BRS - Urubuquara: cultivar de feijão-caupi para a região Bragantina, PA.

Há uma grande demanda por novas cultivares de feijão-caupi na região Bragantina do Estado do Pará. Para atender essa demanda, foi realizada uma seleção na cultivar BR3 Tracuateua, que vem sendo cultivada na região há mais de 20 anos. Foi usado o método da seleção de planta individual com teste de progênie. Os critérios para seleção foram boa qualidade de grão, boa sanidade, e arquitetura e bom carrego. Em setembro de 2000, foram selecionadas 274 plantas individuais. Nos anos de 2000 e 2001, as progênies foram avaliadas, respectivamente em dois ensaios, ambos no delineamento de blocos aumentados. Das 274 progênies, foram selecionadas 24. Dessas, 16 foram avaliadas pelos produtores em unidades de observação e nove foram selecionadas. Com essas progênies, foi organizado o ensaio de Valor de Cultivo e Uso - VCU em blocos casualizados com quatro repetições. Foram realizados sete ensaios de VCU no período de 2002 a 2004. Destacaram-se as progênies Urubuquara-113 e Urubuquara-70, lançadas para região Bragantina do Estado do Pará, respectivamente, com os nomes de BRS Milênio e BRS Urubuquara. A cultivar BRS Milênio teve média de produtividade de 1.399,4 kg.ha-1 e a BRS Urubuquara de 1.276,8 kg.ha-1. Ambas são adequadas tanto à agricultura familiar quanto à empresarial e têm grãos que se enquadram na classe branco, subclasse brancão.bitstream/item/27813/1/com.tec.135.pdfDisponível também on-line

Crescimento e variáveis hematológicas de tracajás (Podocnemis unifilis) aos seis e dezoito meses de vida.

HEM011

Investigating human audio-visual object perception with a combination of hypothesis-generating and hypothesis-testing fMRI analysis tools

Primate multisensory object perception involves distributed brain regions. To investigate the network character of these regions of the human brain, we applied data-driven group spatial independent component analysis (ICA) to a functional magnetic resonance imaging (fMRI) data set acquired during a passive audio-visual (AV) experiment with common object stimuli. We labeled three group-level independent component (IC) maps as auditory (A), visual (V), and AV, based on their spatial layouts and activation time courses. The overlap between these IC maps served as definition of a distributed network of multisensory candidate regions including superior temporal, ventral occipito-temporal, posterior parietal and prefrontal regions. During an independent second fMRI experiment, we explicitly tested their involvement in AV integration. Activations in nine out of these twelve regions met the max-criterion (A < AV > V) for multisensory integration. Comparison of this approach with a general linear model-based region-of-interest definition revealed its complementary value for multisensory neuroimaging. In conclusion, we estimated functional networks of uni- and multisensory functional connectivity from one dataset and validated their functional roles in an independent dataset. These findings demonstrate the particular value of ICA for multisensory neuroimaging research and using independent datasets to test hypotheses generated from a data-driven analysis

Hematologia e bioquímica de tracajá após restrição e realimentação.

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Caracterização físico-química e de compostos funcionais em frutos de pitaya.

A pitaya é uma fruta rústica, pertencente à família Cactaceae, sendo conhecida mundialmente como "Fruta-do-Dragão?. De acordo com a espécie, seus frutos podem apresentar características diversificadas, como formato, presença de espinhos, cor da casca e da polpa, refletindo em alta variabilidade genética (JUNQUEIRA et al., 2007). No Brasil é comum serem encontradas, em estágio nativo no Cerrado e Caatinga, espécies do gênero Selenicereus e Hylocereus, dentre elas a Selenicereus setaceus, popularmente conhecida como pitaya-do-cerrado (JUNQUEIRA et al., 2002). Atualmente, as espécies de pitaya mais cultivadas no mundo são a pitaya de casca vermelha (Hylocereus undatus (Haw.) Britton e Rose) e a de casca amarela (Selenicereus megalanthus (K. Schum ex Vaupel) (MIZRAHI et al., 1997; NERD et al., 2002). Devido ao seu sabor doce e suave, de polpa firme e repleta de sementes e aliado às suas propriedades nutricionais e funcionais, faz da pitaya um produto de grande aceitação nos mercados consumidores, o que têm despertado o interesse nos produtores. O alto valor pago pelo quilo da fruta, que pode variar de dez a sessenta reais, dependendo da época do ano e da demanda, também constitui um grande atrativo para o plantio dessa frutífera (JUNQUEIRA et al., 2002; SOUZA, 2010). Devido à escassez de estudos sobre a pitaya, torna-se fundamental a ampliação do conhecimento acerca dessa espécie, viabilizando a produção de mudas e fornecendo subsídios para a seleção de materiais promissores. Neste trabalho, objetivou-se realizar a caracterização físico-química e de compostos funcionais nas espécies de pitaya Hylocereus costaricencis e Hylocereus undatus

Lycopene from two food sources does not affect antioxidant or cholesterol status of middle-aged adults

BACKGROUND: Epidemiological studies have reported associations between reduced cardiovascular disease and diets rich in tomato and/or lycopene. Intervention studies have shown that lycopene-containing foods may reduce cholesterol levels and lipid peroxidation, factors implicated in the initiation of cardiovascular disease. The objective of this study was to determine whether consumption of lycopene rich foods conferred cardiovascular protection to middle-aged adults as indicated by plasma lipid concentrations and measures of ex vivo antioxidants. METHODS: Ten healthy men and women consumed a low lycopene diet with no added lycopene (control treatment) or supplemented with watermelon or tomato juice each containing 20 mg lycopene. Subjects consumed each treatment for three weeks in a crossover design. Plasma, collected weekly was analyzed for total cholesterol, high density lipoprotein cholesterol (HDL-C) and triglyceride concentrations and for the antioxidant biomarkers of malondialdehyde formation products (MDA), plasma glutathione peroxidase (GPX) and ferric reducing ability of plasma (FRAP). Data were analyzed using Proc Mixed Procedure and associations between antioxidant and lipid measures were identified by Pearson's product moment correlation analysis. RESULTS: Compared to the control diet, the lycopene-containing foods did not affect plasma lipid concentrations or antioxidant biomarkers. Women had higher total cholesterol, HDL-C and triglyceride concentrations than did the men. Total cholesterol was positively correlated to MDA and FRAP while HDL-C was positively correlated to MDA and GPX. GPX was negatively correlated to triglyceride concentration. CONCLUSIONS: The inclusion of watermelon or tomato juice containing 20 mg lycopene did not affect plasma lipid concentrations or antioxidant status of healthy subjects. However, plasma cholesterol levels impacted the results of MDA and FRAP antioxidant tests

Can stigma become a resource? The mobilisation of aesthetic–corporal capital by female immigrant entrepreneurs from Brazil

The proportion and visibility of Brazilian women and particularly the specific images of Brazil and Brazilians in the Portuguese imaginary have contributed to the construction of new versions of stigma and stereotypes surrounding them. Mainstream images of Brazilian women have incorporated prejudices about the sensuality of Creole women who are reminiscent of the Portuguese colonial imaginary. Starting from this stigmatised image, we show how Brazilian women entrepreneurs in the ‘beauty’ business filière reinterpret and mobilise this perceived negative image, transforming it into an added value associated with an ‘aesthetic’ Brazilian body culture. This idea of ‘body’ aesthetics becomes a business resource transformed into aesthetic– corporal capital, a key component of the Brazilian beauty business filière. Empirically, this research is based on qualitative elements, in particular 25 interviews with Brazilian women entrepreneurs of the beauty filière working in Portugal, collected for the project BELTS-W (Brazilian Entrepreneurial Links and Transnational Strategies – Women).This article is an output of the Foundation for Science and Technology (FCT) sponsored project PIHM/GC/0111/2008 and Brazilian Entrepreneurial Links and Transnational Strategies-Women (BELTS-W)

The hTERT Promoter Enhances the Antitumor Activity of an Oncolytic Adenovirus under a Hypoxic Microenvironment

Hypoxia is a microenvironmental factor that contributes to the invasion, progression and metastasis of tumor cells. Hypoxic tumor cells often show more resistance to conventional chemoradiotherapy than normoxic tumor cells, suggesting the requirement of novel antitumor therapies to efficiently eliminate the hypoxic tumor cells. We previously generated a tumor-specific replication-competent oncolytic adenovirus (OBP-301: Telomelysin), in which the human telomerase reverse transcriptase (hTERT) promoter drives viral E1 expression. Since the promoter activity of the hTERT gene has been shown to be upregulated by hypoxia, we hypothesized that, under hypoxic conditions, the antitumor effect of OBP-301 with the hTERT promoter would be more efficient than that of the wild-type adenovirus 5 (Ad5). In this study, we investigated the antitumor effects of OBP-301 and Ad5 against human cancer cells under a normoxic (20% oxygen) or a hypoxic (1% oxygen) condition. Hypoxic condition induced nuclear accumulation of the hypoxia-inducible factor-1α and upregulation of hTERT promoter activity in human cancer cells. The cytopathic activity of OBP-301 was significantly higher than that of Ad5 under hypoxic condition. Consistent with their cytopathic activity, the replication of OBP-301 was significantly higher than that of Ad5 under the hypoxic condition. OBP-301-mediated E1A was expressed within hypoxic areas of human xenograft tumors in mice. These results suggest that the cytopathic activity of OBP-301 against hypoxic tumor cells is mediated through hypoxia-mediated activation of the hTERT promoter. Regulation of oncolytic adenoviruses by the hTERT promoter is a promising antitumor strategy, not only for induction of tumor-specific oncolysis, but also for efficient elimination of hypoxic tumor cells