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See detailSignes et corrections dans le P.Vat. gr. 11v - Favorinos, De exsilio
Macedo, Gabriel ULg

in Marganne, Marie-Hélène; Amato, Eugenio (Eds.) Entre papyrologie, philologie et littérature. Autour du traité "Sur l'Exil" de Favorinos d'Arles. Actes de la journée d'études, Nantes 13-11-2013 (2015)

A study of scribal practices, signs and corrections on the only known copy of Favorinos' De exsilio.

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See detailTime’s Up! Involvement of Metamemory Knowledge, Executive Functions, and Time Monitoring in Children’s Prospective Memory Performance
Geurten, Marie ULg; Lejeune, Caroline ULg; Meulemans, Thierry ULg

in Child Neuropsychology : A Journal on Normal & Abnormal Development in Childhood & Adolescence (2015)

This study examined time-based prospective memory (PM) in children and explored the possible involvement of metamemory knowledge and executive functions in the use of an appropriate time monitoring ... [more ▼]

This study examined time-based prospective memory (PM) in children and explored the possible involvement of metamemory knowledge and executive functions in the use of an appropriate time monitoring strategy depending on the ongoing task’s difficulty. Specifically, a sample of 72 typically developing children aged 4, 6, and 9 years old were given an original PM paradigm composed of both an ongoing procedural activity and a PM task. Half of the participants (expert group) were trained in the ongoing activity before the prospective test. As expected, results show that time monitoring had a positive effect on children’s PM performance. Furthermore, mediation analyses reveal that strategic time monitoring was predicted by metamemory knowledge in the expert group but only by executive functions in the novice group. Overall, these findings provide interesting avenues to explain how metamemory knowledge, strategy use, and executive functions interact to improve PM performance during childhood. [less ▲]

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See detailAre Children Conservative, Liberal or Metacognitive? Preliminary Evidence for the Involvement of the Distinctiveness Heuristic in Decision Making
Geurten, Marie ULg; Willems, Sylvie ULg; Meulemans, Thierry ULg

in Journal of Experimental Child Psychology (2015), 132

The present experiment investigates whether young children are able to reduce their false recognition rate after distinctive encoding by implementing a strategic metacognitive rule. Seventy-two children ... [more ▼]

The present experiment investigates whether young children are able to reduce their false recognition rate after distinctive encoding by implementing a strategic metacognitive rule. Seventy-two children, aged 4, 6, and 9 years, studied two lists of unrelated items. One of these lists was visually displayed (picture condition) while the other was presented auditorily (word condition). After each study phase, participants completed recognition tests. Finally, they answered questions about their explicit knowledge of the distinctive-encoding effect. The results revealed that even the youngest children in our sample showed a smaller proportion of intrusions in the picture condition than in the word condition. Furthermore, the results of the signal detection analyses were consistent with the hypothesis that the lower rate of false recognitions after picture encoding results from the implementation of a conservative response criterion based on metacognitive expectations (distinctiveness heuristic). Moreover, the absence of correlation between children’s explicit knowledge of the distinctiveness rule and their effective use of this metacognitive heuristic seems to indicate that its involvement in memory decisions could be mediated by implicit mechanisms. [less ▲]

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See detailThe oblique expression of the object in Ancient Egyptian
Winand, Jean ULg

in Grossman, Eitan; Haspelmath, Martin; Richter, Tonio (Eds.) Egyptian-Coptic Linguistics in Typological Perspective (2015)

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See detailOn the increasing relevance of time in later Late Egyptian: jw sDm=f and jw jw=f r sDm, and other things
Winand, Jean ULg

in Lingua Aegyptia [= LingAeg] (2015), 22

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See detailStellar acoustic radii, mean densities, and ages from seismic inversion techniques
Buldgen, Gaël ULg; Dupret, Marc-Antoine ULg; Reese, Daniel et al

in Astronomy and Astrophysics (2015), 574

Context. Determining stellar characteristics such as the radius, mass or age is crucial when studying stellar evolution or exoplanetary systems, or when characterising stellar populations in the Galaxy ... [more ▼]

Context. Determining stellar characteristics such as the radius, mass or age is crucial when studying stellar evolution or exoplanetary systems, or when characterising stellar populations in the Galaxy. Asteroseismology is the golden path to accurately obtain these characteristics. In this context, a key question is how to make these methods less model-dependent. Aims: Building on the previous work of Daniel Reese, we wish to extend the Substractive Optimally Localized Averages (SOLA) inversion technique to new stellar global characteristics beyond the mean density. The goal is to provide a general framework in which to estimate these characteristics as accurately as possible in low-mass main-sequence stars. Methods: First, we describe our framework and discuss the reliability of the inversion technique and possible sources of error. We then apply this methodology to the acoustic radius, an age indicator based on the sound speed derivative and the mean density, and compare it to estimates based on the average large and small frequency separations. These inversions are carried out for several test cases including various metallicities, different mixing-lengths, non-adiabatic effects, and turbulent pressure. Results: We observe that the SOLA method yields accurate results in all test cases whereas results based on the large and small frequency separations are less accurate and more sensitive to surface effects and structural differences in the models. If we include the surface corrections of Kjeldsen et al. (2008, ApJ, 683, L175), we obtain results of comparable accuracy for the mean density. Overall, the mean density and acoustic radius inversions are more robust than the inversions for the age indicator. Moreover, the current approach is limited to relatively young stars with radiative cores. Increasing the number of observed frequencies improves the reliability and accuracy of the method. [less ▲]

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See detailDiscovery of Diffuse Aurora on Mars
Schneider, Nick; Stiepen, Arnaud ULg; Jain, S et al

Conference (2015)

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See detailUncertainties in Models of Stellar Structure and Evolution
Noels-Grötsch, Arlette ULg; Bragaglia, Angela

in Astrophysics and Space Science Proceedings (2015), 39

Numerous physical aspects of stellar physics have been presented in Session 2 and the underlying uncertainties have been tentatively assessed. We try here to highlight some specific points raised after ... [more ▼]

Numerous physical aspects of stellar physics have been presented in Session 2 and the underlying uncertainties have been tentatively assessed. We try here to highlight some specific points raised after the talks and during the general discussion at the end of the session and eventually at the end of the workshop. A table of model uncertainties is then drawn with the help of the participants in order to give the state of the art in stellar modeling uncertainties as of July 2013. [less ▲]

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See detailD'une question patrimoniale à une réflexion sur l'Etat : de l'utilité de la théorie du droit pour comprendre une décision judiciaire
Vandenbulke, Antoine ULg

in Revue de la Faculté de Droit de l'Université de Liège (2015)

The High Court of Paris was required to rule in its judgment of November 20th 2013 on the quality of public archives of telegrams written by General de Gaulle in London between 1940 and 1942. This issue ... [more ▼]

The High Court of Paris was required to rule in its judgment of November 20th 2013 on the quality of public archives of telegrams written by General de Gaulle in London between 1940 and 1942. This issue leads to a question about the status of Free France as a State, and its coexistence with Vichy France. This paper analyzes the Court's decision through the prism of Legal Theory mobilizing Hart’s reflection in terms of internal and external points of view. [less ▲]

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See detailLes techniques de restauration des prairies tempérées fonctionnent-elles sous les tropiques ?
Le Stradic, Soizig ULg; Buisson, Elise

in Forget, Michel-Pierre; Hossaert-McKey, Martine; Poncy, Odile (Eds.) Écologie tropicale: De l'ombre à la lumière (2015)

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See detailNeuromodulation in migraine: state of the art and perspectives.
MAGIS, Delphine ULg

in Expert review of medical devices (2015)

Migraine is a highly prevalent and disabling disease. The drugs prescribed for migraine prophylaxis can have intolerable side effects or can be ineffective. Neuromodulation techniques are increasingly ... [more ▼]

Migraine is a highly prevalent and disabling disease. The drugs prescribed for migraine prophylaxis can have intolerable side effects or can be ineffective. Neuromodulation techniques are increasingly used in neurology. Transcutaneous supraorbital nerve stimulation is effective in episodic migraine prevention, whereas vagus nerve stimulation provides interesting results in acute migraine therapy. Transcranial stimulation techniques gave variable, and sometimes contradictory, results. The visual cortex is the target of choice in migraine: studies in migraine prevention and aura acute treatment are encouraging. These noninvasive therapies appear safe with a low rate of side effects. Available studies of invasive occipital nerve stimulation in chronic migraine gave modest results; but invasive occipital nerve stimulation offers a new hope to highly disabled patients who failed to respond to any other treatment. In the future, neuromodulation will probably take an increasing place in migraine treatment, as add-on therapy or alternative to medications, especially because of its attractive safety profile. [less ▲]

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See detailConstructing Quebec and Wallonia: How Political Parties Speak about their Region
Mercenier, Heidi; Perrez, Julien ULg; Reuchamps, Min

in Reuchamps, Min (Ed.) Minority Nations in Multinational Federations. A comparative study of Quebec and Wallonia (2015)

Political parties are key political actors in both Quebec and Wallonia. As their foremost ambition is to govern their region, these parties clearly contribute to shaping its identity and image. This ... [more ▼]

Political parties are key political actors in both Quebec and Wallonia. As their foremost ambition is to govern their region, these parties clearly contribute to shaping its identity and image. This chapter aims at exploring how political parties in Quebec and in Wallonia speak about their region by focusing on an analysis of their electoral manifestos for the period 1994–2014. Using a quantitative and qualitative approach combining insights from lexicometry, cognitive linguistics and political science, the aims of this contribution are (i) to unravel how the parties perceive their region and its future development, (ii) to identify relevant evolutions in their perception of their respective region, and (iii) to assess to what extent parallels can be drawn between the two regions. [less ▲]

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See detailPositive cooperativity between acceptor and donor sites of the peptidoglycan glycosyltransferase.
Bury, Daniel; Dahmane, Ismahene ULg; Derouaux, Adeline ULg et al

in Biochemical pharmacology (2015), 93(2), 141-50

The glycosyltransferases of family 51 (GT51) catalyze the polymerization of lipid II to form linear glycan chains, which, after cross linking by the transpeptidases, form the net-like peptidoglycan ... [more ▼]

The glycosyltransferases of family 51 (GT51) catalyze the polymerization of lipid II to form linear glycan chains, which, after cross linking by the transpeptidases, form the net-like peptidoglycan macromolecule. The essential function of the GT makes it an attractive antimicrobial target; therefore a better understanding of its function and its mechanism of interaction with substrates could help in the design and the development of new antibiotics. In this work, we have used a surface plasmon resonance Biacore((R)) biosensor, based on an amine derivative of moenomycin A immobilized on a sensor chip surface, to investigate the mechanism of binding of substrate analogous inhibitors to the GT. Addition of increasing concentrations of moenomycin A to the Staphylococcus aureus MtgA led to reduced binding of the protein to the sensor chip as expected. Remarkably, in the presence of low concentrations of the most active disaccharide inhibitors, binding of MtgA to immobilized moenomycin A was found to increase; in contrast competition with moenomycin A occurred only at high concentrations. This finding suggests that at low concentrations, the lipid II analogs bind to the acceptor site and induce a cooperative binding of moenomycin A to the donor site. Our results constitute the first indication of the existence of a positive cooperativity between the acceptor and the donor sites of peptidoglycan GTs. In addition, our study indicates that a modification of two residues (L119N and F120S) within the hydrophobic region of MtgA can yield monodisperse forms of the protein with apparently no change in its secondary structure content, but this is at the expense of the enzyme function. [less ▲]

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See detailEffect of enzymatic treatment on rheological properties, glass temperature transition and microstructure of date syrup
Abbès, Fatma; Masmoudi, Manel; Kchaou, Wissal et al

in LWT - Food Science and Technology (2015), 60

A knowledge of rheological properties is of importance in processing, handling, process design, product development and quality control. This study investigates the effect of commercial hydrolytic enzymes ... [more ▼]

A knowledge of rheological properties is of importance in processing, handling, process design, product development and quality control. This study investigates the effect of commercial hydrolytic enzymes (pectinase and cellulase) on rheological properties and glass temperature transition of date syrup. Date syrups obtained by enzymatic extraction exhibited a quasi Newtonian behaviour. The enzyme-treated date syrups showed the highest values of activation energy (Ea). Therefore, these syrups showed the most temperature dependency. Dynamic shear results revealed viscous behaviour for date syrups indicating that both syrups displayed liquid-like behaviour. Temperature significantly affected both (G') and (G''). The glass transition temperature (Tg) of date syrups varied between -39.56 and -45.74 °C depending on their composition. Glass transition temperature of date syrups decreased linearly with an increase in water content. [less ▲]

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See detailOptimal control of a Cope rearrangement by coupling the reaction path to a dissipative bath or a second active mode
Chenel, Aurélie; Meier, Christoph; Dive, Georges et al

in The Journal of Chimical Physics (2015), 142

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See detailInvesting in the Future
Pahud de Mortanges, Charles ULg

E-print/Working paper (2015)

This paper attempts to address the challenges of how to invest in Synthetic Biology firms, most of which are relatively new start-ups and unprofitable. Valuing an early-stage firm with only a brief ... [more ▼]

This paper attempts to address the challenges of how to invest in Synthetic Biology firms, most of which are relatively new start-ups and unprofitable. Valuing an early-stage firm with only a brief operating history, little or no operating profit (or even revenue), and an immature and untested business model, could be a formidable challenge. We propose a limited number of quantitative, and a larger number of qualitative criteria. An investor may consider these when faced with analyzing a new untried business, but one he/she believes has considerable potential for success in the future. [less ▲]

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See detailElevated heart rate at 24-36h after admission and in-hospital mortality in acute in non-arrhythmic heart failure.
Lancellotti, Patrizio ULg; ANCION, Arnaud ULg; Magne, Julien et al

in International journal of cardiology (2015), 182C

BACKGROUND: Elevated resting heart rate is associated with worse outcomes in chronic heart failure (HF) but little is known about its prognostic impact in acute setting. The main aim of the present study ... [more ▼]

BACKGROUND: Elevated resting heart rate is associated with worse outcomes in chronic heart failure (HF) but little is known about its prognostic impact in acute setting. The main aim of the present study was to examine the relationship between resting heart rate obtained 24-36h after admission for acute non-arrhythmic HF and in-hospital mortality. METHODS AND RESULTS: We examined the association of heart rate with in-hospital mortality in a cohort of 712 patients admitted for acute HF. None of the patients had significant arrhythmias, required invasive ventilation, or presented with acute coronary syndrome or primary valvular disease. Forty patients (5.6%) died during the hospital stay. Those patients were significantly older (78+/-9 vs. 72+/-12years; p=0.0021), had higher heart rate (92+/-22 vs. 78+/-18bpm; p<0.0001), NT pro-BNP (p=0.0005), creatinine (p=0.023), were often diabetics (p=0.026) and had lower systolic and diastolic blood pressures (p<0.05). There was a significant graded relationship between the increase in mortality rate and tertile of heart rate (p<0.01). With multivariable analysis, age (p=0.037), heart rate (p<0.0001), diastolic blood pressure (p<0.001), prior ischemic heart disease (p=0.02) and creatinine (p=0.019) emerged as independent predictors of in-hospital mortality. After adjusting for predictors of poor prognosis, patients in the highest heart rate tertile had worst outcomes when compared with those in the lowest heart rate group (p=0.007). CONCLUSIONS: Higher heart rate 24-36h after admission for acute non-arrhythmic HF is associated with increased risk of in-hospital mortality. Early targeting of elevated heart rate might represent a complementary therapeutic challenge. [less ▲]

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