Rule-Based Application Development using Webdamlog

We present the WebdamLog system for managing distributed data on the Web in a peer-to-peer manner. We demonstrate the main features of the system through an application called Wepic for sharing pictures between attendees of the sigmod conference. Using Wepic, the attendees will be able to share, download, rate and annotate pictures in a highly decentralized manner. We show how WebdamLog handles heterogeneity of the devices and services used to share data in such a Web setting. We exhibit the simple rules that define the Wepic application and show how to easily modify the Wepic application.Comment: SIGMOD - Special Interest Group on Management Of Data (2013

Factoriality of representations of the group of paths on SU(n)

AbstractFactoriality in the cyclic component of the vacuum for the energy representation of SU(n)-valued paths groups is proved. The main tool is a lemma concerning generic pairs of Cartan subalgebras in the Lie algebra su(n) of SU(n) groups

Irreducibility and reducibility for the energy representation of the group of mappings of a Riemannian manifold into a compact semisimple Lie group

AbstractThe irreducibility of the energy representation of the group of smooth mappings from a Riemannian manifold of dimension d ⩾ 3 into a compact semisimple Lie group is proven. The nonequivalence of the representations associated with different Riemann structures is also proven for d ⩾ 3. The case d = 2 is examined and irreducibility and nonequivalence results are also given. The reducibility in the case d = 1 is pointed out (in this case the commutant contains a representation equivalent with the energy representation)

Les procédés d’association du public aux décisions prises par les administrations locales

Le code des relations entre le public et l’administration n’a pas été conçu comme spécialement applicable aux administrations locales et, encore moins, comme devant permettre un développement de l’association du public. Il en ressort une lecture troublée de la matière, le cadre nouveau offert par le code portant en lui un risque d’amoindrissement de cette association au niveau local

Les procédés d’association du public aux décisions prises par les administrations locales

Le code des relations entre le public et l’administration n’a pas été conçu comme spécialement applicable aux administrations locales et, encore moins, comme devant permettre un développement de l’association du public. Il en ressort une lecture troublée de la matière, le cadre nouveau offert par le code portant en lui un risque d’amoindrissement de cette association au niveau local

Function of trunk-mediated “greeting” behaviours between male African elephants: insights from choice of partners

This is the final version. Available from MDPI via the DOI in this record. Due to the sensitive nature of reporting on elephant locations and numbers, the data that support the findings of this study are available on reasonable request from the corresponding author.A common behavioural interaction between male African elephants is for an actor to direct his trunk to contact a same sex conspecific’s mouth, temporal gland, or genital region. Such behaviours are often referred to as “greetings”. Along with its inherent tactile element, these behaviours also likely provide olfactory information to actors concerning aspects of the target’s phenotype, including sexual status, feeding history, individual identity, and emotional state. Here, we explore whether the age and novelty of potential interactors affect the choice of individuals targeted by male African elephants for these trunks to scent emitting organ (SEO) behaviours at social hotspots in a male-dominated area. Male elephants of all ages, except older adolescents aged 16–20 years, preferentially targeted elephants of the same age class for trunk-to-SEO behaviours. Elephants younger than 26 years did not direct trunk-to-SEO behaviours to mature bulls (26+ years) more than expected by chance, suggesting these behaviours are not primarily used for younger males to establish contact with, or obtain information from or about older, more experienced individuals. We also found no evidence that males directed these behaviours preferentially to new individuals they encountered at male aggregations (compared to those they arrived in groups with), suggesting these behaviours are not primarily employed by males as a reunion display to establish relationships between new individuals or update relationships between familiar individuals separated over time. Age-mates may be preferentially targeted with these behaviours as a means to facilitate further interaction with partners (e.g., for sparring activity), or as a safe way to assess relative dominance rank in similarly aged and hence, size and strength, matched dyads. Our results suggest male African elephants use close contact trunk-to-SEO behaviours continuously over time, to facilitate positive relationships, test willingness to interact, and assess aspects of phenotype, between males occupying the same ecological space.Leverhulme TrustElephants for AfricaThe Explorers ClubWilderness Wildlife TrustIDEAWIL