Since 2002 Perimeter Institute has been recording seminars, conference talks, and public outreach events using video cameras installed in our lecture theatres. Perimeter now has 7 formal presentation spaces for its many scientific conferences, seminars, workshops and educational outreach activities, all with advanced audio-visual technical capabilities. Recordings of events in these areas are all available On-Demand from this Video Library and on Perimeter Institute Recorded Seminar Archive (PIRSA). PIRSA is a permanent, free, searchable, and citable archive of recorded seminars from relevant bodies in physics. This resource has been partially modelled after Cornell University's arXiv.org.
I will report on some work in progress with Dan Freed and Greg Moore. In an orientifold background, D-brane charge takes values in a certain twisted version of KR Theory. Moreover, there is a nontrivial background charge (\'tadpole\'). Up \'til now, this background charge has only been calculated rationally -- i.e., ignoring torsion. We derive a formula for it, over the integers. Only after \'inverting 2\', does the charge localize to the fixed point sets of the orientifold action, and we can give a compact formula for it.
The shift from print to online has already created a revolution in scientific communication, but it is far from complete. Among other effects, it has brought huge opportunities and threats to incumbent publishers. This talk will discuss the imperative for publishers to keep moving forward if they are to maintain their relevance in this new world.
This talk will review the public impact of developments in open access to research on education, professional practice, and public policy, with consideration given to legal, economic, and academic freedom issues, as well as to the very design of scholarly communication systems.
In the 1990s, the eprint arXivs fundamentally reshaped scientific communication in Math and Physics. In this decade, blogs, wikis and other, similar, tools are mediating an equally profound reshaping of scientific communication. I will talk about my own experience, as a blogger, software designer, and physicist, pointing to some of the successes and some of the challenges ahead.
At a time when the great challenges facing our civilization are scientific in nature (climate change, sustainable energy, pandemic disease), improving the voting public\'s understanding and appreciation of science is more important than ever. I will argue that the Internet in general and weblogs specifically provide an opportunity to address this problem, both through bringing science outreach directly to the public, but also by humanizing scientists to the public.
This course is aimed at advanced undergraduate and beginning graduate students, and is inspired by a book by the same title, written by Padmanabhan. Each session consists of solving one or two pre-determined problems, which is done by a randomly picked student. While the problems introduce various subjects in Astrophysics and Cosmology, they do not serve as replacement for standard courses in these subjects, and are rather aimed at educating students with hands-on analytic/numerical skills to attack new problems.