Developments in computer and communication technologies over the past ten years aptly support the use of the term global village to describe the present worldwide provision and distribution of information. These technologies are increasingly being employed in Africa, but their presence is not widespread and evenly distributed. Librarians in Africa are establishing the basic tools and organizati...

82  © Japi • January 2014 • Vol. 62 Sir, R denervation (RD) is a catheter based method using radiofrequency ablation(RFA)for treatment of patients with resistant hypertension. T h e d a t a f r o m t w o c l i n i c a l trials(Symplicity HTN-1 and Symplicity HTN-2) has proven the safety and efficacy of RD for treating the patients with resistant hypertension.1,2 Symplicity HTN-1 was a non-rand...

Motivated by the need to cope with floods of data, algorithm design is undergoing profound changes. Self-improvement, online property-preserving filtering, uncertainty, sublinearity and property testing are all parts of the story. I will discuss some of these exciting developments with an emphasis on its geometric aspects.