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Search Results: 1 - 10 of 87967 matches for " Maria Silvia;Alexandre "
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Doen?as músculo-esqueléticas, trabalho-esqueléticas, trabalho e estilo de vida entre trabalhadores de estilo de uma institui??o pública de saúde
Monteiro, Maria Silvia;Alexandre, Neusa Maria Costa;Rodrigues, Cinthia Mendes;
Revista da Escola de Enfermagem da USP , 2006, DOI: 10.1590/S0080-62342006000100003
Abstract: this is a cross-sectional study developed with 651 workers of various occupations. they answered a questionnaire covering general, labor and lifestyle data, in addition to the work ability index, which has been developed by researchers from finland. in terms of sociodemographics, the analysis of the factors associated with the occurrence of musculoskeletal disorder revealed them to be female, older, and with low level of schooling. as for labor characteristics, the disease was associated with those individuals with physically demanding work, longer working hours on a second job and longer working hours at the institution itself. regarding lifestyle, the characteristics associated with the occurrence of the disease were obesity, long housework hours and absence of leisure activities.
Estimativa de valores corrigidos e o efeito da corre??o pelo erro de medida em dados dietéticos obtidos por Questionário de Frequência Alimentar para Adolescentes (QFAA)
Voci,Silvia Maria; Enes,Carla Cristina; Romero,Alexandre; Slater,Betzabeth;
Ciência & Saúde Coletiva , 2012, DOI: 10.1590/S1413-81232012000200019
Abstract: the scope of this study was to estimate calibrated values for dietary data obtained by the food frequency questionnaire for adolescents (ffqa) and illustrate the effect of this approach on food consumption data. the adolescents were assessed on two occasions, with an average interval of twelve months. in 2004, 393 adolescents participated, and 289 were then reassessed in 2005. dietary data obtained by the ffqa were calibrated using the regression coefficients estimated from the average of two 24-hour recalls (24hr) of the subsample. the calibrated values were similar to the the 24hr reference measurement in the subsample. in 2004 and 2005 a significant difference was observed between the average consumption levels of the ffqa before and after calibration for all nutrients. with the use of calibrated data the proportion of schoolchildren who had fiber intake below the recommended level increased. therefore, it is seen that calibrated data can be used to obtain adjusted associations due to reclassification of subjects within the predetermined categories.
Work capacity evaluation among nursing aides
Monteiro, Maria Silvia;Alexandre, Neusa Maria Costa;Milani, Daniela;Fujimura, Fernanda;
Revista da Escola de Enfermagem da USP , 2011, DOI: 10.1590/S0080-62342011000500021
Abstract: work force aging generates the need to develop studied with the purpose to evaluate work capacity. the objective of this study was to analyze the work capacity of the nursing aides of a public health institute. a cross-sectional study was developed on the work capacity of these professionals regarding their demographic, work and lifestyle characteristics (n=241). a univariate logistic regression analysis was performed with inadequate work capacity (score below 37) as the dependent variable. there was an association with age (the eldest), work time at the institution (the oldest), body mass index (obesity) and item 1 of the work capacities index: present work capacity. this information can be used to create preventive measures and restore work capacity.
Caracteriza??o do material particulado fino e grosso e composi??o da fra??o inorganica solúvel em água em S?o José dos Campos (SP)
Souza, Patricia Alexandre de;Mello, William Zamboni de;Mariani, Rauda Lúcia;Sella, Silvia Maria;
Química Nova , 2010, DOI: 10.1590/S0100-40422010000600005
Abstract: air samples of fine (pm2,5) and coarse (pm2,5-10) particulate matter were collected in s?o josé dos campos from february 2004 to february 2005. average pm10 mass concentrations was 31.2 ± 14.0 μg m-3, half of which belonging to the pm2.5 fraction. ammonium and so42- were predominantly found in the fine fraction. average (nh4)2so4 concentration was estimated to be about 2.9 μg m-3. chloride, na+ and no3- were mostly associated with pm2,5-10. chloride deficits with respect to sea-salt cl/na ratio were found in both size fractions.
Varia??es temporais do material particulado inalável fino e grosso e íons inorganicos solúveis em S?o José dos Campos, SP
Souza, Patricia Alexandre de;Mello, William Zamboni de;Mariani, Rauda Lúcia;Sella, Silvia Maria;
Revista Brasileira de Geofísica , 2011, DOI: 10.1590/S0102-261X2011000100005
Abstract: pm2,5 and pm2,5-10 samples were collected at s?o josé dos campos (s?o paulo) from february 2004 to february 2005. during this time there were two periods of drought, one lasting for 25 consecutive days and a second one for 38 days. the later exhibited higher pm concentrations values than the first one. data were divided into two groups, one comprising all measurements carried out during the 63 days without rain (dry period) and a second one comprising the remaining data (regular period). the pm2,5 and pm2,5-10 average concentrations were respectively 23 ± 7.5 and 19 ± 7.9 μg m-3 during dry period and 14 ± 7.9 and 13 ± 7.9 μg m-3 during regular period. there was a day-of-week variation with highest average concentrations on wednesday (pm2.5) and thursday (pm2.5-10) and lowest on sunday. the pm2,5-10 exhibited the most pronounced variation suggesting an association with vehicular emissions. during both dry and regular periods, average so4-2 and nh4+ concentrations were about 5 times higher in the fine than in the coarse fraction. pm2,5 ionic concentrations, especially that of k+, were higher in the dry period compared to regular one (except for cl-, na+ and mg2+). hierarchical cluster analysis and backward air mass trajectories indicate that during the dry period no3-, so42-, nh4+ and k+ associated with pm2.5 are significantly influenced by continental sources.
DISTRIBUTION OF METALS IN CABE A RIVER WATERS, TRIBUTARY AT THE CORUMBATAí RIVER BASIN, SP = DISTRIBUI O DE METAIS NAS áGUAS DO RIO CABE A, TRIBUTáRIO NA BACIA DO RIO CORUMBATAí, SP
Eduardo Beraldo de Morais,Samia Maria Tauk-Tornisielo,Alexandre Augusto Oliveira Santos,Silvia Elena Ventorini
Holos Environment , 2012,
Abstract: Water samples were collected with monthly frequency from April 2007 to March 2009 at five sampling points in the Cabe a River and two points in Passa Cinco River, both tributaries at the Corumbataí River Basin, SP, and the distribution of metals Al, Cd, Cr, Cu, Fe, Mn, Ni, Pb , Zn, Ca and Mg was evaluate. These elements were quantified by atomic emission spectrometry and the results were analyzed by multivariate statistical technique (principal component analysis), relating the values with the dry and rainy seasons. The metals Cr, Cu and Ni were not detected and Cd and Pb were detected in 8.3% and 10.1% of the samples, respectively, and the values were above those permitted by CONAMA Resolution 357/2005 for Class 2 Rivers. The values of Fe and 36.9% of the values for the Al also exceeded the limit established by legislation. These two metals are strongly influenced by soil characteristics of the studied area. Zn concentrations were below the limit from standard from CONAMA Resolution, but the presence of this element can be related to the lack of riparian vegetation and intense agricultural occupation, especially with sugar cane. Only six samples have values above the limit established by legislation. The highest values of Ca were observed in the rainy season in sampling points located in areas of exploitation of lime and sugar cane cultivation in which liming is frequent. = Amostras de água foram coletadas, com frequência mensal no período de abril de 2007 a mar o de 2009, em cinco pontos de amostragem no rio Cabe a e dois pontos no rio Passa Cinco, ambos tributários na bacia do rio Corumbataí, SP, para avaliar a distribui o dos metais Al, Cd, Cr, Cu, Fe, Mn, Ni, Pb, Zn, Ca e Mg. Esses elementos foram quantificados por meio de espectrometria de emiss o at mica e os resultados foram analisados pela técnica estatística multivariada (análise de componentes principais), relacionando os valores com os períodos seco e chuvoso. Os metais Cr, Cu e Ni n o foram detectados e o Cd e o Pb foram detectados em 8,3% e 10,1% das amostras, respectivamente, e os valores estavam acima do permitido pela Resolu o CONAMA 357/2005 para rios de classe 2. Também estavam em desacordo com essa legisla o os valores de Fe e 36,9% dos valores encontrados para o Al. Esses dois metais s o fortemente influenciados pelas características pedológicas da área estudada. As concentra es de Zn n o extrapolaram os limites, mas a presen a desse elemento pode estar relacionada com a falta de matas ciliares e intensa ocupa o agrícola, principalmente com a cultura canavieira. O Mn teve seus
Spatial variability of total porosity, moisture and soil resistance to penetration of a yellow ultisol Variabilidade espacial da porosidade total, umidade e resistência do solo à penetra o de um Argissolo amarelo
Renildo Luiz Mion,Elivania Maria Sousa Nascimento,Francisco Alexandre de Lima Sales,Silvia Ferreira da Silva
Semina : Ciências Agrárias , 2012,
Abstract: The study of spatial variability of soil attributes is important in areas under different uses and management. The moisture and soil resistance to penetration are considered an indicative parameter of soil physical quality. The objective of this work to study the spatial variability of total porosity, soil resistance to penetration and moisture in an area of rotational grazing sheep. The experiment was conducted in a Yellow Ultisol with a sandy texture in the layers of 0- 0.1, 0.1-0.2 and 0.2-0.3 m. For the determination of properties and soil resistance to penetration was defined a grid, with regular intervals of 30 m, total of 13 points. The total porosity (TP) and the gravimetric soil moisture (SU) were obtained by collecting undisturbed samples (Uhland soil sampler) and disturbed samples, respectively. The soil resistance to penetration (PR) was determined at each point using an electronic georeferenced penetrometer. The results showed that TP had a low variation coefficient in all studied layers. The SU in all evaluated layers and the PR in layers 0-0.1 and 0.1-0.2 m showed a medium variation coefficient. The PR in layer 0.2-0.3 m showed a high variation coefficient showing the average distribution with a high heterogeneity in the data. The attributes TP, PR and SU showed a weak spatial dependency index (SDI) in all evaluated layers. The PR increases as the TP and the SU has a smaller influence on the soil. O estudo da variabilidade espacial de atributos do solo é importante em áreas sob diferentes usos e manejos. A umidade e a resistência do solo à penetra o s o consideradas um parametro indicativo da qualidade física do solo. Objetivou-se com este trabalho estudar a variabilidade espacial da porosidade total, resistência do solo à penetra o e da umidade em uma área de pastejo rotacionado de ovinos. O experimento foi conduzido em um Argissolo Amarelo de textura arenosa nas camadas de 0-0,1, 0,1-0,2 e 0,2-0,3m. Para a determina o dos atributos e resistência do solo à penetra o foi delimitada uma malha, com intervalos regulares de 30 m, perfazendo um total de 13 pontos. A porosidade total (PT) e a umidade gravimétrica foram obtidas através das coletas de amostras indeformadas (amostrador do tipo Uhland) e deformadas, respectivamente. A resistência do solo à penetra o (RP) foi determinada em cada ponto, utilizando um penetr metro eletr nico georreferenciado. Os resultados mostraram que a PT apresentou um coeficiente de varia o baixo em todas as camadas estudadas. A US em todas as camadas avaliadas e a RP nas camadas de 0-0,1 e 0,1-0,2m apresent
Synthesis of esters derived from 2,3,4,6-tetra-O-acetyl-1-[4-(2-hydroxyethyl)-1H-1,2,3-triazol-1-yl]-β-D-glucopyranose
Tiago Alexandre Dinis Pinto,Marilia Silva,Silvia Cunha,Ana Maria Ferreira Oliveira-Campos
European Journal of Chemistry , 2013, DOI: 10.5155/eurjchem.4.1.64-69.735
Abstract: 2,3,4,6-Tetra-o-acetyl-1-[4-(2-hydroxyethyl)-1H-1,2,3-triazol-1-yl]-β-D-glucopyranose was prepared and reacted with several acids, either commercially available or prepared. These included, aliphatic or aromatic acids (phenylacetic acid derivatives, benzoic derivatives), palmitic acid and the protected amino acids N-(benzyloxycarbonyl)glycine and N-(tert-butyloxycarbonyl)-phenylalanine. Two other acids, 2-(3-bromopropoxy)benzoic acid and 2-(5-bromopentoxy)benzoic acid (analogues of salicylic acid were synthesized), whose preparation is also described in this work. The esterification was performed either with N,N'-dicyclohexylcarbodiimide (DCC)/4-dimethylaminopyridine (DMAP) or by reacting the acyl chlorides with the alcohol in the presence of triethylamine. The products were isolated in fair yields and fully characterized by the usual analytical techniques.
Validity and reliability of self-reported weight and height measures for the diagnoses of adolescent's nutritional status
Enes, Carla Cristina;Fernandez, Priscila Maria Fúncia;Voci, Silvia Maria;Toral, Natacha;Romero, Alexandre;Slater, Betzabeth;
Revista Brasileira de Epidemiologia , 2009, DOI: 10.1590/S1415-790X2009000400012
Abstract: purpose: to assess the validity and reliability of self-reported height, weight, and body mass index (bmi) to diagnose the nutritional status of adolescents. methods: the study included 360 public school students of both genders, with ages ranging from 10 to 15 years. adolescents self-reported their weight and height, and these values were later obtained directly by interviewers. the validity of bmi based on self-reported measures was calculated using sensitivity and specificity indexes, and positive predictive value (ppv). agreement between self-reported and measured bmi was evaluated using kappa's weight coefficient, the lin correlation coefficient, and bland-altman and lin's plots. results: both girls and boys underestimated their weight (-1.0 girls and boys) and height (girls - 1.2 and boys - 0.8) (p < 0.001). bmi presented moderate agreement between measured and self-reported values. sensitivity of estimated bmi based on reported measures to classify obese subjects was higher for boys (87.5%) than it was for girls (60.9%), whereas specificity was higher for girls (92.7%) than it was for boys (80.6%). ppv was high only for classification of normal-weight adolescents. conclusions: self-reported measures of weight and height in adolescents do not present valid measures; therefore, they should not be used to replace measured values. additionally, we observed that 10% of obese boys and 40% of obese girls could have remained unidentified if we had used only self-reported measures, emphasizing the effects of the low reliability of self-reporting.
Evaluation of a program to reduce back pain in nursing personnel
Alexandre,Neusa Maria C; Moraes,Marco Antonio A de; Corrêa Filho,Heleno R; Jorge,Silvia Angélica;
Revista de Saúde Pública , 2001, DOI: 10.1590/S0034-89102001000400004
Abstract: objective: to evaluate the effectiveness of a program designed to reduce back pain in nursing aides. methods: female nursing aides from a university hospital who had suffered episodes of back pain for at least six months were included in the study. participants were randomly divided into a control group and an intervention group. the intervention program involved a set of exercises and an educational component stressing the ergonomic aspect, administered twice a week during working hours for four months. all subjects answered a structured questionnaire and the intensity of pain was assessed before and after the program using a visual analogue scale (vas). student's t-test or the wilcoxon rank sum test for independent samples, and chi-square test or the exact fisher test for categorical analysis, were used. the mcnemar test and the wilcoxon matched pairs test were used to compare the periods before and after the program. results: there was a statistically significant decrease in the frequency of cervical pain in the last two months and in the last seven days in the intervention group. there was also a reduction in cervical pain intensity in the two periods (2 months, 7 days) and lumbar pain intensity in the last 7 days. conclusions: the results suggest that a program of regular exercise with an emphasis on ergonomics can reduce musculoskeletal symptoms in nursing personnel.
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