Prevalence and correlates of violence among South African high school learners in uMgungundlovu District municipality, KwaZulu-Natal, South Africa

Background. Young people grow up in homes and communities where many are exposed daily to crime and antisocial behaviours.Objective. To investigate the prevalence of violence and the demographic factors associated with such violence among South African (SA) high school learners in the uMgungundlovu District, KwaZulu-Natal, SA.Methods. In a cross-sectional study, we used stratified random sampling to select 16 schools in uMgungundlovu District. All Grade 10 high school learners (N=1 741) completed a self-administered questionnaire (Centers for Disease Control Youth Risk Behavior Survey). Data analysis was carried out using STATA 13 statistical software (Statacorp, USA).Results. Of the participants in this study, 420 (23.9%) had been bullied, 379 (21.7%) had missed school because of feeling unsafe, 468 (15.4%) had been involved in physical fights and 41 (2.4%) had carried weapons to school. There was a significant association between being in a physical fight and missing school (odds ratio (OR) 2.5, 95% confidence interval (CI) 1.9 - 3.3; p<0.001). There were higher odds of male learners carrying weapons than female learners (OR 5.9, 95% CI 2.0 - 15.0). Among learners living in rented rooms, the OR of feeling unsafe was 2.7 (95% CI 0.8 - 3.0), in an informal settlement the OR was 0.8 (95% CI 0.3 - 2.0) and in reconstruction and development programme houses it was 2.7 (95% CI 1.0 - 5.0), compared with learners residing in Zulu homesteads.Conclusion. Violence among learners attending high schools in uMgungundlovu District is a major problem and has consequences for both their academic and social lives. Urgent interventions are required to reduce the rates of violence among high school learners

High-power AlGaAs channeled substrate planar diode lasers for spaceborne communications

A high power channeled substrate planar AlGaAs diode laser with an emission wavelength of 8600 to 8800 A was developed. The optoelectronic behavior (power current, single spatial and spectral behavior, far field characteristics, modulation, and astigmatism properties) and results of computer modeling studies on the performance of the laser are discussed. Lifetest data on these devices at high output power levels is also included. In addition, a new type of channeled substrate planar laser utilizing a Bragg grating to stabilize the longitudinal mode was demonstrated. The fabrication procedures and optoelectronic properties of this new diode laser are described

Prevalence and correlates of violence among South African high school learners in uMgungundlovu District municipality, KwaZulu-Natal, South Africa

Background. Young people grow up in homes and communities where many are exposed daily to crime and antisocial behaviours. Objective. To investigate the prevalence of violence and the demographic factors associated with such violence among South African (SA)high school learners in the uMgungundlovu District, KwaZulu-Natal, SA. Methods. In a cross-sectional study, we used stratified random sampling to select 16 schools in uMgungundlovu District. All Grade 10 high school learners (N=1 741) completed a self-administered questionnaire (Centers for Disease Control Youth Risk Behavior Survey). Data analysis was carried out using STATA 13 statistical software (Statacorp, USA).Results. Of the participants in this study, 420 (23.9%) had been bullied, 379 (21.7%) had missed school because of feeling unsafe, 468 (15.4%) had been involved in physical fights and 41 (2.4%) had carried weapons to school. There was a significant association between being in a physical fight and missing school (odds ratio (OR) 2.5, 95% confidence interval (CI) 1.9 - 3.3; p<0.001). There were higher odds of male learners carrying weapons than female learners (OR 5.9, 95% CI 2.0 - 15.0). Among learners living in rented rooms, the OR of feeling unsafe was 2.7 (95% CI 0.8 - 3.0), in an informal settlement the OR was 0.8 (95% CI 0.3 - 2.0) and in reconstruction and development programme houses it was 2.7 (95% CI 1.0 - 5.0), compared with learners residing in Zulu homesteads. Conclusion. Violence among learners attending high schools in uMgungundlovu District is a major problem and has consequences for both their academic and social lives. Urgent interventions are required to reduce the rates of violence among high school learners

High risk of suicide among high-school learners in uMgungundlovu District, KwaZulu-Natal Province, South Africa

Background. Worldwide, suicide affects the most vulnerable populations, including adolescents and young adults. It is estimated that suicide will contribute more than 2% to the global burden of disease by 2020. Information about the prevalence of suicidal behaviour and the sociodemographic characteristics and risk factors associated with suicide in the South African (SA) rural context is important for local and national policy and contributes to global understanding of the phenomenon.Objective. To investigate key demographic factors and behaviours associated with planning and attempting suicide among high-school learners.Methods. In a cross-sectional study, we used stratified random sampling to select 16 schools in uMgungundlovu District, KwaZulu-Natal Province, SA. All grade 10 learners (N=1 759) at these schools completed a self-administered questionnaire (Centers for Disease Control and Prevention (CDC) Youth Risk Behavior Surveillance System). Data analysis was carried out with Stata 13 statistical software using generalised estimating equations.Results. In total, 222 learners (12.6% of the 1 759) had made plans to attempt suicide during the previous 12 months, 261 (14.8%) had actually attempted suicide, and 218 attempts had resulted in the learner being treated by a doctor or nurse (12.4%). The risk of planning suicide increased with age. For male learners, being threatened with a weapon on school property (adjusted odds ratio (AOR) 3.7, 95% confidence interval (CI) 1.9 - 7.1; p<0.01) or bullied through Facebook or WhatsApp (AOR 3.1, 95% CI 1.5 - 7.1; p<0.01) significantly increased the likelihood of making a suicide attempt that resulted in treatment by a doctor or nurse. For female learners, engaging in risk behaviours increased this likelihood, risk factors including being physically hurt by someone they were dating (1 - 3 times AOR 3.3, 95% CI 1.9 - 5.7; p<0.01, ≥4 times AOR 10.0, 95% CI 2.5 - 40.2 (p<0.01) and number of drinks consumed in the past month (AOR 2.0, 95% CI 1.4 - 3.0; p<0.01).Conclusions. The prevalence of suicide attempts among these SA learners was high and was influenced by multiple factors. Routine surveillance systems are urgently required to develop context-based interventions for male and female learners at uMgungundlovu District rural high schools.

Anatomy of Cirrus Clouds: Results from the Emerald Airborne Campaigns

2000 FLORIDA AVE NW, WASHINGTON, USA, DC, 2000

A Unique Amphibole- and Magnetite-Rich Carbonaceous Chondrite from Almahata Sitta

Almahata Sitta (AhS) 202 from the UoK collection represents a clast from the polymict breccia asteroid 2008 TC3. AhS 202 was recognized as a unique carbonaceous chondrite (CC) with a high magnetite content. Here we report that it also contains a significant amount of amphibole, a mineral that is very rare in chondrites and has not previously been reported in significant abundance in a CC. We present new petrographic, oxygen isotope, and micro-FTIR data. We discuss petrogenesis and possible relationships to known CC

Rethinking globalised resistance : feminist activism and critical theorising in international relations

This article argues that a feminist approach to the 'politics of resistance' offers a number of important empirical insights which, in turn, open up lines of theoretical inquiry which critical theorists in IR would do well to explore. Concretely, we draw on our ongoing research into feminist 'anti-globalisation' activism to rethink the nature of the subject of the politics of resistance, the conditions under which resistance emerges and how resistance is enacted and expressed. We begin by discussing the relationship of feminism to critical IR theory as a way of situating and explaining the focus and approach of our research project. We then summarise our key empirical arguments regarding the emergence, structure, beliefs, identities and practices of feminist 'anti-globalisation' activism before exploring the implications of these for a renewed critical theoretical agenda in IR