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  • Artikel: DFG Deutsche Nationallizenzen  (11)
  • Magnetic resonance imaging  (5)
  • 32.80.F  (2)
  • Chiral disulfonamide  (2)
  • General Chemistry  (2)
Datenquelle
  • Artikel: DFG Deutsche Nationallizenzen  (11)
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Erscheinungszeitraum
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  • 1
    Digitale Medien
    Digitale Medien
    A catalytic enantioselective reaction using a C"2-symmetric disulfonamide as a chiral ligand: alkylation of aldehydes catalyzed by disulfonamide-Ti(O-i-Pr)"4-dialkyl zinc system
    Amsterdam : Elsevier
    Tetrahedron 48 (1992), S. 5691-5700 
    Details
    ISSN: 0040-4020
    Schlagwort(e): Chiral disulfonamide ; catalytic reaction ; chiral titanium complex ; dialkyl zinc ; enantioselective alkylation
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0040-4020(01)90147-4
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  • 2
    Digitale Medien
    Digitale Medien
    A catalytic enantioselective reaction using a C"2-symmetric disulfonamide as a chiral ligand: Alkylation of aldehydes catalyzed by disulfonamide-Ti(O-i-Pr)4-Dialkyl zinc system
    Amsterdam : Elsevier
    Tetrahedron 48 (1992), S. 5691-5700 
    Details
    ISSN: 0040-4020
    Schlagwort(e): Chiral disulfonamide ; catalytic reaction ; chiral titanium complex ; dialkyl zinc ; enantioselective alkylation
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1016/0040-4020(92)80020-G
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  • 3
    Digitale Medien
    Digitale Medien
    MR imaging of wallerian degeneration in the human brain stem after ictus (1990)
    Springer
    Neuroradiology 32 (1990), S. 191-195 
    Details
    ISSN: 1432-1920
    Schlagwort(e): Cerebral infarction ; Cerebral hemorrhage ; Brain stem ; Magnetic resonance imaging
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Magnetic resonance (MR) imaging of wallerian degeneration in the brain stem was studied in 30 hemiplegic patients within 12 months of ictus. As early as 25 days after the ictus, decreased signal intensities on proton-density (PD)-weighted images were observed in the brain stem ipsilaterally. This hypointensity gradually approached an isointense stage during 70–80 days after the ictus, abnormal intensities were not detected in any pulse sequence. We termed this phenomenon “Fogging effect of wallerian degeneration”. In later stages, at least 81 days after the ictus, increased signal intensities on T2-weighted images, with or without decreased signal intensities on T1-weighted images, were observed in the brain stem, ipsilaterally. Finally, at least six months after the ictus, mild shrinkage of the ipsilateral brain stem was newly detected on the T1-weighted images. MR imaging has proven to be a sensitive diagnostic modality for evaluating wallerian degeneration in the brain stem.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00589109
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  • 4
    Digitale Medien
    Digitale Medien
    Thickened fatty filum terminale: MR imaging (1991)
    Springer
    Neuroradiology 33 (1991), S. 331-333 
    Details
    ISSN: 1432-1920
    Schlagwort(e): Filum terminale ; Fat tissue ; Magnetic resonance imaging
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary MR images of four patients with a thickened filum terminale showing a fat signal are presented. There were no related symptoms and no evidence of tethering. The thickened fatty filum terminale seemed to be a developmental anomaly and without clinical significance. As the incidence of this anomaly was 0.24% in our series, knowledge of its possible presence of this anomaly is important for routine reviews of MR image.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00587817
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  • 5
    Digitale Medien
    Digitale Medien
    Serial MR imaging in Creutzfeldt-Jakob disease (1991)
    Springer
    Neuroradiology 33 (1991), S. 364-367 
    Details
    ISSN: 1432-1920
    Schlagwort(e): Creutzfeldt-Jakob disease ; Brain atrophy ; White matter degeneration ; Magnetic resonance imaging
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Serial magnetic resonance (MR) imagings of two autopsied patients with Creutzfeldt-Jakob disease (CJD) are presented. Both patients showed a dramatic progression of brain atrophy. The initial MR imagings were, however, interpreted as normal except for localized mild cortical atrophy in one patient. When a normal MR image is obtained in a demented middle-aged or aged patient, CJD may still need to be ruled out: follow up MR imaging may be useful.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00587828
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  • 6
    Digitale Medien
    Digitale Medien
    Olivary degeneration after cerebellar or brain stem haemorrhage: MRI (1993)
    Springer
    Neuroradiology 35 (1993), S. 335-338 
    Details
    ISSN: 1432-1920
    Schlagwort(e): Olivary degeneration ; Cerebellar haemorrhage ; Brain stem haemorrhage ; Magnetic resonance imaging
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Magnetic resonance (MR) images of seven patients with olivary degeneration caused by cerebellar or brain stem haemorrhages were reviewed. In four patients with cerebellar haemorrhage, old haematomas were identified as being located in the dentate nucleus; the contralateral inferior olivary nuclei were hyperintense on proton-density- and T2-weighted images. In two patients with pontine haemorrhages, the old haematomas were in the tegmentum and the ipsilateral inferior olivary nuclei, which were hyperintense. In one case of midbrain haemorrhage, the inferior olivary nuclei were hyperintense bilaterally. The briefest interval from the ictus to MRI was 2 months. Hypertrophic olivary nuclei were observed only at least 4 months after the ictus. Olivary degeneration after cerebellar or brain stem haemorrhage should not be confused with ischaemic, neoplastic, or other primary pathological conditions of the medulla.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00588362
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  • 7
    Digitale Medien
    Digitale Medien
    MR imaging of intracranial vertebral artery occlusion (1989)
    Springer
    Neuroradiology 31 (1989), S. 403-407 
    Details
    ISSN: 1432-1920
    Schlagwort(e): Vertebral artery ; Basilar artery ; Arterial occlusion ; Magnetic resonance imaging
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Magnetic resonance (MR) images of nine patients with intracranial vertebral artery occlusion (five proved, four presumed) have been reviewed. In two of nine, both vertebral arteries were occluded and in five of the nine, the basilar artery was also blocked. All occluded arteries showed absence of flow void and were clearly demonstrated as mildly hypo-∼mildly hyperintense structures to brainstem parenchyma on the T1-weighted images. In two of five patients with basilar artery occlusion, retrograde filling of the distal basilar artery was detected. Thus, MR imaging, in particular the T1-weighted image, is a pertinent diagnostic modality for evaluating intracranial vertebral artery occlusion. Angiography does not seem to be required for confirmation.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00343864
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  • 8
    Digitale Medien
    Digitale Medien
    g-Hartree ab-initio calculation of atomic ionization energy of small atoms (1987)
    Springer
    The European physical journal 6 (1987), S. 13-15 
    Details
    ISSN: 1434-6079
    Schlagwort(e): 31.20.D ; 32.80.F
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Theg-Hartree method is adapted to the direct ab-initio calculation of atomic transition energy. For the improvement of numerical accuracy the newg-Hartree code is developed and used for the calculations of atomic ionization energies of selected levels of small atoms He(Z=2), Be(Z=4), Ne(Z=10), Mg(Z=12) and Ar(Z=18). The results are very similar to those obtained in a previous work. The agreement between theory and experiment is excellent.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01436990
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  • 9
    Digitale Medien
    Digitale Medien
    Green's function calculation of ionization energies of Ca (Z=20), Kr (Z=36), Sr (Z=38) and Yb (Z=70) (1987)
    Springer
    The European physical journal 6 (1987), S. 303-307 
    Details
    ISSN: 1434-6079
    Schlagwort(e): 31.20.D ; 32.80.F ; M
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The Ca 3s, Kr 4s, Sr 4s and Yb 5s atomic ionization spectra are calculated using the one-particle Green's function method within the framework of Random phase approximation with exchange. Pronounced final ionic correlation effects are found for these levels. The relative intensity of the main ionic state is reduced considerably byns −1↔np −2 nd super Coster Kronig process. The ionization energy of the main ionic state is shifted as much as ∼4 eV from the relativistic Hartree-Fock ΔSCF ionization energy byns −1↔np −2 nd super Coster-Kronig process. The existence of strongnp −2 nd 2 S satellite is predicted for these levels.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01437055
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  • 10
    Digitale Medien
    Digitale Medien
    Aromatische Verbindungen aus Blätteralkoholen (1962)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 74 (1962), S. 291-291 
    Details
    ISSN: 0044-8249
    Schlagwort(e): Chemistry ; General Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/ange.19620740804
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