocanegra, Rebeca; Herrero-Galán, E.; González, Carlos; Villasante, Alfredo; Arias-González, J. R.

    2013-01-01

    We report the first single molecule investigation of TERRA molecules. By using optical-tweezers and other biophysical techniques, we have found that long RNA constructions of up to 25 GGGUUA repeats form higher order structures comprised of single parallel G-quadruplex blocks, which unfold at lower forces than their DNA counterparts. © 2013 The Royal Society of Chemistry.

  18. S'accabadora: viaggio nella terra del vento.

    Directory of Open Access Journals (Sweden)

    Roberta Murroni

    2010-11-01

    Full Text Available S'accabadora: viaggio nella terra del vento. Con testi dell'autrice.(Giovanna Mulas, Accabadora (Nessuno doveva sapere, nessuno doveva sentire Como - Il Ciliegio, in coll. Con Acco Editore, 2010, con illustrazioni a colori e b/n di Pinna Podestà, 112 pp.di Roberta Murroni

  19. Terras: Eesti osaleb Afganistani jätkumissioonil

    Index Scriptorium Estoniae

    2013-01-01

    Kaitseväe juhataja kindralmajor Riho Terras kinnitas NATO sõjalise komitee istungil Brüsselis liitlasriikidele, et Eesti on valmis osalema Afganistanis väljaõppe- ja toetusmissioonil "Resolute Support" pärast 2014. aastat, mil seal lõpeb rahvusvaheliste julgeolekutagamisjõudude sõjaline missioon

  20. Bilateral topographic symmetry patterns across Aphrodite Terra, Venus

    International Nuclear Information System (INIS)

    Western Aphrodite Terra, Venus, is characterized by a series of parallel linear structural discontinuities 2000--4000 km in length and 100--200 km wide, which strike at high angles to the general topographic trend of the Aphrodite Terra highlands. The broad chracteristics of the cross-strike discontinuities (CSDs) are similar to both strike-slip fault zones and terrestrial oceanic fracture zones. In an effort to distinguish between these two hypotheses, topographic profiles were taken across Aphrodite Terra to test for bilateral symmetry of the type associated with thermal boundary layer topography at divergent plate boundaries on Earth. In addition to a broad bilateral symmetry at a range of angles across Aphrodite Terra, detailed bilateral symmetry is observed within domains between linear discontinuities in directions generally parallel to the strike of the discontinuities. In addition, within a domain the centers of symmetry of several profiles define a linear rise crest that is oriented normal to the bounding CSDs and terminates against them

  1. Archaeometric characterization of Terra Sigillata Hispanica from Granada workshops

    Energy Technology Data Exchange (ETDEWEB)

    Compana, J. M.; Leon-Reina, L.; Aranda, M. A. G.

    2010-07-01

    Terra Sigillata was a Roman pottery, which was also produced in several workshops in Hispania. Two known workshops at Granada (Cartuja and Carmen de la Muralla, or Albayzin) are known to have produced both typical Terra Sigillata and low-gloss coating related pottery. Potsherds from these workshops have been thoroughly studied from an archaeological approach, but not by analytical chemistry techniques. Here, we report a full characterization of nine selected samples from these workshops and also a tenth sample, Terra Sigillata made in the Gaul, for comparison. The pastes characterization includes elemental analysis from XRF and quantitative mineralogical analysis by Rietveld analysis of XRPD data. Cluster analysis to both types of data has been carried out. SEM-EDX and GI-XRPD have been used to characterize the slips of the pottery. The elemental analysis results for the pastes suggest that terra sigillata potsherds from both workshops were likely made from the same clay, different to that used to make the low-gloss coating pottery. The firing temperatures have been estimated from the phase assemblages being about 900-950 degree centigrade for the Granada sigillata. (Author)

  2. Genome Sequences of Gordonia terrae Phages Benczkowski14 and Katyusha.

    Science.gov (United States)

    Pope, Welkin H; Benczkowski, Matthew S; Green, Daryn E; Hwang, Melina; Kennedy, Bryan; Kocak, Bradley; Kruczek, Ellen; Lin, Leon; Moretti, Matthew L; Onelangsy, Faith L; Mezghani, Nadia; Milliken, Katherine A; Toner, Chelsea L; Thompson, Paige K; Ulbrich, Megan C; Furbee, Emily C; Grubb, Sarah R; Warner, Marcie H; Montgomery, Matthew T; Garlena, Rebecca A; Russell, Daniel A; Jacobs-Sera, Deborah; Hatfull, Graham F

    2016-01-01

    Bacteriophages Katyusha and Benczkowski14 are newly isolated phages that infect Gordonia terrae 3612. Both have siphoviral morphologies with isometric heads and long tails (500 nm). The genomes are 75,380 bp long and closely related, and the tape measure genes (9 kbp) are among the largest to be identified. PMID:27340062

  3. Propriedades químicas de uma Terra Roxa Estruturada influenciadas pela cobertura vegetal de inverno e pela adubação orgânica e mineral

    OpenAIRE

    F. Andreola; L. M. Costa; E. S. Mendonça; N. Olszevski

    2000-01-01

    O presente trabalho teve por objetivo avaliar a influência da cobertura vegetal de inverno, constituída de uma associação de aveia preta (Avena strigosa Schreb) com nabo forrageiro (Raphanus sativus L.), da adubação orgânica com esterco de aves e da adubação mineral sobre propriedades químicas de uma Terra Roxa Estruturada do estado de Santa Catarina. As análises foram realizadas em amostras de solo coletadas em agosto de 1994 e janeiro de 1995, nas profundidades de 0-10, 10-20 e 20-30 cm, em...

  4. A terra, a tela e a letra

    Directory of Open Access Journals (Sweden)

    Susanna Busato Feitosa

    2006-12-01

    Full Text Available Este estudo visa elaborar uma leitura dos aspectos semióticos que organizam os espaços de significação no processo da formação cultural brasileira a partir dos processos tradutórios realizados por parte das expedições exploratórias que para os trópicos vieram. Investigam-se, assim, por meio de relações em nível paradigmático e sintagmático, as produções pictóricas dos artistas viajantes dos séculos XVII, Albert Eckhout e Frans Post, e as produções poéticas barrocas de Gregório de Matos, Manuel Botelho de Oliveira e Manuel de Santa Maria Itaparica.

  5. Análise de deformação de uma barragem de terra instrumentada com uso de dois modelos constitutivos

    OpenAIRE

    Moreira, Luis Fernando

    2013-01-01

    Resumo: O trabalho foi desenvolvido com base em resultados de ensaios de laboratório e dados de instrumentação de uma barragem de terra, construída para armazenamento de rejeito. Nela estão contidos diversos instrumentos de monitoramento tais como placas de recalque, inclinômetros, marcos superficiais e piezômetros. Dispõe-se de ensaios triaxiais do tipo adensado e não drenado, nos diversos materiais da barragem. Os dados dos ensaios foram tratados e analisados em utilizando dois modelos cons...

  6. Avaliação fitotecnica de bananeiras tipo terra sob irrigação em condições semi-áridas Agronomical evaluation of bananas under irrigation and semi-arid conditions

    Directory of Open Access Journals (Sweden)

    Hudson Caldeira de Faria

    2010-08-01

    Full Text Available Conduziu-se este trabalho, com o objetivo de avaliar fitotecnicamente as características vegetativas e de rendimento de cinco cultivares de bananeira tipo Terra, em primeiro ciclo de produção sob irrigação nas condições semiáridas da região de Guanambi - BA. Utilizaram-se descritores fenotípicos relevantes para a identificação e seleção de indivíduos com características superiores, visando a disponibilizar aos produtores dos perímetros de irrigação uma alternativa para a diversificação da bananicultura. Avaliaram-se as seguintes características: número de dias do plantio ao florescimento e à colheita, altura da planta, perímetro do pseudocaule, número de folhas vivas nas épocas do florescimento e colheita, o intervalo florescimento-colheita, peso do cacho, da ráquis e das pencas, número de pencas e de frutos, comprimento e diâmetro do fruto. O experimento foi delineado em blocos casualizados, com cinco tratamentos, constituídos pelas cultivares AAB: Terra, Terra-Maranhão, Terrinha e D'Angola e pelo híbrido AAAB: FHIA-21 com cinco repetições. Cada parcela foi constituída por 20 plantas (quatro fileiras de cinco plantas, com seis plantas úteis no espaçamento de 3,0 m x 3,0 m. Destacaram-se as cultivares avaliadas a Terra e a Terra Maranhão como as mais produtivas, porém, com maior altura e mais tardias em ciclo. O híbrido FHIA-21 e as cultivares Terrinha e D'Angola, apresentaram-se com maior número de folhas vivas à época da colheita. A cultivar D'Angola apresentou a menor produtividade dentre as cultivares avaliadas.The goal of this work was to make a agronomical evaluation of the vegetative characteristics and income of five cultivars of banana type Plantain, in the first production cycle under irrigation in the semi-arid conditions of the region of the city of Guanambi -Bahia State. Relevant phenotypic descriptors were used for the identification and selection of individuals with superior

  7. Conhecimento e usos do babaçu (Attalea speciosa Mart. e Attalea eichleri (Drude A. J. Hend. entre os Mebêngôkre-Kayapó da Terra Indígena Las Casas, estado do Pará, Brasil Knowledge and use of babassu (Attalea speciosa Mart. and Attalea eichleri ​​(Drude A.J. Hend. among Mebengokre-kayapó from Las Casas Indigenous Land, Pará state, Brazil

    Directory of Open Access Journals (Sweden)

    Sol Elizabeth González-Pérez

    2012-06-01

    Full Text Available O babaçu (A. speciosa é uma das espécies que se destacam na subsistência de diversos povos e populações tradicionais que habitam o cerrado, região que ocupa aproximadamente 24% do território brasileiro. Neste estudo, efetuado entre o povo indígena Kayapó, foi feito um levantamento sobre os usos do babaçu na aldeia Las Casas, na Terra Indígena Las Casas, a qual está localizada dentro dos municípios de Pau D´Arco, Floresta do Araguaia e Redenção, no estado do Pará. Os dados foram obtidos através de entrevistas semi-estruturadas com 25 interlocutores e a importância deste recurso para os Kayapó foi analisada com base nos tipos de usos mencionados, calculando o índice de diversidade de uso entre os indígenas. Os informantes reconheceram duas etnoespécies como babaçu, A. speciosa (rõn tire e A. eichleri (rõn ne com aproximadamente dez usos em cinco categorias: alimentação, construção, cosmético, doméstico e ritual. Os resultados obtidos para o valor de diversidade do informante (IDs foram de 22,89 para A. speciosa e 10, 35 para A. eichleri. Estes valores demonstram que os informantes possuem menor dependência dos recursos oferecidos por A. eichleri, quando comparada aos oferecidos por A. speciosa, e ainda que os valores entre as duas espécies sejam discrepantes, a importância delas está relacionada principalmente ao aproveitamento da amêndoa para a produção de óleo para usos rituais e cosméticos.The babassu palm (A. speciosa is a species that stands out in the economy and livelihood of the people who live in the Cerrado biome, which is approximately 24% of Brazilian territory. A survey on the use and knowledge of babassu was carried out in the village of Las Casas, in Las Casas Indigenous Land. This village is located in the municipalities of Pau D'Arco, Floresta do Araguaia and Redenção. The importance of babassu for the community was analyzed by taking into account the types of uses registered and their

  8. Utilização do sistema de avaliação do potencial de uso urbano das terras no diagnóstico ambiental do município de Santa Maria - RS

    Directory of Open Access Journals (Sweden)

    Pedron Fabrício de Araújo

    2006-01-01

    Full Text Available A expansão urbana acelerada tem provocado diversos impactos negativos ao ambiente. A necessidade de novas metodologias que permitam um planejamento mais adequado dos recursos naturais é cada dia mais evidente. O objetivo deste trabalho foi realizar um diagnóstico ambiental em áreas urbanas de Santa Maria - RS, determinando-se os conflitos de uso das terras através, do Sistema de Avaliação do Potencial de Uso Urbano das Terras (SAPUT. Foram utilizados produtos e técnicas de sensoriamento remoto e geoprocessamento de imagens. Os problemas de uso indevido das terras identificados estão relacionados com a fragilidade do material geológico e do recurso solo. Até 33% da área vem apresentando utilização acima do seu potencial devido ao seu uso inadequado para construções e agricultura urbana.

  9. Alimentos, palavras e saúde (da alma e do corpo, em sermões de pregadores brasileiros do século XVII Food, words, and health (of soul and body in sermons by seventeenth-century preachers in Brazil

    Directory of Open Access Journals (Sweden)

    Marina Massimi

    2006-06-01

    Full Text Available Este artigo analisa alguns sermões pregados entre os séculos XVII e XVIII no Brasil, baseados em metáforas alimentares. O uso das metáforas, recorrente nos sermões do período colonial, fundamenta-se em dois alicerces: 1 na teoria aristotélica do conhecimento, em que o sensorial ocupa um papel prioritário, como porta de acesso para a compreensão das idéias mais abstratas e para a mobilização dos afetos e da vontade visando à modificação do comportamento dos ouvintes; 2 na doutrina platônica sobre a importância das imagens para conservar a memória das idéias. A oratória sagrada do período desperta interesse para a história cultural, uma vez que os sermões constituíram-se numa importantíssima fonte de transmissão de doutrinas e de modelagem dos comportamentos numa sociedade em que a oralidade era a principal forma de difusão dos conhecimentos.The article analyzes a number of sermons employing food metaphors, preached in Brazil during the seventeenth and eighteenth centuries. The use of metaphors drawn from listeners' daily lives was common in sermons during the colonial period, underpinned by two theoretical considerations: 1 the Aristotelian theory of knowledge, where the senses play a primary role as an access way to comprehension of more abstract ideas and as a means for urging listeners to change their behavior patterns by affecting their emotions and their wills; 2 the Platonic doctrine, where images are important in preserving our memory of ideas. The sacred oratory of the colonial period is of major interest to cultural history, since these sermons served as an invaluable way of transmitting doctrine and of shaping behavior in a society where orality was the chief method for spreading knowledge.

  10. Solar Observations with the Atacama Large Millimeter/submillimeter Array (ALMA)

    Science.gov (United States)

    Bastian, Timothy S.

    2015-04-01

    The Atacama Large Millimeter/Submillimeter Array (ALMA) is a joint North American, European, and East Asian project that opens the mm-submm wavelength part of the electromagnetic spectrum for general astrophysical exploration, providing high-resolution imaging in frequency bands currently ranging from 84 GHz to 950 GHz (300 microns to 3 mm). Despite being a general purpose instrument, provisions have been made to enable solar observations with ALMA. Radiation emitted at ALMA wavelengths originates mostly from the chromosphere, which plays an important role in the transport of matter and energy, and the in heating the outer layers of the solar atmosphere. Despite decades of research, the solar chromosphere remains a significant challenge: both to observe, owing to the complicated formation mechanisms of currently available diagnostics; and to understand, as a result of the complex nature of the structure and dynamics of the chromosphere. ALMA has the potential to change the scene substantially as it serves as a nearly linear thermometer at high spatial and temporal resolution, enabling us to study the complex interaction of magnetic fields and shock waves and yet-to-be-discovered dynamical processes. Moreover, ALMA will play an important role in the study of energetic emissions associated with solar flares at sub-THz frequencies.In this paper we describe recent efforts to ensure that ALMA can be usefully exploited by the scientific community to address outstanding questions in solar physics. We summarize activities by the ALMA solar development team comprised of scientists from the East Asia, North America, and Europe. These activities include instrument testing, development of calibration and imaging strategies, software requirements development, and science simulations. Opportunities for the wider community to contribute to these efforts will be highlighted.

  11. Relações eu-­tu: o caminho da santidade por meio da Torah

    Directory of Open Access Journals (Sweden)

    Renato Pfeffer

    2011-11-01

    Full Text Available Em suas reflexões filosóficas, Martin Buber (1878–1965 aponta para a missão fundamental das almas humanas: elas deveriam transformar a criação em reino de Deus. Nos relacionamentos concretos cotidianos, essas almas, cada qual respeitando o mistério da outra, deveriam orientar-­e ao infinito pela ação, numa busca constante de uma existência autêntica. Assim, Deus deu a Torah ao homem como um presente para que ele pudesse contribuir para construção de seu reino. É responsabilidade do homem colocar em prática seu projeto pessoal e conduzir toda a humanidade para uma existência autêntica vinculada a Deus.

  12. Design and performance of the ALMA-J prototype antenna

    Science.gov (United States)

    Ukita, Nobuharu; Saito, Masao; Ezawa, Hajime; Ikenoue, Bungo; Ishizaki, Hideharu; Iwashita, Hiroyuki; Yamaguchi, Nobuyuki; Hayakawa, Takahiro

    2004-10-01

    The National Astronomical Observatory of Japan has constructed a prototype 12-m antenna of the Atacama Compact Array to evaluate its performance at the ALMA Test Facility in the NRAO VLA observatory in New Mexico, the United States. The antenna has a CFRP tube backup structure (BUS) with CFRP boards to support 205 machined Aluminum surface panels. Their accuracies were measured to be 5.9 m rms on average. A chemical treatment technique of the surface panels has successfully applied to scatter the solar radiation, which resulted in a subreflector temperature increase of about 25 degrees relative to ambient temperature during direct solar observations. Holography measurements and panel adjustments led to a final surface accuracy of 20 m rms, (weighted by 12dB edge taper), after three rounds of the panel adjustments. Based on a long term temperature monitoring of the BUS and thermal deformation FEM calculation, the BUS thermal deformation was estimated to be less than 3.1 m rms. We have employed gear drive mechanism both for a fast position switching capability and for smooth drive at low velocities. Servo errors measured with angle encoders were found to be less than 0.1 arcseconds rms at rotational velocities below 0.1 degrees s-1 and to increase to 0.7 arcseconds rms at the maximum speed of the 'on-the-fly' scan as a single dish, 0.5 deg s-1 induced by the irregularity of individual gear tooth profiles. Simultaneous measurements of the antenna motion with the angle encoders and seismic accelerometers mounted at the primary reflector mirror edges and at the subreflector showed the same amplitude and phase of oscillation, indicating that they are rigid, suggesting that it is possible to estimate where the antenna is actually pointing from the encoder readout. Continuous tracking measurements of Polaris during day and night have revealed a large pointing drift due to thermal distortion of the yoke structure. We have applied retrospective thermal corrections to

  13. El (reconocimiento de la madre en La mitad del alma

    Directory of Open Access Journals (Sweden)

    Sandra J. Schumm

    2011-01-01

    Full Text Available Resumen: La mitad del alma de Carme Riera, en que C rememora a su madre, enfatiza la importancia del reconocimiento de las mujeres en la memoria histórica. Desde el mito griego de Atena, quien ignoraba a su madre Metis, la sociedad patriarcal ha excluido a la madre, lo cual promete que la hija conlleve negación también, según Amber Jacobs en On Matricide. Jacobs observa que en La Oresteia hay crímenes sancionados contra las mujeres, las hijas están deprimidas, existe incesto contra la hija, la reproducción familiar se paraliza, toda la sociedad sufre y la hija se desperdicia también cuando la madre es menospreciada. Jacobs afirma que este desprecio de la madre que transcurría en los mitos griegos continúa en la sociedad y la psicología hoy en día. En esta novela de Riera, la hija protagonista, quien desconoce a su madre, sufre de un estado depresivo, la falta de creatividad y una conexión demasiado fuerte con su padre, semejante a lo que Jacobs observa en los mitos, pero la escritura de C sobre su madre la integrará en la consciencia y mejorará la situación de la hija y, últimamente, la de toda la civilización.Summary: Carme Riera‟s La mitad del alma, in which C recollects her mother, emphasizes the importance of the recognition of women in historic memory. Ever since the Greek myth of Athena, who was ignorant of the existence of her mother, Metis, patriarchal society has excluded the mother, a fact which promises that the daughter will also experience negation, according to Amber Jacobs in On Matricide. Jacobs observes that in La Oresteia there are sanctioned crimes against women, the daughters are depressed, there is incest against the daughter, she is dishonored, family reproduction stops, and all of society suffers when the mother is not appreciated. Jacobs affirms that the distain of the mother that took place in Greek myths continues in society and psychology today. In this novel by Riera, the protagonist/daughter, who

  14. Geological Mapping of the Lada Terra (V-56) Quadrangle, Venus

    Science.gov (United States)

    Kumar, P. Senthil; Head, James W., III

    2009-01-01

    Geological mapping of the V-56 quadrangle (Fig. 1) reveals various tectonic and volcanic features and processes in Lada Terra that consist of tesserae, regional extensional belts, coronae, volcanic plains and impact craters. This study aims to map the spatial distribution of different material units, deformational features or lineament patterns and impact crater materials. In addition, we also establish the relative age relationships (e.g., overlapping or cross-cutting relationship) between them, in order to reconstruct the geologic history. Basically, this quadrangle addresses how coronae evolved in association with regional extensional belts, in addition to evolution of tesserae, regional plains and impact craters, which are also significant geological units of Lada Terra.

  15. Supervolcanoes within an ancient volcanic province in Arabia Terra, Mars.

    Science.gov (United States)

    Michalski, Joseph R; Bleacher, Jacob E

    2013-10-01

    Several irregularly shaped craters located within Arabia Terra, Mars, represent a new type of highland volcanic construct and together constitute a previously unrecognized Martian igneous province. Similar to terrestrial supervolcanoes, these low-relief paterae possess a range of geomorphic features related to structural collapse, effusive volcanism and explosive eruptions. Extruded lavas contributed to the formation of enigmatic highland ridged plains in Arabia Terra. Outgassed sulphur and erupted fine-grained pyroclastics from these calderas probably fed the formation of altered, layered sedimentary rocks and fretted terrain found throughout the equatorial region. The discovery of a new type of volcanic construct in the Arabia volcanic province fundamentally changes the picture of ancient volcanism and climate evolution on Mars. Other eroded topographic basins in the ancient Martian highlands that have been dismissed as degraded impact craters should be reconsidered as possible volcanic constructs formed in an early phase of widespread, disseminated magmatism on Mars. PMID:24091975

  16. Eastern Ishtar Terra: Tectonic evolution derived from recognized features

    Science.gov (United States)

    Vorderbruegge, R. W.; Head, James W.

    Previous analyses have recognized several styles and orientations of compressional deformation, crustal convergence, and crustal thickening in Eastern Ishtar Terra. An east to west sense of crustal convergence through small scale folding, thrusting, and buckling is reflected in the high topography and ridge-and-valley morphology of Maxwell Montes and the adjacent portion of Fortuna Tessera. This east to west convergence was accompanied by up to 1000 km of lateral motion and large scale strike-slip faulting within two converging shear zones which has resulted in the present morphology of Maxwell Montes. A more northeast to southwest sense of convergence through large scale buckling and imbrication is reflected in large, northwest-trending scarps along the entire northern boundary of Ishtar Terra, with up to 2 km of relief present at many of the scarps. It was previously suggested that both styles of compression have occurred at the expense of pre-existing tessera regions which have then been overprinted by the latest convergence event. The difference in style is attributed mostly to differences in the properties of the crust converging with the tessera blocks. If one, presumably thick, tessera block converges with another tessera region, then the widespread, distributed style of deformation occurs, as observed in western Fortuna Tessera. However, if relatively thin crust (such as suggested for the North Polar Plains converges with thicker tessera regions, then localized deformation occurs, as reflected in the scarps along Northern Ishtar Terra. The purpose is to identify the types of features observed in Eastern Ishtar Terra. Their potential temporal and spatial relationships, is described, possible origins for them is suggested, and how the interpretation of some of these features has led to the multiple-style tectonic evolution model described is shown.

  17. Eastern Ishtar Terra: Tectonic evolution derived from recognized features

    International Nuclear Information System (INIS)

    Previous analyses have recognized several styles and orientations of compressional deformation, crustal convergence, and crustal thickening in Eastern Ishtar Terra. An east to west sense of crustal convergence through small scale folding, thrusting, and buckling is reflected in the high topography and ridge-and-valley morphology of Maxwell Montes and the adjacent portion of Fortuna Tessera. This east to west convergence was accompanied by up to 1000 km of lateral motion and large scale strike-slip faulting within two converging shear zones which has resulted in the present morphology of Maxwell Montes. A more northeast to southwest sense of convergence through large scale buckling and imbrication is reflected in large, northwest-trending scarps along the entire northern boundary of Ishtar Terra, with up to 2 km of relief present at many of the scarps. It was previously suggested that both styles of compression have occurred at the expense of pre-existing tessera regions which have then been overprinted by the latest convergence event. The difference in style is attributed mostly to differences in the properties of the crust converging with the tessera blocks. If one, presumably thick, tessera block converges with another tessera region, then the widespread, distributed style of deformation occurs, as observed in western Fortuna Tessera. However, if relatively thin crust such as suggested for the North Polar Plains converges with thicker tessera regions, then localized deformation occurs, as reflected in the scarps along Northern Ishtar Terra. The purpose is to identify the types of features observed in Eastern Ishtar Terra. Their potential temporal and spatial relationships, is described, possible origins for them is suggested, and how the interpretation of some of these features has led to the multiple-style tectonic evolution model described is shown

  18. Validation of TERRA-ML with discharge measurements

    Directory of Open Access Journals (Sweden)

    René Grasselt

    2008-12-01

    Full Text Available We evaluate the runoff-simulation performance of a water transport model (routing scheme coupled to the Land Surface Parameterization module TERRA-ML of the operational COSMO (Consortium for Small-Scale Modelling weather forecast model. In addition to the successful implemention of the routing scheme, we also included an alternative vertical soil water transport parameterisation in TERRA-ML in order to estimate the uncertainty caused by the component of the LSP central to runoff generation. A combination of two data sets, both operational products by DWD, is used for precipitation input. These are the hourly precipitation data set RADOLAN RW, which is based on radar data and is calibrated by rain gauges, as well as the daily REGNIE data set, which is only based on gauge data. The mesoscale Sieg river catchment located in Western Germany is used as the evaluation testbed. The extended TERRA-ML was run in standalone mode (decoupled from the atmospheric part of the COSMO model with 1 × 1 km spatial resolution from April to September 2005 based on and provided with spatially more detailed descriptions of topography, land use and soil texture. The model was driven by operational COSMO analysis data and two different sources of observed precipitation (gauge and radar measurements. The results are compared to discharge measurements. They indicate a good representation of the observed discharge by the extended TERRA-ML system. The additionally implemented linear vertical soil water parameterization overestimates total discharge less (6 % than the default exponential parameterization (20 % when compared to a gauging station located at the lower reaches of the river Sieg. Suggestions are given on how to further enhance the modelled discharge by improvements in the LSP scheme.

  19. Terra MODIS Band 27 Electronic Crosstalk Effect and Its Removal

    Science.gov (United States)

    Sun, Junqiang; Xiong, Xiaoxiong; Madhavan, Sriharsha; Wenny, Brian

    2012-01-01

    The MODerate-resolution Imaging Spectroradiometer (MODIS) is one of the primary instruments in the NASA Earth Observing System (EOS). The first MODIS instrument was launched in December, 1999 on-board the Terra spacecraft. MODIS has 36 bands, covering a wavelength range from 0.4 micron to 14.4 micron. MODIS band 27 (6.72 micron) is a water vapor band, which is designed to be insensitive to Earth surface features. In recent Earth View (EV) images of Terra band 27, surface feature contamination is clearly seen and striping has become very pronounced. In this paper, it is shown that band 27 is impacted by electronic crosstalk from bands 28-30. An algorithm using a linear approximation is developed to correct the crosstalk effect. The crosstalk coefficients are derived from Terra MODIS lunar observations. They show that the crosstalk is strongly detector dependent and the crosstalk pattern has changed dramatically since launch. The crosstalk contributions are positive to the instrument response of band 27 early in the mission but became negative and much larger in magnitude at later stages of the mission for most detectors of the band. The algorithm is applied to both Black Body (BB) calibration and MODIS L1B products. With the crosstalk effect removed, the calibration coefficients of Terra MODIS band 27 derived from the BB show that the detector differences become smaller. With the algorithm applied to MODIS L1B products, the Earth surface features are significantly removed and the striping is substantially reduced in the images of the band. The approach developed in this report for removal of the electronic crosstalk effect can be applied to other MODIS bands if similar crosstalk behaviors occur.

  20. Cócs. Hallmark of the Terra Alta

    Directory of Open Access Journals (Sweden)

    Maria Del Loreto Meix

    2004-04-01

    Full Text Available This article looks at the traditional cake making in the Terra Alta (Catalonien area linked to festivities, and in particular the pastries usually made. In this area the pastries are known as cócs, a word common to Terra Alta and the neighbouring districts of Ribera d'Ebre and the Priorat. Locally produced mistelle, sweet or rancid wine is served with the pastries. Nowadays, the bakeries and cake makers in the area's towns and villages also produce traditionally crafted products, that used only to be homemade.The article, resulting from the final degree project produced by the author for her Humanities degree at the UOC, offers a privileged look at the richness of the Terra Alta in terms of its gastronomic history, customs and its high regard for its cakes. The author, who has previous experience in the field, places the specific aspects of Terra Alta cake making in the context of the Mediterranean cultures with common roots dating back to the ancient and medieval worlds and which still have an easily identifiable "family feel", whilst looking, from an ethnographic point of view, at what she calls the "world of wheat" in the area, (the dough for bread, the craft of the baker, the ovens and other tools, and the associated traditions, among other things. In short, she rescues a living part of the local day-to-day activities and places it under the microscope of food history, whilst providing information that may well be of interest for study from other points of view.

  1. Health for All Now! Reviving the spirit of Alma Ata in the Twenty-first century: An Introduction to the Alma Ata Declaration

    Directory of Open Access Journals (Sweden)

    Fran Baum

    2007-01-01

    Full Text Available Abstract In 1978 two United Nations organizations, the World Health Organization and UNICEF, held a joint conference at Alma Ata in the Soviet Union at which health was described as a human right to which all people were entitled. The goal of achieving health for all by the end of the century was established. The Alma Ata Declaration on Primary Health Care emerged from this conference. It was endorsed on the 12th September 1978, and has inspired subsequent generations of health activists. It has become a common meeting ground where likeminded public health personnel can compare and discuss strategy and relate their discussion to a common document. The slogan “Health for All by the Year 2000”, while not achieved, has been a rallying call for progressive health workers and activists. The Declaration has also inspired the global people’s health movement and two global people’s health assemblies. The concept “primary health care” has been crucial to the improvement of many countries’ health systems and, while its meaning has been variously interpreted, the pursuit of the ideal of comprehensive primary health care still motivates health workers around the world who want to ensure a more people-centred, responsive and effective and efficient health care system for their community and country. Thus the Alma Ata Declaration is a quite remarkable document and has made an impact that few other before or since have had. This article describes the international context that enabled the drafting and adoption of the Alma Ata Declaration. It then describes the document and assesses the reasons for its importance. The struggles for the ideals and strategies of the Declaration through the progressively more hostile international climate of the 1980s and 1990s are discussed. Finally, the prospects for a revival of the spirit of Alma Ata are assessed.

  2. Geologic map of the Lada Terra quadrangle (V-56), Venus

    Science.gov (United States)

    Kumar, P. Senthil; Head, James W.

    2013-01-01

    This publication provides a geological map of Lada Terra quadrangle (V–56), a portion of the southern hemisphere of Venus that extends from lat 50° S. to 70° S. and from long 0° E. to 60° E. V–56 is bordered by Kaiwan Fluctus (V–44) and Agnesi (V–45) quadrangles in the north and by Mylitta Fluctus (V–61), Fredegonde (V–57), and Hurston (V–62) quadrangles in the west, east, and south, respectively. The geological map of V–56 quadrangle reveals evidence for tectonic, volcanic, and impact processes in Lada Terra in the form of tesserae, regional extensional belts, coronae, and volcanic plains. In addition, the map also shows relative age relations such as overlapping or cross-cutting relations between the mapped geologic units. The geology observed within this quadrangle addresses (1) how coronae evolved in association with regional extensional belts and (2) how tesserae, regional plains, and impact craters, which are also significant geological units observed in Lada Terra quadrangle, were formed.

  3. A code generation framework for the ALMA common software

    Science.gov (United States)

    Troncoso, Nicolás; von Brand, Horst H.; Ibsen, Jorge; Mora, Matias; Gonzalez, Victor; Chiozzi, Gianluca; Jeram, Bogdan; Sommer, Heiko; Zamora, Gabriel; Tejeda, Alexis

    2010-07-01

    Code generation helps in smoothing the learning curve of a complex application framework and in reducing the number of Lines Of Code (LOC) that a developer needs to craft. The ALMA Common Software (ACS) has adopted code generation in specific areas, but we are now exploiting the more comprehensive approach of Model Driven code generation to transform directly an UML Model into a full implementation in the ACS framework. This approach makes it easier for newcomers to grasp the principles of the framework. Moreover, a lower handcrafted LOC reduces the error rate. Additional benefits achieved by model driven code generation are: software reuse, implicit application of design patterns and automatic tests generation. A model driven approach to design makes it also possible using the same model with different frameworks, by generating for different targets. The generation framework presented in this paper uses openArchitectureWare1 as the model to text translator. OpenArchitectureWare provides a powerful functional language that makes this easier to implement the correct mapping of data types, the main difficulty encountered in the translation process. The output is an ACS application readily usable by the developer, including the necessary deployment configuration, thus minimizing any configuration burden during testing. The specific application code is implemented by extending generated classes. Therefore, generated and manually crafted code are kept apart, simplifying the code generation process and aiding the developers by keeping a clean logical separation between the two. Our first results show that code generation improves dramatically the code productivity.

  4. Linear polarization of submillimetre masers. Tracing magnetic fields with ALMA

    CERN Document Server

    Pérez-Sánchez, A F

    2013-01-01

    The goal of this work it to investigate if SiO, H2O and HCN maser emission within the ALMA frequency range can be detected with observable levels of fractional linear polarization in the regime where the Zeeman frequency (gOmega) is greater than the stimulated emission rate (R) and the decay rate of the molecular state (Gamma). We have used a radiative transfer code to calculate the fractional linear polarization as a function of the emerging brightness temperature for a number of rotational transition of SiO, H2O and HCN which have been observed to display maser emission at submillimetre wavelengths. We assume typical magnetic field strengths measured towards galactic star forming regions and circumstellar envelopes of late-type stars from previous VLBI observations. Since the Land\\'e g-factors have not been reported for the different rotational transitions we have modeled, we performed our calculations assuming conservative values of the Zeeman frequency for the different molecular species. Setting a lower ...

  5. Resolving the Planetesimal Belt of HR 8799 with ALMA

    CERN Document Server

    Booth, Mark; Casassus, Simon; Hales, Antonio S; Dent, William R F; Faramaz, Virginie; Matrà, Luca; Barkats, Denis; Brahm, Rafael; Cuadra, Jorge

    2016-01-01

    The star HR 8799 hosts one of the largest known debris discs and at least four giant planets. Previous observations have found evidence for a warm belt within the orbits of the planets, a cold planetesimal belt beyond their orbits and a halo of small grains. With the infrared data, it is hard to distinguish the planetesimal belt emission from that of the grains in the halo. With this in mind, the system has been observed with ALMA in band 6 (1.34 mm) using a compact array format. These observations allow the inner edge of the planetesimal belt to be resolved for the first time. A radial distribution of dust grains is fitted to the data using an MCMC method. The disc is best fit by a broad ring between $145^{+12}_{-12}$ AU and $429^{+37}_{-32}$ AU at an inclination of $40^{+5}_{-6}${\\deg} and a position angle of $51^{+8}_{-8}${\\deg}. A disc edge at ~145 AU is too far out to be explained simply by interactions with planet b, requiring either a more complicated dynamical history or an extra planet beyond the orb...

  6. The 492 GHz emission of Sgr A* constrained by ALMA

    CERN Document Server

    Liu, Hauyu Baobab; Zhao, Jun-Hui; Mills, Elisabeth A C; Requena-Torres, Miguel A; Matsushita, Satoki; Martín, Sergio; Ott, Jürgen; Morris, Mark R; Longmore, Steven N; Brinkerink, Christiaan D; Falcke, Heino

    2016-01-01

    We report linearly polarized continuum emission properties of Sgr A* at $\\sim$492 GHz, based on the Atacama Large Millimeter Array (ALMA) observations. We used the observations of the likely unpolarized continuum emission of Titan, and the observations of C\\textsc{i} line emission, to gauge the degree of spurious polarization. The Stokes I flux of 3.6$\\pm$0.72 Jy during our run is consistent with extrapolations from the previous, lower frequency observations. We found that the continuum emission of Sgr A* at $\\sim$492 GHz shows large amplitude differences between the XX and the YY correlations. The observed intensity ratio between the XX and YY correlations as a function of parallactic angle may be explained by a constant polarization position angle of $\\sim$158$^{\\circ}$$\\pm$3$^{\\circ}$. The fitted polarization percentage of Sgr A* during our observational period is 14\\%$\\pm$1.2\\%. The calibrator quasar J1744-3116 we observed at the same night can be fitted to Stokes I = 252 mJy, with 7.9\\%$\\pm$0.9\\% polariz...

  7. Detection of CO and HCN in Pluto's atmosphere with ALMA

    CERN Document Server

    Lellouch, E; Butler, B; Fouchet, T; Lavvas, P; Strobel, D F; Sicardy, B; Moullet, A; Moreno, R; Bockelée-Morvan, D; Biver, N; Young, L; Lis, D; Stansberry, J; Stern, A; Weaver, H; Young, E; Zhu, X; Boissier, J

    2016-01-01

    Observations of the Pluto-Charon system, acquired with the ALMA interferometer on June 12-13, 2015, have yielded a detection of the CO(3-2) and HCN(4-3) rotational transitions from Pluto, providing a strong confirmation of the presence of CO, and the first observation of HCN, in Pluto's atmosphere. The CO and HCN lines probe Pluto's atmosphere up to ~450 km and ~900 km altitude, respectively. The CO detection yields (i) a much improved determination of the CO mole fraction, as 515+/-40 ppm for a 12 ubar surface pressure (ii) clear evidence for a well-marked temperature decrease (i.e., mesosphere) above the 30-50 km stratopause and a best-determined temperature of 70+/-2 K at 300 km, in agreement with recent inferences from New Horizons / Alice solar occultation data. The HCN line shape implies a high abundance of this species in the upper atmosphere, with a mole fraction >1.5x10-5 above 450 km and a value of 4x10-5 near 800 km. The large HCN abundance and the cold upper atmosphere imply supersaturation of HCN...

  8. ALMA Finds Dew Drops in the Dusty Spider's Web

    CERN Document Server

    Gullberg, B; De Breuck, C; Branchu, S; Dannerbauer, H; Drouant, G; Emonts, B; Guillard, P; Hatch, N; Nesvadba, N P H; Omont, A; Seymour, N; Vernet, J

    2016-01-01

    We present 0."5 resolution ALMA detections of the observed 246GHz continuum, [CI]^3P_2-^3P_1 fine structure line ([CI]2-1), CO(7-6) and H2O lines in the z=2.161 radio galaxy MRC1138-262, the 'Spiderweb Galaxy'. We detect strong [CI]2-1 emission both at the position of the radio core, and in a second component ~4kpc away from it. The 1100km/s broad [CI]2-1 line in this latter component, combined with its H2 mass of 1.6x10^10Msun implies this emission must come from a compact region <60pc, possibly containing a second AGN. The combined H2 mass derived for both objects using the [CI]2-1 emission is 3.3x10^10Msun. The total CO(7-6)/[CI]2-1 line flux ratio of 0.2 suggests a low excitation molecular gas reservoir and/or enhanced atomic carbon in cosmic-ray dominated regions. We detect spatially-resolved H2O 2_{11}-2_{02} emission - for the first time in a high-z un-lensed galaxy - near the outer radio lobe to the east, and near the bend of the radio jet to the west of the radio galaxy. No underlying 246GHz conti...

  9. The ALMA view of the Antennae galaxy collision

    Science.gov (United States)

    Herrera, Cinthya N.; Boulanger, Francois; Falgarone, Edith G.; Pineau des Forets, Guillaume; Garcia-Burillo, Santiago; Iono, Daisuke; Guillard, Pierre

    2015-08-01

    The Antennae galaxies are a spectacular example of a burst of star formation triggered by the encounter of two galaxies, being an ideal source to understand how the dynamics of galaxy mergers trigger the star formation. Most of the newly formed stars are observed in massive clusters, potentially the progenitors of globular clusters. In the Antennae, their formation must involve a complex interplay of merger-driven gas dynamics, turbulence fed by galaxy interaction and dissipation of the gas kinetic energy.We will present archive ALMA CO(3-2) and new 13CO(2-1) and C18O(2-1) Cycle 2 observations, at 50 pc resolution, and VLT near-IR H2 spectro-imaging observations. We will show an analysis of the excitation of the CO gas in the region where the two galaxies collide, and demonstrate that most of the H2 emission associated with this gas is shock-excited. We will focus on a compact, bright H2 source, associated with cold molecular gas and dust continuum emission, located where the velocity gradient in the interaction region is observed to be the largest. The characteristics of this source suggest that we are witnessing the formation, initiated by turbulent dissipation, of a cloud massive enough to form a super star cluster within 1 Myr.

  10. Further ALMA observations and detailed modeling of the Red Rectangle

    CERN Document Server

    Bujarrabal, V; Alcolea, J; Santander-Garcia, M; Van Winckel, H; Contreras, C Sanchez

    2016-01-01

    We present new high-quality ALMA observations of the Red Rectangle (a well known post-AGB object) in C17O J=6-5 and H13CN J=4-3 line emission and results from a new reduction of already published 13CO J=3-2 data. A detailed model fitting of all the molecular line data, including previous maps and single-dish spectra, was performed using a sophisticated code. These observations and the corresponding modeling allowed us to deepen the analysis of the nebular properties. We also stress the uncertainties in the model fitting. We confirm the presence of a rotating equatorial disk and an outflow, which is mainly formed of gas leaving the disk. The mass of the disk is ~ 0.01 Mo, and that of the CO-rich outflow is ~ 10 times smaller. High temperatures of ~ 100 K are derived for most components. From comparison of the mass values, we roughly estimate the lifetime of the rotating disk, which is found to be of about 10000 yr. Taking data of a few other post-AGB composite nebulae into account, we find that the lifetimes o...

  11. Fast single-dish scans of the Sun using ALMA

    CERN Document Server

    Phillips, Neil; Bastian, Tim; Hudson, Hugh; Marson, Ralph; Wedemeyer, Sven

    2015-01-01

    We have implemented control and data-taking software that makes it possible to scan the beams of individual ALMA antennas to perform quite complex patterns while recording the signals at high rates. We conducted test observations of the Sun in September and December, 2014. The data returned have excellent quality; in particular they allow us to characterize the noise and signal fluctuations present in this kind of observation. The fast-scan experiments included both Lissajous patterns covering rectangular areas, and double-circle patterns of the whole disk of the Sun and smaller repeated maps of specific disk-shaped targets. With the latter we find that we can achieve roughly Nyquist sampling of the Band~6 (230~GHz) beam in 60~s over a region 300$"$ in diameter. These maps show a peak-to-peak brightness-temperature range of up to 1000~K, while the time-series variability at any given point appears to be of order 0.5 percent RMS over times of a few minutes. We thus expect to be able to separate the noise contr...

  12. ALMA Observations of HCN and its Isotopologues on Titan

    CERN Document Server

    Molter, Edward M; Cordiner, Martin A; Serigano, Joseph; Irwin, Patrick G J; Teanby, Nicholas A; Charnley, Steven B; Lindberg, Johan E

    2016-01-01

    We present sub-millimeter spectra of HCN isotopologues on Titan, derived from publicly available ALMA flux calibration observations of Titan taken in early 2014. We report the detection of a new HCN isotopologue on Titan, H$^{13}$C$^{15}$, and confirm an earlier report of detection of DCN. We model high signal-to-noise observations of HCN, H$^{13}$CN, HC$^{15}$N, DCN, and H$^{13}$C$^{15}$ to derive abundances and infer the following isotopic ratios: $^{12}$C/$^{13}$C = 89.8 $\\pm$ 2.8, $^{14}$N/$^{15}$N = 72.3 $\\pm$ 2.2, D/H = (2.5 $\\pm$ 0.2)$\\times$10$^{-4}$, and HCN/H$^{13}$C$^{15}$ = 5800 $\\pm$ 270 (1$\\sigma$ errors). The carbon and nitrogen ratios are consistent with and improve on the precision of previous results, confirming a factor of $\\sim$2.3 elevation in $^{14}$N/$^{15}$N in HCN compared to N$_2$ and a lack of fractionation in $^{12}$C/$^{13}$C from the protosolar value. This is the first published measurement of D/H in a nitrile species on Titan, and we find evidence for a factor of $\\sim$2 deuteri...

  13. ALMA observations of the kinematics and chemistry of disc formation

    CERN Document Server

    Lindberg, Johan E; Brinch, Christian; Haugbølle, Troels; Bergin, Edwin A; Harsono, Daniel; Persson, Magnus V; Visser, Ruud; Yamamoto, Satoshi

    2014-01-01

    Context: The R CrA cloud hosts a handful of Class 0/I low-mass young stellar objects. The chemistry and physics at scales $>500$ AU in this cloud are dominated by the irradiation from the nearby Herbig Be star R CrA. The luminous large-scale emission makes it necessary to use high-resolution spectral imaging to study the chemistry and dynamics of the inner envelopes and discs of the protostars. Aims: We aim to better understand the structure of the inner regions of these protostars and in particular the interplay between the chemistry and the presence of discs. Methods: Using Atacama Large Millimeter/submillimeter Array (ALMA) high-resolution spectral imaging interferometry observations, we study the molecular line and dust continuum emission at submillimetre wavelengths. Results: We detect dust continuum emission from four circumstellar discs around Class 0/I objects within the R CrA cloud. Towards IRS7B we detect C$^{17}$O emission showing a rotation curve consistent with a Keplerian disc with a well-define...

  14. Detection of Infall in the Protostar B335 with ALMA

    CERN Document Server

    Evans, Neal J; Lee, Jeong-Eun; Jørgensen, Jes K; Choi, Minho; Myers, Philip C; Mardones, Diego

    2015-01-01

    Observations of the isolated globule B335 with ALMA have yielded absorption features against the continuum that are redshifted from the systemic velocity in both HCN and HCO$^+$ lines. These features provide unambiguous evidence for infall toward a central luminosity source. Previously developed models of inside-out collapse can match the observed line profiles of HCN and HCO$^+$ averaged over the central 50 AU. At the new distance of 100 pc, the inferred infall radius is 0.012 pc, the mass infall rate is $3 \\times 10^{-6}$ solar masses per year, the age is 50,000 years, and the accumulated mass in the central zone is 0.15 solar masses, most of which must be in the star or in parts of a disk that are opaque at 0.8 mm. The continuum detection indicates an optically thin mass (gas and dust) of only $7.5\\times 10^{-4}$ solar masses in the central region, consistent with only a very small disk mass.

  15. Measuring Turbulence in TW Hya with ALMA: Methods and Limitations

    CERN Document Server

    Teague, Richard; Semenov, Dmitry; Henning, Thomas; Dutrey, Anne; Pietu, Vincent; Birnstiel, Tilman; Chapillon, Edwige; Hollenbach, David; Gorti, Uma

    2016-01-01

    We obtain high spatial and spectral resolution images of the CO J=2-1, CN N=2-1 and CS J=5-4 emission with ALMA in Cycle~2. The radial distribution of the turbulent broadening is derived with three approaches: two `direct' and one modelling. The first requires a single transition and derives \\Tex{} directly from the line profile, yielding a \\vturb{}. The second assumes two different molecules are co-spatial thus their relative linewidths allow for a calculation of \\Tkin{} and \\vturb{}. Finally we fit a parametric disk model where physical properties of the disk are described by power laws, to compare our `direct' methods with previous values. The two direct methods were limited to the outer $r > 40$~au disk due to beam smear. The direct method found \\vturb{} ranging from $\\approx$~\\vel{130} at 40~au, dropping to $\\approx$~\\vel{50} in the outer disk, qualitatively recovered with the parametric model fitting. This corresponds to roughly $0.2 - 0.4~c_s$. CN was found to exhibit strong non-LTE effects outside $r ...

  16. The Early ALMA View of the FU Ori Outburst System

    CERN Document Server

    Hales, A S; Dent, W R D; Andrews, S M; Eisner, J A; Cieza, L A

    2015-01-01

    We have obtained ALMA Band 7 observations of the FU Ori outburst system at 0.6"x0.5" resolution to measure the link between the inner disk instability and the outer disk through sub-mm continuum and molecular line observations. Our observations detect continuum emission which can be well modeled by two unresolved sources located at the position of each binary component. The interferometric observations recover the entire flux reported in previous single-dish studies, ruling out the presence of a large envelope. Assuming that the dust is optically thin, we derive disk dust masses of $2\\times 10^{-4}$M$_{\\odot}$ and $8\\times 10^{-5}$M$_{\\odot}$, for the north and south components respectively. We place limits on the disks' radii of $r<$45 AU. We report the detection of molecular emission from $^{12}$CO(3-2), HCO$^{+}$(4-3) and from HCN(4-3). The $^{12}$CO appears widespread across the two binary components, and is slightly more extended than the continuum emission. The denser gas tracer HCO$^{+}$ peaks close...

  17. A sensitive ALMA Band 10 SIS receiver engineering model

    International Nuclear Information System (INIS)

    We have developed a single polarization engineering model of the Atacama Large Millimeter/Submillimeter Array (ALMA) Band 10 (0.78-0.95 THz) receivers. The front-end optics comprises a pair of ellipsoidal mirrors and a corrugated feed horn. A waveguide mixer block is attached to the feed horn in which an NbTiN-based superconductor-insulator-superconductor (SIS) mixer chip, which uses a quartz substrate, is mounted onto a WR-1.2 full-height waveguide. The SIS mixer employs two Nb/AlOx/Nb junctions and an NbTiN/SiO2/Al microstrip tuning circuit. A very wide intermediate frequency (IF) system with a bandwidth of 4-12 GHz is employed. The receiver demonstrated double-sideband (DSB) noise temperatures of below 240 K at local oscillator (LO) frequencies ranging from 792 to 945 GHz, without any correction for loss in front of the receiver. The lowest DSB receiver noise temperature, 179 K, was obtained at the center frequency of the designed band, which corresponds to about 4 quanta. These results represent state-of-the-art sensitivity for a receiver at an operating physical temperature of 4 K.

  18. Ethyl cyanide on Titan: Spectroscopic detection and mapping using ALMA

    CERN Document Server

    Cordiner, M A; Nixon, C A; Irwin, P G J; Teanby, N A; Charnley, S B; Mumma, M J; Kisiel, Z; Serigano, J; Kuan, Y -J; Chuang, Y -L; Wang, K -S

    2014-01-01

    We report the first spectroscopic detection of ethyl cyanide (C$_2$H$_5$CN) in Titan's atmosphere, obtained using spectrally and spatially resolved observations of multiple emission lines with the Atacama Large Millimeter/submillimeter array (ALMA). The presence of C$_2$H$_5$CN in Titan's ionosphere was previously inferred from Cassini ion mass spectrometry measurements of C$_2$H$_5$CNH$^+$. Here we report the detection of 27 rotational lines from C$_2$H$_5$CN (in 19 separate emission features detected at $>3\\sigma$ confidence), in the frequency range 222-241 GHz. Simultaneous detections of multiple emission lines from HC$_3$N, CH$_3$CN and CH$_3$CCH were also obtained. In contrast to HC$_3$N, CH$_3$CN and CH$_3$CCH, which peak in Titan's northern (spring) hemisphere, the emission from C$_2$H$_5$CN is found to be concentrated in the southern (autumn) hemisphere, suggesting a distinctly different chemistry for this species, consistent with a relatively short chemical lifetime for C$_2$H$_5$CN. Radiative transf...

  19. Water around IRAS15398-3359 observed with ALMA

    CERN Document Server

    Bjerkeli, P; Bergin, E A; Frimann, S; Harsono, D; Jacobsen, S K; Lindberg, J E; Persson, M; Sakai, N; van Dishoeck, E F; Visser, R; Yamamoto, S

    2016-01-01

    How protostars accrete mass is one of the fundamental problems of star formation. High column densities and complex kinematical structures make direct observations challenging and they only provide a snapshot. Chemical tracers provide an interesting alternative to characterise the infall histories of protostars. Previous observations of H13CO+ towards the low-mass protostar IRAS15398-3359 showed a depression in the abundance. This is a sign of destruction of HCO+ by an enhanced presence of gaseous water in an extended region, possibly related to a recent burst in the accretion. Direct observations of water vapour can determine the exact extent of the emission and confirm the hypothesis that HCO+ is indeed a good tracer of the water snow-line. IRAS15398 was observed using ALMA at 0.5" resolution. Maps of HDO(101-000) and H218O(414-321) were taken simultaneously with observations of the CS(8-7) and N2H+(5-4) lines and continuum at 0.65 and 0.75 mm. The maps were interpreted using dust radiative transfer calcula...

  20. Evidence for outflows in z ~ 6 galaxies with ALMA

    CERN Document Server

    Gallerani, S; Feruglio, C; Ferrara, A; Maiolino, R; Vallini, L; Riechers, D A

    2016-01-01

    We present the first attempt to detect outflows from galaxies approaching the Epoch of Reionization (EoR) using a sample of 9 star-forming (5 < SFR < 70 Msun/yr) z ~ 6 galaxies for which high-quality spectra of the [CII]158 micron line has been previously obtained with ALMA. We first fit each line with a Gaussian function and compute the residuals by subtracting the best fitting model from the data. We combine the residuals of all sample galaxies and find that the total signal is characterized by a flux excess that can be ascribed to broad wings of the [CII] line, which we interpret as a signature of starburst-driven outflows. The tentatively inferred outflow rate is dM/dt ~ 65 Msun/yr. Our interpretation is consistent with results from zoomed hydro- simulations of Dahlia, a z ~ 7 galaxy (SFR ~ 100 Msun/yr) whose feedback-regulated star formation results in an outflow rate dM/dt ~ 30 Msun/yr. These results suggest that starburst-driven outflows are in place in the EoR. Deeper observations of the [CII] l...

  1. Resolving the planetesimal belt of HR 8799 with ALMA

    Science.gov (United States)

    Booth, Mark; Jordán, Andrés; Casassus, Simon; Hales, Antonio S.; Dent, William R. F.; Faramaz, Virginie; Matrà, Luca; Barkats, Denis; Brahm, Rafael; Cuadra, Jorge

    2016-07-01

    The star HR 8799 hosts one of the largest known debris discs and at least four giant planets. Previous observations have found evidence for a warm belt within the orbits of the planets, a cold planetesimal belt beyond their orbits and a halo of small grains. With the infrared data, it is hard to distinguish the planetesimal belt emission from that of the grains in the halo. With this in mind, the system has been observed with ALMA in band 6 (1.34 mm) using a compact array format. These observations allow the inner edge of the planetesimal belt to be resolved for the first time. A radial distribution of dust grains is fitted to the data using an MCMC method. The disc is best fitted by a broad ring between 145^{+12}_{-12} au and 429^{+37}_{-32} au at an inclination of 40^{+5}_{-6}° and a position angle of 51^{+8}_{-8}°. A disc edge at ˜145 au is too far out to be explained simply by interactions with planet b, requiring either a more complicated dynamical history or an extra planet beyond the orbit of planet b.

  2. ALMA Resolves the Nuclear Disks of Arp 220

    CERN Document Server

    Scoville, Nick; Walter, Fabian; Vlahakis, Catherine; Koda, Jin; Bout, Paul Vanden; Barnes, Joshua; Hernquist, Lars; Sheth, Kartik; Yun, Min; Sanders, David; Armus, Lee; Cox, Pierre; Thompson, Todd; Robertson, Brant; Zschaechner, Laura; Tacconi, Linda; Torrey, Paul; Hayward, Christopher C; Genzel, Reinhard; Hopkins, Phil; van der Werf, Paul; Decarli, Roberto

    2016-01-01

    We present 90 mas (37 pc) resolution ALMA imaging of Arp 220 in the CO (1-0) line and continuum at $\\lambda = 2.6$ mm. The internal gas distribution and kinematics of both galactic nuclei are well-resolved for the first time.In the more luminous West nucleus, the major gas and dust emission extends to 0.2\\arcsec radius (80 pc); the central resolution element shows a strong peak in the dust emission but a factor 3 dip in the CO line emission. In this nucleus, the dust is apparently optically thick ($\\tau_{\\rm 2.6mm} \\sim1$) at $\\lambda = 2.6$ mm with a dust emission brightness temperature $\\sim120$ K. The column of ISM at this nucleus is $\\rm N_{H2} \\geq 2\\times10^{26}$ cm$^{-2}$, corresponding to A$_V = 10^6$ mag and 1000 gr cm$^{-2}$. The East nucleus is somewhat more elongated with radial extent 0.3\\arcsec or $\\sim120$ pc. The derived kinematics of the nuclear disks provide a good fit to the line profiles sampled every 50 mas, yielding the emissivity distributions, the rotation curves and velocity dispersio...

  3. Baixando à Terra: uma análise crítica de um projeto de comercialização de produtos florestais não madeireiros em uma comunidade da Amazônia Oriental Coming down to Earth: a critical analysis of a project for the commercialization of non-timber forest products in a community of the Eastern Amazon

    OpenAIRE

    Cristina Herrero-Jáuregui; Benno Pokorny; Miguel A. Casado

    2011-01-01

    Muitas organizações governamentais e não governamentais (ONGs) investem esforços consideráveis para apoiar as populações dependentes da floresta, na extração e comercialização de produtos florestais não madeireiros (PFNM), para gerar ganhos econômicos de forma ecologicamente sustentável. Porém, o sucesso destes esforços agora tem sido bastante modesto, sendo que muitas das iniciat...

  4. MATÉRIA SECA E ABSORÇÃO DE NUTRIENTES EM FUNÇÃO DO ESPAÇAMENTO E DA DENSIDADE DE SEMEADURA EM ARROZ DE TERRA ALTA DRY MATTER AND NUTRIENT UPTAKE OF DRYLAND RICE RELATED TO ROW SPACING AND PLANT POPULATION

    Directory of Open Access Journals (Sweden)

    Carlos Alexandre Costa Crusciol

    1999-01-01

    Full Text Available Foi instalado um experimento em condições de campo, em um Latossolo Vermelho escuro, epi-eutrófico, textura argilosa, em Selvíria-MS, com arroz de sequeiro cv. IAC 201, estudando-se três espaçamentos entre fileiras (30, 40 e 50 cm e três densidades de semeadura (100, 150 e 200 sementes viáveis/m2. Foram avaliadas a produção de matéria seca da parte aérea no momento do florescimento e determinados os teores e quantidades de N, P, K, Ca, Mg e S absorvidos, assim como a eficiência de utilização de nutrientes. A redução do espaçamento entre fileiras aumentou a produção de matéria seca da parte aérea e a quantidade de nutrientes absorvidos. A variação da densidade de semeadura não afetou os parâmetros estudados. A redução do espaçamento entre fileiras proporcionou maior eficiência de utilização do Ca e diminuiu a do N e Mg. Os teores de nutrientes na matéria seca da parte aérea não foram afetados pela variação do espaçamento entre fileiras.A field experiment was conducted in a clayey Dark Red Latosol in Selviria, MS, Brazil, to study the effect of three row spacings (30, 40 and 50 cm and three seed densities (100, 150 and 200 viable seeds/m2 on plant dry matter yield, macronutrient (N, P, K, Ca, Mg and S uptake at flowering, and the nutrient use efficiency. A decrease in row spacing led to an increase in shoot dry matter production and nutrient uptake. There was no effect of plant densities on dry matter or nutrient uptake. The decrease in row spacing allowed a higher Ca use efficiency, but not for N and Mg. The concentration of the macronutrients in the shoots was not affected by spacing.

  5. Solar Observations with the Atacama Large Millimeter/submillimeter Array (ALMA)

    Science.gov (United States)

    Kobelski, A.; ALMA Solar Development Team

    2016-04-01

    The Atacama Large Millimeter/Submillimeter Array (ALMA) is a joint North American, European, and East Asian project that opens the mm-sub mm wavelength part of the electromagnetic spectrum for general astrophysical exploration, providing high-resolution imaging in frequency bands currently ranging from 84 GHz to 950 GHz (300 microns to 3 mm). It is located in the Atacama desert in northern Chile at an elevation of 5000 m. Despite being a general purpose instrument, provisions have been made to enable solar observations with ALMA. Radiation emitted at ALMA wavelengths originates mostly from the chromosphere, which plays an important role in the transport of matter and energy, and the in heating the outer layers of the solar atmosphere. Despite decades of research, the solar chromosphere remains a significant challenge: both to observe, owing to the complicated formation mechanisms of currently available diagnostics; and to understand, as a result of the complex nature of the structure and dynamics of the chromosphere. ALMA has the potential to change the scene substantially as it serves as a nearly linear thermometer at high spatial and temporal resolution, enabling us to study the complex interaction of magnetic fields and shock waves and yet-to-be-discovered dynamical processes. Moreover, ALMA will play an important role in the study of energetic emissions associated with solar flares at sub-THz frequencies.

  6. Supporting Student Learning in Computer Science Education via the Adaptive Learning Environment ALMA

    Directory of Open Access Journals (Sweden)

    Alexandra Gasparinatou

    2015-10-01

    Full Text Available This study presents the ALMA environment (Adaptive Learning Models from texts and Activities. ALMA supports the processes of learning and assessment via: (1 texts differing in local and global cohesion for students with low, medium, and high background knowledge; (2 activities corresponding to different levels of comprehension which prompt the student to practically implement different text-reading strategies, with the recommended activity sequence adapted to the student’s learning style; (3 an overall framework for informing, guiding, and supporting students in performing the activities; and; (4 individualized support and guidance according to student specific characteristics. ALMA also, supports students in distance learning or in blended learning in which students are submitted to face-to-face learning supported by computer technology. The adaptive techniques provided via ALMA are: (a adaptive presentation and (b adaptive navigation. Digital learning material, in accordance with the text comprehension model described by Kintsch, was introduced into the ALMA environment. This material can be exploited in either distance or blended learning.

  7. The Science Cases for Building a Band 1 Receiver Suite for ALMA

    CERN Document Server

    Di Francesco, J; Matthews, B C; Bartel, N; Bronfman, L; Casassus, S; Chitsazzadeh, S; Cunningham, M; Duchene, G; Geisbuesch, J; Hales, A; Ho, P T P; Houde, M; Iono, D; Kemper, F; Kepley, A; Koch, P M; Kohno, K; Kothes, R; Lai, S -P; Lin, K Y; Liu, S -Y; Mason, B; Maccarone, T J; Mizuno, N; Morata, O; Schieven, G; Scaife, A M M; Scott, D; Shang, H; Shimojo, M; Takakuwa, S; Wagg, J; Wootten, A; Yusef-Zadeh, F

    2013-01-01

    We present the various science cases for building Band 1 receivers as part of ALMA's ongoing Development Program. We describe the new frequency range for Band 1 of 35-52 GHz, a range chosen to maximize the receiver suite's scientific impact. We first describe two key science drivers: 1) the evolution of grains in protoplanetary disks and debris disks, and 2) molecular gas in galaxies during the era of re-ionization. Studies of these topics with Band 1 receivers will significantly expand ALMA's Level 1 Science Goals. In addition, we describe a host of other exciting continuum and line science cases that require ALMA's high sensitivity and angular resolution. For example, ALMA Band 1 continuum data will probe the Sunyaev-Zel'dovich Effect in galactic clusters, Very Small Grains and spinning dust, ionized jets from young stars, spatial and flaring studies of Sgr A*, the acceleration sites of solar flares, pulsar wind nebulae, radio supernovae, and X-ray binaries. Furthermore, ALMA Band 1 line data will probe che...

  8. Millimeter and Sub-millimeter High Resolution Spectroscopy: New Frontiers with ALMA

    Science.gov (United States)

    Ziurys, Lucy M.

    2016-06-01

    It is becoming increasingly clear that new laboratory data will be critical for the next decade of observations with the Atacama Large Millimeter Array (ALMA). The high spatial resolution offered by ALMA will probe new regions of molecular complexity, including the inner envelopes of evolved stars, regions dominated by UV radiation, and the densest cores of molecular clouds. New molecular lines will be discovered in the wide wavelength range covered by the ALMA bands, and high resolution, gas-phase spectroscopy are needed to provide crucial “rest frequencies.” In particular, highly accurate methods that measure millimeter and sub-millimeter rotational transitions, such as direct absorption and Fourier transform mm-wave techniques, are important, especially when coupled to exotic molecular production schemes. Recent ALMA studies of SH+ and larger organic species have already demonstrated the need for laboratory measurements. New laboratory work will likely be required for circumstellar refractory molecules, radicals and ions generated near photon-dominated regions (PDRs), and large, organic-type species. This talk will give an overview of current contributions of laboratory spectroscopy to ALMA observations, summarize relevant spectroscopic techniques, and provide input into future prospects and directions.

  9. Mercado de terras e trajetórias tecnológicas na Amazônia Land market and technological trajectories in Amazonia

    Directory of Open Access Journals (Sweden)

    Francisco de Assis Costa

    2012-08-01

    Full Text Available A dinâmica da economia rural na Amazônia tem sido observada através do fenômeno do desmatamento e avaliada basicamente pelos riscos ambientais e desigualdades distributivas a ela associadas. Este artigo indica possibilidades de mudanças ao mesmo tempo que demonstra os obstáculos a superar. Partindo da observação da economia agrária da região como totalidade em movimento, situa os fundamentos dessa evolução em seis trajetórias tecnológicas, explicitando as assimetrias de capacidade demonstradas entre as mesmas no contexto de suas relações com as instituições presentes. Entre estas, dispensa foco especial nas mediações que garantem a produção e o mercado de terras em relação ao qual indica providências de política que o contenha em dois momentos: no seu processo de produção, momento da transformação do ativo específico "Florestas Originárias" em "Terras com Mata" e no momento da legitimação do produto final em "Terras de Pasto" e "Terras para Lavoura".The dynamics of the rural economy in the Amazon has been observed through the phenomenon of deforestation and evaluated primarily by environmental risks and inequalities in distribution. The article indicates possibilities of change and, at the same time, demonstrates the obstacles to overcome. Starting from the observation of the agrarian economy of the region as a totality in motion, it establishes the foundation of the development on six technological trajectories, explaining the asymmetries of capacity between them in the context of their relations with institutions. Among these, special focus is led to the mediations that ensure production and land market. Regarding the latter, the article indicates policy measures to constrain it.

  10. 基于TerraScan的LiDAR数据处理%LiDAR' Data Processing Based on TerraScan

    Institute of Scientific and Technical Information of China (English)

    黄金浪

    2007-01-01

    介绍LiDAR技术的国内外发展情况,围绕LiDAR数据后处理软件TerraScan的应用,详细论述该软件的数据处理流程,特别针对LiDAR数据特点和处理技术难点提出笔者的看法.

  11. The Cultural Implications of Primary Health Care and the Declaration of Alma-Ata: The Health District of Kedougou, Senegal

    Science.gov (United States)

    Blanas, Demetri A.

    2008-01-01

    In 1978, the World Health Organization (WHO) and the international health community convoked a conference in Alma-Ata, Kazakhstan, to address global inequalities in health. The conference resulted in the publication of the "Declaration of Alma-Ata," which made the ambitious call "for urgent action by all governments, all health and development…

  12. Aptidão agrícola de terras com estimativa de risco climático para a cultura do milho utilizando geoprocessamento

    Directory of Open Access Journals (Sweden)

    M. J. S. Godoy

    2002-09-01

    Full Text Available O objetivo deste trabalho foi determinar a aptidão agrícola das terras para cultura do milho em sistema de produção tecnificado, a partir de dados extraídos de levantamento de solos em escala 1:50.000 e da estimativa do risco climático, usando um sistema de informações geográficas. A área de estudo foi a bacia hidrográfica do rio Jardim, no Distrito Federal. Utilizou-se um modelo de balanço hídrico para simular o risco climático para a cultura do milho (Zea mays L., considerando nove datas de plantio. Foram definidos valores quantitativos para cada um das propriedades condicionadoras da produtividade do milho em áreas de cerrado e, por meio de algoritmos de lógica booleana estabelecidos com base em critérios definidos em tabelas-guia previamente elaboradas, foram realizados cruzamentos consecutivos que permitiram a elaboração de mapas de aptidão agrícola das terras para a cultura do milho, com cinco classes, que evidenciaram a variação temporal da aptidão. Constatou-se que 66,5 % da área total não apresentou limitações físicas, 96% das terras foram restritas em fertilidade e o período de menor risco climático foi de 11 a 20/10.

  13. First North American Antenna Enables Next Phase in Joint ALMA Observatory

    Science.gov (United States)

    2009-02-01

    Astronomers celebrated today the formal acceptance of the first North American antenna by the Joint ALMA Observatory. ALMA, the Atacama Large Millimeter/submillimeter Array, is a gathering armada of short-wavelength radio telescopes whose combined power will enable astronomers to probe with unprecedented sharpness phenomena and regions that are beyond the reach of visible-light telescopes. The observatory is being assembled high in the Chilean Andes by a global partnership. The 12-meter-diameter antenna delivered today is the first of twenty-five being provided by North America’s ALMA partners, whose efforts are led by the National Radio Astronomy Observatory (NRAO) and supported by the U.S. National Science Foundation (NSF) in cooperation with the National Research Council of Canada and the National Science Council of Taiwan. The antenna was manufactured by General Dynamics SATCOM Technologies. The acceptance comes just weeks after the first ALMA antenna, produced under the direction of the National Astronomical Observatory of Japan on behalf of ALMA’s East Asian partners, was handed over to the observatory. “These ALMA antennas are technological marvels,” said Thijs de Graauw, ALMA Director. “They are more precise and more capable than any ever made. Their performance in the harsh winds and temperatures of our high-altitude site bodes well for the observatory’s future.” A single 12-meter antenna’s dish is bigger than the largest optical telescope’s reflective mirror, but to match the sharpness achieved by an optical telescope, a millimeter-wavelength dish would have to be impossibly large, miles across. ALMA will combine signals from dozens of antennas spread across miles of desert to synthesize the effective sharpness of such a single, gigantic antenna. The process involves analysis of the ways in which the signals coming from each antenna interfere with one another, and is called interferometry. “This is a major milestone for the ALMA

  14. “Ascent is made from earth to heaven”: Marx, Engels and religion - doi: 10.4025/actascihumansoc.v35i1.17256 “Aqui é da terra que se sobe ao céu”: Marx, Engels e a religião - doi: 10.4025/actascihumansoc.v35i1.17256

    Directory of Open Access Journals (Sweden)

    Rui Bragado Sousa

    2013-10-01

    Full Text Available The frequently controversial relationship between Marxism and Religion, especially with Christianity, is discussed in current article. A detailed study of Marx´s early works, from 1841 to 1848, the year of the publication of the Communist Manifesto is required for the specific analysis of Marxist thinking on religion. The latter is actually the author´s philosophical genesis (derived from Hegel and Feuerbach rather than as an economist. Other works by Friedrich Engels addressing the religious phenomenon will also be discussed. The development of ‘historical materialism’ in the 20th century, coupled to their orthodox and heterodox stance, their affinities, similarities and breaks with the Catholic Clergy will be investigated. Finally, the comprehension of practice in its specific example, the Liberation Theology in Latin America, will be endeavored. There are no claims for a theoretical or philosophical discussion of Historical Materialism and Idealism or other metaphysical abstractions, but historical, social and political factors that produce the theme.   O presente artigo pretende discutir a relação, muitas vezes controversa, entre marxismo e religião, sobretudo com o cristianismo. Para a análise específica do pensamento marxiano acerca da religião se fez necessário um estudo detalhado de todas as obras de juventude de Marx, de 1841 a 1848, ano de publicação do Manifesto Comunista, uma vez que esta produção reflete o autor em sua gênese filosófica (hegeliana e feurbachiana e menos economista; além de algumas obras de Friedrich Engels que também abordam o fenômeno religioso. Na sequência, observam-se os desdobramentos dos ‘materialismos históricos’ no século XX, nas suas vertentes ortodoxas e heterodoxas, suas afinidades, aproximações e rupturas com o Clero Católico. Por fim, busca-se a compreensão da práxis em seu exemplo específico, a Teologia da Libertação na América Latina. Não temos a pretensão de

  15. The ALMA Band 9 receiver - Design, construction, characterization, and first light

    CERN Document Server

    Baryshev, A M; Mena, F P; Klapwijk, T M; van Kempen, T A; Hogerheijde, M R; Jackson, B D; Adema, J; Gerlofsma, G J; Bekema, M E; Barkhof, J; de Haan-Stijkel, L H R; Bemt, M van den; Koops, A; Keizer, K; Pieters, C; Jagt, J Koops van het; Schaeffer, H H A; Zijlstra, T; Kroug, M; Lodewijk, C F J; Wielinga, K; Boland, W; de Graauw, M W M; van Dishoeck, E F; Jager, H; Wild, W

    2015-01-01

    We describe the design, construction, and characterization of the Band 9 heterodyne receivers (600-720 GHz) for the Atacama Large Millimeter / submillimeter Array (ALMA). The ALMA Band 9 receiver units ("cartridges"), which are installed in the telescope's front end, have been designed to detect and down-convert two orthogonal linear polarization components of the light collected by the ALMA antennas. The light entering the front end is refocused with a compact arrangement of mirrors, which is fully contained within the cartridge. The arrangement contains a grid to separate the polarizations and two beam splitters to combine each resulting beam with a local oscillator signal. The combined beams are fed into independent double-sideband mixers, each with a corrugated feedhorn coupling the radiation by way of a waveguide with backshort cavity into an impedance-tuned SIS junction that performs the heterodyne down-conversion. Finally, the generated intermediate frequency signals are amplified by cryogenic and room...

  16. The European ALMA Regional Centre Network: A Geographically Distributed User Support Model

    Science.gov (United States)

    Hatziminaoglou, E.; Zwaan, M.; Andreani, P.; Barta, M.; Bertoldi, F.; Brand, J.; Gueth, F.; Hogerheijde, M.; Maercker, M.; Massardi, M.; Muehle, S.; Muxlow, Th.; Richards, A.; Schilke, P.; Tilanus, R.; Vlemmings, W.; Afonso, J.; Messias, H.

    2015-12-01

    In recent years there has been a paradigm shift from centralised to geographically distributed resources. Individual entities are no longer able to host or afford the necessary expertise in-house, and, as a consequence, society increasingly relies on widespread collaborations. Although such collaborations are now the norm for scientific projects, more technical structures providing support to a distributed scientific community without direct financial or other material benefits are scarce. The network of European ALMA Regional Centre (ARC) nodes is an example of such an internationally distributed user support network. It is an organised effort to provide the European ALMA user community with uniform expert support to enable optimal usage and scientific output of the ALMA facility. The network model for the European ARC nodes is described in terms of its organisation, communication strategies and user support.

  17. Magnetic fields in protoplanetary disks: from MHD simulations to ALMA observations

    CERN Document Server

    Bertrang, Gesa H -M; Wolf, Sebastian

    2016-01-01

    Magnetic fields significantly influence the evolution of protoplanetary disks and the formation of planets, following the predictions of numerous magnetohydrodynamic (MHD) simulations. However, these predictions are yet observationally unconstrained. To validate the predictions on the influence of magnetic fields on protoplanetary disks, we apply 3D radiative transfer simulations of the polarized emission of aligned aspherical dust grains that directly link 3D global non-ideal MHD simulations to ALMA observations. Our simulations show that it is feasible to observe the predicted toroidal large-scale magnetic field structures, not only in the ideal observations but also with high-angular resolution ALMA observations. Our results show further that high angular resolution observations by ALMA are able to identify vortices embedded in outer magnetized disk regions.

  18. High-Angular-Resolution and High-Sensitivity Science Enabled by Beamformed ALMA

    CERN Document Server

    Fish, Vincent; Anderson, James; Asada, Keiichi; Baudry, Alain; Broderick, Avery; Carilli, Chris; Colomer, Francisco; Conway, John; Dexter, Jason; Doeleman, Sheperd; Eatough, Ralph; Falcke, Heino; Frey, Sándor; Gabányi, Krisztina; Gálvan-Madrid, Roberto; Gammie, Charles; Giroletti, Marcello; Goddi, Ciriaco; Gómez, Jose L; Hada, Kazuhiro; Hecht, Michael; Honma, Mareki; Humphreys, Elizabeth; Impellizzeri, Violette; Johannsen, Tim; Jorstad, Svetlana; Kino, Motoki; Körding, Elmar; Kramer, Michael; Krichbaum, Thomas; Kudryavtseva, Nadia; Laing, Robert; Lazio, Joseph; Loeb, Abraham; Lu, Ru-Sen; Maccarone, Thomas; Marscher, Alan; Mart'ı-Vidal, Iván; Martins, Carlos; Matthews, Lynn; Menten, Karl; Miller, Jon; Miller-Jones, James; Mirabel, Félix; Muller, Sebastien; Nagai, Hiroshi; Nagar, Neil; Nakamura, Masanori; Paragi, Zsolt; Pradel, Nicolas; Psaltis, Dimitrios; Ransom, Scott; Rodr'\\iguez, Luis; Rottmann, Helge; Rushton, Anthony; Shen, Zhi-Qiang; Smith, David; Stappers, Benjamin; Takahashi, Rohta; Tarchi, Andrea; Tilanus, Remo; Verbiest, Joris; Vlemmings, Wouter; Walker, R Craig; Wardle, John; Wiik, Kaj; Zackrisson, Erik; Zensus, J Anton

    2013-01-01

    An international consortium is presently constructing a beamformer for the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile that will be available as a facility instrument. The beamformer will aggregate the entire collecting area of the array into a single, very large aperture. The extraordinary sensitivity of phased ALMA, combined with the extremely fine angular resolution available on baselines to the Northern Hemisphere, will enable transformational new very long baseline interferometry (VLBI) observations in Bands 6 and 7 (1.3 and 0.8 mm) and provide substantial improvements to existing VLBI arrays in Bands 1 and 3 (7 and 3 mm). The ALMA beamformer will have impact on a variety of scientific topics, including accretion and outflow processes around black holes in active galactic nuclei (AGN), tests of general relativity near black holes, jet launch and collimation from AGN and microquasars, pulsar and magnetar emission processes, the chemical history of the universe and the evolution of fundame...

  19. ALMA service data analysis and level 2 quality assurance with CASA

    CERN Document Server

    Petry, Dirk; Villard, Eric; Komugi, Shinya; Schnee, Scott

    2014-01-01

    The Atacama Large mm and sub-mm Array (ALMA) radio observatory is one of the world's largest astronomical projects. After the very successful conclusion of the first observation cycles Early Science Cycles 0 and 1, the ALMA project can report many successes and lessons learned. The science data taken interleaved with commissioning tests for the still continuing addition of new capabilities has already resulted in numerous publications in high-profile journals. The increasing data volume and complexity are challenging but under control. The radio-astronomical data analysis package "Common Astronomy Software Applications" (CASA) has played a crucial role in this effort. This article describes the implementation of the ALMA data quality assurance system, in particular the level 2 which is based on CASA, and the lessons learned.

  20. The European ALMA Regional Centre Network: A Geographically Distributed User Support Model

    CERN Document Server

    Hatziminaoglou, Evanthia; Andreani, Paola; Barta, Miroslav; Bertoldi, Frank; Brand, Jan; Gueth, Frederique; Hogerheijde, Michiel; Maercker, Matthias; Massardi, Marcella; Muehle, Stefanie; Muxlow, Thomas; Richards, Anita; Schilke, Peter; Tilanus, Remo; Vlemmings, Wouter; Afonso, Jose; Messias, Hugo

    2016-01-01

    In recent years there has been a paradigm shift from centralised to geographically distributed resources. Individual entities are no longer able to host or afford the necessary expertise in-house, and, as a consequence, society increasingly relies on widespread collaborations. Although such collaborations are now the norm for scientific projects, more technical structures providing support to a distributed scientific community without direct financial or other material benefits are scarce. The network of European ALMA Regional Centre (ARC) nodes is an example of such an internationally distributed user support network. It is an organised effort to provide the European ALMA user community with uniform expert support to enable optimal usage and scientific output of the ALMA facility. The network model for the European ARC nodes is described in terms of its organisation, communication strategies and user support.

  1. Avaliação da fragilidade ambiental da Bacia do Rio Nhundiaquara - PR

    OpenAIRE

    Silva, Maria Cristina Borges da

    2001-01-01

    Resumo: O propósito do presente trabalho foi o de analisar a fragilidade ambiental da bacia hidrográfica do Rio Nhundiaquara e cartografar indicadores da dinâmica ambiental, através de vários temas, como: geologia, solos, hidrografia, declividade, hipsometria, geomorfologia e uso da terra, com a preocupação de subsidiar a questão ambiental atr avés de uso do Geoprocessamento. A Bacia do Rio Nhundiaquara, abrange parte dos Municípios de Morretes, Antonina, Piraquara e Quatro Barras. A escolha ...

  2. Ecologia global contra diversidade cultural? Conservação da natureza e povos indígenas no Brasil: O Monte Roraima entre Parque Nacional e terra indígena Raposa-Serra do Sol Global ecology versus cultural diversity? Conservation of nature and indigenous peoples in Brazil. Roraima Mount: National Park vs. Raposa-Serra do Sol Indigenous Land

    OpenAIRE

    Vincenzo Lauriola

    2003-01-01

    As políticas de conservação da natureza em diversos paises estão cada vez mais ligadas à tomada de decisões ecológicas globais. Exemplos destas ligações variam entre a definição de prioridades e objetivos das políticas, à ação de ONG's ambientalistas internacionais, à existência de fundos e programas globais para o meio ambiente e o desenvolvimento sustentável, até as novas oportunidades econômicas representadas pelos mercados emergentes para serviços ecológicos globais e ''commodities ambien...

  3. Bulk and clay mineral composition indicate origin of terra rossa soils in Western Herzegovina

    OpenAIRE

    Durn, Goran; Ćorić, Radica; Tadej, Neven; Barudžija, Uroš; Rubinić, Vedran; Husnjak, Stjepan

    2014-01-01

    The B horizons of terra rossa soils developed on three different carbonate lithologies having variable insoluble residue contents were studied in Western Herzegovina. Comparison of  their composition and properties illustrates to what extent mineral (especially clay mineral assemblage) and particle size composition of those horizons and the insoluble residue of the underlying carbonate rocks can be used as indicators of the polygenetic nature of terra rossa in this region. Terra rossa B horiz...

  4. Terra Rossa in the Mediterranean Region: Parent Materials, Composition and Origin

    OpenAIRE

    Durn, G.

    2003-01-01

    In the past, the term “terra rossa” became quite a common indication for all limestone derived red soils in the Mediterranean region. Today, in some classification systems based on the Mediterranean climate as the major soil differentiating criterion, the term terra rossa is used as a name for the soil subclass “Modal Fersiallitic Red soil” when situated on limestones (Duchaufour, 1982). However, several national soil classifications (e.g. Croatian, Italian, Israeli) retained the term “terra ...

  5. SERENDIPITOUS ALMA DETECTION OF A DISTANT CO-EMITTING X-RAY BRIGHT GALAXY

    Energy Technology Data Exchange (ETDEWEB)

    Tamura, Yoichi [Institute of Astronomy, The University of Tokyo, Mitaka, Tokyo 181-0015 (Japan); Saito, Toshiki; Iono, Daisuke; Kawabe, Ryohei [National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588 (Japan); Tsuru, Takeshi G.; Uchida, Hiroyuki [Division of Physics and Astronomy, Kyoto University, Kitashirakawa-Oiwake-Cho, Sakyo, Kyoto 606-8502 (Japan); Yun, Min S. [Department of Astronomy, University of Massachusetts, 710 North Pleasant Street, Amherst, MA 01003 (United States); Espada, Daniel, E-mail: ytamura@ioa.s.u-tokyo.ac.jp [Joint ALMA Observatory, Alonso de Cordova 3107, Vitacura, Santiago 763 0355 (Chile)

    2014-02-01

    We report the detection of a distant star-forming galaxy, ALMA J010748.3–173028, which is identified by a 13σ emission line at 99.75 GHz (SΔv = 3.1 Jy km s{sup –1}), behind the nearby merging galaxies VV114 using the Atacama Large Millimeter/submillimeter Array (ALMA) Band 3. We also find an 880 μm counterpart with ALMA Band 7 (S {sub 880μm} = 11.2 mJy). A careful comparison of the intensities of the line and the continuum suggests that the line is a redshifted {sup 12}CO transition. A photometric redshift analysis using the infrared to radio data favors a CO redshift of z = 2.467, although z = 3.622 is acceptable. We also find a hard X-ray counterpart, suggesting the presence of a luminous (L {sub X} ∼ 10{sup 44} erg s{sup –1}) active galactic nucleus obscured by a large hydrogen column (N {sub H} ∼ 2 × 10{sup 23} cm{sup –2} if z = 2.47). A cosmological simulation shows that the chance detection rate of a CO-emitting galaxy at z > 1 with ≥1 Jy km s{sup –1} is ∼10{sup –3} per single ALMA field of view and 7.5 GHz bandwidth at 99.75 GHz. This demonstrates that ALMA has sufficient sensitivity to find an emission-line galaxy such as ALMA J010748.3–173028 even by chance, although the likelihood of stumbling across such a source is not high.

  6. ETHYL CYANIDE ON TITAN: SPECTROSCOPIC DETECTION AND MAPPING USING ALMA

    Energy Technology Data Exchange (ETDEWEB)

    Cordiner, M. A.; Palmer, M. Y.; Nixon, C. A.; Charnley, S. B.; Mumma, M. J.; Serigano, J. [NASA Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771 (United States); Irwin, P. G. J. [Atmospheric, Oceanic and Planetary Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU (United Kingdom); Teanby, N. A. [School of Earth Sciences, University of Bristol, Wills Memorial Building, Queen’s Road, Bristol, BS8 1RJ (United Kingdom); Kisiel, Z. [Institute of Physics, Polish Academy of Sciences, Al. Lotnikøw 32/46, 02-668 Warszawa (Poland); Kuan, Y.-J.; Chuang, Y.-L. [National Taiwan Normal University, Taipei 116, Taiwan (China); Wang, K.-S., E-mail: martin.cordiner@nasa.gov [Institute of Astronomy and Astrophysics, Academia Sinica, Taipei 106, Taiwan (China)

    2015-02-10

    We report the first spectroscopic detection of ethyl cyanide (C{sub 2}H{sub 5}CN) in Titan’s atmosphere, obtained using spectrally and spatially resolved observations of multiple emission lines with the Atacama Large Millimeter/submillimeter Array (ALMA). The presence of C{sub 2}H{sub 5}CN in Titan’s ionosphere was previously inferred from Cassini ion mass spectrometry measurements of C{sub 2}H{sub 5}CNH{sup +}. Here we report the detection of 27 rotational lines from C{sub 2}H{sub 5}CN (in 19 separate emission features detected at >3σ confidence) in the frequency range 222–241 GHz. Simultaneous detections of multiple emission lines from HC{sub 3}N, CH{sub 3}CN, and CH{sub 3}CCH were also obtained. In contrast to HC{sub 3}N, CH{sub 3}CN, and CH{sub 3}CCH, which peak in Titan’s northern (spring) hemisphere, the emission from C{sub 2}H{sub 5}CN is found to be concentrated in the southern (autumn) hemisphere, suggesting a distinctly different chemistry for this species, consistent with a relatively short chemical lifetime for C{sub 2}H{sub 5}CN. Radiative transfer models show that C{sub 2}H{sub 5}CN is most concentrated at altitudes ≳200 km, suggesting production predominantly in the stratosphere and above. Vertical column densities are found to be in the range (1–5) × 10{sup 14} cm{sup −2}.

  7. A web-based dashboard for the high-level monitoring of ALMA

    Science.gov (United States)

    Pietriga, Emmanuel; Filippi, Giorgio; Véliz, Luis; del Campo, Fernando; Ibsen, Jorge

    2014-07-01

    The ALMA radio-telescope's operations depend on the availability of high-level, easy-to-understand status information about all of its components. The ALMA Dashboard aims at providing an all-in-one-place near-real-time overview of the observatory's key elements and figures to both line and senior management. The Dashboard covers a wide range of elements beyond antennas, such as pads, correlator and central local oscillator. Data can be displayed in multiple ways, including: a table view, a compact view fitting on a single screen, a timeline showing detailed information over time, a logbook, a geographical map.

  8. HerMES: ALMA Imaging of Herschel-selected Dusty Star-forming Galaxies

    Science.gov (United States)

    Bussmann, R. S.; Riechers, D.; Fialkov, A.; Scudder, J.; Hayward, C. C.; Cowley, W. I.; Bock, J.; Calanog, J.; Chapman, S. C.; Cooray, A.; De Bernardis, F.; Farrah, D.; Fu, Hai; Gavazzi, R.; Hopwood, R.; Ivison, R. J.; Jarvis, M.; Lacey, C.; Loeb, A.; Oliver, S. J.; Pérez-Fournon, I.; Rigopoulou, D.; Roseboom, I. G.; Scott, Douglas; Smith, A. J.; Vieira, J. D.; Wang, L.; Wardlow, J.

    2015-10-01

    The Herschel Multi-tiered Extragalactic Survey (HerMES) has identified large numbers of dusty star-forming galaxies (DSFGs) over a wide range in redshift. A detailed understanding of these DSFGs is hampered by the limited spatial resolution of Herschel. We present 870 μm 0.″45 resolution imaging obtained with the Atacama Large Millimeter/submillimeter Array (ALMA) of a sample of 29 HerMES DSFGs that have far-infrared (FIR) flux densities that lie between the brightest of sources found by Herschel and fainter DSFGs found via ground-based surveys in the submillimeter region. The ALMA imaging reveals that these DSFGs comprise a total of 62 sources (down to the 5σ point-source sensitivity limit in our ALMA sample; σ ≈ 0.2 {mJy}). Optical or near-infrared imaging indicates that 36 of the ALMA sources experience a significant flux boost from gravitational lensing (μ \\gt 1.1), but only six are strongly lensed and show multiple images. We introduce and make use of uvmcmcfit, a general-purpose and publicly available Markov chain Monte Carlo visibility-plane analysis tool to analyze the source properties. Combined with our previous work on brighter Herschel sources, the lens models presented here tentatively favor intrinsic number counts for DSFGs with a break near 8 {mJy} at 880 μ {{m}} and a steep fall-off at higher flux densities. Nearly 70% of the Herschel sources break down into multiple ALMA counterparts, consistent with previous research indicating that the multiplicity rate is high in bright sources discovered in single-dish submillimeter or FIR surveys. The ALMA counterparts to our Herschel targets are located significantly closer to each other than ALMA counterparts to sources found in the LABOCA ECDFS Submillimeter Survey. Theoretical models underpredict the excess number of sources with small separations seen in our ALMA sample. The high multiplicity rate and small projected separations between sources seen in our sample argue in favor of interactions

  9. SXDF-ALMA 2 arcmin$^2$ Deep Survey: 1.1-mm Number Counts

    OpenAIRE

    Hatsukade, Bunyo; Kohno, Kotaro; Umehata, Hideki; Aretxaga, Itziar; Caputi, Karina I.; Dunlop, James S.; Ikarashi, Soh; Iono, Daisuke; Ivison, Rob J.; Lee, Minju; Makiya, Ryu; Matsuda, Yuichi, Stott, John P; Motohara, Kentaro; Nakanishi, Kouichiro; Ohta, Kouji

    2016-01-01

    We report 1.1 mm number counts revealed with the Atacama Large Millimeter/submillimeter Array (ALMA) in the Subaru/XMM-Newton Deep Survey Field (SXDF). The advent of ALMA enables us to reveal millimeter-wavelength number counts down to the faint end without source confusion. However, previous studies are based on the ensemble of serendipitously-detected sources in fields originally targeting different sources and could be biased due to the clustering of sources around the targets. We derive n...

  10. H-alpha features with hot onsets III. Fibrils in Lyman-alpha and with ALMA

    CERN Document Server

    Rutten, Robert J

    2016-01-01

    In H-alpha most of the solar surface is covered by a dense canopy of long opaque fibrils, but predictions for quiet-Sun observations with ALMA have ignored this fact. Comparison with Ly-alpha suggests that the large opacity of H-alpha fibrils is caused by hot precursor events. Application of a recipe that assumes momentary Saha-Boltzmann extinction during their hot onset to millimeter wavelengths suggests that ALMA will observe the H-alpha fibril canopy, not acoustic shocks underneath, and will yield data more interesting than if this canopy were transparent.

  11. ALMA observations of Lyman-alpha Blob 1: halo sub-structure illuminated from within

    OpenAIRE

    Geach, J. E.; Narayanan, D.; Matsuda, Y.; Hayes, M.; Mas-Ribas, Ll.; Dijkstra, M.; Steidel, C.C.; Chapman, S. C.; Feldmann, R.; Avison, A.; Agertz, O.; Ao, Y.; Birkinshaw, M.; Bremer, M. N.; Clements, D. L.

    2016-01-01

    We present new Atacama Large Millimeter/Submillimeter Array (ALMA) 850um continuum observations of the original Lyman-alpha Blob (LAB) in the SSA22 field at z=3.1 (SSA22-LAB01). The ALMA map resolves the previously identified submillimeter source into three components with total flux density S_850 = 1.68+/-0.06 mJy, corresponding to a star formation rate of ~150 M_sun/yr. The submillimeter sources are associated with several faint (m~27 mag) rest-frame ultraviolet sources identified in Hubble...

  12. Efeitos de diferentes usos da terra sobre as características químicas de um latossolo amarelo do estado do Pará Effect of land use and management on chemical properties of a yellow latosol in Pará State, Brazil

    Directory of Open Access Journals (Sweden)

    George Rodrigues da Silva

    2006-01-01

    Full Text Available Estudou-se o efeito de diferentes tipos de cobertura vegetal e manejo sobre algumas características químicas de um Latossolo Amarelo, textura média, da Estação Experimental "José Haroldo", da CEPLAC, Marituba-PA. Foram amostradas parcelas sob floresta secundária (FS explorada seletivamente, de aproximadamente 40 anos; de derruba e queima (DQ da mesma floresta secundária; sob cultura de cacau (CC; e, sob área de pastagem abandonada (PA. Em cada área estudada foram abertos três perfis de 2 m de profundidade, coletando-se amostras de solo dos horizontes Ap, AB, BA e B21, totalizando 48 amostras compostas, que foram analisadas para pH, carbono orgânico, nitrogênio total (N, fósforo disponível (P e bases trocáveis (K+, Ca2+, Mg2+ e Na+. Foram utilizadas análises de regressão para verificar as correlações existentes entre pH, nitrogênio total (N, fósforo disponível (P, matéria orgânica (MO e soma de bases (SB. Houve aumento no pH, na soma de bases e no fósforo disponível e diminuição no conteúdo de matéria orgânica em área de derruba e queima; aumento no conteúdo de matéria orgânica em área de pastagem abandonada; aumento do conteúdo de P do solo em área de cultivo de cacau. Não houve efeito do tipo de cobertura vegetal no N-total do solo. Houve correlações positivas entre o pH x matéria orgânica do solo e desta com os conteúdos de N e P do solo.The study was conducted at the Experimental Station "José Haroldo" of CEPLAC, Benevides, PA, to determine changes in chemical properties of a Yellow Latosol, medium texture, under different land cover systems. Samples were collected from the Ap, AB, BA, B21 horizons of the soil under a 40-year old secondary forest (FS, recent slash and burned secondary forest (DQ, cocoa cropping (CC and degraded grassland (PA. Soil samples were analyzed for pH, organic carbon (SOC, total nitrogen (N, available phosphorus (P and exchangeable bases (K+, Ca2+, Mg2+, Na+. Relationships

  13. Fragmentos da presença do pensamento idealista na história da construção das ciências da natureza

    OpenAIRE

    Antônio Fernandes Nascimento Júnior

    2001-01-01

    O propósito deste trabalho é estabelecer o caminho percorrido pelo idealismo em sua participação na construção das Ciências da Natureza desde a antigüidade até o final do século XX. Para os pensadores antigos, o mundo físico era governado pela idéia, e o modo de apreendê-la era por meio da contemplação da alma ou da observação e da lógica. Na escolástica essa idéia é Deus. Na renascença, Deus se torna matemático. Em Galileu a Matemática do mundo é entendida pela experimentação. Para Descartes...

  14. SEOS - Earsel’s project on science education through earth observation for high schools / SEOS - Projeto EARSeL de educação científica para escolas de ensino médio, através de conhecimentos de observação da terra

    Directory of Open Access Journals (Sweden)

    Rainer Reuter

    2012-10-01

    Full Text Available SEOS is an initiative for using remote sensing in science education curricula in high schools funded under the 6th Framework Programme of the European Commission (EC. Eleven partners from several European countries, in cooperation with the European Space Agency (ESA and teachers from European high schools, created e-learning tutorials for science students in high schools. The tutorials cover many disciplines such as physics, biology, geography, mathematics and engineering, emphasising the interdisciplinary character of remote sensing. They are the core element of the SEOS Learning Management System, allowing teachers to create their own courses, to distribute already available or new worksheets to the students for homework and to collect the results. Forums are available for teachers, students and other users to exchange information and discuss topics relevant for their study.ResumoSEOS é uma iniciativa em ciência da educação para a utilização de sensoriamento remoto nos programas curriculares em escolas de nível médio, financiadas no âmbito do 6 º Programa da Comissão Europeia (EC. Onze parceiros de vários países europeus, em cooperação com a Agência Espacial Européia (ESA e com professores de escolas européias de nível médio, criaram cursos-tutoriais de aprendizagem a distância para estudantes de ciências em escolas de ensino médio. Os tutoriais abrangem muitas disciplinas, como física, biologia, geografia, matemática e engenharia, enfatizando o caráter interdisciplinar do sensoriamento remoto. Essas disciplinas formam a base central do Sistema de Gestão de Aprendizagem a Distância SEOS, permitindo que professores criem seus próprios cursos, distribuindo material didático especializado e proporcionando interações via e-mail, para os alunos como tarefas de casa, recolhendo-se posteriormente os resultados. Fóruns estão disponíveis para professores, estudantes e outros usuários para trocar informações e

  15. Estudo económico-financeiro sobre a implementação de sistemas de uso eficiente da água numa habitação

    OpenAIRE

    Dias, Renato David Cunha Amaral

    2013-01-01

    A água é um recurso natural essencial a todas as formas de vida da terra. A disponibilidade deste recurso ditou a forma como as sociedades humanas se distribuíram e desenvolveram na Terra, ao longo dos tempos. A importância da preservação deste recurso, tanto em quantidade como em qualidade, é inequívoca, no sentido de assegurar a continuidade do homem e da vida no planeta. Este estudo surge com o objetivo analisar as formas de utilização doméstica da águ...

  16. 15 Years of Terra, 14 Years of Application Usage

    Science.gov (United States)

    Schmaltz, J. E.; Alarcon, C.; Boller, R. A.; Cechini, M. F.; Davies, D.; Fu, G.; Gunnoe, T.; Hall, J. R.; Huang, T.; Ilavajhala, S.; Jackson, M.; King, J.; McGann, M.; Murphy, K. J.; Roberts, J. T.; Thompson, C. K.; Ye, G.

    2014-12-01

    The instruments onboard the Terra spacecraft were designed for long-term Earth science research but not long after launch it became apparent that this data and imagery could be made available in near real-time for applications users. During the year 2000 fire season in the western United States, the US Forest Service approached NASA with a request to expedite MODIS fire detections. The Rapid Response system was created to generate fire detections as well as true color imagery in both swath and geo-referenced formats. This imagery was used by a wide variety of applications, such as NASA's AERONET program, the USDA Foreign Agricultural Service, Antarctic resupply shipping, flood mapping for relief agencies, Deepwater Horizon monitoring, volcanic ash monitoring, as well as print, televised, and Internet media. From 2004, the University of Maryland's Web Fire Mapper helped distribute fire detection information in a variety of formats. However, the applications community expressed the need for near-real time access to the underlying data. This requirement led to the development of the Land Atmosphere Near real-time Capability for EOS (Earth Observing System) (LANCE) in 2009. To achieve the latency requirements, many components of the EOS satellite operations, ground and science processing systems had to be made more efficient. In addition, products that require ancillary data were modified to use alternate inputs. Forty Terra MODIS data products are currently available from LANCE. LANCE also includes data from other instruments including AIRS, AMSR-E, MLS, and OMI. To help near-real time users navigate this large data offering, a new imagery service was begun in 2011 - Global Imagery Browse Services (GIBS). This service provides very responsive viewing using the Web Map Tile Service protocol. These programs will continue to support and expand the use of Terra data for near-real time applications well into the future.

  17. Pasolini, Marilyn e la partenza degli dei dalla terra

    OpenAIRE

    A. Bernardi

    2010-01-01

    Nella poesia che Pasolini aveva scritto per la morte di Marilyn Monroe, e che poi inserì nel film La rabbia (1963), letta dalla voce di Giorgio Bassani, l’autore fa rivivere un mito antichissimo, sulle orme di Ovidio e delle "Metamorfosi", Libro I: il mito di Astrea, la dea della giustizia che per ultima abbandonò la terra alla fine delle epoche felici dell’umanità, prima che Zeus mandasse il diluvio. Il saggio confronta i passi delle Metamorfosi con alcuni versi di Pasolini, individua somigl...

  18. Extension Across Tempe Terra, Mars from MOLA Topographic Measurements

    Science.gov (United States)

    Harrington, B. W.; Phillips, R. J.; Golombek, M. P.

    1999-01-01

    Previously, methods of estimating the extension across grabens and rifts on Mars by necessity relied on photogeologic methods such as shadow measurement, crater ellipticity, or photoclinometry. With the new data being returned by the Mars Global Surveyor, specifically from the Mars Orbital Laser Altimeter (MOLA), it is now possible to directly measure the depths of these structures and therefore to estimate more accurately the amount of extension. Here we provide an example of this new approach in the Tempe Terra region. Additional information is contained in the original extended abstract.

  19. Kan strategien for primaer sundhedstjeneste genoplives 30 år efter Alma-Ata?

    DEFF Research Database (Denmark)

    Lund, Stine; Probst, Helene Bilsted; Bygbjerg, Ib

    2010-01-01

    Thirty years ago the Alma-Ata declaration on primary health care was developed. Implementation has been compounded by inadequate financing, changing disease patterns and immature health systems, and there is an ongoing discussion between selective and comprehensive primary health care supporters...

  20. ESO Signs Largest-Ever European Industrial Contract For Ground-Based Astronomy Project ALMA

    Science.gov (United States)

    2005-12-01

    ESO, the European Organisation for Astronomical Research in the Southern Hemisphere, announced today that it has signed a contract with the consortium led by Alcatel Alenia Space and composed also of European Industrial Engineering (Italy) and MT Aerospace (Germany), to supply 25 antennas for the Atacama Large Millimeter Array (ALMA) project, along with an option for another seven antennas. The contract, worth 147 million euros, covers the design, manufacture, transport and on-site integration of the antennas. It is the largest contract ever signed in ground-based astronomy in Europe. The ALMA antennas present difficult technical challenges, since the antenna surface accuracy must be within 25 microns, the pointing accuracy within 0.6 arc seconds, and the antennas must be able to be moved between various stations on the ALMA site. This is especially remarkable since the antennas will be located outdoor in all weather conditions, without any protection. Moreover, the ALMA antennas can be pointed directly at the Sun. ALMA will have a collecting area of more than 5,600 square meters, allowing for unprecedented measurements of extremely faint objects. The signing ceremony took place on December 6, 2005 at ESO Headquarters in Garching, Germany. "This contract represents a major milestone. It allows us to move forward, together with our American and Japanese colleagues, in this very ambitious and unique project," said ESO's Director General, Dr. Catherine Cesarsky. "By building ALMA, we are giving European astronomers access to the world's leading submillimetre facility at the beginning of the next decade, thereby fulfilling Europe's desire to play a major role in this field of fundamental research." Pascale Sourisse, Chairman and CEO of Alcatel Alenia Space, said: "We would like to thank ESO for trusting us to take on this new challenge. We are bringing to the table not only our recognized expertise in antenna development, but also our long-standing experience in

  1. HerMES: ALMA Imaging of Herschel-selected Dusty Star-forming Galaxies

    CERN Document Server

    Bussmann, R S; Fialkov, A; Scudder, J; Hayward, C C; Cowley, W I; Bock, J; Calanog, J; Chapman, S C; Cooray, A; De Bernardis, F; Farrah, D; Fu, Hai; Gavazzi, R; Hopwood, R; Ivison, R J; Jarvis, M; Lacey, C; Loeb, A; Oliver, S J; Perez-Fournon, I; Rigopoulou, D; Roseboom, I G; Scott, Douglas; Smith, A J; Vieira, J D; Wang, L; Wardlow, J

    2015-01-01

    The Herschel Multi-tiered Extragalactic Survey (HerMES) has identified large numbers of dusty star-forming galaxies (DSFGs) over a wide range in redshift. A detailed understanding of these DSFGs is hampered by the poor spatial resolution of Herschel. We present 870um 0.45" imaging obtained in Cycle 0 with the Atacama Large Millimeter/submillimeter Array (ALMA) of a sample of 29 HerMES DSFGs. The ALMA imaging reveals that these DSFGs comprise a total of 62 sources (down to the 5-sigma limit in our ALMA sample; sigma~0.2 mJy). Optical imaging indicates that 36 of the ALMA sources experience a significant flux boost from gravitational lensing (mu>1.1), but only 6 are strongly lensed and show multiple images. We introduce and make use of uvmcmcfit, a general purpose and publicly available Markov chain Monte Carlo visibility plane analysis tool to analyze the source properties. Combined with our previous work on brighter Herschel sources, the lens models presented here tentatively favor intrinsic number counts for...

  2. Solar ALMA observations - A revolutionizing new view at our host star

    Science.gov (United States)

    Wedemeyer, Sven; Brajsa, Roman; Bastian, Timothy S.; Barta, Miroslav; Hales, Antonio; Yagoubov, Pavel; Hudson, Hugh; Loukitcheva, Maria; Fleishman, Gregory

    2015-08-01

    Observations of the Sun with the Atacama Large Millimeter/submillimeter Array (ALMA) have a large potential for revolutionizing our understanding of our host star with far reaching implications for stars in general. The radiation emitted at ALMA wavelengths originates mostly from the chromosphere - a complex and dynamic layer between the photosphere and the corona, which plays an important role in the transport of energy and matter and the heating of the outer layers of the solar atmosphere.Despite decades of intensive research, the chromosphere is still elusive and challenging to observe owing to the complicated formation mechanisms of currently available diagnostics. ALMA will change the scene substantially as it serves as a nearly linear thermometer at high spatial, temporal, and spectral resolution, enabling us to study the complex interaction of magnetic fields and shock waves and yet-to-be-discovered dynamical processes. Furthermore, radio recombination and molecular lines may have great diagnostic potential but need to be investigated first. These unprecedented capabilities promise important new findings for a large range of topics in solar physics including the structure, dynamics and energy balance of quiet Sun regions, active regions and sunspots, flares and prominences. As a part of ongoing development studies, an international network has been initiated, which aims at defining and preparing key solar science with ALMA through simulation studies: SSALMON -- Solar Simulations for the Atacama Large Millimeter Observatory Network (http://ssalmon.uio.no). Here, we give an overview of potential science cases.

  3. Alma Reed: A Unique Bicultural Bridge between North American and Mexican Cultures in the Twentieth Century.

    Science.gov (United States)

    Finer, Neal

    Alma Reed, a Californian who became a noted figure in Mexican art history, was a bicultural individual who introduced famed Mexican muralists to the United States art world and who became a legendary figure in Mexican folklore from the 1920s through the 1960s. This paper traces her career. (JB)

  4. MILLIMETER EMISSION STRUCTURE IN THE FIRST ALMA IMAGE OF THE AU Mic DEBRIS DISK

    NARCIS (Netherlands)

    MacGregor, Meredith A.; Wilner, David J.; Rosenfeld, Katherine A.; Andrews, Sean M.; Matthews, Brenda; Hughes, A. Meredith; Booth, Mark; Chiang, Eugene; Graham, James R.; Kalas, Paul; Kennedy, Grant; Sibthorpe, Bruce

    2013-01-01

    We present 1.3 mm ALMA Cycle 0 observations of the edge-on debris disk around the nearby, similar to 10 Myr old, M-type star AU Mic. These observations obtain 0 ''.6 (6 AU) resolution and reveal two distinct emission components: (1) the previously known dust belt that extends to a radius of 40 AU an

  5. A detailed mass distribution of a high-density core in Taurus with ALMA

    CERN Document Server

    Tokuda, Kazuki; Matsumoto, Tomoaki; Saigo, Kazuya; Kawamura, Akiko; Fukui, Yasuo; Inutsuka, Shu-ichiro; Machida, Masahiro N; Tomida, Kengo; Tachihara, Kengo; André, Philippe

    2016-01-01

    We present the results of ALMA observations of dust continuum emission and molecular rotational lines, including the ALMA Compact Array, toward a dense core MC27 (a.k.a. L1521F) in Taurus, which is considered to be at very early stage of star formation. Detailed column density distribution with a size scale from a few tens AU to ~10000 AU scale are revealed by combining the ALMA data and the single-dish data. The high angular resolution observation at 0.87 mm reveals that a protostellar source, MMS-1, is still not spatially resolved without gas association and a starless high-density core, MMS-2, has substructures both in dust and molecular emission. The averaged radial column density distribution of the inner part (r < 3000 AU) is N_H2 ~r^-0.4, clearly flatter than that of the outer part, ~r^-1.0. We found the complex velocity/spatial structure obtained with previous ALMA observations is located inside the inner flatter region, which may reflect the dynamical status of the dense core.

  6. The Latin Grammys and the ALMAs: Awards Programs, Cultural Epideictic, and Intercultural Pedagogy.

    Science.gov (United States)

    Gonzalez, Alberto; Heuman, Amy N.

    2003-01-01

    Examines the Latin Grammy Awards and the ALMA Awards as media texts that can be used as course content on Latino people and cultures in an intercultural communication course. Outlines a critical reformulation of epideictic rhetoric, provides background on the two programs, and interprets their import as epideictic discourse. (Contains 25…

  7. ALMA imaging of the CO snowline of the HD 163296 disk with DCO

    NARCIS (Netherlands)

    Mathews, G. S.; Klaassen, P. D.; Juhasz, A.; Harsono, D.; Chapillon, E.; van Dishoeck, E. F.; Espada, D.; de Gregorio-Monsalvo, I.; Hales, A.; Hogerheijde, M. R.; Mottram, J. C.; Rawlings, M. G.; Takahashi, S.; Testi, L.

    2013-01-01

    Context. The high spatial resolution and line sensitivity of the Atacama Large Millimeter/submillimeter Array (ALMA) opens the possibility of resolving emission from molecules in large samples of circumstellar disks. With an understanding of the conditions under which these molecules can have high a

  8. Measuring turbulence in TW Hydrae with ALMA: methods and limitations

    Science.gov (United States)

    Teague, R.; Guilloteau, S.; Semenov, D.; Henning, Th.; Dutrey, A.; Piétu, V.; Birnstiel, T.; Chapillon, E.; Hollenbach, D.; Gorti, U.

    2016-07-01

    Aims: We aim to obtain a spatially resolved measurement of velocity dispersions in the disk of TW Hya. Methods: We obtained images with high spatial and spectral resolution of the CO J = 2-1, CN N = 2-1 and CS J = 5-4 emission with ALMA in Cycle 2. The radial distribution of the turbulent broadening was derived with two direct methods and one modelling approach. The first method requires a single transition and derives Tex directly from the line profile, yielding a vturb. The second method assumes that two different molecules are co-spatial, which allows using their relative line widths for calculating Tkin and vturb. Finally we fitted a parametric disk model in which the physical properties of the disk are described by power laws, to compare our direct methods with previous values. Results: The two direct methods were limited to the outer r > 40 au disk because of beam smear. The direct method found vturb to range from ≈130 m s-1 at 40 au, and to drop to ≈50 m s-1 in the outer disk, which is qualitatively recovered with the parametric model fitting. This corresponds to roughly 0.2-0.4 cs. CN was found to exhibit strong non-local thermal equilibrium effects outside r ≈ 140 au, so that vturb was limited to within this radius. The assumption that CN and CS are co-spatial is consistent with observed line widths only within r ≲ 100 au, within which vturb was found to drop from 100 m s-1 (≈0.4 cs) to zero at 100 au. The parametric model yielded a nearly constant 50 m s-1 for CS (0.2-0.4 cs). We demonstrate that absolute flux calibration is and will be the limiting factor in all studies of turbulence using a single molecule. Conclusions: The magnitude of the dispersion is comparable with or below that predicted by the magneto-rotational instability theory. A more precise comparison would require reaching an absolute calibration precision of about 3%, or finding a suitable combination of light and heavy molecules that are co-located in the disk. The reduced

  9. The dynamics of massive starless cores with ALMA

    Energy Technology Data Exchange (ETDEWEB)

    Tan, Jonathan C. [Departments of Astronomy and Physics, University of Florida, Gainesville, FL 32611 (United States); Kong, Shuo; Butler, Michael J. [Department of Astronomy, University of Florida, Gainesville, FL 32611 (United States); Caselli, Paola [School of Physics and Astronomy, The University of Leeds, Leeds LS2 9JT (United Kingdom); Fontani, Francesco [INAF-Osservatorio Astrofisico di Arcetri, Largo Enrico Fermi 5, I-50125 Firenze (Italy)

    2013-12-20

    How do stars that are more massive than the Sun form, and thus how is the stellar initial mass function (IMF) established? Such intermediate- and high-mass stars may be born from relatively massive pre-stellar gas cores, which are more massive than the thermal Jeans mass. The turbulent core accretion model invokes such cores as being in approximate virial equilibrium and in approximate pressure equilibrium with their surrounding clump medium. Their internal pressure is provided by a combination of turbulence and magnetic fields. Alternatively, the competitive accretion model requires strongly sub-virial initial conditions that then lead to extensive fragmentation to the thermal Jeans scale, with intermediate- and high-mass stars later forming by competitive Bondi-Hoyle accretion. To test these models, we have identified four prime examples of massive (∼100 M {sub ☉}) clumps from mid-infrared extinction mapping of infrared dark clouds. Fontani et al. found high deuteration fractions of N{sub 2}H{sup +} in these objects, which are consistent with them being starless. Here we present ALMA observations of these four clumps that probe the N{sub 2}D{sup +} (3-2) line at 2.''3 resolution. We find six N{sub 2}D{sup +} cores and determine their dynamical state. Their observed velocity dispersions and sizes are broadly consistent with the predictions of the turbulent core model of self-gravitating, magnetized (with Alfvén Mach number m{sub A} ∼ 1) and virialized cores that are bounded by the high pressures of their surrounding clumps. However, in the most massive cores, with masses up to ∼60 M {sub ☉}, our results suggest that moderately enhanced magnetic fields (so that m{sub A} ≅ 0.3) may be needed for the structures to be in virial and pressure equilibrium. Magnetically regulated core formation may thus be important in controlling the formation of massive cores, inhibiting their fragmentation, and thus helping to establish the stellar IMF.

  10. Status of Terra MODIS Operation, Calibration, and Performance

    Science.gov (United States)

    Xiong, X.; Wenny, B.; Wu, A.; Angal, A.; Geng, X.; Chen, H.; Dodd, J.; Link, D.; Madhavan, S.; Chen, N.; Li, Y.; Iacangelo, S.; Barnes, W.; Salomonson, V.

    2014-01-01

    Since launch in December 1999, Terra MODIS has successfully operated for nearly 15 years, making continuous observations. Data products derived from MODIS observations have significantly contributed to a wide range of studies of key geophysical parameters of the earth's eco-system of land, ocean, and atmosphere, and their changes over time. The quality of MODIS data products relies on the dedicated effort to monitor and sustain instrument health and operation, to calibrate and update sensor parameters and properties, and to improve calibration algorithms. MODIS observations are made in 36 spectral bands, covering wavelengths from visible to long-wave infrared. The reflective solar bands (1-19 and 26) are primarily calibrated by a solar diffuser (SD) panel and regularly scheduled lunar observations. The thermal emissive bands (20-25 and 27- 36) calibration is referenced to an on-board blackbody (BB) source. On-orbit changes in the sensor spectral and spatial characteristics are monitored by a spectroradiometric calibration assembly (SRCA). This paper provides an overview of Terra MODIS on-orbit operation and calibration activities and implementation strategies. It presents and summarizes sensor on-orbit performance using nearly 15 years of data from its telemetry, on-board calibrators, and lunar observations. Also discussed in this paper are changes in sensor characteristics, corrections applied to maintain MODIS level 1B (L1B) data quality, and efforts for future improvements.

  11. Terras Indígenas do Espírito Santo sob o Regime Territorial de 1850

    Directory of Open Access Journals (Sweden)

    Vânia Maria Losada Moreira

    2002-01-01

    Full Text Available Neste artigo são analisados os direitos territoriais indígenas durante o século XIX, o impacto da Lei de Terras de 1850 sobre tais direitos, e o processo histórico-social de expulsão e de expropriação territorial, então em curso, contra as populações de índios do Espírito Santo (Tupiniquins, Puris e Botocudos.In this article, I discuss the territorial rights of the indigenous population during the 19th century, the impact of the Land Law of 1850 on such rights, and the historical and social process of territorial ouster and expropriation against the populations of Tupiniquim, Puri and Botocudo Indians.

  12. História da Geografia e Geografia Histórica: À procura dos híbridos

    OpenAIRE

    David Palacios; Marcelo Wener da Silva

    2012-01-01

    Este primeiro número da Nova Série da Terra Brasilis – Revista da Rede Brasileira de História da Geografia e Geografia Histórica apresenta as potencialidades da nossa área de trabalho e a amplitude e versatilidade do leque das nossas preocupações hibridas. Os artigos que apresentamos à continuação misturam em formas diferentes história do pensamento geográfico, história da cartografia, historia do ensino da geografia, história das instituições geográficas, geografia histórica, história urbana...

  13. Terra-Kleen Response Group, Inc. Solvent Extraction Technology Rapid Commercialization Initiative Report

    Science.gov (United States)

    Terra-Kleen Response Group Inc. (Terra-Kleen), has commercialized a solvent extraction technology that uses a proprietary extraction solvent to transfer organic constituents from soil to a liquid phase in a batch process at ambient temperatures. The proprietary solvent has a rel...

  14. Preliminary study of provenance and firing style of terra-cotta from Qinshihuang mausoleum

    International Nuclear Information System (INIS)

    Petrographic analyses of the shards of terra-cotta from Qinshihuang Mausoleum showed that the terra-cotta was made of sand-tempered pottery. Pure clay samples should be obtained from pottery body using a special method to remove the tempered sand. Both pure clay and soil samples from the area of Mountain Li were analyzed by ICP-AES, and then the composition data were handled with cluster analysis. Its result supported the conjecture that the material of terra-cotta was from Mountain Li area. The firing temperature of 4 shards of terra-cotta suggested that not every terra-cotta was made in the kiln, some individual might be made in the open air

  15. Revised spectroscopic parameters of SH+ from ALMA and IRAM 30 m observations

    Science.gov (United States)

    Müller, Holger S. P.; Goicoechea, Javier R.; Cernicharo, José; Agúndez, Marcelino; Pety, Jérôme; Cuadrado, Sara; Gerin, Maryvonne; Dumas, Gaëlle; Chapillon, Edwige

    2014-09-01

    Hydrides represent the first steps of interstellar chemistry. Sulfanylium (SH+), in particular, is a key tracer of energetic processes. We used ALMA and the IRAM 30 m telescope to search for the lowest frequency rotational lines of SH+ toward the Orion Bar, the prototypical photo-dissociation region illuminated by a strong UV radiation field. On the basis of previous Herschel/HIFI observations of SH+, we expected to detect emission of the two SH+ hyperfine structure (HFS) components of the NJ = 10-01 fine structure (FS) component near 346 GHz. While we did not observe any lines at the frequencies predicted from laboratory data, we detected two emission lines, each ~15 MHz above the SH+ predictions and with relative intensities and HFS splitting expected for SH+. The rest frequencies of the two newly detected lines are more compatible with the remainder of the SH+ laboratory data than the single line measured in the laboratory near 346 GHz and previously attributed to SH+. Therefore, we assign these new features to the two SH+ HFS components of the NJ = 10-01 FS component and re-determine its spectroscopic parameters, which will be useful for future observations of SH+, in particular if its lowest frequency FS components are studied. Our observations demonstrate the suitability of these lines for SH+ searches at frequencies easily accessible from the ground. This paper makes use of the following ALMA data: ADS/JAO.ALMA#2012.1.00352.S. ALMA is a partnership of ESO (representing its member states), NSF (USA) and NINS (Japan), together with NRC (Canada) and NSC and ASIAA (Taiwan), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO and NAOJ.This paper makes use of observations obtained with the IRAM 30 m telescope. IRAM is supported by INSU/CNRS (France), MPG (Germany), and IGN (Spain).Appendix A is available in electronic form at http://www.aanda.org

  16. Development and testing of Band 10 receivers for the ALMA project

    International Nuclear Information System (INIS)

    Highlights: •The ALMA Band 10 (787–950 GHz) SIS receivers have been developed. •The complex conductivity of NbTiN was measured by a THz-TDS for the mixer design. •Tens of Band 10 receivers have been produced and their performance was quite well. •The best achieved receiver noise temperature was 125 K corresponding to 3hf/kB. •Band 10 receiver installed in the ALMA antenna captured astronomical signals. -- Abstract: The production model of a dual polarization heterodyne receiver for the Atacama Large Millimeter/submillimteter Array (ALMA) telescope has been developed to operate in the 787–950 GHz frequency band. The receiver uses two double sideband (DSB) waveguide mixers with Nb/AlOx/Nb tunnel junctions and NbTiN/SiO2/Al microstrip tuning circuits on quartz substrate. A terahertz time domain spectrometer was used to characterize our NbTiN film for the tuning circuit design, which revealed that the complex conductivity of the film is described by the Mattis-Bardeen theory including a finite scattering time of 15 fs and a superconducting gap with a gap ratio 2Δ/kBTC ∼ 4.0. Tens of these receivers (out of the total production number of 73) have been successfully produced, and their performance is well within the stringent ALMA requirements. The best achieved DSB receiver noise temperature is 125 K, corresponding to about 3hf/kB for 4 K operation. One of Band 10 receivers has successfully been installed in the ALMA antenna for a test observation

  17. Assembly, integration, and verification (AIV) in ALMA: series processing of array elements

    Science.gov (United States)

    Lopez, Bernhard; Jager, Rieks; Whyborn, Nicholas D.; Knee, Lewis B. G.; McMullin, Joseph P.

    2012-09-01

    The Atacama Large Millimeter/submillimeter Array (ALMA) is a joint project between astronomical organizations in Europe, North America, and East Asia, in collaboration with the Republic of Chile. ALMA will consist of at least 54 twelve-meter antennas and 12 seven-meter antennas operating as an aperture synthesis array in the (sub)millimeter wavelength range. It is the responsibility of ALMA AIV to deliver the fully assembled, integrated, and verified antennas (array elements) to the telescope array. After an initial phase of infrastructure setup AIV activities began when the first ALMA antenna and subsystems became available in mid 2008. During the second semester of 2009 a project-wide effort was made to put in operation a first 3- antenna interferometer at the Array Operations Site (AOS). In 2010 the AIV focus was the transition from event-driven activities towards routine series production. Also, due to the ramp-up of operations activities, AIV underwent an organizational change from an autonomous department into a project within a strong matrix management structure. When the subsystem deliveries stabilized in early 2011, steady-state series processing could be achieved in an efficient and reliable manner. The challenge today is to maintain this production pace until completion towards the end of 2013. This paper describes the way ALMA AIV evolved successfully from the initial phase to the present steady-state of array element series processing. It elaborates on the different project phases and their relationships, presents processing statistics, illustrates the lessons learned and relevant best practices, and concludes with an outlook of the path towards completion.

  18. Development and testing of Band 10 receivers for the ALMA project

    Energy Technology Data Exchange (ETDEWEB)

    Uzawa, Y., E-mail: y.uzawa@nao.ac.jp [National Astronomical Observatory, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan); Fujii, Y.; Gonzalez, A.; Kaneko, K.; Kroug, M.; Kojima, T.; Kuroiwa, K.; Miyachi, A. [National Astronomical Observatory, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan); Saito, S.; Makise, K.; Wang, Z. [National Institute of Information and Telecommunications Technology, 588-2 Iwaoka, Iwaoka-cho, Kobe, Hyogo 651-2492 (Japan); Asayama, S. [Joint ALMA Observatory, Alonso de Cordova 3107, Vitacura, Santiago (Chile)

    2013-11-15

    Highlights: •The ALMA Band 10 (787–950 GHz) SIS receivers have been developed. •The complex conductivity of NbTiN was measured by a THz-TDS for the mixer design. •Tens of Band 10 receivers have been produced and their performance was quite well. •The best achieved receiver noise temperature was 125 K corresponding to 3hf/k{sub B}. •Band 10 receiver installed in the ALMA antenna captured astronomical signals. -- Abstract: The production model of a dual polarization heterodyne receiver for the Atacama Large Millimeter/submillimteter Array (ALMA) telescope has been developed to operate in the 787–950 GHz frequency band. The receiver uses two double sideband (DSB) waveguide mixers with Nb/AlOx/Nb tunnel junctions and NbTiN/SiO{sub 2}/Al microstrip tuning circuits on quartz substrate. A terahertz time domain spectrometer was used to characterize our NbTiN film for the tuning circuit design, which revealed that the complex conductivity of the film is described by the Mattis-Bardeen theory including a finite scattering time of 15 fs and a superconducting gap with a gap ratio 2Δ/k{sub B}T{sub C} ∼ 4.0. Tens of these receivers (out of the total production number of 73) have been successfully produced, and their performance is well within the stringent ALMA requirements. The best achieved DSB receiver noise temperature is 125 K, corresponding to about 3hf/k{sub B} for 4 K operation. One of Band 10 receivers has successfully been installed in the ALMA antenna for a test observation.

  19. Baixando à Terra: uma análise crítica de um projeto de comercialização de produtos florestais não madeireiros em uma comunidade da Amazônia Oriental Coming down to Earth: a critical analysis of a project for the commercialization of non-timber forest products in a community of the Eastern Amazon

    Directory of Open Access Journals (Sweden)

    Cristina Herrero-Jáuregui

    2011-06-01

    Full Text Available

    Muitas organizações governamentais e não governamentais (ONGs investem esforços consideráveis para apoiar as populações dependentes da floresta, na extração e comercialização de produtos florestais não madeireiros (PFNM, para gerar ganhos econômicos de forma ecologicamente sustentável. Porém, o sucesso destes esforços agora tem sido bastante modesto, sendo que muitas das iniciativas que recebem apoio externo são abandonadas quando o apoio acaba. Este artigo é uma reflexão crítica sobre as expectativas e as preocupações que surgem deste tipo de projetos de desenvolvimento, analisando em profundidade um projeto para a comercialização de óleos vegetais pela comunidade de Pedreira, situada na Amazônia Oriental Brasileira, que tem recebido apoio intensivo por parte do governo. O estudo explora as motivações das famílias que participaram do projeto, a forma como o projeto influenciou nos processos de produção e quais foram os benefícios para as famílias participantes assim como as consequências globais para toda a comunidade. Os resultados revelam que o projeto de comercialização de PFNM analisado, baseado em expectativas exageradamente otimistas, investiu fortemente na reorganização dos esquemas de produção locais, sem considerar adequadamente a realidade sócioambiental, as capacidades e interesses das comunidades. Como consequência, o modelo sócio-produtivo proposto não necessariamente teve efeitos significativamente interessantes para todos os atores locais e até causaram prejuízos para eles.

    doi: 10.4336/2011.pfb.31.66.131

    Many governmental and non-governmental development organisations (NGOs invest considerable efforts to support forest dependent people for the extraction and commercialization of non-timber forest products (NTFP to generate income in an ecologically sustainable way. But success

  20. 75 FR 5780 - Green Borders Geothermal, LLC, Complainant, v. Terra-Gen Dixie Valley, LLC, Respondent; Notice of...

    Science.gov (United States)

    2010-02-04

    ... Energy Regulatory Commission Green Borders Geothermal, LLC, Complainant, v. Terra-Gen Dixie Valley, LLC... Geothermal, LLC (Green Borders) filed a formal complaint against Terra-Gen Dixie Valley, LLC (f/k/a Caithness Dixie Valley, LLC) (Terra-Gen) pursuant to section 206 of the Federal Power Act, and 18 CFR...

  1. Meteorological impact of realistic Terra Nova Bay polynyas.

    Science.gov (United States)

    Morelli, Sandra

    2010-05-01

    The energy exchange between the ocean and the atmosphere in the Antarctic marginal sea ice zone is influenced by the extent of sea-ice cover. In areas of open water, a direct contact is established and intense energy exchanges occur, due to the large difference of temperature between the water and the air above it. This implies that the polynyas are areas where the ocean exchanges energy with the atmosphere and as a result they have an effect on the polar meteorology/climate. The work presented here concerns real polynya events in the region of Terra Nova Bay (TNB), Antarctica, where a recurring coastal polynya occurs nearby the Italian Antarctic Base. The aim is the study of the impact of polynyas on the atmosphere by three-dimensional numerical simulations. The ETA model (Mesinger et al., 2006) was used and ECMWF and NCEP data provided the initial and boundary conditions. The model had already been successfully used in the Antarctic area (Casini and Morelli, 2007) A polynya of realistic size (as observed by satellite image) was included in the initial conditions for the simulations and a study of the air circulation during the events is found in Morelli et al. (2007), Morelli and Casini (2008), Morelli et al. (2009). The Eta Model reproduced the evolution of upper and mod-level conditions in good agreement with AVHRR observations (Morelli, 2008, Morelli and Parmiggiani, 2009). Also, the simulated 10 m wind was well correlated with the observed extension of the polynya. In order to isolate the effect of the presence of the open water area on the structure of the atmospheric boundary layer and on the atmospheric circulation, further simulations were performed without the presence of the polynya, i.e. with its extent covered with sea ice. The numerical simulations show that the polynyas act to increase the speed of the air above them and generate strong heat fluxes that warm the air. The effects are found over and downwind the sea ice free area. Results from the Eta

  2. Conhecimento e usos do babaçu (Attalea speciosa Mart. e Attalea eichleri (Drude) A. J. Hend.) entre os Mebêngôkre-Kayapó da Terra Indígena Las Casas, estado do Pará, Brasil Knowledge and use of babassu (Attalea speciosa Mart. and Attalea eichleri ​​(Drude) A.J. Hend.) among Mebengokre-kayapó from Las Casas Indigenous Land, Pará state, Brazil

    OpenAIRE

    Sol Elizabeth González-Pérez; Márlia Coelho-Ferreira; Pascale Robert; Claudia Leonor López Garcés

    2012-01-01

    O babaçu (A. speciosa) é uma das espécies que se destacam na subsistência de diversos povos e populações tradicionais que habitam o cerrado, região que ocupa aproximadamente 24% do território brasileiro. Neste estudo, efetuado entre o povo indígena Kayapó, foi feito um levantamento sobre os usos do babaçu na aldeia Las Casas, na Terra Indígena Las Casas, a qual está localizada dentro dos municípios de Pau D´Arco, Floresta do Araguaia e Redenção, no estado do Pará. Os dados foram obtidos atrav...

  3. Incursões ao IBGE através da história da geografia

    OpenAIRE

    Pereira, Sergio Nunes; Bomfim, Paulo Roberto de Albuquerque

    2014-01-01

    Após dois números desta nova edição de Terra Brasilis dedicados a temáticas teóricas da história da geografia e da geografia histórica, o presente número aborda um objeto mais tangível: o Instituto Brasileiro de Geografia e Estatística (IBGE), instituição ainda carente de investigações historiográficas que contemplem sua complexidade e envergadura. A originalidade representada pelo IBGE no contexto geral da institucionalização da geografia e saberes afins no Brasil não passou despercebida por...

  4. Solar ALMA: Observation-Based Simulations of the mm and sub-mm Emissions from Active Regions

    Science.gov (United States)

    Fleishman, G.; Loukitcheva, M.; Nita, G.

    2015-12-01

    We developed an efficient algorithm integrated in our 3D modeling tool, GX Simulator (Nita et al. 2015), allowing quick computation of the synthetic intensity and polarization maps of solar active regions (AR) in the ALMA spectral range.

  5. O MOVIMENTO DOS TRABALHADORES RURAIS SEM- TERRA E O DIREITO FUNDAMENTAL AO TRABALHO DIGNO: UMA PESQUISA ETNOGRÁFICA

    Directory of Open Access Journals (Sweden)

    Matheus Felipe de Castro

    2015-07-01

    Full Text Available O presente artigo tem por tema o direito fundamental ao trabalho digno, com ênfase na sua dimensão de elemento constituinte da psique dos sujeitos inseridos numa sociedade de mercado e consumo, marcada por profundas disparidades sociais internas derivadas, em grande medida, de sua localização periférica e subdesenvolvida na economia-mundo. O referencial teórico da análise parte de uma leitura entre psicanálise marxismo, acerca da centralidade do trabalho na constituição psíquica do sujeito. Estas duas vertentes de pensamento são utilizadas a partir da observação desta temática na vida de trabalhadores rurais pertencentes a uma comunidade de agricultores sem-terra, na sua trajetória em bus- ca de trabalho. É da leitura cruzada entre esses dois autores, que ao fim lançam-se algumas reflexões sobre a trajetória vivida por Pedro e Clara, trabalhadores rurais, dedicados à agricultura fami- liar, que depois de um longo percurso em busca de trabalho, são hoje integrantes de um assentamento do msT, buscando refletir sobre o papel que essa trajetória pode exercer na efetivação do direito fundamental ao trabalho digno e na ampliação dos direitos subjetivos dos agentes envolvidos. O método de pesquisa foi o etnográfico, eis que os pesquisadores vivenciaram diretamente a realidade onde se inserem as personagens aqui descritas e o pro- cedimento de exposição a livre narrativa.

  6. Corporate Responsibilityon the Media Sector : Study on the Corporate Responsibility Perceptions of Alma Media’s Stakeholders

    OpenAIRE

    Poukka, Riikka

    2010-01-01

    Despite the globally growing interest in corporate responsibility (CR), there is little practical as wellas academic knowledge of CR practises in the media sector. The aim of this study is to make acontribution to the evolving understanding of what CR implies in the media sector by applying astakeholder approach to a case study, which is Alma Media, a Finnish media corporation. Firstly,from the corporate perspective, the objective of this study is to provide Alma Media with a CRagenda, based ...

  7. 15 Years of Terra MODIS Instrument on-Orbit Performance

    Science.gov (United States)

    Xiong, X.; Salomonson, V.

    2014-12-01

    The first MODIS instrument, launched on-board the NASA EOS Terra spacecraft in December 1999, has successfully operated for nearly 15 years. MODIS observations have significantly contributed to the studies of many geophysical parameters of the earth's system and its changes over time. Dedicated effort made by the MODIS Characterization Support Team (MCST) to constantly monitor instrument operation, to calibrate changes in sensor response, to derive and update sensor calibration parameters, and to maintain and improve calibration algorithms has played an extremely important role to assure the quality of MODIS data products. MODIS was developed with overall improvements over its heritage sensors. Its observations are made in 36 spectral bands, covering wavelengths from visible to long-wave infrared. The reflective solar bands (1-19 and 26) are calibrated on-orbit by a solar diffuser (SD) panel and regularly scheduled lunar observations. The thermal emissive bands (20-25 and 27-36) calibration is referenced to an on-board blackbody (BB) source. On-orbit changes in the sensor spectral and spatial characteristics are tracked by a spectroradiometric calibration assembly (SRCA). This paper provides an overview of Terra MODIS on-orbit operation and calibration activities implemented from launch to present and the status of instrument health and functions. It demonstrates sensor on-orbit performance derived from its telemetry, on-board calibrators (OBC), and lunar observations. Also discussed in this paper are changes in sensor characteristics, corrections applied to maintain level 1B data quality, various challenging issues, and future improvements.

  8. Accuracy assessment of Terra-MODIS aerosol optical depth retrievals

    International Nuclear Information System (INIS)

    Moderate Resolution Imaging Spectroradiometer (MODIS) aerosol products have been widely used to address environment and climate change subjects with daily global coverage. Aerosol optical depth (AOD) is retrieved by different algorithms based on the pixel surface, determining between land and ocean. MODIS-Terra and Global Aerosol Robotic Network (AERONET) products can be obtained from the Multi-sensor Aerosol Products Sampling System (MAPSS) for coastal regions during 2000-2010. Using data collected from 83 coastal stations worldwide from AERONET from 2000-2010, accuracy assessments are made for coastal aerosol optical depth (AOD) retrieved from MODIS aboard the Terra satellite. AOD retrieved from MODIS at 0.55μm wavelength has been compared With the AERONET derived AOD, because it is reliable with the major wavelength used by many chemistry transport and climate models as well as previous MODIS validation studies. After removing retrievals with quality flags below1 for Ocean algorithm and below 3 for Land algorithm, The accuracy of AOD retrieved from MODIS Dark Target Ocean algorithms (correlation coefficient R2 is 0.844 and a regression equation of τM = 0.91·τA + 0.02 (where subscripts M and A represent MODIS and AERONET respectively), is the greater than the MODIS Dark Target Land algorithms (correlation coefficient R2 is 0.764 and τM = 0.95·τA + 0.03) and the Deep Blue algorithm (correlation coefficient R2 is 0.652 and τM = 0.81·τA + 0.04). The reasons of the retrieval error in AOD are found to be the various underlying surface reflectance. Therefore, the aerosol models and underlying surface reflectance are the dominant factors which influence the accuracy of MODIS retrieval performance. Generally the MODIS Land algorithm implements better than the Ocean algorithm for coastal sites

  9. Existe responsabilidade corporativa ambiental de exploração econômica em terras indígenas no Brasil? (¿Existe la responsabilidad corporativa ambiente de la exploración económica en tierras aborígenes en el Brasil?)

    OpenAIRE

    Thais Luzia Colaço

    2012-01-01

    Com a Constituição Federal de 1988, os índios no Brasil passaram a ter direitos especiais sobre suas terras que se tornam de posse permanente e propriedade da União, inalienável, indisponível, imprescritível, com direito a usufruto conforme as especificidades de cada povo. São consideradas as “terras tradicionalmente ocupadas pelos índios e por eles habitadas em caráter permanente, as utilizadas para suas atividades produtivas, as imprescindíveis à preservação dos recursos ambientais necessár...

  10. Hints at diapirism in Arabia Terra craters, Mars

    Science.gov (United States)

    Pozzobon, Riccardo; Pio Rossi, Angelo; Massironi, Matteo; Mazzarini, Francesco; Pondrelli, Monica; Marinangeli, Lucia; Unnithan, Vikram

    2014-05-01

    Arabia Terra is a region of Mars located at the boundary between the southern highlands and the northern lowlands and classically dominated by heavily cratered terrain. Unlike the rest of the topographic dichotomy on the planet, in Arabia Terra the elevation transition is very gentle, falling of 4 km over a distance of 2500 km (average slope = 0.0016°). Most of the impact craters within the region display a central bulge, bearing a well preserved stratification and a wide range of smaller morphologies like pitted cones, mounds and knobs (Franchi et al. 2013). Images acquired by HiRISE and CTX cameras on board MRO provided a comprehensive dataset in which also these small features can be easily recognized. These are tens of meters of diameter and tens of meters high, and many of them show an apical orifice. They are interpreted to have worked as pathways for subsurface fluid flow (e.g. Pondrelli et al., 2011; Rossi et al., 2008). Indeed an active underground fluid flow activity in Arabia Terra It has been recently hypothesized (e.g. Andrews-Hanna et al, 2011) , being crater central bulges a place of sulfate precipitation, due to local water table emergence (e.g. Franchi et al., 2013). To date, there is no clear explanation for occurrence of central bulges surrounded by prominent depressions in Arabia craters. In addition, in Firsoff and Crommelin craters it is possible to recognize folds and outward dipping strata on the central bulges and their surroundings. Interestingly, a few craters with a prominent bulged floor elsewhere in Arabia Terra do not display stratification and are not explainable as impact related structures as their expected pristine central peak derived by hydrocode modelling is ~2km lower and one third the diameter than the actual topography (Pozzobon et al., 2013). All these evidences are not consistent with a typical lacustrine stratigraphic environment, whether interested by sulfate precipitation or not, and suggest active deformation after or

  11. Educação popular, saúde e segurança alimentar em áreas do Movimento dos Trabalhadores Rurais Sem Terra

    Directory of Open Access Journals (Sweden)

    Bianca RÜCKERT

    2014-06-01

    Full Text Available Este artigo analisa o desenvolvimento de uma ação educativa em segurança alimentar e nutricional envolvendo o Movimento dos Trabalhadores Rurais Sem Terra, na região Metropolitana de Belo Horizonte, Minas Gerais. A partir do registro da experiência, enfatizou-se a metodologia da ação, os saberes mobilizados e as mudanças nas práticas de saúde, segurança alimentar e produção agropecuária dos sujeitos envolvidos. As reflexões apontam para alguns elementos da metodologia que contribuíram para o desenvolvimento da referida ação educativa, para a construção de uma concepção ampliada sobre o processo saúde-doença a partir da inter-relação entre saúde, produção, alimentação e práticas populares de cuidado, além dos desafios e potencialidades ao fortalecimento da segurança alimentar e nutricional nas áreas de Reforma Agrária que integraram a experiência.

  12. Validação do balanço de radiação obtido a partir de dados MODIS/TERRA na Amazônia com medidas de superfície do LBA Validation of net radiation obtained from MODIS/TERRA data in Amazonia with LBA surface measurements

    OpenAIRE

    Gabriel de Oliveira; Elisabete Caria Moraes

    2013-01-01

    Este estudo tem como objetivo estimar os componentes do balanço de radiação em duas regiões do estado de Rondônia (sudoeste da Amazônia brasileira), a partir de dados do Moderate Resolution Imaging Spectroradiometer (MODIS/TERRA) por intermédio do modelo Surface Energy Balance Algorithms for Land (SEBAL), e validar os resultados com informações adquiridas por torres micrometeorológicas do projeto LBA sob as condições de pastagem (Fazenda Nossa Senhora Aparecida) e floresta (Reserva Biológica ...

  13. Spectral and morphological analysis of the remnant of Supernova 1987A with ALMA & ATCA

    CERN Document Server

    Zanardo, Giovanna; Indebetouw, Remy; Chevalier, Roger A; Matsuura, Mikako; Gaensler, Bryan M; Barlow, Michael J; Fransson, Claes; Manchester, Richard N; Baes, Maarten; Kamenetzky, Julia R; Lakicevic, Masha; Lundqvist, Peter; Marcaide, Jon M; Marti-Vidal, Ivan; Meixner, Margaret; Ng, C -Y; Park, Sangwook; Sonneborn, George; Spyromilio, Jason; van Loon, Jacco Th

    2014-01-01

    We present a comprehensive spectral and morphological analysis of the remnant of Supernova (SN) 1987A with the Australia Telescope Compact Array (ATCA) and the Atacama Large Millimeter/submillimeter Array (ALMA). The non-thermal and thermal components of the radio emission are investigated in images from 94 to 672 GHz ($\\lambda$ 3.2 mm to 450 $\\mu$m), with the assistance of a high-resolution 44 GHz synchrotron template from the ATCA, and a dust template from ALMA observations at 672 GHz. An analysis of the emission distribution over the equatorial ring in images from 44 to 345 GHz highlights a gradual decrease of the east-to-west asymmetry ratio with frequency. We attribute this to the shorter synchrotron lifetime at high frequencies. Across the transition from radio to far infrared, both the synchrotron/dust-subtracted images and the spectral energy distribution (SED) suggest additional emission beside the main synchrotron component ($S_{\

  14. New Detections of Galactic Molecular Absorption Systems toward ALMA Calibrator Sources

    CERN Document Server

    Ando, Ryo; Tamura, Yoichi; Izumi, Takuma; Umehata, Hideki; Nagai, Hiroshi

    2015-01-01

    We report on Atacama Large Millimeter/submillimeter Array (ALMA) detections of molecular absorption lines in Bands 3, 6 and 7 toward four radio-loud quasars, which were observed as the bandpass and complex gain calibrators. The absorption systems, three of which are newly detected, are found to be Galactic origin. Moreover, HCO absorption lines toward two objects are detected, which almost doubles the number of HCO absorption samples in the Galactic diffuse medium. In addition, high HCO to H13CO+ column density ratios are found, suggesting that the interstellar media (ISM) observed toward the two calibrators are in photodissociation regions, which observationally illustrates the chemistry of diffuse ISM driven by ultraviolet (UV) radiation. These results demonstrate that calibrators in the ALMA Archive are potential sources for the quest for new absorption systems and for detailed investigation of the nature of the ISM.

  15. Debris Disks in Nearby Young Moving Groups in the ALMA Era

    CERN Document Server

    Kóspál, Á

    2015-01-01

    Many members of nearby young moving groups exhibit infrared excess attributed to circumstellar debris dust, formed via erosion of planetesimals. With their proximity and well-dated ages, these groups are excellent laboratories for studying the early evolution of debris dust and of planetesimal belts. ALMA can spatially resolve the disk emission, revealing the location and extent of these belts, putting constraints on planetesimal evolution models, and allowing us to study planet-disk interactions. While the main trends of dust evolution in debris disks are well-known, there is almost no information on the evolution of gas. During the transition from protoplanetary to debris state, even the origin of gas is dubious. Here we review the exciting new results ALMA provided by observing young debris disks, and discuss possible future research directions.

  16. Debris Disks in Nearby Young Moving Groups in the ALMA Era

    Science.gov (United States)

    Kóspál, Á.; Moór, A.

    2016-01-01

    Many members of nearby young moving groups exhibit infrared excess attributed to circumstellar debris dust, formed via erosion of planetesimals. With their proximity and well-dated ages, these groups are excellent laboratories for studying the early evolution of debris dust and of planetesimal belts. ALMA can spatially resolve the disk emission, revealing the location and extent of these belts, putting constraints on planetesimal evolution models, and allowing us to study planet-disk interactions. While the main trends of dust evolution in debris disks are well-known, there is almost no information on the evolution of gas. During the transition from protoplanetary to debris state, even the origin of gas is dubious. Here we review the exciting new results ALMA provided by observing young debris disks, and discuss possible future research directions.

  17. ALMA imaging study of methyl formate (HCOOCH$_{3}$) in the torsionally excited states towards Orion KL

    CERN Document Server

    Sakai, Yusuke; Hirota, Tomoya

    2015-01-01

    We recently reported the first identification of rotational transitions of methyl formate (HCOOCH$_{3}$) in the second torsionally excited state toward Orion Kleinmann-Low (KL) observed with the Nobeyama 45 m telescope. In combination with the identified transitions of methyl formate in the ground state and the first torsional excited state, it was found that there is a difference in rotational temperature and vibrational temperature, where the latter is higher. In this study, high spatial resolution analysis by using Atacama Large Millimeter/Submillimeter Array (ALMA) science verification data was carried out to verify and understand this difference. Toward the Compact Ridge, two different velocity components at 7.3 and 9.1 km s$^{-1}$ were confirmed, while a single component at 7.3 km s$^{-1}$ was identified towards the Hot Core. The intensity maps in the ground, first, and second torsional excited states have quite similar distributions. Using extensive ALMA data, we determined the rotational and vibration...

  18. ALMA observation of high-z extreme star-forming environments discovered by Planck/Herschel

    Science.gov (United States)

    Kneissl, R.

    2016-05-01

    The Comic Microwave Background satellite Planck with its High Frequency Instrument has surveyed the mm/sub-mm sky in six frequency channels from 100 to 900 GHz. A sample of 228 cold sources of the Cosmic Infrared Background was observed in follow-up with Herschel SPIRE. The majority of sources appear to be over-densities of star-forming galaxies matching the size of high-z proto-cluster regions, while a 3% fraction are individual bright, lensed galaxies. A large observing program is underway with the aim of resolving the regions into the constituent members of the Planck sources. First ALMA data have been received on one Planck/Herschel proto-cluster candidate, showing the expected large over-abundance of bright mm/sub-mm sources within the cluster region. ALMA long baseline data of the brightest lensed galaxy in the sample with > 1 Jy at 350 μm are also forthcoming.

  19. New detections of Galactic molecular absorption systems toward ALMA calibrator sources

    Science.gov (United States)

    Ando, Ryo; Kohno, Kotaro; Tamura, Yoichi; Izumi, Takuma; Umehata, Hideki; Nagai, Hiroshi

    2016-02-01

    We report on Atacama Large Millimeter/submillimeter Array (ALMA) detections of molecular absorption lines in Bands 3, 6, and 7 toward four radio-loud quasars, which were observed as the bandpass and complex gain calibrators. The absorption systems, three of which are newly detected, are found to be Galactic origin. Moreover, HCO absorption lines toward two objects are detected, which almost doubles the number of HCO absorption samples in the Galactic diffuse medium. In addition, high HCO-to-H13CO+ column density ratios are found, suggesting that the interstellar media (ISM) observed toward the two calibrators are in photodissociation regions, which observationally illustrates the chemistry of diffuse ISM driven by ultraviolet (UV) radiation. These results demonstrate that calibrators in the ALMA Archive are potential sources for the quest for new absorption systems and for detailed investigation of the nature of the ISM.

  20. New Measurements of the Radio Photosphere of Mira based on Data from the JVLA and ALMA

    OpenAIRE

    Matthews, L. D.; Reid, M. J.; Menten, K. M.

    2015-01-01

    We present new measurements of the millimeter wavelength continuum emission from the long period variable Mira ($o$ Ceti) at frequencies of 46 GHz, 96 GHz, and 229 GHz ($\\lambda$~7 mm, 3 mm, and 1 mm) based on observations obtained with the Jansky Very Large Array (JVLA) and the Atacama Large Millimeter/submillimeter Array (ALMA). The measured millimeter flux densities are consistent with a radio photosphere model derived from previous observations, where flux density, $S_{\

  1. Optical Characterisation of Astronomical Submillimetre Receivers including ALMA Bands 5 and 9

    OpenAIRE

    Whale, Mark

    2010-01-01

    The primary concern of this thesis is the analysis of long wavelength quasioptical receiver systems operating within the Terahertz and submillimetre wavebands. Specific attention is paid to the front-end coupling optics of the Band 5 and Band 9 receiver channels of the Atacama Large Millimetre Array (ALMA). The theory of Gaussian Beam Mode Analysis (GBMA) is expanded and developed as the basic analytical tool for the work presented. This technique is utilised to model both clas...

  2. Uuden median murros Alma Mediassa, Sanoma Oy:ssÀ ja Yleisradiossa 1994-2004

    OpenAIRE

    Lindblom, Tomi

    2009-01-01

    This is a qualitative and multimethodological comparative study, which consists of two main parts: examining the development of new media and analysing and comparing the new media strategies of the three companies studied (Alma Media, Sanoma and the Finnish Broadcasting Company Yleisradio). The study includes the first large-scale review in Finnish of the development of new media, paying attention to the birth of the Internet as well as to mobile media, web TV and any other element of ne...

  3. ALMA-resolved salt emission traces the chemical footprint and inner wind morphology of VY CMa

    CERN Document Server

    Decin, L; Millar, T J; Baudry, A; De Beck, E; Homan, W; Smith, N; Van de Sande, M; Walsh, C

    2016-01-01

    (abreviated) We aim to study the inner-wind structure (R<250 Rstar) of the well-known red supergiant VY CMa. We analyse high spatial resolution (~0".24x0".13) ALMA Science Verification (SV) data in band 7 in which four thermal emission lines of gaseous sodium chloride (NaCl) are present at high signal-to-noise ratio. For the first time, the NaCl emission in the inner wind region of VY CMa is spatially resolved. The ALMA observations reveal the contribution of up to four different spatial regions. The NaCl emission pattern is different compared to the dust continuum and TiO2 emission already analysed from the ALMA SV data. The emission can be reconciled with an axisymmetric geometry, where the lower density polar/rotation axis has a position angle of ~50 degrees measured from north to east. However, this picture can not capture the full morphological diversity, and discrete mass ejection events need to be invoked to explain localized higher-density regions. The velocity traced by the gaseous NaCl line profi...

  4. ALMA observations of the debris disk around the young Solar Analog HD 107146

    CERN Document Server

    Ricci, L; Fu, B; Hughes, A M; Corder, S; Isella, A

    2014-01-01

    We present ALMA continuum observations at a wavelength of 1.25 mm of the debris disk surrounding the $\\sim$ 100 Myr old solar analog HD 107146. The continuum emission extends from about 30 to 150 AU from the central star with a decrease in the surface brightness at intermediate radii. We analyze the ALMA interferometric visibilities using debris disk models with radial profiles for the dust surface density parametrized as i) a single power-law, ii) a single power-law with a gap, and iii) a double power-law. We find that models with a gap of radial width $\\sim 8$ AU at a distance of $\\sim 80$ AU from the central star, as well as double power-law models with a dip in the dust surface density at $\\sim 70$ AU provide significantly better fits to the ALMA data than single power-law models. We discuss possible scenarios for the origin of the HD 107146 debris disk using models of planetesimal belts in which the formation of Pluto-sized objects trigger disruptive collisions of large bodies, as well as models which co...

  5. ALMA imaging of the CO snowline of the HD 163296 disk with DCO+

    CERN Document Server

    Mathews, G S; Juhasz, A; Harsono, D; Chapillon, E; van Dishoeck, E F; Espada, D; de Gregorio-Monsalvo, I; Hales, A; Hogerheijde, M R; Mottram, J C; Rawlings, M G; Takahashi, S; Testi, L

    2013-01-01

    The high spatial and line sensitivity of ALMA opens the possibility of resolving emission from molecules in circumstellar disks. With an understanding of physical conditions under which molecules have high abundance, they can be used as direct tracers of distinct physical regions. In particular, DCO+ is expected to have an enhanced abundance within a few Kelvin of the CO freezeout temperature of 19 K, making it a useful probe of the cold disk midplane. We compare ALMA line observations of HD 163296 to a grid of models. We vary the upper- and lower-limit temperatures of the region in which DCO+ is present as well as the abundance of DCO+ in order to fit channel maps of the DCO+ J=5-4 line. To determine the abundance enhancement compared to the general interstellar medium, we carry out similar fitting to HCO+ J=4-3 and H13CO+ J=4-3 observations. ALMA images show centrally peaked extended emission from HCO+ and H13CO+. DCO+ emission lies in a resolved ring from ~110 to 160 AU. The outer radius approximately corr...

  6. ALMA CONTINUUM OBSERVATIONS OF A 30 Myr OLD GASEOUS DEBRIS DISK AROUND HD 21997

    International Nuclear Information System (INIS)

    Circumstellar disks around stars older than 10 Myr are expected to be gas-poor. There are, however, two examples of old (30-40 Myr) debris-like disks containing a detectable amount of cold CO gas. Here we present Atacama Large Millimeter/Submillimeter Array (ALMA) and Herschel Space Observatory observations of one of these disks, around HD 21997, and study the distribution and origin of the dust and its connection to the gas. Our ALMA continuum images at 886 μm clearly resolve a broad ring of emission within a diameter of ∼4.''5, adding HD 21997 to the dozen debris disks resolved at (sub)millimeter wavelengths. Modeling the morphology of the ALMA image with a radiative transfer code suggests inner and outer radii of ∼55 and ∼150 AU, and a dust mass of 0.09 M ⊕. Our data and modeling hints at an extended cold outskirt of the ring. Comparison with the morphology of the CO gas in the disk reveals an inner dust-free hole where gas nevertheless can be detected. Based on dust grain lifetimes, we propose that the dust content of this gaseous disk is of secondary origin and is produced by planetesimals. Since the gas component is probably primordial, HD 21997 is one of the first known examples of a hybrid circumstellar disk, a thus-far little studied late phase of circumstellar disk evolution

  7. A detailed view of the gas shell around R Sculptoris with ALMA

    CERN Document Server

    Maercker, M; Brunner, M; De Beck, E; Humphreys, E M; Kerschbaum, F; Lindqvist, M; Olofsson, H; Ramstedt, S

    2016-01-01

    Thermal pulses are fundamental to the chemical evolution of AGB stars and their circumstellar envelopes. A further consequence of thermal pulses is the formation of detached shells of gas and dust around the star. We aim to determine the physical properties of the detached gas shell around R Sculptoris, in particular the shell mass and temperature, and to constrain the evolution of the mass-loss rate during and after a thermal pulse. We analyse CO(1-0), CO(2-1), and CO(3-2) emission, observed by. The spatial resolution of the ALMA data allows us to separate the detached shell emission from the extended emission inside the shell. We perform radiative transfer modelling of both components to determine the shell properties and the post-pulse mass-loss properties. The ALMA data show a gas shell with a radius of 19.5" expanding at 14.3km/s. The different scales probed by the ALMA Cycle 0 array show that the shell must be entirely filled with gas, contrary to the idea of a detached shell. The comparison to single-d...

  8. SXDF-UDS-CANDELS-ALMA 1.5 arcmin$^2$ deep survey

    CERN Document Server

    Kohno, K; Tamura, Y; Tadaki, K; Hatsukade, B; Ikarashi, S; Caputi, K I; Rujopakarn, W; Ivison, R J; Dunlop, J S; Motohara, K; Umehata, H; Yabe, K; Wang, W -H; Kodama, T; Koyama, Y; Hayashi, M; Matsuda, Y; Hughes, D; Aretxaga, I; Wilson, G W; Yun, M S; Ohta, K; Akiyama, M; Kawabe, R; Iono, D; Nakanishi, K; Lee, M; Makiya, R

    2016-01-01

    We have conducted 1.1 mm ALMA observations of a contiguous $105'' \\times 50''$ or 1.5 arcmin$^2$ window in the SXDF-UDS-CANDELS. We achieved a 5$\\sigma$ sensitivity of 0.28 mJy, providing a flat sensus of dusty star-forming galaxies with $L_{\\rm IR} \\sim6\\times10^{11}$ $L_\\odot$ (for $T_{\\rm dust}$ =40K) up to $z\\sim10$ thanks to the negative K-correction at this wavelength. We detected 5 brightest sources (S/N$>$6) and 18 low-significance sources (5$>$S/N$>$4; these may contain spurious detections, though). One of the 5 brightest ALMA sources ($S_{\\rm 1.1mm} = 0.84 \\pm 0.09$ mJy) is extremely faint in the WFC3 and VLT/HAWK-I images, demonstrating that a contiguous ALMA imaging survey is able to uncover a faint dust-obscured population that is invisible in deep optical/near-infrared surveys. We found a possible [CII]-line emitter at $z=5.955$ or a low-$z$ CO emitting galaxy within the field, which may allow us to constrain the [CII] and/or the CO luminosity functions across the history of the universe.

  9. Reflections on the twenty-fifth anniversary of the Alma-Ata Declaration.

    Science.gov (United States)

    Banerji, Debabar

    2003-01-01

    The Alma-Ata Declaration on Primary Health Care of 1978-based on the World Health Assembly's resolution of 1977 on Health for All by the Year 2000--was a watershed in the concepts and practices of public health as a scientific discipline; it was endorsed by every country in the world, rich and poor. According to the Declaration, health is a fundamental right, to be guaranteed by the state; people should be the prime movers in shaping their health services, using and enlarging upon the capacities developed in their societies; health services should operate as an integral whole, with promotive, preventive, curative, and rehabilitative components; and any western medical technology used in non-western societies must conform to the cultural, social, economic, and epidemiological conditions of the individual countries. Since Alma-Ata, a syndicate of the rich countries and the ruling elites of the poor countries, aided by the WHO, World Bank, World Trade Organization, and other international institutions, has done much to overturn the Declaration's primary health care initiatives. The WHO's recent attempt to regain some credibility, its Commission on Macroeconomics and Health, ignored the primary health care principles of the Alma-Ata Declaration. A struggle for these principles will have to be part of the larger struggle, by like-minded individuals working in individual countries, for a just world order. PMID:14758860

  10. Prototype Implementation of Web and Desktop Applications for ALMA Science Verification Data and the Lessons Learned

    Science.gov (United States)

    Eguchi, S.; Kawasaki, W.; Shirasaki, Y.; Komiya, Y.; Kosugi, G.; Ohishi, M.; Mizumoto, Y.

    2013-10-01

    ALMA is estimated to generate TB scale data during only one observation; astronomers need to identify which part of the data they are really interested in. We have been developing new GUI software for this purpose utilizing the VO interface: ALMA Web Quick Look System (ALMAWebQL) and ALMA Desktop Application (Vissage). The former is written in JavaScript and HTML5 generated from Java code by the Google Web Toolkit, and the latter is in pure Java. An essential point of our approach is how to reduce network traffic: we prepare, in advance, “compressed” FITS files of 2x2x1 (horizontal, vertical, and spectral directions, respectively) binning, 2 x 2 x 2 binning, 4 x 4 x 2 binning data, and so on. These files are hidden from users, and Web QL automatically chooses the proper one for each user operation. Through this work, we find that network traffic in our system is still a bottleneck towards TB scale data distribution. Hence we have to develop alternative data containers for much faster data processing. In this paper, we introduce our data analysis systems, and describe what we learned through the development.

  11. ALMA resolves the torus of NGC 1068: continuum and molecular line emission

    CERN Document Server

    Garcia-Burillo, S; Almeida, C Ramos; Usero, A; Krips, M; Alonso-Herrero, A; Aalto, S; Casasola, V; Hunt, L K; Martin, S; Viti, S; Colina, L; Costagliola, F; Eckart, A; Fuente, A; Henkel, C; Marquez, I; Neri, R; Schinnerer, E; Tacconi, L J; van der Werf, P P

    2016-01-01

    We have used the Atacama Large Millimeter Array (ALMA) to map the emission of the CO(6-5) molecular line and the 432 {\\mu}m continuum emission from the 300 pc-sized circumnuclear disk (CND) of the nearby Seyfert 2 galaxy NGC 1068 with a spatial resolution of ~4 pc. These observations spatially resolve the CND and image, for the first time, the dust emission and the molecular gas distribution and kinematics from a 7-10 pc-diameter disk that represents the submillimeter counterpart of the putative torus of NGC 1068. We fitted the nuclear spectral energy distribution of the torus using ALMA and near and mid-infrared (NIR/MIR) data with CLUMPY models. The mass and radius of the best-fit solution for the torus are both consistent with the values derived from the ALMA data alone: Mgas_torus=(1+-0.3)x10^5 Msun and Rtorus=3.5+-0.5 pc. The dynamics of the molecular gas in the torus show non-circular motions and enhanced turbulence superposed on the rotating pattern of the disk. The kinematic major axis of the CO torus...

  12. The ALMA archive and its place in the astronomy of the future

    CERN Document Server

    Stoehr, Felix; Leon, Stéphane; Muller, Erik; Manning, Alisdair; Moins, Christophe; Jenkins, Dustin

    2015-01-01

    The Atacama Large Millimeter/submillimeter Array (ALMA), an international partnership of Europe, North America and East Asia in cooperation with the Republic of Chile, is the largest astronomical project in existence. While ALMA's capabilities are ramping up, Early Science observations have started. The ALMA Archive is at the center of the operations of the telescope array and is designed to manage the 200 TB of data that will be taken each year, once the observatory is in full operations. We briefly describe design principles. The second part of this paper focuses on how astronomy is likely to evolve as the amount and complexity of data taken grows. We argue that in the future observatories will compete for astronomers to work with their data, that observatories will have to reorient themselves to from providing good data only to providing an excellent end-to-end user-experience with all its implications, that science-grade data-reduction pipelines will become an integral part of the design of a new observat...

  13. Detection of lensing substructure using ALMA observations of the dusty galaxy SDP.81

    CERN Document Server

    Hezaveh, Yashar D; Marrone, Daniel P; Mao, Yao-Yuan; Morningstar, Warren; Wen, Di; Blandford, Roger D; Carlstrom, John E; Fassnacht, Christopher D; Holder, Gilbert P; Kemball, Athol; Marshall, Philip J; Murray, Norman; Levasseur, Laurence Perreault; Vieira, Joaquin D; Wechsler, Risa H

    2016-01-01

    We study the abundance of substructure in the matter density near galaxies using ALMA Science Verification observations of the strong lensing system SDP.81. We present a method to measure the abundance of subhalos around galaxies using interferometric observations of gravitational lenses. Using simulated ALMA observations, we explore the effects of various systematics, including antenna phase errors and source priors, and show how such errors may be measured or marginalized. We apply our formalism to ALMA observations of SDP.81. We find evidence for the presence of a $M=10^{8.96\\pm 0.12} M_{\\odot}$ subhalo near one of the images, with a significance of $6.9\\sigma$ in a joint fit to data from bands 6 and 7; the effect of the subhalo is also detected in both bands individually. We also derive constraints on the abundance of dark matter subhalos down to $M\\sim 2\\times 10^7 M_{\\odot}$, pushing down to the mass regime of the smallest detected satellites in the Local Group, where there are significant discrepancies...

  14. Blade Runner -What kind objects are there in the JVO ALMA Archive?-

    CERN Document Server

    Eguchi, Satoshi; Zapart, Christopher; Ohishi, Masatoshi; Mizumoto, Yoshihiko; Kawasaki, Wataru; Kobayashi, Tsuyoshi; Kosugi, George

    2015-01-01

    The JVO ALMA Archive provides users one of the easiest ways to access the ALMA archival data. The users can have a quick look at a 3 or 4-dimensional data cube without downloading multiple huge tarballs from a science portal of ALMA Regional Centers (ARCs). Since we just synchronize all datasets with those of ARCs, the metadata are identical to the upstream, including ``target name'' for each dataset. The name is not necessarily a common one like NGC numbers, but sometimes one of sequential numbers assigned in an observation proposal. Compilation of these artificial names into astronomical ones could provide users more flexible and powerful search interfaces; for instance, with the knowledge of the redshift for each source, the users can easily find the datasets which observed their interested emission/absorption lines at not the observer frame but the rest frame, fitting well with theoretical studies. To implement this functionality, cross-identification of all the sources in our archive with those in some o...

  15. The serendipitous discovery of a possible new solar system object with ALMA

    CERN Document Server

    Vlemmings, W; Maercker, M; Davidsson, B

    2015-01-01

    The unprecedented sensitivity of the Atacama Large millimeter/submillimeter array (ALMA) is providing many new discoveries. Several of these are serendipitous to the original goal of the observations. We report the discovery of previously unknown continuum sources, or a single fast moving new source, in our ALMA observations. Here we aim to determine the nature of the detections. The detections, at $>5.8\\sigma$ in the image plane and $>14\\sigma$ in the $(u,v)-$plane, were made in two epochs of ALMA observations of a $25$ arc second region around the asymptotic giant branch star W Aql in the continuum around 345 GHz. At a third epoch, covering $50x50$ arcseconds, the source(s) were not seen. We have investigated if the detections could be spurious, if they could constitute a population of variable background sources, or if the observations revealed a fast moving single object. Based on our analysis, we conclude that a single object (with a flux of $\\sim3.0$ mJy) exhibiting a large proper motion ($\\sim87$ arcse...

  16. ALMA observations of Lyman-alpha Blob 1: halo sub-structure illuminated from within

    CERN Document Server

    Geach, J E; Matsuda, Y; Hayes, M; Mas-Ribas, Ll; Dijkstra, M; Steidel, C C; Chapman, S C; Feldmann, R; Avison, A; Agertz, O; Ao, Y; Birkinshaw, M; Bremer, M N; Clements, D L; Dannerbauer, H; Farrah, D; Harrison, C M; Hine, N K; Kubo, M; Michalowski, M J; Scott, Douglas; Smith, D J B; Spaans, M; Simpson, J M; Swinbank, A M; Taniguchi, Y; van Kampen, E; van der Werf, P; Verma, A; Yamada, T

    2016-01-01

    We present new Atacama Large Millimeter/Submillimeter Array (ALMA) 850um continuum observations of the original Lyman-alpha Blob (LAB) in the SSA22 field at z=3.1 (SSA22-LAB01). The ALMA map resolves the previously identified submillimeter source into three components with total flux density S_850 = 1.68+/-0.06 mJy, corresponding to a star formation rate of ~150 M_sun/yr. The submillimeter sources are associated with several faint (m~27 mag) rest-frame ultraviolet sources identified in Hubble Space Telescope Imaging Spectrograph (STIS) clear filter imaging (~5850A). One of these companions is spectroscopically confirmed with Keck MOSFIRE to lie within 20 projected kpc and 250 km/s of one of the ALMA components. We postulate that some of these STIS sources represent a population of low-mass star-forming satellites surrounding the central submillimeter sources, potentially contributing to their growth and activity through accretion. Using a high resolution cosmological zoom simulation of a 10^13 M_sun halo at z...

  17. COBERTURA VEGETAL E USO DA TERRA NA REGIÃO ARARIPE PERNAMBUCANA

    Directory of Open Access Journals (Sweden)

    Ivan Ighour Silva Sá

    2010-01-01

    Full Text Available Este estudio desarrolla los municipios de Araripina, Bodocó, Ipubi, Ouricuri y Trinidad. Estos distritos forman el eje de Araripe y se encuentran en el extremo oeste de Pernambuco. Esta región sufre intensos cambios en el paisaje mediante la eliminación de la cubierta vegetal para el uso de leña en la calcinación de la región, así como para las prácticas agrícolas tradicionales. El objetivo de este estudio es analizar la vegetación de esta región, basado en la clasifi cación no supervisada de NDVI y encuestas sobre el terreno. En la región son las caras Savana facies Estépica en sus bosques y cubierta de árboles que se encuentran en la Unidad de Paisaje Depresión país, las áreas de contacto de tipo de vegetación Savana, Savana Estépica y el bosque de hoja caduca que se encuentran en la Araripe y áreas donde estas caras están en la regeneración y en áreas de la agricultura.

  18. USO DA TERRA, VULNERABILIDADE E SUBSÍDIOS AO ORDENAMENTO TERRITORIAL EM MICROBACIA

    Directory of Open Access Journals (Sweden)

    Josandra Araújo Barreto de Melo

    2012-01-01

    Full Text Available La Cuenca del Riacho do Tronco, Boa Vista, PB, se inscribe en el Semiárido Brasileño, donde las actividades - la agricultura, la ganadería y la minería, sin técnicas de conservación, han causado la degradación del medio ambiente, con una tendencia a provocar la desertifi cación. En este contexto, se pretende diagnosticar las principales formas de uso de la tierra, la vulnerabilidad de la población y presentar una propuesta para la planificación de las actividades dentro de la cuenca,, contribuyendo a la gestión ambiental local. Como estrategia metodológica, se hizo para integrar datos sociales y ambientales, mediante la interpretación de images de satelite y la aplicación de cuestionarios para diagnosticar el nivel de vulnerabilidad socioeconómica, tecnología e infraestructura para hacer frente a las sequías por la población. A partir de esta integración de la información, fue un elaborado plan de la planifi cación de las cuencas que, de aplicarse, reducirá al mínimo el riesgo de desertificación en el local.

  19. NO RASTRO DA TRAGÉDIA: PROJETOS DESENVOLVIMENTISTAS NA TERRA INDÍGENA WAIMIRI-ATROARI

    Directory of Open Access Journals (Sweden)

    Eduardo Gomes da Silva Filho

    2014-12-01

    Full Text Available In this paper, I present a brief summary of the implementation of major developmental projects in indigenous land Waimiri-Atroari. With the analysis of public, civil-military dictatorship and the private sector in its territory traditionally occupied. From this perspective, we opened the search for the discussion of three major projects: construction of the BR 174, the action of the Paranapanema group, responsible for Mining Taboca S / A, which manages the Pitinga mine and the construction of the Balbina Hydroelectric Plant, analyzing its causes and consequences. The land demarcation process, from the seal of the 1971 decree that created the Indian reservation Waimiri-Atroari, as during the civil-military dictatorship, until the other demarcations, including dealing with the decline of the indigenous territory in 1981, also are objects of investigation and analysis, as well as the granting of authorization permits and operation of these large enterprises.

  20. NO RASTRO DA TRAGÉDIA: PROJETOS DESENVOLVIMENTISTAS NA TERRA INDÍGENA WAIMIRI-ATROARI

    OpenAIRE

    Eduardo Gomes da Silva Filho

    2014-01-01

    In this paper, I present a brief summary of the implementation of major developmental projects in indigenous land Waimiri-Atroari. With the analysis of public, civil-military dictatorship and the private sector in its territory traditionally occupied. From this perspective, we opened the search for the discussion of three major projects: construction of the BR 174, the action of the Paranapanema group, responsible for Mining Taboca S / A, which manages the Pitinga mine and the construction of...