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  • Citron, I., et al. (författare)
  • Surgical quality indicators in low-resource settings: A new evidence-based tool
  • 2018
  • Ingår i: Surgery. - 0039-6060. ; 164:5, s. 946-952
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Worldwide efforts to improve access to surgical care must be accompanied by improvements in the quality of surgical care; however, these efforts are contingent on the ability to measure quality. This report describes a novel, evidence-based tool to measure quality of surgical care in low-resource settings. Methods: We defined a widely applicable, multidimensional conceptual framework for quality. The suitability of currently available quality metrics to low-resource settings was evaluated. Then we developed new indicators with sufficient supportive evidence to complete the framework. The complete set of metrics was condensed into four collection sources and tools. Results: The following 15 final evidence-based indicators were defined: (1) Safe structure: morbidity and mortality conference; (2) safe process: use of the safe surgery checklist; (3) (4) safe outcomes: perioperative mortality rate and proportion of cases with complications graded >2 on the Clavien-Dindo scale; (5) effective structure: provider density; (6) effective process: procedure rate; (7) effective outcome: rate of caesarean sections; (8) patient-centered process: use of informed consent; (9) patient-centered outcome: patient hospital satisfaction questionnaire; (10) timely structure: travel time to hospital; (11) timely process: time from emergency department presentation to non-elective abdominal surgery; (12) timely outcome: patient follow-up plan; (13) efficient process: daily operating room usage; (14) equitable outcome: comparative income of patients compared with population; and (15) proportion of patients facing catastrophic expenditure because of surgical care. Conclusion: This tool provides an evidence-based conceptual tool to assess the quality of surgical care in diverse low-resource settings.
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  • Orel, A. E., et al. (författare)
  • Resonances in dissociative recombination : Trends and patterns
  • 2009
  • Ingår i: Journal of Physics, Conference Series. - 1742-6588 .- 1742-6596. ; 192, s. 012006-
  • Tidskriftsartikel (refereegranskat)abstract
    • In dissociative recombination, the kinetic energy of the incident electron is transferred into excitation of the electrons of the target ion and then into kinetic energy of the fragments. In general, this proceeds via a resonance where the electron is temporarily trapped by the ion, leading to efficient energy transfer. The study of dissociative recombination is the study of these resonances, Rydberg states converging to the ground and excited states of the ion. For a number of systems, we have studied the electronic states involved in dissociative recombination, including the ground and excited states of the ion, the resonant states and the bound Rydberg states of the system, by combining electron scattering calculations with multi-reference configuration interaction quantum chemistry calculations. We will report on trends and patterns in these resonance states. We will discuss studies of dissociative recombination of the rare-gas ions, moving down the periodic table from He+ 2 to Ne+ 2 to Ar+ 2, where the ground electronic state of the ion is constant, but its polarizability increases. We will also present results on isoelectronic polyatomic systems, such as HCO + and HCNH+, as well as the effects of changing the electronic structure slightly such as HCN+/HNC+ and H 2CO+.
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  • Resultat 1-4 av 4

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