O uso intensivo do solo e descarte incorreto e descontrolado de substâncias tóxicas no solo em decorrência do aumento das atividades agrícolas e industriais pode promover o acúmulo de elementos potencialmente tóxicos (EPTs). Isto ocorre, principalmente, nas camadas superficiais do solo, o que favorece a absorção dos EPTs pelas plantas e pode trazer riscos inaceitáveis à saúde humana, principalmente pela ingestão de alimentos contaminados. No Brasil existem poucos estudos relacionados à acumulação e à forma em que estes elementos estão presentes na solução do solo e podem ser absorvidos por plantas do tipo olerícolas, sendo que várias espécies são consumidas cruas pela população. Dessa forma, há exposição indireta desses elementos via ingestão dos vegetais. Uma das formas de estimar a acumulação do metal nas plantas é por meio do Fator de Bioconcentração (BCF), que é a razão entre a concentração total do EPT no vegetal e no solo. Os objetivos nesse estudo foram: (i) comparar resultados dos teores pseudototais de EPTs de solos e teores totais de plantas encontrados em referências bibliográficas provenientes de regiões tropicais úmidas e de regiões temperadas; (ii) calcular as concentrações críticas de Cu, Ni, Pb e Zn em cenários de exposição urbano e rural, por meio de dois modelos matemáticos para avaliação de risco à saúde humana: Planilha CETESB e CSOIL; (iii) avaliar as frações reativa, disponível e bioacessível de Ba, Cr, Cu, Ni, Pb e Zn em solos; e (iv) estimar os teores dos elementos presentes nas frações por funções empíricas a partir dos teores pseudototais e das propriedades física e químicas do solo. Foram levadas em consideração frações dos vegetais consumidos das áreas contaminadas: 10% para o cenário urbano e 25% para o cenário rural. O BCF foi o principal parâmetro avaliado no cálculo da concentração crítica dos EPTs, sendo que o ideal seria a obtenção de um BCF para cada situação/região, considerando principalmente os atributos físicos e químicos do solo, e tipo e espécie de vegetais cultivados para calcular as concentrações críticas baseada no risco à saúde humana. Os modelos empíricos foram capazes de predizer a relação entre as frações reativa e pseudototal desses elementos em função das propriedades dos solos e do seu teor pseudototal. Na fração disponível, 3% e 1% do teor de Ba e Zn, respectivamente, estavam disponíveis na solução do solo em relação aos teores pseudototais, o que sugere baixo potencial de mobilidade destes elementos no solo. O Ba apresentou grande solubilidade em ambientes ácidos, como o baixo pH encontrado no estômago de seres humanos. / The intensive land use and uncontrolled disposal of toxic substances in the soil due to the increase of agricultural and industrial activities can promote the accumulation of potentially toxic elements (PTEs) mainly in the upper soil layers, which favors the uptake by plants and can pose unacceptable risks to humans health, mainly by intake of contaminated food. In Brazil, there are few studies regarding the accumulation and the species in which these elements are present in the soil solution and can be absorbed by several vegetable crops eaten raw by the population, i.e., there is an indirect exposure by ingestion of vegetables. The Bioconcentration Factor (BCF) is the ratio of the total concentration of PTE in plant and soil. BCF is used to estimate the metal accumulation in plants. This study was carried out taking the following objectives into account: (i) the comparison of results obtained in bibliographic references from humid tropics and temperate regions; (ii) to calculate the critical concentrations of Cu, Ni, Pb and Zn for both urban and rural scenarios of exposure, using both mathematical models for assessment risk to human health: CETESB and CSOIL spreadsheets; (iii) to evaluate the reactive, available and bioaccessible fractions of Ba, Cr, Cu, Ni, Pb and Zn in soils cultivated with vegetable crops in Sao Paulo states, Brazil; and (iv) to estimate the PTEs contents in the fractions by empiric functions from pseudototals concentrations and soil physical and chemical properties. The following fractions of vegetables consumed in contaminated areas have taken into account: 10% for the urban scenario and 25% for the rural scenario. The BCF was the main parameter evaluated in the calculation of the critical concentration of EPTs. For calculating the critical concentrations based on risk to human health, it is suggested that the BCF should be determined for each state/region, mainly considering the physical and chemical soil properties, and the type and species of plants. The empirical models were able to predict the relationship between the reactive and the pseudototal fractions of the PTEs, and this fraction depended on the soil properties and on their pseudototal contents. In the available fraction, 3% and 1 % of Ba and Zn contents, respectively, were available in the soil solution in relation to pseudototal levels, suggesting the poor potential for the mobility of these elements in the soil. Moreover, Ba (bioaccessible fraction) had great solubility in acidic environments, such as the low pH found in the stomach.

Submitted by Daniella Santos (daniella.santos@ufma.br) on 2017-10-17T13:51:42Z No. of bitstreams: 1 ErnandeMarques.pdf: 8075757 bytes, checksum: f0a34a0e482bb2f1721f4656cc4d01dd (MD5) / Made available in DSpace on 2017-10-17T13:51:42Z (GMT). No. of bitstreams: 1 ErnandeMarques.pdf: 8075757 bytes, checksum: f0a34a0e482bb2f1721f4656cc4d01dd (MD5) Previous issue date: 2016-07-28 / The Financial Mathematics has a role of great importance for high school students, it is in this stage of life that many of these students enter the labor market and start using cash more often. However, it is clear that more contextualized intervention is necessary on this topic so that these students can take ownership of them. Given the above, the proposed contents in this research include the study of amount, interest, fees, inancing, loans and applications so that students can become familiar with these issues of financial mathematics and use them when needed, in their day to day. In order to enhance scientific knowledge and to provide basis to students in their academic careers, does not open up hand to show and use the formulas and relevant equations Financial Mathematics, becoming the LibrOffice Calc spreadsheet just a tool or means that facilitates, but does not replace the mathematical deductions. Therefore, the aim is always the development of skills relacionas reflection and criticism, in the examples of each topic, so that students are able to make informed decisions and responsible to situations which are required the use of Financial Mathematics. / A Matemática Financeira tem um papel de grande relevância para os alunos do Ensino Médio, pois é nesta etapa da vida que muitos desses alunos ingressam no mercado de trabalho e começam a utilizar o dinheiro com mais frequência. No entanto, percebe-se que é necessário uma intervenção mais contextualiza desses conteúdos para que esses alunos consigam se apropriar deles. Diante do exposto, os conteúdos propostos, nesta pesquisa, contemplam o estudo sobre montante, juros, taxas, financiamentos, empréstimos e aplicações, para que os alunos possam se familiarizar com estes assuntos de Matemática Financeira e utilizá-los, quando for necessário, em seu dia a dia. Com o intuito de reforçar o conhecimento científico e de oferecer base aos estudantes em suas trajetórias acadêmicas, não abre-se mão de mostrar e usar as fórmulas e equações pertinentes a Matemática Financeira, fazendo-se da planilha Calc do LibrOffice apenas uma ferramenta ou um meio que facilita, mas n~ao substitui as deduções matemática. Por isso, busca-se sempre o desenvolvimento de competências relacionas a reflexão e a critica, nos exemplos de cada tópico, para que os alunos sejam capazes de tomar decisões conscientes e responsáveis diante de situações nas quais sejam exigidas o uso da Matemática Financeira.

The business environment nowadays becomes much more dynamically and tensely than the past driven by the trend of globalization and free trading. Therefore, any enterprise in the world has to face competition from everywhere in the world. Under such complicated business environment, it¡¦s dangerous to make decision based on past experience or instinct. If some key message is missed or not collected, a disaster caused by logical decision, but far away from the reality might just happen. In last couple decades, software providers launched DSS(Decision Support System), BI(Business Intelligence), ¡K, etc. based on current enterprise IT infrastructure like ERP (Enterprise Resource Planning), MRPII(Manufacturing Resource Planning), ¡K, etc. to help enterprise for decision making. However, such systems are not popular in Taiwan, not to mention the successful stories. While I studied the lesson ¡§information technology and competitive advantage¡¨ conducted by Profession Kuo, I concluded from classmates¡¦ discussion that the root causes were as follows. 1. Most Taiwan manufacturers¡¦ strategy is to launch product at lower cost to allow them to win business via price war. Therefore, they are willing to invest tangible hardware, not intangible software. 2. The branches of international companies can¡¦t develop their own information system due to Corporate policy or security concern. Based on above mentioned, I started thinking if we could have a BI system that doesn¡¦t need to spend money, is easy to implement, and no need for Corporate approval. Such BI system could help management to retrieve effective and enough information for precise decision making. After evaluation, I think Microsoft Excel spreadsheet software is the most suitable solution. It¡¦s because almost all enterprises have it, it can contain 1M units of data in a file, and useful tools of macro, pivot table, sorting, filtering, VBA(Visual Basic for Application). Furthermore, the nature of spreadsheet is similar to database structure, so it can be easily integrated with database like SQL database, Microsoft Access. Thanks to Profession Kuo¡¦s coaching, I started doing research, and studied necessary tool like VBA, ¡K, etc. to warm up for this thesis. After months, I finally finish it, and I hope it can contribute to the ones that have similar problem with me.

The aim of my thesis is to create a teaching material which will introduce the secondary school students to the issue of getting and processing information and data, as well as their consequent practical usage. My thesis has the form of an analysis of the subject matter, includes a suggestion and possible application of the teaching material with the focus on maximum usage of pupil?s individual work, research methods and project teaching. This teaching material will be aimed at pupils between 12 and 16 years of age and it can be used during optional lessons or in various IT hobby clubs for teenagers.

Made available in DSpace on 2014-06-11T19:32:43Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-01-29Bitstream added on 2014-06-13T21:04:39Z : No. of bitstreams: 1 araujo_hb_dr_botfca.pdf: 2541334 bytes, checksum: d55a8caaf451d8351aa515e352354320 (MD5) / Universidade Estadual Paulista (UNESP) / A análise de um modelo econômico que permita visualizar alternativas econômicas que sejam satisfatórias e compensadoras do ponto de vista do investidor para a produção de madeira de Eucalyptus spp, permitiria avaliar a implementação de reflorestamentos com altos ganhos em produtividade e com retorno econômico plausível à proposição da introdução tecnológica. Neste sentindo, objetiva-se neste trabalho a construção de um modelo econômico que possa avaliar as receitas e despesas associadas a um projeto comercial de produção de eucalipto fertirrigado implantado no município de Dois Irmãos do Buriti – MS, bem como uma simulação que defina os cenários mais adequados à implantação desta introdução tecnológica em futuros projetos. Um modelo econômico foi desenvolvido utilizando-se a planilha eletrônica de cálculos Microsoft Office Excel contendo variáveis de entrada que permitem a inserção dos dados que definem o cenário estudado, além de permitir a variação destas mesmas premissas entre um intervalo consistente, processando estas informações na ótica do projeto e culminando com as respostas que quantificam receitas e despesas no horizonte econômico do projeto. Por meio do fluxo de caixa gerado por estas receitas e despesas foi possível o cálculo de índices econômicos que permitiram a análise econômica dos cenários propostos em situação de sequeiro e fertirrigado com áreas respectivas de 855 e 500ha respectivamente. Nas condições em que os sistemas foram montados na Empresa MMX Metálicos Corumbá Ltda, o sistema de sequeiro apresentou um VPL de R$ 4.994.275,11 e uma TIR de 11,44% para um horizonte de planejamento de 25 anos, com custo da madeira de R$ 20,47 por m3, enquanto o cenário fertirrigado apresentou um VPL de R$ 388.106,48 , uma TIR de 8,26% e um custo da madeira de R$ 28,77 por m3 nas... / The analysis of an economic model that helps illustrate alternatives that are satisfying and rewarding from the standpoint of the investor for the production of Eucalyptus spp, would assess the implementation of reforestation with high productivity gains and economic profits to the plausible proposition introduction of technology. In this sense, the purpose of this work was to build an economic model that can evaluate the revenue and expenses related to a project's commercial production of eucalyptus fertigated deployed in the city of Dois Irmãos do Buriti - MS, as well as a simulation to define the scenarios more suitable for the deployment of this introduction of technology in future projects. An economic model was developed using the spreadsheet calculations of Microsoft Office Excel containing input variables that allow the insertion of data defining the scenario studied, besides allowing the variation among these same assumpts a consistent range, processing this information in perspective project and culminating with the responses that quantify revenue and expenditure in the economic horizon of the project. Through cash flow generated by this revenue and expenditure could be calculated based on economic indices which enabled the economic analysis of proposed scenarios in a situation of dry land and fertilized with the respective areas of 855 and 500ha respectively. Under conditions in which the systems were installed in the Company Metallic MMX Corumbá Ltda, the system presented a dryland NPV of R$ 4,994,275.11 and an IRR of 11.44% for a planning horizon of 25 years, at a cost of wood R$ 20.47 per m3, while the fertilized scenario presented a NPV of R$ 388,106.48, an IRR of 8.26% and a cost of wood from R$ 28.77 per m3 in the same conditions, demonstrating that both can be considered economically feasible. However the upland condition... (Complete abstract click electronic access below)

Business Intelligence is becoming more and more an essential element for a company’s planning, development and consistency. A company usually aims to predict and optimize the outcome of different decisions. In order to do that, it requires a tool that can perform scenario analysis or “what if” – analysis. These analyses can be performed with spreadsheets and today with the tools within business analysis being web-based, the purpose of the project is to combine a web-based spreadsheet with an analysis from a BI server. The BI server provides sample data. Should a combination be possible then a continuing goal would be to connect the BI server with a database and in that way provide the spreadsheet with data to perform “what if” – analysis. The results indicated that a combination between the web-based spreadsheet and the BI server was possible. However, a few alterations of the spreadsheet are still necessary in order for the combination to work as desired. Further developments of the product involve managing to adapt it to smartphones and tablets.

Submitted by Liliane Ferreira (ljuvencia30@gmail.com) on 2018-06-29T11:48:03Z No. of bitstreams: 2 Dissertação - Kleber Duarte de Moraes - 2018.pdf: 5266704 bytes, checksum: b1a97f1306aca08de9eb1bd8b97ea9dc (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2018-06-29T11:54:29Z (GMT) No. of bitstreams: 2 Dissertação - Kleber Duarte de Moraes - 2018.pdf: 5266704 bytes, checksum: b1a97f1306aca08de9eb1bd8b97ea9dc (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2018-06-29T11:54:29Z (GMT). No. of bitstreams: 2 Dissertação - Kleber Duarte de Moraes - 2018.pdf: 5266704 bytes, checksum: b1a97f1306aca08de9eb1bd8b97ea9dc (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2018-04-23 / Analyze the hypothesis that the use of the spreadsheet aiding the teaching of the content of statistics, for students of the third grade of high school, favors the meaningful learning of Ausubel. / Analisar a hipótese de que o uso da planilha eletrônica auxiliando o ensino do conteúdo de estatística, para alunos da 3ª série do ensino médio, favorece a aprendizagem significativa de Ausubel.

Submitted by Renata Lopes (renatasil82@gmail.com) on 2016-02-19T16:07:51Z No. of bitstreams: 1 josimarmoreirarocha.pdf: 2068448 bytes, checksum: 720b45220091d2a8fe3fb2740d4b4cf9 (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2016-02-26T13:50:01Z (GMT) No. of bitstreams: 1 josimarmoreirarocha.pdf: 2068448 bytes, checksum: 720b45220091d2a8fe3fb2740d4b4cf9 (MD5) / Made available in DSpace on 2016-02-26T13:50:01Z (GMT). No. of bitstreams: 1 josimarmoreirarocha.pdf: 2068448 bytes, checksum: 720b45220091d2a8fe3fb2740d4b4cf9 (MD5) Previous issue date: 2014-08-16 / CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / O propósito deste trabalho é dissertar sobre as possibilidades do uso da planilha eletrônica como recurso didático no ensino de Matemática. Para exemplificar esse uso, é apresentada uma sequência didática sobre multiplicação de matrizes, abordada sob a perspectiva de transformações no plano. Este trabalho tem um duplo caráter: mostrar que a planilha eletrônica é uma eficiente ferramenta a ser utilizada na intermediação do processo de ensino e aprendizagem de diversos conteúdos e sugerir uma abordagem diferenciada do tópico multiplicação de matrizes no Ensino Médio. É um trabalho de natureza teórica, fundamentado na pesquisa da bibliografia disponível sobre o assunto. Espera-se que sua leitura estimule o uso da planilha eletrônica em sala de aula e, em particular, que ela forneça elementos para o tratamento significativo da multiplicação de matrizes. De uma maneira mais geral, a importância deste trabalho está em promover a inserção das planilhas eletrônicas no contexto escolar, reconhecendo seu potencial pedagógico no ensino de Matemática e no ensino de outras áreas do conhecimento. / The purpose of this work is to discuss the possibilities of using the electronic spreadsheet as a teaching resource in the teaching of Mathematics. To illustrate this use, a didactic sequence on matrix multiplication is presented, approached from the perspective of changes in the plan. This work has a dual character: to show that the electronic spreadsheet is an efficient tool to be used in the intermediation of the teaching and learning process of several contents and suggest a differentiated approach to the matrix multiplication topic in high school. It is a work of theoretical nature, based on the research of the literature available on the subject. It is expected that its reading will stimulate the use of the electronic spreadsheet in the classroom and, in particular, that it will provide evidence for the significant treatment of matrix multiplication. In a more general way, the importance of this work is to promote the integration of electronic spreadsheets in the school context, recognizing its pedagogical potential in the teaching of mathematics and in the teaching of other areas of knowledge.

Due to increasing skill and awareness of overall functions in programs such as Excel, an increasing number of analysts at real estate firms and consultancies have started developing "desktop" versions of valuation models used for professional appraisal of property value. Due to personal preferences, differences in schools and professional backgrounds, these so called desktop models vary in quality, robustness, accuracy, design and user friendliness. Professional software suites are not suitable either, as they are expensive, hard to learn, hard to adapt to specific needs of the business, outdated design and need of additional IT resources. At a multinational Real Estate consultancy such as Jones Lang LaSalle, requirements on tools used for professional opinions on questions as important as property value, are rigorous. Therefore, decision was made to develop a new DCF model which would be closely monitored by management and have a prismatic approach meaning that the model would satisfy the needs of more than one division at Jones Lang LaSalle. When reviewing existing models and practices at the company, the result became a tailored DCF valuation model that was focused on increasing efficiency of appraisers at Jones Lang LaSalle. Aside from being robust and technically sophisticated, the result also suited the specific needs of Jones Lang LaSalle in terms of features and user interface. Development of the model involved several divisions to ensure that the needs were met for Research & Valuation, Capital Markets, Corporate Solutions and Asset Management at Jones Lang LaSalle.

This thesis examines the composition of three different musical works through the use of my constraint-based patterns. I have explored the patterns through spreadsheets and also SuperCollider: a software for algorithmic composition and audio synthesis. The aim is to find how the patterns can be used to reach clear contrasts while maintaining coherence in the music, as well as finding challenges and possibilities within the patterns, while exploring how evaluation of the artistic results can contribute to improved methods. While I see the main method as autoethnographical, with the core focus on composing, I have also used feedback from other composers, and through focus groups, as a way to collect data. Throughout this thesis I describe my process of constructing patterns and composing music, accompanied by my reasoning and relevant feedback. My results from analyzing feedback, score and patterns are that while some ways of using the patterns are well suited for achieving contrast and coherence, problems arose related to (among other things) musical form and predictability. Evaluation through feedback and interviews resulted in a better understanding of the patterns, and different workflows allowed for different viability in the evaluation. The most valuable insight is that the greater the amount of composition parameters which are controlled through constraint-based patterns, the simpler each individual composition parameter has to be in order to reach contrasting results that I find satisfying. My conclusion is that I can therefore design each individual composition parameter with high coherence to reach contrasting results when the composition parameters are applied on the same musical structure.