Search Results - (Author, Cooperation:L. Sam)

Showing 1 - 20 results of 55, query time: 0.22s Refine Results
  1. 1
    Staff View
    Publication Date:
    2012-06-23
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Cell Proliferation ; Cells, Cultured ; Hepatocyte Nuclear Factor 3-alpha/genetics ; Humans ; Male ; Molecular Sequence Data ; Mutation ; Orchiectomy ; Prostatic Neoplasms/*genetics/pathology ; Receptors, Androgen/metabolism ; Sequence Alignment ; Signal Transduction
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Robinson, Sam L.

    College Park, Md. : American Institute of Physics (AIP)
    Published 1991
    Staff View
    ISSN:
    1089-7658
    Source:
    AIP Digital Archive
    Topics:
    Mathematics
    Physics
    Notes:
    An explicit integral representation is obtained in the Ε→0 limit of the solution of the wave equation utt=c(x)2Δu on Rn (n≤3) with initial data of the form u(x,0)=f(x)eiS(x)/Ε. Estimates are given with respect to the energy norm and the representation is valid for any finite time interval. Away from caustics, the integral is asymptotically evaluated and it is found that the solution is determined by time-dependent geometrical optics.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  3. 3
    Robinson, Sam L.

    College Park, Md. : American Institute of Physics (AIP)
    Published 1988
    Staff View
    ISSN:
    1089-7658
    Source:
    AIP Digital Archive
    Topics:
    Mathematics
    Physics
    Notes:
    The (h-dash-bar)→0 limit of the quantum dynamics determined by the Hamiltonian H((h-dash-bar)) =−((h-dash-bar)2/2m)Δ+V on L2(Rn) is studied for a large class of potentials. By convolving with certain Gaussian states, classically determined asymptotic behavior of the quantum evolution of states of compact support is obtained. For initial states of class C10 the error terms are shown to have L2 norms of order (h-dash-bar)1/2−ε for arbitrarily small positive ε.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  4. 4
    Robinson, Sam L.

    College Park, Md. : American Institute of Physics (AIP)
    Published 1993
    Staff View
    ISSN:
    1089-7658
    Source:
    AIP Digital Archive
    Topics:
    Mathematics
    Physics
    Notes:
    An explicit and computable asymptotic integral representation is obtained for the time-dependent Wigner distribution associated with the initial quantum state ψ(x,0)=f(x) eiS(x)/(h-dash-bar) in the semiclassical ((h-dash-bar)→0) limit. The approximations are valid to arbitrarily high order in (h-dash-bar) over any finite time interval. The leading order term is further analyzed to obtain a classically determined phase space function which is related to a classical probability density on phase space. The results hold for a large class of time-dependent potentials.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  5. 5
    Hansard, Sam L.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1963
    Staff View
    ISSN:
    1749-6632
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Natural Sciences in General
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13
  14. 14
  15. 15
  16. 16
  17. 17
  18. 18
  19. 19
  20. 20