The computer industry has defined the IEEE 802.16 family of standards that will enable mobile devices to access a broadband network as an alternative to digital subscriber line technology. As the mobile devices join and leave a network, security measures must be taken to ensure the safety of the network against unauthorized usage by encryption and group key management. IEEE 802.16e uses Multica...

In most cases in a safety analysis the in uences of security problems are omitted or even forgotten. Because more and more systems are accessible from outside the system via maintenance interfaces, this missing security analysis is becoming a problem. This is why we propose an approach on how to extend the safety analysis by security aspects. Such a more comprehensive analysis should lead to sy...

Systems engineering, or engineering in general, has long been relying on document-centric approaches. Switching to model-based systems MBSE for short, extensively discussed over the past three decades. Since about two decades, commonly associated with modeling language SysML (Systems Modeling Language), which offers a standardized notation, not methodology of using it. needs therefore be suppor...

the united states and russia are two important actors in international system. the geography of their national interests is global and extra-regional; therefore, the quality of their relationship affects the security of international system. it can create security or can cause insecurity in international system. after the disintegration of soviet :union: there has been more interaction between ...

Safety and security are closely related subtypes of defensibility, another quality factor in a quality model. The close similarity between these two quality factors implies that a taxonomy of safety-related requirements is a good place to begin when developing an analogous taxonomy of security-related requirements. The resulting taxonomy consists of pure security requirements specifying minimum...

Vehicular Ad-hoc Networks (VANETs) can make roads safer, cleaner, and smarter. It can offer a wide range of services, which can be safety and non-safety related. Many safety-related VANETs applications are real-time and mission critical, which would require strict guarantee of security and reliability. Even non-safety related multimedia applications, which will play an important role in the fut...

abstract   background: evaluate the adherence to facility management and safety standards among governmental and non-governmental hospitals in shiraz, iran.   methods: in this cross sectional study, 22 hospitals of the 33 hospitals in shiraz, iran including 13 governmental and 9 non-governmental facilities were surveyed. a 74-item self-administered questionnaire was used. collected data were en...

the study aimed to check the mediation role of cognitive emotional regulation for emotional safety and emotional problems such as stress, anxiety and depression. the sample of this study consisted of 240 high school students in fasa, fars (120 girls and 120 boys). the method of sampling was multistage cluster sampling. the mean age for the sample was 16.3 years old with sd=1.5. the scales that ...

Modern vehicles consist of many interconnected, software-based IT components which are tested very carefully for correct functional behavior to avoid safety problems, e.g. that the brakes suddenly stop working. However, in contrast to safety testing systematic testing against potential security gaps is not yet a common procedure within the automotive domain. This however could eventually enable...