Biomedical subjects
Publications and source records attributed to A Popp.
9 helminth species were found in a young mallard by helminthological dissection of its alimentary tract. The severe pathological alterations in the gut were caused by Filicollis anatis. One female acanthocephalan had entered the pancreas with its proboscis via one of the efferent ducts and caused an inflammation.
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The vibrational degrees of freedom of room-temperature rhodopsin (RhRT), the central trans-membrane protein in vision, are measured at room temperature by picosecond resonance coherent anti-Stokes Raman scattering (PR/CARS). High signal-to-noise PR/CARS data for the ethylenic stretching, Schiff base, and hydrogen-out-of-plane modes of the retinal chromophore are quantitatively analyzed via third-order susceptibility relationships. The accurate determination of spectral features permit the PR/CARS bandshapes to be analyzed as a function of RhRT concentration, an essential factor in using picosecond time-resolved CARS techniques to measure the vibrational spectroscopy of picosecond intermediates in the RhRT photosequence. Of particular importance is the recognition that PR/CARS bandshapes are sensitive functions of both the chromophore concentration and the excitation wavelength, as measured relative to the absorption spectra of specific chromophores (static and transient).
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