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  • 1990-1994  (17)
  • 1965-1969  (9)
  • 1960-1964  (8)
  • 1955-1959  (7)
  • 1
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We present results of the total cross section differenceΔσ Т obtained in transmission measurements at the energies 0.86, 0.88, 0.91 and 0.94 GeV. The SATURNE II polarized beam of free neutrons obtained from the break-up of polarized deuterons was transmitted through the polarized Saclay frozen-spin proton target. The beam and target polarizations were oriented in the vertical direction. The present results agree with previous SATURNE measurements and improve the amplitude analysis in the forward direction.
    Type of Medium: Electronic Resource
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  • 2
    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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  • 3
    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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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 86 (1992), S. 207-215 
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The nature of the optical absorption gap in NiO at 4.0 eV is investigated. It is found that this gap is due to a band to band transition, where an electron is taken out of the valence band and placed into the conduction band. The optical gap of 6.0 eV found in Ni∶MgO is of a nature, where an electron is taken out of the oxygen 2p band and placed into the first affinity level of the Ni2+ ion (3d 8L»3d 9L−1). The impurity band created in Ni1−x Li x O by the Li ions is found 2.3 eV below the bottom of the conduction band in agreement with model predictions.
    Type of Medium: Electronic Resource
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  • 5
    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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  • 6
    ISSN: 1432-1440
    Keywords: Calcium carbonate ; Phosphate ; Chronic renal failure ; Aluminium ; Hyperparathyroidism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Calcium carbonate has been successfully used as a phosphate binder in patients with chronic renal failure; however, a high frequency of hypercalcaemia has been reported. To study the effects of calcium carbonate preparations with different dissolution characteristics on the incidence of this side effect, we conducted a double-blind, crossover trial in 21 patients undergoing chronic haemodialysis. Aluminium hydroxide therapy was replaced with calcium carbonate. The subjects then randomly received either an enteric-coated or a gastric-coated preparation. Calcium carbonate (3.1–3.6 g/d) controlled serum phosphate concentrations as effectively as aluminium hydroxide (2.9 g/d). Concurrently, there was a significant rise in mean serum calcium and a fall in serum concentrations of both parathyroid hormone and osteocalcin, the latter suggesting a decrease in bone turnover. Overall, hypercalcaemic episodes developed in 9 patients (43%) and occurred at a considerable frequency (33 episodes per 100 patient-months) during treatment with the gastric-coated formulation. Following conversion to enteric-coated calcium carbonate (3.6 g/d) patients had fewer occurrences of hypercalcaemia (12 episodes per 100 patient-months,P〈0.05) and, as compared to the gastric-coated preparation, increases in serum calcium 〉3.00 mmol/l were not observed at all. Hyperaluminaemia was regressive during therapy with calcium carbonate, but addition of small doses of aluminium hydroxide caused a large rise in serum aluminium concentrations after infusion of desferrioxamine, indicating an enhanced rate of absorption or aberrant compartmentalization of aluminium. We conclude that calcium carbonate can control hyperphosphataemia in dialysis patients. However, undesirable hypercalcaemic episodes may occur, the frequency and severity of which can be lowered by the use of an enteric-coated preparation. Concomitant use of aluminium hydroxide and calcium carbonate should be restricted to patients in whom the degree of aluminium accumulation is monitored by serial desferrioxamine tests.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 191 (1958), S. 212-223 
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung Es wurden licht- und elektronenmikroskopische Untersuchungen am Gitterfasersystem des Corpusendometriums vorgenommen. Dabei konnte festgestellt werden, daß das endometrane Fasergerüst, welches wahrscheinlich extracellulärer Herkunft ist, während des Cyclus und in der Gravidität charakteristischen Veränderungen unterworfen ist. Mehrere Tatsachen sprechen dafür, daß das Gitterfasersystem mit den zelligen Bestandteilen der Corpusmucosa eine anatomische und funktionelle Einheit bildet. Bei den Forschungen über das Corpusendometrium müssen daher beide Systeme gleichzeitig berücksichtigt werden.
    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
    Journal of molecular medicine 35 (1957), S. 1027-1029 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung 1. Nach intravenöser Injektion von kolloidalen Substanzen oder Kongorot steigen die Werte von ATP + ADP im Blut von Kaninchen und Menschen an. 2. Der zeitliche Ablauf dieses Anstiegs wird am besten durch Bestimmungen unmittelbar vor und 2, 4, 7 und 24 Std nach der Injektion erfaßt. Kurvenmäßig dargestellt ergeben die gewonnenen Werte relativ gleichförmige ansteigende und nach 4–7 Std wieder abfallende Kurven. 3. Derartige Kurven wurden an 40 Gesunden, 40 Leberkranken und der gleichen Zahl Patienten mit den verschiedensten anderen Krankheitengewonnen. 4. Mit hoher Regelmäßigkeit traten bei Leberkranken abfallende Werte auf, die bei andern Krankheiten nicht beobachtet werden. 5. Es wirken sich offenbar schon recht kleine Störungen der Leberfunktion in dem geschilderten Sinne aus, so daß durch Äthernarkose entstandene interkurrente Leberschäden noch 12–14 Tage lang nachgewiesen werden können.
    Type of Medium: Electronic Resource
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