| Twitter Transparency Report shows DMCA and government actions: US is biggest busybody Jul 3rd 2012, 08:36  Twitter dispatched its first biannual Transparency Report -- revealing government requests for user info and content holdback along with DMCA takedown notices -- which spotlights the US as the most active by far. The company claimed it was aroused to action by Google, which has been doing it for the last two years and recently added copyright takedowns to its own reports. So far, Twitter says that while most nations requested user data 10 times or fewer, the US government made 679 such appeals, more than the entire rest of the world combined. It also showed how often it obeyed -- 75 percent of the time in the US; much less elsewhere -- and said that affected users are always notified unless the company is prohibited from doing so. As we also noted with Google's reports, DMCA takedowns were by far the most numerous requests, with 3,378 total affecting 5,874 users, and 599 offending items actually pulled (38 percent). Those appeals aren't broken down by company like Mountain View's, but if you think that Usher photo mashup you're using as an avatar might be a problem, check the source to see all the data. Twitter Transparency Report shows DMCA and government actions: US is biggest busybody originally appeared on Engadget on Tue, 03 Jul 2012 04:36:00 EDT. Please see our terms for use of feeds. Permalink |  Twitter | Email this | Comments | | Researchers use 3D printer, sugar, to create a fake artery network for lab-grown tissue Jul 3rd 2012, 08:07  Printing a chocolate heart is easy enough, but how about an actual organ? There are folks working on it, but it turns out those veins of yours aren't exactly a breeze to replicate. Researchers at the University of Pennsylvania and MIT may have found a semi-sweet solution -- dissolving a sugar lattice in a batch of living Jell-O. The research team uses a RepRap 3D printer and a custom extruder head to print a filament network composed of sucrose, glucose and dextran which is later encased in a bio-gel containing living cells. Once the confectionery paths are dissolved, they leave a network of artery-like channels in their void. Tissue living in the gel can then receive oxygen and nutrients through the hollow pipes. The research has been promising so far, and has increased the number of functional liver cells the team has been able to maintain in artificial tissues. These results suggest the technique could have future research possibilities in developing lab-grown organs. MIT Professor Sangeeta Bhatia, who helped conduct the effort, hopes to push the group's work further. "More work will be needed to learn how to directly connect these types of vascular networks to natural blood vessels while at the same time investigating fundamental interactions between the liver cells and the patterned vasculature. It's an exciting future ahead." Scientists at other labs could also get their mitts on the sweet templates since they're stable enough to endure shipping. Head past the break for a video of the innard infrastructure. Continue reading Researchers use 3D printer, sugar, to create a fake artery network for lab-grown tissue Researchers use 3D printer, sugar, to create a fake artery network for lab-grown tissue originally appeared on Engadget on Tue, 03 Jul 2012 04:07:00 EDT. Please see our terms for use of feeds. Permalink  Hack a Day | Nature, University of Pennsylvania | Email this | Comments | |
