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Träfflista för sökning "WFRF:(Walczak A) srt2:(2005-2009)"

Sökning: WFRF:(Walczak A) > (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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  • Knasnik, L, et al. (författare)
  • Routine clinical laboratory tests correspond to increased serum levels of 3-hydroxy fatty acids, markers of endotoxins, in cardiosurgery patients
  • 2006
  • Ingår i: Archivum Immunologiae et Therapiae Experimentalis. - : Springer Science and Business Media LLC. - 0004-069X .- 1661-4917. ; 54:1, s. 55-60
  • Tidskriftsartikel (refereegranskat)abstract
    • Introduction: Endotoxemia developing during cardiosurgery as elevated endotoxin concentrations in patient's serum may prevail over 24 h after operation. A major reason is thought to be increased gut permeability resulting in endotoxin and bacterial leakage. In this study we aimed to measure endotoxin levels on samples obtained during and after cardiovascular procedures and compare them with clinical observations and laboratory test results. Materials and Methods: 3-Hydroxy fatty acids (3-OH FAs) of 10-18 carbon chain length, chemical markers of endotoxin (lipopolysaccharide), were determined in patient sera by gas chromatography-mass spectrometry-based analysis. Results were compared with routine laboratory tests: blood morphology, urine, ALT, AST, bilirubin, kidney parameters, clotting parameters, and gasometry. Results: Of a total of 16 patients, 5 patients (group I) showed increased serum 3-OH FA levels and 11 patients (group II) did not show any change in 3-OH FA levels 24 h after operation. All group I patients revealed leukocytosis, two developed post-operative anemia. Significantly different changes were observed: the initial, pre-operative 3-OH FA levels were similar for both groups, while group I patients showed increased levels of all the studied 3-OH FAs during the operation (p <= 0.05), and 3-OH C14 and 3-OH C16 remained elevated 24 h after the operation. Conclusions: Cardiosurgery may strongly promote gut endotoxin translocation to the blood in some patients. Prolonged leukocytosis, deep anemia, and increased liver dysfunction markers may indicate the need for observation of possible endotoxemia development. It is recommended to monitor the endotoxin level and/or endotoxemia markers in cardiosurgery patients.
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