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Search Results: 1 - 10 of 377633 matches for " Lúcio de Oliveira de;Machado "
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Varia??o da densidade de fluxo de seiva e do potencial hídrico foliar nas faces leste e oeste da copa de laranjeira 'Valência'
Vasconcelos, Lúcio Flavo Lopes;Ribeiro, Rafael Vasconcelos;Oliveira, Ricardo Ferraz de;Machado, Eduardo Caruso;
Revista Brasileira de Fruticultura , 2010, DOI: 10.1590/S0100-29452010005000004
Abstract: this paper aimed to study the effect of diurnal and seasonal variation of the environmental factors on the sap flow density (sfd) and leaf water potential (ψl) in the east and west side of the canopy of 'valencia' sweet orange trees under field conditions, with no irrigation system. were evaluated three plants, whose planting rows were north-south oriented. the evaluations were performed during one day in each season of the year: summer, autumn, winter and spring. the values of water potential measured at predawn ranged from -0,31 mpa, in the day 12/10/05, to -1,1 mpa, in the day 08/30/05, however there was no significant difference between the east and west sides of the canopy. at the afternoon, leaves at the west side showed smaller (p<0,05) water potential than the ones at east position, with values varying between -0,95 (12/10/05) and -1,89 mpa (08/30/05). the largest air evaporative demand that is verified at afternoon induces to a larger water deficit in the west side of the canopy independent of the time of the year and, in consequence, larger sfd in well-watered plants under conditions of days completely sunny. under water deficit conditions (low values of ψl), the west side of the plants is more sensible to that condition, showing reduction of sfd.
Abelhas Euglossini (Apidae) de áreas de Mata Atlantica: abundancia, riqueza e aspectos biológicos
Peruquetti, Rui Carlos;Campos, Lúcio Antonio de Oliveira;Coelho, Claudia Diniz Pinto;Abrantes, Célio Vicente Machado;Lisboa, Luciane Cristina de Oliveira;
Revista Brasileira de Zoologia , 1999, DOI: 10.1590/S0101-81751999000600012
Abstract: collection data of euglossinae males from parque estadual do rio doce (perd) and vi?osa, both areas with remnants of atlantic rain forest (mata atlantica) in minas gerais state, brazil are presented. comparisons made among three fragments with different sizes and states of disturbance from vi?osa showed differences in abundance of most common species and apparently, eulaema nigrita lepeletir, 1841 can be an useful indicator of disturbed sites. some populations of euglossine bees seems to be restrict to a forest fragment, there being few or no flow of individuals or species of one fragment to another, even when they are only 1 km apart. 15 species of euglossines were sampled in perd, and the most abundant was eulaema cingulata (fabricius, 1804). at vi?osa, 10 species were sampled, e. nigrita was the predominant one. methyl salicylate attracted no males at both sites, in spite of large numbers of species and individuals sampled using this bait in other regions. the majority of species and individuals were collected in the rainy season. only 0,58% of sampled males carried orchid pollinia (catasetum richard, cycnoches lindley and coryanthes hook) on their bodies. emergence data of four species of euglossa latreille, 1802 reared from trap nests suggest that sex ratio in euglossini is not a constant within the tribe. a list of 57 euglossine species now known to occur in mata atlantica are offered.
Rela??o de indicadores antropométricos com fatores de risco para doen?a cardiovascular
Oliveira, Mirele Arruda Michelotto de;Fagundes, Regina Lúcia Martins;Moreira, Emília Addison Machado;Trindade, Erasmo Benício Santos de Moraes;Carvalho, Tales de;
Arquivos Brasileiros de Cardiologia , 2010, DOI: 10.1590/S0066-782X2010005000012
Abstract: background: studies have been carried out to identify the best anthropometric predictor of chronic diseases in different populations. objective: to verify the relation between anthropometric measures and risk factors (lipid profile and blood pressure) for cardiovascular diseases. methods: transversal study carried out with 180 males and 120 females, with mean age 39.6±10.6 years old. body mass index (bmi), waist circumference (wc), body fat percentage (%bf), waist-to-hip ratio (whr), lipid profile, glycemia and blood pressure were the variables assessed. results: bmi, wc and whr were higher among males, and %bf were higher among females (p<0.001). the proportion of altered cases of whr and %bf in relation to ldl-cholesterol and total cholesterol (tc) was higher among males. the individuals considered normal for wc presented alteration in the values of ldl-c, tc and hdl-cholesterol. there was a correlation between bmi and wc (males: r=0.97 and females: r=0.95; p<0.001). among males, the best correlation (p<0.001) was presented between wc and whr (r=0.82) and among females, %bf and wc (r=0.80). triglycerides (tg) presented correlation to whr (males: r=0.992; females r=0.95; p<0.001), and to wc (males: r=0.82; females r=0.79; p<0.001). in the multiple analysis (prevalence ratio - pr, confidence interval - ci), the bmi were associated with total cholesterol (pr=1.9; 95%ci 1.01-3.69; p=0.051) among males and slightly associated with tg/hdl-cholesterol (pr= 1.8; ic95% 1.01-3.45; p=0.062) among females. conclusion: bmi and whr were the anthropometric indicators with strongest relation to lipid profile in both sex groups. this data support the hypothesis that bmi and whr may be considered as risk factors for cardiovascular disease.
The Influence of Resistance Exercise Training on the Levels of Anxiety in Ischemic Stroke
Felipe José Aidar,Ricardo Jacó de Oliveira,António José Silva,Dihogo Gama de Matos,Mauro Lúcio Mazini Filho,Robert C. Hickner,Victor Machado Reis
Stroke Research and Treatment , 2012, DOI: 10.1155/2012/298375
Abstract: The aim of this pilot study was to analyze the effect of a strength training program on indicators of trait and state anxiety in patients with ischemic stroke. The subjects were divided into two groups: experimental group (EG) consisting of 11 subjects aged years and a control group (CG) with 13 subjects aged years. EG underwent 12 weeks of strength training, with a frequency of three times a week. For data collection, a State-Trait Anxiety Inventory (STAI) was used. Significant differences were found between pre- and posttest in EG for trait anxiety ( pretest posttest) and state anxiety ( pretest posttest) with no differences in CG for trait anxiety ( pretest posttest) and state anxiety ( pretest posttest). In the evaluation between the groups, significant differences were found for all indicators of trait anxiety ( EG; CG) and state anxiety ( EG; CG). This pilot study indicates that strength training may provide an improvement in trait and state anxiety more than one year after stroke. 1. Introduction Stroke is linked to cognitive dysfunction and functional impairment, leading to mobility difficulty and interference in social matters that can contribute to depression [1]. Thus, depression and anxiety should be adequately treated to improve functional aspects of life [2]. Anxiety and depression tend to result in decreased adherence to treatment, consequently resulting in reductions in social interactions and motivation. These changes affect overall health [3]. Physical exercises, including strength training, have been used primarily as a form of rehabilitation and may be used for patients who have been affected by stroke. The application of these exercises is a factor which leads to improvements in activities of daily living, posture, and pain reduction [4–6]. Similarly, strength training has been used as a means of improving cardiopulmonary function in the elderly population, where the occurrence of a stroke is more common [7]. Strength training has currently been listed as a means of promoting improvements in functionality [8–10] and quality of life [11] of individuals who suffered a stroke, especially one of ischemic origin. However, there are few studies evaluating the effects of physical activities, especially those of strength training, in people with sequelae caused by stroke, and their influence on psychosocial aspects. Thus, our aim in this study was to assess the influence of strength training on indicators of trait and state anxiety in people with sequelae of ischemic stroke (IS). 2. Methods 2.1. Sample The eligibility criteria adopted
Metodologia de inocula??o de fungos causadores da podrid?o peduncular em mam?o
Nery-Silva, Flávia Andrea;Machado, José da Cruz;Resende, Mário Lúcio Vilela de;Lima, Luiz Carlos de Oliveira;
Ciência e Agrotecnologia , 2007, DOI: 10.1590/S1413-70542007000500015
Abstract: the stem-end-rot, one of the major post-harvest diseases in papaya (carica papaya l.), has not been very well investigated concerning ecological and epidemiological aspects of the brazilian conditions. so that studies can be developed in the referred to areas, it is necessary to use the right methodologies that allow the reproduction of the symptons of this disease in laboratory conditions. this study aimed to stablish a method for inoculating papaya fruits to reproduce the symptons of the stem-end-rot through tree procedures: 1) cut of the stem followed by deposition of fungal mycelium in agar discs; 2) deposition of the spore suspension into the stem's region followed by injuries, and 3) application of spore suspension in the stem's region without injuries. the inoculation was performed with the fungi p. caricae-papayae, c. gloeosporioides, b. theobromae e f. solani, and inoculated fruits were placed under temperatures of 20o and 25oc. the results indicate that there were no effects of the tested temperatures in the development of all fungi, in the different methods of inoculation. the highest severity of stem-end-rot (score 1-5) was observed in fruits inoculated by the methods of injection in the stem, independing of the fungus used. the fungi c. gloeosporioides and p. carica-papaya presented the highest levels of severity in the disease followed by b. theobromae and f. solani.
Balan?o de nitrogênio, degradabilidade de aminoácidos e concentra??o de ácidos graxos voláteis no rúmen de ovinos alimentados com feno de Stylosanthes guianensis
Ladeira, Márcio Machado;Rodriguez, Norberto Mario;Borges, Iran;Gon?alves, Lúcio Carlos;Saliba, Eloísa de Oliveira Sim?es;Miranda, Lídia Ferreira;
Revista Brasileira de Zootecnia , 2002, DOI: 10.1590/S1516-35982002000900026
Abstract: seven sheep fed s. guianensis hay were used to evaluate ruminal amino acid degradability, nitrogen balance and rumen volatile fatty acid (vfa) concentrations. nylon bags technique was used for determination of the in situ degradabilities of amino acids. bags were collected at 6, 24 and 48 hours after insertion. duodenum and feces samples were used to determine amoniacal-n and non-amoniacal-n. to determine ruminal vfa concentrations, samples of 80 ml were collected immediately before feeding and 2, 4, 6 and 8 hours after. nitrogen balance was 6.0 g/day. s. guianensis had 10.4 and 6.3 g of methionine and lysine, respectively, per 100 g of total amino acids. non essential amino acids had degradation rates twice than essentials. aminoacitic profile of undegradable protein was different than the original feed protein. the acetate:propionate ratio was 4.31. high concentrations of methionine and its low degradability make the s. guianensis an important feed when this amino acid is limiting.
Molecular and serological detection of Leishmania spp. in captive wild animals from Ilha Solteira, SP, Brazil
Jusi, Márcia Mariza Gomes;Starke-Buzetti, Wilma Aparecida;Oliveira, Trícia Maria Ferreira de Sousa;Tenório, Michely da Silva;Sousa, Lúcio de Oliveira de;Machado, Rosangela Zacarias;
Revista Brasileira de Parasitologia Veterinária , 2011, DOI: 10.1590/S1984-29612011000300008
Abstract: leishmaniasis is a zoonotic disease that affects 12 million people worldwide. several mammalian species can serve as a reservoir for this disease. dogs are the main reservoir for visceral leishmaniasis in urban areas, which has become a serious public health concern in brazil. the aim of this study was to evaluate the presence of leishmania spp. in captive wild animals from ilha solteira, s?o paulo, brazil. blood and various tissues samples were collected from animals of five different species: speothos venaticus, chrysocyon brachyurus, cerdocyon thous, pseudalopex vetulus, and procyon cancrivorus. antibodies against leishmania spp. were detected in three wild canids by indirect fluorescent antibody test (ifat) and enzyme-linked immunosorbent assay (elisa). pcr analyses of blood and bone marrow from all animals were negative, but leishmania dna was found in the tissues and skin of seropositive animals. positive pcr samples were also positive for leishmania donovani complex. analysis of sequenced pcr products showed similarities with different regions of leishmania (leishmania) infantum and leishmania (leishmania) chagasi kinetoplastids. measures to control visceral leishmaniasis in wild animals kept in brazilian zoos should be established, as no disease control programs are currently available.
A síndrome de burnout e os valores organizacionais: um estudo comparativo em hospitais universitários
Borges, Livia Oliveira;Argolo, Jo?o Carlos Tenório;Pereira, Ana Lígia de Souza;Machado, Emília Alice Pereira;Silva, Waldylécio Souza da;
Psicologia: Reflex?o e Crítica , 2002, DOI: 10.1590/S0102-79722002000100020
Abstract: the present study analyzes the relationship between the organizational values and the levels of the burnout syndrome in three universitarian hospitals. it was developed with the sample of 205 health professionals, though to an application of structured questionnaires. the data were submitted quantitative analysis (for example, analysis of frequency distributions, analyses of variance and regression analyses). the results show a convergence among scores of ideal values for organizations and divergences among the scores of real values and the differences from ideal and real values. the participants differ in the advance of the burnout syndrome process for organizations. the results evidences the mediation role of the organizations in the relationship between organizational values and the burnout syndrome, so that the axiological poles effectively related to the referred syndrome depend to the general configuration of its organizational culture of each one and of the conflicts that are inherent to it.
Inibidores de proteases encontrados em sementes de Caesalpinia echinata (paubrasil): isolamento e caracteriza??o do inibidor de tripsina
Oliveira, Lúcio Garcia de;Gozzo, Andrezza Justino;Nunes, Viviane Abreu;Silva, Ilana Cruz;Sampaio, Misako Uemura;Sampaio, Claudio Augusto Machado;Araújo, Mariana da Silva;
Revista Brasileira de Farmacognosia , 2002, DOI: 10.1590/S0102-695X2002000300035
Abstract: caesalpinia echinata, o pau-brasil, é uma árvore pertencente à família das leguminosas, sub-família caesalpinoidae. como já foram encontrados inibidores de proteases em sementes de outras leguminosas, o objetivo do trabalho é purificar e caracterizar o inibidor de tripsina extraído das sementes de c. echinata. após extra??o salina e precipita??o por acetona, os inibidores foram purificados por cromatografia de troca i?nica e filtra??o em gel, apresentando massas moleculares de 19,5 e 10 kda e constante de inibi??o da ordem de nm.
Avalia??o do feno de Arachis pintoi utilizando o ensaio de digestibilidade in vivo
Ladeira, Márcio Machado;Rodriguez, Norberto Mario;Borges, Iran;Gon?alves, Lúcio Carlos;Saliba, Eloísa de Oliveira Sim?es;Brito, Sérgio Corrêa;Sá, Leonardo Augusto Pinto de;
Revista Brasileira de Zootecnia , 2002, DOI: 10.1590/S1516-35982002000900025
Abstract: six sheep were used to evaluate intake and total apparent digestibilities of dry matter (dm), organic matter (om), crude protein (cp), ether extract (ee), total carbohydrates (cho), neutral detergent fiber (ndf), non fibrous carboidratos (nfc), acid detergent fiber (adf), cellulose (cel), hemicellulose (hcel) and energy of arachis pintoi hay. nitrogen balance was also determined. animals were kept in metabolic cages and received a. pintoi hay plus mineral salt. the arachis pintoi was harvested with approximately 100 days. the supply of the hay was ad libitum with 20% allowed refusals. the experiment had 15 days of adaptation period and five days for sampling of hay, refusals, feces and urine samples. chromium oxide was used as external marker to estimate fecal production. the intake of dm and om of a. pintoi was 90.17 and 85.67 g/kg0.75, respectively. the crude protein, total digestible nutrients (tdn) and metabolizable energy (em) were, respectively, 14.3%, 66.4% and 2.0 mcal/kg dm. the nitrogen (n) balance was 12.1 g/day and represented 40.2% of total intake n. the total apparent digestibilities of dm, om, cp, ee, cho, ndf, nfc, adf, cel, hcel and energy were 64.4, 68.4, 70.0, 63.4, 68.2, 53.6, 93.3, 47.2, 62.8, 66.8 and 63.7%, respectively. the arachis pintoi hay showed high intake of digestible nutrients for a tropical legume forages, what gives support for its use in the feeding of ruminants.
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