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See detailBergson, les discours de guerre (1914-1918). Propagande et philosophie
Caeymaex, Florence ULg

in Kisukidi, Yala; François, Arnaud (Eds.) Annales bergsoniennes VII : Bergson, l'Europe et la Première guerre mondiale (in press)

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See detailAnabase et Katabase dans les représentations indo-iraniennes archaïques
Swennen, Philippe ULg

in Katábasis (in press)

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See detailOn the Vedic Yajamâna-
Swennen, Philippe ULg

in Acts of the 6th Vedic Workshop (in press)

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See detailSpecialist plant species harbour higher reproductive performances in recently restored calcareous grasslands than in reference habitats
Harzé, Mélanie ULg; Mahy, Grégory ULg; Bizoux, Jean-Philippe ULg et al

in Plant Ecology and Evolution (in press)

Background and aims_Calcareous grasslands are local biodiversity hotspots in temperate regions that suffered intensive fragmentation. Ecological restoration projects took place all over Europe. Their ... [more ▼]

Background and aims_Calcareous grasslands are local biodiversity hotspots in temperate regions that suffered intensive fragmentation. Ecological restoration projects took place all over Europe. Their success has traditionally been assessed using a plant community approach. However, population ecology can also be useful to assess restoration success and to understand underlying mechanisms. Methods_We took advantage of three calcareous grassland sites in Southern Belgium, where reference parcels coexist with parcels restored in the late twentieth century and with more recently restored parcels. We evaluated the colonization stage of three specialist species (Sanguisorba minor, Potentilla neumanniana and Hippocrepis comosa) using occurrence data. We also measured the reproductive traits of 120 individuals per species and compared components of fitness between recent restorations, old restorations and reference habitats. Key results_We found that the occurrence of H. comosa was similar in the different restoration classes, whereas both P. neumanniana and S. minor occurrences decreased from reference grasslands to recent restorations. In contrast, these two latter species exhibited a much higher reproductive output in recent restorations, thanks to an increased production of flowers and seeds. Conclusions_Our results suggest that, during colonization of recently restored calcareous grasslands, favourable environmental conditions, low competition and sufficient genetic mixing may lead to an increased fitness of individuals and a faster population growth than in the reference habitat. These results demonstrate how population processes can increase ecological resilience and highlight the interest of a population-based approach to assess the success of ecological restoration. [less ▲]

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See detailDesign and modelisation of a straylight facility for space optical instrument
Mazy, Emmanuel ULg; Stockman, Yvan ULg; Hellin, Marie-Laure ULg

in SPIE (Ed.) 2012 Optical system Design (in press)

In the framework of instrument calibration, straylight issues are a critical aspect that can deteriorate the optical performances of instrument. To cope with this, a new facility is designed dedicated for ... [more ▼]

In the framework of instrument calibration, straylight issues are a critical aspect that can deteriorate the optical performances of instrument. To cope with this, a new facility is designed dedicated for in-field and far field straylight characterization: up to 10-8 for in-field and up to 10-10 for far field straylight in the visible to NIR spectral ranges. Moreover, from previous straylight test performed at CSL, vacuum conditions are needed for reaching the 10-10 rejection requirement mainly to avoid air/dust diffusion. The major constrains are to design a straylight facility either for in-field and out-field straylight measurements. That requires high dynamic range at source level and a high radiance point source allowing small diverging collimated beam. Moreover, the straylight facility has to be implemented into a limited envelope and has to be built with vacuum compatible materials and black coating. As checking the facility performance requires an instrument better than the facility itself, that is no easy to find, so that the performances have been estimated through a modelisation into a non sequential optical software. This modelisation is based on CAD importation of mechanical design, on BRDF characteristics of black coating and on statistical averaging of ray tracing at instrument entrance. [less ▲]

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See detailDiscrimination of deciduous tree species from time series of unmanned aerial system imagery
Lisein, Jonathan ULg; Michez, Adrien ULg; Claessens, Hugues ULg et al

in PLoS ONE (in press)

Technology advances can revolutionize Precision Forestry by providing accurate and fine forest information at tree level. This paper addresses the question of how and particularly when Unmanned Aerial ... [more ▼]

Technology advances can revolutionize Precision Forestry by providing accurate and fine forest information at tree level. This paper addresses the question of how and particularly when Unmanned Aerial System (UAS) should be used in order to efficiently discriminate deciduous tree species. A time series of high resolution UAS imagery was collected to cover the growing season from leaf flush to leaf fall. Full benefit was taken of the temporal resolution of UAS acquisition, one of the most promising features of small drones. The disparity in forest tree phenology is at the maximum during early spring and late autumn. But the phenology state that optimized the classification result is the one that minimizes the spectral variation within tree species groups and, at the same time, maximizes the phenologic differences between species. Sunlit tree crowns (5 deciduous species groups) were classified using a Random Forest approach for monotemporal, two-date and three-date combinations. The end of leaf flushing was the most efficient single-date time window. Multitemporal datasets definitely improve the overall classification accuracy. But single-date high resolution orthophotomosaics, acquired on optimal time-windows, result in a very good classification accuracy (overall out of bag error of 16%). [less ▲]

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See detailLe relief de Neumagen et les bibliothèques antiques
Marganne, Marie-Hélène ULg

in Capasso, Mario; De Nonno, Mario (Eds.) Scritti in memoria di Paolo Radiciotti (in press)

Mise en contexte du relief de Neumagen aujourd'hui disparu représentant une bibliothèque avec des rouleaux de papyrus et recherches sur les circonstances de la publication, à Liège, en 1670, par l ... [more ▼]

Mise en contexte du relief de Neumagen aujourd'hui disparu représentant une bibliothèque avec des rouleaux de papyrus et recherches sur les circonstances de la publication, à Liège, en 1670, par l'imprimeur Jean Matthias Hovius, des Antiquitatum et Annalium Trevirensium libri XXV de Ch. Brouwer et J. Masen contenant la gravure de ce relief. [less ▲]

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See detailLe débat sur la véritable nature du corail
Vandersmissen, Jan ULg

in Actes du IXe Congrès de l’Association des Cercles francophones d’Histoire et d’Archéologie de Belgique (in press)

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See detailDébats européens sur les formes de la vie marine au Siècle des Lumières
Vandersmissen, Jan ULg

in Jullien, Vincent; Nicolaidis, Efthymios; Skordoulis, Kostas (Eds.) Europe et sciences modernes, histoire d’un engendrement mutuel (in press)

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See detail« Le rôle des facilitateurs dans la diffusion de normes d’emploi : le cas d’un bureau de chômage belge ».
Beuker, Laura ULg; Orianne, Jean-François ULg

in Meilland, Christelle; Sarfati, François (Eds.) Accompagner vers l'emploi. Quand les dispositifs se mettent en action (in press)

En 2004 a eu lieu une importante réforme concernant la politique d’activation en Belgique : le Plan d’accompagnement des chômeurs (PAC) qui prévoit le renforcement de l’accompagnement des chômeurs ... [more ▼]

En 2004 a eu lieu une importante réforme concernant la politique d’activation en Belgique : le Plan d’accompagnement des chômeurs (PAC) qui prévoit le renforcement de l’accompagnement des chômeurs, effectué par les Services publics de l’emploi (SPE), la mise en place de la procédure d’activation du comportement de recherche d’emploi, effectuée par l’Office national de l’emploi (Onem), ainsi que l’échange systématique de données entre les SPE régionaux et le Fédéral. Désormais, des agents, dénommés facilitateurs, sont spécifiquement chargés de l’évaluation du comportement de recherche d’emploi des chômeurs. Lors des entretiens d’évaluation, l’indemnisation des chômeurs est en jeu. Si la procédure d’évaluation est clairement définie par un cadre règlementaire, la décision, quant à elle, résulte d’un travail d’interprétation qu’effectue l’agent en situation de face à face avec le demandeur d’emploi (DE). Nous tenterons de décrire l’activité de jugement des facilitateurs et montrerons que la décision de ces derniers n’est ni totalement arbitraire, ni totalement déterminée par la réglementation : elle résulte de l’interaction avec le chômeur et de la mobilisation d’une multitude d’appuis conventionnels de l’action (Dodier, 1993). Nous montrerons que ces agents sont aussi des « pourvoyeurs » de normes institutionnelles (Benarrosh, 2006). [less ▲]

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See detailDe l'obscurité comme censure. Proust, Muhlfeld, Mallarmé
Durand, Pascal ULg

in Lecler, Yvan; Macé, Laurence; Poulouin, Claudine (Eds.) Censure et Critique (17e-21e siècles) (in press)

Proust’s paper « Contre l’obscurité » [“Against Obscurity”], published in 1896 by La Revue blanche, has been paid back with to rather rough answers : Lucien Muhlfeld’s paper « Sur la clarté » [“About ... [more ▼]

Proust’s paper « Contre l’obscurité » [“Against Obscurity”], published in 1896 by La Revue blanche, has been paid back with to rather rough answers : Lucien Muhlfeld’s paper « Sur la clarté » [“About Clarity”] and « Le Mystère dans les Lettres » by Mallarmé. One of the very few polemical texts of the poet, the latter paper deals with mechanisms of poetical meaning and reciprocal adjustment of both the literary text and his reader. Three kinds of censorship are at stake here. Censorship by the obscurity (Proust). Censorship of the obscurity (Muhlfeld). Censorship with and for the sake of obscurity (Mallarmé). The whole controversy being placed under the very sign of lecture and critical evaluation. [less ▲]

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See detailConcentration, Activity and Biochemical Characterization of Myeloperoxidase in Fresh and Post-thaw equine semen and their Implication on Freezability
Ponthier, Jérôme ULg; Franck, Thierry ULg; Parrilla Hernandez, Sonia ULg et al

in Reproduction in Domestic Animals (in press)

Myeloperoxidase (MPO) is a pro-oxidant enzyme associated with decreased motility in thawed equine semen. This study aimed to describe MPO concentration, activity and subunits in raw and thawed semen and ... [more ▼]

Myeloperoxidase (MPO) is a pro-oxidant enzyme associated with decreased motility in thawed equine semen. This study aimed to describe MPO concentration, activity and subunits in raw and thawed semen and to correlate these data with motilities in raw and thawed semen. Semen samples from five stallions were collected four times. Motilities were assessed in raw and thawed semen. MPO assays were performed in raw seminal plasma, raw sperm-rich pellet and thawed semen. Total and active MPO concentrations were, respectively, assayed by enzyme-linked immunosorbent assay and specific immunological extraction followed by enzymatic detection. MPO subunits present in semen were characterized by Western 3 blot. Purified active MPO was added in PBS and freezing extender to control its activity during freezing procedure. Differences between medians were determined using Kruskal– Wallis test, and correlations were determined using Spearman’s test for nonparametric data. Active MPO concentration was low in seminal plasma and thawed semen, but high in pellet (p = 0.0058), as the opposite relation was observed for total MPO concentration (p < 0.0001). In seminal plasma and post- thaw semen, inactive 86-kDa MPO precursor was mainly observed. Purified MPO activity was decreased in the extender (p = 0.0286). MPO activity in pellet was highly correlated with thawed progressive motility (r = 􏰑0.5576, p = 0.0086). Inac- tive MPO precursor and unknown low molecular weight inactive MPO precursor subunits explain low MPO activity in semen. Major MPO activity was observed in pellet, and post- thaw loss of activity is partially explained by MPO inactiva- tion in extender. Thawed semen motility was negatively correlated with MPO activity in pellet, becoming a potential freezability predictor. [less ▲]

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See detailLe développement de la compétence scripturale en FLS/FLE à l'université à l'aide des TIC : perceptions, pratiques et pistes d'exploitation
Dezutter, Olivier; Bleys, Françoise; Poirier, Vicky et al

in Les Centres de langues et la mise en œuvre des politiques linguistiques dans l’enseignement supérieur : Enseignement – Recherche - Mobilités (in press)

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See detailMinor compounds and oxidative stability of mono-varietal virgin olive oils produced in eastern of Morocco
Mansouri, Farid; Benmoumen, Abdessamad; Richard, Gaetan ULg et al

in Food Chemistry (in press)

The aim of this study is to characterize monovarietal virgin olive oils (VOOs) of new high-density plantings system of three cultivars (Arbequina, Arbosana and Koroneiki) which have been recently ... [more ▼]

The aim of this study is to characterize monovarietal virgin olive oils (VOOs) of new high-density plantings system of three cultivars (Arbequina, Arbosana and Koroneiki) which have been recently introduced in the eastern mediterranean region of Morocco. In this study, we have also conducted comparison between those monovarietal VOOs and olive oil of the local olive cultivar Picholine marocaine. Monovarietal VOOs characterization has been carried out by analysing several parameters, including quality index and olive oil stability to oxidation. Significant differences between the analysed olive oils were highlighted. They depend on cultivars and technological conditions of processing. We have noticed that Koroneiki olive oil have higher content of phenols (459.48 mg kg-1) and have the best value of oxidative stability (93.16 h). On the other hand Arbrosana’s VOO has low content of total phenols (260.85 mg kg-1) but it was distinguished by its higher content of alpha-tocopherol (460.07 mg kg-1). In addition, ten phenolic compounds present in virgin olive oils, were identified and quantitatively assessed by HPLC. Hydroxytyrosol, tyrosol, luteoline, pinoresinol and apigenin were the main phenolic compounds in those analyzed monovarietal VOOS. [less ▲]

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See detailTien Shan geohazards database: Earthquakes and landslides
Havenith, Hans-Balder ULg; Strom, Alexander; Torgoev, Isakbek et al

in Geomorphology (in press)

In this paper we present new and review already existing landslide and earthquake data for a large part of the Tien Shan, Central Asia. For the same area, only partial databases for sub-regions have been ... [more ▼]

In this paper we present new and review already existing landslide and earthquake data for a large part of the Tien Shan, Central Asia. For the same area, only partial databases for sub-regions have been presented previously. They were compiled and new data were added to fill the gaps between the databases. Major new inputs are products of the Central Asia Seismic Risk Initiative (CASRI): a tentative digital map of active faults (even with indication of characteristic or possible maximum magnitude) and the earthquake catalogue of Central Asia until 2009 that was now updated with USGS data (to May 2014). The new compiled landslide inventory contains existing records of 1600 previously mapped mass movements and more than 1800 new landslide data. Considering presently available seismo-tectonic and landslide data, a target region of 1200 km (E–W) by 600 km (N–S) was defined for the production of more or less continuous geohazards information. This target region includes the entire Kyrgyz Tien Shan, the South-Western Tien Shan in Tajikistan, the Fergana Basin (Kyrgyzstan, Tajikistan and Uzbekistan) as well as the Western part in Uzbekistan, the North-Easternmost part in Kazakhstan and a small part of the Eastern Chinese Tien Shan (for the zones outside Kyrgyzstan and Tajikistan, only limited information was available and compiled)... [less ▲]

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See detailLe français – sur objectifs universitaires – dans les politiques linguistiques et les centres de langues des universités marocaines : état d’une réflexion et esquisse d’un programme
Defays, Jean-Marc ULg; Jaafar, Khalid

in Defays, Jean-Marc (Ed.) Vingt ans de FLE. Faits et gestes de la didactique du français langue étrangère et seconde de 1995 à 2015 - Tome 2 : Contextualisations (in press)

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