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  • Computer graphics  (1)
  • CrN precipitates  (1)
  • Dominant inheritance  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Tumor volume: a novel prognostic factor in patients who undergo curative resection for gastric cancer (2000)
    Springer
    Langenbeck's archives of surgery 385 (2000), S. 225-228 
    Details
    ISSN: 1435-2451
    Keywords: Key words Gastric cancer ; Prognostic factor ; Tumor volumetry ; Surface rendering ; Computer graphics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Background and aims: The present study evaluates the significance of tumor volume as a prognostic factor in gastric cancer. Patients/methods: Tumor volume was measured from serial tissue sections of 101 patients who had undergone curative resection for solitary carcinoma of the stomach using a computer graphics analysis program. These patients were analyzed with respect to survival based on uni- variate and multivariate analyses of clinicopathological factors, including tumor volume, to determine an independent prognostic factor. Results: Significant differences in survival were found with respect to depth of tumor invasion (P=0.001), status of lymph-node metastasis (P=0.018), tumor diameter (P=0.005), and tumor volume (P〈0.0001) based on univariate analysis. However, multivariate analysis indicated only tumor volume as a valid factor in determining prognosis among the nine variables and was significantly associated with the prognosis (P=0.0005; relative risk 18.23; 95% confidence interval 3.52–94.37). Conclusion: The present findings indicate that tumor volume is an important prognostic factor in patients who undergo curative resection for gastric cancer and may be an alternative to conventional factors, thus providing a novel independent prognostic factor in gastric cancer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004230050269
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Dominantly inherited leukodystrophy showing cerebellar deficits and spastic paraparesis: a new entity? (1997)
    Springer
    Journal of neurology 244 (1997), S. 446-449 
    Details
    ISSN: 1432-1459
    Keywords: Key words Hereditary spastic ; paraparesis ; White-matter disease ; Dominant inheritance ; Leukodystrophy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We studied a dominant hereditary disorder showing progressive spastic paraparesis. The symptoms began in early childhood, with cerebellar deficits and mild mental deterioration, and the subsequent appearance of limb spasticity resulted in severe disability in the 3rd-4th decades of life. None of the patients were associated with any somatic abnormalities. Brain MRI showed diffuse white-matter involevement in all affected patients, but not in unaffected siblings. Although dominant, recessive, or X-linked leukodystrophies cause similar clinical features, our family did not show any known biochemical or gene deficits characteristic of these disorders. The clinical, radiological, and biochemical findings of this family are reported and suggest a possible novel genetic disorder.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004150050120
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Plasma nitriding of Fe-18Cr-9Ni in the range of 723–823 K (1991)
    Springer
    Oxidation of metals 36 (1991), S. 143-156 
    Details
    ISSN: 1573-4889
    Keywords: plasma nitriding ; Fe-18Cr-9Ni ; CrN precipitates ; nitrogen diffusion ; kinetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract To clarify the mechanism of plasma nitriding, we examined the optical microstructure, the hardness, the precipitation, and the concentration of dissolved nitrogen in Fe-18Cr-9Ni nitrided using plasma in the range of 723–823 K. Compared with ammonia-gas nitriding, the features of plasma nitriding are the formation of small chromium-nitride precipitates (CrN), the absence of an externally nitrided layer, the high concentration of dissolved nitrogen, and the high hardness (HV=1200). The diffusion coefficient of nitrogen in the present alloy was determined using the growth rate of the internally nitrided layer, based on calculations used in internal oxidation. Plasma- and gas-nitriding were also compared with respect to the growth rate of the nitrided layer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00938459
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    Paper (German National Licenses)
    Fulltext
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