Stages intensifs d'initiation à l'informatique

in Actes du colloque "Enseignement, formation et pratique active de l'informatique par l'enfant" (1982, December)

A Staging Model to Guide Psychological Interventions in Psychosis

in Psychiatric Services (2009), 60

Staging of primary cervical cancers: the role of nuclear medicine

in Critical Reviews in Oncology/Hematology (2003), 46(3), 275-284

In nuclear medicine, [F-18]-fluorodeoxyglucose positron emission tomography ((18)FDG PET) and lymphatic mapping and sentinel lymphadenectomy (LM/SL) may significantly improve the staging of primary ... [more ▼]

In nuclear medicine, [F-18]-fluorodeoxyglucose positron emission tomography ((18)FDG PET) and lymphatic mapping and sentinel lymphadenectomy (LM/SL) may significantly improve the staging of primary cervical cancers. Indeed, the disease progresses in a 'level by level' fashion to regional nodes through the lymphatic channels, and also to extra-nodal sites via the hematogenous stream. Additionally, the sub-optimal efficacy of routine radiological protocols, while new combined therapies are proving to be more efficient, stresses the need for alternative staging procedures. Current data suggest that LM/SL accurately reflects the regional lymph node status in early stage cervical cancers, and thus could avoid unnecessary complete lymphadenectomies. Also, whole body (18)FDG PET may provide valuable insights on extra-pelvic and distant tumor spreading, with a significant impact on treatment choices. If these promising results are confirmed on large controlled trials, LM/SL and (18)FDG PET imaging could be incorporated in the routine staging work-up of primary cervical cancers. (C) 2003 Elsevier Science Ireland Ltd. All rights reserved. [less ▲]

Staging of the Mediastinum: Value of Positron Emission Tomography Imaging in Non-Small Cell Lung Cancer

in European Respiratory Journal : Official Journal of the European Society for Clinical Respiratory Physiology (1996), 9(12), 2560-4

Recent studies have shown limitations of morphological imaging in staging mediastinal lymph node involvement in lung cancer. In contrast to computed tomography (CT), which depends primarily on anatomical ... [more ▼]

Recent studies have shown limitations of morphological imaging in staging mediastinal lymph node involvement in lung cancer. In contrast to computed tomography (CT), which depends primarily on anatomical imaging features, positron emission tomography (PET) with 18-fluorodeoxyglucose (FDG) depends mainly on the metabolic characteristics of a tissue for the diagnosis of disease. We have performed a prospective study comparing FDG-PET and CT of the thorax in the presurgical assessment of the mediastinum in 50 patients with newly diagnosed non-small cell lung cancer (NSCLC). CT and PET scans were interpreted separately, and results were compared to pathological staging obtained during thoracotomy. Hilar or mediastinal lymph node involvement was present in 58%. In staging for lymph node involvement, CT had a sensitivity of 72% and specificity of 81%, whereas PET had a sensitivity and specificity of 90% and 86%, respectively. When the PET study was compared to histological results, there were four cases showing more advanced mediastinal involvement with PET and four cases showing less involvement with PET. From our preliminary results, we conclude that positron emission tomography with 18-fluorodeoxyglucose is significantly more accurate than computed tomography in the mediastinal staging of non-small cell lung cancer. [less ▲]

Stainless steel beam-columns in case of fire

in Beale, R. G. (Ed.) proceedings of the 6th International Conference on Steel and Aluminium Structures ICSAS'07 (2007, July 25)

Eurocode 3 states that stainless steel structural members, subjected to high temperatures, must be designed with the same expressions used on carbon steel members. However, as these two materials have ... [more ▼]

Eurocode 3 states that stainless steel structural members, subjected to high temperatures, must be designed with the same expressions used on carbon steel members. However, as these two materials have different constitutive laws, it should be expected that different formulae for the calculation of member stability should be used for room temperature design. In a recent work, the authors have proposed a more accurate procedure for the evaluation of the fire resistance of stainless steel columns which necessarily affects the beam-column design formulae. This work presents a numerical study of the behaviour of stainless steel beam-columns subjected to fire. [less ▲]

Stainless steel grafting of hyperbranched polymer brushes with an antibacterial activity: synthesis, characterization and properties

in Langmuir (2009), 25(2), 891-902

Two strategies were used for the preparation of hyperbranched polymer brushes with a high density of functional groups: (a) the cathodic electrografting of stainless steel by poly[2-(2-chloropropionate ... [more ▼]

Two strategies were used for the preparation of hyperbranched polymer brushes with a high density of functional groups: (a) the cathodic electrografting of stainless steel by poly[2-(2-chloropropionate)ethyl acrylate] [poly(cPEA)], which was used as a macroinitiator for the atom transfer radical polymerization of an inimer, 2-(2-bromopropionate)ethyl acrylate in the presence or absence of heptadecafluorodecyl acrylate, (b) the grafting of preformed hyperbranched poly(ethyleneimine) onto poly(N-succinimidyl acrylate) previously electrografted onto stainless steel. The hyperbranched polymer, which contained either bromides or amines, was quaternized because the accordingly formed quaternary ammonium or pyridinium groups are known for antibacterial properties. The structure, chemical composition, and morphology of the quaternized and nonquaternized hyperbranched polymer brushes were characterized by ATR-FTIR reflectance, Raman spectroscopy, X-ray photoelectron spectroscopy, and atomic force microscopy. The peeling test confirmed that the grafted hyperbranched polymer films adhered much more strongly to stainless steel than the nongrafted solvent-cast films. The quaternized hyperbranched polymer brushes were more effective in preventing both protein adsorption and bacterial adhesion than quaternary ammonium containing poly(cPEA) primary films, more likely because of the higher hydrophilicity and density of cationic groups. [less ▲]

Stainless steel in structures in view of sustainability

in Stainless steel in structures: Fourth International Structural Stainless Steel Experts Seminar: Ascot 6)7 December 2012 (2012)

Recent years have seen an increase in the use of structural stainless steel, mainly owing to its aesthetic and architectural qualities alongside durability. Among stainless steels, ferritic grades are ... [more ▼]

Recent years have seen an increase in the use of structural stainless steel, mainly owing to its aesthetic and architectural qualities alongside durability. Among stainless steels, ferritic grades are characterized by low nickel content resulting in a more cost-stable and economic material compared with austenitic stainless steels, allowing a balanced approach between economic and environmental aspects. As an introduction, this paper presents the recent research outcomes especially concerning the currently ongoing RFCS project “Structural Applications of Ferritic Stainless Steels”. Then, attention is paid to the advantages and challenges associated with the use of this material in recent construction projects in view of sustainability. Life cycle analysis is explained. The background of the new European standard EN 15804 is described, including Module D, which takes now into account the end-of-life phase. Life cycle inventories of stainless steel products (cold-rolled coils and quarto plate) are presented. Depending on the fraction of material recovered at the end of the lifespan, several potential impacts such as the Primary Energy Demand and Global Warming Potential are compared for four grades: 1.4301 (AISI 304) and 1.4401 (AISI 316) austenitic grades, 1.4016 (AISI 430) ferritic grade and 1.4462 (AISI 2205) duplex grade. The influence of the end-of-life credits and loads is underlined. [less ▲]

Stakeholders’ involvement as a social construct process, A use of the Actor Network Theory

Conference (2009, August 11)

We address the question of how organisations can gain the involvement of their stakeholders in CSR certifications projects. Applying the stakeholder theory and the actor network theory, we conceptualize ... [more ▼]

We address the question of how organisations can gain the involvement of their stakeholders in CSR certifications projects. Applying the stakeholder theory and the actor network theory, we conceptualize stakeholder involvement in the certification process of a diversity label. We also delineate the potential of our framework for future managerial applications. [less ▲]

Stand der osteoporose-Therapie. Ein Medizinischer Skandal

in MMW Fortschritte der Medizin (2001), 143(14), 43

Stand und Aufgaben der Forschung zur antiken Ethnographie

Conference given outside the academic context (2002)