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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Monatsschrift Kinderheilkunde 145 (1997), S. 588-592 
    ISSN: 1433-0474
    Keywords: Schlüsselwörter Kongenitale myotone Dystrophie ; Curshmann-Steinert-Batten-Syndrom ; CTG-Trinukleotid-Sequenzwiederholung ; Dystrophia myotonica ; Facies myopathica ; Key words Congenital myotonia dystrophy ; Curshmann-Steinert-Batten-Syndrom ; CTG-Trinukleotid sequence repetition ; Distrophy myotonica ; Facies myopathica
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The subject of this report is a newborn female, suffering from hypotonia and breathing difficulties, delivered in the 37 week with the help of forceps. Because of the nature of her symptons and those of the mother, which included Facies myopathica and Myotonia, the possibility of the expansion of a CTG-Trinukleotidsequence in the area of Chromosom 19 was explored. For this purpose a technique, developed in 1992, for the identification of molecular genetic characteristics was used. Instead of the 5 to 27 copies of the CTG sequence normally found in the population, the sick child had 1000 and the mother more than 700. EMG, in which a classical relases of myotones (Fall-Fight-Bomberscream) were found, confirmed the neurological diagnosis. Discussion: In the course of time the newborn child showed the classical problems of hyptotonia, such as respiratory difficulties, eating disorders leading to a loss of weight, meteroism, and after another stay in hospital, symptoms of Ileus.
    Notes: Zusammenfassung Es wird über ein in der 37. SSW durch Forzeps geborenes Mädchen berichtet, das durch Hypotonie und Ateminsuffizienz auffiel. Diese Symptome, ebenso wie die Facies myopathica und die Myotonie der Hand der Mutter bei der Begrüßung, gaben den Hinweis zur Durchführung der seit 1992 möglichen molekulargenetischen Bestimmung der Expansion einer CTG-Trinukleotidsequenz im Bereich des Chromosoms 19. Statt der in der Normalbevölkerung 5–27 Kopien dieser CTG-Sequenz-Wiederholung fanden sich bei dem erkrankten Kind über 1000 und bei der Mutter über 700. Darüber hinaus konnte durch eine neurologische Untersuchung der Mutter die bisher unbekannte Diagnose bestätigt werden, wobei im EMG eine klassische myotone Entladung (Sturz-Kampf-Bomber-Geräusch) gefunden wurde. Diskussion: Beim Neugeborenen traten im weiteren Verlauf die klassischen Folgeprobleme der Hypotonie wie Respiratorbedürftigkeit und Ernährungsprobleme mit relativer Gewichtsabnahme, Meteorismus und bei einer erneuten stationären Aufnahme Ileussymptomatik auf.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Algorithmica 14 (1995), S. 1-26 
    ISSN: 1432-0541
    Keywords: Restricted orientation geometry ; Computational geometry ; Polygons ; Kernel problem
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mathematics
    Notes: Abstract Let $$\mathcal{O}$$ be some set of orientations, that is, $$\mathcal{O} \subseteq [0^\circ ,360^\circ ]$$ . We consider the consequences of defining visibility based on curves that are monotone with respect to the orientations in $$\mathcal{O}$$ . We call such curves $$\mathcal{O}$$ -staircases. Two points p andq in a polygonP are said to $$\mathcal{O}$$ -see each other if an $$\mathcal{O}$$ -staircase fromp toq exists that is completely contained inP. The $$\mathcal{O}$$ -kernel of a polygonP is then the set of all points which $$\mathcal{O}$$ -see all other points. The $$\mathcal{O}$$ -kernel of a simple polygon can be obtained as the intersection of all {θ}-kernels, with θ∈ $$\mathcal{O}$$ . With the help of this observation we are able to develop an $$O(n\log \left| \mathcal{O} \right|)$$ algorithm to compute the $$\mathcal{O}$$ -kernel of a simple polygon, for finite $$\mathcal{O}$$ . We also show how to compute theexternal $$\mathcal{O}$$ -kernel of a polygon in optimal time $$O(n + \left| \mathcal{O} \right|)$$ . The two algorithms are combined to compute the ( $$\mathcal{O}$$ -kernel of a polygon with holes in time $$O(n^2 + n\left| \mathcal{O} \right|)$$ .
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Archives of virology 142 (1997), S. 157-166 
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary. About 98% of the DNA sequence of the lymphotropic Aleutian disease parvovirus isolate ADV-SL3 was determined and analysed. The sequence revealed that this isolate was a type-1 ADV strain, supporting that the currently used typing of ADV viruses does not correlate with virulence or pathogenicity. ADV-SL3 had a very high overall homology of 99.5% to the prototype strain ADV-G at the DNA level. Comparative sequence analyses with various ADV isolates of known virulence did not reveal a consensus sequence that could obviously be responsible for the apparently unique biological properties of this virus strain.
    Type of Medium: Electronic Resource
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