Relação entre hábitos bucais, alterações oronasofaringianas e mal-oclusões em pré-escolares de Vitória, Espírito Santo, Brasil

O objetivo deste estudo foi estimar a prevalência das mal-oclusões e variáveis a elas associadas, como hábitos deletérios (HD) e as alterações oronasofaringianas (AO), respiração bucal, deglutição atípica e fonação atípica, em crianças com idade de três anos, no Município de Vitória, Espírito Santo, Brasil. A amostra constituiu-se de 291 crianças de ambos os sexos, matriculadas nos Centros de Educação Infantil, selecionadas por meio de amostragem probabilística por conglomerados. A análise de regressão logística indicou maior risco relativo (RR) de crianças com sobressaliência alterada, mordida aberta e mordida cruzada, em apresentar: respiração bucal (RR = 1,89; IC: 1,56-2,03), (RR = 2,46; IC: 2,00-3,02), (RR = 1,45; IC: 1,23-1,72); deglutição atípica (RR = 2,57; IC: 1,87-3,52), (RR = 3,49; IC: 2,53-4,81), (RR = 1,86; IC: 1,46-2,39) e fonação atípica (RR = 2,25; IC: 1,66-3,05), (RR = 3,18; IC: 2,38-4,25), (RR = 1,71; IC: 1,32-2,22), respectivamente. Foi mostrado haver associação entre sucção de dedo e de chupeta com sobressaliência alterada (p < 0,001) e sucção de chupeta e mordida aberta (p < 0,001). Esses resultados indicam que a prevalência das mal-oclusões está associada aos HD e às AO.

Deglaciation sequences in the Permo-Carboniferous Itarare Group, Parana Basin, southern Brazil

The Late Carboniferous-Early Permian Itarare Group is a thick glacial unit of the Parana Basin. Five unconformity-bounded sequences have been defined in the eastern outcrop belt and recognized in well logs along 400 km across the central portion of the basin. Deglaciation sequences are present in the whole succession and represent the bulk of the stratigraphic record. The fining-upward vertical facies succession is characteristic of a retrogradational stacking pattern and corresponds to the stratigraphic record of major ice-retreat phases. Laterally discontinuous subglacial tillites and boulder beds occur at the base of the sequences. When these subglacial facies are absent, deglaciation sequences lie directly on the basal disconformities. Commonly present in the lowermost portions of the deglaciation sequences, polymictic conglomerates and cross-bedded sandstones are generated in subaqueous proximal outwash fans in front of retreating glaciers. The overlying assemblage of diamictites, parallel-bedded and rippled sandstones, and Bouma-like facies sequences are interpreted as deposits of distal outwash fan lobes. The tops of the deglaciation sequences are positioned in clay-rich marine horizons that show little (fine-laminated facies with dropstones) or no evidence of glacial influence on the deposition and likely represent periods of maximum ice retreat. (c) 2006 Elsevier Ltd. All rights reserved.

Caracterização e classificação de solos desenvolvidos de arenitos da formação Aquidauana-MS

A formação Aquidauana é constituída por um conjunto de sedimentos com até 500 m de espessura, predominando arenito de granulometria fina a média, intercalado com conglomerado arenoso. Nesse ambiente, o relevo é um dos principais fatores condicionantes na formação de solos. Objetivou-se, neste trabalho, caracterizar e classificar os solos desenvolvidos desses arenitos. Para isso, foram estudados quatro perfis ao longo de uma topossequência, de uma pendente representativa das colinas suaves onduladas verificadas na área de estudo. Os perfis localizavam-se no terço superior (P1), terço médio (P2), terço inferior (P3) e sopé de encosta (P4). Eles foram morfologicamente descritos, e os horizontes, caracterizados quanto às propriedades físicas e químicas. Os solos estudados apresentaram predomínio da fração areia (> 680 g kg-1), com textura variando de franco-arenosa (P4) a franco-argiloarenosa. Os valores de pH em água variaram de 4,2 a 6,5. Os valores de capacidade de troca catiônica variaram de 1,6 cmol c kg-1 no P4 a 10,3 cmol c kg-1 no P2, com predomínio dos íons H+ no P1 e P4 e Ca2+ no P2 e P3. Os horizontes subsuperficiais do P1 e P4 são distróficos, enquanto em P2 e P3 verificou-se elevada saturação por bases, evidenciando caráter eutrófico. À exceção do P2, os demais apresentaram argila de baixa atividade. em todos os perfis verificaram-se atributos morfológicos, físicos, químicos e mineralógicos condicionados pelo material de origem e relevo, demonstrando a influência desses fatores na pedogênese.

Mesozoic tectonic evolution of the south Orkney microcontinent, Scotia arc, Antarctica

The South Orkney Islands are the exposed part of a continental fragment on the southern limb of the Scotia are. The islands are to a large extent composed of metapelites and metagreywackes of probable Triassic sedimentary age. Deformation related to an accretionary wedge setting, with associated metamorphism from anchizone to the greenschist facies, are of Jurassic age (176-200 Ma). on Powell Island, in the centre of the archipelago, five phases of deformation are recognized. The first three, associated with the main metamorphism, are tentatively correlated with early Jurassic subduction along the Pacific margin of Gondwana. D-4 is a phase of middle to late Jurassic crustal extension associated with uplift. This extension phase may be related to opening of the Rocas Verdes basin in southern Chile, associated with the breakup of Gondwanaland. Upper Jurassic conglomerates cover the metamorphic rocks unconformably. D-5 is a phase of brittle extensional faulting probably associated with Cenozoic opening of the Powell basin west of the archipelago, and with development of the Scotia are.

Diamondiferous deposits in the Jequitai area (Minas Gerais, Brazil): a consequence of neotectonic processes

Diamonds obtained from small scale mining near Jequitai and surrounding villages are extracted from Tertiary conglomerates and Quaternary gravels of the Rio Jequitai. Eocretaceous conglomerates, which are locally poorly diamondiferous, cover parts of the Serra da Agua Fria and Serra do Cabral. They are of no economic importance. Analyses of neotectonic, post-Miocene features support a transpressive regime that gave rise to N-S to N25&DEG; E transcurrent faults, and WNW normal faults. The main evidence for neotectonic processes are inclined Tertiary sediments, drainage captures, striated laterites of Miocene age, and tilting of blocks that form the Rio Jequitai graben. Diamonds in the Tertiary terraces derived from the Eocretaceous conglomerates, which were affected by neotectonic processes, followed by erosion and concentration during redeposition of sediments.

Aspectos microestruturais e texturais dos metassedimentos da formacao eleuterio

This work describes the primary and tectonic-metamorphic structures of the Eleuterio Formation, cropping 1 km NW of the village of Eleuterio, State of Sao Paulo. The structural feature have been studied chiefly in low grade metamorphic siltites, arkoses and conglomerates. The textural evolution is marked by fragmentation, clay minerals reaction, pression solution with silica recrystallization, mechanical rotation in minerals, fluid circulation and dissolution, mica beards, the possibily crystallization of biotite and epidote, and so on. The tectonic metamorphic foliation now described is supposed to be formed by simple shear with a possible pure shear component. -English summary

Nova contribuiçao ao conhecimento da formação Rio Claro (T) na Folha Rio Claro (SP)

The Rio Claro Formation mainly occurs in the county of Rio Claro (SP) lying unconformably on Paleozoic and Mesozoic rocks. Its thickness is 30-40 m. It shows fine to coarse, regular to poor sorted, Triable sandstones and conglomerates with quartzite and quartz clasts in the base. Thin layers of mudstone occur interbeded. Stratigraphic maps had been elaborated in recent analyses allowing to improve the knowledge about the formation. The biggest thicknesses occur on the east part of the studied area. The coarse/fine clastic ratio map demonstrates that fine sediments are concentrated in the east side, and suggests the existence of barriers which conditioned perennial water body (or bodies) where decantation took place (east, south and southeast sides). The structural contour map of the Rio Claro Formation base indicates a NW/SE trough which was the main depositional axis. The integrated analysis demonstrates that the formation is formed by lacustrine, fluvial and debris flows deposits whose source area was located on NW side, with coalescent alluvial fans from where braided to psamitic meandering fluvial channels came. The location of the source area suggests no link with the Corumbataf River paleo-terraces.

Facies sedimentares e ambientes deposicionais da Formação Barbalha no vale do cariri, bacia do araripe, nordeste do Brasil

The Aptian Barbalha Formation represents the first unit of the post-rift sequence of the Araripe Basin and crops out at the slopes of the Aranpe plateau in the eastern part ot Aranpe Basin. The unit has also been named Kio da Batateira Formation, but this name is here used in its original definition as Batateira Beds, an interval of great lateral continuity and characterized by the presence of bituminous shales of the Alagoas Stage (P-270 palynological biozone). This paper presents the results of a stratigraphic analysis carried out along the outcrop belt in order to establish the facies architecture and to interpret deposicional environments of the siliciclastic Barbalha Formation. Detailed stratigraphic vertical sections were measured and correlated. They allowed the recognition of two depositional sequences characterized by fining upward arrangement of facies, beginning with fluvial deposits and ending with lacustrine deposits at their tops. The end of the first cycle is represented by black shales and brecciated limestones of the Batateira Beds that record a geologic event of regional magnitude and serve as meaningful long-distance stratigraphic mark. The second deposicional sequence overlies disconformably the Batateira Beds and begins with clast-supported conglomerates, which are covered by a succession of fluvial sandstones and minor intervals of pelitic rocks. The sandstone content diminishes towards the top and the upper part of the unit is characterized by the presence of ostracode-rich green shales. The Barbalha Formation is conformably overlaid by Late Aptian lacustrine limestones belonging to the Crato Member of the Santana Formation.

The effects of soil pollution and its relation with morbidity in shoreline areas

Soil and subsoil pollution is not only significant in terms of environmental loss, but also a matter of environmental and public health. Solid, liquid and gaseous residues are the major soil contamination agents. They originate from urban conglomerates and industrial areas in which it is impossible to emphasize the chemical, petrochemical and textile industry; thermoelectric, mining, and ironmaster activities. The contamination process can thus be defined as a compound addition to soil, from what qualitative and or quantitative manners can modify soil's natural characteristics and use, producing baneful and deteriorative effects on human health. Studies have shown that human exposition to high concentration of some heavy metals found on soil can cause serious health problems, such as pulmonary or kidney complications, liver and nervous system harm, allergy, and the chronic exposition that leads to death. The present study searches for the correlation among soil contamination, done through a geochemical baseline survey of an industrial contamination area on the shoreline of Sao Paulo state. The study will be conducted by spatial analysis using Geographical Information Systems for mapping and regression analysis. The used data are 123 soil samples of percentage concentration of heavy metals. They were sampled and spatially distributed by geostatistics methods. To verify if there is a relation between heavy metals soil pollution and morbidity an executed correlation and regression analysis will be done using the pollution registers as the independent variables and morbidity as dependable variables. It is expected, by the end of the study, to identify the areas relation between heavy metals soil pollution and morbidity, moreover to be able to provide assistance in terms of new methodologies that could facilitate soil pollution control programs and public health planning. © 2010 WIT Press.

Nível de atividade física e principais barreiras percebidas por indivíduos adultos: um levantamento no município de Rio Claro - SP

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Atividade biológica de gel dentifrício e enxagüatório bucal contendo extratos vegetais

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estimativa da vulnerabilidade natural do aquífero livre no município de Rio Claro/SP

Pós-graduação em Geociências e Meio Ambiente - IGCE

Análise faciológica e rochas-reservatório do Grupo Itararé (permocarbonífero) no sudeste do estado de São Paulo

Pós-graduação em Geologia Regional - IGCE

Movimento cooperativista e associativista: um estudo sobre algumas formas de organização, resistência e criação dos trabalhadores frente ao modo de produção capitalista

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Evolução tectono-sedimentar mesozóico-cenozóica da região de Franca

Pós-graduação em Geologia Regional - IGCE