Entre a fábrica e a senzala: um estudo sobre o cotidiano dos africanos livres na Real Fábrica de Ferro São João do Ipanema - Sorocaba - SP (1840-1870)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Ultrastructure of the digestive tract in neotropical carnivorous catfish Hemisorubim platyrhynchos (Valenciennes, 1840) (Siluriformes, Pimelodidae)

The surface of the digestive tract of Hemisorubim platyrhynchos was analyzed by scanning electron microscopy. Morphometric studies by transmission electron microscopy were performed to analysis the intestinal microvilli. H. platyrhynchos is a Neotropical carnivorous freshwater catfish featuring a short digestive tract composed of a short esophagus, saccular stomach, and intestine with four regions: anterior, middle, posterior, and rectal. The esophageal surface is constituted by fingerprint-like microridges that anchor the mucosubstances secreted by goblet cells facilitating the passage of food. Goblet cells present the opening to the esophageal lumen, between the microridges. Club cells are in basal epithelium and they do not present the opening to the lumen. The gastric luminal surface shows polygon-shaped epithelial cells which secrete granules by exocytose to protect the gastric surface. The intestinal luminal surface reveals folds that are thicker in the anterior intestine than in the posterior intestine, increasing the absorptive surface area. The intestinal surface presents the microvilli of enterocytes and the opening of goblet cells. The morphometric analysis showed that the microvilli are longer in the anterior intestine, significantly decreasing towards the posterior intestine. The microvilli surface area significantly is greater in the anterior and middle intestine than in the posterior intestine. Numerous openings of goblet cells were observed in the posterior intestine acting in epithelial protection and lubrication. SCANNING 9999:1-8, 2015. © 2015 Wiley Periodicals, Inc.

Valores hematológicos de morcegos hematófagos Desmodus rotundus (E. Geoffroy, 1810) mantidos em cativeiro

Hematological values from captive vampire bats Desmodus rotundus (E. Geoffroy, 1810). Desmodus rotundus is one of the hematophagous bat species that are responsible for significant losses to livestock and has important involvement on public health. The great interest on this bat species made it becomes the target of many investigations a required its maintenance in laboratories. Similarly to others mammals, hematological evaluation has been utilized to assess the health and morbidity state of bats, however there are scarce studies with captive bats. The aim of this study was to investigate the hypothesis that is possible to feed the vampire bat D. rotundus with frozen blood treated with citrate during a long captivity period without hematological dyscrasias. Therefore, complete blood count was performed monthly from 15 adult females kept for 345 days in cages and fed with frozen blood added to citrate. The erythrocyte concentration (9.02 ± 1.43 x1012/L), PCV (0.47 ± 0.08 L/L) and hemoglobin (163.9 ± 31.5 g/L) obtained from free-living bats (immediately after capture) were lower or similar to those obtained after 345 days of captivity, presenting erythrocytes’ count of 11.01 ± 0.82 x1012/L, packed cell volume of 0.50 ± 0.05 L/L and hemoglobin level of 158 ± 10.1 g/L. The total white blood cell (11.09 ± 6.07 x109 /L) and segmented neutrophil counts (9.85 ± 3.5 x109 /L) of free living D. rotundus decreased significantly after 345 days of captivity, with values of 3.98 ± 1.98 and 1.87 ± 978.6 x109 /L respectively, which are similar to bats from temperate regions in hibernation period. This study proved that is possible to feed D. rotundus for long periods of captivity with citrated blood without the occurrence of anemia, erythrocyte or other hematologic dyscrasia

O Brasil entre a história narrativa e a história analítica (1840-1870): civilização, progresso e desenvolvimento

Pós-graduação em História - FCHS

Caracterização e análise das comunidades e infracomunidades de parasitos metazoários de Plagioscion squamosissimus (Heckel, 1840) capturados no reservatório de Promissão, rio Tietê, estado de São Paulo

Pós-graduação em Medicina Veterinária - FCAV

Aniceto dos Reis Gonçalves Viana (1840 - 1914): o linguista em seu tempo

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Letrados da Amazônia Imperial e saberes das populações analfabetas durante a Revolução Cabana (1835-1840)

Neste artigo discute-se como alguns letrados e políticos da Amazônia compreenderam a cultura iletrada na Cabanagem, movimento ocorrido nessa região entre 1835 e 1840. Analisam-se relatórios de presidentes da província do Grão-Pará, estudos da época e centralmente a obra Motins políticos, do historiador e político imperial Domingos Antônio Raiol, o Barão de Guajará. Escrita entre as décadas de 1860 e 1890, a obra descreve as motivações para a guerra cabana pela ótica da ordem imperial, sobretudo após a ascensão do imperador D. Pedro II. Admite-se como hipótese que as mudanças educacionais e sociais, nascidas após os anos de 1870, embora tenham fomentado a criação de novas instituições escolares e ampliado o grau e a abrangência da instrução formal, elas também trouxeram temores na sua condução por se tratar de um local tão revolucionário quanto o Pará. Conclui-se que discutir os saberes cabanos - ainda que pela leitura arrevesada de Raiol - é criticar um tipo de educação formal, compreendendo o quanto ela pode desqualificar conhecimentos e saberes informais de mundo.

Aniceto dos Reis Gonçalves Viana (1840 - 1914): o linguista em seu tempo

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

TAXONOMY OF THE SOUTH AMERICAN DWARF BOAS OF THE GENUS TROPIDOPHIS BIBRON, 1840, WITH THE DESCRIPTION OF TWO NEW SPECIES FROM THE ATLANTIC FOREST (SERPENTES: TROPIDOPHIIDAE)

A taxonomic study on the South American dwarf boas of the genus Tropidophis revealed the existence of two new species in the Atlantic Forest bionic. As a result, we recognize five mainland species, three in the Atlantic Forest and two in northwestern South America. Based on general distribution and morphological orientation, the type locality of T. paucisquamis is restricted to Estacao Biologica de Boraceia (EBB), municipality of Salesopolis, state of Sao Paulo, Brazil; furthermore, a lectotype for T. taczanowskyi is designated. We provide data on the hemipenial morphology of two South American Tropidophis, showing that the quadrifurcate condition described for West Indian taxa also occurs in mainland congeners. The distributions of the three Atlantic Forest species are congruent with patterns of diversification of other vertebrate taxa associated with cold climates prevalent at high elevations. Refugial isolation and riverine barriers may account for such speciation events.

Dynamics of phytoplankton associations in three reservoirs in northeastern Brazil assessed using Reynolds' theory

The aim of the present study was to evaluate the influence of seasonality on the behavior of phytoplankton associations in eutrophic reservoirs with different depths in northeastern Brazil. Five collections were carried out at each of the reservoirs at two depths (0.1 m and near the sediment) at three-month intervals in each season (dry and rainy). The phytoplankton samples were preserved in Lugol's solution and quantified under an inverted microscope for the determination of density values, which were subsequently converted to biomass values based on cellular biovolume and classified in phytoplankton associations. The following abiotic variables were analyzed: water temperature, dissolved oxygen, pH, turbidity, water transparency, total phosphorus, total dissolved phosphorus, orthophosphate and total nitrogen. The data were investigated using canonical correspondence analysis. The influence of seasonality on the dynamics of the phytoplankton community was lesser in the deeper reservoirs. Depth affected the behavior of the algal associations. Variation in light availability was a determinant of changes in the phytoplankton structure. Urosolenia and Anabaena associations were more abundant in shallow ecosystems with a larger eutrophic zone, whereas the Microcystis association was more related to deep ecosystems with adequate availability of nutrients. The distribution of Cyclotella, Geitlerinema, Planktothrix, Pseudanabaena and Cylindrospermopsis associations was different from that seen in subtropical regions and the substitution of these associations was related to a reduction in the eutrophic zone rather than the mixture zone. Published by Elsevier GmbH.

URANS calculations for smooth circular cylinder flow in a wide range of Reynolds Numbers: solution verification and validation

The flow around circular smooth fixed cylinder in a large range of Reynolds numbers is considered in this paper. In order to investigate this canonical case, we perform CFD calculations and apply verification & validation (V&V) procedures to draw conclusions regarding numerical error and, afterwards, assess the modeling errors and capabilities of this (U)RANS method to solve the problem. Eight Reynolds numbers between Re = 10 and Re 5 x 10(5) will be presented with, at least, four geometrically similar grids and five discretization in time for each case (when unsteady), together with strict control of iterative and round-off errors, allowing a consistent verification analysis with uncertainty estimation. Two-dimensional RANS, steady or unsteady, laminar or turbulent calculations are performed. The original 1994 k - omega SST turbulence model by Menter is used to model turbulence. The validation procedure is performed by comparing the numerical results with an extensive set of experimental results compiled from the literature. [DOI: 10.1115/1.4007571]

Plan de recuperación de la lapa majorera (Patella candei d'Orbigny, 1840), la primera estrategia para recuperar una especie marina

La lapa majorera (Patella candei) es un gasterópodo marino, endémico de laMacaronesia, con poblaciones restringidas a las islas Salvajes y Fuerteventura. Es precisamente su reducida área de distribución, el bajo número de efectivos poblacionales y la existencia de factores de riesgo y amenaza sobre la especie, lo que llevó a la Comunidad Autónoma de Canarias a proponer su inclusión en el Catálogo Nacional de Especies Amenazadas y, posteriormente en el Catálogo de Especies Amenazadas de Canarias, en la categoría denominada en peligro de extinción.