Library

X
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
  • 2000-2004  (3)
  • 1975-1979  (5)
  • 1925-1929  (1)
Source
Material
Years
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Calibration of optical tweezers with differential interference contrast signals (2002)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 73 (2002), S. 1687-1696 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A comparison of different calibration methods for optical tweezers with the differential interference contrast (DIC) technique was performed to establish the uses and the advantages of each method. A detailed experimental and theoretical analysis of each method was performed with emphasis on the anisotropy involved in the DIC technique and the noise components in the detection. Finally, a time of flight method that permits the reconstruction of the optical potential well was demonstrated. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1460929
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The optical variability of 3C345 (1977)
    [s.l.] : Nature Publishing Group
    Nature 268 (1977), S. 318-319 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have collected in Fig. 1, 485 B-magnitudes by Kinman et al.1, Barbieri and Erculiani3, Tritton and Selmes4, Smyth and Wolstencroft5, McGimsey et al.Q, Selmes et al.1, Markova et al.8, Markova andZhukov* and from unpublished data obtained at Asiago. To simplify discussion, observations in ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/268318a0
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Blue objects in the field of M31 (1976)
    Springer
    Astrophysics and space science 44 (1976), S. 405-408 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract This paper gives the results of a photometric study of star-like blue objects Nos. 14, 15, 16, 17, and 18 discovered by Börngenet al. (1970) in the field of M31 and of the QSO OA 33. Three of these objects-Nos. 14, 16 and 17-exhibit variable light. No. 14 is a probable U Geminorum-star; No. 16 is a QSO and very likely also the No. 17. Finally, we suggest a candidate for the optical counterpart of OA 33.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00642528
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Optical observations of the nucleus of NGC 4151 (1977)
    Springer
    Astrophysics and space science 50 (1977), S. 421-423 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Photographic observations of the nucleus of the Seyfert galaxy NGC 4151, carried out during the last seven years, are reported. The object shows irregular variations between photographic magnitudes 11.2 and 13.0.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00641746
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Duplicity of some T Tauri stars and related variables (1975)
    Springer
    Astrophysics and space science 33 (1975), S. 487-490 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A number of double stars of which at least one component is a T Tauri star or related variable were measured in three fields: φ and χ Tauri (Taurus dark cloud); NGC 7023 and NGC 2264.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00640114
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    facet.materialart.
    Unknown
    The Mother (1927)
    London, etc. : Periodicals Archive Online (PAO)
    Slavonic and East European review. 6 (1927/1928) 397 
    Details
    ISSN: 0037-6795
    Topics: History , Slavonic Studies
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:0072-1927-006-00-000042
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Glucose-induced loss of glycosyl-phosphatidylinositol-anchored membrane regulators of complement activation (CD59, CD55) by in vitro cultured human umbilical vein endothelial cells (2000)
    Springer
    Diabetologia 43 (2000), S. 1039-1047 
    Details
    ISSN: 1432-0428
    Keywords: Keywords CD59 ; CD55 ; CD46 ; endothelial cells ; glucose ; diabetes mellitus ; vascular complications ; MAC
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Aims/hypothesis. This study examines whether increased glucose concentrations are responsible for a decreased expression of membrane regulators of complement activation molecules. The effect of high glucose in determining an increase in membrane attack complex deposition on endothelial cells was also investigated. Methods. Endothelial cells were isolated from umbilical cord tissue, cultured in the presence of increased concentrations of glucose, and the expression of CD46, CD55, and CD59 was detected by ELISA (enzyme-linked immunosorbent assay) and by flow cytometry. Glucose-treated endothelial cells were also incubated with antiendothelial cell antibodies and fresh complement to assess the amount of membrane attack complex formation. Results. High concentrations of glucose decreased the expression of CD59 and CD55 by endothelial cells in a time-dependent and glucose concentration-dependent manner without affecting CD46 expression. High concentrations of soluble CD59 were found in the supernatants of cells treated with high glucose. The decrease in CD59 expression induced by high glucose concentrations was reversed by coincubation of cells with a calcium channel blocking agent (Verapamil). All of these effects were not reproduced by osmotic control media. Cells treated with concentrations of high glucose were more susceptible to complement activation and membrane attack complex formation after exposure to antiendothelial cell antibodies. Conclusion/Interpretation. We speculate that hyperglycaemia could directly contribute to a loss of CD59 and CD55 molecules through a calcium-dependent phosphoinositol-specific phospholipase C activation and subsequent regulation of cell wall expression of GPI-anchored proteins. This phenomenon could facilitate the activation of a complement pathway and could play a part in the aetiology of endothelial dysfunction in diabetes. [Diabetologia (2000) 43: 1039–1047]
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001250051487
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Investigation of the near wake of a propeller using particle image velocimetry (2000)
    Springer
    Experiments in fluids 29 (2000), S. S227 
    Details
    ISSN: 1432-1114
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The investigation of a propeller wake is carried out in a cavitation tunnel using particle image velocimetry. To achieve high spatial resolution, a multigrid adaptive cross-correlation algorithm is used for image analysis. The contributions of the viscous wake, originated by the boundary layer on the blades of the trailing vortex sheets, as well as of the vorticity distribution are resolved and discussed for different angular positions of the blade. The near wake flow is characterised by strong deformations, due to the bending of the blade wake sheets, to the contraction of the slipstream and to the trajectory of the tip vortex. The turbulent diffusion and the viscous dissipation rapidly lead to broadening and decay of the trailing edge wake. Furthermore, secondary tip vortex structures are also pointed out.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003480070025
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Structure-property relationships in some composite systems. Viscoelasticity (1977)
    Springer
    Rheologica acta 16 (1977), S. 95-99 
    Details
    ISSN: 1435-1528
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Zusammenfassung In der vorliegenden Veröffentlichung wird über das dynamisch-mechanische Verhalten einiger zusammengesetzter Polymersysteme berichtet. Diese Systeme wurden durch Vulkanisieren von cis-1,4-Polybutadien mit einer gewissen Menge von Methacrylsäure oder Magnesiummethacrylat hergestellt. Die erhaltenen Ergebnisse sind mit dem aufgestellten Strukturmodell in Übereinstimmung.
    Notes: Summary In the present paper we report the dynamic mechanical behaviour of some composite systems. These systems were obtained vulcanizing the cis-1,4-polybutadiene in mixture with a different amount of methacrylic acid or magnesium methacrylate. The obtained results support our structural model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01516933
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...