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See detailHazard and Risk Related to Earthquake-Triggered Landslides
Havenith, Hans-Balder ULg; Fan, X.; Torgoev, A.

in Engineering Geology for Society and Territory-Volume 2 (2015)

Abstract This paper first analyses how important earthquake-induced landslide hazards are compared to other geohazards at world-wide scale. Further, we will outline where these hazards may have the ... [more ▼]

Abstract This paper first analyses how important earthquake-induced landslide hazards are compared to other geohazards at world-wide scale. Further, we will outline where these hazards may have the strongest impacts—at regional and local scale. In this regard, we consider the short-and long-term effects of geological, tectonic, climatic and morphological conditions. Hazard and risk related to these processes will also be analysed on the basis of a series of case histories: eg, the 1920 Haiyuan earthquake-landslide disaster in China. A ... [less ▲]

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See detailLandslide Susceptibility Mapping with Data Mining Methods—a Case Study from Maily-Say, Kyrgyzstan
Braun, A.; Fernandez-Steeger, T.; Havenith, Hans-Balder ULg et al

in Engineering Geology for Society and Territory-Volume 2 (2015)

Abstract: Multiple factors, such as geology, high mountain topography, seismic activity, climatic conditions and mining activities cause significant landslide hazard in the region around Maily-Say ... [more ▼]

Abstract: Multiple factors, such as geology, high mountain topography, seismic activity, climatic conditions and mining activities cause significant landslide hazard in the region around Maily-Say, Kyrgyzstan. To assess the landslide susceptibility a database containing landslide information and geological, morphological and hydrological parameters associated with landslide occurrence was established and analyzed with different data mining algorithms. The most promising results were achieved with an Artificial Neural ... [less ▲]

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See detailValidation and test cases for a free surface PSH model
Goffin, Louis ULg; Erpicum, Sébastien ULg; Dewals, Benjamin ULg et al

in Advances in hydroinformatics - Simhydro 2014 (2015)

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See detailThe EChO science case
Tinetti, Giovanna; Drossart, Pierre; Eccleston, Paul et al

in ArXiv e-prints (2015), 1502

The discovery of almost 2000 exoplanets has revealed an unexpectedly diverse planet population. Observations to date have shown that our Solar System is certainly not representative of the general ... [more ▼]

The discovery of almost 2000 exoplanets has revealed an unexpectedly diverse planet population. Observations to date have shown that our Solar System is certainly not representative of the general population of planets in our Milky Way. The key science questions that urgently need addressing are therefore: What are exoplanets made of? Why are planets as they are? What causes the exceptional diversity observed as compared to the Solar System? EChO (Exoplanet Characterisation Observatory) has been designed as a dedicated survey mission for transit and eclipse spectroscopy capable of observing a large and diverse planet sample within its four-year mission lifetime. EChO can target the atmospheres of super-Earths, Neptune-like, and Jupiter-like planets, in the very hot to temperate zones (planet temperatures of 300K-3000K) of F to M-type host stars. Over the next ten years, several new ground- and space-based transit surveys will come on-line (e.g. NGTS, CHEOPS, TESS, PLATO), which will specifically focus on finding bright, nearby systems. The current rapid rate of discovery would allow the target list to be further optimised in the years prior to EChO's launch and enable the atmospheric characterisation of hundreds of planets. Placing the satellite at L2 provides a cold and stable thermal environment, as well as a large field of regard to allow efficient time-critical observation of targets randomly distributed over the sky. A 1m class telescope is sufficiently large to achieve the necessary spectro-photometric precision. The spectral coverage (0.5-11 micron, goal 16 micron) and SNR to be achieved by EChO, thanks to its high stability and dedicated design, would enable a very accurate measurement of the atmospheric composition and structure of hundreds of exoplanets. [less ▲]

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See detailAphid species and associated natural enemies in field crops: what about the invasive ladybird Harmonia axyridis (Coleoptera: Coccinellidae)?
Vandereycken, Axel ULg; Durieux, Delphine ULg; Joie, Emilie ULg et al

in Entomologie Faunistique = Faunistic Entomology (2015), 68

Following the introduction in the 80's of the invasive coccinellid species Harmonia axyridis (Pallas) in Europe, several studies have begun to focus on the interactions with other aphid predator species ... [more ▼]

Following the introduction in the 80's of the invasive coccinellid species Harmonia axyridis (Pallas) in Europe, several studies have begun to focus on the interactions with other aphid predator species. In this study, aphids and associated predators were sampled to determine their relative abundance in four agricultural crops (broad bean, corn, potato, and wheat) in Belgium during 2010 and 2011. The Moericke trap was used to quantify the mean number of aphids and aphid predators from May to September in both years. A total of 28 aphid species and 21 aphidophagous species were observed. In both years, H. axyridis was among the most abundant aphidophagous predators in all four crops, and was the second most abundant coccinellid species after Coccinella septempunctata L. The community of aphidophagous species was similar across all four inventoried crops. However, the highest population densities of this alien species were recorded in broad bean and potato crops, which also hosted the highest aphid population densities. In conclusion, this study demonstrates that the communities of aphid predators are highly diversified in the agroecosystems, despite the high occurrence of H. axyridis, an introduced predator that has become well established in this environment. [less ▲]

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See detailCaryl Phillips’s drama: Liminal fiction under construction?
Ledent, Bénédicte ULg

in Journal of Postcolonial Writing (2015), 51(1), 84-94

Most of the existing criticism on Caryl Phillips deals with his novels or his essays. His plays, which were for the most part written in the 1980s, have received comparatively little attention. This ... [more ▼]

Most of the existing criticism on Caryl Phillips deals with his novels or his essays. His plays, which were for the most part written in the 1980s, have received comparatively little attention. This article argues that Phillips’s dramatic production should be examined closely because it contains in a nutshell some of the themes and characters that recur in his more mature work and therefore form the backbone of his world vision. Such a comparative approach helps to highlight Phillips’s artistic consistency and his ability to give different forms to similar concerns. More specifically, its aim is to show to what extent Phillips’s novel In the Falling Snow (2009) is a liminal text that is in fact built upon the preoccupations at the heart of his early plays, most notably Strange Fruit (1981), Where There Is Darkness (1982) and The Shelter (1983). [less ▲]

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See detailLa terminologie latine de la traduction
Rochette, Bruno ULg

in Aussant, Emilie (Ed.) La traduction dans l'histoire des idées linguistiques. Représentations et pratiques (2015)

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See detailWhich psychological factors influence Internet addiction? Evidence through an integrative model
Burnay, Jonathan ULg; Billieux, Joël; Blairy, Sylvie ULg et al

in Computers in Human Behavior (2015), 43

Since the appearance of Internet, several preoccupations have appeared as a result, with Internet addiction being one of the most common. The goals of the present study were two-fold. First, to examine ... [more ▼]

Since the appearance of Internet, several preoccupations have appeared as a result, with Internet addiction being one of the most common. The goals of the present study were two-fold. First, to examine which psychological factors are relevant to explain Internet addiction, including impulsivity, passion and social provision. Second, to incorporate all these factors into an integrative model. Based on multiple regressions and path analysis, results revealed a positive relation between Internet addiction and specific impulsivity components (lack of perseverance, urgency) and obsessive passion. Moreover, positive relations were observed between obsessive passion and reassurance of worth, opportunity for nurturance, sensation seeking and harmonious passion. In other words, Internet addiction is related to obsessive passion, but is explained by different psychological factors. Accordingly, both Internet addiction and obsessive passion can be viewed as two important and complementary facets of problematic Internet use. [less ▲]

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See detailCombining satellite, aerial and ground measurements to assess forest carbon stocks in Democratic Republic of Congo
Beaumont, Benoît; Bouvy, Alban; Stephenne, Nathalie et al

in Geophysical Research Abstracts, Vol. 17, EGU2015-4765-2, 2015 (2015)

Monitoring tropical forest carbon stocks changes has been a rising topic in the recent years as a result of REDD+ mechanisms negotiations. Such monitoring will be mandatory for each country willing to ... [more ▼]

Monitoring tropical forest carbon stocks changes has been a rising topic in the recent years as a result of REDD+ mechanisms negotiations. Such monitoring will be mandatory for each country willing to benefit from these financial incentives in the future. Aerial and satellite remote sensing technologies offer cost advantages in implementing large scale forest inventories. Despite the recent progress made in the use of airborne LiDAR for C stocks estimation, no widely operational and cost effective method has yet been delivered for central Africa forest monitoring. Within the Maï Ndombe region of DRC, the EO4REDD project develops a method combining satellite, aerial and ground measurements. This combination is done in three steps: [1] mapping and quantifying forest cover changes using an object-based semi-automatic change detection (deforestation and forest degradation) methodology based on very high resolution satellite imagery (RapidEye), [2] developing an allometric linear model for above ground biomass measurements based on dendrometric parameters (tree crown areas and heights) extracted from airborne stereoscopic image pairs and calibrated using ground measurements of individual trees on a data set of 18 one hectare plots and [3] relating these two products to assess carbon stocks changes at a regional scale. Given the high accuracies obtained in [1] (> 80% for deforestation and 77% for forest degradation) and the suitable, but still to be improved with a larger calibrating sample, model (R2 of 0.7) obtained in [2], EO4REDD products can be seen as a valid and replicable option for carbon stocks monitoring in tropical forests. Further improvements are planned to strengthen the cost effectiveness value/REDD+ suitability in the 2nd phase of EO4REDD. This 2nd phase will include [A] specific model developments per forest type; [B] measurements of afforestation, reforestation and natural regeneration processes and [C] study of Sentinel data series potential use. [less ▲]

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See detailCondições Semióticas da Repetição
Lindenberg Lemos, Carolina ULg

Doctoral thesis (2015)

Emanating from different areas of the human sciences, repetition was given a central role in this thesis of semiotic inclination. It is a widespread phenomenon in all fields of human activity and ... [more ▼]

Emanating from different areas of the human sciences, repetition was given a central role in this thesis of semiotic inclination. It is a widespread phenomenon in all fields of human activity and, particularly, in texts. The optional character of certain repetitions in texts brings about the problem of its function, since, in certain cases, it seems to act directly on the rhythm of the content and the flow of entrances and exits of the phenomenal field. This regulation of the rhythm divides the research into two fronts. On the one hand, the rhythmic effect points to an underlying structure. In that sense, one can ask: what is the configuration of such structure? In what way is repetition part of it? Or even, what is its place in the semiotic model? On the other hand, repetition seems to involve a certain degree of contradiction: in what way can a phenomenon that brings no novelty, only the resumption of the same, sometimes create an effect of tension or surprise? In order to answer these questions, we undertake the revision of the role of repetition in neighboring fields: rhetoric and a specific trend in linguistics. This discussion has allowed us to detect a few insufficiencies in these approaches that may be answered by semiotics. From the semiotic perspective, we have explored the place occupied by repetition, by opposing it to concepts such as identification, text, language and to the notion of semiotics itself. Once the position of repetition in the text is established, we move on to note and discuss the textual conditions necessary to the occurrence of relevant repetitions. In addition to identification, the notion of salience, based on the opposition between figure and ground, revealed itself to be central to the explanation of the phenomenon. Finally, linearity has also proven relevant, which allowed us to re-discuss its theoretical status as one possible manifestation of the underlying syntagmatic structure. Having outlined the conditions for repetition, we have started an investigation into the somewhat contradictory effects we had observed in repetitive incidents. We saw that repetition belongs to the order of extent – it is counted, not measured – and, in being so, it is a tool for the manifestation of the rhythm of the content that is presupposed by it. In these terms, repetition is subordinated to the intensive sub-dimensions: tempo and tonicity. To ensure the relevance of our arguments, we studied repetition within some selected objects, where it is made to serve of the text. Finally, the analysis of these objects shed light on the relations between repetition and the concept of aspect, and three styles of textual progression related to repetition were confirmed: circular, linear and spiraling. This path of investigation has shown us the terms which repetition is tied to and the way in which it manifests an underlying structure. It has also revealed that such structure not only explains but also generates the variations in rhythm and tempo that are felt through repetition. The apparent contradictions of the effects of repetition are explained by the very epistemological bases of the field. The analytical and relational aspects of semiotics are the basis for repetitive construction, which, without adding any new information, may lead the enunciatee to tension, climax and surprise. [less ▲]

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See detailThe prediction of fund failure through performance diagnostics
Cogneau, Philippe ULg; Hübner, Georges ULg

in Journal of Banking and Finance (2015), 50

Using an international database featuring 1624 mutual funds over 15 years, this paper analyses the joint abilities of performance measures to predict subsequent fund failure. We examine the probability of ... [more ▼]

Using an international database featuring 1624 mutual funds over 15 years, this paper analyses the joint abilities of performance measures to predict subsequent fund failure. We examine the probability of disappearance over a time window, and expected fund survival time, and study the circumstances of a fund’s disappearance, its currency and domicile. By combining relevant measures, fund failure appears to a significant extent predictable, more than with single classical measures. Survivorship predictability has significant economic value. Such evidence suggests that past performance does not only influence investors’ perception of fund quality, but also reflects managers’ ability to sustain performance. [less ▲]

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See detailThe Harmonic Balance Method for Bifurcation Analysis of Nonlinear Mechanical Systems
Detroux, Thibaut ULg; Renson, Ludovic ULg; Masset, Luc ULg et al

in Proceedings of the SEM IMAC XXXIII (2015)

Because nowadays structural engineers are willing to use or at least understand nonlinearities instead of simply avoiding them, there is a need for numerical tools performing analysis of nonlinear large ... [more ▼]

Because nowadays structural engineers are willing to use or at least understand nonlinearities instead of simply avoiding them, there is a need for numerical tools performing analysis of nonlinear large-scale structures. Among these techniques, the harmonic balance (HB) method is certainly one of the most commonly used to study finite element models with reasonably complex nonlinearities. However, in its classical formulation the HB method is limited to the approximation of periodic solutions. For this reason, the present paper proposes to extend the method to the detection and tracking of codimension-1 bifurcations in the system parameters space. As an application, the frequency response of a spacecraft is studied, together with two nonlinear phenomena, namely quasiperiodic oscillations and detached resonance curves. This example illustrates how bifurcation tracking using the HB method can be employed as a promising design tool for detecting and eliminating such undesired behaviors. [less ▲]

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See detailAlain au prisme de l’ontologie phénoménologique. Relectures croisées d'Alain et de Sartre
Cormann, Grégory ULg

in Depraz, Natalie (Ed.) Alain philosophe rouennais (2015)

Parmi les grands représentants de la « génération 1905 », selon l’expression de J.-F. Sirinelli, Sartre passe pour celui qui a refusé l’enseignement d’Alain alors que des penseurs aussi différents qu’Aron ... [more ▼]

Parmi les grands représentants de la « génération 1905 », selon l’expression de J.-F. Sirinelli, Sartre passe pour celui qui a refusé l’enseignement d’Alain alors que des penseurs aussi différents qu’Aron, Canguilhem ou Hyppolite acceptaient, au moins pour un temps, l’enseignement du maître. Cette appréciation expéditive ne fait droit ni à ce qu’on sait aujourd’hui des premières tentatives philosophiques de Sartre ni au travail inlassable de relecture d’Alain que Sartre aura mené, en sous-main, tout au long de sa trajectoire intellectuelle. Dans cet article, on procédera dès lors, d’une part, au repérage de l’influence d’Alain dans une série de textes, souvent posthumes, qui passent pour des textes préparatoires aux grandes œuvres. On montrera, d’autre part, que cette influence d’Alain s’insinue jusqu’au cœur de l’ontologie phénoménologique de Sartre, dans L’être et le néant, puis dans les prolongements que Sartre y a donnés dans ses psychanalyses existentielles. Au total, on montrera que la plupart des interprétations récentes de Sartre (Coorebyter, Breeur, Gély, Giovannangeli, J. Simont, etc.), depuis une dizaine d’années, se resserrent autour de la relation largement insoupçonnée que l’ontologie phénoménologique sartrienne entretient avec la pensée d’Alain. [less ▲]

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See detailIntegrating hydrological features and 1 genetically validated occurrence data in occupancy 2 modeling of an endemic and endangered semi‐aquatic mammal species, Galemys pyrenaicus. 3 4
Charbonnel, Anaïs; Buisson, Laetitia; Biffi, Marjorie et al

in Biological Conservation (2015), Sous Presse

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See detailLa ‘Commendatio animæ’ dans les littératures romanes des origines
Valenti, Gianluca ULg

in Draelants, Isabelle; Balouzat-Loubet, Christelle (Eds.) La formule au Moyen Âge, II / Formulas in Medieval Culture, II. Actes du colloque international / Proceedings of the International Conference (2015)

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See detailVoyage(s) à travers le thymus
Geenen, Vincent ULg

Book published by Presses ULg (2015)

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See detailComparative biogeochemistry-ecosystem-human interactions on dynamic continental margins
Levin, Lisa A.; Liu, Kon-Kee; Kay-Christian, Emeis et al

in Journal of Marine Systems (2015), 141

The ocean’s continental margins face strong and rapid change, forced by a combination of direct human activity, anthropogenic CO2-induced climate change, and natural variability. Stimulated by discussions ... [more ▼]

The ocean’s continental margins face strong and rapid change, forced by a combination of direct human activity, anthropogenic CO2-induced climate change, and natural variability. Stimulated by discussions in Goa, India at the IMBER IMBIZO III, we (1) provide an overview of the drivers of biogeochemical variation and change on margins, (2) compare temporal trends in hydrographic and biogeochemical data across different margins (3) review ecosystem responses to these changes, (4) highlight the importance of margin time series for detecting and attributing change and (5) examine societal responses to changing margin biogeochemistry and ecosystems. We synthesize information over a wide range of margin settings in order to identify the commonalities and distinctions among continental margin ecosystems. Key drivers of biogeochemical variation include long-term climate cycles, CO2-induced warming, acidification, and deoxygenation, as well as sea level rise, eutrophication, hydrologic and water cycle alteration, changing land use, fishing, and species invasion. Ecosystem responses are complex and impact major margin services including primary production, fisheries production, nutrient cycling, shoreline protection, chemical buffering, and biodiversity. Despite regional differences, the societal consequences of these changes are unarguably large and mandate coherent actions to reduce, mitigate and adapt to multiple stressors on continental margins. [less ▲]

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See detailThe neural basis of temporal order processing in past and future thought
D'Argembeau, Arnaud ULg; Jeunehomme, Olivier ULg; Majerus, Steve ULg et al

in Journal of Cognitive Neuroscience (2015), 27

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See detailDilthey et l'empirisme psychologique
Dewalque, Arnaud ULg

in Camilleri, Sylvain; Fagniez, Guillaume (Eds.) Dilthey et l'histoire (2015)

Je discute ici le projet diltheyen d'une "fondation psychologique des sciences de l'esprit". Je suggère que ce projet peut être rapproché d’un certain programme épistémologique baptisé "empirisme ... [more ▼]

Je discute ici le projet diltheyen d'une "fondation psychologique des sciences de l'esprit". Je suggère que ce projet peut être rapproché d’un certain programme épistémologique baptisé "empirisme psychologique". L’hypothèse qui se trouve à la base de l’empirisme psychologique est la suivante : l’expérience interne, psychologique, est la source des concepts au moyen desquels nous pouvons penser et connaître le monde. Après avoir brièvement reconstruit le programme diltheyen en ce sens, j'examine deux objections qui ont été soulevées contre lui: l'objection néokantienne (Windelband, Rickert) et l'objection psychologique (Ebbinghaus, Stumpf). La seconde, selon moi, met en évidence une difficulté réelle du projet de Dilthey: la "connexion structurelle de la vie" dans sa totalité peut difficilement être considérée comme "donnée" dans l'expérience interne, ainsi que l'affirme Dilthey. Je soutient donc que le programme de l'empirisme psychologique peut être poursuivi à condition de le débarrasser de cette thèse problématique. [less ▲]

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