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139,819 articles from ScienceDaily

A comprehensive map of the SARS-CoV-2 genome

Researchers have generated what they describe as the most complete gene annotation of the SARS-CoV-2 genome. In their study, they confirmed several protein-coding genes and found that a few others that had been suggested as genes do not code for any proteins.

Hidden within African diamonds, a billion-plus years of deep-earth history

A team has come up with a way to solve two longstanding puzzles: the ages of individual fluid-bearing diamonds, and the chemistry of their parent material. The research has allowed them to sketch out geologic events going back more than a billion years -- a potential breakthrough not only in the study of diamonds, but of planetary evolution.

The Aqueduct of Constantinople: Managing the longest water channel of the ancient world

Aqueducts are very impressive examples of the art of construction in the Roman Empire. Even today, they still provide us with new insights into aesthetic, practical, and technical aspects of construction and use. Scientists investigated the longest aqueduct of the time, the 426-kilometer-long Aqueduct of Valens supplying Constantinople, and revealed new insights into how this structure was...

Low temperature physics gives insight into turbulence

A novel technique for studying vortices in quantum fluids has been developed by physicists. Turbulence in quantum systems, for example in superfluid helium 4, takes place on microscopic scales, and so far scientists have not had tools with sufficient precision to probe eddies this small. But now the team, working at temperature of a few thousandths of a degree above absolute zero, has harnessed...

Volcanoes on Mars could be active, raising possibility Mars was recently habitable

New observations reveal that Mars could still be volcanically active, raising the possibility for habitable conditions in the near surface of Mars in recent history. Ongoing research investigates the possibility that the most recent volcanic activity on Mars, which occurred about 50,000 years ago, might have been triggered by a nearby asteroid impact that happened around the same time.

MONDAY 10. MAY 2021

Graphene key for novel hardware security

As more private data is stored and shared digitally, researchers are exploring new ways to protect data against attacks from bad actors. Current silicon technology exploits microscopic differences between computing components to create secure keys, but artificial intelligence (AI) techniques can be used to predict these keys and gain access to data. Now, researchers have designed a way to make the...

Stimulators could aid spinal cord, heart therapies

Engineers develop a new version of their wireless implant that allows for multiple stimulators to be programmed and magnetically powered from a single transmitter outside the body. The implants could be used to treat spinal cord injuries or as pacemakers.

As global climate shifts, forests' futures may be caught in the wind

Forests' ability to adapt to the disruptions wrought by climate change may depend, in part, on the eddies and swirls of global wind currents, suggests a new study. The study compared global wind patterns with previously published genetic data of nearly 100 tree and shrub species collected from forests around the world, finding significant correlations between wind speed and direction and genetic...

'Unmaking' a move: Correcting motion blur in single-photon images

Single-photon imaging is the future of high-speed digital photography and vastly surpasses conventional cameras in low-light conditions. However, fixing the blurring caused by the motion of independent objects remains challenging. Recently, researchers at developed an innovative de-blurring approach that accurately estimates the motion of individual objects and adjusts the final image accordingly....

The 'key' to new COVID-19 vaccine development

Scientists are researching a new COVID-19 vaccine that would target only a small portion of the virus's spike protein. The vaccine has shown promise in laboratory experiments, and more vaccines could be necessary in the years ahead as additional SARS-CoV-2 variants emerge.

In the emptiness of space, Voyager I detects plasma 'hum'

NASA's Voyager I spacecraft has long since zipped past the edge of the solar system through the heliopause - the solar system's border with interstellar space - into the interstellar medium. Now, its instruments have detected the constant drone of interstellar gas (plasma waves).

Biomarker detects severe COVID-19 early on

Severe cases of COVID-19 can now be detected at an early stage. Researchers have identified the first biomarker that can reliably predict which patients will develop severe symptoms. This can help to improve the treatment of severe cases of COVID-19.

3D printing lays the foundation for a new range of diagnostic tests

Researchers have developed a 3D printing technique that extends the possibilities of lateral flow testing. These tests are widespread in the form of the classic pregnancy test and the COVID-19 self-tests. With the new printing technique, advanced diagnostic tests can be produced that are quick, cheap, and easy to use.

SARS-CoV-2 research: Second possible effective mechanism of remdesivir discovered

After infection, SARS-CoV-2 causes the host cell to produce new virus particles and suppresses host cell defence mechanisms. Virus protein nsP3 plays a central role in the latter process. Using structural analyses, researchers have now discovered that a decomposition product of the remdesivir binds to nsP3. This previously unknown effective mechanism may be important for the development of new...

Microneedle patch delivers antibiotics locally in the skin

MRSA skin infections are often treated with intravenous injection of antibiotics, which can cause significant side effects and promote the development of resistant bacterial strains. To solve these problems, researchers are developing a microneedle patch that delivers antibiotics directly into the affected skin area. New results show that the microneedle patch effectively reduces MRSA bacteria in...

How Legionella makes itself at home

Scientists have discovered a key protein that helps the bacteria that causes Legionnaires' disease to set up house in the cells of humans and other hosts. The findings could offer insights into how other bacteria are able to survive inside cells, knowledge that could lead to new treatments for a wide variety of infections.

Light emitters for quantum circuits

The promise of a quantum internet depends on the complexities of harnessing light to transmit quantum information over fiber optic networks. A potential step forward was reported today by researchers who developed integrated chips that can generate light particles on demand and without the need for extreme refrigeration.

This system helps robots better navigate emergency rooms

Computer scientists have developed a more accurate navigation system that will allow robots to better negotiate busy clinical environments in general and emergency departments more specifically. The researchers have also developed a dataset of open source videos to help train robotic navigation systems in the future.