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A curve-crossing model for He*(23S)+Ne collisions consistent with differential and total scattering cross sections, and quenching rate constants (1989)

Fukuyama, T. ; Siska, P. E.

College Park, Md. : American Institute of Physics (AIP)

The Journal of Chemical Physics 90 (1989), S. 7118-7126

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ISSN: 1089-7690

Source: AIP Digital Archive

Topics: Physics , Chemistry and Pharmacology

Notes: He*(23S)+Ne differential elastic scattering measurements in crossed supersonic beams over the energy range 0.6–2.8 kcal/mol are combined with total cross section velocity dependence and quenching rate constant temperature dependence to determine a 3×3 potential matrix characterizing a double curve-crossing model for the collision dynamics and energy transfer. The coupled radial Schrödinger equations are integrated numerically to yield the appropriate cross sections. At low energy (E〈4 kcal/mol) a mixed adiabatic/diabatic two-state model derived from the potential matrix accurately represents the data. Dynamics in the three-state model, which is topologically similar to non-adiabatic coupling involving charge transfer, is discussed, and the bearing of the model on collisional pumping of the HeNe 1.1 μ laser is assessed.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.456241

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Subcutaneous transposition of the spleen enhances the survival rate following 90% hepatectomy in rats (1989)

Koga, A. ; Fukuyama, T. ; Momii, S.

Springer

Cellular and molecular life sciences 45 (1989), S. 457-459

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ISSN: 1420-9071

Keywords: 90% hepatectomy ; spleen transposition ; portal congestion ; portal-systemic shunt ; hepatic failure

Source: Springer Online Journal Archives 1860-2000

Topics: Biology , Medicine

Notes: Summary The effects of subcutaneous transposition of the spleen (STS) on the survival rate following 90% hepatectomy were investigated in rats. The survival rate was significantly higher in the STS group than in the non-STS group. Light microscopy enabled us to note that congestion in the terminal portal veins and sinusoids occurred either slightly earlier or to a higher degree in the non-STS group.