Search results for "substance"

Formulas for the thermodynamic properties of dense nitrogen.

1969

Direct visualization of pyrrole reactivity by confined oxidation in a Cyclodextrin Metal‐Organic Framework

2019

Metal-organic frameworks can be used as porous templates to exert control over polymerization reactions. Shown here are the possibilities offered by these crystalline, porous nanoreactors to capture highly‐reactive intermediates for a better understanding of the mechanism of polymerization reactions. By using a cyclodextrin framework the polymerization of pyrrole is restricted, capturing the formation of terpyrrole cationic intermediates. Single‐crystal X‐ray diffraction is used to provide definite information on the supramolecular interactions that induce the formation and stabilization of a conductive array of cationic complexes.

Lasten ja aikuisten väliset suhteet vanhempien päihdeongelmaa käsittelevissä Tiimi-lehden teksteissä vuosina 2000-2013

2019

Miten päihdetyössä määritellään lasten ja aikuisten välisiä suhteita, kun vanhemmat käyttävät ongelmallisesti päihteitä? Millainen toiminta on lapsille päihdetyön avunsaajana mahdollista? Artikkelissa kysymyksiin vastataan päihdetyön erikoislehdestä vuosina 2000–2013 kerätyn aineisto avulla. Parental substance abuse is known to cause a range of problems for children. This article looks at how childadult relations are defined in professional texts dealing with parental substance abuse and associated problems. The dataset consists of 86 texts published in 2000– 2013 in the A-Clinic Foundation’s Tiimi journal, which is dedicated to issues of substance abuse prevention and treatment. The meanin…

HS-SPME and GC-MS as valid tools to assess volatile organic compounds from soil natural organic matter

2008

Biopolymer Recovery from Aerobic Granular Sludge and Conventional Flocculent Sludge in Treating Industrial Wastewater: Preliminary Analysis of Differ…

2022

The recovery of biopolymers from sewage sludge could be a crucial step in implementing circular economy principles in wastewater treatment plants (WWTP). In this frame, the present study was aimed at evaluating the simultaneous production of polyhydroxyalkanoates (PHA) and extracellular polymeric substances (EPS) obtainable from the treatment of agro-industrial wastewater. Two biological enrichment systems, aerobic granular sludge (AGS) and a conventional activated sludge operating as a sequencing batch reactor (SBR), were monitored for 204 and 186 days, respectively. The maximum biopolymers accumulation capacity was close to 0.60 mgPHA-EPS gVSS−1 in the AGS when operating at 3 kgCODm…

Western Australian students' alcohol consumption and expenditure intentions for Schoolies.

2016

In Australia, the immediate post-school period (known as ‘Schoolies’) is associated with heavy drinking and high levels of alcohol-related harm. This study investigated students’ intended alcohol consumption during Schoolies to inform interventions to reduce alcohol-related harm among this group. An online survey was administered to students in their senior year of schooling. Included items related to intended daily alcohol consumption during Schoolies, amount of money intended to be spent on alcohol over the Schoolies period, and past drinking behaviour. On average, participants (n=187) anticipated that they would consume eight standard drinks per day, which is substantially higher than t…

Mediating Effects of Global Negative Effect Expectancies on the Association between Problematic Cannabis Use and Social Anxiety

2017

The relationship between social anxiety and cannabis use among adolescents and young adults is a highly debated topic. In this cross-sectional study, we tested whether cannabis use expectancies mediated the association between social anxiety and cannabis use severity in a sample of 343 young adults (74.3% male) who used cannabis. They completed self-report measures for the screening of problematic cannabis use (Cannabis Use Problems Identification Test) and social anxiety symptoms (Social Interaction Anxiety Scale and Social Phobia Scale). A multiple mediation analysis was used to test whether marijuana effect expectancies mediate social anxiety effect on problematic cannabis use. Social an…

Risk behavior of youth – social definition of risk

2020

Social defining of the risk behaviors is rooted in a diverse, multidimensional world of norms, values, rituals and discourses. Including social contexts of engaging in the risk behaviors and production of knowledge about them allowed us to go beyond standard cause-and-effect descriptions and examine these actions as an essential element of everyday practices and rituals of youth. The aim of this paper was to analyze the risk behaviors of youth in the framework of sociological categories of risk, reflexivity and interactional order. The paper is based on the results of the qualitative study conducted within the project “Problem Behaviors of Youth – Study in the Opole Region 2019–2020,” that …