During the COVID-19 pandemic, access to space has been strictly regulated and restricted. Many of us feel acutely disconnected from our relationships, while at same time new forms (virtual) intimacies have become ubiquitous. In pandemic present, nearly all interpersonal relations are now characterised by a double absence that is concrete material, also emotional felt. This article offers theore...

The problem of exchanging knowledge bases from a source signature to a target signature connected through a mapping has recently attracted attention in knowledge representation. In this paper, we study this problem for knowledge bases and mappings expressed in OWL 2 QL, one of the profiles of the standard Web Ontology Language OWL 2. More specifically, we consider the membership and non-emptine...

The study of decompositions of sets in U, n ^ 1, into disjoint, mutually isometric subsets has a long and distinguished history. In 1928 J. von Neumann [2] proved that an interval in U (with or without endpoints) is decomposable into Ko disjoint sets which are mutually isometric under translations. In 1951 W. Gustin [1] proved that no such decomposition into n, 2 ^ n < No, sets is possible. A b...

Global Health Action: surviving infancy and taking first steps Á the window is open, new challenges for existing niche may enlighten global health W ith reference to the editorial 'Global Health Action: surviving infancy and taking first steps', we commend the success of the innovations in this newly established open-access global health journal, which sets a challenge to the world of scholars ...

Anesthesia is becoming safer over the past decades. This process was driven by the development of new anesthetics and the establishment of modern safety concepts. On the other hand anesthetists benefit from profound pathophysiological knowledge and the competence of translating patient specific conditions into individual perioperative risk. But in case of rare diseases this concept is often lac...