Simplicial volume of Q-rank one locally symmetric manifolds covered by the product of R-rank one symmetric spaces

In this paper, we show that the simplicial volume of Q-rank one locally symmetric spaces covered by the product of R-rank one symmetric spaces is strictly positive

Teaching Patrons to Fish: The Educational Value of Cancelling Requests for Locally Available Materials

Expansive document delivery service for locally available materials is becoming increasingly popular, but is a learning component lost with the implementation of this service? In this study, the authors compare data from two institutions, one that provides an unadvertised document delivery service without instruction, and another that cancels requests for locally available materials with an instructional component. The behavior of each institution\u27s patrons over a 4-year period is analyzed and found to differ at statistically significant levels. These findings will be useful for interlibrary loan policy makers who are considering whether to implement document delivery for locally available items

Knight News Challenge: Casting the Net Wide for Innovation

Reviews the evolution of the Knight News Challenge contest for experimental projects in digital delivery of news and information to local communities, profiles winning projects and explores the grants' impact, and considers issues of sustainability

Homeland Defense and Democratic Liberties: An American Balance in Danger?

Explores issues such as surveillance of people and the means they can use to create havoc; potential infringements on privacy; democracies' responses to terrorism; and the need to maintain a balance between security and American civil rights

Journalism in the Service of Democracy: A Summit of Deans, Faculty, Students and Journalists

Distills discussions at a January 2008 conference to assess the future of journalism, including topics such as reinventing journalism education, reinvigorating the news environment, and opportunities in new media. Includes highlights of breakout sessions

Drinking From the Fire Hoses at Future of News and Civic Media Conference 3.0

A companion report to "Knight News Challenge: Casting the Net Wide for Innovation," describes Knight's fourth News Challenge winners, their media projects, and discussions and tweets from a June 2010 conference on trends in and potential for civic media

On Using Curvature to Demonstrate Stability

A new approach for demonstrating the global stability of ordinary differential equations is given. It is shown that if the curvature of solutions is bounded on some set, then any nonconstant orbits that remain in the set, must contain points that lie some minimum distance apart from each other. This is used to establish a negative-criterion for periodic orbits. This is extended to give a method of proving an equilibrium to be globally stable. The approach can also be used to rule out the sudden appearance of large-amplitude periodic orbits

Global Stability for an SEIR Epidemiological Model with Varying Infectivity and Infinite Delay

A recent paper (Math. Biosci. and Eng. (2008) 5:389-402) presented an SEIR model using an infinite delay to account for varying infectivity. The analysis in that paper did not resolve the global dynamics for R0 \u3e 1. Here, we show that the endemic equilibrium is globally stable for R0 \u3e 1. The proof uses a Lyapunov functional that includes an integral over all previous states

Survey of Web Developers in Academic Libraries

A survey was sent to library web designers from randomly selected institutions to determine the background, tools, and methods used by those designers. Results, grouped by Carnegie Classification type, indicated that larger schools were not necessarily working with more resources or more advanced levels of technology than other institutions