Documentário e mal-entendido. Retorno sobre uma primeira filmagem no Brasil

in Stols, Eddy; Mascaro, Luciana; Bueno, Clodoaldo (Eds.) Brasil e Bélgica: Cinco Séculos de Conexões e Interação (in press)

Réexamen du dessin du codex miscellaneus de Montserrat (P. Montserrat inv. nr. 154 = MP³ 2916.41)

in Aegyptus (in press), 90

New interpretation of the drawing of a mythological hero in the 4th Montserrat codex miscellaneus.

The ocean bomb radiocarbon inventory revisited

in Radiocarbon (in press)

Large discrepancies exist among data-based estimates and model reconstructions of the ocean bomb radiocarbon inventory. In order to resolve this gap, it has been proposed that the CO2 piston veloc- ity ... [more ▼]

Large discrepancies exist among data-based estimates and model reconstructions of the ocean bomb radiocarbon inventory. In order to resolve this gap, it has been proposed that the CO2 piston veloc- ity should be revised downward (Sweeney et al., 2007; Müller et al., 2008). Here we compare the transient 14C distributions in the ocean obtained with different formulations of the isotopic ratio commonly used in modeling studies. It is found that both the CO2 increase and the air-sea CO2 flux significantly contribute to the 1990 ocean bomb radiocarbon inventory, by around 10% each. Moreover, these two processes explain more than 25% of the inventory difference be- tween 1974 and 1990. These results imply that, as already argued by Naegler (2009), inventories based on observations which lack infor- mation about CO2 invasion are underestimated. Further, this work allows to gain insight into the reasons for discrepancies among model results. It suggests that while a comprehensive isotopic formulation is needed when addressing the global radiocarbon cycle, a simplified form is more relevant for model calibration and piston velocity assess- ment based on currently available bomb radiocarbon inventories. [less ▲]

On the Number of Abelian Bordered Words

in Lecture Notes in Computer Science (in press)

In the literature, many bijections between (labeled) Motzkin paths and various other combinatorial objects are studied. We consider abelian (un)bordered words and show the connection with irreducible ... [more ▼]

In the literature, many bijections between (labeled) Motzkin paths and various other combinatorial objects are studied. We consider abelian (un)bordered words and show the connection with irreducible symmetric Motzkin paths and paths in Z not returning to the origin. This study can be extended to abelian unbordered words over an arbitrary alphabet and we derive expressions to compute the number of these words. In particular, over a 3-letter alphabet, the connection with paths in the triangular lattice is made. Finally, we study the lengths of the abelian unbordered factors occurring in the Thue--Morse word. [less ▲]

A Balance Equation Determines a Switch in Neuronal Excitability

in PLoS Computational Biology (in press)

We use the qualitative insight of a planar neuronal phase portrait to detect an excitability switch in arbitrary conductance-based models from a simple mathematical condition. The condition expresses a ... [more ▼]

We use the qualitative insight of a planar neuronal phase portrait to detect an excitability switch in arbitrary conductance-based models from a simple mathematical condition. The condition expresses a balance between ion channels that provide a negative feedback at resting potential (restorative channels) and those that provide a positive feedback at resting potential (regenerative channels). Geometrically, the condition imposes a transcritical bifurcation that rules the switch of excitability through the variation of a single physiological parameter. Our analysis of six di erent published conductance based models always nds the transcritical bifurcation and the associated switch in excitability, which suggests that the mathematical predictions have a physiological rel- evance and that a same regulatory mechanism is potentially involved in the excitability and signaling of many neurons. [less ▲]

Genetic analysis of longitudinal measurements of feed intake in Piétrain sire lines

in Journal of Animal Science (in press)

Dendritic cells in Barrett's esophagus carcinogenesis: an inadequate microenvironment for antitumor immunity?

in American Journal of Pathology (in press)

Adult Bone Marrow Neural Crest Stem Cells and Mesenchymal Stem Cells are not able to Replace Lost Neurons in Acute MPTP-lesioned Mice

in PLoS ONE (in press)

Adult bone marrow stroma contains multipotent stem cells (BMSC) that are a mixed population of mesenchymal and neural-crest derived stem cells. Both cells are endowed with in vitro multi-lineage ... [more ▼]

Adult bone marrow stroma contains multipotent stem cells (BMSC) that are a mixed population of mesenchymal and neural-crest derived stem cells. Both cells are endowed with in vitro multi-lineage differentiation abilities, then constituting an attractive and easy-available source of material for cell therapy in neurological disorders. Whereas the in vivo integration and differentiation of BMSC in neurons into the central nervous system is currently matter of debate, we report here that once injected into the striatum of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-treated mice, pure populations of either bone marrow neural crest stem cells (NCSC) or mesenchymal stem cells (MSC) survived only transiently into the lesioned brain. Moreover, they do not migrate through the brain tissue, neither modify their initial phenotype, while no recovery of the dopaminergic system integrity was observed. Consequently, we tend to conclude that MSC/NCSC are not able to replace lost neurons in acute MPTP-lesioned dopaminergic system through a suitable integration and/or differentiation process. Altogether with recent data, it appears that neuroprotective, neurotrophic and anti-inflammatory features characterizing BMSC are of greater interest as regards CNS lesions management. [less ▲]

"How very un-Dominican of him" ou la merveilleuse masculinité d’Oscar Wao

in Banoun, Bernard; Tomiche, Anne; Zapata, Mónica (Eds.) Fictions au masculin (in press)

Dans le cadre de la littérature de l’exil – et spécifiquement dans celui de la littérature de l’exil du Cône Sud –, il a souvent été question de subjectivités entre-deux et de réflexions entre « un aquí y ... [more ▼]

Dans le cadre de la littérature de l’exil – et spécifiquement dans celui de la littérature de l’exil du Cône Sud –, il a souvent été question de subjectivités entre-deux et de réflexions entre « un aquí y un allí » (entre ici et là-bas), une perspective qui a été remise en question suite à l’accélération des mouvements migratoires au tournant des années 2000. Ainsi, selon les théoriciens postcoloniaux de « l’hybridité » comme Homi K. Bhabha ou N. García Canclini, les migrations permettent l’émergence d’individus en constant devenir étant donné qu’ils sont en permanence sous des influences multiples de cultures variées. De plus, notre compréhension des migrations a fortement évolué depuis une quinzaine d’années, on ne parle plus aujourd’hui de relocalisations unidirectionnelles et permanentes mais plutôt de communautés transnationales et de cultures globalisées selon un agencement postcolonial . C’est dans cette optique que je me propose d’observer quelles sont les différentes masculinités issues de la diaspora dominicaine qui sont en confrontation dans le roman de Díaz et, face à ces tensions de genre, en quoi la subjectivité masculine de Oscar Wao est singulière. [less ▲]

Zones d'activité économique en Wallonie : quelles retombées fiscales pour les communes ?

in Revue de Fiscalité Régionale et Locale (in press), 2

Les zones d'activité économique constituent, en Wallonie, un des leviers majeurs à disposition du Gouvernement pour favoriser le développement économique. Leur implantation suscite toutefois de nombreux ... [more ▼]

Les zones d'activité économique constituent, en Wallonie, un des leviers majeurs à disposition du Gouvernement pour favoriser le développement économique. Leur implantation suscite toutefois de nombreux débats au sein des élus locaux. Ces débats sont notamment alimentés par la perception que ces zones génèrent des recettes fiscales très limitées pour les communes. Cette contribution propose une analyse et une mesure des facteurs qui influencent ces recettes et, par conséquent, les choix locaux en matière d'affectation de l'espace. [less ▲]