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Sample records for pintado pseudoplatystoma corruscans

  1. Canibalismo entre larvas de pintado, Pseudoplatystoma corruscans, cultivadas sob diferentes densidades de estocagem - DOI: 10.4025/actascibiolsci.v26i3.1543 Cannibalism among larvae of Pseudoplatystoma corruscans bred under different stockage densities - DOI: 10.4025/actascibiolsci.v26i3.1543

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    Claudemir Martins Soares

    2004-04-01

    Full Text Available Com o objetivo de verificar o desenvolvimento, sobrevivência e canibalismo entre larvas de pintado, Pseudoplatystoma corruscans (Pimelodidae confinadas sob diferentes densidades de estocagem em condições de laboratório, foi desenvolvido um experimento no Laboratório de Aqüicultura da Universidade Estadual de Maringá, perfazendo um período de 72 horas, onde foram utilizadas 500 larvas com 96 horas de vida e peso inicial de 2,2 ± 0,3mg. Estas foram distribuídas em um delineamento inteiramente casualizado com quatro tratamentos e cinco repetições, em recipientes de 700mL, cujas densidades variaram de 14, 28, 42 e 56 larvas/L. As variáveis analisadas foram mortalidade natural, mortalidade por predação intra-específica e peso final. Ao final, verificou-se que o aumento da densidade afetou de forma negativa o desenvolvimento e provocou um aumento linear nas taxas de mortalidade e canibalismo entre os animais. Concluiu-se que, à medida que se aumenta a concentração de larvas de pintado, ocorre redução não apenas no desempenho, mas também na taxa de sobrevivênciaThe development, survival and cannibalism among larvae of the pintado, Pseudoplatystoma corruscans (Pimelodidae are verified. Larvae were confined at different stockage densities in lab conditions. The experiment was developed at the Aquaculture Lab of the State University of Maringá, during 72 hours, with 500 larvae aged 96 hours, initial weight 2.2 ± 0.3mg. Larvae were distributed in an entirely randomized design with four treatments and five repetitions, in 700mL-containers, at densities varied 14, 28, 42 and 56 larvae per L. Natural mortality, mortality by intraspecies predation and final weight were the variables analyzed. After finished, density increase affected negatively the larvae’s development. It also caused a linear increase in mortality rates and in cannibalism among the animals. Increase in concentration of pintado larvae was proportional to decrease in

  2. Fertilização e desenvolvimento embrionário: morfometria e análise estereomicroscópica dos ovos dos híbridos de surubins (pintado, Pseudoplatystoma corruscans x cachara, Pseudoplatystoma fasciatum = Fertilization and embrionary development: morphometry and stereomicroscopic analysis of hybrids’ eggs from surubins (pintado, Pseudoplatystoma corruscans and cachara, Pseudoplatystoma fasciatum

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    Francine Faustino

    2007-01-01

    Full Text Available O objetivo deste estudo foi analisar a morfometria dos ovos dos híbridos sob estereomicroscópio. Foi realizada a reprodução induzida em exemplares de fêmeas de pintado (P. corruscans e de machos de cachara (P. fasciatum do Cepta - Ibama, Pirassununga, Estado de São Paulo, Brasil. As amostras foram coletadas no momento da extrusão, durante a fertilização, nos tempos 10 e 30 segundos, 1, 2, 5, 8, 10, 15, 20, 30 e 45 minutos, 1 hora, a cada 15 minutos até completar 2 horas e depois a cada hora até a eclosão da larva. Ovócitos e ovos foram observados quanto à morfologia externa, fotografados e 30 amostras de cada momento foram medidas em estereomicroscópio. Os ovócitos, no momento da extrusão, eos ovos apresentaram formato esférico e coloração amarelada. As características observadas foram: amplo espaço perivitelínico, somitos, presença da vesícula. As principais fases do desenvolvimento embrionário como célula-ovo (blastodisco, 2, 4, 8, 16, 32 e 64 blastômeros, mórula, blástula, gástrula e eclosão da larva também foram verificadas.This study aimed to analyze the morphometry of hybrids’ eggs under stereomicroscopy. The induced reproduction was carried out in specimens of pintado’s females (P. corruscans and cachara’smales (P. fasciatum from Cepta - Ibama, Pirassununga, state of São Paulo, Brazil. Samples were collected in extrusion moment, during the fertilization, in times of 10 and 30 seconds, 1, 2, 5, 8, 10, 15, 20, 30 and 45 minutes, 1 hour, at every 15 minutes until completing 2hours, and afterwards, at every hour until the larval hatching. Oocytes and eggs’ external morphology were observed, photographed and 30 samples from each moment were measured in stereomicroscopy. Oocytes, in the time of extrusion, and the eggs presented aspherical form and yellowish color. Characteristics such as wide perivitelinic space, somites, presence of optical vesicle and the main phases of embryonic development as egg

  3. Genetic divergence between Pseudoplatystoma corruscans and Pseudoplatystoma reticulatum (Siluriformes: Pimelodidae in the Paraná River Basin

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    TS. Bignotto

    Full Text Available Pseudoplatystoma corruscans (Spix and Agassiz, 1829 and Pseudoplatystoma reticulatum (Eingenmann and Eigenmann, 1889 are large migratory catfishes of high biological importance and great commercial value in South America. Because fertile crossbreeds can be artificially produced in hatcheries, a high genetic proximity between these two Pimelodidae species is conceivable. Possible escape of crossbred specimens from pisciculture stations is a serious environmental concern. Despite their importance, knowledge of P. corruscans and P. reticulatum biology, ecology, population diversity and genetics is limited. In the present work, the genetic divergence between P. corruscans and P. reticulatum populations from the Paraná River Basin was analyzed on the basis of polymorphisms in ISSR fragments and in the hypervariable sequence of the mitochondrial DNA (mtDNA control region. Estimates of intraspecific haplotype (h > 0.5 and nucleotide diversities (π < 0.01 indicate that P. corruscans and P. reticulatum have survived a historical population decline, followed by a demographic expansion. The interspecific polymorphisms within the mtDNA control region and ISSR fragments were suitable as diagnostic molecular markers and could be used to discriminate the two species. A unique Pseudoplatystoma specimen, captured in the Upper Paraná River Floodplain, was identified by these DNA diagnostic markers as a hybrid P. reticulatum x P. corruscans, which possibly escaped from pisciculture. The integrity of the natural population of P. corruscans in the Upper Paraná River is at risk of genetic introgression or homogenization due to the presence of hybrids and the transposition of P. reticulatum upstream through the Canal da Piracema at Itaipu Dam. Data presented herein improve the understanding of the genetic relatedness between P. corruscans and P. reticulatum and represent potential tools for future programs of conservation and surveillance of genetic introgression

  4. Desempenho produtivo de Pseudoplatystoma corruscans estocados em sistemas de criação: semi-intensivo (viveiro escavado e intensivo (tanque-rede Growth performance of Pseudoplatystoma corruscans stocked in rearing systems: semi-intensive (ponds and intensive (cages

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    Andressa Daniela de Sousa Liranço

    2011-03-01

    Full Text Available Objetivou-se comparar o desempenho produtivo e custos de produção de exemplares de pintado, Pseudoplatystoma corruscans, estocados em dois sistemas de criação: semi-intensivo (viveiro escavado, VE e intensivo (tanque-rede, TR. Trezentos (300 peixes, com um ano de idade, foram estocados, sendo 150 em um VE (médias de peso e comprimento: 1,48±0,46kg e 57,31±6,42cm e 150 divididos em três TR (médias de peso e comprimento: 1,27±0,34kg e 55,05±4,11cm. Foram alimentados com ração extrusada de 15mm (diâmetro 40% PB e 3110kcal ED kg-1, ajustada mensalmente à quantidade de ração. Os parâmetros físico-químicos da água, observados durante o experimento, foram temperatura = 24,08°C±3,23; pH=6,89±0,39 e oxigênio dissolvido = 7,57±0,97mg L-1. Os reultados obtidos dos valores médios finais dos comprimentos (VE=74,07±4,34cm; TR=70,33±5,02cm e pesos dos peixes (VE=3,41±0,58kg e TR=2,94±0,60kg indicaram desempenho semelhante nos dois sistemas. As médias do fator de condição (0,09-0,036; ganho em peso diário (9,29g dia-1 - 8,95g dia-1; conversão alimentar (3,09-4,15; consumo total de ração (29,60g dia-1 - 74,16g dia-1; índice de crescimento (0,219-0,215 e sobrevivência (97,33-90,67% para VE e TR, respectivamente. Houve interação significativa entre os sistemas de criação e mês (PThe objective of this study was to compare the growth performance and cost of production of Pseudoplatystoma corruscans stocked in two culture systems: semi-intensive (ponds, P and intensive (cage, C. From three hundred (300 one-year-old fish, one hundred fifty (150 were stocked in one pond (mean weight and length 1.48±0.46kg and 57.31±6.42cm, one hundred fifty (150, distributed in three cages (mean weight and length 1.27±0.34kg and 55.05±4.11cm. The fish were fed with extruded commercial ration with 15.0mm floating pellets containing 40% crude protein (CP and, 3,110Kcal of digestible energy (DE, adjusted monthly. The parameters of water

  5. Isolation of probiotic bacteria from the hybrid South American catfish Pseudoplatystoma reticulatum × Pseudoplatystoma corruscans (Siluriformes: Pimelodidae: A haematological approach

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    José Luiz Pedreira Mouriño

    2016-05-01

    Full Text Available This study investigated bacterial strains with probiotic potential isolated from the middle portion of healthy hybrid surubim catfish foregut (Pseudoplatystoma reticulatum female × P. corruscans male. Twenty surubims weighing 1.5 ± 0.3 kg were used for bacterial isolation. In total, 41 strains of bacteria were selected in vitro. Ten strains had inhibition zones >10 mm against Aeromonas hydrophila. Five of those strains presented inhibition zones > 9 mm against other pathogenic bacteria and reached concentrations greater than 105 CFU mL−1 in tubes containing de Man, Rogosa and Sharpe (MRS medium. In particular, Weissella cibaria (P36 reached 106 CFU mL−1 in MRS and was able to reduce the pH of the medium to 3.85. In the in vivo intestinal colonization studies, 72 healthy hybrid surubims were fed with a commercial diet supplemented with probiotic W. cibaria for 15 days. Changes in gut community composition were then analyzed, and probiotic profile of W. cibaria was determined molecularly by amplification of rRNA 16S gene was performed using PCR. Compared to control fish, W. cibaria-supplemented fish showed an increase in RBC. These results show the efficacy of our haematological approach to probiotic screening in hybrid sorubim.

  6. Sobrevivência e crescimento de larvas de surubim Pseudoplatystoma corruscans (Spix & Agassiz, 1829) sob diferentes condições alimentares

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    Sérgio Antônio Medeiros Marinho

    2007-01-01

    A produção comercial do surubim Pseudoplatystoma corruscans vem crescendo cada vez mais no país, onde vários são os aspectos relacionados ao cultivo dessa espécie, que requer cuidados extremos, principalmente nas fases iniciais, das quais, embora seja grande o número de indivíduos produzidos numa única desova, os organismos são extremamente frágeis. A substituição de várias espécies de plânctons nas dietas das larvas, por outras menos dispendiosas, ou seja, dietas artificiais vem sendo alvo d...

  7. Migration and spawning of female surubim (Pseudoplatystoma corruscans, Pimelodidae) in the São Francisco river, Brazil

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    Godinho, Alexandre L.; Kynard, Boyd; Godinho, Hugo P.

    2007-01-01

    Surubim, Pseudoplatystoma corruscans, is the most valuable commercial and recreational fish in the São Francisco River, but little is known about adult migration and spawning. Movements of 24 females (9.5–29.0 kg), which were radio-tagged just downstream of Três Marias Dam (TMD) at river kilometer 2,109 and at Pirapora Rapids (PR) 129 km downstream of TMD, suggest the following conceptual model of adult female migration and spawning. The tagged surubims used only 274 km of the main stem downstream of TMD and two tributaries, the Velhas and Abaeté rivers. Migration style was dualistic with non-migratory (resident) and migratory fish. Pre-spawning females swam at ground speeds of up to 31 km day-1 in late September–December to pre-spawning staging sites located 0–11 km from the spawning ground. In the spawning season (November–March), pre-spawning females migrated back and forth from nearby pre-spawning staging sites to PR for short visits to spawn, mostly during floods. Multiple visits to the spawning site suggest surubim is a multiple spawner. Most post-spawning surubims left the spawning ground to forage elsewhere, but some stayed at the spawning site until the next spawning season. Post-spawning migrants swam up or downstream at ground speeds up to 29 km day-1 during January–March. Construction of proposed dams in the main stem and tributaries downstream of TMD will greatly reduce surubim abundance by blocking migrations and changing the river into reservoirs that eliminate riverine spawning and non-spawning habitats, and possibly, cause extirpation of populations.

  8. Injuries caused by the venomous catfish pintado and cachara (Pseudoplatystoma genus in fishermen of the Pantanal region in Brazil

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    GIULIANO N.R. DE AQUINO

    2016-01-01

    Full Text Available ABSTRACT INTRODUCTION: the fishing activity throughout the Upper Paraguay River Basin has huge financial and biological importance. This retrospective study investigated the occurrence of injuries caused by fish of the Pseudoplatystoma genus (spotted catfish or pintado and striped catfish or cachara in professional fishermen of the Pantanal of Mato Grosso do Sul State. METHODS: we collected information through a questionnaire, showing that fishing is carried out by workers with low level of education, mainly adults or seniors with low financial gains. RESULTS: in Miranda town, 126 of 315 fishermen were interviewed and 38 individuals reported injuries (30.16%. In Corumbá town, 355 of 627 fishermen were interviewed, and 111 (56,61% reported injuries. The lacerated lesions were the most common, associate with edema, erythema, radiating pain to the root of the limb, paresthesias and local necrosis. More rarely, they reported the occurrence of fever, cardiac arrhythmias and cold sweating. These manifestations may be associated with late secondary infections or envenomations caused by the toxins in the stingers of the fish. Many questionable and inappropriate treatments are used, sometimes aggravating the injuries. CONCLUSIONS: the freshwater professional fishermen need guidance on first aid measures and prevention of accidents caused by these venomous fish.

  9. Molecular identification of Pseudoplatystoma sp. fish fillets by Multiplex PCR / Identificação molecular de filés de peixe Pseudoplatystoma sp. por PCR-Multiplex

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    Cátia Maria de Oliveira Lobo

    2014-08-01

    Full Text Available Nuclear and mitochondrial genes were used as molecular markers for verifying the iden-tity of fish fillets marketed as pintado (Pseudoplatystoma corruscans. Based on THE polymorphisms of nuclear DNA (RAG2, globin, and EF1 genes and mitochondrial regions (16S, we examined whether the fillets originated from inbred species of pintado or from hybrids derived from crosses between cachara (P. reticulatum and pintado. Nuclear genes from both species were detected in the analyzed fillets (n = 29. This clearly iden-tified these fish as interspecific hybrids (or F1/first filial generation of the type “cacha-pinta,” resulting from a cross between female cachara and male pintado. These results demonstrate that monitoring fish fillet trading is crucial for detecting discrepancies between the marketed species and related information declared on the label. Species that are frequently hybridized, such as pintado and cachara, require special attention. -------------------------------------------------------------------- Marcadores moleculares (PCR-Multiplex de genes nucleares e mitocondriais foram uti-lizados para verificar a identidade molecular de filés de peixe comercializados como pintado (Pseudoplatystoma corruscans com base em polimorfismos de regiões do DNA nuclear (genes RAG2, globina e EF1 e mitocondriais (16S para verificar se os filés per-tenciam a espécie pura de pintado ou se eram híbridos derivados do cruzamento entre cachara (Pseudoplatystoma reticulatum e pintado (Pseudoplatystoma corruscans. Os filés analisados (n = 29 apresentaram genes nucleares de ambas espécies P. corruscans e P. reticulatum, e desta forma, foram identificados como híbridos interespecíficos ou F1 (primeira geração filial do tipo “cachapinta” resultante do cruzamento entre uma fêmea de cachara e um macho de pintado. Estes resultados mostram que o monitora-mento da comercialização de filés de peixe é fundamental para identificar situações onde

  10. Diferenciação genética entre populações de Pseudoplatystoma corruscans (Agassiz, 1829 (Osteichthyes, Pimelodidae isoladas pelos saltos de Guaíra do rio Paraná Genetic differentiation among populations of Pseudoplatystoma corruscans (Agassiz, 1829 (Osteichthyes, Pimelodidae isolated by the Guaíra Falls in the Paraná River

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    Sônia Maria Alves Pinto Prioli

    2002-05-01

    Full Text Available Os saltos de Guaíra, também denominados Sete Quedas, constituíam até 1982 uma barreira para a dispersão de peixes migradores. Este trabalho teve por objetivo verificar se populações de Pseudoplatystoma corruscans (Osteichthyes, Pimelodidae eram isoladas pelos saltos de Guaíra. Amostras provenientes da planície de inundação do alto rio Paraná (PL, do reservatório Itaipu (IT e de jusante de Yacyretá (YA, foram comparadas por RAPD. O FST de Lynch foi significativo entre PL e IT (0,090 e PL e YA (0,112. O fluxo gênico estimado (Nm variou de 2,0 entre PL e YA a 8,1 entre IT e YA, e a distância genética de Nei de D = 0,0638 entre PL e YA a D = 0,0174 entre IT e YA. Estes resultados indicam existência de diferenciação genética e que, possivelmente, Sete Quedas isolavam reprodutivamente as populações. Sugerem, também, a possibilidade de áreas diferentes de desova, impedindo parcialmente a homogeneização genética das populações IT e PL.Until 1982, the Guaíra Falls, also named the Seven Falls, constituted a barrier to the dispersion of migratory fish in the Paraná River. The objective of this work was to verify if populations of Pseudoplatystoma corruscans (Osteichthyes, Pimelodidae were isolated by the Guaíra Falls. Samples from the Upper Paraná River floodplain (PL, the Itaipu reservoir (IT, and downstream Yacyretá reservoir (YA were compared by RAPD markers. Lynch's FST was significant between PL and IT (0.090, and PL and YA (0.112. Estimated gene flow (Nm varied from 2.0 between PL and YA to 8.1 between IT and YA. Nei's genetic distance varied from D = 0.0638 between PL and YA to D = 0.0174 between IT and YA. These results indicate the existence of genetic differentiation and that, possibly, the Guaíra Falls isolated the populations reproductively. They also suggest the possibility of different spawning areas, partially avoiding the genetic homogenization of the IT and PL populations.

  11. Coeficientes de digestibilidade aparente da proteína e energia de alguns ingredientes utilizados em dietas para o pintado (Pseudoplatystoma coruscans Apparent digestibility coefficients of protein and energy of some ingredients used in diets for pintado, Pseudoplatystoma coruscans (Agassiz, 1829

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    Emílio Guedes Gonçalves

    2003-08-01

    Full Text Available O presente trabalho foi desenvolvido com o objetivo de determinar os coeficientes de digestibilidade aparente da proteína e da energia dos principais alimentos utilizados na formulação de dietas para alevinos de pintado. Foram utilizados 600 alevinos com peso médio inicial de 9,80 ± 1,48 g e comprimento total médio de 13,00 ± 1,00 cm. Na coleta de fezes, foi utilizado o sistema de Guelph modificado. As 12 dietas-teste foram constituídas por 69,50% de uma dieta de referência, 0,50% de óxido de cromo (marcador inerte e 30% do ingrediente estudado. Após receberem as dietas teste durante três dias, os peixes foram transferidos para os aquários de coleta (incubadoras de fibra de vidro de 80 litros de capacidade, onde as fezes foram coletadas em intervalos de meia hora. Com base nos coeficientes de digestibilidade da fração protéica, os alimentos que apresentaram maior aproveitamento para esse nutriente foram: farinha de peixe (84,14%, farelo de soja (67,10%, milho (64,18% e farinha de vísceras de aves (61,25%. Foram observados valores razoáveis somente para a digestibilidade do conteúdo energético em metade dos ingredientes estudados; para as farinhas de peixe, milho, soja integral tostada e os farelos de soja, de trigo e de arroz, os coeficientes médios foram: 72,80; 57,39; 64,95; 61,66; 53,20 e 51,84%, respectivamente. A farinha de peixe foi o melhor ingrediente para o pintado (45,38% PD e 2790,42 kcal ED/kg, seguido do farelo de soja (30,86% PD e 2708,45 kcal ED/kg, da soja integral tostada (18,34% PD e 3121,06 kcal ED/kg, do milho (5,86% PD e 2691,53 kcal ED/kg e do farelo de trigo (8,08% PD e 2265,13 kcal ED/kg.The present work was developed in order to determine the protein and energy apparent digestibility coefficients of the principal ingredients used in the pintado juvenile diets. Six hundred juveniles with initial weight and total length means of 9.80 ± 1.48 g and 13.00 ± 1.00 cm, respectively, were used. The modified

  12. Development of gluten-free fish (Pseudoplatystoma corruscans) patties by response surface methodology.

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    Romero, Mara C; Fogar, Ricardo A; Rolhaiser, Fabiana; Clavero, Verónica V; Romero, Ana M; Judis, María A

    2018-05-01

    The goal of this study was to develop a fish-based product suitable for people with celiac disease. Water and gluten-free flours (rice, corn, amaranth or quinoa) were added to improve cooking yield, texture parameters and as an aid in improving quality attributes such as taste and juiciness. Cooking yields of patties containing gluten-free flours were higher than control and maximum values ranged between 91 and 93%. Hardness was higher in patties made with amaranth or quinoa flour, whereas cohesiveness and springiness were higher in patties made with corn and rice flour, respectively. Response surface methodology was used to optimize patties formulations. Optimized formulations were prepared and evaluated showing a good agreement between predicted and experimental responses. Also, nutritional value and consumer acceptance of optimized formulations were analysed. Flours addition affected proximate composition increasing carbohydrates, total fat and mineral content compared to control. Sensory evaluation showed that no differences were found in the aroma of products. Addition of rice flour increased juiciness and tenderness whereas taste, overall acceptance and buying intention were higher in control patty, followed by patties made with corn flour. The present investigation shows good possibilities for further product development, including the scale up at an industrial level.

  13. Geological Study of Monica Pintado mine. Florida town

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    Medina, E.; Carrion, R.

    1988-01-01

    This work is about the geological study carried in Monica Pintado mine in Florida town by photointepretation - scale 1.20.000. In the area were found rocks granites, deep metamorfites and black granite

  14. Feeding of larvae of the hybrid surubim Pseudoplatystoma sp. under two conditions of food management - doi: 10.4025/actascibiolsci.v35i2.15359

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    Aryadne Simões Rocha

    2013-05-01

    Full Text Available We evaluated the growth and diet composition of hybrid surubim larvae (Pseudoplatystoma corruscans x P. reticulatum produced in two fish farming by using different systems of feeding with natural plankton: M I, larvae are transferred to fertilized fish pond for being freely fed with natural plankton; M II, larvae are remained inside laboratory in glass fiber boxes and plankton are gathered with a plankton net and offered in a controlled way. It was collected 10 individuals daily during the feeding period with live plankton for 20 days. After the biometry, stomachs were opened and the food items identified and quantified by the volumetric method. The items were represented by algae, protozoa, microcrustacean, insect larvae and surubim fragments (cannibalism. The items with higher volumetric percentage were Chironomidae larvae (29.25% followed by surubim fragments (19.68% in M I, and surubim fragments (21.85% and Moina micrura (19.97% in MII. The items Chydorus sp., Diaphanosoma sp., sp. Macrothrix and Ephemeroptera larvae were found only in fish of M I, while algae Ulothrix sp., Oscillatoria sp. and the protozoa Difflugia sp were only found in stomachs of surubim from M II. Regarding the growth, the surubim had grown faster in M I.

  15. Physiological responses of cacharas Pseudoplatystoma reticulatum submitted to natural anesthetics

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    Milena Souza dos Santos Sanchez

    2014-02-01

    Full Text Available The present study the aimed to evaluate the induction time, recovery time and physiological responses of cacharas, Pseudoplatystoma reticulatum, submitted to eugenol and menthol. 42 cacharas were exposed to eugenol 100 mgL-1 (n=14 and menthol 150 mgL-1 (n=14 and the control group (n=14 which were not exposed to any anesthetics. At the time 0 and 24 hours after induction, the bloods of 7 fishes per treatment were collected to measure the hematologic parameters and plasma glucose evaluation. The recovery was conducted in aquariums free of anesthetic, and induction and recovery times were monitored. The results were submitted to analysis of variance (P0.05 for induction time, however the recovery time had a significant reduction (P<0.05 for the menthol 150 mgL-1. There was no treatment effects on hematologic parameters, except for mean corpuscular volume (VCM, which was observed an interaction effect between factors, once fish anesthetized with eugenol showed significant reduction (P<0.05 on VCM 24 hours after anesthesia. Plasma glucose values did not differ at 0 hour after induction. 24 hours after induction, both control group and fishes exposed to eugenol and menthol were significantly reduce in VCM. Eugenol at 100 mgL-1 and menthol at 150 mgL-1 may be safely induced in cachara during biometrics procedures.

  16. Quality attributes and properties of surubim (Pseudoplatystoma spp. meat

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    Letícia Emiliani Fantini

    2015-12-01

    Full Text Available The aim of this study was to evaluate the quality attributes and properties of fillets from surubins (Pseudoplatystoma spp. reared in cages and fishponds. The design of the study was completely randomized, with two treatments (cage and fishpond and 16 replicates each. The fillets from fishes reared in cage and fishpond had a mean total weight of 134.71 ± 33.11 g and 151.56 ± 18.56 g, respectively. The following parameters were analyzed: pH, water retention capacity (WRC, color (L* brightness, (a* red, (b* yellow, and shear force (SF. The data were subjected to analysis of variance and the means were compared by Tukey’s and Mann-Whitney (nonparametric tests. Statistically significant differences (p<0.05 were observed for WRC, SF, and pH variables. Only for color attributes (L*, (a*, (b*, no statistically significant difference (p>0.05 was detected between the treatments. A lower pH (6.17 ± 0.23 was observed in fillets from surubins reared in cage. As this is close to the isoelectric point of myofibrillar proteins, it reduces their net charge and, consequently, their capacity to retain water. Lower WRC of fillets obtained from fishes reared in cage (61.46 ± 1.62% implies loss of nutritional value through the exudate released which results in drier fillets and compromised tenderness. In fillets from cage production, SF (1.06 ± 0.22 kgf was higher than those from fishpond, i.e., the higher the shear force, the lower the tenderness of the fillet. On the basis of the observation that fillets from fishes reared in fishponds were more tender, this study confirmed that the quality of surubin fillets is influenced by the production system.

  17. Azulejos pintados toledanos : colección de la Casa y Museo de El Greco

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    María Luisa Menéndez Robles

    1991-01-01

    Full Text Available Se considera como azulejo en sentido estricto a una pieza de barro vidriado de forma cuadrada o rectangular, destinada a revestimientos arquitectónicos. Es esta su finalidad principal aunque no la única sobre todo desde la implantación del azulejo plano pintado para cubrir amplias superficies como si se tratara de cuadros o tapices. Muy a menudo se forran con estas piezas cerámicas pavimentos, techos, envigados y cubiertas en exterior, pero van a ser los muros el espacio predilecto para chapar. Es justamente esta preferencia la que personaliza, por lo que al uso se refiere, al azulejo pintado peninsular frente a su homónimo italiano. Las características de la superficie recubierta van a incidir sobre la selección de motivos que se organizarán en grandes paneles murarlos desarrollados de manera continuada. La temática del azulejo que reviste paramentos gira en torno a lo que se denomina azulejos de composición en los que se representa un asunto o motivo puntual a cuyo realce contribuye el resto, o bien más frecuentemente, se opta por repetir un motivo contenido íntegramente en cada azulejo, que además posee parte de otro común con la contigua. Se logra así con el empleo de módulos repetitivos, hacer asociaciones en cualquier dirección, según las posibilidades del espacio disponible, de ahí el enorme éxito de la fórmula.

  18. Levels of digestible protein to surubim (Pseudoplatystoma sp. reared in net cages

    Directory of Open Access Journals (Sweden)

    Claucia Aparecida Honorato

    2014-10-01

    Full Text Available The Pseudoplatystoma sp. is species of carnivorous fish that require special attention in the diet offered. This work had the objective to determine the digestible protein requirement of juvenile the Pseudoplatystoma sp. reared in net cages. The test consisted of four isoenergetic diets (2606.69 ± 39.16 kcal kg-1 of digestible energy containing increasing levels of digestible protein (23, 24, 26 and 28%PD provided to juveniles of surubim (157.35±11.23g for five months. The parameters of growth, fillet composition, metabolic liver enzymes and morphometry of the intestine and liver were analyzed in completely randomized design with four treatments and four replicates. An increase of protein in the diet provided better weight gain. The metabolic liver enzymes increased in fish fed 24PD. The histopathological changes were not observed in the liver of the fish. The bowel histology showed adaptation to increased protein in the diet until the 26 level PD. juveniles of Pseudoplatystoma sp. Were demanding in digestible protein, showing the best results of production performance and nutrient use efficiency with the diet containing 28%PD.

  19. Palinofloras de las formaciones El Morterito y Palo Pintado [Mioceno Superior-Plioceno Inferior], noroeste de Argentina

    OpenAIRE

    Horn, Maricel Yanina

    2014-01-01

    En esta Tesis Doctoral se presenta el estudio palinológico de dos unidades litológicas del Mioceno Tardío/Plioceno de Argentina: la Formación El Morterito (Aloformación Playa del Zorro) aflorante en el valle del Cajón, provincia de Catamarca y Formación Palo Pintado en el Valle Calchaquí, provincia de Salta. La sucesión Neógena del valle del Cajón fue primeramente descripta como Formación El Morterito, posteriormente se reconocieron tres Aloformaciones. Considerando las áreas de distribución ...

  20. Performance of juveniles of Pseudoplatystoma fasciatum fed graded levels of corn gluten meal

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    Álvaro José de Almeida Bicudo

    2012-06-01

    Full Text Available The objective of this work was to evaluate corn gluten meal (CGM as a substitute for fish meal in diets for striped catfish (Pseudoplatystoma fasciatum juveniles. Eight isonitrogenous (46% crude protein and isoenergetic (3,450 kcal kg-1 digestible energy diets, with increasing levels of CGM - 0, 6, 12, 18, 24, 30, 36, and 42% -, were fed to juvenile striped catfish (113.56±5.10 g for seven weeks. Maximum values for weight gain, specific growth rate, protein efficiency ratio and feed conversion ratio, evaluated by polynomial quadratic regression, were observed with 10.4, 11.4, 15.4 and 15% of CGM inclusion, respectively. Feed intake decreased significantly from 0.8% CGM. Mesenteric fat index and body gross energy decreased linearly with increasing levels of CGM; minimum body protein contents were observed with 34.1% CGM. Yellow pigmentation of fillets significantly increased until 26.5% CGM, and decreased from this point forth. Both plasma glucose and protein concentrations decreased with increased CGM levels. The inclusion of 10-15% CGM promotes optimum of striped catfish juveniles depending on the parameter evaluated. Yellow coloration in fillets produced by CGM diets can have marketing implications.

  1. Histological development of the digestive system of the Amazonian pimelodid catfish Pseudoplatystoma punctifer.

    Science.gov (United States)

    Gisbert, E; Moreira, C; Castro-Ruiz, D; Oztürk, S; Fernández, C; Gilles, S; Nuñez, J; Duponchelle, F; Tello, S; Renno, J F; García-Dávila, C; Darias, M J

    2014-11-01

    The organogenesis of the digestive system was described in the Amazonian pimelodid catfish species Pseudoplatystoma punctifer from hatching (3.5 mm total length, TL) to 41 days post-fertilization (dpf) (58.1 mm TL) reared at 28°C. Newly hatched larvae showed a simple digestive tract, which appeared as a straight undifferentiated and unfolded tube lined by a single layer of columnar epithelial cells (future enterocytes). During the endogenous feeding period, comprised between 20 and 96 h post-fertilization (3.5 to 6.1 mm TL), the larval digestive system experienced a fast transformation with the almost complete development and differentiation of most of digestive organs (buccopahrynx, oesophagus, intestine, liver and exocrine pancreas). Yolk reserves were not completely depleted at the onset of exogenous feeding (4 dpf, 6.1 mm TL), and a period of mixed nutrition was observed up to 6 to 7 dpf (6.8 to 7.3 mm TL) when yolk was definitively exhausted. The stomach was the organ that latest achieved its complete differentiation, characterized by the development of abundant gastric glands in the fundic stomach between 10 and 15 dpf (10.9 to 15.8 mm TL) and the formation of the pyloric sphincter at the junction of the pyloric stomach and the anterior intestine at 15 dpf (15.8 mm TL). The above-mentioned morphological and histological features observed suggested the achievement of a digestive system characteristic of P. punctifer juveniles and adults. The ontogeny of the digestive system in P. punctifer followed the same general pattern as in most Siluriform species so far, although some species-specific differences in the timing of differentiation of several digestive structures were noted, which might be related to different reproductive guilds, egg and larval size or even different larval rearing practices. According to present findings on the histological development of the digestive system in P. punctifer, some recommendations regarding the rearing practices of this

  2. Complete mitochondrial genome from South American catfish Pseudoplatystoma reticulatum (Eigenmann & Eigenmann) and its impact in Siluriformes phylogenetic tree.

    Science.gov (United States)

    Villela, Luciana Cristine Vasques; Alves, Anderson Luis; Varela, Eduardo Sousa; Yamagishi, Michel Eduardo Beleza; Giachetto, Poliana Fernanda; da Silva, Naiara Milagres Augusto; Ponzetto, Josi Margarete; Paiva, Samuel Rezende; Caetano, Alexandre Rodrigues

    2017-02-01

    The cachara (Pseudoplatystoma reticulatum) is a Neotropical freshwater catfish from family Pimelodidae (Siluriformes) native to Brazil. The species is of relative economic importance for local aquaculture production and basic biological information is under development to help boost efforts to domesticate and raise the species in commercial systems. The complete cachara mitochondrial genome was obtained by assembling Illumina RNA-seq data from pooled samples. The full mitogenome was found to be 16,576 bp in length, showing the same basic structure, order, and genetic organization observed in other Pimelodidae, with 13 protein-coding genes, 2 rNA genes, 22 trNAs, and a control region. Observed base composition was 24.63% T, 28.47% C, 31.45% A, and 15.44% G. With the exception of NAD6 and eight tRNAs, all of the observed mitochondrial genes were found to be coded on the H strand. A total of 107 SNPs were identified in P. reticulatum mtDNA, 67 of which were located in coding regions. Of these SNPs, 10 result in amino acid changes. Analysis of the obtained sequence with 94 publicly available full Siluriformes mitogenomes resulted in a phylogenetic tree that generally agreed with available phylogenetic proposals for the order. The first report of the complete Pseudoplatystoma reticulatum mitochondrial genome sequence revealed general gene organization, structure, content, and order similar to most vertebrates. Specific sequence and content features were observed and may have functional attributes which are now available for further investigation.

  3. Lactococcus garvieae outbreaks in Brazilian farms Lactococcosis in Pseudoplatystoma sp. - development of an autogenous vaccine as a control strategy.

    Science.gov (United States)

    Fukushima, H C S; Leal, C A G; Cavalcante, R B; Figueiredo, H C P; Arijo, S; Moriñigo, M A; Ishikawa, M; Borra, R C; Ranzani-Paiva, M J T

    2017-02-01

    This study evaluated the control of streptococcosis outbreaks in Brazil, isolated from diseased sorubim and identified as Lactococcus garvieae by genetic sequencing. This report determined the potential for lactococcosis control in sorubim Pseudoplatystoma sp. with two vaccines: an aqueous-based, whole-cell inactivated vaccine (bacterin) and an oil-adjuvanted bacterin. Their efficacy was evaluated at 30 days post-vaccination (d.p.v.) by challenge with L. garvieae, and the antibody production response at 15, 30 and 60 d.p.v. and the non-specific immune response were compared amongst treatments. High protection levels (P oil-adjuvanted vaccine with a relative percentage survival value of 81.7% at 30 d.p.v. Additionally, the oil-adjuvanted vaccine increased the immunogenicity of the bacterin as indicated by greater agglutination antibody titres from 15 until 60 d.p.v. This is the first report of a positive effect of vaccine administration on the specific immunity of sorubim, and the study showed that a specific antibody plays an important role in sorubim defence against lactococcosis because the innate immune responses were similar in all of the studied animals. These results demonstrated that oil-adjuvanted vaccine can be an effective alternative for the protection of sorubim from L. garvieae disease. © 2016 John Wiley & Sons Ltd.

  4. Characterization of the early development of Pseudoplatystoma reticulatum Eigenmann & Eigenmann, 1889 (Siluriformes: Pimelodidae from the Paraguay River Basin

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    Fernanda F. Andrade

    Full Text Available ABSTRACT This study described the initial development of Pseudoplatystoma reticulatum, as well as changes in growth patterns. Morphometric and meristic variables were analyzed during embryonic, larval and juvenile periods, even as allometric growth coefficients for larvae and juveniles. Eggs showed an average diameter of 1.79 mm and broad perivitelline space (23.41%. The total length (TL of the larvae ranged from 3.05 to 25.72 mm, and the total number of myomeres ranged from 45 to 50 (preanal = 13-16 and postanal = 30-35. Initial pigmentation is poor, concentrated at the extremities of the yolk sac. In the flexion stage, the pigmentation intensifies and forms a longitudinal stripe extending from the snout to the operculum and two longitudinal stripes on the body, one dorsal and the other ventral, that unite at the caudal peduncle. At first, there is a differential growth of the head and tail, and then there is the growth of the body, which shows changes in the ontogenetic priorities of feeding, swimming, and breathing capacities. Our results are very important for ecology, systematics, and hatchering, especially in terms of ontogenetic variation in morphology, growth, feeding, behavior, and mortality of P. reticulatum.

  5. Anatomia Funcional e Morfometria do Intestino no Teleostei (Pisces de Água Doce Surubim (Pseudoplatystoma coruscans - Agassiz, 1829

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    Seixas Filho José Teixeira de

    2001-01-01

    Full Text Available Os objetivos do presente trabalho foram estudar a anatomia funcional e a morfometria comparativas nos intestinos médio e no reto, do peixe Teleostei, surubim, Pseudoplatystoma coruscans (Agassiz, 1829 (Siluriformes, Siluroidei, Pimelodidae, de hábito alimentar carnívoro, em duas classes de tamanho, visando fornecer referência à nutrição para o ajuste de diferentes sistemas de alimentação artificial para essa espécie nativa. Por meio destes estudos concluiu-se que o intestino do surubim, sob o ponto de vista morfológico, deve ser denominado, de intestino médio e reto, devido a presença da valva ileorretal e da invaginação valvar intestinal entre esses segmentos. Em relação ao padrão de enrolamento do intestino, apesar do plano geral do intestino médio e do reto ter sido mantido, as alças do intestino médio apresentaram arranjo indefinido, não tendo sido determinado um arranjo-padrão para a espécie. O arranjo intestinal é compatível ao da maioria de peixes carnívoros, ou predominantemente carnívoro, uma vez que seu intestino é quase retilíneo; contudo, as circunvoluções das alças finais do intestino médio talvez possam ser vistas como adaptações a um possível regime onívoro, preferencialmente carnívoro. As pregas intestinais encontram-se mais complexas e desenvolvidas no intestino dos exemplares da segunda classe de tamanho. Procurando estabelecer relações entre o arranjo das pregas das mucosas e a velocidade de transporte do alimento no intestino médio da espécie estudada, sugere-se que o padrão longitudinal, com numerosas anastomoses retardam o avanço do alimento em sentido aboral, o que possibilita maior período digestivo e, conseqüentemente, maior aproveitamento dos nutrientes, pela exposição do material alimentar à mucosa intestinal por período maior, além de contribuir para a preparação do bolo fecal. As pregas da mucosa próxima ao ânus têm direção longitudinal, sugerindo auxílio na

  6. Stocking density of “Pseudoplatystoma” spp. surubim reared in cages Densidade de estocagem do surubim "Pseudoplatystoma" spp. cultivado em tanque-rede

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    Daniel Vieira Crepaldi

    2009-03-01

    Full Text Available This work aimed to determine the effect of stocking density on the biomass production, final weight, feed conversion and survival rate of Pseudoplatystoma spp. surubim reared in floating net cages under three initial stocking densities. Twelve floating net cages located in a 47-ha reservoir were stocked with 35, 70 and 105 fish/m3 averaging 50 g from April to August 1999. At the end of the experimental period (105 days, the final average weights of the treatments were 197.4, 171.15, and 161.45 g, respectively. The highest final mean weight was reached at the lowest initial density. No significant effects of initial stocking density were observed on survival (95.97, 97.80 and 96.73%, respectively and feed conversion rates (1.49; 1.60 e 1.56; respectively. The final biomass of 87.93, 157.67, and 220.46 kg were affected by the initial stocking density. At higher storage densities, the individual weight gain decreased, but the final biomass increased significantly.Objetivou-se com este trabalho determinar o efeito da densidade de estocagem na produção, no ganho de peso, na conversão alimentar e na sobrevivência do surubim Pseudoplatystoma spp. cultivado em tanques-rede, sob três diferentes densidades de estocagem iniciais. Doze tanques-rede foram instalados em uma represa de 47 ha e estocados com 35, 70 e 105 alevinos de surubim/m3, com peso médio de 50g, no período de abril a agosto de 1999. Ao final de 105 dias de experimento, os pesos finais médios para os tratamentos foram 197,4; 171,15 e 161,45 g, respectivamente. O maior peso médio foi alcançado no tratamento de menor densidade. As sobrevivências (95,97; 97,80 e 96,73%, respectivamente e a conversão alimentar (1,49; 1,60 e 1,56:1, respectivamente não foram afetadas pela densidade de estocagem inicial. As biomassas finais foram 87,93; 157,67 e 220,46 kg, respectivamente, com efeito significativo da densidade de estocagem inicial. Com o aumento da densidade de estocagem, houve redu

  7. Carcass traits of surubim (“Pseudoplatystoma” spp. evaluated by ultrasound Rendimento de carcaça em surubim ("Pseudoplatystoma" spp. avaliado por ultra-som

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    Daniela Chemim Melo

    2008-12-01

    Full Text Available The parameters of carcass trait of alive surubim (Pseudoplatystoma spp. evaluated by ultrasound were estimated in this trial. A total of 34 fish was divided into two groups according to average body weight: group 1 = 2.7 kg e group 2 = 1.5 kg. The fish were measured for total, head and standard lengths. Ultrasound images of four defined points were obtained: 1 - anterior insertion of dorsal fin; 2 - posterior insertion of dorsal fin; 3 - anterior insertion of fat fin and 4 - insertion of caudal fin. After, weights of carcass, head, shank fillet and belly fillet were obtained. Correlations of measures obtained by the ultrasound images with carcass yield traits were determined. The point 3 showed the best correlations for yield of group 1 with: carcass (0.91, head (0.86, shank fillet (0.87 and belly fillet (0.91. Carcass yield of group 1 was higher (70.9% than group 2 (66.9%, probably due to the highest head weight of these animals. The best equations for carcass yield and fillet weight were the ones that considered the measures of point 3 and total length, respectively. Ultrasound for evaluation of carcass traits in alive surubim is a reliable technique, once it can maintains reproducers with great performance inside stock.Objetivou-se com este trabalho definir parâmetros de avaliação do rendimento de carcaça em surubins Pseudoplatystoma spp. vivos por intermédio da ultra-sonografia. Foram utilizados 34 peixes divididos em dois grupos conforme peso médio: grupo 1 = 2,7 kg e grupo 2 = 1,5 kg. De cada exemplar obtiveram-se as medidas de comprimento total, comprimento de cabeça e comprimento padrão. Foram realizadas imagens dorso ventrais em quatro pontos: 1 - base anterior da nadadeira dorsal; 2 - base posterior da nadadeira dorsal; 3 - base anterior da nadadeira adiposa e 4 - base do pedúnculo caudal, onde foram mensuradas altura, largura e área da musculatura epi-axial. Posteriormente, foram obtidos pesos da carcaça, da cabeça, do fil

  8. Histopatologia de fígado, rim e baço de piaractus mesopotamicus, prochilodus lineatus e pseudoplatystoma fasciatum parasitados por myxosporídios, capturados no Rio Aquidauana, Mato Grosso do Sul, Brasil Histopathology of liver, kidney and spleen of Piaractus mesopotamicus, Prochilodus lineatus and Pseudoplatystoma fasciatum infected by myxosporean parasite, caugth in Aquidauana River, Mato Grosso do Sul, Brazil

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    Cristiane M. de Campos

    2008-12-01

    Full Text Available Este estudo descreveu a histopatologia de rim, baço e fígado de Piaractus mesopotamicus, Prochilodus lineatus e Pseudoplatystoma fasciatum, parasitados por mixosporídios, capturados no Rio Aquidauana, MS. Após necropsia, amostras do fígado, rim cefálico e baço foram colhidas, fixadas em formalina a 10 % tamponada e processadas de acordo com a rotina histológica. Os cortes foram feitos à espessura de 5 μm e corados com hematoxilina-eosina. Foram encontrados Myxobolus porofilus em P. lineatus, M. colossomatis em P. mesopotamicus e Myxobolus spp. nas três espécies de hospedeiros. Cistos de mixosporídios no exame histopatológico foram vistos no fígado e baço de P. mesopotamicus. Mais de 50% das amostras de fígado de P mesopotamicus e P lineatus apresentou hepatodistrofia difusa. Mais de 80 % das amostras de fígado de P. fasciatum apresentou formações hialinas concêntricas e esteatose em 50% das amostras. Em 95,23 % das amostras de rins de P. mesopotamicus, foram observadas alterações teciduais, e em mais de 60 % dos casos nefrodistrofia difusa moderada e congestão de sinusóides glomerulares. Alterações teciduais nas amostras de rins de P. lineatus foram observadas em menos de 20 % da amostra. No baço dos peixes ora examinados não foram encontradas lesões dignas de relato.Histological analysis of kidney, spleen and liver of Piaractus mesopotamicus, Prochilodus lineatus and Pseudoplatystoma fasciatum, infected by myxosporean, caugth in Aquidauana river, MS, was studied. After necropsy, samples of liver, previous kidney and spleen were fixed in 10 % buffered formalin and processed followed histological routine methods. Sections of 5 μm were stained with hematoxylin and eosin. Myxobolusporofilus, M. colossomatis and were found in P. lineatus, in P. mesopotamicus respectively and Myxobolus spp. Were also found in all three species of fish. Myxosporideans cysts in the liver and spleen of P mesopotamicus were also related. Up

  9. Growth of juvenile Pseudoplatystoma reticulatum and Pseudoplatystoma spp. in pond

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    Aline Mayra da Silva Oliveira

    2014-02-01

    Full Text Available The growth of the fish is an important factor that determines the potential of various species for economic exploitation. The aim this work was evaluates the growth juvenile cachara and hybrid grown in pond. Information was collected of weight and morphometric measures during the experimental period. Total length gain, body height gain, body width gain, weight gain, growth index, morphometric ratios and body percentage were calculated. The methodology of generalized linear models was used, considering Gamma distribution and inverse link function. The variances and averages of variables were submitted tests F of the Snedecor and Chi-Square, respectively. The hybrids gained more weight in second and third biometrics, beyond of presented greater total length gain and body percentage. The head size and head width of cacharas were higher in three biometrics. The variances of hybrids were higher in the second and third biometrics. The hybrids presented better performance, but lesser standardization for traits evaluated than pure specie, confirming the need development genetic improvement programs that performs pure species selection for increased commercial production.

  10. Experimental assessment of the effects of a Neotropical nocturnal piscivore on juvenile native and invasive fishes

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    Alejandra F. G. N. Santos

    Full Text Available We experimentally examined the predator-prey relationships between juvenile spotted sorubim Pseudoplastystoma corruscans and young-of-the-year invasive and native fish species of the Paraná River basin, Brazil. Three invasive (peacock bass Cichla piquiti, Nile tilapia Oreochromis niloticus, and channel catfish Ictalurus punctatus and two native (yellowtail tetra Astyanax altiparanae and streaked prochilod Prochilodus lineatus fish species were offered as prey to P. corruscans in 300 L aquaria with three habitat complexity treatments (0%, 50% and 100% structure-covered. Prey survival was variable through time and among species (C. piquiti < O. niloticus < A. altiparanae < P. lineatus < I. punctatus, depending largely on species-specific prey behavior but also on prey size and morphological defenses. Habitat complexity did not directly affect P. corruscans piscivory but some prey species changed their microhabitat use and shoaling behavior among habitat treatments in predator's presence. Pseudoplatystoma corruscans preyed preferentially on smaller individuals of those invasive species with weak morphological defensive features that persisted in a non-shoaling behavior. Overall, our results contrast with those in a companion experiment using a diurnal predator, suggesting that nocturnal piscivores preferentially prey on different (rather diurnal fish species and are less affected by habitat complexity. Our findings suggest that recovering the native populations of P. corruscans might help controling some fish species introduced to the Paraná River basin, particularly C. piquiti and O. niloticus, whose parental care is expected to be weak or null at night.

  11. Redescription of Prosthenhystera obesa (Diesing, 1850 (Callodistomidae, Digenea with New Host Records and Data on Morphological Variability

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    Anna Kohn

    1997-03-01

    Full Text Available Prosthenhystera obesa (Diesing,1850 Travassos, 1922 from the gall bladder of Astyanax bimaculatus, Caranx gibbosus, Galeocharax humeralis, Leporinus copelandii, Pimelodus fur, Pseudopimelodus roosevelti, Salminus brevidens, Salminus maxillosus and from the new hosts, Cynopotamus amazonum and Triurobrycon lundii is redescribed, demonstrating a large morphological variation, mainly in body and testes size and shape. New hosts harbouring immature specimens of P. obesa are presented: Brycon sp., Leporellus vittatus, Pachyurus squamipinnis, Pimelodus clarias, Pseudoplatystoma corruscans and Salminus hilarii. Scanning electron microscopy micrographies, original figures and measurements of adult and immature specimens from different Brazilian hosts and localities are presented

  12. Larvae of migratory fish (Teleostei: Ostariophysi in the lotic remnant of the Paraná River in Brazil

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    Evelyn Barzotto

    2015-08-01

    Full Text Available ABSTRACT Fish larvae and adults are morphologically distinct from each other and have different ecological requirements. Research on the dynamics of ichthyoplankton provides valuable information about the early stages of the life cycle of fish. This study analyzed the temporal and spatial distribution of the larval stages of three migratory species - Salminus brasiliensis (Cuvier, 1816, Prochilodus lineatus (Valenciennes, 1836 and Pseudoplatystoma corruscans (Agassiz, 1829 - to identify possible spawning areas in the last lotic remnant of the upper Paraná River, in the Brazilian territory. A total of 26 points were sampled monthly from October 2003 to November 2004. The PERMANOVA detected significant differences between the months only for S. brasiliensis (Pseudo-F = 3.88, p = 0.0021 and P. corruscans (Pseudo-F = 3.35, p = 0.004. Among the environmental variables, temperature was the most important and the Mantel test detected a significant correlation between temperature and the densities, only for P. lineatus (r = 0.09, p = 0.03. The species in our data chose for spawning tributaries that are not dammed, of which most are outside conservation areas. Therefore, recruitment, maintenance and possible actions aiming to recover the stocks of these species are dependent on the conservation of tributaries and floodplain lakes in the region, in addition to monitoring to prevent fishing during the reproductive period.

  13. He pintado cuadros sobre cómo pueden transformarse los seres

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    Enrique Casanto

    2014-09-01

    Full Text Available Las pinturas de Enrique Casanto, ashaninka del clan de la Orquidea, hacen ver en doble porque muestran que todo lo que existe tiene su duplo. Todo ser es a la vez humano y no-humano, inclusive él mismo y todos los de su clan Casanto, descendientes del gran guerrero Orquídea del pasado que usaba las estrategias de una flor inmóvil en el tronco para vencer a sus enemigos y, de tanto asemejarse a una orquídea, terminó convirtiéndose en dicha flor. Su arte muestra el pasaje de una forma corporal a la otra que acontece en la cosmología y las prácticas curativas chamánicas.

  14. Fish mercury concentration in the Alto Pantanal, Brazil: influence of season and water parameters.

    Science.gov (United States)

    Hylander, L D; Pinto, F N; Guimarães, J R; Meili, M; Oliveira, L J; de Castro e Silva, E

    2000-10-16

    The tropical flood plain Pantanal is one of the world's largest wetlands and a wildlife sanctuary. Mercury (Hg) emissions from some upstream gold mining areas and recent findings of high natural Hg levels in tropical oxisols motivated studies on the Hg cycle in the Pantanal. A survey was made on total Hg in the most consumed piscivorous fish species from rivers and floodplain lakes in the north (Cáceres and Barão de Melgaço) and in the south part of Alto Pantanal (around the confluence of the Cuiabá and Paraguai rivers). Samples were collected in both the rainy and dry seasons (March and August 1998) and included piranha (Serrasalmus spp.), and catfish (Pseudoplatystoma coruscans, pintado, and Pseudoplatystoma fasciatum, cachara or surubim). There was only a small spatial variation in Hg concentration of the 185 analyzed fish samples from the 200 x 200 km large investigation area, and 90% contained total Hg concentration below the safety limit for regular fish consumption (500 ng g(-1)). Concentration above this limit was found in both Pseudoplatystoma and Serrasalmus samples from the Baia Siá Mariana, the only acid soft-water lake included in this study, during both the rainy and dry seasons. Concentration above this limit was also found in fish outside Baia Siá Mariana during the dry season, especially in Rio Cuiabá in the region of Barão de Melgaço. The seasonal effect may be connected with decreasing water volumes and changing habitat during the dry season. The results indicate that fertile women should restrict their consumption of piscivorous fishes from the Rio Cuiabá basin during the dry season. Measures should be implanted to avoid a further deterioration of fish Hg levels.

  15. Bioaccumulation of mercury, cadmium, zinc, chromium, and lead in muscle, liver, and spleen tissues of a large commercially valuable catfish species from Brazil

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    Fábio P. Arantes

    2016-03-01

    Full Text Available The increasing amounts of heavy metals entering aquatic environments can result in high accumulation levels of these contaminants in fish and their consumers, which pose a serious risk to ecosystems and human health. We investigated the concentrations of mercury (Hg, cadmium (Cd, zinc (Zn, chromium (Cr, and lead (Pb in muscle, liver, and spleen tissues of Pseudoplatystoma corruscans specimens collected from two sites on the Paraopeba River, Brazil. The level of heavy metals concentrations in the tissues was often higher in viscera (i.e. liver and spleen than in muscle, and thus, the viscera should not be considered for human consumption. Correlations between metal concentrations and fish size were not significant. Although the levels of muscle bioaccumulation of Hg, Cd, Zn, Cr, and Pb, generally do not exceed the safe levels for human consumption, the constant presence of heavy metals in concentrations near those limits considered safe for human consumption, is a reason for concern, and populations who constantly consume fish from polluted rivers should be warned. Our findings also indicate that in a river network where certain areas are connected to other areas with high rates of environmental pollutants, people should be cautious about the regular consumption of fish, even when the fish consumed are caught in stretches of the basin where contamination levels are considered low, since many of the freshwater fish with high commercial value, such as the catfish surubim, are migratory.

  16. Redescription of Houssayela sudobim (Woodland, 1935) (Cestoda: Proteocephalidea), a parasite of Pseudoplatystoma fasciatum (Pisces: Siluriformes) from the River Amazon

    Czech Academy of Sciences Publication Activity Database

    de Chambrier, A.; Scholz, Tomáš

    2005-01-01

    Roč. 62, č. 3 (2005), s. 161-169 ISSN 0165-5752 R&D Projects: GA ČR GA524/04/0342; GA ČR GD524/03/H133 Institutional research plan: CEZ:AV0Z60220518 Keywords : Cestoda * morphology * fish Subject RIV: GJ - Animal Vermins ; Diseases, Veterinary Medicine Impact factor: 0.786, year: 2005

  17. Preliminary study on element mass fraction determination on catfish samples from Paraguay

    International Nuclear Information System (INIS)

    Moreira, Edson G.; Catharino, Marilia G.M.; Vasconcellos, Marina B.A.; Frutos, Sixto A.; Insaurralde, Mario S.

    2013-01-01

    South American catfish (Pseudoplatystoma), commonly known in Spanish as atigrado or surubi and in Portuguese as surubim or pintado is a large fish that typically reaches 1 m long and weighs 60 kg to 80 kg and may be found at the basins of the Amazon, the Sao Francisco and de la Plata rivers, usually in riverbeds and deep wells. Being a much appreciated fish for human consumption, it is quite sought after by fishermen who have been contributing to the reduction of the stocks. This fact attracted the attention of the Paraguayan authorities to the point of imposing restrictions to free fishing and commercialization. This study aims to assist the conservation efforts towards this fish by investigating its exposure to possible pollutants. Preliminary results on element determination on six samples of catfish from Paraguayan rivers are presented. Cs, Co, Fe, Se and Zn were determined by applying an Instrumental Neutron Activation Analysis method. While these element levels were lower than the legislation for human consumption, the elements As, Cr e La were not detected in the samples as they are below the detection limit of the method employed. Atomic Absorption Spectrometry was used to investigate the presence of Cd, Hg and Pb in the samples. Hg was detected in the samples while Cd and Pb were below the detection limit of the method. (author)

  18. Preliminary study on element mass fraction determination on catfish samples from Paraguay

    Energy Technology Data Exchange (ETDEWEB)

    Moreira, Edson G.; Catharino, Marilia G.M.; Vasconcellos, Marina B.A., E-mail: emoreira@ipen.br, E-mail: mbvascon@ipen.br, E-mail: mariliasemmler@uol.com.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil); Frutos, Sixto A.; Insaurralde, Mario S., E-mail: tony8013@hotmail.com, E-mail: insaurraldemar9@hotmail.com [Universidad Nacional de Asuncion (FCV/UNA), San Lorenzo (Paraguay). Facultad de Ciencias Veterinarias. Departamento de Pesca y Acuicultura

    2013-07-01

    South American catfish (Pseudoplatystoma), commonly known in Spanish as atigrado or surubi and in Portuguese as surubim or pintado is a large fish that typically reaches 1 m long and weighs 60 kg to 80 kg and may be found at the basins of the Amazon, the Sao Francisco and de la Plata rivers, usually in riverbeds and deep wells. Being a much appreciated fish for human consumption, it is quite sought after by fishermen who have been contributing to the reduction of the stocks. This fact attracted the attention of the Paraguayan authorities to the point of imposing restrictions to free fishing and commercialization. This study aims to assist the conservation efforts towards this fish by investigating its exposure to possible pollutants. Preliminary results on element determination on six samples of catfish from Paraguayan rivers are presented. Cs, Co, Fe, Se and Zn were determined by applying an Instrumental Neutron Activation Analysis method. While these element levels were lower than the legislation for human consumption, the elements As, Cr e La were not detected in the samples as they are below the detection limit of the method employed. Atomic Absorption Spectrometry was used to investigate the presence of Cd, Hg and Pb in the samples. Hg was detected in the samples while Cd and Pb were below the detection limit of the method. (author)

  19. PERSPECTIVAS DE SUSTENTABILIDADE ECOLÓGICA DO TURISMO EM XINGÓ, SE/AL / TOURISM ECOLOGICAL SUSTAINABILITY PERSPECTIVES IN XINGÓ, SERGIPE AND ALAGOAS, BRAZIL

    Directory of Open Access Journals (Sweden)

    Cláudio Roberto Braghini

    2009-06-01

    Full Text Available RESUMO A busca da sustentabilidade em várias dimensões implica olhar para o desenvolvimento local nos territórios em que o turismo ocorre. Este estudo analisou de forma sistêmica a relação entre turismo, gastronomia local e os recursos extraídos do rio São Francisco pela pesca artesanal, na região de Xingó, Nordeste do Brasil. A área de estudo abrangeu três municípios, Poço Redondo/SE, Canindé de São Francisco/SE e Piranhas/AL. Tratou-se de uma pesquisa exploratória, descritiva, intencional e não probabilística, utilizando entrevistas com roteiro estruturado e aberto, junto aos restaurantes, pescadores artesanais e gestores públicos, visitas locais de reconhecimento, construção de mapa coletivo com pescadores e elaboração de diagramas de alças causais, visando selecionar indicadores de sustentabilidade. Os resultados indicaram o Surubim Pseudoplatystoma corruscans (Spix e Agassiz, 1829, Pitu Macrobrachium carcinus (Linnaeus, 1758 e Tubarana Salminus hilarii (Valenciennes, 1850, os pescados típicos mais vendidos, no entanto, dependem de distribuidores e de estoques externos. Observou-se que a redução do pescado na região deveu-se à barragem da UHE de Xingó e a sobrepesca. O fluxo turístico crescente tem forte influência sobre o camarão Pitu. Os indicadores ambientais selecionados apontam necessidade de sistematização de informações sobre a produção pesqueira e o consumo nos restaurantes.Palavras-chaves: Sustentabilidade; Turismo; Xingó; Rio São Francisco; CaatingaABSTRACTThe carrying support and the development of the local tourism involve different looks on its dimensions in the area where it occurs. This study examined in a systematic way the sustainability of tourism in the Northeast - Brazil, region of Xingó: the resources tourist and local gastronomy. The study area covers three districts: Poço Redondo and Canindé do São Francisco at Sergipe and in the state of Alagoas at Piranhas. This research

  20. Homology of the Fifth Epibranchial and Accessory Elements of the Ceratobranchials among Gnathostomes: Insights from the Development of Ostariophysans

    Science.gov (United States)

    Carvalho, Murilo; Bockmann, Flávio Alicino; de Carvalho, Marcelo Rodrigues

    2013-01-01

    Epibranchials are among the main dorsal elements of the gill basket in jawed vertebrates (Gnathostomata). Among extant fishes, chondrichthyans most resemble the putative ancestral condition as all branchial arches possess every serially homologous piece. In osteichthyans, a primitive rod-like epibranchial 5, articulated to ceratobranchial 5, is absent. Instead, epibranchial 5 of many actinopterygians is here identified as an accessory element attached to ceratobranchial 4. Differences in shape and attachment of epibranchial 5 in chondrichthyans and actinopterygians raised suspicions about their homology, prompting us to conduct a detailed study of the morphology and development of the branchial basket of three ostariophysans (Prochilodus argenteus, Characiformes; Lophiosilurus alexandri and Pseudoplatystoma corruscans, Siluriformes). Results were interpreted within a phylogenetic context of major gnathostome lineages. Developmental series strongly suggest that the so-called epibranchial 5 of actinopterygians does not belong to the epal series because it shares the same chondroblastic layer with ceratobranchial 4 and its ontogenetic emergence is considerably late. This neomorphic structure is called accessory element of ceratobranchial 4. Its distribution among gnathostomes indicates it is a teleost synapomorphy, occurring homoplastically in Polypteriformes, whereas the loss of the true epibranchial 5 is an osteichthyan synapomorphy. The origin of the accessory element of ceratobranchial 4 appears to have occurred twice in osteichthyans, but it may have a single origin; in this case, the accessory element of ceratobranchial 4 would represent a remnant of a series of elements distally attached to ceratobranchials 1–4, a condition totally or partially retained in basal actinopterygians. Situations wherein a structure is lost while a similar neomorphic element is present may lead to erroneous homology assessments; these can be avoided by detailed morphological and

  1. Importance of dam-free stretches for fish reproduction: the last remnant in the Upper Paraná River

    Directory of Open Access Journals (Sweden)

    Jislaine Cristina Silva

    2017-12-01

    Full Text Available Abstract Aim: This study uses the abundance of fish eggs and larvae to evaluate the importance of the main channel of the Paraná River and the adjacent areas of the floodplain, in the last dam-free stretch in the Brazilian territory, for the spawning and development of fish of different reproductive guilds, in order to obtain subsidies to assist in the management and conservation policies of this area, focusing on the maintenance of dam-free areas. Methods Data were taken quarterly from August 2013 to May 2015, in 25 sites, grouped into three biotopes: main channel, tributaries and lagoons. Possible spatial variations in fish spawning and development as well as composition and structure of larvae were evaluated. Results Higher densities of eggs were found in tributaries (Paracaí and Amambai rivers and greater densities of larvae were observed in lagoons (Saraiva. Significant differences in composition and structure of larvae were detected only between sampling stations. As for taxonomic composition, 29 taxa were recorded, mostly non-migratory. However, long-distance migratory were also widely distributed, such as Brycon orbignyanus, Pseudoplatystoma corruscans, Prochilodus lineatus, Piaractus mesopotamicus and Rhaphiodon vulpinus, as well as invasive species Platanichthys platana and Hemiodus orthonops. In turn, Salminus brasiliensis presented low occurrence. Conclusions This study evidenced that different species spawn in the region, mainly in tributaries, and their eggs and larvae are transported to the main channel of the Paraná River and adjacent lagoons, to complete their early development. The capture of larvae of important migratory species suggests that this environment still exhibits suitable conditions for their reproduction, mainly due to the presence of dam-free tributaries. Also, they emphasize the importance of the integrity of these environments for the maintenance of the regional fish fauna, and it is extremely important the

  2. Spawning and nursery habitats of neotropical fish species in the tributaries of a regulated river

    Science.gov (United States)

    Makrakis, Maristela Cavicchioli; da Silva, Patrícia S.; Makrakis, Sergio; de Lima, Ariane F.; de Assumpção, Lucileine; de Paula, Salete; Miranda, Leandro E.; Dias, João Henrique Pinheiro

    2012-01-01

    This chapter provides information on ontogenetic patterns of neotropical fish species distribution in tributaries (Verde, Pardo, Anhanduí, and Aguapeí rivers) of the Porto Primavera Reservoir, in the heavily dammed Paraná River, Brazil, identifying key spawning and nursery habitats. Samplings were conducted monthly in the main channel of rivers and in marginal lagoons from October through March during three consecutive spawning seasons in 2007-2010. Most species spawn in December especially in Verde River. Main river channels are spawning habitats and marginal lagoons are nursery areas for most fish, mainly for migratory species. The tributaries have high diversity of larvae species: a total of 56 taxa representing 21 families, dominated by Characidae. Sedentary species without parental care are more abundant (45.7%), and many long-distance migratory fish species are present (17.4%). Migrators included Prochilodus lineatus, Rhaphiodon vulpinus, Hemisorubim platyrhynchos, Pimelodus maculatus, Pseudoplatystoma corruscans, Sorubim lima, two threatened migratory species: Salminus brasiliensis and Zungaro jahu, and one endangered migratory species: Brycon orbignyanus. Most of these migratory species are vital to commercial and recreational fishing, and their stocks have decreased drastically in the last decades, attributed to habitat alteration, especially impoundments. The fish ladder at Porto Primavera Dam appears to be playing an important role in re-establishing longitudinal connectivity among critical habitats, allowing ascent to migratory fish species, and thus access to upstream reaches and tributaries. Establishment of Permanent Conservation Units in tributaries can help preserve habitats identified as essential spawning and nursery areas, and can be key to the maintenance and conservation of the fish species in the Paraná River basin.

  3. Fauna parasitária dos híbridos siluriformes cachapinta e jundiara nos primeiros estágios de desenvolvimento

    Directory of Open Access Journals (Sweden)

    Arlene Sobrinho Ventura

    2013-08-01

    Full Text Available O objetivo deste trabalho foi avaliar a fauna parasitária dos peixes híbridos cachapinta (Pseudoplatystoma corruscans macho x P. reticulatum fêmea e jundiara (Leiarius marmoratus macho x P. reticulatum fêmea no período de larvicultura. Um total de 315 animais, 126 híbridos jundiara e 189 híbridos cachapinta, foram examinados de acordo com o estágio de desenvolvimento: larvas, pós-larvas e alevinos. Larvas e pós-larvas foram prensadas entre lâmina e lamínula e observadas sob microscopia óptica. Os alevinos foram observados externamente em estereomicroscópio e necropsiados para avaliação interna dos órgãos. Foram aferidos os parâmetros de qualidade de água em todas as fases de cultivo. O exame parasitológico revelou a presença dos protozoários Epistylis sp. e Trichodina sp., no tegumento e nas brânquias, Ichthyophthirius multifiliis no tegumento, dos helmintos Monogenea nas brânquias, e das metacercárias de digenéticos em brânquias, baço, rins, fígado e intestino, em ambos os híbridos analisados. Os parasitos Epystilis sp., Trichodina sp. e metacercária de digenéticos ocorrem com maior frequência nos dois híbridos, nas fases de pós-larvas e alevinos. Há maior prevalência e diversidade de parasitos na fase de alevinagem dos híbridos estudados.

  4. Obtención de secuencias microsatelitales especie especificas para Plagioscion magdalenae (Pisces:Sciaenidae

    Directory of Open Access Journals (Sweden)

    Natalia Juliana Bayona-Vásquez

    2007-08-01

    en la parte baja de la cuenca del río Magdalena y en la cuenca del río San Jorge, Colombia, en donde cada vez su comercialización cobra fuerza debido al desplazamiento y disminución en los volúmenes de captura de otras especies como el bagre rayado y bocachico. Lo cual ha llevado a la comúnmente llamada pacora a catalogarse en estado de vulnerabilidad en las cuencas colombianas. Lo anterior, hace necesario la generación de información que sirva de sustento a programas de conservación y uso sostenible de la especie. Una primera aproximación a las poblaciones de P. magdalenae puede ser hecha a través de marcadores moleculares microsatelitales, útiles en trabajos de genética de poblaciones, conservación y manejo de recursos biológicos. Sin embargo, la principal dificultad de los microsatélites es que deben ser aislados de novo para aquellas especies que van a ser evaluadas por primera vez, lo que lleva a la necesidad de obtener primers para la especie. En este trabajo, inicialmente se obtuvo un ADN de buena calidad útil para amplificaciones a partir de muestras de músculo colectadas en cuatro puntos de la cuenca del río San Jorge; posteriormente, se aislaron primers microsatelitales especie-específicos para P. magdalenae mediante amplificación cruzada con primers de otras especies de peces lejanas, entre las cuales se encuentra: Pseudoplatystoma corruscans, Pimelodella chagressi, Prochilodus argenteus y Prochilodus costatus. Para lo anterior, fue necesario modificar y estandarizar protocolos de amplificación mediante cambios en temperatura de alineamiento y concentración de reactivos; y por último se realizó el secuenciamiento de regiones flanqueantes y motivos de repetición en aquellos sistemas que presentaron resultados positivos, de esta forma, se diseñaron primers de regiones microsatélite para la especie. De los trece sistemas evaluados, de las cuatro especies, se obtuvo amplificación positiva de seis. Por medio de la t

  5. El yacimiento arqueológico de la cueva de El Ratón. Una cueva con pinturas en la sierra de San Francisco (Baja California Sur, México). El mural pintado

    OpenAIRE

    Rubio i Mora, Albert

    2012-01-01

    En el planteamiento previo de este trabajo nos propusimos cinco objetivos que hemos desarrollado a lo largo del estudio y que se detallan a continuación. 1) Documentación del mural La documentación gráfica del mural ha consistido en la realización de un calco digital del mural en base al programa Photoshop y con la ayuda de la aplicación DStrech. A partir de la documentación gráfica hemos identificado 194 motivos en distintas categorías de figuras animales, humanas y elementos esqu...

  6. La Vista de San Lorenzo y del Campo Valdés de Gijón: Un cuadro del paisajista Mariano Ramón Sánchez pintado para Jovellanos

    Directory of Open Access Journals (Sweden)

    González Santos, Javier

    2004-12-01

    Full Text Available An unpublished view by Mariano Ramón Sánchez (1740-1822 of the Arenal de San Lorenzo de Gijón (Asturias, in the collection of the Museo Casa Natal de Jovellanos (Gijón is presented here. The painting, dating from 1796, is based on sketches made by the artist at the site in June 1793, and formed a pair with Campiña (probably of the outskirts of Gijón, now lost. In 1796 both paintings were given by the artist to Gaspar Melchor de Jovellanos (1744-1811, magistrate, politician and outstanding intellectual of the Spanish Enlightenment, known to be a collector and man of good taste. These views were inventoried in Jovellanos's house in 1826, thereby demonstrating that they never formed part of the series of landscapes by this artist in the royal collection.

    Se publica una vista inédita del Arenal de San Lorenzo de Gijón (Asturias, propiedad del Museo Casa Natal de Jovellanos (Gijón, hecha por el pintor y académico Mariano Ramón Sánchez (1740-1822 en 1796, teniendo a la vista los apuntes obtenidos sobre el terreno en junio de 1793. El cuadro hacía pareja con una Campiña (probablemente de los alrededores de Gijón no conservada. Ambas pinturas fueron regaladas por el artista a don Gaspar Melchor de Jovellanos (1744-1811, magistrado, político y destacado intelectual de la Ilustración española, y un conocido coleccionista y hombre de gusto, en 1796, en cuya casa de Gijón figuran inventariadas en 1826. Se trata, por tanto, de dos obras de temática paisajista de Sánchez que no formaron parte de la colección real.

  7. Environmental performance of aquaculture in Rondônia state, Brazil

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    Aurélio Ferreira Borges

    2015-04-01

    Full Text Available The objective of this study was to analyze the environmental performance of aquaculture in the city of Colorado do Oeste, Rondônia State, Brazil. Fifteen fish farmers were interviewed. For data collection, structured interviews were carried out, using a questionnaire based on information supplied by the United Nations Food and Agriculture Organization (FAO. The questionnaire considered 12 items, organized into three main topics: a social and legal standards b environmental standards c standards of food safety and hygiene. The questionnaire considered 12 items, organized into three main topics: a social and legal standards b environmental standards c standards of food safety and hygiene. Aquaculture in the city of Colorado do Oeste, Rondônia presents two fish production systems: extensive and semi-intensive. In the semi-intensive system, stocking rate was one fish per m3, on average; tambaqui (Colossoma macropomum, tilapias (Oreochromis spp., pirarucu (Arapaima gigas and pintado (Pseudoplatystoma spp. were the species farmed at the largest number. The rate of water renewal was due to the greater availability of natural food in this system. Water renewal was constant in the ponds (1,500 liters per minute. In the semi-intensive system using dug ponds, alevins were stocked and fed during the entire rearing time with natural and exogenous food. The extensive system relied on the natural production of the pond, with stocking density limited by the production of natural food. The little renewal of water made the cultivation tank itself acted as a decantation lake, with the occurrence of oxidation and sedimentation of residual organic matter, consisting of feces, debris and organic fertilizer. Production of reduced effluent volume took place in the extensive system, compared to the cultivation area. In addition, there was high water turbidity, caused by high concentration of planktonic organisms, and low concentrations of dissolved oxygen in the water

  8. Hydroniumjarosite, (H.sub.3./sub.O).sup.+./sup.Fe.sub.3./sub.(SO.sub.4./sub.).sub.2./sub.(OH).sub.6./sub., from Cerros Pintados, Chile: single-crystal X-ray diffraction and vibrational spectroscopic study

    Czech Academy of Sciences Publication Activity Database

    Plášil, Jakub; Škoda, R.; Fejfarová, Karla; Čejka, J.; Kasatkin, A.V.; Dušek, Michal; Talla, D.; Lapčák, L.; Machovič, V.; Dini, M.

    2014-01-01

    Roč. 78, č. 3 (2014), s. 535-547 ISSN 0026-461X R&D Projects: GA ČR GP13-31276P Grant - others:AV ČR(CZ) Praemium Academiae Institutional support: RVO:68378271 Keywords : hydroniumjarosite * H3O + * crystal structure * vibrational spectroscopy * X-ray diffraction Subject RIV: DB - Geology ; Mineralogy Impact factor: 2.026, year: 2014

  9. Diagnóstico de la situación actual de la mecánica automotriz en el sector de la chapistería en la ciudad de Azogues y elaboración de una propuesta técnica del pintado de automóviles utilizando nuevas tecnologías con el menor impacto ambiental

    OpenAIRE

    Cárdenas Sánchez, Andrés Eduardo; Tapia Quinteros, Fausto Daniel

    2011-01-01

    Observando el servicio de chapa y pintura que se oferta en la ciudad de Azogues se pudo notar la deficiencia técnica que tiene este sector de la Mecánica Automotriz, por lo que la presente tesis se enfoca hacia el diagnóstico de la Mecánica Automotriz en lo referente a chapistería para conocer exacta mente cual es la situación actual de la misma y poder implementar procesos técnicos para el desarrollo de esta actividad. El análisis también se enfoca al cuidado y protección del medio ambien...

  10. Las pinturas esquemáticas de Quizáns y Cueva Palomera (Alquézar. Huesca

    Directory of Open Access Journals (Sweden)

    Vicente BALDELLOU

    2009-10-01

    Full Text Available Desde 1978, el Museo Arqueológico Provincial de Huesca viene organizando una serie de expediciones sistemáticas en el alto curso del rio Vero(Huesca, dentro de un programa preestablecido de prospección integral del sector, cuyo fin es la localización de nuevos covachos pintados.

  11. Biology and reproductive capacity of Spodoptera eridania (Cramer) (Lepidoptera, Noctuidae) in different soybean cultivars

    OpenAIRE

    Favetti,Bruna Magda; Butnariu,Alessandra Regina; Foerster,Luís Amilton

    2015-01-01

    This study aimed to evaluate the development, survival and reproductive capacity of Spodoptera eridania in four soybean cultivars. The experiment was conducted in the laboratory, in a climatic chamber at 25 degrees C +/- C, 70 +/- 10% relative humidity and 12 h photophase. The cultivars used were: FMT Tabarana, BRS/MT Pintado, FMT Tucunare and Monsoy 8757, all conventional cultivars with medium cycles. All cultivars tested allowed the development of S. eridania. However, Monsoy 8757 was the c...

  12. Iglesia en Hoorn, Holanda

    Directory of Open Access Journals (Sweden)

    Van Oerle-Schrama-Bos, Arquitectos

    1968-02-01

    Full Text Available This church has room for 862 persons and has been designed in accordance with the most recent liturgical practice. The basic constructional elements are reinforced concrete, and untreated or white painted brick. The inner design seeks mainly to achieve a diaphanous and luminous environment.Tiene una capacidad de 862 asientos, y ha sido realizada de acuerdo con los más modernos principios litúrgicos. Los elementos fundamentales de construcción han sido el hormigón armado y el ladrillo visto, en su color o pintado de blanco. En su interior se ha atendido primordialmente a conseguir un ambiente claro y luminoso.

  13. Abundancias químicas de ψ Octantis

    Science.gov (United States)

    Medina, M. C.; Pintado, O. I.

    Se determinan las abundancias químicas de ψ Oct usando espectros obtenidos con EBASIM en CASLEO. Los valores iniciales de temperatura efectiva y gravedad superficial se calculan con la fotometría uvbyβ. Esta estrella fue estudiada por Pintado y Adelman (1996) usando espectros REOSC y Adelman y otros (1993), este último basado en espectros echelle obtenidos con el Telescopio Anglo Australiano. Comparamos nuestros resultados con los de los trabajos anteriormente mencionados, pudiéndose realizar una evaluación de la calidad de los espectros EBASIM.

  14. Del Charco del Agua Amarga (Alcañiz

    Directory of Open Access Journals (Sweden)

    Tomás MAIGI

    2009-10-01

    Full Text Available En agosto de 1947, habiendo llegado a la excelentísima Diputación Provincial de Teruel rumores de recientes deterioros en el friso pintado del abrigo rupestre del "Charco del Agua Amarga", nos fué requerida oficialmente, por dicha Corporación, la presentación de un informe sobre la realidad de los hechos expuestos, así como el planeamiento de las medidas adecuadas para salvaguardar en forma eficaz, en el futuro, las referidas pinturas.

  15. Ecuación de la vida

    OpenAIRE

    Garcia Nassar, Rodolfo Jose

    2015-01-01

    — Es igual a la lluvia, producto de un día nublado, frío y mal calcado. Un dibujo mal hecho, un guión mal escrito, un retrato mal pintado. — ¿De qué hablas? — La vida. — La vida no es un retrato. — Es lo que quiero que sea. — Es lo que quieres ver de la vida. Ciego a lo que quieres no significa que sea lo que quieres que sea. — Bien. Pues observa. Haré de ella lo que pueda para que sea lo que quiera. — ¿Y si fallas?

  16. ESTUDIO DE LA PROTECCIÓN ANTICORROSIVA SOBRE ACERO DE BAJO CARBONO MEDIANTE TRATAMIENTO DE CONVERSIÓN QUÍMICA BASE CERIO COMO PREPARACIÓN DE SUPERFICIE

    OpenAIRE

    MATA GALLARDO, LUIS JAIME

    2014-01-01

    En este trabajo, se propone un tratamiento de conversión química base cerio sobre acero de bajo carbono para obtener un incremento en las propiedades de protección y ser utilizado como una preparación de superficie para un pintado posterior. El nitrato de cerio fue elegido como precursor y se utilizaron tres métodos para la obtención de películas sobre la superficie de acero al carbono. Las películas son formadas utilizando o no el H2O2, sin embargo, el papel del H2O2 es el de ...

  17. Study of technical and economic methods for improving anthracite washing. Estudio de las posibilidades tecnico-economicas de la mejora del lavado de carbones de antracita

    Energy Technology Data Exchange (ETDEWEB)

    1988-10-01

    This project was conceived and financed by Ocicarbon in order to help improve methods for washing indigenous anthracite with the aim of maximising its economic and energy benefits. The project has been carried out jointly by the National Institute for Coal and its subsidiaries, Francisco Pintado Fe, and ENADIMSA (Adaro Mining Research). The article summarises the programme of work and the results obtained. The project was divided into three phases: selection; technical analysis of the plant; and a basic engineering and feasibility study. 4 tabs.

  18. A new species of small-eared shrew from Colombia and Venezuela (Mammalia: Soricomorpha: Soricidae: Genus Cryptotis)

    Science.gov (United States)

    Woodman, N.

    2002-01-01

    Populations of small-eared shrews inhabiting the northern Cordillera Oriental of Colombia and adjoining Venezuelan highlands in the vicinity of Paramo de Tama have been referred alternatively to Cryptotis thomssi or Cryptotis meridensis. Morphological and morphometrical study of this population indicates that it belongs to neither taxon, but represents a distinct, previously unrecognized species. I describe this new species as Cryptotis tamensis and redescribe C. meridensis. Recognition of the population at Paramo de Tama as a separate taxon calls into question the identities of populations of shrews currently represented only by single specimens from Cerro Pintado in the Sierra de Perija, Colombia, and near El Junquito in the coastal highlands of Venezuela.

  19. Weathering resistance of thin plasma polymer films on pre-coated steel =

    Science.gov (United States)

    Serra, Ricardo Gil Henriques

    O trabalho apresentado teve origem no projecto de investigacao “Tailored Thin Plasma Polymers Films for Surface Engineering of Coil Coated Steel”, financiado pelo Programa Europeu ECSC Steel Research. Sistemas de aco galvanizado pre-pintado em banda a base de poliester e poliuretano foram submetidos a um processo de polimerizacao por plasma onde um filme fino foi depositado de modo a modificar as propriedades de superficie. Foram usados reactores de catodo oco, microondas e radio frequencia para a deposicao do polimero fino. Os sistemas preparados foram analisados de modo a verificar a influencia do processo de polimerizacao por plasma na alteracao das propriedades barreira dos sistemas pre-pintados em banda. Foi estudado o efeito dos diferentes passos do processo de polimerizacao por plasma, bem como o efeito de diferentes variaveis operatorias. A mistura precursora foi variada de modo a modificar as propriedades da superficie de modo a poder vir a obter maior hidrofobicidade, maior resistencia a marcas digitais, bem como maior facilidade de limpeza. Os testes foram conduzidos em solucao de NaCl 0,5 M. Para o trabalho foram usadas tecnicas de analise da morfologia da superficie como Microscopia de Forca Atomica e Microscopia Electronica de Varrimento. As propriedades electroquimicas dos sistemas foram estudadas por Espectroscopia de Impedancia Electroquimica. A estrutura dos filmes gerados no processo de polimerizacao por plasma foi caracterizada por Microscopia de Transmissao Electronica. A modificacao das propriedades opticas devido ao processo de polimerizacao por plasma foi tambem obtida.

  20. Parasitofauna de cachara cultivado em tanque-rede no rio Paraguai

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    Gabriela Tomas Jeronimo

    2013-08-01

    Full Text Available O objetivo deste trabalho foi descrever a fauna parasitária de cachara (Pseudoplatystoma reticulatum cultivado em tanque-rede, no rio Paraguai. Dez peixes com peso médio de 598,0±81,3 g e comprimento total médio de 38,6±1,6 cm foram examinados. Todos os peixes necropsiados apresentaram infestação por pelo menos duas espécies de parasitos. Entre os parasitos, foram encontrados Ichthyophthirius multifiliis (Ciliophora, Myxobolus sp. e Henneguya sp. (Myxozoa, Monogenoidea, Choanoscolex abscissus e Nominoscolex sudobim (Cestoda, Dolops carvalhoi (Crustacea e Digenea. O protozoário Ichthyophthirius multifiliis foi o parasito com maior prevalência.

  1. Records of new localities and hosts for crustacean parasites in fish from the eastern Amazon in northern Brazil.

    Science.gov (United States)

    Oliveira, Marcos Sidney Brito; Corrêa, Lincoln Lima; Oliveira Ferreira, Drielly; Neves, Lígia Rigor; Tavares-Dias, Marcos

    2017-06-01

    The aim of this study was to investigate parasites crustacean fauna in Arapaima gigas , Cichla monoculus , Cichla ocellaris , Cichla jariina , Satanoperca jurupari , Leporinus friderici , Leporinus fasciatus , Hoplias malabaricus , Phractocephalus hemioliopterus , Serrasalmus altispinis , Pseudoplatystoma tigrinum and Potamotrygon motoro of the State Amapá and Pará, in northern Brazil. A total of 242 parasites, including Argulus elongatus , Argulus multicolor, Argulus juparanaensis , Argulus nattereri , Dolops discoidalis , Dolops longicauda , Braga patagonica , Braga fluviatilis , Livoneca guianensis and undetermined Lernaeidae, were collected from these hosts. The Argulus species had the greatest richness among the community of parasitic crustaceans. There was a low abundance of parasites among the hosts, other than D. discoidalis , was most abundant in the integument of A. gigas and P. tigrinum . Finally, the present study reported nine new hosts for the crustacean parasite species and expanded knowledge of the occurrence of some parasite species in the Jari River basin, in eastern Amazon.

  2. Grabados Rupestres de Carros y Ruedas en Vegas de Coria (Cáceres

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    María Carmen SEVILLANO SAN JOSÉ

    2009-10-01

    Full Text Available Presentamos un nuevo petroglifo inédito aparecido en la localidad de Vegas de Coria en la provincia de Cáceres. Interesada en el tema de estas piedras con grabados, y siguiendo las indicaciones de mis compañeros Fernando Alonso y Javier Fortea, que habían visto personalmente este nuevo petroglifo, nos presentamos en la localidad de Vegas de Coria acompañada del primero de ellos. Al llegar al citado pueblo, los naturales dieron muestras enseguida de conocer el petroglifo, que ellos denominan «la piedra pinta». Nos lo describieron diciendo que tenía soles y estrellas pintados y que muchas veces se habían sentado encima de él.

  3. Omega-3 fatty acids in baked freshwater fish from south of Brazil.

    Science.gov (United States)

    Andrade, A D; Visentainer, J V; Matsushita, M; de Souza, N E

    1997-03-01

    Lipid and fatty acid levels in the edible flesh of 17 baked freshwater fish from Brazil's southern region were determined. Analyses of fatty acids methyl esters were performed by gas chromatography. Palmitic acid (C16:0) was the predominant saturated fatty acid, accouting for 50-70% of total saturated acids. Linoleic acid (C18:2 omega 6), linolenic acid (C18:3 omega 3), and docosahexaenoic acid (C22:6 omega 3) were the predominant polyunsatured fatty acids (PUFA). The data revealed that species such as barbado, corvina, pintado, and truta were good sources of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), and that most freshwater fish examined were good sources of PUFA-omega 3.

  4. Biology and reproductive capacity of Spodoptera eridania (Cramer (Lepidoptera, Noctuidae in different soybean cultivars

    Directory of Open Access Journals (Sweden)

    Bruna Magda Favetti

    2015-06-01

    Full Text Available This study aimed to evaluate the development, survival and reproductive capacity of Spodoptera eridania in four soybean cultivars. The experiment was conducted in the laboratory, in a climatic chamber at 25 °C ± 1 °C, 70 ± 10% relative humidity and 12 h photophase. The cultivars used were: FMT Tabarana, BRS/MT Pintado, FMT Tucunaré and Monsoy 8757, all conventional cultivars with medium cycles. All cultivars tested allowed the development of S. eridania. However, Monsoy 8757 was the cultivar that most affected the prolonged in the duration larval, pupal and total cycle, showed lower pupal weight as well as reduction in the intrinsic rate increase. These results contribute to the management of this species in regions of outbreaks in soybean areas.

  5. El cuerpo humano como símbolo en el Jardín de las delicias: el tríptico de el bosco x la película de Carlos Saura

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    Raquel Segovia Martín

    1996-12-01

    Full Text Available Cuando en España se menciona El jardín de las delicias, lo primero que a uno le viene a la mente es el tríptico que pintó el holandes Hieronymus Bosch, más conocido como El Bosco, en el siglo XVI. Pero además de este cuadro, que actualmente se encuentra en el Museo del Prado de Madrid, hay otras dos obras con el mismo título en este país: una es la pieza literaria de Francisco Ayala titulada El jardín de las delicias. El tiempo y yo y la otra, una película del realizador Carlos Saura, que es en la que voy a centrar precisamente mi interés a fin de estudiar las conexiones que existen entre ella y el cuadro pintado por El Bosco.

  6. Hallazgo de dos nuevos bisontes en la cueva de Altxerri (Aia, País Vasco.

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    J. Altuna

    1996-01-01

    Full Text Available Se describen dos nuevos bisontes pintados, decubiertos, en la cueva de Altxerri en un lugar de difícil acceso, por construir una sima. Esta sima da origen a una larga galería, que pudo ser decorada fácilmente una vez haber accedido al fondo de la sima, pero las figuras rupestres se limitan a los ejemplares del comienzo de la citada galería. Se describe también otro conjunto de pintura de estilo y técnica distinta al resto de las figuras de Altxerri, decubierto anteriormente y situadas en una galería superior a la del conjunto rupestre principal.

  7. LA CUEVA CHIQUITA O DE ÁLVAREZ (CAÑAMERO, CÁCERES: RECIENTES INTERVENCIONES Y REVISIÓN DE SUS MANIFESTACIONES RUPESTRES

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    José Julio García Arranz

    2011-10-01

    Full Text Available Las labores de limpieza sistemática efectuadas en los paneles pintados y grabados de la Cueva Chiquita (Cañamero, Cáceres durante los meses de junio y julio de 2008 con el fin de acondicionar su interior y entorno para la visita pública, acompañadas de los oportunos sondeos arqueológicos y análisis de pigmentos, han posibilitado la revisión y recuperación para el público de uno de los conjuntos de pintura rupestre esquemática más tempranamente conocidos y más notables de la Alta Extremadura. En el presente trabajo se detallan las principales conclusiones de estos nuevos estudios operados en el abrigo, junto a una relectura de sus figuraciones rupestres favorecida por la mejora de su visibilidad.

  8. Nuevos hallazgos de arte parietal y mobiliar en la cueva de La Cullalvera (Ramales de la Victoria, Cantabria

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    Yolanda DÍAZ

    2012-07-01

    Full Text Available Las actuaciones arqueológicas realizadas en el vestíbulo de la cueva de La Cullalvera con motivo de los trabajos para el acondicionamiento turístico de la cavidad han posibilitado el descubrimiento de una nueva pintura rupestre, que representa una figura de caballo en rojo. También se han hallado algunas piezas de arte mueble, entre las que destaca un fragmento de plaquita decorada con motivos claviformes que presentan un paralelismo indudable con el conjunto de signos claviformes pintados en rojo en el interior de la cueva. Las características formales y estilísticas de los hallazgos apuntan a una cronología magdaleniense.

  9. Retratos de hombres infames/Portraits of infamous men

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    Carlos Pérez Vaquero

    2011-01-01

    Full Text Available El artículo se encarga de mostrar la historia de estos retratos, mencionando algunos casos similares antes de que se realizara esta tradición, explica también, el motivo por el cual debían de ser pintados y la manera en la que serían usados, además nombra a varios artistas que se encargaban de realizar esta tarea. También cuenta algunas leyendas en torno a los pintores de la infamia, así como una peculiar anécdota en Italia y retrata la manera en la que España realizaba estas mismas pinturas con una pequeña diferencia.

  10. Variação temporal e espacial de ovos e de larvas das espécies de interesse para a pesca na sub-bacia do rio Miranda, Pantanal, Estado do Mato Grosso do Sul, Brasil - DOI: 10.4025/actascibiolsci.v27i3.1314 Temporal and spatial variation of fish eggs and larvae of the main exploited species in the sub-basin of Miranda River, Pantanal wetland, State of Mato Grosso do Sul, Brazil - DOI: 10.4025/actascibiolsci.v27i3.1314

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    Keshyiu Nakatani

    2005-03-01

    Full Text Available Foi analisada a variação temporal de ovos e de larvas das principais espécies exploradas no Pantanal: Piaractus mesopotamicus; Prochilodus lineatus; Salminus maxillosus; Leporinus macrocephalus e Pseudoplatystoma spp., no rio Miranda. As coletas foram realizadas nos meses de outubro a março, quinzenalmente, de 1996 a 1999. O rio foi dividido em trecho superior, médio e inferior, com 15 pontos de coleta. Foram utilizadas rede de plâncton cônico-cilindrica, com fluxômetro, e as amostras fixadas em formol 4%. Para a identificação, utilizaram-se características morfológicas e merísticas, grau de flexão da notocorda e elementos da nadadeira caudal. No primeiro período, foram capturadas 5.979 larvas e 1.075 ovos; no segundo, 108.912 larvas e 1.836 ovos; no terceiro, 13.465 larvas e 1.855 ovos. A ANOVA, entre os anos e trechos do rio, foi significativa (F= 6.5, p >0,05 no trecho médio, indicando que a reprodução ocorre do trecho médio para o superior, nos meses de novembro a janeiroThe aim of this study was to analyze temporal variation of fish eggs and larvae of the main exploited species in Miranda river, Pantanal wetland (Piaractus mesopotamicus, Prochilodus lineatus, Salminus maxillosus, Leporinus macrocephalus, and Pseudoplatystoma spp., which were collected from October to March, biweekly, from 1996 to 1999. The river was divided into superior, medium and inferior sections, of 15 collection sites. Conical-cylindrical plankton net with a fluxometer and samples fixed in formol 4% were utilized. Morphological and meristic characteristics, notochord flexion degree and caudal fin elements were utilized for identification. A total of 5,979 larvae and 1,075 eggs were collected in the first period; 108,912 larvae and 1,836 eggs in the second; 13,465 larvae and 1,855 eggs in the third. Results showed that ANOVA, between the years and the river stretches, was significant (F = 6.5, p >0.05 in the medium section, which indicates that the

  11. Karyotype variability in neotropical catfishes of the family Pimelodidae (Teleostei: Siluriformes

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    Américo Moraes Neto

    Full Text Available Karyotypic data are presented for four species of fish belonging to the Pimelodidae family. These species show a conserved diploid number, 2n = 56 chromosomes, with different karyotypic formulae. The analyzed species showed little amount of heterochromatin located preferentially in the centromeric and telomeric regions of some chromosomes. The nucleolus organizer regions activity (Ag-NORs and the chromosomal location of ribosomal genes by fluorescent in situ hybridization (FISH, with 18S and 5S probes, showing only one chromosome pair marked bearer of ribosomal genes, the only exception was Pimelodus britskii that presented multiple NORs and syntenic location of the 18S and 5S probes. Non-Robertsonian events, as pericentric inversion and NORs duplication are requested to explain the karyotype diversification in Pseudoplatystoma from the rio Paraguay (MS, Pimelodus from the rio Iguaçu (PR, Sorubim from the rio Paraguay (MS and Steindachneridion from the rio Paraíba do Sul (SP. The obtained data for the karyotype macrostructure of these species corroborates a conserved pattern observed in Pimelodidae. On the other hand, interspecific variations detected by molecular cytogenetics markers made possible cytotaxonomic inferences and differentiation of the species here analyzed.

  12. Genetic variability of broodstocks of restocking programs in Brazil

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    Nelson Lopera-Barrero

    2015-09-01

    Full Text Available Objective. The aim of this study was evaluate the genetic diversity of the following broodstocks: piapara (Leporinus elongatus, dourado (Salminus brasiliensis, jundiá (Rhamdia quelen and cachara (Pseudoplatystoma fasciatum already useful for restocking programs in the Paranapanema, Iguaçu and Paraná Brazilian Rivers. Materials and methods. Samples from the caudal fin of 122 fish were analyzed. DNA was extracted by NaCl protocol. PCR products were separated by a horizontal agarose gel electrophoresis. The fragments were visualized by staining with ethidium bromide. Results. The amplification of 25 primers generated different fragments in studied species that allowed characterizing 440 fragments of 100-2900 bp. High percentage of polymorphic fragments (66.67 to 86.29, Shannon index (0.365 to 0.486 and genetic diversity of Nei (0.248 to 0.331 were detected. Conclusions. The level of genetic variability in the broodstocks was adequate for allowing their use in restocking programs in the studied Rivers. However, periodical monitoring studies of genetic variability in these stocks, the mating system, reproductive system and general management must be made to guarantee the preservation of wild populations.

  13. Purification and characterization of antimicrobial peptides from fish isolate Carnobacterium maltaromaticum C2: Carnobacteriocin X and carnolysins A1 and A2.

    Science.gov (United States)

    Tulini, Fabricio L; Lohans, Christopher T; Bordon, Karla C F; Zheng, Jing; Arantes, Eliane C; Vederas, John C; De Martinis, Elaine C P

    2014-03-03

    Carnobacterium maltaromaticum C2, isolated from Brazilian smoked fish (Surubim, Pseudoplatystoma sp.), was found to exert antimicrobial activity against Listeria monocytogenes, an important foodborne pathogen. In this study, the bacteriocins produced by C. maltaromaticum C2 were purified via an extraction with XAD-16 resin, a C18 solid phase extraction, followed by reversed-phase fast protein liquid chromatography. The purified active fractions were characterized using tandem mass spectrometry, permitting the identification of multiple bacteriocins. Carnobacteriocins BM1, B1, and a variant of carnobacteriocin B2 were all found, providing much of the antilisterial activity. Additionally, we herein report the first isolation of the previously predicted antimicrobial peptide carnobacteriocin X. Moreover, C. maltaromaticum C2 produces a novel two-component lantibiotic, termed carnolysin, homologous to enterococcal cytolysin. This lantibiotic is antimicrobially inactive when tested against the non-bacteriocinogenic strain C. maltaromaticum A9b-, likely requiring an additional proteolytic cleavage to reach maturity. Copyright © 2013 Elsevier B.V. All rights reserved.

  14. FAZENDINHA I: DESCOBERTA DE UM NOVO SÍTIO PRÉ-HISTÓRICO E DESCRIÇÃO PRELIMINAR DE SUAS INSCRIÇÕES RUPESTRES E PROBLEMAS DE CONSERVAÇÃO (Fazendinha I: Discovery of a New Prehistoric Site, Preliminary Description from its Rock Inscriptions, and Conservation Problems

    Directory of Open Access Journals (Sweden)

    Luis Carlos Duarte Cavalcante

    2016-06-01

    Full Text Available O sítio arqueológico conhecido como Fazendinha I, descoberto em 2010, é um abrigo de arenito com inscrições pré-históricas, localizado na área rural de Piripiri, estado do Piauí, Brasil. O abrigo sob-rocha contém uma coleção excepcional de 141 pinturas rupestres e 65 gravuras rupestres. As pinturas rupestres consistem de grafismos geométricos abstratos, carimbos de mãos humanas, zoomorfos (lagartos e ornitomorfos, antropomorfos e fitomorfos, pintados predominantemente em diferentes tonalidades de vermelho, mas também em preto, alaranjado, vinho, púrpura-escuro e marrom-alaranjado. As gravuras rupestres (feitas por picotagem; algumas com acabamento por abrasão representam principalmente cúpules, mas também figuras abstratas e um lagarto (único animal gravado conhecido em todos os sítios pré-históricos da região arqueológica de Piripiri. A vasta maioria das gravuras foi também pintada. Além da elevada densidade de inscrições rupestres, há sobreposições e recorrências dos motivos pintados e gravados. Vegetação, fauna e estado de conservação das inscrições pré-históricas e do abrigo sob-rocha, são mencionados. ENGLISH: The archaeological site known as Fazendinha I, discovered in 2010, is a sandstone shelter with prehistoric inscriptions located in the rural area of Piripiri, in the state of Piauí, Brazil. The rockshelter contains an exceptional collection of 141 rock paintings and 65 rock engravings. The rock paintings consist of abstract geometric graphisms, human handprints, zoomorphs (lizards and ornithomorphs, anthropomorphs and phytomorphs, painted predominantly in different tonalities of red, but also in black, orangish, wine, dark-purple, and orangish brown. The rock engravings (made by pecking; some finished by abrading represent mainly cupules, but also abstract figures and a lizard (the only engraved animal known in all prehistoric sites of the archaeological region from Piripiri. The vast

  15. Modeling of the hydrogen maser disk in MWC 349

    Science.gov (United States)

    Ponomarev, Victor O.; Smith, Howard A.; Strelnitski, Vladimir S.

    1994-04-01

    Maser amplification in a Keplerian circumstellar disk seen edge on-the idea put forward by Gordon (1992), Martin-Pintado, & Serabyn (1992), and Thum, Martin-Pintado, & Bachiller (1992) to explain the millimeter hydrogen recombination lines in MWC 349-is further justified and developed here. The double-peaked (vs. possible triple-peaked) form of the observed spectra is explained by the reduced emission from the inner portion of the disk, the portion responsible for the central ('zero velocity') component of a triple-peaked spectrum. Radial gradient of electron density and/or free-free absorption within the disk are identified as the probable causes of this central 'hole' in the disk and of its opacity. We calculate a set of synthetic maser spectra radiated by a homogeneous Keplerian ring seen edge-on and compare them to the H30-alpha observations of Thum et al., averaged over about 1000 days. We used a simple graphical procedure to solve an inverse problem and deduced the probable values of some basic disk and maser parameters. We find that the maser is essentially unsaturated, and that the most probable values of electron temperature. Doppler width of the microturbulence, and electron density, all averaged along the amplification path are, correspondingly, Te less than or equal to 11,000 K, Vmicro less than or equal to 14 km/s, ne approx. = (3 +/- 2) x 107/cu cm. The model shows that radiation at every frequency within the spectrum arises in a monochromatic 'hot spot.' The maximum optical depth within the 'hot spot' producing radiation at the spectral peak maximum is taumax approx. = 6 +/- 1; the effective width of the masing ring is approx. = 0.4-0.7 times its outer diameter; the size of the 'hot spot' responsible for the radiation at the spectral peak frequency is approx. = 0.2-0.3 times the distance between the two 'hot spots' corresponding to two peaks. An important derivation of our model is the dynamical mass of the central star, M* approx. = 26 solar masses

  16. Incorporation of 14CO2 by illuminated intact leaves of bean (PHASEOLUS VULGARIS) plants

    International Nuclear Information System (INIS)

    Andrade, A.G. de

    1980-01-01

    Bean plants were grown in hydroponic nutrient solution, maintained in controlled environment. Measurements of the photosynthetic activity using the method of 14 CO 2 incorporation in intact leaves with portable equipment were made on the central leaflet of the first trifoliate leaf except when the effect of leaf age was studied in which case all central leaflets of the same branch were used. The data obtained indicated differences in the photosynthetic efficiency of bean (Phaseolus vulgaris) cultivars. Relative differences in RuDP carboxylase activity in the crude extracts of leaves, leaf area and leaf chlorophyll content were also observed. Rates of 14 CO 2 incorporation at saturating light varied from 14.94 to 22.96 mg CO 2 .dm -2 .h and the 6 studied cultivars could be divided into two classes: Classe 1 (above 20 mg CO 2 .dm -2 .h): Pirata-1, Rosinha G-2, and Pintadinho Precoce; Classe 2 (below 20 mg CO 2 .dm - 2 .h): Carioca, Rosinha Precoce and Pintado. Plants of the same cultivar showed a relatively high variability and a strong dependence in relation to environmental conditions. Differences among cultivars in relation to RuDP carboxylase activity, leaf area and leaf age were correlated to photosynthetic rate. (Author) [pt

  17. Tratamento focal e perifocal contra Aëdes aegypti

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    Milton Moura Lima

    1987-06-01

    Full Text Available Em quatro bairros da cidade do Rio de Janeiro, foram feitos ensaios de tratamento focal com abate granulado a 1 ppm e perifocal com pó molhável de Sumition a 2,5%. Esses tratamentos foram feitos tanto isoladamente quanto em conjunto e, também, associados à aplicação de inseticida a ultrabaixo volume. Os índices prediais, levantados um mês depois de terminado o trabalho, mostraram que o tratamento focal dispensa qualquer medida auxiliar. O tratamento perifocal mostrou-se inócuo e incapaz de impedir o aparecimento de larvas de Aëdes aegypti e de outros insetos, em pneus pintados, na face externa, com Sumition e com Malation.In four districts of the city of Rio dc Janeiro focal treatment essays with granulated Abate at 1 ppm and perifocal treatment essays with wettable powder of Sumithion at 2,5% were performed. These were made either alone or in combination as well as associated to insecticides applied at ultra low volume. The premise indices obtained one month after the treatments indicates that the focal treatment alone is effective, no other addicional methods being necessary. The perifocal treatment is not effective and did not prevent the development of Aedes aegypti larvae and other insects in tires which had their external surface painted with Sumithion and Malathion.

  18. PINTURAS RUPESTRES DO SÍTIO TAMBORIL, BARRAS, PIAUÍ, BRASIL (Rock Paintings from the Tamboril Site, Barras, Piauí, Brazil

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    Sônia Maria Campelo Magalhães

    2015-12-01

    Full Text Available Este artigo apresenta o sítio Tamboril, localizado na área rural do município de Barras, estado do Piauí, Brasil. O sítio arqueológico revelou uma coleção excepcional de grafismos puros, motivos zoomórficos e carimbos de mãos humanas, pintados em diferentes tonalidades de vermelho. Há sobreposições e recorrência dos registros rupestres. A conservação das pinturas é afetada por eflorescências salinas, ação de insetos (particularmente cupins e ninhos de vespas e impacto humano (visitação sem acompanhamento e atividade agrícola nas proximidades. ENGLISH: This paper presents the Tamboril site, located in the rural area of the municipality of Barras, Piauí State, Brazil. The archaeological site revealed an exceptional collection of pure graphisms, zoomorphic motifs, and human handprints, painted in different tonalities of red. There are overlaps and recurrence of rock records. The conservation of these rock paintings is affected by saline efflorescences, insect activity (particularly termites and wasp nests and human impact (unaccompanied visitation and agricultural activity nearby.

  19. Corrosión filiforme del aluminio lacado

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    Bautista, A.

    1996-10-01

    Full Text Available Filiform corrosion is a type of localized corrosion which can affect some painted metals (usually Steel, aluminium and magnesium. It often occurs in specimens exposed to marine environments, and produces protective coating damage and thread-like metal base attack. In the paper a brief review of filiform corrosion on coated aluminium is shown. The survey analyses the role which some factors play in the initiation of the filaments, summarizes their growing mechanism and shows the main proposed solutions to this problem.

    La corrosión filiforme es un tipo de corrosión localizada que puede afectar a algunos metales pintados (normalmente acero, aluminio y magnesio. Suele ocurrir en piezas expuestas a atmósferas marinas, y da lugar al deterioro del recubrimiento protector y a un ataque en forma de filamentos del metal base. En este trabajo se presenta una breve revisión bibliográfica sobre la corrosión filiforme en el aluminio lacado. Igualmente, se analiza el papel que juegan diversos factores en la aparición de los filamentos de corrosión, se resume el mecanismo por el que progresan y se recogen las principales soluciones propuestas para este problema.

  20. RELIGIOSIDAD INSTITUYENTE Y CORPORALIDAD EN LA ICONOGRAFÍA SAGRADA DE LOS EX VOTOS

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    María Lourdes Jacobo Albarrán

    2015-04-01

    Full Text Available En este trabajo nos proponemos analizar algunas significaciones imaginarias instituyentes sobre el milagro acaecido en el cuerpo en los exvotos pictográfico del Santuario de la Virgen de la Concepción de San Juan de los Lagos. Un exvoto es una forma de agradecimiento a la divinidad por un favor recibido, a través de estos se da testimonio de fe Estas expresiones votivas las consideramos propias de una religiosidad instituyente que interpela el monopolio de lo sagrado católico instituido. Se tomaron cien fotografías y se seleccionan 26 se identificaron y analizaron las significaciones imaginarias sobre el cuerpo en la iconografía sagrada del Exvotos de San Juan de los Lagos. Encontramos en nuestra investigación que los exvotos pintados lo imaginario del cuerpo, la enfermedad, y la muerte no son significaciones solamente singulares son al mismo tiempo colectivas. Se trata de un proceso histórico que se registra, por otro lado, subjetivamente como memoria colectiva de los que no tienen voz.

  1. IAC Jabola and IAC Esperança: common bean cultivars for market niches

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    Alisson Fernando Chiorato

    2009-01-01

    Full Text Available In Brazil, the trade of common beans with specialty grains such as Jalo, Bolinha, Jabola, Vermelho, Rajado,Branco, Pintado and Canário is still considered a niche market when compared to the carioca and black grain types.However, the cultivation of these beans has proved promising as an alternative income source for farmers, since it offers adifferentiated and more valuable product. IAC-Jabola and IAC-Esperança were developed by the Instituto AgronômicoCampinas (IAC in view of their excellent grain type, plant size and higher mean yield than the standard control Jalo Precoce.The IAC had these cultivars registered in MAPA/RNC based on results of 24 VCU trials in 2005/2006/2007, in the state of SãoPaulo. The yield of IAC Jabola was 2124 kg ha-1, 2336 kg ha-1, and 2558 kg ha-1, in the rainy, dry and winter seasons,respectively. The IAC- Esperança produced 1718 kg ha-1, 1545 kg ha-1, and 2263 kg ha-1 in the rainy, dry and winter seasons,respectively.

  2. Identification and assessment of water pollution as a consequence of a leachate plume migration from a municipal landfill site (Tucumán, Argentina).

    Science.gov (United States)

    Fernández, Diego S; Puchulu, María E; Georgieff, Sergio M

    2014-06-01

    Landfills constitute potential sources of different pollutants that could generate human health and environmental problems. While some landfills currently work under the protection of a bottom liner with leachate collection, it was demonstrated that migration could take place even yet with these cautions. The purpose of this paper is to assess the pollution caused by a leachate plume from a municipal landfill that is affecting both groundwater and surface waters. The research was carried out at Pacará Pintado landfill in northwestern Argentina. Analysis of water samples indicates that leachate is affecting groundwater under the landfill area and an abandoned river channel hydraulically connected. In the center of the landfill area, the plume is anoxic and sulfate, nitrate, iron and manganese reduction zones were identified. Leachate plume presented high concentration of organic matter, Fe, Mn, NH(4)(+), Cl(-) and Cr reaching an extension of 900 m. The presence of a leachate plume in a landfill site with a single liner system implies that the use of this groundwater pollution control method alone is not enough especially if permeable sediments are present below.

  3. Resposta de Euphalerus clitoriae (Hemiptera: Psyllidae a armadilhas adesivas de diferentes cores Response of Euphalerus clitoriae (Hem: Psyllidae to adhesive traps of different colors

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    Mariângela Guajará

    2004-02-01

    Full Text Available Retângulos de alumínio, medindo 10 x 24,5 cm, pintados de branco, vermelho, azul e amarelo, foram revestidos com cola incolor e inodora e dispostos no campo, entre árvores de Clitoria fairchildiana, para verificação da responsividade dos adultos de E. clitoriae às diferentes cores. Retângulos transparentes, de iguais dimensões, foram utilizados como controle. O número significativamente superior de adultos atraídos e capturados pelas armadilhas amarelas, em comparação com as demais, indica uma resposta orientada, sendo elas, portanto, recomendadas para o monitoramento de adultos de E. clitoriae.Aluminum rectangles measuring 10 x 24.5 cm and painted white, red, blue and yellow were covered with colorless and scentless glue and disposed in the field among trees of Clitoria fairchildiana, for verification of response of E. clitoriae adults to the different colors. Transparent rectangles of the same dimensions were also used as controls. The number of adults attracted and captured by the yellow traps was significantly greater than that attracted by the other colors, suggesting a color-oriented response. Thus, the yellow adhesive traps are recommended for monitoring of E. clitoriae adults.

  4. Una «Virgen rezando» inédita de Zurbarán

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    Doval Trueba, Mª del Mar

    2003-06-01

    Full Text Available El cuadro con la Virgen rezando que presentamos (Fig. 1 se encuadra perfectamente en el estilo y temática del artista extremeño. Pintado sobre lienzo, desafortunadamente, reentelado, lo que nos impide un análisis más riguroso de la tela, las dimensiones de la obra son 67 x 48 centímetros. Este tamaño nos hace pensar en un encargo de devoción privada. Desconocemos si ha sido objeto de recortes aunque sí se aprecia algún repinte en el fondo oscuro. De ser así podría haber formado parte de una composición con el Niño Jesús y, tal vez, con más figuras pudiéndose tratar de una adoración de los pastores o tema similar. Por lo que se refiere a la temática, el pintor extremeño nos tiene muy acostumbrados a la representación de Crucificados de gran intensidad emocional, de santos aislados, entre los que destaca San Francisco de Asís…

  5. Fishes of the Taquari-Antas river basin (Patos Lagoon basin, southern Brazil

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    FG. Becker

    Full Text Available The aquatic habitats of the Taquari-Antas river basin (in the Patos Lagoon basin, southern Brazil are under marked environmental transformation because of river damming for hydropower production. In order to provide an information baseline on the fish fauna of the Taquari-Antas basin, we provide a comprehensive survey of fish species based on primary and secondary data. We found 5,299 valid records of fish species in the basin, representing 119 species and 519 sampling sites. There are 13 non-native species, six of which are native to other Neotropical river basins. About 24% of the total native species are still lacking a taxonomic description at the species level. Three native long-distance migratory species were recorded (Leporinus obtusidens, Prochilodus lineatus, Salminus brasiliensis, as well as two potential mid-distance migrators (Parapimelodus nigribarbis and Pimelodus pintado. Although there is only one officially endangered species in the basin (S. brasiliensis, restricted range species (21.7% of total species should be considered in conservation efforts.

  6. El arte rupestre esquemático del Arroyo Barbaón (Parque Nacional de Monfragüe, Cáceres: contextualización arqueológica y caracterización de pigmentos

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    Hipólito COLLADO GIRALDO

    2015-01-01

    Full Text Available El Parque Nacional de Monfragüe (Cáceres conserva un importante complejo de arte rupestre formado por más de un centenar de abrigos con pinturas y grabados postpaleolíticos. En el presente trabajo vamos a dar a conocer un avance de las conclusiones obtenidas en las últimas campañas de investigación llevadas a cabo en el sector del cañón del Arroyo Barbaón (Serradilla. En él se ha procedido a la documentación digital de las representaciones pictográficas de sus 29 abrigos. Además, a través de las excavaciones realizadas en el interior de la Cueva del Sapo, que han proporcionado diversos materiales cerámicos y líticos, así como los restos de un hogar, se intenta contextualizar arqueológicamente el conjunto de arte rupestre. Finalmente, el hallazgo en el abrigo Friso del Terror de un fragmento de cuarcita desprendido que conservaba algunos trazos pintados ha permitido realizar análisis para caracterizar el pigmento que fue utilizado en su elaboración. Con estas aportaciones pretendemos una aproximación más precisa a cuestiones como las técnicas de realización, cronología y funcionalidad de la pintura esquemática en este espacio natural cacereño.

  7. Las pinturas rupestres de la Serreta, Cieza (Murcia

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    Miguel Ángel MATEO SAURA

    2009-11-01

    Full Text Available RESUMEN: Desde que fueran descubiertas en 1973, varios han sido los trabajos publicados sobre las pinturas de la cueva de la Serreta. Su parcialidad y unos criterios distintos a los mantenidos por sus autores, nos ha llevado a la realización de un nuevo estudio conjunto de los dos frisos pintados.La principal aportación de estas pinturas es la puesta de manifiesto de la convivencia de dos de los estilos pictóricos más relevantes de la prehistoria hispana como son el naturalista levantino y el esquemático. Rasgos etnográficos y socioeconómicos como son las armas o las estrategias de caza, son otras cuestiones a resaltar en este conjunto ciezano.ABSTRACT: Since the paintings at La Serreta cave were discovered in 1973, several essays about them haven been published. All these essays refer only to some of the paintings, and our opinion on them differs from that held by their authors; for this reason we have decided to carry out a new study on the two friezes as a whole.These paintings reveal, as their main contribution, that the two most outstanding pictorial styles in Spanish prehistory Levantine Naturalism and Schematism, existed concurrently. Some ethnographical, social and economic characteristics, as weapons and hunting techniques, are the other points to bring out in this Ciezan group of paintings.

  8. Entorno de aprendizaje ubicuo con realidad aumentada y tabletas para estimular la comprensión del espacio tridimensional

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    Jorge De la Torre Cantero

    2013-01-01

    Full Text Available En este artículo se analiza la adopción de alternativas digitales a modelos físicos mediante las tecnologías de realidad aumentada y las tabletas multitáctiles. El objetivo es ofrecer un entorno de aprendizaje ubicuo para estimular la comprensión del espacio tridimensional. Para ello se han realizado tres pruebas piloto durante el curso académico 2011-2012, en las que participaron 62 estudiantes de tres ámbitos educativos diferentes de la isla de Tenerife: Grado en Bellas Artes de la Universidad de La Laguna, estudiantes de educación secundaria del IES La Laboral y un grupo de profesores de secundaria de las asignaturas de Arte y Tecnología. El estudio se ha realizado con seis modelos físicos de aluminio pintado. Se ha dispuesto de la versión digital de seis modelos en Realidad Aumentada y en tableta multitáctil. Se ha realizado una valoración global y una valoración específica sobre las tecnologías utilizadas. De los resultados de este estudio se obtiene que ambas tecnologías son alternativas válidas para la sustitución de los modelos físicos en entornos digitales.

  9. Iglesia de San Pío, en Neuss - Alemania Federal

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    Schürmann, J.

    1975-06-01

    Full Text Available This Centre serves a group of housings that surrounds it and consists of the church and other annexes, such as: youth club, kindergarten, library, parish housings, etc. The church is the most noteworthy building. The plan form and the elevations give an impression of great dynamism; the elevations are of unfaced concrete on the outside and painted white on the inside. The roof is an interesting hanging structure, with double bending, reinforced in both directions and covered on the inside and the outside by suitable materials so as to obtain the desired look and the required impermeability.Este Centro sirve a un grupo de viviendas, que lo rodea prácticamente, y consta de iglesia y otros servicios, tales como: club juvenil, jardín de infancia, biblioteca, viviendas parroquiales, etc. La iglesia es el edificio más notable. Tiene planta y alzados de gran movilidad; estos últimos son de hormigón visto al exterior y pintados de blanco al interior. La cubierta es una interesante estructura suspendida, de doble curvatura, armada en los dos sentidos y recubierta por fuera y por dentro de los materiales más idóneos, a fin de conseguir el aspecto apetecido y el aislamiento e impermeabilización necesarios.

  10. La pesca artesanal en la Cuenca del Plata (Argentina y sus implicancias en la conservación de la biodiversidad Artisanal fish at del Plata basin (Argentina and its implications for the biodiversity conservation

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    Juan Miguel Iwaszkiw

    2011-06-01

    Full Text Available El objetivo del presente trabajo es considerar distintos aspectos que surgen del análisis de las exportaciones pesqueras provenientes de la pesca comercial artesanal de la Cuenca del Plata, Argentina. Se trata de identificar aquellos impactos vinculados a las prácticas pesqueras sobre las poblaciones naturales involucradas y los compromisos relacionados con la conservación de la biodiversidad de la ictiofauna de la cuenca. Se analizan 17 años de datos de las pesquerías comerciales artesanales correspondientes al tramo argentino del río Paraná sobre registros oficiales de los productos pesqueros exportados para distintas especies durante el período 1994-2010. Los registros de los productos exportados expresados en toneladas en peso (ton se refieren particularmente a especies autóctonas de gran tamaño e interés comercial como el sábalo (Prochilodus lineatus, la boga (Leporinus obtusidens, la tararira (Hoplias malabaricus, el surubí (Pseudoplatystoma spp., el dorado (Salminus brasiliensis y el patí (Luciopimelodus pati, además de varias especies acompañantes en las capturas como bagres, armados y pejerreyes (Odontesthes bonariensis. Las exportaciones pesqueras muestran un incremento sumamente importante con un total de 331.517 ton para el período 1994-2010. La especie blanco de la pesquería es el sábalo con 88,77 % de las exportaciones totales y le siguen en orden de importancia la tararira con el 4,16 %, la boga con el 3,70 %, el patí con un 1,35 % y otras especies de menor captura. Los países de destino de los productos pesqueros son Brasil, Colombia, Bolivia y Nigeria, entre otros. Sin embargo, desde el 2003, Colombia compra en promedio el 50 % del total de las exportaciones pesqueras de la Argentina. El análisis de los datos históricos de las exportaciones pesqueras (1994-2010 evidencia la necesidad de implementar medidas mas claras sobre el control y manejo de los recursos pesqueros y las posibles implicancias derivadas

  11. Atividade de amilase em quimo de três espécies tropicais de peixes teleostei de água doce Amylase activity in the chyme of three teleostei freshwater fish

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    José Teixeira de Seixas Filho

    1999-01-01

    Full Text Available O objetivo deste trabalho foi determinar a atividade de amilase no quimo presente nos intestinos médio e posterior, ou reto, em três espécies tropicais de peixes Teleostei de água doce: piracanjuba, Brycon orbignyanus (Valenciennes, 1849, piau, Leporinus friderici (Bloch, 1794, onívoros, e surubim, Pseudoplatystoma coruscans (Agassiz, 1829, preferencialmente carnívoro, visando fornecer referência à nutrição para o ajuste da alimentação artificial. As atividades de amilase foram determinadas usando-se kit BIOCLIN com metodologia modificada por CARAWAY (1959. Os resultados monstraram atividade específica média (2106,33 UA/mg para amilase do piracanjuba e foram 91,74% menor em comparação ao piau (25.488,14 UA/mg, ambos de hábito alimentar onívoro, enquanto a atividade específica da amilase para o piracanjuba foi 89,06% menor em relação ao surubim (19.246,80 UA/mg, carnívoro, o qual apresentou atividade específica da amilase 24,49% menor em relação à do piau. Os dados sugerem que a grande diferença da atividade específica de amilase entre o piau e o piracanjuba possui ligação com sua morfometria e o complexo arranjo das pregas da mucosa dos intestinos médio e posterior. Além disso, a atividade de amilase do surubim indica possibilidade de uso de ração contendo carboidratos, porém estudos adicionais são necessários para a avaliação do comportamento dessas espécies na alimentação artificial.The objective of this work was to determine the amylase activity in the chyme present in the medium and posterior intestines or in the rectum of three tropical freshwater Teleostei species: piracanjuba, Brycon orbignyanus (Valenciennes, 1849, piau, Leporinus friderici (Bloch, 1974, omnivorous, and surubim, Pseudoplatystoma coruscans (Agassiz, 1829, preferably carnivorous, aiming to provide nutritional reference data for the adjustment of the artificial feeding systems. The amylase activity was determined by the use of

  12. Rendimentos do processamento e composição química de filés de surubim cultivado em tanques-rede Processing yield and chemical composition of fillets of surubim reared in net cages

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    Denilson Burkert

    2008-07-01

    Full Text Available Neste trabalho foi avaliado o efeito da utilização de três rações comerciais indicadas para alimentação de peixes carnívoros sobre os rendimentos do processamento e a composição de filés de surubim (Pseudoplatystoma sp cultivados em tanques-rede. Os surubins foram cultivados em tanques-rede durante um ano, período em que foram alimentados com três rações contendo 43,5; 42,6 e 42,1% de proteína bruta; 6,3; 8,7 e 4,5% de extrato etéreo e 5.078; 4.931 e 4.994 kcal de energia bruta, respectivamente, em um delineamento inteiramente casualizado, com três tratamentos e três repetições. Em cada tanque, foram selecionados cinco peixes com pesos entre 1.280 e 1.340 g, que foram insensibilizados e sacrificados para determinação dos rendimentos de carcaça com e sem pele, cabeça, filé total, lateral e abdominal, fígado, pele e esqueleto. Amostras de filés laterais e abdominais foram tomadas para análises bromatológicas. Foram avaliados 22 fêmeas e 23 machos, no entanto, não foi observada diferença entre os sexos quanto aos principais rendimentos de processamento. Os rendimentos de filé abdominal e de resíduos com e sem pele diferiram entre as rações. A composição bromatológica dos filés (lateral e abdominal não foi influenciada pelas rações e não diferiu entre os cortes. A utilização de rações comerciais no cultivo não acarretou mudanças na quantidade e na qualidade dos principais cortes do surubim.The objective of this work was to evaluate the effect of three commercial feeds recommended for carnivorous fish on processing yield and fillet composition of surubim (Pseudoplatystoma sp raised in net cages. The surubim fishes were raised in net cages during one year, when were fed three diets with 43.5, 42.6, and 42.1% crude protein; 6.3, 8.7, and 4.5% ether extract and 5,078, 4,931, and 4,994 kcal of gross energy, respectively. Fishes were allotted to a completely randomized design, with three treatments and

  13. DNA BARCODING IKAN HIAS INTRODUKSI

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    Melta Rini Fahmi

    2017-05-01

    Full Text Available Identifikasi spesies menjadi tantangan dalam pengelolaan ikan hias introduksi baik untuk tujuan budidaya maupun konservasi. Penelitian ini bertujuan untuk melakukan identifikasi molekuler ikan hias introduksi yang beredar di pembudidaya dan pasar ikan hias Indonesia dengan menggunakan barcode DNA gen COI. Sampel ikan diperoleh dari pembudidaya dan importir ikan hias di kawasan Bandung dan Jakarta. Total DNA diekstraksi dari jaringan sirip ekor dengan menggunakan metode kolom. Amplifikasi gen target dilakukan dengan menggunakan primer FishF1, FishF2, FishR1, dan FishR2. Hasil pembacaan untai DNA disejajarkan dengan sekuen yang terdapat pada genbank melalui program BLAST. Identifikasi dilakukan melalui kekerabatan pohon filogenetik dan presentasi indeks kesamaan dengan sekuen genbank. Hasil identifikasi menunjukkan sampel yang diuji terbagi menjadi lima grup, yaitu: Synodontis terdiri atas lima spesies, Corydoras: empat spesies, Phseudoplatystoma: tiga spesies, Botia: tiga spesies, dan Leporinus: tiga spesies dengan nilai boostrap 99-100. Indeks kesamaan sekuen menunjukkan sebanyak 11 spesies memiliki indeks kesamaan 99%-100% dengan data genbank yaitu Synodontis decorus, Synodontis eupterus, Synodontis greshoffi, Botia kubotai, Botia lohachata, Rasbora erythromicron, Corydoras aeneus, Gyrinocheilus aymonieri, Eigenmannia virescens, Leporinus affinis, Phractocephalus hemioliopterus. Dua spesies teridentifikasi sebagai hasil hibridisasi (kawin silang yaitu Leopard catfish (100% identik dengan Pseudoplatystoma faciatum dan Synodontis leopard (100% identik dengan Synodontis notatus. Hasil analisis nukleotida penciri diperoleh tujuh nukleotida untuk Synodontis decora, 10 nukleotida untuk Synodontis tanganyicae, 13 nukleotida untuk Synodontis euterus, empat nukleotida untuk Synodontis notatus, dan 14 untuk Synodontis grashoffi. Kejelasan identifikasi spesies ikan menjadi kunci utama dalam budidaya, perdagangan, manajemen, konservasi, dan pengembangan

  14. Determinação do sistema endócrino difuso nos intestinos de três Teleostei (Pisces de água doce com hábitos alimentares diferentes

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    Seixas Filho José Teixeira de

    2001-01-01

    Full Text Available O objetivo do presente trabalho foi o de verificar a presença de células endócrinas nos intestinos médio e posterior, ou reto, e nos cecos pilóricos de três espécies tropicais de peixes Teleostei de água doce com hábitos alimentares diferentes: piracanjuba, (Brycon orbignyanus e piau (Leporinus friderici, onívoro; e surubim (Pseudoplatystoma coruscans, carnívoro. Para tanto, foram utilizados sete exemplares da piracanjuba, com médias de peso e comprimento-padrão de 410,16 ± 66,33 g e 27,42 ± 1,17 cm, respectivamente, 13 exemplares de piau com médias de 77,71 ± 24,31 g e 14,84 ± 1,56 cm de peso e comprimento-padrão, respectivamente; e cinco exemplares do surubim com médias de peso e comprimento-padrão de 309,91 ± 94,23 g e 32,70 ± 1,79 cm, respectivamente. Pode-se constatar a presença de células endócrinas do "tipo aberto" nos segmentos referentes aos intestinos médio e posterior das espécies onívoras e do "tipo fechado" no intestino médio e no reto da espécie carnívora. As células argirófilas foram observadas entre as células absortivas do epitélio intestinal. Os resultados permitem concluir que a presença de células endócrinas nas espécies estudadas pode indicar que estas atuam no mecanismo de controle da absorção dos nutrientes do alimento.

  15. [Nutritional characterization of produced fish for human consumption in Bucaramanga, Colombia].

    Science.gov (United States)

    Perea, Aide; Gómez, Elieth; Mayorga, Yamile; Triana, Cora Yohanna

    2008-03-01

    This research involves the nutritional characterization of the most commonly cultivated fish in the region. The species under study were: Rainbow trout (Salmo gairdnerii), tilapia roja (Oreocliromis sp), cachama blanca (Piaractus brachypomus), bocachico (Prochilodus reticulatus magdalenae) and catfish (Pseudoplatystoma faciatum). A sea fish, coho Salmon (Oncorhynchus kisutch), was used as reference because it is the imported species most used in the region, and it also contains n-3 fatty acids. For each fish sample moisture, ash, protein content, total fat, minerals (iron, calcium and phosphorous) and a fatty acid profile were determined. Results show a total protein content in between 16.4 and 22.6 g/100 g fillet for fresh water fish. Total fat amounts for trout are the highest (8.1 g/100 g fillet), while catfish has the lowest fat content (0.4 g/100 g fillet). Trout was found to be the most important source of n-3 fatty acids (EPA+DHA) and phosphorous, with values ranging from 0.25% to 0.52%, and 250 to 346 mg/100 g fillet, respectively. Catfish and trout exhibited the highest iron content, with values ranging from 3 to 6mg/100 g fillet. Salmon, on the other hand, showed a high n-3 fatty acid content of 1.16% to 2.25%, when compared to fresh water fish. Calcium content is low in all species under scrutiny. Fresh water fish, other than trout, show no significant amount of n-3 fatty acids. However, all of them are a good source of protein. The obtained results allowed to determine the profile of oily acids of produced fish for human consumption in the region, demonstrating that the trout is the species with major quantity of oily acids n-3 specially DHA and of the minerals the phosphorus. Other species (kinds) catfish, bocachico, tilapia and cachama, are not a source of oily acids n-3, but they are an important source of protein.

  16. Mercury in the gold mining district of San Martin de Loba, South of Bolivar (Colombia).

    Science.gov (United States)

    Olivero-Verbel, Jesus; Caballero-Gallardo, Karina; Turizo-Tapia, Alexi

    2015-04-01

    Gold mining is responsible for most Hg pollution in developing countries. The aims of this study were to assess the levels of total Hg (T-Hg) in human hair, fish, water, macrophyte, and sediment samples in the gold mining district of San Martin de Loba, Colombia, as well as to determine fish consumption-based risks for T-Hg ingestion. T-Hg levels were measured by electrothermal atomization and atomic absorption spectroscopy. The overall mean T-Hg level in hair for humans in the mining district of San Martin de Loba was 2.12 μg/g, whereas for the reference site, Chimichagua, Cesar, it was 0.58 μg/g. Mean T-Hg levels were not different when considered within localities belonging to the mining district but differed when the comparison included Chimichagua. T-Hg levels in examined locations were weakly but significantly associated with age and height, as well as with fish consumption, except in San Martin de Loba. High T-Hg concentrations in fish were detected in Pseudoplatystoma magdaleniatum, Caquetaia kraussii, Ageneiosus pardalis, Cyrtocharax magdalenae, and Triportheus magdalenae, whereas the lowest appeared in Prochilodus magdalenae and Hemiancistrus wilsoni. In terms of Hg exposure due to fish consumption, only these last two species offer some guarantee of low risk for Hg-related health problems. Water, floating macrophytes, and sediments from effluents near mining sites also had high Hg values. In mines of San Martin de Loba and Hatillo de Loba, for instance, the geoaccumulation index (I(geo)) for sediments reached values greater than 6, indicating extreme pollution. In short, these data support the presence of a high Hg-polluted environment in this mining district, with direct risk for deleterious effects on the health of the mining communities.

  17. Fishes of the Taquari-Antas river basin (Patos Lagoon basin, southern Brazil Peixes da bacia do rio Taquari-Antas (sistema da Laguna dos Patos, sul do Brasil

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    FG. Becker

    2013-02-01

    Full Text Available The aquatic habitats of the Taquari-Antas river basin (in the Patos Lagoon basin, southern Brazil are under marked environmental transformation because of river damming for hydropower production. In order to provide an information baseline on the fish fauna of the Taquari-Antas basin, we provide a comprehensive survey of fish species based on primary and secondary data. We found 5,299 valid records of fish species in the basin, representing 119 species and 519 sampling sites. There are 13 non-native species, six of which are native to other Neotropical river basins. About 24% of the total native species are still lacking a taxonomic description at the species level. Three native long-distance migratory species were recorded (Leporinus obtusidens, Prochilodus lineatus, Salminus brasiliensis, as well as two potential mid-distance migrators (Parapimelodus nigribarbis and Pimelodus pintado. Although there is only one officially endangered species in the basin (S. brasiliensis, restricted range species (21.7% of total species should be considered in conservation efforts.Os ambientes aquáticos da Bacia do rio Taquari-Antas (Bacia da Laguna dos Patos, sul do Brasil vêm sofrendo considerável transformação, principalmente em razão da implantação de barragens para geração de energia elétrica. Com o objetivo de estabelecer um diagnóstico amplo da ictiofauna da Bacia do Taquari-Antas, realizou-se um inventário das espécies dessa bacia a partir de dados primários e secundários. Foram obtidos 5.299 registros válidos de espécies de peixe na bacia, representando 119 espécies e 519 localidades amostradas. Ocorrem, na bacia, 13 espécies não nativas, seis das quais são oriundas de outras bacias neotropicais. Cerca de 24% de todas as espécies carecem de descrição taxonômica no nível específico. Foram registradas três espécies nativas migradoras de longa distância (Leporinus obtusidens, Prochilodus lineatus e Salminus brasiliensis e

  18. LA NITRATE RAILWAYS CO. LTD.: LA PÉRDIDA DE SUS DERECHOS EXCLUSIVOS EN EL MERCADO DEL TRANSPORTE DE SALITRE Y SU RESPUESTA A ELLA

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    IAN THOMSON

    2005-06-01

    Full Text Available Para la industria salitrera de la árida provincia de Tarapacá, el transporte ferroviario era una necesidad muy cara, costando en una época hasta cien veces el precio por ton-km del transporte marítimo que llevaba el salitre a Europa. Los primeros ferrocarriles para el transporte del salitre nacieron de concesiones del gobierno peruano pero, antes del fin formal de la Guerra del Pacífico, la empresa dueña de las líneas se reconstituyó, en Londres, asumiendo el nombre Nitrate Railways Co. Ltd., conocida en Chile como simplemente el Ferrocarril Salitrero, con mayúsculas. Los directores del Ferrocarril Salitrero consideraron que sus concesiones confiriesen derechos exclusivos, pero, después de una larga batalla legal, el mercado se abrió para otros ferrocarriles salitreros, con minúsculas. Varias fueron las causas de las tarifas caras del Ferrocarril Salitrero en sus primeros años, algunas relacionadas con sus costos intrinsecamente altos, pero influyó su posición monopólica. La competencia que le presentaban los ferrocarriles de Agua Santa y de Junín, a partir de 1894 le obligó a reducir algunas de sus tarifas. Los ferrocarriles de competencia tenían rutas más directas a los puertos, pero cayeron víctimas de la decaída catasrófica de la industria salitrera tarapaquense en 1930, aunque el Ferrocarril Salitrero logró sobrevivir como empresa independiente durante 20 años más, teniendo que disputar el reducido tráfico que había con el nuevamente inaugurado Ferrocarril de Iquique a Pintados, que fue promovido por el Estado para romper el monopolio del Salitrero sobre el transporte de las oficinas del sur y centro de la provincia, la mayoría de las cuales se habían extinguido antes de que entrara en pleno funcionamientoThrough Chile's arid Province of Tarapacá, no navigable rivers flow, and before the advent of mechanized road transport, railways were an expensive necessity for the nitrate industry. Freight rates could be a

  19. Long-term performance of different aluminum alloy designs as sacrificial anodes for rebars

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    de Rincón, O.

    2003-12-01

    Full Text Available This paper presents the performance of various cathodic-protection designs using Aluminum alloys to protect prestressed piles. The results obtained with different system designs (bracelete type-Al/Zn/In alloy, thermosprayed aluminum (3-year evaluation and conventional Al/Zn/In anocies in an epoxy-painted steel bracelet (12-year evaluation, indicated that all of these systems may be used as sacrificial anodes for pile protection. However, the thermosprayed aluminum type can not be used in prestressed concrete piles because the very negative potentials ( < -1100 mV vs. Cu/CuSO4 they supply to the reinforcement could lead to hydrogen embrittlement.

    Este trabajo presenta la realización de varios diseños de protección catódica utilizando aleaciones de aluminio para la protección de pilotes pretensados. Los resultados obtenidos con diferentes diseños (aleación de Al/Zn/In, tipo brazalete y aluminio termorociado (3 años de evaluación y ánodos convencionales de Al/Zn/In colocados en un brazalete de acero pintado con epoxy (12 años de evaluación, indicaron que todos estos sistemas pueden ser utilizados como ánodos de sacrificio para la protección de los pilotes. Sin embargo, el sistema con aluminio termorociado no puede ser utilizado en pilotes de acero pretensado debido al potencial muy negativo alcanzado por la armadura (<-1100 mV vs Cu/CuSO4, lo cual podría inducir a daños por hidrógeno.

  20. Zorrilla, El poeta y el Semanario Pintoresco Español

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    Ricardo de la Fuente Ballesteros

    2008-07-01

    Full Text Available Zorrilla no pudo escapar al éxito del artículo de costumbres en su época, de manera que, en medio del triunfo de este género, Ignacio Boix recaba su colaboración –un trabajo sobre la figura del “poeta”– para su obra Los españoles pintados por sí mismos. Como señala María de los Ángeles Ayala, el escritor vallisoletano va a seguir la modelización del género, dirigiendo sus palabras al lector, manifestando su satisfacción por el encargo que se le ha hecho, etc., todo ello al uso de las fisiologías francesas, al igual que harán sus colegas participantes en esta colección (Blasco, 231-239. El objeto de este estudio no será una retrospectiva sobre lo que supone la aportación de Zorrilla al género, bien escasa por cierto, sino más bien una lectura de este artículo, dentro del contexto del pensamiento literario de los años cuarenta, a la vez que a la luz de la representación que del poeta hace en otros momentos el autor de Don Juan Tenorio, pues se evidencia al comparar este texto con otros que tienen por objeto el mismo personaje que hay una cierta distorsión del mismo. Todo ello contextualizado a través de una de las revistas más significativas del momento: el Semanario Pintoresco.

  1. Pinturas Rupestres Esquemáticas en Fresnedo Taverga (Asturias. Avance de su estudio

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    Manuel MALLO VIESCA

    2009-10-01

    Full Text Available Si desde la Plaza (Teverga se toma la carretera que a través de Puerto Ventana lleva a San Emiliano, de la vecina provincia de León, en el km. 7 se encuentra un corto desfiladero por cuyo fondo discurre serpenteante el río Val de Sampedro que, con fluctuante caudal siempre sujeto a los tributos del deshielo, va excavando la trinchera que le sirve de cauce, paralela al cual y en un plano pocos metros superior, va la mencionada carretera.En el dintel del desfiladero, conocido por el nombre de Estrechura, se abre la boca de Cueva Huertas, bajo la que se sume el río que en su labor cárstica continúa ampliando la ya extensísima red de galerías de esta importante cavidad.La pared izquierda del mencionado desfiladero con verticalidad absoluta en algunas partes y de empinada pendiente en otras, corresponde a las estribaciones del Cordal de la Sobia, en el que se alza como techo geográfico de la zona el Pico de Las Saleras.En el punto kilométrico antes indicado y a la izquierda, un pequeño ramal de carretera lleva al pueblo de Fresnedo, perteneciente a la parroquia de San Salvador de Alesga y desde el que, en dirección SE., se dominan visualmente las descarnadas y abruptas laderas que mueren en blancos y calizos farallones, los cuales corona La Tesa Pezones, primer escalón del cordal. Allí, en esas laderas, es donde se inicia la serie de abrigos pintados, motivo de este trabajo y que fueron descubiertos gracias a la perspicacia y dotes de observación de nuestro buen amigo Maximino Fernández Miranda a quien desde aquí deseamos felicitar muy sinceramente.

  2. Um mundo de cores

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    Elis Artz

    2016-08-01

    Full Text Available A pintura de Elis Artz é feita com muita alma e transborda alegria. A vitalidade de seu trabalho transparece nas cores fortes e nos traços simples e harmoniosos. Confira o trabalho da artista nesta edição da Revista Jangada. ELIS by ELIS Descobri meu talento artístisco e criativo há uns 25 anos. Nasci no Brasil e me mudei para os EUA 10 anos atrás por puro amor. Embora seja psicóloga de formação, o meu apreço pela pintura só cresceu e, com o passar dos anos, a paixão pelas tintas me direcionou a fazer cursos com artistas brasileiros renomados. Já morando nos EUA e com essa grande paixão adormecida, durante anos, decidi me entregar para as cores que sempre me trouxeram alegria e cor para os meus dias. Embora muitas de minhas pinturas tenham ido para minha família e amigos no Brasil, vendi inúmeras outras pelo país através de exposições em galerias de arte. Em 2014, fui uma das artistas em destaque no MTD ART nos Estados Unidos. Minha obra estava dentro de cada ônibus das cidades de Champaign e Urbana e exposta em destaque na Estação de Trem. Em maio de 2015, tive o prazer de ter outro trabalho meu nos outdoors da cidade, destacando a minha tela 'Frida' o ano inteiro e de expor em conjunto com alguns artistas locais no final de outubro. Desde então, tenho pintado cada vez mais e me interessado em divulgar o meu trabalho. E, como diria um amigo meu "Elis, você me mostrou que a vida não é só preto no branco". Ele estava certo.

  3. Nanosílice como carga en la RTV SR usada para cubrir aisladores; Nanosilica as filler in the Room temperature vulcanized silicone rubber used to coat insulators

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    Ignat Pérez Almirall

    2014-04-01

    Full Text Available En el presente trabajo se realiza un estudio sobre la influencia que tiene agregar como carga nanosílice a la goma de silicona vulcanizada a temperatura ambiente (RTV SR, por sus siglas en inglés que es empleada para cubrir aisladores de vidrio o de porcelana. Con este objetivo se observó la dispersión de la nanosílice en la RTV SR por medio de microscopía electrónica de barrido (MEV, por sus siglas en inglés, se midió la permitividad de la RTV SR con y sin nanosílice para varias frecuencias y se evaluó la influencia que tiene la nanosílice en la resistencia a la erosión. Además fueron medidas las corrientes de fuga durante ensayos de niebla salina a aisladores de vidrio pintados con estos recubrimientos, analizando también la pérdida de hidrofobicidad que ocurre durante el ensayo y su recuperación una vez finalizado el mismo.  The present research work carries out a study on the influence of nanosilica on room temperature vulcanized silicone rubber (RTV SR used to coat insulators. Considering this objective, the dispersion of nanosilica was observed by means of scanning electron microscopy (MEV, the permittivity of the room temperature vulcanized silicone rubber was measured with and without nanosilica for different frequencies and the influence of nanosilica in erosion resistance. Leakage currents were also measured during salt spray tests to glass insulators covered with these coatings; the loss of hidrophobicity during the test was also measured and its recovery was analyzed the test was finished.

  4. Nanosílice como carga en la RTV SR usada para cubrir aisladores/ Nanosilica as filler in the Room temperature vulcanized silicone rubber used to coat insulators

    Directory of Open Access Journals (Sweden)

    Ignat Pérez Almirall

    2012-02-01

    Full Text Available En el presente trabajo se realiza un estudio sobre la influencia que tiene agregar como carga nanosílice a la goma de silicona vulcanizada a temperatura ambiente (RTV SR, por sus siglas en inglés que es empleada para cubrir aisladores de vidrio o de porcelana. Con este objetivo se observó la dispersión de la nanosílice en la RTV SR por medio de microscopía electrónica de barrido (MEV, por sus siglas en inglés, se midió la permitividad de la RTV SR con y sin nanosílice para varias frecuencias y se evaluó la influencia que tiene la nanosílice en la resistencia a la erosión. Además fueron medidas las corrientes de fuga durante ensayos de niebla salina a aisladores de vidrio pintados con estos recubrimientos, analizando también la pérdida de hidrofobicidad que ocurre durante el ensayo y su recuperación una vez finalizado el mismo.The present research work carries out a study on the influence of nanosilica on room temperature vulcanized silicone rubber (RTV SR used to coat insulators. Considering this objective, the dispersion of nanosilica was observed by means of scanning electron microscopy (MEV, the permittivity of the room temperature vulcanized silicone rubber was measured with and without nanosilica for different frequencies and the influence of nanosilica in erosion resistance. Leakage currents were also measured during salt spray tests to glass insulators covered with these coatings; the loss of hidrophobicity during the test was also measured and its recovery was analyzed the test was finished.

  5. Cultivares de soja em sucessão ao trigo nos sistemas convencional e plantio direto

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    Alexandre Martins Abdao dos Passos

    2014-10-01

    Full Text Available A adequada escolha de cultivares de soja é preponderante para o máximo desempenho das lavouras. Desta forma, o objetivo do trabalho foi avaliar, durante dois anos agrícolas, a produtividade e alguns atributos agronômicos de cultivares de soja em sistemas de cultivo (plantio direto e convencional em sucessão à cultura de trigo irrigado na região de cerrado do Sul de Minas Gerais. Utilizou-se o delineamento estatístico de blocos ao acaso disposto em parcelas subdivididas, com três repetições, avaliando-se alguns atributos agronômicos de 15 cultivares de soja, semeadas no verão, nas subparcelas. As cultivares testadas, independentes dos anos agrícolas, influenciaram na produtividade de grãos e os atributos agronômicos altura de plantas e de inserção da primeira vagem. No primeiro ano, as cultivares DM 339 e a TMG 103RR apresentaram as maiores produtividades nos dois sistemas de cultivo. No sistema convencional, também sobressaíram-se as cultivares DM Nobre, Monsoy 6101, Conquista e Pintado. Enquanto que Emgopa 313 e Monarca destacaram-se no sistema de plantio direto. No segundo ano, as maiores produtividades foram da Valiosa RR, DM118 e Vencedora variando de 2336 a 2503 kg ha-1. O sistema de cultivo convencional proporcionou aumentos significativos na produtividade de grãos no primeiro ano agrícola. Entretanto, na safra seguinte, os sistemas não diferiram entre si, demonstrando, dessa forma, que o sistema plantio direto ao se consolidar, tende à melhorar as condições produtivas dos agroecossistemas com reflexos positivos sobre a produtividade de grãos da cultura da soja.

  6. Study of plaster finishes on San Pedro de los Francos church at Calatayud

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    Sánchez de Rojas, Mª I

    2007-06-01

    Full Text Available This study of the plaster finishes on San Pedro de los Francos Church at Calatayud revealed, firstly, the stratigraphic sequence based on the interpretation of the bonding interfaces; and secondly, the evolution of placement techniques from mudéjar style textured and painted false stonework (15th century to the smooth plastering and paint typical of later phases. Finally, scanning electron microscope (SEM, energy dispersive X-ray microanalysis (EDX and X-ray diffraction (XRD studies showed that gypsum and anhydrite are the main components of both binder and aggregate in these mortars. In other words, they constitute traditional multiphase plasters whose coarser particles or aggregate were a byproduct of the artisanal manufacturing process.El estudio de los enlucidos de la iglesia de San Pedro de los Francos de Calatayud ha permitido demostrar, en primer lugar, la secuencia estratigráfica mediante la lectura de la interfase de adherencia; en segundo lugar, la evolución de las técnicas de aplicación, desde el enlucido mudéjar, un fingido de piedra agramilado y pintado (siglo XV, hasta los enlucidos lisos y pinturas aplicados posteriormente. Y, finalmente, a través de los estudios de microscopía electrónica de barrido (SEM, microanálisis por energía dispersiva de rayos X (EDX y de difracción de rayos X (DRX, se ha determinado que son morteros en los que tanto el conglomerante como el árido son yeso y anhidrita, que correspondería a un yeso tradicional multifase, cuyos granos más gruesos analizados como áridos proceden del producto obtenido artesanalmente.

  7. The Stringed Drum and the 16th Century Music: New Iconographical Sources

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    Ballester i Gibert, Jordi

    2011-12-01

    Full Text Available The present paper deals with a stringed drum depicted in an anonymous Catalan panel from the mid 16th century. The panel, coming from the church of Barruera (Boí valley, disappeared during the Spanish Civil War and we only have a black and white photography kept in the Institut Amatller d’Art Hispànic in Barcelona. Nevertheless, the study of this depiction shows several aspects related to the instrument and its musical use. Some of these aspects allow us to deal with different hypothesis connecting the stringed drum with the performance practice: on the one hand the instrument appears in a courtly renaissance atmosphere, being played at a banquet; on the other hand the instrument appears not only accompanying the one-hand flute (as it can be seen in other depictions but also making up a consort together with a fiddle.

    El presente artículo se centra en la representación, hasta ahora desconocida, de un tambor de cuerdas pintado en una tabla anónima catalana de mediados del siglo XVI, procedente de la pequeña iglesia de Barruera (Vall de Boí. Dicha tabla desapareció durante la guerra civil española y solo la conocemos a través de una fotografía en blanco y negro que se conserva en el Instituto Amatller de Arte Hispánico (Barcelona. No obstante, el estudio de la representación clarifica algunos aspectos relativos al uso del instrumento que hasta ahora no se habían podido demostrar: por un lado nos sitúa el tambor de cuerdas en el contexto de un banquete cortesano de ambiente renacentista; por otro lado relaciona el instrumento no solo con su acompañante habitual – la flauta de una sola mano – sino también con la viola de arco.

  8. Padrão de identidade e qualidade do tomate (Lycopersicon esculentum Mill. de mesa

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    Ferreira Sila Mary Rodrigues

    2004-01-01

    Full Text Available O valor comercial do tomate, Lycopersicon esculentum Mill., é definido pelas características de identidade e qualidade presentes no fruto que podem ser avaliadas pela classificação do produto. A presente revisão de literatura teve como objetivo descrever o padrão de identidade e qualidade do tomate de mesa, através da classificação. O tomate de mesa é classificado em grupos, subgrupos, classes e tipos. De acordo com o formato do fruto, o tomate é classificado em dois grupos: oblongo, quando o diâmetro longitudinal é maior que o transversal e redondo, quando o diâmetro longitudinal é menor ou igual ao transversal. Em função do estádio de maturação, o tomate é classificado em cinco subgrupos: verde maduro, pintado, rosado, vermelho e vermelho maduro. A classe é definida em função do maior diâmetro transversal do fruto em relação ao grupo a que pertença. O tomate oblongo é classificado em três classes: grande, médio e pequeno. O tomate redondo é classificado em quatro classes: gigante, grande, médio e pequeno. De acordo com os índices de ocorrência de defeitos graves e leves presentes nos frutos, o tomate é classificado também em tipo: extra, especial ou selecionado e comercial. São considerados defeitos graves: podridão, passado, queimado, dano por geada, podridão apical, e defeitos leves: dano, mancha, ocado, deformado e imaturo. A amostra de tomate que ultrapasse os índices de defeitos previstos pela legislação do Ministério da Agricultura é classificada como fora do padrão.

  9. Los grabados y pinturas rupestres de la cueva de El Rincón, en el contexto artístico del desfiladero del río Carranza (Bizkaia-Cantabria

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    César GONZÁLEZ SÁINZ

    2009-12-01

    Full Text Available RESUMEN: La cueva de El Rincón, inmediata a las de Venta de la Perra y El Polvorín, forma parte del grupo de cavidades con manifestaciones parietales paleolíticas del desfiladero del río Carranza. El conjunto rupestre localizado recientemente es tan pequeño como diverso: cuenta con grabados lineales exteriores y, en zonas centrales o de fondo, con tres figuras animales grabadas y algunos motivos pintados en rojo, resto de representaciones desvaídas o, acaso, simples manchas de color. Una figura de ciervo herido facilita algunos paralelos, tanto en lo referido a su construcción y a la perspectiva empleada en las extremidades, como a la morfología inusual del venablo. El estudio que presentamos permite establecer una estrecha vinculación con el arte premagdaleniense de otras cuevas de ese mismo entorno, y facilita una discusión actualizada sobre la modificación temporal en la perspectiva de las representaciones animales durante el Paleolítico superior.ABSTRACT: The Rincón cave, immediate to those of Venta de la Perra and Polvorín, is part of the wide group of cavities with Palaeolithic parietal art of the narrow pass of the Carranza river. The rock art has been located recently and it is as small as diverse: it has external lineal engravings and, in central or background areas, three recorded engraving animals and some paintings in red, maybe rest of faded representations or, simple colour stains. A figure of wounded deer facilitates some parallel referred to its construction and the perspective used in the extremities, or to the unusual morphology of the weapon. This study allows to establish a narrow linking with the premagdalenian art of other caves nearby, and facilitates an up-to-date discussion on the temporary modification in the perspective in animal representations during the Upper Palaeolithic.

  10. Empleo del método electroquímico acelerado AC-DC-AC para la predicción del tiempo de vida útil de pinturas base agua

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    Bethencourt, M.

    2005-12-01

    Full Text Available In this study an accelerated method for the evaluation of painted metals is proposed. Specifically, the proposed method has been applied in a study of the process of degradation of two water-based paints applied to a carbon steel surface. The technique is based on the application of cycles combining measurement of electrochemical impedance spectra, cathodic polarisation steps, and recording of the evolution of the corrosion potential of the system in function of time. The results obtained from this method are compared with those obtained from studying the evolution of the impedance spectra of both systems in function of the time of immersion, for periods of immersion of the order of 200 days.

    En este trabajo se propone un método acelerado de evaluación de metales pintados. Concretamente, el método se ha aplicado al estudio del proceso de degradación de dos pinturas de base agua aplicadas sobre un acero al carbono. El método está basado en la aplicación de ciclos en los que se combinan la medida de espectros de impedancia electroquímica, etapas de polarización catódica y el registro de la evolución del potencial de corrosión del sistema en función del tiempo. Los resultados obtenidos mediante este método se comparan con los obtenidos al estudiar la evolución de los espectros de impedancia de ambos sistemas en función del tiempo de inmersión, para periodos de inmersión del orden de 200 d.

  11. Fish mercury development in relation to abiotic characteristics and carbon sources in a six-year-old, Brazilian reservoir

    Energy Technology Data Exchange (ETDEWEB)

    Tuomola, Leena; Niklasson, Terese [Evolutionary Biology Centre and Department of Limnology, Uppsala University, Norbyvaegen 20, S-752 36 Uppsala (Sweden); Castro e Silva, Edinaldo de [Departamento de Quimica, Universidade Federal de Mato Grosso (UFMT), Av. Fernando C. Costa/sn, 78 090-900 Cuiaba-MT (Brazil); Hylander, Lars D. [Department of Earth Sciences, Air, Water and Landscape Science, Uppsala University, Villavaegen 16, S-752 36 Uppsala (Sweden)], E-mail: Lars.Hylander@hyd.uu.se

    2008-02-01

    Time series on fish mercury (Hg) development are rare for hydroelectric reservoirs in the tropics. In the central-western part of Brazil, a hydroelectric reservoir, called Lago Manso, was completed in 1999 after that background levels of fish Hg concentrations had been determined. The development for the first 3 years was studied in 2002. The objective of the present study was to determine development of fish Hg concentrations for a second three-year period after flooding. The bioaccumulation factor and certain abiotic and biotic factors, possibly affecting the availability and accumulation of Hg, were also examined. The results show that Hg levels in fish from Lago Manso have increased more than five times compared to the background levels observed before construction of the reservoir. At the same time, dissolved organic carbon has increased while dissolved oxygen has decreased indicating enhanced bioavailability of Hg. In the reservoir, Salminus brasiliensis had in average a Hg content of 1.1 {mu}g g{sup -1} f.w., Pseudoplatystoma fasciatum 1.2, Serrasalmus marginatus/spilopleura 0.9, and Brycon hilarii 0.6 {mu}g g{sup -1} f.w. The average fish Hg contents were higher downstream, except for B. hilarii. In the reservoir, the average Hg content of each species was in 2005 always over the consumption limit (0.55 {mu}g total Hg g{sup -1} f.w.) recommended by WHO. Therefore, the people living around Lago Manso should be informed of the health effects of Hg, and fish consumption recommendations should be carried out. The accumulation of Hg varies widely between species as shown by the bioaccumulation factor which ranges between 5.08 and 5.59 log units. The observed variation is explained by differences in diet and trophic position with piscivorous fish exhibiting the highest mean Hg concentration, followed by carnivorous and omnivorous species. Carbon isotope analyses imply that trophic position is not the only cause of the observed differences in Hg levels between

  12. Mercury and selenium in fishes from the Tapajós River in the Brazilian Amazon: An evaluation of human exposure.

    Science.gov (United States)

    Lino, A S; Kasper, D; Guida, Y S; Thomaz, J R; Malm, O

    2018-07-01

    This work aimed to evaluate associated risks of fish consumption to human health, concerning mercury (Hg) and selenium (Se) concentrations in fish species largely consumed in the Tapajós River basin in the Brazilian Amazon. Total mercury (THg), methylmercury (MeHg) and Se concentrations were measured in 129 fish specimens from four sites of the Tapajós River basin. Estimated daily intake (EDI) of Hg and Se were reported regarding fish consumption. EDI were compared with the reference value of provisional tolerable daily intake proposed by the World Health Organization (WHO). Se:Hg ratios and selenium health benefit values (Se HBVs) seem to offer a more comprehensive fish safety model. THg concentrations in fishes ranged from 0.03 to 1.51 μg g -1 of wet weight (w.w.) and MeHg concentrations ranged from 0.02 to 1.44 μg g -1 (w.w.). 80% of the samples were below the value of Hg recommended by the WHO for human consumption (0.5 μg g -1 w.w.). However, Hg EDI exceeded the dose suggested by the United States Environmental Protection Agency (0.1 μg kg -1  day -1 ), due to the large level of fish consumption in that area. Se concentrations in fishes ranged from 0.02 to 0.44 μg g -1 w.w. An inverse pattern was observed between Hg and Se concentrations in the trophic chain (highest levels of Se in the lowest trophic levels). The molar ratio Se:Hg and Se HBVs were higher in iliophagous and herbivorous fishes, which is noteworthy to reduce toxic effects of Hg contamination. For planktivores, the content of Se and Hg was almost equimolar. Carnivorous fishes - with the exception of Hemisorubim platyrhynchos and Pseudoplatystoma fasciatum -, showed Se:Hg ratios <1. Thus, they do not act as a favorable source of Se in the diet. Therefore, reduced intake of carnivorous fishes with preferential consumption of iliophages, herbivores and, to some extent, even planktivores should be promoted as part of a healthier diet. Copyright © 2018 Elsevier GmbH. All

  13. El brocado de estaño en relieve aplicado. Evolución histórica y material en la Europa medieval con atención al arte español (siglos XV-XVI

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    Rodríguez López, Ainhoa

    2014-12-01

    Full Text Available The term applied tin-relief brocade (commonly called applied brocade refers to painted decoration that simulates the velvet and silk brocades made of gold and silver threads commonly used in Europe in the fifteenth and sixteenth centuries. This technique uses a mould, tin leaf, and filling mass to reproduce in a mechanical way the relief motifs of textile brocades. Once cut, they are applied to artwork, and then sometimes gilded or painted. The discovery of many examples of this type of decoration in northern Spain has led us to the study of the documentary sources, especially Spanish ones, with the purpose of improving our understanding of the technique, its historic and material development, and the typology of standardized patterns. Furthermore, this study has provided us with an important glossary of the relief painting additive techniques that culminated in applied tinrelief brocade.El término brocado de estaño en relieve aplicado (comúnmente conocido como brocado aplicado se refiere a una decoración polícroma que imita los brocados de terciopelo y seda hechos con hilos de oro y plata, los cuales dominan el mundo de la moda de Europa en los siglos XV y XVI. Esta técnica reproduce mecánicamente a través de una matriz, lámina de estaño y masa de relleno motivos en relieve de brocados textiles, que, una vez recortados, son aplicados sobre la obra, pudiendo estar en ocasiones dorados y pintados. El hallazgo de más ejemplos de esta decoración en el Norte de España nos ha conducido a analizar las fuentes documentales, especialmente las españolas, con el objetivo de ampliar nuestro conocimiento sobre la técnica en cuestión, su evolución histórica y material y sus diferentes tipologías. Asimismo, dicho estudio nos ha proporcionado un importante glosario de técnicas pictóricas en relieve por adición precursoras del brocado de estaño en relieve aplicado.

  14. Processing ser and estar to locate objects and events

    Science.gov (United States)

    Dussias, Paola E.; Contemori, Carla; Román, Patricia

    2016-01-01

    In Spanish locative constructions, a different form of the copula is selected in relation to the semantic properties of the grammatical subject: sentences that locate objects require estar while those that locate events require ser (both translated in English as ‘to be’). In an ERP study, we examined whether second language (L2) speakers of Spanish are sensitive to the selectional restrictions that the different types of subjects impose on the choice of the two copulas. Twenty-four native speakers of Spanish and two groups of L2 Spanish speakers (24 beginners and 18 advanced speakers) were recruited to investigate the processing of ‘object/event + estar/ser’ permutations. Participants provided grammaticality judgments on correct (object + estar; event + ser) and incorrect (object + ser; event + estar) sentences while their brain activity was recorded. In line with previous studies (Leone-Fernández, Molinaro, Carreiras, & Barber, 2012; Sera, Gathje, & Pintado, 1999), the results of the grammaticality judgment for the native speakers showed that participants correctly accepted object + estar and event + ser constructions. In addition, while ‘object + ser’ constructions were considered grossly ungrammatical, ‘event + estar’ combinations were perceived as unacceptable to a lesser degree. For these same participants, ERP recording time-locked to the onset of the critical word ‘en’ showed a larger P600 for the ser predicates when the subject was an object than when it was an event (*La silla es en la cocina vs. La fiesta es en la cocina). This P600 effect is consistent with syntactic repair of the defining predicate when it does not fit with the adequate semantic properties of the subject. For estar predicates (La silla está en la cocina vs. *La fiesta está en la cocina), the findings showed a central-frontal negativity between 500–700 ms. Grammaticality judgment data for the L2 speakers of Spanish showed that beginners were significantly less

  15. Processing ser and estar to locate objects and events: An ERP study with L2 speakers of Spanish.

    Science.gov (United States)

    Dussias, Paola E; Contemori, Carla; Román, Patricia

    2014-01-01

    In Spanish locative constructions, a different form of the copula is selected in relation to the semantic properties of the grammatical subject: sentences that locate objects require estar while those that locate events require ser (both translated in English as 'to be'). In an ERP study, we examined whether second language (L2) speakers of Spanish are sensitive to the selectional restrictions that the different types of subjects impose on the choice of the two copulas. Twenty-four native speakers of Spanish and two groups of L2 Spanish speakers (24 beginners and 18 advanced speakers) were recruited to investigate the processing of 'object/event + estar/ser ' permutations. Participants provided grammaticality judgments on correct (object + estar ; event + ser ) and incorrect (object + ser ; event + estar ) sentences while their brain activity was recorded. In line with previous studies (Leone-Fernández, Molinaro, Carreiras, & Barber, 2012; Sera, Gathje, & Pintado, 1999), the results of the grammaticality judgment for the native speakers showed that participants correctly accepted object + estar and event + ser constructions. In addition, while 'object + ser ' constructions were considered grossly ungrammatical, 'event + estar ' combinations were perceived as unacceptable to a lesser degree. For these same participants, ERP recording time-locked to the onset of the critical word ' en ' showed a larger P600 for the ser predicates when the subject was an object than when it was an event (*La silla es en la cocina vs. La fiesta es en la cocina). This P600 effect is consistent with syntactic repair of the defining predicate when it does not fit with the adequate semantic properties of the subject. For estar predicates (La silla está en la cocina vs. *La fiesta está en la cocina), the findings showed a central-frontal negativity between 500-700 ms. Grammaticality judgment data for the L2 speakers of Spanish showed that beginners were significantly less accurate than

  16. Mansion Nolan en Worcester Park - Surrey - Gran Bretaña

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    Stout & Litchfield, Arquitectos

    1973-04-01

    Full Text Available The site is the end plot in a cul-de-sac of new houses, in the immediate neighbourhood of an old convent. The house is designed as two identical flats: — on the ground floor the entrance hall, the children's bedrooms, bathroom, dining room and kitchen, — on the first floor the parents bedroom with bathroom suite and living room, both open onto a roof terrace. The walls are constructed of while sandlime bricks with white pointing, cavity and light-weight concrete insulating blocks internally. The roofs are externally clad with natural slate and internally with Columbian Pine boarding. The slope of the roof is exposed internally. Walls are white painted throughout and the floors are covered with grey haircord carpet. The staircase is made of Columbian Pine and is open tread. Heating is by gas fired ducted warm air.Esta vivienda se ha construido en la parcela final de un fondo de saco, situado en las proximidades de un antiguo convento. El edificio consta de dos plantas: - en la baja se han dispuesto, además de la entrada, los dormitorios de los niños, un cuarto de baño, el comedor y la cocina, y - en la primera, el dormitorio de los padres, con cuarto de baño y una sala de estar, abiertos ambos sobre amplias terrazas. Sistema constructivo: muros exteriores construidos con ladrillo blanco, rejuntados con mortero blanco; los muros interiores y huecos se realizaron con placas o bloques de hormigón ligero aislado, pintados de blanco posteriormente. En el interior se respetó la inclinación de la cubierta, revistiéndola con un entablado de pino colombiano; en el exterior se utilizó un recubrimiento de pizarra natural. Los suelos están enmoquetados, con alfombras de pelo, de color gris. La calefacción se consigue por conducciones de aire caliente, producido por estufa de gas.

  17. Where is Gilles? Or, the little mistake in a copy of Brouillet's painting: "A clinical lesson at the Salpêtrière" Onde está Gilles? Ou, o pequeno engano em uma cópia da pintura de Brouillet: "Uma lição clínica na Salpêtrière"

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    Francisco M. B. Germiniani

    2013-05-01

    Full Text Available Professor Jean-Martin Charcot is considered the most important professor of Neurology and also the head of the Salpêtrière School of Neurology. In a famous picture painted by André Brouillet and presented at the Salon of 1887, under the title "A clinical lesson at the Salpêtrière", Professor Charcot presents a case of hysteria to a large audience of physicians and renowned intellectuals. Copies of this guided picture are also available for sale at the shop of the Museum of the School of Medicine of Paris and are frequently used in lectures by neurologists worldwide. However, in these reproductions, Gilles de la Tourette's and Charles Féré's positions are inverted. This historical note sheds some light on this little mistake in some of the reproductions of Brouillet's famous painting, so that further confusion can be avoided.O professor Jean-Martin Charcot é considerado o professor mais importante da Neurologia e também o chefe da Escola de Neurologia de Salpêtrière. Em um quadro célebre pintado por André Brouillet e apresentado no Salão de 1887, sob o título "Uma Lição Clínica na Salpêtrière", o professor Charcot apresenta um caso de histeria a um grande público composto de médicos e intelectuais de renome. Cópias desse quadro também estão disponíveis para venda na loja do Museu da Escola de Medicina de Paris e são frequentemente utilizadas em palestras ministradas por neurologistas em todo o mundo. No entanto, nessas reproduções, Gilles de la Tourette e Charles Féré estão em posições invertidas. Esta nota histórica alerta sobre esse pequeno engano em algumas das reproduções da famosa pintura de Brouillet, a fim de que mais confusão seja evitada.

  18. Uso de modelos mecânicos em curso informal de astronomia para deficientes visuais. Resgate de uma experiência

    Science.gov (United States)

    Tavares, E. T., Jr.; Klafke, J. C.

    2003-08-01

    O presente trabalho propõe-se a resgatar uma experiência que teve lugar no Planetário de São Paulo nos anos 60. Em 1962, o Sr. Acácio, então com 37 anos, deficiente visual desde os 27, passou a assistir às aulas ministradas pelo Prof. Aristóteles Orsini aos integrantes do corpo de servidores do Planetário. O Sr. Acácio era o único deficiente da turma e, embora possuísse conhecimentos básicos e relativamente avançados de matemática, enfrentava dificuldades na compreensão e acompanhamento da exposição, como também em estudos posteriores. Com o intuito de auxiliá-lo na superação desses problemas, o Prof. Orsini solicitou a construção de modelos mecânicos que, através do sentido do tato, permitissem o acompanhamento das aulas e a transposição do modelo para o "constructo" mental. Essa prática mostrou-se tão eficaz que facilitou sobejamente o aprendizado da matéria pelo sujeito. O Sr. Acácio passou a integrar o corpo de professores do Planetário/Escola Municipal de Astrofísica, tendo ficado responsável pelo curso de "Introdução à Astronomia" por vários anos. Além disso, a experiência foi tão bem sucedida que alguns dos modelos tiveram seus elementos constitutivos pintados diferencialmente para serem utilizados em cursos regulares do Planetário, tornando-se parte integrante do conjunto de recursos didáticos da instituição. É pensando nessa eficácia, tanto em seu objetivo original permitir o aprendizado de um deficiente visual quanto no subsidiário recurso didático sistemático da instituição que decidimos resgatar essa experiência. Estribados nela, acreditamos ser extremamente produtivo, em termos educacionais, o aperfeiçoamento dos modelos originais, agora resgatados e restaurados, e a criação de outros que pudessem ser utilizados no ensino dessa ciência a deficientes visuais.

  19. Tumulus 20 of the Iberian necropolis of Tútugi (Galera, Granada

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    Rodríguez-Ariza, Mª Oliva

    2008-06-01

    Full Text Available Here the results from the excavation of Tumulus 20 of the Iberian Necropolis of Tútugi are presented. This tumulus was robbed in 1916, but the materials were recovered and published by Cabré and Motos in 1920. Among the artefacts was the Dama de Galera (Lady of Galera. The excavation has uncovered a structural complex with two phases of construction. The first phase consists of a quadrangular chamber with an access passageway, both carved into the rock, and with a central pillar of adobe that possibly supported a ceiling. In the second phase, the chamber was filled in with rocks and earth, and the rock was cut to form a circular platform of 13 m in diameter, which was painted red. In the centre of this platform a quadrangular space serving as an entrance corridor was constructed as a projection of the underground structures. This building in the open air was framed within an Cypriot-ingot-shaped platform painted in white.

    Se presentan aquí los resultados obtenidos de la excavación del Túmulo 20 de la Necrópolis ibérica de Tútugi. Este túmulo fue saqueado en 1916 y los materiales fueron recuperados y publicados por Cabré y Motos en 1920, entre ellos se encontraba la Dama de Galera. La excavación ha puesto al descubierto un complejo estructural con dos fases constructivas. La primera fase consta de una cámara cuadrangular con pasillo de acceso, ambos excavados en la roca, y con un pilar central de adobe que posiblemente sostenía el techo. En una segunda fase la cámara es rellenada por piedras y tierra y se recortaría la roca para conformar una plataforma circular de 13 m de diámetro que es pintada de rojo. En el centro de esta plataforma se construye, como proyección de las estructuras subterráneas, un espacio cuadrangular con corredor de entrada. Este edificio al aire libre queda enmarcado dentro de la plataforma por la forma del lingote chipriota pintado en blanco.

  20. The city and the folding territory: art and geography La ciudad y el territorio entre pliegues: arte y geografía

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    Granalí Rodríguez Chumillas

    2012-11-01

    del noroeste mexicano abordando la imagen del imaginario del lugar, desde los paisajes contados a los pintados.

  1. Evaluation of covering materials in individual shelters and its effects on physiological responses and performance of dairy calves Avaliação de materiais de cobertura em abrigos individuais sobre respostas fisiológicas e desempenho de bezerros leiteiros

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    Patrícia C. de F Fonseca

    2012-12-01

    Full Text Available In Tropical regions, the animal performance is often affected by climate conditions. This study aimed to evaluate covering materials in individual shelters, normally used to house dairy calves, and its influence on the calves physiology and performance. The design used was completely randomized, with a 2x3 factorial arrangement to compare the averages of 5% through the Tukey's test, i.e., both genders- and three types of covering in the shelters (Z - zinc; AC - asbestos cement; and WPAC - white-painted asbestos cement. Parameters evaluated included daily weight gain (DWG, dry matter intake (DMI, feed conversion (FC, rectal temperature (RT, and respiratory frequency (RF. Results showed significant differences (P 0.05 in the FC and the RT, and there were significant differences (P Nos trópicos, o desempenho animal é prejudicado pela ação do clima. Objetivou-se neste trabalho avaliar materiais de cobertura em abrigos individuais sobre a fisiologia e o desempenho de bezerros leiteiros. Utilizou-se o delineamento inteiramente casualizado, fatorial 2 X 3, para a comparação das médias ao nível de 5%, pelo teste de Tukey, ou seja, dois sexos e três tipos de coberturas (Z - zinco; CA - cimento-amianto e CAB - cimento-amianto pintado de branco. Foram medidos o ganho de peso diário (GPD, o consumo alimentar (CMS, a conversão alimentar (CA, a temperatura retal (TR e a frequência respiratória (FR. Os resultados mostraram que houve diferença significativa (P 0,05 para CA e TR e observou-se diferença significativa (P < 0,05 para FR nos tratamentos Z (56,9 mov.min-1, CAB (62,2 mov.min-1 e CA (70,25 mov.min-1. Conclui-se que os diferentes tipos de coberturas não influenciaram no desempenho e no consumo alimentar, mas interferiram na fisiologia de termorregulação dos animais.

  2. PABLO RUIZ PICASSO

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    Alvaro López Pardo

    1984-11-01

    Full Text Available

    Muchos de nuestros amables lectores nos han preguntado acerca de la portada del número anterior, en la cual presentamos un cuadro poco conocido de Pablo Ruiz Picasso. Su estilo clásico sorprendió a quienes están acostumbrados a reconocer el arte del genio español en las "Demoiselles D'Avignon" o en "Guernica".

    Por eso hemos decidido dar algunas explicaciones al respecto del cuadro y profundizar un poco en la vida del artista, sin las pretensiones de tratar el tema exhaustivamente, pues sería, como lo ha sido una tarea muy larga y para manos de expertos.
    El cuadro "Ciencia y Caridad", fue pintado por Picasso en 1897, es decir a la edad de 16 años y con él recibió una mención honorífica en Madrid. En un lecho pobre se ve a la enferma demacrada, que refleja en sus ojos, no sólo su gran debilidad, sino la tristeza de dejar -a su pequeño hijo. A su lado se encuentra la Ciencia, representada por el médico, preocupado por los síntomas de la paciente y por su curación. No parece prestar atención a lo que pasa
    al otro lado de la cama, en donde una rubicunda religiosa, que representa la Caridad, extiende a la enferma un poco de alimento y mantiene en brazos al pequeño, quien, sin comprender el drama, se aferra a la monja. la cual, parece estar cumpliendo su deber sólo como una parte de su rutina. Hay que anotar que el modelo para la figura del médico fue el mismo padre de Picasso. El planteamiento del cuadro es sencillo, su tratamiento y composición clásicos, sin duda es una bella obra, que sorprende en un muchacho de la corta edad a que lo realizó el autor.

    ¿Qué había sucedido en la vida de Picasso antes de realizar esta obra, y qué pasó después? Vale la pena describirlo...

    -

  3. New research results on “La Plaza de Toros” of Cerro de San Pelayo” (Martimor, Salamanca: a tumulus burial with inhumation at the beginning of the Firts Millenium in the Western area of the North Meseta

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    López Jiménez, Óscar

    2004-06-01

    Full Text Available The aim of this work is to present the latest results obtained from the systematic revision of the materials from this unique site. We present here the burial level in its complete context and the first results of the analyses of this assemblage. We have documented in it human bones, elements of fauna possibly associated with a funerary feast, storage pottery and the well-known geometric painted vessel. The results obtained by analysis of the distribution and post-depositional processes are also very interesting, allowing us to recreate the space in which seem to be represented symbolic and prestige elements that indicate important social changes in these societies. All this, together with the calibration of the radiocarbon dates taken from the tumulus, offers a more complete archaeological documentation of this little known area in the South-western of the Northern Meseta.

    En este trabajo pretendemos adelantar los últimos resultados obtenidos de la revisión sistemática realizada sobre los materiales de este yacimiento de características únicas hasta ahora en la región. Avanzamos aquí la presentación del nivel de enterramiento en su contexto completo y los primeros resultados de los análisis de este conjunto. En él documentamos restos humanos, elementos de fauna posiblemente asociados a un banquete funerario, elementos de almacenaje y el ya conocido vaso pintado con decoración geométrica. Los resultados obtenidos por los análisis de dispersión y procesos postdeposicionales son igualmente de gran interés, permitiéndonos recrear ese espacio en el que parecen estar representados elementos simbólicos y de prestigio que indican importantes cambios en las sociedades de aquel momento. Todo ello, unido a la recalibración de las fechas radiocarbónicas del interior del túmulo, ofrece una completa documentación arqueológica de un momento poco conocido en el área sudoccidental de la Meseta Norte.

  4. Estado actual de los estudios de conservación de las pinturas rupestres esquemáticas del Monte Valonsadero (Soria y propuestas para su protección y salvaguarda

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    Eugenio Sanz Pérez

    2000-01-01

    Full Text Available El primero de los autores reúne aquí su experiencia, de más de veinte años de estudio y seguimiento de las pinturas rupestres esquemáticas del Monte Valonsadero, con las síntesis —que él mismo traza y los demás autores anotan, corrigen o amplían— de los trabajos de estudio de la alteración de las areniscas que soportan los paneles pintados, de los análisis mineralógicos de sus pinturas y de la conservación y posible medidas para su protección, cuando se aproxima el año 2001, fecha en que este interesante núcleo de arte rupestre cumplirá cincuenta años de su descubrimiento. El interés de los autores está centrado en la necesidad de salvaguardar este tipo de manifestaciones, para lo cual entienden como prioritario el conocimiento de su estado de conservación y la llamada de atención a la Administración a fin de que ésta desarrolle sobre aquéllas cuantas actuaciones sean precisas para cumplir con la inexorable obligación de legarlas, al menos en su situación actual, a la posterioridad.The first one oí the authors assembles his experience of more than twenty-year-old study made of the schematic rock paintings in Monte Valonsadero, together with the syntheses —also made by him and later revised by the other authors— firstly of the studies of the alteration of the sandstone which support the paintings, secondly of the mineralogical analysis of the paint, and finally aiming to the preservation and possible actions for their protection. This article has an especial significance owing to the closeness of the year 2001, date on which the discovery of this interesting cave art nucleus will be fifty years of age. The main interest of tfie authors aims at the necessity of safeguarding tfiis type of paintings and ttiat is why they give priority to the knowledge of the preservation level in which the paintings are and, at the same time, they make a cali on the Authorities attention so that they could make any precise action

  5. Características químicas de abacaxi 'Pérola' após tratamento com calor e armazenagem em três temperaturas Pineapple 'Pérola' chemical characteristics after rot treatment and storage of three temperature

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    Rosilene Ferreira Souto

    2010-03-01

    Full Text Available Avaliou-se o efeito do tratamento térmico (40ºC por 24 horas e de diferentes temperaturas de armazenamento (8ºC, 14ºC e 25ºC, a 90%UR, na conservação pós-colheita de abacaxis 'Pérola', colhidos no ponto de maturação "pintado". As avaliações foram realizadas no início (0 dia, visando à caracterização inicial dos frutos, e após 1; 5; 9; 13 e 17 dias, quando os mantidos sob refrigeração foram transferidos para condição ambiente (25ºC, 75-80% UR, e avaliados aos 21; 25 e 29 dias. O delineamento experimental utilizado foi o inteiramente casualizado, em esquema fatorial (2x3x9, tendo-se os frutos tratados termicamente ou não, o armazenamento a 25ºC, 14ºC e 8ºC e nove épocas de avaliação. Os frutos foram avaliados quanto à ocorrência de podridões e de escurecimento interno, aparência e coloração da polpa, teores de sólidos solúveis (SS, acidez titulável (AT, açúcares solúveis totais e redutores e ácido ascórbico, além da relação SS/AT. Os resultados indicam que a coloração da polpa se tornou mais amarela durante o período refrigerado, enquanto os valores da AT aumentaram. Neste período, a relação SS/AT reduziu-se, mas aumentou com a transferência dos frutos para o ambiente, enquanto os teores de açúcares solúveis totais e redutores diminuíram, e estabilizaram-se. Os teores de ácido ascórbico mantiveram-se sem diferenças significativas, mas com tendência de aumento. Os frutos mantidos sob refrigeração apresentaram sintomas de injúria pelo frio, que apareceram em 8 dias, após serem levados ao ambiente, e com maior intensidade nos tratados termicamente.The effects of heating the fruits at 40ºC for 24 hours and different storage temperatures (8ºC, 14ºC and 25ºC, at 90% RH to postharvest conservation of 'Pérola' pineapple fruit, harvested on "pintado" maturation stage. The evaluations were carried at the beginning (day 0, for initial characterization of the fruit and after 1, 5, 9, 13

  6. La decoración pintada del «cubículo de las estaciones» de la Villa Romana dels Munts (Altafulla, Tarragona

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    Carmen Guiral Pelegrín

    2010-01-01

    Full Text Available La villa delsMunts es una excepcional villa de carácter residencial situada a 12 kmde Tarraco. Los datos arqueológicos testimonian la existencia de una villa agrícola en época augustea; a inicios del s. II se produce una importante reestructuración del edificio con la edificación de una nueva villa, cuya vida se prolonga hasta el último cuarto del s. III, momento en el que ve afectada por un incendio aunque persiste, en parte, hasta momentos avanzados de la Antigüedad Tardía. Las pinturas conservadas en diferentes espacios de la villa se datan en los siglos II y III, si bien el grupo más importante es el correspondiente a los cubículos que se abren al criptopórtico norte, donde se ubica el cubículo de las Estaciones, así denominado por el ciclo iconográfico pintado en el techo. Existe un fuerte contraste entre la decoración del suelo, un simple mortero blanco, las paredes y el techo. Las pinturas parietales presentan una composición muy simple: zócalo con imitaciones de crustae de mármol y zona media con alternancia de paneles anchos lisos y estrechos decorados con motivos vegetales superpuestos. El techo está compartimentado en casetones en relieve, decorados con la representación alegórica de las cuatro Estaciones y con dos Ménades. El pavimento y las pinturas parietales se datan en la primera mitad del s. II y el techo se fecha en época antonina.The villa of «ElsMunts» is an exceptional residential villa which is located 12 kmaway from Tarraco. Archaeological data point to the existence of a farming village in the Augustan period; a significant restructuring of the building (with the construction of a new villa occurred in the beginning of 2nd century, its life was prolonged until the last quarter of that century, when was affected by a fire. Nevertheless it remained partially up to advanced times of Late Antiquity. The paintings preserved in different areas of the villa are dated in the 2nd and 3rd century, though

  7. Gradientes de qualidade em abacaxi 'Pérola' em função do tamanho e do estádio de maturação do fruto Quality gradients in 'Pérola' pineapple in function of fruit size and maturation stage

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    Domingo Haroldo Reinhardt

    2004-12-01

    Full Text Available Frutos compostos podem apresentar variações expressivas nas propriedades da polpa, exigindo cuidados especiais nos procedimentos de controle de qualidade. Este trabalho visou a determinar gradientes dos principais atributos da polpa do abacaxi 'Pérola', em função do tamanho e do estádio de maturação dos frutos. Estes foram colhidos em plantios comerciais em Itaberaba-BA, na safra 2002, determinando-se os teores de sólidos solúveis totais (SST, vitamina C (ácido ascórbico e da acidez titulável (AT, o pH e a relação SST/AT no suco. Em delineamento inteiramente casualizado, foram estudados os tratamentos distribuídos em esquema fatorial 2 (tamanho do fruto - pequeno e grande x 2 (estádio de maturação do fruto - verdoso/pintado e colorido x 3 (terços superior, mediano e inferior, com 15 repetições, no primeiro experimento, e em esquema fatorial 3 (terços superior, mediano, inferior x 3 (terços externo, central e interno, com sete repetições, no segundo. Os SST aumentaram da parte superior do fruto para a inferior e da externa para a interna, sendo mais altos em frutos coloridos, ocorrendo o contrário para a AT e a vitamina C. Frutos pequenos apresentaram maiores teores de SST e AT e menores de SST/AT e vitamina C. A amplitude dos gradientes observados no abacaxi 'Pérola' exige a utilização de amostras constituídas por seções longitudinais e horizontais completas do fruto, nos procedimentos de controle de qualidade.Composed fruits may present expressive variations in its pulp proprieties, requiring special attention to quality control procedures. This work aimed at determining the main attributes of 'Pérola' pineapple pulp, in function of fruit size and maturation stage. Fruits were harvested from commercial fields in Itaberaba, Bahia, Brazil, in the 2002 harvest season, and their contents of total soluble solids (TSS, vitamin C (ascorbic acid, titratable acidity (TA, TSS/TA ratio and pulp pH determined. In

  8. Estudio de los pigmentos de la cerámica ceremonial Moche con ayuda de un microscopio electrónico de barrido

    Directory of Open Access Journals (Sweden)

    1997-01-01

    Full Text Available ÉTUDE DES PIGMENTS DE LA POTERIE CEREMONIELLE MOCHE A L’AIDE D’UN MICROSCOPE ELECTRONIQUE À BALAYAGE. Une collection de 22 tessons de céramique appartenant à autant de vases peints à l’aide d’une combinaison d’engobes rouges et blanches a été soumise à un examen au microscope électronique à balayage. L’objectif principal de cette étude consiste à déterminer la composition chimique des pigments constituant la couleur appliquée sur des vases cérémoniels ayant été trouvés près de la tombe Nº 5 située sur la Huaca de la Luna, l’une des deux plus importantes structures monumentales du site Moche de la côte nord du Pérou. Les résultats confirment l’utilisation d’oxides de fer, probablement de l’hématite, pour obtenir l’engobe rouge tandis que la calcite serait à la base de la production de l’engobe blanche. Les possibilités et les limites de cette méthode font l’objet d’une discussion. Una muestra de 22 fragmentos de cerámica, pertenecientes a una misma cantidad de vasos pintados con engobe blanco y rojo fue sometida a examen, empleando un microscopio electrónico de barrido. El objetivo central de este estudio fue el de determinar la composición química de los pigmentos que conforman los colores aplicados sobre las vasijas ceremoniales. Estas fueron halladas cerca de la tumba N° 5, localizada encima de la Huaca de la Luna, una de las dos estructuras monumentales del sitio de Moche en la costa norte del Perú. Los resultados confirman la utilización de óxidos de fierro, probablemente de hematita, para obtener el engobe rojo, mientras que la calcita sería la base para la producción del engobe blanco. Las posibilidades y los límites de este método son el objeto de discusión en este trabajo. SCANNING ELECTRON MICROSCOPE STUDY OF MOCHE CEREMONIAL POTTERY SLIPS. A study of 22 sherds selected from distinct vessels painted with red and white slips has been conducted with a scanning electron microscope

  9. Safety profile of solid lipid nanoparticles loaded with rosmarinic acid for oral use: in vitro and animal approaches

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    Madureira AR

    2016-08-01

    Full Text Available Ana Raquel Madureira,1 Sara Nunes,2 Débora A Campos,1 João C Fernandes,2 Cláudia Marques,3 Monica Zuzarte,2 Beatriz Gullón,1 Luís M Rodríguez-Alcalá,1 Conceição Calhau,3,4 Bruno Sarmento,5–7 Ana Maria Gomes,1 Maria Manuela Pintado,1 Flávio Reis2 1Catholic University of Portugal, CBQF – Center for Biotechnology and Fine Chemistry – Associate Laboratory, Faculty of Biotechnology, Porto, Portugal; 2Laboratory of Pharmacology and Experimental Therapeutics, Institute for Biomedical Imaging and Life Sciences (IBILI, Faculty of Medicine, and CNC.IBILI Consortium, University of Coimbra, Coimbra, Portugal; 3Department of Biochemistry, Faculty of Medicine, University of Porto, Porto, Portugal; 4Center for Health Technology and Services Research (CINTESIS, Porto, Portugal; 5Department of Pharmaceutical Sciences, Institute of Health Sciences-North, CESPU, Gandra, Portugal; 6“I3S” Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal; 7INEB, Institute of Biomedical Engineering, University of Porto, Porto, Portugal Abstract: Rosmarinic acid (RA possesses several protective bioactivities that have attracted increasing interest by nutraceutical/pharmaceutical industries. Considering the reduced bioavailability after oral use, effective (and safe delivery systems are crucial to protect RA from gastrointestinal degradation. This study aims to characterize the safety profile of solid lipid nanoparticles produced with Witepsol and Carnauba waxes and loaded with RA, using in vitro and in vivo approaches, focused on genotoxicity and cytotoxicity assays, redox status markers, hematological and biochemical profile, liver and kidney function, gut bacterial microbiota, and fecal fatty acids composition. Free RA and sage extract, empty nanoparticles, or nanoparticles loaded with RA or sage extract (0.15 and 1.5 mg/mL were evaluated for cell (lymphocytes viability, necrosis and apoptosis, and antioxidant

  10. Aplicação de zinco em sementes de arroz irrigado e no solo / Application of zinc on rice seeds and on the soil

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    Diniz Frouza

    2011-08-01

    Full Text Available O experimento foi conduzido em casa de vegetação do Departamento de Fitotecnia, na Universidade Federal de Santa Maria, com o objetivo de avaliar a eficiência da aplicação de zinco nas sementes da cultivar de arroz irrigado BRIRGA 410 e em sete amostras de solo, sobre altura de planta, número de afilhos e de panículas, massa fresca e seca da parte aérea e teor de zinco na massa seca da parte aérea das plantas de arroz. O delineamento experimental utilizado foi um bifatorial 4 x 7 em blocos ao acaso, com três repetições. Utilizou-se vaso de latão pintado, revestido com saco plástico, com 3,0 kg de cada solo. Os tratamentos com zinco constaram da aplicação na semente (100 g ha-1 Zn tendo como fonte ZnSO4.7H2O (22,73% de Zn, no solo (5,0 kg ha-1 Zn sendo a fonte Zincodur® (28% de Zn, as duas formas de aplicação combinadas e a testemunha sem zinco. Os resultados evidenciaram que não houve diferença estatística significativa nos tratamentos com zinco aplicado em três classes de solo e no tratamento de semente, sobre o crescimento das plantas, com exceção da variável teor de zinco na massa seca da parte aérea que foi superior para os tratamentos com zinco no solo e na semente + solo. O solo Vacacaí (PLANOSOLO HIDROMÓRFICO Eutrófico arênico, originário de São Gabriel (RS, destacou-se dentre os demais nas variáveis de números de afilhos, massa fresca e seca da parte aérea e teor de zinco na massa seca da parte aérea, pelo fato de apresentar originariamente teor mais elevado de zinco.AbstractThis experiment was conducted in the greenhouse of the Department of Plant Science, at the Federal University of Santa Maria, to evaluate the efficiency of application of zinc on the seeds of irrigated rice cultivar BR- IRGA 410 and on seven soil samples. Plant height, number of tillers, and panicle, fresh and dry shoot and zinc content in dry mass of shoots were evaluated. The experimental design used was a factorial 4 x 7 in

  11. Edificio industrial, en Kuwait

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    Farmer y Dark, Arquitectos

    1963-11-01

    consecuencia la construcción de grandes centrales eléctricas. La central «A» es uno de los varios edificios que constituyen el grupo suministrador de energía y agua potable a Kuwait; dispone de cuatro turboalternadores, y se ha estudiado, para el interior, una presión y movimiento del aire, suficiente para contrarrestar la acción del exterior e impedir la entrada de la arena que arrastran las tempestades frecuentes. En cuanto al aspecto de sus fachadas, se ha pretendido conseguir que armonicen con los edificios circundantes. La línea arquitectónica es audaz e irregular, buscando variedad de perfiles y diversos juegos de luces y sombras, que recuerden las construcciones indígenas de barro, con formas puras y elementales, pero quebradas y redondeadas por la acción del tiempo. El color en los interiores ha sido estudiado para dar la impresión de frescura; en el exterior sólo se han pintado las zonas que podían reflejar molestamente los rayos solares. El conjunto resulta agradable, dentro de su sencillez, cual corresponde a una instalación de tipo industrial, y no faltan detalles de buen gusto y de preocupación por la gente que ha, de permanecer allí algunas horas del día, como ocurre con el balcón de las oficinas, que mira al mar, y el estanque y zonas verdes del parque de entrada.

  12. Vivienda en Düsseldorf-Himmelgeist - Alemania Federal

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    Schneider-Esleben, P.

    1973-04-01

    vivienda principal y con entradas independientes. Una entreplanta alberga el baño, W.C., ropero y vestidor del dormitorio del matrimonio, situado inmediatamente encima, en la primera planta, formando una torre que destaca de la masa baja del resto del edificio. La comunicación vertical se efectúa mediante una escalera de caracol. Construcción: a base de fábrica de ladrillo y enfoscada interior y exterior con mortero de cemento pintado de blanco.

  13. ANÁLISE ARQUEOMÉTRICA DE PINTURAS RUPESTRES PRÉ-HISTÓRICAS DO SÍTIO TAMBORIL, BARRAS, PIAUÍ, BRASIL (Archaeometric Analysis of Prehistoric Rock Paintings from the Tamboril Site, Barras, Piauí, Brazil

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    Luis Carlos Duarte Cavalcante

    2016-03-01

    Full Text Available O sítio arqueológico Tamboril, localizado na área rural do município de Barras, estado do Piauí, Brasil, é um bloco arenítico que apresenta um nicho decorado com pinturas rupestres, principalmente grafismos puros, motivos zoomórficos e carimbos de mãos humanas, pintados em diferentes tonalidades de vermelho. A conservação das pinturas é afetada por eflorescências salinas, resíduos decorrentes da atividade de insetos (como cupins e vespas e impacto humano (visitação sem acompanhamento de guias e atividade agrícola nas proximidades. A análise arqueométrica de pigmentos dessas pinturas rupestres foi realizada no laboratório com fluorescência de raios X por dispersão de energia e espectroscopia Mössbauer do 57Fe em geometria de retroespalhamento de raios γ à temperatura ambiente. Os teores de Fe (como Fe2O3 encontrados nas pinturas variam de 2,953(1 massa% a 17,23(1 massa%. Os parâmetros hiperfinos Mössbauer revelaram que o pigmento vermelho-escuro das pinturas rupestres é composto de hematita (αFe2O3 e de um Fe3+ (superparamagnético. Os teores de P (como P2O5 variam de 21,70(1 massa% a 25,92(1 massa% e foram atribuídos às eflorescências salinas e aos resíduos orgânicos de atividades de insetos que cobrem as inscrições pré-históricas. ENGLISH: The archaeological site known as Tamboril, located in the rural area of the municipality of Barras, Piauí State, Brazil, is a sandstone block that contains a niche decorated with rock paintings. These paintings are mainly composed of pure graphisms, zoomorphic motifs, and human handprints, painted in different tonalities of red. Their conservation has been affected by saline efflorescences, residues of insect activities (such as wasps and termites and human impact (unguided visitors and nearby agricultural activity. The archaeometric analysis of pigments from these rock paintings was performed in the laboratory with energy dispersive X-ray fluorescence and room

  14. Crescimento de plantas de cajueiro anão precoce influenciado pela compactação e temperatura do solo

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    P. K. B. Oliveira

    2003-02-01

    Full Text Available Atribui-se ao uso de práticas culturais inadequadas uma das causas da redução drástica dos níveis de produtividade e produção da cultura do caju no nordeste brasileiro. A eliminação periódica da cobertura vegetal e o tráfego de máquinas e implementos condicionam temperaturas e densidade de solo que podem comprometer o crescimento e desenvolvimento das plantas, o que é mais preocupante ainda, considerando a textura arenosa dos solos cultivados e as condições climáticas da região. A partir destas constatações, desenvolveu-se o presente trabalho, com vistas em fornecer indicativos capazes de permitir uma avaliação dos efeitos das condições de solo e clima, objetivando identificar o comportamento de plantas de cajueiro anão precoce, submetidas a diferentes níveis de compactação e temperatura de solo, como meio de testar a hipótese de que níveis crescentes destes fatores podem reduzir seu crescimento. O presente trabalho foi desenvolvido em condições controladas, utilizando colunas de solo em tubos de PVC, nas quais se adicionou o Argissolo Vermelho-Amarelo eutrófico típico. Submeteram-se estas colunas a dois níveis de temperatura do solo, um com as colunas de solo isoladas com folhas de isopor pintadas na cor alumínio (tratamento isolado-TI, e o outro, com colunas não isoladas, mas com os tubos de PVC pintados na cor preta, para maior absorção de luz (tratamento não isolado-TNI. Os níveis de densidade a que foram ajustadas as camadas compactadas da coluna de solo foram 1,2; 1,3; 1,4; 1,5; 1,6 e 1,7 Mg m-3, sendo o restante da coluna a 1,3 Mg m-3. Os tratamentos foram distribuídos em delineamento inteiramente casualizado, com arranjo fatorial 6 x 2 (seis níveis de compactação e dois níveis de temperatura, com três repetições. Após o período de 12 meses de cultivo das plantas, a parte aérea foi colhida, determinando-se matéria seca da parte aérea, altura da planta, diâmetro do caule e número de

  15. Palacio de correos, telégrafos y oficinas públicas, en Cortina D'Ampezzo

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    Gellner, Edoardo

    1964-03-01

    auxiliar. En la otra parte de este piso, disponiendo de accesos independientes, está ubicada la sala de Audiencias del Juzgado. Se desarrollan en el segundo piso las dependencias del Juzgado: oficinas del juez, de los secretarios, sala de abogados, de estadística, archivo y registro. En el tercer piso están las oficinas de Hacienda y seguridad públicas. Y en el ático, los salones del círculo artístico, capaces para 120 personas, con bar, oficinas y aseos. El edificio ofrece toda su estructura de hormigón armado vista y abujardada. La policromía de los paneles de cerramiento, pintados de color azul celeste y rojo, y los revestimientos de alerce, con su color natural rojizo, contribuyen a romper el tono gris uniforme de la masa de hormigón armado y dan vivacidad a las fachadas.

  16. Planetary and Space Simulation Facilities (PSI) at DLR

    Science.gov (United States)

    Panitz, Corinna; Rabbow, E.; Rettberg, P.; Kloss, M.; Reitz, G.; Horneck, G.

    2010-05-01

    Cyanobacterium, Chroococcidiopsis sp. 029, Astrobiology, 5/2 127-140Aman, A. (1996) LPS XXVII, 1344-1 [4] de la Torre Noetzel, R.; Sancho, L.G.; Pintado,A.; Rettberg, Petra; Rabbow, Elke; Panitz,Corinna; Deutschmann, U.; Reina, M.; Horneck, Gerda (2007): BIOPAN experiment LICHENS on the Foton M2 mission Pre-flight verification tests of the Rhizocarpon geographicum-granite ecosystem. COSPAR [Hrsg.]: Advances in Space Research, 40, Elsevier, S. 1665 - 1671, DOI 10.1016/j.asr.2007.02.022

  17. Performance of cylindrical leaf wetness duration sensors in a tropical climate condition Desempenho de sensores cilíndricos para medida da duração do período de molhamento foliar em condições de clima tropical

    Directory of Open Access Journals (Sweden)

    Eduardo Alvarez Santos

    2008-12-01

    conditions, where LWD measured by cylinders were two hours longer than by flat plate sensors.Medidas da duração do período de molhamento (DPM são necessárias para diversos sistemas de alerta fitossanitário, uma vez que a DPM é uma variável importante para a epidemiologia. O sensor cilíndrico é um sensor eletrônico barato e que pode ser facilmente produzido. Esse sensor foi inicialmente projetado para medir DPM em cebola, contudo alguns estudos indicam que ele também pode ser utilizado em estações meteorológicas e outras culturas. Portanto, o objetivo deste estudo foi avaliar o desempenho de sensores cilíndricos sob condições tropicais, no Brasil, tendo-se as medidas obtidas pelo sensor de placa como referência. Antes de serem instalados no campo, todos os sensors eletrônicos utilizados no estudo (placa e cilíndricos foram pintados com tinta latex branca e, em seguida, submetidos a tratamento térmico. Testes de laboratório foram realizados para determinar um limiar de resistência, a partir do qual os sensores seriam considerados molhados, e o tempo de reposta dos sensores ao molhamento. No campo, todos os sensores foram inicialmente instalados na horizontal a 30 cm de altura sobre gramado, visando a avaliar a variabilidade entre os sensores de DPM. A variabilidade entre os sensores cilíndricos na horizontal foi reduzida com a adoção de um limiar de resistência específico para cada sensor. O coeficiente médio de variação para DPM diária medida pelos sensores cilíndricos foi igual a 9,7%. Posteriormente, os sensores cilíndricos foram instalados em 5 ângulos diferentes com a horizontal: 0, 15, 30, 45, and 60º. As medidas obtidas por esses sensores são comparáveis com a medida padrão, fornecida por sensores de placa instalados a 45º e mesma altura. A mudança do ângulo de instação não teve efeito sistemático sobre as medidas da DPM para as condições locais, uma vez que as correlações entre as medidas dos sensores de placa e

  18. Acessibilidade em ambiente universitário: identificação de barreiras arquitetônicas no campus da USP de Bauru Accessibility in the university environment: identification of architectural barriers in the USP campus of Bauru

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    Dionísia Aparecida Cusin Lamônica

    2008-08-01

    Full Text Available A acessibilidade é um direito do cidadão assegurado por lei para que portadores de deficiência tenham a possibilidade de usufruir de recursos e ações no âmbito social. Barreiras arquitetônicas interferem na vida destes podendo deixá-los a parte da convivência e vida social. Os objetivos deste estudo foram: identificar, descrever e mapear barreiras físicas no Campus da Universidade de São Paulo de Bauru e apresentar as intervenções realizadas, durante o período de outubro de 2001 a dezembro de 2005. O estudo foi descritivo-quantitativo, no qual a coleta de dados centrou-se na análise das condições arquitetônicas das três unidades que compõe este campus, observada as normativas da Associação Brasileira de Normas técnicas e realizada intervenções. Foram identificados: 72 pontos de guias não rebaixadas, 21 pontos de acessos com diferenças de níveis sem rampas; 220m² de escadas/rampas sem corrimãos; 658m² de escadas/rampas com corrimãos em discordância com as normas vigentes; 03 rampas com inclinações superiores às determinadas nas normas técnicas; 10 banheiros parcialmente adaptados para deficientes; 02 vagas de estacionamento parcialmente adaptadas e 02 elevadores existentes. Foram executados, em 19 pontos, rebaixamentos de guias, somando 115 m², com linhas de piso tátil, pintados; 8 rampas; 14 pontos de escadas e rampas externas instaladas com corrimãos e guarda-corpos, 5 vagas exclusivas no estacionamento; instalado 2 centrais de atendimento telefônico para surdo e adquiridas 3 cadeira de rodas. As intervenções realizadas contribuíram para melhorar a acessibilidade de portadores de deficiência no campus favorecendo a utilização dos recursos existentes neste espaço público.All citizens have the right assured by law to accessible to enable people with disabilities to enjoy resources and activities in the social environment. Physical barriers intervene in their life and can exclude them from living

  19. Synthesis of coloured ceramic pigments by using chromite and manganese ores mixtures Síntese de pigmentos cerâmicos coloridos usando misturas de cromita e de minérios de manganês

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    M. H Aly

    2010-06-01

    ção de soluções sólidas de espinélio em materiais cerâmicos é principalmente devido às características estruturais, estabilidades térmica e química. Neste estudo pigmentos coloridos foram obtidos por calcinação a 1250 ºC partindo-se de mistura de cromita e óxido de manganês. Foram testadas diferentes composições contendo 30, 40 e 50 peso% de óxido de manganês (alto e baixo teor, respectivamente. A composição de fases e a caracterização microestrutural da matéria-prima e dos pigmentos obtidos foram avaliadas por difração de raios X, fluorescência de raios X, microscópio óptico com luz polarizada e microscópio eletrônico de varredura. Além disso, foram determinadas as cores dos pigmentos obtidos e dos azulejos. A composição de todos os pigmentos mostra a estrutura espinélio com Cr2FeO4; hematita foi também detectada na mistura de baixo teor de manganês. O grau de brilho é relativamente o mesmo em todas as misturas de pigmentos com os dois conteúdos de manganês. Entretanto, os azulejos podem ser considerados brilhantes comparados com seus pigmentos, especialmente o de maior teor de manganês. As reações de calcinação em estado sólido são realmente capazes de formar um pigmento marrom intenso que pode ser usado em aplicações em cerâmica industrial. A produção de pigmentos cerâmicos negros a partir de matéria-prima de menor custo e menor teor de pureza, que podem ser utilizadas no Egito para substituir os óxidos e sais puros, mostrou desempenho melhor para a produção de pigmentos pintados.

  20. Architecture naturelle et architecture symbolique au Néolithique. L’exemple des abris peints des gorges de la Nesque (Vaucluse, France

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    Philippe HAMEAU

    2009-12-01

    Full Text Available RÉSUMÉ: L’expression schématique rupestre, pariétale ou mobilière du Néolithique dans le sud de la France est à placer, essentiellement, aux IVe et IIIe millénaires av.J.C. Pourtant, certaines peintures pourraient être plus anciennes et le décor céramique est de style schématique dès le Néolithique ancien. On décrit ici un groupe de dix abris ornés dans un contexte de gorges: leur topographie, leurs peintures et éventuellement leur mobilier archéologique. La diversité des teintes utilisées et des cas de superpositions de traits nous font supposer plusieurs phases graphiques et une complémentarité des sites. Malgré leur apparente disparité, ces abris répondent à des critères précis qui déterminent leur choix par les Néolithiques, notamment la présence d’un ruissellement périodique. A ce titre, plusieurs concrétions résultant des écoulements d’eau sont rehaussées de colorant rouge. Deux abris sont manifestement des sites de réclusion: la condamnation du couloir du premier, le perchement du second, isolent automatiquement leurs usagers du reste de la communauté. En outre, leurs particularités topographiques et pariétales en font des sites propices à des rites de passage. Par comparaison, les grands porches seraient plutôt des lieux de rassemblement. Toutes ces hypothèses traduisent une volonté de considérer les singularités naturelles des lieux (gorges, abris, parois comme autant d’éléments symboliques participant à la constitution des sanctuaires au Néolithique.RESUMEN: La expresión esquemática rupestre, parietal o mobiliaria del Neolítico en el sur de Francia, se tiene que integrar, principalmente, en los IV y III milenios a.C. A pesar de todo, algunas pinturas podrían ser más antiguas y la decoración cerámica es de estilo esquemático desde el Neolítico antiguo. Se describe aquí un grupo de diez abrigos pintados en un contexto de gargantas: su topografía, sus pinturas y

  1. A propósito de un retrato póstumo: Francisco Espinel Salive (1929-1985

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    Efraim Otero Ruiz

    1996-08-01

    Full Text Available

    Si a Francisco Espinel le hubiéramos dicho que íbamos a descubrir esta noche su retrato en la galería de los grandes de la Academia de Medicina de Bucaramanga, habría entornado sus negros ojos saltones y con un rictus, entre risa y escepticismo, habría murmurado: “Bueno, y eso … ¿para qué?” -y seguramente después, al calor de unos cuantos whiskies y después de haber pulsado el tiple heredado de José Ferreira, me habría hecho repetir el soneto “Vera efigie”, compuesto por mí hace poco, cuando en la Academia Nacional el Vicepresidente, Dr. Adolfo De Francisco Zea, quiso pedir a sus familiares que se ejecutara, para colgarlo allí, un nuevo retrato de su ilustre abuelo el Dr. Luis Zea Uribe:

    Vera Efigie

    Puede usted yacer tranquilo y quieto
    entre su tumba, ilustre doctor Zea:
    al fin y al cabo la brillante idea
    de retratarlo, ha sido de su nieto.

    Qué mejor que, plasmado en un boceto,
    colgarlo en el salón, como presea
    de la Academia, en que brilló la tea
    de su talento, lúcido e inquieto?

    El problema, doctor, es el estilo;
    la decisión pendiente está de un hilo
    de retratarlo así, de cuerpo entero,
    o, cediendo a atavismos de su gente
    dejarlo a usted gordito y reluciente
    en un cuadro …pintado por Botero.

    En todo caso, sea que del soneto se derive o no una moraleja, sé que a Pacho le hubieran chocado los discursos. Hubiera preferido que habláramos en tono menor y un poco sonriente, como ahora, o como cuando nos conocimos desde siempre, hace ya 37 años, en los pabellones del Instituto Nacional de Cancerología. Entrábamos a hacer el internado con apenas unos cuantos meses de diferencia

  2. Survival of the lichen model system Circinaria gyrosa before flight to the ISS (EXPOSE R2 mission)

    Science.gov (United States)

    De la Torre Noetzel, Rosa

    potential to space and Mars conditions, contributing to our understanding of extremotolerance and the Lithopanspermia hypothesis [7]. References [1] Rabbow, E., und Rettberg, Petra und Barczyk, Simon und Bohmeier, Maria und Parpart, André und Panitz, Corinna und Horneck, Gerda und von Heise-Rotenburg, Ralf und Hoppenbrouwers, Tom und Willnecker, Rainer und Baglioni, Pietro und Demets, René und Dettmann, Jan und Reitz, Guenther (2012) EXPOSE-E: An ESA Astrobiology Mission 1.5 Years in Space. Astrobiology, 12 (5), Seiten 374-386. Mary Ann Liebert, Inc.. DOI: 10.1089/ast.2011.0760. [2] De la Torre, R. L.G. Sancho, G. Horneck, A.de los Ríos, J. Wierzchos, K. Olsson-Francis, C.S. Cockell, Rettberg P., T. Berger, J.P. de Vera, S. Ott, J. Martinez Frías, P.Gonzalez Melendi M.M. Lucas, M. Reina, A. Pintado, R.Demets. Survival of lichens and bacteria exposed to outer space conditions. Results of the Lithopanspermia experiments. Icarus, doi:10.1016/j.icarus.2010.03.010 (2010). [3] Sanchez, F.J., E. Mateo-Martí, J. Raggio, J. Meessen, J. Martinez-Frias, L. Gª Sancho, S. Ott and R. de la Torre. The resistance of the lichen Circinaria gyrosa (nom. provis.) towards simulated Mars conditions - a model test for the survival capacity of an eukaryotic extremophyle. Planetary and Space Science 72, 102-110 (2012). [4] de Vera JP and the BIOMEX-Team (2012) Supporting Mars exploration: BIOMEX in Low Earth Orbit and further astrobiological studies on the Moon using Raman and PanCam technology. Planetary and Space Science, 74 (1), Seiten 103-110. Elsevier. DOI:10.1016/j.pss.2012.06.010. [5] Meeßen J, Sánchez FJ, Brandt A, Balzer EM, de la Torre R, Sancho LG, de Vera JP, Ott S (2013) Extremotolerance and resistance of lichens: Comparative studies on five species used in astrobiological research I. Morphological and anatomical characteristics. Origins of Life and Evolution of Biospheres 43 (3): 283-303 [6] Meeßen J, Sánchez FJ, Sadowsky A, de Vera JP, de la Torre R, Ott S (2013

  3. Classificação do tomate por atacadistas e produtores Curitiba Classification of tomatoes by wholesalers and producers in Curitiba, Brazil

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    Luciana R Rodrigues

    2007-12-01

    Full Text Available Identificou-se o sistema efetivamente utilizado para classificação do tomate para mesa por atacadistas e produtores em Curitiba. Verificou-se também por que não são adotadas as normas legais de classificação. Foram entrevistados 11 atacadistas e 31 produtores de tomate que comercializam sua produção na CEASA Curitiba. Outros dois produtores foram entrevistados em suas propriedades e acompanhados desde a produção até a comercialização. Após tabulação dos dados calculou-se a porcentagem de entrevistados enquadrados em cada questão, em relação ao número total de entrevistados. Constatou-se que há mais de uma linguagem de classificação no mercado e embora não haja padrões de classificação, essas linguagens são compreendidas no momento da comercialização. Para os atacadistas da CEASA Curitiba, a classificação do tomate baseia-se nas cores e nos tamanhos dos frutos. Os frutos podem ser verdes, coloridos (ou pintados ou vermelhos (ou maduros e apresentar tamanho Extra 3A ou boca 5 (diâmetro maior que 7,5 cm, Extra 2A ou bocas 6 ou 7 (diâmetro entre 6,2 e 7,5 cm, Extra 1A ou bocas 8 ou 9 (diâmetro entre 4,8 e 6,2 cm. Os frutos Extra 2A (médios são os mais freqüentes no comércio. Já a maioria dos produtores classifica os frutos em graúdos, médios e miúdos, em uma clara correspondência com a classificação adotada pelos atacadistas. Ambos os sistemas de classificação diferem do oficial que, segundo a maioria de atacadistas e produtores, é difícil de aplicar, encareceria o produto final e levaria a um aumento considerável do volume de frutos a serem descartados. Por esses motivos, antes que as normas oficiais de classificação de tomate possam ser adotadas, é necessário que se disponibilizem para o setor produtivo tecnologias de produção e assistência técnica qualificada. É necessário ainda que as normas de classificação sejam internalizadas pelos agentes do mercado por meio de cursos e

  4. Elasmobranchs observed in deepwaters (45-330m at Isla del Coco National Park, Costa Rica (Eastern Tropical Pacific

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    Jorge Cortés

    2012-11-01

    álogo de elasmobranquios observados con el sumergible DeepSee. Cinco especies de tiburones y siete especies de rayas han sido observadas entre 45 y 330m de profundidad. Triaenodon obesus, tiburón punta blanca de arrecifes o tiburón cazón coralero, observado comúnmente entre 80 y 301m pero solo en las tardes. Sphyrna lewini, el tiburón martillo o cornuda común, registrado hasta 303m, pero comúnmente entre 45 y 90m, y cerca de la Isla del Coco. Odontaspis ferox, tiburón solrayo, visto entre 82 y 316m. Echinorhinus cookei, tiburón negro espinoso, avistado entre 91 y 320m. Rhincodon typus, tiburón ballena, observado solamente cerca de la isla, entre 77 y 80m. Taeniura meyeni, raya moteada, vista solamente cerca de la isla, entre 45 y 90m. Dasyatis sp., parecida a la raya látigo, registrada solamente una vez, cerca de la isla a 60m; este es el primer informe de esta especie en el Parque Nacional Isla del Coco. Manta birostris, manta gigante, observada únicamente cerca de la isla a 90m. Mobula tarapacana, manta cornuda o manta moruma, vista entre 60 y 326m, extendiendo su profundidad máxima casi 10 veces a lo informado en la literatura. Aetobatus narinari, chucho pintado o raya águila, observada solamente cerca de la isla entre 60 y 82m. Por último, Torpedo peruana, raya torpedo eléctrico o raya peruana, solamente vista una vez a 313m y es el primer informe de esta especie en el Parque Nacional Isla del Coco.

  5. Book Review: Aullón de Haro, P. (2016, La Escuela Universalista Española del siglo XVIII. Madrid: Sequitur, pp. 255.

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    Esther Zarzo

    2017-07-01

    methodology of study, based on the unity of its object: the destiny of man, with his knowledge integrated into a unitary vision of the universe and the world. All this is ultimately based on the work of Dionysius of Halicarnassus, historically rooted in the process of Greco-Roman cultural parallels, and with the main figures of Macrobius, Scaliger and Morhof. Furthermore, 2017 is the second centenary of the death of Juan Andrés, commemorated by an international Congress held at the Complutense University of Madrid and featuring an important bibliographical exhibition in the History Library of this Madrid University, titled "Juan Andres y la Escuela Universalista Española" (2017. The great scientific and thematic scope of the School means that it is possible to discern several sectors or "sub-schools", although the authors often practice several disciplines: the linguistic sub-school (Hervás and his extensive circle of collaborators, bibliographical (Miguel de Casiri, Diosdado Caballero…, botanical-naturalist (Antonio José Cavanilles, Pedro Franco Dávila, Juan José Ruperto de Cuéllar, José Celestino Mutis, Eduardo Romeo…, musicological (Antonio Eximeno, Josef Pintado, Vicente Requeno, Buenaventura Prats, Joaquín Millás…, Americanist-Mexicanist (Francisco Javier Clavijero, Juan Bautista Muñoz, Miguel del Barco González, José Lino Fábregas, Juan Nuix y Perpiñá…, on the Philippines (Juan de la Concepción, Antonio de Tornos, Bernardo Bruno de la Fuente…, meteorology (Andrés, Viñes, Faura…, studies on translation (Carlos Andrés, Juan Bautista Colomés, Pedro Cantón… etc. The work is divided into three sections: "Teoría general", "Textos de y sobre autores de la Escuela", and "Bibliografía fundamental y selecta". The first section begins with an introductory chapter in which the conceptual principles of the School are explained in relation to the particularity of the Hispanic cultural history, where both its antecedents and theoretical limits are

  6. Ideas de Vida y Muerte en Culturas Orientales

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    Adolfo de Francisco Zea

    1994-12-01

    Full Text Available

    Señor Presidente: Es muy placentero para mí en la tarde de hoy entregar a la Academia por su digno conducto, el retrato del Dr. Luis Zea Uribe, mi abuelo, quien fuera miembro de la Corporación por largo tiempo y presidiera sus destinos de 1928 a 1930.y es especialmente significativo para mí por ser usted, mi compañero de estudios y amigo de siempre, quien ocupa hoy con lujo y distinción la Presidencia de la Academia.

    Este retrato es copia del que fuera pintado por el célebre miniaturista y retratista bogotano Luis Felipe Uzcátegui hace varias décadas y hace justicia a las inmensas calidades de su espíritu: la frente amplia que traduce una inteligencia prodigiosamente lúcida, rápida y penetrante hasta lo maravilloso, como lo señalara Armando Solano en el prólogo del libro que recogió sus Producciones Escogidas.

    Las líneas delgadas de su boca y el mentón recio del estudioso que además de adquirir amplios conocimientos médicos, incursionó con su microscopio monocular en el mundo de lo infinitamente pequeño y apreció con su telescopio el mundo de lo infinitamente grande, lo que lo condujo a ser miembro de la Sociedad Astronómica de Francia presidida en ese entonces por su amigo cercano Camilo Flammarion. Quizás fue el estudio de las maravillas del universo lo que lo llevó un paso adelante a investigar en el campo de los fenómenos espiritualistas que hoy caen dentro de la órbita de la psicología y la para psicología, para lo cual estaba admirablemente dotado. Allí adquirió la certeza absoluta de la existencia del más allá y de un Dios inefable pleno de bondad y ordenó su vida entera a adquirir el Conocimiento, a impregnar todos sus actos con un alto sentido de la ética y a buscar el perfeccionamiento personal en la existencia terrena, que en su sentir, habría de permitirle en sucesivas encarnaciones acercarse cada vez más a la perfección.

    Sus experiencias en el campo espiritualista y sus

  7. O puru-puru da Amazônia (Pinta, Carate, Mal del Pinto etc

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    F. Nery Guimarães

    1948-03-01

    Full Text Available 1 "Purú-purú" é uma palavra indígena que quer dizer "pintado" ou "manchado", peculiar à Amazonia Brasileira. Com êsse nome é designada uma dermatose referida entre os selvicolas desde 1774, por Ribeiro Sampaio. Certas tribus, com alta incidência da moléstia passaram a ser cahamadas também "Purú-purús", o mesmo acontecendo com o rio onde habitavam - Rio Purús. 2 A doença existe na bacia do Rio Solimões e seus principais afluentes: Javari, Juruá, Purús, Içá, Japurá, e Negro. Por esses rios, o fóco da dermatose se continua nos países limitrofes com o Brasil: Guianas, Venezuela, Colombia, Perú (Equador e Bolivia. 3 Desde 1890 essa dermatose foi relacionada à pinta (carate ou mal del pinto por P. S. de Magalhães, idéa essa depois defendida por Juliano Moreira, Carlos Chagas, Roquete Pinto, Wappeus, O. da Fonseca Filho, Da Matta, Brumpt e outros, baseados na semelhança clínica e na terapêutica. Recentemente (1945, essa provavel identidade das duas dermatoses, recebeu fundamento sorológico de Biocca (que verificou a positividade das reações de Kline e Kahn em doentes de purú-purú, e, pelo presente trabalho, recebe base clínico-epidemio-anatomo-patológica. 4 Sob o ponto de vista clínico, as lesões cutaneas discromicas da moléstia, são de 3 órdens: a lesões papulo-eritemato-escamosas, isoladas ou não, arredondadas, pruriginosas e de bordos nitidos; b lesões maculo-escamosas, maiores mais pálidas, ás vezes já mostrando alterações pigmentares na parte central; c máculas discromod´rmicas, lisas ou ligeiramente escamosas, com maior ou menor alteração pigmentar, as quais assumem diferentes aspéctos, consequentes à hipo - ou hiperpigmentação, variaveis também com a côr do paciente. As colorações predominantes nas manchas, são o branco, o preto e o vermelho, com tonalidades eminentemente variaveis. Embora raramente, nessas extensas dermodiscromias, observa-se superposição de lesões papulo