Prosthetic hands can now feel

A 28-year-old who has been paralyzed for more than a decade as a result of a spinal cord injury has become the first person to be able to “feel” physical sensations through a prosthetic hand directly connected to his brain, and even identify which mechanical finger is being gently touched.The advance, made possible by sophisticated neural technologies developed under DARPA’s Revolutionizing Prosthetics points to a future in which people living with paralyzed or missing limbs will not only be able to manipulate objects by sending signals from their brain to robotic devices, but also be able to sense precisely what those devices are touching.“We’ve completed the circuit,” said DARPA program manager Justin Sanchez. “Prosthetic limbs that can be controlled by thoughts are showing great promise, but without feedback from signals traveling back to the brain it can be difficult to achieve the level of control needed to perform precise movements. By wiring a sense of touch from a mechanical hand directly into the brain, this work shows the potential for seamless bio-technological restoration of near-natural function.

Apply Magic Sauce – Cambridge University Prediction API that takes your Facebook likes and creates a predictive psych-demographic profile

his is a prediction of your psycho-demographic profile based on your Facebook Likes. It uses a snapshot of your digital footprint to visualise how others perceive you online and therefore may not be an entirely accurate picture of who you really are. You could take more psychometric tests as well and compare the results!

Source: Apply Magic Sauce – Prediction API – Test

How Ashley Madison Hid Its Fembot Con From Users and Investigators

The developers at Ashley Madison created their first artificial woman sometime in early 2002. Her nickname was Sensuous Kitten, and she is listed as the tenth member of Ashley Madison in the company’s leaked user database. On her profile, she announces: “I’m having trouble with my computer … send a message!”

Source: How Ashley Madison Hid Its Fembot Con From Users and Investigators

AI starts here!

Robot surgeons kill 144 patients, hurt 1,391, malfunction 8,061 times / 1.7 million

A team of university eggheads have counted up the number of medical cockups in America reported to the US Food and Drug Administration (FDA) from 2000 to 2013, and found there were 144 deaths during robot-assisted surgery, 1,391 injuries, and 8,061 counts of device malfunctions.

If that sounds terrible, consider that 1.7 million robo-operations were carried out between 2007 and 2013. Whether you’re impressed or appalled, the number of errors has the experts mildly concerned, and they want better safety mechanisms.

Taking Blue Screen of Death to another level

Source: Robot surgeons kill 144 patients, hurt 1,391, malfunction 8,061 times • The Register

It’s tricky to compare these robo-op figures to the error rate of pure-human surgeries for various dull reasons; one being that when mistakes are made, they’re often settled out of court and are never admitted. With a machine involved, someone can blame the hardware.

A Review on Night Enhancement Eyedrops Using Chlorin e6

it seems fair to say that this technique is successful in it claims for low light amplification in the human eye. These findings are subjective experiences. Subject experienced no adverse effects following administration. Preliminary testing seems to indicate this increase in dim light vision to be occurring

via A Review on Night Enhancement Eyedrops Using Chlorin e6 | Science for the Masses.

Homeopathy not effective for any medical condition

After a years-long review of hundreds of studies, Australia’s top medical research agency has concluded that homeopathy is essentially useless for treating any medical condition.

Researchers with the National Health and Medical Research Council conducted a review of published studies on homeopathy and report that they could not find any good quality evidence to support the claim that homeopathy works any better than a placebo or sugar pill.

Homeopathy is a centuries-old form of alternative medicine that has been dismissed as pseudoscience by many skeptics. It’s based on a premise that "like cures like." Practitioners believe that herbs and extracts that cause symptoms such as headaches in healthy people will also cure headaches if they are given in highly diluted forms.

via Homeopathy not effective for any medical condition: review | CTV News.

This Map Shows Where the Happiest and Unhappiest People Live in the US

All other things being equal, the south, parts of the west, and upper midwest are the happiest places in the United States according to a recent study.

Researchers from Harvard University and the University of British Columbia took data from the Centers for Disease Control and Prevention which asked 300,000 individuals to report on their life satisfaction each year between 2005 and 2009. The analysts took this data and other demographic variables to compare differences in happiness across regions, while controlling for things like employment status and income.

via This Map Shows Where the Happiest and Unhappiest People Live in the US.

People Can Be Convinced They Committed a Crime That Never Happened

Evidence from some wrongful-conviction cases suggests that suspects can be questioned in ways that lead them to falsely believe in and confess to committing crimes they didn’t actually commit. New research provides lab-based evidence for this phenomenon, showing that innocent adult participants can be convinced, over the course of a few hours, that they had perpetrated crimes as serious as assault with a weapon in their teenage years.

[…]

All participants need to generate a richly detailed false memory is 3 hours in a friendly interview environment, where the interviewer introduces a few wrong details and uses poor memory-retrieval techniques.”

via People Can Be Convinced They Committed a Crime That Never Happened – Association for Psychological Science.

Besides Lifestyle and Inherited Genes, Cancer Risk Also 66% Tied to Bad Luck

The researchers, from the Johns Hopkins University School of Medicine in Baltimore, analyzed published scientific papers to identify the number of stem cells, and the rate of stem-cell division, among 31 tissue types, though not for breast and prostate tissue, which they excluded from the analysis. Then they compared the total number of lifetime stem-cell divisions in each tissue against a person’s lifetime risk of developing cancer in that tissue in the U.S.

The correlation between these parameters suggests that two-thirds of the difference in cancer risk among various tissue types can be blamed on random, or “stochastic,” mutations in DNA occurring during stem-cell division, and only one-third on hereditary or environmental factors like smoking, the researchers conclude. “Thus, the stochastic effects of DNA replication appear to be the major contributor to cancer in humans,” they wrote.

via Besides Lifestyle and Inherited Genes, Cancer Risk Also Tied to Bad Luck – WSJ.

Antidepressants rapidly alter brain architecture

A single dose of a popular class of psychiatric drug used to treat depression can alter the brain’s architecture within hours, even though most patients usually don’t report improvement for weeks, a new study suggests.

More than 1 in 10 adults in the U.S. use these drugs, which adjust the availability of a chemical transmitter in the brain, serotonin, by blocking the way it is reabsorbed. The so-called Selective Serotonin Reuptake Inhibitors, or SSRIs, include Prozac, Lexapro, Celexa, Paxil and Zoloft.

via Antidepressants rapidly alter brain architecture, study finds – LA Times.

ads showing sexy women make male consumers less charitable

What happens when you use images of sexy women to attract men’s attention? According to a new study in the Journal of Consumer Research, male consumers who are shown images of sexy women feel less connected to other people and are less likely to purchase products advertised as benefiting others or make charitable contributions.

via Do ads showing sexy women make male consumers less charitable?.

Bradley Manning now Chelsea Manning

Bradley Manning of WikiLeaks fame is now a woman, which raises special problems for the US Military.

“The soldier has asked for hormone therapy and to be able to live as a woman.

The request was the first ever made by a transgender military inmate and set up a dilemma for the Defense Department: How to treat a soldier for a diagnosed disorder without violating long-standing military policy. Transgender people are not allowed to serve in the U.S. military and the Defense Department does not provide such treatment, but Manning can’t be discharged from the service while serving her 35-year prison sentence. […]

Defense Secretary Chuck Hagel last month gave the Army approval to try to work out a transfer plan with the Federal Bureau of Prisons, which does provide such treatment”

So it’s a breakout from military prison to go to a civil one…

Pentagon OKs Manning Transfer for Gender Treatment | Military.com.

What makes an image popular?

Using a dataset of about 2.3 million images from Flickr, we demonstrate that we can reliably predict the normalized view count of images with a rank correlation of 0.81 using both image content and social cues. In this paper, we show the importance of image cues such as color, gradients, deep learning features and the set of objects present, as well as the importance of various social cues such as number of friends or number of photos uploaded that lead to high or low popularity of images.

via What makes an image popular?.

The page also has a demo tool where you can upload your photo for a score.

Predicting Successful Memes using Network and Community Structure [on Twitter]

Lilian Weng, Filippo Menczer, Yong-Yeol Ahn from Cornell University have created a model that can take a small amount of tweets and tell 2 months in advance whether the tweets will go viral and become a meme or not.

This is a network based model, that takes into account:

connectivity: number of early adopters, size of first and second surfaces (uninfected neighbours of early adopters);
distance: path length between consecutive users, variability in path length and maximum path length between any 2 adopters;
community features: number of communities with at least 1 adopter, how tweets or adopters of a given meme are scattered or concentrated across communities and intra-community interaction;
growth rate features: time between steps in the path and the variability of this time.

Their model is compared to 5 other models and comes out favoribly.

Whether the model can be adapted to other social networks is unclear.

[1403.6199] Predicting Successful Memes using Network and Community Structure.