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The invention makes use of optogenetics, a technique in which the DNA that codes for a light-sensitive protein is inserted into certain cells, enabling those cells to be activated by pulses of light. Researchers often use this method to study neurons in the brain, but in this case the researchers altered flies' heart cells. Then they activated those cardiac cells using pulses of light, causing them to contract in time with the pulses (abstract). Voila, they had an optical pacemaker that worked on living adult fruit flies.
Don't worry, no one can control your heartbeat with a laser just yet. That would require inserting foreign DNA into your heart cells, and also finding a way to shine light through the impediment of your flesh and bones. But lead researcher Chao Zhou of Lehigh University is working on it.
One of the most remarkable things about Microsoft's growing presence in the hardware business is that it has not led to open revolt among its partners. Initially, many of them were not happy about Microsoft's moves, complaining in private. "It's positioned as a laptop, very squarely against the MacBook Pro as an example. But that could also be extended to a Dell XPS 13, or an HP x360," says Patrick Moorhead. One reason there hasn't been more pushback from OEMs is that Microsoft's Surface business is still relatively small. Another is that the money Microsoft has poured into marketing Surface has raised the broader profile of Windows PCs. While Microsoft obviously risks alienating its partners, it's doing so with a much bigger fight in mind. "Right now Microsoft really believes that it has to have a combined hardware, software, and services play to go up against the likes of Apple," says Moorhead. "That's why it's doing this. That's why it's taking such an aggressive stance now, moving to laptops."
Most of the 370,000 children in Fukushima prefecture (state) have been given ultrasound checkups since the March 2011 meltdowns at the tsunami-ravaged Fukushima Dai-ichi nuclear plant. The most recent statistics, released in August, show that thyroid cancer is suspected or confirmed in 137 of those children, a number that rose by 25 from a year earlier. Elsewhere, the disease occurs in only about one or two of every million children per year by some estimates."
From the article: "If [Raboud's] initial comments about lack of interest in LSB were not evidence enough, a full three months then went by with no one offering any support for maintaining the LSB-compliance packages and two terse votes in favor of dropping them. Consequently, on September 17, Raboud announced that he had gutted the src:lsb package (leaving just lsb-base and lsb-release as described) and uploaded it to the "unstable" archive. That minimalist set of tools will allow an interested user to start up the next Debian release and query whether or not it is LSB-compliant—and the answer will be 'no.'"