Um mecanismo para realçar a conectividade de roteamento geográfico na transmissão multimídia em VANTs

As redes de Veículos Aéreos Não Tripulados (VANTs) têm potencializado o uso de aplicações multimídia devido ao seu elevado grau de mobilidade e versatilidade. Esse crescimento ocorre pela facilidade de acesso e utilização dos VANTs quadricópteros em diversas aplicações civis. As aplicações civis têm como característica principal o uso de dados multimídia, como vídeos, por oferecerem uma perspectiva visual mais detalhada do ambiente. A transmissão desse tipo de dado nas redes VANTs por meio de protocolos geográ cos melhora a taxa de entrega de dados. Entretanto, ela ainda não é su ciente para prover qualidade de experiência (QoE). Isso ocorre devido ao elevado grau de mobilidade dos quadricópteros que ocasiona quebras de enlace durante a transmissão multimídia. Por consequência, ela prejudica a conectividade e induz a altas perdas de pacotes e atrasos. Então, este trabalho propõe um mecanismo, chamado RCRV, com base em técnicas de predição de mobilidade em termos de posicionamento e da estimativa do tempo de enlace para realçar a tomada de decisão de roteamento em protocolos geográ cos. Além disso, ele utiliza critérios que consideram os comportamentos de mobilidade dos VANTs. Assim, o RCRV possibilita o prolongamento da conectividade nas redes VANTs. O RCRV é um mecanismo que complementa as estratégias de roteamento dos protocolos geográ cos. Desse modo, adicionou-se o RCRV ao protocolo GPSR a m de avaliar os ganhos e benefícios do mecanismo em um protocolo de roteamento geográ co. Simulações foram realizadas com diferentes velocidades e números de VANTs. Os resultados mostraram que o RCRV aumenta a conectividade da transmissão, melhorando a entrega do conteúdo multimídia e a qualidade do vídeo observado pelo usuário.

Diagnóstico de um sistema público de abastecimento de água segundo o usuário: estudo de caso do Conjunto Residencial Beija-Flor – Marituba - PA

Avalia sob a ótica do usuário, o sistema de abastecimento de água da Companhia de Saneamento do Pará, em funcionamento no Residencial Beija-Flor, no Município de Marituba-Pará. Dividiu-se o estudo nas etapas de levantamento de informações do sistema de abastecimento, de pesquisa de campo e de tratamento dos dados, em função da dimensão socioeconômica do consumidor, impressões sobre os serviços da concessionária, formas de uso, sentimento econômico e avaliação das inter-relações entre as variáveis estudadas. Constata que o Residencial é um conjunto habitacional horizontal unifamiliar. Demonstra através de análise dos fatores relacionados a desperdícios e vazamentos de água, que são consideráveis as chances dos hidrômetros residenciais estarem defeituosos. Afere o serviço prestado pela COSANPA como de má qualidade em função do entendimento de que a água fornecida é de má qualidade. Juga-se o preço da água da COSANPA em função da qualidade da água fornecida, aferindo-a como de custo elevado. Detectou-se grande chance de comprometimento ambiental do lençol freático e do solo, assim como de se adquirir doenças transmissíveis pela água, através da rede de distribuição, a quando de ocorrência de falta d’água. Avalia que entre as fragilidades da gestão da Companhia de Saneamento, destaca-se a deficiente comunicação da empresa com os seus usuários e como principal potencialidade detectada na gestão do sistema de abastecimento, se sobressai à rara ocorrência de falta d’água e o fato de haver um significativo índice de hidrometração. Constata que “ouvir” o usuário é uma importante ferramenta de auxilio ao aperfeiçoamento a gestão dos serviços de abastecimento de água.

A utilização do Resource Description and Access (RDA) na criação de registros de autoridade para pessoas, famílias e entidades coletivas

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Bias na Representação de Assunto: Uma Discussão de Oposições Binárias nos Functional Requirements for Subject Authority Data (FRSAD)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Acolhimento na estratégia saúde da família:revisão integrativa

Objective. To review the literature regarding the application of the notion of user embracement and to identify the contributions of this concept for primary health care practices in Brazil.Method. We carried out an integrative review of the literature regarding primary health care. The following databases were searched: LILACS, SciELO, and MEDLINE, covering the period from 2006 to 2010. The following search terms were used in LILACS and SciELO: acolhimento and programa saude da familia and saude. For MEDLINE, the terms user embracement and family health program and health were used. The review was performed in November 2010.Results. We identified 21 articles meeting the inclusion criteria, all of which described studies carried out in Brazil. The articles were divided into three empirical categories: integration and embracement; primary care work process; and evaluation of services. These are complementary categories that converge to two main views of embracement: the first sees embracement as a means of reorganizing the primary health care environment, and the second sees embracement as an attitude towards users. The review also shows that embracement may be a management tool that supports the Unified Health System and is associated with the principles of comprehensiveness and universality.Conclusions. Embracement is able to create a bond between health care workers and users. It promotes self-care, a better understanding of disease, as well as user co-responsibility for treatment. In addition, it facilitates universal access, strengthens multiprofessional and intersectoral work, qualifies care, humanizes practices, and encourages actions to combat prejudice. Nevertheless, the perspective of health care users regarding embracement deserves more attention and should be the focus of future studies.

Library Classifications Criticism: Universality, Poststructuralism and Ethics

We study library classifications criticisms from a poststructuralist and pragmatist point of view that rejects the idea of universality in knowledge organization systems. From this perspective, we analize the seminal texts on library classifications criticisms and conclude that the seek of neutrality in some of these texts is not only an impossible goal but also a contradiction in the representation of different cultures. Therefore, we suggest the commitment with the goals and the recognition of bias in library classifications as an important device for achieving a transcultural ethics in knowledge organization and representation.

Measuring Knowledge Management: A Strategic Approach to Library Information Services

In the study of theoretical trends in Administration, the management of information follows the development of theories of Administration; constant-adaptations are suffered. Information Science area understands and concerns itself with the changes wrought in these endeavour of the knowledge society as new forms of communication and integration. The libraries interact in ways that maximize access to information and facilitate the improvement on their structural environment as strategic approach for your services. The research aims at identifying the requirements and specifications of an information system for knowledge management in the public’s library environment and proposes to achieve a pre-defined structure for the implementation of administration management. The research is conducted with public’s library of the metropolitan region of the North’s Portugal. Portugal libraries are institutions that operate in the social process of their communities reflecting the society and its organic sphere of informational performance. These libraries have developed the organizational theories to make a framework easily for effective management practices and have been using their produced knowledge in the optimization of their actions. In the improvement of systems, theoretical administrative trends become management decisions and result in the ultimate success of the organization. In order to achieve its objectives the study verified an economy based on knowledge management, and its production emphasizes the human capital that permeates the condition of the information in support for the development of communities.

Spectrum Distribution in Cognitive Radio: Error Correcting Codes Perspective

Cognitive radio is a growing zone in wireless communication which offers an opening in complete utilization of incompetently used frequency spectrum: deprived of crafting interference for the primary (authorized) user, the secondary user is indorsed to use the frequency band. Though, scheming a model with the least interference produced by the secondary user for primary user is a perplexing job. In this study we proposed a transmission model based on error correcting codes dealing with a countable number of pairs of primary and secondary users. However, we obtain an effective utilization of spectrum by the transmission of the pairs of primary and secondary users' data through the linear codes with different given lengths. Due to the techniques of error correcting codes we developed a number of schemes regarding an appropriate bandwidth distribution in cognitive radio.

The University and its libraries: reactions and resistance to scientific publishers

This paper addresses the relationship of copyright and the right of universities on scientific production. Information and Communication Technologies (ICTs) are causing many changes in the system of scientific communication, such as the creation of Institutional Repositories that aim to gather scientific production in digital format. The University needs quicker ways of spreading academic production and many questions are emerging due to contexts such as the Open Access movement. Thus, this paper questions the positioning of Universities, especially Public Universities, which despite having policies related to intellectual property to protect the transferring forms of research results to society; many times do not have a positioning or a mechanism that regulates the self-deposit of scientific production in these Institutional Repositories. In order to develop this paper, the following issues are addressed: lack of interest of the University in storing scientific production; reports on the relationship of the library with scientific publishing houses; the participation of faculty members and students in supporting the Free Access movement; and initiatives aimed at greater flexibility of copyright to the context of scientific production. In order to follow the development of these issues at international level, it was opted for qualitative research with non-participating direct observation to carry out the identification and description of copyright policy of important publishers from the ROMEO SHERPA site; therefore, it can be observed that there are changes regarding the publishers' flexibility before self-archiving of authors in open access institutional repositories in their universities. Given this scenario, we presente reflections and considerations that involve the progress and mainly the integration of the University and its faculty members; the institution should recommend and guide its faculty members not to transfer their copyrights, but to defend their right of copy to Institutional Repositories along with Publishing Houses.

The perspective of the teaching of arts projected by H. Gardner and the National Syllabus Parameters - (arts) of elementary school

In a concise way, the article reports part of the Master of Arts dissertation in Music entitled The meaning of the teaching of Arts in H. Gardner's perspective, presented in the IAUNESP [Arts Institute-State of Sao Paulo University] in 2008. Some considerations on the Statutory Law n. 11.769/08 were added to the original text. The produced research had an exploratory nature and a theoretical mark. Some texts by Howard Gardner, by the psychologist Eliane Leao, as well as the text of the National Syllabus Parameters-Art, from the Department of Elementary Education, served as a foundation for this article. The intended aim was to demonstrate to what extent the pedagogical proposition of the Arts Education projected by H. Gardner is similar to the one proposed by the National Syllabus Parameters, and which would the benefits be in this age group of an artistic sensitizing work for the development of the individual's personality.

Comportamento informacional de profissionais no domínio da saúde: um estudo junto ao Hospital de Reabilitação de Anomalias Craniofaciais da Universidade de São Paulo

Pós-graduação em Ciência da Informação - FFC

A mediação da informação na Teoria Arquivística

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Uso da linguagem documentária na busca da informação em bibliotecas universitárias: a perspectiva dos deficientes visuais

Pós-graduação em Ciência da Informação - FFC

Challenges in the therapy of visceral leishmaniasis in Brazil: a public health perspective

Over 3,000 yearly cases of Visceral Leishmaniasis (VL) are reported in Brazil. Brazilian Public Health System provides universal free access to antileishmania therapeutic options: Meglumine Antimoniate, Amphotericin B deoxycholate, and Liposomal Amphotericin B. Even though Amphotericin formulations have been advised for severe disease, this recommendation is mostly based on the opinion of experts and on analogy with studies conducted in other countries. Presently, there are two ongoing multicenter clinical trials comparing the efficacy and safety of the available therapeutic options. Some other issues require further clarification, such as severity markers and the approach to VL/AIDS coinfection. Brazil is facing the challenge of providing access to diagnosis and adequate treatment, in order to avoid VL-related deaths.

Localized periodontal disease induced by bacterial plaque and palatal radicular groove: treatment and considerations

The palatal radicular groove is a morphological tooth defect, which act as local predisposing risk factor favoring accumulation of the bacterial plaque, permitting microbial invasion via root groove way, directly into periodontal structures. A patient diagnosed with palatal radicular groove and a localized periodontal disease was treated by procedures to control bacterial action and procedures to eliminate local predisposing risk factor. To treat the periodontal bone defect a sequelae of periodontal disease, a guided tissue regeneration technique was applied by using allograft and xenograft materials associated with a resorbable demineralized bovine cortical bone membrane. The objective of surgical regenerative procedure was to recover the periodontal tissues nearly as they were before periodontal disease destruction.