نتایج جستجو برای: riding license
تعداد نتایج: 61179 فیلتر نتایج به سال:
OBJECTIVE To compare the distribution and observation of helmet use patterns among 4 common childhood leisure activities-bicycle riding, in-line skating, skateboarding, and scooter riding-in a setting with no helmet use legislation. DESIGN A cross-sectional, unobtrusive, direct observation of children engaged in 1 of the 4 activities was conducted during an 8-week period. SETTING Eight comm...
BACKGROUND There are many obvious health benefits to riding, including developing a strong core and legs, but there are also many less obvious benefits, such as increased confidence and introspection. Few studies have addressed the effects of horseback riding on children and the mechanisms underlying how riding affects humans. We examined the effects of horseback riding on the ability to distin...
A series of pelvic and acetabular injuries caused by horse riding accidents is reported. The importance of wearing appropriate protective clothing when riding is emphasised.
advocates of horse riding claimed they had been discriminated against because they were no longer allowed in some areas they had previously used. Many non-equestrian residents were vocal in their disapproval of horse riding being permitted anywhere in the park, largely because of perceived threats to conservation values. Resolution of the debate was hampered by a perceived lack of scientific ev...
This paper proposes to use the method of edge detection, morphology, and dynamic image thickening for license plate extraction from images. In the proposed algorithm, a different thickening is used for rear and front parts of the image; besides, to increase the segmentation rate, determination of the license plate frame using standard deviation in the vertical histogram diagram is suggested. Fu...
Hazard perception is considered one of the most important abilities in road safety. Several efforts have been devoted to investigating how it improves with experience and can be trained. Recently, research has focused on the implicit aspects of hazard detection, reaction, and anticipation. In the present study, we attempted to understand how the ability to anticipate hazards develops during tra...
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