This paper reports the results of a comparison-based empirical study on the applicability of the end-user Quality of Experience-based content adaptation mechanism in adaptive educational hypermedia. The focus of the paper will be the experiment itself: the initial settings, testing scenarios and the results. We will show that for low bit rate connections the QoE-based adaptation decreases study...

Various news sites exist today where internet users can read the most recent news and people’s opinions about. However, usually these sites do not organize comments well and do not filter irrelevant content. Due to this limitation, readers who wonder about people’s opinion regarding some specific topic, have to manually follow relevant comments, reading and filtering a lot of irrelevant text. I...

Massive Online Open Courses (MOOCs) can create large scale communities of learners who collaborate, interact and discuss learning materials and activities. MOOCs are often delivered multiple times with similar content to different cohorts of learners. However, research into the differences of learner communication, behavior and expectation between multiple presentations is scarce. This is of im...

The Royal Institute Elcano† (Real Instituto Elcano) in Spain is a prestigious independent political institute whose mission is to comment on the political situation in the world focusing on its relation to Spain. As part of its dissemination strategy it operates a public website. The online content can be accessed by navigating through categories or by a keyword-based, full text search engine. ...

, 1072-e (2009); 325 Science et al. Heather M. Whitney, Animal Pollinators" Produced by Diffractive Optics, Acts As a Cue for Response to Comment on "Floral Iridescence, www.sciencemag.org (this information is current as of August 28, 2009 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/325/5944/1072-e version of this article...

We thank Reviewer #1 for his constructive comments. * We agree that BV/TV often correlates with measurements of BMD. However, bone volume and bone mineral density represent different aspects of the bone, and do not necessarily have to correlate. Bone mineral density evaluates the mineral content of the bone, while bone volume is the space occupied by the bone, regardless of the mineral content....

This review discusses the relationships between religion, spirituality, and psychosis. Based on the DSM-IV, we comment on the concept of spiritual and religious problems, which, although they may seem to be psychotic episodes, are actually manifestations of nonpathological spiritual and religious experiences. Studies reporting that hallucinations also occur in the nonclinical population and thu...

Traditionally, the oxygen content of blood has been determined by the Van Slyke vacuum extraction and manometric method. This method, although offering good accuracy and precision, suffers from several disadvantages. The operator needs extensive training and practice, the apparatus needs careful handling and cleaning, and the reagents must be made frequently and degassed. An instrument (“Lex-02...

Understanding the nature and structure of web traffic is essential for valid simulations of networking technologies that affect the end-to-end performance of HTTP connections. We provide data suitable for the construction of synthetic web traffic generators and in doing so retrospectively examine the evolution of web traffic. We use a simple and efficient analysis methodology based on the exami...

YouPorn is one of the largest providers of adult content on the web. Being free of charge, the video portal allows users besides watching to upload, categorize and comment on pornographic videos. With this position paper, we point out the challenges of analyzing the textual data offered with the videos. We report on first experiments and problems with our YouPorn dataset, which we extracted fro...