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Träfflista för sökning "WFRF:(Christiansen Ola) srt2:(2010-2014)"

Sökning: WFRF:(Christiansen Ola) > (2010-2014)

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1.
  • Aidas, Kestutis, et al. (författare)
  • The Dalton quantum chemistry program system
  • 2014
  • Ingår i: Wiley Interdisciplinary Reviews. Computational Molecular Science. - : Wiley. - 1759-0876. ; 4:3, s. 269-284
  • Tidskriftsartikel (refereegranskat)abstract
    • Dalton is a powerful general-purpose program system for the study of molecular electronic structure at the Hartree-Fock, Kohn-Sham, multiconfigurational self-consistent-field, MOller-Plesset, configuration-interaction, and coupled-cluster levels of theory. Apart from the total energy, a wide variety of molecular properties may be calculated using these electronic-structure models. Molecular gradients and Hessians are available for geometry optimizations, molecular dynamics, and vibrational studies, whereas magnetic resonance and optical activity can be studied in a gauge-origin-invariant manner. Frequency-dependent molecular properties can be calculated using linear, quadratic, and cubic response theory. A large number of singlet and triplet perturbation operators are available for the study of one-, two-, and three-photon processes. Environmental effects may be included using various dielectric-medium and quantum-mechanics/molecular-mechanics models. Large molecules may be studied using linear-scaling and massively parallel algorithms. Dalton is distributed at no cost from for a number of UNIX platforms.
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2.
  • Hessman, Ola, et al. (författare)
  • Randomized clinical trial comparing open with video-assisted minimally invasive parathyroid surgery for primary hyperparathyroidism
  • 2010
  • Ingår i: British Journal of Surgery. - : Oxford University Press (OUP). - 0007-1323 .- 1365-2168. ; 97:2, s. 177-184
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Previous studies of video-assisted techniques for parathyroidectomy in patients with primary hyperparathyroidism have found similar or better results compared with bilateral neck exploration. The aim of the present study was to compare open minimally invasive parathyroidectomy with the video-assisted technique for primary hyperparathyroidism in a multicentre randomized trial. METHODS: Some 143 patients were randomized to open (n = 75) or video-assisted (n = 68) parathyroidectomy after positive sestamibi scintigraphy. There were no differences in preoperative data. The open operation was performed through a 15-mm incision. The video-assisted techniques used were minimally invasive video-assisted parathyroidectomy (MIVAP) or video-assisted parathyroidectomy using the lateral approach (VAPLA). Data were collected prospectively including postoperative pain scoring. RESULTS: The procedure was significantly quicker for the open compared to the video assisted operations: mean(s.d.) 60(35) versus 84(47) min (P = 0.001). Both groups of patients had similar conversion rates and the same outcome, with comparable incision lengths, low scores for postoperative neck discomfort, high cosmetic satisfaction and low complication rates. CONCLUSION: Open minimally invasive parathyroidectomy for primary hyperparathyroidism was quicker than either video-assisted technique.
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