2018年3月28日 星期三

Daily Bulletin for 03/28/2018 

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The Interstitium: New 'Organ' Found

Rachael Rettner, Live Science

With all that's known about human anatomy, you wouldn't expect doctors to discover a new body part in this day and age. But now, researchers say they've done just that: They've found a network of fluid-filled spaces in tissue that hadn't been seen before.These fluid-filled spaces were discovered in connective tissues all over the body, including below the skin's surface; lining the digestive tract, lungs and urinary systems; and surrounding muscles, according to a new study detailing the findings, published today (March 27) in the journal Scientific Reports.

Pioneering Alzheimer's Study Zeroes In on Protein

Sara Reardon, Nature News

Jhon Kennedy was building a house for his family when he realized that his 45-year-old father was beginning to struggle with daily life. His dad tried to help with the construction project but often forgot to complete simple tasks. And he kept getting lost on the way home from work.

Why the LHC Is One of the Coldest Places on the Planet

Sarah Charley, Symmetry

Liquid helium is constantly pulsing through sophisticated plumbing that runs both inside and outside of the Large Hadron Collider. Thanks to this cryogenic cooling system, the LHC is colder than interstellar space. But why does it need to be kept at these intensely frigid temperatures?

The Sad Reason I'm Happy to Leave GMO Research

Devang Mehta, Massive

A few weeks ago, like thousands of other scientists around the globe have done before, I stood up in front of a public audience and defended my PhD thesis to a jury of senior scientists. The PhD defense is probably the single-most significant milestone in a career in science. It's part examination and part ritual PhD defenses in the Netherlands, for instance, feature a robed jury and a master of ceremonies with a ceremonial mace.

Stop Calling Dopamine the 'Pleasure Chemical'

Angela Chen, The Verge

Dopamine is one of the most hyped brain chemicals, supposedly linked to everything from sex to gambling. It's common to read, as Business Insider claimed last week, that dopamine is the pleasure chemical but that's not true, and the idea was overturned long ago.I have friends who have dopamine tattoos because they think it means pleasure, says Arif Hamid, a Gray Fellow at the Howard Hughes Medical Institute and postdoctoral researcher at Brown University, who studies the role of dopamine in the brain.

James Webb Slips Again, and Astronomy Suffers

Lee Billings, Scientific American

For more than a generation, astronomers have been waiting for the James Webb Space Telescope, NASA's successor to the iconic Hubble Space Telescope. On Tuesday they learned they will have to wait even longer, as agency officials revealed Webb's launch date has slipped from spring of 2019 to approximately May 2020a delay that could cost hundreds of millions of dollars, breaching the $8.8-billion telescope's Congressionally mandated cost cap and requiring legislators to either provide more funding or abandon the project.

Naturopath Calls BS on Her Industry

Hannah Devlin, The Guardian

Sometimes disillusionment creeps in one small letdown at a time. But for Britt Marie Hermes, the transition from alternative medicine practitioner to sceptic occurred over the course of a weekend.After an unsettling discovery at the Arizona clinic where she worked four years ago, Hermes turned her back on everything she had believed in and set out to expose what she describes as the dubious and unethical underbelly of her former profession.

Could Primordial Black Holes Explain Dark Matter?

Ryan Mandelbaum, Gizmodo

Without an actual discovery, it can be difficult to convince us laypeople that there's really such a thing as dark matter. It seems to interact with our universe solely through gravity, and no experiment has detected it here on Earth yet. So what if there's an explanation to what's causing the dark matter's using physics that already exists, like Higgs bosons and black holes?

Quantum Battery Could Get Boost from Entanglement

Edwin Cartlidge, P-World

Physicists in Italy have designed a quantum battery that they say could be built using today's solid-state technology. They claim that the device, which would store energy in the excited states of qubits, could charge up very quickly thanks to entanglement and that it could provide power for quantum computers of the future.This research is part of a push by physicists to study the thermodynamics of very small systems, such as atomic or molecular heat engines and refrigerators.

Water May Have Killed Mars' Magnetic Field

Lisa Grossman, ScienceNews

Mars' missing magnetic field may have drowned in the planet's core.An excess of hydrogen, split off from water molecules and stored in the Martian mantle, could have shut down convection, switching the magnetic field off forever, planetary scientist Joseph O'Rourke proposed March 21 at the Lunar and Planetary Science Conference.

Does My Algorithm Have a Mental Health Problem?

Thomas Hills, Aeon

Is my car hallucinating? Is the algorithm that runs the police surveillance system in my city paranoid? Marvin the android in Douglas Adams's Hitchhikers Guide to the Galaxy had a pain in all the diodes down his left-hand side. Is that how my toaster feels?This all sounds ludicrous until we realise that our algorithms are increasingly being made in our own image. As we've learned more about our own brains, we've enlisted that knowledge to create algorithmic versions of ourselves.

Texas Law Opens Door for Controversial Treatments

Anna Azvolinsky, The Sci

On a main thoroughfare running along the east side of Cancun, Mexico, sits Hospital Galenia, a small, private facility with crisp, white walls and slick marble floors. On a Friday morning in February, the lobby is quiet, its palm-filled courtyard unoccupied, belying activity in parts unseen, including an emergency room and a maternity ward.

The Psychology of Fake News

Tania Lombrozo, NPR

During the past two years, fake news has been a frequent topic of real news, with articles considering the role of social media in spreading fake news, the advent of fake videos and the role these play in the political process.Something less well-known, though, is that fake news has also become a topic of scientific investigation.

Why Doesn't NASA Just Buy Falcon Heavys?

Eric Berger, Ars Tech

Since the launch of the Falcon Heavy rocket in February, NASA has faced some uncomfortable questions about the affordability of its own Space Launch System rocket. By some estimates, NASA could afford 17 to 27 Falcon Heavy launches a year for what it is paying annually to develop the SLS rocket, which won't fly before 2020. Even President Trump has mused about the high costs of NASA's rocket.

The Real Health Consequences of Not Dreaming

Derek Beres, Big Think

Carl Jung believed dreams represent archetypal realities obscured during waking consciousness. Dreams reveal more than they conceal, he wrote, countering Freud's idea that subconscious movies were by design secretive. Dreams are an integral component of Jung's theory of individuation, in which our conscious and unconscious lives are integrated.

Kids with Autism Less Likely to Be Fully Vaccinated

Phoebe Roth, Conversation

Children with autism and their younger siblings are less likely to be fully vaccinated than neurotypical children and their siblings, new research from the US has found.Of children aged seven years and older, 94% of neurotypical children had received all the recommended vaccinations for children aged 4-6 years. For those with autism, the rate was 82%.

Will a New Brain Scanner Change Neuroscience?

Neuroskeptic, Discover

An improved method for recording brain activity could prove a major asset to neuroscience, according to a Nature paper just out: Moving magnetoencephalography towards real-world applications with a wearable systemThe new device is an improved version of an existing technique, called magnetoencephalography (MEG).
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