974 resultados para Internet studies


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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Ciência da Informação - FFC

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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The use of wireless local area networks, called WLANs, as well as the proliferation of the use of multimedia applications have grown rapidly in recent years. Some factors affect the quality of service (QoS) received by the user and interference is one of them. This work presents strategies for planning and performance evaluation through an empirical study of the QoS parameters of a voice over Internet Protocol (VoIP) application in an interference network, as well as the relevance in the design of wireless networks to determine the coverage area of an access point, taking into account several parameters such as power, jitter, packet loss, delay, and PMOS. Another strategy is based on a hybrid approach that considers measuring and Bayesian inference applied to wireless networks, taking into consideration QoS parameters. The models take into account a cross layer vision of networks, correlating aspects of the physical environment, on the signal propagation (power or distance) with aspects of VoIP applications (e.g., jitter and packet loss). Case studies were carried out for two indoor environments and two outdoor environments, one of them displaying main characteristics of the Amazon region (e.g., densely arboreous environments). This last test bed was carried out in a real system because the Government of the State of Pará has a digital inclusion program called NAVEGAPARÁ.

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This paper proposes a discursive analysis of teachers‘s blogs , particularly those accessible from the MEC site : http://portaldoprofessor.mec.gov.br/links.html . The aim is to analyze , dialogically, based on Bakhtinian discourse studies the speech of Portuguese language teachers on the internet , and to investigate aspects of the discourse genre blog , this specialized sphere of circulation :whether it is a means of exposing themselves, whether they are professional media extent , reflect about how to produce the identity of the Portuguese language teachers in such discourse . The axes of reflection on identity , in this case , are four: the subject‘sthe discourse about themselvesand their peers , how the subject shows itself tothe analyst - researcher in dialogue with others in history ( teachers , students , interested in issues of language , official documents ), how it can be seen by the analyst - researcher considering using resources ( videos , photos , literary genres, etc. ), how it is seen by those who comment your say

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The objective of this study is a explanation about the action possibilities of the Public Relations professional as a manager of communication between the musical celebrity and his publics. For this purpose, a bibliographical research was made about Internet question like his history, the evolution of Web 2.0 and even about different kinds of virtualization, introducing with interactivity. Other researches was been made like social culture topics and even the studies of Public Relations actions in the artistic scene, acting like a manager of different publics relationships in the virtual contacts. A study case with the virtual communication tools employed in the career of Hugo e Tiago, one of the country artists in Brazil, is also in this studies. Otherwise, the study explains about the different ways of Public Relations actions, his upgrades along with the new communication tools and his new types of making relations with more and more different publics. Working with new strategies and keeping his objectives in the organization and public relationship, Public Relations brands a new vision to this type of communication professional, who becomes even more important in the actual organizations scenario

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OBJETIVO: Este estudo teve por objetivo a adaptação transcultural do Internet Addiction Test (IAT) para o idioma português. MÉTODOS: O trabalho consistiu em cinco etapas: (1) tradução; (2) retradução; (3) revisão técnica e avaliação da equivalência semântica por profissionais da área; (4) avaliação do instrumento por uma amostra de estudantes, avaliando-se o seu grau de compreensão; e (5) análise da consistência interna por meio do coeficiente alfa de Cronbach. RESULTADOS: O instrumento foi traduzido e adaptado para o idioma português, demonstrando ser facilmente compreendido e apresentando valor de consistência interna de 0,85. CONCLUSÃO: O instrumento encontra-se traduzido e adaptado para o português e apresenta consistência interna satisfatória. São necessárias análises de equivalência de mensuração e reprodutibilidade.

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Innerhalb der vorliegenden Untersuchung geht es um die Verknüpfung von Medienbildung, homosexueller Sozialität und der Methodik der Biografieanalyse. Ausgangsbasis ist eine sozialkonstruktivistische Sichtweise auf Geschlecht und (Homo-) Sexualität, wobei eine sozio-historische Kontextualisierung von Homosexualität unter Berücksichtigung von Diskriminierung erfolgt. Im Fokus steht der Coming-out-Prozess, der zwischen Zeigen und Verstecken changiert und mittels des Mediums Internet einen Raum findet, indem neue Bestimmungen homosexueller Identitäten und Formen homosexueller Sozialität möglich werden. Kommunikative Aspekte des Internets werden ausführlich expliziert und durch die strukturelle Medienbildungstheorie nach Marotzki (2009) ergänzt, um mögliche verbundene Bildungsprozesse zu beschreiben. Innerhalb dieser Theorie werden vier kritische Reflexionshorizonte (Wissensbezug, Handlungsbezug, Grenzbezug, Biografiebezug) entfaltet und auf die Artikulations- und Präsentationsmöglichkeiten des Internets bezogen. Deutlich wird, dass das Internet Spielräume für Identitäten bietet, denen Potenziale für reale Identitätskonstruktionen inneliegen. Fassbar werden diese Potenziale durch das medienpädagogische Konstrukt der Medienbiografie, sowie Konzepte der erziehungswissenschaftlichen Biografieforschung (Konstrukt Bildung nach Marotzki, 1990a; Konstrukt Sexualbiografie nach Scheuermann, 1999; 1995). Empirisch orientiert sich die Studie an Methodologie und Methodik der Biografieforschung, Grounded Theory (Glaser/Strauss, 1967) und dem narrationsstrukturellen Verfahren nach Schütze (1984, 1983). Konkret wird auf folgende Forschungsfragen referiert: Wie gestalten sich Lern- und Bildungsprozesse für männliche Homosexuelle in digitalen Medienwelten? Welche Möglichkeiten und Gestaltungschancen gibt es für die Repräsentation des (sexuellen) Selbst im Medium Internet? Welche Auswirkungen haben diese virtuellen Prozesse auf die real gelebte Biografie und das Selbst- und Weltverhältnis der einzelnen Homosexuellen? Durch Rekonstruktion von vier Fallbeispielen werden Möglichkeiten des Internets für die Repräsentation und Identitätsgestaltung von männlichen Homosexuellen präsentiert, bei denen die Gestaltbarkeit von Konstruktionen sexueller Identität und die Problematik der Subjekt-Umwelt-Relation deutlich werden. Im weiteren erfolgt ein kontrastierender Vergleich der Einzelfälle (Dimensionen: Familie, Peer Group, sexualbiografische Entwicklung, Medienbildungsprozesse, biografische Fallstruktur), die einer anschließenden Konstruktion von vier idealtypischen Prozessvarianten der sexualbiografischen Identitätsentwicklung zugeführt werden. Vier verschiedene Möglichkeiten des Internets als Präsentationstraum der eigenen Sexualität und Konstruktionen homosexueller Identität lassen sich somit skizzieren (Virtualitätslagerung, Zweckorientierung, reflexive Balancierung, periodische Selbstaktualisierung). Tentative Bildungs- und Identitätsprozesse sind also in der Virtualität des Internets möglich und können rekursiv-zirkulär auf reale Identitätsentwicklungen und reale Zugänge zu spezifischen sozialen Gruppen einwirken.

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National and international studies demonstrate that the number of teenagers using the inter-net increases. But even though they actually do have access from different places to the in-formation and communication pool of the internet, there is evidence that the ways in which teenagers use the net - regarding the scope and frequency in which services are used as well as the preferences for different contents of these services - differ significantly in relation to socio-economic status, education, and gender. The results of the regarding empirical studies may be summarised as such: teenager with low (formal ) education especially use internet services embracing 'entertainment, play and fun' while higher educated teenagers (also) prefer intellectually more demanding and particularly services supplying a greater variety of communicative and informative activities. More generally, pedagogical and sociological studies investigating "digital divide" in a dif-ferentiated and sophisticated way - i.e. not only in terms of differences between those who do have access to the Internet and those who do not - suggest that the internet is no space beyond 'social reality' (e.g. DiMaggio & Hargittai 2001, 2003; Vogelgesang, 2002; Welling, 2003). Different modes of utilisation, that structure the internet as a social space are primarily a specific contextualisation of the latter - and thus, the opportunities and constraints in virtual world of the internet are not less than those in the 'real world' related to unequal distribu-tions of material, social and cultural resources as well as social embeddings of the actors involved. This fact of inequality is also true regarding the outcomes of using the internet. Empirical and theoretical results concerning forms and processes of networking and commu-nity building - i.e. sociability in the internet, as well as the social embeddings of the users which are mediated through the internet - suggest that net based communication and infor-mation processes may entail the resource 'social support'. Thus, with reference to social work and the task of compensating the reproduction of social disadvantages - whether they are medial or not - the ways in which teenagers get access to and utilize net based social sup-port are to be analysed.

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L’internet est reconnue de manière générale comme un instrument de recherche valable. Bien que les langues africaines ne soient pas bien représentées sur internet il y a assez d’informations qui peuvent être découvertes dans la recherche sur terrain virtuel. Des petits vocabulaires et des descriptions de plusieurs langues africaines sont écrits par des auteurs individuels, des départements d’universités et des agences de voyages. Des textes en langues africaines sont en majorité publiés par des missionaries ou des ONGs. Ces données tendent à refléter les variantes standards des langues utilisées. Ce sont des contributions dans des forums qui sont témoins d’un langage proche de la langue parlée. On recherche les données linguistiques en utilisant les noms des langues respectives combinés avec des termes tels que “langue”, “grammaire”, “cours” ou le nom d’un auteur comme terme de recherche. Des chaînes de mots (en guillemets) qui sont très courantes dans le langage parlé et/ou écrit peuvent constituer de bons termes de recherche pour trouver des textes ou des contributions dans des forums.

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Leiden’s Faculty of Arts invited on May 20th the members of the ELNWS for a workshop on e-learning for Non-Western studies. The aim of the workshop was to take a closer look at the possibilities of e-learning as a means of realizing co-operation between our universities. During our discussions, and looking back on the past academic years, we attempted to position our own academic community on the Internet, in the sense of 'looking for, finding and putting it on, or giving it a location' in the omnipresent Internet. In order to investigate the ways in which e-learning can be used as a tool to stimulate European co-operation within the field of Non-Western studies, Leiden’s Faculty of Arts rewards one initiative between two or more European universities of the ELNWS with financial support.