172 articles from WEDNESDAY 7.2.2024

Whole-infrared-band camouflage with dual-band radiative heat dissipation

Camouflage refers to the ability to reduce the signal captured by detectors, thereby improving survival rates. However, the combination of detectors operating in multiple spectral bands poses a significant challenge, necessitating the development of multiband camouflage technologies. Besides, camouflage usually conflicts with radiative heat dissipation demands, which have significant contributions...

NASA to demonstrate autonomous navigation system on moon

When the second CLPS (Commercial Lunar Payload Services) delivery is launched to the moon in mid-February, its NASA payloads will include an experiment that could change how human explorers, rovers, and spacecraft independently track their precise location on the moon and in cis-lunar space.

Study: 'Legacy' phosphorus delays water quality improvements in Gulf of Mexico

The same phosphorous that fertilizes the thriving agriculture of the Midwest is also responsible for a vast "dead zone" in the Gulf of Mexico near the Mississippi Delta. Efforts to reduce the amount of phosphorus that enters the Mississippi River system are underway, but research led by the University of Illinois Urbana-Champaign suggests that remnants of the contaminant are left behind in...

Creating a toolkit of yeast strains that over-produce key cellular building blocks

Microbes such as bacteria and yeast are increasingly being used to produce components of medicines, biofuels, and food. Indeed, baker's yeast, also known as brewer's yeast or Saccharomyces cerevisiae, is responsible for the fermentation process used in making beer or bread, but it is also used at scale to produce other molecules of value for industry.

Study finds corn genome can gang up on multiple pathogens at once

In a changing climate, corn growers must be ready for anything, including new and shifting disease dynamics. Because it's impossible to predict which damaging disease will pop up in a given year, corn with resistance to multiple diseases would be a huge win for growers. Now, University of Illinois Urbana-Champaign researchers are moving the industry closer to that goal.

Examining how molecular orbitals determine stability

Carboxylic acid dianions (fumarate, maleate, and succinate) play a role in coordination chemistry and, to some extent, also in the biochemistry of body cells. An HZB team at BESSY II has now analyzed their electronic structures using RIXS in combination with DFT simulations. The results provide information not only on electronic structures but also on the relative stability of these molecules,...

Viagra may help to lower the risk of Alzheimer’s disease, study finds

Research by UCL, which examined medical records of 260,000 men with erectile dysfunction, has provided ‘food for thought’After a decades-long and largely fruitless hunt for drugs to combat Alzheimer’s disease, an unlikely candidate has raised its head: the erectile dysfunction pill Viagra.Researchers found that men who were prescribed Viagra and similar medications were 18% less likely to...

NASA's Roman telescope to use rare events to calculate expansion rate of universe

Astronomers investigating one of the most pressing mysteries of the cosmos—the rate at which the universe is expanding—are readying themselves to study this puzzle in a new way using NASA's Nancy Grace Roman Space Telescope. Once it launches by May 2027, astronomers will mine Roman's wide swaths of images for gravitationally lensed supernovae, which can be used to measure the expansion rate of...

MXene-coated devices can guide microwaves in space and lighten the payload

One of the most important components of satellites that enable telecommunication is the waveguide, which is a metal tube for guiding radio waves. It is also one of the heaviest payloads satellites carry into orbit. As with all space technology, reducing weight means reducing the amount of expensive and greenhouse gas-producing fuel it takes to launch a rocket or increasing the number of devices...