What we have not yet grasped is the way the tiny machines in front of us are remolding our skeletons, possibly altering not just the behaviors we exhibit but the bodies we inhabit. From a report: New research in biomechanics suggests that young people are developing hornlike spikes at the back of their skulls -- bone spurs caused by the forward tilt of the head, which shifts weight from the spine to the muscles at the back of the head, causing bone growth in the connecting tendons and ligaments. The weight transfer that causes the buildup can be compared to the way the skin thickens into a callus as a response to pressure or abrasion.

The result is a hook or hornlike feature jutting out from the skull, just above the neck. In academic papers, a pair of researchers at the University of the Sunshine Coast in Queensland, Australia, argues that the prevalence of the bone growth in younger adults points to shifting body posture brought about by the use of modern technology. They say smartphones and other handheld devices are contorting the human form, requiring users to bend their heads forward to make sense of what's happening on the miniature screens. Counter point: The absurd story about smartphones causing kids to sprout horns.

Beekeepers across the U.S. lost four in 10 of their honeybee colonies over the past year, as the worst winter on record for tracked bee populations raised fresh concerns over the plight of the crucial pollinators. The Guardian reports: Over the past winter, 37% of honeybee colonies were lost to beekeepers, the worst winter decline recorded in the 13-year history of a nationwide survey aimed at charting bees' fortunes. Overall, 40% of colonies died off over the entire year to April, which is above the 38% average since the survey began. Researchers said the numbers were concerning given the intensive efforts to stem the loss of honeybees, which pollinate an estimated $15 billion in U.S. crops each year, enabling the farming of foods including apples, melons, cherries, almonds and blueberries. The latest survey included data from 4,700 beekeepers from all 50 states, capturing about 12% of the U.S.'s estimated 2.69 million managed colonies. Researchers behind the survey say it's in line with findings from the U.S. Department of Agriculture, which keeps data on the remaining colonies.

An anonymous reader quotes a report from ZDNet: A MongoDB database was left open on the internet without a password, and by doing so, exposed the personal details and prescription information for more than 78,000 U.S. patients. The database contained information on 391,649 prescriptions for a drug named Vascepa; used for lowering triglycerides (fats) in adults that are on a low-fat and low-cholesterol diet. Additionally, the database also contained the collective information of over 78,000 patients who were prescribed Vascepa in the past. Leaked information included patient data such as full names, addresses, cell phone numbers, and email addresses, but also prescription info such as prescribing doctor, pharmacy information, NPI number (National Provider Identifier), NABP E-Profile Number (National Association of Boards of Pharmacy), and more. According to vpnMentor, the company that left the database open may have violated HIPAA, and may be in line for a hefty fine for failing to encrypt the patient data it had stored on the database server, a HIPAA golden rule," the report adds. "However, Dissent, the administrator of DataBreaches.net, a website dedicated to tracking data breaches and HIPAA violations, told ZDNet that just because a system stores medical information, it doesn't mean it's necessarily covered by HIPAA. Until the database owner is found, no other conclusions can be drawn."

One of our most powerful tools to fight biological obliteration is CRISPR, a burgeoning gene-editing technology that acts like a molecular blade, slicing DNA apart and allowing us to add and subtract genes at will. It's now being used to combat invasive species, destroy antibiotic-resistance bacteria and, controversially, edit the genes of human embryos. From a report: In fact, it's so exceptional at editing DNA that "de-extinction," the process of bringing extinct species back from the dead, is on the table. Science has already unraveled the DNA code of long-dead species such as the woolly mammoth, the passenger pigeon and Australia's iconic Tasmanian tiger -- and now, pioneering researchers are using CRISPR to remake modern-day descendants in the image of their ancient counterparts. Could we transform an Asian elephant into a woolly mammoth? We are marching toward that reality. "The CRISPR revolution is the whole reason why we've been having these conversations about de-extinction," says Ben Novak, a biologist working on restoring the extinct passenger pigeon.

There are opponents of de-extinction, however. They point to our responsibilities with species already living on the edge of extinction and ensuring we allocate resources to save them. Others are concerned about the ethics of resurrecting ancient beasts and how they might fit into current ecosystems as the planet chokes under the heavy cloud of climate change. In this era, as the planet warms and biodiversity plummets, we're faced with a question. Should we resurrect the dead?

An anonymous reader quotes a report from Bloomberg: Just one day of work per week is the most "effective dose" to give the mental health benefits of paid employment, research suggests. A study indicated that the risk of mental health problems reduces by 30% when people move from unemployment or stay-at-home parenting into paid work of eight hours or less per week. But researchers at the Universities of Cambridge and Salford found no evidence that working any more than eight hours provided further boosts to well-being. The researchers used data from a panel survey to examine how changes in working hours were linked to mental health and life satisfaction in more than 70,000 UK residents between 2009 and 2018. They controlled for characteristics including age, children, longstanding illness and household income. The study suggests that to get the mental well-being benefits of paid work, the most "effective dose" is only around one day a week -- as anything more makes little difference. The research has been published in the journal Social Science & Medicine.

schwit1 writes: The world's population is projected to nearly stop growing by the end of the century due in large part to falling global fertility rates, according to a Pew Research Center analysis of new data from the United Nations. By 2100, the world's population is projected to reach approximately 10.9 billion, with annual growth of less than 0.1% -- a steep decline from current levels. Between 1950 and today, the world's population grew between 1% and 2% each year, with the number of people rising from 2.5 billion to more than 7.7 billion. The report also found the world's population is getting older, with people over the age of 65 being the fastest-growing age group. "One in four people living in Europe and Northern America could be 65 years or older by 2050," reports USA Today. "And the number of people age 80 or over is projected to triple globally, from 143 million in 2019 to 426 million in 2050."

As for the global fertility rate, it fell from 3.2 births per woman in 1990 to 2.5 in 2019 and is projected to decline even further to 2.2 in 2050.

A tiny, old star just 12 light-years away might host two temperate, rocky planets, astronomers announced today. If they're confirmed, both of the newly spotted worlds are nearly identical to Earth in mass, and both planets are in orbits that could allow liquid water to trickle and puddle on their surfaces. National Geographic reports: Scientists estimate that the stellar host, known as Teegarden's star, is at least eight billion years old, or nearly twice the sun's age. That means any planets orbiting it are presumably as ancient, so life as we know it has had more than enough time to evolve. And for now, the star is remarkably quiet, with few indications of the tumultuous stellar quakes and flares that tend to erupt from such objects.

The two worlds orbit a star so faint that it wasn't even spotted until 2003, when NASA astrophysicist Bonnard Teegarden was mining astronomical data sets and looking for dim, nearby dwarf stars that had so far evaded detection. Teegarden's star is a stellar runt that's barely 9 percent of the sun's mass. It's known as an ultra-cool M dwarf, and it emits most of its light in the infrared -- just like the star TRAPPIST-1, which hosts seven known rocky planets. But Teegarden's star is just a third as far from Earth as the TRAPPIST-1 system, which makes it ideal for further characterization. The team of astronomers reported their findings in the journal Astronomy & Astrophysics.

An anonymous reader quotes a report from Phys.Org: Researchers in Rice's Laboratory for Nanophotonics (LANP) this week showed they could boost the efficiency of their solar-powered desalination system by more than 50% simply by adding inexpensive plastic lenses to concentrate sunlight into "hot spots." The results are available online in the Proceedings of the National Academy of Sciences. "The typical way to boost performance in solar-driven systems is to add solar concentrators and bring in more light," said Pratiksha Dongare, a graduate student in applied physics at Rice's Brown School of Engineering and co-lead author of the paper. "The big difference here is that we're using the same amount of light. We've shown it's possible to inexpensively redistribute that power and dramatically increase the rate of purified water production."

In conventional membrane distillation, hot, salty water is flowed across one side of a sheetlike membrane while cool, filtered water flows across the other. The temperature difference creates a difference in vapor pressure that drives water vapor from the heated side through the membrane toward the cooler, lower-pressure side. Scaling up the technology is difficult because the temperature difference across the membrane -- and the resulting output of clean water -- decreases as the size of the membrane increases. Rice's "nanophotonics-enabled solar membrane distillation" (NESMD) technology addresses this by using light-absorbing nanoparticles to turn the membrane itself into a solar-driven heating element. Dongare and colleagues, including study co-lead author Alessandro Alabastri, coat the top layer of their membranes with low-cost, commercially available nanoparticles that are designed to convert more than 80% of sunlight energy into heat. The solar-driven nanoparticle heating reduces production costs, and Rice engineers are working to scale up the technology for applications in remote areas that have no access to electricity.

The British research submarine Boaty McBoatface has made an impressive debut in the scientific arena, discovering a significant link between Antarctic winds and rising sea temperatures on its maiden outing. From a report: The unmanned submarine, whose moniker won a landslide victory in a public poll to name a $300 million British polar research ship, undertook its inaugural mission in April 2017. The task saw McBoatface travel 180 kilometers (112 miles) through mountainous underwater valleys in Antarctica, measuring the temperature, saltiness and turbulence in the depths of the Southern Ocean.

Its findings, published in the journal PNAS on Monday, revealed how increasingly strong winds in the region are causing turbulence deep within the sea, and as a result mixing warm water from middle levels with colder water in the abyss. That process is causing the sea temperature to rise, which in turn is a significant contributor to rising sea levels, scientists behind the project said. Antarctic winds are growing in strength due to the thinning of the ozone layer and the build-up of greenhouse gases, but their impact on the ocean has never been factored in to climate models.

sciencehabit shares a report from Science Magazine: Spies may soon have another tool to carry out their shadowy missions: a new device that uses sound to "see" around corners. Previously, researchers developed gadgets that bounced light waves around corners to catch reflections and see things out of the line of sight. To see whether they could do something similar with sound, another group of scientists built a hardware prototype -- a vertical pole adorned with off-the-shelf microphones and small car speakers. The speakers emitted a series of chirps, which bounced off a nearby wall at an angle before hitting a hidden object on another wall -- a poster board cutout of the letter H. Scientists then moved their rig bit by bit, each time making more chirps, which bounced back the way they came, into the microphones. Using algorithms from seismic imaging, the system reconstructed a rough image of the letter H. The technique is years from practical application, but the authors suggest an ultrasound version might eventually be used on autonomous vehicles to detect unseen obstacles. Or it could be used to spy on your co-worker in the next cubicle.

Scientists have discovered that some clouds on Mars are created from the debris of meteors that burn up in the planet's atmosphere. "This 'meteoric smoke,' described in a paper published Monday in Nature Geoscience, stimulates cloud formation at altitudes between 30 and 60 kilometers," reports Motherboard. From the report: "Until now, meteoric smoke has been neglected in general circulation model studies of the formation of Martian water ice clouds," said the study's authors, who were led by Victoria Hartwick, a graduate student at the University of Colorado Boulder. "We conclude that Mars atmospheric simulations that neglect meteoric smoke do not reproduce the observed spatial distribution of water ice clouds." These meteoric smoke clouds are distinct from low-altitude clouds that form when dust particles are kicked up from the Martian surface by winds, and also differ from high altitude clouds that nucleate around carbon dioxide particles, the team said.

The team used data from NASA's Mars Atmosphere and Volatile Evolution (MAVEN) orbiter to show that about three or four tons of alien dust slams into Mars' atmosphere every sol, which is the Martian version of a day. Only a fraction of this interplanetary material sprinkles down to lower altitudes, but that is more than enough to encourage cloud formation. The new research not only explains how these enigmatic clouds form on Mars, it also suggests that meteors may play a larger role in the Martian climate than previously assumed. For instance, meteoric smoke could help explain cloud formation during Mars' early years, when the planet was warmer, wetter, and possibly conducive to life.

An anonymous reader quotes a report from The Guardian: An independent tribunal sitting in London has concluded that the killing of detainees in China for organ transplants is continuing, and victims include imprisoned followers of the Falun Gong movement. The China Tribunal, chaired by Sir Geoffrey Nice QC, who was a prosecutor at the international criminal tribunal for the former Yugoslavia, said in a unanimous determination at the end of its hearings it was "certain that Falun Gong as a source -- probably the principal source -- of organs for forced organ harvesting."

Among those killed, it has been alleged, are members of religious minorities such as Falun Gong. Persecution of the group began in 1999 after it had attracted tens of millions of followers and came to be seen as a threat to the communist party. There is less evidence about the treatment of Tibetans, Uighur Muslims and some Christian sects. China announced in 2014 that it would stop removing organs for transplantation from executed prisoners and has dismissed the claims as politically-motivated and untrue. "The conclusion shows that very many people have died indescribably hideous deaths for no reason, that more may suffer in similar ways and that all of us live on a planet where extreme wickedness may be found in the power of those, for the time being, running a country with one of the oldest civilizations known to modern man," said Sir Geoffrey Nice QC. He added: "There is no evidence of the practice having been stopped and the tribunal is satisfied that it is continuing."

An anonymous reader shares a report: In the heart of Boston, Tufts Medical Center treats scores of health conditions, from administering measles vaccines for children to pioneering next-generation tools that can eradicate the rarest of cancers. But doctors, administrators and other hospital staff struggled to contain a much different kind of epidemic one April morning last year: a wave of thousands of robocalls that spread, like a virus, from one phone line to the next, disrupting communications for hours to come.

For most Americans, such robocalls represent an unavoidable digital-age nuisance, resulting in constant interruptions targeting their phones each month. For hospitals, though, the spam calls amount to a literal life-or-death challenge, one that increasingly is threatening doctors and patients in a setting where every second can count. At Tufts Medical Center, administrators registered more than 4,500 calls between about 9:30 and 11:30 a.m. on April 30, 2018, said Taylor Lehmann, the center's chief information security officer. Many of the messages seemed to be the same: Speaking in Mandarin, an unknown voice threatened deportation unless the person who picked up the phone provided their personal information.

Such calls are common, widely documented scams that seek to swindle vulnerable foreigners, who may surrender their private data out of fear their families and homes are at risk. But it proved especially troubling at Tufts, which is situated amid Boston's Chinatown neighborhood, Lehmann said. Officials there couldn't block the calls through their telecom carrier, Windstream, which provides phone and web services to consumers and businesses. "There's nothing we could do," Lehmann said Windstream told them.

Cloudflare, along with a group of individual and academic partners, is forming a new coalition that will provide truly random, unpredictable numbers for a variety of applications, including election systems and lotteries. From a report: The problem of producing truly random numbers on a consistent basis has been a thorny one for cryptographers for many years. There have been plenty of efforts to establish sources of randomness, with some success, but one of the drawbacks is that any single randomness generator can be a target for abuse by privileged insiders or outside attackers. This is especially true in high-value applications that require random numbers, such as lottery or election systems. Also, if a given source of random numbers fails for any reason, the applications that rely on it can be crippled, as well.

To help address this problem, Cloudflare has teamed up with the University of Chile, the Ecole polytechnique federale de Lausanne, and several individual researchers to form a consortium of randomness beacons distributed around the world. The system is based on the drand randomness beacon developed by Nicholas Gailly, a researcher at Protocol Labs, a research lab for network protocols, and the aim is to have a distributed network of beacons that will always be available. "Our founding members are contributing their individual high-entropy sources to provide a more random and unpredictable beacon to generate publicly verifiable random values every sixty seconds. The fact that the drand beacon is decentralized and built using appropriate, provably-secure cryptographic primitives, increases our confidence that it possesses all the aforementioned properties," Dina Kozlov, a product manager at Cloudflare, said.

"This global network of servers generating randomness ensures that even if a few servers are offline, the beacon continues to produce new numbers by using the remaining online servers. Even if one or two of the servers or their entropy sources were to be compromised, the rest will still ensure that the jointly-produced entropy is fully unpredictable and unbiasable." Random numbers are vital to many kinds of systems and there are plenty of hardware and software-based random number generators. But more than one RNG has been found to have a bias, whether intentional or accidental, so randomness beacons emerged.

In just three pages, a Russian mathematician has presented a better way to color certain types of networks than many experts thought possible. From a report: A paper posted online last month has disproved a 53-year-old conjecture about the best way to assign colors to the nodes of a network. The paper shows, in a mere three pages, that there are better ways to color certain networks than many mathematicians had supposed possible. Network coloring problems, which were inspired by the question of how to color maps so that adjoining countries are different colors, have been a focus of study among mathematicians for nearly 200 years. The goal is to figure out how to color the nodes of some network (or graph, as mathematicians call them) so that no two connected nodes share the same color. Depending on the context, such a coloring can provide an effective way to seat guests at a wedding, schedule factory tasks for different time slots, or even solve a sudoku puzzle.

Graph coloring problems tend to be simple to state, but they are often enormously hard to solve. Even the question that launched the field -- Do four colors suffice to color any map? -- took more than a century to answer (the answer is yes, in case you were wondering). The problem tackled in the new paper seemed, until now, to be no exception to this rule. Unsolved for more than 50 years, it concerns tensor products -- graphs made by combining two different graphs (call them G and H) in a specific way. The tensor product of G and H is a new, larger graph in which each node represents a pair of nodes from the original graphs -- one from G and one from H -- and two nodes in the tensor product are connected if both their corresponding nodes in G and their corresponding nodes in H are connected.

Bloomberg reports on a five-year, $77 million project by America's Department of Defense to create an implantable brain device that restores memory-generation capacity for people with traumatic brain injuries.

A device has now been developed by Michael Kahana, a professor of psychology at the University of Pennsylvania, and the medical technology company Medtronic Plc, and successfully tested with funding from America's Defense Advanced Research Projects Agency (Darpa). Connected to the left temporal cortex, it monitors the brain's electrical activity and forecasts whether a lasting memory will be created. "Just like meteorologists predict the weather by putting sensors in the environment that measure humidity and wind speed and temperature, we put sensors in the brain and measure electrical signals," Kahana says. If brain activity is suboptimal, the device provides a small zap, undetectable to the patient, to strengthen the signal and increase the chance of memory formation.

In two separate studies, researchers found the prototype consistently boosted memory 15 per cent to 18 per cent. The second group performing human testing, a team from Wake Forest Baptist Medical Center in Winston-Salem, N.C., aided by colleagues at the University of Southern California, has a more finely tuned method. In a study published last year, their patients showed memory retention improvement of as much as 37 per cent. "We're looking at questions like, 'Where are my keys? Where did I park the car? Have I taken my pills?'â" says Robert Hampson, lead author of the 2018 study...

Both groups have tested their devices only on epileptic patients with electrodes already implanted in their brains to monitor seizures; each implant requires clunky external hardware that won't fit in somebody's skull. The next steps will be building smaller implants and getting approval from the U.S. Food and Drug Administration to bring the devices to market... Justin Sanchez, who just stepped down as director of Darpa's biological technologies office, says veterans will be the first to use the prosthetics. "We have hundreds of thousands of military personnel with traumatic brain injuries," he says. The next group will likely be stroke and Alzheimer's patients.

Long-time Slashdot reader fahrbot-bot brings us news about the southern hemisphere of Mars: The University of Arizona HiRISE (High Resolution Imaging Science Experiment) has posted a photo of curious chevron shapes in southeast Hellas Planitia that are the result of "a complex story of dunes, lava, and wind."

"Enterprising viewers will make the discovery that these features look conspicuously like a famous logo..."
RockDoctor (Slashdot reader #15,477) adds that "For those wanting to try to find it on a Mars map, it's at Latitude (centered) -49.325Â Longitude (East) 85.331Â."

fahrbot-bot shares a report from Ars Technica: One patient has died and another became seriously ill after fecal transplants inadvertently seeded their innards with a multi-drug resistant bacterial infection, the Food and Drug Administration warned Thursday. The cases highlight the grave risks of what some consider a relatively safe procedure. They also call attention to the mucky issues of federal oversight for the experimental transplants, which the FDA has struggled to regulate. In its warning Thursday, the agency announced new protections for trials and experimental uses of the procedure.

The FDA shared minimal details from the deadly transplants. Its warning only noted that the cases involved two patients who were immunocompromised prior to the experimental transplants and received stool from the same donor. Subsequent to the transplant, the patients developed invasive infections from an E. coli strain that was resistant to a wide variety of antibiotics in the penicillin and cephalosporin groups. The E. coli strain carried a drug-defeating enzyme called an extended-spectrum beta-lactamase (ESBL), which generally cleaves a ring common to all the chemical structures of those antibiotics. When unnamed researchers who administered the transplant looked back at the donor stool, they found that the stool contained an identical ESBL-producing E. coli. One of the patients died and the fate of the other was not discussed. The agency also did not say how or why the patients were immunocompromised prior to the transplants, what the transplants were attempting to accomplish, how they were carried out, who conducted the transplants, or when they occurred.

fahrbot-bot shares a report from ScienceAlert: Antlia 2, the "ghost of a galaxy" orbiting the Milky Way, is a dark horse in more ways than one. Not only is it so faint it was only just discovered last year, it may now be responsible for curious ripples in the hydrogen gas that makes up the Milky Way's outer disc. According to new research, Antlia 2's current position is consistent with a collision with the Milky Way hundreds of millions of years ago that could have produced the perturbations we see today. The paper has been submitted for publication and is undergoing peer review. Antlia 2 was a bit of a surprise when it showed up in the second Gaia mission data release last year. It's really close to the Milky Way -- one of our satellite galaxies -- and absolutely enormous, about the size of the Large Magellanic Cloud. Further reading: CNET

An anonymous reader quotes a report The Weather Channel: Scientists studying climate change expected layers of permafrost in the Canadian Arctic to melt by the year 2090. Instead, it's happening now. A new study published this week in the journal Geophysical Research Letters revealed that unusually warm summers in the Canadian High Arctic between 2003 and 2016 resulted in permafrost melt up to 240% higher than previous years. Louise Farquharson, a researcher at the Permafrost Laboratory at the University of Alaska Fairbanks and the study's lead author, told weather.com the three areas of melting permafrost studied in remote northern Canada are believed to have been frozen for thousands of years. She noted that while scientists had predicted the permafrost wouldn't melt for another 70 years, those forecasts didn't take into account the unusually warm summers that have happened in recent years. While researchers believe all indicators point to warmer temperatures continuing, there's no way to know for sure just how quickly the permafrost will continue to melt. Not only is rapidly melting permafrost a symptom of global warming, but it accelerates climate change by exposing thawing biological material to the atmosphere where it decomposes and releases CO2, a key element in global warming.