610 research outputs found
Measurement of disruption forces in JET using fiber-optic sensors
Monitoring the forces induced on the vacuum vessel when a disruption occurs is essential for the protection of the machine. Since divertor coils have been installed in JET, during disruptions a significant difference between the forces measured on the top and the bottom of the machine has been observed. In order to investigate these further, optical fiber transducers FBGs (Fiber Bragg Gratings) were installed in addition to the currently used strain gauges. During VDE (Vertical Displacement Event) tests, these new transducers were used to measure different level of disruptions ranging from 80T up to 230T vertical forces. The results were then compared with the strain gauges. The FBG measurement was carried out using a broadband light source illuminating an array of 4 FBGs through a combination of directional couplers, connectors and fiber-optic cable. The forces measured both by FBG and by the strain gauges are within the same range, except for the initial swing where large random differences are observed. The tests have demonstrated that the FBG-based force measurement system has adequate resolution (±1.52strain corresponding to a force of 4kN due to the geometry of the leg) and measurement range (50002strain or 13000kN) for this application
Volumineux lipome de la base du cou chez une chienne
Lombard Charles, Lescure Francis. Volumineux lipome de la base du cou chez une Chienne. In: Bulletin de l'Académie Vétérinaire de France tome 116 n°5, 1963. pp. 235-238
Sur un syndrome de vasodilatation paroxystique du cheval en course
Darraspen Ernest Vincent, Lescure Francis. Sur un syndrome de vasodilatation paroxystique du Cheval en course. In: Bulletin de l'Académie Vétérinaire de France tome 117 n°9, 1964. pp. 423-426
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Investigating the cultural and contextual determinants of antimicrobial stewardship programmes across low-, middle- and high-income countriesâA qualitative study
Background
Most of the evidence on antimicrobial stewardship programmes (ASP) to help sustain the effectiveness of antimicrobials is generated in high income countries. We report a study investigating implementation of ASP in secondary care across low-, middle- and high-income countries. The objective of this study was to map the key contextual, including cultural, drivers of the development and implementation of ASP across different resource settings.
Materials and methods
Healthcare professionals responsible for implementing ASP in hospitals in England, France, Norway, India, and Burkina Faso were invited to participate in face-to face interviews. Field notes from observations, documentary evidence, and interview transcripts were analysed using grounded theory approach. The key emerging categories were analysed iteratively using constant comparison, initial coding, going back the field for further data collection, and focused coding. Theoretical sampling was applied until the categories were saturated. Cross-validation and triangulation of the findings were achieved through the multiple data sources.
Results
54 participants from 24 hospitals (England 9 participants/4 hospitals; Norway 13 participants/4 hospitals; France 9 participants/7 hospitals; India 13 participants/ 7 hospitals; Burkina Faso 8 participants/2 hospitals) were interviewed. Across Norway, France and England there was consistency in ASP structures. In India and Burkina Faso there were country level heterogeneity in ASP. State support for ASP was perceived as essential in countries where it is lacking (India, Burkina Faso), and where it was present, it was perceived as a barrier (England, France). Professional boundaries are one of the key cultural determinants dictating involvement in initiatives with doctors recognised as leaders in ASP. Nurse and pharmacist involvement was limited to England. The surgical specialty was identified as most difficult to engage with in each country. Despite challenges, one hospital in India provided the best example of interdisciplinary ASP, championed through organisational leadership.
Conclusions
ASP initiatives in this study were restricted by professional boundaries and hierarchies, with lack of engagement with the wider healthcare workforce. There needs to be promotion of interdisciplinary team work including pharmacists and nurses, depending on the available healthcare workforce in different countries, in ASP. The surgical pathway remains a hard to reach, but critical target for ASP globally. There is a need to develop contextually driven ASP targeting the surgical pathway in different resource settings
Les formateurs dâadultes et leur formation
En 1998, paraĂźt un ouvrage sur les professions de lâĂ©ducation et de la formation. Le propos de lâouvrage, rĂ©unissant une quarantaine de spĂ©cialistes, est de revenir sur les transformations rapides que subissent ces professions, il prend acte de la « dĂ©stabilisation » dont elles sont lâobjet. Les diffĂ©rentes fonctions, mĂ©tiers et professions des trois grands secteurs de la transmission des savoirs â la formation initiale, la formation continue et lâenseignement supĂ©rieur â sont ainsi passĂ©es e..
Les formateurs dâadultes et leur formation
En 1998, paraĂźt un ouvrage sur les professions de lâĂ©ducation et de la formation. Le propos de lâouvrage, rĂ©unissant une quarantaine de spĂ©cialistes, est de revenir sur les transformations rapides que subissent ces professions, il prend acte de la « dĂ©stabilisation » dont elles sont lâobjet. Les diffĂ©rentes fonctions, mĂ©tiers et professions des trois grands secteurs de la transmission des savoirs â la formation initiale, la formation continue et lâenseignement supĂ©rieur â sont ainsi passĂ©es e..
Improper colourings inspired by Hadwigerâs conjecture
Hadwigerâs Conjecture asserts that every Kt-minor-free graph has a proper (t â 1)-colouring. We relax the conclusion in Hadwigerâs Conjecture via improper colourings. We prove that every Kt-minor-free graph is (2t â 2)-colourable with monochromatic components of order at most 1/2 (t â 2). This result has no more colours and much smaller monochromatic components than all previous results in this direction. We then prove that every Kt-minor-free graph is (t â 1)-colourable with monochromatic degree at most t â 2. This is the best known degree bound for such a result. Both these theorems are based on a decomposition method of independent interest. We give analogous results for Ks,t-minorfree graphs, which lead to improved bounds on generalised colouring numbers for these classes. Finally, we prove that graphs containing no Kt-immersion are 2-colourable with bounded monochromatic degree
Recurrent Bacteremia, a Complication of Cyanoacrylate Injection for Variceal Bleeding: Report of Two Cases and Review of the Literature
We report the first description of recurrent bacteremia in two patients after cyanoacrylate injection for gastric varices bleeding treated with antibiotics alone. Adapted and prolonged antibiotic treatment allowed a complete resolution of the infection with no relapse after more than 6 months. According to recent data, prophylactic antibiotics should be further investigated for patients with bleeding varices undergoing cyanoacrylate injection
Relations entre qualité du substrat, flux de matiÚres et activités humaines. Connaissance pour la gestion des ressources en eau de la Région Aquitaine
Les résultats de ce travail de recherche, confirment une fois de plus l'absence de déterminisme apparent entre qualité du substrat et occupation des sols. Ils montrent qu'il n'y a pas de variables prépondérantes ou explicatives de facteurs sociaux ou physiques qui soient responsables des variations affectant les milieux étudiés. Cependant, les analyses régressives des rapports entre homme et milieu montrent les liens étroits entre habitat et types de sol. L'action humaine a des effets sur la couverture végétale, sur les sols et sur l'hydraulique qui avec le climat et la topographie constituent les principaux facteurs d'érosion
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