Formação de Formadores e Educação Superior na cibercultura: itinerâncias de Grupos de Pesquisa no Facebook

Esta tese origina-se da pesquisa de doutoramento na Universidade do Estado do Rio de Janeiro UERJ - Proped e tem como objetivo compreender a formação do formador no contexto da cibercultura e como este vem estruturando sua atuação na docência universitária. Este trabalho faz parte do eixo 2 da Pesquisa Institucional A cibercultura na era das redes sociais e da mobilidade: novas potencialidades para a formação de professores. O campo da pesquisa foi a rede social Facebook. Constituíram-se praticantes da pesquisa seis professores-formadores do ProPEd e seus orientandos. A pertinência desta pesquisa inscreveu-se num amplo movimento da perspectiva epistemológica da multirreferencialidade com os cotidianos e pelo método atualizado da pesquisa-formação. A intenção primeira deste trabalho consistiu em mapear as experiências e itinerâncias do formador em suas práticas cotidianas nos espaçostempos da cibercultura. Tencionamos que a sistematização de ambiências formativas articulando o espaço da universidade e das redes sociais criou redes de docência e aprendizagem. Como dispositivos de pesquisa, lançamos mão de oficinas, interações nas redes sociais, conversas, participação nos grupos de pesquisa. A tese revela que a formação do formador na cibercultura forja outros espaçostempos de pesquisa acadêmica e de criação de dispositivos online. Revela também que os usos do digital em rede pelos praticantes da pesquisa fizeram emergir processos de orientação coletiva, de experiências formadoras e de articulação da interface cidadeuniversidade, estabelecendo outros sentidos para a prática pedagógica e para a pesquisa acadêmica

Significando a transicionalidade da sexualidade do cônjuge-cuidador da pessoa idosa em processo demencial para um cuidado terapêutico de enfermagem

A sexualidade compreende muitas dimensões da vida dos indivíduos. Ao longo da vida vai sendo revista, à medida que modificações biopsicossociais acontecem e, ao se pensar em relacionamentos conjugais de longa duração é preciso ponderar que estes casais já passaram por transformações na sua relação conjugal e familiar. Para as pessoas idosas o predomínio de doenças crônicas é maior, com risco para incapacidade e/ou dependência, dentre elas a demência. Cônjuges-cuidadores, vivenciando a transicionalidade da sexualidade podem ressignificar a vida, com o apoio do cuidado terapêutico de enfermagem. O estudo teve o objetivo de compreender a vivência da transicionalidade do cônjuge-cuidador da pessoa idosa em processo demencial, para elaboração de um modelo interpretativo de cuidado terapêutico de enfermagem na perspectiva da Teoria das Transições. A fundamentação teórica se baseia nos pressupostos da Teoria das Transições. Estudo de abordagem qualitativa, com base no referencial metodológico da Teoria Fundamentada nos Dados com 25 participantes distribuídos em quatro grupos amostrais (12 cônjuges-cuidadores, 5 filhos e 8 profissionais de saúde). O cenário investigado foi o Núcleo de Atenção ao Idoso, Universidade do Estado do Rio de Janeiro, RJ, Brasil. A coleta dos dados ocorreu entre maio de 2014 e maio de 2015. A técnica utilizada foi à entrevista intensiva e a análise feita mediante codificação inicial, seletiva e focalizada. O projeto de pesquisa foi aprovado pelo Comitê de Ética da UERJ (Processo n 631.538). Os dados demonstraram que a construção da vida conjugal e a história prévia de sexualidade apreendida e vivenciada interferem na maneira de identificar as mudanças provocadas pelo processo demencial e de se adaptar às repercussões para a sexualidade pessoal e conjugal. O fenômeno evidenciado foi a ressignificação da vida do cônjuge-cuidador da pessoa idosa em processo demencial por meio da transicionalidade da sexualidade conjugal, apontando um cuidado terapêutico de enfermagem, sustentado por sete categorias e dezesseis subcategorias, que articuladas, mostram a ressignificação diretamente ligada à história de vida matrimonial, ao engajamento da família como suporte, além do serviço especializado e a disposição em redimensionar a vida sexual consigo e com o outro. Os resultados apontaram o cuidado como mais uma atribuição, com alterações para saúde e em outras dimensões. Por parte dos profissionais, ainda há um despreparo e abordagem muito superficial da sexualidade entre casais que envelhecem, sobremaneira no contexto da demência; para os cônjuges-cuidadores, as crenças e o imaginário social interferem não só no desenvolvimento da sexualidade possível no contexto de vida atual, como na relação de cuidado e na definição do seu papel social; os filhos descrevem o funcionamento familiar na busca da adaptação ao novo contexto de vida dos pais. A ressignificação existe, a partir de estratégias de enfrentamento e da transposição da sexualidade pelo cuidado à pessoa idosa que adoece. Assim, sustenta-se a tese: A compreensão da vivência da transicionalidade da sexualidade do cônjuge-cuidador da pessoa idosa em processo demencial permite a elaboração de um modelo interpretativo que aponta para um cuidado terapêutico de enfermagem próprio para esse momento de vida.

Capital como Droga, Trabalho como Vício: subjetividade, euforia e depressão na pós-modernidade

O objetivo central deste estudo é examinar as novas formas de subjetivação e de mal-estar engendradas pelas exigências da sociedade do trabalho no contexto do capitalismo contemporâneo. A emergência de uma nova e perversa forma de sociabilidade e de uma subjetividade ligada a ela está intrinsecamente associada às transformações estruturais da sociedade capitalista e suas atuais condições da acumulação de capital. Considerando o caráter social e histórico da sociedade capitalista, do sujeito e da subjetividade, o foco deste trabalho deve ser o sujeito interpelado pela ideologia, clivado pelo inconsciente e individualizado pelo mercado. Busco, portanto, articular pontos teóricos entre os conceitos de ideologia, fetiche e inconsciente referenciados no materialismo histórico e na psicanálise. Ao apresentar o Capital como droga e o Trabalho como vicio, pretende-se de forma alegórica desvelar os impasses e sintomas de um sistema em crise que, apesar das sucessivas tentativas de recuperação, colapsa historicamente, levando sua dinâmica perversa aos limites do insuportável. Ao subordinar a reprodução da vida ao trabalho assalariado, ao mesmo tempo em que para se reproduzir tem sistematicamente de aboli-lo, o capitalismo engendra, na sua crise estrutural, uma das mais sofisticadas formas de dominação, sujeição e exploração: a utilização dos componentes do psiquismo e da subjetivação em nome dos interesses da ordem mercantil. No mundo globalizado pelo mercado, vem aumentando o uso de drogas lícitas, fruto ou não de prescrição médica, como um recurso para inibir todo tipo de mal-estar e impasse psíquico ou reações indesejáveis que possam comprometer a adequação dos indivíduos aos padrões da produtividade, a permanência no ambiente de trabalho, bem como o enfrentamento de conflitos e frustrações inerentes à condição humana. Essa manipulação química da subjetividade potencializa-se na atualidade, expandindo globalmente a drogadicção, no sentido amplo do termo, privando o sujeito da capacidade de pensar. Ela aponta também para as impossibilidades de o sujeito desenvolver suas faculdades ativas e criativas, assim como o diálogo com o outro, o que nos conduz cada vez mais a atitudes de intolerância e violência ou estados compulsivos e depressivos. Ao contrário do que o capitalismo podia propiciar em seu período de ascensão, os modos de inclusão imaginária engendrados pelo capitalismo pós-moderno estão baseados no consumo conspícuo e no gozo imediato, implicando novos contornos para o sofrimento psíquico, agora marcado por transtornos narcísico-identitários e saídas não-representacionais. A partir dessa reflexão, busco a crítica do conceito de sujeito configurado pelo trabalho e pelo psicologismo, que tem contribuído para práticas legitimadoras de exclusão no interior da própria psicologia. Esta crítica representa um compromisso ético-político pela desalienação do sujeito e pela superação do capitalismo, aqui entendido como um sistema que produz mercadorias e viciados em drogas.

Analytical approximations for the modal acoustic impedances of simply supported, rectangular plates.

Coupling of the in vacuo modes of a fluid-loaded, vibrating structure by the resulting acoustic field, while known to be negligible for sufficiently light fluids, is still only partially understood. A particularly useful structural geometry for the study of this problem is the simply supported, rectangular flat plate, since it exhibits all the relevant physical features while still admitting an analytical description of the modes. Here the influence of the fluid can be expressed in terms of a set of doubly infinite integrals over wave number: the modal acoustic impedances. Closed-form solutions for these impedances do not exist and, while their numerical evaluation is possible, it greatly increases the computational cost of solving the coupled system of modal equations. There is thus a need for accurate analytical approximations. In this work, such approximations are sought in the limit where the modal wavelength is small in comparison with the acoustic wavelength and the plate dimensions. It is shown that contour integration techniques can be used to derive analytical formulas for this regime and that these formulas agree closely with the results of numerical evaluations. Previous approximations [Davies, J. Sound Vib. 15(1), 107-126 (1971)] are assessed in the light of the new results and are shown to give a satisfactory description of real impedance components, but (in general) erroneous expressions for imaginary parts.

Volunteer Handbook

This Handbook has been prepared to inform you of the National Ocean Service’s history, philosophy, policies, and expectations of you and the NOS. No volunteer handbook can answer every question, so we hope through regular conversations between you and your supervisor we can continue to add to the Handbook as conditions warrant. We hope this Handbook will help you feel comfortable with us. We depend on you in an ever shrinking workforce - your success is our success. Please do not hesitate to ask questions. Your direct supervisor or Volunteer Coordinator will gladly answer them. We ask that you read this Handbook carefully, and refer to it whenever questions arise. The NOS policies, benefits and rules, as explained herein, may be changed from time to time as business, volunteer legislation, and economic conditions dictate. If and when changes are made, you will be made aware of the changes.

A surveillance strategy for invasive species of concern in deepwater habitats of the Northwestern Hawaiian Islands

This report describes a surveillance strategy to detect deepwater invasive species in the Northwestern Hawaiian Islands. A need for this strategy was identified in the Papahānaumokuākea Marine National Monument Management Plan and the Monument’s Draft Natural Resources Science Plan. This strategy focuses on detecting two species of concern, the octocoral Carijoa riisei and the red alga Hypnea musciformis. Most research on invasive species in the Hawaiian archipelago has focused on shallow water habitats within the limits of conventional SCUBA (0-30 m). Deeper habitats such as mesophotic reefs are much more difficult to access and consequently little is known about the distribution of deepwater invasive species or their impacts. Recent deepwater (>30 m) sightings of H. musciformis and C. riisei, in and near NWHI, respectively, have prompted a call for further research and surveillance of invasive species in deepwater habitats. This report compiles the most up to date information about these two species of concern in deepwater habitats. A literature search and conversations with subject matter experts was used to identify their current distribution, preferred habitat types, optimal detection methods and ways to efficiently sample the vast extent of NWHI. The proposed sampling strategy prioritizes survey effort where C. riisei and H. musciformis are most likely to be found. At coarse spatial scales (tens to hundreds of kilometers), opportunistic observations and distance from the Main Hawaiian Islands, a principal propagule source, are used to identify high-risk islands and banks. At fine spatial scales (meters to tens of kilometers) a habitat suitability model was developed to identify high-risk habitats. The habitat suitability model focused on habitat preferences of C. riisei, since the species is well studied and adequate data exists to map habitats. There was insufficient information to identify suitable habitat for H. muscifomis. Habitat preferences for the algae are poorly understood and there is a lack of data at relevant spatial scales to map those preferences which are known. The principal habitats identified by the habitat suitability model were ledges and the edges of rugose coral reefs, where the shade loving octocoral would likely be found. Habitat suitability maps were developed for seven atolls and banks to aid in survey site selection. The protocol relied on technical divers to conduct visual surveys of benthic habitats. It was developed to increase the efficiency of surveys, maximize the probability of detection, identify important information relevant to future surveys and standardize results. The strategy, model and protocol were tested during a field mission in 2009 at several atolls and islands in NWHI. The field mission did not detect any invasive species among deepwater habitats and much was learned to improve future surveys. Data gaps and improvements are discussed.

Probabilistic fault identification using vibration data and neural networks

Bayesian formulated neural networks are implemented using hybrid Monte Carlo method for probabilistic fault identification in cylindrical shells. Each of the 20 nominally identical cylindrical shells is divided into three substructures. Holes of (12±2) mm in diameter are introduced in each of the substructures and vibration data are measured. Modal properties and the Coordinate Modal Assurance Criterion (COMAC) are utilized to train the two modal-property-neural-networks. These COMAC are calculated by taking the natural-frequency-vector to be an additional mode. Modal energies are calculated by determining the integrals of the real and imaginary components of the frequency response functions over bandwidths of 12% of the natural frequencies. The modal energies and the Coordinate Modal Energy Assurance Criterion (COMEAC) are used to train the two frequency-response-function-neural-networks. The averages of the two sets of trained-networks (COMAC and COMEAC as well as modal properties and modal energies) form two committees of networks. The COMEAC and the COMAC are found to be better identification data than using modal properties and modal energies directly. The committee approach is observed to give lower standard deviations than the individual methods. The main advantage of the Bayesian formulation is that it gives identities of damage and their respective confidence intervals.

Feasibility of damage detection using vibration data in a population of cylinders

The feasibility of vibration data to identify damage in a population of cylindrical shells is assessed. Vibration data from a population of cylinders were measured and modal analysis was employed to obtain natural frequencies and mode shapes. The mode shapes were transformed into the Coordinate Modal Assurance Criterion (COMAC). The natural frequencies and the COMAC before and after damage for a population of structures show that modal analysis is a viable route to damage identification in a population of nominally identical cylinders. Modal energies, which are defined as the integrals of the real and imaginary components of the frequency response functions over various frequency ranges, were extracted and transformed into the Coordinate Modal Energy Assurance Criterion (COMEAC). The COMEAC before and after damage show that using modal energies is a viable approach to damage identification in a population of cylinders.

Growing catfish in the Philippines

The catfish industry in the Philippines is budding and projected to expand in the coming years. This is evident from conversations with active catfish farmers who all hope to be able to expand production, whether backyard or commercial because their present production can hardly supply the demands of buyers. NIFTDC, a fisheries technology and development center in Dagupan City, Philippines, however, says that unless the government has a catfish program, expansion of the industry would be slow. Work on catfish research is only just starting and the culture methods remain to be on a gut feel basis. The farmers are left to survive on their own. Luckily for them, catfish is hardy, easy to grow, and has a growing market. Clearly, if catfish can provide cheap protein for more people, scientific support must be made available for the farmers.

Complex wavelets and shift invariance

Recently we have developed a new form of discrete wavelet transform, which generates complex coefficients by using a dual tree of wavelet filters to obtain their real and imaginary parts. This introduces limited redundancy (2 m:1 for m-dimensional signals) and allows the transform to provide approximate shift invariance and directionally selective filters (properties lacking in the traditional wavelet transform) while preserving the usual properties of perfect reconstruction and computational efficiency with good well-balanced frequency responses. In this paper we analyse why the new transform can be designed to be shift invariant, and describe how to estimate the accuracy of this approximation and design suitable filters to achieve this.

Density of photon states in dye-doped chiral nematic liquid crystal cells in the presence of losses and gain

We calculate the density of photon states (DOS) of the normal modes in dye-doped chiral nematic liquid crystal (LC) cells in the presence of various loss mechanisms. Losses and gain are incorporated into the transmission characteristics through the introduction of a small imaginary part in the dielectric constant perpendicular and along the director, for which we assume no frequency dispersion. Theoretical results are presented on the DOS in the region of the photonic band gap for a range of values of the loss coefficient and different values of the optical anisotropy. The obtained values of the DOS at the photonic band gap edges predict a reversal of the dominant modes in the structure. Our results are found to be in good agreement with the experimentally obtained excitation thresholds in chiral nematic LC lasers. The behavior of the DOS is also discussed for amplifying LC cells providing additional insight to the lasing mechanism of these structures. © 2012 American Physical Society.

An automatic speaker recognition system for intelligence applications

This paper presents an automatic speaker recognition system for intelligence applications. The system has to provide functionalities for a speaker skimming application in which databases of recorded conversations belonging to an ongoing investigation can be annotated and quickly browsed by an operator. The paper discusses the criticalities introduced by the characteristics of the audio signals under consideration - in particular background noise and channel/coding distortions - as well as the requirements and functionalities of the system under development. It is shown that the performance of state-of-the-art approaches degrades significantly in presence of moderately high background noise. Finally, a novel speaker recognizer based on phonetic features and an ensemble classifier is presented. Results show that the proposed approach improves performance on clean audio, and suggest that it can be employed towards improved real-world robustness. © EURASIP, 2009.

Density of photon states in dye-doped chiral nematic liquid crystal cells in the presence of losses and gain.

We calculate the density of photon states (DOS) of the normal modes in dye-doped chiral nematic liquid crystal (LC) cells in the presence of various loss mechanisms. Losses and gain are incorporated into the transmission characteristics through the introduction of a small imaginary part in the dielectric constant perpendicular and along the director, for which we assume no frequency dispersion. Theoretical results are presented on the DOS in the region of the photonic band gap for a range of values of the loss coefficient and different values of the optical anisotropy. The obtained values of the DOS at the photonic band gap edges predict a reversal of the dominant modes in the structure. Our results are found to be in good agreement with the experimentally obtained excitation thresholds in chiral nematic LC lasers. The behavior of the DOS is also discussed for amplifying LC cells providing additional insight to the lasing mechanism of these structures.

Ageing, Adaption and Accessibility: Time for the Inclusive Revolution!

Information and Communication Technology (ICT) is becoming increasingly central to many people’s lives, making it possible to be connected in any place at any time, be unceasingly and instantly informed, and benefit from greater economic and educational opportunities. With all the benefits afforded by these new-found capabilities, however, come potential drawbacks. A plethora of new PCs, laptops, tablets, smartphones, Bluetooth, the internet, Wi-Fi (the list goes on) expect us to know or be able to guess, what, where and when to connect, click, double-click, tap, flick, scroll, in order to realise these benefits, and to have the physical and cognitive capability to do all these things. One of the groups most affected by this increase in high-demand technology is older people. They do not understand and use technology in the same way that younger generations do, because they grew up in the simpler electro-mechanical era and embedded that particular model of the world in their minds. Any consequential difficulty in familiarising themselves with modern ICT and effectively applying it to their needs can also be exacerbated by age-related changes in vision, motor control and cognitive functioning. Such challenges lead to digital exclusion. Much has been written about this topic over the years, usually by academics from the area of inclusive product design. The issue is complex and it is fair to say that no one researcher has the whole picture. It is difficult to understand and adequately address the issue of digital exclusion among the older generation without looking across disciplines and at industry’s and government’s understanding, motivation and efforts toward resolving this important problem. To do otherwise is to risk misunderstanding the true impact that ICT has and could have on people’s lives across all generations. In this European year of Active Ageing and Solidarity between Generations and as the British government is moving forward with its Digital by Default initiative as part of a wider objective to make ICT accessible to as many people as possible by 2015, the Engineering Design Centre (EDC) at the University of Cambridge collaborated with BT to produce a book of thought pieces to address, and where appropriate redress, these important and long-standing issues. “Ageing, Adaption and Accessibility: Time for the Inclusive Revolution!” brings together opinions and insights from twenty one prominent thought leaders from government, industry and academia regarding the problems, opportunities and strategies for combating digital exclusion among senior citizens. The contributing experts were selected as individuals, rather than representatives of organisations, to provide the broadest possible range of perspectives. They are renowned in their respective fields and their opinions are formed not only from their own work, but also from the contributions of others in their area. Their views were elicited through conversations conducted by the editors of this book who then drafted the thought pieces to be edited and approved by the experts. We hope that this unique collection of thought pieces will give you a broader perspective on ageing, people’s adaption to the ever changing world of technology and insights into better ways of designing digital devices and services for the older population.

Spin glass behaviour and spin-dependent scattering in la 0.7Ca 0.3Mn 0.9Cr 0.1O 3 perovskites

The magnetic, electrical and thermal transport properties of the perovskite La 0.7Ca 0.3Mn 0.9Cr 0.1O 3 have been investigated by measuring dc magnetization, ac susceptibility, the magnetoresistance and thermal conductivity in the temperature range of 5-300K. The spin glass behaviour with a spin freezing temperature of 70 K has been well confirmed for this compound, which demonstrates the coexistence and competition between ferromagnetic and antiferromagnetic clusters by the introduction of Cr. Colossal magnetoresistance has been observed over the temperature range investigated. The introduction of Cr causes the "double-bump" feature in electrical resistivity ρ(T). Anomalies on the susceptibility and the thermal conductivity associated with the double-bumps in ρ(T) are observed simultaneously. The imaginary part of ac susceptibility shows a sharp peak at the temperature of insulating-metallic transition where the first resistivity bump was observed, but it is a deep-set valley near the temperature where the second bump in ρ(T) emerges. The thermal conductivity shows an increase below the temperature of the insulating-metallic transition, but the phonon scattering is enhanced accompanying the appearance of the second peak of double-bumps in ρ(T). We relate those observed in magnetic and transport properties of La 0.7Ca 0.3Mn 0.9Cr 0.1O 3 to the spin-dependent scattering. The results reveal that the spin-phonon interaction may be of more significance than the electron (charge)-phonon interaction in the mixed perovskite system. © 2005 Chinese Physical Society and IOP Publishing Ltd.