78 research outputs found
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Deep bore hole instrumentation along San Francisco Bay Bridges
The Bay Bridges down hole network consists of sensors in bore holes that are drilled 100 ft. into bedrock around and in the San Francisco Bay. Between 2 and 8 instruments have been spaced along the Dumbarton, San Mateo, Bay, and San Rafael bridges. The instruments will provide multiple use data that is important to geotechnical, structural engineering, and seismological studies. The holes are between 100 and 1000 ft deep and were drilled by Caltrans. There are twenty- one sensor packages at fifteen sites. Extensive financial support is being contributed by Caltrans, UCB, LBL, LLNL-LDRD, U.C. Campus/Laboratory Collaboration (CLC) program, and USGS. The down hole instrument package contains a three component HS-1 seismometer and three orthogonal Wilcox 73 1 accelerometers, and is capable of recording a micro g from local M = 1.0 earthquakes to 0.5 g strong ground motion form large Bay Area earthquakes
Misapplied Lessons? 9/11 and the Iraq Debate
The article of record as published may be located at DOI:10.1080/107367002084369
Cognition and multiple sclerosis: a historical analysis of medical perceptions
The earliest descriptions of multiple sclerosis (MS) rarely distinguished cognitive impairment from the general category of "mental symptoms", which also encompassed a broad range of affective disorders. Case-study methods led to disputes about the extent and nature of these symptoms, exacerbated by different national medical traditions. Appropriate scientific methods were only used to investigate cognitive performance in a modest number of studies up to the 1960s, and it was being argued as late as the mid 1970s that affective processes rather than cognitive processes were the key to understanding the psychological aspects of MS. However, the early 1980s, saw major developments in test procedures for the detection of subtle and selective cognitive changes, in the use of brain imaging techniques, and in collaboration between neurologists and neuropsychologists. Pressure to use research findings to improve patients' daily lives suggests a need to reconsider the connection between affective and cognitive processes in MS
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