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X-ray diffraction studies were made on lecithin/cholesterol multilayers with very high water content and containing the local anaesthetic procaine. Narrow-angle diffraction experiments show that the procaine molecules are located with the uncharged aromatic amine group approx. 10 A from the centre of the bilayer. The polar tertiary amine group of these… (More)
Hail precipitation is characterized by enhanced spatial and temporal variability. Association Nationale d'Etude et de Lutte contre les Fléaux Atmosphériques (ANELFA) installed hailpad networks in the Atlantic and Midi-Pyrénées regions of France. Historical data of hail variables from 1990 to 2010 were used to characterize variability. A total of 443… (More)
Small-angle x-ray and neutron diffraction patterns have been obtained from the annulus fibrosus of porcine intervertebral disk. These show that the collagen in this tissue is modified compared with that in tendon.