Three-dimensional inelastic analysis for hot section components, BEST 3D code

The goal is the development of an alternative stress analysis tool, distinct from the finite element method, applicable to the engineering analysis of gas turbine engine structures. The boundary element method was selected for this development effort on the basis of its already demonstrated applicability to a variety of geometries and problem types characteristic of gas turbine engine components. Major features of the BEST3D computer program are described, and some of the significant developments carried out as part of the Inelastic Methods Contract are outlined

[Review of] Linda Pertustati. In Defense of Mohawk Land: Ethnopolitical Conflict in Native North America

On March 10, 1990, Mohawks at Kanehsatake, located in Quebec, Canada, staged an armed demonstration that lasted seventy-eight days to protest the expansion of the Oka Golf Club onto lands that the Mohawk claimed, which included their ancestral burial grounds. One Canadian officer was killed, and many on both sides were injured during the protest. The entire Mohawk-Oka conflict lasted 200 days (March 10-September 26) and finally ended when the Canadian federal government, on behalf of the Mohawks, purchased the contested land from the town of Oka. Linda Pertusati, Assistant Professor of Ethnic Studies at Bowling Green State University, offers an overview of this ethnopolitical conflict and relates it to the nearly 400 year struggle of the Mohawk Nation to retain its political and economic sovereignty. She convincingly argues that Mohawk resistance was an indigenous reaction to colonialism

Insights into antibody catalysis: Structure of an oxygenation catalyst at 1.9-Å resolution

The x-ray crystal structures of the sulfide oxidase antibody 28B4 and of antibody 28B4 complexed with hapten have been solved at 2.2-Å and 1.9-Å resolution, respectively. To our knowledge, these structures are the highest resolution catalytic antibody structures to date and provide insight into the molecular mechanism of this antibody-catalyzed monooxygenation reaction. Specifically, the data suggest that entropic restriction plays a fundamental role in catalysis through the precise alignment of the thioether substrate and oxidant. The antibody active site also stabilizes developing charge on both sulfur and periodate in the transition state via cation-pi and electrostatic interactions, respectively. In addition to demonstrating that the active site of antibody 28B4 does indeed reflect the mechanistic information programmed in the aminophosphonic acid hapten, these high-resolution structures provide a basis for enhancing turnover rates through mutagenesis and improved hapten design

(The) political influence of the prophets ..

Typewritten sheets in cover. Thesis (M.A.)--Boston University Bibliography: 6 p. at end This item was digitized by the Internet Archive

Detection of Circulating Biomarkers with Gold-Based Nanoparticles and Optical Spectroscopy

Detection of Circulating Biomarkers with Gold-Based Nanoparticles and Optical Spectroscop

(The) political influence of the prophets ..

Typewritten sheets in cover. Thesis (M.A.)--Boston University Bibliography: 6 p. at end This item was digitized by the Internet Archive