نتایج جستجو برای: riding license

تعداد نتایج: 61179  

Journal: :Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention 2015
Ruth A Shults Bethany A West

BACKGROUND National estimates of all-terrain vehicle (ATV) riding patterns among youth in the USA are lacking. METHODS We analysed the 2011 YouthStyles survey to estimate the proportion of 12-17 year olds in the USA who had ridden an ATV at least once during the past 12 months and summarise their patterns of helmet use. RESULTS Of the 831 youth respondents, an estimated 25% reported riding ...

Journal: :The Medical journal of Malaysia 2000
S Kulanthayan R S Umar H A Hariza M T Nasir S Harwant

Motorcyclists make up the largest group of fatalities on Malaysian roads, majority succumbing to head injuries despite the compulsory safety helmet laws in the country. One possible reason for this high fatality is improper usage of safety helmets. This study examines the compliance of proper safety helmet use in motorcyclists in a typical Malaysian town. Five hundred motorcyclists were studied...

2007
Jiwoong Shin

T free-riding problem occurs if the presales activities needed to sell a product can be conducted separately from the actual sale of the product. Intuitively, free riding should hurt the retailer that provides that service, but the author shows analytically that free riding benefits not only the free-riding retailer, but also the retailer that provides the service when customers are heterogeneo...

2013
Shahrzad Bazargan-Hejazi Fereshteh Zamani-Alavijeh David Hindman Esa Mohamadi Mohsen Bazargan

BACKGROUND Road traffic injuries, especially those involving motorcycles, are a particular concern in Iran. We aimed to identify the specific cognitive dissonances and consonances associated with risky riding among Iranian motorcyclists. METHODS This was a grounded theory qualitative study of male motorcyclists who were ≥ 18 and were living in one of the three cities of Tehran, Isfahan and Ah...

Journal: :Electronic Commerce Research and Applications 2011
Hung-Chang Chiu Yi-Ching Hsieh Jinshyang Roan Kuan-Jen Tseng Jung-Kuei Hsieh

In multichannel environments, consumers can move easily among different channels. They engage in cross-channel free-riding when they use one retailer’s channel to obtain information or evaluate products and then switch to another retailer’s channel to complete the purchase. Cross-channel free-riding erodes profits and is one of the most important issues that firms face in the multichannel era. ...

2002
Ramayya Krishnan Michael D. Smith Zhulei Tang Rahul Telang

Peer-to-peer networks have emerged as a popular alternative to traditional client-server architectures for the distribution of information goods. Recent academic studies have observed high levels of free-riding in various peer-to-peer networks, leading some to suggest the imminent collapse of these communities as a viable information sharing mechanism. Our research develops an analytic model to...

2013
Judy E. Scott Jae Hoon Choi

Wikis are interactive Web 2.0 tools that enable collaboration and knowledge sharing. Wiki-enabled collaboration is ideal in an educational setting, yet is prone to free-riding. This study examined the impact of the relational social capital of undergraduate students on their wiki usage and free-riding in a group project. Preliminary findings reveal that characteristics of relational social capi...

2013
Anna Alberini Will Gans Charles Towe

We use a unique dataset that combines the responses from an original survey of households, information about the structural characteristics of their homes, utility-provided longitudinal electricity usage records, plus utility program participation information, to study the uptake of energy efficiency incentives and their effect on residential electricity consumption. Attention is restricted to ...

Journal: :Journal of autism and developmental disorders 2009
Margaret M Bass Catherine A Duchowny Maria M Llabre

This study evaluated the effects of therapeutic horseback riding on social functioning in children with autism. We hypothesized that participants in the experimental condition (n = 19), compared to those on the wait-list control (n = 15), would demonstrate significant improvement in social functioning following a 12-weeks horseback riding intervention. Autistic children exposed to therapeutic h...

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