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  • 1
    ISSN: 1434-601X
    Schlagwort(e): 25.55.−e
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Cross section measurements of thed(3He,p)4He reaction have been extended to an energy as low asE cm =5.4 keV. The data have an improved accuracy compared with previous work and confirm the existence of electron screening. The combined analysis of the present and previous data leads to an electron screening potential ofU e =123 ± 9 eV. A similar analysis of previous data for3He(d, p)4He leads toU e =186 ± 9 eV. Both screening potentials differ due to the molecular and atomic aggregate state of the targets involved in these investigations and are significantly larger than expected from available atomic physics models, supporting the general trend in studies of electron screening.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    ISSN: 1573-7284
    Schlagwort(e): Social classes ; Coronary heart disease ; Prevention ; Behaviour
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract A questionnaire concerning knowledge, motivation and behaviour connected with coronary heart disease (CHD) prevention was administered to 6074 men aged 46 yrs, residents of Rome. The aim of this analysis was to evaluate whether differences exsisted between three socio-economic (SE) classes arbitrarily defined as medium-high (MH), intermediate (I), and medium-low (ML). Knowledge on CHD and its prevention was more satisfactory in the MH class than in the ML class. The same was observed for attitudes toward prevention (the NM class demonstrated more attention to prevention than ML class). Data were less straightforward for behaviour, which seemed to be dependent on both economic status and education. In fact the MH class claimed to smoke less than ML class, to spend more leisure time in physical activity and to check blood pressure and serum cholesterol more often. Their diets, however, were more expensive and rich than those of the ML class. By contrast the ML class, when compared to MH class, seemed to drink more alcoholic beverages and to be heavier, but they walked more and their diet resembled more closely the Mediterranean one. Altogether, in this study population, the highest social class seemed to be associated with better behaviours toward CHD prevention.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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