South Korea's renewed focus on space weather

Renewed focus on preventing gastric cancer.

can get away with—because they can,” said Hagop Kantarjian, M.D., a leukemia researcher at the University of Texas M. D. Anderson Cancer Center in Houston, who also writes about this topic. “Drug companies are increasing drug prices to the extent it is harming our patients. Advocating for lower drug prices is a necessity to save the lives of patients who can’t afford them.” Elsewhere, Kantarjia...

A renewed focus on primary health care: revitalize or reframe?

The year 2008 celebrated 30 years of Primary Health Care (PHC) policy emerging from the Alma Ata Declaration with publication of two key reports, the World Health Report 2008 and the Report of the Commission on the Social Determinants of Health. Both reports reaffirmed the relevance of PHC in terms of its vision and values in today's world. However, important challenges in terms of defining PHC...

Space Weather Effects on Communications

An overview of historical and contemporary impacts of the solar and geospace environments on communications systems. Abstract In the last century and one-half, since the invention and deployment of the first electrical communication system – the electrical telegraph, the variety of communications technologies that can be affected by natural processes occurring on the Sun and in the space enviro...

Focus on South Africa

The impact of space weather on communication

As a preliminary to the studies conducted by the individual Working Groups, a review has been undertaken of topics which are relevant to the space-weather phenomena that can occur. The ways in general that these can influence the state of the ionosphere are discussed. The various changes in propagation parameters that arise on Earth-space and terrestrial radio paths via the ionosphere are liste...