Germinação e comportamento das espécies Bagassa guianensis, Copaifera multijuga, Hymenaea courbaril, Dipteryx odorata e Tabebuia serratifolia, em Floresta plantada na Amazônia Oriental brasileira.

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Constraining nonstandard neutrino-quark interactions with solar, reactor and accelerator data

We present a reanalysis of nonstandard neutrino-down-quark interactions of electron and tau neutrinos using solar, reactor and accelerator data. In addition updating the analysis by including new solar data from SNO phase III and Borexino, as well as new KamLAND data and solar fluxes, a key role is played in our analysis by the combination of these results with the CHARM data. The latter allows us to better constrain the axial and axial-vector electron and tau-neutrino nonstandard interaction parameters characterizing the deviations from the Standard Model predictions.Comment: 11 pages, 6 figures, 2 tables, typo corrected in Figure 2, version published in Phys. Rev.

Finding the set of k-additive dominating measures viewed as a flow problem

n this paper we deal with the problem of obtaining the set of k-additive measures dominating a fuzzy measure. This problem extends the problem of deriving the set of probabilities dominating a fuzzy measure, an important problem appearing in Decision Making and Game Theory. The solution proposed in the paper follows the line developed by Chateauneuf and Jaffray for dominating probabilities and continued by Miranda et al. for dominating k-additive belief functions. Here, we address the general case transforming the problem into a similar one such that the involved set functions have non-negative Möbius transform; this simplifies the problem and allows a result similar to the one developed for belief functions. Although the set obtained is very large, we show that the conditions cannot be sharpened. On the other hand, we also show that it is possible to define a more restrictive subset, providing a more natural extension of the result for probabilities, such that it is possible to derive any k-additive dominating measure from it

Update to the Neutrino-Electron Scattering in Left-Right Symmetric Models

In a previous paper we study the neutrino-electron scattering in the framework of a left-right symmetric model (LRSM). Constraints on the LRSM parameters $M_{Z_{2}}$ and $\phi$ were obtained. Based on new measurements we present an update to these constraints and also include in the calculation the radiative corrections.Comment: LaTex file, 4 pages and 3 uuencoded postscript figure

Effect of ozone treatment in wheat quality of whole grain wheat flour.

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Quintais agroflorestais e segurança alimentar de agricultores familiares no Baixo Irituia, Nordeste paraense.

Os quintais agroflorestais são compostos de uma variedade de espécies vegetais e de pequenos animais, disponibilizando produtos que contribuem para uma dieta diversificada e saudável. O objetivo da pesquisa foi avaliar a contribuição dos quintais agroflorestais para a segurança alimentar em unidades agrícolas familiares no Baixo Irituia, Nordeste Paraense. Através das técnicas de entrevista estruturada e semi-estruturada, turnê guiada, observação direta e recall 24 horas foram realizados um levantamento das espécies (vegetais e animais) nos 18 quintais agroflorestais e a verificação dos alimentos consumidos pelos 30 agricultores familiares, tanto daqueles produzidos nos quintais agroflorestais ou não, quanto daqueles de origem industrializadas. Das 130 espécies, 70 foram plantas alimentícias (das quais 44 frutíferas, 21 hortaliças e 5 de lavoura branca); 31 medicinais; 17 madeireiras; 7 ornamentais e 5 animais alimentícios. Das 70 alimentícias, 94% foram consumidas, especialmente as frutíferas (59%), seguidas das hortaliças (30%) e das de lavoura branca (11%). Os agricultores com quintais agroflorestais tiveram acesso a uma melhor condição nutricional ao consumirem maior quantidade e variedade de alimentos oriundos dos quintais, especialmente as frutas. Produtos industrializados como mortadela, suco artificial e galinha de granja foram consumidos em porcentagens maiores pelos agricultores nos espaços sem quintais agroflorestais. Através da aplicação do teste Student, mostrou-se diferença estatisticamente significativa nas médias da quantidade de alimentos consumidos dos quintais e os industrializados pelos dois grupos de agricultores familiares. Os quintais agroflorestais foram importantes para introduzir variações na dieta alimentar, pois contribuíram na diversificação e complementação alimentar.Editores técnicos: Roberto Porro, Milton Kanashiro, Maria do Socorro Gonçalves Ferreira, Leila Sobral Sampaio e Gladys Ferreira de Sousa

Rotating Hele-Shaw cells with ferrofluids

We investigate the flow of two immiscible, viscous fluids in a rotating Hele-Shaw cell, when one of the fluids is a ferrofluid and an external magnetic field is applied. The interplay between centrifugal and magnetic forces in determining the instability of the fluid-fluid interface is analyzed. The linear stability analysis of the problem shows that a non-uniform, azimuthal magnetic field, applied tangential to the cell, tends to stabilize the interface. We verify that maximum growth rate selection of initial patterns is influenced by the applied field, which tends to decrease the number of interface ripples. We contrast these results with the situation in which a uniform magnetic field is applied normally to the plane defined by the rotating Hele-Shaw cell.Comment: 12 pages, 3 ps figures, RevTe

The continuity of the inversion and the structure of maximal subgroups in countably compact topological semigroups

In this paper we search for conditions on a countably compact (pseudo-compact) topological semigroup under which: (i) each maximal subgroup $H(e)$ in $S$ is a (closed) topological subgroup in $S$; (ii) the Clifford part $H(S)$(i.e. the union of all maximal subgroups) of the semigroup $S$ is a closed subset in $S$; (iii) the inversion $\operatorname{inv}\colon H(S)\to H(S)$ is continuous; and (iv) the projection $\pi\colon H(S)\to E(S)$, $\pi\colon x\longmapsto xx^{-1}$, onto the subset of idempotents $E(S)$ of $S$, is continuous