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See detailMethanotrophy within the water column of a large meromictic tropical lake (Lake Kivu, East Africa)
Morana, C.; Borges, Alberto ULg; Roland, Fleur ULg et al

in Biogeosciences (2015), 12(7), 2077-2088

Detailed reference viewed: 25 (5 ULg)
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See detailMethionine-derived Schiff base as selective fluorescent “turn-on”chemosensor for Zn2+in aqueous medium and its application in livingcells imaging
Faiz-Ur-Rahman; Ali, Amjad ULg; Rong Guo et al

in Sensors and Actuators B: Chemical (2015)

tWe describe the quantitative synthesis of a Schiff base derived from methionine and salicylaldehyde(SMSB) which displayed turn-on selective fluorescent chemo-sensing properties for Zn2+in bufferedCH3CN ... [more ▼]

tWe describe the quantitative synthesis of a Schiff base derived from methionine and salicylaldehyde(SMSB) which displayed turn-on selective fluorescent chemo-sensing properties for Zn2+in bufferedCH3CN/H2O (1:1) solution. In physiological pH (7.2 buffered) SMSB exhibited high selectivity and sen-sitivity toward Zn2+over the other selected metal ions. Upon the addition of Zn2+33 folds of emissionenhancement was observed in SMSB and limit of detection (CL) for Zn2+was found to be 5.0 × 10−7M. Thisbinding phenomenon was studied by1H NMR and HR-MS analysis. Mass spectrometry analysis revealedthat SMSB interacts with Zn2+and form a 1:1 complex, also confirmed by Job’s plot. This probe wascompletely retrieved by adding EDTANa2solution, exhibited a fluorescent quenching effect by removingZn2+from the sensor. SMSB was observed to have a good tolerance for fluorescence detection of Zn2+in pH range 6–10. Furthermore it is successfully investigated for living cells imaging using MCF-7 cells.Combine experimental results indicated SMSB to be a useful and powerful chemosensing probe for Zn2+in water as well as in living cells. [less ▲]

Detailed reference viewed: 24 (0 ULg)
See detailMethIS I : Réalité et Représentation
Cormann, Grégory ULg; Dozo, Björn-Olav ULg; Letawe, Céline ULg

Book published by Editions de l’Université de Liège (2008)

Detailed reference viewed: 52 (22 ULg)
See detailMethIS V. La valeur de la science. Pourquoi évaluer la recherche
Cormann, Grégory ULg; Dozo, Björn-Olav ULg; Polis, Stéphane ULg

Book published by Presses universitaires de Liège (in press)

Actes du colloque du 10 et 11 décembre 2009 qui s'est tenu à Liège à l'initiative du personnel scientifique

Detailed reference viewed: 89 (23 ULg)
See detailMETHis VI. Images fixes / Images en mouvement
Bert, Mathilde ULg; Falque, Ingrid ULg; Hagelstein, Maud ULg

Book published by Presses Universitaires de Liège (2016)

Dans le domaine de la théorie de l’image (que celle-ci soit matérielle, imagi- naire, animée, littéraire, onirique, etc.), la réflexion actuelle porte fréquemment sur les liens de l’image au mouvement. Et ... [more ▼]

Dans le domaine de la théorie de l’image (que celle-ci soit matérielle, imagi- naire, animée, littéraire, onirique, etc.), la réflexion actuelle porte fréquemment sur les liens de l’image au mouvement. Et pour cause, ce lien s’avère essentiel : comme le montraient déjà les expérimentations chronophotographiques du pionnier de la photographie Etienne-Jules Marey, l’image – pourtant caractérisée par sa fixité – nourrit depuis toujours un rapport constant avec l’idée de mouvement. D’ailleurs, à observer les travaux récents des chercheurs concer- nés par le visuel, quand l’image fixe – picturale ou photographique – s’envisage désormais depuis le point de vue de la Dynamis, l’image animée est de plus en plus régulièrement valorisée dans sa fixité. Le plan peut ainsi par exemple être isolé du flux cinématographique, lorsque l’on interroge sa valeur d’exposition, ou lorsqu’il est érigé en image emblématique : le cinéaste Stanley Kubrick parlait à propos de telles images d’« unités insubmersibles » (non-submersible units) et exigeait d’un grand film qu’il en comprenne au moins six. L’image fixe serait fondamentalement liée à la perception d’une énergétique, quand l’image animée serait dépendante de la possibilité d’être immobilisée. Loin d’être paradoxal, ce constat définit à nos yeux la nature dialectique de l’image. Sans vouloir attribuer définitivement à cette dernière le caractère « fixe » ou « mouvant », il importera dans les textes rassemblés ici de proposer un modèle nuancé, capable de décrire concrètement la rythmique inhérente aux objets du champ visuel. Depuis les domaines de recherche variés qui nous occupent, et en repartant des cas concrets et particuliers qui attisent notre curiosité, on essaiera d’apporter notre contribution à une science culturelle transdisciplinaire, convaincus que seule une vision transversale des médias permettra de saisir l’image dans sa complexité. [less ▲]

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See detailMethIS, 2 : Pratiques du document
Letawe, Céline ULg; Polis, Stéphane ULg; Stasse, Bauduin ULg et al

Book published by CEFAL/Editions de l'ULg (2009)

Detailed reference viewed: 63 (30 ULg)
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See detailA method allowing long term culture and expansion of chicken primordial germ cells
Tonus, Céline ULg; Waroux, Olivier ULg; Grobet, Luc ULg

Conference (2013, March 12)

We developed an original method allowing long term culture (up to 20 month) of undifferentiated chicken PGCs, with good proliferation rates. We use a co-culture system: PGCs are cultivated in cell culture ... [more ▼]

We developed an original method allowing long term culture (up to 20 month) of undifferentiated chicken PGCs, with good proliferation rates. We use a co-culture system: PGCs are cultivated in cell culture inserts, in the presence of irradiated Buffalo Rat Liver cells. According to our own experience, physical separation of PGCs and feeder cells limits the differentiation of PGCs. Our PGCs lines keep their original phenotype including their gonadal colonization ability. We also developed a novel cryopreservation method based on vitrification, in complement of a slow rate freezing. [less ▲]

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See detailA method and an apparatus for separating a first amount of liquid
Vandewalle, Nicolas ULg; Gilet, Tristan; Jérôme, Christine ULg et al

Patent (2010)

The invention relates to a method for separating a first amount of liquid into a plurality of second amounts of liquid, the method comprising the steps of bringing the first amount of liquid (210) into ... [more ▼]

The invention relates to a method for separating a first amount of liquid into a plurality of second amounts of liquid, the method comprising the steps of bringing the first amount of liquid (210) into contact with at least one first fibre (110) being arranged substantially vertical, allowing the first amount of liquid to drain of the first fibre, thereby forming a coating film on the fibre, allowing the coating film to decompose, thereby forming a plurality of second amounts of liquid (220), and allowing the second amounts of liquid to drain of the first fibre and being captured at a crossing point (130) being constituted by the first fibre and at least one second fibre (120) being arranged substantially perpendicular to the first fibre and touching the first fibre. Furthermore, the invention relates to an apparatus for separating a first amount of liquid into a plurality of second amounts of liquid. [less ▲]

Detailed reference viewed: 34 (16 ULg)
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See detailMethod and device for synthesizing labeled compounds
Lemaire, Christian ULg; Damhaut, Philippe; Monclus, Michel et al

Patent (1997)

A method for synthesizing compds. labeled with any isotopic element is disclosed. The method comprises the steps of prepg. the labeling agent, labeling a precursor in the form of a protected substrate ... [more ▼]

A method for synthesizing compds. labeled with any isotopic element is disclosed. The method comprises the steps of prepg. the labeling agent, labeling a precursor in the form of a protected substrate, pre-​purifying and deprotecting same, and forming a final soln. of the resulting compd. The deprotection step, in which the labeled precursor is converted into a labeled compd., is performed directly on a solid medium in a column or a cartridge. A device for synthesizing the labeled compd. according to said method is also disclosed. Thus, 2-​[18F]​fluoro-​2-​deoxy-​D-​glucose and 1,​3,​4,​6-​tetra-​O-​acetyl-​2-​trifluoromethanesulfonyl-​β-​D-​mannopyranose were prepd. [less ▲]

Detailed reference viewed: 18 (5 ULg)
See detailMethod and kit for the measurement of neutrophil cell activation
Serteyn, Didier ULg; Deby-Dupont, Ginette; Franck, Thierry ULg et al

Patent (2006)

The present invention is related to methods and kits (or devices) for the measurement of equine myeloperoxidase (MPO), a specific enzyme of equine neutrophils, either in total [first method], or ... [more ▼]

The present invention is related to methods and kits (or devices) for the measurement of equine myeloperoxidase (MPO), a specific enzyme of equine neutrophils, either in total [first method], or specifically in its active form [second method]. Said methods and kits (or devices), used independently or in combination, find improved applications in the veterinary field and can be adapted for application in human health care. The concept of the second method is applicable to any other enzyme. [less ▲]

Detailed reference viewed: 28 (1 ULg)
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See detailMethod and Tools for an Objective Approach of White Dwarf Asteroseismology
Charpinet, S.; Giammichele, N.; Brassard, P. et al

in Astronomical Society of the Pacific Conference Series (2015, June), 493

Stellar oscillation modes propagate deep inside stars and carry on information potentially allowing us to reconstruct, through asteroseismology, parts of their internal structure and dynamics. We present ... [more ▼]

Stellar oscillation modes propagate deep inside stars and carry on information potentially allowing us to reconstruct, through asteroseismology, parts of their internal structure and dynamics. We present and discuss here our strategy and tools developed to exploit objectively this potential for pulsating white dwarf stars. Our approach relies on a multimodal optimization technique aimed at identifying all potential seismic model solutions that best match the observed periods of a given star. This approach doesn't rely on model grids (hence avoiding their limitations) and makes use of static stellar structures of white dwarf stars as opposed to evolutionary models. The use of parameterized static models is a deliberate choice in this context and is aimed at approaching as closely as possible the real structure of the star as it is observed and probed by the detected oscillation modes without interferences from unavoidable model uncertainties propagated through billion years of evolution. We argue that this strategy is more likely to produce new tight constraints on the internal structure of white dwarf stars from which evolutionary models could be improved. [less ▲]

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See detailA method based on multiple adaptive windows to improve the determination of disparity maps
Demoulin, Cédric; Van Droogenbroeck, Marc ULg

in ProRISC/IEEE Workshop on Circuit, Systems and Signal Processing (2005, November)

The correspondence problem is one of main topics in stereo vision that, despites being studied for many years, is still in progress. In this paper, we present a new method that computes the disparity map ... [more ▼]

The correspondence problem is one of main topics in stereo vision that, despites being studied for many years, is still in progress. In this paper, we present a new method that computes the disparity map. Our method is local (i.e. only information gathered in the close neighborhood is used) and is based on image statistics. More specifically it combines multiple adaptive windows and local statistical measures in order to optimize the quality of the computation of disparity maps. As the size of windows is critical for local methods, we propose an algorithm that modifies the size of windows surrounding the pixel of interest to capture enough information in regions with low texture energy. This process is based on statistical measures (mean and horizontal/vertical average deviation) taken in the windows of the original stereo images. In the last section we show that our method performs very well compared to other existing local methods. [less ▲]

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See detailMethod developement and applications of capillary electrophoresis in drug analysis
Crommen, Jacques ULg; Bechet, I.; Paques, Ph. et al

Conference (1993)

Detailed reference viewed: 7 (1 ULg)