Accuracy of prehospital diagnosis and triage of a Swiss helicopter emergency medical service

Helicopter emergency medical services (HEMSs) have become a standard element of modern prehospital emergency medicine. This study determines the percentage of injured HEMS patients whose injuries were correctly recognized by HEMS physicians.

Der Beitrag der Theorie subjektiver Werterwartung und anderer RC-Theorien zur Erklärung der herkunftsbedingten Bildungschancen und Bildungsungleichheit. Eine Antwort auf den Diskussionsbeitrag von Max Haller

In seiner kritischen Würdigung meines Beitrags über den Zusammenhang von Klassenlage, Bildungsentscheidung und Bildungsungleichheit versucht Haller kritische Aspekte der angewandten RC-Theorien zu thematisieren. Dabei wird offenkundig, dass seine Einwände auf Missverständnissen theoretischer und methodisch-statistischer Natur beruhen.

RC-NDN: Raptor Codes Enabled Named Data Networking

Information-centric networking (ICN) has been proposed to cope with the drawbacks of the Internet Protocol, namely scalability and security. The majority of research efforts in ICN have focused on routing and caching in wired networks, while little attention has been paid to optimizing the communication and caching efficiency in wireless networks. In this work, we study the application of Raptor codes to Named Data Networking (NDN), which is a popular ICN architecture, in order to minimize the number of transmitted messages and accelerate content retrieval times. We propose RC-NDN, which is a NDN compatible Raptor codes architecture. In contrast to other coding-based NDN solutions that employ network codes, RC-NDN considers security architectures inherent to NDN. Moreover, different from existing network coding based solutions for NDN, RC-NDN does not require significant computational resources, which renders it appropriate for low cost networks. We evaluate RC-NDN in mobile scenarios with high mobility. Evaluations show that RC-NDN outperforms the original NDN significantly. RC-NDN is particularly efficient in dense environments, where retrieval times can be reduced by 83% and the number of Data transmissions by 84.5% compared to NDN.