Um monitor de metadados de QoS e QoC para plataformas de middleware

Context-aware applications are typically dynamic and use services provided by several sources, with different quality levels. Context information qualities are expressed in terms of Quality of Context (QoC) metadata, such as precision, correctness, refreshment, and resolution. On the other hand, service qualities are expressed via Quality of Services (QoS) metadata such as response time, availability and error rate. In order to assure that an application is using services and context information that meet its requirements, it is essential to continuously monitor the metadata. For this purpose, it is needed a QoS and QoC monitoring mechanism that meet the following requirements: (i) to support measurement and monitoring of QoS and QoC metadata; (ii) to support synchronous and asynchronous operation, thus enabling the application to periodically gather the monitored metadata and also to be asynchronously notified whenever a given metadata becomes available; (iii) to use ontologies to represent information in order to avoid ambiguous interpretation. This work presents QoMonitor, a module for QoS and QoC metadata monitoring that meets the abovementioned requirement. The architecture and implementation of QoMonitor are discussed. To support asynchronous communication QoMonitor uses two protocols: JMS and Light-PubSubHubbub. In order to illustrate QoMonitor in the development of ubiquitous application it was integrated to OpenCOPI (Open COntext Platform Integration), a Middleware platform that integrates several context provision middleware. To validate QoMonitor we used two applications as proofof- concept: an oil and gas monitoring application and a healthcare application. This work also presents a validation of QoMonitor in terms of performance both in synchronous and asynchronous requests

Uma abordagem baseada em aspectos e composição dinâmica para a construção de aplicações adaptativas cientes ao contexto

Ubiquitous computing systems operate in environments where the available resources significantly change during the system operation, thus requiring adaptive and context aware mechanisms to sense changes in the environment and adapt to new execution contexts. Motivated by this requirement, a framework for developing and executing adaptive context aware applications is proposed. The PACCA framework employs aspect-oriented techniques to modularize the adaptive behavior and to keep apart the application logic from this behavior. PACCA uses abstract aspect concept to provide flexibility by addition of new adaptive concerns that extend the abstract aspect. Furthermore, PACCA has a default aspect model that considers habitual adaptive concerns in ubiquitous applications. It exploits the synergy between aspect-orientation and dynamic composition to achieve context-aware adaptation, guided by predefined policies and aim to allow software modules on demand load making possible better use of mobile devices and yours limited resources. A Development Process for the ubiquitous applications conception is also proposed and presents a set of activities that guide adaptive context-aware developer. Finally, a quantitative study evaluates the approach based on aspects and dynamic composition for the construction of ubiquitous applications based in metrics

Infoestrutura: um sistema em nuvem para prover contexto como serviço no cenário de internet das coisas integrado a ambientes veiculares

Through numerous technological advances in recent years along with the popularization of computer devices, the company is moving towards a paradigm “always connected”. Computer networks are everywhere and the advent of IPv6 paves the way for the explosion of the Internet of Things. This concept enables the sharing of data between computing machines and objects of day-to-day. One of the areas placed under Internet of Things are the Vehicular Networks. However, the information generated individually for a vehicle has no large amount and does not contribute to an improvement in transit, once information has been isolated. This proposal presents the Infostructure, a system that has to facilitate the efforts and reduce costs for development of applications context-aware to high-level semantic for the scenario of Internet of Things, which allows you to manage, store and combine the data in order to generate broader context. To this end we present a reference architecture, which aims to show the major components of the Infostructure. Soon after a prototype is presented which is used to validate our work reaches the level of contextualization desired high level semantic as well as a performance evaluation, which aims to evaluate the behavior of the subsystem responsible for managing contextual information on a large amount of data. After statistical analysis is performed with the results obtained in the evaluation. Finally, the conclusions of the work and some problems such as no assurance as to the integrity of the sensory data coming Infostructure, and future work that takes into account the implementation of other modules so that we can conduct tests in real environments are presented.

Educação ambiental como estratégia para inserção da sustentabilidade na formação em odontologia

This thesis proposes environmental education as a strategy for the inclusion of sustainability in the academic education of higher level. The dentistry course has been the object of study, which is justified by the recognition of the need for reflection on environmental issues in the dental academia, initially based on professional experience of the author as a dental surgeon. The aim of this study is to investigate the scientific production of dentistry and its content related to environmental issues, in addition to expanding discussions and reflections on the need to insert environmental education as academic content. With the specific purpose of verifying the amount and analyze the content of scientific articles involving issues related to sustainability in dentistry, Chapter 01 presents research in leading journals portals available on the internet. Works were surveyed where sustainability and related issues were present and placed in a theoretical framework that analyzes the dental service inclusion in the dominant economic model. These procedures are intended to prove the hypothesis that the dental profession does not produce significant scientific content that relates the profession to the environment and sustainability. A literature review was conducted with the statement of dentistry changes from its origins to the front position to the dominant development model and exemplification of the deleterious effects of this model on the environment. In addition, there was a scientific research in journals portals available on the internet and investigated the amount and content of scientific articles involving issues related to sustainability in dentistry. Chapter 02 has the specific purpose of providing content to expand discussions and reflections on the need to insert environmental education in undergraduate courses in dentistry, such as insertion strategy into a new development model guided by sustainability. In this, students questionnaires were given the 8th dentistry course of the period the Federal University of Rio Grande do Norte (UFRN), to be understood environmental perception of learners and were obtained grants for proof of the thesis that environmental education applied dentistry has the potential to make people aware and willing to act practicing and propagating sustainability in their conduct. The overall results indicate little scientific production, as the research and work that relates to dentistry to sustainability and the issues related to the environment have not significantly been present in the syllabus of the undergraduate courses in dentistry, despite the interest shown by survey respondents When such issues are addressed. In this context, it is proposed fostering actions to environmental education, so that dental professionals are engaged in the construction of a new development model based on sustainability, as despite the environmental theme seems to be little explored in the academic and scientific world of dentistry, there interest from students and great potential multiplier for appropriate environmental behavior. After proving the hypothesis that the environment-related content are poorly explored in the academic and scientific world of dentistry, the main conclusions were recognizing the importance of environmental education as an interdisciplinary tool for environmental thematic approach in undergraduate courses dentistry, in addition to implementing this new pedagogical proposal in the professional practice of dentists, given their potential multiplier for environmental knowledge.

Realidade ou ficção? A influência da autopercepção como parceiro romântico e da autoestima na escolha e preferência de parceiros românticos

In general, men and women look for characteristics that can indicate improvement of their reproductive success in their romantic partners. However, partner choice is not only based on what the individual want in a partner, but he/she also takes into consideration how they perceive themselves in a determined environment, in a way that self-perception can change according to the context where the individual is inserted in. Besides the environment, self-esteem can be a factor that modifies romantic partner preferences and the way that people choose these partners for being able to influence how people evaluate themselves. Most of the studies that originate today’s universal standards in the study of romantic partner were conducted with undergraduate students, which may limit the coverage of the conclusions for contemplating people of the same educational level and probably also socioeconomic status (SES). The present research, held in Brazil, where the social inequality rate is high, and part in Canada, country with low social inequality, had as goal verifying romantic partners preferences and choices and self-evaluation as romantic partners in different educational level and SES. Men, mainly of low SES, tend to prioritize social status when looking for a romantic partner while the universal pattern is the preference for physical attractiveness, and women of low SES seem to be aware of this preference when expressing that social status is important for their self-perception. In addition, the results corroborate the influence of the context, selfesteem, and SES in the self-perception as a romantic partner, though the latter two appear to modulate how the is the influence of the context on participants’ perception. Moreover, this research also indicated that the preferences appear to represent the choices for the most important characteristics for each sex, being the other characteristics probably modulated by the quantity of available participants in the environment.

Cinematografando o consumo :as narrativas e práticas culturais dos clientes de videolocadoras de Natal (RN)

The present work is an exercise of analysis of cultural practices related to movie consume by the clients of video rental stores in Natal city (Rio Grande do Norte, Brazil). With sociology of practice as support, especially that one which develops from the seminal works of Anthony Giddens and Pierre Bourdieu, we have searched, from the apprehension of the narratives build up by these actors from the movies they attend, to point the way they build exercises of reflexivity and creativity in the reception of works commonly identified as products of the so called mass culture . This path allows us, in the steps of Nestor Garcia Canclini, researcher in reception within Latin-American context, create and, somehow confirm the hypothesis that consume is also useful for thinking . In order to get to this result, we have carried out a camp research that used instruments and techniques both quantitative and qualitative. After the data analysis we came to the conclusion that consume of movies taken as commercial type and as not very noble in the environment of cultural production, also impels exercises of creativity and social reflexivity

A autonomia da escola pública :um complexo movimento entre a outorga e a construção

The present research to explorer the configurations that come being given to the autonomy of the school, since the decade of 1990. We investigate the implementation of the principle of the autonomy in the public system of education of the State of Pernambuco and, specifically, in four school units and this schools its in the quarters of Stubborn Brasilia Teimosa and Casa Amarela, both located in Recife. We try to know if the implementation of the autonomy of the school is circumscribed in the process of productive reorganization, it was evidenced that the inclusion of this principle in the educational politics - in the scopes national and state - obeyed the dynamics of retraction that, in the neoliberal context, the performance of the State in relation to the public education and the school characterizes, with consequence impact in the investigated schools. From the empirical inquiry it was identified to the occurrence of a movement realized for the social actors of the schools research in direction to the construction of the pertaining to school autonomy; this movement presenting some limits and fragilities. It was evidenced despite this movement varied of intensity in the measure where the social actors of the schools had developed levels of dinamics processes (in greater or minor degree) related with the diverse expressions of democratic management that can occur into the school, such as: elaboration of the Politician-Pedagogical Project, institution and functioning of the Pertaining to school Advice, etc. The set of the carried through analyses made possible that it concluded that, in the context neoliberal and delimited to the investigated time and space, the implementation of the autonomy of the school comes if giving in way to a complex movement of construction

Um estudo da aplicação do conceito de risco na conscientização e conhecimento de estudantes de ensino técnico sobre riscos de segurança e saúde ocupacional em laboratório de soldagem

This dissertation presents a discussion on the level of risk awareness of students who have welding practice in the laboratories at CEFET/PI, both in Teresina and Floriano. Its main goal is to investigate risk factors involving students, teachers and employees that work in these laboratories. It s an empirical survey, held among a certain amount of students from the course in Mechanic Technology. For data analysis, the concept of risk was compared to the students direct measure of perception. The main results suggest the students must be better informed, more risk aware and more competent, in order to avoid accidents. They also point to a strong need for a more formal and effective performance to assure full consciousness about the risks involving the welding practice.

Estudos de algumas ferramentas de coleta e visualização de dados e desempenho de aplicações paralelas no ambiente MPI

The last years have presented an increase in the acceptance and adoption of the parallel processing, as much for scientific computation of high performance as for applications of general intention. This acceptance has been favored mainly for the development of environments with massive parallel processing (MPP - Massively Parallel Processing) and of the distributed computation. A common point between distributed systems and MPPs architectures is the notion of message exchange, that allows the communication between processes. An environment of message exchange consists basically of a communication library that, acting as an extension of the programming languages that allow to the elaboration of applications parallel, such as C, C++ and Fortran. In the development of applications parallel, a basic aspect is on to the analysis of performance of the same ones. Several can be the metric ones used in this analysis: time of execution, efficiency in the use of the processing elements, scalability of the application with respect to the increase in the number of processors or to the increase of the instance of the treat problem. The establishment of models or mechanisms that allow this analysis can be a task sufficiently complicated considering parameters and involved degrees of freedom in the implementation of the parallel application. An joined alternative has been the use of collection tools and visualization of performance data, that allow the user to identify to points of strangulation and sources of inefficiency in an application. For an efficient visualization one becomes necessary to identify and to collect given relative to the execution of the application, stage this called instrumentation. In this work it is presented, initially, a study of the main techniques used in the collection of the performance data, and after that a detailed analysis of the main available tools is made that can be used in architectures parallel of the type to cluster Beowulf with Linux on X86 platform being used libraries of communication based in applications MPI - Message Passing Interface, such as LAM and MPICH. This analysis is validated on applications parallel bars that deal with the problems of the training of neural nets of the type perceptrons using retro-propagation. The gotten conclusions show to the potentiality and easinesses of the analyzed tools.

O Gênero requerimento na perspectiva sociorretórica: análise da produção de graduandos no ambiente acadêmico-administrativo da UFRN

In administrative settings of public institutions, many activities are conducted through writing practices. Concerning this, writing is always connected to an activity we intend to perform. Among those practices, the genre request consists of an instrument through which the requirer addresses to an institution in order to request something under the support of legislation. Considering our work experience in a public institution of higher education, we elected - as object of our research - the genre request produced by undergraduates within the administrative domain of the Federal University of Rio Grande do Norte (UFRN) due to its importance in this context. For this, the theoretical framework adopted refers to the socio-rethorical conception of genre studies, which understands the genre as forms as rhetorically typified action (MILLER, 2009a; SWALES, 1990; BAZERMAN, 2009). Regarding methodology, it is a research associated to a qualitative approach (BODGAN; BIKLEN, 1994; CHIZZOTTI, 2010) whose discussion inserts into the field of Applied Linguistics. The data were generated from samples of requests and their users replies in questionnaires, interviews and verbal protocols of writing. The data analysis is based on the ethnographic methods of genre analysis postulated by Devitt, Reiff and Bawarshi (apud JOHNS et al., 2006). These analyses indicated that the requests are not always fully accomplished due to a lack of comprehension about the genre and its rhetorical situation on the part of the producers. It must probably happen - among other reasons - because these students may not have understood that several factors, such as: context, audience and purpose, affect the text production. We believe that one possibility to make the practice of this genre more efficient is to develop a more simple and practical way of elaborating requests, taking the needs imposed by the rhetorical situation as a basis

A prisão sem muros da Queer Theory nos contos dama da noite e o rapaz mais triste do mundo de Caio Fernando Abreu

In this dissertation, we analyze, in a comparative perspective, the link between the short stories: Dama da Noite‟ and O Rapaz mais triste do mundo‟, of Caio Fernando Abreu. In order to reveal, analyze and establish relevant dialogues with Queer Theory, it‟s important, above all, make a misreading guided in the discursive contextuality of postmodern literature. In order to justify and clarify the many issues that arises in the emblematic relationships of characters that are present in the text and in the cultural context, historically and socially. It also highlights the utterance comparative value identified in the works, given the peculiarities of each one of them, not being possible to classify them as `figures of language` with which the comparison can be cited as an example. In this case, they serve to inspire the ways that may lead us to a better understanding of the parallels created between a world of the binary value and adjectives suggested by society and so well portrayed in the ideas and writings of Caio Fernando Abreu

Grau de conhecimento de pacientes sobre o acidente vascular cerebral e a necessidade do uso de cartilha educativa para orientação fisioterapêutica

Stroke is a neurological dysfunction of vascular origin that causes physical impairments and disabilities. Brazil leads the statistics stroke mortality among Latin American countries, demonstrating still be a neglected disease in this country. The incidence is related to risk factors and still is great misinformation in our country about stroke, treatment and prophylaxis. The aim of this study was to assess the degree of knowledge about stroke and patients need to use educational booklet for physiotherapy. The sample consisted of 53 patients, 22 females and 31 males, mean age 56.2 ± 10.9 years. Patients were evaluated by completing questionnaires, observing the socio-demographic and clinical aspects, neurological assessment, functional assessment, knowledge of pathology and presenting educational booklet. The data were analyzed using the chi-square test. According to the results, it was observed that the patients had not enough knowledge about the terminology, complications and warning signs of stroke, were not aware and did not perform the proper positioning of the limb and transfers, however, were aware and performed the stretching maneuvers. This reveals the need to implement policies that lead to information about stroke population. Following discharge from outpatient physical therapy using educational booklets with guidelines on positioning, stretching exercises and transfer is important in functional rehabilitation and encouraging independence of the individual affected by stroke

Algoritmos e Arquiteturas VLSI para Detectores MIMO com Decisão Suave

The use of Multiple Input Multiple Output (MIMO) systems has permitted the recent evolution of wireless communication standards. The Spatial Multiplexing MIMO technique, in particular, provides a linear gain at the transmission capacity with the minimum between the numbers of transmit and receive antennas. To obtain a near capacity performance in SM-MIMO systems a soft decision Maximum A Posteriori Probability MIMO detector is necessary. However, such detector is too complex for practical solutions. Hence, the goal of a MIMO detector algorithm aimed for implementation is to get a good approximation of the ideal detector while keeping an acceptable complexity. Moreover, the algorithm needs to be mapped to a VLSI architecture with small area and high data rate. Since Spatial Multiplexing is a recent technique, it is argued that there is still much room for development of related algorithms and architectures. Therefore, this thesis focused on the study of sub optimum algorithms and VLSI architectures for broadband MIMO detector with soft decision. As a result, novel algorithms have been developed starting from proposals of optimizations for already established algorithms. Based on these results, new MIMO detector architectures with configurable modulation and competitive area, performance and data rate parameters are here proposed. The developed algorithms have been extensively simulated and the architectures were synthesized so that the results can serve as a reference for other works in the area

Cartilha do silêncio: sob o signo da modernidade e da memória

This research starts from the presupposition that Cartilha do Silêncio(1997), a novel by the Brazilian writer Francisco Dantas, has a double articulated shift. One of the moves is towards the modern experience, with the idea that modernity is filled with contraries, as remarked by Nietzsche; the other is linked to the livelihoods ashore on traditional experiences, which encompasses the notion of memory as individual and collective ownership. The aim here is to analyze such perspective, social and critical issues within the characters' life stories that regards the calling of past as clear example that tradition is not gone, though modern life presents its own signs. Such dynamics gives to the plot a paradoxal feature. This work is mainly grounded on Marshall Berman' s thoughts in All That Is Solid Melts Into Air: The Experience of Modernity (1982) as well as on Antoine Compagnon'sFive Paradoxes of Modernity (1994). Assuming that Francisco Dantas' Novel is set as a split narrative, outcome of social memory originated on individual experiences aside social process and patriarchal family, this research brings into play the concept of memory by Jacques Le Goff in History and Memory (1992) along EcléaBosi's study in Memória e Sociedade: lembranças de velhos (1979). Keen to check how Cartilha do silêncio adjoins modern livelihoods with aesthetics order, the method articulates text and context, literary and social life, according to Antonio Candido'sLiteratura e Sociedade (1965). Thus, after reading the novel, it is possible to notice how the identity of the characters are built throughout the plot and it is also kept against settling on its social context during the transition from patriarchal tradition to modernity, creating a taut mood between both registries.

Crianças e investigação: aspectos teórico-metodológicos e cuidados éticos nas produções dos grupos de pesquisa da UFRN

The concepts of childhood are part of a cultural construction and vary throughout history politically, economically and socially. Nouns such as "childhood" and "child" did not exist as sense of unity in periods prior to modernity, reinforcing their historical character as concepts that have been socially constructed as profess the Historical Social Psychology, theoretical perspective which will support this research. The sociology of childhood distinguishes the terms and changes the approach toward the adult researcher approach with respect to children, aiming to give voice to the child. When it comes to defining the role of children in research, the researcher must take into consideration several relevant criteria such as age, gender, time, listening to the adults close to the children, the level of language and education and which children that will be heard in a group. It is from this discussion, considering the importance of children's participation in the research that are established the purpose of this work, namely, to analyze the theoretical and methodological aspects and ethical guidelines considered in the research process with children, by researchers at the UFRN, presenting as specific objectives: analyze and discuss, from research reports, the adopted ethical procedures and methods used in research with children. Set the goal, it was made a search of the UFRN Research Groups in SIGAA in order to select those which investigate children for participating in our survey. Among the centers of UFRN, we selected the Health Sciences Centre - CCSA, the Humanities Center, Letters and Arts - CCHLA, the Biosciences Center - CB and the Health Sciences Center - CCS, a total of 64 finalized reports to be analyzed. And here it is the observation that the foolish reports were not analyzed for ethical reasons as the guiding of this dissertation is the coordinator of the research group mentioned. In this study, we chose the documentary analysis of the finalized reports from UFRN research projects teachers / researchers as procedure to set up the corpus of the research. Data analysis was performed from the qualitative analysis in the following categories were established: the concept of childhood, concept of child, age of the subjects, the research context, theoretical and methodological care adopted and ethical care. It is hoped that this study will contribute with reflections on the ethical and theoretical and methodological care on research with children. The research showed how some of the results: significant number of reports excluded by repetition, most reports did not bring any closing remarks, no different procedures for children, with rare exceptions, the ethical issue was not mentioned in 50% of reports.