References of "Scientific journals"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailPosidonia Oceanica Meadow: A Low Nutrient High Chlorophyll (LNHC) System?
Gobert, Sylvie ULg; Laumont, N.; Bouquegneau, Jean-Marie ULg

in BMC Ecology (2002), 2

BACKGROUND: In spite of very low nutrient concentrations in its vicinity - both column and pore waters-, the Posidonia oceanica of the Revellata Bay displays high biomass and productivity. We measured the ... [more ▼]

BACKGROUND: In spite of very low nutrient concentrations in its vicinity - both column and pore waters-, the Posidonia oceanica of the Revellata Bay displays high biomass and productivity. We measured the nutrient fluxes from the sediment into the water enclosed among the leaf shoots ("canopy water") to determine if it is possible source of nutrients for P. oceanica leaves. RESULTS: During the summer, the canopy water appears to act as a nutrient reservoir for the plant. During that period, the canopy water layer displays both a temperature 0.5 degrees C cooler than the upper water column, and a much higher nutrient content, as shown in this work using a very simple original technique permitting to sample water with a minimal disturbance of the water column's vertical structure.Despite low nutrient concentrations in pore water, mean net fluxes were measured from the sediment to the canopy water. These fluxes are sufficient to provide 20% of the mean daily nitrogen and phosphorus requirement of the P. oceanica shoots. CONCLUSION: An internal cycling of nutrients from P. oceanica senescent leaves was previously noted as an efficient strategy to help face low nutrient availability. The present study points out a second strategy which consists in holding back, in the canopy, the nutrients released at the water-sediment interface. This process occurs when long leaves, during poor nutrient periods in the water column, providing, to P. oceanica, the possibility to develop, high biomass, high chlorophyll quantities in low nutrient environment (a Low Nutrients High Chlorophyll system). [less ▲]

Detailed reference viewed: 63 (23 ULg)
Full Text
Peer Reviewed
See detailThe novel diazoxide analog 3-isopropylamino-7-methoxy-4H-1,2,4-benzothiadiazine 1,1-dioxide is a selective Kir6.2/SUR1 channel opener
Dabrowski, M.; Ashcroft, F. M.; Ashfield, R. et al

in Diabetes (2002), 51

Detailed reference viewed: 2 (0 ULg)
Full Text
Peer Reviewed
See detailA randomized comparison of the value of additional stenting after optimal balloon angioplasty for long coronary lesions: final results of the additional value of NIR stents for treatment of long coronary lesions (ADVANCE) study.
Serruys, Patrick W.; Foley, David P.; Suttorp, Martin Jan et al

in Journal of the American College of Cardiology (2002), 39(3), 393-9

OBJECTIVES: We sought to investigate the clinical benefit of additional stent implantation after achieving an optimal result of balloon angioplasty (BA) in long coronary lesions (>20 mm). BACKGROUND: Long ... [more ▼]

OBJECTIVES: We sought to investigate the clinical benefit of additional stent implantation after achieving an optimal result of balloon angioplasty (BA) in long coronary lesions (>20 mm). BACKGROUND: Long coronary lesions are associated with increased early complications and late restenosis after BA. Stenting improves the early outcome, but stent restenosis is also related to both lesion length and stent length. METHODS: A total of 437 patients with a single native lesion 20 to 50 mm in length were included and underwent BA, using long balloons matched to lesion length and vessel diameter (balloon/artery ratio 1.1) to achieve a diameter stenosis (DS) <30% by on-line quantitative coronary angiography (QCA). "Bail-out stenting" was performed for flow-limiting dissections or >50% DS. Patients in whom an optimal BA result was achieved were randomized to additional stenting (using NIR stents) or no stenting. The primary end point was freedom from major adverse cardiac events (MACE) at nine months, and core laboratory QCA was performed on serial angiograms. RESULTS: Bailout stenting was necessary in 149 patients (34%) and was associated with a significantly increased risk of peri-procedural infarction (p < 0.02). Among the 288 randomized patients, the mean lesion length was 27+/-9 mm, and the vessel diameter was 2.78+/-0.52 mm. The procedural success rate was 90% for the 143 patients assigned to BA alone (control group), as compared with 93% in the 145 patients assigned to additional stenting (stent group), which resulted in a superior early minimal lumen diameter (0.54 mm, p < 0.001) and led to reduced angiographic restenosis (27% vs. 42%, p = 0.022). Freedom from MACE at nine months was 77% in both groups. CONCLUSIONS: A strategy of provisional stenting for long coronary lesions led to bailout stenting in one-third of patients, with a threefold increase in peri-procedural infarction. Additional stenting yielded a lower angiographic restenosis rate, but no reduction in MACE at nine months. [less ▲]

Detailed reference viewed: 12 (1 ULg)
Full Text
Peer Reviewed
See detailRadiation-associated synovial-sarcoma: clinicopathological and molecular analysis of two cases.
Egger, J-F; Coindre, J-M; Benhattar, J et al

in Modern Pathology : An Official Journal of the United States & Canadian Academy of Pathology, Inc (2002), 15(9), 998-1004

Development of a soft-tissue sarcoma is an infrequent but well-known long-term complication of radiotherapy. Malignant fibrous histiocytomas, extraskeletal osteosarcomas, fibrosarcomas, malignant ... [more ▼]

Development of a soft-tissue sarcoma is an infrequent but well-known long-term complication of radiotherapy. Malignant fibrous histiocytomas, extraskeletal osteosarcomas, fibrosarcomas, malignant peripheral nerve sheath tumors, and angiosarcomas are most frequently encountered. Radiationassociated synovial sarcomas are exceptional. We report the clinicopathologic, immunohistochemical, and molecular features of two radiationassociated synovial sarcomas. One tumor developed in a 42-year-old female 17 years after external irradiation was given for breast carcinoma; the other occurred in a 34-year-old female who was irradiated at the age of 7 years for a nonneoplastic condition of the left hand. Both lesions showed morphologic features of monophasic spindle cell synovial sarcoma, were immunoreactive for cytokeratins, epithelial membrane antigen, CD99, CD117 (c-kit), and bcl-2 and bore the t(X;18) (SYT-SSX1) translocation. We conclude that synovial sarcoma has to be added to the list of radiation-associated soft-tissue sarcomas. Mod Pathol 2002;15(9):998–1004 [less ▲]

Detailed reference viewed: 16 (1 ULg)
Full Text
See detailL'exclusion de la réassurance des règles européennes de conflits de juridictions en matière de contrats d'assurance
Boularbah, Hakim ULg

in Bulletin des Assurances = Tijdschrift voor Verzekeringen (2002)

Detailed reference viewed: 34 (0 ULg)
Full Text
Peer Reviewed
See detailSoil Seed Bank And Seed Dormancy In Wild Populations Of Lima Bean (Fabaceae): Considerations For In Situ And Ex Situ Conservation
Degreef, J.; Rocha, O.; Vanderborght, T. et al

in American Journal of Botany (2002), 89(10), 1644-1650

Detailed reference viewed: 27 (2 ULg)
Full Text
Peer Reviewed
See detailLa rente et la galette : à propos du remboursement anticipé d’un crédit
Vanbrabant, Bernard ULg

in Revue du Notariat Belge (2002)

Detailed reference viewed: 8 (1 ULg)
Full Text
Peer Reviewed
See detailElectronic structure of thallium filled skutterudites studied by x-ray absorption and Mossbauer spectroscopy
Long, G. J.; Mahieu, B.; Sales, B. C. et al

in Journal of Applied Physics (2002), 92(12), 7236-7241

Thallium L-III-edge x-ray absorption and iron-57 and tin-119 Mossbauer spectral measurements have been carried out to probe the electronic structure of the three sites in the filled skutterudite TlxCo4 ... [more ▼]

Thallium L-III-edge x-ray absorption and iron-57 and tin-119 Mossbauer spectral measurements have been carried out to probe the electronic structure of the three sites in the filled skutterudite TlxCo4-yFeySb12 and TlxCo4Sb12-zSnz compounds with a range of x, y, and z values. The thallium L-III-edge x-ray absorption spectra are independent of x, y, and z and are well reproduced by full multiple scattering calculations with a cluster with a radius of 8.5 Angstrom centered on thallium. The iron-57 Mossbauer spectra consist of two doublets and the major component is assigned to iron on the cobalt sublattice in view of its hyperfine parameters. The origin of the minor component is uncertain and is tentatively assigned to either iron with thallium vacancies as next nearest neighbors or to iron in the voids. The tin-119 Mossbauer spectral hyperfine parameters clearly indicate that tin substitutes for antimony in the skutterudite structure. Further, the tin electronic configuration is very similar to that of antimony and is insensitive to the thallium content. (C) 2002 American Institute of Physics. [less ▲]

Detailed reference viewed: 15 (0 ULg)
Full Text
Peer Reviewed
See detailClassical and Bayesian inference in neuroimaging : Theory
Friston, Karl J; Penny, W.; Phillips, Christophe ULg et al

in Neuroimage (2002), 16(2), 465-483

This paper reviews hierarchical observation models, used in functional neuroimaging, in a Bayesian light. It emphasizes the common ground shared by classical and Bayesian methods to show that conventional ... [more ▼]

This paper reviews hierarchical observation models, used in functional neuroimaging, in a Bayesian light. It emphasizes the common ground shared by classical and Bayesian methods to show that conventional analyses of neuroimaging data can be usefully extended within an empirical Bayesian framework. In particular we formulate the procedures used in conventional data analysis in terms of hierarchical linear models and establish a connection between classical inference and parametric empirical Bayes (PEB) through covariance component estimation. This estimation is based on an expectation maximization or EM algorithm. The key point is that hierarchical models not only provide for appropriate inference at the highest level but that one can revisit lower levels suitably equipped to make Bayesian inferences. Bayesian inferences eschew many of the difficulties encountered with classical inference and characterize brain responses in a way that is more directly predicated on what one is interested in. The motivation for Bayesian approaches is reviewed and the theoretical background is presented in a way that relates to conventional methods, in particular restricted maximum likelihood (ReML). This paper is a technical and theoretical prelude to subsequent papers that deal with applications of the theory to a range of important issues in neuroimaging. These issues include; (i) Estimating nonsphericity or variance components in fMRI time-series that can arise from serial correlations within subject, or are induced by multisubject (i.e., hierarchical) studies. (ii) Spatiotemporal Bayesian models for imaging data, in which voxels-specific effects are constrained by responses in other voxels. (iii) Bayesian estimation of nonlinear models of hemodynamic responses and (iv) principled ways of mixing structural and functional priors in EEG source reconstruction. Although diverse, all these estimation problems are accommodated by the PEB framework described in this paper. [less ▲]

Detailed reference viewed: 21 (0 ULg)
Full Text
Peer Reviewed
See detailLa loi du 22 août 2002 relative aux droits du patient
Leleu, Yves-Henri ULg

in Journal des Tribunaux (2002)

Detailed reference viewed: 54 (8 ULg)
Full Text
Peer Reviewed
See detailMembrane Destabilization Induced By Beta-Amyloid Peptide 29-42: Importance Of The Amino-Terminus
Mingeot-Leclercq, Mp.; Lins, Laurence ULg; Bensliman, M. et al

in Chemistry and Physics of Lipids (2002), 120(1-2), 57-74

Increasing evidence implicates interactions between Abeta-peptides and membrane lipids in Alzheimer's disease. To gain insight into the potential role of the free amino group of the N-terminus of Abeta29 ... [more ▼]

Increasing evidence implicates interactions between Abeta-peptides and membrane lipids in Alzheimer's disease. To gain insight into the potential role of the free amino group of the N-terminus of Abeta29-42 fragment in these processes, we have investigated the ability of Abeta29-42 unprotected and Abeta29-42 N-protected to interact with negatively-charged liposomes and have calculated the interaction with membrane lipids by conformational analysis. Using vesicles mimicking the composition of neuronal membranes, we show that both peptides have a similar capacity to induce membrane fusion and permeabilization. The fusogenic effect is related to the appearance of non-bilayer structures where isotropic motions occur as shown by 31P and 2H NMR studies. The molecular modeling calculations confirm the experimental observations and suggest that lipid destabilization could be due to the ability of both peptides to adopt metastable positions in the presence of lipids. In conclusion, the presence of a free or protected (acetylated) amino group in the N-terminus of Abeta29-42 is therefore probably not crucial for destabilizing properties of the C-terminal fragment of Abeta peptides. [less ▲]

Detailed reference viewed: 17 (1 ULg)
Full Text
Peer Reviewed
See detailEnzymatically prepared n-alkyl esters of glucuronic acid: The effect of hydrophobic chain length on surface properties
Blecker, Christophe ULg; Piccicuto, S.; Lognay, Georges ULg et al

in Journal of Colloid & Interface Science (2002), 247(2), 424-428

The effect of hydrophobic chain length on surface properties of enzymatically prepared n-alkyl esters of glucuronic acid are examined. Dynamic parameters from Hua and Rosen's mathematical model and ... [more ▼]

The effect of hydrophobic chain length on surface properties of enzymatically prepared n-alkyl esters of glucuronic acid are examined. Dynamic parameters from Hua and Rosen's mathematical model and equilibrium surface tension are presented for esters with octyl, decyl, dodecyl, and tetradecyl alkyl segments. Increasing the alkyl chain length has a significant influence on the surface activity. Decyl and dodecyl glucuronate exhibit an interesting adsorption speed associated with foaming capacity. Octyl glucuronate exhibits a micellar organization as its bulk concentration is over 10.68 mM. (C) 2002 Elsevier Science (USA). [less ▲]

Detailed reference viewed: 16 (6 ULg)
Full Text
Peer Reviewed
See detailDifferential sensitivity of two insect GABA-gated chloride channels to dieldrin, fipronil and picrotoxinin
Le Corronch, Hervé; Alix, Philippe ULg; Hue, B

in Journal of Insect Physiology (2002), 48

In the central nervous system of both vertebrates and invertebrates inhibitory neurotransmission is mainly achieved through activation of gamma-aminobutyric acid (GABA) receptors. Extensive studies have ... [more ▼]

In the central nervous system of both vertebrates and invertebrates inhibitory neurotransmission is mainly achieved through activation of gamma-aminobutyric acid (GABA) receptors. Extensive studies have established the structural and pharmacological properties of vertebrate GABA receptors. Although the vast majority of insect GABA-sensitive responses share some properties with vertebrate GABAA receptors, peculiar pharmacological properties of these receptors led us to think that several GABA-gated chloride channels are present in insects. We describe here the pharmacological properties of two GABA receptor subtypes coupled to a chloride channel on dorsal unpaired median (DUM) neurones of the adult male cockroach. Long applications of GABA induce a large biphasic hyperpolarization, consisting of an initial transient hyperpolarization followed by a slow phase of hyperpolarization that is not quickly desensitized. With GABA, the transient hyperpolarization is sensitive to picrotoxinin, fipronil and dieldrin whereas the slow response is insensitive to these insecticides.When GABA is replaced by muscimol and cis-4-aminocrotonic acid (CACA) a biphasic hyperpolarization consisting of an initial transient hyperpolarization followed by a sustained phase is evoked which is blocked by picrotoxinin and fipronil. Exposure to dieldrin decreases only the early phase of the muscimol and CACA-induced biphasic response, suggesting that two GABA-gated chloride channel receptor subtypes are present in DUM neurones. This study describes, for the first time, a dieldrin resistant component different to the dieldrin- and picrotoxinin-resistant receptor found in several insect species. [less ▲]

Detailed reference viewed: 25 (2 ULg)
Full Text
Peer Reviewed
See detailComment j'explore.... Une sclérodermie cutanée d'une manière non invasive.
Fraiture, A. L.; Henry, Frédérique ULg; Goffin, Véronique ULg et al

in Revue Médicale de Liège (2002), 57(3), 179-82

There exists several clinical types of scleroderma. Most of them show cutaneous manifestations. Skin involvement may be isolated (morphea) or be part of a multi-organ systemic disease. Objective non ... [more ▼]

There exists several clinical types of scleroderma. Most of them show cutaneous manifestations. Skin involvement may be isolated (morphea) or be part of a multi-organ systemic disease. Objective non-invasive functional methods are useful in order to better assess the severity and evolution of the disease and the effects of treatments. Measurements of the thickness and mechanical properties of the skin as well as the visualization of the cutaneous blood flow prove to be informative. [less ▲]

Detailed reference viewed: 271 (6 ULg)
Full Text
Peer Reviewed
See detailApproche diagnostique d'une élévation des transaminases
Delwaide, Jean ULg; Delfosse, V.; Detry, Olivier ULg

in Patient Care (2002), 18(2), 10-16

Detailed reference viewed: 33 (2 ULg)
Full Text
Peer Reviewed
See detailComposition de la carcasse, qualité de viande et exploitation du Piétrain stress négatif
Youssao, A. K. L.; Verleyen, Vincent ULg; Michaux, Charles ULg et al

in Annales de Médecine Vétérinaire (2002), 146(6), 329-338

Detailed reference viewed: 13 (2 ULg)
Full Text
Peer Reviewed
See detailSingle step synthesis of metal catalysts supported on porous carbon with controlled texture
Job, Nathalie ULg; Ferauche, fabrice; Pirard, René ULg et al

in Studies in Surface Science and Catalysis (2002), 143

Detailed reference viewed: 11 (1 ULg)
Full Text
Peer Reviewed
See detailRandomized controlled study of the influence of two low estrogen dose oral contraceptives containing gestodene or desogestrel on carbohydrate metabolism.
Ludicke, Frank; Gaspard, Ulysse ULg; Demeyer, Fabienne ULg et al

in Contraception (2002), 66(6), 411-5

This study compared the impact on carbohydrate metabolism of two combinedoral contraceptives (COCs). This open-label, single-center trial enrolled participants for a total of 15 cycles. Thirty-six women ... [more ▼]

This study compared the impact on carbohydrate metabolism of two combinedoral contraceptives (COCs). This open-label, single-center trial enrolled participants for a total of 15 cycles. Thirty-six women were randomized to receive either 20 microg ethinyl estradiol (EE) and 75 microg gestodene (GSD) or 20 microg ethinyl estradiol and 150 microg desogestrel (DSG) daily for 21 days out of 28. A glucose tolerance test was performed at baseline and cycles 6 and 13. The area under the curve (AUC) for glucose increased in both study groups. The change was statistically significant (p = 0.036) for the 20 EE/75 GSD group at cycle 6 versus baseline. Fasting blood glucose at cycle 13 was significantly (p < 0.01) higher for both treatment groups compared to baseline. No changes were found for fasting insulin and fasting C-peptide levels or for the AUCs of insulin or C-peptide. Both regimens were well tolerated. Gestodene and desogestrel in combination with 20-microg ethinyl estradiol induce similar changes in carbohydrate metabolism which are smaller than those described earlier for COCs containing higher estrogen doses or more androgenic progestins such as levonorgestrel. [less ▲]

Detailed reference viewed: 52 (3 ULg)
Full Text
Peer Reviewed
See detailComment je traite ... la paralysie faciale par anastomose hypoglosso-faciale.
Courtmans, I; Born, J D; CARLIER, Alain ULg et al

in Revue Médicale de Liège (2002), 57(1), 3-6

Thirteen patients underwent a hypoglosso- or a spino-facial nerve anastomosis between 1990 and 1996. Facial palsy was the result of surgery in 12 cases and of radiosurgery in 1 case. The mean interval ... [more ▼]

Thirteen patients underwent a hypoglosso- or a spino-facial nerve anastomosis between 1990 and 1996. Facial palsy was the result of surgery in 12 cases and of radiosurgery in 1 case. The mean interval between facial palsy and anastomosis was 12 months. Facial nerve function is determined on the basis of clinical examination according to the classification of House-Brackmann and our own evaluation. According to House, 10 patients are classified grade III and 3 grade IV. Our evaluation defines in 10 grade III, 7 good results and 3 fair results. As far as the good results are concerned, the mean interval between palsy and anastomosis is short (< 3 months). The permanent eating and swallowing dysfunctions are consecutive to multiple cranial nerve deficits. The post-paralysis hemifacial spasm is facilitated by prolongated electric stimulations. [less ▲]

Detailed reference viewed: 51 (0 ULg)
Full Text
Peer Reviewed
See detailA. Gacek: The Arabic manuscript tradition: A glossary of technical terms and bibliography
Bauden, Frédéric ULg

in Journal of the American Oriental Society (2002), 122(3), 658-659

Detailed reference viewed: 74 (12 ULg)
Full Text
See detailLes racines de l'arc-en-ciel
Jacquemain, Marc ULg

in Politique : Revue de Débats (2002), 26

L'article explore les fondements idéologiques qui ont présidé à la construction de la coalition libérale-socialiste-écologiste qui a dirigé la Belgique de 1999 à 2003. Si les écologistes se sont imposés ... [more ▼]

L'article explore les fondements idéologiques qui ont présidé à la construction de la coalition libérale-socialiste-écologiste qui a dirigé la Belgique de 1999 à 2003. Si les écologistes se sont imposés in extremis à la faveur de la crise de la dioxine en 1999, cela faisait un certain temps qu'un accord entre socialistes et libéraux pour mettre les partis chrétiens dans l'opposition était "dans l'air" : il s'agissait d'en finir avec un certain nombre de "verrous moraux" venus du monde catholique (notamment autour des valeurs familiales), qui apparaissaient de moins en moins en phase avec l'opinion publique. Cette mise à l'arrière-plan du clivage gauche/droite au profit du clivage laïque/clérical a sans doute bousculé plus durablement que prévu le paysage idéologique. [less ▲]

Detailed reference viewed: 32 (2 ULg)
Full Text
Peer Reviewed
See detailObesity and liver disease.
Scheen, André ULg; Luyckx, Françoise ULg

in Best practice & research. Clinical endocrinology & metabolism (2002), 16(4), 703-16

Non-alcoholic steatohepatitis (NASH) is a disease of emerging identity and importance. It is frequently associated with obesity, especially visceral fat, and is intimately related to fatty liver and ... [more ▼]

Non-alcoholic steatohepatitis (NASH) is a disease of emerging identity and importance. It is frequently associated with obesity, especially visceral fat, and is intimately related to fatty liver and markers of the insulin resistance syndrome. Both the prevalence and the severity of liver steatosis are related to body mass index, waist circumference, hyperinsulinaemia, hypertriglyceridaemia and impaired glucose tolerance or type 2 diabetes. The identification of obese patients who may progress from steatosis to NASH and from NASH to fibrosis/cirrhosis is an important clinical challenge. Substantial weight loss is accompanied by a marked attenuation of insulin resistance and related metabolic syndrome and, concomitantly, by a remarkable regression of liver steatosis in most patients, although increased inflammation may be detected in some subjects. Thus, NASH may be considered as another disease of affluence, as is the insulin resistance syndrome, and perhaps being part of it, especially in obese patients. [less ▲]

Detailed reference viewed: 68 (1 ULg)
Full Text
Peer Reviewed
See detailForests and landscapes – Linking ecology, sustainability and aesthetics (S.R.J. Sheppard, H.W. Harshaw).
Bogaert, Jan ULg

in Landscape & Urban Planning (2002), 59(2), 125-127

Detailed reference viewed: 14 (0 ULg)
Full Text
Peer Reviewed
See detailA transformed fish cell line expressing a green fluorescent protein-luciferase fusion gene responding to cellular stress
Molina, A.; Carpeaux, Rudy ULg; Martial, Joseph ULg et al

in Toxicology in Vitro (2002), 16(2), 201-7

We obtained a stable transformed fish (EPC) cell line containing a reporter gene under the control of the tilapia HSP70 promoter. Expression of the reporter gene, coding for a green fluorescent protein ... [more ▼]

We obtained a stable transformed fish (EPC) cell line containing a reporter gene under the control of the tilapia HSP70 promoter. Expression of the reporter gene, coding for a green fluorescent protein (GFP)-luciferase fusion protein, was assessed by measuring the luciferase enzymatic activity by luminometry and the GFP expression by fluorescence microscopy and flow cytometry. The clone was characterized for its capacity to respond to heat shock treatment. The results show high induction after 1 h at 37 degrees C of treatment, up to 500-fold. In addition, its convenience to detect a large range of cellular stressors was evaluated. We observed high induction when Cd2+, Zn2+, Hg2+ or Cu2+ was added, but not Pb2+. In addition, activation of the reporter gene was observed in the presence of other compounds such as acetyl chloride, tetrachlorophenol, chloroacetamide and sodium arsenite. In conclusion, this cell line can be used as a rapid, cheap and easy biological test to determine cellular stress induced by environmental pollutants, alone or in conjunction with other, more specific assays. [less ▲]

Detailed reference viewed: 53 (8 ULg)
Full Text
Peer Reviewed
See detailEvaluation par ultrasonographie en temps réel de la teneur en gras intramusculaire du porc Piétrain
Youssao, A. K. I.; Verleyen, Vincent ULg; Michaux, Charles ULg et al

in Annales de Médecine Vétérinaire (2002), 146(4), 249-255

Real-time ultrasound data collection, consisting specifically of longissimus thoracis muscle echogenicity, was carried out on 80 Pietrain pigs (42 gilts and 34 barrows) using the Pie Medical scanner 200 ... [more ▼]

Real-time ultrasound data collection, consisting specifically of longissimus thoracis muscle echogenicity, was carried out on 80 Pietrain pigs (42 gilts and 34 barrows) using the Pie Medical scanner 200 equipped with an ASP-18 probe and 3.5 MHz to predict intramuscular fat. Two ribs thickness (12th and 13th ribs) was excised from the longissimus thoracis muscle for subsequent ether extract value (EE) determination. The percentage of white pixels in the ultrasound image were related to EE percentage. The EE percentages were 1.44, 1.37 and 1.15 % respectively for the homozygous stress-negative Pietrain (CC), heterozygous stress-negative Pietrain (CT) and homozygous stress-positive Pietrain (TT) individuals. The percentage of white pixels in the longissimus thoracis images were 9.98, 8.75 and 7.79 % respectively for CC, CT and TT genotypes. The barrows had an higher intramuscular fat and white pixel percentage than the gilts. The determination coefficient (R 2) of the EE prediction model originating from the white pixels percentage was 0.35 with a root mean squared error of 0.26 %. These performance could be potentially improved using the calibration phantom of the ASP-18 probe, before taking images. [less ▲]

Detailed reference viewed: 25 (10 ULg)
Full Text
Peer Reviewed
See detailNew record of Encheliophis dubius (Carapidae) off Madagascar ?
Parmentier, Eric ULg; Bailly, Nicolas

in Cybium (2002), 26

When checking the identification of the Carapidae in the MNHN collection (Muséum National d’Histoire Naturelle, Paris) a specimen of Eurypleuron owasianum (Matsubara, 1953) (MNHN 1992-0914) caught off ... [more ▼]

When checking the identification of the Carapidae in the MNHN collection (Muséum National d’Histoire Naturelle, Paris) a specimen of Eurypleuron owasianum (Matsubara, 1953) (MNHN 1992-0914) caught off Madagascar (20°S, 42°30’E) was found to be incorrectly identified. The specimen is vey close to Carapus dubius (Putnam, 1874), which is known from the Eastern Pacific (Markle and Olney, 1990). [less ▲]

Detailed reference viewed: 26 (4 ULg)
Full Text
Peer Reviewed
See detailL'entrée en vigueur du permis d'environnement et du permis unique
Pâques, Michel ULg

in Actualité législative en droit immobilier (2002)

Detailed reference viewed: 23 (2 ULg)
Full Text
Peer Reviewed
See detailD'un réseau judiciaire européen à une juridiction européenne : Eurojust et l'émergence d'un système de justice pénale
Flore, Daniel ULg

in L'espace pénal européen : enjeux et perspectives (2002)

Detailed reference viewed: 69 (1 ULg)
Full Text
Peer Reviewed
See detailJuvenile acanthosis nigricans and insulin resistance.
Hermanns-Lê, Trinh ULg; Hermanns, Jean-François ULg; Pierard, Gérald ULg

in Pediatric Dermatology (2002), 19(1), 12-4

Acanthosis nigricans in obese adolescents is frequently associated with hyperinsulinemia and insulin resistance. We report three cases of this condition. In the early stage the skin lesions appeared to be ... [more ▼]

Acanthosis nigricans in obese adolescents is frequently associated with hyperinsulinemia and insulin resistance. We report three cases of this condition. In the early stage the skin lesions appeared to be erythematous and pruritic, mimicking an inflammatory dermatitis. Dietary control and oral metformin hydrochloride markedly improved the lesions. Topical calcipotriol may also help to control the skin condition. [less ▲]

Detailed reference viewed: 53 (1 ULg)
Full Text
Peer Reviewed
See detailQuelques résultats prometteurs pour une sylviculture de l'Aulne glutineux en Wallonie.
Claessens, Hugues ULg; Thibaut, A.; Rondeux, Jacques ULg

in Revue Forestière Française (2002), 54(3), 259-270

In Belgium, black alder is well known for its ecological functions, but is generally considered as a secondary species without any true economic value. The present study, based on data pertaining to 166 ... [more ▼]

In Belgium, black alder is well known for its ecological functions, but is generally considered as a secondary species without any true economic value. The present study, based on data pertaining to 166 plots, aims at evaluating the potential of black alder silviculture in the Walloon forest (Southern Belgium). We successively analysed dominant height growth, dominant girth growth and solid stem volume over time. It appears that by controlling competition within stands it should be possible to produce quality, 150-cm girth logs within 50 – 100 years, depending on the level of productivity. The German tables of Mitscherlich (in Schöber, 1975) seem to be most suitable for describing the growth parameters of the Belgian alder stands over time and black alder stand production can be estimated at 3 to 9 m3/ha/year according to site classes. We can conclude that black alder silviculture can be a viable economic activity. [less ▲]

Detailed reference viewed: 67 (13 ULg)
Full Text
Peer Reviewed
See detailIntravascular malignant lymphomatosis: report of 2 neurological cases
Vandenheede, Michel; Dioh, Alioune ULg; Maertens De Noordhout, Alain ULg et al

in Acta Neurologica Belgica (2002), 102(2), 76-81

We report two cases of intravascular malignant lymphomatosis (IML) with a clinical expression limited to the central nervous system. The first patient presented with signs of cerebral, cerebellar and ... [more ▼]

We report two cases of intravascular malignant lymphomatosis (IML) with a clinical expression limited to the central nervous system. The first patient presented with signs of cerebral, cerebellar and spinal cord involvement. The second had an isolated involvement of the spinal cord. In both cases the diagnosis was made at post-mortem examination; pre-mortem examination of biopsy tissue from peripheral nerve and muscle in the first case, spleen and liver in the second were unhelpful for the diagnosis of lymphoma. We review the published literature on IML, its ante-mortem diagnosis and treatment. [less ▲]

Detailed reference viewed: 35 (6 ULg)
Full Text
Peer Reviewed
See detailLes débuts du paléolithique supérieur dans le nord-ouest de l’Europe : le Lincombien-Ranisien-Jerzmanowicien (état de la question)
Flas, Damien ULg

in Anthropologica et Praehistorica : Bulletin de la Société Royale Belge d'Anthropologie et de Préhistoire (2002), 113

Detailed reference viewed: 36 (0 ULg)
Full Text
Peer Reviewed
See detailMechanisms controlling the oxygen consumption in experimentally induced hypochloremic alkalosis in calves
Cambier, Carole ULg; Clerbaux, Thierry; Amory, Hélène ULg et al

in Veterinary Research (2002), 33

The study was carried out on healthy Friesian calves (n = 10) aged between 10 and 30 days. Hypochloremia and alkalosis were induced by intravenous administration of furosemide and isotonic sodium ... [more ▼]

The study was carried out on healthy Friesian calves (n = 10) aged between 10 and 30 days. Hypochloremia and alkalosis were induced by intravenous administration of furosemide and isotonic sodium bicarbonate. The venous and arterial blood samples were collected repeatedly. 2,3-diphosphoglycerate (2,3-DPG), hemoglobin and plasmatic chloride concentrations were determined. The red blood cell chloride concentration was also calculated. pH, PCO2 and PO2 were measured in arterial and mixed venous blood. The oxygen equilibrium curve (OEC) was measured in standard conditions. The correspondence of the OEC to the arterial and mixed venous compartments was calculated, taking blood temperature, pH and PCO2 values into account. The oxygen exchange fraction (OEF%), corresponding to the degree of blood desaturation between the arterial and mixed venous compartments and the amount of oxygen released at the tissue level by 100 mL of blood (OEF Vol%) were calculated from the arterial and mixed venous OEC, combined with PO2 and hemoglobin concentration. Oxygen delivery (DO2) was calculated using the arterial oxygen content, the cardiac output measured by thermodilution, and the body weight of the animal. The oxygen consumption (VO2) was derived from the cardiac output, OEF Vol% and body weight values. Despite the plasma hypochloremia, the erythrocyte chloride concentration was not influenced by furosemide and sodium bicarbonate infusion. Due to the alkalosis-induced increase in the 2,3-DPG, the standard OEC was shifted to the right, allowing oxygen to dissociate from hemoglobin more rapidly. These changes opposed the increased affinity of hemoglobin for oxygen induced by alkalosis. Moreover, respiratory acidosis, hemoconcentration, and the slight decrease in the partial oxygen pressure in mixed venous blood (Pvo(2)) tended to improve the OEF Vol% and maintain the oxygen consumption in a physiological range while the cardiac output, and the oxygen delivery were significantly decreased. It may be concluded that, despite reduced oxygen delivery, oxygen consumption is maintained during experimentally induced hypochloremic alkalosis in healthy 10-30 day old calves [less ▲]

Detailed reference viewed: 84 (16 ULg)
Full Text
Peer Reviewed
See detailGeneration of a finite element MESH from stereolithography (STL) files
Béchet, Eric ULg; Cuilliere, Jean-Christophe; Trochu, François

in Computer-Aided Design (2002), 34(1), 1-17

The aim of the method proposed here is to show the possibility of generating adaptive surface meshes suitable for the finite element method, directly from an approximated boundary representation of an ... [more ▼]

The aim of the method proposed here is to show the possibility of generating adaptive surface meshes suitable for the finite element method, directly from an approximated boundary representation of an object created with CAD software. First, we describe the boundary representation, which is composed of a simple triangulation of the surface of the object. Then we will show how to obtain a conforming size-adapted mesh. The size adaptation is made considering geometrical approximation and with respect to an isotropic size map provided by an error estimator. The mesh can be used "as is" for a finite element computation (with shell elements), or can be used as a surface mesh to initiate a volume meshing algorithm (Delaunay or advancing front). The principle used to generate the mesh is based on the Delaunay method, which is associated with refinement algorithms, and smoothing. Finally, we will show that not using the parametric representation of the geometrical model allows us to override some of the limitations of conventional meshing software that is based on an exact representation of the geometry. (C) 2001 Published by Elsevier Science Ltd. [less ▲]

Detailed reference viewed: 164 (14 ULg)
Full Text
Peer Reviewed
See detailEclatement des mobilités d'achats et recomposition des territoires : le cas de l'Ardenne du Nord-Est.
Schmitz, Serge ULg; Halleux, Jean-Marie ULg

in Mosella (2002), 26(3-4), 425-432

Lived world are structured by regular journeys. Many journeys are constrained, other, such as shopping mobilities, present a higher level of freedom. New mobilities and new commercial localisation ... [more ▼]

Lived world are structured by regular journeys. Many journeys are constrained, other, such as shopping mobilities, present a higher level of freedom. New mobilities and new commercial localisation strategies lead to new travels network. The aim of the paper is to study shopping behaviours in North-Eastern Ardennes in order to underline the increasing disparities between shopping mobilities, lived world, homeland and institutional territories. When space behaviours make and remake territorial frames. [less ▲]

Detailed reference viewed: 48 (15 ULg)
Full Text
Peer Reviewed
See detailFirst report on the presence in France of a B-chromosome polymorphism in Apodemus flavicollis
Ramalhinho, M. G.; Libois, Roland ULg

in Mammalia (2002), 66(2), 300-303

Observation of B chromosomes in Apodemus flavicollis in France (Massif central)

Detailed reference viewed: 14 (4 ULg)
Full Text
See detailLa science au service de l'apostolat. L'enseignement des Jésuites anglais à Liège aux XVIIe et XVIIIe siècles
Opsomer, Carmélia ULg

in Archives Internationales d'Histoire des Sciences (2002), 52(148), 212-226

Detailed reference viewed: 75 (24 ULg)
Full Text
Peer Reviewed
See detailSeasonality Of Ecosystem Respiration And Gross Primary Production As Derived From Fluxnet Measurements
Falge, E.; Baldocchi, D.; Tenhunen, J. et al

in Agricultural and Forest Meteorology (2002), 113(1-4),

Detailed reference viewed: 18 (2 ULg)
Full Text
Peer Reviewed
See detailLa réalité morale du sociologue : le cognitivisme de Raymond Boudon
Jacquemain, Marc ULg

in Réseaux : Revue Interdisciplinaire de Philosophie Morale et Politique (2002), 94-95-96

Raymond Boudon defends that the social actor holds overall rational beliefs : we have "good reasons" for most of our beliefs. But he also defends the idea that those "good reasons" can lead to "moral ... [more ▼]

Raymond Boudon defends that the social actor holds overall rational beliefs : we have "good reasons" for most of our beliefs. But he also defends the idea that those "good reasons" can lead to "moral truths". How then can he avoid pure platonism (the idea that "values" exist objectively in a world of their own) ? When confronting to to the task of defending through concrete examples how we can differentiate "good reasons" from bad ones, he says that good reasons are widely shared. But then the idea of objectivity of values dissolves in a loose theory of opinion, that's to say "doxa", which is the very contrary of platonic ideas. So the intent to point to "objective" values seems to lead either to pure dogmatism or to pure relativism. [less ▲]

Detailed reference viewed: 72 (5 ULg)
Full Text
Peer Reviewed
See detailLa châsse de saint Remacle (1263-1268) et Liège
George, Philippe ULg

in Bulletin de la Société Royale Le Vieux-Liège (2002), t. XIV, n° 298-299

Detailed reference viewed: 29 (2 ULg)
Full Text
Peer Reviewed
See detailDu Fantastique réel au réalisme magique
Denis, Benoît ULg

in Textyles : Revue des Lettres Belges de Langue Française (2002), (21),

Detailed reference viewed: 21 (2 ULg)
Full Text
Peer Reviewed
See detailLeukemic target susceptibility to natural killer cytotoxicity: relationship with BCR-ABL expression.
Baron, Frédéric ULg; Turhan, Ali G; Giron-Michel, Julien et al

in Blood (2002), 99(6), 2107-13

Chronic myeloid leukemia is a clonal myeloproliferative expansion of transformed primitive hematopoietic progenitor cells characterized by high-level expression of BCR-ABL chimeric gene, which induces ... [more ▼]

Chronic myeloid leukemia is a clonal myeloproliferative expansion of transformed primitive hematopoietic progenitor cells characterized by high-level expression of BCR-ABL chimeric gene, which induces growth factor independence. However, the influence of BCR-ABL expression on cell-mediated cytotoxicity is poorly understood. In the present study, we asked whether BCR-ABL expression interferes with leukemic target sensitivity to natural killer (NK) cell cytolysis. Our approach was based on the use of 2 BCR-ABL transfectants of the pluripotent hematopoietic cell line UT-7 expressing low (UT-7/E8, UT-7/G6) and high (UT-7/9) levels of BCR-ABL. As effector cells, we used CD56(bright), CD16-, CD2- NK cells differentiated in vitro from CD34 cord blood progenitors. We demonstrated that BCR-ABL transfectants UT-7/9 were lysed by NK cells with a higher efficiency than parental and low UT-7/E8.1 and UT-7/G6 transfectants. This enhanced susceptibility to lysis correlated with an increase in expression of intercellular adhesion molecule 1 (ICAM-1) by target cells. Treatment of UT-7/9 cells by STI571 (a specific inhibitor of the abl kinase) resulted in a decrease in NK susceptibility to lysis and ICAM-1 down-regulation in target cells. Furthermore, the constitutive activation of nuclear factor-kappaB (NF-kappaB) detected in BCR-ABL transfectant UT-7/9, was significantly attenuated when cells were treated by STI571. Interestingly, inhibition of NF-kappaB activation by BAY11-67082 (a specific NF-kappaB inhibitor) resulted in down-regulation of ICAM-1 expression and a subsequent decrease in NK-induced killing of UT-7/9 transfectants. Our results show that oncogenic transformation by BCR-ABL may increase susceptibility of leukemic progenitors to NK cell cytotoxicity by a mechanism involving overexpression of ICAM-1 as a consequence of NF-kappaB activation. [less ▲]

Detailed reference viewed: 15 (0 ULg)
Full Text
Peer Reviewed
See detailLésion du nerf interosseux postérieur liée à une randonnée prolongée en vélo-tout-terrain (VTT)
Zeevaert, Bernard; CRIELAARD, Jean-Michel ULg; WANG, François-Charles ULg

in Neurophysiologie Clinique = Clinical Neurophysiology (2002)

Detailed reference viewed: 28 (1 ULg)
Full Text
Peer Reviewed
See detailOver Kalligramme. Zur Medialität einer Schrift anhand von Paul van Ostaijens De feesten van angst en pijn
Spinoy, Erik ULg

in Spiegel der Letteren (2002), 44(3), 291-293

This is a review of a study by Sonja Neef on the work of Paul van Ostaijen

Detailed reference viewed: 51 (1 ULg)
Full Text
Peer Reviewed
See detailPhytoremediation of polyaromatic hydrocarbons, anilines and phenols
Harvey, P. J.; Campanella, Bruno ULg; Castro, P. et al

in Environmental Science and Pollution Research (2002), 9

Detailed reference viewed: 50 (10 ULg)
Full Text
Peer Reviewed
See detailPolyamines as essential substances in metabolism
Dandrifosse, Anne-catherine; Deloyer, Patricia; Loret, Suzanne et al

in Trends in Comparative Biochemistry and Physiology (2002), 9

Detailed reference viewed: 26 (0 ULg)
Full Text
Peer Reviewed
See detailExistence de karsts en roches cristallines silicatées non carbonatées en Afrique sahélienne et équatoriale, implications hydrogéologiques
Willems, Luc ULg; Pouclet, André; Vicat, Jean-Paul

in Bulletin de la Société Géologique de France (2002), 173(4), 337-345

Various cavities studied in western Niger and South Cameroon show the existence of important karstic phenomena into metagabbros and gneisses. These large-sized eaves resulted from generalized dissolution ... [more ▼]

Various cavities studied in western Niger and South Cameroon show the existence of important karstic phenomena into metagabbros and gneisses. These large-sized eaves resulted from generalized dissolution of silicate formations in spite of their low solubility. Karstification is produced by deep hydrous transfer along lithological discontinuities and fracture net works. The existence of such caves has major implications in geomorphology, under either Sahelian and Equatorial climate, and in hydrogeology and water supply, particularly in the Sahel area. [less ▲]

Detailed reference viewed: 23 (2 ULg)
Full Text
Peer Reviewed
See detailAromatic Side-Chain Interactions In Proteins. II. Near- And Far-Sequence Phe-X Pairs
Thomas, Annick ULg; Meurisse, R.; Brasseur, Robert ULg

in Proteins-Structure Function and Genetics (2002), 48(4), 635-44

We have collected all aromatic pairs (3152) involving an N-phenyl partner in a dataset of 593 proteins of the PDB: 728 of these pairs involve a partner residue less than 6 apart in the sequence. These ... [more ▼]

We have collected all aromatic pairs (3152) involving an N-phenyl partner in a dataset of 593 proteins of the PDB: 728 of these pairs involve a partner residue less than 6 apart in the sequence. These near-sequence Phe-X pairs correspond to specific conformations that stabilize secondary structures, mainly alpha-helices when the residues are 1, 3, and 4 apart, and beta-strands when they are 2 apart in the sequence. These conformations are not spatially random and have been examined in detail. The remaining phenylalanine pairs (2424) are between partners more than 5 apart in the sequence. Of these far-sequence pairs, 34% of occurrences are in sheets. Next in frequencies are pairs that bridge a beta-strand to a helix (24%), followed by pairs that bridge a beta-strand to a random coiled structure (15%). Helix to helix pairs only constitute 12% of these far-sequence pairs. Analysis of the pairing frequency supports the hypothesis that aromatic interactions are late events of protein folding. [less ▲]

Detailed reference viewed: 7 (0 ULg)
Full Text
Peer Reviewed
See detailPaedomorphosis in the Alpine newt (Triturus alpestris): decoupling behavioural and morphological change
Denoël, Mathieu ULg

in Behavioral Ecology and Sociobiology (2002), 52(5), 394-399

Paedomorphosis is a heterochronic pattern leading to morphological change, i.e. retention of larval characters in the adult phenotype. The aim of this study was to find out whether behaviour and ... [more ▼]

Paedomorphosis is a heterochronic pattern leading to morphological change, i.e. retention of larval characters in the adult phenotype. The aim of this study was to find out whether behaviour and morphology are decoupled in heterochronic phenotypes. To this end, I compared qualitative and quantitative aspects of courtship behaviour in syntopic metamorphic and paedomorphic Alpine newts, Triturus alpestris. Morphologically, the two morphs differ considerably (e.g. by the presence of gills only in paedomorphs), but their patterns of sexual behaviours are exhibited at similar frequencies and males use the same alternative reproductive tactics to attract unresponsive females. These results show that morphology and behaviour follow different ontogenetic pathways and are thus decoupled. Decoupling of the two traits offers the possibility of morphological evolution without alteration of sexual patterns. [less ▲]

Detailed reference viewed: 164 (20 ULg)
Full Text
Peer Reviewed
See detailContribution à l'étude de la qualité bactériologique des eaux de surface à vocation touristique en Wallonie (Belgique)
Rosillon, Françis ULg; Culot, Marc ULg; Bosser, C. et al

in Cahiers de l'association scientifique européenne pour l'eau et la santé (2002), 7(1), 3-13

Au cours de la saison estivale 2000 et 2001, 33 zones récréatives en cours d'eau ont fait l'objet d'un suivi de la qualité bactériologique. Au-delà d'une simple surveillance, un profil de zone a été ... [more ▼]

Au cours de la saison estivale 2000 et 2001, 33 zones récréatives en cours d'eau ont fait l'objet d'un suivi de la qualité bactériologique. Au-delà d'une simple surveillance, un profil de zone a été établi. Celui-ci consiste à identifier et à hiérarchiser l'importance des sources de contamination fécale pouvant influencer la zone récréative. Lors d'événements pluvieux, une dégradation plus importante de la qualité des eaux a pu être mise en évidence. La diversité des sources de contamination implique une démarche multi-acteurs. A des actions ponctuelles de remédiation, s'ajoutent des mesures préventives d'accompagnement au sein de périmètres de protection. Une meilleure connaissance de la dynamique des germes fécaux dans le milieu naturel et du phénomène d'auto-épuration bactérienne devrait permettre de mieux définir les limites de ces périmètres de protection [less ▲]

Detailed reference viewed: 19 (3 ULg)
Full Text
Peer Reviewed
See detailEvidence for a persistent and extensive greening trend in Eurasia inferred from satellite vegetation index data.
Bogaert, Jan ULg; Zhou, L; Tucker, C J et al

in Journal of Geophysical Research (2002), 107(D11),

Detailed reference viewed: 15 (1 ULg)
Full Text
Peer Reviewed
See detailAssessment of topical hypopigmenting agents on solar lentigines of Asian women.
Hermanns, Jean-François ULg; Petit, Ludivine; Pierard, Claudine ULg et al

in Dermatology : International Journal for Clinical & Investigative Dermatology (2002), 204(4), 281-6

BACKGROUND: So-called darkened age spots encompass distinct pathological processes. The efficacy of topical depigmenting agents is difficult to objectivate. OBJECTIVE: To assess the hypopigmenting effect ... [more ▼]

BACKGROUND: So-called darkened age spots encompass distinct pathological processes. The efficacy of topical depigmenting agents is difficult to objectivate. OBJECTIVE: To assess the hypopigmenting effect of three cosmetic formulations using objective biometrological methods. METHODS: 50 women of South-East Asian ancestry were enrolled in this pilot study. They had solar lentigines according to dermoscopic criteria. The lesions were treated by topical hypopigmenting formulations. Products were applied twice daily for 2 or 3 months. Assessments at 1-month intervals were made using narrow-band reflectance spectrophotometry, image analysis of video-recorded ultraviolet light reflection and photodensitometry- and image-analysis-assisted corneomelametry. RESULTS: A 20% azelaic acid formulation and another one containing 5% ascorbyl glucosamine, 1% kojic acid and alpha-hydroxyacid esters appeared inefficacious on solar lentigines. A stabilized soy extract showed a better although modest lightening effect when assessed by corneomelametry. The subclinical or faint mottled skin revealed by ultraviolet light examination better responded (p < 0.05) to treatments. CONCLUSION: Focal epidermal hyperpigmentation is better controlled by topical whitening agents when the increase in melanin content reflects a modest functional hyperactivity of melanocytes. [less ▲]

Detailed reference viewed: 43 (0 ULg)
Full Text
Peer Reviewed
See detailDetermination of a coalescence parameter from batch-settling experiments
Henschke, M; Schlieper, L; Pfennig, Andreas ULg

in Chemical Engineering Journal (2002), 85((2-3)), 369-378

Detailed reference viewed: 21 (0 ULg)
Full Text
Peer Reviewed
See detailInvasive tricholemmal carcinoma of the nose.
Van Zele, Dirk; Arrese Estrada, Jorge ULg; Heymans, Olivier et al

in Dermatology : International Journal for Clinical & Investigative Dermatology (2002), 204(4), 315-7

Tricholemmal carcinoma is a rare entity. It must be distinguished from the benign proliferating variant of the tricholemmal cyst. We report a case of tricholemmal carcinoma massively invading the nose ... [more ▼]

Tricholemmal carcinoma is a rare entity. It must be distinguished from the benign proliferating variant of the tricholemmal cyst. We report a case of tricholemmal carcinoma massively invading the nose. The neoplasm was excised surgically with a satisfactory outcome. [less ▲]

Detailed reference viewed: 41 (0 ULg)
Full Text
Peer Reviewed
See detailPestiviroses des petits ruminants. La maladie des frontières chez les ovins
Thiry, Etienne ULg; Buonavoglia, C.

in Point Vétérinaire (2002), 33

Detailed reference viewed: 28 (0 ULg)
Full Text
Peer Reviewed
See detailIconographies de saints mosans : Liège, ULG Wittert 82
George, Philippe ULg

in Bulletin de la Société Royale Le Vieux-Liège (2002)

Detailed reference viewed: 17 (6 ULg)
Full Text
Peer Reviewed
See detailRecent developments in infectious bovine rhinotracheitis
Thiry, Etienne ULg; Lemaire, Mylène; Keuser, Véronique et al

in Cattle Practice (2002), 10

Detailed reference viewed: 10 (1 ULg)
Full Text
Peer Reviewed
See detailEffect of prenatal androgen receptor antagonist or aromatase inhibitor on the differentiation of neuronal Fos responses to estrous female pheromones in the rat accessory olfactory system
Dominguez, Emilio; Portillo, Wendy; Baum, Michael J et al

in Physiology & Behavior (2002), 75

Many socially relevant odors are detected in rodent species by the vomeronasal organ and subsequently processed by the accessory olfactory system (AOS). We previously found that gonadectomized male and ... [more ▼]

Many socially relevant odors are detected in rodent species by the vomeronasal organ and subsequently processed by the accessory olfactory system (AOS). We previously found that gonadectomized male and female rats treated in adulthood with testosterone propionate (TP) showed equivalent Fos responses in the AOS to odors derived from estrous females. Likewise, in contrast with numerous other mammalian species, gonadectomized female rats show surprisingly high levels of male-typical mounting behavior in response to adult TP. We tested the hypothesis that prenatal testosterone (T) exposure, acting via androgen receptors (ARs) or via estrogen receptors, masculinizes the AOS in rats of both sexes. Pregnant dams were treated with either the AR blocker, Flutamide, the aromatase inhibitor, 1,4,6-androstatriene-3,17-dione (ATD), or nothing (control) to assess the role of prenatal androgen and estradiol receptor activation, respectively, in this masculinization. Beginning at birth, male and female offspring were injected subcutaneously (sc) every other day with either ATD (pre- and neonatal ATD group) or oil vehicle (Flutamide and control groups) until postnatal Day 12. Subjects were gonadectomized as adults, hormonally treated and tested for different behaviors before having their AOS Fos responses to estrous female odors assessed. Prenatal treatment with Flutamide (but not ATD) significantly decreased anogenital distance and severely impaired intromissive and ejaculatory behaviors in males tested after TP replacement without disrupting mounting capacity in either sex. Pre- and neonatal treatment with ATD (but not Flutamide) enhanced lordosis responsiveness in males tested after sc injections of estradiol and progesterone, whereas these perinatal treatments had no effect on any aspect of masculine coital performance in either sex. After TP treatment, male and female control subjects preferred to approach a tethered stimulus female as opposed to a male, and prenatal Flutamide or perinatal ATD treatments did not modify this pattern of partner preference. Neuronal Fos responses to estrous odors were (as in previous studies) identical in the AOS of gonadectomized TP-treated control males and females. Prenatal Flutamide or perinatal ATD treatments failed to disrupt consistently this profile of Fos responses to estrous odors in the AOS of rats of either sex. These behavioral and neuroanatomical findings raise the possibility that the similar level of male-typical responsiveness to social odors that occurs in male and female rats after adult TP treatment results from nonsteroid-hormone-dependent, species-specific factors that act perinatally in the brains of rats of both sexes. [less ▲]

Detailed reference viewed: 45 (0 ULg)
Full Text
Peer Reviewed
See detailReplicon typing of the F18 fimbriae encoding plasmids of enterotoxigenic and verotoxigenic Escherichia coli strains from porcine postweaning diarrhoea and oedema disease
Fekete, PZs; Gérardin, J.; Jacquemin, E. et al

in Veterinary Microbiology (2002), 85

Detailed reference viewed: 11 (0 ULg)
Full Text
See detailPistes de réflexion pour développer, à l’école, les compétences de tous les élèves
Beckers, Jacqueline ULg

in L’École valdôtaine (2002), 55

Detailed reference viewed: 34 (1 ULg)
Full Text
See detailLa forêt et la protection du sol dans le cadre d'aménagement forestiers intégrés
Huart, O.; Adam, V.; Quevy, B. et al

in Fiche technique (2002), (14),

Detailed reference viewed: 41 (12 ULg)
Full Text
See detailLes contes de Grimm: présentation de quelques inconnus en français qui témoignent de l'entrée des Contes de l'Enfance et du Foyer dans la littérature de jeunesse
Delbrassine, Daniel ULg

in Cahiers du CLPCF (2002), 2

Présentation et traduction de contes retranchés dans le recueil des Grimm

Detailed reference viewed: 41 (4 ULg)
Full Text
See detailBELL, regular 2002 issue
Delrez, Marc ULg

in Belgian Essays on Language and Literature (2002)

Detailed reference viewed: 17 (2 ULg)
Full Text
See detailPregnancy and inflammatory bowel disease
Louis, Edouard ULg; Belaiche, Jacques ULg

in Acta Gastro-Enterologica Belgica (2002), 65(4, Oct-Dec), 230-232

Overall, around 25% of women with inflammatory bowel disease will conceive during their disease. Most of the women with inflammatory bowel disease will have a normal pregnancy and healthy children ... [more ▼]

Overall, around 25% of women with inflammatory bowel disease will conceive during their disease. Most of the women with inflammatory bowel disease will have a normal pregnancy and healthy children. However, specific problems may arise related to these pregnancies. This paper reviews what is known on fertility, risk of disease transmission, effect of the disease on the pregnancy and the reverse, delivery, medical follow up and treatment as well as breastfeeding in the setting of inflammatory bowel disease. [less ▲]

Detailed reference viewed: 15 (2 ULg)
Full Text
Peer Reviewed
See detailInfiltrative lipoma in the foreleg of a horse
Olle, Edwin; Saunders, Jimmy; Desmecht, Daniel ULg

in Vlaams Diergeneeskundig Tijdschrift (2002), 71

This case report describes an infiltrative lipoma in a horse. A slow-growing mass, detected early afterbirth, was present at the caudal aspect of the foreleg (antebrachium) of a 2-year-old gelding ... [more ▼]

This case report describes an infiltrative lipoma in a horse. A slow-growing mass, detected early afterbirth, was present at the caudal aspect of the foreleg (antebrachium) of a 2-year-old gelding. Cytological fea-tures were that of a benign lipoma. Surgical resection was attempted but failed due to the infiltrative natureof the mass. Consequently, the horse was euthanized. Histopathology revealed an infiltrative lipoma. Thistumor is histologically benign but surgical resection is usually impossible due to its infiltrative nature. [less ▲]

Detailed reference viewed: 39 (2 ULg)
Full Text
Peer Reviewed
See detailLa reconnaissance et le financement de la laïcité organisée (I)
Sägesser, Caroline; Husson, Jean-François ULg

in Courrier Hebdomadaire du CRISP (2002), (1756), 3-43

This publication details the political process having led to the official recognition of the free thinkers organisations on a footing quite silmilar to religious denominations.

Detailed reference viewed: 51 (7 ULg)
Full Text
Peer Reviewed
See detailThe flowering process: On the track of controlling factors in Sinapis alba
Bernier, Georges ULg; Corbesier, Laurent; Périlleux, Claire ULg

in Russian Journal of Plant Physiology (2002), 49(4, JUL-AUG), 445-450

The major physiological theories of the control of the flowering process are first presented and their inferences tested in the long-day plant Sinapis alba. Then, the genetic analyses of the control of ... [more ▼]

The major physiological theories of the control of the flowering process are first presented and their inferences tested in the long-day plant Sinapis alba. Then, the genetic analyses of the control of flowering time in Arabidopsis thaliana are also summarized with a brief overview of the several pathways, each including several genes, identified. Clearly, both the experimental data of physiological experiments and the multiplicity of interacting genetic pathways best support the theory of the multifactorial control of flowering. This is further shown by the fact that a critical gene expressed in the shoot meristem at floral transition in S. alba, MADS A (orthologous to A. thaliana SOC1), can be upregulated by a single dose of a cytokinin or a gibberellin, without leading to flowering. This indicates that the floral shift requires upregulation of other genes by other factors. [less ▲]

Detailed reference viewed: 46 (0 ULg)
Full Text
Peer Reviewed
See detailReview of present European environmental policies and legislation involving cultural heritage
Teller, Jacques ULg; Bond, Alan

in Environmental Impact Assessment Review (2002), 22

Cultural heritage is being addressed by a number of Charters and Conventions and it is clear that its consideration within decision-making processes is progressively becoming a real challenge, both for ... [more ▼]

Cultural heritage is being addressed by a number of Charters and Conventions and it is clear that its consideration within decision-making processes is progressively becoming a real challenge, both for developers and public authorities. Against this background, this paper reviews the environmental assessment framework developed by the European Community, as this should increasingly influence decision making about cultural heritage in an urban setting. The legislative framework for access to environmental information is also reviewed because of its relevance to the decision-making process. The Directives on Environmental Impact Assessment and Strategic Environmental Assessment both require a consideration of cultural heritage in decision making. This requirement can go some way to addressing the paradox in the European Community’s position whereby the Community wishes to conserve and enhance its own cultural identity whilst, at the same time, cultural heritage is usually defined at a local level. The present paper suggests that, given their flexibility, the two European Community Directives on environmental assessment constitute a promising opportunity to address this seeming paradox, but that there is a significant gap between legal obligations and the methodological tools to meet them. [less ▲]

Detailed reference viewed: 42 (9 ULg)
Full Text
Peer Reviewed
See detailAnxiety and hyperventilation in mild to moderate asthmatics
Delvaux, Muriel ULg; Fontaine, Ovide ULg; Bartsch, Pierre ULg

in European Review of Applied Psychology = Revue Européenne de Psychologie Appliquée (2002), 52(2), 149-160

Studied breathing patterns and hyperventilation symptoms in 80 adolescents and adults (aged 16-60 yrs) with mild to moderate asthma and 40 adolescents and adults (aged 16-60 yrs) with no asthma symptoms ... [more ▼]

Studied breathing patterns and hyperventilation symptoms in 80 adolescents and adults (aged 16-60 yrs) with mild to moderate asthma and 40 adolescents and adults (aged 16-60 yrs) with no asthma symptoms (healthy controls). Data on pulmonary function, ventilation and breathing pattern, and psychological symptoms were obtained by clinical observation and questionnaire. Asthmatic Ss were requested not to take bronchodilatation medications for 24-48 hrs prior to testing. The Anxiety Sensitivity Index-Revised (S. Taylor and Cox, 1998), the Self-Consciousness Scale-Revised (A. Fenigwstein et al, 1975), the State-Train Anxiety Inventory, the Nijmegen Questionnaire (P. van Doorn et al, 1982), the Sense of Coherence Scale (A. Antonovsky, 1987), the Positive and Negative Affect Schedule (D. Watson et al, 1988), the Beck Depression Inventory, and the Asthma Symptoms Checklist (R. A. Kinsman et al, 1973, revision by Brooks et al, 1989) were used. The results show that the asthmatic subjects have lower PetCO2 than normal subjects and that variables associated with lower PetCO2 include total volume, female gender, and negative affectivity. The results also show that female subjects and asthmatics have similar breathing patterns and compared to male subjects [less ▲]

Detailed reference viewed: 122 (5 ULg)
Full Text
Peer Reviewed
See detailRepeated intracoronary beta radiation for recurrent in-stent restenosis.
De Benedetti, E; Latchem, D; Roguelov, C et al

in Catheterization and Cardiovascular Interventions (2002), 55(2), 233-236

More than 70% of percutaneous coronary interventions are followed by a stent implantation. In-stent restenosis still occurs in 20-30% of patients and remains a therapeutic challenge. At present only ... [more ▼]

More than 70% of percutaneous coronary interventions are followed by a stent implantation. In-stent restenosis still occurs in 20-30% of patients and remains a therapeutic challenge. At present only vascular brachytherapy has been shown to be an effective treatment option. We report here one case of recurrent in-stent restenosis after vascular brachytherapy that was successfully treated by a second beta radiation treatment. Cathet Cardiovasc Intervent 2002;55:233–236. © 2002 Wiley-Liss, Inc. [less ▲]

Detailed reference viewed: 17 (2 ULg)
Peer Reviewed
See detailPharmacologic treatment of inner ear: from basic science to the patient.
Lefèbvre, Philippe ULg; Staecker, H.; Van de Water, T. et al

in Acta Oto-Rhino-Laryngologica Belgica (2002), 56(1), 45-9

Most of the deafness are of sensorineural origin and are characterized by a loss of hair cells and of spiral ganglion neurons. At the present time, hearing aids are the only treatment. However, in some ... [more ▼]

Most of the deafness are of sensorineural origin and are characterized by a loss of hair cells and of spiral ganglion neurons. At the present time, hearing aids are the only treatment. However, in some diseases of the inner ear, pharmacological treatment have been proposed and used successfully. In this paper, we will review some basic science aspects of the biology of the neurosensory structures of the inner ear, in particular of the auditory neurons, that lead to the rationale of some treatments for the inner ear diseases. Developmental studies, neuronal cell culture experiments, and analyses of gene knockout animals reveal a number of growth factors which are important for the rescue and repair of injured auditory neurons in the inner ear. These factors rescue the injured auditory neurons in vivo. Furthermore, perfusion of antioxydant to the cochlea prevented the hearing loss induced by cisplatin. These in vitro and in vivo experiments demonstrate that it is possible to manipulate the neurosensory structures of the inner ear and provide an effective treatment to prevent the degeneration of the neurons. The molecules or drugs can be administered locally to the inner ear through a direct perilymphatic perfusion or through the round window membrane. As an example, we will discuss the treatment of patients suffering from idiopathic sensorineural hearing loss which can be treated successfully by a perfusion through the round window membrane, improving their hearing threshold and their speech discrimination. [less ▲]

Detailed reference viewed: 33 (7 ULg)
Full Text
Peer Reviewed
See detailTNF-alpha protects human primary articular chondrocytes from nitric oxide-induced apoptosis via nuclear factor-kappaB
Relic, Biserka ULg; Bentires-Alj, Mohamed; Ribbens, Clio ULg et al

in Laboratory Investigation : Journal of Technical Methods & Pathology (2002), 82(12), 1661-1672

TNF-alpha plays a key role in rheumatoid arthritis, but its effect on chondrocyte survival is still conflicting. In the present study, we tested how TNF-alpha influences chondrocyte survival in response ... [more ▼]

TNF-alpha plays a key role in rheumatoid arthritis, but its effect on chondrocyte survival is still conflicting. In the present study, we tested how TNF-alpha influences chondrocyte survival in response to nitric oxide (NO)-related apoptotic signals, which are abundant during rheumatoid arthritis. Human primary articular chondrocytes or cartilage explants were pretreated with TNF-alpha for 24 hours and then treated with the proapoptotic NO donor sodium-nitro-prusside (SNP) for an additional 24 hours. TNF-alpha pretreatment markedly protected chondrocytes from SNP-induced cell death. Preincubation of chondrocytes with TNF-alpha inhibited both SNP-induced high-molecular weight DNA fragmentation and annexin V-FITC binding. Of interest, TNF-alpha induced persistent nuclear factor-kappaB (NF-kappaB)-DNA binding activity even in the presence of SNP, mirroring apoptosis protection effects. Both the TNF-alpha antiapoptotic effect and NF-kappaB-DNA binding activity were significantly inhibited by NF-kappaB inhibitors, Bay 11-7085, MG-132, and adenovirus-expressing mutated IkappaB-alpha. Phosphatidylinositol-3 kinase inhibitor LY 294002 also markedly inhibited the antiapoptotic effect of TNF-alpha. In primary chondrocytes, TNF-alpha induced expression of the antiapoptotic protein Cox-2, which persisted in the presence of SNP, and a specific Cox-2 inhibitor significantly blocked the TNF-alpha protective effect. We therefore conclude that TNF-alpha-mediated protection of chondrocytes from NO-induced apoptosis acts through NF-kappaB and requires Cox-2 activity. [less ▲]

Detailed reference viewed: 36 (2 ULg)
Full Text
Peer Reviewed
See detailUse of a serum-free medium to produce in vitro Neospora caninum and Toxoplasma gondii tachyzoites on Vero cells
De Meerschman, F.; Rettigner, C.; Focant, Charles ULg et al

in Veterinary Research (2002), 33(2, Mar-Apr), 159-168

Neospora caninum and Toxoplasma gondii are cyst-forming coccidian parasites of human and veterinary clinical relevance. In vitro cultivation of the protozoans using Vero cells is usually performed in ... [more ▼]

Neospora caninum and Toxoplasma gondii are cyst-forming coccidian parasites of human and veterinary clinical relevance. In vitro cultivation of the protozoans using Vero cells is usually performed in order to produce antigenic materials. Quantitative and qualitative comparisons of Vero cells grown in RPMI medium supplemented either with foetal calf serum (FCS), horse serum (HS) or a specific serum-free additive (DefCell) were performed. A serum-free cell culture system used to propagate N. caninum (NC-1 isolate) and T. gondii tachyzoites (Rh stain) were compared with the other two cell culture systems. FCS supplemented media was found to be more effective than the others in promoting Vero cells and N. caninum tachyzoites. However, it was found unable to support adequate T. gondii tachyzoite proliferation. Vero cells, T. gondii and N. caninum tachyzoite production gave similar growth patterns with either HS or DefCell supplemented media. Defcell was considered as a good alternative to supplement culture medium. [less ▲]

Detailed reference viewed: 29 (4 ULg)
Full Text
See detailPrélèvement de l’isthme encéphalique pour la recherche de l’encéphalopathie spongiforme transmissible chez le mouton
Gabriel, Annick ULg; Jacobs, Christine ULg; Simoens, P.

in Annales de Médecine Vétérinaire (2002), 146(5), 295-300

Depuis le premier avril 2002, une directive de l'Union Européenne contraint la Belgique à tester les chèvres et les moutons, en plus des bovins, dans le cadre de la recherche d'encéphalopathie spongiforme ... [more ▼]

Depuis le premier avril 2002, une directive de l'Union Européenne contraint la Belgique à tester les chèvres et les moutons, en plus des bovins, dans le cadre de la recherche d'encéphalopathie spongiforme transmissible. Comme chez les bovins, le diagnostic est réalisé à partir d'un prélèvement de l'isthme encéphalique au niveau de l'obex. Des différences morphologiques entre l'isthme encéphalique des moutons et chèvres et celui des bovins ont nécessité quelques ajustements de la méthode de prélèvement. Dans cette étude, les particularités techniques du prélèvement et certaines caractéristiques morphologiques du cerveau ovin sont décrites. Les différences majeures, par rapport aux bovins, sont d'une part les dimensions plus petites, et d'autre part le rétrécissement caudal très marqué de l'isthme encéphalique. [less ▲]

Detailed reference viewed: 46 (4 ULg)
Full Text
See detailApplication des barycentres en logique floue
Henry, Valérie ULg

in Mathématique et Pédagogie (2002), 139

Detailed reference viewed: 27 (1 ULg)
Full Text
Peer Reviewed
See detailEffect of nutritional antioxidant supplementation on systemic and pulmonary antioxidant status, airway inflammation and lung function in heaves-affected horses
Kirschvink, Nathalie; Fievez, Laurence ULg; Bougnet, V. et al

in Equine Veterinary Journal (2002), 34

An oxidant/antioxidant imbalance in favour of oxidants has been identified as playing a decisive role in the pathogenesis of chronic inflammatory airway diseases. Nutritional antioxidant supplementation ... [more ▼]

An oxidant/antioxidant imbalance in favour of oxidants has been identified as playing a decisive role in the pathogenesis of chronic inflammatory airway diseases. Nutritional antioxidant supplementation might reduce oxidative damage by enhancement of the antioxidant defence, thereby modulating inflammatory processes. In a placebo-controlled, blind study, it was tested whether a dietary antioxidant supplement administered for 4 weeks would improve lung function and reduce airway inflammation in heaves-affected horses. Eight horses in clinical remission of heaves were investigated at rest and after a standardised exercise test before and after treatment with an antioxidant supplement (consisting of a mixture of natural antioxidants including vitamins E and C and selenium from a variety of sources) or placebo (oatfeed pellets without additive). Pulmonary function and exercise tolerance were monitored; systemic and pulmonary lining fluid uric acid, glutathione and 8-epi-PGF(2alpha) were analysed, and bronchoalveolar lavage (BAL) cytology and inflammatory scoring of the airways were performed. The antioxidant treatment significantly improved exercise tolerance and significantly reduced endoscopic inflammatory score. Plasma uric acid concentrations were significantly reduced, suggesting downregulation of the xanthine-dehydrogenase and xanthine-oxydase pathway. Haemolysate glutathione showed a nonsignificant trend to increase, while plasma 8-epi-PGF(2alpha) remained unchanged. Pulmonary markers and BAL cytology were not significantly affected by antioxidant supplementation. The present study suggests that the antioxidant supplement tested modulated oxidant/antioxidant balance and airway inflammation of heaves-affected horses [less ▲]

Detailed reference viewed: 43 (3 ULg)
Full Text
Peer Reviewed
See detailERK and calcium in activation of HIF-1.
Mottet, Denis ULg; Michel, Gaetan; Renard, Patricia et al

in Annals of the New York Academy of Sciences (2002), 973

HIF-1 (hypoxia-inducible factor-1) is the main transcription factor responsible for increased gene expression in hypoxia. The oxygen-dependent regulation of HIF-1 activity occurs at multiple levels in ... [more ▼]

HIF-1 (hypoxia-inducible factor-1) is the main transcription factor responsible for increased gene expression in hypoxia. The oxygen-dependent regulation of HIF-1 activity occurs at multiple levels in vivo. The mechanisms regulating HIF-1alpha protein expression have been most extensively analyzed, but the ones modulating HIF-1 transcriptional activity remain unclear. Changes in the phosphorylation and/or redox status of HIF-1alpha certainly play a role. Here, we show that ionomycin could activate HIF-1 transcriptional activity in a way that is additive to the effect of hypoxia without affecting HIF-1alpha protein level and HIF-1 DNA binding capacity. In addition, a calmodulin dominant-negative mutant as well as BAPTA, an intracellular calcium chelator, inhibited the hypoxia-induced HIF-1 activation. These results indicate that elevated calcium in hypoxia could participate in HIF-1 activation. PD98059, an inhibitor of the ERK pathway, but not KN-93, an inhibitor of calmodulin kinases II and IV, also blocked HIF-1 activation by hypoxia and by ionomycin. Altogether, these results suggest that calcium and calmodulin would act upstream of ERK in the hypoxia signal transduction pathway leading to enhanced HIF-1 transcriptional activity. [less ▲]

Detailed reference viewed: 65 (2 ULg)
Full Text
Peer Reviewed
See detailAngot salue Guibert
Demoulin, Laurent ULg

in Critique : Revue Générale des Publications Françaises et Etrangères (2002), 663-664

Le roman L'Inceste de Christine Angot s'ouvre presque sur les mêmes phrases que le roman A l'ami qui ne m'a pas sauvé la vie d'Hervé Guibert. Quelle est la valeur de ce détournement textuel et quel rôle ... [more ▼]

Le roman L'Inceste de Christine Angot s'ouvre presque sur les mêmes phrases que le roman A l'ami qui ne m'a pas sauvé la vie d'Hervé Guibert. Quelle est la valeur de ce détournement textuel et quel rôle joue-t-il dans le roman d'Angot? [less ▲]

Detailed reference viewed: 78 (8 ULg)
Full Text
Peer Reviewed
See detailCollision-induced dissociation of 16-mer DNA duplexes with various sequences: evidence for conservation of the double helix conformation in the gas phase
Gabelica, Valérie ULg; De Pauw, Edwin ULg

in International Journal of Mass Spectrometry (2002), 219(1), 151-159

The MS/MS of 11 different 16-mer non-self-complementary DNA duplexes with various sequences has been under-taken with a quadrupole-TOF hybrid instrument, The comparison of the dissociation yields for ... [more ▼]

The MS/MS of 11 different 16-mer non-self-complementary DNA duplexes with various sequences has been under-taken with a quadrupole-TOF hybrid instrument, The comparison of the dissociation yields for complexes having different amounts of GC base pairs, though complicated by side-reactions like single-strand fragmentation, confirms the effect of the number of GC base pairs. More importantly, for complexes containing the same fraction of GC and different base sequences, the fragmentation yield remarkably parallels the DeltaH(diss) in solution calculated by a nearest-neighbor model for B-DNA. In addition to specific hydrogen bonding interactions, base stacking interactions also seem to survive in the gas phase and the conformation is conserved in the gas phase. Moreover, we have studied the uneven partition of the negative charges between the single strands, which was found to be directed by the nature of the terminal bases exclusively, and correlated with the gas-phase acidities of the (sugar-phosphate-sugar-base) species. [less ▲]

Detailed reference viewed: 31 (2 ULg)
Full Text
See detailDe la pluridisciplinarité à l'interdisciplinarité. Réflexions critiques sur la formation des enseignants en sciences sociales
Guillaume, Jean-François ULg; Barras, Dominique; Xhonneux, Michel ULg

in Puzzle (2002), 11

Réflexion sur le dispositif de formation des enseignants en sciences sociales, à l'Université de Liège, et sur les conditions requises pour une approche "interdisciplinaire".

Detailed reference viewed: 75 (4 ULg)
Full Text
Peer Reviewed
See detailDoes sulfide detoxication occur in the gills of the hydrothermal vent shrimp, Rimicaris exoculata?
Compère, Philippe ULg; Martinez, Anne-Sophie; Charmantier-Daures, Mireille et al

in Comptes Rendus Biologies (2002), 325

Detailed reference viewed: 17 (0 ULg)
Full Text
Peer Reviewed
See detailScience et industrie: les débuts du taylorisme en France
Geerkens, Eric ULg

in Archives Internationales d'Histoire des Sciences (2002), 52(149), 385-386

Detailed reference viewed: 38 (7 ULg)
Full Text
Peer Reviewed
See detailInfection de ruminants par des herpèsvirus hétérolgogues
Thiry, Etienne ULg; Lemaire, Mylène

in Point Vétérinaire (2002), 32

Detailed reference viewed: 7 (0 ULg)
Full Text
Peer Reviewed
See detailAdvantages and drawbacks of nanospray for studying noncovalent protein-DNA complexes by mass spectrometry
Gabelica, Valérie ULg; Vreuls, Christelle ULg; Filée, Patrice ULg et al

in Rapid Communications in Mass Spectrometry : RCM (2002), 16(18), 1723-1728

The noncovalent complexes between the BlaI protein dimer (wild-type and GM2 mutant) and its double-stranded DNA operator were studied by nanospray mass spectrometry and tandem mass spectrometry (MS/MS ... [more ▼]

The noncovalent complexes between the BlaI protein dimer (wild-type and GM2 mutant) and its double-stranded DNA operator were studied by nanospray mass spectrometry and tandem mass spectrometry (MS/MS). Reproducibility problems in the nanospray single-stage mass spectra are emphasized. The relative intensities depend greatly on the shape of the capillary tip and on the capillary-cone distance. This results in difficulties in assessing the relative stabilities of the complexes simply from MS' spectra of protein-DNA mixtures. Competition experiments using MS/MS are a better approach to determine relative binding affinities. A competition between histidine-tagged BlaIWT (BlaIWTHis) and the GM2 mutant revealed that the two proteins have similar affinities for the DNA operator, and that they co-dimerize to form heterocomplexes. The low sample consumption of nanospray allows MS/MS spectra to be recorded at different collision energies for different charge states with 1 muL of sample. The MS/MS experiments on the dimers reveal that the GM2 dimer is more kinetically stable in the gas phase than the wild-type dimer. The MS/MS experiments on the complexes shows that the two proteins require the same collision energy to dissociate from the complex. This indicates that the rate-limiting step in the monomer loss from the protein-DNA complex arises from the breaking of the protein-DNA interface rather than the protein-protein interface. The dissociation of the protein-DNA complex proceeds by the loss of a highly charged monomer (carrying about two-thirds of the total charge and one-third of the total mass). MS/MS experiments on a heterocomplex also show that the two proteins BlaIWTHis and BlaIGM2 have slightly different charge distributions in the fragments. This emphasizes the need for better understanding the dissociation mechanisms of biomolecular complexes. [less ▲]

Detailed reference viewed: 81 (11 ULg)
Full Text
Peer Reviewed
See detailEtude longitudinale de l'hémodynamique artérielle mésentérique chez le nouveau-né prématuré stable en alimentation entérale
Battisti, Oreste ULg; Withofs, L.; Adant-François, A. et al

in Louvain Medical (2002), 121

Detailed reference viewed: 22 (9 ULg)
Full Text
Peer Reviewed
See detailDes "dermatomycoses banales" qui ne pardonnent pas.
Braham, C.; Fraiture, A. L.; Quatresooz, Pascale ULg et al

in Revue Médicale de Liège (2002), 57(5), 317-9

Two young adults presented an interdigital intertrigo and a dyschromic nail alteration, respectively. They were adept of intense sport swimming in pools. Lesions had been misdiagnosed as athlete's foot ... [more ▼]

Two young adults presented an interdigital intertrigo and a dyschromic nail alteration, respectively. They were adept of intense sport swimming in pools. Lesions had been misdiagnosed as athlete's foot and onychomycosis, respectively. Several antifungal treatments had been tried without success. After many months of inadequate management, the dermatological examination revealed the presence of two malignant melanomas corresponding to the eroded acrolentiginous and nodular subungueal types, respectively. [less ▲]

Detailed reference viewed: 81 (2 ULg)
Full Text
Peer Reviewed
See detailLe médecin du travail face au harcèlement moral au travail : constats et prespectives
Gruslin, Isabelle ULg; Italiano, Patrick ULg; Faulx, Daniel ULg

in Médecine du Travail & Ergonomie= Arbeidsgezondheidszorg & Ergonomie (2002), 39(2), 61-68

L'article de D. Faulx et C. Geuzaine, paru dans le numéro 3-2000 de cette revue, aborde l'étendue du phénomène du harcèlement moral ainsi que les aspects juridiques de la définition, la description du ... [more ▼]

L'article de D. Faulx et C. Geuzaine, paru dans le numéro 3-2000 de cette revue, aborde l'étendue du phénomène du harcèlement moral ainsi que les aspects juridiques de la définition, la description du processus, ses conséquences médicales et les facteurs de risque. Dans la suite de cette étude, nous présentons ici les résultats d'une enquête menée auprès des médecins du travail, en tant que témoins et intervenants privilégiés dans le domaine du harcèlement. Cette enquête vise à apporter des informations descriptives originales concernant les attitudes, les opinions et représentations des médecins du travail par rapport au phénomène de harcèlement moral. En outre, elle est l'occasion de tester une série d'hypothèses sur les facteurs pouvant influencer l'attitude des médecins du travail vis-à-vis du harcèlement moral. [less ▲]

Detailed reference viewed: 239 (23 ULg)
Full Text
Peer Reviewed
See detailRadiologic features poorly predict clinical outcomes in knee osteoarthritis.
Bruyère, Olivier ULg; Honore, Aline; Rovati, Lucio C et al

in Scandinavian Journal of Rheumatology (2002), 31(1), 13-6

OBJECTIVES: To assess the impact of radiographic severity and progression on pain and disability. METHODS: Measurements of mean joint space width (JSW), narrowest join space (NJS) point and assessment of ... [more ▼]

OBJECTIVES: To assess the impact of radiographic severity and progression on pain and disability. METHODS: Measurements of mean joint space width (JSW), narrowest join space (NJS) point and assessment of symptoms by the WOMAC questionnaire were performed at baseline and after three years in 212 subjects over 50 years with primary knee OA. RESULTS: At baseline, JSW and NJS were not significantly correlated with the scores recorded for the WOMAC global index or its pain, stiffness or function subscales. A statistically significant correlation was observed between the joint space narrowing over three years and the changes observed in the pain subscale of the WOMAC during the same period. The three-year changes in the global WOMAC index in patients within the lowest and the highest quartiles of mean joint space width at baseline showed, in both cases, a statistically (p<0.05) significant favorable difference between patients treated with glucosamine sulphate and those having received placebo. CONCLUSION: Radiographic and clinical progressions of the disease are significantly associated but the clinical relevance of the association is questionable. [less ▲]

Detailed reference viewed: 39 (7 ULg)
Full Text
Peer Reviewed
See detailThe effect of an acute energy deficit on the hormone profile of dominant follicles in dairy cows
Comin, Antonella; Gerin, Daniele; Cappa, Alberto et al

in Theriogenology (2002), 58

Detailed reference viewed: 10 (0 ULg)
Full Text
Peer Reviewed
See detailInfluence of the metal electronic properties on the sum-frequency generation spectra of dodecanethiol self-assembled monolayers on Pt (111), Ag (111) and Au (111) single crystals
Dreesen, Laurent ULg; Humbert, Christophe; Celebi, M. et al

in Applied Physics B : Lasers & Optics (2002), 74

Infrared-visible sum-frequency generation (SFG) spectroscopy is performed at different visible wavelengths between 450 and 650 nm in order to investigate the interaction between metallic substrates (Pt ... [more ▼]

Infrared-visible sum-frequency generation (SFG) spectroscopy is performed at different visible wavelengths between 450 and 650 nm in order to investigate the interaction between metallic substrates (Pt, Ag and Au) and 1-dodecanethiol self-assembled monolayers. We show that such measurements provide a means to study the electronic properties of metals as well as the interference phenomena between the SFG signals from the adsorbate and the substrate. The common features of the three interfaces are the vibration modes of the terminal methyl groups. However, these resonances appear as peaks for Pt (111) and as dips in the case of Ag (111). Their shape is not modified when the visible wavelength is tuned between 450 and 650 nm. Moreover, the metal sum-frequency generation contribution is slightly modified in that spectral range. For Au (111) samples, the sum-frequency generation spectrum drastically evolves with the visible wavelength: the peak resonant sum-frequency generation signal at 450 nm becomes rather dip-shaped at 650 nm. The non-linear response of gold is also enhanced when the wavelength associated with the sum-frequency process is close to 480 nm. These results are interpreted on the basis of the metal electronic properties that are responsible for the non-resonant contribution to the SFG signal. [less ▲]

Detailed reference viewed: 16 (2 ULg)
Full Text
Peer Reviewed
See detailL’arrêt n°41/2002 de la Cour d’arbitrage : de la notion constitutionnelle de droit politique à la notion de "droit civil" au sens de la Convention européenne des droits de l’homme
Rosoux, Géraldine ULg

in Revue de Jurisprudence de Liège, Mons et Bruxelles (2002)

The article analyzes the impact of the conventional concept of "civil right" (art. 6 E.C.H.R.) on the constitutional distinction between civil and political rights (art. 144-145 Const.).

Detailed reference viewed: 66 (17 ULg)
Peer Reviewed
See detailTime-resolved laser spectroscopy of multiply ionized atoms: Natural radiative lifetimes in CeIV
Zhang, Z. G.; Svanberg, S.; Quinet, Pascal ULg et al

in Physical Review Letters (2001), 87(27),

Radiative lifetimes have been measured for two excited levels of Ce IV using the time-resolved laser-induced fluorescence technique. Ce3+ ions were produced in a laser-induced plasma. In the measurements ... [more ▼]

Radiative lifetimes have been measured for two excited levels of Ce IV using the time-resolved laser-induced fluorescence technique. Ce3+ ions were produced in a laser-induced plasma. In the measurements, a suitable magnetic field was applied to reduce the recombination between electrons and the ions and thus the background light from the recombination, and special care was exercised to avoid flight-out-of-view effects on the lifetime measurements for the high-velocity ions. The experimental lifetime results, tau = 30(2) ns for the level 49 737 cm(-1) and tau = 30(3) ns for the level 52 226 cm(-1), were compared with relativistic Hartree-Fock calculations (tau = 30.5 and 30.0 ns) indicating a particularly excellent agreement. [less ▲]

Detailed reference viewed: 19 (1 ULg)
Peer Reviewed
See detailMeasurement of radiative lifetimes and determination of transition probabilities of astrophysical interest in HoIII
Biémont, Emile ULg; Palmeri, P.; Quinet, Pascal ULg et al

in Monthly Notices of the Royal Astronomical Society (2001), 328(4), 1085-1090

Lifetimes of six levels belonging to the 4f(10)6p configuration of Ho III have been measured for the first time using the time-resolved laser-induced fluorescence method. They are compared with ... [more ▼]

Lifetimes of six levels belonging to the 4f(10)6p configuration of Ho III have been measured for the first time using the time-resolved laser-induced fluorescence method. They are compared with multiconfigurational pseudo-relativistic Hartree-Fock calculations. A very good agreement is found. Using the experimental lifetimes and theoretical branching fractions, a first set of transition probabilities of astrophysical interest has been obtained for this ion. [less ▲]

Detailed reference viewed: 11 (1 ULg)
Full Text
Peer Reviewed
See detailFacies architecture and diagenesis of Belgian Late Frasnian carbonate mounds
Boulvain, Frédéric ULg

in Sedimentary Geology (2001), 145(3-4), 269-294

Late Frasnian Petit-Mont Member carbonate mounds occur in the southern pail of the Dinant Synclinorium and in the Philippeville Anticline (SW Belgium). These mounds are 30 to 80 m thick and 100 to 250 m ... [more ▼]

Late Frasnian Petit-Mont Member carbonate mounds occur in the southern pail of the Dinant Synclinorium and in the Philippeville Anticline (SW Belgium). These mounds are 30 to 80 m thick and 100 to 250 m in diameter. They are embedded in shale, nodular shale and argillaceous limestone. Based on facies mapping of 14 buildups and related off-mound sediments, these mounds typically started from below the photic and storm wave base zones and builtup into shallow water environments. Above an argillaceous limestone substrate, the first carbonate mound facies consists of spiculitic wackestone with stromatactis (PM1), which becomes progressively enriched in crinoids and corals (PM2), then in peloids, stromatoporoids and cyanobacteria (PM3). PM4 consists of algal-coral-peloid wackestone and packstone with green algae and thick algal coatings, A core of algal and microbial bindstone (PM5) sporadically occurs within large mounds. The uppermost part of these mounds may show a recurrence of facies PM2 and PM1. PM1 to PM3 are coloured red by hematite derived from microaerophilic iron bacteria; PM4 and PM5 are grey. The transition from the aphotic to the cyanobacterial photic zone is recorded in the succession PM2-PM3; the transition from the cyanobacterial to the green algal photic zone is recorded by PM3-PM5. Storm wave base was reached within PM3 and fair-weather wave base within PM5. This paleobathymetric interpretation suggests a depth of 100-150 in during initial establishment of PM1. Three types of mounds can be distinguished on the basis of geometry and facies architecture: (1) "Les Bulants"-type mounds display a continuous vertical facies succession (PM2-3-4-5) and low relief, (2) although exhibiting the same facies succession as "Les Bulants", "Les Wayons"-type mounds show a distinct relief with steep flanks and bioclastic talus; (3) "St.-Remy" mounds consist exclusively of PM1 and PM2, bioclastic flank deposits are not observed. From (1) to (3), these mound types represent successive deepening down a ramp. Biostratigraphic correlation on a regional scale provides good evidence that relative sea-level changes largely controlled lateral and vertical transitions of facies. Beyond that, hypoxic conditions are indicated by the sponge and iron-bacteria consortium in lower parts of the mounds. This is in agreement with the general assumption of stratified water masses during Late Frasnian, preceding the prominent Lower Kellwasser crisis. Cementation began with a radiaxial synsedimentary cement. A fringe of meteoric phreatic cement, initially nonluminescent, then with a bright orange luminescence, occurs in all mounds. It is contemporaneous with a nonluminescent pervasive cement of grainstones deposited in littoral areas. Differentiation between the (reducing) mounds and the (oxidizing) littoral area resulted from better aquifer circulation in sedimentary bodies close to the recharge area. Late burial cements occlude all the remaining porosity and are contemporaneous with the opening of the Variscan fracture system. (C) 2001 Elsevier Science B.V. All rights reserved. [less ▲]

Detailed reference viewed: 55 (3 ULg)
See detailComparative effect of hormone replacement therapy on bone mass density and skin tensile properties
Pierard, Gérald ULg; Vanderplaetsen, S.; Pierard-Franchimont, Claudine ULg

in Maturitas (2001), 40(3), 221-227

Objectives: connective tissues constitutive of skin and bones are affected during the climacteric. Hormone replacement therapy (HRT) can help mitigate their atrophy. The aim of this study was to compare ... [more ▼]

Objectives: connective tissues constitutive of skin and bones are affected during the climacteric. Hormone replacement therapy (HRT) can help mitigate their atrophy. The aim of this study was to compare the HRT effect on the skin tensile properties and bone mass density. Methods: a total of 120 postmenopausal women (60 untreated, 60 receiving HRT) were enrolled in the study. Skin tensile properties were assessed on the volar forearm using a computerized suction device. A 500 mbar suction was applied through a 4-mm diameter hollow probe. Two operating modes were applied using a steep and a progressive Suction, respectively. BMD was measured on the hip, femoral neck and lumbar spine using dual X-ray absorptiometry. Results: in both groups of women skin elasticity was correlated with BMD. HRT significantly reduced the climacteric-associated decline in skin elasticity. A trend in better preserved BMD was also found in these women without, however, reaching significance. Conclusions: it is concluded that measures of the skin tensile properties can be sensitive enough to disclose HRT efficacy upon connective tissue atrophy. Any decrease in skin elasticity during the climacteric should prompt to perform a BMD assessment. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved. [less ▲]

Detailed reference viewed: 22 (0 ULg)
Full Text
Peer Reviewed
See detailA novel approach for extracting time-delays from lightcurves of lensed quasar images
Burud, I.; Magain, Pierre ULg; Sohy, Sandrine ULg et al

in Astronomy and Astrophysics (2001), 380

We present a new method to estimate time delays from light curves of lensed quasars. The method is based on chi [SUP]2[/SUP] minimization between the data and a numerical model light curve. A linear ... [more ▼]

We present a new method to estimate time delays from light curves of lensed quasars. The method is based on chi [SUP]2[/SUP] minimization between the data and a numerical model light curve. A linear variation can be included in order to correct for slow long-term microlensing effects in one of the lensed images. An iterative version of the method can be applied in order to correct for higher-order microlensing effects. The method is tested on simulated light curves. When higher-order microlensing effects are present, the time delay is best constrained with the iterative method. Analysis of a published data set for the lensed double Q 0957+561 yields results in agreement with other published estimates. [less ▲]

Detailed reference viewed: 11 (0 ULg)