Gramsci e Thompson: o “bom senso” da “consciência de classe” trabalhadora

A idéia central aqui é estabelecer uma confluência teórica entre as denominações “bom senso” e “consciência de classe”, respectivamente de Gramsci e de Thompson, visando, entre outras coisas, elencar alguns pontos de similitude e de incongruência entre as duas conceituações. De um lado, no universo gramsciano, emerge a idéia de que o “bom senso” é uma parte mais elaborada (crítica) de entendimento do mundo, que se diferencia do “senso comum”, e que não é exclusivo de uma classe ou de outra, assim como, não é reflexo da falsa ou da verdadeira consciência. O agir/pensar com “bom senso” é uma forma de fazer filosofia e isso é factível a todos os indivíduos, basta se constituir uma ideologia “orgânica” para tal, esse seria o grande passo da “filosofia da práxis”, que pode conduzir à transformação política e social. De outro lado, do thompsiano, tal conceituação (consciência de classe) tem um significado que emerge diretamente da experiência vivida dos agentes sociais (dos indivíduos), dos trabalhadores, que em contato com vivências no mundo, estruturam sua consciência (digamos experiência pensada), baseando-se tanto em elementos tradicionais (historicamente constituídos) quanto em elementos inovadores advindos do próprio agir coletivo dos trabalhadores ou do próprio “fazer” da classe operária

Diffractive Dissociation In The Interacting Gluon Model

We have extended the Interacting Gluon Model (IGM) to calculate diffractive mass spectra generated in hadronic collisions. We show that it is possible to treat both diffractive and non-diffractive events on the same footing, in terms of gluon-gluon collisions. A systematic analysis of available data is performed. The energy dependence of diffractive mass spectra is addressed. They show a moderate narrowing at increasing energies. Predictions for LHC energies are presented.Comment: 12 pages, latex, 14 figures (PostScript Files included); accepted for publication in Phys. Rev. D (Feb.97

Leading nucleon and inelasticity in hadron-nucleus interactions

We present in this paper a calculation of the average proton-nucleus ine- lasticity. Using an Iterative Leading Particle Model and the Glauber model, we relate the leading particle distribution in nucleon-nucleus interactions with the respective one in nucleon-proton collisions. To describe the leading particle distribution in nucleon-proton collisions, we use the Regge-Mueller formalism. To appear in Journal of Physics G.Comment: 11 pages, 2 figure

Estimating the inelasticity with the information theory approach

Using the information theory approach, in both its extensive and nonextensive versions, we estimate the inelasticity parameter $K$ of hadronic reactions together with its distribution and energy dependence from $p\bar{p}$ and $pp$ data. We find that the inelasticity remains essentially constant in energy except for a variation around $K\sim 0.5$, as was originally expected.Comment: 14 pages, 8 figures. Misprints correcte

Differential modulation of cancellous and cortical distal femur by fructose and natural mineral-rich water consumption in ovariectomized female sprague dawley rats

Bone mineral density (BMD) and microstructure depend on estrogens and diet. We assessed the impact of natural mineral-rich water ingestion on distal femur of fructose-fed estrogen-deficient female Sprague Dawley rats. Ovariectomized rats drank tap or mineral-rich waters, with or without 10%-fructose, for 10 weeks. A sham-operated group drinking tap water was included (n = 6/group). Cancellous and cortical bone compartments were analyzed by microcomputed tomography. Circulating bone metabolism markers were measured by enzyme immunoassay/enzyme-linked immunosorbent assay or multiplex bead assay. Ovariectomy significantly worsened cancellous but not cortical bone, significantly increased circulating degradation products from C-terminal telopeptides of type I collagen and receptor activator of nuclear factor-kappaB ligand (RANKL), and significantly decreased circulating osteoprotegerin and osteoprotegerin/RANKL ratio. In ovariectomized rats, in cancellous bone, significant water effect was observed for all microstructural properties, except for the degree of anisotropy, and BMD (neither a significant fructose effect nor a significant interaction between water and fructose ingestion effects were observed). In cortical bone, it was observed a significant (a) water effect for medullary volume and cortical endosteal perimeter; (b) fructose effect for cortical thickness, medullary volume, cross-sectional thickness and cortical endosteal and periosteal perimeters; and (c) interaction effect for mean eccentricity. In blood, significant fructose and interaction effects were found for osteoprotegerin (no significant water effect was seen). For the first time in ovariectomized rats, the positive modulation of cortical but not of cancellous bone by fructose ingestion and of both bone locations by natural mineral-rich water ingestion is described.This work was supported by FEDER—Fundo Europeu de Desenvolvimento Regional (through NORTE 2020 Programa Operacional Regional do Norte—NORTE-01-0145-FEDER-000012), Unicer Bebidas, S.A., Portugal and by FCT—Fundação para a Ciência e Tecnologia (SFRH/BDE/33798/2009 to CP; SFRH/BD/71149/2010 to EP; SFRH/BD/79716/2011 to NS and UID/BIM/04293/2013 to Instituto de Investigação e Inovação em Saúde (Projeto Estratégico)). When considering the funding by Unicer Bebidas, S.A., it should be mentioned that the study here presented was developed, in its full extent, both in scientific terms and research equipment conditions, independently of the beverage company

Desempenho de cultivares de sorgo sacarino em duas épocas de plantio no norte de Minas Gerais visando a produção de etanol.

Este trabalho avaliou o desempenho de 25 cultivares de sorgo sacarino desenvolvidos pelo programa de melhoramento do Centro Nacional de Pesquisa Milho e Sorgo (CNPMS) da Embrapa em Sete Lagoas/MG em duas épocas de cultivo, na seca (outono) e nas águas (verão). Os experimentos foram conduzidos na fazenda experimental do CNPMS - Embrapa, em Janaúba-MG. As características avaliadas foram: Produção de Massa Verde, Sólidos Solúveis Totais, Extração de Caldo, Altura de Plantas, Peso de Panícula e Florescimento. As análises estatísticas foram constituídas por análise conjunta dos ambientes, aplicou-7se o teste F e o teste de Scott-Knott (1974), por meio do programa Sisvar. Os resultados evidenciaram qualidade e potencialidade dos cultivares experimentais. As variedades CMSXS646, CMSXS629, BR507, CMSXS634, CMSXS631, CMSXS630, CMSXS639, CMSXS643, CMSXS647 e CMSXS642 apresentam-se com maior potencial agroindustrial para a região Norte de Minas Gerais. O sorgo sacarino apresenta-se como uma matéria prima bastante promissora para a produção de etanol

Diffractive Contribution to the Elasticity and the Nucleonic Flux in the Atmosphere

We calculate the average elasticity considering non-diffractive and single diffractive interactions and perform an analysis of the cosmic-ray flux by means of an analytical solution for the nucleonic diffusion equation. We show that the diffractive contribution is important for the adequate description of the nucleonic and hadronic fluxes in the atmosphere.Comment: 10 pages, latex, 2 figures (uuencoded PostScript

The J/ψDDJ/\psi D D Vertex in QCD Sum Rules

The $J/\psi D D$ form factor is evaluated in a QCD sum rule calculation for both $D$ and $J/\psi$ off-shell mesons. We study the double Borel sum rule for the three point function of two pseudoscalar and one vector meson current. We find that the momentum dependence of the form factors is different if the $D$ or the $J/\psi$ meson is off-shell, but they lead to the same coupling constant in the $J/\psi D D$ vertex.Comment: 11 pages, Latex, 4 eps figure