ScienceDaily: Matter & Energy News |
| Quantum computer programming basics Posted: 14 Jun 2022 03:41 PM PDT For would-be quantum programmers scratching their heads over how to jump into the game as quantum computers proliferate and become publicly accessible, a new beginner's guide provides a thorough introduction to quantum algorithms and their implementation on existing hardware. Deep-diving guide explains the basics, surveys major quantum algorithms and steps through implementing them on publicly available quantum computers. |
| River belt discovery helps scientists understand ancient rivers Posted: 14 Jun 2022 03:41 PM PDT A researcher has come up with a rule that connects channel belts to river patterns, finding that, in general, the more channels a river has, the narrower its channel belt. Since the physics shaping rivers is the same over time and place, the rule should hold for ancient rivers and rivers on other planets, too. |
| A biological super glue from mistletoe berries? Posted: 14 Jun 2022 11:16 AM PDT Researchers suggests that mistletoe viscin's ultra-stiff flexible fibers, which adhere to both skin and cartilage as well as to various synthetic materials, could have a range of applications -- both biomedical and beyond. |
| Companies’ use of renewable energy certificates masks inaction on carbon emissions Posted: 14 Jun 2022 11:15 AM PDT A new study argues that renewable energy certificates -- a market-based tool that certifies the bearer owns one megawatt hour of electricity produced from renewable energy sources -- generally do not reduce emissions and firms using them are overstating their climate mitigation claims. In one calculation, the researchers show how a sample of 115 companies between 2015 and 2019 reported a 31 per cent reduction in emissions. A closer analysis of that claim reveals that without including the purchase of ineffective RECs, the actual drop in emissions was roughly 10 per cent. |
| Real-time imaging of dynamic atom-atom interactions Posted: 14 Jun 2022 11:15 AM PDT Researchers have managed to observe and characterize dynamic assembly of metallic atoms using an ingenious combination of scanning transmission electron microscopy and a video-based tracking. By visualizing short-lived molecules, such as metallic dimers and trimers, that cannot be observed using traditional methods, the researchers open up the possibility of observing more such dynamic structures predicted by simulations. |
| Magnetic material could help monitor battery life Posted: 14 Jun 2022 11:15 AM PDT A new study shows how a magnetic material can be used to help monitor the amount of life left in a rechargeable battery before it needs to be recharged. |
| Scientists create nanoparticle that helps fight solid tumors Posted: 14 Jun 2022 11:15 AM PDT Researchers have discovered a possible new approach in treating solid tumors through the creation of a novel nanoparticle. |
| Double-layered catalyst generates more hydrogen Posted: 14 Jun 2022 09:27 AM PDT Engineers have developed a catalyst by adding a flat platinum interface to NiFe-layered double hydroxide (LDH). The new catalyst increases hydrogen production efficiency and displays 11.2 times higher activity than conventional catalysts. |
| Stem cells unraveled: We're one step closer to making organs in a dish Posted: 14 Jun 2022 09:27 AM PDT Using a mouse model, researchers have deciphered an alternative route that certain cells take to make organs and used that knowledge to exploit a new type of stem cells as a potential source of organs in a dish. |
| DNA nanotech safe for medical use, new study suggests Posted: 14 Jun 2022 09:26 AM PDT Advances in nanotechnology have made it possible to fabricate structures out of DNA for use in biomedical applications like delivering drugs or creating vaccines, but new research in mice investigates the safety of the technology. |
| Calculating the 'fingerprints' of molecules with artificial intelligence Posted: 14 Jun 2022 06:56 AM PDT With conventional methods, it is extremely time-consuming to calculate the spectral fingerprint of larger molecules. But this is a prerequisite for correctly interpreting experimentally obtained data. Now, a team has achieved very good results in significantly less time using self-learning graphical neural networks. |
| New, highly tunable composite materials--with a twist Posted: 14 Jun 2022 06:55 AM PDT Mathematicians have found that they can design a range of composite materials from moiré patterns created by rotating and stretching one lattice relative to another. Their electrical and other physical properties can change --s ometimes quite abruptly, depending on whether the resulting moiré patterns are regularly repeating or non-repeating. |
| Controlled fabrication of multimetallic building blocks for hybrid nanomaterials Posted: 14 Jun 2022 06:55 AM PDT Polymers with different metal complexes in their side chains are thought to be promising high-performance materials with a wide variety of applications. However, conventional fabrication methods are not suitable for constructing such polymers because controlling their resulting metal composition is complicated. Recently, scientists have developed a method to overcome this limitation and successfully produce multimetallic copolymers, which can be used as building blocks to create future hybrid materials. |
| New fire shelter prototypes could buy time for wildfire firefighters Posted: 14 Jun 2022 06:55 AM PDT Temperatures inside new wildfire shelter prototypes remained within survival limits for longer, and the shelters took longer to break open, compared with an industry standard. |
| Nanoparticle sensor can distinguish between viral and bacterial pneumonia Posted: 13 Jun 2022 12:06 PM PDT Many different types of bacteria and viruses can cause pneumonia, but there is no easy way to determine which microbe is causing a particular patient's illness. This uncertainty makes it harder for doctors to choose effective treatments because the antibiotics commonly used to treat bacterial pneumonia won't help patients with viral pneumonia. In addition, limiting the use of antibiotics is an important step toward curbing antibiotic resistance. |
| Low-tech -- just what the doctor ordered Posted: 13 Jun 2022 08:21 AM PDT Medical equipment that can be manufactured at low cost, is simple to use and can be easily maintained will help extend surgery to the 5 billion people worldwide who currently cannot get access to it, say researchers. They argue that surgical technology is often developed for well-resourced healthcare systems -- and is of little or no use in poorer settings where hospitals lack sophisticated support infrastructure or appropriately trained staff. |
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