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Sökning: WFRF:(Bartsch T.) > (2005-2009)

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1.
  • Aaron, F. D., et al. (författare)
  • Multi-leptons with high transverse momentum at HERA
  • 2009
  • Ingår i: Journal of High Energy Physics. - : Springer Science and Business Media LLC. - 1029-8479. ; :10
  • Tidskriftsartikel (refereegranskat)abstract
    • Events with at least two high transverse momentum leptons (electrons or muons) are studied using the H1 and ZEUS detectors at HERA with an integrated luminosity of 0.94 fb(-1). The observed numbers of events are in general agreement with the Standard Model predictions. Seven di- and tri-lepton events are observed in e(+)p collision data with a scalar sum of the lepton transverse momenta above 100 GeV while 1.94 +/- 0.17 events are expected. Such events are not observed in e(-)p collisions for which 1.19 +/- 0.12 are predicted. Total visible and differential di-electron and di-muon photoproduction cross sections are extracted in a restricted phase space dominated by photon-photon collisions.
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3.
  • Decramer, M, et al. (författare)
  • Effect of treatments on the progression of COPD: report of a workshop held in Leuven, 11-12 March 2004
  • 2005
  • Ingår i: Thorax. - : BMJ. - 1468-3296 .- 0040-6376. ; 60:4, s. 343-349
  • Forskningsöversikt (refereegranskat)abstract
    • During the last decade several long term studies of interventions in patients with COPD have been published. This review analyses the potential of these interventions to alter the progression of the condition. The only treatment that has unequivocally been shown to reduce the rate of decline in FEV(1) is smoking cessation. Active psychological intervention in combination with pharmacotherapy is required. Other treatments may have an effect on the rate of decline in FEV(1) but this appears to be very small, at most. Several treatments affect the exacerbation rate and therefore might affect the progression of the disease. Further studies are warranted to examine this effect.
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4.
  • Kourist, Robert, et al. (författare)
  • Understanding promiscuous amidase activity of an esterase from Bacillus subtilis
  • 2008
  • Ingår i: ChemBioChem. - : Wiley. - 1439-4227 .- 1439-7633. ; 9:1, s. 67-69
  • Tidskriftsartikel (refereegranskat)abstract
    • Water works. Bacillus subtilis esterase BS2 is a promiscuous esterase that shows amidase activity. This amidase activity was shown to depend on a hydrogen-bond network with the substrate amide hydrogen (indicated by arrow). When this stabilising hydrogen bond network was removed by a point mutation, the amide activity was significantly lowered in comparison with the esterase activity. (Figure Presented)
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  • Resultat 1-4 av 4

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