Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
Full Text
Peer Reviewed
See detailLes anomalies d'insertion placentaire
Chantraine, Frédéric ULg; Foidart, Jean-Michel ULg

in Gunaïkeia (2009), 14(4), 121-123

Detailed reference viewed: 84 (18 ULg)
Peer Reviewed
See detailAnomalies de l’expérience de soi dans la schizophrénie : Comparaison avec les représentations des proches
Englebert, Jérôme ULg; Lo Presti, Fanny

Poster (2016, January 20)

Notre objectif est de comparer les expériences (inter-)subjectives de personnes souffrant de schizophrénie avec la perception que leurs proches en ont. L'instrument de mesure utilisé est l'échelle EASE ... [more ▼]

Notre objectif est de comparer les expériences (inter-)subjectives de personnes souffrant de schizophrénie avec la perception que leurs proches en ont. L'instrument de mesure utilisé est l'échelle EASE (Évaluation des Anomalies de l’Expérience de Soi) qui permet, dans une orientation phénoménologique, une exploration semi-structurée en première personne des troubles de la conscience de soi. L'échantillon est composé de cinq personnes atteintes de schizophrénie et de cinq proches. Il a été demandé au patient de choisir comme « proche » la personne la plus significative pour lui. L’hypothèse centrale sur laquelle repose notre étude est qu’il existe une différence qualitative entre le discours du patient (perspective en première personne) et les représentations du proche (perspective en troisième personne). Les entrevues semi-structurées se sont déroulées individuellement, d’abord avec le patient, ensuite avec le proche. Les résultats de cette étude qualitative sont nombreux et suggèrent de nombreuses pistes d’analyse. L’une d’elle suggère notamment que les impressions des proches concernant le vécu (inter-)subjectif des patients dépendrait particulièrement de leur connaissance de la maladie de manière générale, de la qualité des échanges avec le patient mais aussi de leur regard/avis concernant la maladie. Nous observons que la communication est nettement plus présente chez les deux binômes de notre échantillon ayant le moins de différence entre les deux discours. De plus, ces deux binômes étaient également composés des deux patients les plus jeunes. Nous pourrions, dès lors, suggérer que les proches seraient plus attentifs au comportement du patient lors des premières phases de la maladie et que leurs démarches pour comprendre cette dernière soient également plus actives. [less ▲]

Detailed reference viewed: 58 (5 ULg)
See detailAnomalies de l’expérience de soi exprimées par le sujet schizophrène et par ses proches
Lo Presti, Fanny; Englebert, Jérôme ULg

Scientific conference (2015, November 19)

Detailed reference viewed: 23 (1 ULg)
Full Text
Peer Reviewed
See detailAnomalies des cellules de l'immunite naturelle et risque infectieux chez le patient diabetique
Moutschen, Michel ULg

in Revue Médicale de Liège (2005), 60(5-6, May-Jun), 541-4

This review addresses the recent litterature devoted to the risk of severe infections in patients with diabetes and to the potential influence of diabetes on the function of natural immunity. Although ... [more ▼]

This review addresses the recent litterature devoted to the risk of severe infections in patients with diabetes and to the potential influence of diabetes on the function of natural immunity. Although much controversy still exists regarding the incidence of infections in diabetic patients, several studies confirm that diabetes mellitus is associated with an increased severity and mortality in community acquired pneumonia. Furthermore, the risk of severe bacteremia (especially associated with Streptococcus pneumoniae) is higher in diabetic patients. Polynuclear neutrophils are clearly influenced by the diabetic state. On the one hand, their antimicrobial function is inhibited by hyperglycaemia, due to inhibition of G6PD or diversion of NADPH in the polyol pathway; on the other hand, the AGE/RAGE/NF-kappaB pathway involved in the pathogenesis of chronic complications of diabetes could also amplify inflammatory systemic manifestations associated with infections and play a role in the higher mortality rate observed in diabetic subjects with severe infections. These observations argue for the systematic vaccination of all diabetic patients against influenza and Streptococcus pneumoniae, for the reappraisal of diabetes as a significant pejorative risk factor in community acquired pneumonia and for intensive insulin therapy in all diabetic patients with severe infection. [less ▲]

Detailed reference viewed: 63 (15 ULg)
Full Text
Peer Reviewed
See detailAnomalies du metabolisme osseux chez les patients infectes par le HIV et traites par tritherapie
GIOT, Jean-Baptiste ULg; Franchimont, N.; Moutschen, Michel ULg

in Revue Médicale de Liège (2003), 58(3), 155-63

For several years already, a growing number of studies reports modifications in the bone metabolism among HIV-infected patients. Some of these studies, published even before the use of HAART, involved the ... [more ▼]

For several years already, a growing number of studies reports modifications in the bone metabolism among HIV-infected patients. Some of these studies, published even before the use of HAART, involved the infection itself. With the experience already available as concerns HAART, antiretroviral treatments (ART) seem however to be called into question. Data are divergent yet. Some studies tend to invalidate the collected data about the harmful role of HAART and prove the absence of effect or even the beneficial action of ART on bone. Moreover, the three important classes of ART are implied, even if the proteases inhibitors are most commonly charged. Pathogenic mechanism remain hypothetical. While the impact on morbidity seems to be weak for the time being, long-term repercussions are still unknown, in particular when children are concerned. In such conditions, it appears difficult to set up coherent politics of screening, prevention and treatment. Nevertheless beyond the divergences, the multifactorial character of alteration of HIV-infected patient's bone metabolism seems to be undeniable. The identification of the different parameters should in the future clarify the situation and enable the publishing of exact criteria of screening, prevention and treatment. [less ▲]

Detailed reference viewed: 47 (3 ULg)
Full Text
Peer Reviewed
See detailAnomalies et traitement de la cyclicité dans l'espèce bovine.
Hanzen, Christian ULg; Theron, Léonard ULg; Sterkendries, José

in Recueil des journées nationales 2008 (2008, May 29)

La génisse dispose à la naissance d’une réserve de 250 000 follicules. La majorité d’entre eux sont voués à l’atrésie. Un certain nombre sera recruté et poursuivra sa croissance jusque l’ovulation et donc ... [more ▼]

La génisse dispose à la naissance d’une réserve de 250 000 follicules. La majorité d’entre eux sont voués à l’atrésie. Un certain nombre sera recruté et poursuivra sa croissance jusque l’ovulation et donc l’expulsion d’un ovocyte mature. L’apparition aussi régulière et précoce que possible de vagues de recrutement et de croissance folliculaire après la naissance ou le vêlage, constitue un prerequis indispensable à l’obtention d’une fertilité et donc d’une fécondité normale. Le cas non échéant, il en résultera de l’anoestrus. Ce dernier sera dit physiologique, fonctionnel, pathologique ou encore de détection selon son moment d’apparition après le naissance ou au cours du post-partum. L’anoestrus sera qualifié de pathologique fonctionnel en l’absence d’activité cyclique régulière au-delà du 14ème mois suivant la naissance ou le 2ème mois suivant le vêlage. De même, et le plus souvent au cours du post-partum, il sera dit pathologique lorsqu’il se manifeste par l’apparition d’un kyste ovarien. L’alimentation constitue un des principaux facteurs responsables de l’anoestrus pathologique fonctionnel qu’il soit pubertaire ou du post-partum, une balance énergétique négative modifiant la libération optimale de la LH, responsable de la croissance terminale du follicule. Le caractère allaitant ou lactant représente un second facteur essentiel. Le traitement hormonal de l’anoestrus pathologique fonctionnel consiste en l’administration de progestagènes (progestérone, norgestomet) par voie vaginale (PRID, CIRD) ou sous-cutanée (Crestar). Ces traitements peuvent se compléter par l’injection en début de traitement de GnRH et en fin de traitement par celle d’eCG ou de PGF2a. L’adaptation des apports RÉSUMÉ 69 alimentaires aux besoins de croissance ou de production laitière ou le changement de la stratégie d’allaitement constituent également des moyens de nature à réduie l’impact de cet anoestrus. Le kyste ovarien résulte d’une absence d’ovulation du follicule en croissance. Il en résulte la persistance sur l’ovaire d’une structure plus (kyste folliculaire) ou moins (kyste folliculaire lutéinisé) dépressible de diamètre supérieur à 24 mm en l’absence de toute strctue lutéale. Ses causes sont diverses et relèvent d’altérations hormonales du complexe hypothalamohypophysaire, d’un dysfonctionnement de la paroi folliculaire mais également de facteurs propres à l'animal (âge, production laitière, génétique, pathologies du post-partum…) et à son environnement (nutrition, saison, stress…). Classiquement le kyste folliculaire et le kyste folliculaire lutéinisé sont traités respectivement par de la GNRH et par une PGF2a. D’autres protocoles associant ces deux hormones ou à base de progstagènes ont fait l’objet ces dernières années d’essais cliniques. [less ▲]

Detailed reference viewed: 216 (18 ULg)
Full Text
See detailAnomalies et traitements de la cyclicité dans l’espèce bovine
Hanzen, Christian ULg

Conference given outside the academic context (2009)

Detailed reference viewed: 50 (3 ULg)
Full Text
Peer Reviewed
See detailAnomalies hypophysaires chez le sujet age avec insuffisance renale chronique
Valdes Socin, Hernan Gonzalo ULg; Magis, Delphine ULg; Betea, Daniela ULg et al

in Revue Médicale de Liège (2002), 57(6), 375-381

Chronic renal failure (CRF) in the elderly is a cause of multiple endocrine dysfunctions. The three most common pituitary axes involved are the thyrotrope, lactotrope and gonadotrope axes. Thyroid ... [more ▼]

Chronic renal failure (CRF) in the elderly is a cause of multiple endocrine dysfunctions. The three most common pituitary axes involved are the thyrotrope, lactotrope and gonadotrope axes. Thyroid dysfunction may be the consequence of thyroid or pituitary failure. Hyperprolactinemia results in gonadal failure and is present in 30% of patients. Early presentation of menopause and andropause are common in patients with CRF. Sexual hormonal replacement is controversial and must be individually tailored. We propose a systematic screening in the elderly with CRF: determination of TSH, TPO antibodies and cervical palpation, measures of PRL, LH, FSH and testosterone to explore lactotrope and gonadotrope axis. [less ▲]

Detailed reference viewed: 172 (7 ULg)
Full Text
See detailAnomalies in the earliest spectral types
Swings, Polydore ULg

in Annales d'astrophysique (1948), 11(4), 228-246

Suggestions for further work on the classification of Wolf-Rayet stars are made, especially in relation with the anomalies presented by certain nuclei of planetary nebulae. In the Of-stars, in which the ... [more ▼]

Suggestions for further work on the classification of Wolf-Rayet stars are made, especially in relation with the anomalies presented by certain nuclei of planetary nebulae. In the Of-stars, in which the spectra are superpositions of typical observations O-stars and shell lines, remarkable differences occur in the relative intensities of various shell lines. The relations between X-and Of-stars are discussed. The peculiar intensities presented by certain transitions of various atoms in anomalous stars of early type are examined. The physical factors (dilution, fluorescence, departure from black body distribution, chemical composition) affecting the relative intensities of various transitions within one atom, and of various atoms relative to each other, are discussed. [less ▲]

Detailed reference viewed: 12 (2 ULg)
See detailAnomalies métaboliques chez l'acromégale
Beckers, Albert ULg

Scientific conference (2003, November)

Detailed reference viewed: 8 (0 ULg)
Full Text
Peer Reviewed
See detailLes anomalies morphologiques et metaboliques liees aux traitements antiretroviraux
Debruyn, X.; Nkoghe, D.; Leonard, Philippe ULg et al

in Revue Médicale de Liège (2002), 57(1), 23-8

The long term use of antiretroviral therapy is associated with metabolic and morphological abnormalities named lipodystrophy. The understanding of its epidemiology is in progress. NRTIs and Pls are ... [more ▼]

The long term use of antiretroviral therapy is associated with metabolic and morphological abnormalities named lipodystrophy. The understanding of its epidemiology is in progress. NRTIs and Pls are involved in the origin of these abnormalities. So, NRTIs inhibit mitochondrial gamma polymerase and induce body fat distribution disorders. PIs interfere with lipid metabolism, leading to hyperlipidaemia and insulin resistance symptomatology. The diagnosis is made by clinical (far wasting or accumulation, or mixed syndrome) and biological signs (hyperlipidaemia, hyperglycaemia, hyperlactacidaemia). Radiological exams can quantify morphological abnormalities. The management consists in drug substitution, diet and exercise, and corrective drugs. Plastic surgery can be useful. [less ▲]

Detailed reference viewed: 52 (1 ULg)
Full Text
Peer Reviewed
See detailAnomalies of tolerance in glucose in schizophrenic patients treated with antipsychotics of second generation: 3 months prospective comparative study
Scheen, André ULg; De Hert, M.; Hanssens, L. et al

in Diabetes & Metabolism (2007, March), 33(Sp. Iss. 1), 129

Detailed reference viewed: 22 (3 ULg)
Full Text
See detailAnomalous 14N/15N ratio in comets 122P/1995 S1 (de Vico) and 153P/2002 C1 (Ikeya-Zhang)
Arpigny, Claude ULg; Cochran, A. L.; Jehin, Emmanuel ULg et al

in Bulletin of the American Astronomical Society (2003, May 01), 35

High-resolution (R 60,000) spectra of the Halley-type comet 122P/1995 S1 de Vico (Period 74 years) and the ``intermediate-period" comet 153P/2002 C1 Ikeya-Zhang (P 370 yr) were obtained with the 2DCoude ... [more ▼]

High-resolution (R 60,000) spectra of the Halley-type comet 122P/1995 S1 de Vico (Period 74 years) and the ``intermediate-period" comet 153P/2002 C1 Ikeya-Zhang (P 370 yr) were obtained with the 2DCoude spectrograph at the 2.7-m Harlan J. Smith telescope of the McDonald Observatory. These comets were within 1 AU from the Sun (0.66 and 0.92 AU, respectively). The spectra display CN (0,0) bands indicating an anomalous [SUP]14[/SUP]N/[SUP]15[/SUP]N isotope ratio, in the sense that it is close to half the value in Earth's atmosphere (the so-called ``Solar system value") and about half that obtained in comet Hale-Bopp from sub-millimeter measurements on HCN, generally believed to be the main parent of CN. Similar conclusions had been reached for C/1995 O1 (Hale-Bopp), an ``old long-period", and for C/2000 WM1 (LINEAR), a ``young long-period" comet. As suggested by Arpigny et al. (2003), this apparent abundance anomaly points towards the existence of other unknown parent(s) of CN, with an even higher [SUP]15[/SUP]N excess. Organic compounds like those found in interplanetary dust particles (IDPs) are good candidates. The similarity between comets of different dynamical ages is pointed out. 1 Research Director FNRS (Belgium) 2 Research Associate FNRS (Belgium) [less ▲]

Detailed reference viewed: 16 (2 ULg)
Full Text
Peer Reviewed
See detailThe Anomalous 14N/15N Ratio in Comets 122P/1995 S1 (de Vico) and 153P/2002 C1 (Ikeya-Zhang)
Jehin, Emmanuel ULg; Manfroid, Jean ULg; Cochran, A. L. et al

in Astrophysical Journal (2004), 613(Letters), 161-164

High-resolution (R~60,000) spectra of the CN B[SUP]2[/SUP]Sigma[SUP]+[/SUP]-X[SUP]2[/SUP]Sigma[SUP]+[/SUP] (0, 0) band (near 3880 Å) in the Halley-type comet 122P/1995 S1 de Vico (with a period of 74 yr ... [more ▼]

High-resolution (R~60,000) spectra of the CN B[SUP]2[/SUP]Sigma[SUP]+[/SUP]-X[SUP]2[/SUP]Sigma[SUP]+[/SUP] (0, 0) band (near 3880 Å) in the Halley-type comet 122P/1995 S1 de Vico (with a period of 74 yr) and the ``intermediate-period'' comet 153P/2002 C1 Ikeya-Zhang (P~370 yr) were obtained with the 2dcoudé spectrograph at the 2.7 m Harlan J. Smith telescope of the McDonald Observatory. The comets were within 1 AU from the Sun (0.66 and 0.92 AU, respectively) at the time of the observations. While the measured [SUP]12[/SUP]C/[SUP]13[/SUP]C isotope ratios of both comets (90+/-10 and 90+/-25, respectively) are in very good agreement with the solar system value, the [SUP]14[/SUP]N/[SUP]15[/SUP]N ratios (140+/-20 and 170+/-50, respectively) are approximately half the value in Earth's atmosphere. The similarity is striking between these ratios and those obtained recently for two other long-period Oort Cloud comets, C/1995 O1 (Hale-Bopp) and C/2000 WM1 (LINEAR). While these optical determinations of [SUP]14[/SUP]N/[SUP]15[/SUP]N are consistent with each other, they disagree with those obtained in comet Hale-Bopp from submillimeter measurements of HCN, generally believed to be the main parent of CN. This puzzling difference points toward the existence of (an)other unknown parent(s) of CN, with an even higher [SUP]15[/SUP]N excess. Organic compounds like those found in interplanetary dust particles are good candidates. [less ▲]

Detailed reference viewed: 24 (1 ULg)
Full Text
Peer Reviewed
See detailAnomalous behavior of the irreversible magnetization and time relaxation in YBa(2)Cu(3)O(7) single crystals with splayed tracks
Silhanek, Alejandro ULg; Niebieskikwiat, D.; Civale, L. et al

in Physical Review. B : Condensed Matter (1999), 60(18), 13189-13195

We have studied the angular dependence of the irreversible magnetization and its time relaxation in YBa(2)Cu(3)O(7) Single crystals with one or two families of columnar defects inclined with respect to ... [more ▼]

We have studied the angular dependence of the irreversible magnetization and its time relaxation in YBa(2)Cu(3)O(7) Single crystals with one or two families of columnar defects inclined with respect to the c axis. At high magnetic fields, the magnetization shows the usual maximum centered at the mean tracks' orientation and an associated minimum in the normalized relaxation rate. In contrast, at low fields we observe an anomalous local minimum in the magnetization and a maximum in the relaxation rate. We present a model to explain this anomaly based on the slowing down of the creep processes arising from the increase of the vortex-vortex interactions as the applied field is tilted away from the mean tracks' direction. [S0163-1829(99)11841-1]. [less ▲]

Detailed reference viewed: 11 (5 ULg)
Full Text
See detailAnomalous behaviour in the diffusion of polyethylene oxide through dialysis membrane
Vignisse, Julie ULg; Gustin, Audrey; Lespineux et al

Poster (2009, April 01)

Dialysis is a common technique adopted in biochemistry to purify biopharmaceutical drugs. This methodology is also of interest in macromolecular chemistry and pharmaceutical nanotechnology in order to ... [more ▼]

Dialysis is a common technique adopted in biochemistry to purify biopharmaceutical drugs. This methodology is also of interest in macromolecular chemistry and pharmaceutical nanotechnology in order to purify synthetic macromolecules and nanodrug carriers designed for drug delivery purposes. However, based on their original applications, the diffusion characteristic of the dialysis membrane is given in respect to the diffusion rate of globular proteins. So the diffusion capacity is function of molecular weight cut-off, i.e. corresponding to the maximum molecular weight of a globular macromolecule to be able to cross the membrane. The diffusion kinetics of synthetic macromolecules is expected to differ significantly from globular proteins due to at least the following differences : Specific relationship between hydrodynamic diameter and molecular weight, Flexibility Ionic density Solubility/miscibility/adsorption behaviour with the dialysis membrane Polymer chain entanglement above a critical concentration. In view to validate the application of this technique to purify synthetic macromolecules, we have compared the diffusion ability of neutral polyethyetylene oxide (PEO) standards or poly(dimethyl-aminoethyl-methacrylate) (PMADAM) to protein standards (human insulin and ovalbumin). [less ▲]

Detailed reference viewed: 36 (2 ULg)
Full Text
Peer Reviewed
See detailAnomalous Behaviour of a Protein During Sds/Page Corrected by Chemical Modification of Carboxylic Groups
Matagne, André ULg; Joris, Bernard ULg; Frère, Jean-Marie ULg

in Biochemical Journal (1991), 280((Pt 2)), 553-6

The 29,000-Mr Actinomadura R39 beta-lactamase exhibited a remarkably low electrophoretic mobility on SDS/PAGE, yielding an Mr value almost twice that computed from the corresponding gene sequence. We ... [more ▼]

The 29,000-Mr Actinomadura R39 beta-lactamase exhibited a remarkably low electrophoretic mobility on SDS/PAGE, yielding an Mr value almost twice that computed from the corresponding gene sequence. We showed that chemical modification of the carboxylic groups of glutamic acid and aspartic acid residues restored a normal electrophoretic mobility and that the anomalous behaviour of that protein on SDS/PAGE was due to its very large negative charge at neutral pH. We also compared the behaviour of the same enzyme on gel filtration in the presence of SDS with those of other class A beta-lactamases (Mr approx. 30,000). These experiments suggested that the very low electrophoretic mobility of the Actinomadura R39 beta-lactamase upon SDS/PAGE was more probably due to a low degree of SDS binding rather than to an unusual shape of the SDS-protein complex. [less ▲]

Detailed reference viewed: 13 (2 ULg)
Full Text
Peer Reviewed
See detailANOMALOUS ELECTRON HEAT-TRANSPORT DRIVEN BY LOW-FREQUENCY ELECTROMAGNETIC TURBULENCE
Thoul, Anne ULg; Similon, P.L.; Sudan, R.N.

in Physical Review Letters (1987), 59(13), 1448-1451

We consider the anomalous electron and heat transport in a tokamak plasma. The electrons are described by the nonlinear drift-kinetic equation. We analyze transport through the averaged response function ... [more ▼]

We consider the anomalous electron and heat transport in a tokamak plasma. The electrons are described by the nonlinear drift-kinetic equation. We analyze transport through the averaged response function in the presence of drift-Alfvén wave turbulence. In contrast to recent findings by Terry, Diamond, and Hahm, we conclude that magnetic fluctuations lead to a substantial transport of both parallel and perpendicular energies. The latter, previously neglected, is found to be significant and of the order of the test-particle diffusion. [less ▲]

Detailed reference viewed: 6 (1 ULg)