266 articles from WEDNESDAY 7.7.2021

Protein's 'silent code' affects how cells move

The protein actin is ubiquitous and essential for life. In mammals, every cell expresses two of its forms, beta-actin and gamma-nonmuscle-actin. Despite having distinct roles, the two forms are nearly identical, sharing 99% of their amino acid sequence.

Scientists use artificial intelligence to detect gravitational waves

When gravitational waves were first detected in 2015 by the advanced Laser Interferometer Gravitational-Wave Observatory (LIGO), they sent a ripple through the scientific community, as they confirmed another of Einstein's theories and marked the birth of gravitational wave astronomy. Five years later, numerous gravitational wave sources have been detected, including the first observation of two...

Reducing the melting of the Greenland ice cap using solar geoengineering?

Injecting sulfur into the stratosphere to reduce solar radiation and stop the Greenland ice cap from melting. It's an interesting scenario, but not without risks. Climatologists from the University of Liège have looked into the matter and have tested one of the scenarios put forward using the MAR climate model developed at the University of Liège. The results are mixed and have been published in...

Human-driven habitat change leads to physical and behavioral change in mosquitofish

Bahamian mosquitofish in habitats fragmented by human activity are more willing to explore their environment, more stressed by change and have smaller brain regions associated with fear response than mosquitofish from unaffected habitats. The new study from North Carolina State University shows that these fish have adapted quickly in specific ways to human-driven change, and cautions that...

Quantum particles: Pulled and compressed

Very recently, researchers led by Markus Aspelmeyer at the University of Vienna and Lukas Novotny at ETH Zurich cooled a glass nanoparticle into the quantum regime for the first time. To do this, the particle is deprived of its kinetic energy with the help of lasers. What remains are movements, so-called quantum fluctuations, which no longer follow the laws of classical physics but those of...

What to do with food waste? Well, that depends

The expected decline in the number of landfills across the United States coupled with bans on disposing large amounts of organic waste in landfills that have been enacted in multiple states has prompted researchers to examine other ways to grapple with the issue of food waste disposal.

Could ketogenic diet be helpful with brain cancer?

A modified ketogenic diet may be worth exploring for people with brain tumors, according to a new study. The small study found that the diet was safe and feasible for people with brain tumors called astrocytomas. The study was not designed to determine whether the diet could slow down tumor growth or improve survival.

How plants compensate symbiotic microbes

Combining economics, psychology and studies of fertilizer application, researchers find that plants nearly follow an 'equal pay for equal work' rule when giving resources to partner microbes - except when those microbes under-perform.

Quantum particles: Pulled and compressed

Only recently researchers have levitated and cooled nanoparticles into the quantum regime. A research team now proposes a way to harness the quantum properties of such particles before they lose them due to decoherence. To this end, the wave function of the particle is repeatedly expanded and compressed.

When taste and healthfulness compete, taste has a hidden advantage

You dash into a convenience store for a quick snack, spot an apple and reach for a candy bar instead. Poor self-control may not be the only factor behind your choice, new research suggests. That's because our brains process taste information first, before factoring in health information, according to new research.