Lecture capture using large interactive display systems

There are various software technologies that allow capture and redelivery of lectures. Most of these technologies however rely on the use of proprietary software, often requiring extra efforts from the lecturer in terms of the initial preparation of the lecture material, or in editing and annotating after the lecture to make the material suitable for the students. To review the material students then require access to the proprietary software. This paper describes a system for the lightweight capture of lecture presentations, based on the use of a low-cost large interactive display surface, together with standard Microsoft PowerPoint™ presentation software. The captured version of the presentation includes the original lecture slides, graphical annotations made by the lecturer during the lecture, and the audio recording of the lecture; all saved as a PowerPoint file. In addition, the system adds some annotations and index slides to allow quick and easy access to different segments of the presentation. Presentations can be replayed in part or in full as required, preserving all of the content of the live lecture

On gg-functions for subshifts

A necessary and sufficient condition is given for a subshift presentation to have a continuous $g$-function. An invariant necessary and sufficient condition is formulated for a subshift to posses a presentation that has a continuous $g$-function.Comment: Published at http://dx.doi.org/10.1214/074921706000000329 in the IMS Lecture Notes--Monograph Series (http://www.imstat.org/publications/lecnotes.htm) by the Institute of Mathematical Statistics (http://www.imstat.org

An introduction to relativistic hydrodynamics

This lecture provides some introduction to perfect fluid dynamics within the framework of general relativity. The presentation is based on the Carter-Lichnerowicz approach. It has the advantage over the more traditional approach of leading very straightforwardly to important conservation laws, such as the relativistic generalizations of Bernoulli's theorem or Kelvin's circulation theorem. It also permits to get easily first integrals of motion which are particularly useful for computing equilibrium configurations of relativistic stars in rotation or in binary systems. The presentation is relatively self-contained and does not require any a priori knowledge of general relativity. In particular, the three types of derivatives involved in relativistic hydrodynamics are introduced in detail: this concerns the Lie, exterior and covariant derivatives.Comment: 37 pages, 5 figures, lecture given at the School "Astrophysical Fluid Dynamics" (Cargese, France, 9-13 May 2005) organized by B. Dubrulle & M. Rieutord (EDP Sciences, in press

Role of online presentation archiving facilities as otolaryngology knowledge base

Presentation is a powerful teaching tool. Every teacher would love to support his lecture with presentation aids. Eventhough these presentations are created using standalone tools likepresentation software, these presentations need to be archived for future retrieval. Till a few years ago faculty used to carry their presentations in the form of slides, which used to be cumbersome.Presentations using photographic slides were rigid offering no flexibility to the speaker. Now with the increasing use of computers and laptops digital presentations are becoming the order of the day.Today's teachers are expected to be comfortable with presentation software and their use. This study was performed to assess the awareness of faculty about online presentation archiving facilities. Questionnaires were used to elicit responses from faculty. This study revealed that only10% of the faculty questioned knew about the online storage facilities and only 2% of them are regularly archiving their presentation. This study concludes that more needs to be done in creating awareness among faculty regarding online presentation storage facilites available.

Multivalent glycan arrays

Glycan microarrays have become a powerful technology to study biological processes, such as cell–cell interaction, inflammation, and infections. Yet, several challenges, especially in multivalent display, remain. In this introductory lecture we discuss the state-of-the-art glycan microarray technology, with emphasis on novel approaches to access collections of pure glycans and their immobilization on surfaces. Future directions to mimic the natural glycan presentation on an array format, as well as in situ generation of combinatorial glycan collections, are discussed