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See detailNo favorable effect of reduced tillage on microbial community diversity in a silty loam soil (Belgium)
Degrune, Florine ULg; Theodorakopoulos, Nicolas ULg; Dufrêne, Marc ULg et al

in Agriculture, Ecosystems & Environment (2016)

Among the soil management practices used to promote sustainable agriculture, reduced tillage and retention of residues from the previous crop are reported to enhance significantly both soil fertility and ... [more ▼]

Among the soil management practices used to promote sustainable agriculture, reduced tillage and retention of residues from the previous crop are reported to enhance significantly both soil fertility and crop productivity. Here, high-throughput sequencing (454 technology) was used to see how the tillage regime (conventional vs. reduced tillage) and the fate of crop residues (retention or removal) affect microbial communities at two sampling depths (top soil: 0–5 cm and deeper soil: 15–20 cm) in a fertile silty loam soil in Belgium. All combinations of these three factors were studied. After 6 years of conversion from conventional to reduced tillage, depth emerged as the main factor responsible for variation in microbial diversity, tillage regime ranked second, and finally, crop residue fate had no influence on microbial diversity. For both bacteria and fungi, the diversity appeared higher in the top soil than in the deeper soil, and surprisingly, higher under conventional than under reduced tillage. These differences are explained by changes in community composition due to taxon loss rather than taxon replacement. The specific local set of environmental conditions (a loess-derived soil and an oceanic temperate climate) may explain these results. These observations raise the question: does impoverishment in indicator taxa influence soil processes, and thus crop production? To answer this question, we discuss how the presence of certain indicator taxa liable to play an ecological role might relate to crop productivity. [less ▲]

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See detailLa démarche d'évaluation
Fallon, Catherine ULg; Dethier, Jean Louis

in Albarello, Luc; Aubin, David; Fallon, Catherine (Eds.) et al Penser l'évaluation des politiques publiques (2016)

'évaluation permet aux parties prenantes – parlementaires, administration, partenaires ou simples citoyens – de se forger un jugement sur l'action des pouvoirs publics dont la complexité tend à rendre la ... [more ▼]

'évaluation permet aux parties prenantes – parlementaires, administration, partenaires ou simples citoyens – de se forger un jugement sur l'action des pouvoirs publics dont la complexité tend à rendre la gestion publique de plus en plus opaque. Elle consiste à mesurer les effets propres d'une politique : l’action des pouvoirs publics a-t-elle ou non contribué à atteindre l’objectif fixé, en tout ou partie ? À quel prix ? Des méthodologies ont été développées et expérimentées par des chercheurs spécialisés et la mobilisation de ces méthodes scientifiquement validées permet de professionnaliser et de préciser l’évaluation. Quand une évaluation est menée de façon pluraliste, transparente et reproductible, la discussion publique de ses résultats ne peut qu'améliorer le fonctionnement de notre système démocratique. C’est dans cet effort de compréhension de ce qu’est l’évaluation d’une politique publique que cet ouvrage s’inscri [less ▲]

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See detailL'évaluation des politiques publiques et l'accroissement exponentiel des données
Albarello, Luc; Fallon, Catherine ULg

in Albarello, Luc; Aubin, David; Fallon, Catherine (Eds.) et al Penser l'évaluation des politiques publiques (2016)

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See detailPlatelet-rich plasma (PRP) to treat chronic patellar tendinopathies: comparison of a single versus two closely-timed injections
Kaux, Jean-François ULg; Libertiaux, Vincent ULg; Croisier, Jean-Louis ULg et al

in Muscles, Ligaments and Tendons Journal (2016), 5(4 (eCollection 2015 Oct-Dec)), 297-298

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See detailEmergency department bed coordination: burden and pitfalls.
GILLET, Aline ULg; Minder, Anaïs ULg; Nyssen, Anne-Sophie ULg et al

Conference (2016, January 30)

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See detailLes Q-codes ; Une table des matières pour la médecine générale
Jamoulle, Marc ULg

Conference (2016, January 30)

Présentaion en français de l'état d'avancement des travaux sur les Q-codes

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See detailIntérêt d'une approche personnalisée de l'HTA
Krzesinski, Jean-Marie ULg

Scientific conference (2016, January 30)

Présentation d'un cas clinique : Attitude thérapeutique chez un hypertendu confirmé NON compliqué, de race noire.

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See detailImportance des différentes formes d'hypertension artérielle en pratique clinique
Krzesinski, Jean-Marie ULg

Scientific conference (2016, January 30)

Définition et classification de la PA en consultation. Prévention de l'HTA et des risques CV. Caractéristiques de l'HTA selon l'âge. Traitement et recommandations ESH 2013.

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See detailUn laboratoire d'auto-immunité paperless: mythe ou réalité?
LUTTERI, Laurence ULg

Conference (2016, January 29)

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See detailSalt but not glucocorticoïds enhances Th17 differentiation from naïve T cells in vitro
Delens, Loïc ULg; SERVAIS, Sophie ULg; Vrancken, Louise et al

Poster (2016, January 29)

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See detailCo-simulation of Electromagnetic Transients and Phasor Models of Electric Power Systems
Plumier, Frédéric ULg

Doctoral thesis (2016)

This study investigates and improves methods used for the combination of phasor and electromagnetic transients time domain simulations of power systems. It involves the study of the protocols of ... [more ▼]

This study investigates and improves methods used for the combination of phasor and electromagnetic transients time domain simulations of power systems. It involves the study of the protocols of computation, the comparison of the different kinds of boundary conditions used to represent one sub-system when simulating the other, and the interfacing of phasor and electromagnetic transients models. The Nordic system has been used to realize the tests. Illustrative simulation results are reported for the case of a single and of multiple boundary buses between the sub-systems. [less ▲]

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See detailOne day walk
Gantois, Gisele ULg

Scientific conference (2016, January 29)

One day walk Within my research I’m trying to find methods and tools to trace, unveil and map social & ecological values of built heritage in rural areas. In this contribution I’d like to discuss one of ... [more ▼]

One day walk Within my research I’m trying to find methods and tools to trace, unveil and map social & ecological values of built heritage in rural areas. In this contribution I’d like to discuss one of the methods I developed namely ‘A protocol for walking.’ The approach focuses on thinking through walking and drawing rather than an attempt to directly resolve or structure a problem. It aims at triggering curiosity not necessarily resulting in a solution or a conclusion while following a non-linear path. Walking acts like a starting trigger to investigate the cultural landscape and aims at generating and facilitating a thought process. It is therefore a way of reflecting. While walking, the act of watching closely can lead to real closeness and might help to gain insight into people’s and other living creatures attitudes, value system, concerns, motivations, aspirations, culture and behaviours and their interaction with space. As one needs the sharp eye to discover even the most trusted things, the act of drawing while walking becomes a way of observing. The drawing turns into a tool for the eye and makes one seeing things differently. The essential concept in this methodology is to approach the problem in an indirect way by postponing the problem. This is a way of tackling the uncertainty of the ‘ill-defined’ nature of the problem statement as values and significances cannot easily or clearly be defined. [less ▲]

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See detailCaught in the middle: the Maisierian, a lithic tradition between two worlds
Touzé, Olivier ULg

Conference (2016, January 29)

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See detailData-driven selection of the minimum-gradient support parameter in time-lapse focused electrical imaging
Nguyen, Frédéric ULg; Kemna, Andreas; Robert, Tanguy et al

in Geophysics (2016), 81(1), 1-5

We have considered the problem of the choice of the minimum-gradient support (MGS) parameter in focused inversion for time-lapse (TL) electric resistivity tomography. Most existing approaches have relied ... [more ▼]

We have considered the problem of the choice of the minimum-gradient support (MGS) parameter in focused inversion for time-lapse (TL) electric resistivity tomography. Most existing approaches have relied either on an arbitrary choice of this parameter or one based on the prior information, such as the expected contrast in the TL image. We have decided to select the MGS parameter using a line search based on the value of the TL data root-mean-square misfit at the first iteration of the nonlinear inversion procedure. The latter was based on a Gauss-Newton scheme minimizing a regularized objective function in which the regularization functional was defined by the MGS functional. The regularization parameter was optimized to achieve a certain target level, following the Occam principles. We have validated our approach on a synthetic benchmark using a complex and heterogeneous model and determined its effectiveness on electric tomography TL data collected during a salt tracer experiment in fractured limestone. Our results have determined that the approach was successful in retrieving the focused anomaly and did not rely on prior information. [less ▲]

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See detailTwo cases of atypical CALR mutations in MPN patients
SAGOT, Clémence ULg; CHARLIER, Hélène ULg; KOOPMANSCH, Benjamin ULg et al

Poster (2016, January 29)

Detailed reference viewed: 22 (4 ULg)