A importância da negatividade hegeliana para o pensamento dialético de Herbert Marcuse: o legado da filosofia da história

Pós-graduação em Filosofia - FFC

Revolutionaries and bandits: the Villista trajectory in the Mexican Revolution

In the last decades of the 1901 century the Mexican society went through a period of political and economical stability, and relative social tranquility. on contrast, during the revolutionary context various armed movements promoted the disruption of this status quo. In this article, by the analysis of several testimonies, I intend to show some aspects regarding criminality and violence phenomena, during the 1910 and 1920 years on the Northern Mexico.

Revolution and livestock farming in Northern Mexico

Through the analysis of Mexican livestock statistics and Sonora and Chihuahua regional census, this work discusses the condition of livestock farming in Northern Mexico during the first decades of the twentieth century, specially after the Revolution. There is no doubt that during this period, the absolute number of livestock heads diminished throughout Mexico, but "estate depredations" did vary geographically. In Nortehrn Mexico, livestock farming suffered more in Chihuahua than in Sonora, and herd recovery was also faster in Sonora. This analysis also allows us to underscore the role of postrevolutionary elites in rebuilding regional economies during the 1920's.

Histopathology of the tegument of rabbits infested by Rhipicephalus sanguineus (ACARI: IXODIDAE) ticks and exposed to selamectin (active principle of acaricide Revolution®, Pfizer)

Ticks are hematophagous ectoparasites which can transmit several diseases to the host during their feeding process. When ticks mechanically damage the tissue, they eventually induce inflammatory responses on the skin spot where they are fixed. One of the alternatives to control these ectoparasites is the use of chemical substances like selamectin - the active principle of Pfizer's antiparasitic Revolution® - a macrocyclic lactone capable of doing neurotoxic damage to the tick and eventually eliminating infestation in dogs and cats. The purpose of this study was to analyze, using histological and histochemical techniques, the occurrence of morphophysiological alterations in the skin of the host rabbits exposed to selamectin and infested with Rhipicephalus sanguineus (Acari: Ixodidae). Histologically, the exposed and infested rabbits showed a partial and/or total decrease in the stratum corneum and the epithelium decreased in the number of cell layers, consequently reducing the stratification (thinning) and quite pronounced formations of sub-epidermal edemas with consequent disorganization of collagen fibers in the dermal layer's connective tissue. Histochemical tests showed strong periodic acid-Schiff-positive reaction in the hair follicle and some regions of the dermis, besides resynthesis of collagen fibers detected by Mallory's trichrome technique. The obtained results showed that selamectin acts like a toxicant agent when in contact with the skin of the rabbit infested with ticks, inducing morphophysiological alterations in the acute inflammatory process in the animal's tegument. Selamectin is a chemical substance which has a dose-dependent action since higher concentrations cause greater morphophysiological damage in the skin of rabbits. © 2013 Springer-Verlag Berlin Heidelberg.

Morphological alterations of epidermis of rabbits infested by R. sanguineus ticks and exposed to Selamectin (active principle of Pfizer Revolution (R) acaricide): A confocal microscopy study

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

The Occurrence of Autophagic Cell Death in the Tegument of Rabbits Pre-Infested with Rhipicephalus sanguineus and Exposed to Selamectin (Active Principle of Acaricide Pfizer Revolution (R))

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Evaluation of marginal microleakage in Class II cavities: Effect of microhylolrid, flowable, and compactable resins

Objective: the goal of the present study was to evaluate the microleakage on the cementum/dentin and enamel surfaces in Class 11 restorations, using different kinds of resin composite (microhybrid, flowable, and compactable). Method and materials: Forty human caries-free molars were extracted and selected. Eighty Class 11 standardized cavities were made in the cervical wall at the cementoenamel junction (CEJ) and at the mesial and distal surfaces. The teeth were divided into four groups: G1 - adhesive system + microhybrid resin composite Z100; G2 - adhesive system + compactable resin composite Prodigy Condensable; G3 - adhesive system + flowable resin composite Revolution + Z1 00 resin composite; G4 - adhesive system + Revolution fluid resin + compactable resin composite Prodigy Condensable. The adhesive system used in this study was Scotchbond Multi-Purpose Plus. The specimens were thermocycled in baths of 5degreesC and 55degreesC for 1,000 cycles and immersed in 50% silver nitrate solution. The specimens then were sectioned and evaluated on degree of dye penetration. Results: the results were evaluated using the nonparametric Kruskall-Wallis test, which showed a statistically significant difference between groups G1 and G4, G2 and G4, and G3 and G4. Conclusions: None of the materials was able to eliminate the marginal microleakage at the cervical wall; the application of a low-viscosity resin composite combined with a compactable resin composite significantly decreased the microleakage.

Determination of the LC50 of selamectin (active principle of the antiparasitic Revolution (R), Pfizer) applied on engorged female of the tick Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Evaluation of marginal microleakage in Class II cavities: Effect of microhybrid, flowable, and compactable resins

Objective: The goal of the present study was to evaluate the microleakage on the cementum/dentin and enamel surfaces in Class II restorations, using different kinds of resin composite (microhybrid, flowable, and compactable). Method and materials: Forty human caries-free molars were extracted and selected. Eighty Class II standardized cavities were made in the cervical wall at the cementoenamel junction (CEJ) and at the mesial and distal surfaces. The teeth were divided into four groups: G1 - adhesive system + microhybrid resin composite Z100; G2 - adhesive system + compactable resin composite Prodigy Condensable; G3 - adhesive system + flowable resin composite Revolution + Z100 resin composite; G4 - adhesive system + Revolution fluid resin + compactable resin composite Prodigy Condensable. The adhesive system used in this study was Scotchbond Multi-Purpose Plus. The specimens were thermocycled in baths of 5°C and 55°C for 1,000 cycles and immersed in 50% silver nitrate solution. The specimens then were sectioned and evaluated on degree of dye penetration. Results: The results were evaluated using the nonparametric Kruskall-Wallis test, which showed a statistically significant difference between groups G1 and G4, G2 and G4, and G3 and G4. Conclusions: None of the materials was able to eliminate the marginal microleakage at the cervical wall; the application of a low-viscosity resin composite combined with a compactable resin composite significantly decreased the microleakage.

Translating passive revolution in Brazil

This article sets out to examine Antonio Gramsci's use of the concept of passive revolution and thereby 'translate' it to an alternative historical and contemporary context. If we can observe Gramsci as a 'translator' of Lenin, from Russia to Italy, we can also try to 'translate' Gramsci beyond his original circumstances to alternative conditions, hence the aim of translating Gramsci and his category of passive revolution in order to apprehend some aspects of the particularity of bourgeois revolution in Brazil. The thesis is that the theory and condition of passive revolution in Brazil has unfolded as a hybridism of liberal corporatism, which reveals the slow assumption of bourgeois rule as a form of supremacy. Importantly, the role of the military in this long process is also highlighted. © The Author(s) 2012.

Alterações morfofisiológicas do tegumento de coelhos infestados por carrapatos Rhipicephalus sanguineus (Acari: Ixodidae) e expostos à selamectina (princípio ativo do acaricida Revolution®, Pfizer)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Linguagem poética e crescimento urbano-industrial / Poetical language and urban-industrial growth

O impacto do crescimento urbano-industrial sobre a lírica moderna é abordado sob o ângulo das dissonâncias ocorridas entre as representações temáticas e os procedimentos expressivos. Assim se confrontam as “respostas” dos poetas europeus à Revolução Industrial e o surgimento das grandes cidades com as dos modernistas brasileiros de 22 face à industrialização de São Paulo. Nestes, ao contrário dos primeiros, os conflitos instauram-se entre a celebração programática da vida moderna e, num primeiro momento, a impossibilidade de adequação de suas formas de expressão ao registro dessa modernidade. Dessa forma se explicam os desequilíbrios temático-expressivos existentes em Paulicéia Desvairada, bem como as adequações conseguidas por obras posteriores. The impact of urban-industrial growth on modern lyrics is approached from the angle of the dissonances which occurred between the thematic representations and the expressive procedures. Thus, the European poets’ responses to the Industrial Revolution and the emergence of the large cities are confronted with those of the 1922 Brazilian Modernists in relation to the industrialization of São Paulo. In the latter, contrary to what happened with ther former ones, the conflicts take place between the programmatic celebration of modern life and, at first, the impossibility of adequating their form of expressions to the record of said modernity. Thus the thematic-expressive disequilibrium in Paulicéia Desvairada, as well as de adequations obtained in later works are explained.

An Informatics Technical Note on Interaction of DNA - Graphene Chemical Sensor System as Reaction-Diffusion Wave-Based Computing System in Ionised Gaseous environments and their Applications Using Theoretical Studies and Scientific Computation Overview

The physics of plasmas encompasses basic problems from the universe and has assured us of promises in diverse applications to be implemented in a wider range of scientific and engineering domains, linked to most of the evolved and evolving fundamental problems. Substantial part of this domain could be described by R–D mechanisms involving two or more species (reaction–diffusion mechanisms). These could further account for the simultaneous non-linear effects of heating, diffusion and other related losses. We mention here that in laboratory scale experiments, a suitable combination of these processes is of vital importance and very much decisive to investigate and compute the net behaviour of plasmas under consideration. Plasmas are being used in the revolution of information processing, so we considered in this technical note a simple framework to discuss and pave the way for better formalisms and Informatics, dealing with diverse domains of science and technologies. The challenging and fascinating aspects of plasma physics is that it requires a great deal of insight in formulating the relevant design problems, which in turn require ingenuity and flexibility in choosing a particular set of mathematical (and/or experimental) tools to implement them.