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See detailGuided Dive for the Spatial Branch-and-Bound
Gerard, Damien ULg; Koeppe, Matthias; Louveaux, Quentin ULg

in Journal of Global Optimization (in press)

We study the spatial Brand-and-Bound algorithm for the global opti- mization of nonlinear problems. In particular we are interested in a method to find quickly good feasible solutions. Most spatial Branch ... [more ▼]

We study the spatial Brand-and-Bound algorithm for the global opti- mization of nonlinear problems. In particular we are interested in a method to find quickly good feasible solutions. Most spatial Branch-and-Bound-based solvers use a non-global solver at a few nodes to try to find better incumbents. We show that it is possible to improve the branching rules and the node priority by exploiting the solutions from the non-global solver. We also propose several smart adaptive strategies to choose when to run the non-global solver. We show that despite the time spent in solving more NLP problems in the nodes, the new strategies enable the algorithm to find the first good incumbents faster and to prove the global opti- mality faster. Numerous easy, medium size as well as hard NLP instances from the Coconut library are benchmarked. All experiments are run using the open source solver Couenne. [less ▲]

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See detailMaximum energy dissipation to explain velocity fields in shallow reservoirs
Westhoff, Martijn; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in Journal of Hydraulic Research (in press)

Shallow reservoirs are often used as sediment traps or storage basins, in which sedimentation depends on the flow pattern: Short rectangular reservoirs reveal a straight jet from inlet to outlet with on ... [more ▼]

Shallow reservoirs are often used as sediment traps or storage basins, in which sedimentation depends on the flow pattern: Short rectangular reservoirs reveal a straight jet from inlet to outlet with on both sides identical recirculation zones. In longer reservoirs, the main jet reattaches to the side of the reservoir leading to a small and a large recirculation zone. Previous studies found an empirical geometric relation describing the switch between these two flow patterns. In this study, we demonstrate, with a simple analytical model, that this switch coincides with a maximization of energy dissipation in the shear layer between the main jet and recirculation zones: Short reservoirs dissipate more energy when the flow pattern is symmetric, while longer reservoirs dissipate more energy with an asymmetric pattern. This approach enables to predict the flow patterns without detailed knowledge of small scale processes, potentially useful in the early phase of reservoir design. [less ▲]

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See detailL'Halys chez Hérodote
Leloux, Kevin ULg

in Studia Hercynia (in press)

This paper analyses the Halys River’ description made by Herodotus in his Histories. This study focuses on the several references made by the Father of History in his work. It will examine the part the ... [more ▼]

This paper analyses the Halys River’ description made by Herodotus in his Histories. This study focuses on the several references made by the Father of History in his work. It will examine the part the river took in his vision of the politic, ethnic and geographic state in the historian’s mind and the problems that arise by this presentation. Finally, this article will demonstrate that every crossing of the Halys River made by the Barbarians were a bad omen for the Greeks of Asia Minor and in Greece itself. [less ▲]

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See detailIPCAPS: an R package for iterative pruning to capture population structure
Chaichoompu, Kridsadakorn ULg; Abegaz Yazew, Fentaw; Tongsima, Sissades et al

in Bioinformatics : Application Notes (in press)

Resolving population genetic structure is challenging, especially when dealing with closely related populations. Although Principal Component Analysis (PCA)-based methods and genomic var- iation with ... [more ▼]

Resolving population genetic structure is challenging, especially when dealing with closely related populations. Although Principal Component Analysis (PCA)-based methods and genomic var- iation with single nucleotide polymorphisms (SNPs) are widely used to describe shared genetic an- cestry, improvements can be made targeting fine-level population structure. This work presents an R package called IPCAPS, which uses SNP information for resolving possibly fine-level population structure. The IPCAPS routines are built on the iterative pruning Principal Component Analysis (ipP- CA) framework to systematically assign individuals to genetically similar subgroups. Our tool is able to detect and eliminate outliers in each iteration to avoid misclassification. It can be extended to de- tect subtle subgrouping in patients as well. In addition, IPCAPS supports different measurement scales for variables used to identify substructure. Hence, panels of gene expression and methylation data can be accommodated. [less ▲]

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See detailFrom seascape level to functional ecology: A case study over P. oceanica seagrass meadows in Calvi, Corsica
Lapeyra Martin, Jon ULg; Abadie, Arnaud; Richir, Jonathan ULg et al

in Actes du colloque Carhamb'ar 2017 (in press)

see long abstract

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See detailCarbohydrates in Paediatric Parenteral Nutrition
Mesotten, D; Joosten, K; van Kempen, A et al

in Clinical Nutrition (in press)

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See detailHome Parenteral Nutrition in Paediatrics
Hill, S; Ksiaszyk, J; Prell, C et al

in Clinical Nutrition (in press)

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See detailOrganisational aspects of paediatric parenteral nutrition
Puntis, J; Hojsak, I; Ksiazyk, J et al

in Clinical Nutrition (in press)

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See detailEnergy in Paediatric Parenteral Nutrition
Joosten, Koen; Embleton, Nick; Yan, W et al

in Clinical Nutrition (in press)

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See detailVitamins in Paediatric Parenteral Nutrition
Bronski, J; Campoy, C; Braegger, C et al

in Clinical Nutrition (in press)

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See detailVenous Access for Paediatric Parenteral Nutrition
Kolacek, S; Puntis, J; Hojsak, I et al

in Clinical Nutrition (in press)

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See detailIron and Trace Element in Paediatric Parenteral Nutrition
Domellof, M; Szitanyi, P; Simchowitz, V et al

in Clinical Nutrition (in press)

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See detailFluid and Electrolytes (Na, Cl and K) in Paediatric Parenteral Nutrition
Jochum, Franck; Moltu, Sissel; SENTERRE, Thibault ULg et al

in Clinical Nutrition (in press)

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See detailStandard versus individualized parenteral nutrition
Riskin, A; Picaud, J-C; Shamir, R et al

in Clinical Nutrition (in press)

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See detailUn parcours dans la psychologie clinique et la psychiatrie à l’Université de Liège : singularités et originalités
Mormont, Christian ULg; Englebert, Jérôme ULg

in Genin, Vincent (Ed.) Deux siècles au service des sciences humaines : Contribution(s) de l’Université de Liège 1817-2017 (in press)

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See detailLes corps saints des catacombes de Rome aux Pays-Bas : acteurs, réseaux, flux
Delfosse, Annick ULg

in Duhamelle, Christophe; Bacciochi, Stéphane (Eds.) Les corps saints des catacombes dans l’espace de la catholicité à l’âge moderne (XVIIe-XIXe siècles) (in press)

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See detailCharting ongoing change: the emergent complex subordinators the moment (that) and for fear (that)
Davidse, Kristin; Brems, Lieselotte ULg; Smith, Adam

in e-Varieng: Exploring Recent Diachrony: Corpus Studies of Lexicogrammar and Language Practices in Late Modern English (in press)

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See detailDépression unipolaire et personnalité prémorbide : version francophone du Criteria for Typus Melancholicus
Englebert, Jérôme ULg; Stanghellini, Giovanni; Calderazzo, Déborah et al

in Psychologie Française (in press)

The Typus Melancholicus (TM) is a pre-melancholic personality structure, defined by Tellenbach and Kraus and characterized by the orderliness, conscientiousness, norm orientation and intolerance of ... [more ▼]

The Typus Melancholicus (TM) is a pre-melancholic personality structure, defined by Tellenbach and Kraus and characterized by the orderliness, conscientiousness, norm orientation and intolerance of ambiguity. This study aims to discriminate the existence of a subgroup TM, among a unipolar depressive population. In order to prove the existence of this subgroup, we translated and administrated the Criteria for Typus Melancholicus (CTM) to a sample of 20 unipolar patients and 20 control participants. The research hypothesis was to find a similar proportion to the one observed in the literature (50% of TM in the unipolar sample). The results demonstrate, as expected, that half of the unipolar sample belongs to a homogeneous subgroup that displays the TM features. Furthermore, no control subjects displays the TM features. Those results suggest that the TM features design a coherent and typical psychopathological structure that can be found in an important proportion of unipolar depressive population. Our study identifies and confirms the existence of a distinct heterogeneity (TM/noTM) inside the unipolar group. This distinction opens the door to some important perspectives in terms of therapy. [less ▲]

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See detailOnderhandelen over vorming van een meerderheid en burgemeester worden in België : Welke invloed heeft de regionale wetgeving ?
Grandjean, Geoffrey ULg

in Chroniques de Droit Public = Publiekrechtelijke Kronieken (in press)

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