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Search Results: 1 - 10 of 90650 matches for " Maria das Gra?as Viana;Rabelo Jr. "
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Síndromes coronarianas agudas na ausência de doen?a arterial coronariana significativa
Pinheiro, Maria das Gra?as Viana;Rabelo Jr., Alvaro;Jesus, Rogerio Santos de;Nascimento, Luciana Cunha;Costa, Ursula Maria Moreira;
Arquivos Brasileiros de Cardiologia , 2005, DOI: 10.1590/S0066-782X2005000100006
Abstract: objective: to assess the clinical characteristics, evolution, and in-hospital complications of patients with acute coronary syndromes (acs) in the absence of significant obstructive coronary artery disease (cad). methods: cross-sectional study of patients hospitalized from august 1996 to march 2002 with acute coronary syndrome, with or without an elevation in the st segment, and with (= 50%) or without (<50%) significant coronary stenosis. their clinical and demographic characteristics and their in-hospital complications were analyzed. results: of the 1351 patients admitted with acute coronary syndrome, 28% had an elevation in the st segment and 72% had no elevation. the patients with acute coronary syndrome with no elevation in the st segment and no significant coronary obstruction were younger, predominantly females, and had a lower frequency of dyslipidemia, previous coronary arterial disease, diabetes mellitus, smoking, and systemic arterial hypertension, when compared with those with significant obstructive lesion. among the individuals with acute coronary syndrome and an elevation in the st segment, smoking was the most prevalent risk factor in patients with nonsignificant obstructive lesion. in regard to complications, recurring ischemia, congestive heart failure, and arrhythmias were more frequent in patients with acute coronary syndrome with no elevation in the st segment and no significant obstructive coronary lesion. conclusion: patients with acute coronary syndrome with no elevation in the st segment and with nonsignificant obstructive coronary lesions are younger, predominantly females, have a greater frequency of risk factors for coronary arterial disease, and a lower incidence of complications as compared with patients with significant obstructive coronary lesion.
Percep??o de mudan?a individual e organizacional: o papel das atitudes, dos valores, do poder e da capacidade organizacional
Neiva, Elaine Rabelo;Paz, Maria das Gra?as Torres da;
Revista de Administra??o (S?o Paulo) , 2012, DOI: 10.5700/rausp1023
Abstract: the purpose of this study was to evaluate the individual and organizational changes perceived by the employees of a public sector organization that suffered interventions for four years. the study had three stages: measurement of organizational characteristics prior to the interventions using questionnaires; investigation of the objectives of a specific intervention and the demand for change mentioned by the organization's employees in order to construct a tool to evaluate the perceived change; and the investigation of the factors that influenced the perception of individual and organizational change. the factors that foretold the perception of organizational changes were organizational characteristics, taken as cultural variables - organizational values and power configurations (measured before and after the intervention); organizational characteristics that were change facilitators; and individual variables, such as attitudes in the face of organizational change (measured after the intervention). the criterion or dependent variable for the study was the perception of organizational and individual change. hierarchical regressions were used to analyze the relations postulated in the study. the results indicated that the organizational values of autonomy and egalitarianism and the attitudes of acceptance and fear were the most frequent predictors of the perceived changes.
Percep??o de mudan?a organizacional: um estudo em uma organiza??o pública brasileira
Neiva, Elaine Rabelo;Paz, Maria das Gra?as Torres da;
Revista de Administra??o Contemporanea , 2007, DOI: 10.1590/S1415-65552007000100003
Abstract: the organizational changes have been pointed out to be an imperative to the organizations nowadays, but its evaluation has been very complicated. the present study has the following objectives: a)measure organizational characteristics- organizational values and power considerations- before and after interventions accomplished in a brazilian and public organization; investigate the organizational capacity for changes and attitudes towards the changes realized after the execution of interventions; investigate the individual and organizational changes realized after the interventions take place. the application of instruments has been carried out in two moments during a period of four years. according to data found, the organization passed through changes in its external image, in its outcomes and in its member's professional competence development. the organization showed low capacity for changes and individual preponderance attitudes were accepted and feared when related to the changes. the cultural organizational characteristics such as organizational values and power relationships were kept stable.
Nerva??o foliar em espécies brasileiras de Myrtaceae Adans
Cardoso, Cristiano Marcelo Viana;Sajo, Maria das Gra?as;
Acta Botanica Brasilica , 2006, DOI: 10.1590/S0102-33062006000300016
Abstract: leaf venation in the subfamily myrtoideae nied. (myrtaceae) was examined and the unique features in each subtribe were defined using leaves of 44 species belonging to subtribes myrtinae (9 genera), myrciinae (5 genera), and eugeniinae (8 genera). although the camptodromous-brochidodromous pattern is dominant among the species, the mixed acrodromous-brochidodromous pattern is also present. for each species, secondary venation pattern, ultimate marginal venation, tertiary venation and areolation, as well as presence or absence of the intramarginal vein were described.
A infancia nos almanaques: nacionalismo, saúde e educa??o (Brasil 1920-1940)
Kuhlmann Jr., Moysés;Magalh?es, Maria das Gra?as Sandi;
Educa??o em Revista , 2010, DOI: 10.1590/S0102-46982010000100016
Abstract: the pharmacy almanacs were a source of diffusion not only for medicines but also for ideas related with a project for the modernization of the brazilian society. in the period 1920-1940 such publications dealt with several topics regarding childhood. progress was associated with a well-cared and disciplined childhood. wet-nurses and the type of breastfeeding were the subject of stubborn debates. besides, it was also common the concern with educational issues in activities like games and pastimes, as well as in articles and texts about literacy campaigns, school maintenance and the publication of didactic materials, alphabets and multiplication tables. the woman is a privileged addressee, both on issues related with medicine and food care, and also on educative activities aimed at children. to care for and to educate a child symbolized the introduction of patterns that modernized many aspects of the brazilian society.
Book Review: SOWELL, Thomas. A o afirmativa pelo mundo: um estudo empírico. Rio de Janeiro: UniverCidade, 2005.
Maria das Gra?as Viana Bragan?a,Zélia Maria Freire de Oliveira
Práxis Educativa , 2006,
Abstract:
Teores de carbamato de etila e outros componentes secundários em diferentes cacha?as produzidas em três regi?es do estado de Minas Gerais: Zona da mata, sul de minas e vale do jequitinhonha
Barcelos, Luciene Viana Ferreira;Cardoso, Maria das Gra?as;Vilela, Fernando José;Anjos, Jeancarlo Pereira dos;
Química Nova , 2007, DOI: 10.1590/S0100-40422007000400043
Abstract: minas gerais is the highest producer of handmade spirits. research has been carried out aiming to contribute to progress. thus, the goal of this work is to evaluate the quality of spirits in three different regions of minas gerais state. we analyzed ethyl carbamate, alcoholic grade, volatile acidity, higher alcohols, aldehyde, esters, methanol, furfural and copper. the values obtained for ethyl carbamate varied from undetectable to 643.5 μg l-1, with only one region not following the legislation (150 μg l-1). most of the compounds in the spirits were present within the limits estabilished by the legislation.
Teste de estimula??o repetitiva no músculo anc?neo para diagnóstico da miastenia grave: mapeamento da sua área de placa motora
Coriolano, Maria das Gra?as Wanderley S.;Amorim Jr, Adelmar Afonso de;Lins, Otávio Gomes;
Arquivos de Neuro-Psiquiatria , 2007, DOI: 10.1590/S0004-282X2007000300024
Abstract: purpose: to map the motor end-plate area of the anconeus muscle and define the best place for positioning the recording electrodes in repetitive stimulation tests (rst) for the diagnosis of neuromuscular transmission disorders. method: the compound muscle action potential of the anconeus was recorded after stimulating the motor branch of the radial nerve that innervates it. by analyzing the waveforms registered at each point of the skin we were able to define the motor end-plate area. results: the motor end-plate area of the anconeus is a line parallel to the ulna border. the best place for placing the "active" recording electrode is about 2cm distal to the olecranon and 1 cm lateral to the border of the ulna. conclusion: performing rst in the anconeus muscle is simple and well tolerated. stimulation of the anconeus almost doesn't move the forearm and the procedure is virtually free of movement artifacts.
Copper, zinc and manganese determination in saline samples employing faas after separation and preconcentration on Amberlite XAD-7 and Dowex 1x-8 loaded with Alizarin Red S
Korn Maria das Gra?as A.,Santos Jr. Aníbal de Freitas,Jaeger Helena V.,Silva Nívia Maria S.
Journal of the Brazilian Chemical Society , 2004,
Abstract: Two procedures have been proposed and compared for separation and preconcentration of trace amounts of manganese, copper, and zinc in saline samples. The procedures are based in the use of Amberlite XAD-7 and an anion-exchanger Dowex 1X8-50 loaded with Alizarin Red S (ARS). In order to obtain quantitative recoveries of metal ions, various experimental parameters such as pH, shaking time, sample volume, amounts of solid phase, effects of concomitants, capacity and cations desorptions from solid phases were optimized. For Amberlite XAD-7 impregnated with ARS (XAD 7-ARS), Mn, Cu, and Zn were quantitatively retained, in the pH range 8.5-10.0, by using 0.50 g of solid phase, stirring time of 5 min and a total mass up to 200 μg of each cation. The sorbed elements were subsequently eluted with 5 mL of 3 mol L-1 HNO3, with recovering over 95%, and a fifty-fold preconcentration factor for Zn and a ten-fold preconcentration factor for Mn and Cu were obtained. For Dowex 1X8-50 impregnated with ARS (Dowex-ARS), Cu and Mn were quantitatively retained in the pH range 8.1 to 9.0, and Zn pH 8.1, by using 0.75 g of solid phase, 90 min of stirring time and a total mass up to 50 μg of each cation. The sorbed elements were subsequently eluted with 20 mL of 2 mol L-1 HNO3, and a five-fold preconcentration factor to Cu and Zn was obtained. The precision of the procedure was determined by running 10 replicate samples, each one containing 250 μg L-1 of each element and the relative standard deviations were 0.2% (Cu), 0.4% (Mn), and 0.4% (Zn), to XAD 7-ARS and 0.3% (Cu), 0.5% (Mn), and 0.3% (Zn), to Dowex-ARS. The procedures were used for determining of Mn, Cu, and Zn in physiological solutions and seawater samples, from Salvador-Bahia. The analyte addition technique was used and the recoveries obtained (3 95%) revealed that the proposed procedure shows good accuracy and precision.
Characterization of xylose reductase extracted by CTAB-reversed micelles from Candida guilliermondii homogenate
Cortez, Ely Vieira;Pessoa-Jr, Adalberto;Felipe, Maria das Gra?as de Almeida;Roberto, Inês Concei??o;Vitolo, Michele;
Revista Brasileira de Ciências Farmacêuticas , 2006, DOI: 10.1590/S1516-93322006000200010
Abstract: xylosereductase (xr) (e.c.1.1.1.21), produced by candida guilliermondii, grown in sugar cane bagasse hydrolysate, was separated directly from the cell homogenate by reversed micelles of cetyl trimethyl ammonium bromide (ctab), attaining a recovery yield of 100% and enrichment factor of 5.6 fold. the extraction conditions were: ph=7.0, electrical conductivity= 14 ms/cm, t=5 oc, 5% (w/w) of hexanol, 22% (w/w) of butanol and 0.15 m ctab. the xr after extraction was stable in ph interval of 6.0-6.5 and its heat inactivation constant was about 6.5 fold higher than that before extraction. the vmax values against both xylose and nadph for xr before and after extraction by reversed-micelles differed about 6%, whereas the difference on km values were more pronounced. the (km)xylose for xr after extraction was about 35% higher than before extraction, meanwhile (km)nadph was about 30% lower after than before extraction. as the km variations indirectly signaled, the xr affinity simultaneously diminishes for xylose and increases for nadph. this could probably explain why the vmax values for xr before and after extraction were quite similar.
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