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See detailUn cimetière, une communauté, un espace : l’exemple liégeois
Schmitz, Serge ULg

in Géographie et cultures (1995), 16

The article is the result of the study of 160 years of cemetery history in an urban region which houses today 510.000 peoples. It demonstrates the strong links between urban and rural communities and ... [more ▼]

The article is the result of the study of 160 years of cemetery history in an urban region which houses today 510.000 peoples. It demonstrates the strong links between urban and rural communities and their cemeteries. In order to do this, four points in cemetery history, chosen for the availability of reliable and comparable sources, have been chosen and described successively. Finally the article investigates the reasons for the exponential growth of requiered cemetery size. [less ▲]

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See detailEen geval van hypocalciëmie
Geenen, Vincent ULg

in Belgische Medische Actualiteiten (1995), 472

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See detailA magnetic resonance imaging approach for the diagnosis of a triplet cornual pregnancy.
Bassil, Salim; Gordts, Stéphane; NISOLLE, Michelle ULg et al

in Fertility and Sterility (1995), 64(5), 1029-31

Objectives: To describe a rare case of triplet cornual pregnancy after IVF-ET and to assess the role of magnetic resonance imaging (MRI) for early diagnosis. DESIGN: Case report. SETTING: Infertility and ... [more ▼]

Objectives: To describe a rare case of triplet cornual pregnancy after IVF-ET and to assess the role of magnetic resonance imaging (MRI) for early diagnosis. DESIGN: Case report. SETTING: Infertility and IVF Unit, in an university medical center. PATIENT: A 31-year-old healthy patient with a 3-year history of primary male infertility. INTERVENTION: Standard IVF-ET treatment cycle, using a GnRH-agonist (long protocol) and hMG for ovarian stimulation. RESULTS: A cornual triplet pregnancy is described with the approach for the diagnosis. Magnetic resonance imaging was complementary to endovaginal sonography for early diagnosis and permitted a timed conservative management. CONCLUSIONS: When transvaginal ultrasound findings did not provide an accurate location of the pregnancy, MRI was indicated to confirm the diagnosis. [less ▲]

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See detailEntre sémantique et syntaxe. Pour une classification des lexèmes verbaux en néo-égyptien
Winand, Jean ULg

in Lingua Aegyptia [= LingAeg] (1995), 4

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See detailHandling infinite temporal data
Kabanza, Froduald; Stevenne, Jean-Marc; Wolper, Pierre ULg

in Journal of Computer & System Sciences (1995), 51(1), 3--17

In this paper, we present a powerful framework for describing, storing, and reasoning about infinite temporal information. This framework is an extension of classical relational databases. It represents ... [more ▼]

In this paper, we present a powerful framework for describing, storing, and reasoning about infinite temporal information. This framework is an extension of classical relational databases. It represents infinite temporal information by generalized tuples defined by linear repeating points and constraints on these points. We characterize the expressiveness of these generalized relations in terms of predicates definable in Presburger arithmetic. Next, we prove that relations formed from generalized tuples are closed under the operations of relational algebra and provide complexity results for the evaluation of first-order queries. [less ▲]

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See detailThe effect of gonadal development and sex steroids on growth hormone secretion in the male tilapia hybrid (Oreochromis niloticus x O. aureus O;
Melamed, P.; Eliahu, N.; Ofir, M. et al

in Fish Physiology and Biochemistry (1995)

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See detailEvaluation bryologique d'un projet de réinondation par les crues du Rhin: l'exemple de la réserve naturelle d'Erstein (Alsace, France)
Vanderpoorten, Alain ULg; Klein, J. P.; De Zuttere, P.

in Belgian Journal of Botany (1995), 128

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See detailThe role of the insurance industry in piloting private sector security and prevention policy
Lemaître, André ULg

in European Journal on Criminal Policy and Research (1995), 3.1

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See detailRadiochirurgie et radiothérapie stéréotaxique
Coucke, Philippe ULg; FANKHAUSER

in Médecine et Hygiène (1995), 53(2088), 2002--2009

La radiochirurgie, appelée radiothérapie stéréotaxique lorsqu'il s'agit d'un traitement fractionné, s'effectue en Suisse depuis 1993, soit par accélérateur linéaire modifié, soit par Gamma Knife. Par ... [more ▼]

La radiochirurgie, appelée radiothérapie stéréotaxique lorsqu'il s'agit d'un traitement fractionné, s'effectue en Suisse depuis 1993, soit par accélérateur linéaire modifié, soit par Gamma Knife. Par cette technique on arrive à administrer une dose élevée de radiations à des lésions intracrâniennes circonscrites d'une taille de 3 à 4 cm au maximum, tout en ménageant les tissus normaux avoisinants. Lorsque les lésions sont plus grandes, mal délimitées, ou de forme irrégulière, c'est la radiothérapie conventionnelle et conformationnelle qui offre une meilleure répartition des doses. Les principales lésions considérées pour la radiochirurgie sont les malformations artérioveineuses, les métastases cérébrales solitaires, les méningiomes de la base, les schwannomes vestibulaires et certaines récidives focales de gliomes. [less ▲]

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See detailLa gestion agro-économique dans la Cordillère Nord-Andine
Cotler, Helena; Bock, Laurent ULg; Mathieu, Léon

in Cahiers de la Recherche-Développement (Les) (1995), (42), 28-45

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See detailBone mineral density of the spine and the hip measured with dual energy X-ray absorptiometry: normal range and fracture threshold for western European (Belgian) postmenopausal females.
Reginster, Jean-Yves ULg; Janssen, C; DEROISY, Rita ULg et al

in Clinical Rheumatology (1995), 14(1), 68-75

Bone mineral density (BMD) of the spine and the different regions of interest (ROI) of the hip were measured by dual energy X-ray absorptiometry in 278 healthy Belgian postmenopausal women and 93 ... [more ▼]

Bone mineral density (BMD) of the spine and the different regions of interest (ROI) of the hip were measured by dual energy X-ray absorptiometry in 278 healthy Belgian postmenopausal women and 93 postmenopausal type I osteoporotic females in order to: a) determine the normal range for lumbar and hip BMD values; b) define an "hypothetical" fracture threshold in this population; c) determine the preferential region to be considered for clinical use in type I osteoporosis. In the normal subjects, there is a negative relationship (< 0.001) between age or time elapsed since menopause (Tm) and BMD measured at the level of the spine or at the ROI of the hip. For the spine, evidence of a curvilinear relationship was assessed. Regressions of BMD at the hip as a function of age or time elapsed since menopause, were best fitted by a linear relationship. In the population of postmenopausal women who have experienced a vertebral crush fracture, no relationships were observed between spine BMD and age or Tm but the osteoporotic women had a spine BMD significantly lower compared to age-matched normal controls: Z-score = -1.2 +/- 0.6 (mean +/- SD) (p < 0.0001). Fracture threshold calculated as the 90th percentile of spine BMD measured in osteoporotic patients was 0.840 g/cm2, corresponding to the mean value -1 SD for a population of women aged 51 years. [less ▲]

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See detailApproche thérapeutique du cancer épithélial de l'ovaire au CHU Sart Tilman : Conclusions de la réunion interdisciplinaire du 22 mars 1995
Jerusalem, Guy ULg; Detroz, Bernard ULg; Herman, Philippe ULg et al

in Revue Médicale de Liège (1995), 50

Notre but est de définir une approche multidisciplinaire permettant d'offrir les meilleures chances de guérison ou de survie prolongée aux patientes. Nous nous sommes basés sur notre expérience ... [more ▼]

Notre but est de définir une approche multidisciplinaire permettant d'offrir les meilleures chances de guérison ou de survie prolongée aux patientes. Nous nous sommes basés sur notre expérience personnelle et les données actuelles de la littérature, tout en intégrant les approches innovatrices (ex : chimiothérapie intrapéritonéale précoce). Pour certaines patientes, le pronostic reste trop sombre avec un traitement standard et il nous semble important de leur proposer un traitement potentiellement plus efficace. [less ▲]

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See detailPhospholipid-Binding And Lecithin-Cholesterol Acyltransferase Activation Properties Of Apolipoprotein-A-I Mutants
Holvoet, P.; Zhao, Za.; Vanloo, B. et al

in Biochemistry (1995), 34(41), 13334-42

Recombinant human apolipoprotein A-I (apo A-I) and three deletion mutants: apo A-I(delta Leu44-Leu126), apo A-I(delta Glu139-Leu170), and apo A-I(delta Ala190-Gln243), purified from the periplasmic space ... [more ▼]

Recombinant human apolipoprotein A-I (apo A-I) and three deletion mutants: apo A-I(delta Leu44-Leu126), apo A-I(delta Glu139-Leu170), and apo A-I(delta Ala190-Gln243), purified from the periplasmic space of Escherichia coli, were studied. The rate of turbidity decrease following mixing of apo A-I(delta Ala190-Gln243) with dimyristoylphosphatidylcholine (DMPC) vesicles at 23 degrees C was 10-fold lower than that of the other apo A-I proteins, confirming that the carboxy-terminal region of apo A-I plays a role in rapid lipid binding. The Stokes radii of reconstituted high-density lipoproteins (rHDL), containing dipalmitoylphosphatidylcholine and cholesterol, were larger for the three apo A-I mutants [6.3 nm for apo A-I(delta Leu44-Leu126), 6.1 nm for apo A-I(delta Glu139-Leu170), and 6.5 nm for apo A-I(delta Ala190-Gln243)] than for intact apo A-I (5.0 nm). The mutant rHDL all contained 4 apo A-I molecules per particle as compared to 2 for intact apo A-I. Circular dichroism measurements revealed 8 alpha-helices per apo A-I molecule, 5 per apo A-I(delta Leu44-Leu126), 6 per apo A-I(delta Glu139-Leu170), and 4 per apo A-I(delta Ala190-Gln243) molecule as compared to predicted values of 8, 5, 6, and 6 alpha-helices, respectively. [less ▲]

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See detailMéthodologie pour une meilleure représentation spatio-temporelle des fluctuations pluviométriques observées au Niger depuis 1905
Ozer, Pierre ULg; Erpicum, Michel ULg

in Sécheresse (1995), 6(1), 103-108

The fluctuations of annual precipitation observed in Niamey and Zinder (Niger) since the turn of the century warranted a comparison of rainfall maps and rainy-season characteristics between 1950-1967 ... [more ▼]

The fluctuations of annual precipitation observed in Niamey and Zinder (Niger) since the turn of the century warranted a comparison of rainfall maps and rainy-season characteristics between 1950-1967 (period of high rainfall) and 1968-1985 (period of low rainfall). Calculating two specific annual spatiotemporal rainfall profiles provided precisions as to the irregular and heterogeneous advance of the drought through Niger. [less ▲]

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See detailSerological and cutaneous testing of bovine tuberculosis with the A60 antigen complex from Mycobacterium bovis, strain Calmette-Guérin
Saegerman, Claude ULg

in Preventive Veterinary Medicine (1995), 23

A60, a major thermostable macromolecular antigen complex of Mycobacterium bovis strain Calmette-Guerin (BCG), is immunodominant in tuberculosis and able to elicit both humoral and cellular immune ... [more ▼]

A60, a major thermostable macromolecular antigen complex of Mycobacterium bovis strain Calmette-Guerin (BCG), is immunodominant in tuberculosis and able to elicit both humoral and cellular immune reactions in infected hosts. A60-based ELISA and cutaneous tests have been used, in conjunction with the PPD-based skin reaction, in a control group of healthy animals, and in a herd including tuberculous animals. Cutaneous testing with A60 yielded results comparable with those with PPD: both were negative with control cattle and positive with infected animals. Moreover, comparative cutaneous testing with avian tuberculin yielded similar results with PPD and A60. When animals from the infected herd were tested with both avian and bovine sensitins, 54% of cattle were diagnosed as fully positive, 26% suspect, and 20% negative. Serological analysis with the A60-ELISA of part of the infected herd yielded 74% positive, 21% suspect and 5% negative results. Thus, positivity was 74% for serological analysis and 54% for cutaneous testing, whereas positive plus suspect results were 95% for serological analysis and 80% for cutaneous testing. It can be concluded that A60 can be used in place of PPD for cutaneous testing in cattle, and that the diagnostic value of the A60-ELISA is superior to that of the PPD-cutaneous test. [less ▲]

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See detailToxicité potentielle et utilisation pratique du méthotrexate dans la polyarthrite rhumatoïde
Kaye, O.; Ribbens, Clio ULg; Hauwaert, Christian ULg et al

in Médecine et Hygiène (1995)

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See detailN2-cyano-N1-isopropyl-N3-[4-(3-methylphenylamino)-3-pyridylsulfonyl]guanidine
Dupont, L.; Masereel, B.; De Tullio, Pascal ULg et al

in Acta Crystallographica (1995), C51

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See detailAneurysms of the abdominal aorta: familial and genetic aspects in three hundred thirteen pedigrees.
VERLOES, Alain ULg; SakalihasanN, Natzi ULg; Koulischer, Lucien ULg et al

in Journal of Vascular Surgery (1995), 21(4), 646-55

PURPOSE: Familial clustering of abdominal aortic aneurysm was first noticed in 1977. METHODS: Through questionnaire and phone inquiry, familial data on 324 probands with abdominal aortic aneurysms allowed ... [more ▼]

PURPOSE: Familial clustering of abdominal aortic aneurysm was first noticed in 1977. METHODS: Through questionnaire and phone inquiry, familial data on 324 probands with abdominal aortic aneurysms allowed the establishment of 313 multigenerational pedigrees including 39 with multiple affected patients. RESULTS: There were 276 sporadic cases (264 men, 12 women); 81 cases belonged to multiplex pedigrees (76 men; 5 women). We compared familial and sporadic male cases; the ages at diagnosis were 64.1 +/- 7.9 years and 66.0 +/- 7.3 years (p < 0.05), respectively, the ages at rupture were 65.4 +/- 6.6 years and 75.2 +/- 8.6 years (p < 0.001), and the rupture rate was 32.4% and 8.7% (p < 0.001). Survival curves were computed. Relative risk for male siblings of a male patient was 18. We performed a segregation analysis with the mixed model, the most likely explanation for occurrence of abdominal aortic aneurysm in our families was a single gene effect showing dominant inheritance. The frequency of the morbid allele was 1:250, and its age-related penetrance was not higher than 0.4. CONCLUSION: This analysis indicates the preeminence of genetic factors on multifactorial/environmental effects of the pathogenesis of abdominal aortic aneurysm. [less ▲]

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See detailRecent advances in the chemistry of potassium channel openers
Pirotte, Bernard ULg; Fontaine, J.; Lebrun, P.

in Current Medicinal Chemistry (1995), 2

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See detailNetherton’s syndrome in two sisters. A ten year experience of therapy with retinoids
Groves, S.; Dezfoulian, Bita ULg; Bonardeaux, Ch et al

in Journal of the European Academy of Dermatology & Venereology (1995)

Netherton’s syndrome is a recessive autosomal disease associating ichthyosiform dermatosis, hair dysplasia and systemic involvement. (Netherton, 1958, Arch. Dermatol., Vol. 78,483-487). We report the ... [more ▼]

Netherton’s syndrome is a recessive autosomal disease associating ichthyosiform dermatosis, hair dysplasia and systemic involvement. (Netherton, 1958, Arch. Dermatol., Vol. 78,483-487). We report the observation of two sisters who present the complete form of Netherton’s syndrome. Both patients were treated with retinoids for more than ten years. [less ▲]

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See detailBiological-Activity Of Fenoxycarb Against Sitophilus-Zeamais Motsch (Coleoptera, Curculionidae)
Letellier, C.; Haubruge, Eric ULg; Gaspar, Charles ULg

in Journal of Stored Products Research (1995), 31(1),

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See detailThe Kozani-Grevena (Greece) earthquake of May 13, 1995, Ms=6.6, Preliminary results of a field multidisciplinary survey
Hatzfeld, D.; Nord, J.; Paul, A. et al

in Seismological Research Letters (1995), 66

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See detailCyclosporin A, rapamycin and FK506 decrease prolactin release from rat pituitary cells in primary culture
Wera, S.; Zheng, L.; Hooghe-Peters, E. L. et al

in Endocrine Research (1995), 21(3), 623-33

It is at present well established that prolactin exerts a non-specific immunoactivating function. In this work we tested whether the immunosuppressant drugs cyclosporin A, FK506 and rapamycin influence ... [more ▼]

It is at present well established that prolactin exerts a non-specific immunoactivating function. In this work we tested whether the immunosuppressant drugs cyclosporin A, FK506 and rapamycin influence prolactin release from rat pituitary cells in primary culture. The tested drugs had no effect on the prolactin release measured during a 2h incubation period, indicating that they do not influence the secretion of prolactin from intracellular stores into the culture medium. During longer incubation times (48h), however, prolactin release was diminished to 56% +/- 18 (10 microM cyclosporin A), 64% +/- 14 (1 microM rapamycin) or 64% +/- 7 (1 microM FK506), suggesting an effect on prolactin production. At these drug concentrations no toxic effects were observed. The data indicate that inhibition of pituitary prolactin synthesis might contribute to the immunosuppressant action of cyclosporin A, rapamycin and FK506. [less ▲]

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See detailThe effectiveness of combined oral lysine acetylsalicylate and metoclopramide compared with oral sumatriptan for migraine.
Tfelt-Hansen, P.; Henry, P.; Mulder, L. J. et al

in Lancet (1995), 346(8980), 923-6

Aspirin is commonly used to treat migraine attacks, although sumatriptan, a much more expensive treatment, is also effective. We compared a combination of lysine acetylsalicylate (equivalent to 900 mg ... [more ▼]

Aspirin is commonly used to treat migraine attacks, although sumatriptan, a much more expensive treatment, is also effective. We compared a combination of lysine acetylsalicylate (equivalent to 900 mg aspirin) and 10 mg metoclopramide (LAS+MTC) with oral sumatriptan (100 mg) and placebo in 421 patients with migraine. LAS+MTC was as effective as sumatriptan with a decrease of headache from severe or moderate to mild or none of 57% and 53%, respectively, for the first migraine attack treated. Both treatments were better than placebo (success rate 24%, p < 0.0001). LAS+MTC was significantly more effective in the treatment of nausea than sumatriptan (p < 0.0001) and was better tolerated (adverse events in 18% and 28%, respectively, p < 0.05). LAS+MTC is as effective as sumatriptan in the treatment of migraine attacks. It is also much cheaper. [less ▲]

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See detailEffect of prolonged exercise on neutrophil myeloperoxidase secretion
Bury, Thierry ULg; PIRNAY, Freddy ULg

in International Journal of Sports Medicine (1995)

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See detailAutovidéoscopie et formation des enseignants: les techniques d'analyse de gestes
Cloes, Marc ULg; Piéron, Maurice

in Eduquer et former. Théories et pratiques (1995), 3/4

Se référant aux résultats de plusieurs recherches prenant pour cadre la formation d'enseignants en éducation physique, les auteurs apportent des éléments de réponses quant à la pertinence de l'utilisation ... [more ▼]

Se référant aux résultats de plusieurs recherches prenant pour cadre la formation d'enseignants en éducation physique, les auteurs apportent des éléments de réponses quant à la pertinence de l'utilisation des techniques d'analyse de gestes sur vidéo et d'enseignement simulé. L'articulation de l'analyse avec la littérature scientifique du domaine laisse une grande liberté de transposition vers d'autres champs d'application. [less ▲]

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See detailCombined radiotherapy and radioimmotherapy of human colon carcinoma grafted in nude mice.
Buchegger, F; Rojas, A; Delaloye, A et al

in Cancer Research (1995), 55

The effect of combined radioimmunotherapy (RIT) and fractionated external beam radiotherapy (RT) was assessed in two human colon cancer xenografts, Col 12 and LS174T in nude mice. These tumors were ... [more ▼]

The effect of combined radioimmunotherapy (RIT) and fractionated external beam radiotherapy (RT) was assessed in two human colon cancer xenografts, Col 12 and LS174T in nude mice. These tumors were selected for being resistant to RIT alone, as is usually the case in the clinical situation. Tumor-bearing mice were treated with a combination of five X-ray fractions over 5 days followed by RIT with two doses of 1.5 mCi 131I-labeled anticarcinoembryonic antigen monoclonal antibody F(ab')2. In Col 12 and LS174T, RIT alone achieved a regrowth delay similar to that of fractionated RT with total doses of 28 and 26 Gy, respectively. In both tumor types, an additive therapeutic effect, measured as increased regrowth delay or local control, was observed when combining RT of different dose levels with RIT. Normal tissue responses were assessed by monitoring acute peak skin reactions and blood cell count. Bone marrow depression for the combination treatment was similar to that of RIT alone; relative to skin, at equitoxic levels, no mice bearing Col 12 tumors were locally controlled with a 32 Gy RT dose alone, while this RT combined with RIT gave a local control of 100%. These studies show a therapeutic benefit when external beam RT is combined with RIT. [less ▲]

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See detailSuperovulation in cows with FSH preparation containing different amounts of LH
Smorag, Z.; Beckers, Jean-François ULg; Bychawski, S. et al

in Roczniki Naukowe Zootechniki (1995), 22(2), 103-108

One of the main factors influencing the effectiveness of superovulation is the quality of gonadotropin used.Especially the proportion of FSH to Lh can play an important role.In the experiment ... [more ▼]

One of the main factors influencing the effectiveness of superovulation is the quality of gonadotropin used.Especially the proportion of FSH to Lh can play an important role.In the experiment superovulatory response of cows treated with FSH containing different amounts of LH was evaluated.Observations were carried out on 120 Polish Black-and-White Lowland cows aged from 5 to 8 years.On day 9, 10 and 11 after oestrus, 40 mg of FSH containing 10,20 or 40% of LH was injected in 8 decreasing doses at 12 h intervals.In the control group 3000 IU PMSG per cow was administrated.Forty-eight hours after the initial FSH or PMSG injection, 3 ml PGF 2-alpha analog was injected to donors to induce oestrus.An average of 5.6, 5.3, 3.9 and 1.7 transferable embryos was recovered after treatment of the cows with FSH +20% LH, FSH +40% LH, FSH +10% LH and PSMG, respectively. [less ▲]

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See detailPhysiological measurements in horses after strenuous exercise in hot, humid conditions
Art, Tatiana ULg; Votion, Dominique ULg; Lekeux, Pierre ULg

in Equine Veterinary Journal. Supplement (1995), 20

The purpose of this study was 1) to measure and compare some physiological parameters in horses during a standardised treadmill exercise performed either in temperate atmospheric conditions (TC) (ambient ... [more ▼]

The purpose of this study was 1) to measure and compare some physiological parameters in horses during a standardised treadmill exercise performed either in temperate atmospheric conditions (TC) (ambient temperature: 15 degrees C; relative humidity: 55%), or in hot and humid conditions (HHC) (ambient temperature: 30 degrees C; relative humidity: 75%) and 2) to follow the recovery of the same horses during 1 h after both tests. Five healthy fit Standardbred horses were investigated twice at 8 days interval, in TC and in HHC. Some measurements were made during a standardised treadmill exercise test (SET), others during a 1 h recovery period. The SET consisted of 8 min warm-up and 8 min exercise. During the SET, respiratory airflow and O2 and CO2 fraction in the respiratory gases were continuously recorded, using 2 ultrasonic pneumotachographs connected to a face mask and a mass spectrometer. Oxygen uptake (VO2), carbon dioxide output, respiratory quotient and expired minute volume (VE) were obtained on a breath-by-breath basis. The maximal values obtained during the highest intensity of the SET and the values obtained 2 min after the end of the test were used for the comparison between both tests. Heart rate (HR) and skin temperature were continuously recorded, using a heart rate recording system and a real time infrared thermographic unit, respectively. After both SETs in TC and HHC, the horses recovered in TC. Heart rate, respiratory frequency (f) and rectal temperature were regularly measured during 1 h after the test. Venous blood was sampled after the completion of the test for biochemical analysis, namely plasma electrolytes and enzymatic activities. Exercising in HHC induced a reduction of the aerobic metabolism to the total energy requirement, i.e. a 20% decrease of VO2 and 55% increase in lactate, as well as a decrease in VE. The increase in rectal and skin temperature, the dehydration and the weight loss were higher in HHC than in TC. During the recovery period the HR and f remained higher up to 30 min after the end of the SET in HHC while the rectal temperature remained higher up to 60 min after the end of this test. Therefore, despite the fact that our horses recovered in TC after exercising in HHC, there were significant differences between their physiological parameters measured during the recovery. This means that the recovery in air-conditioned unit would probably be an insufficient measure to ensure an adequate cooling of the horses and justify consequently the adaptations proposed by the Federation Equestre Internationale (FEI), i.e. the decrease of the distance of the run and the increase of the time devoted to the halt between phases [less ▲]

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See detailÀ propos des graphies dans les Late Ramesside Letters
Winand, Jean ULg

in Lingua Aegyptia [= LingAeg] (1995), 4

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See detailReaction Window in the single-electron capture by Ammonia Dications.
Leyh, Bernard ULg; Hoxha, Antuan

in Chemical Physics (1995), 192

Single-electron capture (SEC) by (NH3)2+ with rare gases (He, Ne, Ar, Kr, Xe) and benzene, (NH3)2++G->NH3++G+, has been investigated using a forward geometry double-focussing mass spectrometer. The SEC ... [more ▼]

Single-electron capture (SEC) by (NH3)2+ with rare gases (He, Ne, Ar, Kr, Xe) and benzene, (NH3)2++G->NH3++G+, has been investigated using a forward geometry double-focussing mass spectrometer. The SEC cross-section goes through a maximum within a reaction window centered at an exothermicity of approximately 4.5 eV. This corresponds to a target-projectile distance for the charge transfer of about 3.2 Angstöm. The average internal energy of NH3+-ions resulting from SEC has been obtained both via translational energy gain measurements and via an analysis of the daughter ion spectra. The agreement between both methods is satisfactory and shows that the lower the ionisation energy of the target, the more probable the excitation of NH3+ to the A2E state. With benzene (ionization energy=9.25 eV) as the target gas, however, the excess energy is converted partly to internal energy of C6H6+, leading most probably to the D2B2u, E2B1u and F2A1g states of C6H6+. A model based on the Landau-Zener non-adiabatic formalism, including one entrance channel (NH32++G) and two exit channels (NH3+ X2A"2+G+ and NH3+ A2E+G+) accounts qualitatively for the observed results in the case of exothermic single-electron capture. This model is not appropriate for slightly exothermic and endothermic charge transfer, i.e., in the present case, for the Ne and He target gases. [less ▲]

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See detailPrésence d'appendices mucoïdes sur les ascospores de Raciborskiella janeirensis (Müll. Arg.) R. Sant.
Roux, Claude; Sérusiaux, Emmanuël ULg

in Bulletin de la Société Linnéenne de Provence (1995), 46

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See detailGlucose inhibits human placental GH secretion, in vitro
Patel, N.; Alsat, E.; Igout, Ahmed ULg et al

in Journal of Clinical Endocrinology and Metabolism (1995), 80(5), 1743-6

Human placenta specifically expresses the GH-V gene leading to the production of placental Growth Hormone (PGH). During pregnancy, PGH levels increase progressively in maternal blood, but its regulation ... [more ▼]

Human placenta specifically expresses the GH-V gene leading to the production of placental Growth Hormone (PGH). During pregnancy, PGH levels increase progressively in maternal blood, but its regulation remains unknown. In this study the effect of glucose on PGH secretion by human term placenta was tested, in vitro, by means of two different experimental models: organ culture of villous tissue and primary culture of isolated cytotrophoblasts. PGH was assayed in the culture medium by an immunoradiometric assay using a specific PGH monoclonal antibody. The presence of glucose (25 mmol/L) in the culture medium significantly inhibited (p < 0.001) the secretion of PGH by either placental villous explants or by cultured trophoblast cells. This inhibitory effect of glucose on PGH secretion was dose-dependent. More than 50% inhibition being observed with 5.5 mmol/L. In the same conditions, the daily production of hPL and hCG, were unmodified. Furthermore, the glucose-induced inhibition of PGH secretion was more effective when cultured trophoblast cells are differentiated into syncytiotrophoblast. This study demonstrates, for the first time, that among the gestational polypeptide hormones secreted by the human placenta, only PGH secretion is modulated by glucose, suggesting a key metabolic role for this hormone during pregnancy. [less ▲]

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See detailGrowth hormone response to clonidine in nondepressed patients with a history of suicide attempts.
Pitchot, William ULg; Hansenne, Michel ULg; Moreno, A. G. et al

in Biological Psychiatry (1995), 38(3), 201-3

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See detailEndogenous reproductive hormones and nocturnal rhythms in partner preference and sexual behavior of ATD-treated male rats.
Bakker, Julie ULg; van Ophemert, J.; Timmerman, M. A. et al

in Neuroendocrinology (1995), 62(4), 396-405

Male rats received subcutaneously silastic capsules, containing the aromatase inhibitor 1,4,6-androstatriene-3,17-dione (ATD), shortly after birth. Control males were given silastic capsules containing ... [more ▼]

Male rats received subcutaneously silastic capsules, containing the aromatase inhibitor 1,4,6-androstatriene-3,17-dione (ATD), shortly after birth. Control males were given silastic capsules containing cholesterol. The capsules were removed at the age of 21 days. In adulthood, blood serum was collected early and late in the dark phase of the light/dark cycle (experiment I). Testosterone and luteinizing hormone and follicle stimulating hormone (FSH) fluctuated nocturnally, both in ATD and control males, with highest levels late in the dark phase. FSH levels were significantly higher in ATD males. Nocturnal levels of inhibin, a selective suppressor of pituitary FSH secretion, also fluctuated in both ATD and control males, with lowest levels late in the dark phase. In experiment II, ATD and control males were tested for partner preference behavior in a three-compartment box (choice: sexually active male vs. estrous female) early and late in the dark phase. When gonadally intact, ATD males, but not controls, showed a clear nocturnal rhythmicity in partner preference behavior and sexual behavior. Early in the dark phase, such ATD males preferred the vicinity of and interaction with a sexually active male. Late in the dark phase, this preference for the active male shifted to a preference for the estrous female. Control males preferred the estrous female. After castration and subsequent treatment with testosterone via silastic capsules, which ensured constant blood serum levels, ATD males continued to show their nocturnal rhythms in partner preference behavior and in sexual behavior. Thus, the underlying mechanism of the nocturnal rhythmicity phenomenon is an organizational effect of neonatal ATD treatment rather than an activational effect of fluctuating serum hormone levels. [less ▲]

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See detailLa grande illusion (le photojournalisme: quelques repères)
Mélon, Marc-Emmanuel ULg

in Admiranda : Cahiers d'Analyse Filmique de l'Université de Provence (1995), 10

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See detailMolecular cloning and characterization of a soluble inorganic pyrophosphatase in potato.
du Jardin, Patrick ULg; Rojas-Beltran, J.; Gebhardt, C. et al

in Plant Physiology (1995), 109(3), 853-60

A cDNA clone encoding a soluble inorganic pyrophosphatase (EC 3.6.1.1) of potato (Solanum tuberosum L.) was isolated by screening a developing tuber library with a heterologous probe. The central domain ... [more ▼]

A cDNA clone encoding a soluble inorganic pyrophosphatase (EC 3.6.1.1) of potato (Solanum tuberosum L.) was isolated by screening a developing tuber library with a heterologous probe. The central domain of the encoded polypeptide is nearly identical at the sequence level with its Arabidopsis homolog (J.J. Kieber and E.R. Signer [1991] Plant Mol Biol 16: 345-348). Computer-assisted analysis of the potato, Arabidopsis, and Escherichia coli soluble pyrophosphatases indicated a remarkably conserved organization of the hydrophobic protein domains. The enzymatic function of the potato protein could be deduced from the presence of amino acid residues highly conserved in soluble pyrophosphatases and was confirmed by its capacity to complement a thermosensitive pyrophosphatase mutation in E. coli. The potato polypeptide was purified from complemented bacterial cells and its pyrophosphatase activity was shown to be strictly dependent on Mg2+ and strongly inhibited by Ca2+. The subcellular location of the potato pyrophosphatase is unknown. Structure analysis of the N-terminal protein domain failed to recognize typical transit peptides and the calculated molecular mass of the polypeptide (24 kD) is significantly inferior to the values reported for the plastidic (alkaline) or mitochondrial pyrophosphatases in plants (28-42 kD). Two unlinked loci could be mapped by restriction fragment length polymorphism analysis in the potato genome using the full-length cDNA as probe. [less ▲]

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See detailLa transmission du chant chez le Pinson des arbres (Fringilla c. coelebs) : phase sensible et rôle des tuteurs chez les oiseaux captifs.
Metzmacher, Maxime ULg

in Alauda (1995), 63

Learning plays a key role (Thorpe 1954) in the way song pattern develops in the Chaffinch. In experiments conducted and related here by Léon Hakin, the rearing of young Chaffinches in the presence of ... [more ▼]

Learning plays a key role (Thorpe 1954) in the way song pattern develops in the Chaffinch. In experiments conducted and related here by Léon Hakin, the rearing of young Chaffinches in the presence of adults of the same species suggests that : - learning of song can be relatively precise ; the young imitate the song(s) heard from its « teachers » during this period. This confirms experiments done by other researchers under different conditions (Slater & Ince 1982, Thielcke & Krome 1989). Some differences may however occur, particurlarly the form of the reproduced syllabes and their rythm of emision. - during its second calendar year, a bird placed in a new sound atmosphere can acquire new phrases and, apparently, forget its previous repertory. - certain young birds build up their repertory by coping phrases from different individuals and copy many of them for fixing the tempo of their song. The aim of the discussion is to find the characteristics of the sensitive period, the importance of social interactions on the process of song learning, the building of a repertory and the formation of dialects. In the last two phenomena, a process of dynamic and selective restructuration appears to be implied. [less ▲]

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See detailLa naissance des cités au Proche-Orient
Tunca, Önhan ULg

in Le génie de l'Homme. Des origines à l'écriture (1995)

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See detailGrowth hormone, insulin-like growth factor-I and their plasma binding proteins in different cattle breeds.
Renaville, Robert ULg; Massart, Serge; Shojae, D. et al

in Zootecnica e Nutrizione Animale (1995), 21(2),

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See detailManagement of high turnover osteoporosis with calcitonin
Reginster, Jean-Yves ULg

in Osteoporosis Digest (1995), 3

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See detailRat heart-aorta cluster transplantation : a novel model to study transplant rejection
D'Silva, Milbhor; Candidas, D.; Lee, S. et al

in Transplant International (1995), (8), 298-306

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See detailNumber and relative size of thenar motor units estimated by an adapted multiple point stimulation method.
Wang, François-Charles ULg; Delwaide, Paul ULg

in Muscle & nerve (1995), 18(9), 969-79

An adapted multiple point stimulation (AMPS) method is described for estimating the number and relative size of thenar motor units. With this method, the median nerve was stimulated at various sites from ... [more ▼]

An adapted multiple point stimulation (AMPS) method is described for estimating the number and relative size of thenar motor units. With this method, the median nerve was stimulated at various sites from the wrist to the elbow. To avoid alternation, only two or three clearly identifiable surface-recorded motor unit action potentials (S-MUAPs) were recruited at each point by incremental stimulation. A total of 10 S-MUAPs, elicited from four to five distinct stimulation points, was used to calculate the average S-MUAP size. By dividing the maximum M-potential size by that value, a motor unit number estimate (MUNE) was derived. In 59 healthy volunteers, from 19 to 87 years old, the mean average S-MUAP size was 87 +/- 27.6 microV.ms and the mean MUNE was 278 +/- 113 motor units. When performed repeatedly, the results were reproducible. The number of motor units declined exponentially with age while average S-MUAP sizes increased only moderately. To assess the validity of the AMPS method, its results were correlated with those obtained using the F-response technique. The correlation coefficient was 0.83 (P < 0.001). [less ▲]

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See detailPriming production of people's names
Valentine, T.; Moore, V.; Brédart, Serge ULg

in Quarterly Journal of Experimental Psychology (1995), 48A

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See detailRecension de l'ouvrage de Daniel Giovannangeli, "La passion de l'origine"
Steinmetz, Rudy ULg

in Revue Internationale de Philosophie (1995)

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See detailConfirmation bias as a social skill
Dardenne, Benoît ULg; Leyens, J.

in Personality & Social Psychology Bulletin (1995), 21

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See detailFactors regulating megakaryocyte progenitor commitment to polyploidization.
Paulus, Jean-Michel ULg; Grosdent, J C; Prenant, M et al

in Comptes Rendus de l'Académie des Sciences. Série III. Sciences de la Vie (1995), 318(3), 381-6

Recognizable megakaryocytes are polyploid cells generated by a clonogenic, diploid progenitor, termed CFU-MKC (colony forming unit, megakaryocyte). In order to quantify polyploidization, ploidy histograms ... [more ▼]

Recognizable megakaryocytes are polyploid cells generated by a clonogenic, diploid progenitor, termed CFU-MKC (colony forming unit, megakaryocyte). In order to quantify polyploidization, ploidy histograms of megakaryocytes determined by microphotometric or flow cytometric measurements of megakaryocyte DNA have generally been used. However these techniques provide no information on the rate of commitment of CFU-MKC to polyploidy. Using a technique of clonal analysis determining the distributions of the number of doublings (NbD) undergone by CFU-MKC before committing to polyploidization, the polyploidization probability of CFU-MKC could be derived. This probability was found to be a constant independent from CFU-MKC mitotic history, since NbD distributions are exponential functions characterized by a constant rate of decay per doubling. By studying the effects of growth factors on polyploidization probability, it was also shown that: (1) this parameter is negatively regulated by growth factors contained in poke-weed or WEHI conditioned media, as well as by erythropoietin; (2) commitment to polyploidization does not require prior CFU-MKC division; (3) bipotent erythroid-megakaryocyte progenitors have a lower polyploidization probability than CFU-MKC; (4) determination of polyploidization probability reflects the activity of growth factors with greater accuracy than megakaryocyte colony count. [less ▲]

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See detailLichens and lichenicolous fungi on Laing Island (Papua New Guinea)
Aptroot, André; Diederich, Paul; Sérusiaux, Emmanuël ULg et al

in Bibliotheca Lichenologica (1995), 57

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See detailLes insuffisances mitrales ischémiques: principes de leur traitement chirurgical
RADERMECKER, Marc ULg; Limet, Raymond ULg

in Revue Médicale de Liège (1995), 50(7), 295-7

L'insuffisance mitrale ischémique est une manifestation peu fréquente de la maladie cotanarienne. Elle constitue par ailleurs une entité relativement mal connue. Il peut s'agir de complications aiguës ou ... [more ▼]

L'insuffisance mitrale ischémique est une manifestation peu fréquente de la maladie cotanarienne. Elle constitue par ailleurs une entité relativement mal connue. Il peut s'agir de complications aiguës ou chroniques de la maladie ischémique. Leur compréhension est facilité par la classification fonctionnelle de Carpentier. A l'occasion de cette revue, nous précisons les indications elles modalités de traitement de ce type d'insuffisance mitrale. [less ▲]

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See detailUrbanisme commercial et géographie
Merenne-Schoumaker, Bernadette ULg

in Revue Belge de Géographie (1995), 2(59), 307-315

The paper proposes a short reflection on the commercial planning issue. Five points will be considered : a definition of the urban planning field, a presentation of the methodological problems, the ... [more ▼]

The paper proposes a short reflection on the commercial planning issue. Five points will be considered : a definition of the urban planning field, a presentation of the methodological problems, the underscoring of the five major current challenges (new balance city center - out of town, central areas revival, traditional unplanned shopping center maintenance (or revival), local and neighbourhood centers maintenance, out of town developments planning), the first steps towards a new commercial policy, the analysis of the connections between commercial planning and geography. [less ▲]

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See detailA Frequency-Domain Processor for ScanSAR Images
Barbier, Christian ULg; Rosello-Guasch, Josep

in Preparing for the Future (1995), 5(4), 6-7

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See detailHow should zoster trials be conducted?
Wood, M. J.; Balfour, Hank; Beutner, Karl et al

in Journal of Antimicrobial Chemotherapy (1995), 36(6), 1089-1101

In 1994, an international group of interested clinicians and biostatisticians met to discuss the design of clinical trials in herpes tester. They agreed that trials in herpes tester should have ... [more ▼]

In 1994, an international group of interested clinicians and biostatisticians met to discuss the design of clinical trials in herpes tester. They agreed that trials in herpes tester should have prospectively agreed definitions of all outcome measures and plans for data analysis. In immunocompetent individuals, in whom pain is the major outcome measure, trials should only include patients over the age of 50 years, and for those recruited within 72 fi of rash onset, should be designed to demonstrate superiority of any new therapy over existing antivirals. The primary endpoint should be time to cessation of pain for at least 4 weeks and, for the purposes of statistical analysis of its duration, the pain associated with herpes tester ought to be considered as a continuum. All other variables, including the incidence of post-herpetic neuralgia and effects upon quality of life should be considered as secondary end-points. Evaluation of treatment effects on primary endpoints should be based upon an intent-to-treat (ITT) analysis and subgroup analysis should be used only to support the findings of the ITT analysis. These elements of good study design should be borne in mind in the evaluation of current and future trails of antiviral drugs in herpes zoster. [less ▲]

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See detailLas palabras póstumas de Albert Camus
Ardissone, Diana; Willson, Patricia ULg

in Espacios de crítica y producción (1995), (16), 63-64

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See detailChimiosensibilité in vivo et in vitro de Plasmodium falciparum à Brazzaville (Congo)
Chandenier, Jacques; Ndounga, Mathieu; Carme, Bernard et al

in Santé : Cahiers d'Etude et de Recherches Francophones (1995), 5(1), 25-29

Various projects were launched in 1993 to monitor the chemosensitivity of Plasmodium falciparum in Congo. Resistance of 34 strains in Brazzaville to chloroquine, quinine and mefloquine and of 35 to ... [more ▼]

Various projects were launched in 1993 to monitor the chemosensitivity of Plasmodium falciparum in Congo. Resistance of 34 strains in Brazzaville to chloroquine, quinine and mefloquine and of 35 to halofantrine was investigated in an in vitro survey using an isotopic micro test. The resistance rates were 61.8, 14.7, 3.0 and 0.0% respectively. Thus, the chemoresistance which first appeared in 1990 is confirmed and is stable in the population. This finding was further confirmed by a parallel in vitro analysis of sensitivity to chloroquine in Brazzaville. A chloroquine monitoring network is now being established throughout the country based on simplified WHO tests of 100 asymptomatic schoolchildren conducted every six months. The first results in 1993, from three Southern regions indicate that parasites are found in 20 to 60% of cases seven days after a standard 3 day treatment with 25 mg/kg, according to the region. The results of in vitro and in vivo tests are very variable. Indeed, the value of such results for these tests for national monitoring is questionable: a more reliable system of identifying true therapeutic failures would be better suited. [less ▲]

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See detailHysteroscopic myomectomy.
Donnez, Jacques; Polet, Roland; Smets, Mireille et al

in Current Opinion in Obstetrics & Gynecology (1995), 7(4), 311-6

Transhysteroscopic myomectomy has proved to be safe and effective with experienced operators. The use of the continuous flow hysteroscope and preoperative monitoring of intrauterine pressure has ... [more ▼]

Transhysteroscopic myomectomy has proved to be safe and effective with experienced operators. The use of the continuous flow hysteroscope and preoperative monitoring of intrauterine pressure has contributed to the prevention of fluid intravasion accidents. Effectiveness has been demonstrated in a number of recently published long-term studies. [less ▲]

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See detailComparison of six serum ferritin immunoassays and isoferritin spectrotypes in malignancies
Vernet, M.; Renversez, J. C.; Lasne, Y. et al

in Annales de Biologie Clinique (1995), 53

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See detailCoexpression of cytokeratin and vimentin in eutopic endometrium and endometriosis throughout the menstrual cycle: evaluation by a computerized method.
NISOLLE, Michelle ULg; Casanas-Roux, Françoise; Donnez, Jacques

in Fertility and Sterility (1995), 64(1), 69-75

Objectives: To evaluate quantitatively cytokeratin and vimentin staining in glandular and stromal cells of eutopic and ectopic endometrium. DESIGN: The investigation of cytokeratin and vimentin was ... [more ▼]

Objectives: To evaluate quantitatively cytokeratin and vimentin staining in glandular and stromal cells of eutopic and ectopic endometrium. DESIGN: The investigation of cytokeratin and vimentin was carried out using the new computerized technology of image analysis. SETTING: University Hospital, Department of Gynecology. PATIENTS: Biopsies were taken from patients undergoing a laparoscopy for infertility (29 endometrial biopsies and 31 biopsies of peritoneal endometriosis). None of them were treated. RESULTS: Cyclic variations of cytokeratin and vimentin staining were noted in eutopic endometrium. The cytokeratin and vimentin staining pattern consistently was lower in ectopic endometrium than in eutopic endometrium. CONCLUSIONS: Endometriotic epithelial and stromal cells undergo a complex program of differentiation giving them histochemical characteristics similar to those observed in endometrium. Such a concomitant expression of antigenicity indicates their close relationship with their mesodermal müllerian origin. [less ▲]

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See detailAssessment of glucose metabolism in humans with the simultaneous use of indirect calorimetry and tracer techniques.
Tappy, L.; Paquot, Nicolas ULg; Tounian, P. et al

in Clinical Physiology (1995), 15(1), 1-12

Concomitant measurements of sytemic glucose delivery and carbohydrate oxidation are frequently performed in human investigations. Systemic glucose delivery (SGD) is usually determined using dilution of ... [more ▼]

Concomitant measurements of sytemic glucose delivery and carbohydrate oxidation are frequently performed in human investigations. Systemic glucose delivery (SGD) is usually determined using dilution of infused glucose tracers; net carbohydrate oxidation rate (net CHOOX) can be calculated from respiratory gas exchanges and urinary nitrogen excretion (indirect calorimetry); alternatively, glucose oxidation can be measured from labelled CO2 production during infusion of carbon-labelled glucose tracers. In this paper, the theory underlying the use of each of these techniques is briefly reviewed and qualitative differences are outlined. SGD represents the sum of hepatic glucogenolysis, gluconeogenesis from amino acids or glycerol, and, according to the glucose tracer used, glucose cycles (glucose-phosphate cycle, fructose-phosphate cycle, Cori and glucose-alanine cycles); systemic delivery of exogenous glucose after oral or i.v. glucose administration is also measured. Net CHOOX represents oxidation of glucose arising from hepatic or muscle glycogen or from exogenous glucose; it does not take into account oxidation of glucose formed from amino acids or glycerol, which is included in net protein or lipid oxidation. In contrast, isotopic determination of glucose oxidation corresponds to oxidation of glucose originating from hepatic glycogen breakdown, of exogenously administered glucose, and of glucose formed from amino acids and glycerol. Non-oxidative glucose disposal, calculated as SGD-net CHOOX, corresponds to the sum of gluconeogenesis from amino acids or glycerol (which are included in net protein and lipid oxidation), glucose cycles, and glycogen synthesis. [less ▲]

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See detailDictyonema interruptum, new for the Pyrenees
Etayo, Javier; Diederich, Paul; Sérusiaux, Emmanuël ULg

in Graphis Scripta (1995), 7

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See detailRespiratory adjustments in unacclimatised horses exercised under hot, humid conditions
Art, Tatiana ULg; Lekeux, Pierre ULg

in Equine Veterinary Journal. Supplement (1995), 18

The purpose of this study was to investigate the effect of a hot and humid environment on the pattern of breathing and the gas exchange in heavily exercising horses. Five healthy fit Standardbred horses ... [more ▼]

The purpose of this study was to investigate the effect of a hot and humid environment on the pattern of breathing and the gas exchange in heavily exercising horses. Five healthy fit Standardbred horses were investigated twice at 8 day intervals, once in temperate conditions (TC) (ambient temperature: 15°C; relative humidity: 55%) and once in hot and humid conditions (HHC) (ambient temperature: 30°C; relative humidity: 75%). The standardised treadmill exercise test consisted of 8 min warm-up and 8 min exercise (1 min at 1.7, 4, 7, 8, 9 and 10 m/s and 2 min at 4 m/s with a 6% slope). Running in HHC induced a significant decrease in peak expired minute volume (VE), oxygen uptake (VO2), VCO2 and oxygen pulse, while RQ remained unchanged and PACO2 increased. The changes in skin temperature (ST), i.e. the difference between ST at rest and at 10 m/s, was dramatically higher in HHC. The test induced changes, i.e. the differences between the values before and after the test, in cortisol, (beta-endorphins and plasma lactate (LA) values after the test were significantly higher. This study showed that performing a strenuous exercise in hot, humid conditions in unacclimatised horses induced a reduction of the aerobic capacity, i.e. decrease of the V02 and increase of LA production. A relative hypoventilation could be partly responsible for this observation, but all the steps of the oxygen transport from the pulmonary ventilation to the muscle metabolism could also potentially be impaired in such conditions [less ▲]

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See detailAbility of Bronchodilators to Prevent Bovine Experimental Respiratory Distress
Genicot, Bruno; Lambert, Philippe ULg; Votion, Dominique ULg et al

in Veterinary Research (1995), 26(4), 276-283

This cross-over trial involving 6 Blue Belgian double-muscled calves aimed to investigate whether ipratropium bromide inhaled alone or in combination with clenbuterol hydrochloride could prevent the ... [more ▼]

This cross-over trial involving 6 Blue Belgian double-muscled calves aimed to investigate whether ipratropium bromide inhaled alone or in combination with clenbuterol hydrochloride could prevent the dramatic clinical and pulmonary disturbances that are observed during an experimentally induced bronchoconstriction. Inhaled bronchodilators significantly influenced the clinical and functional responses of bovines subjected to a 5-hydroxytryptamine perfusion. However, despite a mean (standard error) wash-out period of 11.2 (3.1) and 7.5 (0.9) d after the 1st and the 2nd one-day challenges, respectively, first-order carry-over effects (ie those remaining from the previous treatment), effects of the period during which the treatment was allocated and interaction effects did not allow a definitive interpretation of overall treatment differences. [less ▲]

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See detailExperimenteel onderzoek naar het brandgedrag van kolommen in gewapend beton
Dotreppe, Jean-Claude ULg; Franssen, Jean-Marc ULg; Baus, Raymond et al

in Infrastructuur in het Leefmilieu (1995), 6

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See detailVariable location of the enterotoxin gene (cpe) in Clostridium perfringens.
Cornillot, Emmanuel; Saint-Joanis, Brigitte; Daube, Georges ULg et al

in Molecular Microbiology (1995), 15

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See detailLa pratique du traitement de texte appliquée à la conception de documents scientifiques
Deltenre, Alain; Claustriaux, Jean-Jacques ULg; Austraet, J.

in Notes de Statistique et d'Informatique (1995), (1), 1-27

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See detailThe Dissociative Ionization of Carbon Dioxide below 21.22 eV. A high Resolution PIPECO spectroscopic investigation.
Locht, Robert ULg

in International Journal of Mass Spectrometry and Ion Processes (1995), 148

The photoion-photoelectron spectrum of O+, CO+ and CO2+ has been investigated under high resolution conditions. The O+ ion production is found not to be restricted to the CO2+ (C2Sigma+/g,0,0,0 ... [more ▼]

The photoion-photoelectron spectrum of O+, CO+ and CO2+ has been investigated under high resolution conditions. The O+ ion production is found not to be restricted to the CO2+ (C2Sigma+/g,0,0,0) predissociation. The (0,1,0) and (1,0,0) levels are clearly shown to be involved. The CO+ ion production involves all the vibrational states reached in the Franck-Condon region, i.e. up to (2,0,1) at 19.94 eV. The CO2+ molecular ion does not survive the predissociation in the entire range covered in the present work. [less ▲]

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See detailRelative importance of the trophic and direct pathways on PCB contamination in the rotifer species Brachionus calyciflorus (Pallas)
Joaquim-Justo, Célia ULg; Gosselain, V; Descy, Jean-Pierre et al

in Hydrobiologia (1995)

To determine the contribution of food ingestion (trophic pathway) to PCB contamination of zooplankton in the river Meuse (Belgium), we used 14 C-labelled algae (Dictyosphaerium ehrenbergianum) to measure ... [more ▼]

To determine the contribution of food ingestion (trophic pathway) to PCB contamination of zooplankton in the river Meuse (Belgium), we used 14 C-labelled algae (Dictyosphaerium ehrenbergianum) to measure ingestion and assimilation rates in the rotifer species Brachionus calyciflorus . When the concentration of algae in the culture medium varied from 20 103 to 200 103 algal cells ml -1 (0.12 to 1 .18 mg C 1 - '), the Brachionus calyciflorus ingestion rate varied from 0 .25 ± 0 .12 to 1 .52 ± 0 .43 ng C ind -1 h-1 at 15 °C and from 0 .74 ± 0 .17 to 5 .93 ± 0.61 ng Cind-' h-1 at 20 °C . The assimilation efficiency (ratio of the assimilation rate to the ingestion rate) measured in a culture medium containing 200 103 algal cells ml`' was 55 .7 ± 5.8%. Since the PCB concentration measured in the phytoplankton of the river Meuse is about 3 pg PCBs g -1 D.W., the estimated PCB contamination of zooplankton ascribable to the trophic pathway ranges from 0 .22 ± 0 .17 to 1 .31 ± 0.77 jag PCBs g -1 D.W. at 15 °C and from 0.64 ± 0 .34 to 5 .10 ± 2 .10 pg PCBs g -1 D. W. at 20'C . The lower figure based on measurements effected at 20 ° C is comparable to the actual level measured in zooplankton samples collected in the river Meuse (0 .69 ± 0.20 pg PCBs g`' D.W.) . The applicability of the formula used in our estimate was checked in a 48-hour in vitro experiment in which the rotifers were fed contaminated algae . The PCB accumulation measured in the rotifers was found to coincide with the calculated PCB contamination . Additional experiments were carried out to determine the contribution of the direct pathway to PCB contamination of zooplankton living in the river Meuse (0.02 pg PCBs 1-1 of water; average dissolved organic matter : 3 mg C 1 -1 ). The PCB concentration in zooplankton resulting from direct uptake of PCBs from the water was estimated at 0 .19 ± 0.05 jug PCBs g -1 D.W. These results show that in zooplankton living in polluted ecosystems, PCBs are likely to accumulate via the trophic pathway to concentrations up to 30 times higher than by direct contamination . Furthermore, our estimates of PCB contamination via the trophic pathway coincide quite well with actual concentrations measured in situ . [less ▲]

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See detailExpertise scientifique et action publique : le cas du changement climatique dans trois pays européens
Mormont, Marc ULg; Dasnoy, Christine ULg

in Natures Sciences Sociétés (1995), 3(&), 16-25

L'expertise scientifique du changement climatique fait l'objet d'une réception très différente en France, en Allemagne et en Belgique. cet état de fait semble lié à la fois à des configurations politiques ... [more ▼]

L'expertise scientifique du changement climatique fait l'objet d'une réception très différente en France, en Allemagne et en Belgique. cet état de fait semble lié à la fois à des configurations politiques différentes, à des procédures spécifiques mais aussi aux stratégies des scientifiques lesquelles dépendent de leur anticipation de cette réception. Cette stratégie des "sources" d'information ne laisse pas de poser des questions sur l'expertise. [less ▲]

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See detailAmineptine, response timing and time discrimination in the albino rat
Lejeune, Helga ULg; Hermans, Isabelle ULg; Mocaer, E. et al

in Pharmacology, Biochemistry and Behavior (1995), 51(2-3, Jun-Jul), 165-173

Experiment 1 recorded the effects of single (doses of 1, 5, 10, and 20 mg/kg) and repeated intraperitoneal injections (10 mg/kg) of amineptine (a tricyclic antidepressant drug) on the performance of ... [more ▼]

Experiment 1 recorded the effects of single (doses of 1, 5, 10, and 20 mg/kg) and repeated intraperitoneal injections (10 mg/kg) of amineptine (a tricyclic antidepressant drug) on the performance of albino rats in differential reinforcement of low rate (DRL) of 30 s, fixed-interval (FI) of 60 s, and signalled continuous reinforcement (CRF-SD) schedules. In the second experiment, the effects of repeated (10 mg/kg) and single injections (20 mg/kg) were assessed on the discrimination of the duration of auditory stimuli (2 and 8 s). A dose-related increase in response rates was observed in FI and DRL, correlating with a dose-related impairment in the temporal regulation of performance. However, the drug remained without effect on duration discrimination. In other respects, decreases in response latency in CRF-SD or duration discrimination tended to indicate that the drug improved vigilance and reactivity to extraneous significant stimuli. Interpretations in terms of sensitization, tolerance, or dependency could be discarded. Our data support the hypothesis that drug effects on temporal regulation in FI and DRL are secondary to a nonspecific activation of motor activity. They question the plausibility of an antidepressant effect of the drug in humans via modulation of a timing mechanism. [less ▲]

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See detailFast Routine Production of L-[11C-methyl]methionine with Al2O3KF
Schmitz, Frédéric; Plenevaux, Alain ULg; Del-Fiore, Guy et al

in Applied Radiation & Isotopes (1995), 46(9), 893-897

No-carrier-added (nca) L-[11C-methyl]methionine was prepared via the very fast S-alkylation of L-homocysteine adsorbed on AI203/KF with [11C]iodomethane at room temperature in ethanol. The alkylation was ... [more ▼]

No-carrier-added (nca) L-[11C-methyl]methionine was prepared via the very fast S-alkylation of L-homocysteine adsorbed on AI203/KF with [11C]iodomethane at room temperature in ethanol. The alkylation was realized with a radiochemical yield of 94 +/- 4% EOB (n = 20). More than 90% (n = 20) of the precursor L-homocysteine remained adsorbed on the solid support and was eliminated by a simple filtration. After reaction, neither racemization nor by-product were detected. The purification process was thus limited to a C18 Sep-Pak followed by an alumina Sep-Pak. The radiochemical purity measured on the final solution was shown to be > 99%. The only chemical contaminant was L-homocysteine (+ 10 µg). With this new technique, L-[11C-methyl]methionine was ready for injection within 10 min from [11C]CO2 with a specific activity ranging around 37 + 5.6 GBq (1 +/- 0.15 Ci)//tmol EOB. Through this procedure L-[11C-methyl]methionine can be prepared without preparative HPLC purification, This is an important simplification for the fast routine production of one of the most widely used radiopharmaceutical compounds for PET. [less ▲]

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See detailThe interchromatin granules.
Thiry, Marc ULg

in Histology and Histopathology (1995), 10(4), 1035-45

In the present review, we report on the data obtained on the most prominent elements observed in the interchromatin spaces: the interchromatin granules (IGs). Special emphasis is placed on the recent ... [more ▼]

In the present review, we report on the data obtained on the most prominent elements observed in the interchromatin spaces: the interchromatin granules (IGs). Special emphasis is placed on the recent contributions of immunocytochemical and in situ hybridization methods towards elucidating the composition and the behavior of these nuclear substructures during the cell cycle. The possible roles of IGs in the cell nucleus are also discussed. [less ▲]

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See detailGH receptor gene TaqI RFLP and milk traits in Italian Holstein-Friesian and Simmental cattle.
Falaki, Mohamed; Renaville, Robert ULg; Sneyers, Myriam et al

in Journal of Animal Science (1995), 73(Suppl 1), 113

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See detailSYNTHESIS OF SIO2-TIO2 XEROGELS BY SOL-GEL PROCESS
Pirson, Anne-Marie ULg; MOHSINE, Abdel; Marchot, Pierre ULg et al

in Journal of Sol-Gel Science and Technology (1995), 4(3), 179-185

A new method to synthesize SiO2-TiO2 gels by sol-gel process has been developed. This technique uses tetraisopropylorthotitanate [Ti(O'Pr)(4)] and tetraethylorthosilicate [TEOS]: they are mixed in the ... [more ▼]

A new method to synthesize SiO2-TiO2 gels by sol-gel process has been developed. This technique uses tetraisopropylorthotitanate [Ti(O'Pr)(4)] and tetraethylorthosilicate [TEOS]: they are mixed in the same solvent and then directly hydrolysed. This one-step reaction is possible because of the use of 2-methoxyethanol, a protic polar solvent. This alcohol plays two different specific roles: it acts as a solvent as well as a stabilizer of titanium alkoxide towards the hydrolysis-precipitation reaction. So, by an accurate adjustment of the quantity of methoxyethanol in the mixture, we can control the reactivity of the titanium precursor. Monolithic and transparent xerogels were obtained whatever the composition. Three monolithic SiO2-TiO2 gels containing 20, 50 and 75 mol% of TiO2 were prepared and studied in details. By using the TG-DSC analysis, we can follow the evolution of the loss of water and organic residues. The structural evolution of gels during calcination is characterized by IR spectroscopy and X-Ray diffraction. [less ▲]

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See detailProximal Migration of Vena Caval Filters: Report of Two Cases with Operative Retrieval
DEFRAIGNE, Jean ULg; Vahdat, Olivier; Lacroix, Hendrik et al

in Annals of Vascular Surgery (1995), 9(6), 571-5

Operative retrieval of two proximally migrated vena caval filters was performed in two patients, ages 42 and 45 years, respectively. In the first patient the filter was encrusted in the right ventricle ... [more ▼]

Operative retrieval of two proximally migrated vena caval filters was performed in two patients, ages 42 and 45 years, respectively. In the first patient the filter was encrusted in the right ventricle, and in the second one the filter was found in the pulmonary artery. Both filters were retrieved under cardiopulmonary bypass via an incision in the right atrium and the pulmonary artery, respectively. These two observations underscore the risk of increased unwarranted indications and consequent higher complication rates of vena caval filters. [less ▲]

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See detailLocalization of varicella-zoster virus nucleic acids and proteins in human skin.
Nikkels, Arjen ULg; Debrus, S.; Sadzot-Delvaux, Catherine ULg et al

in Neurology (1995), 45(12 Suppl 8), 47-9

The pathogenic mechanisms involved in varicella-zoster virus (VZV) infections remain elusive. The pattern of cutaneous distribution of the IE63 protein and of the gpI (gE) and gpII glycoproteins with ... [more ▼]

The pathogenic mechanisms involved in varicella-zoster virus (VZV) infections remain elusive. The pattern of cutaneous distribution of the IE63 protein and of the gpI (gE) and gpII glycoproteins with their corresponding genome sequences during VZV infections was studied by immunohistochemistry and in situ hybridization. Skin biopsy specimens were obtained from immunocompetent and immunocompromised patients with varicella, herpes zoster, or atypical VZV lesions. The first evidence for VZV infection consisted of the presence of IE63 in keratinocytes. In the vesicles and pustules, the viral transcripts gpI, gpII, and IE63 and the corresponding nucleic acids for gpI and gpII were identified in keratinocytes, sebocytes, Langerhans cells, dermal dendrocytes, monocytes/macrophages, and endothelial cells. The gpI and gpII glycorpoteins were essentially located on the cellular membranes while IE63 expression was generally restricted to the nuclei. In three biopsies of early herpes zoster, viral proteins were disclosed in dermal nerves and in perineurial type I dendrocytes. This was never encountered in varicella. Vasculitic changes and endothelial cell involvement were more prominent in varicella than in herpes zoster. It is concluded that the secondary viremia in varicella that affects the dermal endothelial cells is followed by a cell-to-cell spread to keratinocytes. In herpes zoster, the viral progression through cutaneous nerves primarily extends to the pilosebaceous units with a secondary involvement of epidermal keratinocytes, followed by a further spread to dermal cells. [less ▲]

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See detailEn Belgique, diverses modalités de pâturage pour des taurillons avant finition à l'auge
Dufrasne, Isabelle ULg; Gielen, Marc ULg; Limbourg, Pierre et al

in Fourrages (1995), 141

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See detailBiotinidase Km-variants: detection and detailed biochemical investigations
Suormala, T.; RAMAEKERS, Vincent ULg; Schweitzer, S. et al

in Journal of inherited metabolic disease (1995), 18(6), 689-700

We describe a simple method for the detection of biotinidase Km-variants and detailed biochemical investigations in 5 such patient. They were detected among 103 patients with plasma biotinidase activity ... [more ▼]

We describe a simple method for the detection of biotinidase Km-variants and detailed biochemical investigations in 5 such patient. They were detected among 103 patients with plasma biotinidase activity which ranged from undetectable to 30% of the mean normal value. Two different types of biotinidase Km-variants were found. (1) In 3 infants biotinidase had a single 105-430-fold elevated Km for biocytin. Biotinidase showed very low activities (0.2-4% of the mean normal value) in the routine colorimetric assay and was not functional in vivo. Accordingly, these patients presented with classical clinical illness. (2) In two patients biotinidase showed biphasic kinetics indicating the presence of one component with a normal Km and reduced Vmax (1.7% and 12%), and another with 330- and 59-fold elevated Km, respectively. In these two patients, biotinidase proved to be at least partially functional in vivo. However, the first patient developed severe symptoms and biotin deficiency late, at the age of 10-15 years, and the second had marginal biotin deficiency at the age of 2 years but no clinical symptoms. Comparative studies revealed that both patients had more severe biotin deficiency than age-matched patients with similar levels of residual biotinidase activity and a single normal Km. Therefore, all patients with residual biotinidase activity should be evaluated for the presence of a Km-mutation, since such patients should be treated with biotin. These can easily be detected by including a second substrate concentration (1.5 mmol/L) in the routine colorimetric biotinidase assay which is performed with 0.15 mmol/L biotin. Increased activity with the higher substrate concentration indicates the presence of a Km-mutation. Detailed kinetic studies are needed to evaluate the distinct forms of Km-variants. [less ▲]

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See detailAutonomie de la volonté et statut personnel
Carlier, Jean-Yves ULg

in Cahiers des droits maghrébins (1995)

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See detailLe rôle de l'industrie de l'assurance dans le pilotage de la sécurité privée et de la politique de prévention
Lemaître, André ULg

in Déviance et Société (1995), 19(N°2), 159-168

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See detailEffects of glucocorticoids and sympathomimetic agents on basal and insulin-stimulated glucose metabolism.
Paquot, Nicolas ULg; Schneiter, P.; Jequier, E. et al

in Clinical Physiology (1995), 15(3), 231-40

The mechanisms responsible for glucocorticoid-induced insulin resistance remain unclear. Glucocorticoids show several interactions with the sympatho-adrenal system which may contribute to this decrease in ... [more ▼]

The mechanisms responsible for glucocorticoid-induced insulin resistance remain unclear. Glucocorticoids show several interactions with the sympatho-adrenal system which may contribute to this decrease in insulin sensitivity: they enhance the synthesis and actions of catecholamines, but abolish insulin-induced activation of muscle sympathetic nerve activity. The present study was performed in order to investigate the effects of the interactions between glucocorticoids and the sympatho-adrenal system on insulin sensitivity. Basal and insulin-stimulated glucose metabolism was measured in healthy human subjects during four 2-h clamp studies as follows: control (C); after taking oral dexamethasone (2 mg daily) for 2 days (D); after taking oral ephedrine sulphate (40 mg daily) for 2 days (E); and after taking dexamethasone+ephedrine (D+E). Glucose uptake, production and oxidation were calculated from plasma 13C glucose and exhaled 13CO2 during constant tracer infusion of U-13C glucose. Basal glucose production, utilization and oxidation were similar in all four studies. During hyperinsulinaemia, glucose uptake was reduced by 51.5% with treatment D, by 25.9% with treatment E, and by 49.6% with D+E. Glucose oxidation was reduced by 54.0% with treatment D, by 24.0% with treatment E, and by 57.2% with D+E. Hepatic glucose production was completely suppressed in all four studies. It is concluded that both dexamethasone and ephedrine decrease insulin-mediated glucose uptake and oxidation. Co-administration of ephedrine does not suppress the glucocorticoid-induced alterations of glucose metabolism. This indicates that glucocorticoid-induced insulin resistance is not related to the inhibition of muscle sympathetic nerve activity. These results suggest instead that glucocorticoids and sympathomimetic agents may impair glucose metabolism by common actions. [less ▲]

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See detailINVESTIGATION OF THE ELECTRICAL-RESISTIVITY BEHAVIOR BETWEEN THE KOSTERLITZ-THOULESS TEMPERATURE AND THE GINZBURG-LANDAU TEMPERATURE IN SPRAY-DRIED BULK BI2SR2CACU2O8+D - THE ROLE OF 2-DIMENSIONAL FLUCTUATIONS AND DEFECTS
Ausloos, Marcel ULg; Bougrine, Hassan ULg; DUVIGNEAUD, P. H. et al

in Physica C (1995), 251(3-4), 337-347

The resistive transition R(T) between the Kosterlitz-Thouless temperature and the Ginzburg-Landau temperature was studied in spray-dried bulk Bi2Sr2CaCu2O8+d superconductors for a magnetic-field range ... [more ▼]

The resistive transition R(T) between the Kosterlitz-Thouless temperature and the Ginzburg-Landau temperature was studied in spray-dried bulk Bi2Sr2CaCu2O8+d superconductors for a magnetic-field range between 0 and 0.3 T. The samples were prepared by the spray-drying technique with Bi2+xSr2-x-yCa2+yCu2O8+d for x = y = 0.05 or 0.1 as a starting composition here. The data analysis was performed assuming various resistive laws previously proposed. When numerically analyzed in terms of a two-dimensional Kosterlitz-Thouless theory the results lead to remarkable quantitative agreement. This implies that the R(T) behavior can be described within a picture of a highly two-dimensional behavior of macroscopic fluctuations of vortex-antivortex depairing type. The role of defects or inhomogeneities in the resistive behavior is outlined. [less ▲]

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See detailBehavior of interchromatin granules during the cell cycle.
Thiry, Marc ULg

in European Journal of Cell Biology (1995), 68(1), 14-24

We investigated at the ultrastructural level, by different cytochemical and immunocytological approaches, the behavior of interchromatin granules (IGs) during interphase and mitosis in two cell lines (HEp ... [more ▼]

We investigated at the ultrastructural level, by different cytochemical and immunocytological approaches, the behavior of interchromatin granules (IGs) during interphase and mitosis in two cell lines (HEp-2 and Ehrlich tumor cells). Identical results were found in all two cell types. In interphase cells, IGs group into irregular clusters of varying size. They are frequently associated with coiled bodies and homogeneous fibrillar bodies. Analysis of serial sections reveals that IG clusters occupy distinct regions within the nucleoplasm. During prophase, the aggregation of granules in these clusters gives rise to compact, spherical, granular structures. These disperse in the mitotic cytoplasm at the breakdown of the nuclear envelope. At early telophase, some of them come into close contact with the periphery of reforming nuclei. IG clusters reappear in the daughter nuclei only after the chromosomes have decondensed during late telophase. Concomitantly, the cytoplasmic granular structures disappear. During the cell cycle, IG are silver-stainable and EDTA-positive. They are also constantly labeled by the polyadenylate nucleotidyl transferase-immunogold technique for detecting RNA. These results support the view that IGs persist throughout the whole cell cycle. [less ▲]

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See detailLes troubles obsessionnels compulsifs
Triffaux, Jean-Marc ULg

in stratégie thérapeutique (1995)

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See detailTreatment of dysfunctional bleeding and fibroids by advanced endoscopic techniques with the Nd:YAG laser: from the present to the future.
Donnez, Jacques; Polet, Roland; Anaf, V. et al

in Bailliere's Clinical Obstetrics & Gynaecology (1995), 9(2), 329-45

Both the electrical current of the resectoscope and the energy of the Nd:YAG laser have been effective tools in the destruction of endometrial tissue to a sufficient depth to avoid regeneration. GnRH ... [more ▼]

Both the electrical current of the resectoscope and the energy of the Nd:YAG laser have been effective tools in the destruction of endometrial tissue to a sufficient depth to avoid regeneration. GnRH-agonist therapy effects a decrease in the total uterine cavity area which facilitates surgical treatment and reduces the risk of fluid overload syndrome. The recurrence rate of meno/metrorrhagia is higher when the uterine cavity is more than 10 cm2. The use of GnRH-agonists represents an adjunct for preoperative reduction of submucosal myomas so that subsequent hysteroscopic myomectomy is possible. A two-step hysteroscopic therapy combined with GnRH-agonist therapy is performed when the largest portion of the submucosal myoma is located in the uterine wall. In cases of numerous submucosal and intramural myomas, a laparoscopic supracervical hysterectomy is performed because of the high risk of recurrence after the hysteroscopic procedure. [less ▲]

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See detailTroubles respiratoires subcliniques et intolérance à l'effort chez l'athlète équin
Art, Tatiana ULg; Ghafir, Y.; Lekeux, Pierre ULg

in Point Vétérinaire (1995), 27

In the sports horse, respiratory disorders - even subclinical - may lead to a decline in performance. This article gives an overview of several physiological and pathological characteristics of the equine ... [more ▼]

In the sports horse, respiratory disorders - even subclinical - may lead to a decline in performance. This article gives an overview of several physiological and pathological characteristics of the equine respiratory system, as well as the aetiology, symptoms, prevention and necessary treatment of the most common respiratory disorders encountered in equine practice (11 photos, 3 figures, 1 table, 4 boxes, 39 references) [less ▲]

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See detailLa coarctation de l'aorte isthmique (a l'exception des urgences néonatales)
Limet, Raymond ULg

in Revue Médicale de Liège (1995), 50(7), 298-304

Même quand elle est une lésion isolée, la CA est une maladie grave qui altère l'espérance de vie. Les causes de mortalité sont les complications liées à l'hypertension, la rupture spontanée au niveau des ... [more ▼]

Même quand elle est une lésion isolée, la CA est une maladie grave qui altère l'espérance de vie. Les causes de mortalité sont les complications liées à l'hypertension, la rupture spontanée au niveau des dilatations pré- et poststénotiques, au niveau des intercostales, et les anévrysmes disséquants. Le traitement chirurgical, par résection-anastomose ou interposition de greffe, introduit il y a plus de 50 ans, est obéré d'une mortalité faible chez l'adulte (1,3 %). Il ne normalise pas toutefois l'espérance de vie du patient opéré, qui reste un patient à haut risque. Les complications tardives sont proportionnelles à l'importance de l'hypertension préopératoire et à l'âge du patient au moment de l'opération. La guérison de l'hypertension est mieux assurée si le patient a été opéré dans l'enfance. Le taux de resténose est élevé pour les CA opérées avant l'âge de deux ans. Un suivi cardio-vasculaire est indispensable chez tout opéré. [less ▲]

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See detailStochastic generation of precipitation and effect on vegetation net primary production
Hubert, Benoît ULg; François, Louis ULg; Warnant, Pierre ULg

in Global Energy and Water Cycle Experiment news (1995), 5

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See detailAdvanced laparoscopic surgery for the removal of rectovaginal septum endometriotic or adenomyotic nodules.
Donnez, Jacques; NISOLLE, Michelle ULg

in Bailliere's Clinical Obstetrics & Gynaecology (1995), 9(4), 769-74

In the pelvis, three different forms of endometriosis (Donnez et al, 1992) must be considered: (1) peritoneal, (2) ovarian, (3) rectovaginal septum. By evaluation of the mitotic activity and the stromal ... [more ▼]

In the pelvis, three different forms of endometriosis (Donnez et al, 1992) must be considered: (1) peritoneal, (2) ovarian, (3) rectovaginal septum. By evaluation of the mitotic activity and the stromal vascularization, we have recently suggested (Nisolle et al, 1993) that peritoneal red lesions were the most aggressive form of the disease and progress to the so-called typical or black lesion, which must be considered as an enclosed implant surrounded by fibrosis. This type of infiltration must be clearly differentiated from the rectovaginal endometriotic nodule. Koninckx (1993) recently described three types of deep-infiltrating endometriosis: deep-infiltrating endometriosis of type I is a rather large lesion in the peritoneal cavity, infiltrating conically with the deeper parts becoming progressively smaller. It has been suggested that this type of endometriosis is caused by infiltration. In type II lesions, the main feature is that bowel is retracted over the lesion which thus becomes deeply situated in the rectovaginal septum although not actually infiltrating it. Type III lesions are the deepest and most severe. They are spherically shaped, situated deep in the rectovaginal septum, often only visible as a small typical lesion at laparoscopy or often not visible at all. This lesion is often more palpable than visible and is acutely tender if the patient is examined at the time of menstruation, and gives rise to severe dyspareunia. In our experience there are two different types of 'deep-infiltrating endometriosis': 1. True deep-infiltrating endometriosis caused by the invasion of a very active peritoneal lesion deep in the retroperitoneal space. In cases of lateral peritoneal invasion, uterosacral ligaments can be involved as well as the anterior wall of the rectosigmoid bowel junction resulting in a retraction, adhesions and secondary obliteration of the cul-de-sac. 2. Pseudo deep-infiltrating endometriosis or adenomyosis of the rectovaginal septum. This lesion originates from the rectovaginal septum tissue and consists essentially of smooth muscle with active glandular epithelium and scanty stroma. In our study, the rectovaginal nodule was histologically similar to an adenomyoma (Zaloudek and Norris, 1987). It was a circumscribed, nodular aggregate of smooth muscle, endometrial glands and endometrial stroma. As in the 'adenomyoma', secretory changes were frequently absent in 'endometriotic' rectovaginal nodules. The invasion of the muscle by a very active glandular epithelium, without stroma, proved that the stroma is not necessary for invasion in this particular type of pathology called adenomyosis. In some instances, it can be seen that the vaginal pluristratified epithelium was replaced by a glandular epithelium. The fact that ciliated cells were present and the co-expression of both vimentin and cytokeratin (Donnez and Nisolle, personal communication) proved the Mullerian origin of the nodule, where certain histological characteristics are completely different to those observed in peritoneal lesions (Nisolle et al, 1990). In our series, deep fibrotic tissue assumed to contain endometriosis was excised or vaporized from the anterior rectum with the aid of multiple rectovaginal examinations. Cul-de-sac dissection was followed by excision of deep fibrotic endometriosis, without cul-de-sac reconstruction. In three cases, the bowel lumen was entered. A comprehensive laparoscopic procedure, while not eradicating all the endometriosis, may result in considerable pain relief or a desired pregnancy. [less ▲]

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See detailSOURCE STRATEGIES AND THE MEDIATIZATION OF CLIMATE-CHANGE
Mormont, Marc ULg; Dasnoy, Christine ULg

in Media, Culture & Society (1995), 17(1), 49-64

A wide approach to the problem of science-media relations is taken in this study of the visibility of science in three >European countries. Differences of national cultures within France, Germany and ... [more ▼]

A wide approach to the problem of science-media relations is taken in this study of the visibility of science in three >European countries. Differences of national cultures within France, Germany and Belgium hod the key to the analysis. This paper explores the impact on the media's representation of climate change that derives from the variations in the balance of power between the press, its scientific sources and other actors, especially pressure groups whoa have interest in how science is represented. France and Germany are shown to have very different approaches scignificantly in distinctive models of the role of media held by scinetists. These models look to be based in what is termed a "spontaneous media sociology" that frame the webs of relations between media and their sources and have a feedback effect oin them. [less ▲]

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See detailDinant/Falmignoul: Abri du Pape
Noiret, Pierre ULg

in Chronique de l'Archéologie wallonne (1995), 3

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