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  • Articles: DFG German National Licenses  (68)
  • 1995-1999  (68)
  • 1
    Electronic Resource
    Electronic Resource
    The rotationally resolved infrared spectrum of the ν1 stretch of the allyl radical (1998)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 109 (1998), S. 7803-7809 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Transient infrared (IR) laser spectroscopy near 3100 cm−1 was used to observe the ν1 and ν13 transitions of the allyl radical, with their band origins found to lie at 3113.9779(3) cm−1 and near 3110.5 cm−1, respectively. Detailed assignment and analysis of the ν1 transition identified over 1100 transitions, and yielded improved values for ΔK and ΦK ground state centrifugal distortion constants, as well as a new set of excited state (ν1=1) rotational and centrifugal distortion constants, in addition to determining the band origin. Transitions involving states with quantum number up to Ka=11 and N=27 were identified. Strong perturbations were found in the excited state, included global perturbations of the Ka′=3 branch, extensive perturbations in the Ka′=2 and 4 branches, and very localized perturbations in the Ka′=6 branch. The Ka′=9 and 10 branches also appear to be significantly perturbed. Possible sources for these perturbations are discussed. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.477426
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    High precision, high-heat-load mirror for the APS diagnostics beamline : The 9th National conference on synchrotron radiation instrumentation (1996)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 67 (1996), S. 3356-3356 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A high precision mirror for measuring the storage ring beam size is under fabrication for the APS diagnostics beamline. The mirror, which will be located at 12.9 meters from the bending magnet source, is required to maintain less than 1.6 microradian slope error. The mirror design consists of a slot in the center in order to reduce incident power from the 300-mA, 7-GeV beam during normal operation. Water channels with fins are machined in the GlidCop mirror body to protect it against extremely high heat loads under accidental beam deviations. The mechanical design of the mirror, and results from a thermal analysis are presented in this paper. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1147375
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Passive vibration damping of the APS machine components : The 9th National conference on synchrotron radiation instrumentation (1996)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 67 (1996), S. 3374-3374 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The accelerator and beamline components of the Advanced Photon Source have stringent vibration criteria in order to meet the beam stability requirements. For instance, the vibration amplitude of the storage ring quadrupoles is restricted to 0.11 μm (rms) over a frequency range of 4–50 Hz. Damping pads, consisting of thin viscoelastic films sandwiched between stainless steel plates, have been designed for passive vibration damping. Results presented in this paper show that the damping pads under the storage ring girder-magnet assemblies reduced the vibration amplification factor Q from over 100 to 8. The broad band rms motion of the magnets was reduced by a factor of 2.5 to 3. Preliminary results for a monochromator housing show a potential use of such damping pads for vibration control of beamline components. Radiation and creep effects on the damping pads' performance are considered. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1147343
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Dispersion properties of low-frequency waves in magnetized dusty plasmas with dust size distribution (1996)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 3 (1996), S. 4380-4385 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Dispersion properties of some low-frequency modes in magnetized dusty plasmas have been investigated theoretically, taking into account the dust size distribution. In contrast to earlier work on dispersion properties of different modes in magnetized dusty plasmas with a single dust size, it is assumed that the dust grains are distributed in size. Assuming that the dust size is given by a power law distribution, with a nonzero minimum and finite maximum grain size, the effect of dust size distribution on the dispersion properties of some electrostatic and electromagnetic modes in magnetized dusty plasmas is investigated. It is seen that in the very low-frequency (VLF) regime, taking into account the size distribution leads to a new kind of damping for an electrostatic dust-cyclotron and right-handed circularly polarized (RCP) electromagnetic Alfvén mode, whereas the left-handed circularly polarized (LCP) Alfvén mode remains undamped. In the low-frequency (LF) regime, size distribution results only in the modification of the dispersion relations for all the modes. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872055
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Solarization and natural heating of irrigated soil amended with cruciferous residues for improved control of Macrophomina phaseolina (1997)
    Oxford, U.K. and Cambridge, USA : Blackwell Science Ltd
    Plant pathology 46 (1997), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The efficacy of summer irrigation and soil solarization combined with cruciferous residues was tested against the dry root rot pathogen Macrophomina phaseolina in an arid climate. In irrigated amended soil, polyethylene mulching during May increased the soil temperature to 57°C and 50°C at depths of 0–15 and 16–30 cm, respectively. As a result, within l5 days the population of M. phaseolina was almost eradicated (93–99%) at both soil depths. A considerable reduction (75–96%) was also achieved by natural heating of irrigated soil (46–53°C) for l5 days after amending with cruciferous residues. Mulching alone was only partially effective (69–89% reduction). These results suggest a new approach to controlling soil-borne pathogens in hot, arid regions by combining summer irrigation with soil amendment. Amendment with residues alone or in conjunction with soil solarization also increased the population of lytic bacteria against M. phaseolina.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-3059.1997.d01-223.x
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    A Novel Pentacyclic Triterpene Acid from Adenocalymma alliaceum Leaves (1995)
    s.l. : American Chemical Society
    Journal of natural products 58 (1995), S. 1056-1058 
    Details
    ISSN: 1520-6025
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/np50121a010
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    A survey of obstetric patients who refuse regional anaesthesia (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 50 (1995), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: One hundred obstetric patients presenting for elective surgery who had refused regional anaesthesia were interviewed just prior to entering the operating room. In each case, the reason for refusing a regional technique was recorded. The most frequent reasons given were fear of backache (33%) and fear of the needle (28%). Anaesthetists should be aware of patients’ concerns and be able to discuss the relevant issues.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2044.1995.tb06110.x
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  • 8
    Electronic Resource
    Electronic Resource
    Effect of non-ionic nonylphenol surfactants on surface physicochemical properties, uptake and distribution of asulam and diflufenican (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Weed research 36 (1996), S. 0 
    Details
    ISSN: 1365-3180
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The effect of non-ionic nonylphenol (NP) surfactants containing 4–14 ethylene oxide (EO) molecules on the distribution of asulam and diflufenican was investigated in Pteridium aquilinum L. Kuhn and Avena fatua L. The distribution of the herbicides was dependent on the EO content and concentration of surfactant and differed between plant species and herbicide. The surface properties of contact angle, droplet diameter and surface tension were examined. For solutions of asulam, the greatest reductions in contact angle, surface tension and greatest droplet diameter were obtained with surfactants of EO 6.5–10 (at 0.001–0.1%). For solutions of diflufenican, these responses were greatest when applied with surfactant of EO 4. Surfactants of EO 6.5–10 increased the uptake and translocation of [14C]asulam in P. aquilinum, particularly at surfactant concentrations of 0.01 % and 0.1 %. All surfactants increased uptake of [14C]asulam in A. fatua with no significant effects of surfactant EO number or concentration. For both species, there was a positive correlation between the optimum surface characteristics of the herbicide droplets and the uptake of asulam. With diflufenican, greatest uptake and translocation by mature frond tissue of P. aquilinum occurred at the highest concentration of surfactant EO 4; in A. fatua, however, uptake and translocation were not significantly affected by any of the surfactants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3180.1996.tb01652.x
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Human epidermal melanocyte and keratinocyte melanotropin receptors: visualization by melanotropic peptide conjugated macrospheres (polyamide beads) (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Experimental dermatology 6 (1997), S. 0 
    Details
    ISSN: 1600-0625
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract The objectives of this research were to determine whether melanotropin receptors are characteristic membrane markers of human epidermal melanocytes. Methodologies were developed to visualize these receptors by light microscopy. Multiple copies (up to a thousand) of [Nle4,D-Phe7]α-MSH, a superpotent analog of α-melanocyte stimulating hormone (α-MSH), were conjugated to a macromolecular carrier, large polyamide beads (macrospheres). Incubation in (the presence of the I conjugated macrospheres resulted in binding of human epidermal melanocytes to the macrospheres. Specificity of the binding of melanocytes of the melanotro-pin-conjugated macrospheres was demonstrated by several studies: (i) Binding of melanocytes to the conjugate was specific since it could be blocked by prior incubation of the cells in the presence of (the unconjugated hormone analog: (ii) The macrospheres after removal of the bound ligand did not bind to the melanocytes: (iii) Another peptide hormone ligand (e.g., a substance-P analog) attached to the macrospheres failed to bind to the melanocytes: (iv) BI6/F10 mouse melanoma cells known lo express melanotropin receptors bound to the macrospheres; (v) Cells of nomnelanocyte origin (e.g., mammary cancer cells, lung cancer cells, fibroblasts) did not bind lo the macrospheres. One exception was that human epidermal keratinocytes also expressed melanotropin receptors as determined by all the criteria established for epidermal melanocyles. Thus, cell specific melanotropin receptors appear to be characteristic cell surface markers of epidermal melanocytes and keratinocytes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0625.1997.tb00139.x
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  • 10
    Electronic Resource
    Electronic Resource
    Micropropagation of Dendrocalamus asper by shoot proliferation using seeds (1999)
    Springer
    Plant cell reports 18 (1999), S. 879-882 
    Details
    ISSN: 1432-203X
    Keywords: Key words Micropropagation ; Tissue culture ; Dendrocalamus asper ; Bamboo
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract An efficient and reproducible procedure for the large-scale propagation of Dendrocalamus asper is described. High-frequency direct shoot proliferation was induced in aseptic seed cultures of D. asper on modified Murashige and Skoog's (1962) medium supplemented with 1.0–10.0 mg/l benzyladenine (BA). Multiple shoots (1–25) were formed within 5 weeks of seed culture without root formation. The shoot-forming capacity of seeds was influenced by the BA concentration in the medium. Proliferating shoot cultures were established by repeatedly subculturing shoots in propagules of 3 shoots each. A multiplication rate of 15–16 fold was achieved on MS medium +3.0 mg/l BA. Roots were formed on excised propagules of 3–5 shoots when transferred to MS medium containing 10.0 mg/l indole-3-butyric acid (IBA) or 3.0 mg/l 1-naphthaleneacetic acid (NAA). Plantlets were hardened, acclimatized and established in soil, where they exhibited normal growth.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002990050678
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    Paper (German National Licenses)
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