688 resultados para Afro-Asiatic


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Si les études sur les groupes noirs ruraux connaissent un essor dans l´Antropologie brésilienne contemporaine, au Nordeste, et spécialement au Rio Grande do Norte, ce genre de recherches restent rares. Ce travail a comme principal objectif de faire une description ethnographique des communautés du Pêga, do Arrojado e do Engenho Novo, dans la commune de Portalegre/RN, désignées comme des descendants africains et dont les membres se reconnaissent comme appartenant a une "grande famille". Ainsi, nous voulons analyser les processus d´élaboration d´une identité collective et comprendre le rôle des relations de parenté dans la vie cotidienne, festive et religieuse de Portalegre. En effet, nous pouvons observer que les "parents" développent des stratégies économiques et affirment leur alterité, reprennant des traits culturels et religieux qui leur sont propres pour se présenter comme un groupe doté d´une grande cohésion face a la société environnante. Nous utilisons la méthode ethnographique et la technique de l´observation participante, alliée à l´analyse des sources historiques primaires dans le but de décrire ces pratiques et stratégies. Nous pensons que la participation des membres du groupe à la production agricole, spécialement dans la confection de la farine de manioc, la construction des relations sociales au quotidien et l´organisation de la danse de São Gonçalo représentent autant d´occasions où la mémoire du groupe se fortifie, l´identité collective se cristallise et où la sociabilité se trouve consolidée. Nous analysons ces pratiques collectives et ces moments festifs comme des moyens de réaffirmation d´une identité locale centrée sur les relations de parenté

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The tradition and living in African-Brazilian religious spaces, called yards, reveal how dynamic the reproduction and exchange of knowledge are, and that through their worldview, reveal ways of dealing with health and disease. The yards are culturally rich territories, in which people shape concepts, practices, and beliefs about health, disease and forms of healing, passed on from generation to generation through oral tradition. With the advent of HIV/AIDS from the 80s, a new challenge is established in the community of the yards and in the individual trajectories of people affected by the disease, who since an early age participate in this religious practice. The objective of this research is the analysis on the stigma in living with HIV/AIDS in yards of Umbanda in Fortaleza-Ceará, considering the (re)production of social dramas experienced by the community in question. During the investigation we adopted two basic parameters: the first one considers the understanding of the reproduction of stigma (or deteriorated identity) in relation to HIV/AIDS in its socio-historical dimension and its effects in the investigated context (Goffman, 1988). And the second one refers to the creation and reproduction of social dramas as a social experience carried through learning, handling and symbolic performance, which is reproduced in four stages: rupture, crisis, corrective action and reintegration (Turner, 1971)

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As data on X-chromosomal short tandem repeats (X-STRs) for the Brazilian population are scarse, the aim of this study was to determine the allele frequencies of five X-STRs (DXS6854, DXS7424, DXS101, DXS6808 and DXS7132) in the São Paulo State, Brazil. No deviations from the Hardy-Weinberg equilibrium were observed, with the exception of DXS101. The forensic efficiency parameters demonstrated that DXS101 was the most informative marker. Population comparisons revealed that the X-STR profile sampled in the state of São Paulo was more similar to European and African populations than Asiatic populations reported in this work.

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As enzimas G6PD e 6PGD são responsáveis pela geração do aporte de NADPH, necessário para a detoxificação dos agentes oxidantes produzidos pelo estresse oxidativo metabólico nos eritrócitos. Devido à alta prevalência de deficiência de G6PD na população mundial, principalmente de origem negróide africana, muitos estudos têm sido realizados na tentativa de conhecer melhor a atuação destas enzimas. O objetivo deste estudo foi avaliar a atividade enzimática da 6PGD, nos deficientes de G6PD, para verificar a existência de aumento da atividade desta enzima, correlacionando com um possível aumento do número de reticulócitos ou presença de alterações da série vermelha. A pesquisa em 2.657 indivíduos do sexo masculino resultou em 97 deficientes de G6PD, determinando uma prevalência de 3,65% para a região de Bauru (SP), com atividade enzimática média de G6PD de 1,74 UI.g Hb-1. min-1 a 37ºC, 14,4% da atividade da G6PD normal. A atividade enzimática média da 6PGD foi de 9,5 UI.g Hb-1. min-1 a 37ºC, estando aumentada em 47,4% dos deficientes de G6PD. Os resultados não confirmaram que a hipótese do aumento da atividade enzimática da 6PGD, em deficientes de G6PD, seja decorrente da presença de um número aumentado de reticulócitos na corrente circulatória, faixa etária ou alterações eritrocitométricas que denotem anemia. O mais provável é que a hemólise autolimitada, imposta pelos processos oxidativos, preserve os eritrócitos mais jovens, que possuem atividade enzimática mais elevada, uma vez que naturalmente ocorre diminuição da atividade destas enzimas com o envelhecimento celular.

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OBJETIVO: avaliar os efeitos da isoflavona, do gérmen da soja, sobre os sintomas climatéricos e o perfil lipídico na mulher em menopausa. MÉTODOS: foi conduzido estudo prospectivo, com 50 mulheres em menopausa, divididas em: G1, usuárias de isoflavona (60 mg/dia) (n=25), e G2, placebo (n=25). Os critérios de inclusão foram FSH >40 mUI/mL e presença de fogachos. Foram excluídas as vegetarianas, fumantes, asiáticas, portadoras de doenças gastrointestinais e usuárias de terapia de reposição hormonal. No seguimento, de seis meses, foram obtidos o índice menopausal de Kupperman (IMK), o perfil hormonal e o lipídico. Na análise estatística, empregaram-se ANOVA, o teste t pareado e as provas não paramétricas de Wilcoxon e Mann-Whitney. RESULTADOS: os valores medianos do IMK, inicialmente iguais entre os grupos (IMK = 20), reduziram-se nas usuárias de isoflavona aos 2 e 4 meses (IMK = 14 e 9, respectivamente) e no grupo controle, apenas aos 2 meses (IMK = 15) (p<0,01). Ao final do estudo, a isoflavona foi superior ao placebo na redução dos fogachos (44% versus 12%, respectivamente). Aos seis meses, verificou-se que os valores médios de estradiol foram superiores no G1 quando comparados ao G2 (18,0 ± 6,7 versus 12,3 ± 3,8 ng/dL) (p<0,05), sem alterações no FSH e LH. Entre as usuárias de isoflavona, houve redução de 11,8% no LDL (de 151,5 ± 39,2 para 133,6 ± 26,4 mg/dL) e elevação de 27,3% no HDL (de 44,0 ± 11,3 para 56,0 ± 11,9 mg/dL) (p<0,05). CONCLUSÕES: a isoflavona, do gérmen da soja, induziu efeitos favoráveis sobre os sintomas climatéricos e o perfil lipídico, revelando-se opção interessante como terapêutica alternativa para mulheres em menopausa.

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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A literatura escrita tem sido um espaço privilegiado para a representação e, consequentemente, para o registro e divulgação dos valores e costumes de variados grupos e segmentos sociais. No conto analisado neste ensaio – Eguns –, o escritor paulistano João Antônio (1937-1996) traz um narrador que descreve com detalhes uma rara festa religiosa ocorrida na Bahia, destinada ao culto dos ancestrais. Contemplativo e respeitoso, limita-se a contar o que a tradição religiosa permite. O contato com a alteridade ganha foros de rito iniciático e a experiência – em sentido forte – é transferida ao leitor.

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Nous avons analysé les résultats d'une recherché sur les pratiques de guérison mystico-religieuses (chez les Églises Évangéliques et Catholique Renovée, et chez l'Oumbanda). Ainsi que leur comparaison avec le traitement fourni, chez les Ambulatoires de Santé Mentale publiques, aux individus se plaignant de souffrance psychique. L'analyse statistique a révélé que les pratiques de guérison mystico-religieuses sont efficaces à la solution des problèmes de ceux qui les ont cherché, en surmontant, dans le court délai, l'efficacité obtenue par les pratiques ambulatoriales. Un des principaux moyens d'efficacité des pratiques de guérison mystico-religieuses consiste dans l'offre de sens de diverses nuances, d'où se ressort le sens radical de teneur imaginaire, qui implique en des adhésions institutionelles du type fanatique ou ritualistique en bonne partie des cas. Les pratiques de guérison mystico-religieuses semblent fonctioner comme des orthopédies des maladies de l'individualisme contemporain, en réinstallant, par des moyens syntoniques, quelque fonctionalité de la catégorie individu. Comme suite de l'analyse, nous arrivons à l'hypothèse sur l'existence d'une Culture du Mysticisme en état avancé de formation dans le contexte brésilien, comme conséquence des caractéristiques culturelles et des effets de la perturbation des rapports du sujet avec le domaine du symbolique, dans les sociétés de consommation mondialisées à exclusion sociale accentuée et affectées par une importante crise de sens, conséquence de l'ébranlement des idéaux les plus basilaires du libéralisme.

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Utilizando-se a técnica de Harada & Mori foi efetuada verificação das espécies de Ancylostomidae prevalentes entre imigrantes europeus, asiáticos e brasileiros residentes no município de Botucatu, Estado de São Paulo, Brasil. Ancylostoma duodenale foi encontrado em 8,5% dos imigrantes asiáticos e Necator americanus em 3,5% dos europeus e em 18% dos brasileiros examinados.

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The leaf beetle Metriona elatior from Brazil-Argentina was screened in the Florida (USA) State quarantine facility as a potential biological control agent of tropical soda apple, Solanum viarum, a recently arrived weed species. Multiple-choice host-specificity tests were conducted in small cages (60 cm x 60 cm x 60 cm) using 95 plant species in 29 families. Adults fed heavily on the main target weed (S. viarum), and on turkeyberry, Solanum torvum (noxious weed of Asiatic origin); fed moderately on red soda apple, Solanum capsicoides (weed of South American origin), and eggplant, Solanum melongena (economic crop); and fed lightly on aquatic soda apple, Solanum tampicense (weed of Mexican-Caribbean-Central American origin), and on silverleaf nightshade, Solanum elaeagnifolium (native weed widely distributed). M. elatior adults laid 84 to 97% of their egg masses on S. viarum, and 3 to 16% on S. melongena. Non-choice host-specificity tests were also conducted in quarantine in which M. elatior adults and neonate larvae were exposed to 17 and 19 plant species, respectively. Tests with the neonates indicate that this insect was able to complete its development on S. viarum, S. torvum, S. melongena, and S. capsicoides. Although some adult feeding and oviposition occurred on S. melongena in quarantine on potted plants in small cages, no feeding or oviposition by M. elatior was observed in field experiments conducted in Brazil. Surveys in unsprayed S. melongena fields in Argentina and Brazil indicated that M. elatior is not a pest of S. melongena in South America. The evidence obtained from the South-American field surveys, Brazil open-field experiments, and Florida quarantine host specificity tests indicate that M. elatior causes significant feeding damage to S. viarum, and does not represent a threat to S. melongena crops in the USA. Therefore an application for permission to release M. elatior against S. viarum in the USA was submitted in October 1998.

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This study is the first assessment of mollusk fossil assemblages relative to the compositional fidelity of modern mollusk living and death assemblages. It also shows that the sedimentary record can provide information on the original, non-human-impacted, freshwater malacofauna biodiversity, based on Late Pleistocene shells. The fossil mollusk assemblage from the Touro Passo Formation (Pleistocene-Holocene) was compared to living and death assemblages of the Touro Passo River, southern Brazil, revealing little resemblance between fossil and live-dead species composition. Although the living and death assemblages agree closely in richness, species composition, and species relative abundances (both proportional and rank), the fossil assemblage differs significantly from both modern assemblages in most of these measures. The fossil assemblage is dominated by the native endemic corbiculid bivalve Cyanocyclas limosa and the gastropod Heleobia aff. bertoniana. These are absent in the living assemblages, and both living and death assemblages are dominated by the alien Asiatic corbiculid C. fluminea, which is absent in the fossil assemblage. The fossil assemblage also contains, overall, a higher proportional abundance of relatively thick-shelled species, suggesting a genuine bias against the thinner- and smaller-shelled species. Our results suggest that contemporary environmental changes, such as the introduction of some alien freshwater mollusk species, together with post-burial taphonomic processes, are the main factors leading to the poor fidelity of the fossil assemblage studied. Hence, the taxonomic composition of the Late Pleistocene mollusks from the Touro Passo Formation probably would show greater similarity to present-day assemblages wherever the mollusk biodiversity is not disturbed by human activities.

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Objectives: To verify prostate cancer prevalence in non-symptomatic men between 50 and 70 years old as well as cancer characteristics. Material and Methods: 2815 non-symptomatic men had total PSA and digital rectal examination performed between March 1998 and April 1998. Racial distribution was: 2331 Caucasians (83.9%), 373 Blacks (13.4%) and 75 Asiatic (2.7%). PSA was normal in 2554 (91.4%), 4 to 10 in 177 (6.3%) and greater than 10 in 64 (2.3%). DRE was normal in 2419 (86.3%), suspicious in 347 (12.4%) and characteristic for cancer in 37 (1.3%). Men with abnormal DRE and/or PSA had transrectal prostate biopsy indicated. Results: 461 biopsies were done and 78 tumors was detected (prevalence = 2.8%). Prevalence was progressively higher with age (p < 0.001), PSA level (p < 0.0001) and DRE findings (p = 0.0216). Cancer prevalence in Blacks was 1.65 times higher than in Caucasians (p > 0.05) and 94.9% of detected tumors were moderately or poorly differentiated. Sensibility, specificity, positive predictive value, negative predictive value and total accuracy for PSA were respectively: 66.6%; 89.7%; 51.7%; 94.2% and 86.5%. For DRE, the respective values were: 49.1%; 79.4%; 50.9%; 78.3% and 70.3%. Conclusions: prostate cancer prevalence in the studied population (2.8%) was similar to that of other countries populations. Cancer prevalence in blacks was 1.65 times higher than in Caucasians (difference was not statistically significant). Cancer prevalence becomes higher with aging. The association of DRE and PSA is of paramount importance for cancer diagnosis. The great majority of detected tumors (94.9%) was moderately and poorly differentiated. Brazil probably needs regional studies to better characterize prostate cancer epidemiology due to population heterogeneity.

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We present a molecular phylogenetic analysis of caenophidian (advanced) snakes using sequences from two mitochondrial genes (12S and 16S rRNA) and one nuclear (c-mos) gene (1681 total base pairs), and with 131 terminal taxa sampled from throughout all major caenophidian lineages but focussing on Neotropical xenodontines. Direct optimization parsimony analysis resulted in a well-resolved phylogenetic tree, which corroborates some clades identified in previous analyses and suggests new hypotheses for the composition and relationships of others. The major salient points of our analysis are: (1) placement of Acrochordus, Xenodermatids, and Pareatids as successive outgroups to all remaining caenophidians (including viperids, elapids, atractaspidids, and all other colubrid groups); (2) within the latter group, viperids and homalopsids are sucessive sister clades to all remaining snakes; (3) the following monophyletic clades within crown group caenophidians: Afro-Asian psammophiids (including Mimophis from Madagascar), Elapidae (including hydrophiines but excluding Homoroselaps), Pseudoxyrhophiinae, Colubrinae, Natricinae, Dipsadinae, and Xenodontinae. Homoroselaps is associated with atractaspidids. Our analysis suggests some taxonomic changes within xenodontines, including new taxonomy for Alsophis elegans, Liophis amarali, and further taxonomic changes within Xenodontini and the West Indian radiation of xenodontines. Based on our molecular analysis, we present a revised classification for caenophidians and provide morphological diagnoses for many of the included clades; we also highlight groups where much more work is needed. We name as new two higher taxonomic clades within Caenophidia, one new subfamily within Dipsadidae, and, within Xenodontinae five new tribes, six new genera and two resurrected genera. We synonymize Xenoxybelis and Pseudablabes with Philodryas; Erythrolamprus with Liophis; and Lystrophis and Waglerophis with Xenodon.

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Introduction. Osteosarcomas are highly malignant bone-forming neoplasms that account for about 20% of all sarcomas. In light of their aggressive behavior, early diagnosis is crucial for determining adequate treatment. Dental professionals may be the first to detect jaw osteosarcomas in their initial stages. The aim of this case report is to draw attention to the possibility of diagnosing this tumor based on clinical, radiographical and cytological characteristics before confirmation by histology. Case presentation. A 24-year-old Afro-Brazilian man presented with swelling and pain on the left side of the mandible in the region of the third molar (tooth 38). Radiography showed a poorly delimited intraosseous lesion with radiolucent and radiopaque areas. The cytological aspects were consistent with the diagnosis of osteosarcoma, which was confirmed by biopsy. Conclusion. Imprint cytology was found to be a reliable, rapid and easy complementary examination. An early diagnosis of osteosarcoma of the jaw is fundamental to the early determination of an adequate treatment. © 2009 Cabral et al; licensee BioMed Central Ltd.

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Incluye Bibliografía