technology

Every year, traffic accidents kill more than a million people and injure close to 50 million around the world. As tragic and needless as these deaths are, they’re expected to increase over time: By 2020, traffic crashes will be third in the world ranking of burden of disease, as measured in disability-adjusted life years.

Plastic trash is a potential — and plentiful — fuel source, but up to the present many regions of the United States have been reluctant to adopt waste-to-energy technologies. Among the reasons are the availability of relatively cheap land for trash disposal, recyclers who viewed such programs as potential threats, and resistance by local homeowners.

Note: A 2011 report on this topic has been issued that updates the findings below.

Since cell phones were first popularized in the 1980s, questions have been raised over their potential health risks. In the past 10 years, numerous observational studies have been released suggesting harmful links to brain function and sleep patterns, and to heart palpitations and various forms of cancer. Often, however, other studies have arrived at opposing conclusions.

A growing number of studies have examined how search engine and social media activity can be used to document current social trends and predict future patterns. Indeed, research literature has found that activity registered in Google Trends and Twitter chat can help predict various kinds of consumer and social data, including consumer goods marketability, the success of movies pending release and disease outbreaks.

The widespread adoption of Twitter as a platform on which to talk about politics and advocate for candidates has changed the way campaign operatives think about strategy — and the way that many citizens engage in the campaign.

Rare-earth minerals are essential to the production of high-tech items such as smart phones and laptops, and they are being increasingly utilized for a variety of purposes in the defense and clean energy sectors. These include elements such as lanthanum, used in camera lenses; praseodymium, for lasers and magnets; and promethium, used in atomic batteries.

Broadband access is widely regarded as a critical driver of economic growth and a potentially transformative force in education, government services, public safety and health care. Nevertheless, the United States lags other developed nations in broadband Internet access, particularly in rural areas.