Airports all over the world are becoming busier and many of them are facing capacity problems. The actual airport capacity strongly depends on the efficiency of the resource utilisation. Although simultaneously handling all of the problems may result in more effective resource utilisation, historically different types of airport resources have been handled independently. Despite introducing new...

The Work Ability Index (WAI) is a well-accepted questionnaire designed to assess an individual’s work ability. However, most research with WAI has focused on occupational populations with physical demands at work. The purpose of this study is to explore the value of WAI as screening instrument among professionals in a Dutch university. Based on database data about absenteeism, questionnaire dat...

Two formal models for description of timing attacks are presented, studied and compared with other security concepts. The models are based on a timed process algebra and on a concept of observations which make visible only a part of a system behaviour. An intruder tries to deduce some private system activities from this partial information which contains also timing of actions. To obtain realis...

Using the canonical principal-agent setting with adverse selection, we study the implications of honesty when it requires pre-commitment. Within a two-period hidden information problem, an agent learns his match with the assigned task in period 2 and, if honest, reveals it to the principal if he has committed to it. The principal may offer a menu of contracts to screen ethics. Both honest and d...

U-turn maneuver is a special taxiing behavior on the ground. This paper studied the behavior and aimed to research the problem of position and attitude during the movement. From the perspective of airport tower control simulation, the calculation methods that the aircraft did U-turn maneuver under the nonholonomic constraints were proposed. According to the real geometrical constraints and kine...

The American Heart Association (AHA) has recommended a 12element questionnaire for pre-participation screening of athletes, in order to reduce and hopefully prevent sudden cardiac death in young athletes. This screening procedure is widely used throughout the United States, but its efficacy for discriminating Normal from Non-normal heart condition is unclear. As part of a larger study on cardio...

In the next few years, Brazil will host international events such as the 2014 FIFA World Cup and the 2016 Olympics Games. Given the worldwide appeal of these events, local authorities in Brazil expect the country will have around 1.6 million visitors arriving at its airports (1 million for the Olympics and 600 thousand for the World Cup). Therefore, these events will put to test the robustness ...

Security competitions have become a popular way to foster security education by creating a competitive environment in which participants go beyond the effort usually required in traditional security courses. Live security competitions (also called “Capture The Flag,” or CTF competitions) are particularly well-suited to support handson experience, as they usually have both an attack and a defens...

E-services are not sustainable, unless specifically designed for sustainability along four dimensions (4D): economical, technical, environmental, and social. Designing 4D-sustainable eservices is very complex, mainly due to the many challenges in communicating and assessing sustainability. This paper proposes a conceptual model that identifies the core elements of 4Dsustainable e-services. Our ...

In this paper, we investigate the optimal selling scheme for a capacity-constrained seller who faces both aggregate demand and individual valuation uncertainties. As each consumer privately observes an initial estimate prior to the transactions and an updated information post-purchase, the problem exhibits the sequential screening feature and return policy emerges as part of the optimal selling...