AI-assisted deep learning segmentation and quantitative analysis of X-ray microtomography data from biomass ashes.

X-ray microtomography is a non-destructive method that allows for detailed three-dimensional visualisation of the internal microstructure of materials. In the context of using phosphorus-rich residual streams in combustion for further ash recycling, physical properties of ash particles can play a crucial role in ensuring effective nutrient return and sustainable practices. In previous work, parameters such as surface area, porosity, and pore size distribution, were determined for ash particles.

Morphology and phosphate distribution in bottom ash particles from fixed-bed co-combustion of sewage sludge and two agricultural residues.

The purpose of this study was to provide detailed knowledge of the morphological properties of ash particles, including the volumetric fractions and 3D distributions of phosphates that lay within them. The ash particles came from digested sewage sludge co-combusted with K- and Si-rich wheat straw or K-rich sunflower husks. X-ray micro-tomography were combined with elemental composition and crystalline phase information to analyse the ash particles in 3D.

Police officers' perspective on doping and prevention among recreational athletes: a cross-sectional study.

Introduction: The use of anabolic androgenic steroids among recreational athletes has received growing attention in recent decades. Several countries have implemented bans on doping; however, recreational athletes and other subpopulations continue to use doping substances. Recognizing that the police play a crucial role in preventing the use and dealing of doping substances in Sweden, efforts have been made to intensify police interventions and enhance collaboration with other key actors.

Mental health problems, health risk behaviors, and prevention: A qualitative interview study on perceptions and attitudes among elite male soccer players.

Background: The purpose of this study was to investigate the perception of mental health problems and health risk behaviors among Swedish male elite soccer players and their attitudes toward possible prevention strategies.

Method: Twenty elite soccer players, aged 15-30 years, were recruited through purposive sampling and interviewed a digital video calling platform. A semi-structured interview guide, encompassing questions about mental health problems, health risk behaviors among soccer teams, peer-relations, relations to coaches, and attitudes toward health risk behaviors, along with proposals for effective interventions, was employed.

Facilitators and barriers in preventing doping among recreational athletes: A qualitative interview study among police officers.

Background: Doping is a societal problem associated with health problems, violence, and other crimes, especially when combined with alcohol and drugs. Elite, as well as recreational athletes who exercise in gyms may use doping to enhance their performance and/or improve their appearance. According to Swedish law, manufacturing, selling, supplying, possessing, and using anabolic androgenic steroids and growth hormones is forbidden.

Attitudes to Cannabis Use and Public Prevention Information Among Young Adults: A Qualitative Interview Study With Implications for Prevention Practice.

Background: Cannabis use carries an increased risk of ill health and social problems, especially when initiated at a young age. Drug use is influenced by individual beliefs, knowledge, and attitudes, which are, in turn, governed by social and environmental factors. In recent years, a less restrictive attitude toward cannabis has been observed in many countries, with concerns about increased cannabis use among young people.

Morphological characterisation of ash particles from co-combustion of sewage sludge and wheat straw with X-ray microtomography.

Combustion of phosphorus-rich residual streams can produce nutrient-rich ashes and these can be used either in further processing or as materials for direct nutrient recycling. The latter requires knowledge on morphological parameters of such ash particles that may impact plant growth, nutrient availability, and soil physical properties. The present work aims to determine the porosity, pore size, and specific surface area of ash particles, and discuss these properties in light of literature concerning interaction with soil water and plant roots.

Illicit Drug Use and Associated Problems in the Nightlife Scene: A Potential Setting for Prevention.

Illicit drug use is prevalent in the nightlife scene, especially at electronic dance music (EDM) events. The aim of the present study was to investigate illicit drug use patterns and consequences of drug use among frequent visitors of EDM events. Young adults (18-34 years old) who had visited at least six EDM events in Sweden during the past year participated in a web-based survey on drug use patterns and its consequences.

Drug dealing and drug use prevention - a qualitative interview study of authorities' perspectives on two open drug scenes in Stockholm.

Background: The use of illicit substances causes various health and social problems globally. Moreover, open drug use and dealing in urban areas, i.e.

Alcohol and illicit drug consumption and the association with risky sexual behaviour among Swedish youths visiting youth health clinics.

Aims: High alcohol consumption and use of illicit drugs among young people is of great concern and there is a need to identify arenas where this group can be reached by preventive measures. The aim of the present study was to study prevalence of risky alcohol consumption, illicit drug use, and risky sexual behaviour (RSB) among young people visiting youth health clinics in Stockholm county. Another aim was to explore the association between risky alcohol consumption, illicit drug use and RSB.

Illicit Drugs in the Nightlife Setting: Changes in Employee Perceptions and Drug Use over a Fifteen-Year Period.

Illicit drug use is common in nightlife settings and associated with various public health-related problems, making this an important arena for prevention. : To assess perceived prevalence of illicit drug use in the Stockholm nightlife setting, use of and attitudes toward illicit drugs among employees at licensed premises. Also, to make comparisons with two identical measurements from 2001 and 2007/08, and to explore potential differences related to own drug use, type of licensed premise, age or gender.

Effects of an automated digital brief prevention intervention targeting adolescents and young adults with risky alcohol and other substance use: study protocol for a randomised controlled trial.

Introduction: Adolescence and young adulthood is a period in life when individuals may be especially vulnerable to harmful substance use. Several critical developmental processes are occurring in the brain, and substance use poses both short-term and long-term risks with regard to mental health and social development. From a public health perspective, it is important to prevent or delay substance use to reduce individual risk and societal costs.

Alcohol policies and attitudes toward alcohol prevention at Swedish student unions.

Aims: High alcohol consumption among young adults is of great concern. About half of all young adults in Sweden are university students, and high alcohol consumption is common in this group. This makes student unions a potential arena for alcohol prevention.

A web-based group course intervention for 15-25-year-olds whose parents have substance use problems or mental illness: study protocol for a randomized controlled trial.

Background: Depending on the definitions used, between 5 and 20 % of all Swedish children grow up with at least one parent suffering from alcohol problems, while 6 % have at least one parent who has received inpatient psychiatric care, conditions that may affect the children negatively. Nine out of ten Swedish municipalities therefore provide support resources, but less than 2 % of these children are reached by such support. Delivering intervention programs via the Internet is a promising strategy.

Gender differences in the prediction of parental servings of alcohol to adolescents and youth drunkenness.

This longitudinal study, funded by the Swedish National Institute of Public Health, explored gender differences in predictors of parental servings of alcohol to youth and youth drunkenness. Data were collected from 1,752 Swedish 7th-grade youth and their parents, at three occasions between 2007 and 2010. Measurements included youth alcohol use, parental warmth, and parental control.

The Örebro prevention programme revisited: a cluster-randomized effectiveness trial of programme effects on youth drinking.

Aims: This study aimed to assess the effectiveness of the Örebro prevention programme (ÖPP), an alcohol misuse prevention programme that aims to reduce youth drinking by changing parental behaviour.

Design: Cluster-randomized trial, with schools assigned randomly to the ÖPP or no intervention.

Setting: Forty municipal schools in 13 counties in Sweden.