Fotogrametria na identificação de assimetrias posturais em cadetes e pilotos da academia da força aérea brasileira

OBJETIVO: Identificar se a atividade de treino de voo pode desencadear alterações posturais em cadetes e pilotos da Academia da Força Aérea Brasileira (AFA). MÉTODOS: Os sujeitos foram avaliados por meio de registro fotográfico em vista anterior e lateral direita, tendo como casuística 80 cadetes da AFA, divididos em quatro grupos, 20 em cada, e 15 pilotos do Esquadrão de Demonstração Aérea (EDA), formando o quinto grupo. As fotos foram transferidas para o Software de Avaliação Postural (SAPO), sendo traçados ângulos relacionados ao alinhamento vertical da cabeça (AVC), alinhamento horizontal da cabeça (AHC), alinhamento horizontal dos acrômios (AHA) e alinhamento horizontal das espinhas ilíacas ântero-superiores (AHE). RESULTADOS: Os resultados mostraram que, após comparação das médias das assimetrias posturais entre os grupos, não houve diferença estatisticamente significante em relação aos ângulos AVC, AHC e AHA. No entanto, na variável AHE, observou-se que o grupo de pilotos apresentou valores significativamente menores que os dos cadetes, sugerindo maior estabilidade postural em relação a essa variável. CONCLUSÃO: O AHE foi a única medida que apresentou diferença estatisticamente significate na comparação entre os pilotos e cadetes dos diferentes anos. Quanto aos demais alinhamentos, não houve diferença, podendo atribuir esse fato aos critérios exigentes de ingresso dos cadetes na AFA e a eficiência do treinamento físico realizado periodicamente.

Geochemistry Of Acid Mine Drainage From A Coal Mining Area And Processes Controlling Metal Attenuation In Stream Waters, Southern Brazil.

Acid drainage influence on the water and sediment quality was investigated in a coal mining area (southern Brazil). Mine drainage showed pH between 3.2 and 4.6 and elevated concentrations of sulfate, As and metals, of which, Fe, Mn and Zn exceeded the limits for the emission of effluents stated in the Brazilian legislation. Arsenic also exceeded the limit, but only slightly. Groundwater monitoring wells from active mines and tailings piles showed pH interval and chemical concentrations similar to those of mine drainage. However, the river and ground water samples of municipal public water supplies revealed a pH range from 7.2 to 7.5 and low chemical concentrations, although Cd concentration slightly exceeded the limit adopted by Brazilian legislation for groundwater. In general, surface waters showed large pH range (6 to 10.8), and changes caused by acid drainage in the chemical composition of these waters were not very significant. Locally, acid drainage seemed to have dissolved carbonate rocks present in the local stratigraphic sequence, attenuating the dispersion of metals and As. Stream sediments presented anomalies of these elements, which were strongly dependent on the proximity of tailings piles and abandoned mines. We found that precipitation processes in sediments and the dilution of dissolved phases were responsible for the attenuation of the concentrations of the metals and As in the acid drainage and river water mixing zone. In general, a larger influence of mining activities on the chemical composition of the surface waters and sediments was observed when enrichment factors in relation to regional background levels were used.

All Green, But Equal? Morphological Traits And Ecological Implications On Spores Of Three Species Of Mosses In The Brazilian Atlantic Forest.

Spores of the tropical mosses Pyrrhobryum spiniforme, Neckeropsis undulata and N. disticha were characterized regarding size, number per capsule and viability. Chemical substances were analyzed for P. spiniforme and N. undulata spores. Length of sporophyte seta (spore dispersal ability) was analyzed for P. spiniforme. Four to six colonies per species in each site (lowland and highland areas of an Atlantic Forest; Serra do Mar State Park, Brazil) were visited for the collection of capsules (2008 - 2009). Neckeropsis undulata in the highland area produced the largest spores (ca. 19 µm) with the highest viability. The smallest spores were found in N. disticha in the lowland (ca. 13 µm). Pyrrhobryum spiniforme produced more spores per capsule in the highland (ca. 150,000) than in lowland (ca. 40,000); longer sporophytic setae in the lowland (ca. 64 mm) than in the highland (ca. 43 mm); and similar sized spores in both areas (ca. 16 µm). Spores of N. undulata and P. spiniforme contained lipids and proteins in the cytoplasm, and acid/neutral lipids and pectins in the wall. Lipid bodies were larger in N. undulata than in P. spiniforme. No starch was recorded for spores. Pyrrhobryum spiniforme in the highland area, different from lowland, was characterized by low reproductive effort, but presented many spores per capsule.

Brazilian Natural Fiber (jute) As Raw Material For Activated Carbon Production.

Jute fiber is the second most common natural cellulose fiber worldwide, especially in recent years, due to its excellent physical, chemical and structural properties. The objective of this paper was to investigate: the thermal degradation of in natura jute fiber, and the production and characterization of the generated activated carbon. The production consisted of carbonization of the jute fiber and activation with steam. During the activation step the amorphous carbon produced in the initial carbonization step reacted with oxidizing gas, forming new pores and opening closed pores, which enhanced the adsorptive capacity of the activated carbon. N2 gas adsorption at 77K was used in order to evaluate the effect of the carbonization and activation steps. The results of the adsorption indicate the possibility of producing a porous material with a combination of microporous and mesoporous structure, depending on the parameters used in the processes, with resulting specific surface area around 470 m2.g-1. The thermal analysis indicates that above 600°C there is no significant mass loss.

The Effects Of Cyclosporin A And Heteropterys Tomentosa On The Rat Liver.

Cyclosporin A (CsA) is a widely employed immunosuppressive drug that is associated with several side effects, among then hepatotoxicity. Heteropterys tomentosa is a Brazilian plant efficient in reducing damage caused by CsA on the rat testis and prostate. The aim of this study was to evaluate the effect of CsA and H. tomentosa (administered isolated or simultaneously) on the liver of Wistar rats. The animals were treated daily with water (control), CsA (15mg/kg/day), H. tomentosa infusion or CsA+H. tomentosa, for 21 or 56 days. The treatments did not alter liver morphology or cause fibrosis. H. tomentosa administered for 21 days increased the number of hepatocyte nuclei and Kupffer cell volumetric proportion. After 56 days of treatment, H. tomentosa administration did not alter the parameters analyzed. Biochemical plasma dosages and liver stereology showed impairment caused by CsA-treatment after 21 days; these results were not observed after 56 days of treatment. The simultaneous treatment with CsA and H. tomentosa for 21 or 56 days did not alleviate nor accentuate CsA hepatic effects. The present study showed that the 21 days treatment with CsA caused more alteration to the liver than the 56 days treatment; this could be related to hepatic recovery after the long term treatment.

Significados da ginastica para mulheres praticantes em academia : corpo, saude e envelhecimento

Universidade Estadual de Campinas. Faculdade de Educação Física

Aplicação da escala de qualidade de vida em crianças de 07 a 12 anos praticantes de atividade fisica em academia e suas relações com a aptidão fisica

Universidade Estadual de Campinas . Faculdade de Educação Física

A (in)elegibilidade feminina na Academia Brasileira de Letras: Carolina Michaëlis e Amélia Beviláqua

A Academia Brasileira de Letras erigiu-se como um ambiente refratário à presença feminina. Embora mantida fora de cogitação durante seus primeiros oitenta anos de existência, a questão da "elegibilidade feminina" não deixou de integrar a pauta de algumas das sessões acadêmicas. Destarte, o presente artigo objetiva iluminar este tema, tendo em vista os bastidores de dois importantes episódios ocorridos, respectivamente, em 1911 e 1930, quais sejam: a cogitação do nome da filóloga Carolina Michaëlis para integrar o quadro de sócios correspondentes da "Casa de Machado de Assis" e a proposta oficial de candidatura encaminhada por Amélia Beviláqua, primeira mulher a tentar concorrer a uma vaga entre os membros efetivos da agremiação.

Heavy metal concentrations in soils from a remote oceanic island, Fernando de Noronha, Brazil

This paper examines the role of parent rock, pedogenetic processes and airborne pollution in heavy metal accumulation in soils from a remote oceanic island, Fernando de Noronha, Brazil. We studied five soil profiles developed from different volcanic rocks. Mineralogical composition and total concentrations of major and trace elements were determined in 43 samples. The obtained concentrations range for heavy metals were: Co: 26-261 ppm; Cu: 35-97 ppm; Cr: 350-1446 ppm; Ni: 114-691 ppm; Zn: 101-374 ppm; Hg: 2-150 ppb. The composition of soils is strongly affected by the geochemical character of the parent rock. Pedogenesis appears to be responsible for the accumulation of Zn, Co, and, to a lesser extent, of Ni and Cu, in the upper, Mn- and organic carbon-enriched horizons of the soil profiles. Pedogenic influence may also explain the relationship observed between Cr and the Fe. Hg is likely to have been added to the soil profile by long-range atmospheric transport. Its accumulation in the topsoil was further favoured by the formation of stable complexes with organic matter. Clay minerals do not appear to play an important role in the fixation of heavy metals.

Passando do limite no ambiente de trabalho

Fernanda ?? servidora p??blica. Ap??s ter feito doutorado no exterior, retornou ao Brasil ??vida por aplicar seus novos conhecimentos em a????es desenvolvidas pelo minist??rio de origem. Contudo, seu novo superior imediato mostrou-se refrat??rio ?? servidora, demonstrando oposi????o sistem??tica e injustificada ??s suas ideias e ridicularizando-a em diversas oportunidades diante de seus pares e subordinados. As atribui????es de Fernanda foram paulatinamente retiradas, culminando na perda de seu cargo comissionado. A servidora tentou reagir, acionou o Departamento de Recursos Humanos do minist??rio e outros ??rg??os, mas nada adiantou. Fernanda, ao final, tomou uma atitude desesperada. O caso trata de ass??dio moral e de como tal situa????o se desenvolve dentro de um ??rg??o p??blico, sem que outros servidores e as unidades do ??rg??o se envolvam na quest??o. Ao final da narrativa, h?? quest??es para discuss??o que focam o ass??dio moral e seus desdobramentos