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See detailPerceptual and instrumental impacts of robotic laparoscopy on surgical performance
Blavier, Adelaïde ULg; Gaudissart, Quentin; Cadière, Guy-Bernard et al

in Surgical Endoscopy (2007), 21(10), 1875-1882

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See detailPerceptual and motor abilities in normal aging and Alzheimer’s disease: a preliminary study
Stawarczyk, David ULg; Grandjean, Julien ULg; Salmon, Eric ULg et al

in Archives of Gerontology & Geriatrics (2012), 54

Deficits in inhibitory abilities are frequently observed in normal aging and Alzheimer disease (AD). However, few studies have explored the generality of these deficits in a single group of participants ... [more ▼]

Deficits in inhibitory abilities are frequently observed in normal aging and Alzheimer disease (AD). However, few studies have explored the generality of these deficits in a single group of participants. A battery of tasks assessing perceptual and motor inhibitory functioning was administered to young and older healthy participants (Study 1), as well as to mild Alzheimer patients (Study 2). Results did not agree with a selective impairment of motor or perceptual inhibition in either AD or normal aging but rather suggest that a decrease in cognitive resources available in working memory could explain inhibitory performance both in normal aging and AD. [less ▲]

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See detailThe perceptual and verbal analogical reasoning in children with specific language impairment (SLI)
Leroy, Sandrine ULg; Guénébaud, Mélanie; Parisse, Christophe et al

Poster (2011, June)

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See detailPerceptual andMotor Inhibition in ADHD:Evidence for a specific impairment?
Catale, Corinne ULg; Geurten, Marie ULg; Lejeune et al

in Abstracts book (2013)

Objective: Inhibition, one of the core executive processes in executive functioning (Miyake et al., 2000) is generally not considered as an unitary construct (see for example, Friedman & Miyake, 2004 ... [more ▼]

Objective: Inhibition, one of the core executive processes in executive functioning (Miyake et al., 2000) is generally not considered as an unitary construct (see for example, Friedman & Miyake, 2004; Nassauer & Halperin, 2003). Following the perceptual versus motor dissociation proposed by Nassauer and Halperin (2003), we studied perceptual and motor inhibition in children with AttentionDeficit andHyperactivity Disorder (ADHD). Participants and Methods: Sixteen 7-12 years old children with ADHD and 30 matched control children were administered a version of the Conflict Resolution task (Nassauer & Halperin, 2003) adapted for children. In this task, the perceptual inhibition task required the children to respond to the direction of a dog (running towards the left or the right) while ignoring its location (left or right) on a computer screen. In the motor inhibition task, the children had to press a key corresponding to the opposite direction of a centrally running dog. Results: Comparisons analyses of inhibition performances between ADHD children and matched controlled subjects showed that ADHD children performed significantly less accurately for stimulus-stimulus characteristic conflicts (i.e., perceptual inhibition) than for stimulus- response conflicts (i.e., motor inhibition), which suggests a specific impairment in perceptual inhibition in our group of ADHD children. Conclusions: In conclusion, this study supports the presence of two forms of inhibition which can be differentiated and specifically impaired in 7- to 12-year-old ADHD children. [less ▲]

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See detailPerceptual memory for highly familiar people's body shape: Manipulation of images of the self and friend
Daury, Noémy ULg; Brooks, Kevin; Brédart, Serge ULg

in Perception (2009), 38(2), 261-270

Previous studies have shown that people's ability to detect, from memory, alterations in highly familiar faces is excellent. Indeed, just noticeable differences for the detection of small alterations in a ... [more ▼]

Previous studies have shown that people's ability to detect, from memory, alterations in highly familiar faces is excellent. Indeed, just noticeable differences for the detection of small alterations in a recognition-memory task were not significantly different from the corresponding measures in a perceptual-discrimination task (Brédart and Devue, 2006 Perception 35 101 - 106; Ge et al, 2003 Perception 32 601 - 614). The object of the present study was to evaluate whether people's perceptual memory for body shapes of very familiar persons reaches the high level of precision that was reported for face memory. For one group of participants, the task was to detect body shape alterations (an increase or a decrease of 2% to 10% of the waist-to-hip ratio) on photographs depicting either themselves or a friend. For another group of participants who did not know the target persons, the task was to discriminate whether two photographs presented side by side were the same or not. Results showed that the detection of alterations was significantly better in the perceptual-discrimination task than in the recognition-memory tasks (for the participant's own body as well as for the friend's body). In conclusion, the high fidelity of perceptual memory for very familiar faces does not extend to familiar body shapes. [less ▲]

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See detailPercevoir et objectiver la pollution de l’air. Une exploration historique et sociologique de ses « mesures » et de ses débordements
Melard, François ULg; Charvolin, Florian; Blavier, Géraldine et al

Report (2013)

Concertation is a recent addition to environmental issues, enabling the historical exploration of new avenues on compromise and incrementalism on the one hand and urban issues on the other. Tackling ... [more ▼]

Concertation is a recent addition to environmental issues, enabling the historical exploration of new avenues on compromise and incrementalism on the one hand and urban issues on the other. Tackling history with a close look at “concertation”, shades new light on urban metabolism in particular. It underlines connexions between metabolism and technical and organisational tools for its measure, its monitoring and its regulation. This is a good introductory focus on “administration”, proof administration as well as prevention and compensation in a spirit of general interest. Our hypothesis is that the issue of air quality is an epitome of the ambiguity by which “concertation” has been handled what concerns public policy conduct, in the way it relies upon “collegiality” of technical and associative actors. As a form of technical democracy, “collegiality” doesn’t pertain to a system officially involving citizen in decision making, although it assumes one figure or another of citizen to function. We will study this fictional citizen necessary to the accomplishment of “collegial” work in the air quality monitoring institutions, as evaluated against more spontaneous forms of “concertation” raised by local contests of industries, or garbage dump etc. After two years of archival and interviews’ work, we expect to produce a more articulated vision of “concertation” in technical environments, across different regions. We will study Rhone-Alps and Pas-de-Calais regions and we will pick examples in Belgium. An international conference, open to private sector will ensue in the third year along with academic publication. [less ▲]

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See detailPercevoir sous la contrainte des phénomènes sensibles
Dewalque, Arnaud ULg

Conference (2011, May 02)

J'examine ici la contribution de Stumpf à l'analyse de la perception sensible, en particulier les concepts de "contenu partiel" et de "perception concomitante".

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See detailPercezione del peso corporeo e strategie dietetiche negli adolescenti della provincia di Roma. Risultati preliminari di un’indagine campionaria
Piccinelli, R; Arcella, D; Polito, A et al

Poster (2001, February 14)

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See detailPerché studiare il diritto romano oggi?
Gerkens, Jean-François ULg

Scientific conference (2008, October 14)

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See detailPerching duration reveals pigeon's timing capacity
Richelle, Marc ULg; Lejeune, Helga ULg

in Bradshaw, C. M. (Ed.) Recent developments in the quantification of steady state operant behaviour (1981)

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See detailPercival Everett, Montée aux enfers
Dechêne, Antoine ULg

Article for general public (2013)

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See detailPercolation as a model for informetric distributions: fragment size distribution characterised by Bradford curves
Bogaert, Jan ULg; Rousseau, R; Van Hecke, P

in Scientometrics (2000), 47(2), 195-206

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See detailThe percolation theory : a powerful tool for a novel approach to the design of trickle-bed reactors and columns
Crine, Michel ULg; L'Homme, Guy ULg

in Chemical Engineering - Boston, ACS Symposium Series (1981)

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See detailPercutaneous administration of indomethacin in rheumatoid arthritis, evaluation of two topical preparations
Reginster, Jean-Yves ULg; Crommen, Jacques ULg; Renson, M et al

in Current Therapeutic Research (1990), 47(3), 548-553

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See detailPercutaneous Balloon Pericardiotomy: A Case Report and Analysis of Mechanism of Action
Bertrand, O.; Legrand, Victor ULg; Kulbertus, Henri ULg

in Catheterization and Cardiovascular Diagnosis (1996), 38(2), 180-2

A 33-year-old man with acquired immunodeficiency syndrome (AIDS) and cardiac tamponade underwent percutaneous balloon pericardiotomy. To elucidate the pathway of fluid elimination, at the end of the ... [more ▼]

A 33-year-old man with acquired immunodeficiency syndrome (AIDS) and cardiac tamponade underwent percutaneous balloon pericardiotomy. To elucidate the pathway of fluid elimination, at the end of the procedure, we injected methylene blue into the pericardial space. Contrary to previous belief, we found no blue discoloration of the pleural fluids, and thus we postulate that most of the fluid was eliminated by peritoneal resorption. [less ▲]

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See detailPercutaneous coronary intervention for bifurcation disease.A consensus view from the first meeting of the European Bifurcation Club.
Thomas, Martyn; Hildick-Smith, David; Louvard, Yves et al

in EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology (2006), 2(2), 149-53

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See detailPercutaneous coronary intervention in Europe 1992-2003
Cook, Stéphane; Togni, Mario; Walpoth, Nazan et al

in EuroIntervention : Journal of EuroPCR in Collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology (2006), 1

Aims: The purpose of this registry is to collect data on trends in interventional cardiology within Europe. Special interest focuses on relative increases and ratios in newer revascularization approaches ... [more ▼]

Aims: The purpose of this registry is to collect data on trends in interventional cardiology within Europe. Special interest focuses on relative increases and ratios in newer revascularization approaches and its distribution in different regions in Europe. We report the data of the year 2003 and give an overview of the development of coronary interventions since 1992, when the first data collection was performed. Methods and results: Questionnaires were distributed yearly to delegates of all national societies of cardiology represented in the European Society of Cardiology to collect the case numbers of all local institutions and operators. The overall numbers of coronary angiographies increased from 1992 to 2003 from 684,000 to 1,993,000 (from 1,250 to 3,500 per million inhabitants). The respective numbers for percutaneous coronary interventions (PCI-coronary angioplasty) and coronary stenting procedures increased from 184,000 to 733,000 (from 335 to 1,300) and from 3,000 to 610,000 (from 5 to 1,100), respectively. Germany has been the most active country for the past years with 653,000 angiographies (7,800), 222,000 angioplasties (2,500), and 180,000 stenting procedures (2,200) in 2003. The indication has shifted towards acute coronary syndromes, as demonstrated by raising rates of interventions for acute myocardial infarction over the last decade. The procedures are more readily performed and safer, as shown by increasing rate of “ad hoc” PCI and decreasing need for emergency coronary artery bypass surgery (CABG). In 2003, use of drug-eluting stents had further increased. However, an enormous variability is reported with the highest rate in Portugal (55%). Conclusion: Interventional cardiology in Europe is still expanding, mainly but not exclusively due to rapid growth in the eastern European countries. A number of new coronary revascularization procedures introduced over the years have all but disappeared. Only stenting has experienced an exponential growth. The same can be forecast for drug-eluting stenting. [less ▲]

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See detailPercutaneous coronary intervention of bifurcation lesions: state-of-the-art. Insights from the second meeting of the European Bifurcation Club.
Legrand, Victor ULg; Thomas, Martyn; Zelisko, M. et al

in EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology (2007), 3(1), 44-9

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See detailPercutaneous electrical stimulation of lumbosacral roots in man.
MAERTENS DE NOORDHOUT, Alain ULg; Rothwell, J. C.; Thompson, P. D. et al

in Journal of Neurology, Neurosurgery & Psychiatry (1988), 51(2), 174-81

High voltage percutaneous electrical stimulation over the lumbosacral spinal column was used to assess conduction in the cauda equina of 13 normal subjects. Electromyographic activity elicited by such ... [more ▼]

High voltage percutaneous electrical stimulation over the lumbosacral spinal column was used to assess conduction in the cauda equina of 13 normal subjects. Electromyographic activity elicited by such stimulation was recorded from various muscles of the lower limbs. The stimulating cathode was placed over the spinous process of each vertebral body and the anode kept on the iliac crest contralateral to the studied limb. Shifting the cathode in a rostro-caudal direction shortened the response latency in quadriceps, tibialis anterior and extensor digitorum brevis muscles. At moderate intensities (60% maximum), this occurred abruptly when the cathode was placed at levels corresponding to the exit sites from the spinal canal of the roots innervating these muscles. At these intensities, the size of the response in each muscle was largest when the cathode was placed over the conus medullaris or at or below the exit of the motor roots from the spine. Latencies were always equal to or shorter than those obtained with F-wave measurements, suggesting that peripheral motor axons, rather than intraspinal structures were activated by the stimulus. Collision experiments demonstrated that activation occurred at two sites: near the spinal cord and at the root exit site in the vertebral foramina. Recordings made from soleus indicated that larger diameter proprioceptive afferent fibres also could be activated. This technique might have useful clinical applications in the study of both proximal and distal lesions of the cauda equina and provide a non-invasive method of localising such lesions electrophysiologically. [less ▲]

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