Car surfing is a dangerous new pastime for American youth. Car surfing is an activity that is defined as standing (or lying) on a vehicle while it is being driven. This activity frequently results in severe injuries that often require significant surgical intervention. Despite its destructive nature, however, there are many Internet sites that encourage this behavior and view it as amusing. As ...

Implicit learning was investigated in two experiments involving a complex motor task. Participants were required to balance on a stabilometer and to move the platform on which they were standing to match a constantly changing target position. Experiment 1 examined whether a segment (middle third) that was repeated on each trial would be learned without participants becoming aware of the repetit...

From a user’s perspective, hypertext links on the web form a directed graph between distinct information sources. We investigate the effects of discovering “backlinks” from web resources, namely links pointing to the resource. We describe tools for backlink navigation on both the client and server side, using an applet for the client and a module for the Apache web server. We also discuss possi...

OBJECTIVE to analyze the prevalence of musculoskeletal injuries of surfers from the Paraná's seacoast. METHODS Sixty men (27 ± 6 years) completed a surf semi structured questionnaire (category, time of daily practice, frequency and exercises performed before and/or after surfing) and characteristics of injuries induced by this sport. A descriptive analysis of the data on distribution of the r...