Transcribing the contemporary city: Le Corbusier, Adelaide and Chandigarh

Within the space of seven months in 1950-51, Le Corbusier committed two celebrated city plans to paper. One was his seminal plan of Chandigarh, the modern capital of the Punjab, made in February 1951. The other, made earlier in August 1950, was a re-drawing of Colonel William Light’s plan of Adelaide, South Australia, the result of a chance meeting between Le Corbusier and a professor of the University of Adelaide on secondment in the Americas. This paper brings attention to the unusual circumstances surrounding the making of Le Corbusier’s drawing of Adelaide and observes parallels in its making with the relatively concurrent planning of Chandigarh and the processes of design and drawing attributed to Le Corbusier through his association with the CIAM group. Out of this discussion the paper also reconsiders the question of Chandigarh’s origins as a work of design and speculates upon qualities of transcription and imaginative projection in the architect’s Adelaide and Chandigarh drawings

Hydroformylation and Aldehyde-Water Shift Catalysis by Dirhodium Tetraphosphine Complexes

The use of a unique tetraphosphine ligand (et,ph-P4) allows for the chelating of two rhodium centers to perform bimetallic coopertivity in hydroformylation reactions to better the yields the linear aldehyde product. The proposed catalyst is [Rh2(μ-H)2(CO)4(rac-et,ph-P4)]2+ and has been studied by in situ FT-IR and NMR. When tested in a polar phasic acetone/water (30 % by vol.), the catalyst forms a monocationic system [Rh2(μ-H)2(CO)4(rac-et,ph-P4)]+ that has an initial TOF of 26 min-1, selectivity of 27:1 L:B, and low byproducts of 4.6 % alkene isomerization and 1.3 % hydrogenation for the conversion of 1-hexene to heptanal. Previous in situ FT-IR and NMR research as well as DFT calculations have determined the active catalyst and mechanism for both the dicationic and monocationic systems. A new stronger chelating tetraphosphine ligand (et,ph-P4-Ph) as been built to function similarly to the et,ph-P4 ligand. After a preliminary synthetic scheme for the production of et,ph-P4-Ph, optimization of the key synthetic steps has been accomplished. This optimization allows for the increase in yields of those steps and the separation of the rac- and meso-diastereomers of the ligand. Use of this ligand to chelate two rhodium centers has occurred and a crystal structure of [Rh2(nbd)2(rac-et,ph-P4-Ph)](BF4)2 has been obtained. This complex has been studied by in situ FT-IR and NMR experiments to determine the nature of the catalytic system. Out of these studies the highly active complex [Rh2(μ-CO)(CO)3(rac-et,ph-P4)](BF4)2 has been synthesized and characterized by X-ray diffraction. When used in hydroformylation in a polar phasic DMF/water (25 % by vol.), the new catalyst has initial TOF of 35 min-1, an aldehyde L:B selectivity of 18:1, 1.9 % alkene isomerization, and \u3c 1 % alkene hydrogenation. Attempts have also been made to use this complex for aldehyde-water shift reactions. Further work is underway to further these studies for publication

Etude des publics du réseau toulousain de lecture publique

Etude de public réalisée dans le cadre d\u27un mémoire de maîtrise IUP d\u27ingénierie documentaire. Etude complète des publics du réseau des bibliothèques toulousaines dans le cadre de l\u27ouverture d\u27une grande médiathèque centrale (BMVR, médiathèque José Cabanis). Comparaison des profils et pratiques des publics entre la centrale et les bibliothèques de quartier, impact de l\u27ouverture de la BMVR sur la composition et les usages des publics du réseau. Analyse (tome 1) et résultats détaillés (tome 2) d\u27une enquête conduite par questionnaire

Movement and figurality: The circulation diagram and the history of the architectural plan

Knowledge of the plan competes with self-consciousness of experience. The less we are able to understand our spatio-visual experience by the abstract coordinates of the plan, the more we are thrust back into a lived experience of the building in duration. This formula, frequently unacknowledged, has been one of the main precepts of the experientialist modernism which arises out of the picturesque and which stands in critique of classical idealism. One of the paths to critique this formula is by showing that the attention to the experience of the spaces in duration is predicated on obscuring, complicating and weakening the apprehension of the plan as a figure. Another development in the practice of modern planning has been architects using a kind of over-drawing where human circulation diagrams or 'movement lines' are drawn expressively across the orthographic plane; thus representing the lived experience of buildings. We will show that these two issues are linked; the plan's weak figure and the privilege this supposes for durational experience has a corollary - experience itself demands to be visible in the plan, and this is one origin of the present fascination with 'diagramming'. In this paper we explore the practice of architectural planning and its theoretical underpinnings in an attempt to show the viability of a history of architectural planning methods

Des bibliothèques délocalisées…

Comment concilier multiplication des sites et diversité de l’offre, en réponse à l’exigence de proximité, avec la rationalisation des acquisitions, de la gestion des fonds et des personnels ? Intégration, politique documentaire, mutualisation des ressources sont les outils de la démocratisation du savoir