Rôle des inspecteurs de l’enseignement secondaire en Communauté française de Belgique

L’organisation de l’enseignement en trois réseaux détermine les missions assignées aux inspecteurs. Dans les deux réseaux subventionnés, elles se limitent au contrôle. Elles sont plus larges dans le réseau officiel géré par le ministre et concernent le contrôle, le conseil et l’élaboration des programmes. Les mutations du système éducatif rendraient nécessaires le recours à des approches pluridisciplinaires et la pratique d’audit d’établissement

European Lung Cancer Working Party Clinical Practice Guidelines. Non-Small Cell Lung Cancer: III. Metastatic disease

The present guidelines on the management of advanced non-small cell lung cancer (NS CLC) were formulated by the ELCWP in October 2006. They are designed to answer the following twelve questions: 1) What benefits can be expected from chemotherapy and what are the treatment objectives? 2) What are the active chemotherapeutic drugs for which efficacy has been shown? 3) Which are the most effective platinum-based regimens? 4) Which is the indicated dosage of cisplatin? 5) Can carboplatin be substituted for cisplatin? 6) Which is the optimal number of cycles to be administered? 7) Can non-platinum based regimens be substituted for platinum based chemotherapy as first-line treatment? 8) Is there an indication for sequential chemotherapy? 9) What is the efficacy of salvage chemotherapy and which drugs should be used in that indication? 10) What is the place of targeted therapies? 11) What is the place of chemotherapy in the management of a patient with brain metastases? 12) Which specific drugs can be used for the patient with bone metastases

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Thèse d'EtatDe nombreux composés oxygénés ternaires MIIAO contenant un élément alcalino-terreux ou le plomb ont été signalés et étudiés au cours des cinquantes dernières années. Certains se sont révélés par ticulièrement importants en raison de leurs propriétés physiques : les ferrites ferrimagnétiques de structure magnétoplombite...non disponibl

Symétrie et propriétés physiques des phases de type chiolite

International audienceThe relations between the crystallog. unit cells of all phases with the chiolite (or related) structure, the possibilities of phase transition sequences, and potential phys. properties, such as piezoelec., ferroelec., and ferroelasticity, are discussed

Lead-free relaxor ferroelectrics with 'TTB' structure

Preparation and dielectric characterisations of a great number of TTB-type ceramics have allowed us to show that some of them present relaxor behaviour, due to the occupation of the same crystallographic site by two different cations or anions. One of the cation in the octahedral site has to be ferroelectrically active. The relaxor effect is correlated to either cationic distribution disorder in the same site or dilution of the ferroelectric character

Solid-state chemistry and non-linear properties of tetragonal tungsten bronzes materials

Non-linear properties of tetragonal tungsten bronze materials are related to solid-state chemistry. This family is very prolific, with its five different cationic or anionic crystallographic sites. The physical characteristics are correlated to composition and chemical bonding. Some effective or potential applications are described

Nouveaux tantalates ferroélectriques de type bronze quadratique de tungstène (de la structure aux propriétés physiques)

BORDEAUX1-BU Sciences-Talence (335222101) / SudocSudocFranceF

Lead-free relaxors

So-called ferroelectric materials may be divided into two classes: ferroelectrics and relaxors (Table 30.1) [1]. Typically, relaxors have at least one crystallographic site that is occupied by two or more ions..