The purpose of this study was to provide a clearer understanding of current Korean American adolescents under the recognition that their stories are barely told in educational research. Based on the literature that has described identity as a core concept in understanding adolescence and literacy practice as a dominant tool for identity construction, this study focused on Korean American adolescents' identity construction through their self-directed Internet literacy practices. Four Korean American adolescents living in a mid-size city in the Southwest participated in this study for several months. Data sources included face-to-face interviews, literacy practice logs, participants' literacy products on the Internet, online chat logs, and emails. Collected data were analyzed based on the constant comparative method. Results showed that these youth are active meaning makers with agency, that they constructed multiple, fluid identities within their sociocultural context, and utilized the Internet to stage these identities strategically. The result of this study implies a successful pedagogy needs to begin with careful consideration of each student's changeability and complexity by removing the labels imposed on them related to their ethnicity, race, gender, class, and so forth. This study also implies that literacy researchers' contribution, as messengers of adolescents' literacy practices outside of school, is critical for the a clearer understanding of adolescents. Finally, this study suggests that Korean American community take more interest in diverse voices among Korean American adolescents in the era of globalization. / text

This thesis examines the consumption of the Internet by household families. It is based on data collected in Canberra; 689 responses to a self-completion survey to parents on attitudes to, and use of, the Internet and more than 75 interviews with members of 19 household families who had the Internet connected at home. (For complete abstract open document)

Die Arbeit befasst sich mit der Internetnutzung von psychiatrischen Patienten. Das Angebot an Therapien für Patienten mit psychiatrischen Erkrankungen steigt seit Jahren. Auch die Menge an Informationen, welche vor allem online zu bekommen sind, wird immer größer. Allerdings gibt es nur wenige Informationen zur Internetnutzung von psychiatrischen Patienten im Vergleich zur Gesamtbevölkerung. Sind psychiatrische Patienten bezüglich Zugang zum Internet und Nutzung von Internetinformationen und -therapien benachteiligt?

Das Internet ist in aller Munde. Als neues Medium bietet es vielfältige Möglichkeiten der Kommunikation und der Informationsbeschaffung. Doch wird wirklich das geboten, was die Nutzer wollen? Wollen private Internet-Nutzer nur Unterhaltung, aber nichts kaufen? Wozu nutzen Geschäftsleute das Internet? Wie weit ist die Kundenorientierung von Internet-Dienstleistungen fortgeschritten? Wie soll die ideale Homepage gestaltet sein? Im Mittelpunkt dieses Projekts stehen damit - im Gegensatz zu vorliegenden Untersuchungen - die Anwendungswünsche privater und geschäftlicher Nutzer.

Employees' social media use and its potential links with work-related outcomes have received significant scholarly attention in recent years. The existing studies, however, demonstrated mixed findings and the impact of social media use on employee outcomes remains inconclusive. The current debate on employees' social media use points to the need for a meta-analysis on this particular issue, as it could help provide a more conclusive summary to resolve the inconsistency across studies. This meta-analysis study reviewed empirical studies published in peer-reviewed journals from 2009 to 2018 with the aim to provide robust conclusions about the relationships between employees' social media use and employee outcomes (i.e., job performance, innovative performance, job satisfaction, work engagement, emotional exhaustion and work-life conflict) and to explore the moderators of these associations. A total of 29 journal articles were examined in this thesis. The results of the random-effects model suggested that social media use, in general, has positive and small effects on job performance, job satisfaction, work engagement, and work-life conflict. Its effect on emotional exhaustion, however, was significant but negligible. In addition, a positive but non-significant association was found between social media use and innovative performance. The sub-group and meta-regression analyses further identified the moderators among the positive associations found. Specifically, purpose of social media use and culture moderated the effects of social media use on both job performance and job satisfaction; job position moderated the association between social media use and job satisfaction. The theoretical and practical implications from the results of this study, the limitations of the present meta-analysis, and directions for future research were discussed.

Pornography use has become widespread and mainstream in American society, with estimates that 60% of men and 35% of women have viewed pornography at some time in the last year. Pornography use has been associated with both positive and negative outcomes depending on the user, and some of these conflicting results may stem from problematic measurement. Using a newly validated measure that assesses frequency, duration, arousal, and deliberate or accidental exposure to seven common types of pornography, we sought to understand if the motivations to view pornography differed depending on biological sex of the user and the type of use he or she engaged in. With an MTurk.com sample of 312 participants, we used a variable selection to explore the most consistent predictors of pornography use. Results found that sexually based motivations were consistent motivations to use pornography for both males and females. Educationally based motivations reliably predicted accidental exposure to pornography, while emotions like sadness and tiredness reliably predicted longer durations of pornography use. These results indicate that motivations to view pornography are similar for males and females, and that sexually based reasons and emotions are primary in an individual's decision to use pornography.

<div> In the first chapter, I document that online feedback loops, such as search engines, drive customers and revenue to prominent firms, contributing to rising industry concentration. To identify prominent firms online, I measure centrality in a network of firm websites covering more than 100,000 public and private firms. Industries with firms that are more central become more concentrated and central firms increase their market share during the sample period. This appears to be due to firms' ability to meet earnings expectations. Central firms become more profitable and peripheral firms earn negative risk-adjusted returns and underperform earnings forecasts. Evidence from the COVID-19 shutdown, which drove economic activity to the Internet, supports these conclusions. Central firms received the vast majority of the influx of web traffic and had significantly higher returns during the shutdown.</div><div> </div><div> In the second chapter, I create a novel definition of peer groups (web-based peers) for over 100,000 public and private firms by extracting clusters from a network of firm websites. The network is built from unique data on overlapping web traffic. Peer firms are therefore more likely to have similar website users, and by extension, provide similar products or services. Web-based peer groups are related to traditional industry classifications, the preferred choice when defining industries for private firms, but outperform them in standard benchmarking tests. To further demonstrate the benefits of web-based peer groups, I examine IPO waves. IPO activity is closely related to peer-firm IPO activity in the past 12 months, controlling for the overall IPO market and waves within traditional industries. IPO followers earn lower post-IPO returns up to three months after going public, consistent with these firms being lower quality and attempting to benefit from the successful IPOs of their peers.</div>

京都大学 / 新制・課程博士 / 博士(地球環境学) / 甲第24951号 / 地環博第242号 / 新制||地環||48(附属図書館) / 京都大学大学院地球環境学舎地球環境学専攻 / (主査)教授 星野 敏, 准教授 鬼塚 健一郎, 教授 西前 出 / 学位規則第4条第1項該当 / Doctor of Global Environmental Studies / Kyoto University / DFAM

The current generation of college students commonly use the Internet for sexual purposes (Boies, 2002; Boies, Cooper, & Osborne, 2004), including finding sexual partners, searching for sex-related information, and viewing sexually explicit materials (SEM) (Boies, 2002). Yet, some authors have suggested that the use of the Internet for sexual purposes might lead to psychological problems (Cooper et al., 2001). However, it is unclear if the problems that are commonly reported (i.e., Internet dependency, isolation, and psychological distress) are caused by using the Internet for sexual purposes. Hence, it is important to examine how college students use the Internet for sexual purposes cross-culturally to determine how common the practice is, how it relates to maladjustment, and to examine if any culture variables are associated with use. Undergraduate students (n = 320) from a public university in the United States and Peruvian undergraduate students (n = 135) from a public university in Lima, Peru filled out questionnaires addressing their online sexual activities, psychological adjustment, and family communication. Peruvian young adults used the Internet significantly more than U.S. young adults to view SEM, find sexual partners, and search for sex-related information. Men, regardless of nationality, used the Internet to view SEM significantly more than women. Peruvian women used the Internet significantly more to view SEM and find sexual partners than U.S. women. Social support, religiosity, and erotophilia were found to moderate the relations between nationality and OSA. Further, for Peruvians and U.S. young adults, using the Internet for OSA was associated with mild distress, but no serious psychological maladjustment. Implications for college students are discussed.

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