From Ars Technica: Louisiana sex offenders must identify themselves on Facebook

Starting August 1, a new Louisiana state law will require sex offenders to disclose their status on social networks. But in theory, that shouldn’t be necessary: Facebook and other social networks’ existing policies already forbid registered sex offenders from creating accounts.

“I don’t want to leave in the hands of social network or Facebook administrators, ‘Gee, I hope someone is telling the truth,'” State Rep. Jeff Thompson told CNN Tuesday. “This is another tool for prosecutors.”

The new bill, formally known as Act 385, was signed into law by Gov. Bobby Jindal earlier this month.

 

from Ars Technica

From Ars Technica: Write speeds for phase-change memory reach record limits

DRAM in computers is erased when a computer is turned off.

By pre-organizing atoms in a bit of phase-change memory, information can be written in less than one nanosecond, the fastest for such memory. With write speeds comparable to the memory that powers our computers, phase change memory could one day help computers boot up instantly.

Phase-change memory stores information based on the organization of atoms in a material, often a mixture of germanium, antimony, and tellurium (Ge2Sb2Te5 or GST). A voltage pulse heats the metal and disordered atoms in the crystal rearrange into an ordered crystal. Restoring the disordered arrangement by melting the metal erases the information. A computer reads each bit by detecting the lower electrical resistance of the ordered crystal.

Micron sells small phase-change memory (PRAM) chips. Companies like IBM and Samsung are working on PRAM chips too.

 

from Ars Technica

From Ars Technica: Hospitals can save money just sorting their trash

A report recently published in the Canadian Medical Association Journal suggests that hospitals could save considerable sums of money by adopting a handful of common sense measures to reduce waste. The report asserts that 50 to 85 percent of regular waste is incorrectly disposed of as biohazard waste, which is estimated to cost eight times more to process. This alone can result in a hospital spending tens of thousands of dollars per year in unnecessary costs.

Operating rooms are responsible for between a fifth and a third of a hospital’s waste while consuming a much smaller proportion of a hospital’s budget. It’s on the operating room that Yoan Kagoma MD and co-authors from University of Western Ontario’s medical school have fixed their gaze. Using 65 prior studies, the team has come up with a series of money-saving waste management recommendations for hospitals and health care institutions.

The single most effective cost-saving measure a hospital can adopt is to ensure that its waste is properly segregated, the report claims. Biohazard waste costs an estimated $963 per ton to process compared to the $121 per ton for regular waste. At most, biohazard waste should make up 15 percent of a hospital’s waste. But the report claims that, due to a simple “lack of awareness” among hospital staff, between 50-85 percent of the remaining non-hazardous waste is disposed of in the same costly manner (though it should be noted this finding is based on a paper published in 1996). By properly segregating waste in its operating rooms, the University of Pittsburgh’s Magee-Womens Hospital saved more than $89,000 in 2010.

 

from Ars Technica