Study of the cap-like gene of Streptomyces coelicolor
Derouaux, Adeline ; ; et al
Poster (2003)Detailed reference viewed: 3 (0 ULg)
Revue de l'épidémiologie de la maladie de Crohn en Europe
Piront, Patricia ; Belaiche, Jacques ; Louis, Edouard
in Acta Endoscopica (2003), 33Detailed reference viewed: 45 (2 ULg)
Interet des expectorations induites dans l'exploration de l'asthme.
Louis, Renaud ; ; Cataldo, Didier et al
in Revue des Maladies Respiratoires (2003), 20(2 Pt 1), 215-23
INTRODUCTION: The technique of induced expectoration generates sputum by the inhalation of hypertonic saline. On account of its non-invasive character, its simplicity, its relative harmlessness, its cost ... [more ▼]
INTRODUCTION: The technique of induced expectoration generates sputum by the inhalation of hypertonic saline. On account of its non-invasive character, its simplicity, its relative harmlessness, its cost effectiveness and its reproducibility this technique, that appeared in the early 1990's, has rapidly established itself as the technique of choice in the investigation of bronchial inflammation in asthma. STATE OF THE ART: We present the results of our studies that have contributed to the validation of the technique at the methodological level and to the exploitation of the cellular contents as much as the fluid phase of the expectorations in characterising bronchial inflammation in asthmatics. Our results confirm an infiltration of the airways of asthmatics with eosinophils that appears to be proportional to the severity of the illness. We evaluate the effect of inhaled steroids and of theophylline on sputum eosinophilia and bronchial reactivity and discuss the role of eosinophils on bronchial hyperreactivity. Finally we discuss the use of induced expectoration in clinical practice in asthma. PERSPECTIVES: The analysis of induced sputum could well become a valuable tool in the clinical evaluation and monitoring of asthma in the same way as symptoms and abnormalities of lung function. CONCLUSIONS: Induced expectoration has certainly contributed to the understanding of the cellular and molecular mechanisms of asthma as well as the role of bronchial inflammation in the clinical manifestations of the disease. [less ▲]Detailed reference viewed: 164 (17 ULg)
Updating the Jungfraujoch FTIR databases : current status
Duchatelet, Pierre ; Mahieu, Emmanuel ; Zander, Rodolphe et al
Since the middle of the 20th century, the University of Liège has been active at the International Scientific Station of the Jungfraujoch (ISSJ) in the Swiss Alps (46.5°N, 8.0°E, 3580m asl) to study the ... [more ▼]
Since the middle of the 20th century, the University of Liège has been active at the International Scientific Station of the Jungfraujoch (ISSJ) in the Swiss Alps (46.5°N, 8.0°E, 3580m asl) to study the chemical composition of both the solar photosphere and the Earth’s atmosphere. Since 1989, the ISSJ is an accepted site of the northern midlattitude primary Alpine station of the NDSC (Network for the Detection of Stratospheric Change). This acceptance resulted from earlier monitoring activities by Ulg of a large number of atmospheric constituents. Within the NDSC frame, a special attention and many efforts have been devoted to the monitoring of the most important atmospheric constituents involved both in the erosion of stratospheric ozone and in the greenhouse capacity of the troposphere, after it became clear that human activities have a direct impact on these two processes. Using two high resolution Fourier transform infrared (FTIR) spectrometers, over 25000 wide-band solar spectra encompassing nearly 1700 days since the mid 1980s have been recorded and analyzed to study, quasi simultaneously and repeatedly, local, seasonal and secular variations of some 20 gaseous telluric species. So far, most results have been reported, demonstrating the power of infrared spectrometric solar observations to characterize the chemical composition of the atmosphere. These datas, archived in terms of total vertical column abundances (e.g., at the NDSC-Data Host Facility; http://www.ndsc.ws), are expressed in number molecules per cm2 above the site using best-know input parameters (i.e. spectroscopic-, instrumental-, environmental-) in the retrieval procedure. Meanwhile, more sophisticated algorithms, based on the “Rodgers” optimal estimation method, have been developed, allowing to derive partial tropospheric- and stratospheric columns for various species, including HCl, ClONO2, O3, HF, CO, N2O, CH4, HCN, OCS. This contribution reports related results for HCl and ClONO2. [less ▲]Detailed reference viewed: 25 (4 ULg)
Using on-site observations for low back related work load assessment - Methodological issues
Somville, Pierre-René ; Mairiaux, Philippe
in Strasser, H.; Kluth, K.; Rausch, H. (Eds.) et al Quality of work and products in enterprises of the future (2003)Detailed reference viewed: 9 (1 ULg)
Système d'élevage intensif, complet et fermé, l'exemple de la ferme Renkens.
Article for general public (2003)Detailed reference viewed: 34 (6 ULg)
Harm avoidance is related to mismatch negativity (MMN) amplitude in healthy subjects
Hansenne, Michel ; Pinto, Emmanuel ; Scantamburlo, Gabrielle et al
in Personality & Individual Differences (2003), 34(6), 1039-1048
Event-related potential (ERP) studies evidenced that some personality dimensions induced different controlled cognitive attitudes towards the processing of information. However, few data are available on ... [more ▼]
Event-related potential (ERP) studies evidenced that some personality dimensions induced different controlled cognitive attitudes towards the processing of information. However, few data are available on the possible relationships between personality and automatic attention or early sensory processing. In the present study the relationships between the mismatch negativity (MMN) and personality described by the Cloninger model of personality were investigated. Subjects were 32 healthy volunteers. The MMN was recorded with frequent stimuli tones of 1470 Hz, 70 dB and 40 ms duration, and target (20%) tones of 1470 Hz, 70 dB, 80 ms duration. The subjects completed a French version of the 226-item self-questionnaire TCI within the day following psychophysiological recording. The results showed that the HA dimension was negatively correlated with the MMN amplitude. The association was more present among women than men. No significant relationship existed between the other dimensions of personality and either the MMN amplitude or latency. These findings suggest that the MMN is related to the behavioral inhibition system (BIS), a fact which is consistent with clinical studies conducted on schizophrenia and anxiety disorders. In conclusion, this study suggests that personality dimensions induce different automatic attitudes towards the processing of information. (C) 2002 Published by Elsevier Science Ltd. [less ▲]Detailed reference viewed: 105 (7 ULg)
Event-related potentials to emotional and neutral stimuli in alcoholism.
Hansenne, Michel ; ; Pinto, Emmanuel et al
in Neuropsychobiology (2003), 48(2), 77-81
Several studies have demonstrated that the emotional value of stimuli affects P300 amplitude. In the present study, the influence of alcohol-related stimuli in alcoholic patients was investigated ... [more ▼]
Several studies have demonstrated that the emotional value of stimuli affects P300 amplitude. In the present study, the influence of alcohol-related stimuli in alcoholic patients was investigated. Subjects were 10 alcoholic inpatients (3 female) and 10 age- and sex-matched controls. Eight alcohol-related and 8 neutral words served as stimuli in a visual oddball paradigm. Acohol-related words were targets (48 stimuli, 33%) and neutral words were standard stimuli (96 stimuli, 66%). Results showed that P300 amplitude for targets did not differ significantly between the two groups. However, P300 latency for targets as well as reaction time were significantly shorter in male alcoholic patients. In contrast, P300 latency was increased in female alcoholic patients but reaction time did not differ. These results suggest that male alcoholics process information linked to alcohol cues more rapidly than neutral cues, probably because a specific semantic network is activated in these patients. The decreased reaction time confirms the impulsive behavior frequently found in male alcoholism, as it has been described in type II alcoholism. Besides, the results imply that information processing was delayed in female alcoholic patients. Therefore this study demonstrates a gender-dependent impact of alcohol-related stimuli on information processing. [less ▲]Detailed reference viewed: 52 (6 ULg)
Production de sons chez les Carapidae : approche multidisciplinaire
Parmentier, Eric ; Gennotte, Vincent ;
Conference (2003)Detailed reference viewed: 5 (0 ULg)
Book review: Marine mammals biology and Conservation. Eds. PGH Evans and Raga J.A. Kluwer Academic/ Plenum Publishers
in Journal of Marine Systems (2003), 43
Book reviewDetailed reference viewed: 36 (4 ULg)
Valorisation du froment d'hiver dans l'alimentation du poulet de chair.
; Thewis, André ; Beckers, Yves
Article for general public (2003)Detailed reference viewed: 8 (2 ULg)
Projet FIRST Europe Ojectif 1 (OLIPOL-Synthèse de nouveaux (co)-polymères d'origine végétale par voie catalytique) Rapport III
Le principal objectif visé par le présent travail est de mettre au point des catayseurs efficaces, capables de polymériser par voir radicalaire contrôlée des oléfines internes (peu réactionnelles) et ... [more ▼]
Le principal objectif visé par le présent travail est de mettre au point des catayseurs efficaces, capables de polymériser par voir radicalaire contrôlée des oléfines internes (peu réactionnelles) et, plus particulièrement, l'huile de lin.Nous tenterons aussi d'aborder la copolymérisation de l'huile de lin avec des monomères de grande consommation (styrène et (méth)acrylates) afin de mettre au point, au départ d'un produit naturel et renouvelable, des matériaux nouveaux. L'huile de lin est constituée d'un mélange complexe de triglycérides dont les chaînes pendantes sont porteuses de 2 ou 3 liaisons C=C doubles. Face à la diversité et à la complexité structurale de ces molécules, il nous parait évident d'aborder le problème de manière plus systématique en nous basant sur l'étude de la polymérisation d'oléfines internes et/ou fonctionnalisées qui serviront de "modèles" pour celles rencontrées dans l'huile de lin. Nous sommes en effet convaincus que la réussite de ce projet passe avant tout par une bonne compréhension des facteurs qui gouvernent la réactivité des oléfines internes et fonctionnalisées. Ce projet est réalisé dans le Laboratoire de Chimie Macromoléculaire et de Catalyse Organique (CERM) de l'Université de Liège en partenariat avec l'Institut des Sciences de Matériaux (ICMAB, Barcelone) et la Société Vandeputte (Belgique [less ▲]Detailed reference viewed: 4 (0 ULg)
A recombinant 31.5 kDa keratinase and a crude exo-antigen from Microsporum canis fail to protect against a homologous experimental infection in guinea pigs.
; ; et al
in Veterinary Dermatology (2003), 14(6), 305-312
A Microsporum canis recombinant 31.5 kDa keratinase and a M. canis crude exo-antigen were tested as vaccines in an experimental infection model in guinea pigs. Animals were vaccinated subcutaneously three ... [more ▼]
A Microsporum canis recombinant 31.5 kDa keratinase and a M. canis crude exo-antigen were tested as vaccines in an experimental infection model in guinea pigs. Animals were vaccinated subcutaneously three times at two-week intervals with either the keratinase, the exo-antigen or the adjuvant alone. Cutaneous challenge was performed blindly. Both humoral and cellular-specific immune responses to M. canis antigens were evaluated every 14 days, while a blind evaluation of clinical lesion development and fungal persistency in skin were monitored weekly. Vaccination induced very high and significant (P < 0.01) antibody responses towards both antigens. High cell-mediated immune responses to both immunogens were also induced by vaccination. After challenge, however, scores reflecting the severity of dermatophytic lesions did not differ significantly between vaccinated and control groups at any time after challenge. These results suggest that, in the guinea pig, the induction of specific immune responses against the M. canis-secreted antigens used in this study are not protective against challenge exposure. [less ▲]Detailed reference viewed: 31 (5 ULg)
Histological study of immature interspecific embryo abortion between Phaseolus vulgaris L. and P. polyanthus Greenm.
Toussaint, André ; ; Mergeai, Guy et al
in Annual Report of the Bean Improvment Cooperative (2003), 46Detailed reference viewed: 14 (7 ULg)
Sagriwatel : une vue d'ensemble sur les parcelles.
Tychon, Bernard ;
Article for general public (2003)Detailed reference viewed: 8 (2 ULg)
Belgian and Chinese Crop Growth Monitoring Systems: comparison, adaptation and improvement – An introduction
Tychon, Bernard ; Ozer, Pierre ; et al
in Tychon, Bernard (Ed.) Belgian and Chinese Crop Growth Monitoring Systems: comparison, adaptation and improvement (2003)Detailed reference viewed: 70 (13 ULg)
Use-wear and Hafting Traces in Perspective: the contribution of ethnographic evidence
Conference (2003)Detailed reference viewed: 9 (1 ULg)