Neolithic flat-based pots from the Carnac Mounds in the light of Cycladic ‘frying pans’

A rare type of pottery, found in four single graves under earthen mounds in the Carnac region of Brittany, consists of a circular, flat-based vessel with a near-vertical wall. On the basis of the equipment known from elsewhere in the world, it is possible that the morphology of these dishes is related to processes involved in the production of salt. To help us in exploring their function, we chose to compare these vessels with another enigmatic class of pottery from the Cyclades – the socalled ‘frying pans’ – which seems to have functioned in a similar way, as an object-sign, and has been found in a maritime milieu and in high-status contexts.V zemljeni gomili v regiji Carnac v Bretaniji smo v štirih posameznih grobovih odkrili nov tip posode, za katero je značilna krožna oblika z ravnim dnom in skoraj navpično steno. Na podlagi predmetov, ki jih poznamo drugje po svetu, sklepamo, da je oblika teh skled povezana s pridobivanjem soli. O njihovi uporabi sklepamo s pomočjo primerjav s t.i. ‘ponvami’ s Kikladskega otočja, za katere se zdi, da so jih uporabljali v podobne namene, tudi kot predmet-znak in se pojavljajo v obmorskih okoljih ter v kontekstih, povezanih z višjim družbenim slojem

Production et diffusion de parures néolithiques en séricite et autres micas en quart nord-ouest de la France dans son contexte européen

International audienceAdornments made from sericite and other micas are found mainly in funerary contexts across the northwestern quadrant of France. The analysis of such contexts shows that these objects were used over a long time, as they appear in individual burials dated back to the end of the early Neolithic period, but especially in those contexts belonging to the middle Neolithic 2 period, where they are found in passage graves and even in the tombs with vestibules of the late Neolithic period. Even when the spatial clustering, as well as the identification of roughouts and the presence of vein deposits of this raw material, suggests that the production of sericite adornments was well circumscribed to the Loire-Atlantique, their distribution reaches a radius of 300 km. Furthermore, these ornaments are a very fine example of a good substitute for those objects made from Iberian variscite and turquoise. However, these adornments are not confined to northern France, as evidenced by our first inventory; thus, this type of mineralisation was also used by other western European communities (Switzerland, northern Italy, southern France, Spain and Portugal) as a raw material for making ornaments, the communities among which, we now try to discuss the possible interactions.Les parures en séricite et autres micas se rencontrent principalement au sein des assemblages funéraires sur l’ensemble du quart nord-ouest de la France. L’étude des contextes montre leur emploi à travers une chronologie longue, marquant les sociétés de la fin du Néolithique ancien dans les sépultures individuelles, mais surtout celles du Néolithique moyen 2 où on les retrouve dans les tombes à couloir, jusqu’au Néolithique récent et final dans les tombes à vestibules. Alors que la production de ces parures semble bien circonscrite en Loire-Atlantique, grâce notamment à la reconnaissance spatiale de concentrations de mobilier mais aussi d’ébauches et la présence de gîtes filoniens, leur diffusion porte sur un rayon de 300 km. Ces parures constituent, de plus, un très bon exemple de produit de substitution à celles en variscite et turquoise d’origine ibérique. Mais ces parures en mica ne concernent pas seulement le nord de la France. Comme le montre notre premier inventaire, on rencontre également ce type de minéralisation parmi les parures des communautés d’Europe occidentale (Suisse, Italie du Nord, Midi de la France, Espagne et Portugal), dont nous tâchons d’évoquer les éventuelles interactions

Categories of Resistance, Antibiosis and Tolerance, to Biotype I Greenbug (\u3ci\u3eSchizaphis graminum\u3c/i\u3e (Rondani) Homoptera: Aphididae) in Four Sorghum (\u3ci\u3eSorghum bicolor\u3c/i\u3e (L.) Moench. Poales:Gramineae) Hybrids

Resistance categories (antibiosis and tolerance) of four sorghum (Sorghum bicolor (L.) Moench) hybrids to biotype I greenbug, Schizaphis graminum (Rondani), were determined in environmental growth chamber and field studies. Greenbug weight and fecundity were lower on ‘Cargill 607E’ compared with ‘Cargill 797’. Percentage of leaf damage area was significantly less on two resistant hybrids (Cargill 607E and Cargill 797) after a 14-d greenbug feeding period compared to two susceptible hybrids (‘Golden Harvest 510B’ and Garst 5715). In growth chamber studies on sorghum seedlings, ‘Cargill 607E’ and ‘Cargill 797’ reduced greenbug weight significantly compared with ‘Golden Harvest 510B’ and ‘Garst 5715’. Greenbug weight was 2.9 mg/25 greenbugs on ‘Cargill 607E’, 3.1 mg/25 greenbugs on ‘Cargill 797’, 3.9 mg/25 greenbugs on ‘Golden Harvest 510B’, and 4.8 mg/25 greenbugs on ‘Garst 5715’. On field grown sorghum plants, ‘Cargill 797’ did not reduce greenbug growth compared with ‘Golden Harvest 510B’. ‘Cargill 607E’ had a negative impact on weight of greenbugs. Greenbug weight was 7.9 mg/25 greenbugs on ‘Cargill 607E’, 9.2 mg/25 greenbugs on ‘Cargill 797’, and 10.0 mg/25 greenbugs on ‘Golden Harvest 510B’. ‘Cargill 607E’ and ‘Cargill 797’ were resistant to biotype I greenbugs compared with susceptible ‘Golden Harvest 510B’ and ‘Garst 5715’. Antibiosis was confirmed as the primary category of resistance in ‘Cargill 607E.’ ‘Cargill 797’ was primarily tolerant but may have some level of antibiosis, because smaller greenbugs developed in some of the studies

Accréditation ANAES et biologie médicale

PARIS-BIUM (751062103) / SudocCentre Technique Livre Ens. Sup. (774682301) / SudocSudocFranceF

La parure en callaïs du Néolithique européen

International audienc

Improved tolerancing for production yield anticipation of optical micro-modules for cameraphones

International audienc

Mechanical properties of clay-reinforced polyamide

International audienc

Teviec revisited: new insights on a Late Mesolithic Coastal Atlantic Cemetery

Session XX-2. Shell mounds, shell middens and coastal resourcesInternational audienceAfter the excavations of M. and S. -J. Péquart between 1928 and 1930, followed by an exemplary monograph published in 1937, the shell midden of Téviec, in the south of Morbihan (France), became one of the legendary sites of the European Mesolithic. With 10 graves (23 individuals), the cemetery cut into a shell layer that in turn helped preserve the skeletal remains. The study of the excavated materials (human and artefactual) has continued since the excavations. However, the dispersal of the collections between several institutions, the outbreak of World War II and neglect of the archive has lead to a reduction in the quantity of data. The CIMATLANTIC research program (World of the Dead / World of the Living in Atlantic France:From the Anthropology of Population s to the Prehistoric Identities) made it possible to create an inventory of surviving materials and carry out new specialised studies. The grave goods have been reconsidered after technological and functional studies. Reappraisal of the body ornaments informs on their selection, manufacture and use, and their function as a vector of social information is discussed. Flint tools appear to have had a limited life history, suggesting they were commissioned for the grave. A critical examination of the depositional practices at the site allows for new understanding on the social organisation. The study of faunal remains, which have remained unpublished, allows us to refine our understanding of the economic networks of these marine hunter-gatherer populations. Finally, new radiocarbon dating places this site at the temporal heart of the cultural dynamics of Late Mesolithic Atlantic Europe