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See detailFirst-principles design of efficient solar cells using two-dimensional arrays of core-shell and layered SiGe nanowires
Pekoz, Rengin; Malcioglu, Osman Baris ULg; Raty, Jean-Yves ULg

in Physical Review. B, Condensed Matter and Materials Physics (2011), 83(3), 0353176-03531760353176

Research for third generation solar cell technology has been driven by the need to overcome the efficiency and cost problems encountered by current crystalline Si- and thin-film-based solar cells. Using ... [more ▼]

Research for third generation solar cell technology has been driven by the need to overcome the efficiency and cost problems encountered by current crystalline Si- and thin-film-based solar cells. Using first-principles methods, Ge/Si and Si/Ge core/shell and Si-Ge layered nanowires are shown to possess the required qualities for an efficient use in photovoltaic applications. We investigate the details of their band structure, effective mass, absorption property, and charge-carrier localization. The strong charge separation and improved absorption in the visible spectrum indicate a remarkable quantum efficiency that, combined with new designs, compares positively with bulk Si. [less ▲]

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See detailInfections à herpèsvirus chez les ruminants et les éléphants
Thiry, Etienne ULg; Thiry, J.

in Bulletin de l'Académie Vétérinaire de France (2011), 164

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See detailInvolvement of z-MMP-2 in Zebrafish lymphangiogenesis
Paupert, Jenny ULg; Pendeville, Hélène; Detry, Benoît ULg et al

Conference (2011)

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See detailpi N transition distribution amplitudes: Their symmetries and constraints from chiral dynamics
Pire, Bernard; Semenov-Tyan-Shanskiy, Kirill ULg; Szymanowski, Lech

in Physical Review. D : Particles and Fields (2011), 84

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See detailDu coto sur nos coteaux. Une espèce exotique à tenir à loeil!
Piqueray, Julien ULg; Vanderhoeven, Sonia; Halford, Mathieu ULg et al

Article for general public (2011)

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See detailKurt Smith, Matter Matters. Metaphysics and Methodology in the Early Modern Period
Dubouclez, Olivier ULg

in Bulletin cartésien (2011)

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See detailGobernabilidad desde las agrupaciones usuarias del agua con fines agrícolas en 8 municipios del territorio de la Mancomunidad de Municipios de la cuenca del río Naranjo (MANCUERNA)
Estrada Orozco, Nick Kenner ULg; Mux, Victor

in Tikalia (2011), XXIX(1-2), 37-46

En Guatemala, para alcanzar los Objetivos de desarrollo del Milenio se implemen- tan Programas Conjuntos con el apoyo del Sistema de Naciones Unidas. Existen en la actualidad cinco Programas Conjuntos ... [more ▼]

En Guatemala, para alcanzar los Objetivos de desarrollo del Milenio se implemen- tan Programas Conjuntos con el apoyo del Sistema de Naciones Unidas. Existen en la actualidad cinco Programas Conjuntos apoyando temas de seguridad alimen- taria, construcción de la paz, cambio climático, género y gobernabilidad económi- ca del agua. En el marco del programa conjunto: “Gobernabilidad económica en agua y sanea- miento” se decidió realizar un estudio que permitiera conocer la gobernabilidad en el sector a partir de hacer un inventario de las agrupaciones usuarias de agua con fines agrícolas y conocer algunas de sus características, este estudio contó con la asesoría técnica de la Organización de las Naciones Unidas para la Agricultura y la Alimentación –FAO– y el apoyo en campo de las comunidades asociadas por el agua y el medio ambiente de la cuenca del río Naranjo –CADISNA– en coordina- ción con el Ministerio de Agricultura Ganadería y Alimentación –MAGA– y go- biernos locales. El estudio se realizó en 8 municipios, 3 del departamento de Quetzaltenango y 5 de San Marcos, se identificaron 126 grupos de riego, de ellos, 73 pudieron ser carac- terizados. Se conoció que el 92% de los 73 grupos tiene una junta directiva que vela por el funcionamiento del sistema y la producción se ve diversificada en al menos 14 diferentes hortalizas siendo la principal el cultivo de la Papa. Sin embar- go sólo el 45% paga una tarifa a su grupo y el 60% de los usuarios necesita crédito para poder producir, haciendo uso de al menos 271.99 Lts/seg de agua para fines agrícolas. [less ▲]

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See detailL’évaluation de la réflexivité dans des portfolios électroniques dans le cadre d’un cours de Soins Palliatifs en formation médicale de base
Giet, Didier ULg; MASSART, Valérie ULg; Deum, Mélanie ULg et al

Conference (2011)

Le cours de Médecine Palliative est organisé en avant-dernière année des études médicales de 2e cycle par deux enseignants, Médecin Généraliste et Médecin Hospitalier. Ce cours a été dispensé pendant 10 ... [more ▼]

Le cours de Médecine Palliative est organisé en avant-dernière année des études médicales de 2e cycle par deux enseignants, Médecin Généraliste et Médecin Hospitalier. Ce cours a été dispensé pendant 10 ans selon un format traditionnel ex cathedra. Il était dispensé par de nombreux intervenants pluridisciplinaires. Une évaluation des enseignements a montré que les étudiants jugeaient les interventions trop théoriques, sans lien avec leurs questions et préoccupations. En conséquence, c’est la discipline « Médecine Palliative et de Soins de Vie » qui ne suscitaient pas d’intérêt. De nouveaux objectifs et de nouvelles modalités pédagogiques ont été introduits en 2010-2011 à l’attention de 100 étudiants. L’objectif principal est le développement chez les étudiants d’une attitude réflexive face à la discipline « Médecine Palliative ». Les outils pédagogiques introduits dans le dispositif sont le portfolio électronique, une vignette clinique évolutive, l’accompagnement à distance de chaque étudiant par un tuteur, des cours en présentiel. La pratique réflexive de chaque étudiant est évaluée au terme du dispositif, conjointement par les 2 enseignants sur base de critères et d’indicateurs. Voici une illustration des critères utilisés : - Intensité des interactions dans le carnet d’apprentissage électronique (et aux cours) - Pertinence des interventions - Engagement dans la tâche - Capacité réflexive (pertinence de l’analyse et de la régulation de la situation décrite dans la vignette) - Qualité de l’auto-évaluation et identification des éléments déclencheurs de progrès - Degré d’apprentissage (Bilan d’atteinte des objectifs fixés par le cours et décrits) La communication orale présentera le dispositif d’évaluation, les critères et les indicateurs utilisés, les premiers résultats de l’évaluation des étudiants, les perspectives de régulation du dispositif d’évaluation. [less ▲]

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See detailMultiparametric observation and analysis of the Sea
Alvera Azcarate, Aïda ULg; Poulain, Pierre-Marie

in Ocean Dynamics (2011)

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See detailMorphological, chromosomal, and genic differences between sympatric Rattus rattus and Rattus satarae in South India
Pagès, Marie ULg; Corbet, Gordon; Orth, Annie et al

in Journal of Mammalogy (2011), 92(3), 659670

Two morphological forms of black rats (Rattus cf. rattus) were found living in sympatry in high-altitude dense forests of the Nilgiri Mountains, South India. The 1st one, often brown- or gray-bellied ... [more ▼]

Two morphological forms of black rats (Rattus cf. rattus) were found living in sympatry in high-altitude dense forests of the Nilgiri Mountains, South India. The 1st one, often brown- or gray-bellied, also is found commensal in lowland settlements and represents Rattus rattus cf. rufescens (Gray 1837), with a diploid number (2N) of 38 chromosomes. The 2nd form, which has most often a pure white belly, has 2N 5 42 chromosomes and is referable to Rattus r. satarae Hinton, 1918, based on morphological comparison with the holotype. A multidisciplinary study indicates that these 2 forms are characterized by clear-cut differences in biochemistry (electrophoresis of homologous isozymes), molecular sequences (mitochondrial and nuclear DNA), and chromosomes (detailed banding analysis). All these data, coupled to diagnostic morphological characteristics, support the hypothesis that Rattus satarae and Rattus rattus are separate, sympatric species, with no gene flow between them. Their similar external morphology is interpreted as the result of convergence through occupying the same ecological niche. [less ▲]

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See detailAtlas linguistique de la Wallonie. Tome 17. Famille, vie et relations sociales
Baiwir, Esther ULg

Book published by PULg - Presses universitaires de Liège - Sciences Humaines (2011)

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See detailEcological or recalled assessments in chronic musculoskeletal pain? A comparative study of prospective and recalled pain assessments in low back pain and lower limb painful osteoarthritis.
Perrot, Serge; Marty, Marc; Legout, Valerie et al

in Pain Medicine : The Official Journal of the American Academy of Pain Medicine (2011), 12(3), 427-36

OBJECTIVES: The objective of this study was to compare ecological and recalled pain intensity assessments over 29 days in hip and knee osteoarthritis (O) and chronic low back pain (L). PATIENTS AND ... [more ▼]

OBJECTIVES: The objective of this study was to compare ecological and recalled pain intensity assessments over 29 days in hip and knee osteoarthritis (O) and chronic low back pain (L). PATIENTS AND METHODS: Rheumatologists were asked to enroll patients with O and L, with pain intensity above 40 mm, in a prospective study for 29 days. Pain intensity was assessed with physicians on Days 1 and 29, and ecologically, over the intervening 28-day period, by random phone calls. RESULTS: We carried out correlation analyses for 353 (159 O, 194 L) patients: Overall recalled daily pain was strongly correlated with calculated 3-day mean pain assessments (r=0.96 [O]; 0.93 [L]) and evening pain (r=0.96 [O], 0.90 [L]). Correlations between ecological and recalled measures were stronger for recall over the last 7 days than for recall over the last 28 days in osteoarthritis patients (r=0.78, r=0.63), but were similar for both recall periods in low back pain patients (r=0.70, r=0.72). Correlations between assessments for the last 7 and 28 days were stronger for ecological (r=0.88 [O], 0.91 [L]) than for clinical (r=0.77 [O]; 0.86 [L]) assessments. After adjustment for current pain intensity, correlations remained significant for ecological assessments, but not for clinical assessments. Recalled pain assessments were more accurate when made after 24 hours (r=0.71 [O]; 0.70 [L]) than when made after 48 hours (r=0.63 [O]; 0.61 [L]). CONCLUSIONS: For both low back pain and osteoarthritis, overall daily pain recall is a reliable measurement correlated with daily ecological measurements, whereas a rapid decrease in recall occurs after 48 hours. The most reliable period for pain recall was 7 days, but the results obtained were influenced by current pain. [less ▲]

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See detailAgathe de Catane (5 février), itinéraire d’un culte : de son martyre à la distribution de ses reliques
George, Philippe ULg

in Sant’Agata, Il reliquiario a busto. Contributi interdisciplinari. (2011)

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See detailObliged permanent pastures : main future of ruminant production in Belgium
Stilmant, Didier; Stassart, Pierre M ULg; Peeters, Pierre et al

in Grassland Science in Europe (2011), 16

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See detailExplaining Returns on Venture Capital-Backed Companies: Evidence from Belgium
Alperovych, Yan ULg; Hübner, Georges ULg

in Research in International Business and Finance (2011), 25(3), 277-295

Using a unique database of 990 VC-backed Belgian firms, we study whether compatibility between corporate and environmental characteristics matters. We address two questions: (i) Does the interplay of ... [more ▼]

Using a unique database of 990 VC-backed Belgian firms, we study whether compatibility between corporate and environmental characteristics matters. We address two questions: (i) Does the interplay of company, industry, and product factors affect the expected returns of the VC-backed firms? (ii) Does the joint compatibility between these factors results in a non-linear increase in performance? Panel data analysis shows a significant influence of factor compatibility on returns. Quantile regression analysis indicates a non-linear relationship between the return and its determinants. Conjoint analysis identifies certain combinations of factors, which collapse into classifiable patterns described in the strategic management literature. [less ▲]

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See detailPreliminary experience of a modified Maquet technique for repair of cranial cruciate ligament rupture in dogs
Etchepareborde, Sébastien; Brunel, Laurencie ULg; Bolen, Géraldine ULg et al

in Veterinary and Comparative Orthopaedics and Traumatology (2011)

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See detailL’adaptation au changement climatique en région wallonne : Fiche thématique : Forêt
Frisson, Gwenn ULg; Monty, Arnaud ULg; Mahy, Grégory ULg et al

Report (2011)

• Les changements attendus sont importants mais difficiles à quantifier. Seules des tendances peuvent être dégagées. • Pour le domaine de la forêt, il est d’autant plus nécessaire d’anticiper les effets ... [more ▼]

• Les changements attendus sont importants mais difficiles à quantifier. Seules des tendances peuvent être dégagées. • Pour le domaine de la forêt, il est d’autant plus nécessaire d’anticiper les effets du changement climatique dès maintenant, étant donné la longévité importante des arbres forestiers. • Favoriser l’adaptation naturelle et augmenter la résilience au changement de la forêt peut se faire au moyen d’une sylviculture plus durable et plus proche du fonctionnement naturel de l’écosystème forestier. Diminuer les menaces d’ordre non climatique participe également à cela. • La forêt ne doit pas seulement se mesurer en termes de valeur intrinsèque mais également en termes de services écosystémiques. [less ▲]

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See detailPancreas preservation for pancreas and islet transplantation: a minireview
SQUIFFLET, Jean-Paul ULg; LeDinh, Hieu; DE ROOVER, Arnaud ULg et al

in Transplantation Proceedings (2011), 43

Pancreas preservation by cold storage using University of Wisconsin solution was the <br />mainstay method used for pancreas transplantation during the past 2 decades. Other <br />solutions, such as HTK ... [more ▼]

Pancreas preservation by cold storage using University of Wisconsin solution was the <br />mainstay method used for pancreas transplantation during the past 2 decades. Other <br />solutions, such as HTK, Celsior, and SCOT 15, could not demonstrate any advantage for <br />short preservation periods. But the advent of clinical islet transplantation and the larger <br />use of controlled non–heart-beating donors have prompted the transplantation community <br />to develop methods for increasing pancreas graft quality while preventing ischemic <br />reperfusion damages. Oxygenation by 1- or 2-layer methods during pancreas preservation, <br />as well as the use of perfluorocarbons, might increase the islet yield. Based on the former <br />methods, there is a renewed interest in machine perfusion and oxygenation in pancreas <br />preservation for pancreas transplantation and islet preparation. [less ▲]

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