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See detailDiasporic Experience and Music in Caryl Phillips’s Crossing the River
Mascoli, Giulia ULiege

Conference (2015, September 07)

This paper deals with Caryl Phillips who has incessantly represented diasporic experience in his work where he evokes complex identities at the crossroads between Africa, the Caribbean and Europe. My ... [more ▼]

This paper deals with Caryl Phillips who has incessantly represented diasporic experience in his work where he evokes complex identities at the crossroads between Africa, the Caribbean and Europe. My proposal is to concentrate on Phillips’s novel Crossing the River (1993) which extensively explores the theme of the African diaspora and which, interestingly, has also been described as his most jazzy text. This narrative not only addresses diasporic themes, such as uprootings and lost origins, but very much like jazz -- which is for Brathwaite “a cry from the heart of the hurt man” (277) – it gives a voice to the victims of history, to shattered individuals in pain whose tragic fate is viewed at once as personal and collective. Benítez-Rojo draws attention to the importance of rhythm in this text, but he only provides a limited analysis with no specific examples of how this significant feature of the work is achieved or the purposes it serves. In this paper I will try to demonstrate that Phillips’s thematic and formal use of music, including the references to classic themes of the African American musical tradition or the recurrent and creative use of repetitions, has a performative role and reenacts the duty of remembering inherent in the diasporic experience. [less ▲]

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See detailDiasporic Hereafters in Jhumpa Lahiri’s “Once in a Lifetime”
Munos, Delphine ULiege

in Schultermandl, Silvia; Toplu, Sebnem (Eds.) A Fluid Sense of Self: The Politics of Transnational Identity (2011)

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See detailDiastematomyelia: pre- and postnatal multimodal diagnostic approach.
Passoglou, V.; Tebache, M.; Collignon, L. et al

in Journal Belge de Radiologie (1924) (2011), 94(6), 333-5

Diastematomyelia is a relatively rare congenital abnormality presenting as a sagittal separation of the spinal cord. Although cases of diastematomyelia have been previously reported, fully documented ... [more ▼]

Diastematomyelia is a relatively rare congenital abnormality presenting as a sagittal separation of the spinal cord. Although cases of diastematomyelia have been previously reported, fully documented approaches by both prenatal and postnatal diagnostic workup are rare in the literature. We present a fully studied case of diastematomyelia type I investigated by prenatal US and MRI and postnatal US, MRI and radiography. [less ▲]

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See detailDiastolic function evaluation after a long distance endurance race in athletic horses
Cerri, Simona ULiege

Conference (2016, April)

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See detailDiatechnische markering van lexemen bij Kiliaan: de invloed van Hadrianus Junius’ "Nomenclator"
Zimont, Elizaveta ULiege; Swiggers, Pierre ULiege

in Trefwoord, tijdschrift voor lexicografie (2014), (2014), 13

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See detailDiazepam-Insensitive Gabaa Receptors on Postnatal Spiral Ganglion Neurones in Culture
Malgrange, Brigitte ULiege; Rigo, Jean-Michel; Lefebvre, Philippe ULiege et al

in Neuroreport (1997), 8(3), 591-6

Using dissociated spiral ganglion cell cultures obtained from 3-day-old rat cochlea, we investigated the response of auditory neurones to gamma-aminobutyric acid (GABA) using patch-clamp techniques. In ... [more ▼]

Using dissociated spiral ganglion cell cultures obtained from 3-day-old rat cochlea, we investigated the response of auditory neurones to gamma-aminobutyric acid (GABA) using patch-clamp techniques. In our recording conditions, GABA elicited inward currents in > 95% of the neurones which reversed around 0 mV. Similar inward currents were measured using isoguvacin, a specific agonist of GABAA receptors. GABA-gated currents were reversibly inhibited by the channel blocker picrotoxin and the GABA competitive antagonist bicuculline. These functional GABAA receptors are characterized by an insensitivity to benzodiazepines and a relatively high sensitivity to beta-carbolines and barbiturates. These results show that the GABAA receptor pharmacological properties of spiral ganglion neurones are close to those of cerebellar granule cells. [less ▲]

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See detailDibarium zirconium tetraoxalate trihydrate
Vertruyen, Bénédicte ULiege; Robertz, Bénédicte; Guillaume, Bernard ULiege et al

in Acta Crystallographica Section C-Crystal Structure Communications (2004), 60(Pt 6), 233-234

A new mixed barium zirconium oxalate, triaquatetra-mu-oxalato-dibarium(II)zirconium(IV), Ba2Zr(C2O4)(4).3H(2)O or [Ba2Zr(C2O4)(4)(H2O)(3)](n), has been synthesized. The complex is built from eightfold ... [more ▼]

A new mixed barium zirconium oxalate, triaquatetra-mu-oxalato-dibarium(II)zirconium(IV), Ba2Zr(C2O4)(4).3H(2)O or [Ba2Zr(C2O4)(4)(H2O)(3)](n), has been synthesized. The complex is built from eightfold-coordinated Zr atoms and eleven- and sixfold-coordinated Ba atoms, linked by oxalate groups. The Zr atom, the two Ba atoms and one water O atom lie on crystallographic twofold axes, so that each coordination polyhedron has imposed C2 symmetry. Packing in the crystal is also assumed through hydrogen bonds. [less ▲]

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See detailDibattito e conclusioni
Di Gregorio, Luca ULiege

Conference (2017, November 22)

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See detailDibenzoylthiamine, a lipophilic thiamine precursor, protects against oxidative damage in neuroblastoma cells
Sambon, Margaux ULiege; Wins, Pierre; Bettendorff, Lucien ULiege

Poster (2017)

Recent evidence suggests that thiamine (vitamin B1) and some of its derivatives can exert prominent neuroprotective effects in the mammalian brain, particularly in mouse models of Alzheimer’s disease and ... [more ▼]

Recent evidence suggests that thiamine (vitamin B1) and some of its derivatives can exert prominent neuroprotective effects in the mammalian brain, particularly in mouse models of Alzheimer’s disease and tauopathies. As orally administered thiamine crosses intestinal and blood-brain barriers only slowly, precursors with higher bioavailability e.g. sulbutiamine, benfotiamine and dibenzoylthiamine, have been developed. We investigated the protective effects of thiamine and those precursors in neuroblastoma cells cultured in a medium containing minimal amounts of thiamine (10 nM), but sufficient to sustain normal growth. We induced oxidative stress by incubating the cells (24 h) in the presence of the neurotoxic agent paraquat (0.25 mM). This treatment reduced cell viability by 40%. When thiamine or the precursors were present simultaneously, we observed protective effects by the precursors while free thiamine was ineffective. Dibenzoylthiamine was most efficient, affording complete protection of cells at 10-20 µM. It also caused the highest increase in intracellular thiamine, suggesting that the protection from oxidative damage is linked to increased levels of free thiamine (rather than thiamine disphophate) in the neuroblastoma cells. The mechanism of this protective effect is presently under investigation. These results and others from our laboratory raise the possibility that dibenzoylthiamine might useful as a neuroprotective agent in neurodegenerative disease. [less ▲]

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See detailDiblock Copolymers as Emulsifying Agents in Polymer Blends: Influence of Molecular Weight, Architecture, and Chemical Composition
Cigana, P.; Favis, B. D.; Jérôme, Robert ULiege

in Journal of Polymer Science. Part B, Polymer Physics (1996), 34(9), 1691-1700

Interfacial agents used in the compatibilization of immiscible polymer blends often consist of block copolymers containing at least one segment compatible with each of the two phases of the blend. This ... [more ▼]

Interfacial agents used in the compatibilization of immiscible polymer blends often consist of block copolymers containing at least one segment compatible with each of the two phases of the blend. This work examines the influence of the molecular weight, architecture, and chemical composition of the interfacial agent on its ability to emulsify a polymer blend. The system chosen is a blend containing 80% polystyrene and 20% ethylene-propylene rubber, compatibilized by diblock copolymers of poly(styrene-hydrogenated butadiene). The emulsification curve, which relates the dispersed phase particle size to the concentration of interfacial agent added to the system, was used as a tool to characterize the efficacy of the different interfacial agents. The observed behavior is similar to that of classical emulsions: a rapid drop in phase size at low concentrations of interfacial modifier, followed by a levelling off to an equilibrium diameter value once a critical concentration has been reached. For systems compatibilized by symmetrical diblocks (i.e., containing approximately 50% styrene by weight), the volume average particle diameter decreased from 2.7 m for the unmodified system to about 0.4 m once interfacial saturation is reached. The critical concentration for emulsification decreased with increasing interfacial agent molecular weight, due to the higher interfacial area occupied by longer molecules; however, this parameter did not affect the equilibrium particle diameter. The asymmetrical diblock copolymer (30% styrene) was found to be less effective than the symmetrical ones over the entire range of concentrations studied (5 to 35% modifier, based on the volume of the minor phase). Asymmetrical diblock copolymers would tend to form micelles, whereas symmetrical copolymers are less constrained at the interface. No significant difference was observed between the emulsifying capability of tapered and pure diblocks of similar composition and molecular weight. [less ▲]

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See detailDiblock polyampholytes at the silicon-water interface: adsorption as a function of block ratio and molecular weight
Mahltig, Boris; Gohy, Jean-François; Jérôme, Robert ULiege et al

in Journal of Polymer Science. Part B, Polymer Physics (2001), 39(6), 709-718

Polyampholytes are highly charged macromolecules carrying oppositely charged functional groups. This article reports on the adsorption of a weak diblock polyampholyte, poly(methacrylic acid)-block-poly ... [more ▼]

Polyampholytes are highly charged macromolecules carrying oppositely charged functional groups. This article reports on the adsorption of a weak diblock polyampholyte, poly(methacrylic acid)-block-poly[(dimethylamino)ethyl methacrylate], as a function of the copolymer composition and molecular weight. The adsorption experiments were performed on silicon substrates from aqueous polymer solutions at different pHs. The amount of adsorbed polyampholyte chains to the surface was determined by ellipsometry, whereas lateral structures were investigated by scanning force microscopy. A strong influence of pH on the adsorbed amount and the lateral structure formation at the surface was observed. Especially at the isoelectric point, drastic changes in adsorption behavior were detected. At low molecular weights, an increased adsorbed amount was detected, a behavior in contrast to common theoretical predictions. This phenomenon is explained by the high stability of absorbed micelles, which cover the silicon surface as a dense layer. We conclude that micelle formation is an important process for polyampholyte adsorption, which needs to be taken into account more explicitly. [less ▲]

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See detailDiblock polyampholytes at the silicon/water interface: adsorption at various modified silicon substrates
Mahltig, Boris; Jérôme, Robert ULiege; Stamm, Manfred

in Physical Chemistry Chemical Physics [=PCCP] (2001), 3(19), 4371-4375

The adsorption behaviour of the ampholytic diblock copolymer poly(methacrylic acid)-block-poly((dimethylamino)ethyl methacrylate), PMAA-b-PDMAEMA, was investigated on differently prepared silicon surfaces ... [more ▼]

The adsorption behaviour of the ampholytic diblock copolymer poly(methacrylic acid)-block-poly((dimethylamino)ethyl methacrylate), PMAA-b-PDMAEMA, was investigated on differently prepared silicon surfaces. All adsorption experiments were performed from aqueous solutions as a function of pH. The polyampholyte amount adsorbed was determined ellipsometrically, while the topographies of the adsorbed polymer were investigated using scanning force microscopy (SFM). Three polyampholyte systems with similar molecular weight around 60000 g mol–1 and different block ratios were adsorbed on three different types of silicon substrates. Depending on the pretreatment the silicon substrates contained different isoelectric points (IEP) and hydrophobicity. The adsorbed amount, as a function of pH, was characterized by maxima and minima near the IEP of the polyampholytes. In the case of polyampholytes containing an IEP close to the IEP of the silicon substrates, the nature of the substrate strongly influenced the adsorption behaviour. Even a complete erasure of one adsorption maximum could be observed in some cases. In contrast to this, polyampholytes with an IEP in a pH area far away from the IEP of the substrates adsorbed in a quite similar manner on the different substrates. [less ▲]

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See detailDiboson anomaly: Heavy Higgs resonance and QCD vector-like exotics
Aristizabal Sierra, Diego ULiege; Vicente, Avelino; Herrero-Garcia, Juan et al

in Physical Review. D : Particles and Fields (2016), 93

The ATLAS collaboration (and also CMS) has recently reported an excess over Standard Model expectations for gauge boson pair production in the invariant mass region 1.8−2.2 TeV. In the light of these ... [more ▼]

The ATLAS collaboration (and also CMS) has recently reported an excess over Standard Model expectations for gauge boson pair production in the invariant mass region 1.8−2.2 TeV. In the light of these results, we argue that such signal might be the first manifestation of the production and further decay of a heavy CP-even Higgs resulting from a type-I Two Higgs Doublet Model. We demonstrate that in the presence of colored vector-like fermions, its gluon fusion production cross section is strongly enhanced, with the enhancement depending on the color representation of the new fermion states. Our findings show that barring the color triplet case, any QCD "exotic" representation can fit the ATLAS result in fairly large portions of the parameter space. We have found that if the diboson excess is confirmed and this mechanism is indeed responsible for it, then the LHC Run-2 should find: (i) a CP-odd scalar with mass below ∼2.3 TeV, (ii) new colored states with masses below ∼2 TeV, (iii) no statistically significant diboson events in the W±Z channel, (iv) events in the triboson channels W±W∓Z and ZZZ with invariant mass amounting to the mass of the CP-odd scalar. [less ▲]

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See detailDIC dynamics in a tropical estuary (Kiddogoweni, Kenya)
Borges, Alberto ULiege; Frankignoulle, M.; Delille, Bruno ULiege et al

Poster (2004, April)

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See detailDIC dynamics in the Bay of Palma (NW Mediterranean)
Borges, Alberto ULiege; Gazeau, F.; Gattuso, J. P. et al

Poster (2004, April)

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See detailDiC14-amidine cationic liposomes stimulate myeloid dendritic cells through Toll-like receptor 4.
Tanaka, Tetsuya; Legat, Amandine; Adam, Emmanuelle et al

in European journal of immunology (2008), 38(5), 1351-7

DiC14-amidine cationic liposomes were recently shown to promote Th1 responses when mixed with allergen. To further define the mode of action of diC14-amidine as potential vaccine adjuvant, we ... [more ▼]

DiC14-amidine cationic liposomes were recently shown to promote Th1 responses when mixed with allergen. To further define the mode of action of diC14-amidine as potential vaccine adjuvant, we characterized its effects on mouse and human myeloid dendritic cells (DC). First, we observed that, as compared with two other cationic liposomes, only diC14-amidine liposomes induced the production of IL-12p40 and TNF-alpha by mouse bone marrow-derived DC. DiC14-amidine liposomes also activated human DC, as shown by synthesis of IL-12p40 and TNF-alpha, accumulation of IL-6, IFN-beta and CXCL10 mRNA, and up-regulation of membrane expression of CD80 and CD86. DC stimulation by diC14-amidine liposomes was associated with activation of NF-kappaB, ERK1/2, JNK and p38 MAP kinases. Finally, we demonstrated in mouse and human cells that diC14-amidine liposomes use Toll-like receptor 4 to elicit both MyD88-dependent and Toll/IL-1R-containing adaptor inducing interferon IFN-beta (TRIF)-dependent responses. [less ▲]

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