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See detailAnaerobic methane oxidation and aerobic methane production in an east African great lake (Lake Kivu)
Roland, Fleur ULiege; Morana, Cédric; Darchambeau, François et al

in Journal of Great Lakes Research (2018)

We investigated CH4 oxidation in the water column of Lake Kivu, a deep meromictic tropical lake with CH4-rich anoxic deep waters. Depth profiles of dissolved gases (CH4 and N2O) and a diversity of ... [more ▼]

We investigated CH4 oxidation in the water column of Lake Kivu, a deep meromictic tropical lake with CH4-rich anoxic deep waters. Depth profiles of dissolved gases (CH4 and N2O) and a diversity of potential electron acceptors for anaerobic CH4 oxidation (NO3−, SO4 2−, Fe and Mn oxides) were determined during six field campaigns between June 2011 and August 2014. Denitrification measurements based on stable isotope labelling experiments were performed twice. In addition, we quantified aerobic and anaerobic CH4 oxidation, NO3− and SO4 2− consumption rates,with and without the presence of an inhibitor of SO4 2−-reducing bacteria activity. Aerobic CH4 production was also measured in parallel incubations with the addition of an inhibitor of aerobic CH4 oxidation. Themaximu m aerobic and anaerobic CH4 oxidation rates were estimated to be 27±2 and 16±8 μmol/L/d, respectively. We observed a difference in the relative importance of aerobic and anaerobic CH4 oxidation during the rainy and the dry season, with a greater role for aerobic oxidation during the dry season. Lower anaerobic CH4 oxidation rates were measured in presence of molybdate in half of the measurements, suggesting the occurrence of linkage between SO4 2− reduction and anaerobic CH4 oxidation. NO3− consumption and dissolved Mn production rates were never high enough to sustain themeasured anaerobic CH4 oxidation, reinforcing the idea of a coupling between SO4 2− reduction and CH4 oxidation in the anoxic waters of Lake Kivu. Finally, significant rates (up to 0.37 μmol/L/d) of pelagic CH4 production were also measured in oxygenated waters. [less ▲]

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See detailImplémentation des Learning Analytics dans l'enseignement supérieur
Detroz, Pascal ULiege; Hubert, Sylviane ULiege; Auquière, Amélie ULiege et al

Report (2018)

This report focuses on the deployment of Learning Analytics in higher education, its conditions and potential contributions. A case study was carried out at the University of Liège in order to determine ... [more ▼]

This report focuses on the deployment of Learning Analytics in higher education, its conditions and potential contributions. A case study was carried out at the University of Liège in order to determine the relevance of this type of approach in a french-speaking Belgian university. [less ▲]

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See detailEffects of Fertilizer use on Potato Production in Western Rwanda
Maniriho, Aristide ULiege; Habyarimana, Cyprien

in East African Journal of Science and Technology (2018), 8(2), 28-45

This study analysed the effects of fertilizer use on potato production in Kabatwa Sector, Nyabihu District, in Western Rwanda. Data were collected among 100 potato growers randomly selected in Kabatwa ... [more ▼]

This study analysed the effects of fertilizer use on potato production in Kabatwa Sector, Nyabihu District, in Western Rwanda. Data were collected among 100 potato growers randomly selected in Kabatwa sector for the season 2014B. A well structured questionnaire was distributed in August 2014, and required information about the respondent’s identification, fertilizer use, potato production and related constraints. The paired-samples T-test was used for data analysis. The results show that fertilizers have positive effects on potato output. The results from the paired-samples t-test show that the difference between the average crop production after and the average crop production before the adoption of fertilizers in the study area (1,155 kgs) is statistically different from zero following that the corresponding p-value (labelled Sig. 2-tailed) is smaller than 0.05. Accordingly, there has been a statistically significant difference between the potato output level comparing before and after fertilizer use in the study area. It was recommended that the Government should enhance fertilizer accessibility through credit facility to farmers, facilitate access to proximity extension services and encourage farmers to group into cooperatives. [less ▲]

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See detailDeterring solidarity in border spaces: Acomparative analyses of food distribution bans in Ventimiglia and Calais.
Escarcena, Juan Pablo; Da Silva, Amanda Carolina ULiege

in Howell, Jayne; Altamirano, Deborah; Totah, Faedah (Eds.) et al Porous Borders, Invisible Boundaries? Ethnographic Perspectives on the Vicissitudes of Contemporary Migration (2018)

During the so-called "refugee crisis” in Europe, the presence of migrant groups in European cities has motivated very different reactions from local authorities and civil society. Taking into ... [more ▼]

During the so-called "refugee crisis” in Europe, the presence of migrant groups in European cities has motivated very different reactions from local authorities and civil society. Taking into consideration two key aspects, the typology of destination cities and reaction of local authorities, we focus on two specific cities—Ventimiglia and Calais—because they are both situated at important points of passage on the borders between states. Also in each case, local authorities have chosen a deterrence approach in the form of a ban on food distribution to deal with immigration issues. We analyze the different ways in which local authorities of Ventimiglia and Calais have implemented bans directed at food distribution programs for migrants and the responses to the bans from local citizens’ solidarity organizations. [less ▲]

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See detailA Antropologia dos restos e o inventário das perdas
Duarte Cândido, Manuelina Maria ULiege

in Mana: Estudos de Antropologia Social (2018), 24(3), 282-285

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See detailThe Contribution of Farmers to Irrigation Management for Agricultural Production in The Red River Delta Vietnam
Nguyen Thi Hai Ninh, ULiege; Lebailly, Philippe ULiege; Nguyen Mau Dung,

in Journal of the Faculty of Agriculture, Suleyman Demirel University (2018), 13(02), 229-239

In the Red River delta Vietnam, farm performance is dependent on the availability of water provided by public irrigation. With a well constructed irrigation system, farmers can increase their income by ... [more ▼]

In the Red River delta Vietnam, farm performance is dependent on the availability of water provided by public irrigation. With a well constructed irrigation system, farmers can increase their income by cultivating three crops per year. Hence participating in irrigation system management is necessary to improve their living. The aims of this paper are to examine the contribution of farmers to irrigation control for sustainable agricultural production. By analyzing primary data which is collected from the survey of 60 farm households, we discovered that irrigation management in this delta consists of several activities such as canals dredging, damaged canals repairing, checking the flow of water in canals and water pumping. In general, farmers contribute to these activities in two ways either in cash or working days. Around 70 percent of farmers contribute money to canal dredging and repairing annually, the rest are poorer so they support by their working days. Our regression model indicates that household income, the contribution of their neighbors, and frequency of attending social events in the community are main factors which statistically significant affect on farmers’ contribution. Therefore, promoting the contribution of farmers to irrigation management is an appropriate policy that needs to be implemented. [less ▲]

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See detailEntanglement robustness against particle loss in multiqubit systems
Neven, Antoine ULiege; Martin, John ULiege; Bastin, Thierry ULiege

in Physical Review. A (2018), 98

When some of the parties of a multipartite entangled pure state are lost, the question arises whether the residual mixed state is also entangled, in which case the initial entangled pure state is said to ... [more ▼]

When some of the parties of a multipartite entangled pure state are lost, the question arises whether the residual mixed state is also entangled, in which case the initial entangled pure state is said to be robust against particle loss. In this paper, we investigate this entanglement robustness for N-qubit pure states. We identify exhaustively all entangled states that are fragile, i.e., not robust, with respect to the loss of any single qubit of the system. We also study the entanglement robustness properties of symmetric states and put these properties in the perspective of the classification of states with respect to stochastic local operations assisted with classic communication (SLOCC classification). [less ▲]

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See detailIndoor thermal comfort in residential building stock: A study of RCC houses in Quetta, Pakistan
Mahar, Waqas Ahmed ULiege; Attia, Shady ULiege

Report (2018)

The report is a part of the PhD project entitled “Methodology for the design of climate responsive houses for optimised thermal comfort in Quetta, Pakistan” being carried out at University of Liège ... [more ▼]

The report is a part of the PhD project entitled “Methodology for the design of climate responsive houses for optimised thermal comfort in Quetta, Pakistan” being carried out at University of Liège, Belgium. The aim of the project is to improve indoor thermal comfort of free-running houses in Quetta and raise the awareness of builders about climate sensitivity. The present findings are based on the monitoring of indoor climate, survey questionnaire and the interviews of the residents living in the houses made of reinforced cement concrete (RCC) structure. We aim to provide the readers with insights and perspectives on the existing houses, their comfort performance, comfort perception and understanding of the residents and the use of mechanical methods to optimise thermal comfort in RCC houses in Quetta, Pakistan. [less ▲]

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See detailLes données personnelles : Mythes et réalités
De Cooman, Jérôme ULiege; Petit, Nicolas ULiege

Report (2018)

De grandes idées tournent autour du phénomène des données massives (Big Data). Dans cet article, nous analysons trois éléments potentiellement fallacieux : les données sont le nouvel or noir (1), les ... [more ▼]

De grandes idées tournent autour du phénomène des données massives (Big Data). Dans cet article, nous analysons trois éléments potentiellement fallacieux : les données sont le nouvel or noir (1), les données ayant une valeur marchande, les individus devraient pouvoir les vendre (2) et les réglementations protégeant les données personnelles (RGDP) favorisent les monopoles (3). [less ▲]

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See detailLa péninsule coréenne: un enjeu international permanent?
Santander, Sébastian ULiege

Conference given outside the academic context (2018)

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See detailClassification of load forecasting studies by forecasting problem to select load forecasting techniques and methodologies
Dumas, Jonathan ULiege; Cornélusse, Bertrand ULiege

E-print/Working paper (2018)

This article proposes a two-dimensional classification methodology to select the relevant forecasting tools developed by the scientific community based on a classification of load forecasting studies. The ... [more ▼]

This article proposes a two-dimensional classification methodology to select the relevant forecasting tools developed by the scientific community based on a classification of load forecasting studies. The inputs of the classifier are the articles of the literature and the outputs are articles classified into categories. The classification process relies on two couple of parameters that defines a forecasting problem. The temporal couple is the forecasting horizon and the forecasting resolution. The system couple is the system size and the load resolution. Each article is classified with key information about the dataset used and the forecasting tools implemented: the forecasting techniques (probabilistic or deterministic) and methodologies, the cleansing data techniques and the error metrics. This process is illustrated by reviewing and classifying thirty-four articles. [less ▲]

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See detailChronic cough in Pediatrics: Algorithms
KEMPENEERS, Céline ULiege

Speech/Talk (2018)

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See detailThoreau and the Capitalocene
Lombard, David ULiege

in Metacritic Journal for Comparative Studies and Theory (2018), 4(2), 20-34

This essay will serve the double purpose of investigating the esthetic dimensions of Thoreau’s environmental philosophy as depicted in his classic memoir Walden (1854) while examining the philosophical ... [more ▼]

This essay will serve the double purpose of investigating the esthetic dimensions of Thoreau’s environmental philosophy as depicted in his classic memoir Walden (1854) while examining the philosophical and political implications of its tendency to break down the boundaries between the natural and the technological landscape. Although critics have tended to identify Thoreau as deeply rooted in an Emersonian transcendentalist and idealist tradition viewing nature as an organized and holistic “whole”, I will argue that Thoreau’s ecophilosophy seeks to reconcile the idealistic with the empirical pole and highlight the tensions between natural and technological objects and situations. I will start by studying how Thoreau approaches man-made technologies and develops a proto-ecocritical form of the sublime. I will also argue that a reconsideration of Thoreau’s poetics sheds a new light on the goals of environmental (non)fiction and urges us to redefine the concept of the Anthropocene as the Capitalocene. [less ▲]

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See detailDroit économique européen et systèmes de pension : quelles interactions pour quelle influence ?
Detienne, Quentin ULiege

Scientific conference (2018, December 20)

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See detailGestão de museus: o museu do século XXl
Duarte Cândido, Manuelina Maria ULiege

in Vilela, Sheila Elias (Ed.) O Museu e Seus Saberes (2018)

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See detailApontamentos sobre a responsabilidade social dos museus: ecomuseus e museus comunitários
Duarte Cândido, Manuelina Maria ULiege

in Vilela, Sheila Elias (Ed.) O Museu e Seus Saberes (2018)

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See detailAppréhender l'étude du verre du Tempio dei Fabri Navales et de la Schola del Traiano
Dienst, Simon ULiege; Frère, Géraldine ULiege

Conference (2018, December 19)

Since 2014, Géraldine Frère and Simon Dienst have been studying the glass artifacts found respectively in the Tempio dei Fabri Navales and the Schola del Traiano areas. The first excavation, conducted ... [more ▼]

Since 2014, Géraldine Frère and Simon Dienst have been studying the glass artifacts found respectively in the Tempio dei Fabri Navales and the Schola del Traiano areas. The first excavation, conducted by Cl. De Ruyt and the University of Namur, took place between 1992 and 2005. Since then, the study of archaeological material has been in progress. The second excavation campaign was led by Cl. Krause and L. Chrzanovski with a Genevan team between 1997 and 1998, then by J.-M. Moret and Th. Morard at the University of Lyon 2 between 2002 and 2010, while the post-excavation work is the responsibility of the University of Liège. These glass studies are supported by the Research Unit “Art, Archéologie et Patrimoine” of the University of Liege. Although different, both methods are based on the mixed use of quantification and typology as well as the observation of the archaeological context. However, different finalities brought minor methodological differences. Geraldine Frere’s study is focused on the technical study, archaeometric and conservation-restauration data, while Simon Dienst’s examines the relations between glassware and pottery. The main aim of this communication is to introduce our methodologies with a chronological presentation of the glass from both excavations. Indeed, these studies show a complementary range of dating between the Late Republican period and Late Antiquity. Furthermore, they bring a lot of economical, technological and cultural information about the evolution of glass, while considering the particularities linked to the antique city of Ostia. Finally, these studies contribute to the publication of archaeological glasses in stratigraphical context. Unlike ceramics, glass from archaeological excavations is rarely published or in brief terms (except for tombs), although it has been gradually gaining interest in recent decades. [less ▲]

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See detailEnhancement of skin penetration of lipid-based nanocarriers
Bellefroid, Coralie ULiege; Lechanteur, Anna ULiege; Evrard, Brigitte ULiege et al

Scientific conference (2018, December 19)

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See detailSelf-testing in infectiology: is it the future?
Hayette, Marie-Pierre ULiege

Conference (2018, December 19)

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