966 resultados para multiliteracies and multimodality
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This narrative case study describes an English as an Additional Language teacher’s struggle to understand her young adult learners’ apparent resistance toward multiliteracies pedagogical practices in a college setting. Multiliteracies Pedagogy (New London Group, 1996) advocates the use of digital media, and home languages and culture, to engage diverse youth in designing personally meaningful multimodal texts that can significantly impact learner identity, voice, and agency. This arts-based study uses an innovative sonata-style format to document the making of a class documentary, accompanied by teacher reflections on the video project in the form of poetry, journal excerpts, and classroom dialogue. The sonata form provides a unique methodology for teacher inquiry, allowing the teacher-researcher to explore the ways in which curriculum, pedagogy, and sociocultural influences intersect in the classroom. The study does not end with a clear resolution of the problem; instead, the process of inquiry leads to deeper understandings of what it means to teach in the complex worlds of diverse learners.
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Background: schizophrenia's endophenotipic profile is not only generally complex, but often varies from case to case. The perspective of trying to define specific anatomic correlates of the syndrome has led to disappointing results. In that context, neurophysiologic hypotheses (e. g. glutamatergic hypothesis) and connectivity hypotheses became prominent. Nevertheless, despite their commitment to the principle of denying 'localist' views and approaching the syndrome's endophenotype from a whole brain perspective, efforts to integrate both have not flourished at this moment in time. Objectives: This paper aims to introduce a new etiological model that integrates the glutamatergic and the WM (WM) hypotheses of schizophrenia's etiology. This model proposes to serve as a framework in order to relate to patterns of brain abnormalities from the onset of the syndrome to stages of advanced chronification. Highlights: Neurotransmitter abnormalities forego noticeable WM abnormalities. The former, chiefly represented by NMDAR hypo-function and associated molecular cascades, is related to the first signs of cell loss. This process is both directly and indirectly integrated to the underpinning of WM structural abnormalities; not only is the excess of glutamate toxic to the WM, but its disruption is associated to the expression of known genetic risk factors (e. g., NRG-1). A second level of the model develops the idea that abnormal neurotransmission within specific neural populations ('motifs') impair particular cognitive abilities, while subsequent WM structural abnormalities impair the integration of brain functions and multimodality. As a result of this two-stage dynamic, the affected individual progresses from experiencing specific cognitive and psychological deficits, to a condition of cognitive and existential fragmentation, linked to hardly reversible decreases in psychosocial functioning.
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Transcatheter aortic valve implantation (TAVI) is a novel therapy, which has transformed the management of inoperable patients presenting with symptomatic severe aortic stenosis (AS). It is also a proven and less invasive alternative therapeutic option for high-risk symptomatic patients presenting with severe AS who are otherwise eligible for surgical aortic valve replacement. Patient age is not strictly a limitation for TAVI but since this procedure is currently restricted to high-risk and inoperable patients, it follows that most patients selected for TAVI are at an advanced age. Patient frailty and co-morbidities need to be assessed and a clinical judgment made on whether the patient will gain a measureable improvement in their quality of life. Risk stratification has assumed a central role in selecting suitable patients and surgical risk algorithms have proven helpful in this regard. However, limitations exist with these risk models, which must be understood in the context of TAVI. When making final treatment decisions, it is essential that a collaborative multidisciplinary "heart team" be involved and this is stressed in the most recent guidelines of the European Society of Cardiology. Choosing the best procedure is contingent upon anatomical feasibility, and multimodality imaging has emerged as an integral component of the pre-interventional screening process in this regard. The transfemoral route is now considered the default approach although vascular complications remain a concern. A minimal vessel diameter of 6 mm is required for currently commercial available vascular introducer sheaths. Several alternative access routes are available to choose from when confronted with difficult iliofemoral anatomy such as severe peripheral vascular disease or diffuse circumferential vessel calcification. The degree of aortic valve leaflet and annular calcification also needs to be assessed as the latter is a risk factor for post-procedural paravalvular aortic regurgitation. The ultimate goal of patient selection is to achieve the highest procedural success rate while minimizing complications and to choose patients most likely to derive tangible benefit from this procedure.
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While coronary atherosclerosis is a leading cause of mortality, evaluation of coronary lesions was previously limited to either indirect angiographic assessment of the lumen silhouette or post mortem investigations. Intracoronary (IC) imaging modalities have been developed that allow for visualization and characterization of coronary atheroma in living patients. Used alone or in combination, these modalities have enhanced our understanding of pathobiological mechanisms of atherosclerosis, identified factors responsible for disease progression, and documented the ability of various medications to reverse the processes of plaque growth and destabilization. These methodologies have established a link between in vivo plaque characteristics and subsequent coronary events, thereby improving individual risk stratification, paving the way for risk-tailored systemic therapies and raising the option for pre-emptive interventions. Moreover, IC imaging is increasingly used during coronary interventions to support therapeutic decision-making in angiographically inconclusive disease, guide and optimize procedural results in selected lesion and patient subsets, and unravel mechanisms underlying stent failure. This review aims to summarize current evidence regarding the role of IC imaging for diagnosis and risk stratification of coronary atherosclerosis, and to describe its clinical role for guiding percutaneous coronary interventions. Future perspectives for in-depth plaque characterization using novel techniques and multimodality imaging approaches are also discussed.
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Esta pesquisa teve por objetivo avaliar o desempenho em inglês como L2 de alunos submetidos a atividades em uma abordagem híbrida com o uso de ferramentas da internet na Escola de Aprendizes-Marinheiros do Espírito Santo. Quarenta alunos de duas turmas intactas foram divididos em dois grupos, o experimental (ensino tradicional + ambiente virtual) e o controle (ensino tradicional apenas). O referencial teórico revisou a literatura sobre a abordagem de ensino de línguas estrangeiras baseada em tarefas, metodologias híbridas de ensino de L2, multiletramentos e novas tecnologias. A metodologia de pesquisa usada foi mista com dados qualitativos e quantitativos. O estudo avaliou o impacto de atividades on-line na aprendizagem de L2 e no desenvolvimento da autonomia e do letramento digital. Três tarefas usando variados sítios da internet foram administradas ao grupo experimental, seguidas de um questionário para cada uma, usado para a avaliação qualitativa. A análise quantitativa foi feita por meio de pré e pós-testes analisados estatisticamente. Para esta pesquisa-ação, foram utilizados questionários, entrevistas semiestruturadas e o diário da professora-pesquisadora como instrumentos de coleta de dados. De forma geral, os resultados não mostraram ganhos estatisticamente significativos no tratamento, porém a análise qualitativa das impressões dos alunos-participantes sobre as tarefas realizadas revelou que a abordagem híbrida de ensino de L2 pode ajudar os alunos a desenvolver a autonomia, motivação, um maior contato com a língua-alvo e o letramento digital.
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A evolução dos transportes de mercadorias, em Portugal e na União Europeia, assume uma enorme repercussão na economia global, de modo que a combinação dos vários modos de transporte, com vista à obtenção de ganhos ao nível da eficiência, adquire extrema importância. Os programas europeus de apoio aos transportes, enquadrados na rede transeuropeia de transportes e plataformas logísticas, também contribuem para a otimização do transporte de mercadorias. A importância do transporte ferroviário de mercadorias no eixo Leixões- Salamanca, nomeadamente para as empresas exportadoras e importadoras da região norte e centro, que utilizam meios alternativos ao ferroviário, constitui o principal objetivo desta dissertação. A revisão bibliográfica inclui uma abordagem aos transportes de mercadorias em geral e de forma mais aprofundada aos modos ferroviário e rodoviário na península ibérica, passando pela logística, bem como pela integração de modos: intermodalidade e multimodalidade na rede europeia de transportes e ainda a referência aos portos secos e às plataformas logísticas. Isto permite caraterizar as diferentes empresas operadoras do setor dos transportes de mercadorias e os produtos transacionados, assim como enumerar vantagens e/ou desvantagens do meio de transporte ferroviário face a outros meios, mais concretamente no eixo alvo deste estudo. A metodologia utilizada consiste na análise de informação proveniente de fontes secundárias havendo lugar a uma referência mais detalhada sobre as plataformas logísticas de Leixões e Salamanca, o eixo E-80, o corredor ferroviário nº4 e os programas europeus promotores da eficiência no transporte ferroviário de mercadorias: Marathon, Ferremed e Marco Polo. Para a recolha de informação primária o instrumento adotado foi a entrevista semiestruturada, efetuada a dois representantes da empresa CP-Carga e a um representante da empresa KLog, ambas as empresas ligadas ao setor dos transportes e logística. A análise e tratamento de toda a informação recolhida possibilitam, desde logo, evidenciar as potencialidades do eixo Leixões-Salamanca no que se refere ao transporte ferroviário de mercadorias, delinear recomendações para a sua otimização, bem como efetuar uma análise SWOT. As considerações finais revelam que é imperativo adotar medidas, de forma integrada, para que o seu efeito na potenciação do transporte ferroviário de mercadorias, não só no eixo Leixões-Salamanca, mas também a nível europeu, se afirme como uma verdadeira alternativa a outros modos, particularmente ao domínio rodoviário.
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This study reviews the research on interaction techniques and methods that could be applied in mobile augmented reality scenarios. The review is focused on themost recent advances and considers especially the use of head-mounted displays. Inthe review process, we have followed a systematic approach, which makes the reviewtransparent, repeatable, and less prone to human errors than if it was conducted in amore traditional manner. The main research subjects covered in the review are headorientation and gaze-tracking, gestures and body part-tracking, and multimodality– as far as the subjects are related to human-computer interaction. Besides these,also a number of other areas of interest will be discussed.
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La présente recherche porte sur la traduction de la bande dessinée. Ce sujet, auparavant négligé par les traductologes, commence à susciter l’intérêt des chercheurs à partir les années 80. Toutefois, la plupart des travaux se sont concentrés sur l’aspect linguistique des BD. Ce mémoire, par contre, aborde la bande dessinée comme un texte multimodal. Il s’inscrit ainsi à la croisée des domaines de la traduction et de la multimodalité telle que proposée dans les travaux de Gunther Kress et Theo Van Leeuwen (2001). L’objectif de cette recherche est d’implanter un outil d’analyse pour la bande dessinée qui permettrait de rendre compte des différents modes intervenant dans le texte. Cet outil, conçu pour la présente recherche, a été développé à partir des travaux de Hatim et Mason (1990, 1997) sur les trois dimensions de la situation de communication : transaction communicative, action pragmatique et interaction sémiotique. L’analyse menée ici porte sur la traduction vers le français de la bande dessinée argentine Mujeres alteradas de Maitena Burundarena, parue sous le titre de Les déjantées.
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OBJECTIVE Angiographic C-arm CT may allow performing percutaneous stereotactic tumor ablations in the interventional radiology suite. Our purpose was to evaluate the accuracy of using C-arm CT for single and multimodality image fusions and to compare the targeting accuracy of liver lesions with the reference standard of MDCT. MATERIALS AND METHODS C-arm CT and MDCT scans were obtained of a nonrigid rapid prototyping liver phantom containing five 1-mm targets that were placed under skin-simulating deformable plastic foam. Target registration errors of image fusion were evaluated for single-modality and multimodality image fusions. A navigation system and stereotactic aiming device were used to evaluate target positioning errors on postinterventional scans with the needles in place fused with the C-arm CT or MDCT planning images. RESULTS Target registration error of the image fusion showed no significant difference (p > 0.05) between both modalities. In five series with a total of 25 punctures for each modality, the lateral target positioning error (i.e., the lateral distance between the needle tip and the planned trajectory) was similar for C-arm CT (mean [± SD], 1.6 ± 0.6 mm) and MDCT (1.82 ± .97 mm) (p = 0.33). CONCLUSION In a nonrigid liver phantom, angiographic C-arm CT may provide similar image fusion accuracy for comparison of intra- and postprocedure control images with the planning images and enables stereotactic targeting accuracy similar to that of MDCT.
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INTRODUCTION: Actual 5-year survival rates of 10-18% have been reported for patients with resected pancreatic adenocarcinoma (PC), but the use of multimodality therapy was uncommon in these series. We evaluated long-term survival and patterns of recurrence in patients treated for PC with contemporary staging and multimodality therapy. METHODS: We analyzed 329 consecutive patients with PC evaluated between 1990 and 2002 who underwent resection. Each received a multidisciplinary evaluation and a standard operative approach. Pre- or postoperative chemotherapy and/or chemoradiation were routine. Surgical specimens of 5-year survivors were re-reviewed. A multivariate model of factors associated with long-term survival was constructed. RESULTS: Patients underwent pancreaticoduodenectomy (n = 302; 92%), distal (n = 20; 6%), or total pancreatectomy (n = 7; 2%). A total of 108 patients (33%) underwent vascular reconstruction, 301 patients (91%) received neoadjuvant or adjuvant therapy, 157 specimens (48%) were node positive, and margins were microscopically positive in 52 patients (16%). Median overall survival and disease-specific survival was 23.9 and 26.5 months. Eighty-eight patients (27%) survived a minimum of 5 years and had a median overall survival of 11 years. Of these, 21 (24%) experienced recurrence, 7 (8%) after 5 years. Late recurrences occurred most frequently in the lungs, the latest at 6.7 years. Multivariate analysis identified disease-negative lymph nodes (P = .02) and no prior attempt at resection (P = 0.01) as associated with 5-year survival. CONCLUSIONS: Our 27% actual 5-year survival rate for patients with resected PC is superior to that previously reported, and it is influenced by our emphasis on detailed staging and patient selection, a standardized operative approach, and routine use of multimodality therapy.
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This handbook offers students and researchers compact orientation in their study of intermedial phenomena in Anglophone literary texts and cultures by introducing them to current academic debates, theoretical concepts and methodologies. By combining theory with text analysis and contextual anchoring, it introduces students and scholars alike to a vast field of research which encompasses concepts such as intermediality, multi- and plurimediality, intermedial reference, transmediality, ekphrasis, as well as related concepts such as visual culture, remediation, adaptation, and multimodality, which are all discussed in connection with literary examples. Hence each of the 30 contributions spans both a theoretical approach and concrete analysis of literary texts from different centuries and different Anglophone cultures.
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In this paper, a multimodal and interactive prototype to perform music genre classification is presented. The system is oriented to multi-part files in symbolic format but it can be adapted using a transcription system to transform audio content in music scores. This prototype uses different sources of information to give a possible answer to the user. It has been developed to allow a human expert to interact with the system to improve its results. In its current implementation, it offers a limited range of interaction and multimodality. Further development aimed at full interactivity and multimodal interactions is discussed.
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The paradigm shift from traditional print literacy to the postmodern fragmentation, nonlinearity, and multimodality of writing for the Internet is realized in Gregory L. Ulmer’s electracy theory. Ulmer’s open invitation to continually invent the theory has resulted in the proliferation of relays, or weak models, by electracy advocates for understanding and applying the theory. Most relays, however, remain theoretical rather than practical for the writing classroom, and electracy instruction remains rare, potentially hindering the theory’s development. In this dissertation, I address the gap in electracy praxis by adapting, developing, and remixing relays for a functional electracy curriculum with first-year writing students in the Virginia Community College System as the target audience. I review existing electracy relays, pedagogical applications, and assessment practices – Ulmer’s and those of electracy advocates – before introducing my own relays, which take the form of modules. My proposed relay modules are designed for adaptability with the goals of introducing digital natives to the logic of new media and guiding instructors to possible implementations of electracy. Each module contains a justification, core competencies and learning outcomes, optional readings, an assignment with supplemental exercises, and assessment criteria. My Playlist, Transduction, and (Sim)ulation relays follow sound backward curricular design principles and emphasize core hallmarks of electracy as juxtaposed alongside literacy. This dissertation encourages the instruction of new media in Ulmer’s postmodern apparatus in which student invention via the articulation of fragments from various semiotic modes stems from and results in new methodologies for and understandings of digital communication.