39 research outputs found

    Multiparticle production in the model with antishadowing

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    We discuss the role of absorbtion and antishadowing in particle production. We reproduce power-like energy behavior of the mean multiplicity in the model with antishadowing and discuss physical implications of such behavior for the hadron structure.Comment: 11 pages, 3 figures, extended version of the talk at the XXXII International Symposium on Multiparticle Dynamics September 7-13, 2002 Alushta, Crimea, Ukrain

    Prevalence of and risk factors for binge eating behaviour in 6930 adults starting a weight loss or maintenance programme

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    Objective: Conflicting data are available on the prevalence of binge eating behaviour (BE) in individuals seeking to lose or maintain weight. The present study aimed to estimate the prevalence of and the risk factors for BE in a large sample of men and women starting a weight loss or maintenance programme. Design: Cross-sectional study. BE was defined as a Binge Eating Scale (BES) score 6518. The State-Trait Anxiety Inventory and the Italian Depression Questionnaire were used to assess anxiety and depression. Besides sex, age and BMI, marital status, educational level, smoking and physical activity were evaluated as potential risk factors for BE. Uni- and multivariable Poisson working regression models were used to estimate prevalence ratios (PR) and marginal probabilities. Setting: Nutritional research centre. Subjects: Adults (n 6930; 72 % women) with a median age of 46 years (range 18\u201381 years) were consecutively studied. Results: BE prevalence in the pooled sample was 17 %. At multivariable analysis, being a woman (PR=2\ub770), smoking (PR=1\ub715) and increasing BMI (PR=1\ub705 for 1 kg/m2 increase) were risk factors for BE. On the contrary, being older (PR=0\ub799 for 1-year increase), performing physical activity (PR=0\ub789) and being married (PR=0\ub788) were protective factors for BE. Anxiety and depression were more common in subjects with BE. Conclusions: BE is common in individuals seeking to lose or maintain weight. The prevalence of BE is higher in young obese women. However, BE is present also in men, elders and normal-weight subjects

    Scaling violations: Connections between elastic and inelastic hadron scattering in a geometrical approach

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    Starting from a short range expansion of the inelastic overlap function, capable of describing quite well the elastic pp and pˉp\bar{p}p scattering data, we obtain extensions to the inelastic channel, through unitarity and an impact parameter approach. Based on geometrical arguments we infer some characteristics of the elementary hadronic process and this allows an excellent description of the inclusive multiplicity distributions in pppp and pˉp\bar{p}p collisions. With this approach we quantitatively correlate the violations of both geometrical and KNO scaling in an analytical way. The physical picture from both channels is that the geometrical evolution of the hadronic constituents is principally reponsible for the energy dependence of the physical quantities rather than the dynamical (elementary) interaction itself.Comment: 16 pages, aps-revtex, 11 figure
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