756 resultados para Distance education Audio-visual aids
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This paper describes the use of technology of satellite and mobile communication for quality improving of modern distance education.
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The purpose of this research was to compare the delivery methods as practiced by higher education faculty teaching distance courses with recommended or emerging standard instructional delivery methods for distance education. Previous research shows that traditional-type instructional strategies have been used in distance education and that there has been no training to distance teach. Secondary data, however, appear to suggest emerging practices which could be pooled toward the development of standards. This is a qualitative study based on the constant comparative analysis approach of grounded theory.^ Participants (N = 5) of this study were full-time faculty teaching distance education courses. The observation method used was unobtrusive content analysis of videotaped instruction. Triangulation of data was accomplished through one-on-one in-depth interviews and from literature review. Due to the addition of non-media content being analyzed, a special time-sampling technique was designed by the researcher--influenced by content analyst theories of media-related data--to sample portions of the videotape instruction that were observed and counted. A standardized interview guide was used to collect data from in-depth interviews. Coding was done based on categories drawn from review of literature, and from Cranton and Weston's (1989) typology of instructional strategies. The data were observed, counted, tabulated, analyzed, and interpreted solely by the researcher. It should be noted however, that systematic and rigorous data collection and analysis led to credible data.^ The findings of this study supported the proposition that there are no standard instructional practices for distance teaching. Further, the findings revealed that of the emerging practices suggested by proponents and by faculty who teach distance education courses, few were practiced even minimally. A noted example was the use of lecture and questioning. Questioning, as a teaching tool was used a great deal, with students at the originating site but not with distance students. Lectures were given, but were mostly conducted in traditional fashion--long in duration and with no interactive component.^ It can be concluded from the findings that while there are no standard practices for instructional delivery for distance education, there appears to be sufficient information from secondary and empirical data to initiate some standard instructional practices. Therefore, grounded in this research data is the theory that the way to arrive at some instructional delivery standards for televised distance education is a pooling of the tacitly agreed-upon emerging practices by proponents and practicing instructors. Implicit in this theory is a need for experimental research so that these emerging practices can be tested, tried, and proven, ultimately resulting in formal standards for instructional delivery in television education. ^
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The purpose of this research was to gain an understanding of the study experience of non-American graduate students living outside of the United States and formally engaged in graduate studies in an American Distance Education (DE) Program. These students have been labeled “culturally sensitive.” The nature of this study dictated a qualitative case study methodology using in-depth interviews to collect the data and the hermeneutic approach to understanding and description. This study aims at generating questions and hypotheses that will lead to further investigations that explore the need for cultural and contextual sensitivity in order to provide more equitable and accessible higher education for all. ^ The study attempted to answer the question: What is the study experience of “culturally sensitive” graduate students in American DE Programs? The underlying issue in this study is whether education designed and provided by educators of different socio-cultural backgrounds from that of the students could be content relevant and instructionally appropriate, resulting in educational enhancement and/or prepare students to function adequately in their own communities. ^ Participants in this study (n = 12) were engaged in Master's level (n = 2) and Doctoral level (n = 10) DE programs at American Universities, and were interviewed by E-mail, face-to-face, or using a combination of the two. Data analysis compared interviews and highlighted repetitive patterns. Interview data was triangulated with recent related literature and data from document reviews of archived E-mail conversations between students and their professors. The patterns that emerged were coded and categorized according to generative themes. The following themes were identified in order to analyze the data and confirmed through participant check-back: program benefits, communication, technology, culture and methodology, and reflectivity. ^ Major findings in this study indicate that culture plays an important role in cross-cultural encounters for students in American DE programs vis-à-vis student perceptions as to whether their study needs were being met. Most notably, it was found that the coupling of cultural perceptual differences with transactional distance created a potential barrier to communication that could affect short-term success in American DE programs. To overcome this barrier, students cited good communication as essential in meeting student's needs, especially those communications that were supportive and full of detail and context and from a primary source (ex. directly from the professor). Evaluation was a particularly sensitive issue, especially when students were unaware of their professor's cultural and contextual intricacies and therefore were uncertain about expectations and intended meaning. CSGS were aware of their position and the American rather than global context in which they were participating. Students appear to have developed “extended identities”, meaning that they acculturated in varying degrees in order to be successful in their program but that their local cultural identity was not compromised in any way. For participants from Venezuela access to higher DE has been a limiting factor to participation, due to the high cost of technology and telephone lines for communication. ^
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The purpose of this study is to identify the relationship between the characteristics of distance education students, their computer literacy and technology acceptance and distance education course satisfaction. The theoretical framework for this study will apply Rogers and Havelock's Innovation, Diffusion & Utilization theories to distance education. It is hypothesized that technology acceptance and computer competency will influence the student course satisfaction and explain the decision to adopt or reject distance education curriculum and technology. Distance education delivery, Institutional Support, Convenience, Interactivity and five distance education technologies were studied. The data were collected by a survey questionnaire sent to four Florida universities. Three hundred and nineteen and students returned the questionnaire. A factor and regression analysis on three measure of satisfaction revealed significant difference between the three main factors related to the overall satisfaction of distance education students and their adoption of distance education technology as medium of learning. Computer literacy is significantly related to greater overall student satisfaction. However, when competing with other factors such as delivery, support, interactivity, and convenience, computer literacy is not significant. Results indicate that age and status are the only two student characteristics to be significant. Distance education technology acceptance is positively related to higher overall satisfaction. Innovativeness is also positively related to student overall satisfaction. Finally, the technology used relates positively to greater satisfaction levels within the educational experience. Additional research questions were investigated and provided insights into the innovation decision process.
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For the official publication, see: http://dx.doi.org/10.1016/j.lindif.2016.06.021
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No existe en Cuenca un proyecto de investigación periodística y de producción audiovisual que indague, recopile y presente información sobre aquellas profesiones tradicionales heredadas a través del tiempo y que poco a poco se van perdiendo con miras a extinguirse completamente. Este proyecto, de cierta manera, puede ser innovador, ya que involucra dos áreas: comunicación audiovisual y redacción dentro del periodismo. Se involucran por el hecho de presentar información relevante, a través de un producto final, visual y escrito, que enseñe de quéforma estas profesiones son desarrolladas por diferentes actores humanos, sus contextos y sus procesos, con la intención de servir de apoyo investigativo cultural en el ámbito local y nacional.
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People possess different sensory modalities to detect, interpret, and efficiently act upon various events in a complex and dynamic environment (Fetsch, DeAngelis, & Angelaki, 2013). Much empirical work has been done to understand the interplay of modalities (e.g. audio-visual interactions, see Calvert, Spence, & Stein, 2004). On the one hand, integration of multimodal input as a functional principle of the brain enables the versatile and coherent perception of the environment (Lewkowicz & Ghazanfar, 2009). On the other hand, sensory integration does not necessarily mean that input from modalities is always weighted equally (Ernst, 2008). Rather, when two or more modalities are stimulated concurrently, one often finds one modality dominating over another. Study 1 and 2 of the dissertation addressed the developmental trajectory of sensory dominance. In both studies, 6-year-olds, 9-year-olds, and adults were tested in order to examine sensory (audio-visual) dominance across different age groups. In Study 3, sensory dominance was put into an applied context by examining verbal and visual overshadowing effects among 4- to 6-year olds performing a face recognition task. The results of Study 1 and Study 2 support default auditory dominance in young children as proposed by Napolitano and Sloutsky (2004) that persists up to 6 years of age. For 9-year-olds, results on privileged modality processing were inconsistent. Whereas visual dominance was revealed in Study 1, privileged auditory processing was revealed in Study 2. Among adults, a visual dominance was observed in Study 1, which has also been demonstrated in preceding studies (see Spence, Parise, & Chen, 2012). No sensory dominance was revealed in Study 2 for adults. Potential explanations are discussed. Study 3 referred to verbal and visual overshadowing effects in 4- to 6-year-olds. The aim was to examine whether verbalization (i.e., verbally describing a previously seen face), or visualization (i.e., drawing the seen face) might affect later face recognition. No effect of visualization on recognition accuracy was revealed. As opposed to a verbal overshadowing effect, a verbal facilitation effect occurred. Moreover, verbal intelligence was a significant predictor for recognition accuracy in the verbalization group but not in the control group. This suggests that strengthening verbal intelligence in children can pay off in non-verbal domains as well, which might have educational implications.
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This article focuses on the difficulties encountered in text production students of the first phase of an undergraduate distance learning course at the Federal University of Santa Catarina with regard to working with the gender discourse academic review. The research question that drives this study is: In terms of social experiences with written language system, which factors are inferreds in the analysis of problems of adaptation to the visualized gender in textual production reviews in the academic sphere in the course of Portuguese Language distance? The study developed is anchored in theories of literacy based on Street (1984; 2003; 2009), Hamilton (2000), Barton and Hamilton (2004), among other authors who discuss the new studies of literacy through ethnographic perspectives; as well as the theories of genres of Bakhtin and his Circle (2003 [1952/53]). The results show problems (not) appropriate to the genre, both in terms of compositional configuration as in relation to the thematic content and style and signal distinctions between school and family literacy practices and academic literacy practices, demanding methodological resignifications in addressing gender in the academic sphere. The study contributes to the Applied Linguistics area paying attention to the need to undertake a teaching preparation (Halte, 2008) that includes the experiences of students and their weaknesses, so as to focus on them.
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Tutors´ role in Distance Education is investigated by analyzing and identifying representations built on their work and expressed in their discourses in half-structured interviews (BULEA, 2010). The theoretical and methodological framework is based on Social-Discursive Interactionism (SDI) within its most didactic pathway (BRONCKART, 2003; 2005), Social Interactionism (SI) (BAKHTIN, 1993; 2003). Current paper comprises (a) a synthesis of theoretical and methodological guidelines on the theoretical framework of SDI and on the procedures of human action represented in texts for the construction of a broader perception on tutors´ educational work; (b) theoretical guidelines for a research interview to foreground the better use of such a tool; (c) tutors´ discourse. Data produced in a public university in the state of Paraná, Brazil, are given in the Methodology section. They comprise half-structured interviews with tutors of the Language & Literature Distance Education course. Results of tutors´ deposition evidence the relevance of the tutor in distance education modality in Brazil.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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We propose a novel technique for conducting robust voice activity detection (VAD) in high-noise recordings. We use Gaussian mixture modeling (GMM) to train two generic models; speech and non-speech. We then score smaller segments of a given (unseen) recording against each of these GMMs to obtain two respective likelihood scores for each segment. These scores are used to compute a dissimilarity measure between pairs of segments and to carry out complete-linkage clustering of the segments into speech and non-speech clusters. We compare the accuracy of our method against state-of-the-art and standardised VAD techniques to demonstrate an absolute improvement of 15% in half-total error rate (HTER) over the best performing baseline system and across the QUT-NOISE-TIMIT database. We then apply our approach to the Audio-Visual Database of American English (AVDBAE) to demonstrate the performance of our algorithm in using visual, audio-visual or a proposed fusion of these features.
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In this paper we present the first data from the research conducted to determine the relationship between traditional visual arts and other forms of visual culture closer to the experiences of high school youth. The hypothesis of this research is that while students are nurtured and live primarily with the images provided by the media culture, their textbooks basically refer to the more traditional art images. The research has been limited to a review and analysis of the most common educational materials for teaching visual arts in high school. After the systematization and analysis of the images appeared in textbooks, we have detected three major types: the artistics, those who belong to media culture and others. The most relevant conclusions indicate that: there are hardly any connections between different types of images, they offer a very traditional view of art and they are far removed from the experiences of young book users.
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La démarche scientifique (ou expérimentale) en milieu scolaire nécessite des savoir-faire expérimentaux qui ne s’acquièrent habituellement qu’en présentiel, c’est-à-dire en laboratoire institutionnel où l’enseignant ou le technicien sont présents et peuvent, à tout moment, assister pleinement l’apprenant dans sa démarche d’investigation scientifique et technologique. Ils peuvent l’orienter, le diriger, susciter sa réflexion, faire des démonstrations réelles ou contrôler son expérimentation en lui montrant comment paramétrer les outils d’expérimentation assistée par ordinateur (ExAO). Pour répondre aux besoins de la formation à distance, cette recherche de développement en didactique des sciences et de la technologie propose de mettre à la disposition des apprenants et des enseignants un environnement de laboratoire informatisé, contrôlé et assisté à distance. Cet environnement, axé sur un microlaboratoire d’ExAO (MicrolabExAO), que nous avons nommé Ex@O pour le distinguer, a été testé de manière fonctionnelle, puis évalué en situation réelle par des étudiants-maîtres et des élèves de l’éducation des adultes qui ont pratiqué et expérimenté la démarche scientifique, en situation de laboratoire réel, mais à distance. Pour ce faire, nous avons couplé le logiciel MicrolabExAO à un logiciel de prise en main à distance avec outils audio et vidéo (Teamviewer). De plus, nous avons créé et inséré, dans le logiciel MicrolabExAO, une aide en ligne pour télécharger et faciliter la prise en main à distance. Puisque cet environnement Ex@O permet de multiplier les contacts des apprenants avec une expérimentation concrète, ce prototype répond bien à l’un des objectifs du Programme de formation de l’école québécoise (PFEQ) qui est de rendre l’apprenant plus actif dans ses apprentissages. Et parce que ce premier prototype d’environnement Ex@O permet d’effectuer des activités en laboratoire à distance, nous avons pu vérifier qu’il met aussi l’accent, non seulement sur les savoirs, mais également sur les savoir-faire expérimentaux en sciences et technologie, traditionnellement développés dans les locaux des laboratoires institutionnels. Notons ici que la démarche expérimentale s’acquiert très majoritairement en laboratoire en pratiquant, souvent et régulièrement, le processus inductif et déductif propre à cette démarche. Cette pratique de la démarche expérimentale, à distance, avec la technologie Ex@O qui l’accompagne, nous a permis de vérifier que celle-ci était possible, voire comparable à la réalisation, pas-à-pas, d’un protocole expérimental effectué dans un laboratoire institutionnel.
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Este articulo trata de exponer la utilización del archivo audiovisual del grupo de investigación IDECA como herramienta docente y como la utilización de un archivo digital de estas características se articula como una vía practica para mejorar la adquisición de competencias en determinadas áreas del conocimiento por parte del alumnado universitario. El empleo del archivo IDECA como herramienta docente, se articula como un medio excelente para la mejora de los conocimientos del alumno por medio de la gestión autónoma del aprendizaje por parte del alumno o del aprendizaje tutorizado por el profesorado