Artisanal fisheries production in the coastal zone of Itaipu, Niterói , RJ, Brazil

As pescarias artesanais na zona costeira de Itaipu-RJ desempenham um papel importante no mercado local, mas pouco se conhece sobre a produção e a produtividade da pesca. De abril-2001 a março-2003, nós monitoramos um total de 618 desembarques das pescarias de arrastos-de-praia (99), de redes de emalhe (corvineira - 331, linguadeira - 40 e rede alta - 25), de linha-e-anzol (98), de zangareio (17), e de arpão e puçá (cinco e três respectivamente). A produção monitorada total foi de 21866 kg e a captura por unidade de esforço (CPUE) de 35,4 kg.viagem-1. Considerando o número de dias efetivos de pesca e a produção média diária por arte de pesca, a produção anual foi estimada em 136687 kg (0.2% da produção do estado em 2004). Os recursos predominantes foram: Micropogonias furnieri,Trichiurus lepturus, lulas (Loligo spp.), peixes clupeiformes (Sardinella brasiliensis,Cetengraulis edentulus,Pellona harrowerii e Harengula clupeola ), Eucinostomus spp., Cynoscion spp., Menticirrhus spp., Caranx crysos e Selene setapinnis. A análise combinada utilizando métodos de classificação hierárquica e não-hierárquica separou quatro grupos de artes de pesca e cinco de espécies, baseada nos seus padrões de similaridade, identificando as artes de pesca que melhor capturam os diferentes grupos de recursos pesqueiros. O arrasto-de-praia foi a arte de pesca menos seletiva e mais produtiva no verão. A corvineira foi a segunda pescaria mais produtiva com rendimentos maiores no verão e outono. As capturas com linguadeira incluíram raias e Paralychthys spp., enquanto que a rede alta capturou principalmente M. furnieri,Mugil spp. e tubarões.Artisanal fisheries in the coastal zone of Itaipu-RJ play an important role in the local market, but little is known about production and productivity of the fisheries. From April 2001 to March 2003, we monitored a total of 618 landings from the beach-seine (99), the gill nets ("corvineira" - 331, "linguadeira" - 40 and "rede alta" - 25), the hook and line (98), the squid jigging (17), and the spear fishing and trap fisheries (five and three, respectively). The total monitored production was 21866 kg and the catch per unit effort (CPUE) 35.4 kg.trip-1. Considering the number of effective fishing days and the average daily production per fishing gear, the annual production was estimated at 136687 kg (0.2% of the state's production in 2004). Predominant resources were: Micropogonias furnieri,Trichiurus lepturus, squids (Loligo spp.), clupeiform fishes (Sardinella brasiliensis, Cetengraulis edentulus, Pellona harrowerii and Harengula clupeola), Eucinostomus spp., Cynoscion spp., Menticirrhus spp., Caranx crysos and Selene setapinnis. The combined analysis using hierarchical and non-hierarchical classification methods, separated four fishing gears and five species groups, based on their similarity patterns, identifying gears that most effectively capture the different fish groups. The beach-seine was less selective and most productive fishery in the summer. The "corvineira" was the second most productive fishery with higher yields in the summer and fall. Catches of "linguadeira" included rays and Paralychthys spp., wherereas the "rede alta" caught primarily M. furnieri,Mugil spp. and sharks

Pé-duro: o boi do Piauí.

bitstream/CPAMN-2009-09/19688/1/peduro2.pd

Origin of strong scarring of wavefunctions in quantum wells in a tilted magnetic field

The anomalously strong scarring of wavefunctions found in numerical studies of quantum wells in a tilted magnetic field is shown to be due to special properties of the classical dynamics of this system. A certain subset of periodic orbits are identified which are nearly stable over a very large interval of variation of the classical dynamics; only this subset are found to exhibit strong scarring. Semiclassical arguments shed further light on why these orbits dominate the experimentally observed tunneling spectra.Comment: RevTeX, 5 page

Automatic Power Consumption Reading on Digital Meters based on Adaptive Thresholds and Multiresolution Templates

The reading of electricity consumption in Brazil is usually performedmanually. One way to improve the time spent in the reading process is toprovide a tool that recognizes the consumption based on images. In thiscontext, this paper presents a method based on adaptive template matching forrecognizing the power consumption displayed in digital power meters troughimages. This is a part of SILEM - Mobile Reading System module, a validationsystem to automatically read and process images that are captured in the field,detect inconsistencies and at the same time perform automatic consumptionrecognition. The methodology results are promising, it recognized 72.18% ofall meter consumption correctly, with 86.38% of all meter having at least 5 of 6digits correctly recognized, minimizing human interactions to correct the readpower consumption

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 treatment871369379FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP2011/01160-

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.87369-7

Canalopatias em endocrinologia: achados genéticos recentes e fisiopatologia

Ion channels serve diverse cellular functions, mainly in cell signal transduction. In endocrine cells, these channels play a major role in hormonal secretion, Ca2+-mediated cell signaling, transepithelial transport, cell motility and growth, volume regulation and cellular ionic content and acidification of lysosomal compartments. Ion channel dysfunction can cause endocrine disorders or endocrine-related manifestations, such as pseudohypoaldosteronism type 1, Liddle syndrome, Bartter syndrome, persistent hyperinsulinemic hypoglycemia of infancy, neonatal diabetes mellitus, cystic fibrosis, Dent's disease, hypomagnesemia with secondary hipocalcemia, nephrogenic diabetes insipidus and, the most recently genetically identified channelopathy, thyrotoxic hypokalemic periodic paralysis. This review briefly recapitulates the membrane action potential in endocrine cells and offers a short overview of known endocrine channelopathies with focus on recent progress regarding the pathophysiological mechanisms and functional genetic defects.Canais iônicos auxiliam diferentes funções celulares, principalmente na transdução de sinal. Nas células endócrinas, esses canais têm funções importantes na secreção hormonal, sinalização do Ca2+, transporte transepitelial, regulação da motilidade, volume e conteúdo iônico celular e da acidificação do compartimento lisossomal (pH). Como esperado, as alterações nos canais iônicos podem causar distúrbios endocrinológicos, como pseudo-hipoaldosteronismo tipo 1, síndrome de Liddle, síndrome de Bartter, hipoglicemia hiperinsulinêmica da infância, diabetes melito neonatal, fibrose cística, doença de Dent, hipomagnesemia com hipocalcemia secundária, diabetes insípido nefrogênico e paralisia periódica tirotóxica hipocalêmica. Este artigo propõe uma breve revisão das canalopatias endócrinas conhecidas, com foco particular nos recentes progressos no conhecimento dos mecanismos fisiopatológicos adquirido a partir das alterações funcionais encontradas.Universidade Federal de São Paulo (UNIFESP) Escola Paulista de Medicina Departamento de MedicinaUNIFESP-EPM Departamento de BioquímicaUNIFESP, EPM, Depto. de MedicinaUNIFESP, EPM Depto. de BioquímicaSciEL