More about Vacuum Spacetimes with Toroidal Null Infinities

Recently Bernd Schmidt has given three explicit examples of spacetimes with toroidal null infinities. In this paper all solutions with a toroidal null infinity within Schmidt's metric ansatz (polarized Gowdy models) are constructed. The members of the family are determined by two smooth functions of one variable. For the unpolarized Gowdy models the same kind of analysis carries through.Comment: 5 page

Correlations of chiral condensates and quark number densities with static quark sources

We investigate correlation functions of the Polyakov loop and static meson/diquark systems with the chiral condensate and the quark number density at finite temperature. In particular the latter observable can give insight in the mechanism of screening and string breaking at finite temperature. We use for our analysis gauge field configurations generated in 2+1 flavor QCD with an improved staggered fermion action with almost physical light quark masses and a physical value of the strange quark mass on lattices with temporal extent Nt=4 and 6.Comment: 7 pages, 6 figures, presented at the XXV International Symposium on Lattice Field Theory, July 30 - August 4 2007, Regensburg, German

The Development of a Fluorescent Calcium Indicator

Undergraduate Basi

A History of Christian Publishing

This essay will address the histories of four major publishing companies in Grand Rapids: Zondervan, Baker, Eerdmans, and Kregel. These publishing companies, through their individual and interwoven histories have shaped and sustained the publishing industry in the Midwest, and Grand Rapids in particular. These publishing houses are significant to the history of books and publishing because, for roughly a century, these publishing houses have been producing Bibles and other evangelical materials that are educating people the world over, from the youngest Sunday school pupils to the oldest seminarian. Finally, the paper will discuss the impact these companies had collectively on the world of theological books and publishing, and will briefly touch on the state of each company toda

The agony of truth: martyrdom, violence, and Christian ways of knowing

Paper presented at the conf Faith, freedom and the academy: the idea of the university in the 21st century, Univ of Prince Edward Island, O 1-3 2004

Rethinking High School: An Introduction to New York City's Experience

Provides a review of the small school movement in New York City and highlights the early successes achieved at Marble Hill School for International Studies, located in the Bronx

Cultural evolution and prosociality: widening the hypothesis space

Norenzayan and colleagues suggest that Big Gods can be replaced by Big Governments. We examine forms of social and self-monitoring and ritual practice that emerged in Classical China, heterarchical societies like those that emerged in pre-Columbian Mesoamerica, and the contemporary Zapatista movement of Chiapas, and we recommend widening the hypothesis space to include these alternative forms of social organization