Relationship of depression to smoking outcomes in a methadone-maintained population.

The association of depression and successful smoking cessation efforts is inconsistent. We test the hypothesis that higher levels of depression complicate efforts to quit smoking in a methadone-maintained (MM) population offered nicotine replacement and a brief behavioral intervention. We recruited 383 participants from 2/02 to 5/04; 340 (88.

Anion effects on gas solubility in ionic liquids.

This work presents the results of solubility measurements for a series of gases in 1-n-butyl-3-methyl imidazolium tetrafluoroborate and 1-n-butyl-3-methyl imidazolium bis(trifluoromethylsulfonyl) imide. The gases considered include benzene, carbon dioxide, nitrous oxide, ethylene, ethane, oxygen, and carbon monoxide. Carbon dioxide and oxygen solubilities are also reported in methyl-tributylammonium bis(trifluoromethylsulfonyl) imide, butyl-methyl pyrrolidinium bis(trifluoromethylsulfonyl) imide, and tri-isobutyl-methyl phosphonium p-toluenesulfonate.

A smoking cessation intervention for the methadone-maintained.

Aim: To test, in combination with the nicotine patch, the incremental efficacy of a maximal, tailored behavioral treatment over a minimal treatment for smoking cessation.

Design: Randomized clinical trial with 6-month follow-up.

Setting: Five methadone maintenance treatment centers in Rhode Island.

Persistence of antidepressant treatment effects in a pharmacotherapy plus psychotherapy trial for active injection drug users.

The objective of this study was to determine if combined psychotherapy and pharmacotherapy reduces reported depressive symptoms compared to an assessment only condition for active drug injectors over nine months. Using a randomized controlled trial at an outpatient academic research office, the researchers applied psychotherapy (eight sessions of cognitive behavioral therapy) plus pharmacotherapy (citalopram) to active injection drug users with a DSM-IV diagnosis of major depression, dysthymia, substance-induced mood disorder with symptoms persisting for at least three months, or major depression plus dysthymia, and a Modified Hamilton Rating Scale for Depression (MHRSD) score greater than 13. The MHRSD scale scores were then assessed at the completion of three, six, and nine months.

Correlates of motivation to quit smoking in methadone-maintained smokers enrolled in a smoking cessation trial.

Cigarette smoking is a clear problem among methadone-maintained persons, yet little is known about factors that may be associated with their motivation to quit smoking. A sample of 255 smokers, enrolled in a smoking cessation research protocol, completed measures of their smoking motivation, smoking habit, quitting history, and intent to quit in the future. Both zero-order correlational and multivariate linear regression analyses indicated that only number of cigarettes smoked per day and expectancies for success with smoking cessation were associated significantly with motivation to quit smoking.

Why Is CO2 so soluble in imidazolium-based ionic liquids?

Experimental and molecular modeling studies are conducted to investigate the underlying mechanisms for the high solubility of CO2 in imidazolium-based ionic liquids. CO2 absorption isotherms at 10, 25, and 50 degrees C are reported for six different ionic liquids formed by pairing three different anions with two cations that differ only in the nature of the "acidic" site at the 2-position on the imidazolium ring. Molecular dynamics simulations of these two cations paired with hexafluorophosphate in the pure state and mixed with CO2 are also described.

Adherence to treatment of depression in active injection drug users: the minerva study.

The impact of depression on drug users is extensive, serving as a trigger for high-risk injection practices and continued drug use. Yet the ability to retain active drug users in mental health treatment has never been tested clinically. We recruited injection drug users (IDU) for a randomized study of combined psychotherapy and pharmacotherapy for the treatment of depression.

Pharmacotherapy plus psychotherapy for treatment of depression in active injection drug users.

Context: Depressive disorders are common among opiate abusers and are associated with detrimental behavioral effects. However, there is little precedent for offering active drug users complex treatments for depression.

Objective: To determine whether combined psychotherapy and pharmacotherapy treatment reduces reported depressive symptoms compared with an assessment-only condition among out-of-treatment drug injectors.