Search results for "Campaniform"

The fine structural organization of sternal glands of pseudergates and workers in termites (Isoptera): a comparative survey

2008

1873-5495 (Electronic) Comparative Study Journal Article; Thirty-nine species belonging to different families of termites are studied to give a comprehensive view of the evolution of the sternal glands. Several modifications occurring at cuticular and cytological levels are described in neuter castes. The outer epicuticle is always pierced by epicuticular pores. In advanced termites the epicuticular filaments greatly increase in number and length creating a thick layer. The pore canals gradually enlarge while the cuticle changes into a lattice structure lining an extracellular space in which the secretion is stored. Two classes of cells are present in basal termites (Mastotermitidae, Hodote…

Le Campaniforme et l'Europe à la fin du Néolithique

2006

A paraître : LEMERCIER O. : Le Campaniforme et l'Europe à la fin du Néolithique, in : Actes du colloque international : La Préhistoire de l'Europe occidentale : un bilan des connaissances à l'aube du 3e millénaire, Toulon, 2005, sous presse.; Qu'est ce que le phénomène campaniforme ? Que traduit-il dans l'évolution des sociétés de la fin du Néolithique européen ? Ce court article offre un bref état de la question au début du XXIe siècle en proposant quelques éléments de réponse et quelques questionnements.

Le guerrier dans l'Europe du 3e millénaire avant notre ère. L'arc et le poignard dans les sépultures individuelles campaniformes

2009

Campaniformes insulaires et continentaux de France et d'Italie méditerranéennes: Relations et échanges entre Corse, Sardaigne, Toscane et Midi frança…

2006

Les spectaculaires développements régionaux du Campaniforme dans le sud-est de la France, en Toscane et en Sardaigne traduisent, par un certain nombre d'éléments, une origine commune et des relations parfois suivies de contacts et d'échanges dans la seconde moitié du troisième millénaire avant notre ère. Cependant, leur profusion qui s'oppose à la quasi-absence de vestiges campaniformes en Corse, des décalages chronologiques d'implantation et des influences multiples (méditerranéennes, centre-européennes...) montrent l'existence de plusieurs réseaux de diffusion dans le temps et dans l'espace ainsi que des mécanismes historiques complexes.Ce court article propose de croiser différentes appr…

Campaniformes insulaires et continentaux de France et d'Italie méditerranéennes

2007

The beaker phenomenon and the Genomic transformations of Northwest Europe

2018

Bell Beaker pottery spread across western and central Europe beginning around 2750 BCE before disappearing between 2200–1800 BCE. The mechanism of its expansion is a topic of long-standing debate, with support for both cultural diffusion and human migration. We present new genome-wide ancient DNA data from 170 Neolithic, Copper Age and Bronze Age Europeans, including 100 Beaker-associated individuals. In contrast to the Corded Ware Complex, which has previously been identified as arriving in central Europe following migration from the east, we observe limited genetic affinity between Iberian and central European Beaker Complex-associated individuals, and thus exclude migration as a signific…

Morphogenesis of mechanoreceptor and epidermal cells of crickets during the last instar, and its relation to molting-hormone level.

1980

(1) The fine structure of the cercal campaniform sensilla and epidermal cells of Gryllus bimaculatus Deg. (Saltatoria, Gryllidae) was examined, and the ecdysteroid level was monitored throughout the last larval instar. (2) The epidermal cells show changes in shape, cytoplasmic inclusions and differentiation of the apical cell membrane, coupled to the phases of buildup and breakdown of the (cercus) cuticle. (3) The imaginal epicuticle of the epidermal cells begins to form later (by about approximately 6h) than that of the campaniform sensilla. (4) The campaniform sensilla were studied with respect to (a) the morphogenesis of the cuticular apparatus, (b) the inclusion of phenol oxidases in th…

Interpreting the Beaker phenomenon in Mediterranean France: an Iron Age analogy

2012

http://antiquity.ac.uk/ant/086/ant0860131.htm; International audience; The author offers a new descriptive explanation of the Beaker phenomenon, by focusing on Mediterranean France and making reference to the Greek influx in the same area 2000 years later. In the Iron Age, the influence began with an exploratory phase, and then went on to create new settlements and colonise new areas away from the coast. The Beaker analogy is striking, with phases of exploration and implantation and acculturation, but adjusted to include a final phase where Beaker practice was more independent. Comparing the numerous models put forward to explain it, the author shows that immigration and a cultural package …

Explorations, implantations et diffusions : le "phénomène" campaniforme en France méditerranéenne

2004

In the south-east of France, the first Bell Beaker expansion is manifested by the presence of isolated ceramics but also by a series of settlements established in contact with the indigenous populations. Analysis of the assemblages, their composition and their distribution makes it possible to propose a model of the appearance and development of the Bell Beaker phenomenon but also the probable origin of the elements present in this area.

2500 avant notre ère : l’implantation campaniforme en France méditerranéenne

2013

Around 2 500 BC, drinking beakers with a characteristic pattern appeared in diverse areas of Europe. They are frequently associated with other kinds of materials, like specific ornaments and weapons. This set defines what is called the Bell Beaker phenomenon. In Southern France, more than 600 sites are known. In this very rich European study area, it is possible to study the nature and origin of this phenomenon, and question its poten-tial exogenous components, its modes of establishment and development, and its rela-tionship with local groups that had already settled in the South of France. Consequently, a layout similar to the Greek colonization model of the Mediterranean coast is proposed