The phenomenon of anomalous dispersion has been used quite fruitfully by Rozhdestvensky and his pupils, who evolved the famous "rtacken-Methode." This method makes it possible to measure with great accuracy considerable optical densities, but involves quite formidable work on spectrograms. The theory of the 'Hacken-Methode" for determining the optical density of molecular substances has not yet...

abstract comorbidity of mental disorders and substance abuse has significant effect in treatment of persons with substance dependency. this research is aimed to determine the frequency of mental disorders in substance abusers. in cross-sectional descriptive design, 643 people were selected using convenience random sampling among patients with substance dependency that were undergoing treatment ...

The present study examined (1) the impact of a brief substance use intervention on delay discounting and indices of substance reward value (RV), and (2) whether baseline values and posttreatment change in these behavioral economic variables predict substance use outcomes. Participants were 97 heavy drinking college students (58.8% female, 41.2% male) who completed a brief motivational intervent...

A complicating factor affecting the treatment of individuals with coexisting substance use problems and serious mental illness is their motivation for change and how these interacting, chronic conditions affect the entire process of intentional behavior change. This selective review explores conceptual and assessment issues related to readiness to modify substance use and readiness to initiate ...

Visitors (N = 579) to a science center read selected scenarios and evaluated the most likely outcome for a hypothetical substance abuser. Respondents were randomly assigned to one of six scenario conditions: a person with one of three different substance abuse problems (alcohol, tobacco, or cocaine) was crossed with two labels reflecting high or low substance dependence. Results indicated that:...

Screening, Brief Intervention, and Referral to Treatment (SBIRT) is an evidence-based approach to reducing substance use in adolescents. An emerging literature shows the promise of school-based SBIRT. However, most school-based SBIRT has only targeted substance-using adolescents and used school-based health clinics, which most schools lack. This project aimed to describe the following: a model ...

Recent evidence suggests that impulsivity and sensation seeking are not stable risk factors for substance use among adolescents and early adults but rather that they undergo significant developmental maturation and change. Further, developmental trends of both personality facets may vary across individuals. In the current investigation, we used longitudinal data from ages 15 to 26 on 5,632 indi...

introduction: substance abuse/dependency is one of the most important comorbidity in bipolar patients. therefore, recognizing the patterns of substance use is valuable in treatment and management of patients. this study was conducted to determine patterns of substance abuse among bipolar patients who were hospitalized in an educational hospital. methods : this was a descriptive-analytical study...