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See detailThe Condition of Felicity of a Blind Instrument
Melard, François ULg

Conference (2001, November 03)

This paper deals with an historical and ethnographic case : the operation of field laboratories in the sugar industry and their use of an instrument to measure a vegetable - the sugar beet. An optical ... [more ▼]

This paper deals with an historical and ethnographic case : the operation of field laboratories in the sugar industry and their use of an instrument to measure a vegetable - the sugar beet. An optical instrument – the polariscope - gives voice to sugar beets in order to settle agreements on the vegetable's industrial definition and financial value. The polariscope gained its strange authority through a historical and technical capacity for mediation : a mediation between sugar beet growers and sugar manufacturers (and their social interests), but especially a mediation between these social actors and the vegetable itself. I focus on the idea that, in fact, this instrument is “blind” and describe the sociological “exchanges of properties” that take place between human and non-human actors in an industrial, public, and low-tech setting. My study shows that this is a challenging and alternative way - far from scientific laboratories - by which knowledge and coordination are produced. [less ▲]

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See detailCondition profane et condition sacrificielle selon Sâyana-Mâdhava
Verpoorten, Jean-Marie ULg

in Acta Orientalia Belgica (1991), 6

La description par Sāyaņa (commentateur de nombreuses œuvres relevant du Veda, 1296-1387) des préparatifs du sacrifice védique aux nouvelle et pleine lunes permet de saisir la méthode pour sacraliser ... [more ▼]

La description par Sāyaņa (commentateur de nombreuses œuvres relevant du Veda, 1296-1387) des préparatifs du sacrifice védique aux nouvelle et pleine lunes permet de saisir la méthode pour sacraliser actes et paroles profanes. Ces préparatifs commencent la veille du rite quand on cueille une branche grâce auquel on écartera les veaux des vaches qui fournissent le lait d’offrande. Puis vient la description minutieuse des gestes et des versets qui accompagnent la fabrication de la jonchée et celle du gâteau. On n’oublie pas d’amadouer ou d’expulser les forces démoniaques qui peuvent perturber la cérémonie. On construit l’autel (vedi) et on purifie les cuillers servant aux puisées de lait. L’un des officiants lie la ceinture de l’épouse du patron du sacrifice de manière à ce qu’elle participe avec lui au rite. Avec le beurre fondu qu’on a au préalable miré, on asperge matières oblatoires et bûches. Vient ensuite l’oblation dans le feu du lait mentionné ci-avant mais cette partie de la cérémonie n’est pas décrite ici. Le lecteur se rend compte, au fil des pages, que la condition profane des êtres et des choses se sacralise via des actes comme des attouchements, des essuyages, des effleurements, des aspersions, des filtrages et des échauffements accompagnés de versets au Ŗgveda etc. Contribuent aussi à cette sacralisation des instruments comme une côte de cheval pour couper de l’herbe ou les multiples cuillers sacrificielles. Les dieux ne peuvent pas sacrifier, parce qu’ils n’ont personne au dessus d’eux à qui faire une offrande .Les animaux ne le peuvent pas non plus, car ils ne peuvent exécuter des rites et n’en désirent pas les fruits. L’homme est donc le seul être capable de sacrifier, mais il doit se conformer à la méthode enseignée par la révélation védique. [less ▲]

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See detailLa condition techno-logique de l'homme
de Villers Grand Champs, Bénédicte ULg

in Piret, Pierre (Ed.) La littérature à l’ère de la reproductibilité technique. Réponses littéraires au niveau dispositif représentatif créé par les médias modernes (2007)

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See detailConditional Asset Allocation: Does Market Wide liquidity Matter?
Bazgour, Tarik ULg; Sougné, Danielle ULg; Heuchenne, Cédric ULg

Scientific conference (2013, March 07)

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See detailConditional Asset Allocation: Does Market Wide liquidity Matter?
Bazgour, Tarik ULg; Sougné, Danielle ULg; Heuchenne, Cédric ULg

Scientific conference (2013, April 17)

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See detailConditional Asset Allocation: Does Market Wide liquidity Matter?
Bazgour, Tarik ULg; Sougné, Danielle ULg; Heuchenne, Cédric ULg

Scientific conference (2013, June)

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See detailConditional asset allocation: Does Market-Wide Liquidity Matter?
Bazgour, Tarik ULg; Sougné, Danielle ULg; Heuchenne, Cédric ULg

E-print/Working paper (2012)

This paper investigates the effect of market-wide liquidity on optimal portfolio allocations across US equity portfolios sorted by size and book-to-market characteristics. In particular, we consider a ... [more ▼]

This paper investigates the effect of market-wide liquidity on optimal portfolio allocations across US equity portfolios sorted by size and book-to-market characteristics. In particular, we consider a single-period investor with a relative risk aversion of 5, and use the nonparametric approach of Brandt (1999) to directly express optimal portfolio weights as functions of market-wide liquidity innovations. We find, first, that the effect of market-wide liquidity is a decreasing function of investment horizon. Second, this effect is stronger in allocations in the small stock portfolio and gets weaker as we move towards the large stock portfolio. Third, conditional allocations in risky asset(s) decrease and exhibit shifts towards more liquid and less risky assets as market-wide liquidity worsens. Overall, our results show that allocations based on market-wide liquidity as a signal capture many phenomena that have been identified by researchers in the US market, such as the so-called “flight-to-safety”, flight-to-quality” and “flight-to-liquidity” episodes. Furthermore, in an out-of-sample test, results demonstrate the superior performance of a strategy based on market-wide liquidity compared to a benchmark strategy. [less ▲]

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See detailConditional Asset Allocation: Does Market-Wide Liquidity Matter?
Sougné, Danielle ULg; Heuchenne, Cédric ULg; Bazgour, Tarik ULg

Conference (2012, September 19)

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See detailConditional expression of type I interferon-induced bovine Mx1 GTPase in a stable transgenic vero cell line interferes with replication of vesicular stomatitis virus
Baise, Etienne ULg; Pire, Grégory; Leroy, Michael et al

in Journal of Interferon & Cytokine Research (2004), 24(9), 513-521

In some vertebrate species, type I interferon(IFN)-induced Mx gene expression has been shown to confer resistance to some single-stranded RNA (ssRNA) viruses in vitro. Because the bovine species is ... [more ▼]

In some vertebrate species, type I interferon(IFN)-induced Mx gene expression has been shown to confer resistance to some single-stranded RNA (ssRNA) viruses in vitro. Because the bovine species is subject to an exceptionally wide array of infections caused by such viruses, it is anticipated that an antiviral allele should have been retained by evolution at the bovine Mx locus. The identification of such allele may help in evaluating the real significance of the Mx genotype for disease resistance in vivo, in deciphering host-virus molecular interactions involved, or in improving innate disease resistance of livestock through marker-assisted selection. We validated a double transgenic Vero cell clone in which the bovine Mx1 reference allele is placed under control of the human cytomegalovirus (CMV) enhancer-promoter sequence containing elements from the bacterial tetracycline resistance operon to regulate transcription. In the selected clone, transgene repression was very tight, and derepression by doxycycline led to homogeneous 48-h duration expression of physiologic levels of bovine Mx1. Expression of the transgene caused a dramatic decrease in cytopathic efficiency and a 500-5000-fold yield reduction of the Indiana and New Jersey serotypes of vesicular stomatitis virus (VSV). To our knowledge, the transgenic clone developed here is the first ever reported that allows conditional expression of an Mx protein, thus providing a valuable tool for studying functions of Mx proteins in general and that of bovine Mx1 in particular. This latter may henceforward be included in the group of Mx proteins with authenticated anti-VSV activity, which offers new research avenues into the field of host-virus interactions. [less ▲]

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See detailConditional heteroscedasticity in pacific-basin stock market returns
Corhay, Albert ULg; Tourani-Rad, Alireza

in Research in International Business and Finance (1993), 10

This paper examines the statistical behavior of daily stock returns in several Pacific-Basin stock exchanges, which have grown tremendously in recent years. Empirical evidence reveals that return ... [more ▼]

This paper examines the statistical behavior of daily stock returns in several Pacific-Basin stock exchanges, which have grown tremendously in recent years. Empirical evidence reveals that return-generating models which empirically fit the data are processes with conditional heteroscedastic innovations. Particularly, the generalized autoregressive conditional heteroscedastic GARCH(1,1) process turns out to be the best in most cases. [less ▲]

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See detailConditional Heteroscedasticity in stock Returns: International Evidence
Corhay, Albert ULg; Tourani Rad, Alireza

in Fatemi, Khosrow; Salvatore, Dominick (Eds.) Foreign Exchange Issues, Capital Markets and International Banking in the 1990's (1993)

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See detailConditional Heteroscedasticity in Stock Returns: International Evidence
Corhay, Albert ULg; Tourani Rad, Alireza

E-print/Working paper (1991)

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See detailConditional heteroskedasticity adjusted market model and an event study
Corhay, Albert ULg; Tourani-Rad, Alireza

in Quarterly Review of Economics and Finance (1996), 36(4), 529-538

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See detailConditional knockout of nucleolin in DT40 cells reveals the functional redundancy of its RNA-binding domains.
Storck, Sebastien; Thiry, Marc ULg; Bouvet, Philippe

in Biology of the Cell (2009), 101(3), 153-67

BACKGROUND INFORMATION: Nucleolin is a major nucleolar protein which is highly expressed in rapidly dividing cells and cancer cell lines. This protein is claimed to be multifunctional and could play a ... [more ▼]

BACKGROUND INFORMATION: Nucleolin is a major nucleolar protein which is highly expressed in rapidly dividing cells and cancer cell lines. This protein is claimed to be multifunctional and could play a role in rRNA (ribosomal RNA) synthesis, as well as in cell division or response to cellular stresses. Therefore, how nucleolin influences cell proliferation remained elusive so far. RESULTS: We have generated conditional nucleolin-knockout cells using the chicken B lymphocyte cell line DT40. Our results indicate that nucleolin is absolutely required for the proliferation and for the survival of these cells. Depletion of nucleolin drastically inhibits rDNA (ribosomal DNA) transcription while only slightly affecting pre-rRNA processing. This inhibition is accompanied by modifications of the shape and the structure of the nucleolus. The analysis of mutants of nucleolin, which lack two or three RNA-binding domains, shows that these domains harbour redundant functions and that nucleolin's roles in transcription, rRNA maturation and nucleolar shape can be partially uncoupled. CONCLUSIONS: The function of nucleolin in ribosomal synthesis could account for its effect on cell division and survival, but this vital role does not seem to be linked to sequence-specific RNA binding. [less ▲]

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See detailConditional portfolio allocation: Does aggregate market liquidity matter?
Bazgour, Tarik ULg; Heuchenne, Cédric ULg; Sougné, Danielle ULg

in Journal of Empirical Finance (2016), 35

This paper investigates how aggregate liquidity influences optimal portfolio allocations across various US characteristic portfolios. We consider short-term allocation problems, with single and multiple ... [more ▼]

This paper investigates how aggregate liquidity influences optimal portfolio allocations across various US characteristic portfolios. We consider short-term allocation problems, with single and multiple risky assets, and use the nonparametric approach of Brandt (1999) to directly express optimal portfolio weights as functions of aggregate liquidity shocks. We find, first, that the effect of aggregate liquidity is positive and decreasing with the investment horizon. Second, at daily and weekly horizons, this effect is weaker on allocations in large stocks and gets stronger as we move toward small stocks, regardless of the other stock characteristics, suggesting that liquidity is the main concern of very short-term investors. Third, conditional allocations in risky assets decrease and exhibit shifts toward more liquid assets as aggregate liquidity worsens. Overall, conditioning on aggregate liquidity yields empirical results that are consistent with the so-called flight-to-safety and flight-to-liquidity episodes. Finally, we propose a simple tactical investment strategy and show how aggregate liquidity information can be exploited to enhance the out-of-sample performance of long-term strategies. [less ▲]

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See detailConditional watershed segmentation for grain boundary reconstruction
Pirard, Eric ULg; Delanaye, Annick ULg

in Acta Stereologica (1994), 14(1), 23-28

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See detailConditioned amphetamine effects and habituation in mice
Tirelli, Ezio ULg; Terry, P.

in National Institute on Drug Abuse Research Monograph Series (1992), 119

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See detailConditioned apomorphine-induced climbing: Influence of cue-exposure and the contribution of "forgetting" to the effects observed
Tirelli, Ezio ULg; Heidbreder, Christian; Terry, Phil

in Behavioural Pharmacology (1999), 10

Detailed reference viewed: 4 (0 ULg)