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See detailNeuroendocrinology of song behavior and avian brain plasticity: Multiple sites of action of sex steroid hormones
Ball, G. F.; Riters, L. V.; Balthazart, Jacques ULiege

in Frontiers in Neuroendocrinology (2002), 23(2), 137-178

Seasonal changes in the brain of songbirds are one of the most dramatic examples of naturally occuring neuroplasticity that have been described in any vertebrate species. In males of temperate-zone ... [more ▼]

Seasonal changes in the brain of songbirds are one of the most dramatic examples of naturally occuring neuroplasticity that have been described in any vertebrate species. In males of temperate-zone songbird species, the volumes of several telencephalic nuclei that control song behavior are significantly larger in the spring than in the fall. These increases in volume are correlated with high rates of singing and high concentrations of testosterone in the plasma. Several song nuclei express either androgen receptors or estrogen receptors, therefore it is possible that testosterone acting via estrogenic or androgenic metabolites regulates song behavior by seasonally modulating the morphology of these song control nuclei. However, the causal links among these variables have not been established. Dissociations among high concentrations of testosterone, enlarged song nuclei, and high rates of singing behavior have been observed. Singing behavior itself can promote cellular changes associated with increases in the volume of the song control nuclei. Also, testosterone may stimulate song behavior by acting in brain regions outside of the song control system such as in the preoptic area or in catecholamine cell groups in the brainstem. Thus testosterone effects on neuroplasticity in the song system may be indirect in that behavioral activity stimulated by testosterone acting in sites that promote male sexual behavior could in turn promote morphological changes in the song system. (C) 2002 Elsevier Science (USA). [less ▲]

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See detailGravitational lensing in quasar samples
Claeskens, Jean-François ULiege; Surdej, Jean ULiege

in Astronomy and Astrophysics Review (2002), 10(4), 263-311

The first cosmic mirage was discovered approximately 20 years ago as the double optical counterpart of a radio source. This phenomenon had been predicted some 70 years earlier as a consequence of General ... [more ▼]

The first cosmic mirage was discovered approximately 20 years ago as the double optical counterpart of a radio source. This phenomenon had been predicted some 70 years earlier as a consequence of General Relativity. We present here a summary of what we have learnt since. The applications are so numerous that we had to concentrate on a few selected aspects of this new field of research. This review is focused on strong gravitational lensing, i.e. the formation of multiple images, in QSO samples. It is intended to give the reader an up-to-date status of the observations and to present an overview of its most interesting potential applications in cosmology and astrophysics, as well as numerous important results achieved so far. The first section follows an intuitive approach to the basics of gravitational lensing and is developed in view of our interest in multiply imaged quasars. The astrophysical and cosmological applications of gravitational lensing are outlined in Sect. 2 and the most important results are presented in Sect. 5. Sections 3 and 4 are devoted to the observations. Finally, conclusions are summarized in the last section. We have tried to avoid duplication with existing (and excellent) introductions to the field of oravitational lensing. For this reason, we did not concentrate on the individual properties of specific lens models, as these are already well presented in Narayan and Bartelmann (1996) and on a more intuitive ground in Refsdal and Surdej (1994). Wambsganss (1998) proposes a broad view on gravitational lensing, in astronomy; the reviews by Fort and Mellier (1994) and Hattori et al. (1999) deal with lensing by galaxy clusters, microlensing in the Galaxy and the local group is reviewed by Paczynski (1996) and a general panorama on weak lensing is given by Bartelmann and Schneider (1999) and Mellier (1999). The monograph on the theory of gravitational lensing by Schneider, Ehlers and Falco (1992) also remains a reference in the field. [less ▲]

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See detailWhole-body FDG-PET imaging in the management of patients with cancer
Hustinx, Roland ULiege; Bénard, François; Alavi, Abass

in Seminars in Nuclear Medicine (2002), 32(1), 35-46

Fluorodeoxyglucose-positron emission tomography (FDG-PET) imaging is increasingly used for the management of patients with cancer. The technique is now well accepted by most physicians as an effective ... [more ▼]

Fluorodeoxyglucose-positron emission tomography (FDG-PET) imaging is increasingly used for the management of patients with cancer. The technique is now well accepted by most physicians as an effective complement to the existing imaging modalities. For many malignancies, PET achieves high sensitivity and specificity. The critical role of this powerful technique is realized increasingly in the day-to-day practice of oncology. This is particularly true for the management of patients with non-small-cell lung cancer (NSCLC). The contribution of PET for the selection of patients eligible for curative treatments in this setting is well established. Convincing data also exist to support the use of PET for evaluating patients with recurrent colorectal carcinoma, for staging and restaging lymphomas, and for diagnosing recurrent thyroid carcinoma in the presence of elevated thyroglobulin and negative I-131 scans. Other indications include staging of various recurrent malignancies, such as breast cancer, melanoma, and head and neck and gynecologic carcinomas. Existing data are limited for the determination of the impact of PET in certain malignancies, and further studies, which should include outcome information, will allow clarification of the role of this modality for such indications. Despite the small number of studies specifically designed to assess changes in management plans for some malignancies after performing PET the overall favorable results are encouraging enough at this time to include this modality as an essential element of the practice of modern oncology. Finally, the evolving role of PET imaging as a predictor of response after local or systemic treatment may add a major dimension to the application of this novel technique. Copyright (C) 2002 by WB. Saunders Company. [less ▲]

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See detailL’herpèsvirus B du singe, un agent d’anthropozoonose méconnu
Meurens, F.; Gallego, P.; Bourgot, I. et al

in Annales de Médecine Vétérinaire (2002), 146(1, FEB-MAR), 1-8

B-virus or Cercopithecine herpesvirus 1 (CeHV-1) is a zoonotic alphaherpesvirus enzootic in Asian monkeys of the genus Macaca that is genetically and antigenically closely related to the human herpesvirus ... [more ▼]

B-virus or Cercopithecine herpesvirus 1 (CeHV-1) is a zoonotic alphaherpesvirus enzootic in Asian monkeys of the genus Macaca that is genetically and antigenically closely related to the human herpesvirus 1 and the human herpesvirus 2. CeHV-1 infection is highly prevalent (80% to 100%) in adult macaques and may lead to fulminant encephalomyelitis with severe aftereffects or even causing death in humans. Since its discovery in 1933, it has been positively linked with two dozen human deaths. B-virus disease in humans usually resulted from breach of primary skin or mucosal defenses and subsequent contamination of the site with virus. Timely antiviral intervention is a good mean of reducing CeHV-1 associated morbidity and preventing a fatal outcome. [less ▲]

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See detailStratégies de prévention des avortements provoqués par les herpèsvirus et les pestivirus de ruminants
Thiry, Etienne ULiege

in Annales de Médecine Vétérinaire (2002), 146(3, JUN-JUL), 161

Bovine herpesviruses 1 and 4 (BoHV-1 and BoHV-4) and caprine herpesvirus (CpHV-1) are responsible of abortion. Abortions caused by BoHV-1 happen during outbreaks of infectious bovine rhinotracheitis ... [more ▼]

Bovine herpesviruses 1 and 4 (BoHV-1 and BoHV-4) and caprine herpesvirus (CpHV-1) are responsible of abortion. Abortions caused by BoHV-1 happen during outbreaks of infectious bovine rhinotracheitis whereas BoHV-4 is associated with abortion but is not a very high risk factor. CpHV-1 infection is not yet identified in Belgium and in France. Bovine and ovine pestiviruses, bovine viral diarrhea and Border disease viruses, respectively, provoke abortions mainly during the first half of gestation. At the herd level, the prevention of abortion caused by these viruses can be achieved by the control of virus circulation with the help of vaccination or the elimination of persistently infected animals. At the individual level, immunisation with inactivated vaccines induces a high humoral response with high levels of neutralising antibodies, able to prevent the viremia and foetus infection. [less ▲]

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See detailDoes the P(2X1del) variant lacking 17 amino acids in its extracellular domain represent a relevant functional ion channel in platelets?
Oury, Cécile ULiege; Toth-Zsamboki, Emese; Vermylen, Jos et al

in Blood (2002)

In this letter, we questionned the existence of a ADP responsive P2X1 protein variant in platelets.

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See detailAdsorption of selenium wires in silicalite-1 zeolite: a first order transition in a microporous system
Bichara, C.; Raty, Jean-Yves ULiege; Pellenq, RJ-M

in Physical Review Letters (2002), 89(1), 016101-1-016101-016101-4016101-016101-4

A tight binding grand canonical Monte Carlo simulation of the adsorption of selenium in silicalite-1 zeolite is presented. The calculated adsorption-desorption isotherms exhibit characteristic features of ... [more ▼]

A tight binding grand canonical Monte Carlo simulation of the adsorption of selenium in silicalite-1 zeolite is presented. The calculated adsorption-desorption isotherms exhibit characteristic features of a first order transition, unexpected for adsorption in a microporous system with pore size of the order of 0.5 to 0.6 nm. We analyze this behavior as a result of the favored twofold coordinated chain structure of selenium that grows inside the complex three-dimensional microchannel network of silicalite. This analysis is confirmed by simpler calculations of a lattice gas-type model [less ▲]

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See detailHeat shock proteins. I : Classification and roles in pathological processes
Wirth, Delphine; Gustin, Pascal ULiege; Drion, Pierre ULiege et al

in Annales de Médecine Vétérinaire (2002), 146(4), 201-216

All living systems have evolved mechanisms to maintain homeostasis in the face of rapid environmental changes. When exposed to elevated temperatures, most of the cells activate the synthesis of a specific ... [more ▼]

All living systems have evolved mechanisms to maintain homeostasis in the face of rapid environmental changes. When exposed to elevated temperatures, most of the cells activate the synthesis of a specific group of proteins called Heat Shock Proteins (Hsps). This heat shock response, under control of specific transcription factors, the Heat Shock factors (HSF), is an evolutionarily conserved mechanism, from bacteria to humans. Heat Shock Proteins are classified into families according to their molecular weight (Hsp 25, 40, 70, 90, 105). They play the role of molecular chaperones by binding and protecting other molecules (proteins, RNAs). The function of Hsp is to prevent accumulation of non-native proteins either by assisting proper folding of polypeptides or by driving them to proteosome pathway for degradation. Hsps are involved in various pathological processes that are accompanied by protein alterations such as chronic or degenerative diseases. This review describes structural and functional characteristics of the six main Hsps classes. It also focuses on their respective role in highly studied pathologies. The diversity of Hsps implications in these diseases explains that they became recently a strategic target in development of new therapeutic strategies. [less ▲]

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See detailHigh resolution X-ray spectroscopy of zeta Puppis with the XMM-Newton reflection grating spectrometer
Kahn, S. M.; Leutenegger, M. A.; Cottam, J. et al

in Astronomy and Astrophysics (2001), 365

We present the first high resolution X-ray spectrum of the bright O4Ief supergiant star zeta Puppis, obtained with the Reflection Grating Spectrometer on-board XMM-Newton. The spectrum exhibits bright ... [more ▼]

We present the first high resolution X-ray spectrum of the bright O4Ief supergiant star zeta Puppis, obtained with the Reflection Grating Spectrometer on-board XMM-Newton. The spectrum exhibits bright emission lines of hydrogen-like and helium-like ions of nitrogen, oxygen, neon, magnesium, and silicon, as well as neon-like ions of iron. The lines are all significantly resolved, with characteristic velocity widths of order 1000-1500 km s[SUP]-1[/SUP]. The nitrogen lines are especially strong, and indicate that the shocked gas in the wind is mixed with CNO-burned material, as has been previously inferred for the atmosphere of this star from ultraviolet spectra. We find that the forbidden to intercombination line ratios within the helium-like triplets are anomalously low for N VI, O VII, and Ne IX. While this is sometimes indicative of high electron density, we show that in this case, it is instead caused by the intense ultraviolet radiation field of the star. We use this interpretation to derive constraints on the location of the X-ray emitting shocks within the wind that are consistent with current theoretical models for this system. [less ▲]

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See detailThe P2Y1 receptor antagonist adenosine-2',5'-diphosphate non-selectively antagonizes the platelet P2X1 ion channel.
Oury, Cécile ULiege; Toth-Zsamboki, Emese; Tytgat, Jan et al

in Thrombosis and Haemostasis (2001)

This letter indicates a lack of specificity of a platelet P2Y1 receptor antagonist.

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See detailCorrect regimen of fluoride and calcium reduces the risk of vertebral fractures in postmenopausal osteoporosis
Reginster, Jean-Yves ULiege; Rovati, L; Setnikar, I

in Osteoporosis International (2001), 12

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See detailIatrogenic thyrotoxicosis. Causal circumstances, pathophysiology and principles of treatment. Review of the literature
Meurisse, Michel ULiege; Preud'Homme, Laurence ULiege; Lamberty, Geoffrey ULiege et al

in Acta Chirurgica Belgica (2001), 101(6), 257-266

Thyrotoxicosis is the clinical syndrome that results when tissues are exposed to high levels of circulating thyroid hormones. In most instances, thyrotoxicosis is due to hyperthyroidism, a term reserved ... [more ▼]

Thyrotoxicosis is the clinical syndrome that results when tissues are exposed to high levels of circulating thyroid hormones. In most instances, thyrotoxicosis is due to hyperthyroidism, a term reserved for disorders characterized by overproduction of thyroid hormones by the thyroid gland. Nevertheless, thyrotoxicosis may also result from a variety of conditions other than thyroid hyperfunction. The present report focuses on the etiologies, pathophysiology and treatment of iatrogenic thyrotoxicosis. Iatrogenic thyrotoxicosis may be caused by 1) subacute thyroiditis (a result of lymphocytic infiltration, cellular injury, trauma or radiation) with release of preformed hormones into circulation, 2) excessive ingestion of thyroid hormones ("thyrotoxicosis factitia"), 3) iodine-induced hyperthyroidism (radiological contrast agents, topical antiseptics or other medications). Among these causes of iatrogenic thyrotoxicosis, that induced by the iodine overload and cytotoxicity associated with amiodarone represents a significant challenge. Successful management of amiodarone-induced thyrotoxicosis requires close cooperation between endocrinologists and endocrine Surgeons. Surgical treatment may have a leading yet often underestimated role in view of the potential life-threatening severity of this disease, whereas others kinds of iatrogenic thyrotoxicosis are usually treated conservatively. [less ▲]

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See detailLaparascopic management of a unicornuate uterus with two cavitated, non-communicating rudimentary horns
NISOLLE, Michelle ULiege; Donnez, Jacques

in Human Reproduction (2000), 15(8), 1873-4

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See detailPredictive value of ovarian endometriosis?
NISOLLE, Michelle ULiege; Donnez, Jacques

in Fertility and Sterility (2000), 73(2), 419-20

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See detailEvidence of a reentrant Peierls distortion in liquid GeTe
Raty, Jean-Yves ULiege; Godlevsky, V.; Ghosez, Philippe ULiege et al

in Physical Review Letters (2000), 85(9), 1950-1953

The local atomic order of semiconducting liquid GeTe is studied using first-principles molecular-dynamics simulations. Our work points out a high degree of alternating chemical order in the liquid and ... [more ▼]

The local atomic order of semiconducting liquid GeTe is studied using first-principles molecular-dynamics simulations. Our work points out a high degree of alternating chemical order in the liquid and demonstrates the presence of a Peierls distortion close above the melting temperature. This distortion, absent in the high temperature crystalline structure of NaCl type, is a remnant of the atomic arrangement in the A7 low temperature crystalline phase. It disappears slowly with temperature, as the liquid evolves from a semiconducting to a metallic state. [less ▲]

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See detailHepatitis C virus transmission following invasive medical procedures
Delwaide, Jean ULiege; Gerard, Christiane ULiege; Vaira, Dolorès ULiege et al

in Journal of Internal Medicine (1999), 245(1), 107-108

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See detailSequentially compressive and intrusive mechanisms in mercury porosimetry of carbon blacks
Pirard, René ULiege; Sahouli, Bendida; Blacher, Silvia ULiege et al

in Journal of Colloid & Interface Science (1999), 217(1), 216-217

The mechanism of mercury penetration in two different commercial carbon blacks is studied. We show that the volume variation measured by mercury porosimetry in these systems is due to three successive ... [more ▼]

The mechanism of mercury penetration in two different commercial carbon blacks is studied. We show that the volume variation measured by mercury porosimetry in these systems is due to three successive mechanisms, which occur as the pressure increases: (1) mercury invasion of voids between macroscopic grains, (2) compaction and elastic compression of macroscopic grains, (3) intrusion in the voids of aggregates formed by primary particles. The cumulative surface calculated by the Rootare-Prenzlow equation (S-RP) in the intrusion part and the BET surface area measured by nitrogen adsorption (S-BET) are compared. (C) 1999 Academic Press. [less ▲]

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See detailHigh-Resolution Optical and Near-Infrared Imaging of the Quadruple Quasar RX J0911.4+0551
Burud, I.; Courbin, F.; Lidman, C. et al

in Astrophysical Journal (1998), 501

We report the detection of four images in the recently discovered lensed QSO RX J0911.4+0551. With a maximum angular separation of 3."1, it is the quadruply imaged QSO with the widest known angular ... [more ▼]

We report the detection of four images in the recently discovered lensed QSO RX J0911.4+0551. With a maximum angular separation of 3."1, it is the quadruply imaged QSO with the widest known angular separation. Raw and deconvolved data reveal an elongated lens galaxy. The observed reddening in at least two of the four QSO images suggests differential extinction by this lensing galaxy. We show that both an ellipticity of the galaxy ( epsilon _{{min}}=0.075 ) and an external shear ( gamma _{{min}}=0.15 ) from a nearby mass have to be included in the lensing potential in order to reproduce the complex geometry observed in RX J0911.4+0551. A possible galaxy cluster is detected about 38" from RX J0911.4+0551 and could contribute to the X-ray emission observed by ROSAT in this field. The color of these galaxies indicates a plausible redshift in the range of 0.6-0.8. [less ▲]

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See detailImage Deconvolution of the Radio Ring PKS 1830-211
Courbin, F.; Lidman, C.; Frye, B. L. et al

in Astrophysical Journal (1998), 499

New high-quality Keck and ESO images of PKS 1830-211 are presented. By applying a powerful new deconvolution algorithm to these optical and infrared data, both images of the flat spectrum core of the ... [more ▼]

New high-quality Keck and ESO images of PKS 1830-211 are presented. By applying a powerful new deconvolution algorithm to these optical and infrared data, both images of the flat spectrum core of the radio source have been identified. An extended source is also detected in the optical images which is consistent with the expected location of the lensing galaxy. The source counterparts are very red at I-K~7 , which suggests strong Galactic absorption with additional absorption by the lensing galaxy at z=0.885 and is consistent with the detection of high-redshift molecules in the lens. [less ▲]

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See detailClassical support for non-dispersive two electron wave packets in the driven helium atom
Schlagheck, Peter ULiege; Buchleitner, A.

in Journal of Physics : B Atomic Molecular & Optical Physics (1998), 31(11), 489-495

We present numerical evidence for the existence of a classically non-ionizing, highly correlated two-electron configuration which emerges from the frozen planet configuration of helium exposed to an ... [more ▼]

We present numerical evidence for the existence of a classically non-ionizing, highly correlated two-electron configuration which emerges from the frozen planet configuration of helium exposed to an electromagnetic field of linear polarization. A static electric field parallel to the polarization axis prevents this configuration from transverse ionization. We argue that the corresponding nonlinear resonance island in 12D phase space supports nondispersive wave packets of the helium atom in combined oscillating and static electric fields. [less ▲]

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See detailDifferentiation between begnin and malignant breast lesions with MR imaging and scintimammography
Servais, Fabienne; Blocklet, Didier; Seret, Alain ULiege et al

in Radiology (1997), 205(1), 283

No abstract for this letter.

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See detailThe geometry of the quadruply imaged quasar PG 1115+080: implications for H_0_.
Courbin, F.; Magain, Pierre ULiege; Keeton, C. R. et al

in Astronomy and Astrophysics (1997), 324

Time delay measurements have recently been reported for the lensed quasar PG 1115+080. These measurements can be used to derive H_0_, but only if we can constrain the lensing potential. We have applied a ... [more ▼]

Time delay measurements have recently been reported for the lensed quasar PG 1115+080. These measurements can be used to derive H_0_, but only if we can constrain the lensing potential. We have applied a recently developed deconvolution technique to analyze sub-arcsecond I band images of PG 1115+080, obtained at the Nordic Optical Telescope (NOT) and the Canada France Hawaii Telescope (CFHT). The high performance of the deconvolution code allows us to derive precise positions and magnitudes for the four lensed images of the quasar, as well as for the lensing galaxy. The new measurement of the galaxy position improves its precision by a factor of 3 and thus strengthens the constraints on the lensing potential. With the new data, a range of models incorporating some of the plausible systematic uncertainties yields H_0_=53^+10^_-7_km/s/Mpc. [less ▲]

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See detailProgesterone receptors (PR) in ectopic endometrium?
NISOLLE, Michelle ULiege; Donnez, Jacques

in Fertility and Sterility (1997), 68(5), 943-4

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See detailJ03.13 A and B: a new multiply imaged QSO candidate.
Claeskens, Jean-François ULiege; Surdej, Jean ULiege; Remy, M.

in Astronomy and Astrophysics (1996), 305

Careful analysis of direct R CCD frames obtained for selected Highly Luminous Quasars in March 1993 with the MPI/ESO 2.2m telescope has revealed that the quasar J03.13 consists of at least two point-like ... [more ▼]

Careful analysis of direct R CCD frames obtained for selected Highly Luminous Quasars in March 1993 with the MPI/ESO 2.2m telescope has revealed that the quasar J03.13 consists of at least two point-like components, constituting therefore a new gravitational lens candidate. Follow-up direct imagery of this interesting object with the New Technology Telescope (NTT) + SUSI in February 1994, using the Bessel B, R and Gunn-i filters, tends to confirm the gravitational lens hypothesis. The mean angular separation and magnitude difference between the A & B images are found to be 0.84"+/-0.03" and 2.1+/-0.1mag, respectively. A spatially unresolved, medium resolution spectrum of J03.13, obtained with the NTT + EMMI in February 1994, shows that the QSO has a redshift z=2.55, with Lyalpha and CIV absorptions at z=2.34 and MgII, MgI and FeII absorptions at z=1.085. The latter absorptions might be associated with a sigma=206km/s lens galaxy. B, R and Gunn-i photometric observations of J03.13 during 1994 and 1995 do not show evidence for flux variations exceeding 0.03mag. HST direct imagery with WFPC2 and FOS spectroscopy of J03.13 A & B are planned during cycle 5. [less ▲]

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See detailScreening for in vitro Antifungal Activities of some Indole Alkaloids
Quetin-Leclercq, J.; Favel, A.; Balansard, G. et al

in Planta Medica (1995), 61

Thirty indole alkaloids were tested by the agar dilution technique on a panel of human pathogenic fungi, yeasts and dermatophytes. Our results indicate that the most active compounds possess a beta ... [more ▼]

Thirty indole alkaloids were tested by the agar dilution technique on a panel of human pathogenic fungi, yeasts and dermatophytes. Our results indicate that the most active compounds possess a beta-carboline skeleton and that the presence of a 3,4 double bond enhances the activity. Our results also show that antifungal activities are not linked to the cytotoxic, antimicrobial or antiparsitic properties. [less ▲]

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See detailHalofantrine resistance in African countries
Carme, Bernard; Gay, Frédéric; Hayette, Marie-Pierre ULiege et al

in Lancet (1993), 341

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See detailBarium isotopes in the very metal-poor star HD 140283
Magain, Pierre ULiege; Zhao, G.

in Astronomy and Astrophysics (1993), 268

The fractions of odd and even isotopes of barium in the metal-poor star HD140283 are determined from an analysis of the profile of the Ba II resonance line, taking advantage of the differences in ... [more ▼]

The fractions of odd and even isotopes of barium in the metal-poor star HD140283 are determined from an analysis of the profile of the Ba II resonance line, taking advantage of the differences in hyperfine structure splitting between the different isotopes. Although one would expect an increased contribution of the r-process in very metal-poor stars, it is found that the isotopic ratio is very close to solar. [less ▲]

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See detailCytotoxic Activity of Some Triterpenoid Saponins
Quetin-Leclercq, J.; Elias, R.; Balansard, G. et al

in Planta Medica (1992), 58

The present note deals with the cytotoxic activity of purified saponins of hedera helix and of saponins isolated from other plants ( Calendula officinalis, C. arvensis and Sapindus mukurossi with a view ... [more ▼]

The present note deals with the cytotoxic activity of purified saponins of hedera helix and of saponins isolated from other plants ( Calendula officinalis, C. arvensis and Sapindus mukurossi with a view to the detection of possible structure-activity relationships. The most active compounds are the monodesmosides which show some degree of cytotoxicity at concentrations of 10 micrograms/ml and above. Among them, alpha- and beta-hederin are the most potent substances. [less ▲]

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See detail"Arterialization", "revascularization" , "rearterialization" - what's in a name?
D'Silva, Milbhor; Pirenne, Jacques; Bonnet, Pierre ULiege et al

in Transplant International (1992), (5), 121-122

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See detailAntiparasitic Properties of Diploceline, a Quaternary Alkaloid from Strychnos gossweileri
Gasquet, Monique; Quetin-Leclercq, Joëlle; Timon-David, Pierre et al

in Planta Medica (1992), 58

The activity of diploceline is relatively weak as compared to metronidazole on Entamoeba histolytica and Trichomonas vaginalis. The quaternary alkaloid does not produce any inhibition of Plasmodium ... [more ▼]

The activity of diploceline is relatively weak as compared to metronidazole on Entamoeba histolytica and Trichomonas vaginalis. The quaternary alkaloid does not produce any inhibition of Plasmodium falciparum growth at 25 micrograms/ml (maximum tested concentration). [less ▲]

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See detailMourir,ultime tendresse (CR)
Stassart, Martine ULiege

in Psychologica Belgica (1991), 3(1), 120-121

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See detailEnterohaemolysin and Shiga-like toxin genes in E.coli.
Pohl, P.; Lintermans, P.; Mainil, Jacques ULiege et al

in Veterinary Record : Journal of the British Veterinary Association (1990)

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See detailNew evidence against the existence of very massive stars
Heydari-Malayeri, M.; Remy, M.; Magain, Pierre ULiege

in Astronomy and Astrophysics (1988), 201

The most luminous stars are our first probes for exploring the stellar content of distant galaxies. They have also been used as standard candles for extragalactic distance determinations. The authors show ... [more ▼]

The most luminous stars are our first probes for exploring the stellar content of distant galaxies. They have also been used as standard candles for extragalactic distance determinations. The authors show that Sk -66°41, one of the brightest stars in the Large Magellanic Cloud (LMC), is a multiple system consisting of at least six components. This result has important consequences for the understanding of star formation mechanisms, especially the upper limit to stellar masses. Moreover, when primary distance indicators are not available, care should be taken in using the brightest blue stars. The derived distances, depending on the number of cluster members, can easily be underestimated by more than a factor 2, leading to larger values for the Hubble constant. [less ▲]

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See detailDiscovery of a quadruply lensed quasar - The 'clover leaf' H1413 + 117
Magain, Pierre ULiege; Surdej, Jean ULiege; Swings, J.-P. et al

in Nature (1988), 334

The authors report the discovery of a second gravitational lens system in the broad absorption line quasar H1413+117. Four images of comparable brightness are seen, separated by â ¡1 arcsec. The unique ... [more ▼]

The authors report the discovery of a second gravitational lens system in the broad absorption line quasar H1413+117. Four images of comparable brightness are seen, separated by â ¡1 arcsec. The unique configuration of the images, together with the fairly rare occurrence of this type of quasar, makes it incontrovertible that this is a lensed system, not a cluster of quasars. (See also 159.062). [less ▲]

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See detailANOMALOUS ELECTRON HEAT-TRANSPORT DRIVEN BY LOW-FREQUENCY ELECTROMAGNETIC TURBULENCE - REPLY
Thoul, Anne ULiege; Similon, P.L.; Sudan, R.N.

in Physical Review Letters (1988), 60(10), 967-967

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See detailInterstellar calcium towards supernova 1987A in the Large Magellanic Cloud
Magain, Pierre ULiege

in Nature (1987), 329

High-resolution and high SNR spectra of interstellar calcium towards SN1987A in the LMC are presented. They provide completely new results for the Ca I spectrum, in which 11 components are detected, not ... [more ▼]

High-resolution and high SNR spectra of interstellar calcium towards SN1987A in the LMC are presented. They provide completely new results for the Ca I spectrum, in which 11 components are detected, not only at velocities corresponding to the Galaxy and the LMC, but also at intermediate velocities. The spectra, which allow the ionization balance in these interstellar clouds to be estimated, provide some clues about their physical state and location. In particular, the components between 150 and 200 km/s show a much lower ionization degree than other components. This may be due to recent compressions of the gas by a shock, possibly associated with a former supernova explosion. This interpretation would require the corresponding clouds to be located inside the LMC, indicating that at least some intermediate velocity components are not of halo origin. [less ▲]

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See detailDetection of interstellar CH and CH(+) towards SN 1987a
Magain, Pierre ULiege; Gillet, D.

in Astronomy and Astrophysics (1987), 184

The authors report the detection of interstellar CH and CH[SUP]+[/SUP] towards supernova 1987A. For both of these molecules, one component is detected at a heliocentric velocity of about 280 km/s ... [more ▼]

The authors report the detection of interstellar CH and CH[SUP]+[/SUP] towards supernova 1987A. For both of these molecules, one component is detected at a heliocentric velocity of about 280 km/s, corresponding to material inside the LMC. Some implications of the authors' results with regards to the H[SUB]2[/SUB]-to-dust ratio are briefly discussed. [less ▲]

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See detailHD 151932 variability revisited
Vreux, Jean-Marie ULiege; Manfroid, Jean ULiege; Scuflaire, Richard ULiege et al

in Astronomy and Astrophysics (1987), 180

The observation of variations in the blue absorption component of the He I lines as well as in the Si IV 4089 emission line of HD 151932 is reported. Possible explanations for these variations are ... [more ▼]

The observation of variations in the blue absorption component of the He I lines as well as in the Si IV 4089 emission line of HD 151932 is reported. Possible explanations for these variations are addressed, and it is concluded that none is satisfactory. The possibility of a periodicity in the variations is briefly considered. [less ▲]

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See detailDefective in vitro gamma-interferon production in rheumatoid arthritis
Malaise, Michel ULiege; Franchimont, P.

in Arthritis and Rheumatism (1987), 30(2), 230-231

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See detailC3b receptor (CR1) on erythrocytes and the HLA-DR3 antigen
Malaise, Michel ULiege; Desoroux, Aline ULiege; Mahieu, P. et al

in Arthritis and Rheumatism (1986), 29(2), 300-301

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See detailContaminants in blood of infants on prolonged intravenous therapy.
François, B; Leyssens, L; Gerard, P et al

in Lancet (1986), 1

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See detailComplement activation during hemodialysis
Malaise, Michel ULiege; Lust, Catherine ULiege; Foidart, J. B. et al

in New England Journal of Medicine [=NEJM] (1985), 312(8), 514-515

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See detailSodium-Lithium countertransport in red cells
Krzesinski, Jean-Marie ULiege; Rorive, Georges ULiege

in New England Journal of Medicine [=NEJM] (1983), 309(16), 987-988

To the Editor : Woods et al. provide evidence for a decrease in the rate of sodium-lithium countertransport in red cells after hemodialysis, and suggest that this effect is related to the removal of a ... [more ▼]

To the Editor : Woods et al. provide evidence for a decrease in the rate of sodium-lithium countertransport in red cells after hemodialysis, and suggest that this effect is related to the removal of a plasma factor. They did not observe a difference in ouabain-dependent sodium efflux during hemodialysis, but this conclusion is based on data in only two patients. This latter observation disagrees with previous date, which demonstrated a decrease in the sodium-potassium pump activity in patients with chronic renal failure. We have studied the sodium exchange in red cells of 11 patients receiving hemodialysis. These date suggest that the modifications in the rate of ouabain-sensitive sodium efflux observed after hemodialysis may be related to a volume-dependent plasma factor and not only to a decrease in th concentration of a dialyzable factor; this factor may be similar to the "natriuretic digoxin-like factor" postulated by de Wardener and MacGregor as playing a part in primary hypertension. It is also possible that the effect observed by Woods et al. on sodium-lithium countertransport is linked to improvement of the sodium-pump activity. [less ▲]

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See detailThe Al/Mg abundance ratio in halo stars
Arpigny, Claude ULiege; Magain, Pierre ULiege

in Astronomy and Astrophysics (1983), 127

The Al to Mg abundance ratio is redetermined in two extreme metal-poor stars, HD 19445 and HD 140283, on the basis of accurate spectral material. It is found that: (1) one of the two lines used for the Al ... [more ▼]

The Al to Mg abundance ratio is redetermined in two extreme metal-poor stars, HD 19445 and HD 140283, on the basis of accurate spectral material. It is found that: (1) one of the two lines used for the Al abundance determination is blended by CH lines; (2) no anomalous difference appears between the hotter and the cooler star, both showing an Al overdeficiency; (3) the observations are in fair agreement with predictions from the theory of explosive carbon burning. [less ▲]

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See detailCrystallographic data for a penicillin receptor : exocellular DD-carboxypeptidase-transpeptidase from Streptomyces R61
Knox, James R.; DeLucia, Mary L.; Murthy, N. S. et al

in Journal of Molecular Biology (1979), 127(2), 217-218

A pencillin-sensitive enzyme, the exocellular DD-carboxypeptidase-transpeptidase from Streptomyces R61, has been crystallized from polyethylene glycol (Mr = 6000 to 7500) solution at pH 7•6. X-ray ... [more ▼]

A pencillin-sensitive enzyme, the exocellular DD-carboxypeptidase-transpeptidase from Streptomyces R61, has been crystallized from polyethylene glycol (Mr = 6000 to 7500) solution at pH 7•6. X-ray examination of the orthorhombic crystals shows the space group is P212121, with unit cell dimensions a = 51•1 Å, B = 67•4 Å, and C = 102•9 Å. With four molecules of molecular weight 38,000, the Å3/dalton ratio for the cell is 2•33. The crystals are stable to irradiation for 75 hours and are suitable for structure analysis to at least 2•4 Å resolution. The radius of gyration of the molecule in solution at pH 6.8 is 20.8 Å. [less ▲]

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See detailLes enfants aussi ont droit à la semaine de conq jours
de Landsheere, Gilbert ULiege

in New Directions for Institutional Research (1967)

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See detailForbidden FeIII-lines in celestial spectra
Edlén, B.; Swings, Polydore ULiege

in Observatory (The) (1939), 62

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See detailA propos du Vita Genovefea : quelques mots de réponse à M. Bruno Krusch
Kurth, Godefroid ULiege

in Revue d'Histoire Ecclésiastique (1920), XV, 3

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See detailA la rescousse des Six Cent : lettre à M. Henri Pirenne
Kurth, Godefroid ULiege

in Bulletin de la Classe des Lettres et des Sciences Morales et Politiques (1913)

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See detailUn règlement de comptes
Kurth, Godefroid ULiege

in Archives Belges (Belgisch Archief) (1900)

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See detailRéponse à M. A. Wauters : quelques mots sur les progrès de la toponymie en Belgique
Kurth, Godefroid ULiege

in Bulletin de la Classe des Lettres et des Sciences Morales et Politiques (1896), XXXI(3e série), 313

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