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See detailA combined transmission spectrum of the Earth-sized exoplanets TRAPPIST-1 b and c
de Wit, Julien; Wakeford, Hannah R.; Gillon, Michaël ULg et al

in Nature (in press)

Three Earth-sized exoplanets were recently discovered close to the habitable zone of the nearby ultracool dwarf star TRAPPIST-1. The nature of these planets has yet to be determined, since their masses ... [more ▼]

Three Earth-sized exoplanets were recently discovered close to the habitable zone of the nearby ultracool dwarf star TRAPPIST-1. The nature of these planets has yet to be determined, since their masses remain unmeasured and no observational constraint is available for the planetary population surrounding ultracool dwarfs, of which the TRAPPIST-1 planets are the first transiting example. Theoretical predictions span the entire atmospheric range from depleted to extended hydrogen-dominated atmospheres. Here, we report a space-based measurement of the combined transmission spectrum of the two inner planets made possible by a favorable alignment resulting in their simultaneous transits on 04 May 2016. The lack of features in the combined spectrum rules out cloud-free hydrogen-dominated atmospheres for each planet at 10-$\sigma$ levels; TRAPPIST-1 b and c are hence unlikely to harbor an extended gas envelope as they lie in a region of parameter space where high-altitude cloud/haze formation is not expected to be significant for hydrogen-dominated atmospheres. Many denser atmospheres remain consistent with the featureless transmission spectrum---from a cloud-free water vapour atmosphere to a Venus-like atmosphere. [less ▲]

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See detailL’indemnisation des accidents du travail : justifications et contestations du forfait en France et en Belgique (1ère moitié du XXe siècle)
Bruno, Anne-Sophie; Geerkens, Eric ULg

in Le Roux, Thomas (Ed.) Risques industriels. Savoirs, régulations, politiques d’assistance, fin XVIIe – début XXe siècle (in press)

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See detailWhom do architects design for in design competitions? A case study
Verhulst, Lore; Elsen, Catherine ULg; Heylighen, Ann

in Journal of Design Research (in press)

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See detailPrudence et ruse comme capacités d’action managériale et politique. Le cas des équipes de direction pénitentiaire belges
Dubois, Christophe ULg

in Sociologie (in press), 7(4),

This paper aims at analysing the work of prison management teams. Working in organizations that are mainly "auto-regulated" by prison guards, governors’ teams have to cope, for the last fifteen years ... [more ▼]

This paper aims at analysing the work of prison management teams. Working in organizations that are mainly "auto-regulated" by prison guards, governors’ teams have to cope, for the last fifteen years, with a heightened control exercised by the central administration. This “regulation of control” (Reynaud, 1988) is inter alia justified by the endemic phenomenon of overcrowding and the increasing interdependency between prisons and their environment. Despite the constraints implied by these shifts, prison governors preserve some autonomy through two types of deliberative practice allowing them to influence - marginally and ethically – prison organizations and policies. The first one, called practical wisdom or prudence (Champy, 2012), lies in the subtle bypass of the rules in uncertain situations; the second one, called cunning, or ruse (Lécu, 2013), consists in denouncing the hypocrisy of some political discourses with the help of some external partners. [less ▲]

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See detailBacterial community composition in relation to bedrock type and macrobiota in soils 1 from the Sør Rondane Mountains, East Antarctica
Tytgat, Bjorn; Verleyen, Elie; Sweetlove, Maxime et al

in FEMS Microbiology Ecology (in press)

Antarctic soils are known to be oligotrophic and of having low buffering capacities. It is expected that this is particularly the case for inland high altitude regions. We hypothesized that the bedrock ... [more ▼]

Antarctic soils are known to be oligotrophic and of having low buffering capacities. It is expected that this is particularly the case for inland high altitude regions. We hypothesized that the bedrock type and the presence of macrobiota in these soils enforce a high selective pressure on their bacterial communities. To test this, we analysed the bacterial community structure in 52 soil samples from the western Sør Rondane Mountains (Dronning Maud Land, East Antarctica) using the Illumina MiSeq platform in combination with ARISA fingerprinting. The samples were taken along broad environmental gradients in an area covering nearly 1000 km². Ordination and variation partitioning analyses revealed that the total organic carbon content was the most significant variable in structuring the bacterial communities, followed by pH, electric conductivity, bedrock type and the moisture content, while spatial distance was of relatively minor importance. Acidobacteria (Chloracidobacteria) and Actinobacteria (Actinomycetales) dominated gneiss derived mineral soil samples, while Proteobacteria (Sphingomonadaceae), Cyanobacteria, Armatimonadetes and candidate division FBP dominated soil samples with a high total organic carbon content that were mainly situated on granite derived bedrock. [less ▲]

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See detailBacterial and eukaryotic biodiversity patterns in terrestrial and aquatic habitats in the 1 Sør Rondane Mountains, Dronning Maud Land, East Antarctica
Obbels, Dagmar; Verleyen, Elie; Mano, Marie-José et al

in FEMS Microbiology Ecology (in press)

The bacterial and microeukaryotic biodiversity was studied using pyrosequencing analysis on a 454 GS 29 FLX+ platform of partial SSU rRNA genes in terrestrial and aquatic habitats of the Sør Rondane ... [more ▼]

The bacterial and microeukaryotic biodiversity was studied using pyrosequencing analysis on a 454 GS 29 FLX+ platform of partial SSU rRNA genes in terrestrial and aquatic habitats of the Sør Rondane Mountains, 30 including soils, on mosses, endolithic communities, cryoconite holes, and supraglacial and subglacial 31 meltwater lenses. This inventory was complemented with Denaturing Gradient Gel Electrophoresis targeting 32 Chlorophyta and Cyanobacteria. OTUs belonging to the Rotifera, Chlorophyta, Tardigrada, Ciliophora, 33 Cercozoa, Fungi, Bryophyta, Bacillariophyta, Collembola and Nematoda were present with a relative 34 abundance of at least 0.1% in the eukaryotic communities. Cyanobacteria, Proteobacteria, Bacteroidetes, 35 Acidobacteria, FBP, and Actinobacteria were the most abundant bacterial phyla. Multivariate analyses of the 36 pyrosequencing data revealed a general lack of differentiation of both eukaryotes and prokaryotes according 37 to habitat type. However, the bacterial community structure in the aquatic habitats was dominated by the 38 filamentous cyanobacteria Leptolyngbya and appeared to be significantly different compared with those in 39 dry soils, on mosses, and in endolithic habitats. A striking feature in all datasets was the detection of a 40 relatively large amount of sequences new to science, which underscores the need for additional biodiversity 41 assessments in Antarctic inland locations. [less ▲]

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See detailDimensions adaptatives des fonctionnements pervers et psychopathiques : une approche étho-phénoménologique
Englebert, Jérôme ULg

Conference (2017, July 10)

Notre objectif est de discuter des diagnostics du fonctionnement psychologique pervers et de la personnalité psychopathique. Si les versions récentes du DSM (IV et 5) ignorent ces diagnostics, la pratique ... [more ▼]

Notre objectif est de discuter des diagnostics du fonctionnement psychologique pervers et de la personnalité psychopathique. Si les versions récentes du DSM (IV et 5) ignorent ces diagnostics, la pratique clinique suggère de conserver ces deux entités présentant une finesse psychopathologique plus grande et un pouvoir discriminatif plus important que la personnalité antisociale. Nous souhaitons interroger les dimensions intrinsèquement adaptatives de ces deux entités, mais aussi relever leurs différences sur le continuum de l’adaptation. Nous chercherons, en effet, à démontrer que le principe d'adaptation est une dimension centrale et commune aux deux entités, mais qui « se joue » de façons différentes pour chacune. Le pervers est hyper-adapté à son interlocuteur tout en présentant des moments paradoxaux d'inadaptation. Le psychopathe, avec sa faculté de chosification de l'alter ego et ses compétences émotionnelles paradoxales, présente une adaptation plus solitaire. Dans une perspective inspirée des paradigmes éthologique et phénoménologique, nous tenterons de cerner les différences essentielles entre ces deux modes d’être-au-monde. [less ▲]

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See detailInfluence of the balls kinematics of axially loaded ball bearings on Coulombic frictional dissipations
Bozet, Jean-Luc ULg; Servais, Christophe ULg

in Journal of Tribology (2017), 139(1),

Ball bearings have been used for a long time. Nevertheless, the description of their behavior remains incomplete in spite of the large number of surveys dedicated to ball bearings. Particularly, the exact ... [more ▼]

Ball bearings have been used for a long time. Nevertheless, the description of their behavior remains incomplete in spite of the large number of surveys dedicated to ball bearings. Particularly, the exact balls kinematics has still to be addressed in depth. This paper proposes a new way to calculate the balls kinematics by using a simplified quasi-static approach for dry lubricated and axially loaded ball bearings. This method does not use the classical restrictive race control assumptions. More specifically, the role played by the balls kinematics is emphasized by means of the power dissipated within contacts between balls and races. The need for a correct evaluation of the balls behavior is illustrated by using an example, viz. a ball bearing of cryogenic engine turbopump. Indeed, the dissipated power is one of the main concerns in this particular case. [less ▲]

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See detailPost-scriptum à La Misère du monde 25 ans après : Bourdieu, le peuple et son suicide
Cormann, Grégory ULg

in Provenzano, François; Goin, Emilie (Eds.) Usages du peuple (2017)

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See detailNi utopie ni solidarisme. Une refonte matérialiste et critique de l'association est-elle possible ?
Frère, Bruno ULg

in Delaunay, Catarina (Ed.) Democracia, promessas, utopias e (des)ilusoes : dilemas e disputas nas arenas publicas (2017)

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See detailHow to account for new forms of resistance to domination: An argument for a materialist renewal in European social theory
Frère, Bruno ULg; Tulle, Emmanuelle

E-print/Working paper (2017)

Many significant intellectual developments have taken place in 20th century European social theories. Notably the first Frankfurt School and Bourdieu’s work have successfully shown how workers, social ... [more ▼]

Many significant intellectual developments have taken place in 20th century European social theories. Notably the first Frankfurt School and Bourdieu’s work have successfully shown how workers, social actors, etc. are alienated or dominated by capitalist social structures. But according to Habermas, neither perspective successfully allows for the possibility that people could contribute to their own emancipation. The emergence of new forms of social resistance to domination such as those embodied by the Indignados, Anonymous, Femen, the practitioners of alternative economy, movements of unemployed people or illegals compels us to envisage the possibility for emancipation, but how? In this paper we explore opportunities for accounting for this by considering the work of a range of other European social theorists, more specifically Boltanski whose critical intent is embodied in his pragmatic sociology, and evident in his coining and use of the concept of the world. In addition we will consider Latour’s own pragmatic stance as we believe that despite his disinterest in new social movements, his work, informed by pure immanence, might offer potential solutions. But we would argue that even in these innovations there is either a persistent tendency to imagine emancipation primarily as a return to some ideal state or a lack of critical engagement with alienation. In response, we propose a materialist renewal, which will lead us to ponder on the political role of sociologists. [less ▲]

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See detailBack to materialism Reflections on Marx’s labour, praxis, cooperative and libertarian socialism in the 19th century
Frère, Bruno ULg

E-print/Working paper (2017)

From Marx to Althusser, the materialist approach has tended to assume that individuals (that is, workers, proletarians and other social actors), unconsciously reproduce the social structures of capitalism ... [more ▼]

From Marx to Althusser, the materialist approach has tended to assume that individuals (that is, workers, proletarians and other social actors), unconsciously reproduce the social structures of capitalism which alienate them. It is assumed that individuals accept the conditions forced upon them and no longer seek to rebel against a world which substantially impoverishes their labour, their spirit and their creativity. In this paper, I will try to show that by dint of favouring almost exclusively Marx's concept of alienation, there is a considerable risk that materialist thought will adopt only a negative path. Whilst I acknowledge Marx’s significance to materialism, I wish to argue that his stance should be combined with that of the anarchist and libertarian French thinker Proudhon. Proudhon has succeeded in presenting a conception of the worker as more than just alienated. Workers can also cooperate and experience a reciprocity seemingly at odds with the character of capitalism. Under Proudhon’s influence materialism takes a positive turn, enabling us to avoid falling into the utopianism that the theory of social economy employs to critique capitalism – a utopianism that renders its critique even less effective than that of Marx. [less ▲]

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See detailSymogih Système modulaire de gestion de l'information historique
Henneau, Marie-Elisabeth ULg

Textual, factual or bibliographical database (2017)

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See detailConverging views: the Belgian reception of Italy’s section at 1885 Antwerp’s World Exhibition. Artistic, economic, and political strategies on display
Prina, Daniela ULg

in Raizman, David; Robey, Ethan (Eds.) Expanding Nationalisms at World’s Fairs: Identity, Diversity and Exchange, 1855-1914 (2017)

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See detailFederalism and decentralisation in Belgium
Husson, Jean-François ULg; Mahieu, Céline; Sägesser, Caroline

in Ruano de la Fuente, José-Manuel (Ed.) The Palgrave Handbook on Decentralisation in Europe (2017)

This chapter explain the Belgian federalism (Regions, Communities) and decentralisation (provinces, municipalities,...). Competencies, coordination bodies and financing schemes are described while ... [more ▼]

This chapter explain the Belgian federalism (Regions, Communities) and decentralisation (provinces, municipalities,...). Competencies, coordination bodies and financing schemes are described while presenting some challenges ahead. [less ▲]

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See detailLe "Politique" de Platon. Introduction, texte, traduction et commentaire
Dixsaut, Monique; El Murr, Dimitri; Gavray, Marc-Antoine ULg et al

Book published by Vrin (2017)

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See detailLes Grecs ont-ils étudié le latin ? Quelques témoignages littéraires datant du Haut-Empire
Rochette, Bruno ULg

in Favreau-Linder, Anne-Marie; Lalanne, Sophie; Vix, Jean-Luc (Eds.) Passeurs de culture (2017)

Detailed reference viewed: 36 (3 ULg)