In formal argumentation, grounded semantics is well known for yielding exactly one unique extension. Since grounded semantics has a very sceptical nature, one can ask the question whether it is possible to define a unique extension semantics that is more credulous. Recent work of Dung, Mancarella and Toni proposes what they call ideal semantics, which is a unique extension semantics that is mor...

You may have seen the film Microcosmos, produced in 1996 by the French biologists Claude Nuridsany and Marie Perrenou. It does not star humans, but much smaller creatures, mostly insects. The filmmakers’ magnifying camera transposes the viewer into the world of these organisms. For me, Microcosmos is not an ordinary naturalist documentary; it is an exercise in metaphysics. One sequence in the f...

Assessments were made of the influence of several microclimatic variables on the availability of third-stage larvae of Ostertagia ostertagi, on pasture herbage. Variables most closely related to recovery of larvae from the lower herbage samples were: maximum air, mat and dung temperatures. Recovery of larvae from the upper portion of the herbage was closely correlated with dung temperature, sam...

In this paper we present a generalization of the ASPIC argumentation system, where a rule can be associated with a probability. This probability expresses uncertainty about whether or not the particular rule is active. We call this system p-ASPIC. The uncertainty about rules carries over to uncertainty about whether or not a particular argument is active. We generalize the usual Dung-style abst...

ASN-5: A Practical Adaptive Scheme for Enhancing Network Stability in Mobile Ad-hoc Wireless Networks Le The Dung, Sue Hyung Ha, Beongku An Hongik University, Korea ASN-6 : Freshness Preserving Hierarchical Key Agreement Protocol over Hierarchical MANETs Hyunsung Kim Kyungil University, Korea ASN-7 : A Symmetric Hierarchical Clustering Related to the Sink Position and Power Threshold for Sensor...

The discovery of Culicoides kanagai in South Africa represents a new record for this species. The female is redescribed, and the male is described for the first time. Culicoides (A.) dasyops Clastrier, 1958 is shown to be closely related to it but C. (A.) alticola is only superficially related. Short notes on the larval habitat of C. kanagai, the dung of the African elephant, Loxodonta africana...

Self-medication by great apes to control intestinal parasite infections has been documented at sites across Africa. Chimpanzees (Pan troglodytes) swallow the leaves of certain plant species whole, without chewing. Previous studies demonstrated a relationship between chimpanzee leaf swallowing and expulsion of nematode worms (Oesophagostomum sp.) and tapeworms (Bertiella sp.) in dung. We investi...

Selective defecation and selective foraging are two potential antiparasite behaviors used by grazing ungulates to reduce infection by fecal–oral transmitted parasites. While there is some evidence that domestic species use these strategies, less is known about the occurrence and efficacy of these behaviors in wild ungulates. In this study, I examined whether wild antelope use selective defecati...