7,345 research outputs found

    VOCATIONAL EDUCATION INTEGRATED TO SECONDARY SCHOOL AT A FEDERAL INSTITUTE IN THE NORTH OF BRAZIL: CONTRADICTIONS AND PERSPECTIVES

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    Held at the Federal Institute of Education, Science and Technology of Acre, the research aimed to identify the perception of the course of 44 students and 13 teachers from 4 classes of Technical Vocational Education in Middle Level Integrated to computer science of Câmpus Rio Branco, during the academic year of 2013, through questionnaires with five questions. The apparent lack of motivation among students proved to be dissatisfaction with the organizational structure. Teachers agreed that reform is paramount in the course offered

    A Tri-Valued Belief Network Model for Information Retrieval

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    A Tri-Valued Belief Network Model for Information Retrieval

    DIVERSE: a Software Toolkit to Integrate Distributed Simulations with Heterogeneous Virtual Environments

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    We present DIVERSE (Device Independent Virtual Environments- Reconfigurable, Scalable, Extensible), which is a modular collection of complimentary software packages that we have developed to facilitate the creation of distributed operator-in-the-loop simulations. In DIVERSE we introduce a novel implementation of remote shared memory (distributed shared memory) that uses Internet Protocol (IP) networks. We also introduce a new method that automatically extends hardware drivers (not in the operating system kernel driver sense) into inter-process and Internet hardware services. Using DIVERSE, a program can display in a CAVE™, ImmersaDesk™, head mounted display (HMD), desktop or laptop without modification. We have developed a method of configuring user programs at run-time by loading dynamic shared objects (DSOs), in contrast to the more common practice of creating interpreted configuration languages. We find that by loading DSOs the development time, complexity and size of DIVERSE and DIVERSE user applications is significantly reduced. Configurations to support different I/O devices, device emulators, visual displays, and any component of a user application including interaction techniques, can be changed at run-time by loading different sets of DIVERSE DSOs. In addition, interpreted run-time configuration parsers have been implemented using DIVERSE DSOs; new ones can be created as needed. DIVERSE is free software, licensed under the terms of the GNU General Public License (GPL) and the GNU Lesser General Public License (LGPL) licenses. We describe the DIVERSE architecture and demonstrate how DIVERSE was used in the development of a specific application, an operator-in-the-loop Navy ship-board crane simulator, which runs unmodified on a desktop computer and/or in a CAVE with motion base motion queuing

    Geles termorreversíveis na veiculação de fármacos

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    Orientação: Maria Lídia PalmaGeles termorreversíveis constituem um potencial sistema para a libertação controlada de fármacos. Estes geles gelificam a determinada temperatura, isto é, quando se encontram a baixas temperaturas comportam-se como soluções e a temperaturas específicas comportam-se como geles, aumentando o tempo de residência do fármaco no alvo. Apresentam-se, portanto, como uma aposta promissora para várias vias de administração de fármacos tais como oftálmica, rectal e aplicação tópica. O objetivo deste trabalho de campo foi o desenvolvimento e caracterização de quatro hidrogeles termorreversíves usando diferentes composições de polímeros: Poloxamer® F127; F127 com quitosano; F127 com carbómero® 940; F127 com goma xantana. Os geles foram preparados com base no método “Cold” com algumas adaptações. Os geles depois foram caracterizados em termos de viscosidade, análise térmica e da citotoxicidade geral tendo como referência base o modelo de Sacchamoryces Cerevisiae. Neste estudo observou-se um aumento de viscosidade proporcional ao aumento da temperatura. Todos os geles se comportaram como soluções a 4°C e como geles a 37°C. Os resultados da análise térmica evidenciaram a transição de estado através dos termogramas obtidos. As imagens obtidas com recurso ao SEM demonstraram a presença de cavidades/poros. Quanto ao estudo da citotoxicidade, este estudo sugere os geles não apresentam citotoxicidade no modelo utilizado. Concluindo, este trabalho de campo reforça a possível aplicação de geles termoreversíveis como veículo de libertação controlada de fármacos. No futuro irão ser realizados novos passos, incluindo a preparação de nanopartículas e sistemas lipídicos e a sua incorporação nos diferentes geles termorreversíves. Para corroborar estes resultados deverão ainda ser realizados estudos de permeação e adesão in vitro e in vivo bem como de citotoxicidade usando um modelo que inclua outros modelos celulares mais complexos.Thermo-reversible gels are a potential system for controlled drug delivery. These gels gel at a certain temperature, i.e. when at low temperatures behave as solutions and at specific temperatures behave as gels, increasing the residence time of the drug in the target. They are, therefore, presented as a promising bet for various routes of administration of drugs such as parenteral, ophthalmic, rectal and topical application. The aim of this study, was the development and characterization of four thermoreversible hydrogels using different polymer compositions: Poloxamer® F127; F127 with chitosan; F127 with carbomer® 940; F127 with xanthan gum. The gels were prepared based on the Cold method with some adaptations. The gels were then characterized in terms of viscosity, thermal analysis and general cytotoxicity with reference to the Saccharomyces cerevisiae model. In this study it was observed that a proportional increase in viscosity was observed with the increase in temperature. All gels behaved as solutions at 4 ° C and as gels at 37 ° C. The results of the thermal analysis showed the state transition through the obtained thermograms. The images obtained using SEM showed the presence of cavities / pores. Regarding the study of cytotoxicity, this study suggests gels do not present cytotoxicity in the model used. In conclusion, this experimental study reinforces the application of thermoreversible gels as a vehicle for controlled release of drugs, improving their efficacy. Further steps will be taken in the future, including the preparation of nanoparticles and lipid systems and their incorporation into the different thermoreversive gels. In order to corroborate these results, in vitro and in vivo permeation and adhesion studies as well as cytotoxicity should be performed using a model that includes other more complex cellular models

    Fintech report: an overview of the Iberian fintech market

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    The FinTech industry is quite dynamic and it has progressed beyond its early stages rapidly. FinTech can be defined as “organizations that combine innovative business models and technology to enable, enhance and disrupt financial services” (Hwa, 2019). This Work Project aims to analyse Portuguese and Spanish FinTechs and combine the findings in a comprehensive report of the Iberian FinTech ecosystem. This paper explains how that report was built and it is organized in four main parts: literature review, methodology, results and personal reflection. Additionally, limitations and recommendations for further research are presented in the end of the paper

    The Impact of Dashboard Visualizations in CISCO’s: Operations & Decision-Making Processes

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    Internship Report presented as the partial requirement for obtaining a Master's degree in Information Management, specialization in Knowledge Management and Business IntelligenceBusiness Intelligence has been growing significantly in recent years and has been more and more used in companies that strive for innovation and to always be up to date with their competitors. With this, there’s an increased need to have specialized professionals that deliver new perspectives and insights of looking at the data and allow for the companies to grow wisely and efficiently. It is crucial to understand in what ways the concept of Business Intelligence being implemented and a regular practice has an impact on the companies and how they function, that being the main subject of study of the report. This report is with regards to the one-year internship started in March of 2022 as a Business Operations Analyst at CISCO, with the aim of conducting a deep analysis and translating the data into actional business insights and assist business functions to create value for key strategic initiatives, namely by gathering data, creating dynamic visualizations through dashboards, and analyzing/investigating their impact and importance on the firm’s efficiency and how it influences its decision-making processes. With this internship I was able to not only learn but to also experience in first-hand the importance of business intelligence and have a practical example of how the outcomes changed when compared to previous solutions and practices

    SDGs, Why? and For Whom? How to Implement Partnerships to Achieve the Sustainable Development Goals

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    Fazer negócios da forma usual não permite transformar o mundo como desejamos. A procura de novos modelos de desenvolvimento tem sido feita ao longo de séculos. Ir além do crescimento económico, proteger o planeta e promover a dignidade humana não deixando ninguém para trás, são ideias fáceis de compreender, mas difíceis de implementar. Considera-se neste estudo que Desenvolvimento Sustentável é o nome do novo Jogo, e que os Objetivos do Desenvolvimento Sustentável (ODS) adicionam as Instituições e as Parcerias, respetivamente as Regras do Jogo, e os Jogadores, para que este desafio se materialize e o Jogo seja ganho. Este estudo faz primeiro uma abordagem do topo para a base, cobrindo a evolução do conceito de desenvolvimento, seguida de uma análise sobre um novo institucionalismo para o desenvolvimento onde a economia é humanizada, complementada pela vontade de compreender o desafio da cooperação, para que existam parcerias saudáveis de longo prazo. Da base para o topo, é feita a exploração de 120 casos de estudo de People-first PPPs, parcerias assentes em Value for People, cobrindo 57 países em todos os continentes e os 17 objetivos dos ODS. Desta forma são apresentadas e partilhadas experiências que, não sendo perfeitas, são reais, e demonstram que ilhas de competência são possíveis, quando existem equipas alinhadas com políticas de desenvolvimento, programas de investimento e projetos de mudança, que têm como objetivo melhorar a qualidade de vida das comunidades. Com o objetivo de facilitar a comunicação para a implementação foi criada uma caixa de ferramentas com conceitos que podem ser utilizados por cientistas e praticantes de políticas de desenvolvimento que, estando motivados para utilizar os ODS como uma nova linguagem de desenvolvimento, para transformar cidades, regiões, e as suas organizações, de forma a que a prosperidade económica contribua para preservar o planeta, para que a espécie humana o continue a habitar, e ao mesmo tempo a pobreza seja erradicada

    An implementation framework for emotion based adaptive agents

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    Trabalho de projecto de mestrado em Engenharia Informática, apresentado à Universidade de Lisboa, através da Faculdade de Ciências, 2008Está a ser desenvolvido, na unidade de investigação LabMAg, o projecto “AutoFocus:Adaptive Self-Improving Multi-Agent Systems", no qual o presente trabalho de mestrado se enquadra. O projecto AutoFocus tem como objectivo a implementação de sistemas multi-agente baseados em entidades autonómicas capazes de comportamentos auto-optimizados e adaptativos. A noção de computação autonómica, tal como outras noções que também implicam computação pró-activa, baseia-se em entidades autónomas que agem activamente no sentido de alcançar os seus objectivos e que têm a capacidade de se adaptar dinamicamente a mudanças no seu ambiente, restringidas por limites de tempo e de recursos. Na abordagem do projecto AutoFocus essa adaptação à mudança, assim como a regulação das capacidades dos agentes, é resultante da combinação de aspectos cognitivos com aspectos de base emocional. O modelo de agente subjacente ao projecto AutoFocus é o Modelo de Agente de Fluxo. A tarefa a que correspondeu este projecto de mestrado, consistiu em desenvolver uma plataforma de implementação para o Modelo de Agente de Fluxo. Pretendeuse com esta plataforma disponibilizar uma ferramenta que permita a rápida implementação de agentes baseados neste modelo bem como a sua monitorização. O trabalho desenvolvido consistiu na análise e desenho, orientado a objectos, implementação e teste dos componentes desta plataforma.The work presented in this document is part of the project “AutoFocus: Adaptive Self-Improving Multi-Agent Systems" that is being developed at the research unit LabMAg, which objective is the implementation of multi-agent systems based on autonomous entities capable of self-optimized and adaptive behaviors. The notion of autonomic computation, like other notions that also imply proactive computation, is based on autonomous entities that actively work to achieve their objectives and have the ability to dynamically adjust to changes in their environment, constrained by time and resource limits. In the approach used by the AutoFocus project, that adaptation to change and the regulation of the agent's capabilities, result from the combination of cognitive aspects with emotional based aspects. The agent model de_ned and used by the AutoFocus project is the Agent Flow Model. The task that corresponded to the work presented in this document was to develop a platform for the Agent Flow Model. It was intended, with this platform, to provide a tool that enables the rapid deployment and monitoring of agents based on this model. The developed work consisted in the analysis and design, oriented to objects, implementation and testing of components of this platform
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