Last 7 days
Bookmark and Share    
Full Text
Peer Reviewed
See detailShort communication: Novel method to predict body weight of primiparous dairy cows throughout the lactation
Vanrobays, Marie-Laure ULg; Vandenplas, Jérémie ULg; Hammami, Hedi ULg et al

in Journal of Dairy Science (2015), 98

Body weight (BW) of dairy cows can be estimated using linear conformation traits (calculated BW; CBW), which are generally recorded only once during a lactation. However, predicted BW (PBW) throughout the ... [more ▼]

Body weight (BW) of dairy cows can be estimated using linear conformation traits (calculated BW; CBW), which are generally recorded only once during a lactation. However, predicted BW (PBW) throughout the lactation would be useful, e.g., at milk-recording dates allowing feed-intake prediction for advisory purposes. Therefore, a 2-step approach was developed to obtain PBW for each milk-recording date. In the first step, a random-regression test-day model was used with CBW as observations to predict PBW. The second step consisted in changing means and (co)variances of prior distributions for the additive genetic random effects of the test-day model by using priors derived from results of the first step to predict again PBW. A total of 25,061 CBW from 24,919 primiparous Holstein cows were computed using equations from literature. Using CBW as observations, PBW was then predicted over the whole lactation for 232,436 dates corresponding to 207,375 milk-recording dates and 25,061 classification dates. Results showed that using both steps (the 2-step approach) provided more accurate predictions than using only the first step (the one-step approach). Based on the results of this preliminary study, BW of dairy cows could be predicted throughout the lactation using this procedure. These predictions could be useful in milk-recording systems to compute traits of interest (e.g., feed-intake prediction). The developed novel method is also flexible because actual direct measurements of BW can also be used together with CBW, the prediction model being able to accommodate different levels of accuracies of used BW phenotypes. [less ▲]

Detailed reference viewed: 31 (12 ULg)
Full Text
Peer Reviewed
See detailEducation et formation en médecine gériatrique en Europe : challenge du futur?
ROLLER, REGINA ELISABETH; PETERMANS, Jean ULg

in Gériatrie et Psychologie Neuropsychiatrie du Vieillissement (2015)

Detailed reference viewed: 21 (0 ULg)
Full Text
See detailDéveloppement récent de la culture de l'épeautre en Belgique
Burny, Philippe ULg

in Watillon, Bernard; Bodson, Bernard (Eds.) Livre Blanc "Céréales", édition février 2015 (2015)

L'épeautre est une culture ancienne, pratiquée depuis des siècles, et qui a été progressivement remplacée, comme le seigle, par le froment. Il s'est cependant maintenu modestement dans quelques régions ... [more ▼]

L'épeautre est une culture ancienne, pratiquée depuis des siècles, et qui a été progressivement remplacée, comme le seigle, par le froment. Il s'est cependant maintenu modestement dans quelques régions aux sols plus pauvres et au climat plus rigoureux que ceux qui conviennent le mieux au froment. Les aspects "santé" prenant de plus en plus d'importance dans les pays riches, la bonne réputation de l'épeautre en ce domaine a permis un récent regain d'intérêt pour cette culture, dont les prix se sont envolés au cours de l'année 2014. Cette évolution est-elle durable ou ne sera-t-elle qu'un feu de paille ? [less ▲]

Detailed reference viewed: 8 (1 ULg)
See detailEtudes sartriennes, n° 19 : Jean-Paul Sartre, Morale et Histoire. Conférence à l’institut Gramsci 1964
Bourgault, Jean; Cormann, Grégory ULg

Book published by Ousia (2015)

Detailed reference viewed: 19 (0 ULg)
See detailApprendre les sciences sociales par l'image
Jadoulle, Jean-Louis ULg

in Durisch Gauthier, Nicole; Hertig, Philippe; Marchand Reymond, Sophie (Eds.) Regards sur le monde. Apprendre avec et par l’image à l’école (2015)

Detailed reference viewed: 19 (0 ULg)
Full Text
Peer Reviewed
See detailEffets du froid sur les stades précoces de développement du maïs (Zea mays)
Riva-Roveda, Laetitia ULg; Périlleux, Claire ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2015), 19(1), 42-52

Detailed reference viewed: 25 (11 ULg)
Full Text
Peer Reviewed
See detailFacile deposition of ZnO:Cu films: Structural and optical characterization
Ivanova, T.; Harizanova, A.; Koutzarova, T. et al

in Materials Science in Semiconductor Processing (2015), 30

Sol-gel technology has been applied for preparation of ZnO:Cu films. The proposed facile approach allows obtaining a wide variety of copper doped zinc oxide systems, revealing different structural and ... [more ▼]

Sol-gel technology has been applied for preparation of ZnO:Cu films. The proposed facile approach allows obtaining a wide variety of copper doped zinc oxide systems, revealing different structural and optical behaviors. The work presents structural and optical studies depending on Cu concentration and thermal treatments in the range of 500-800°C. The structural analysis is performed by X-Ray diffraction (XRD). It reveals that small Cu addition enhances the film crystallization. Increasing copper concentration results in deterioration of ZnO:Cu crystallization. XRD study manifests no Cu oxide phases in ZnO:Cu film structure for lower Cu additions. For a specific higher copper concentration, an appearance of a small fraction of copper oxide is detected. Vibrational properties have been characterized by FTIR spectroscopy. The effect of the copper introduction into ZnO reveals a slight change of optical properties compared to ZnO films for certain Cu ratios. ZnO:Cu films with higher copper contents manifest different optical behaviors with very high transparency in spectral visible range. [less ▲]

Detailed reference viewed: 12 (1 ULg)
Full Text
Peer Reviewed
See detailCombining mesoporosity and Ti-doping in hematite films for water splitting
Toussaint, Caroline ULg; Tran, Hoang Son ULg; Colson, Pierre ULg et al

in Journal of Physical Chemistry C (2015), 119(4), 1642-1650

(Graph Presented). In this study, we report the synthesis of Ti-doped mesoporous hematite films by soft-templating for application as photoanodes in the photoelectrolysis of water (water splitting ... [more ▼]

(Graph Presented). In this study, we report the synthesis of Ti-doped mesoporous hematite films by soft-templating for application as photoanodes in the photoelectrolysis of water (water splitting). Because the activation of the dopant requires a heat treatment at high temperature (≥800°C), it usually results in the collapse of the mesostructure. We have overcome this obstacle by using a temporary SiO2 scaffold to hinder crystallite growth and thereby maintain the mesoporosity. The beneficial effect of the activated dopant has been confirmed by comparing the photocurrent of doped and undoped films treated at different temperatures. The role of the mesostructure was investigated by comparing dense, collapsed, and mesoporous films heated at different temperatures and characterized under front and back illumination. It turns out that the preservation of the mesotructure enables a better penetration of the electrolyte into the film and therefore reduces the distance that the photogenerated holes have to travel to reach the electrolyte. As a result, we found that mesoporous films with dopant activation at 850°C perform better than comparable dense and collapsed films. [less ▲]

Detailed reference viewed: 11 (0 ULg)
Full Text
See detailLearning for resilience: Insights from Cambodia's rural communities
Diepart, Jean-Christophe ULg

Book published by The Learning Institute (2015)

Detailed reference viewed: 14 (1 ULg)
Full Text
Peer Reviewed
See detailTrifles for 'Unflemings'. Teaching Dutch Literary History in Nineteenth-Century Wallonia
Steyaert, Kris ULg

in Van Kalmthout, T.; Zuidervaart, H. (Eds.) The Practice of Philology in the Nineteenth-Century Netherlands (2015)

Detailed reference viewed: 22 (5 ULg)
Peer Reviewed
See detailCalcium-dependent potassium channels.
Drion, Guillaume ULg; Philippart, Fabian ULg; Sepulchre, Rodolphe ULg et al

in Jaeger, Dieter; Jung, Ranu (Eds.) Encyclopedia of Computational Neuroscience (2015)

Detailed reference viewed: 21 (4 ULg)
Full Text
Peer Reviewed
See detailOsteoporosis in patients taking selective serotonin reuptake inhibitors: a focus on fracture outcome
Bruyère, Olivier ULg; Reginster, Jean-Yves ULg

in Endocrine (2015), 48(1), 65-68

Depression is one of the most important mental health problems and a leading cause of disability. Selective serotonin reuptake inhibitors (SSRIs) are considered as first-line therapy for the treatment of ... [more ▼]

Depression is one of the most important mental health problems and a leading cause of disability. Selective serotonin reuptake inhibitors (SSRIs) are considered as first-line therapy for the treatment of depressive symptoms among older adults because of their presumed favorable adverse effect profile. However, they could have deleterious effects on the bone. Evidence from longitudinal, crosssectional, and prospective cohort studies suggests that the use of antidepressants at therapeutic doses is associated with decreased bone mineral density and increased fracture risk. The association between SSRIs use and fracture risk could potentially differ depending on dose, exposure duration, time of exposure, age, or sex. However, the risk of fracture declined rapidly after discontinuation of use of SSRIs. The evidence now seems sufficient to consider adding SSRIs to the list of medications that contribute to osteoporosis. In practice, assessment of risk factor for osteoporosis or fractures could be made taking into account age, gender, duration, and severity of depression, length of SSRI treatments, and other concurrent risk factors. [less ▲]

Detailed reference viewed: 31 (14 ULg)
Full Text
Peer Reviewed
See detailModeling of cobalt and copper speciation in metalliferous soils from Katanga (Democratic Republic of Congo)
Pourret, Olivier; Lange, Bastien; Houben, David et al

in Journal of Geochemical Exploration (2015), 149

Detailed reference viewed: 11 (3 ULg)
Full Text
See detailJeunesse, territorialité et postcolonialisme
Collin, Jonathan ULg

Diverse speeche and writing (2015)

Cette séance propose de questionner les théories postcoloniales dans le champ des études en sciences sociales sous l'angle de la jeunesse et de la territorialité dans les anciennes métropoles, en ... [more ▼]

Cette séance propose de questionner les théories postcoloniales dans le champ des études en sciences sociales sous l'angle de la jeunesse et de la territorialité dans les anciennes métropoles, en particulier dans le contexte français des banlieues ou cités. Nous aborderons les écrits de deux sociologues – Mohammed et Lapeyronnie – ayant mobilisé, dans leurs analyses, des perspectives et outils redevables des études postcoloniales pour rendre intelligibles les pratiques de jeunes vivant dans ces espaces urbains ainsi que les politiques publiques qui leur sont spécifiquement appliquées. A côté de ces travaux, il nous a semblé intéressant de revenir à un auteur plus strictement "postcolonial" dont le questionnement porte explicitement sur le rapport entre ville et postcolonialisme. Pour ce faire, nous ferons appel lors de cette séance à Jane M. Jacobs. Textes : Lecture principale : - Jacobs Jane M., 1996, "Eastern Trading. Diasporas, Dwelling and Place", in Edge of Empire: Postcolonialism and the City, Routledge, London and New York, p.70-102. Lectures complémentaires : - Mohammed Marwan, 2011, « Des bandes de ‘blousons noirs’ aux Noirs en blousons ? » (Chapitre 5), in La formation des bandes, PUF, Le Lien Social, Paris, p.289-323. - Lapeyronnie Didier, 2005, « La banlieue comme théâtre colonial, ou la fracture coloniale dans les quartiers », in Bancel et al., La fracture coloniale, La Découverte, Cahiers libres, p.209-218. [less ▲]

Detailed reference viewed: 14 (2 ULg)
Full Text
Peer Reviewed
See detailGiven to a Deity? Religious and Social Reappraisal of Human Consecrations in the Hellenistic and Roman East
Caneva, Stefano ULg; Delli Pizzi, Aurian ULg

in Classical Quarterly (2015), 65(1), 167-191

Various cases of human beings ‘dedicated’ to deities are attested in Greek epigraphic evidence. Are these kinds of offerings comparable to the dedication of inanimate objects? Besides, does the fact that ... [more ▼]

Various cases of human beings ‘dedicated’ to deities are attested in Greek epigraphic evidence. Are these kinds of offerings comparable to the dedication of inanimate objects? Besides, does the fact that someone is said to be ‘sacred’ to a specific deity necessarily involve that he went through a process of dedication? This article aims at providing a global picture of different situations in which processes of dedications took place. Among the several issues that are tackled, the cornerstone of this article consists of two questions: for what purposes did some people decide to consecrate a human being to a deity and what were the consequences for the consecrated individuals on religious and social levels? Different categories of persons will be contrasted, in terms of processes through which they acquire their new status but also in terms of the freedom/lack of freedom which is conveyed by this new status. It will also be shown that, as far as method is concerned, it is necessary to complete a lexical analysis with a contextual perspective for a deeper understanding of the problem. [less ▲]

Detailed reference viewed: 245 (12 ULg)
Full Text
See detailFrom Alexander to the Theoi Adelphoi: Foundation and Legitimation of a Dynasty
Caneva, Stefano ULg

Book published by Peeters (2015)

This book provides a cultural and social history of the rise and legitimation of the concept of dynastic continuity in the early history of the Ptolemaic Empire. The scope of the study is therefore ... [more ▼]

This book provides a cultural and social history of the rise and legitimation of the concept of dynastic continuity in the early history of the Ptolemaic Empire. The scope of the study is therefore neither to provide a general overview of third-century Ptolemaic history, nor to discuss in detail the administrative and economic structures of the Ptolemaic state. Rather, its purpose is to investigate the ways by which the first Ptolemies negotiated and constructed a representation of their power as a dynastic house aspiring to universal dominion, protected by the gods and legitimately continuing the heritage of the Macedonian and Egyptian monarchies. It is argued that they managed to do so by operating within different socio-cultural and ethnic milieus and by pursuing their strategies on a two-fold level: on the one hand, by continuously reshaping the relationship between the present events of the ruling house and its historical and mythical past, so as to adapt it to new political and cultural agendas; on the other hand, by shifting the border between the spheres of human and divine power in order to ensure themselves the legitimacy and loyalty stemming from religious thought and practice. Discussed evidence comprises Greek and Egyptian sources, literary and documentary texts, iconographic and archaeological evidence from the Macedonian conquest of Egypt under Alexander to the ascension of Ptolemy III Euergetes. Whenever possible, a new, encompassing evaluation of old evidence has gained new impetus from the intensive analysis of newly published sources. Secondly, the complex cultural and social factors operating in the construction and legitimation of the Ptolemaic dynasty have been discussed by drawing on the contribution of up-to-date scholarship in cultural and religious history as well as in sociology. The rooting of Ptolemaic power in Egypt and the Eastern Mediterranean is studied as the movement from the immediate but unstable right of conquest established by Alexander, and subsequently claimed by the satrap Ptolemy, to the development of a mature and coherent system of power practices and representations. The structure of the book is meant to provide readers with a chronological and thematic discussion ranging from Alexander’s conquest of Egypt to the first years of Ptolemy III. However, the six chapters that constitute this study can also be read separately as they are conceived as the monographic treatment of major moments or aspects of the cultural, political, and religious history of the early Hellenistic period. Chapter 1 deals with the premises of Ptolemaic power in Egypt by focusing on the time of Alexander’s conquest. The implications of Alexander’s sonship to Zeus Ammon in propaganda and in religion are reviewed by drawing attention to the plurality of audiences (Macedonians, Greeks, Egyptians) for which this motif was conceived and used. Chapter 2 discusses the conflicting patterns of legitimation in the age of the Successors and how Ptolemy exploited them in his rise from satrap to king. Some seminal moments of Ptolemy’s career are re-examined: the acquisition of Alexander’s corpse as a source of embodied legitimacy; the interactions between the leader and pre-existing Macedonian and Egyptian elites as they appear in assembly scenes of Greek historiography and in the hieroglyphic Satrap stele; Ptolemy’s help to the Rhodians against Antigonus and Demetrius and the entanglement between royal charisma and religious honours. Chapter 3 focuses on the figure of Dionysus in Ptolemaic religion and culture from a twofold perspective. Firstly, the chapter provides an innovative analysis of the religious and ideological role of Dionysus in Ptolemy II’s Alexandrian procession described by Callixeinus of Rhodes. Secondly, it aims at offering a contribution for a reappraisal of the figure of Dionysus, of his cults and of the role of his figure within the larger context of the Ptolemaic Empire in the third century BC. Chapter 4 discusses the patterns of divinization of Arsinoe II within the royal couple through the most complete documentary dossier collected thus far on the subject. Rather than constituting the aim of the research, the debate concerning the chronology of Arsinoe’s death and divinization has provided the rough framework for a new investigation of how the image of a solid royal couple was invented and spread in religious life and in propaganda. Diachronic developments in the configurations of the dynastic couple are traced through Greek and Egyptian evidence and discussed in relation to the changing of political agendas during the reign of Ptolemy II. Chapter 5 studies the contribution of Ptolemy III to the construction of Ptolemaic dynastic continuity through old and new evidence, notably by providing fresh observations concerning the recently published decree of Alexandria (243 BC) for the understanding of Ptolemaic royal festivals in general and, more in particular, for the history of the festival Ptolemaia in the second half of the 3rd century BC. Chapter 6 breaks with chronological continuity to trace, through literary and documentary evidence from the Roman period, the development of the tradition envisaging Alexander’s body as a talismanic relic protecting the city of Alexandria. The purpose of this epilogue is to provide a methodological essay of interpretation of cultural traditions in the longue durée, when patterns of continuity developed under the Ptolemies were separated from their original context of diffusion and consequently were re-used to shape the civic identity of Alexandria within the new and broader framework of the Roman Empire. Although focus on the construction of a dynasty as a sequence of legitimate, kindred holders of monarchic power makes Ptolemaic kings and queens the central object of this study, it is argued that sovereigns cannot be considered as the sole holders of the initiative in the political, ideological and religious processes relating to the construction of royal and dynastic imagery. On the contrary, it appears that social agents other than the holders of supreme leadership not only reacted to top-down stimulation, but they also constructed, for their own use, representations of the monarchs that interacted with the message issued by the central power. From this perspective, therefore, dynastic continuity results from the intertextual combination of a variety of ideological and religious motifs stemming from different agents and occasions of communication. [less ▲]

Detailed reference viewed: 170 (4 ULg)
See detailComment l'apprentissage du concept "genre" se construit-il tout au long de la scolarité ?
Simons, Germain ULg; Delbrassine, Daniel ULg; Van Hoof, Florence ULg

Diverse speeche and writing (2015)

Par "genre", nous entendons des "types de textes ", pris au sens large, tant à l'oral qu'à l'écrit (exposés, débats divers, entretiens d'embauche, synthèses, CV, "graded-readers", histoires courtes ... [more ▼]

Par "genre", nous entendons des "types de textes ", pris au sens large, tant à l'oral qu'à l'écrit (exposés, débats divers, entretiens d'embauche, synthèses, CV, "graded-readers", histoires courtes, contes, romans et albums de jeunesse. [less ▲]

Detailed reference viewed: 36 (2 ULg)
Full Text
Peer Reviewed
See detailQuantitative temperature monitoring of a heat tracing experiment using cross-borehole ERT
Hermans, Thomas ULg; Wildemeersch, Samuel ULg; Jamin, Pierre ULg et al

in Geothermics (2015), 53

The growing demand for renewable energy leads to an increase in the development of geothermal energy projects and heat has become a common tracer in hydrology and hydrogeology. Designing geothermal ... [more ▼]

The growing demand for renewable energy leads to an increase in the development of geothermal energy projects and heat has become a common tracer in hydrology and hydrogeology. Designing geothermal systems requires a multidisciplinary approach including geological and hydrogeological aspects. In this context, electrical resistivity tomography (ERT) can bring relevant, qualitative and quantitative information on the temperature distribution in operating shallow geothermal systems or during heat tracing experiments. We followed a heat tracing experiment in an alluvial aquifer using cross-borehole time-lapse ERT. Heated water was injected in a well while water of the aquifer was extracted at another well. An ERT section was set up across the main flow direction. The results of ERT were transformed into temperature using calibrated petrophysical relationships. These ERT-derived temperatures were then compared to direct temperature measurements in control piezometers collected with distributed temperature sensing (DTS) and groundwater temperature loggers. Spatially, it enabled to map the horizontal and vertical extent of the heated water plume, as well as the zones where maximum temperatures occurred. Quantitatively, the temperatures and breakthrough curves estimated from ERT were in good agreement with the ones observed directly during the rise and maximum of the curve. An overestimation, likely related to 3D effects, was observed for the tail of the heat breakthrough curve. The error made on temperature can be estimated to be between 10 to 20 %, which is a fair value for indirect measurements. From our data, we estimated a quantification threshold for temperature variation of 1.2°C. These results suggest that ERT should be considered when designing heat tracing experiments or geothermal systems. It could help also to assess the geometrical complexity of the concerned reservoirs. It also appears that ERT could be a useful tool to monitor and control geothermal systems once they are in operation. [less ▲]

Detailed reference viewed: 169 (46 ULg)