GLORIA

GEOMAR Library Ocean Research Information Access

feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
  • 2020-2024
  • 1985-1989  (10)
  • 1965-1969  (2)
  • 1986  (10)
  • 1966  (2)
Publikationsart
Erscheinungszeitraum
  • 2020-2024
  • 1985-1989  (10)
  • 1965-1969  (2)
Jahr
  • 1
    Digitale Medien
    Digitale Medien
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 60 (1986), S. 2419-2421 
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Electrical conduction data from undoped low-pressure chemically vapor deposited polycrystalline silicon thin films at room temperature and above are presented. The physical mechanisms pertinent to general current-voltage characteristics are experimentally interrogated from three different viewpoints. In the nonlinear current-voltage region, the sheet resistance Rs is shown to vary drastically depending on the device aspect ratio for given applied electrical field E¯. The nonscalability of Rs with respect to E¯, the temperature behavior of Rs, and the photoconductivity data indicate that the nonlinear current-voltage behavior cannot be attributed to field-enhanced conductivity. Other possible mechanisms responsible for observed nonlinearity are discussed.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 2
    Digitale Medien
    Digitale Medien
    s.l. : American Chemical Society
    Journal of natural products 49 (1986), S. 511-513 
    ISSN: 1520-6025
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 3
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 210 (1966), S. 628-629 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Primitive Earth atmospheres, in the presence of added hydrogen sulphide, have been studied by Heyns, Walter and Meyer4. These authors passed a spark through the mixture and found essentially that the hydrogen sulphide had no effect on the syntheses of non-sulphur-containing amino-acids. They ...
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 4
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 23 (1986), S. 0 
    ISSN: 1365-3083
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Three strains of mice hearing the autosomal recessive lpr gene (MRL. C57BL/6 and C3H)that had spontaneously developed a lupus-like disease were studied sequentially for functional natural killer (NK) and natural cytotoxic (NC) cell activity. Natural killing was impaired in spleen and bone marrow cells from all the lpr strains, as well as from the congenic strain MRL- +/+. which develops a late onset lupus-like disease. The NK cell activity was found to be depleted as early as 2 months of age in all lpr strains, and decreased further with age. NK activity was augmentable by Poly I: C and interleukin 2 (IL-2). suggesting that the residual cells can respond to NK modulators. In contrast with NK cell activity. NC activity was not decreased in lpr mice but could be augmented by IL-3-rich supernatants. The spontaneous decrease in NK cell activity was associated with an increased autologous plaque-forming cell (APFC) response to bromelin-treated mouse red blood cells, which is produced primarily by B cells possessing the Ly-1 phenotype (Lyt-1+ B). When NK cell activity was increased by exogenous administration of Poly I:C, the APFC response diminished. Treatment of spleen cells with anti-asialo GM1 prior to Poly I: C treatment resulted in a decreased NK response but increased both APFC and Lyt-1+ B cells. The possible regulation of autoreactivity by NK cells is discussed.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 5
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 475 (1986), S. 0 
    ISSN: 1749-6632
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Allgemeine Naturwissenschaft
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 6
    Digitale Medien
    Digitale Medien
    Springer
    Cellular and molecular life sciences 22 (1966), S. 806-808 
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Zusammenfassung In Gegenwart des exfolierten Tonminerals Vermikulit wird die Zitronensäurebildung durchAspergillus niger besonders stimuliert. Dabei wird die Induktionsphase verkürzt sowie die gesamte Gärgeschwindigkeit im messbaren Bereich der Zitronensäurebildungsphase erhöht. Die Stimulierung scheint einzig auf verbesserten Haushalt der Spurenelemente zurückzuführen zu sein.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 7
    Digitale Medien
    Digitale Medien
    Springer
    International journal of earth sciences 75 (1986), S. 781-790 
    ISSN: 1437-3262
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geologie und Paläontologie
    Beschreibung / Inhaltsverzeichnis: Abstract Limestones and evaporites are the main rock types constituting the exposed Middle Miocene sediments of the Red Sea coastal zone between Quseir and Mersa Alam. These rocks represent typical conekarst and karst ridge landforms with minor surface and subsurface solution features. Mechanical, chemical and biogenic precipitates are the main recognized karst sediments. Oxides and sulphides of iron, lead and zinc and barite are also found in association with the karst features and karst products. The obtained observations elaborate the rule of the structure and lithologic characters of the country rocks and the paleoclimatic fluctuation on the formation of the karst features and the related precipitates.
    Kurzfassung: Résumé Les sédiments du Miocène moyen exposés dans la région cÔtière de la Mer Rouge entre Quseir et Mersa Alam se composent essentiellement de roches calcaires et d'évaporites. Ces roches présentent des formes karstiques en cÔnes et en crètes, accompagnées de structures mineures de dissolution à la fois souterraine et de surface. Les principaux remplissages du karst sont des sédiments mécaniques, chimiques et biologiques. Des oxydes et des sulfures de fer, de plomb et de zinc, ainsi que de la barytine sont également reconnus en association avec les formes et les produits du karst. Les observations recueillies expliquent le rÔle de la structure et des caractères lithologiques des roches encaissantes, ainsi que des fluctuations paléoclimatiques sur la formation des karsts et les sédiments qui les accompagnent.
    Notizen: Zusammenfassung Kalksteine und Evaporite bilden die Sedimente des Mittelmiozäns im Gebiet zwischen Quseir und Mersa Alam. Diese Gesteine zeigen charakteristische Karstphänomene, d. h., regional Kegelkarst, kleinere Karstoberflächen und unterirdische Karstformen. Klastische, chemische und biogene Sedimente werden als Karstfüllungen beobachtet. Oxide und Sulfide von Eisen, Blei und Zink sowie Baryt sind mit dem Karst und den Karstsedimenten verknüpft. Sowohl der Einflu\ der tektonischen Strukturen als auch die Zusammensetzung des mittelmiozänen Ausgangsgesteins und die paleoklimatischen Veränderungen diktieren die Entwicklung des Karstes und die Bildung der Karstsedimente.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 8
    Digitale Medien
    Digitale Medien
    Springer
    Acta neuropathologica 69 (1986), S. 234-243 
    ISSN: 1432-0533
    Schlagwort(e): Forssman carotid syndrome ; Experimental allergic encephalomyelitis (EAE) ; Vasculopathy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary The Forssman carotid syndrome was induced in guinea pigs to study the mechanism of demyelination-like lesions in this animal model and to compare it with experimental allergic encephalomyelitis (EAE). Acute lesions were studied at 1–3 days after intracarotid injection of rabbit anti-Forssman antibody and chronic lesions at 7–21 days post injection, using routine histological, immunofluorescent, and electron-microscopic techniques. The results were compared to those in a group of guinea pigs with acute or chronic lesions of EAE. The picture was remarkably similar in the two conditions, in regard to localization in the central nervous system (CNS), composition of cellular infiltrates, diameter of lesions produced, myelin loss and axonal degeneration, together with gamma globulin deposition in small vessels in affected areas. The differences were that in the Forssman carotid syndrome, in contrast to EAE, there were no mononuclear cell infiltrates in the acute phase, and no evidence of macrophages invading myelin sheaths was detected. Perivascular lesions consisted of demyelination within infiltrates of mononuclear cell in chronic relapsing EAE, but not in the Forssman carotid syndrome. It is suggested that investigation of the distinction between the two models of the CNS may be of benefit in the pathogenetic study of demyelinating disease.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 9
    Digitale Medien
    Digitale Medien
    Springer
    Applied physics 41 (1986), S. 197-199 
    ISSN: 1432-0630
    Schlagwort(e): 72.20 ; 72.70
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: Abstract The noise current spectral density in submicrometer samples is computed using the Monte Carlo method. The normalized spectral density is found to decrease with sample length and increase with the field. The high-field noise is like shot noise and increases with current in agreement with experimental results.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 10
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 321 (1986), S. 684-685 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The systems chosen for study were solutions of sodium and mixed sodium/ alkali metal samples (Na/M, where M = K, Rb and Cs) in the solvent 1, 4, 7, 10-tetraoxacyclododecane (12-crown-4, 12C4; Fig. 1). This solvent has a powerful and specific ability to complex alkali cations. For example, the ...
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...