Call number: LD2668 .T4 1986 H56 / Master of Science / Computing and Information Sciences

The Legacy information systems were created with the purpose of automate process that before of the informatics invention were made in a manual way, these systems have gained prominence over the years because organizations have become increasingly dependent of them, and the information they generate and manage have a great value. Nowadays new tendencies and paradigms make that business and organizations base the majority of their process in information systems and it is imperative that new technology can works together with legacy systems, for this reason the information must be integrated. Therefore under this context, is necessary to raise an alternative solution for integrating information of different legacy systems. In this thesis, is examined the problem, is described the importance of legacy systems in contrast with new current technological tendencies, besides is analyzed tools which we can achieve information integration and is purposed an alternative solution to problem through a multiplatform information system integrator, additionally, it proposes a integration methodology, leaving an established base to perform the development of a new system in order to replace the legacy system. The proposed solution has been proven through a case study in a business tourism sector, which was able to verify: that it is possible to integrate information from a system that handles flat files, display the information on a web interface for example, and start migration to a new relational database. After completing the proof of solution, we can say that this can integrate information regardless of the operating system and can be used in different organizations or companies. / Los sistemas de información legacy o heredados fueron creados con la finalidad de automatizar procesos que antes de la invención de la informática se hacían de forma manual, estos sistemas han cobrado importancia con los años porque las organizaciones han ido dependiendo cada vez más de ellos y la información que generan y administran son de gran valor. Hoy en día con las nuevas tendencias y paradigmas hacen que los negocios y organizaciones basen la mayoría de sus procesos en los sistemas de información y es imprescindible que la nueva tecnología conviva con los sistemas legacy o heredados; por tal motivo la información debe ser integrada. Bajo este contexto, es necesario plantear una alternativa de solución que permita integrar la información de diversos sistemas legacy o heredados. En la presente tesis, se analiza el origen del problema, se describe la importancia de los sistemas legacy o heredados frente a las nuevas tendencias tecnológicas actuales, se analiza las herramientas con las que podemos lograr integración de información, y se propone una alternativa de solución al problema mediante un sistema integrador de información multiplataforma adaptable a cualquier tipo de negocio. Adicionalmente, se propone una metodología de integración que deja una base establecida para realizar el desarrollo de un nuevo sistema que reemplace al sistema legacy o heredado. La solución propuesta ha sido probada mediante un caso de estudio en una empresa del sector turismo, donde se pudo verificar: que es posible integrar la información de un sistema que maneja archivos planos, mostrar la información en una interfase Web por ejemplo, y empezar la migración hacia una nueva base de datos relacional. Después de realizadas las pruebas de la solución se puede afirmar que esta puede integrar información sin importar el sistema operativo y que puede ser usado en distintas organizaciones o empresas.

My research study aimed to explore the pedagogic shifts between working with concrete to more abstract conceptions of number. By using a case study approach focused on a grade 2 (G2) Foundation Phase (FP) teacher who retained her class into grade 3 (G3), I gathered data on her teaching over two years (2012-13) in the context of the ‘Lesson Starters Project’ (LSP). In addition, the teacher also participated in another project within the Wits Maths Connect Primary project (WMC-P) which was focused on developing content knowledge related to primary mathematics during 2013. Whilst content knowledge course assessment indicated gains through this year, the teacher’s results indicated gaps in mathematical content knowledge - a feature that literature has highlighted as quite common amongst primary teachers in South Africa and internationally. My focus in this study is on the extent to which this teacher in the LSP professional development project specialised content and modes of representation and showed connections between these aspects. The findings showed that there were varying degrees of specialisation of content and specialisation of representations. In other words, the teacher is seen to make the mathematics more sophisticated in conjunction with the use of a variety of representations or strategies. There was evidence that the degree of shifts towards more abstract strategies depended at least partially on the teacher’s beliefs about the abilities of different learners in her class.

The structure of minimal zero-dimensional extension of rings with Noetherian spectrum in which zero is a primary ideal and with at most one prime ideal of height greater than one is determined. These rings include K[[X,T]] where K is a field and Dedenkind domains, but need not be Noetherian nor integrally closed. We show that for such a ring R there is a one-to-one correspondence between isomorphism classes of minimal zero-dimensional extensions of R and sets M, where the elements of M are ideals of R primary for distinct prime ideals of height greater than zero. A subsidiary result is the classification of minimal zero-dimensional extensions of general ZPI-rings. / by Marcela Chiorescu. / Thesis (Ph.D.)--Florida Atlantic University, 2009. / Includes bibliography. / Electronic reproduction. Boca Raton, Fla., 2009. Mode of access: World Wide Web.

The culmination of my graduate research and investigations is my thesis exhibition Solace; Intimately Remembered Places. This body of paintings is a visual representation of land, water and flora that focuses on my abstraction of nature to extract essential elements that expresses my deep connection to a specific time and place, layered with associated memories. By revisiting a landscape over a sustained period of time, I developed a personal visual vocabulary to communicate the essential abstract forms of nature and record the subtle nuances of color, light, shape, texture, positive and negative space to evoke a particular time and place. I expanded my painting techniques through the addition of a laser cutter. Rooted in a background of graphic design, my thesis also incorporated and included a book form using similar strategies. / Includes bibliography. / Thesis (M.F.A.)--Florida Atlantic University, 2017. / FAU Electronic Theses and Dissertations Collection

We say that a commutative ring R has the unique decomposition into ideals (UDI) property if, for any R-module which decomposes into a finite direct sum of indecomposable ideals, this decomposition is unique up to the order and isomorphism class of the ideals. In a 2001 paper, Goeters and Olberding characterize the UDI property for Noetherian integral domains. In Chapters 1-3 the UDI property for reduced Noetherian rings is characterized. In Chapter 4 it is shown that overrings of one-dimensional reduced commutative Noetherian rings with the UDI property have the UDI property, also. In Chapter 5 we show that the UDI property implies the Krull-Schmidt property for direct sums of torsion-free rank one modules for a reduced local commutative Noetherian one-dimensional ring R. / by Basak Ay. / Thesis (Ph.D.)--Florida Atlantic University, 2010. / Includes bibliography. / Electronic reproduction. Boca Raton, Fla., 2010. Mode of access: World Wide Web.

O principal objetivo desta pesquisa consiste no estudo, desenvolvimento e aplicação de um conjunto de procedimentos metodológicos introdutórios para leitura e percepção da paisagem geográfica, direcionados ao ensino fundamental. Trata-se de uma proposta de articulação de conteúdos de Arte e Geografia baseada na noção de paisagem como texto não-verbal, cuja organização dos procedimentos de leitura recorre a subsídios da semiótica. Os conteúdos de Arte explorados nesta tese buscam identificar as transformações da noção polissêmica de paisagem, concentrando-se no abstracionismo informal e nas paisagens do pintor brasileiro Antônio Bandeira um dos principais representantes dessa tendência no Brasil a fim de possibilitar um processo alternativo de percepção estética da paisagem. Os conteúdos de Geografia alinham-se principalmente com as pesquisas recentes da Geografia Cultural, que após receberem múltiplas contribuições e influências, tais como da Antropologia, da História, da Filosofia fenomenológica e existencialista, concebe a paisagem como texto e como marca e matriz cultural, principais abordagens nas quais esta pesquisa inspirou-se. Após a reflexão teórica, foi realizado o experimento de uma parcela dos procedimentos metodológicos propostos, com alunos de 7ª série. Os resultados demonstraram que é possível uma mudança na percepção e leitura da paisagem geográfica, quando os modelos de paisagem também são modificados. Verificou-se: abandono da perspectiva e incorporação de vários pontos de vista numa mesma paisagem (visão horizontal, vertical e oblíqua); adição das sensações olfativas, auditivas e táteis; o consentimento da escala afetiva na representação dos elementos; possibilidade de vínculo com o aprendizado das representações cartográficas, dado o caráter abstrato das pinturas de paisagens contemporâneas; a leitura não-verbal como estímulo à expressão verbal; alto grau de interesse dos alunos não só pelos conteúdos desenvolvidos, mas principalmente pelas estratégias envolvendo arte e pintura a guache / The main objective of this research is the study, development and application of a set of introductory methodological procedures for the study and perception of geographical landscapes in elementary education. It is a proposal for the synchronization of the course content of Art and Geography based on the concept of the landscape as a non-verbal text, whose organization of study procedures relies on semiotic assistance. The Art-related content investigated in this thesis aims to identify transformations of the polyssemic notion of landscapes, focusing on informal abstractism and landscapes painted by the Brazilian painter Antônio Bandeira - one of the foremost examples of this tendency in Brazil - in order to create a feasible alternative process for the esthetic perception of landscapes. Geography content is mainly in accordance with recent research in Cultural Geography, which, upon receiving several contributions and influences, for example from Anthropology, History, and phenomenological and existentialist Philosophy, envisages a landscape as a text and a cultural mark and matrix. This approach was the main inspiration for this research. After theoretical reflection, an experiment was carried out involving a part of the proposed methodological procedures among 7th grade students. The results show that a change in perception and study of geographical landscapes is possible, when the landscape models are also modified. The abandonment of the perspective and incorporation of several points of view into a single landscape (horizontal, vertical and oblique view) was noted; addition of olfactory, audio and touch sensations; the contentment of an affective scale in the representation of elements; the possibility of a connection with the learning of map representations, given the abstract character of contemporary landscape paintings; the non-verbal study as a stimulus to verbal expression; a high-level of interest on the part of students not only in the content developed, but mainly in the strategies involving art and gouache painting

Typescript (photocopy). / Digitized by Kansas Correctional Industries / Department: Computer Science.

Submitted by Filipe dos Santos (fsantos@pucsp.br) on 2017-08-17T12:45:28Z No. of bitstreams: 1 Maurício Topal de Moraes.pdf: 1070279 bytes, checksum: b00443b3e02f017231f21fe5298919ec (MD5) / Made available in DSpace on 2017-08-17T12:45:28Z (GMT). No. of bitstreams: 1 Maurício Topal de Moraes.pdf: 1070279 bytes, checksum: b00443b3e02f017231f21fe5298919ec (MD5) Previous issue date: 2017-08-11 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / This research proposes the abstract subjective production of artistic action as intrinsic to the technical arrangements of social production. The investigation is based on the conception of abstract subjective production, as shown by Deleuze and Guattari, as well as on the understanding of technical arrangements – museums, schools, industries – as parts of the social machine, inspired by the concept of technical machine, of the same authors. The object of study is the abstract subjective essence of art, as a process of abstraction typical of artistic machines. Artistic production necessarily involves an abstract subjective essence, beyond determinate objective representations. Artistic machines are productive arrangements from which abstraction techniques exceed the limits of symbolic systems toward praxis based on decoded flows contingent to the socius. These machines operate as functional parts to the capitalist economy by supporting its productive performance – for instance, scientific machines –, but also concern the formation of arrangements that overcome the regulatory injunctions of this system / Esta pesquisa propõe a produção abstrata subjetiva da ação artística como intrínseca aos agenciamentos técnicos da produção social. A investigação parte da concepção da essência abstrata subjetiva da produção, apresentada por Deleuze e Guattari, assim como da compreensão de agenciamentos técnicos – museus, escolas, indústrias, por exemplo – como peças da máquina social, inspirada no conceito de máquina técnica, dos mesmos autores. O objeto do estudo é a essência abstrata subjetiva da arte, como processo de abstração característico das máquinas artísticas. A produção artística necessariamente manifesta uma essência abstrata subjetiva, para além das representações objetivas determinadas. As máquinas artísticas seriam agenciamentos produtivos cujas técnicas de abstração extrapolam os limites de sistemas simbólicos em direção à práxis estabelecida nos fluxos descodificados contingentes do socius. Estas máquinas operam como peças funcionais à economia capitalista ao favorecer o desempenho produtivo – por exemplo, as máquinas científicas –, mas também dizem respeito à formação de agenciamentos que superam as injunções reguladoras deste sistema

O uso de novos recursos de display e interação para suportar a visualização imersiva de dados e incrementar o raciocínio analítico é uma tendência de pesquisa em Visualização de Informações. Neste trabalho, avaliamos o uso de ambientes baseados em HMD para a exploração de dados multidimensionais, representados em scatterplots 3D como resultado de redução de dimensionalidade. Nós apresentamos uma nova modelagem para o problema de avaliação neste contexto, levando em conta os dois fatores cuja interação determina o impacto no desempenho total nas tarefas: a diferença nos erros introduzidos ao se realizar redução de dimensionalidade para 2D ou 3D, e a diferença nos erros de percepção humana sob diferentes condições de visualização. Este framework em duas etapas oferece uma abordagem simples para estimar os benefícios de se utilizar um setup 3D imersivo para um dado conjunto de dados. Como caso de uso, os erros de redução de dimensionalidade para uma série de conjuntos de dados de votações na Câmara dos Deputados, ao se utilizar duas ou três dimensões, são avaliados por meio de uma abordagem empírica baseada em tarefas. O erro de percepção e o desempenho geral de tarefa, por sua vez, são avaliados através de estudos controlados comparativos com usuários. Comparando-se visualizações baseadas em desktop (2D e 3D) e em HMD (3D), resultados iniciais indicaram que os erros de percepção foram baixos e similares em todas abordagens, resultando em benefícios para o desempenho geral em ambas técnicas 3D A condição imersiva, no entanto, demonstrou requerer menor esforço para encontrar as informações e menos navegação, além de prover percepções subjetivas de precisão e engajamento muito maiores. Todavia, o uso de navegação por voo livre resultou em tempos ineficientes e frequente desconforto nos usuários. Em um segundo momento, implementamos e avaliamos uma abordagem alternativa de exploração de dados, onde o usuário permanece sentado e mudanças no ponto de vista só são possíveis por meio de movimentos físicos. Toda a manipulação é realizada diretamente por gestos aéreos naturais, com os dados sendo renderizados ao alcance dos braços. A reprodução virtual de uma cópia exata da mesa de trabalho do analista visa aumentar a imersão e possibilitar a interação tangível com controles e informações bidimensionais associadas. Um segundo estudo com usuários foi conduzido em comparação a uma versão equivalente baseada em desktop, explorando um conjunto de 9 tarefas representativas de percepção e interação, baseadas em literatura prévia. Nós demonstramos que o nosso protótipo, chamado VirtualDesk, apresentou resultados excelentes em relação a conforto e imersão, e desempenho equivalente ou superior em todas tarefas analíticas, enquanto adicionando pouco ou nenhum tempo extra e ampliando a exploração dos dados. / The use of novel displays and interaction resources to support immersive data visualization and improve the analytical reasoning is a research trend in Information Visualization. In this work, we evaluate the use of HMD-based environments for the exploration of multidimensional data, represented in 3D scatterplots as a result of dimensionality reduction. We present a new modelling for the evaluation problem in such a context, accounting for the two factors whose interplay determine the impact on the overall task performance: the difference in errors introduced by performing dimensionality reduction to 2D or 3D, and the difference in human perception errors under different visualization conditions. This two-step framework offers a simple approach to estimate the benefits of using an immersive 3D setup for a particular dataset. As use case, the dimensionality reduction errors for a series of roll calls datasets when using two or three dimensions are evaluated through an empirical task-based approach. The perception error and overall task performance are assessed through controlled comparative user studies. When comparing desktop-based (2D and 3D) with an HMD-based (3D) visualization, initial results indicated that perception errors were low and similar in all approaches, resulting in overall performance benefits in both 3D techniques. The immersive condition, however, was found to require less effort to find information and less navigation, besides providing much larger subjective perception of accuracy and engagement. Nonetheless, the use of flying navigation resulted in inefficient times and frequent user discomfort In a second moment, we implemented and evaluated an alternative data exploration approach where the user remains seated and viewpoint change is only realisable through physical movements. All manipulation is done directly by natural mid-air gestures, with the data being rendered at arm’s reach. The virtual reproduction of an exact copy of the analyst’s desk aims to increase immersion and enable tangible interaction with controls and two dimensional associated information. A second user study was carried out comparing this scenario to a desktop-based equivalent, exploring a set of 9 representative perception and interaction tasks based on previous literature. We demonstrate that our prototype setup, named VirtualDesk, presents excellent results regarding user comfort and immersion, and performs equally or better in all analytical tasks, while adding minimal or no time overhead and amplifying data exploration.