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Emergence and initial development of Mimosa caesalpiniifolia Benth. seedlings for different substrates = Emergência e desenvolvimento inicial de plantulas de Mimosa caesalpiniifolia Benth. em fun o de diferentes substratos
Narjara Walessa Nogueira,Maria Clarete Cardoso Ribeiro,Rmulo Magno Oliveira de Freitas,Marcos Yoshio Matuoka
Agro@mbiente On-line , 2012,
Abstract: The present study assessed the effects of different substrates on the emergence and initial development of Mimosa caesalpiniifolia Benth seedlings. For this purpose an experiment was done in a greenhouse of the Department of Plant Sciences of Universidade Federal Rural do Semi-árido (UFERSA), Mossoró-RN. The statistical design was completely randomized (CRD), where treatments were composed of nine substrates (T1: vermiculite, T2: coconut fiber, T3: trade hortimix , T4: vermiculite, coconut fiber and compost (1: 1:1), T5: coconut fiber and compost (1:1), T6: coconut fiber and compost (1:2),T7: vermiculite and compost (1:1), T8, vermiculite and compost organic (1:2) and T9: organic compost). All treatments were represented by four replications containing 25 seeds. The following variables were evaluated: emergency percentage, emergence rate index, length of shoot and root, stem diameter, dry leaves, stem, root and total leaf area, specific leaf area, leaf area ratio, and leaf weight ratio. Data were submitted to the Tukey test at 5% probability. The coconut fiber substrates, commercial hortimix and vermiculite proved superior promoted good emergence and early development of seedlings. The mixture of vermiculite, coconut fiber and compost (1:1:1), coconut fiber and compost (1:1), coconut fiber and compost (1:2) and organic compost and vermiculite (1: 1) was not shown to be adequate for the cultivation of seedlings. There was no emergency in the pure organic compound in the mixture of compost and vermiculite (1:2).Key words - Vermiculite. Organic compost. Coconut fiber. Sabiá. Substrates. = Objetivou-se com o presente trabalho avaliar o efeito de diferentes substratos na emergência e desenvolvimento inicial de plantulas de sabiá (Mimosa caesalpiniifolia Benth.). Para isso, foi instalado um experimento em casa de vegeta o do Departamento de Ciências Vegetais da Universidade Federal Rural do Semi-árido (UFERSA), Mossoró-RN. O delineamento estatístico utilizado foi inteiramente casualizado (DIC) e os tratamentos foram compostos por nove substratos (T1: vermiculita; T2: fibra de coco; T3: comercial hortimix ; T4: vermiculita, fibra de coco e composto organico (1:1:1); T5: fibra de coco e composto organico (1:1); T6: fibra de coco e composto organico (1:2); T7: vermiculita e composto organico (1:1); T8:vermiculita e composto organico (1:2) e T9: composto organico), com quatro repeti es de 25 sementes. As variáveis avaliadas foram: porcentagem de emergência; índice de velocidade de emergência; comprimento de parte aérea e de raiz; diametro do colo; matéria seca
Indolbutyric acid in the vegetative propagation of cajarana plants (Spondias sp.) ácido indolbutírico na propaga o vegetativa de cajaraneira (Spondias sp.)
Mauro da Silva Tosta,Clériston Venancio Franklin de Oliveira,Rmulo Magno Oliveira de Freitas,Vania Christina Nascimento Porto
Semina : Ciências Agrárias , 2012,
Abstract: The objective of this study was to evaluate the vegetative propagation of cuttings semi-herbaceous of “cajaraneira” (Spondias sp.) treated with indolbutyric acid at different concentrations. Cuttings of 20 cm, submitted to the application of six concentrations of indolbutyric acid – IBA (0, 500, 1000, 3000, 6000 and 9000 ppm). The experimental design was randomized blocks, being used with four replications and 12 cuttings per experimental unit, being evaluated 60 days after planting. We evaluated the number of buds, length of bud, leaf number, the number of leaflets, the length of the root system, the percentage of rooting, root number per cutting, leaf dry weight, dry weight sprouting, the dry mass of root system and the relationship between the dry mass of shoot and root dry mass. The increase in IBA concentration promoted a quadratic polynomial for the variables analyzed; except for the relationship between the dry mass of shoots and dry weight of roots, which was observed a decreasing effect with increased doses. For the production of vigorous seedlings cajaraneira by cuttings can be used, on average, a concentration of 5232 ppm IBA, mixed in pharmaceutical talc powder. O objetivo do presente trabalho foi avaliar a propaga o vegetativa de estacas semi-herbáceas de cajarana (Spondias sp.) tratadas com ácido indolbutírico em diferentes concentra es. Foram utilizadas estacas de 20 cm, submetidas à aplica o de seis concentra es de ácido indolbutírico – AIB (0, 500, 1000, 3000, 6000 e 9000 ppm). O delineamento experimental foi em blocos casualizados, com quatro repeti es e 12 estacas por unidade experimental, sendo avaliado aos 60 dias após o plantio. Foi avaliado o número de brotos, o comprimento do broto, o número de folhas, o número de folíolos, o comprimento do sistema radicular, a porcentagem de estacas enraizadas, o número de raízes por estaca, a massa seca da folha, a massa seca da brota o, a massa seca do sistema radicular e a rela o entre a massa seca das brota es e a massa seca do sistema radicular. O aumento da concentra o de AIB promoveu resposta polinomial quadrática para as variáveis analisadas; exceto para a rela o entre a massa seca das brota es e a massa seca do sistema radicular, o qual foi observado um efeito decrescente ao aumento das dosagens. Para a produ o de mudas de cajaraneira vigorosas por estaquia pode ser utilizada, em media, uma concentra o de 5232 ppm de ácido indolbutírico, misturadas em talco farmacêutico em pó.
Efeito da salinidade na emergência e crescimento inicial de plantulas de flamboyant Effect of salinity on the emergence and initial growth of flamboyant seedlings (Delonix regia (Bojer exHook.) Raf.)
Narjara Walessa Nogueira,Jailma Suerda Silva de Lima,Rmulo Magno Oliveira de Freitas,Maria Clarete Cardoso Ribeiro
Revista Brasileira de Sementes , 2012, DOI: 10.1590/s0101-31222012000300014
Abstract: Objetivou-se avaliar o efeito de diferentes concentra es salinas na água de irriga o na emergência e desenvolvimento inicial de plantulas de flamboyant (Delonix regia (Bojer ex Hook.) Raf.). O experimento foi desenvolvido em casa de vegeta o do Departamento de Ciências Vegetais da Universidade Federal Rural do Semiárido - UFERSA, Mossoró-RN. O delineamento estatístico utilizado foi o inteiramente casualizado, com cinco tratamentos e quatro repeti es, com 25 sementes cada. Os tratamentos consistiram das concentra es salinas (0,5; 1,5; 3,0; 4,5 e 6,0 dS m-1), que foram obtidas através da adi o de NaCl em água de forma que as solu es fossem calibradas para as condutividades elétricas pré-estabelecidas. As variáveis avaliadas foram: porcentagem de emergência de plantulas, índice de velocidade de emergência, área foliar, altura de plantula, número de folíolos, comprimento de raiz e massa seca da parte aérea. A salinidade interfere negativamente em todas as variáveis avaliadas de forma proporcional ao seu aumento na água de irriga o das plantulas de flamboyant, sendo o maior desenvolvimento das plantulas obtido na dose 0,5 dS m-1. The objective of this study was to evaluate the effect of different salt concentrations in irrigation water on the emergence and initial development of flamboyant (Delonix regia (Bojer ex Hook.) Raf.) seedlings. The experiment was conducted in the greenhouse of the Department of Plant Sciences, Universidade Federal Rural do Semiárido - UFERSA, Mossoró-RN. The statistical design was completely randomized with five treatments and four replicates, each with 25 seeds. The treatments consisted of salt concentrations (0.5, 1.5, 3.0, 4.5 and 6.0 dS m-1), obtained by adding NaCl to water so that the solutions were calibrated to the pre-established electrical conductivity values. The variables measured were: percentage of seedling emergence, rate of emergence, leaf area, seedling height, number of leaves, root length and shoot dry weight. Salinity negatively affects all variables directly proportional to its increase in the irrigation water, with the greatest seedling development at a dose of 0.5 dS m-1.
Correlation between different body fat indicators and habitual physical activity in boys
Rmulo Araújo Fernandes,Arli Ramos de Oliveira,Ismael Forte Freitas Júnior
Revista Brasileira de Cineantropometria e Desempenho Humano , 2006,
Abstract: The purpose of this study was to analyze the relationship between different body fat indicators, habitual physical activity and exposure to sedentary behavior in pre-adolescent males. The sample involved 60 subjects from 10 to 14 years old. The used body fat indicators were: the Body Mass Index, waist circumference, the sum of eight skinfolds, and estimation of percent of body fat using bioelectric impedance. The indicators of physical activity and sedentary behavior were assessed through a questionnaire. Descriptive statistical procedures were: mean, medium, standard deviations, minimum and maximum values, as well as the Spearman correlation. The SPSS software was used and P values lower than 5% were considered statistically signifi cant. None of the body fat indicators presented signifi cant correlation (p> 0.05) with indicators of habitual physical activity, although, all of them were moderately associated with time spent in sedentary activities (Body Mass Index: r= 0.42, waist circumference: r= 0.43, sum of skinfolds: r= 0.43 and percent of body fat: r= 0.43). Therefore, it is concluded that exposure to sedentary behavior correlates with body composition in pre-adolescent males aged 10 to 14 years. RESUMOO objetivo deste estudo foi analisar a rela o entre diferentes indicadores de adiposidade corporal, atividade física habitual e exposi o a comportamentos sedentários em jovens do sexo masculino. A amostra foi composta por 60 indivíduos com idade compreendida entre 10 e 14 anos. Foram utilizados como indicadores de adiposidade corporal: o índice de Massa Corporal, circunferência de cintura, somatória de oito dobras cutaneas e estimativas do percentual de gordura corporal, calculada por meio de impedancia bioelétrica. Os indicadores de prática de atividade física e comportamentos sedentários foram avaliados através da aplica o de questionário. Os procedimentos estatísticos adotados foram: valores de média, mediana, desvio padr o, valores mínimos, máximos e correla o de Spearman. O software utilizado foi o SPSS e valores de P inferiores a 5% foram considerados estatisticamente signifi cantes. Nenhum dos indicadores de adiposidade corporal apresentou correla o signifi cante (p> 0,05) com os indicadores de prática de atividade física, no entanto, todos foram moderadamente associados (índice de Massa Corporal: r= 0,42; circunferência de cintura: r= 0,43; somatória de dobras cutaneas: r= 0,43 e gordura percentual corporal: r= 0,43) com o tempo despendido em atividades sedentárias. Desta forma, conclui-se que a exposi o a comportamentos sedentários ap
Produ??o de mel por abelhas africanizadas em plantio de mamoneira
Milfont, Marcelo de Oliveira;Freitas, Breno Magalh?es;Rizzardo, Rmulo Augusto Guedes;Guimar?es, Michelle de Oliveira;
Ciência Rural , 2009, DOI: 10.1590/S0103-84782009005000058
Abstract: this research aimed to investigate whether apis mellifera l. bees produce honey in commercial plantations of castor bean (ricinus communis l.) or not. this research was carried out in the núcleo de produ??o comunitária santa clara, canto do buriti, piauí, brazil. two apiaries of six colonies each were installed in two castor bean plots. the first plot was kept free of weeds (clean plot) while the other not (dirty area), presenting herbaceous vegetation between the castor bean rows. empty supers were given to the colonies as they were required and weighted every seven days afterwards until the end of the experiment 49 days later. there was honey production in all colonies, but honey production did not differ (p>0.05) between apiaries at any weighing. the clean plot produced an average of 18.8±4.0kg honey/colony while the dirty area reached 23.5±3.0. it was concluded that apis mellifera l. produce and store honey in castor bean cropping areas.
Etnobotanica e etnozoologia em unidades de conserva??o: Uso da biodiversidade na apa de genipabu, Rio Grande do Norte, Brasil
Torres,Denise de Freitas; de Oliveira,Eduardo Silva; Alves,Rmulo Romeu da Nóbrega; Vasconcellos,Alexandre;
Interciencia , 2009,
Abstract: the sustainable use of natural resources by local populations must be based on an understanding of the relationships between humans and their environment. in this context, the present study analyzed aspects of the interactions between human populations and the biodiversity found in the genipabu environmental protection area (apa-genipabu), coast of the state of rio grande do norte, brazil. a total of 60 open interviews were carried out in three communities established within the apa-genipabu, with questions designed to inquire aspects of their general perception of the area and their knowledge and use of the local biodiversity. approximately 82% of the residents do not fully understand the concepts behind creating a conservation area. the interviewees identified 97 plants species (belonging to 48 families) and 172 animals (131 vertebrates and 41 invertebrates), including three animal species considered endangered in brazil. useful species were most often cited. among the positive perceptions of the apa-genipabu, interviewees cited the importance of preserving the sand dunes, animals, plants and lakes, and maintaining the natural landscape to attract tourism. in order to improve conservation strategies in the protection area it will be important to build on the positive aspects of the reserve that were cited by the local population and provide these people with more information about its conservation goals.
Utiliza??o da impedancia bioelétrica na indica??o do excesso de gordura visceral e subcutanea
Fernandes, Rmulo A.;Rosa, Clara S. C.;Buonani, Camila;Oliveira, Arli R. de;Freitas Júnior, Ismael F.;
Jornal de Pediatria , 2007, DOI: 10.2223/JPED.1722
Abstract: objective: to analyze bioelectrical impedance performance in detecting the presence of excess visceral fat and overweight/obesity in young brazilians and how its values are related with them. methods: study sample consisted of 811 adolescents of both genders (11 to 17 years of age). nutritional status was determined based on triceps skinfold thickness (tsf), relative body fat (bioelectrical impedance), and excess visceral fat as determined by waist circumference. statistical analysis was performed using means, standard deviations, linear correlation, student's t test, and roc curve. results: bioelectrical impedance achieved good performance in identifying excess visceral fat associated with overweight/obesity in both genders, and was found to be more specific (male 92.4% and female 93.8%) than sensitive (male 86.1% and female 71.8%). conclusion: our findings support the use of bioelectrical impedance to identify the presence of excess visceral and subcutaneous fat in adolescents.
Fatores associados ao excesso de peso entre adolescentes de diferentes redes de ensino do município de Presidente Prudente, S?o Paulo
Fernandes, Rmulo A.;Codogno, Jamile S.;Cardoso, Jefferson R.;Ronque, Enio R. V.;Freitas Júnior, Ismael F.;Oliveira, Arli R. de;
Revista Brasileira de Saúde Materno Infantil , 2009, DOI: 10.1590/S1519-38292009000400009
Abstract: objective: to analyze associations between overweight and family risk factors in different school environments. methods: a descriptive/analytical cross-sectional study of 1779 adolescents (aged between 11 and 17 years) of both sexes in the public (n=1309) and private (n=470) education systems. family factors evaluated included: sex, economic circumstances, number of siblings, number of televisions and level of schooling of parents. the prevalence ratio (pr) in a univariate and multivariate model suggested the scale of the associations under study. results: in private schools, overweight was associated with the level of schooling of the father (rp= 0.68 [0.5-0.9]) and with boys (rp= 1.38 [1.0-1.8]). in public schools it was associated with the level of schooling of the mother (rp= 1.42 [1.1-1.8]), having fewer siblings (rp= 1.23 [0.9-1.5]) and with boys (rp= 1.32 [1.6-1.6]). conclusions: overweight is associated with different family factors depending on the kind of school.
Prevalência de fatores de risco para doen?as cardiovasculares entre escolares em Londrina - PR: diferen?as entre classes econ?micas
Christofaro, Diego Giulliano Destro;Andrade, Selma Maffei de;Fernandes, Rmulo Araújo;Ohara, David;Dias, Douglas Fernando;Freitas Júnior, Ismael Forte;Oliveira, Darli Ramos de;
Revista Brasileira de Epidemiologia , 2011, DOI: 10.1590/S1415-790X2011000100003
Abstract: objective: to analyze and compare the prevalence of cardiovascular risk factors among school students of different economic conditions. methods: a total of 1,021 adolescents were analyzed. subjects were weighed and had their height, waist circumference and blood pressure measured. both physical activity and economic condition (low and high) were reported. results were analyzed through frequencies of variables and the chi-square test. results: a lower prevalence of physical inactivity (p < 0.001) and higher prevalences of abdominal obesity (p = 0.038) and overweight (p = 0.010) were observed among adolescents of high economic class. no differences regarding high blood pressure were observed among adolescents of low and high economic classes. when cardiovascular risk factors were aggregated, the prevalence of one and two factors was also higher among high economic class adolescents. conclusion: with the exception of physical inactivity and high blood pressure, the prevalence of cardiovascular risk factors was higher among high economic status adolescents.
Fatores familiares associados à obesidade abdominal entre adolescentes
Fernandes, Rmulo Araújo;Casonatto, Juliano;Christofaro, Diego Giuliano Destro;Cucato, Gabriel Grizzo;Oliveira, Arli Ramos de;Freitas Júnior, Ismael Forte;
Revista Brasileira de Saúde Materno Infantil , 2009, DOI: 10.1590/S1519-38292009000400010
Abstract: objectives: to investigate the association between family risk factors and abdominal obesity in adolescents. methods: the sample comprised 691 young people of both sexes (aged between 11 and 17 years), residing in the municipality of presidente prudente, in the state of s?o paulo, in 2007. identification of abdominal obesity was based on the waist circumference and family risk factors (level of schooling and overweight in the parents, socio-economic conditions, number of siblings and number of televisions in the household). these variables were collected using questionnaires. statistical analysis involved application of the chi-squared test and logistic regression (odds ratio [or] and confidence interval [ci95%]). results: the prevalence of abdominal obesity was 14.8% in the study sample and there was no difference between males and females (male: 17.7% and female: 12.9%; p=0.111). abdominal obesity was associated with the private school sector (3.75 [1.27-11.00]), an overweight/obese mother (3.82 [1.14-12.73]) and both parents being overweight/obese (6.21 [2.07-18.63]). conclusions: the findings of this study suggest that studying in a private school and overweight parents are the main risk factors associated with abdominal obesity in adolescents.
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