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Search Results: 1 - 10 of 189 matches for " Queiroga "
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Proposals for the teaching of text production in didactic books: the schooling of Portuguese language
Mariana Queiroga Tabosa
Via Litterae , 2011,
Abstract: This paper discusses how the schooling of Portuguese language occurs in three didactic books of Portuguese, published in the decades of 1980, 1990 and 2000, from the perspective of text production activities. The discussions are supported by referential works from the fields of Education and Linguistics, such as Azevedo & Tardelli (2002); Bakhtin (2003; 2004); Batista (1997; 1999); Choppin (2007); Razzini (2000); Soares (1996; 2001). According to the results of this research, the schooling process of Portuguese language, in the didactic books considered above, discerns three conceptions of language: language as a system, language as an instrument of comunication and language as social interaction. The melange of those conceptions propels because the schooling of Portuguese language derives from complex connections of interlocution, established by curricular policies, policies of production and evaluation of didactic materials, academic theoretical debates and also by organizational models of school culture.
Medium factors affecting extracellular protease activity by Bacillus sp. HTS 102—A novel wild strain isolated from Portuguese merino wool  [PDF]
Ana Catarina Queiroga, Manuela Estevez Pintado, Francisco Xavier Malcata
Natural Science (NS) , 2013, DOI: 10.4236/ns.2013.56A007
Abstract:

The synthesis of an extracellular protease by Bacillus sp. HTS102—a wild strain recently isolated from the wool of Portuguese Merino ewes, was optimized. This protease is thermostable and particularly resistant to harsh environmental conditions—and appears to bear a unique ability to hydrolyze keratin-rich solid materials. Following a preliminary screening for the most relevant medium factors involved in processing, a fractional factorial design (2VI6-1) was applied to ascertain the effects of six relevant parameters—viz. yeast extract concentration, peptone level, inoculum size, stirring rate, temperature and pH. The concentrations of yeast extract and peptone, as well as the incubation temperature and pH were found to play significant roles; and the 2-factor interaction between yeast extract level and pH was also significant. A 2.2-fold increase in the overall level of protease synthesis was eventually attained, with the improved medium relative to the basal medium—which is noteworthy when compared with competing proteases and previous optimization efforts.

Considera??es s?bre a técnica de determina??o do "índice Lipásico Seabra"
Mello, M. I.;Queiroga, Laura T.;
Memórias do Instituto Oswaldo Cruz , 1955, DOI: 10.1590/S0074-02761955000200031
Abstract: a detailed study of seabra's lipasic reagent for the diagnostic of tuberculosis has been made. substrate. the oily emulsion of cotton seed oil containing gum as dispersing agent, presented a ph variation to the ampoulles examined. in these belonging to the same cartoon as well as in those from different cartoons the values obtained electrometrically ranged from ph 5.8-6.4 (table i). these variations lead us to presuppose: 1) instability of the oily emulsion in gum; 2) spontaneous hydrolysis of the oil; 3) different batches or technique of the oil extraction, or different sources. buffer: the same variability observed with substrate was found for the buffer. in cherry & crandall's method the buffer is ph 7.0. the saline solution from seabra's oscillated from ph6.25-6.9 (table ii). titration - end point. a colorimetric comparison between the sample and the blank as suggested by seabra becomes very difficult. the end point in the presence of serum, when phenolphtalein is used as indicator, is very difficult to compare with the blank containing water. conclusion. the differences observed in the results when the same serum was used, must be due to the variations observed with seabra's reagents.
Correla??es entre as características obtidas in vivo por ultra-som e as obtidas na carca?a de cordeiros terminados em confinamento
Cartaxo, Felipe Queiroga;Sousa, Wandrick Hauss de;
Revista Brasileira de Zootecnia , 2008, DOI: 10.1590/S1516-35982008000800022
Abstract: the objective this study was to evaluate the correlation between traits obtained real time ultrasound and those obtained in the carcass of feedlot finished lambs. forty eight no castrated, woolless crossbred santa inês lambs with initial 20.0 kg lw and 103 days old. the measures obtained by ultrasound in real time were determined using by aloka 500ssd ultrasound machine, equipped with 3.5-mhz linear transducer. before the slaughter, using the real time ultrasound, were measured between at 12th - 13th ribs of the lambs the subcutaneous fat thickness (usft) and longissimus muscle area (ulma), slaughter body weight (sbw) and the corporal condition (cc). after the slaughter were obtained the hot carcass weight (hcw), internal fat percentage (ifp), hot carcass dressing (hcd), carcass subcutaneous fat thickness (csft) and the longissimus muscle area (clma). there was correlation between traits measured by real time ultrasound and those obtained in the carcass, except for sbw vs csft (0.22) and hcw vs csft (0.33). highly correlation was observed between longissimus muscle area obtained by real time ultrasound and the same measure determined in the carcass. the measures of usft and csft showed also significant correlation. the use of the ultrasound was an efficient method to estimate, in real time, the loin eye area and fat thickness of the lambs.
COLLABORATIVE PHOTOJOURNALISM IN A TIME OF CONVERGENCE
José Afonso da Silva Jr.,Eduardo Queiroga
Brazilian Journalism Research , 2010,
Abstract: This article addresses the emergence of contemporary collective photographic practice linked to photojournalism. As a theoretical framework, intersections are made with the consolidation of a new image system, recovering the previous history of photography and its interaction with journalism. In this sense, it aims to work initially with a set of characteristics and constraints which act together to define the problem. In addition, it presents a case analysis, the Cia. da Foto (Photo Company), and shows how it represents the consolidation and/or the contradictions of the phenomenon.
FOTOJORNALISMO COLABORATIVO EM TEMPO DE CONVERGêNCIA
José Afonso da Silva Jr.,Eduardo Queiroga
Brazilian Journalism Research , 2010,
Abstract: O presente artigo visa abordar o surgimento dos coletivos fotográficos contemporaneos e sua prática vinculada ao fotojornalismo. Estabelecem-se, neste sentido, cruzamentos teóricos com a consolida o de um novo regime de constru o da imagem, recuperando-se precedentes da história da fotografia na sua intera o com o jornalismo. Procura-se assim trabalhar inicialmente um conjunto de características, bem como se formam os condicionantes, que colaborem para a delimita o e compreens o do problema. Apresenta-se ainda um caso de análise, da Cia. de Foto, procurando indicar as consolida es e/ou contradi es do fen meno.
ecnologias sobre opera es de semeadura e colheita para a cultura do gergelim (Sesamum indicum L.) = Technologies on operations of sowing and harvest for the culture of sesame (Sesamum indicum L.).
Vicente de Paula Queiroga,Tarcísio Marcos de Souza Gondim,,Diego Antonio Nóbrega queiroga
Agro@mbiente On-line , 2009,
Abstract: O gergelim (Sesamum indicum L .) é uma das primeiras espécies domesticadas pelo homem, sendo na atualidade uma das dez principais oleaginosas do mundo. Cultivado em uma área total em torno de oito milh es de hectares, o principal produto do gergelim é a semente. De elevado valor nutricional para alimenta o humana, e de propriedades medicinais, as sementes do gergelim s o fontes de vitaminas (complexo B), ricas em minerais (cálcio, fósforo, magnésio, sodio, zinco e selênio), de óleo (50%) composto por ácidos graxos insaturados oléico, 40% e linoléico, 41%) e substancias antioxidantes como a sesamina, a sesamolina e o tocoferol que imprimem resistência a ranci ca o. A t orta ou farelo do gergelim é rica em aminoácidos importantes, tais como metionina, cistina, arginina e leucina tornando-se uma excelente fonte de proteínas (39%). O gergelim é uma planta de fácil cultivo com cultivares de ciclo rápido, entre 90 a 130 dias. Informa es contidas nesta nota técnica podem contribuir para o agronegócio do gergelim e para a produ o em pequena escala, explorando o potencial do gergelim numa grande perspectiva de atividade econ mica, especialmente para o Semi-árido do Nordeste, ou como “cultura de safrinha” nas condi es do Cerrado. Objetivou-se destacar as seguintes tecnologias adaptadas ao cultivo do gergelim: diferentes plantadeiras, importancia da colheita sincronizada, diferentes formas de trilha e secagem. Demonstra-se que a simples introdu o da segadora-atadora (rendimento de 2 ha homens -1) para realizar o corte das plantas, no ponto de colheita poderá incrementar signi cativamente a área plantada de gergelim no Brasil, mesmo com as cultivares de gergelim deiscente em uso. A verticaliza o da produ o do gergelim ca na dependência das modi ca es dos costumes alimentares e sociais da popula o, pois o mercado nacional é limitado e por este motivo n o valoriza tanto a qualidade do gergelim como o mercado internacional. Atualmente, mais de 60% do consumo de gergelim no Brasil é importado. = - The sesame (Sesamum indicum L.) is one of the rst species domesticated by humans, being nowadays one of the top ten oil plant in the world. Planted in an area around eight million hectares, the main product is the sesame seed. High nutritional value for food, and medicinal properties of sesame seeds are sources of vitamins (B vitamins), rich in minerals (calcium, phosphorus, magnesium, sodium, zinc and selenium), oil (50%) composed of unsaturated fatty acids (oleic (40%) and linoleic (41%)) and antioxidants such as sesamin, the sesamoline the tocopherol that p
Survey of the castor bean production (Ricinus communis L.) in a collection of producers from five counties of Bahia State. = Levantamento da produ o de mamona (Ricinus communis L.) em uma amostra de produtores em cinco municípios do Estado da Bahia.
Vicente de Paula Queiroga,Robério Ferreira dos Santos,Diego Antonio Nóbrega Queiroga
Agro@mbiente On-line , 2011,
Abstract: The objective of this study was to verify the situation of the culture of castor bean from a collection of producers located in five counties of Bahia state, highlighting the technical conditions of production and commercialization of the product, beyond its social aspects. Twenty-five castor bean producers were interviewed during the 2005 agricultural year by a team of researchers from the Embrapa Cotton. A present questionnaire with 15 variable questions pertaining to agro-economic and social-economic was applied to producers with the objective to diagnose the agricultural social-economic profiles of theproducers of castor bean that are used for the production of berries to be used within the energy market of the Program of Biodiesel and Ricin chemistry. Data analysis concluded that the family farmers of Bahia have the culture of castor oil as, a major source of income, but the cultivation techniques, promising cultivars, and oil content are underutilized. It was shown that a technology gap can be solved by a adopting a differential pricing policy that is based on a feasibility comprehensive recovery program that increases the ricin culture productivity throughout the production chain, reduce costs, and increase the oil content of cultivars.ResumoObjetivou-se com este estudo verificar a situa o da cultura da mamona em uma amostra de produtores levantados em cinco municípios localizados no noroeste do estado da Bahia (S o Gabriel, Irecê, Lap o, Ibititá e Cafarnaum), destacando-se as condi es técnicas de produ o e de comercializa o do produto, além dos seus aspectos sociais. Um total de 25 produtores de mamona foi entrevistado no ano agrícola de 2005, por uma equipe de pesquisadores da Embrapa Algod o. Um questionário preestabelecido com 15 variáveis agron micas e socioeconon micas foi aplicado junto aos produtores, visando o diagnóstico do perfil agrossocioecon mico dos produtores de mamona que est o destinando sua produ o de bagas para atender o mercado energético do Programa de Biodiesel e de Ricinoquímica. Pela análise dos dados, concluiu-se que os produtores familiares baianos têm na cultura da mamona, uma das principais fontes de renda, cujas técnicas de cultivo, cultivares promissoras e seu teor de óleo, encontram-se subutilizados. Ficou evidenciado um atraso tecnológico que pode ser solucionado mediante uma política de pre o diferencial, visando à viabilidade de um amplo programa de recupera o da ricinocultura que contemple aumento de produtividade em toda cadeia de produ o, redu o de custos e eleva o do teor de óleo das cultivares util
Model-Derived Dispersal Pathways from Multiple Source Populations Explain Variability of Invertebrate Larval Supply
Carla P. Domingues, Rita Nolasco, Jesus Dubert, Henrique Queiroga
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0035794
Abstract: Background Predicting the spatial and temporal patterns of marine larval dispersal and supply is a challenging task due to the small size of the larvae and the variability of oceanographic processes. Addressing this problem requires the use of novel approaches capable of capturing the inherent variability in the mechanisms involved. Methodology/Principal Findings In this study we test whether dispersal and connectivity patterns generated from a bio-physical model of larval dispersal of the crab Carcinus maenas, along the west coast of the Iberian Peninsula, can predict the highly variable daily pattern of wind-driven larval supply to an estuary observed during the peak reproductive season (March–June) in 2006 and 2007. Cross-correlations between observed and predicted supply were significant (p<0.05) and strong, ranging from 0.34 to 0.81 at time lags of ?6 to +5 d. Importantly, the model correctly predicted observed cross-shelf distributions (Pearson r = 0.82, p<0.001, and r = 0.79, p<0.01, in 2006 and 2007) and indicated that all supply events were comprised of larvae that had been retained within the inner shelf; larvae transported to the outer shelf and beyond never recruited. Estimated average dispersal distances ranged from 57 to 198 km and were only marginally affected by mortality. Conclusions/Significance The high degree of predicted demographic connectivity over relatively large geographic scales is consistent with the lack of genetic structuring in C. maenas along the Iberian Peninsula. These findings indicate that the dynamic nature of larval dispersal can be captured by mechanistic biophysical models, which can be used to provide meaningful predictions of the patterns and causes of fine-scale variability in larval supply to marine populations.
índice lipásido Seabra: seu valor no diagnóstico da tuberculose
Mello, Maria Isabel;Queiroga, Laura T.;Marcchesi, Paulo;
Memórias do Instituto Oswaldo Cruz , 1956, DOI: 10.1590/S0074-02761956000200006
Abstract: the determination of blood lipase has been proposed by seabra as a method for detecting predisposition to initial or subsequent stages of tuberculosis; normal subjects having high titers (8-12 units), tuberculous patients low ones (5-7), falling to zero in advanced stages of the disease. an assay of the method has been made by the aa. in sera of 238 non tuberculous subjects (419 tests) and 207 tuberculous ones (456 tests) following the technical procedures described by seabra. all of them had their roentgenographies taken at the same day of blood collection. factors interfering with blood lipase values in tuberculosis are discussed. a relationship between the course of the disease and the serum lipase could not be confirmed. high and low values were found in initial as well as in advanced cases. our results are in agreement with those recorded in the literature (figs. i and ii). it seems that the general condition, rather than pulmonary lesions are responsible for the blood lipase values. there was no direct relationship between blood lipase titer and severity of pulmonary tuberculosis; however the data presented in this paper do not agree with such correlation, stated by seabra, fernandes and vicente.
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