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See detailHow Stable are the Major Performance Measures?
Bodson, Laurent ULg; Coën, Alain ULg; Hübner, Georges ULg

in Journal of Performance Measurement (2008), (Fall), 21-30

In this paper, the authors compare three usual performance measures of actively managed portfolios: Jensen’s Alpha, the Information Ratio (IR), and the newly proposed Generalized Treynor Ratio (GTR ... [more ▼]

In this paper, the authors compare three usual performance measures of actively managed portfolios: Jensen’s Alpha, the Information Ratio (IR), and the newly proposed Generalized Treynor Ratio (GTR) introduced by Hübner (2005). They focus on model specification, sensitivity, and persistence for a large sample of mutual funds from January 1996 to December 2006. Their results reveal that fund classification made with the GTR displays a higher stability while the IR exhibits a greater capacity to reveal persistence in performance. The value of alpha is clearly contingent on model specifications and thus needs to be considered with greater caution to perform ranking of portfolio managers. [less ▲]

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See detailHow teacher teach : analysis of verbal interaction in the classroom
de Landsheere, Gilbert ULg

in Classroom Interaction Newsletter (1971), décembre

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See detailHow the *H-particle* unravels the quark dynamics
Stancu, Floarea ULg; Pepin, S.; Glozman, L Ya

in Physical Review. D : Particles and Fields (1998), D57

It is shown that the short-range part of the Goldstone boson exchange interaction between the constituent quarks, which explains baryon spectroscopy and the short-range repulsion in the NN system, induces ... [more ▼]

It is shown that the short-range part of the Goldstone boson exchange interaction between the constituent quarks, which explains baryon spectroscopy and the short-range repulsion in the NN system, induces a strong short-range repulsion in the flavour-singlet state of the $S=-2$ system with $J^P=0^+$. This suggests that a deeply bound H-particle should not exist. We compare our approach with other models employing different hyperfine interactions between quarks in the nonperturbative regime of QCD. [less ▲]

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See detailHow the debate on the protection of IDPs could inform the debate on the protection of environmental migrations
Gemenne, François ULg; Brücker, Pauline

Conference (2012, December 06)

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See detailHow the DNA damage response determines the fate of HTLV-1 Tax-expressing cells
Boxus, Mathieu ULg; Willems, Luc ULg

in Retrovirology (2012), 9(2),

How the Human T lymphotropic virus type 1 (HTLV-1) Tax protein stimulates proliferation while triggering cell cycle arrest and senescence remains puzzling. There is also a debate about the ability of Tax ... [more ▼]

How the Human T lymphotropic virus type 1 (HTLV-1) Tax protein stimulates proliferation while triggering cell cycle arrest and senescence remains puzzling. There is also a debate about the ability of Tax to activate or inhibit the DNA damage response. Here, we comment on these different activities and propose a conceptual rationale for the apparently conflicting observations. [less ▲]

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See detailHow the financial crash of October 1997 could have been predicted
Vandewalle, Nicolas ULg; Ausloos, Marcel ULg; Boveroux, P. et al

in European Physical Journal B -- Condensed Matter (1998), 4(2), 139-141

From the analysis of (closing value) stock market index like the Dow Jones Industrial average and the S&P500 it is possible to observe the precursor of a so-called crash. This is shown on the Oct. 1987 ... [more ▼]

From the analysis of (closing value) stock market index like the Dow Jones Industrial average and the S&P500 it is possible to observe the precursor of a so-called crash. This is shown on the Oct. 1987 and Oct. 1997 cases. The data analysis indicates that the index divergence has followed twice a "universal"; behavior, i.e. a logarithmic dependence, superposed on a well defined oscillation pattern. The prediction of the crash date is remarkable and can be done two months in advance. In the spirit of phase transition phenomena, the economic index is said to be analogous to a signal signature found in a two dimensional fluid of vortices. [less ▲]

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See detailHow the genomic environment of the HTLV-1 provirus impacts on clone fitness
Gillet, Nicolas ULg; Malani, Nirav; Berry, Charles et al

Conference (2010, May)

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See detailHow The Semiotic Square Came
Badir, Sémir ULg

in Beziau, Jean-Yves; Payette, Gillman (Eds.) The Square of Opposition. A General Framework for Cognition (2012)

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See detailHow they became the human face of climate change. Research and policy interactions in the birth of the ‘environmental migration’ concept.
Gemenne, François ULg

in Piguet, Etienne; Pécoud, Antoine; De Guchteneire, Paul (Eds.) Migration and Climate Change (2011)

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See detailHow to analyse thermodynamic properties of solids and liquids in relation with adhesion?
Courard, Luc ULg

in Ohama, Yoshihiko; Puterman, Moshe (Eds.) Proceedings of the 2nd International RILEM Symposium ISAP 99 (1999)

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See detailHow to Asess a Manager Recovery Skill?
Sougné, Danielle ULg; Bodson, Laurent ULg; Plunus, Séverine ULg et al

Scientific conference (2010, October 21)

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See detailHow to Bind the International Criminal Court by Human Rights Standards?
Deprez, Christophe ULg

Conference (2014, January 31)

Although no one seriously disputes the binding nature of human rights standards on the activity of the International Criminal Court (“the ICC” or “the Court”), the precise boundaries of this human rights ... [more ▼]

Although no one seriously disputes the binding nature of human rights standards on the activity of the International Criminal Court (“the ICC” or “the Court”), the precise boundaries of this human rights constraint still lack clarity. In particular, there is no consensus on the basis for such an obligation, especially given the fact that the Court is not party to the relevant international and regional instruments. It is argued that the lack of clarity on the exact foundations for the binding nature of human rights standards towards the Court presents a real threat to the development of international criminal jurisprudence. This is because the legal grounds on which the ICC is bound to respect individual rights are also determinative of the very content of the resulting obligations. This paper aims to contribute to remedy this lacuna by listing and critically assessing the theoretical legal constructions on the basis of which human rights law is commonly said to enter the framework of the Court. [less ▲]

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See detailHow To Bring Orphan Genes Into Functional Families
Bianchi, Mm.; Sartori, G.; Vandenbol, Micheline ULg et al

in Yeast (1999), 15(6),

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See detailHow to build a biological linker dedicated to the engineering of novel drug delivery systems
Crasson, Oscar ULg; Galleni, Moreno ULg; Parente, Raffaella et al

Poster (2014, May 15)

Nowadays, chemical linkages are widely used in industry to coat bioactive molecules on biocompatible supports. However, some issues inherent to the linkage procedure remain. For example, chemical ... [more ▼]

Nowadays, chemical linkages are widely used in industry to coat bioactive molecules on biocompatible supports. However, some issues inherent to the linkage procedure remain. For example, chemical reactions often damage the structure and therefore the activity of the immobilized molecules. In this work, we propose the use of a human chitin binding domain (ChBD) to immobilized bioactive molecules on a polysaccharide-based surface. ChBD belongs to the human chitinase called chitotriosidase and was shown to interact specifically with chitin and chitooligomers. Using molecular biology and protein engineering, we have developped of a new biological tool based on the hybrid protein technology. In this technology, we can create chimeric proteins that have the ability to bind polysaccharidic supports thanks to their binding domain that can be covalently linked with any bioactive molecule that can confer prophylactic or therapeutic activities. In this study, we have successfully shown that we can use the chitin binding domain (ChBD) from the human chitotriosidase as a biological linker dedicated to the engineering of novel drug delivery systems containing chitin or other analogous polysaccharides. [less ▲]

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See detailHow to capture Doppelganger Brand Image with Brand Concept Mapping
Brandt, Céline ULg; Pahud de Mortanges, Charles ULg; Van Riel, Allard et al

Scientific conference (2010, February)

In a Web 2.0 context, negative user-generated content (UGC) that damages the brand reputation can be easily produced and quickly spread. There is a lack of literature on how to measure the value ... [more ▼]

In a Web 2.0 context, negative user-generated content (UGC) that damages the brand reputation can be easily produced and quickly spread. There is a lack of literature on how to measure the value destruction, known as doppelgänger brand image (DBI). The authors define DBI as the appearance, or reinforcement, of negative associations at the brand reputation level. Brand reputation is the collective brand image that is shared by multiple stakeholders. Using brand concept mapping (BCM) on two corporate brands, this study shows the effect of exposure to negative UGC on the brand image perception and measures the impact of this exposure on DBI. The authors use a two*two between-subjects design with 280 consumers in order to study the effects of the type of media and source credibility, brand experience and Internet experience on the DBI. The results suggest that, the negative UGC will cause an increase in the frequency of mentions of negative associations. At the reputation level, if the brand already has a DBI, an exposure to negative UGC will reinforce it. However, if the brand reputation is mostly positive, a single exposure to negative UGC will not create a DBI. The results also confirm the effect of source credibility and type of media on the likelihood of DBI. The experience with the brand and with Internet will reduce the risk of DBI. [less ▲]

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See detailHow to Capture Life as it Happens ? An Aesthetical Approach to Joann Sfar’s Drawing
Hagelstein, Maud ULg

Conference (2009, October 17)

Which theoretical categories can we use to talk about an artist’s drawing? The quality of the line, the specific rhythm, the relationship between line and color, the degree of realism or the aesthetic ... [more ▼]

Which theoretical categories can we use to talk about an artist’s drawing? The quality of the line, the specific rhythm, the relationship between line and color, the degree of realism or the aesthetic influence of past masters: these are not easy to describe in an original way. The difficulties encountered in the traditional field of the fine arts also present themselves when considering comics because the drawing is specific and implicates a different temporality. The artists themselves regret the lack of a real aesthetic approach to their works, but we cannot simply transpose the usual discourse to the study of comics: as a young medium, this art form deserves relevant categories of analysis. My research will investigate what Aesthetics, as formal approach, could add to comics studies. I propose to read Joan Sfar’s auto-biographical notebooks published by L’association between 2002 and 2005 – in particular: Harmonica, Ukulélé, Parapluie, Piano, Caravan. These notebooks contain precious insight into his work method and his drawing. I would like to highlight several recurring themes. Sfar first criticizes the “academic drawing” he learned at school as being too “realist,” “anatomical,” and devoid of life. He explains that it took him a long time to depart from this kind of drawing. By contrast, he heartily advocates drawing directly from the perception of movement, situation, and expression, implying rapid and freehand drawing. In this context, Sfar refers to the famous illustrator Quentin Blake, who describes his career path, accompanied by relevant drawings, in La vie de la page (1995). I propose to compare Joan Sfar’s ideas on drawing with this principal influence on his work. Finally, the theory of color and light shows – in another way – the importance of the accidental and the uncalculated in his art. My arguments will be supported by various examples of Sfar’s work. [less ▲]

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See detailHow to check analytically the robustness of a building submitted to a column loss - A premiere
Huvelle, Clara ULg; Jaspart, Jean-Pierre ULg; Demonceau, Jean-François ULg

in Proceedings of Eurosteel 2014 conference (2014, September)

Recent events such as natural catastrophes or terrorism attacks have highlighted the necessity to ensure the structural integrity of buildings under an exceptional event. According to Eurocodes and some ... [more ▼]

Recent events such as natural catastrophes or terrorism attacks have highlighted the necessity to ensure the structural integrity of buildings under an exceptional event. According to Eurocodes and some other national design codes, the structural integrity of civil engineering structures should be guaranteed through appropriate measures and one way to guarantee it is to ensure an appropriate robustness of the structure, which may be defined as the ability of a structure to remain globally stable in case of exceptional event leading to local damages. However, although global design approaches are provided in modern codes and standards, no easy-to-apply practical guidelines are provided. The present paper reflects recent researches realised at the University of Liege with the scope of proposing such practical guidelines for the activation of alternative load path in the structure, design strategy generally leading to the most economical solutions. [less ▲]

Detailed reference viewed: 37 (14 ULg)