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See detailStratégie pour l’analyse qualitative et quantitative de sirops de céréales enrichis par voie enzymatique en isomaltooligosaccharides
Goffin, Dorothée ULg

Master of advanced studies dissertation (2007)

Les Isomaltooligosaccharides (IMO) sont constitués de monomères de glucose liés par au moins une liaison α-1-6 (IMO classique), ou dans une moindre proportion α -1-3 (famille nigero-) ou α -1-2 (famille ... [more ▼]

Les Isomaltooligosaccharides (IMO) sont constitués de monomères de glucose liés par au moins une liaison α-1-6 (IMO classique), ou dans une moindre proportion α -1-3 (famille nigero-) ou α -1-2 (famille koji-). Ils sont produits par voie enzymatique à partir d’amidon de céréales hydrolysé. Un mélange très complexe est obtenu avec des molécules caractérisées à la fois par leur valeur de DP (de 2 à ~15), le type de liaisons en présence ainsi que la proportion et la position de chaque type de liaison (seules α -1-6 ou en combinaison). Le défi de cette étude est de trouver une méthode qualitative et quantitative pour caractériser ces sirops. Trois différentes méthodes ont été testées à l’aide de trois différents types de détecteur et comparées selon des critères de sélectivité, sensibilité, robustesse, applicabilité et de la faisabilité de l’analyse quantitative L’HPLC-RID (Refractive Index Detector) utilisée avec une colonne Prevail Carbohydrate (Alltech), adaptée aux sucres de DP variables, s’est révélée être peu sélective du fait de l’obligation de travailler en conditions isocratiques. L’HPLC-ELSD (Evaporating Light Scattering Detector) permettant de travailler en gradient d’élution, une très bonne séparation des différents DP est obtenue sur la même colonne ainsi qu’une séparation des différents DP2 et une amélioration de la sensibilité. L’analyse quantitative reste plus délicate du fait de la zone relativement limitée de linéarité. La Chromatographie à Echange d’Anion et à Haute performance couplée à la Détection à Amperometrie Pulsée (HPAEC-PAD), une séparation hautement sélective et une détection très sensible. Elle est une des seules méthode capable de séparer des molécules homologues ayant comme seules différences leur DP ou de leur type et la séquence de leurs liaisons. L’analyse quantitative a fait l’objet d’une étude approfondie, les facteur de réponses étant dépendant de la structure, du DP et du type de liaisons des oligosaccharides. [less ▲]

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See detailUnderstanding the irregularity of Seismic cycles: A Case study in Turkey- A Marie Curie Excellence Team Project
Hubert-Ferrari; Boes; Faser et al

Poster (2007)

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See detailHepatobiliary disease : primary and metastatic liver tumours
Hustinx, Roland ULg; Detry, Olivier ULg

in Cook, Gary JR; Maisey, Michael M; Britton, Keith (Eds.) et al Clinical Nuclear Medicine (2007)

PET and PET-CT in Oncology describes the principles of positron emission tomography and is a useful resource for incorporating the technique in clinical practice. In a clear and straightforward fashion ... [more ▼]

PET and PET-CT in Oncology describes the principles of positron emission tomography and is a useful resource for incorporating the technique in clinical practice. In a clear and straightforward fashion, this heavily-illustrated text offers instructive information and overviews of the basic principles of PET and PET-CT as well as the routine clinical PET scanning procedures for all important oncological indications. It is designed to serve as a reference work for specialists in nuclear medicine and radiology (including therapy planning) and for oncologists. It also provides student and physicians in other medical specialities with a general introduction to the effective integration of this modern technique into routine clinical diagnostics. Above all, this volume illustrates the importance of PET and PET-CT in comparison with other imaging techniques. [less ▲]

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See detailLe cancer du poumon. Epidemiologie et facteurs etiologiques.
Frusch, Nicolas ULg; Bosquee, Léon ULg; Louis, Renaud ULg

in Revue Médicale de Liège (2007), 62(9), 548-53

Lung cancer is the most frequent cause of death by cancer worldwide. Despite improvements in the treatment the vital prognosis remains poor with an estimated 5-year survival rate of 15 % all stages ... [more ▼]

Lung cancer is the most frequent cause of death by cancer worldwide. Despite improvements in the treatment the vital prognosis remains poor with an estimated 5-year survival rate of 15 % all stages together. Even if some environmental exposure may favour apparition of the disease, tobacco smoking is by far the greatest risk factor for developing lung cancer. Recent progresses have been made on the identification of cellular mechanisms and genetic abnormalities that make the patients more prone to develop lung cancer. [less ▲]

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See detailNaloxone-insensitive epidural placebo analgesia in a chronic pain patient.
Kupers, Ron; Maeyaert, Jan; Boly, Mélanie ULg et al

in Anesthesiology (2007), 106(6), 1239-42

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See detailVers des politiques d’éducation « capacitantes » ? Une analyse critique de l’action publique en matière d’éducation
Verhoeven, Marie; Orianne, Jean-François ULg; Dupriez, Vincent

in Formation Emploi : Revue Française de Sciences Sociales (2007), 98

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See detailSelf-assembly of block copolymer complexes in organic solvents
Lefèvre, Nathalie ULg; Fustin, Charles-André; Varshney, Sunil K. et al

in Polymer (2007), 48(8), 2306-2311

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See detailNeuroimaging of neuronal circuits involved in tic generation in patients with Tourette syndrome.
Lerner, Alicja; Bagic, Anto; Boudreau, Elis et al

in Neurology (2007), 68(23), 1979-87

OBJECTIVE: To identify brain regions generating tics in patients with Tourette syndrome using sleep as a baseline. METHODS: We used [15O]H2O PET to study nine patients with Tourette syndrome and nine ... [more ▼]

OBJECTIVE: To identify brain regions generating tics in patients with Tourette syndrome using sleep as a baseline. METHODS: We used [15O]H2O PET to study nine patients with Tourette syndrome and nine matched control subjects. For patients, conditions included tic release states and sleep stage 2; and for control subjects, rest states and sleep stage 2. RESULTS: Our study showed robust activation of cerebellum, insula, thalamus, and putamen during tic release. CONCLUSION: The network of structures involved in tics includes the activated regions and motor cortex. The prominent involvement of cerebellum and insula suggest their involvement in tic initiation and execution. [less ▲]

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See detailPolynomial regression with censored data based on preliminary nonparametric estimation.
Heuchenne, Cédric ULg; Van Keilegom, Ingrid

in Annals of the Institute of Statistical Mathematics (2007), 59

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See detailThe Hollywood Cobweb : New Laws of Attraction (The Spectacular Mechanics of Blockbusters)
Tomasovic, Dick ULg

in Strauven, Wanda (Ed.) The Cinema of Attractions Reloaded (2007)

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See detailPalaeozoic Reefs and Bioaccumulations: Climatic and Evolutionary Controls
Álvaro; Aretz; Boulvain, Frédéric ULg et al

Book published by Geological Society (2007)

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See detailCoordination in hospitals: organized or emergent process?
Nyssen, Anne-Sophie ULg

in Cognition, Technology & Work (2007), 9(3), 149-157

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See detailTailoring microstructures to improve thermomechanical behaviour of metallic alloys : Ti alloys for Aerospace applications
Lecomte-Beckers, Jacqueline ULg; Carton, Marc ULg

in Proceedings of international workshop : Advancements in design optimization of materials, structures and mechanical systems (2007)

A more rational use of metallic materials for advanced applications (such as for example in aeronautics or fine mechanics) requires to generate the optimal microstructures through the control of the ... [more ▼]

A more rational use of metallic materials for advanced applications (such as for example in aeronautics or fine mechanics) requires to generate the optimal microstructures through the control of the elaboration and fabrication processes. In this context, the description of the critical parameters of the microstructure of the metallic materials, which influence the mechanical properties, is necessary. This step requires the knowledge of the thermically and thermomecanically activated phenomenons (phase transformation, recrystallisation,...). The interpretation and the synthesis of these observations are integrated within physical models which provide the elements necessary to the development of the physical or mathematical macroscopic model. This paper will develop one example of the laboratory MMS researches (Special Metallic Materials) concerning the study of the physicochemical mechanisms controlling the microstructural genesis and the optimization of the mechanical properties. In the case of nanostructured alpha/beta titanium alloys, bonds between mechanical properties and active microstructural elements will be presented. [less ▲]

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See detailCompte rendu de Naomi RESHOTKO, "Socratic Virtue. Making the Best of the Neither-Good-Nor-Bad"
Gavray, Marc-Antoine ULg

in Antiquité Classique : Revue Interuniversitaire d'Etudes Classiques (2007), (76), 392-393

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See detailStudying connectivity with the help of computer-readable corpora : Some exemplary analyses from modern and historical, written and spoken corpra
Zeevaert, Ludger ULg; Baumgarten, Nicole; Herkenrath, Annette et al

in Hohenstein, Christiane; Pietsch, Lukas; Rehbein, Jochen (Eds.) Connectivity in Grammar and Discourse (2007)

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See detailReceptive multilingualism : Linguistic analyses, language policies and didactic concepts
Zeevaert, Ludger ULg; ten Thije, Jan

Book published by John Benjamins (2007)

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See detailLe moabi, une espèce « phare » de l’exploitation forestière en Afrique centrale
Doucet, Jean-Louis ULg; Kouadio, Y. L.

in Parcs & Réserves (2007), 62(2), 25-31

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