Biomedical subjects
Publications and source records attributed to M Minicucci.
EXAFS (Extended X-ray Absorption Fine Structure) spectra of liquid gallium near the Ga K-edge have been collected in wide pressure and temperature ranges. Reliable short-range pair distribution functions have been determined using advanced ab-initio calculations (GNXAS) taking into account the medium and long-range structure obtained by previous neutron and x-ray-scattering studies.
Investigation of the local structure of the high-temperature liquid and solid phases in the 300-725 K range of AgBr has been performed using the x-ray absorption spectroscopy (XAS). Structural results are compared with existing diffraction studies and computer simulations demonstrating the reliability of the XAS technique in determining the short-range structure. Present results on solid AgBr are in agreement with known thermal expansion data. The short-range g(r) of liquid AgBr is reconstructed showing the unique insight provided by the XAS technique in measuring short-range atom-atom correlations in liquids.
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A total of 58 patients (116 eyes) with angioid streaks, referred to this department over 2 years (1990-1992), underwent a thorough ophthalmic examination, retinal fluorescein angiography, dermatological visit with skin biopsy, and a series of other examinations (blood and biochemistry, skull X-ray, vascular echo Doppler, abdominal ultrasound) and eye ultrasonography. Fifty patients (100 eyes, 86.2%) had pseudoxanthoma elasticum (PXE). In the whole caselist, 21.6% had drusen compared with 21.0% in the group with PXE. Both these findings are higher than those published elsewhere. Drusen of the optic nerve head were also found in 25% of the 16 eyes (8 patients) with angioid streaks but no PXE. We believe we found a higher prevalence of drusen of the optic nerve head in these patients with angioid streaks because we systematically employed ultrasound.