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  • 1995-1999  (4)
  • 1965-1969  (3)
  • 1920-1924
  • 1995  (4)
  • 1969  (3)
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  • 1995-1999  (4)
  • 1965-1969  (3)
  • 1920-1924
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  • 1
    Electronic Resource
    Electronic Resource
    Time-resolved x-ray imaging of high-power laser-irradiated underdense silica aerogels and agar foams (1995)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 2 (1995), S. 3820-3831 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: This article presents the results of experiments in which a high-power laser was used to irradiate low density (4–9 mg/cm3) silica aerogel and agar foam targets. The laser–solid interaction and energy transport through the material were monitored with time-resolved imaging diagnostics, and the data show the production and propagation of an x-ray emission front in the plasma. The emission-front trajectory data are found to be in significant disagreement with detailed simulations, which predict a much more rapid heating of the cold material, and the data suggest that this discrepancy is not explainable by target inhomogeneities. Evidence suggests that energy transport into the cold material may be dominated by thermal conduction; however, no completely satisfactory explanation for the discrepancies is identified, and further experimental and theoretical research is necessary in order to resolve this important problem in laser–plasma interaction physics. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.871081
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  • 2
    Electronic Resource
    Electronic Resource
    Massenbeziehungen zwischen Baryonen mitJ P=1+/2 und 3+/2, hergeleitet aus den Bindungsenergien der Quark-Teilchen (1969)
    Springer
    The European physical journal 228 (1969), S. 322-328 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The paper is based on the non-relativistic three quark model of the baryons including mass differences depending on the electromagnetic as well on the hypercharge. Assuming that the binding energies between two quarks in the baryons are the well known linear combinations of the binding energies we verify different mass formulas between the baryons. Some ones can be verified without additional assumptions, other ones only by supposing relations between the binding energies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01406714
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The effect of bone drilling on pain in gonarthrosis (1995)
    Springer
    International orthopaedics 19 (1995), S. 12-15 
    Details
    ISSN: 1432-5195
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Vingt-sept cas d'arthrose légère ou modérée du genou, diagnostiqués par arthroscopie et traités par forage, ont été revus avec un recul moyen de 4 ans (de 2 à 7 ans). La douleur, évaluée selon la cotation VAS, était diminuée pendant 24 mois en moyenne (1 à 76) dans les deux tiers des cas. Les résultats étaient meilleurs chez les patients présentant une arthrose globale que chez ceux atteints d'une arthrose uni-compartimentale. Ils étaient obtenus aussi bien dans les cas douloureux au repos (n=39) que dans ceux douloureux lors de la mobilisation du genou (n=14). Les complications ont été exceptionnelles (n=1). La douleur était diminuée dans une proportion significativement supérieure dans les genoux traités par forage que dans un groupe de contrôle de 16 cas, n'ayant subi qu'une arthroscopie à visée diagnostique (p=0.006). Le forage est un procédé sûr, n'entraînant que de rares complications. Il est indiqué dans le traitement des douleurs du genou chez les patients ayant une arthrose légère ou modérée, lorsque des interventions plus importantes ne sont ni nécessaires, ni réalisables.
    Notes: Summary Seventy-seven patients with mild to moderate gonarthrosis of the knee were treated by subchondral bone drilling, and followed for from 2 to 7 years. Patients with generalised arthrosis benefited more than those with unicompartmental involvement. Pain, assessed by a visual analogue scale, was significantly reduced compared with a control group of 16 patients who had a diagnostic arthroscopy only. Drilling is a safe procedure with few complications and can be used in patients when more extensive surgery is not yet indicated or possible.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00184908
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  • 4
    Electronic Resource
    Electronic Resource
    Maximalkraftmessungen des Lippen- und Zungendrucks und ihre Bedeutung für die klinische Diagnostik orofazialer Dyskinesien (1995)
    Springer
    Journal of orofacial orthopedics 56 (1995), S. 187-193 
    Details
    ISSN: 1615-6714
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The functioning of the orofacial muscular system essentially determines the shape of the jaw and of the dental arch as well as the position of the axis of the anterior teeth. Disturbances of the normal functioning can cause anomalies of the position of teeth or malformations of the bone structure. With the help of the newly developed device “Myometer 160®” we now have the possibility to measure the intra- and extraoral forces. We examined 107 persons aged 8 to 37 years. The maximal force was measured by ventral tongue pressure when the lips were pressed against each other and when a brassbution was pulled. In addition clinical results as well as a functional status were ascentained in order to record orofacial dyskinesjas. A significant connection between the age respectively the sex of the persons and the determined force was found. However, no clear relationship between the bechrsal position respectively the functional anomaly and the results of maximal force was determined. Thus it does not seem sensible to use maximal force measurement within the framework of the diagnosis of orofacial dyskinesias.
    Notes: Zusammenfassung Die Funktion der orofazialen Muskulatur bestimmt zu einem wesentlichen Teil die Kiefer form die Form des Zahnbogens sowie die Achsenstellung der Frontzähne. Störungen des normalen Funktions geschehens können Zahnstellung sanomalien und Pehibildungen der knöchernen Strukturen zur Folge haben Mit Hilfe des neu entwickelten Gerätes Myometer 160® ergibt sich die Möglichken. Maximalkräfte intra- und extraoral zu messen Untersucht wurden 107 Probanden im Alter von acht bis 37 Jahren Gemessen wurden die Maximalkräfte bei Zungendruck nach yentral, beim Zusammenpressen der Lippen sowie beim Ziehen an einem Messingknopf Zusatzlich wurden ein klinischer Befund sowie ein tunktioneller Status zur Erfassung orotaziater Dyskinesien erhoben. Signifikante Zusammenhänge zwischen dem Alter bzw. Geschlecht der Probanden und den ermittelten Kräften wurden testgestellt. Es konnte jedoch keine eindeurige Beziehung zwischen der Bißlage bzw klinisch aufrälligen Funktionsstörungen und den Maximalkraftwerten ermittelt werden. Es ist aus unserer Sicht daher fragwürdig, Maximalkraftmessungen im Rahmen der Diagnostik orofazialer Dyskinesten einzusetzen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02168131
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  • 5
    Electronic Resource
    Electronic Resource
    On the determination of electron relaxation times and specularity of surface scattering from surface state resonances (1969)
    Springer
    The European physical journal 9 (1969), S. 146-157 
    Details
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract On hand of a “minimal theory” we derive a description of electrons in skipping trajectories as a system of quantum-mechanical bound states. Impedance oscillations observed in Cu are discussed in terms of transitions between such surface quantum states. We focus attention on the determination of electron relaxation times and specularity of surface scattering from the theoretical analysis of impedance oscillation spectra. The temperature dependence of amplitude and linewidths observed in Ga illustrate the effect of relaxation time on the resonances. Electron reflection from roughened surfaces in Sn is shown to be increasingly non specular with increasing angle of incidence to the surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02422545
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  • 6
    Electronic Resource
    Electronic Resource
    Simultaneous detection of centromere-specific probes and chromosome painting libraries by a combination of primedin situ labelling and chromosome painting (PRINS-painting) (1995)
    Springer
    Chromosome research 3 (1995), S. 41-44 
    Details
    ISSN: 1573-6849
    Keywords: Chromosome aberrations ; chromosome painting ; FISH ; PRINS
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In situ techniques for the detection of specific chromosomes using centromeric probes and the decoration of entire chromosomes using chromosome painting are well established. However, in the deciphering of complex chromosomal aberrations it is valuable to be able to detect the centromere and the entire DNA of a specific chromosome in different colours simultaneously on the same metaphase. In this report we describe a combination of the primedin situ labelling (PRINS) technique and chromosome painting for simultaneous visualization of centromere-specific oligonucleotides and chromosome painting libraries. A key feature is that the denaturation step in the PRINS reaction is sufficient to keep the chromosomes denatured for chromosome painting. This means that PRINS and consecutive chromosome painting can be performed as a single procedure (PRINS-painting)
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00711160
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  • 7
    Electronic Resource
    Electronic Resource
    Neue Derivate des Pyridazins (1969)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 311 (1969), S. 286-295 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Das neuerdings leicht zugängliche 3-Amino-4-hydroxy-6-methy1-pyridazin 1 [1] erschließt einen neuen Zugang zu Derivaten des Pyridazins. Die Umsetzung mit salpetriger Säure liefert in verdünnter Schwefelsäure 3,4-Dihydroxy-6-methyl-pyridazin 3, in konz. Salzsäure dagegen 3-Chlor-4-hydroxy-6-methylpyridazin 2. Das Chloratom in 2 ist leicht nucleophil ersetzbar unter Bildung der 3-Hydroxy-, 3-Amino- bzw. 3-Phenylthio-Verbindungen 3, 7a-i. Noch leichter reagieren die entsprechenden 4-Methoxyverbindungen, so daß auch die interessanten3-Arylsulfonylamino-4-methoxy-Derivate 8k, l gut zugänglich sind.Mit Phosphoroxidchlorid liefert 2 das 3,4-Dichlor-6-methyl-pyridazin 10, das - ebenso wie 2 - in Gegenwart von Palladium reduktiv enthalogeniert werden kann, wobei 3-Methyl-pyridazin 11 bzw. das bisher unbekannte 4-Hydroxy-6-methyl-pyridazin 9 entstehen. Die Umsetzung des 3-Amino-4-hydroxy-6-methyl-pyridazins 1 mit Dimethylsulfat führt nur zum 4-Methoxy-Derivat 4. In gleicher Weise reagieren die 4-Hydroxy-6-methylpyridazine 7a-i und 2. Die Struktur der dargestellten Verbindungen wird gesichert. Die Verbindungen mit 4-Hydroxygruppe zeichnen sich durch hohe Schmelzpunkte, relativ geringe Löslichkeiten in Wasser und damit zusammenhängend sehr stark assoziierte IR-Banden der OH-Gruppe aus.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19693110214
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