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Search Results: 1 - 10 of 7999 matches for " Marisa Irene Siqueira; "
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Sentidos da escolha e da orienta??o profissional: um estudo com universitários
Pinto, Telma Maranh?o Gomes;Castanho, Marisa Irene Siqueira;
Estudos de Psicologia (Campinas) , 2012, DOI: 10.1590/S0103-166X2012000300010
Abstract: the aim is to apprehend senses of choice and vocational guidance, produced by university students. participants were 88 students from two undergraduate courses of a public university, who had attended a vocational guidance program between 2003 and 2008. the study was based on the theoretical and methodological foundations of social historical perspective. the answers to the questionnaire were organized in tables for characterization of the studied population, situation in the course and participation in the program. seven participants were selected for interview guided by instruments "incomplete sentences" and "oral reports on the professional choice and academic career". the process of analysis of the senses was performed by the emphasis on the subjective expressions produced by the students, in conjunction with their contextual and historical conditions, to arrive at core meanings. the results indicate that for the studied group, the professonal guidance program was contributory and relevant to professional and academic choices on the way to higher education and to future career projects.
O que é a escola a partir do sentido construído por alunos
Marques, Patrícia Batista;Castanho, Marisa Irene Siqueira;
Psicologia Escolar e Educacional , 2011, DOI: 10.1590/S1413-85572011000100003
Abstract: in this study we investigate the meaning attributed to school by students. this is a participatory research, with field investigation, interviews and diversified activities, with students of public school from 10 to 13 years, in fundamental education. we conducted our study within a non-formal educational context in a peripheral community in s?o paulo. by using the qualitative analysis it was possible to build up signification nuclei related to a general overview of the school, such as: purpose of the school; school routine; institutional agents; social conditions; parents; society and so on. the results show that school is important as it provides the students with a prospect for a dignified future. however, it reflects an everyday non-satisfying learning, meaningless classes; lack of classes; disrespectful interpersonal relationships; perception of public disinterest; feeling of tiredness lived by teachers and students. this study confirms that, although valued socially, the school shows difficulties fulfilling its role, according to student's perception.
Transplante renal em pacientes infectados pelo HIV
Moreno, Carina Nilsen;Siqueira, Raquel Cruzeiro de;Noronha, Irene L;
Revista da Associa??o Médica Brasileira , 2011, DOI: 10.1590/S0104-42302011000100023
Abstract: this review presents current considerations for renal transplantation in hiv patients. in the last decade, with the advent of highly active antiretroviral therapy (haart), life expectancy of patients infected with human immunodeficiency virus (hiv) has significantly improved, showing a marked decrease in the rates of morbidity and mortality in this population. in this setting, the number of hiv-positive patients with end stage chronic kidney disease requiring dialysis is progressively growing. kidney transplantation, previously considered as absolute contraindication for hiv-infected patients is currently, in the haart era, considered a possible treatment alternative. concerns for the effects of immunosuppressive drugs in these patients and the possible effects on progression of hiv disease, in addition to the risk of opportunistic infections and cancer development are widely discussed. clinical experience in the haart era shows that use of immunosuppressive drugs does not adversely affect hiv-seropositive patients. furthermore, several transplant centers have reported improved patient and graft outcomes for kidney transplant recipients infected with hiv. in summary, results obtained so far are encouraging, supporting that renal transplantation, following specific selection criteria, can be considered an alternative of renal replacement therapy in hiv-infected patients.
Contribution to the study of immune hemolysis by toad complement
Gennari, Marisa;Reis, Moema H.;Ferreira, Vera C. A.;Siqueira, Maria;Bier, Otto G.;
Memórias do Instituto Oswaldo Cruz , 1982, DOI: 10.1590/S0074-02761982000300010
Abstract: ea (sheep erythrocytes carrying rabbit antibody) are lysed by toad complement under optimal conditions which include a low concentration of cells (1.54 x 10*8/ml), a low temperature of incubation (30°c) and the same amounts of ca++ and mg++ as required for the titration of guinea-pig complement. kinetic studies of the role of cations mentioned above in immune lysis by toad c have disclosed a fundamental difference as compared to guinea-pig c. in a limited complement system, the lysis by amphibian c is completely blocked by edta, even when the chelating agent is added as late as 15 minutes after zero-time. inhibition by egta is only partial and the findings suggest that mg++ is required not only at the beginning, but also at late stages of the lytic process. it has been speculated that the activation of amphibian complement proceeds mainly by the alternative pathway.
Emiss?o de gases do efeito estufa em diferentes usos da terra no bioma Cerrado
Siqueira Neto, Marcos;Piccolo, Marisa de Cássia;Costa Junior, Ciniro;Cerri, Carlos Clemente;Bernoux, Martial;
Revista Brasileira de Ciência do Solo , 2011, DOI: 10.1590/S0100-06832011000100006
Abstract: the conversion of native forests by cutting and burning into farming areas leads to alterations in the dynamics of soil organic matter, with changes in emissions of greenhouse gases (ghgs: co2, ch4 and n2o) from the biosphere to the atmosphere. these cause an average temperature rise and, consequently, global climate change. the aim of this study was to examine relationships between the fluxes of co2, ch4 and n2o with moisture, microbial biomass and inorganic n forms in soil with different land uses in the cerrado biome (rio verde county, state of goias - brazil). the climate (k?ppen-geiger) was classified as aw and the soil as latossolo vermelho distrófico caulinítico / a clayey kaolinitic oxisol under original cerrado (brazilian savanna) vegetation. the experiment was arranged in a completely randomized design (crd) with four treatments (areas): native vegetation - cerrado (ce); brachiaria pasture (pa); soybean in conventional tillage (sc) and no-tillage (nt) corn followed by millet. no significant differences in annual co2 and n2o emissions were observed between treatments. this can be explained by the variability of gas fluxes due to climate seasonality, with lower emissions in the winter due to low soil moisture. mean emissions of co2 were 108.9 ± 85.6 mg m-2 h-1 , and of n2o 13.5 ± 7.6 mg m-2 h-1 . for ch4 significant differences in the fluxes were only observed in pasture (32 mg m-2 h-1 ), while in the other areas inflows between 46 and 15 mg m-2 h-1 were observed. the ghg fluxes showed close correlation with soil moisture. the n-no3- emissions were significantly correlated with co2-emissions in all areas. considering all treatments together, the three ghg fluxes were correlated with the microbial c and n contents. however, the cmicro: nmicro ratio was not significantly correlated with the ghg flux. only for pasture the co2 and n2o fluxes were correlated with the content of soil inorganic-n. results suggested that the ghg fluxes in the cerrado are related to
Análise bioética do uso de recém-cadáveres na aprendizagem prática em medicina
Gomes, Andréia Patrícia;Rego, Sergio;Palácios, Marisa;Siqueira-Batista, Rodrigo;
Revista da Associa??o Médica Brasileira , 2010, DOI: 10.1590/S0104-42302010000100008
Abstract: objective: the purpose of this article is to carry out, a discussion on the subject of bioethics and cadavers based upon a critic review of literature . methods: a review of literature, was made with a survey of articles between 1977 and 2007 in the sites "biblioteca virtual de saúde", pubmed and scielo, utilizing the keywords: newly deceased patients, newly dead patients, simulators,. this was complemented by a critical evaluation of books published in the area of ethics and bioethics results: the possibility to develop learning without orientation by a supervisor is doubtful.. the utilization of newly dead for learning invasive procedures is very frequent and seldom admitted. these procedures, are usually, carried out secretly, without the knowledge and consent of the family. the ethical aspects of these practices are not discussed in the practical medical education. conclusion: it essential that the ethics of use of recent deceased become a necessary content of graduate education. performance of these procedures by students should always be authorized by family members. the simulators meet the requirements of training. discussions about the ethical and bioethical aspects cannot be separated from practical considerations during the students learning time.
Carbono total e atributos químicos com diferentes usos do solo no Cerrado = Total soil carbon and chemical attributes under different land uses in the Brazilian savanna
Marcos Siqueira Neto,Marisa de Cássia Piccolo,Eric Scopel,Ciniro da Costa Junior
Acta Scientiarum : Agronomy , 2009,
Abstract: A regi o do Cerrado representa uma das maiores áreas cultivada do mundo. Os diferentes usos do solo empregados nesta regi o podem modificar efetivamente as quantidades de matéria organica e alterar a ciclagem dos nutrientes no solo. O objetivo deste estudo foi avaliar oefeito de diferentes sistemas de manejo nas rela es entre o carbono total e os atributos químicos de um Latossolo Vermelho distrófico no Cerrado na regi o de Rio Verde, Estado de Goiás. As áreas estudadas foram cerrad o, pastagem de baixa produtividade, plantio convencional de soja e plantio direto de soja com milho em sucess o. Os valores mais baixos no pH, cátions trocáveis, P-disponível e enxofre foram observados no Cerrad o, contudo foram encontrados os maiores teores de C-total, que apresentaram correla o elevada com os teores de H+AL e a CTC potencial. Nas demais áreas, foram encontradas concentra es mais elevadas de cátions trocáveis, P-disponível e enxofre. Nas áreas onde n o ocorreu o revolvimento do solo e a aplica o do corretivo e dos fertilizantes foi superficial, a estratifica o dos teores de C-total promoveu a reten o dos elementos mais próximos à superfície, o que proporcionou correla es significativas com os atributos químicos do solo. The Brazilian savanna region (Cerrado) is one of the largest cultivated areas of the world. The different land uses in the region can effectively change the quantities of soil organic matter and the cycling of nutrients. The objective of this study was to evaluate theeffect of different land use management systems on the relationship between soil organic carbon and the soil chemical attributes of a Red Latosol (Oxisol) under Cerrado in Rio Verde (Goiás state). The treatments studied were native vegetation (cerrad o), low-productivity pasture, conventional tillage with soybean, and no-tillage with soybean and maize. The smallest values for pH, available P, K, Ca and Mg were observed for the Cerrad o treatment, even if the relatively high C levels increased the potential soil cation exchange capacity. The pasture, conventional tillage and no-tillage treatments showed higher K, Ca, Mg, available P, and S concentrations in the soil. In the areas where soil tillage did not take place and lime and fertilizers were applied superficially, the stratification of the soil organic carbon provides the retention of the elements near to the surface, with significance correlations with the soil chemicals attributes.
Approaches to interim analysis of cancer randomised clinical trials with time to event endpoints: A survey from the Italian National Monitoring Centre for Clinical Trials
Irene Floriani, Nicole Rotmensz, Elena Albertazzi, Valter Torri, Marisa De Rosa, Carlo Tomino, Fillipo de Braud
Trials , 2008, DOI: 10.1186/1745-6215-9-46
Abstract: Source of investigation were the protocols of cancer clinical trials included in the Italian registry of clinical trials from 2000 to 2005. Evaluation was restricted to protocols of randomised studies with a time to event endpoint, such as overall survival (OS) or progression free survival (PFS). A template data extraction form was developed and tested in a pilot phase. Selection of relevant protocols and data extraction were performed independently by two evaluators, with differences in the data assessment resolved by consensus with a third reviewer, referring back to the original protocol. Information was obtained on a) general characteristics of the protocol b) disease localization and patient setting; c) study design d) interim analyses; e) DSMC.The analysis of the collected protocols reveals that 70.7% of the protocols incorporate statistical interim analysis plans, but only 56% have also a DSMC and be considered adequately planned. The most concerning cases are related to lack of any form of monitoring (20.0% of the protocols), and the planning of interim analysis, without DSMC (14.7%).The results indicate that there is still insufficient attention paid to the implementation of interim analysis.The simplest approach for evaluating results of a clinical trial is to plan just one statistical analysis at the end of the study, using a fixed-sample size design: planning and conduction are easy, and the methods for estimation are well established. This approach, which is convenient and effective when all observations are available in a short period of time, is less appropriate when data become available sequentially. This is the case in studies on chronic diseases, like cancer, in which recruitment may last many years, so that the first outcomes can be observed when the accrual is still ongoing. In such situations there might be ethical, practical and economic reasons for looking at the data before the planned end of the study.Data monitoring conducted during a cont
Hotsite de psicologia: informa??es de interesse sobre anomalias craniofaciais
Rafacho, Marina Bigeli;Tavano, Liliam D'Aquino;Romagnolli, Marisa;Bachega, Maria Irene;
Estudos de Psicologia (Campinas) , 2012, DOI: 10.1590/S0103-166X2012000300009
Abstract: the aim of this article was to obtain data to develop a psychology hotsite addressing issues involving malformation and its psychological consequences in the hospital for rehabilitation of craniofacial anomalies - universidade de s?o paulo. an informative interview was held with 200 parents/attendants and 100 patients being treated at the hospital, seeking to define their interest in and possibility of using the hotsite; characterize users' profile: knowledge of and reliability?/trust in the psychologist's actions; and survey of topics of interest. the hotsite was accepted by the interviewees, who were interested not only in the type of service but also believed in it for solving their doubts and anxieties. mentioned topics of interest were: the psychologist's work; aspects of malformation and its psycho-emotional involvement. the results indicate that this type of monitoring is feasible, meeting momentary individual needs, momentary, and sometimes the users' emergency needs.
Sp6 and Sp8 Transcription Factors Control AER Formation and Dorsal-Ventral Patterning in Limb Development
Endika Haro,Irene Delgado,Marisa Junco,Yoshihiko Yamada,Ahmed Mansouri,Kerby C. Oberg,Marian A. Ros
PLOS Genetics , 2014, DOI: doi/10.1371/journal.pgen.1004468
Abstract: The formation and maintenance of the apical ectodermal ridge (AER) is critical for the outgrowth and patterning of the vertebrate limb. The induction of the AER is a complex process that relies on integrated interactions among the Fgf, Wnt, and Bmp signaling pathways that operate within the ectoderm and between the ectoderm and the mesoderm of the early limb bud. The transcription factors Sp6 and Sp8 are expressed in the limb ectoderm and AER during limb development. Sp6 mutant mice display a mild syndactyly phenotype while Sp8 mutants exhibit severe limb truncations. Both mutants show defects in AER maturation and in dorsal-ventral patterning. To gain further insights into the role Sp6 and Sp8 play in limb development, we have produced mice lacking both Sp6 and Sp8 activity in the limb ectoderm. Remarkably, the elimination or significant reduction in Sp6;Sp8 gene dosage leads to tetra-amelia; initial budding occurs, but neither Fgf8 nor En1 are activated. Mutants bearing a single functional allele of Sp8 (Sp6?/?;Sp8+/?) exhibit a split-hand/foot malformation phenotype with double dorsal digit tips probably due to an irregular and immature AER that is not maintained in the center of the bud and on the abnormal expansion of Wnt7a expression to the ventral ectoderm. Our data are compatible with Sp6 and Sp8 working together and in a dose-dependent manner as indispensable mediators of Wnt/βcatenin and Bmp signaling in the limb ectoderm. We suggest that the function of these factors links proximal-distal and dorsal-ventral patterning.
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