Bourgin-Yang versions of the Borsuk-Ulam theorem for pp-toral groups

Let $V$ and $W$ be orthogonal representations of $G$ with $V^G= W^G=\{0\}$. Let $S(V )$ be the sphere of $V$ and $f : S(V ) \to W$ be a $G$-equivariant mapping. We give an estimate for the dimension of the set $Z_f=f^{-1}\{0\}$ in terms of $\dim V$ and $\dim W$, if $G$ is the torus $\mathbb T^k$, or the $p$-torus $\mathbb Z_p^k$. This extends the classical Bourgin-Yang theorem onto this class of groups. Finally, we show that for any $p$-toral group $G$ and a $G$-map $f:S(V) \to W$, with $\dim V=\infty$ and $\dim W<\infty$, we have $\dim Z_f= \infty$.Comment: Major revisio

Processamento mínimo de alface crespa.

bitstream/CNPH-2009/33244/1/cot_25.pd

Análise de perigos e pontos críticos de controle (APPCC) manual específico para a produção integrada de tomate industrial.

bitstream/CNPH-2010/36484/1/ct-74.pd

Carbono e nitrogênio da biomassa e atividade microbiana em um solo cultivado com arroz irrigado orgânico e manejado com diferentes adubos verdes.

bitstream/item/33967/1/documento-216.pd

The influence of family origin and socioeconomic variables on land use and deforestation of family lots in the Brazilian Amazon basin.

This article examines the influence of eleven independent variables (family origin, time of lot occupation, couple?s schooling, generational index, gender index, size of lot, land title, annual family income, access to rural credit, access to transportation to market the production, and access to electricity to benefit the production) on land use and deforestation of 2,555 family lots selected by the Brazilian federal policy denominated ?Social and Environmental Development of Rural Family Production Program? (Proambiente). The paper discusses six independent variables that demonstrated significant statistical influence on the deforestation of legal reserves of family lots: family origin, time of lot occupation, size of lot, annual family income, access to rural credit, access to transportation and access to electricity. This paper aims to provide data to the literature about land use and to collaborate with the improvement of governmental programs those combines agroecological transition and supply of environmental services to the global society

An unpublished interview with Paulo Freire: radical pedagogy & social transformation

Pulling together the inedited works by Paulo Freire in the XXI century shows us how his works are up-to-date with current issues in the field. Most of his works have been disseminated all over the World, as those of the greatest educator of all times; however, his simplicity and outspoken voice is unique and cannot be reproduce in a simple manner. This is possibly why many writers use his citations, instead of paraphrasing his writings. Therefore, this paper represents another attempt to focus on his own voice and perspective on some of the questions raised by students three decades ago, that had never reach a broad audience but are nevertheless still in the minds of many students who are today interested in his work. The paper presents a short unpublished interview with Freire in 1988, when he talks about theoretical affiliation, critiques and the objectives of his works. In a conversation format the interview is a re-encounter between Paulo Freire and his former student Carmen de Mattos

Protocolo de avaliação da qualidade física e química de cebola.

Neste protocolo, são relatadas as informações necessárias para a avaliação da qualidade química e física em cebola, baseadas em adaptações e modificações realizadas no laboratório de pós-colheita da Embrapa Hortaliaças.bitstream/item/72191/1/cot-831.pd

Manuseio pós-colheita de berinjela.

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