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Medicine

New MRI Studies Show SSRIs Bring Rapid Changes to Brain Function 3

Posted by timothy
from the depressing-thought-or-perhaps-not dept.
A story at the Los Angeles Times reports that researchers at the Max Planck Institute have found that Selective Serotonin Reuptake Inhibitors, various of which are widely used in anti-depressant medications, cause changes in healthy subjects' brain architecture just hours after ingestion. As the article mentions, one reason that this rapid change is surprising is that patients taking SSRIs to treat depression typically take considerably longer (weeks) to perceive a change in mood. A slice from the story: When more serotonin was available, this resting state functional connectivity decreased on a broad scale, the study found. This finding was not particularly surprising -- other studies have shown a similar effect in brain regions strongly associated with mood regulation. But there was a two-fold shock: Some areas of the brain appeared to buck the trend and become more interdependent. And all the changes were evident only three hours after the single dosage. ... The rapid connectivity shifts noted by the study might therefore be precursors to longer-term changes, perhaps starting with remodeling of synapses, the microscopic gaps where chemical neurotransmitters such as serotonin flood across to an adjacent brain cell, the study suggests. But this type of brain scanning can’t pick up changes at such a scale, so the hypothesis will have to be tested other ways[.] ... Study subjects did not have diagnoses of depression, so researchers will need to generate similar maps among those diagnosed with depression, and re-map them during and after depressive episodes, as well as after treatment, Sacher said. Comparisons might then show whether a certain initial architecture predicts treatment success.
Transportation

Trouble In Branson-Land, As Would-Be Space Tourists Get Antsy Over Delays 30

Posted by timothy
from the that's-only-a-few-months dept.
schwit1 (797399) writes "Rumors are flying that some of the individuals who gave Virgin Galactic deposits for space tourism flights on SpaceShipTwo are demanding their money back. It appears that the most recent delay, revealed by Branson on David Letterman, is the cause." How much would you pay to go to space, if the ticket was only good starting 10 years from now? How about 20? How about, as Branson claims, if it was early next year?

+ - Mark Zuckerberg Throws Pal Joe Green Under the Tech Immigration Bus

Submitted by theodp
theodp (442580) writes "A month after he argued that Executive Action by President Obama on tech immigration was needed lest his billionaire bosses at Mark Zuckerberg's FWD.us PAC have to hire 'just sort of OK' U.S. workers, Re/code reports that Joe Green — Zuckerberg's close friend and college roommate — has been pushed out of his role as President of FWD.us for failing to Git-R-Done on an issue critical to the tech community. "Today, we wanted to share an important change with you," begins 'Leadership Change', the announcement from the FWD.us Board that Todd Schulte is the new Green. So what sold FWD.us on Schulte? "His [Schulte's] prior experience as Chief-of-Staff at Priorities USA, the Super PAC supporting President Obama's re-election," assured Zuckerberg in a letter to FWD.us contributors, "will ensure FWD.us continues its momentum for reform." Facebook, reported the Washington Post in 2013, became legally "dependent" on H-1B visas and subject to stricter regulations shortly before Zuckerberg launched FWD.us with Green at the helm."
United States

Mark Zuckerberg Throws Pal Joe Green Under the Tech Immigration Bus 122

Posted by timothy
from the sorry-pal dept.
theodp (442580) writes "A month after he argued that Executive Action by President Obama on tech immigration was needed lest his billionaire bosses at Mark Zuckerberg's FWD.us PAC have to hire 'just sort of OK' U.S. workers, Re/code reports that Joe Green — Zuckerberg's close friend and college roommate — has been pushed out of his role as President of FWD.us for failing to Git-R-Done on an issue critical to the tech community. "Today, we wanted to share an important change with you," begins 'Leadership Change', the announcement from the FWD.us Board that Todd Schulte is the new Green. So what sold FWD.us on Schulte? "His [Schulte's] prior experience as Chief-of-Staff at Priorities USA, the Super PAC supporting President Obama's re-election," assured Zuckerberg in a letter to FWD.us contributors, "will ensure FWD.us continues its momentum for reform." Facebook, reported the Washington Post in 2013, became legally "dependent" on H-1B visas and subject to stricter regulations shortly before Zuckerberg launched FWD.us with Green at the helm."

+ - Is iOS 8 a pig?->

Submitted by kyjellyfish
kyjellyfish (1703658) writes "This submission is more of an "Ask Slashdot" question than a scoop, and is not intended to denigrate pigs. I've been using iOS 8 for several days and aside from a few gimmicks and add-ons that attempt to achieve parity with Android, my experience has been overwhelmingly unsatisfactory. My chief complaint is that the vast majority of my apps are slow to boot and noticeably sluggish in operation. I want to point out that all of these apps have been "upgraded" specifically for iOS 8 compatibility. Previous operating system upgrades have been relatively seamless, so I'm asking whether other slashdotters have experienced this degraded performance."
Link to Original Source

+ - Surveillance cameras will soon be reading lips

Submitted by ltorvalds11
ltorvalds11 (3774511) writes "Ahmad Hassanat, a scientist at a University in Jordan, has created an automated lip-reading system with a success rate of 76%. Though he admits there are many hurdles to making the technology perfect, in our surveillance-obsessed society, it's only a matter of time — especially when you consider the CIA is already seeking out lip-reading services."
IOS

Ask Slashdot: Is iOS 8 a Pig? 234

Posted by timothy
from the not-intended-to-denigrate-pigs dept.
kyjellyfish writes I've been using iOS 8 for several days and aside from a few gimmicks and add-ons that attempt to achieve parity with Android, my experience has been overwhelmingly unsatisfactory. My chief complaint is that the vast majority of my apps are slow to boot and noticeably sluggish in operation. I want to point out that all of these apps have been "upgraded" specifically for iOS 8 compatibility. Previous operating system upgrades have been relatively seamless, so I'm asking whether other slashdotters have experienced this degraded performance.

+ - 'Why I Hope to Die at 75'

Submitted by HughPickens.com
HughPickens.com (3830033) writes "Ezekiel J. Emanuel, director of the Clinical Bioethics Department at the US National Institutes of Health, writes at The Atlantic that there is a simple truth that many of us seem to resist: living too long renders many of us, if not disabled, then faltering and declining, a state that may not be worse than death but is nonetheless deprived. "It robs us of our creativity and ability to contribute to work, society, the world. It transforms how people experience us, relate to us, and, most important, remember us. We are no longer remembered as vibrant and engaged but as feeble, ineffectual, even pathetic." Emanuel says that he is isn't asking for more time than is likely nor foreshortening his life but is talking about the kind and amount of health care he will consent to after 75. "Once I have lived to 75, my approach to my health care will completely change. I won’t actively end my life. But I won’t try to prolong it, either." Emanuel says that Americans seem to be obsessed with exercising, doing mental puzzles, consuming various juice and protein concoctions, sticking to strict diets, and popping vitamins and supplements, all in a valiant effort to cheat death and prolong life as long as possible. "I reject this aspiration. I think this manic desperation to endlessly extend life is misguided and potentially destructive. For many reasons, 75 is a pretty good age to aim to stop.""
Encryption

Wired Profiles John Brooks, the Programmer Behind Ricochet 33

Posted by timothy
from the bouncy-bouncy dept.
wabrandsma writes with this excerpt from Wired: John Brooks, who is just 22 and a self-taught coder who dropped out of school at 13, was always concerned about privacy and civil liberties. Four years ago he began work on a program for encrypted instant messaging that uses Tor hidden services for the protected transmission of communications. The program, which he dubbed Ricochet, began as a hobby. But by the time he finished, he had a full-fledged desktop client that was easy to use, offered anonymity and encryption, and even resolved the issue of metadata—the "to" and "from" headers and IP addresses spy agencies use to identify and track communications—long before the public was aware that the NSA was routinely collecting metadata in bulk for its spy programs. The only problem Brooks had with the program was that few people were interested in using it. Although he'd made Ricochet's code open source, Brooks never had it formally audited for security and did nothing to promote it, so few people even knew about it.

Then the Snowden leaks happened and metadata made headlines. Brooks realized he already had a solution that resolved a problem everyone else was suddenly scrambling to fix. Though ordinary encrypted email and instant messaging protect the contents of communications, metadata allows authorities to map relationships between communicants and subpoena service providers for subscriber information that can help unmask whistleblowers, journalists's sources and others.

+ - The Raid-Proof Hosting Technology Behind 'The Pirate Bay'

Submitted by HughPickens.com
HughPickens.com (3830033) writes "Ernesto reports at TorrentFreak that despite its massive presence the Pirate Bay doesn't have a giant server park but operates from the cloud, on virtual machines that can be quickly moved if needed. The site uses 21 “virtual machines” (VMs) hosted at different providers, up four machines from two years ago, in part due to the steady increase in traffic. Eight of the VM's are used for serving the web pages, searches take up another six machines, and the site’s database currently runs on two VMs. The remaining five virtual machines are used for load balancing, statistics, the proxy site on port 80, torrent storage and for the controller. In total the VMs use 182 GB of RAM and 94 CPU cores. The total storage capacity is 620 GB. One interesting aspect of The Pirate Bay is that all virtual machines are hosted with commercial cloud hosting providers, who have no clue that The Pirate Bay is among their customers. "Moving to the cloud lets TPB move from country to country, crossing borders seamlessly without downtime. All the servers don’t even have to be hosted with the same provider, or even on the same continent." All traffic goes through the load balancer, which masks what the other VMs are doing. This also means that none of the IP-addresses of the cloud hosting providers are publicly linked to TPB. For now, the most vulnerable spot appears to be the site’s domain. Just last year TPB burnt through five separate domain names due to takedown threats from registrars. But then again, this doesn’t appear to be much of a concern for TPB as the operators have dozens of alternative domain names standing by."
ISS

SpaceX Launches Supplies to ISS, Including Its First 3D Printer 97

Posted by timothy
from the from-fantasy-to-routine dept.
A "flawless" launch early Sunday from Cape Canaveral has sent a load of supplies on its way to the International Space Station aboard a Falcon 9-lofted SpaceX Dragon capsule. Food, care packages and provisions for NASA's astronauts make up more than a third of the cargo onboard Dragon. But the spacecraft also has experiments and equipment that will eventually help scientists complete 255 research projects in total, according to NASA. In Dragon's trunk, there's an instrument dubbed RapidScat, which will be installed outside the space station to measure the speed and direction of ocean winds on Earth. Among the commercially funded experiments onboard Dragon is a materials-science test from the sports company Cobra Puma Golf designed to build a stronger golf club. Dragon is also hauling the first space-grade 3D printer, built by Made in Space, which will test whether the on-the-spot manufacturing technology is viable without gravity.

Google News Sci Tech: Arctic ice cap in a 'death spiral' - The Australian->

From feed by feedfeeder

USA TODAY

Arctic ice cap in a 'death spiral'
The Australian
THE Arctic ice cap has melted so much that open water is now just 560km from the North Pole, the shortest distance recorded, according to scientists. Satellite observations last week from the US National Snow and Ice Data Centre coincide with a prediction...
While Antarctica's Seas Cool Down, The Arctic Ice DwindlesLatinos Health
NASA keeping close eye on Arctic climateFox News

all 85 news articles

Link to Original Source

Google News Sci Tech: SpaceX Launches Dragon Cargo Ship for NASA - Discovery News->

From feed by feedfeeder

Fox News

SpaceX Launches Dragon Cargo Ship for NASA
Discovery News
A SpaceX Falcon 9 rocket launches from the Cape Canaveral Air Force Station in Florida with a science-packed Dragon spacecraft on the fourth NASA-contracted resupply mission for the International Space Station, Sept. 21, 2014. NASA. Gallery.
Launch brings new technology that could change life in spaceCNN
SpaceX launches first 3-D printer and supplies to space stationCTV News
Launch brings new technology to spaceWMTW Portland
USA TODAY-Capital OTC
all 687 news articles

Link to Original Source
Open Source

Fork of Systemd Leads To Lightweight Uselessd 269

Posted by timothy
from the not-big-and-fancy dept.
An anonymous reader writes A boycott of systemd and other backlash around systemd's feature-creep has led to the creation of Uselessd, a new init daemon. Uselessd is a fork of systemd 208 that strips away functionality considered irrelevant to an init system like the systemd journal and udev. Uselessd also adds in functionality not accepted in upstream systemd like support for alternative C libraries (namely uClibc and musl) and it's even being ported to BSD.

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