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Search Results: 1 - 10 of 22692 matches for " Paulo Cesar Barauce;Rodacki "
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Exercícios físicos e redu??o de quedas em idosos: uma revis?o sistemática
Bento, Paulo Cesar Barauce;Rodacki, André Luíz Félix;Homann, Diogo;Leite, Neiva;
Revista Brasileira de Cineantropometria & Desempenho Humano , 2010, DOI: 10.5007/1980-0037.2010v12n6p471
Abstract: falls are associated with morbidity and mortality in older adults. the aim of this systematic review was to identify, describe and analyze the effects of physical exercise programs on the reduction of the risk of falls in adults above the age of 60. for this purpose, the medline/ pubmed, lilacs, and scielo databases available at the site of the latin american center of information in health sciences (bireme) were searched for articles comprising the period between 1999 and 2009 using the following keywords: accidental falls, elderly, exercise. a total of 385 publications were identified and 10 articles that met the criteria established in this study were selected. strength and balance activities were the most frequent components of the exercise programs, in addition to coordination, flexibility and aerobic exercise. however, there was no clear information regarding the frequency, duration and intensity of the sessions. it was concluded that programs combining strength and balance components with other interventions, performed at least twice a week, and monitoring the participants for 3 to 6 months after intervention were the most effective in reducing and preventing falls in older adults. however, a more detailed presentation of some methodological aspects is necessary to permit the reproduction of these studies and the comparison of their results.
Efeito do uso do traje de neoprene sobre variáveis técnicas, fisiológicas e perceptivas de nadadores
Santos, Karini Borges dos;Bento, Paulo Cesar Barauce;Rodacki, André Luiz Félix;
Revista Brasileira de Educa??o Física e Esporte , 2011, DOI: 10.1590/S1807-55092011000200002
Abstract: in open water swimming competitions, athletes are prone to environmental conditions and are frequently exposed to low temperatures, in contrast to what occurs in indoor competitions. in some circumstances the use of special swimming suits is allowed to avoid hypothermia. the aim of this study was to verify the effects of the use of a neoprene swimming suit in comparison to a conventional swimming suit on a number of cinematic and psychophysiological variables. twenty athletes experienced in swimming competitions (12 triathletes and 8 swimmers; 22.0± 6.6 yearsold), whose the performance was 75 ± 7.7% of the national record. athletes performed two maximal and two submaximal 400m crawl simulated competition with a whole body neoprene swimming suit and with a conventional swimming suit. mean speed (vm) stroke length (cb), stroke frequency (fb), swimming index (in), rate of perceived effort (pse), heart rate, and blood lactate concentration (lac) were compared between conditions. the time to perform maximal trials with the use of the neoprene swimming suit was 6.4% shorter than when wearing the traditional swimming suit. fb and the psychophysiological variables remained unchanged, while cb increased in response to the use of the neoprene swimming suit. the use of the neoprene swimming suit in submaximal trials provided smaller fb, fc, lac and pse and larger cb and in in comparison to the use of the traditional swimming suit. the results indicated that the neoprene swimming suit increases performance in biomechanical, physiological and perceptive aspects. the vm increase in maximal efforts does not depend exclusively on changes in fb and cb. possibly, increments of the parameters related to the swimming may have improved the mechanical efficiency of the movement, which may have provided a movement economy that resulted in a better performance.
Physical exercises and risk of fall reduction in elderly: a systematic review
Paulo Cesar Barauce Bento,Andre Luiz Rodacki,Diogo Homann,Neiva Leite
Revista Brasileira de Cineantropometria e Desempenho Humano , 2010,
Abstract: Falls are associated with morbidity and mortality in older adults. The aim of this systematic review was to identify, describe and analyze the effects of physical exercise programs on the reduction of the risk of falls in adults above the age of 60. For this purpose, the Medline/Pubmed, Lilacs, and SciELO databases available at the site of the Latin American Center of Information in Health Sciences (BIREME) were searched for articles comprising the period between 1999 and 2009 using the following keywords: accidental falls, elderly, exercise. A total of 385 publications were identified and 10 articles that met the criteria established in this study were selected. Strength and balance activities were the most frequent components of the exercise programs, in addition to coordination, flexibility and aerobic exercise. However, there was no clear information regarding the frequency, duration and intensity of the sessions. It was concluded that programs combining strength and balance components with other interventions, performed at least twice a week, and monitoring the participants for 3 to 6 months after intervention were the most effective in reducing and preventing falls in older adults. However, a more detailed presentation of some methodological aspects is necessary to permit the reproduction of these studies and the comparison of their results.
Efeitos de exercícios aquáticos e orienta??o nutricional na composi??o corporal de crian?as e adolescentes obesos
Leite, Neiva;Lazarotto, Leilane;Cavazza, Jean Fuzetti;Lopes, Maria de Fátima Aguiar;Bento, Paulo Cesar Barauce;Torres, Renata;Heyde, Maria Emilia D. Von der;Cieslak, Fabrício;Milano, Gerusa Eisfeld;
Revista Brasileira de Cineantropometria & Desempenho Humano , 2010, DOI: 10.1590/S1980-00372010000400002
Abstract: the objective of this study was to analyze the effects of aquatic exercise and nutritional guidance on the body composition of obese children and adolescents. thirty obese children aged 10 to 16 years, with a body mass index (bmi) above the 95th percentile according to the classification proposed by the centers for disease control and prevention (cdc, 2000), were divided into two groups: the first group started learning to swim (gswim, n = 10) and the second group underwent a deep water running program (gdeep, n = 20). weight, height, bmi, bmi z-scores, relative and absolute fat, and relative and absolute lean body mass were evaluated at baseline and after 12 weeks. the program consisted of 12 meetings for nutritional guidance (once a week) and 36 sessions of exercise (three times per week). manova and fisher's exact test were used for statistical analysis, with the level of significance set at p < 0.05. after 12 weeks, gdeep showed a significant reduction in bmi, bmi z-scores and relative and absolute fat, and an increase in relative and absolute lean body mass. significant differences were observed between gdeep and gswim in terms of the reduction in body fat (p = 0.014) and the increase in lean mass (p = 0.006). a program of deep water running together with nutritional guidance may promote significant changes in the body composition of obese children and adolescents due to the cyclic characteristic of this physical activity.
Altera??es posturais em crian?as e adolescentes obesos e n?o-obesos
Silva, Larissa Rosa da;Felix Rodacki, André Luiz;Brandalize, Michelle;Lopes, Maria de Fatima Aguiar;Bento, Paulo Cesar Baraucce;Leite, Neiva;
Revista Brasileira de Cineantropometria & Desempenho Humano , 2011, DOI: 10.5007/1980-0037.2011v13n6p448
Abstract: obesity has reached epidemic proportions over recent years and is related to cardiovascular risk factors, as well as to the occurrence of postural changes in adults, children and adolescents. the objective of this study was to identify the prevalence of postural abnormalities and pain in schoolchildren. fifty-one children and adolescents of both genders aged 9-17 years were divided into an obese (n = 33) and a non-obese group (n = 18). weight and height were measured to calculate the body mass index. a questionnaire was used to assess the presence or absence of pain. postural deviations of the shoulder, head and knees were analyzed by photometry using the corel draw12 software for the determination of angular measures and size. obese boys showed greater postural changes in the region of the knees than non-obese ones (p<0.001). no significant differences in any of the regions analyzed were observed for girls. on the other hand, the prevalence of pain was significantly higher among obese girls than among non-obese girls. we conclude that postural changes are not limited to obese children, but excess weight may increase this deviation. further studies are needed to diagnose these changes during childhood in order to permit early intervention and good posture in adult life.
Warming Power of CO2 and H2O: Correlations with Temperature Changes  [PDF]
Paulo Cesar Soares
International Journal of Geosciences (IJG) , 2010, DOI: 10.4236/ijg.2010.13014
Abstract: The dramatic and threatening environmental changes announced for the next decades are the result of models whose main drive factor of climatic changes is the increasing carbon dioxide in the atmosphere. Although taken as a premise, the hypothesis does not have verifiable consistence. The comparison of temperature changes and CO2 changes in the atmosphere is made for a large diversity of conditions, with the same data used to model climate changes. Correlation of historical series of data is the main approach. CO2 changes are closely related to temperature. Warmer seasons or triennial phases are followed by an atmosphere that is rich in CO2, reflecting the gas solving or exsolving from water, and not photosynthesis activity. Interannual correlations between the variables are good. A weak dominance of temperature changes precedence, relative to CO2 changes, indicate that the main effect is the CO2 increase in the atmosphere due to temperature rising. Decreasing temperature is not followed by CO2 decrease, which indicates a different route for the CO2 capture by the oceans, not by gas re-absorption. Monthly changes have no correspondence as would be expected if the warming was an important absorption-radiation effect of the CO2 increase. The anthropogenic wasting of fossil fuel CO2 to the atmosphere shows no relation with the temperature changes even in an annual basis. The absence of immediate relation between CO2 and temperature is evidence that rising its mix ratio in the atmosphere will not imply more absorption and time residence of energy over the Earth surface. This is explained because band absorption is nearly all done with historic CO2 values. Unlike CO2, water vapor in the atmosphere is rising in tune with temperature changes, even in a monthly scale. The rising energy absorption of vapor is reducing the outcoming long wave radiation window and amplifying warming regionally and in a different way around the globe.
NK Cells and Type 1 Diabetes
Melanie Rodacki,Adolpho Milech,José Egídio Paulo de Oliveira
Clinical and Developmental Immunology , 2006, DOI: 10.1080/17402520600877182
Abstract: Type 1 diabetes (T1D) is characterized by an immuno-mediated progressive destruction of the pancreatic β cells. Due to the ability of NK cells to kill target cells as well as to interact with antigen-presenting and T cells, it has been suggested that they could be involved in one or multiple steps of the immune-mediated attack that leads to T1D. Abnormalities in the frequency and activity of NK cells have been described both in animal models and patients with T1D. Some of these alterations are linked to its onset while others seem to be a consequence of the disease. Here, we discuss the main characteristics of NK cells and review the studies that investigated the role of NK cells in T1D, both in mouse models and humans.
A secre??o residual do peptídeo C faz diferen?a no tratamento do diabetes melito tipo 1?
Rodacki, Melanie;Milech, Adolpho;Oliveira, José Egídio Paulo de;
Arquivos Brasileiros de Endocrinologia & Metabologia , 2008, DOI: 10.1590/S0004-27302008000200020
Abstract: type 1 diabetes is a chronic disease characterized by progressive destruction of the pancreatic b cells, what leads to insulin deficiency and hyperglycemia. however, a significant secretory function may persist for long periods in a few patients, what is clinically evident through the detection of serum c peptide. this phenomenon might reduce the risk of chronic complications, severe hypoglycemias and allow easier metabolic control. it is possible that these advantages are caused, at least partially, by c peptide itself, acting directly in its target tissues.
Um imperialismo possível: fluxos migratórios e estratégias colonialistas na Europa mediterranea (1870-1914)
Gon?alves, Paulo Cesar;
História (S?o Paulo) , 2011, DOI: 10.1590/S0101-90742011000200016
Abstract: this paper analyses some of the various implications of the migratory flow from the main countries supplying workers during the period known as the new emigration: italy, spain and portugal. considering their peculiarities, the objective is to identify the strategies of each country that transformed this movement into a factor of economic development: conquest of markets, creation and promotion of colonies, use and protection of remittances from emigrated ones. with its kingdom in formation, and the largest source of emigrants, italy had naturally followed the paths that revealed emigration as one of the agents of national prosperity, in contrast to portugal and spain.
Anelídeos poliquetas da plataforma continental norte do Estado de S?o Paulo: I - padr?es de densidade e diversidade específica
Paiva, Paulo Cesar de;
Boletim do Instituto Oceanográfico , 1993, DOI: 10.1590/S0373-55241993000100006
Abstract: density and diversity patterns of the polychaetous annelids from the northern continental shelf of s?o paulo state, brazil, were studied. polychaetous densities were higher in the inner shelf, mainly in the southern transect. temporal variations were observed at the northern and central transects in the 20 and 35 m isobaths, with higher summer values. diversity values were lower in summer and higher during winter in the outer shelf. the inner shelf presented more complex diversity patterns with seasonal fluctuations in lower depths. muddy sediments presented higher densities; diversity and richness were higher in fine sand sediments. coarser sediments presented the highest values of evenness but low diversity. the higher diversity values in the shallowest stations were due to the higher number of species and in the deepest stations to the great evenness.
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