Publications by authors named "E Karnes"

Various single-rider open vehicles, such as lawnmowers, are susceptible to overturning on slopes that are too steep for them. Warnings have included separation from the vehicles and avoiding slopes that are too steep. A recommended maximum slope is commonly 15 degrees.

View Article and Find Full Text PDF

In the field of forensic human factors, experts are often called upon to assess and evaluate the adequacy of new or existing products' warnings or warnings systems. The usual goal of this evaluation is to arrive at a simple binary decision regarding the warning in question (i.e.

View Article and Find Full Text PDF

The American Recovery and Reinvestment Act of 2009 included new funding for developing better evidence about health interventions, with a down payment of $1.1 billion for comparative effectiveness research. Our analysis of funds allocated in the legislation found that nearly 90 percent of the $1.

View Article and Find Full Text PDF

Background: Policy makers, payers, and other stakeholders increasingly call for greater evidence of the cost-effectiveness of health care interventions.

Objective: The purposes of this study were to identify and rate the quality of cost analysis literature in physical therapy and to report summary information on the findings from the reviewed studies.

Design: This study was a targeted literature review and rating of relevant studies published in the last decade using a quality evaluation tool for economic studies.

View Article and Find Full Text PDF