35 research outputs found

    Substation monitoring by acoustic emission techniques

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    Acoustic emission analysis of high voltage insulation

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    The prevalence of vertebral deformity in european men and women: the European Vertebral Osteoporosis Study.

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    Our aim was to determine the prevalence of radiographically defined vertebral deformity, as a marker of vertebral osteoporosis, in different regions and populations within Europe. We used a cross-sectional population-based survey. Population-based sampling frames were obtained from 36 centers in 19 European countries. Stratified random sampling was used to recruit 15,570 males and females aged 50-79 years. Lateral spinal radiographs were taken according to a standardized protocol, and all X-rays were evaluated centrally. Vertebral deformity was morphometrically defined according to the published methods of McCloskey and Eastell. Based on the McCloskey method, the mean center prevalence of all deformities was 12% in females (range 6-21%) and 12% in males (range 8-20%). The prevalence increased with age in both sexes though the gradient was steeper in females. There was substantial geographical variation, with the highest rates in Scandinavian countries. Radiographically defined vertebral deformity is a common disorder and equally frequent in males and females. Using standardized methodology, there is important variation in occurrence across Europe, which might suggest clues to pathogenesis

    Fall frequency and incidence of distal forearm fracture in the UK.

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    STUDY OBJECTIVE: This analysis aimed to determine the frequency of falls in men and women aged 50 years and over and to explore whether age variation in fall frequency may explain variation in the incidence of distal forearm fracture in women. DESIGN: This was a cross sectional survey. SETTING: Primary care based registers in four UK areas. PARTICIPANTS: Altogether 501 men and 702 women age 50-79 years participated. MAIN RESULTS: A total of 131 (26.1%) men and 181 (25.8%) women reported falling in the previous year. In women, the frequency of falls rose with age (chi 2 test for trend 4.33; p = 0.04), with no obvious early post-menopausal peak or subsequent decline. Men aged 50-54 years had a significantly increased risk of falls compared with women of this same age group, (odds ratio (OR) = 2.4; 95% confidence interval (CI) 1.3, 4.6), though above this age, the risk of falling was greater in women (OR = 1.2; 95% CI 0.9, 1.5). CONCLUSION: There are important differences in the frequency of falls in relation to age and sex. The data suggest that variation in fall frequency per se does not explain age variation in the incidence of distal forearm fracture in women
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