337 articles from WEDNESDAY 5.5.2021
Long-term monitoring shows successful restoration of mining-polluted streams
- ScienceDaily
- 21/5/5 01:16
Many miles of streams and rivers are polluted by toxic metals in acidic runoff draining from abandoned mining sites, and major investments have been made to clean up acid mine drainage at some sites. A new study based on long-term monitoring data from four sites in the western United States shows that cleanup efforts can allow affected streams to recover to near natural conditions within 10 to 15...
With a zap of light, system switches objects' colors and patterns
- ScienceDaily
- 21/5/5 01:16
ChromoUpdate is a 'programmable matter' technique to quickly change objects' color. The method uses light to alter the saturation of photochromatic ink on an item's surface and could give product designers a boost in churning out prototypes.
New application of AI just removed one of the biggest roadblocks in astrophysics
- ScienceDaily
- 21/5/5 01:16
Using neural networks, researchers simulated vast, complex universes in a fraction of the time it takes with conventional methods.
Being around children makes adults more generous
- ScienceDaily
- 21/5/5 01:15
New psychology research suggests adults are more compassionate and donate more to charity when they are in the presence of children.
Swarm of photons can somersault in lockstep
- ScienceDaily
- 21/5/5 01:15
Scientists demonstrate the surprising result that photons in vacuum can have orbital angular momentum (OAM) vectors pointing sideways, at 90 degrees to the direction of propagation - a result literally orthogonal to the decades-long expectation that OAM vectors could only point forward or backward.
A trait of the rare few whose bodies naturally control HIV: 'trained' immune cells
- ScienceDaily
- 21/5/5 01:15
Scientists have discover that 'elite controllers' have myeloid dendritic cells that display characteristics of trained innate immune cells.
Without commuter traffic, pandemic-era drivers are speeding up, increasing noise pollution
- ScienceDaily
- 21/5/5 01:15
When millions of Americans began working from home, city traffic halted. Although the air became cleaner, researchers discovered that sound levels increased in nature conservation areas due to cars driving faster.
Neighborhood disadvantage may be an environmental risk factor for brain development
- ScienceDaily
- 21/5/5 01:14
A new study suggests that certain neighborhoods - particularly those characterized by poverty and unemployment - may pose an environmental risk to the developing brains of children, impacting neurocognitive performance and even brain size.
Yes, you can have more than 150 friends: New study deconstructs Dunbar's number
An individual human can maintain stable social relationships with about 150 people. This is the proposition known as "Dunbar's number"—that the architecture of the human brain sets an upper limit on our social lives. A new study from Stockholm University indicates that a cognitive limit on human group sizes cannot be derived in this manner.
HS2 workers to exhume 3,000 bodies in Buckinghamshire churchyard
Archaeologists say findings at Old St Mary’s church in Stoke Mandeville will shed light on life dating back to Norman timesHS2 contractors are planning to disinter 3,000 bodies discovered in a churchyard in Buckinghamshire that lies in the path of the new high-speed rail link.Archaeologists excavating a site at Old St Mary’s church in Stoke Mandeville, Buckinghamshire, which was built shortly...
Loan applications processed around midday more likely to be rejected
Bank credit officers are more likely to approve loan applications earlier and later in the day, while 'decision fatigue' around midday is associated with defaulting to the safer option of saying no.