9 research outputs found

    Some information from nucleon-antinucleon annihilation at rest: e+e- annihilation, hadronic fragmentation, and deep inelastic scattering structure function

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    The experimental spectra of charged pions in NN annihilation at rest are described in a model of quasi-two-body decays. The same model predicts the pi /sup 0/, s, rho 's and omega 's spectra. These calculations are used to determine, in the vector dominance model, the pion spectra in the e/sup +/e/sup -/ annihilation at the same energy. The NN system is then used as a heavy hadron in order to describe, in a model-independent way: the projectile fragmentation part in inclusive reactions; the valence part of the deep inelastic structure function. (0 refs)

    Реакция e+e− → 3γ в окрестности ψ и ψ′

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    Effect of 5 years of imaging and CEA follow-up to detect recurrence of colorectal cancer - PRODIGE 13 a FFCD and Unicancer phase III trial: baseline characteristics

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    International audienceBackground: PRODIGE 13 is a cooperative prospective multicentre controlled phase III trial evaluating by double randomisation the impact of intensive radiological monitoring versus a standard one and CEA monitoring versus no monitoring in Stage II or III colorectal cancer. This abstract describes patient's baseline characteristics.Methods: Recommendations for colorectal cancer, according to various scientific societies have been based on heterogeneous clinical trials, and indeed mainly on expert opinions. Differences still exist particularly concerning the imaging techniques used. The CEA dosage is also poorly evaluated. Despite their limits, recent trials suggest that survival is increased thanks to clinical monitoring combined with hepatic and pulmonary imaging and possibly CEA assay. PRODIGE 13 is a large randomised trial of monitoring strategy and will evaluate the strategies to..
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