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Search Results: 1 - 10 of 292067 matches for " Maria Célia Borges "
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Higher Education in Brazil and the policies for increasing the number of vacancies from Reuni: advances and controversies
Maria Célia Borges
Educa??o : Teoria e Prática , 2012,
Abstract: This paper presents a discussion on the policies to expand Higher Education, stating the influences of neoliberalism and explaining the contradictions in legislation and reforms at this level of education in Brazil after the 1990s. It questions the model of the New University with regard to the Brazilian reality and the poor investments available for such a reform. It calls attention to the danger of prioritizing the increase in the number of vacancies instead of the quality of teaching, something which would represent the scrapping of the public university. It highlights the contradictions of Reuni, with improvised actions and conditioning of funds, through the achievement of goals. On one hand, it recognizes the increasing number of vacancies in Higher Education and, on the other, it reaffirms that democratization of access requires universities with financial autonomy, well-structured courses with innovative curricula, qualified professors, adequate infrastructure, and high quality teaching, with research aiming the production of new knowledge, as well as university extension.
Estimulantes alimentares para larvas de pacu
Tesser, Marcelo Borges;Portella, Maria Célia;
Revista Brasileira de Zootecnia , 2011, DOI: 10.1590/S1516-35982011000900002
Abstract: the present study aimed to investigate the stimulant effect of five amino acids (alanine, arginine, glycine, histidine and lysine) from betaine and their mixtures on the ingestion rates of formulated diet during the larval development of pacu piaractus mesopotamicus. the statistical results showed significant effect of age and treatment. however, no significant effect was observed for the interaction of both factors. glycine, lysine and betaine are considered good stimulants of the pacu feeding behavior.
Ingest?o de ra??o e comportamento de larvas de pacu em resposta a estímulos químicos e visuais
Tesser, Marcelo Borges;Portella, Maria Célia;
Revista Brasileira de Zootecnia , 2006, DOI: 10.1590/S1516-35982006000700002
Abstract: the effect of visual, chemical and the combination of both stimuli from artemia nauplii and from microencapsulated diet on dry diet ingestion by pacu piaractus mesopotamicus larvae was evaluated in this research. the experiment was analyzed as a 7 x 4 factorial arrangement (seven stimuli and four ages) with two replicates. it was observed effect of larvae age and stimuli, but no interaction (age ′ stimuli) was observed. the chemical effect from artemia and both effects from artemia resulted in higher ingestion rates. an intermediary result was obtained with visual effect from microencapsulated diet. the chemical stimulus from artemia resulted in higher ingestion rates than that obtained with artemia visual stimulus. ingestion rate increased as age increased. chemical and visual stimuli from nauplii and visual stimuli from diet increased microencapsulated diet ingestion by pacu larvae. artemia nauplii offered before the artificial diet may assist weaning. these results opens new study possibilities with neotropical fish larvae precocious weaning.
Por??o servida, heterogeneidade e seus efeitos em medidas sensoriais de dureza em ervilhas em conserva e biscoitos tipo aperitivo
GON?ALVES, Elisabeth Borges;MORAES, Maria Amélia C.;
Ciência e Tecnologia de Alimentos , 2000, DOI: 10.1590/S0101-20612000000200001
Abstract: the amount of material served to panelists and heterogeneity in foods, have ever been a trouble to the sensory analyst. they used to be regarded as interference in results and, sometimes, could explain no difference found in products or non realistic differences. in order to study these aspects, experiments were carried out with pods in brine and little biscuits employing the degree of difference test. the first experiment (exp. i), with pods, showed no difference when employing one or five grains. of course, to employ one grain can not be recommended. the other two experiments, exp. ii and exp. iii, with pods (the second) and little biscuits (the third) had not confirmed increasing of variability in results which could be regarded as related to heterogeneity of materials, and more, there was no evidence of great effects of heterogeneity on the observed averages. then, the amount of material served to panelists and the heterogeneity in materials could not change the conclusions obtained from these experiments.
Por o servida, heterogeneidade e seus efeitos em medidas sensoriais de dureza em ervilhas em conserva e biscoitos tipo aperitivo
GON?ALVES Elisabeth Borges,MORAES Maria Amélia C.
Ciência e Tecnologia de Alimentos , 2000,
Abstract: A quantidade de material servida e heterogeneidade em alimentos têm sido constante fonte de preocupa o para o analista sensorial e comentadas como interferentes nos resultados; por vezes, explicariam a n o detec o de diferen as entre produtos ou detec o de diferen as pouco realistas. De modo a estudar a variabilidade advinda da quantidade de material servida e da heterogeneidade em avalia es sensoriais de dureza, foram realizados experimentos empregando-se o procedimento do grau de diferen a em ervilhas em conserva e biscoitos tipo aperitivo. O experimento I, com ervilhas, n o apresentou diferen as quanto ao emprego de 1 (um) ou 5 (cinco) gr os na por o. Nos experimentos II e III (ervilhas em conserva e biscoitos tipo aperitivo), n o foi confirmado incremento de variabilidade nos resultados que pudesse ser atribuído à heterogeneidade no material, também n o foi evidenciado efeito de heterogeneidade de modo a gerar altera es marcantes nas médias de dureza. Assim, quantidade de por o servida e heterogeneidade do material, nestes casos, n o interferiram nos resultados, em média, de modo a determinar flutua es que se refletissem nas conclus es dos experimentos realizados.
O trabalho de manuten??o em uma prefeitura universitária: entre dificuldades e realiza??es
Coutinho, Maria Chalfin;Diogo, Maria Fernanda;Joaquim, Emanuelle de Paula;Borges, Regina Célia Paulineli;
Psicologia: Ciência e Profiss?o , 2011, DOI: 10.1590/S1414-98932011000100009
Abstract: the last decades of the xx century have been appointed by the intense transformations in the national and international productive sectors, among which stands out the process of productive reorganization. this research aimed at understanding the ways these changes affected a public university in the south of the country, more specifically its university city hall, and also at understanding which senses were attributed to such changes by the public servants of the maintenance area. the technique used to collect information was the focal group. the analysis of content applied to the collected data brought a better understanding about the interviewed servants profile and about the senses they attributed to their work. two categories were delineated: daily/organization of the work and senses of the work. several peculiarities referring to the public service and to the management way of the city hall were found. the interviewed people considered themselves privileged for the stability the public service provided them and understood their work as a source of personal accomplishment and financial support. however, they demonstrated discontent feelings about the lack of recognition of their work by the academic community, to the work in precarious physical and human conditions and also felt embarassed about the stigma of being public servants.
Identification of the GTPase superfamily in Mycoplasma synoviae and Mycoplasma hyopneumoniae
Borges, Clayton Luiz;Parente, Juliana Alves;Pereira, Maristela;Soares, Célia Maria de Almeida;
Genetics and Molecular Biology , 2007, DOI: 10.1590/S1415-47572007000200007
Abstract: mycoplasmas are the smallest known prokaryotes with self-replication ability. they are obligate parasites, taking up many molecules of their hosts and acting as pathogens in men, animals, birds and plants. mycoplasma hyopneumoniae is the infective agent of swine mycoplasmosis and mycoplasma synoviae is responsible for subclinical upper respiratory infections that may result in airsacculitis and synovitis in chickens and turkeys. these highly infectious organisms present a worldwide distribution and are responsible for major economic problems. proteins of the gtpase superfamily occur in all domains of life, regulating functions such as protein synthesis, cell cycle and differentiation. despite their functional diversity, all gtpases are believed to have evolved from a single common ancestor. in this work we have identified mycoplasma gtpases by searching the complete genome databases of mycoplasma synoviae and mycoplasma hyopneumoniae, j (non-pathogenic) and 7448 (pathogenic) strains. fifteen orfs encoding predicted gtpases were found in m. synoviae and in the two strains of m. hyopneumoniae. searches for conserved g domains in gtpases were performed and the sequences were classified into families. the gtpase phylogenetic analysis showed that the subfamilies were well resolved into clades. the presence of gtpases in the three strains suggests the importance of gtpases in 'minimalist' genomes.
Histopathologic features associated with susceptibility and resistance of biomphalaria snails to infection with Schistosoma mansoni
Borges, Claudia Maria C;Souza, Cecília Pereira de;Andrade, Zilton A;
Memórias do Instituto Oswaldo Cruz , 1998, DOI: 10.1590/S0074-02761998000700016
Abstract: resistance and susceptibility of biomphalaria snails to schistosoma mansonisporocysts occur in different degrees. histopathology reflects these diferences. in a state of tolerance numerous sporocysts in different stages of differentiation are seen in the absence of host tissue reaction. however extensive diffuse and focal proliferation of amebocytes with sequestration and destruction of many parasitic structures appear in resistant snails. some snails are totally resistant and when exposed to infecting miracidia may never eliminate cercarie. sequential histopathological examination has revealed that in such cases the infected miracidia are destroyed a few minutes to 24 hr after penetration in the snail. however, b. glabrata that were exposed to s. mansonimiracidia and three moths later failed to shed cercariae, exhibited focal and diffuse proliferation of amebocytes in many organs in the absence of pasitic structures. these lesions were similar to those observed in resistant snails that were still eliminating a few cercariae, with the difference that no recognizable sporocystic structures or remmants were present. histological investigation carried out in similarly resistant b. tenagophila and b. straminea presented essentially normal histologic structures. only occasionally a few focal proliferative (granulomatous) amebocytic reactions were seen in ovotestis and in the tubular portion of the kidney. probably, there are two types of reactions to miracidium presented by totally resistant snails: one would implicate the immediate destruction of the miracidium leaving no traces in the tissues; the other involving late reactions that seem to completely destroy invading sporocysts and leave histological changes.
Produ o de farinha instantanea de mandioca: efeito das condi es de extrus o sobre as propriedades térmicas e de pasta = Cassava instant flour: effect of extrusion conditions on thermal and viscosity properties
Beatriz Helena Borges Lustosa,Magali Leonel,Tatiana Dias Leite,Célia Maria Landi Franco
Acta Scientiarum : Technology , 2009,
Abstract: Com o avan o de tecnologias, existe a possibilidade da introdu o, no mercado, de farinhas de mandioca diferenciadas, como as farinhas instantaneas, sendo esta uma alternativa de grande interesse para as indústrias processadoras de mandioca. Este trabalho teve por objetivo avaliar o efeito da temperatura de extrus o, umidade da farinha e rota o da rosca sobre as propriedades térmicas e de pasta de farinhas de mandioca extrusadas. Os resultados obtidos mostraram efeitos significativos da rota o da rosca sobre a viscosidadeinicial, pico e quebra de viscosidade. O pico de viscosidade foi influenciado pelos três parametros de processo, n o sendo observados efeitos significativos dos parametros sobre a viscosidade final e tendência a retrograda o. As propriedades térmicas das farinhasextrusadas n o apresentaram entalpia de gelatiniza o residual. With the advancement of technology, there is the possibility ofintroduction of differentiated flours, such as cassava instant flour. This alternative has generated great interest from the cassava processing industries. This study aimed to assess the effect of extrusion temperature, moisture content and screw speed on the thermal and viscosity properties of extruded cassava flour. The results showed significant effects of process parameters on the viscosity properties, with effect of screw speed on cold viscosity,viscosity peak and breakdown. The viscosity peak was influenced by the three parameters of extrusion process. No significant effects of operational conditions were observed on the final viscosity and retrogradation. The thermal properties of extruded cassava flours showed no residual enthalpy of gelatinization.
Histopathologic features associated with susceptibility and resistance of biomphalaria snails to infection with Schistosoma mansoni
Borges Claudia Maria C,Souza Cecília Pereira de,Andrade Zilton A
Memórias do Instituto Oswaldo Cruz , 1998,
Abstract: Resistance and susceptibility of Biomphalaria snails to Schistosoma mansoni sporocysts occur in different degrees. Histopathology reflects these diferences. In a state of tolerance numerous sporocysts in different stages of differentiation are seen in the absence of host tissue reaction. However extensive diffuse and focal proliferation of amebocytes with sequestration and destruction of many parasitic structures appear in resistant snails. Some snails are totally resistant and when exposed to infecting miracidia may never eliminate cercarie. Sequential histopathological examination has revealed that in such cases the infected miracidia are destroyed a few minutes to 24 hr after penetration in the snail. However, B. glabrata that were exposed to S. mansoni miracidia and three moths later failed to shed cercariae, exhibited focal and diffuse proliferation of amebocytes in many organs in the absence of pasitic structures. These lesions were similar to those observed in resistant snails that were still eliminating a few cercariae, with the difference that no recognizable sporocystic structures or remmants were present. Histological investigation carried out in similarly resistant B. tenagophila and B. straminea presented essentially normal histologic structures. Only occasionally a few focal proliferative (granulomatous) amebocytic reactions were seen in ovotestis and in the tubular portion of the kidney. Probably, there are two types of reactions to miracidium presented by totally resistant snails: one would implicate the immediate destruction of the miracidium leaving no traces in the tissues; the other involving late reactions that seem to completely destroy invading sporocysts and leave histological changes.
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