objectives the aim of this study was to obtain the epidemiology of this type of injury in tabriz imam reza hospital as a referral center in northwest of iran during 2009 to 2012. materials and methods one hundred bicycle-related patients during the three years were entered in this descriptive cross-sectional study. patient’s demographics, place and time of crash, mechanism of trauma, helmet and...

In this paper an improved approach for pre processing of web logs data has been proposed and evaluated so that it can be applied for web logs of e-commerce web sites. The resultant web log data after these pre processing steps can be used for further pattern discovery and analysis that helps to provide useful prediction to enhance e-commerce. Ideally, the input for the Web Usage Mining process ...

The authors develop a contingent trip model to estimate the recreation demand for and value of a potential rail-trail site in north-east Georgia. The contingent trip model is an alternative to travel cost modelling useful for ex ante evaluation of proposed recreation resources or management alternatives. The authors estimate the empirical demand for trips using a negative binomial regression sp...

The first aim for this paper was to examine gender and age differences in the intensity of usage of information and communication technology (ICT: computer for digital playing, writing and e-mailing and communication, and Internet surfing, and mobile phone). Second, we modelled the possible mediating role of sleeping habits and waking-time tiredness in the association between ICT usage and perc...

When valuing water resources using multiple site recreation data, it is typical to observe many corner solutions. We present as a benchmark a theoretical model of recreation choice when corners are present, and assess the degree to which several empirical specifications match the benchmark. As an illustration, we estimate and compare the repeated nested logit, a random parameters repeated neste...

The Kuhn-Tucker model provides a utility theoretic framework for estimating preferences over commodities for which individuals choose not to consume one or more of the goods. This paper provides an application of the Kuhn-Tucker model to the problem of recreation demand and site selection, modeling the demand for fishing in the Wisconsin Great Lakes region. Disciplines Agricultural and Resource...

This paper describes a novel methodology for generating models of demand for informal outdoor recreation. We analyze visitor data from multiple forest sites across Great Britain. We introduce a wide range of variables typically omitted from most economic demand models of recreation. These include on-site characteristics, and off-site locational drivers of visitation including substitute and com...