1,102 research outputs found
Planting time for maximization of yield of vinegar plant calyx (Hibiscus sabdariffa L.)
Objetivou-se avaliar a produtividade de cĂĄlices de Hibiscus sabdariffa L., planta medicinal, em quatro Ă©pocas de plantio em Lavras M.G. Os tratamentos foram quatro Ă©pocas de plantio (18 de outubro; 15 de novembro; 18 de dezembro de 2001 e 15 de janeiro de 2002) e realizada uma colheita quando praticamente nĂŁo existiam cĂĄlices em desenvolvimento, quase no final do ciclo da planta. Foram considerados os nĂșmeros de cĂĄlices por planta, as fitomassas frescas e secas dos cĂĄlices e a qualidade. Concluiu-se que a Ă©poca de plantio influenciou o rendimento por planta e as fitomassas frescas e secas dos cĂĄlices, diferindo entre si pelo teste de Tukey a 5%. No plantio de outubro, houve maior rendimento (2.522 kg/ha), com produção de 5,24 vezes a mais em relação ao plantio do mĂȘs de janeiro (481 kg/ha). Os plantios nos meses de novembro e dezembro tiveram produçÔes de 1.695 e 1.093 kg.ha-1 de cĂĄlices secos, respectivamente, e em relação ao mĂȘs de janeiro, a produção foi 3,52 e 2,27 vezes a mais.Deve-se realizar a colheita assim que os cĂĄlices estiverem maduros, a fim de preservar a qualidade
A voz dos bandos: colectivos de justiça e ritos da palavra portuguesa em Timor Leste colonial
Este artigo examina as relaçÔes entre o discurso da justiça e a prĂĄtica do ritual nos bandos do governo colonial portuguĂȘs em Timor Leste, entre a segunda metade do sĂ©culo XIX e as primeiras dĂ©cadas do sĂ©culo XX. Os bandos consistiam em ordens e instruçÔes de comando emanadas pelo governador portuguĂȘs em DĂli, e comunicadas de forma cerimonial por oficiais Ă s populaçÔes dos diversos reinos timorenses dispersos pelo paĂs. Bandos eram um instrumento por excelĂȘncia de governação colonial dos assuntos indĂgenas, servindo para arbitrar conflitos, punir transgressĂ”es e, em geral, instituir realidades no mundo timorense. Contudo, esta instituição assumiu igualmente uma singular expressĂŁo nos usos timorenses, servindo bandos para comunicar tambĂ©m as ordens de autoridades tradicionais, os liurais. O artigo acompanha as variaçÔes coloniais e indĂgenas que os bandos adquiriram em Timor Leste, conceptualizando-os enquanto colectivos de justiça. Ao considerar assim os bandos como colectivos â formaçÔes heterogĂ©neas em que elementos linguĂsticos e nĂŁo linguĂsticos se combinam na produção de efeitos de poder sobre as populaçÔes â o artigo propĂ”e uma via conceptual alternativa Ă s perspectivas linguĂsticas e literĂĄrias de anĂĄlise do discurso colonial
Reliability of race assessment based on the race of the ascendants: a cross-sectional study
BACKGROUND: Race is commonly described in epidemiological surveys based on phenotypic characteristics. Training of interviewers to identify race is time-consuming and self identification of race might be difficult to interpret. The aim of this study was to determine the agreement between race definition based on the number of ascendants with black skin colour, with the self-assessment and observer's assessment of the skin colour. METHODS: In a cross-sectional study of 50 women aged 14 years or older, from an outpatient clinic of an University affiliated hospital, race was assessed through observation and the self-assignment of the colour of skin and by the number of black ascendants including parents and grandparents. Reliability was measured through Kappa coefficient. RESULTS: Agreement beyond chance between self-assigned and observed skin colour was excellent for white (0.75 95% CI 0.72â0.78) and black women (0.89 95% CI 0.71â0.79), but only good for participants with mixed colour (0.61 95% CI 0.58â0.64), resulting in a global kappa of 0.75 (95% CI 0.71â0.79). However, only a good agreement for mixed women was obtained. The presence of 3 or more black ascendants was highly associated with observed and self-assessed black skin colour. Most women self-assigned or observed as white had no black ascendants. CONCLUSIONS: The assessment of race based on the race of ascendants showed reasonable agreement with the ascertainment done by trained interviewers and with the self-report of race. This method may be considered for evaluation of race in epidemiological surveys, since it is less time-consuming than the evaluation by interviewers
ATLANTIC â PRIMATES : a dataset of communities and occurrences of primates in the Atlantic Forests of South America
Primates play an important role in ecosystem functioning and offer critical insights into human evolution, biology, behavior, and emerging infectious diseases. There are 26 primate species in the Atlantic Forests of South America, 19 of them endemic. We compiled a dataset of 5,472 georeferenced locations of 26 native and 1 introduced primate species, as hybrids in the genera Callithrix and Alouatta. The dataset includes 700 primate communities, 8,121 single species occurrences and 714 estimates of primate population sizes, covering most natural forest types of the tropical and subtropical Atlantic Forest of Brazil, Paraguay and Argentina and some other biomes. On average, primate communities of the Atlantic Forest harbor 2 ± 1 species (range = 1â6). However, about 40% of primate communities contain only one species. Alouatta guariba (N = 2,188 records) and Sapajus nigritus (N = 1,127) were the species with the most records. Callicebus barbarabrownae (N = 35), Leontopithecus caissara (N = 38), and Sapajus libidinosus (N = 41) were the species with the least records. Recorded primate densities varied from 0.004 individuals/km2 (Alouatta guariba at Fragmento do Bugre, ParanĂĄ, Brazil) to 400 individuals/km2 (Alouatta caraya in Santiago, Rio Grande do Sul, Brazil). Our dataset reflects disparity between the numerous primate census conducted in the Atlantic Forest, in contrast to the scarcity of estimates of population sizes and densities. With these data, researchers can develop different macroecological and regional level studies, focusing on communities, populations, species coâoccurrence and distribution patterns. Moreover, the data can also be used to assess the consequences of fragmentation, defaunation, and disease outbreaks on different ecological processes, such as trophic cascades, species invasion or extinction, and community dynamics. There are no copyright restrictions. Please cite this Data Paper when the data are used in publications. We also request that researchers and teachers inform us of how they are using the data.Fil: Culot, Laurence. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Pereira, Lucas Augusto. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Agostini, Ilaria. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Nordeste. Instituto de BiologĂa Subtropical. Universidad Nacional de Misiones. Instituto de BiologĂa Subtropical; Argentina. Centro de Investigaciones del Bosque AtlĂĄntico; ArgentinaFil: de Almeida, Marco AntĂŽnio Barreto. Pontificia Universidade CatĂłlica do Rio Grande do Sul; BrasilFil: Alves, Rafael Souza Cruz. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Baldovino, MarĂa Celia. Centro de Investigaciones del Bosque AtlĂĄntico; Argentina. Universidad Nacional de TucumĂĄn. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto Miguel Lillo; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - TucumĂĄn; ArgentinaFil: Di Bitetti, Mario Santiago. Centro de Investigaciones del Bosque AtlĂĄntico; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Nordeste. Instituto de BiologĂa Subtropical. Instituto de BiologĂa Subtropical - Nodo Puerto IguazĂș | Universidad Nacional de Misiones. Instituto de BiologĂa Subtropical. Instituto de BiologĂa Subtropical - Nodo Puerto IguazĂș; ArgentinaFil: Oklander, Luciana InĂ©s. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Nordeste. Instituto de BiologĂa Subtropical. Instituto de BiologĂa Subtropical - Nodo Puerto IguazĂș | Universidad Nacional de Misiones. Instituto de BiologĂa Subtropical. Instituto de BiologĂa Subtropical - Nodo Puerto IguazĂș; ArgentinaFil: Holzmann, Ingrid. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Salta. Instituto de Bio y Geociencias del NOA. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Museo de Ciencias Naturales. Instituto de Bio y Geociencias del NOA; ArgentinaFil: Dums, Marcos. RUMO S.A. Licenciamento Ambiental; BrasilFil: Lombardi, Pryscilla Moura. RUMO S.A. Licenciamento Ambiental; BrasilFil: Bonikowski, Renata Twardowsky Ramalho. RUMO S.A. Licenciamento Ambiental; BrasilFil: Age, StĂ©fani Gabrieli. RUMO S.A. Licenciamento Ambiental; BrasilFil: Souza Alves, JoĂŁo Pedro. Universidade Federal de Pernambuco; BrasilFil: Chagas, Renata. Universidade Federal da ParaĂba; BrasilFil: da Cunha, RogĂ©rio Grassetto Teixeira. Universidade Federal de Alfenas; BrasilFil: Valença Montenegro, Monica Mafra. Centro Nacional de Pesquisa e Conservaçao de Primates Brasileiros; BrasilFil: Ludwig, Gabriela. Centro Nacional de Pesquisa e Conservaçao de Primates Brasileiros; BrasilFil: Jerusalinsky, Leandro. Centro Nacional de Pesquisa e Conservaçao de Primates Brasileiros; BrasilFil: Buss, Gerson. Centro Nacional de Pesquisa e Conservaçao de Primates Brasileiros; BrasilFil: de Azevedo, Renata Bocorny. Centro Nacional de Pesquisa e Conservaçao de Primates Brasileiros; BrasilFil: Filho, Roberio Freire. Universidade Federal de Pernambuco; BrasilFil: Bufalo, Felipe. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Milhe, Louis. UniversitĂ© D'Avignon et des Pays du Vaucluse; FranciaFil: Santos, Mayara Mulato dos. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Sepulvida, RaĂssa. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Ferraz, Daniel da Silva. Universidade do Estado de Minas Gerais; BrasilFil: Faria, Michel Barros. Universidade do Estado de Minas Gerais; BrasilFil: Ribeiro, Milton Cezar. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Galetti, Mauro. Universidade Estadual Paulista Julio de Mesquita Filho; Brasi
Mg2FeH6-based nanocomposites with high capacity of hydrogen storage processed by reactive milling
Influence of diameter measuring height on the adjustment of volume and biomass equations of cerrado in minas gerais
A novel vasorelaxant lectin purified from seeds of Clathrotropis nitida: Partial characterization and immobilization in chitosan beads
A novel lectin from seeds of Clathrotropis nitida (CNA) was purified and characterized. CNA is a glycoprotein containing approximately 3.3% carbohydrates in its structure. CNA promoted intense agglutination of rabbit erythrocytes, which was inhibited by galactosides and porcine stomach mucin (PSM). The lectin maintained its hemagglutinating activity after incubation in a wide range of temperatures (30-60 °C) and pH (6.0-7.0), and its binding activity was dependent on divalent cations (Ca+2 and Mg+2). SDS-PAGE showed an electrophoretic profile consisting of a single band of 28 kDa, as confirmed by electrospray ionization mass spectrometry, which indicated an average molecular mass of 27,406 ± 2 Da and the possible presence of isoforms and glycoforms. In addition, CNA exhibited no toxicity to Artemia sp. nauplii and elicited reversible and dose-dependent vasorelaxation in precontracted aortic rings. CNA was successfully immobilized on chitosan beads and was able to capture PSM in solution. This study demonstrated that CNA is a lectin that has potential as a biotechnological tool in glycomics and glycoproteomics applications. © 2015 Elsevier Inc
Effects of plastic stenting in commom bile duct of rats: a quantitative reaction analysis using collagen and elastin morphometry
Structure and floristic relationships between Cerrado sensu stricto sites on two types of substrate in northern Cerrado, Brazil
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