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  • 1
    Electronic Resource
    Electronic Resource
    Dwell-time related effects in focused ion beam synthesis of cobalt disilicide (2000)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 87 (2000), S. 57-62 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The influence of the high current density of a focused ion beam on the ion beam synthesis of CoSi2 layers has been investigated. After 35 keV Co+ or 70 keV Co2+ implantation into a heated Si(111) substrate and subsequent annealing, the layers have been investigated by scanning electron microscopy and Rutherford backscattering spectroscopy (RBS). It is shown that the mode of beam scanning influences the CoSi2 layer formation significantly. At a given substrate temperature, a sufficient low dwell time is required to obtain a continuous layer rather than a laterally disrupted structure. With increasing target temperature, the dwell-time window becomes less restricted. The results are discussed in terms of damaging and dynamic annealing of the silicon crystal. RBS channeling investigations demonstrate that continuous or disrupted CoSi2 layers are formed when the substrate remains crystalline or becomes amorphous, respectively. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.371826
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  • 2
    Electronic Resource
    Electronic Resource
    The nitrogen transport in austenitic stainless steel at moderate temperatures (2000)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 76 (2000), S. 2194-2196 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A model for the transport of nitrogen in austenitic stainless steel at temperatures around 400 °C is presented and discussed. The model considers the diffusion of nitrogen under the influence of trapping and detrapping at trap sites formed by local chromium. Nitrogen depth profiles simulated on the basis of the model with diffusion and detrapping activation energies of 1.1 and 1.45 eV, respectively, are in good agreement with experimental nitrogen profiles. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.126294
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  • 3
    Electronic Resource
    Electronic Resource
    Absorbance spectroscopy and identification of valence subband transitions in type-II InAs/GaSb superlattices (2000)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 76 (2000), S. 409-411 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We describe the molecular-beam epitaxy growth, as well as both the structural and optical characterization of a set of InAs/GaSb type-II strained-layer superlattice samples, in which the GaSb layer thickness is systematically increased. Absorbance spectroscopy measurements show well-defined features associated with transitions from the various valence subbands to the lowest conduction subband, and also a significant blueshift of the band edge when the GaSb layers thickness is increased. Empirical pseudopotential method calculations are shown to successfully predict the blueshift and help identify the higher-energy transitions. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.125770
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  • 4
    Electronic Resource
    Electronic Resource
    Mechanism of diffusional transport during ion nitriding of aluminum (2000)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 76 (2000), S. 1404-1406 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The mechanism of diffusional transport during low-energy ion nitriding of aluminum has been investigated using marker and isotope sequence techniques in connection with ion-beam analysis. For an ion energy of 1 keV and a temperature of 400 °C, it is shown that the nitride grows at the surface with aluminum being supplied by diffusion from the underlying bulk. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.126070
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  • 5
    Electronic Resource
    Electronic Resource
    Exhumation of the lower crust during crustal shortening: an Alice Springs (380 Ma) age for a prograde amphibolite facies shear zone in the Strangways Metamorphic Complex (central Australia) (2000)
    Oxford, UK : Blackwell Science Inc
    Journal of metamorphic geology 18 (2000), S. 0 
    Details
    ISSN: 1525-1314
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Foliated garnet-bearing amphibolites occur within the West Bore Shear Zone, cutting through granulite facies gneisses of the Strangways Metamorphic Complex. In the amphibolites, large euhedral garnet (up to 3 cm) occurs within fine-grained recrystallized leucocratic diffusion haloes of plagioclase–quartz. The garnet and their haloes include a well-developed vertical foliation, also present in the matrix. This foliation is the same as that cutting through the unconformably overlying Neoproterozoic Heavitree Quartzite. The textures indicate syn- to late kinematic growth of the amphibolite facies mineral assemblages.All mineral assemblages record an arrested prograde reaction history. Noteworthy is the growth of garnet at the expense of hornblende and plagioclase, and the breakdown of staurolite–hornblende to give plagioclase–gedrite. These dehydration reactions indicate increasing P–T  conditions during metamorphism, and suggest heating towards the end of a period of intense deformation. Temperature estimates for the garnet–amphibolite and related staurolite–hornblende assemblages from the shear zone are about 600 °C. Pressure is estimated at about 5 kbar.An Sm–Nd isochron gives an age of 381±7 Ma for the peak metamorphism and associated deformation. This age determination confirms that amphibolite facies conditions prevailed during shear zone development within the Strangways Metamorphic Complex during the Alice Springs Orogeny. These temperature conditions are significantly higher than those expected at this depth assuming a normal geothermal gradient. The Alice Springs Orogeny was associated with significant crustal thickening, allowing exhumation of the granulite facies, Palaeoproterozoic, lower crust. Along-strike variations of the tectonic style suggest a larger amount of crustal shortening in the eastern part of the Alice Springs Orogeny.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1525-1314.2000.00289.x
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  • 6
    Electronic Resource
    Electronic Resource
    Quality management in German health care - the EFQM Excellence Model (2000)
    Bingley : Emerald
    International journal of health care quality assurance 13 (2000), S. 254-258 
    Details
    ISSN: 0952-6862
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Medicine , Economics
    Notes: A brief insight into the issues affecting German health care is given. Namely, upward pressure on costs leads to increasing expenditure within health care and downward pressure from economic recession and political unwillingness to increase taxes and budget spending. In the case of competing key stakeholder perspectives, a quality management framework is seen as a potential approach for addressing these issues. The framework is the European Foundation for Quality Management (EFQM) Excellence Model. The article briefly explains the pilot phase for utilising the EFQM Excellence Model within German health care organisations and the various implementation approaches recommended by EFQM. Specific details of an approach used by a health care organisation within Germany (providing social medicine, geriatric and elderly services) are described in detail. The benefits achieved from using the Model are a clear picture of where the gaps are in the organisation and a clear vision for concentrating future efforts towards total quality management.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/09526860010373226
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  • 7
    Electronic Resource
    Electronic Resource
    Synthesis of Optically Active α-Methyl β-Hydroperoxy Esters by Diastereoselective Singlet Oxygen Ene Reaction and Horseradish Peroxidase Catalyzed Kinetic Resolution (2000)
    Springer
    Monatshefte für Chemie 131 (2000), S. 697-705 
    Details
    ISSN: 1434-4475
    Keywords: Keywords. γ ; δ-Unsaturated β-hydroperoxy esters; Horseradish peroxidase; Kinetic resolution; Schenck ene reaction; Singlet oxygen.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary.  Optically active diastereomeric β-hydroperoxy esters 4 have been prepared by singlet oxygen ene reaction of β,γ-unsaturated esters 3 and subsequent horseradish peroxidase (HRP) catalyzed kinetic resolution of the ene product. The highest enantiomeric excess (up to 95%) has been obtained for the isopropyl ester threo-4c, which establishes that the size of the remote ester functionality exercises appreciable control in the enantioselectivity of the enzymatic kinetic resolution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007060070098
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  • 8
    Electronic Resource
    Electronic Resource
    Beautiful exit: how to leave your business partner (2000)
    Bradford : Emerald
    European journal of marketing 34 (2000), S. 1270-1290 
    Details
    ISSN: 0309-0566
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Economics
    Notes: Interorganisational buyer-seller relationships have been primarily studied from the perspective of relationship development and the benefits accrued from relationships. There is a lack of research concerning problems with relationships and relationship dissolution. The dissolution of a business relationship can be either desirable, freeing badly deployed resources, as indicated by the customer portfolio approach, or harmful, involving costly legal disputes and the loss of company reputation. By employing a theory-driven case study approach we examine the exit strategies available for the disengager in dissolving interorganisational buyer-seller relationships. We show that the quality of dissolution is affected by the disengager's choice of exit strategy. Managerial suggestions are provided for achieving "beautiful exits", i.e. such communication strategies which minimise damages of the dissolution to the disengager, the other party, and the connected business network.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/03090560010348434
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  • 9
    Electronic Resource
    Electronic Resource
    On the essential spectrum of the linearized Navier-Stokes operator (2000)
    Springer
    Integral equations and operator theory 38 (2000), S. 9-27 
    Details
    ISSN: 1420-8989
    Keywords: Primary 35G15 ; 35P05 ; 35Q30 ; Secondary 35E99 ; 35J45 ; 47F05
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract We determine the essential spectrum of the linearized Navier-Stokes operator with physical boundary conditions. In contrast to other approaches we do not make use of pseudo-differential operators. We establish a direct proof using only some fundamental results for matrix operators.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01192299
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  • 10
    Electronic Resource
    Electronic Resource
    YidC mediates membrane protein insertion in bacteria (2000)
    [s.l.] : Macmillian Magazines Ltd.
    Nature 406 (2000), S. 637-641 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The basic machinery for the translocation of proteins into or across membranes is remarkably conserved from Escherichia coli to humans. In eukaryotes, proteins are inserted into the endoplasmic reticulum using the signal recognition particle (SRP) and the SRP receptor, as well as the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/35020586
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