We present a mathematical model, called Asynchronous Broadcast Networks (ABN), of distributed computation based on topology-dependent and asyn-chronous communication. Our model combines three main features: a graph representation of a network configuration decoupled from the specification of individual process behavior, a topology-dependent semantics of synchronization, the use of local mailbox...

Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen Ø, Denmark Dept. of Biology, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen Ø, Denmark Biodiversity & Conservation, Department of Bioscience, Aarhus University, Grenåvej 14, DK-8410 Rønde, Denmark Centre for GeoGenetics, Natu...

The element diffusion, described by Michaud (1970), is now recognized to occur in all kinds of stars. We attempt to give evidence of signatures of helium diffusion below the convective zone by the way of asteroseismology.

BACKGROUND Epidemiologic studies have classified 18 genotypes of the human papillomavirus (HPV) as (probably) high-risk (HR) based on their association with cervical cancer, i.e., HPV 16, 18, 26, 31, 33, 35, 39, 45, 51, 52, 53, 56, 58, 59, 66, 68, 73, and 82. Given the fact that certain HR HPV types confer an increased risk of cervical (pre)cancer, type-specific identification might aid clinica...

The possibility that the Avalon Platform, where the Avalonian lithotectonic belt is best developed, was involved in late Paleozoic displacement was tested by paleomagnetic study of red sandstones of the Upper Devonian Terrenceville Formation of eastern Newfoundland. Two magnetization directions were identified by thermal demagnetization analysis of 60 oriented samples from 10 sites: a high bloc...