Upgrading a TCABR data analysis and acquisition system for remote participation using Java, XML, RCP and modern client/server communication/authentication

The TCABR data analysis and acquisition system has been upgraded to support a joint research programme using remote participation technologies. The architecture of the new system uses Java language as programming environment. Since application parameters and hardware in a joint experiment are complex with a large variability of components, requirements and specification solutions need to be flexible and modular, independent from operating system and computer architecture. To describe and organize the information on all the components and the connections among them, systems are developed using the extensible Markup Language (XML) technology. The communication between clients and servers uses remote procedure call (RPC) based on the XML (RPC-XML technology). The integration among Java language, XML and RPC-XML technologies allows to develop easily a standard data and communication access layer between users and laboratories using common software libraries and Web application. The libraries allow data retrieval using the same methods for all user laboratories in the joint collaboration, and the Web application allows a simple graphical user interface (GUI) access. The TCABR tokamak team in collaboration with the IPFN (Instituto de Plasmas e Fusao Nuclear, Instituto Superior Tecnico, Universidade Tecnica de Lisboa) is implementing this remote participation technologies. The first version was tested at the Joint Experiment on TCABR (TCABRJE), a Host Laboratory Experiment, organized in cooperation with the IAEA (International Atomic Energy Agency) in the framework of the IAEA Coordinated Research Project (CRP) on ""Joint Research Using Small Tokamaks"". (C) 2010 Elsevier B.V. All rights reserved.

O papel das tecnologias de informação e comunicação no processo ensino-aprendizagem: um estudo do ensino superior nas modalidades presencial e a distância.

O presente trabalho teve como objetivo identificar o papel das tecnologias de informação e comunicação nas estratégias pedagógicas do processo de ensino-aprendizagem, segundo a percepção dos agentes, docente e discente, em curso superior de tecnologia da área de Ciências Sociais Aplicadas ofertado nas modalidades presencial e a distância. Para alcançar o objetivo foi realizada uma pesquisa qualitativa, operacionalizada por meio de um estudo de caso. As pesquisas teóricas foram em temáticas que conduzissem o pesquisador ao entendimento do assunto e assim subsidiar a ida ao campo. Destacam-se na pesquisa teórica: a educação; os cursos superiores de tecnologia, a partir das suas regulamentações e abrangência; o processo de ensino-aprendizagem, investigando as principais teorias e estratégias presentes nos cursos; e as tecnologias de informação e comunicação, com enfoque especial às voltadas para a educação. A pesquisa empírica ocorreu por meio de um estudo de caso em um curso de uma instituição de ensino superior da região metropolitana de São Paulo que oferece cursos de tecnologia na área de Ciências Sociais Aplicadas, dentre outros: Marketing, Logística, Recursos Humanos e Processos Gerenciais. Os dados foram coletados por meio de entrevistas, com roteiro semi-estruturado, e as estratégias utilizadas para análise foram a Narrativa e a Análise de Conteúdo. Para uma compreensão do assunto foram entrevistados docentes e discentes, do mesmo curso, das duas modalidades: presencial e a distância. As entrevistas foram feitas face a face e pela mesma pessoa, o pesquisador do presente estudo, na região metropolitana de São Paulo e foram posteriormente transcritas para análise. Foram realizadas 28 entrevistas. O resultado possibilitou inferir que há uma convergência de ações implementadas na educação a distância para a educação presencial como a intensificação do uso das Tecnologias de Informação e Comunicação, as quais têm importante papel desde a estratégia para elaboração de uma aula até a devolutiva ao discente.

Autoavaliação institucional na dimensão do SINAES comunicação com a sociedade : estudo de múltiplos casos em instituições de ensino superior do Rio Grande do Norte

This study is about the institutional self-evaluation in Dimension 4, "Communication with Society", from the National System of Higher Education Evaluation SINAES, mandatory for all universities in Brazil. A multiple cases study was conducted with three institutions from Rio Grande do Norte, and the goal was to know how this evaluation is made, describing the concept for the evaluation of communication proposed by them, identifying controllers or emancipator aspects, categorizing methodological procedures and discussing the difficulties reported in the communication evaluation process. Coordinators of the institutions Evaluating Committees were interviewed and data categorized by means of qualitative content analysis. It was noted characteristics of the current controller, emancipator and hybrid designs in the three institutions for evaluation of communication, revealing the lack of a theoretical corpus that transits in accordance with the systemic perspective and epistemology of complexity from SINAES. It was found that the most frequently reported difficulties in the evaluation processes of communication are in the preparation stage, especially in the definition of indicators and tools and awareness work. The weakness in planning makes their own activities in the sector of communication become targets of assessment, forming goals poorly related with broader organizational goals. It was also concluded that the technical evaluation cannot override the issues associated with the broader issue of the complexity surrounding the assessment paradigm proposed by SINAES because contradictions and imperfections are part of the evaluation process and several references are current in the literature to support this view. Finally, it is said that objectives such as transparency and behavioral changes can rely on methodologies and techniques for research on the question of the construction of meaning

Inserção da informática nos cursos de Arquitetura e Urbanismo do Brasil (1994 2006): diagnósticos, rebatimentos e perspectivas nas Instituições Federais de Ensino Superior do Nordeste: UFRN, UFPB e UFPE

This work supports the formalist education s improvement of the Brazilian architect and urban designer through a better application and systematization of the computer science s teaching potentialities. The research analyzes the discipline introduction in the Brazilian courses: Computer Science Applied to Architecture and Urbanism (InfoAU) in the Architecture and Urbanism Courses of Brazil (CAUs). It goes since the discipline was obligated by the MEC s Regulation nr. 1.770 from 1994 until the CNE/CES Resolution nr. 6 from 2006; it comprehends the discipline implantation, development and current context, in order to get more detailed, the research analyses three federal universities from the Northeast of the country: UFRN, UFPB and UFPE. Once identified the historical educational needs in the CAUs, the study focus on the computer science s increasing potential as an agent of integration, communication, development and knowledge/data management. It points out new social perspectives for a better use of this tool/mechanism, which adequately structuralized and integrated, creates propitious educational and professional performance/recycling conditions and a propeller instrument of research and extension activities. Among this work, it is suggested the aggregation of elements, which are complementary to the InfoAU discipline s reorganization, throughout a computerization s plan for the CAUs, extensive to the professional formation, generating a virtuous cycle in several activities of the academic, administrative and, research and extension s departments. Therefore, the InfoAU in the Brazilian CAUs context was analyzed; the main solutions and problems found were systemized; the possibilities of computer science s uses inside AU ware structuralized, InfoAU discipline s improvement plan was also defined, as well as strategies for the implementation of the computerization s plan for the CAUs, which would guarantee its maintenance in a continuity perspective

Short communication: Principal components and factor analytic models for test-day milk yield in Brazilian Holstein cattle

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Group Sequential Communication (GSC): Especificação e Análise de Desempenho de umMecanismo de Comunicação de Tempo Real Compatível ao Padrão IEEE 802.11/11e Aplicado à Automação Industrial

This thesis proposes the specification and performance analysis of a real-time communication mechanism for IEEE 802.11/11e standard. This approach is called Group Sequential Communication (GSC). The GSC has a better performance for dealing with small data packets when compared to the HCCA mechanism by adopting a decentralized medium access control using a publish/subscribe communication scheme. The main objective of the thesis is the HCCA overhead reduction of the Polling, ACK and QoS Null frames exchanged between the Hybrid Coordinator and the polled stations. The GSC eliminates the polling scheme used by HCCA scheduling algorithm by using a Virtual Token Passing procedure among members of the real-time group to whom a high-priority and sequential access to communication medium is granted. In order to improve the reliability of the mechanism proposed into a noisy channel, it is presented an error recovery scheme called second chance algorithm. This scheme is based on block acknowledgment strategy where there is a possibility of retransmitting when missing real-time messages. Thus, the GSC mechanism maintains the real-time traffic across many IEEE 802.11/11e devices, optimized bandwidth usage and minimal delay variation for data packets in the wireless network. For validation purpose of the communication scheme, the GSC and HCCA mechanisms have been implemented in network simulation software developed in C/C++ and their performance results were compared. The experiments show the efficiency of the GSC mechanism, especially in industrial communication scenarios.

Os acidentes humanos e suas implicações fonoaudiológicas: opiniões de docentes e discentes sobre a formação superior

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Synchronization of the unified chaotic system and application in secure communication

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Chemical communication, aggression, and conspecific recognition in the fish Nile tilapia

The chemical modulation of agonistic behavior and conspecific recognition were tested in juveniles of the fish Nile tilapia, Oreochromis niloticus (L.). After a 7-day isolation period, the fish were grouped (four individuals per aquarium) for 7 days. Then fish of alpha and beta ranks (previously matched for similar size) were paired in a neutral territory for analysis of their agonistic interaction. Pairs composed of alpha and beta fish were established with either fish from the same group (familiar) or from two different groups (unfamiliar). The pairs were tested in contiguous compartments, either with water exchange between the compartments or in the absence of water exchange. In each condition the fish were separated by a transparent glass partition. Twelve pairs were tested in each experimental condition. Fish behavior was videotaped and the following variables were analyzed: (a) frequency of and time spent in agonistic patterns, (b) latency to start fighting, and (c) duration of swimming. Water exchange between compartments decreased agonistic interactions. This effect, however, was more pronounced in pairs of fish coming from the same group (in this case, subordinate fish spent less time in confrontations than dominant ones). We conclude that chemical communication decreases aggression in this species by (1) inducing an alarm reaction and (2) increasing conspecific recognition (thus stabilizing the dominance hierarchy). (C) 1997 Elsevier B.V.

Professores de matemática que usam a tecnologia de informação e comunicação no ensino superior

Pós-graduação em Educação Matemática - IGCE

A formação continuada de professores do ensino superior para a atuação docente on-line: desafios e possibilidades

Pós-graduação em Educação - FCT

Preservação digital na gestão da informação: um modelo processual para as instituições de ensino superior

Pós-graduação em Ciência da Informação - FFC

Os sentidos da ciência no cenário industrial: a inovação tecnológica e suas implicações na política de educação superior

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Evolução de um sistema lacustre árido Permiano, parte superior da Formação Pedra de Fogo, borda oeste da Bacia do Parnaíba

Análise faciológica e estratigráfica realizada na região de Filadélfia, TO, borda oeste da Bacia do Parnaíba, permitiu redefinir o paleoambiente da parte superior da Formação Pedra de Fogo, de idade permiana. Os depósitos estudados constituem uma sucessão de aproximadamente 100 m de espessura, predominantemente siliciclástica, com carbonatos e evaporitos subordinados, onde foram definidas 21 fácies sedimentares agrupadas em seis associações de fácies (AF): AF1) Lacustre com rios efêmeros; AF2) Lago influenciado por ondas de tempestade; AF3) Sabkha continental; AF4) Lago central; AF5) Dunas eólicas; e AF6) Lago/oásis com inundito. Estas associações indicam que durante o Permiano, um extenso sistema lacustre de clima árido, desenvolveu-se adjacente a campos de dunas eólicas e sabkha continental, com contribuições de rios efêmeros. Incursões fluviais nos lagos propiciavam a formação de lobos de suspensão e fluxos em lençol (AF1). Planícies de sabkha (AF3) formaram-se nas porções marginais do lago que, eventualmente eram influenciados por ondas de tempestades (AF2), enquanto zonas centrais eram sítios de intensa deposição pelítica (AF4). O baixo suprimento de areia eólica neste sistema propiciou a formação de um campo de dunas restrito (AF5), com desenvolvimento de lagos de interdunas (oásis), onde proliferavam núcleos de samambaias gigantes, inundados esporadicamente por rios efêmeros (AF6). Os dados faciológicos, corroborados pela paleogeografia da região durante o Permiano Superior, indicam que a sedimentação da parte superior da Formação Pedra de Fogo ocorreu sob condições climáticas quentes e áridas.