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See detailRiemannian Metric and Geometric Mean for Positive Semidefinite Matrices of Fixed Rank
Bonnabel, Silvère; Sepulchre, Rodolphe ULg

in SIAM Journal on Matrix Analysis & Applications (2009), 31(3), 1055--1070

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See detailAdaptive Regulation of Vector Controlled Induction Motors
Jadot, Fabrice; Malrait, Francois; Moreno, Javier et al

in IEEE Transactions on Control Systems Technology (2009), 17(3),

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See detailSynchronization in Networks of Identical Linear Systems
Scardovi, Luca; Sepulchre, Rodolphe ULg

in Automatica (2009), 45(11), 2557-2562

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See detailUltrasonic internal defect detection in cheese
Leemans, Vincent ULg; Destain, Marie-France ULg

in Journal of Food Engineering (2009), 90(3), 333-340

Different ultrasonic signals and detection techniques were used and compared to detect internal foreign bodies present in semi-soft cheeses. The signals were a pulse or a chirp and the detection was ... [more ▼]

Different ultrasonic signals and detection techniques were used and compared to detect internal foreign bodies present in semi-soft cheeses. The signals were a pulse or a chirp and the detection was carried out by using either correlation with a reference signal or a wavelet decomposition. The principle of the detection consisted in measuring the time of flight of the transmitted signals and of the echoes, the latter in the absence of foreign body should be the double of the former. The presence of a foreign object affected this pattern in several ways. In order to assess the method, a small plastic cylindrical object of 3 mm in diameter was introduced in one half of the cheese and was tested for detection, the second half being used as reference for the control cheese. The results showed that the two signals and the two detection methods were able to localise the transmitted signals and the echo from the opposite face of the cheese under all circumstances. For the foreign body detection, the correlation method gave superior results, in term of signal to noise ratio as well as in term of error rate, while the two signals gave similar results. The analysis of the mean and standard deviation of the signal to noise ratio of the object echo showed that some samples presented peak values close to those due to the noise. Nevertheless, the object was detected in 90% of the tests. There was no significant effect of temperature on the detection technique. (C) 2008 Elsevier Ltd. All rights reserved. [less ▲]

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See detailNotes on the lichen genus Erioderma in La Réunion
Jørgensen, Per Magnus; van den Boom, Pieter P. G.; Sérusiaux, Emmanuël ULg

in Cryptogamie. Mycologie (2009), 30

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See detailComparison of two immunoassays for oxidized LDL determination
Le Goff, Caroline ULg; Haleng, Jeanine ULg; Denooz, André ULg et al

in Annales de Biologie Clinique (2009), 67(1),

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See detailPredictors of short-term outcome in brain-injured patients with disorders of consciousness.
Whyte, J.; Gosseries, Olivia ULg; Chervoneva, I. et al

in Progress in Brain Research (2009), 177

OBJECTIVES: To investigate predictors of recovery from the vegetative state (VS) and minimally conscious state (MCS) after brain injury as measured by the widely used Disability Rating Scale (DRS) and to ... [more ▼]

OBJECTIVES: To investigate predictors of recovery from the vegetative state (VS) and minimally conscious state (MCS) after brain injury as measured by the widely used Disability Rating Scale (DRS) and to explore differences in rate of recovery and predictors of recovery during inpatient rehabilitation in patients with non-traumatic (NTBI) and traumatic brain injury (TBI). DESIGN: Longitudinal observational cohort design and retrospective comparison study, in which an initial DRS score was collected at the time of study enrollment. Weekly DRS scores were recorded until discharge from the rehabilitation center for both NTBI and TBI patients. SETTING: Seven acute inpatient rehabilitation facilities in the United States and Europe with specialized programs for VS and MCS patients (the Consciousness Consortium). PARTICIPANTS: One hundred sixty-nine patients with a non-traumatic (N=50) and a traumatic (N=119) brain injury who were in the VS or MCS states. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: DRS score at 13 weeks after injury; change in DRS score over 6 weeks post-admission; and time until commands were first followed (for patients who did not show command-following at or within 2 weeks of admission). RESULTS: Both time between injury and enrollment and DRS score at enrollment were significant predictors of DRS score at week 13 post-injury but the main effect of etiology only approached significance. Etiology was however a significant predictor of the amount of recovery observed over the 6 weeks following enrollment. Time between injury and enrollment was also a good predictor of this outcome, but not DRS score at enrollment. For the time until commands were first followed, patients with better DRS scores at enrollment, and those with faster early rates of change recovered command following sooner than those with worse DRS scores or slower initial rates of change. The etiology was not a significant predictor for this last outcome. None of these predictive models explained sufficient variance to allow their use in individual clinical decision making. CONCLUSIONS: Time post-injury and DRS score at enrollment are predictors of early recovery among patients with disorders of consciousness, depending on the outcome measure chosen. Etiology was also a significant predictor in some analyses, with traumatically injured patients recovering more than those with non-traumatic injuries. However, the hypothesized interaction between etiology and time post-injury did not reach significance in any of the analyses suggesting that, within the time frame studied, the decline in prognosis with the passage of time was similar in the two groups. [less ▲]

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See detailBehavioral Assessment in Patients with Disorders of Consciousness: Gold Standard or Fool’s Gold?
Schnakers, Caroline ULg; Giacino, Joseph; Rodriguez-Moreno et al

in Progress in Brain Research (2009), 177

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See detailDon Quichotte ou le triomphe de l’imperfection
Ceballos Viro, Alvaro ULg

Article for general public (2009)

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See detailThe role of the state in supporting pollination services providers` apiarian exploitations
Bodescu, Dan; Stefan, Gavril; Paveliuc Olariu, Codrin ULg

in Agronomy Series of Scientific Research = Lucrari Stiintifice Seria Agronomie (2009), 52(2), 179-182

The pollination of entomophilous plants is a well-know example of positive externality offered by the apiarian exploitations for the farms growing entomophilous plants and for the entomophilous ... [more ▼]

The pollination of entomophilous plants is a well-know example of positive externality offered by the apiarian exploitations for the farms growing entomophilous plants and for the entomophilous spontaneous flora. In this study, the authors aim to substantiate the legitimacy and the necessity of the support that must be given by the organisms of the State to the pollination services providers` apiarian exploitations. The research method utilized consists in determining the additional profit due to pollination by bees and the necessary of bees’ families for the pollination of the principal entomophilous cultures existent at national level. The obtained results indicated the necessity of the support from the State for the diversification of the outputs with pollination services at the level of the exploitations with low rentability and for establishing apiarian exploitations specialized on supplying pollination services. [less ▲]

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See detailThe comparative profitability of Romanian apiarian exploitations On Size Categories
Bodescu, Dan; Stefan, Gavril; Paveliuc Olariu, Codrin ULg

in Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Horticulture (2009), 66(2), 514

The aim of the work consists in determining the level of profitability in apiarian exploitations on the size categories: apiarian exploitations with a herd less than 50 bees families, apiarian ... [more ▼]

The aim of the work consists in determining the level of profitability in apiarian exploitations on the size categories: apiarian exploitations with a herd less than 50 bees families, apiarian exploitations with a herd of 50 to 100 bees families and apiarian exploitations with a herd larger than 100 bees families. The average size of the apiarian exploitation in the investigated sample was of 24,6 bees families per apiarian exploitation (NIS, 2008). The subjects category (the beekeepers in the apiarian exploitations) which hold the biggest share in the sample was the one with a herd smaller the 50 bees families with 81,0%. The field socio-economic research have been made as a part of the PN II 51-085/2007 Parteneriate research contract. The investigated sample has been comprised from the beekeepers in 6 apiarian exploitations from 21 counties. The analyzed period was 2006-2009. The apiarian exploitations with a size between 0-50 bees families have obtained in 2006 a honey production of 22,7 kg/family continuing in 2007 with a loss of 1,7 kg/family following in 2007 to obtain an increase of 4,9 kg/family from the previous year. In 2008, the honey production was of 24,9 kg/family in the case of apiarian exploitations with a size between 0-50 families, continuing with an increase of 5,2 kg/family in the case of exploitations with a size between 50 and 100 families and ending with an increase of 0,8 kg/family for the exploitations with over 100 bees families. The average expenditures value on the three types of apiarian exploitation was of 150,5 lei/family and the average of the gross profit was of 118,4 lei/bees family. The average of the gross profit on the three types of exploitation was of 8814,3 lei/exploitation and that of the profit rate was of 81,8%. [less ▲]

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See detailInterests and limitations of nanoindentation for bulk multiphase material identification: Application to the β phase of Ti-5553
Gerday, Anne-Françoise ULg; Ben Bettaieb, Mohamed ULg; Duchene, Laurent ULg et al

in Acta Materialia (2009), (57), 5186-5195

This paper focuses on the numerical modeling of nanoindentation tests. The first goal of this study is to collect essential material parameters and boundary conditions from the literature and to complete ... [more ▼]

This paper focuses on the numerical modeling of nanoindentation tests. The first goal of this study is to collect essential material parameters and boundary conditions from the literature and to complete the data required to accurately model nanoindentation tests. The second goal of this study consists in validating the material parameters identified from macroscopic tensile tests of the body-centered cubic b phase of Ti-5553, a new generation of titanium alloy. This validation is performed looking at experimental and numerical nanoindentation curves obtained for different grain orientations. [less ▲]

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See detailLa demeure de Min maître d’Imet. Un monument de Tell Farâoun réinterprété
Razanajao, Vincent ULg

in ENIM (2009), 2

The reconsideration of granite fragments unearthed by Petrie at Tell Farʿun / Nebesheh allows us to clarify the attribution of the small temple of the ancient town of Imet. Their identification to two ... [more ▼]

The reconsideration of granite fragments unearthed by Petrie at Tell Farʿun / Nebesheh allows us to clarify the attribution of the small temple of the ancient town of Imet. Their identification to two door-jambs confirms the first impression that could give the field, namely that the small temple is not the place of worship of Wadjet of Imet, the main deity, but the one of Min. The date of the construction of this temple, given by a foundation deposit of Amasis (26th dyn.), coincides with the date of the apparition of Min of Imet in the documentation. [less ▲]

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See detailLa guerre civile espagnole entre fiction et réalité
Curreri, Luciano ULg

in Interférences Littéraires = Literaire Interferenties (2009), 3

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See detailEvaluating a calibration method for the estimation of fragmented rocks 3D-size-distribution out of 2D images
Outal, Souhail; Schleifer, Jacques; Pirard, Eric ULg

in Sanchidrian, J. A. (Ed.) Fragblast 9 (2009)

Image analysis is a tool having great potential for the quantification of fragmented rocks size-distribution. This recent technique should be validated according to sieving measurements. Current acquisi ... [more ▼]

Image analysis is a tool having great potential for the quantification of fragmented rocks size-distribution. This recent technique should be validated according to sieving measurements. Current acquisi-tion allows the obtaining of only 2D information from images. In addition, the 3D passage is extremely prob-lematic. Firstly, the usual stereological methods do not work because the reasoning is carried out on non-random projections. Secondly, estimated sizes differ from those measured by sieving. Last, a quantity of mat-terial measured during sieving remains inaccessible by image analysis, due to masking and segregation. This paper evaluates a method directly connecting 2D raw data to 3D sieving measurements. The cited problems are reduced as much as possible thanks to the adoption of an isotropic 2D sorting criterion, and thanks to samples without masking and segregation. Important results have been obtained. Firstly, the characteristic size is correctly estimated in 2D, giving access to computing the uniformity index through known models. Secondly, the stereological approach, bringing into play proportions, is not sufficiently robust to reconstruct easily volume distributions. Limits of this kind of methods, which are, unfortunately, currently used in several granulometric applications, are analyzed. [less ▲]

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See detailRevue Internationale des Droits de l'Antiquité LVI (2009) (parue en septembre 2010)
Gerkens, Jean-François ULg

in Revue Internationale des Droits de l'Antiquité (2009), LVI

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See detailLes jeunes qui vont travailler dès la fin de l'enseignement secondaire : profil et motivations
Dupont, Virginie ULg; Lafontaine, Dominique ULg

in Scientia Paedagogica Experimentalis (2009), XLVI(1), 121-144

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See detailRe-membering the Clichés: Memory and Stereotypes in Baraka's The Slave, Fuller's A Soldier's Play and Hansberry's Les Blancs
Gabrielle, Cindy ULg

in English Text Construction (2009), 2(1), 146-156

These days authors who use stereotypical characters such as the African woman warrior or the old field slave smoking his pipe and humming blues songs, would probably be considered as intellectually biased ... [more ▼]

These days authors who use stereotypical characters such as the African woman warrior or the old field slave smoking his pipe and humming blues songs, would probably be considered as intellectually biased or mentally colonized. Yet, it is also the case that, for some African American writers like Amiri Baraka, Charles Fuller and Lorraine Hansberry, these characters represent a link between Black people and their past or, to use Pierre Nora’s term, they are lieux de mémoire. This is why these authors oppose the more or less general attitude which consists in dismissing these clichéd-figures from the field of representation, for this would amount to erasing an entire the inception segment of African American history. Going against the trend of the time, these playwrights thus give a voice to those silenced by normative history and, to decolonize symbols which after all belong to the past of Black people, Baraka in The Slave (1964), Fuller in A Soldier's Play (1981) and Hansberry in Les Blancs (1966) also invest these characters with a new significance. [less ▲]

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See detailThe resumptive pronoun in the relative clause in Late Egyptian
Winand, Jean ULg

in Journal of Egyptian Archaeology (2009), 95

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See detailNew developments in Belgian childcare policy and practice
Vandenbroeck, M.; Pirard, Florence ULg; Peeters, J.

in European Early Childhood Education Research Journal (2009), 17(3), 408-416

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