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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
441

Análise custo-utilidade do tratamento de pacientes da rede primária de saúde de Presidente Prudente-SP / Cost-utility analysis of the treatment of patients of the primary health network of Presidente Prudente-SP

Queiroz, Dayane Cristina [UNESP] 23 March 2018 (has links)
Submitted by Dayane Cristina Queiroz (dayanecristina_45@yahoo.com.br) on 2018-04-26T13:57:31Z No. of bitstreams: 1 Dissertação Final - Dayane Cristina Queiroz.pdf: 1409189 bytes, checksum: 3169693862475b542779a92e70841858 (MD5) / Approved for entry into archive by Claudia Adriana Spindola null (claudia@fct.unesp.br) on 2018-04-26T14:09:43Z (GMT) No. of bitstreams: 1 queiroz_dc_me_prud.pdf: 1409189 bytes, checksum: 3169693862475b542779a92e70841858 (MD5) / Made available in DSpace on 2018-04-26T14:09:43Z (GMT). No. of bitstreams: 1 queiroz_dc_me_prud.pdf: 1409189 bytes, checksum: 3169693862475b542779a92e70841858 (MD5) Previous issue date: 2018-03-23 / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / O alto índice de doenças crônicas têm se associado diretamente com elevados custos relacionados à saúde, influenciando diretamente na diminuição da qualidade de vida. Entretanto, estudos brasileiros que avaliam custo-utilidade através de medidas de qualidade de vida e recursos gastos com saúde, ainda são escassos na literatura. Dessa forma, o objetivo do estudo foi avaliar a razão custo-utilidade do tratamento de pacientes da rede primária de saúde de Presidente Prudente/SP. A amostra foi composta por 292 pacientes, de ambos os sexos, com idade igual ou superior a 50 anos. Os pacientes foram avaliados quanto: i) qualidade de vida; ii) QALY; iii) custos com saúde; iv) nível de atividade física; e v) uso de medicamentos. Para análise estatística, foram usados valores de média, desvio padrão, mediana, diferença entre quartil e valores percentuais para estatística descritiva, teste t para amostras independentes, correlação de Pearson para variáveis numéricas e o teste de qui-quadrado para variáveis categóricas. Para o custo-utilidade dos tratamentos, foram utilizados valores de QALY e o custo médio/ano para cada tratamento. A significância estatística (p-valor) foi pré-fixada em valores inferiores a 5%. O software utilizado foi o BioEstat (versão 5.0). Houve correlação negativa entre o domínio atividade física no lazer e locomoção com consultas e custos adicionais (pvalor<0,05), medicamentos e custos totais (p-valor<0,01), e atividade física habitual com consultas, custos adicionais e custos totais (p-valor<0,01). Consultas, custos adicionais, medicamentos e custo total foram maiores em pacientes que reportaram maior número de doenças (p-valor=0,001). O custo-utilidade do tratamento dos pacientes da atenção primária foi maior no grupo tratamento medicamentoso, seguida do grupo medicamentoso atrelada ao exercício físico que se apresentou custo-efetivo com média de QALY alto. Maiores escores de QV foi observado em homens quando comparados mulheres. Entretanto, variáveis como peso, IMC e presença de hipertensão arterial se associaram com menores escores para QV. Além disso, dados quanto internações e cirurgias foram analisados impactando a QV dos avaliados e por fim custos associados aos serviços de saúde também apresentaram relação com a QV. / The high index of chronic diseases has been directly associated with high costs related to health, directly influencing the reduction of quality of life. However, Brazilian studies that evaluate cost-utility through measures of quality of life and resources spent on health are still scarce in the literature. Thus, the objective of the study was to evaluate the cost-utility ratio of the treatment of patients in the primary health network of Presidente Prudente/SP. The sample consisted of 292 patients, of both sexes, aged 50 years or more. Patients were assessed for: i) quality of life; ii) QALY; iii) health costs; iv) level of physical activity; and v) use of medications. For statistical analysis, mean values, standard deviation, median, difference between quartile and percentage values were used for descriptive statistics, t-test for independent samples, Pearson's correlation for numerical variables and the chisquare test for categorical variables. For the cost-utility of the treatments, values of QALY and the mean cost / year for each treatment were used. Statistical significance (p-value) was set at values below 5%. The software used was BioEstat (version 5.0). There was a negative correlation between the physical activity domain in leisure and locomotion with additional consultations and costs (p-value <0.05), medication and total costs (p-value <0.01), and habitual physical activity with consultations, additional costs and total costs (p-value <0.01). Consultations, additional costs, medications and total cost were higher in patients who reported higher number of diseases (pvalue = 0.001). The cost-utility of the treatment of primary care patients was higher in the drug treatment group, followed by the drug group linked to physical exercise that was cost-effective with a high QALY mean. Higher QOL scores were observed in males when compared to females. However, variables such as weight, BMI and presence of arterial hypertension were associated with lower QOL scores. In addition, data regarding hospitalizations and surgeries were analyzed impacting the QoL of the evaluated patients and, finally, costs associated with health services were also related to QoL. / FAPESP: 2016/12071-8
442

Design and development of a smart inverter system

Adekola, Olawale Ibrahim January 2015 (has links)
Thesis (MTech (Electrical, Electronic and Computer Engineering))--Cape Peninsula University of Technology, 2015. / The growing interest in the use of solar energy to mitigate climate change, reduction in the cost of PV system and other favourable factors have increased the penetration of the PV(Photovoltaic) systems in the market and increase in the worldwide energy supply. The main component in a DG is a smart inverter connected in a grid-tied mode which serves as a direct interface between the grid and the RES (Renewable Energy System). This research work presents a three phase grid-tied inverter with active and reactive power control capabilities for renewable energy sources (RES) and distributed generators (DG). The type of the inverter to be designed is a Voltage Source Inverter (VSI). The VSI is capable of supplying energy to the utility grid with a well regulated DC link at its input. The solution this project proposes is an implementation of the designed filter to effectively reduce the harmonics injected into the grid to an acceptable value according to standards and also an approach to control the real and reactive power output of the inverters to help solve the problems of instability and power quality of the distribution system. The design, modelling and simulation of the smart inverter system is performed in MATLAB/SIMULINK software environment. A 10 kW three-phase voltage source inverter system connected to the utility grid was considered for this research. Series of simulations for the grid-connected inverter (GCI) model was carried out using different step changes in active and reactive power references which was used to obtain the tracking response of the set power references. The effectiveness of the control system which was designed to track the set references and supply improved power quality with reduced current ripples has been verified from the simulation results obtained.
443

Modelando preferências dependentes de contexto : a importância da moralidade no ato da escolha

Godoy, Daniel Voigt January 2016 (has links)
O presente trabalho desenvolve um modelo capaz de descrever preferências dependentes de contexto, buscando superar as limitações impostas pela abordagem da preferência revelada. O espaço informacional no ato da escolha é ampliado através da incorporação de uma segunda dimensão, na forma de um novo tipo de utilidade, dita social ou moral, representativa do contexto no qual a escolha é realizada. As dimensões são assumidas incomensuráveis entre si, uma característica típica de escolhas que envolvem questões morais. A impossibilidade de comparação entre duas alternativas, cada qual superior à outra em uma dimensão distinta, é resolvida através de uma simetria rotacional capaz de preservar a relação sujacente entre ambas utilidades. O modelo é baseado, fundamentalmente, nos trabalhos de Amartya Sen (1974, 1977, 1993, 1997) e Amitai Etzioni (1986), incorporando conceitos de utilidade moral (ETZIONI, 1986), dependência de contexto no ato da escolha (SEN, 1993, 1997), inescapabilidade ou urgência da escolha (SEN, 1997), auto-imposição de limites à escolha (SEN, 1997; ETZIONI, 1986), commitment, entendido como divisão entre escolha e bem-estar (SEN, 1977) e flexibilidade cognitiva dos indivíduos (ARIELY, 2012). / In this work, we develop a model that is able to describe context-dependent preferences, trying to overcome the limitations given by the revealed preference approach. The informational space in the act of choice is broadened by incorporating a second dimension, as a new type of utility, called social or moral, representing the context within the choice is made. The dimensions are deemed incommensurable, a typical characteristic of moral-related choices. The impossibility of comparison between two alternatives, where each alternative is the superior one in a different dimension, is resolved through a rotational symmetry able to preserve the underlying relationship between the two utilities. The model is fundamentally based on the works of Amartya Sen (1974, 1977, 1993, 1997) and Amitai Etzioni (1986), making use of the concepts of moral utility (ETZIONI, 1986), context-dependency in the act of choice (SEN, 1993, 1997), inescapability or urgency of the choice (SEN, 1997), self-imposing limits to choice (SEN, 1997; ETZIONI, 1986), commitment, understood as a wedge between choice and welfare (SEN, 1977) and the cognitive flexibility of the individuals (ARIELY, 2012).
444

Liberdade e utilidade : as razões do mercado na obra de Ludwig von Mises

Araújo, Sandro Alves de January 2017 (has links)
O mercado é um sistema de cooperação social baseado em transações voluntárias, este sistema abrange uma estrutura institucional (propriedade, contrato, Estado), uma dimensão epistêmica (cálculo econômico, preço e valor) e um complexo motivacional (lucro, auto-interesse, diminuição do desconforto). O mercado, portanto, é um dos temas centrais na obra de Ludwig von Mises. A partir deste pressuposto, o problema de pesquisa é: quais são os fatores que fundamentam o mercado em Ludwig von Mises? Incidindo sobre estas dimensões do mercado temos a influência da liberdade e/ou da utilidade na sua formação. Assim, pretende-se saber se o mercado tem sua fundamentação na liberdade, pois é, segundo Ludwig von Mises, o lugar onde o indivíduo é livre para escolher; ou na utilidade, pois propicia a melhor forma conhecida de organização social com os melhores benefícios possíveis. A conclusão é a de que, tanto o conceito de liberdade, quanto o de utilidade são necessários para a construção do conceito de mercado na sua teoria. Foi utilizado o método sistemático de análise conceitual. / The market is a system of social cooperation in voluntary transactions, this system covers an institutional structure, an epistemic dimension (economic calculation, price and value) and a motivational complex (profit, self-interest, decrease in discomfort). The market, therefore, is one of the central themes in the work of Ludwig von Mises. From this assumption, the research problem is: what are the factors that underpin the market in Ludwig von Mises? Focusing on these dimensions of the market has an influence of freedom and / or utility in their training. Thus, knowing whether the market has its foundation in freedom, for it is, according to Ludwig von Mises, the place where the individual is free to choose; Or utility, because it provides a better known form of social organization with the best possible resources. The conclusion is that both the concept of freedom and utility are necessary for the construction of the concept of the market in its theory. The systematic method of conceptual analysis was used.
445

Le service public hospitalier / The public hospital utility

Pécoul, Annabelle 12 December 2016 (has links)
Le service public hospitalier a été institué par la loi du 31 décembre 1970 qui en donne une définition fonctionnelle. Bien que le législateur promeuve un modèle hospitalo-centré, il n’exclut pas les établissements privés associés au service public hospitalier par le biais de modalités de participation qui les défavorisent. Affaibli par les réformes hospitalières successives, le service public hospitalier va s’atrophier jusqu’à la réforme du 21 juillet 2009 qui supprime la notion pour lui substituer celle de missions de service public. Cette conception fonctionnelle est conforme à la théorie du service public et compatible avec la définition du service d’intérêt général défendue par le droit de l’Union européenne, mais elle est en décalage avec les faits. À la définition fonctionnelle théorique défendue par le législateur depuis 1970, se substitue, en pratique, une conception organique résultant de modalités de mise en œuvre du service public hospitalier nettement favorables au secteur public. En effet, les établissements publics de santé bénéficient d’un statut singulier caractérisant leur prépondérance. La loi du 26 janvier 2016 confirme la prégnance de la conception organique en réhabilitant la notion de service public hospitalier, et en maintenant les établissements du secteur public dans leur rôle d’acteurs naturels de ce service public. Des interrogations demeurent, toutefois, concernant la pérennité du système de santé. Celui-ci doit céder la place à un service public de santé, intégrant le service public hospitalier, susceptible de chapeauter l’action de l’ensemble des protagonistes de la santé et de garantir le déroulement d’un parcours de santé accessible, égalitaire et qualitatif. / The public hospital utility has been established by the law of December, 31st, 1970, which gives a functional definition. Although the legislator promotes a hospital-centered model, it doesn’t exclude the private establishments associated to the public hospital utility by means of methods of participation which penalize it. Weakened by successive hospital reforms, the public hospital utility will atrophy until the reform of July, 21st, 2009 which deletes the notion and substitutes it by the concept of public service missions. This functional conception is in accordance with the service public theory and compatible with the definition of general interest service defended by the European Union law, but isn’t in keeping with facts. The theoretical functional definition supported by the lawmaker is replaced, in practice, by an organic conception resulting from details of implementation of public hospital utility decidedly favorable to sector public. Indeed, public health establishments benefit from a singular status characterizing its predominance. The law of January, 26, 2016 confirms the resonance of the organic conception by rehabilitating the notion of public hospital utility, and by maintaining public sector institutions in its role of natural actors of this public utility. Questions remain, nonetheless, concerning the durability of the health system. It must step back for a public health service, integrating the public hospital utility, able to head the action of all health protagonists and to guarantee the progress of an accessible, egalitarian and qualitative fitness trail.
446

What is Relevant Mathematics? An exploration of two perspectives on relevant mathematics in the high school classroom

January 2012 (has links)
abstract: Recently there has been an increase in the number of people calling for the incorporation of relevant mathematics in the mathematics classroom. Unfortunately, various researchers define the term relevant mathematics differently, establishing several ideas of how relevancy can be incorporated into the classroom. The differences between mathematics education researchers' definitions of relevant and the way they believe relevant math should be implemented in the classroom, leads one to conclude that a similarly varied set of perspectives probably exists between teachers and students as well. The purpose of this exploratory study focuses on how the student and teacher perspectives on relevant mathematics in the classroom converge or diverge. Specifically, do teachers and students see the same lessons, materials, content, and approach as relevant? A survey was conducted with mathematics teachers at a suburban high school and their algebra 1 and geometry students to provide a general idea of their views on relevant mathematics. An analysis of the findings revealed three major differences: the discrepancy between frequency ratings of teachers and students, the differences between how teachers and students defined the term relevance and how the students' highest rated definitions were the least accounted for among the teacher generated questions, and finally the impact of differing attitudes towards mathematics on students' feelings towards its relevance. / Dissertation/Thesis / M.A. Curriculum and Instruction 2012
447

Humains, bovins et prairies naturelles : une histoire commune de réciprocité et d'échange marchand / Humans, cattle and natural grasslands : a common history of reciprocity and market exchange

Torres Alvarez, Maria de 29 May 2017 (has links)
Le projet de recherche entend contribuer a la compréhension des transformations de l’élevage en Uruguay à partir de l’analyse anthropologique et microsociologique des relations humains-écosystème-animaux et des différents types de connaissances associés aux modèles de développement proposés par les politiques publiques depuis le XX siècle. L’hypothèse centrale part de l’existence d’au moins trois types d’élevage qui cohabitent actuellement, mais qui ont été différenciés dans le temps (spéciation), et se caractérisent par des modalités spécifiques de relations avec l’animal et l’écosystème s’appuyant sur des registres de connaissances différenciés. Mon hypothèse soutient que le processus actuel d’intensification tend à substituer les pratiques et relations de réciprocité par des relations d’échange mercantile qui augmentent la vulnérabilité du système de production comme des socio écosystème, en s’appuyant sur des critères technologiques distants de l’expérience concrète et du savoir-faire local en matière d’élevage. Le projet propose une ethnographie de ces relations homme-écosystème-animal et de leur transformation sur trois types de territoire d’élevage d’Uruguay et dans deux institutions du pouvoir exécutifs qui conduisent la fabrication des politiques publiques d’élevage. Ceux-ci sont : une zone protégé (parc national) á l’est de Uruguay; une région au nord de caractère traditionnel ; une région Centre-Sud où il coexiste agriculture et élevage ; finalement, deux agences techniques les conseillers politiques publiques sur le bien-être animal et la conservation des prairies naturelles. / The PhD project will contribute to the understanding of livestock transformations in Uruguay from the anthropological and the micro-ecosystem analysis of human-animal relationships and different types of knowledge associated with development models proposed by public policies. Different types of farming in Uruguay currently coexist and are characterized by specific rules of relationships with animals and the ecosystem based on differentiated knowledge registers. The research hypothesis argues that the intensification process tends to substitute practices and reciprocal relationships through mercantile exchange relationships that increase the vulnerability of the farming system as socio-ecosystems, based on criteria remote technology from the practical experience and local knowledge. The project proposes an ethnography of human-animal-ecosystem relationships and their transformation in the north part of Uruguay and two institutions from the executive that direct public livestock policy.
448

Algoritmos de escalonamento baseados em serviÃos pÃblicos para aumentar a satisfaÃÃo do usuÃrio em sistemas OFDM / Utility-based scheduling algorithms to enhance user satisfaction in OFDMA systems

Francisco Hugo Costa Neto 25 February 2016 (has links)
CoordenaÃÃo de AperfeiÃoamento de NÃvel Superior / A crescente demanda de mercado por serviÃos sem fio e a escassez de recursos de rÃdio apela mais do que nunca para a melhoria do desempenho dos sistema de comunicaÃÃo sem fio. Desse modo, à obrigatÃrio garantir o provimento de melhores serviÃos de rÃdio e aperfeiÃoar a cobertura e a capacidade, com isso aumentando o nÃmero de consumidores satisfeitos. Esta dissertaÃÃo lida com algoritmos de escalonamento, buscando a maximizaÃÃo e o controle adaptativo do Ãndice de satisfaÃÃo no enlace direto de uma rede de acesso baseado em frequÃncia, OFDMA (do inglÃs Orthogonal Frequency Division Multiple Acess , considerando diferentes modelos de trÃfego para serviÃos de tempo nÃo real, NRT (do inglÃs Non-Real Time ), e de tempo real, RT (do inglÃs Real Time ); e condiÃÃes de canal mais realistas, por exemplo, CSI imperfeitas. Com o intuito de resolver o problema de maximizaÃÃo de satisfaÃÃo com menor complexidade, uma abordagem com otimizaÃÃo de mÃltiplas camadas usa a teoria da utilidade para formular o problema como uma maximizaÃÃo de soma de taxa ponderada. Este estudo à focado no desenvolvimento de um framework baseado em utilidade empregando a funÃÃo log-logÃstica deslocada, que devido Ãs suas caracterÃsticas permite novas estratÃgias de escalonamento de priorizaÃÃo baseada em QoS e oportunismo de canal, para uma alocaÃÃo de potÃncia igualitÃria entre os recursos de frequÃncia. Visando a maximizaÃÃo da satisfaÃÃo de usuÃrios de serviÃos NRT e RT, dois algoritmos de escalonamento sÃo propostos: MTSM e MDSM, respectivamente. A modificaÃÃo dos parÃmetros da funÃÃo de utilidade log-logÃstica descolocada permite a implementaÃÃo de diferentes estratÃgias de distribuiÃÃo de recursos. Buscando controlar os nÃveis de satisfaÃÃo dos usuÃrios de serviÃos NRT, dois algoritmos adaptativos de escalonamento sÃo propostos: ATES e ASC. O algoritmo ATES realiza um controle da satisfaÃÃo mÃdia pela mudanÃa dinÃmica do parÃmetro de escala, permitindo uma estratÃgia estÃvel para lidar com o dilema entre satisfaÃÃo e capacidade. O algoritmo ASC à capaz de garantir uma variaÃÃo dinÃmica do parÃmetro de formato, garantindo um controle rigoroso dos nÃveis de satisfaÃÃo dos usuÃrios. SimulaÃÃes no nÃvel do sistema indicam o cumprimento do objetivo de desenvolvimento de algoritmos de escalonamento eficientes e de baixa complexidade capazes de maximizar e controlar os Ãndices de satisfaÃÃo. Estas estratÃgias podem ser Ãteis para o operador da rede, que se torna capaz de projetar e operar a rede de acordo com um perfil de satisfaÃÃo de usuÃrio. / The increasing market demand for wireless services and the scarcity of radio resources calls more than ever for the enhancement of the performance of wireless communication systems. Nowadays, it is mandatory to ensure the provision of better radio services and to improve coverage and capacity, thereby increasing the number of satisfied subscribers. This thesis deals with scheduling algorithms aiming at the maximization and adaptive control of the satisfaction index in the downlink of an Orthogonal Frequency Division Multiple Access (OFDMA) network, considering different types of traffic models of Non-Real Time (NRT) and Real Time (RT) services; and more realistic channel conditions, e.g., imperfect Channel State Information (CSI). In order to solve the problem of maximizing the satisfaction with affordable complexity, a cross layer optimization approach uses the utility theory to formulate the problem as a weighted sum rate maximization. This study is focused on the development of an utility-based framework employing the shifted log-logistic function, which due to its characteristics allows novel scheduling strategies of Quality of Service (QoS)-based prioritization and channel opportunism, for an equal power allocationn among frequency resources. Aiming at the maximization of the satisfaction of users of NRT and RT services, two scheduling algorithms are proposed: Modified Throughput-based Satisfaction Maximization (MTSM) and Modified Delay-based Satisfaction Maximization (MDSM), respectively. The modification of parameters of the shifted log-logistic utility function enables different strategies of distribution of resources. Seeking to track satisfaction levels of users of NRT services, two adaptive scheduling algorithms are proposed: Adaptive Throughput-based Efficiency-Satisfaction Trade-Off (ATES) and Adaptive Satisfaction Control (ASC). The ATES algorithm performs an average satisfaction control by adaptively changing the scale parameter, using a feedback control loop that tracks the overall satisfaction of the users and keep it around the desired target value, enabling a stable strategy to deal with the trade-off between satisfaction and capacity. The ASC algorithm is able to ensure a dynamic variation of the shape parameter, guaranteeing a strict control of the user satisfaction levels. System level simulations indicate the accomplishment of the objective of development of efficient and low complexity scheduling algorithms able to maximize and control the satisfaction indexes. These strategies can be useful to the network operator who is able to design and operate the network according to a planned user satisfaction profile.
449

Influência dos tipos de processo de colheita manual na qualidade de alface / Influence of crop manual procedures on lettuce quality abstract

Oliveira, Denize Cristine Rodrigues de 20 August 2018 (has links)
Orientadores: Paulo Ademar Martins Leal, Sylvio Luís Honório / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agrícola / Made available in DSpace on 2018-08-20T12:03:10Z (GMT). No. of bitstreams: 1 Oliveira_DenizeCristineRodriguesde_M.pdf: 1514216 bytes, checksum: 5b23bd3986cd65f29487a7dbef3936db (MD5) Previous issue date: 2012 / Resumo: Devido a uma tendência da população mundial em adquirir hábitos de vida mais saudáveis, cresce o consumo de hortaliças folhosas a cada ano, juntamente com a exigência da população pela qualidade total e segurança do alimento. Lactuca sativa L. (Asteraceae) é considerada a mais importante das hortaliças no grupo das folhosas, sendo também a mais produzida e mais consumida no Brasil. Um dos entraves é a alta perecibilidade do produto, ocorrendo perdas ao longo de toda cadeia produtiva. O objetivo principal deste trabalho foi estudar a influência de sistemas de colheita diferenciada em quatro tipos de alface (Repolhuda Americana 'Graciosa', Solta Crespa 'Vanda', Solta Lisa 'Marcela' e Solta Crespa 'Lavínia'), visando a melhor forma de manutenção da qualidade. Foram estudados os sistemas de colheita diferenciada com raiz e com corte que minimizem o dano por corte, denominados de corte 1 e 2, realizados na transição caule raiz, e entre o início da zona radicular e a primeira inserção de folha, comparado com o processo de colheita convencional. A qualidade do produto foi determinada por análises físico-químicas e sensoriais. A interpretação dos resultados foi realizada por análise de variância e teste de Tukey a 95% de confiabilidade, além de análise de componentes principais. Concluiu-se que para todas as características avaliadas houve degradação da qualidade ao longo do período de armazenamento. Para a alface 'Graciosa' o sistema de colheita realizado pelo tratamento corte 1 (transição caule raiz) não é recomendado, sendo os demais iguais para manutenção da qualidade. Já para a alface 'Vanda' recomenda-se os sistemas corte do produtor e corte 1, pois obtiveram uma degradação lenta dos parâmetros físico-químicos. Para a alface 'Marcela' recomenda-se o sistema de colheita representado pelos tratamentos com raiz e corte 2 (entre o início da zona radicular e a primeira inserção de folha). Para a alface 'Lavínia', recomenda-se o sistema de colheita representado pelos tratamentos com raiz e corte do produtor.Houve redução da qualidade das plantas de alface do 1° ao 5° dia de armazenamento, sendo que no 6° dia apenas a alface 'Lavínia' no tratamento com raiz e corte 2 foram consideradas aceitáveis No 9° dia de armazenamento todas as amostras foram consideradas impróprias para o consumo / Abstract: Leafy vegetables consumption increases every year due to a tendency of the world's population in acquiring a healthier lifestyle. Lactuca sativa L. (Asteraceae) is considered the most importantin the group of leafy vegetables. It is almost exclusively used, in natura, as a fresh vegetable. Lettuce (Lactuca sativa L.) is the leafy vegetable most widely produced and consumed in Brazil, main production areas are concentrated in green belts next to big consumercenters, to avoid losses caused to its perishability. In addition, is also increased every year the demand of the population for total quality and safety of the food. This project aims to integrate the stages of harvesting of four different types (Repolhuda Americana 'Graciosa', SoltaCrespa 'Vanda', Solta Lisa 'Marcela' e SoltaCrespa 'Lavínia'), suggesting that the procedures for collection, be carried out with minimum handling, least loss of mass and exuberance; keeping the quality and extending the shelf-life, respecting the legal standards of use. Differentiated harvest was studied, with root and cutting that minimize the damage and mass loss, when compared to traditional harvesting procedures. The product's quality were determined by physical-chemical and sensorial analyses. Interpretation of the results was performed by analysis of variance and Tukey test at 95% reliability, as well as principal component analysis, with the aid of programsAssistat version 7.6 beta (SILVA, 2011) and R version 2.14.1 (R, 2011). It was found that for all attributes, quality degradation has occurred during the storage period. For 'Graciosa' lettuce, the worst harvest system studied was the cutting 1. As for the 'Vanda' lettuce, the best cuts were the producer cut and cutting 1, since it had a slow degradation of the physical chemical parameters. For the 'Marcela' lettuce, the producer treatment showed the worst results. Finally for 'Lavínia' lettuce, the best harvesting system was represented by the treatments with root and producer cutting. Results of sensorial analysisindicated that from the sixth storage day lettuce plants were considered unacceptable in respect to its acquisition, except for the 'Lavínia' lettuce with root treatment and cut 2, which reach the same situationonly in the ninth day / Mestrado / Tecnologia Pós-Colheita / Mestre em Engenharia Agrícola
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[en] INFORMATION DESIGN IN SITUATIONS OF PUBLIC INTEREST / [pt] DESIGN DA INFORMAÇÃO DE SITUAÇÕES DE UTILIDADE PÚBLICA

BIANCA MARIA REGO MARTINS 09 October 2007 (has links)
[pt] A pesquisa dedica-se ao estudo do processo de desenvolvimento de projetos no campo do Design da informação, que têm como propósito trabalhar situações de interesse público - educação, saúde pública, segurança, entre outros. Tem por objetivo compreender como diferentes setores da sociedade desenvolvem projetos desta natureza, investigando os propósitos, a metodologia aplicada, o processo de desenvolvimento, a implementação e a avaliação dos trabalhos realizados. Reúne entrevistas com designers que utilizam os enfoques metodológicos do Design em Parceria e a Pesquisa-ação. Apresenta contextualização histórica, fundamentação teórica e informações sobre diferentes setores da sociedade, tais como instituições públicas, privadas, acadêmicas e ONGs, onde existem equipes que desenvolvem projetos na área do Design da informação para situações de interesse público. É utilizada uma análise de conteúdo para a interpretação dos achados da pesquisa. Apresenta o estudo de um processo de desenvolvimento de material didático para a alfabetização bilíngüe de crianças surdas em LIBRAS e Português escrito, o que possibilitou a imersão no tema central da dissertação. / [en] The research is dedicated to the study of development process of projects in the Information Design area, whose objective is to handle situations of public interest - education, public health, security, among others. Its objective is to understand how different sectors of society develop projects of this nature, investigating the purposes, the applied methodology, the development process, the implementation and the evaluation of works performed. It includes interviews with designers that use methodologies that have methodological focus on Design in Partnership and the Research-action. It provides the historical background, theoretical grounding and information about the different sectors of society, such as public, private, academic institutions and NOGs, where there are teams that develop projects in the Information Design area for situations of public interest. It is used an analysis of content to interpret the results of the research. It presents the study of a development process of didactic material for the bilingual alphabetization of deaf children in LIBRAS and written Portuguese, what allowed the immersion in the central theme of the written essay.

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