Calibration of rotation axes for multi-axis goniometers in macromolecular crystallography

The installation of multi-axis goniometers such as the ESRF/EMBL miniKappa goniometer system has allowed the increased use of sample reorientation in macromolecular crystallography. Old and newly appearing data collection methods require precision and accuracy in crystal reorientation. The proper use of such multi-axis systems has necessitated the development of rapid and easy to perform methods for establishing and evaluating device calibration. A new diffraction-based method meeting these criteria has been developed for the alibration of the motors responsible for rotational motion. This method takes advantage of crystal symmetry by comparing the orientations of a sample rotated about a given axis and checking that the magnitude of the real rotation fits the calculated angle between these two orientations. Hence, the accuracy and precision of rotational motion can be assessed. This rotation calibration procedure has been performed on several beamlines at the ESRF and other synchrotrons. Some resulting data are presented here for reference. © 2018, Wiley-Blackwell. All Rights Reserved

Radio frequency identification applications in semiconductor manufacturing

Thesis (M. Eng. in Logistics)--Massachusetts Institute of Technology, Engineering Systems Division, 2004.Includes bibliographical references (p. 87).Radio frequency identification (RFID) has an enormous potential impact within the semiconductor supply chain, especially within semiconductor manufacturing. The end benefit of RFID will be in the mass serialization, and the subsequent tracking and tracing, of individual semiconductors, or what is referred to as Unit Level Traceability (ULT). Before all of the technical hurdles of ULT are overcome, however, there exists a host of other applications for RFID within semiconductor manufacturing. The identification of what can and what should be RFID-tagged and read, the analysis of how to collect this information and what to do with the data, and the implementation of some targeted opportunities will provides valuable information with regards to the technical and logistical hurdles of RFID within semiconductor manufacturing far before ULT becomes a reality.by David Ian Cassett [and] Christopher William Chiu Hopeman.M.Eng.in Logistic

Nettie Friede Kosminsky papers undated, 1860-1980

Consists primarily of mimeographed copies of thirteen travel diaries prepared by Nettie Kosminsky and her sister Myrtle Cassett in the course of their travels around the world. They are personal in nature and contain primarily anecdotal material on each place visited. Also contains photocopied typescripts of speeches delivered by Meyer Friede in the Missouri legislature on slavery (1860), and a reply to an anti-Semitic statement made by another legislator (1861)Gift, in part, of Nettie KosminskyGift, in part, of Rabbi David Alpertfar031

Toward a more public discussion of the ethics of federal social program evaluation

Federal social program evaluation has blossomed over the past quarter century. Despite this growth, there has been little accompanying public debate on research ethics. This essay explores the origins and the implications of this relative silence on ethical matters. It reviews the federal regulations that generally govern research ethics, and recounts the history whereby the evaluation of federal programs was specifically exempted from the purview of those regulations. Through a discussion of a recent evaluation that raised ethical concerns, the essay poses-but does not answer-three questions: (1) Are there good reasons to hold federal social program evaluations to different standards than those that apply to other research?; (2) If so, what ethical standards should be used to assess such evaluations?; and (3) Should a formal mechanism be developed to ensure that federal social program evaluations are conducted ethically? © 2005 by the Association for Public Policy Analysis and Management