We propose an off-line roaming authentication protocol which not only the server in a foreign network authenticates any roaming user without the involvement of the home network, but also the anonymity of the user is preserved. That is, the user can prove his/her roaming legality without letting the server know his/her real identity. We employ the ID-based signature technique and secret sharing ...

The mobile data roaming market in the European Union is characterized by a lack of competition which is one of the main reasons for wholesale and retail prices being well above cost-based prices. In 2012, the European Commission has enacted new regulatory measures such as allowing for more players competing in the wholesale data roaming market and forcing mobile network operators to unbundle ro...

Synopsis Dogs (Canis familiaris) were the first domesticated species and, at an estimated population of 1 billion individuals, are globally ubiquitous today. Describing tremendous morphometric diversity and evolutionary origins dogs is a scientific endeavor that predates Darwin, yet our interdisciplinary understanding just beginning. Here, I present global trends in dog abundance, activity, hea...

Numerous studies have described human-to-human airborne and contact-based transmissions of SARS-CoV-2, the epidemiological agent coronavirus disease 2019 (COVID-19). In this review article, we assess COVID-19 reverse-zoonotic transmission from humans-to-household pets zoonotic pets-to-humans, animal-to-animal between cohoused including cats, dogs, ferrets. in mink, ducks, pigs, chickens, ectopa...

This paper is focused on the secure roaming problematic in wireless automation applications. Description of a roaming procedure and security issues is presented along with the newest techniques for fast roaming according to prepared network roaming standard IEEE802.11r and security trends defined in IEEE802.11i. Methods for minimizing handoff delay for wireless automation applications and requi...