Review of \u3cem\u3ePolitics and the Class Divide: Working People and the Middle Class Left.\u3c/em\u3e David Croteau. Reviewed by Charles M. Tolbert, Louisiana State University

David Croteau, Politics and the Class Divide: Working People and the Middle Class Left. Philadelphia: Temple University Press, 1995. $49.95 hardcover,$19.95 papercover

Review of \u3cem\u3eThe New Middle Classes: Life Styles, Status Claims and Political Orientations.\u3c/em\u3e Arthur J. Vidich (Ed.) Both books reviewed by Charles M. Tolbert, Louisiana State University

Arthur J. Vidich (Ed.), The New Middle Classes: Life Styles, Status Claims and Political Orientations. New York: New York University Press, 1995. $50.00 hardcover,$17.50 papercover

Evaluation Research and Institutional Pressures: Challenges in Public-Nonprofit Contracting

This article examines the connection between program evaluation research and decision-making by public managers. Drawing on neo-institutional theory, a framework is presented for diagnosing the pressures and conditions that lead alternatively toward or away the rational use of evaluation research. Three cases of public-nonprofit contracting for the delivery of major programs are presented to clarify the way coercive, mimetic, and normative pressures interfere with a sound connection being made between research and implementation. The article concludes by considering how public managers can respond to the isomorphic pressures in their environment that make it hard to act on data relating to program performance.This publication is Hauser Center Working Paper No. 23. The Hauser Center Working Paper Series was launched during the summer of 2000. The Series enables the Hauser Center to share with a broad audience important works-in-progress written by Hauser Center scholars and researchers

New insights into the fundamental role of topological constraints as a determinant of two-way junction conformation

Recent studies have shown that topological constraints encoded at the RNA secondary structure level involving basic steric and stereochemical forces can significantly restrict the orientations sampled by helices across two-way RNA junctions. Here, we formulate these topological constraints in greater quantitative detail and use this topological framework to rationalize long-standing but poorly understood observations regarding the basic behavior of RNA two-way junctions. Notably, we show that the asymmetric nature of the A-form helix and the finite length of a bulge provide a physical basis for the experimentally observed directionality and bulge-length amplitude dependence of bulge induced inter-helical bends. We also find that the topologically allowed space can be modulated by variations in sequence, particularly with the addition of non-canonical GU base pairs at the junction, and, surprisingly, by the length of the 5′ and 3′ helices. A survey of two-way RNA junctions in the protein data bank confirms that junction residues have a strong preference to adopt looped-in, non-canonically base-paired conformations, providing a route for extending our bulge-directed framework to internal loop motifs and implying a simplified link between secondary and tertiary structure. Finally, our results uncover a new simple mechanism for coupling junction-induced topological constraints with tertiary interactions

ERRATUM: "FERMI DETECTION OF γ-RAY EMISSION FROM THE M2 SOFT X-RAY FLARE ON 2010 JUNE 12" (2012, ApJ, 745, 144)

Due to an error at the publisher, the times given for the major tick marks in the X-axis in Figure 1 of the published article are incorrect. The correctly labeled times should be "00:52:00," "00:54:00," ... , and "01:04:00." The correct version of Figure 1 and its caption is shown below. IOP Publishing sincerely regrets this error

Oil and Gas Development and Coastal Income Inequality: A Comparative Analysis

Comparative analysis of family income inequality trends in coastal Louisiana

U.S. Commuting Zones and Labor Market Areas: A 1990 Update

This document provides an overview of a research project that identified U.S. commuting zones and labor market areas with journey-to-work data from the 1990 Census. This research replicated a previous delineation of U.S. 1980 commuting zones and labor market areas. County to county flows of commuters were analyzed with a hierarchical cluster algorithm. The results of the cluster analysis were used to identify commuting zones (i.e., group's of counties with strong commuting ties). For 1990, 741 commuting zones were delineated for all U.S. counties and county equivalents. These commuting zones are intended for use as spatial measures of local labor markets when researchers are not concerned with minimum population thresholds. Where necessary, the commuting zones were then aggregated into 394 labor market areas that met the Bureau of the Census' criterion— of a 100,000 population minimum. This was done to acquire a special 1990 Census Public Use Microdata Sample (PUMS-L) that identifies labor market areas in which individuals live and work. The commuting zones and labor market areas were also classified according to the population of the largest place within them