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  • 1
    Electronic Resource
    Electronic Resource
    Nonlinear geostrophic adjustment, cyclone/anticyclone asymmetry, and potential vorticity rearrangement (2000)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 12 (2000), S. 1087-1100 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Within the context of the rotating shallow water equations, it is shown how initially unbalanced states possessing certain symmetries dynamically evolve to lose those symmetries during nonlinear geostrophic adjustment. Using conservation law methods, it is demonstrated that the adjustment of equal and opposite (circular) mass imbalances results in a balanced end state where cyclones are stronger than anticyclones; the reverse holds true for momentum imbalances. In both cases, the degree of this asymmetry is shown to be directly proportional to the amount of initial imbalance (a measure of the nonlinearity occurring during time-dependent adjustment). On the other hand, the degree of asymmetry is maximal for imbalances of Rossby deformation scale. As for the potential vorticity, it is shown that its final profile can be noticeably different from its initial one; from an Eulerian perspective, this rearrangement is not confined to uniform shifts of potential vorticity fronts. Direct 2D numerical initial value problems confirm the asymmetry in the predicted final states and establish a relatively fast time scale for adjustment to complete. The robustness of these results is confirmed by studying, in addition, the adjustment of elliptical mass imbalances. The numerical integrations reveal that, during geostrophic adjustment, potential vorticity rearrangement occurs irreversibly on a fast wave time scale. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.870363
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  • 2
    Electronic Resource
    Electronic Resource
    Inhomogeneous broadening in quantum dots with ternary aluminum alloys (2001)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 79 (2001), S. 2701-2703 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We study how the optical properties of InAs self-assembled quantum dots (QDs) grown on GaAs substrate are affected when using AlGaAs barriers to increase the carrier confinement. The inhomogeneous broadening of the QD ensemble is found to increase when ternary aluminum alloys are used next to or within the QDs. By growing thin GaAs spacers to separate the QDs from the AlGaAs barriers, we obtain QD ensembles which exhibit little photoluminescence quenching and well-defined excited states up to room temperature. Postgrowth rapid thermal annealing is then used to intermix these InAs/GaAs/AlGaAs QDs and diffuse the Al towards the QDs. In contrast with QDs having thick binary GaAs barriers, the inhomogeneous broadening of QDs with nearby AlGaAs barriers is not decreased with intermixing, leading to unresolved excited state peaks when the interdiffusion length becomes comparable to the GaAs spacer thickness. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1410333
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  • 3
    Electronic Resource
    Electronic Resource
    Laser-induced InAs/GaAs quantum dot intermixing (2000)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 77 (2000), S. 3583-3585 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Laser annealing of InAs/GaAs quantum-dot (QD) microstructures has been investigated for selective area tuning of their electronic shell structure. Extensive blueshifts of the QD excited states were observed following 20–40 s laser irradiation. In the most extreme case, we were able to shift the position of the ground state transition by 298 meV, i.e., to the spectral region where the photoluminescence signal originates from the as-grown InAs wetting layer. A reduction from ∼50 to 8 meV of the full width at half maximum of the PL peak corresponding to this transition indicates a drastic change in the structural characteristics of the investigated QD ensemble. The attractive feature of the laser-QD-intermixing technique is that it offers the possibility of obtaining targeted blueshifts and inter-sublevel energy spacing on the lateral scale required in the fabrication of QD-based integrated optoelectronic devices and, possibly, photonic band gap crystals. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1323997
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  • 4
    Electronic Resource
    Electronic Resource
    Walters, Kerry S.: Benjamin Franklin and His Gods : Urbana, Ill., University of Illinois Press, 1999 (2000)
    New York : Cambridge University Press
    Church history 69 (2000), S. 216-218 
    Details
    ISSN: 0009-6407
    Source: Cambridge Journals Digital Archives
    Topics: History , Theology and Religious Studies
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.2307/3170627
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  • 5
    Electronic Resource
    Electronic Resource
    Plasticized sulfur asphalt replacements (1982)
    s.l. : American Chemical Society
    Industrial and engineering chemistry 21 (1982), S. 76-79 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/i300005a016
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  • 6
    Electronic Resource
    Electronic Resource
    Coordination and coupling of alkylidene groups on a triosmium cluster framework. Crystal structure of Os3(CO)10(.mu.-CO)(.mu.-CHSiMe3) (1981)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 103 (1981), S. 6975-6977 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00413a041
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  • 7
    Electronic Resource
    Electronic Resource
    Elemental Analysis in Murine Central Nervous System: Elevation of Rubidium Subsequent to Newcastle Disease Virus Encephalopathy (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 41 (1983), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: The Cg strain of Newcastle disease virus (NDV) produces neurologic signs and death in mice. This illness is unusual because of the lack of typical features of a viral encephalitis. Specifically, there is a paucity of infectious virus, detectable cellular inflammatory reaction, cytopathic effect, and viral antigen by immunofluorescence. We previously showed an elevation of α-aminoisobutyric acid in the CNS of moribund NDV-infected mice, indicating cellular membrane dysfunction. In an attempt to further our understanding of the pathogenesis of the illness, we evaluated CNS concentrations of sodium, potassium, iron, copper, zinc, magnesium, selenium, and rubidium. Elemental analysis revealed no difference between infected and control mice for all elements except for rubidium, which was significantly elevated in infected mice. Elevation in rubidium was detected in infected mice by X-ray fluorescence and atomic absorption spectrophotometry, whereas rubidium concentrations for control mice were similar by both methods. Neurologic symptoms correlated directly with rising rubidium concentrations. Our data suggest that abnormal trace element levels during viral infection may be one mechanism responsible for the clinical symptoms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1983.tb09044.x
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  • 8
    Electronic Resource
    Electronic Resource
    Studies on the Subunits Involved in the Interaction of Soybean 11S Protein and Myosin (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 47 (1982), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Protein-protein interaction between soybean 11S protein and myosin in a buffer system was studied using gel filtration chromatography and electrophoresis after incubating the single or combined proteins at temperatures between 4°C and 100°C. The elution profiles of 11S protein and myosin indicated that interaction between these two proteins occurred only at temperatures between 85° C and 100°C. The degree of interaction increased as temperature increased from 85 to 100°C. The interaction was not between native soy 11S and myosin, but between partially dissociated soy 11S (intermediary subunits, IS) or fully dissociated soy 11S (basic subunits) and myosin heavy chains. The rate of interaction was proposed as being more rapid between myosin and the basic subunits than between myosin and IS.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1982.tb12927.x
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  • 9
    Electronic Resource
    Electronic Resource
    AUSTRALIAN ABORIGINES AND PSORIASIS (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Australasian journal of dermatology 25 (1984), S. 0 
    Details
    ISSN: 1440-0960
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Psoriasis among full-blood Australian Aborigines appears to be rare or absent. After examination of some three thousand of these people in central, northern, and southern Australia, I have not seen psoriasis. Other medical and nursing observers have also not seen psoriasis in these people. Two references in the literature to psoriasis in Abotigines are reviewed briegly. The author has seen only one, male, part-Aborigine (more Causcasian than Aborigine), with in a female Aborigine whose father was said to be “not tribal”. A third was recently reported to me.Other conditions common among Aborigines, which should not be confused with psoriasis, are outlined, Certain aspects of the apparent absence of psoriasis in full-blood Australian Aborigines are discussed.Previous research about the essential causes of psoriasis has not been particularly rewarding. An important question must, therefore, be asked. Should some research projects in future be directed to reasons why some human groups seem not to get psoriasis rather than to why others do?
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1440-0960.1984.tb00618.x
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  • 10
    Electronic Resource
    Electronic Resource
    Obituary (2003)
    Oxford, UK : Blackwell Science Pty
    Australasian journal of dermatology 44 (2003), S. 0 
    Details
    ISSN: 1440-0960
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1440-0960.2003.00021.x
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