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Search Results: 1 - 10 of 16996 matches for " Henrique Cesar;Silveira "
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Composi??o química de um resíduo alcalino da indústria de papel e celulose (DREGS)
Almeida, Henrique Cesar;Silveira, Cristian Berto da;Ernani, Paulo Roberto;Campos, Mari Lucia;Almeida, Denice;
Química Nova , 2007, DOI: 10.1590/S0100-40422007000700032
Abstract: dregs is an alkaline solid by-product generated in the cellulose manufacturing industry that could be used to correct soil acidity. the present study aimed to evaluate the chemical composition of this product and some of its properties. the dregs presented 354 g kg-1 of calcium, neutralization capacity of 80.3%, and ph 10.7, besides low concentration of sodium (10.2 g kg-1), lead (62.9 mg kg-1) and cadmium (5.6 mg kg-1). thus, it is a product that can safely be used to increase the soil ph.
Aplica??o da ressonancia magnética de corpo inteiro para o estadiamento e acompanhamento de pacientes com linfoma de Hodgkin na faixa etária infanto-juvenil: compara??o entre diferentes sequências
Nava, Daniel;Oliveira, Heverton Cesar de;Luisi, Flavio Augusto;Ximenes, Andrea Regina da Silveira;Lederman, Henrique Manoel;
Radiologia Brasileira , 2011, DOI: 10.1590/S0100-39842011000100009
Abstract: objective: to compare the performance of the t1, t2, stir and dwibs (diffusion-weighted whole-body imaging with background body signal suppression) sequences in the staging and follow-up of pediatric patients with hodgkin's lymphoma in lymph node chains, parenchymal organs and bone marrow, and to evaluate interobserver agreement. materials and methods: the authors studied 12 patients with confirmed diagnosis of hodgkin's lymphoma. the patients were referred for whole body magnetic resonance imaging with t1-weighted, t2-weighted, stir and dwibs sequences. results: the number of lymph node sites characterized as affected by the disease on t1- and t2-weighted sequences showed similar results (8 sites for both sequences), but lower than dwibs and stir sequences (11 and 12 sites, respectively). the bone marrow involvement by lymphoma showed the same values for the t1-, t2-weighted and dwibs sequences (17 lesions), higher than the value found on stir (13 lesions). a high rate of interobserver agreement was observed as the four sequences were analyzed. conclusion: stir and dwibs sequences detected the highest number of lymph node sites characterized as affected by the disease. similar results were demonstrated by all the sequences in the evaluation of parenchymal organs and bone marrow. a high interobserver agreement was observed as the four sequences were analyzed.
Os efeitos da atividade física na preven??o da hipertens?o
Silveira Júnior, Paulo Cesar Soter da;Martins, Renata Cristina de Almeida;Dantas, Estélio Henrique Martin;
Revista Brasileira de Medicina do Esporte , 1999, DOI: 10.1590/S1517-86921999000200006
Abstract: according to the second brazilian consensus for the treatment of arterial hypertension (1994), about 14 million brazilians have high blood pressure, 15% of them being adults and economically active, thus considerably increasing the social cost of disability and absenteeism at work. pursuant with the fifth report of the joint national committee on detection, evaluation, and treatment of high blood pressure (1993), more than 50 million americans can be labeled as hypertensive, affecting about 18%, of the white adult population, and 35% of the black adult population. systemic arterial high blood pressure in developed countries is the third highest risk factor for cardiovascular disorders, following dyslipidemia and cigarette smoking. great emphasis has been given to non-pharmacological measures, such as changes in life habits for the prevention and control of high tension levels, which should be implemented for all hypertensive individuals, even for those under some drug therapy. among such measures, emphasis goes to the regular practice of physical exercise, a major component for an improved quality of life. this revision article intends to clarify the reader about the trends of thought concerning aerobic physical exercise and its impact on the cardiovascular system and on arterial blood pressure, all related to prescription for cardiovascular rehabilitation of adult hypertensive individuals, such as the finding of an adequate work load.
Gest?o da informa??o em organiza??es virtuais: uma nova quest?o para a coordena??o interorganizacional no setor público
Silveira, Henrique;
Ciência da Informa??o , 2005, DOI: 10.1590/S0100-19652005000200008
Abstract: the article highlights the importance of a reflection about the impacts and possibilities that the concepts related to virtual organisations may bring to the interorganisational coordination in the governmental planning. such interorganisational coordination may contribute to improve the effectiveness of the governmental action, by means of a cooperative informational environment. aspects like, cooperative information management, organisational culture, power and control, boundaries and organizational structures, as well as trust must be object of attention, in case one wants to evolve towards applying the concept of virtual organizations to the public sector.
Buhler, James. Neumeyer, David. Deemer, Rob. Hearing the Movies: Music and Sound in Film History
Carlos Henrique Silveira
Mise au Point : Cahiers de l’Association Fran?aise des Enseignants et Chercheurs en Cinéma et Audiovisuel , 2012,
Abstract: James Buhler et David Neumeyer sont certainement les auteurs les plus importants à publier sur l’analyse de la musique de film depuis les années quatre-vingt-dix aux Etats-Unis. Entre autres contributions, ils ont édité ensemble (avec Caryl Flinn) Music and Cinema, un livre consacré aux différentes perspectives de l’étude de la musique de film. Tous les deux sont professeurs de théorie musicale à l’école de musique de l’université du Texas à Austin (Neumeyer étant aussi professeur à Leslie Wa...
Altera??es climáticas na Europa: efeito nas doen?as parasitárias humanas
Abrantes,Patrícia; Silveira,Henrique;
Revista Portuguesa de Saúde Pública , 2009,
Abstract: the earth?s climate is not constant and its natural changes obey to relatively well defined cycles. the abnormal increase that has recently been observed in temperature largely exceeds the natural climate changes from the last 1000 years. the most recent studies state that the causes of global warming are associated with the increase of anthropogenic emissions of greenhouse gases to the atmosphere. future climate change scenarios indicate that the major impacts on europe will be the increase of temperature, sea-level rise and higher frequency and intensity of extreme events, such as storms, heat waves, floods and droughts. in order to develop adaptation policies that allow an adequate prevention and minimize major climate change impacts it is fundamental to understand their impact on different sectors of society. having in mind the importance to the human health sector, the aim of the present work was to review scientific literature in order to assess the impacts of climate change on human parasitic diseases in europe. the main climate change impacts expected on health are associated with the occurrence of meteorological extreme events probably causing an increase of mortality, the intensification of air pollution with consequences on cardiorespiratory diseases, and the increase of infection diseases, especially water and vector-borne diseases. on the present work we focused on parasitic diseases that are estimated to suffer a more significant climate impact: cryptosporidiosis, malaria and leishmaniasis. following intense rainfall events and floods the risk of waterborne disease is estimated to increase mainly by cryptosporidiosis outbreaks. nevertheless, the good current sewage and public water supply conditions in europe are expected to remain waterborne diseases at low risk. the risk of vectorborne diseases is also expected to increase due to vector geographic distribution changes and longer transmission seasons. the major concerns in europe are focused on the po
Crescimento pró-pobre: análise dos estados brasileiros entre 1995 e 2007
Pinto, Mauricio Silveira;Oliveira, Julio Cesar de;
Revista de Economia Contemporanea , 2010, DOI: 10.1590/S1415-98482010000200005
Abstract: this article analyzes the pro-poor growth in the 27 brazilian states between 1995 and 2007. initially, it examines the recent literature about the subject and presents three indicators to quantify the relationship among growth, inequality and poverty. following, it calculates, through panel data analysis, the growth elasticity of poverty in brazil and across its states. finally, it estimates growth incidence curves (gic) and rates of pro-poor growth (rppg) for three periods: 1995-2007, 1995-2001 and 2001-2007. the results show that poverty has been rapidly diminishing in brazil since 2001, but there is still a huge discrepancy among some states and regions. moreover, there comes up a clear difference between the headcount index and the "deepness" of poverty.
Contextual Interference Effect Depends on the Amount of Time Separating Acquisition and Testing  [PDF]
Jefferson John dos Santos, Flavio Henrique Bastos, Thiago de Oliveira Souza, Umberto Cesar Corrêa
Advances in Physical Education (APE) , 2014, DOI: 10.4236/ape.2014.42014

Considering the critical role permanence has on predictions related to the contextual interference effect, this study sought to determine whether the manifestation of the effect depends on the time interval separating the acquisition phase (AQ) from the retention test (RT). Four groups of blocked (BL) and four groups of random practice (RD) performed 90 trials of a dart throwing task (AQ) and were tested exclusively after 10 minutes (BL10 and RD10), 24 hours (BL24 and RD24), 7 days (BL7 and RD7) or 30 days (BL30 and RD30). In the AQ, blocked groups performed three blocks of trials, with each block consisting of throwing the darts from one of three distances (2 m, 2.6 m and 3.2 m). For the random groups, the trial order was pseudo-randomized. The results indicated superior performance of RD24, compared to BL24, but no difference was found between the groups tested after 10 minutes, 7 days or 30 days. Thus, our results do not support the notion that higher contextual interference promotes immediate learning benefits nor long-term retention of internal representations. Nevertheless, future research should further investigate the processes underlying the contextual interference effect, since short-term gains (24 h) were found.

Ferns and Lycophytes in Two Areas of Ecotone between Seasonal Semideciduous Forest and Mixed Ombrophilous Forest in Campo Mour?o, Paraná, Brazil  [PDF]
Marcelo Galeazzi Caxambú, Henrique Cesar Lopes Geraldino, Ana Claudia Milani Solvalagem
Open Journal of Forestry (OJF) , 2015, DOI: 10.4236/ojf.2015.52018
Abstract: The aim of the present study was to present the wealth, ecological characteristics and the floristic similarity of ferns and lycophytes from two forest areas of the municipality of Campo Mour?o, PR, Brazil. The vegetation of the municipality is characterized mainly by an ecotone between the Seasonal Semideciduous Forest and Mixed Ombrophilous Forest. We recorded 56 species, distributed in 31 genera and 16 families. The most representative families were Pteridaceae (14) and Polypodiaceae (11) and the wealthier genre was Thelypteris (6). The terricolous species were predominant (72%) and the preferential environments were riparian vegetation and forest interior (70%). The flora of Campo Mour?o was more similar to the studies conducted in the state of Rio Grande do Sul, and the cophenetic correlation coefficient (r = 0.9058) showed a consistent adjust. In the principal components analysis (PCA) the variance explained by the two principal components was 72.99%. The wealth found in this study corresponds to approximately 11.4% of the flora of ferns and lycophytes of Paraná. Future contributions are needed to increase the knowledge about the flora of ferns and lycophytes in areas of ecotone, mainly in the region of Campo Mour?o, where the studies are scarce.
Identification of Starting Points in Sampling of Complex Networks
Cesar Henrique Comin,Luciano da Fontoura Costa
Physics , 2010,
Abstract: Because of their large size, several real-world complex networks can only be represented and computationally handled in a sampled version. One of the most common sampling schemes is breadth-first where, after starting from a given node, its neighbors are taken, and then the neighbors of neighbors, and so on. Therefore, it becomes an important issue, given a specific network sampled by the breadth-first method, to try to identify the original node. In addition to providing a clue about how the sampling was performed, the identification of the original node also paves the way for the reconstruction of the sampling dynamics provided the original networks is available. In the current article, we propose and validate a new and effective methodology for the identification of the original nodes. The method is based on the calculation of the accessibility of the nodes in the sampled network. We show that the original node tends to have the highest values of accessibility. The potential of the methodology is illustrated with respect to three theoretical complex networks model as well as a real-world network, namely the United States patent network.
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