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  • 1
    ISSN: 1432-0827
    Keywords: Key words: Bone mineral density — Dual energy X-ray absorptiometry — Lean body mass — Fat — Normative data.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Abstract. Bone mineral density (BMD) and soft tissue composition were measured by dual energy X-ray absorptiometry (DXA) 3–4 years apart in 273 men and women aged 23–90. We found different rates of BMD loss in different skeletal regions. There were also different rates of BMD loss in different regions within the hip. Average rates of loss for male subjects 50 years of age and above for BMD total body were 0.1%/year and for femoral neck 1.5%/year, whereas lumbar spine (L2–L4) increased by 0.4%/year. Average rates of loss for female subjects 50 years of age and above for BMD total body were 0.0%/year, femoral neck 0.9%/year, and lumbar spine (L2–L4) 0.1%/year.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Osteoporosis international 2 (1992), S. 262-265 
    ISSN: 1433-2965
    Keywords: Bone mineral content (bmc) ; Osteoporosis ; Single photon absorptiometry (spa)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Altogether 426 women had their forearm bone mineral content (BMC) measured with single photon absorptiometry (SPA): one group in the early 1970s, another about 18 years later. Both groups represented purportedly healthy subjects. A third group of 328 women, measured at the same time as the second group, was from the same population but chosen by random selection (the population-based group). In the two sets of non-population-based women there was a small percentage reduction in the cortical forearm bone mass in the recent measurement as compared with the earlier measurement. This was significant only in women below 70 years of age. The forearm BMC, both cortical and trabecular, was less in all age groups of women randomly selected from the same population as the healthy control sample. This difference emphasizes the importance of selecting normative data from a population-based sample.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Archives of orthopaedic and trauma surgery 104 (1985), S. 82-84 
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die Frequenz von Frakturen, anderen Krankeiten und Röntgen-Befunden bei 279 Patienten mit primärer Coxarthrose, die alle mit totalem Hüftgelenkersatz operiert worden waren, wurden untersucht. Diese Patienten wurden mit 279 Kontrollen von gleichem Alter und Geschlecht verglichen. Die Untersuchung zeigte, daß Frakturen bei den Coxarthrosepatienten vor der Operation häufiger vorkamen als bei den Kontrollen. Nach der Operation war die Frequenz der Frakturen der beiden Gruppen gleich, mit Ausnahme von Frakturen unter halb der Hüftprothese, die nur bei den Coxarthrosepatienten vorkamen. Die fragilen Frakturen waren ebenso häufig bei den Coxarthrosepatienten wie bei den Kontrollen. Krankeiten, die auf hohes Alter zu beziehen sind, kamen bei den Coxarthrosepatienten häufiger vor, Zuckerkrankheit ausgenommen. Bei den Coxarthrosepatienten waren Röntgenuntersuchungen des Darmkanals und der Nieren häufiger gemacht worden.
    Notes: Summary In 279 patients who had undergone total hip replacement because of primary coxarthrosis, the occurrence of fractures, other diseases, and roentgen examinations was compared with that in the same number of age- and sexmatched controls from the same population. Coxarthrosis patients had had significantly more fractures than the controls before their hip operation but did not have significantly more after the operation except for fracture distal to the femur implant, which was rare but occurred only in the patients who had undergone surgery. Fragility fractures, including hip fractures, were equally frequent in coxarthrosis patients and controls. There was a higher tendency to morbidity in conditions related to ageing and degeneration; diabetes, however, was less frequent in coxarthrosis patients. Coxarthrosis patients had also had more frequent examinations of their gastro intestinal tract and their kidneys.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Communications in mathematical physics 145 (1992), S. 329-344 
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract String vertices,V, are shown to satisfy a new type of overlap equation of the form $$V \exp \{ ip \cdot Q^i (\xi ^i )\} = V \exp \{ ip \cdot Q^i (\xi ^i )\} \left( {\frac{{d\xi ^j }}{{d\xi ^i }}} \right)^{p^2 /2} $$ as well as corresponding equations forA n andB n cycles. A special case of such an equation, when integrated, is shown to be the Hirota equation for the K−P hierarchy.
    Type of Medium: Electronic Resource
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