4 research outputs found
Gestion des interdĂ©pendances reliĂ©es Ă lâutilisation des produits pĂ©troliers
RĂSUMĂ : Les travaux de recherche menĂ©s par le Centre risque & performance (CRP) de lâĂcole Polytechnique de MontrĂ©al dans le domaine des interdĂ©pendances entre les infrastructures essentielles ont abouti au dĂ©veloppement de DOMINO, un outil permettant dâanticiper la propagation spatio-temporelle des effets domino. Ce mĂ©moire est issu de la volontĂ© du CRP dâintĂ©grer la gestion des interdĂ©pendances reliĂ©es Ă lâutilisation des produits pĂ©troliers Ă ses travaux. Ainsi, il est nĂ©cessaire dâadapter la mĂ©thodologie du CRP afin de permettre la prise en compte de cette ressource dans le traitement des interdĂ©pendances. DĂ©veloppĂ©e en contact direct avec les gestionnaires dâune infrastructure essentielle, lâapproche proposĂ©e dans ce mĂ©moire intĂšgre des paramĂštres de caractĂ©risation des produits pĂ©troliers afin de proposer des outils dâaide Ă la dĂ©cision. Lâapproche par consĂ©quence du CRP a permis de dĂ©velopper cette approche dans le cas gĂ©nĂ©ral dâune pĂ©nurie de produits pĂ©troliers, puis dans le cas particulier dâune panne Ă©lectrique majeure.
Ce travail de recherche a permis de dĂ©velopper des outils adaptĂ©s aux besoins des gestionnaires dâinfrastructures. Ces outils permettent aux gestionnaires dâaugmenter leur niveau de connaissance de la zone Ă lâĂ©tude, dâinitialiser des simulations et de prioriser les approvisionnements en produits pĂ©troliers Ă partir de deux critĂšres, soit la gravitĂ© des consĂ©quences du manque de produits pĂ©troliers et lâautonomie des Ă©quipements. Lâapplication de lâapproche dans le cadre dâune Ă©tude de cas rĂ©alisĂ©e sur une infrastructure a permis dâobtenir des rĂ©sultats intĂ©ressants. Ainsi il apparait quâen cas de perturbation les outils proposĂ©s permettent aux gestionnaires dâaccĂ©der rapidement Ă des informations pertinentes telles que lâĂ©valuation des besoins en produits pĂ©troliers, les requis pour fonctionner, le stock disponible et les ressources alternatives existantes. Les rĂ©sultats obtenus constituent une aide Ă la dĂ©cision pour les gestionnaires qui ont pour missions de prioriser les Ă©quipements, dâassurer un approvisionnement supplĂ©mentaire adaptĂ©, de rĂ©partir la ressource entre les Ă©quipements ou encore dâadapter la consommation de produits pĂ©troliers. Ce mĂ©moire ouvre la voie Ă dâautres travaux de recherche tels que lâimplĂ©mentation des outils dans DOMINO, lâimplantation de lâapproche Ă lâĂ©chelle municipale et le dĂ©veloppement de nouveaux des critĂšres dâanalyse de cohĂ©rence.----------ABSTRACT : The research conducted by the Centre risque & performance (CRP) of the Ecole Polytechnique of Montreal in the field of interdependencies among critical infrastructures have led to the development of DOMINO, a tool that anticipate the spatio-temporal propagation of domino effects. This dissertation comes from the will of CRP to integrate the management of interdependencies related to the use of petroleum products in its work. Thus, it is necessary to adapt the methodology of CRP to allow the integration of this resource in the treatment of interdependencies. Developed in contact with critical infrastructures managers, the approach integrates parameters characterizing petroleum products to provide decision support tools. The CRP consequences-based approachâs has enabled the development of this approach in the general case of a shortage of petroleum products and in the event a major power outage. This research led to the development of tools adapted to the needs of the infrastructure managers. These tools allow managers to increase their knowledge of the study area, initialize simulations and prioritize petroleum product supplies from two criteria, the severity of the consequences of lack of petroleum products and the autonomy of equipment.
The application of the approach in a case study on infrastructure has yielded interesting results. Thus, it appears that in case of disturbance the proposed tools allow manager to quickly access information such as needs assessment in petroleum products, required to operate, stock available and existing alternative resources. The results obtained are a decision support for managers who have to prioritize equipment, to provide adapted additional supply, allocate resources between equipment, or even adapt the consumption of petroleum products. This dissertation opens the way for further research, such as the implementation of the tools in DOMINO, the implementation of the approach at the municipal level and the development of new coherence analysis criteria
Efficiency of the RADPAD Surgical Cap in Reducing Brain Exposure During Pacemaker and Defibrillator Implantation
MAP3K8/TPL-2/COT is a potential predictive marker for MEK inhibitor treatment in high-grade serous ovarian carcinomas
International audienceOvarian cancer is a silent disease with a poor prognosis that urgently requires new therapeutic strategies. In low-grade ovarian tumours, mutations in the MAP3K BRAF gene constitutively activate the downstream kinase MEK. Here we demonstrate that an additional MAP3K, MAP3K8 (TPL-2/COT), accumulates in high-grade serous ovarian carcinomas (HGSCs) and is a potential prognostic marker for these tumours. By combining analyses on HGSC patient cohorts, ovarian cancer cells and patient-derived xenografts, we demonstrate that MAP3K8 controls cancer cell proliferation and migration by regulating key players in G1/S transition and adhesion dynamics. In addition, we show that the MEK pathway is the main pathway involved in mediating MAP3K8 function, and that MAP3K8 exhibits a reliable predictive value for the effectiveness of MEK inhibitor treatment. Our data highlight key roles for MAP3K8 in HGSC and indicate that MEK inhibitors could be a useful treatment strategy, in combination with conventional chemotherapy, for this disease