Orientador: Cecilia Mary Fischer Rubira / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Computação / Made available in DSpace on 2018-07-26T09:38:43Z (GMT). No. of bitstreams: 1 Ferreira_LucianeLamour_M.pdf: 2771486 bytes, checksum: 7961482fc288b5bbb51dd4c0427b671e (MD5) Previous issue date: 1999 / Resumo: Este trabalho baseia-se nos conceitos de orientação a objetos, frameworks, estilos de arquitetura, padrões de projeto e metapadrões, para o projeto e implementação de um framework orientado a objetos para controladores de trens tolerantes a falhas e distribuídos. O principal objetivo é a obtenção de reutilização de software em larga escala, com reutilização tanto de código quanto de todo o projeto de software. No desenvolvimento do framework, nós utilizamos estilos de arquitetura para o projeto da sua parte fixa, e padrões de projeto e metapadrões para a documentação da sua parte adaptável. Nosso objetivo é avaliar as vantagens e desvantagens obtidas na aplicação destas técnicas na construção de frameworks. Este trabalho apresenta também propostas de novos padrões de projeto e estilos de arquitetura, que foram utilizados para resolver problemas do domínio do framework. A principal contribuição dos padrões e estilos é a utilização de reflexão computacional na implementação de tolerância a falhas, com o objetivo de obter estruturas de projeto mais flexíveis, o que é uma característica essencial para obtenção de frameworks realmente reutilizáveis. / Abstract: This work is based on the concepts of object-orientation, frameworks, architectural styles, design pattems and metapattems to the design and implementation of an object-oriented framework for fault-tolerant train controlers. The main goal is to obtain large-scale reuse, reusing not only the code but also the whole software design. In the framework development, we have applied architectural styles in the design of its fixed parts, and design pattems and metapattems in the design of its adaptable parts. Our goal is to evaluate the advantages and disadvantages of applying these tecniques in the framework construction. This work also presents new design pattems and architectural styles that have been used to solve problems in the framework domain. The main contribution of the pattems and styles is the use of computational reflection in the fault tolerance implementation in order to achieve more adaptable design structure, which is an essential feature of frameworks. / Mestrado / Mestre em Ciência da Computação

Orientador: Cecilia Mary Fischer Rubira / Dissertação (mestrado) - Universidade estadual de Campinas, Instituto de Computação / Made available in DSpace on 2018-07-24T16:25:18Z (GMT). No. of bitstreams: 1 Coelho_MariliaGabriela_M.pdf: 2936468 bytes, checksum: 462f6efbbbdec9a8a2e6f94d309a3682 (MD5) Previous issue date: 1998 / Resumo: Uma aplicação interativa é composta de um núcleo funcional (ou aplicação) e da interface do usuário. Uma das maiores dificuldades no desenvolvimento e manutenção de aplicações interativas encontra-se nas dependências entre os módulos que implementam o núcleo funcional e a interface do usuário. Os frameworks atuais para construção de aplicações interativas são baseados em padrões de arquitetura, que não provêem independência de diálogo efetiva para a aplicação. Isto acontece porque, nos padrões de arquitetura existentes, as dependências entre os módulos de uma aplicação interativa são implementadas nos próprios módulos. O objetivo deste trabalho é mostrar como o padrão de arquitetura reflexão computacional pode ser utilizado para implementar de forma efetiva a independência de diálogo em aplicações interativas. Nesta abordagem, os serviços de visuaIização da interface são fornecidos de forma não intrusiva e transparente para a aplicação, pois as dependências entre aplicação e interfuce são implementadas no meta-nível, independentemente do núcleo funcional da aplicação. Este trabalho propõe o padrão de arquitetura MVCR (Modelo Visão Controlador Reflexivo) como uma combinação do padrão de arquitetura para construção de sistemas interativos MVC (Model View Controller) e o padrão de arquitetura reflexão computacional. O padrão MVCR é comparado ao padrão MVC através da efetuação de um estudo de caso utilizando o ET ++, um framework para desenvolvimento de aplicações gráficas cuja arquitetura é baseada no MVC. Para realizarmos o estudo de caso, re-estruturamos o ET ++ utilizando o padrão MVCR (obtendo-se assim o ET ++ Reflexivo) e desenvolvemos uma mesma aplicação utilizando as duas abordagens: o ET ++ original baseado no MVC e o ET ++ Reflexivo baseado no MVCR Desta forma, foi possível comparar e avaliar as vantagens e limitações da abordagem reflexiva. / Abstract: An interactive application is compound by a functional core application (or just application) and its graphical user interface (GUI). One of the main difficulties on the development and maintenance of interactive applications is on the dependence between the application and its graphical user interface. Most of the object-oriented GUI ftameworks are based on arquitectural patterns, that do not provide dialog independence among applications, this occurs in these patterns because the dependence between the application components and GUI components is implemented in the own components. The goal of this work is to show how computational reflection can be used to implement an effective dialog independence in interactive applications. In this appoach, the graphical user interface can be provided in a transparent and non-intrusive way to the application, since the dependence between the application and GUI are implemented on the meta-level. This work proposes the arquitectural pattern RMVC (Reflective ModeWiew/Controller) - a combination of the arquitectura1 pattern MVC (ModeWiew/Controller) and the arquitectural pattern Computational Reflection. We bave carried out a case study in order do compare both patterns MVC and MVCR using the ET++, a GUI framework based on pattern MVC. First, we develop the Reflective ET++, restructuring the ET++ using the MVCR, and then we develop one same application using the two approaches: the original ET ++ based on MVC and the Retlective ET ++ based on MVCR Thus, it was possible to discuss the advantages and limitations of using the retlective approach. / Mestrado / Mestre em Ciência da Computação

Submitted by Etelvina Domingos (etelvina.domingos@ufpe.br) on 2015-03-03T19:14:38Z No. of bitstreams: 3 Tese Final3.0.pdf: 6315013 bytes, checksum: a8214440f43d27b671aaa97456ddc58a (MD5) Jonia_Ficha.pdf1.pdf: 163992 bytes, checksum: b75ea0aedea4269abb4a4ac1a501d46e (MD5) license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) / Made available in DSpace on 2015-03-03T19:14:38Z (GMT). No. of bitstreams: 3 Tese Final3.0.pdf: 6315013 bytes, checksum: a8214440f43d27b671aaa97456ddc58a (MD5) Jonia_Ficha.pdf1.pdf: 163992 bytes, checksum: b75ea0aedea4269abb4a4ac1a501d46e (MD5) license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Previous issue date: 2012 / CNPq / O crescimento populacional é responsável por um aumento contínuo no consumo de fármacos. A inexistência de procedimentos efetivos para a neutralização destes compostos bioativos, anteriormente ao seu despejo em sistemas aquíferos públicos, torna os danos à saúde pública e aos recursos ambientais um sério problema. Os antibióticos apresentam como efeito o aparecimento da resistência bacteriana em ecossistemas. A amoxicilina e a gentamicina são dois dos antibióticos mais administrados no combate a infecções causadas por bactérias gram-positivas e gram-negativas. O presente trabalho tem como objetivo avaliar as MOFs de zinco como agente de remoção da gentamicina em solução aquosa e como agente de degradação da amoxicilina. Estes objetivos foram confirmados através de técnicas experimentais como microscopia eletrônica de varredura (morfologia dos cristais), espectroscopia de absorção na região do infravermelho (modos vibracionais), análises térmicas (estabilidade térmica e dinâmica de decomposição), difração de raios-X de pó. A avaliação da presença dos fármacos adsorvidos ou degradados nas MOFs foi feita por espectrometria de massas, absorção eletrônica na região do ultra-violeta – visível e análise elementar, conjuntamente as técnicas experimentais foram realizados estudos de docking molecular para prever o modo de ligação de fármacos em MOFs. Os resultados experimentais mostraram que a degradação da amoxicilina, ocorre após 7 dias de contato entre fármaco e as MOFs, ocorrendo a degradação completa da amoxicilina. Para a gentamicina os resultados experimentais mostraram que a MOF [Zn(BDC)(H2O)2]n não foi capaz de adsorver a gentamicina. Os resultados apresentados nesta dissertação sugerem que o método de docking molecular constitui uma metodologia adequada para a identificação do modo de afinidade de fármacos para adsorção em MOFs. Desta forma, o método distinguiu entre um composto que interage com as duas MOFs estudadas (amoxicilina) e outro que não interage (gentamicina). O método também reproduziu de forma qualitativa o efeito do pH sobre a energia de interação entre ligante e a MOF, implicando em condições ótimas para adsorção

Broadband has revolutionised the way the Internet is used and has become the critical enabling infrastructure of our modem and knowledge-based economy. Its widespread introduction has not only greatly enhanced the speed at which information online can be accessed, but also the range and sophistication of the content available. It is still penetrating the telecommunication market and is seen by some as the most significant evolutionary step since the emergence of the Internet. However in the rush to achieve market share, there is a risk that insufficient attention may be paid to quality issues, the central theme of this research. The research addresses the issues of broadband quality with a stated objective of assessing broadband quality by means of an integrated framework that encompasses factors beyond strict technical characteristics of broadband networks. Indeed, the concept of quality is a multi-facetted one, for which various perspectives can be distinguished. In this work, broadband quality as perceived by users, ISP and Government in the United Kingdom (UK) is looked at and a survey report is given and analysed. The aim of this doctoral research was to provide much needed empirical broadband quality framework that would guide the service provider as well as the UK government in the provision of quality broadband to its consumers. It will also stand as a benchmark to countries wanting to provide quality broadband to its citizens. A survey research approach was employed to achieve the overall aim and objective of this research. This was conducted using the response of 133 participants located in various boroughs in the UK. The results of the survey show that quality, though desired by many, has been short-changed by the desire to have access to the Internet via broadband at the lowest cost possible. However, this has not encouraged some consumers to switch to broadband from dial-up service despite continuous low prices being offered by service providers. Furthermore, the results also indicated that focusing on broadband quality will improve and promote investment in broadband capacity and decrease the uncertainty in consumer demand for applications such as multi-media content delivery, enhanced electronic commerce and telecommuting that exploit broadband access.

A set of systems are considered where there are multiple agents simultaneously active within real-time a environment. These systems are termed SMART systems and are found in domains as diverse as office administration, process control and aviation. Such systems place particular demands on agents that are not present in non-SMART systems. Actions may be time constrained in two ways: i) an action appropriate at one time may not be appropriate at another; ii) the time available for a required action may approximate to the time in which an agent is able to perform that action. In order to be able to function in such environments agents, both human and computer, must be aware of time constraints and the actions necessary to ensure that they do not compromise system goals.

Master of Science / Department of Agricultural Economics / Aleksan Shanoyan / With the recent increase in record-breaking weather events and the inherent susceptibility of the fishmeal industry to temperature fluctuations, the industry dynamics and sustainability of the Peruvian fishmeal sector has gained renewed attention. Among important causes of concern are the cyclical impact of El Niño Southern Oscillation (ENSO) events on productivity and profitability of fishmeal producing firms, long-term structural changes in the industry, and resulting socio-economic consequences. Although distinct risk management strategies have been implemented by industry players and a range of policy initiatives have been introduced by the government over the years, the firms in the Peruvian fishmeal industry remain highly susceptible to the effects of ENSO events. The increased frequency and magnitude of ENSO events over the past decade has forced relatively less resilient firms out of business and has been accompanied by an observable trend towards increased industry concentration. While there is a potential for efficiency gains and economies of scale from increased concentration, policy makers and industry players have concerns about negative social implications from declining numbers of small and medium firms and shifting competitive dynamics in the industry. As a result, policy-makers and industry stakeholders are in the continuous search for effective strategies and mechanisms for enhancing the resilience of individual fishmeal producers and the overall industry to the effects of ENSO events. The objective of this study is to expand the understanding of factors that affect the resilience of firms to ENSO events in the Peruvian fishmeal industry. The analysis is based on a panel database that combines information from the Peruvian Instituto Nacional de Estadística e Informática (Statistics Institute), Aduanet (Peruvian Customs website), and the Oceanic Niño Index (ONI). The objective is to identify firm characteristics and factors that can potentially enhance the resilience of a firm to the negative impacts of ENSO events. The specific period of study covers the ENSO event that lasted from July 2009 to April 2010. The resilience of individual firms is measured by applying system resilience framework proposed by Barroso et al. (2015). Subsequently, the effect of a range of characteristics on firm resilience is estimated using a fractional response logit method. Among key parameters of interest are the estimated effects of size, experience, location, and participation in government support programs. The results indicate positive relationship between resilience and experience, diversification, access to government subsidy programs, and share of imported inputs. The results also indicate a negative effect of firm size on resilience to ENSO events. The industry and policy implications of the findings are discussed, while highlighting the number of methodological limitations. The overall contribution of this study is twofold. First it presents an application of resilience triangle approach to measuring firm resilience in the context of Peruvian fishmeal industry. Second, it provides new insights on the factors affecting firm resilience to the negative impact of ENSO events. The findings have a potential to inform policy and industry initiatives designed to enhance the industry’s ability to cope with negative consequences of ENSO events.

Abstract The purpose of this research was to develop and test a conceptual framework concerning health care students' views of nursing and factors associated with it. The research process was conducted during 1992-1998 as a practice-based process of theory development, and it included four phases: 1) developing a conceptual framework inductively, 2) developing a measurement tool for testing the conceptual framework, 3) empirical testing of the conceptual framework and 4) analysing the core concept of the conceptual framework. In the first phase of the research, a conceptual framework of health care students' orientation to nursing was developed inductively using the Grounded Theory method. A group of students (n = 35) wrote essays and were interviewed at the beginning of their nursing programme in a polytechnic. In the second phase of the research, an instrument development process was carried out in order to test the conceptual framework. The instrument was tested via a panel evaluation (n = 15) and by using data collected from 184 students of health care. Besides that, 25 students completed the questionnaire twice. The data were used to evaluate the stability of the instrument. In the third phase of the research the hypotheses derived from the conceptual framework and the previous research results were tested by using the data (n = 184) which had been collected with the tool developed earlier. Besides that, the students from the first phase of the research (n = 19) were interviewed. These qualitative data were analysed by deductive content analysis. In the fourth phase of the research, the concept "orientation to nursing" was analysed in order to further elaborate the conceptual framework. Three different types of students' orientations to nursing were found: a caring orientation, a nursing profession orientation and a life orientation. The orientations differed from each other with regard to the prerequisites of orientation, the core of orientation, the meaning of nursing and the goals applied to a nursing career.According to the results of testing the theoretical framework, a majority of the students were highly life-oriented, and two thirds had average nursing expertise and caring orientation scores. The special characteristics of the students' orientation were emphasised during the education: caring-oriented students emphasised their personal development, nursing profession-oriented students the integration of theory and practice and life-oriented students emphasised the integration of studies, work and personal life. The nursing expertise and life orientation scores increased during the education. Caring orientation did not change during the education. On the basis of the research results, a tentative theory of health care students' orientation to nursing is presented and methods for developing the teaching of nursing and learning to nurse are suggested.

Title: Extensibility Framework for a Generic Benchmarking Environment Type: Master thesis Author: Tadeáš Palusga Department: Department of Distributed and Dependable Systems Faculty of Mathematics and Physics Charles University Supervisor: RNDr. Andrej Podzimek, Ph.D. Department of Distributed and Dependable Systems Faculty of Mathematics and Physics Charles University Abstract: In 2004, at Faculty of Mathematics and Physics, Charles University, a project called BEEN (Benchmarking Environment) was introduced. The original aim of this project was to create a highly configurable and modular environment for middleware applications benchmarking. This project was successfully defended in 2007. In 2011, another group of students introduced a successor of this project called WillBEEN. Finally, in 2013 a project entitled EverBEEN, which was a complete reimplementation of the WillBEEN project, was successfully defended. The goal of the EverBEEN project was to bring newer technologies, asynchronous communication and stability improvements into the BEEN project family and resulted in a reimplementation from scratch. Despite all the effort, project EverBEEN remained tightly coupled with underlying libraries and technologies, contained a lot of generated code hard to maintain nor extend and last but not least the...

Project management is an experiential subject, and existing passive methods of teaching via lectures and seminars restricts learning to knowledge rather than leading to the deep understanding of the topic that the project management industry requires. Higher Education needs to produce competent graduates, i.e. those with both knowledge and experience. This research created and validated a conceptual framework to assist in the development of new project management simulations. The investigation confirmed that the use of simulations in the teaching of project management is a valid method of delivering experiential learning, and proposes a framework for how project management simulations can be created. The research commenced with a literature review, and a questionnaire was issued to project management lecturers to collect information on existing teaching methods and the current use of activities and simulations in the teaching of project management. From the literature and the questionnaire, a conceptual framework was created to assists in the development of new project management simulations. This framework was then tested by the creation of a new simulation. Finally, the conceptual framework was evaluated and validated by peers who have experience with project management simulations as project management lecturers. Following this validation the conceptual framework was further revised. The contribution to knowledge is threefold. Firstly the research provides a literature review into the use of simulations within project management teaching. Secondly the conceptual framework provides a starting point to other academics who are considering developing their own simulations, and finally the conceptual framework can be used to asses existing simulations. The results of the study show that the conceptual framework will greatly benefit academics when considering the development of simulations in project management teaching. This is important, because there is a growing need for student centred learning, and students who have a competence in their subjects as well as knowledge.

Philosophiae Doctor - PhD / Adaptive networks are complex networks with nontrivial topological features and connection patterns between their elements which are neither purely regular nor purely random. Their applications are in sociology, biology, physics, genetics, epidemiology, chemistry, ecology, materials science, the traditional Internet and the emerging Internet of-Things. For example, their applications in sociology include social networks such as Facebook which have recently raised the interest of the research community. These networks may hide patterns which, when revealed, can be of great interest in many practical applications. While the current adaptive network models remain mostly theoretical and conceptual, however, there is currently no unified modelling framework for implementing the development, comparison, communication and validation of agent-based adaptive network models through using proper empirical data and computation models from different research fields. In this thesis, a unified framework has been developed that combines agent- based adaptive network models and adaptive control structures. In this framework, the control parameters of adaptive network models are included as a part of the state- topology coevolution and are automatically adjusted according to the observations obtained from the system being studied. This allows the automatic generation of enhanced adaptive networks by systematically adjusting both the network topology and the control parameters at the same time to accurately reflect the real-world complex system. We develop three different applications within the general framework for agent- based adaptive network modelling and simulation of real-world complex systems in different research fields. First, a unified framework which combines adaptive net- work models and adaptive control structures is proposed for modelling and simulation of fractured-rock aquifer systems. Moreover, we use this unified modelling framework to develop an automatic modelling tool, Fracture3D, for automatically building enhanced fracture adaptive network models of fractured-rock aquifer systems, in which the fracture statistics and the structural properties can both follow the observed statistics from natural fracture networks. We show that the coupling between the fracture adaptive network models and the adaptive control structures with iterative parameter identification can drive the network topology towards a desired state by dynamically updating the geometrical states of fractures with a proper adaptive control structure. Second, we develop a unified framework which combines adaptive network models and multiple model adaptive control structures for modelling and simulation of social network systems. By using such a unified modelling framework, an automatic modelling tool, SMRI, is developed for automatically building the enhanced social adaptive network models through using mobile-phone-centric multimodal data with suitable computational models of behavioural state update and social interaction update. We show that the coupling between the social adaptive network models and the multiple model adaptive control structures can drive the community structure of a social adaptive network models towards a desired state through using the suitable computational models of behavioural state update and social interaction update predetermined by the multiple model adaptive control structure. Third, we develop a unified framework which combines adaptive network models and support vector machine based adaptive control structures for modelling and simulation of multicast congestion in mobile ad hoc network systems. Moreover, a multicast congestion detection scheme, WMCD, has been developed for the unified modelling framework, in which the incipient congestions of group members can be predicted by using support vector machine-based prediction models and current traffic states. We show that the network’s throughput capacity is efficiently improved through using the unified modelling framework, which dynamically adjusting the group structures according to the updated congestion states of group members generated by the WMCD scheme in order to relieve the high load.