نتایج جستجو برای: riding quality

تعداد نتایج: 756996  

Journal: :Annals of family medicine 2014
Charles A Jennissen Karisa K Harland Kristel Wetjen Jeffrey Peck Pam Hoogerwerf Gerene M Denning

PURPOSE More youth are killed every year in the United States in all-terrain vehicle (ATV) crashes than on bicycles, and since 2001, one-fifth of all ATV fatalities have involved victims aged 15 years or younger. Effectively preventing pediatric ATV-related deaths and injuries requires knowledge about youth riding practices. Our objective was to examine ATV use, crash prevalence, and riding beh...

Journal: :Barnelitterært Forskningstidsskrift 2014

Journal: :Against the Grain 2005

Journal: :IMF Working Papers 2020

Journal: :Injury Prevention 2010

Journal: :Physical education, sport and health culture in modern society 2020

Journal: :Psychological Science 2013

Journal: :First Monday 2000
Eytan Adar Bernardo A. Huberman

An extensive analysis of user traffic on Gnutella shows a significant amount of free riding in the system. By sampling messages on the Gnutella network over a 24-hour period, we established that 70% of Gnutella users share no files, and 90% of the users answer no queries. Furthermore, we found out that free riding is distributed evenly between domains, so that no one group contributes significa...

2017
A.P.M. Duarte D. Attili-Angelis N.C. Baron J.Z. Groenewald P.W. Crous F.C. Pagnocca

Isolates of Teratosphaeriaceae have frequently been found in the integument of attine ants, proving to be common and diverse in this microenvironment. The LSU phylogeny of the ant-isolated strains studied revealed that they cluster in two main lineages. The first was associated with the genus Xenopenidiella whereas the other represented two ant-isolated lineages sister to the taxa Penidiella ag...

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