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  • 1
    Online Resource
    Online Resource
    Annual report / Institute of Nuclear and Hadron Physics; 2004 (2005)
    Dresden : Forschungszentrum Rossendorf
    Associated volumes
    Details Availability
    Keywords: Forschungsbericht ; Hadron
    In: 2004
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (130 Seiten, 12,6 MB) , Illustrationen, Diagramme
    Series Statement: Wissenschaftlich-Technische Berichte / Forschungszentrum Rossendorf, FZR 401
    URL: https://edocs.tib.eu/files/e01fn16/871638290.pdf
    Language: English
    Note: Literaturangaben
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  • 2
    Online Resource
    Online Resource
    Annual report / Institute of Nuclear and Hadron Physics; 2005 (2006)
    Dresden : Forschungszentrum Rossendorf
    Associated volumes
    Details Availability
    Keywords: Forschungsbericht ; Hadron
    In: 2005
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (121 Seiten, 8.168 kB) , Illustrationen, Diagramme
    Series Statement: Wissenschaftlich-Technische Berichte / Forschungszentrum Rossendorf, FZR 442
    URL: https://edocs.tib.eu/files/e01fn16/871669730.pdf
    Language: English
    Note: Literaturangaben
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  • 3
    Electronic Resource
    Electronic Resource
    Properties of sputtered superconducting films of Bi2Sr2CaCu2Ox made by low-temperature in situ growth (1989)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 55 (1989), S. 2135-2137 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Superconducting films of Bi2Sr2CaCu2Ox have been fabricated on single-crystal MgO substrates by a low-temperature in situ process. Using a substrate temperature Ts≈645 °C, metallic films with a superconducting onset of 90–100 K and an extrapolated Tc0=56 K have been obtained. X-ray diffraction shows the films to be c-axis oriented. Electron microscopy reveals that the films are not significantly smoother than films which were post-annealed at 865 °C, and that some segregation into nonsuperconducting phases had occurred. The exact mechanism by which crystallization and superconductivity occurs at such low temperatures is not yet known, but it can be speculated that the surface atoms are less constrained and thus have a smaller energy barrier to overcome in forming a crystal structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.102347
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  • 4
    Electronic Resource
    Electronic Resource
    In situ measurement of ion-beam-induced deposition of gold (1989)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 65 (1989), S. 3636-3643 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: An experimental system for measuring ion-beam-induced deposition yield is described. Gold films were deposited on quartz-crystal microbalances (QCM) by decomposing dimethyl gold hexafluoroacetylacetonate molecules (C7H7F6O2Au) with a 5-keV argon-ion beam. The QCMs provide an in situ measurement of the deposition rate as a function of ion dose, dose rate, gas pressure, and substrate temperature. The deposition yield, or mass deposited per incident ion, is shown to increase with increasing pressure and decreasing temperature. The yield is independent of the ion dose rate, which implies that the deposition process is not due to macroscopic heating. The deposition yield is shown to depend on the sputter yield of the substrate. The density of the deposited films was determined to be about 10 g/cm3, which is about half the density of bulk gold (19.3 g/cm3). The difference in density is due to carbon contamination in the deposited films.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.342612
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  • 5
    Electronic Resource
    Electronic Resource
    Ion cluster emission and deposition from liquid gold ion sources (1985)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 58 (1985), S. 2724-2730 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The emission and deposition of molten gold droplets from needle-tip liquid metal ion sources was investigated. The Taylor cone was identified as the source of droplet emission. An upper limit of 8 μm for the virtual source size was measured. Gold films were deposited on silicon substrates. The deposited gold spots showed a peaked, axially symmetric, distribution with a half angle for droplet emission of ∼2° which was considerably smaller than the ion emission angle of ∼45°. Typical deposition fluxes were ∼5×105 μm3/s/sr with total deposition rates of ∼3×103 μm3/s and on an average droplet diameter of ∼1 μm at an emission current of 150 μA. Smaller diameter droplets are produced with decreasing emission current and angle. Gold films with a fine textured morphology suitable for submicron patterning were obtained at emission currents less than ∼135 μA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.336300
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  • 6
    Electronic Resource
    Electronic Resource
    Controlled cortical impact injury affects dopaminergic transmission in the rat striatum (2005)
    Oxford, UK : Blackwell Science Ltd
    Journal of neurochemistry 95 (2005), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The therapeutic benefits of dopamine (DA) agonists after traumatic brain injury (TBI) imply a role for DA systems in mediating functional deficits post-TBI. We investigated how experimental TBI affects striatal dopamine systems using fast scan cyclic voltammetry (FSCV), western blot, and d-amphetamine-induced rotational behavior. Adult male Sprague–Dawley rats were injured by a controlled cortical impact (CCI) delivered unilaterally to the parietal cortex, or were naïve controls. Amphetamine-induced rotational behavior was assessed 10 days post-CCI. Fourteen days post-CCI, animals were anesthetized and underwent FSCV with bilateral striatal carbon fiber microelectrode placement and stimulating electrode placement in the medial forebrain bundle (MFB). Evoked DA overflow was assessed in the striatum as the MFB was electrically stimulated at 60 Hz for 10 s. In 23% of injured animals, but no naïve animals, rotation was observed with amphetamine administration. Compared with naïves, striatal evoked DA overflow was lower for injured animals in the striatum ipsilateral to injury (p 〈 0.05). Injured animals exhibited a decrease in Vmax (52% of naïve, p 〈 0.05) for DA clearance in the hemisphere ipsilateral to injury compared with naïves. Dopamine transporter (DAT) expression was proportionally decreased in the striatum ipsilateral to injury compared with naïve animals (60% of naïve, p 〈 0.05), despite no injury-related changes in vesicular monoamine transporter or D2 receptor expression (DRD2) in this region. Collectively, these data appear to confirm that the clinical efficacy of dopamine agonists in the treatment of TBI may be related to disruptions in the activity of subcortical dopamine systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.2005.03382.x
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  • 7
    Electronic Resource
    Electronic Resource
    Enzyme-catalyzed organic syntheses: transesterification reactions of chlorophyll a, bacteriochlorophyll a, and derivatives with chlorophyllase (1988)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 110 (1988), S. 5888-5891 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00225a047
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  • 8
    Electronic Resource
    Electronic Resource
    The role of gas adsorption in ion-beam-induced deposition of gold (1989)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 66 (1989), S. 870-874 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Gold films were deposited on quartz crystal microbalances (QCM) by decomposing C7H7F6O2Au [dimethyl gold hexafluoroacetylacetonate, or DMG(hfac)] with a 5-keV argon-ion beam. A model for ion-beam-induced deposition is presented which relates the net deposition yield to the gas adsorption, the decomposition cross section, and the sputtering yield. The deposition rate was measured in situ as a function of ion current, gas pressure, and substrate temperature using the QCM. The deposition yield (mass deposited per incident ion) increased with increasing gas pressure and decreasing substrate temperature. The QCM was also used to measure the adsorption of DMG(hfac). The results demonstrated that the variation in deposition yield with temperature and pressure was proportional to the number of DMG(hfac) molecules adsorbed per cm2. Based on the observed correlation between deposition yield and adsorption, a decomposition cross section for 5-keV argon ions of 2×10−13 cm2 was estimated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.343512
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  • 9
    Electronic Resource
    Electronic Resource
    Distribution of metals in annual rings of the beech (Fagus sylvatica) as an expression of environmental changes (1986)
    Springer
    Cellular and molecular life sciences 42 (1986), S. 537-542 
    Details
    ISSN: 1420-9071
    Keywords: Annual ring ; beech ; trace metals ; environmental pollution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Annual rings of 140–160-year-old beeches (Fagus sylvatica) from St. Ingbert, Saarland (FRG) were prepared and analyzed for 14 metals by atomic absorption spectroscopy. According to the chronological variations of their concentrations, the elements could be divided into three groups: 1) Metals without any tendency for chronological changes. This was established for Na, K, Cu, Cr, Co, Ni, Pb, and Cd. 2) Metals with a recent decrease of their concentrations, appropriate for Ca, Mg, Mn, and Zn. 3) Metals with a recent tendency to increase, e.g. Fe and Al. These variations are discussed in connection with the industrial history of the Saarland region and the influence of acid immissions which may alter the soil and thereby the trace element metabolism of the trees with consequences for the vitality of the plants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01946693
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  • 10
    Electronic Resource
    Electronic Resource
    On an infinite class of Steiner systems constructed from affine spaces (1986)
    Springer
    Archiv der Mathematik 47 (1986), S. 376-378 
    Details
    ISSN: 1420-8938
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01191366
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