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See detailOpinions, attitudes et comportements politiques. Notes de cours
Grandjean, Geoffrey ULg

Learning material (2015)

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See detailOpinions, attitudes et comportements politiques. Tome 1. Notes provisoires
Grandjean, Geoffrey ULg

Learning material (2014)

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See detailOpioid analgesia at peripheral sites: a target for opioids released during stress and inflammation?
Joris, Jean ULg; Dubner, R.; Hargreaves, K. M.

in Anesthesia and Analgesia (1987), 66(12), 1277-81

The peripheral analgesic effects of opiates were evaluated in a rat model of inflammation. The experimental design excluded a potential central nervous system site of action for the observed analgesia ... [more ▼]

The peripheral analgesic effects of opiates were evaluated in a rat model of inflammation. The experimental design excluded a potential central nervous system site of action for the observed analgesia. After the injection of carrageenan (CARRA) in the plantar surface of both hind paws, an opiate was injected into one paw and saline was injected into the other paw. The inflamed paws injected with the mu-agonist, fentanyl (0.3 micrograms) or the kappa-agonist, ethylketocyclazocine (10 micrograms) were significantly less hyperalgesic (P less than 0.001 and P less than 0.01, respectively) than were the contralateral inflamed paws injected with saline. At these doses, fentanyl and ethylketocyclazocine were devoid of systemic effects. Another mu-agonist, levorphanol (20, 40, 80, or 160 micrograms) and dextrorphan (160 micrograms), its dextrorotatory isomer, were used next to evaluate opioid specificity. Levorphanol produced a dose-related blockade of CARRA-induced hyperalgesia (P less than 0.005). In contrast, 160 micrograms of dextrorphan was inactive. These results demonstrate that local administration of opiates into an inflamed paw produces a dose-related, stereospecific analgesia restricted to the injected area. [less ▲]

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See detailOpioids in intensive care
Lamy, Maurice ULg; Joris, Jean ULg; Damas, Pierre ULg et al

in Lawin, P.; Von Loewenich, V.; Schuster, H.-P. (Eds.) et al Intensivmedizin notfallmedizin anästhesiologie (1995)

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See detailOpioids sparing effect of gabapentin in neurologic thoracic outlet syndrom surgery
ROUSSEAU, Anne-Françoise ULg; LECOQ, Jean-Pierre ULg; CARLIER, Alain ULg et al

in European Journal of Anaesthesiology. Supplement (2006), 23(suppl 37), 223

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See detailOppervlakte-biopsie
Nikkels, Arjen ULg; Pierard-Franchimont, Claudine ULg; Pierard, Gérald ULg

in Nederlands Tijdschrift voor Dermatologie en Venereologie (1993), 3

Superficial skin surface stripping (SSSS) enables the study of the outermost cell layers of the stratum corneum. In this article we review the diagnostic value and the research possibilities offered by ... [more ▼]

Superficial skin surface stripping (SSSS) enables the study of the outermost cell layers of the stratum corneum. In this article we review the diagnostic value and the research possibilities offered by SSSS. This technique is non invasive and provides information useful in the differential diagnosis of erythematosquamous and eczematous lesions and pigmented neoplasms. For research purposes SSSS can also be used as substratum for scanning electron microscopic assessments and biochemical analysis. [less ▲]

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See detailOpportunistic behaviour in animals and robots
Anselme, Patrick ULg

in Journal of Experimental & theoretical Artificial Intelligence (2006), 18(1), 1-15

An agent (animal or robot) is said to exhibit opportunistic behaviours, when it can identify favourable circumstances for its actions, even when the environment is non-optimal (i.e. when the stimuli ... [more ▼]

An agent (animal or robot) is said to exhibit opportunistic behaviours, when it can identify favourable circumstances for its actions, even when the environment is non-optimal (i.e. when the stimuli encountered are a priori weakly incentive). In animals, there is evidence that the stronger their motivation for a task, the more they tend to accept as relevant those stimuli to which they previously paid no attention. It is shown how motivations and their reactivity threshold bring about perceptual generalizations that might help animals to recognize more opportunities to act. This process is likely to be useful in uncertain environments, such as the real world. Designers interested in autonomous mobile robots construct machines with flexible goal achievements. In particular, these robots are provided with specific motivational states that determine when to carry out a given task. However, it is argued here that these motivational states do not allow robots to recognize opportunities to act because, contrary to the case with animals, artificial motivational systems are not designed to deal with non-optimality of the environment. [less ▲]

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See detailL'opportunité de recoupes strictement définies dans l'estimation du volume du bois d'oeuvre (Application au hêtre)
Rondeux, Jacques ULg

in Bulletin des Recherches Agronomiques de Gembloux (1976)

New tarif tables are constructed in order to give foresters the possibility of appraising merchantable volumes based upon varying limits of utilization. The method uses regression functions which take ... [more ▼]

New tarif tables are constructed in order to give foresters the possibility of appraising merchantable volumes based upon varying limits of utilization. The method uses regression functions which take into account specified top limits defined in girth and log length. This study is applied to the beech (Fagus sylvatica, L.). [less ▲]

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See detailOpportunité des séjours : l’outil AEP dans les hôpitaux belges
FONTAINE, Pierre; GILLAIN, Daniel ULg; THONON, Olivier ULg et al

in Gestions Hospitalieres (2012)

L'évolution des coûts de santé en général, et hospitaliers en particulier, a conduit les autorités belges à prendre des mesures pour limiter les durées de séjour. Les hôpitaux étant à présent financés en ... [more ▼]

L'évolution des coûts de santé en général, et hospitaliers en particulier, a conduit les autorités belges à prendre des mesures pour limiter les durées de séjour. Les hôpitaux étant à présent financés en fonction du nombre d'admissions et des pathologies correspondantes, l'usage d'un outil permettant d'estimer la proportion des admissions et des journées inappropriées, ainsi que leurs causes, est d'un intérêt majeur. Trois enquêtes transversales successives ont été menées de 2003 à 2005 dans 23 hôpitaux aigus en médecine interne, chirurgie et gériatrie. En tout, 12 000 séjours et 1 800 admissions ont ainsi été audités au moyen de l'Appropriateness Evaluation Protocol. [less ▲]

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See detailOpportunities and challenges to investigating plant diversification from the fossil record
Silvestro, Daniel; Cascales - Miñana, Borja ULg; Becon, Christine B, et al

Conference (2014, June)

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See detailOpportunities for fine gold recovery from a copper flotation circuit using Knelson concentrator
Patchejieff, B.; Gaydardzhiev, Stoyan ULg; Lazarov, D.

in Minerals Engineering (1994), 7(2/3), 405-408

Experiments aimed at determination of the character of the gold observed in a copper ore processed by flotation, and also to evaluate the possibilities of improvement of the total gold recovery have been ... [more ▼]

Experiments aimed at determination of the character of the gold observed in a copper ore processed by flotation, and also to evaluate the possibilities of improvement of the total gold recovery have been carried out. The gravity equipment used was a 7.5" Knelson screen hydrostatic concentrator, reported of being capable of treatment and upgrading of up to 1000 times raw material with about 30% hypothetical concentration of heavy flotation sized particles. The gold-to-sulfides ratio obtained during the various runs was chosen as a general criterion for the type of gold presented (free or locked) and for the gravity approach feasibility. [less ▲]

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See detailOpportunities for using two low-cost methods for treatment of metal bearing aqueous streams
Gaydardzhiev, Stoyan ULg; Hadjihristova, M.; Tichy, R.

in Minerals Engineering (1996), 9

The feasibility of two non-traditional approaches - reedbeds as a natural wetland and adsorption on lignite and its maceral fractions - for their application in metal bearing effluent treatment is ... [more ▼]

The feasibility of two non-traditional approaches - reedbeds as a natural wetland and adsorption on lignite and its maceral fractions - for their application in metal bearing effluent treatment is discussed. The main mechanisms of metals uptake are otulined. The preliminary results from a pilot scale wetland operation for metallurgical effluents purification are analysed. For the second approach - the different maceral fractions derived from coal refining have shown different metal uptake apptitude. Zeta potential studies and adsorption isotherms have explained these findings. [less ▲]

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See detailOpportunity and challenges of eHealth and mHealth for patients and caregivers
Slomian, Justine ULg; Reginster, Jean-Yves ULg; Ethgen, Olivier ULg et al

in Austin Journal of Public Health and Epidemiology (2014), 1(2), 3-5

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See detailOpposing Actions of Intact and N-Terminal Fragments of the Human Prolactin/Growth Hormone Family Members on Angiogenesis: An Efficient Mechanism for the Regulation of Angiogenesis
Struman, Ingrid ULg; Bentzien, F.; Lee, H. et al

in Proceedings of the National Academy of Sciences of the United States of America (1999), 96(4), 1246-51

Angiogenesis, the process of development of a new microvasculature, is regulated by a balance of positive and negative factors. We show both in vivo and in vitro that the members of the human prolactin ... [more ▼]

Angiogenesis, the process of development of a new microvasculature, is regulated by a balance of positive and negative factors. We show both in vivo and in vitro that the members of the human prolactin/growth hormone family, i.e., human prolactin, human growth hormone, human placental lactogen, and human growth hormone variant are angiogenic whereas their respective 16-kDa N-terminal fragments are antiangiogenic. The opposite actions are regulated in part via activation or inhibition of mitogen-activated protein kinase signaling pathway. In addition, the N-terminal fragments stimulate expression of type 1 plasminogen activator inhibitor whereas the intact molecules have no effect, an observation consistent with the fragments acting via separate receptors. The concept that a single molecule encodes both angiogenic and antiangiogenic peptides represents an efficient model for regulating the balance of positive and negative factors controlling angiogenesis. This hypothesis has potential physiological importance for the control of the vascular connection between the fetal and maternal circulations in the placenta, where human prolactin, human placental lactogen, and human growth hormone variant are expressed. [less ▲]

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