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See detailLINKING CATTLE GRAZING BEHAVIOR TO METHANE AND CARBON DIOXIDE DYNAMICS
Blaise, Yannick ULiege; Lebeau, Frédéric ULiege; Andriamandroso, Andriamasinoro ULiege et al

in Communications in Agricultural and Applied Biological Sciences (2016, February), 81(1), 107-112

Various methods are presently used to measure methane (CH4) emissions of ruminants on pasture. Those measurements are essential to evaluate nutritional strategies to mitigate enteric CH4 emissions as well ... [more ▼]

Various methods are presently used to measure methane (CH4) emissions of ruminants on pasture. Those measurements are essential to evaluate nutritional strategies to mitigate enteric CH4 emissions as well as addressing the selection of low producing individuals. On pasture and in the barn, variations in CH4 emissions are observed depending on the time of the day. However, no studies have been made to link these diurnal fluctuations to behavioural phases, especially on pasture. The aim of this study was to understand the individual dynamics of CH4 production and their links to the grazing behaviour. For this purpose, a new tool was specifically developed. Five red-pied dry cows were equipped with infrared CH4 and carbon dioxide (CO2) sensors measuring concentrations in the exhaled air at 4 Hz. The animals were equipped with a heart rate belt (HR) and motion sensors to detect their feeding behaviours (grazing vs. rumination) for periods of 8 h/d. Wind speed (WS) was also monitor to verify interference with sampled gas concentrations. Results showed that using the CH4:CO2 ratio reduced the interference with WS that was observed on raw CH4 and CO2 concentration signals. CH4:CO2 ratio average over 5 min periods indicated that CH4 emissions were lower during grazing than rumination (P<0.01). The eructation frequency during grazing (0.48 eructation/min, P<0.01) was also lower than during rumination (0.65 eructation/min). HR was higher during grazing that rumination. Because HR is usually linked to metabolic CO2 production intensity, hence influencing the denominator of the CH4:CO2 ratio, further investigation should focus on the quantification of changes in fermentative and metabolic CO2 emissions along the day to estimate total CH4 production more accurately and the relationship between CH4 emissions patterns and post-feeding times. [less ▲]

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See detailLinking compaction dynamics to the flow properties of powders
Lumay, Geoffroy ULiege; Vandewalle, Nicolas ULiege; Delattre, Luc ULiege et al

in Applied Physics Letters (2006), 89(9),

The authors have investigated the flow properties of powders by using two classical techniques based on the shear stress measurements and the count of intermittent avalanches, respectively. Results are ... [more ▼]

The authors have investigated the flow properties of powders by using two classical techniques based on the shear stress measurements and the count of intermittent avalanches, respectively. Results are compared with measurements of the compaction dynamics. Strong correlations are evidenced between compaction relaxation parameters and free flow characteristics. Those correlations are given by semiempirical laws based on physical arguments. This work opens perspectives in powder technology and the knowledge on granular matter. (c) 2006 American Institute of Physics. [less ▲]

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See detailLinking concepts in the ecology and evolution of invasive plants: network analysis shows what has been most studied and identifies knowledge gaps
Vanderhoeven, Sonia ULiege; Brown, Cynthia; Tepolt, Carolyn et al

in Evolutionary Applications (2010), 3(2), 193-202

In recent decades, a growing number of studies have addressed connections between ecological and evolutionary concepts in biologic invasions. These connections may be crucial for understanding the ... [more ▼]

In recent decades, a growing number of studies have addressed connections between ecological and evolutionary concepts in biologic invasions. These connections may be crucial for understanding the processes underlying invaders' success. However, the extent to which scientists have worked on the integration of the ecology and evolution of invasive plants is poorly documented, as few attempts have been made to evaluate these efforts in invasion biology research. Such analysis can facilitate recognize well-documented relationships and identify gaps in our knowledge. In this study, we used a network-based method for visualizing the connections between major aspects of ecology and evolution in the primary research literature. Using the family Poaceae as an example, we show that ecological concepts were more studied and better interconnected than were evolutionary concepts. Several possible connections were not documented at all, representing knowledge gaps between ecology and evolution of invaders. Among knowledge gaps, the concepts of plasticity, gene flow, epigenetics and human influence were particularly under-connected. We discuss five possible research avenues to better understand the relationships between ecology and evolution in the success of Poaceae, and of alien plants in general. [less ▲]

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See detailLINKING CONTACT EMPLOYEE EMOTIONAL INTELLIGENCE TO CUSTOMER PERCEPTIONS
Delcourt, Cécile ULiege; Van Riel, Allard ULiege; Birgelen, Marcel

Conference (2009)

Contact employees play a critical role in creating favorable customer perceptions. We aim to understand to which extent contact employee emotional intelligence relates to customer perceptions of rapport ... [more ▼]

Contact employees play a critical role in creating favorable customer perceptions. We aim to understand to which extent contact employee emotional intelligence relates to customer perceptions of rapport, and their satisfaction and behavioral intentions. We developed a causal model and tested it with PLS. We found that customer perceptions of contact employee emotional intelligence influence their perceptions of rapport. In turn, rapport influences cognitive and emotional satisfaction. Both types of satisfaction lead to behavioral intentions. In order to improve customer perceptions of rapport, managers could focus on contact employees’ emotional intelligence when hiring and training them. [less ▲]

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See detailLinking design and production in computer applications for increased efficiency
Caprace, Jean-David ULiege

Conference (2010, September)

Shipbuilding has been severely affected by the global economic crisis. Demand for new ships has collapsed world wide since summer 2008 causing an unprecedented levels of overcapacity in the global cargo ... [more ▼]

Shipbuilding has been severely affected by the global economic crisis. Demand for new ships has collapsed world wide since summer 2008 causing an unprecedented levels of overcapacity in the global cargo ship fleets. The current crisis gives impulses for a radical think to adopt new designs to reduce the life cycle costs and to decrease the environmental impact. Leading shipping companies recognise that low life cycle cost and low emission save costs, open quality sensitive markets and will be the key driver to profitability in the future. The speaker will present some possible techniques to improve the link between design and production in order to boost the competitiveness of worldwide shipyards. Modularizations, ease of manufacturing, standardization, virtual reality, production simulation, product life cycle management, are some of these techniques illustrated in the presentation. The speaker will also draw the trends for the future years. [less ▲]

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See detailLinking errors in trend estimation for international surveys in education
Monseur, Christian ULiege; Sibberns, H.; Hastedt, D.

in IERI (2008), 1

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See detailLinking farmers’ access to rural radio, gender and livelihoods: case study of rice processors in Benin
Zossou, Enangnon ULiege; Vodouhe, Davo Simplice; Van Mele, Paul et al

Conference (2012, May 21)

As most of sub-Saharan Africa countries, Benin has noted a growth of rural radio stations over the past few decades as part of a broader process of democratisation. This paper examines the level of ... [more ▼]

As most of sub-Saharan Africa countries, Benin has noted a growth of rural radio stations over the past few decades as part of a broader process of democratisation. This paper examines the level of farmers’ access to rural radio in relation to gender and livelihood assets. The study was conducted in the north and south of Benin with 18 rural radio stations and 240 rice processors selected at random in 12 villages. We used the Sustainable Livelihoods (SL) framework with 120 rice processors randomly selected among the 240 surveyed rice processors. About 67% of the women rice processors had their own radio set compared to 87% of the men. Although the study did not allow to draw conclusions on causal relationships, rice processors who often listened to agricultural broadcasts had better social, financial and human capital stocks compared to those who didn’t listen to agricultural broadcasts. Despite the applaudable efforts of 72% of the radio stations to link up with extension services, half of the rice processors rarely or never listened to agricultural broadcasts, because the timing of the broadcasts was inappropriate. Interactive radio sessions with farmers that involve government officials will need to address this if they are to become more effective. [less ▲]

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See detailLinking Field Metal-Poor Stars and Globular Clusters: The Ease Scenario
Jehin, Emmanuel ULiege; Magain, Pierre ULiege; Neuforge, Corinne et al

in Spite, M. (Ed.) Galaxy Evolution: Connecting the Distant Universe with the Local Fossil Record (1999)

Detailed reference viewed: 10 (5 ULiège)
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See detailLinking flowability and granulometry of lactose powders
Boschini, Frédéric ULiege; Delaval, Vincent ULiege; Traina, Karl et al

in International Journal of Pharmaceutics (2015)

The flowing properties of 10 lactose powders commonly used in pharmaceutical industries have been analyzed with three recently improved measurement methods. The first method is based on the heap shape ... [more ▼]

The flowing properties of 10 lactose powders commonly used in pharmaceutical industries have been analyzed with three recently improved measurement methods. The first method is based on the heap shape measurement. This straightforward measurement method provides two physical parameters (angle of repose αr and static cohesive index σr) allowing to make a first screening of the powder properties. The second method allows to estimate the rheological properties of a powder by analyzing the powder flow in a rotating drum. This more advanced method gives a large set of physical parameters (flowing angle αf, dynamic cohesive index σf, angle of first avalanche αa and powder aeration %ae) leading to deeper interpretations. The third method is an improvement of the classical bulk and tapped density measurements. In addition to the improvement of the measurement precision, the densification dynamics of the powder bulk submitted to taps is analyzed. The link between the macroscopic physical parameters obtained with these methods and the powder granulometry is analyzed. Moreover, the correlations between the different flowability indexes are discussed. Finally, the link between grain shape and flowability is discussed qualitatively. [less ▲]

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See detailLinking flux network measurements to continental scale simulations: Ecosystem carbon dioxide exchange capacity under non-water-stressed conditions
Owen, Katherine; Tenhunen, John; Reichstein, Markus et al

in Global Change Biology (2007), 13

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See detailLinking Forest Cover to Water Quality: A Multivariate Analysis of Large Monitoring Datasets
Brogna, Delphine; Michez, Adrien ULiege; Jacobs, Sander et al

in Water (2017), 9(3), 176

Forested catchments are generally assumed to provide higher quality water. However, this hypothesis must be validated in various contexts as interactions between multiple land use and land cover (LULC ... [more ▼]

Forested catchments are generally assumed to provide higher quality water. However, this hypothesis must be validated in various contexts as interactions between multiple land use and land cover (LULC) types, ecological variables and water quality variables render this relationship highly complex. This paper applies a straightforward multivariate approach on a typical large monitoring dataset of a highly managed and densely populated area (Wallonia, Belgium; 10-year dataset), quantifying forest cover effects on nine physico-chemical water quality variables. Results show that forest cover explains about one third of the variability of water quality and is positively correlated with higher quality water. When controlling for spatial autocorrelation, forest cover still explains 9% of water quality. Unlike needle-leaved forest cover, broad-leaved forest cover presents an independent effect from ecological variables and explains independently 4.8% of water quality variability while it shares 5.8% with cropland cover. This study demonstrates clear independent effects of forest cover on water quality, and presents a method to tease out independent LULC effects from typical large multivariate monitoring datasets. Further research on explanatory variables, spatial distribution effects and water quality datasets could lead to effective strategies to mitigate pollution and reach legal targets. [less ▲]

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See detailLinking international norms to regions: Mercosur and ASEAN facing the challenge of cultural diversity
Vlassis, Antonios ULiege

in Política & Sociedade (2017), 16(35), 67-93

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See detailLinking landslide susceptibility to sediment yield at regional scale: application to Romania
Broeckx, J.; Vanmaercke, Matthias ULiege; Bălteanu, D. et al

in Geomorphology (2016), 268

It is generally accepted that catchment sediment yield (SY, t km− 2 y− 1) can be strongly influenced by landsliding. Nevertheless, due to data requirements, only few studies investigated this effect at a ... [more ▼]

It is generally accepted that catchment sediment yield (SY, t km− 2 y− 1) can be strongly influenced by landsliding. Nevertheless, due to data requirements, only few studies investigated this effect at a regional scale. The objective of this study is therefore to explore the potential of a landslide susceptibility map for explaining the spatial variation of SY in Romania. We selected 133 catchments in Romania for which SY was measured during a period of at least 10 years. For each catchment, we derived a variety of proxies that potentially explain SY, including several indicators of landslide occurrence. The latter were derived from a published landslide susceptibility map. Results show that SY is significantly correlated with mean landslide susceptibility (r2 = 0.30). Estimates of average sheet and rill erosion rates showed a much weaker correlation with SY (r2 = 0.06). Further analyses showed that the strong correlation between SY and landslide susceptibility is mainly attributed to regional variations in lithology and seismicity. Especially the latter may play a crucial role in understanding denudation rates at regional scales, e.g. by facilitating the occurrence of landslides. Using landslide proxies that also account for sediment connectivity did not result in stronger correlations. Overall, our results show that landslide susceptibility maps can be a highly useful tool to predict SY at regional scales, provided that they incorporate all relevant factors. © 2016 Elsevier B.V. [less ▲]

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See detailLinking local rice processors’ access to rural radio, gender, and livelihoods in Benin
Zossou, Espérance; Vodouhe, Davo Simplice; Van Mele, Paul et al

in Development in Practice (2015), 25(7), 10571066

In a context of low literacy rates and a high level of rurality, the use of rural radio in agricultural extension is a method that can bridge the gap that exists between researchers, extension workers ... [more ▼]

In a context of low literacy rates and a high level of rurality, the use of rural radio in agricultural extension is a method that can bridge the gap that exists between researchers, extension workers, and farmers. This article examines the level of farmers’ access to rural radio in relation to gender and livelihoods. The study was conducted in Benin with 18 rural radio stations and 240 rice processors, using the sustainable livelihoods framework to examine the relationship between access to rural radio and livelihoods. Although the study cannot draw conclusions on causal relationships, rice processors who often listened to agricultural broadcasts had better social, financial, and human capital stocks compared to those who did not. Despite the efforts of 72% of the radio stations to link up with extension services, half of the rice processors rarely or never listened to agricultural broadcasts, because the timing of the broadcasts was inappropriate. Interactive radio sessions with farmers that involve government officials will need to address this if they are to become more effective. [less ▲]

Detailed reference viewed: 26 (4 ULiège)
See detailLinking political discourses on science with an evolving and densely populated context: Exploring the prospects of Cultural Political Economy
Charlier, Nathan ULiege

Conference (2015, June)

As a PhD student, I investigate the multiple ways science is conceived and valued in a research and innovation (R&I) policy context under seismic shifts (Tyfield, 2012): I aim at analyzing and comparing ... [more ▼]

As a PhD student, I investigate the multiple ways science is conceived and valued in a research and innovation (R&I) policy context under seismic shifts (Tyfield, 2012): I aim at analyzing and comparing the various political discourses about R&I in Flanders and Wallonia (the two main regions of Federal Belgium). With regards to that goal, I am currently in the process of analyzing a corpus of 33 semi-structured interviews with principal investigators of two University biotech research centers, with members of two University research management boards, and with representatives of two regional science policy advisory boards. In order to analyze this particular set of discourses, I build on various sensitizing concepts (van den Hoonard 1997) such as policy narratives (Radaelli, 2000), while following the tenets of Grounded Theory (Glaser & Strauss, 1967). However, it is, I believe, necessary to connect the specific discourses I am studying to a broader context made of institutions, of actors engaged in power relationships, of policies and policy reforms, of a specific history, of other discourses, etc. The way one build ties between a particular set of data and broader contextual aspects is key to a fruitful sociological analysis. My proposal is to explore the potentialities offered by Cultural Political Economy (Sum & Jessop, 2013), an approach concerned with “the relation between semiosis and structuration in political economy” (Sum & Jessop, 2013: X), when trying to link discourses on R&I to the context they are part of. Acknowledging the “interdependence and co-evolution of the semiotic and extra-semiotic” (ibid., 23), CPE offers heuristic tools to study the articulation of specific discourses “with technologies and agency” (ibid., 20). My communication will disclose the iterative process of discourse analysis relying on CPE, as well as its results. [less ▲]

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See detailLinking pollutant exposure of humpback whales breeding in the Indian Ocean to their feeding habits and feeding areas off Antarctica
Das, Krishna ULiege; Malarvannan, Govindan; Dirtu, Alin et al

in Environmental Pollution (2017), 220

Humpback whales, Megaptera novaeangliae, breeding off la Reunion Island (Indian Ocean) undergo large-scale seasonal migrations between summer feeding grounds near Antarctica and their reproductive winter ... [more ▼]

Humpback whales, Megaptera novaeangliae, breeding off la Reunion Island (Indian Ocean) undergo large-scale seasonal migrations between summer feeding grounds near Antarctica and their reproductive winter grounds in the Indian Ocean. The main scope of the current study was to investigate chemical exposure of humpback whales breeding in the Indian Ocean by providing the first published data on this breeding stock concerning persistent organic pollutants (POPs), namely polychlorinated biphenyls (PCBs), hexachlorobenzene (HCB), hexachlorocyclohexanes (HCHs), DDT and its metabolites (DDTs), chlordane compounds (CHLs), polybrominated diphenyl ethers (PBDEs), and methoxylated PBDEs (MeO-PBDEs). Analyses of stable isotopes δ13C and δ15N in skin resulted in further insight in their feeding ecology, which was in agreement with a diet focused mainly on low trophic level prey species, such as krill from Antarctica. POPs were measured in all humpback whales in the order of HCB > DDTs > CHLs > HCHs > PCBs > PBDEs > MeO-BDEs. HCB (median: 24 ng.g-1 lw) and DDTs (median: 7.7 ng.g-1 lw) were the predominant compounds in all whale biopsies. Among DDT compounds, p,p’-DDE was the major organohalogenated pollutant, reflecting its long-term accumulation in humpback whales. Significantly lower concentrations of HCB and DDTs were found in females than in males (p<0.001). Other compounds were similar between the two genders (p>0.05). Differences in the HCB and DDTs suggested gender-specific transfer of some compounds to the offspring. POP concentrations were lower than previously reported results for humpback whales sampled near the Antarctic Peninsula, suggesting potential influence of their nutritional status and may indicate different exposures of the whales according to their feeding zones. Further investigations are required to assess exposure of southern humpback whales throughout their feeding zones. [less ▲]

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See detailLinking programmes and systems: lessons from the GAVI Health Systems Strengthening window.
Galichet, B.; Goeman, L.; Hill, P. S. et al

in Tropical medicine & international health : TM & IH (2010), 15(2), 208-15

OBJECTIVES: To analyse the first four rounds of country applications to the GAVI Alliance Health Systems Strengthening (GAVI-HSS) funding window; to provide valuable insight into how countries prioritize ... [more ▼]

OBJECTIVES: To analyse the first four rounds of country applications to the GAVI Alliance Health Systems Strengthening (GAVI-HSS) funding window; to provide valuable insight into how countries prioritize, articulate and propose solutions for health system constraints through the GAVI-HSS application process and to examine the extent to which this process embodies alignment and harmonization, Principles of the Paris Declaration. METHODS: The study applied multiple criteria to analyse 48 funding applications from 40 countries, submitted in the first four rounds, focusing on the country analysis of health systems constraints, coordination mechanisms, alignment with national and sector planning processes, inclusiveness of the planning processes and stakeholder engagement. RESULTS: The applications showed diversity in the health systems constraints identified and the activities proposed. Requirements of GAVI for sector oversight and coordination, and the management of the application process through the Ministry of Health's Planning Department, resulted in strong alignment with government policy and planning processes and good levels of stakeholder inclusion and local technical support (TS). CONCLUSION: Health Systems Strengthening initiatives for global health partnerships (GHPs) can provide a link between the programmatic and the systemic, influencing policy alignment and harmonization of processes. The applications strengthened in-country coordination and planning, with countries using existing health sector assessments to identify system constraints, and to propose. Analyses also produced evidence of broad stakeholder inclusiveness, a good degree of proposal alignment with national health plans and policy documents, and engagement of a largely domestic TS network. While the effectiveness of the proposed interventions cannot be determined from this data, the findings provide support for the GAVI-HSS initiative as implementation continues and evaluation begins. [less ▲]

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See detailLinking sleep and general anesthesia mechanisms: this is no walkover
BONHOMME, Vincent ULiege; BOVEROUX, Pierre ULiege; Vanhaudenhuyse, Audrey ULiege et al

in Acta Anaesthesiologica Belgica (2011), 62(3), 161-171

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See detailLinking small pelagic dietary shifts with ecosystem changes in the Gulf of Lions
Brosset, Pablo; Le Bourg, Baptiste ULiege; Costalago, David et al

in Marine Ecology. Progress Series (2016), 554

Since 2008, a severe decrease in size and body condition together with a demographic truncation has been observed in the sardine (secondarily in anchovy) population of the Gulf of Lions (NW Mediterranean ... [more ▼]

Since 2008, a severe decrease in size and body condition together with a demographic truncation has been observed in the sardine (secondarily in anchovy) population of the Gulf of Lions (NW Mediterranean Sea). In parallel, sprat biomass, which was negligible before, has increased tenfold. All of these changes have strongly affected the regional fisheries. Using trophic and isotopic data from contrasting periods of low versus high growth and condition, we investigated potential changes in diet and interspecific feeding interactions through time. Evidence of resource partitioning was found between sprat and both anchovy and sardine in 2004 and 2005. Since 2010, the isotopic niches of the 3 species have tended to overlap, suggesting higher risk of competition for food resources. Moreover, the wider trophic niche of sprat indicates higher variability in individual diets. Anchovy and sardine diet varied through time, with a high proportion of large copepods or cladocerans in periods of high growth and condition (1994 and 2007, respectively) versus a dominance of small copepods in the present (2011−2012). Further-more, an important reduction in prey diversity was also identified in the diet of both anchovy and sardine during the most recent period. Our results support the hypothesis that changes in small pelagic fish growth, size and body condition and ultimately biomass could be due to bottom-up control characterized by changes in food availability and increasing potential trophic competition. [less ▲]

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