Publications ORBi OA
Bookmark and Share    
Full Text
Peer Reviewed
See detailMonachisme féminin au pays de Liège à la fin du XVIIe siècle : une vie sub clausura perpetua ?
Henneau, Marie-Elisabeth ULg

in Histoire, Economie et Société (2005), 3

Detailed reference viewed: 13 (1 ULg)
Full Text
Peer Reviewed
See detailStructures in Fire: yesterday, today and tomorrow
Franssen, Jean-Marc ULg

in Gottluk, D T; Lattimer, B Y (Eds.) Fire Safety Science - Proceedings of the Eighth International Symposium (2005)

This paper presents the author's view on various methods used for the evaluation of the behaviour of structures submitted to fire, namely experimental testing, tabulated data, simple calculation methods ... [more ▼]

This paper presents the author's view on various methods used for the evaluation of the behaviour of structures submitted to fire, namely experimental testing, tabulated data, simple calculation methods and numerical simulation. The evolution during the last decades, and the pertinence of these methods in different situations are discussed. The challenges that scientists and researchers are facing now and the problems that will need be addressed in the future are presented. [less ▲]

Detailed reference viewed: 52 (4 ULg)
Full Text
Peer Reviewed
See detailInterferometric fringes projection system for 3D profilometry and relief investigation
Moreau, Vincent; Laboury, Dimitri ULg; Tilkens, Bernard et al

in Optical Methods for Arts and Archaeology, Proceedings of SPIE, Vol. 5857 (2005)

We present a new 3D full-frame profilometer based on structured laser light projection method. This device takes advantage of the polarization states splitting technique for producing and shifting ... [more ▼]

We present a new 3D full-frame profilometer based on structured laser light projection method. This device takes advantage of the polarization states splitting technique for producing and shifting multiple sinusoidal Young’s interference patterns that are projected on the inspected surface. The principle of the technique is presented and we discuss the advantages of monochromatic light projection method as a mean to overcome ambient lighting for in-situ measurement. Some results that we obtained on objects from the Egyptian Department of the British Museum are presented to demonstrate that 3D laser profilometry is a worthwhile technique for epigraphic investigations where naked-eye inspections fail. [less ▲]

Detailed reference viewed: 15 (2 ULg)
Full Text
Peer Reviewed
See detailA toy model for generalised parton distributions
Cudell, Jean-René ULg; Bissey, F.; Cugnon, Joseph ULg et al

in AIP Conference Proceedings (2005), 775

Detailed reference viewed: 31 (3 ULg)
Full Text
Peer Reviewed
See detailBrouillards et mauvaises visibilités en Belgique : Analyse menée à partir des observations météorologiques effectuées dans les aéroports civils
Erpicum, Michel ULg; De Swert; Nyssen, Thierry et al

in Publications de l'Association Internationale de Climatologie (2005), 18

Detailed reference viewed: 23 (10 ULg)
Full Text
Peer Reviewed
See detailLa cité, les dèmotelè hiera et les prêtres
Pirenne-Delforge, Vinciane ULg

in Dasen, Véronique; Piérart, Marcel (Eds.) Idia kai dèmosia. Les cadres « privés » et « publics » de la religion grecque antique (2005)

Detailed reference viewed: 47 (1 ULg)
Full Text
Peer Reviewed
See detailLa langue comme facteur d'intégration ou d'exclusion. L'Athènes du Ve s. et la Rome de Cicéron
Rochette, Bruno ULg

in Angelli Bertinelli, Maria Gabriella (Ed.) Serta antiqua et mediaevalia VII. Il cittadino, lo straniero, Il barbaro, fra integratione ed emarginazione nell'antichità. Atti del I° Incontro internazionale di Storia Antica (2005)

Detailed reference viewed: 164 (2 ULg)
Full Text
Peer Reviewed
See detailSecondary metabolites in roots and implications for nematode resistance in banana (Musa spp.)
Wuyts, Nathalie; Lognay, Georges ULg; Sagi, Laszlo et al

in Turner, David W.; Rosales, Franklin E. (Eds.) Banana Root System: towards a better understanding for its productive management (2005)

Detailed reference viewed: 86 (2 ULg)
Full Text
Peer Reviewed
See detailConsensus algorithms for the generation of all maximal bicliques
Alexe, Gabriela; Alexe, Sorin; Crama, Yves ULg et al

in Discrete Applied Mathematics (2004), 145(1 Sp. Iss. SI), 11-21

We describe a new algorithm for generating all maximal bicliques (i.e. complete bipartite. not necessarily induced subgraphs) of a graph. The algorithm is inspired by, and is quite similar to. the ... [more ▼]

We describe a new algorithm for generating all maximal bicliques (i.e. complete bipartite. not necessarily induced subgraphs) of a graph. The algorithm is inspired by, and is quite similar to. the consensus method used in propositional logic. We show that some variants of the algorithm are totally polynomial, and even incrementally polynomial. The total complexity of the most efficient variant of the algorithms presented here is polynomial in the input size. and only linear in the output size. Computational experiments demonstrate its high efficiency on randomly generated graphs with up to 2000 vertices and 20,000 edges. (C) 2003 Elsevier B.V. All rights reserved. [less ▲]

Detailed reference viewed: 70 (6 ULg)
Full Text
Peer Reviewed
See detailCrp of Streptomyces Coelicolor Is the Third Transcription Factor of the Large Crp-Fnr Superfamily Able to Bind Camp
Derouaux, Adeline ULg; Dehareng, Dominique ULg; Lecocq, Elke et al

in Biochemical and Biophysical Research Communications (2004), 325(3), 983-90

The chromosomal inactivation of the unique transcription factor of Streptomyces coelicolor that displays a cyclic-nucleotide-binding domain, Crp(Sco), led to a germination-defective phenotype similar to ... [more ▼]

The chromosomal inactivation of the unique transcription factor of Streptomyces coelicolor that displays a cyclic-nucleotide-binding domain, Crp(Sco), led to a germination-defective phenotype similar to the mutant of the adenylate cyclase gene (cya) unable to produce cAMP. By means of cAMP affinity chromatography we demonstrate the specific cAMP-binding ability of Crp(Sco), which definitely demonstrate that a Cya/cAMP/Crp system is used to trigger germination in S. coelicolor. However, electromobility shift assays with the purified Crp(Sco)-cAMP complex and the CRP-like cis-acting element of its own promoter failed. Moreover, we were unable to complement an Escherichia coli crp mutant in trans with Crp(Sco). The fact that Vfr from Pseudomonas aeruginosa and GlxR from Corynebacterium glutamicum could complement such an E. coli mutant suggests that the way Crp(Sco) interacts with DNA should mechanistically differ from its most similar members. This hypothesis was further supported by homology modelling of Crp(Sco) that confirmed an unusual organisation of the DNA-binding domain compared to the situation observed in Crp(Eco). [less ▲]

Detailed reference viewed: 100 (17 ULg)
Full Text
Peer Reviewed
See detailHypogonadism in a Patient with a Mutation in the Luteinizing Hormone Beta-Subunit Gene
Valdes Socin, Hernan Gonzalo ULg; Salvi, R.; Daly, Adrian ULg et al

in New England Journal of Medicine [=NEJM] (2004), 351(25), 2619-2625

A 30-year-old man who presented with delayed puberty and infertility was found to have hypogonadism associated with an absence of circulating luteinizing hormone. The patient had a homozygous missense ... [more ▼]

A 30-year-old man who presented with delayed puberty and infertility was found to have hypogonadism associated with an absence of circulating luteinizing hormone. The patient had a homozygous missense mutation in the gene that encodes the beta subunit of luteinizing hormone (Gly36Asp), a mutation that disrupted a vital cystine knot motif and abrogated the heterodimerization and secretion of luteinizing hormone. Treatment with human chorionic gonadotropin increased circulating testosterone, promoted virilization, and was associated with the appearance of normal spermatozoa in low concentrations. This case illustrates the important physiological role that luteinizing hormone plays in male sexual maturation and fertility. [less ▲]

Detailed reference viewed: 27 (6 ULg)
Full Text
Peer Reviewed
See detailMise en évidence de la faille de Marenne sur la carte géologique Aye - Marche-en-Famenne
Coen-Aubert, Marie; Barchy, Laurent ULg; Marion, Jean-Marc ULg et al

in Bulletin de l'Institut royal des Sciences naturelles de Belgique, Sciences de la Terre (2004), 74(supplement), 59-7118

The revision of the geological map Aye - Marche-en-Famenne (Belgium, Wallonia, Hotton) has emphasized an important deformation structure named the Marenne Fault. This fault is clearly visible at the ... [more ▼]

The revision of the geological map Aye - Marche-en-Famenne (Belgium, Wallonia, Hotton) has emphasized an important deformation structure named the Marenne Fault. This fault is clearly visible at the southeastern face of the Marenne quarry. The dating by rugose corals has allowed to define with precision the Givetian lithologic units that have been put in contact by this normal faul with a later, right-lateral strike-slip component. This fault, that may be traced over a few kilometers to the East, is probably late Hercynian, of the same type and origin as the Lamsoul Fault know to the South of Marche-en-Famenne. It seems to form part of a family of faults which are regularly observed on the south side of the Dinant Synclinorium. [less ▲]

Detailed reference viewed: 132 (14 ULg)
Full Text
Peer Reviewed
See detailCurrent levels of drug resistance among therapy-naive HIV-infected patients have significant impact on treatment response
Derdelinckx, Inge; Van Laethem, Kristel; Maes, Bart et al

in Journal of Acquired Immune Deficiency Syndromes [=JAIDS] (2004), 37(5), 1664-1666

Detailed reference viewed: 11 (3 ULg)
Full Text
Peer Reviewed
See detailA period and a prediction for the Of ? p spectrum alternator HD 191612
Walborn, Nolan R.; Howarth, Ian D.; Rauw, Grégor ULg et al

in Astrophysical Journal (2004), 617(1, Part 2), 61-64

The observational picture of the enigmatic O-type spectrum variable HD 191612 has been sharpened substantially. A symmetrical, low-amplitude light curve with a period near 540 days has recently been ... [more ▼]

The observational picture of the enigmatic O-type spectrum variable HD 191612 has been sharpened substantially. A symmetrical, low-amplitude light curve with a period near 540 days has recently been reported from Hipparcos photometry. This period satisfies all of the spectroscopy since at least 1982, including extensive new observations during 2003 and 2004, and it has predicted the next transition during 2004 September - October. Measurements of the Ha equivalent width reveal a sharp emission peak in the phase diagram, in contrast to the apparently sinusoidal light curve. The He II absorption-line strength is essentially constant, while He I varies strongly, possibly filled in by emission in the O6 state, thus producing the apparent spectral type variations. The O8 state appears to be the "normal" one. Two intermediate O7 observations have been obtained, which fall at the expected phases, but these are the only modern observations of the transitions so far. The period is too long for rotation or pulsation; although there is no direct evidence as yet for a companion, a model in which tidally induced oscillations drive an enhanced wind near periastron of an eccentric orbit appears promising. Further observations during the now predictable transitions may provide a critical test. Ultraviolet and X-ray observations during both states will likely also prove illuminating. [less ▲]

Detailed reference viewed: 14 (4 ULg)
Full Text
See detailBobine et Chevillette
Claisse, Frédéric ULg

Article for general public (2004)

Detailed reference viewed: 16 (4 ULg)
Full Text
See detailAn Ecology of Knowledges and Practices : The Salamanca Island Project (Colombia)
Melard, François ULg

Conference (2004, December 03)

Detailed reference viewed: 16 (0 ULg)
Full Text
See detail(WO/2004/104211) METHOD FOR DETECTING TOXIC AND NON-TOXIC CYANOBACTERIA
SIVONEN, Kaarina; RANTALA, Anne; Rouhianen, Leo et al

Patent (2004)

This invention is related to a method for detecting toxic and non-toxic cyanobacteria. The method comprises that nucleic acid from a biological sample is brought into contact with an oligonucleotide ... [more ▼]

This invention is related to a method for detecting toxic and non-toxic cyanobacteria. The method comprises that nucleic acid from a biological sample is brought into contact with an oligonucleotide designed to be specific for particular regions of the mcyE gene, the mcyE in combination with mcyD, and with an oligonucleotide designed to be specific for 16SrDNA, and the presence or absence of toxic cyanobacteria is detected by a suitable molecular biology method. The invention is related also to oligonucleotides used in the method. [less ▲]

Detailed reference viewed: 65 (7 ULg)
Full Text
Peer Reviewed
See detailKinetic and structural optimization to catalysis at low temperatures in a psychrophilic cellulase from the Antarctic bacterium Pseudoalteromonas haloplanktis
Garsoux, G.; Lamotte, J.; Gerday, Charles ULg et al

in Biochemical Journal (2004), 384(Pt 2), 247-253

The cold-adapted cellulase CelG has been purified from the culture supernatant of the Antarctic bacterium Pseudoalteromonas haloplanktis and the gene coding for this enzyme has been cloned, sequenced and ... [more ▼]

The cold-adapted cellulase CelG has been purified from the culture supernatant of the Antarctic bacterium Pseudoalteromonas haloplanktis and the gene coding for this enzyme has been cloned, sequenced and expressed in Escherichia coli. This cellulase is composed of three structurally and functionally distinct regions: an N-terminal catalytic domain belonging to glycosidase family 5 and a C-terminal cellulose-binding domain belonging to carbohydrate-binding module family 5. The linker of 107 residues connecting both domains is one of the longest found in cellulases, and optimizes substrate accessibility to the catalytic domain by drastically increasing the Surface of cellulose available to a bound enzyme molecule. The psychrophilic enzyme is closely related to the cellulase Cel5 from Erwinia chrysanthemi. Both k(cat) and k(cat)/K-m values at 4 degreesC for the psychrophilic cellulase are similar to the values for Cel5 at 30-35 degreesC, suggesting temperature adaptation of the kinetic parameters. The thermodynamic parameters of activation of CelG suggest a heat-labile, relatively disordered active site with low substrate affinity, in agreement with the experimental data. The structure of CelG has been constructed by homology modelling with a molecule of cellotetraose docked into the active site. No structural alteration related to cold-activity can be found in the catalytic cleft, whereas several structural factors in the overall structure can explain the weak thermal stability, suggesting that the loss of stability provides the required active-site mobility at low temperatures. [less ▲]

Detailed reference viewed: 11 (0 ULg)
Full Text
See detailA search for radial magnetic field gradients in Ap atmospheres
Nesvacil, N.; Hubrig, S.; Jehin, Emmanuel ULg et al

in Zverko, J. (Ed.) The A-Star Puzzle (2004, December 01)

For the first time the possible presence of radial gradients of magnetic fields in the atmospheres of three magnetic Ap stars has been critically examined by measurements of the mean magnetic field ... [more ▼]

For the first time the possible presence of radial gradients of magnetic fields in the atmospheres of three magnetic Ap stars has been critically examined by measurements of the mean magnetic field modulus from spectral lines resolved into magnetically split components lying on the different sides of the Balmer jump. A number of useful diagnostic lines below and above the Balmer discontinuity, only slightly affected by blends, with simple doublet and triplet Zeeman pattern have been identified from the comparison between synthetic spectra computed with the SYNTHMAG code and the high resolution and S/N spectra obtained in unpolarized light with the ESO-VLT UVES spectrograph. For all three stars of our sample, HD 965, HD 116114 and 33 Lib (HD 137949), an increase of the magnetic field strength of the order of a few hundred Gauss has been detected bluewards of the Balmer discontinuity. These results should be taken into account in future modelling of the geometric structure of Ap star magnetic fields and the determination of the chemical abundances in Ap stars with strong magnetic fields. [less ▲]

Detailed reference viewed: 2 (1 ULg)