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  • 1
    Electronic Resource
    Electronic Resource
    Assessment of the burrow system of Lumbricus terrestris, Aporrectodea giardi, and Aporrectodea caliginosa using X-ray computed tomography (1997)
    Springer
    Biology and fertility of soils 26 (1997), S. 116-121 
    Details
    ISSN: 1432-0789
    Keywords: Key wordsLumbricus terrestris ; Aporrectodea giardi ; Aporrectodea caliginosa ; Burrow system ; X-ray computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Artificially packed soil columns were inoculated with individuals of different earthworm species (Lumbricus terrestris, Aporrectodea giardi or Aporrectodea caliginosa) and placed under controlled conditions in the laboratory. At the end of the incubation period, which lasted 8 months, three-dimensional reconstructions of the burrow system of each species were obtained using X-ray computed tomography. The particular features of the three burrow systems and the differences between them are discussed in terms of density, orientation and distribution of the burrows and the complexity of the network in relation to variations in soil depth and soil density.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003740050353
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  • 2
    Electronic Resource
    Electronic Resource
    Magnetic resonance imaging in Pelizaeus-Merzbacher disease (1987)
    Springer
    Neuroradiology 29 (1987), S. 403-405 
    Details
    ISSN: 1432-1920
    Keywords: Magnetic resonance imaging ; Pelizaeus ; Merzbacher disease ; Cerebral sclerosis diffuse
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Pelizaeus-Merzbacher's disease is a progressive encephalopathy with demyelination of the cerebral white matter. The diagnosis can not be made on clinical or biological grounds: pathological investigation is necessary to confirm tigroid demyelination. CT scanning failed to visualize this type of anomaly but detection is now possible with the advent of magnetic resonance imaging (MRI). The authors studied the case of a boy who, at the age of 8 presented with symptoms characteristic of the disease: rotatory nystagmus, progressive encephalopathy, and inherited X-linked recessive traits. Magnetic resonance imaging revealed a high signal in the supra-tentorial white matter and the usual contrast was inverted. The authors believe that MRI can make an important contribution to the diagnosis of the disease.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00348925
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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