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Cognitive behavioural therapy (CBT) for panic disorder encourages patients to learn about and make changes to thoughts and behaviour patterns that maintain symptoms of the disorder. Instruments to assess whether or not patients understand therapy content do not currently exist.
The aim of this study was to examine if increases within specific knowledge domains of panic disorder were related to improvement in panic symptoms following an intensive 2-day panic treatment.
Thirty-nine Veterans enrolled in an intensive weekend panic disorder treatment completed knowledge measures immediately before the first session of therapy and at the end of the last day of therapy. Four panic disorder experts evaluated items and reached consensus on subscales. Subscales were reduced further to create psychometrically sound subscales of catastrophic misinterpretation (CM), behaviours (BE), and self-efficacy (SE). A simple regression analysis was conducted to determine whether increased knowledge predicted symptom change at a 3-month follow-up assessment.
The overall knowledge scale was reduced to three subscales BE (n = 7), CM (n = 13) and SE (n = 8) with good internal consistency. Veterans’ knowledge of panic disorder improved from pre- to post-treatment. Greater increase in scores on the knowledge assessment predicted lower panic severity scores at a 3-month follow-up. A follow-up analysis using the three subscales as predictors showed that only changes in CM significantly contributed to the prediction.
In an intensive therapy format, reduction in panic severity was related to improved knowledge overall, but particularly as a result of fewer catastrophic misinterpretations.
Previous radial distribution work which we have found reported in the literature has invariably been based on film technique. Our work is entirely based on X-ray spectrometer intensity measurements, Radial distribution (RD) patterns for silica gel and η-aluinina are presented and the correlation with accepted structures for these materials demonstrated. The advantages of spectrometer over film technique are discussed. The entire calculation problem has been programed for the IBM 650 computer, A difference technique which appears very sensitive to small structure changes is described and demonstrated for silica-alumina cracking catalysts. A procedure for identifying systematic errors in the RD pattern is presented.
Roughness is a fundamental requirement when it comes to galvanizing sheet metal for making
cars. Segal worked with Alstom and DMO to develop a measuring apparatus that makes it
possible to monitor the Ra roughness factor at every point and throughout the process.
The new system has been installed on the Segal galvanizing line. Two measuring heads
(WINDIS) with travelling system have been installed, one on each side, after the skin-pass
allowing a continuous measurement of the roughness. Alstom roughness control system is
composed of an Alstom HPC controller linked to Windis and PC computer. The roughness
measurement system has been in operation for a few months and the results show a very
satisfactory correlation of Windis measurements with the manual measurements carried
out in the laboratory.
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