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See detailMigration and Cultural Pluralism in Europe : a Threat for the Nation-States ?
Martiniello, Marco ULg

Scientific conference (1992, October 13)

Detailed reference viewed: 20 (2 ULg)
See detail"Migration and Transnationalism"
Martiniello, Marco ULg

Scientific conference (1998, July 26)

Detailed reference viewed: 2 (0 ULg)
See detailMigration and Transportation of Ethnic Conflicts
Perrin, Nathalie ULg

Scientific conference (2010, February 24)

Detailed reference viewed: 17 (0 ULg)
Peer Reviewed
See detailMigration associated with land grabbing
Vigil Diaz Telenti, Sara ULg

Conference (2015, July)

Detailed reference viewed: 23 (0 ULg)
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See detailMigration behaviour study of charged and uncharged compounds in micellar electrokinetic chromatography systems containing various proportions of SDS micelles and acetonitrile as organic modifier
Lamalle, Caroline ULg; Servais, Anne-Catherine ULg; Crommen, Jacques ULg et al

Poster (2012)

In 1984, Terabe and co-workers introduced a modified version of CZE, called micellar electrokinetic chromatography (MEKC), in which surfactant-formed micelles are included in the running buffer providing ... [more ▼]

In 1984, Terabe and co-workers introduced a modified version of CZE, called micellar electrokinetic chromatography (MEKC), in which surfactant-formed micelles are included in the running buffer providing a two phases chromatographic system for the separation of neutral compounds. Depending on their hydrophobicity, compounds can interact with the core of the micelles. Many MEKC methods have been described for the separation of neutral and basic compounds and for various applications. However, the migration behaviour of cationic, anionic and neutral analytes mixture is not well established regarding to the surfactant concentration and to the proportion of organic solvent in the background electrolyte (BGE). With such a mixture, it is important to remember that the separation of charged solutes in MEKC involves a combination of chromatographic and electrophoretic separation mechanisms. Moreover, it is worth noting that with charged analytes, two kinds of interactions with the micelles may occur; not only with the hydrophobic core but also with the head groups of the micelles through electrostatic interactions. In systems in which the surfactant has an opposite charge to that of the solute, ion pairing may occur. On the contrary, when a solute and the surfactant have similar charges, coulombic forces may cause the repulsion of these molecules. The goal of this study is to improve our understanding of the migration behaviour of charged and uncharged analytes in MEKC systems. With this aim in view, effective mobility (electrophoretic mobility under the influence of micelles) of neutrals, cations and anions were mesured at neutral, basic and acidic pH with BGE containing different SDS concentrations and ACN proportions. This study is also focused on the changes of migration order between CZE and MEKC systems using different BGE compositions. In the MEKC systems investigated in the study, SDS concentration and ACN proportion show a tremendous effect on the effective mobilities and migration order of the model compounds. While anions interact very weakly with SDS micelles, neutrals and cations interact with SDS through hydrophobic and ionic bonds. These interactions become stronger with the increase of SDS concentration and weaker with high ACN proportion. With 20 mM of SDS in the BGE, CZE behaviour is observed till 40% of ACN. But, when the SDS concentration is high and the ACN proportion is low, the migration order of analytes is reversed compared to CZE: EOF first, then the anions, followed by the neutrals and finally the cations. The migration order inside each group (cations, neutrals and anions) depends on the hydrophobicity of the analytes. Different organic solvents were also investigated to study the ion-pair formation. Those observations confirm the interest of using MEKC not only for the separation of neutral compounds but also variously charged analytes. [less ▲]

Detailed reference viewed: 37 (2 ULg)
See detailMigration between States and Markets
Withol de Wenden, Catherine; Martiniello, Marco ULg; Entzinger, Han

Book published by Ashgate (2004)

Detailed reference viewed: 29 (4 ULg)
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See detailMigration between States and Markets (Conference Report)
Martiniello, Marco ULg

in International Migration Review (2002), 36(2), 593-596

Detailed reference viewed: 15 (2 ULg)
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See detailLa migration de remontée de l’anguille dans le bassin de la Meuse
Philippart, Jean-Claude ULg; Ovidio, Michaël ULg

Scientific conference (2007, November 07)

Detailed reference viewed: 27 (1 ULg)
Peer Reviewed
See detailMigration des cellules médullaires vers le thymus chez les souris C57BL/Ka soumises a une irradiation fractionnée
Humblet, Chantal ULg; Defresne, Marie-Paule ULg; Greimers, Roland ULg et al

in Comptes Rendus des Séances de la Société de Biologie et de ses Filiales (1987), 181(4), 426-31

Fractionated whole body X-irradiation (4 X 1.75 Gy at weekly intervals) induces a high percentage of thymic lymphomas in C57BL/Ka mice. These tumors develop after a long latency period during which the ... [more ▼]

Fractionated whole body X-irradiation (4 X 1.75 Gy at weekly intervals) induces a high percentage of thymic lymphomas in C57BL/Ka mice. These tumors develop after a long latency period during which the thymic lymphopoiesis is deeply altered. In the present work, we test wether those modifications are due to lack of prothymocyte homing to preleukemic thymuses. Our results show that the preleukemic state of the thymus don't prevent the homing of normal marrow precursors grafted immediately after an irradiation of 4 Gy. Thus the alterations of thymic lymphopoiesis observed after a leukemogenic irradiation are not due to a modification in the thymus receptivity to thymocyte precursors. [less ▲]

Detailed reference viewed: 13 (0 ULg)
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See detailMigration doesn’t have to be a failure to adapt: an escape from environmental determinism
Gemenne, François ULg

in Palutikof, J.; Boulter, S.L.; Ash, A.J. (Eds.) et al Climate Adaptation Futures (2013)

Detailed reference viewed: 38 (4 ULg)
See detailMigration et activitées mafieuses. Ethnographie des pratiques criminelles de migrants italiens en Belgique.
De Biase, Marco ULg

Scientific conference (2014, May 08)

L’objectif de cette recherche consiste à étudier les processus économiques, politiques et sociaux ayant favorisé la diffusion de pratiques criminelles et mafieuses chez certains migrants d’origine ... [more ▼]

L’objectif de cette recherche consiste à étudier les processus économiques, politiques et sociaux ayant favorisé la diffusion de pratiques criminelles et mafieuses chez certains migrants d’origine italienne en Belgique. Nous émettons l’hypothèse que l’apparition de pratiques mafieuses ne se fait pas via l’exportation des activités criminelles sur une « base ethnique » d’un lieu à un autre, mais que ces pratiques se développent à la suite d'une adaptation aux contextes d’immigration où se vérifient toutes les conditions de transformation du parcours d’intégration de certains migrants en un parcours criminel ou mafieux. C’est pour cela que nous proposons un nouveau cadre théorique qui dépasse les interprétations habituelles sur les phénomènes mafieux dans les parcours d’immigration et qui se propose d’étudier le vaste et complexe système de relations dans lequel les forces criminelles s’enracinent. Pour ce faire, nous proposons de nous concentrer sur l’étude du secteur agroalimentaire et de la restauration dans lesquels la criminalité d’origine italienne a beaucoup investi durant les dernières décennies. Par ailleurs, nous proposons une analyse comparée à la société d’origine des migrants, le Sud de l’Italie, afin de comprendre les continuités et les ruptures dans les pratiques mafieuses entre les contextes d’origine des migrants et ceux présents dans les espaces d'immigration. Pour tester les hypothèses, cette recherche se base sur l’étude de la littérature scientifique, les données statistiques de la criminalité, les sources médiatiques, sur quelques dossiers figurant dans les archives judiciaires des tribunaux belges. Mais, la recherche est surtout basée sur une approche ethnographique qui repose sur des recueils biographiques, de récits familiaux et de l'observation participant en travaillant comme agent pour une entreprise d'import/export de produits italiens. [less ▲]

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See detailMigration et déplacements du martin pêcheur Alcedo atthis en Europe
Libois, Roland ULg

in Aves (2011), 48(2), 65-86

Previous publications on the migration and movements of kingfisher s have been limitid to a few countries; there has not been any previous synthesis of the data from the whole of Europe. The present study ... [more ▼]

Previous publications on the migration and movements of kingfisher s have been limitid to a few countries; there has not been any previous synthesis of the data from the whole of Europe. The present study,based on the Euring database, related to the movements of 5991 ringed and recaptured birds. The data were classified according to the status of each individual (pulli, juvenile or adult) as noted at ringing, the time of year (autumn and winter; spring; breeding period), and general geographical area. In the first autumn and winter, half of the pulli remained in the nesting area. Those that did move (between 25 and 250 km) dispersed approximately equally in all directions. The tendency to migrate was most marked among birds born in Sweden. The tendency decreases progressively in the sequence North Europe/Central Europe/ North Western Europe, where only 5 % of birds migrate, moving in a southwesterly direction. Juvenile birds are less mobile (approximately 80 %) than the pulli. Those which do move have the same pattern of dispersion as the pulli. The tendency to migrate is especially marked in North Europe, and is almost non existent in Gread Britain and in the Mediterrannean peninsulas. In springtime, most birds are already nesting, but some migrate towards the N or NE, and some are delayed in their overwintering location. During the nesting period, the ex pulli rarely take over the burrow where they were born, while the majority of juveniles tend to remain in the area where they were first captured. Some adults do change area ot the time, this tendeny being more accentuated among females, while male birds appear to be more attached to their home territory. In subsequent autumns the patterns of dispersion, of distance and of direction of ex juveniles and ex pulli are indistinguishable from those of the first automn. In Sweden the adults migrate, whereas elswhere adults have similar behaviour as juvenile birds; but adults are even more sedentary. [less ▲]

Detailed reference viewed: 107 (7 ULg)
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See detailMigration et environnement : brève introduction à une relation méconnue et souvent négligée
Gemenne, François ULg

in Etopia : Revue d'Economie Politique (2007), 3

Detailed reference viewed: 29 (3 ULg)