Thesis (Ph. D.)--Illinois State University, 2002. / Title from title page screen, viewed Aug. 24, 2004. Dissertation Committee: James C. Palmer (chair), George Padavil, Albert T. Azinger, Mohamed Nur-Awaleh. Includes bibliographical references (leaves 155-162) and abstract. Also available in print.

Thesis (M.S.)--University of Missouri-Columbia, 2003. / Typescript. Includes bibliographical references (leaves 132-133). Also available on the Internet.

Thesis (M.S.)--University of Missouri-Columbia, 2003. / Typescript. Includes bibliographical references (leaves 132-133). Also available on the Internet.

Thesis (M.S.)--University of Missouri-Columbia, 2004. / Typescript. Includes bibliographical references (leaves 90-92). Also available on the Internet.

Thesis (M.Eng.)--Memorial University of Newfoundland, 1999. / Bibliography: leaves 134-141.

Thesis (M.S.)--University of Missouri-Columbia, 2004. / Typescript. Includes bibliographical references (leaves 90-92). Also available on the Internet.

Cette thèse vise à étudier l’interaction pédagogique par visioconférence entre sept futurs professeurs de français langue étrangère en formation professionnelle à l’Université de Lyon et douze apprenants de français langue étrangère inscrits dans une école de commerce à Dublin City University. A partir de données écologiques, nous avons construit un corpus audiovisuel de vingt-huit séances et de quinze heures et demie d’interactions. Par une démarche inductive, en nous appuyant sur des méthodes développées dans le cadre de l’analyse conversationnelle, nous avons identifié 295 séquences d’explication lexicale. Nous avons analysé celles-ci par une approche multimodale qui adopte une vue holistique de la communication et prend en compte l’utilisation de l’ensemble des ressources sémiotiques sans privilégier par défaut le langage oral. Nos analyses multimodales montrent de quelles façons les enseignants utilisent les ressources à leur disposition pour se focaliser sur la forme des items lexicaux, pour se focaliser sur leur sens et pour impliquer les apprenants dans les séquences d’explication. Nos données permettent également de mener des comparaisons interindividuelles grâce au fait que plusieurs enseignants, ayant reçu les mêmes consignes et se trouvant dans des situations similaires, expliquent les mêmes items lexicaux. / This thesis aims to study videoconferenced pedagogical interaction between seven future teachers of French who are undergoing professional development at the University of Lyon and twelve learners of French who are enrolled in a business school at Dublin City University. From naturally occurring interaction, we have constructed an audiovisual corpus comprised of twenty-eight sessions and fifteen and a half hours of interaction. Through an inductive approach, and relying on methods developed in the field of conversation analysis, we have identified 295 lexical explanation sequences. We have analyzed them using a multimodal approach which adopts a holistic view of communication and takes into consideration the entire palette of semiotic resources used without automatically prioritizing spoken language. Our multimodal analyses show the ways in which the teacher trainees use the resources at their disposal to focus on the form and meaning of lexical items as well as how they involve their learners in the explanation sequences. Our corpus also allows us to conduct an interindividual comparison due to the fact that several teacher trainees, having received the same instructions and being put in similar situations, explain the same lexical items.

abstract: This study is intended as a catalyst to inspire new ways of thinking by educators, school administrators, and museum educators. It is a study of six K-12 art teachers who have both the technology and the opportunity at their school campuses to use collaborative videoconferencing as part of their instruction in multicultural art, linking their students to the resources of the Smithsonian Institute in Washington D.C. The art unit used for the purpose of this study was Latina/o art. Findings show the Smithsonian American Art Museum program to be of high quality and useful i students see the connection between identity of self and multicultural art. / Dissertation/Thesis / M.A. Art 2013

Abstract Telehealth adoption is a complex and challenging process that often ends in failure. In Finland, telehealth in the form of videoconferencing is used relatively little in patient care, despite the relatively long geographical distances. The aim of this study was to describe telehealth adoption within one Finnish telehealth project. The aim was also to investigate why some telehealth applications remained in permanent use after the experimental phase while others did not. This was a qualitative study in which the material was gathered using theme interviews. Document material was also used to complement the interview data. Employees working in health care centres and specialised health care (n=41) took part in the study in 2007–2009. Some of the staff members were interviewed twice, which is why the material comprised a total of 55 interviews. The material was analysed using inductive, deductive and theory-driven content analysis. Successful adoption of telehealth applications is influenced by a variety of factors. The key factor is telehealth compatibility, which must be looked at from the perspectives of individuals (staff and patients), processes and the organisation. In terms of adoption success, factors associated with the organisation and how the project was organised were particularly emphasised, such as the need for adoption and arrangement of teleconsultations as regular processes with permanent staff and due attention to technology access and functionality. As a whole, health care staff were positive towards telehealth adoption; however, a negative attitude is not a definite obstacle to adoption. Health care staff perceived telehealth as having a number of benefits for patients, employees and society as a whole. Telehealth must be suited for patients and employees, clinical healthcare processes and the organisation. Suitability can be impacted by organisation and technology. The study has generated information about the adoption of telehealth in the Finnish health care system. This information can be made use of when planning new telehealth projects. / Tiivistelmä Etäterveydenhuollon käyttöönotto on monimutkainen ja haasteellinen prosessi, jossa epäonnistutaan usein. Suomessa videoneuvottelutekniikan avulla toteutettua etäterveydenhuoltoa käytetään potilastyössä melko vähän, vaikka meillä maantieteelliset välimatkat ovat pitkiä. Tämän tutkimuksen tarkoituksena oli kuvata etäterveydenhuollon käyttöönottoa yhdessä suomalaisessa etäterveydenhuoltohankkeessa. Tarkoituksena oli myös selvittää, miksi osa etäterveydenhuollon sovelluksista jäi pysyvään käyttöön ja osa loppui kokeiluvaiheen jälkeen. Tutkimusmetodina oli laadullinen tutkimus, jossa aineisto kerättiin teemahaastatteluilla. Lisäksi dokumenttiaineistoa käytettiin täydentämään haastatteluaineistoa. Haastatteluihin osallistui terveyskeskusten ja erikoissairaanhoidon työntekijöitä (n =  41) vuosina 2007–09. Osa työntekijöistä haastateltiin kahteen kertaan, joten kokonaisuutena tutkimusaineisto käsitti 55 haastattelua. Tutkimusaineisto analysoitiin aineistolähtöisellä, teorialähtöisellä ja teoriaohjaavalla sisällönanalyysillä. Etäterveydenhuollon sovellusten käyttöönoton onnistumiseen vaikuttavat monet eri tekijät. Keskeisin tekijä on etäterveydenhuollon soveltuvuus, jota pitää tarkastella yksilön (työntekijöiden ja potilaiden), prosessien ja organisaation näkökulmista. Käyttöönoton onnistumisessa painottuvat etenkin organisaatioon ja hankkeen organisoimiseen liittyvät tekijät, kuten tarve käyttöönotolle ja etäkonsultaatioiden järjestäminen säännöllisiksi prosesseiksi, joissa on pysyvät työntekijät ja joissa teknologian saatavuudesta sekä toimivuudesta on huolehdittu. Terveyskeskustyöntekijät suhtautuvat pääasiassa myönteisesti etäterveydenhuollon käyttöönottoon, eikä kielteinen asenne ole ehdoton este käyttöönotolle. Terveyskeskustyöntekijät kokevat etäterveydenhuollosta olevan monenlaista hyötyä potilaille, työntekijöille ja yhteiskunnalle. Etäterveydenhuollon täytyy soveltua potilaille ja työntekijöille, terveydenhuollon kliinisiin prosesseihin ja organisaatiolle. Organisoinnilla ja teknologialla voidaan vaikuttaa soveltuvuuteen. Tutkimus on tuottanut tietoa etäterveydenhuollon käyttöönotosta suomalaisessa terveydenhuoltojärjestelmässä. Tätä tietoa voidaan hyödyntää suunniteltaessa uusia etäterveydenhuoltohankkeita.

Video streaming applications over best-effort networks, such as the Internet, have become very popular among Internet users. Watching live sports and news, renting movies, watching clips online, making video calls, and participating in videoconferences are typical video applications that millions of people use daily. One of the most challenging aspects of video communication is the proper transmission of video in various network bandwidth conditions. Currently, various devices with different processing powers and various connection speeds (2G, 3G, Wi-Fi, and LTE) are used to access video over the Internet, which offers best-effort services only. Skype, ooVoo, Yahoo Messenger, and Zoom are some well-known applications employed on a daily basis by people throughout the world; however, best-effort networks are characterized by dynamic and unpredictable changes in the available bandwidth, which adversely affect the quality of the video. For the average consumer, there is no guarantee of receiving an exact amount of bandwidth for sending or receiving video data. Therefore, the video delivery system must use a bandwidth adaptation mechanism to deliver video content properly. Otherwise, bandwidth variations will lead to degradation in video quality or, in the worst case, disrupt the entire service. This is especially problematic for videoconferencing (VC) because of the bulkiness of the video, the stringent bandwidth demands, and the delay constraints. Furthermore, for business grade VC, which uses high definition videoconferencing (HDVC), user expectations regarding video quality are much higher than they are for ordinary VC. To manage network fluctuations and handle the video traffic, two major components in the system should be improved: the video encoder and the congestion control. The video encoder is responsible for compressing raw video captured by a camera and generating a bitstream. In addition to the efficiency of the encoder and compression speed, its output flow is also important. Though the nature of video content may make it impossible to generate a constant bitstream for a long period of time, the encoder must generate a flow around the given bitrate. While the encoder generates the video traffic around the given bitrate, congestion management plays a key role in determining the current available bandwidth. This can be done by analyzing the statistics of the sent/received packets, applying mathematical models, updating parameters, and informing the encoder. The performance of the whole system is related to the in-line collaboration of the encoder and the congestion management, in which the congestion control system detects and calculates the available bandwidth for a specific period of time, preferably per incoming packet, and informs rate control (RC) to adapt its bitrate in a reasonable time frame, so that the network oscillations do not affect the perceived quality on the decoder side and do not impose adverse effects on the video session. To address these problems, this thesis proposes a collaborative management architecture that monitors the network situation and manages the encoded video rate. The goal of this architecture is twofold: First, it aims to monitor the available network bandwidth, to predict network behavior and to pass that information to the encoder. So encoder can encode a suitable video bitrate. Second, by using a smart rate controller, it aims for an optimal adaptation of the encoder output bitrate to the bitrate determined by congestion control. Merging RC operations and network congestion management, to provide a reliable infrastructure for HDVC over the Internet, represents a unique approach. The primary motivation behind this project is that by applying videoconference features, which are explained in the rate controller and congestion management chapter, the HDVC application becomes feasible and reliable for the business grade application even in the best-effort networks such as the Internet.