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  • Electronic Resource  (9)
  • 1995-1999  (5)
  • 1990-1994  (4)
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  • Electronic Resource  (9)
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  • 1
    Electronic Resource
    Electronic Resource
    Structure of N-γ-L-glutamyl-L-cysteine ethyl ester monohydrate (1990)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 46 (1990), S. 2247-2249 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270190000774
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  • 2
    Electronic Resource
    Electronic Resource
    Resonance energies of meta-stable dtµ* (1996)
    Springer
    Hyperfine interactions 101-102 (1996), S. 319-324 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using the coupled rearrangement channel method, we have calculated resonance energies for meta-stable states of the molecular ion dtµ* associated with the adiabatic 3σ potential. The vacuum polarization effect was taken into account by direct inclusion of the Uehling potential in our three-body Hamiltonian. Comparing with the solution of the pure Coulombic Schrödinger equation a shift of approximately +0.1 eV is found. Thus the infinite series of states of the Coulombic Schrödinger equation becomes truncated. Eleven states remain semi-bound, five of them with binding energy smaller than the dissociation energy of the D2 molecule, facilitating formation of dtµ* in tµ(2s)-D2 scattering by means of the Vesman-mechanism.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02227638
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  • 3
    Electronic Resource
    Electronic Resource
    Muonic atom-nucleus collisions in the energy region of dtµ, resonant states (1996)
    Springer
    Hyperfine interactions 101-102 (1996), S. 191-196 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We calculated the (dµ) n=1 +t scattering in the energy region of the (dtµ)* resonant states below then=2 level of the tµ atom. From the cross sections, we estimated the resonant energies, widths and branching ratios. We found eleven resonant states with angular momentumJ=0, and some of their resonant energies relative to then=2 level of tµ are small enough to form the [(dtµ)* dee] by the Vesman mechanism. These resonant states decay to (dµ)[inn=1 +t or (tµ) n=1 + d scattering states. The total decay rates are about 1011 s−1 which is three orders of magnitude larger than the fusion rates of (dtµ)*→4 He + n+ 17.6 MeV + µ. The main part of the decaying channel from the shallow resonant states is the (dµ) n=1 +t channel. The branching ratios of the (dµ) n=1 +t decay channel are around 0.9. Most of the muons that reach to then=2 states of tµ can transfer to then=1 state of du through (tµ) n=2 + D2 → [(dtµ)*dee] and (dtµ)* → (dµ) n=1 +t processes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02227622
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    In vitro regulation of neutrophil migration by β2 integrins (LFA-1 and Mac-1) in patients with otitis media (1997)
    Springer
    European archives of oto-rhino-laryngology and head & neck 254 (1997), S. 150-152 
    Details
    ISSN: 1434-4726
    Keywords: β2 integrins ; Otitis media ; Neutrophil migration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract β2 integrins are located on the surface of neutrophils and have important roles in cell migration to an inflammatory site. We investigated the inhibitory effect of antibodies to the β2 integrin family for neutrophil migration into middle ear effusion (MEE) during acute otitis media in children and chronic otitis media with effusion in both children and adults. Neutrophil migration to MEE samples was assessed in vitro in a 48-well Boyden chamber. The migration index value and the activity of chemo-attractants in MEE was found to be proportional to the number of infiltrated cells. Migration of activated neutrophils into MEE was significantly inhibited by blocking surface-expressed cell adhesion molecules (CAM) with anti-CD11b (Mac-1α) and anti-CD18 (common β2 subunit) antibodies (P 〈 0.001) but not with anti-CD11a (LFA-1α) antibody. These inhibitory effects of anti-CAM antibodies were found in all types of MEE in all age groups studied. A new therapeutic approach to inflammation has been considered recently that utilizes inhibition of neutrophil migration with a blocking antibody to CAM. Our in vitro data support a possible therapeutic effect of anti-CAM antibody, indicating that administration of anti-CD11b and CD18 antibodies may be useful for treating human otitis media.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02471280
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  • 5
    Electronic Resource
    Electronic Resource
    Energy shift in (dtμ)e due to the finite size of the muonic molecular ion (dtμ)+ (1992)
    Springer
    The European physical journal 22 (1992), S. 635-640 
    Details
    ISSN: 1434-6079
    Keywords: 36.10.Dr. ; 31.20.−d
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The energy shift due to the presence of the extended (dtμ)11 pseudonucleus (in its first excited state with one unit of angular momentum) in the quasihydrogenlike system (dtμ)11 e 1s is estimated using perturbation theory up to second order with two choices of zeroth order electron wavefunctions. The energy shift is found to be 0.50 meV using pure Coulomb electron wavefunctions and 0.58 meV using electron wavefunctions calculated with a potential modified to take partial account of the finite size of (dtμ)11. In both cases, the perturbation Hamiltonian is expanded in multipoles, retaining terms up to and including octupole terms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01426365
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  • 6
    Electronic Resource
    Electronic Resource
    Asymptotic form of three-body (dtµ)+ and (ddµ)+ wave functions (1996)
    Springer
    Hyperfine interactions 101-102 (1996), S. 325-328 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In order to investigate a discrepancy between existing literature values for the normalization constant in the asymptotic form of three-body wave functions for (dtµ)+, we report the results of a new calculation of the normalization constants for this system as well as the related system (ddµ)+. These were obtained by fitting to accurate variational wave functions with special care being taken to describe the long-range behavior.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02227639
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  • 7
    Electronic Resource
    Electronic Resource
    New comprehensive calculation of muon initial sticking to 4He in dtμ fusion (1999)
    Springer
    Hyperfine interactions 118 (1999), S. 217-222 
    Details
    ISSN: 1572-9540
    Keywords: muonic molecule ; muon catalyzed fusion ; initial sticking
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The initial αμ sticking probability, $$\omega _S^0 $$ , is revisited by a new sophisticated calculation which does not assume the three approximations taken usually in the literature calculations. It is found that magnitude of $$\omega _S^0 $$ increases very slightly by the removal of the approximations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1012625712095
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  • 8
    Electronic Resource
    Electronic Resource
    Non-adiabatic calculation of muonic atom-nucleus collisions (1993)
    Springer
    Hyperfine interactions 82 (1993), S. 45-52 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In order to calculate the cross sections of the muonic atom-nucleus collisions, we have proposed a precise numerical method, a non-adiabatic coupled-rearrangement-channel method with the use of the Jacobian coordinates for the three-body system in the whole space. The scattering boundary condition is correctly imposed along the coordinates; this method does not suffer from the well known defects of the method of adiabatic representation. We applied our method to the muonic atom-nucleus collisions for an incident c.m. energies of 0.001–100 eV.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01027943
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Isotope dependence of particle-decay rates of muonic molecular ions (d3,4Heμ) J=1 below (dμ)1s-3,4He threshold (1993)
    Springer
    Hyperfine interactions 82 (1993), S. 195-204 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Rates of particle-emitting decay of the resonant state of the muonic molecular ion (dHeμ) J=1 lying below the (dμ)1s-He threshold can decay to the d-Heμ scattering state. The resonant state is estimated by scattering calculations with the non-adiabatic coupled-rearrangement-channel method. Strong isotope dependence of the decay rates of (d3Heμ) J=1 and (d4Heμ) J=1 is predicted, though the calculated radiative decay rates of the states are almost the same. In (d3Heμ) J=1, the particle decay width is three times larger than the radiative decay width, while the two types of decay widths are almost the same in (d4Heμ) J=1. This results in a strong hindrance of the branching ratio of the radiative decay of (d3Heμ) J=1 compared with the case of (d4Heμ) J=1. This is consistent with a recent observation of the radiative decay of the two molecular states.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01027960
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