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  • Articles: DFG German National Licenses  (8)
  • 2000-2004  (3)
  • 1990-1994  (5)
  • 1880-1889
  • 2001  (3)
  • 1991  (5)
Source
  • Articles: DFG German National Licenses  (8)
Material
Years
  • 2000-2004  (3)
  • 1990-1994  (5)
  • 1880-1889
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Coadsorption of cyclic hydrocarbons and cesium on platinum(111): electronic and ensemble effects (1991)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 95 (1991), S. 6632-6642 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100170a047
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Erratum: "Microcalorimetric measurements of the heat of adsorption of Pb on well-defined oxides: MgO(100) and p(2×1)-oxide on Mo(100)" [J. Chem. Phys. 114, 3752 (2001)] (2001)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 115 (2001), S. 6798-6798 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1404394
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  • 3
    Electronic Resource
    Electronic Resource
    Microcalorimetric measurements of the heat of adsorption of Pb on well-defined oxides: MgO(100) and p(2×1)-oxide on Mo(100) (2001)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 114 (2001), S. 3752-3764 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The energetics of Pb film grown at 300 K on two well-defined oxides [a MgO(100) thin film and a p(2×1)-oxide on Mo(100)] have been measured using single-crystal adsorption microcalorimetry. The evolution of the film morphology was followed using Auger electron spectroscopy (AES). An initial heat of adsorption of 103 kJ/mol is observed for the Pb/MgO(100) system. Auger results indicate that this is due to the formation of an ∼20 atom Pb island in the first pulse of Pb gas incident on the MgO(100) surface. This allows the extraction of a Pb–MgO(100) bond energy of ∼32±2 kJ/mol in the small two-dimensional particles formed in the first pulse. As more Pb is deposited onto the MgO(100) surface, the Pb forms three-dimensional islands. The integral of the heats of adsorption up to high coverage indicates an adhesion energy of 76.5±∼20 μJ/cm2 for large 3D Pb particles to the MgO(100) substrate. This indicates a Pb–MgO(100) bond energy of 49±13 kJ/mol at the 3D interface. Similar analyses of the Pb/p(2×1)-oxide on Mo(100) surface give an initial heat of adsorption of 146.2 kJ/mol and an adhesion energy of 82.5±20 μJ/cm2 for thick Pb films. This indicates a bond energy of 52±12 kJ/mol for a Pb atom to this surface at the interface of a thick Pb film. The metal's sticking probabilities as a function of coverage and the coverage-dependent changes in optical reflectivity were measured. For the Pb/MgO(100) system, an initial sticking probability of 0.70 at 300 K was observed, whereas for the Pb/p(2×1)-oxide on Mo(100) surface unit sticking probability was observed. The relationship between these quantities and the adsorption energetics is discussed. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1337097
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Receptor-mediated endocytosis of Neisseria gonorrhoeae into primary human urethral epithelial cells: the role of the asialoglycoprotein receptor (2001)
    Oxford, UK : Blackwell Science Ltd
    Molecular microbiology 42 (2001), S. 0 
    Details
    ISSN: 1365-2958
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Urethral epithelial cells are invaded by Neisseria gonorrhoeae during gonococcal infection in men. To understand further the mechanisms of gonococcal entry into host cells, we used the primary human urethral epithelial cells (PHUECs) tissue culture system recently developed by our laboratory. These studies showed that human asialoglycoprotein receptor (ASGP-R) and the terminal lactosamine of lacto-N-neotetraose-expressing gonococcal lipooligosaccharide (LOS) play an important role in invasion of PHUECs. Microscopy studies showed that ASGP-R traffics to the cell surface after gonococcal challenge. Co-localization of ASGP-R with gonococci was observed. As ASGP-R-mediated endocytosis is clathrin dependent, clathrin localization in PHUECs was examined after infection. Infected PHUECs showed increased clathrin recruitment and co-localization of clathrin and gonococci. Preincubating PHUECs in 0.3 M sucrose or monodansylcadaverine (MDC), which both inhibit clathrin-coated pit formation, resulted in decreased invasion. N. gonorrhoeae strain 1291 produces a single LOS glycoform that terminates with Gal(β1–4)GlcNac(β1–3)Gal(β1–4)Glc (lacto-N-neotetraose). Invasion assays showed that strain 1291 invades significantly more than four isogenic mutants expressing truncated LOS. Sialylation of strain 1291 LOS inhibited invasion significantly. Preincubation of PHUECs in asialofetuin (ASF), an ASGP-R ligand, significantly reduced invasion. A dose–response reduction in invasion was observed in PHUECs preincubated with increasing concentrations of NaOH-deacylated 1291 LOS. These studies indicated that an interaction between lacto-N-neotetraose-terminal LOS and ASGP-R allows gonococcal entry into PHUECs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2958.2001.02666.x
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Response of Phorodon humuli to yellow and to green hop foliar colours (1991)
    Springer
    Entomologia experimentalis et applicata 60 (1991), S. 95-99 
    Details
    ISSN: 1570-7458
    Keywords: Aphididae ; Phorodon humuli ; host selection ; foliar colour
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00164963
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Pseudomicrodochium fusarioides sp. nov., isolated from human bronchial fluid (1991)
    Springer
    Mycopathologia 114 (1991), S. 159-161 
    Details
    ISSN: 1573-0832
    Keywords: Pseudomicrodochium ; phaeohyphomycosis ; lung isolate ; new species
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A fungus from bronchial lavage fluid from a patient with pulmonary infiltration was isolated in pure culture and identified as a species of Pseudomicrodochium. It is compared and contrasted with other species of the genus, in particular P. suttonii, and formally described as P. fusarioides.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00437207
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    C2 rotation and spinous process deviation in migraine: cause or effect or coincidence? (1991)
    Springer
    Neuroradiology 33 (1991), S. 475-477 
    Details
    ISSN: 1432-1920
    Keywords: Migraine ; Computed tomography ; Cervical spine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Previous reports have shown an association between the side of C2 spinous process deviation or asymmetrical prominence, or vertebral rotation, and the side of the headache in unilateral migraine. However, this study has found that such C2 appearances were present as frequently in the controls as in the migraine patients, and that there was no association between the side of the anomaly and the lateralisation of the headache. The results were comparable for the different sub-groups of migraine.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00588037
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Molecular recognition using surface-enhanced Raman scattering from citrate-reduced silver colloids in non-aqueous solvents (1991)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 22 (1991), S. 771-775 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Surface-enhanced Raman scattering (SERS) from citrate-coated colloidal particles suspended in organic solvents is used to study surface reactions in an organic phase. Stable colloids which gave good SERS were produced from ethanol and acetonitrile. SERS was easily discriminated from the bulk solvent Raman scattering. Compounds which are sparingly soluble in water including 2,2′-bipyridine and benzene-1,2,4,5-tetracarboxylic acid dianhydride produced good SERS in ethanol. In the latter case, no SERS was observed from an aqueous colloid. Therefore, some form of solvent-dependent molecular recognition may operate. The formation of a bipyridine complex with copper(II) at the surface in a solvent system in which the ligand and complex are both soluble was observed. The solvent altered surface reactions. In the ethanol colloid, in contrast to the result in aqueous colloid, pyridine does not replace citrate readily. This work demonstrates the potential for the expansion of the use of colloidal SERS into the field of surface reactions in contact with an organic phase and is related to metal liquid-like films.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250221208
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    Paper (German National Licenses)
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