References of "Scientific journals"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailAn improved preparation method of benzyl and thenyl triphenylphosphonium salt
Zhang, Jian-Xin; Dubois, Philippe ULg; Jérôme, Robert ULg

in Synthetic Communications (1996), 26(16), 3091-3095

New benzyl and thenyl phosphonium salts have been prepared by an improved method in solution from the parent alcohols and triphenylphosphine hydrobromide. Benzyl-type alcohols containing a tertiary amine ... [more ▼]

New benzyl and thenyl phosphonium salts have been prepared by an improved method in solution from the parent alcohols and triphenylphosphine hydrobromide. Benzyl-type alcohols containing a tertiary amine can also be converted within high yields to phosphonium salts by removing the formed water by azeotropic distillation. Solvent (methylene chloride, chloroform and acetonitrile) and temperature have been chosen in close relation to the alcohol reactivity. Purification is straightforward and yields are relatively high. [less ▲]

Detailed reference viewed: 59 (2 ULg)
Peer Reviewed
See detailSeduzione borghese e cultura dell'artificio. Femmes fatales in Oriani e Chelli
Curreri, Luciano ULg

in Italian Quarterly (1996), 129-130

Detailed reference viewed: 8 (0 ULg)
Full Text
Peer Reviewed
See detailLanguage in adults with Down syndrome
Rondal, Jean-Adolphe ULg; Comblain, Annick ULg

in Down's Syndrome, Research and Practice : The Journal of the Sarah Duffen Centre (1996), 4(1), 3-14

In this paper, we will try to supply at least a partial answer to the three following questions. First, what language levels are reached by adults with Down syndrome? Second, is there progress in language ... [more ▼]

In this paper, we will try to supply at least a partial answer to the three following questions. First, what language levels are reached by adults with Down syndrome? Second, is there progress in language or some aspects of it beyond adolescence and during the adult years? This question is related to the issue of a critical period for language development raised by Eric Lenneberg (1967). Third, what is the effect of ageing on the language of persons with Down syndrome, including those who develop Alzheimer disease in old age? [less ▲]

Detailed reference viewed: 44 (2 ULg)
Full Text
Peer Reviewed
See detailCombined enzymatic synthesis of nucleotide (deoxy) sugars from sucrose and nucleoside monophosphates
Zervosen, Astrid ULg; Stein, Andreas; Adrian, Holger et al

in Tetrahedron (1996), 52(7), 2395-2404

Abstract: The synthesis of NDP-glucose 3a-d (N= A, C, U, dU) with sucrose synthase B was combined with the enzymatic synthesis of nucleoside diphosphates 2a-d from their corresponding nucleoside ... [more ▼]

Abstract: The synthesis of NDP-glucose 3a-d (N= A, C, U, dU) with sucrose synthase B was combined with the enzymatic synthesis of nucleoside diphosphates 2a-d from their corresponding nucleoside monophosphates la-d by different kinases A. Further combination with recombinant dTDP-glucose 4,6-dehydratase D enabled us to synthesize dUDP-6-deoxy-alpha-D-xylo-4-hexulose 5 from ld on a preparative scale. By using the repetitive batch technique the enzymatic syntheses of nucleotide (deoxy) sugars 3a-d, 5 could be realized on a 0.1 - 0.5 g scale. [less ▲]

Detailed reference viewed: 27 (5 ULg)
Peer Reviewed
See detailAlteration of the endocrinological status of growing calves by a glucocorticoid treatment.
Massart, Serge; Bertozzi, Carlo; Prandi, A. et al

in Journal of Animal Science (1996), 74(1), 230

Detailed reference viewed: 5 (0 ULg)
Peer Reviewed
See detailRole of the metallothioneins in metal regulation by the guillemot Uria aalge
Bouquegneau, Jean-Marie ULg; Debacker, Virginie ULg; Gobert, Sylvie ULg et al

in Comparative Biochemistry and Physiology. C : Comparative Pharmacology and Toxicology (1996), 113C(2), 135-139

Guillemots, like other seabird species living in the North Sea, appear to be heavily contaminated by copper. Metallothioneins are present in both liver and kidney but, at least in the specimens stranded ... [more ▼]

Guillemots, like other seabird species living in the North Sea, appear to be heavily contaminated by copper. Metallothioneins are present in both liver and kidney but, at least in the specimens stranded along the Belgian coast, fail to maintain constant the copper, zinc and cadmium load of the high molecular weight soluble proteins of both organs, stressing the potential toxic role of these metals, mainly copper. [less ▲]

Detailed reference viewed: 65 (16 ULg)
Full Text
Peer Reviewed
See detailHomogeneous Lyapunov Functions and Necessary Conditions for Stabilization
Sepulchre, Rodolphe ULg; Aeyels, D.

in Journal of mathematics for control, signal and systems (1996), 9(1), 34-58

We provide necessary conditions for the stabilization of nonlinear control systems with the additional requirement that a time-invariant homogeneous Lyapunov function exists for the closed-loop system.

Detailed reference viewed: 25 (2 ULg)
Full Text
Peer Reviewed
See detailThe current situation of wild mammals in Belgium: an outline
Libois, Roland ULg

in Hystrix: the Italian Journal of Mammalogy (1996), 8(1-2), 35-41

The distrbution of the wild mammals of Belgium has been intensively stutied during the years '78-81'. It was the first time that such a work was undertaken in Belgium and could lead to a better ... [more ▼]

The distrbution of the wild mammals of Belgium has been intensively stutied during the years '78-81'. It was the first time that such a work was undertaken in Belgium and could lead to a better understanding of the current status of the different species. Conservation measures were olso proposed to the political authorities who thereafter edicted a legal protection of the most vulnerable species. Unfortunately, habitat protection is rather unachieved and the situation of the most endangered species is still getting worse. [less ▲]

Detailed reference viewed: 56 (4 ULg)
Peer Reviewed
See detailSuppression of Voluntary Temporalis Muscle Activity by Peripheral Limb Stimulations in Healthy Volunteers, Migraineurs and Tension-Type Headache Sufferes
Wang, W.; Schoenen, Jean ULg

in Functional Neurology (1996), 11(6, Nov-Dec), 307-15

We studied the inhibition of voluntary temporalis muscle activity after stimulations of extracephalic cutaneous or mixed nerves in 23 healthy volunteers, 29 patients suffering from migraine without aura ... [more ▼]

We studied the inhibition of voluntary temporalis muscle activity after stimulations of extracephalic cutaneous or mixed nerves in 23 healthy volunteers, 29 patients suffering from migraine without aura, 24 from episodic and 42 from chronic tension-type headache. Two successive EMG suppressions were induced bilaterally after stimulating at 40 mA the index finger or the median nerve, but not after stimulations of the sural or peroneal nerves. They differed from those obtained after labial commissure stimulation at 20 mA, i.e. the classic temporalis silent periods ES1 and ES2. Overall prevalence of index- (3%) and median nerve-induced (16%) early suppression was much lower than that of labial-induced ES1 (100%); prevalence of index-induced late suppression (index-"ES2") was 62% and that of median-"ES2" 48%, compared with 97% for labial-ES2. Latency and duration of index-/median-"ES2" were not significantly different between groups. Index-"ES2" occurred significantly more often in migraineurs (83%) than in controls (48%) suggesting that the spino-bulbar pathways involved in index-/median-"ES2" are hyperexcitable in migraine. [less ▲]

Detailed reference viewed: 13 (0 ULg)
Full Text
Peer Reviewed
See detailGranuloma tuberculoide post-herpético en un paciente con leucemia linfocítica crónica
Nikkels, Arjen ULg; Arrese Estrada, Jorge ULg; Pierard, Gérald ULg

in Medicina Cutanea Ibero-Latino-Americana (1996), 24

Detailed reference viewed: 43 (0 ULg)
See detailDe wegen van de intellectueel. Paul van Ostaijen en de massa
Spinoy, Erik ULg

in Onze Alma Mater (1996), 50(4), 482-501

This article reflects on the way Van Ostaijen constructs his identity as a petty bourgeois intellectual, by forcefuly rejecting the ignorance of the masses.

Detailed reference viewed: 20 (0 ULg)
Peer Reviewed
See detailSuccessful Tricuspid Valve Replacement and Pulmonary Valvulotomy for Carcinoid Heart Disease
DEFRAIGNE, Jean ULg; Jerusalem, O.; Soyeur, Daniel ULg et al

in Acta Chirurgica Belgica (1996), 96(4), 170-6

A case of successful tricuspid valve replacement with a mechanical prosthesis and pulmonary valvulotomy for carcinoid heart disease is reported. The patient was a 61 years old women. The primary tumor was ... [more ▼]

A case of successful tricuspid valve replacement with a mechanical prosthesis and pulmonary valvulotomy for carcinoid heart disease is reported. The patient was a 61 years old women. The primary tumor was in the terminal ileum. Liver metastasis and carcinoid syndrome were present since 8 years. After cardiac surgery, the patient survived 38 months and late death was related to disseminated metastasis. Even in case of metastasis, carcinoid tumor is slow growing. Without cardiac operation for correction of valvular lesions, terminal symptoms and death may often be related to cardiac operation for correction of valvular lesions, terminal symptoms and death may often be related to cardiac failure rather than to tumoral growth. Thus, even in presence of metastasis, cardiac surgery may be mandatory to improve both quality of life and survival. [less ▲]

Detailed reference viewed: 6 (0 ULg)
Full Text
Peer Reviewed
See detailNew bisphosphonates for the treatment of osteoporosis : concerns and hopes
Reginster, Jean-Yves ULg

in Revue du Rhumatisme (English ed.) (1996), 63(7-8), 461-464

Detailed reference viewed: 5 (1 ULg)
Full Text
Peer Reviewed
See detailCloning of choriocarcinoma cells shows that invasion correlates with expression and activation of gelatinase A
Crescimanno, C.; Foidart, Jean-Michel ULg; Noël, Agnès ULg et al

in Experimental Cell Research (1996), 227

Implantation and placental development are dependent upon trophoblast invasion of the endometrium. While the villous trophoblast does not display invasive behavior, the extravillous cytotrophoblast is ... [more ▼]

Implantation and placental development are dependent upon trophoblast invasion of the endometrium. While the villous trophoblast does not display invasive behavior, the extravillous cytotrophoblast is highly invasive. By cloning BeWo choriocarcinoma cells, we have isolated two distinct clones that share similarities with villous and extravillous cytotrophoblasts. When cultured at the surface of a type I collagen gel, BeWo MC-1 cells were not invasive, whereas BeWo MC-2 cells rapidly invaded this matrix. When injected subcutaneously in nude mice, BeWo MC-1 cells developed a localized tumor and BeWo MC-2 cells developed larger tumors with micrometastases. Gelatinase A expression and minute amounts of gelatinase B were detected in the parental cell line and in both clones. However, the parental and the BeWo MC-2 cells secreted 5- to 10-fold more gelatinase A than the BeWo MC-1 cells. Laminin and matrigel stimulated the production of gelatinase A in BeWo MC-2 cells. Type I collagen promoted the conversion of the 72-kDa progelatinase A in an active enzyme only in parental BeWo and in BeWo MC-2 cells. These clones provide an interesting model for studying the complex mechanisms regulating implantation as well as the controlled invasiveness during implantation compared to tumor invasion. [less ▲]

Detailed reference viewed: 7 (0 ULg)
Full Text
Peer Reviewed
See detailTaurine increases in the nucleus accumbens microdialysate after acute ethanol administration to naive and chronically alcoholised rats
Dahchour, Abdelkhader; Quertemont, Etienne ULg; De Witte, Philippe

in Brain Research (1996), 735

The extracellular changes of amino acids glutamate, taurine and GABA in the nucleus accumbens of freely moving rats were estimated using the microdialysis technique following acute and chronic ethanol ... [more ▼]

The extracellular changes of amino acids glutamate, taurine and GABA in the nucleus accumbens of freely moving rats were estimated using the microdialysis technique following acute and chronic ethanol injections (1, 2, and 3 g/kg body weight). Compared to baseline values, taurine increased by 154%, 142% and 162%, 20 min after the acute injection of, respectively, 1, 2 and 3 g/kg body weight ethanol, while 40 min after ethanol injection, taurine had increased by 124%, 146% and 168%. No changes in either glutamate or GABA were detected at any time points assayed. In the rats which had received chronic ethanol administration prior to a further acute ethanol injection (1, 2, and 3 g/kg body weight), taurine increased by 138%, 144% and 180%, 20 min after the ethanol injection, and at 40 min post ethanol injection taurine had increased by 134%, 160% and 158%, compared to the basal baseline value. No significant changes were observed in either glutamate or GABA microdialysate content in these chronic studies. The biological role played by taurine after acute ethanol injection in the nucleus accumbens remains unclear but may be associated with a yet, undefined mechanism, in reducing the cytotoxicity of ethanol. [less ▲]

Detailed reference viewed: 32 (1 ULg)
Full Text
Peer Reviewed
See detailInteraction Of The Macrolide Azithromycin With Phospholipids .2. Biophysical And Computer-Aided Conformational Studies
Montenez, Jp.; Vanbambeke, F.; Piret, J. et al

in European Journal of Pharmacology (1996), 314(1-2), 215-27

In a comparison paper, we show the azithromycin causes a lysosomal phospholipidosis in cultured cells, binds in vitro to negatively charged bilayers without causing aggregation or fusion, and inhibits ... [more ▼]

In a comparison paper, we show the azithromycin causes a lysosomal phospholipidosis in cultured cells, binds in vitro to negatively charged bilayers without causing aggregation or fusion, and inhibits lysosomal phospholipase A1. In this paper, we show that azithromycin decreases the mobility of the phospholipids in negatively charged liposomes (using 31P nuclear magnetic resonance) and that it increases the fluidity of the acyl chains close to the hydrophilic/hydrophobic interface, but not deeper into the hydrophobic domain (assessed by measuring the fluorescence polarization of trimethylammonium-diphenylhexatriene and diphenyhexatriene, respectively). Computer-aided conformational analysis of mixed monolayers of azithromycin and phosphatidylinositol shows that the drug can be positioned largely in the hydrophobic domain, but close to the interface, with the macrocycle facing the C1 of the fatty acids (allowing the N9a endocyclic tertiary amine to interact with the phospho-groups), the cladinose located on the hydrophobic side of the lipid/water interface and the desosamine projected into the hydrophobic domain. This position is consistent with the experimental data. Analysis of virtual molecules shows that this unanticipated behavior to the shielding of the ionizable N3' amino-group in the desosamine by methyl-groups, and to the wide dispersion of hydrophobic domains all over the molecule. The interaction of azithromycin with phospholipids may account for some of its unusual pharmacokinetic properties and for its potential to cause lysosomal phospholipidosis. [less ▲]

Detailed reference viewed: 18 (0 ULg)
Full Text
Peer Reviewed
See detailReconnaissance of the general circulation of the North-Western European Continental Shelf by means of a three-dimensional turbulent closure model
Delhez, Eric ULg

in Earth-Science Reviews (1996), 41(1-2), 3-29

The general circulation of the North-Western European Continental Shelf is investigated by means of a three-dimensional macroscale mathematical model. Results corresponding to typical winter and summer ... [more ▼]

The general circulation of the North-Western European Continental Shelf is investigated by means of a three-dimensional macroscale mathematical model. Results corresponding to typical winter and summer conditions are described in detail. Prominent features are explained from a dynamic point of view by referring to the main forcing factors of the macroscale circulation on the North-Western European Continental Shelf: seasonal mean wind stress and atmospheric pressure, large a scale sea surface slope, non-linear interactions of the higher frequency processes and density differences. The role of the bottom topography is also highlighted. The largest seasonal variations are mainly due to the occurrence of a thermal stratification in summer over large parts of the shelf. In such conditions, there is only a weak interaction between the surface and bottom layers that have therefore significantly different dynamics. [less ▲]

Detailed reference viewed: 22 (4 ULg)
Full Text
Peer Reviewed
See detailPiroxicam fails to reduce myocellular enzyme leakage and delayed onset muscle soreness induced by isokinetic eccentric exercise.
Croisier, Jean-Louis ULg; Camus, G.; Monfils, T. et al

in Mediators of Inflammation (1996), 5(3), 230-4

To test the hypothesis that delayed onset muscular soreness (DOMS) following intense eccentric muscle contraction could be due to increased production of prostaglandin E(2) (PGE(2)), ten healthy male ... [more ▼]

To test the hypothesis that delayed onset muscular soreness (DOMS) following intense eccentric muscle contraction could be due to increased production of prostaglandin E(2) (PGE(2)), ten healthy male subjects were studied. Using a double-blind randomized crossover design, each subject performed two isokinetic tests separated by a period of at least 6 weeks: once with placebo, and once with piroxicam (Feldene((R))). They were given one capsule containing either placebo or piroxicam (20 mg) per day for 6 days with initial doses given starting 3 days prior to isokinetic testing. Exercise consisted of eight stages of five maximal contractions of the knee extensor and flexor muscle groups of both legs separated by 1 min rest phases, on a Kin Trex device at 60( degrees )/s angular velocity. The subjective presence and intensity of DOMS were evaluated using a visual analogue scale immediately after, and 24 and 48 h after each test. The mean plasma concentration of PGE(2) measured at rest and after exercise was significantly lower in the group treated with piroxicam (p < 0.05). However, statistical analysis (two-way ANOVA test) revealed that exercise did not cause any significant change of mean plasma PGE(2) over time in either of the two groups. Eccentric work was followed by severe muscle pain in extensor and flexor muscle groups. Maximal soreness was noted 48 h postexercise. Serum creatine kinase activity and the serum concentration of myoglobin increased significantly, and reached peak values 48 h after exercise in both experimental conditions (p < 0.001). By paired t-test, it appeared that there were no significant differences in the serum levels of these two markers of muscle damage between the two groups at any time point. We conclude that: (1) oral administration of piroxicam fails to reduce muscle damage and DOMS caused by strenuous eccentric exercise; and (2) the hypothetical role of increased PGE(2) production in eccentric exercise-induced muscle damage, DOMS, and reduced isokinetic performance is not substantiated by the present results. [less ▲]

Detailed reference viewed: 62 (8 ULg)
Peer Reviewed
See detailHyperfine structure of infrared Al II lines
Palmeri, P.; Biémont, Emile ULg

in Journal of Physics : B Atomic Molecular & Optical Physics (1996), 29

Detailed reference viewed: 5 (3 ULg)
Peer Reviewed
See detailCarotid Surgery in Octogenarians: Is It Worthwhile?
VAN DAMME, Hendrik ULg; Lacroix; Desiron, Quentin ULg et al

in Acta Chirurgica Belgica (1996), 96(2), 71-7

Controversy surrounds the role of carotid endarterectomy in octogenarians. Although the prognosis of severe degree carotid stenosis is more ominous in the elderly, operative risk seems more important in ... [more ▼]

Controversy surrounds the role of carotid endarterectomy in octogenarians. Although the prognosis of severe degree carotid stenosis is more ominous in the elderly, operative risk seems more important in the aged. To evaluate the presumed detrimental effect of advanced age on the mortality-morbidity of carotid endarterectomy, the authors reviewed their common experience with carotid surgery in patients aged 80 years or more. From 1980 to 1994, 129 octogenarians were operated on for occlusive carotid artery disease in two university hospitals. The data for these patients, 80 years of age and older (group 1) are compared to these for a large middle age group (less than 80 years) (group 2) operated by the same surgeons during that period. The baseline characteristics of both groups were similar, except for smoking, diabetes and previous myocardial revascularization, more prevalent in the younger age group. In the elderly group prophylactic surgery for asymptomatic stenosis was done in 36%, versus 40% of the middle aged patients, and for stroke in evolution in 8% versus 4% (p < 0.05). The perioperative stroke rate was 0.8% in the group older than 80 years, compared to 1.2% for non octogenarians (NS). The operative mortality was similar for both age groups (2.3 and 1.5 respectively). The long-term results gave a similar outlook for both age groups. The 5-year stroke-free rate reached 89% for group 1 versus 91% for group 2. The 5-year survival rate, however, was less for the elderly patients (47% versus 77%, mean follow-up periods of 30 and 49 months). These results suggest that carotid endarterectomy can be safely done in elderly patients, with a similar risk/benefit ratio as for the younger patients. Advanced age, by itself, is not to be considered as contraindication to carotid surgery. [less ▲]

Detailed reference viewed: 4 (0 ULg)
Full Text
Peer Reviewed
See detailImprovement in the inflammatory aspect of androgenetic alopecia. A pilot study with an antimicrobial lotion
Pierard, Gérald ULg; Pierard-Franchimont, Claudine ULg; Tassoudji, Nazli ULg et al

in Journal of Dermatological Treatment (1996), 7

Androgenetic alopecia (AGA) is a common yet poorly understood condition. In particular, the significance of inflammatory cells close to the infrainfundibulum of transitional hairs remains obscure. This ... [more ▼]

Androgenetic alopecia (AGA) is a common yet poorly understood condition. In particular, the significance of inflammatory cells close to the infrainfundibulum of transitional hairs remains obscure. This study was conducted in 20 men who used a lotion containing the antimicrobials, piroctone olamine and triclosan, regularly for 18 months. At entry, mild pruritus and abnormal hair loss were reported by the volunteers. During treatments, pruritus resolved rapidly. Comparison of clinical photographs and trichograms taken at 3-month intervals suggested signs of hair regrowth with moderate increase in density of transitional hairs. Biopsies taken at 6-month intervals were processed for immunohistochemistry. There was a decrease in the density of activated T cells in the region of the follicular infrainfundibulum and isthmus over time. UgG deposits found within the epithelial sheaths at entry to the study were absent in the subsequent biopsies. The volume of the sebaceous glands, as assessed by computerized morphometry, was not modified by the treatment. It was concluded that inflammation associated with AGA transitional hairs may be driven by the presence of microorganisms harboured in the infrainfundibulum. They may modulate the severity of AGA and may potentially be controllable. This offers a new possibility of prevention and partial reversal of hair loss in AGA. [less ▲]

Detailed reference viewed: 314 (0 ULg)
Full Text
Peer Reviewed
See detailDe Bruxelles à la ferme : agriculture et environnement en Belgique
Mormont, Marc ULg

in Etudes Rurales (1996), (No. 141/142), 157-169

The implementation of environmental protection policies in Flanders and Wallonia (Belgium) is investigated, looking at the stages of application and the roles of the actors involved. The factors which ... [more ▼]

The implementation of environmental protection policies in Flanders and Wallonia (Belgium) is investigated, looking at the stages of application and the roles of the actors involved. The factors which intervene in the implementation of a European policy, whose characteristics include reformulation at local level, are identified. Structural and political factors affecting change in agricultural and environmental policies are outlined, including regionalization and the division of responsibilities. The example of Belgium shows how it is important that each authority can redefine its own interests in defending the environment using its own resources and contacts. Implementation at local level implies a series of re-interpretations of each agri-environmental measure in the light of expectations and the reactions of land-users. [less ▲]

Detailed reference viewed: 38 (2 ULg)
See detailThe Ahrensburgian site at Zonhoven-Molenheide
Vermeersch, Pierre M.; Peleman, Chris; Rots, Veerle ULg et al

in Notae Praehistoricae (1996), 16

Detailed reference viewed: 23 (2 ULg)
See detailVan zwart beest tot allemansvriend
Spinoy, Erik ULg

in Muziek en woord (1996), 22(257), 2-3

This article strives to explain the striking evolution in the reception of Van Ostaijen's oeuvre: in his early years, he was a marginalized author. Nowadays, he is one of the most popular and highly ... [more ▼]

This article strives to explain the striking evolution in the reception of Van Ostaijen's oeuvre: in his early years, he was a marginalized author. Nowadays, he is one of the most popular and highly appreciated Flemish authors. [less ▲]

Detailed reference viewed: 8 (0 ULg)
Full Text
Peer Reviewed
See detailCompte rendu de l'ouvrage de ANDORLINI Isabella (Edizione e commento a cura di), Trattato di medicina su papiro, Firenze, Istituto Papirologico "G. Vitelli", 1995
Marganne, Marie-Hélène ULg

in Chronique d'Egypte : Bulletin Périodique de la Fondation Egyptologique Reine Elisabeth (1996), 71

Detailed reference viewed: 14 (3 ULg)
Peer Reviewed
See detailParcours d’un chartiste : Robert-Henri Bautier et le recueil de ses articles
Marchandisse, Alain ULg

in Moyen Age (Le) (1996), 102

Detailed reference viewed: 6 (0 ULg)
Full Text
Peer Reviewed
See detailPhylogenetic Relationships of Nonaxenic Filamentous Cyanobacterial Strains Based on 16S rRNA Sequence Analysis
Nelissen, Bart; De Baere, Raymond; Wilmotte, Annick ULg et al

in Journal of Molecular Evolution (1996), 42

In order to determine the nearly complete 16S rRNA gene sequences of cyanobacteria originating from nonaxenic cultures, a cyanobacterium-specific oligonucleotide probe was developed to distinguish ... [more ▼]

In order to determine the nearly complete 16S rRNA gene sequences of cyanobacteria originating from nonaxenic cultures, a cyanobacterium-specific oligonucleotide probe was developed to distinguish polymerase chain reaction (PCR) products of the cyanobacterial rRNA operons from those resulting from amplification of contaminating bacteria. Using this screening method the 16S rRNA genes of four nonaxenic filamentous cyanobacterial strains belonging to the genera Leptolyngbya and OscitIatoria were cloned and sequenced. For the genus Leptolyngbya, the 16S rRNA sequence of the axenic strain PCC 73110 was also determined. Phylogenetic trees were constructed based on complete and partial sequences. The results show that the strains Leptolyngbya Jbveolarum Kom~rek 1964/112, Leptolyngbya sp. VRUC 135 Albertano t985/1, and LeptoIyngbya boryanum PCC 73110 belong to the same cluster. Strain Oscillatoria cf. corallinae SAG 8.92, which contains the rare photosynthetic pigment CUphycoerythrin, is not closely related to other CUphycoerythrin- containing cyanobacteria. Oscillatoria agardhii CYA 18, which is a representative of planktonic Oscillatoria species that form toxic blooms in Norwegian inland waters, has no close relatives in the tree. [less ▲]

Detailed reference viewed: 24 (2 ULg)
Full Text
Peer Reviewed
See detail3-Isopropylamino-4-methyl-4H-pyrido[4,3-e][1,2,4]thiadiazine 1,1-dioxide
Dupont, L.; Pirotte, Bernard ULg; De Tullio, Pascal ULg et al

in Acta Crystallographica (1996), C52

Detailed reference viewed: 8 (0 ULg)
See detailUtilisation des antibiotiques dans la maladie de Crohn : de la théorie à la pratique
Louis, Edouard ULg; Drion, V.; Belaiche, Jacques ULg

in Médecine et Hygiène (1996), 54

Detailed reference viewed: 25 (1 ULg)
Full Text
Peer Reviewed
See detailLes morphinomimétiques en réanimation
Lamy, Maurice ULg; Joris, Jean ULg; Damas, Pierre ULg et al

in Revue Janssen-Cilag (1996)

Detailed reference viewed: 8 (1 ULg)
Peer Reviewed
See detailEffects of castration on fear reactions of male sheep.
Vandenheede, Marc ULg; Bouissou, Marie-France

in Applied Animal Behaviour Science (1996), 47

Detailed reference viewed: 8 (0 ULg)
Full Text
Peer Reviewed
See detailHumanitarian aid and health services in Eastern Kivu, Zaïre: collaboration or competition
Goyens, Philippe; Porignon, Denis ULg; Mugisho Soron'Gane, Etienne et al

in Journal of Refugee Studies (1996), 9(3), 268-280

The population of eastern Kivu, like that of Rwanda, has been surviving in critical conditions for many years. The Rwandan refugees of 1994 fled into an area with its own serious problems. The Zairean ... [more ▼]

The population of eastern Kivu, like that of Rwanda, has been surviving in critical conditions for many years. The Rwandan refugees of 1994 fled into an area with its own serious problems. The Zairean health services in the health districts of Rutshuru, Kirotshe and Masisi, in spite of the political and socioeconomic disintegration of the country, were still functioning, and the local hospitals and health centres, although overwhelmed, contributed to a large extent to the disaster response. Prominent among the major problems facing the local health services were their limited adaptability, the inadequate coordination and collaboration offered to them by the humanitarian aid agencies, and the discrimination between the direct and secondary victims of the emergency. The public health consequences of the Rwandan refugee crisis for the Zairean population constitute an integral part of the disaster. [less ▲]

Detailed reference viewed: 3 (0 ULg)
Full Text
Peer Reviewed
See detailLaparoscopic myomectomy today. Fibroids: management and treatment: the state of the art.
Donnez, Jacques; Mathieu, Pierre Emmanuel; Bassil, Salim et al

in Human Reproduction (1996), 11(9), 1837-40

Detailed reference viewed: 4 (0 ULg)
Peer Reviewed
See detailWhere is the Algorithmic Support?
Wolper, Pierre ULg

in ACM Computing Surveys (1996), 28(4es), 58

Detailed reference viewed: 10 (0 ULg)
Peer Reviewed
See detailInfection of cattle with Yersinia enterocolitica O:9 a cause of the false positive serological reactions in bovine brucellosis diagnostic tests.
Weynants, V.; Tibor, A.; Denoel, P. A. et al

in Veterinary Microbiology (1996), 48(1-2), 101-12

During the last four years, an increasing number of cattle herds were classified positive by brucellosis screening tests in areas of Belgium and France free of the disease. No clinical symptom of ... [more ▼]

During the last four years, an increasing number of cattle herds were classified positive by brucellosis screening tests in areas of Belgium and France free of the disease. No clinical symptom of brucellosis was reported in these animals and no Brucella abortus strains were isolated. After two years, no brucellosis outbreak was registered in all of the herds concerned. On this basis, all the serological reactions observed were classified as false positive. An ELISA using Yersinia Outer membrane Proteins (YOPs) as antigens was developed in order to discriminate between a Yersinia enterocolitica O:9 infection and a Brucella abortus infection. Antibodies against YOPs were detected in sera from Y. enterocolitica O:9 experimentally infected cattle (n = 4) but not in sera from B. abortus experimentally infected cattle (n = 4). In a field study, 66.7% of the 174 serum samples from cattle presenting false positive serological reactions showed anti-YOPs antibodies whereas only 10% of 454 sera, classified negative by the brucellosis screening tests, showed anti-YOPs antibodies. Our results suggest that infections with Y. enterocolitica O:9 may cause false positive reactions in brucellosis testing. [less ▲]

Detailed reference viewed: 30 (0 ULg)
Peer Reviewed
See detailCharacterization of the potato mitochondrial transcription unit containing 'native' trnS (GCU), trnF (GAA) and trnP (UGG)
Remacle, Claire ULg; MarechalDrouard, L.

in Plant Molecular Biology (1996), 30(3), 553-563

In order to identify the sequences promoting the expression of plant mitochondrial tRNA genes, we have characterized the trnS (GCU), trnF (GAA) and trnP (UGG) transcription unit of the potato ... [more ▼]

In order to identify the sequences promoting the expression of plant mitochondrial tRNA genes, we have characterized the trnS (GCU), trnF (GAA) and trnP (UGG) transcription unit of the potato mitochondrial genome. These three tRNA genes were shown to be co-transcribed as a 1800 nt long primary transcript. The transcription initiation site located 305 to 312 nt upstream of trnS is surrounded by a purine-rich region but does not contain the consensus motif proposed as a promoter element in dicotyledonous plants. Differential labelling of potato mitochondrial RNA with either guanylyltransferase or T4 polynucleotide kinase suggests that this site corresponds to the unique functional region responsible for the transcription of these three tRNA genes. The initiation site recently found upstream of Oenothera mitochondrial rr trnF does not seem to be used in potato mitochondria, although a very similar sequence is present 317 nt upstream of the corresponding potato gene. Major processing sites were identified at the 3' end of each tRNA gene. Another processing site, surrounded by a double hairpin structure, is located 498 nt downstream of trnP in stretch of 10 A residues. As judged from northern experiments, this region is close to the determination site of this transcription unit. [less ▲]

Detailed reference viewed: 6 (0 ULg)
Peer Reviewed
See detailEffets du massage par appareil semi automatique : Etude scintigraphique et tonométrique
Crielaard, Jean-Michel ULg; Vanderthommen, Marc ULg; Dauchat, L. et al

in Kinésitherapie, les Annales (1996), 23(3), 102-105

Detailed reference viewed: 29 (3 ULg)
Full Text
Peer Reviewed
See detailAntithrombin III in the therapy of severe sepsis
Lamy, Maurice ULg; Eisele, B.

in Biomedical Progress (1996), 9

Detailed reference viewed: 8 (0 ULg)
Full Text
Peer Reviewed
See detailRecent advances in drugs acting as tissue selective potassium channel openers
Pirotte, Bernard ULg; De Tullio, Pascal ULg; Lebrun, P.

in Potassium Channel Modulators; ID Research Alert (1996), 1

Detailed reference viewed: 11 (0 ULg)
Peer Reviewed
See detailProposition for the acylation mechanism of serine proteases: A one-step process?
Dive, Georges ULg; Dehareng, Dominique ULg; Peeters, Daniel

in International Journal of Quantum Chemistry (1996), 58(1), 85-107

This work proposes a very detailed ab initio study of the hypothesis for a one-step serine protease acylation process with one water molecule acting as the main catalyst reactant. For the 11 increasing ... [more ▼]

This work proposes a very detailed ab initio study of the hypothesis for a one-step serine protease acylation process with one water molecule acting as the main catalyst reactant. For the 11 increasing complexity models considered, the minimum and transition state conformations for the reaction are determined by full geometry optimizations at the ab initio self-consistent field (scF) levels within several basis sets, from MINI-1 to 6-31G, and, for the smallest complexes, at the post-SCF MP2 level within the 6-31G** basis set. The related thermodynamical quantities are calculated for all the conformations. The influence of the oxyanion hole stabilizer and of the dyad His57-Asp102 is quantified and a very good agreement is obtained with point mutagenesis. The activation barrier is found in the range 15-18 kcal/mol. (C) 1996 John Wiley & Sons, Inc. [less ▲]

Detailed reference viewed: 33 (0 ULg)
See detailAuguste à Eleusis. Un aspect méconnu de l'idéologiqe augustéenne
Rochette, Bruno ULg

in Cahiers de Clio (1996), 127(automne), 3-14

Detailed reference viewed: 18 (0 ULg)
Full Text
Peer Reviewed
See detailA field observation on the influence of aggressive behaviour on mating success in the European grayling
Poncin, Pascal ULg

in Journal of Fish Biology (1996), 48(4), 802-804

The biggest male grayling present on a spawning area was strongly territorial and developed more aggressive behaviours than smaller males. However, its spawning frequency was similar to that of smaller ... [more ▼]

The biggest male grayling present on a spawning area was strongly territorial and developed more aggressive behaviours than smaller males. However, its spawning frequency was similar to that of smaller males. (C) 1996 The Fisheries Society of the British Isles [less ▲]

Detailed reference viewed: 11 (0 ULg)
See detailNouveaux developpements en selection animale.
Burny, A.; Portetelle, Daniel ULg; Renaville, Robert ULg

in Agricontact (1996), (287),

Detailed reference viewed: 8 (2 ULg)
Full Text
Peer Reviewed
See detailExpression of the 27,000 mol. wt heat shock protein following kainic acid-induced status epilepticus in the rat.
Plumier, Jean-Christophe ULg; Armstrong, J. N.; Landry, J. et al

in Neuroscience (1996), 75(3), 849-56

Western analysis and immunohistochemistry were used to determine the time-course and the distribution of the 27,000 mol. wt heat shock protein, Hsp27, in rat brain following systemic administration of ... [more ▼]

Western analysis and immunohistochemistry were used to determine the time-course and the distribution of the 27,000 mol. wt heat shock protein, Hsp27, in rat brain following systemic administration of kainic acid. No Hsp27 immunoreactivity was detected in naive control animals or in rats that failed to develop status epilepticus. Hsp27 immunoreactivity was detected as early as 12 h in the parietal cortex, piriform cortex and the hippocampus of rats that developed status epilepticus. The number of cells expressing Hsp27 and the intensity of Hsp27 immunoreactivity were increased 24 h after kainic acid administration. Hsp27 immunoreactivity was still observed seven days post-kainic acid injection. The morphology of the Hsp27-positive cells and double immunofluorescence against Hsp27 and glial fibrillary acidic protein revealed that Hsp27-positive cells were astrocytes. In addition, the distribution of Hsp27 suggested that astrocytic Hsp27 was dependent on excitation-induced metabolic stress rather than the direct effect of kainic acid on astrocytes. [less ▲]

Detailed reference viewed: 15 (1 ULg)
Peer Reviewed
See detailcompte rendu de : T. Göransson, Albinus, Alcinous. Arius Didymus
Rochette, Bruno ULg

in Byzantion : Revue Internationale des Etudes Byzantines (1996)

Detailed reference viewed: 11 (0 ULg)
Full Text
Peer Reviewed
See detailRelationship between Parathion and Paraoxon Toxicokinetics, Lung Metabolic Activity, and Cholinesterase Inhibition in Guinea Pig and Rabbit Lungs
Lessire, Françoise ULg; Gustin, Pascal ULg; Delaunois, Annie et al

in Toxicology and Applied Pharmacology (1996), 138(2), 201-210

Kinetic parameters of parathion and paraoxon uptake were determined in isolated and perfused rabbit and guinea pig lungs. They were related to organophosphate-induced lung cholinesterase inhibition. A ... [more ▼]

Kinetic parameters of parathion and paraoxon uptake were determined in isolated and perfused rabbit and guinea pig lungs. They were related to organophosphate-induced lung cholinesterase inhibition. A single pass procedure was used to perfuse the lungs with an artificial medium perfusate containing paraoxon or parathion. The paraoxon and parathion concentrations were determined in the effluents collected at chosen intervals over an 18-min period beginning at the start of perfusion. Three inflowing concentrations (1 nmol/ml, 10 nmol/ml, and 20 nmol/ml) were tested in guinea pig lungs and one (10 nmol/ml) in rabbit lungs. Cholinesterase activity was determined at time 0 and at the end of the experiment. The lungs abundantly extracted paraoxon and parathion over the perfusion period. The extraction ratio was consistently greater in guinea pig than in rabbit lungs. The uptake velocity varied biexponentially in time, suggesting the existence of two compartments. Initial uptake velocities (A, B) and slopes (alpha and beta) were calculated for both compartments. In guinea pigs, A, B and A + B increased proportionally to the supply rate of paraoxon and parathion while a and b remained constant. No significant difference was observed between parathion and paraoxon uptake kinetics. Parameter B was the only one to differ significantly between the two species (rabbits: 8.19 +/- 1.53 for parathion and 6.85 +/- 1.26 for paraoxon; guinea pigs: 12.75 +/- 0.88 for parathion and 15.02 +/- 3.84 for paraoxon). In the lungs of both species, there was a linear relation between y, the percentage of cholinesterase inhibition induced by either organophosphate, and X, the total amount of drug taken up by the lung tissue (in nmol/g/18 min). The following equations were obtained: y = 0.128 x + 0.979 (R2 = 0.89, p < 0.001 for paraoxon); y = 0.120 x - 6.57 (R2 = 0.82, p < 0.005 for parathion). No difference was observed between the two organophosphates. After treatment with the cytochrome P450 inhibitor piperonyl butoxide, the above relations ceased to apply, but this treatment did not influence the kinetics of paraoxon and parathion uptake. The IC50 value calculated for paraoxon, i.e., the paraoxon concentration required to produce 50% inhibition of lung cholinesterase activity, was similar for guinea pigs (2.22 10(-7) +/- 0.22 M) and rabbits (2.36 10(-7) +/- 0.24 M). In conclusion, the biexponential evolution of the velocity of paraoxon and parathion uptake by the lungs thus demonstrates the presence of two pools. The lower extraction ratios calculated for rabbit lungs reflect the lower initial uptake velocity of the second compartment. In the range of concentrations investigated in guinea pigs, no saturable mechanism could be demonstrated for paraoxon and parathion. Cytochrome P450-related lung metabolic activity, through which parathion is converted to paraoxon, appears as a major step in parathion-induced lung cholinesterase inhibition, although it does not appear to affect parathion toxicokinetics [less ▲]

Detailed reference viewed: 38 (13 ULg)
Peer Reviewed
See detailLa communauté des citoyens de D. Schnapper
Martiniello, Marco ULg

in New Community (1996), 22(1), 165-166

Detailed reference viewed: 6 (4 ULg)
Full Text
Peer Reviewed
See detailIntensive culture of juvenile and adult Eurasian perch (P. fluviatilis): effect of major biotic and abiotic factors on growth
Mélard, Charles ULg; Kestemont, P.; Grignard, J. C.

in Journal of Applied Ichthyology (1996), 12

Detailed reference viewed: 34 (7 ULg)
See detailTables quinquennales
Lecocq, Pascale ULg

in Actualités du droit (1996)

Detailed reference viewed: 10 (1 ULg)
See detailLa gale psoroptique bovine. Une maladie éradicable ?
Mignon, Bernard ULg; Lonneux, J. F.; Losson, Bertrand ULg

in Sillon Belge (1996), 20.12.1996

Detailed reference viewed: 213 (35 ULg)
Peer Reviewed
See detailRole of pulmonary input impedance in right ventricular failure during experimental septic shock
D'Orio, Vincenzo ULg; LAMBERMONT, Bernard ULg; DETRY, Olivier ULg et al

in American Journal of Respiratory & Critical Care Medicine (1996), 2

Detailed reference viewed: 11 (1 ULg)
See detailAnalyse de "La Mort" de Maurice Carême
Tilkin, Françoise ULg; Mathonet, Anne

in Espace pour un humanisme européen (1996), 29

Detailed reference viewed: 76 (2 ULg)
Peer Reviewed
See detailPapyrologica bilinguia Graeco-latina
Rochette, Bruno ULg

in Aegyptus (1996), 76

Detailed reference viewed: 19 (4 ULg)
Full Text
See detailRené Zazzo, poète et psychologue
Richelle, Marc ULg

in Enfance (1996), (2), 233-237

Detailed reference viewed: 3 (0 ULg)
Full Text
Peer Reviewed
See detailCaractéristiques paléontologiques des couches de transition Westphalien A/B dans le bassin de Campine (Sondage de Peer Kb206), Belgique.
Dusar, M.; Loboziak, S; Streel, Maurice ULg et al

in Sciences Géologiques. Bulletin (1996), 48

Detailed reference viewed: 12 (0 ULg)
Peer Reviewed
See detailMeasurement of tomato firmness by using a non-destructive mechanical sensor
Lesage, Patrick; Destain, Marie-France ULg

in Postharvest Biology & Technology (1996), 8

A non-destructive mechanical sensor (Cantifruit) was designed to measure the firmness of tomatoes. It consists of a small plunger constrained to penetrate slightly into the fruits, by using an accurate ... [more ▼]

A non-destructive mechanical sensor (Cantifruit) was designed to measure the firmness of tomatoes. It consists of a small plunger constrained to penetrate slightly into the fruits, by using an accurate lever mechanism. A highly significant correlation exists between firmness measurements performed with this device and the Stable Micro Systems (SMS), fitted with the same plunger dimaeter. Using the Cantifruit, data related to firmness variability and changes are easily obtained. The firmness of tomatoes varies about 12 % around its circumference. In a single lot of tomatoes picked at the same time, the variability may exceed 25 %. If the tomatoes are stored at 4-5 °C and 92-99 % relative humidity (RH), their firmness decreases by about 20 % over ten days. [less ▲]

Detailed reference viewed: 70 (1 ULg)
Peer Reviewed
See detailChronique de criminologie: Quels supporters pour l'an 2000?
Kellens, Georges ULg; Comeron, Manuel ULg

in Revue de Droit Pénal et de Criminologie (1996), (3), 306-312

Detailed reference viewed: 16 (3 ULg)
Full Text
Peer Reviewed
See detailFréquence et importance du charriage dans des rivières à charge de fond graveleuse
Petit, François ULg; Pauquet, A.; Pissart, Albert ULg

in Géomorphologie : Relief, Processus, Environnement (1996)

Detailed reference viewed: 51 (18 ULg)
See detailComment les professeurs de mathématiques évaluent-ils leurs élèves ?
Demonty, Isabelle ULg; Detheux-Jehin, M.; Vlassis, Joëlle ULg

in Informations Pédagogiques (1996), 27

Detailed reference viewed: 18 (5 ULg)
Full Text
Peer Reviewed
See detailAssessment of the cell-mediated immunity in cattle infection after bovine herpesvirus 4 infection, using an in vitro antigen-specific interferon-gamma assay.
Godfroid, J.; Czaplicki, G.; Kerkhofs, P. et al

in Veterinary Microbiology (1996), 53(1-2), 133-41

The cell-mediated immunity (CMI) following bovine herpesvirus 4 (BHV4) infection has been poorly investigated in cattle. The in vivo response measured by a delayed type of hypersensitivity (DTH) assay has ... [more ▼]

The cell-mediated immunity (CMI) following bovine herpesvirus 4 (BHV4) infection has been poorly investigated in cattle. The in vivo response measured by a delayed type of hypersensitivity (DTH) assay has been reported to be positive in only few animals showing serological evidences of BHV4 infection. We have investigated the CMI following BHV4 infection by an in vitro antigen-specific interferon gamma (IFN-gamma) release assay, as an indicator of an actively acquired immunity to BHV4. Our preliminary results using a partially purified antigen suggest that there was a measurable CMI in 75 out of 168 animals (44.4%) originating from a farm with a clinical history and serological evidences (76.3% seropositivity) of BHV4 infection. If the results of serological tests and BHV4 IFN-gamma test are interpreted in parallel, 81.5% of the animals are classified positive, demonstrating the complementarity of these tests. The specificity of the BHV4 IFN-gamma test was supported by the absence of a measurable CMI in 41 animals originating from a farm with no clinical history or serological evidence of BHV4 infection. In an allied study, we developed a bovine herpesvirus 1 (BHV1) IFN-gamma test. This allowed us to measure the antigen specific IFN-gamma release after stimulation with a mixture of BHV1 and BHV4 antigens. Animals that were classified negative by the BHV4 IFN-gamma test and by the BHV1 IFN-gamma test, were classified negative after stimulation with a mixture of both antigens. Animals that were classified positive by the BHV4 IFN-gamma test or the BHV1 IFN-gamma test, were classified positive after stimulation with a mixture of both antigens. Taken together these results suggest that the in vitro assessment of the CMI after BHV4 infection should be further investigated as a specific and valuable alternative to the DTH assay. [less ▲]

Detailed reference viewed: 36 (0 ULg)
Full Text
Peer Reviewed
See detailHypertension and left ventricular hypertrophy
Krzesinski, Jean-Marie ULg; Rorive, Georges ULg; Van Cauwenberge, Henry

in Acta Cardiologica (1996), 51(2), 143-154

In response to high blood pressure, left ventricular hypertrophy develops. But in hypertension, the myocardial hypertrophied structure is abnormal. The prevalence of this hypertrophy is influenced by age ... [more ▼]

In response to high blood pressure, left ventricular hypertrophy develops. But in hypertension, the myocardial hypertrophied structure is abnormal. The prevalence of this hypertrophy is influenced by age, gender, weight, race, genetics and the severity of high blood pressure. By echocardiography, it has been possible to detect non invasively and more precisely this hypertrophy and its anatomical pattern which is not uniform. This cardiac response is influenced by hemodynamic but also by non hemodynamic factors, but the exact mechanisms are not yet well understood. The humoral and tropic factors particularly affect the cardiac remodeling. Left ventricular hypertrophy has been noted by itself to be an independent risk factor for sudden death, ventricular arrhythmias, myocardial ischemia, and heart failure. Very early hypertension, diastolic dysfunction is noted. The progression to systolic failure in moderate hypertension usually occurs over several decades. According to the worse prognosis of left ventricular hypertrophy, it has been suggested that the reversibility of this anatomical modification by antihypertensive treatment is beneficial. Preliminary data support this idea. [less ▲]

Detailed reference viewed: 15 (6 ULg)
Peer Reviewed
See detailStimulus range effects in temporal bisection by humans.
Wearden, John H; Ferrara, André ULg

in Quarterly Journal of Experimental Psychology. B, Comparative & Physiological Psychology (1996), 49(1), 24-44

Two experiments with human subjects, using short-duration tones as stimuli to be judged, investigated the effect of the range of the stimulus set on temporal bisection performance. In Experiment 1, six ... [more ▼]

Two experiments with human subjects, using short-duration tones as stimuli to be judged, investigated the effect of the range of the stimulus set on temporal bisection performance. In Experiment 1, six groups of subjects were tested on a temporal bisection task, where each stimulus had to be classified as "short" or "long". For three groups, the difference between the longest (L) and shortest (S) durations in the to-be-bisected stimulus set was kept constant at 400 msec, and the L/S ratio was varied over values of 5:1 and 2:1. For three other groups, the L/S ratio was kept constant at 4:1 but the L-S difference varied from 300 to 600 msec. The bisection point (the stimulus value resulting in 50% "long" responses) was located closer to the arithmetic mean of L and S than the geometric mean for all groups except that for which the L/S ratio was 2:1, in which case geometric mean bisection was found. In Experiment 2, stimuli were spaced between L and S either linearly or logarithmically, and the L/S ratio took values of either 2:1 or 19:1. Geometric mean bisection was found in both cases when the L/S ratio was 2:1, but effects of stimulus spacing were found only when the L/S ratio was 19:1. Overall, the results supported a previous conjecture that the L/S ratio used in a bisection task played a critical role in determining the behaviour obtained. A theoretical model of bisection advanced by Wearden (1991) dealt appropriately with bisection point shifts discussed above but encountered difficulties with stimulus spacing effects. [less ▲]

Detailed reference viewed: 38 (0 ULg)
Peer Reviewed
See detailThe tilapia prolactin I gene: evolutionary conservation of the regulatory elements directing pituitary-specific expression
Poncelet, A. C.; Levavi-Sivan, B.; Muller, Marc ULg et al

in DNA & Cell Biology (1996), 15(8), 679-92

To study the elements involved in the pituitary specific transcriptional regulation of the tilapia prolactin I gene (tiPRL I), we have cloned and entirely sequenced a 3.4-kb genomic fragment immediately ... [more ▼]

To study the elements involved in the pituitary specific transcriptional regulation of the tilapia prolactin I gene (tiPRL I), we have cloned and entirely sequenced a 3.4-kb genomic fragment immediately upstream from the first exon. In footprinting experiments, three tilapia sequences are protected from DNase I digestion by rat pituitary extracts (base pair coordinates -643 to -593, -160 to -111, and -73 to -46). Computer analysis of the nucleotide sequence reveals significant homology to mammalian binding sites for Pit-1, a transcription factor that is known to mediate pituitary-specific expression of the PRL genes in mammals. The tiPRL I 5'-flanking sequences can direct transient expression of a linked luciferase reporter gene in transfected rat pituitary cell lines and tilapia pituitary primary cell cultures. Transient expression experiments with 5'-deletion mutants reveal three regulatory regions. Two have a stimulatory effect on transcription and one an inhibitory effect. Electrophoretic mobility-shift assays (EMSA) demonstrate that the rat Pit-1 factor specifically binds to tilapia DNA sequences. Several such tilapia Pit-1 binding sites mediate activation of a linked heterologous promoter in transfected rat and tilapia pituitary cells. As evidenced by EMSA, a Pit-1-like protein is present in tilapia pituitary extracts. All these data point to a high conservation of the molecular mechanisms involved in pituitary-specific expression of the PRL genes in vertebrates. [less ▲]

Detailed reference viewed: 21 (1 ULg)
Full Text
Peer Reviewed
See detailEffecten van internationale overnames op aandelenrendementen
Adriaanse, F.; Corhay, Albert ULg; Tourani-Rad, Alireza

in Maandblad voor Accountancy en Bedrijfseconomie [=MAB] (1996), 70(3), 123-132

Detailed reference viewed: 64 (3 ULg)
Peer Reviewed
See detailCompte-rendu de l'ouvrage de Doyne Dawson : Cities of the Gods : Communist Utopias in Greek Thought
Vanhaegendoren, Koen ULg

in Etudes Classiques (Namur, Belgium) (1996), 64

Detailed reference viewed: 34 (1 ULg)
Full Text
Peer Reviewed
See detailTests au sol du télescope spatial XMM
Mazy, Emmanuel ULg; Stockman, Yvan ULg; Rochus, Pierre ULg

in SupOptique Avenir 1996 page 14-16. (1996)

Detailed reference viewed: 23 (4 ULg)
Peer Reviewed
See detailLes traumatismes artériels thoraciques.
Sakalihasan, Natzi ULg; DEFRAIGNE, Jean ULg; Limet, Raymond ULg

in Vaisseaux, Coeur, Poumons (1996), 1(3), 97-101

Detailed reference viewed: 9 (4 ULg)
Full Text
Peer Reviewed
See detailActivated forms of MMP2 and MMP9 in abdominal aortic aneurysms.
SakalihasanN, Natzi ULg; Delvenne, Philippe ULg; Richelle, Betty ULg et al

in Journal of Vascular Surgery (1996), 24(1), 127-33

PURPOSE: This consistent observation of a reduction of the elastin concentration in abdominal aortic aneurysms (AAAs) has led us to investigate in AAA specimens two metalloproteinases that display ... [more ▼]

PURPOSE: This consistent observation of a reduction of the elastin concentration in abdominal aortic aneurysms (AAAs) has led us to investigate in AAA specimens two metalloproteinases that display elastase activity, MMP2 (gelatinase A/72kDa) and MMP9 (gelatinase B/92 kDa). METHODS: Samples of full-thickness aortic wall, adherent thrombus, and serum were collected in 10 patients with AAAs. Samples of normal aortic wall and serum were taken from 6 age-matched control patients. Quantitative gelatin-zymography and gelatinolytic soluble assays after acetyl-phenyl mercuric acid activation were performed on serum and tissue extracts, and the results were expressed in units on a comparative wet-weight basis. Histologic analysis was performed in parallel to score the inflammatory infiltrate. RESULTS: The luminal and parietal parts of the thrombus contained, respectively, 20- and 10-fold more gelantinolytic activity than the serum. The predominate form was MMP9. Although the total gelatinolytic activity was in the same range both in AAAs and in normal walls, a significantly higher proportion of MMP9 was found in the aneurysmal aortic walls. Furthermore, a significant proportion of MMP9 was under its processed active form, which was never observed in normal samples. A significantly higher proportion of MMP2 was also present as processed active form in AAA wall. This latter parameter positively correlated with the inflammatory score. CONCLUSIONS: The presence of activated MMP9 and MMP2 might contribute to the degradation of the extracellular matrix proteins that occurs during the development of aneurysms. [less ▲]

Detailed reference viewed: 18 (6 ULg)
Full Text
Peer Reviewed
See detailRuminal, cardiorespiratory and adrenocortical sequelae of Na2EDTA-induced hypocalcemia in calves
Desmecht, Daniel ULg; Linden, Annick ULg; Lekeux, Pierre ULg

in Veterinary Research Communications (1996), 20

A study was undertaken to provide further information on the ruminal, cardiorespiratory and hypothalamo-pituitary-adrenocortical (HPAC) physiological sequelae of hypocalcaemia in dairy calves. The ... [more ▼]

A study was undertaken to provide further information on the ruminal, cardiorespiratory and hypothalamo-pituitary-adrenocortical (HPAC) physiological sequelae of hypocalcaemia in dairy calves. The functional picture observed in standing calves experiencing Na2EDTA-induced progressive hypocalcaemia showed a biphasic pattern. During the first phase (Ca2+ varying between 1.20 +/- 0.09 and 0.64 +/- 0.15 mmol/L, mean +/- SD), the animals became dull and lethargic, shifting their weight from one hind limb to the other, with cool extremities and hypersalivation. Their ventilation was slightly increased but their heart rate, thoracoabdominal pressure, pulmonary mechanics, haemoglobin and temperature remained constant. Conversely, their systemic arterial pressure (SAP) and the amplitude of their ruminal contractions (RCA) were severely decreased. During the second phase (Ca2+ < 0.64 +/- 0.15 mmol/L), there was restlessness, tachycardia, hypertension, polycythaemia and, finally, inability to stay upright. It is suggested that the diminished Ca2+ availability caused smooth-muscle and myocardial dysfunctions which could explain the RCA and SAP changes recorded during the first phase, whereas neural and/or humoral sympathetic discharge probably accounted for the reversal in SAP and heart rate when Ca2+ was decreased further. Serum cortisol increased regularly and remained significantly correlated with Ca2+ in each animal. Moreover, regression of delta cortisol/delta Ca2+ on delta Ca2+/delta Na2EDTA was significant (p < or = 0.001). It was concluded that mild asymptomatic hypocalcaemia severely impairs ruminal function, which will progressively worsen the Ca2+ deficit; that the inability to maintain posture in hypocalcaemia is not due to hypotension; and that the higher the HPAC response to hypocalcaemia, the higher the resistance to its effects. An asymptomatic periparturient cow with barely detectable ruminal activity may merit preventive calcium borogluconate therapy. Also, the physiological role of hypotension in explaining the clinical picture may be less important than other processes, such as neuromuscular failure. Finally, the present results imply a possible HPAC exhaustion in cows with periparturient paretic hypocalcaemia [less ▲]

Detailed reference viewed: 40 (1 ULg)
Full Text
Peer Reviewed
See detailIBD mapping of recessive traits in livestock: application to map the bovine syndactyly locus to chromosome 15
Charlier, Carole ULg; Farnir, Frédéric ULg; Berzi, P. et al

in Genome Research (1996), 6

Twelve animals affected with syndactyly or mulefoot were sampled in the Dutch black-and-white cattle population. Analysis of the pedigree data reveal that all of these individuals traced back to a single ... [more ▼]

Twelve animals affected with syndactyly or mulefoot were sampled in the Dutch black-and-white cattle population. Analysis of the pedigree data reveal that all of these individuals traced back to a single acknowledged carrier founder individual. Between seven and nine generations separated the founder from its 12 affected descendents. The 12 affected offspring were genotyped for a battery of 213 microsatellites spanning the 29 bovine autosomes. The resulting genotypes were analyzed using a maximum likelihood approach searching for shared homozygous haplotypes among affected individuals. Three candidate regions for the syndactyly locus emerged from this initial screening. syndactyly was shown to map to one of these candidate regions on chromosome 15 by genotyping 29 additional individuals linking founder and affected offspring and performing a conventional linkage analysis with the LINKAGE programs. This study illustrates the potential of identity-by-descent mapping in livestock populations. [less ▲]

Detailed reference viewed: 28 (3 ULg)
Peer Reviewed
See detailTransition probabilities for [Ni I] and [Ni II] lines
Quinet, Pascal ULg; Le Dourneuf, M

in Astronomy and Astrophysics. Supplement Series (1996), 119

Detailed reference viewed: 17 (0 ULg)
Full Text
Peer Reviewed
See detailThe Appearance of CH3+ Ions from Methyl Halides by resonant photoionization. A translational energy surprisal analysis. Part I. CH3F.
Momigny, J.; Locht, Robert ULg

in Chemical Physics (1996), 206

A surprisal analysis has been applied to the translational energy distribution (TED) of CH3++F from CH3F giving rise to a new and deeper insight into the dissociation dynamics involved in the process. For ... [more ▼]

A surprisal analysis has been applied to the translational energy distribution (TED) of CH3++F from CH3F giving rise to a new and deeper insight into the dissociation dynamics involved in the process. For both the 16.5 eV and 21.22 eV photon energies used, the direct population at different energy levels of the B2E state of CH3F+ which is radiationlessly coupled to the repulsive CH3F+(A2A1) state, gives rise to wide and negatively surprised total TEDs. At both energies they have to be ascribed to severe limitations in the vibrational excitation of CH3+. Additionally, in the case of 21.22 eV photons, a non-statistical expression has to be used to account for the density of translational states. At both photon energies, the population of the CH3F+ electronic states through autoionization of Rydberg states accounts for (i) the concurrent appearance of TEDs governed by a pure RRKM behavour and (ii) the positively surprised TEDs where the angular momentum conservation plays an important role. At 16.85 eV photon energy the distributions are assigned to CH3F+ (X2E)->CH3+ (X1A'1)+F. At 21.22 eV photon energy, doubly excited electronic states of CH3F+ are assumed to take part and they are correlated with CH3+ (3A")+F channel. [less ▲]

Detailed reference viewed: 118 (3 ULg)
Peer Reviewed
See detailNucleic acid detection by in situ molecular immunogold labeling procedures.
Thiry, Marc ULg

in Scanning Microscopy. Supplement (1996), 10

We have recently combined immunogold labeling procedures with molecular biology methods to pinpoint the precise locations of nucleic acids in biological material at the ultrastructural level. These new ... [more ▼]

We have recently combined immunogold labeling procedures with molecular biology methods to pinpoint the precise locations of nucleic acids in biological material at the ultrastructural level. These new immunocytological approaches involve the incorporation of labeled nucleotides in the nucleic acids present at the surface of ultrathin sections prior to immunogold labeling. The antibodies used recognize a nucleoside analogue (bromodeoxyuridine) or a hapten (biotin) employed to label nucleotides. Examples of high-resolution detection include DNA or RNA present in different substructures of cell nuclei, and in particular, in adenovirus-induced intranuclear regions of HeLa cells. In addition to being highly sensitive and specific, these new methods offer the possibility of studying the spatial distribution of nucleic acids in very well preserved, readily recognizable structures. [less ▲]

Detailed reference viewed: 10 (1 ULg)
Full Text
Peer Reviewed
See detailA site with foliicolous lichens in Belgium
van den Boom, Pieter; Sérusiaux, Emmanuël ULg

in Belgian Journal of Botany (1996), 129

Detailed reference viewed: 10 (0 ULg)
Full Text
Peer Reviewed
See detailRecently advanced computerized technology was applied to the investigation of morphometric, immunohistological and three-dimensional changes of the endometrial mucosa in order to evaluate quantitatively the effects of three doses of a new slow-release vaginal progesterone on the endometrium in post-menopausal women. A total of 20 menopausal women, deprived of ovarian function, were given oestrogen for 12 days and a combined therapy of oestrogen (administered orally) and progesterone for another 12 day period. Progesterone was administered vaginally through a new gel (Crinone) utilizing a bioadhesive, biocompatible polymer as a base to achieve a sustained release effect. An endometrial biopsy was taken before treatment, after oestrogen-only treatment and after the oestro-progestogen therapy. Before treatment, all the patients exhibited an atrophic endometrium. After oestrogen-only treatment, typical proliferative changes occurred: an increase in the endometrium thickness, an increase in the mitotic index, numerous cylinder-like glands and no coiled glands, and high concentrations of oestrogen receptors (ER) and progesterone receptors (PR). After the oestro-progestogen therapy, whatever the dose of progesterone given, a secretory transformation of the endometrial mucosa occurred, mitotic activity decreased significantly, more ramified and coiled glands were observed, and a decrease in PR content was noted in epithelial and stromal nuclei, and a decrease in PR content was also observed in epithelial nuclei but not in stromal nuclei. Accurate new techniques of image analysis have shown that crinone therapy could eliminate the proliferative effects of oestrogen treatment in post-menopausal women, despite doses as low as 45 mg of progesterone administered vaginally every other day. The results suggest that the sustained release effects of Crinone are clinically relevant.
Donnez, Jacques; NISOLLE, Michelle ULg; Casanas-Roux, Françoise et al

in Human Reproduction (1996), 11(1), 224-8

A computerized morphometrical investigation was performed on endometriotic tissue from the peritoneum (n = 225) and rectovaginal nodules (n = 65) to compare histologically and stereologically the ... [more ▼]

A computerized morphometrical investigation was performed on endometriotic tissue from the peritoneum (n = 225) and rectovaginal nodules (n = 65) to compare histologically and stereologically the rectovaginal septum endometriotic nodule to peritoneal endometriosis. Mitotic activity, stromal vascularization and the epithelium/stroma ratio were found to be significantly different in peritoneal and rectovaginal endometriosis. The evaluation revealed a major role of glandular epithelium in rectovaginal nodules where the stroma sometimes appeared absent around glandular epithelium. The study demonstrated opposite effects of gonadotrophin-releasing hormone agonists (GnRHa) and lynestrenol on the two lesions. Indeed, in peritoneal endometriosis, after GnRHa therapy, our study demonstrated a lower rate of mitosis and poor stromal vascularization. The same drug was unable to induce the same effects in the nodule although, in contrast, lynestrenol has a strong effect on nodule vascularization. In conclusion, it is suggested that the rectovaginal adenomyotic nodule is a specific disease, different from peritoneal endometriosis. It is not the consequence of 'deep infiltrating' endometriosis but can probably develop from Mullerian rests present in the rectovaginal septum. [less ▲]

Detailed reference viewed: 287 (0 ULg)
Full Text
Peer Reviewed
See detailThe Meaning of ``Formal''
Wolper, Pierre ULg

in ACM Computing Surveys (1996), 28(4es), 127

Detailed reference viewed: 11 (4 ULg)
Full Text
See detailRetizonomonoletes hunanensis Fang et al. 1993 and the Retispora lepidophyta morphon.
Steemans, Philippe ULg; Fang, Xiaosi; Streel, Maurice ULg

in Inst. Géol. de l'Univ. Louvain (1996), 36

Detailed reference viewed: 7 (0 ULg)
Full Text
Peer Reviewed
See detailBalancing the Cenozoic carbon and alkalinity cycles: Constraints from isotopic records
Godderis, Y.; François, Louis ULg

in Geophysical Research Letters (1996), 23(25), 3743-3746

A simple model of the carbon, alkalinity and strontium cycles is built up and used to interpret the carbon and strontium isotopic evolution of seawater over the Cenozoic as recorded in marine limestones ... [more ▼]

A simple model of the carbon, alkalinity and strontium cycles is built up and used to interpret the carbon and strontium isotopic evolution of seawater over the Cenozoic as recorded in marine limestones. The idea that weathering fluxes have increased globally over the Cenozoic in response to the Himalayan uplift is critically examined. It is shown that such an increase of global weathering, postulated to explain the sharp increase in the Sr-87/Sr-86 ratio, is not compatible with the carbon isotopic record, if the budgets of carbon, alkalinity and strontium are considered simultaneously. Another scenario of the Cenozoic evolution of global weathering consistent with the carbon isotopic record is proposed in which the global weathering flux varies only slightly over the Cenozoic with a small increase between 15 Ma and the present. This second scenario appears more consistent with the reconstructed carbonate sedimentation rate and the evolution of the carbon isotopic fractionation in continental and oceanic environments. [less ▲]

Detailed reference viewed: 21 (1 ULg)
Full Text
Peer Reviewed
See detailShedding of the 67-kD laminin receptor by human cancer cells.
Karpatova, M.; Tagliabue, E.; Castronovo, Vincenzo ULg et al

in Journal of Cellular Biochemistry (1996), 60(2), 226-34

The 67-kD laminin receptor (67LR) is a cell membrane-associated molecule exhibiting high affinity for the basement membrane glycoprotein, laminin. While export of the 67LR toward the extracellular matrix ... [more ▼]

The 67-kD laminin receptor (67LR) is a cell membrane-associated molecule exhibiting high affinity for the basement membrane glycoprotein, laminin. While export of the 67LR toward the extracellular matrix has been recently suggested by electron microscopy studies, there is to date no evidence of shedding of the 67LR from cells. Using two monoclonal antibodies directed against the 67LR, we developed a double-determinant radioimmunoassay that demonstrates that the 67LR is released from cancer cells into the culture medium. The shed molecule exhibited the same apparent molecular weight as that of the membrane-associated 67LR, suggesting that no proteolytic cleavage is involved in the process. Furthermore, we demonstrate that the 67LR is not anchored to the membrane through a glycolsyl-phosphatidylinositol bridge. However, the observation that lactose increased the release of 67LR suggests that a lectin-type interaction is involved in the cell membrane association of this laminin binding protein and the cell surface. Interestingly, the released 67LR recovered after HPLC gel filtration was found free as well as associated to high molecular weight complexes. The free 67LR retained its ability to bind to the cell surface. Our study is the first demonstration that the 67LR is effectively shed by cancer cells. The released free 67LR could play an important role in modulating interactions between cancer cells and laminin during tumor invasion and metastasis. [less ▲]

Detailed reference viewed: 11 (0 ULg)
Peer Reviewed
See detailCytochemistry of the tergite epicuticle of Glomeris marginata (Villers) (MYRIAPODA, DIPLOPODA): preliminary experimental results
Compère, Philippe ULg; Defise, Stéphane; Goffinet, Gerhard ULg

in Mémoires du Muséum d'Histoire naturelle (Paris) - Acta Myriapodologica (1996), 169

Detailed reference viewed: 11 (5 ULg)
Peer Reviewed
See detailMort mitotique ou mort apoptotique par irradiation : Même combat ?
Coucke, Philippe ULg; ZOUHAIR

in Médecine et Hygiène (1996), 54(2121), 1241-1245

La mort cellulaire active (apoptose) est un phénomène ubiquitaire dans les organismes multicellulaires. L'apoptose joue un rôle essentiel dans la genèse d'un cancer et dans la réponse au traitement ... [more ▼]

La mort cellulaire active (apoptose) est un phénomène ubiquitaire dans les organismes multicellulaires. L'apoptose joue un rôle essentiel dans la genèse d'un cancer et dans la réponse au traitement oncologique. Les radiations ionisantes sont capables d'induire une mort mitotique et une mort apoptotique. Nous définissons les caractéristiques radiobiologiques de chaque type de mort cellulaire et situons l'importance de l'apoptose pour la réponse tumorale aux radiations ionisantes. La modulation de ce «suicide cellulaire» devrait permettre une amélioration de l'index thérapeutique mais ceci implique une connaissance approfondie des mécanismes qui règlent l'apoptose [less ▲]

Detailed reference viewed: 112 (0 ULg)
Peer Reviewed
See detailArthrite septique du boulet : corrélation entre imagerie et examen anatomo-pathologique
Busoni, Valeria ULg; Rossi, Giacomo; Denoix, Jean-Marie

in Pratique Vétérinaire Equine (1996), 28

Detailed reference viewed: 40 (7 ULg)
Peer Reviewed
See detailThe seasonality of the CO2 exchange between the atmosphere and the land biosphere: A study with a global mechanistic vegetation model
Nemry, B.; François, Louis ULg; Warnant, Pierre ULg et al

in Journal of Geophysical Research (1996), 101(D3), 7111-7125

Two simulations of the seasonal variation of the global atmospheric CO2 distribution are obtained by combining an atmospheric transport model, two parameterizations of soil heterotrophic respiration (SHR ... [more ▼]

Two simulations of the seasonal variation of the global atmospheric CO2 distribution are obtained by combining an atmospheric transport model, two parameterizations of soil heterotrophic respiration (SHR), and a mechanistic model of carbon assimilation in the biosphere (CARAIB) that estimates the net primary production (NPP) of continental vegetation. The steady state hypothesis of the biosphere allows the spatial distribution and the global content of the soil carbon to be expressed as a function of the root fractions of soil respiration under forested and herbaceous vegetation covers. The sensitivity of the modeled CO2 signal to the wind field does not exceed the observed interannual variability. The influence of the various vegetation zones is quantified by the Fourier analysis of the modeled atmospheric signal. In the northern hemisphere, the temperate ecosystems dominate the seasonal atmospheric signal of the extratropical latitudes. The ecosystems of the tropical northern zone determine the local signal, while the southern tropical ecosystems influence largely the signal in the whole southern hemisphere. The results give credence to the mechanistic modeling of NPP since the simulated atmospheric signal is comparable with that obtained with normalized difference vegetation index (NDVI) based diagnostic models coupled with a parameterization of SHR fitted to optimize the atmospheric signal. [less ▲]

Detailed reference viewed: 19 (3 ULg)
Full Text
Peer Reviewed
See detailElectrical microenvironment influence on the hydrolytic activity of free and immobilised Yarrowia lipolytica lipase
Paquot, Michel ULg; Deleu, Magali ULg; Beaufils, C. et al

in Biotechnology Letters (1996), 18(1), 73-78

The role of electrical properties of interfaces upon the activity of free and immobilised Yarrowia lipolytica lipase has been investigated. Sodium taurocholate and Sedipur 400, an anionic polyacrylamide ... [more ▼]

The role of electrical properties of interfaces upon the activity of free and immobilised Yarrowia lipolytica lipase has been investigated. Sodium taurocholate and Sedipur 400, an anionic polyacrylamide, enhance the negative character of the fatty droplets of substrate and tend to improve the lipolytic activity while the cationic polyacrylamide (Sedipur 900) has opposite effects. Ca+ which reduces the fatty droplets charge as Sedipur 900, is however a good activator of the enzyme. The role of electrical properties on the optimum pH of the immobilised enzyme is clearer. Immobilisation of the lipase on a positively charged support shifts its optimum pH to acidic pH by repulsion towards H+ ions around the support. [less ▲]

Detailed reference viewed: 38 (5 ULg)
Full Text
Peer Reviewed
See detailModulation Of Cd3-Gamma Gene Expression After Hiv Type 1 Infection Of The We17/10 T Cell Line Is Progressive And Occurs In Concert With Decreased Production Of Viral P24 Antigen
Willardgallo, Ke.; Delmellewibaut, C.; Segurazapata, I. et al

in Aids Research and Human Retroviruses (1996), 12(8),

Detailed reference viewed: 11 (2 ULg)
Full Text
Peer Reviewed
See detailCellular Pathways Involved In The Ex Vivo Expression Of Bovine Leukemia Virus
Kerkhofs, P.; Adam, E.; Droogmans, L. et al

in Journal of Virology (1996), 70(4),

Detailed reference viewed: 4 (1 ULg)
Full Text
Peer Reviewed
See detailManger juste. Les droits de l'animal dans les encyclopédies de 1750 à 1800. De l'éthique au politique
Strivay, Lucienne ULg

in Colloques d'Histoire des Connaissances Zoologiques (1996), 7

Les encyclopédistes du 18° inclurent leurs définitions de la spécificité humaine par rapport à celle de l'animal dans leur nouvelle synthèse du savoir. A la même époque, resurgit le concept des "droits de ... [more ▼]

Les encyclopédistes du 18° inclurent leurs définitions de la spécificité humaine par rapport à celle de l'animal dans leur nouvelle synthèse du savoir. A la même époque, resurgit le concept des "droits de l'animal" (relayant les anciens procès intentés à des animaux). La communication examine comment Diderot et d'Alembert, Panckoucke, Robinet, De Lisle de Sales, Valmont de Bomare, etc., s'y prirent pour concilier les droits de l'homme et ceux de l'animal dans les articles de leurs encyclopédies. Si l'animal appartient à la catégorie de "l'autre", sa proximité avec l'homme, en raison du développement des premières intuitions transformistes et du sensualisme matérialiste, s'affirme de plus en plus, en opposition au cartésianisme qui considérait l'animal comme une machine et l'écartait, par essence, de l'homme et de Dieu. En conséquence, les points de vue qui s'expriment au siècle des Lumières au sujet des animaux ont suscité des idées dérangeantes sur le lien unissant tous les êtres vivants entre eux et, d'autre part, ils ont soulevé de nouvelles questions, les unes théoriques : au sujet de l'origine des espèces, les autres pratiques : sur le droit de l'homme à manger les animaux, le choix des viandes et ses conséquences morales, voire politiques. Car, fondé comme il l'est sur des formes de violence publique ou privée, l'abattage des animaux afin de produire de la viande a toujours eu de nombreuses implications, notamment sociales, propres à induire finalement des réformes ou des changements d'ensemble. [less ▲]

Detailed reference viewed: 44 (7 ULg)
Full Text
Peer Reviewed
See detailMiospores from the type locality of the middle Famennian Esneux Formation in the Ourthe Valley, eastern Belgium
Loboziak, S; Avkhimovich, V I; Streel, Maurice ULg

in Annales de la Société Géologique de Belgique (1996), 119(2), 111-118

Detailed reference viewed: 17 (1 ULg)
Peer Reviewed
See detailLa place des bisphosphonates dans le traitement de l’ostéoporose
Reginster, Jean-Yves ULg

in Lettre du Rhumatologue (La) (1996), 222

Detailed reference viewed: 2 (2 ULg)
Full Text
Peer Reviewed
See detailProduction of anti-PMSG antibodies and its relation to the productivity of rabbit does
Lebas, F.; Theau-Clement, M.; Remy, Benoît ULg et al

in World Rabbit Science (1996), 4(2), 57-62

Detailed reference viewed: 25 (4 ULg)
See detailUne banque de questions au service de l'évaluation formative dans l'enseignement technique du deuxième degré
Denis, Brigitte ULg; Bosmans, Catherine ULg; Jans, Véronique

in Informations pédagogiques (1996), (22), 23-33

Detailed reference viewed: 14 (3 ULg)
Full Text
Peer Reviewed
See detailBrain thiamine, its phosphate esters, and its metabolizing enzymes in Alzheimer's disease.
Mastrogiacomo, Frank; Bettendorff, Lucien ULg; Grisar, Thierry ULg et al

in Annals of Neurology (1996), 39

Detailed reference viewed: 7 (1 ULg)
Full Text
Peer Reviewed
See detailComparison of Neuromuscular Block of Atracurium and Rocuronium in Adults
Hans, Pol ULg; Brichant, Jean-François ULg; Franzen, A. et al

in Acta Anaesthesiologica Belgica (1996), 47(2), 53-8

We studied the time-course of action of atracurium 0.5 mg kg-1 and rocuronium 0.6 mg kg-1 in 24 healthy adult patients. Anesthesia was induced with thiopentone and sufentanil, and maintained with 50 ... [more ▼]

We studied the time-course of action of atracurium 0.5 mg kg-1 and rocuronium 0.6 mg kg-1 in 24 healthy adult patients. Anesthesia was induced with thiopentone and sufentanil, and maintained with 50% nitrous oxide and 1% enflurane in oxygen. Neuromuscular transmission was monitored by stimulating the ulnar nerve at the wrist and measuring the acceleration of the thumb using the TOF-Guard accelerograph monitor. Supramaximal stimuli of 0.2 ms duration were applied in a single twitch stimulation mode at 1 Hz frequency until completion of block, and in train-of four (TOF) sequence at 2 Hz every 15 sec thereafter. Onset time was longer with atracurium (mean +/- SD:90 +/- 18 sec) than with rocuronium (49 +/- 6 sec). Clinical duration of action (Tl25) was longer with atracurium (52.3 +/- 7.2 min) than with rocuronium (40.0 +/- 6.4 min). Recovery index (Tl25-Tl75) and time for TOF ratio to recover to 0.75 were 17.8 +/- 4.2 and 73.9 +/- 8.8 min with atracurium, and 13.8 +/- 4.1 and 70.4 +/- 14.1 min with rocuronium. The differences between both groups were statistically significant except the difference in the time for TOF to return to 0.75. [less ▲]

Detailed reference viewed: 76 (5 ULg)
Peer Reviewed
See detailThe degree/rapidity of the metabolic deterioration following interruption of a continuous subcutaneous insulin infusion is influenced by the prevailing blood glucose Level.
Castillo, M. J.; Scheen, André ULg; Lefebvre, Pierre ULg

in Journal of Clinical Endocrinology and Metabolism (1996), 81(5), 1975-8

This study aims at investigating the influence of the prevailing blood glucose level on the metabolic deterioration that follows a nocturnal interruption of a continuous sc insulin infusion (CSII ... [more ▼]

This study aims at investigating the influence of the prevailing blood glucose level on the metabolic deterioration that follows a nocturnal interruption of a continuous sc insulin infusion (CSII). Fifteen CSII-treated, C-peptide negative, diabetic patients have been studied CSII was interrupted from 2300 h to 0500 h. Blood was collected hourly from 2200 h to 0600 h. According to blood glucose (BG) levels at 2300 h, patients were classified as hypoglycemic (BG between 1.5 and 2.5 mmol/L, n = 5), normoglycemic (BG between 4.0 and 8.0 mmol/L, n = 5), or hyperglycemic (BG between 9.0 and 15.0 mmol/L, n = 5). At 2300 h, BG (mean +/- SEM) was 1.9 +/- 0.1, 6.2 +/- 0.7 and 11.2 +/- 1.0 mmol/L, respectively. After 6 h of CSII interruption, BG increased to 13.5 +/- 1.3, 14.1 +/- 1.2, and 19.4 +/- 1.2 mmol/L, respectively. At 2300 h, plasma 3-OH-butyrate levels were similar in the three groups (around 150 micromol/L). At 0500 h, significantly higher values were obtained for hyperglycemic (1460 +/- 127 micromol/L) than for normoglycemic (868 +/- 150 micromol/L) or hypoglycemic (837 +/- 80 micromol/L) patients. Enhanced lipolysis in initially hyperglycemic patients may contribute to accelerated ketogenesis and metabolic degradation. In conclusion, the metabolic deterioration that follows CSII interruption is influenced by the initial metabolic situation. Hypoglycemic patients deteriorate more rapidly, and hyperglycemic patients suffer a more important degradation. The latter are prone to rapid ketoacidosis if accidental CSII interruption occurs. [less ▲]

Detailed reference viewed: 9 (1 ULg)