253 articles from TUESDAY 1.9.2020

A small number of self-organizing autonomous vehicles significantly increases traffic flow

With the addition of just a small number of autonomous vehicles (AVs) on the road, traffic flow can become faster, greener, and safer in the near future. Researchers present a simple set of guidelines and regulations for achieving the self-organization of AVs into constellations that dynamically control the entire traffic flow even when fewer than 5 percent of the vehicles on the road are...

How dangerous are burning electric cars?

What happens if an electric car burns in a road tunnel or an underground car park? In the Hagerbach test tunnel in Switzerland, researchers and tunnel safety experts set fire to battery cells of electric cars, analyzed the distribution of soot and smoke gases and the chemical residues in the extinguishing water.

Global heating motivated American mastodons to trek north

Shift led to local extinctions and could have important implications for species todayGenetic diversity could shrink as animals venture into new territories because of global heating leaving them vulnerable to extinction, scientists have warned after tracking the impact of climate change on the American mastodon.Huge, hairy and with a pair of fearsome tusks, mastodons resembled stocky, hirsute...

Different responses in individual cells give muscles more control

Minute differences in individual muscle cell contractions allow the entire muscle to flex with greater control and accuracy. Long dismissed as "noise" or error, experts now suspect that biological systems may have evolved to include unavoidable variation as a form of information in their communication channels. A team of experts from the University of Tokyo published these findings in the...

Detecting small amounts of virus in early infections

Diagnostic devices that are used at home or in doctors' offices are often not sensitive enough to detect small amounts of a virus that might be present in samples from asymptomatic patients, which can occur in early stage COVID-19. In Biomicrofluidics,, scientists report a membrane-based invention that can concentrate the virus content of a sample of urine or saliva, allowing it to be detected.

Mastodons took frequent trips north when climate changed

New research suggests that American mastodons were avid travelers, migrating vast distances across North America in response to dramatic climate change during the ice ages of the Pleistocene. The study, conducted by an international team of scientists and published today in the journal Nature Communications, also reveals that mastodon populations that headed northward to the Arctic during warm...

Direct observation of desorption of a melt of long polymer chains

In our everyday life it's not uncommon to see the same material in different states. Take for example water: it's a liquid at ambient temperature, we can convert into ice when cooled below 0°C and it becomes a gas when heated above 100°C. The passages between these different states of matter are called phase transitions.

Additive manufacturing of multi-functional parts

Additive manufacturing is currently one of the most significant trends in industry. Now a team from the Fraunhofer Institute for Ceramic Technologies and Systems IKTS has developed a Multi Material Jetting system that allows different materials to be combined into a single additively manufactured part. This makes it possible to create products with combined properties or functions. The new system...

Vanessa Redgrave calls on businesses to help UK's Covid-hit arts sector

Actor appeals for funds to save jobs in industry that is one of worst affected by pandemicCoronavirus – latest updatesSee all our coronavirus coverageVanessa Redgrave has urged businesses and entrepreneurs to give money to help restore Britain’s coronavirus-threatened arts infrastructure.The actor is expected to be joined by Sir Lenny Henry, Maxine Peake and Sir Trevor Nunn on Tuesday evening...

The best of both worlds for economic predictions

Danish physicist Neils Bohr once quipped that prediction is hard, especially when it is about the future. But this is precisely what financial regulators need to do—forecasting the likely state of the economy in the future is crucial when deciding on policy levers like whether to slash or raise interest rates.

Q&A: Researchers set out to clear the seabed of plastic

Eighty-six million metric tons of plastics end up in the oceans every year, with devastating consequences for marine life, nature and, ultimately, for us humans. The vast floating patches of plastic carpeting the water's surface, some as large as entire countries, are only the tip of the iceberg. Around 90 percent of this garbage ends up on the seabed. The Fraunhofer Center for Maritime Logistics...

How tadpoles provide insight into pandemics

A virus affecting wood frog tadpoles throughout the eastern United States is offering scientists a rare opportunity to investigate the role of environmental factors in the spread of infectious disease.

Stable supply of electrochromic metallo-supramolecular polymer

National Institute for Materials Science (NIMS) and Tokyo Chemical Industry Co., Ltd. (TCI) have jointly developed a synthetic process capable of stably supplying a metallo-supramolecular polymer electrochromic (EC) material. Popularization of this material may stimulate growth in the market for dimming windows capable of electrically changing tint from transparent to dark.

Surface and Exosphere Alterations by Landers (SEAL): NASA’s Next Lunar Payload?

PROJECT Surface and Exosphere Alterations by Landers (SEAL) SNAPSHOT SEAL will provide valuable in situ lunar data to give scientists insight into how a spacecraft landing might affect the composition of nearby regolith samples. SEAL engineers and technicians assemble the flight payload in a clean room at GSFC. When a space vehicle lands on the Moon, it interacts with the lunar surface...

New feline vaccination guidelines

The American Animal Hospital Association (AAHA) and the American Association of Feline Practitioners (AAFP) convened a panel of experts to update the 2013 AAFP Feline Vaccination Advisory Panel Report. The release of the 2020 AAHA/AAFP Feline Vaccination Guidelines provides updated recommendations and the most current information for feline vaccinations.

Queen of the Dolomites glacier could vanish within 15 years

Italian scientists warn Marmolada has shrunk 80% in 70 years due to global heatingThe largest and most symbolic glacier in the Dolomites could vanish within 15 years because of global heating, Italian scientists have warned.The 3,343m Marmolada, located on the border of the Trentino and Veneto regions and known as the Queen of the Dolomites, has already lost more than 80% of its volume over the...

Researchers manipulate two bits in one atom

Researchers at Delft University of Technology have succeeded in independently manipulating two different types of magnetism within a single atom. The results are relevant for the development of extremely small forms of data storage. In time, this new discovery could make it possible to store two bits of information in one atom.