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1

Predação de Opisthocomus hoazin por Spizaetus ornatus e de Bubulcus ibis por Bubo virginianus em Tocantins, Brasil  

Microsoft Academic Search

Predation of Cattle Egret by the Great Horned Owl and Hoazin by the Ornate Hawk-Eagle in western Tocantins State, Brazil. We report the predation of Hoazin Opisthocomus hoazin by an immature Ornate Hawk-Eagle Spizaetus ornatus, a new prey for this species in Brazil. The Ornate Hawk-Eagle roosted together with Hoazin assembly in branches of Sapium haematospermum, typical river borderline vegetation.

Túlio Dornas; Renato Torres Pinheiro

2

Ichthyofauna, fish supply and fishermen activities on the mid-Tocantins River, Maranhão State, Brazil.  

PubMed

This article concerns an inventory of the ichthyofauna from the main channel of the mid-Tocantins River and studies on fisheries in this region including an evaluation of activities from Colônia de Pesca Z-35 of Estreito and Carolina in Tocantins and Maranhão States, Brazil, during 1999 and 2000. This study includes taxonomy and fishery data obtained from field collections and from interviews with the fishermen, carried out in March and July of 2001. The systematic record and fishery data were obtained from the most common species of the ichthyofauna of the mid-Tocantins River. A critical examination of fish resources from this area allows us to conclude that the large commercial species have decreased in number and are qualitatively reduced in that area of Tocantins. This fact may be a result of breaking the main channel of Tocantins, first by the hydroelectric power dam of Tucurui, twenty years ago, followed by the formation of the hydroelectric reservoirs of Lageado, Peixe Angical and Serra da Mesa, that transformed the main channel of Tocantins into a successive cascade of reservoirs. Those events may perhaps modify the profile of the fish community in that area. The obtained data also permit an examination of fisheries in the area, providing an appraisal on forthcoming problems that will be faced by fishermen of Colônia de Pesca Z-35. PMID:20730344

Garavello, J C; Garavello, J P; Oliveira, A K

2010-08-01

3

Deep seismic refraction and gravity crustal model and tectonic deformation in Tocantins Province, Central Brazil  

Microsoft Academic Search

Interpretation of seismic refraction data in the central sector of Tocantins Province, Central Brazil, has produced a seismic crustal model with well-defined upper, intermediate, and lower crust layers having smooth velocity gradient in each layer. The depths to Moho vary from 32 to 43 km, and mean crustal P velocity varies from 6.3 km\\/s, beneath Goiás magmatic arc on the

Jesus Berrocal; Yara Marangoni; Nelsí C. de Sá; Reinhardt Fuck; José E. P. Soares; E. Dantas; Fábio Perosi; Celia Fernandes

2004-01-01

4

Crustal structure model of Central Section of Tocantins Province, Central Brazil, with deep seismic refraction and gravity data  

Microsoft Academic Search

This research is based on the execution of two lines of deep seismic refraction of 300 km of extension (L1- Porangatu and L2-Cavalcante), crossing over central section of Tocantins Province in Central Brazil, from west to east by using, in each line, 120 seismographs with digital recording, and explosions with controlled time and explosive charges between 500 and 1,000 kg

F. A. Perosi; J. A. Berrocal

2006-01-01

5

The Mara Rosa Arch in the Tocantins Province: further evidence for Neoproterozoic crustal accretion in Central Brazil  

Microsoft Academic Search

The Mara Rosa volcano-sedimentary sequence consists of several NNE-trending belts of metavolcanic (metabasalts to metarhyolites) and metasedimentary rocks (micaschists, quartzites, cherts), exposed over large areas of the Tocantins Province, a Neoproterozoic (Brasiliano) orogenic region in the central part of Brazil. The supracrustal belts are separated by terrains dominated by metatonalites and metadiorites and intruded by several post-orogenic granitic and dioritic

Márcio M. Pimentel; Martin J. Whitehouse; Maria das G. Viana; Reinhardt A. Fuck; Machado Nuno

1997-01-01

6

Crustal structure model of Central Section of Tocantins Province, Central Brazil, with deep seismic refraction and gravity data  

NASA Astrophysics Data System (ADS)

This research is based on the execution of two lines of deep seismic refraction of 300 km of extension (L1- Porangatu and L2-Cavalcante), crossing over central section of Tocantins Province in Central Brazil, from west to east by using, in each line, 120 seismographs with digital recording, and explosions with controlled time and explosive charges between 500 and 1,000 kg in each 50 km; GPS receivers were employed in order to control hour and geographical coordinates from recording points. This kind of experiment under those conditions is pioneer in Brazil. Initially the experiment data, which have been considered of good quality, allowed the elaboration of 1D models, using TTInvers program. Successive models were related to represent layers with similar characteristics in a preliminary model aiming of modelling in 2D, accomplished with MacRay program. The 2D models obtained in this work represent the final result of seismic velocity distribution from crust beneath L1 and L2 lines. Results show a crust under central section of Tocantins Province with thickness varying from 36 to 43 km, and whose parameters are correlated to main geological structures existents in surface. Vp as well as Vp/Vs ratio mean values vary about 6.5 km/s and 1.74, respectively, with the exception of fold-thrust belt, whose values are 6.3 km/s and 1.73. Those values reach 6.8 km/s and 1.74 beneath São Francisco craton. There are indicia of double subduction occurred in eastern portion of Tocantins Province with São Francisco craton subducting to west (in ~760 Ma), as well as in western portion, with São Francisco craton subducting to east (in ~620 Ma). The gravimetric model, obtained in this work based on this work seismic model, adequately adjusts with observed gravimetric data by using theoretical densities slightly modified, within the limits allowed by the function employed to calculating the densities based on modelled Vp values. Adopted mantle densities to modelling took in consideration Paleoproterozoic age, beneath São Francisco craton, less dense (3.31 g/cm3), and with higher Vp (8.26 km/s), as well as Neoproterozoic one, beneath Tocantins Province, denser (3.34 g/cm3), and with lower Vp (8.07 km/s).

Perosi, F. A.; Berrocal, J. A.

2006-05-01

7

Différenciation morphologique et génétique des populations de douroucoulis ( Aotus infulatus, Primates, Platyrhiniens, Cebidae) provenant des rives droite et gauche du rio Tocantins (Brésil)  

Microsoft Academic Search

The cranial morphology of 28 specimens of night monkeys (genus Aotus) was examined using three-dimensional geometrical morphometrics. New results of the morphological differences between two populations of Aotus infulatus from both banks of the Rio Tocantins are proposed. These morphological results totally agree with the genetic distinction of these populations proposed by Schneider – and Sampaio –, and probably point

Sébastien Couette

2007-01-01

8

Mapeamento da cobertura natural e uso da terra como subsidio ao estudo da dinâmica e ocupação do Estado do Tocantins entre 1990 e 2007  

Microsoft Academic Search

In the Amazon Region large areas of savannas and forests have been changing in pasture and agriculture that modify the environment resulting in environmental and economic problems. The Tocantins state has climatics and physicals features common with Amazon and the Brazil Central Region and it is a transiction zone. On the purpose of study the dynamic of coverage and land

Marco Aurélio Barros

9

Molecular variability in Brycon cf. pesu Müller and Troschel, 1845 (Characiformes: Characidae) from the Araguaia-Tocantins Basin.  

PubMed

Brycon pesu is a small-sized fish distributed throughout the Amazon and Orinoco Basins and other coastal basins of northeastern South America. Brycon cf. pesu specimens from the Araguaia-Tocantins Basin are currently separated into two morphotypes, Brycon sp1 and Brycon sp2, owing to different coloration of their anal fin. Brycon sp2 has a reddish margin stripe on the anal fin which morphologically distinguishes it from Brycon sp1. In the present research, nuclear and mitochondrial markers were used to test the hypothesis that the Brycon sp1 and Brycon sp2 morphotypes are distinct species. Specimens from the two morphotypes were collected from the Lajeado Hydroelectric Plant and the Palmas River in the Araguaia-Tocantins Basin. Thirty-five loci obtained by the amplification of five inter-simple sequence repeat primers were analyzed but no species-specific bands were detected. Electrophoretic profiles obtained from 5S rDNA non-transcribed spacer amplification failed to show any differentiation in morphotypes. These results were corroborated by nucleotide sequence analysis of the mtDNA control region, in which 24 polymorphic nucleotide sites, representing a polymorphism rate of only 5%, were detected. The low rates of polymorphism detected by inter-simple sequence repeat, non-transcribed spacer and mtDNA D-loop markers strongly reject the hypothesis that the two morphotypes Brycon sp1 and Brycon sp2 represent distinct species within Brycon cf. pesu. Further studies are needed to obtain conclusive data on the notion that the coloration of the anal fin is an intraspecific polymorphism, possibly related to environmental factors. PMID:18273825

Panarari-Antunes, R S; Prioli, A J; Prioli, S M A P; Júlio, H F; Agostinho, C S; Prioli, L M

2008-02-01

10

Anthropically dislodged assemblages of sponges (Porifera: Demospongiae) in the River Araguaia at Araguatins, Tocantins State, Brazil Assembléias de esponjas desalojadas no Rio Araguaia em Araguatins, Estado do Tocantins, Brasil  

Microsoft Academic Search

A recent outbreak of an human ocular disease at Araguaia River by the town of Araguatins, TO, Central Amazonia, along the low water period of 2005 required pathological analyses of surgically extracted ocular tissues. Spicules which invest the gemmules of the freshwater sponges Drulia uruguayensis and D. ctenosclera were found inside these ocular materials. Such relation between an ocular disease

C. Volkmer-Ribeiro; Salvador França; Rodovia Washington Luís

11

Two new species of Leporinus Agassiz, 1829 from Araguaia-Tocantins system, Amazon basin, Brazil (Ostariophysi, Anostomidae).  

PubMed

Two new species of genus Leporinus from the Araguaia-Tocantins system, Amazon, Brazil, are described. Leporinus unitaeniatus n. sp. is distinguished from the remaining species of this genus by the presence of a conspicuous longitudinal dark brown bar along the lateral line on the flanks, and Leporinus geminis n. sp. is distinguished by an inconspicuous dark bar combined with three large and vertically elongated brown blotches on the trunk; the first on the dorsal fin region, the second anterior to the adipose fin and the third on the caudal peduncle. Both are medium-sized species of the genus (up to 150 mm SL) and share the following combination of meristic characters: 4 teeth on each premaxillary and dentary; 40-43 scales in the lateral line, 6/I/5 scales on the transversal line, and 16 series of scales around the caudal peduncle. L. unitaeniatus n. sp. has a sub-terminal mouth and tooth series formed by incisive-like elongated teeth frontally turned and with only a straight cutting edge decreasing in size like the steps of stairs from the teeth pair of symphysis. Leporinus geminis n. sp. has a sub-inferior mouth and the tooth series shaped by large incisive-like teeth forming an arched cutting edge, decreasing in size from the symphysal pair of teeth. PMID:19347152

Garavello, J C; Santos, G M

2009-02-01

12

ADOÇÃO DE NOVOS PARADIGMAS NA ORGANIZAÇÃO E GESTÃO DE EMPREENDIMENTOS SOLIDÁRIOS: UM ESTUDO SOBRE O PROCESSO PRODUTIVO DO AÇAÍ ATRAVÉS DAS ASSOCIAÇÕES E COOPERATIVAS NO TERRITÓRIO RURAL DO BAIXO TOCANTINS – PARÁ – BRASIL  

Microsoft Academic Search

As transformações no mundo do trabalho vividas, desde o final da década de 60, pelos países capitalistas e os impactos daí resultantes sobre a reestruturação do sistema produtivo têm definido novas práticas produtivas, que precarizam as relações de trabalho, favorecem o desemprego, baixos salários e exigem novas e melhores qualificações dos trabalhadores. Nesse contexto, estes se vêem diante de um

Lucia Cristina Andrade; Roselene Souza Portela; Euzalina Silva Ferrao; Armando Lirio Souza; Adebaro Alves Reis

2008-01-01

13

Corumbiara: o massacre dos camponeses. Rondônia\\/Brasil 1995  

Microsoft Academic Search

O massacre de Corumbiara mostra que o conflito na fazenda Santa Elina tem as mesmas características de milhares de conflitos por terra que aconteceram e acontecem no Brasil, e que o massacre de Corumbiara tem a mesma gênese de tantos outros massacres acontecidos contra camponeses, posseiros e índios ao longo de quinhentos anos de luta pelo acesso e posse à

Helena Angélica de Mesquita

2007-01-01

14

Un mito del hambre en el nordeste de Brasil  

Microsoft Academic Search

El objetivo del presente estudio es permitir la comprensión, mediante un abordaje etnográfico, de los significados del hambre en las vivencias de actores sociales que enfrentan la pobreza extrema en un barrio de Salvador, Bahía, Brasil. Los relatos se han analizado con el objeto de entender la construcción de signos inherentes al sufrimiento de quienes padecen de hambre cotidianamente. En

Maria do Carmo S. Freitas; Paulo G. L. Pena

2003-01-01

15

Um Estudo Exploratório sobre Inteligência Competitiva no Brasil AUTOR  

Microsoft Academic Search

This is an exploratory study and its main objective was to analyse the daily work from Competitive Intelligence Professionals, as analysts and managers in Brasil. It was developed under a sample based on 79 companies among 500 companies from Maiores and Melhores Guide 2007, with a structured questionnaire and interviews. The main results indicated that companies follow the competitors every

ALFREDO PASSOS DA SILVA

16

Improving weather modeling in South America through IDD-Brasil  

Microsoft Academic Search

The IDD-Brasil constitutes of an international collaboration among Universidade Federal do Rio de Janeiro (LPM\\/UFRJ), Centro de Previsão de Tempo e Estudos Climáticos (CPTEC\\/INPE) and the Unidata Program Center (Unidata\\/UCAR), which connects several universities and research centers across the Americas in a network to share real-time hydro meteorological data. Using this network as a new path to deliver and acquire

G. O. Chagas

2007-01-01

17

PRODUÇÃO E COMERCIALIZAÇÃO DA CASTANHA DO BRASIL (BERTHOLLETIA EXCELSA, H.B.K) NO ESTADO DO ACRE BRASIL, 1998-2006  

Microsoft Academic Search

A castanha do brasil (Bertholletia excelsa, H.B.K.), é uma planta nativa da Amazônia, sendo uma das mais importantes espécies de exploração extrativista. Suas amêndoas apresentam alto valor econômico, tornando-se uma das principais atividades econômicas na região amazônica. O presente estudo teve como objetivo fazer um levantamento da produção e comercialização da castanha-do-brasil no Estado do Acre, n o período de

Lilliane Martins; Zenobio Perelli Gouveia E Silva; Breno Carrillo Silveira

2008-01-01

18

Recent results with radioactive ion beams in Brasil (RIBRAS)  

NASA Astrophysics Data System (ADS)

The RIBRAS facility (Radiactive Ion Beams in Brasil) is installed next to the 8 MV Pelletron Tandem of the Nuclear Physics Laboratory of the Institute of Physics of the University of Sa~o Paulo. It consists of two superconducting solenoids with maximum magnetic field of B=6.5T. Light radioactive ion beams are produced through transfer reactions, using solid or gaseous production targets of Be, LiF, 3He etc. The solenoids make a magnetic rigidity selection and the use of the two solenoids with a degrader between them allows the production of quite pure secondary beams. Beams of 6He, 8Li, 7Be, 10Be, 8B, 12B are currently produced and used to study elastic, inelastic, and transfer reactions on a variety of light, medium mass and heavy secondary targets. Some examples of reactions recently studied are presented below.

Lépine-Szily, A.; Lichtenthäler, R.; Guimara~es, V.; Mendes, D. R., Jr.; Descouvemont, P.; de Faria, P. N.; Barioni, A.; Leistenschneider, E.; Morcelle, V.; Morais, M. C.; Pires, K. C. C.; Condori, R. Pampa; Assunça~o, M. M.; Scarduelli, V.; Gasques, L. R.; Zamora, J. C.

2012-10-01

19

Zoneamento agrícola e época de semeadura para trigo no Brasil Agricultural zoning and sowing dates for wheat in Brazil  

Microsoft Academic Search

Resumo - Um Programa de Zoneamento Agrícola para o Brasil, subsidiando a política de crédito e securidade rural, começou a ser posto em prática pelo Ministério da Agricultura, Pecuária e Abastecimento (MAPA) a partir da safra de inverno de 1996, com a cultura de trigo no sul do Brasil. Este artigo apresenta uma síntese dos trabalhos sobre zoneamento agrícola para

Gilberto Rocca da Cunha; João Carlos Haas; Jaime Ricardo; Tavares Maluf; Paulo Henrique Caramori; Eduardo Delgado Assad; Hugo José Braga; Jurandir Zullo Jr; Cláudio Lazzarotto; Sérgio Gonçalves; Marcos Wrege; Dionísio Brunetta; Sérgio Roberto Dotto; Hilton Silveira Pinto; Orivaldo Brunini; Vera Magali; Radtke Thomé; Sérgio Luiz Zampieri; Aldemir Pasinato; Márcia Barrocas Moreira Pimentel; Cristina Pandolfo

2001-01-01

20

Low energy nuclear reactions with RIBRAS, Radioactive Ion Beam in Brasil, system  

Microsoft Academic Search

RIBRAS, Radioactive Ion beam in Brasil, is a system based on superconducting solenoids which can produce low energy RNB (Radioactive Nuclear Beams) at the University of São Paulo, Brazil. Secondary radioactive beams of light particles such as 6He, 7Be and 8Li have been produced and low energy elastic scattering and transfer reaction experiments have been performed. The recent scientific program

V. Guimarães; A. Lépine-Szily; R. Lichtenthäler; P. N. de Faria; A. Barioni; K. C. C. Pires; V. Morcelle; D. R. Mendes; J. C. Zamora; M. C. Morais; R. P. Condori; E. A. Benjamim; D. S. Monteiro; E. Crema; A. M. Moro; J. Lubian

2011-01-01

21

DINÂMICA DA EXPANSÃO FLORESTAL EM MOSAICOS DE FLORESTA E CAMPOS NO SUL DO BRASIL  

Microsoft Academic Search

Resumo No sul do Brasil vegetação campestre e florestal interpenetram-se sob condições climáticas que seriam típicas de predomínio florestal. Evidências paleoecológicas indicam que as florestas no sul iniciaram sua expansão sobre os Campos a partir de alterações climáticas ocorridas há cerca de 4000 anos antes do presente, um processo que, parece, tende a continuar. A conservação dos Campos tem sido

Valério De Patta Pillar

22

Análisis del metabolismo energético y de materiales de Brasil, Chile y Venezuela  

Microsoft Academic Search

El artículo presenta una aplicación de las metodologías de Análisis de Flujo de Materiales y Análisis Integrado Multi- Escala del Metabolismo Social (MSIASM, siglas en inglés) para la caracterización de modelos de desarrollo económico de Brasil, Chile, y Venezuela, mediante la utilización combinada de datos económicos y de uso de energía y materiales para diferentes sectores y en diversos niveles

Nina Eisenmenger; Jesús Ramos Martín; Heinz Schandl

2007-01-01

23

DISTRIBUIÇÃO DE RENDA E POBREZA NO BRASIL NO PERÍODO DE 1995 A 1999  

Microsoft Academic Search

PALAVRAS-CHAVE: Distribuição de renda; Pobreza; Decomposição; Elasticidade e Amostra complexa. Resumo - Esse artigo investiga a evolução da distribuição de renda e da pobreza no Brasil durante o período 1995-1999 levando em conta todas as características do plano amostral complexo da Pesquisa Nacional por Amostra de Domicílios (peso, estrato e unidade primária). Adicionalmente, a distribuição de renda do estrato que

Patrick Wöhrle Guimarães

24

Satisfação de Idosos com Aparelhos Auditivos Concedidos no Estado do Tocantins Satisfaction of Elderly with Hearing Aid Conceded in Tocantins State  

Microsoft Academic Search

Method: Forty elderly hearing aid users were selected to complete the Satisfaction with Amplification in Daily Life scale. This self-report inventory was developed by COX and ALEXANDER (1999) and was translated into Portuguese and modified according to individual's reality. Besides the Satisfaction with Amplification in Daily Life questionnaire, additional tools were used to help better understand the factors that interfere

Janaina Santo; Amore de Carvalho

25

MODELAGEM MATEMÁTICA DOS NÍVEIS D'ÁGUA NO RIO ARAGUAIA  

Microsoft Academic Search

Resumo - Este trabalho é pioneiro para a região Centro-Oeste do Brasil e visa ao aprofundamento da problemática do aproveitamento do Rio Araguaia como via navegável para transportar as safras de grãos das regiões Centro-Norte. O Programa de Desenvolvimento da Hidrovia Tocantins- Araguaia é uma iniciativa do Ministério dos Transportes para estabelecer a navegação fluvial confiável e segura em 2.242

Rone Antônio de Azevedo

26

[Presence of IgM antibodies for Leptospira interrogans in wild animals from Tocantins State, 2002].  

PubMed

Four hundred and twenty-seven serum samples of wild animals were tested against 18 serovars of Leptospira interrogans. Of 286 samples of Cebus apella, 46 (16.1%) were positive for the serovars pomona, brasiliensis, mini, swajizak, grippotyphosa, sarmin, fluminense, autumnalis, hebdomadis, guaratuba, javanica and icterohaemorrhagiae. Of 82 samples of Alouatta caraya, 2 (2.4%) were positive for the serovars mangus and fluminense. Of 31 samples of Nasua nasua, 4 (12.9%) were positive for the serovars fluminense and javanica, and of 10 samples of Cerdocyon thous, 2 (20 %) were positive for the serovars fluminense and brasiliensis. Seven samples of Dasyprocta sp, 6 of Tamandua tetradactyla and 5 of Euphractus sexcintus did not present reactivity. PMID:16906258

de Souza Júnior, Milton Formiga; Lobato, Zélia Inês Portela; Lobato, Francisco Carlos Faria; Moreira, Elvio Carlos; de Oliveira, Rogério Rodrigues; Leite, Geysa Goulart; Freitas, Theonys Diógenes; de Assis, Ronnie Antunes

27

Diversity and antimicrobial activities of endophytic fungi isolated from Myrcia Sellowiana in Tocantins, Brazil  

Technology Transfer Automated Retrieval System (TEKTRAN)

One hundred forty six isolates of endophytic fungi were recovered from leaves and branches of the medicinal plant, Myrcia sellowiana, in Brazil. All isolates were purified on PDA and the strains were grouped into 51 morphotypes. Each isolate was tested for production of volatiles and agar diffusib...

28

Aspectos clínicos e epidemiológicos da leishmaniose visceral em menores de 15 anos procedentes de Alagoas, Brasil Clinical and epidemiological aspects of visceral leishmaniasis in children up to 15 years of age in Alagoas, Brasil  

Microsoft Academic Search

In order to investigate epidemiological and clinical characteristics of visceral leishmaniasis in children up to 15 years old, a prospective study was carried out in Alagoas, Brasil from 1981 to 1995. Of the 530 diagnosed cases, predominantly from the rural area of Alagoas State, 58% were male and 42% female, being 55.3% children under 5 years old. The most frequently

Célia Maria Silva Pedrosa; Maria Mauricio da Rocha

29

Perfil da automedicação em idosos participantes de grupos da terceira idade de uma cidade do sul do Brasil  

Microsoft Academic Search

Resumo Introdução: A automedicação tem sido objeto de muitas pesquisas e assume uma importância maior quando é realizada por idosos, pois geralmente representam um grupo polimedicado. Objetivo: Avaliar a automedicação em idosos participantes de grupos da terceira idade localizados em uma cidade do sul do Brasil. Métodos: Foi realizado um estudo transversal baseado em entrevistas com idosos participantes de grupos

Edézio Antunes Cascaes; Maria Luiza Falchetti; Dayani Galato

30

Nova ocorrência de Asiatoceratodus (Osteichthyes, Dipnoiformes) na Formação Alcântara, Eocenomaniano da bacia de São Luís, MA, Brasil  

Microsoft Academic Search

RESUMO - O Cretáceo médio está bem representado na Bacia de São Luís pelos depósitos predominantemente areníticos da Formação Alcântara. Na Ilha do Cajual, norte do Estado do Maranhão, nordeste do Brasil, uma paleocomunidade continental datada como de idade eocenomaniana inclui vegetais, peixes, crocodilomorfos e dinossauros. Duas placas dentárias, coletadas em uma fácies conglomerática, com sete cristas arranjadas de forma

DARCILÉA FERREIRA CASTRO; EDUARDO VIEIRA; MANUEL ALFREDO MEDEIROS

2004-01-01

31

FARINHA MISTA DE MANDIOCA COM CASTANHA-DO-BRASIL: UMA ALTERNATIVA AGROECOLÓGICA PARA A RESERVA EXTRATIVISTA CAZUMBÁ-IRACEMA  

Microsoft Academic Search

A farinha de mandioca é o principal produto em importância alimentar servindo como fonte de energia e geração de renda para os agricultores familiares da Amazônia. A castanha-do-brasil é uma das principais fontes de proteína vegetal, geração de emprego e renda para os extrativistas da Amazônia. Este trabalho teve como objetivo analisar o arranjo produtivo local da farinha mista de

Amauri Siviero; Carlo Filipe E. Raimundo; Lauro Saraiva Lessa; Thiago Andres Delunardo; Oscar Borreani Pardinas

2008-01-01

32

Projeto Missões, Computação Gráfica Multimídia da Reconstituição Computadorizada da Redução de São Miguel Arcanjo no Rio Grande do Sul - Brasil  

Microsoft Academic Search

The Design Missions - Graphical Computation, recoups in a graphical and digital the pictures of the Church and the Reduction of São Miguel Arcanjo, RS, Brasil, allowing to the public a virtual stroll through the set at the time of its foundation in 1687. Initiate in 1990, the design refers the appropriation and implementation of the new computational technologies. The

Isabel A. Medero Rocha; Voltaire Danckwardt

2002-01-01

33

Expectativas, volatilidad del mercado de capitales y comportamiento de la inversión privada. Teoría y evidencia empírica para Brasil  

Microsoft Academic Search

La investigación que se resume en este trabajo representa la primera etapa de un esfuerzo que pretende analizar algunos aspectos importantes de la interacción entre el mercado accionario y el comportamiento de la inversión de las empresas, para un número de países en desarrollo endeudados. El presente trabajo analiza el caso de Brasil y presenta algunos resultados de estimaciones preliminares

Mansoor Dailami

34

Scientific program of the Radioactive Ion Beams Facility in Brasil (RIBRAS)  

NASA Astrophysics Data System (ADS)

The RIBRAS facility (Radioactive Ion Beams in Brasil) is installed in connection with the 8MV Pelletron tandem of the University of São Paulo Physics Institute. It consists of two superconducting solenoids which focalize light radioactive secondary beams of low energy, produced by transfer reactions. Recent experimental results include the elastic scattering and transfer reactions of 6He halo nucleus on 9Be, 27Al, 51V and 120Sn targets. The elastic scattering and transfer of 8Li and 7Be on several targets is also being studied. The transfer reaction 8Li(p,?)5He of astrophysical interest was also studied in the E=0.2-2.5MeV energy range.

Lépine-Szily, A.; Lichtenthäler, R.; Guimarães, V.; Mendes, D. R.; de Faria, P. N.; Barioni, A.; Benjamim, E. A.; Pires, K. C. C.; Morcelle, V.; Condori, R. Pampa; Morais, M. C.; Descouvemont, P.; Moro, A. M.; Rodríguez Gallardo, M.; Assunção, M. M.; Alcantara Nunez, J. A.; Shorto, J. M. B.; Zamora, J. C.; Leistenschneider, E.; Lima, C. E. F.

2010-03-01

35

Producción de hojarasca en un bosque semideciduo estacional en São Pedro, Potirendaba, estado de São Paulo, Brasil  

Microsoft Academic Search

Litter production was determined during a year in a semideciduous forest located in Potirendaba, State of São Paulo, Brasil. Litterfall was collected at monthly intervals, from June 1999 to May 2000, by placing 15 traps of 0.25 m 2 of surface area. The material was separated into five components and the sorted samples were dried at 80ºC in order to

Maristela Sanches Bertasso-Borges; Dania Prieto Trueba; Fabrícia C. Peral; Cristiane A. R. Tamburi; Ronaldo Caseri; Rosalina Berazaín

36

OCORRÊNCIA DE ANTICORPOS CONTRA Toxoplasma gondii EM SUÍNOS E OVINOS ABATIDOS NO MUNICÍPIO DE GUARAPUAVA, PR, BRASIL  

Microsoft Academic Search

MOURA, A.B. DE; OSAKI, S.C.; ZULPO, D.L.; MARANA, E.R.M. (Occurrence of anti- Toxoplasma gondii antibodies in swine and ovine slaughtered at Municipality of Guarapuava in the State of Paraná, Brazil.) Ocorrência de anticorpos contra Toxoplasma gondii em suínos e ovinos abatidos no município de Guarapuava, PR, Brasil. Revista Brasileira de Parasitologia Veterinária, v. 16, n. 1, p. 54-56, 2007. Departamento

ANDERSON B. DE MOURA; SILVIA C. OSAKI; DAUTON L. ZULPO; ELIZABETE R. M. MARANA

37

Controle biológico natural de pulgões (Hemiptera: Aphididae) em lavoura de trigo por parasitóides (Hymenoptera, Aphidiinae), no município de Medianeira, PR, Brasil Natural biological control of aphids (Hemiptera: Aphididae) in a wheat field by parasitoids (Hymenoptera, Aphidiinae) in Medianeira, PR, Brazil  

Microsoft Academic Search

Os pulgões são um dos principais problemas fitossanitários da cultura do trigo no sul do Brasil, sendo alvo de um programa de controle biológico por parasitóides implantado no Brasil a partir da década de 1970. A despeito do sucesso inicial rapidamente obtido não há na região oeste do Paraná nenhum estudo recente avaliando a situação atual do controle biológico dos

Luis Francisco Angeli Alves; Tânia M. V. Prestes; Agostinho Zanini; Maria F. Dalmolin

38

DISCUSSÃO SOBRE INTOXICAÇÕES POR MEDICAMENTOS E AGROTÓXICOS NO BRASIL DE 1999 A 2002 Discussion about Medication and Pesticide Poisonings in Brazil from 1999 to 2002  

Microsoft Academic Search

RESUMO: Medicamentos e agrotóxicos são intensamente consumidos e os contextos produtivos e mercadológico nos quais estes estão inseridos aproximam os riscos à saúde e ao meio ambiente relacionados à sua utilização, dentre os quais estão as intoxicações, cujos principais agentes são os medicamentos e agrotóxicos. Objetivos. Discutir o padrão de intoxicações por medicamentos e agrotóxicos no Brasil, mostrando a aproximação

Reginaldo T. Mendonça; Jaqueline L. Marinho

39

AVALIAÇÃO DE TÉCNICAS DE REGRESSÃO E DE UMA NOVA ABORDAGEM PARA A OTIMIZAÇÃO DO PROCESSO DE DESFOSFORAÇÃO DE AÇO NO CONVERTEDOR LD DA V&M DO BRASIL  

Microsoft Academic Search

This paper demonstrates a new model to the phosphorus forecasting content to LD converter from V&M do Brasil. The model from the previous work, trough multiple regression, is evaluated with a new regression, in this time, nonlinear, represented by an Artificial Neural Network. It is demonstrated a new methodology to the phosphorus minimization grade from the process variables available at

Daniel Henrique Dominguete; Leandro Peixoto Almeida; Alexandre Pereira Moreira; Paulo Miranda Gonçalves; Sanderson Vanucci Carvalho

2006-01-01

40

Hipertensão arterial sistêmica no Brasil: o que avançamos no conhecimento de sua epidemiologia? Systemic hypertension in Brazil: how much have we improved our knowledge about its epidemiology?  

Microsoft Academic Search

RESUMO A hipertensão arterial sistêmica (HAS), um dos prin- cipais determinantes da morbidade e mortalidade cardiovasculares, tem sido objeto de estudo em todo o mundo, seja por seus aspectos clínicos, fisiopatológicos ou como problema de saúde na coletividade. No Brasil, os primeiros estudos sobre prevalência surgiram na década de 1970, com produções crescentes na litera- tura e em congressos desde

Marta de Medeiros Neder; Arthur Augusto; Nogueira Borges

41

EFICIÊNCIA PRODUTIVA DE EMPRESAS DA INDÚSTRIA DE ALIMENTOS NO BRASIL Grupo de Pesquisa: Estrutura, Evolução e Dinâmica dos Sistemas Agroalimentares e Cadeias Agroindustriais  

Microsoft Academic Search

Resumo: A indústria de alimentos no Brasil é um setor de g rande importância para a economia brasileira com poucos estudos publicados quanto ao seu desempenho operacional. Este trabalho avalia a eficiência relativa (técnica e de escala) de uma amostra de empresas de diferentes segmentos desta indústria, utilizando-se para tanto o Método DEA. Os segmentos analisados foram: Conglomerados Alimentícios; Óleos

Apresentação Oral-Estrutura; OSCAR TUPY

42

Relações solo-geoambiente em áreas de ocorrências de Ipucas na planície do Médio Araguaia - Estado de Tocantins  

Microsoft Academic Search

RESUMO - Dentre as paisagens do médio rio Araguaia, destacam-se as extensas planícies e depressões sazonalmente alagadas. Nelas se inserem formações florestais higrófilas denominadas Ipucas, como enclaves peculiares pela sua fitossociologia e ambiente pedogeomorfológico. Esses fragmentos florestais naturais ocorrem na planície fluvial, em região de ecótono entre o Cerrado e a Floresta Amazônica. Neste estudo, foi selecionada uma área de

Alan Kardec Elias Martins; Carlos Ernesto G. R. Schaefer; Elias Silva; Vicente Paulo Soares; Guilherme Resende Corrêa; Bruno Araújo Furtado de Mendonça

2006-01-01

43

Geographical patterns and partition of turnover and richness components of beta-diversity in faunas from Tocantins river valley.  

PubMed

There has been a resurging interest in patterns of ?-diversity, especially by the mechanisms driving broad-scale, continental and global patterns, and how partitioning ?-diversity into richness (or nestedness) and turnover components can be linked with such mechanisms. Here we compared two recent methodologies to find richness and turnover components of ?-diversity, using a large regional scale dataset of mammal, bird, reptiles and amphibian species found in seven regions of Central, North and Northeastern Brazil. As well as a simple comparison of the metrics available, we analyzed spatial patterns (i.e., distance-decay similarity) and the effects of biome type in these components using raw and partial Mantel tests. Our analyses revealed that turnover estimated using Baselga's (2010) approach is slightly higher than the estimate using Carvalho's et al. (2012) approach, but all analyses show consistent spatial patterns in species turnover using both methods. Spatial patterns in ?-diversity revealed by Mantel tests are also consistent with expectations based on differential dispersal abilities. Our results also reinforce that spatial patterns in ?-diversity, mainly in the turnover components expressing faunal differentiation, are determined by a mix or broad scale environmental effects and short distance spatially-structured dispersal. PMID:22990820

Tonial, M L S; Silva, H L R; Tonial, L J; Costa, M C; Silva Júnior, N J; Diniz-Filho, J A F

2012-08-01

44

Susceptibility of Biomphalaria straminea from Peixe Angical dam, Tocantins, Brazil to infection with three strains of Schistosoma mansoni.  

PubMed

Environmental changes from water resource developmental projects affect the epidemiology of water-associated diseases, as well as malaria and schistosomiasis. Aiming to investigate the occurrence and distribution of freshwater snails of medical and veterinary importance in the area of influence of the Peixe Angical hydroelectric dam, a survey has been conducted over four years (2004-2008). The study has revealed the occurrence of populations of Biomphalaria straminea (Dunker) in all municipalities surrounding the lake. Studies on parasite-mollusc compatibility were undertaken using 35 populations of B. straminea, descendants of specimens obtained from that area and three strains of Schistosoma mansoni (Sambon) (BH, CM and CMO). The main results are as follows: (i) among the 1,314 specimens used, eight had been infected (infection index of 0.6%) with only the BH strain, (ii) for B. straminea populations, the mortality index was 6.8% and, depending on the strain used, the indexes were 4.6%, 8.49% and 19% with BH, CM and CMO strains, respectively, (iii) the infection indexes varied according to the B. straminea populations, ranging from 0-12.5% and (iv) the duration of the precercarial period varied from 25-49 days. These results, in addition to environmental and social changes that took place in the Peixe Angical dam region, indicate the possibility of B. straminea emerging as a schistosomiasis vector in this area. PMID:20721496

Fernandez, Monica Ammon; Thiengo, Silvana Carvalho

2010-07-01

45

Single Particle Scanning Electron Microscopy Analysis of Wet-Season Aerosol Collected in the Amazonian Tropical Rain Forest (Manaus, Brasil)  

NASA Astrophysics Data System (ADS)

Single particle analysis of aerosols particles larger than 0.2 ?m diameter was performed on samples collected in the tropical rain forest (Manaus, Brasil) during the AMAZE campaign in February and March 2008. The elemental composition and morphology of the particles were determined using SEM-EDX. The aerosol particles were divided into 10 groups according to their chemical composition and morphology: droplets of organic aerosol (OA), primary biogenic particles with and without OA coatings, other carbonaceous aerosol with and without OA coatings, mineral dust with and without OA coating and sea salt with and without OA coatings were identified as the most abundant aerosol groups. We present size distributions for all particle groups and the abundance of these groups in different size ranges. Due to careful investigation of the samples at a low acceleration voltage for the first time OA droplets and coatings were identified as a significant contribution to wet season aerosol mass collected in the Amazonian tropical rain forest, during single particle SEM analysis. During days with low aerosol loadings, OA droplets typically accounted for >50% of the accumulation mode aerosol, OA droplets with sea salt core (20- 40%), other carbonaceous aerosol (5-10%), mineral dust (5-10%), and primary biogenic particles with and without OA coatings accounted for most of the remainder. Coarse mode particles were dominated by primary biogenic particles with (>50%) and without (~10-20%) OA coatings. Mineral dust (~10- 20%), sea salt (~10%), dust with OA coatings (~10%) and OA droplets (~5%) accounted for most of the remainder. During days with higher particle numbers the relative abundance of other carbonaceous aerosol with (~20%) and without (~10%) OA coatings increased. The high frequency of OA coatings on different particles types has implications for the radiative properties as well as the hygroscopic behavior of wet season aerosol particles. For the first time we investigate the frequency of such coatings on different particle types and for different size ranges.

Sinha, B. W.; Huth, J.; Hoppe, P.; Borrmann, S.

2008-12-01

46

Geology, petrology and geochemistry of the "Americano do Brasil" layered intrusion, central Brazil, and its Ni-Cu sulfide deposits  

NASA Astrophysics Data System (ADS)

The "Americano do Brasil" Complex (ABC) is part of a cluster of coeval synorogenic mafic-ultramafic intrusions emplaced during the Brasiliano/Pan-African Orogenic Cycle in Brazil. The medium-sized ABC consists of interlayered dunite, peridotite, websterite, and gabbronorite. High Fo values of olivine (up to Fo88) and the crystallization sequence of the ABC (Ol + Chr ? Ol + Opx + Chr ? Cpx + Opx ? Opx + Pl + Cpx ? Opx + Pl + Cpx + Ilm + Mag) suggest crystallization from tholeiitic high-MgO parental magmas. Light rare earth element (REE)-enriched mantle-normalized REE profiles and ?Nd(T) values of +2.4 for cumulate rocks from the ABC suggest a depleted mantle source for the parental magma. The ABC Ni-Cu sulfide deposit (3.1 Mt at 1.12 wt.% Ni and 1.02 wt.% Cu) consists of three distinctively different orebodies (S1, S2, and G2). The S2 orebody, an unusual occurrence of stratiform massive sulfide hosted by dunite and peridotite in the interior of a layered intrusion, results from sulfides accumulated at the transient base of the magma chamber following a new influx of parental magma. The G2 orebody has an irregular and roughly cylindrical shape, consisting mainly of net-textured sulfides. The G2 orebody is hosted by peridotite and pyroxenite and located stratigraphically below the S1 orebody. S2 and G2 orebodies are characterized by low Cu/Cu + Ni ratios (mainly below 0.4). The S1 orebody, hosted by websterite and gabbronorite in the more fractionated sequence of the ABC, is a cluster of several irregular discontinuous orebodies of Ni-Cu disseminated sulfides. The sulfides of the S1 orebody have high Cu/Cu + Ni ratios (mainly between 0.5 and 0.8) and are highly depleted in PGE. The S1 orebody is interpreted to result from a later event of sulfide segregation in the magma chamber, possibly following the event that originated the G2 orebody. The bulk of ?34S values for sulfides of the ABC orebodies and their host rocks fall in the range of 0 ± 2‰. Higher ?34S values (between 3‰ and 5‰) are restricted to pyrite from xenoliths of gneiss located close to the S1 orebody and sulfides from the S1 orebody. Crustal xenoliths and chemical data (lithogeochemistry and sulfur isotope composition) provide evidence of crustal contamination of the igneous rocks hosting the S1 orebody, suggesting that sulfur saturation was induced by contamination with sulfide-bearing crustal rocks. The ABC deposit is an example of Ni-Cu sulfide mineralization hosted by synorogenic mafic-ultramafic intrusions. The S2 orebody is the first documented example of an economic stratiform massive sulfide orebody located within layered intrusions, expanding the opportunities for exploration of Ni-Cu sulfides in orogenic regions worldwide.

E Silva, Jonas Mota; Ferreira Filho, Cesar Fonseca; Bühn, Bernhard; Dantas, Elton Luiz

2011-01-01

47

Solar distillation in Brasil  

Microsoft Academic Search

Solar stills are found to be a more economical means of providing fresh water than flash distillation, reverse osmosis or vapor compression when daily requirements amount to less than 100 cu m. The basin-type solar still design examined in this paper involves simple construction and inexpensive materials. More efficient than the simple solar still is the multiple-effect still, which relies

P. J. Catania; P. C. Lobo

1979-01-01

48

Avaliação de Empresas de Pequeno Porte no Brasil através da Metodologia Construtivista de Apoio à Decisão MCDA-C  

Microsoft Academic Search

Esta pesquisa apresenta um método que, sob a ótica construtivista, permite construir modelos para avaliar empresas de pequeno porte no Brasil, com base nas percepções e juízos de valor do investidor. Para tanto, este trabalho se propôs a utilizar uma metodologia multicritério de apoio a decisão construtivista (MCDA-Construtivista), que permitiu operacionalizar o método aqui proposto, a fim de melhor refletir

Marcus Vinicius Andrade Lima; Leonardo Ensslin; Ana Lucia de Miranda Lopes; Ademar Dutra

2008-01-01

49

Presentation of the Multimédia Game "Geolover" Concept, to Educational Enchancement of the Geolocical Heritage of the Following Regions: "Ilha do Fogo" (Cabo-Verde), Seridó (Brasil), Sabugal (Portugal) and Açores (Portugal)  

NASA Astrophysics Data System (ADS)

"Geolover" - Presentation of the multimédia game concept, to educational enchancement of the geolocical heritage of the following regions: : "Ilha do Fogo" (Cabo-Verde), Seridó (Brasil), Sabugal and Açores (Portugal). "Geolover" is a multitouch game, played by four players simultaneously, identified by 4 mascots and using as sceneries, the four regions landscapes, aimed to the young people with ages between 8 and 12 years old. The main objective is value the geological heritage of the Ilha do Fogo (Cabo Verde), Seridó in State of Rio Grande do Norte (Brasil) , Sabugal in Beira Alta province (Portugal) and Arquipélago dos Açores (Portuguese autonomous region). These regions have a great geological heritage like volcanology, plutonic rocks, sedimentar formations, metamorphic, paleontologic, mineralogic, geomorphologic, hydric and mining resources. Such heritage is being used in the different regions has base of studies to senior scientists and were used to great scientific researches. The diversified and distinguished cultural heritage of these four regions is referenced and it's a value to the union of the students from these three continents, with the Portuguese language as communication tool. The variety of the geological wealth and cultural of these regions, results in the common objective of their valuing like Geoparks. His creation on these three regions is a strategy with a great relevance to the socio-economic development. With the creation of this game, we promote the union of these 3 countries from these three continents, the universal values of the heritage richness that are offered by our planet.

Cabral, João; Gomes, Ana; Alfama, Vera; Oliveira, Sirlene; Pinharandas, Carlos; Fonseca, Pedro; Campos, José; Nobre, José

2013-04-01

50

VariaÁªo da densidade bÆsica da madeira, volume e matØria seca do tronco de Pinus tecunumanii, procedŒncia de Mount Pine Ridge, Belize, em Planaltina, Distrito Federal, Brasil Variation in wood density, stem volume and dry matter of the Mountain Pine Ridge, Belize, provenance of Pinus tecunumanii grown at Planaltina, Brazil  

Microsoft Academic Search

RESUMO: O volume, a densidade bÆsica e o peso da matØria seca da madeira de 168 Ærvores, de sete famÌlias de polinizaÁªo aberta, procedŒncia de Mountain Pine Ridge (MPR), Belize, de Pinus tecunumanii (Schwd) Equiluz & Perry foram estimados aos 12 anos de idade, em experimento instalado em Planaltina, Distrito Federal, Brasil. A produtividade mØdia da procedŒncia de MPR foi

Vicente P. G. Moura; William S. Dvorak

51

AN?LISE DA INSER??O DOS TEMAS DE HUMANIDADES E ?TICA, COM METODOLOGIA DE APRENDIZAGEM BASEADA EM PROBLEMAS, EM CURRICULO M?DICO INTEGRADO EM ESCOLA P?BLICA NO DISTRITO FEDERAL, BRASIL  

PubMed Central

Objetivo Realizar uma análise da inserção da ética e humanidades no currículo do Curso de Medicina da Escola Superior em Ciências da Saúde - ESCS, escola pública do Distrito Federal, Brasil, de forma a contribuir com o processo de gestão curricular. Metodologia O Estudo é de coorte e documental. Foram pesquisados 37 termos relacionados à ética e 36 referentes à humanização nos objetivos educacionais e conteúdo dos módulos temáticos, habilidades e atitudes e interação ensino-serviço-comunidade, de 1a a 4a série e no programa do internato no currículo (ano 2006) e no projeto pedagógico do Curso de Medicina (2001). Resultados Maior inserção da humanização, ética e bioética na 1a e 2a série, quando comparado à inserção na 3a e 4a série e no internato, (IC95%-?=0,034, pvalue=0,007). Unidade de habilidades e atitudes: freqüência das 3 temáticas no currículo da 1a a 4a séries (IC95%-?=0,026, pvalue=0,013). Quando comparada a inserção entre o internato e as quatro primeiras séries, observa-se que nestas a inserção da temática humanização é superior (IC95%-?=0,042, pvalue=0,029). Conclusão O currículo desenvolvido no ano de 2006 na ESCS apresentou correlação com o projeto pedagógico do curso e contemplou a temática de forma abrangente, em todas as séries e internato.

Novaes, Maria Rita Carvalho Garbi; Novaes, Luiz Carlos Garcez; Guilhem, Dirce; Lolas, Fernando; Silveira, Carla; Guiotti, Murilo

2009-01-01

52

Brazil = Brasil. America = Las Americas [Series].  

ERIC Educational Resources Information Center

|Written for teachers to use with migrant children in elementary grades, this bilingual English/Spanish social studies resource booklet provides an encyclopedia-style overview of Brazil's history, geography, economy, and culture. Topics include Brazil's form of government; geographic regions; holidays; climate; people; music; carnaval celebration;…

Toro, Leonor; And Others

53

Brazil = Brasil. America = Las Americas [Series].  

ERIC Educational Resources Information Center

Written for teachers to use with migrant children in elementary grades, this bilingual English/Spanish social studies resource booklet provides an encyclopedia-style overview of Brazil's history, geography, economy, and culture. Topics include Brazil's form of government; geographic regions; holidays; climate; people; music; carnaval celebration;…

Toro, Leonor; And Others

54

TAXONOMIA ZOOLÓGICA NO BRASIL: ESTADO DA ARTE  

Microsoft Academic Search

Brazil is a megadiverse developing country and the knowledge on the current situation of Brazilian taxonomy is a necessary step to establish future policies to deal with biodiversity. Certainly, the most important issue for the understanding of biodiversity is the installing capacity of taxonomists. In fact, little is known concerning the number of taxonomists, scientific production, and the problems faced

ANTONIO CARLOS MARQUES; CARLOS JOSÉ

55

Case Studies on the Geological Application of LANDSAT Imagery in Brazil.  

National Technical Information Service (NTIS)

The author has identified the following significant results. Sao Domingos Range, Pocos de Caldas, and Araguaia and Tocantins Rivers in Brazil were selected as test sites for LANDSAT imagery. The satellite images were analyzed using conventional photointer...

F. deMendonca A. Correa C. C. Liu

1975-01-01

56

The Scientific program with RIBRAS (Radioactive Ion Beams in Brasil)  

NASA Astrophysics Data System (ADS)

The Radioactive Ion Beams Facility (RIBRAS) is in operation since 2004 at the Pelletron Accelerator Laboratory of the University of Sa~o Paulo and consists of two superconducting solenoids capable of producing low energy secondary beams of light exotic nuclei. Measurements of the elastic scattering, breakup and transfer reactions with radioactive projectiles such as 6He, 8Li, 7Be on several targets have been performed. A review of the research program carried on along the last four years using the RIBRAS facility is presented.

Lichtenthäler, R.; Lépine-Szily, A.; Guimara~Es, V.; de Faria, P. N.; Mendes, D. R.; Otani, Y.; Leistenschneider, E.; Scarduelli, V.

2009-06-01

57

Custos das Mortes por Causas Externas no Brasil  

Microsoft Academic Search

Violence in Brazil is well known to be one of the biggest problems nowadays affecting the society. This problem incurs in several economic costs, in addition to all kinds of immeasurable costs due to life losses. For the economic costs, we can mention, for example, medical treatment costs, police maintenance costs, production costs. In this paper, we focus in the

Alexandre X. Carvalho; Daniel R. C. Cerqueira; Rute I. Rodrigues; Waldir J. A. Lobão

2007-01-01

58

Situation Reports--Bahamas, Brasil, Guatemala, Netherlands Antilles (Curacao), Uruguay.  

ERIC Educational Resources Information Center

Data relating to population and family planning in four foreign countries are presented in these situation reports. Countries included are Bahamas, Guatemala, Netherlands Antilles (Curacao), and Uruguay. Information is provided under two topics, general background and family planning situation, where appropriate and if it is available. General…

International Planned Parenthood Federation, London (England).

59

A FAILED SEA-FLOOR SPREADING CENTRE, SANTOS BASIN, BRASIL  

Microsoft Academic Search

Regional evaluation of the Santos Basin, Brazil, using 2-D seismic and gravity \\/ magnetic data has revealed a linear basement anomaly within the centre of the basin, extending NNE from a large igneous body to the western end of the Santos Fault. This feature coincides with an area of high thermal maturity within potential source rocks and with poor permeability

Iain C. Scotchman; Gil Marais-Gilchrist; Fernando Gomes de Souza; Fabiana Fonseca Chaves; Lois A. Atterton; Alan Roberts

60

Análise comparativa entre os implantes mamários mais usados no Brasil  

Microsoft Academic Search

Objective: Compare the advantages of the using of one of the breast implants most used during the research period, in terms of the most common complications in this procedure. Methodology: The four silicon breast implants most used on the national market were selected in a consecutive and incoming field of 500 women, divided into subgroups of 100, each corresponding to

THIAGO FERNANDO KASTRUP; ABREU MELLO-Acadêmico do; NATHASJA FERNANDA KASTRUP; ABREU MELLO

61

Curriculum Studies in Brasil: A Study of the Teaching Practice.  

ERIC Educational Resources Information Center

|This study analyzes how undergraduate university teachers are thinking in the classroom about the theoretical and practical contents related to the subject called "Curriculum Studies." The study focuses on the aspects of the theory-practice relationship, the idea of curriculum, and the theoretical references used by the undergraduate teachers.…

Marcondes, Maria Ines; Tura, Maria de Lourdes Rangel; de Macedo, Elizabeth Fernandes

62

Situation Reports--Bahamas, Brasil, Guatemala, Netherlands Antilles (Curacao), Uruguay.  

ERIC Educational Resources Information Center

|Data relating to population and family planning in four foreign countries are presented in these situation reports. Countries included are Bahamas, Guatemala, Netherlands Antilles (Curacao), and Uruguay. Information is provided under two topics, general background and family planning situation, where appropriate and if it is available. General…

International Planned Parenthood Federation, London (England).

63

Primeiro registro de Aedes albopictus (Diptera: Culicidae) em Roraima, Brasil  

Microsoft Academic Search

Aedes albopictus is registered for the first time in Roraima, Brazil. From June 2006 to May 2007, three pupae and ten larvae of Ae. albopictus were collected, during routine surveillance work in three urban neighborhoods in the city of Boa Vista. Two larvae reached adulthood as females. Although Ae. albopictus is not presently considered of primary importance in dengue transmission,

Ducineia Barros Aguiar; Almir Fontão; Pedro Rufino; Valdenor Alves Macedo; Cláudia Maria Ríos-Velásquez; Márcia Gonçalves Castro; Nildimar Alves Honório

2008-01-01

64

Plantas medicinais de uso popular em Boa Vista, Roraima, Brasil  

Microsoft Academic Search

Medicinal plants of popular use in Boa Vista, Roraima, Brazil. Boa Vista is located in the North of Amazonia, Brazil. The population of Boa Vista is heterogeneous, composed of Northeastern, Southern and Amazonian people. It has a strong tradition of using plants in popular medicine. This work aims to identify medicinal plants of popular use in Boa Vista, through information

Francisco Joaci F. Luz

2001-01-01

65

The Scientific program with RIBRAS (Radioactive Ion Beams in Brasil)  

SciTech Connect

The Radioactive Ion Beams Facility (RIBRAS) is in operation since 2004 at the Pelletron Accelerator Laboratory of the University of Sao Paulo and consists of two superconducting solenoids capable of producing low energy secondary beams of light exotic nuclei. Measurements of the elastic scattering, breakup and transfer reactions with radioactive projectiles such as {sup 6}He,{sup 8}Li,{sup 7}Be on several targets have been performed. A review of the research program carried on along the last four years using the RIBRAS facility is presented.

Lichtenthaeler, R.; Lepine-Szily, A.; Guimaraes, V.; Faria, P. N. de; Mendes, D. R. Jr.; Pires, K. C. C.; Morcelle, V.; Hussein, M. S.; Barioni, A.; Condori, R. Pampa; Morais, M. C.; Alcantara Nunez, J.; Camargo, O. Jr.; Otani, Y.; Leistenschneider, E.; Scarduelli, V. [Instituto de Fisica da Universidade de Sao Paulo, C.P. 66318, 05389-970 Sao Paulo (Brazil); Benjamim, E. A. [Universidad de Santiago de Compostela, Depto. Fisica Particulas, Facultad Fisica, Campus Sur s/n 15786 Santiago de Compostela (Spain) (Spain); Moro, A. M. [Departamento de FAMN, Universidad de Sevilla, Apdo 1065, E-41080, Sevilla (Spain); Arazi, A. [Laboratorio Tandar, Departamento de Fisica, Comision Nacional de Energia Atomica, Av. del Libertador 8250, (1429), Buenos Aires (Argentina); Assuncao, M. [UNIFESP-Campus de Diadema, SP (Brazil)] (and others)

2009-06-03

66

Freshwater stingrays: study of epidemiologic, clinic and therapeutic aspects based on 84 envenomings in humans and some enzymatic activities of the venom  

Microsoft Academic Search

Freshwater stingrays are very common in the Parana ´, Paraguay, Araguaia, and Tocantins Rivers and tributaries in Brazil. This study presents the clinical aspects of 84 patients injured by freshwater stingrays. Intense pain was the most conspicuous symptom. Skin necrosis was observed in a high percentage of the victims, mostly fishermen and bathers. The initial therapeutic procedures, like immersion of

Vidal Haddad Jr; Domingos Garrone Neto; Joao Batista de Paul; Fernando Portella de Luna

67

Evolution of the lowest amazon basin modeled from the integration of geological and SRTM topographic data  

Microsoft Academic Search

Morphologic features obtained from SRTM data, integrated with geologic information, are emphasized in this paper in order to provide the basis for understanding the development of the lowest Amazon drainage basin, focusing on the history of one of the largest Amazonian tributaries, the Tocantins River, and on the origin of the Marajó Island, throughout the Quaternary. This approach led to

Dilce F. Rossetti; Márcio M. Valeriano

2007-01-01

68

Rivers, refuges and population divergence of fire-eye antbirds (Pyriglena) in the Amazon Basin.  

PubMed

The identification of ecological and evolutionary mechanisms that might account for the elevated biotic diversity in tropical forests is a central theme in evolutionary biology. This issue is especially relevant in the Neotropical region, where biological diversity is the highest in the world, but where few studies have been conducted to test factors causing population differentiation and speciation. We used mtDNA sequence data to examine the genetic structure within white-backed fire-eye (Pyriglena leuconota) populations along the Tocantins River valley in the south-eastern Amazon Basin, and we confront the predictions of the river and the Pleistocene refuge hypotheses with patterns of genetic variation observed in these populations. We also investigated whether these patterns reflect the recently detected shift in the course of the Tocantins River. We sampled a total of 32 individuals east of, and 52 individuals west of, the Tocantins River. Coalescent simulations and phylogeographical and population genetics analytical approaches revealed that mtDNA variation observed for fire-eye populations provides little support for the hypothesis that populations were isolated in glacial forest refuges. Instead, our data strongly support a key prediction of the river hypothesis. Our study shows that the Tocantins River has probably been the historical barrier promoting population divergence in fire-eye antbirds. Our results have important implications for a better understanding of the importance of large Amazonian rivers in vertebrate diversification in the Neotropics. PMID:23442128

Maldonado-Coelho, M; Blake, J G; Silveira, L F; Batalha-Filho, H; Ricklefs, R E

2013-02-26

69

Upper mantle anisotropy in SE and Central Brazil from SKS splitting: Evidence of asthenospheric flow around a cratonic keel  

Microsoft Academic Search

We present results of upper mantle anisotropy derived from measurements of core refracted shear wave splitting (mainly SKS phases) recorded at 48 stations covering the major tectonic provinces in Central and SE Brazil, such as the Tocantins Province (Paraguay–Araguaia and Brasília belts between the Amazon and São Francisco cratons), the Paraná intracratonic basin, the southern part of the São Francisco

Marcelo Assumpção; Maggy Heintz; Alain Vauchez; Marcos Egydio Silva

2006-01-01

70

The copper–gold and gold deposits of the Neoproterozoic Mara Rosa magmatic arc, central Brazil  

Microsoft Academic Search

Mineral exploration in the Neoproterozoic Goiás Magmatic Arc, central Brazil, dates back to the beginning of the 1970s. The Goiás Magmatic Arc extends for more than 1000 km in the western and northern parts of Goiás, into Tocantins, and disappears under the Phanerozoic Parna??ba Basin. Two main areas of Neoproterozoic juvenile crust, the Arenópolis and the Mara Rosa arcs, are

Claudinei G. de Oliveira; Márcio M. Pimentel; Luciana V. de Melo; Reinhardt A. Fuck

2004-01-01

71

Repudiation and redemption: An assessment of the feminine in Central do Brasil  

Microsoft Academic Search

The construction of female identity within Brazilian society has always been closely linked to a highly exoticised image that has its origins in the colonial experience. In Brazilian cinematic production this is an identity construct that has been replayed and reinforced over time. The sensual and very feminine portrayal of women is evident in the earliest stages of national production,

Sarah McDonald

2003-01-01

72

Regras Monetárias e Dinâmica Macroeconômica no Brasil: Uma Abordagem de Expectativas Racionais  

Microsoft Academic Search

Neste artigo estimamos e simulamos um modelo macroeconômico aberto de expectativas racionais (Batini e Haldane (5)) para a economia brasileira, com o objetivo de identificar as características das regras monetárias óti- mas e a dinâmica de curto prazo gerada por elas. Trabalhamos com uma versão forward-looking e uma versão backward-looking a fim de comparar o desempenho de três parametrizações de

Marco Antonio Cesar Bonomo; Ricardo D. Brito

2002-01-01

73

CARACTERIZAÇÃO DA PESCA DE LINHA E DINÂMICA DAS FROTAS LINHEIRAS DA BAHIA, BRASIL  

Microsoft Academic Search

RESUMO: A caracterização da pesca de linha e da distribuição batimétrica e sazonal do esforço de pesca das frotas linheiras estabelecidas no estado da Bahia e em operação na costa central, entre Salvador e o norte do Banco de Abrolhos (13-18ºS), foi estudada com base na amostragem de desembarques monitorados pelo Programa REVIZEE em Salvador, Valença, Ilhéus e Porto Seguro

GEORGE OLAVO; PAULO A. S. COSTA; AGNALDO S. MARTINS

74

[Socioeconomic and geographic constraints to access mammography in Brasil, 2003-2008].  

PubMed

This study examined the effect of population characteristics and geographic location of residences and services on the odds of receiving a mammography in 2003 and 2008. Patterns of mammography use were analyzed using data from the Health Supplements of the National Household Sample Survey for women aged over 25, using prevalence ratios, and for women over 40 using multivariate logistic regression, correcting for complex sample design effects. In 2003, 54.6% of women of 50-69 years of age reported having had a mammography, in 2008, 71.5%. The odds are higher for those 50 to 69 years old, and increase with family income, education, being married, having consulted a doctor and having health insurance. Living in a metropolitan area trebles the chance of mammography. Compared to the Northern region, residents in all other regions have greater odds, greater distances decrease the odds. Coverage increased in the age range targeted by national policy, and inequalities due to income and education on access to mammography were reduced but regional convergence was not marked. Increased access seems to relate more to policies of income distribution and social inclusion, and to the availability of the examination in the Unified Health System, than to an increasing number of mammography units. PMID:21987309

de Oliveira, Evangelina Xavier Gouveia; Pinheiro, Rejane Sobrino; Melo, Enirtes Caetano Praates; Carvalho, Marilia Sá

2011-09-01

75

Abelhas (Hymenoptera: Apoidea) visitantes das flores do feijão guandu no Recôncavo Baiano, Brasil  

Microsoft Academic Search

Pigeonpea, Cajanus cajan L. is a common crop, frequently found throughout Brazil, mainly in small rural properties. This research was aimed at geting information on the diversity of visiting bees to flowers of pigeonpea, generating information on the structure of the bee community and the importance of this Leguminosae as source of food resources. Collections had been made weekly, between

Ruberval Leone Azevedo; I Carlos; Alfredo Lopes de Carvalho

2007-01-01

76

Estudio Comparado de la Tributación del Sector Transporte de Carga en Argentina, Brasil, y Uruguay  

Microsoft Academic Search

En un contexto de creciente integración internacional, caracterizado por la formación de bloques económicos regionales, el sector del transporte de carga cobra cada vez más prominencia. Por ejemplo, el tratamiento tributario conferido al sector por los distintos países participantes de un bloque crea incentivos diferenciados en relación con la ampliación de la integración comercial.

Erika Amorim Araujo

2005-01-01

77

Análise da contaminação dos sistemas hídricos por agrotóxicos numa pequena comunidade rural do Sudeste do Brasil  

Microsoft Academic Search

Recent advances in analytical techniques allow identifying pesticide pollution in water systems. In small rural communities, the negative effects of pesticide pollution can be aggravated by the lack of infrastructure and adverse socioeconom- ic conditions. This study investigated pesticide pollution in potential water supply sources in a tomato growing area in Paty do Alferes, Rio de Janeiro State, Brazil. The

Marcelo Motta Veiga; Dalton Marcondes Silva; Lilian Bechara Elabras Veiga; Mauro Velho de Castro Faria

2006-01-01

78

Incidência de suicídios e uso de agrotóxicos por tra- balhadores rurais em Luz (MG), Brasil  

Microsoft Academic Search

The article presents the incidence of suicides and attended cases of poisoning in the micro-region of Luz, Minas Gerais, and their possible relationship with pesticides. A descriptive study was held involving 50 local residents, who were asked to answer a questionnaire. Acetylcholinesterase, gamma-glutamyl- transferase (GGT), Serum glutamic oxaloacetic transaminase(SGOT), and Serum glutamic pyruvic transaminase(SGPT) were measured, and suicides between the

Tufi Neder Meyer; Ione Lamounier Camargos; Juscélio Clemente de Abreu

79

Controvérsias sobre educação matemática no Brasil: Malba Tahan versus Jacomo Stávale  

Microsoft Academic Search

CONTRO VERSIES ABOUT MATHEMATICS EDUCATION: MALBA TAHAN VERSUS JAC OMO ST ÁVALE. The aim of this paper to analyse, from a historical point of view, the debate between two mathematics teachers in the beginning of the 1930's. At that time the first National Education Law was created (Francisco Campos Reform), including, in all schools of the country a single curriculum.

Wagner Rodrigues Valente

2003-01-01

80

Abordagem etnobotânica de plantas medicinais utilizadas em dermatologia na cidade de João Pessoa-Paraíba, Brasil  

Microsoft Academic Search

RESUMO: As doenças de pele são muito comuns acometendo cerca de 1\\/3 da população mundial e as plantas medicinais, em especial as suas associações, são comumente usadas nas comunidades para o tratamento de micoses, erisipela e outras dermatoses. Todavia, um dos problemas enfrentados pelos profissionais da área de saúde atualmente é justamente a questão do uso concomitante de plantas medicinais

E. O. Lima; R. A. G. Oliveira; M. S. Toledo; João Pessoa

81

Kant no Brasil - fora do lugar? Kant in Brazil - out of place?  

Microsoft Academic Search

This essay tries to detect the presence and relevance of Kant from e practical point of view by asking if Kants ideas were out of place in Brazil. It compares Kants ethics and his categorical imperative with the hybrid ethics in Brazil, personified in the figure of the \\

Günther Augustin

82

[Inquérito epidemiológico com paracoccidioidina e histoplasmina em área agrícola de café em Ibiá, Minas Gerais, Brasil.].  

PubMed

An epidemiological survey in an endemic area for paracoccidioidomycosis in Ibiá town, Minas Gerais state, Brazil was carried out. For this, we used a standard form for each household and intradermal antigens of histoplasmin and paracoccidioidin. Out of 194 individuals, 109(56%) were engaged in the survey showing reactivity of 44% and 49.5% for these antigens respectively. The reactivity to paracoccidioidin was observed in 50% of children below ten years. Individuals who revealed reactivity to paracoccidiodin with prior history of coffee growing activities, and those reporting the grain collection as the main work, showed statistically significant association p = 0.0092, p = 0.0007 and p = 0,01 respectively. These results could suggest that activities related to coffee crops, may favour the transmission of Paracoccidioides brasiliensis, specially among the grain collectors. In addition, the reactivity for histoplasmin antigen, suggest that this region is endemic for both fungi. PMID:18473521

Silva-Vergara, M L; Martínez, R

1998-12-01

83

AVALIAÇÃO ECONÔMICA DE POLÍTICAS PÚBLICAS VISANDO REDUÇÃO DAS EMISSÕES DE GASES DE EFEITO ESTUFA NO BRASIL  

Microsoft Academic Search

In this paper a general equilibrium model of greenh ouse gas emissions in Brazil is developed, and some policies for emissions reductio ns are evaluated. The core model is derived from the MMRF-GREEN model of Australia (Adams, Horridge and Wittwer, 2002). It is a static inter-regional \\

JOAQUIM BENTO DE SOUZA; FERREIRA FILHO; MARCELO THEOTO

84

COMPARAÇÕES MÚLTIPLAS DAS CARTEIRAS DE BOLSA NO BRASIL: AVALIAÇÃO DA PERFORMANCE DO ÍNDICE DE GOVERNANÇA CORPORATIVA  

Microsoft Academic Search

The adoption of higher corporate governance standards increases the return, reduces the volatility of returns while enhancing the volume negotiated and the liquidity, exposure of stock returns to external risks is also reduced which lowers the cost of capital and increases the value of the company. These theories are analyzed for the Brazilian market with a review of literature for

Pablo Rogers; Karém Cristina de Sousa; Almir Ferreira de Sousa

85

International Relocation of Steel Production: U.S.A. and Brasil  

Microsoft Academic Search

There has been a general shift in the location of steel production over the last 15 years away from developed countries towards developing countries. The shift is similar to those documented in other industries like cars and textiles, but the reasons for the shift are different partly because steel is not produced by multinational corporations.\\u000aThis thesis examines part of

Simon P. H. Foot

1986-01-01

86

The Research Program at RIBRAS (Radioactive Ion Beams in Brasil)-III  

NASA Astrophysics Data System (ADS)

A part of the research program developed in the RIBRAS facility over the last four years is presented. Experiments using radioactive secondary beams of light exotic nuclei such as 6He, 7Be, 8Li on several targets have been performed. Elastic angular distributions have been analysed by the Optical Model and four body Continuous Discretized Coupled Channels Calculations (4b-CDCC) and the total reaction cross sections have been obtained. A comparison between the reaction cross sections of 6He and other stable projectiles with medium-heavy targets was performed. Measurements of the proton transfer reaction 12C(8Li,9Be)11B are also presented.

Lichtenthäler, R.; Lépine-Szily, A.; Guimara~Es, V.; de Faria, P. N.; Mendes, D. R.; Pires, K. C. C.; Morcelle, V.; Barioni, A.; Morais, M. C.; Pampa Condori, R.; Assunça~O, M.; Moro, A. M.; Rodríguez-Gallardo, M.; Arazi, A.

2010-04-01

87

Reactions with 8Li at RIBRAS (Radioactive Ion Beams in Brasil): Astrophysical and nuclear structure applications  

NASA Astrophysics Data System (ADS)

We present the results of the 8Li(p, ?) 5He reaction of astrophysical interest, measured at the RIBRAS system. It was realized in inverse kinematics and using a thick CH2 polyethylene target. Using the thick target method the complete excitation function could be measured between Ecm = 0.2-2.5 MeV, which includes the Gamow peak energy region. The contribution of contaminating 12C(8Li,4He) 16N and 12C(7Li, 4He) 15N reactions is still under analysis. However, if the cross section is expected to be somewhat reduced, the subtraction of the contamination will not change the general feature of the excitation function.

Mendes, D. R., Jr.; Lépine-Szily, A.; Descouvemont, P.

2012-02-01

88

TELEVISIÓN COMUNITARIA EN BRASIL: ANTECEDENTES Y PARTICIPACIÓN POPULAR EN LA GESTIÓN Y EN LA PROGRAMACIÓN  

Microsoft Academic Search

The present article is a study of the main historical aspects of the communitarian television in Brazil and of the process of incorporation and management of three first channels implanted in the cable television in the country. The main objectives are rescue the pioneering experiences and understand its specificities like precursors of the communitarian television in the country and to

Cicilia M. KROHLING PERUZZO

89

Comunidade de Carabidae (Coleoptera) em manchas florestais no Pantanal, Mato Grosso do Sul, Brasil  

Microsoft Academic Search

Carabid community (Coleoptera) in forest patches in Pantanal, State of Mato Grosso do Sul, Brazil. This work addresses the effects of the size, flooding susceptibility and vegetation complexity on ground beetles community structure (Coleoptera, Carabidae) in forest patches (capões) in the sub-regions Miranda and Abobral of the Pantanal, State of Mato Grosso do Sul. Thirty pitfall traps were run for

Letícia Vieira; Frederico S. Lopes; Wedson D. Fernandes; Josué Raizer

2008-01-01

90

[Use and access of the elderly to primary health care services in Porto Alegre (RS, Brasil)].  

PubMed

A cross-sectional study was carried out in the second semester of 2004 by means of a household survey with 292 elderly people in a Southern Brazilian city, selected by probabilistic sampling. The objectives were: to describe the use and geographic access of the elderly to primary healthcare (PHC) in Porto Alegre (RS), and to analyze the association between variables of interest to the study and access to PHC. Descriptive and bivariate analysis was used. The primary health care services were used by 49.7% of the respondents, motivated by their location, quality and "free service." The factors negatively associated with the use of PHC services were "level of education" and "perception of good health" and the variable related positively was "self-diagnosed chronic condition". The elderly exposed to frailty related with economic and health conditions were more likely to use PHC, showing signs of equity in the health system. On the other hand, it is necessary to broaden the coverage to the elderly that do not have access, as well as implement healthcare strategies to meet the heterogenous demands of this age group. PMID:21709990

Paskulin, Lisiane Manganelli Girardi; Valer, Daiany Borghetti; Vianna, Lucila Amaral Carneiro

2011-06-01

91

Monitoramento da contaminação por elementos traço em ostras comercializadas em Recife, Pernambuco, Brasil  

Microsoft Academic Search

Samples of oysters marketed in Recife, Pernambuco, Brazil, were monitored for the concentration of trace elements (Hg, Zn, Fe, Cu, and Mn) for one year (from March 2001 to Feb- ruary 2002). Mercury was the principal contaminant found in oysters and the element posing the greatest public health risk. Mercury levels in oysters reached 551.12µg\\/kg (wet weight). These values suggest

André Dias Cavalcanti

2003-01-01

92

Navy of Brazil: An Emerging Power at Sea (Marinha do Brasil: Um Poder Emergente no Mar).  

National Technical Information Service (NTIS)

Captain Ferreira provides a perspective not available from one of our United States Fellows. Many observers foresee an increasingly influential place for Brazil in international affairs. Is the Brazilian Navy prepared to take on an expanded international ...

D. P. C. B. Ferreira

1983-01-01

93

EMBARCAÇÕES, ARTES E PROCEDIMENTOS DA PESCA ARTESANAL NO LITORAL SUL DO ESTADO DO PARANÁ, BRASIL  

Microsoft Academic Search

Boats, gears and procedures of the artisanal fishing at the southern coast of Paraná state, Brazil This work describes boats and gears employed by artisanal fishermen of the Southern Paraná coast, Brazil, and analyses the fishing procedures performed at the shallow continental shelf. Seven types of boats and 7 main types of gears were identified. Differences between the fisherman communities

PAULO DE TARSO CHAVES; MAURÍCIO DE CASTRO ROBERT

94

Ocorrência de Fragmentos de Lama na Praia do Cassino, RS, Brasil  

Microsoft Academic Search

During episodes of storm surges, a mud layer is deposited on an eroded sandy beach profile of the microtidal open ocean beach of Cassino (Rio Grande do Sul, Brazil). Returning to normal hydrodynamic conditions, the mud bed is exposed subaerially, producing desiccation polygons and mud blocks that are gradually eroded and transported by the wave action when angular fragments are

L. R. Martins; I. R. Martins; L. L. Tabajara

95

A INDÚSTRIA DE CALÇADOS DE COURO NO BRASIL: uma descrição a partir do modelo de Porter  

Microsoft Academic Search

This article intends to describe the leather shoes industry using Porter's five force model of competitive strategy (competition, suppliers, buyers, substitute products, barriers to entry). In addition contributed to the understanding of relationships between leather shoes industry and the competitive environment.

Sandro Alves Lima; Carlos Manoel; Fernando Martins; São Carlos

96

RÉGIMEN ÓPTIMO PARA PLANTACIONES DE EUCALIPTOS EN BRASIL: UN ANÁLISIS NO DETERMINISTA  

Microsoft Academic Search

SUMMARY Distinct from other plantations, Eucalyptus plantation man- agers have to decide whether all trees will be replaced by new seedlings after a harvest or simply allowed to regenerate from the sprouting stumps. Defining the length and the number of ro - tations in this type of coppice regime is not a trivial task. In most cases, the optimal sequence

Luiz C. E. Rodríguez; Luis Díaz-Balteiro

2006-01-01

97

CAMBIO CLIMÁTICO Y TURISMO Posibles consecuencias en los destinos turísticos de Bahía - Brasil  

Microsoft Academic Search

Resumen: El calentamiento global está modificando el clima en todos los continentes. Grandes masas de hielo se están derritiendo y están aumentando el nivel medio del mar, amenazando las islas y las zonas costeras. Se están produciendo con frecuencia huracanes y ciclones intensos; las temperaturas mínimas han aumentado, así como las sequías e inundaciones en diversos destinos turísticos. En este

Gustavo da Cruz

98

Programas de desenvolvimento local na região Nordeste do Brasil: uma avaliação preliminar da guerra fiscal  

Microsoft Academic Search

Local development programs in northeast Brazil: a preliminary evaluation of fiscal war- The federal government has played an important role in the development of the Brazilian economy. However, due to the adoption of neoliberal policies - suggested by international organs - in the 1990´s, State intervention in the economy fell substantially, particularly in relation to the planning and application of

Ana Carolina da Cruz Lima; João Policarpo Rodrigues Lima

2010-01-01

99

Ergonomics at Volkswagen Brasil. Multidisciplinary work to equalize health, productivity and quality.  

PubMed

Following the technological developments and presented to the multidisciplinary processes as automakers, Volkswagen Brazil, represented by its ergonomists, through this paper, shows the importance of ergonomic efficiency of management applied to various levels of life of a product, since its creation to its final implementation on production lines.The preventive work of ergonomists during the processes leading to production of a vehicle is accomplished through assessments on a simulated system called the Digital Factory. Since the initial stages to final product delivery there is a need for a multidisciplinary aligning the concepts of ergonomics, productivity and quality of product. Industrial Engineering, Process Engineering, ergonomists and workers are involved in the analysis made through the Workshop's showing the importance of discussion between the various users of the systems. The processes of series are also equipped with a set of certifications flow of job and planned audits on items that describe processes and applied ergonomics. PMID:22317399

Filus, Rodrigo; Wruca, Rodrigo; Charleaux, Vanessa; Ortega, Auro; Ferreira, Claudio; Jesus, Leandro; Stramari, Anderson; Neufel, Michel; Maia, Uyara

2012-01-01

100

PONSETI BRASIL: A NATIONAL PROGRAM TO ERADICATE NEGLECTED CLUBFOOT - PRELIMINARY RESULTS  

PubMed Central

Background After hearing about the reproducible and excellent results of the Ponseti method for clubfoot treatment, a group of Brazilian orthopaedic surgeons organized and participated in a standardized national program to teach the Ponseti technique in 21 different cities across Brazil. Methods A total of 21 Ponseti symposiums were organized in a standard fashion from January, 2007 to December, 2008. They consisted of a two-day program with lectures, hands-on cast application, and discussion of local clinical cases presented by orthopaedic surgeons. Thirteen Brazilian orthopaedic surgeons, who had been trained by the University of Iowa or centers recognized by them, taught the method. Financial support for travel was provided by an English charity: La Vida (Vital Investment for Developing Aid in Latin America). The physicians who attended the symposiums answered questionnaires before and after the training. Results About 7% of the 8000 orthopaedic surgeons in Brazil (556 orthopaedic surgeons) were trained. These orthopaedic surgeons stated that they had treated about 4905 babies in the previous year via other methods, including extensive surgery. Seventeen percent of the surgeons did not know about the Ponseti technique at the start of the symposium. Eighty-eight percent reported they felt able to treat children with the Ponseti technique after the symposium. Ninety-four percent of respondents reported that the symposium changed their way of treating clubfoot Conclusions These Ponseti symposiums brought about an exchange of medical information and empowered the participants. This program is a good educational tool which can be used in eradicating neglected clubfoot in Brazil.

Nogueira, Monica Paschoal; Pereira, Julio Cesar Rodrigues; Duarte, Paulo Schiavom; Lourenco, Alexandre; Tedesco, Ana Paula; Ferreira, Laura Alves; Forlin, Edilson; Volpi, Reinaldo; Violante, Francisco; Brandao, Gilberto; Novaes, Eduardo; Zabeu, Jose Luis Amin; Kim, Jung Ho; Aguiar, Carlos; Merlotti, Maria Henriqueta Renno

2011-01-01

101

Notas Sobre um País em Transe: Mídia e Copa do Mundo no Brasil  

Microsoft Academic Search

This paper presents some issues concerning the relation between football and culture in Brazil, since an ethnographic experience that took place during the World Cup of 1998. I analyse advertising and sports journalism discourses during the World Cup, taking into consideration the media dimension of football. Thus, I think that along with the clear participation of football on Brazilian contemporary

Édison Luis Gastaldo

102

Saúde bucal de idosos institucionalizados, zona leste de São Paulo, Brasil, 1999  

Microsoft Academic Search

The objective was to verify oral health condi- tions in institutionalized elderly people in the city of São Paulo, Brazil, through epidemiologi- cal analysis. The sample consisted of 293 sub- jects and was stratified according to age (65-74 years and over 75) and gender. Epidemiological analysis was conducted according to WHO cri- teria to determine prevalence of oral disease. Chi-square

Débora Dias da Silva; Maria da Luz; Rosário de Sous

103

Queda dos homic?dios em S?o Paulo, Brasil: uma an?lise descritiva  

PubMed Central

Objetivo Descrever a evolução da mortalidade por homicídios no Município de São Paulo segundo tipo de arma, sexo, raça ou cor, idade e áreas de exclusão/inclusão social entre 1996 e 2008. Métodos Estudo ecológico de série temporal. Os dados sobre óbitos ocorridos no Município foram coletados da base de dados do Programa de Aprimoramento das Informações sobre Mortalidade, seguindo a Classificação Internacional de Doenças, Décima Revisão (CID-10). Foram calculadas as taxas de mortalidade por homicídio (TMH) para a população total, por sexo, raça ou cor, faixa etária, tipo de arma e área de exclusão/inclusão social. As TMH foram padronizadas por idade pelo método direto. Foram calculados os percentuais de variação no período estudado. Para as áreas de exclusão/inclusão social foram calculados os riscos relativos de morte por homicídio. Resultados As TMH apresentaram queda de 73,7% entre 2001 e 2008. Foi observada redução da TMH em todos os grupos analisados, mais pronunciada em homens (?74,5%), jovens de 15 a 24 anos (?78,0%) e moradores de áreas de exclusão social extrema (?79,3%). A redução ocorreu, sobretudo, nos homicídios cometidos com armas de fogo (?74,1%). O risco relativo de morte por homicídio nas áreas de exclusão extrema (tendo como referência áreas com algum grau de exclusão social) foi de 2,77 em 1996, 3,9 em 2001 e 2,13 em 2008. Nas áreas de alta exclusão social, o risco relativo foi de 2,07 em 1996 e 1,96 em 2008. Conclusões Para compreender a redução dos homicídios no Município, é importante considerar macrodeterminantes que atingem todo o Município e todos os subgrupos populacionais e microdeterminantes que atuam localmente, influenciando de forma diferenciada os homicídios com armas de fogo e os homicídios na população jovem, no sexo masculino e em residentes em áreas de alta exclusão social.

Peres, Maria Fernanda Tourinho; Vicentin, Diego; Nery, Marcelo Batista; de Lima, Renato Sergio; de Souza, Edinilsa Ramos; Cerda, Magdalena; Cardia, Nancy; Adorno, e Sergio

2012-01-01

104

PREDACAo DE NINHOS ARTIFICIAIS EM FRAGMENTOS DE MATAS DO BRASIL CENTRAL  

Microsoft Academic Search

Habitat fragmentation has some negative consequences to bird populations, including high nest predation rates due to the access of predators to the interior of small fragments. Qur purpose was to test the hypothesis that nest predation rates is inversely related to forest fragment size in forests at 'Tri~ngulo Mineiro', Minas Gerais state, Brazil. We conducted two experiments with artificial nests,

Celine Melo; Miguel Angelo Marini

105

Bancroftian filariasis in two urban areas of Recife, Brasil: the role of individual risk factors.  

PubMed

Bancroftian filariasis is spreading in towns of endemic areas in Recife, northeastern Brazil, where it is a major public health problem. This paper deals with the prevalence of microfilaraemia and filarial disease in two urban areas of Recife, studying their association with individual characteristics and variables related to the exposure to the vectors. The parasitologic survey was performed through a "door-to-door" census and microfilaraemia was examined by the thick-drop technique using 45 microliters of peripheral blood collected between 20:00 and 24:00 o'clock. 2,863 individuals aged between 5 and 65 years were interviewed and submitted to clinical examination. Males aged between 15 and 44 years old presented the greatest risk of being microfilaraemic. Microfilaraemia was also significantly associated with no use of bednet to sleep. The risk of being microfilaraemic was greater among those who had lived in the studied areas for more than 5 years. The overall disease prevalence was 6.3%. Males presented the greatest risk of developing acute disease. The risk of developing chronic manifestations was also greater among males and increased with age. We found no association between time of residence, bednet use, microfilaraemia and acute and chronic disease. We may conclude that in endemic areas there are subgroups of individuals who has a higher risk of being microfilariae carriers due to different behaviours in relation to vector contact. PMID:8525268

de Albuquerque, M de F; Marzochi, M C; Ximenes, R A; Braga, M C; Silva, M C; Furtado, A F

106

Evolución desigual de las causas de muerte en las regiones de Brasil  

Microsoft Academic Search

ObjectiveTo determine changing patterns in the main causes of mortality Brazilian regions between 1980 and 2000 taking into consideration the inequalities among territories and epidemiological transition.

Wilson Sabino; Enrique Regidor; Ángel Otero

2007-01-01

107

Estudo epidemiológico das dermatofitoses em instituições públicas da cidade de Barretos, São Paulo, Brasil  

Microsoft Academic Search

1 RESUMO - As dermatofitoses são infecções superficiais capazes de produzir lesões em tecidos queratinizados, como pele, pêlo, e unhas. Foram examinados 536 indivíduos procedentes de Barretos, com suspeita clínica de infecções fúngicas, no período de Novem- bro de 2002 a Outubro de 2003, verificando-se a incidência e a etiologia das dermatofitoses. Material coletado de várias regiões cor- póreas foram

Cátia Rezende; Graziela Porsani Borsari; Fernanda Regina Cavalcanti

108

Abertura Financeira e Vulnerabilidade Externa na América Latina: os impactos sobre Brasil, México e Argentina  

Microsoft Academic Search

Resumo: Este trabalho, na primeira seção, define o que costuma ser entendido como um processo de abertura financeira, identifica os níveis que compõem este processo, e lista as principais justificativas teóricas costumeiramente apresentadas para a implementação deste tipo de política. Na segunda seção, discute-se teoricamente o impacto dos processos de liberalização financeira na autonomia de política econômica e no grau

Juan Pablo Painceira; Marcelo Dias Carcanholo

109

Etiologia e estratégias de controle de viroses do mamoeiro no brasil  

Microsoft Academic Search

Etiology and control strategies of papaya virus diseases in Brazil The major disease problems affecting papaya (Carica papaya) throughout the world are caused by viruses. These diseases cause serious reductions in fruit production, even totally destroying affected orchards. Although more than ten different viruses have been registered in papaya world- wide, only three have been identified to date that naturally

ROBERTO C. A. LIMA; J. ALBERSIO A. LIMA; MANOEL T. SOUZA JR.; GILVAN PIO-RIBEIRO; GENIRA P. ANDRADE

2001-01-01

110

Consideracoes Historicas sobre o Ensino Profissionalizante no Brasil (Historical Considerations about Professional Education in Brazil).  

ERIC Educational Resources Information Center

|Analyzes the paths taken in professional education in Brazil from the colonial period until the formation of the republic. Refers to specialists as well as specific laws for each period described in the study. (BT)|

Barros, Marta Silene Ferreira

2000-01-01

111

Situation Reports--Brasil, Cambodia, Fiji, Malaysia (West), Thailand, and Uganda.  

ERIC Educational Resources Information Center

|Data relating to population and family planning in six foreign countries are presented in these situation reports. Countries included are Brazil, Cambodia, Fiji, Malaysia (West), Thailand, and Uganda. Information is provided, where appropriate and available, under two topics, general background and family planning situation. General background…

International Planned Parenthood Federation, London (England).

112

HAMMONDIA HEYDORNI, NEOSPORA CANINUM E TOXOPLASMA GONDII EM CAPRINOS ABATIDOS NO ESTADO DA BAHIA, BRASIL  

Microsoft Academic Search

Resumo Hammondia heydorni, Neospora caninum e Toxoplasma gondii são protozoários coccídios que parasitam diferentes espécies animais domésticas e silvestres. E nquanto a infecção por H. heydorni parece ser assintomática, N. caninum e T. gondii podem provocar alterações reprodutivas em ruminantes. N. caninum é um importante causador de abortamentos em bovinos, ao passo que T. gondii induz a abortamentos em caprinos

R. S. UZÊDA; K. ABE-SANDES; L. F. P. GONDIM

113

COMPORTAMENTO REPRODUTIVO DA ARARA-AZUL (Anodorhynchus hyacinthinus) NO PANTANAL, BRASIL  

Microsoft Academic Search

Residente, monogâmica e altamente conspícua a arara-azul Anodorhynchus hyacinthinus é uma ave que pode servir de modelo para estudos de comportamento. De julho a dezembro de 1999, foram realizadas observações de comportamento reprodutivo da arara-azul no Pantanal de Miranda. Os estudos foram conduzidos no Refúgio Ecológico Caiman, onde desde 1998, esta situada a base do Projeto. O objetivo deste trabalho

Vanessa M. Bernardo; Marcos R. F. Cardoso; Carolina R. Pereira; Neiva M. R. Guedes

114

Leishmaniose visceral em um canino de Cruz Alta, Rio Grande do Sul, Brasil  

Microsoft Academic Search

A case of visceral leishmaniasis in a five-year-old, intact male Akita presented to the Veterinary Hospital at the University of Cruz Alta, RS, Brazil after having lived in the state of Alagoas for three years is described. Clinical signs included progressive weight loss, crusty lesions on the tip of the ears, nose and periorbital region, an ulcer at the distal

Cristina Krauspenhar; Cristiane Beck; Vitor Sperotto; Aline Alves da Silva; Rodrigo Bastos; Lauro Rodrigues

2007-01-01

115

Fenologia de espécies arbóreas em floresta de planície litorânea do sudeste do Brasil1  

Microsoft Academic Search

Phenology of coastal-plain forest tree species from Southeastern Brazil). The present study aims to characterize the reproductive and leafing phenology of tree species of a coastal-plain forest from Southeastern Brazil and to relate the observed patterns with the local biotic and abiotic factors. The study was carried out in the Parque Estadual da Serra do Mar, Núcleo Picinguaba, Ubatuba, São

DANIELA CUSTÓDIO TALORA; PATRÍCIA C. MORELLATO

2000-01-01

116

Fenologia de espécies arbóreas zoocóricas em uma floresta psamófila no sul do Brasil  

Microsoft Academic Search

Palavras-chave: Brotação, fotoperíodo, queda foliar, restinga, sazonalidade ABSTRACT - (Phenology of zoochorous tree species in a sandy coastal forest in Southern Brazil). Biological phenomena are subject to abiotic factors that change according to geographical position, especially those related to environmental seasonality. This study provides a two-year assessment of vegetative and reproductive phenophases for nine species in a coastal forest on

Maria Salete Marchioretto; Julian Mauhs; Jean Carlos Budke

2007-01-01

117

FECUNDIDADE EM Callinectes danae SMITH (DECAPODA, PORTUNIDAE) DA LAGOA DA CONCEIÇÃO, FLORIANÓPOLIS, SANTA CATARINA, BRASIL  

Microsoft Academic Search

FECUNDITY OF Callinectes danae SMITH (DECAPODA, PORTUNIDAE) IN LAGOA DA CONCEIÇÃO, SANTA CATARINA, BRAZIL. The estimate for the average fecundity for the C. dance population of Lagoa da Conceição (Florianópolis, Santa Catarina) was of 598.885 eggs by female. The average number of eggs and the weight of the mass of eggs, in general, increase with the female size. The variation

Joaquim Olinto Branco; Marcelo Gentil Avilar

118

A?ˆO AFIRMATIVA E O COMBATE AO RACISMO INSTITUCIONAL NO BRASIL  

Microsoft Academic Search

AFFIRMATIVE ACTION AND THE FIGHT AGAINST INSTITUTIONAL RACISM IN BRAZIL. This article analyzes the debate on affirmative action in Brazil in the light of the bibliography about racism and the legal basis for equal opportunities. From this perspective, it challenges the critical visions to the implementation of reparatory policies, gathering evidence on the stateís participation in the legitimation of racial

VALTER ROBERTO SILV

119

Microcystins (cyanobacteria hepatotoxins) bioaccumulation in fish and crustaceans from Sepetiba Bay (Brasil, RJ)  

Microsoft Academic Search

Blooms of cyanobacteria in water bodies cause serious environmental problems and the occurrence of toxic strains are also related with the human health. Aquatic animals could bioaccumulate microcystins (cyanobacteria hepatotoxins) and so, beyond water, the ingestion of contaminated food represents a human health risk. Recently, WHO recommended a maximum concentration of microcystins (MCYSTs) in drinking water and established the tolerable

V. F. Magalhaes; M. M. Marinho; P. Domingos; A. C. Oliveira; S. M. Costa; L. O. Azevedo; S. M. F. O. Azevedo

2003-01-01

120

The Research Program at RIBRAS (Radioactive Ion Beams in Brasil)-III  

SciTech Connect

A part of the research program developed in the RIBRAS facility over the last four years is presented. Experiments using radioactive secondary beams of light exotic nuclei such as {sup 6}He, {sup 7}Be, {sup 8}Li on several targets have been performed. Elastic angular distributions have been analysed by the Optical Model and four body Continuous Discretized Coupled Channels Calculations (4b-CDCC) and the total reaction cross sections have been obtained. A comparison between the reaction cross sections of {sup 6}He and other stable projectiles with medium-heavy targets was performed. Measurements of the proton transfer reaction {sup 12}C({sup 8}Li,{sup 9}Be){sup 11}B are also presented.

Lichtenthaeler, R.; Lepine-Szily, A.; Guimaraes, V.; Faria, P. N. de; Mendes, D. R. Jr; Pires, K. C. C.; Morcelle, V.; Barioni, A.; Morais, M. C.; Pampa Condori, R. [Instituto de Fisica da USP, Sao Paulo, Brazil, C.P. 66318, 05314-970 (Brazil); Assuncao, M. [Departamento de Ciencias Exatas e da Terra, Unifesp, Campus de Diadema, Sao Paulo (Brazil); Moro, A. M. [Departamento de FAMN, Universidad de Sevilla, Apdo. 1065, E-41080, Sevilla (Spain); Rodriguez-Gallardo, M. [Departamento de FAMN, Universidad de Sevilla, Apdo. 1065, E-41080, Sevilla (Spain); Instituto de Estructura de la Materia, CSIC, Serrano 123, E-28006 Madrid (Spain); Arazi, A. [Laboratorio TANDAR, Comision Nacional de Energia Atomica (Argentina)

2010-04-30

121

[The nursing administration scientific publications in Brasil since 1947 until 1972].  

PubMed

The Nursing Administration was added to the Nursing Undergraduation Curriculum when the evidence of this need came clear to the brazilian nurses. The main objective of the present investigation is to describe the history pathway of scientific productions about Nursing Administration to evidence the special points of this history, intended to contribute to the understanding of the sequence of their productions and the utilization of this concepts in the administration nursing practice. The study referred from 1947 to 1972, by the searching in the electronic nursing scientific publications data base named--PERIENF. The results were 19 indications submitted to a thematic analysis treatment. This procedure reveals that since the forties the nurses were conscious of the difficulties they had experimented in their administration performance, growing up to the inclusion of this theme in the undergraduate courses and demonstrating its organization until the definition of the "Curriculo Mínimo do Curso de Enfermagem e Obstetricia" in 1972, granting a special place of this discipline. PMID:16334196

Martins, Elaine Guimarães; Sanna, Maria Cristina

122

Lignin phenols used to infer organic matter sources to Sepetiba Bay - RJ, Brasil  

NASA Astrophysics Data System (ADS)

Lignin phenols were measured in the sediments of Sepitiba Bay, Rio de Janeiro, Brazil and in bedload sediments and suspended sediments of the four major fluvial inputs to the bay; São Francisco and Guandu Channels and the Guarda and Cação Rivers. Fluvial suspended lignin yields (?8 3.5-14.6 mgC 10 g dw -1) vary little between the wet and dry seasons and are poorly correlated with fluvial chlorophyll concentrations (0.8-50.2 ?gC L -1). Despite current land use practices that favor grassland agriculture or industrial uses, fluvial lignin compositions are dominated by a degraded leaf-sourced material. The exception is the Guarda River, which has a slight influence from grasses. The Lignin Phenol Vegetation Index, coupled with acid/aldehyde and 3.5 Db/V ratios, indicate that degraded leaf-derived phenols are also the primary preserved lignin component in the bay. The presence of fringe Typha sp. and Spartina sp. grass beds surrounding portions of the Bay are not reflected in the lignin signature. Instead, lignin entering the bay appears to reflect the erosion of soils containing a degraded signature from the former Atlantic rain forest that once dominated the watershed, instead of containing a significant signature derived from current agricultural uses. A three-component mixing model using the LPVI, atomic N:C ratios, and stable carbon isotopes (which range between -26.8 and -21.8‰) supports the hypothesis that fluvial inputs to the bay are dominated by planktonic matter (78% of the input), with lignin dominated by leaf (14% of the input) over grass (6%). Sediments are composed of a roughly 50-50 mixture of autochthonous material and terrigenous material, with lignin being primarily sourced from leaf.

Rezende, C. E.; Pfeiffer, W. C.; Martinelli, L. A.; Tsamakis, E.; Hedges, J. I.; Keil, R. G.

2010-04-01

123

Genetic characterization of native and introduced populations of the neotropical cichlid genus Cichla in Brazil  

PubMed Central

A molecular phylogenetic analysis based on mitochondrial 16S ribosomal DNA and Control Region sequences from native and introduced populations was undertaken, in order to characterize the introduction of Cichla (peacock bass or tucunaré) species in Brazil. Mitochondrial DNA haplotypes found in introduced fish from Minas Gerais state (southeastern Brazil) clustered only with those from native species of the Tocantins River (Cichla piquiti and C. kelberi), thereby suggesting a single or, at most, few translocation acts in this area, even though with fish from the same source-population. Our study contributes to an understanding of the introduction of Cichla in regions of Brazil outside the Amazon basin, and adds phylogenetic data to the recently describe Cichla species, endemic from the Tocantins-Araguaia basin.

2009-01-01

124

Genetic characterization of native and introduced populations of the neotropical cichlid genus Cichla in Brazil.  

PubMed

A molecular phylogenetic analysis based on mitochondrial 16S ribosomal DNA and Control Region sequences from native and introduced populations was undertaken, in order to characterize the introduction of Cichla (peacock bass or tucunaré) species in Brazil. Mitochondrial DNA haplotypes found in introduced fish from Minas Gerais state (southeastern Brazil) clustered only with those from native species of the Tocantins River (Cichla piquiti and C. kelberi), thereby suggesting a single or, at most, few translocation acts in this area, even though with fish from the same source-population. Our study contributes to an understanding of the introduction of Cichla in regions of Brazil outside the Amazon basin, and adds phylogenetic data to the recently describe Cichla species, endemic from the Tocantins-Araguaia basin. PMID:21637525

de Carvalho, Daniel Cardoso; de Oliveira, Denise Aparecida Andrade; Dos Santos, José Enemir; Teske, Peter; Beheregaray, Luciano B; Schneider, Horacio; Sampaio, Iracilda

2009-09-01

125

The Caldas Novas dome, central Brazil: structural evolution and implications for the evolution of the Neoproterozoic Bras??lia belt  

Microsoft Academic Search

The Caldas Novas dome (Goiaás state, central Brazil) lies in the southern segment of the Neoproterozoic Bras??lia belt (center of the Tocantins Province) between the Goiás magmatic arc and the margin of the ancient São Francisco plate. The core of the dome comprises rocks of the Meso-Neoproterozoic Paranoá group (passive margin psamitic-pelitic sediments and subgreenschist facies) covered by a nappe

Luiz José Homem D'el-Rey Silva; Percy Boris Wolf Klein; Detlef Hans-Gert Walde

2004-01-01

126

Revision of the South American freshwater fish genus Laemolyta Cope, 1872 (Ostariophysi: Characiformes: Anostomidae)  

Microsoft Academic Search

The anostomid genus Laemolyta Cope, 1872, is redefined.Various morphological, especially osteological characters in addi- tion to the commonly utilized features of dentition proved useful for its characterization. A taxonomic revision of all species was made using meristics, morphometrics and color pattern. Five species are recognized: Laemolyta fernandezi Myers, 1950, from the río Orinoco (Venezuela) and the sub-basins Tocantins\\/Araguaia and Xingu,

Kelly Cristina Mautari; Naércio Aquino Menezes

2006-01-01

127

Design aspects of the underground structures of the Serra da Mesa Hydroelectric Power Plant  

Microsoft Academic Search

The Serra da Mesa Hydroelectric Power Plant, located in the Tocantins river, 210 km north of Brasilia, Brazil, is under construction and power generation will start in 1998. The installed power capacity is 1,200 MW. This project includes one of the largest underground power plants in Brazil, totaling 550,000 m3 of underground excavations for the hydraulic circuit. The underground hydraulic

J. A. Mello Franco; A. P. Assis; W. J. Mansur; J. C. F. Telles; J. A. F. Santiago

1997-01-01

128

A STUDY OF THE BONE MARROW FROM THIRTY-SIX PATIENTS WITH IDIOPATHIC HEMORRHAGIC (THROMBOPENIC) PURPURA  

Microsoft Academic Search

I N RECENT summary articles by Nickerson and Sunderland,' Rosenthal,2 Tocantins,3 Wiseman, Doan and Wilson,4 Limarzi and Schleicher,5 and Dame- shek and Miller,6 the extensive literature dealing with idiopathic hemorrhagic purpura is reviewed, and the known facts relating to the megakaryocytes and to the bone marrow are presented. The majority of observations have been made on autopsy material, and there

V. DIGG; S. HEWLETT

129

Programa ACHEI: Atenção ao Chagásico com Educação Integral no Município de Maringá e Região Noroeste do Paraná, Brasil The ACHEI Program: Chagas' Disease Awareness through Comprehensive Education in the Municipality of Maringá, Northwest Paraná, Brasil  

Microsoft Academic Search

This study analyzes 131 chagasic patients from different endemic areas that came to the Chagas' disease laboratory at the Maringa State University. The subjects discovered they were infected principally because they presented symptoms (58%) or donated blood (29.4%). During etiologic treatment for Trypanosoma cruzi, 45.2% of benznidazole users complained of side effects. Based on these data, the ACHEI p rogram

Silvana Marques de Araújo; Míriam Hitomi Andó; Dirceu José Cassarotti; Silvana Maria Ribeiro Borges; Mônica Lúcia Gomes

2000-01-01

130

Avaliação da utilização de dentifrícios fluoretados em pré-escolares na cidade de João Pessoa - Paraíba - Brasil Evaluation of the use of fluoride dentrifice by preeschool in João Pessoa - Paraíba - Brasil  

Microsoft Academic Search

Key-words Este estudo objetivou avaliar a utilização de dentifrícios fluoretados por crianças de 2 a 5 anos de idade, em creches e escolas na cidade de João Pessoa-PB. Os dados foram obtidos através de um questionário dirigido aos pais\\/responsáveis pelas crianças que utilizam dentifrícios fluoretados. A amostra constou de 296 questionários, sendo aplicado em 168 crianças de instituições públicas e

Sabrina Sales; Lins de Albuquerque; Maria Germana Galvão; Correia Lima; Fábio Correia

131

Arquitetura e desempenho luminoso: CENPES II, o novo centro de pesquisas da Petrobras, no Rio de Janeiro, Brasil  

Microsoft Academic Search

Tel.: (11) 3091-4681 E-mail: annamiana@uol.com.br This paper presents the results of the performance evaluation in terms of daylighting of the Petrobras New Research Centre (CENPES II) building design in the tropical climate of Rio Janeiro, Brazil, under a typical partially cloudy and bright sky. The architectural design encompasses an área over 100,000 m2, distributed among ten new buildings. According to

Norberto Corrêa; Silva Moura; Anna Christina Mian; Denise Helena Silva Duarte; Norberto Corrêa da Silva

132

Registros documentados de cinco novos trinta-réis (Charadriiformes: Sternidae) no estado do Ceará, nordeste do Brasil  

Microsoft Academic Search

Documented records of five terns (Charadriiformes: Sternidae) new for the State of Ceará, north-east Brazil. We present new records, based on museum specimens and\\/or photographs, of five species of Sternidade for the State of Ceará in north- east Brazil, namely, Black Noddy Anous minutus (apparently the first from Brazilian mainland), Least Tern Sternula antillarum, Black Tern Chlidonias niger, Arctic Tern

Weber Girão; Ciro Albano; Alberto A. Campos; Thieres Pinto; Caio J. Carlos

133

Estrutura e dinâmica de uma população de Calophyllum brasiliense Camb. em floresta higrófila do sudeste do Brasil  

Microsoft Academic Search

Population structure and dynamics of Calophyllum brasiliense Camb. in a swamp forest in Southeastern Brazil). Age and spatial structures of a population of Calophyllum brasiliense (Clusiaceae) were studied in a 3600 m2 area of a swamp forest in Brotas, São Paulo State. During the first census, 1658 plants were tagged and after one year this number increased to 1706. Age

MÁRCIA C. M. MARQUES; CARLOS ALFREDO JOLY

2000-01-01

134

Estrutura e dinâmica do componente arbóreo em área de cabruca na região cacaueira do sul da Bahia, Brasil  

Microsoft Academic Search

. A maioria das árvores pertenceu a espécies de florestas maduras, mas os novos indivíduos recrutados foram quase todos de espécies pioneiras. A estimativa de riqueza total (Chao) foi de 110 espécies, com redução de 20 espécies durante o período. Os resultados confirmaram as indicações de que as cabrucas representam um importante banco de espécies arbóreas nativas, mas estão sendo

Regina Helena Rosa Sambuichi; Rosa Sambuichi

2006-01-01

135

Título: Dinâmica espacial da renda per capita e crescimento entre os Municípios da região Nordeste do Brasil – uma analise markoviana  

Microsoft Academic Search

Abstract: This paper presents new insights on the debate aboutincome,convergence,between,cities in Northeast Brazil. In the first part, economic growth models are investigated. New-classical models indicate the possibility of poverty ,trap – consumption ,below the ,poverty ,line and ,negative growth ,– and polarisation. In contrast, endogenous growth models, which employ the technology and the human capital as endogenous variables, suggest the

Eduardo Pontual Ribeiro

136

Agrotóxicos e seus efeitos sócio-culturais: Zona Rural doValão de São Lourenço, Santa Teresa, ES, Brasil  

Microsoft Academic Search

Resumo Neste trabalho, foram investigados fatores sócio- culturais dos trabalhadores rurais da região do Valão de São Lourenço que provavelmente poderiam influenciar na incidência de doenças relacionadas ao uso inadequado de agrotóxicos. A amostra populacional foi de 10 famílias, nas quais 25 indivíduos foram entrevistados e aos quais foram aplicados questionários individuais. Entre os homens maiores de 25 anos, apenas

Lorena CC Fehlberg; Leonardo V Lutz; Adriana H Moreira

137

Traços de auto-organização: um estudo de caso na indústria de calçados em Fortaleza - Ceará - Brasil  

Microsoft Academic Search

This research intends to identify the features of auto-organization through the study of a case in the shoe industry in the city of Fortaleza - Brazil. Graphics and diagrams were elaborated as a casual link, to identify circular connections, to imply as a feature of auto-organization in the process of: 1) physic flow of raw material and finished products; 2)

Alexandre Gomes Galindo; Alexandre Araujo; Cavalcante Soares; Fabrício Augusto; Freitas Melo; Carlos Artur Sobreira Rocha

138

OCORRÊNCIA DE TARPON ATLANTICUS (VALENCIENNES, 1846) (PISCES: MEGALOPIDAE) NA BAÍA DE TODOS OS SANTOS (ESTADO DA BAHIA,BRASIL)  

Microsoft Academic Search

The presence of Tarpon atlanticus (Valenciennes, 1846) is recorded for the first time inside the Todos os Santos Bay (State of Bahia, Brazil). Five specimens were analized, measuring between 210,95 and 226,00mm in total length, collected near the mouth of Dorneles River (Araripe de Baixo Beach), Saubara Municipality (13ºS - 39ºW). Morphometric and meristic data, as well as a diagnosis,

Paulo Roberto Duarte Lopes; Marconi Porto Sena

139

FORMAÇÃO DE PREÇOS NO SETOR SUCROALCOOLEIRO DA REGIÃO CENTRO-SUL DO BRASIL: RELAÇÃO COM O MERCADO DE COMBUSTÍVEL FÓSSIL  

Microsoft Academic Search

The objective of this study is the construction and estimation of an analytical model which is able to explain the behavior of prices of products from the sugar and alcohol industries, taking into account the recent interrelationship observed between these sectors and the fossil fuel products when the hydrated alcohol has been considered a substitute for the C-gasoline. The methodology

Mirian Rumenos Piedade Bacchi

2005-01-01

140

Adesão às precauções padrão pela equipe do atendimento pré-hospitalar móvel de Belo Horizonte, Minas Gerais, Brasil  

Microsoft Academic Search

This was a cross-sectional study of workers in the pre-hospital care team in Belo Horizonte, Minas Gerais State, Brazil, aimed at evaluating adherence to precautions. The study instrument included questions on knowledge, attitudes, and facilitating factors for adherence to standard precautions. Adherence was verified by percentage of adequacy: > 75 percent correct answers. Drivers showed the lowest degree of knowledge

Aline Cristine; Adriana Cristina Oliveira; Jussara Teixeira Silva; Maria Henriqueta Rocha

2008-01-01

141

Mamíferos carnívoros e sua relação com a diversidade de hábitats no Parque Nacional dos Aparados da Serra, sul do Brasil  

Microsoft Academic Search

Carnivore mammals and their relation with habitat diversity in Aparados da Serra National Park, southern Brazil. A survey of carnivore mammals was accomplished in Aparados da Serra National Park from February 1998 to March 2000. The park has 10,250 ha and is considered a biodiversity core area of the Atlantic Forest Biosphere Reserve in the Rio Grande do Sul State,

Maria de Fátima M. dos Santos; Mateus Pellanda; Ana Cristina Tomazzoni; Heinrich Hasenack; Sandra Maria Hartz

2004-01-01

142

ANÁLISE ECONOMÉTRICA DO CONSUMO DE AÇAÍ NO EVIEWS 3.1 NA REGIÃO METROPOLITANA DE BELÉM – PARÁ – BRASIL  

Microsoft Academic Search

O estudo descrito neste trabalho pretende realizar uma análise econométrica a cerca do consumo de açaí, fruto regional de alto consumo pelos Paraenses, realizada na região metropolitana de Belém no Eviews 3.1 utilizando a relação do consumo com algumas variáveis definidas para a pesquisa (preço da farinha de tapioca, da farinha, das despesas familiares com alimentação e quantidade de pessoas

Carlos Gilberto Vieira da Silva Júnior; Edivaldo Lima Sousa Filho; Rafaela Casseb e Silva; Heriberto Wagner Amanajás Pena

2012-01-01

143

Perfil das creches de uma cidade de porte médio do sul do Brasil: operação, cuidados, estrutura física e segurança  

Microsoft Academic Search

Ninety-two daycare centers (23 public, 10 charitable, and 59 private) were identified in the municipality of Pelotas, Rio Grande do Sul, Southern Brazil. These centers were studied in relation to their organization, services, child-care practices, and infrastructure. All public cen- ters worked full-time, while most private centers operated in the afternoon and received a small- er proportion of children under

Aluísio J. D. Barros; Evandro V. Gonçalves; Cátia R. S. de Borba; Cláudia S. Lorenzatto; Débora B. Motta; Vera Regina L. da Silva; Viviane M. Schiroky

1999-01-01

144

Detecção de aglomerados espaciais de óbitos por causas violentas em Porto Alegre, Rio Grande do Sul, Brasil, 1996  

Microsoft Academic Search

Violence is of major importance in the health profile of Brazilian metropolitan areas and should be treated as a public health problem. Spatial analysis methods can be highly useful for the surveillance and prevention of violence. This paper analyzes the spatial distribution of victims' place of residence in relation to the main causes of violent death in Porto Alegre (1996)

Simone M. Santos; Christovam Barcellos; Marilia Sá Carvalho; Rui Flôres

2001-01-01

145

The Effect of an Organic Pesticide on Mortality and Learning in Africanized Honey Bees (Apis mellifera L.) in Brasil  

Microsoft Academic Search

Seven experiments were conducted. First, the influence of the consumption of different concentrations of the organic pesticide Bioganic ® on mortality was assessed at 11 different time intervals in Africanized honey bees (Apis mellifera L.) as was direct application of the pesticide to the abdomen. Results indicated that the pesticide was not lethal to bees regardless of concentration at any

Charles I. Abramson; Jordan B. Singleton; Maritza K. Wilson; Paulo A. Wanderley

2006-01-01

146

AVALIAÇÃO DE PROCEDÊNCIAS E PROGÊNIES DE LIQUIDAMBAR DA AMÉRICA CENTRAL, DO MÉXICO E DOS ESTADOS UNIDOS, EM AGUDOS, BRASIL  

Microsoft Academic Search

Foi instalado um teste de procedência e progênie de Liquidambar styraciflua L. em Agudos, SP, em solo de areia quartzosa. Os materiais genéticos foram fornecidos pelo Oxford Forestry Institute, incluindo doze procedências da Guatemala, Honduras, Nicarágua, México e dos Estados Unidos, sendo testados juntamente com uma testemunha local, com duas a dez progênies por procedência. Medições efetuadas dos quatro até

Jarbas Y. Shimizu; Ivana H. Z. Spir

147

Os Fitólitos em Gramíneas de Dunas do Extremo Sul do Brasil: Variabilidade Morfológica e Importância nas Reconstruções Paleoambientais Costeiras  

Microsoft Academic Search

The phytoliths, produced by monocotiledonous plants and preserved in the Quaternary sediments in the coastal plains are important indicators for palaeoenvironmental reconstructions. Present day, the using of phytoliths for the Quaternary studies in the coastal areas in Brazil has not been elaborated yet. The persuasive implications of phytoliths will be made on the base of reference collection of phytoliths obtained

2008-01-01

148

Notas sobre Fitólitos em Androtrichum trigynum (Spr.) Pfeiffer no Extremo Sul do Brasil: Tipos Morfológicos e uso nas Paleoreconstruções Costeiras  

Microsoft Academic Search

Convincing recognition of dispersed in the quaternary sediments phytoliths could be made using reference collection of phytoliths from the parent extant plants. In this work, phytoliths produced by one psammophylous species of sedge Androtrichum trigynum, an endemic species, in dunes and interdunes in the coastal plains of the South America, were described. The main morphological types of phytoliths for this

149

FEMINIZAÇÃO DO MAGISTÉRIO NO BRASIL: O QUE RELATAM OS PARECERES DO PRIMEIRO CONGRESSO DA INSTRUÇÃO DO RIO DE JANEIRO  

Microsoft Academic Search

The objective of the present article is to reflect on the process of feminization of the professorship, taking as base of the documentary research the analysis of a primary source that in general portrays sources of the educational and expresses Brazilian thoughts and the ideas in circulation on the education detaching specifically the relative questions the feminization of the professorship

Juliana Keller Nogueira

150

Dogmatism and the "Knowledge Gap" among Users of the Mass Media of Communication: A Study in Brasilia, Brasil.  

ERIC Educational Resources Information Center

|A study was conducted to discover whether (1) use of each of the print and broadcast media could be correlated with subjects' knowledge level, and (2) whether controlling for dogmatism would increase the proportion of media users, with higher levels of knowledge among those less dogmatic, and decrease the proportion among the more dogmatic.…

Simmons, Robert E.; Garda, Eduardo Carlos

151

FLORA DE INSELBERGS DA REGIÃO DE MILAGRES, BAHIA, BRASIL: I. CARACTERIZAÇÃO DA VEGETAÇÃO E LISTA DE ESPÉCIES DE DOIS INSELBERGS  

Microsoft Academic Search

Flora of the Inselbergs of the Milagres region, state of Bahia, Brazil: I. Vegetational aspects and checklist of two Inselbergs). This work is a contribution to the vascular flora of inselbergs. The study area is situated in the municipality of Itatim (region of Mila- gres) in the semi-arid region of the state of Bahia, Brazil. Two inselbergs 20km apart from

Flávio França; Efigênia de Melo; Cosme Correia dos Santos

152

Flutuação populacional de Grapholita molesta (Busck) com armadilhas de feromônio sexual na cultura do pessegueiro em Bento Gonçalves, RS, Brasil  

Microsoft Academic Search

Seasonal fluctuation of male Grapholita molesta (Busck, 1916) (Lepidoptera: Tortricidae) was evaluated in two commercial peach orchards cv Chiripá in Bento Gonçalves, RS, from June of 2000 to July of 2002. The insects were evaluated weekly using Delta traps (two\\/orchard) baited with commercial synthetic sex pheromone (E-8-dodecenil- acetato + Z-8-dodecenil-acetato + Z-8-dodecenol). Four peaks were observed during peach production period:

Cristiano João Arioli; Geraldo Andrade Carvalho; Marcos Botton

2005-01-01

153

Confusão sexual para o controle de Grapholita molesta (Lepidoptera: Tortricidae), em pomares de macieira, em Fraiburgo (SC), Brasil  

Microsoft Academic Search

MATING DISRUPTION FOR THE CONTROL OF Grapholita molesta (LEPIDOPTERA: TORTRICIDAE), IN FRAIBURGO, SANTA CATARINA, BRAZIL The control of Grapholita molesta (Lepidoptera: Tortricidae) was assessed by using the mating disruption technique in an apple orchard in Fraiburgo, SC. Quant G.m. synthetic pheromone formulation (400 mg of (Z\\/E) - 8 - dodecenyl acetate 14% p\\/v) was used, with 500 dispensers per hectare,

Lino B. Monteiro; Alexandre de Souza; Luiz Belli

2008-01-01

154

PRÁTICAS CULTURAIS DE CUIDADOS DE MULHERES MÃES DE RECÉM-NASCIDOS DE RISCO DO SUL DO BRASIL  

Microsoft Academic Search

Resumen Nowadays, the issues related to woman health, seek to get a new integrality focus. It will be able to go beyond the limited effects of a biomedical model in health. Not considering the life experience and cultural aspects of the women and their family. This study aimed to understand the influence of the cultural context during pregnancy and in

Maria de Lourdes; Denardin Budó; Eliane Tatsch Neves; Marcio Rossato Badke

155

Transición en el consumo alimentario de preescolares en la ciudad de São Paulo, Brasil (1984\\/85 - 1995\\/96)  

Microsoft Academic Search

Results: There was an increase in medium food intake of powdered milk (31,23%), thickeners (32,53%), choco- late powdered (74,24%), cookies (52,49%), sugar (76,75%), and a reduction of bread intake (21,29%). The energy contribution from cookies, chocolate powders and sugar has increased. The most frequent ingested food of 1984\\/1985 were sugar, breads and milk and in 1995\\/ 1996 breads, fruits and

S. Tucunduva

156

ESTRUTURA FLORAL DAS ANGIOSPERMAS USADAS POR HELICONIUS ERATO PHYLLIS (LEPIDOPTERA, NYMPHALIDAE) NO RIO GRANDE DO SUL, BRASIL1  

Microsoft Academic Search

FLOWER STRUCTURE OF ANGIOSPERMS USED BY HELICONIUS ERATO PHYLLIS (LEPIDOPTERA, NYMPHALIDAE) IN RIO GRANDE DO SUL STATE, BRAZIL. A field survey of flowering plants used as food resource by the adults of Heliconius erato phyllis (Fabricius, 1775) was carried out in four sites located in Rio Grande do Sul state, Brazil. Samples were taken in preserved areas of the Atlantic

Claudine A. Corrêa; Bruno E. Irgang; Gilson R. P. Moreira

157

Ocorrência e coleta de colônias e de enxames de abelhas africanizadas na zona urbana de Maringá, Estado do Paraná, Brasil  

Microsoft Academic Search

Occurrence and collection of Africanized honeybee swarm and colonies on the urbane zone of Maringá, Paraná State, Brazil. During the last years, a great number of swarms of Africanized honey bees migrated to the urban zone of Maringá, Paraná State, Brazil, causing a great concern, mainly in those who live at home with children, elderly and allergic people. This study

Vagner De Alencar Arnaut de Toledo; Fábio Luiz Buranelo Toral; Sidnei Bueno de Miranda; Adilson Shiraishi; Juliano Hideo Hashimoto; Waldirene Rossi da Silva

2006-01-01

158

Dinâmica da alimentação natural de Callinectes danae Smith (Decapoda, Portunidae) na Lagoa da Conceição, Florianôpolis, Santa Catarina, Brasil  

Microsoft Academic Search

FEEDING NATURAL DYNAMICS OF Callinectes danae SMITH (DECAPODA, PORTUNIDAE) FROM LAGOA DA CONCEIÇÃO, FLORIANÓPOLIS, SANTA CATARINA, BRAZIL. From March\\/91 to February\\/92 monthly collection surveys were carried out to obtain basic information about the dynamics of feeding and trophic spectrum of C. danae Smith, 1869. A total of 456 males and 527 females were caught. The diet of the species was

Joaquim Olinto Branco; José Roberto Verani

1997-01-01

159

Aspectos morfofisiológicos e conteúdo de óleo essencial de plantas de alfazema-do-Brasil em função de níveis de sombreamento  

Microsoft Academic Search

Morphophysiological aspects and essential oil content in Brazilian-lavender as affected by shadowing Changes in the anatomical and physiologic characteristics and in the production of essential oil of medicinal plants under influence of different radiation conditions have been demonstrated. The objective of this study was to characterize the variation in the anatomical and physiologic characteristics, and in the essential oil content

José Eduardo BP Pinto; Júlio César W Cardoso; Evaristo M de Castro; Suzan Kelly V Bertolucci; Lucas A de Melo; Sara Dousseau

2007-01-01

160

Seismic characteristics of central Brazil crust and upper mantle: A deep seismic refraction study  

USGS Publications Warehouse

A two-dimensional model of the Brazilian central crust and upper mantle was obtained from the traveltime interpretation of deep seismic refraction data from the Porangatu and Cavalcante lines, each approximately 300 km long. When the lines were deployed, they overlapped by 50 km, forming an E-W transect approximately 530 km long across the Tocantins Province and western Sa??o Francisco Craton. The Tocantins Province formed during the Neoproterozoic when the Sa??o Francisco, the Paranapanema, and the Amazon cratons collided, following the subduction of the former Goia??s ocean basin. Average crustal VP and VP/VS ratios, Moho topography, and lateral discontinuities within crustal layers suggest that the crust beneath central Brazil can be associated with major geological domains recognized at the surface. The Moho is an irregular interface, between 36 and 44 km deep, that shows evidences of first-order tectonic structures. The 8.05 and 8.23 km s-1 P wave velocities identify the upper mantle beneath the Porangatu and Cavalcante lines, respectively. The observed seismic features allow for the identification of (1) the crust has largely felsic composition in the studied region, (2) the absence of the mafic-ultramafic root beneath the Goia??s magmatic arc, and (3) block tectonics in the foreland fold-and-thrust belt of the northern Brasi??lia Belt during the Neoproterozoic. Seismic data also suggested that the Bouguer gravimetric discontinuities are mainly compensated by differences in mass distribution within the lithospheric mantle. Finally, the Goia??s-Tocantins seismic belt can be interpreted as a natural seismic alignment related to the Neoproterozoic mantle domain. Copyright 2006 by the American Geophysical Union.

Soares, J. E.; Berrocal, J.; Fuck, R. A.; Mooney, W. D.; Ventura, D. B. R.

2006-01-01

161

A New Cryptic Species of South American Freshwater Pufferfish of the Genus Colomesus (Tetraodontidae), Based on Both Morphology and DNA Data  

PubMed Central

The Tetraodontidae are an Acantomorpha fish family with circumglobal distribution composed of 189 species grouped in 19 genera, occurring in seas, estuaries, and rivers between the tropical and temperate regions. Of these, the genus Colomesus is confined to South America, with what have been up to now considered only two species. C. asellus is spread over the entire Amazon, Tocantins-Araguaia drainages, and coastal environments from the Amazon mouth to Venezuela, and is the only freshwater puffers on that continent. C. psittacus is found in coastal marine and brackish water environments from Cuba to the northern coast of South America as far south as to Sergipe in Brazil. In the present contribution we used morphological data along with molecular systematics techniques to investigate the phylogeny and phylogeography of the freshwater pufferfishes of the genus Colomesus. The molecular part is based on a cytochrome C oxidase subunit I dataset constructed from both previously published and newly determined sequences, obtained from specimens collected from three distinct localities in South America. Our results from both molecular and morphological approaches enable us to identify and describe a new Colomesus species from the Tocantins River. We also discuss aspects of the historical biogeography and phylogeography of the South American freshwater pufferfishes, suggesting that it could be more recent than previously expected.

Amaral, Cesar R. L.; Brito, Paulo M.; Silva, Dayse A.; Carvalho, Elizeu F.

2013-01-01

162

Neotropical Monogenoidea. 57. Revision and phylogenetic position of Scleroductus Jara & Cone, 1989 (Gyrodactylidae), with descriptions of new species from the Guatemalan chulin Rhamdia guatemalensis (Günther) (Siluriformes: Heptapteridae) in Mexico and the barred sorubim Pseudoplatystoma fasciatum (Linnaeus) (Siluriformes: Pimelodidae) in Brazil.  

PubMed

The diagnosis of Scleroductus Jara & Cone, 1989 (Gyrodactylidae) is amended to include viviparous species having a large spine associated with the ejaculatory duct within the male copulatory organ, two band-like projections originating from the posterior margin of the superficial bar and hooks evenly distributed along the haptoral margins. Two new species of Scleroductus are described from the external surfaces of siluriform fishes of Mexico and Brazil: Scleroductus lyrocleithrum n. sp. from the Guatemalan chulin Rhamdia guatemalensis (Günther) (Heptapteridae) in a cenote on the Yucatan Peninsula, Mexico; and Scleroductus angularis n. sp. from the barred sorubim Pseudoplatystoma fasciatum (Linnaeus) (Pimelodidae) in the Rio Tocantins, Tocantins, Brazil. Scleroductus sp. is recorded from the jundiá Rhamdia quelen (Quoy & Gaimard) (Heptapteridae) in the Iguaçu drainage of southern Brazil. Phylogenetic analyses of 18S rDNA suggest that Scleroductus (represented in the analyses by Scleroductus sp. from R. quelen), Ieredactylus Schelkle, Paladini, Shinn, King, Johnson, van Oosterhout, Mohammed & Cable, 2011 (represented by its type-species) and Gyrodactyloides Bychowsky, 1947 (represented by G. bychowskii Al'bova, 1948) comprise the sister taxon to the remaining viviparous gyrodactylids, with Scleroductus serving as the sister group to Ieredactylus + Gyrodactyloides. The clade containing the three taxa is supported by two putative synapomorphic features: two band-like projections (R1 sclerites) originating from the posterior margin of the superficial bar and a large spine associated with the ejaculatory duct within the male copulatory organ. PMID:23263939

Kritsky, Delane C; Boeger, Walter A; Mendoza-Franco, Edgar F; Vianna, Rogério T

2012-12-15

163

Fishing Effort and Catch Composition of Urban Market and Rural Villages in Brazilian Amazon  

NASA Astrophysics Data System (ADS)

The management of small-scale freshwater fisheries in Amazon has been based usually on surveys of urban markets, while fisheries of rural villages have gone unnoticed. We compared the fishing characteristics (catch, effort and selectivity) between an urban market and five small villages in the Lower Tocantins River (Brazilian Amazon), downstream from a large reservoir. We recorded 86 and 601 fish landings in the urban market and villages, respectively, using the same methodology. The urban fishers showed higher catch per unit of effort, higher amount of ice (related to a higher fishing effort, as ice is used to store fish catches) and larger crew size per fishing trip, but village fishers had a higher estimated annual fish production. Conversely, urban and village fishers used similar fishing gear (gillnets) and the main fish species caught were the same. However, village fishers showed more diverse strategies regarding gear, habitats and fish caught. Therefore, although it underestimated the total amount of fish caught in the Lower Tocantins River region, the data from the urban market could be a reliable indicator of main fish species exploited and fishing gear used by village fishers. Monitoring and management should consider the differences and similarities between urban and rural fisheries, in Amazon and in other tropical regions.

Hallwass, Gustavo; Lopes, Priscila Fabiana; Juras, Anastacio Afonso; Silvano, Renato Azevedo Matias

2011-02-01

164

Genetic divergence among invasive and native populations of Plagioscion squamosissimus (Perciformes, Sciaenidae) in Neotropical regions.  

PubMed

The genetic divergence among invasive and native populations of Plagioscion squamosissimus from four Neotropical hydrographic basins was assessed using the hypervariable domain of the mitochondrial DNA (mtDNA) control region. Plagioscion squamosissimus is native to the neighbouring hydrographic basins of the Parnaíba and Amazon Rivers, and the latter includes the Araguaia-Tocantins drainage, but it is invasive in other basins due to introductions. The mtDNA nucleotide polymorphism supported the hypothesis that the Amazon and Parnaíba populations constitute the same species and are separated into two independent evolutionary lineages. Absence of nucleotide polymorphism was observed within and among P. squamosissimus populations invasive to the uppper and middle Paraná River basins. Nucleotide divergence was null or low comparing the Paraná invasive populations with the populations native to the Parnaíba River basin, whereas it was significantly high compared to Tocantins populations. These results ascertain that P. squamosissimus populations invasive to the upper Paraná River basin and to the middle Paraná River basin downstream of the Itaipu dam are derived from the Parnaíba River basin. The genetic data presented are potentially useful to assist further studies on P. squamosissimus taxonomic and geographic distribution, development of ecological guidelines for managing populations invasive to the upper Paraná River basin and for preservation of native fish diversity. PMID:22650426

Panarari-Antunes, R S; Prioli, A J; Prioli, S M A P; Gomes, V N; Júlio, H F; Agostinho, C S; Silva Filho, J P; Boni, T A; Prioli, L M

2012-06-01

165

A new cryptic species of South american freshwater pufferfish of the genus colomesus (tetraodontidae), based on both morphology and DNA data.  

PubMed

The Tetraodontidae are an Acantomorpha fish family with circumglobal distribution composed of 189 species grouped in 19 genera, occurring in seas, estuaries, and rivers between the tropical and temperate regions. Of these, the genus Colomesus is confined to South America, with what have been up to now considered only two species. C. asellus is spread over the entire Amazon, Tocantins-Araguaia drainages, and coastal environments from the Amazon mouth to Venezuela, and is the only freshwater puffers on that continent. C. psittacus is found in coastal marine and brackish water environments from Cuba to the northern coast of South America as far south as to Sergipe in Brazil. In the present contribution we used morphological data along with molecular systematics techniques to investigate the phylogeny and phylogeography of the freshwater pufferfishes of the genus Colomesus. The molecular part is based on a cytochrome C oxidase subunit I dataset constructed from both previously published and newly determined sequences, obtained from specimens collected from three distinct localities in South America. Our results from both molecular and morphological approaches enable us to identify and describe a new Colomesus species from the Tocantins River. We also discuss aspects of the historical biogeography and phylogeography of the South American freshwater pufferfishes, suggesting that it could be more recent than previously expected. PMID:24040239

Amaral, Cesar R L; Brito, Paulo M; Silva, Dayse A; Carvalho, Elizeu F

2013-09-11

166

Intoxicações provocadas por agrotóxicos de uso agrícola na microrregião de Dourados, Mato Grosso do Sul, Brasil, no período de 1992 a 2002  

Microsoft Academic Search

Reports of poisoning and suicide attempts in- volving pesticides in the micro region of Doura- dos, Mato Grosso do Sul State, Brazil, from 1992 to 2002, were evaluated, using data from the In- tegrated Center for Toxicological Surveillance under the State Health Department. A total of 475 reports were made during the period, of which 261 were accidental or occupational

Dario Xavier Pires; Eloísa Dutra Caldas; Maria Celina Piazza Recena

2005-01-01

167

ESTUDIOS TRANSCULTURALES DEL BURNOUT: LOS ESTUDIOS TRANSCULTURALES BRASIL-ESPAÑA Cross-cultural studies of burnout: Cross-cultural Brazil-Spain studies  

Microsoft Academic Search

Cross-cultural studies are not a secondary and complementary exercise in the study of the psychology; an anthropologic model of human behavior makes it necessary to state that cultural variables are not secondary but primary. For these reasons, the study of the burnout can be deepened by means of the utilization of the cross- cultural methods. It is not enough with

Bernardo Moreno Jiménez; Eva Garrosa Hernández; Macarena Gálvez Herrer

2003-01-01

168

Ocorrência de carrapatos em tamanduá-bandeira (Myrmecophaga tridactyla) e tamanduá-mirim (Tamandua tetradactyla) na região do Pantanal Sul Mato-Grossense, Brasil  

Microsoft Academic Search

The occurrence of ticks on anteaters in the Pantanal region, Mato Grosso do Sul state, Brazil, between March and February 2001 is described. Tick species identified were Amblyomma cajennense (123 males and 63 females), A. parvum (35 males, 67 females) and A. nodosum (2 males), species considered as specific of anteater in its adult phase. A. cajennense was found in

João Ricardo Martins; Ísis Meri Medri; Carlos Marcos Oliveira; Alberto Guglielmone

2004-01-01

169

Frugivoria de larvas de Neosilba McAlpine (Diptera, Lonchaeidae) sobre Psittacanthus plagiophyllus Eichler (Santalales, Loranthaceae) no sudoeste de Mato Grosso do Sul, Brasil  

Microsoft Academic Search

Larval frugivory of Neosilba McAlpine (Diptera, Lonchaeidae) on Psittacanthus plagiophyllus Eichler (Santalales, Loranthaceae) in southwestern Mato Grosso do Sul State, Brazil. Loranthaceae are hemiparasite plants with worldwide distribuition, represented in Brazil by six genera. The most important are Phthirusa, Psittacanthus and Struthanthus that parasitize a great diversity of host plants. This paper evaluated the occurrence and the seasonal fluctuation of

Claudenir S. Caires; Manoel A. Uchôa-Fernandes; Jose Nicácio; Pedro C. Strikis

2009-01-01

170

Physical demands during the hauling of fishing nets for artisan fishing using rafts in beach of Ponta Negra, Natal--Brasil.  

PubMed

The current article aims to analyse the activity and the repercussions in the health of the artisan fishermen who use rafts in the urban Beach of Ponta Negra in Natal - RN, with emphasis on the physical demands at the step of hauling the nets from the ocean. It has been taken as a reference the methodology of Work Ergonomic Analysis-WEA. 21 fishermen participated in the study (50% of the population). It was used applying observational techniques and methodologies (open and sistematic observations and simulations) interactional ( social and economic questionnaire, conversational actions, verbalizations, self confrontations and collective analysis) and health assessment (static postural assessment, movement flexibility of flexo extension of the shoulder and the ischiotibial muscle, lumbar region and hang grip. Applying the diagram of painful areas and the Nordic Questionnaire of mucleskeletal symptoms). The results were submeted to restitutions and validations with the raftmen. The hauling of the nets represents a high muscleskeletal risk, joining physical effort, adopting forced postures with the rotation of the spine and movement repetition, mainly flexo extension of vertebral spine, aggravated by the demand of strength fo the stabilizing muscles of the human body to keep the poise. The impacts of the activity of the fisherman of Ponta Negra, related to postures and strength demand were observed in the postural assessment and are related to the activity. PMID:22316760

Jaeschke, Anelena; Saldanha, Maria Christine Werba

2012-01-01

171

Comparação da morfologia foliar de espécies arbóreas de três estádios sucessionais distintos de floresta ombrófila densa (Floresta Atlântica) no Sul do Brasil1  

Microsoft Academic Search

Comparison of leaf morphology of tree species from three distinct successional stages of tropical rain forest (Atlantic Forest) in Southern Brazil). We investigated the leaf morphology of trees from three distinct successional stages (early, intermediate, late) of a lowland rain forest located near the coast of Paraná State, Brazil. This forest grows on sandy soil with low nutrient content. Leaves

MARIA REGINA T. BOEGER; CELINA WISNIEWSKI

2003-01-01

172

Tabagismo em adolescentes de área urbana na região Sul do Brasil Tobacco smoking among teenagers in an urban area in Southern Brazil  

Microsoft Academic Search

Objective To evaluate the prevalence of tobacco smoking and its determinants among adolescents. Methods A cross-sectional study, using a multiple stage sampling, was carried out in 1997 and a sample of adolescents aged between 12 and 18 years who were living in the urban area of Pelotas, Brazil, was studied. Those who reported having smoked at least one cigarette per

Bernardo Lessa Horta; Ricardo Tavares Pinheiro; Elaine Tomasi; Escola de Psicologia; Gonçalves Chaves

2001-01-01

173

Bactérias transportadas em mutucas (Diptera: Tabanidae) no nordeste do estado do Pará, Brasil Bacteria transported by horseflies (Diptera: Tabanidae) in the northeast of Pará State, Brazil  

Microsoft Academic Search

Resumo: Os insetos da família Tabanidae (Diptera), conhecidos vulgarmente como mutucas, são considerados potenciais pragas ao homem e animais domésticos pelo comportamento hematófago de suas fêmeas. São capazes de transportar mecanicamente vírus, bactérias e helmintos, pelo fato desses patógenos aderirem-se à estrutura da probóscide. As coletas dos insetos foram realizadas em áreas peri-urbanas e florestadas, utilizando-se armadilhas Malaise e cavalos

Willy Cristiano Luz-Alves; Inocêncio de Sousa Gorayeb; José Caetano Lima Silva; Edvaldo Carlos; Brito Loureiro

174

REFLEXÕES SOBRE O FUTURO DO GÁS NATURAL NO BRASIL E NA REGIÃO SUDESTE APÓS A DESCOBERTA DAS RESERVAS NA BACIA DE SANTOS  

Microsoft Academic Search

This article discusses about the perspectives for using natural gas in Brazil and particularly in its Southeast region, taking into consideration the recent large gas discoveries in the Santos Basin, which have already doubled the Brazilian gas reserves. Such discoveries are very significant given the volumes of gas found in place and their proximity to major consumption centers in the

FLÁVIO FERNANDES; EDMILSON MOUTINHO DOS SANTOS

175

EFEITO DE PREPAROS E CULTURAS DE COBERTURA VEGETAL SOBRE AS PROPRIEDADES FÍSICAS DO SOLO E A PRODUTIVIDADE DA MANDIOCA NA REGIÃO OESTE DO PARANÁ - BRASIL  

Microsoft Academic Search

RESUMO: O preparo convencional é muito utilizado para o cultivo da mandioca e tem preocupado produtores, técnicos, agrônomos e pesquisados em função dos problemas ambientais associados e este tipo de manejo. Dessa forma, o presente trabalho objetivou avaliar as propriedades físicas do solo e a produtividade da mandioca proporcionada por diferentes sistemas de preparo. O experimento foi realizado no município

Emerson FEY; Arno Udo DALLMEYER; Laércio Augusto PIVETTA; Laerte Gustavo PIVETTA; Julio Henrique de SOUZA

176

Avaliacao geoquimica das bacias marginais ao sul da Bahia, Brasil. (Geochemical evaluation of marginal basins in the south of Bahia state, Brazil).  

National Technical Information Service (NTIS)

Geochemical analyses were performed on more than 700 rock samples and 4 oil samples, from Mucuri, Cumuruxatiba and Jequitinhonha basins, offshore Bahia state, Brazil. The methods employed in this study includes the evaluation of organic carbon contents, R...

P. C. Gaglianone L. A. F. Trindade M. M. Nascimento

1987-01-01

177

Signifi cados e usos de materiais educativos sobre hanseníase segundo profi ssionais de saúde pública do Município do Rio de Janeiro, Brasil  

Microsoft Academic Search

This article reflects on the communications pro- cesses in the Hansen Disease Control Programs under the Unified National Health System (SUS) in Brazil, analyzing how professionals at two public health services in Rio de Janeiro perceive the educational materials on the disease. The ar- ticle discusses how analysis of printed materials favors negotiation of prevailing meanings and practices on Hansen

Pública Sergio Arouca; Adriana Kelly-Santos; Simone Monteiro; Brani Rozemberg

2009-01-01

178

AGRUPAMENTO DE MUNICÍPIOS DO PONTAL DO PARANAPANEMA, ESTADO DE SÃO PAULO, EM FUNÇÃO DE VARIÁVEIS RELACIONADAS À AGROPECUÁRIA rfiretti@apta.sp.gov.br Apresentação Oral-Desenvolvimento Rural, Territorial e regional RICARDO FIRETTI 1; VANDERLEI JOSÉ SEREIA 2; EDUARDO CARDOSO DE OLIVEIRA 3; ANTONIO ASSIZ DE CARVALHO FILHO 4. 1.APTA\\/SAA-SP, PRESIDENTE PRUDENTE - SP - BRASIL; 2.UEL, LONDRINA - PR - BRASIL; 3.AEDZO, PRESIDENTE PRUDENTE - SP - BRASIL; 4.FCT\\/UNESP, PRESIDENTE PRUDENTE - SP - BRASIL. AGRUPAMENTO DE MUNICÍPIOS DO PONTAL DO PARANAPANEMA , ESTADO DE SÃO PAULO, EM FUNÇÃO DE VARIÁVEIS RELACIONADAS À  

Microsoft Academic Search

Recognized in the State of São as one of the last f rontiers of development paulista, the Pontal do Par anapanema, has its main base in the agricultural economy, but needs to further diversify and increase technology. Order to support actions of public and private actors with r egard to rural development, this work had as main o bjective to

Ricardo Firetti; Vanderlei José Sereia; Eduardo Cardoso de Oliveira; Antônio Assiz de Carvalho

179

Prevalence of temporary social security benefits due to respiratory disease in Brazil* Prevalência de benefícios de seguridade social temporários devido a doença respiratória no Brasil  

Microsoft Academic Search

Objective: To determine the prevalence of temporary social security benefits due to respiratory disease granted to employees, as well as the number of lost workdays and costs resulting from those in Brazil between 2003 and 2004. Methods: Cross-sectional study using data obtained from the Unified System of Benefits of the Brazilian Institute of Social Security (INSS, Instituto Nacional de Seguro

2009-01-01

180

O Direito Costumeiro na Legislacao e na Jurisprudencia do Brasil: A Desescravizacao (Common Law in Legislation and Jurisprudence in Brazil: Abolition of Slavery).  

ERIC Educational Resources Information Center

|Demonstrates that in Brazil, common law was an important component for development of the political project, elaborated with the objective of organizing and disciplining the formation of a market of free workers. Considers that the history of work relations originated in the Portuguese discovery of Brazil in the 16th century. (BT)|

Gebara, Ademir

2000-01-01

181

Cidadania Negada: A Educacao como Instrumento de Combate a Pobreza no Brasil (Denial of Citizenship: Education as a Way to Fight Poverty in Brazil).  

ERIC Educational Resources Information Center

|Compares two compensatory social/educational programs developed by the Brazilian government in the last 15 years. States that although one was formulated during the military regime and one during the present government, they both combat poverty and encourage privatization. Concludes that this promotes a process that sees education as social…

Germano, Jose Willington

1995-01-01

182

A Ideia de Universidade no Brasil: Influencia do Movimento de Cordoba (The Idea of the University in Brazil: Influences of the Cordoba Movement).  

ERIC Educational Resources Information Center

|Examines influences of the Cordoba Movement in formulation of ideas concerning the inseparability among teaching, research, and extension--a new paradigm for the Brazilian university. Finds the formulation of this inseparability had its origins in the Brazilian student movement of the 1960s which included theses of the Cordoba Manifesto. (BT)|

Mazzilli, Sueli

2000-01-01

183

A Educacao dos Portadores de Necessidades Especiais no Brasil no Periodo de 1910 a 1949 (Education of Those with Special Needs in Brazil from 1920 to 1949).  

ERIC Educational Resources Information Center

|Examines education given to those with special needs in Brazil from 1910-1949. Shows the dichotomy of meanings in which the education of special needs persons during that period, besides being marked by concepts related to the exclusion paradigm, already indicated signs of respect for diversity and civil rights. (BT)|

Marques, Carlos Alberto; Santiago, Mylene Cristina; de Moura, Simone Moreira

2000-01-01

184

ECOLOGY, BEHAVIOR AND BIONOMICS Xylocopa (Monoxylocopa) abbreviata Hurd & Moure (Hymenoptera: Apidae) e Encholirium spectabile (Bromeliaceae): Uma Associação Estreita no Semi-Árido do Brasil Tropical  

Microsoft Academic Search

Females of Xylocopa (Monoxylocopa) abbreviata Hurd & Moure build their nests in the flower stalks of Encholirium spectabile (Bromeliaceae). This bromeliad grows clumped on rock outcrops exposed to direct sunlight in the semi-arid tropical caatingas of northeastern Brazil. In the largest aggregation of E. spectabile, X. abbreviata reached 1,7 nests\\/stalk and around 20 nests\\/ha. The stalks are available as nest

MAURO RAMALHO; MILSON A. BATISTA; E MAISE SILVA

185

Fenologia reprodutiva, polinização e sistema reprodutivo de Sophora tomentosa L. (Leguminosae - Papilionoideae) em restinga da praia da Joaquina, Florianópolis, sul do Brasil  

Microsoft Academic Search

Reproductive phenology, pollination and reproductive system of Sophora tomentosa L. (Leguminosae- Papilionoideae) on coastal sand dunes of Joaquina beach, Florianópolis, southern Brazil. The shrub Sophora tomentosa flowers from the month of October to June. The fructification begins soon after the start of the flowering period and continues up to the next flowering. The anthesis takes place during the day, and

Elisa Maria Lisboa Nogueira

186

MEDIDAS BIOLÓGICAS E ÍNDICES DE QUALIDADE DA ÁGUA DE UMA MICROBACIA COM POLUIÇÃO URBANA E DE CURTUMES NO SUL DO BRASIL  

Microsoft Academic Search

BIOLOGICAL MEASURES AND WATER QUALITY INDICES IN A MICRO-WATERSHED POLLUTED WITH URBAN AND TANNERY SEWAGE IN SOUTH BRAZIL. The article is based on a comparative study between biological measures based on the benthic macroinvertebrate communities and the Water Quality Index (WQI) determined by physical-chemical parameters. The data were collected in the downstream region of the Sinos river basin, in the

Milton Norberto Strieder; Luiz Henrique Ronchi; Cristina Stenert; Ricardo Thormann Scherer; Ulisses Gaspar Neiss

187

Diversidade de Lepidoptera (Papilionoidea e Hesperioidea) em dois fragmentos de floresta no município de Frederico Westphalen, Rio Grande do Sul, Brasil  

Microsoft Academic Search

Diversity of Lepidoptera (Papilionoidea e Hesperioidea) in two fragments in Frederico Westphalen, Rio Grande do Sul State, Brazil. A systematic survey was carried out in two localities of the Municipal District of Frederico Westphalen, fragment of Villa Faguense and Schoenstatt's Sanctuary, situated 1,500 m apart, from March 2005 to April 2006. In 140 hours of sampling, 3123 individuals, distributed in

Ricardo Giovenardi; Rocco Alfredo Di Mare; Jonas Sponchiado; Suelem H. Roani; Fábio A. F. Jacomassa; Augusto B. Jung; Mirian A. Porn

2008-01-01

188

Simulated Extreme Prepitation Indices over Northeast Brasil in Current Climate and Future Scenarios RCP4.5 and RCP8.5  

NASA Astrophysics Data System (ADS)

In this study, we analyzed extreme precipitation indices, for present and future modeled climates over Northeast of Brazil (NEB), from CORDEX simulations over the domain of Tropical Americas. The period for the model validation was from 1989-2007, using data from the European Center (ECWMF) Reanalysis, ERA-INTERIM, as input to drive the regional model (RAMS 6.0). Reanalysis data were assimilated via both lateral boundaries and the entire domain (a much weaker "central nudging"). Six indices of extreme precipitation were calculated over NEB: the average number of days above 10, 20 and 30 mm in one year (R10, R20, R30), the number of consecutive dry days (CDD), the number of consecutive wet days (CWD) and the maximum rainfall in five consecutive days (RX5). Those indices were compared against two independent databases: MERRA (Modern Era Retrospective analysis for Research and Applications) and TRMM (Tropical Rainfall Measuring Mission). After validation, climate simulations were performed for the present climate (1985-2005) and short-term (2015-2035), mid-term (2045-2065) and long-term (2079 to 2099) future climates for two scenarios: RCP 4.5 and RCP 8.5, nesting RAMS into HadGEM2-ES global model (a participant of CMIP5). Along with the indices, we also calculated Probability Distribution Functions (PDFs) to study the behavior of daily precipitation in the present and by the end of the 21st century (2079 to 2099) to assess possible changes under RCPs 4.5 and 8.5. The regional model is capable of representing relatively well the extreme precipitation indices for current climate, but there is some difficulties in performing a proper validation since the observed databases disagree significantly. Future projections show significant changes in most extreme indices. Rnn generally tend to increase, especially under RCP8.5. More significant changes are projected for the long-term period, under RCP8.5, which shows a pronounced R30 enhancement over northern states. CDD tends to decrease over most of NEB in the short but this trend is reverted toward the end of the century in both scenarios with a significant increase in the duration of the dry season over Northwestern and Eastern NEB (exceeding 50 days over certain areas), whereas projected CWD changes are smaller. Rx5 shows a general increasing trend especially in the long term period,under RCP8.5.

Wender Santiago Marinho, Marcos; Araújo Costa, Alexandre; Cassain Sales, Domingo; Oliveira Guimarães, Sullyandro; Mariano da Silva, Emerson; das Chagas Vasconcelos Júnior, Francisco

2013-04-01

189

EVOLUÇÃO DAS EXPORTAÇÕES, COMÉRCIO INTRASETORIAL E IMPACTOS AMBIENTAIS DOS NEGÓCIOS INTERNACIONAIS DE MADEIREIRA BRASILEIRA  

Microsoft Academic Search

O Brasil é importante exportador de madeira do mundo, tendo como principais mercados de destino os Estados Unidos e a União Européia. Desse modo, nesse estudo pretende-se estimar as equações de oferta e demanda por exportação madeireira do Brasil para os Estados Unidos e a União Européia; identificar as fontes de comércio madeireiro do Brasil nos seus principais mercados de

Rachel Silva Almeida; Rosemeiry Melo Carvalho; Ruben Dario Mayorga Mera

2008-01-01

190

Regional scale analysis of landform configuration with base-level (isobase) maps  

NASA Astrophysics Data System (ADS)

Base-level maps (or "isobase maps", as originally defined by Filosofov, 1960), express a relationship between valley order and topography. The base-level map can be seen as a "simplified" version of the original topographic surface, from which the "noise" of the low-order stream erosion was removed. This method is able to identify areas with possible tectonic influence even within lithologically uniform domains. Base-level maps have been recently applied in semi-detail scale (e.g., 1:50 000 or larger) morphotectonic analysis. In this paper, we present an evaluation of the method's applicability in regional-scale analysis (e.g., 1:250 000 or smaller). A test area was selected in northern Brazil, at the lower course of the Araguaia and Tocantins rivers. The drainage network extracted from SRTM30_PLUS DEMs with spatial resolution of approximately 900 m was visually compared with available topographic maps and considered to be compatible with a 1:1,000 000 scale. Regarding the interpretation of regional-scale morphostructures, the map constructed with 2nd and 3rd-order valleys was considered to present the best results. Some of the interpreted base-level anomalies correspond to important shear zones and geological contacts present in the 1:5 000 000 Geological Map of South America. Others have no correspondence with mapped Precambrian structures and are considered to represent younger, probably neotectonic, features. A strong E-W orientation of the base-level lines over the inflexion of the Araguaia and Tocantins rivers, suggest a major drainage capture. A N-S topographic swath profile over the Tocantins and Araguaia rivers reveals a topographic pattern which, allied with seismic data showing a roughly N-S direction of extension in the area, lead us to interpret this lineament as an E-W, southward-dipping normal fault. There is also a good visual correspondence between the base-level lineaments and geophysical anomalies. A NW-SE lineament in the southeast of the study area partially corresponds to the northern border of the Mosquito lava field, of Jurassic age, and a NW-SE lineament traced in the northeastern sector of the study area can be interpreted as the Picos-Santa Inês lineament, identifiable in geophysical maps but with little expression in hypsometric or topographic maps.

Grohmann, C. H.; Riccomini, C.; Chamani, M. A. C.

2011-05-01

191

CARACTERIZAÇÃO DA PRODUÇÃO CIENTÍFICA SOBRE DOENÇAS SEXUALMENTE TRANSMISSÍVEIS E HIV\\/AIDS PUBLICADOS EM PERIÓDICOS DE ENFERMAGEM DO BRASIL CHARACTERISTICS OF SCIENTIFIC PRODUCTION ABOUT SEXUALLY TRANSMITTED DISEASES AND HIV\\/AIDS PUBLISHED IN BRAZILIAN NURSING JOURNAL CARACTERIZACIÓN DE PRODUCCÍON CIENTÍFICA SOBRE ENFERMEDADES SEXUALMENTE TRASMISIBLES Y SIDA PUBLICADOS EN PERIÓDICOS DE ENFERMERÍA DE BRASIL  

Microsoft Academic Search

STD\\/Aids control represents a challenge to humanity due to its biopychosocial impact. In view of this reality, an exploratory, descriptive and documental study was conducted with the purpose to characterize the scientific production on STD published in 14 Brazilian nursing journals from 1933 to 1999. The sample consisted of 73 publications of which 55 concerned HIV\\/Aids and 18 were related

Renata Karina Reis; Elucir Gir

192

[Cutaneous leishmaniasis in Amazonia: isolation of Leishmania (Viannia) lainsoni from the rodent Agouti paca (Rodentia: Dasyproctidae), in the state of Pará, Brazil].  

PubMed

The isolation of Leishmania (V.) lainsoni is recorded for the first time from a wild animal, the rodent Agouti paca (Rodentia: Dasyproctidae), from Pará State, north Brazil. Isolates of the parasite were made from apparently normal skin of 3 specimens of this rodent captured on the Island of Tocantins, in the municipality of Tucuruí, an area subsequently flooded in the formation of the lake associated with the Tucuruí hydroelectric dam. No isolations were made from the viscera. Identification of the parasite was in each case based on morphology of the amastigotes and promastigotes, behavior of the organism in hamsters, isoenzymes profiles and the use of monoclonal antibodies. The inapparent nature of the infection leads us to suggest that the "paca", Agouti paca, represents a primitive host of L. (V.) lainsoni in the Amazon Region. PMID:1843391

Silveira, F T; Lainson, R; Shaw, J J; Braga, R R; Ishikawa, E E; Souza, A A

193

Molecular characterization and phylogenetic relationships among species of the genus Brycon (Characiformes: Characidae) from four hydrographic basins in Brazil.  

PubMed

Brycon is one of the main genera of Neotropical freshwater fish. In Brazil, Brycon species have been found in many hydrographic basins, such as the Amazon, Paraná, Paraguay, and Araguaia-Tocantins basins. We examined the phylogenetic relationships among the species Brycon orbignyanus, B. hilarii, B. cf. pesu, B. cephalus, B. falcatus, and B. gouldingi, using mitochondrial and nuclear molecular markers. Specimens of B. orbignyanus were collected in the Paraná River. Specimens of B. hilarii were collected in the Manso River. Specimens of B. cephalus were obtained from a fish farm, and specimens of B. cf. pesu, B. falcatus and B. gouldingi were sampled in the Araguaia-Tocantins basin. DNA extraction was carried out using the phenol/chloroform method. Molecular polymorphism studies of Brycon species were carried out with the inter-simple sequence repeat (ISSR) technique, using the total DNA of six specimens of each species. In DNA amplification of B. cf. pesu, eight specimens were used. The partial sequence of mitochondrial cytochrome b was amplified by PCR. The PCR products were used directly in sequencing reactions. Each ISSR primer produced from 7 to 14 scorable and reproducible bands. The (GGAC)(3)A and (GGAC)(3)C primers produced the greatest number of species-specific bands. A 264-bp fragment, corresponding to the partial region of mitochondrial DNA cytochrome b, was sequenced and used for analysis. According to the phylogenetic tree obtained from the data, these Brycon species can be divided into two clades: one comprised only B. cf. pesu, and the second comprised the remaining Brycon species. We conclude that ISSR primers can be used for the identification of species-specific bands in fish, such as Brycon spp. PMID:20449799

Antunes, R S P; Gomes, V N; Prioli, S M A P; Prioli, R A; Júlio, H F; Prioli, L M; Agostinho, C S; Prioli, A J

2010-04-13

194

Distribution and quantification of Candidatus Liberibacter americanus, agent of huanglongbing disease of citrus in São Paulo State, Brasil, in leaves of an affected sweet orange tree as determined by PCR  

Microsoft Academic Search

Huanglongbing (HLB), an insect-transmitted disease of citrus, known for many years in Asia and Africa, has appeared in the state of São Paulo State (SSP), Brazil, in 2004, and the state of Florida, USA, in 2005. HLB endangers the very existence of citrus, as trees infected with the bacterial pathogen, irrevocably decline. In the absence of curative procedures, control of

Diva C. Teixeira; Colette Saillard; Carole Couture; Elaine C. Martins; Nelson A. Wulff; Sandrine Eveillard-Jagoueix; Pedro T. Yamamoto; Antonio J. Ayres; Joseph M. Bové

2008-01-01

195

ÍNDICES DE SÍTIOS PARA Hovenia dulcis Thunberg NA REGIÃO CENTRAL DO ESTADO DO RIO GRANDE DO SUL, BRASIL SITES INDEX FOR Hovenia dulcis Thunberg IN THE CENTRAL REGION OF THE STATE OF RIO GRANDE DO SUL, BRAZIL  

Microsoft Academic Search

The main objective of this work is to study the index forest sites build, for the dominant height, of populations located in the central area of the state of Rio Grande do Sul. To do that, information from 3 stands located at FEPAGRO was used. To construct the curves index sites forest, information from 18 dominant trees was collected in

Gerson Luiz Selle; Frederico Dimas Fleig; Elisabete Vuaden; Evaldo Muñoz Braz

2009-01-01

196

Análise comparativa da legislação sobre rótulo alimentício do Brasil, Mercosul, Reino Unido e União Européia* Comparative analysis of the Brazilian\\/ Mercosul and British\\/European Union food labeling legislation  

Microsoft Academic Search

Descritores Rotulagem de alimentos, legislação e jurisprudência. # Legislação sobre alimentos. # Necessidades nutricionais. # Política de nutrição. Promoção da saúde. Abstract Objective To analyze the Brazilian\\/Mercosul and the British\\/European Union food labeling legislation. Methods The analysis was carried out using a set of 19 questions considered important to describe and compare the different sets of legislation. Results The results

Roger K Celeste

197

Institutional Entrepreneurship and Collective Identity: the emergence of the HIV\\/AIDS policy field in Brazil Empreendedorismo Institucional e Identidade Coletiva: a emergência do campo da política em HIV\\/AIDS no Brasil  

Microsoft Academic Search

This study seeks to qualify the action of social entrepreneurs looking at the collective identity as an important resource and a defining element of discursive strategies directed to promote changes. We understand institutional entrepreneurship as a collective action that is both means of and a resource to promote changes. We examined the emergence of the Brazilian HIV\\/ AIDS policy and

Patricia Mendonça; Mario Aquino Alves; Luiz Claudio Campos

198

Spatial and seasonal distribution of the hermit crab Pagurus exilis (Benedict, 1892) (Decapoda: Paguridae) in the southwestern coast of Brazil Distribución espacial y temporal del cangrejo ermitaño Pagurus exilis (Benedict, 1892) (Decapoda: Paguridae) en la costa sudoccidental de Brasil  

Microsoft Academic Search

This study aimed to assess the spatial and seasonal distribution of the hermit crab Pagurus exilis in Caraguatatuba region, characterizing the abundance and distribution of individuals seasonally and bathymetrically. The relationship between groups of individuals and environmental factors (temperature, salinity, depth, amount of organic matter and texture of sediment) was checked. Sampling was carried out monthly from July 2001 to

Andrea L. Meireles; Mariana Terossi; Renata Biagi; Fernando L. Mantelatto

2006-01-01

199

Águas estuarinas e sustentabiliadde social local: um estudo da pesca artezanal do camarão-branco Litopenaeus schmitti Custacea, de capoda, penaeidae)no estuário do Rio Formoso, Pernambuco, Brasil  

Microsoft Academic Search

The water hydrology in stuarine areas is essential for the maintenance of this biological system. Considering the socioeconomic importance of shrimp harvest from Formoso River, located in the south coast of Pernambuco, the purpose of this study was to characterize the water quality, the biology of white shrimp Litopenaeus schmitti and the manual and rudimentary harvesting activities in this estuary,

Goretti Sônia da Silva; Viviane Barros de Brito; Aline Elesbão; Galba Maria de Campos-Takaki

2006-01-01

200

Qualidade de produtos a base de plantas medicinais comercializados no Brasil: castanha-da-índia (Aesculus hippocastanum L.), capim-limão (Cymbopogon citratus (DC.) Stapf ) e centela (Centella asiatica (L.) Urban)  

Microsoft Academic Search

Quality of products made from medicinal plants commercialized in Brazil: horsechestnut (Aesculus hippocastanum L.), lemongrass (Cymbopogon citratus (DC.) Stapf), and gotu kola (Centella asiatica (L.) Urban). Aiming to evaluate the quality of products made from medicinal plants, there were analyzed ten samples of horsechestnut, eleven samples of lemongrass, and six samples of gotu kola commercialized in pharmacies from the city

Joabe Gomes de Melo; Járisson Diógenes Guilherme da Roch Martins; Elba Lúcia Cavalcanti de Amorim; Ulysses Paulino de Albuquerque

2007-01-01

201

I processi cumulativi nella crisi del debito degli anni 80: una lettura dai casi di Argentina, Brasile e Messico Cumulative processes in the 1980s debt crisis: an analysis from Argentina, Brazil and Mexico's case studies  

Microsoft Academic Search

This paper analyses the 1980s Latin American debt crisis in Argentina, Brazil and Mexico and, in particular, the influence of cumulative processes at work in its early and final stages. The paper is organised in three sections. The first examines the crisis<92> features in the three countries, and maps the key macroeconomic and behavioural relationships at its onset and resolution.

Andrea de Panizza

2003-01-01

202

Desenvolvimento tecnologico na fabricacao de materiais para o setor nuclear e suas consequencias para o mercado do Brasil. (Technology development in materials working for nuclear sector and its consequences for the Brazilian market).  

National Technical Information Service (NTIS)

The technology transfer model adopted in materials development for Brazilian nuclear sector is described. Materials are very important for the industrial development and the National nuclear program has contributed with others areas, for example, metallur...

A. R. Volta

1992-01-01

203

Comparações das condições socioeconômicas e reprodutivas entre mães adolescentes e adultas jovens em três maternidades públicas de Maceió, Brasil. Comparisons of socioeconomic and reproductive factors among adolescent and young adult mothers in three public maternities of Maceió, Brazil  

Microsoft Academic Search

Objectives: describe and compare social and economic conditions, prenatal care, exposur e to tobacco and alcohol and reproductive factors among adolescent and young adult mothers in three public maternity hospitals located in Maceió, Alagoas, Northeast Brazil. Methods: 250 puerperal adolescents (< 20 years old) and 250 puerperal young adult mothers (between 20 and 30 years old) were inter viewed. A

Samir B. Kassar; Marilia de C. Lima; Maria de Fátima; M. de Albuquerque; Marco Antônio Barbieri; Ricardo Q. Gurgel

204

Idades Th-U-PbT de Monazita e Geotermobarometria de Rochas Metapelíticas de Alto Grau do Sistema Orogênico Itabuna-Salvador-Curaçá, BA, Brasil: um Estudo em Microssonda Eletrônica  

Microsoft Academic Search

Electron microprobe Th-U-PbT dating of monazite was performed on aluminous gneiss samples from the northern Jacurici and southern Ilhéus areas of the Itabuna-Salvador-Curaçá Orogenic System. Studied samples are spinel-sillimanite-cordierite- garnet gneiss and corundum-spinel-sillimanite-garnet gneiss that equilibrated during a high temperature metamorphism at T-P conditions of about 835°C\\/6.9 kbar and 890°C\\/7.4 kbar, respectively. Microprobe ages of monazite in equilibrium with these

Silvio Roberto; Farias Vlach; Eliane Aparecida Del Lama

205

Úlcera de perna: um estudo de casos em Juiz de Fora-MG (Brasil) e região* Leg ulcer: an observational study in Juiz de Fora, MG (Brazil) and region  

Microsoft Academic Search

Resumo: FUNDAMENTOS: Úlcera de perna (UP) caracteriza-se por perda do tegumento nas extremidades dos membros inferiores causada geral- mente por disfunção vascular. O BJETIVOS: Caracterizar clínica e epidemiologicamente a amostra populacional com UP atendida nos centros de saúde de Juiz de Fora. PACIENTES E MÉTODOS: Submetidos ao protocolo clínico 124 pacientes com UP, de Juiz de Fora e região de

Marco Andrey; Cipriani Frade; Igor Brum Cursi; Felipe Fortes Andrade; Samara Casemiro Soares; Sandro V. Santos; Norma Tiraboschi Foss

206

A spatial approach for the epidemiology of antibiotic use and resistance in community-based studies: the emergence of urban clusters of Escherichia coli quinolone resistance in Sao Paulo, Brasil  

Microsoft Academic Search

Background  Population antimicrobial use may influence resistance emergence. Resistance is an ecological phenomenon due to potential transmissibility.\\u000a We investigated spatial and temporal patterns of ciprofloxacin (CIP) population consumption related to E. coli resistance emergence and dissemination in a major Brazilian city. A total of 4,372 urinary tract infection E. coli cases, with 723 CIP resistant, were identified in 2002 from two

Carlos RV Kiffer; Eduardo CG Camargo; Silvia E Shimakura; Paulo J Ribeiro Jr; Trevor C Bailey; Antonio CC Pignatari; Antonio MV Monteiro

2011-01-01

207

Contexto sócio-econômico e percepção da saúde bucal em uma população de adultos no Rio de Janeiro, Brasil: uma análise multinível Socioeconomic context and perceived oral health in an adult population in Rio de Janeiro, Brazil: a multilevel analysis  

Microsoft Academic Search

One of the main limitations of the ecological design is aggregation bias. The problem can be addressed by designs that use small contex- tual hierarchical units with internal homoge- neity. This study aimed to compare different geographic data structures in order to explore contextual effects of socioeconomic variables on the odds of perceived poor oral health. The analyses were based

Wagner de Souza Tassinari; Antônio Ponce de León; Guilherme Loureiro Werneck; Eduardo Faerstein; Claudia S. Lopes; Dora Chor; Paulo Nadanovsky

2007-01-01

208

Retrospecto da politica nuclear no Brasil e perspectivas de utilizacao de pequenas centrais nucleares - PCNs - no sistema eletrico brasileiro. (Nuclear policy retrospection in Brazil and forecasting for using of small nuclear power plants - SNPs - in the Brazilian electric system).  

National Technical Information Service (NTIS)

This thesis highlights the nuclear energy perspectives to regain a prominent place in the world energy mix, as a competitive and safe energy source. Just considering the current international changes in the nuclear power features in the developed countrie...

E. M. Santos

1992-01-01

209

Planificacion linguistica y constitucion de un bloque regional: El caso del Mercosur (Argentina, Brasil, Paraguay y Uraguay) y de Chile (Language Planning and the Constitution of a Regional Bloc: The Case of Mercosur (Argentina, Brazil, Paraguay, and Uruguay) and Chile.  

ERIC Educational Resources Information Center

|The common market of the South is a new linguistic and cultural area. The resurgence of innermost identities within member states proves that Mercosur identity can neither be universal nor specific. The outcome of this quest for identity will depend on the ability to carefully handle an area of cultural diversity and a place of common allegiance…

Chareille, Samantha

2003-01-01

210

Distribuição espacial de populações de triatomíneos (Hemiptera: Reduviidae) em palmeiras da espécie Mauritia flexuosa no Distrito Federal, Brasil Spatial distribution of Triatominae populations (Hemiptera: Reduviidae) in Mauritia flexuosa palm trees in Federal District of Brazil  

Microsoft Academic Search

To determine and analyze the distribution of Triatominae sylvatic populations in the Federal District of Brazil, 150 Mauritia flexuosa palm trees were sampled in six veredas of different landscapes (sylvatic, rural and peri-urban) in the rainy season. Triatomines were morphologically identified and grouped by sex and nymphal stage and were examined to verify infection by Trypanosoma cruzi and Trypanosoma rangeli.

Rodrigo Gurgel-Gonçalves; Marco Antônio Duarte; Eduardo Dias Ramalho; Alexandre Ramlo; Torre Palma; Christine Agueda Romaña; César Augusto Cuba-Cuba

211

QUALIDADE DA ÁGUA DO RIBEIRÃO LA VRINHA NA REGIÃO ALTO RIO GRANDE - MG , BRASIL 1 Water quality on Lavrinha Stream in Alto Rio Grande region, Minas Gerais State, Brazil  

Microsoft Academic Search

The main purpose of this work was to study the surface water quality behavior, continuously throughout the time, at the headwater watershed of the Grande River, MG. The watershed drains into Grande River area of 687 ha and is enclosed by the Mantiqueira Mountains. The samples were collected at six points in Lavrinha Stream, main tributary of the watershed, from

Daniel Brasil Ferreira Pinto; Antônio Marciano da Silva; Carlos Rogério de Mello; Gilberto Coelho

212

Physiochemical characterisation of biomass burning plumes in Brazil during SAMBBA  

NASA Astrophysics Data System (ADS)

Biomass burning represents one of the largest sources of particulate matter to the atmosphere, which results in a significant perturbation to the Earth's radiative balance coupled with serious negative impacts on public health. Globally, biomass burning aerosols are thought to exert a small warming effect of 0.03 Wm-2, however the uncertainty is 4 times greater than the central estimate. On regional scales, the impact is substantially greater, particularly in areas such as the Amazon Basin where large, intense and frequent burning occurs on an annual basis for several months (usually from August-October). Furthermore, a growing number of people live within the Amazon region, which means that they are subject to the deleterious effects on their health from exposure to substantial volumes of polluted air. Results are presented here from the South American Biomass Burning Analysis (SAMBBA), which took place during September and October 2012 over Brazil. A suite of instrumentation was flown on-board the UK Facility for Airborne Atmospheric Measurement (FAAM) BAe-146 research aircraft. Measurements from the Aerodyne Aerosol Mass Spectrometer (AMS) and Single Particle Soot Photometer (SP2) form the major part of the analysis presented here. The aircraft sampled several fires in close proximity (approximately 150m above the most intense fires) in different areas of Brazil. This included two extensive areas of burning, which occurred in the states of Rondonia and Tocantins. The Rondonia fire was largely dominated by smouldering combustion of a huge single area of rainforest with a visible plume of smoke extending approximately 80km downwind. The Tocantins example contrasted with this as it was a collection of a large number of smaller fires, with flaming combustion being more prevalent. Furthermore, the burned area was largely made up of agricultural land in a cerrado (savannah-like) region of Brazil. Initial results suggest that the chemical nature of these fires differed markedly, with BC concentrations being an order of magnitude greater in the Tocantins case (up to 50 ?g m-3 of BC) compared with the Rondonia case (up to 5 ?g m-3 of BC). Organic matter (OM) concentrations were similar in both cases, with maximum concentrations peaking between 4-5 mg m-3. Such concentrations are approximately more than 100 times greater than those sampled in the "background" regional haze. This variation of BC to OM ratio has potentially large implications for the radiative balance in the respective regions, as BC represents the major absorbing component of biomass burning aerosol. Further analysis will compare the aerosol mass concentrations with gas phase species, as well as probing the chemical and physical evolution of the aerosol as it advects downwind and is diluted with regional air. In particular, such analyses will focus upon the aging of the organic aerosol component as well as examining how the mixing state of the BC particles evolves. Such properties have important implications for the life cycle and formation of particulate material, which governs its subsequent impacts.

Morgan, William; Allan, James; Flynn, Michael; Darbyshire, Eoghan; Hodgson, Amy; Johnson, Ben; Haywood, Jim; Longo, Karla; Artaxo, Paulo; Coe, Hugh

2013-04-01

213

BREVE HISTÓRICO DO USO DE SISTEMAS DE INFORMAÇÕES GERENCIAIS APLICADOS A EMPRESAS RURAIS  

Microsoft Academic Search

Nas últimas décadas o Brasil tem confirmado seu importante papel na produção agrícola mundial. Apoiando esta posição encontra-se a utilização da informática pelas empresas rurais e o destaque para a utilização dos sistemas de informações gerenciais (SIGs). O objetivo deste artigo foi reunir e discutir informações sobre alguns fatos da história do desenvolvimento da agroinformática no Brasil enfocando-se a participação

Henri Cocaro; Jose Carlos dos Santos Jesus

2008-01-01

214

SAFEGUARDS IN LATIN AMERICAN COUNTRIES: THE ROLE OF ABACC  

Microsoft Academic Search

A Agência Brasileiro-Argentina de Contabilidade e Controle de Materiais Nucleares (ABACC), desde sua criação em 1991, é responsável pela aplicação do Acordo de Uso Exclusivamente Pacífico da Energia Nuclear, assinado por Brasil e Argentina, e pela coordenação do Acordo Quadripartito entre a AIEA, ABACC, Brasil e Argentina. Ao longo dos últimos 16 anos a ABACC vem tendo uma participação importante

Orpet J. M. Peixoto; Antonio A. Oliveira

215

Continental-scale models of water balance and fluvial transport: An application to South America  

NASA Astrophysics Data System (ADS)

A coupled water balance and water transport model (WBM / WTM) was constructed as part of a larger study of global biogeochemistry. The WBM / WTM provides critical hydrologic information to models of terrestrial primary production, organic matter decay, riverine nutrient flux and trace gas exchanges with the troposphere. Specifically, it creates high-resolution data sets for monthly soil moisture, evapotranspiration, runoff, river discharge and floodplain inundation. As a first step toward eventual global coverage, the WBM / WTM was applied to South America, represented by more than 5700 1/2° (latitude / longitude) grid cells. The WBM transforms spatially complex data on long-term climate, vegetation, soils and topography into predictions of soil moisture (SM), evapotranspiration (ET) and runoff (RO). For South America, field capacity in soils ranged from 27 to 582 mm of water, and computed values for mean annual SM, ET and RO were 284 mm, 1059 mm/yr and 619 mm/yr, respectively. There were large differences regionally and over the year. The transport model uses WBM-derived runoff, information on fluvial topology, linear transfer through river channels and a simple representation of floodplain inundation to generate monthly discharge estimates for any cell within a simulated catchment. The WTM successfully determined the timing and magnitude of discharge at selected locations within the Amazon / Tocantins basin. It also demonstrated the importance of floodplain inundation in defining flow regime on the mainstem Amazon. Estimated mean annual discharge was 207,000 m3/s for the Amazon River and 17,000 m3/s for the Tocantins. In these basins, 45% of the incident precipitation emerges as river flow; 55% is lost to ET. The model described in this paper will be expanded to include the dynamics of carbon, major nutrients and sediments. It will serve as a semimechanistic tool to quantify the transport of materials from the landscape to the world's oceans. Such a capability becomes increasingly important as we seek to understand the impacts of climate and land use change on major river systems of the globe.

VöRöSmarty, Charles J.; Moore, Berrien; Grace, Annette L.; Gildea, M. Patricia; Melillo, Jerry M.; Peterson, Bruce J.; Rastetter, Edward B.; Steudler, Paul A.

1989-09-01

216

Biomass burning emissions of reactive gases estimated from satellite data analysis and ecosystem modeling for the Brazilian Amazon region  

NASA Astrophysics Data System (ADS)

To produce a new daily record of trace gas emissions from biomass burning events for the Brazilian Legal Amazon, we have combined satellite advanced very high resolution radiometer (AVHRR) data on fire counts together for the first time with vegetation greenness imagery as inputs to an ecosystem biomass model at 8 km spatial resolution. This analysis goes beyond previous estimates for reactive gas emissions from Amazon fires, owing to a more detailed geographic distribution estimate of vegetation biomass, coupled with daily fire activity for the region (original 1 km resolution), and inclusion of fire effects in extensive areas of the Legal Amazon (defined as the Brazilian states of Acre, Amapá, Amazonas, Maranhao, Mato Grosso, Pará, Rondônia, Roraima, and Tocantins) covered by open woodland, secondary forests, savanna, and pasture vegetation. Results from our emissions model indicate that annual emissions from Amazon deforestation and biomass burning in the early 1990s total to 102 Tg yr-1 carbon monoxide (CO) and 3.5 Tg yr-1 nitrogen oxides (NOx). Peak daily burning emissions, which occurred in early September 1992, were estimated at slightly more than 3 Tg d-1for CO and 0.1 Tg d-1for NOx flux to the atmosphere. Other burning source fluxes of gases with relatively high emission factors are reported, including methane (CH4), nonmethane hydrocarbons (NMHC), and sulfur dioxide (SO2), in addition to total particulate matter (TPM). We estimate the Brazilian Amazon region to be a source of between one fifth and one third for each of these global emission fluxes to the atmosphere. The regional distribution of burning emissions appears to be highest in the Brazilian states of Maranhao and Tocantins, mainly from burning outside of moist forest areas, and in Pará and Mato Grosso, where we identify important contributions from primary forest cutting and burning. These new daily emission estimates of reactive gases from biomass burning fluxes are designed to be used as detailed spatial and temporal inputs to computer models and data analysis of tropospheric chemistry over the tropical region.

Potter, Christopher; Brooks-Genovese, Vanessa; Klooster, Steven; Torregrosa, Alicia

2002-10-01

217

Diet, reproduction and population structure of the introduced Amazonian fish Cichla piquiti (Perciformes: Cichlidae) in the Cachoeira Dourada reservoir (Paranaíba River, central Brazil).  

PubMed

The Blue Peacock Bass (Cichla piquiti), native to the Tocantins-Araguaia river basin of the Amazon system, was introduced into the basin of the Paranaíba River, Paraná River system. Cachoeira Dourada reservoir is one of a series of dams on the Paranaíba River in central Brazil, where this fish has become established. A study of its feeding spectrum, combined with information about its reproductive characteristics and population structure, would enable the current state of this species in the reservoir to be assessed and might provide useful data for the management of other species native to this habitat. This study showed that the peacock bass has no predators or natural competitors in the reservoir and that reproduces continuously, with high reproductive rates, and has a smaller median length at first maturity (L50) than other species of Cichla. Its successful establishment in habitats strongly affected by human activity should cause changes in the whole structure of the local fish communities. Nonetheless, in this reservoir, there appears to be some sharing of the functions of this species with native carnivorous fish, a situation that may be sustained by the presence of a wide variety of foraging fish. PMID:21717855

Luiz, Tatiane Ferraz; Velludo, Marcela Roquetti; Peret, Alberto Carvalho; Rodrigues Filho, Jorge Luiz; Peret, André Moldenhauer

2011-06-01

218

Cervical cancer mortality trends in Brazil: 1980-2009.  

PubMed

The objective was to describe time trends in cervical cancer mortality rates in Brazil as a whole and in the country's major geographic regions and States from 1980 to 2009. This was an ecological time series study using data recorded in the Mortality Information System (SIM) and census data collected by the Brazilian Institute of Geography and Statistics (IBGE). Analysis of mortality trends was performed using Poisson regression. Cervical cancer mortality rates in Brazil tended to stabilize. In the geographic regions, a downward trend was observed in the South (-4.1%), Southeast (-3.3%), and Central-West (-1%) and an upward trend in the Northeast (3.5%) and North (2.7%). The largest decreases were observed in the States of São Paulo (-5.1%), Rio Grande do Sul, Espírito Santo, and Paraná (-4.0%). The largest increases in mortality trends occurred in Paraíba (12.4%), Maranhão (9.8%), and Tocantins (8.9%). Cervical cancer mortality rates stabilized in the country as a whole, but there was a downward trend in three geographic regions and 10 States, while two geographic regions and another 10 States showed increasing rates. PMID:23532294

Gonzaga, Carolina Maciel Reis; Freitas-Junior, Ruffo; Barbaresco, Aline Almeida; Martins, Edesio; Bernardes, Bruno Teixeira; Resende, Ana Paula Magalhães

2013-03-01

219

Impacts of hydroelectric dams on alluvial riparian plant communities in Eastern Brazilian Amazonian.  

PubMed

The major rivers of the Amazon River basin and their biota are threatened by the planned construction of large hydroelectric dams that are expected to have strong impacts on floodplain plant communities. The present study presents forest inventories from three floodplain sites colonized by alluvial riparian vegetation in the Tapajós, Xingu and Tocantins River basins in eastern Amazonian. Results indicate that tree species of the highly specialized alluvial riparian vegetation are clearly distinct among the three river basins, although they are not very distinct from each other and environmental constraints are very similar. With only 6 of 74 species occurring in all three inventories, most tree and shrub species are restricted to only one of the rivers, indicating a high degree of local distribution. Different species occupy similar environmental niches, making these fragile riparian formations highly valuable. Conservation plans must consider species complementarily when decisions are made on where to place floodplain forest conservation units to avoid the irreversible loss of unique alluvial riparian vegetation biodiversity. PMID:24068089

Ferreira, Leandro Valle; Cunha, Denise A; Chaves, Priscilla P; Matos, Darley C L; Parolin, Pia

2013-09-01

220

Cytogenetic comparison of Podocnemis expansa and Podocnemis unifilis: A case of inversion and duplication involving constitutive heterochromatin  

PubMed Central

Podocnemis expansa and P. unifilis present 2n = 28 chromosomes, a diploid number similar to those observed in other species of the genus. The aim of this study was to characterize these two species using conventional staining and differential CBG-, GTG and Ag-NOR banding. We analyzed specimens of P. expansa and P. unifilis from the state of Tocantins (Brazil), in which we found a 2n = 28 and karyotypes differing in the morphology of the 13th pair, which was submetacentric in P. expansa and telocentric in P. unifilis. The CBG-banding patterns revealed a heterochromatic block in the short arm of pair 13 of P. expansa and an interstitial one in pair 13 of P. unifilis, suggesting a pericentric inversion. Pair 14 of P. unifilis showed an insterstitial band in the long arm that was absent in P. expansa, suggesting a duplication in this region. Ag-NORs were observed in the first chromosome pair of both species and was associated to a secondary constriction and heterochromatic blocks.

Gunski, Ricardo Jose; Cunha, Isabel Souza; Degrandi, Tiago Marafiga; Ledesma, Mario; Garnero, Analia Del Valle

2013-01-01

221

[Physical disabilities in leprosy patients after discharge from multidrug therapy in Northern Brazil].  

PubMed

Chronic sequelae and disabilities are one of the main problems in leprosy. The current study aimed to estimate the prevalence of disabilities in leprosy patients after successfully completing multidrug therapy in Araguaína, Tocantins State, Brazil. This was a cross-sectional study including 282 cases diagnosed from 2004 to 2009. The degrees of disability at diagnosis and at discharge from treatment were collected from medical records and the National Information System for Notifiable Diseases (SINAN). A simplified neurological workup was performed after discharge from treatment. The prevalence of disabilities at diagnosis was 29.4%, and 8.9% of then was grade II. Between diagnosis and discharge, the degree of physical disability worsened in 25% of cases. At diagnosis, the proportion of deformities was significantly higher in men (RR = 1.7; 95%CI: 1.23-2.37). There was a significant association between disability and multibacillary disease (p < 0.001) and occurrence of reactions (p < 0.001). The data show that after discharge from multidrug therapy, in order to prevent chronic sequelae and functional limitations, continuous monitoring is still needed for individuals that have been recorded as cured and thus deleted from the records. PMID:23702997

Monteiro, Lorena Dias; Alencar, Carlos Henrique Morais de; Barbosa, Jaqueline Caracas; Braga, Katiane Pereira; Castro, Milene Damous de; Heukelbach, Jorg

2013-05-01

222

Infestation of Mauritia flexuosa palms by triatomines (Hemiptera: Reduviidae), vectors of Trypanosoma cruzi and Trypanosoma rangeli in the Brazilian savanna.  

PubMed

To determine the infestation and trypanosome infection of triatomines captured in Mauritia flexuosa palm trees across its geographic distribution in the Brazilian savanna (Cerrado), we sampled 42 localities in eight states and in the Federal District, Brazil, between July 2005 and January 2010. Overall, 2154 specimens of the species Rhodnius neglectus, Psammolestes tertius, Triatoma sordida, and Microtriatoma borbai, were collected. Among the 341 palms sampled, 182 (53.3%) were infested with R. neglectus, which resulted in the capture of 1639 specimens (9.0 insects per infested palm). P. tertius occurred in 26 palms (8%), which resulted in the capture of 484 specimens (19 insects per infested palm). T. sordida (n=30) and M. borbai (n=1) occurred in only one location. From 537 R. neglectus examined, 44 were infected (8%) with Trypanosoma rangeli and/or Trypanosoma cruzi (Tc Id). M. flexuosa was previously recognized as a suitable breeding ecotope for R. neglectus in the Brazilian states of Minas Gerais, Goiás, Tocantins and the Federal District. Our results expand this distribution to other states (São Paulo, Bahia, Mato Grosso, Maranhão and Piauí), and also show that this particular palm tree harbors other triatomine species. Finally, we show that R. neglectus plays an important role in maintaining the enzootic circulation of T. cruzi and T. rangeli in the Brazilian savanna. PMID:22037200

Gurgel-Gonçalves, Rodrigo; Cura, Carolina; Schijman, Alejandro G; Cuba, César A Cuba

2011-10-20

223

Analysis of water level variations in Brazilian basins using GRACE  

NASA Astrophysics Data System (ADS)

A comparison between daily in-situ water level time series measured at ground-based hydrometric stations (HS - 1,899 stations located in twelve Brazilian basins) of the Agência Nacional de Águas (ANA) with vertically-integrated water height anomaly deduced from the Gravity Recovery and Climate Experiment (GRACE) geoid is carried out in Brazil. The equivalent water height (EWH) of 10-day intervals of GRACE models were computed by GRGS/CNES. It is a 6-year analysis (July-2002 to May-2008). The coefficient of determination is computed between the ANA water level and GRACE EWH. Values higher than 0.6 were detected in the following basins: Amazon, north of Paraguay, Tocantins-Araguaia, Western North-East Atlantic and north of the Parnaíba. In the Uruguay (Pampas region) and the west of São Francisco basins, the coefficient of determination is around 0.5 and 0.6. These results were adjusted with a linear transfer function and two second degree polynomials (flood and ebb period) between GRACE EWH and ANA water level. The behavior of these two polynomials is related to the phase difference of the two time series and yielded four different types of responses. This paper shows seven ANA stations that represent these responses and relates them with their hydro-geological domain.

Matos, A.; Blitzkow, D.; Almeida, F.; Costa, S.; Campos, I.; Barbosa, A.

2012-01-01

224

Neoproterozoic granites of the Lajeado intrusive suite, north-center Brazil: A late Ediacaran remelting of a Paleoproterozoic crust  

NASA Astrophysics Data System (ADS)

In north-central Brazil, a number of granite plutons, which intrude Paleoproterozoic gneiss-granulite terrains of the Goiás Massif, crop out along a thermal axis parallel to the Transbrasiliano Lineament. Single zircon lead evaporation ages from three granitic bodies span between 552 and 545 Ma. Sm-Nd model ages (TDM) vary between 2.1 and 1.7 Ga and negative ?Nd(0.55 Ga) values between -10 and -13 show that Paleoproterozoic crust was involved in the genesis of these granites. These plutons, which form the Lajeado Intrusive Suite are part of an important Ediacaran magmatic event in central-northern of the Tocantins Tectonic Province, composed of metaluminous to slightly peraluminous granites with geochemical characteristics similar to A-type granites, whose crystallization occurred under low water activity during magmatic emplacement. The granitic intrusive bodies are related to a crustal extensional/transtensional tectonic event at the end of the Neoproterozoic. They may have connection with the granitic plutons of similar age (0.56-0.52 Ga) in northwestern Ceará state, on the other side of the Paleozoic Parnaíba Basin in northwest of Borborema Province, along the Transbrasiliano Lineament.

de Sousa Gorayeb, Paulo Sergio; Chaves, César Lisboa; Moura, Candido Augusto Veloso; da Silva Lobo, Luciano Ricardo

2013-08-01

225

Uvá complex, the oldest orthogneisses of the Archean-Paleoproterozoic terrane of central Brazil  

NASA Astrophysics Data System (ADS)

The Archean-Paleoproterozoic terrane of central Brazil is an exotic and allochthonous part of the Tocantins Province, a large Brasiliano/Pan-African orogen of the South American Platform formed during the Brasiliano orogeny. The terrane amalgamated to the province during the late stages of the orogeny as a crustal segment consisting of six Archean orthogneiss complexes and five low-grade metamorphic, in part Paleoproterozoic (Rhyacian) greenstone belts. The Uvá complex is the southernmost orthogneiss association of the Archean-Paleoproterozoic terrane of central Brazil. New U-Pb LA-ICP-MS data from zircon crystals show that the complex formed at least during two magmatic stages. The older consists of polydeformed tonalite and granodiorite batholitic and diorite stock protoliths with igneous age of 3040 Ma to 2930 Ma. The youngest comprises tonalite, monzogranite and granodiorite tabular bodies formed between 2876 and 2846 Ma. As compared to the orthogneisses of the northern portion of the terrane, both the oldest and youngest granitogenesis stages of the Uvá complex are, in average, about 150 Ma older. This suggests that the northern and southern orthogneisses formed during different times as independent crustal segments, but when and why they amalgamated is still under investigation.

Jost, Hardy; Junior, Farid Chemale; Fuck, Reinhardt Adolfo; Dussin, Ivo Antônio

2013-11-01

226

Exotic Nuclei in South America  

NASA Astrophysics Data System (ADS)

The Radioactive Ion Beams in Brasil (RIBRAS) is described. Experiments using radioactive secondary beams of light rare isotopes such as 6He, 7Be, 8Li on several targets have been performed and the results are presented.

Lichtenthäler, R.; Lépine-Szily, A.; Guimara~Es, V.; de Faria, P. N.; Mendes, D. R.; Pires, K. C. C.; Morcelle, V.; Barioni, A.; Morais, M. C.; Pampa Condori, R.; Assunça~O, M.; Moro, A. M.; Rodríguez-Gallardo, M.; Arazi, A.

2010-08-01

227

Alguns efeitos das radiacoes gama do Cobalto-60 em Chrysomya megacephala (Fabricius, 1794) (Diptera-Calliphoridae). (Some gamma radiation ((60)Co) effects on Chrysomya megacephala (Fabricius, 1794) (Diptira-Calliphoridae)).  

National Technical Information Service (NTIS)

The effect of different gama radiation ((sup 60)Co) doses on Chrysomya megcephala (Fabricius) have been studied under laboratory conditions, in the Entomology Section of Centro de Energia Nuclear na Agricultura (CENA-USP), Piracicaba, SP, Brasil. The inse...

C. R. Garcia

1987-01-01

228

Prevalence of hereditary factors predisposing to thrombosis in 260 patients diagnosed as thrombosis and investigated at Hospital Israelita Albert Einstein, São Paulo, Brazil Prevalência de fatores hereditários que predispõem à trombose em 260 pacientes com diagnóstico de trombose e investigados no Hospital Israelita Albert Einstein, São Paulo, Brasil  

Microsoft Academic Search

Objective: To evaluate the prevalence of genetic polymorphism in coagulation factors in thromboembolic disease in patients with clinical suspicion of thrombosis. Methods: A retrospective case collection was performed searching all patients with clinical suspicion of thrombosis who were submitted to coagulation factor analysis at the Hospital Israelita Albert Einstein from November 2003 to April 2004. We included 260 patients, 118

Campos Guerra; Marden Rene Ferreira; Claudio Albers Mendes; Valdir Aranda

229

Parametros energeticos na elaboracao de programa de irrigacao para o distrito de Santa Terezinha, Mato Grosso do Sul, Brasil. (Energetic parameters to be considered in the preparation of irrigation programs for the district of Santa Terezinha, Mato Grosso do Sul state, Brazil).  

National Technical Information Service (NTIS)

In the elaboration of irrigation programs the characteristics of the region should be considered in order to identify the factors related to the local infrastructure, hydric resources and of the soils of the region and their interaction with the rural pro...

C. B. Alves

1990-01-01

231

Material properties for reactor pressure vessels and containment shells under dynamic loading 1 This paper was presented at the 13th International Conference on Strucural Mechanics in Reactor Technology, Post Conference Seminar No. 4 on Containment Facilities, Universidade de Brasilia, Brasilia, DF, Brasil, 21st–22nd August, 1995. 1  

Microsoft Academic Search

The effects of high strain rate, dynamic biaxial loading and deformation mode (tension, shear) on the mechanical properties of AISI 316 austenitic stainless steel in as-received and pre-damaged (creep, LCF) conditions are reported. This research was conducted to assess the performances of the containment shell of fast breeder reactors. The results of this research have been utilized to prepare similar

Carlo Albertini

1997-01-01

232

AvaliaÁªo da contaminaÁªo mercurial mediante anÆlise do teor de Hg total em amostras de cabelo em comunidades ribeirinhas do TapajÛs, ParÆ, Brasil Total mercury in hair samples of inhabitants of TapajÛs river, ParÆ State, Brazil  

Microsoft Academic Search

1 Resumo Este estudo avalia a contaminação mercurial em comunidades de pescadores em quatro localidades nas margens do rio Tapajós: Rainha, Barreiras, São Luís do Tapajós e Paraná- Mirim. Análises toxocológicas das amostras de cabelo foram realizadas por espectofotometria de absorção atômica. Os níveis de mercúrio total em amostras de cabelo variaram entre 2,9µg\\/g e 71,5µg\\/g. Os valores mais baixos

Junko Nakanishi; Teiichi Oikawa; José Luiz Vieira; Manoel Quaresma; Bernardo Cardoso; Walter Amoras

233

AVALIAÇÃO DE ASPECTOS POLÍTICO-INSTITUCIONAIS E ECONÔMICO- FINANCEIROS DO SETOR DE SANEAMENTO NO BRASIL COM VISTAS À DEFINIÇÃO DE ELEMENTOS PARA UM MODELO CONCEITUAL EVALUATION OF POLITICAL, INSTITUCIONAL, ECONOMIC AND FINANCIAL ASPECTS OF THE SANITARY SECTOR IN BRAZIL IN ORDER TO DEFINE ELEMENTS FOR A CONCEPTUAL MODEL  

Microsoft Academic Search

The main objective of this paper is the definition of water supply and sanitation determinant elements to be included in a conceptual model. Because political and institutional arrangements and economic and financial conditions of the water sector have a great influence on planning and actions implementation, those aspects were considered as elements to compose and construct parts of this model.

SÉRGIO R. AYRIMORAES SOARES; OSCAR DE M. CORDEIRO; RICARDO S. BERNARDES

234

A Study of the Dynamics of Droughts in Northern Brazil: Observations, Theory, and Numerical Experiments with a Global Atmospheric Circulation Model Um Estudo Sobre a Dinamica das Secas Do Nordes Te Do Brasil: Observacoes, Teoria E Experimentos Numericos COM Um Modelo Global de Circulacao Atmosferica.  

National Technical Information Service (NTIS)

The monthly mean sea surface temperature anomalies over tropical Altantic and rainfall anomalies over two selected stations for 25 years (1948-1972) were examined. It is found that the most severe drought events are associated with the simultaneous occurr...

A. D. Moura J. Shukla

1980-01-01

235

Da mãe África aos filhos Brasil: expressão da herança genética para a anemia falciforme em estudantes do curso de farmácia da Universidade Federal do Piauí The mother africa children Brazil: expression of genetic inheritance for sickle cell anemia in students of pharmacy at the Federal University of Piauí  

Microsoft Academic Search

SUMMARY - Hereditary illness of bigger prevalence in the world and Brazil, the sickle cell already is considered a problem of public health. Characterized for homozigose of the gene of the sickle hemoglobin, it causes a gamma of signals and symptoms that demands integral attention to the patient. The sickle trace is characterized by heterozigose of the gene of the

Leonardo Ferreira Soares; Bernardo Melo Neto; Rafael Pires Veloso

2009-01-01

236

Organofosforados e carbamatos no leite produzido em quatro regiões leiteiras no Brasil: ocorrência e ação sobre Listeria monocytogenes e Salmonella spp. Organophosphates and carbamates in milk produced in four milk producing regions from Brazil: occurrence and activity against Listeria monocytogenes and Salmonella spp  

Microsoft Academic Search

Chemical residues may be present in foods due to contamination in early stages of production, posing a potential risk to consumers. Organophosphates and carbamates are used in the control of parasites in animals and may generate residues in foods derived from these animals, like milk. This study aimed to survey the presence of these two pesticides in raw milk samples

Luís Augusto NERO; Marcos Rodrigues de MATTOS; Vanerli BELOTI; Márcia Aguiar; Ferreira BARROS; Daisy PONTES NETTO; Bernadette Dora; Gombossy de Melo

237

Formacion de Formadores en Planeamiento y Administracion de la Education: Informe Final. Reunion Tecnica de la Red REPLAD, Campinas, Sao Paulo, Brasil, 9-13 de noviembre de 1987. (Educational Development of Professionals in Educational Planning and Administration: Final Report. Proceedings of the Meeting of the Major Project for Education (Sao Paulo, Brazil, November 9-13, 1987).  

ERIC Educational Resources Information Center

|This final report provides a synthesis of conference presentations by representatives from institutions in 17 Latin American and the Caribbean nations. The material includes descriptions about institutions of higher education planning and developing of their respective schools of education, ministries of education, and national and regional…

United Nations Educational, Scientific, and Cultural Organization, Santiago (Chile). Regional Office for Education in Latin America and the Caribbean.

238

Incidence and transplacental transmission of Neospora caninum in primiparous females from Bos indicus slaughtered in Presidente Prudente, São Paulo, Brazil Incidência e transmissão transplacentária de Neospora caninum em fêmeas primíparas da raça Bos indicus abatidos em Presidente Prudente, São Paulo, Brasil  

Microsoft Academic Search

To produce an epidemiological map of neosporosis in Brazil and identify the types of transmission of this disease, the present study evaluated the occurrence of Neospora caninum in Nelore cattle (Bos indicus) in Presidente Prudent, west region of Sao Paulo state; its vertical transmission; and the early stage in which fetuses are infected. To achieve this, serum samples from 518

Liria Hiromi Okuda; Clarice Neves Camargo; Nascimento Kronka

239

Patterns of water and heat flux across a biome gradient from tropical forest to savanna in Brazil  

NASA Astrophysics Data System (ADS)

We investigated the seasonal patterns of water vapor and sensible heat flux along a tropical biome gradient from forest to savanna. We analyzed data from a network of flux towers in Brazil that were operated within the Large-Scale Biosphere-Atmosphere Experiment in Amazonia (LBA). These tower sites included tropical humid and semideciduous forest, transitional forest, floodplain (with physiognomies of cerrado), and cerrado sensu stricto. The mean annual sensible heat flux at all sites ranged from 20 to 38 Wm-2, and was generally reduced in the wet season and increased in the late dry season, coincident with seasonal variations of net radiation and soil moisture. The sites were easily divisible into two functional groups based on the seasonality of evaporation: tropical forest and savanna. At sites with an annual precipitation above 1900 mm and a dry season length less than 4 months (Manaus, Santarem and Rondonia), evaporation rates increased in the dry season, coincident with increased radiation. Evaporation rates were as high as 4.0 mm d-1 in these evergreen or semidecidous forests. In contrast, ecosystems with precipitation less than 1700 mm and a longer dry season (Mato Grosso, Tocantins and São Paulo) showed clear evidence of reduced evaporation in the dry season. Evaporation rates were as low as 2.5 mm d-1 in the transitional forests and 1 mm d-1 in the cerrado. The controls on evapotranspiration seasonality changed along the biome gradient, with evaporative demand (especially net radiation) playing a more important role in the wetter forests, and soil moisture playing a more important role in the drier savannah sites.

da Rocha, Humberto R.; Manzi, Antonio O.; Cabral, Osvaldo M.; Miller, Scott D.; Goulden, Michael L.; Saleska, Scott R.; R.-Coupe, Natalia; Wofsy, Steven C.; Borma, Laura S.; Artaxo, P.; Vourlitis, George; Nogueira, José S.; Cardoso, Fernando L.; Nobre, Antonio D.; Kruijt, Bart; Freitas, Helber C.; von Randow, Celso; Aguiar, Renata G.; Maia, Jair F.

2009-01-01

240

Evapotranspiration  

NASA Astrophysics Data System (ADS)

We review the measurements of latent and sensible heat flux made at seven flux tower sites during the Large-Scale Biosphere-Atmosphere Experiment for tropical humid, transitional and semideciduous forests, floodplain (with cerrado), and cerrado ecosystems. Measurements over farmlands in Amazonia vary from 1.2 (for bare soil) to 3 mm d-1, with a reduction in the dry season. Estimates of evapotranspiration for Amazonia based on atmospheric reanalysis are generally higher than the measurements. Remarkably, for all the seven sites, the mean annual sensible heat flux ranged from 20 to 38 W m-2, lower during the wet season and higher in the late dry season, consistent with the variation of net radiation and soil moisture. Based on the seasonal evapotranspiration, the sites are divided into two functional groups: tropical forest and savanna. At the northern sites (Manaus, Santarém), precipitation is above 1900 mm a-1, monthly evapotranspiration is fairly constant during the wet season, ranges from 2.8 to 3.6 mm d-1, progressively increases along the dry season up to 4 mm d-1, and is dominated by net radiation and vapor density deficit. The western semideciduous forest in Rondônia presents similarities with the forest group, with monthly evapotranspiration that varies little but concurrent with net radiation year round, and peaks more exactly in the dry-to-wet season transition. At the southern and eastern sites, precipitation is below 1700 mm a-1, seasonal evapotranspiration is limited by soil moisture, ranges from 3 to 4 mm d-1 in the wet season, and decreases in the dry season to 2.5 mm d-1 in the transitional forest (Mato Grosso) and floodplain (Tocantins), and to 1 mm d-1 in the São Paulo cerrado.

da Rocha, Humberto R.; Manzi, Antonio O.; Shuttleworth, Jim

241

Patterns of water and heat flux across a biome gradient from tropical forest to savanna in Brazil  

NASA Astrophysics Data System (ADS)

We investigated the seasonal patterns of water vapor and sensible heat flux along a tropical biome gradient from forest to savanna. We analyzed data from a network of flux towers in Brazil that were operated within the Large-Scale Biosphere-Atmosphere Experiment in Amazonia (LBA). These tower sites included tropical humid and semideciduous forest, transitional forest, floodplain (with physiognomies of cerrado), and cerrado sensu stricto. The mean annual sensible heat flux at all sites ranged from 20 to 38 Wm-2, and was generally reduced in the wet season and increased in the late dry season, coincident with seasonal variations of net radiation and soil moisture. The sites were easily divisible into two functional groups based on the seasonality of evaporation: tropical forest and savanna. At sites with an annual precipitation above 1900 mm and a dry season length less than 4 months (Manaus, Santarem and Rondonia), evaporation rates increased in the dry season, coincident with increased radiation. Evaporation rates were as high as 4.0 mm d-1 in these evergreen or semidecidous forests. In contrast, ecosystems with precipitation less than 1700 mm and a longer dry season (Mato Grosso, Tocantins and São Paulo) showed clear evidence of reduced evaporation in the dry season. Evaporation rates were as low as 2.5 mm d-1 in the transitional forests and 1 mm d-1 in the cerrado. The controls on evapotranspiration seasonality changed along the biome gradient, with evaporative demand (especially net radiation) playing a more important role in the wetter forests, and soil moisture playing a more important role in the drier savannah sites.

Da Rocha, Humberto R.; Manzi, Antonio O.; Cabral, Osvaldo M.; Miller, Scott D.; Goulden, Michael L.; Saleska, Scott R.; Coupe, Natalia R.; Wofsy, Steven C.; Borma, Laura S.; Artaxo, P.; Vourlitis, George; Nogueira, José S.; Cardoso, Fernando L.; Nobre, Antonio D.; Kruijt, Bart; Freitas, Helber C.; von Randow, Celso; Aguiar, Renata G.; Maia, Jair F.

2009-03-01

242

Polyspecific associations between squirrel monkeys (Saimiri sciureus) and other primates in eastern Amazonia.  

PubMed

One of the most common types of polyspecific association observed in Neotropical primate communities is that between squirrel monkeys (Saimiri) and capuchins (Cebus). The present study focused on association patterns in two Saimiri sciureus groups in eastern Brazilian Amazonia, between March and October, 2009. The associations were analyzed in terms of the species involved, the degree of association, and niche breadth and overlap. The study involved two S. sciureus groups (B4 and GI) on the right and left bank of the Tocantins River, respectively, within the area of the Tucuruí reservoir in southeastern Pará. Relations between species were classified as associations (individuals within 50 m and moving in the same direction), and encounters (individuals within 50 m and no coordinated movement). Group B4 was in association with Cebus apella during 100% of monitoring, and with Chiropotes satanas in 20.2%. By contrast, Group GI associated with Cebus 54.8% of the time, and with Chiropotes utahickae 2.5%. Encounters with Alouatta belzebul and Saguinus niger were recorded at both sites, with Aotus azarae and Dasyprocta prymnolopha at B4, and with Callicebus moloch, Dasyproct aleporina, Mazama gouazoubira, and Nasua nasua at GI. Overall, Saimiri had a broader niche than Cebus in terms of vertical spacing and diet, but not for substrate use. This pattern did not appear to be affected by association. While group GI spent significantly (P < 0.05) more time in association with Cebus during the wet season, group B4 associated with Chiropotes more during the dry season. Despite the higher association rates, niche overlap was greater for all variables at B4. This may reflect differences in the ranging and foraging patterns at the two sites, and the varying potential benefits of association for Saimiri. PMID:21809365

Pinheiro, Tatyana; Ferrari, Stephen F; Lopes, Maria Aparecida

2011-08-01

243

[Human exposure to mercury in the Brazilian Amazon: a historical perspective].  

PubMed

The objective of the present article was to present the most important data generated by a multicentric study carried out by Brazilian researchers who, with the support of national and international institutions, worked during the 1990s to describe human exposure to mercury in gold mining areas in the Brazilian Amazon. Three sets of procedures were followed with residents of the Tocantins and Xingu river basins: (1) clinical examination, based on a standardized protocol and performed by a single researcher, in order to identify five basic levels of contamination; (2) determination of mercury levels in blood, hair, and urine, using atomic absorption spectrophotometry (Xingu Project); and (3) investigation of genotoxicity by using four cytogenetic indicators. During the first stage, 41 individuals were studied. Mercury was found in miners and their family members. Contamination was significantly associated with occupation and showed a differential correlation with genotoxicity indicators. After that, the Xingu project, which encompassed 625 individuals, focused on 417 Kayapó natives from the Gorotire and Djudjetiktire villages; 142 miners; and 66 riverine individuals (ribeirinhos). The highest levels of methylmercury in hair and total mercury in blood and urine were found among the Indian population. Contamination with inorganic forms of mercury was also observed in the blood, hair, and urine of Indians. Following a specific recommendation from the World Health Organization, special attention was given to pregnant Gorotire and Djudjetiktire women, who, although not directly exposed to mercury vapors, showed considerable levels of mercury intoxication. Despite this worrisome scenario, a number of social achievements in the 1990s point to new standards of dignity in health care and of social ethics in Brazil that could benefit everyone, including the victims of environmental injury. PMID:15673484

Gonçalves, Aguinaldo; Gonçalves, Neusa Nunes da Silva e

2004-12-01

244

Upper-mantle seismic structure beneath SE and Central Brazil from P- and S-wave regional traveltime tomography  

NASA Astrophysics Data System (ADS)

We present models for the upper-mantle velocity structure beneath SE and Central Brazil using independent tomographic inversions of P- and S-wave relative arrival-time residuals (including core phases) from teleseismic earthquakes. The events were recorded by a total of 92 stations deployed through different projects, institutions and time periods during the years 1992-2004. Our results show correlations with the main tectonic structures and reveal new anomalies not yet observed in previous works. All interpretations are based on robust anomalies, which appear in the different inversions for P- and S-waves. The resolution is variable through our study volume and has been analyzed through different theoretical test inversions. High-velocity anomalies are observed in the western portion of the São Francisco Craton, supporting the hypothesis that this Craton was part of a major Neoproterozoic plate (San Franciscan Plate). Low-velocity anomalies beneath the Tocantins Province (mainly fold belts between the Amazon and São Francisco Cratons) are interpreted as due to lithospheric thinning, which is consistent with the good correlation between intraplate seismicity and low-velocity anomalies in this region. Our results show that the basement of the Paraná Basin is formed by several blocks, separated by suture zones, according to model of Milani & Ramos. The slab of the Nazca Plate can be observed as a high-velocity anomaly beneath the Paraná Basin, between the depths of 700 and 1200 km. Further, we confirm the low-velocity anomaly in the NE area of the Paraná Basin which has been interpreted by VanDecar et al. as a fossil conduct of the Tristan da Cunha Plume related to the Paraná flood basalt eruptions during the opening of the South Atlantic.

Rocha, Marcelo Peres; Schimmel, Martin; Assumpção, Marcelo

2011-01-01

245

Comparative parasitism of the fish Plagioscion squamosissimus in native and invaded river basins.  

PubMed

Biological invasions are considered a major threat to biodiversity around the world, but the role of parasites in this process is still little investigated. Here, we compared parasite infections of a host species in the areas where it originated and where it was introduced, and in native and introduced species in the same environment, using the endoparasites of the fish Plagioscion squamosissimus (Sciaenidae) in 3 Brazilian basins. Samples were taken in 2 rivers where the species is native, i.e., Solimões River (SO) and Tocantins River (TO), and where the species was introduced, the upper Paraná River (PR). In addition, abundances of diplostomids and larval nematodes were compared between P. squamosissimus and 2 native competitors in the PR, Hoplias malabaricus and Raphiodon vulpinus. In total, 13 species of endoparasites were recorded, but only Austrodiplostomum sp. and cestode cysts were present in all localities. Although infracommunity richness was similar, their species composition was slightly different among localities. General linear models using the relative condition factor of fish as response variables, and abundance of the most prevalent parasites as possible predictors showed that the condition of fish is negatively correlated with parasite abundance only in the native range (TO). Abundance of diplostomid eye flukes was higher in the PR, and in the native species H. malabaricus when compared to the invader, which might present an advantage for P. squamosissimus if they compete for prey. However, although P. squamosissimus may have lost some of its native parasites during its introduction to the PR, it is now possibly acting as a host for native generalist parasites. PMID:22468610

Lacerda, A C F; Takemoto, R M; Tavares-Dias, M; Poulin, R; Pavanelli, G C

2012-04-02

246

Airborne measurements of aerosols from burning biomass in Brazil related to the TRACE A experiment  

NASA Astrophysics Data System (ADS)

Results are reported from an airborne campaign to investigate the impacts of burning biomass upon the loading of lower-tropospheric aerosols and its composition over the Brazilian tropics. The flights, conducted as part of the NASA/Transport and Atmospheric Chemistry Near the Equator-Atlantic (TRACE A) mission, started on September 1, 1992, when the dry (fire) season still prevailed in the central part of Brazil, and ended on September 29. Of the total number of burnings detected in Brazil by the advanced very high resolution radiometer (AVHRR)/NOAA satellite sensor, 74% were concentrated in the states of Amazonas, Maranhão, Mato Grosso, Pará, Roraima, and Tocantins during this period. Aerosol particles were sampled from a twin-engine aircraft in transit and vertical profile flights were made up to 4,000 m altitude. Black carbon measurements made in real time and in areas of burning biomass peaked at ˜2,500 m above the ground, increasing to ˜12,000 ng/m3. In other areas these values were lower by 1 order of magnitude. A condensation nuclei counter measuring small particles (>0.014 ?m) produced values ranging from 2,000 to 16,000/cm3 for areas with low and high burning biomass, respectively. Deposition filters in a two-stage cascade impactor, and Nuclepore filters collected aerosols for analysis of 13 elements through particle-induced X ray emissions (PIXE). Primary elements associated with soil dust (Al, Si, Mn, Fe, Ni) prevailed in the aerosol coarse mode (>1 ?m) while the fine mode aerosols were enriched in S, K, Br, and Rb, which are tracers normally associated with burning of biomass. The good correlation between fire spot counts, obtained via AVHRR aboard NOAA satellites, and black carbon, counts of small particles and total aerosol mass, suggests the determining of local concentrations of fire-derived aerosol fire emissions by satellite to be a new and useful approach.

Pereira, E. B.; Setzer, A. W.; Gerab, F.; Artaxo, P. E.; Pereira, M. C.; Monroe, G.

1996-10-01

247

Genetic structure of red-handed howler monkey populations in the fragmented landscape of Eastern Brazilian Amazonia  

PubMed Central

We genotyped 15 microsatellite loci in order to evaluate the effects of habitat fragmentation, caused by flooding of the Tucuruí reservoir, on the genetic structure of Alouatta belzebul in eastern Amazonia. The analysis included two populations sampled in 1984, representing both margins of the Tocantins river, and three populations sampled 18 years later. Minimal differences in the diversity levels between present-day (Ho = 0.62-0.69 and AR = 6.07-7.21) and pre-flooding (Ho = 0.60-0.62 and A R = 6.27-6.77) populations indicated there was no significant loss of genetic variability, possibly because of successful management strategies applied during the flooding. The changes observed were limited to shifts in the composition of alleles, which presumably reflect the admixture of subpopulations during flooding. Given this, there were significant differences in the Rst values (p = 0.05) in all but one between-site comparison. Both present-day and original populations showed a deficit of heterozygotes, which suggests that this may be typical of the species, at least at a local level, perhaps because of specific ecological characteristics. The relatively large number of private alleles recorded in all populations may be a consequence of the Wahlund effect resulting from population admixture or a process of expansion rather than the loss of rare alleles through genetic drift. Additionally, the levels of genetic variability observed in this study were higher than those reported for other species of Neotropical primates, suggesting good fitness levels in these A. belzebul populations. Regular genetic monitoring of remnant populations, especially on islands, should nevertheless be an integral component of long-term management strategies.

2010-01-01

248

Desenvolvimento local e agricultura familiar: o caso da produção de açúcar mascavo em Capanema - Paraná Local development and family agriculture: the brown sugar production case in Capanema city- Paraná state in Brazil Développement local et agriculture familiale: le cas de la production de sucre brun dans la ville de Capanema dans l'état du Paraná au Brésil Desarrollo local y la agricultura familiar: el caso de la producción de azúcar marrón en la ciudad de Capanema - estado de Paraná en Brasil  

Microsoft Academic Search

Resumo: Esse estudo analisa, por meio de um estudo exploratório, o aporte dos produtos derivados da cana-de- açúcar no contexto do desenvolvimento local no município de Capanema - Paraná. Essa atividade se apresenta como opção para a produção da agricultura familiar ao criar alternativa de renda nas unidades agroindustriais, além de possibilitar a diversificação da produção. Os resultados mostram que

Mariza Zeni de Castro; Jandir Ferrera de Lima; Pery Francisco Assis Shikida

2009-01-01

250

Depressão e envelhecimento : estudo nos participantes do Programa Universidade Aberta à Terceira Idade  

Microsoft Academic Search

Objectives: to identify depression in the elderly enrolled at the Senior Citizens Open University, a program of the Federal University of Pernambuco, considering demographic, social and economic vari- ables. Methods: epidemiological, descriptive, cross sectional cohort study . A census comprising 358 elderly subjects being 312 women and 46 men (> 60 yr) through the Brasil Old Age Schedule (BOAS) was

Eduardo Maia; Kátia Magdala; Lima Barreto; Ilka Veras Falcão; Moraes Rego

251

Oxamniquine, praziquantel and lovastatin association in the experimental Schistosomiasis mansoni  

Microsoft Academic Search

1 Santa Casa de Belo Horizonte, Belo Horizonte, Brasil The activity of lovastatin associated with oxamniquine or praziquantel against schistosomiasis mansoni was evaluated in mice infected with Schistosoma mansoni. Forty days after infection, mice were treated with lovastatin, 400 mg\\/kg for five consecutive days by oral route, and on the last day of this sequence with 50 mg\\/kg oxamniquine or

Neusa Araújo; Ana Carolina Alves de Mattos; Ana Karine Sarvel; Paulo Marcos Zech Coelho; Naftale Katz

2008-01-01

252

Síndrome pulmonar e cardiovascular por Hantavirus: aspectos epidemiológicos, clínicos, do diagnóstico laboratorial e do tratamento Hantavirus pulmonary and cardiovascular syndrome: epidemiology, clinical presentation, laboratory diagnosis and management aspects  

Microsoft Academic Search

Resumo A síndrome pulmonar e cardiovascular por Hantavirus (SPCVH), é doença emergente com descrição crescente de casos no Brasil. Neste trabalho, estudou-se 8 casos confirmados da doença. Todos apresentaram febre e dispnéia. Taquicardia, astenia, hipotensão e estertoração pulmonar ocorreram em 75 a 87,5% dos casos. Plaquetopenia e hipoxemia ocorreram em 100% dos casos, hemoconcentração, leucocitose com desvio à esquerda e

Luiz Tadeu; M. Figueiredo; Gelse Mazzoni Campos; Fernando Bellissimo Rodrigues

253

Análise da composição fitoquímica do extrato etanólico das folhas da Annona squamosa (ATA) Phytochemical analysis composition from Annona squamosa (ATA) ethanolic extract leaves  

Microsoft Academic Search

RESUMO - O conhecimento histórico do uso de plantas medicinais nos mostra que as plantas foram os primeiros recursos terapêuticos utilizados. Annona squamosa L., Annonaceae, encontra-se aclimatada no Brasil, sendo conhecida popularmente como ATA, pinha, fruta-do-conde, entre outros nomes. A A TA é bastante utilizada na medicina popular, possuindo ações antidiarréica, antitumoral, antifertilidade e con- tra hipertireoidismo e fitonematóides. Dessa

Haissa Oliveira Brito; Elda Pereira Noronha; Lucas Martins França; Maria Segunda-Aurora Prado

254

Curso de Licenciatura em Matemática a Distância Uma Síntese do Projeto Pedagógico  

Microsoft Academic Search

The increasing offer of e-learning courses in Brasil at graduate level in public institution and several undergraduate courses in private institutions, took the Ministry of Education of Brazil to establish rules to register institutions offering e- learning courses with recognized diploma. This accreditation it is only given to the Institution, when based on a evaluation of the actual offer of

João Artur de Souza; Elton Luiz Vergara Nunes; Gertrudes Aparecida Dandolini; Luiz Alberto Brettas

255

Células-tronco embrionárias: implicações bioéticas e jurídicasa Embrionyc stem-cells: bioethical and legal implications Células troncales embrionarias: implicaciones bioéticas e legales  

Microsoft Academic Search

RESUMO: A pesquisa e terapia com as células-tronco embrionárias, reguladas no Brasil pela Lei de Biossegurança são fontes de questionamentos controversos nos aspectos bioético, moral e jurídico porque resultam na destruição de embriões. Com seus princípios e paradigmas, a Bioética con- tribui para a compreensão de eventuais benefícios que a terapia celular poderá trazer para a medicina. As grandes questões

Delci Gomes

256

Comparison of stomach cancer incidence and survival in four continents  

Microsoft Academic Search

The aim of this study was to compare stomach cancer incidence and survival rates between four very distinct areas: Campinas (Brasil), Latin America, Iowa (USA), Northern America, Varese (Italy), Europe and Osaka (Japan) in Asia, and determine which of the differences are due to variations in the case mix and which are due to the care received. A proportional hazards

A Verdecchia; A Mariotto; G Gatta; M. T Bustamante-Teixeira; W Ajiki

2003-01-01

257

O estudo do clima urbano e a legislação urbanística: considerações a partir do caso Montes Claros, MG  

Microsoft Academic Search

Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte - MG Brasil This paper discusses the relationship between the study of urban climate and urban legislation, based on a study carried out in Montes Claros, MG. Initially a review on Brazilian urbanization is presented, focusing on the paths opened by the Statute of the City regarding urban sustainability. Then, theoretical aspects of

Patrícia Silva Gomes; Roberto Lamberts

258

A cer A certeza que pariu a dúvida: teza que pariu a dúvida: teza que pariu a dúvida: teza que pariu a dúvida: teza que pariu a dúvida  

Microsoft Academic Search

esumo esumo: Atualmente, no Brasil, existe uma onda de testes de paternidade DNA (nos laboratórios públicos e em clínicas particulares) que levanta reflexões interessantes quanto à interseção das esferas médica e jurídica e sua influência sobre as relações de gênero e de parentesco na sociedade contemporânea. Para analisar esse fenômeno, acompanhamos nas diferentes instâncias jurídicas em Porto Alegre (na Defensoria

Claudia Fonseca

259

Paternidade brasileira na era do DNA: a certeza que pariu a dúvida  

Microsoft Academic Search

Atualmente, no Brasil, existe uma onda de testes de paternidade DNA (nos laboratórios públicos e em clínicas particulares) que levanta reflexões interessantes quanto à interseção das esferas médica e jurídica e sua influência sobre as relações de gênero e de parentesco na sociedade contemporânea. Para analisar esse fenômeno, acompanhamos nas diferentes instâncias jurídicas em Porto Alegre (na Defensoria da República,

Claudia Fonseca

2004-01-01

260

Monitoring water level in large trans-boundary ungauged basins with altimetry: the example of ENVISAT over the Amazon basin  

Microsoft Academic Search

Brasil and Bolivia have water plans projects on the Beni-Madeira river, a major tributary of the Amazon. There are four main tributaries to the Rio Madeira: the Guapore, the Mamore and the Beni rivers into the Bolivian territory, and the Madre de Dios River crossing the North of Bolivia, coming from Peru. Most parts of these rivers are very far

Frederique Seyler; Stephane Calmant; Joecila da Silva; Naziano Filizola; Emmanuel Roux; Gerard Cochonneau; Philippe Vauchel; Marie-Paule Bonnet

2009-01-01

261

Diabetes e transtornos alimentares: Diabetes e transtornos alimentares: Diabetes e transtornos alimentares: Diabetes e transtornos alimentares: Diabetes e transtornos alimentares: uma associação de alto risco uma associação de alto risco uma associação de alto risco uma associação de alto risco uma associação de alto risco Diabetes and eating disorders: a high Diabetes and eating disorders: a high Diabetes and eating disorders: a high Diabetes and eating disorders: a high Diabetes and eating disorders: a high  

Microsoft Academic Search

O diabetes mellitus (DM) é uma doença crônica que cursa com várias complicações clínicas e está entre as maiores causas de morbidade e mortalidade no Brasil. A presença de comorbidades psiquiátricas, principalmente depressão e transtornos alimentares (TA), no paciente diabético, pode interferir no controle metabólico e aumen- tar as complicações da doença. Entre os vários fatores na associação entre o

Alexandre Pinto de Azevedo; Marcelo Papelbaum; Fernanda D'Elia

262

ESTUDO DOS PARÂMETROS DO MODELO DE VAZAMENTOS DE UM SETOR DA REDE DE DISTRIBUIÇÃO DE ÁGUA DE PIRACICABA-SP  

Microsoft Academic Search

Resumo - O presente estudo visa avaliar as perdas por vazamento para um setor da rede de distribuição de água da cidade de Piracicaba, SP, Brasil. Para tanto, utiliza-se um procedimento iterativo de avaliação hidráulica que considera as perdas por vazamento e a dependência das demandas com a pressão, acoplado ao simulador hidráulico EPANET 2 (Rossman, 2000), com vistas à

Alexandre Kepler Soares; Luisa Fernanda; Ribeiro Reis

263

DINÂMICA E COMPETITIVIDADE DAS EXPORTAÇÕES DE FRUTAS DO RIO GRANDE DO NORTE NO PERÍODO DE 1999 A 2005  

Microsoft Academic Search

O Rio Grande do Norte tem sido apontado desde a década de 1990 em vários estudos como um dos principais produtores e exportadores brasileiros de frutas frescas, no entanto, existe uma carência de estudos capazes de responder a questionamentos como: qual o desempenho competitivo do Rio Grande do Norte em relação ao restante do Brasil no mercado de fruticultura? O

Maria Elza De Andrade; Genivalda Cordeiro Da Costa; Ana Cristina Nogueira Maia

2008-01-01

264

2o CONGRESSO BRASILEIRO DE P&D EM PETRÓLEO & GÁS  

Microsoft Academic Search

Resumo - A escassez do petróleo e a crescente pressão dos organismos ambientais têm contribuído significativamente para o aumento da utilização mundial do gás natural, nos diversos setores, em substituição aos combustíveis fósseis. Porém, no Brasil, o governo pretende utilizar o combustível para alimentar várias termelétricas a fim de suprir o déficit energético. O estudo mostra que esta opção acarreta

Eduardo Rocha Praça; Ernesto Ferreira; Nobre Júnior; João Bosco; Furtado Arruda

265

Non-conventional application of AC drives - Use of AC drives in emergency systems. Case study: tilting system of torpedo car in CST BOF shop  

Microsoft Academic Search

Nowadays, variable speed drives (VSD's) are very often used in many industrial systems, but almost always in traditional applications. This paper describes the successful application of VSD's in the CST-Arcelor Brasil torpedo car tilting system in the basic oxygen furnace BOF (steelmaking plant), in normal operation condition and also in emergency system condition during blackouts. The electrical system uses a

P. H. Zanandrea; A. C. V. Goncalves; E. V. Ardisson; E. V. Dias; J. F. Campos; E. D. Gomes

2006-01-01

266

Vegetais fósseis do Terciário brasileiro  

Microsoft Academic Search

A bacia de Fonseca, situada na região do Quadrilátero Ferrífero, no estado de Minas Gerais, sudeste do Brasil, constitui um clássico exemplo de sedimentos terciários, tendo despertado o interesse de vários pesquisadores, desde a segunda metade do século passado, por conter depósitos de \\

Claudio Limeira Mello; Lílian Paglarelli Bergqvist; Lucy Gomes Sant

267

Initial orientation of homing pigeons at the magnetic equator with and without sun compass  

Microsoft Academic Search

To test the present hypotheses concerning the functioning of the bird's magnetic compass, pigeons reared near the magnetic and geographic equator (Fortaleza, NE Brasil) were released 300 km NW of their home in the horizontal field at the magnetic equator. Pigeons released in the morning and in the afternoon were roughly homeward oriented whereas pigeons released at noon with the

R. Ranvaud; K. Schmidt-Koenig; J. Kiepenheuer; O. C. Gasparotto

1983-01-01

268

Granulados bioclásticos: algas calcárias  

Microsoft Academic Search

Os granulados bioclásticos marinhos, no Brasil, são formados principalmente por algas calcárias (Maerl e Lithothamnium, na França). Apenas as formas livres (free-living) das algas calcárias, tais como rodolitos, nódulos, e seus fragmentos, são viáveis para a exploração econômica, pois constituem depósitos sedimentares inconsolidados, facilmente coletados através de dragagens. As algas calcárias são compostas basicamente por carbonato de cálcio e carbonato

Gilberto T. M. Dias

2000-01-01

269

Escola na Rede:construindo uma comunidade eletrônica de aprendizagem  

Microsoft Academic Search

This paper aims to present the environment of the distance education program, named Escola na Rede, o f t he Secretaria da Fazenda do Rio Grande do Su l, Brasil (SEFA\\/RS), developed by Escola Fazendária (EFAZ). This tool was completely designed and developed , as an o wner s ystem, to supply not only the SEFA\\/RS corporative qualification needs, but

Fernanda Carneiro; Leão Gonçalves; Bayardo Joaquin; Vega Morales

270

Promoção da saúde e trabalho: um ensaio analítico Health promotion and work: an analytic essay Promoción de la Salud y del trabajo: un ensayo analítico  

Microsoft Academic Search

RESUMO Este artigo teve como propósito discutir a articulação entre promoção da saúde e trabalho, na perspectiva de aproximar as práticas em saúde do trabalhador, com o enfoque na promoção da saúde. Para tanto, discutimos a trajetória histórica da promoção da saúde e das políticas de saúde do trabalhador no Brasil, apontando suas dificuldades, limitações e perspectivas. Em seguida, analisamos

Soraya Maria de MedeirosIII

271

Metamorphism, Metasomatism and Mineralization at Lagoa Real, Bahia, Brazil.  

National Technical Information Service (NTIS)

Uranium deposits cumulatively in the 100,000 ton U sub 3 O sub 8 range occur within ductile shear zones transecting Archean basement gneisses of the Sao Francisco Craton, at the Lagoa Real region of south-central Bahia, Brasil. The gneisses, dated at 2.6-...

L. M. Lobato

1985-01-01

272

Reciclaje Sostenible de Botellas de PET en Rio de Janeiro  

Microsoft Academic Search

Este trabajo presenta un estudio de caso exitoso implementado en la ciudad de Rio de Janeiro, Brasil, evidenciando la utilización de un instrumento basado en el mercado con el propósito de perfeccionar la calidad de los servicios de aseo urbano de la ciudad. En esto estudio de caso se demuestra la viabilidad técnica y económica del proceso de reciclaje de

Luiz Edmundo Costa Leite; José Henrique Penido Monteiro

2003-01-01

273

O MÉTODO DE HISTÓRIA DE VIDA NA PESQUISA EM EDUCAÇÃO ESPECIAL THE LIFE HISTORY METHOD IN SPECIAL EDUCATION RESEARCH  

Microsoft Academic Search

RESUMO: este artigo tem por objetivo apresentar uma síntese de um conjunto de pesquisas desenvolvidas na área de Educação Especial que utilizaram o método de História de Vida, com diversas populações. Essa metodologia de pesquisa vem sendo empregada no Brasil desde o final da década de 80, e tem como principal instrumento a entrevista aberta, sem roteiro pré-determinado. Busca encontrar,

Rosana GLAT; Rosangela da Silva SANTOS; Márcia Denise PLETSCH; Mario Lúcio de Lima; Maria Auxiliadora Ferreira; Tiburcio DUQUE

274

LA COLONISATION DE L'AMAZONIE FACE AU DEVELOPPEMENT DURABLE : L'EXEMPLE DU BARRAGE DE BELO MONTE  

Microsoft Academic Search

The debate on a new dinamic of development of the Amazon had been reopened by an investment plan of the brazilian federalgovernment named Avança Brasil. But the strength of the mobilization against it, using the sustanaible development as an argument and which may be suported by the new gouvernment, can transform this project. Based on the detailed study of one

Xavier Arnauld de Sartre

275

Educating and Training Undergraduate Applied Statisticians.  

ERIC Educational Resources Information Center

|A course on Applied Statistics, offered since 1978 at the Instituto de Matematica e Estatistica, Universidade de Sao Paulo, Brasil, is designed to educate statisticians at the bachelor's level for jobs in government statistical offices, industry, and business. (Author/LMO)|

Peres, Clovis A.; And Others

1985-01-01

276

INVESTIGAÇÕES EM SISTEMAS DE SERVIÇOS DE SAÚDE COMO FERRAMENTA PARA O ALCANCE DE PROGRAMAS DE CONTROLE DA HANSENÍASE MAIS EFETIVOS NO B RASIL* Health systems research training as a tool for more effective Hansen's disease control programmes in Brazil  

Microsoft Academic Search

RESUMO No Brasil, a hanseníase permanece como um importante problema de saúde pública. Embora um grande progresso tenha sido obtido nos Programas de Controle da Hanseníase (PCH), em todos os níveis do governo nos últimos 20 anos, algumas ações não foram potencializadas. O motivo: lacunas de informação relacionadas a áreas específicas da doença, exacerbadas pela ausência de instrumentos apropriados para

Alberto Novaes Ramos Jr; Jorg Heukelbach; Marcia Gomide; Pieter A. M. Schreuder

277

Dieta cetogênica e dieta de Atkins modificada no tratamento da epilepsia refratária em crianças e adultos  

Microsoft Academic Search

RESUMO Introdução: A dieta cetogênica (DC) e a dieta de Atkins modificada (DAM) são dietas terapêuticas mun- dialmente utilizadas no tratamento da epilepsia refratária em crianças e adultos. No Brasil estas modalidades de tratamento são pouco indicadas, restringindo a poucos centros. Metodologia: Revisão de literatura sobre a utilização da DC e DAM no tratamento da epilepsia refratária. Conclusões: A DC

Luciana Midori Inuzuka-Nakaharada

2008-01-01

278

Blood Evaluation Of Cl and Na Concentration In Crioulo Breed Horses Using NAA: Comparison With Humans Levels  

SciTech Connect

Neutron Activation Analysis was utilized for determining the concentration of chlorine and sodium in blood of Crioulo breed horses used for hyperimmune sera production (Bothrops, Diphtheria and Tetanus) at Butantan Institute (Sao Paulo city, Brasil). These data are an important support for a toxicological control of adverse reactions in patients who will receive the hyperimmune serum.

Baptista, Tatyana S. [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP) Av. Professor Lineu Prestes 2242 05508-000 Sao Paulo, SP (Brazil); Instituto Butantan Av Vital Brasil 1500 05503-900 Sao Paulo, SP (Brazil); Zamboni, Cibele B.; Medeiros, Jose Agostinho G. de [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP) Av. Professor Lineu Prestes 2242 05508-000 Sao Paulo, SP (Brazil); Marcelino, Jose R.; Higashi, Hisako G.; Freitas, Monica G. [Instituto Butantan Av Vital Brasil 1500 05503-900 Sao Paulo, SP (Brazil)

2009-06-03

279

Sensibilidade a antimicrobianos de bactérias isoladas do trato respiratório de pacientes com infecções respiratórias adquiridas na comunidade: resultados brasileiros do Programa SENTRY de Vigilância de Resistência a Antimicrobianos dos anos de 1997 e 1998  

Microsoft Academic Search

O tratamento da pneumonia adquirida na comunidade (PAC) é habitualmente empírico e o uso de antimicrobianos é baseado em estudos de vigilância. O programa SENTRY foi desenhado para monitorar a resistência a antimicrobianos através de uma rede internacional de laboratórios. Três centros no Brasil participaram do Programa SENTRY em 1997 e em 1998. Métodos: Um total de 344 isolados bacterianos

HÉLIO S. SADER; ANA C. GALES; ADRIANA O. REIS; CASSIA ZOCCOLI; JORGE SAMPAIO; RONALD N. JONES

2001-01-01

280

Future Expectations of Brasilian Street Youth  

ERIC Educational Resources Information Center

|Future expectations of youth surviving on the streets of Porto Alegre, Brasil, were examined. The sample consisted of 35 boys and 34 girls aged 10-18 (M age 14.4) who participated in a sentence completion task and semi-structured interviews. Responses to two incomplete sentences regarding the future revealed a mismatch between hoped-for and…

Raffaelli, M.; Koller, S.H.

2005-01-01

281

Crimen en Colombia: análisis y sugerencias de política  

Microsoft Academic Search

Introducción: Las tasas de homicidio en Colombia están entre las más altas del mundo. En el pico de 1991, casi mil colombianos fueron asesinados en un año. La tasa de homicidios en Colombia es tres veces más alta que la de Brasil o México, y diez veces mayor que la de Argentina, Uruguay o que la de los Estados Unidos.

Levitt Steven; Mauricio Rubio

2000-01-01

282

Demanda por fundos de investimento RF e DI: um modelo de escolha discreta  

Microsoft Academic Search

Resumo : Neste artigo usamos a teoria da organização industrial para analisar os determinantes da demanda de fundos de investimento de renda fixa e DI no Brasil. Utilizamos um Modelo de Escolha Discreta conhecido como Logit Aninhado, dividindo os fundos de investimento em grupos de acordo com a similaridade das instituições que os administram. Dessa forma, evitamos os problemas relacionados

Thiago Rodrigues; Ricardo Buscariolli Pereira; Juliana Inhasz

2008-01-01

283

Conhecimento e inovação em sistemas locais de produção de revestimentos cerâmicos e os novos desafi os da concorrência internacional  

Microsoft Academic Search

RESUMO Este trabalho tem como objetivo contribuir para a compreensão das novas dinâmicas de geração de conhecimento e inovação em sistemas loc ais de produção a partir dos desafi os da concorrência internacional, por meio da realização de estudos em dois sistemas locais da indústria de cerâmica de revestimento no Brasil, um localizado em Santa Gertrudes\\/SP e outro em Criciúma\\/SC.

Gabriela Scur FEI; Renato Garcia EPUSP

2008-01-01

284

CARACTERIZAÇÃO MOLECULAR DE BUTIAZEIRO POR MARCADORES RAPD1  

Microsoft Academic Search

RESUMO- O grupo botânico Arecaceae é de extremo interesse por compreender plantas em extinção e por apresentar um grande potencial de exploração econômica. O butiazeiro (Butia capitata (Mart.) Becc.) ocorre naturalmente no Sul do Brasil. Sua caracterização molecular é de extremo interesse para futuros trabalhos de melhoramento genético. Assim sendo, verificou-se a variabilidade genética existente entre vinte e dois genótipos

ADRISE MEDEIROS NUNES; VALMOR JOÃO BIANCHI; JOSÉ CARLOS FACHINELLO; ALEXANDRE ZANARDO DE CARVALHO; GUILHERME CARDOSO

285

CRÍTICA LITERÁRIA FEMINIST A ENTRE ERÓTICA E ENGAJAMENTO POLÍTICO : UMA QUESTÃO POLÊMICA  

Microsoft Academic Search

Resumo:A partir de exame bibliográfico, perspectiva interdisciplinar e observação empírica, este estudo pretende, dentro do contexto latino-americano (Brasil e América Hispânica) das ditaduras militares, discutir algumas das possíveis relações entre temas polêmicos como o feminismo, crítica literária feminista e engajamento político, debatidos em certos setores da mídia e refletidos em obras literárias. Textos da ar gentina Marta Pynch, da costaricense

Vera Lúcia Dietzel

286

Supporting Knowledge Communities with Online Distance Learning System Platform  

Microsoft Academic Search

The Online Distance Learning System from CRT Brasil Telecom (Brazilian Telephone Company), has showed that technology and education found a commum point to perform good educational methodologies. Contents and ODL (Online Distance Learning) programs reached a very good point of performance and moreover, internal culture is much more prepared to use Online Learning now than ever. The next target now

Juarez Sagebin; Candida Pasquali

287

A PAIXÃO PELO BELO: A BUSCA DA FONTE DA ETERNA JUVENTUDE  

Microsoft Academic Search

RESUMO: O presente artigo tem por objetivo principal analisar a manifestação patêmica do sujeito apaixonado pelo belo, e em busca da fonte da eterna juventude, presente no texto publicitário do creme Prevage, recém-lançado no Brasil pela empresa de cosméticos Elizabeth Arden. Será utilizado o referencial teórico apresentado pela semiótica francesa, principalmente os estudos acerca da semiótica das paixões. A modalização

Juliana Spirlandeli BATISTA

288

Exotic Nuclei in South America  

SciTech Connect

The Radioactive Ion Beams in Brasil(RIBRAS) is described. Experiments using radioactive secondary beams of light rare isotopes such as {sup 6}He, {sup 7}Be, {sup 8}Li on several targets have been performed and the results are presented.

Lichtenthaeler, R.; Lepine-Szily, A.; Guimaraes, V.; Faria, P. N. de; Mendes, D. R. Jr; Pires, K. C. C.; Morcelle, V.; Barioni, A.; Morais, M. C.; Pampa Condori, R. [Instituto de Fisica da USP, Sao Paulo, Brazil, C.P. 66318, 05314-970 (Brazil); Assuncao, M. [Departamento de Ciencias Exatas e da Terra, Unifesp, Campus de Diadema, Sao Paulo (Brazil); Moro, A. M. [Departamento de FAMN, Universidad de Sevilla, Apdo. 1065, E-41080, Sevilla (Spain); Rodriguez-Gallardo, M. [Departamento de FAMN, Universidad de Sevilla, Apdo. 1065, E-41080, Sevilla (Spain); Instituto de Estructura de la Materia, CSIC, Serrano 123, E-28006 Madrid (Spain); Arazi, A. [Laboratorio TANDAR, Comision Nacional de Energia Atomica (Argentina)

2010-08-04

289

Potential geodynamic relationships between the development of peripheral orogens along the northern margin of Gondwana and the amalgamation of West Gondwana  

NASA Astrophysics Data System (ADS)

The Neoproterozoic-Early Cambrian evolution of peri-Gondwanan terranes (e.g. Avalonia, Carolinia, Cadomia) along the northern (Amazonia, West Africa) margin of Gondwana provides insights into the amalgamation of West Gondwana. The main phase of tectonothermal activity occurred between ca. 640-540 Ma and produced voluminous arc-related igneous and sedimentary successions related to subduction beneath the northern Gondwana margin. Subduction was not terminated by continental collision so that these terranes continued to face an open ocean into the Cambrian. Prior to the main phase of tectonothermal activity, Sm-Nd isotopic studies suggest that the basement of Avalonia, Carolinia and part of Cadomia was juvenile lithosphere generated between 0.8 and 1.1 Ga within the peri-Rodinian (Mirovoi) ocean. Vestiges of primitive 760-670 Ma arcs developed upon this lithosphere are preserved. Juvenile lithosphere generated between 0.8 and 1.1 Ga also underlies arcs formed in the Brazilide Ocean between the converging Congo/São Francisco and West Africa/Amazonia cratons (e.g. the Tocantins province of Brazil). Together, these juvenile arc assemblages with similar isotopic characteristics may reflect subduction in the Mirovoi and Brazilide oceans as a compensation for the ongoing breakup of Rodinia and the generation of the Paleopacific. Unlike the peri-Gondwanan terranes, however, arc magmatism in the Brazilide Ocean was terminated by continent-continent collisions and the resulting orogens became located within the interior of an amalgamated West Gondwana. Accretion of juvenile peri-Gondwanan terranes to the northern Gondwanan margin occurred in a piecemeal fashion between 650 and 600 Ma, after which subduction stepped outboard to produce the relatively mature and voluminous main arc phase along the periphery of West Gondwana. This accretionary event may be a far-field response to the breakup of Rodinia. The geodynamic relationship between the closure of the Brazilide Ocean, the collision between the Congo/São Francisco and Amazonia/West Africa cratons, and the tectonic evolution of the peri-Gondwanan terranes may be broadly analogous to the Mesozoic-Cenozoic closure of the Tethys Ocean, the collision between India and Asia beginning at ca. 50 Ma, and the tectonic evolution of the western Pacific Ocean.

Murphy, J. Brendan; Pisarevsky, Sergei; Nance, R. Damian

2013-10-01

290

Mutual evaluation of global gravity models (EGM2008 and GOCE) and terrestrial data in Amazon Basin, Brazil  

NASA Astrophysics Data System (ADS)

The gravity observations of the satellite GOCE have a global homogeneous coverage and precision. This data set constitutes an independent new tool to control the quality of terrestrial gravity data. Terrestrial data reach higher resolution and precision, but can be affected by errors due to factors such as different vertical geodetic datums, wrong position in latitude and longitude, geodynamic effects and gravimeter drift, which tends to accumulate over long distances. Terrestrial data recover gravity signals at shorter wavelengths compared to the GOCE satellite, but the average gravity anomaly values can be compared to the GOCE derived values which are bandlimited to lower frequencies. We consider the area of the Amazon Craton, and in particular the Solimões, Amazon and Parnaiba Basins, and part of the Tocantins and São Francisco Provinces in Brazil, to estimate the systematic errors in terrestrial gravity data. We calculate the average terrestrial gravity anomaly by spatial averages applying Gaussian, inverse distance and simple averages, which allows to compare the long- and medium-wavelength part of the terrestrial gravity anomalies with the gravity field derived from GOCE. We also consider the combined satellite-terrestrial model EGM2008 up to degree and order 250 (i.e. maximum expansion from satellite GOCE). The results show that the systematic errors range from about -28.1 to 25.2 mGal with a standard deviation value of 6.4 mGal. The mean value over the study area is about zero, obtaining 0.27 mGal difference between the Gaussian average of the terrestrial gravity data and the gravity data from the GOCE satellite-only model and is smaller than the commission error associated to the geopotential model. Also, we verified that 64.8 per cent of the study area does not present systematic errors, as their difference is within the commission error of 5.1 mGal of the GOCE model in the harmonic expansion up to degree 250. The comparison of the terrestrial data with the model EGM2008 gives slightly smaller differences, which can be attributed to the fact that the EGM2008 contains terrestrial data. The results vary only slightly according to the type of averaging used, with improved values for the Gaussian average. The analysis also shows where the terrestrial data are scarce and require an improvement in data coverage in order to correctly represent the gravity field. The method we propose can be directly used to control other gravity databases and constitutes a tool for the quality assessment of terrestrial gravity observations.

Bomfim, E. P.; Braitenberg, C.; Molina, E. C.

2013-11-01

291

Mutual evaluation of global gravity models (EGM2008 and GOCE) and terrestrial data in Amazon Basin, Brazil  

NASA Astrophysics Data System (ADS)

The gravity observations of the satellite GOCE have a global homogeneous coverage and precision. This data set constitutes an independent new tool to control the quality of terrestrial gravity data. Terrestrial data reach higher resolution and precision, but can be affected by errors due to factors such as different vertical geodetic datums, wrong position in latitude and longitude, geodynamic effects and gravimeter drift, which tends to accumulate over long distances. Terrestrial data recover gravity signals at shorter wavelengths compared to the GOCE satellite, but the average gravity anomaly values can be compared to the GOCE derived values which are bandlimited to lower frequencies. We consider the area of the Amazon Craton, and in particular the Solimões, Amazon and Parnaiba Basins, and part of the Tocantins and São Francisco Provinces in Brazil, to estimate the systematic errors in terrestrial gravity data. We calculate the average terrestrial gravity anomaly by spatial averages applying Gaussian, inverse distance and simple averages, which allows to compare the long- and medium-wavelength part of the terrestrial gravity anomalies with the gravity field derived from GOCE. We also consider the combined satellite-terrestrial model EGM2008 up to degree and order 250 (i.e. maximum expansion from satellite GOCE). The results show that the systematic errors range from about -28.1 to 25.2 mGal with a standard deviation value of 6.4 mGal. The mean value over the study area is about zero, obtaining 0.27 mGal difference between the Gaussian average of the terrestrial gravity data and the gravity data from the GOCE satellite-only model and is smaller than the commission error associated to the geopotential model. Also, we verified that 64.8 per cent of the study area does not present systematic errors, as their difference is within the commission error of 5.1 mGal of the GOCE model in the harmonic expansion up to degree 250. The comparison of the terrestrial data with the model EGM2008 gives slightly smaller differences, which can be attributed to the fact that the EGM2008 contains terrestrial data. The results vary only slightly according to the type of averaging used, with improved values for the Gaussian average. The analysis also shows where the terrestrial data are scarce and require an improvement in data coverage in order to correctly represent the gravity field. The method we propose can be directly used to control other gravity databases and constitutes a tool for the quality assessment of terrestrial gravity observations.

Bomfim, E. P.; Braitenberg, C.; Molina, E. C.

2013-08-01

292

Habitat use and home range of brown-nosed coati, Nasua nasua (Carnivora: Procyonidae) in the Brazilian Cerrado biome.  

PubMed

The brown-nosed coati (Nasua nasua) is a carnivorous species found in all the Brazilian biomes, some of which are endangered areas. The aim of this work was to determine the habitat use and selection, home range and core area of N. nasua in the Cerrado biome, central region of Tocantins, Brazil. The study was carried out in an area of approximately 20 000ha from May 2000 to July 2002. A total of seven box traps were placed in the area for 13 months, three of 11 captured animals were followed and monitored by radio-tracking during 13 months. The monitoring was conducted once a day, three times a week using a car and walking through the study area (radio-tracking and visual contact). The results demonstrate that these three males used more frequently the gallery forest formation, followed by cerrado and wetlands. The use of gallery forest by these animals indicated an habitat selection (Proportion test, z=12.98, p<0.01). Besides, adult males used the gallery forest more frequently (Fisher's exact test, p<0.01) and wetlands less frequently (Fisher's exact test, p<0.01) than juvenile males, without significant differences between animal ages for cerrado percentage of habitat use. Besides, results also showed a gallery forest selection by adult (Proportion test z=13.62, p<0.01) and juvenile (Proportion test z=2.68, p<0.01) males, and a wetland selection by the juvenile male (Proportion test z=3.90, p<0.01). The home ranges varied from 2.20 to 7.55km2 for the Minimum Convex Polygon 100% (MCP 100%) and from 4.38 to 13.32km2 for the Harmonic Mean 95% (HM 95%). The smallest home range overlap occurred between the adult males (Nm1 and Nm3), and the greatest between the juvenile Njm2 and the adult Nm1. The average of the core area (HM 75%) for the three monitored animals represented 21.29% of the home range calculated with HM 95%. No overlap between core areas was observed for adult males, but, it was an overlap between the core area of the juvenile male and its band with that of the two adult males. The present study provides new data on core area size and frequency habitat use by adult and juvenile males of N. nasua in the Brazilian Cerrado, that may support conservation efforts. PMID:20737855

Trovati, Roberto Guilherme; Brito, Bernardo Alves de; Duarte, José Maurício Barbanti

2010-09-01

293

A second note on the geographical differentiation of Amphisbaena fuliginosa L., 1758 (Squamata, Amphisbaenidae), with a consideration of the forest refuge model of speciation.  

PubMed

The geographical differentiation of Amphisbaena fuliginosa L. is studied with basis on 220 specimens from 99 definite and 2 generic localities, ranging from Panam to Puno in Peru and Goi s in Brasil. The pattern found is considered to support Vanzolini's 1951 scheme of five subspecies, defined by color pattern and by four meristic characters, and differentiated in consequence of Quaternary paleoecological events. Recent developments relating to models of differentiation in Quaternary tropical South America are briefly considered. PMID:12563414

Vanzolini, Paulo Emilio

2003-01-24

294

Dueños, intrusos e intermediarios. El reclamo de tierras entre los Mbyá Guaraní (Valle del Cuñapirú, Misiones, Argentina)  

Microsoft Academic Search

La selva paranaense es el espacio habitado por los Mbya . Las etnías guaraní-Mbyá se han caracterizado por su amplia movilidad, desde la época pre-y post-hispánica hasta la actualidad, si bien cada vez con mayores restricciones, pequeños grupos de personas se desplazaban entre los actuales territorios de Paraguay, Brasil y Argentina a fin de sostener sus modos tradicionales de vida.

María Rosa Martínez; Marta Crivos; Laura Teves

295

Indigeneity and consciousness in Brazil: Analyzing Sousa (1587) and Mendes Jr (1912)  

Microsoft Academic Search

This article analyzes understandings of indigeneity and legal consciousness in Brazil in the 16th, early 20th and 21st centuries. The article focuses on the often ignored work of João Mendes Junior, written in 1912, about the indigenous peoples of São Paulo and on Gabriel Soares de Sousa’s Tratado descritivo do Brasil em 1587 [A Descriptive Treatise of Brazil in 1587].

Rodrigo Ferrari-Nunes

2011-01-01

296

Anthropogenic air pollution and respiratory disease-related emergency room visits in Rio Branco, Brazil--September, 2005  

Microsoft Academic Search

J Bras Pneumol. 2008 Jan;34(1):42-6. [Anthropogenic air pollution and respiratory disease-related emergency room visits in Rio Branco, Brazil--September, 2005]. [Article in Portuguese] Mascarenhas MD, Vieira LC, Lanzieri TM, Leal AP, Duarte AF, Hatch DL. Source: Programa de Epidemiologia Aplicada aos Serviços do Sistema Unico de Saúde, Secretaria de Vigilância em Saúde, Ministério da Saúde, Brasil Abstract: Air pollution is a

DOUGLAS L. HATCH

2008-01-01

297

Mercury in a northeastern Brazilian mangrove area, a case study: potential of the mangrove oyster Crassostrea rhizophorae as bioindicator for mercury  

Microsoft Academic Search

The Channel of Santa Cruz is a mangrove area in northeastern Brasil 40 km north of Recife. Until 1991 a chlor-alkali factory\\u000a discharged large amounts of mercury into the main tributary of the channel, the Rio Botafogo. The objective of this study\\u000a was to assess the potential of the mangrove oyster Crassostrea rhizophorae as a bioindicator for mercury in this

U. Meyer; W. Hagen; C. Medeiros

1998-01-01

298

GERMINABILIDADE E TOLERÂNCIA À DESSECAÇÃO EM SEMENTES DE MILHO COLHIDAS EM DIFERENTES ESTÁDIOS DE MATURAÇÃO  

Microsoft Academic Search

Aiming at obtaining additional subsides to decision-making concerning harvest time and corn seeds drying on ears, biochemical and physiological aspects of seeds harvested at different milk line stages and submitted to artificial drying were studied. The experiments were accomplished at UFLA Seed Laboratory in association with Monsanto do Brasil S.A. Seeds of the hybrids AG-9090, AG-9010, DKB-350 and DKB- 747,

RENZO GARCIA VON PINHO; ÉDILA VILELA DE RESENDE VON PINHO; RENATO MENDES GUIMARÃES; FABRÍCIO ELIAS DE OLIVEIRA FREITAS

299

Major Ions Fluxes and DOC in Rainfall and Throughfall at the Tapajos National Forest - Belterra, Para, Brazil  

Microsoft Academic Search

The Tapajós National Forest -(FLONA Tapajós), an area of 600,000 ha of protected forest, is located 50km south Santarem (Pará, Brasil). The FLONA receives approximately 2000 mm.y-1 of rainfall and the forest is evergreen. The tropical forest nutrient cycle depends upon inputs from the atmosphere and from rock weathering. Internally, throughfall and stemflow transfer nutrients from the vegetation to the

R. C. Oliveira; M. Keller; P. Crill; W. de Mello; J. Dias; K. Oliveira; E. Souza Neto; S. Albuquerque; C. Pereira

2004-01-01

300

Genetic studies of the Macushi and Wapishana Indians  

Microsoft Academic Search

Blood samples from 509 Macushi (3 villages) and 623 Wapishana (11 villages) of Northern Brasil and Southern Guyana have been analyzed with respect to the phenotype and gene frequencies at the following 12 polymorphic loci: AB0, Kell-Cellano, MNSs, Rh, P, Duffy, Kidd, Diego, Lewis, Group-specific component, and the immunoglobulin allotypes of the Gm and Inv systems. The data suggest that

James V. Neel; Henry Gershowitz; Richard S. Spielman; Ernest C. Migliazza; Francisco M. Salzano; William J. Oliver

1977-01-01

301

ONE-PARENT NESTING IN CINNAMON-VENTED PIHAS (LIPAUGUS LANIOIDES, COTINGINAE, TYRANNIDAE)  

Microsoft Academic Search

Resumo. Cuidado do ninho por um adulto em cricrió-suisso (Lipaugus lanioides, Cotinginae). Dois ninhos de cricrió-suisso das matas serranas do Espírito Santo, Brasil, mostraram que o comportamento anti-preda- dor pode auxiliar na explicação de não monogamia. Contrário à idéia que a frugivoria ocasiona promiscui- dade, a espécie é um tiranídeo de pernas curtas, alimentando-se de insetos grandes como gafanhotos e

Edwin O. Willis; Yoshika Oniki

1998-01-01

302

Tubular microporous alumina structure for demulsifying vegetable oil\\/water emulsions and concentrating macromolecular suspensions  

Microsoft Academic Search

A microstructure composed of alumina–silica (mullite, 3Al2O3·2SiO2) was molded into tubes to be used in a microfiltration process for separating water\\/vegetable oil emulsions and to concentrate macromolecular suspensions. The microporous tubes were produced by the precipitation method using raw material supplied by Rhodia do Brasil Ltda, and sintered at a final temperature of 1450°C. The microporous medium was characterized by

Sérgio R. Fontes; Viviane M. Silva Queiroz; Elson Longo; Marcus V. Antunes

2005-01-01

303

Petrophysical analysis of limestone rocks by nuclear logging and 3D high-resolution X-ray computed microtomography  

Microsoft Academic Search

This study presents the pore-space system analysis of the 2-ITAB-1-RJ well cores, which were drilled in the São José do Itaboraí Basin, in the state of Rio de Janeiro, Brasil. The analysis presented herein has been developed based on two techniques: nuclear logging and 3D high-resolution X-ray computed microtomography. Nuclear logging has been proven to be the technique that provides

M. F. S. Oliveira; I. Lima; P. L. Ferrucio; C. J. Abreu; L. Borghi; R. T. Lopes

2011-01-01

304

[Circuses and clowns. Experimental contribution to nursing methodology].  

PubMed

The description of a very original experience of health education in a region of Amazonia, Brasil (based on the utilization of techniques of population theater) is the occasion for a reflection on the possibilities and on the opportunity of adopting also for the nursing practice of western countries methodologically innovative approaches, which could allow a caring attention oriented not only to the problem of assistance, but more basically to the cultural components of the needs and expectations of defined populations. PMID:2112775

Tognoni, G

305

Elastic scattering and total reaction cross section of {sup 6}He+{sup 120}Sn  

SciTech Connect

The elastic scattering of {sup 6}He on {sup 120}Sn has been measured at four energies above the Coulomb barrier using the {sup 6}He beam produced at the RIBRAS (Radioactive Ion Beams in Brasil) facility. The elastic angular distributions have been analyzed with the optical model and three- and four-body continuum-discretized coupled-channels calculations. The total reaction cross sections have been derived and compared with other systems of similar masses.

Faria, P. N. de; Lichtenthaeler, R.; Pires, K. C. C.; Lepine-Szily, A.; Guimaraes, V.; Mendes, D. R. Jr.; Barioni, A.; Morcelle, V.; Morais, M. C.; Camargo, O. Jr.; Alcantara Nunez, J. [Instituto de Fisica-Universidade de Sao Paulo, C. P. 66318, 05389-970 Sao Paulo, SP (Brazil); Moro, A. M. [Departamento de FAMN, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla (Spain); Arazi, A. [Laboratorio Tandar, Comision Nacional de Energia Atomica, Av. del Libertador 8250, 1429 Buenos Aires (Argentina); Rodriguez-Gallardo, M. [Departamento de FAMN, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla (Spain); Instituto de Estructura de la Materia, CSIC, Serrano 123, E-28006 Madrid (Spain); Assuncao, M. [Universidade Federal de Sao Paulo, Campus Diadema, 09941-510 Sao Paulo, SP (Brazil)

2010-04-15

306

Surface Radiative Fluxes from GOES-E over the Amazon Basin: Model Comparison  

NASA Astrophysics Data System (ADS)

In this study reported are results from an algorithm intercomparison initiative aimed at the development of improved estimates of surface radiative fluxes from satellite observations over the Amazon Basin. Three algorithms are used: (UMD-SRB, University of Maryland; GL1.2, INPE, Brazil; and Brasil-SR, INPE and University of Santa Catarina, Brazil). The algorithms are physically based, yet differ in their implementation and the way they address issues specific to this region, such as aerosols from biomass burning. Two fifteen day periods in 2005 were selected representing the rainy and dry seasons. The same satellite observations from GOES E were used by all the models. Ground truth from existing stations in the Amazon as well as from a new solar monitoring network of high quality have been used in evaluation. Using daily mean values for the March rainy season, it was found that: 1) the Brasil-SR and UMD-SRB estimates bear a close resemblance; 2) higher irradiances for Petrolina (semi-arid region in Northeast Brazil) are best described by the UMD-SRB and Brasil-SR, probably due to better assessment of water vapor column and absorption parameterization; 3) the GL1.2 results shows a systematic deviation, underestimating daily mean by about 20 Wm-2, but have lower dispersion than UMD-SRB or Brasil-SR; 4) irradiance interval 180 < E < 250 Wm-2 seems better described by GL1.2. This last behavior may be related to better assessment of cloudiness under partial coverage situations. September is characterized by intensive biomass burning in several Brazilian regions, particularly in the Amazon. The Northeast region is not affected by aerosols and estimates from all three models are in close agreement and have similar characteristics to those of March. For the Amazon sites: 1) lower irradiances (for overcast days) are correctly assessed; 2) UMD-SRB and Brasil-SR overestimate solar radiation, especially for higher irradiances (lower cloudiness); 3) GL1.2 model does not include aerosol effects and also overestimates the surface fluxes, but has better agreement with observations for lower irradiances. These preliminary results on surface radiative fluxes from all three models show similar accuracies when evaluated against ground observations. The advantages of each model will be synthesized to produce a version that produces best results in the Amazon Basin.

Ceballos, J. C.; Pinker, R. T.; Pereira, E. B.; Martins, F. R.; Kato, H.; de Miranda, R. M.; Wonsick, M.

2006-12-01

307

Brazilian structural provinces: An introduction  

NASA Astrophysics Data System (ADS)

The territory of Brazil coincides almost entirely with the South American Platform, the crystalline core of the continent. Its basement is composed of ancient metamorphic and igneous rocks and it has not suffered any tectonic regeneration since the beginning of the Phanerozoic. Sedimentary rocks with almost horizontal bedding cover this crystalline basement. This latter shows ages as old as Early Precambrian, although ages between 500 and 1000 m.y. are conspicuously frequent. The cratonic areas became consolidated more than 1700 m.y. ago, whereas the fold belts formed essentially between 500 and 1700 m.y. ago. The sedimentary cover accumulated from the Early Silurian in three large intracratonic basins, until the platform became completely stabilized. A Late Jurassic to Early Cretaceous reactivation, caused by the break-up of the ancient Gondwana continent, created another basin sequence chiefly along the Atlantic continental margin. Based on the nature of the crystalline basement rocks and the sedimentary cover, ten structural provinces can be distinguished: Rio Branco Province, in the north of the country, occupied by the Guyana Shield and still only poorly known, with an important fold belt developed during the so-called Transamazonian Cycle (2000 ± 200m.y.) with high-grade metamorphic rocks and only slight influence of later events. Tapajós Province, in central Brazil, corresponding to the Amazonas or GuaporéCraton, showing chiefly Precambrian crystalline rocks and behaving as an cratonic area during the Phanerozoic. Sa˜o Francisco Province, located on the Atlantic Shield, with its basement covered by rocks of different ages, chiefly affected by the Brasiliano Cycle (between 1000 and 500 m.y.) and constituting another cratonic area. Tocantins Province, between the Amazonas and Sa˜o Francisco Cratons, with the oldest rocks in its centre (ages over 2600 m.y.), and at the eastern and western borders metamorphic sequences of various fold belts, and almost no Phanerozoic deposits. Mantiqueira Province, located along the southern part of the Atlantic coast, affected chiefly by the Brasiliano folding cycle. Borborema Province, in the northeast Brazilian fold belt, affected by the Brasiliano Cycle in a very complex way, and with important faulted zones. It was reactivated in Phanerozoic times, when also sedimentary covers accumulated. Amazonas Province, represented by the Amazonas sedimentary basin (syneclise), and subdivided into four parts by three important arcs. Parnaiba Province, coinciding with the Piauf — Maranha˜o syneclise, and filled with a rather thick sedimentary sequence. ParanáProvince, the sedimentary basin of southern Brazil, in which the well-known Late Paleozoic glaciation features are found, and which possesses an extensive cover of basaltic rocks of Late Jurassic to Early Cretaceous age. Coastal Province and Continental Margin, the youngest structural unit, developed during the separation of the continent and represented by rift-valleys and coastal basins filled with Mesozoic-Cenozoic deposits of various kinds.

de Almeida, F. F. M.; Hasui, Y.; de Brito Neves, B. B.; Fuck, R. A.

1981-04-01

308

IAU (Maser) Symposium 287 Summary  

NASA Astrophysics Data System (ADS)

Almost exactly twenty years ago, the first of a series of conferences dedicated to cosmic masers took place in Arlington, Virginia in the USA (March 9-11, 1992). Two more followed, each on a different continent, in Mangaratiba, near Rio de Janeiro, Brasil (March 5-10, 2001) and in Alice Springs, Australia (March 12-16, 2007). As at all others, a large part of the international maser community convened from January 29 to February 3, 2012 in splendid Stellenbosch, South Africa, to discuss the state of the art of the field.

Menten, Karl M.

2012-07-01

309

Positions of Jupiter, Galilean satellites and Pluto obtained in May 1980 with GPO of the ESO, La Silla  

NASA Astrophysics Data System (ADS)

In May 1980 H. Debehogne (ORB) and R. R. de Freitas Mourão (Observatório Nacional, Rio de Janeiro, Brasil) observed Jupiter, galilean satellites and Pluto at the GPO (D = 40 cm, f = 4 m). Measures and reductions were performed at the Observatoire Royal de Belgique and at the Observatório do Valongo with the Ascorecord measuring machines (0.1 ?) and by means of five reference stars on the UNIVAC 1400 (Uccle) and on the Burroughs 6700 (NCE, Núcleo de Computação Eletronica da UFRJ) computers (SAO Catalogue, dependence and Least Squares methods).

Debehogne, H.; Machado, L. E.; Caldeira, J. F.; Vieira, G. G.; Netto, E. R.

1981-10-01

310

[Atypical presentation of cutaneous sporotrichosis in an alcoholic patient].  

PubMed

Sporotrichosis is a subcutaneous mycosis with a high prevalence in Brasil. It is caused by the dimorphic fungus Sporothrix schenckii, and may lead to different clinical presentations. The disseminated cutaneous form is uncommon and corresponds to 4 percent of the total number of cases. We report a case of atypical disseminated sporotrichosis in an alcoholic patient, whose culture for fungi revealed the presence of Sporothrix schenckii. The patient was treated with itraconazole 200 mg/day for 6 months with clinical clearing. PMID:22747936

Nassif, Priscila Wolf; Granado, Inandiara Rafaela Marco de Oliveira; Ferraz, Juliana Soares; Souza, Robson; Nassif, Aissar Eduardo

2012-06-15

311

The Flower Workshop in psychosocial rehabilitation: a pilot study.  

PubMed

We report a pilot study with the Flower Workshop, a new modality of psychosocial rehabilitation group activity. Cognitive performance in schizophrenia and other mental conditions can be impaired depending on the tasks to be executed and their respective social context. The vulnerability of these individuals can be reduced by means of cognitive and socio-affective facilitation. We conducted a pilot study to introduce the Flower Workshop in a public Mental Health Service in the city of Ribeirão Preto (São Paulo-Brasil) with 12 participants during 18 months (2002-2003). With cognitive and socio-affective facilitation, participants were able to construct vases and make flower arrangements successfully. PMID:19148821

Pereira, Alfredo; Pereira, Maria Alice Ornellas

2009-01-01

312

Population Dynamics of Dichelops melacanthus (Dallas) (Heteroptera: Pentatomidae) on Host Plants.  

PubMed

The stink bug Dichelops melacanthus (Dallas) has become one of the major pests of corn and wheat in Brasil, mainly after a shift from the conventional tillage system to the no tillage cultivation system. This fact may be due to the simultaneous occurrence of second planting corn with wheat cultivation, and the presence of wild hosts. This study aimed to evaluate the population dynamics of D. melacanthus on wild hosts adjacent to areas cultivated with corn, wheat, and soybean during the season and off-season of soybean cultivation. Weekly surveys were conducted in the region of Londrina, PR, Brasil from the beginning of July 2007 up to the end of June 2008 using the square meter method. Corn (Zea mays), soybean (Glycine max), tropical spiderwort (Commelina benghalensis), hairy indigo (Indigofera hirsuta), crotalaria (Crotalaria pallida), wheat (Triticum aestivum), and signal grass (Brachiaria decumbens) were identified as hosts of D. melacanthus. Signal grass was the host in which stink bug adults were found in higher numbers, while nymphs and adults were consistently collected on tropical spiderwort. Although nymphs completed their development on tropical spiderwort seeds, this host was found less suitable than soybean seeds. PMID:23949747

Silva, J J; Ventura, M U; Silva, F A C; Panizzi, A R

2013-01-18

313

Genetic diversity in somatic mutants of grape (Vitis vinifera) cultivar Italia based on random amplified polymorphic DNA.  

PubMed

Random amplified polymorphic DNA (RAPD) markers were used to detect polymorphism and to examine relationships among four table grape clones from northwestern Paraná, in southern Brazil. The 10 primers used for RAPD fingerprints generated 126 reproducible fragments, of which 63, 68, 76, and 72 were polymorphic in cultivars Italia, Rubi, Benitaka, and Brasil, respectively. Among the primers, OPP-08 generated the highest number of fragments, whereas OPE-15 was the most efficient for discriminating polymorphic fragments. The distribution of the clones by cluster analysis indicated that there were no differences in RAPD markers between the colored mutant and the original clone (cultivar Italia), supporting the hypothesis that the non-colored and the colored mutant are the same cultivar. However, we found high levels of polymorphism within and between the cultivars Italia, Rubi, Benitaka, and Brasil (65.1%), contrary to a previous hypothesis that the four clones are genetically uniform. This confirmed our expectation of genetic variation among the clones and within each clone. We conclude that the primers are useful for analyzing the development of the genetic diversity within each of these clones. PMID:19224464

Maia, S H Z; Mangolin, C A; Collet, S A O; Machado, M F P S

2009-01-13

314

[Susceptibility of Biomphalaria glabrata to Schistosoma mansoni from Venezuela and Brazil].  

PubMed

Schistosoma mansoni partially develops its life cycle into snails of the Family Planorbid. Biomphalaria glabrata represents an important host-intermediate. This paper reports experimental infection with miracidia vs. snail in sympatric and parapatric combination. The infection assay to sympatric combination were: BH snail (Belo Horizonte, Brasil) vs. a common geographic origin parasite, and Barbula, Carabobo State, Venezuela vs. SM Venezuela parasitic. The parapatric combination were: BH snail vs. SM; Barbula vs. BH; Caripe Monagas State, Venezuela vs. SM and Caripe vs. SM. During the study period was observed not miracid penetration. The infection percentage ranged from 88.89% in Barbula vs. SM combination to 0.00% in the Caripe vs. BH and BH vs. SM combination. We concluded which different existence of susceptibility from evaluated combination. PMID:10932760

Moreno Alvarez, M J; Delgado, V

315

[Fifty years of green memory: nursing care for the environment].  

PubMed

This paper describes the activities related to the 50th anniversary celebration of the Nursing School of the Federal University of Rio Grande do Sul, Brazil. It aimed at surveying the trees of the florula of the green area that surrounds the School and rescuing the memory of those who planted each specimen. The orphan trees were offered to the teaching and administrative staff for adoption. Adding up the erva-mate and the pau-brasil trees planted during the celebration, there are a total of 100 trees distributed into 18 families and 29 species out of which 15 are native and 14 are exotic trees. The erva-mate tree and its monument represent the landmark of this significant date. PMID:15058829

Wächter, Maria Isaura Fradera; Piccinini, Gema Conte; Matzenbacher, Nelson Ivo

2003-08-01

316

[Mortality from epilepsy in Brazil, 1980-2003].  

PubMed

The objective of this study is to contribute to the analysis of the behavior of mortality from epilepsy in Brazil over the period 1980-2003. The data were obtained through the SIM/MS (Mortality Information Subsystem of the Brazilian Health Department) and from the demographic database of the IBGE (Brazilian Institute of Geography and Statistics). There was a reduction of 20,35% in the mortality rate from epilepsy in Brasil (1,13/100.000 in 1980 to 0,9/100.000 in 2003). The epidemiological analysis of the mortality rate showed: predominance of males; higher mortality coefficient in the advanced age groups; expressive increase of mortality from epilepsy in the Brazilian Northeast over the studied period. The reduction of mortality from epilepsy in Brazil evidenced in this study is in accordance with international standards. The reasons leading to the increase of mortality from epilepsy in certain population groups, particularly in the elderly, were discussed. PMID:19142312

Ferreira, Israel de Lucena Martins; Tabosa e Silva, Tiago Pessoa

317

Cetacean diversity on the Parnaiba Delta, Maranhão state, northeastern Brazil.  

PubMed

The increase in the research of cetacean surveys on the Brazilian coast has brought new data on the distribution of species never reported before. The present work reviews the current knowledge on cetaceans species and extends this knowledge with an analysis of cetaceans stranded in the Parnaiba Delta, on the coast of Maranhão State, Brazil. The studies on cetacean diversity on the coast of the Parnaíba Delta were made from August 2004 to August 2006. Fourteen strandings were reported, representing six distinct species, such as the estuarine dolphin (Sotalia guianensis), humpback whale (Megaptera novaeangliae), Bryde's whales (Balaenoptera edeni), dwarf minke whale (Balaenoptera acutorostrata), pigmy killer whale (Feresa attenuata), sperm whale (Physeter macrocephalus) and two specimens which have not yet been identified. The significant degree of cetacean diversity in the region shows that the Parnaíba Delta is, possibly, of an important area for cetacean studies in Brasil. PMID:18833476

Magalhães, F A; Tosi, C H; Garri, R G; Chellappa, S; Silva, F L

2008-08-01

318

[Residual concentration of hexachlorocyclohexane in a contaminated site in Cidade dos Meninos, Duque de Caxias, Rio de Janeiro, Brazil, after calcium oxide treatment].  

PubMed

Hexachlorocyclohexanes (HCHs) are currently considered potentially carcinogenic to humans. In Brasil, severe soil contamination by HCHs has been identified at Cidade dos Meninos, Duque de Caxias, Rio de Janeiro, where an old HCH factory was abandoned 40 years ago, leaving 1,700 local residents at risk. Calcium oxide treatment was performed on the most heavily contaminated (focus) area. Analysis of superficial soil samples collected years after treatment still showed high residual HCH. Contamination levels as high as 6,200mg/Kg and 7,320mg/Kg were found for alpha- and beta-HCH isomers. For the gamma- and delta-HCH isomers, concentrations reached up to 140mg/Kg and 530mg/Kg, respectively. The results showed that calcium oxide treatment was not efficient to decontaminate the soil in this area. PMID:12764460

de Oliveira, Rosália Maria; Bastos, Lúcia Helena Pinto; de Oliveira e Dias, Ana Elisa Xavier; da Silva, Sérgio Alves; Moreira, Josino Costa

2003-05-15

319

[Redescription of Parodon caliensis and Saccodon dariensis (Characiformes: Parodontidae)].  

PubMed

Redescription of Parodon caliensis and Saccodon dariensis (Characiformes: Parodontidae). Parodontidae family is a group of Characiformes fishes distributed throughout South America and parts of Panama, except in the basins of the southern Bahia state in Brasil on the Atlantic coast, Patagonia and the Amazon river channel. The family includes three genera: Apareiodon Eigenmann 1916, Parodon Valenciennes 1849 y Saccodon Kner 1863, 28 recognized species and two valid genera: Parodon and Saccodon. Redescription of Parodon caliensis and Saccodon dariensis is carried out based on type, and topotypic material from Colombia. Significant differences were found in morphometric, meristic, osteologic and color characters. S. dariensis is widely distributed but P. caliensis is restricted to the upper Cauca River drainage. Three species are considered herein as synonyms of S. dariensis: Apareiodon dariensis, A. compressus and S. caucae. Sexual dimorphism is described for both species. PMID:20737840

Londoño-Burbano, Alejandro; Román-Valencia, César

2010-09-01

320

[Sistematical mass roentgenphotography: economical unviability and eventual danger regarding exposure to radiations. 1976].  

PubMed

The invention of roentgenphotography by Manoel de Abreu and its consequent widespread use in Brasil are described. Due to legal requirements, children, young people and pregnant womem are submitted repeatedly and, very often, to unnecessary examinations. After the atomic explosions of Hiroshima and Nagasaki and the knowledge that even minimum dosis of ionizing radiation can cause serious somatic and genetic risks, the widespread use of abreugraphy became cause of serious concern for Public Health workers, since its advantages are outnumbered by its cost and by the risk it offers to those submitted to this type of examination. According to recent litterature on the subject and following specific recommendations of the World Health Organization, abolition of widespread use of abreugraphy is proposed, with the elimination of the Brazilian legal requirements which make this method of examination mandatory in many situations. PMID:16810360

Gikovate, Febus; Nogueira, Diogo Pupo

2006-06-23

321

LATINMAG: A Latin-American Collaborative Network in Paleo, Geo, Rock and Environmental Magnetism  

NASA Astrophysics Data System (ADS)

In recent years research in paleo, geo, rock and environmental magnetism has experienced significant development in Latin-America with new research groups being settled in several countries including Argentina, Brasil, Chile, Colombia, Cuba, Mexico, Venezuela and Uruguay (among others). The LATINMAG network, established in May 2007, follows previous attempts to congregate ancient and newborn Latin-American research groups. It was conceived as a forum for scientific discussion and regional collaboration of these groups, including scientific meetings and interchange programs for students and researchers. Its first bi-annual meeting is going to be held in November 2008 in Caracas, Venezuela. More information is available at http://www.geofisica.unam.mx/LIMNO/LATINMAG.

Constanzo, V.; Gogichaishvili, A.; Rapalini, A.; Trindade, R.

2007-12-01

322

Characterization of nitrogen-fixing bacteria isolated from field-grown barley, oat, and wheat.  

PubMed

Diazotrophic bacteria were isolated from the rhizosphere of field-grown Triticum aestivum, Hordeum vulgare, and Avena sativa grown in various regions of Greece. One isolate, with the highest nitrogen-fixation ability from each of the eleven rhizospheres, was selected for further characterisation. Diazotrophic strains were assessed for plant-growth-promoting traits such as indoleacetic acid production and phosphate solubilisation. The phylogenies of 16S rRNA gene of the selected isolates were compared with those based on dnaK and nifH genes. The constructed trees indicated that the isolates were members of the species Azospirillum brasilense, Azospirillum zeae, and Pseudomonas stutzeri. Furthermore, the ipdC gene was detected in all A. brasilence and one A. zeae isolates. The work presented here provides the first molecular genetic evidence for the presence of culturable nitrogen-fixing P. stutzeri and A. zeae associated with field-grown A. sativa and H. vulgare in Greece. PMID:21887633

Venieraki, Anastasia; Dimou, Maria; Vezyri, Eleni; Kefalogianni, Io; Argyris, Nikolaos; Liara, Georgia; Pergalis, Panagiotis; Chatzipavlidis, Iordanis; Katinakis, Panagiotis

2011-09-02

323

Heat generated by Er:YAG laser in the pulp chamber of teeth submitted to removal of dental tissue and composite resin  

NASA Astrophysics Data System (ADS)

The knowledge about and control of thermal energy produced by Er:YAG laser after irradiating hard dental tissues and compound resin is important because the pulp, like all vital biological tissue, has a certain capacity for supporting stimulus. The objective of this study was to analyze the thermal variation generated by Er:YAG laser (?=2.94?m) during the preparation of a Class I cavity in the dental structure and in the removal of microhybrid Z100 (3M) compound resin. An evaluation was made of 30 maxillary human pre-molar teeth from the bank of the Endodontic Laboratory Center of Ribeirao Preto Dental School, Brasil. The sample was divided into 6 groups of 5 teeth each: Group 1, preparation of Class I cavity with Er:YAG laser (350mJ, 3Hz, 343 impulses, 120J, 113 seconds); Group 2, preparation of Class I cavity with Er:YAG laser (350mJ, 4Hz, 343 impulses, 120J, 81 seconds); Group 3, preparation of Class I cavity with Er:YAG laser (350mJ, 6Hz, 343 impulses, 120J, 58 seconds); Group 4, removal of compound resin from Class I preparation with Er:YAG laser (350mJ, 3Hz, 258 impulses, 90J, 85 seconds); Group 5, removal of compound resin from Class I preparation with Er:YAG laser (350mJ, 4Hz, 258 impulses, 90J, 67 seconds); Group 6, removal of compound resin from Class I preparation with Er:YAG laser (350mJ, 6Hz, 258 impulses, 42 seconds). The laser used was KaVo Key 2 (Biberach, Germany), ?=2,94?m, P=3 Watts, pulse duration of 250?s, with air-water cooling. The increase in temperature during dental preparation and the removal of the compound resin was evaluated by means of a Tektronix DMM916 Thermocouple (Consitec, Brasil). The results showed that the application of laser for the removal of the hard dental tissues and for the removal of compound resins with the pulse frequencies 3, 4 and 6 Hz did not generate heating greater than 3.1°C and remained within the histopathological limits permitted for pulp tissue (5.5°C) and there was a significant statistical difference between the heat generated by the application of laser in the removal of the hard dental tissues and in the removal of compound resins (p<0.01). The average increase in temperature of the compound resin component was greater than the tooth.

Zanin, Fatima; Brugnera, Aldo, Jr.; Pecora, Jesus D.; Pinheiro, Antonio; Spano, Julio; Barbin, Eduardo; Marchesan, Melissa A.

2004-05-01

324

[Evaluation of the quality of propranolol and enalapril tablets supplied in the public health system in a southern Brazilian city].  

PubMed

The acquisition of medication by the Brazilian public health service through bidding processes based on the lowest price criterion is a source of concern with respect to the quality of the products offered to the population. The scope of this work was to evaluate the quality of Enalapril 10 mg and Propranolol 40 mg tablets bought via the bidding process and supplied by the public health system in a city in the state of Santa Catarina, Brasil, over the course of a year. The visual aspect, weight variation, friability, drug content and dissolving time were analyzed. Out of seven lots, five presented quality deviation. Irregularities were found in the visual aspect, weight variation, friability and active ingredient. The evaluation of the quality of medication, besides ensuring the quality of the products supplied by the health system and safe usage by patients, is also a tool to evaluate medical supply companies and ensure the enhancement of the bidding process. The implementation of a management system that includes the evaluation of medical supply companies, improvement of the bidding process with clear specifications about the quality of the medicines bought are all recommended to ensure product safety. PMID:22267043

Bianchin, Mariana Domingues; Blatt, Carine Raquel; Soares, Alessandra de Sá; Külkamp-Guerreiro, Irene Clemes

2012-02-01

325

[Off-label prescriptions in Brazil and in the US: legal aspects and paradoxes].  

PubMed

The scope of this study is to review the legal aspects of off-label prescription in Brazil compared to the US regulatory environment, to verify whether or not it derives from the structure of the current administrative regulatory process. It involved a bibliographic study in English and Portuguese in public databases of legislation, articles, books and dissertations using the key words 'off-label,' 'health law,' 'health regulation,' with respective translations into English. In Brasil and the US, health surveillance institutions have no jurisdiction on medical practices and cannot restrict off-label prescriptions beyond educational campaigns. Indications of use are a recommendation of minimum safety and efficacy for product commercialization, but are not a restrictive factor in practice, which does not exonerate physicians from civil liability lawsuits. Public measures to restrict off-label prescriptions are more common in the control of the incentives and dissemination of information to the medical community. Off-label prescription is a risk-benefit assessment made by the clinician and the pros and cons are described in the literature. Brazilian legislation and its stance on the subject still lack greater investigation and subsequent measures. PMID:23546211

Nobre, Patricia Fernandes da Silva

2013-03-01

326

Mini-winkler extractor and pitfall trap as complementary methods to sample formicidae.  

PubMed

The aim of the present study was to evaluate the use of mini-Winkler extractor and pitfall traps as appropriate and complementary methods to sample ant communities in the phytophysiognomy mosaic in the Poconé Pantanal region, state of Mato Grosso, Brasil. Seven units were studied for landscape, located within a 25 km(2) collection area, formed by thirty 250-m transects, at 1-km intervals in a 5?×?5 km area. Five collection points were marked in each transect at 50-m intervals, totaling 150 points. A collection was made at each sampling point with mini-Winkler extractor and pitfall traps. Using the mini-Winkler extractor, 1,088 individuals were collected distributed in 20 genera and 55 species, with Solenopsis invicta Buren and Pheidole (gr. biconstricta) sp.1 as the most frequent ants. Using pitfall traps, 2,726 individuals distributed in 24 genera and 48 species were sampled and Dorymyrmex (gr. pyramicus) sp.1 and Pheidole (gr. biconstricta) sp.1 were the most frequent species. A significant difference between the methods was observed in measured species number. The Principal coordinates analysis discriminated two species groups exclusively sampled by the mini-Winkler extractor and another by the pitfall methods. Therefore, it was concluded that these methods were complementary for ant diversity inventories in the Poconé Pantanal region. PMID:23949854

Silva, F H O; Delabie, J H C; Dos Santos, G B; Meurer, E; Marques, M I

2013-04-26

327

Impact of South Atlantic Anomaly on the SPOT and Envisat DORIS observations  

NASA Astrophysics Data System (ADS)

The South Atlantic Anomaly (SAA) refers to the area where the Earth's inner Van Allen radiation belt comes closest to the Earth's surface, leading to increased levels of cosmic radiation at lower altitudes than elsewhere over the surface. A strong effect of the SAA on the quality of Jason-1 DORIS (Doppler Orbitography and Radiopositioning Integrated by Satellite) observations is well known and several relevant analyses has been published. However, the significant effect of SAA on the other DORIS satellites has not been known. The goal of the paper is to bring a detail analyses of possible SAA effect on the SPOT -2,4,5 and the Envisat DORIS observations. The resulted zenithal total delay (ZTD), oscillator frequency offset and station coordinates, estimated using single-satellite data processing, are presented and discussed. A DORIS-GNSS ZTD comparison is done in addition. A significant bias was detected when processing SPOT-5 data for South American stations Santiago in Chille, Cachoeira Paulista in Brasil and Arequipa in Peru. Even if the detected bias is much lower than in case of Jason-1 and doesn't degrade the DORIS observation so strongly, possible future approach of the SPOT-5 SAA effect elimination (model of oscillator behavior or exclusion of the most corrupted observations) could improve the DORIS solutions. A comparable level of SAA-related effect was not detected for any other of the analyzed satellites.

Stepanek, Petr; Dousa, Jan; Filler, Vratislav; Hugentobler, Urs

2010-05-01

328

Different approaches how to deal with the South Atlantic Anomaly effect on the SPOT-5 DORIS measurement  

NASA Astrophysics Data System (ADS)

The South Atlantic Anomaly (SAA) refers to the area where the Earth's inner Van Allen radiation belt comes closest to the Earth's surface, leading to increased levels of cosmic radiation at lower altitudes than elsewhere over the surface. A strong effect of the SAA on the quality of Jason-1 DORIS observations is well known and documented. However, the significant effect of SAA on the SPOT-5 DORIS observations has been observed as well by recent DORIS data analyses. The SAA affects the frequency of onboard oscillator and consequently estimated values of the parameters as the beacon frequency offset, the station height and the troposphere zenithal delay. The SAA effects mainly the SPOT-5 observations of the three stations in South America, i.e., Cachoeira Paulista (Brasil), Arequipa (Peru) and Santiago (Chile). The offset of the estimated station height achieves 27 cm for the SPOT-5 individual solution and the most biased station Cachoeira Paulista. Since the general quality of the SPOT-5 measurements is very good, the complete exclusion of the satellite from the combination is not kind of a rational approach. One possibility how to handle the problem is to exclude the regional stations from the solutions. There are two different ways, total elimination or using these data for orbit determination but not for the multi-satellite coordinate estimation. Another possibility is based on the application of the data corrective model. A simple empirical data corrective model has been developed, based on statistical analyses of the post-fit residuals.

Stepanek, P.; Filler, V.; Dousa, J.; Rodriguez Solano, C.; Hugentobler, U.

2012-04-01

329

VIII Olimpíada Brasileira de Astronomia e Astronáutica  

NASA Astrophysics Data System (ADS)

Neste trabalho apresentamos as motivações pelas quais organizamos, em conjunto, pela primeira vez, a Olimpíada Brasileira de Astronomia incluindo a Astronáutica, em colaboração com a Agência Espacial Brasileira. Esta ampliação contribuiu para atrair ainda mais alunos, professores, escolas e patrocinadores para participarem desta Olimpíada. Em 2005 participaram da VIII Olimpíada Brasileira de Astronomia e Astronáutica (VIII OBA) 187.726 alunos distribuídos por 3.229 escolas, pertencentes a todos os estados brasileiros, incluindo o Distrito Federal. O crescimento em número de alunos participantes foi 52,4% maior do que em 2004. Em abril de 2005 organizamos, em Itapecerica da Serra, SP, um curso para os 50 alunos previamente selecionados e participantes da VII OBA e ao final selecionamos, dentre eles, uma equipe de 5 alunos, os quais representaram o Brasil na X Olimpíada Internacional de Astronomia, na China, em outubro de 2005. Ganhamos, pela primeira vez, uma medalha de ouro naquele evento. Em Agosto de 2005, organizamos a VIII Escola de Agosto para 50 alunos e respectivos professores, em Águas de Lindóia, SP, juntamente com a XXXI reunião anual da Sociedade Astronômica Brasileira (SAB). Em novembro de 2005 realizamos a I Jornada Espacial, em São José dos Campos, com 22 alunos e 22 professores selecionados dentre os participantes que melhores resultados obtiveram nas questões de Astronáutica da VIII OBA. Neste trabalho detalhamos os resultados da VIII OBA bem como as ações subseqüentes.

Garcia Canalle, João Batista; Villas da Rocha, Jaime Fernando; Wuensche de Souza, Carlos Alexandre; Pereira Ortiz, Roberto; Aguilera, Nuricel Villalonga; Padilha, Maria De Fátima Catta Preta; Pessoa Filho, José Bezerra; Soares Rodrigues, Ivette Maria

2007-07-01

330

Norwegian Offshore Stratigraphic Lexicon (NORLEX)  

NASA Astrophysics Data System (ADS)

The Norwegian Offshore Stratigraphic Lexicon (NORLEX) provides a relational stratigraphic database for the North Sea, Norwegian Sea, Barents Sea and Svalbard. Both regional lithostratigraphy and biostratigraphy are being substantially updated, following guidelines laid out in the International Stratigraphic Guide. The main body of information developed is available as a petroleum consortium (oracle-style) database, and the new lithostratigraphic definitions as a public domain (paper) document. NORLEX is presented as a browsing website via the internet at http://www.nhm.uio.no/norlex. Seismic cross-sections, core photographs, well logs, field outcrops, microfossil occurrences and other vital attributes are relationally cross-linked. In addition, there are menus for instantly finding updated formation and member tops or microfossil events in all wells, plus a map contouring routine for unit thicknesses and depths. Several new initiatives will expand data and user coverage: 1. Overhaul of Mesozoic stratigraphy, especially Triassic and Cretaceous, in the Barents Sea. 2. Coverage of East Greenland 3. Linkage to UK and Belgium and The Netherlands surface and subsurface stratigraphy 4. Creation of a Sequence Stratigraphic Framework for specific regions. 5. A national microfossil atlas to support zonations 6. Tight linkage to the basin datapacks in TimeScaleCreator Pro, as developed for Australia, New Zealand, Brasil, Gulf of Mexico, Canada and Russia. NORLEX may thus evolve to become STRATLEX, covering many basin regions.

Gradstein, Felix M.; Hammer, Oyvind; Brunstad, Harald; Charnock, Mike; Hellem, Terje; Sigve Lervik, Kjell; Anthonissen, Erik

2010-05-01

331

Energetic oxygen precipitation as a source of vibrationally excited N/sub 2//sup +/ in emissions observed at low latitudes  

SciTech Connect

Observations have been made at Mt. Haleakala, Hawaii (dip lat.approx.22/sup 0/N) and Cachoeira Paulista, Brasil (dip lat.approx.12/sup 0/S) of emissions excited by particle precipitation during periods of magnetic activity. The first negative bands of N/sub 2//sup +/ were found to have a high degree of vibrational excitation at both sites, and withi the absence of emissions attributable to hydrogen and helium, this finding leads to the interpretation that the excitation was due to a flux of precipitating oxygen atoms or ions, more plausibly the former, produced by charge exchange of ring current O/sup +/ ions with exospheric neutral constituents. More laboratory work is needed to properly interpret the data, but crude estimates of the associated energy deposition and ionization production fall in the range 10/sup -1/ to 10/sup +1/mWm/sup -2/, and 10/sup 0/-10/sup 2/ cm/sup -3/s/sup -1/ respectively.

Tinsley, B.A.; Rohrbaugh, R.P.; Sahai, Y.; Teixeira, N.R.

1982-05-01

332

In-vitro corneal transparency measuring system  

NASA Astrophysics Data System (ADS)

A system for measuring the average corneal transparency of preserved corneas has been developed in order to provide a more accurate and standard report of the corneal tissue. The donated cornea transparency is one of the features to be analyzed previously to its indication for the transplant. The small portable system consists of two main parts: the optical and the electronic parts. The optical system consists of a white light, lenses and pin-holes that collimate white light beams that illuminates the cornea in its preservative medium. The light that passes through the cornea is detected by a resistive detector and the average corneal transparency is shown in a display. In order to obtain just the tissue transparency, the electronic circuit was built in a way that there is a baseline input of the preservative medium, previous to the measurement of the corneal transparency. Manipulating the system consists of three steps: (1) Adjusting the zero percentage in the absence of light (at this time the detectors in the dark); (2) Placing the preservative medium in the system and adjusting the 100% value (this is the baseline input); (3) Preserving the cornea and placing it in the system. The system provides the tissue transparency. The system is connected to an endothelium evaluation system for Slit Lamp, that we have developed, and statistics about the relationship of the corneal transparency and density of the endothelial cells will be provided in the next years. The system is being used in a public Eye Bank in Brasil.

Ventura, Liliane; da Costa Vieira, Marcelo A.; Isaac, Flavio; Chiaradia, Caio; Sousa, Sidney J.

2001-06-01

333

Exploring the hydrochemical evolution of brines leading to sylvite precipitation in ancient evaporite basins  

NASA Astrophysics Data System (ADS)

Sylvite is a very common mineral in ancient evaporite deposits. Due to the absence of current deposits, the natural geochemical mechanism/s for synsedimentary sylvite precipitation and accumulation are not well understood. Numerous sylvite deposits or portions of them have been described as a result of diagenesis (i.e. Sergipe subbasin, Brasil). However, a number of deposits have been described as synsdimentary or being formed during primary evaporite deposition. It is the last group of deposits that can be studied to better understand the hydrochemical processes taking place in the brine at the onset of sylvite precipitation. The Salt IV sylvite beds from the Mulhouse potash basin, Alsace (France) have been described as synsedimentary in origin (LOWENSTEIN and SPENCER, 1990; CENDóN et al., 2008). While sylvite in itself does not contain fluid inclusions viable for micro analysis, primary textures in neighboring halite are used as a proxy to understand brine evolution. Two halite-sylvite cycles from the B1 and B2 layers of the potash lower seam were selected. These exhibited clear primary halite crystal textures with sylvite adapting to an irregular halite sedimentary surface and finishing with a flat surface. The nine halite samples, selected at centimeter scale, provided close to 100 single fluid inclusion analyses, representing both the transition towards sylvite precipitation and the post sylvite precipitation. The fluid inclusion analyses revealed strong fluctuations in K concentration, well over the analytical error (

Cendón, Dioni; Pueyo, Juan Jose; Ayora, Carlos; García Veigas, Javier; Blanc-Valleron, Marie-Madeleine

2010-05-01

334

Hepatozoon canis infection in Slovakia: imported or autochthonous?  

PubMed

Tissue samples from nine red foxes (four samples of striated muscle tissue and five samples of heart tissue) that originated from the Michalovce district (Slovakia), an area with endemic occurrence of canine babesiosis were examined by PCR method using primers amplifying a fragment of the 18S rRNA spanning the V4 region of Babesia and Theileria. An unexpected determination of 450 bp DNA fragment of Hepatozoon canis was found in four samples. Partial sequences of the 18S rRNA gene from the H. canis showed 100% similarity with the sequence from Brasil isolate of H. canis from a pampas fox (Pseudalopex gymnocercus) (AY471615) as well as from a fox in Spain (AY150067) and from a dog in Brazil (AY864677). In the present study, we report the first PCR detection of Hepatozoon canis in a naturally infected red fox from Slovakia, a Rhipicephalus sanguineus-free region. We assume that the infection was spread by infected R. sanguineus that might have been brought to Slovakia by travelers, by golden jackals, or by foxes migrating because of expansion of golden jackals and environmental and climate changes. PMID:17627439

Majláthová, Viktória; Hurníková, Zuzana; Majláth, Igor; Petko, Branislav

2007-01-01

335

Constructing public oral health policies in Brazil: issues for reflection.  

PubMed

This paper addresses the construction of public oral health policies in Brazil by reviewing the available literature. It includes a discussion of the social responses given by the Brazilian State to oral health policies and the relationship of these responses with the ideological oral health movements that have developed globally, and that have specifically influenced oral health policies in Brazil. The influence of these movements has affected a series of hegemonic practices originating from both Market Dentistry and Preventive and Social Dentistry in Brazil. Among the state activities that have been set into motion, the following stand out: the drafting of a law to regulate the fluoridation of the public water supply, and the fluoridation of commercial toothpaste in Brazil; epidemiological surveys to analyze the status of the Brazilian population's oral health; the inclusion of oral health in the Family Health Strategy (Estratégia de Saúde da Família - ESF); the drawing up of the National Oral Health Policy, Smiling Brazil (Brasil Sorridente). From the literature consulted, the progressive expansion of state intervention in oral health policies is observed. However, there remains a preponderance of hegemonic "dental" practices reproduced in the Unified Public Health Service (Sistema Único de Saúde - SUS) and the Family Health Strategy. PMID:23318750

Soares, Catharina Leite Matos

2012-01-01

336

Protótipo do primeiro interferômetro brasileiro - BDA  

NASA Astrophysics Data System (ADS)

A interferometria é uma poderosa ferramenta usada para investigar estruturas espaciais de fontes astrofísicas fornecendo uma riqueza de detalhes inatingível pelas técnicas convencionais de imageamento. Em particular, a interferometria com ondas de rádio abre o horizonte de conhecimento do Universo nesta ampla banda do espectro eletromagnético, que vai de cerca de 20 kHz até centenas de GHz já próximo ao infravermelho, e que está acessível a partir de instrumentos instalados em solo. Neste trabalho, apresentamos o interferômetro designado por Arranjo Decimétrico Brasileiro (BDA). Trata-se do primeiro interferômetro a ser desenvolvido no Brasil e América Latina que já está em operação na fase de protótipo. Apresentamos o desenvolvimento realizado até o momento, o sítio de instalação do instrumento, o protótipo e os principais resultados dos testes de sua operação, as perspectivas futuras e a ciência a ser desenvolvida com o instrumento nas fases II e III. Neste trabalho é dada ênfase ao desenvolvimento, testes de operação e principais resultados do protótipo. É discutida brevemente a ciência que pode ser feita com o instrumento. Tanto os detalhes técnicos quanto os principais parâmetros estimados para o instrumento nas próximas fases de desenvolvimento e o desempenho do protótipo serão publicados em breve.

Cecatto, J. R.; Fernandes, F. C. R.; Neri, J. A. C. F.; Bethi, N.; Felipini, N. S.; Madsen, F. R. H.; Andrade, M. C.; Soares, A. C.; Alonso, E. M. B., Sawant, H. S.

2004-04-01

337

Brazil & the Latin American Economy  

NSDL National Science Digital Library

This week's In the News follows repercussions of world financial crises in the key Latin American economy of Brazil. The nine resources discussed provide background information, press coverage, and economic data on Brazil and related economies. With a population of 164 million and GDP of $480 billion, Brazil represents Latin America's largest economic force. Heavy US financial investments, however, tie Brazil directly to Dow Jones Industrial Average falls (reviewed in the September 10, 1998 Scout for Business & Economics) and their Asian and Russian causes (reviewed in the July 16, 1998 _Scout Report for Business & Economics_--http://scout.cs.wisc.edu/report/bus-econ/1998/be-980716txt.html#22). International concern for Latin America grew when Brazil lost $1.8 billion in foreign capital following drops in the Dow, September 10, 1998--a decisive factor in stock tumbles in Mexico and Venezuela as well. Such damaging results led to a bold rise in interest rates from the Banco Central do Brasil and negotiations with the IMF. A US and Brazilian market rally since September 11, however, leaves many officials hopeful for a stable Latin American future.

Waters, Megan.

1998-01-01

338

Radiation and available water controls on modeled evapotranspiration across eight Amazonian flux tower sites: Results from the LBA-MIP  

NASA Astrophysics Data System (ADS)

Amazon forests play an important and complex role in the global cycles of water and carbon, and important advances have been made in understanding Amazon processes in recent years. However, reconciling modeled mechanisms with observations across scales remains a challenge. To better address this challenge, we initiated a Model Intercomparison Project for the ‘Large-Scale Biosphere Atmosphere Experiment in Amazonia' (LBA-MIP) to integrate modeling and observational studies for improved understanding of Amazon basin water and carbon cycling. Here, we report on the initial results of this project, which used the network of meteorological data from Amazon tower sites (the BrasilFlux network) in forest and converted lands to drive a suite of land surface ecosystem models that simulate energy, water and CO2 fluxes. We focus here on controls on evapotranspiration (ET), and in particular on how well models capture the observed diurnal and seasonal cycles of ET across sites. In assessing mechanisms responsible for differences in model performance, we found that soil moisture storage capacity was an important factor in ability of models to match observed seasonal cycles. Soil moisture storage capacity is not routinely measured at all flux tower sites, but such measurements could improve our ability to empirically discriminate among different model mechanisms used to match observed seasonal patterns.

Christoffersen, B.

2009-04-01

339

Identification of phases in the interaction layer between U-Mo-Zr/Al and U-Mo-Zr/Al-Si  

SciTech Connect

Out-of-pile diffusion experiments were performed between U-7wt.% Mo-1wt.% Zr and Al or Al A356 (7,1wt.% Si) at 550 deg. C. In this work morphological characterization and phase identification on both interaction layer are presented. They were carried out by the use of different techniques: optical and scanning electron microscopy, X-Ray diffraction and WDS microanalysis. In the interaction layer U-7wt.% Mo-1wt.% Zr/Al, the phases UAl{sub 3}, UAl{sub 4}, Al{sub 20}Mo{sub 2}U and Al{sub 43}Mo{sub 4}U{sub 6} were identified. In the interaction layer U-7wt.% Mo-1wt.% Zr/Al A356, the phases U(Al, Si) with 25at.% Si and Si{sub 5}U{sub 3} were identified. This last phase, with a higher Si concentration, was identified with XRD Synchrotron radiation performed at the National Synchrotron Light Laboratory (LNLS), Campinas, Brasil. (author)

Varela, C.L. Komar; Arico, S.F.; Mirandou, M.; Balart, S.N. [Departamento Materiales, GIDAT, GAEN, CNEA, Avda. Gral Paz 1499, B1650KNA, San Martin (Argentina); Gribaudo, L.M. [Departamento Materiales, GIDAT, GAEN, CNEA, Avda. Gral Paz 1499, B1650KNA, San Martin (Argentina); CONICET, Avda. Rivadavia 1917, C1033AAJ, Buenos Aires (Argentina)

2008-07-15

340

A comparison of light backscattering and particle size distribution measurements in tropical cirrus clouds  

NASA Astrophysics Data System (ADS)

An FSSP-100 Optical Particle Counter designed to count and size particles in the micron range and a backscattersonde that measures in-situ particle optical properties such as backscatter and depolarization ratio, are part of the payload of the high altitude research aircraft M55 Geophysica. This aircraft was deployed in tropical field campaigns in Bauru, Brasil (TROCCINOX, 2004) Darwin, Australia (SCOUT-Darwin, 2005) and Ouagadougou, Burkina Faso (SCOUT-AMMA, 2006). In those occasions, measurements of particle size distributions and optical properties within cirrus cloud were performed. Scope of the present work is to assess and discuss the consistency between the particle volume backscatter coefficient observed by the backscattersonde and the same parameter retrieved by optical scattering theory applied to particle size distributions as measured by the FSSP-100. In addition, empirical relationships linking the optical properties measured in-situ by the backscattersonde, which generally can be obtained by remote sensing techniques (LIDAR), and microphysical bulk properties like total particle number, surface and volume density will be presented and discussed.

Cairo, F.; di Donfrancesco, G.; Snels, M.; Fierli, F.; Viterbini, M.; Borrmann, S.; Frey, W.

2011-03-01

341

A comparison of light backscattering and particle size distribution measurements in tropical cirrus clouds  

NASA Astrophysics Data System (ADS)

An FSSP-100 Optical Particle Counter designed to count and size particles in the micron range and a backscattersonde that measures in-situ particle optical properties such as backscatter and depolarization ratio, are part of the payload of the high altitude research aircraft M55 Geophysica. This aircraft was deployed in tropical field campaigns in Bauru, Brasil (TROCCINOX, 2004) Darwin, Australia (SCOUT-Darwin, 2005) and Ouagadougou, Burkina Faso (SCOUT-AMMA, 2006). In those occasions, measurements of particle size distributions and optical properties within cirrus cloud were performed. Scope of the present work is to assess and discuss the consistency between the particle volume backscatter coefficient observed by the backscattersonde and the same parameter retrieved by optical scattering theory applied to particle size distributions as measured by the FSSP-100. In addition, empirical relationships linking the optical properties measured in-situ by the backscattersonde, which generally can be obtained by remote sensing techniques (LIDAR), and microphysical bulk properties like total particle number, surface and volume density will be presented and discussed.

Cairo, F.; di Donfrancesco, G.; Snels, M.; Fierli, F.; Viterbini, M.; Borrmann, S.; Frey, W.

2010-09-01

342

Evidence for heterogeneous chlorine activation in the tropical UTLS  

NASA Astrophysics Data System (ADS)

Airborne in-situ observations of ClO in the tropics were made during the TROCCINOX (Aracatuba, Brasil, February 2005) and SCOUT-O3 (Darwin, Australia, November/December 2005) field campaigns. While during most flights significant amounts of ClO (?10-20 parts per trillion, ppt) were present only in aged stratospheric air, instances of enhanced ClO mixing ratios of up to 40 ppt - significantly exceeding those expected from gas phase chemistry - were observed in air masses of a more tropospheric character. Most of these observations concur with low temperatures or with the presence of cirrus clouds (often both), suggesting that cirrus ice particles and/or liquid aerosol at low temperatures may promote significant heterogeneous chlorine activation in the tropical upper troposphere lower stratosphere (UTLS). In two case studies, particularly high levels of ClO observed were reproduced by chemistry simulations only under the assumption that significant denoxification had occurred in the observed air. At least for one of these flights, a significant denoxification is in contrast to the observed NO levels suggesting that the coupling of chlorine and nitrogen compounds in the tropical UTLS may not be completely understood.

von Hobe, M.; Grooß, J.-U.; Günther, G.; Konopka, P.; Gensch, I.; Krämer, M.; Spelten, N.; Afchine, A.; Schiller, C.; Ulanovsky, A.; Sitnikov, N.; Shur, G.; Yushkov, V.; Ravegnani, F.; Cairo, F.; Roiger, A.; Voigt, C.; Schlager, H.; Weigel, R.; Frey, W.; Borrmann, S.; Müller, R.; Stroh, F.

2010-07-01

343

Child health and nutrition in the Western Brazilian Amazon: population-based surveys in two counties in Acre State.  

PubMed

The article presents prevalence rates for malnutrition, intestinal parasitic infections, anemia, and iron deficiency in under-five children in a population-based cross-sectional survey performed in the urban area of two counties in the Western Brazilian Amazon, Assis Brasil (n = 200) and Acrelandia (n = 477). Available data included: (a) weight and height measurements, standardized as z-scores using the 1977 NCHS reference population, (b) diagnosis of current intestinal parasitic infection, (c) blood hemoglobin levels, and (d) plasma ferritin and soluble transferrin receptor levels. Overall prevalence rates of low weight-for-height, low weight-for-age, and low height-for-age were 3.7%, 8.7%, and 7.5%, respectively, with similar figures in the two towns. Intestinal parasites were detected in 32.5% children; helminths were uncommon. Anemia and iron deficiency were diagnosed in 30.6% and 43.5% of the children, respectively. Evidence of anemia was found in only 47.6% of the children with depleted iron reserves, indicating that hemoglobin measurement alone would severely underestimate the magnitude of iron deficiency in this population. In both towns, anemia and malnutrition were significantly more prevalent among children in the lowest socioeconomic stratum. PMID:17546320

Muniz, Pascoal Torres; Castro, Teresa Gontijo de; Araújo, Thiago Santos de; Nunes, Nara Barros; da Silva-Nunes, Mônica; Hoffmann, Erika Hellena Esther; Ferreira, Marcelo Urbano; Cardoso, Marly Augusto

2007-06-01

344

Petrophysical analysis of limestone rocks by nuclear logging and 3D high-resolution X-ray computed microtomography  

NASA Astrophysics Data System (ADS)

This study presents the pore-space system analysis of the 2-ITAB-1-RJ well cores, which were drilled in the São José do Itaboraí Basin, in the state of Rio de Janeiro, Brasil. The analysis presented herein has been developed based on two techniques: nuclear logging and 3D high-resolution X-ray computed microtomography. Nuclear logging has been proven to be the technique that provides better quality and more quantitative information about the porosity using radioactive sources. The Density Gamma Probe and the Neutron Sonde used in this work provide qualitative information about bulk density variations and compensated porosity of the geological formation. The samples obtained from the well cores were analyzed by microtomography. The use of this technique in sedimentary rocks allows quantitative evaluation of pore system and generates high-resolution 3D images (˜microns order). The images and data obtained by microtomography were integrated with the response obtained by nuclear logging. The results obtained by these two techniques allow the understanding of the pore-size distribution and connectivity, as well as the porosity values. Both techniques are important and they complement each other.

Oliveira, M. F. S.; Lima, I.; Ferrucio, P. L.; Abreu, C. J.; Borghi, L.; Lopes, R. T.

2011-10-01

345

Heritage and Observatories in Brazil at the Turn of the Twentieth Century: an Overview  

NASA Astrophysics Data System (ADS)

The first systematic asronomical observations in the southern hemisphere were in Pernambuco, northeastern Brazil, in the short period of Dutch rule in the region (1637-1644). Later, in the late nineteenth and early twentieth centuries, there were three observatories on Brazilian soil: Imperial Observatório do Rio de Janeiro, Observatório da Escola Politecnica, both in Rio de Janeiro and Observatório Central, in the southern city of Porto Alegre. The first was created by Imperial decree by D. Pedro I, on 15 October 1827, while the second, linked to Universidade do Brasil, was established on 5 July 1881. The third was planned in 1889, but only inaugurated on 24 January 1908 as part of the Escola de Engenharia. All three institutions exist to this day, and their scientific instruments of historical value are included in cultural heritage preservation projects. The largest collection of this kind of objects is at Museu de Astronomia e Ciéncias Afins (MAST), most of whose 2000 artefacts come from the Imperial Observatory (today the National Observatory). Many of them were produced in Germany by manufacturers such as Gustav Heyde, Carl Zeiss, Askania-Werke, Carl Bamberg and Max Kohl. The buildings of the Observatório Central (1921) and Observatório Nacional (1921) are listed by federal and state heritage protection agencies, particularly because they were purpose built for astronomical research and have architectural features typical of the late nineteenth and early twentieth centuries that have not been altered over the years.

Granato, Marcus

346

The Seismicity of Two Hyperextended Margins  

NASA Astrophysics Data System (ADS)

A seismic belt marks the outermost edge of Scandinavia's proximal margin, inboard of and roughly parallel to the Taper Break. A similar near- to onshore seismic belt runs along its inner edge, roughly parallel to and outboard of the asymmetric, seaward-facing escarpment. The belts converge at both the northern and southern ends of Scandinavia, where crustal taper is sharp and the proximal margin is narrow. Very few seismic events have been recorded on the intervening, gently-tapering Trøndelag Platform. Norway's distribution of seismicity is systematically ordered with respect to 1) the structural templates of high-beta extension that shaped the thinning gradient during Late Jurassic or Early Cretaceous time, and 2) the topographically resurgent Cretaceous-Cenozoic "accommodation phase" family of escarpments that approximate the innermost limit of crustal thinning [See Redfield and Osmundsen (2012) for diagrams, definitions, discussion, and supporting citations.] Landwards from the belt of earthquake epicenters that mark the Taper Break the crust consistently thickens, and large fault arrays tend to sole out at mid crustal levels. Towards the sea the crystalline continental crust is hyperextended, pervasively faulted, and generally very thin. Also, faulting and serpentinization may have affected the uppermost parts of the distal margin's lithospheric mantle. Such contrasting structural conditions may generate a contrasting stiffness: for a given stress, more strain can be accommodated in the distal margin than in the less faulted proximal margin. By way of comparison, inboard of the Taper Break on the gently-tapered Trøndelag Platform, faulting was not penetrative. There, similar structural conditions prevail and proximal margin seismicity is negligible. Because stress concentration can occur where material properties undergo significant contrast, the necking zone may constitute a natural localization point for post-thinning phase earthquakes. In Scandinavia, loads generated by escarpment erosion, offshore sedimentary deposition, and post-glacial rebound have been periodically superimposed throughout the Neogene. Their vertical stress patterns are mutually-reinforcing during deglaciation. However, compared to the post-glacial dome the pattern of maximum uplift/unloading generated by escarpment erosion will be longer, more linear, and located atop the emergent proximal margin. The pattern of offshore maximum deposition/loading will be similar. This may help explain the asymmetric expenditure of Fennoscandia's annual seismic energy budget. It may also help explain the obvious Conundrum: if stress generated by erosion and deposition is sufficiently great, fault reactivation and consequent seismicity can occur at any hyperextended passive margin sector regardless of its glacial history. Onshore Scandinavia, episodic footwall uplift and escarpment rejuvenation may have been driven by just such a mechanism throughout much of the later Cretaceous and Cenozoic. SE Brasil offers a glimpse of how Norway's hyperextended margin might manifest itself seismically in the absence of post-glacial rebound. Compilations suggest two seismic belts may exist. One, offshore, follows the thinned crust of the ultra-deep, hyperextended Campos and Santos basins. Onshore, earthquakes occur more commonly in the elevated highlands of the escarpments, and track especially the long, linear ranges such as the Serra de Mantiquiera and Serra do Espinhaço. Seismicity is more rare in the coastal lowlands, and largely absent in the Brasilian hinterland. Although never glaciated since the time of hyperextension and characterized by significantly fewer earthquakes in toto, SE Brasil's pattern of seismicity closely mimics Scandinavia. Commencing after perhaps just a few tens of millions of years of 'sag' basin infill, accommodation phase fault reactivation and footwall uplift at passive margins is the inexorable product of hyperextension. CITATIONS Redfield, T.F. and P.T. Osmundsen, 2012, GSA Bulletin, doi: 10.1130/B30691.1

Redfield, Tim; Terje Osmundsen, Per

2013-04-01

347

The Distance to the Massive Galactic Cluster Westerlund 2 from a Spectroscopic and HST Photometric Study  

NASA Astrophysics Data System (ADS)

We present a spectroscopic and photometric determination of the distance to the young Galactic open cluster Westerlund 2 using WFPC2 imaging from the Hubble Space Telescope (HST) and ground-based optical spectroscopy. HST imaging in the F336W, F439W, F555W, and F814W filters resolved many sources previously undetected in ground-based observations and yielded photometry for 1136 stars. We identified 15 new O-type stars, along with two probable binary systems, including MSP 188 (O3 + O5.5). We fit reddened spectral energy distributions based on the Padova isochrones to the photometric data to determine individual reddening parameters RV and AV for O-type stars in Wd2. We find average values langRV rang = 3.77 ± 0.09 and langAV rang = 6.51 ± 0.38 mag, which result in a smaller distance than most other spectroscopic and photometric studies. After a statistical distance correction accounting for close unresolved binaries (factor of 1.08), our spectroscopic and photometric data on 29 O-type stars yield that Westerlund 2 has a distance langdrang = 4.16 ± 0.07 (random) +0.26 (systematic) kpc. The cluster's age remains poorly constrained, with an upper limit of 3 Myr. Finally, we report evidence of a faint mid-IR polycyclic aromatic hydrocarbon ring surrounding the well-known binary candidate MSP 18, which appears to lie at the center of a secondary stellar grouping within Westerlund 2. Based on observations obtained at the Southern Astrophysical Research (SOAR) telescope, which is a joint project of the Ministério da Ciência, Tecnologia, e Inovação (MCTI) da República Federativa do Brasil, the U.S. National Optical Astronomy Observatory (NOAO), the University of North Carolina at Chapel Hill (UNC), and Michigan State University (MSU).

Vargas Álvarez, Carlos A.; Kobulnicky, Henry A.; Bradley, David R.; Kannappan, Sheila J.; Norris, Mark A.; Cool, Richard J.; Miller, Brendan P.

2013-05-01

348

Solid speciation and availability of nickel and chromium in Ni mining spoils  

NASA Astrophysics Data System (ADS)

Nickel mining of ultramafic laterites generates different types of wastes, topsoils and ores that are too poor in Ni to be currently processed. These are mixed and stored on heaps which could be a potential source of Ni and Cr pollution. Chemical reactivity of the main metal bearing phases present in the mining spoils of Goiás (Brasil) was investigated. Principally a silicated 'saprolite' material and a Fe-oxide rich limonitic material were isolated from the wastes. Their total Ni and Cr content are high, respectively for Ni and Cr : 7,170 and 54,970 mg kg-1 in limonite and 12,200 and 12,650 mg kg-1 in saprolite. The main metal-bearing minerals, identified and localized using XRD, TEM-EDX, Raman spectroscopy and Mossbaüer spectrometry are well-crystallized minerals: goethite (75%), hematite (13%) and chromite in limonite and ferruginous smectite, talc and chromite in saprolite. Single and sequential extractions showed that the amounts of 1M KCl exchangeable Ni and Cr reached respectively 7.1% and 0.03% of total contents in saprolite. Moreover, Cr(VI) extraction by KH2PO4 showed that more than 2% (980 mg kg-1) of total Cr was under this labile toxic form in limonite. This study allowed us to determine the main reactions controlling the Ni and Cr mobility in the spoils i.e. Ni2+ cationic exchange in saprolitic spoil and CrO32- surface complexation in limonitic spoil. This study allowed us to demonstrate the need of chemical rehabilitation of mining wastes in order to avoid the dispersion of the high contents of Ni and Cr available. It constitutes the system definition needed to predict the Cr and Ni mobility in ultramafic mining spoils.

Raous, Sophie; Garnier, Jérémie; Sterckeman, Thibaul; Echevarria, Guillaume; Becquer, Thierry; Thomas, Fabien

2010-05-01

349

[Presence of antibodies against Venezuelan equine encephalitis virus subtype VI in patients with acute febrile illness].  

PubMed

In Argentina, there is no record of human cases produced by Dengue virus (Flavivirus), but Paraguay and Brasil (neighbouring countries) have notified human outbreaks of Dengue Haemorrhagic Fever. In this report, we inform the serological results of a limited human outbreak of a Dengue-like acute illness that occurred in General Belgrano Island, Formosa, Argentina in April 1989. This island is 35 km far from Clorinda city of Paraguay river, with a human population of 150 inhabitants. The weather of this area is humid with abundant rainfall, favouring mosquitoes proliferation. Two samples of serum from 28 human notified cases were studied using hemagglutination inhibition test (HI), complement fixation (CF), and plaque reduction neutralization (NT) test in Vero cell cultures. All tested sera were negative to Dengue, St. Louis encephalitis, Yellow Fever, Bussuquara, Rocio, Eastern and Western Equine Encephalitis arboviruses as well as Influenza and Rubella viruses. By contrast, infection with Venezuelan equine encephalitis virus (VEE), subtype VI-AG80-663 strain was demonstrated (34.5% positive by HI, 39.1% by CF and 51.6% by NT). Seroconversion was detected by NT in six cases and only five were positive by CF. The 26.8% of the sera reacted also with VEE subtype I AB by NT. Considering that no cross reaction were detected in NT with these two subtypes, our results suggest that both viruses are concomitantly circulating in the studied area. Furthermore, the seroconversions detected with AG80-663 strain firmly indicate that during the outbreak this virus subtype was circulating in the island, although we could not assure that it was the causal agent of the acute disease. PMID:8153352

Contigiani, M S; de Basualdo, M; Cámara, A; Ramírez, A; Díaz, G; González, D; Medeot, S; Osuna, D

350

Uncomplicated malaria among pregnant women in the Brazilian Amazon: local barriers to prompt and effective case management.  

PubMed

Malaria in pregnancy is associated with increased risks of maternal anemia, spontaneous abortion, low birth weight, premature delivery and other adverse effects on health. In Brazil, disease transmission is highly concentrated in the multi-state region that constitutes the Brazilian Amazon (more than 99% of all cases). This study, conducted between the first bimesters of 2007 and 2008, aims to identify the local barriers to prompt and effective case management of malaria in pregnancy and was carried out in health facilities located in three endemic municipalities of the Brazilian Amazon (Manaus, Presidente Figueiredo and Porto Velho). The study design combined both qualitative and quantitative descriptive methods. The qualitative design involved semi-structured interviews with health personnel who routinely deal with malaria care. The quantitative design involved a review of medical records of pregnant women in the visited health facilities. Additionally, data were abstracted from SIVEP-Malaria Epidemiological Surveillance Information System (Brasil, 2007) and Primary Care Information System (SIAB) databases. Flaws were detected in diagnosis (only 6.8% of women tested for malaria) and treatment (for Plasmodium falciparum infections, only 44.8% of patients received recommended first-line therapy; 10.2% of prescription presented treatments were not found in national guideline and 7.3% of the prescriptions for Plasmodium vivax and 17.9% of the prescriptions for P. falciparum were not sanctioned by the official guidelines). Training (only 37.3% had had some training), knowledge and counseling were also sub-optimal. These results indicated the need to improve the health-worker performance through training. Close supervision and feedback on the health-worker performance are also needed. These findings also highlighted the need to put into practice a series of government recommendations that encourage close collaboration between the National Malaria Control Program and Primary Health Care actions in order to achieve safer pregnancies. PMID:23178220

Luz, Tatiana Chama Borges; Suárez-Mutis, Martha Cecília; Miranda, Elaine Silva; Moritz, Angela Fernandes Esher; Freitas, Letícia Figueira; Brasil, Juliana de Castro; Osorio-de-Castro, Claudia Garcia Serpa

2012-11-21

351

Transiting exoplanets from the CoRoT space mission. XXII. CoRoT-16b: a hot Jupiter with a hint of eccentricity around a faint solar-like star  

NASA Astrophysics Data System (ADS)

Aims: We report the discovery of CoRoT-16b, a low density hot jupiter that orbits a faint G5V star (mV = 15.63) in 5.3523 ± 0.0002 days with slight eccentricity. A fit of the data with no a priori assumptions on the orbit leads to an eccentricity of 0.33 ± 0.1. We discuss this value and also derive the mass and radius of the planet. Methods: We analyse the photometric transit curve of CoRoT-16 given by the CoRoT satellite, and radial velocity data from the HARPS and HIRES spectrometers. A combined analysis using a Markov chain Monte Carlo algorithm is used to get the system parameters. Results: CoRoT-16b is a 0.535 -0.083/+0.085 MJ, 1.17 -0.14/+0.16 RJ hot Jupiter with a density of 0.44 -0.14/+0.21 g cm-3. Despite its short orbital distance (0.0618 ± 0.0015 AU) and the age of the parent star (6.73 ± 2.8 Gyr), the planet orbit exhibits significantly non-zero eccentricity. This is very uncommon for this type of objects as tidal effects tend to circularise the orbit. This value is discussed taking into account the characteristics of the star and the observation accuracy. The CoRoT space mission, launched on December 27, 2006, has been developed and is operated by the CNES with the contribution of Austria, Belgium, Brasil, ESA, Germany, and Spain.Observations made with the HARPS spectrograph at ESO La Silla Observatory (HARPS programs 083.C-0186 and 184.C-0639) and the HIRES spectrograph at the Keck Observatory (NASA-Keck programs N035Hr, N143Hr and N095Hr).

Ollivier, M.; Gillon, M.; Santerne, A.; Wuchterl, G.; Havel, M.; Bruntt, H.; Bordé, P.; Pasternacki, T.; Endl, M.; Gandolfi, D.; Aigrain, S.; Almenara, J. M.; Alonso, R.; Auvergne, M.; Baglin, A.; Barge, P.; Bonomo, A. S.; Bouchy, F.; Cabrera, J.; Carone, L.; Carpano, S.; Cavarroc, C.; Cochran, W. D.; Csizmadia, Sz.; Deeg, H. J.; Deleuil, M.; Diaz, R. F.; Dvorak, R.; Erikson, A.; Ferraz-Mello, S.; Fridlund, M.; Gazzano, J.-C.; Grziwa, S.; Guenther, E.; Guillot, T.; Guterman, P.; Hatzes, A.; Hébrard, G.; Lammer, H.; Léger, A.; Lovis, C.; MacQueen, P. J.; Mayor, M.; Mazeh, T.; Moutou, C.; Ofir, A.; Pätzold, M.; Queloz, D.; Rauer, H.; Rouan, D.; Samuel, B.; Schneider, J.; Tadeu dos Santos, M.; Tal-Or, L.; Tingley, B.; Weingrill, J.

2012-05-01

352

The nasal provocation test combined with spirometry establishes paradoxical vocal fold motion in allergic subjects.  

PubMed

Vocal cord dysfunction (also called paradoxical vocal cord motion) or paradoxical vocal fold motion (PVFM) is an event elicited by specific and nonspecific triggers in which its diagnosis is limited by the restricted number of available functional tests. This study was designed to appreciate the contribution of the spirometric changes elicited by the allergen-specific nasal provocation test (NPT) performed with Dermatophagoides pteronyssinus for the diagnosis of PVFM in subjects with known sensitization to this allergen. In total, 63 subjects with allergic rhinitis who had previously been shown to be sensitized to D. pteronyssinus and who had experienced one or more episodes of inspiratory shortness of breath underwent two spirometric tests, one before (pre-NPT) and another 15 minutes after the allergen-specific NPT (post-NPT). The forced inspiratory vital capacity (FIVC), forced inspiratory volume in 2 seconds (FIV2), and the ratio between the FIV in 1 second and FIVC (FIV1/FIVC) were measured by spirometry. The morphology of the post-NPT inspiratory loop was compared with the pre-NPT inspiratory loop. We found that 18 subjects (28.5%) showed alterations suggestive of PVFM on post-NPT spirometry (e.g., truncation and/or flattening of the inspiratory loop). The mean differences between the pre-NPT and post-NPT values for the whole group were significant using a two-tailed paired t-test for the FIVC (4.1; 95% confidence interval [CI95%], 1.4-6.8), FIV1/FIVC ratio (2.7; CI95%, 0.05-5.3), and FIV2 (7.2; CI95%, 3.4-11). Allergen-specific NPT combined with spirometry is useful to show allergen-specific laryngeal hyperresponsiveness in allergic subjects with PVFM. Brazilian clinical trial registry platform (Plataforma Brasil, CAAE 07971212.0.0000.5480). PMID:23998243

Olivier, Celso Eduardo; Argentão, Daiana Guedes Pinto; Lima, Regiane Patussi Dos Santos; da Silva, Mariana Dias; Dos Santos, Raquel Acácia Pereira Gonçalves

2013-09-01

353

Balloon-borne heterodyne stratospheric limb sounder TELIS ready for flight  

NASA Astrophysics Data System (ADS)

TELIS (TErahertz and submm LImb Sounder) is a three-channel balloon-borne heterodyne spectrometer for atmospheric research. The observational techniques of TELIS can be compared to the presently flying MLS instrument on board NASA's EOS-Aura satellite, but TELIS is built with a new generation of cryogenic heterodyne detectors and novel compact systems suitable for integration into the confined space of a balloon borne cryostat. TELIS will fly on the MIPAS-B2 gondola. The two instruments together will yield the most complete set of stratospheric constituents, measured so far. TELIS is a cooperation between the European institutes DLR (PI-institute), RAL and SRON. First flight foreseen in the spring of 2008 from Teresina, Brasil. The three TELIS receivers provide simultaneous vertical profile measurement of a range of molecules. The 500 GHz channel is developed by RAL and will produce vertical profiles of BrO, ClO, O3 and N2O. The 1.8 THz channel is developed by DLR and will mainly target the OH radical, and will also measure HO2, HCl, NO, NO2, O3, H2O, O2 and HOCl. Finally the 480 - 650 GHz channel is developed by SRON and IREE and will measure profiles of ClO, BrO, O3, HCl, HOCl, H2O and its 3 isotopomers, H2O2, NO, N2O, HNO3, CH3Cl and HCN. In this paper, the science and technology of TELIS will be discussed with emphasis on the channel developed by SRON. It contains a Superconducting Integrated Receiver (SIR), which combines on a 4x4 mm2 chip the low-noise SIS mixer and its quasioptical antenna, a superconducting phase-locked Flux Flow Oscillator (FFO) acting as Local Oscillator (LO) and a SIS harmonic mixer (HM) for FFO phase locking. The latest results from the pre-flight test and integration campaigns will be presented.

Hoogeveen, R. W. M.; Yagoubov, P. A.; de Lange, G.; de Lange, A.; Koshelets, V. P.; Ellison, B. N.; Birk, M.

2007-10-01

354

221 Eos: A remnant of a partially differentiated parent body?  

NASA Astrophysics Data System (ADS)

The asteroid 221 Eos (K class), has been traditionally associated to CO/CV meteorites (Bell 1988). This association is based solely on spectral similarities with meteorites, and previously the best spectral analog to Eos was found to be the CO3 Warrenton (Burbine et al. 2001). The 52-color spectrum (http://pdssbn.astro.umd.edu/) and the SMASSIR spectrum (Burbine and Binzel 2001) of 221 Eos in the NIR region, combined with the SMASSII spectrum (Bus and Binzel 2001) in the visible, has now been compared to the whole RELAB meteorites database (http://www.planetary.brown.edu/relab/rel_pub/) updated on July 31, 2003. This comparison revealed a better spectral analog to Eos: the anomalous stone Divnoe, a primitive achondrite meteorite. Problems and implications of such match for the composition of Eos and its dynamical family will be discussed. This work has been supported by the Conselho Nacional de Desenvolvimento Científico e Tecnológico - CNPq/Brasil. References: Bell, J.F. 1988. A Probable Asteroidal Parent Body for the CV or CO Chondrites. Meteoritics 23, 256. Burbine, T.H. and Binzel, R.P. Bus, S.J. and Clark, B.E. 2001. K asteroids and CO3/CV3 chondrites. Icarus 36, 245. Burbine, T.H. and Binzel, R.P. 2002. Small Main-Belt Asteroid Spectroscopic Survey in the Near-Infrared. Icarus 159, 468. Bus, S.J. and Binzel, R.P. 2002. Phase II of the Small Main-Belt Asteroid Spectroscopic Survey: The Observations. Icarus 158, 106.

Mothé-Diniz, T.; Carvano, J. M.

2004-11-01

355

Expansion Of Sugarcane Production In São Paulo, Brazil: Implications For Fire Occurrence And Respiratory Health  

NASA Astrophysics Data System (ADS)

Recent increases in the price of oil have generated much interest in biofuel development. Despite the increasing demand, the social and environmental impacts of large scale adoption of biofuels at both regional and national scales remain understudied, especially in developing economies. Here we use municipality-level data for the state of São Paulo in Brasil to explore the effects of fires associated with sugarcane cultivation on respiratory health of elderly and children. We examined the effects of fires occurring in the same year in which respiratory cases were reported as well as chronic effects associated with long-term cultivation of sugarcane. Across the state, respiratory morbidity attributable to fires accounted for 113 elderly and 317 child cases, approximately 1.8% of total cases in each group. Although no chronic effects of fire were detected for the elderly group, an additional 650 child cases can be attributed to the long term cultivation of sugar cane increasing to 5.4% the percent of children cases that can be attributed to fire. For municipalities with greater than 50% of the land in sugarcane the percentage increased to 15% and 12 % respectively for elderly and children. An additional 209 child cases could also be attributed to past exposure to fires associated with sugarcane, suggesting that in total 38% of children respiratory cases could be attributed to current or chronic exposure to fires in these municipalities. The harmful effects of cane- associated fires on health are not only a burden for the public health system but also for household economies. This type of information should be incorporated into land use decisions and discussions of biofuel sustainability.

Uriarte, M.

2008-12-01

356

Profiles of sex steroids, fecundity and spawning of a migratory characiform fish from the Paraguay-Paraná basin: a comparative study in a three-river system.  

PubMed

This study investigated for the first time the reproductive biology of Prochilodus lineatus in a system of rivers in southeastern Brasil, relating it to the role of tributary rivers in the reproductive success of this important commercial fish in the Upper Paraná River basin, where a cascade of hydroelectric dams were deployed. Specimens were caught bimonthly in three river sites: (S1) Grande River, downstream from the Porto Colômbia dam; (S2) Pardo River; and (S3) Mogi Guaçu River. Sex steroid plasma levels, fecundity, follicular atresia, oocyte diameter and gonadosomatic index (GSI) were compared among sites. In S1, fish exhibited changes in the reproductive parameters: lower GSI, oocyte diameter and fecundity and higher follicular atresia index, when compared to S2 and S3. Frequency of maturing fish was higher in S3 and spawning was only registered in S3. In sites S2 and S3, plasma concentrations of testosterone and 17?-estradiol in females and testosterone in males showed wide variations following gonadal maturation. Fish from S1 showed few significant variations in sex steroid concentrations throughout the gonadal cycle. These results indicate that P. lineatus does not reproduce in Grande River (S1), but probably uses the Pardo River (S2) as a migratory route towards the Mogi Guaçu River (S3) where they complete gonadal maturation and spawning. Our findings contribute for understanding the reproductive biology of P. lineatus and to highlight the importance of tributaries in impounded rivers as a favourable environment for migration and spawning of fish. PMID:23616136

Perini, Violeta da Rocha; Paschoalini, Alessandro Loureiro; Cruz, Cláudia Kelly Fernandes da; Rocha, Rita de Cássia Gimenes Alcântara de; Senhorini, José Augusto; Ribeiro, Dirceu Marzulo; Formagio, Paulo Sérgio; Bazzoli, Nilo; Rizzo, Elizete

2013-04-25

357

An Amazon basin-wide intercomparison of ecosystem land surface models and flux observations: Results from the LBA-MIP  

NASA Astrophysics Data System (ADS)

Amazon forests play an important and complex role in the global cycles of water and carbon, and important advances have been made in understanding Amazon processes in recent years. However, reconciling modeled mechanisms with observations across scales remains a challenge. To better address this challenge, we initiated a Model Intercomparison Project for the ‘Large-Scale Biosphere Atmosphere Experiment in Amazonia’ (LBA-MIP) to integrate modeling and observational studies for improved understanding of Amazon basin water and carbon cycling. Here, we report on expanded analysis from this project, which used the network of meteorological data from Amazon tower sites (the BrasilFlux network) in forest and converted lands to drive a suite of land surface ecosystem models that simulate energy, water and CO2 fluxes. We focus here on controls on gross primary photosynthesis (GPP) and evapotranspiration (ET), and in particular on how well models capture the observed diurnal and seasonal cycles across sites. We intercompare stomatal (via available soil moisture), phenological, and available energy controls on GPP and ET across models and observations. We found that available energy is the dominant control on ET across the Amazon basin, and in assessing mechanisms responsible for differences in model performance with respect to ET, we found that soil moisture storage capacity was an important factor in ability of models to match observed seasonal cycles. We evaluated model performance with respect to GPP in terms of light use efficiency as well as leaf phenology, where observations were available. Finally, we discuss important ancillary measurements at flux tower sites (e.g., deep soil moisture profiles, LAI, and litterfall) necessary to improve our ability to empirically discriminate among different model mechanisms used to match observed seasonal patterns.

Christoffersen, B. J.; Araujo, A.; Baker, I. T.; Costa, M. H.; Goncalves, L.; Imbuzeiro, H.; Kruijt, B.; Manzi, A.; Poulter, B.; von Randow, C.; Restrepo-Coupe, N.; Da Rocha, H. R.; Saleska, S. R.

2009-12-01

358

Multi-scale analysis of N2O, O3 and HNO3 high resolution measurements in the middle atmosphere  

NASA Astrophysics Data System (ADS)

Small-scale turbulent processes are still poorly understood and paramaterized in numerical models. The aim of this work is to evaluate the vertical turbulent diffusivity in the stratosphere and its variability as a function of altitude, latitude and season. To evaluate the turbulent diffusivity it is relevant to calculate tracer profiles roughness. Based on measurements obtained over the last decade by the SPIRALE spectrometer balloon borne instrument (9 flights), we calculate the profile roughness of N2O, HNO3, and O3 in the stratosphere for different geophysical conditions and seasons at mid-latitudes, in tropics, and in polar region. SPIRALE is a spectrometer with six tunable laser diodes for in situ measurements of trace gas species from the upper troposphere to the middle stratosphere (~34 km height). This instrument provides concentration of several trace gas species with a very high vertical resolution of ~5 m. SPIRALE has flown in tropical region (Teresina, 5.0°S/42.5°W, Brasil), at mid-latitudes (Aire sur l'Adour, 43.5°N/0.2°W; Gap, 44.3°N/6.0°E, France) and in Arctic region (Esrange, 67.5°N/21.0°E). In addition, using the high vertical resolution of the measurements, we performed multi-scale analysis using wavelet decomposition in order to investigate the scale interactions and characterize the stratospheric dynamical state for each flight. We will show the preliminary results obtained and discuss on the link between roughness obtained and turbulent diffusion coefficient variability in the stratosphere.

Thiéblemont, Rémi; Huret, Nathalie; Dudok de Wit, Thierry; Catoire, Valery; Aubry, Jason

2013-04-01

359

Mercury in estuarine sediments of the Manguaba and Botafogo River : A background and baseline values proposition in comparison to relatively well preserved and polluted aquatic systems under tropical countries  

NASA Astrophysics Data System (ADS)

Mercury in estuarine sediments of the Manguaba and Botafogo River : A background and baseline values proposition in comparison to relatively well preserved and polluted aquatic systems under tropical countries Lima, Marta1; Menor, Eldemar2; Lima, Enjolras3; Neumann, Virginio4 1MFGTransportes, Brazil; 2Federal University of Pernambuco, Brazil 3Servico Geologico do Brasil-CPRM, Brazil 4Federal University of Pernambuco, Brazil Heavy metal (HM) concentrations in estuarine sediments of the Botafogo and Manguaba river, North-eastern Brazil were investigated on basis of samples from a bottom core drill performed 4km from the mouth of the rivers. Total sediments (TS) of the sliced profiles (62 cm, Botafogo river and 87 cm, Manguaba river ) were submitted to chemical analysis (51 elements), mineralogical analysis (XRD) and statistical study, followed by stoichiometric calculations. Geochronologic determinations of 210Pb allowed studying the evolution of the contamination level approximately 150 year-old interval in the Botafogo river. Mercury (Hg) and Arsenic (As) are emphasized because of a chlorine-soda industry that dumps its effluents about 15 km upstream of the estuary and extensive cultivation of sugarcane existent in this watershed. Hg background in pelitic total sediments (PTS) was certain established considering the Hg content (126 ppb) in sedimentary intervals previous to 1910. The production of chlorine-soda (since 1963) coincides with a drastic increase of the Hg concentrations and contemporary values around 6.000 ppb, without interruption in the pollutant process. The conclusions found that the Hg was the main indicator of anthropogenic contribution in the sediments of the Botafogo river. On the other hand, an increase in the Hg-As concentrations has been observed at the last decades due to an increase of the clay mineral fraction in TS of the Manguaga river. This scenario indicates that the accumulation of HM has been constant since the last decades, under a background, around 80 ppm available for pelitic sediments. This result is influenced by small geogenic factors (rock weathering and natural atmospheric contributions) and moderate antropic factors (urban sewage, agricultural fertilizers, before the 1930'), but is representative of relatively well preserved hydrographic basins under tropical climate. Effectively, the Manguaba's Basin is characterized by little urban and industrial occupations although it includes extensive sugar-cane plantations with great devastation of the native forests.

Lima, Marta

2013-04-01

360

The Neoproterozoic Trans-Saharan/Trans-Brasiliano shear zones: Suggested Tibetan Analogs  

NASA Astrophysics Data System (ADS)

The Trans-Saharan Borborema (TSB) belt is a product of the assembly of Gondwana, a supercontinent that formed from cratonic fragments derived from Rodinia and other vagrant lithospheric blocks. Recent reconstructions show the West African craton (WAC) and Congo- San-Francisco craton juxtaposed by the closure of the Brasiliano (Pharuside, Adamastor) ocean during early stages of the Pan-African orogenic cycle in northwest Gondwana. The Dahomeyide and Pharuside segments of the resulting orogenic belt preserve well- organized lithotectonic units on the eastern margin of the WAC. The foreland units consist of craton-verging nappe stacks formed from the deformed margin of the WAC and its cover rocks. The near-hinter land is underlain by granitoid gneisses postulated to represent ca 600 Ma juvenile crust, exposed in the Accra-Benin plain. Further east from the suture zone is the Nigerian province, which includes rocks that were extensively reworked apparently during the Pan-African. The Borborema province of northeastern Brasil is the correlative/ extension of Nigerian. It is underlain by rocks intensively reworked during the Brasiliano (Pan-African) orogeny and juxtaposed along a series of shear zones. A distinct feature of the TBS are these extensive shear zones, many of which are typified by dextral wrench shear. In West Africa the prominent examples extend from the Sahara to the coastline and include the Hoggar, which splays into the Kandi fault, which itself has numerous splays in Benin, Togo and southeastern Ghana. In Brazil, nearly all reconstructions show that the continuation of the Kandi Fault is the Sobral fault which is inferred to be the northern segment of the Trans-Brasiliano lineament (TBL). If correct, the TBL and its TBS extensions constitute a 4000 km long dextral shear zone, perhaps the longest coherent shear zone on earth. We suggest that the geometry of these shear zones and associated Pan African sutures have instructive analogs in the Tibet-Himalayan collision system. The Pan-African suture in the Dahomeyides and its correlative in the Pharusides corresponds to Main Himalayan Thrust in the Himalayan (belt). The Kandi fault and it's splays are remarkably similar to the convergence of Indus and Bangong sutures into the Karakoram in the Himalayas. The merger of the Pan-African faults into the Hoggar fault suggest a correspondence with the Altyn Tagh and Kulun faults that bound the norther Tibet Plateau, and which accommodate contemporary tectonic escape of that Plateau eastwards.

Attoh, K.; Brown, L. D.

2008-05-01

361

Major Ions Fluxes and DOC in Rainfall and Throughfall at the Tapajos National Forest - Belterra, Para, Brazil  

NASA Astrophysics Data System (ADS)

The Tapajós National Forest -(FLONA Tapajós), an area of 600,000 ha of protected forest, is located 50km south Santarem (Pará, Brasil). The FLONA receives approximately 2000 mm.y-1 of rainfall and the forest is evergreen. The tropical forest nutrient cycle depends upon inputs from the atmosphere and from rock weathering. Internally, throughfall and stemflow transfer nutrients from the vegetation to the ground. We collected rainfall and throughfall from [starting date] through [ending date]. Concentrations of the ions Cl-, NO3-, PO4-3, SO4-2, Na+, NH4+, K+, Mg+2 and Ca+2 were analyzed using a Dionex DX-120 ion chromatograph. Total carbon and dissolved organic carbon were analyzed by a Shimadzu TOC V - CSN. Ionic fluxes were calculated from volume-weighted concentrations. The fluxes in precipitation followed the sequence: NH4+ (7.1 kg.ha-1.y-1) > Ca+2 (6.31 kg.ha-1.y-1) > Na+ (6.11 kg.ha-1.y-1) > K+ (4.41 kg.ha-1.y-1) > Cl- (3.61 kg.ha-1.y-1) > SO4-2 (3.11 kg.ha-1.y-1) > NO3- (1.31 kg.ha-1.y-1) > PO4-3 (1.11 kg.ha-1.y-1) > Mg+2 (1.01 kg.ha-1.y-1). In the throughfall, the fluxes were in the sequence: NO3- (31.8 kg.ha-1.y-1) > K+ (27.6 kg.ha-1.y-1) > NH4+ (25.5 kg.ha-1.y-1) > Na+ (17.4 kg.ha-1.y-1) > SO4-2 (15.6 kg.ha-1.y-1) > Cl- (14.5 kg.ha-1.y-1) > Ca+2 (12.7 kg.ha-1.y-1) > Mg+2 (11.1 kg.ha-1.y-1) > PO4-3 (10.8 kg.ha-1.y-1). The seasonality of cation and anion inputs suggests that intensive fertilized grain agricultural activity upwind of the site is contributing a substantial nutrient input to the forest. The fluxes of the total organic carbon for April 2003, May 2003 and February 2004 reached amounts of the 23, 18 and 34 kg.ha-1.y-1, respectively.

Oliveira, R. C.; Keller, M.; Crill, P.; de Mello, W.; Dias, J.; Oliveira, K.; Souza Neto, E.; Albuquerque, S.; Dias, J.; Pereira, C.

2004-12-01

362

Modelisation of Circulation On The French Guiana Continental Shelf  

NASA Astrophysics Data System (ADS)

The continental shelf which extends more over than 1000 km to the north-west of the mouth of the Amazon river is an usual oceanographic environment : the entire area is influenced by fresh water flowing from the Amazon. The current on the shelf inter- acts with the strong, shallow Guiana Current along the outer shelf area. The prevailing trade winds across the area impose surface stresses. The tidal influence is also signif- icant with a diminishing amplitude from the Amazon to the north. This combination results in a persistent long-shore current flowing north-westward in the shallow wa- ter along the shore. In particular on French Guiana continental shelf, the combination of significant stratification, great coastal current just out of the shelf, influence of the wind and strong tidal component presents an interesting process for study. The purpose of this study is to look into the circulation that develops under these interacting forces. For that, we develop a numerical model of the circulation on the French Guiana shelf. Nowadays, in the bibliography, it seems to be the first numerical study on this area. This work is included in the Programme National dSEnvironnement Côtier (PNEC) in French Guiana. Simulations described the coastal currents, the salinity and temperature evolution on the shelf under the influence of rivers discharging in the shelf and the effect of north- eastward wind on the circulation. The current is parallel to the coast and the highest velocities are in the middle of the shelf, the maximum intensity is located at the surface and reached speed of 1m/s. The fresh water discharged by rivers extends alongshore near the coast, to about 30m-isobath, whereas the fresh water coming from the Ama- zon spreads out essentially in the middle of the shelf. The halocline is situated few meters (between 2 and 5 m) under the surface, with a lower salinity at the south-east boundary which is 20 and which is 25 at the north-west boundary, whereas, the salinity at the bottom is about 36. The North-eastward trade-wind homogenises the superficial layer and lets down the halocline. The results are in good agreement with the data of Sabord 0 and pre-Chico cruises which were carried out on the shelf, respectively in May 1996 and April 1999 which correspond to the rainny season with North-East trade-wind and no retroflection of the North Brasil Current.

Chevalier, C.; Dekeyser, I.; Ramamonjiarisoa, A.; Baklouti, M.; van Nieuwerberg, V.

363

New results about the study of the lightning activity and characteristics over the large urban area of the city of São Paulo  

NASA Astrophysics Data System (ADS)

The urban effect on lightning activity has been studied in many places around the world. The Metropolitan Region of São Paulo (MRSP) in the Southeast region of Brazil is one of the greatest and more populous urban areas of the world with a density of about 3000 inhabitants/km2. Similar to observations in other large urban areas, there is a significant enhancement in the number of negative cloud-to-ground (CG) lightning and a decrease in the percentage of positive CG flashes over the city of São Paulo. This work investigates the role of air polluted on lightning in MRSP. The CG lightning data set used was provided by Brazilian lightning detection network (BrasilDAT) for a period of 10 years (1999 - 2008). In this period, only days with CG flashes during the spring and summer seasons (from October to March) were considered and, for these days, only lightning data from 14 h to 20 h LT, were considered since this period corresponds to the time of the day with maximum lightning activity. The air polluted data set used in this work, was provided by the São Paulo environmental agencies (CETESB). The main results are: there is a tendency of increase in the ratio between lightning activity in the center area and surrounding area of the MRSP during the ten years in agreement with the same tendency observed for the number of automotive vehicles circulating on the center area of the city; there is a statistical significant increase in the CG lightning activity during the week days over MRSP related to the PM10 concentration. Apparently the increase in the lightning activity is related to an increase in the lifetime of the storms and, in consequence, the number of flashes per storm, and not to the mean flash rate of the storms. However, the increase also suggest that the effect of the pollution in the enhancement of the CG lightning activity is probably less significant compared to the effect of the urban heat island. A similar study is being done for other lightning spot not related to a large urban area in the southeast Brazil that occur in the south of Rio de Janeiro State (SRJS) and the preliminary results should be presented. Finally, simulations with the mesoscale numerical model WRF (Weather Research and Forecasting Model) are running in order to evaluate the behavior of the dynamic, thermodynamic and instability of the atmosphere in response to pollution.

Farias, W. R.; Pinto, O.; Pinto, I. R.

2009-12-01

364

Eucalyptus development in degraded soil fertilized with sewage sludge and mineral fertilizer  

NASA Astrophysics Data System (ADS)

The aim of this study was to compare the development of eucalyptus in a degraded Oxisol with mineral fertilizer and sewage sludge. The study was conducted in Selviria, Mato Grosso do Sul, Brasil. The culture of eucalyptus was planted in 2003 at 2.0 m x 1.5 m spacing, with application of 60 Mg ha-1 of sewage sludge (dry basis) and mineral fertilizer. After five years (2008) the area received biosolids and mineral fertilizer, and after five months, were evaluated for height and diameter at breast height of Eucalyptus. The experimental design was randomized blocks with four treatments: T1 - control (without addition of inputs), T2 - Mineral fertilization (30 kg ha-1 N, 90 kg ha-1 of P2O5 and 60 kg ha-1 K2O), T3 - Reapplication of 4.64 Mg ha-1 of sewage sludge, dry basis, T4 - Reapplication of 9.28 Mg ha-1 of sewage sludge, dry basis. Before reapplication the biosolids plant height was higher in the eucalyptus with treatment 9.28 Mg ha-1 of sewage sludge (8.03 m) compared to control (5.75 m) and mineral fertilizer (5.91 m) and that treatment 4.64 Mg ha-1 of sewage sludge (6.34 m) did not differ from the previous three. For the diameter at breast height was the highest value for treatment with 9.28 Mg ha-1 (7.78 cm) compared to control (5.23 cm) and 4.64 Mg ha-1 (5.03 cm), and that of mineral fertilizer (5.96 cm) did not differ from all treatments. After reapplication of sludge plant height was higher in the eucalyptus treatment with 9.28 Mg ha-1 of sewage sludge (11.21 m) compared with control (7.51 m), mineral fertilizer (7.77 m) and 4 64 Mg ha-1 (8.07 m), which did not differ. The diameter at breast height had the same behavior before the application of biosolids in the highest value observed being 9.28 Mg ha-1 (8.46 cm) compared with control (5.75 cm) and 4.64 Mg ha-1 (5.03 cm) and that of mineral fertilizer (6.34 cm) did not differ from the others. Reapplication of the dose of 9.28 Mg ha-1 of sewage sludge in degraded Oxisol provided greater height and diameter at breast height from eucalyptus trees.

Rodrigues, R. A. F.; Santos, E. B.; Alves, M. C.; Arruda, O. G.

2012-04-01

365

[Latin American malacology. Freshwater mollusks from Argentina].  

PubMed

A report and an updated list with comments on the species of freshwater molluscs of Argentina which covers an area of 2 777 815 km2 is presented. Distributions of Gastropoda and Bivalvia families, endemic, exotic, invasive as well as entities of sanitary importance are also studied and recommendations on their conservation are provided. Molluscs related to the Del Plata Basin have been thoroughly studied in comparison to others areas of the country. This fauna exhibits relatively the biggest specific richness and keeps its affinity with the fauna of other regions of the basin in areas of Paraguay and Brasil. The 4 500 records of molluscs considered in this paper arise from the study of the collections of Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", Buenos Aires; Museo de La Plata, La Plata and Fundación "Miguel Lillo", Tucumán. These institutions keep very important collections of molluscs in southern South America. Field information has recently been obtained and localities cited by other authors are also included in the data base. Until today, 166 species have been described, 101 belonging to 10 families of Gastropoda and 65 to 7 of Bivalvia. Families with highest specific richness are Lithoglyphidae (22) and Sphaeriidae (25), respectively. The number of endemic species (those present only in Argentina) by family is: Gastropoda: Ampullariidae (1), Cochliopidae (10), Lithoglyphidae (11), Thiariidae (3), Chilinidae (11), Lymnaeidae (2) and Physidae (2?); Bivalvia: Hyriidae (1?); Etheriidae (1?) and Sphaeriidae (10). Families with a distribution that comprise almost the whole country are: the Sphaeriidae and the gastropods Cochliopidae, Chilinidae and Lymnaeidae. Families Erodonidae and Solecurtidae (Bivalvia) were registered in mixohaline environments from Buenos Aires province. Gastropod families Thiaridae and Glacidorbiidae show a very restricted distribution. The rest of the families are present mainly in the center and north of the country. Species of sanitary interest are the propagators of: schistosomiasis -Biomphalaria peregrina, B. straminea y B. tenagophila, Planorbidae-, fasciolasis -Lymnaea viatrix and L. columnella, Lymnaeidae- and dermatitis -Chilina gibbosa and C. fluminea, Chilinidae. Invasive species are: Corbicula fluminea (Corbiculidae) and Limnoperna fortunei (Mytilidae). The construction of new areas for the protection and conservation of the high risk endemic species of freshwater molluscs is a priority. It is necessary to give special attention to the species of the patagonic mountain range and of the mesopotamic area of the Del Plata Basin. PMID:18624229

Rumi, Alejandra; Gregoric, Diego E Gutiérrez; Núñez, Verónica; Darrigran, Gustavo A

2008-03-01

366

Atmospheric anionic and VOCs composition from Detroit Plateau, Antarctic Peninsula  

NASA Astrophysics Data System (ADS)

In the context of Climate of Antarctica and South America project (CASA/ Brasil-Chile-EUA scientific cooperation) atmospheric sampling were performed in 2007 austral summer (nov-dec) at Detroit Plateau (64°05'07”S, 59°38'42”W, ~ 2,000 m above sea level) in the Antarctic Peninsula, aiming to analyze the anionic and VOCs (Volatile Organic Compounds) composition in the low atmosphere, and to better understand the regional atmospheric transport patterns. Air samples were collected using stainless steel canisters and filter pack. Local climatological data were obtained from an AWS installed in the site during the scientific expedition and regional data are based on NCEP/NCAR and NOAA HYSPLIT reanalyzes. Air samples were collected using eight 2.5L-canisters, and 0.1µm pore size Nuclepore filter at 6h / day intervals. In laboratory, after cryogenic concentration, air samples from canisters were analyzed using gas chromatography (GC/MS). While all filters were leached out with 15 mL Milli-Q water using a ultrasound device, and these solutions were sealed in Teflon vials until later analysis through an ICPMS (Inductively Coupled Plasma Mass Spectroscopy) system. Analyses of the AWS data, during the studied period, showed a mean temperature of -10.4 ± 3.8oC, while the atmospheric pressure was 770.1 ± 10.2 hPa. Results from atmospheric reanalyzes indicates that Detroit Plateau has a significant influence of continental and marine aerosols. Al and Fe were the main represents in the aerosol with terrigenous influence, while Na showed the high concentration in the aerosol with marine influence. Total quantification of VOCs in the local atmosphere showed mean value of 9.8 ug/m3, with maximum (34.1 ug/m3) observed in 29 November and minimum (1.3 ug/m3) during 12 December. Our previous results indicate Detroit Plateau as a well preserved atmospheric site, allowing its use for climatological/glaciological studies.

Alencar, A. S.; Evangelista, H.; Cataldo, M.; Coôrreia, S.; Simoes, J. C.; Wainer, I.; Jaña, R.; Kurbatov, A.; Potocki, M.; Mayewski, P. A.

2009-12-01

367

Transiting exoplanets from the CoRoT space mission. XI. CoRoT-8b: a hot and dense sub-Saturn around a K1 dwarf  

NASA Astrophysics Data System (ADS)

Aims: We report the discovery of CoRoT-8b, a dense small Saturn-class exoplanet that orbits a K1 dwarf in 6.2 days, and we derive its orbital parameters, mass, and radius. Methods: We analyzed two complementary data sets: the photometric transit curve of CoRoT-8b as measured by CoRoT and the radial velocity curve of CoRoT-8 as measured by the HARPS spectrometer. Results: We find that CoRoT-8b is on a circular orbit with a semi-major axis of 0.063 ± 0.001 AU. It has a radius of 0.57 ± 0.02 RJ, a mass of 0.22 ± 0.03 MJ, and therefore a mean density of 1.6 ± 0.1 g cm-3. Conclusions: With 67% of the size of Saturn and 72% of its mass, CoRoT-8b has a density comparable to that of Neptune (1.76 g cm-3). We estimate its content in heavy elements to be 47-63 {M}_?, and the mass of its hydrogen-helium envelope to be 7-23 {M}_?. At 0.063 AU, the thermal loss of hydrogen of CoRoT-8b should be no more than 0.1% over an assumed integrated lifetime of 3 Ga. Observations made with SOPHIE spectrograph at Observatoire de Haute Provence, France (PNP.07B.MOUT), and the HARPS spectrograph at ESO La Silla Observatory (081.C-0388 and 083.C-0186). The CoRoT space mission, launched on December 27, 2006, has been developed and is operated by the CNES with the contribution of Austria, Belgium, Brasil, ESA, Germany, and Spain.Both data sets are available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/520/A66

Bordé, P.; Bouchy, F.; Deleuil, M.; Cabrera, J.; Jorda, L.; Lovis, C.; Csizmadia, S.; Aigrain, S.; Almenara, J. M.; Alonso, R.; Auvergne, M.; Baglin, A.; Barge, P.; Benz, W.; Bonomo, A. S.; Bruntt, H.; Carone, L.; Carpano, S.; Deeg, H.; Dvorak, R.; Erikson, A.; Ferraz-Mello, S.; Fridlund, M.; Gandolfi, D.; Gazzano, J.-C.; Gillon, M.; Guenther, E.; Guillot, T.; Guterman, P.; Hatzes, A.; Havel, M.; Hébrard, G.; Lammer, H.; Léger, A.; Mayor, M.; Mazeh, T.; Moutou, C.; Pätzold, M.; Pepe, F.; Ollivier, M.; Queloz, D.; Rauer, H.; Rouan, D.; Samuel, B.; Santerne, A.; Schneider, J.; Tingley, B.; Udry, S.; Weingrill, J.; Wuchterl, G.

2010-09-01

368

Global peroxyacetyl nitrate (PAN) retrieval in the upper troposphere from limb emission spectra of the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS)  

NASA Astrophysics Data System (ADS)

We use limb emission spectra of the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) onboard the ENVIronmental SATellite (ENVISAT) to derive the first global distribution of peroxyacetyl nitrate (PAN) in the upper troposphere. PAN is generated in tropospheric air masses polluted by fuel combustion or biomass burning and acts as a reservoir and carrier of NOx in the cold free troposphere. Since PAN exhibits continuum-like broadband structures in the mid-infrared region, we have applied a contiguous analysis window covering the wavenumber region 775-800 cm-1 for retrieval. The interfering species CCl4, HCFC-22, H2O, ClONO2, CH3CCl3 and C2H2 were fitted along with PAN, whereas pre-fitted profiles were used to model the contribution of other contaminants like ozone. Sensitivity tests consisting in retrieval without consideration of PAN have demonstrated the existence of PAN signatures in MIPAS spectra obtained from polluted air masses. The analysed dataset consists of 10 days between 4 October and 1 December 2003. This period covers the end of the biomass burning season in South America and South and East Africa, in which generally large amounts of pollutants are produced and distributed over wide areas in the southern hemispheric free troposphere. Elevated PAN amounts of 200-700 pptv were measured in a large plume extending from Brasil over the Southern Atlantic, Central and South Africa, the South Indian Ocean as far as Australia at altitudes between 8 and 16 km. Enhanced PAN values were also found in a much more restricted area between northern subtropical Africa and India. The most significant northern midlatitude PAN signal in MIPAS data is an area extending at 8 km altitude from China into the Chinese Sea. The average mid and high latitude PAN amounts found at 8 km were around 125 pptv in the northern, but only between 75 and 50 pptv in the southern hemisphere. The PAN distribution found in the southern hemispheric tropics and subtropics is highly correlated with the jointly fitted acetylene (C2H2), which is another pollutant produced by biomass burning, and agrees reasonably well with the CO plume detected during end of September 2003 at the 275 hPa level (~10 km) by the Measurement of Pollution in the Troposphere (MOPITT) instrument on the Terra satellite. Similar southern hemispheric PAN amounts were also observed by previous airborne measurements performed in September/October 1992 and 1996 above the South Atlantic and the South Pacific, respectively.

Glatthor, N.; von Clarmann, T.; Fischer, H.; Funke, B.; Grabowski, U.; Höpfner, M.; Kellmann, S.; Kiefer, M.; Linden, A.; Milz, M.; Steck, T.; Stiller, G. P.

2007-01-01

369

Global peroxyacetyl nitrate (PAN) retrieval in the upper troposphere from limb emission spectra of the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS)  

NASA Astrophysics Data System (ADS)

We use limb emission spectra of the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) onboard the ENVIronmental SATellite (ENVISAT) to derive the first global distribution of peroxyacetyl nitrate (PAN) in the upper troposphere. PAN is generated in tropospheric air masses polluted by fuel combustion or biomass burning and acts as a reservoir and carrier of NOx in the cold free troposphere. PAN exhibits continuum-like broadband structures in the mid-infrared region and was retrieved in a contiguous analysis window covering the wavenumber region 775-800 cm-1. The interfering species CCl4, HCFC-22, H2O, ClONO2, CH3CCl3 and C2H2 were fitted along with PAN, whereas pre-fitted profiles were used to model the contribution of other contaminants like ozone. Sensitivity tests consisting in retrieval without consideration of PAN demonstrated the existence of PAN signatures in MIPAS spectra obtained in polluted air masses. The analysed dataset consists of 10 days between 4 October and 1 December 2003. This period covers the end of the biomass burning season in South America and South and East Africa, in which generally large amounts of pollutants are produced and distributed over wide areas of the southern hemispheric free troposphere. Indeed, elevated PAN amounts of 200-700 pptv were measured in a large plume extending from Brasil over the Southern Atlantic, Central and South Africa, the South Indian Ocean as far as Australia at altitudes between 8 and 16 km. Enhanced PAN values were also found in a much more restricted area between northern subtropical Africa and India. The most significant northern midlatitude PAN signal was detected in an area at 8 km altitude extending from China into the Chinese Sea. The average mid and high latitude PAN amounts found at 8 km were around 125 pptv in the northern, but only between 50 and 75 pptv in the southern hemisphere. The PAN distribution found in the southern hemispheric tropics and subtropics is highly correlated with the jointly fitted acetylene (C2H2), which is another pollutant produced by biomass burning, and agrees reasonably well with the CO plume detected during end of September 2003 at the 275 hPa level (~10 km) by the Measurement of Pollution in the Troposphere (MOPITT) instrument on the Terra satellite. Similar southern hemispheric PAN amounts were also observed by previous airborne measurements performed in September/October 1992 and 1996 above the South Atlantic and the South Pacific, respectively.

Glatthor, N.; von Clarmann, T.; Fischer, H.; Funke, B.; Grabowski, U.; Höpfner, M.; Kellmann, S.; Kiefer, M.; Linden, A.; Milz, M.; Steck, T.; Stiller, G. P.

2007-06-01

370

Nighttime ionosphere thermosphere coupling observed during an intense geomagnetic storm  

NASA Astrophysics Data System (ADS)

The electrodynamics of the ionosphere in the tropical region presents various scientific aspects, which remain subject of intensive investigations and debates by the scientific community. During the year 2002, in a joint project between the Universidade do Vale do Paraíba (UNIVAP) and Universidade Luterana do Brasil (ULBRA), a chain of three Canadian Advanced Digital Ionosondes (CADIs) was established nearly along the geomagnetic meridian direction, for tropical ionospheric studies, such as, changes and response due to geomagnetic disturbances and thermosphere ionosphere coupling and the generation and dynamics of ionospheric irregularities, in the Brazilian sector. The locations of the three ionosondes stations are São José dos Campos (23.2°S, 45.9°W, dip latitude 17.6°S under the southern crest of equatorial ionospheric anomaly), Palmas (10.2°S, 48.2°W, dip latitude 5.5°S near the magnetic equator) and Manaus (2.9°S, 60.0°W, dip latitude 6.4°N between the geographic and geomagnetic dip equators). It should be pointed out that Palmas and Manaus are located on the opposite sides of the magnetic equator but both are south of the geographic equator. The three CADIs work in time-synchronized mode and obtain ionograms every 5 min. This configuration of the ionospheric sounding stations allowed us to study the F-region dynamics during geomagnetically disturbed period in the meridional direction. Just after the installation and testing of the three CADIs, on September 05, 2002 a coronal mass ejection (CME) left the Sun and about 2 days after the CME left the Sun, it reached the Earth’s magnetosphere and complex and multi step events took place during the period September 07 09. In the study we note that the equatorial stations located north (Manaus, dip latitude 6.4°N) and south (Palmas, dip latitude 5.5°S) of the dip equator presented significant F-layer height asymmetries during the storm main phase. In addition, the low-latitude station SJC (dip latitude 17.6°S) presented decrease in the F-layer densities (negative phase), whereas Palmas presented increase in the F-layer densities (positive phase) during the main phase. This was followed by positive phase at both the stations. During the first night of the recovery phase a strong formation and evolution of large-scale ionospheric irregularities (equatorial spread-F (ESF)) was observed, but on the second night of the recovery phase, there was strong and almost simultaneous sporadic E (Es) formation at all three stations. During the presence of Es, spread-F formation is not observed, indicating the suppression of spread-F, possibly by sporadic E.

Fagundes, P. R.; Muella, M. T. A. H.; Bittencourt, J. A.; Sahai, Y.; Lima, W. L. C.; Guarnieri, F. L.; Becker-Guedes, F.; Pillat, V. G.; Ferreira, A. S.; Lima, N. S.

371

The GEOSCOPE program: state of the art in 2006  

NASA Astrophysics Data System (ADS)

The GEOSCOPE program was launched in 1982 by the National Institute of Sciences of Universe (INSU), a department of the French National Center of Scientific Research (CNRS), following the initiative of the Institute of Physics of the Earth of Paris (IPGP). The purpose was the installation of about 25 stations well distributed worldwide (in particular in the southern hemisphere), in the standard configuration defined by the FDSN (very broad-band 24 bit, continuous recording at 20sps). At present, the GEOSCOPE program is operating 28 digital 3-component very- broadband stations. In terms of site locations, the aim of the GEOSCOPE program is almost fulfilled. Our purpose is to maintain the stations at original sites (Indian Ocean, Africa) and to fill some geographical gaps at high latitudes in the southern and northern hemisphere. In particular, we plan to install a new stations VOR (Vorkuta) at high latitudes in Russia and to move the station SEY (Seimchan) to a new location in northern Kamchatka. We are also working on improving data quality and transmission. Historically, GEOSCOPE did not operate real-time data. Continuous data from most of stations arrive with significant delays and records from large events are teletransmitted from some stations (by phone RTC line or through internet) and are made available within one day. To improve this situation, we are replacing the old Streckeisen digitizers with new Quanterra data loggers. This will potentially allow us to receive most of data in our Data Center in a near real-time. Presently data from 8 stations arrive at the IPGP Geoscope Data Center in near real-time, with a delay depending on the station: 1-DZM Dzumac in New Caledonia, a joint DASE/CTBTO/GEOSCOPE station 2-FDF Fort de France in French West Indies 3-SSB Saint Sauveur-Badole in France 4-RER Riviere de l'Est , La Réunion, Indian Ocean 5-KIP Kipapa, Hawaï, a joint USGS/IRIS/GEOSCOPE station 6-TRIS Tristan Da Cunha, a joint USGS/IRIS/GEOSCOPE station 7-TAOE Marquesas Islands, a joint DASE/GEOSCOPE station 8-ATD Arta, Djibouti, a joint CTBTO/CERD/G station The next challenge is to link the maximum number of stations to our Data Center for getting data in real time. To reach this objective in a few years, we plan to upgrade 3 or 4 stations every year, giving priority to the ones easy to link permanently to Paris (TAM/Algeria, SPB/Brasil and CAN/Australia before the end of 2006). For the last ten years we have been progressively installing microbarometers and thermometers, transforming all our stations in multiparameter observatories. We also are participating to the national efforts for the creation of a Tsunami Warning Center at La Reunion Island in the frame of the CNATOI project (Centre National d'Alerte aux Tsunamis dans l'Ocean Indien).

Roult, G.; Geoscope Group, A

2006-12-01

372

The demise of Comet 85P/Boethin, the first EPOXI mission target  

NASA Astrophysics Data System (ADS)

Comet 85P/Boethin was selected as the original comet target for the Deep Impact extended mission, EPOXI. Because this comet had been only observed at two apparitions in 1975 and 1986 and consequently had a large ephemeris error, an early intense recovery effort similar to that of 1P/Halley was undertaken beginning in 2005 using the ESO Very Large Telescopes (VLTs) in a distant comet program. These were challenging observations because of the low galactic latitude, and an error ellipse (the line of variations) that was larger than the CCD FOV, and the comet was not seen. Dedicated recovery observing time was awarded on the Subaru telescope in April and May 2006, and June 2007, in addition to time on the VLT and Canada-France-Hawaii telescopes during July-August 2007 with wide field mosaics and mosaicing techniques. The limiting V magnitudes from these observing runs ranged between 25.7 and 27.3 and again the comet was not seen in the individual nights. A new image processing technique was developed to stack images over extended runs and runs after distorting them to account for dilations and rotations in the line of variations using modifications of the world coordinate system. A candidate at V ˜ 27.3 was found in the CFHT data along the LOV, 2.5' west of the nominal ephemeris position. The EPOXI mission was unwilling to re-target the spacecraft without a confirmation. Additional time was secured using the Spitzer Space Telescope, the Gemini South 8-m telescope, the Clay and Baade (Magellan 6.5 m), CTIO 4 m, and SOAR 4 m telescopes during 2007 September and October A composite image made by stacking the new data showed no plausible candidate nucleus to a limiting magnitude of V = 28.5, corresponding to a nucleus radius between 0.1 and 0.2 km (assuming an albedo of 0.04). The comet was declared lost, presumably having disintegrated. Searches in the WISE data set revealed no debris trail, but no constraints on the possible time of disruption can be made. NASA approved the trajectory correction maneuver to go to Comet 103P/Hartley 2 on 2007 November 1. Many observers searched for the comet as it came to its December 2008 perihelion, but no trace of the nucleus was found. Based on observations collected at the Very Large Telescope, Chile, in part on data collected at Subaru Telescope, which is operated by the National Astronomical Observatory of Japan, in part using data gathered with the 6.5 m Magellan Telescopes located at Las Campanas Observatory, Chile, in part on observations obtained with MegaPrime/MegaCam, a joint project of CFHT and CEA/DAPNIA, at the Canada-France-Hawaii Telescope (CFHT) which is operated by the National Research Council (NRC) of Canada, the Institut National des Science de l'Univers of the Centre National de la Recherche Scientifique (CNRS) of France, and the University of Hawaii, in part using data collected at the Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, which are operated by the Association for Research in Astronomy, under contract with the National Science Foundation, and in part on observations obtained at the Southern Astrophysical Research (SOAR) telescope, which is a joint project of the Ministério da Ciência, Tecnologia, e Inovação (MCTI) da República Federativa do Brasil, the U.S. National Optical Astronomy Observatory (NOAO), the University of North Carolina at Chapel Hill (UNC), and Michigan State University (MSU). This work is also based in part on observations taken with the Spitzer Space Telescope, which is operated by JPL/Caltech under a contract with NASA.

Meech, K. J.; Kleyna, J.; Hainaut, O. R.; Lowry, S. C.; Fuse, T.; A'Hearn, M. F.; Chesley, S.; Yeomans, D. K.; Fernández, Y.; Lisse, C.; Reach, W.; Bauer, J. M.; Mainzer, A. K.; Pittichová, J.; Christensen, E.; Osip, D.; Brink, T.; Mateo, M.; Motta, V.; Challis, P.; Holman, M.; Ferrín, I.

2013-02-01