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The 'temporary tattoo' that will warn you if you are too drunk to drive

Daily Mail - Science & tech

A new kind of'temporary tattoo' could help prevent drunk driving incidents, researchers claim. Scientists have created a disposable sticky circuit board, which can be applied to the skin, to measure a wearer's alcohol levels. These results are then sent to wearer's smartphone to tell them if they have had one too many drinks. The disposable sticky circuit board (pictured), which can be applied to the skin, is able to measure a wearer's alcohol levels, before sending a result to their phone to tell them if they are intoxicated The device comprises a tattoo that sticks to the skin and a magnetic circuit board that attaches to it. Silver and silver chloride electrodes are printed onto commercial tattoo paper, which generate a small amount of current for five minutes.


Where Sensors Make Sense

AITopics Original Links

The idea of tiny, ubiquitous computers monitoring us and our environments from every nook and cranny might alarm a few civil libertarians – but this is exactly the concept driving researchers who are trying to perfect networks of smart, wireless sensors. They envision sensors sprinkled across a battlefield to warn of an enemy advance, or attached to pill bottles to alert caregivers to when an elderly patient takes (or doesn't take) his or her medication. They imagine faulty equipment in manufacturing plants that reports its own failures. In short, they see a pervasive grid of smart sensors that monitor, analyze, and network the bits and bytes of life. For years, these networks have remained largely in the prototype stage, not quite ready to hit the market.


Beats concentration

BBC News

As the academic year gets under way, students will be returning to their work. But while some can happily crank out an essay against the backdrop of their favourite tunes, others look on bemused - wondering how intense concentration can be combined with the apparent distraction of music. So why is it some people can happily soundtrack their studying while others demand total silence?


Machine Learning for a Low-cost Air Pollution Network

#artificialintelligence

We consider the example of a deployment of an air pollution monitoring network in Kampala, an East African city. Air pollution contributes to over three million deaths globally each year(Lelieveld and others, 2015). Kampala has one of the highest concentrations of fine particulate matter (PM 2.5) of any African city Mead (2017) Hence we know little about its distribution or extent. Lower cost devices do exist, but these do not, on their own, provide the accuracy required for decision makers. In our case study, the Kampala network of sensors consists largely of low cost optical particle counters (OPCs) that give estimates of the PM2.5 particulate concentration.


Air conditioning reduces in-car pollution by 34%

Daily Mail - Science & tech

While sitting in your car during the daily commute may seem fairly harmless, drivers are exposed to huge amounts of air pollution while in their vehicle. But scientists believe they may have found a simple way to reduce this in-car pollution. In a new study, researchers discovered that using air conditioning can reduce the amount of pollutants in the car by up to 34 per cent. The researchers used portable instruments and sensors to monitor and measure the pollutant levels of a car's indoor cabin air and the air directly outside the car during their own daily commutes. The cars were fitted with dashcams, allowing the researchers to identify a given pollutant concentration each time they were stuck behind a bus or truck, in traffic on a freeway, stopped at a red light, or driving past restaurants or construction sites.