Utilizando a televisão digital como um meio de comunicação para ambientes interativos reais

This Dissertation aims to provide a communication mechanism between Digital TV viewers and interaction devices, such as robots, for example, placed on the environment from which a TV program is being live broadcasted. Such communication mechanism has the objective to allow viewers controll the Interaction Devices through their TV devices, using the broadcast channel present in Interactive Digital TV systems, and receive data from the devices by the broadcast channel. This system was projected as a middlewaer system where the Interaction Devices in the TV program set are interconnected, creating a Interactive Device Network. With this approach, the system is capable of manage the devices on the network, controlling the flow of coming and leaving elements, in a transparent way for the viewers. The system yet allows the Interaction Devices communicate each other, with a integrated communication channel with no worries about the physical communication layer

Influência da formação de pozolanas com adição de metacaulim em concreto de alta resistência

The need to build durable structures and resistant to harsh environments enabled the development of high strength concrete, these activities generate a high cement consumption, which implies factor in CO2 emissions. Often the desired strength is not achieved using only the cement composition. This study aims to evaluate the influence of pozzolans with the addition of metakaolin on the physical mechanics of high strength concrete comparing them with the standard formulation. Assays were performed to characterize the aggregates according to NBR 7211, evaluation of cement and coarse aggregate through the trials of petrography (NBR 15577-3/08) and alkali-aggregate reaction (NBR 15577-05/08). Specimens were fabricated according to NBR 5738-1/04 with additions of 0%, 4%, 6%, 8% and 10% of metakaolin for cement mortars CP V in the formulations. For evaluation of the concrete hardened in fresh state and scattering assays were performed and compressive strength in accordance with the NBR 7223/1992 and NBR 5739-8/94 respectively. The results of the characterization of aggregates showed good characteristics regarding size analysis and petrography, as well as potentially innocuous as the alkali-aggregate reaction. As to the test of resistance to compression, all the formulations with the addition of metakaolin showed higher value at 28 days of disruption compared with the standard formulation. These results present an alternative to reduce CO2 emissions, and improvements in the quality and durability of concrete, because the fine particle size of metakaolin provides an optimal compression of the mass directly influencing the strength and rheology of the dough

Estudo dos parâmetros de extração de fenol de efluentes aquosos por um tensoativo não iônico

Environmental sustainability has become one of the topics of greatest interest in industry, mainly due to effluent generation. Phenols are found in many industries effluents, these industries might be refineries, coal processing, pharmaceutical, plastics, paints and paper and pulp industries. Because phenolic compounds are toxic to humans and aquatic organisms, Federal Resolution CONAMA No. 430 of 13.05.2011 limits the maximum content of phenols, in 0.5 mg.L-1, for release in freshwater bodies. In the effluents treatment, the liquid-liquid extraction process is the most economical for the phenol recovery, because consumes little energy, but in most cases implements an organic solvent, and the use of it can cause some environmental problems due to the high toxicity of this compound. Because of this, exists a need for new methodologies, which aims to replace these solvents for biodegradable ones. Some literature studies demonstrate the feasibility of phenolic compounds removing from aqueous effluents, by biodegradable solvents. In this extraction kind called "Cloud Point Extraction" is used a nonionic surfactant as extracting agent of phenolic compounds. In order to optimize the phenol extraction process, this paper studies the mathematical modeling and optimization of extraction parameters and investigates the effect of the independent variables in the process. A 32 full factorial design has been done with operating temperature and surfactant concentration as independent variables and, parameters extraction: Volumetric fraction of coacervate phase, surfactant and residual concentration of phenol in dilute phase after separation phase and phenol extraction efficiency, as dependent variables. To achieve the objectives presented before, the work was carried out in five steps: (i) selection of some literature data, (ii) use of Box-Behnken model to find out mathematical models that describes the process of phenol extraction, (iii) Data analysis were performed using STATISTICA 7.0 and the analysis of variance was used to assess the model significance and prediction (iv) models optimization using the response surface method (v) Mathematical models validation using additional measures, from samples different from the ones used to construct the model. The results showed that the mathematical models found are able to calculate the effect of the surfactant concentration and the operating temperature in each extraction parameter studied, respecting the boundaries used. The models optimization allowed the achievement of consistent and applicable results in a simple and quick way leading to high efficiency in process operation.

Estudo de sistemas microemulsionados utilizando água do mar na recuperação avançada de petróleo

Petroleum exists in the nature in certain underground formations where it is adsorbed into the rocks pores. For the conventional recovery methods usually only 30% of the oil is extracted and this can be credited, basically, to three aspects: high viscosity of the oil, geology of the formation and high interfacial tensions between the reservoir s fluids. The enhanced recovery methods use the injection of a fluid or fluids mixture in a reservoir to act in points where the conventional process didn't reach the recovery rates. Microemulsion flooding, considered an enhanced method, has the purpose to desorb the oil from the rock formation and to attain an efficient displacement of the oil emulsion. With this in mind, this work was accomplished with two main objectives: the study of the parameters effect that influence a microemulsified system (surfactant and cosurfactant types, C/S rate and salinity) and the evaluation of displacement efficiency with the microemulsions that showed stability in the rich aqueous area. For the analyzed parameters it was chose the microemulsions composition used in the recovery stage: 25% water, 5% kerosene, 46.7% of butanol as cosurfactant and 23.3% of BC or SCO cosurfactant. The core plugs of Assu and Botucatu sandstones were appraised in porosity and permeability tests and then submitted to the steps of saturation with seawater and oil, conventional recovery with water and enhanced recovery with the selected microemulsions. The Botucatu sandstone presented better recovery parameters, and the microemulsion composed with BS surfactant had larger recovery efficiency (26.88%)

Didática do plurilinguismo: efeitos da intercompreensão de línguas românicas na compreensão de textos escritos em português

This exploratory study aims to present some readings as Doyé (2003), Carrasco Perea (2003), Melo Araújo e Sá (2004), Chavagne (2009) and Alas-Martins (2010; 2011) which helped to confirm some ways for showing that a plurilingual environment can enable a trend in improving the understanding of written texts in the mother tongue, and can collaborate on a better perception of the world around a person with all their different nuances. The study describes the methodology and some results of our doctoral research that resulted in the insertion of the experimental discipline called Intercomprehension of Romanic Languages (ILR) in the curriculum in the city of Natal / RN / Brazil, and it was justified because of high functional illiteracy degree among young people up to 15 years old according to the educational data from IBGE research on 2010. The results were verified through an experimental action-research which was characterized by Lewin (1946); Nunan (1992); Thiollent (1994) and Trip (2005) in two schools: Professoara Terezinha Paulino de Lima (municipal school) and Professora Ana Julia de Carvalho Mousinho (State of Rio Grande do Norte), with 95 students from the final years of primary education. The corpus of this research was subjected to a series of condensed techniques like the nonparametric test from Kruskal and Wallis (1952) and the parametric test ANOVA as an effort to provide statistical significance to the analysis of the results indicated in the book of ILR activities. The research presented some skill views about reading comprehension of written texts according to perspective of Ringbow (1987), Giacobbe (1990), Alarcão (1991; 2009a and 2009b), Corder (1992), Castellotti (2001) and Degache (2003), and the possibilities of transfer these skills for learning Portuguese as pointed out by Meissner, Klein and Stegmann (2004); it indicates a positive trend towards the understanding of LM according to analyzing the scores of written tests and texts by participants in solving tasks

Cinema itinerante no Rio Grande do Norte: aspectos da recepção

In itinerant film projects made in Brazil, the unique experience of watching movies on the big screen is held in open spaces, through the establishment of a contemporary ritual, under which the presence of spectators is primordial. Considering this dynamic of the performance of itinerant cinema, the main objective of this research is to analyze the process of reception of the spectators of the sessions of Cine Sesi Cultural, conducted by the Social Service Industry - Sesi, in Rio Grande do Norte state. The body of research was composed by the audience of the movie sessions of the edition developed in 2010. Analyses were made from the look on the specific audience of open sessions of this cinema project throughout a case study. Theoretical authors of Latin American as Jesus Martin-Barbero, Guillermo Orozco, Eliseo Veron and Nestor Garcia Canclini, which have important theoretical basis for the analysis of research on the cinematographic reception of the spectators, were taken as a basis. In this discussion are associated with contributions from Brazilian authors as Roseli Paulino, Fernando Mascarello, Mauro Wilton Souza, Nilda Jacks and Carolina Escostesguy. Besides the reception study, the research focuses on aspects that relate to and explain the circumstances in which itinerant cinema emerges as an alternative exhibition, for example, the context of the exhibition of films in the country, lack of public policies in the audiovisual sector, and mainly the closing of movie theaters in the inner cities of the country and the consequent migration of these rooms to the malls. Seeking to reduce the existing gap in the studies of the reception of spectators to the cinema in the country, this research presents a deeper analysis of the reception of the public of the itinerant cinema as a contribution to an important database for the diagnosis of projects such as the Cine Sesi Cultural

Avaliação e monitoramento de políticas públicas: criação de um modelo sistêmico aplicado ao Instituto de Assistência Técnica e Extensão Rural do Rio Grande do Norte (EMATER-RN)

The nature of this thesis is interventionist and aims to create an alternative on how to control and evaluate the public policies implementation developed at the Institute for Technical Assistance and Rural Extension of Rio Grande do Norte State. The cenarium takes place in a public institution , classified as a municipality that belongs to the Rio Grande do Norte government and adopts the design science research methodology , where it generates a set of artifacts that guide the development of a computerized information system . To ensure the decisions, the literature was reviewed aiming to bring and highlight concepts that will be used as base to build the intervention. The use of an effective methodology called Iconix systems analysis , provides a software development process in a short time . As a result of many artifacts created by the methodology there is a software computer able of running on the Internet environment with G2C behavior, it is suggested as a management tool for monitoring artifacts generated by the various methods. Moreover, it reveals barriers faced in the public companies environment such as lack of infrastructure , the strength of the workforce and the executives behavior

Avaliação mecânica in vitro utilizando miniplacas quadradas e retangulares do sistema 2.0 mm em fraturas da região anterior de mandíbula

The aim of this study was to comparatively evaluate the mechanical strength of squared and rectangular 2.0 mm system miniplates comparing them to the standard configuration with 2 straight miniplates in stabilizing fractures in the anterior mandible. Ninety synthetic polyurethane mandible replicas were used in mechanical test. The samples were divided into six groups of three different methods for fixation. Groups 1, 2 and 3 showed complete fractures in symphysis, characterized by a linear separation between the medial incisor, and groups 4, 5 and 6 showed complete fractures in parasymphysis with oblique design. Groups 1 and 4 were represented by the standard technique with two straight miniplates parallel to each other. Groups 2 and 5 were stabilized by squared miniplates and groups 3 and 6 were fixed by rectangular design. Each group was subjected to a mechanical test at a displacement speed of 10 mm/min on a universal testing machine, receiving linear vertical load on the region of the left first molar. The values of the maximum load and when displacements reached 5 mm were obtained and statistically analyzed by calculating the confidence interval of 95%. Fixation systems using squared (G2) and rectangular (G3) miniplates obtained similar results. No statistically significant differences with respect to the maximum load and the load at 5 mm displacement were found when compared to standard method in symphyseal fractures (G1). In parasymphysis the fixation method using squared miniplates (G5) obtained results without significant differences regarding the maximum load and the load at 5 mm when compared to the standard configuration (G4). The fixation method using rectangular miniplates (G6) showed inferior results which were statistically significant when compared to the standard configuration (G4) for parasymphysis fractures. The mechanical behavior of the fixation methods was similar, except when rectangular miniplates were used. The fixation methods showed better results with statistical significance in symphyseal fractures

O cuidador familiar do idoso com alzheimer: percepções e sentimentos

The Brazilian Constitution maintains that care for elderly people is a responsibility shared by the state, the family and the society. The politics for the elderly corroborate this understanding and treats home as a privileged place for elderly care taking. This determines the participation of the familiar as a caregiver, but highlights the lack of strategic assistance for the needs of the relative caregiver who feels helplessly and unattended in their responsibility for elderly homecare. In recent years , despite the recently pursuit for health and life quality, there is an increasing incidence of elderly patients with dementia diseases that lead to disability, the most common among then is the Alzheimer´s disease. This disease affects seriously and irreversibly cognition, memory and independence of the elderly, making it dependent on others to perform basic activities of daily life, for all his life. The present study aims to evaluate the perceptions and feelings of family caregivers of elders with Alzheimer on the role of caregiver. This is a qualitative study conducted with family caregivers of seniors with Alzheimer´s, caregivers linked to the group of the Specialized Care Center of the Elderly´s Health, located in Natal / RN. Through semi-structured interview research sought to investigate the perceptions of family caregivers on the role of caregiver, the feelings and the changes in the caregiver´s life since they assumed this role. The data were organized into categories and units of semantic analysis and analyzed using thematic content analysis by Bardin. The reports originated three categories: the perception of the role of caregiver, feelings related to the caregving and consequences of the caregiver role. Perceptions of caregivers of elderly from the requirement of dedication to the care generates losses in personal and professional life for the familiar who assumes this responsibility. The lack of family and social support, aggravates the burden of care for the dependent elderly. Public health politics for the elderly recognize the importance and needs of family caregivers, but not enough to provide support and meet the needs and assist them in supporting their limitations. The research results show the urgent need to take measures to assist the caregivers of seniors with Alzheimer, recognizing them as an action of promotion quality of life and health of the elderly and protection the health of the caregiver

Limites e possibilidades da educação em saúde na estratégia de saúde da família de Pau dos Ferros/RN

A Estratégia Saúde da Família (ESF) apresenta-se como um espaço privilegiado para a efetivação de práticas de educação em saúde orientadas pelo diálogo entre o saber científico e o saber popular, uma vez que é nesse espaço de saúde que profissionais e indivíduos/família se interrelacionam, criam vínculos, dialogam e constroem soluções para o enfrentamento dos problemas de saúde da população. O objetivo geral deste estudo foi analisar os limites e as possibilidades de efetivação da educação em saúde voltada para a coletividade na ESF de Pau dos Ferros/RN. Nesse sentido, buscou-se conhecer as concepções de educação em saúde dos profissionais de nível universitário da ESF; observar onde as práticas de educação eram desenvolvidas; conhecer os conteúdos e metodologias utilizadas para a efetivação das práticas de educação em saúde e caracterizar os espaços onde tais práticas eram desenvolvidas. Trata-se de uma pesquisa qualitativa, de caráter descritivo-exploratório realizada junto a nove equipes localizadas na zona urbana do município. Foram investigados 28 profissionais que atuam nessas equipes, dentre os quais elencamos: quatro médicos, oito enfermeiros e dezesseis cirurgiões dentistas. Fez-se uso da entrevista semiestruturada e da observação baseada em princípios etnográficos. Os dados foram analisados com base na técnica de análise de conteúdo de Bardin. O estudo obedeceu aos aspectos éticos contidos na Resolução 196/96 que regulamenta as Pesquisas Envolvendo Seres Humanos. Os resultados apontam que as concepções e práticas de educação em saúde dos profissionais da ESF são orientadas por uma educação bancária , pautadas pela transmissão e reprodução de conhecimentos. As temáticas são desenvolvidas de forma verticalizada, dissonantes da realidade de vida e saúde dos usuários. As práticas educativas são ofertadas majoritariamente por enfermeiros e estudantes de graduação em estágio na USF. Em sua maioria não são planejadas em equipe, e estão direcionadas à prevenção de doenças, distanciando-se da promoção da saúde. As principais dificuldades apontadas para a efetivação da educação em saúde dizem respeito à dificuldade de trabalhar em equipe, à falta de apoio da gestão, à estrutura física inadequada e a pouca adesão dos profissionais as práticas educativas. Portanto, a educação em saúde praticada na ESF não consegue instrumentalizar os sujeitos para que estes tenham autonomia e possam tornar-se sujeitos de suas vidas, de sua história. A prática educativa centrada na transmissão de conhecimentos ainda é uma realidade presente na ESF, constituindo-se em um desafio a ser superado

A humanização da saúde no cotidiano de usuários da estrategia saúde da família

This research assumes that for changes in health practices directed to an integral care, is crucial humanization, participation and autonomy of service users. In this sense, the research had investigated the issue of humanization involving users of the Family Health Strategy (FHS) in city of Mossoró, having as objectives: to analyze the perceptions of users on humanization in the production of health care in daily of Family Health Strategy, from these perceptions, identify elements featuring humanized and non-humanized in everyday practices related to production of health care; relate perceptions of users about humanization with the notions of extended clinic and social participation present in the National Humanization Policy (NHP); identify difficulties and potentialities in the production of health care from the perspective of humanization. It was a qualitative approach to data collection and it was used the methodology of Network Analysis of Everyday Life (NAEL), which allowed the questioning of health practices through an interactive discussion involving participants subjected. The analysis of data through the technique of content thematic analysis was performed and the results were interpreted related the Extended Clinic references and the users participation, related with the Gift Theory discussed by Marcel Mauss. The results indicated senses humanization linked to affection, reciprocity and honesty, highlighting as essential to humanized practices the trust, bonding, listening, dialogue and accountability. Were also mentioned other elements related to the organization of health services such as access and good functioning of the health services. The difficulties and potentialities show structural deficiencies of the health system and changes in the labor process. The participation of users deconstructing and reconstructing concepts remainder humanization in the production of health care is a key factor for the sedimentation of what is proposed in the HNP. Using the privileged space of the FHE to create more active people and understanding their needs and demands, is possible path to build a participative management

Uma abordagem para promover o alinhamento entre a estratégia de negócio e a tecnologia de informação

Currently with the increase in complexity in doing business, organizations are seeking information systems that help to quickly respond to new demands in the processes of production of products and services. An information system is no longer just a support tool and has become an integral part of doing business. However, in spite of significant technological evolution in recent years, information systems that support business do not respond efficiently to the constant alterations that occur in many organizations. One of the main problems faced by information systems currently is the lack of strategic alignment between business strategy and information technology. The concept of strategic alignment can be defined as a way between business strategies and objectives and the strategies, objectives and functions of information technology in such as way as to contribute to the increase in competitivity of the organization over time. Strategic alignment together with strategic planning are important management instruments. Approaches for operationalizing this alignment are being developed currently but are still in their initial stages due to the fact that it is a relatively new concept in the literature. Another point that needs to be taken into consideration during the strategic alignment is the question of trackability between the business elements and IT. Trackability (Tracking) is necessary for example when one wishes to know exactly which goal defined in the business strategy was left out or not accepted due to a modification made in the IT strategy. Very few proposals present concrete ways supported by software systems in order to obtain strategic alignement while taking into consideration this trackability. Therefore the objective of this work is to propose the creation of a strategic alignment process supported by a software system which is capable of permitting trackability between the organizational objectives and the business processes based on formalization standards defined through a model oriented approach

Uma abordagem dirigida por modelos para gerência de variabilidade e execução de processos de software

This dissertation presents a model-driven and integrated approach to variability management, customization and execution of software processes. Our approach is founded on the principles and techniques of software product lines and model-driven engineering. Model-driven engineering provides support to the specification of software processes and their transformation to workflow specifications. Software product lines techniques allows the automatic variability management of process elements and fragments. Additionally, in our approach, workflow technologies enable the process execution in workflow engines. In order to evaluate the approach feasibility, we have implemented it using existing model-driven engineering technologies. The software processes are specified using Eclipse Process Framework (EPF). The automatic variability management of software processes has been implemented as an extension of an existing product derivation tool. Finally, ATL and Acceleo transformation languages are adopted to transform EPF process to jPDL workflow language specifications in order to enable the deployment and execution of software processes in the JBoss BPM workflow engine. The approach is evaluated through the modeling and modularization of the project management discipline of the Open Unified Process (OpenUP)

Fundamentação cinética da estatística não gaussiana : efeitos em politrópicas

Considering a non-relativistic ideal gas, the standard foundations of kinetic theory are investigated in the context of non-gaussian statistical mechanics introduced by Kaniadakis. The new formalism is based on the generalization of the Boltzmann H-theorem and the deduction of Maxwells statistical distribution. The calculated power law distribution is parameterized through a parameter measuring the degree of non-gaussianity. In the limit = 0, the theory of gaussian Maxwell-Boltzmann distribution is recovered. Two physical applications of the non-gaussian effects have been considered. The first one, the -Doppler broadening of spectral lines from an excited gas is obtained from analytical expressions. The second one, a mathematical relationship between the entropic index and the stellar polytropic index is shown by using the thermodynamic formulation for self-gravitational systems

Uso do gpr na caracterização da pluma de contaminação gerada por hidrocarbonetos a partir de um posto de combustível na praia de Búzios/RN

This work is the application of geophysical methods, using the Ground Penetrating Radar (GPR), with the objective of survey in a subsurface plume of contamination caused by a disabled gas station. The gas station is located on the Búzios beach in southern coast of the state to Rio Grande do Norte in an Area of Environmental Protection called Bonfim-Guaraíra. The interest to develop this work was the presence of contaminants (hydrocarbons) in a well located on the desktop, previously used for the abstraction of groundwater for residents living near the site. Were raised 15 geophysical survey lines totaling 775,48 lifting and installed 4 piezometer, to confirm the contamination and prepare a pluviometric map that helped in indicating the direction of local groundwater flow, thus showing the direction of movement of the probably plume of contamination. From the processing of the GPR lines was possible to identify two likely phases of contamination according to the classification proposed by Azambuja et al 2000, which are called phase absorbed and dissolved phase