Multipore zeolites: synthesis and catalytic applications

[EN] In the last few years, important efforts have been made to synthesize so-called "multipore" zeolites, which contain channels of different dimensions within the same crystalline structure. This is a very attractive subject, since the presence of pores of different sizes would favor the preferential diffusion of reactants and products through those different channel systems, allowing unique catalytic activities for specific chemical processes. In this Review we describe the most attractive achievements in the rational synthesis of multipore zeolites, containing small to extra-large pores, and the improvements reported for relevant chemical processes when these multipore zeolites have been used as catalysts.Financial support by the Spanish Government-MINECO through “Severo Ochoa” (SEV 2012-0267), Consolider Ingenio 2010-Multicat, MAT2012-37160, MAT2012-31657 and Intramural-201480I015 is acknowledged.Moliner Marin, M.; Martínez, C.; Corma Canós, A. (2015). Multipore zeolites: synthesis and catalytic applications. Angewandte Chemie International Edition. 54(12):3560-3579. https://doi.org/10.1002/anie.201406344S35603579541

Vladimir Soloviev, La grande controverse et la politique chrétienne (Orient-Occident)

Dejaifve G. Vladimir Soloviev, La grande controverse et la politique chrétienne (Orient-Occident). In: Revue Philosophique de Louvain. Troisième série, tome 53, n°39, 1955. pp. 447-448

L'infraction de coups et blessures volontaires : entre aggravation et excuse

Master [120] en droit, Université catholique de Louvain, 201

Vladimir Soloviev, La grande controverse et la politique chrétienne (Orient-Occident)

Dejaifve G. Vladimir Soloviev, La grande controverse et la politique chrétienne (Orient-Occident). In: Revue Philosophique de Louvain. Troisième série, tome 53, n°39, 1955. pp. 447-448

Ecology and behavior of a palearctic migrant in Africa. The wintering of the winchat Saxicola rubetra (L.) in Zaïre and its winter distribution in Africa

The ecology and behaviour of winchats Saxicola rubetra during their wintering stay in tropical Africa has been studied in the guinean savanna zone of northern Zaïre. Winchats were found to winter both in open savannas and in cultivated fields, apparently filling an empty niche left vacant by resident birds. From late October to late April, they settle on individual territories averaging ca. 4 000 m2. Very little agonistic behaviour was observed, and winchats never sang on such winter territories. Their density averaged 0.8 individual per ha. Throughout the day each bird stayed on one of the 3 to 12 bare perches present on its territory, from which it darted at insect pre

Écologie et comportement d’un migrateur paléarctique, le Traquet tarier Saxicola rubetra (L.) au Zaïre et sa répartition hivernale en Afrique

The ecology and behaviour of winchats Saxicola rubetra during their wintering stay in tropical Africa has been studied in the guinean savanna zone of northern Zaïre. Winchats were found to winter both in open savannas and in cultivated fields, apparently filling an « empty niche » left vacant by resident birds. From late October to late April, they settle on individual territories averaging ca. 4 000 m2. Very little agonistic behaviour was observed, and winchats never sang on such winter territories. Their density averaged 0.8 individual per ha. Throughout the day each bird stayed on one of the 3 to 12 bare perches present on its territory, from which it darted at insect prey. An updated winter distribution map of Saxicola rubetra in Africa is proposed.Dejaifve Pierre-André. Écologie et comportement d’un migrateur paléarctique, le Traquet tarier Saxicola rubetra (L.) au Zaïre et sa répartition hivernale en Afrique. In: Revue d'Écologie (La Terre et La Vie), tome 49, n°1, 1994. pp. 35-52

Conservation de populations d'orme lisse (Ulmus laevis Pall.) en Val de Loire et Val d'Allier : rapport final

[Notes_IRSTEA]Les 23 p. d'annexes (essentiellement des photos aériennes) ne figurent pas dans le fichier joint ; elles sont uniquement dans la version papier disponible à la doc de Nogent [Departement_IRSTEA]Territoires [TR1_IRSTEA]SEDYVINFrom 2004 to 2006, Cemagref and staff of the Saint-Mesmin and Val d'Allier nature reserves undertook a study of the flowering and fruiting of approximately 100 European White Elms in the two reserves. Mortality caused by Dutch elm disease was also recorded. The purpose of the study was to investigate the possibility of a dynamic and long-term conservation programme at the two sites. The study confirmed that many trees were capable of producing large quantities of viable seed, and also indicated the genetic diversity within the observed population (E.g: early- and late-flowering trees). White Elms at the Val d'Allier reserve are being incorporated into French and European genetic conservation networks for the species. Publications have been released to aid a better understanding of the tree and its conservation by the public at large.De 2004 à 2006, le Cemagref et les gestionnaires des Réserves Naturelles de Saint-Mesmin (45) et du Val d'Allier (03) ont réalisé un suivi de la floraison et de la fructification d'environ 100 ormes lisses dans chacune de ces deux réserves. La mortalité causée par la graphiose de l'orme a également été notée. Ces opérations avaient pour but d'évaluer la faisabilité de la conservation dynamique et durable de l'orme lisse dans ces deux sites. La notation de la floraison et de la fructification a permis de vérifier que de nombreux arbres reproducteurs étaient capables de produire de grandes quantités de graines viables. Elle a également fourni des indications sur la diversité génétique des populations observées (ex: arbres à floraison précoce et arbres "tardifs"). La population d'ormes lisses de la RN du Val d'Allier est en cours d'intégration dans les réseaux français et européen de conservation génétique de cette espèce. Des actions de communication ont réalisées pour mieux faire connaitre cette espèce et sa conservation auprès de différents publics