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  • Azygous anterior cerebral artery  (1)
  • Computational Chemistry and Molecular Modeling  (1)
  • livedo reticularis  (1)
  • 1
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 10 (1976), S. 659-668 
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Singlet-triplet spin-orbit matrix elements, which govern the lowest 3B1u ← 1Ag transition in typical aromatic molecules like naphtalene and anthracene, are calculated with INDO molecular orbitals and the conventional spin-orbit one-electron hamiltonian. The correct order of magnitude of the triplet radiative lifetimes is obtained for the two molecules, when INDO MO coefficients are referred to a symmetrically orthogonalized basis. The possibility of using the semiempirical Hamiltonian is explored using ab initio wave-functions for a few test cases. Reasonably accurate doublet-doublet and singlet-triplet matrix elements have been computed.
    Additional Material: 6 Tab.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1590-3478
    Keywords: Cerebral ischemia ; livedo reticularis ; Sneddon syndrome ; coagulation defect
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Sommario L'associazione di lesioni cerebrovascolari ischemiche e livedo reticularis è conosciuta come sindrome di Sneddon. La sua eziopatogenesi non è ancora stata chiarita. Noi descriviamo un caso in cui sono stati documentati un aumento dell'attività del fattore VII della coagulazione ed una carenza della forma libera della proteina S.
    Notes: Abstract The association of ischemic cerebrovascular lesions with livedo reticularis is known as Sneddon syndrome. It affects young subjects, primarily women, and its neurological manifestations are TIAs, ischemic stroke, progressive dementia and epileptic seizures. Its etiopathogenesis has still to be clarified. Some authors have associated it with an antiphospholipid antibody syndrome. Recently it has been assumed that a defect in blood coagulation may be involved in its pathogenesis. Here we report a case in which both an increase in coagulation factor VII activity and a deficiency in free protein S were documented.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1590-3478
    Keywords: Azygous anterior cerebral artery ; Cerebral infarction ; Digital subtraction angiography ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We describe the unusual case of a 63-year-old woman with a history of arterial hypertension who presented a sudden weakness of the lower limbs followed by mutism, akinesia and dyspraxia. Magnetic resonance images showed a bilateral medial frontal infarction. Digital subtraction angiography documented a right azygous anterior cerebral artery with severe stenosis in its sub-callosal tract; the left anterior cerebral artery showed mild hypoplasia with only sub-frontal and fronto-polar branches. No embolic source was documented. Afterwards the patient presented a gradual and partial recovery of both motor and cognitive functions.
    Type of Medium: Electronic Resource
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