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Search Results: 1 - 10 of 176737 matches for " Andre de Lemos; "
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Um 'arquiteto' da historiografia Brasileira: história e historiadores em José Honório Rodrigues
Freixo, Andre de Lemos;
Revista Brasileira de História , 2011, DOI: 10.1590/S0102-01882011000200009
Abstract: this article analyzes the history of brazilian historiography, according to the perspective of josé honório rodrigues (1913-1987), as part of the efforts which began to be made in the 1930s to invest in professional aspects of history as a discipline in brazil - emphasizing, for instance, the central function of historical methodology as an advantage over amateur writings. one of the main contributions of rodrigues consisted of the organization and periodization of a history for brazilian historical research. when composing this historical narrative, he not only organized a past, but also indicated a possible future for what he idealized as a professional field. his project of a historical research institute, which would guarantee adequate theoretical and methodological training to the young brazilian historians, would make history writing depart from more conservative and traditionalist views in order to uncover the true paths of a revolution in the national historical process.
Brain natriuretic peptide and left ventricular dysfunction in chagasic cardiomyopathy
Talvani, Andre;Rocha, Manoel OC;Cogan, John;Maewal, Param;Lemos, James de;Ribeiro, Antonio LP;Teixeira, Mauro M;
Memórias do Instituto Oswaldo Cruz , 2004, DOI: 10.1590/S0074-02762004000600020
Abstract: global left ventricular (lv) systolic dysfunction is the strongest predictor of morbidity and mortality in chagas disease. echocardiography is considered the gold standard for the detection of lv dysfunction, but not always available in endemic areas where chagasic cardiomyopathy is most common. brain natriuretic peptide (bnp) is a neurohormone that has been recently described as a simple and inexpensive diagnostic and prognostic marker for patients with congestive heart failure. chagasic patients (n = 63) and non-infected healthy individuals (n = 18) were recruited prospectively and underwent complete clinical examination, echocardiography and 24-h holter monitoring. bnp was measured from thawed plasma samples using the triage bnp test. we observed high levels of bnp in association with depression of lv ejection fraction, with increase of lv end-diastolic diameter and with lv premature complexes. an elevated concentration of bnp, defined as a concentration of 60 pg/ml or more, had a sensitivity of 91.7%, specificity of 82.8%, positive predictive value of 52.4%, and negative predictive value of 98% for detecting lv dysfunction (lv ejection fraction < 40%).bnp measurement using a simple, relatively inexpensive and rapid test has a promising role in identifying lv dysfunction associated with chagasic cardiomyopathy. equally important, patients with trypanosoma cruzi infection who have low levels of bnp level in plasma have a very low likelihood of severe cardiac involvement, and echocardiography is probably not necessary.
Estudo clínico do quadril n?o tratado na tetraparesia espástica
Catena, Fernanda;Moraes, Eduardo Ramalho de;Lemos, Andre Vitor Kerber Cavalcanti;Yamane, Patrícia Corey;Blumetti, Francesco Camara;Dobashi, Eiffel Tsuyoshi;Pinto, José Antonio;
Revista Brasileira de Ortopedia , 2011, DOI: 10.1590/S0102-36162011001000005
Abstract: objective: to evaluate cp patients considering the hip joint and analyzing the relation between severity, age and scoliosis. methods: a transversal descriptive study was performed in 40 patients (1 to 17 y.o.), 21 (52,5%) female and 19 (47,5%) male from cruz verde association; 19 (47,5%) had history of prematurity; 26 (65,0%) with anoxia; meningitis in 4 (10%), hydrocephalus in 10(25,0%); microcephalus in 15 (37,5%). from the total 38 (95,0%) presented spasticity, 1 (2,5%) athetoid and 1 (2,5%) mixed. according to topographic classification 28 (70,0%) presented tetraparesis and 12 (30,0%) double hemiparesis. all of them are non-ambulators and 38 (95,0%) were classified as gfmcs v and 2 (5,0%) were level iv. the patients were divided in two groups (with or without indications for hip surgical treatment). the hips were analysed by thomas, abduction, and nelaton-galeazzi tests. the scoliosis was clinically analysed considering trunk symmetry and dorsal hump. results: we observed positive correlation between the patients’ scoliosis and hip flexion contracture. there was no difference between the patients’ age and and hip flexion contracture. there was no difference between topographic types and hip contractures. conclusions: we did not find positive correlation between patients’ age and hip contractures; patients with scoliosis present worse hip abduction compromise.
Atividade biológica do lapachol e de alguns derivados sobre o desenvolvimento fúngico e em germina??o de sementes
Souza, Marco Andre Alves de;Silva, Andrea Rosane da;Ferreira, Marcio Alcantara;Lemos, Marcela Jacques de;Ramos, Rafael Gon?alves;Ferreira, Aurélio Baird Buarque;Souza, Sonia Regina de;
Química Nova , 2008, DOI: 10.1590/S0100-40422008000700013
Abstract: the natural quinones lapachol, α-lapachone and β-lapachone, and the synthetic derivative β-lapachone-3-sulfonic-acid were assayed for inhibition of fungal growth (fusarium oxysporum) and germination of lettuce seeds (lactuca sativa l.). β-lapachone has the strongest activity as a germination inhibitor and lapachol shows no effect. β-lapachone, followed by lapachol, are the most active in reducing fungal growth.
Caracteriza??o e impacto clínico tardio do no-reflow associado a interven??o coronária percutanea primária vs. eletiva
Campos, Carlos Augusto Homem de Magalh?es;Ribeiro, Henrique;Ribeiro, Expedito E.;Spadaro, Andre G.;Lemos, Pedro A.;Perin, Marco;Marchiori, Gilberto;Horta, Pedro;Kajita, Luiz J.;Martinez, Eulogio;Ramires, José Antonio F.;
Revista Brasileira de Cardiologia Invasiva , 2010, DOI: 10.1590/S2179-83972010000300012
Abstract: background: despite major advances in interventional cardiology in recent years, no-reflow is still observed during percutaneous coronary interventions (pci), and is associated to a worse prognosis. the objective of this study was to characterize the clinical, angiographic and procedural profile of patients with no-reflow as well as assessing its late clinical impact. methods: from january 2004 to february 2009, patients undergoing pci at the instituto do cora??o (incor), presenting no-reflow at any time during the intervention, were evaluated. patients were divided into two groups: reperfusion no-reflow (associated to primary pci) and interventional no-reflow (associated to elective pci). the probability of death was estimated by the kaplan-meier method and cox regression was used to identify its predictors. results: one hundred and thirty-two consecutive patients were evaluated, 81 in the reperfusion no-reflow group and 51 in the interventional no-reflow group. procedural success was observed in 83.5% of the overall population (80.2% vs. 90.2%, respectively; p = 0.149). the long-term probability of death was estimated at 38.6%, and was higher in the reperfusion no-reflow group (55.8% vs. 11.1%; p = 0.005). in the multivariate analysis, only female gender [hazard ratio (hr) 2.5, 95% confidence interval (95% ci) 1.225.14; p = 0.027) and chronic obstructive pulmonary disease (hr 9.35, ci 95% 1.45-60.14; p = 0.027) were independent predictors of mortality, whereas the prior use of statin was a protective factor (hr 0.15, 95% ci 0.05-0.48; p = 0.002). conclusions: the no-reflow phenomenon was associated with high procedural failure rates and long-term mortality, especially when associated to primary angioplasty.
Evolu??o clínica de pacientes de alto risco cirúrgico submetidos a interven??o coronária percutanea em tronco da coronária esquerda n?o-protegido
Campos, Carlos Augusto Homem de Magalh?es;Ribeiro, Henrique;Spadaro, Andre G.;Esteves, Antonio;Gama, Marcus N.;Lemos, Pedro A.;Perin, Marco;Marchiori, Gilberto;Kajita, Luiz J.;Ribeiro, Expedito E.;Ramires, José Antonio F.;
Revista Brasileira de Cardiologia Invasiva , 2010, DOI: 10.1590/S2179-83972010000400009
Abstract: background: percutaneous coronary intervention (pci) in unprotected left main coronary artery (lmca) disease has proven to be an alternative to coronary artery bypass graft surgery (cabg). however, late clinical results of pci in these patients are scarce in the literature, especially in our country. method: data from a tertiary cardiology center registry, which included patients with contraindications to cabg undergoing lmca pci, from 2002 to 2009, were analyzed. our objective was to evaluate the 1-year mortality. results: a total of 77 subjects were included in this analysis, mean age was 65.4 ± 13.7 years, 59.2% were male, 25% were diabetic, and 3.9% had renal failure requiring dialysis. regarding the angiographic characteristics, 79.6% of lesions were type b2/c, with involvement of the ostium in 47.4% and distal bifurcation in 62.3%. in most cases pci was performed as an emergency procedure (85.5%) and drug eluting stents were used in 17.5% of the patients. hemodynamic support using an intraaortic balloon pump was used in 28.2% of the population. at the end of 1 year the probability of overall survival was 69.7% and almost all of the deaths occurred in the first month of follow-up. conclusion: in this highly selected population with unprotected lmca disease, including high-surgical-risk patients, in clinical emergency situations and with complex lesions, pci is feasible and has acceptable 1-year mortality rates.
Modifica??es evolutivas da necessidade de cirurgia de revasculariza??o miocárdica de emergência em indivíduos submetidos a interven??o coronária percutanea: análise de 9.938 pacientes
Campos, Carlos Augusto Homem de Magalh?es;Yugar, Mila;Petrizzo, Antonia;Ribeiro, Expedito E.;Ribeiro, Henrique;Spadaro, Andre G.;Perin, Marco;Lemos, Pedro A.;Martinez, Eulogio;Marchiori, Gilberto;Ramires, José Antonio F.;
Revista Brasileira de Cardiologia Invasiva , 2010, DOI: 10.1590/S2179-83972010000200011
Abstract: background: percutaneous coronary interventions (pci) in centers without cardiac surgery represent a real option in the current context of interventional cardiology. the purpose of this study was to evaluate changes in the incidence and indications for coronary artery bypass grafting in patients undergoing pci from 1992 to 2005 method: data from 9,938 patients undergoing pci in two centers were divided into three groups: pre-stent period, from 1992 to 1996 (n = 2,500), intermediate period, from 2002 to 2003 (n = 3,711) and more recent period, from 2004 to 2005 (n = 3,727) results: since the advent of stents, an older population (58.2 ± 10.7 years vs. 62.7 ± 11.7 years vs. 67.8 + 11.6 years; p = 0.01), with more complex type b2/c lesions (52.2% vs. 72.7% vs 79%; p < 0.01) is being treated, with a lower rate of acute vessel occlusion (7.8% vs. 1.7% vs. 1.1%; p < 0.01), emergency coronary artery bypass grafting (1.2% vs. 1,1% vs. 0.7%; p < 0.01) and mortality (3.3% vs. 2.2% vs. 2%; p < 0.01). predictors of the need of emergency bypass surgery were multivessel disease [odds ratio (or) 3.42, 95% confidence interval (95% ci) 1.75-6.7), acute myocardial infarction (or 3.65, 95% ci 2.3-5.8) and lesion complexity [type b2/c, american heart association/american college of cardiology - aha/acc (or 3.27, 95% ci 1.6-6.75)]. the use of stents, however, conferred a protective effect against the need of emergency bypass surgery (or 0.58, 95% ci 0.4-0.85) conclusion: advances in technology, devices and adjunctive pharmacotherapy have improved pci, reducing the need of emergency coronary artery bypass grafting.
Comércio: perfil, reestrutura??o e tendências
Almeida, Marilis Lemos de;
Educa??o & Sociedade , 1997, DOI: 10.1590/S0101-73301997000400007
Abstract: this paper aims to provide some reflections about organisational and technological changes in the trade sector. lately, it has increased the number of people employed in this sector which, such as other sectors, is promoting meaningful changes in the labour process. thus, as study on this sector is justified because of this importance in the employment creation. it is important to know how, this employment is created in this sector, who occupies these and what skilfulness the trade sector demands of its workers. in the trade sector case, where the type skill previously demanded was simple, i has been verified that the restructuring ? either taking into account the cases related to the management changes or those in which have been adopted new technologies, or both cases ? occurred without becoming the work more complex and therefore, without promoting a skilfulness increase on the workers involved. the trade case, in which simple tasks are prevailing, suggests that the skilfulness previously demand is a major variable for the reflection about the implications of the restructuring in the relation to the occupational profiles.
Identidade cultural e forma??o individual: a Alemanha do século XIX e a funda??o da pedagogia moderna
Britto, Fabiano de Lemos;
Educa??o & Sociedade , 2012, DOI: 10.1590/S0101-73302012000100014
Abstract: the origins of modern pedagogy and its reverberation within the most recent education theories leads us backwards to german model, that articulates itself in two ways: as a set of pragmatic actions, derived from a series of social and cultural conditions, and as conceptual system, as long as it responds to a new conception of human freedom that came up in the beginning of modern thought. this paper intends to evaluate the imbrications between those two dimensions.
Chovendo na roseira de Tom Jobim: uma abordagem schenkeriana
Almada, Carlos de Lemos;
Per Musi , 2010, DOI: 10.1590/S1517-75992010000200009
Abstract: the present article examines the song chovendo na roseira by brazilian composer ant?nio carlos jobim with focus on the deep structural relationships that exist among melody, harmony, and form. this was accomplished by using procedures of the schenkerian analysis, here adapted for better adjustment to the characteristics of this specific piece. from the analytical process, it is possible to observe a consistent and hierarchical integration among the several melodic-harmonic phenomena present on the musical surface and some of the internal layers, which reveal relationships that are unusual in a popular music piece. it is especially remarkable the ubiquity of the interval of the perfect fourth, which is embedded in several of the aspects of musical construction, in all structural levels considered.
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