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Search Results: 1 - 10 of 347787 matches for " Kelly Samara da;Farias Júnior "
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Sobrepeso/obesidade em adolescentes escolares da cidade de Jo?o Pessoa - PB: prevalência e associa??o com fatores demográficos e socioecon?micos
Farias Júnior, José Cazuza de;Silva, Kelly Samara da;
Revista Brasileira de Medicina do Esporte , 2008, DOI: 10.1590/S1517-86922008000200004
Abstract: objectives: overweight/obesity in childhood and adolescence has been described as one of the greatest public health problems of current times, in recognition of the rapid growth in its prevalence and its relationship with many different health problems. in this idea, the objective of this study was to determine the prevalence of overweight/obesity in high school adolescents from the city of jo?o pessoa, pb, and to analyze its relationship with demographic and socio-economic factors. methods: the study sample consisted of 2,402 high school students (public and private schools), aged 14 to 18 years (16.5±0.2). in addition to demographic details (age and sex) and socio-economic data (economic class, parents educational background), the students reported their body weight (kg) and height (cm). overweight/obesity was determined based on body mass index (bmi= weight[kg]/stature[m2]) according to criteria proposed by the international obesity task force. results: the prevalence of overweight/obesity was 10% and was more common among boys than girls (13.5% vs. 7.4%, prevalence ratio [pr]=1.82; 95%ci=1.42-2.32) and had no association with age in either sex. results of a multivariate analysis found evidence of greater probability of overweight/obesity among boys from higher economic classes (pr=2.75; 95%ci=1.56-4.82). conversely, among the girls the probability of overweight/obesity was lower for girls whose parents had a higher education background level (pr=0.42; 95%ci=0.21-0.87). conclusions: the prevalence of overweight/obesity among adolescent students in jo?o pessoa, pb was similar to what has been observed in other brazilian studies. the richer boys and poorer girls were the subsets with the greatest chance of exhibiting overweight/obesity. within this context, intervention actions should take into consideration the different prevalence rates of overweight/obesity in different demographic and socio-economic strata.
Fatores de risco associados à press?o arterial elevada em adolescentes
Silva, Kelly Samara da;Farias Júnior, José Cazuza de;
Revista Brasileira de Medicina do Esporte , 2007, DOI: 10.1590/S1517-86922007000400005
Abstract: high levels of arterial blood pressure in childhood and adolescence have been often associated with other cardiovascular risk factors apart from arterial hypertension in the adult stage of life. the present study aimed at identifying risk factors associated with high blood pressure in adolescents. the subjects were 674 adolescents from public and private schools in the city of jo?o pessoa, paraíba. these subjects were of both sexes (i.e., 303 boys and 371 girls) and their ages spanned from 14 to 17 years old. by means of a questionnaire, information about the following aspects was gathered: a) socio-demographic status; b) physical activity levels; c) eating habits; d) body mass index; e) consumption of alcohol and smoking. moreover, measurements of arterial pressure (ap) showed that the prevalence of high ap was 7.4 %, being higher in boys (10.2%) when compared with girls (5.1%, p < 0.01). the results of the multivaried analysis indicated that overweight adolescents displayed from five to six times more chance of having high ap than adolescents with light/normal weight (boys: or = 5.5; ci 95% = 1.11-27.53, and girls: or = 4.8; ci 95% = 1.51-15.45). the other variables did not seem to be associated with high ap. in this study, among the various risk factors analyzed, body overweight acted out as the only potential risk factor increasing arterial blood pressure in adolescents, irrespective of their sex and age.
Validade e reprodutibilidade dos instrumentos de medida da atividade física do tipo self-report em adolescentes: uma revis?o sistemática
Farias Júnior, José Cazuza de;Lopes, Adair da Silva;Florindo, Alex Antonio;Hallal, Pedro C.;
Cadernos de Saúde Pública , 2010, DOI: 10.1590/S0102-311X2010000900002
Abstract: this was a systematic review of studies on the reliability and validity of self-report instruments for measuring physical activity, or subjective measurements, in adolescents (10-18 years). searches were conducted in databases (medline, psycinfo, sportsdiscus, scopus, web of science, scielo, lilacs) and in the references of the retrieved articles. sixty-six studies met the inclusion criteria. the majority were from north america, with only 5 from brazil. fifty-two different instruments were identified: 42 questionnaires, 6 diaries or logs, and 4 interviews. "test-retest" reliability varied from 0.20 to 0.98; the majority (28/50) of the coefficients showed values < 0.70. validity coefficients showed wide variation (-0.13 to 0.88), with the majority (64/84) < 0.50. only 3 instruments displayed correlations > 0.70. various instruments were tested in adolescents, especially questionnaires. these instruments generally showed better "test-retest" reliability than validity.
Prática de atividade física e fatores associados em adolescentes no Nordeste do Brasil
Farias Júnior,José Cazuza de; Lopes,Adair da Silva; Mota,Jorge; Hallal,Pedro Curi;
Revista de Saúde Pública , 2012, DOI: 10.1590/S0034-89102012005000031
Abstract: objective: to estimate the proportion of physically active adolescents and identify associated factors. methods: the sample was composed of 2,874 high school students (public and private schools) aged 14 to 19 years in the city of jo?o pessoa, northeastern brazil. physical activity level was measured by means of a questionnaire and considered physically active if > 300 minutes/week. sociodemographic variables were analyzed, as well as nutritional status, sedentary behavior, self-report of health status and participation in physical education classes. the prevalence ratio was used as association measure, estimated by means of poisson regression. results: the prevalence of physical activity was 50.2% (95%ci: 47.3;53.1). male adolescents were more physically active than female adolescents (66.3% vs. 38.5%; p<0.001). the factors directly associated with practice of physical activity were: father's higher level of schooling for the male sex and mother's higher level of schooling for the female sex, positive self-reported health status, and participation in physical education classes. conclusions: the majority of the adolescents was classified as physically active, particularly the male youths. adolescents with parents whose level of schooling was higher, with positive health status perception, and who participated in physical education classes were more likely to be physically active.
Characterization of bone Tissue by microwaves using wavelets and KNN
Barros, Jannayna Domingues;Oliveira Júnior, José Josemar de;Silva, Sandro Gon?alves da;Farias, Robson Fernandes de;
Journal of Microwaves, Optoelectronics and Electromagnetic Applications , 2011, DOI: 10.1590/S2179-10742011000100020
Abstract: in this work, the electrical signals obtained by application of microwaves in chemical and bone tissues are analyzed and classified using techniques of signal processing and pattern recognition. for this, wavelet transform is applied as a method to extract relevant features of signal and knn is used as a classification technique. the results showed that microwave signals can be analyzed using wavelet transform, which can be used to reconstruct the signals with minimal error rate and knn showed satisfactory results.
Prevalência de fatores de risco cardiovascular em adolescentes
Romanzini, Marcelo;Reichert, Felipe Fossati;Lopes, Adair da Silva;Petroski, édio Luiz;Farias Júnior, José Cazuza de;
Cadernos de Saúde Pública , 2008, DOI: 10.1590/S0102-311X2008001100012
Abstract: the aim of this study was to determine the prevalence of cardiovascular risk factors in adolescents and to verify its association with age and gender. 644 high school students from public schools in the city of londrina, paraná state, brazil, participated in the study. a two-step sampling process was used. behavioral risk factors (physical inactivity, inadequate consumption of fruits and vegetables, and smoking) and biological risk factors (overweight and high blood pressure) were investigated. nearly 90% of adolescents showed at least one risk factor. inadequate consumption of fruits (56.7%) and vegetables (43.9%) and physical inactivity (39.2%) were the most prevalent risk factors. prevalence rates for high blood pressure and overweight were 18.6 and 12.7%, respectively. cardiovascular risk factors were more frequent among boys (pr = 1.20; 95%ci = 1.01-1.42). in conclusion, cardiovascular risk factors are a prevalent health issue among students in the city of londrina.
Fatores de risco cardiovascular em adolescentes: prevalência e associa??o com fatores sociodemográficos
Farias Júnior, José Cazuza de;Mendes, Jonathan Karl Feitosa;Barbosa, Daniele Batista Martins;Lopes, Adair da Silva;
Revista Brasileira de Epidemiologia , 2011, DOI: 10.1590/S1415-790X2011000100005
Abstract: objective: the objective of this study was to determine the prevalence of cardiovascular risk factors (individual and co-occurrence); and to analyze their relationship with demographic and socioeconomic variables in adolescents. methods: a two-stage cluster sampling process was used (school and class). the sample was made up of 782 adolescents (14 to 17 years old, 54.9% female), from high schools in the city of jo?o pessoa - pb, brazil. independent variables were: sex, age, and socioeconomic status. outcomes were cardiovascular risk factors (insufficient levels of physical activity, poor dietary habits, high blood pressure, alcoholism, overweight, and smoking). results: insufficient levels of physical activity (59.5%) and poor dietary habits (49.5%) were the most prevalent cardiovascular risk factors. high blood pressure, alcoholism, and overweight were higher among males than females, and insufficient levels of physical activity were more prevalent among females. around 10% of these adolescents did not exhibit risk factors, while 51.4% had two or more cardiovascular risk factors. the odds of co-occurrence of biological risk factors were 1.89 (1.35 - 2.65) times greater for male adolescents and 1.69 (95% ci= 1.16 - 2.47) greater for those in the lowest socioeconomic strata. conclusions: there was a high prevalence of cardiovascular risk factors, with a predominance of co-occurrence of exposure to more than one risk factor. male and underprivileged adolescents were more likely to suffer co-occurrence of exposure to biological risk factors.
ENSAIO PARA O CONTROLE QUíMICO DA BROCA PEQUENA Neoleucinodes elegantalis (Guennée 1854) (Pyralidae Lepidoptera) DO TOMATE CHEMICAL ESSAY ON TOMATO FRUIT BORER Neoleucinodes elegantalis (Guennée, 1854)
Paulo Sandre Júnior,Ant?nio Lopes da Silva,Valmir Eduardo D. Alcantara,Tarciso Albuquerque de Farias
Pesquisa Agropecuária Tropical , 2007, DOI: 10.5216/pat.v22i1.2609
Abstract: Para controle da broca pequena do fruto do tomate Neoleucinodes elegantalis (Guennée, 1854), foi realizado no campo experimental da Escola de Agronomia da Universidade Federal de Goiás, um experimento em tomateiro, cultivar Kadá, visando a avaliar em campo a eficiência dos inseticidas: cypermethrin (Polydial 20 CE) – 130 g. i.a./ha; diclorvos (Nuvan 1000 CE) - 312,5 g. i.a./ha; diazinon (Diazinon 40 PM) 250 g. i.a,/ha; diazinon (Diazinon 600 CE) 300 g. i.a/ha, comparados com cartap (Cartap BR 500) - 312,5 g. i.a. e uma testemunha. O delineamento experimental foi de blocos ao acaso com quatro repeti es. Cada parcela foi constituída de duas linhas com dez plantas. Foram realizadas quatro aplica es, sendo uma a cada semana, a partir do surgimento dos primeiros frutos. A avalia o dos resultados foi realizada por ocasi o da primeira produ o, quando todos os frutos das parcelas foram colhidos para se detectar quantos estavam brocados. Os resultados obtidos no presente experimento mostraram que houve diferen a estatística significativa entre os produtos utilizados e que todos diferiram significativamente da testemunha. Os produtos mostraram as seguintes eficiências no controle da praga: Cartap BR 500, 90,9%; Polydial 20 CE, 88,2%; Nuvan 100 CE, 80,0%; Diazinon 600 CE, 77,3%, e Diazinon 40 PM, 70,9%. A trial was carried out in Goiania-Go, Brazil, to verify the effect of several insecticides on tomato fruit borer Neoleucinodes elegantalis (Guenné, 1854). The treatments and active ingredient per hectare were: 1-cypermethrin, 130 g; 2-diclorvos, 312.5 g; 3- diazinon 250 g; 4- diazinon 30 g and 5- cartap 312.5 g. The experimental design used was randomized blocks, with four replications being each plot constituted of two rows with 10 plants. The insecticides were applied four times at seven days intervals. The results showed that all the treatments were efficient to control the tomato fruit borer. The best results were obtained with cartap, 90.9% of the control, followed by cypermethrin with 88.2% of control.
Note on the occurrence of the crebeater seal, Lobodon carcinophagus (Hombron & Jacquinot, 1842) (Mammalia: Pinnipedia), in Rio de Janeiro State, Brazil
Liliane Lodi,Luiz Cláudio Mayerhofer,Samuel Gomes de Farias Júnior,Fábio Soares da Cruz
Biotemas , 2005,
Abstract: On May 12, 2003, a crabeater seal (Lobodon carcinophagus) was seen 3km upstream of the mouth of the Ca o River (22o54’S; 43o50’W), southern Rio de Janeiro State. It was a female of 212cm in length, weighing approximately 180kg. A week prior (May 5), the same specimen (identified by a parallel scar pattern) had been observed at Cost o Beach (24o19’S; 47o00’W), Peruíbe, S o Paulo State. Two days later, the animal reappeared at Barra do Sahy Beach (23o47’S; 45o33’W), S o Sebasti o, S o Paulo. Subsequently, the seal’s further northerly displacement to Ca o River made a total distance covered of 229km. The occurrence of two cold fronts and the prevalence of southern currents in the first fortnight of May may have favored the displacement of this Ocorrência de Lobodon carcinophagus no Rio de Janeiro animal to areas of low latitude in southeastern Brazil. On June 16, 2003, a male of approximately 200cm in length was seen in Tombo Beach (24o00’S ; 46o18’W), Guarujá (S o Paulo). It was the second appearance of L. carcinophagus in S o Paulo in 41 days. This note confirms the occasional occurrence of this species along the Brazilian coast, and provides insights into the dispersion of the species in the southwestern Atlantic.
RENDIMENTO FORRAGEIRO E COMPOSI O BROMATOLóGICA DE MILHETO SOB ADUBA O NITROGENADA
Alzira Gabriela Da Silva,Oscar Lopes De Farias Júnior,Aldi Fernandes De Souza Fran?,Eliane Sayuri Miyagi
Ciência Animal Brasileira , 2012,
Abstract: An experiment with pearl millet (Pennisetum glaucum) cv ADR-300 under nitrogen doses (0, 50, 100 and 150 kg.ha-1) at two residual height cuts (0.20 and 0.25 m) was carried out to evaluate dry matter production and chemical composition. The experiment was carried out at Universidade Federal de Goiás. The experimental design used was randomized blocks in a 4 x 3 factorial arrangement, with three replications. Dry matter production (DMP), dry matter content (DM), crude protein (CP), acid detergent fiber (ADF) and neutral detergent fiber (NDF) were evaluated. The DMP differed (P<0.05) among the N doses and cuts. DM content decreased as N doses increased. The addition of N doses promoted a rise of CP content at all the cuts. CP content decreased with the cuts succession. The NDF tenors differed (P<0.05) with the succession of the cuts at both heights. The ADF values (P<0.05) differed in function of the addition of N doses and the succession of the cuts. Pearl millet showed production and chemical composition variation in the performed treatments, thus, it is recommended for animal feeding that this forage plant is used at the residual height of 0.25 m and with application of a N dose of 150 kg.ha-1.
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