La rapide progression des technologies sans fil au cours de ces dernières années a vu naître de nouveaux systèmes de communication dont les réseaux véhiculaires. Ces réseaux visent à intégrer les nouvelles technologies de l’information et de la communication dans le domaine automobile en vue d’améliorer la sécurité et le confort sur le réseau routier. Offrir un accès Internet aux véhicules et à leurs occupants peut sans doute aider à anticiper certains dangers sur la route tout en rendant plus agréables les déplacements à bord des véhicules. Le déploiement de ce service nécessite que des messages soient échangés entre les véhicules. Le routage constitue un élément crucial dans un réseau, car définissant la façon dont les différentes entités échangent des messages. Le routage dans les VANETS constitue un grand défi car ces derniers sont caractérisés par une forte mobilité entraînant une topologie très dynamique. Des protocoles ont été proposés pour étendre Internet aux réseaux véhiculaires. Toutefois, la plupart d’entre eux nécessitent un coût élevé de messages de contrôle pour l’établissement et le maintien des communications. Ceci a pour conséquence la saturation de la bande passante entrainant ainsi une baisse de performance du réseau. Nous proposons dans ce mémoire, un protocole de routage qui s’appuie sur des passerelles mobiles pour étendre Internet aux réseaux véhiculaires. Le protocole prend en compte la mobilité des véhicules et la charge du réseau pour l’établissement et le maintien des routes. / The fast progression of wireless technologies has motivated the emergence of new communications system called VANETS (Vehicular Adhoc Networks). VANETS enable vehicles on the roadway to communicate with each other and with road infrastructure using wireless capabilities. The applications of VANETS include improving safety and comfort on the road. For example, by providing Internet to vehicles, traveling can be safer and more comfortable. To provide Internet connectivity, messages need to be exchanged between the vehicles. However, it is hard to design an efficient routing protocol for connecting vehicles to Internet with a reasonable cost due to high mobility in VANETS. Although, several existing routing protocols have been proposed in the open literature to extend Internet to VANETS, they generate considerable overhead. This leads to unfairly consumption of bandwidth decreasing network performance. We design a routing protocol to connect vehicles to Internet through mobile gateways with the objective to make efficient use of the network bandwidth. Indeed, the protocol significantly reduces the communication overhead required to establish and maintain the routes relying on the mobility of the gateways and the network’s load.

The thesis introduces one of the most important personalities of the Czech musical pedagogy of the last century - professor PaedDr. Jaroslav Herden, CSc. Its aim of the thesis is to present the wide range of pedagogical activities he practiced. The thesis consists of six main chapters dealing with Herden's life with the focus on his musical activities, his education and professional growth. The chapters analyse Herden's experience at the Faculty of Education at Charles University in Prague and his publication and broadcast activities. This work also mentions the Summer School of Music, as Herden was its founder. The last part of the thesis focuses on the heritage of this extraordinary personage.

The thesis deals with the phenomenon called breaking news in a continuous broadcast of news stations. It consists of theoretical and practical part. The main aim of the theoretical part is to describe the specifics of television news and their transformation caused by the introduction of continuous broadcast. In this context, the technical means used in Czech TV that allow the audience to watch the news live will be described in detail. The main aim of the practical part is to describe the mentioned phenomenon in connection with a specific event - the shootings in Uhersky Brod in February 2015. The main attention of the quantitative research will be focused on the continuous broadcast of CT24 on 24th February 2015 in order to obtain relevant results, which will illustrate the proportion of the information related to the shooting in the CT24 broadcast. The amount of the concrete news reports will be analysed as well. All the gathered results will be then presented in the summary. Powered by TCPDF (www.tcpdf.org)

The master thesis called "A comparative study of contemporary morning broadcast Radiozurnal and Radio Impuls" presents broadcasting comparation of this two radio stations. Both of them are the most listened stations in the Czech Republic, they are also the biggest competitors. Radiozurnal is Czech radio's public station and Radio Impuls is commercial station, therefore, thesis is based on the assumption that their program is different. The main part of this master thesis is content analysis, which was made between two weeks in the end of January and in the beginning of February 2019. The morning broadcast of both stations was analyzed on the basis of three reasearch questions, in terms of thematic focus, local focus and genre focus. The analysis includes a comparasion of language style. The research results are compared and shown in charts and graphs. Based on literature, the master thesis also defines specific features of radio broacasting and its genre forms. The specific methodology of morning broadcasting of both station is based on interviews with the editors.

Comme dans plusieurs pays africains, la république de Guinée à connu une crise politique et sociale majeure en 2007, une crise qui a fait de nombreuses victimes. En janvier 2007, des milliers de Guinéens descendent dans les rues pour dénoncer la dégradation croissante de la situation économique et sociale du pays et les ingérences répétées du président Lansana Conté dans les affaires judiciaires. Notre sujet de recherche a porté sur le traitement de cette crise par la presse guinéenne. La méthode d’analyse de contenu adoptée nous a permis d’analyser le positionnement des journaux face à la crise, la place consacrée au sujet, le point de vue adopté dans les articles etc. L’analyse a permis de tirer des conclusions sur la médiatisation de l’évènement, sur l’orientation de son traitement journalistique ainsi que les prises de position politiques, idéologiques et émotionnelles des journalistes et des journaux. / As in many African countries, the Republic of Guinea experienced a major political and social crisis in 2007, a crisis that has caused many casualties. In January 2007, thousands of Guineans took to the streets to denounce the increasing deterioration of the economic and social situation of the country and the repeated interference of President Lansana Conté in court cases. Our research topic focused on the treatment of this crisis by the Guinean press. The content analysis method adopted allowed us to analyze the positioning newspapers deal with the crisis, instead devoted to the subject, the view adopted in articles etc. The analysis to draw conclusions on the media coverage of the event, on the orientation of its journalistic treatment and the acquisition of political, ideological and emotional position of journalists and newspapers.

Cette thèse étudie les problèmes d’optimisation bi-objectifs des communications dans les réseaux de capteurs hétérogènes du point de vue de la portée de transmission. Le premier critère considéré est nécessairement l'énergie qu’il s’agit d'économiser pour maximiser la durée de vie du réseau. Le second critère, primordial dans le cas des applications en temps réel, est le délai d'acheminement des données. Pour résoudre le problème d’optimalité de la diffusion, nous proposons une formulation en nombres entiers, un algorithme d’approximation, une méta-heuristique et une heuristique permettant de trouver ou s’approcher de l’optimal pour les objectifs considérés.Pour le cas du routage, nous proposons une approche cross-layer via un programme linéaire en nombre entiers entre les couches MAC et Liaison de données permettant de calculer l'optimal et ainsi d'avoir un point de comparaison pour les futures heuristiques ayant les mêmes objectifs. / This thesis studies the problems of bi-objective optimization of communications in heterogeneous wireless sensor networks from the point of view of the transmission range. The first criterion considered is necessarily the energy consumption that needs to be reduced in order to maximize the network lifetime. The second criterion is the data transmission delay, which is essential for real-time applications.To solve the optimality problem of the broadcast, we propose an integer linear program, an approximation algorithm, a meta-heuristic and a heuristic. All these techniques allow us to find or to approximate the optimal solutions for the considered objectives.For the routing case, we propose a cross-layer approach via an integer linear program between the MAC and Data Link layers. Our method calculates the optimal solution, which represents a point of comparison for future heuristics having the same goals.

This thesis describes the process of archiving of shots and programmes in news and sport editorial offices of the Czech Television. Newsroom prepares broadcasts for ČT1 and ČT24 programmes. The sport editorial office provides the broadcasts for ČT SPORT and also prepares the news for "Branky, body, vteřiny" on ČT1. With regard to this, both offices produce a considerable amount of audio-visual material. The thesis examines how this material is subsequently archived. Do both offices have a systematic and comprehensive procedure for archiving of shots and programmes? And are these archives easily traceable, available and usable for further broadcasting? The thesis summarizes the history of archiving of news and sport audio-visual material. The key process of digitization, which allows the transcription and saving of old archive materials stored on tape media, is also mentioned. After describing the history of archiving, the author focuses on the current methodology of the process and describes the system of archiving in news and sports news. Who does archiving and what systems and programmes are used for it? At the end of this thesis the future of archiving is analysed with regard to the progress in technologies used for archiving.

Made available in DSpace on 2016-04-26T18:13:21Z (GMT). No. of bitstreams: 1 Flavio Maia Custodio.pdf: 6244922 bytes, checksum: 52b785621ff33a22bfd1fe7f6611cbf5 (MD5) Previous issue date: 2013-10-08 / The Catholic Church elected the last decade of the past century for the investment in television as a resource and mean for evangelization, consolidating its tradition in electronic evangelization, started on the radio in the 50 s. Currently, in Brazil, there are four coexisting catholic television stations, which broadcast nationally: Rede Vida, Canção Nova, TV Século XXI and TV Aparecida, besides the local ones maintained by dioceses. The investment in television means that the physical church itself is no longer the exclusive place for the expression of cult. Our object of study is the analysis of the televisual broadcast produced by two catholic television stations: TV Canção Nova and TV Aparecida. The choice of these stations was made due to the definition of two distinct scenarios of Catholicism: the charismatic scenario and the institutional scenario. Two weeks were randomly selected during the research for an accurate analysis of the broadcast. We will take into consideration for the analysis not only the technical characteristics of the audiovisual but, above all, the content aired. We avoided the comparative analysis between the two stations because it would be irrelevant, considering that both are confessional stations of the same creed. We intend to verify if there is any differential between the broadcast produced by these stations and the others, basing on the hypothesis that by absorbing several formats of radiophonic programs and transposing them to television, confessional Catholics prepare its programming plan in formats that have already been established by evangelization and repeat in their broadcast the formats from nonconfessional stations. Our analysis is based on the case study of the mentioned stations and is supported by theories of cultural miscegenation (GRUZINSKI, 2001; PINHEIRO, 2009); of cultural mediation (MARTIN-BARBERO, 2001, 2004); the spectacle society (DEBORD, 2007); the sociology of absences and the emergencies (SANTOS, 2010) / A Igreja Católica elegeu a última década do século passado para o investimento na televisão como recurso e meio para a evangelização, consolidando a sua tradição na evangelização eletrônica, iniciada nos 1950 no rádio. Atualmente, no Brasil, coexistem quatro emissoras de televisão católicas, que transmitem sua programação nacionalmente: Rede Vida, Canção Nova, TV Século XXI e TV Aparecida, além de emissoras locais mantidas por dioceses. O investimento em televisão faz com que a Igreja física deixe de ser o local exclusivo para a manifestação do culto. O nosso objeto de estudo é a análise da programação televisual produzida por duas emissoras de TVs católicas: TV Canção Nova e TV Aparecida. A escolha destas emissoras obedeceu à definição de dois cenários distintos de catolicismo: o cenário carismático e o cenário institucional. Selecionamos duas semanas, aleatórias, ao longo da pesquisa, para a análise apurada da programação. Levaremos em consideração para a análise, não só as características técnicas do audiovisual, mas, sobretudo o conteúdo de programação veiculado. Evitamos a análise comparativa entre as emissoras citadas, pois seria irrelevante, tendo em vista que ambas são emissoras confessionais do mesmo credo. Queremos verificar se há algum diferencial entre a programação produzida por essas emissoras e as outras emissoras, partindo da hipótese de que absorvendo vários formatos de programas radiofônicos e transpondo-os para a televisão, emissoras confessionais católicas elaboram sua grade de programação em formatos já consagrados pela evangelização e repetem em seus programas formatos encontrados em emissoras não-confessionais. A nossa análise se baseia no estudo de caso das emissoras citadas e é amparada pelas teorias da mestiçagem cultural (GRUZINSKI, 2001; PINHEIRO, 2009); da mediação cultural (MARTIN-BARBERO, 2001, 2004); e da sociedade do espetáculo (DEBORD, 2007); da sociologia das ausências e das emergências (SANTOS, 2010)

Huang Ruizhang. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2003. / Includes bibliographical references (leaves 110-114). / Abstracts in English and Chinese. / Abstract --- p.i / Acknowledgement --- p.iv / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- The Defitition of Topic and Event --- p.2 / Chapter 1.2 --- Event and Topic Discovery --- p.2 / Chapter 1.2.1 --- Problem Definition --- p.2 / Chapter 1.2.2 --- Characteristics of the Discovery Problems --- p.3 / Chapter 1.2.3 --- Our Contributions --- p.5 / Chapter 1.3 --- Story Link Detection --- p.5 / Chapter 1.3.1 --- Problem Definition --- p.5 / Chapter 1.3.2 --- Our Contributions --- p.6 / Chapter 1.4 --- Thesis Organization --- p.7 / Chapter 2 --- Literature Review --- p.8 / Chapter 2.1 --- University of Massachusetts (UMass) --- p.8 / Chapter 2.1.1 --- Topic Detection Approach --- p.8 / Chapter 2.1.2 --- Story Link Detection Approach --- p.9 / Chapter 2.2 --- BBN Technologies --- p.10 / Chapter 2.3 --- IBM Research Center --- p.11 / Chapter 2.4 --- Carnegie Mellon University (CMU) --- p.12 / Chapter 2.4.1 --- Topic Detection Approach --- p.12 / Chapter 2.4.2 --- Story Link Detection Approach --- p.14 / Chapter 2.5 --- National Taiwan University (NTU) --- p.14 / Chapter 2.5.1 --- Topic Detection Approach --- p.14 / Chapter 2.5.2 --- Story Link Detection Approach --- p.15 / Chapter 3 --- System Overview --- p.17 / Chapter 3.1 --- News Sources --- p.18 / Chapter 3.2 --- Story Preprocessing --- p.24 / Chapter 3.3 --- Information Extraction --- p.25 / Chapter 3.4 --- Gloss Translation --- p.26 / Chapter 3.5 --- Term Weight Calculation --- p.30 / Chapter 3.6 --- Event And Topic Discovery --- p.31 / Chapter 3.7 --- Story Link Detection --- p.33 / Chapter 4 --- Event And Topic Discovery --- p.34 / Chapter 4.1 --- Overview of Event and Topic discovery --- p.34 / Chapter 4.2 --- Event Discovery Component --- p.37 / Chapter 4.2.1 --- Overview of Event Discovery Algorithm --- p.37 / Chapter 4.2.2 --- Similarity Calculation --- p.39 / Chapter 4.2.3 --- Story and Event Combination --- p.43 / Chapter 4.2.4 --- Event Discovery Output --- p.44 / Chapter 4.3 --- Topic Discovery Component --- p.45 / Chapter 4.3.1 --- Overview of Topic Discovery Algorithm --- p.47 / Chapter 4.3.2 --- Relevance Model --- p.47 / Chapter 4.3.3 --- Event and Topic Combination --- p.50 / Chapter 4.3.4 --- Topic Discovery Output --- p.50 / Chapter 5 --- Event And Topic Discovery Experimental Results --- p.54 / Chapter 5.1 --- Testing Corpus --- p.54 / Chapter 5.2 --- Evaluation Methodology --- p.56 / Chapter 5.3 --- Experimental Results on Event Discovery --- p.58 / Chapter 5.3.1 --- Parameter Tuning --- p.58 / Chapter 5.3.2 --- Event Discovery Result --- p.59 / Chapter 5.4 --- Experimental Results on Topic Discovery --- p.62 / Chapter 5.4.1 --- Parameter Tuning --- p.64 / Chapter 5.4.2 --- Topic Discovery Results --- p.64 / Chapter 6 --- Story Link Detection --- p.67 / Chapter 6.1 --- Topic Types --- p.67 / Chapter 6.2 --- Overview of Link Detection Component --- p.68 / Chapter 6.3 --- Automatic Topic Type Categorization --- p.70 / Chapter 6.3.1 --- Training Data Preparation --- p.70 / Chapter 6.3.2 --- Feature Selection --- p.72 / Chapter 6.3.3 --- Training and Tuning Categorization Model --- p.73 / Chapter 6.4 --- Link Detection Algorithm --- p.74 / Chapter 6.4.1 --- Story Component Weight --- p.74 / Chapter 6.4.2 --- Story Link Similarity Calculation --- p.76 / Chapter 6.5 --- Story Link Detection Output --- p.77 / Chapter 7 --- Link Detection Experimental Results --- p.80 / Chapter 7.1 --- Testing Corpus --- p.80 / Chapter 7.2 --- Topic Type Categorization Result --- p.81 / Chapter 7.3 --- Link Detection Evaluation Methodology --- p.82 / Chapter 7.4 --- Experimental Results on Link Detection --- p.83 / Chapter 7.4.1 --- Language Normalization Factor Tuning --- p.83 / Chapter 7.4.2 --- Link Detection Performance --- p.90 / Chapter 7.4.3 --- Link Detection Performance Breakdown --- p.91 / Chapter 8 --- Conclusions and Future Work --- p.95 / Chapter 8.1 --- Conclusions --- p.95 / Chapter 8.2 --- Future Work --- p.96 / Chapter A --- List of Topic Title Annotated for TDT3 corpus by LDC --- p.98 / Chapter B --- List of Manually Annotated Events for TDT3 Corpus --- p.104 / Bibliography --- p.114

This thesis uncovers and analyses the relationship between forms of talk on British television between 1970-1990, and the uneven transformations in gender politics that occurred in this period, which encompasses both the second wave feminist movement and the rise of neoliberal politics. It presents five historical case studies of talk-based television programmes from across this time period: No Man’s Land (Associated Television/ITV, 1973), Good Afternoon! (Thames Television/ITV, 1971-1984), Pictures of Women: Sexuality (Channel 4, 1984), Watch the Woman (Channel 4, 1985), and Question Time (BBC One, 1979-present). These case studies offer a deliberate selection of television texts that differ according to their institutional contexts; their position in the schedules; their status in existing broadcasting histories; their discursive arrangements; and their modes of address. The thesis seeks to consider how the communicative ethos of television talk has been gendered in three key ways: at the level of production - in the sense of when, how, and why television spaces have been opened up for gendered forms of talk in relationship to wider shifts in gender politics; at the level of the text - in terms of how the discursive arrangements of talk-based programmes have worked to include, exclude, legitimise or disavow women’s voices; and at the level of critical reception - in the sense of how television talk has been evaluated in profoundly gendered terms. The thesis is methodologically innovative because it theorises gendered forms of television talk in relationship to histories of television production, as well as to broader political, cultural and gender histories. It carries out important empirical ‘recovery work’ of hidden women’s television histories through the presentation of original archival research. It also presents theoretical work, which re-evaluates the distinctive communicative ethos of television – or its “sociability” in light of feminist theories of language, gender and power. Moreover, it sheds some historical light on why the institutional parameters of television still delimit the available spaces for women's speech.