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- Bjerre, Pontus, et al.
(författare)
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A randomized trial of basing treatment on human papillomavirus and/or cytology results in low-grade cervical lesion triage
- 2008
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Ingår i: American Journal of Obstetrics and Gynecology. - : Elsevier BV. - 1097-6868 .- 0002-9378. ; 199:1
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: This study was undertaken to compare management algorithms that base treatment with loop electrosurgical excision procedure on human papillomavirus and/or repeat Papanicolaou test smear results. STUDY DESIGN: A randomized trial that referred 674 women with either atypical squamous cells of undetermined significance or low-grade squamous intraepithelial lesions cytology results, detected in organized screening to treatment either (1) if they were positive in a repeat Papanicolaou test smear and/or a human papillomavirus test or (2) if they were positive in the repeat Papanicolaou test smear test only. Women who tested positive were treated, regardless of colposcopic findings. RESULTS: There were 208 of 337 (62%) women who were treated in the human papillomavirus /Papanicolaou test smear group (187/337 because of HPV positivity) and 138 of 337 (41%) in the Papanicolaou test smear only group. Histopathologically diagnosed cervical intraepithelial neoplasia grade 2 or worse was found among 112 of 337 (33.2%) women in the human papillomavirus/Papanicolaou test smear group compared with 85 of 337 (25.2%) women in the Papanicolaou test smear only group (P < .05). Twenty-one women with cervical intraepithelial neoplasia 2+ had normal colposcopy. CONCLUSION: For adequate cervical intraepithelial neoplasia 2+ sensitivity, the decision to use loop electrosurgical excision procedure needs to be based on human papillomavirus testing results and should not exclude women with normal colposcopy.
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| 2. |
- Camm, A J, et al.
(författare)
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Conventional and dedicated atrial overdrive pacing for the prevention of paroxysmal atrial fibrillation: the AFTherapy study.
- 2007
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Ingår i: Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology. - : Oxford University Press (OUP). - 1532-2092. ; 9:12, s. 1110-8
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Tidskriftsartikel (refereegranskat)abstract
- AIMS: This investigation was conducted to determine the effectiveness of several conventional overdrive pacing modalities (single rate and rate responsive pacing at various lower rates) and of four dedicated preventive pacing algorithms in the suppression of paroxysmal atrial fibrillation (AF). METHOD AND RESULTS: In this multi-centre, randomized trial, 372 patients with drug-refractory paroxysmal AF were enrolled. Patients received a dual-chamber pacing device capable of delivering conventional pacing therapy as well as dedicated AF prevention pacing therapies and to record detailed AF-related diagnostics. The primary endpoint was AF burden, whereas secondary endpoints were time to first AF episode and averaged sinus rhythm duration. During a conventional pacing phase, patients were randomized to single rate or rate-responsive pacing with lower rates of either 70 or 85 min(-1) or to a control group with single rate pacing at 40 min(-1). In the subsequent preventive pacing phase, patients underwent pacing at a lower rate of 70 min(-1) with or without concomitant application of four preventive pacing algorithms. A substantial amount of data was excluded from the analysis because of atrial-sensing artefacts, identified in the device-captured diagnostics. In the conventional pacing phase, no significant differences were found between various lower rates and the control group receiving single rate pacing at 40 min(-1) or between single rate and rate-responsive pacing. Patients receiving preventive pacing with all four therapies enabled had a similar AF burden compared with patients treated with conventional pacing at 70 min(-1) (P = 0.47). CONCLUSIONS: The results do not demonstrate a significant effect of conventional atrial overdrive pacing or preventive pacing therapies. However, the observations provided important information for further consideration with respect to the design and conduct of future studies on the effect of atrial pacing therapies for the reduction of AF.
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| 7. |
- Edvardsson, D., et al.
(författare)
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An experimental and theoretical investigation of the valence double photoionisation of the IC molecule
- 2007
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Ingår i: Chemical Physics. - : Elsevier BV. - 0301-0104 .- 1873-4421. ; 332:2-3, s. 249-254
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Tidskriftsartikel (refereegranskat)abstract
- The double valence photoelectron spectrum of ICl has been measured at two photon energies,303.78 angstrom and 379.3 angstrom, by the TOF-PEPECO technique. Relativistic molecular electronic structure calculations have been performed for electronic states connected to the three lowest groups of dissociation limits to support the interpretation, and vibrational constants have been calculated for the quasi-bound states. The two lowest double ionisation energies are found to be 27.45 +/- 0.1 eV (vertical) and 27.69 +/- 0.1 eV (vertical). They are associated with the X-3 Sigma(-)(0.1), electronic states of ICl2+, respectively, which are the only states predicted to be stable by the calculations. The two following states connected to the same configuration are in order a (1)Delta(2), and b (1)Sigma(+)(0). The double ionisation processes building up the spectrum are found to be mainly direct, and energies and widths of the bands are well reproduced by the calculations.
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| 9. |
- Edvardsson, D, et al.
(författare)
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An experimental and theoretical investigation of the valence double photoionisation of the iodine molecule
- 2006
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Ingår i: Chemical Physics. - : Elsevier BV. - 0301-0104 .- 1873-4421. ; 324:2-3, s. 674-678
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Tidskriftsartikel (refereegranskat)abstract
- The double photoionisation spectrum of molecular iodine has been measured at three wavelengths by the TOF-PEPECO technique and is interpreted using relativistic molecular structure COSCI calculations of potential curves for a large number of electronic states connected to the three lowest groups of dissociation limits. The lowest double ionisation energy is 24.85 ± 0.02 eV (adiabatic) or 24.95 ± 0.02 eV (vertical). It is associated with the electronic state of . The double ionisation process is mainly direct, and positions and widths of the bands are well reproduced by the calculations.
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| 11. |
- Fleig, Timo, et al.
(författare)
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A theoretical and experimental study of the double photoionisation of molecular bromine and a new double ionisation mechanism
- 2008
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Ingår i: Chemical Physics. - : Elsevier BV. - 0301-0104 .- 1873-4421. ; 343:2-3, s. 270-280
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Tidskriftsartikel (refereegranskat)abstract
- Complete double photoionisation spectra of Br2 have been measured at 30.4, 37.9 and 40.7 nm. The spectra are compared with high level relativistic calculations of the state energies and potential energy surfaces of Br22 + carried out within a four-component relativistic framework. Excellent agreement is obtained between experimental and theoretical relative state energies which allows for an assignment of the main part of the spectrum. Spectroscopic constants and tunnelling lifetimes have been determined for quasi-bound states. From the experimentally determined electron distributions we deduce that a new form of dissociative autoionisation plays a major role in double photoionisation of bromine and other molecules where certain atomic ions are major fragmentation products. © 2007 Elsevier B.V. All rights reserved.
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| 13. |
- Hansson, S. O., et al.
(författare)
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Policycykeln : En modell för beslutsprocesser i miljöfrågor
- 2006
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Ingår i: Karin Edvardsson och Sven Ove Hansson (red), Vägar till ett effektivt miljöarbete. - Umeå : Boréa bokförlag. - 9189140478
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- I kapitlet diskuteras utifrån policyprocessens olika steg hur beslutsprocesser inom miljöområdet kan och bör studeras.
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| 16. |
- Ryde, Nils, et al.
(författare)
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Abundances in bulge stars from high-resolution, near-IR spectra I. The CNO elements observed during the science verification of CRIRES at VLT
- 2009
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Ingår i: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 496:3, s. 701-U141
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Tidskriftsartikel (refereegranskat)abstract
- Context. The formation and evolution of the Milky Way bulge is not yet well understood and its classification is ambiguous. Constraints can, however, be obtained by studying the abundances of key elements in bulge stars. Aims. The aim of this study is to determine the chemical evolution of C, N, O, and a few other elements in stars in the Galactic bulge, and to discuss the sensitivities of the derived abundances from molecular lines. Methods. High-resolution, near-infrared spectra in the H band were recorded using the CRIRES spectrometer on the Very Large Telescope. Due to the high and variable visual extinction in the line-of-sight towards the bulge, an analysis in the near-IR is preferred. The C, N, and O abundances can all be determined simultaneously from the numerous molecular lines in the wavelength range observed. Results. The three giant stars in Baade's window presented here are the first bulge stars observed with CRIRES during its science verification observations. We have especially determined the C, N, and O abundances, with uncertainties of less than 0.20 dex, from CO, CN, and OH lines. Since the systematic uncertainties in the derived C, N, and O abundances due to uncertainties in the stellar fundamental parameters, notably T-eff, are significant, a detailed discussion of the sensitivities of the derived abundances is included. We find good agreement between near-IR and optically determined O, Ti, Fe, and Si abundances. Two of our stars show a solar [C+N/Fe], suggesting that these giants have experienced the first dredge-up and that the oxygen abundance should reflect the original abundance of the giants. The two giants fit into the picture, in which there is no significant difference between the oxygen abundance in bulge and thick-disk stars. Our determination of the sulphur abundances is the first for bulge stars. The high [ S/Fe] values for all the stars indicate a high star-formation rate in an early phase of the bulge evolution.
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