References of "1997"
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See detailEpidémie à Acinetobacter anitratus: un réservoir inédit
MELIN, Pierrette ULg

Conference (1997, November 18)

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See detailMethod and device for synthesizing labeled compounds
Lemaire, Christian ULg; Damhaut, Philippe; Monclus, Michel et al

Patent (1997)

A method for synthesizing compds. labeled with any isotopic element is disclosed. The method comprises the steps of prepg. the labeling agent, labeling a precursor in the form of a protected substrate ... [more ▼]

A method for synthesizing compds. labeled with any isotopic element is disclosed. The method comprises the steps of prepg. the labeling agent, labeling a precursor in the form of a protected substrate, pre-​purifying and deprotecting same, and forming a final soln. of the resulting compd. The deprotection step, in which the labeled precursor is converted into a labeled compd., is performed directly on a solid medium in a column or a cartridge. A device for synthesizing the labeled compd. according to said method is also disclosed. Thus, 2-​[18F]​fluoro-​2-​deoxy-​D-​glucose and 1,​3,​4,​6-​tetra-​O-​acetyl-​2-​trifluoromethanesulfonyl-​β-​D-​mannopyranose were prepd. [less ▲]

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See detailColloquium entitled: “The Dynamics of Social Integration and Social Exclusion at the Neighbourhood Level”
Martiniello, Marco ULg; Body-Gendrot, Sophie

Scientific conference (1997, November 06)

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See detailTemporality and actionality in Egyptian (Middle and Late Egyptian)
Winand, Jean ULg

Scientific conference (1997, November 06)

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See detailAmélioration de l'efficacité de l'azote dan sla production fourragère et sa valorisation par les ruminants
Beckers, Yves ULg; Destain, Jean-Pierre ULg; Decruyenaere, Virginie et al

Scientific conference (1997, November 05)

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See detailThe boundary of "life" for a self-organized critical evolution: the role of the interaction range
Vandewalle, Nicolas ULg; Ausloos, Marcel ULg

in Physica A: Statistical Mechanics and its Applications (1997), 245(3-4), 494-502

The dynamics of a tree-like evolution is investigated as a function of the range ii of the interactions between competing entities which are located at the extremities of the branches. Speciation ... [more ▼]

The dynamics of a tree-like evolution is investigated as a function of the range ii of the interactions between competing entities which are located at the extremities of the branches. Speciation (branching) events are supposed to be driven by extremal dynamics. Extinction events are allowed and controlled by a parameter r. a transition between self-organized critical and frozen evolution occurs at some well-defined critical value r(c)(k). Surprisingly, the critical r(c) value behaves as a power of the range k(r(c) similar to k(-delta)) with an exponent S = -0.46+/-0.03. Moreover, the asymptotic case k = +infinity is herein exactly solved. The dynamics for k = +infinity is not critical and does not present any transition in contrast with finite k cases. [less ▲]

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See detailObserved Periods of Ap and Bp stars (Catalano+ 1998)
Catalano, F. A.; Renson, Pierre ULg

in VizieR Online Data Catalog (1997), 3199

A catalogue of all the periods published up to 31 October 1996 on 364 CP stars is presented; it supersedes the previous version (catalog <III/152>). The paper version (catalog.tex) is arranged in three ... [more ▼]

A catalogue of all the periods published up to 31 October 1996 on 364 CP stars is presented; it supersedes the previous version (catalog <III/152>). The paper version (catalog.tex) is arranged in three tables: the bulk of the data, i.e. those referring to CP2, CP3, and CP4 stars, are given in Table 1, while the data concerning He-strong stars are given in Table 2 and those for eclipsing or ellipsoidal variables are collected in Table 3. Notes are also provided at the end of each table, mainly about duplicities. The machine-readable version was arranged in two main parts: the main parameters of the 364 stars (identifiers and names, positions, spectral types, magnitudes and peculiarities) are tabulated in the file 'stars'; periods and the of the observed variations (light, spectrum, magnetic field, etc.) are listed in the 'periods' file. Two other files contains the notes and the references. (3 data files). [less ▲]

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See detailQuasar polarization (Hutsemekers 1998)
Hutsemekers, Damien ULg

Textual, factual or bibliographical database (1997)

The table contains optical polarization data for a sample of 170 moderate to high-redshift quasars (1 data file).

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See detailOptical Spectroscopy of EZ Canis Majoris: Indication for Large-Scale Structures in a Wolf-Rayet Wind
Morel, Thierry ULg; St-Louis, Nicole; Marchenko, Sergey V

in Astrophysical Journal (1997), 489

In the paper "Optical Spectroscopy of EZ Canis Majoris: Indication for Large-Scale Structures in a Wolf-Rayet Wind" by Thierry Morel, Nicole St-Louis, and Sergey V. Marchenko (ApJ, 482, 470 [1997]), there ... [more ▼]

In the paper "Optical Spectroscopy of EZ Canis Majoris: Indication for Large-Scale Structures in a Wolf-Rayet Wind" by Thierry Morel, Nicole St-Louis, and Sergey V. Marchenko (ApJ, 482, 470 [1997]), there are several errors that should be corrected. In the legends to Figures 3 and 6 and on page 483, 55% should read 99%. The revised version of Figure 12 given here replaces Figure 12 in the paper. [less ▲]

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See detailL'hyperaldostéronisme primaire. Mise au point et traitement raisonnés.
Baudoin, Béatrice ULg; Hamoir, Etienne ULg; Defechereux, Thierry et al

in Revue Française d'Endocrinologie Clinique, Nutrition, et Métabolisme (La) (1997), 38(6), 555-568

Depuis la découverte par Jérôme Conn, en 1954, de l'adénome sécréteur d'aldostérone (ou aldostéronome), neuf variétés ou associations particulières d'hyperaldostéronisme primaire ont été décrites. La ... [more ▼]

Depuis la découverte par Jérôme Conn, en 1954, de l'adénome sécréteur d'aldostérone (ou aldostéronome), neuf variétés ou associations particulières d'hyperaldostéronisme primaire ont été décrites. La manifestation principale de ce désordre endocrinien est l'hypertension artérielle, réfractaire aux thérapeutiques habituelles. Cependant, certains types d'hyperaldostéronisme sont sensibles à la chirurgie qui éradique cette hypertension et ses conséquences. Il importe donc de distinguer ces différentes variétés grâce aux moyens d'investigations actuellement à notre disposition afin d'appliquer le traitement le plus judicieux dans chaque cas. [less ▲]

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See detailOceanological applications of stable isotope ratios
Dauby, Patrick ULg

Scientific conference (1997, November)

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See detailHsv-1 Thymidine Kinase Gene Therapy for Colorectal Adenocarcinoma-Derived Peritoneal Carcinomatosis
Lechanteur, Chantal ULg; Princen, Frédéric; Lo Bue, S. et al

in Gene Therapy (1997), 4(11), 1189-94

Peritoneal carcinomatosis is a common clinical situation which, in most cases, cannot be eradicated by surgery or chemotherapy. The feasibility of an HSV-TK-based suicide gene therapy for peritoneal ... [more ▼]

Peritoneal carcinomatosis is a common clinical situation which, in most cases, cannot be eradicated by surgery or chemotherapy. The feasibility of an HSV-TK-based suicide gene therapy for peritoneal carcinomatosis induced by DHD/K12 colon carcinoma cells was investigated. DHD/K12 cells stably expressing the tk gene were killed in vitro in the presence of low concentrations of ganciclovir, they exhibited a 'bystander effect' when mixed with TK-negative cells. BD-IX rats injected intraperitoneally, either directly or after surgical peritoneal irritations, with DHD/K12 cells developed peritoneal carcinomatosis within 2 weeks. Ganciclovir treatment of animals injected with DHD/K12-TK cells allowed a significant reduction of the tumor volume as well as a prolonged survival. Of these animals 35-40% showed a long-term disease-free survival after ganciclovir therapy. Residual or relapsing tumors could be explained by a low expression of the transgene as demonstrated by RT-PCR. [less ▲]

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See detailPredegenerated Nerve Allografts Versus Fresh Nerve Allografts in Nerve Repair
Dubuisson, A. S.; Foidart-Dessalle, Marguerite ULg; Reznik, Michel ULg et al

in Experimental Neurology (1997), 148(1), 378-87

This study reevaluated the possibility of using predegenerated nerves as donor nerve allografts for nerve repair and compared the results of functional recovery to those obtained after standard, fresh ... [more ▼]

This study reevaluated the possibility of using predegenerated nerves as donor nerve allografts for nerve repair and compared the results of functional recovery to those obtained after standard, fresh nerve allograft repair. Twenty donor rats underwent a ligature/ section of the left sciatic nerve 4 weeks before nerve graft harvesting. Forty recipient rats underwent severing of the left sciatic nerve leaving a 15-mm gap between the nerve stumps. Graft repair was undertaken using either the predegenerated left sciatic nerve of the 20 donor rats (predegenerated group, 20 recipient rats) or the normal right sciatic nerve of the 20 donor rats (fresh group, 20 recipient rats). Recovery of function was assessed by gait analysis, electrophysiologic testing and histologic studies. Walking tracks measurements at 2 and 3 months, electromyography parameters at 2 and 3 months, peroperative nerve conduction velocity and nerve action potential amplitude measurements at 3 months, as well as assessments of myelinated nerve fiber density and surface of myelination showed that fresh and predegenerated nerve grafts induced a comparable return of function although there was some trend in higher electrophysiologic values in the predegenerated group. The only slight but significant difference was a larger mean nerve fiber diameter in the nerve segment distal to a predegenerated nerve graft compared to a fresh nerve graft. Although our study does not show a dramatic long-term advantage for predegenerated nerve grafts compared to fresh nerve grafts, their use as prosthetic material is encouraging. [less ▲]

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See detailSciatic Nerve Regeneration through Venous or Nervous Grafts in the Rat
Foidart-Dessalle, Marguerite ULg; Dubuisson, Annie ULg; Lejeune, André ULg et al

in Experimental Neurology (1997), 148(1), 236-46

This study analyses the interest of isologous venous grafts filled with saline or with Schwann cells versus nerve grafts as guides for regeneration of the sciatic nerve in 35 Wistar rats ... [more ▼]

This study analyses the interest of isologous venous grafts filled with saline or with Schwann cells versus nerve grafts as guides for regeneration of the sciatic nerve in 35 Wistar rats. Electrophysiological parameters (conduction velocities and distal latencies of motor responses) and the functional index of De Medinacelli were measured several times from 1 month to 1 year after surgery. An histological analysis was performed on 2 control rats and on 3 rats killed 6 or 12 months after surgery: the total number of fibers was counted on a montage photoprint of the whole nerve, and the diameters of axons and the thickness of the myelin sheath were measured on digitized images. With a portion of nerve as guide, the regeneration is faster than with a vein. However, regeneration after 6 months is at least as good with a venous graft filled with Schwann cells, as assessed by electrophysiological, functional, and histological analysis. The addition of Schwann cells in grafted veins allows the nerve to regenerate through longer gaps than previously described (25 vs 15 mm). In order to assess the quality of nerve regeneration, functional, electrophysiological, and histological analysis are complementary. [less ▲]

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See detailL'aorte thoracique, source sous-estimée d'accidents ischémiques cérébraux
Hoffer, E.; Appeltants, H.; Pierard, Luc ULg

in Revue Médicale de Liège (1997), 52(11), 736-7