Multigrid Monte Carlo in the Sine Gordon model

We pose two questions about the dynamical critical behavior of multigrid Monte Carlo: Will a multigrid Monte Carlo simulation of the two dimensional Sine Gordon model exhibit critical slowing down, as expected by a theoretical analysis of Metropolis acceptance rates? Can we reduce critical slowing down caused by decreasing acceptance rates on large blocks by performing more updates on coarser lattices? To this end we simulate the model with a W-cycle (gamma = 2) and a higher cycle with gamma = 4 using piecewise constant interpolation. The answer to the first question is positive, the answer to the second one is negative.Comment: 3 pages in ps-format, to appear in the Proceedings of LATTICE 93, Dallas, USA, October 199

Multigrid Monte Carlo with higher cycles in the Sine Gordon model

We study the dynamical critical behavior of multigrid Monte Carlo for the two dimensional Sine Gordon model on lattices up to 128 x 128. Using piecewise constant interpolation, we perform a W-cycle (gamma=2). We examine whether one can reduce critical slowing down caused by decreasing acceptance rates on large blocks by doing more work on coarser lattices. To this end, we choose a higher cycle with gamma = 4. The results clearly demonstrate that critical slowing down is not reduced in either case.Comment: 7 pages, 1 figure, whole paper including figure contained in ps-file, DESY 93-00

Analysis and Development of Stochastic Multigrid Methods in Lattice Field Theory

We study the relation between the dynamical critical behavior and the kinematics of stochastic multigrid algorithms. The scale dependence of acceptance rates for nonlocal Metropolis updates is analyzed with the help of an approximation formula. A quantitative study of the kinematics of multigrid algorithms in several interacting models is performed. We find that for a critical model with Hamiltonian H(phi) absence of critical slowing down can only be expected if the expansion of in terms of the shift psi contains no relevant term (mass term). The predictions of this rule are verified in a multigrid Monte Carlo simulation of the Sine Gordon model in two dimensions. Our analysis can serve as a guideline for the development of new algorithms: We propose a new multigrid method for nonabelian lattice gauge theory, the time slice blocking. For SU(2) gauge fields in two dimensions, critical slowing down is almost completely eliminated by this method, in accordance with the theoretical prediction. The generalization of the time slice blocking to SU(2) in four dimensions is investigated analytically and by numerical simulations. Compared to two dimensions, the local disorder in the four dimensional gauge field leads to kinematical problems.Comment: (PhD thesis), 90 pages, latex file + epsfigures as uuencoded file, preprint DESY 94-00

Comanagement Between Federal Agencies and Native American Tribes: Applications and Lessons

The Badger Two Medicine Area in the Lewis and Clark National Forest has faced conflict over management since the 1980s due to leasing of what is considered sacred land. Recently those leases were cancelled. However questions about how to manage the land still remain. This paper explores examples of comanagement between the federal government and Native American tribes in an effort to understand what options and obstacles the Blackfeet tribe will face in future management of the Badger Two Medicine Area. I examined the National Bison Range and Badlands National Park efforts at comanagement in depth and additional current comanagement situations with other federal agencies. Background information is provided on both of these topics. This policy piece found that comanagement suffered at both the National Bison Range and Badlands National Park due to poor communication, political and personal issues within agencies, and issues beyond agency control, such as funding. In situations where comanagement has been successful, strong interpersonal relationships and effective communication have played a significant role

Topological Updating Schemes: A Case Study In 3-d U(1)

We study a topological updating scheme in three dimensional U(1) gauge theory. Some expectations for four dimensional SU(N) gauge theories are discussed.Comment: 3 pages as PostScript file. To appear in the proceedings of Lattice'94, held in Bielefeld, German

Interview of Joseph Grabenstein, F.S.C., M.A., M.Ed., M.L.S.

Brother Joseph Grabenstein is the Head Archivist of the La Salle University Archives and also manages the Brothers of the Christian School, District of Eastern North America Archives that are housed here at La Salle. He worked as an assistant archivist from 1992 until 1994 and was made head archivist January 1, 1994. Grabenstein was born in 1950 in Cumberland, Maryland to Herman and Irene Grabenstein. He is a 1968 graduate of Bishop Walsh High School and received his Bachelor of Arts in History in 1973 from La Salle College. He taught a variety of classes including history, geography, religion and world cultures over his 18-year career. Grabenstein taught freshman from 1973 to 1979 at Calvert Hall College High School in Towson, Maryland, continued on with 7th and 8th graders from 1979 to 1986 at St. John’s College High School in Chevy Chase, D.C., and finally educated 6th, 7th, and 8th graders from 1986 to 1991 at Bishop Walsh High School in Cumberland, Maryland. Throughout his teaching career he also attained other degrees by completing coursework over numerous summers. In 1979, he received his Master’s Degree in History from Villanova University, and in 1987 he received his Master’s Degree in Education from Duquesne University. After completing 36 credits in one year, he attained his Master’s Degree in Library Science from the University of Maryland-College Park. Brother Joseph Grabenstein can be found hard at work collecting and preserving materials in the University Archives in the lower level of College Hall

Lakefront Utilities and Railroads Educational Issues Forum

On October 2, 2002, the Levin College Forum Program and the Cleveland Lakefront Partners (the city of Cleveland, the Greater Cleveland Growth Association, Cleveland Tomorrow, and the Cleveland Neighborhood Development Coalition) sponsored a public forum on lakefront utilities and railroads. The forum was the second in a series of four intended to deepen the community’s understanding of some of the issues related to the plans for the Cleveland lakefront. It was part of the Levin College Forum Program’s two-year Northeast Ohio’s Waterways forum series, which is focusing public attention on development of a comprehensive vision for all of Northeast Ohio’s waterways. The purpose of the Utilities and Railroads forum was to inform the public about the nature of Greater Cleveland’s public and private infrastructure located on the lakefront and the factors that will affect plans to redesign Cleveland’s lakefront

Multigrid Monte Carlo Algorithms for SU(2) Lattice Gauge Theory: Two versus Four Dimensions

We study a multigrid method for nonabelian lattice gauge theory, the time slice blocking, in two and four dimensions. For SU(2) gauge fields in two dimensions, critical slowing down is almost completely eliminated by this method. This result is in accordance with theoretical arguments based on the analysis of the scale dependence of acceptance rates for nonlocal Metropolis updates. The generalization of the time slice blocking to SU(2) in four dimensions is investigated analytically and by numerical simulations. Compared to two dimensions, the local disorder in the four dimensional gauge field leads to kinematical problems.Comment: 24 pages, PostScript file (compressed and uuencoded), preprint MS-TPI-94-

Port Activities Educational Issues Forum

On October 22, 2002, the Maxine Goodman Levin College of Urban Affairs, Cleveland State University, and the Cleveland Lakefront Partners (the city of Cleveland, the Greater Cleveland Growth Association, Cleveland Tomorrow, and the Cleveland Neighborhood Development Coalition) sponsored a public forum on the activities of the Port of Cleveland. The forum was the third in a series of four intended to deepen the community’s understanding of some of the issues related to the plans for the Cleveland lakefront. It was part of the Levin College Forum Program’s two-year Northeast Ohio’s Waterways forum series, which is focusing public attention on development of a comprehensive vision for all of Northeast Ohio’s waterways. The purpose of the Port Activities Forum was to inform the public about the nature of the public and private infrastructure used for port activities and how that will affect plans for the Cleveland lakefront