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Peer Reviewed
See detailHeavy fermion behavior of U2T2X compounds
Havela, Ladislav; Sechovsky, Vladimir; Svoboda, P. et al

Poster (1994, August)

Detailed reference viewed: 15 (3 ULg)
Peer Reviewed
See detailHeavy fermion behavior of U2T2X compounds
Havela, Ladislav; Sechovsky, Vladimir; Svoboda, P. et al

Poster (1994, June)

Detailed reference viewed: 14 (4 ULg)
See detailHeavy meatal dynamics in the Calvi Bay seagrass bed.
Nélissen, Jean-Pierre; Gobert, Sylvie ULg; Bouquegneau, Jean-Marie ULg et al

Conference (1994, January)

Detailed reference viewed: 6 (0 ULg)
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See detailHeavy metal and endocrine disrupter impact on marine mammals
Das, Krishna ULg; Siebert, Ursula

in Cielikiewicz, Witold; Connolly, Niamh; Ollier, Gilles (Eds.) et al Proceedings of the EurOCEAN 2004. European Conference on Marine Science and Ocean Technology (2007)

Due to their top position in the trophic network, their long life span and their low rate of pollutant elimination, marine mammals can accumulate high levels of chemicals, such as organic compounds and ... [more ▼]

Due to their top position in the trophic network, their long life span and their low rate of pollutant elimination, marine mammals can accumulate high levels of chemicals, such as organic compounds and heavy metals. In the North Sea, high levels of mercury, PCBs, methyl sulfonyl PCBs, perfluorinated organochemicals, DDT and toxaphene have been found in the liver and blubber of the harbour porpoise Phocoena phocoena and the harbour seal Phoca vitulina. Such compounds may affect the immune and the endocrine systems of these species leading to e.g. an increase susceptibility to infectious diseases, cancers, reproductive and other endocrine dysfunctions. [less ▲]

Detailed reference viewed: 56 (6 ULg)
See detailHeavy metal hypersensitive mutants in Chlamydomonas reinhardtii.
Hanikenne, Marc ULg

Scientific conference (2002, December 16)

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Peer Reviewed
See detailHeavy Metals Contamination and Body Condition of Wintering Guillemots (Uria Aalge) at the Belgian Coast from 1993 to 1998
Debacker, Virginie ULg; Jauniaux, Thierry ULg; Coignoul, Freddy ULg et al

in Environmental Research (2000), A84(3), 310-317

A sample of 166 common guillemots (Uria aalge) recovered from Belgian beaches during five wintering seasons, from 1993-1994 to 1997-1998, were examined. At necropsy, postmortem examination including body ... [more ▼]

A sample of 166 common guillemots (Uria aalge) recovered from Belgian beaches during five wintering seasons, from 1993-1994 to 1997-1998, were examined. At necropsy, postmortem examination including body mass, fat reserves, presence or not of intestinal contents, eventual status of oiling, and pathological changes (cachexia, acute hemorrhagic gastroenteropathy (GEAH)) was attributed to each individual. Mild to severe cachexia, a pathology characterized by moderate to severe atrophy of the pectoral muscle as well as reduced amounts or absence of subcutaneous and/or abdominal fat, was observed for most specimens (85.8%). Heavy metal analyses (Cu, Zn, Fe, Cd, Ni, Cr, and Pb) of the tissues (typically liver, kidney, and pectoral muscle) were performed, and total lipids were determined (liver and pectoral muscle). The guillemots collected at the Belgian coast exhibited higher Cu and Zn concentrations compared to individuals collected in more preserved areas of the North Sea such as the northern colonies. A general decrease of their total body mass as well as liver, kidney, and pectoral muscle mass was associated to increasing cachexia severity. Moreover, significantly increasing heavy metal levels (Cu and Zn) in the tissues as well as depleted muscle lipid contents were observed parallel to increasing cachexia severity. On the contrary the organs' total metal burden barely correlates to this status. These observations tend to indicate a general redistribution of heavy metals within the organs as a result of prolonged starvation and protein catabolism (cachectic status). Such a redistribution could well be an additional stress to birds already experiencing stressfull conditions (starvation, oiling). [less ▲]

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See detailHeavy metals in marine mammals
Das, Krishna ULg; Debacker, Virginie ULg; Pillet, Stéphane et al

in Vos, Joseph G.; Bossart, Gregory D.; Fournier, Michel (Eds.) et al Toxicology of marine mammals (2003)

Detailed reference viewed: 65 (30 ULg)
Peer Reviewed
See detailHeavy metals, organochlorines and polycyclic aromatic hydrocarbons in sperm whales stranded in Southern North sea during the 1994/1995 winter,
Hoolsbeek, L.; Joiris, C. R.; Debacker, Virginie ULg et al

in Marine Pollution Bulletin (1999), 38

Detailed reference viewed: 40 (0 ULg)
See detailHeavy n-type doping of SiGe for SIMS calibration
Nguyen, Ngoc Duy ULg

Report (2007)

Detailed reference viewed: 6 (0 ULg)
Peer Reviewed
See detailHeavy water tracing test in the underground coal gasification process at Thulin (Belgium)
Dufaux, Anne; Gaveau, Bénédicte; Létolle, René et al

in Fuel (1990), 69

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Peer Reviewed
See detailHeavy-flavour pentaquarks in a chiral constituent quark model
Genovese, M.; Richard, J. M.; Stancu, Floarea ULg et al

in Physics Letters B (1998), B425

Within the chiral constituent quark model of Glozman and Riska, we discuss the stability of heavy pentaquarks, i.e. hadrons containing four light quarks and a heavy antiquark. The spin-dependent part of ... [more ▼]

Within the chiral constituent quark model of Glozman and Riska, we discuss the stability of heavy pentaquarks, i.e. hadrons containing four light quarks and a heavy antiquark. The spin-dependent part of the Hamiltonian is dominated by the short-range part of the Goldstone-boson-exchange interaction. We find that these systems are not bound, having an energy above the lowest dissociation threshold into a baryon and a meson. [less ▲]

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Peer Reviewed
See detailHeavy/light chain (HLC) and free light chain (FLC) analysis allow sensitive monitoring of multiple myeloma patients and AID detection of clonal changes
Dierge, Laurine; LUTTERI, Laurence ULg; Chauvet, D et al

in Biochimica Clinica (2013, May), 37(SS), 618

Detailed reference viewed: 39 (4 ULg)
See detailHedendaagse Nigeriaanse Literatuur
Tunca, Daria ULg

Conference given outside the academic context (2009)

Detailed reference viewed: 25 (4 ULg)
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Peer Reviewed
See detailHedge Fund Market Risk Exposures: A Survey
Lambert, Marie ULg

in Finance (2012), 33(1), 39-78

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Peer Reviewed
See detailHedge fund performance and persistence in bull and bear markets
Capocci, Daniel; Corhay, Albert ULg; Hübner, Georges ULg

in European Journal of Finance (2005), 11(5), 361-392

This paper tests the performance of 2894 hedge funds in a time period that encompasses unambiguously bullish and bearish trends whose pivot is commonly set at March 2000. The database proves to be fairly ... [more ▼]

This paper tests the performance of 2894 hedge funds in a time period that encompasses unambiguously bullish and bearish trends whose pivot is commonly set at March 2000. The database proves to be fairly trustable with respect to the most important biases in hedge funds studies, despite the high attrition rate of funds observed in the down market. An original ten-factor composite performance model is applied that achieves very high significance levels. The analysis of performance indicates that most hedge funds significantly outperformed the market during the whole test period, mostly thanks to the bullish subperiod. In contrast, no significant underperformance of individual hedge funds strategies is observed when markets headed south. The analysis of persistence yields very similar results, with most of the predictability being found among middle performers during the bullish period. However, the "Market Neutral" strategy represents a remarkable exception, as abnormal performance is sustained throughout and significant persistence can be found between the 20% and 69% best performers in this category, probably thanks to an extreme adaptability and a very active investment behaviour.(Abstract EconLit copié le 29/06/06) [less ▲]

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Peer Reviewed
See detailHedge fund return specification with errors-in-variables
Coën, Alain; Hübner, Georges ULg; Desfleurs, Aurélie

in Journal of Derivatives and Hedge Funds (2010), 16(1), 22-52

In linear models for hedge fund returns, errors-in-variables may significantly alter the measurement of factor loadings and the estimation of abnormal performance. The higher moment estimator (HME ... [more ▼]

In linear models for hedge fund returns, errors-in-variables may significantly alter the measurement of factor loadings and the estimation of abnormal performance. The higher moment estimator (HME) introduced by Dagenais and Dagenais (1997) effectively deals with these issues. Results on individual funds show that the HME specification does not uncover systematic performance biases, but can modify estimated alphas in most cases and identifies relative persistence for directional funds in bearish market conditions. Overall, the risk premia calculated with HME remain relatively stable when compared to ordinary least squares specifications. [less ▲]

Detailed reference viewed: 34 (3 ULg)
See detailHedge Funds: Insights in Performance Measurement, Risk Analysis, and Portfolio Allocation
Gregoriou, Greg; Hübner, Georges ULg; Papageorgiou, Nicolas et al

Book published by J. Wiley & sons (2005)

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Peer Reviewed
See detailHedgehog ringworm in humans and a dog.
Pierard-Franchimont, Claudine; Hermanns, Jean-François ULg; Collette, C. et al

in Acta Clinica Belgica (2008), 64

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Peer Reviewed
See detailHedgehog signaling pathway is inactive in colorectal cancer cell lines
Chatel, Guillaume; Ganeff, Corinne ULg; Boussif, Naima et al

in International Journal of Cancer = Journal International du Cancer (2007), 121(12), 2622-2627

The Hedgehog (Hh) signaling pathway plays an important role in human development. Abnormal activation of this pathway has been observed in several types of human cancers, such as the upper gastro ... [more ▼]

The Hedgehog (Hh) signaling pathway plays an important role in human development. Abnormal activation of this pathway has been observed in several types of human cancers, such as the upper gastro-intestinal tract cancers. However, activation of the Hh pathway in colorectal cancers is controversial. We analyzed the expression of the main key members of the Hh pathway in 7 colon cancer cell lines in order to discover whether the pathway is constitutively active in these cells. We estimated the expression of SHH, IHH, PTCH, SMO, GLI1, GLI2, GLI3, SUFU and HHIP genes by RT-PCR. Moreover, Hh ligand, Gli3 and Sufu protein levels were quantified by western blotting. None of the cell lines expressed the complete set of Hh pathway members. The ligands were absent from Colo320 and HCT116 cells, Smo from Colo205, HT29 and WiDr. GLI1 gene was not expressed in SW480 cells nor were GLI2/GLI3 in Colo205 or Caco-2 cells. Furthermore the repressive form of Gli3, characteristic of an inactive pathway, was detected in SW480 and Colo320 cells. Finally treatment of colon cancer cells with cyclopamine, a specific inhibitor of the Hh pathway, did not downregulate PTCH and GLI1 genes expression in the colorectal cells, whereas it did so in PANC1 control cells. Taken together, these results indicate that the aberrant activation of the Hh signaling pathway is not common in colorectal cancer cell lines. (c) 2007 Wiley-Liss, Inc. [less ▲]

Detailed reference viewed: 80 (12 ULg)