Search results for "FOSS"

Le sanctuaire laténien de Semoine, « Voie Palon » (Aube)

2012

A rescue excavation in 2003 resulted in the discovery of a building on piles, constructed between two sections of ditch, of which the one on the north side has an entrance. The chronological data of the building and two ditches match and demonstrate the existence of cults during La Tène C2. Evidence of the cults is given by a small quantity of deliberately mutilated weapons, as has been found in other La Tène sanctuaries. Dating the creation of the enclosure is problematicaln but it probably derives from La Tène C1. Although sections of the site remained unexcavated, the stratigraphy of the ditches reveals the brevity and limited and unusual nature of the practices. This study links them to…

Bailly-Romainvilliers /Serris, La Motte (77) : rapport de diagnostic

2022

Cette zone d’intervention se situe entre des sites importants déjà reconnus, comme Serris Les Ruelles et différents sites de Bailly-Romainvilliers. Menée sur une surface de 532 907 m², l’opération a permis de mettre aux jours différents vestiges allant du Mésolithique à l’époque contemporaine.Pour la période la plus ancienne, il est rare de découvrir des vestiges datant du Mésolithique sur le secteur de Marne-la-Vallée, il s’agit de silex sur une petite partie de l’emprise se développant sur environ 800 m².Les tranchées ont aussi permis de mettre au jour des indices d’une occupation domestique du Néolithique final repartie sur l’ensemble de l’emprise déterminée par la présence de pièces lit…

Fouille d’un quartier funéraire des Ier et IIe s. dans le suburbium de Soissons/Augusta Suessionum : aires de crémation et inhumations d’enfants

2012

In the beginning of 2008 a preventive excavation has been conducted on about 1200 m2 of a large antique cemetery situated upon the butte Saint-Jean at Soissons (Aisne). In this cemetery, almost unknown, located south-west of the Roman town Augusta Suessionum a consistent activity in the part being excavated took place between the Augustan era and mid 2nd c. The total number of inhumations uncovered is 186 (mainly of infants). Cremations were executed from the very beginning altogether with inhumations, in more or less close proximity to them according to periods, then became predominant to the detriment of burials which were just previously arranged. Different structures clearly connected t…

The effects of biomass co-gasification and co-firing on the development of combustion dynamics

2018

Abstract Effects of wheat straw co-firing with gas (propane flame) and co-gasification/co-combustion with wood pellets on the development of thermo-chemical conversion of biomass pellets and on heat energy production were experimentally studied and analyzed with the aim to improve the gasification/combustion characteristics and the applicability of wheat straw as an alternative energy source for cleaner heat energy production. The results suggest that the wheat straw co-firing with propane provides an enhanced thermal decomposition of pellets with more complete combustion of volatiles increasing thus the heat output at thermo-chemical conversion of wheat straw and the produced heat energy p…

Cernay-lès-Reims (Marne). Cernay-lès-Reims « le Bas de la Noue Saint Rémy » zone 9 [notice archéologique]

2019

Localisée en limite SE de l’agglomération rémoise, sur la commune de Cernay-les-Reims, l’emprise de l’opération porte sur une surface de 11 300 m2. Cette neuvième concentration de vestiges, fouillée sur un parc d’activité, correspond à un établissement rural de l’Antiquité tardive, prolongé à l’époque médiévale par une zone d’activité artisanale. Ces deux occupations se développent le long d’un axe de circulation qui perdure vraisemblablement de l’Antiquité à la première guerre mondiale.

Les systèmes de fosses profondes à la Pré- et Protohistoire : cartographie des fosses mésolithiques et des Schlitzgruben à l’échelle nationale

2016

A nation-wide project of mapping deep pits dating to Pre- and Protohistory in continental France was launched by INRAP in 2015. Positioned at the interface between regional projects, on pits with V-, Y- and W-shaped profile (Schlitzgruben) as well as on deep pits dated to the Mesolithic, and nation-wide studies carried out by the INRAP (such as those focusing on the Bronze Age and Early Iron Age), the current project aims to bring together data and actors within the field of rescue archaeology in order to create an operational mapping tool. Constructed on a rational basis combining four levels of information (operation, pit systems, pits, absolute dates), this tool should ensure the incorpo…

Shaping the antipredator strategy: flexibility, consistency, and behavioral correlations under varying predation threat

2014

9 pages; International audience; Recent ecological and evolutionary research emphasizes the importance of adaptive trait integration. For instance, antipredator defenses are built up of several morphological and behavioral components in many species, yet their functional relationships are still poorly documented. Using field-collected freshwater crustaceans Gammarus fossarum in a within-subject design, we investigated the flexibility and consistency of refuge use, photophobia, and exploration behavior as well as their associations, quantified both when predation risk was absent or artificially simulated. In agreement with the "threat-sensitivity" hypothesis, both refuge use and photophobia …

Do cilia drive water through the buccopharyngeal and opercular cavities in the fossorial Otophryne robusta tadpole?

1993

The unique skeleton of siliceous sponges (Porifera; Hexactinellida and Demospongiae) that evolved first from the Urmetazoa during the Proterozoic: a …

2007

Abstract. Sponges (phylum Porifera) had been considered as an enigmatic phylum, prior to the analysis of their genetic repertoire/tool kit. Already with the isolation of the first adhesion molecule, galectin, it became clear that the sequences of the sponge cell surface receptors and those of the molecules forming the intracellular signal transduction pathways, triggered by them, share high similarity to those identified in other metazoan phyla. These studies demonstrated that all metazoan phyla, including the Porifera, originate from one common ancestor, the Urmetazoa. The sponges evolved during a time prior to the Ediacaran-Cambrian boundary (542 million years ago (myr)). They appeared du…

Late Quaternary high uplift rates in northeastern Sicily: evidence from calcareous nannofossils and benthic and planktonic foraminifera

2011

The northeastern part of Sicily is characterized by intense seismic activity. Several systems of faults have been recognized in Pliocene and Pleistocene sediments in the area and, in fact, estimates of uplift rates are among the highest recorded in Sicily and south Italy. We examined calcareous nannofossil and benthic and planktonic foraminifera assemblages from pelitic sediments of the Contrada Zura section (Barcellona Pozzo di Gotto Basin, Furnari village, Messina). The occurrence of Emiliania huxleyi, a coccolithophore species which appeared in the oceanic record about 270,000 years ago, is witness to the uniqueness of this outcrop, while the planktonic/benthic foraminifera ratio indicat…