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See detailGenus Clostridium - Clostridia in medical, veterinary and food microbiology : Diagnosis and typing
Mainil, Jacques ULg

Book published by European Commission (2006)

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See detailGenus Clostridium and diseases
Mainil, Jacques ULg

Conference (2003)

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See detailGenus Floridum: Translating Under the Volcano
Pagnoulle, Christine ULg

in Grace, Sherrill (Ed.) Swinging the Maelstrom. New Perspectives on Malcolm Lowry (1992)

This paper relies on contributions by translators of Lowry's major novel. The translating difficulties experienced in the four languages represented (Spanish, Italian, German and French) shed a ... [more ▼]

This paper relies on contributions by translators of Lowry's major novel. The translating difficulties experienced in the four languages represented (Spanish, Italian, German and French) shed a contrasting light on the original work. [less ▲]

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See detailThe genus Iowatrypa Copper, 1973 (Brachiopoda) in the Les Valisettes Formation (late Frasnian of the Philippeville Anticlinorium, southern Belgium)
Mottequin, Bernard ULg

in Bulletin de l'Institut Royal des Sciences Naturelles de Belgique. Sciences de la Terre (2004), 74

A new species of the genus Iowatrypa Copper, 1973 [I. philippevillensis n. sp. (Pseudogruenewaldtiinae)] is described from the late Frasnian (Upper Palmatolepis rhenana Zone) Les Valisettes Formation ... [more ▼]

A new species of the genus Iowatrypa Copper, 1973 [I. philippevillensis n. sp. (Pseudogruenewaldtiinae)] is described from the late Frasnian (Upper Palmatolepis rhenana Zone) Les Valisettes Formation (Philippeville Anticlinorium). [less ▲]

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See detailGeo-electrical data fusion by stochastic co-conditioning simulations for delineating groundwater protection zones
Dassargues, Alain ULg

in CMWR XVI - Computational Methods in Water Resources (2006)

In hydrogeology, advances in the delimitation of protection zones are made by the use of stochastic simulations integrating all available data. In practice, due to the few available measurements of the ... [more ▼]

In hydrogeology, advances in the delimitation of protection zones are made by the use of stochastic simulations integrating all available data. In practice, due to the few available measurements of the main parameters (hard data), it is very useful to integrate several secondary properties of the media as indirect data (soft data) to reduce the uncertainty of the results. In aquifers, most of the solute spreading is governed by the hydraulic conductivity (K) spatial variability, which is generally considered as the main uncertain parameter. A stochastic approach integrating hydraulic conductivity measurements (hard data), head observations and shallow electrical resistivity tomography (soft data) is presented. Results are discussed on a synthetic and on a practical case. It is shown in practice how the uncertainty of the well capture zone probability distribution (CaPD) can be reduced. Since geophysical data and head observations are easier to collect on the field then hydraulic conductivity measurements, they are generally more abundant. The methodology presented can even be used in real applications when little or no information is available about the hydraulic properties, through the conditioning on geophysical data and/or head observations. [less ▲]

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See detailGeo-referenced forest information for Belgium
Rondeux, Jacques ULg

Book published by Faculté des Sciences Agronomiques (1994)

In Belgium, forests cover about 670.000 hectares. The corresponding data are issued from various sources: non-forest thematic maps, total tallies, sample surveys and remote sensing. At the national level ... [more ▼]

In Belgium, forests cover about 670.000 hectares. The corresponding data are issued from various sources: non-forest thematic maps, total tallies, sample surveys and remote sensing. At the national level the official information is given by decennial national forest statistics but because of its lack of uniformity and quality other approaches are necessary. The Flemish region (northern par of Belgium with 20 % of the forest) is using remote sensing to assess the global forest situation while the Walloon region (southern part of Belgium with 80 % of the forest) is using a permanent field forest inventory based on a sampling frame (1 plot for every 50 hectares located in forest conditions). GIS are on the way to bringing together pertinent geo-referenced data on vegetation, soil growing stock and environmental conditions. This report outlines the procedures used to obtain basic information on the location and extend of the forest resource. [less ▲]

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See detailGeo-referenced Forest Information for Belgium
Rondeux, Jacques ULg

in Kennedy, P. J.; Päivinen, R.; Roihuvuo, L. (Eds.) International Workshop : Designing a System of Nomenclature for European Forest Mapping. Proceedings (1994)

In Belgium, forests cover about 670.000 hectares. The corresponding data are issued from various sources : non-forest thematic maps, total tallies, sample surveys and remote sensing. At the national level ... [more ▼]

In Belgium, forests cover about 670.000 hectares. The corresponding data are issued from various sources : non-forest thematic maps, total tallies, sample surveys and remote sensing. At the national level the official information is given by decennial national forest statistics but because of its lack of uniformity and quality other approaches are necessary. The Flemish region (nothern part of Belgium with 20 % of the forest) is using remote sensing to assess the global forest situation while the Walloon region (southern part of Belgium with 80 % of the forest) is using a permanent field forest inventory based on a sampling frame (1 plot for every 50 hectares located in forest conditions). GIS are on the way to bringing together pertinent geo-referenced data on vegetation, soil, growing stock and environmental conditions. This report outlines the procedures used to obtain basic information on the location and extend of the forest resource. [less ▲]

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See detailGeoarcheological aspects of new excavations at the Palaeolithic site of Kulbulak (Uzbekistan)
Flas, Damien ULg; Kolobova, K.; Pavlenok, K. et al

Poster (2012)

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See detailGeochemical and Pb isotopic investigations in peat bogs from Southern Chile: Identification of particles supplies and possible paleoclimate record
De Vleeschouwer, François ULg; Ibanez, M.; Mattielli, N. et al

in Geochimica et Cosmochimica Acta (2004), 68(11), 478-478

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See detailGeochemical and Pb isotopic investigations in peat bogs from Southern Chile: Identification of particles supplies and possible paleoclimate record
De Vleeschouwer, F.; Ibanez, M.; Mattielli, N. et al

in Geochimica et Cosmochimica Acta (2004), 68(11), 478-478

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See detailGeochemical and Pb isotopic investigations in peat bogs from Southern Chile: Identification of particles supplies and possible paleoclimate record
De Vleeschouwer, F.; Ibanez, M.; Mattielli, N. et al

in Geochimica et Cosmochimica Acta (2004), 68(11), 478-478

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See detailGeochemical and Pb isotopic signature of peaty sediments from central-south Chile: Identification of particle supplies over the Holocene
De Vleeschouwer, François ULg; Ibanez, Maud; Mattielli, Nadine et al

in Journal of the Chilean Chemical Society [=JCCS] (2008), 53(3), 1640-1649

Two cores from tephra rich peat soils of the Chilean Lake District were investigated for mineral source and potential anthropogenic impact using elemental geochemistry, including rare earth elements, and ... [more ▼]

Two cores from tephra rich peat soils of the Chilean Lake District were investigated for mineral source and potential anthropogenic impact using elemental geochemistry, including rare earth elements, and lead isotopes. The dominant particle source to the area are the Trumaos which are the local ando soils derived from the weathering of volcanic deposits. In Galletue, although short term events of enhanced particle inputs occur, elemental and isotopic signatures show that the Trumaos are the only particle source to the area. In San Pablo de Tregua, punctual events of crustal particle inputs are recorded in Pb enrichment factors and isotopic profiles, reflecting a long range crustal involvement. This site also records the inception of the anthropogenic in the area in recent samples of which Pb enrichment factors and lead isotopic signatures shift drastically. [less ▲]

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See detailA geochemical and petrological study of the Late Cretaceous banatites from the Apuseni Mountains, Romania
Vander Auwera, Jacqueline ULg; Berza, Tudor; Dupont, Alain et al

Poster (2014, April)

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See detailGeochemical composition of sediments in the Scheldt
Bouezmarni, Mohamed ULg; Wollast, Roland

in Hydrobiologia (2005), 540(1-3), 155-168

Superficial sediments of the Scheldt estuary were collected with a Van Veen grab at 57 stations between Temse and Vlissingen. They were analysed for major elements (Si, Al, Fe, Ca, Mg, Na, K, Cinorg and ... [more ▼]

Superficial sediments of the Scheldt estuary were collected with a Van Veen grab at 57 stations between Temse and Vlissingen. They were analysed for major elements (Si, Al, Fe, Ca, Mg, Na, K, Cinorg and Corg) and trace metals (Cd, Pb, Cu, Zn, Cr, Ni, Co, Mn and Li). Factor analysis indicates that 44% of the variance can be explained by one factor which exhibits a high saturation for trace metals, organic matter, Al and Fe, all variables typical of fine mud. The high scores of this first factor are almost exclusively present in the upper estuary except for one area in front of Terneuzen. The second factor, which explains 23% of the variance, is typical of the carbonates and the third one (19% of the variance) is representative of the clay minerals. These two factors are more evenly distributed over the estuary. As usual, a strong influence of granulometry on the distribution of trace elements in the sediments was observed. Intercomparison of their composition within the Scheldt or with those of other aquatic systems requires thus a normalization procedure. This problem has been studied in detail by analysing various size fractions (63–16, 16–8, 8–4, <4 m) obtained by elutriation of the sample or by using a parameter characteristic of the fine fraction such as the concentration of a typical element (Al, Fe, Li, Corg). The normalization of trace metals allowed us to evaluate an enrichment factor of the trace elements in the estuarine deposits due to mans activities. In addition, it demonstrates the decrease of the anthropogenic impact on the composition of sediments by comparing the composition of sediments collected in 1976 and in 1994. [less ▲]

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See detailGeochemical constraints on the genesis of the Tellnes Ilmenite deposit, southwest Norway
Wilmart, Edith; Demaiffe, Daniel; Duchesne, Jean-Clair ULg

in Economic Geology & the Bulletin of the Society of Economic Geologists (1989), 84

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See detailGeochemical constraints on the petrogenesis of the O'okiep intrusive rocks (Namaqualand, S. Africa) : a lower crustal mafic source
Duchesne, Jean Clair; Vander Auwera, Jacqueline ULg; Clifford, Tom

in Journal of Conference Abstracts (2001), 6

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See detailGeochemical evidence (C, N and Pb isotopes) of recent anthropogenic impact in south-central Chile from two environmentally distinct lake sediment records
Fagel, Nathalie ULg; Bertrand, Sebastien; Mattielli, Nadine et al

in Journal of Quaternary Science (2010), 25(7), 1100-1112

In this paper, we compare the elemental and isotopic (C, N, Pb) geochemistry of lake sediments from two contrasted environments in south-central Chile. The first lake, Laguna Chica de San Pedro (LCSP), is ... [more ▼]

In this paper, we compare the elemental and isotopic (C, N, Pb) geochemistry of lake sediments from two contrasted environments in south-central Chile. The first lake, Laguna Chica de San Pedro (LCSP), is situated in the urbanised area of the Biobio Region (36°S). The second lake, Lago Puyehue (40° S), is located 400 km to the southeast of LCSP and within an Andean national park. Our aim is to identify environmental impacts associated with increasing industrial activities and land degradation during the last 150 a. In LCSP, shifts in C/N atomic ratios, 13C and 15N from 1915-1937 to the late 1980s are attributed to successive land degradation episodes in the lake watershed. Based on a Pb isotopic mixing model, we estimate that up to 20% of lead in LCSP sediments is supplied from urban atmospheric pollution. By contrast, human impact in the watershed of Lago Puyehue is very limited. We observe no change in organic geochemistry during the last 150 a and lead contamination remains lower than 5%, even during the last decades. Although contamination levels are much higher in LCSP than in Lago Puyehue, a peak in anthropogenic Pb is recorded during the same period (1974-1976) at both sites. This maximum contamination level is consistent with increased industrial activity in the vicinity of Concepción. [less ▲]

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