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Salvia divinorum (salvia) is an intense, short-acting hallucinogenic plant gaining popularity among adolescents in the United States. There has been little scientific documentation of salvia's effects. The popular video-sharing website YouTube has received literally thousands of video-posts of people using salvia. The objective of this study was to assess(More)
A move towards the development of lean, issue-focused interfaces is being explored to provide a rapid delivery mechanism to transfer catchment science to managers and custodians. This approach is a move away from development of large decision support systems which attempt to anticipate a myriad of management questions. It relies on having a modelling system(More)
OBJECTIVE Salvia divinorum (salvia) is a plant that appears to be enjoying increased popularity as a legal hallucinogen in many U.S. jurisdictions. While the popular press has claimed that its use has become widespread, there have been no epidemiological studies published documenting this within the U.S. METHOD A sample of college students was randomly(More)
This study conducted a follow-up telephone survey of a probability sample of college students who did not respond to a Web survey to determine correlates of and reasons for nonresponse. A stratified random sample of 2502 full-time first-year undergraduate students was invited to participate in a Web-based survey. A random sample of 221 students who did not(More)
OBJECTIVE Using self-report survey data and measures of breath alcohol concentration (BrAC), this study examined the validity of an estimate of blood alcohol concentration (eBAC). Differences between eBAC and BrAC were modeled to identify sources of error related to survey-derived eBAC. Further, using hierarchical multilevel analyses, environmental event(More)
OBJECTIVE Designated drivers are a popular strategy for avoiding drunk driving. However, studies have demonstrated that the strategy is often implemented poorly, resulting in diminished risk-reduction effectiveness. The purpose of this study was to test the efficacy of six interventions designed to reduce alcohol consumption among designated drivers. (More)
The Food and Drug Administration approved over-the-counter (OTC) sale of nicotine gum and nicotine patches in 1996. We used data from the 1996 California Tobacco Survey to compare the rates of nicotine replacement therapy (NRT) use and smoking abstinence in California for each month during a period immediately preceding and immediately following the OTC(More)
In recent years researchers have paid substantial attention to the issue of college students' alcohol use. One limitation to the current literature is an over reliance on retrospective, self-report survey data. This article presents field methodologies for measuring college students' alcohol consumption in natural drinking environments. Specifically, we(More)
AIMS This study builds upon previous research by assessing the relationship of breath blood alcohol concentrations (BrAC) to environmental and individual characteristics. DESIGN We conducted a multi-level study of college parties. Our design included observational measures of party environments, a brief self-administered questionnaire, and the collection(More)
This study examines environmental differences in public (bars) and private (parties) drinking settings among of-age (21 and up years of age) and underage (18-20 years of age) college students attending college near the US/Mexico border. A random telephone survey of graduate and undergraduate students attending two large public universities in the(More)