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See detailDesign status of ASPIICS, an externally occulted coronagraph for PROBA-3
Renotte, Etienne ULg; Alia, A.; Bemporad, A. et al

in Proc. SPIE Volume 9604 Solar Physics and Space Weather Instrumentation VI (2015, September 21)

The “sonic region” of the Sun corona remains extremely difficult to observe with spatial resolution and sensitivity sufficient to understand the fine scale phenomena that govern the quiescent solar corona ... [more ▼]

The “sonic region” of the Sun corona remains extremely difficult to observe with spatial resolution and sensitivity sufficient to understand the fine scale phenomena that govern the quiescent solar corona, as well as phenomena that lead to coronal mass ejections (CMEs), which influence space weather. Improvement on this front requires eclipse-like conditions over long observation times. The space-borne coronagraphs flown so far provided a continuous coverage of the external parts of the corona but their over-occulting system did not permit to analyse the part of the white-light corona where the main coronal mass is concentrated. The proposed PROBA-3 Coronagraph System, also known as ASPIICS (Association of Spacecraft for Polarimetric and Imaging Investigation of the Corona of the Sun), with its novel design, will be the first space coronagraph to cover the range of radial distances between ~1.15 and 3 solar radii where the magnetic field plays a crucial role in the coronal dynamics, thus providing continuous observational conditions very close to those during a total solar eclipse. PROBA-3 is first a mission devoted to the in-orbit demonstration of precise formation flying techniques and technologies for future European missions, which will fly ASPIICS as primary payload. The instrument is distributed over two satellites flying in formation (approx. 150m apart) to form a giant coronagraph capable of producing a nearly perfect eclipse allowing observing the sun corona closer to the rim than ever before. The coronagraph instrument is developed by a large European consortium including about 20 partners from 7 countries under the auspices of the European Space Agency. This paper is reviewing the recent improvements and design updates of the ASPIICS instrument as it is stepping into the detailed design phase. [less ▲]

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See detailCeci n’est pas un conseil !
Choffray, Jean-Marie ULg

E-print/Working paper (2015)

La « Grande Récession de 2008 » a un mérite. Un seul ! Elle a rendu public le fait que personne ne savait exactement ce qui s’était passé, ni ce qui se passait. Pourquoi une telle crise de confiance avait ... [more ▼]

La « Grande Récession de 2008 » a un mérite. Un seul ! Elle a rendu public le fait que personne ne savait exactement ce qui s’était passé, ni ce qui se passait. Pourquoi une telle crise de confiance avait-elle vu le jour ? Quelles en seraient les conséquences ? Toutes et tous se sont trompés, y compris les meilleurs. Même celles et ceux qui étaient convaincus d’avoir raison ! Plus que jamais, l’incertitude, la saine et souveraine incertitude, garantit la liberté de l’investisseur... et du professeur ! [less ▲]

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See detailArabie saoudite et Etats-Unis: un divorce annoncé
Hermans, Michel ULg; Ernst, Damien ULg

Article for general public (2015)

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See detailPathways of recurrent high-grade squamous intraepithelial lesions of the cervix
Herfs, Michael ULg

Conference (2015, September 20)

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See detailMarkets flash graphs
Choffray, Jean-Marie ULg

E-print/Working paper (2015)

A graph is worth a hundred words... A good graph may suggest some new heuristics. And…, a series of excellent graphs may provide the backbone of a theory! The goal of this paper is to share a set of ... [more ▼]

A graph is worth a hundred words... A good graph may suggest some new heuristics. And…, a series of excellent graphs may provide the backbone of a theory! The goal of this paper is to share a set of graphs from multiple sources that offer as many flashes on current and past market conditions. Inevitably, these graphs reflect my own biases and questionings. They are not meant to induce any action aside, maybe, from their integration in a personal Information System. The Great Recession of 2008, whose consequences are still unfolding, has been for each of us a powerful invitation to modesty. We live in a world where improbable, unthinkable and impossible events happen every day... More than ever, it’s time to sit down, shut up, watch out, build graphs, and think… hard! [less ▲]

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See detailLa consultation pour troubles du comportement à l'adolescence : importance du timing pubertaire
Glowacz, Fabienne ULg

Scientific conference (2015, September 19)

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See detailNon-invasive markers: the role of G-CSF?
Munaut, Carine ULg

Conference (2015, September 19)

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See detailEFFECT OF TRUNK MOTOR CONTROL TRAINING IN ELITE SOCCER PLAYERS WITH LOW BACK PAIN
GROSDENT, Stéphanie ULg; Demoulin, Christophe ULg; Rodriguez de la Cruz, Carlos ULg et al

Poster (2015, September 18)

Background and aims: The purpose of this study was to examine the effect of a motor control training program on the lumbopelvic motor control (LMC) in elite soccer players with a history of low back pain ... [more ▼]

Background and aims: The purpose of this study was to examine the effect of a motor control training program on the lumbopelvic motor control (LMC) in elite soccer players with a history of low back pain (LBP). Methods: Twenty-four male elite soccer players (mean age of 18.3 years) filled in questionnaires related to LBP and were divided into two groups: 12 players with a history of LBP (LBP group) and 12 players without a history of LBP (no LBP group). Then, they performed five LMC tests [the Bent Knee Fall Out test (BKFO), the Knee Lift Abdominal Test (KLAT), the Sitting Knee Extension Test (SKET), the Waiter’s Bow (WB) and the test of the transversus abdominis (TrA)] which were conducted and scored (0=failed, 1=correct) by a physiotherapist, blinded to the medical history of the participants. The total LMC score (ranging from 0 to 5) was calculated by adding the score at each test. During the following 10 weeks, the no LBP group conducted a soccer training as usual while LBP group performed an additional specific core stability program (1h/week). Results: At baseline, the participants of the LBP group had a worse LMC than the no LBP group (mean LMC score of 1.1 vs 3.1, p<0.01). The between-groups difference was particularly marked for the BKFO (p<0.01), KLAT (p<0.01) and SKET (p<0.05) tests. At the end of the intervention program, the LMC score of the players with a history of LBP increased significantly (p<0.0001) and was similar to the score of the players without a history of LBP (mean LMC score of 3.2 vs 3.3, p=1.00). Conclusions: LMC can be decreased in elite active soccer players with a history of LBP. Specific core stability program is effective to improve LMC in these players. [less ▲]

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See detailThe importance of physical educators’ representations about physical activity
Cloes, Marc ULg

Conference (2015, September 18)

Physical education (PE) teachers need to develop clear representaitons about physical activity (PA). In fact, they have to promote an active lifestyle among their pupils/students and it will not be ... [more ▼]

Physical education (PE) teachers need to develop clear representaitons about physical activity (PA). In fact, they have to promote an active lifestyle among their pupils/students and it will not be possible without developing an extended knowledge about physical activity. This presentation has been designed in order to make the PE teachers and their trainers that their representations about PA could be worse than they believe. Moreover, the interactive way of this presentation will provide an interesting example of an approach that could be used on the field. [less ▲]

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See detailEntre sympathie pour la cause et passage à l'acte: analyse du processus de dérive radicale
Garcet, Serge ULg

Scientific conference (2015, September 18)

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See detailImpact des attentes identitaires sur la nature de l'engagement individuel et la radicalisation
Garcet, Serge ULg

Scientific conference (2015, September 18)

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See detailInnovation in Veterinary Education. Innovative tools to teach pregnancy and parturition in the horse.
Hanzen, Christian ULg; Govaere, Jan

Conference (2015, September 18)

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See detailNid de coucou. De quelques performances filmées dans l'espace public.
Hamers, Jérémy ULg

Conference (2015, September 18)

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See detailDietary mineral intakes of young Tibetan children living in areas endemic for Kashin-Beck disease: preliminary results of a cross-sectional survey
DERMIENCE, Michael ULg; Mathieu, Françoise; Li, Xiaowei et al

Conference (2015, September 18)

Kashin-Beck disease (KBD) is an endemic and chronic osteochondropathy whose etiology remains unclear. Environmental factors are assumed to be involved, among which the selenium and iodine deficiency is ... [more ▼]

Kashin-Beck disease (KBD) is an endemic and chronic osteochondropathy whose etiology remains unclear. Environmental factors are assumed to be involved, among which the selenium and iodine deficiency is frequently cited. The prevalence rate may be high in some rural areas of the Tibet Autonomous Region. The diet of the rural community is significantly different from the other communities (nomads and city-dwellers), who remains unaffected by KBD. Because their foods are mainly derived from local agriculture and artisanal production, their mineral composition may show significant discrepancies when compared with food composition data. The present survey aims at assessing the mineral dietary intakes of young Tibetan children living in rural areas endemic for the Kashin-Beck disease. A cross-sectional survey enrolling 250 children was carried out. The intakes were recorded for two days, on two different seasons, by the 24-hour food recall method. The minerals investigated were selected for their implication in bone metabolism and a specific food composition table was compiled from the China Food composition (book 1, 2nd edition), the USDA Food search for Windows (Version 1.0, Database version SR23), and a broad investigation on mineral composition of local and traditional Tibetan foods (Dermience et al., 2014). The calculation of daily intakes for the first season is now complete and some trends are emerging. Preliminary results suggest, inter alia, that the intakes of calcium are too low with unfavorable calcium to phosphorus ratio. On the contrary, sodium and manganese intakes are too high and could exceed tolerable upper levels. [less ▲]

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See detailCours No 1: Astrophysique et Techniques Spatiales: Ingés aéro/ Ingés Phys 2015-2016 (Fichier PDF + vidéos: mov)
Surdej, Jean ULg

Learning material (2015)

Dans la première partie du cours consacré à l'astrophysique galactique, nous étudierons les propriétés globales des astres (luminosités, couleurs, distances, masses, rayons). Dans la seconde partie, nous ... [more ▼]

Dans la première partie du cours consacré à l'astrophysique galactique, nous étudierons les propriétés globales des astres (luminosités, couleurs, distances, masses, rayons). Dans la seconde partie, nous aborderons l'étude des astres extragalactiques. Enfin, la troisième partie du cours sera consacrée à la compréhension des instruments et télescopes modernes utilisés tant au sol que dans l'espace. [less ▲]

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See detailSoluble biomarkers in OA: can they be used as indicator of HA re-injection?
Henrotin, Yves ULg

Conference (2015, September 18)

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See detailBreakthrough in cardiac arrest: reports from the 4th Paris International Conference.
Kudenchuk, PJ; Sandroni, C; Drinhaus, HR et al

in Annals of Intensive Care (2015)

Jean-Luc Diehl The French Intensive Care Society organized on 5th and 6th June 2014 its 4th Paris International Conference in Intensive Care", whose principle is to bring together the best international ... [more ▼]

Jean-Luc Diehl The French Intensive Care Society organized on 5th and 6th June 2014 its 4th Paris International Conference in Intensive Care", whose principle is to bring together the best international experts on a hot topic in critical care medicine. The 2014 theme was "Breakthrough in cardiac arrest", with many high-quality updates on epidemiology, public health data, pre-hospital and in-ICU cares. The present review includes short summaries of the major presentations, classified into six main chapters: Epidemiology of CA Pre-hospital management Post-resuscitation management: targeted temperature management Post-resuscitation management: optimizing organ perfusion and metabolic parameters Neurological assessment of brain damages Public healthcare." [less ▲]

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See detailWhat Darkens the Greenland Ice Sheet?
Tedesco, M; Doherty, S.; Warren, S. et al

in EOS : Transactions, American Geophysical Union (2015)

Most of the massive ice sheet that covers roughly four fifths of Greenland melts at the surface in summer. As long as the ice sheet regains its mass in the winter, this is not catastrophic. However, if ... [more ▼]

Most of the massive ice sheet that covers roughly four fifths of Greenland melts at the surface in summer. As long as the ice sheet regains its mass in the winter, this is not catastrophic. However, if the ice sheet melted entirely, sea levels would rise by more than 7 meters, with obvious and severe consequences for human civilization. Not surprisingly, scientists are working hard to determine if and when the ice sheet will transition (or if it has already transitioned) from a stable state to a net mass loss state. The impact of increasing greenhouse gas levels on the Greenland ice sheet (GrIS) depends on many complex and interacting factors. One is the ice sheet’s albedo—the fraction of incoming solar radiation that is reflected from the surface of the ice sheet. Indeed, scientists have determined that net solar radiation reaching the ice is the largest contributor to the energy balance driving melting [e.g., van den Broeke et al., 2011]. Despite the crucial role of albedo in energy balance, we have yet to quantify the role of the different processes driving it. Such an understanding is crucial to determining the past behavior of the GrIS and projecting its future contribution to sea level rise. Scientists seeking to quantify how much various factors contribute to ice sheet albedo face numerous challenges. These include intrinsic limitations in current observational capabilities (e.g., spatial and radiometric resolution of currently available spaceborne sensors) and limitations on how accurately surface energy balance models handle ice sheet albedo. Moreover, the sparseness in space and time of in situ observations of quantities such as impurity concentrations, biological processes, and grain growth impedes our ability to separate their respective contributions to broadband albedo (integrated over the entire spectrum). [less ▲]

Detailed reference viewed: 57 (3 ULg)