The rapid growth of Science and Technology has made the use of scientific information a problem of international concern. To keep abreast of current research the scientist and engineer can use a multitude of information sources. In this study the problem of information use is analysed and a theoretical framework is developed and applied in several case-studies of formal and informal communication. The case-studies include surveys among scientists, engineers and social scientists in different R&D-settings. Information about research is looked upon as a fundamental resource for R&D activities. It is demonstrated that information use and communication behavior are related to research productivity. However the use of both written and oral information sources is limited by barriers related to the individual user, his position in the social structure of the research community and organisation as well as the availability of information resources. In order to improve the use of knowledge it is necessary to integrate the information and documentation functions with the planning and conduct of research. In this context user education and marketing of information resources are important prerequisites. Information search and library use in higher education are analysed and discussed in relation to pedagogical methods and the maintainance of professional competence. Special attention is also given to computerized reference retrieval services and their evaluation. / digitalisering@umu

An Exploratory Study on the Interrelationship of Internet Addiction, Internet Usage Motivation, Internet Usage Behavior and User Characteristics for Taiwan High School Students. Chieh-Ju Tung Abstract The purpose of this study was to examine the interrelationship among motivation and gratification level, activities, personality and Internet addiction for Taiwan¡¦s high school students based on the Uses and Gratifications Theory. The characteristics of those identified as addicted are investigated along with the factors of demographic data, motivation and gratification, web attitude and personality. Moreover, structural equation modeling was used to verify the Theory. The study was conducted using purposive sampling at two major municipals in Taiwan. Questionnaires including Pathological Internet Use Scale for Taiwan high school student, Diagnoistic Questionnaires, Internet usage Motivation and Gratification Scale, Interpersonal Relationship Scale, Self-Esteem Scale, Center for Epidemiologic Studies Depression Scale, Internet Usage Behavior Questionnaire, Perceptions of the Internet Influences and Demographic Data. Of the 1708 qualified samples, 236 were classified as Internet addicted. Major findings of the study are: 1. Entertainment is the major factor for high school students to use Internet, information searching stands as second. Surfing with motivation of social and entertainment has positive correlation with Internet addiction. Those classified as addicted have higher motivation on social and entertainment and have higher satisfaction thereafter. 2. Males who own computer, with grades in lower two-thirds of the class, with more than 4 years Internet usage experience, always using cyber-café or surfing during weekday have higher tendency to become addicted. 3. System and location of school, the grade attended or whether access Internet at home have no relationship with addiction. 4. The average weekly hours on Internet is positive correlated with Internet addiction. 5. Students with personality of dependence, shyness, depression or lower self-esteem have higher tendency to become addicted. 6. The probability of males to become addicted is 2.6 times that of females. Vocational high school students have higher tendency to become addicted than non-vocational high school students. 7. The average weekly hours on Internet for those addicted is 21.2 hours, it¡¦s 1.75 times that of normal ones. 8. Those identified as addicted always surf in cyber-café and favor on-line games, chat room and sex-related activities. 9. Those identified as addicted have lower self-esteem and higher depression. 10. Internet addiction has significant canonical correlation with motivation on social/entertainment and hours on Internet. 11. Internet addiction has significant canonical correlation with shyness, depression emotion, poor interpersonal relationship, negative self-concept and lower self-esteem. 12. The theoretical model constructed in this study could explain the relationship among main variables by Amos. 13. ¡§Internet usage motivation¡¨ has greatest direct effect on addiction. It has greatest total effect when combines with the factor of ¡§Average weekly hours on Internet ¡¨. 14. The predictability for Internet addiction is 62% when six variables were used (Motivation on social, Motivation on entertainment, Average weekly hours on Internet, Interpersonal relationship, Depression and Self-esteem). Finally, suggestions on counseling addicted students are made for government and high school authorities, counselors and parents. Issues for futher study are also discussed.

In direct marketing, understanding the response behavior of consumers to marketing initiatives is a pre-requisite for marketers before implementing targeting strategies to reach potential as well as existing consumers in the future. Consumer response can either be in terms of the incidence or timing of purchases, category/ brand choice of purchases made as well as the volume or purchase amounts in each category. Direct marketers seek to explore how past consumer response behavior as well as their targeting actions affects current response patterns. However, considerable heterogeneity is also prevalent in consumer responses and the possible sources of this heterogeneity need to be investigated. With the knowledge of consumer response and the corresponding heterogeneity, direct marketers can devise targeting strategies to attract potential new consumers as well as retain existing consumers. In the first essay of my dissertation (Chapter 2), I model the response behavior of donors in non-profit charity fund-raising in terms of their timing and volume of donations. I show that past donations (both the incidence and volume) and solicitation for alternative causes by non-profits matter in donor responses and the heterogeneity in donation behavior can be explained in terms of individual and community level donor characteristics. I also provide a heuristic approach to target new donors by using a classification scheme for donors in terms of the frequency and amount of donations and then characterize each donor portfolio with corresponding donor characteristics. In the second essay (Chapter 3), I propose a more structural approach in the targeting of customers by direct marketers in the context of customized retail couponing. First I model customer purchase in a retail setting where brand choice decisions in a product category depend on pricing, in-store promotions, coupon targeting as well as the face values of those coupons. Then using a utility function specification for the retailer which implements a trade-off between net revenue (revenue – coupon face value) and information gain, I propose a Bayesian decision theoretic approach to determine optimal customized coupon face values. The optimization algorithm is sequential where past as well as future customer responses affect targeted coupon face values and the direct marketer tries to determine the trade-off through natural experimentation. / text

No description available.

Les forêts occidentales sont aujourd’hui de plus en plus prisées pour la pratique d’activités récréatives en milieu naturel. Dès lors, la mise en place d’une gestion intégrée des forêts est plus que jamais indispensable au maintien des conditions nécessaires à la pratique de l’ensemble des activités sur le territoire. Le Québec s’est doté d’une nouvelle législation pour répondre aux nombreux enjeux qui touchent le milieu forestier, notamment en ce qui a trait à l’harmonisation entre les activités récréatives et la production ligneuse. Dans le cadre de cette recherche, nous nous sommes intéressés au concept d’expérience du visiteur comme moyen de faciliter cette harmonisation. Il s’agissait à la fois de caractériser l’expérience de visite des utilisateurs d’un parc régional et de se questionner sur son opérationnalisation dans l’aménagement forestier. Deux méthodes qualitatives complémentaires ont été utilisées : d’une part, l’analyse de récits inscrits dans des livres d’or placés dans différents hébergements et d’autre part, des entrevues ont été conduites auprès de visiteurs rencontrés sur le site. Les résultats révèlent la pertinence de considérer l’expérience du visiteur pour favoriser une utilisation plurielle et harmonieuse du territoire forestier. Son étude permet une compréhension fine des composantes communes et spécifiques des expériences, en fonction des visiteurs. Par ailleurs, l’étude témoigne de la possibilité de mettre en relation des typologies d’expériences recherchées et les modalités d’harmonisation. Enfin, au-delà de l’expérience, le suivi de la perception de la foresterie et des représentations peut également s’avérer pertinent pour les gestionnaires. / The practice of outdoor recreational activities in western forests is becoming increasingly popular. Therefore, the implementation of integrated management with regards to publicly-owned forests is more important than ever in order to maintain conditions necessary for all activities on the territory. The province of Québec which has recently adopted a new Forestry Act is following this trend by addressing the numerous forest management issues such as harmonizing of various uses which represents a major challenge, particularly with regards to recreation and timber production. Throughout this research, we focused on the concept of visitors’ experience as a means to facilitate harmonization. The objectives were to identify the attributes of visitors’ experiences in a regional park and to assess how it can be useful in forest management. Two complementary qualitative methodologies were applied: on the one hand, we analyzed the comments written by visitors on guest books, and on the other hand, we interviewed visitors we met on the site. Results indicate the relevance of using visitors’ experiences to promote a plural and harmonious use of forest lands. The study allows for an in-depth understanding of experience components, both common and specific, which vary according to visitors. Moreover, the study reveals that it’s possible to connect certain experience profiles with harmonization terms. Finally, beyond the mere experience, it appears that forest managers who are aware of the perception and image of forest management will certainly benefit from this information.

Cette étude porte sur les usages des TIC des étudiants universitaires du Cameroun. Elle se situe dans un contexte de l’enseignement supérieur camerounais en pleine mutation par les TIC. Elle vise donc à mieux comprendre les utilisations des TIC qui influencent l’apprentissage et la motivation académique chez les étudiants universitaires du Cameroun. Pour atteindre cet objectif, quatre principaux axes d’étude sont envisagés : -Les usages des TIC des étudiants universitaires camerounais; -Les perceptions des étudiants sur l’usage des TIC dans leur formation; -L’impact des TIC sur l’apprentissage des étudiants universitaires du Cameroun ; -L’impact des TIC sur la motivation académique des étudiants universitaires en apprentissage. La typologie de De Vries (2001) adoptée, qui est bâtie sur plusieurs variables d’apprentissage en lien avec les TIC (lire, faire des exercices, dialogue, jouer, explorer, manipuler, observer, construire et discuter), a facilité l’élaboration d’un portrait des usages des TIC des étudiants universitaires camerounais. Pour vérifier si les TIC ont un lien avec l’acquisition du savoir visée par un cours chez les étudiants camerounais, nous avons eu recours à la taxonomie de Bloom (1956) révisée par Lorin (2001). Cette taxonomie est constituée des verbes d’action qui décrivent des opérations cognitives d’apprentissage et spécifient des activités d’apprentissage liée aux TIC en terme de « capacité à ». Aussi, les résultats de Barrette (2005) sur les effets des TIC sur l’apprentissage (amélioration des résultats académiques, développement des opérations cognitives, amélioration de la motivation et intérêt des étudiants) nous ont servi de balises pour mieux comprendre les influences des TIC sur l’apprentissage des étudiants universitaires. La littérature sur l’impact des TIC sur la motivation académique a révélé que les sentiments d'autodétermination, de compétence et d'affiliation influencent la motivation des étudiants. Ainsi la théorie retenue de l'autodétermination de Deci et Ryan (1985, 1991, 2000) nous permet de mieux cerner le concept de la motivation dans cette étude. Cette recherche se fonde sur une méthodologie de type mixte, comportant plusieurs sources de données collectées (Savoie-Zajc et Karsenti (2000)): entrevues individuelles semi dirigées avec des étudiants (n = 9), observations participantes d’étudiants (n=2), observations participantes de groupes d’étudiants (n = 3), questionnaire (n=120). La thèse suit un mode de présentation par articles, chacun des articles étant en lien avec l’un des objectifs de la recherche. Les résultats obtenus confortent l’hypothèse d’une utilisation des TIC à des fins académiques par des étudiants dans le campus ainsi que dans les cybercafés. Autrement dit, la recherche dresse un portrait des usages des TIC des étudiants universitaires camerounais en mettant en évidence les types d’utilisation multivariés rencontrés. Les résultats font aussi ressortir que les TIC sont des outils didactiques efficaces pour faciliter la compréhension des situations complexes des cours suivis par les étudiants. Cette recherche a donné lieu à l’adaptation de l’échelle de mesure EMITICE, un instrument de mesure de la motivation lors de l'intégration des TIC dans l'enseignement, qui a permis de déterminer les variations de la motivation des étudiants et de mettre en évidence une comparaison de l'évolution du type de leur motivation. / This study focuses on the uses of ICT by Cameroonian university students, in a context where the higher education is changing due to ICT. It therefore aims to better understand the uses of ICT that affect learning and academic motivation significantly among Cameroonian university students. To achieve this objective, four main areas of study are considered: -The uses of ICT by Cameroonian university students; -The perceptions of students on the use of ICT in their training -The impact of ICT on the learning of Cameroonian university students; -The impact of ICT on the academic motivation of university students in learning. The adopted typology of De Vries (2001), which is built on several variables related to learning with ICT (reading, doing exercises, dialoguing, playing, exploring, manipulating, observing, building and discussing), has facilitated the development of a description of the uses of ICTs by Cameroonian university students. To check whether ICT has a connection with the acquisition of knowledge aimed at by a course given to Cameroonian students, we used the taxonomy of Bloom (1956) revised by Lorin (2001). This taxonomy consists of active verbs that describe the operations of cognitive learning and specify learning activities related to ICT in terms of "ability to". Also, the results of Barrette (2005) on the effects of ICT on learning (improving academic achievement, cognitive development operations, improving the motivation and interest of students) have been very instrumental to better understand the influences of ICT on the learning of university students. The literature about the impact of ICT on academic motivation showed that the feelings of self-determination, competence and affiliation, influence students’ motivation. Thus, the theory of self-restraint of Deci and Ryan (1985, 1991, 2000) allows us to better understand the concept of motivation in this study. This research is based on a mixed methodology, with multiple sources of data collected (Savoie-Zajc and Karsenti (2000)): semi-directed interviews with individual students (n = 9), participating observations of students (n = 2), participating observation of groups of students (n = 3), questionnaire (n = 120). The thesis follows a format for articles, each article being closely linked with one of the objectives of the research. The results support the hypothesis that students use ICT on campus and in the cyber cafes for academic purposes. In other words, the research makes a description of Cameroonian university students’ uses of ICT, highlighting the types of the diverse uses encountered. The results also show that ICT are effective teaching tools to facilitate the understanding of complex situations of courses taken by students. This research led to the adaptation of the measurement scale EMITICE, a tool for measuring motivation during the integration of ICT in education, which made it possible to determine the motivation variation of students and to highlight a comparison of the changes in the type of students’ motivation.

Le but du présent projet de thèse est d’étudier le lien entre les habitudes à l’endroit des technologies de l’information et de la communication (TIC) et la motivation à apprendre. Bien que l’utilisation de l’ordinateur en contexte scolaire ait été étudiée en profondeur au cours des dernières années, la majorité des études présentent la même perspective : elles examinent l’effet de l’utilisation des technologies à l’école sur le rendement et la motivation scolaire des élèves. Cependant, on connaît mal l’effet de l’utilisation des technologies à des fins personnelles sur le vécu scolaire. Il apparait que les élèves n’ont pas tous les mêmes opportunités en ce qui a trait à l’utilisation des TIC et n’acquièrent donc pas tous les mêmes compétences dans ce domaine. Quelques recherches se sont intéressées aux effets de l’ordinateur (sa présence et son utilisation à la maison) sur le rendement à l’école. Bien qu’en majorité, les auteurs s’entendent sur les bénéfices que pourrait générer l’ordinateur, ils restent prudents sur les rapports de cause à effet (Beltran, Das et Fairlie, 2008; OCDE, 2006). Nous avons voulu aborder la question différemment : déterminer les possibles liens entre les habitudes d’utilisation de l’ordinateur à des fins personnelles et la motivation à apprendre à l’école. À cet égard, la motivation pour les sciences a été retenue puisque cette matière scolaire fait souvent appel à des compétences associées à l’utilisation des TIC. Pour répondre à nos objectifs, 331 élèves du cours ordinaire de sciences et technologie au premier cycle du secondaire ont remplis un questionnaire autorapporté, composé de sept échelles motivationnelles et d’un questionnaire lié à l’utilisation des TIC. Nous avons d’abord dégagé des profils d’utilisateurs à partir des différentes utilisations de l’ordinateur. Ensuite, nous avons examiné ces profils en lien avec leurs caractéristiques motivationnelles (le sentiment de compétence, l’anxiété, l’intérêt et les buts d’accomplissement) et l’engagement pour le cours de sciences. Finalement, nous avons déterminé la valeur prédictive de l’utilisation de l’ordinateur sur les variables motivationnelles retenues. Nos résultats montrent que l’utilisation personnelle des TIC ne se fait pas nécessairement au détriment de l’école. Nous avons trouvé que les élèves qui utilisent davantage les TIC dans leurs temps libres, et ce, avec des utilisations diversifiées, ont des caractéristiques motivationnelles plus positives. Toutefois, nous constatons que le type d’usage est lié à un effet médiateur positif ou négatif sur la motivation à apprendre. Les élèves qui limitent leurs utilisations de l’ordinateur à la communication et aux jeux ont des caractéristiques motivationnelles plus négatives que ceux avec des utilisations variées. Les usages centrés sur la communication semblent être ceux qui sont le plus susceptibles d’être liés négativement à la motivation à apprendre alors que ceux orientés vers les usages à caractère intellectuel s’avèrent plus positifs. Les résultats suggèrent que la clé ne réside pas dans le temps d'utilisation mais plutôt dans l'utilisation judicieuse de ce temps. En favorisant des usages à caractère intellectuel, tout en laissant des temps libres aux jeunes, nous augmentons leurs chances de développer de bonnes habitudes technologiques qui seront essentielles dans la société de demain. / This thesis’ subject was to study the relationship between the personal uses of computers and motivational attitudes in science. Even though computer uses in educational context have been extensively studied in recent years, the bulk of the research was focused on describing the impact of computer activities and utilizations at school on achievement and motivation in different subject matter. However, little is known about the impact of personal uses of computer on school experience. Moreover, despite an increase of households with computers, not every child has the same opportunity to use them. These children do not develop their computer literacy outside school, and this phenomenon could have an effect on academic related tasks. Some studies have focused on the effect of computers (their presence and use) on academic performance. Although they are unanimous about the positive impact of computers, researchers remain cautious in their conclusions (Beltran et al., 2008; OCDE, 2006). They stress that a direct cause to effect relation is not easy to establish. Moreover, those studies mainly examined school achievement. We wanted to address the issue differently: to determine the relation between personal computer uses and motivation at school. For this purpose, motivation in sciences was chosen. This subject matter often requires skills associated with ICT and computers. To do so, 331 students from public high schools in the Montreal area, in the regular sciences classes in 7th and 8th grade were selected. They completed a questionnaire composed of 7 motivational scales and several ICT usages questions. To meet our objectives, we established ICT profiles, based on personal uses of computer. With those profiles, we examined differences within motivational characteristics (competence beliefs, anxiety, interest and achievement goals) and commitment for the sciences courses. Our results show that time spent on personal computer use does not necessarily have a negative impact on school. We found that students who frequently use computers in their spare time, with a variety of usage, have more positive motivational characteristics. However, by delving deeper in our results, we found that the type of uses could be linked to positive or negative inducing effects on the motivation to learn. Indeed, students who use computers mostly for communication and playing games have less motivation that student with more various usages. Moreover, communication uses seem to be the most problematic type of usage while uses with intellectual nature have a more positive effect. Our study found that having a computer at home is not a synonym of frequent usage by young people. Our results suggest that the key to motivational success is the use made of the time spent in front of the computer not only the time spent. By encouraging uses of intellectual nature, we increase chances of developing positive technological habits that will be essential in tomorrow’s society.

La plupart des travaux portant sur l’usage du français en milieu de travail tendent à adopter une perspective métrologique qui vise à cerner les déterminants de l’utilisation du français en milieu de travail. Dans ce mémoire, nous cherchons à changer d’optique en envisageant non pas d’expliquer les déterminants de l’usage principal du français en milieu de travail, mais à connaitre les principaux contextes auxquels les personnes se réfèrent pour déclarer le français comme langue principale de travail. Nous faisons en effet l’hypothèse que le fait de déclarer le français comme langue principale de travail est le résultat d’une synthèse de pratiques linguistiques contextuelles distinctes. Pour répondre à cet objectif de recherche, nous mobilisons les données d’une enquête de l’Office québécois de la langue française réalisée en 2007. Au sein de l’ensemble des contextes de travail pris en compte dans cette enquête, nous avons choisi cinq contextes : la réunion de travail, la lecture de documents produits par l’entreprise, le fait de communiquer avec l’extérieur, le fait de communiquer avec le ou les supérieurs immédiats et l’utilisation des technologies de l’information. Ainsi, nous nous sommes limités d’abord à l’étude d’un certain nombre de contextes qui touchent presqu’à l’ensemble des travailleurs particulièrement ceux qui ont à communiquer avec des supérieurs, à lire des documents produits par leur entreprise, à participer régulièrement à des réunions de travail, puis nous abordons des contextes plus spécifiques et qui touchent à un nombre plus faible de travailleurs tels : ceux qui ont à utiliser des logiciels et enfin à communiquer avec l’extérieur. Notre analyse révèle que, au-delà des caractéristiques individuelles et du contexte général du milieu de travail, ces usages contextuels des langues en milieu de travail prédisent mieux la déclaration de la langue de travail des travailleurs. Quand il s’agit de déclarer la langue principale de travail, les travailleurs semblent principalement faire référence à la langue qu’ils utilisent dans les réunions de travail, dans la langue de lecture des documents produits par l’entreprise, dans les communications avec les supérieurs immédiats ainsi qu’aux versions linguistiques des logiciels utilisés et des communications avec des clients et fournisseurs de l’extérieur du Québec. / Most researches on the use of French in the workplace tend to adopt a methodological perspective that aims to identify the determinant factors of the use of French in the workplace. In this paper, we intend to change this perspective by attempting instead, to apprehend the main contexts in which people relate to declare French as their language of work. We make the assumption that declaring French as the main language of work result of both contextual and distinct linguistic practices. To meet this research objective, we draw data from a survey conducted in 2007 by the Office of the French Language in Quebec. Based on this survey, we have selected five contexts to which people relate to when using the French language in the workplace: workshop, reading of documents produced by the company, communication with the outside world, communication with immediate supervisors, and the use of technology of information. Thus, we have limited ourselves to the study of workers that have to communicate with supervisors, read documents produced by their company, participate regularly in meeting, use software, and finally communicate with other people from the outside. Our analysis reveals that, beyond individual characteristics and the general context of the workplace, these contextual uses of language in the workplace predict the best statement of the language of workers. When it comes to declare the main language of work, workers seem mainly to refer to the language they use in meetings, in the language of reading documents produced by the company in communications with immediate superiors and to use language versions of software and communications with customers and suppliers outside of Quebec.

本研究從「使用與滿足」理論，以警察廣播電臺為探討的對象，研究聽眾願意主動提供路況資訊的使用動機與滿足程度。 警察廣播電臺為公營廣播媒體，節目內容以治安交通等公共服務為主。警廣自1971年設立第一座交通專業電臺臺北臺，以電話接收聽眾提供路況；於1996年率先啟用智慧型電話系統，將全省免付費路況提供專線統一為0800000123，受理來自全省各地聽眾提供即時路況。近年來，路況報導為廣播閱聽眾收聽廣播的重要因素之一，且從幾次重大的意外災害發生後，警廣很快的從聽眾提供的資訊掌握災情，聽眾主動提供的資訊發揮了功能。 本研究以量化研究方式，採用問卷調查法。研究結果發現，聽眾願意主動提供路況的動機，分別為「分享參與」、「資訊守望」、「人際連絡」、「尋求解決困難的方法」以及「個人化需求」等五個構面。並且想知道即時的路況是聽眾收聽警廣最主要的動機。 關鍵詞：使用與滿足、主動的閱聽人、廣播、路況報導 / Radio Listener’s Media Use and Gratification－ Example of the Police Broadcasting Service Abstract This study employs 「uses and gratifications」theory to investigate motivations for actively providing road condition information and resulting gratification among listeners of Police Broadcasting Service. Police Broadcasting Service is a public radio station with program content chiefly comprising public service matters connected with law and order and transportation. Since it established Taiwan's first specialized traffic station—Taipei Station—in 1971, Police Broadcasting Service has received telephone reports of road conditions from listeners. The station launched the 0800000123 smart phone system—Taiwan's first—in 1996, to provide a Taiwan-wide toll-free road condition hotline to accept real-time road condition reports from listeners throughout Taiwan. In recent years, the station's road reports have become one of the most important factors causing the public to listen to the station. Furthermore, after several major accidents that occurred in the past, Police Broadcasting Service quickly gained a picture of the situation from information provided by listeners, showing that the voluntary provision of information by listeners is very effective. This study employed a quantitative research approach and used the questionnaire survey method. The study's findings indicated that listeners' motivations for actively providing road information included the five aspects of 「shared participation」, 「information watchman」, 「interpersonal contact」,「looking for means of solving problems」, and 「individual needs」. Furthermore, wishing to hear real-time road conditions constitutes listeners' chief motivation for listening to Police Broadcasting Service. Keywords: uses and gratifications、active audience、listeners、radio station、road condition report

No description available.