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See detailGalectin-3 and laminin expression in neoplastic and non-neoplastic thyroid tissue.
Fernandez, P. L.; Merino, M. J.; Gomez, M. et al

in Journal of Pathology (The) (1997), 181(1), 80-6

Galectin-3 is a 31 kD beta-galactoside-binding lectin which is expressed by several types of non-neoplastic and neoplastic cells and which may be involved in cell-extracellular matrix interactions. An ... [more ▼]

Galectin-3 is a 31 kD beta-galactoside-binding lectin which is expressed by several types of non-neoplastic and neoplastic cells and which may be involved in cell-extracellular matrix interactions. An immunohistochemical study has been made of the expression of galectin-3, as well as its ligand, laminin, in a spectrum of benign and malignant thyroid neoplasms and in some non-neoplastic conditions. Immunohistochemistry with anti-human recombinant galectin-3 antibody showed consistent, intense positivity in the neoplastic cells of 18 cases of papillary carcinoma and less intense staining in the five anaplastic carcinomas studied. In addition, two out of three poorly differentiated carcinomas, three out of six medullary carcinomas, and four out of eight follicular carcinomas had less intense or focal positivity. One case of Hurthle cell carcinoma showed scattered strongly positive cells. Eight follicular adenomas, three hyperplastic nodules, five nodular goitres, and normal thyroid tissue were negative. Galectin-3 mRNA expression was also evaluated in three of the papillary carcinomas, two follicular adenomas, and one hyperplastic nodule with matched normal tissue. Northern blot analysis demonstrated mRNA overexpression in the three cases of papillary carcinomas, whereas normal and benign tissues were negative. Laminin distribution in neoplastic and non-neoplastic tissue varied with architectural patterns but did not correlate with galectin-3 immunohistochemical expression. We conclude that expression of galectin-3 is limited to inflammatory foci in normal and benign thyroid tissue and is a phenotypic feature of malignant thyroid neoplasms, especially papillary carcinomas. [less ▲]

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See detailGalectin-3, a Laminin Binding Protein, Fails to Modulate Adhesion of Human Melanoma Cells to Laminin
van den Brule, F. A.; Buicu, C.; Sobel, M. E. et al

in Neoplasma (1995), 42(5), 215-9

Galectin-3 is a laminin binding protein which expression is altered in a variety of human carcinomas including colon, breast and endometrium. In these tumors, we consistently observed a down regulation of ... [more ▼]

Galectin-3 is a laminin binding protein which expression is altered in a variety of human carcinomas including colon, breast and endometrium. In these tumors, we consistently observed a down regulation of galectin-3 expression related to increased aggressiveness. Galectin-3 belongs to a family of galactose-binding lectins and binds laminin through its numerous poly-N-acetyllactosamine chains. To date, the exact role of galectin-3 in the complex interactions between cancer cells and laminin has not been clearly defined. Adhesion of melanoma cells to laminin is a critical event during tumor invasion and metastasis. In this study, we explore the possibility that galectin-3 could modulate attachment of two human melanoma cell lines to laminin. A2058 and A375 melanoma cell expressed galectin-3 on their surface as demonstrated by immunofluorescence, and attached to laminin in an in vitro assay. We demonstrate that neither recombinant galectin-3 nor an affinity purified antigalectin-3 antiserum altered adhesion of A2058 or A375 melanoma cells to laminin. Our data strongly suggest that galectin-3 is not a key element in adhesion of the melanoma cells to laminin. These results are not surprising in light of the observation that galectin-3 expression is down regulated in cancer and that increased adhesion to laminin is a constant feature of invasive cancer cells. [less ▲]

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See detailGalectin-9 in tumor biology: a jack of multiple trades
Heusschen, Roy ULg; Griffioen, Arjan; Thijssen, Victor

in Biochimica et Biophysica Acta - Reviews on Cancer (2013)

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See detailGalectins: a family of animal beta-galactoside-binding lectins.
Barondes, S. H.; Castronovo, Vincenzo ULg; Cooper, D. N. et al

in Cell (1994), 76(4), 597-8

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See detailGalerkin and de Rham Discretizations for Hybrid Methods
Geuzaine, Christophe ULg; Tarhasaari, T.; Kettunen, L. et al

in Proceedings of the 9th IEEE Conference on Electromagnetic Field Computation (CEFC'2000) (2000)

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See detailA Galerkin projection method for mixed finite elements
Geuzaine, Christophe ULg; Meys, B.; Dular, Patrick ULg et al

in IEEE Transactions on Magnetics (1999), 35(3), 1438--1441

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See detailA Galerkin projection method for mixed finite elements
Geuzaine, Christophe ULg; Meys, B.; Dular, Patrick ULg et al

in Proceedings of the Eighth Biennal IEEE Conference on Electromagnetic Field Computation (1998)

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See detailGalilée et la naissance de la science moderne
De Rop, Yves ULg

Article for general public (1992)

Not Available

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See detailGalileo : une boussole spatiale européenne réglée par des ingénieurs belges
Bidaine, Benoît ULg

in Journal des Ingénieurs (Le) (2009), (121), 9-11

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See detailGalileo ? Bien plus qu’un système de positionnement !
Warnant, René ULg

Conference given outside the academic context (2010)

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See detailGalileo Local Component for the detection of atmospheric threats
Warnant, René ULg; Bavier, Michaël; Brenot, Hugues et al

in Goodman, John (Ed.) Proceedings of the 12th International Ionospheric Effects Symposium (IES2008) (2008, May)

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See detailGalileo Local Component for the detection of atmospheric threats
Warnant, René ULg; Wautelet, Gilles ULg; Lejeune, Sandrine et al

Conference (2008, November)

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See detailGalileo Single Frequency Ionospheric Correction: Performances in Terms of Position
Bidaine, Benoît ULg; Lonchay, Matthieu ULg; Warnant, René ULg

in GPS Solutions (2013), 17(1), 63-73

For GPS single frequency users, the ionospheric contribution to the error budget is estimated by the well-known Klobuchar algorithm. For Galileo, it will be mitigated by a global algorithm based on the ... [more ▼]

For GPS single frequency users, the ionospheric contribution to the error budget is estimated by the well-known Klobuchar algorithm. For Galileo, it will be mitigated by a global algorithm based on the NeQuick model. This algorithm relies on the adaptation of the model to slant Total Electron Content (sTEC) measurements. Although the performance specifications of these algorithms are expressed in terms of delay and TEC, the users might be more interested in their impact on positioning. Therefore, we assessed the ability of the algorithms to improve the positioning accuracy using globally distributed permanent stations for the year 2002 marked by a high level of solar activity. We present uncorrected and corrected performances, interpret these and identify potential causes for Galileo correction discrepancies. We show vertical errors dropping by 56–64 % due to the analyzed ionospheric corrections, but horizontal errors decreasing by 27 % at most. By means of a fictitious symmetric satellite distribution, we highlight the role of TEC gradients in residual errors. We describe mechanisms permitted by the Galileo correction, which combine sTEC adaptation and topside mismodeling, and limit the horizontal accuracy. Hence, we support further investigation of potential alternative ionospheric corrections. We also provide an interesting insight into the ionospheric effects possibly experienced during the next solar maximum coinciding with Galileo Initial Operation Capability. [less ▲]

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See detailGalileo Single Frequency Ionospheric Correction: Performances in Terms of Position
Bidaine, Benoît ULg; Warnant, René ULg

in Goodman, John M. (Ed.) 2011 Ionospheric Effects Symposium Proceedings (2011, May)

The ionospheric effect remains one of the main factors limiting GNSS accuracy. For GPS single frequency users, this contribution to the error budget is estimated thanks to the well-known Klobuchar ... [more ▼]

The ionospheric effect remains one of the main factors limiting GNSS accuracy. For GPS single frequency users, this contribution to the error budget is estimated thanks to the well-known Klobuchar algorithm. For Galileo, it will be mitigated by a global algorithm based on the NeQuick model. This algorithm relies on an optimisation procedure called ingestion. In this framework, an "effective ionisation level" Az plays the role of the solar activity information provided to the model in order to fit a specific dataset. For Galileo single frequency operation, daily Az values will be computed from slant Total Electron Content (sTEC) measurements performed within the ground segment and three coefficients will be broadcast to the users within the navigation message allowing them to run the model. The performance specifications of these algorithms are respectively expressed in terms of delay and TEC but the users might find more interest in their impact on positioning. Hence we propose to investigate their performances in terms of positioning accuracy. To this extent we compare positions of permanent stations calculated with and without the ionospheric correction to the actual ones which are known at the sub-centimetre level. Our simulation uses sTEC generated from Global Ionospheric Maps to provide the effective ionization level coefficients and GPS single frequency code measurements to compute positions. We present results for Brussels station in Belgium (mid-latitudes) and for 2002 (high solar activity level). It gives an interesting insight in the situation we could observe when Galileo reaches its Initial Operation Capability, during the next solar maximum. This study constitutes a first step in the development of a real-time service in the framework of the SWANS project of the University of Liège and the Royal Meteorological Institute of Belgium. As two Galileo receivers have been bought in this context, this service will be available for the In-Orbit Validation phase of Galileo. [less ▲]

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See detailGalileo-based Collision Avoidance System
Wimmershoff, M.; Christen, Fréderic ULg

in FISITA World Automotive Congress 2010 (2010, June 01)

Nowadays, collision avoidance (CA) systems are an intensive research topic since the majority of all traffic accidents are collisions that are caused due to inattention or unadjusted driving behaviour of ... [more ▼]

Nowadays, collision avoidance (CA) systems are an intensive research topic since the majority of all traffic accidents are collisions that are caused due to inattention or unadjusted driving behaviour of the driver. In order to scan the vehicle's surrounding for potential crashes, up to date prototypic CA systems are based on on-board environmental sensors, such as camera or radar systems. The limited sensor covering area and the functionality of the used sensors under varying environmental conditions require an enormous effort to ensure a reliable detection of obstacles, and thus limit the application of the systems. In order to expand the operating field of such systems, a Galileo-based CA system will be developed within the project "GALILEO above". This advanced driver assistance system detects surrounding vehicles that are on collision course, and react autonomous, if the driver does not intervene to avoid the crash. For this purpose the system initiates an emergency stop or an emergency steering. For the development process of the CA system the Galileo test centre "automotiveGATE" in Aldenhoven, Germany will be used. Pseudolites will be installed at the automotiveGATE which provide Galileo-like navigation signals and enable the development and tuning of Galileo based vehicle systems. Thus, these systems are available on the market when the Galileo satellite system becomes operative. At the end of the project GALILEO above, first prototypes should demonstrate the potential of Galileo-based collision avoidance systems. In this paper the GALILEO above project will be introduced followed by a detailed description of the development process of the CA system. Furthermore, first results will be presented. [less ▲]

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See detailGalileo-based Collision Avoidance System
Wimmershoff, M.; Christen, Fréderic ULg

in TRA Transport Research Arena Europe 2010 (2010, June 07)

Nowadays, collision avoidance (CA) systems are an intensive research topic since the majority of all traffic accidents are collisions that are caused due to inattention or unadjusted driving behaviour of ... [more ▼]

Nowadays, collision avoidance (CA) systems are an intensive research topic since the majority of all traffic accidents are collisions that are caused due to inattention or unadjusted driving behaviour of the driver. Up to date prototypic CA systems are based on on-board environmental sensors, such as camera or radar systems, in order to scan the vehicle’s surrounding for potential crashes. The functionality of the used sensors under varying environmental conditions and the limited sensor covering area require an enormous effort to ensure a reliable detection of obstacles, and thus limit the application of the systems. In order to expand the operating field of such systems, a GALILEO-based CA system will be developed within the project GALILEO-above. This advanced driver assistance system detects surrounding vehicles that are on collision course, and react autonomous, if the driver does not intervene to avoid the crash. For this purpose the system initiates an emergency stop or an emergency steering. For the development of the CA system the GALILEO test centre “Automotive Gate” in Aldenhoven, Germany will be used. On this test area pseudolites will be installed which provide GALILEO-like navigation signals. Thus, the development respectively tuning of GALILEO based vehicle systems will be enabled, so that they are available on the market when the GALILEO satellite system becomes operative. At the end of the project GALILEO-above, first prototypes should demonstrate the potential of GALILEO-based collision avoidance systems. In this paper the GALILEO-above project will be introduced followed by a detailed description of the development process of the CA system. Furthermore, first results will be presented. [less ▲]

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See detailGallaicolichen, a new genus of foliicolous lichen with unique diaspores
Sérusiaux, Emmanuël ULg; Lücking, Robert

in Bibliotheca Lichenologica (2007), 95

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See detailGallbladder mucocele: diagnosis, treatment and outcome in 4 dogs
Carofiglio, Francesca; Bongartz, Alexandre; Busoni, Valeria ULg et al

Poster (2004, July)

Detailed reference viewed: 10 (0 ULg)
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See detailGallo-romance I: Historical and etymological lexicography
Buchi, Eva; Renders, Pascale ULg

in Gouws, Rufus H.; Heid, Ulrich; Schweickard, Wolfgang (Eds.) et al Dictionaries: An International Encyclopedia of Lexicography. Supplementary Volume: Recent Developments with Focus on Electronic and Computational Lexicography (2013)

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See detailGalloping and compact line
Lilien, Jean-Louis ULg

in Proceedings of the CIGRE Symposium on compacting overhead transmission lines (1991, May)

Galloping may alos be a problem for compact line. The paper is analysing that particular problem.

Detailed reference viewed: 10 (0 ULg)