References of "1998"
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See detailAnalyse du réseau RES/SALES, étape macro
Halleux, Jean-Marie ULg; Verdonckt, F.; Merenne-Schoumaker, Bernadette ULg

Report (1998)

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See detailLe genre Psilophyton dans le Dévonien inférieur de Belgique: P. cf. crenulatum Doran et P. forbesii Andrews, Kasper & Mencher.
Gerrienne, Philippe ULg

in Annales de la Société Géologique de Belgique (1998), 120

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See detailElectrophysiological monitoring in clinical trials
Bril, Valérie; Ellison, R.; Ngo, Marguerite et al

in Muscle & Nerve (1998)

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See detailLes chimioradiothérapies dans les cancers du col utérin
Maingon, P; COUCKE, Philippe ULg; Haie-Meder, C et al

in Cancer Radiotherapie (1998), 2

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See detailL'analyse en composantes principales : principes et applications
Palm, Rodolphe ULg

in Notes de Statistique et d'Informatique (1998), (2), 1-31

This note describes the principles of principal component analysis and gives two examples.

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See detailAltered apoptotic profiles in irradiated patients with increased toxicity
Ozsahin, Mahmut; Miralbell, Raymond; Emery, Gillian et al

in International Journal of Radiation, Oncology, Biology, Physics (1998), 42(Supplément), 135

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See detailImpaired LTP in the dentate gyrus of calretinin deficient mice
Schiffman, S. N.; Schurmans, Stéphane ULg; Gurden, H. et al

in Cell Biology International (1998), 22(5), 386-387

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See detailStomach uptake in FDG PET scans: is it related to blood glucose level ?
BHATNAGAR, A.; HUSTINX, Roland ULg; SHNIER, D. et al

in Journal of Nuclear Medicine (The) (1998), 39

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See detailBaudelaire, analyse textuelle : "Les Hiboux"
Tilkin, Françoise ULg; Mathonet, Anne

in Espace pour un humanisme européen (1998)

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See detailRadiotherapy of choroidal metastases.
Rosset, A; Zografos, L; COUCKE, Philippe ULg et al

in Radiotherapy & Oncology (1998), 46(3), 263-268

Abstract Purpose: This retrospective study was undertaken to clarify the role of high energy external beam radiation therapy (EBRT) and to determine its safety and efficacy on local control and visual ... [more ▼]

Abstract Purpose: This retrospective study was undertaken to clarify the role of high energy external beam radiation therapy (EBRT) and to determine its safety and efficacy on local control and visual acuity in patients suffering from choroidal metastases (CM). Materials and methods: The records of 58 consecutive patients treated with EBRT between 1970 and 1993 were analyzed. The female to male ratio was 2.9 and the median age was 59 years (range 40–81 years). Thirty-six patients (62%) had unilateral CM and 22 patients had bilateral CM. The mean number of lesions per eye was two. Retinal detachment was present in 65% of cases. The primary tumour (PT) was breast carcinoma for 38 patients (75%), lung carcinoma for 10 patients (17%) and gastrointestinal, genitourinary or unknown PT for the remaining 10 patients. The median interval of time between the PT and the CM was 55 months (range 0–228 months). All patients were treated with megavoltage irradiation. The median prescribed dose was 35.5 Gy (range 20–53 Gy) normalized at a 2 Gy per fraction schedule with an a/b value of 10 Gy. Various techniques were used and whenever possible the lens was spared. Ten patients with unilateral disease were treated in both eyes. Results: The tumour response was slow. When assessed after 3 months or more, the complete response rate was 53% with significantly better results for doses higher than 35.5 Gy (72 versus 33%; P = 0.009). Visual acuity was improved or stabilized in 62% of patients, with also significantly better results when doses higher than 35.5 Gy (P = 0.014) were administered. Amongst 26 patients with unilateral CM who had no elective contralateral irradiation, three developed metastasis in the opposite eye versus none of the 10 patients who had bilateral irradiation. Five complications occurred (three cataracts, one retinopathy and one glaucoma). Conclusion: Radiation therapy is an efficient and safe palliative treatment for choroidal metastases and it helps the preservation of vision. Thus, there is a major impact on the quality of life in a group of patients with an almost uniformly fatal prognosis. Both tumour response and visual acuity are significantly improved if doses higher than 35.5 Gy are administered. Whenever possible, a lens sparing technique should be used. Ó 1998 Elsevier Science Ireland Ltd. [less ▲]

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See detailPrimary non-Hodgkin's lymphoma of the nasal cavity: prognostic significance of paranasal extension and role of radiotherapy and chemotherapy
Li, Y-X; COUCKE, Philippe ULg; Li, J-Y et al

in International Journal of Gynecological Cancer : Official Journal of the International Gynecological Cancer Society (1998), 83(3), 449-456

BACKGROUND. This study was conducted to determine whether the paranasal extension of a primary non-Hodgkin’s lymphoma (NHL) of the nasal cavity has any deleterious effect on patient outcome. METHODS. One ... [more ▼]

BACKGROUND. This study was conducted to determine whether the paranasal extension of a primary non-Hodgkin’s lymphoma (NHL) of the nasal cavity has any deleterious effect on patient outcome. METHODS. One hundred and seventy-five patients with previously untreated nasal NHL were reviewed. There were 2 with low grade, 107 with intermediate grade, 17 with high grade, and 49 with unclassifiable lymphomas. In 48 cases the immunophenotype was available and 46 were T-cell lymphoma. According to the Ann Arbor system, there were 133 patients with Stage IE, 28 with Stage IIE, 4 with Stage IIIE, and 10 with Stage IVE lymphomas. Stage IE was subdivided into limited Stage IE (i.e., confined to the nasal cavity [67 patients]) or extensive Stage IE (i.e., presenting with extension beyond the nasal cavity [66 patients]). For patients with limited Stage IE disease the treatment of choice was radiotherapy with or without chemotherapy. In patients with extensive Stage IE disease, treatment was comprised of a combination of chemotherapy and radiotherapy or radiotherapy alone. For patients with a more advanced stage of disease (IIE–IVE), chemotherapy was an integral part of the treatment and was completed by irradiation, especially for patients with Stage IIE disease. RESULTS. The actuarial overall survival (OS) and disease free survival (DFS) rates at 5 years for the whole group were 65% and 57%, respectively. The 5-year OS and DFS rates were influenced by stage, with a gradual decrease from 75% and 68% for Stage IE disease to 35% and 28% for Stage IIE disease, and 31% and 19% for Stage IIIE/IVE disease. Patients with limited Stage IE disease survived significantly longer (90% 5-year OS) compared with those with extensive Stage IE disease (57% 5-year OS; P , 0.001). For 67 patients with limited Stage IE disease, the 5-year OS was 89% with radiotherapy alone and 92% with radiotherapy and chemotherapy, whereas for 66 patients with extensive Stage IE disease, the 5-year OS was 54% with radiotherapy and 58% with combined modality therapy or chemotherapy (P . 0.05). CONCLUSIONS. The prognosis of patients with primary NHL of the nasal cavity is stage dependent. In this large cohort of Stage IE patients, it was demonstrated that the paranasal local extension was a significant prognostic factor associated with poorer treatment outcome. The authors believe that Ann Arbor Stage IE should be subclassified further into limited and extensive Stage IE. The addition of chemotherapy did not appear to modify significantly the survival of patients with either limited or extensive Stage IE disease. The extranodal progression observed in patients with extensive Stage IE and Stage IIE-IVE disease clearly illustrates the need for improvement of systemic treatment. Cancer 1998;83:449–56. [less ▲]

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See detailAssessment of respiratory mechanics with impulse oscillometry in horses with upper and lower airway obstruction
Van Erck, Emmanuelle; Duvivier, D. H.; Art, Tatiana ULg et al

in Plügers Archives European Journal of Physiology (1998)

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See detailHeavy-flavour pentaquarks in a chiral constituent quark model
Genovese, M.; Richard, J. M.; Stancu, Floarea ULg et al

in Physics Letters B (1998), B425

Within the chiral constituent quark model of Glozman and Riska, we discuss the stability of heavy pentaquarks, i.e. hadrons containing four light quarks and a heavy antiquark. The spin-dependent part of ... [more ▼]

Within the chiral constituent quark model of Glozman and Riska, we discuss the stability of heavy pentaquarks, i.e. hadrons containing four light quarks and a heavy antiquark. The spin-dependent part of the Hamiltonian is dominated by the short-range part of the Goldstone-boson-exchange interaction. We find that these systems are not bound, having an energy above the lowest dissociation threshold into a baryon and a meson. [less ▲]

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See detailL'enseignement des sciences. UN défi pour notre système éducatif
Monseur, Christian ULg; Demeuse, Marc

in Athena (1998)

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See detailMammals from the Azores islands (Portugal): an updated overview
Mathias, Maria da Luz; Ramalhinho, Maria Graça; Santos-Reis, Margarida et al

in Mammalia (1998), 62(3), 397-407

Nine species of mammals are recorded for the Azores islands: one insectivore (Erinaceus europaeus), two bats (Myotis myotis, Nyctalus azoreum), one lagomorph (Oryctolagus cuniculus), three rodents (Rattus ... [more ▼]

Nine species of mammals are recorded for the Azores islands: one insectivore (Erinaceus europaeus), two bats (Myotis myotis, Nyctalus azoreum), one lagomorph (Oryctolagus cuniculus), three rodents (Rattus norvegicus, R. rattus, Mus musculus domesticus) and two carnivores (Mustela nivalis, M. furo). Here, notes on the origin and known distribution are given for each species, together with taxonomical and ecological cmments. Except for bats all the remaining species seem to have been introduced under the influence of the man's exploratory and commercial activities [less ▲]

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See detailFinancing sources for village agents of the rice channel in the Mekong Region
Dogot, Thomas ULg; Lebailly, Philippe ULg

in BADC; Vietnam Women's Union (Eds.) Proceedings of the Workshop "Projects with a credit component in South-East Asia" (1998)

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See detailHow the *H-particle* unravels the quark dynamics
Stancu, Floarea ULg; Pepin, S.; Glozman, L Ya

in Physical Review. D : Particles and Fields (1998), D57

It is shown that the short-range part of the Goldstone boson exchange interaction between the constituent quarks, which explains baryon spectroscopy and the short-range repulsion in the NN system, induces ... [more ▼]

It is shown that the short-range part of the Goldstone boson exchange interaction between the constituent quarks, which explains baryon spectroscopy and the short-range repulsion in the NN system, induces a strong short-range repulsion in the flavour-singlet state of the $S=-2$ system with $J^P=0^+$. This suggests that a deeply bound H-particle should not exist. We compare our approach with other models employing different hyperfine interactions between quarks in the nonperturbative regime of QCD. [less ▲]

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