Polynomial algorithm for finding the largest independent sets in graphs without forks

AbstractA fork is a graph that is obtained from K1,3 by subdividing one edge. It is known [6–8] that for K1,3-free graphs the problem of finding the largest independent set can be solved in a polynomial time. In this paper, we prove that this is also true for the wider class of fork-free graphs

Schildklierfunctiestoornissen, interpretatie van laboratoriumuitslagen

Laboratoriumtests spelen een centrale rol in de diagnose en behandeling van schildklierfunctiestoornissen. De bepaling van thyroïdstimulerend hormoon (tsh) is de hoeksteen van de diagnostiek. Bij een afwijkende waarde wordt het gehalte vrij thyroxine (ft4) bepaald. In deze bijdrage bespreken wij de interpretatie van deze twee uitslagen bij diagnostiek en controle, en de rol van trijodothyronine (t3) bij t3-toxicose. Aan de orde komen verder het belang van een autoantistoffenbepaling bij diagnostiek en prognose, valkuilen bij het interpreteren van de uitslagen, zoals de invloed van prednison, en verschillen tussen laboratoria door verschillende bepalingsmethodieken

A Survey of Patients' Views From Eight European Countries of Interpretive Support From Specialists in Laboratory Medicine

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Correlation of Preoperative State Anxiety and Pain Six Weeks After Surgical Correction of Pectus Excavatum

Contains fulltext : 220236.pdf (Publisher’s version ) (Open Access)Background: Pain is a major concern in the early postoperative phase after correction of pectus excavatum. Most studies only focus on pain management in the first days after surgery and describe methods to alleviate the pain immediately postoperatively. The severity of postoperative pain may be influenced by anxiety. So far, few studies have looked into the relationship between anxiety and postoperative pain after pectus excavatum correction. Objectives: This study aimed to investigate the correlation between preoperative anxiety and late postoperative pain scores. Methods: This was a prospective cohort study. Anxiety was assessed with the State and Trait Anxiety Inventory questionnaire. Visual analogue scale (VAS) for pain scores assessed the pain at rest and activity. Anxiety was measured before surgery and pain scores six weeks after surgery. A hierarchical linear regression analysis was performed to investigate the correlation between baseline anxiety and pain measurements six weeks after surgery. Results: In this study, 136 patients were included. State anxiety was not associated with postoperative pain (mean of pain on activity and in rest), only with pain on activity after six weeks. Age and sex were not effect modifiers in any of the models. Relevant confounding factors, although not significant, consisted of trait, sex, minor complications, epidural duration, major complications, and the number of stabilizer plates. The explained variance of state anxiety on VAS for pain scores was minimum after 6 weeks. Conclusions: Preoperative anxiety does not appear to influence postoperative pain after PE correction

Early Consequences of Pectus Excavatum Surgery on Self-Esteem and General Quality of Life

Contains fulltext : 194362.pdf (publisher's version ) (Open Access

The Outcome of the Single Step Questionnaire in Pectus Excavatum Patients is Phase Dependent

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