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ScienceDaily: Computers & Math News |
| Revamped design could take powerful biological computers from the test tube to the cell Posted: 23 Mar 2022 12:16 PM PDT Researchers may have developed long-lived biological computers that could potentially persist inside cells. Researchers forgo the traditional DNA-based approach, opting instead to use the nucleic acid RNA to build computers. The results demonstrate that the RNA circuits are as dependable and versatile as their DNA-based counterparts. What's more, living cells may be able to create these RNA circuits continuously, something that is not readily possible with DNA circuits. |
| Fermi Arcs in an Antiferromagnet detected at BESSY II Posted: 23 Mar 2022 09:51 AM PDT Researchers have analyzed samples of NdBi crystals which display interesting magnetic properties. In their experiments including measurements at BESSY II they could find evidence for so called Fermi arcs in the antiferromagnetic state of the sample at low temperatures. This observation is not yet explained by existing theoretical ideas and opens up exciting possibilities to make use of these kind of materials for innovative information technologies based on the electron spin rather than the charge. |
| Single-photon source paves the way for practical quantum encryption Posted: 23 Mar 2022 09:51 AM PDT Researchers describe new high-purity single-photon source that can operate at room temperature. The source is an important step toward practical applications of quantum technology, such as highly secure communication based on quantum key distribution (QKD). |
| Quantum sensors: Measuring even more precisely Posted: 23 Mar 2022 09:51 AM PDT Two teams of physicists have designed the first programmable quantum sensor, and tested it in the laboratory. To do so they applied techniques from quantum information processing to a measurement problem. The innovative method promises quantum sensors whose precision reaches close to the limit set by the laws of nature. |
| Don’t underestimate undulating graphene Posted: 23 Mar 2022 08:45 AM PDT A theory suggests putting graphene on an undulating surface stresses it enough to create a minute electromagnetic field. The phenomenon could be useful for creating 2D electron optics or valleytronics devices. |
| Artificial intelligence tool may help predict heart attacks Posted: 22 Mar 2022 07:18 PM PDT Investigators have created an artificial intelligence-enabled tool that may make it easier to predict if a person will have a heart attack. |
| Design tweak helps prevent malfunction in yarns designed to store energy Posted: 22 Mar 2022 12:42 PM PDT Findings in a recent study could advance the development of 'smart textiles' that would capture energy from the wearer's movements. |
| Social media data could help predict the next COVID surge Posted: 22 Mar 2022 12:09 PM PDT New research suggests that a novel, short-term forecasting method, using machine learning and vast, anonymized datasets from social media accounts, significantly outperforms conventional models for projecting COVID trends at the county level. |
| Tiny, cheap solution for quantum-secure encryption Posted: 22 Mar 2022 12:08 PM PDT Engineers propose a new kind of encryption to protect data in the age of quantum computers. |
| Tackling large data sets and many parameter problems in particle physics Posted: 22 Mar 2022 10:30 AM PDT A new tool to break down and segment large data set problems and problems with many parameters in particle physics could have a wide range of applications. |
| The opto-ionic effect: Light may increase performance of fuel cells and lithium-ion batteries Posted: 22 Mar 2022 10:00 AM PDT Lithium-ion batteries, fuel cells and many other devices depend on the high mobility of ions in order to work properly. But there a large number of obstacles to such mobility. Researchers have now shown that light can be used to increase the mobility of ions and improve the performance of such devices. |
| Active video games provide alternative workout Posted: 22 Mar 2022 09:25 AM PDT Working out isn't known for being fun. But new active video and virtual reality games may help change that. Exergaming, or active video gaming, may be the perfect introduction to helping people be more active, according to new research. |
| 'Off label' use of imaging databases could lead to bias in AI algorithms Posted: 22 Mar 2022 09:25 AM PDT Significant advances in artificial intelligence (AI) over the past decade have relied upon extensive training of algorithms using massive, open-source databases. But when such datasets are used 'off label' and applied in unintended ways, the results are subject to machine learning bias that compromises the integrity of the AI algorithm, according to a new study. |
| Leveraging AI to work with cells Posted: 22 Mar 2022 09:25 AM PDT New research is moving medical science closer to personalized care by using artificial intelligence to more efficiently engineer stem cells. |
| Tomographic measurement of dielectric tensors? Posted: 22 Mar 2022 08:13 AM PDT A research team reported the direct measurement of dielectric tensors of anisotropic structures including the spatial variations of principal refractive indices and directors. The group also demonstrated quantitative tomographic measurements of various nematic liquid-crystal structures and their fast 3D nonequilibrium dynamics using a 3D label-free tomographic method. |
| Things are heating up for superconductors Posted: 22 Mar 2022 08:13 AM PDT Researchers have, by way of a number of theoretical calculations, shown that magnesium diboride becomes superconductive at a higher temperature when it is stretched. The discovery is a big step toward finding superconductive materials that are useful in real-world situations. |
| Qubits: Developing long-distance quantum telecommunications networks Posted: 22 Mar 2022 08:12 AM PDT Computers, smartphones, GPS: quantum physics has enabled many technological advances. It is now opening up new fields of research in cryptography (the art of coding messages) with the aim of developing ultra-secure telecommunications networks. There is one obstacle, however: after a few hundred kilometers within an optical fiber, the photons that carry the qubits or 'quantum bits' (the information) disappear. They therefore need 'repeaters', a kind of 'relay', which are partly based on a quantum memory. By managing to store a qubit in a crystal (a 'memory') for 20 milliseconds, a team has now taken a major step towards the development of long-distance quantum telecommunications networks. |
| Harnessing the power of AI to advance knowledge of Type 1 diabetes Posted: 21 Mar 2022 12:04 PM PDT An interdisciplinary team of researchers has used a new data-driven approach to learn more about persons with Type 1 diabetes, who account for about 5-10% of all diabetes diagnoses. The team gathered its information through health informatics and applied artificial intelligence (AI) to better understand the disease. |
| Computational approach enables spatial mapping of single-cell data within tissues Posted: 21 Mar 2022 10:21 AM PDT A new computational approach successfully combines data from parallel gene-expression profiling methods to create spatial maps of a given tissue at single-cell resolution. The resulting maps can provide unique biological insights into the cancer microenvironment and many other tissue types. |
| New technology to make charging electric cars as fast as pumping gas Posted: 21 Mar 2022 06:19 AM PDT New technology to make charging electric cars as fast as pumping gas. Quantum charging will cut the charging time of electric vehicles from ten hours to three minutes. |
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