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...

acetic acid has been applied as an efficient catalyst and a green solvent for the two–component condensation reaction consisting of benzaldehyde, 2-amino-benzamide. the advantages of this protocol was excellent yield, short reaction time, mild reaction conditions, higher availability, low costs, more environmentally friendly, lack of need for column chromatography and simple work-up procedure. ...

the reaction of ch₃nh₂ with o₂ on the singlet potential energy surfaces (pes) was carried out using the b3lyp, ccsd(t) and g3b3 theoretical approaches along with 6-311++g(3df,3pd) basis set. the suggested mechanism for the title reaction consists of one pre-reactive complex. from the pre-reactive complex, nine types of products, ch2nh+h2o2, ch3nh+ooh, nh2cho+h2o, ch2nho+h2o, nh3+hcooh, ch2nh+h2...

This paper studies safety attitudes, their relationship with safety training behaviour, and generalised self-efficacy. From a sociotechnical perspective, training programs might be used as a mechanism for enhancing attitudes, especially to improve safety and occupational health. Also, self-efficacy allows to enhance training effectiveness. The aim of this paper is to validate a safety attitude ...

This paper addresses the problem of following a vehicle with varying acceleration in a comfortable and safe manner. Our architecture consists of a nominal controller (here: model predictive control) and a safety controller. Although model predictive control attempts to keep a safe distance, it cannot formally guarantee it, due to the assumptions on the behavior of the leading vehicle. We addres...

This article describes the role states could play in a national effort to measure and monitor the public health safety net. The authors developed a data collection framework using information from five states on two components of the safety net: structure and demand. Because states are the primary vehicle for access expansions and programs to care for the poor, the authors suggest that they be ...

Health care providers are increasingly adopting EHR and expecting EHR to reduce medical errors and improve patient safety. However, the findings on the effect of EHR on patient safety have been mixed. In this paper, we investigate the factors moderating the relationship between EHR and patient safety. More specifically, we propose that EHR characteristics, including EHR certification, usability...

aims: fatalistic employees take serious risks because they have limited knowledge of risks and accidents, leading them to under estimate the possibility of their occurrence. this research examined the effectiveness of safety training on changing employees’ fatalism with attention to the mediating role of attitude toward safety issues. methods: 204 employees was selected according to the stratif...

throughout history, many different cultures have recognized the potential use of garlic for prevention and treatment of different diseases. recent studies support the effects of garlic and its extracts in a wide range of applications. these studies raised the possibility of revival of garlic therapeutic values in different diseases. different compounds in garlic are thought to reduce the risk f...