ScienceDaily: Top Technology News |
- Comparing face coverings in controlling expired particles
- Color-coded biosensor illuminates in real time how viruses attack hosts
- Atom-billiards with x-rays: A new approach to look inside of molecules
- 3D-printed nasal swabs work as well as commercial swabs for COVID-19 diagnostic testing, study finds
- Spin clean-up method brings practical quantum computers closer to reality
- Metal wires of carbon complete toolbox for carbon-based computers
| Comparing face coverings in controlling expired particles Posted: 25 Sep 2020 08:36 AM PDT Laboratory tests of surgical and N95 masks show that they do cut down the amount of aerosolized particles emitted during breathing, talking and coughing. Tests of homemade cloth face coverings, however, show that the fabric itself releases a large amount of fibers into the air, underscoring the importance of washing them.      |
| Color-coded biosensor illuminates in real time how viruses attack hosts Posted: 25 Sep 2020 08:36 AM PDT All viruses can only do damage by replicating inside the cells of another organism, their host. Researchers have now shown an important mechanism in this host-attacking process, at the single-molecule level in living cells. |
| Atom-billiards with x-rays: A new approach to look inside of molecules Posted: 25 Sep 2020 08:36 AM PDT Since these early days of quantum mechanics, it is known that photons also possess momentum. The photon's ability to transfer momentum was used in a novel approach by scientists to observe a fundamental process in the interaction of x-rays with atoms. |
| 3D-printed nasal swabs work as well as commercial swabs for COVID-19 diagnostic testing, study finds Posted: 25 Sep 2020 08:34 AM PDT A clinical trial provides evidence that 3D-printed alternative nasal swabs work as well for COVID-19 diagnostic testing as commercial synthetic flocked nasal swabs. Given the ongoing need for widespread COVID-19 testing, the researchers conclude that 3D printing technology offers a viable, cost-efficient option to address swab supply shortages. |
| Spin clean-up method brings practical quantum computers closer to reality Posted: 25 Sep 2020 08:33 AM PDT Researchers create a quantum algorithm that removes spin contaminants while making chemical calculations on quantum computers. This allows for predictions of electronic and molecular behavior with degrees of precision not achievable with classical computers and paves the way for practical quantum computers to become a reality. |
| Metal wires of carbon complete toolbox for carbon-based computers Posted: 24 Sep 2020 11:15 AM PDT Carbon-based computers have the potential to be a lot faster and much more energy efficient than silicon-based computers, but 2D graphene and carbon nanotubes have proved challenging to turn into the elements needed to construct transistor circuits. Graphene nanoribbons can overcome these limitations, but to date scientists have been made only semiconductors and insulators, not the metallic wires to connect them. UC Berkeley scientists have now achieved the goal of a metallic graphene nanoribbon. |
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