oalib

OALib Journal期刊

ISSN: 2333-9721

费用:99美元

投稿

匹配条件: “Pagliosa” ,找到相关结果约27条。
列表显示的所有文章,均可免费获取
第1页/共27条
每页显示
Intertidal to subtidal distribution of benthic macrofauna in an estuarine beach of Babitonga Bay, southern Brazil
Paulo Roberto Pagliosa
Biotemas , 2006,
Abstract: This paper reports on the spatial variation of a macrofaunal community along the intertidalsubtidal gradient of an estuarine beach located at the mouth of Babitonga Bay, in Southern Brazil. The fauna and sediment were sampled at 0, 5, 10, and 20 m depths in three transects. Differences in benthic assemblages among the depths were found to be significant and related to the major local processes of sediment changes. The analysis of taxa composition showed an impoverished community subject to wave action and erosionaccretion dynamics at landward stations (0 and 5 m depths). Seaward macrofauna (10 and 20 m depths) inhabiting sediments with higher organic content and poorly-sorted sands were more diverse and numerically dominated by ophiuroids and by cirratulid (Tharyx sp.) and maldanid (Clymenella brasiliensis) polychaetes. A breakdown in the zonation patterns of environment and community was detected where sediments produced by a creek outlet enabled increasing stability and higher densities of the soft bottom anthozoa Edwardsia sp. and the polychaete Lumbrineris atlantica. Additionally, the sediments with an excessive amount of fine particles were densely colonized (mean of 22,400 individuals.m-2) by C. brasiliensis. The local sediment characteristics were related to maldanid sediment-reworking. The macrofaunal species compositions along the sandy beaches at the mouths of the southern Brazilian estuarine systems were compared.
Considera??es sobre a obten??o e o uso do plasma rico em plaquetas e das células mesenquimais indiferenciadas em enxertos ósseos
Pagliosa, Geane Maciel;Alves, Geraldo Eleno Silveira;
Ciência Rural , 2007, DOI: 10.1590/S0103-84782007000400050
Abstract: the rich platelet plasma (rpp) and indiferenciate mesenchimal cells (imcs), or stem cells, have been widely studied because of their high potential of osteoinduction in bone grafts. however, the utilization of rpp and imcs must be done following correct methodology of isolation and use. the inappropriate methodology can be a determinant factor of its efficacy on bone grafts and can explain some controversial results of its utilization in bone grafts.
O global e o local: as empresas reflorestadoras e a comunidade cabocla de Postinho na Regi o Metropolitana de Curitiba = The global and the local: reforestation companies and the ‘cabocla’ community of postinho in the Curitiba metropolitan area, Paraná State
Hieda Maria Pagliosa Corona,Lenir Maristela Silva
Acta Scientiarum : Human and Social Sciences , 2010,
Abstract: O objetivo do presente artigo é analisar o processo de mudan a, vivenciado pelos agricultores familiares da comunidade de Postinho, localizada no município de Tijucas do Sul, na Regi o Metropolitana de Curitiba (RMC), Estado do Paraná, a partir da instala o de grandesempresas de reflorestamento (pinus e eucalipto) no entorno da comunidade. Tais transforma es foram constatadas durante as três etapas de pesquisa interdisciplinar (entrevista com lideran as einstitui es; entrevista dirigida com 32 famílias; entrevista aberta com sete famílias), realizada durante a constru o da tese defendida em 2006, junto ao Doutorado em Meio Ambiente e Desenvolvimento (MADE) da UFPR. Tais constata es serviram de ponto de partida para aanálise esbo ada neste artigo, o qual foi construído a partir de uma (re)interpreta o sobre o processo vivenciado pelos agricultores de Postinho, a partir do olhar da sociologia e da botanica. O desafio do presente artigo é entender em que medida uma comunidade cabocla, alicer ada num modo de vida tradicional, defronta-se com as press es, limita es e oportunidades que interferem nas possibilidades de sua permanência enquanto formato social, que mantém “particularidades” e “globalidades” em jogo. As inquieta es que movem as pesquisadorasreferem-se a entender em que medida as demandas do campo ambiental e do mercado globalizado da madeira penetram as estratégias dos agricultores familiares tradicionais e (re)significam aspectos da tradi o sem alterar substancialmente sua situa o de vida (RAYNAUT et al., 2002), o que coloca, em certa medida, em risco suas possibilidades de reprodu o social. The aim of the present article is to analyze the process of change experienced by family farmers of the community of Postinho, located in the city of Tijucas do Sul, in the Curitiba Metropolitan Area (RMC), Paraná State, since the settlement of big reforestation companies (pine and eucalyptus) in the community surroundings. Such transformations were evidenced during the three stages of interdisciplinary research (interview with leaderships and institutions; directed interview with thirty-two families; open interview with seven families), performed during the elaboration of the thesis presented in 2006, at the Doctorate Course in Environment and Development at UFPR. Such evidences were the starting point for the analysis outlined in this article, which was built from a (re)interpretation of the process lived by the farmers of Postinho, from the view of sociology and botany. The challenge of the current article is to understand what a ‘cabocla’ comm
Fatores predisponentes das complica es incisionaisde laparotomias medianas em eqüinos
Pagliosa Geane Maciel,Alves Geraldo Eleno Silveira
Ciência Rural , 2004,
Abstract: As complica es incisionais após laparotomia mediana em eqüinos têm prevalência de 35 a 87,5% e levam a aumento no período de convalescen a ou mesmo ao óbito. Os fatores predisponentes destas complica es s o pouco abordados na literatura médica eqüina e s o inerentes ao paciente, ao ato cirúrgico, à anestesia e ao período pós-operatório. Considera es sobre os cuidados no pré-operatório, tamanho da incis o, roupa do cirurgi o, escolha do fio cirúrgico e as condi es clínicas e comportamentais do eqüino s o salientadas entre os fatores predisponentes que, quando bem conhecidos, podem ser melhor administrados, no sentido de minimizar as complica es incisionais na laparotomia mediana.
O relatório Flexner: para o bem e para o mal
Pagliosa, Fernando Luiz;Da Ros, Marco Aurélio;
Revista Brasileira de Educa??o Médica , 2008, DOI: 10.1590/S0100-55022008000400012
Abstract: the flexner report, which is close to its 100 anniversary, and its author have been the center of debate and controversy until our days. this article presents a brief biography of abraham flexner and discusses the importance of his report for medical education. the authors analyze the relevance, the main criticisms and the limitations of his model for medical education. they start the analysis contextualizing the state of the art of the medical education at the time when the report was published and finish it, examining this kind of education in the present days. the authors also discuss the construction of a contemporaneous model taking into consideration the historical criticism of the model in which the physicians have been prepared, the present social needs of health, the new knowledge about the way we learn and its repercussions for the teaching-learning process as well as the national policy for undergraduate medical education.
Seeding quality and soybean yields from using different furrowers and operation speeds Qualidade de semeadura e produtividade da soja sob diferentes sulcadores e velocidades de opera o
Alcir José Modolo,Emerson Trogello,Eduardo Stefani Pagliosa,Rivanildo Dallacort
Semina : Ciências Agrárias , 2012,
Abstract: The sowing process for annual no-till crops affects the physical soil conditions around the seeds by exposing them to adverse conditions that may limit initial plant development and reduce potential yield. The use of seed drills that are not compatible with field conditions and the use of inappropriate seed drill speeds affect sowing performance. Therefore, this study aims to evaluate the effect of different seed drill types and operating speeds on soybean quality parameters and yield components. Two furrow opener (double disc and chisel) and four operating speed (0.86; 1.22; 1.47 and 1.94 m s-1) treatments were used. The following variables were evaluated: mean number of days until emergence, plant distribution uniformity, sowing depth, area of the soil disturbed, crop stand and grain yield. Overall, the chisel furrow opener provided a greater sowing depth and increased the disturbed soil area more than the double disc furrow opener. Increased operating speeds reduced crop stands and yields and increased the disturbed soil area. Em culturas anuais submetidas ao sistema plantio direto o processo de semeadura afeta o condicionamento físico do solo ao redor das sementes expondo as mesmas a condi es adversas, podendo limitar o desenvolvimento inicial das plantas e minimizar o potencial produtivo. O uso de sulcadores n o condizentes com a situa o de campo e de velocidades inadequadas s o fatores que afetam o bom desempenho da semeadura. Nesse contexto, este trabalho teve por objetivo, avaliar o efeito de diferentes sulcadores e velocidades de opera o sobre parametros de qualidade de semeadura e componentes de produtividade da cultura da soja. Os tratamentos foram compostos pela combina o entre dois sulcadores (disco e haste) e quatro velocidades de opera o (0,86; 1,22; 1,47 e 1,94 m s-1). Foram avaliados: o número médio de dias para a emergência, a uniformidade de distribui o de plantas, a profundidade de semeadura, a área de solo mobilizado, o estande de plantas e a produtividade de gr os. De acordo com os resultados, o sulcador tipo haste proporcionou maior profundidade de semeadura e área de solo mobilizada, quando comparado ao disco duplo defasado. O aumento da velocidade reduziu o estande de plantas e a produtividade da cultura e aumentou a área de solo mobilizada.
Obtaining Membership Functions from a Neuron Fuzzy System extended by Kohonen Network
Angelo Luis Pagliosa,Claudio Cesar de Sa,Fernando D. Sasse
Computer Science , 2005,
Abstract: This article presents the Neo-Fuzzy-Neuron Modified by Kohonen Network (NFN-MK), an hybrid computational model that combines fuzzy system technique and artificial neural networks. Its main task consists in the automatic generation of membership functions, in particular, triangle forms, aiming a dynamic modeling of a system. The model is tested by simulating real systems, here represented by a nonlinear mathematical function. Comparison with the results obtained by traditional neural networks, and correlated studies of neurofuzzy systems applied in system identification area, shows that the NFN-MK model has a similar performance, despite its greater simplicity.
Repeatability of Pre-Harvest Sprouting in Wheat  [PDF]
Eduardo Stefani Pagliosa, Valeria Carpentieri-Pipolo, Deoclécio Domingos Garbuglio, Thiago Henrique Oro, Karla Bianca de Almeida Lopes, Claudemir Zucareli
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.511174
Abstract:

This study aimed to detect genotypic differences in the resistance to sprouting of wheat grains, evaluate the effectiveness of different methods for inducing sprouting and identify, using repeatability estimates, the minimum number of spikes necessary for the adequate evaluation of the percentage of grain sprouting in the spike in order to assist in the selection of superior genotypes in breeding programs. Spikes from four wheat cultivars (Frontana, IPR Catuara, Quartzo and BRS 220) were evaluated using three methods for inducing grain sprouting in the spike (water immersion, rainfall simulation and germination chamber). To determine the most efficient method, repeatability coefficients were estimated through analysis of variance, principal components analysis and structural analysis based on correlation and covariance matrices. The induction of sprouting by immersion in water was the most effective method for indicating genotypic differences and may be used in breeding programs for this purpose. The repeatability method based on the components of covariance was more efficient. A minimum of 11 spikes is required to make a high-reliability estimate of the percentage of sprouted grains in the spike.

Agronomic performance of wheat cultivars in response to nitrogen fertilization levels
Benin, Giovani;Bornhofen, Elesandro;Beche, Eduardo;Pagliosa, Eduardo Stefani;Silva, Cristiano Lemes da;Pinnow, Cilas;
Acta Scientiarum. Agronomy , 2012, DOI: 10.4025/actasciagron.v34i3.14468
Abstract: the release of wheat cultivars with different nutritional demands and yield potential hinders generalized recommendations for nitrogen fertilization. this study was designed to evaluate the effects of different nitrogen fertilization levels (0, 60, 120 and 180 kg ha-1 of n) on the agronomic performance of six wheat cultivars (triticum aestivum l.) in two harvests. a randomized block factorial design with three replications was used. the response to fertilization levels was evaluated through ammi (additive main effects and multiplicative interaction) and gge (genotype main effects and genotype x environment interaction) biplot graphic methodologies and polynomial regression. there was genetic variability in response to nitrogen fertilization in the cultivars studied. the biggest increases in yield were observed under a more suitable water regime. the higher performance of yield components was associated with higher nitrogen fertilization levels.
Caracteriza??o reológica de concretos refratários bombeáveis
Pileggi, R. G.;Studart, A. R.;Pagliosa Neto, C.;Pandolfelli, V. C.;
Ceramica , 2000, DOI: 10.1590/S0366-69132000000400002
Abstract: the technological evolution of refractory castables generated novel materials associating high performance with distinct rheological behavior. nowadays, a large variety of castables are available, including pumpable, shotcreting, self-flowing and vibrated compositions. however, despite the high technology involved in these materials, their rheological characterization has been restricted to the limited measurement of flow value, which is unable to properly distinguish the different classes of castables. the present work presents the rheological characterization of a pumpable self-flow refractory castable carried out by a rheometer specially developed for this kind of material. the influence of the water content and cement hydration on castable rheology was evaluated as a function of time and shear history, in order to simulate pumping conditions. the results show the importance of the rheometer as a tool for the design and analysis of the rheological behavior of refractory castables.
第1页/共27条
每页显示


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