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See detailLake Hazar: a potential high-resolution 150 ka record of climate and tectonic interactions in Anatolia.
Boes, Xavier; Garcia, D; Avsar, U et al

in EOS : Transactions, American Geophysical Union (2008, December), 89(53)(Fall Meet. Suppl.), 21-1942

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See detailLake Kivu Research: Conclusions and Perspectives
Descy, Jean-Pierre; Darchambeau, François ULg; Schmid, Martin

in Descy, Jean-Pierre; Darchambeau, François; Schmid, Martin (Eds.) Lake Kivu, Limnology and Biogeochemistry of a Tropical Great Lake (2012)

In this chapter the knowledge gained from the interdisciplinary research on Lake Kivu presented in the previous chapters is synthesized. The importance of the sublacustrine springs as a driving force for ... [more ▼]

In this chapter the knowledge gained from the interdisciplinary research on Lake Kivu presented in the previous chapters is synthesized. The importance of the sublacustrine springs as a driving force for physical and biogeochemical processes is highlighted, the special properties of the lake’s food web structure are discussed, and the consequences and impacts of both the introduction of a new fish species and methane extraction are evaluated. Finally, a list of open research questions illustrates that Lake Kivu has by far not yet revealed all of its secrets. [less ▲]

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See detailLake Kivu, Limnology and Biogeochemistry of a Tropical Great Lake
Descy, Jean-Pierre; Darchambeau, François ULg; Schmid, Martin

Book published by Springer (2012)

In the heart of Africa, a unique lake has attracted the attention of scientists since the beginning of the 20th century. At the foot of the Virunga volcano chain, Lake Kivu harbors a vast amount of ... [more ▼]

In the heart of Africa, a unique lake has attracted the attention of scientists since the beginning of the 20th century. At the foot of the Virunga volcano chain, Lake Kivu harbors a vast amount of dissolved carbon dioxide and methane, making it the most dangerous lake on Earth. But the lake also furnishes many goods and services for surrounding populations and may soon become the most important energy supplier in the area. At the beginning of gas exploitation, the time has come to gather the wealth of scientific information acquired during past and present research on Lake Kivu. The eleven chapters cover many aspects of the physics, geochemistry and biology of the lake, with a particular focus on the unique physical and geochemical features of the water column and on the ecological functioning of the surface waters. The impacts of the introduced fish species and the potential impacts of methane exploitation are also summarized. This multi-disciplinary book may also be used as an introduction to the limnology and biogeochemistry of large tropical lakes, as it covers various aspects of the physics, geochemistry, biology and ecology of the African Great Rift lakes. [less ▲]

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See detailLake Kivu: food web structure and energy flows
Descy, J-P; Sarmento, H; Isumbisho, P et al

Conference (2013, August 04)

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See detailLake Kivu: Past and Present
Descy, Jean-Pierre; Darchambeau, François ULg; Schmid, Martin

in Descy, Jean-Pierre; Darchambeau, François; Schmid, Martin (Eds.) Lake Kivu, Limnology and Biogeochemistry of a Tropical Great Lake (2012)

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See detailLakeMIP Kivu: evaluating the representation of a large, deep tropical lake by a set of one-dimensional lake models
Thiery, Wim; Stepanenko, Victor M.; Fang, Xing et al

in Tellus : Series A (2014), 66

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See detail*/'lakt‑e/ s.amb. « liquide blanchâtre (opaque, légèrement sucré) sécrété par les glandes mammaires »
Delorme, Jérémie ULg

in Buchi, Eva; Schweickard, Wolfgang (Eds.) Dictionnaire Étymologique Roman (DÉRom) (2011)

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See detailLalande on Africa: science policies in late eighteenth-century France and the growing interest for the exploration of the continent's inner regions
Vandersmissen, Jan ULg

Conference (2013, July 27)

In his Mémoire sur l’intérieur de l’Afrique (An III de la République, 1794-95) the influential French scholar Joseph Jérôme Lefrançois de Lalande (1732-1807) outlines the goals of a project which directly ... [more ▼]

In his Mémoire sur l’intérieur de l’Afrique (An III de la République, 1794-95) the influential French scholar Joseph Jérôme Lefrançois de Lalande (1732-1807) outlines the goals of a project which directly links scientific exploration to the needs of the State, urging both men of learning and state officials to work closely together in the organization of research missions that enhance man’s knowledge of the geography, natural history and commerce of Africa’s yet unknown inner regions – in particular the vast area between Senegal and the Sudan. This paper analyzes Lalande’s aims, arguments and claims against the background of scientific, commercial, political and military tensions between France and Britain. It situates Lalande’s discourse within the broader context of the competing “science policies” of both states in the second half of the eighteenth century. The notion of “science policy” as a working hypothesis refers to the way a government applies the knowledge and expertise provided by the scientific world according to the needs of the country. It is an investigation of the sudden re-emergence of Africa as an object of knowledge in the relationship between power and science. The paper focuses on the continuous interaction between France and Britain in African affairs, and highlights the shift from a mere “enlightened” exploration from the 1720s to the 1780s – a period which saw, on the one hand, the progressive integration of useful knowledge gathered by explorers in African coastal regions into the French “colonial” system, and, on the other hand, the installation of an informal structure of knowledge transfer at the British side – towards Lalande’s revolutionary time – the 1790s – when Africa became the subject of a “Banksian” takeover, enhancing British interest in the “unknown” interior of the African continent by setting up large-scale, interrelated research missions with practical goals (the expeditions organized by the African Association, e.g. Mungo Park), but also provoking reactions from the French side, a reflection of which can be found in Lalande’s dissertation, thus stimulating a new wave of French initiatives in the field. [less ▲]

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See detail"Lam baqā yu‘āriḍkum": analyse linguistique de trois lettres écrites par un marchand au Caire en 819/1416-820/1417
Bauden, Frédéric ULg

in den Heijer, Johannes; La Spisa, Paolo; Tuerlinckx, Laurence (Eds.) Autour de la langue arabe. Études présentées à Jacques Grand'Henry à l’occasion de son 70e anniversaire (2012)

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See detaillambda Boo stars among the gamma Dor-type pulsators: the cases of HD 218427 and HD 239276
Rodríguez, E.; Suárez, J. C.; Moya, A. et al

in Communications in Asteroseismology (2007), 150

Not Available

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See detailLambdoid synostosis - pachycephaly: diagnosis and treatment
Misson, Jean-Paul ULg; Born, Jacques; Collignon, L. et al

in Developmental Medicine and Child Neurology. Supplement (1995), 37(3), 87

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See detailLambert Lombard, pictor et inventor
Allart, Dominique ULg

Conference given outside the academic context (2010)

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See detailLambotte, Lucien
Pirenne, Christophe ULg

in Nouvelle Biographie Nationale (2003)

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See detailLaminar difference in GABA uptake and GAT-1 expression in rat CA1
Engel, Dominique ULg; Schmitz, D; Gloveli, T et al

in Journal of Physiology (1998), 512(Pt3), 643-649

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See detailLaminar flow in radial flow cell with small aspect ratios: Numerical and experimental study
Detry, Jean; Deroanne, Claude ULg; Sindic, Marianne ULg et al

in Chemical Engineering Science (2009), 64(1), 31-42

Studies on the effect of wall shear stress on soil and biofilm attachment and removal from a surface are one of the many applications of radial axisymmetrical flow. The particular nature of this flow ... [more ▼]

Studies on the effect of wall shear stress on soil and biofilm attachment and removal from a surface are one of the many applications of radial axisymmetrical flow. The particular nature of this flow allows taking advantage of a wide range of wall shear Stress applied at the analyzed surface in a single experiment. This type of experiments provides a critical radius up to which soil removal occurs. Good models are, however, still needed to convert the experimental data into critical wall shear stress. Analytical models are already available for creeping flow but Computational Fluid Dynamics must be applied for experiments performed at higher Reynolds numbers. The present study is a numerical analysis of the radial axisymmetrical flow for aspect ratios of 0.125, 0.25, 0.5 and 1 with inlet pipe Reynolds numbers varying from 0 to 2000, aiming at computing the wall shear stress distribution at any distance from the center. The simulations provided a thorough description of the complex flow pattern encountered close to the inlet section, which were validated for the laminar regime by dye injection. A total of up to four recirculation zones were identified in both numerical and experimental investigations. The experimental positions of these recirculation zones corresponded well to the numerical predictions. Based on this work, a map of the flow for the different aspect ratios was developed, which can be particularly interesting for the design of experimental devices involving axisymmetrical flow. (c) 2008 Elsevier Ltd. All rights reserved. [less ▲]

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See detailLaminarin in the dietary fibre concept
Deville, Christelle ULg; Damas, Jacques ULg; Forget, Pierre et al

in Journal of the Science of Food and Agriculture (2004), 84(9), 1030-1038

Dietary fibres consist of edible plant polysaccharides that are resistant to digestion and absorption in the human small intestine but undergo complete or partial fermentation in the colon. Seaweeds ... [more ▼]

Dietary fibres consist of edible plant polysaccharides that are resistant to digestion and absorption in the human small intestine but undergo complete or partial fermentation in the colon. Seaweeds, notably Laminaria spp, are particularly rich in polysaccharides resistant to hydrolysis in the upper gastrointestinal tract and are, in consequence, considered as dietary fibres. Most of the carbohydrates from Laminaria spp are thought to be indigestible by humans. The main storage polysaccharide of these algae is laminarin, a beta-polymer of glucose. The aims of this work were, on the one hand, to compare various methods of extraction of laminarin by partial characterisation of the product obtained and, on the other hand, to study the fate of this polysaccharide and its effects in the gastrointestinal tract in order to determine its potential as a dietary fibre in human nutrition. Among four methods tested to extract laminarin, the best appeared to be a hot HCl-based method. Human digestive enzymes did not hydrolyse laminarin, so this polysaccharide can be considered as a dietary fibre. After ingestion by rats, this polysaccharide was not found in faeces of these animals. It did not increase the intestinal transit and stool output in vivo, but it increased the contractile response of the stomach to acetylcholine in vitro. (C) 2004 Society of Chemical Industry. [less ▲]

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See detailLaminin and 67 Kd Laminin Binding Protein in Mouse B16 Melanoma Cells and 3t3 Fibroblast Spheroids
Siwek, B. L.; Munaut, Carine ULg; Bonjean, K. A. et al

in Anticancer Research (1992), 12(6B, Nov-Dec), 2011-6

Multicellular spheroids which promote cell-cell and cell-matrix interactions were prepared in culture with mouse B16 melanoma cells (pigmented or non pigmented) alone or mixed with mouse 3T3 fibroblasts ... [more ▼]

Multicellular spheroids which promote cell-cell and cell-matrix interactions were prepared in culture with mouse B16 melanoma cells (pigmented or non pigmented) alone or mixed with mouse 3T3 fibroblasts. Their volume and proliferation or necrosis rate were evaluated. As measured by dot blot immunoassay, laminin was mainly produced by fibroblasts rather than by melanoma cells. High levels of laminin B1 chain mRNA were detected only in spheroids composed of 3T3 fibroblasts. The levels of 67 kD laminin binding protein mRNA were high in all cell populations studied here. [less ▲]

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See detailLaminin and fibronectin increase the steady state level of the 67 kD high affinity metastasis-associated laminin receptor mRNA in human cancer cells.
Castronovo, Vincenzo ULg; Sobel, M. E.

in Biochemical and Biophysical Research Communications (1990), 168(3), 1110-7

Among the various known laminin binding proteins, the 67 kD high affinity laminin receptor (LR) is intimately involved during tumor invasion and metastasis. In this study, we report that laminin and ... [more ▼]

Among the various known laminin binding proteins, the 67 kD high affinity laminin receptor (LR) is intimately involved during tumor invasion and metastasis. In this study, we report that laminin and fibronectin, two attachment glycoproteins, significantly increased the total cellular level of 67 kD LR mRNA in two human cancer cell lines, T47D breast carcinoma cells and A2058 melanoma cells. Neither GRGDS nor YIGSR synthetic peptides induced such a stimulatory effect. Since the steady state level of LR mRNA has been shown to control the number of receptors expressed at the cell surface, these results suggest that contact of the cancer cells with laminin and fibronectin in the host matrix may be an important regulatory mechanism by which cancer cells maintain a high number of LR at their cell surface as they progress through the several steps of tumoral invasion and metastasis. [less ▲]

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