OBJECTIVES We sought to examine the associations between participation in a worksite fitness center and worker productivity. METHODS A modified Work Limitations Questionnaire (WLQ) and employees' short-term disability claims were used as productivity measures with multivariate logistic regression models to control for health risk, age, gender, and work location. RESULTS Nonparticipants in a...

While quasar outflows may be quasi-ubiquitous, there are significant differences on a source-bysource basis. These differences can be organized along the 4D Eigenvector 1 sequence: at least at low z, with only Population A sources radiating at relatively high Eddington ratio and showing prominent high-velocity outflows in Civ λ1549 line profiles. We discuss in this paper VLT-FORS observations o...

Effective treatments for asthma exist, but morbidity and mortality have continued to climb. Many attempts have been made to refine rather than change therapy over the past 20 years. Drugs currently used to treat asthma include beta 2-agonists, glucocorticoids, theophylline, cromones, and anticholinergic agents. For acute, severe asthma, the inhaled beta 2-agonists are the most effective broncho...