We examine two factors that might explain the extent of air traffic delays in the United States: network benefits due to hubbing and congestion externalities. Airline hubs enable passengers to cross-connect to many destinations, thus creating network benefits that increase in the number of markets served from the hub. Delays are the equilibrium outcome of a hub airline equating high marginal be...

ERCIM News is the magazine of ERCIM. Published quarterly, it reports on joint actions of the ERCIM partners, and aims to reflect the contribution made by ERCIM to the European Community in Information Technology and Applied Mathematics. Through short articles and news items, it provides a forum for the exchange of information between the institutes and also with the wider scientific community. ...

whom you ask—is the next generation of optical disc storage technology. It's essentially a bigger, faster compact disc that can hold video as well as audio and computer data. DVD aims to encompass home entertainment, computers, and business information with a single digital format, eventually replacing audio CD, videotape, laser disc, CD-ROM, and perhaps even video game cartridges. DVD has wide...

background and purpose: active learning, combined with computer-assisted instruction, can enhance medical students’ performance and learning. this article is an attempt to introduce a new web-based approach to information technology instruction for medical students. methods: eight topics were selected to be instructed in web-based workshops. phpbb forum was used for web-based collaborative lear...

This paper deals with the emergence of the role of host in a non-moderated usenet newsgroup. First, we will define the specific features of a newsgroup as a digital document. Secondly, through the conversational analysis of a French-speaking non-moderated newsgroup, we will describe the way an user of a newsgroup can play the role of “occasional host”, adopting a particular interactional behavi...

Forum lingkar pena (FLP) didirikan oleh pesantren Darul Ulum agar para santri melek literasi dan nomerasi, tidak hanya cerdas soal ilmu agama, melainkan juga secara sosial. Focus penelitian ini adalah kegiatan FLP, bentuk digital yang diterapkan, tantangan serta solusi dalam menerapkan digital. Metode menggunakan kualitatif dengan jenis purposif sumpling pengambilan data. Pengumpulan data tekni...