Medicine

Activity Trackers May Undermine Weight Loss Efforts, Says Study (sciencedaily.com) 210

schwit1 quotes a report from New York Times: Wearable activity monitors can count your steps and track your movements, but they don't, apparently, help you lose weight. In fact, you might lose more weight without them. The fascinating finding comes from a study published today in JAMA that found dieting adults who wore activity monitors for 18 months lost significantly fewer pounds over that time than those who did not. The results suggest that activity monitors may not change our behavior in the way we expected (warning: may be paywalled), and raise interesting questions about the tangled relationships between exercise, eating, our willpower and our waistlines. Specifically, the study found that participants who used wearable devices reported an average weight loss of 7.7 pounds, compared to the 13 pounds lost by those who didn't use the devices and only used health counseling. "While usage of wearable devices is currently a popular method to track physical activity -- steps taken per day or calories burned during a workout -- our findings show that adding them to behavioral counseling or weight loss that includes physical activity and reduced calorie intake does not improve weight loss or physical activity engagement. Therefore, within this context, these devices should not be relied upon as tools for weight management in place of effective behavioral counseling for physical activity and diet," said John Jakicic, the study's lead researcher and chair of Pitt's Department of Health and Physical Activity.
AI

MIT Scientists Use Radio Waves To Sense Human Emotions (cnn.com) 91

An anonymous reader quotes a report from CNNMoney: Researchers at the MIT Computer Science and Artificial Intelligence Laboratory have developed a device that uses radio waves to detect whether someone is happy, sad, angry or excited. The breakthrough makes it easier to accomplish what scientists have tried to do for years with machines: sense human emotions. The researchers believe tracking a person's feelings is a step toward improving their overall emotional well-being. The technology isn't invasive; it works in the background without a person having to do anything, like wearing a device. The device called EQ-Radio, which was detailed in a paper published online Tuesday, resembles a shoebox, as of now. It works by bouncing wireless signals off a person. These signals are impacted by motion, such as breathing and heartbeats. When the heart pumps blood, a force is exerted onto our bodies, and the skin vibrates ever so slightly. After the radio waves are impacted by these vibrations, they return to the device. A computer then analyzes the signals to identify changes in heartbeat and breathing. The researchers demonstrated their system detects emotions on par with an electrocardiogram (EKG), a common wearable device medical professionals use to monitor the human heart. The machine's analysis of the radio waves relies on artificial intelligence, which learns how various heartbeats indicate certain emotions. As a part of the testing, the machine bounced radio waves off actors who recreated a range of emotions. The more emotions the machine experienced, the better it identified what signals, such as a fast heartbeat, gave away their true feelings. By monitoring radio waves reflected off people who are happy, the machine is exposed to certain signs -- such as heart rate or a type of breathing -- associated with being in good spirits.
Patents

Apple Patents a Paper Bag (theguardian.com) 202

mspohr writes: Continuing its leadership in innovation, Apple has patented a paper bag. We all remember the groundbreaking "rounded corners" innovation, now we have a paper bag! Just try to make your own paper bag and you'll be speaking with Apple lawyers. (Note: In fairness to Apple, this is a "special" paper bag which is stronger due to numerous improvements on your ordinary recycled paper bag -- just don't try to copy it.) The patent application summarizes the bag as follows: "A paper bag is disclosed. The paper bag may include a bag container formed of white solid bleached sulfate paper with at least 60% post-consumer content." Apple's patented paper bags are designed to be sturdy, while remaining "both pearly white and environmentally friendly." Let's just hope they don't remove the handles...
Medicine

Microsoft Will 'Solve' Cancer Within The Next 10 Years By Treating It Like A Computer Virus, Says Company (independent.co.uk) 259

Microsoft is serious about finding a cure for cancer. In June, Microsoft researchers published a paper that shows how analyzing online activities can provide clues as to a person's chances of having cancer. They were able to identify internet users who had pancreatic cancer even before they'd been diagnosed, all from analyzing web query logs. Several months later, researchers on behalf of the company now say they will "solve" cancer within the next 10 years by treating it like a computer virus that invades and corrupts the body's cells. The goal is to monitor the bad cells and potentially reprogram them to be healthy again. The Independent reports: The company has built a "biological computation" unit that says its ultimate aim is to make cells into living computers. As such, they could be programmed and reprogrammed to treat any diseases, such as cancer. In the nearer term, the unit is using advanced computing research to try and set computers to work learning about drugs and diseases and suggesting new treatments to help cancer patients. The team hopes to be able to use machine learning technologies -- computers that can think and learn like humans -- to read through the huge amounts of cancer research and come to understand the disease and the drugs that treat it. At the moment, so much cancer research is published that it is impossible for any doctor to read it all. But since computers can read and understand so much more quickly, the systems will be able to read through all of the research and then put that to work on specific people's situations. It does that by bringing together biology, math and computing. Microsoft says the solution could be with us within the next five or ten years.
Earth

A Shocking Amount of E-Waste Recycling Is a Complete Sham (vice.com) 166

An anonymous reader quotes a report from Motherboard: Forty percent of all U.S. electronics recyclers testers included in [a study that used GPS trackers to follow e-waste over the course of two years] proved to be complete shams, with our e-waste getting shipped wholesale to landfills in Hong Kong, China, and developing nations in Africa and Asia. The most important thing to know about the e-waste recycling industry is that it is not free to recycle an old computer or an old CRT television. The value of the raw materials in the vast majority of old electronics is worth less than it costs to actually recycle them. While consumers rarely have to pay e-waste recycling companies to take their old electronics (costs are offset by local tax money or manufacturers fronting the bill as part of a legally mandated obligated recycling quota), companies, governments, and organizations do. Based on the results of a new study from industry watchdog Basel Action Network and MIT, industry documents obtained by Motherboard, and interviews with industry insiders, it's clear that the e-waste recycling industry is filled with sham operations profiting off of shipping toxic waste to developing nations. Here are the major findings of the study and of my interviews and reporting: Real, environmentally sustainable electronics recycling can be profitable only if recycling companies charge a fee to take on old machines; the sale of recycled materials rarely if ever covers the actual cost of recycling in the United States. Companies, governments, and other organizations have a requirement to recycle old machines; because there is little oversight or enforcement, a secondary industry of fake recyclers has popped up to undercut sustainable recyclers. These "recyclers," which advertise themselves as green and sustainable, get paid pennies per pound to take in old TVs, computers, printers, and monitors. Rather than recycle them domestically, the recycling companies sell them to junkyards in developing nations, either through middlemen or directly. These foreign junkyards hire low-wage employees to pick through the few valuable components of often toxic old machines. The toxic machines are then left in the scrapyards or dumped nearby. Using GPS trackers, industry watchdog Basel Action Network found that 40 percent of electronics recyclers it tested in the United States fall into this "scam recycling" category.
Education

Kindergarteners Today Get Little Time To Play, and It's Stunting Their Development (qz.com) 228

Christopher Brown Associate professor, University of Texas at Austin, writes:Researchers have demonstrated that five-year-olds are spending more time engaged in teacher-led academic learning activities than play-based learning opportunities that facilitate child-initiated investigations and foster social development among peers.During his research and investigation, Brown found that a typical kindergarten classroom sees kids and one teacher with them almost the entire school day. During this period, they engage in about 15 different academic activities, which include "decoding word drills, practicing sight words, reading to themselves and then to a buddy, counting up to 100 by ones, fives and tens, practicing simple addition, counting money, completing science activities about living things, and writing in journals on multiple occasions." Recess did not occur until the last hour of the day, and only lasted for about 15 minutes. He adds:For children between the ages of five and six, this is a tremendous amount of work. Teachers too are under pressure to cover the material. When I asked the teacher, who I interviewed for the short film, why she covered so much material in a few hours, she stated, "There's pressure on me and the kids to perform at a higher level academically." So even though the teacher admitted that the workload on kindergartners was an awful lot, she also said she was unable to do anything about changing it.
China

China Confirms Its Space Station Is Falling Back to Earth (popularmechanics.com) 275

The Tiangong-1, China's prototype space station which was launched in September 2011, is no longer under the control of China. PopularMechanics reports: China's Tiangong-1 space station has been orbiting the planet for about 5 years now, but recently it was decommissioned and the Chinese astronauts returned to the surface. In a press conference, China announced that the space station would be falling back to earth at some point in late 2017. Normally, a decommissioned satellite or space station would be retired by forcing it to burn up in the atmosphere. This type of burn is controlled, and most satellite re-entries are scheduled to burn up over the ocean to avoid endangering people. However, it seems that China's space agency is not sure exactly when Tiangong-1 will re-enter the atmosphere, which implies that the station has been damaged somehow and China is no longer able to control it. This is important because it means Tiangong-1 won't be able to burn up in a controlled manner. All we know is it will burn up at some point in late 2017, but it is impossible to predict exactly when or where. This means that there is a chance debris from the falling spacecraft could strike a populated area.
Math

When Blind People Do Algebra, the Brain's Visual Areas Light Up (npr.org) 69

People born without sight appear to solve math problems using visual areas of the brain. NPR has a fascinating report on this: A functional MRI study of 17 people blind since birth found that areas of visual cortex became active when the participants were asked to solve algebra problems, a team from Johns Hopkins reports in the Proceedings of the National Academy of Sciences. "And as the equations get harder and harder, activity in these areas goes up in a blind person," says Marina Bedny, an author of the study and an assistant professor in the department of psychological and brain sciences at Johns Hopkins University. In 19 sighted people doing the same problems, visual areas of the brain showed no increase in activity. "That really suggests that yes, blind individuals appear to be doing math with their visual cortex," Bedny says. The findings, published online Friday, challenge the idea that brain tissue intended for one function is limited to tasks that are closely related.
Medicine

Hackers Offer a DIY Alternative To The $600 EpiPen (ieee.org) 327

After the pharmaceutical company Mylan raised the price of a 2-pen set of EpiPens by nearly $500 over the course of 9 years, Michael Laufer and his "pharma-hacking confederates at the Four Thieves Vinegar Collective," decided to make their own budget-friendly EpiPens. IEEE Spectrum reports: Today they released a video and instructions showing DIYers how to make a generic EpiPen using materials that can be bought online for about $30. They call it the EpiPencil. "It functions just as well as an EpiPen," Laufer says in the video, after demonstrating the assembly and showing that it works. "With no special training, anybody can use it." An EpiPen is just a spring-loaded syringe filled with the pharmaceutical epinephrine. Laufer's video shows how to assemble the "open source medical device" and provides links for where to buy the components online. He stops short of telling viewers how to get their hands on the drug, noting that you need a prescription for it. But Laufer tells IEEE Spectrum in an interview that it's easy to buy epinephrine online from a chemical supplier, and he hopes viewers will do just that. "There's a small but hopefully growing subculture of people who are buying the active ingredients of drugs," he says. "It's encouraging to see people take control of their own health."

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