Introduction to the geology of the Heid des Gattes at Sougné-Remouchamps (Liège province, Belgium)

Introduction à la géologie du site de la Heid des Gattes à Sougné-Remouchamps (province de Liège, Belgique) où sont exposées les formations de la Famenne, d'Esneux, de Souverain-Pré, de Comblain-la-Tour, de Montfort et d'Evieux (Dévonien supérieur (Famennien).Introduction to the geology of the Heid des Gattes at Sougné-Remouchamps (Liège province, Belgium) where the Famenne, Esneux, Souverain-Pré, Comblain-la-Tour, Montfort and Evieux formations (Upper Devonian, Famennian) are exposed

The red crinoidal limestone of Baelen (late Upper Devonian), a particular historical building stone with an unusual depositional setting, global geological importance and local use

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Household labour supply and the marriage market in the UK, 1991-2008

We document changes in labour supply, wage and education by gender and marital status using the British Household Panel Survey, 1991-2008, and seek to disentangle the main channels behind these changes. To this end, we use a version of Goussé et al. (2016)'s search-matching model of the marriage market with labour supply, which does not use information on home production time inputs. We derive conditions under which the model is identified. We estimate different parameters for each year. This allows us to quantify how much of the changes in labour supply, wage and education by gender and marital status depends on changes in the preferences for leisure of men and women and how much depends on changes in homophily

New data on the incertae sedis biota and foraminifera of the mid-Famennian Baelen Member (Late Devonian, eastern Belgium)

The Baelen mud mounds in eastern Belgium represent a local member of the mid-Famennian Souverain-Pré Formation (an important carbonate interval within the Condroz Sandstone Group). The lower part of this member contains silty bioclastic wackestones and packstones that are particularly rich in the problematical algae Serrisinella and Dreesenullella. Plurilocular foraminifera (Septabrunsiina and Baelenia) and rare solitary rugose corals (Neaxon? sp.) occur within crinoidal grainstones (tempestites) interfingering with the latter bioclastic wacke-/packstones and red-stained stromatactoid spiculitic mudstones (carbonate mound core facies). Although Serrisinella is quite common in other mid- and late Famennian limestones, of Belgium, Dreesenulella is almost endemic of the Baelen Member. Both genera apparently inhabited the muddy sediment-water interface, constituting meadows probably in zones of intermittently strong bottom currents. The taxonomic similarities between Dreesenulella and Saccamminopsis are discussed, as well as their possible affinities with the Xenophophyrea and Kokomiacea. Moreover, the first stages of the Septabrunsiina–Baelenia foraminiferal lineage are analysed in detail. The taxonomic and palaoecological positioning of Serrissinella and Dreesenulella adds to the discussion about the palaeobathymetry of the Baelen mud mounds and corroborates sedimentological evidence for their relatively shallow carbonate ramp depositional setting

L'origine des mégalithes du Fond de Quarreux (Ardenne, Belgique)

Une étude de la répartition de mégalithes dans la vallée de l’Amblève à sa traversée des quartzites d’âge Cambrien de la Formation de La Venne à l’extrémité occidentale de la crête de la Vecquée a été réalisée. Elle a permis de montrer que les fortes concentrations présentes au Fond de Quarreux s’expliquent essentiellement par des apports des versants adjacents en environnement périglaciaire. L’étude sédimentologique de dépôts des vallées de la Chefna, du Ninglinspo et de l’Amblève elle-même permet de situer dans le Dryas récent des dépôts périglaciaires de couverture. Les mécanismes qui ont conduit à la situation actuelle ont agi de la même façon pendant tous les stades isotopiques marins (S.IM.) les plus froids du Quaternaire, c’est-à-dire les stades pairs #22 à #2. L’application de la force tractrice critique et de la puissance spécifique critique au calcul de la compétence de l’Amblève montre que le cours d’eau ne peut déplacer des blocs de plus 50 cm de diamètre dans les conditions climatiques actuelles. Il en résulte que les radeaux de glace ont dû assurer en climat périglaciaire l’essentiel de l’évacuation des mégalithes qui se sont trouvés dans le lit du cours d’eau depuis qu’il est incisé dans les quartzites cambriens de la Formation de La Venne.Origin of megaliths of the Fond de Quarreux (Ardenne, Belgium). Distribution of megaliths was studied in the Ambleve valley throughout its gorge developed within the quartzites of the Cambrian-aged La Venne Formation (Fond de Quarreux) in the south-eastern part of high Belgium. The high concentration of megaliths at this place can be essentially explained by mass movements which have occurred on the adjacent slopes in periglacial periods of cold Ocean Isotopic Stages in Quaternary times, and especially the coldest ones i.e. even O.I.S.#22 through #2. Stratigraphical studies of deposits in the Chefna and Ambleve valleys allowed us to place final periglacial deposits during the Younger Dryas. The critical shear stress and the critical unit stream power are used in order to evaluate the Ambleve River competence. It results that, under the present climatic conditions, this river cannot move boulders of more than 50 cm in diameter. Hence, it is concluded that ice rafting has been the main process responsible for carrying away the megaliths which have got the Ambleve river bed throughout the Quaternary Period.Peer reviewe

Campylobacter fetus Bacteremia Revealed by Cellulitis without Gastrointestinal Symptoms in the Context of Acquired Hypogammaglobulinemia: A Report of Three Cases

Campylobacter fetus bacteremia is rare and occurs mainly in patients with immunosuppression. This infection, which often involves secondary localizations has already been reported in some primary humoral immune deficiencies. We describe three cases of severe infection due to C. fetus with cellulitis at presentation, but without any gastrointestinal symptoms, occurring in patients with acquired hypogammaglobulinemia

Development of an Analytical Model to Determine the Heat Fluxes to a Structural Element Due to a Travelling Fire

peer reviewedThe term “travelling fire” is used to label fires which burn locally and move across the floor over a period of time in large compartments. Through experimental and numerical campaigns and while observing the tragic travelling fire events, it became clear that such fires imply a transient heating of the surrounding structure. The necessity to better characterize the thermal impact generated on the structure by a travelling fire motivated the development of an analytical model allowing to capture, in a simple manner, the multidimensional transient heating of a structure considering the effect of the ventilation. This paper first presents the basic assumptions of a new analytical model which is based on the virtual solid flame concept; a comparison of the steel temperatures measured during a travelling fire test in a steel-framed building with the ones obtained analytically is then presented. The limitations inherent to the analyticity of the model are also discussed. This paper suggests that the developed analytical model can allow for both an acceptable representation of the travelling fire in terms of fire spread and steel temperatures while not being computationally demanding, making it potentially desirable for pre-design