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See detailLe lettere bipartite e i discorsi politici di Francesco Guicciardini nell’anno 1525
Miesse, Hélène ULiege

in Giornale Storico della Letteratura Italiana (in press)

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See detailRenaissance(s), norme(s), classicisme
Miesse, Hélène ULiege

in Miesse, Hélène; Valenti, Gianluca (Eds.) « Modello, regola, ordine ». Parcours normatifs dans l’Italie du Cinquecento (in press)

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See detailPublic et privé dans les œuvres et la correspondance de Francesco Guicciardini
Miesse, Hélène ULiege

in Lucas-Fiorato, Corinne; Girotto, Carlo (Eds.) L’écriture épistolaire entre Renaissance et Âge baroque. Pratiques, enjeux, pistes de recherche (in press)

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See detailCo-créer, pour quoi ? Justifications et imaginaires socio-techniques sous-tendant une nouvelle vague de participation en sciences et technologies
Macq, Hadrien ULiege

Conference (2018, January 12)

Les dernières années ont vu une évolution notable des formes de participation publique dans les domaines liés aux sciences et aux technologies. En effet, les années 1970 à 2000 ont vu l’émergence de ... [more ▼]

Les dernières années ont vu une évolution notable des formes de participation publique dans les domaines liés aux sciences et aux technologies. En effet, les années 1970 à 2000 ont vu l’émergence de dispositifs participatifs, souvent empreints d’un idéal délibératif, visant à inclure une multiplicité de « publics » dans des processus de prise de décision. De nos jours, cependant, se développent un ensemble de pratiques d’inclusion de publics dans la production de savoir et d’innovation. Ces pratiques, regroupées sous le label de « co-création », sont fréquemment analysées dans la littérature scientifique sous l’angle de leur contribution à la production de savoirs valides, ou d’innovations plus acceptables, voire plus responsables. L’objectif de cette communication est de les analyser en tant que pratiques de participation publique, performatrices de constructions politiques. Cette communication analyse dès lors les justifications mises en avant par les autorités publiques pour appuyer la promotion des pratiques de co-création dans deux contextes socio-politiques : la Commission Européenne et la Région Wallonne. L’analyse des justifications permet de connecter ces pratiques aux espaces plus larges, notamment institutionnels, dans lesquelles elles sont promues et de les lier aux imaginaires dans lesquels elles s’inscrivent et qui témoignent d’une vision particulière de la relation entre science, technologie et société. [less ▲]

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See detailHighlights from the Organic and Biological Analytical Chemistry Group (OBiAChem)
Focant, Jean-François ULiege

Scientific conference (2018, January)

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See detailCounting Subwords Occurrences in Base-b Expansions
Leroy, Julien ULiege; Rigo, Michel ULiege; Stipulanti, Manon ULiege

in Integers: Electronic Journal of Combinatorial Number Theory (2018)

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See detailSelf-assembly of smart mesoscopic objects
Metzmacher, Jean ULiege; Poty, Martin ULiege; Lumay, Geoffroy ULiege et al

in European Physical Journal E : Soft Matter and Biological Physics (2017), 40

Self-assembly due to capillary forces is a common method for generating 2D mesoscale structures made of identical particles floating at some liquid-air interface. We show herein how to create soft ... [more ▼]

Self-assembly due to capillary forces is a common method for generating 2D mesoscale structures made of identical particles floating at some liquid-air interface. We show herein how to create soft entities that deform or not the liquid interface as a function of the strength of some applied magnetic field. These smart floating objects self-assemble or not depending on the application of an external field. Moreover, we show that the self-assembling process can be reversed opening ways to rearrange structures. [less ▲]

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See detailPolicy dialogue makes UHC happen
Porignon, Denis ULiege; Rajan, Dheepa

Conference given outside the academic context (2017)

This presentation provides an oversight of how the European Union-Luxembourg / WHO Universal Health Coverage Partnership supports countries towards UHC.

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See detailPeople moved and will move again
Gemenne, François ULiege; De Longueville, Florence; De Bruyckere, Luka ULiege et al

Conference (2017, December 11)

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See detailSunscreens block cutaneous vitamin D production with only a minimal effect on circulating 25-hydroxyvitamin D
Libon, Florence ULiege; Courtois, Justine; LE GOFF, Caroline ULiege et al

in Archives of Osteoporosis (2017)

Summary A 50+ SPF sunscreen decreased significantly cutaneous vitamin D production following a single narrow-band (nb)UVB exposure, independently from the body surface area exposed. In contrast, the ... [more ▼]

Summary A 50+ SPF sunscreen decreased significantly cutaneous vitamin D production following a single narrow-band (nb)UVB exposure, independently from the body surface area exposed. In contrast, the circulating 25(OH)D3 levels were only minimally affected. It is probable that another endogenous source of precursors is selected when skin-originated precursors are lacking. Purpose Sunscreen use, highly advocated for preventing cutaneous carcinogenesis, is potentially leading to an aggravation of vitamin D deficiency with its consequences on bone health. The effect of sunscreens on circulating vitamin D levels remains debated. This study investigated the effect of sunscreen on cutaneous vitamin D production and circulating 25(OH)D3 levels, according to different body surface areas (BSA). Methods Vitamin D and 25(OH)D3 levels were measured in four groups exposed to a single nbUVB exposure on 9% (group I: head and hands), 23% (group II: head, hands and arms), 50% (group III: head, hands, arms and legs) and 96% (group IV: total body) of the body surface without and with a 50+ sun protection factor sunscreen. Results Sunscreen use decreased by 83, 88.3, 75.7 and 92.5% the cutaneous vitamin D production in groups I to IV, respectively, but only by 13.2, 10.5, 7.7 and 10.4% the values of circulating 25(OH)D3, correspondingly. Conclusions Although a 50+ sunscreen decreases significantly cutaneous vitamin D production following a single nbUVB exposure, and independently from the BSA, the circulating 25(OH)D3 levels were only minimally affected. This could be explained by a switch to another endogenous source of precursors. Short-term sunscreen use probably does not affect circulating vitamin D levels and hence does not increase the risk for osteoporosis. The effect of long-term sunscreen use remains however to be determined. [less ▲]

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See detailA modern study of HD 166734: a massive supergiant system
Mahy, Laurent ULiege; Damerdji, Yassine ULiege; Gosset, Eric ULiege et al

in Astronomy and Astrophysics (2017), 607

Aims: HD 166734 is an eccentric eclipsing binary system composed of two supergiant O-type stars, orbiting with a 34.5-day period. In this rare configuration for such stars, the two objects mainly evolve ... [more ▼]

Aims: HD 166734 is an eccentric eclipsing binary system composed of two supergiant O-type stars, orbiting with a 34.5-day period. In this rare configuration for such stars, the two objects mainly evolve independently, following single-star evolution so far. This system provides a chance to study the individual parameters of two supergiant massive stars and to derive their real masses. Methods: An intensive monitoring was dedicated to HD 166734. We analyzed mid- and high-resolution optical spectra to constrain the orbital parameters of this system. We also studied its light curve for the first time, obtained in the VRI filters. Finally, we disentangled the spectra of the two stars and modeled them with the CMFGEN atmosphere code in order to determine the individual physical parameters. Results: HD 166734 is a O7.5If+O9I(f) binary. We confirm its orbital period but we revise the other orbital parameters. In comparison to what we found in the literature, the system is more eccentric and, now, the hottest and the most luminous component is also the most massive one. The light curve exhibits only one eclipse and its analysis indicates an inclination of 63.0° ± 2.7°. The photometric analysis provides us with a good estimation of the luminosities of the stars, and therefore their exact positions in the Hertzsprung-Russell diagram. The evolutionary and the spectroscopic masses show good agreement with the dynamical masses of 39.5 M[SUB]⊙[/SUB] for the primary and 33.5 M[SUB]⊙[/SUB] for the secondary, within the uncertainties. The two components are both enriched in helium and in nitrogen and depleted in carbon. In addition, the primary also shows a depletion in oxygen. Their surface abundances are however not different from those derived from single supergiant stars, yielding, for both components, an evolution similar to that of single stars. Based on observations collected at the European Southern Observatory (La Silla, Chile) with FEROS and TAROT and on data collected at the San Pedro Mártir observatory (Mexico).The reduced spectra and the light curves are only available at the CDS via anonymous ftp to <A href="http://cdsarc.u-strasbg.fr">http://cdsarc.u-strasbg.fr</A> (<A href="http://130.79.128.5">http://130.79.128.5</A>) or via <A href="http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/607/A96">http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/607/A96</A> [less ▲]

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See detailSocial ‘tipping points’ under climate/environmental change
Ozer, Pierre ULiege; Koala, Ouango; Clervil, Luc et al

Conference (2017, October 12)

There is growing recognition that climate change has the potential to trigger social ‘tipping points’, potentially involving abrupt (i.e. non-linear) increases in climate damages, even under smooth (i.e ... [more ▼]

There is growing recognition that climate change has the potential to trigger social ‘tipping points’, potentially involving abrupt (i.e. non-linear) increases in climate damages, even under smooth (i.e. linear) climate change. Whilst the notion of a ‘tipping point’ originated in the social sciences, in the last decade or so it has been widely used by climate scientists, referring in particular to strongly self-amplifying (positive feedback) dynamics in parts of the climate system [sensu Lenton et al. 2008]. We argue that reinvigorating the concept of social tipping points has considerable potential to help researchers understand the social impacts of climate change and consider their human consequences. Whilst feedback dynamics can also be important in social systems, here we review a broader phenomenology of social ‘tipping points’ that could give rise to abrupt changes e.g. in climate damages. We focus in particular on migration dynamics as the original example of ‘social tipping’ which can also be affected by climate change. We include the potential for the perception of climate change (as well as the actual experience of it) to trigger ‘social tipping’. We note how a lack of system resilience can increase the likelihood and magnitude of ‘social tipping’ driven by climate change, and scope out the potential for early warning signals of particular types of social tipping. We argue that in the developing world at least there is potential for social tipping points to be triggered by climate change long before potential climate tipping points unfold. Looking ahead, the application of network theory methods to social data provides a rapidly expanding opportunity to monitor and in some cases forewarn of social tipping. [less ▲]

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See detailACTUS V
Hagelstein, Maud ULiege

Article for general public (2017)

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See detailThe Auroral Dynamic Duo - Jupiter's Independent Pulsating X-ray Hot Spots
Dunn, William; Branduardi-Raymont, Graziella; Ray, Licia et al

Conference (2017, June 15)

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See detailContributions to handle maximum size constraints in density-based topology optimization
Fernandez Sanchez, Eduardo Felipe ULiege; Collet, Maxime ULiege; Bauduin, Simon ULiege et al

in Fiebig, Sierk; Bletzinger, Kai-Uwe; Maute, Kurt (Eds.) et al Advances in Structural and Multidisciplinary Optimization (2017, June 05)

The maximum size formulation in topology optimization restricts the amount of material within a test region in each point in the design domain, leading to a highly constrained problem. In this work the ... [more ▼]

The maximum size formulation in topology optimization restricts the amount of material within a test region in each point in the design domain, leading to a highly constrained problem. In this work the local constraints are aggregated into a single one by p-mean and p-norm functions, classically used for stress constraints. Moreover, a new test region is investigated which is a ring instead of the classical circle around the element. These developments were implemented for compliance minimization with the MBB beam test case. Results indicate that p-mean performs better in the maximum size field than p-norm, because it underestimates the most violated constraint. This gives some relaxation to the problem that allows stiffer connections. Similar effect has been observed for the ring-shaped region which reduces the amount of holes that are introduced in the structure, specially in the connection of solid members. In addition, it is shown that the maximum size formulation allows the definition of the minimum gap between solid members which gives designers more control over the geometry. The developments have been illustrated and validated with compliance minimization tests of 2D-domains. [less ▲]

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See detailVoltaire, Zaïre, (éd. Pierre Frantz)
Daubercies, Laurence ULiege

in Revue Voltaire (2017)

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