Firesetting among 18-23 year old un-apprehended adults: a UK community study

Purpose This study aims to assess the prevalence of firesetting in a sample of young UK adults aged 18 to 23 years and to compare their characteristics with non-firesetting individuals. Design/methodology/approach Two-hundred and forty male (n = 119, 49.6%) and female (n = 121, 50.4%) participants were recruited through Prolific Academic. Comparisons were made between self-reported firesetting and non-firesetting participants on a range of demographic, fire-related and personality measures. Factors predictive of firesetting status were examined using hierarchical logistic regression. Findings Twenty-five percent of participants (n = 60) reported igniting a deliberate fire. Logistic regression was used to examine the ability of parental supervision and behavioural issues (e.g., witnessing domestic violence, experimenting with fire before age 10 and family history of firesetting), antisocial behaviours (e.g., having criminal friends, impulsivity, teenage access to fire paraphernalia, skipping class more than once per week, taken any illegal drugs and participation in criminal behaviour) and fire-related interests, attitudes and propensities in predicting firesetting status. Factors found to distinguish firesetting and non-firesetting participants included the following: experimented with fire before 10 years of age, family history of firesetting, impulsivity, teenage access to fire paraphernalia, participation in criminal behaviour and the Fire Setting Scale. Practical implications The results provide key information about potential risk factors relating to un-apprehended firesetting in the general population. Originality/value This research adds to the small body of literature examining firesetting in the general population. It refines previously used methodologies, presents the first research study to examine the prevalence of firesetting behaviour in emerging adults and enhances our understanding of un-apprehended firesetting.

Early Development of ADHD and ODD Symptoms from the Toddler to Preschool Years

Objective: ADHD and ODD are commonly co-occurring, but often studied individually. This study evaluated common trajectories of these disorders and explored how they co-develop in early childhood. Method: Community parents ( N = 273) completed online surveys about their 2-year-old. Children’s inattention, hyperactivity/impulsivity, and oppositional defiant disorder symptoms over 2 years were examined using latent class, dual trajectory, and cross-lagged analyses. Results: Most children followed low symptom trajectories. A small portion showed high, moderate, or increasing trajectories. The hyperactive/impulsive domain of ADHD showed a declining symptoms group. Children in high ODD groups were likely to be in high ADHD symptom groups; the converse was true but probabilities were lower. Hyperactive/impulsive symptoms predicted ODD symptoms across time, more than vice versa. Conclusion: The study extends the small body of literature assessing early development of ADHD and ODD. Findings suggest that earlier intervention for symptoms of ADHD may mitigate risk of developing ODD.

Computational investigation of blood cell transport in retinal microaneurysms

Microaneurysms (MAs) are one of the earliest clinically visible signs of diabetic retinopathy (DR). MA leakage or rupture may precipitate local pathology in the surrounding neural retina that impacts visual function. Thrombosis in MAs may affect their turnover time, an indicator associated with visual and anatomic outcomes in the diabetic eyes. In this work, we perform computational modeling of blood flow in microchannels containing various MAs to investigate the pathologies of MAs in DR. The particle-based model employed in this study can explicitly represent red blood cells (RBCs) and platelets as well as their interaction in the blood flow, a process that is very difficult to observe in vivo. Our simulations illustrate that while the main blood flow from the parent vessels can perfuse the entire lumen of MAs with small body-to-neck ratio (BNR), it can only perfuse part of the lumen in MAs with large BNR, particularly at a low hematocrit level, leading to possible hypoxic conditions inside MAs. We also quantify the impacts of the size of MAs, blood flow velocity, hematocrit and RBC stiffness and adhesion on the likelihood of platelets entering MAs as well as their residence time inside, two factors that are thought to be associated with thrombus formation in MAs. Our results show that enlarged MA size, increased blood velocity and hematocrit in the parent vessel of MAs as well as the RBC-RBC adhesion promote the migration of platelets into MAs and also prolong their residence time, thereby increasing the propensity of thrombosis within MAs. Overall, our work suggests that computational simulations using particle-based models can help to understand the microvascular pathology pertaining to MAs in DR and provide insights to stimulate and steer new experimental and computational studies in this area.

The Making Of Capital City Tourism In South Africa

Capital city tourism is a significant theme for urban tourism scholarship. Existing international research on capital city tourism mainly concentrates on the global North. For the global South as a whole limited research examines capital cities as tourism destinations and for sub-Saharan Africa scholarship is minimal. This study contributes to the small body of writings that interrogate capital city tourism in the global South. Further, it marks a departure from the mainstream research focus on contemporary issues of capital city tourism by adopting an historical perspective on capital city tourism. Using a range of archival and documentary sources the analysis highlights the making of South Africa’s capital city as a tourism destination. Under scrutiny is the historical evolution and changing character of tourism in Pretoria over a period of a half century from 1920 to 1975. It is shown that the distinctiveness of Pretoria’s early tourism products were a reflection of its capital status. Definition of the tourism product base and its promotion were facilitated by the activities undertaken by national government promotion and the local Pretoria Publicity Association. An historical challenge for tourism development was the poor quality of local hotels, which were at a standard below international norms until at least the late 1960s. The difficulties of the accommodation services sector were compounded by the enactment of apartheid legislation from 1948 onwards, which required the existence of hotels as racialized and segregated spaces.

Human Trafficking of People with a Disability: An Analysis of State and Federal Cases

The current academic discourse examining human trafficking is lacking in focus on survivors with a disability. The increased likelihood of abuse experienced by people with a disability is well documented in the research literature, and a small body of research indicates heightened sex trafficking victimization of minor girls with a disability. Yet, very little research specifically examines sex and/or labor trafficking of people with a disability, and no systematic research analyzes prosecuted cases of trafficking with disability as the focal point of analysis. Drawing from a content analysis of 18 federal and 17 state cases of human trafficking, the current study specifically aimed to increase our understandings of sex and labor trafficking involving survivors with a disability. The findings revealed the following patterns and themes: 1) the type of trafficking experienced (sex, labor, or both), 2) whether state level or federal cases 3) the types of disabilities identified among trafficking survivors, 4) the nature of the relationship between traffickers and survivors, 5) methods of recruitment, 6) case outcomes; and 7) demographic characteristics of traffickers and survivors (e.g., gender/citizenship). Implications include prevention efforts in the form of developmentally grounded sex education and healthy relationships curriculum for survivors with an intellectual disability, as well as specialized anti-trafficking training for those in legal, healthcare, and social services that is inclusive of people with a disability.