Experimenter effects on behavioral test scores of eight inbred mouse strains under the influence of ethanol.

ight standard inbred mouse strains were evaluated for ethanol effects on a refined battery of behavioral tests in a study that was originally designed to assess the influence of rat odors in the colony on mouse behaviors. As part of the design of the study, two experimenters conducted the tests, and the study was carefully balanced so that equal numbers of mice in all groups and times of day were tested by each experimenter. A defect in airflow in the facility compromised the odor manipulation, and in fact the different odor exposure groups did not differ in their behaviors. The two experimenters, however, obtained markedly different results for three of the tests. Certain of the experimenter effects arose from the way they judged behaviors that were not automated and had to be rated by the experimenter, such as slips on the balance beam. Others were not evident prior to ethanol injection but had a major influence after the injection. For several measures, the experimenter effects were notably different for different inbred strains. Methods to evaluate and reduce the impact of experimenter effects in future research are discussed.

Adult attention-deficit/hyperactivity disorder and nicotine withdrawal: a qualitative study of patient perceptions

Background: Nicotine use has been reported to ameliorate symptoms of Attention-Deficit/Hyperactivity Disorder (ADHD). Furthermore, adults with ADHD have a relatively high prevalence of cigarette smoking and greater difficulty abstaining from smoking. Overall, though, there is scant literature investigating the beliefs, perceptions and experiences of smokers with ADHD regarding smoking cessation and withdrawal. Methods: Our participants (n = 20) fulfilling criteria for ADHD and a past or current dependence from nicotine were recruited from the in- and outpatient clinic of the Zurich University Psychiatric Hospital and the Psychiatric Services Aargau (Switzerland). We conducted in-depth interviews to explore their motivations to quit, past experiences with and expectations about quitting using a purposeful sampling plan. The sample was selected to provide diversity in relation to level of nicotine dependence, participation in a smoking-cessation program, gender, age, martial status and social class. Mayring’s qualitative content analysis approach was used to evaluate findings. Results: Adult smokers with ADHD had made several attempts to quit, experienced intense withdrawal symptoms, and relapsed early and often. They also often perceived a worsening of ADHD symptoms with nicotine abstinence. We identified three motives to quit smoking: 1) health concerns, 2) the feeling of being addicted, and 3) social factors. Most participants favored a smoking cessation program specifically designed for individuals with ADHD because they thought ADHD complicated their nicotine withdrawal and that an ADHD-specific smoking cessation program should address specific symptoms of this disorder. Conclusions: Since treatment initiation and adherence associate closely with perception, we hope these findings will result in better cessation interventions for the vulnerable subgroup of smokers with ADHD. Keywords: ADHD, Nicotine, Withdrawal, Subjective, Qualitative, Narrative

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Mode of access: Internet.

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National Highway Traffic Safety Administration, Office of Driver and Pedestrian Research, Washington, D.C.

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Internal density currents created by withdrawal from a stratified reservoir : cooperative study /

Mode of access: Internet.

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"June 1981."

Opportunities for ethanol - gasohol research in Illinois.

Bibliography: p. 49.

The ethanol industry in Illinois /

Provides an overview of the ethanol industry in Illinois including a timeline on the history of the U.S. ethanol industry. Also discusses government support of the industry in the state of Illinois and summarizes controversies associated with the industry and its financial impact on the Illinois economy.

The use of ethanol distillery by-products in aquaculture : final report /

"Printed: December 1987."

Rocky Mountain Front mineral withdrawal : Helena and Lewis and Clark Forest Plan amendments : Glacier, Lewis and Clark, Pondera and Teton counties, Montana.

"October 2000"--Cover.

The structure of withdrawal : relationships among estrangement, tardiness, absenteeism, and turnover /

Prepared for the Employment and Training Administration, U.S. Department of Labor, under Research and Development Grant No. 91-48-78-39.

Drainage-return, surface-water withdrawal, and land-use data for the Sacramento-San Joaquin Delta, with emphasis on Twitchell Island, California /

Mode of access: Internet.