We-Intention to Use Instant Messaging for Collaboration: A Social Influence Model

The purpose of this study is to introduce the concept of “we-intention” into group technology adoption and diffusion research. In this study, we examined the “we-intention” of using instant messaging for team collaboration. Building upon the social influence framework, a we-intention model is developed and tested with 163 respondents. The research model explained 41.3% of the variance in we-intention. Attitude, group norm and social identity were found to be statistically significant in determining we-intention to use instant messaging for collaboration, and value perception had significant effects on attitude and social influence factors. We believe that the implications of this study are important for both researchers and practitioners

An Investigation into Contribution I-Intention and We-Intention in Open Web-Based Encyclopedia: Roles of Joint Commitment and Mutual Agreement

In the current study, knowledge contribution in open web-based encyclopedia is conceptualized as a group-referent intentional social action, and we-intention, which reflects one’s perception of the group acting as a unit, has been employed. The motivation of this study thus is to better understand antecedents and consequences of contribution I-intention and we-intention in open web-based encyclopedia. A research model was developed and empirically examined with 202 knowledge contributors in two most famous wiki communities in Mainland China. The results demonstrated that personal outcome expectations exert significant effects on both intentions. Joint commitment, mutual agreement and community-related outcome expectations are significantly related to we-intention to contribute, but not related to I-intention. In addition, we-intention has a statistically significant positive effect on contribution behavior. However, I-intention negatively relates to contribution behavior. We believe this study will serve as a starting point for furthering our limited understanding of the intentional social action in knowledge management research

Heavy quarkonium: progress, puzzles, and opportunities

A golden age for heavy quarkonium physics dawned a decade ago, initiated by the confluence of exciting advances in quantum chromodynamics (QCD) and an explosion of related experimental activity. The early years of this period were chronicled in the Quarkonium Working Group (QWG) CERN Yellow Report (YR) in 2004, which presented a comprehensive review of the status of the field at that time and provided specific recommendations for further progress. However, the broad spectrum of subsequent breakthroughs, surprises, and continuing puzzles could only be partially anticipated. Since the release of the YR, the BESII program concluded only to give birth to BESIII; the $B$-factories and CLEO-c flourished; quarkonium production and polarization measurements at HERA and the Tevatron matured; and heavy-ion collisions at RHIC have opened a window on the deconfinement regime. All these experiments leave legacies of quality, precision, and unsolved mysteries for quarkonium physics, and therefore beg for continuing investigations. The plethora of newly-found quarkonium-like states unleashed a flood of theoretical investigations into new forms of matter such as quark-gluon hybrids, mesonic molecules, and tetraquarks. Measurements of the spectroscopy, decays, production, and in-medium behavior of c\bar{c}, b\bar{b}, and b\bar{c} bound states have been shown to validate some theoretical approaches to QCD and highlight lack of quantitative success for others. The intriguing details of quarkonium suppression in heavy-ion collisions that have emerged from RHIC have elevated the importance of separating hot- and cold-nuclear-matter effects in quark-gluon plasma studies. This review systematically addresses all these matters and concludes by prioritizing directions for ongoing and future efforts.Comment: 182 pages, 112 figures. Editors: N. Brambilla, S. Eidelman, B. K. Heltsley, R. Vogt. Section Coordinators: G. T. Bodwin, E. Eichten, A. D. Frawley, A. B. Meyer, R. E. Mitchell, V. Papadimitriou, P. Petreczky, A. A. Petrov, P. Robbe, A. Vair