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See detailIron oxide-rich rocks in Palaeolithic context: Middle Stone Age of Africa and Late Mousterian in France
Salomon, Hélène ULg; Coquinot, Yvan

Scientific conference (2012)

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See detailIron production in the region of Liège in the Middle Age: Contribution of slag inclusions analyses
Mertens, Anne ULg; Mathis, François ULg; DILLMANN, Philiippe et al

Conference (2009, February)

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See detailIron status in runners of various running specialities
Mouton, G.; Sluse, Francis ULg; Bertrand, A. et al

in Archives Internationales de Physiologie et de Biochimie (1990), 98

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See detailIron study during a time series in the western Weddell pack ice
Lannuzel, Delphine; Schoemann, Veronique; de Jong, Jeroen et al

in Marine Chemistry (2008), 108(1-2), 85-95

Samples of sea ice, snow, brine and underlying seawater were collected in the western Weddell pack ice at the ISPOL drifting station (Ice Station POLarstern, 68 degrees S/55 degrees W) in spring-summer ... [more ▼]

Samples of sea ice, snow, brine and underlying seawater were collected in the western Weddell pack ice at the ISPOL drifting station (Ice Station POLarstern, 68 degrees S/55 degrees W) in spring-summer period (November 2004-January 2005). Total-dissolvable, dissolved and particulate Fe concentrations in the sea ice environment were determined every 5 days during the time series, together with relevant physical, chemical and biological parameters. From 29 November to 30 December, a decrease in all forms of Fe measured was observed, likely to be the result of enhanced ice permeability as summer proceeds. At the beginning of the time series, melting of the upper ice layer took place together with brine drainage process. This would enable the seeding of Fe from the ice matrix towards the upper water column below. 70% of this Fe was supplied during the first 10 days of the survey, while the ice cover is still present. Flux estimates from the sampled area furthermore highlight the relevant role of the pack ice in the biogeochemical cycle of Fe in the western Weddell Sea. (C) 2007 Elsevier B.V. All rights reserved. [less ▲]

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See detailIron(III) species dispersed in porous silica through sol-gel chemistry
Heinrichs, Benoît ULg; Rebbouh, Leila; Geus, John W et al

in Journal of Non-Crystalline Solids (2008), 354(2-9), 665-672

Fe/SiO2 catalysts have been prepared by two different sol-gel methods, cogelation and dissolution. The cogelation and dissolution preparative methods lead to xerogels with fundamentally different pore ... [more ▼]

Fe/SiO2 catalysts have been prepared by two different sol-gel methods, cogelation and dissolution. The cogelation and dissolution preparative methods lead to xerogels with fundamentally different pore width distributions. The nature of the iron species obtained has been examined in detail by UN-visible and Mossbauer spectroscopy, and magnetic, transmission electron microscopy, and X-ray diffraction studies. There is no evidence for the presence of any ordered iron(III) oxides in the samples but all three contain two types of iron species, specifically paramagnetic high-spin iron(III) ions isolated in silica and iron(III) containing nanoparticles with a broad width distribution centered on 1.5 nm, nanoparticles that contain antiferromagnetically coupled clusters of a few ligated bridged iron(III) ions. (C) 2007 Elsevier B.V. All rights reserved. [less ▲]

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See detailIron(III) species dispersed in porous silica through sol-gel chemistry: nature, size, and catalytic activity
Heinrichs, Benoît ULg; Rebbouh, Leila; Geus, John W. et al

Conference (2006)

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See detailIron-manganese phosphates with the olivine- and alluaudite-type structures : crystal chemistry and applications
Hatert, Frédéric ULg

in Krivovichev, Sergey (Ed.) Mineral as Advanced Materials II (2012)

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See detailIron-manganese phosphates with the olivine- and alluaudite-type structures: crystal chemistry and applications
Hatert, Frédéric ULg

in Minerals as Advanced Materials II, Abstract Book (2010)

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See detailIron-Titanium oxide minerals in the Bjerkrem-Sogndal massif, south-western Norway
Duchesne, Jean-Clair ULg

in Journal of Petrology (1972), 13(1), 57-81

Ilmenite and magnetite are investigated from the point of view of their distribution, micro-texture, and chemical composition (major and minor elements) in the Bjerkreim-Sokndal massif (Egersund area ... [more ▼]

Ilmenite and magnetite are investigated from the point of view of their distribution, micro-texture, and chemical composition (major and minor elements) in the Bjerkreim-Sokndal massif (Egersund area, South-Rogaland, SW. Norway). This massif is an igneous layered lopolith made up of cumulates of the anorthosite-mangerite suite. The lower part of the massif presents a rhytmic structure. The microtextures of ilmenite result from simple exsolution of ilmenite-hematite solid solution. Magnetite contains intergrowths of ilmenite formed by oxidation-exsolution of ulvöspinel-magnetite solid-solution. In the stratigraphic sequence, on a large scale, ilmenite appears first alone, and is then accompanied by magnetite; its hematite content decreases towards the top of the massif, while the titanium content of the magnetite increases. On the scale of the rhythms, similar trends but of a lesser amplitude are also observed. Evidence of deuteric readjustment of the orthomagmatic composition of the two oxides is provided (1) by the observation of microtextures at the contact betwen grains (zoning of primary ilmenite and rim of secondary ilmenite) (2) by the existence of differences in chemical composition between isolated grains and grains in contact, and (3) bythe determination of the equilibrium temperature by means of the Buddington and Lindsley geothermonmeter. Reconstruction of the T-fO2 orthomagmatic conditions is provided in two particular levels of the massif shows that the reducing character of the magma increases during differentiation. The sudden changes in the oxide assembalge at the base of the rythmic units reflect a sudden increase in the fO2 of the magma. These increases, as shown by variation in Cr, Ni and Co, are due to recurrences of the basic character of the magma. The variations of the minor elements Mn, V, Ga, and Zn are interpreted in terms of the influence of the deuteric readjustment. It follows that the ratios Mn/Fe2+ ; Ga/Fe3+, and Zn/Fe2+ increase and that the ratio V/Fe3+ decreases in the magma in the course of differentiation. The distribution of Mn between ilmenite and magnetite is discussed. Intermittent supplies of undifferentiated magma are proposed as the geological mechanism controlling the chemical recurrencess associated with the rhythmic structure. [less ▲]

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See detailIronia e dissacrazione attraverso l’ekphrasis negli studi del Gattopardo
de Seta, Ilaria ULg

in Oblio – Osservatorio Bibliografico della Letteratura Italiana Otto-novecentesca (2012), II(8), 27-37

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See detailL’ironie dans Ounamon : les emplois de mk et de ptr
Winand, Jean ULg

in Göttinger Miszellen (2004), (200), 105-110

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See detailIronie et idéologie. Réflexions sur la responsabilité idéologique du texte
Denis, Benoît ULg

in COnTEXTES : Revue de Sociologie de la Littérature (2007, February), (2),

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See detailIronie et paradoxe des temps parallèles dans les Nouvelles du Grand Possible de Marcel Thiry
Durand, Pascal ULg

Scientific conference (1985, March 20)

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See detailIronies et Utopies. Dimensions cosmologiques dans l’art contemporain
Bawin, Julie ULg

in Art Même : Chronique des Arts Plastiques de la Communauté française de Belgique (2005), (28), 27-28

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See detailIrradiation du petit bassin et fonction ano-rectale.
Gervaz, P; COUCKE, Philippe ULg; Gillet, M

in Gastroentérologie Clinique et Biologique (2001), 25

Le traitement adjuvant des cancers du rectum a pour buts de stériliser la maladie résiduelle infra-clinique et d’améliorer le contrôle local. Depuis plus de 20 ans, des milliers de malades ont été inclus ... [more ▼]

Le traitement adjuvant des cancers du rectum a pour buts de stériliser la maladie résiduelle infra-clinique et d’améliorer le contrôle local. Depuis plus de 20 ans, des milliers de malades ont été inclus dans des études randomisées, visant d’abord à mettre en évidence un gain de survie et une réduction des récidives loco-régionales, en relation avec la radiothérapie pré- ou postopératoire, combinée ou non à la chimiothérapie. Les conséquences en termes de qualité de vie de ces traitements ont pourtant été peu étudiées, et la tolérance fonctionnelle du néo-rectum et de l’appareil sphinctérien à la radiothérapie restent mal connues [1]. Les difficultés liées à l’étude des effets de l’irradiation sur les tissus normaux, ainsi que la variabilité inter-individuelle de la réponse à la radiothérapie, s’ajoutent et rendent le sujet plus complexe encore. Les radiothérapeutes adaptent leur technique afin de réduire autant que possible la dose administrée aux tissus normaux avoisinant la tumeur. Dans le cas de l’irradiation du petit bassin, c’est l’intestin grêle qui a longtemps été considéré comme la structure à risque de complications, alors que l’atteinte du sphincter anal était rarement mentionnée [2]. Malgré les répercussions importantes de la dysfonction ano-rectale sur la qualité de vie des malades, l’atteinte du sphincter anal par la radiothérapie est restée un aspect négligé du traitement adjuvant des cancers du petit bassin [3]. Cet article a pour but, à travers une revue de la littérature, de mettre en évidence les effets qualitatifs et quantitatifs de la radiothérapie sur la fonction du sphincter anal, ainsi que de proposer une modification de la technique actuelle d’irradiation des cancers du bas rectum. [less ▲]

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See detailL'irradiation partielle du sein et le role de la curietherapie: une nouvelle approche therapeutique pour les carcinomes mammaires de bon pronostic
Jansen, Nicolas ULg; Nickers, Philippe ULg; Deneufbourg, Jean-Marie ULg

in Revue Médicale de Liège (2006), 61(2), 97-103

Early breast cancer can be treated by conservative surgery followed by partial breast irradiation. This recent treatment replaces classical external beam whole breast radiotherapy. Several techniques are ... [more ▼]

Early breast cancer can be treated by conservative surgery followed by partial breast irradiation. This recent treatment replaces classical external beam whole breast radiotherapy. Several techniques are available but most experience does exist with interstitial catheter based brachytherapy. This well tolerated treatment shortens the treatment time and offers a good local control and cosmetic outcome, comparable to the best classical treatments, as confirmed by the first published results. These good results can only be obtained by rigorous patient selection and very precise 3D imaging and source implantation techniques. [less ▲]

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