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  • Geological Society of London  (22)
  • American Association of Petroleum Geologists (AAPG)
  • American Institute of Physics (AIP)
  • Amsterdam : Elsevier
  • Geological Society of America (GSA)
  • Nature Publishing Group
  • 2015-2019  (34)
  • 1965-1969  (7)
  • 1925-1929  (1)
Collection
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Observations on Chromocentres in Cultured Mouse Cells (1969)
    [s.l.] : Nature Publishing Group
    Nature 222 (1969), S. 1250-1253 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Counting and sizing of the chromocentres in mouse fibroblast-like cells is feasible. It has shown that, in spite of the great variations of chromocentres in a population of such cells, there are certain ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/2221250a0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Ability of Counterflow Systems to Concentrate (1965)
    [s.l.] : Nature Publishing Group
    Nature 206 (1965), S. 1215-1219 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN two recent papers1,2 Dr. G. G. Pinter and Dr. J. L. Shohet have discussed a model of the renal medulla. The central feature of this model is that even though the counter current multiplier action of Henle's loop is restricted to the thick segment of the ascending limb, that is to the outer zone ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/2061215a0
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  • 3
    Electronic Resource
    Electronic Resource
    Potassium Molybdenum Oxide ‘Bronzes’ (1965)
    [s.l.] : Nature Publishing Group
    Nature 206 (1965), S. 924-925 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The structures of these two phases, the erystallographie constants of which are given in Table 1, have now been determined and refined by three-dimensional Fourier and least-squares techniques by us. Both are layer structures containing sheets of irregular molybdenum-oxygen octa-hedra. The sheets, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/206924b0
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  • 4
    Electronic Resource
    Electronic Resource
    Potentiation by an Antagonist (1969)
    [s.l.] : Nature Publishing Group
    Nature 222 (1969), S. 790-791 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1. In each graph the ordinate ybdyb is the ratio of receptors occupied by agonist in the presence of both rapidly and slowly dissociating antagonists to those occupied by the agonist in the presence of only the slow antagonist. X, Y and Z represent the proportion of receptors occupied (in the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/222790a0
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  • 5
    Electronic Resource
    Electronic Resource
    Fossil Burrows on the Coast of Kenya (1965)
    [s.l.] : Nature Publishing Group
    Nature 207 (1965), S. 850-851 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The rock containing the burrows resembles the coquinas described by Thompson1. It is cream-coloured granular limestone which in thin section is seen to consist of fragments of shell, with some foraminifera and a few quartz grains, cemented together by calcite. In outcrop the bedding is picked out ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/207850a0
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  • 6
    Electronic Resource
    Electronic Resource
    Green Lightning (1927)
    [s.l.] : Nature Publishing Group
    Nature 120 (1927), S. 695-695 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DURING a thunderstorm last night, a flash of lightning started from the top white, and about half-way down turned to a vivid green. Possibly I am very unobservant, but I do not remember ever to have seen green lightning ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/120695e0
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  • 7
    Electronic Resource
    Electronic Resource
    Gravitational Deflexion of an Electromagnetic Wave (1966)
    [s.l.] : Nature Publishing Group
    Nature 209 (1966), S. 492-493 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The deflexion of a light beam as it passes the Sun is calculated on Newtonian theory as: 6=?^ av2 in astronomical units, where v is the velocity of the light corpuscles at infinity, M is the mass of the Sun, and a is the radial distance. For v = c = 1 this expression gives a deflexion equal to ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/209492a0
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  • 8
    Electronic Resource
    Electronic Resource
    Pentameral Symmetry in Echinoderms (1967)
    [s.l.] : Nature Publishing Group
    Nature 216 (1967), S. 994-994 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Nichols has looked for a reason for pentamerism in the life of modern echinoderms, but the evolution of echino-derms is a continuous process which has gone on since Pre-Cambrian times3. Once the pentameral condition had been established at some time in the past, in many members of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/216994a0
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  • 9
    facet.materialart.
    Unknown
    Electron mobility enhancement in (100) oxygen-inserted silicon channel (2015)
    American Institute of Physics (AIP)
    Details
    Publication Date: 2015-09-22
    Description: High performance improvement (+88% in peak G m and 〉30% in linear and saturation region drain currents) was observed for N-MOSFETs with Oxygen-Inserted (OI) Si channel. From TCAD analysis of the C-V measurement data, the improvement was confirmed to be due to electron mobility enhancement of the OI Si channel (+75% at N inv  = 4.0 × 10 12  cm −2 and +25% at N inv  = 8.0 × 10 12  cm −2 ). Raman and high-resolution Rutherford backscattering measurements confirmed that negligible strain is induced in the OI Si layer, and hence, it cannot be used to explain the origin of mobility improvement. Poisson-Schrödinger based quantum mechanical simulation was performed, taking into account phonon, surface roughness and Coulomb scatterings. The OI layer was modeled as a “quasi barrier” region with reference to the Si conduction band edge to confine inversion electrons. Simulation explains the measured electron mobility enhancement as the confinement effect of inversion electrons while the formation of an super-steep retrograde well doping profile in the channel (as a result of dopant diffusion blocking effect accompanied by introduction of the OI layer) also contributes 50%–60% of the mobility improvement.
    Print ISSN: 0003-6951
    Electronic ISSN: 1077-3118
    Topics: Physics
    Published by American Institute of Physics (AIP)
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  • 10
    facet.materialart.
    Unknown
    Band structure of germanium carbides for direct bandgap silicon photonics (2016)
    American Institute of Physics (AIP)
    Details
    Publication Date: 2016-08-06
    Description: Compact optical interconnects require efficient lasers and modulators compatible with silicon. Ab initio modeling of Ge 1−x C x (x = 0.78%) using density functional theory with HSE06 hybrid functionals predicts a splitting of the conduction band at Γ and a strongly direct bandgap, consistent with band anticrossing. Photoreflectance of Ge 0.998 C 0.002 shows a bandgap reduction supporting these results. Growth of Ge 0.998 C 0.002 using tetrakis(germyl)methane as the C source shows no signs of C-C bonds, C clusters, or extended defects, suggesting highly substitutional incorporation of C. Optical gain and modulation are predicted to rival III–V materials due to a larger electron population in the direct valley, reduced intervalley scattering, suppressed Auger recombination, and increased overlap integral for a stronger fundamental optical transition.
    Print ISSN: 0021-8979
    Electronic ISSN: 1089-7550
    Topics: Physics
    Published by American Institute of Physics (AIP)
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