Typologies, taxinomies, classifications : de nombreuses confusions règnent autour ces notions mobilisées dans les travaux procédant à des comparaisons en politique comparée et s’appuyant sur l’élaboration « types ». Cet article vise clarifier usages identifiant quatre formes typologie, distinguer selon le mode d’élabo...

These four case studies examine the introduction of interactive videodisc technology into three classroom settings by two art and two science teachers at the elementary school level. Five models of videodisc use were employed: (1) teacher presentation or teacher-led class discussion; 2) activity stimulus; (3) programmed disc-based environments (i.e., simulations, games, or other problem-solving...

Upper extremity musculoskeletal symptoms and disorders are common in the working population. The economic and social impact of such disorders is considerable. Long-time, dynamic repetitive exposure of the hand-arm system during manual handling operations (MHO) alone or in combination with static and postural effort are recognised as causes of musculoskeletal symptoms and disorders. The assessme...

BIOCHEMISTRY, MEDICAL SCIENCES. For the article ‘‘Structure of the topoisomerase II ATPase region and its mechanism of inhibition by the chemotherapeutic agent ICRF-187,’’ by Scott Classen, Stephane Olland, and James M. Berger, which appeared in issue 19, September 16, 2003, of Proc. Natl. Acad. Sci. USA (100, 10629–10634; first published September 8, 2003; 10.1073 pnas.1832879100), the authors...

Michel Tournier was a philosopher before being novelist. And even when he decided to become novelist, introduced himself as « smuggler of philosophy ». But it is impossible take full measure this statement without considering the one and only philosophical text ever published, in 1946: « L’Impersonnalisme ». This article, which considered be his &#1...

Neutron-deficient nuclei near the Z=82 closed shell exhibit the phenomenon of shape coexistence where the nucleus can take on oblate, prolate, and even spherical shapes at around the same excitation energy. The single-proton excitations in 187 Tl (with Z=81) can be used as a probe into the microscopic mechanisms behind this phenomenon. Previous studies of 187 Tl deduced the presence of coexisti...