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Search Results: 1 - 10 of 197690 matches for " Leandro Henrique de Souza;Araújo "
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Facial fractures: a 1-year retrospective study in a hospital in Belo Horizonte
Chrcanovic, Bruno Ramos;Freire-Maia, Belini;Souza, Leandro Napier de;Araújo, Vasco de Oliveira;Abreu, Mauro Henrique Nogueira Guimar?es de;
Brazilian Oral Research , 2004, DOI: 10.1590/S1806-83242004000400009
Abstract: a retrospective study was performed to assess facial fractures in patients treated at a public hospital in belo horizonte, in 2000. the data collected included age, gender, etiology, distribution of maxillofacial trauma considering day of the week and month, anatomic site of the fracture, and treatment. the analyses involved descriptive statistics and chi-squared test, bonferroni test and analysis of variance. a total of 1,326 facial fractures were found in 911 patients. most fractures occurred in adults with age ranging from 21 to 30 years. men were more affected than women, with a male-female ratio of 4.69:1. accidents causing facial fractures occurred predominantly on weekends. bicycle and motorcycle accidents were the major cause of trauma, followed by interpersonal violence, automobile accidents, and falls. when the relation between the gender and the etiology of facial fractures was analyzed, a significant relation was noted between these variables (p < 0.001). there was also a relation between the patients' age and the site of the fractures (p = 0.0014). the mandible was found to be the most commonly fractured bone in the facial skeleton, followed by the zygomatic complex and the nose. a non-surgical approach was chosen in most cases. there were significant differences between the kind of treatment applied and the site of the fracture (p < 0.001).
Milho pipoca consorciado com feij?o em diferentes arranjos de plantas
Viegas Neto, Antonio Luiz;Heinz, Rafael;Gon?alves, Manoel Carlos;Correia, Allan Michel Pereira;Mota, Leandro Henrique de Souza;Araújo, Willian Dias;
Pesquisa Agropecuária Tropical , 2012, DOI: 10.1590/S1983-40632012000100004
Abstract: the intercropping of popcorn and bean is an alternative for small farmers, by providing higher profits and a better use of the crop area, besides reducing loss risks. this study aimed to evaluate different popcorn and bean intercropping systems. the experiment was carried out in an experimental field owned by the universidade federal da grande dourados, in dourados, mato grosso do sul state, brazil. the experimental design was randomized blocks, with four replications, with treatments arranged in a split-plot scheme, with plots consisting of two popcorn cultivars (zélia and brs angela) and subplots consisting of three intercropping systems with popcorn and the brs mg pioneiro bean (popcorn + bean in the popcorn row, popcorn + bean between the popcorn rows, and corn + bean in the popcorn row + bean between the popcorn rows), and popcorn under monocropping system. the intercropping systems evaluated did not affect the popcorn yield, and bean sown in the popcorn row + between the popcorn rows resulted in a higher yield. in general, the intercropping between the two species decreased bean yield, however, due to the equivalent area index values, it was 50% to 91% more efficient than the monocropping systems.
Cidad?os peregrinos: os "usuários" do SUS e os significados de sua demanda a prontos-socorros e hospitais no contexto de um processo de reorienta??o do modelo assistencial
Oliveira,Lúcio Henrique de; Mattos,Ruben Araújo de; Souza,Auta Iselina Stephan de;
Ciência & Saúde Coletiva , 2009, DOI: 10.1590/S1413-81232009000500035
Abstract: despite the emphasis of the territorial logic on the first level of the public health services network, the users of this health system come demonstrating a historical preference by emergency services. in order to try to understand this behavior, a qualitative research was developed, by means of interviews with "foci groups" of public health services users, where it was searched to know their experiences, perceptions and opinions, looking for understanding how do they choose during their search for assistance. the users reject the "norm" that defines the basic health care services of their territorial reference as their "entrance door", in favor of other parameters that were more significant for them. the arrangements of the health care organization have the meaning of barriers to the access. moreover, the user's image in relation to the ubs is of great limitation. on the other hand, the emergency services present for them as spaces characterized by bigger capacity. the users demonstrate a significant indifference about the public health services. besides, the uncertainty's images prevail in the sus. but, according to its access necessity, the users learn social rules in the services and construct several strategies with the aim to open the doors of the health system.
Avalia??o da eficiência de um gel hidroretentor como retardante de fogo
Souza, Henrique Neyffer de;Araújo, Tiago Guilherme de;Ribeiro, Guido Assun??o;
Revista árvore , 2012, DOI: 10.1590/S0100-67622012000300009
Abstract: several measures of protection against fires have been adopted to minimize the negative effects of fire. products have been tested and applied in the conservation of moisture in fuel avoiding or delaying spread of fire. the objective of this study was to evaluate the capacity of a water-retaining polymer to keep the fuel dead moisture at different dosages of application, aiming at using it as fire retardant. forty plots of 1m x 1m with 1.2 kg of grass (melinis minutiflora p. beauv.) each, evenly distributed were made. it was a mixture with concentration of 0.1 g / l of the product at doses of 0, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5 and 4.0 l / m2. the study was conducted in a split-plot design with five replicates each and 16 subplots. the capacity of water-retention was measured by the difference from the wet weight and dry weight of the material after being dried in an oven. the mean values were statistically different in tukey test at 5% probability but they did not show any correlation with the sequence of values of the treatments. treatment 6 was the one with the highest mean moisture (35.50%) while the control showed the lowest value (27.80%). the use of water-retaining gel did present significant increase of moisture to the fuel over the days, at the tested doses and environmental conditions the study, determining that this product is not recommended for preventing fire.
Olhares distintos sobre a no o de estabilidade e mudan a no desempenho da coordena o motora grossa ángulos diferentes sobre el concepto de estabilidad y cambio en el rendimiento de la coordinación motora gruesa Distinct views on the notion of stability and change in the performance of gross motor coordination
Luciano Basso,Cleverton José Farias de Souza,Ulysses Okada de Araújo,Flávio Henrique Bastos
Revista Brasileira de Educa??o Física e Esporte , 2012, DOI: 10.1590/s1807-55092012000300015
Abstract: Estudos sobre coordena o motora grossa (CMG) de crian as focam na descri o dos valores normativos em raz o da idade e sexo. Poucos analisam a dinamica da mudan a do desempenho de cada crian a em rela o ao seu grupo ao longo do tempo. O objetivo do presente estudo foi estimar a estabilidade das diferen as interindividuais na mudan a intraindividual da CMG ao longo de 18 meses. Participaram do estudo 120 escolares de sete anos de idade da cidade de Muzambinho - MG. Foram realizadas quatro coletas com intervalos de seis meses. A CMG foi avaliada pelas provas do KTK. Os valores médios apresentaram incrementos em todas as provas, diferindo entre gênero apenas para o equilíbrio à retaguarda. Os resultados da correla o entre o desempenho inicial e a mudan a ao longo do tempo indicaram uma forte heterogeneidade. Os resultados da estabilidade se mostraram fracos, os quais foram discutidos em rela o a diferentes trajetórias do desenvolvimento da CMG. Las investigaciones sobre la coordinación motora gruesa (GMC) de ni os se centran en la descripción de los valores normativos basados en la edad y en el sexo, y pocos estudios analizan la dinámica de cambio en el desempe o de cada ni o en relación a su grupo al largo del tiempo. El objetivo de este estudio fue estimar la estabilidad de las diferencias interindividuales en el cambio interindividual de la CMG durante dieciocho meses. Participaron de la investigación 120 estudiantes de siete a os de edad de la ciudad de Muzambinho - MG. Cuatro muestras fueron tomadas a intervalos de seis meses. La CMG se evaluó mediante las pruebas del KTK. Los valores medios mostraron aumentos en todas las pruebas, defiriendo entre géneros sólo para el equilibrio a la retaguardia. Los resultados de la correlación entre el rendimiento inicial y el cambio a lo largo del tiempo indicaron una fuerte heterogeneidad. Los resultados de la estabilidad se mostraron débiles. Estos resultados se discuten en términos de diferentes trayectorias de desarrollo de la CMG. Studies about gross motor coordination in children (GMC) focus on the description of normative values derived from age and sex, and few analyzed the dynamics of change of each child within its group. The goal of the present study is estimate the stability of intra-individual change over inter-individual differences over eighteen months. One hundred and twenty students with seven years old in the city of Muzambinho - MG participated in the study. Data was collected four times, with a six-month interval between each assessment. GMC was evaluated through KTK test battery. Mean valu
Matura o e dormência em diásporos de carrapicho-de-carneiro (Acanthospermum hispidum DC. - Asteraceae) Maturation and dormancy in Acanthospermum hispidum DC. - Asteraceae diaspores
Edson Ferreira Duarte,Jaylson Araújo dos Santos,Jailson de Souza Peixoto,Carlos Henrique Barbosa Santos
Revista Brasileira de Sementes , 2012, DOI: 10.1590/s0101-31222012000300011
Abstract: Objetivou-se acompanhar a matura o dos diásporos de carrapicho-de-carneiro (Acanthospermum hispidum DC.) e avaliar métodos de supera o da dormência. Diásporos com 7, 14, 21, 28 e 35 dias após antese (DAA) obtidos em plantas ocorrentes na área experimental da Universidade Federal do Rec ncavo da Bahia, Cruz das Almas, BA, Brasil. Foram avaliadas as dimens es dos diásporos de cada estádio, seu teor de água e de massa seca. Fez-se um teste de emergência de plantulas, a 25 oC, sob 16 horas de luz em areia lavada. Avaliou-se semanalmente a emiss o da parte aérea, determinando o índice de velocidade de emergência (IVE) e a porcentagem de diásporos mortos e dormentes. Em outro experimento, utilizaram-se tratamentos para supera o da dormência: escarifica o com lixa; lavagem em água corrente por 24 horas; estratifica o a 10 oC por sete dias; GA3 a 4000 mg L-1; sementes intactas. Ocorreram incrementos na largura e na massa da matéria seca até 21 DAA, o comprimento aumentou até 35 DAA. A máxima emergência de plantulas (45%) e o máximo IVE (3,4) ocorreram aos 21 DAA, quando ocorreu a maturidade fisiológica; nos estádios seguintes verificou-se aumento da dormência. A. hispidum dispersa sementes fisiologicamente dormentes e a dormência é superada com GA3. The objective of the study was to evaluate the maturation of A. hispidum diaspores and methods for overcoming dormancy. Diaspores were obtained 7, 14, 21, 28 and 35 days after anthesis (DAA) from plants in the experimental area of the Universidade Federal do Rec ncavo Bahiano, Cruz das Almas, Bahia, Brazil. Diaspore dimensions, water content and dry weight were evaluated. Emergence was tested at 25°C with 16 hours of light in washed sand. Emergence was monitored weekly, counting the aerial part of the seedlings above the substrate, and determining the germination velocity emergence (GVE) and percentage of dead and dormant diaspores. In another experiment, the treatments for overcoming dormancy were: scarification with sandpaper; washing in running water for 24 h; stratification at 10 oC for 7 days; GA3 4000 mg L-1; and intact seeds. The dry weight increased until 21 days and the length increased until 35 DAA. The maximum emergence (45%) and GVE (3.4) of the diaspores was at 21 DAA when there was physiological maturity. Dormancy increased in the subsequent stages. A. hispidum disperses physiologically dormant seeds and dormancy can be overcome with GA3.
Expression of the Genes OsNRT1.1, OsNRT2.1, OsNRT2.2, and Kinetics of Nitrate Uptake in Genetically Contrasting Rice Varieties  [PDF]
Osmário J. L. Araújo, Milena S. Pinto, Marcus V. L. Sperandio, Leandro A. Santos, Elvia M. L. M. Stark, Manlio S. Fernandes, André Marques dos Santos, Sonia Regina de Souza
American Journal of Plant Sciences (AJPS) , 2015, DOI: 10.4236/ajps.2015.62035
Abstract: Four genetically contrasting rice varieties (IAC-47, Bico Ganga, Arroz de Revenda and Manteiga) according to Random Amplified Polymorphic DNA (RAPD) analysis were assessed regarding expression of the genes OsNRT1.1, OsNRT2.1 and OsNRT2.2 and the nitrate uptake kinetics parameters (Km and Vmax). Up to 250-fold increases in the induction of gene expression after nitrate resupply were observed for the high-affinity transporter (OsNRT2.1 and OsNRT2.2). However, no significant variations in Vmax among the varieties were obtained. The lower value of Km of the IAC-47 cultivar in relation to the Arroz de Revenda variety suggests a greater role of high-affinity transporter genes. These results indicate that closer attention should be paid to the expression levels of these genes in selecting varieties aiming to enhance nitrogen uptake efficiency.
Behavior of beef cattle in silvipastoral systems with eucalyptus
Souza, Wander de;Barbosa, Orlando Rus;Marques, Jair de Araújo;Gasparino, Eliane;Cecato, Ulysses;Barbero, Leandro Martins;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010000300029
Abstract: it was aimed to verify the effect of the presence of trees and their heights in silvipastoral system on the intake behavior of nellore heifers in the summer. ten heifers for the following systems were used: system without shade, silvipastoral system with 8-meter and 18-meter trees. the data were collected in three days during 12 hours, subdivided in morning (7:15 a.m. to 1. p.m.) and afternoon (1:15 p.m. to 7 p.m.). it was evaluated the times and frequency of grazing, rumination, idle and the percentage of time that the animals remained in the shade; black globe-humidity index, whose average and minimum values (86 and 82) were equal for 8-meter tree system and 18-meter tree system; however they were lower when compared to the without shade system (89 and 86). there was an interaction between the systems and the periods for all the analyzed variables, except for the rumination frequency. for system without shade, the grazing time did not differ between morning (202 min) and afternoon (187 min); however the grazing frequency was lower for the afternoon (3.17). for 8-meter trees systems and 18 meter trees system, the grazing time in the afternoon, respectively, with 195.50 and 219.00 min was higher than in the morning, respectively, with 128.00 and 158.50 minutes. the rumination time was higher in the morning for all systems. the grazing frequency for 8-meter trees was 3.58, for the without shade system it was 3.05 and for 18-meter tree system it was 2.22. a higher idle time and the idle frequency was found in system without shade (97.50 min and 3.80 respectively) in the afternoon. for 8-meter tree system (98.50 min and 4.47 respectively) and 18-meter tree system (127.00 min and 4.27 respectively), they were higher in the morning. the animals remained under shade for an average of 43.49% (with trees with 8 m) and 49.81% (with trees with 18 m) of the time. it was concluded that the presence of trees modify the time and the frequency in grazing and idle; however, it does
Um estudo sobre hipertens?o arterial sistêmica na cidade de Campo Grande, MS
Souza, Ana Rita Araújo de;Costa, Anselmo;Nakamura, Diogo;Mocheti, Leandro Nascimento;Stevanato Filho, Paulo Roberto;Ovando, Luiz Alberto;
Arquivos Brasileiros de Cardiologia , 2007, DOI: 10.1590/S0066-782X2007000400013
Abstract: objectives: to detect the actual prevalence of systemic hypertension in the city of campo grande, ms, brazil, and frequent factors. methods: cross-sectional study with a randomized sample of the adult population of the city of campo grande, ms, in a total of 892 individuals. a questionnaire on age, gender, level of education, smoking, alcohol consumption, and aspects of the treatment was applied. anthropometric data (weight and height) were collected. according to the who, a bmi<25 kg/m2 was considered normal weight; 25>bmi<30 overweight; and bmi> 30 obesity. criteria for hypertension were based on the jnc vii report, with blood pressure cut-off values of 140 x 90 mmhg. results: the prevalence of hypertension was 41.4%, varying with age (up to 29 years: 11.8%; 30-39: 24.8%; 40-49: 43.3%; 50-59: 42.4%; 60-69: 48.6% and > 70: 62.3%). a higher prevalence was observed among men (51.8%), whereas among women the prevalence was 33.1%.individuals with basic level of education tended to present higher rates. among overweight and obese individuals, a higher prevalence of hypertension was observed: normal bmi (27.9%), overweight (45.6%) and obesity (58.6%). above 60 years of age, a higher percentage of isolated systolic hypertension was observed, with 16.4% (60-69 years) and 24.6% (>70 years). daily or weekly alcohol consumption was also related to a higher incidence, of 63.2% and 47.2%, respectively. only 59.7% were known to be hypertensive. of the hypertensive individuals, 57.3% were undergoing some type of treatment. of those undergoing regular treatment, 60.5% presented hypertension. conclusion: the prevalence of hypertension was 41.4%, therefore higher than the average verified in some studies. this calls the attention for worsened epidemiologic conditions and cardiovascular repercussions, thus showing the need for higher public investment on education and orientation of these population groups as regards prevention.
Extra??o de incisivo inferior: uma op??o de tratamento
Pinto, Mard?nio Rodrigues;Mottin, Leandro Pereira;Derech, Carla D'Agostini;Araújo, M?nica Tirre de Souza;
Revista Dental Press de Ortodontia e Ortopedia Facial , 2006, DOI: 10.1590/S1415-54192006000100015
Abstract: extraction of lower incisors can be considered a treatment option in cases of class i malocclusions with mandibular crowding, specially when a tooth-size discrepancy is observed between lower and upper arch; that can be demonstrated through bolton analysis. this dental discrepancy is normally due to upper teeth's decrease in width and lower teeth's increase in width. in this clinical case, the treatment with lower incisor extraction, provided a quick therapy, with minimum undesirable effects.
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