Submitted by Jaqueline Silva (jtas29@gmail.com) on 2014-09-30T20:52:20Z No. of bitstreams: 2 dissertação - Júnio César Mendes Simão - 2013.pdf: 1594402 bytes, checksum: fada126ea8a1b1a7b56dfeab5037ff06 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Approved for entry into archive by Jaqueline Silva (jtas29@gmail.com) on 2014-09-30T21:42:39Z (GMT) No. of bitstreams: 2 dissertação - Júnio César Mendes Simão - 2013.pdf: 1594402 bytes, checksum: fada126ea8a1b1a7b56dfeab5037ff06 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Made available in DSpace on 2014-09-30T21:42:39Z (GMT). No. of bitstreams: 2 dissertação - Júnio César Mendes Simão - 2013.pdf: 1594402 bytes, checksum: fada126ea8a1b1a7b56dfeab5037ff06 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Previous issue date: 2013-03-01 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / This paper deals with the learning of some content from Financial Mathematics using the HP-12C calculator, to prepare citizens for both managing its own nances and for the labor market. The matter will be addressed through practical applications in a pleasant and e ective, with the intention to make students able to resolve nancial situations that present themselves in a critical way, not being carried away by misleading proposals. At the end we present some practical applications where advertisements will be analyzed. / Este trabalho trata da aprendizagem de alguns conteúdos de Matemática Financeira com a utilização da calculadora HP-12C, de modo a preparar cidadãos tanto para administração das suas próprias nanças quanto para o mercado de trabalho. O assunto será tratado através de aplicações práticas de um modo agradável e e caz, com a intenção de tornar os alunos aptos a resolver situações nanceiras que se apresentam de modo crítico, não sendo levados por propostas enganosas. Ao nal iremos apresentar algumas aplicações práticas onde anúncios publicitários serão analisados.

Made available in DSpace on 2016-04-27T16:58:57Z (GMT). No. of bitstreams: 1 Leandro Nhoncance.pdf: 1122912 bytes, checksum: 1f1ae715e54b357ac747e3a2fecf691b (MD5) Previous issue date: 2009-10-05 / The theme of this research arose during observations made in the classroom, and also after attending classes in TIC ( Information and Communication Technology) in the course for Professional Master s Degree at the Pontifícia Universidade Católica if São Paulo. The aim of the work is to relate mathematics classes with the technology presente in the daily lives of our students. It proposes a sequence of activities which would help and lead tothe pupils obtaining the natural rest of an inexact division with the calculator. The euclidian division is a procedure that makes it easier for pupils to find the natural rest working with the calculator of their mobile phones. In this research we performed a study with a group of fifteen pupils in the senior high school of a state school. We worked with diagnosis an intervention. The data collected were analyzed in the light of some presppositions of Didactic Engineering, and while the activities were being carried out, we realized that the difficulties of some students in regard to the operation of division, especially and to obtain the natural rest, appeared when they had to work with the calculator with natural numbers. However, these difficulties were decreased with the sequence of activities proposed. This work contributed to the students learning and showed that the calculator is a worthy ally in the educational process in addition to recovering some concepts about division of natural numbers. It taught the pupils to work with the calculator in the universe of natural numbers and to obtain the rest in an operation of inexact division / A proposta desta pesquisa surgiu durante várias observações feitas em sala de aula e; também, após cursar a disciplina de TIC (Tecnologia da Informação e Comunicação) no curso de Mestrado Profissional da Pontifícia Universidade Católica de São Paulo. Este trabalho visou a interagir as aulas de Matemática com a tecnologia presente no cotidiano de nossos alunos. Propôs uma seqüência de atividades que levasse e auxiliasse os alunos a obterem o resto natural em uma divisão inexata com a calculadora. A divisão euclidiana foi um procedimento que facilitou encontrarem o resto natural, trabalhando com a calculadora do celular. Nesta pesquisa, realizou-se um estudo com um grupo de 15 alunos da 3ª série do Ensino Médio de uma escola pública estadual. Trabalhou-se de uma maneira diagnóstica e interventiva. Os dados coletados foram analisados sob alguns pressupostos da Engenharia Didática, e durante a realização das atividades, verificou-se que as dificuldades de alguns alunos em relação à operação da divisão, principalmente na obtenção do resto natural, surgiram quando os alunos tiveram que trabalhar com a calculadora no universo dos números naturais. Porém foram minimizadas com a seqüência de atividades propostas. Este trabalho contribuiu com a aprendizagem dos alunos, mostrou que a calculadora é uma forte aliada no processo educativo, além de ter recuperado alguns conceitos sobre divisão de números naturais. Ensinou aos alunos trabalharem com a calculadora no universo dos números naturais na obtenção do resto, em uma operação de divisão inexata

Despite New Zealand receiving the number one ranking for ease of doing business in a major international comparative survey of compliance requirements, SME owners continue to rate compliance as a significant concern. This research project set out to investigate why this was so. The qualitative research undertaken for this thesis involved case study interviews with six SME owners. A resource-based approach was taken, looking at the resources SME owners needed to address the compliance task, and how they sourced and applied these. The scope of the study extended beyond the confines of the workplace to encompass the impact of compliance on the personal lives of SME owners and their families. Firkin’s model of entrepreneurial capital was applied and extended. Accordingly, the study encompassed an examination of economic, human, social, cultural and personal capital. An original concept, temporal capital, was developed to address the application of ‘potentially productive time’ as a resource. The findings are applied to a discussion of the Quality Regulation Review currently underway in New Zealand. It is recommended that SME issues could be more comprehensively addressed by incorporating screens within the Business Cost Calculator that estimate the relative psychic and opportunity costs associated with proposed regulations. A gender analysis of the compliance task was also undertaken. This revealed that the impact of compliance measures may be disproportionately borne by those whose business and personal lives are intertwined, primarily women. The invisibility of these workers has contributed to their needs being inadequately addressed by traditional processes of consultation and data analysis. The thesis concludes that it is not the regulatory regime alone that determines ease of doing business. It is the match between the requirements of the regime and the compliance-related entrepreneurial capital accessible to those subject to it. Recommendations relate therefore, to improving both the institutional capital of the regulator and the compliance-related entrepreneurial capital accessible to the SME.

<p>SammanfattningSkolverket beslutade 2006 att tillåta symbolhanterande räknare på nationella prov i matematik för alla gymnasieelever från höstterminen 2007. Beslutet debatterades flitigt t.ex. i tidskriften <em>Nämnaren</em>.</p><p>Prototypen till en ny symbolhanterande räknare testades i sju ’pilotklasser’ vid fyra svenska gymnasieskolor från december 2006. Jag har följt två av dessa klasser t.o.m. höstterminen 2007 då de använde den färdiga räknaren TI-Nspire CAS.</p><p>Syftet med denna pilotstudie är att ta reda på hur den nya symbolhanterande räknaren fungerar i matematikundervisningen i de två pilotklasserna på gymnasiets NV-program, främst ur elevernas perspektiv, men också ur lärarnas.</p><p>Tanken är att pröva olika metoder, som kan användas i en större undersökning.</p><p>Bakgrunden ger bl.a. en översikt av de handburna räknehjälpmedlens historia och en kortfattad historik över elektroniska hjälpmedel i den svenska skolan. Tidigare forskning tar upp miniräknaren i skolan och då främst grafräknaren.</p><p>Observationsmetoderna är miniräknardagböcker, diagnostiska test, elev- och lärarenkät. Jag jämför också klassernas kursbetyg och klassificerar ett antal matematikuppgifter m.a.p. möjlig användning av CAS.</p><p>Resultatet gav en mångfacetterad bild med både positiva och negativa sidor. Skolorna behöver ta ställning till vilka klasser som ska använda symbolhanterande räknare och erbjuda lärarna fortbildning. Det behövs metodutveckling, nya läromedel och en reformerad lärarutbildning för att fullt kunna dra nytta av den nya teknikens möjligheter.</p><p>Jag lämnar flera förslag på fortsatt forskning.</p> / kontakt: david_u_strom@hotmail.com

SammanfattningSkolverket beslutade 2006 att tillåta symbolhanterande räknare på nationella prov i matematik för alla gymnasieelever från höstterminen 2007. Beslutet debatterades flitigt t.ex. i tidskriften Nämnaren. Prototypen till en ny symbolhanterande räknare testades i sju ’pilotklasser’ vid fyra svenska gymnasieskolor från december 2006. Jag har följt två av dessa klasser t.o.m. höstterminen 2007 då de använde den färdiga räknaren TI-Nspire CAS. Syftet med denna pilotstudie är att ta reda på hur den nya symbolhanterande räknaren fungerar i matematikundervisningen i de två pilotklasserna på gymnasiets NV-program, främst ur elevernas perspektiv, men också ur lärarnas. Tanken är att pröva olika metoder, som kan användas i en större undersökning. Bakgrunden ger bl.a. en översikt av de handburna räknehjälpmedlens historia och en kortfattad historik över elektroniska hjälpmedel i den svenska skolan. Tidigare forskning tar upp miniräknaren i skolan och då främst grafräknaren. Observationsmetoderna är miniräknardagböcker, diagnostiska test, elev- och lärarenkät. Jag jämför också klassernas kursbetyg och klassificerar ett antal matematikuppgifter m.a.p. möjlig användning av CAS. Resultatet gav en mångfacetterad bild med både positiva och negativa sidor. Skolorna behöver ta ställning till vilka klasser som ska använda symbolhanterande räknare och erbjuda lärarna fortbildning. Det behövs metodutveckling, nya läromedel och en reformerad lärarutbildning för att fullt kunna dra nytta av den nya teknikens möjligheter. Jag lämnar flera förslag på fortsatt forskning. / kontakt: david_u_strom@hotmail.com

Type 1 diabetes (T1D) is an auto-immune disease characterized by insulin-deficiency. Insulin is a metabolic hormone that is involved in lowering blood glucose (BG) levels in order to control BG level to a tight range. In T1D this glycemic control is lost, causing chronic hyperglycemia (excess glucose in blood stream). Chronic hyperglycemia damages vital tissues. Therefore, glycemic control must be restored. A common therapy for restoring glycemic control is intensive insulin therapy, where the missing insulin is replaced with regular insulin injections. When dosing this compensatory insulin many factors that affect glucose metabolism must be considered. Linkura is a company that has developed tools for monitoring the most important factors, which are meals and exercise. In the Linkura meal and exercise tools, the nutrition content in meals and the calorie consumption during exercise are estimated. Another tool designed to aid control of BG is the bolus calculator. Bolus calculators use input of BG level, carbohydrate intake, and insulin history to estimate insulin need. The accuracy of these insulin bolus calculations suffer from two problems. First, errors occur when users inaccurately estimate the carbohydrate content in meals. Second, exercise is not included in bolus calculations. To reduce these problems, it was suggested that the Linkura web tools could be utilized in combination with a bolus calculator. For this purpose, a bolus calculator was developed. The bolus calculator was based on existing models that utilize clinical parameters to relate changes in BG levels to meals, insulin, and exercise stimulations. The bolus calculator was evaluated using data collected from Linkura's web tools. The collected data showed some inconsistencies which cannot be explained by any model.  The performance of the bolus calculator in predicting BG levels using general equations to derive the clinical parameters was inadequate. Performance was increased by adopting an update-algorithm where the clinical parameters were updated daily using previous data. Still, better model performance is prefered for use in a bolus calculator.   The results show potential in developing bolus calculator tools combined with the Linkura tools. For such bolus calculator, further evaluation on modeling long-term exercise and additional safety features minimizing risk of hypoglycemia are required.

Made available in DSpace on 2016-06-02T20:02:51Z (GMT). No. of bitstreams: 1 4860.pdf: 5242866 bytes, checksum: 5e92d592a327abbd0f89da2dbf416582 (MD5) Previous issue date: 2012-03-26 / The difficulty of students in learning concepts of mathematics especially at high schools is current problem in Brazilian schools. This difficulty is a challenge even bigger as the different high school systems are considered, for example, the technical professional high schools. Such challenge for two classrooms of first grade (10th grade in K-12) of a technical course in environmental studies motivated the proposal of this dissertation. The research work explored a teaching methodology of the concept of function that would show to the student the importance of this concept in a technical course, while offering an opportunity to know about the mathematics modeling that uses functions, especially those from school curriculum. The final results of this dissertation consisted of working sheets that were planned, executed and evaluated in two classrooms. The worksheets are formatted so that they can be used by teachers who share the same challenge and interest in developing research to improve the teaching/learning mathematics at high - school level. The proposed activities are based on mathematics modeling of problems in the context of the students course, and on the educational use of a graphic calculator to construct tables, graphs and regression curves. The official documents from Ministry of Education (MEC) about curriculum standards and some theoretical references have been used for our reflections about the differences between traditional teaching style and new educational trends, and about the potential of technology to improve the learning. The work presents also a study of the concept of function that supported the planning of the proposed classroom activities. / A dificuldade de aprender conceitos matemáticos principalmente no ensino médio é um problema presente nas escolas brasileiras. Esta dificuldade se apresenta como um desafio maior quando se consideram as diferentes categorias de ensino em nível médio, por exemplo, uma escola técnica profissionalizante. A proposta deste trabalho foi motivada por este desafio para duas turmas do primeiro ano do curso técnico de meio ambiente. A pesquisa deste trabalho consistiu na exploração de uma metodologia de ensino do conceito de função que mostre ao aluno a importância deste conteúdo num curso técnico, oferecendo uma oportunidade de adquirir conhecimento sobre a modelagem matemática de problemas por meio de funções, em especial das funções constantes no currículo escolar. O trabalho apresenta como resultado final as atividades propostas e testadas nas duas turmas, em formato que possam ser utilizadas e aproveitadas por professores que tenham o mesmo desafio e interesse na pesquisa da melhoria de ensino/aprendizagem em nível de ensino médio. As atividades elaboradas se baseiam na metodologia de modelagem matemática aplicada dentro da resolução de problemas contextualizados e no uso auxiliar da calculadora gráfica para construir tabelas, gráficos e expressões por métodos de regressão. O trabalho apresenta um embasamento teórico para a pesquisa realizada, primeiro por meio de documentos oficiais do Ministério da Educação (MEC) que determinam os parâmetros para os conteúdos do currículo escolar, além de bibliografia que permitiu tecer reflexões sobre as diferenças entre o ensino tradicional e tendências modernas, o potencial da tecnologia como auxiliar para melhorar o aprendizado. O trabalho apresenta também um estudo teórico do conteúdo de funções, necessário para fundamentar as atividades de sala de aula realizadas.

Thesis (MTech(Design))--Cape Peninsula University of Technology, 2012 / To design from a human perspective rather than from existing technological opportunities, and involving multiple stakeholders with their different perspectives, is an important aspect of participatory design and user-centered design. This thesis project was an explorative study done on a wine estate, in the Western Cape, South Africa, to find novel ICT solutions, for supporting co-operation and planning between multiple and individual work tasks in the work practice. This research explored potentials to manage multiple stakeholders and use their different perspectives to inform design research. The thesis project shows the ethnographic research gathered through video shadowing, workshop results involving the users to contribute to the development of the design by acting with a projection, leading up to a design opening and further focused on the concept development with the stakeholders.The thesis proposes a simulated concept namely the Visual Calculator (VC). This system is designed to involve several participators within a work practice. It supports calculation activities for spraying and buying chemicals. It saves the user time by incorporating standard calculations to output needed information faster. It supports planning, management and record keeping aspects of the farm manager’s work practice in the vineyard spraying process. Although the concept was more fully developed for the farm manager, the VC involves two other work roles including the owner and foreman. The concept focuses on a human centered perspective, instead of making the system fully automated, giving users control and not controlling the users. For this to be successful work should be divided and have equal responsibilities, each stakeholder can contribute and value their part of the work, knowing where it fits in, why it is important and how it influences other aspects of the work practice. The research outcome involves, envisioning the future potentials of the design (VC), design for participation, a way to identify design openings, problem solving and conceptualizing by utilizing user’s strengths.

Orientador: Luiz César Martini / Dissertação (mestrado) Universidade Estadual de Campinas, Faculdade de Egenharia Elétrica e de Computação / Made available in DSpace on 2018-08-16T11:03:53Z (GMT). No. of bitstreams: 1 PradaSanmiguel_JulianMauricio_M.pdf: 2046023 bytes, checksum: 428745119cf4df222965e308409fc621 (MD5) Previous issue date: 2010 / Resumo: A falta de recursos computacionais com aplicativos matemáticos voltados para deficientes visuais e outros tem impedido que os deficientes estudem e desenvolvam trabalhos nas áreas das ciências exatas. Este tema de tese visa basicamente ao desenvolvimento de uma calculadora científica programável que é ativada no próprio editor de textos de um programa gratuito conhecido por DOSVOX, disponível especificamente para uso dos portadores de necessidades especiais. A calculadora foi desenvolvida de tal forma que permite ao usuário criar algoritmos e cálculos matemáticos desde o editor de textos (EDIVOX), o qual permite aproveitar os recursos de sínteses de fala com os que este conta, o que a sua vez facilita enormemente o processo de criação, manipulação e execução destes / Abstract: The lack of computational resources with mathematical applications designed for the visually impaired and others has prevented them to study and develop work in the fields of exact sciences. This thesis topic points essentially to the development of a scientific programmable calculator which is activated from the text editor of a free program known as DOSVOX available specifically for use by persons with special needs. The calculator was developed in a way that allows users to create algorithms and mathematical calculations from a text editor (EDIVOX), which allows the calculator using speech synthesis resources it possesses, which in turn greatly facilitates the process creation, manipulation and implementation of these / Mestrado / Telematica / Mestre em Engenharia Elétrica

This paper shows the results of a research whose objective was to investigate how the mathematic teachers of the Statewide Network in Aracaju use the computer and calculator to approach mathematical contents. Thus initially, fourteen public schools of the state were selected, located in five geographic areas of Aracaju which have computer labs installed by ProInfo National Program of Educational Technology. From each of these schools were selected two mathematic teachers, one from elementary school and another from high school to be interviewed. Theoretical contributions of authors were adopted like Fedalto (2006), Carneiro (2008), Borba and Hairstyle (2010) and Canavarro (1993) to analyze the types of uses that teachers make of the calculator and the computer, D´Ambrosio (1989) to identify possibilities on "how" to teach Mathematics, and Lorenzato and Fiorentini (2006) for the understanding about Mathematic Education. Based on twenty-seven semistructured interviews and on the readings made it is possible to say that most teachers use the computer and calculator to teach mathematical contents, and these instruments are predominantly used as resources. Since computer use occurs in two forms, only by the teacher to expose some content or, by him and by students when after approaching the contents softwares are used to prove the theory. The main reason for this usage is due to the understanding that the computer is a tool for motivation. While the calculator is used mostly as a tool to perform calculations in order to expedite the resolution of accounts, check results, perform complex calculations accurately and less frequently it is used as a research tool. / Neste trabalho é apresentado o resultado de uma pesquisa cujo objetivo foi investigar se e como os professores de Matemática da rede estadual de Aracaju utilizam o computador e a calculadora para abordar conteúdos matemáticos. Para isso, inicialmente foram selecionadas catorze escolas públicas da rede estadual localizadas nas cinco zonas geográficas de Aracaju e que possuem laboratórios de informática instalados pelo ProInfo- Programa Nacional de Tecnologia Educacional. De cada umas dessas escolas foram entrevistados dois professores de Matemática, um do ensino fundamental e outro do ensino médio. Como aporte teórico foram adotados autores como Fedalto (2006), Carneiro (2008), Borba e Penteado (2010) e Canavarro (1993) para analisar os tipos de usos que os professores fazem da calculadora e do computador, D?Ambrósio (1989) para identificar possibilidades de como ensinar Matemática e Fiorentini e Lorenzato (2006) para o entendimento sobre Educação Matemática. Com base nas vinte e sete entrevistas semiestruturadas e na apropriação das leituras efetuadas é possível afirmar que a maioria dos professores utiliza o computador e a calculadora para abordar conteúdos matemáticos, sendo que esses instrumentos são utilizados predominantemente como recursos. Uma vez que o uso do computador ocorre de duas formas, somente pelo professor para expor algum conteúdo, ou, por ele e pelos alunos quando depois de abordado o conteúdo são usados softwares para comprovar a teoria. A principal justificativa para essa forma de uso é por entender que o computador é um instrumento de motivação. Já a calculadora é utilizada na maioria das vezes como instrumento para efetuar cálculos, de forma a agilizar a resolução das contas, conferir resultados, realizar cálculos complexos com precisão e menos frequentemente é usado como instrumento de investigação.