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See detailFasciola hepatica: An assessment of the vectorial capacity of Radix labiata and R. balthica commonly found in Belgium
Caron, Yannick ULg; Lasri, Saadia; Losson, Bertrand ULg

Conference (2007, August)

A previous study in Belgium revealed that genetic material of Fasciola sp. was present in four local snail species: Galba truncatula, Radix peregra, Radix ovata and Lymnaea stagnalis. Laboratory cultures ... [more ▼]

A previous study in Belgium revealed that genetic material of Fasciola sp. was present in four local snail species: Galba truncatula, Radix peregra, Radix ovata and Lymnaea stagnalis. Laboratory cultures of these four species were experimentally infected with F. hepatica. The collected metacercariae were fed to rats and the infection in that vertebrate hosts was monitored through several techniques. The mortality rates in the breeding unit was less than 10 % in G. truncatula, R. peregra, and L. stagnalis colonies. Microscopy revealed the presence of larval stages in 78.3 % and 48 % of G. truncatula and R. peregra snails, respectively. These data were confirmed by a PCR that amplifies a parasite specific sequence. R. peregra shed fewer metacercariae and more irregularly than G. truncatula. In R. ovata and L. stagnalis the infection rates were low. Specific DNA was detected in both cases by PCR but no metacercariae were shed. The metacercariae shed by R. peregra were as infective to rats as those from G. truncatula. The PCR technique was more sensitive than microscopic examination. This study demonstrated that R. peregra may act as an accidental intermediate host for F. hepatica in Belgium. [less ▲]

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See detailFasciola hepatica: an assessment on the vectorial capacity of Radix labiata and R. balthica commonly found in Belgium.
Caron, Yannick ULg; LASRI, Saadia ULg; Losson, Bertrand ULg

in Veterinary Parasitology (2007), 149(1-2), 95-103

A previous study conducted in Belgium revealed that genetic material of Fasciola sp. was present in snail species belonging to the genus Radix. Here, these snails were collected and identified by DNA ... [more ▼]

A previous study conducted in Belgium revealed that genetic material of Fasciola sp. was present in snail species belonging to the genus Radix. Here, these snails were collected and identified by DNA-based techniques as Radix labiata and Radix balthica. These two species and Galba truncatula (the major intermediate host in Europe) were experimentally infected with Fasciola hepatica. The resulting metacercariae were fed to rats and the infection was monitored using several techniques. Microscopy revealed the presence of larval stages in 78.3, 45, and 6.25% of G. truncatula, R. labiata, and R. balthica snails, respectively. These results were confirmed by a PCR that amplifies a Fasciola sp. specific sequence. Furthermore, this PCR was found to be more sensitive than microscopic examination. R. labiata shed fewer metacercariae than G. truncatula but these were as infective to rats as those shed by G. truncatula. This study demonstrates that R. labiata may act as an incidental intermediate host for F hepatica in Belgium. (C) 2007 Elsevier B.V. All rights reserved. [less ▲]

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See detailFascismo senza fascismo? Indovini e revenants nella cultura popolare italiana (1899-1919 e 1989-2009)
Curreri, Luciano ULg; Foni, Fabrizio

Book published by Nerosubianco (2011)

Detailed reference viewed: 8 (1 ULg)
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See detailLa fase terminale della malattia oncologica: uno studio nell'ottica della teoria dell'attaccamento
Calvo, Vincenzo; Marinelli, Sara; Mania, Adriana et al

in Congresso della Sezione di Psicologia Clinica e Dinamica - AIP (2011, September)

La presente ricerca aveva lo scopo di studiare le influenze dello stile di attaccamento adulto sulla qualità del supporto emotivo fra il paziente oncologico e il suo caregiver di riferimento e ... [more ▼]

La presente ricerca aveva lo scopo di studiare le influenze dello stile di attaccamento adulto sulla qualità del supporto emotivo fra il paziente oncologico e il suo caregiver di riferimento e sull’alleanza di lavoro con i medici di reparto, durante il ricovero in una struttura hospice, specializzata nella gestione della fase terminale della malattia. Poiché lo stile di attaccamento adulto sembra giocare un ruolo importante nella gestione dello stress psicologico percepito dall’individuo nelle circostanze stressanti e nella capacità di fare affidamento sugli altri (Florian & Mikulincer, 1998), abbiamo ipotizzato che anche nella condizione di disagio estremo della fase terminale di una malattia, l’attaccamento sicuro potesse aiutare il soggetto ad affrontare le difficoltà del momento e che, invece, un attaccamento insicuro tendesse ad aumentare la vulnerabilità e l’angoscia (Mikulincer & Orbach, 1995). Lo studio si è proposto di verificare l’ipotesi secondo cui lo stile di attaccamento tenda a influenzare due aspetti importanti della fase terminale della malattia: la qualità del supporto emotivo dato dalla relazione con il caregiver e la qualità dell’alleanza di lavoro con il medico curante. Ci aspettavamo che i malati con attaccamento sicuro tendessero a percepire più positivamente la qualità del supporto emotivo con il caregiver e, analogamente, a valutare più favorevolmente l’alleanza di lavoro con il medico, rispetto ai pazienti insicuri. [less ▲]

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See detailFASST - fMRI Artefact rejection and Sleep Scoring Toolbox
Phillips, Christophe ULg; Schrouff, Jessica ULg; Coppieters, Dorothée ULg et al

Software (2007)

"FASST" stands for "fMRI Artefact rejection and Sleep Scoring Toolbox". This M/EEG toolbox is developed by researchers from the Cyclotron Research Centre, University of Li ege, Belgium, with the financial ... [more ▼]

"FASST" stands for "fMRI Artefact rejection and Sleep Scoring Toolbox". This M/EEG toolbox is developed by researchers from the Cyclotron Research Centre, University of Li ege, Belgium, with the financial support of the Fonds de la Recherche Scienti que-FNRS, the Queen Elizabeth's funding, and the University of Li ege. On Dr. Pierre Maquet's impulse we started writing these tools to analyze our sleep EEG-fMRI data and tackle four crucial issues: * Continuous M/EEG. Long multi-channel recording of M/EEG data can be enormous. These data are cumbersome to handle as it usually involves displaying, exploring, comparing, chunking, appending data sets, etc. * EEG-fMRI. When recording EEG and fMRI data simultaneously, the EEG signal acquired contains, on top of the usual neural and ocular activity, artefacts induced by the gradient switching and high static eld of an MR scanner. The rejection of theses artefacts is not easy especially when dealing with brain spontaneous activity. * Scoring M/EEG. Reviewing and scoring continuous M/EEG recordings, such as is common with sleep recordings, is a tedious task as the scorer has to manually browse through the entire data set and give a \score" to each time-window displayed. * Waves detection. Continuous and triggerless recordings of M/EEG data show specifi c wave patterns, characteristic of the subject's state (e.g., sleep spindles or slow waves). Their automatic detection is thus important to assess those states. [less ▲]

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See detailFASST- a FMRI Artefact rejection and Sleep Scoring Toolbox
Schrouff, Jessica ULg; Leclercq, Yves ULg; Noirhomme, Quentin ULg et al

Poster (2011, June 28)

We started writing the “fMRI artefact rejection and sleep scoring toolbox”, or “FASST”, to process our sleep EEG-fMRI data, that is, the simultaneous recording of electroencephalographic and functional ... [more ▼]

We started writing the “fMRI artefact rejection and sleep scoring toolbox”, or “FASST”, to process our sleep EEG-fMRI data, that is, the simultaneous recording of electroencephalographic and functional magnetic resonance imaging data acquired while a subject is asleep. FAST tackles three crucial issues typical of this kind of data: (1) data manipulation (viewing, comparing, chunking, etc.) of long continuous M/EEG recordings, (2) rejection of the fMRI-induced artefact in the EEG signal, and (3)manual sleep-scoring of the M/EEG recording. Currently, the toolbox can efficiently deal with these issues via a GUI, SPM8 batching system or handwritten script. The tools developed are, of course, also useful for other EEG applications, for example, involving simultaneous EEG-fMRI acquisition, continuous EEG eye-balling, and manipulation. Even though the toolbox was originally devised for EEG data, it will also gracefully handle MEG data without any problem. “FAST” is developed in Matlab as an add-on toolbox for SPM8 and, therefore, internally uses its SPM8-meeg data format. “FAST” is available for free, under the GNU-GPL. [less ▲]

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See detailFast 2D model-to-image registration using vanishing points for sports video analysis
Hayet, Jean-Bernard; Piater, Justus ULg; Verly, Jacques ULg

Conference (2005)

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See detailFast 3D finite element - boundary element analysis of induction heaters with passive and active shielding
V Sabariego, Ruth ULg; Sergeant, Peter; Gyselinck, Johan et al

in Proceedings of Progress in Electromagnetics Research Symposium (PIERS2004) (2004)

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See detailFast Ambient Pressure Thermal cycling of space solar arrays samples under equivalent AM0 illumination conditions
Guiot, Marc ULg; Fernandez Lisbona, Emilio; Witteveen, Bob et al

Conference (2014, June 08)

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See detailFAST ANALYSIS OF RAPESEED GLUCOSINOLATES BY NEAR-INFRARED REFLECTANCE SPECTROSCOPY
Biston, R.; Dardenne, P.; Cwikowski, M. et al

in Journal of the American Oil Chemists' Society (1988), 65(10), 1599-1600

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See detailFast and accurate modelling of longitudinal and repeated measures neuroimaging data.
Guillaume, Bryan ULg; Hua, Xue; Thompson, Paul et al

in NeuroImage (2014), 94

Despite the growing importance of longitudinal data in neuroimaging, the standard analysis methods make restrictive or unrealistic assumptions (e.g., assumption of Compound Symmetry--the state of all ... [more ▼]

Despite the growing importance of longitudinal data in neuroimaging, the standard analysis methods make restrictive or unrealistic assumptions (e.g., assumption of Compound Symmetry--the state of all equal variances and equal correlations--or spatially homogeneous longitudinal correlations). While some new methods have been proposed to more accurately account for such data, these methods are based on iterative algorithms that are slow and failure-prone. In this article, we propose the use of the Sandwich Estimator method which first estimates the parameters of interest with a simple Ordinary Least Square model and second estimates variances/covariances with the "so-called" Sandwich Estimator (SwE) which accounts for the within-subject correlation existing in longitudinal data. Here, we introduce the SwE method in its classic form, and we review and propose several adjustments to improve its behaviour, specifically in small samples. We use intensive Monte Carlo simulations to compare all considered adjustments and isolate the best combination for neuroimaging data. We also compare the SwE method to other popular methods and demonstrate its strengths and weaknesses. Finally, we analyse a highly unbalanced longitudinal dataset from the Alzheimer's Disease Neuroimaging Initiative and demonstrate the flexibility of the SwE method to fit within- and between-subject effects in a single model. Software implementing this SwE method has been made freely available at http://warwick.ac.uk/tenichols/SwE. [less ▲]

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See detailA fast and facile synthetic route toward the preparation of nanoparticles of polythiophene and its derivatives
Bozukova, Dimitriya; Jérôme, Robert ULg; Jérôme, Christine ULg

in Journal of Nanoparticle Research (2013), 15(4), 15831-18

A novel photochemical water-based approach for the preparation of nanoparticles of polymerized thiophene (Th), thiophene methanol (ThM), or their mixtures (Th-co/or-ThM) was developed. The influence of 3 ... [more ▼]

A novel photochemical water-based approach for the preparation of nanoparticles of polymerized thiophene (Th), thiophene methanol (ThM), or their mixtures (Th-co/or-ThM) was developed. The influence of 3-[(2-acryloyloxy)methyl] thiophene (ATh) as cross-link agent on the stability of the nanoparticles and on their performances was investigated. The occurrence of a polymerization process was confirmed by Fourier transform infrared (FT-IR), UV and fluorescence emission spectroscopies. Nanoparticles with very narrow size distribution (0.0092–0.105 ATh cross-linked, 0.0635–0.272 uncross-linked) and ideal spherical shape (radius 35–47 nm ATh cross-linked, 49–109 nm uncross-linked) were obtained whatever the reaction composition. The size of the particles was found to depend strongly on the level of ATh-stabilization and to diminish upon increase of the ATh content. In contrast, in the same order, their thermal stability shifted toward higher temperatures. Thermal decomposition of the nanoparticles led to formation of carbon-nanoobjects, as observed by transmission electron microscopy, FT-IR, and RAMAN spectroscopies. The re-dispersibility of the dry Th-co/or-ThM nanoparticles in some conventional monomers and solvents has been estimated. [less ▲]

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See detailFast and high yield recovery of arabinose from destarched wheat bran
Aguedo, Mario ULg; Vanderghem, Caroline ULg; Goffin, Dorothée ULg et al

in Industrial Crops & Products (2013), 43

Enzymatically destarched wheat bran (DWB) contained 13.8% of arabinose and 23.1% xylose. Up to a maximum of 70% of the arabinose was progressively released from DWB when heated at 80 or 100°C in media ... [more ▼]

Enzymatically destarched wheat bran (DWB) contained 13.8% of arabinose and 23.1% xylose. Up to a maximum of 70% of the arabinose was progressively released from DWB when heated at 80 or 100°C in media acidified with HCl. Whereas microwave irradiation at higher temperatures in pressure vessels could lead to higher yields of extraction. A Box-Behnken experimental design established an efficient model describing the effects of temperature, irradiation duration and pH on arabinose extraction. The pH appeared as the most important factor of the process. 4-5 min of microwave heating at 150ºC and pH 1 appeared as a fast and highly efficient method to recover more than 90% of the arabinose of DWB. When plotting the percentages of arabinose against the combined severity factors LogR’0 (calculated from the temperature/duration/pH conditions applied), two different fitting profiles were obtained for both the heating techniques. Under microwave heating, high free xylose’s release could also occur. The experimental design led to a quadratic model predicting the release of xylose from DWB. A range of conditions enabled to minimize xylose and hydrolyze around 50% of the total arabinose, yielding a high purity fraction. An alternative would be to release more than 90% of both arabinose and xylose, for further arabinose purification or for a common valorization of both pentoses. [less ▲]

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See detailFast And Reliable Chromatographic Procedure For The Purification Of Virginiamycin M-1 Factor
Nott, Katherine ULg; Paquot, Michel ULg; Heilporn, Sylvie et al

in Chromatographia (2002), 56(5-6),

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See detailFast and Reliable Method for the Preparation of Various [18F]Fluorobenzyl Halides
Lemaire, Christian ULg; Libert, Lionel ULg; Plenevaux, Alain ULg et al

in Journal of Labelled Compounds & Radiopharmaceuticals (2009, July), 52(S1), 178

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See detailFast and sharp decrease in calprotectin predicts remission by infliximab in anti-TNF naive patients with ulcerative colitis.
De Vos, M.; Dewit, Olivier; D'Haens, G. et al

in Journal of Crohn’s and Colitis [=JCC] (2012), 6(5), 557-62

AIM: To evaluate the effect of infliximab induction therapy on calprotectin levels in patients with ulcerative colitis (UC). PATIENTS AND METHODS: In this prospective study 53 patients with active UC from ... [more ▼]

AIM: To evaluate the effect of infliximab induction therapy on calprotectin levels in patients with ulcerative colitis (UC). PATIENTS AND METHODS: In this prospective study 53 patients with active UC from 17 centers were treated with infliximab therapy (5 mg/kg) at baseline, week 2, and week 6. Faecal calprotectin was measured every week. Sigmoidoscopies were performed at baseline, week 6 and week 10. RESULTS: Median calprotectin levels decreased from 1260 (IQR 278.5- 3418) at baseline to 72.5 (IQR 18.5 - 463) at week 10 (p<0.001). After 10 weeks, infliximab therapy induced endoscopic remission and a decrease in calprotectin to<50 mg/kg or at least a 80% decrease from baseline level in 58% of patients. A significant and steep decrease of calprotectin levels was seen at week 2 for patients with an endoscopic remission at week 10 as compared to patients who did not show a remission. (p<0.001). At week 10 an excellent correlation was found between endoscopic remission and clinical Mayo score reflected by an AUC of ROC analyses of 0.94 (0.87-1) and with calprotectin measurements (AUC 0.91 (0.81-1)) : all patients with calprotectin levels <50 mg/kg, and a normal clinical Mayo score (=0) were in endoscopic remission. CONCLUSIONS: Infliximab induces a fast and significant decrease of faecal calprotectin levels in anti-TNF naive patients with ulcerative colitis predictive for remission of disease. [less ▲]

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See detailFast and slow spindle involvement in the consolidation of a new motor sequence
Barakat, M.; Doyon, J.; Debas, K. et al

in Behav Brain Res (2011), 217(1), 117-21

This study aimed to determine the distinct contribution of slow (11-13 Hz) and fast (13-15 Hz) spindles in the consolidation process of a motor sequence learning task (MSL). Young subjects (n = 12) were ... [more ▼]

This study aimed to determine the distinct contribution of slow (11-13 Hz) and fast (13-15 Hz) spindles in the consolidation process of a motor sequence learning task (MSL). Young subjects (n = 12) were trained on both a finger MSL task and a control (CTRL) condition, which were administered one week apart in a counterbalanced order. Subjects were asked to practice the MSL or CTRL task in the evening (approximately 9:00 p.m.) and their performance was retested on the same task 12h later (approximately 9:00 a.m.). Polysomnographic (PSG) recordings were performed during the night following training on either task, and an automatic algorithm was used to detect fast and slow spindles and to quantify their characteristics (i.e., density, amplitude, and duration). Statistical analyses revealed higher fast (but not slow) spindle density after training on the MSL than after practice of the CTRL task. The increase in fast spindle density on the MSL task correlated positively with overnight performance gains on the MSL task and with difference in performance gain between the MSL and CTRL tasks. Together, these results suggest that fast sleep spindles help activate the cerebral network involved in overnight MSL consolidation, while slow spindles do not appear to play a role in this mnemonic process. [less ▲]

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See detailFast and slow tracks in lysozyme folding: Insight into the role of domains in the folding process
Matagne, André ULg; Radford, S. E.; Dobson, C. M.

in Journal of Molecular Biology (1997), 267(5), 1068-1074

The folding of lysozyme involves parallel events in which hydrogen exchange kinetics indicate the development of persistent structure at very different rates. We have monitored directly the kinetics of ... [more ▼]

The folding of lysozyme involves parallel events in which hydrogen exchange kinetics indicate the development of persistent structure at very different rates. We have monitored directly the kinetics of formation of the native molecule by the binding of a fluorescently labelled inhibitor, MeU-diNAG (4-methylumbelliferyl-N,N'-diacetyl-beta-D-chitobioside). The data show that native character monitored in this way also develops with different timescales. Although the rate determining step on the slow pathway (similar to 75% of molecules at pH 5.5, 20 degrees C) can be attributed to the need to reorganise structure formed early in the folding process, the data indicate that the rate determining step on the fast track (involving similar to 25% of molecules) involves the docking of the two constituent domains of the protein. In the fast folding track the data are consistent with a model in which each domain forms persistent structure prier to their docking in a locally cooperative manner on a timescale comparable to the folding of small single domain proteins. (C) 1997 Academic Press Limited. [less ▲]

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