Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

2019 ( 155 )

2018 ( 345 )

2017 ( 362 )

2016 ( 383 )

Custom range...

Search Results: 1 - 10 of 201933 matches for " Pedro Henrique Costa de Mattos "
All listed articles are free for downloading (OA Articles)
Page 1 /201933
Display every page Item
Evaluation of sugarcane genotypes and production environments in Paraná by GGE biplot and AMMI analysis
Pedro Henrique Costa de Mattos,Ricardo Augusto de Oliveira,Jo?o Carlos Bespalhok Filho,Edelclaiton Daros
Crop Breeding and Applied Biotechnology , 2013,
Abstract: The purpose of this study was to evaluate sugarcane genotypes for the trait tons of sugar per hectare (TSH), stratifying five production environments in the state of Paraná. The performance of 20 genotypes and 2 standard cultivars was analyzed in three consecutive growing seasons by the statistical methods AMMI and GGE Biplot. The GGE Biplot grouped the locations into two megaenvironments and indicated the best-performing genotypes for each one, facilitating the selection of superior genotypes. Another advantage of GGEBiplot is the definition of an ideal genotype (G) and environment (E), serving as reference for the evaluation of genotypes and choice of environments with greater GE interaction. Both models indicated RB006970, RB855156 and RB855453 as the genotypes with highest TSH and S o Pedro do Ivai as the environment with the greatest GE interaction. Both approaches explained a high percentage of the sum of squares, with a slight advantage of AMMI over GGE Biplot analysis.
Nutri??o mineral de plantas ornamentais: VI. efeitos de parcelamento de aduba??o nitrogenada e potássica na cultura de Gladiolus grandiflorus L., cv. "Friendship'
Fernandes, Pedro Dantas;Haag, Henrique Paulo;Sim?o, Salim;Mattos, Jairo Ribeiro de;
Anais da Escola Superior de Agricultura Luiz de Queiroz , 1974, DOI: 10.1590/S0071-12761974000100049
Abstract: the presente experiments had as it objectives the cultivation of gladiolus grandiflorus, l., cv. 'friendship', in field conditions, studying the effects of parcelling of nitrogenous and potassic fertilization, in relation to corms, cormels and floral spikes production. theree were effects of parcelling fertilization on number and weight of corms, cormels and floral spikes. in general nitrogen influences more on number of corms and cormels while potassium influences on its weight.
Nutri??o mineral de plantas ornamentais: VII. estudos de aduba??o NPK na cultura de gladíolo (Gladiolus grandiflorus, cv. 'Perusi')
Fernandes, Pedro Dantas;Haag, Henrique Paulo;Sim?o, Salim;Mattos, Jairo Ribeiro de;
Anais da Escola Superior de Agricultura Luiz de Queiroz , 1974, DOI: 10.1590/S0071-12761974000100050
Abstract: studies on n, p. k fertilization of gladiolus (gladiolus grandiflorus, cv. 'perusi'). at the agricultural cooperative of holambra, jaguariúna sp, experiments with gladiolus were conducted with the objective of studying the effects of increasing dosis of n, r and k on the floral stems and corms production. the response of gladiolus to nitrogen, phosphorus and potassium varied with the size of the corm that was planted. the effects of each nutrient on several characteristics of plants are discussed.
Ischemia-reperfusion histopathology alterations of the rabbit intestinal wall with and without exclusion of the collateral mesenteric circulation supply
Gomes, Otoni Moreira;Brasileiro Filho, Geraldo;Porto, Luiz Alberto Bomjardim;Prata, Pedro Henrique de Lima;Paix?o, Rafael de Mattos;
Acta Cirurgica Brasileira , 2010, DOI: 10.1590/S0102-86502010000400003
Abstract: purpose: to evaluate the histopathology alterations of the intestinal mucosa of rabbits submitted to different times of mesenteric artery ischemia and reperfusion with and without celiac artery collateral circulation supply. methods: two groups of eight male new zealand white rabbits (weight 2.2-3.5 kg) were used in this study. in the group 1 animals, the proximal mesenteric artery was occluded for 60 min with an atraumatic vascular clamp, followed by reperfusion for 60 min. in the group 2 animals the small bowel and mesentery were cut 30cm and 60cm far from the gastroduodenal pyloric transition before the proximal mesenteric artery occlusion. small bowel biopsies were obtained before ischemia (control), after 30 min and 60 min of mesenteric ischemia and at 30 and 60 min. of mesenteric artery reperfusion. results: in the group i animals, the followings histopathology grade results were observed: t1, mean 0.4 + 0.29; t2, mean 1.9 ± 0.38; t3, 1.9 ± 0.33; t4, 1.2 ± 0.36 and t5, 1.2 ± 0.32. differences between t0 and t2 and between t3 and t4 were statistically significant (p<0.05). differences between t2 and t3 and t4 and t5 were not significant (p>0.5). in the group ii animals, it was observed: t1, mean 1.6 ± 0.33; t2, 2.4 ± 0.36; t3, 3.0 ± 0.35; t4 3.4 ± 0.31; t5, 3 ± 031. differences between t0 and t1, t1 and t2, and t2 and t3 were significant (p<0.05). differences between histopathology grades results of samples t1 to t5 in group 1 and 2 were statistically significant (p<0.5). conclusion: microscopic examination of the biopsies revealed significant evidence of worse small bowel wall ischemia-reperfusion lesions by exclusion of the celiac artery collateral circulation supply.
Assessment of weight gain and biological parameters of Rhipicephalus sanguineus females fed artificially via capillary tubes
Cunha, Nathalie Costa da;Rangel, Charles Passos;Piranda, Eliane Mattos;Rezende, Jania de;Teixeira, Rafaella Camara;Fonseca, Adivaldo Henrique da;
Ciência Rural , 2010, DOI: 10.1590/S0103-84782010000400028
Abstract: this study assesses the weight gain of partially engorged rhipicephalus sanguineus females that were artificially fed via capillary tubes and the influence of capillary tube feeding on the biological parameters of the non-parasitic stage of the species. the ticks were sorted into four groups, each containing ten females of a homogeneous weight. the groups were each treated for different feeding times, 2, 6, 12 and 24 hours. the weight gain of the artificially fed females was measured, and the biological parameters of the non-parasitic stage of the tick were observed for each treatment group. the statistical non-parametrical dunn and kruskal-wallis tests were used to compare the results. the mean weights (mg) were 0.2±2.4; 4.3±5.8; 7.4±5.8 and 12.0±11.2 for the 2, 6, 12 and 24 hours feeding groups, respectively. the weight of the fed groups increased as the capillary feeding time increased, and this relationship was highly significant (p<0.05) between the groups fed for 2 and 24 hours. no statistically significant differences (p>0.05) were observed in the parameters of the non-parasitic stage for the artificially fed groups. it can be concluded that artificial feeding via capillary tubes provides an efficient and easy method for the artificial intake of blood by r. sanguineus. furthermore, it was noted that the ticks fed in vitro were able to establish a new generation. the experimental method shows great promise in studies that aim to investigate biological disease agents.
Análise exploratória da utiliza??o do programa de qualidade GESPúBLICA nas institui??es federais de ensino superior
Fowler, Eliane D'Martin;Mello, Carlos Henrique Pereira;Costa Neto, Pedro Luiz de Oliveira;
Gest?o & Produ??o , 2011, DOI: 10.1590/S0104-530X2011000400011
Abstract: currently, great importance has been given to the quality of the public services offered to citizens. proposals of management have emerged in private and public organizations, including educational institutions, as a differential for the improvement of services offered. quality programs such as gespública have become an option for institutions interested in improving quality. the aim of this study is to determine which public institutions of higher education have a quality program such as gespública implemented. the motivations and constraints (inhibitors) to join the program were also investigated. the motivational factors for found for adhesion to the programs are: improvement in the attendance; providing satisfaction; continuous improvement in the institutional management processes; bureaucratic culture reduction; management based on processes and information (facts) and better valuation, qualification of the servers; and efficient information management.. the inhibitor factors found are insufficient structure/resources for the program implementation; program's cost;, low qualification and advanced age of the servers; institutional inexperience with quality programs; excessive bureaucracy; lack of consolidated examples of the program implementation in educational institutions.
Correla??o entre instabilidade radiográfica e presen?a do sinal de modic
Costa, Leandro Medeiros da;Hennemann, Sérgio Afonso;Abreu, Marcelo Rodrigues de;Antoneli, Pedro Henrique Lacombe;
Coluna/Columna , 2011, DOI: 10.1590/S1808-18512011000200010
Abstract: objective: this paper wants to evaluate the presence of modic (vertebral end-plate changes) and its association with segmental instability demonstrated on flexion, extension and neutral sagittal radiographs. method: sectional analysis of the images studies from 115 patients that were realized in the radiology service of the m?e de deus hospital in porto alegre (rs), from july/2008 until february/2010. a total of 575 segments from l1 to s1 were analyzed using mri and radiographic exams. results: it was analyzed 115 patients, 59 (51,30%) were female and 56 (48,70%) were male. the age ranged from 13 years and 06 months to 81 years and 02 months; the mean age was 43 years and 08 moths. with the criteria of instability used here, 224 unstable segments were found and 351 segments were stable, from this, the modic i was observed in seven unstable segments and in 22 stable segments. 32.58% of all unstable segments were observed on l4-l5, the most prevalent. conclusion: this study shows no association between radiographic instability and modic i presence.
Atividade antifúngica de Caryocar brasiliensis (Caryocaraceae) sobre Cryptococcus neoformans
Passos Xisto Sena,Santos Suzana da Costa,Ferri Pedro Henrique,Fernandes Orionalda de Fátima Lisboa
Revista da Sociedade Brasileira de Medicina Tropical , 2002,
Abstract: A grande incidência de criptococose em decorrência do aumento crescente de indivíduos imunodeprimidos e os efeitos colaterais aos fármacos utilizados para o tratamento desta infec o, tem incentivado a pesquisa de novos agentes antifúngicos. Através da técnica de dilui o em ágar, foi verificada a atividade antifúngica (in vitro) de diferentes constituintes de Caryocar brasiliensis sobre Cryptococcus neoformans. Verificou-se que a cera epicuticular retirada da folha, coletada em período de baixo índice pluviométrico (170,8mm de água), foi a parte mais ativa da planta, inibindo o crescimento de 91,3% (21/23) dos isolados de Cryptococcus neoformans em concentra o < a 250μg/mL.
Pedro Henrique da Costa Leite,Carlos André de Melo Alves,Cláudio Antonio Pinheiro Machado Filho
Revista de Contabilidade do Mestrado em Ciências Contábeis da UERJ , 2010,
Abstract: Um tema de pesquisa atual na indústria bancária é a gest o de riscos. Este estudo busca analisar o estágio de desenvolvimento da gest o do risco operacional em uma institui o financeira pública que atua no Brasil. A pesquisa é descritiva, usa o método estudo de caso e a coleta de dados emprega pesquisas bibliográfica, documental e de campo, aplicando-se questionário a gestores de risco operacional da institui o analisada. A análise utiliza a técnica de adequa o ao padr o (YIN, 2005) e os elementos de análise apresentam dezenove atividades agrupadas em cinco estágios para o desenvolvimento da gest o do risco operacional: ‘base tradicional’, ‘conscientiza o’, ‘monitoramento’, ‘quantifica o’ e ‘integra o’. Os resultados apresentam a institui o financeira estudada, as avalia es das atividades associadas a cada estágio previamente descrito e a atribui o de um estágio de desenvolvimento para gest o desse risco entre ‘quantifica o’ e ‘integra o’.
Similaridade da fauna de Chiroptera (Mammalia), da Serra Negra, municípios de Rio Preto e Santa Bárbara do Monte Verde, Minas Gerais, com outras localidades da Mata Atlantica
Nobre, Pedro Henrique;Rodrigues, Alexmar dos Santos;Costa, Igor de Almeida;Moreira, Artur Emílio da Silva;Moreira, Hugo Henrique;
Biota Neotropica , 2009, DOI: 10.1590/S1676-06032009000300015
Abstract: the southern slope of the serra negra region is located between the rio preto and santa bárbara do monte verde municipalities, state of minas gerais. the region is a mountain chain inserted in the atlantic rainforest domain. the studies were conducted in a rainforest at elevations of 800-1,200 m, where bats were captured in mist-nets installed at the ground level in the interior and edges of the forest. after 14 monthly samplings and total capture effort of 22,140 m2r.h, 246 bats belonging to phyllostomidae (12 species) and vespertilionidae (3 species) were captured. sturnira lilium was the most frequently captured species, followed by carollia perspicillata, desmodus rotundus and artibeus lituratus (33.7, 21.1, 19.1 and 16,3% of the captures, respectively). cluster analysis including serra negra and bat checklists of other patches of atlantic forest revealed that serra negra is more similar to the serra dos órg?os, state of rio de janeiro, southeastern brazil, than the other areas.
Page 1 /201933
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.