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See detailMachine monstrueuse. Retour sur l'excès, l'exhibition et le gros plan
Jousten, Lison ULg

Conference (2016, October 14)

La communication propose de revenir sur certains aspects monstrueux du cinématographe. À la fois vectrice et créatrice d’un imaginaire intimement associé à la machine, il s’agit principalement d’envisager ... [more ▼]

La communication propose de revenir sur certains aspects monstrueux du cinématographe. À la fois vectrice et créatrice d’un imaginaire intimement associé à la machine, il s’agit principalement d’envisager comment cette « machine à voir » (Viva Paci, 2012) est aussi étroitement liée à la question de la monstruosité. [less ▲]

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See detailLa machine pénale à travers l’œuvre de José Giovanni
Quintart, Aurélie ULg

Master's dissertation (2015)

Nous avons participé au séminaire Droit et Culture, sous l’égide de M. Nicolas Thirion. Dans ce cadre, nous avons remis un mémoire écrit, mais également présenté celui-ci lors d’un colloque organisé à ... [more ▼]

Nous avons participé au séminaire Droit et Culture, sous l’égide de M. Nicolas Thirion. Dans ce cadre, nous avons remis un mémoire écrit, mais également présenté celui-ci lors d’un colloque organisé à l’ULg le 7 mai 2015. Notre thème était le suivant : La machine pénale à travers l’oeuvre de Jose Giovanni. Notre mémoire était consacré à l’œuvre du réalisateur et écrivain Giovanni, un ancien détenu qui a beaucoup questionné par son œuvre le milieu judiciaire, pénal et carcéral. Nous avons utilisé cette œuvre pour revisiter et expliciter les théories de Lucien François, telles qu’exposées dans « Le Cap des tempêtes ». Notre travail a donc porté sur la philosophie du droit et a permis une réflexion sur l’essence de ce dernier. Nous avons également cherché à mettre en lumière le parallèle, déjà pressenti par M. François, entre criminels et policiers. En effet, notre mémoire visait aussi à démontrer qu’hommes de lois et truands utilisent des techniques de pression et tentent d’influencer l’attitude d’autrui de manière fort similaire. À ce titre, ces différents protagonistes gravitent dans des mondes semblables, caractérisés par la présence d’importants mécanismes et jeux de pouvoir. [less ▲]

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See detailMachine perfusion in clinical trials : "machine vs. solution effects"
Treckmann, Jürgen; Moers, Cyril; Smits, Jacqueline M et al

in Transplant International (2012), 25

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See detailMachine Perfusion or cold storage in deceased-donor kidney transplantation
Moers, C.; Smits, J.; Maathuis, M. H. et al

in New England Journal of Medicine [=NEJM] (2009), 360

BACKGROUND Static cold storage is generally used to preserve kidney allografts from deceased donors. Hypothermic machine perfusion may improve outcomes after transplantation, but few sufficiently powered ... [more ▼]

BACKGROUND Static cold storage is generally used to preserve kidney allografts from deceased donors. Hypothermic machine perfusion may improve outcomes after transplantation, but few sufficiently powered prospective studies have addressed this possibility. METHODS In this international randomized, controlled trial, we randomly assigned one kidney from 336 consecutive deceased donors to machine perfusion and the other to cold storage. All 672 recipients were followed for 1 year. The primary end point was delayed graft function (requiring dialysis in the first week after transplantation). Secondary end points were the duration of delayed graft function, delayed graft function defined by the rate of the decrease in the serum creatinine level, primary nonfunction, the serum creatinine level and clearance, acute rejection, toxicity of the calcineurin inhibitor, the length of hospital stay, and allograft and patient survival. RESULTS Machine perfusion significantly reduced the risk of delayed graft function. Delayed graft function developed in 70 patients in the machine-perfusion group versus 89 in the cold-storage group (adjusted odds ratio, 0.57; P = 0.01). Machine perfusion also significantly improved the rate of the decrease in the serum creatinine level and reduced the duration of delayed graft function. Machine perfusion was associated with lower serum creatinine levels during the first 2 weeks after transplantation and a reduced risk of graft failure (hazard ratio, 0.52; P = 0.03). One-year allograft survival was superior in the machine-perfusion group (94% vs. 90%, P = 0.04). No significant differences were observed for the other secondary end points. No serious adverse events were directly attributable to machine perfusion. CONCLUSIONS Hypothermic machine perfusion was associated with a reduced risk of delayed graft function and improved graft survival in the first year after transplantation. (Current Controlled Trials number, ISRCTN83876362.) [less ▲]

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See detailMachine perfusion versus cold storage for preservation of kidneys from expanded criteria donors after brain death
Treckmann, Jürgen; Moers, Cyril; Smits, Jacqueline M et al

in Transplant International (2011), 24

The purpose of this study was to analyze the possible effects of machine perfusion (MP) versus cold storage (CS) on delayed graft function (DGF) and early graft survival in expanded criteria donor kidneys ... [more ▼]

The purpose of this study was to analyze the possible effects of machine perfusion (MP) versus cold storage (CS) on delayed graft function (DGF) and early graft survival in expanded criteria donor kidneys (ECD). As part of the previously reported international randomized controlled trial 91 consecutive heartbeating deceased ECDs – defined according to the United Network of Organ Sharing definition – were included in the study. From each donor one kidney was randomized to MP and the contralateral kidney to CS. All recipients were followed for 1 year. The primary endpoint was DGF. Secondary endpoints included primary nonfunction and graft survival. DGF occurred in 27 patients in the CS group (29.7%) and in 20 patients in the MP group (22%). Using the logistic regression model MP significantly reduced the risk of DGF compared with CS (OR 0.460, P = 0.047). The incidence of nonfunction in the CS group (12%) was four times higher than in the MP group (3%) (P = 0.04). One-year graft survival was significantly higher in machine perfused kidneys compared with cold stored kidneys (92.3% vs. 80.2%, P = 0.02). In the present study, MP preservation clearly reduced the risk of DGF and improved 1-year graft survival and function in ECD kidneys. [less ▲]

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See detailMachine perfusion versus cold storage for the preservation of kidneys from donors ≥ years allocated in the Eurotransplant Senior Programme
GALLINAT, Anja; MOERS, Cyril; TRECKMANN, Jürgen et al

in Nephrology Dialysis Transplantation (2012), 27

Background. In the Eurotransplant Senior Programme (ESP), kidneys from donors aged ≥65 years are preferentially allocated locally and transplanted into patients aged ≥65 years on dialysis. The purpose of ... [more ▼]

Background. In the Eurotransplant Senior Programme (ESP), kidneys from donors aged ≥65 years are preferentially allocated locally and transplanted into patients aged ≥65 years on dialysis. The purpose of this study was to analyse whether the results of transplantation in the ESP can be improved by preservation of organs by hypothermic machine perfusion (MP) compared with simple cold storage (CS). Methods. Overall, 85 deceased heart-beating donors ≥65 years of age were included in this analysis with follow-up until 1 year post-transplant. For each donor, one kidney was randomly assigned to preservation by CS and the contralateral kidney to MP from organ procurement until transplantation. Delayed graft function (DGF), primary non-function (PNF) and 1-year patient and graft survival rates were evaluated as primary and secondary endpoints. Results. The median recipient age was 66 years in both groups and the median cold ischaemia time was 11 h for MP and 10.5 h for CS (P = 0.69). The DGF rate was 29.4% for MP and 34.1% for CS (P = 0.58). Only extended duration of cold ischaemia time was an independent risk factor for the development of DGF (odds ratio 1.2, P < 0.0001). PNF was significantly reduced (3.5% MP versus 12.9% CS, P = 0.02). The 1-year patient and graft survival rates were similar for MP and CS (94% versus 95% and 89 versus 81%, P > 0.05). The 1-year graft survival rate was significantly improved after MP in recipients who developed DGF (84% MP versus 48% CS, P = 0.01). Conclusions. Continuous pulsatile hypothermic MP for kidneys from donors aged ≥65 years can reduce the rate of never-functioning kidneys and improve the 1-year graft survival rate of kidneys with DGF. In this small cohort, the known advantage of MP for the reduction of DGF could not be confirmed, possibly due to relatively short cold ischaemia times. [less ▲]

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See detailA Machine-Intelligent System for Automatic Target Recognition
Dudgeon, Dan E.; Verly, Jacques ULg; Delanoy, Richard L.

Conference (1990, November)

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See detailMachine-learning approaches to power-system security assessment
Wehenkel, Louis ULg

in IEEE Expert (1997), 12(5), 60-72

The paper discusses a framework that uses machine learning and other automatic-learning methods to assess power-system security. The framework exploits simulation models in parallel to screen diverse ... [more ▼]

The paper discusses a framework that uses machine learning and other automatic-learning methods to assess power-system security. The framework exploits simulation models in parallel to screen diverse simulation scenarios of a system, yielding a large database. Using data mining techniques, the framework extracts synthetic information about the simulated system's main features from this database [less ▲]

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See detailA MACHINE-LEARNING CLASSIFIER FOR EPISODIC MIGRAINE BASED ON VISUAL EVOKED GAMMA BAND ACTIVITY
D'Ostilio, Kevin ULg; Lisicki Martinez, Marco ULg; SCHOENEN, Jean ULg et al

in Cephalalgia : An International Journal of Headache (2016), 36(1S), 56

Introduction: Objective and reliable biomarkers of migraine may be of interest for diagnosis and research purposes. Neuroimaging-based machine-learning classifiers are promising but hampered by ... [more ▼]

Introduction: Objective and reliable biomarkers of migraine may be of interest for diagnosis and research purposes. Neuroimaging-based machine-learning classifiers are promising but hampered by availability and cost issues. Conversely, evoked potential are of easy access and affordable. They have provided increasing evidence that sensory information processing is impaired in migraine. We have used gamma band oscillations (GBOs) of visual evoked potentials (VEPs) to compute a machine-learning neural network classifier in episodic migraine. Materials and methods: We analyzed GBOs from VEPs (6x100 responses). Recordings were performed in two matched samples: a training sample composed of 43 migraine patients (EM) and 20 healthy volunteers (HV) and a validating sample of 18 EM and 10 HV. A logistic regression model of the training sample was performed to evaluate the relevance of the predictor variables. Ten neural networks were automatically generated based on late component frequency, n3-p4 and p4-n4 slopes, 1st block n1-p2 amplitude and age. Results: The logistic regression model of the training sample reached a significant classification rate of 79% (EM: 88%; HV: 60%, p¼0.002). The best neural network was able to classify the groups with an accuracy of 73% in the training phase and 89% in the subsequent validation (success rate HV: 90%; EM: 88%). The mean global accuracy within the training and validating samples were 69% (63–78%) and 84% (82–89%). Conclusions: This machine-learning neural network classifier based on visual GBOs provides an accurate and costefficient tool for objective migraine diagnosis. Further training and validation studies with new cohorts are warranted [less ▲]

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See detailMachine-learnt versus analytical models of TCP throughput
El Khayat, Ibtissam; Geurts, Pierre ULg; Leduc, Guy ULg

in Computer Networks (2007), 51(10), 2631-2644

We first study the accuracy of two well-known analytical models of the average throughput of long-term TCP flows, namely the so-called SQRT and PFTK models, and show that these models are far from being ... [more ▼]

We first study the accuracy of two well-known analytical models of the average throughput of long-term TCP flows, namely the so-called SQRT and PFTK models, and show that these models are far from being accurate in general. Our simulations, based on a large set of long-term TCP sessions, show that 70% of their predictions exceed the boundaries of TCP-Friendliness, thus questioning their use in the design of new TCP-Friendly transport protocols. We then investigate the reasons of this inaccuracy, and show that it is largely due to the lack of discrimination between the two packet loss detection methods used by TCP, namely by triple duplicate acknowledgements or by timeout: expirations. We then apply various machine learning techniques to infer new models of the average TCP throughput. We show that they are more accurate than the SQRT and PFTK models, even without the above discrimination, and are further improved when we allow the machine-learnt models to distinguish the two loss detection techniques. Although our models are not analytical formulas, they can be plugged in transport protocols to make them TCP-Friendly. Our results also suggest that analytical models of the TCP throughput should certainly benefit from the incorporation of the timeout loss rate. (C) 2006 Elsevier B.V. All rights reserved. [less ▲]

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See detailMachines à concepts
Durand, Pascal ULg

Article for general public (1996)

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See detailMachines et Systèmes Thermiques
Lebrun, Jean ULg; Lemort, Vincent ULg

Learning material (2007)

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See detailLes machines rotatives : cours de construction des machines
Hanocq, Charles ULg

Book published by Ch. Béranger - 2e édition (1935)

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See detailLes machinimas : entre jeux et vidéos. Vers une poétique du détournement vidéoludique
Barnabé, Fanny ULg

in Culture Numérique (2015, October 10)

Cet article a pour objectif d’ébaucher la construction d’une théorie du détournement de jeux vidéo par les joueurs en passant, non pas par une perspective sociologique ou anthropologique, mais par ... [more ▼]

Cet article a pour objectif d’ébaucher la construction d’une théorie du détournement de jeux vidéo par les joueurs en passant, non pas par une perspective sociologique ou anthropologique, mais par l’analyse formelle des œuvres dérivées. Pour ce faire, le présent travail prend pour objet une pratique spécifique de détournement, la réalisation de machinimas, et l’aborde à travers un corpus illustratif de vidéos ayant pour point commun d’être issues des jeux Halo. L’analyse détaillée de quatre exemples prototypiques permettra de démontrer, d’une part, l’intime continuité qui existe entre la production de détournements et la pratique même du jeu (continuité qui rend donc artificielle toute tentative de démarcation stricte) et, d’autre part, la nature duelle du détournement de jeux vidéo (due à l’existence de deux aspects à détourner : le game et le play). La mise en parallèle de ces réflexions aboutira, enfin, dans la formalisation d’un modèle cartographiant les multiples formes de détournements. [less ▲]

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See detailMachining process simulation using Samcef superelement
Masset, Luc ULg; Debongnie, Jean-François ULg; Marty, Audrey

Conference (2005, February)

In this paper, we present a new simulation tool for process engineers. During process design phases, several aspects of machining have to be taken into account. Classical CAD/CAM suites still lack some ... [more ▼]

In this paper, we present a new simulation tool for process engineers. During process design phases, several aspects of machining have to be taken into account. Classical CAD/CAM suites still lack some crucial issues. The goal of the developed tool is to predict the geometric errors of machined surfaces. For classical applications of the automotive domain, form errors are mainly due to the machined part and clamping system flexibility. They are modeled thanks to the FE method. The major peculiarity of the adopted model is to apply numerous load cases. To achieve a low computational coast, we have combined the SAMCEF superelement feature and a specific code to solve the reduced system. This original scheme allows solving efficiently large industrial applications. [less ▲]

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See detailMachining processes simulation : specific finite element aspects
Masset, Luc ULg; Debongnie, Jean-François ULg

in Journal of Computational & Applied Mathematics (2004, July 01), 168(1-2), 309-320

The paper presents a simulation tool designed to predict form errors of part surfaces obtained by face milling and turning processes. For these operations, the form error is often due to the flexibility ... [more ▼]

The paper presents a simulation tool designed to predict form errors of part surfaces obtained by face milling and turning processes. For these operations, the form error is often due to the flexibility of the workpiece and its supports. The finite element method is adopted to model the part geometry and to compute its deformations. Numerous load cases are required to obtain the form error so that classical resolution methods prove to be inefficient (CPU time, memory and disk space). The paper mainly focuses on the special computation scheme adopted in order to improve the resolution of such an atypical problem. [less ▲]

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See detailMachteloos tegen de kamikazeregering 2 JAAR LINKSE OPPOSITIE
Verjans, Pierre ULg

Article for general public (2016)

Balans van 2 jaar linkse oppositie in Franstalig België. De politieke puzzel is er een stuk complexer dan in Vlaanderen, met cdH en PS regionaal aan de macht, wat op haar beurt de linkse oppositie tegen ... [more ▼]

Balans van 2 jaar linkse oppositie in Franstalig België. De politieke puzzel is er een stuk complexer dan in Vlaanderen, met cdH en PS regionaal aan de macht, wat op haar beurt de linkse oppositie tegen de regering-Michel bemoeilijkt. Die oppositie voelt zich, bijna halfweg de legislatuur, erg machteloos tegen de zogenaamde kamikazeregering gedomineerd door drie Vlaamse partijen. [less ▲]

Detailed reference viewed: 19 (2 ULg)