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See detailThe many faces of alpha-herpesviridae infections.
Nikkels, Arjen ULg; Pierard, Gérald ULg

in American Journal of Dermatopathology (2007), 29(1), 109-11

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See detailMany transcription factors interact synergistically with steroid receptors.
Schule, Roland; Muller, Marc ULg; Kaltschmidt, Christian et al

in Science (1988), 242(4884), 1418-20

Progesterone (PRE) or glucocorticoid receptor (GRE) DNA binding sites are often found clustered with binding sites for other transcription factors. Individual protein binding sites were tested without the ... [more ▼]

Progesterone (PRE) or glucocorticoid receptor (GRE) DNA binding sites are often found clustered with binding sites for other transcription factors. Individual protein binding sites were tested without the influence of adjacent factors by analyzing isolated combinations of several transcription factor binding sites with PREs or GREs. All show strong synergistic effects on steroid induction. The degree of synergism is inversely related to the strength of the GRE. Thus, a steroid responsive unit can be composed of several modules that, if positioned correctly, act synergistically. [less ▲]

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See detailMany Voices, One BBC World Service? The 2008 US Elections, Gatekeeping and Trans-Editing
Cheesman, Tom; Nohl, Arnd-Michael; BBC WS US Elections Study Group et al

in Journalism (2011), 12(2), 217-233

This article concerns the trans-editing (simultaneous translation and editing) of coverage of the 2008 US presidential elections on BBC World Service websites. We investigate how English-language source ... [more ▼]

This article concerns the trans-editing (simultaneous translation and editing) of coverage of the 2008 US presidential elections on BBC World Service websites. We investigate how English-language source texts were reworked in Arabic, Persian, Tamil, and Turkish, with a detailed analysis of the structuring, content, and rhetoric of a sample text in English and in these other languages. This analysis shows that, while the BBC’s corporate aim is to provide a univocal service across its multilingual output, this aim is in tension with widely differing journalistic norms, and differing assumptions about audience knowledge and needs, in each of the World Service’s language departments. The ‘melody’ remains essentially the same, but it is orchestrated differently by each department. [less ▲]

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See detailMap and determinants of woodlands visiting in Wallonia
Colson, Vincent ULg; Garcia, S.; Rondeux, Jacques ULg et al

in Urban Forestry and Urban Greening (2009)

The Walloon forest taken as a whole can be regarded as typical of a rural area, although its proximity to densely populated areas gives it a peri-urban character. It is visited by the local population as ... [more ▼]

The Walloon forest taken as a whole can be regarded as typical of a rural area, although its proximity to densely populated areas gives it a peri-urban character. It is visited by the local population as well as by tourists (including from neighboring countries). To provide spatial information on the level of Wallonia woodland visitation, a survey was conducted among managers of Forest Service districts (also called ‘‘cantonnements’’). The aim was to map the woodlands to show spatial patterns of visitation levels, and analyze them qualitatively to determine the influence factors. This map identifies regional hubs of recreation woodlands and, conversely, areas where the recreational function is much less important. The level of visitation was scaled in four levels ranging from low to very high. The mapping was supplemented with a statistical analysis of data collected from the forest managers and also from different GIS-layers (slope, hydrology, land use, etc.). An equation using the level of visitation as a dependent variable was fitted to a set of characteristics of the woodland with an ordered Logit model. The results show that type of ownership, type of forest, and recreational facilities significantly influence the level of woodland visitation. They also show that woodland visitors prefer any type of forest to mainly coniferous woodland. These results and the analysis of the map are particularly useful for developing forest policy and tourism as well as managing the forest. [less ▲]

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See detailMap of agricultural regions of Belgium : Landuse Mars Project 1992
Binard, Marc ULg; Donnay, Jean-Paul ULg; Muller, Fabrice

in Bernard, A. C.; Meyer-Roux, J. (Eds.) Proceedings of the Conference on The Mars Project : Overview and Perspectives (1994)

In the context of the MARS Project of the Commission of the European Community, an agricultural inventory was carried out in Belgium which became the first North-European country to be covered by a ... [more ▼]

In the context of the MARS Project of the Commission of the European Community, an agricultural inventory was carried out in Belgium which became the first North-European country to be covered by a complete survey in this program. Besides the statistical figures relative to crop acreage estimation issued from this survey, a regular satellite map of the land uses was published at the scale of 1: 400 000. The Laboratory of Remote Sensing and Forest Management of the University of Gent was entrusted with the task of doing agricultural estimation while the SURFACES Laboratory of the University of Liège was put in charge of the geometrical and mapping procedures. [less ▲]

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See detailA map of performance related genes in the horse.
Durkin, Keith ULg; Raudsepp, T; Skow, L.C. et al

Poster (2006, January)

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See detailMap of the precipitated electron mean energy in the Jovian aurora
Grodent, Denis ULg; Bouchoms, R.; Gérard, Jean-Claude ULg et al

Conference (2002, June 17)

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See detailMapk Pathway Contributes To Density- And Hypoxia-Induced Expression Of The Tumor-Associated Carbonic Anhydrase Ix
Kopacek, J.; Barathova, M.; Dequiedt, Franck ULg et al

in Biochimica et Biophysica Acta-Gene Structure and Expression (2005), 1729(1),

Transcription of the CA9 gene coding for a tumor-associated carbonic anhydrase IX (CA IX) isoform is regulated by hypoxia via the hypoxia-inducible factor 1 (HIF-1) and by high cell density via the ... [more ▼]

Transcription of the CA9 gene coding for a tumor-associated carbonic anhydrase IX (CA IX) isoform is regulated by hypoxia via the hypoxia-inducible factor 1 (HIF-1) and by high cell density via the phosphatidylinositol-3-kinase (PI3K) pathway. We examined the role of the mitogen-activated protein kinase (MAPK) pathway in the control of CA9 gene expression. Inhibition of MAPK signaling by U0126 in HeLa cells led to reduced activity of the PR1-HRE-luc CA9 promoter construct and decreased CA IX protein levels in dense culture as well as in hypoxia. Similar reduction was obtained by expression of a dominant-negative ERK1 mutant and was also observed in U0126-treated HIF-1alpha-deficient Ka13 cells. Simultaneous treatment with the MAPK and PI3K inhibitors U0126 and LY 294002 had stronger effect than individual inhibition of these pathways. Taken together, our results suggest that besides the PI3K pathway, the MAPK cascade is involved in the regulation of CA9 gene expression under both hypoxia and high cell density. [less ▲]

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See detailMapped fields of surface geostrophic currents based on altimetry, and fields of sea surface winds, cloud-free sea surface temperature and chlorophyll concentration using monovariate OI and a multivariate EOF technique
Alvera Azcarate, Aïda ULg; Barth, Alexander ULg; Helber, R. W. et al

Conference (2006)

There is an increasing demand for regional oceanic models capable of simulating the regional ocean circulation. Accurate surface forcing functions are necessary to achieve this goal. Here we present ... [more ▼]

There is an increasing demand for regional oceanic models capable of simulating the regional ocean circulation. Accurate surface forcing functions are necessary to achieve this goal. Here we present analyses of several data sets covering the contiguous eastern Gulf of Mexico and southeast Atlantic: a) Wind fields resulting from the blending by optimal interpolation (OI) of NCEP, in situ and QuikSCAT winds. These winds show improvements in the coastal region, where orography and coastal boundary layer effects are important and under-resolved. b) Cloud-free SST, created by merging several SST sources using OI. c) Cloud-free chlorophyll, also created using OI. d) Surface drifter trajectories, generated from geostrophic currents and used to track water masses, with application to the Mississippi River outflow subsequent to Hurricane Katrina. e) Multivariate cloud-free products, using SST and chlorophyll, and SST and QuikSCAT winds, to obtain more accurate reconstructions than the monovariate equivalents. We use an EOF-based method, called DINEOF, which has proven to give similar results to OI-based reconstruction but up to 30 times faster, making it very suitable for operational applications. These data sets, originally created for the West Florida Shelf, have been expanded for the Southeast Atlantic Coastal Ocean Observing System (SEACOOS) and for broader environmental applications. [less ▲]

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See detailMapping Adhesion Properties on Polymer Surfaces at the Nanoscale: Atomic Force Microscopy with Chemically Modified Probes
Duwez, Anne-Sophie ULg

in Schindel-Bidinelli, E. D. (Ed.) Structural Design and Engineering around Adhesive Bonding (2002)

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See detailMapping Aging Effects on Polymer Surfaces : Specific Detection of Additives by Chemical Force Microscopy
Duwez, Anne-Sophie ULg; Nysten, Bernard

in Langmuir (2001), 17

We report in this contribution the successful application of chemical force microscopy to study aging of polymer surfaces at the submicroscopic scale. Adhesion force mapping using tips modified with ... [more ▼]

We report in this contribution the successful application of chemical force microscopy to study aging of polymer surfaces at the submicroscopic scale. Adhesion force mapping using tips modified with methyland hydroxyl-terminated alkanethiols was used to probe the chemical composition of polypropylene surfaces as a function of aging time. We have measured adhesion force distributions on polypropylene melt-pressed films stabilized with antioxidants, process-stabilizing agents, and UV-light stabilizers. These adhesion force distributions were correlated with the additive distribution at the surface. We were able to evidence modifications of the local adhesion properties on the polymer surface due to material aging. These results support the conclusion that the UV-light stabilizer migrates toward the surface and forms a film that makes the surface less hydrophobic. Laterally resolved adhesion force maps show chemically heterogeneous surfaces on a sub-100 nm scale [less ▲]

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See detailMapping and monitoring issues of a forest soil network in Southern Belgium.
Colinet, Gilles ULg; Weissen, Frantz; Lecomte, Hugues et al

in Gilkes, R. J.; Prakongkep, N. (Eds.) Proceedings of the 19th World Congress of Soil Science; Soil solutions for a changing world : Brisbane Australia 1-6 August 2010 (2010, August)

Soil monitoring has become a rising concern during last decade in Europe. A Forest Soil Survey (FSS) is being implemented in Southern Belgium as a component of a forest observation and monitoring ... [more ▼]

Soil monitoring has become a rising concern during last decade in Europe. A Forest Soil Survey (FSS) is being implemented in Southern Belgium as a component of a forest observation and monitoring programme. An analysis of the monitoring network has been performed at mid-term of the first investigation stage in order to assess current soil conditions and the temporal evolution that can be detected in the future. The fertility status and the determinism of major and trace elements in forest soils have been investigated at regional scale through uni- and multivariate statistical analyses of the 410 soil samples of the network. A performance analysis of the network has been realized regardings the capacity to detect evolution of soil parameters. The first results show a moderate to strong variability according to the variable considered. High levels of variability were attributed to the presence of carbonated parent material in a distribution largely dominated by detritic terrigeneous rocks. The total contents in forest soils are mainly driven by pedo-geochemical background. The FSS allowed detailed mapping because there are clear convergences between spatial distributions of most of the elements and lithology or small natural regions. The levels of minimum detectable differences (MDD) that can be expected seem only compatible with the monitoring of soil acidification and changes in carbon stocks on the long-term. Future prospects should focus on the improvement of the MDD assessment. [less ▲]

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See detailMapping and polymorphism of bovine ghreline gene
Colinet, Frédéric ULg; Eggen, André; Gengler, Nicolas ULg et al

in Proceedings of the 30th International Conference on Animal Genetics ISAG 2006 - Biodiversity, the future pass through preservation (2006, August)

Bovine ghrelin, a 27-amino-acid peptide has been identified in bovine oxyntic glands of the abomasum. It is an endogenous growth hormone secretagogue. Total mRNA was extracted from abomasum and complete ... [more ▼]

Bovine ghrelin, a 27-amino-acid peptide has been identified in bovine oxyntic glands of the abomasum. It is an endogenous growth hormone secretagogue. Total mRNA was extracted from abomasum and complete ghrelin mRNA was sequenced by rapid amplification of cDNA ends. The gene contains five exons and four introns with a short noncoding first exon of 17 bp similar to mouse and human ghrelin gene. Using a radiation hybrid panel, the gene was mapped to chromosome 22 near microsatellite markers UWCA49, BM4102, BMS1932, BM2613 and URB035 with good LOD Score. Some studies detected different QTLs near these markers like for milk fat percent, milk protein percent and somatic cell score. So, it would be interesting to study the polymorphism on the bovine ghrelin gene. Screening for polymorphisms in the five exons and the introns II and IV on ten Belgian Blue bulls, ten Holsteins bulls and ten Limousin bulls revealed a total of three single nucleotide polymorphisms. In order to evaluate if ghrelin could be involved in genetic variation for milk fat percent, milk protein percent and somatic cell score an association study between SNPs on ghrelin gene and these traits could be performed in a major cattle population. [less ▲]

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See detailMapping and polymorphism of bovine ghreline gene
Colinet, Frédéric ULg; Eggen, André; Halleux, Caroline et al

Poster (2006, August)

Bovine ghrelin, a 27-amino-acid peptide has been identified in bovine oxyntic glands of the abomasum. It is an endogenous growth hormone secretagogue. Total mRNA was extracted from abomasum and complete ... [more ▼]

Bovine ghrelin, a 27-amino-acid peptide has been identified in bovine oxyntic glands of the abomasum. It is an endogenous growth hormone secretagogue. Total mRNA was extracted from abomasum and complete ghrelin mRNA was sequenced by rapid amplification of cDNA ends. The gene contains five exons and four introns with a short noncoding first exon of 17 bp similar to mouse and human ghrelin gene. Using a radiation hybrid panel, the gene was mapped to chromosome 22 near microsatellite markers UWCA49, BM4102, BMS1932, BM2613 and URB035 with good LOD Score. Some studies detected different QTLs near these markers like for milk fat percent, milk protein percent and somatic cell score. So, it would be interesting to study the polymorphism on the bovine ghrelin gene. Screening for polymorphisms in the five exons and the introns II and IV on ten Belgian Blue bulls, ten Holsteins bulls and ten Limousin bulls revealed a total of three single nucleotide polymorphisms. In order to evaluate if ghrelin could be involved in genetic variation for milk fat percent, milk protein percent and somatic cell score an association study between SNPs on ghrelin gene and these traits could be performed in a major cattle population. [less ▲]

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See detailMapping Athletic Performance Related Genes in the Equine Genome and a Genome Scan for Superior Athletic Performance in the Thoroughbred
Durkin, Keith ULg

Doctoral thesis (2009)

The primary goal of the Thoroughbred industry is to breed and train superior equine athletes capable of excelling on the racetrack. To date, research into the genetic underpinnings of athletic ability has ... [more ▼]

The primary goal of the Thoroughbred industry is to breed and train superior equine athletes capable of excelling on the racetrack. To date, research into the genetic underpinnings of athletic ability has been limited in the horse. Advances in equine genomics and the genetics of athletic performance in humans have opened up the possibility of investigating this important trait in the Thoroughbred. Initially, 46 candidate genes associated with human athletic performance were mapped in the equine genome by radiation hybrid (RH) and fluorescent in situ hybridization (FISH) mapping. RH data and later the draft equine genomic sequence allowed us to identify microsatellites adjacent to these and other candidate genes (95 in total). Additional microsatellites were added to increase genome coverage, producing a final panel of 186 markers. All the potential markers were initially screened on a pool of DNA for 16 Thoroughbreds to ensure they were polymorphic. The panel was genotyped on 162 Thoroughbreds in total; Centimorgans (cM) between microsatellites were determined with CRI-MAP. The animal’s athletic ability was estimated using career winnings loge transformed to create a linear trait; unraced animals were treated as missing data. Linkage analysis was carried out using the MERLIN program, and association analysis was carried out using the QTDT program. Appropriate thresholds for statistical significance were determined by carrying out 1000 simulated genome scans based on the structure of the original data. LOD scores above 1.54 met the criteria of statistical significance (with a 5% chance of type I error). In the actual genome scan, the marker L12.2 had the highest observed LOD score of 1.16 and p-value of 0.01 and consequently was not significant; the association analysis also did not detect significant association with performance on the track. Given the complexity of the phenotype under investigation and the modest sample size, the lack of linkage/association was not unexpected. Nevertheless, this study has contributed to the RH and FISH maps of the equine genome. Additionally, the development of the genome scanning panel for this study has provided useful information on the most informative microsatellites for linkage or association studies in the Thoroughbred. [less ▲]

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See detailMapping baseline soil content in pollutants in urbanized and industrialized areas in the Walloon region: development of a sampling methodology for the Pollusol 2 survey (SPAQuE)
Peirera, Benoit; Schneider, Arnaud; Titeux, Hugues et al

Conference (2009, December 02)

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See detailMapping Diasporic Subjectivities
Munos, Delphine ULg; Pandurang, Mala

in South Asian Diaspora (2014), 6(1),

The last two decades have witnessed a growing interest in theorizing literary narratives that address the South Asian diasporic experience. By and large, however, what has emerged is an academic consensus ... [more ▼]

The last two decades have witnessed a growing interest in theorizing literary narratives that address the South Asian diasporic experience. By and large, however, what has emerged is an academic consensus which accords an ever-greater visibility to mainstream diasporic voices from North America, U.K., some parts of Africa and of the Caribbean, at the expense of narratives dealing with South Asian diasporic communities that are based in other locations. Also, such critical consensus valorizes certain class-streamed patterns of migration over others, with the result of homogenizing the diversity of today’s South Asian diaspora. This special issue explores literary representations of the migrant experiences of those underrepresented South Asian communities based in locations such as South America, East Europe, the Gulf, West Africa and East Asia. [less ▲]

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See detailMapping error due to image geometric correction.
Hallot, Eric ULg; Cornet, Yves ULg; Hallot, Pierre ULg

Poster (2012, April)

Nowadays, image processing and GIS tools are more accessible and available to all. Most of diachronical or historical studies use the image geometric correction with several documents like old maps, plans ... [more ▼]

Nowadays, image processing and GIS tools are more accessible and available to all. Most of diachronical or historical studies use the image geometric correction with several documents like old maps, plans or aerial photographs. They are usually based on low-order polynomial equation to perfom these kinds of simplistic uses. Most of commercial softwares provide us a total or by ground control points RMSE but they don’t offer a overview of the spatial error distribution. More this does not guarantee that its significance for the other points of the image. Do not consider these errors can lead to erroneous observations and misinterpretations like historical moving streams or bank erosion rate. Using a least square adjustment (LSA), allow to recalculate the transformation equation from the pairs of control points coordinates. Assuming that residuals are spatially auto-correlated, we can build error vectors whose direction and magnitude symbolize the error at each point of the image. By another way, LSA manage the precision during transformation process by using a stochastic model in addition of the mathematical model during the transformation. This gives us variance on parameters of the transformation. Knowing the precision of all elements and variance/covariance matrix on transformation parameters, we apply variance propagation on the model. As an output, we obtain confidence ellipses on each transformed points, thus a spatial distribution of error for the entire image. Moreover, this leads us to determine statistically if observed movement are significant or not. The represent error is a complex problem that cannot be solved with a quick fix. In this work, we present an interesting example of using well-known topographic methods to solve image processing problems. [less ▲]

Detailed reference viewed: 27 (9 ULg)