Virtumart Video Tutorial — How to Install Joomla and Virtuma
virtuemart
5 min – 14-Dec-07

Virtuemart Video Tutorial — How to Install Joomla and Virtumart
This tutorial covers how to install WAMP local server on your desktop. Also covers how to configure WAMP and start a full working Apache-Mysql-Php web server for your desktop Read the rest of this entry »

Edubuntu Synaptic Package Mngr for Apache, MySQL and PHP5
Dennis Daniels and Demostudio and VNC
11 min – 19-Jan-06

This tutorial walks you through getting Apache, MySQL and PHP5 via the synaptic package manager.

The Edubuntu community is built on the ideas enshrined in the Edubuntu Manifesto: that software should be available free of charge, that software tools should be usable by people in their local language and despite any disabilities, and that people should have the freedom to customise and alter their software in whatever way they see fit.
–http://www.edubuntu.org/

I made this video by VNCing from my XP machine over to my Edubuntu machine on my network. I recorded the VNC session using Demostudio. If there was an equally easy to use and powerful screencasting tool for Linux that offered mpeg recording then I’d use that instead. Please post your own screencasts on how to use Linux! There are so many curious people about Linux but many have never seen it in action! Make a screen cast and post your own successes, and failures, under Linux.

keywords: software, training, tutorial, evangelism, screencast, OSS, network, education, Linux, ubuntu, Gnome, desktop, productivity, LTSP, thin client, server, apache, synaptic, mysql Read the rest of this entry »

Core Patterns for Web Permissions
Google engEDU
56 min – Jul 19, 2006

Google TechTalks
July 19, 2006

Tyler Close

Visiting Scientist Hewlett-Packard Laboratories

Mr. Close is a researcher and developer, working in the field of secure, multi-user, distributed applications since 1998.

ABSTRACT
In Authorization Based Access Control (ABAC) systems built with object-capabilities, an access policy is expressed by the shape of a reference graph: what a user can do is determined by where they are in the reference graph and what other parts of the graph are reachable from that point. By applying some basic cryptography to create links that act as "webkeys", we can construct URL graphs that are compatible with today’s WWW infrastructure and additionally provide the properties of distributed capabilities. Webkeys enable users to achieve password-free fine-grain access control implicitly, simply by sending one another links to the pages they want to share. The webkey approach simultaneously provides developers with a powerful, and readily audited, access-control model.

In this talk, we’ll study the implementation of the CapWiki, which can serve as a private data space, a locally shared data space, a blog, and a wiki, simply by varying which links have been distributed to which people. Read the rest of this entry »

When is a Googol Not Enough?
Google engEDU
55 min – May 24, 2006

Google TechTalks
May 24, 2006

Washington Taylor

ABSTRACT
Recent developments in string theory, combined with the experimental observation that the rate of expansion of the universe is increasing, have led theoretical physicists to a radical (and controversial) new picture of the universe. In this new picture, the universe is enormously larger than our parochial observable region of radius 13.7 light years.

In other patches of the universe, the laws of physics may be quite different, though in each patch the local physics is governed by a metastable solution of string theory. Since there may be something like $10^{1000}$ or more distinct solutions of string theory giving physics roughly like that we observe, to make physical predictions we need to classify enormous numbers of possible solutions.

In this talk this new theoretical picture of cosmology will be described, and related computational problems will be discussed. Read the rest of this entry »

New Frontiers in Astronomy: Hubble and Beyond
Google engEDU
57 min – Apr 11, 2006

Google TechTalks
April 11, 2006

Alberto Conti
Carol Christian

ABSTRACT
A revolution is now underway in Astronomy and Astrophysics. The next decade will witness the completion of massive, wide-area, multicolor imaging and spectroscopic surveys of the local and distant Universe.

With its strong legacy of public outreach, Hubble’s Space Telescope Science Institute (STScI) has been responsible for how most of the world views our universe. We recognize that, given the coming flood of information, the next step of this task is to allow users to actively explore the cosmos themselves. In this talk we hope to show some of the potential explorations of this wealth of data to help us all better understand and appreciate the universe in which we live. We will explore several facets of using the Multi-mission Archive at Space Telescope’s (MAST) along with other survey mission such as the Sloan Digital Sky Survey can be combined with these holdings to do new and previously unattainable projects.

And finally we will discuss how the current trend of data source unification, as being explored by the International Virtual Observatory Affiliation (IVOA) members will help astronomy tackle the oncoming tsunami of data. Read the rest of this entry »