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Search Results: 1 - 10 of 49111 matches for " Ricardo Ventura;Rodrigues-Carvalho "
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Arquivo de Antropologia Física do Museu Nacional: fontes para a história da eugenia no Brasil
Souza, Vanderlei Sebasti?o de;Santos, Ricardo Ventura;Coelho, M?nica Costa S.;Hannesch, Ozana;Rodrigues-Carvalho, Claudia;
História, Ciências, Saúde-Manguinhos , 2009, DOI: 10.1590/S0104-59702009000300012
Abstract: the article presents a set of documental sources that are part of the physical anthropology archive administered by the national museum's biological anthropology sector (ufrj). the archive holds important documentation on the first brazilian congress of eugenics, held in rio de janeiro in 1929, in celebration of the national academy of medicine centennial. in addition to the originals of papers presented at the event (some unpublished), the archive also contains a series of documents compiled by the congress organizers, including announcements of the event, attendee registrations, correspondence, newspaper and magazine clippings of articles on eugenics, as well as motions, reports, and final minutes, all of which makes this collection invaluable in understanding the history of eugenics in brazil.
Cranios, corpos e medidas: a constitui??o do acervo de instrumentos antropométricos do Museu Nacional na passagem do século XIX para o XX
, Guilherme José da Silva e;Santos, Ricardo Ventura;Rodrigues-Carvalho, Claudia;Silva, Elizabeth Christina da;
História, Ciências, Saúde-Manguinhos , 2008, DOI: 10.1590/S0104-59702008000100012
Abstract: analyzes the formation of the collection of scientific instruments at the museu nacional's biological anthropology sector (previously known as the physical anthropology division), brazil. it focuses on the instruments used for anthropometric measurements. by drawing relations between this collection and other of the institution's biological anthropology collections, as well as the activities of museu nacional researchers within their sociopolitical and academic contexts, we arrive at a privileged view of the scientific methods and theories in use in the final decades of the nineteenth century and beginning of the twentieth.
Human mobility on the Brazilian coast: an analysis of strontium isotopes in archaeological human remains from Forte Marechal Luz Sambaqui
Bastos, Murilo Q. R;Souza, Sheila M. F. Mendon?a de;Santos, Roberto V;Lima, Bárbara A. F;Santos, Ricardo V;Rodrigues-Carvalho, Claudia;
Anais da Academia Brasileira de Ciências , 2011, DOI: 10.1590/S0001-37652011000200030
Abstract: this study investigated strontium isotopes in the dental enamel of 32 human skeletons from forte marechal luz sambaqui (shellmound), santa catarina, brazil, aiming at identifying local and non-local individuals. the archeological site presents pot sherds in the uppermost archeological layers. dental enamel was also examined from specimens of terrestrial fauna (87sr/86sr = 0. 71046 to 0. 71273) and marine fauna (87sr/86sr = 0. 70917). the 87sr/86sr isotope ratio for individuals classified as locals ranged from 0. 70905 to 0. 71064 and was closer to the isotope ratio of the seawater than to the ratio of the terrestrial fauna, indicating a strong influence of marine strontium on the inhabitants of this sambaqui. the results indicate the existence of three non-local individuals (87sr/86sr = 0. 70761 to 0. 70835), buried in both the level without pottery and the layer with pottery, possibly originated from the santa catarina plateau, close to the municipality of lages, or from the curitiba plateau. the occurrence of a slight difference between the isotope ratios of local individuals buried in the archeological layer without pottery, when compared to those in the layer with pottery, suggests a possible change in dietary patterns between these two moments in the site's occupation
Recovering mitochondrial DNA lineages of extinct Amerindian nations in extant homopatric Brazilian populations
Vanessa F Gon?alves, Flavia C Parra, Higgor Gon?alves-Dornelas, Claudia Rodrigues-Carvalho, Hilton P Silva, Sergio DJ Pena
Investigative Genetics , 2010, DOI: 10.1186/2041-2223-1-13
Abstract: We studied 173 individuals from Queixadinha, a small village located in a territory previously occupied by the now extinct Botocudo Amerindian nation. Pedigree analysis revealed 74 unrelated matrilineages, which were screened for Amerindian mtDNA lineages by restriction fragment length polymorphism. A cosmopolitan control group was composed of 100 individuals from surrounding cities. All Amerindian lineages identified had their hypervariable segment HVSI sequenced, yielding 13 Amerindian haplotypes in Queixadinha, nine of which were not present in available databanks or in the literature. Among these haplotypes, there was a significant excess of haplogroup C (70%) and absence of haplogroup A lineages, which were the most common in the control group. The novelty of the haplotypes and the excess of the C haplogroup suggested that we might indeed have identified Botocudo lineages. To validate our strategy, we studied teeth extracted from 14 ancient skulls of Botocudo Amerindians from the collection of the National Museum of Rio de Janeiro. We recovered mtDNA sequences from all the teeth, identifying only six different haplotypes (a low haplotypic diversity of 0.8352 ± 0.0617), one of which was present among the lineages observed in the extant individuals studied.These findings validate the technique of homopatric targeting as a useful new strategy to study the peopling and colonization of the New World, especially when direct analysis of genetic material is not possible.When Europeans arrived in Brazil in 1500, they found more than two million Amerindians [1], many of them inhabiting the eastern part of the country. Five hundred years later, in the 2000 Brazilian census, there remained only 734 thousand Amerindians in Brazil, almost all of them living in the northern (Amazon region) and the western states. We know almost nothing about the genetic makeup of the once numerous Amerindian populations that lived in the eastern part of Brazil. Even the historical evidence th
Paleogenetic Studies in Guajajara Skeletal Remains, Maranh?o State, Brazil
Daniela Leite,Alysson Leit?o,Ana Paula Schaan,Anderson N. R. Marinho,Sheila Souza,Claudia Rodrigues-Carvalho,Francisca Cardoso,?ndrea Ribeiro-dos-Santos
Journal of Anthropology , 2014, DOI: 10.1155/2014/729120
Abstract: In the early 17th century, French and Portuguese colonizers and Jesuit priests settled in the state of Maranh?o and made contact with the Guajajara, an ethnic group that lived along the margins of the Pindaré River. The Guajajara maintained contact with Brazilian national society over the centuries, including with Brazilian admixed populations, and with African slaves that flocked towards the region from the 18th century onwards. The present study investigates the origins of this admixture using mitochondrial genetic variability. The bones of 12 individuals investigated, which are currently part of the collection of the National Museum, were tested for genetic diversity. aDNA was extracted by the phenol-chloroform method and by DNA IQ (Promega, Madison, WI, USA). Amplification of the HVS I region was performed by PCR, followed by direct sequencing using the Big Dye kit (Life Technologies, Foster City, CA, USA). This region was found to represent haplogroups of Amerindians (A, C, and D) and Africans (L, L1b, L1c, and L3). The presence of African haplogroups in Guajajara bones from as early as the 18th century is consistent with historical and anthropological data, suggesting the admixture with Africans and/or Afrodescendants. Therefore, this study demonstrates that women with African haplogroups were introduced into the Guajajara population. 1. Introduction 1.1. The Guajajara Among the indigenous peoples that still inhabit the vast South American continent are the Guajajara, an example of ethnic resistance after four centuries of contact with European, Brazilian, and African populations. The Guajajara are also referred to as the Tenetehara-Guajajara of Maranh?o to distinguish them from the Tenetehara-Tembé of Pará, and they belong to the Tupi linguistic family. According to Nimuendaju [1], during the 19th century, the Guajajara lived along the Pindaré, Grajaú, and Mearim rivers (Figure 1), an area that they had occupied since pre-Columbian times according to Wagley and Galv?o [2]. Figure 1: Current distribution of the studied Guajajara villages of Kamiranga and Januária (in red) and the quilombola populations (in black) in the state of Maranh?o, Brazil (adapted from [ 59]). A more detailed analysis of the population’s demography revealed that although their population size had been severely reduced in the past, it recovered significantly during at least two historical periods and is an extraordinary example of demographic expansion. Another particularity of these groups is their substantial level of admixture [3], both with Africans and Europeans.
Vigilancia Alimentar e Nutricional para os povos indígenas no Brasil: análise da constru o de uma política pública em saúde Food and Nutrition Surveillance for indigenous peoples in Brazil: analysis of the construction of a public health politics
Aline Diniz Rodrigues Caldas,Ricardo Ventura Santos
Physis: Revista de Saúde Coletiva , 2012, DOI: 10.1590/s0103-73312012000200008
Abstract: A partir de 2003, foi proposta a implanta o de um sistema de vigilancia alimentar e nutricional (Sisvan) no ambito do subsistema de saúde indígena, o que tem contado com recursos da Uni o e de um acordo de empréstimo com o Banco Mundial para sua implementa o. O objetivo deste estudo foi analisar quais condicionantes e fatores levaram os gestores do subsistema a reconhecer os deficits nutricionais dos povos indígenas como problema de saúde pública e a escolher o Sisvan como alternativa para enfrentamento da quest o. Esta é uma pesquisa de abordagem qualitativa baseada na proposta analítica de John Kingdon (1984), que se concentra nas fases iniciais do ciclo de uma política pública, quais sejam: a fase de constru o da agenda governamental e a de especifica o de alternativas de solu o. Os resultados evidenciam que, na convergência de um fluxo de problemas sobre as condi es nutricionais dos povos indígenas com ambiente político favorável, abriu-se uma janela de oportunidade para inseguran a alimentar e nutricional desses povos ser reconhecida como problema e ascender à agenda de decis o governamental. Como alternativa de política na área de saúde, os gestores elegeram o Sisvan, proposta já difundida internacionalmente e que no Brasil foi incorporada ao SUS a partir de 1990. O Sisvan foi formalizado em 2006 no subsistema de saúde indígena no nível nacional. The implementation of a food and nutrition surveillance system (Sisvan) aimed at indigenous communities in Brazil was first proposed in 2003 and since then has relied on funds provided by the Brazilian federal government and the World Bank. This study aimed to examine the conditions and factors which led the managers of the indigenous health subsystem to recognize the nutritional deficits of indigenous peoples as a relevant public health problem and the reasons why Sisvan was chosen as an alternative. This is a qualitative study based on analytical perspective of John Kingdon (1984), which focuses on the early stages of the policy cycle, namely: the setting of a political agenda and the specifications of alternatives from which a choice for solution is made. The results show that the convergence of a flow of critical situations related to the nutritional status of indigenous peoples coupled with a favorable political stream opened a "window of opportunity". This led to the situation of nutritional insecurity of these people to be recognized as a problem and become relevant in the government decision agenda. Sisvan, which was an internationally recognized alternative and which had been implemented in
Comportamento de busca e uso da informa??o: um estudo com alunos participantes de empresas juniores
Brum, Marco Antonio Carvalho;Barbos, Ricardo Rodrigues;
Perspectivas em Ciência da Informa??o , 2009, DOI: 10.1590/S1413-99362009000200005
Abstract: this work analyzes the information behavior of member of junior enterprises in brazil. sources were analyzed in terms of their frequency, relevance and reliability. moreover, it was investigated the usefulness of these sources for different goals. the results show that personal sources are more often accessed and more relevant, either through the internet or in direct contacts for a simple conversation. the most reliable sources for them are the books and the teachers. the students answered that they use predetermined information sources mainly for learning and sharing information with other people.
Associa??o de altera??es cromáticas e uso de anticoncepcionais orais
Ventura, Roberta;Malta, Juliana Serrano Machado;Lyra, Alessandra Freitas Carneiro;Danda, Diana Maria Rodrigues;Urbano, Lúcia Carvalho de Ventura;
Arquivos Brasileiros de Oftalmologia , 2009, DOI: 10.1590/S0004-27492009000100012
Abstract: purpose: to evaluate the association between oral low-dose contraceptives and color vision alterations. methods: were included in the study 30 women, sixteen used oral contraceptive for less than five years (group i) and 14 used it for more than five years (group ii). the ishihara, city university color vision test, and the d 15 desaturated tests were used. results: no characteristic alterations in the chromatic perception were found in any of the groups. conclusion: in the studied sample, low-dose oral contraceptive has not influenced color vision, independent of the time of use.
Produ??o e cita??o em Saúde Coletiva: um olhar a partir dos periódicos Cadernos de Saúde Pública e Revista de Saúde Pública
Carvalho, Leandro;Coimbra Jr., Carlos E. A.;Souza-Santos, Reinaldo;Santos, Ricardo Ventura;
Cadernos de Saúde Pública , 2007, DOI: 10.1590/S0102-311X2007001200024
Abstract: this is a comparative bibliometric study of the two main scientific journals in the public health field in brazil: cadernos de saúde pública (csp) and revista de saúde pública (rsp). twenty-four issues of each periodical were analyzed, published from 1996 to 2003, comprising a sample of 819 articles (496 from csp and 323 from rsp). the following elements in the articles were identified and analyzed: thematic area of the article and citation pattern of publications (articles in periodicals, books and/or book chapters, theses/dissertations, internet documents, "gray" literature, and other types of publications). the resulting data showed that the majority of the articles represent the sub-area of "epidemiology". the citation pattern in the journals showed articles in periodicals in first place, followed by citations of books and/or book chapters. papers in the sub-area "social sciences in health" published in csp are exceptions, since books and chapters are the most frequently cited. the authors discuss the implications of the findings for the characterization and evaluation of scientific output in public health in brazil.
Determina o de Intervalos ótimos de Irriga o Utilizando a Barreira Logarítmica
Angel Ramon Sanchez Delgado,Sérgio Drumond Ventura,Daniel Fonseca de Carvalho,Ricardo Dias dos Santos
Revista Brasileira de Agricultura Irrigada , 2010, DOI: 10.7127/rbai.v4n200030
Abstract: Quando a irriga o está restrita pela disponibilidade limitada de água ou pelo limite da capacidade do sistema de irriga o e a terra é o fator limitante da produ o, a água economizada pela redu o da profundidade de irriga o pode ser utilizada para irrigar um acréscimo de terra. Nesse caso, o problema é determinar uma lamina ótima em rela o à profundidade aplicada e a área a ser irrigada; isto é, procura-se maximizar a receita líquida total sujeita às restri es de recursos pré-fixados e a uma estrutura de pre os e custos pré-determinados. Neste trabalho, apresentamos um procedimento computacional baseado no método barreira logarítmica (MBL) para a procura de intervalos ótimos de irriga o entre a lamina que maximiza a produ o e a lamina que maximiza a receita líquida com limita es hídricas. Foram realizados três experimentos numéricos baseados nas fun es de resposta quadráticas das culturas: algod o, trigo e melancia, para esta última foi considerada uma varia o de pre os e custos de água. Considerando que os intervalos ótimos de irriga o obtidos s o completamente compatíveis com os apresentados na literatura, pode-se concluir que o procedimento computacional e iterativo tipo barreira logarítmica implementado na linguagem octave, constitui uma alternativa confiável na tomada de decis es econ micas que se apresentam em um planejamento ótimo de irriga o com déficit.
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