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  • Springer  (20)
  • Institute of Physics  (10)
  • American Institute of Physics (AIP)  (5)
  • American Association for the Advancement of Science (AAAS)  (2)
  • EMBO Press
  • Geological Society of America (GSA)
  • 2010-2014
  • 2000-2004
  • 1995-1999
  • 1985-1989  (38)
  • 1950-1954
  • 1987  (19)
  • 1986  (19)
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  • 2010-2014
  • 2000-2004
  • 1995-1999
  • 1985-1989  (38)
  • 1950-1954
Year
  • 1
    Electronic Resource
    Electronic Resource
    Formation of silicides by rapid thermal annealing over polycrystalline silicon (1986)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 60 (1986), S. 631-634 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We have investigated the formation of titanium silicide by rapid thermal annealing in nitrogen and argon ambients over polycrystalline silicon. A sheet resistance of about 3 Ω per square for a 300-A(ring) Ti layer was achieved after 900 °C/10-s annealing treatment, which decreased to about 2 Ω per square after 1100 °C/10-s treatment. The silicides were found to be stable during rapid thermal annealing up to 1100 °C/10 s with no or negligible migration of titanium along the grain boundaries in polycrystalline silicon. An external layer (titanium rich, mixture of titanium oxide and nitride) was observed to form during rapid thermal annealing treatment in the nitrogen ambient, but the surface remained clean in the argon ambient.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.337404
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  • 2
    Electronic Resource
    Electronic Resource
    Population lifetimes of OH(v=1) and OD(v=1) stretching vibrations of alcohols and silanols in dilute solution (1986)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 85 (1986), S. 5004-5018 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Picosecond infrared pump–probe experiments determined the vibrational population lifetimes (T1) of the hydroxyl fundamental stretching mode OH(v=1) in 12 alcohols (R3COH) and 8 silanols (R3SiOH) in dilute room temperature CCl4 solutions. T1 for the silanols is in the range 185〈T1〈292 ps, while T1 for the alcohols is much less (T1〈80 ps). The deuterium-exchanged analogs (COD and SiOD) exhibit population relaxation times similar to protonated hydroxyls. An analysis of the vibrational energy levels corresponding to modes involving the four bonds nearest the hydroxyl groups of these molecules is used to qualitatively explain the trends of the observed T1 lifetimes for these systems. Solution T1 lifetimes are also compared to those previously measured for OH(v=1) on the surface of silica and in other condensed-phase, room temperature systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.451690
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  • 3
    Electronic Resource
    Electronic Resource
    Vibrational predissociation of the nitric oxide dimer: Total energy distribution in the fragments (1986)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 85 (1986), S. 2333-2334 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Rotational, spin-orbit, lambda doublet, and kinetic energy distributions were measured by laser-excited fluorescence techniques for the nitric oxide fragments formed from the vibrational predissociation of nitric oxide dimers in a free jet expansion. The NO fragments, produced following excitation in the dimer ν1 fundamental, were described by a rotational "temperature'' of TR(approximately-equal-to)100 K, with full equilibration of lambda doublet states, and approximately equal populations in the two spin-orbit states. The velocity distributions were isotropic with an average fragment kinetic energy of 400 cm−1. Time-resolved measurements placed a 15 ns upper limit on the predissociation lifetime.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.451082
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  • 4
    Electronic Resource
    Electronic Resource
    Time-resolved measurements of OH(v=1) vibrational relaxation on SiO2 surfaces: Isotope and temperature dependence (1986)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 84 (1986), S. 2361-2364 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Picosecond infrared spectroscopy was used to measure the vibrational energy relaxation time T1 of OH(v=1) and OD(v=1) groups chemisorbed on silica surfaces over the temperature range 100≤T≤800 K. The observed T1 times and their temperature dependencies are discussed in terms of a multiphonon relaxation mechanism. Limiting low temperature lifetimes are T1=220±20 ps (1σ) for OH(v=1) and T1=149±10 ps for OD(v=1).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.450350
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  • 5
    Electronic Resource
    Electronic Resource
    Picosecond measurements of the dissociation rates of the nitric oxide dimer v1=1 and v4=1 levels (1986)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 85 (1986), S. 6235-6237 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Direct picosecond measurements of the vibrational predissociation rates of the nitric oxide dimer excited to v=1 levels of the symmetric (ν1=1870 cm−1) and antisymmetric (ν4=1789 cm−1) N–O stretching fundamentals are reported. Lifetimes obtained are 880±260 ps for ν1 and 39±8 ps for ν4 excitations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.451494
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  • 6
    Electronic Resource
    Electronic Resource
    Erratum (1986)
    Springer
    Oecologia 69 (1986), S. 320-320 
    Details
    ISSN: 1432-1939
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00377641
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  • 7
    Electronic Resource
    Electronic Resource
    Duchenne muscular dystrophy due to familial Xp21 deletion detectable by DNA analysis and flow cytometry (1986)
    Springer
    Human genetics 〈Berlin〉 73 (1986), S. 175-180 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary We report two male cousins with Duchenne muscular dystrophy (DMD) in whom cytogenetic studies have shown a small interstitial deletion at Xp21. The lesion is readily detectable in patients and carriers by flow cytometry which indicates that approximately 6000 kb of DNA are deleted in each case. The DNA markers OTC, C7, and B24 are present in the deleted X chromosome but 87-8, 87-1, and 754 are absent. Despite apparently identical deletions one affected boy has profound mental handicap while the other is only mildly retarded. The results confirm the assignment of familial DMD to Xp21 and illustrate the value of flow cytometry in improving the precision of chromosome analysis. We have also undertaken flow cytometry in a cell line from a previously reported DMD patient with a de novo Xp21 deletion who had, in addition, chronic granulomatous disease, retinitis pigmentosa, and the McLeod syndrome. The results indicate that the amount of DNA deleted from the X is similar in both families despite the striking differences in phenotype.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00291610
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  • 8
    Electronic Resource
    Electronic Resource
    Use of tree aggregations in forest ecology and management (1987)
    Springer
    Environmental management 11 (1987), S. 1-5 
    Details
    ISSN: 1432-1009
    Keywords: Forest ecology ; Forest management ; Tree aggregations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Two recent studies using tree aggregations to analyze forest age-structure stability and past forest structure are flawed. A better understanding of aggregation dynamics is needed before aggregation analysis is used in forest management.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01867172
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  • 9
    Electronic Resource
    Electronic Resource
    Hydrothermal dissolution of perovskite (CaTiO3) (1987)
    Springer
    Journal of materials science 22 (1987), S. 3217-3226 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Perovskite (CaTiO3) has been exposed to hydrothermal chemical attack in aqueous solution. Dependences on temperature (150 to 250°C) and on duration of attack (1 to 35 days) have been investigated. It was found that a precipitate surface layer was formed. The thickness of this layer ranged from a few monolayers to several hundred nanometres for the least and the most severe hydrothermal conditions, respectively. The composition of the layer, as deduced by surface analytical techniques, suggests that (i) there is congruent dissolution of the perov skite surface, (ii) a TiO2 precipitate layer is formed, and (iii) the presence of silica and CO2 in solution do not appear to affect substantially the mechanism or the rate of dissolution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01161185
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  • 10
    Electronic Resource
    Electronic Resource
    Stereology and stereometry of endoplasmic reticulum during differentiation in the maize root cap (1986)
    Springer
    Protoplasma 131 (1986), S. 32-46 
    Details
    ISSN: 1615-6102
    Keywords: Endoplasmic reticulum ; Maize ; Root caps ; Stereology ; Stereo-pair ; Thick sections
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Changes in the abundance and form of endoplasmic reticulum in the three major cell types of the maize root cap were investigated by stereological and stereometric techniques. Quantification from thin sections was by the modification and application of standard morphometric procedures. This revealed dramatic increases in both the volume fraction and surface densities of endoplasmic reticulum as the meristem cells differentiate into starch and secretory cells. A stereometric technique for analysing thick sections was used to assess changes in the types of endoplasmic reticulum as cells differentiate through the root cap. This procedure showed that the proportions of cisternal endoplasmic reticulum to tubular endoplasmic reticulum was highest in the peripheral secretory cells. Electron opacity of the endomembrane system was enhanced by selective staining with zinc iodide and osmium tetroxide (ZIO).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01281685
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