Creating a learning culture in rural schools via educational satellite television broadcasts

Abstract

Globalisation is increasingly placing greater pressure on economies of countries to become competitive and to develop higher levels of skills. In order to compete effectively on a global level, education and development must be based on a good foundation. Although formal education in South Africa is presently reaching the majority of children between the ages of seven and fifteen years, actual educational attainment is low. According to the Third International Mathematics and Science Study, South African pupils performed poorly in Mathematics and Physical Science compared to other participating countries.

This low attainment could be addressed by stimulating a learning culture through the medium of telematics. There have been a number of such nationwide initiatives aimed at transforming the country into a 'knowledge-based society' through the use of ICTs. One such initiative is the University of Pretoria's 'TeleTuks' educational satellite broadcasts to schools.

This article concentrates on the benefits of tele-education for schools participating in TeleTuks as perceived by teachers and by learners. This study was also done to determine to what extent schools are able to participate in the various ICT-related options available; and what problems participating schools are experiencing. It was found that satellite TV is effective in supplementing classroom education by fostering an interactive learning culture, although it has not been utilised and implemented widely enough.     

A New US-Sino Space Relationship: Moving Toward Cooperation 1

Since the late 1990's the United States has maintained a strict policy of no cooperation with China on space activities. The reasons for that are several, including the desire to inhibit the development of dual-use technology considered potentially threatening to the United States and political reluctance to work with a communist country. Increasingly, however, it has become clear that policy is not constraining China from dual-use technology development and that the policy overall may be detrimental to U.S. security interests. Therefore a policy change, from a realistic consideration of circumstances, must be considered.     

BIS/BAS Variables as Moderators of the Rumination-Intimate Partner Violence Link

Although cognitive rumination is related to violence perpetration, not all people who ruminate become violent. Four personality variables—impulsivity, anxiety, anger-in, anger-out—were tested as possible moderators of the link between the tendency to ruminate and the frequency of intimate partner violence (IPV). Variables related to the Behavioral Activation System (anger-out and impulsivity) were predicted to strengthen the rumination-IPV link; whereas measures related to the Behavioral Inhibition System (anger-in and anxiety) would suppress this link. As predicted, anger-out, anger-in, and impulsivity moderated the relation between rumination and IPV. No evidence was found for suppressor variables. Thus, appetitive drives appear to amplify the effect of rumination on violence. Clinically, therapeutic techniques that address rumination, anger, and impulsivity may help to reduce IPV risk.     

Forensic DNA analysis on microfluidic devices: a review

The advent of microfluidic technology for genetic analysis has begun to impact forensic science. Recent advances in microfluidic separation of short-tandem-repeat (STR) fragments has provided unprecedented potential for improving speed and efficiency of DNA typing. In addition, the analytical processes associated with sample preparation--which include cell sorting, DNA extraction, DNA quantitation, and DNA amplification--can all be integrated with the STR separation in a seamless manner. The current state of these microfluidic methods as well as their advantages and potential shortcomings are detailed. Recent advances in microfluidic device technology, as they pertain to forensic DNA typing, are discussed with a focus on the forensic community.     

Is breast really best? Risk and total motherhood in the National Breastfeeding Awareness Campaign

From June 2004 to April 2006, cosponsored by the U.S. Department of Health and Human Services and the Ad Council, the National Breastfeeding Awareness Campaign (NBAC) warned women that not breast-feeding put babies at risk for a variety of health problems. "You'd never take risks before your baby is born. Why start after?" asked televised public service announcements over images of pregnant women logrolling and riding a mechanical bull. The NBAC, and particularly its message of fear, neglected fundamental ethical principles regarding evidence quality, message framing, and cultural sensitivity in public health campaigns. The campaign was based on research that is inconsistent, lacks strong associations, and does not account for plausible confounding variables, such as the role of parental behavior, in various health outcomes. It capitalized on public misunderstanding of risk and risk assessment by portraying infant nutrition as a matter of safety versus danger and then creating spurious analogies. It also exploited deep-seated normative assumptions about the responsibility that mothers have to protect babies and children from harm and was insufficiently attentive to the psychological, socioeconomic, and political concerns of its intended audience. Critical analysis of the NBAC suggests that future health campaigns would benefit from more diverse review panels and from a greater focus on providing accurate risk information about probabilities and trade-offs in order to enable informed decision making.     

Social Networks of Homeless Youth in Emerging Adulthood

Little is known about the social networks of homeless youth in emerging adulthood despite the importance of this information for interventions to reduce health risks. This study examined the composition of social networks, and the risks and supports present within them, in a random sample of 349 homeless youth (33.4% female, 23.9% African American, 17.7% Hispanic) between the ages of 18 and 24. Social network members who were met on the street were among the most likely to be perceived as engaging in risky sex, as well as to engage in substance use with the youth. Youth were more likely to count on relatives and sex partners for support compared to other network members, but they also were more likely to use substances with sex partners and perceived them as engaging in risky sex. Interventions may need to recognize the importance of intimate relationships during the developmental stage of emerging adulthood by enhancing supportive bonds and reducing substance use and risky sex in these relationships.