Submitted by Silvana Teresinha Dornelles Studzinski (sstudzinski) on 2016-05-02T17:58:26Z No. of bitstreams: 1 Deisi Luana Diel Weber_.pdf: 569327 bytes, checksum: 355337b56ffb691e0e6bd0005f05fc4d (MD5) / Made available in DSpace on 2016-05-02T17:58:26Z (GMT). No. of bitstreams: 1 Deisi Luana Diel Weber_.pdf: 569327 bytes, checksum: 355337b56ffb691e0e6bd0005f05fc4d (MD5) Previous issue date: 2015-12-10 / UNISINOS - Universidade do Vale do Rio dos Sinos / This research presents an investigation about the decision-making process regarding Make or Buy, trying to understand which variables most influence this decision to insource some activities, to outsource others, or to better estimate a percentage to combine both. The dependent variable on our research is the behavioral decision-making process, measuring the influence received by cost, quality, and monitoring. Trying to understand if differences between these independent variables influence how managers make their decision in the context of insource or outsource production. In order to test this model empirically, an experiment research was conducted, on the basis of eight different scenarios, which simulate a purchasing decision situation ranging the variables costs, quality, and monitoring of suppliers between High and Low, to understand the relationship of these constructs with the decision-making process of Brazilian managers. It was performed with a sample of 211 students from the Production Engineer course at Universidade do Rio dos Sinos (Unisinos). The data was analyzed using statistical technique ANOVA. The results demonstrate that managers consider cost variation to decide about how much to internalize and how much to outsource. They change their choices when quality is higher in their suppliers than inside the company. They also evaluate manager capability to control costs over their suppliers and on their process inside the company. However, they do not change their sourcing decision due to supplier’s monitoring variation, neither when quality monitoring is considered. This issue was already addressed in Hall’s study (2012) conducted in the United States. Thus, we decided to replicate his in Brazil in order to check if in a different environment, with other economic, politic, social, and regulatory situation, the manager will change their decisions. Nevertheless, after comparing both studies, we realize that the same hypothesis was supported in both studies, what means that even in another context the same variables are considered to base managers sourcing decision.

Made available in DSpace on 2016-04-27T16:57:04Z (GMT). No. of bitstreams: 1 Mitchell Christopher Sombra Evangelista.pdf: 3875607 bytes, checksum: 0ac2ae3a28c5c0d8e2bd66e9455ae4b2 (MD5) Previous issue date: 2011-04-27 / Secretaria da Educação do Estado de São Paulo / The research described here reports on a qualitative research had the purpose to enable high school students in a public school in the Metropolitan Region of São Paulo, implement and develop knowledge of mathematical object Isometric Transformations by Rotation, Translation and Reflection. Were used in this research, as motivating factors, the Ethnomatematics with Sona Geometry of African ethnic group called Cokwe and Dynamic Geometry using the software GeoGebra. The methodology, Design Experiment, enabled the improvement of a sequence of activities and created the final product of research. Levels of development psychogenetic Piaget and Garcia (1983), intrafigural, interfigural and transfigural possibility to observe the relationships between students identify geometric figures, their properties and structures. The development of this study revealed, made after the analysis of the protocols of the proposed activities, which supported the GeoGebra and Ethnomatematics favored the learning of Isometric Transformations / A pesquisa aqui descrita relata uma investigação de caráter qualitativo que teve como proposta possibilitar que alunos de Ensino Médio, de uma escola pública estadual da Região Metropolitana de São Paulo, aplicassem e desenvolvessem o conhecimento do objeto matemático Transformações Isométricas por meio da Rotação, Translação e Reflexão. Foram utilizados, nesta pesquisa, como elementos motivadores, a Etnomatemática com a Geometria Sona do grupo étnico africano chamado Cokwe e a Geometria Dinâmica com o uso do software GeoGebra. A metodologia utilizada, Design Experiment, possibilitou o aprimoramento de uma sequência de atividades e gerou o produto final da pesquisa. Os níveis de desenvolvimento psicogenéticos de Piaget e Garcia (1983), intrafigural, interfigural e transfigural possibilitaram verificar as relações que os alunos identificam entre as figuras geométricas, suas propriedades e estruturas. O desenvolvimento deste trabalho permitiu concluir, após as análises feitas dos protocolos das atividades propostas, que a Etnomatemática, com apoio do GeoGebra, favoreceu a aprendizagem das Transformações Isométricas

A relação entre preço e posicionamento de produto nas prateleiras de varejo ainda tem espaço para descobertas na literatura de marketing. O objetivo central dessa dissertação foi identificar o efeito do posicionamento de produtos levando em consideração o seu preço e a escolha do consumidor; mais especificamente o efeito positivo do posicionamento lógico de preços (i.e produtos posicionados do menor ao maior preço nas prateleiras) na escolha final, facilidade de escolha e número de unidades vendidas. Dois estudos foram feitos em busca de resultados, o primeiro sendo um experimento online, no qual escolha e facilidade de escolha foram estudadas a partir do posicionamento de preço. O segundo estudo foi um experimento de campo, no qual unidades vendidas foram verificadas através do posicionamento de preço. Os resultados encontrados em ambos os estudos indicam que o posicionamento de produtos a partir de uma ordem lógica de preço afeta a escolha do consumidor, embora não através da facilidade de escolha, e, mais ainda, afeta positivamente a quantidade de produtos vendidos. Contudo, verificou-se que o posicionamento a partir de preço não tem como consequência a facilidade de escolha. / The relationship between price and product positioning on retail shelves still has room for breakthroughs in marketing literature. The main goal of this dissertation was to identify the effect of product placement, taking into account its price, and consumer choice; more specifically, the positive effect of product placement by a logical positioning of prices (i.e. products positioned from the lowest to the highest price on the shelves) on the final choice, choice easiness and overall number of units sold. Two studies were conducted to search for these results, the first one as an online experiment, which studied choice and choice easiness from price positioning. In this first study was found that there is a positive relation between logical price arrangement (i.e. positioning products from the cheapest to the most expensive one) and consumer choice. However, price positioning does not significantly affect the ease of choice. The second study was a field experiment, in which the overall number of units sold was verified through price positioning. The results found in both studies indicate that the positioning of products from a logical price order affects consumer choice, though not through easiness of choice and, moreover, positively affects the quantity of products sold. Yet, it has been found that considering primily price to choose a shelf position does not have as consequence easiness of choice.

Process modeling is an indispensable task in the discipline of Business Process Management. The process models created in this task help its readers in to acquiring a higher comprehension of a process, allowing for the discovery of opportunities for its improvement. However, the comprehension of a process model is not guaranteed, as process modeling is a complex task that depends on the proficiency of the process modeler to avoid the creation of badly designed constructs. Process modeling guidelines are an essential tool in this regard, though they are dispersed across the many studies of the literature and not all of them have empirical evidence validating their effects. In addition to this problem, it is still an open questions if a set of process modeling guidelines makes the process modeling task more challenging and how effective modelers are in using them. It is also unclear how receptive process analysts are to the modeling guidelines. This dissertation presents a systematic literature review we conducted to collect and analyze the modeling guidelines found in the literature. It investigated a total of 520 articles, extracting a total of 45 modeling guidelines spread across 4 different categories. These 45 guidelines were simplified into a set of 20 guidelines, based on their significance to create more comprehensible process models and their practicality. This dissertation also presents the findings of an empirical experiment performed by 13 subjects that compared the results of two process modeling tasks with and without the support of the 20 modeling guidelines presented by the review, in which it was possible to observe that the subjects recognize the usefulness of the guidelines, but find them difficult to understand and use.

Traditional sketching with pen on paper can be seen as to visualize the memory. Limited to a framework of influences, experiences and ideas the outcome will result in something already known.In searching for knowledge an experimental sketch method counteracts this framework. The aim of this work is to explore morph animation of archetypical garments. Shape interpolation in Adobe Flash software makes it possible to calculate the way between two silhouettes. The result is a third silhouette, a morph of selected garments and depends on where the animation is paused. The work also deals with the gap between visualize(sketching) and making(construction/realization). In the investigation a new way of using animation as an sketch method have been found. Also how to use computer based 3D sketching in fashion design and an alternative construction method based on paper craft techniques have been developed. The collection consists of garments based on a morph between a classic skirt and a blazer to discuss new visions and possibility’s in fashion. Can the way we sketch, construct and produce affect garment definitions? And how could the findings in this work being used in a commercial industry. / Program: Modedesignutbildningen

Slaughterhouse waste (SB) has high potential to be utilized in anaerobic digestion due to its high protein and lipid content. However, these are also the limiting factors of system stability. Thus, co-digestion of slaughterhouse waste with other agro-industrial residues (manure (M), various crops (VC) and municipal solid waste (MSW)) was introduced in this study to overcome this problem. The main objective of the work was to determine the operating parameters and the methane yield in semi-continuous co-digestion of slaughterhouse waste with other agro-industrial waste streams. Four continuously stirring tank reactors (CSTRs) with different substrates and mixtures (SB, SB:M, SB:VC and SB:VC:MSW) were started up operating with hydraulic retention time (HRT) of 25 days in thermophilic conditions. The highest organic loading rates which could be achieved were 0.9 g VS/L·d in digestion of SB and 1.5 g VS/L·d for the co-digestion mixtures. In these cases, average methane yields of 300, 510, 587 and 426 ml/g VS were obtained from the digestion of SB, and the co-digestion of SB:M, SB:VC and SB:VC: MSW, respectively, with methane contents in the biogas of 60-85%. The highest average methane yield of 587 ml/g VS was found in co-digestion of SB:VC, which was in accordance with the value of 592 ml/g VS detected during the batch digestion of the same mixture. Moreover, batch assays with different substrates as well as 11 different mixtures of those were also set up to investigate the methane potential and the effect of second feeding. The results showed that the co-digestion of SB:VC, SB:VC:MSW and SB:M could provide high methane potentials, where the highest methane yields of 592, 522 and 521 ml/g VS, respectively were obtained. Moreover, increasing, similar or decreasing methane yields were determined from the second feeding depending on the substrates and substrate mixtures used. / Program: MSc in Resource Recovery - Sustainable Engineering

Nesta pesquisa, investigamos como alunos de ensino médio escrevem de forma argumentativa ao utilizarem dados empíricos de uma investigação experimental de biologia. Neste trabalho, entendemos a ciência como cultura e, inseridos numa perspectiva sócio-cultural do processo ensino-aprendizagem, abordamos a aprendizagem de ciências como enculturação. Neste processo, o ensino desenvolve múltiplas práticas em sala de aula introduzindo os alunos às regras, linguagem e processos da cultura científica. Fizemos uma revisão de como os diferentes processos da cultura científica se articulam numa atividade experimental para construir o conhecimento científico, com ênfase nas atividades de conhecimento biológico. Focalizamos especialmente alguns aspectos da linguagem científica, para, compreendendo a forma como eles se apresentam nas discussões e na produção de artigos, papers e relatórios produzidos pelos cientistas, podermos entender as possíveis aproximações com a educação científica, especificamente no aspecto da produção escrita escolar. Apresentamos o padrão de argumentação como ponto importante na linguagem científica, e fundamental no ensino de Ciências na abordagem de aprendizagem como enculturação. Nossa investigação pretende analisar a construção de uma escrita argumentativa, por alunos de ensino médio, a partir da utilização de dados empíricos em aulas experimentais de biologia, aproximando-se do que ocorre na produção científica com aspectos da biologia funcional. Nossa hipótese é que, em aulas de investigação aberta em biologia, a análise e a discussão dos dados empíricos obtidos pela atividade dos alunos promovem o desenvolvimento da escrita argumentativa. Para investigar esse processo, acompanhamos uma seqüência didática de um professor de biologia do primeiro ano do ensino médio, que propôs que seus alunos respondessem a uma questão-problema: Qual é a importância da luz no desenvolvimento de vegetais?. Durante três meses, gravamos em vídeo e em áudio toda a parte experimental realizada pelos alunos e discutimos o processo. Para responder nossa questão inicial sobre a argumentação escrita dos alunos, foram utilizados como dados potenciais, os relatórios escritos individualmente pelos estudantes (e entregues à professora no final da parte experimental), formando nossas unidades de análise. Com esses relatórios pudemos analisar os diferentes aspectos da linguagem científica, principalmente a escrita argumentativa, utilizando o padrão de Toulmin (1958(20061)), além de evidenciar o papel dos dados empíricos e dos conceitos biológicos na produção do aluno. Entendemos que, ao possibilitar que os alunos experimentem uma diversidade de situações de investigação de longo prazo no laboratório de biologia, e estimulando-os no contato com uma diversidade de dados empíricos, o professor aproxima-os das circunstâncias que ocorrem nas atividades características da cultura científica, estimulando-os na elaboração da argumentação escrita. / At this research, we investigated how high school students write on an argumentative basis as they make use of empirical data provided by experiments in biology. Here we mean science as a cultural concept and, from a sociocultural perspective of the teaching-learning process, regard the teaching of science as a kind of enculturation. As far as this enculturation is concerned, the teaching of science involves multiple practices in class so as students are introduced to the language, rules and process of the scientific culture. We underwent a revision of how some processes has been articulated in experimental activities aiming to build scientific knowledge, specially the biological one. The focus of our work is placed on some aspects of scientific language in order to understand, firstly, how they appear in scientific papers, and, secondly, what would be their contact with scientific education, mostly relating to school essays. We present the argumentation pattern as an important point with regard to scientific language and as an essential item concerning the teaching of science within the enculturation process. Our investigation intends to analyze the building of an argumentative write by high school students backed up with the use of empirical data obtained from experiments in biology classes, thus approaching their write of what occurs in the production of scientific texts. The hypothesis of this work is that, in classes of open biological investigation, the analyses and discussions of the empirical data obtained by students promote the development of argumentative write. To investigate this process, we followed a didactic sequence of a teacher of biology in charge of a high schools first grade class. The question proposed by the teacher was: What is the importance of light for the growing of plants? Over three months, we recorded on video and on audio the material related to all experiments, and went through a series of discussions on the matter. To answer our initial statement over students argumentative write, we made use of outputs such as potential data and pupils individual reports. In possession of this material, we were not only able to analyze the different aspects of the scientific language, specially the argumentative write, using as support the so-called Toulmins2 argumentation pattern, but also realize the role of the empirical data as well as the biological concepts in the production of each student. We have learnt that, by giving students the opportunity of facing a diversity of long experiments in the laboratory of biology, and encouraging them to come to know about a range of empirical data, the teacher brings them close to the circumstances that preside the activities regarding the scientific culture, giving also incentive so as they feel themselves entitle to produce an argumentative write.

A utilização de tecnologias da educação, não somente nos cursos à distância, mas também nos cursos presenciais, representa uma tentativa de contribuir para o processo de aprendizado, que tradicionalmente se desenvolve com as ações em sala de aula. O presente estudo teve como foco explorar o uso da tecnologia sob a perspectiva da Satisfação e Eficácia de Aprendizagem, da Percepção do estudante e do Desempenho. Foi realizado um experimento de campo em uma turma da disciplina Contabilidade Introdutória, do curso presencial de Ciências Contábeis de uma Universidade Pública Federal. A pesquisa foi conduzida a partir da divisão da turma em dois grupos (Tratamento e Controle), que foram invertidos de um bimestre para outro, com aproximadamente 30 estudantes em cada grupo. Esse número variou em função das desistências, e, de forma distinta do esperado, as notas dos dois grupos na avaliação inicial do experimento foram estatisticamente diferentes. As evidências apontam que isso, possivelmente, ocorreu devido a um efeito de composição: os grupos tinham características diferentes no que se refere à inserção no mercado de trabalho e ao fato de o estudante ter feito o curso técnico em Contabilidade. Para responder ao objetivo do estudo, que foi identificar o reflexo do uso de chat e fórum de discussão no processo de aprendizagem, partiu-se de um questionário inicial para identificar o perfil das turmas, e da aplicação de uma prova inicial em cada bimestre, para evidenciar o nível de conhecimento prévio que o grupo possuía sobre o tema de estudo daquele bimestre. Em cada bimestre foram realizados dois chats e um fórum de discussão no grupo de tratamento. Ao final de cada bimestre foi aplicado um questionário sobre Satisfação e Eficácia de Aprendizagem para os dois grupos, um questionário sobre Percepção dos estudantes sobre o uso da tecnologia, para os grupos de tratamento de cada bimestre, e, ao final, foi aplicada uma prova em cada bimestre para conhecer o desempenho dos estudantes na disciplina. Foram aplicados testes de médias para identificar se havia diferença entre o desempenho dos grupos, testes de correlação entre as intervenções nos chats e o desempenho dos estudantes, para verificar a interferência da participação no desempenho, e foi utilizada análise fatorial para explicar a interferência dos resultados obtidos nas questões relacionadas ao Technology Acceptance Model de Davis (1989) nos resultados do questionário de percepção sobre o uso da tecnologia. Concluiu-se que o reflexo do uso de chat e fórum de discussão é percebido no desempenho dos estudantes e na percepção da utilidade destas ferramentas no processo de aprendizagem. Além disso, notou-se que a idade é um fator que provoca reflexo nos resultados, visto que os mais jovens têm um desempenho melhor quando utilizam a tecnologia. Os resultados sugerem que a percepção dos estudantes sobre a utilidade da tecnologia no processo de aprendizagem é um fator que interfere nos efeitos de seu processo de aprendizagem, e que a satisfação em aprender não está totalmente relacionada à eficácia do processo de aprendizagem, principalmente quando este envolve o uso de tecnologias da educação. / The use of education technologies, not only in distance learning but also on-campus courses, is an attempt to contribute to the learning process traditionally developed through classroom actions. This study aimed to explore the use of technology from the perspective of Satisfaction and Learning Effectiveness, Student Perception, and Performance. A field experiment was conducted in an Introductory Accounting class of an undergraduate on-campus Accounting course at a Federal Public University. The research was conducted by dividing the class into two groups (treatment and control), each with approximately 30 students. The groups were reversed from one two-month period to another. The number of students varied depending on dropouts, and, different to what was expected, the grades of the two groups in the initial evaluation of the experiment were statistically different. Evidence suggests that this was probably due to a composition effect: the groups had different attributes with respect to inclusion in the labor market and/or the fact that the student had already completed a technical degree in Accounting. In order to achieve the purpose of the study, which was to identify the effects of the use of chat and a discussion forum in the learning process, an initial questionnaire was used to identify the groups\' profile. As well, an initial test was applied in each two-month period to reveal the groups\' previous level of knowledge on the topics of that period. In each two-month period, there were two chats and a discussion forum in the treatment group. At the end of each period a questionnaire on Satisfaction and Learning Effectiveness was applied to both groups, as well as a questionnaire on the students\' perception of the use of technology to the treatment group of each two-month period, and finally a test to measure the students\' achievement in the subject. Mean tests were applied to identify whether there were differences between the performance of groups, and correlation tests were applied between the students\' contributions in chat rooms and performance, to check the influence of participation in their performance. The factor analysis was also used in order to explain the interference of the results obtained in the questions related to the Technology Acceptance Model by Davis (1989) in the questionnaire results about perception of the use of technology. This study concluded that the effects of the use of chat and discussion forums are perceived in the students\' performance and in their perception of the usefulness of these tools in the learning process. Moreover, it was noted that age is a factor that causes an effect on the results, since younger students had better performance when using technology. The results suggest that the students\' perception of the usefulness of technology on the learning process is a factor that interferes with the effects of their learning process, and that satisfaction in learning is not totally related to the effectiveness of the learning process, especially when it involves the use of education technologies

O objeto desta dissertação é a estrutura de preferência do consumidor (EPC). O objetivo geral é estudar os métodos de mensuração da EPC (MMEPC) e o tema é a mensuração desta estrutura, utilizando a técnica estatística Conjoint Analysis (CA). A CA proporciona uma maneira realista de medir o impacto de cada atributo de um produto na preferência do consumidor. Esta técnica estatística tem sido cada vez mais aplicada em problemas de Marketing. Alguns softwares têm surgido e provocado o aumento de uso desta técnica. A dissertação discute uma aplicação real desta técnica num problema de definição de um tecido de linho ótimo para um conjunto de especialistas. A ênfase está no planejamento do experimento fatorial fracionário para a estimação do modelo individual cuja variável resposta é posto e os atributos são qualitativos. Modelos lineares de célula de referência e de desvios foram construídos para a análise do experimento. Utilizou-se o modelo linear aditivo não-saturado. Alguns dos principais softwares foram analisados: SPSS, SAS, ACA, CBC e CVA. O autor define um projeto de software de planejamento de experimentos fatoriais fracionários ótimos segundo a eficiência-D. O estudo dos MMEPC pode proporcionar as seguintes contribuições à Administração: otimização de projetos de produtos/serviços/conceitos, quantificação da EPC, segmentação de mercado, determinação da probabilidade de escolha ou participação esperada do mercado de produtos/serviços/conceitos num determinado cenário e simulação (predição) de preferências individuais e agregadas. / The purpose of this dissertation is the consumer’s preference structure (CPS). The general objective is to study the methods of mensurement of CPS (MMCPS) and its main purpose is to measure that structure using the statistical technique Conjoint Analysis (CA). The CA provides a realistic way to measure the impact of the attribute of a product on the consumer’s preference. This statistical technique is being used more and more in marketing problems. Some softwares have emerged and increased the use of this technique. This dissertation discusses a real application of this technique on the problem of definition of a linen tissue for a specialist group. The emphasis is on the design of a fractional factorial experiment for estimation of a individual model in wich the response variable is rank and the attributes are qualitative. Linear models of a cell of reference and deviations were constructed for the experimental analysis. Used one a non satureded linear model. Some of the main softwares were analysed: SPSS, SAS, ACA, CBC and CVA. The author defines a software project for optimum fractional factorial experimental design and analysis, according to D-efficiency. MMCPS studies can provide the following contribution to Management: products/services/concepts optimization, CPS quantification, marketing segmentation, choice probability determination on the expected participation of the products/services/concepts market in a particular scenario and the simulation (prediction) of individual and aggregate preferences.

The perception of the expression of traditional handcrafts needs to be challenged. Therefore his bachelor degree work aims to develop new expressions in contemporary men`s wear through experimentations with tubular braiding. This works aims to utilize and express a progressive approach of the technique in terms of materials and method with the desire to create a contemporary expression when a handcraft method is utilized in fashion Starting to explore the handcraft technique braiding the tubular braiding technique was found. While the technique itself is similar in expression and properties to flat braiding the tubular braiding opens up for other possibilities for garment construction. Using the tubular braid as a starting point, the aim is to explore new ways of constructing contemporary menswear garments with the technique itself as well to construct new materials and find to a new expressions. The work also deals with the gap between the technique flat braiding, tubular braiding, construction and materials with different properties altering the initial expression of the technique. By experimenting with unconventional materials and scale for such an handcraft technique as braiding the expression and the traditional view of braiding and its construction and use will be altered and questioned - discovering that the tubular braid has possibilities to construct or sculpt garments on the body in a seamless manner. Hopefully machine-engineers of the future can invent new and progressive braiding processes to create fabrics for commercial application in fashion and also understand the potential of the tubular braiding method formed by the examples here. / <p>Program: Modedesignutbildningen</p>