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  • 1
    Electronic Resource
    Electronic Resource
    Magnetic anisotropy and structural characterization of Co/Pt superlattices grown along selected orientations by molecular-beam epitaxy : 35th annual conference on magentism and magnetic materials San Diego, California (USA) 29 Oct − 1 Nov 1990 (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 5646-5648 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In this paper we report the molecular-beam epitaxial growth of Co/Pt superlattices on epitaxial Ag films on GaAs substrates. The growth axis of the superlattice was selected by seeded epitaxy to be along either the [001], [110], or [111] axis of Pt. The magnetic properties of the superlattices depend on the orientation of the growth axis. In situ x-ray photoelectron diffraction studies of the Co-Pt interfaces during their formation reveals that they are not atomically abrupt for any of the orientations. We conclude that models for magnetic anisotropy of Co/Pt superlattices should be based on a combination of magnetocrystalline anisotropy and strain in compositionally mixed interfaces.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.347923
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  • 2
    Electronic Resource
    Electronic Resource
    The structure and dynamics of solid benzene. I. A neutron powder diffraction study of deuterated benzene from 4 K to the melting point (1993)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 98 (1993), S. 8236-8243 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The crystal structure of deuterated benzene has been investigated over the complete temperature range 4–280 K. Our results are in excellent agreement with previous studies, recorded at a limited number of temperatures, and display a smooth variation of the lattice parameters over the complete temperature range. No evidence of the suggested low-temperature phase transitions, or marked premelting effects have been found. Detailed measurements of the lattice parameters close to the melting point display an anomalous behavior of the b lattice parameter and the orientation of the molecules which is believed to be evidence of a disordering transition at temperatures above the melting point.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.464528
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  • 3
    Electronic Resource
    Electronic Resource
    Partial melting during tectonic exhumation of a granulite terrane: an example from the Larsemann Hills, East Antarctica (1997)
    Oxford, UK : Blackwell Science Ltd.
    Journal of metamorphic geology 15 (1997), S. 0 
    Details
    ISSN: 1525-1314
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Anatectic migmatites in medium- to low-pressure granulite facies metasediments exposed in the Larsemann Hills, East Antarctica, contain leucosomes with abundant quartz and plagioclase and minor interstitial K-feldspar, and assemblages of garnet–cordierite–spinel–ilmenite–sillimanite. Qualitative modelling in the system K2O–FeO–MgO–Al2O3–SiO2–H2O–TiO2–O2, in conjunction with various P–T  calculations indicate that the high-grade retrograde evolution of the terrane was dominated by decompression from peak conditions of c. 7 kbar at c. 800 °C to 4–5 kbar at c. 750 °C. Extensive partial melting during decompression involved the replacement of biotite by the assemblage cordierite–garnet–spinel within the leucosomes. These leucosomes represent the site of partial melt generation, the cordierite–garnet–spinel–ilmenite assemblage representing the solid products and excess reactants from the melting reaction. The extraction and accumulation of this decompression-generated melt led to the formation of syntectonic pegmatites and extensive granitic plutons. Leucosome development and terrane decompression proceeded during crustal transpression, synchronous with upper crustal extension, during a progressive Early Palaeozoic collisional event. Subsequent retrograde evolution was characterized by cooling, as indicated by the growth of biotite replacing spinel and garnet, thin mantles of cordierite replacing spinel and quartz within metapelites, and garnet replacing orthopyroxene and hornblende within metabasites. P–T calculations on late mylonites indicate lower grade conditions of formation of c. 3.5 kbar at c. 650 °C, consistent with the development of late cooling textures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1525-1314.1997.00059.x
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of 6-Hydroxydopamine Lesions of the Medial Prefrontal Cortex on Neurotransmitter Systems in Subcortical Sites in the Rat (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 34 (1980), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: The effect of lesions of the catecholamine nerve terminals in the medial prefrontal cortex of the rat on neurotransmitter mechanisms within the basal ganglia has been investigated. Bilateral 6-hydroxydopamine lesions were stereotaxically placed in the dopamine-rich (DA) area of the frontal cortex. Animals were pretreated with desmethylimipramine to block the uptake of neurotoxin into noradrenergic (NA) terminals and to make it more selective for DA terminals. The lesion produced a selective reduction of both NA and DA from the medial prefrontal cortex, a result related to falls in tyrosine hydroxylase activity at this site. Lesioned animals showed enhanced DA turnover and utilisation in striatal and limbic regions. There was no change in subcortical tyrosine hydroxylase activity. In addition there were significant falls in other putative neurotransmitters within basal ganglia sites, including 5-hydroxytryptamine and GABA. Decreased activity of the neurotransmitter-synthesizing enzymes glutamate decarboxylase and choline acetyltransferase was also recorded in certain regions of the basal ganglia. The results suggest that frontal cortical catecholamine systems may serve to regulate various neurotransmitter mechanisms in the basal ganglia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1980.tb04625.x
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  • 5
    Electronic Resource
    Electronic Resource
    A nonmechanical laser scanner based on electron-beam pumped AlGaInP-GaInP semiconductor structures (1994)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 65 (1994), S. 1492-1494 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: An AlGaInP-GaInP strained-layer quantum well laser structure emitting at 670 nm is pumped by a 7–20 keV scanning electron beam. At room temperature, a threshold power density as low as 57 W/mm2 is obtained, which is only 3.8× the value for diode laser operation. More than 250 points are resolved on a 5 mm bar. They are scanned at a speed of 1000 m/s at an output level of 20 mW.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.112022
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  • 6
    Electronic Resource
    Electronic Resource
    Determination of residual stress in Cr-implanted Al2O3 by glancing angle x-ray diffraction (1992)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 60 (1992), S. 2216-2218 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report x-ray diffraction measurements of residual stress in sapphire crystals implanted with Cr+ ions. Stress is determined by measuring both in-plane and out-of-plane lattice constants. Bragg peak positions are measured to determine average stress, while peak widths are measured to determine its variation. Using angles of incidence close to the critical angle for total external reflection of x rays, we compare measurements confined to within ∼2.5 nm of the surface and measurements over the ∼80 nm thickness of the implanted region. These x-ray residual stress determinations are consistent with those based on indentation crack length, but were less by a factor of 10 than reports based on cantilever bending.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.107060
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  • 7
    Electronic Resource
    Electronic Resource
    The socioeconomic consequences of sports injuries in Randers, Denmark (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of medicine & science in sports 1 (1991), S. 0 
    Details
    ISSN: 1600-0838
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Sports Science
    Notes: Prospective epidemiologic data on all sports injuries were collected in a casualty ward for 1 year in a well defined geographical area with 124,321 inhabitants. A total of 1839 sports injuries were registered; 1535 (83%) of those injured completed questionnaires covering the sports, economic and social consequences of the sports injury. The incidence of sports injury was 61 per 1000 active sports players per year and 15 per 1000 inhabitants in the catchment population per year. The injuries resulted in an average sick leave from work of 3 d and 4 weeks out of competition and training; 16% had chronic health problems 2 years after injury and, unexpectedly, as many as 7% stopped participating in sports. The total net loss of income was DKK 147,900 (USD 23,000), an average of DKK 1781 (USD 270) for each person who had a financial loss. Abbreviated Injury Scale scores, hospitalization rates and inpatient time were correlated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0838.1991.tb00299.x
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  • 8
    Electronic Resource
    Electronic Resource
    Failure and Success in Abolition of Virus-Specific CTL-Response Defects by Dendritic Cells (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 532 (1988), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1988.tb36359.x
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  • 9
    Electronic Resource
    Electronic Resource
    Stopping and thermalization of interpenetrating plasma streams (1991)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 3 (1991), S. 3-12 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The interpenetration of two supersonically moving plasmas is affected by both collective modes of oscillation and Coulomb collisions. Two potentially important plasma instabilities, an electrostatic ion two stream and an electromagnetic ion Weibel, are considered and shown to be stabilized if only a small fraction of ion kinetic energy is converted to heat. For low-density, highly supersonic flows, the mean free path for slowing down (dominated in most cases of interest by ion–ion collisions) can be larger than or comparable to the system size. To develop an understanding of these plasmas, a unique hydrodynamic model has been developed that allows interpenetration but explicitly converts kinetic energy into heat as the ions slow down. The model is applied to the collision of two plasmas created by heating two parallel foils.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.859954
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  • 10
    Electronic Resource
    Electronic Resource
    Relationships between hard-seededness and seed weight in mungbean (Vigna radiata) assessed by QTL analysis (2005)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 124 (2005), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Weather damage reduces the value of commercial mungbean. but hard-seededness can reduce the level of damage. However. attempts lo breed large- and hard-seeded mungbean varieties have been unsuccessful. To understand the relationship between seed weight and hard-seededness. these trails were investigated using a quantitative trail loci (QTL) mapping approach with a recombinant inbred population derived from a cross between a completely soft-seeded variety and a completely hard-seeded genotype. The two parental genotypes also had a sixfold difference in seed weight. QTL analyses revealed four loci for hard-seededness and 11 loci for seed weight. Two of the hard-seeded ness loci co-localized with seed weight QTL. When seed weight was used as a covariate in the analysis of hard-seededness from the field data, two of the four hard-seeded QTL remained significant with the effect al one of these remaining unchanged. These results explain why retaining hard-seededness in large seeded mungbean lines has been unsuccessful. The existence of a persistent locus, however. indicated that breeding large and persistently hard-seeded varieties of mungbean may be possible.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.2005.01084.x
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