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  • 1995-1999  (24)
  • 1965-1969  (9)
  • 1960-1964  (8)
  • 1925-1929  (4)
  • 1
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 104 (1996), S. 4198-4203 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The deuterated dicyanoquinonediimine salt Cu(2-CD3,5-CD3-DCNQI)2, (d6), a highly conductive organic metal, exhibits a phase transition from the metallic to the insulating state at Tc≈60 K. In a wide temperature range we observe an anticoincidence of high conductivity and electron spin resonance (ESR). These experiments were performed simultaneously in our ESR apparatus equipped for application of He pressure up to 200 bar. Near Tc there is a coexistence of conducting (ESR-silent) and insulating (ESR-detectable) domains. This correlation of ESR and conductivity σ points to a percolation limited conductivity. Upper and lower limits of the size of the domains are given. Light shifts Tc to lower temperatures, pressure to higher ones. This could be due to shrinking of the lattice which induces the phase transition when critical structural parameters are approached. This is most probably explained by a simultaneous development of a charge density wave (CDW) and a spin pairing within the DCNQI stack together with the trimerization of the lattice. Systematic measurements by variation of temperature, pressure, and light led to phase diagrams of (d6) and to the understanding of the mechanism of the phase transitions. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz 42 (1999), S. A311 
    ISSN: 1437-1588
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 168 (1962), S. 292-297 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Theβ-ray spectrum of Cs137 has been measured with an iron-free spectrometer. The energy of the soft component was found to beE 0=514±2 keV. The parameterk of the hard-component shape factorC 2VA (2) (W)=q 2+kp 2 was determined to bek=0.015±0.004. Theβ intensities amount to 6.5% (hard component) and 93.5% (soft component). TheK conversion coefficient of the isomeric transition was measured to beα K=0.093±0.003, in excellent agreement withSliv's theoretical value.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1434-601X
    Keywords: PACS:29.25.Dz Neutron sources – 25.40.Ve Other reactions above meson production thresholds – 13.75.Cs Nucleon-nucleon interactions (including antinucleons, deuterons etc.)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstact: The kinetic energy spectrum and the polarization of the PSI neutron beam produced in the reaction 12C(p,n)X at 0° with 590 MeV polarized protons were investigated. A strong energy dependence of the neutron beam polarization is observed which was not expected at the time the neutron beam was built.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 179 (1964), S. 528-531 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In the decay Eu152→Gd152 fiveβ(circularly polarizedγ) correlations have been measured (Table). The Fermi matrix element of the 3−–3− β transition is small or vanishing. The levels of 344 and 755 keV (I=2+ and 4+, respectively) seem to be collective states.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 97 (1995), S. 83-93 
    ISSN: 1434-6036
    Keywords: 79.60 ; 71.20 ; 71.28
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We have investigated hole doped (by lithium) and electron-doped (by nickel metal) NiO with photoemission (PES), inverse photoemission (IPES) and low and high energy electron energy loss spectroscopy (EELS). Both types of doping create empty states approximately in the middle of the charge transfer gap of undoped NiO.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 18 (1962), S. 565-566 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The blood pressure is not disturbed by a local injection of norepinephrine into the hypothalamus, but the excitability of vasopressor centres is affected. Often, the excitability of these centres is decreased; sometimes, it is increased, and, more rarely, it is first potentiated and then inhibited. Epinephrine has the same action, but dopamine is less potent; isoprenaline produces both facilitation and inhibition of these centres, but the facilitating effect is more frequent than with norepinephrine.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 206 (1968), S. 431-436 
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Untersuchungen an isolierten Uteri (Ratte, Maus) und beim Menschen während Kaiserschnitten ergaben, daß Oxytocinwährend undunmittelbar nach Halothan-Exposition in der Lage ist, eine Halothan bedingte Wehenhemmung und Basaltonussenkung aufzuheben. Methergin war dagegen nicht in der Lage,während oderunmittelbar im Anschluβ an die Halothan-Narkose die Wehenhemmung und Basaltonussenkung zu durchbrechen, und eine erneute Wehentätigkeit mit Basaltonusanstieg herbeizuführen. Halothan vermochte jedoch seinerseits dosisabhängig eine Oxytocin oder Methergin induzierte hypertone Wehentätigkeit zu durchbrechen und eine Wehenhemmung und Basaltonussenkung zu erzeugen. Zur Frage des Fehlens metherginsensibler Receptoren am Ratten-Uterus und zur Frage der Angriffspunkte und Wirkungsmechanismen von Halothan, Oxytocin und Methergin wurde Stellung genommen.
    Abstract: Résumé Des expériences exécutées sur l'utérus isolé (rat, souris) ainsi que chez l'homme lors de césariennes ont démontré quependant etjuste après exposition à l'Halothane (Fluothane) l'oxytocine est capable de compenser l'inhibition des contractions et la baisse du tonus de base dues à l'Halothane. Au contraire avec la Méthergine il n'a pas été possible, ni chez l'homme ni chez l'animal, de compenser l'inhibition des contractions et la baisse du tonus de basependant ou juste après exposition à l'Halothane et de provoquer à nouveau le travail avec élévation du tonus de base. De sa part pourtant l'halothane a été capable, en dépendance de la dose, de couper le travail utérin hypertonique provoqué par l'oxytocine ou la Métbergine et de provoquer une inhibition des contractions et une baisse du tonus de base. Il est pris position envers la possibilité du manque de récepteurs sensibles à la Méthergine dans l'utérus du rat ainsi qu'envers la question des points d'attaque et du mode d'action de l'Halothane, de l'oxytocine et de la Méthergine.
    Notes: Summary Experiments on isolated uteri of rats and mice and observations of women during caesarian sections showed, that Oxytocin, during and immediately after Fluothane exposition, is able to abolish the Fluothane induced inhibition of labour contraction and the reduction of the basal tone. In contrast, Methergin was found to be unable to abolish the Fluothane induced effects under the same experimental conditions. Fluothane itself, however, depending on doses given, was able to stop the Oxytocin or Methergin induced hypertonic labour contractions and to create a labour inhibition and to reduce the basal tone. The question as to the absence of Methergin sensitive receptors in the rat uterus and the problem of the reaction points and mechanism of action of Fluothane, Oxytocin and Methergin are discussed.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Archive of applied mechanics 36 (1968), S. 335-347 
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Summary The formation of a shock wave by the gradual steepening of an acceleration wave in plane motion or in motion with cylindrical or spherical symmetry is studied for a gas which undergoes an arbitrary number of thermodynamic relaxation processes. The thermodynamic state of the relaxing gas is described implicitly by introducing additional independent thermodynamic variables together with relaxation equations for these variables. The conservation of mass and momentum leads to relations for the propagation of acceleration discontinuities. Combined with the thermodynamic equations these relations yield an expression for the variation with time of the amplitude of an acceleration wave. This in turn leads to a condition for shock wave formation. The results are generalizations of a result given byBürger for the time of formation of a plane shock wave. They are, moreover, in formal agreement with results given byVarley et al. for acceleration waves in viscoelastic materials with fading memory for which the thermodynamic equations of state are given explicitly in form of functionals.
    Notes: Übersicht Die Aufsteilung von Beschleunigungswellen zu Verdichtungsstößen wird für ebene, zylinder- und kugelsymmetrische Bewegung eines Gases untersucht, in dem beliebig viele thermodynamische Relaxations-vorgänge ablaufen. Die von dem relaxierenden Gas durchlaufenen thermodynamischen Zustände werden implizit durch Einführung zusätzlicher unabhängiger thermodynamischer Variablen und Vorgabe von Relaxations-gleichungen für diese Variablen beschrieben. Kombination der Zustandsgleichungen mit den aus Kontinuitätsund Impulssatz folgenden Bedingungen für die Ausbreitung einer Unstetigkeit in der Beschleunigung ergibt einen Ausdruck für die Zeitabhängigkeit der Amplitude einer Beschleunigungswelle. Hieraus kann eine Bedingung für die Verdichtungsstoßentstehung hergeleitet werden. Die Ergebnisse sind Verallgemeinerungen eines vonBürger für ebene Bewegung gefundenen Resultats für die Entstehungszeit eines Stoßes. Sie stimmen formal überein mit den vonVarley et al. angegebenen Resultaten für Beschleunigungswellen in viskoelastischen Materialien mit schwindendem Gedächtnis, deren Zustandsgleichungen explizit in Funktionalform vorgegeben sind.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Monatsschrift Kinderheilkunde 147 (1999), S. 626-633 
    ISSN: 1433-0474
    Keywords: Schlüsselwörter Varizellen ; Impfstoff gegen Varizellen ; Routineprüfung ; Indikationsimpfung ; Anwendung in Deutschland ; Key words Varicella ; Varicella vaccine ; Routine vaccination ; Vaccination of risk groups use in Germany
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Background: For more than ten years, a live, attenuated varicella vaccine is available. With the licensure of a temperature stable vaccine preparation in Germany in 1994, a cost reduction from DM 510,– to DM 99.50 was achieved with a general vaccine availability independent of special cooling requirements. In the United States, in Japan and in Southern Korea varicella vaccine is already in use for routine vaccination in the second year of life. In contrast, in Germany the recommendation for VZV-vaccination is restricted to patients at increased risk for varicella complications as well as for regular intimate contacts of such persons. Discussion: In this article a short review of varicella and zoster is given, the characteristics of the VZV-vaccine are described and the options for future use in Germany are discussed.
    Notes: Zusammenfassung Hintergrund: Seit mehr als 10 Jahren ist ein Lebendimpfstoff gegen Varizellen verfügbar. Mit Zulassung eines temperaturstabilen Präparats in Deutschland im Jahr 1994 sind die Kosten für eine Dosis von rund DM 510,– auf DM 99,50 gesunken, eine generelle Verfügbarkeit ist heute gewährleistet. In den Vereinigten Staaten von Amerika, in Japan und in Südkorea wird dieser Impfstoff routinemäßig und universell im Kleinkindesalter appliziert, in Deutschland dagegen wird er lediglich als Indikationsimpfung für Risikogruppen empfohlen. Diskussion: In diesem Artikel wird kurz die Varicella-Zoster-Virus(VZV)-Infektion beschrieben, danach werden die Charakteristika des VZV-Impfstoffs dargestellt. Die verschiedenen Möglichkeiten der Anwendung des VZV-Impfstoffs und deren jeweilige Folgen in Deutschland werden diskutiert.
    Type of Medium: Electronic Resource
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