Articles you may be interested inPhotodissociation of HI and DI: Testing models for electronic structure via polarization of atomic photofragments Electron attachment on HI and DI in a uniform supersonic flow: Thermalization of the electrons Potential curves, nonadiabatic couplings, and transition dipoles of the first four (3n I' 1 Ii 1,3n o , and 3l: I) excited electronic states of HI are extracted from various photodissociation experiments of HI in the near UV. Excellent agreement with these experiments regarding the overall absorption spectrum, the l*ep'/2)/lep3/2) branching ratio, and the {J anisotropies of the two channels at various wavelengths, has been achieved. On the basis of the electronic parameters thus extracted, the full dynamics of the HI photodissociation at all excitation energies in the near UV have been unravelled. The data obtained for HI is used to predict the photodissociation dynamics of 01. These predictions are in good agreement with available experimental results. Subsequent work will deal with prediction of the resonance Raman scattering ofHI/D1 and the control of the l*ep ,/2 )/lep3/2) branching ratio by elliptical control using the Asaro-Brumer-Shapiro scheme.

Experiments and theory of the excitation-frequency dependence of the continuum-Raman signal of IBr are described. The theoretical computations, which do not follow the Kramas–Heisenberg expression, are extremely successful in predicting the wavelength dependence of each Stokes line and the ratio between the different overtones. The ‘‘reflection principle’’ or ‘‘photofragmentation mapping’’ of absorption spectroscopy, which postulates the equivalence between the topology of an initial vibrational wave function and the frequency dependence of the cross section, is shown to hold also for continuum-Raman spectroscopy. Our experimental excitation–emission spectra for the low-lying overtones of IBr are a clear reflection of the final nuclear density. In contrast, we show that the excitation-frequency dependence of the high overtones is mainly sensitive to the shape of the intermediate excited electronic states.

Prophylactic administration of oral amphotericin B may lead to a significant decrease in the rate of Candida bloodstream infection in ventilated pediatric intensive care unit patients.

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