Search results for "lcsh:Z"
showing 10 items of 229 documents
Fossil echinoid (Echinoidea, Echinodermata) diversity of the Early Cretaceous (Hauterivian) in the Paris Basin (France).
2013
11 pages; International audience; This dataset inventories occurrence records of fossil echinoid specimens collected in the Calcaires à Spatangues Formation (CSF) that crops out in the southeast of the Paris Basin (France), and is dated from the Acanthodiscus radiatus chronozone (ca. 132 Ma, early Hauterivian, Early Cretaceous). Fossil richness and abundance of the CSF has attracted the attention of palaeontologists since the middle of the nineteenth century. This dataset compiles occurrence data (referenced by locality names and geographic coordinates with decimal numbers) of fossil echinoids both collated from the literature published over a century and a half, and completed by data from …
Visualizing linguistic variation in a network of Latin documents and scribes
2018
This article explores whether and how network visualization can benefit philological and historical-linguistic study. This is illustrated with a corpus-based investigation of scribes' language use in a lemmatized and morphologically annotated corpus of documentary Latin (Late Latin Charter Treebank, LLCT2). We extract four continuous linguistic variables from LLCT2 and utilize a gradient colour palette in Gephi to visualize the variable values as node attributes in a trimodal network which consists of the documents, writers, and writing locations underlying the same corpus. We call this network the "LLCT2 network". The geographical coordinates of the location nodes form an approximate map, …
Ontology-based Integration of Web Navigation for Dynamic User Profiling
2015
The development of technology for handling information on a Big Data-scale is a buzzing topic of current research. Indeed, improved techniques for knowledge discovery are crucial for scientific and economic exploitation of large-scale raw data. In research collaboration with an industrial actor, we explore the applicability of ontology-based knowledge extraction and representation for today's biggest source of large-scale data, the Web. The goal is to develop a profiling application, based on the implicit information that every user leaves while navigating the online, with the goal to identify and model preferences and interests in a detailed user profile. This includes the identification o…
Information et communication territoriales. Approches croisées
2014
International audience; Il s’agit ici, sur la base d’une expérience de recherche au sein d’un réseau scientifique international, de s’interroger sur les multiples approches des sciences de l’information et de la communication territoriales que l’on peut y rencontrer. Cette expérience recouvre les échanges, passés comme actuels, entre plusieurs acteurs de la recherche comme des professionnels en activité, tous impliqués dans des démarches d’intelligence territoriale, liées à l’action sociale, sanitaire, culturelle, à l’aménagement du territoire, ou encore aux politiques publiques au sens large.
Approche critique : quelle appropriation par les SIC ?
2017
Sprung up from the confluence and the interaction between different disciplines, information and communication sciences have been enriched by international critical thoughts from which they borrowed a large number of concepts. However, the genesis and the critical function of theses paradigms are not always examined. By exploring the appropriation processes of the most important critical schools of thought within the discipline, the author contributes to enliven a space for discussion about the adoption of a critical perspective in communication studies. Social critique; Critical perspective on communication; History of information and communication sciences; Critical Theory; Cultural studi…
The life of signs within communication : towards communicational semiotics
2013
Le troisième numéro de la Revue Française des Sciences de l’Information et de la Communication, conforme à notre schéma éditorial de départ et à notre protocole d’évaluation, installe maintenant notre production scientifique dans la durée. Notre grand dossier, coordonné par Jean-Jacques Boutaud et Karine Berthelot-Guiet, inaugure un débat théorique important sur un sujet qui a largement valeur de programme : La vie des signes au sein de la communication : vers une sémiotique communicationnelle. Notre rubrique Emergences réunit des contributions sur ces grands objets qui préoccupent aujourd’hui nombre de chercheurs dans notre communauté : la question du genre, la vie privée et les médias soc…
Teoría de la educación : educación y cultura en la sociedad de la información
2008
La educación para la igualdad requiere de la implicación de todas y cada una de las agencias que participan de este proceso. En este trabajo hemos querido conocer en qué medida los videojuegos más vendidos y utilizados por la población infantil y juvenil transmiten contenidos que contribuyen a su educación para la igualdad o, por el contrario, la dificultan. Para ello hemos analizado el contenido de los diez videojuegos más jugados por menores y adolescente, atendiendo a los valores y disvalores que transmiten, centrando nuestra atención en la representación de modelos de mujer y roles de género. Por último, hemos tratado de establecer una serie de conclusiones y orientaciones pedagógicas, …
Biomineralizations: insights and prospects from crustaceans.
2011
19 pages; International audience; For growing, crustaceans have to molt cyclically because of the presence of a rigid exoskeleton. Most of the crustaceans harden their cuticle not only by sclerotization, like all the arthropods, but also by calcification. All the physiology of crustaceans, including the calcification process, is then linked to molting cycles. This means for these animals to find regularly a source of calcium ions quickly available just after ecdysis. The sources of calcium used are diverse, ranging from the environment where the animals live to endogenous calcium deposits cyclically elaborated by some of them. As a result, crustaceans are submitted to an important and energ…
Biogeography and ecology of geographically distant populations of sibling Cryptocephalus leaf beetles
2020
Different populations of two closely related species, Cryptocephalusflavipes and C. bameuli, from western (Alps, Apennines and Pyrenees) and central Europe (Poland, Ukraine and Pannonia) were analysed. On the basis of DNA sequences from two genes, cox1 and ef1-alpha, distinctiveness of both species was confirmed. Nevertheless, possible hybrids were identified in Carpathian mountains. We found a significant genetic differentiation among populations of C. flavipes and C. bameuli from distant regions but a high genetic similarity between populations of C. bameuli from north and south of the Carpathians. Demographic estimates suggest a past population expansion in the case of C. bameuli and a r…
An updated checklist of Recent ostracods (Crustacea: Ostracoda) from inland waters of Sicily and adjacent small islands with notes on their distribut…
2020
Because of its position in the middle of the Mediterranea Sea and a complex geological history that has promoted repeated waves of biological colonization, Sicily (Southern Italy) is of particular interest from a biogeographical perspective. A number of previous investigations, dating back as far as the end of the 19th century, have contributed to gather information about the occurrence of Recent non-marine ostracods in Sicily, making this region one of the most intensively studied areas of the Central Mediterranean. Published data on ostracod distributions have been integrated through an extensive field survey on mainland Sicily and surrounding small islands and archipelagos. Altogether, 2…