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See detailCrystal Structure and Kinetic Analysis of the Class B3 Di-Zinc Metallo-β-Lactamase LRA-12 from an Alaskan Soil Metagenome
Rodríguez, María Margarita; Herman, Raphaël ULg; Ghiglione, Barbara et al

in PLoS ONE (in press)

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See detailIncreased antimicrobial resistance in a novel CMY-54 AmpC-type enzyme with a GluLeu217-218 insertion in the Ω-loop
Pérez-Llarena, Francisco José; Vázquez-Ucha, Juan Carlos; Kerff, Frédéric ULg et al

in Microbial Drug Resistance : Mechanism, Epidemiology, & Disease (in press)

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See detailKülpe on Conscious Cognitive Attitudes
Dewalque, Arnaud ULg

in Discipline Filosofiche (in press)

This paper offers a reconstruction of Külpe’s theory of cognitive attitudes from the perspective of contemporary debates about cognitive phenomenology. I argue that, like Carl Stumpf at approximately the ... [more ▼]

This paper offers a reconstruction of Külpe’s theory of cognitive attitudes from the perspective of contemporary debates about cognitive phenomenology. I argue that, like Carl Stumpf at approximately the same time, Külpe endorses two major claims about cognitive experiences. First, cognitive experiences are best described in terms of cognitive acts, functions or attitudes. Second, cognitive attitudes are intransitively conscious in the sense that they are experienced by, or phenomenally manifest to, the subject. I call the combination of those two claims the conscious cognitive attitudes theory—or CCA for short. I introduce Külpe’s version of CCA, briefly present some rationales supporting it, and conclude that, on the whole, CCA is worth serious consideration when it comes to describing cognitive experiences. [less ▲]

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See detailEvaluation of different hydrocolloids to improve dough rheological properties and bread quality of potato-wheat flour
Liu, Xingli ULg; Mu, Taihua; Yamul, Karim Diego et al

in Journal of Industrial and Engineering Chemistry (in press)

The aim of study was to investigate the effect of hydroxylpropylmethylcellulose (HPMC), arabic gum (AG), konjac glucomannan (KG) and apple pectin (AP) at 2% (w/w, potato-wheat flour basis) on the potato ... [more ▼]

The aim of study was to investigate the effect of hydroxylpropylmethylcellulose (HPMC), arabic gum (AG), konjac glucomannan (KG) and apple pectin (AP) at 2% (w/w, potato-wheat flour basis) on the potato-wheat dough (the mass ratio was 1:1) rheological, fermentation properties and its bread quality. The tan δ of potato-wheat dough was significantly increased by adding HPMC compared to those of without adding hydrocolloids (from 0.337 to 0.425), which was close to wheat dough (0.531). Moreover, the dough height during fermentation process was significantly improved by adding hydrocolloids, with the order of HPMC (23.1mm) > AP (19.3mm) > AG (18.6mm) > KG (13.6mm). In addition, the potato-wheat protein bands of potato-wheat dough turned pale by adding hydrocolloids, suggesting higher molecular weight aggregation formed between proteins-hydrocolloids or proteins-proteins after fermentation process. Furthermore, HPMC significantly increased specific volume (from 1.45 to 2.22 ml/g), and hydrocolloids restrained the starch retrogradation of potato-wheat breads. [less ▲]

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See detailTo what extent is Immediate Constituency Analysis dependency-based? A survey of foundational texts
Mazziotta, Nicolas ULg; Kahane, Sylvain

in Proceedings of Depling 2017 (in press)

This paper investigates the seminal texts on Immediate Constituent Analysis and the associated diagrams. We show that the relations between the whole and its parts, that are typical of current phrase ... [more ▼]

This paper investigates the seminal texts on Immediate Constituent Analysis and the associated diagrams. We show that the relations between the whole and its parts, that are typical of current phrase structure trees, were less prominent in the early diagramming efforts than the relationships between units of the same level. This can be observed until the beginning of the 1960’s, including in Chomsky’s Syntactic Structures (1957). We discuss whether such analyses could be said “dependency-based”, according to an attempt to define this term. this term. [less ▲]

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See detailDo sex reversal procedures differentially affect agonistic behaviours and sex steroid levels depending on the sexual genotype in Nile tilapia?
Gennotte, Vincent ULg; Akonkwa, Balagizi; Mélard, Charles ULg et al

in Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology (in press)

In Nile tilapia Oreochromis niloticus, phenotypic males and females with different sexual genotypes (XX, XY, YY) have particular behavioural and physiological traits. Compared to natural XX females and XY ... [more ▼]

In Nile tilapia Oreochromis niloticus, phenotypic males and females with different sexual genotypes (XX, XY, YY) have particular behavioural and physiological traits. Compared to natural XX females and XY males, XY and YY females, and XX males expressed higher level of aggressiveness that could be related to higher levels of 17β-oestradiol and 11-ketotestosterone respectively. Our results suggest that the presence of a Y chromosome increases aggressiveness in females. However, since the same relationship between aggressiveness and the Y chromosome is not observed in males, we can hypothesize that the differences in aggressiveness are not directly dependent on the genotype but on the sex reversal procedures applied on young fry during their sexual differentiation to produce these breeders. These hormonal treatments could have permanently modified the development of the brain and consequently influenced the behaviour of adults independently of their genotype. In both hypotheses (genotype or sex reversal influence), the causes of behavioural modifications have to be searched in an early modification of the brain sexual differentiation. [less ▲]

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See detailCombined Local and Centralized Voltage Control in Active Distribution Networks
Soleimani Bidgoli, Hamid ULg; Van Cutsem, Thierry ULg

in IEEE Transactions on Power Systems (in press)

A two-level real-time voltage control scheme is proposed to keep voltages within specified limits in distribution grids using Distributed Generation Units (DGUs). It combines a local and a centralized ... [more ▼]

A two-level real-time voltage control scheme is proposed to keep voltages within specified limits in distribution grids using Distributed Generation Units (DGUs). It combines a local and a centralized control of their reactive powers. The local control provides fast response after a disturbance, reducing its impact and enhancing voltage quality. The centralized control uses measurements collected throughout the network to bring the voltages inside tighter limits and balance the various DGU contributions. To this purpose, it adjusts in a coordinated way their reactive power set-points, taking into account the local controls. This discrete control solves at each time step a multi-time-step constrained optimization inspired of Model Predictive Control. The method effectiveness is demonstrated on a 75-bus test system hosting 22 DGUs. [less ▲]

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See detailThe European Commission’s geo-blocking proposals and the future of EU e-commerce regulation
Van Cleynenbreugel, Pieter ULg

in Masaryk University Journal of Law and Technology (in press), 11(1),

As part of its Digital Single Market strategy, the European Commission envisages to take action aimed at eradicating the practice of blocking one’s website to persons established or residing in a ... [more ▼]

As part of its Digital Single Market strategy, the European Commission envisages to take action aimed at eradicating the practice of blocking one’s website to persons established or residing in a particular EU Member State. To that extent, a 2015 pro-posal for a regulation on the portability of online streaming services and a 2016 pro-posal for a regulation on geo-blocking outside the audio-visual context have been presented, the scope of which will be analysed in this paper. Although the proposed Regulations would tackle topical problems in EU e commerce and thus offer a necessary step forward in enhancing cross-border trade in the European Union, their envisaged regulatory approach raises important con-cerns from enforcement and rules’ circumvention points of view. Taking stock of those two concerns, the paper will reflect upon ways to mitigate their detrimental effects. Arguing that the geo-blocking proposals already contain the basic tools for such mitigation, the paper advocates the adoption of a more stream-lined EU competition law and e-commerce regulation enforcement strategy, comple-mented by a “technologically more pro-active” EU law interpretation stance to e-commerce at the EU level. [less ▲]

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See detailDynamic Equivalent of a Distribution Grid Hosting Dispersed Photovoltaic Units
Chaspierre, Gilles ULg; Panciatici, Patrick; Van Cutsem, Thierry ULg

in IREP’2017 Symposium: X Bulk Power Systems Dynamics and Control Symposium (in press)

This paper deals with the derivation of a simplified model of a distribution network hosting dispersed photovoltaic units. The model is aimed at short-term dynamic simulations of a transmission grid in ... [more ▼]

This paper deals with the derivation of a simplified model of a distribution network hosting dispersed photovoltaic units. The model is aimed at short-term dynamic simulations of a transmission grid in response to large disturbances. In a first step, a generic dynamic model of a photovoltaic unit is proposed, focusing on its interactions with the grid, in particular the controls triggered by voltage disturbances. The model takes into account various present and near-future grid codes. In a second step, a dynamic equivalent is derived accounting for the distribution network, the dispersed photovoltaic units, as well as static and dynamic (motor) loads. This equivalent is of the “grey-box” type and its parameters are tuned in the least-square sense to match the dynamic response of the original, unreduced system. Simulation results are reported on a detailed 913-bus distribution system subject to faults at transmission level. [less ▲]

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See detailBurdens of Access: Understanding Customer Barriers and Barrier-Attenuating Practices in Access-Based Services
Hazee, Simon ULg; Delcourt, Cécile ULg; Van Vaerenbergh, Yves

in Journal of Service Research (in press)

Access-based services (ABS), which grant customers limited access to goods without any transfer of ownership, are unique technology-based service innovations requiring the substantial involvement and ... [more ▼]

Access-based services (ABS), which grant customers limited access to goods without any transfer of ownership, are unique technology-based service innovations requiring the substantial involvement and collaboration of customers, without employees’ supervision. Although ABS offer several potential advantages, convincing customers to use them remains challenging. Combining 56 in-depth interviews with supplementary literature, the authors address this challenge by proposing an integrative framework that reflects the (1) barriers that prevent customers from using ABS and (2) practices in which customers engage to attenuate those barriers. The complex, multidimensional barriers relate not only to the service and technology features but also to other customers. Customers can engage in different practices to attenuate perceived barriers and create value, namely, “to distance,” “to manage,” “to elaborate,” “to control,” and “to relate.” Yet they regard these barrier-attenuating practices as necessary sacrifices to use ABS. Complementing suggestions that customers adopt and use ABS to escape the burdens of ownership, the current research reveals that customers actually may confront several “burdens of access.” This research suggests managers who wish to reduce rejection of their innovation could not only overcome customers’ perceived barriers, but also facilitate and reduce the number of practices in which customers engage to attenuate those barriers themselves. [less ▲]

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See detailDual action of neuro-estrogens in the regulation of male sexual behavior
Cornil, Charlotte ULg; de Bournonville, Catherine

in General and Comparative Endocrinology (in press)

Estrogens derived from brain testosterone aromatization (neuro-estrogens) are critical for the activation of male sexual behavior. Their effects on this behavior are typically associated with long-term ... [more ▼]

Estrogens derived from brain testosterone aromatization (neuro-estrogens) are critical for the activation of male sexual behavior. Their effects on this behavior are typically associated with long-term changes in circulating levels of testosterone and the transcriptional activity of their liganded nuclear receptors. According to this view, neuro-estrogens would prime the neural circuits controlling the long-term expression of behavior, which would then be acutely regulated by neurotransmitter systems conveying information from the social environment. In parallel, neuro-estrogens are also able to produce much faster effects than previously anticipated. Our recent investigations in Japanese quail revealed an interesting dichotomy in the regulation of male sexual behavior by membrane- and nuclear-initiated estrogen signaling providing respectively an acute modulation of sexual motivation and a long-term control of the capacity to display the copulatory sequence. In parallel, a similar dichotomy applies to the regulation of brain aromatase whose expression depends on the transcriptional activity of testosterone metabolites while its enzymatic activity is rapidly regulated in a region- and context-dependent manner. Recent evidences suggest that rapid changes in sexual motivation result from rapid changes in local estrogen production. Together, these data support the idea that the acute regulation of some aspects of male sexual behavior depends not only on classical neurotransmitter systems, but also on rapid and spatially restricted changes in local estrogen availability. The existing literature suggests that this acute regulation by neuro-estrogens of the motivational aspects of behavior could be generalized to other systems such as singing behavior in songbirds. [less ▲]

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See detailFirst-order Logic and Numeration Systems
Charlier, Emilie ULg

in Sequences, Groups, and Number Theory (in press)

The Büchi-Bruyère theorem states that a multidimensional set of non-negative integers is b-recognizable if and only if it is b-definable. This result is a powerful tool for showing that many properties of ... [more ▼]

The Büchi-Bruyère theorem states that a multidimensional set of non-negative integers is b-recognizable if and only if it is b-definable. This result is a powerful tool for showing that many properties of b-automatic sequences are decidable. Going a step further, first-order logic can be used to show that many enumeration problems of b-automatic sequences can be described by b-regular sequences. The latter sequences can be viewed as a generalization of b-automatic sequences to integer-valued sequences. These techniques were extended to two wider frameworks: U-recognizable multidimensional sets of non-negative integers and multidimensional beta-recognizable sets of reals. In the second case, real numbers are represented by infinite words, and hence, the notion of beta-recognizability is defined by means of Büchi automata. Again, logic-based characterizations of $U$-recognizable (resp. beta-recognizable) sets allows us to obtain various decidability results. The aim of this chapter is to present a survey of this very active research domain. [less ▲]

See detailJavier Cercas, Le mobile
Licata, Nicolas ULg

E-print/Working paper (2018)

Synopsis d'une nouvelle de Javier Cercas intitulée Le mobile (1987), rédigé dans le cadre du dossier "Les lectures pour l'été 2017" de la revue Culture.

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See detailSchizophrénie et perspective en première personne
Englebert, Jérôme ULg; Valentiny, Caroline

Scientific conference (2018, February 28)

Detailed reference viewed: 15 (3 ULg)
See detailLe travailleur du futur et la loi
Kéfer, Fabienne ULg

Conference given outside the academic context (2018)

Le travailleur du futur et la loi A quoi ressemble le travailleur de demain dans un monde où règnent toujours davantage les technologies de l’information ? Cette question est envisagée sous deux angles ... [more ▼]

Le travailleur du futur et la loi A quoi ressemble le travailleur de demain dans un monde où règnent toujours davantage les technologies de l’information ? Cette question est envisagée sous deux angles. Tout d’abord, l’économie numérique a fait naitre de nouvelles formes de production et d’emploi, telles que « l’économie des plateformes » (Uber, Deliveroo, ….). Celle-ci présente divers atouts pour les entreprises et pour les travailleurs, notamment en termes de flexibilité, mais elles est aussi la source de nouvelles formes de travail précaire. Le travailleur de demain est-il un travailleur du numérique sans protection sociale ? Le deuxième angle est celui du travailleur hyperconnecté. Faut-il envisager de créer un droit à la déconnexion ? [less ▲]

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See detailBrentano’s epistemology of history: inner experience and the reality of the past
Boccaccini, Federico ULg

in Perspectives on Science (2018)

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See detailPSI inv. 925v. HOMÈRE, Iliade, XVII 522-525
Marganne, Marie-Hélène ULg

in Bastianini, Guido; Minutoli, Diletta (Eds.) Raccolta di papiri inediti in onore di Gabriella Messeri (2018)

Edition of the PSI inv. 925

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See detailA Quinean-Inspired Interpretation of Meinong's Theory of Objects
Zincq, Aurélien ULg

in Dewalque, Arnaud; Raspa, Venanzio (Eds.) Psychological Themes in the School of Meinong (2018)

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See detailDetermination of phenolic organohalogens in human serum from a Belgian population and assessment of parameters affecting the human contamination
Dufour, Patrice ULg; PIRARD, Catherine ULg; CHARLIER, Corinne ULg

in Science of the Total Environment (2017), 599-600

Many in vitro or in vivo studies highlighted the potential deleterious effects of phenolic organohalogenated compounds (POHs) on the health, particularly on the thyroid system homeostasis, however few ... [more ▼]

Many in vitro or in vivo studies highlighted the potential deleterious effects of phenolic organohalogenated compounds (POHs) on the health, particularly on the thyroid system homeostasis, however few large scale human epidemiological studies have been carried out, especially in Europe. Further studies monitoring the human contamination by POHs, the sources of exposure and the influence of these compounds on thyroid health are still needed. Therefore we determined the concentrations of 16 POHs (pentachlorophenol (PCP), tetrabromobisphenol A (TBBPA), 4 bromophenols (BPs), 3 hydroxy-polybromodiphenylethers (OH-PBDEs) and 7 hydroxy-polychlorobiphenyls (OH-PCBs)) in serum from 274 people aged from 18 to 76 years old living in Liege (Belgium) and the surrounding area. A questionnaire about their alimentary habits, life style and home environment was also administered to the volunteers. The predominant compound measured in the population was PCP (median concentration of 593.0 pg mL−1). 4-OH-CB 107, 4-OH-CB 146 and 4-OH-CB 187 were detected in all samples and contributed for 75% of the sum of OH-PCBs (ΣOH-PCBs). The median measured in our population for ΣOH-PCBs was 143.7 pg mL−1. TBBPA and 2,4,6-tribromophenol were detected in 31% and 63.8% of the samples respectively while the detection frequency observed for the other BPs and the OH-PBDEs was close to zero. We computed multivariate regression models in order to assess the influence of demographic and lifestyle parameters on the PCP and ΣOH-PCBs contamination levels. Significant correlation was found between the PCP concentration and sex, smoker status, sea fish consumption and level of education, although the model seemed to be a poor (R2 = 0.14) predictor of the PCP concentration. The model computed for ΣOHPCBs was more explanatory (R2 = 0.61) and involved age, BMI and sea fish consumption. Finally, we assessed the parameters affecting the ΣOH-PCBs/ΣPCBs ratio. The model proposed involved age, BMI, smoker status and parent PCB level, and explained 41% of the variability of the ΣOH-PCBs/ΣPCBs ratio. [less ▲]

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See detailAlbertina, más viva que muerta
Dubois, Jacques ULg; Mogollon Zapata, Juan Manuel ULg

in Revista Linguística y Literatura (2017), 72(2),

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