Archive for February 25th, 2012
Earlier today I presented a short webinar about some of my favorite Web 2.0 tools for teachers. The webinar was on behalf of Ed Tech Teacher for whom I facilitate in-person workshops from time to time. This summer I’ll be working with them quite a bit. You can see the list of their summer workshops here. A recording of today’s webinar will be available here shortly. If you just want to know what tools I shared in the webinar, you can view the slides below.
This paper addresses the long standing spectrum policy question surrounding how much of the future of wireless innovation will depend on exclusively-licensed spectrum, allocated by auction and traded in secondary markets, relative to how much will utilize bands in which open (unlicensed, dynamic frequency sharing, license-by-rule etc.) wireless systems are permitted. I review evidence from eight wireless markets: mobile broadband; wireless healthcare; smart grid communications; inventory management; access control; mobile payments; fleet management; and secondary markets in spectrum. I find that markets are adopting open wireless strategies in mission-critical applications, in many cases more so than they are building on licensed strategies. Eighty percent of wireless healthcare; seventy percent of smart grid communications; and forty to ninety percent of mobile broadband data to smartphones and tablets use open wireless strategies.
Population movements following disasters can cause important increases in morbidity and mortality. Without knowledge of the locations of affected people, relief assistance is compromised. No rapid and accurate method exists to track population movements after disasters. We used position data of subscriber identity module (SIM) cards from the largest mobile phone company in Haiti (Digicel) to estimate the magnitude and trends of population movements following the Haiti 2010 earthquake and cholera outbreak.