[Detoxification after use of new psychoactive substances purchased online].

Background: The knowledge base on new psychoactive substances (NPS) is generally limited. This introduces new challenges and increased unpredictability in substance abuse treatment.

Case Presentation: A man in his thirties was submitted to detoxification after reportedly using flubromazolam, a high potency designer benzodiazepine, which he had purchased on the dark web.

Gamma radiation at a human relevant low dose rate is genotoxic in mice.

Even today, 70 years after Hiroshima and accidents like in Chernobyl and Fukushima, we still have limited knowledge about the health effects of low dose rate (LDR) radiation. Despite their human relevance after occupational and accidental exposure, only few animal studies on the genotoxic effects of chronic LDR radiation have been performed. Selenium (Se) is involved in oxidative stress defence, protecting DNA and other biomolecules from reactive oxygen species (ROS).

Quality assurance in radiotherapy on a national level; experience from Norway: the KVIST initiative.

Background And Purpose: In radiotherapy (RT), there are high requirements for quality assurance (QA) in all the steps of the process. Development of QA systems are demanding in terms of financial and human resources. A national QA programme (KVIST) has been established in Norway to facilitate implementation of QA activity on hospital level.

Comparison of high-dose-rate (192)Ir source strength measurements using equipment with traceability to different standards.

Purpose: According to the American Association of Physicists in Medicine Task Group No. 43 (TG-43) formalism used for dose calculation in brachytherapy treatment planning systems, the absolute level of absorbed dose is determined through coupling with the measurable quantity air-kerma strength or the numerically equal reference air-kerma rate (RAKR). Traceability to established standards is important for accurate dosimetry in laying the ground for reliable comparisons of results and safety in adoption of new treatment protocols.