De la eco-historia a la ecología-mundo

Desde tiempos prehistóricos, las actividades humanas han transformado los ecosistemas. Pero es con la llegada del capitalismo industrial se ha traspasado un umbral histórico. A finales del siglo XX, la constitución de un espacio mundo productivo es el estandarte de la unificación ecológica del mundo: de la destrucción acelerada de especies, de la contaminación de los océanos, del agujero en la capa de ozono atmosférica amenazan hoy al planeta. En el Tercer Mundo, las tensiones ambientales son viejas conocidas, como la deforestación y la desertificación. Llevándolos al umbral de una economía-mundo, el capitalismo, tanto en sus versiones clásicas como en sus avatares "socialistas" ha empujado a las sociedades a una nueva relación con la naturaleza: la de un mundo ecológico

EdiFlow: data-intensive interactive workflows for visual analytics

International audienceVisual analytics aims at combining interactive data visualization with data analysis tasks. Given the explosion in volume and complexity of scientific data, e.g., associated to biological or physical processes or social networks, visual analytics is called to play an important role in scientific data management. Most visual analytics platforms, however, are memory-based, and are therefore limited in the volume of data handled. Moreover, the integration of each new algorithm (e.g. for clustering) requires integrating it by hand into the platform. Finally, they lack the capability to define and deploy well-structured processes where users with different roles interact in a coordinated way sharing the same data and possibly the same visualizations. We have designed and implemented EdiFlow, a workflow platform for visual analytics applications. EdiFlow uses a simple structured process model, and is backed by a persistent database, storing both process information and process instance data. EdiFlow processes provide the usual process features (roles, structured control) and may integrate visual analytics tasks as activities. We present its architecture, deployment on a sample application, and main technical challenges involved

The antiproton decelerator: AD

A simplified scheme for the provision of antiprotons at 100 MeV/c based on fast extraction is described. The scheme uses the existing production target area and the modified Antiproton Collector Ring in their current location. The physics programme is largely based on capturing and storing antiprotons in Penning traps for the production and spectroscopy of antihydrogen. The machine modifications necessary to deliver batches of 1 107 /min at 100 MeV/c are described. Details of the machine layout and the experimental area in the existing AAC Hall are given

The antiproton decelerator (AD), a simplified antiproton source (feasibility study)

In view of a possible future physics programme concerning antihydrogen a simplified scheme for the provision of antiprotons of a few MeV has been studied. It uses the present target area and the modified Antiproton Collector (AC) in its present location. In this report all the systems are reviewed and their modifications discussed

An Antiproton Decelerator in the CERN PS Complex

The present CERN PS low-energy antiproton complex involves 4 machines to collect, cool, decelerate and supply experiments with up to 1010 antiprotons per pulse and per hour of momenta ranging from 0.1 to 2 GeV/c. In view of a possible future physics programme requiring low energy antiprotons, mainly to carry out studies on antihydrogen, a simplified scheme providing at low cost antiprotons at 100 MeV/c has been studied. It requires only one machine, the present Antiproton Collector (AC) converted into a cooler and decelerator (Antiproton Decelerator, AD) and delivering beam to experiments in the hall of the present Antiproton Accumulator Complex (AAC) [1]. This paper describes the feasibility study of such a scheme [2]

Le Quang (Gérard) : La Guerre américaine d'Indochine (1964-1973)

Hémery Daniel. Le Quang (Gérard) : La Guerre américaine d'Indochine (1964-1973). In: Revue française d'histoire d'outre-mer, tome 61, n°222, 1er trimestre 1974. p. 192

Les sciences hors d'Occident au XXe siècle, série sous la direction de Roland Waast, vol. 2, Les sciences coloniales : figures et institutions, Patrick Petitjean, éd. scientifique

Hémery Daniel. Les sciences hors d'Occident au XXe siècle, série sous la direction de Roland Waast, vol. 2, Les sciences coloniales : figures et institutions, Patrick Petitjean, éd. scientifique. In: Revue française d'histoire d'outre-mer, tome 86, n°324-325, 2e semestre 1999. Pour une histoire du contrôle social dans les mondes coloniaux : justice, prisons, et enfermement de l'espace, sous la direction de Florence Bernault, Pierre Boilley et Ibrahima Thioub. pp. 331-334

Blussé L., Van Der Putten F. P., Vogel H. eds, Pilgrims to the past. Private conversations with historians of European expansion

Hémery Daniel. Blussé L., Van Der Putten F. P., Vogel H. eds, Pilgrims to the past. Private conversations with historians of European expansion. In: Revue française d'histoire d'outre-mer, tome 87, n°328-329, 2e semestre 2000. Grégoire et la cause des Noirs. Combats et projets (1789-1831) pp. 353-355

L'Indochine, les droits humains entre colonisateurs et colonisés, la ligue des Droits de l'Homme (1898-1954)

The French League for Human Rights has early been concerned about the various colonial situations in the empire, particularly in Indochina. The Central Committee of the League and its four Indochinese sections were continuously preoccupied with the violations of the rights of colonial populations, notably in Vietnam. Furthermore, in the internal history of the movement, there was a récurrent fundamental discussion about colonization and Indochina was, with Algeria, one of its major subjects. Basically the League has been on several occasions one of the colonial « think tanks » for French socialist and radical left. But after itscongress of l931, in its majority the League has rejected decolonization prospects until the outset of the Indochina war.Dès ses premières années, la Ligue des Droit de l'Homme a manifesté un intérêt réel pour les différentes situations coloniales de l'empire, tout particulièrement pour l'Indochine. Peu connue, la défense des droits des colonisés fut un souci constant d'abord de son comité central et aussi de ses quatre sections indochinoises. Déplus, l'histoire intérieure de la Ligue a été traversée par un débat de fond sur la colonisation et la politique coloniale, débat dont l'Indochine fut avec l'Algérie l'un des enjeux majeurs, et, dans une mesure importante, la Ligue a été à plusieurs reprises l'un des laboratoires d'idées en la matière de la gauche socialiste et radicale. Mais, après le congrès de 1931, la majorité de la Ligue prend ses distances avec la perspective de la décolonisation, position qu'elle maintient presque jusqu'au terme de la guerre d'Indochine, manquant ainsi l'un des tournants majeurs de l'histoire du monde.Hémery Daniel. L'Indochine, les droits humains entre colonisateurs et colonisés, la ligue des Droits de l'Homme (1898-1954). In: Outre-mers, tome 88, n°330-331, 1er semestre 2001. Outre-mers économiques : de l'Histoire à l'actualité du XXIe siècle. pp. 223-239

Pedrazzani (Jean-Michel) : La France en Indochine. De Catroux à Sainteny

Hémery Daniel. Pedrazzani (Jean-Michel) : La France en Indochine. De Catroux à Sainteny. In: Revue française d'histoire d'outre-mer, tome 61, n°222, 1er trimestre 1974. p. 191