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See detailHydrogen atom loss from the benzene cation. Why is the kinetic energy release so large?
Gridelet, E.; Lorquet, Andrée ULg; Locht, Robert ULg et al

in Journal of Physical Chemistry A (2006), 110(27), 8519-8527

The kinetic energy release distributions (KERDs) associated with the hydrogen loss from the benzene cation and the deuterium loss from the perdeuteriobenzene cation have been remeasured on the metastable ... [more ▼]

The kinetic energy release distributions (KERDs) associated with the hydrogen loss from the benzene cation and the deuterium loss from the perdeuteriobenzene cation have been remeasured on the metastable time scale and analyzed by the maximum entropy method. The experimental kinetic energy releases are larger than expected statistically, in contradistinction to what has been observed for the C-X fragmentations of the halogenobenzene cations. H(D) loss from C6H6+ (C6D6+) occurs via a conical intersection connecting the (2)A(2) and (2)A(1) electronic states. Two models are proposed to account for the experimental data: (i) a modified orbiting transition state theory (OTST) approach incorporating electronic nonadiabaticity; (ii) an electronically nonadiabatic version of the statistical adiabatic channel model ( SACM) of Quack and Troe. The latter approach is found to be preferable. It leads to the conclusion that the larger the energy stored in the transitional modes, which partly convert to the relative interfragment motion, the shorter the value of the reaction coordinate at which the adiabatic channels cross, and the larger the probability of undergoing the (2)A(2) -> (2)A(1) transition required for hydrogen loss. [less ▲]

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See detailEfficacy and tolerability of olmesartan medoxomil in patients with mild to moderate essential hypertension - The OLMEBEST study
Barrios, V.; Boccanelli, A.; Ewald, S. et al

in Current Medical Research & Opinion (2006), 22(7), 1375-1380

Background and objective: Achieving target BP is important to control the increased cardiovascular risk associated with uncontrolled hypertension. However, failure to respond to therapy is common with all ... [more ▼]

Background and objective: Achieving target BP is important to control the increased cardiovascular risk associated with uncontrolled hypertension. However, failure to respond to therapy is common with all classes of antihypertensive agents. Angiotensin H type I receptor antagonists (angiotensin receptor blockers [ARBs]) possess many of the positive features of angiotensin-converting enzyme inhibitors, with fewer adverse effects. However, many patients fail to respond adequately to low-dose monotherapy. This study examined whether olmesartan medoxomil dose titration and olmesartan medoxomil/hydrochlorothiazide combination therapy were therapeutically equivalent in patients with mild to moderate essential hypertension who had shown an inadequate response to low-dose olmesartan medoxomil monotherapy. Methods: This was a prospective, parallel group, partially randomised, double-blind study set in 463 centres in nine European countries. 2306 male and female adult patients aged 18-75 years with mild to moderate essential hypertension (sitting diastolic BP [DBP] >= 90mm Hg and < 110mm Hg) were enrolled. All enrolled patients received open-label olmesartan medoxomil 20mg once daily for 8 weeks. At the end of this period, patients whose BP had not normalised (sitting DBP >= 90mm Hg) were randomised to receive olmesartan medoxomil monotherapy (40mg once daily, n = 302) or olmesartan medoxomil (20mg once daily)/ hydrochlorothiazide (12.5mg once daily) combination therapy (n = 325) for 4 weeks. The main outcome measure was change in mean sitting DBP during randomised treatment. Results: After 8 weeks of open-label treatment with olmesartan medoxomil 20 mg/day, 76% of patients showed a DBP response (sitting DBP < 90mm Hg or reduction of >= 10mm Hg). During the randomised phase of the study, both treatments were associated with further improvements in sitting SBP/DBP: a reduction of 5.3/5. 1 mm Hg with olmesartan medoxomil 40 mg/day, and a reduction of 10.8/7.9mm Hg with olmesartan medoxomil/thydrochlorothiazide combination therapy. Final mean BPs of 145.3/90.9mm Hg (olmesartan medoxomil 40 mg/day) and 140.7/88.7mm Hg (olmesartan medoxomil 20mg + hydrochlorothiazide) were achieved, compared with a mean BP of 160.8/ 100.5mm Hg at baseline. The two treatments were not therapeutically equivalent. Sitting DBP showed a response and was normalised (< 90mm Hg) in 62% and 47% of olmesartan medoxomil monotherapy patients, respectively. In the combination therapy group, these endpoints were achieved by 71 % (response) and 59% (normalisation) of patients. Treatment with olmesartan medoxomil 40 mg/day was associated with a lower frequency of adverse events than olmesartan medoxomil/hydrochlorothiazide combination therapy (21.5% vs 28.3%, respectively). Conclusion: For patients who did not achieve adequate BP control after initial treatment with olmesartan medoxomil 20 mg/day, olmesartan medoxomil dose titration (to 40 mg/day) or addition of hydrochlorothiazide (12.5 mg/day) elicited a sitting DBP response in the majority of patients who had failed to respond to low-dose monotherapy, and normalisation of sitting DBP in approximately 50% of patients. Both these strategies represent effective and well tolerated treatment options in patients who show an inadequate response to low-dose monotherapy with olmesartan medoxomil. [less ▲]

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See detailLa muséologie : Histoire, développements, enjeux actuels
Gob, André ULg; Drouguet, Noémie ULg

Book published by Armand Colin - 2e édition revue et corrigée (2006)

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See detailDeveloping tools for managing hydrogeological data in a semi-arid region: the case study of Oulmès (Morocco)
Ruthy, Ingrid ULg; Orban, Philippe ULg; Elbatloussi, D. et al

in GIRE3D: International Congress on Integrated Water Resources management and Challenges of the Sustainable Development (2006)

Data and information required by hydrogeological studies are various and complex such as geology, topography, climate, hydrological and hydrogeological raw or pre-processed data. All these data need to be ... [more ▼]

Data and information required by hydrogeological studies are various and complex such as geology, topography, climate, hydrological and hydrogeological raw or pre-processed data. All these data need to be managed, and this can be done in a structured database. A (GIS-managed) hydrogeological database has been developed previously by the Hydrogeology Group of the University of Liège (Gogu et al., 2001) in order to capture, store, edit, query, update and display geographically referenced hydrogeological data. The development of this geo-relational database was constrained by a maximum storage of data with a minimum data redundancy, reduction of storage memory capacity and optimum ‘retrievability’ of information for further analysis. In recent years, the use of Geographical Information System (GIS) has grown rapidly in groundwater management and research. GIS is now widely used to create digital geographic databases, to manipulate and prepare data as input for various model parameters, and to display model output. Coupling GIS with this hydrogeological database provides a powerful tool. This GIS-managed hydrogeological database has been also developed for vulnerability-assessment techniques and numerical modelling for groundwater flow and contaminant transport studies. As well as linking between database and GIS, the design of coupling database with process-based numerical models was also performed. This methodology has been applied, in a semi-arid region: the "Oulmès plateau" located in the Mid-Atlas (Morocco). This study has led to a detailed hydrogeological map at the scale of 1/25000. First, data were collected from existing databases, studies and maps as well as through new field measurements. These data came from numerous and various sources and in different formats (paper or digital diagrams, images, spreadsheets…). After validation, it has been encoded in the hydrogeological database. Because data are geo-referenced, it can be easily represented on the map within GIS-software. The hydrogeological map displays several layers of information as topography, hydrogeological units, hydrographic network, wells, piezometers, isoline of piezometric heads. [less ▲]

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See detailDéterminisme multifactoriel de l'héliodermie
QUATRESOOZ, Pascale ULg; uhoda, I.; PIERARD-FRANCHIMONT, Claudine ULg et al

in Actualités en Ingéniérie Cutanée (2006)

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See detailPaying Attention to Language, Replicas and the Role of the Artist in Janet Frame's Living in the Maniototo
Tunca, Daria ULg

in Journal of Postcolonial Writing (2006), 42(1), 32-43

Janet Frame's 1979 novel Living in the Maniototo features a ubiquitous narrator whose multiple personalities are linked by a common interest in creation. This choice of narrative perspective, coupled with ... [more ▼]

Janet Frame's 1979 novel Living in the Maniototo features a ubiquitous narrator whose multiple personalities are linked by a common interest in creation. This choice of narrative perspective, coupled with the characters and events depicted in the book, provides the basis for an exploration of the related concepts of art, language and replicas. By establishing connections between these elements, this article attempts to unveil the dynamics at work in the novel's multi-layered structure and thus shed light on the role of the artist in the narrative and, by extension, on the author's metafictional strategy. [less ▲]

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See detailCarcinoid tumor of the appendix: A consecutive series from 1237 appendectomies
Tchana-Sato, Vincent ULg; Detry, Olivier ULg; Polus, Marc ULg et al

in World Journal of Gastroenterology (2006), 12(41), 6699-6701

AIM: To report the experience of the CHU Sart Tilman, University of Liege, Belgium, in the management of appendiceal carinoid tumor. METHODS: A retrospective review of 1237 appendectomies performed in one ... [more ▼]

AIM: To report the experience of the CHU Sart Tilman, University of Liege, Belgium, in the management of appendiceal carinoid tumor. METHODS: A retrospective review of 1237 appendectomies performed in one single centre from January 2000 to May 2004, was undertaken. Analysis of demographic data, clinical presentation, histopathology, operative reports and outcome was presented. RESULTS: Among the 1237 appendectomies, 5 appendiceal carcinoid tumors were identified (0.4%) in 4 male and 1 female patients, with a mean age of 29.2 years (range: 6-82 years). Acute appendicitis was the clinical presentation for all patients. Four patients underwent open appendectomy and one a laparoscopic procedure. One patient was reoperated to complete the excision of mesoappendix. All tumors were located at the tip of the appendix with a mean diameter of 0.6 cm (range: 0.3-1.0 cm). No adjuvant therapy was performed. All patients were alive and disease-free during a mean follow-up of 33 mo. CONCLUSION: Appendiceal carcinoid tumor most often presents as appendicitis. In most cases, it is found incidentally during appendectomies and its diagnosis is rarely suspected before histological examination. Appendiceal carcinoid tumor can be managed by simple appendectomy and resection of the mesoappendix, if its size is <= 1 cm. (C) 2006 The WJG Press. All rights reserved. [less ▲]

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See detailSound production mechanism in Amphiprion clarkii (Teleostei: Pomacentridae)
Colleye, Orphal ULg; Herrel, Anthony; Vandewalle, Pierre ULg et al

Poster (2006)

In the family Pomacentridae, six genera were reported as sound producers: Amphiprion, Dascyllus, Stegastes, Chromis, Abudefduf and Plectroglyphidodon. The anemonefishes (Amphiprioninae) live in social ... [more ▼]

In the family Pomacentridae, six genera were reported as sound producers: Amphiprion, Dascyllus, Stegastes, Chromis, Abudefduf and Plectroglyphidodon. The anemonefishes (Amphiprioninae) live in social group in association with sea anemones, which protect them from predators. Their sound emissions seem involved in courtship and territorial defense, contributing to both survival and reproductive success. However, the mechanism of sound production is unresolved. It has been hypothesized that it involves swimbladder or the action of the pharyngeal jaws amplified by swimbladder. The aim of this study was to understand the sonic mechanism involved in the agonistic sounds in Amphiprion clarkii. The approach consists in high-speed cineradiography and functional morphology. During agonistic sounds (pops), fishes perform different movements such as skull elevation, pectoral girdle retraction, hyoid lowering and mouth closing. Pops are produced when the hyoid is completely lowered and the mouth closed. The simultaneous realization of these movements was never observed in teleost. In Amphiprion sp., it is possible due to an additional ligament inserted on the hyoid bar and on the inner lower jaw. The hyoid lowering combined to the closing (and thus the elevation) of the mandible could generate a tension of the ligament, provoking its vibration [less ▲]

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See detailThe use of various gas chromatography and mass spectrometry techniques for human biomonitoring studies
Patterson, Donald G.; Welch, S. M.; Focant, Jean-François ULg et al

in Organohalogen Compounds (2006), 68

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See detailGlissement progressif de l’analyse et de la gestion des risques des autorités publiques aux opérateurs industriels
Brunet, Sébastien ULg; Michel, Quentin ULg

in Revue de la Faculté de Droit de l'Université de Liège (2006), 2006/1-2

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See detailGeorges Kellens, de la tradition à l'innovation
Born, Michel ULg; Kefer, Fabienne ULg; Lemaître, André ULg

in Born, Michel; Kefer, Fabienne; Lemaître, André (Eds.) Une criminologie de la tradition à l'innovation, En hommage à Georges Kellens (2006)

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See detailLe processus électoral de 2006 en République démocratique du Congo
Kabamba, Bob ULg

Scientific conference (2006)

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See detailMichel Foucault et l'esthétique de l'existence
Delruelle, Edouard ULg

in Thiaw-Po-Une, Ludivine (Ed.) Questions d'éthique contemporaine (2006)

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See detailNew firm property and regional and local service development
Merenne-Schoumaker, Bernadette ULg

in GeolNova (2006), (12), 381-395

In less than ten years, a corporate property market has emerged in Wallonia. This market first covered offices and retail units and recently extended to semi-industrial establishments. Its development is ... [more ▼]

In less than ten years, a corporate property market has emerged in Wallonia. This market first covered offices and retail units and recently extended to semi-industrial establishments. Its development is largely related to the creation of a new type of demand resulting from the growth of new service activities and from new expectations regarding physical units, environment, accessibility and location choices – on both sub-regional and local scales. It has been favoured by the appearance of new property stakeholders, Belgians as well as foreigners (developers, investors and estate agents), but also by public authorities (the Walloon Region and economic development supra-communal agencies). This market’s emergence is related to the deepening of territorial contrasts as property development projects usually reinforce strong areas. [less ▲]

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See detailOrganiser la formation CAPAES : une expérience qui suscite quelques questions
Merenne-Schoumaker, Bernadette ULg

in Puzzle (2006), (20), 31-35

Bilan de l'expérience CAPAES à l'Université de Liège après quatre ans. Analyse au départ de cinq grandes questions

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See detailOptimization Of Issr Marker For African Edible-Seeded Cucurbitaceae Species' Genetic Diversity Analysis
Dje, Yao; Tahi, G. C.; Zoro Bi, Arsène I. et al

in African Journal of Biotechnology (2006), 5(2), 83-87

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See detailOn-line voltage security assessment
Vournas, Costas; Van Cutsem, Thierry ULg

in Savulescu, Savu (Ed.) Real-time stability in power systems: Techniques for the early detection of the risk of blackout (2006)

This chapter deals with voltage security assessment and its on-line application. Methods for contingency analysis are briefly reviewed. The associated con-cepts of transfer capability, loadability limit ... [more ▼]

This chapter deals with voltage security assessment and its on-line application. Methods for contingency analysis are briefly reviewed. The associated con-cepts of transfer capability, loadability limit, and secure operation margin are explored in some detail. Methods for preventive security control are outlined. An application of on-line VSA in the control center of a real system is then de-scribed and typical results available to operators are presented. [less ▲]

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See detailOccupational Activities and Cognitive Reserve: a Frontier Approach Applied to the Survey on Health, Ageing, and Retirement in Europe (SHARE)
Adam, Stéphane ULg; Bonsang, Eric; Germain, Sophie ULg et al

Report (2006)

The aim of this paper was to use a parametric stochastic frontier approach (coming from the economic literature) to explore the impact of the concept of activity (taken in a broad sense: i.e., including ... [more ▼]

The aim of this paper was to use a parametric stochastic frontier approach (coming from the economic literature) to explore the impact of the concept of activity (taken in a broad sense: i.e., including both professional and non-professional activities) on the constitution and the care of cognitive reserve among the European population aged 50 and up. For this purpose, we use individual data collected during the first wave of SHARE (Survey on Health, Ageing and Retirement in Europe) performed in 2004. The advantages of this survey were (1) it included a large population (n = 18,623) geographically distributed throughout Europe; and (2) it simultaneously analyzed several dimensions (physical and mental health, mobility, occupational activities, socioeconomic status, etc.). Our results confirm the positive impact of occupational activities on the cognitive functioning of elderly people. These results are discussed in terms of the prevention of cognitive aging and Alzheimer’s disease, and more particularly of retirement policy issues. [less ▲]

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