If there were a fifth force in the dark sector and dark matter (DM) particles interacted nongravitationally with ordinary matter, quantum corrections generically would lead to a fifth force in the visible sector. We show how the strong experimental limits on fifth forces in the visible sector produce bounds on the cross section for DM detection and the strength of the fifth force in the dark se...

Driver hypovigilance (‘falling asleep at the wheel’) is a major cause of road accidents, accounting for up to 20% of serious accidents on motorways and monotonous roads in Great Britain, whereas 56,000 crashes are stated by the US police annually, having as primary cause the driver hypovigilance, according to NHTSA studies. The European Commission Road Safety strategy identifies driver hypovigi...

The "Timed Get-up-and-Go" (TGUG) test measures the overall time to complete a series of functionally important tasks. In the "Expanded Timed Get-up-and-Go" (ETGUG) test, times for the component tasks are measured using a multimemory stopwatch. Results from the ETGUG test were compared to those from the TGUG test on three groups of subjects: nonimpaired young, nonimpaired elderly, and elderly su...

OBJECTIVE To analyse the metric properties of the Timed Get up and Go-Modified Version Test (TGUGM), in risk assessment of falls in a group of physically active women. METHODS A sample was constituted by 202 women over 55 years of age, were assessed through a crosssectional study. The TGUGM was applied to assess their fall risk. The test was analysed by comparison of the qualitative and quant...

This paper presents statistical investigations regarding the value of the trend concept and calendar effects for prediction of stock returns. The examined data covers 207 stocks on the Swedish stock market for the time period 1987-1996. The results show a very weak trend behavior. The massive better part of returns falls into a region, where it is very difficult to claim any correlation between...

BACKGROUND Changes in postural sway and gait patterns due to simultaneously performed cognitive (CI) and/or motor interference (MI) tasks have previously been reported and are associated with an increased risk of falling in older adults. OBJECTIVE The objectives of this study were to investigate the effects of a CI and/or MI task on static and dynamic postural control in young and elderly sub...

Each year thousands of children are injured by falling from shopping carts. Buckling children into the seats of shopping carts could prevent many of these injuries. A combined reversal and multiple baseline across settings design was used to evaluate the impact of verbal prompts on shopping cart safety-belt use in two stores. Safety-belt use increased following implementation of the verbal prom...

OBJECTIVE Fear of falling can lead to restricted activity, but little is known about how this fear affects different aspects of people's lives. This study examined the relationship between fall-related efficacy (i.e., confidence or belief in one's ability to perform activities without losing balance or falling) and activity and participation. METHOD We conducted a meta-analysis of studies com...

This article reports mixed results about the impacts of liberalisation in European network industries. Telecommunications prices have fallen and converged across EU-15, but electricity and gas prices have either increased or diverged. Productivity has increased, but mainly as a result of falling employment in absolute and relative terms. Liberalised industries are still characterised by high le...