BACKGROUND: Previous research indicates the start of primary school (4-5-year-old) as an essential period for the development of children's physical activity (PA) patterns, as from this point, the age-related decline of PA is most often observed. During this period, young children are exposed to a wider …

Background: In the city of Maastricht in the Netherlands, a highway crossing several deprived neighborhoods was tunneled in 2016. The vacant space on top of this tunnel was redesigned and prioritized for pedestrians and cyclists. The aim of this study was to evaluate the effect of this major infrastructural …

Introduction: Previous longitudinal studies indicate that physical activity (PA) significantly declines from primary-to secondary school, and report both changes in individual and environmental determinants of PA. In order to understand this transition and to prevent this negative trend, it is important …

Currently, in a fast-growing electronic age, digital presence is becoming a necessity in order to maintain pace with the current technological evolution. In addition, increasing labor costs due to governmental regulations is challenging McDonalds’ scheme of providing low priced meals. Resorting to technology …

The objective of this study was to assess relationships between children's physical environment and afterschool leisure time physical activity (PA) and active transport. Methods: Children aged 10-12 years participated in a 7-day accelerometer and Global Positioning Systems (GPS) protocol. Afterschool …

The Global Positioning System has long been a great tool for militaryand, of course, civilianactivities, but the militarys heavy reliance on it also makes it a likely target. Due to the character of the satellite navigation system, security vulnerabilities exist that threaten information continuity and …

Since the introduction of the Global Positioning System (GPS), many civil and military applications have become dependent on the continuous availability of GPS-derived position and timing information. Examples comprise financial transaction systems, electrical power grids and combat management systems. …

Global Navigation Systems, like GPS, are widely used for positioning, timing and many other topics in both the civil and military world. Such a system in an extraordinarily useful utility that is inexpensive to use, but on the other hand, it is a technology that introduces major and often times poorly …

Er is onderzoek gedaan naar een alternatieve lokalisering methode op basis van het Simultaneous Localization and Mapping (SLAM) principe. Dit is een methode waarbij een 3D model van de bezochte omgeving wordt gebouwd en waar vervolgens het systeem in gelokaliseerd kan worden. Hiervoor is een sensor nodig …

Global Navigation Satellite Systems (GNSS) currently dominate the Positioning, Navigation and Timing (PNT) community and there are no signs that this will change in the near future. But for many years the weeknesses of GNSS have been well known and besides research into GNSS a lot of research into back …