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Search Results: 1 - 10 of 12736 matches for " Tarquinio Mateus Magalh?es "
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Estimation of Tree Biomass, Carbon Stocks, and Error Propagation in Mecrusse Woodlands  [PDF]
Tarquinio Mateus Magalhes, Thomas Seifert
Open Journal of Forestry (OJF) , 2015, DOI: 10.4236/ojf.2015.54041
Abstract: We performed a biomass inventory using two-phase sampling to estimate biomass and carbon stocks for mecrusse woodlands and to quantify errors in the estimates. The first sampling phase involved measurement of auxiliary variables of living Androstachys johnsonii trees; in the second phase, we performed destructive biomass measurements on a randomly selected subset of trees from the first phase. The second-phase data were used to fit regression models to estimate below and aboveground biomass. These models were then applied to the first-phase data to estimate biomass stock. The estimated forest biomass and carbon stocks were 167.05 and 82.73 Mg·ha-1, respectively. The percent error resulting from plot selection and allometric equations for whole tree biomass stock was 4.55% and 1.53%, respectively, yielding a total error of 4.80%. Among individual variables in the first sampling phase, diameter at breast height (DBH) measurement was the largest source of error, and tree-height estimates contributed substantially to the error. Almost none of the error was attributable to plot variability. For the second sampling phase, DBH measurements were the largest source of error, followed by height measurements and stem-wood density estimates. Of the total error (as total variance) of the sampling process, 90% was attributed to plot selection and 10% to the allometric biomass model. The total error of our measurements was very low, which indicated that the two-phase sampling approach and sample size were effective for capturing and predicting biomass of this forest type.
Análise físico-química e sensorial de doce de leite produzido sem adi??o de sacarose
Milagres, Maria Patrícia;Dias, Geruza;Magalhes, Mirella Araújo;Silva, Mateus Ottomar;Ramos, Afonso Mota;
Revista Ceres , 2010, DOI: 10.1590/S0034-737X2010000400001
Abstract: this study was carried out to evaluate a milk fudge recipe prepared without addition of sugar. three formulations were prepared: milk fudge with addition of sugar (a), with the sweetener sucralose (b), and with cyclamate, saccharin and sorbitol (c). carrageenan was used in the formulations b and c. physiochemical and microbiological analyses required by the brazilian legislation and sensory analysis were performed. no significant difference was found in the acidity analyses among the samples, whereas significant difference was found for ph among the formulations. there was no significant difference in fat content, water activity and texture between formulations b and c, which statistically differed from formulation a. soluble solids content for formulation a was 63 °brix, whereas for formulations b and c was 26 °brix. there was significant difference for acceptance for all attributes under evaluation. the sensory analysis indicated a higher acceptance for the flavor of formulation, a than formulations b and c, and b was preferred to c. sensory tests for texture and global impression indicated that formulation a was preferred to b and c, and the last two had the same acceptance. the fat content of formulation a was lower than the other two. in the instrumental texture analysis, formulations b and c had lower resistance to penetration than formulation a. all microbiological analyses of formulations a, b and c complied with the standards required by the legislation. milk fudge formulated with sucralose (b) is thus a good market alternative to formulations with sucrose (a), since it had similar acceptance to common milk fudges.
Aduba??o nitrogenada de sorgo granífero consorciado com capim em sistema de plantio direto
Mateus, Gustavo Pavan;Crusciol, Carlos Alexandre Costa;Borghi, émerson;Pariz, Cristiano Magalhes;Costa, Ciniro;Silveira, Jo?o Paulo Franco da;
Pesquisa Agropecuária Brasileira , 2011, DOI: 10.1590/S0100-204X2011001000007
Abstract: the objective of this work was to evaluate the effect of nitrogen fertilization management on single and intercropped sorghum with marandu and momba?a grasses, and to determine the forage dry weight yield in the 2003/2004 and 2004/2005, in a no-tillage system. the experimental design was in randomized block, in a 3x5 factorial arrangement, with four replicates. the treatments consisted of three sorghum cropping systems (single and intercropped with marandu and momba?a grasses in the rows) and five nitrogen fertilizer managements: 30-70; 70-30; 50-50; 100-0; and 0-100 kg ha-1 of n, applied at sowing and topdressing, respectively. intercropping did not affect sorghum nutrition nor grain yield. only in the first growth season, the 50-50 kg ha-1 of n splitting increased grain yield. straw management interfered in sorghum establishment during the second growth season and decreased grain yield. the highest rates of n topdressing increased forage dry weight yield of marandu grass and, applied at sowing, n highest rates increased this attribute in momba?a grass.
Nutri??o e produtividade de híbridos de sorgo granífero de ciclos contrastantes consorciados com capim-marandu
Crusciol, Carlos Alexandre Costa;Mateus, Gustavo Pavan;Pariz, Cristiano Magalhes;Borghi, émerson;Costa, Ciniro;Silveira, Jo?o Paulo Franco da;
Pesquisa Agropecuária Brasileira , 2011, DOI: 10.1590/S0100-204X2011001000017
Abstract: the objective of this work was to evaluate the effect of the intercropping with marandu grass on the nutrition and yield of sorghum hybrids with contrasting-cycle, in no-tillage system. it was used a randomized block experimental design in a factorial arrangement (2x2), with six replicates. the treatments consisted of two sorghum hybrids with contrasting cycles (p8118, medium cycle; and p8419, early cycle) and two crop systems (single and intercropped with marandu grass in the seed row), with the seeding done in the early december. nutrition, agronomic traits, production components, and dry matter and grain yields of the sorghum hybrids were evaluated. except for potassium and sulphur, the leaf contents of the other nutrients were appropriate in all treatments for sorghum cropping. the hybrid p8118 had the highest grain yield and, after the intercropping, it contributed for the highest forage dry matter yield of marandu grass in the cut performed in october. the intercropping of contrasting-cycle sorghum hybrids and marandu grass does not affect sorghum nutrition, and dry matter and grain yields, in comparison with the single cropping, irrespectively of the hybrid cycle.
Duodenopancreatectomia: avalia??o dos resultados em 41 pacientes
Rocha, Luiz Carlos Gomes;Queiroz, Fábio Lopes de;Magalhes, Eudes Arantes;Santos, Fernando Augusto de Vasconcellos;Caldeira, Daniel Adonai Machado;Ribas, Mateus de Almeida;
Revista do Colégio Brasileiro de Cirurgi?es , 2006, DOI: 10.1590/S0100-69912006000600011
Abstract: background: the aim of this study was to present data from 41 patients submitted to pancreaticoduodenectomies at the hgip - ipsemg, in belo horizonte, mg. methods: from 1997 to 2004, 41 patients underwent pancreaticoduodenectomy as treatment for neoplasms. data regarding the operative procedure were collected prospectively. the main operation was the classical whipple procedure. pylorous-preserving procedures were not used routinely. the pancreaticojejunostomy was performed in a duct-to-mucosa fashion. postoperative mortality and complications were analyzed. to assess the differences in outcome with the increasing experience of the surgical staff, the study was divided in two periods of four years each: from 1997 to 2000, and from 2001 to 2004. results: postoperative complications occurred in 58% of the patients, with a 22% mortality rate. the most frequent complications were pneumonia and surgical wound infection. four patients (10%) developed pancreatic fistulas, which were all treated successfully employing a conservative approach. the need for intra-operative blood transfusion was associated with a worse prognosis. there was a trend toward less complications and deaths between 2001 and 2004, not statistically significant. the 5-year survival rate was 35% for all patients and 26% when considering only those with adenocarcinoma of the head of the pancreas. conclusion: pancreaticoduodenectomy is a complex surgical procedure with high rates of morbidity and mortality. nevertheless, with the increasing experience of surgical, anesthetical, and intensive care staff a reduction in the frequency of complications is noted.
Intake and performance of feedlot cattle fed diets based on high and low Brix sugar cane with or without calcium oxide and corn silage
Magalhes, Felipe Antunes;Valadares Filho, Sebasti?o de Campos;Menezes, Gustavo Chamon de Castro;Gionbelli, Mateus Pies;Zanetti, Diego;Machado, Marcelo Grossi;Pina, Douglas dos Santos;Komura, Koiti;
Revista Brasileira de Zootecnia , 2012, DOI: 10.1590/S1516-35982012000600026
Abstract: the objective of this study was to evaluate low and high brix diets, treated or not with 5 g of calcium oxide per kg of natural matter, and corn silage on intake, digestibility and performance of beef cattle. forty cattle with initial body weight (bw) of 350 kg were used: five composed the control group, 30 were distributed into random blocks (control) and the other five were distributed in a 5 × 5 incomplete latin square, with the objective of determining digestibility. the 30 animals evaluated for performance were slaughtered and empty body weight (epw), carcass dressing and meat cuts were determined. the diet with corn silage (cs) presented the best intake of the other ingredients and the best weight gain, except for neutral detergent fiber intake in g/kg of bw. only carcass dressing, in relation to bw and ebw, was not affected by the treatments, and the others were greater for animals fed diets with sugar cane silage. animals fed diets with high brix sugar cane silage and treated high brix sugar cane silage presented lower intake of indigestible neutral detergent fiber and neutral detergent fiber corrected for ash and protein (g/kg of bw) in relation to diets with low and high brix sugar cane silage, respectively. animals fed diets with corn silage presented higher digestibility, except for crude protein and non-fibrous carbohydrates. animals subjected to diets with corn silage presented low excretion of nitrogen compounds and higher microbial crude protein synthesis. animals fed sugar cane silage present greater intake, performance and digestibility. the use of lime during 15 or 20o brix sugar cane ensilage does not alter intake, digestibility or performance of beef cattle.
Intake, performance, digestibility, microbial efficiency and carcass characteristics of growing Nellore heifers fed two concentrate levels
Gionbelli, Mateus Pies;Valadares Filho, Sebasti?o de Campos;Detmann, Edenio;Paulino, Pedro Veiga Rodrigues;Valadares, Rilene Ferreira Diniz;Santos, Tathyane Ramalho;Silva, Luiz Fernando Costa e;Magalhes, Felipe Antunes;
Revista Brasileira de Zootecnia , 2012, DOI: 10.1590/S1516-35982012000500023
Abstract: the objective of this study was to evaluate nutrients and dry matter intake, average daily gain, feed efficiency and digestibility of diets, microbial efficiency, cold carcass yield and basic cuts yields of young nellore heifers receiving two concentrate levels. nineteen heifers with initial average weight of 165.6±29.8 kg were used. three animals were used in a trial to determine the digestibility and microbial efficiency of the two levels of concentrate (225 and 450 g/kgdm) and a treatment with a restricted intake maintenance level. the remaining 16 heifers were confined for 168 days for evaluation of performance and intake, divided into two levels of concentrate. every 42 days, four animals, two from each concentrate level, were slaughtered to determine carcass characteristics, making a 2 × 4 factorial arrangement. digestibility and microbial efficiency were not affected by concentrate level or intake level, both for ad libitum and restricted feeding. heifers fed 450 g/kgdm concentrate diet had greater average daily gain than those fed 225 g/kgdm concentrate. dry matter intake and feed efficiency did not differ between levels of concentrate. average daily gain (kg/day), dry matter intake (% body weight/day) and feed efficiency were higher in the first period of feedlot (0-42 days) compared with the other (42 to 168 days). heifers fed 450 g/kgdm concentrate had greater average daily gain than those fed 225 g/kgdm concentrate.
Cria??o de questionário para detec??o de comportamentos atípicos em bebês
Habib, Es;Magalhes, LC;
Brazilian Journal of Physical Therapy , 2007, DOI: 10.1590/S1413-35552007000300002
Abstract: introduction: regulatory disorders (rds) are manifested by sensorimotor, sleep, feeding and adaptation abnormalities in the first three years of life, which seem to indicate future child development problems. there is evidence that rds are related to attention, learning and behavioral problems that are observed at school age. therefore, it is important to invest in resources that enable their early detection. the objective of this study was to describe the process of creating a questionnaire to detect atypical behavior suggestive of rds, among 6 to 12-month-old infants. method: the instrument was developed in two stages: (a) planning and constructing the test and (b) content validity examination through an expert panel consisting of researchers and professionals with recognized experience in the field. results: the data indicated that the topic is relevant and that, according to the scores from the panel, the items in the questionnaire are easily observed (96.8%), clearly written (94.5%), assess important aspects of behavior (89.6%) and can potentially detect atypical behavior in 6 to 12-month-old infants (85.4%). conclusion: based on this study, the items were reviewed, resulting in a questionnaire with 50 items that will be applied experimentally in future work. it is expected that the questionnaire will be useful for early detection of problems that affect a great number of children.
A cobran?a do ouro do rei nas Minas Gerais: o fim da capita??o - 1741-1750
Magalhes, Joaquim Romero;
Tempo , 2009, DOI: 10.1590/S1413-77042009000200009
Abstract: the capitation or individual tax was a collection procedure equivalent to one fifth or the gold extraction in minas gerais. this 1735 royal imposition lasted till 1750 and caused strong opposition from the municipalities in that region. many attempts were made to abrogate it until the new king d. josé decided to revoke it. it is the aim of this article to survey the capitation challenge process.
O jogo como pretexto educativo: educar e educar-se em curso de forma??o em saúde
Magalhes, Cleidilene Ramos;
Interface - Comunica??o, Saúde, Educa??o , 2007, DOI: 10.1590/S1414-32832007000300021
Abstract: this paper focuses on an educational experiment with the use of a game, which was carried out with freshmen medical students from a public federal education institution. the game was used as a privileged strategy to appraise the students' communication, spontaneity, and sensitivity in the health educational process. through this game it was possible to broach the subject "mental health" to the students, and they have, as a result, expressed their feelings as beginners in a medicine course. this experience has led to the learning of both students and professors, what in a freirean perspective is seen as a dialogic process of mutual formation. its development prompted the rethinking of teaching in health, as well as subsidized the re-orientation of the process of preventing and promoting mental health by means of proposals and supporting programs to students already enrolled in the institution.
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