IP anycast is a commonly used technique to share the load of a variety of global services. For more than one year, leveraging a lightweight technique for IP anycast detection, enumeration and geolocation, we perform regular IP monthly censuses. While this paper provides a brief longitudinal study of the anycast ecosystem, we make all our datasets (raw measurement from PlanetLab and RIPE Atlas),...

We investigate eigenvalue problems for the planar Helmholtz equation in open systems with a high order of rotational symmetry. The resulting solutions have similarities with the whispering gallery modes exploited in photonic micro-resonators and elsewhere, but unlike these do not necessarily require a surrounding material boundary, with confinement instead resulting from the geometry of a serie...

The present paper describes the approach and preliminary results from the research project EUX2010SEC. The project works closely with Voice over IP (VoIP) companies and users. The project aims at providing better security of open source VoIP installations. The work towards this goal is organized by gathering researchers and practitioners around scientific activities that range from security mod...

This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. Abstract This document describes an IRIS registry schema for ...

Incontinentia pigmenti (IP) is a rare X linked genetic disorder, which predominantly affects females. The mutations are usually lethal in males. Two male cases are presented; a genetic mosaic for the common IP deletion and another in whom the genetic abnormality has not yet been characterised. Emphasis is placed on the ocular features present in this disorder and in particular a novel corneal f...

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