On efficient modelling of radical production in cavitation assisted reactors.

Process intensification by cavitation is gaining widespread attention due to the benefits that the intense bubble collapse conditions can provide, yet, several knowledge gaps exist in the modelling of such systems. This work studies the numerical prediction of single bubble dynamics and the various approaches that can be employed to estimate the changes in the chemical composition of cavitating bubbles. Specific emphasis is placed on the prediction of the radical production rates during bubble collapse and the computational performance, with the aim of coupling the single bubble dynamics to flow models for reactor hydrodynamics.

Pregnancy and STI/HIV prevention intervention preferences of South African adolescent girls: findings from a cultural consensus modelling qualitative study.

South African adolescent girls experience high rates of unintended pregnancy and sexually transmitted infections including HIV. To inform culturally-tailored dual protection interventions to prevent both unintended pregnancy and STIs/HIV, this study qualitatively examined girls' sexual health intervention preferences. Participants were aged 14-17 years old and Sesotho-speaking ( = 25).

'Being a mother is not child's play': The capabilities of mothers in a low-resource setting in South Africa.

Background: The importance of a child's first 1000 days has now been widely accepted by the medical fraternity. Yet, we do not know much about caring practices in low-resource settings.

Aim: This study aimed to investigate the caring capabilities of mothers in a low-resource setting.

Hope and mental health problems among orphans and vulnerable children in South Africa.

There are over three million orphaned and vulnerable children (OVC) currently living in South Africa. OVC are at high risk for a number of negative outcomes, including poor mental health. Hope has been associated with well-being among youth, including youth in South Africa.

Housing and Child Health in South Africa: The Value of Longitudinal Research.

Research investigating the link between housing and health often produces mixed results. It does not always prove that good housing improves health. The results suggest a complex set of factors play a role, and the findings are sometimes contradictory.

Mediational Intervention for Sensitizing Caregivers to Improve Mental Health Outcomes in Orphaned and Vulnerable Children.

Objective: There is an urgent need to equip community-based careworkers with the skills to address the mental health needs of orphans and vulnerable children (OVC) as an essential response to shortages in human resources for mental health in Sub-Saharan Africa. We conducted a quasi-experimental feasibility trial in South Africa to adapt and evaluate an established year-long semi-structured, manualized video-feedback caregiver intervention (the Mediational Intervention for Sensitizing Caregivers; MISC) for community-based organizations (CBOs).

Methods: Following a year-long iterative cross-cultural adaptation of MISC, we recruited 88 OVC (ages 7-11; 45.

Cultural Consensus Modeling to Understand South African Adolescent Girls' Attitudes, Awareness, and Uptake of Dual Protection Strategies.

Purpose: This study used cultural consensus modeling to elucidate culturally relevant factors associated with dual protection use (strategies to prevent both pregnancy and sexually transmitted infection [STI]/HIV) among South African adolescent girls aged 14-17 years.

Methods: In Phase 1, participants (N = 50) completed a free-listing survey assessing pregnancy and STI/HIV methods used by peers. In Phase 2, participants (N = 100) completed a rating survey to examine perceived peer acceptability of Phase 1 pregnancy and STI/HIV prevention methods.

Targeting for male medical circumcision: profiles from two South African cities.

Male circumcision is considered by some to be an acceptable global approach to reduce HIV infections. Consequently, many governments in sub-Saharan Africa run voluntary male circumcision programmes. South Africa also provides male circumcision for free at state clinics and hospitals.

Socio-economic status and socio-emotional health of orphans in South Africa.

This paper investigates the relationship between socio-economic status and emotional well-being of orphans in Mangaung, South Africa. Five hundred orphans aged 7-11 years participated in the cross-sectional study between 2009 and 2012. Data was collected by trained fieldworkers, who conducted face-to-face interviews and questionnaires with the orphans, their teachers and caregivers, and the heads of the households where the orphans resided.

Community-based mental health support for orphans and vulnerable children in South Africa: A triangulation study.

Community-based care is receiving increasing global attention as a way to support children who are orphaned or vulnerable due to the HIV/AIDS pandemic. Using both qualitative and quantitative methodology, this study assesses community-based responses to the well-being of orphans and vulnerable children (OVC) and compares these responses with the actual mental health of OVC in order to evaluate the South African government's approach of funding community-based organisations (CBOs) that support and care for OVC. The study results show that the activities of CBOs mainly extend government services and address poverty.

Housing conditions and mental health of orphans in South Africa.

Literature from the developed world suggests that poor housing conditions and housing environments contribute to poor mental health outcomes, although research results are mixed. This study investigates the relationship between housing conditions and the socio-emotional health of orphans and vulnerable children (OVC) in South Africa. The results of the study are mainly inconclusive, although it is suggested that methodological considerations play a vital role in explaining the mixed results.