On a Virtual Learning Environment

Education in the Information Society is based on asynchronism in time and space, interactivity and virtual restructuring of the educational space. One way to implement such a model of training is web-based - use of the WWW as a virtual environment to access educational materials or to organize the learning process. This work presents a virtual learning environment (VLE) developed for students and made up of modules of dynamically changing content implemented by authorized users. The aim is, through advanced technology for e-learning, testing and self-testing to stimulate students’ activity to focus their potential on the acquisition of the necessary knowledge, skills and competences. The VLE was developed under the Human Resources Development Operational Programme.

Residência multiprofissional, desafios e compromissos na reorientação da formação para o SUS: um estudo na atenção primária

The Health Multiprofessional Residency Program of the Federal University of Rio Grande do Norte (PRMS/UFRN) adopts as guiding keystones the learning process of in-service teaching, the interdisciplinary multiprofessional work and the compliance with the principles and guidelines of the Brazilian Unified Health System (SUS). Although PRMS/UFRN have been idealized with a focus on hospital care, the training process in the insertion of residents in the Primary Health Care (PHC) has an important role because they need to experience all levels of care, taking into account that the educational process through work proposed by the Residence is based on the comprehensiveness of health care. In light of the foregoing, the present research has sought to elucidate the insertion of these residents in PHC services, through a qualitative approach of case study, where data collection was held in two different moments: firstly, a questionnaire was accomplished, through an semi-structured script, with the residents of PRMS/UFRN, Natal Campus; subsequently, the focus group technique was accomplished with a group of nine residents, and data were analyzed from the categorical thematic content analysis. From the process of empirical categorization, categories and subcategories were raised, among which, the positive aspects and potentialities of insertion of residents in PHC. We detected the articulation of actions for promoting, preventing and recovering health; training in comprehensiveness of health care, multiprofessional activities and activities aimed at doing the integration among teaching-service-community. Regarding the difficulties found in this experience, we dealt with the organization and planning of rotation activities, the preceptorship, the process of work found in the Basic Health Units (BHU), in addition to factors external to educational practice, such as the issue of safety within these communities. Accordingly, with this situational diagnosis, we became able to realize that residents have identified the importance of this rotation for their vocational training, since these are inserted in post-graduate programs in hospital care. As an immediate product of this study, we will present a report that will provide a space for discussion and assessment of this rotation by the coordination bodies of PRMS/UFRN, in order to seek organizational and pedagogical adaptations, besides the proposition of qualification courses for the actors involved with this process, aiming the implementation of improvements in the rotation of PHC toward the qualified training of professionals for SUS.

Estratégias de promoção da saúde a partir da escola e da Unidade Básica de Saúde da Família, em Uberlândia (MG)

Health promotion is opposed directly to the biomedical model and established by intersectoral action, with collective and interdisciplinary approaches, considering the subject in their life contexts. Build healthy territories is to promote health, which necessarily includes intersectoral coordination and community mobilization. The health and education sectors can work together to promote health, developing so articulate actions and practices involving the subject in its territory of life and work. This study aimed to design and experience of health promotion strategies in school and Basic Health Units Family in Uberlândia - MG, from intersectoral relationship and community mobilization. The methodological research route was action research, or research intervention, because while researching already applied the ideas to solve problems through collective action. The research began in the Municipal School of Basic Education Prof. Eurico Silva, with the Health Centre's deployment to carry out surveillance and health promotion with active participation of students, involving all subjects of the school, students, teachers and other staff in the context of everyday life, which extrapolates the school walls, reaching the family and social groups in the community to which they belong. The health observatory has the objective existence with the establishment of the working groups, which at first were "healthy eating" and "drug-free world" and later, "dengue". The themes were chosen by the participants of the Health Centre, in which each is involved preferably. The second part of the research started with the approach between the Centre for Health and the health units (UBS and BFHU). The proposal was that the schools and the health nurse unit together should undertake prevention and health promotion, combating Aedes aegypti with intersectoral coordination and community mobilization. For it was crucial the involvement of ACS, ACE, ASE and the nurse coordinator of the Health Unit in creating community networks in the territory. home visits, community mobilization and intersectoral coordination: a training course in all BFHU and UBS teams with the following subjects was conducted. At this stage, were the Health Units that should approach the schools, in order to provide community networks to fight Aedes aegypti in each territory. The results and the scope of this experiment could only be brought to fruition because the Board of Health Surveillance and Care Coordination council of Basic embraced the proposal and helped in its implementation. It remains to continue consolidating this process of work in health units of primary care and the elementary schools, replicate the Health Centre's experience at school. The conclusion of this work is that schools and care facilities to health together with intersectoral coordination and community mobilization supported by community networks, can carry out prevention and health promotion, from a health model that considers the social determinants of health and overcoming hygienist model / sanitarian.

Transposição didática da interação do laser com sistmas biológicos no ensino médio: uma proposta de guia didático para professores

In this dissertation was elaborated an interdisciplinary didactic sequence for the development of Physical concepts involved in the interaction of laser radiation with biological matter in order to make a relation between Physics and other fields of knowledge aiming to enlarge the contextualization of scientific knowledge. The objective was to develop an educational product which theme is “Laser’s Interaction with Biological Tissues”. In this work, basic physical concepts related to laser radiation were presented, its interaction with matter and applicability in the student's daily life, with emphasis on Public Health. The inclusion of the subject in schools was effected through didactic transposition as theoretical foundation and the three pedagogical moments as teaching support. The development of the project involved discussions of scientific knowledge applied in society’s daily life. In the product's design the didactic sequence was projected and the use of varied teaching resources has been proposed, such as videos, texts, experiments, simulators and de Software “Tracker”. The construction of paradidactic material was performed considering different stages of equal importance for a teacher's reflection process. The work prioritizes the alternative conceptions of student, transforming him in a direct agent of the construction of knowledge and this aspect is based on the profile of the Student's Material. Another important point is the evaluation's proposal, this was systematized to be done class after class through building texts, essay questions, presentation of papers, among others activities. The didactic sequence guides the introduction of relevant topics of the students and society’s daily life, the ideas are not closed and in many times the teacher make changes which deem relevant to the teaching for better development of their practice.

Non-equilibrium properties of trapped ions under sudden application of a laser

Coherent quantum-state manipulation of trapped ions using classical laser fields is a trademark of modern quantum technologies. In this work, we study aspects of work statistics and irreversibility in a single trapped ion due to sudden interaction with the impinging laser. This is clearly an out-of-equilibrium process where work is performed through illumination of an ion by the laser. Starting with the explicit evaluation of the first moments of the work distribution, we proceed to a careful analysis of irreversibility as quantified by the nonequilibrium lag. The treatment employed here is not restricted to the Lamb-Dicke limit, what allows us to investigate the interplay between nonlinearities and irreversibility. We show, for instance, that in the resolved carrier and sideband regimes, variation of the Lamb-Dicke parameter may cause a non-monotonic behavior of the irreversibility indicator. Counterintuitively, we find a working point where nonlinearity helps reversibility, making the sudden quench of the Hamiltonian closer to what would have been obtained quasistatically and isothermally.

Vigilância eletrônica no trabalho bancário: do controle consentido ao totalitarismo corporativo

This dissertation addresses the electronic surveillance theme in the banking context. The research that originated it, which was held in an organization called for the fiction name Banco Total, started from the following driving question: How do workers at a bank perceive electronic surveillance at their process of work? The research s main objective was to comprehend how workers perceive electronic surveillance at their process of work. The study adopted an interdisciplinary perspective, having Management as the original field, establishing a dialogue with others disciplines, like Philosophy and Sociology. About its methodology, it s a qualitative research that addressed its object in oral (interviews with live history elements) way. . Ten individuals were interviewed. The analytical process utilized the hermeneutical-dialectics technique.. From the analyses (hermeneutics) of the data, the following themes have emerged: (i) Acquiescence ; (ii) Monitoring; (iii) Time and Motion; (iv) Fear; (v) Interdiction; and (vi) Resistance . From the discussion (dialectic) of the results, this work presents three synthetic propositions that culminate in the following dimensions (i) control; (ii) acquiescence; (iii) corporative totalitarianism. It can be concluded that electronic surveillance is one mechanism of control emerged from the apply of technology at Total Bank; that information technology has been improving the control mechanisms of management theories; and that the imbrications between management and material technology control mechanisms at a context where there is acquiescence by workers contribute for the emergency of corporative totalitarianism components

D’échec au succès au site Cartier-Roberval : regard critique sur les processus de patrimonialisation d’un site historique

La colonie de Jacques Cartier et de Jean-François de la Rocque de Roberval de 1541-1543 au cap Rouge, près de Québec, est aujourd’hui au coeur d’une patrimonialisation sans précédent. L’intérêt récent pour cette première tentative coloniale française en Amérique du Nord, un pan de géohistoire oublié, s’explique par un changement de discours qui s’est dessiné au début du 21e siècle, coïncidant ainsi avec la mise au jour et la mise en valeur du site archéologique Cartier-Roberval. L’histoire prendra donc une nouvelle tournure, il ne sera plus question de tentative mais plutôt d’une colonie à part entière. Le site Cartier-Roberval se voit aujourd’hui aux premières loges d’un grand mouvement commémorateur qui mise et met en valeur sa singularité. L’étude critique sur les processus de patrimonialisation à l’oeuvre sur le site en question permet de mieux comprendre l’ampleur et le dénouement possible du phénomène qui s’opère actuellement.

Creating reusable well-structured pdf as a sequence of component object graphic (cog) elements

Portable Document Format (PDF) is a page-oriented, graphically rich format based on PostScript semantics and it is also the format interpreted by the Adobe Acrobat viewers. Although each of the pages in a PDF document is an independent graphic object this property does not necessarily extend to the components (headings, diagrams, paragraphs etc.) within a page. This, in turn, makes the manipulation and extraction of graphic objects on a PDF page into a very difficult and uncertain process. The work described here investigates the advantages of a model wherein PDF pages are created from assemblies of COGs (Component Object Graphics) each with a clearly defined graphic state. The relative positioning of COGs on a PDF page is determined by appropriate "spacer" objects and a traversal of the tree of COGs and spacers determines the rendering order. The enhanced revisability of PDF documents within the COG model is discussed, together with the application of the model in those contexts which require easy revisability coupled with the ability to maintain and amend PDF document structure.

Low-power high-performance SAR ADC design with digital calibration techniques

This dissertation presents the design of three high-performance successive-approximation-register (SAR) analog-to-digital converters (ADCs) using distinct digital background calibration techniques under the framework of a generalized code-domain linear equalizer. These digital calibration techniques effectively and efficiently remove the static mismatch errors in the analog-to-digital (A/D) conversion. They enable aggressive scaling of the capacitive digital-to-analog converter (DAC), which also serves as sampling capacitor, to the kT/C limit. As a result, outstanding conversion linearity, high signal-to-noise ratio (SNR), high conversion speed, robustness, superb energy efficiency, and minimal chip-area are accomplished simultaneously. The first design is a 12-bit 22.5/45-MS/s SAR ADC in 0.13-μm CMOS process. It employs a perturbation-based calibration based on the superposition property of linear systems to digitally correct the capacitor mismatch error in the weighted DAC. With 3.0-mW power dissipation at a 1.2-V power supply and a 22.5-MS/s sample rate, it achieves a 71.1-dB signal-to-noise-plus-distortion ratio (SNDR), and a 94.6-dB spurious free dynamic range (SFDR). At Nyquist frequency, the conversion figure of merit (FoM) is 50.8 fJ/conversion step, the best FoM up to date (2010) for 12-bit ADCs. The SAR ADC core occupies 0.06 mm2, while the estimated area the calibration circuits is 0.03 mm2. The second proposed digital calibration technique is a bit-wise-correlation-based digital calibration. It utilizes the statistical independence of an injected pseudo-random signal and the input signal to correct the DAC mismatch in SAR ADCs. This idea is experimentally verified in a 12-bit 37-MS/s SAR ADC fabricated in 65-nm CMOS implemented by Pingli Huang. This prototype chip achieves a 70.23-dB peak SNDR and an 81.02-dB peak SFDR, while occupying 0.12-mm2 silicon area and dissipating 9.14 mW from a 1.2-V supply with the synthesized digital calibration circuits included. The third work is an 8-bit, 600-MS/s, 10-way time-interleaved SAR ADC array fabricated in 0.13-μm CMOS process. This work employs an adaptive digital equalization approach to calibrate both intra-channel nonlinearities and inter-channel mismatch errors. The prototype chip achieves 47.4-dB SNDR, 63.6-dB SFDR, less than 0.30-LSB differential nonlinearity (DNL), and less than 0.23-LSB integral nonlinearity (INL). The ADC array occupies an active area of 1.35 mm2 and dissipates 30.3 mW, including synthesized digital calibration circuits and an on-chip dual-loop delay-locked loop (DLL) for clock generation and synchronization.

Proces prekaryzacji pracy - nowe kierunki zmian społeczno-gospodarczych w świecie

Wydział Nauk Politycznych i Dziennikarstwa

Efeitos da microgravidade em plantas de cana-de-açúcar

Sugarcane (Saccharum spp.) is a plant from Poaceae family that has an impressive ability to accumulate sucrose in the stalk, making it a significant component of the economy of many countries. About 100 countries produce sugarcane in an area of 22 million hectares worldwide. For this reason, many studies have been done using sugarcane as a plant model in order to improve production. A change in gravity may be one kind of abiotic stress, since it generates rapid responses after stimulation. In this work we decided to investigate the possible morphophysiological, biochemical and molecular changes resulting from microgravity. Here, we present the contributions of an experiment where sugarcane plants were submitted to microgravity flight using a vehicle VSB-30, a sounding rocket developed by Aeronautics and Space Institute teams, in cooperation with the German Space Agency. Sugarcane plants with 10 days older were submitted to a period of six minutes of microgravity using the VSB-30 rocket. The morphophysiological analyses of roots and leaves showed that plants submitted to the flight showed changes in the conduction tissues, irregular pattern of arrangement of vascular bundles and thickening of the cell walls, among other anatomical changes that indicate that the morphology of the plants was substantially influenced by gravitational stimulation, besides the accumulation of hydrogen peroxide, an important signaling molecule in stress conditions. We carried out RNA extraction and sequencing using Illumina platform. Plants subjected to microgravity also showed changes in enzyme activity. It was observed an increased in superoxide dismutase activity in leaves and a decreased in its activity in roots as well as for ascorbate peroxidase activity. Thus, it was concluded that the changes in gravity were perceived by plants, and that microgravity environment triggered changes associated with a reactive oxygen specie signaling process. This work has helped the understanding of how the gravity affects the structural organization of the plants, by comparing the anatomy of plants subjected to microgravity and plants grown in 1g gravity

Vigilância eletrônica no trabalho bancário: do controle consentido ao totalitarismo corporativo

This dissertation addresses the electronic surveillance theme in the banking context. The research that originated it, which was held in an organization called for the fiction name Banco Total, started from the following driving question: How do workers at a bank perceive electronic surveillance at their process of work? The research s main objective was to comprehend how workers perceive electronic surveillance at their process of work. The study adopted an interdisciplinary perspective, having Management as the original field, establishing a dialogue with others disciplines, like Philosophy and Sociology. About its methodology, it s a qualitative research that addressed its object in oral (interviews with live history elements) way. . Ten individuals were interviewed. The analytical process utilized the hermeneutical-dialectics technique.. From the analyses (hermeneutics) of the data, the following themes have emerged: (i) Acquiescence ; (ii) Monitoring; (iii) Time and Motion; (iv) Fear; (v) Interdiction; and (vi) Resistance . From the discussion (dialectic) of the results, this work presents three synthetic propositions that culminate in the following dimensions (i) control; (ii) acquiescence; (iii) corporative totalitarianism. It can be concluded that electronic surveillance is one mechanism of control emerged from the apply of technology at Total Bank; that information technology has been improving the control mechanisms of management theories; and that the imbrications between management and material technology control mechanisms at a context where there is acquiescence by workers contribute for the emergency of corporative totalitarianism components

Estudo do comportamento plástico, mecânico, microestrutural e térmico do concreto produzido com resíduo de porcelanato

Population growth experienced in major cities, allied to society s need of infra-structure, especially ones related to habitational demands, increases the consumption of construction materials. As a consequence, consumption of natural resources itself. Thus, due to this process, concrete is one of the most produced materials in civil construction. This is also due to the great diversity of its application, easiness in its execution and adequate mechanical performance, as well as low production costs. Following the same tendencies in construction development, the ceramic industry has intensified the production of porcelain ceramic tiles and floors. These are achieved by a fine finishing and receive polishing at the end of the fabrication process. This work researched the use of porcelain residues in polishing for the production of concrete. All of which; due to economical and environmental issues. This process aims to prove adequate destiny for this type of residue, due to environmental issues, incorporating it to the concrete itself; all of which provides economy in consumption of the materials that constitute concrete. Thus, the main characteristics of concrete were investigated through the inclusion of different concentration of the porcelain residue as additional trait element. The residue rates incorporated to the trait varied from 10% to 50% in relation to the cement mass, in the traits with plastic additives and without plastic additives. It is observed that the inclusion of porcelain residue produced a meaningful alteration in the consistency of fresh concrete. This residue has a fine granulometry and it considerably absorbed the water used in the concrete spreading, influencing the way this material is dealt with. Thus, the value of cement striking decreases with the increase of residues present in trait. The maximal incorporation of the residue was of 50%, massively, for the same factor water/initial cement. The use of residues in concrete results in an 40% increase in the compression resistance. It is also proportional to residue concentration of porcelain in the trait. The microstructure was also favored once porosity and concrete absorption decreases with the use of this residue. The parameters demonstrate the quality and durability of the concrete produced with this residue. The use of porcelain residue in concrete composition has not produced meaningful thermal behavior changes. Thermal conductivity, heat capacity and thermal diffusivity have been maintained basically constant

Temporal Control of Ion Channel Activation

Ion channels are a large class of integral membrane proteins that allow for the diffusion of ions across a cellular membrane and are found in all forms of life. Pentameric ligand-gated ion channels (pLGICs) comprise a large family of proteins that include the nicotinic acetylcholine receptor (nAChR) and the γ-aminobutyric acid (GABA) receptor. These ion channels are responsible for the fast synaptic transmission that occurs in humans and as a result are of fundamental biological importance. pLGICs bind ligands (neurotransmitters), and upon ligand-binding undergo activation. The activation event causes an ion channel to enter a new physical state that is able to conduct ions. Ion channels allow for the flux of ions across the membrane through a pore that is formed upon ion channel activation. For pLGICs to function properly both ligand-binding and ion channel activation must occur. The ligand-binding event has been studied extensively over the past few decades, and a detailed mechanism of binding has emerged. During activation the ion channel must undergo structural rearrangements that allow the protein to enter a conformation in which ions can flow through. Despite this great and ubiquitous importance, a fundamental understanding of the ion channel activation mechanism and kinetics, as well as concomitant structural arrangements, remains elusive.

This dissertation describes efforts that have been made to temporally control the activation of ligand-gated ion channels. Temporal control of ion channel activation provides a means by which to activate ion channels when desired. The majority of this work examines the use of light to activate ion channels. Several photocages were examined in this thesis; photocages are molecules that release a ligand under irradiation, and, for the work described here, the released ligand then activates the ion channel. First, a new water-soluble photoacid was developed for the activation of proton-sensitive ion channels. Activation of acid-sensing ion channels, ASIC2a and GLIC, was observed only upon irradiation. Next, a variety of Ru²⁺ photocages were also developed for the release of amine ligands. The Ru²⁺ systems interacted in a deleterious manner with a representative subset of biologically essential ion channels. The rapid mixing of ion channels with agonist was also examined. A detection system was built to monitor ion channels activation in the rapid mixing experiments. I have shown that liposomes, and functionally-reconstituted ELIC, are not destroyed during the mixing process. The work presented here provides the means to deliver agonist to ligand-gated ion channels in a controlled fashion.

Relatório final de estágio pedagógico : relatório final de estágio realizado na Escola Secundária Dona Filipa de Lencastre

O presente relatório surge como uma reflexão de todo o processo de estágio pedagógico, inserido no Mestrado em Ensino da Educação Física nos Ensinos Básico e Secundário, da Faculdade de Motricidade Humana, realizado no ano letivo 2013/2014. O estágio foi desenvolvido no Agrupamento de Escolas Dona Filipa de Lencastre, tendo como base o Guia de Estágio Pedagógico de 2012/2013 onde vêm referidas as competências a adquirir nas quatro áreas de intervenção. No relatório será apresentada uma introdução do mesmo, uma contextualização da escola e do processo de estágio, o trabalho desenvolvido nas três fases de prática pedagógica (planeamento, realização e avaliação), as relações estabelecidas entre as quatro áreas, uma reflexão final e a conclusão. Na área 1-Organização e Gestão do Ensino e da Aprendizagem é referida a relação existente entre planeamento, condução e avaliação nas aulas de Educação Física. Na área 2-Inovação e Investigação Pedagógica desenvolvi um estudo sobre a relação entre a perceção de participação dos Encarregados de Educação na vida escolar dos seus educandos e o desempenho académico dos mesmos e quais as variáveis que influenciam esta perceção de participação. Na área 3-Participação na Escola participei no Desporto Escolar, na modalidade de basquetebol e desenvolvi a atividade de “supervisão do terraço”. Na área 4-Relação com a Comunidade distingo o acompanhamento da Direção de Turma e o desenvolvimento de uma atividade na comunidade envolvente à escola. Em cada uma das áreas é realizada uma reflexão sobre a prática pedagógica, as dificuldades encontradas e as estratégias utilizadas para as ultrapassar. No final, efetuei um balanço sobre o papel que o presente processo de estágio teve na minha formação enquanto futuro docente da disciplina de Educação Física.