La discrimination de formes. Application à l'étude de la diffusion élastique neutron-proton à 14,5 MeV

The decay of luminous pulses, produced in inorganic or organic scintillators by ionising particles, differs with the nature of the particles : the authors describe two procedures allowing the selection of pulses created by protons or α particles, in the presence of pulses due to a flux of γ rays.La décroissance des impulsions lumineuses produites dans des scintillateurs minéraux ou organiques par des particules ionisantes diffère selon la nature de ces particules : on décrit deux procédés qui permettent de choisir les impulsions dues à des protons ou celles dues aux particules α, en présence d'impulsions créées par un flux de rayons γ

Comparison of dietary intakes in four selected European populations.

The composition of diet and food intakes in four selected European populations were compared. Dietary data (from the World Health Organization Project on Monitoring Trends and Determinants in Cardiovascular Disease) were measured by record methods and were available for middle-aged men in Finland (n = 653), France (n = 1128), Northern Ireland (n = 356), and southern Germany (Augsburg region; n = 899). Nutritional variables - which are independent of the absolute energy intake, such as the percentage supply of energy from macronutrients and the ratio of polyunsaturated to saturated fatty acids - were on the whole similar. However, striking differences were found in food intake and in the percentage supply of fat from different foods. The results indicate that detailed knowledge of consumption figures is necessary to develop prudent and acceptable nutrition intervention programs