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See detailNovel structures for optimal space partitions
Opsomer, Eric ULg; Vandewalle, Nicolas ULg

in New Journal of Physics (2016)

Partitioning space into polyhedra with a minimum total surface area is a fundamental question in science and mathematics. In 1887, Lord Kelvin conjectured that the optimal partition of space is obtained ... [more ▼]

Partitioning space into polyhedra with a minimum total surface area is a fundamental question in science and mathematics. In 1887, Lord Kelvin conjectured that the optimal partition of space is obtained with a 14-faced space-filling polyhedron, called tetrakaidecahedron. Kelvin’s conjecture resisted a century until Weaire and Phelan proposed in 1994 a new structure, made of eight polyhedra, obtained from numerical simulations. Herein, we propose a stochastic method for finding efficient polyhedral structures, maximizing the mean isoperimeter Q, instead of minimizing total area. We show that novel optimal structures emerge with non-equal cell volumes and uncurved facets. A partition made of 24 polyhedra, is found to surpass the previous known structures. Our work suggests that other structures with high isoperimeter values are still to be discovered in the pursuit of optimal space partitions. [less ▲]

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See detail2016 ESC Guidelines for the management of atrial fibrillation developed in collaboration with EACTS.
Kirchhof, Paulus; Benussi, Stefano; Kotecha, Dipak et al

in European Heart Journal (2016), 37(38), 2893-2962

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See detailShaping (im)mobility: borders, camps, and non-state actors
Da Silva, Amanda Carolina ULg

Conference (2016, October 07)

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See detailEtude des déterminants de l'efficacité organisationnelle des associations sans but lucratif bénéficiaires de microcrédits au Burundi: une approche d'alignement stratégique
Nduwayo, Marie Goreth ULg

Doctoral thesis (2016)

Even if the Henderson and Venkatraman (1993) works on the strategic alignment have paved the way for several research to determine the impact of strategic alignment on companies’ organizational ... [more ▼]

Even if the Henderson and Venkatraman (1993) works on the strategic alignment have paved the way for several research to determine the impact of strategic alignment on companies’ organizational performance, there is absence of consensus in the literature regarding how companies can align. In addition, while the question of the effectiveness of non-profit organizations remains an important topic for researchers, empirical studies of their organizational effectiveness remain rare. We address this issue by taking on account a specific attribute of a difficult economic environment: the threat of survival of Burundian's Non-Profit Associations (ASBL) beneficiaries of microcredits. Thus, our study shows that the strategic alignment of these ASBL is realize through on their adjustment (taken in the sense of finality or condition that is different from the process) to the constraints of their donors. This approach articulate on three registers: in positioning us in the field of research of company strategies, we base on strategic alignment in the context of survival, and then we address survival issues. We demonstrate that the strategic adjustment is the basis of the survival strategies of these microstructures in a Burundian context dominated by insecurity and extreme poverty. The primary needs of these entities are indeed at the root of the adjustment response to key resources provided by microfinance institutions. Thus, the objective of our study is to explain how the strategic alignment of these ASBL to the constraints of the donors can have a decisive influence on their organizational effectiveness (a facet of performance). To this end, we build a model and we test it empirically with 150 ASBL beneficiaries of microcredits created from 1992 to 2011. We prove that their internal organization is an important determinant of their organizational effectiveness and is the basis of their efficiency. This organizational asset has certain particular features and is the result of strategic alignment. [less ▲]

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See detailPhenotypic plasticity in a fossorial toad from a Pacific xeric forest (Ecuador)
Székely, Diana ULg; Szekely, Paul; Denoël, Mathieu ULg et al

Poster (2016, October 06)

For amphibians, optimal size at metamorphosis is determined by a trade-off between opportunities for growth and risks of mortality in aquatic and terrestrial habitats, and many species show a high degree ... [more ▼]

For amphibians, optimal size at metamorphosis is determined by a trade-off between opportunities for growth and risks of mortality in aquatic and terrestrial habitats, and many species show a high degree of plasticity in time and size at metamorphosis that allow them to adapt to unpredictable environments. We used as model a neotropical anuran species, the Pacific horned frog, Ceratophrys stolzmanni, that inhabits the Tumbesian dry forests of southwestern Ecuador, and lays its eggs in lentic habitats of variable size and unpredictable duration. We investigated (i) how tadpoles time their metamorphosis in order to escape a rapidly drying aquatic habitat, and (ii) the consequences of metamorphosis plasticity on the immediate and mid-term fitness of individuals. We conducted two experiments; in the first one we exposed 36 tadpoles to one of three water levels treatments: constant high, decreasing and constant low. Tadpoles that were raised in decreasing or low water level metamorphosed on average 13% and 10% faster than the ones from constant high water level, but at a lower body size and mass. Growth rates were among the highest recorded for tadpoles and individuals from the constant high water level treatment grew at a much faster rate than the others. In a second experiment, we sampled 72 freshly metamorphosed (Gosner stage 45) C. stolzmanni individuals of assorted sizes (SVL between 23.8 and 47.9 mm, body weight between 1.2 and 11.9 g). From this spectrum of sizes, we selected the 21 largest and 22 smallest individuals and evaluated the effects of body size at metamorphosis on trophic and locomotory performance parameters. We determined their growth rate and survival over the course of an activity season (i.e., two months). Our results show that bigger size at metamorphosis is correlated with better survival chances and performance. Larger individuals were more mobile, had bigger gape width and better survival rates (95% compared to 64% for small individuals). Growth rates were not correlated with initial size, and small individuals were capable of increasing their size at a higher rate. This indicates that, although size at metamorphosis has an immediate impact on fitness, smaller individuals are able to compensate with an increased growth rate. [less ▲]

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See detailDouble culture, double richesse ?
Mescoli, Elsa ULg

Conference given outside the academic context (2016)

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See detailAgeism among medical students
Corvol, Aline; Missotten, Pierre ULg; Gentric, Armelle et al

Poster (2016, October 06)

Introduction Negative stereotypes concerning elderly persons are widespread in general population. When they are adopted by health care professionals, it can decrease the quality of care or even induce ... [more ▼]

Introduction Negative stereotypes concerning elderly persons are widespread in general population. When they are adopted by health care professionals, it can decrease the quality of care or even induce disability. That’s why medical curriculum should take the question of ageism in consideration. Though, little is known about ageism among medical students and its determinants. Method We conducted a study on Rennes University (France) medical students (year 2 to year 6) using on line questionnaire. Validated tools, such as Fraboni Scale of Ageism, and innovating ones, such as verbal fluency task about aging and youth, have been proposed. Results have been compared with those obtained in Liège, Belgium, and analyzed according to age, gender, year of study, and geriatric training. Results Response rate was above 90%, leading to 814 replies. Replies, especially at the verbal fluency task, demonstrate the strength of negative stereotypes, with similar results in Rennes and Liège. No effect of courses or internship in geriatrics has been identified. Negative stereotypes seem lower in female students, and in those who have regular contact with elderly persons, especially if these contacts are good. Key conclusion Ageism is widespread in French medical students, whatever the year of study. Enhancing positive contacts between elderly persons and medical students may be an effective way to prevent it, but may be challenging to implement. Further studies could focus on implicit stereotypes to underplay the social desirability bias. [less ▲]

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See detailEmergence d'une catégorie de "non ayant droit". La Belgique et la réforme de l'assurance-chômage
Remy, Céline ULg; Senhadji, Khadija

Conference (2016, October 06)

Les récentes évolutions de l’assurance-chômage en Belgique font apparaître des vagues d’exclusions ‘automatiques’ de chômeurs allocataires d’insertion, ce qui étend par conséquent la catégorie de « non ... [more ▼]

Les récentes évolutions de l’assurance-chômage en Belgique font apparaître des vagues d’exclusions ‘automatiques’ de chômeurs allocataires d’insertion, ce qui étend par conséquent la catégorie de « non ayant-droit ». Cette dernière constitue un réel défi pour les institutions publiques car ces personnes disparaissent des radars institutionnels. Nous nous intéressons plus particulièrement au cas bruxellois où dès 2004, deux outils d’accompagnement ont été mis en place tout spécialement pour encadrer les jeunes chercheurs d’emploi. Une analyse chiffrée de la situation de ce public-cible encadré par les services publics bruxellois permettra de mettre en évidence le processus de (dé)régulation du marché de l’emploi. [less ▲]

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See detailHTA du patient transplanté : quelles données pour adapter le traitement?
Krzesinski, Jean-Marie ULg

Conference (2016, October 06)

Hypertension en Transplantation Rénale: conclusions •L’HTA est fréquente , souvent multifactorielle et sa prise en charge est importante pour le pronostic. •Le recours aux techniques de mesure de la PA en ... [more ▼]

Hypertension en Transplantation Rénale: conclusions •L’HTA est fréquente , souvent multifactorielle et sa prise en charge est importante pour le pronostic. •Le recours aux techniques de mesure de la PA en dehors de la consultation est nécessaire. •La cible de la PA est d’autant plus basse que l’on s’éloigne de la date de la Transplantation (cible de la PA proposée <130/80 mmHg après le 1ier trimestre). •Rôle de l’alimentation dans l’approche thérapeutique et des AC DHP et Bêtabloquant. Changer l’IS peut être bénéfique. •Si résistance au traitement, rechercher une cause secondaire, une mauvaise adhérence à la diététique et aux médicaments. [less ▲]

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See detailIntroduction au Colloque "Du vivant au social: les semences en question"
Hecquet, Corentin ULg; Hermesse, Julie

Conference (2016, October 06)

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See detailLes nouvelles recommandations 2016 dans l’insuffisance cardiaque & Présentation d'une étude de Télémédecine
Troisfontaines, Pierre; D'ORIO, Virginie ULg; Melissopoulou, Maria et al

Conference (2016, October 06)

Epidémiologie, diagnostic et Approche médicamenteuse. Dr M. Melissopoulou (CHR de liège) • Approche non médicamenteuse & comorbidités. Dr Troisfontaines (CHR de Liège) • Insuffisance cardiaque aigue ... [more ▼]

Epidémiologie, diagnostic et Approche médicamenteuse. Dr M. Melissopoulou (CHR de liège) • Approche non médicamenteuse & comorbidités. Dr Troisfontaines (CHR de Liège) • Insuffisance cardiaque aigue & Insuffisance cardiaque terminale. Dr V. D’Orio (CHU de Liège) • Présentation de l’étude Télémédecine Dr A. Ancion (CHU de Liège) [less ▲]

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See detailRayures
Schneider, Nicole ULg

Book published by EdiLivre (2016)

L'histoire Rayures parle du haut potentiel. Ce livre s'adresse aux enfants surdoués à partir de l'âge de 7 ou 9 ans. À ce moment beaucoup d'entre eux se rendent compte de leur particularité. Les enfants ... [more ▼]

L'histoire Rayures parle du haut potentiel. Ce livre s'adresse aux enfants surdoués à partir de l'âge de 7 ou 9 ans. À ce moment beaucoup d'entre eux se rendent compte de leur particularité. Les enfants HP comprennent souvent qu'on parle d'eux et qu'on chuchote derrière leur dos. Ils ont du mal à décerner en quoi consiste la différence entre eux et les autres. Puisque cette différence existe, aussi bien dans la structure de leurs pensées que dans leur vie affective. Donc leur perception du monde n'est pas la même. Sous forme d'une conversation fictive l'auteur explique brièvement comment on pourrait se sentir dans la peau d'un zèbre afin que les enfants détectent une normalité dans l'atypie. [less ▲]

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See detailThe project PhytoKat in Lubumbashi, D.R. Congo: conditions for the integration of traditional medicine in modern healthcare
Bakari, A.; Meerts, P.; Vandenput, Sandrina ULg et al

Conference (2016, October 06)

The D.R. Congo still faces multiple health problems. Notably the access to conventional medicine is limited; as in most Sub-Saharan countries, traditional medicine is the primary, and often the only ... [more ▼]

The D.R. Congo still faces multiple health problems. Notably the access to conventional medicine is limited; as in most Sub-Saharan countries, traditional medicine is the primary, and often the only, source of care for a majority of the population and the WHO advocates its recognition and modernization for primary health care. This pilot project aims to establish the necessary foundation for progress in this direction in Katanga: • The conditions for the introduction of traditional practices in modern medicine will be evaluated (quality of the practitioners and diagnostics; quality, efficiency, safety of treatments); • Many plants used in traditional medicine have already been documented in Katanga; certain traditional practices have been validated by the identification of active compounds. The project proposes to deepen the botanical, pharmacological, chemical and agronomic study of these interesting species; • In the context of regional erosion of plant diversity, excessive harvesting of some vulnerable medicinal species could represent a serious threat; developing a conservation strategy is urgent and requires an inventory of their current distribution. Through 5 doctoral theses in pharmacognosy, biomedical and agronomic sciences, the project will aim at correcting the weaknesses identified by the recent Joint Context Analysis, performed in R.D. Congo at DGD initiative, for the domain environment/natural resources: "Lack of information, knowledge and awareness among decision makers and local communities on the benefits of biodiversity-related development". [less ▲]

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See detailDevelopment of polymer-based systems for healthcare applications
Grandfils, Christian ULg

Conference (2016, October 06)

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See detailGoal of 3D Express and quick panorama of 3D
Verly, Jacques ULg

Scientific conference (2016, October 05)

Detailed reference viewed: 23 (1 ULg)