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Search Results: 1 - 10 of 32463 matches for " Ana Candida Vivan;Banzatto "
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Arraste via fecal de nutrientes da ingest?o produzido por baga?o de mandioca hidrolisado
Raupp, Dorivaldo da Silva;Marques, Silvia Helena de Paula;Rosa, Danielle Amorim;Caldi, Carla Marielle;Cremasco, Ana Candida Vivan;Banzatto, David Ariovaldo;
Scientia Agricola , 2002, DOI: 10.1590/S0103-90162002000200005
Abstract: dietary fiber can drag nutrients in faeces. cassava waste from starch industry can be hydrolyzed by an enzymatic process and give origin to a food with high content of insoluble dietary fibers, named partially hydrolyzed cassava waste (hcw). hcw or standard wheat bran (wb) were fed to model growing rats in order to assess their dragging skill of nutrients from the intake of faeces. addition of 5%, 15% or 25% hcw, in replacement of starch, promoted a significant dragging proportion for the overall minerals or proteins; addition of 15% or 25% hcw dragged a significant proportion of lipids and the addition of 25% hcw dragged a significant proportion of digestible carbohydrates. adding 25% wb caused significant dragging of total minerals, protein and digestible carbohydrates, lipids were, however, not dragged with wb treatment. hcw promoted a more pronounced effect as compared to wb in regard to the dragging process of total minerals or proteins for 5% or 15% additions. nervertheless, for high rates, such as 25% additions, both fibrous sources produced similar effects on the dragging of protein, but wb promoted the greatest dragging process of total minerals. no differences between both fiber sources were observed as to their abilities of dragging lipids or digestible carbohydrates into faeces. with high rates (25%) hcw promoted effects similar to wb, allowing to conclude that hcw might be used as an important alternative source of insoluble dietary fiber for the formulation of digestive-functional feeds.
Extra??o de nutrientes e eficiência nutricional de cultivares de aveia, em rela??o ao nitrogênio e à intensidades de corte
Primavesi, Ana Candida;Primavesi, Odo;Godoy, Rodolfo;
Scientia Agricola , 1999, DOI: 10.1590/S0103-90161999000300014
Abstract: the objective of this experiment was to study the effect of nitrogen levels (0, 40, 80, 160, 320 kg ha-1 n) and forage cutting intensities (none, one and two cuts) on nutrient uptake and nutritional efficiency of oats (avena byzantina / avena sativa). the potential mineral uptake by forage and grains and their cycling through their straw, were also evaluated. this experiment was conducted on a hapludox soil, in a split-plot design with complete randomized blocks and four replications, using the s?o carlos and upf 3 oat cultivars. increasing levels of n affected both, the extraction of s and n in the first forage cut of s?o carlos, influenced the k assimilation of both cultivars in the second cut, and s uptake, in both cultivars and cuts. in addition p uptake by straw of both cultivars, and zn, cu and mn by s?o carlos, were altered. the k concentration and extraction decreased from the first to the second cut. potassium uptake was higher when oats were used as forage, at a level of 145 kg ha-1. straw assimiliation of k was about 60 kg ha-1, which returned to the soil, while grain uptake was about 6 kg ha-1. potassium, n, fe and mn were the nutrients of highest demand by both cultivars, which had similar nutritional efficiency and produced the same amount of forage dry matter. for grain production and use of nutrients, upf 3 was more efficient than s?o carlos.
Extra o de nutrientes e eficiência nutricional de cultivares de aveia, em rela o ao nitrogênio e à intensidades de corte
Primavesi Ana Candida,Primavesi Odo,Godoy Rodolfo
Scientia Agricola , 1999,
Abstract: Com o objetivo de verificar o efeito de doses de nitrogênio e regimes de corte na extra o de nutrientes, na eficiência de seu aproveitamento, bem como avaliar o potencial de exporta o de minerais pela forragem e gr os, e a ciclagem de minerais pela palhada, foi conduzido um experimento, em Latossolo Vermelho-Escuro, irrigado, em blocos ao acaso, com quatro repeti es e parcelas sub-subdivididas, com os cultivares de aveia S o Carlos e UPF 3. Doses crescentes de N alteraram a curva de extra o de S e N na forragem do cv. S o Carlos, no primeiro corte, de K na forragem de ambos cultivares, no segundo corte, e de S na forragem acumulada de ambos cortes e cultivares, além da extra o do P pela palha de ambos cultivares e de Zn, Cu e Mn do cv. S o Carlos. Ocorreu redu o na extra o de K pela forragem do segundo corte. A extra o de potássio foi maior pela aveia utilizada como forrageira e menor para a produ o de gr os: foram extraídos em média 145 kg ha-1 de potássio pela forragem, 60 kg ha-1 pela palha que retornam ao solo e 6 kg ha-1 pelos gr os. Dentre os macronutrientes, o potássio, o nitrogênio, e dentre os micronutrientes, o ferro e o manganês foram os mais exigidos pelos dois cultivares, que apresentaram valores de eficiência nutricional semelhantes para todos os elementos, quando utilizados como forragem. Quando utilizados para a produ o de gr os, entretanto, o cultivar UPF 3 foi mais eficiente em utilizar os nutrientes absorvidos.
Raccontare storie per costruire storia: la vicenda della schiavitù nella narrativa di Toni Morrison
Itala Vivan
Storia delle Donne , 2010,
Abstract: In her essay, Telling stories to create history: slavery in Toni Morrison’s fiction, Itala Vivan analyzes the fictional work of the African American writer Toni Morrison and focuses especially on Beloved (1987) and A Mercy (2008), both stories of women slaves. Through individual stories Morrison gives a history of the African American community but also, at the same time, of the whole of America. The writer reveals the consubstantiality of such stories in the creation of modernity whose multiple nature, originally announced by William Edward Burghardt DuBois, is reconfirmed and enriched with elements from the cultural imagery of the American universe. Morrison outlines a history and a story built of unspeakable truths that unveil tragic, multi-layered elements streaming from the veins of America and intertwined with the running blood of slavery. Keywords: Toni Morrison, schiavitù, storia delle donne, America, Beloved, A Mercy, letteratura afroamericana; Toni Morrison, slavery, America, Beloved, A Mercy, African-American literature, women’s history.
Impac o de primeiro molar permanente em paciente com fissura labiopalatina
Ana Paula Fernandes,Cleide Felício Carvalho Carrara,Vivan Agostino Biella Passos,Natalino Louren?o Neto
Stomatos , 2011,
Abstract: O cisto paradentário é um cisto odontogênico inflamatório, relacionado a um dente vital, parcialmente irrompido, associado com pericoronarite. Geralmente acomete terceiros molares inferiores, podendo, mais raramente, ocorrer em outros dentes causando distúrbios na erup o. A impac o de primeiros molares permanentes inferiores é rara e poucos casos s o relatados na literatura. O dente mais frequente a apresentar impac o é o terceiro molar permanente inferior, seguido do terceiro molar superior. Sua etiologia pode envolver tanto fatores locais como sistêmicos. Este trabalho tem como objetivo apresentar um caso de impac o de um primeiro molar permanente inferior causado pela presen a de um cisto paradentário, bem como o tratamento realizado.
Salmonella spp. em carca?as, carne mecanicamente separada, lingüi?as e cortes comerciais de frango
Carvalho, Angela Cleusa de Fátima Banzatto de;Cortez, Ana Lígia Lordello;
Ciência Rural , 2005, DOI: 10.1590/S0103-84782005000600040
Abstract: food of animal origin represents an important role in the epidemiology of human salmonellosis. in spite of the technological improvement, the chicken meat is subjected to bacterial contamination, mainly by microorganisms of the genus salmonella that can be found in the intestinal tract or elsewhere on the chicken body. the aim of this study was to investigate the occurrence of salmonella in chicken meat and cuts from the northeast region of s?o paulo state, brazil. by conventional cultivation microbiological methods, 45 samples of carcasses, 60 samples of mechanically deboned meat (mdm), 25 samples of chicken sausages, 20 samples of chest, and 15 samples of chicken leg and thigh. salmonella was found in 13.3% (6/45) of the carcass, 25% (15/60) of the mdm, 16% (4/25) of the sausages, 30% (6/20) of the chests and 13.3% (2/15) of the tight analysed. the results showed that 33 (20%) out of 165 samples were contaminated by salmonella. therefore, these samples were inappropriate for consumption, according to the brazilian legislation.
Salmonella spp. em carca as, carne mecanicamente separada, lingüi as e cortes comerciais de frango
Carvalho Angela Cleusa de Fátima Banzatto de,Cortez Ana Lígia Lordello
Ciência Rural , 2005,
Abstract: Alimentos de origem animal representam papel fundamental na epidemiologia das salmoneloses humanas. Apesar dos avan os tecnológicos, a carne de frango ainda é passível de contamina o bacteriana, especialmente por microrganismos do gênero Salmonella, que podem encontrar-se albergados no trato intestinal ou em outra parte do corpo das aves. O presente trabalho objetivou pesquisar a ocorrência de Salmonella em carne de frango e derivados procedentes da regi o Nordeste do Estado de S o Paulo. Foram analisadas, através do método convencional de cultivo, 45 amostras de carca as, 60 de carne mecanicamente separada (CMS), 25 de lingüi a de frango, 20 de peito, e 15 de coxa e sobre-coxa. Salmonella spp. foi encontrada em 13,3% (6/45) das carca as, 25% (15/60) das amostras de CMS, 16% (4/25) das lingüi as, 30% (6/20) dos peitos e 13,3% (2/15) das coxas e sobre-coxas analisadas. Do total de 165 amostras analisadas, 33 (20%) apresentaram contamina o por Salmonella estando, portanto, impróprias para o consumo conforme legisla o brasileira.
Saccharomyces cerevisiae glycerol/H+ symporter Stl1p is essential for cold/near-freeze and freeze stress adaptation. A simple recipe with high biotechnological potential is given
Joana Tulha, Ana Lima, Candida Lucas, Célia Ferreira
Microbial Cell Factories , 2010, DOI: 10.1186/1475-2859-9-82
Abstract: We found that cells grown on STL1 induction medium (YPGE) and subjected to cold/near-freeze stress, displayed an extremely high expression of this gene, also visible at glycerol/H+ symporter activity level. Under the same conditions, the strains harbouring this transporter accumulated more than 400 mM glycerol, whereas the glycerol/H+ symporter mutant presented less than 1 mM. Consistently, the strains able to accumulate glycerol survive 25-50% more than the stl1Δ mutant.In this work, we report the contribution of the glycerol/H+ symporter Stl1p for the accumulation and maintenance of glycerol intracellular levels, and consequently cell survival at cold/near-freeze and freeze temperatures. These findings have a high biotechnological impact, as they show that any S. cerevisiae strain already in use can become more resistant to cold/freeze-thaw stress just by simply adding glycerol to the broth. The combination of low temperatures with extracellular glycerol will induce the transporter Stl1p. This solution avoids the use of transgenic strains, in particular in food industry.Preservation by low temperatures is widely accepted as a suitable method for long-term storage of various types of cells. Freezing has become an important means of preservation and storage of strains used for many types of industrial and food processing, including the production of wine, cheese and bread. In particular, frozen dough technology is extensively used in the baking industry, one of the largest in the world due to the central role of bread as a dietary product. In spite of its commercial relevance, yeast mechanisms of tolerance and sensitivity to freeze or near-freeze stress are still poorly understood.Cold, near-freeze and freeze-thaw stress cause various types of damage to the cells, mainly due to the formation of intracellular ice crystals and dehydration during the freezing process, including effects upon the structure of the cell wall, the membrane, and the cellular organelles. Cryo
Toxidez de alumínio e manganes em sorgo sacarino (Sorghum bicolor L. Moench): III rela??es entre P, Mg e AL
Primavesi, Ana Candida P. Aguirre;Malavolta, E.;Primavesi, Odo;
Anais da Escola Superior de Agricultura Luiz de Queiroz , 1987, DOI: 10.1590/S0071-12761987000100034
Abstract: four varieties of sweet sorghum (cmsxs603), br500, sart and br602) were qrown in a modified hoagland's solution in order to supply varyinq levels of al, p and mg. after harvesting dry matter was measured both in roots and tops, and analyses for p, k, ca, mg and al were made. the following was observed: a) tolerance of the varieties was better indicated by root dry matter according to a decreasing order - sart, cmsxs 603, br 500, br 602; b) when the mg concentration in the substrate was raised, tolerance to al toxicity was increased provided p was supplied at a relatively high level; c) maximum and minimum dry matter yield of the tops were associated with p, k, ca, mg and al contents which were different for the four varieties; d) depending upon the variety and of the supply of the other nutrients (p and mg) a stimulation on growth was caused by low al levels in the nutrient solution.
Toxidez de alumínio e manganês em sorgo sacarino (Sorghum bicolor (L.) moench): I. Efeitos do silicato e do carbonato de cálcio em solo podzólico vermelho amarelo var. laras
Primavesi, Ana Candida P. Aguirre;Malavolta, E.;Primavesi, Odo;
Anais da Escola Superior de Agricultura Luiz de Queiroz , 1986, DOI: 10.1590/S0071-12761986000200013
Abstract: three sweet sorghum cultivars (br500, br602 and ample-h-ok) were grown in a red yellow podzolic soil (laras va riation) in the presence and absence of amendments of acidity, limestone and calcium silicate. the three cultivars showed differences in their response to the treatments. the best treatment for leaf production was not necessarily the one associated with higher stalk yelds. limestone was a better means to correct acidity than silicate, as a rule. the cultivar br602, however, showed a higher response to silicate, where as br500 presented a better reaction to limestone. it was found that the plant response to the amendments was due to the reduction in aluminum saturation, and to increases in the effective cation exchange capacity, exchangeacle calcium and soil ph. limestone caused a decrease in the contents of p, ca, mg and k in the dry matter, very likely by dilution effect. as expected, al and mn also decreased. on the other hand silicate application caused a raise in the contents of ca, mg, k, p and al. although visual symptoms of mn toxicity were not observed, the c ontent of this element caused a decrease in dry matter yield. soil aluminum affected dry matter production in the following decreasing order: ample-h-ok, br602, br500 was the most influenced.
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