background: this study aimed at determining the drug abuse pattern and the frequency of high-risk behaviors among the clients of methadone maintenance treatment centers and drop-in centers in shahroud county of semnan province. methods: in this cross-sectional study, the data collection tool was a questionnaire including 10 general and 32 specific items about drug abuse pattern and high-risk be...

OBJECTIVE Fostering positive school climates and student drug testing have been separately proposed as strategies to reduce student drug use in high schools. To assess the promise of these strategies, the present research examined whether positive school climates and/or student drug testing successfully predicted changes in youth substance use over a 1-year follow-up. METHOD Two waves of pane...

Background: In order to assess the status of drug abuse and likely addiction among university students, a descriptive study was designed. Methods: 1200 subjects among the students of three universities in Zanjan were selected by stratified random sampling and their demographic information and history of substance abuse including hookah, cigarette, codeine, ibuprofen, alcohol, diazepam, tramadol...

INTRODUCTION Methylphenidate is a psychostimulant medication used for the treatment of attention deficit hyperactivity disorder and narcolepsy. However, it has also been used for non-medical purposes, e.g. to produce euphoria, to increase self-esteem, and to achieve the so-called neurocognitive enhancement, decreasing the feeling of tiredness and increasing focus and attention. OBJECTIVE To d...

OBJECTIVES To determine the prevalence and correlates for current cigarette smoking. DESIGN Secondary analysis of the East Timor-Leste Global Youth Tobacco Survey conducted in 2006. SETTING Public and private schools registered with the Ministry of Education. PARTICIPANTS A two-stage cluster sample of 1790 students in Grades 7 to 9. Schools were selected with probability proportional to e...

Abnormal interhemispheric functional connectivity correlates with several neurologic and psychiatric conditions, including depression, obsessive-compulsive disorder, schizophrenia, and stroke. Abnormal interhemispheric functional connectivity also correlates with abuse of cannabis and cocaine. In the current report, we evaluated whether tobacco abuse (i.e., cigarette smoking) is associated with...

OBJECTIVE This study assessed whether brain dopamine D2 receptor levels, which show significant intersubject variability, predict reinforcing responses to psychostimulants in humans. METHOD [11C]Raclopride and positron emission tomography were used to measure D2 receptor levels in 23 healthy men (mean age = 34 years, SD = 7) who had no drug abuse histories in order to assess if there were dif...

INTRODUCTION In 2008, the New York State (NYS) Office of Alcoholism and Substance Abuse Services (OASAS) required all state-funded or state-certified addiction treatment programs to be 100% tobacco-free. The regulation prohibits the use or possession of all tobacco products by patients, employees, volunteers, and visitors. This includes exterior grounds and vehicles owned, leased, or operated b...