Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 1995-1999  (2)
  • 1990-1994  (1)
  • 1965-1969  (15)
  • 1960-1964  (12)
  • 1
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 63 (1993), S. 602-604 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The 90° domain walls and comparable ferroelectric domain walls are strong sound emitters in the GHz range. The elastic medium on both sides of the domain wall with its mass and elastic properties is a quasi-infinite transmission line into which the sound is emitted. This emission causes a strong dielectric dispersion at GHz frequencies and may form the basis for many dispersive effects in this frequency range which were observed during the last 40 years in many ferroelectric and even some magnetic materials. A simple elastic-electric equivalent circuit describes the mechanism of sound emission.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1365-2826
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Serotonin (5HT) and the cholinergic analogue carbachol (CCh) act on neurons in the hippocampal CA1 area through pre- and post-synaptic receptors. Previously, it was shown that post-synaptic actions of 5HT and CCh are affected by corticosteroids: predominant activation of high affinity mineralocorticoid receptors resulted in small hyperpolarizing responses to 5HT and small depolarizing responses to CCh; additional activation of low affinity glucocorticoid receptors led to increased 5HT and CCh responses. In the present study, we examined the consequences of steroid modulation of these post-synaptic membrane effects and/or possible pre-synaptic effects by 5HT and CCh for the excitability in the CA1 area, using extracellular field potential or intracellular recordings from individual pyramidal neurons. Steroid treatment by itself did not affect the amplitude or paired pulse properties of synaptic responses. In slices from adrenally intact rats, both 5HT (3–30 μM) and CCh (1–10 μM) induced a dose-dependent suppression of the synaptic field responses evoked in the CA1 area by stimulation of the Schaffer collaterals. No changes in these transmitter effects were observed after adrenalectomy. The 5HT induced suppression of the population spike amplitude was, however, reduced after selective occupation of mineralocorticoid receptors. Intracellularly, no significant steroid dependent modulation of (pre-synaptic) 5HT evoked changes in synaptic responses was observed. These data suggest that the steroids modulate post-synaptic but not pre-synaptic 5HT effects and that this modulation is reflected in the excitability of the CA1 region. The CCh induced suppression of the population spike was not affected by corticosteroid receptor activation, indicating that the previously found steroid modulation of post-synaptic CCh effects has no clear consequences for the CA1 excitability.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 38 (1960), S. 501-501 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung Nach percutaner Anwendung einer heparinoidhaltigen Salbe mit Hyaluronidasezusatz fand sich im Venenblut ein statistisch signifikanter Anstieg des Thrombininhibitors, der nach Anwendung einer Placebosalbe fehlte.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 10 (1964), S. 82-86 
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 16 (1968), S. 377-377 
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 13 (1966), S. 121-124 
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 6 (1960), S. 432-440 
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 23 (1967), S. 234-234 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Eine kritische Bewertung der vonGrunberg undPrince publizierten Ergebnisse und eigene Versuche lassen an einer deutlichen cytostatischen Aktivität von Ibenzmethyzin-Hydrochlorid (Natulan®) gegenüber H.Ad. Nr. 1 zweifeln. Eine neue Methode zur Erfassung chemotherapeutischer Effekte an Transplantationstumoren in der Hamsterbackentasche wird vorgeschlagen.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 18 (1968), S. 183-184 
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 10
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Using the azo-coupling method, alkaline leucocyte phosphatase has been measured in 29 patients with lymphogranuloma, 16 with malignant growth of the reticulo-endothelial system and 9 with lymphadenosis. Because of the wide scatter of alkaline leucocyte phosphatase values in lymphogranuloma and diseases of the reticular system, it is possible to diagnostically differentiate between these and lymphadenosis and probably also lymphosarcoma only under, certain conditions. At low enzymic activities, it is not possible to distinguish between chronic lymphadenosis, lymphosarcoma, lymphogranuloma and general malignant reticuloma. On the other hand, at high phosphatase levels, diagnosis between lymphogranuloma and an essential proliferation of the reticulo-endothelial system is certain. Within the family of diseases of the reticulo-endothelial system, the phosphatase test shows large variations in activity between malignant reticuloma and plasmacytoma and possibly reticulosarcoma. If the differential diagnosis is narrowed down to acute myeloma or a malignant reticuloma, a higher alkaline phosphatase content in the neutrophilic granulocytes confirms the reticuloma. Comparison of the alkaline leucocyte phosphatase with the absolute value for neutrophils in peripheral blood and during hypostasis, gives an indication of leucocyte function. The consequences of this are discussed.
    Notes: Zusammenfassung An 29 Patienten mit Lymphogranulomatose, 16 Kranken mit malignem Wachstum des Retikuloendothels und 9 an chronischer Lymphadenose Erkrankten wurden Bestimmungen der alkalischen Leukozytenphosphatase unter Verwendung der Azo-Kupplungsmethode vorgenommen. Wegen der starken Streuung der alkalischen Leukozytenphosphatase bei der Lymphogranulomatose und bei den retikulären Systemkrankheiten ist differentialdiagnostisch eine Abgrenzung von der chronischen Lymphadenose und wahrscheinlich auch vom Lymphosarkom nur bedingt möglich. Bei einer niedrigen Fermentaktivität kann zwischen einer chronischen Lymphadenose, dem Lymphosarkom, dem Morbus Hodgkin und einer malignen Retikulose im weiteren Sinne nicht unterschieden werden. Andererseits muß beim Vorliegen eines hohen Phosphatasegehaltes die Diagnose zwischen einer Lymphogranulomatose und einer essentiellen Proliferation des Retikuloendothels offen bleiben. Innerhalb der, Gruppe der retikulären Systemkrankheiten zeigen die eigentliche maligne Retikulose und das Plasmozytom, möglicherweise auch das Retothelsarkom, erhebliche Schwankungen des Phosphatasetests. Ist die Differentialdiagnose eingeengt auf eine akute Myelose oder eine maligne leukaemische Retikulose, so rechtfertigt ein hoher Gehalt der neutrophilen Granulozyten an alkalischer Phosphatase die Entscheidung zugunsten der Retikulose. Vergleichende Untersuchungen der alkalischen Leukozytenphosphatase mit dem Absolutwert der Neutrophilen im peripheren Blut und der Blutsenkung eröffnen Einblicke in die Leukozytenfunktion. Die sich hieraus ergebenden Konsequenzen werden diskutiert.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...