More than 200 people have been arrested, but incidents continue sporadically

US, Russia, China, Israel, India and Pakistan are not participating in Ireland conference

Lobbyists argue the weapons kill and maim indiscriminately in Africa and elsewhere

Rebels return to negotiations with government in Bujumbura

As every month progresses, and salaries cover fewer and fewer daily expenses, private vehicles are becoming less visible on streets of  Dakar

Movement for Democratic Change says military was planning to use 18 snipers against Morgan Tsvangirai, who delayed his return from abroad because of alleged plot

Mobile phones, along with Internet access, are part of a communications revolution that is helping boost income and stop the spread of disease in emerging economies

Technological innovations help improve agricultural production - from empowering farmers in India to breeding more nutritious food staple crops

Development agencies and non-profit groups promote the use of 'appropriate technology,' which usually requires fewer resources and is easier to maintain in less developed regions

Text messaging, the Internet and other innovations have wide-ranging social repercussions