References of "2012"
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See detailCritique de la Kulturkritik : le déclin d’O. Spengler
Zincq, Aurélien ULg

Conference (2012, December 12)

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See detailTransformation by deltaretroviruses: mechanisms and therapies
Willems, Luc ULg

in Proceedings of the Belgian Royal Academies of Medicine (2012), 1

Human T-lymphotropic virus type 1 (HTLV-1) and bovine leukemia virus (BLV) are two closely related deltaretroviruses inducing hematological diseases in human and ruminants. HTLV-1 infects about 25 million ... [more ▼]

Human T-lymphotropic virus type 1 (HTLV-1) and bovine leukemia virus (BLV) are two closely related deltaretroviruses inducing hematological diseases in human and ruminants. HTLV-1 infects about 25 million subjects worldwide and causes Adult T-cell leukemia-lymphoma (ATLL) or HAM/TSP (HTLV-induced myelopathy - tropical spastic paraparesis). BLV is the etiological agent of enzootic bovine leukemia. HTLV-1 and BLV have developed strategies to subvert hosts' immune surveillance. Understanding these mechanisms has allowed development of novel therapeutic approaches. [less ▲]

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See detailTransformation by deltaretroviruses: mechanisms and therapies
Willems, Luc ULg

in Proceedings of the Belgian Royal Academies of Medicine (2012), 1

Human T-lymphotropic virus type 1 (HTLV-1) and bovine leukemia virus (BLV) are two closely related deltaretroviruses inducing hematological diseases in human and ruminants. HTLV-1 infects about 25 million ... [more ▼]

Human T-lymphotropic virus type 1 (HTLV-1) and bovine leukemia virus (BLV) are two closely related deltaretroviruses inducing hematological diseases in human and ruminants. HTLV-1 infects about 25 million subjects worldwide and causes Adult T-cell leukemia-lymphoma (ATLL) or HAM/TSP (HTLV-induced myelopathy - tropical spastic paraparesis). BLV is the etiological agent of enzootic bovine leukemia. HTLV-1 and BLV have developed strategies to subvert hosts' immune surveillance. Understanding these mechanisms has allowed development of novel therapeutic approaches. [less ▲]

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See detailDes modules de formation au service de la lutte contre la fracture numérique : regards sur 10 années du Plan Mobilisateur TIC.
Brundseaux, Marie-France ULg; Georges, François ULg; Verpoorten, Ingrid ULg

in NKambou (Ed.) Intégration Technologique et Nouvelles Perspectives d’Usage (2012, December 12)

This article presents the training modules which have been designed for training organisations of the Plan Mobilisateur TIC in Wallonia. This training device aims to introduce the internet to insecure ... [more ▼]

This article presents the training modules which have been designed for training organisations of the Plan Mobilisateur TIC in Wallonia. This training device aims to introduce the internet to insecure unemployed people. The authors will try to show how online learning devices have followed the evolution of digital divide between 2002 and 2012. [less ▲]

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See detailTime delays in gravitationally lensed quasars
Eulaers, Eva ULg

Doctoral thesis (2012)

Starting with a concise introduction on gravitational lensing, time delays between lensed quasars and its importance as a cosmological probe to estimate the Hubble constant, we present our contribution to ... [more ▼]

Starting with a concise introduction on gravitational lensing, time delays between lensed quasars and its importance as a cosmological probe to estimate the Hubble constant, we present our contribution to this domain. In a first part, we explain the details of the Numerical Model Fit, a method to estimate time delays between two or more lensed quasar images. We apply this technique to the light curves of 11 lensed quasars with known time delays in order to analyse these published delays in a more homogeneous way. Some results can be confirmed, but others prove to be unreliable. The second part is devoted to the most recent results of our contribution to the COSMOGRAIL collaboration. We briefly summarize the data reduction and analysis tools before the presentation of the photometry and time delay analysis of 6 lensed quasars. On top of the confirmation of time delays in two objects, SDSS J1206+4332 and SDSS J1650+4251, we are the first to measure the time delay in three doubly lensed quasar systems: HS 2209+1914, SDSS J0903+5028, and SDSS J1155+6346. The time delay analysis of the well-known quadruply lensed quasar PG 1115+080 reveals interesting elements, and asks for further investigation of longer light curves. [less ▲]

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See detailEmpathy for pain and Alexithymia : a rTMS study
Lemaire, Morgan ULg

Poster (2012, December 12)

Empathy is a multi-facet function regulating social life. In this study, we investigated empathy in relation to alexithymia. Alexithymia is considered as a state showing difficulties in identification and ... [more ▼]

Empathy is a multi-facet function regulating social life. In this study, we investigated empathy in relation to alexithymia. Alexithymia is considered as a state showing difficulties in identification and distinction of one’s own emotional life, as well as difficulties in identification/distinction of others emotions. Thus, alexithymia is considered as an empathy trouble. Previous studies demonstrated that alexithymia is characterized by a particular pattern of cerebral activation comprising some important zones of emotional control (i.e., left DLPFC hyperactivation, left ACC hypoactivation). In the present study, we investigated the electrodermal response of participants during an empathy for pain task before and after an inhibiting rTMS on the right DLPFC to facilitate the ACC activation, with the aim to enhance the emotional expression for alexithymic population. Results showed that rTMS on the right DLPFC increase the relaxation of the alexithymic participants facing the stimuli. This can match our assumptions but further research is needed to clarify this situation. [less ▲]

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See detailFranz Thedieck (1900-1995): ein deutscher Beamter im 20. Jahrhundert
Brüll, Christoph ULg

Scientific conference (2012, December 12)

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See detailTransformation by deltaretroviruses: mechanisms and therapies
Willems, Luc ULg

in Proceedings of the Belgian Royal Academies of Medicine (2012), 1

Human T-lymphotropic virus type 1 (HTLV-1) and bovine leukemia virus (BLV) are two closely related deltaretroviruses inducing hematological diseases in human and ruminants. HTLV-1 infects about 25 million ... [more ▼]

Human T-lymphotropic virus type 1 (HTLV-1) and bovine leukemia virus (BLV) are two closely related deltaretroviruses inducing hematological diseases in human and ruminants. HTLV-1 infects about 25 million subjects worldwide and causes Adult T-cell leukemia-lymphoma (ATLL) or HAM/TSP (HTLV-induced myelopathy - tropical spastic paraparesis). BLV is the etiological agent of enzootic bovine leukemia. HTLV-1 and BLV have developed strategies to subvert hosts' immune surveillance. Understanding these mechanisms has allowed development of novel therapeutic approaches. [less ▲]

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See detailHommage à Hubert Nyssen (1925-2011)
Durand, Pascal ULg; Savigneau, Josyane; Manguel, Alberto

Conference given outside the academic context (2012)

Débat public en compagnie de Josyane Savigneau, critique littéraire au Monde, et l'écrivain Alberto Manguel, à l'invitation de la Bibliothèque Nationale de France, en hommage à l'écrivain et éditeur ... [more ▼]

Débat public en compagnie de Josyane Savigneau, critique littéraire au Monde, et l'écrivain Alberto Manguel, à l'invitation de la Bibliothèque Nationale de France, en hommage à l'écrivain et éditeur Hubert Nyssen, un an après sa disparition. Lectures par le comédien Gérard Desarthe. [less ▲]

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See detailDétours de Madame Bovary
Saint-Amand, Denis ULg

Conference given outside the academic context (2012)

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See detailCoastal pollution of the Mediterranean and extension of its biomonitoring to trace elements of emerging concern
Richir, Jonathan ULg

Doctoral thesis (2012)

The Mediterranean Sea, a semi-enclosed sea with densely populated coasts, is submitted to numerous anthropogenic pressures: among them, the chemical pollution by traces elements. These pollutants, coming ... [more ▼]

The Mediterranean Sea, a semi-enclosed sea with densely populated coasts, is submitted to numerous anthropogenic pressures: among them, the chemical pollution by traces elements. These pollutants, coming from our continental activities, are transported through rivers or by air and accumulate in seas and oceans where they mainly affect coastal areas. During the 70ies, scientists suggested to use organisms, in particular mussels of the genus Mytilus, in order to evaluate the status of chemical contamination of coastal ecosystems. Biomonitoring was born. Since, many monitoring studies were published using various animal and vegetal species. Two of the most studied bioindicators species in the Mediterranean are the marine magnoliophyte Posidonia oceanica and the Mediterranean mussel Mytilus galloprovincialis. Monitoring studies with these two species have mainly focussed on contaminations by Cr, Ni, Cu, Zn, Cd, Pb (Mytilus galloprovincialis and Posidonia oceanica), Fe (Posidonia oceanica), As, V and Ag (Mytilus galloprovincialis). However, other trace elements like Be, Al, Mn, Co, Se, Mo, Sn, Sb and Bi have been subject to nearly no ecotoxicological survey. Furthermore the worldwide evolution of our technologies and of our lifestyle increases the extraction and production of trace elements (notably to answer needs of developing countries). The biomonitoring of the pollution by trace elements is henceforth a topical subject. The overall objective of this work was therefore to evaluate the potential use of Mytilus galloprovincialis and Posidonia oceanica as bioindicators to monitor the Mediterranean coastal pollution by Be, Al, Mn, Co, Se, Mo, Sn, Sb, Bi, Fe, As, V, and Ag. These trace elements, mostly little studied, can be categorized as elements of “environmental emerging concern”. A time-integrated efficient monitoring of trace elements requires the continuous survey of their environmental levels; we therefore also measured levels of trace elements classically monitored with these two species. Mytilus galloprovincialis and Posidonia oceanica complement each other in monitoring surveys. Both species accumulate pollutants dissolved in the water column. Posidonia oceanica, rooted in the seafloor, accumulates moreover pollutants stored in sediments in the long term. Mytilus galloprovincialis, as a filter feeder, further accumulate particulate pollutants suspended in the water column. The combined use of both bioindicators therefore provides a global view of the health status of the coastal environment (water, sediments, suspended matter). Our first goal was to measure, at the scale of the French Mediterranean littoral, the spatial variability of trace element contents in Posidonia oceanica, and to determine if trace elements of environmental emerging concern threaten the chemical integrity of coastal ecosystems. We observed that the large majority of trace elements little or no monitored with Posidonia oceanica showed an equivalent to higher spatial variability than elements classically monitored with that species. We also showed that the spatial variability could be associated to specific anthropic activities like agriculture (Mo), mining (Sb), storage and refinement of oil products (V), or the presence of harbours and major urban centres (Sn, Bi). Their monitoring, along with the one of trace elements classically studied in the Mediterranean, turns out to be essential. In addition, the in-depth study of the contamination state of the Calvi Bay (Northwestern coast of Corsica, France), enabled us to define (or re-define) this site as a reference site for the monitoring of the chemical pollution by trace elements in the Northwestern Mediterranean. We further studied the physiological mechanisms of accumulation, storage and excretion of trace elements by Posidonia oceanica. In situ contamination of seagrass bed portions allowed us to model the rapid kinetics of accumulation of contaminants by Posidonia oceanica shoots. Compartments of the plant answered differently to pollutant exposures. So, adult and senescent leaves assimilated pollutants less rapidly than young actively growing leaves. Trace elements, once accumulated, could be redistributed between the plant compartments, notably towards the rhizomes-roots systems buried in sediments. Our results experimentally showed that these below-ground organs could therefore play the role of biological archives for many elements. At the end of periods of exposure to pollutants, kinetics of decontaminations of Posidonia oceanica shoots were relatively fast and depended notably on the duration of the exposure to trace elements, on their toxic or essential character and on the studied compartment. We concluded that Posidonia oceanica was a sensitive bioindicator for the monitoring of the past and present coastal pollution by trace elements. We showed that Mytilus galloprovincialis efficiently accumulated trace elements of environmental emerging concern as well as elements classically studied with this bioindicator species. The physiology of mussels further conditioned their answers to pollutant exposures. Their reproductive cycle dissolved trace element concentrations during the massive production of gametes and conducted to differences more or less important between individuals of both sexes. The conservative character of the distribution of trace elements between the different body compartments of Mytilus galloprovincialis suggested an important physiological regulation of their internal levels. Finally, the size of mussels used in this study, harvested from an aquaculture farm, did not noticeably influence inter-individual concentrations, all mussels of a same rope having approximately the same age. In conclusion, this study enabled to improve and enlarge our state of knowledge about the monitoring of the pollution of the Mediterranean coastal environment by trace elements. In particular, both Mytilus galloprovincialis and Posidonia oceanica showed to be good candidates for the monitoring of trace elements of environmental emerging concern. [less ▲]

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See detailDEVELOPMENT OF FROZEN-FRIED YAM SLICES: OPTIMIZATION OF THE PROCESSING CONDITIONS
Toure, Yetioman ULg; Nindjin, Charlemagne; Brostaux, Yves ULg et al

in African Journal of Food, Agriculture, Nutrition and Development (2012), 12(7), 7055-7071

The research performed on yam processing mainly concerns the production of crisps and flour. However, its transformation into deep-frozen French fries does not necessitate any other equipment than those ... [more ▼]

The research performed on yam processing mainly concerns the production of crisps and flour. However, its transformation into deep-frozen French fries does not necessitate any other equipment than those used for potatoes. The industrial process of production of frozen French fries traditionally includes a pre-frying step. These steps contribute to the development of color and crispness, and the oil partially absorbed inhibits dehydration during the freezing step. The aim of this study was to optimize frying conditions of deep-frozen fried yam (Dioscorea cayenensis var Kponan) slices. The effect of pre-frying time and temperature, final frying time and temperature on the oil uptake, texture, dry matter and colour of the fried yam slices has been studied. Frying conditions optimized with Box-Behnken experimental design were short pre-frying and frying conditions at high temperature characterized by pre-frying temperature at 157-170°C during 5-9s and frying temperature at 181-188°C for 2min 15s-2min 30s; or long pre-frying and frying conditions at low temperature characterized by pre-frying temperature at 150-158°C during 10-15s and frying temperature 170-177°C for 3-3min 15s. An adiabatic system was also developed by means of an insulator in which the core temperature of fried yam slices can be maintained constant at about 55°C after 15min of cooling, facilitating texture measurements at constant temperature. The present results may help in choosing the yam slices frying condition to be applied in order to achieve the desirable fried yam slices quality, required for protection against certain diseases like obesity. These models may also provide guidance as to how to control these quality parameters by altering four key environmental factors, pre-frying temperature and time and, final frying temperature and time. This process can also be commercialized and does not necessitate any other cost for equipment than those used for potatoes French fries and might be an interesting way of added value processing for this highly perishable yam tuber. [less ▲]

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See detailLa voix juste: la science au service du chant
Larrouy, Pauline ULg; Morsomme, Dominique ULg

Scientific conference (2012, December 12)

Le chant est une activité largement répandue et partagée. Afin de déterminer si une performance vocale est « juste » ou « fausse », de mieux comprendre les causes d’un trouble de justesse ou encore de ... [more ▼]

Le chant est une activité largement répandue et partagée. Afin de déterminer si une performance vocale est « juste » ou « fausse », de mieux comprendre les causes d’un trouble de justesse ou encore de porter un jugement sur la qualité d’un chanteur, des outils d’évaluation sont nécessaires. Quatre études réalisées dans le cadre d’une thèse de Doctorat permettent de valider une méthode objective d’analyse de la justesse mais aussi d’observer les effets à prendre en compte pour une évaluation pertinente de la justesse vocale. Dans un premier temps, l’analyse de mélodies chantées par des chanteurs entraînés et non entraînés nous a permis de mettre au point une méthode d’évaluation objective de la justesse vocale sur base d’analyses acoustiques. La confrontation de cette méthode objective avec le jugement d’experts en voix ou en musique nous a permis d’affiner les critères à prendre en compte dans l’évaluation objective de la justesse. Dans un second temps, nous avons observé les effets du contexte d’évaluation et de la technique vocale sur l’évaluation de la justesse vocale. Les différents résultats mettent en évidence la possibilité d’analyser objectivement une performance vocale chantée mais également la complexité du processus de jugement. Les perspectives expérimentales, artistiques et pédagogiques seront discutées à la lumière des conclusions de ces études. [less ▲]

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See detailLes langues, encore et toujours !
Defays, Jean-Marc ULg

Conference (2012, December 12)

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See detailSections efficaces de production de rayonnement gamma sur Li et F
Debande, Vivien; Chene, Grégoire ULg; Strivay, David ULg

Poster (2012, December 11)

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See detailEn attendant la fin des temps: deux espèces d'apocalypticiens
Claisse, Frédéric ULg

Article for general public (2012)

A l'approche de la date fatidique du 21 décembre 2012, l'article revient sur la posture "catastrophiste" en insistant sur le rôle de la fiction et de l'imagination dans nos stratégies collectives d ... [more ▼]

A l'approche de la date fatidique du 21 décembre 2012, l'article revient sur la posture "catastrophiste" en insistant sur le rôle de la fiction et de l'imagination dans nos stratégies collectives d'évitement du pire. Assimilés à tort aux prophètes de malheur, les auteurs de dystopie comme Orwell ou Huxley ne nous décrivent l'avènement d'une menace que pour mieux la conjurer. Sans cette espèce d' "apocalypticiens prophylactiques", comme se décrivait Günther Anders, il est probable que notre capacité à penser la catastrophe serait sérieusement atrophiée. [less ▲]

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See detailInnovative Surface Plasmon Resonance biosensing architectures
Desfours, Caroline; Piron, Pierre ULg; Habraken, Serge ULg et al

Conference (2012, December 11)

Surface Plasmons Resonance (SPR) architectures involving multi-wavelength interrogation are an attractive alternative for droplet biosensing. We present our results for in situ measurements of biological ... [more ▼]

Surface Plasmons Resonance (SPR) architectures involving multi-wavelength interrogation are an attractive alternative for droplet biosensing. We present our results for in situ measurements of biological molecules with a two-wavelength sensor and a SPR Coupler-Disperser spectroscopic sensor. [less ▲]

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See detailQuel sens donner à l’activité et quel type d’activité pour nos aînés ?
Adam, Stéphane ULg

Conference (2012, December 11)

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See detailDetection of specific nitrated markers
REGINSTER, Jean-Yves ULg; DEBERG, Michelle ULg; Henrotin, Yves ULg et al

Patent (2012)

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