Search results for "rites"
showing 10 items of 427 documents
Huntingtin mediates dendritic transport of β-actin mRNA in rat neurons
2011
Transport of mRNAs to diverse neuronal locations via RNA granules serves an important function in regulating protein synthesis within restricted sub-cellular domains. We recently detected the Huntington's disease protein huntingtin (Htt) in dendritic RNA granules; however, the functional significance of this localization is not known. Here we report that Htt and the huntingtin-associated protein 1 (HAP1) are co-localized with the microtubule motor proteins, the KIF5A kinesin and dynein, during dendritic transport of β-actin mRNA. Live cell imaging demonstrated that β-actin mRNA is associated with Htt, HAP1, and dynein intermediate chain in cultured neurons. Reduction in the levels of Htt, H…
The posthumous condition of gossip: Death and its reputational benediction
2017
Gossiping is ubiquitous in social life. In every imaginable corner of society, people from all walks of life are gossiping their living acquaintances. But what happens when the “third party,” i.e., the subject of gossip, is absent par excellence, not only temporarily and spatially, but definitively? Do people continue to gossip their dead acquaintances? What is the fate of gossip after its target dies? These are the questions this paper sets out to address. In doing so, it develops a non-reductionist sequential model of death as a social process in which biological death is only the starting point of the bio-social phenomenon of dying. Building on some classic anthropological theories and c…
Le centre communautaire et cultuel du village gaulois d'Acy-Romance dans son contexte régional
1997
International audience; (résumé de la partie archéozoologique) Les restes animaux du puits Un peu plus de 130 restes d'animaux ont été trouvés dans divers niveaux du puits, plus particulièrement dans sa partie inférieure La plupart sont de menus fragments, dont une bonne partie porte a été rongée par les chiens, certains ayant même été ingérés. Les bœufs et les chevaux de l'enclos Les ossements découverts dans l'enclos proviennent exclusivement du fossé où ils ont été enfouis, et protégés ainsi d'une destruction inéluctable s'ils étaient restés sur le sol. Toutefois, ils ont subi de nombreuses agressions depuis leur enfouissement, et ce qui nous est parvenu est sans doute une infime partie …
La fouille et l'étude des offrandes animales
2008
International audience
Origin of the Metazoan Immune System: Identification of the Molecules and Their Functions in Sponges
2011
SYNOPSIS. During the evolutionary transition to Metazoa, cell-cell- as well as cell-matrix recognition molecules have been formed, which made a further step in evolution possible, the establishment of an immune system. Sponges [Porifera] represent the oldest still extant metazoan phylum and consequently testify to major features of the common metazoan ancestor, the Urmetazoa. Most studies with respect to evolution and phylogeny in sponges have been performed with the marine demosponges Suberites domuncula and Geodia cydonium. These animals possess effective defense systems against microbes and parasites which involve engulfment of bacteria into specific cells, but also signal transduction p…
Origin of Insulin Receptor-Like Tyrosine Kinases in Marine Sponges
1999
One autapomorphic character restricted to all Metazoa including Porifera [sponges] is the existence of transmembrane receptor tyrosine kinases (RTKs). In this study we screened for molecules from one subfamily within the superfamily of the insulin receptors. The subfamily includes the insulin receptors (InsR), the insulin-like growth factor I receptors, and the InsR-related receptors--all found in vertebrates--as well as the InsR-homolog from Drosophila melanogaster. cDNAs encoding putative InsRs were isolated from the hexactinellid sponge Aphrocallistes vastus, the demosponge Suberites domuncula, and the calcareous sponge Sycon raphanus. Phylogenetic analyses of the catalytic domains of th…
Femme et dame de courtoisie dans les manuscrits enluminés en France aux xive et xve siècles
2020
Femme et dame de courtoisie ne sont guère semblables, malgré la confusion visuelle que leur mise en image engendre parfois. Il est donc essentiel de comprendre quelles modulations et répétitions visuelles utilisent les artistes de la fin du Moyen Âge pour représenter ces deux figures féminines. L’image de la dame est-elle également représentative de la place de la femme dans la société du Moyen Âge tardif ? En effet, la première est un personnage historique, rattaché à une réalité aristocrati...
O dom entre História e Antropologia. Figuras medievais do doador
2003
RésuméL'ouverture bénéfique de l'histoire envers l'anthropologie, pose la question de l'usage par la médiévistique de modèles anthropologiques pas toujours opérants pour expliquer la société médiévale. Le problème étant particulièrement sensible en ce qui concerne le don aux établissements ecclésiastiques. Dans la perspective d'une compréhension générale de cette pratique sociale présente pendant tout le Moyen Âge, l'enquête sur la figure du donateur dans les inscriptions épigraphiques (VIe-XIIe s.) révèle des traits d'un système complexe d'enchaînements entre l'ici-bas et l'au-delà: inversion et déplacement de rôles, intermédiation, circulation et duplicité des biens et des acteurs. Abstra…
Le fou de cour ou le miroir du prince. Le personnage du fou à la cour de Bourgogne à la fin du Moyen Age
2003
dir. Anne-Marie Cocula et Michel Combet; International audience
Initiation of an Aquaculture of Sponges for the Sustainable Production of Bioactive Metabolites in Open Systems: Example, Geodia cydonium.
1999
Among Metazoa, sponges (phylum Porifera) are the richest source for different bioactive compounds. The availability of the raw material is, however, restricted. To obtain enough of the bioactive compounds for application in human therapy, sponges have to be cultured in in vitro systems. One technique for the establishment of a long-term cell culture from sponges has recently been elaborated. Here, we present a procedure to cultivate tissue samples from sponges in an open system. The species Geodia cydonium, which produces bioactive compounds, has been selected. Tissue samples of approximately 10 g were attached to the bottoms of cultivation trays. After 2 to 3 days, the tissue samples forme…