Challenges to providing HIV prevention education to youth with disabilities in South Africa

Purpose: In South Africa, little is known how HIV prevention education is implemented in schools for learners with disabilities. This article reports on findings from a study exploring the extent to which HIV education is reached to people with disabilities in South Africa, and the challenges faced by educators providing HIV prevention education to learners with disabilities. Method: A survey questionnaire completed by 34 schools for learners with special education needs in the Western Cape province of South Africa. Additional complimentary data were collected through interviews with a total of 21 members of staff at schools for learners with disabilities. Results: Respondents recognise the importance of providing HIV prevention education for people with disabilities. Staff reports some challenges in providing HIV prevention education: barriers to communication; discomfort about issues of sexuality and disability; disagreements among staff about what is appropriate content for sexual health education; and fears of promoting sexual activity. Conclusions: There is a need for HIV prevention education to be specifically customized to the needs of the specific population. A general programme, which is included as part of a general curriculum and generally tailored to “mainstream” schools, would need to be adapted according to specific needs and disabling barriers faced

Subtidal macrozoobenthos communities from northern Chile during and post El Niño 1997–1998

Despite a large amount of climatic and oceanographic information dealing with the recurring climate phenomenon El Niño (EN) and its well known impact on diversity of marine benthic communities, most published data are rather descriptive and consequently our understanding of the underlying mechanisms and processes that drive community structure during EN are still very scarce. In this study, we address two questions on the effects of EN on macrozoobenthic communities: (1) how does EN affect species diversity of the communities in northern Chile? and (2) is EN a phenomenon that restarts community assembling processes by affecting species interactions in northern Chile? To answer these questions, we compared species diversity and co-occurrence patterns of soft-bottoms macrozoobenthos communities from the continental shelf off northern Chile during (March 1998) and after (September 1998) the strong EN event 1997–1998. The methods used varied from species diversity and species co-occurrence analyses to multivariate ordination methods. Our results indicate that EN positively affects diversity of macrozoobenthos communities in the study area, increasing the species richness and diversity and decreasing the species dominance. EN represents a strong disturbance that affects species interactions that rule the species assembling processes in shallow-water, sea-bottom environments

Long-Term Climate Forcing in Loggerhead Sea Turtle Nesting

The long-term variability of marine turtle populations remains poorly understood, limiting science and management. Here we use basin-scale climate indices and regional surface temperatures to estimate loggerhead sea turtle (Caretta caretta) nesting at a variety of spatial and temporal scales. Borrowing from fisheries research, our models investigate how oceanographic processes influence juvenile recruitment and regulate population dynamics. This novel approach finds local populations in the North Pacific and Northwest Atlantic are regionally synchronized and strongly correlated to ocean conditions—such that climate models alone explain up to 88% of the observed changes over the past several decades. In addition to its performance, climate-based modeling also provides mechanistic forecasts of historical and future population changes. Hindcasts in both regions indicate climatic conditions may have been a factor in recent declines, but future forecasts are mixed. Available climatic data suggests the Pacific population will be significantly reduced by 2040, but indicates the Atlantic population may increase substantially. These results do not exonerate anthropogenic impacts, but highlight the significance of bottom-up oceanographic processes to marine organisms. Future studies should consider environmental baselines in assessments of marine turtle population variability and persistence

Gender differences in HIV knowledge and unsafe sexual behaviours among disabled people in South Africa

Purpose: The international literature suggests that disabled people may be at increased risk for HIV infection. There is a growing increasing recognition of this in South Africa, although there remains a paucity of literature on how disabled people are affected by HIV/AIDS. This is a concern given the seriousness of the epidemic here. This paper reports on descriptive data exploring gender differences in HIV knowledge and unsafe sexual behaviours among disabled individuals in South Africa. Method: Data was collected by means of a survey questionnaire from a total sample of 285 disabled individuals in three of the nine provinces in South Africa. Data was analysed by means of descriptive statistics. Results: There are low levels and uncertainty of knowledge about HIV transmission and HIV prevention, with females tending to have lower levels of knowledge than males. Although the importance of condoms in HIV prevention was recognised, there were relatively high levels of reported unsafe sexual behaviours. Males reported higher number of monogamous and concurrent sexual partnerships and sex without a condom after alcohol use. Conclusions: The results support the literature that suggests that disabled people are at risk for HIV infection, and that both male and female individuals with disability are at risk

The Dispersal of the Amazon\u27S Water

The Amazon is the largest river system in the world, contributing about 6 × 1012 m3 of fresh water to the tropical Atlantic each year1,2. This is about 16% of the annual discharge into the world\u27s oceans. Yet the fate of this water and of the dissolved and particulate material discharged with it3,4 has remained unclear. Previous observations of 300-km diameter lenses of Amazon water off South America2,5 and a plume that extends into the Atlantic6,7 indicate some offshore movement, but the relationship of these and alongshore currents has remained obscure. New information, obtained with NASA\u27s Coastal Zone Color Scanner (CZCS) and with drifting buoys, reveals that the discharge of the Amazon is carried offshore around a retroflection of the North Brazil Current and into the North Equatorial Countercurrent towards Africa between June and January each year. From about February to May the countercurrent and the retroflection weaken or vanish, and Amazon water flows northwestward towards the Caribbean Sea