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  • 1
    Electronic Resource
    Electronic Resource
    Comparison of areal and estimated volumetric bone mineral density values between older men and women (1995)
    Springer
    Osteoporosis international 5 (1995), S. 271-275 
    Details
    ISSN: 1433-2965
    Keywords: Bone densitometry ; Bone mineral density ; Dual-energy X-ray absorptiometry ; Gender differences ; Osteoporosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We compared areal bone mineral density (BMD) of the total body (TBMD), antero-posterior lumbar spine at L3 (APS), lateral spine at L3 (LS) and femoral neck (FN). In order to understand better the effect of gender-related size differences on BMD, we also compared the estimated volumetric BMD at L3 (VLS) and the femoral neck (VFN). Subjects were asymptomatic women (n=22) and men (n=44) with an age range of 58–79 years. BMD at each site was measured by dual-energy X-ray absorptiometry using a Hologic 2000 in array mode. Results of the statistical analyses (ANOVA) showed the men to have significantly greater BMD at all areal sites [APS, LS (p〈0.05); FN (p〈0.01); TBMD (p〈0.001)]. The two estimated volumetric comparisons, however, showed no gender differences. Results demonstrate how measures from areal BMD measures can be misleading when comparing groups of different size. In older men and women planar measures may overestimate gender differences in BMD.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01774017
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Preliminary results of differentiating apple sports by pollen ultrastructure (1997)
    Springer
    Euphytica 98 (1997), S. 155-161 
    Details
    ISSN: 1573-5060
    Keywords: apple ; cultivar identification ; image analysis ; Malus ; pollen analysis ; pollen morphology ; pollen ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The pollen grain surface morphology of two Red Delicious apple (Malus × domestica Borkh.) sports, Aversang and Ultrared, and two Gala apple sports, Galalea and Splenola, were examined using scanning electron microscopy for genotype differentiation. Quantitative data on pollen dimensions, ridge patterns, and pore dimensions were extracted from micrographs using image analysis. Data were examined with analysis of variance, canonical variate analysis, and discriminant analysis in order to differentiate genotypes. The combination of image analysis to extract quantitative data and multivariate analysis was successful in differentiating apple sports with exine pore and pollen grain measurements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003174529263
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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