Glass transition temperature of hard chairside reline materials after post-polymerisation treatments

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Spermatozoa ultrastructure in Sciaenidae and Polynemidae (Teleostei : Perciformes) with some consideration on Percoidei spermatozoa ultrastructure

Spermatozoa ultrastructure was studied in five marines (Paralonchurus brasiliensis, Larimus breviceps, Cynoscion striatus, Micropogonias furnieri, Menticirrhus americanus, Umbrina coroides, Stellifer rastrifer), and one freshwater (Plagioscion squamosissimus) species of Sciaenidae and one species of Polynemidae (Polydactylus virginicus). The investigation revealed that, in all species, spermatozoa display a round head, a nucleus containing highly condensed, filamentous chromatin clusters, no acrosome, a short midpiece with a short cytoplasmic channel, and a flagellum showing the classic axoneme structure (9 + 2) and short irregular lateral fins. In Sciaenidae, the spermatozoa are type II, the flagellar axis is parallel to the nucleus, the lateral nuclear fossa is double arched, the centriolar complex is outside the nuclear fossa, the proximal centriole is anterior and perpendicular to the distal centriole, and no more than ten spherical (marine species) or elongate (freshwater species) mitochondria are observed. Polynemidae spermatozoa are of the intermediate type with the flagellar axis eccentric to the hemi-arc-shaped nucleus, and exhibit no nuclear fossa, the centriolar complex close to the upper nuclear end, the proximal centriole lateral and oblique to the distal centriole, and one large ring-shaped mitocondrion. The data available show that no characteristic is exclusively found in the spermatozoa of members of the Sciaenidae family when compared to other Percoidei with type II spermatozoa. However, three characteristics were exclusively found in Polynemidae: (1) the hemi-arched nucleus; the positioning of the centrioles; and (2) the ring-shaped mitocondrion. The interrelationships between Sciaenidae and Polynemidae as well as between these two families and other Percoidei are herein discussed. (c) 2005 Elsevier Ltd. All rights reserved.

A capoeira como escola de ofício

The purpose of this paper is to provide an in-depth look at the origins of the capoeira, as well as the occupation school, aiming to structure a work in the historic-bibliographic perspective which allows elucidating this relation with the occupation school, since this beging its origins until nowadays. It is a descriptive study, using the source documentary collection of data. Among the results it was observed that the capoeira it was not considered a ocupation (it was rather forbidden) but a "subsistence system", being transmitted from one generation to the other orally. The paths that the capoeira has walked through and, under certain circumstance, has draw for itself, make it a occupation school, such as in the relationship master-apprentice which lasts until the present moment. We are able to conclude that the capoeira as corporation and occupation school are realities lived due to its structure and function, both present in the contemporary world.

Atividade antagônica in vitro de isolados de Trichoderma spp. ao fungo Phytophthora citrophthora

Gummosis is among the main fungal diseases of the citrus. It is caused by Phytophthora sp. and usually shows up in the lap of the plant, provoking rottenness and gum exudation, and expands causing the plant death for constrictions in the cambium or phloem which interrupts the descending flow of sap. The objective of this work was to evaluate the antagonistic in vitro activity of Trichoderma spp. to the fungi Phytophthora citrophthora. Phytophthora citrophthora was exposed to five environments of antagonism (without antagonist and with four strains of Trichoderma viride, T. virens, T. harzianu and T stromaticum), The in vitro essay was accomplished through the method of paired cultures. A completely randomized desing was used with five treatments and three replications, and each plot was represented by three petri dishes. The isolates of Trichoderma demonstrated significant effect in the inhibition of the mycelial growth of the fungi Phytophthora citrophthora, and the fungi Trichoderma stromaticum presented larger antagonism to the fungi P. citrophthora while the T harzianum presented antagonism smaller.

Plasma lipid profile of experimentally induced hyperlipidemic New Zealand white rabbits is not affected by resveratrol

Hyperlipidemia is well recognized as an important risk factor in the development of atherosclerosis. Low-density lipoproteins (LDL) are components of cholesterol that are highly associated to an increased risk of cardiovascular diseases. Hypercholesterolemia induces proteolytic and oxidative changes in vasculature, leading to a local inflammatory response. Since dietary antioxidants have attracted considerable attention as preventive and therapeutic agents, the polyphenolic compound resveratrol seems to play an important role in prevention of human atherosclerosis. Researches show that resveratrol inhibits LDL oxidation and platelet aggregation, as well as vascular prolifer ation of smooth muscle cells. However, recent findings in animal models reveal conflicting results regarding its effects on plasma lipid levels. The aim of the present study was to evaluate the effect of resveratrol on plasma biochemistry profile in New Zealand white rabbits submitted to a hypercholesterolemic diet. Twenty healthy, male, adult New Zealand white rabbits were fed with ordinary diet for one week before being divided into four treatment groups, containing five animals each. Group CT received maintenance diet; group R received maintenance diet and resveratrol (3mg/kg/day) given orally; group CL received maintenance diet enriched with 1.5% cholesterol; and group CR received maintenance diet enriched with 1.5% cholesterol and resveratrol (3mg/kg/day) given orally. During the experiment, from each animal, samples of 3mL venous blood were collected in heparin twice monthly for measurements of total cholesterol, triglycerides, and low- and high-density lipoproteins. The data analysis revealed that resveratrol did not have a hypolipidemic effect in experimentally induced hypercholesterolemic New Zealand white rabbits.

Ensino e aprendizagem da arte na escola de samba

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Macroecologia de cetáceos marinhos (ordem cetacea)

Pós-graduação em Ciências Biológicas (Zoologia) - IBRC

Modos de expressão do discurso didático n'Os trabalhos e os dias' de Hesíodo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise das pressões do uso e ocupação da terra sobre trecho da faixa de dutos Rio - Belo Horizonte

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Investigando o processo ensino-aprendizagem de LE in-tandem: aprendizagem da língua francesa em contexto digital

Pós-graduação em Estudos Linguísticos - IBILCE

O ensino do Modelo de Leitura Documentária como recurso pedagógico para indexação na perspectiva entre profissional experiente e aprendiz: a aplicação do Protocolo Verbal Interativo na avaliação do uso e da ação de aprendizagem

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Capoeira Angola: saberes, valores e atitudes na formação do mestre

Pós-graduação em Ciências da Motricidade - IBRC

Mito e Educação no Cotidiano Escolar

Quando falamos em mito, pensamos na origem das coisas; quando falamos em cotidiano, pensamos na atualidade de que se revestem essas coisas. No entanto, para entendermos, algumas vezes, expressões utilizadas pelo povo é preciso conhecer as narrativas que nos contam a origem do mundo onde habitamos. Assim, modernamente, podemos dizer que o mito sobrevive em calendários, na liturgia, em cerimônias oficiais, preso aos rituais que comandam tais ocorrências, nas sociedades avançadas em que o homem, curvado sob o peso do tecnicismo e da barbárie mecanicista, é subjugado pelo progresso feroz que o encurrala e o faz desempenhar o papel de aprendiz de feiticeiro. Assim, se ao mito, estão entrelaçadas as nossas falas atuais, deverá ele estar presente, também, na escola e nos conteúdos trabalhados por ela para que alunos e professores possam compreender e atualizar as relações estabelecidas, ao longo do tempo, entre os fatos históricos e as narrativas que os relatam. Com esse objetivo foi desenvolvido junto à Secretaria de Educação de Rio Claro, na escola “Sérgio Hernani Fittipaldi”, o Projeto “Narrar histórias, intercambiar experiências”, financiado pelo Núcleo de Ensino da UNESP. Foram onze encontros, nos quais foram apresentados aos professores do Ensino Fundamental a arte de contar histórias, forma de conhecimento de quem somos e de como nos relacionamos com nossos semelhantes e com o mundo à nossa volta. Ao enfocarmos o gênero ficção, demos destaque, na literatura infantil aos mitos e suas transposições para a narrativa literária. Dessa forma, a primeira parte deste artigo é constituída pelo enfoque ao campo conceitual sobre o mito. A segunda parte ilustra as criações literárias que retomam os mitos, como a obra infantil de Monteiro Lobato.

Experimentos de baixo custo para o ensino de eletrostática no nível fundamental

The experimentation in the teaching of physics has been extensively studied over the years because of its potential as a tool demonstration of physics phenomena studied in classroom. In such a perspective view of the action of apprentice student involving teaching future teachers of physics, under the Program PIBID CAPES, developed since 2009, seeks ways to improve the teaching of physics experiments using the theme chosen for the electrostatic work was . In this particular work, we report the development of the project in a State School located in the city of Rio Claro, in two rooms in the 9th grade in elementary school. It is planned with the activities of teaching physics at this level of education, look at how two different ways of displaying the contents of electrostatics in a playful way for elementary students and implement a library of experiments so that students can take the experiments to their homes

Artefoto : a ênfase fotográfica

Pós-graduação em Artes - IA