Vitamin D Failed to Stop COVID, Other Respiratory Infections
Vitamin D supplements did not ward off COVID-19 or other respiratory infections, two randomized controlled trials showed. Among 6,200 participants in a phase III study from the U.K., 2.6% of those in the control group developed COVID-19 compared with 3.6% of those who received 800 IU vitamin D daily (OR 1.39, 95% CI 0.98-1.97) and […]
Fewer Headache Days With Acupuncture
Acupuncture helped reduce the frequency of chronic tension-type headaches (CTTH), a randomized controlled trial in China found. More than two-thirds (68.2%) of people with CTTH who received true acupuncture reported at least a 50% reduction in the number of monthly headache days at week 16, compared with 48.1% who had superficial acupuncture (OR 2.65, 95% […]
New Fermi arcs could provide a new path for electronics
Newly discovered Fermi arcs that can be controlled through magnetism could be the future of electronics based on electron spins. These new Fermi arcs were discovered by a team of researchers from Ames Laboratory and Iowa State University, as well as collaborators from the United States, Germany, and the United Kingdom. During their investigation of […]
Breakup of a single chemical bond measured
The team used a high-resolution atomic force microscope (AFM) operating in a controlled environment at Princeton’s Imaging and Analysis Center. The AFM probe, whose tip ends in a single copper atom, was moved gradually closer to the iron-carbon bond until it was ruptured. The researchers measured the mechanical forces applied at the moment of breakage, […]
Reconfigurable metasurfaces provide nanoscale light control: Technique inspired by the art of paper cutting used to make metasurfaces that could benefit optical displays and information encoding
Researchers have designed electromechanically reconfigurable ultrathin optical elements that can be controlled and programmed on a pixel-by-pixel level. These versatile metasurfaces could offer a new chip-based way to achieve nanoscale control of light, which could lead to better optical displays, information encoding and digital light processing. “Metasurfaces are ultrathin and compact optical elements that can […]
No more finger pricks: A continuous glucose monitor benefits patients with diabetes in more ways than one
A 15-center study of 175 patients with poorly controlled type 2 diabetes in JAMA found that continuous glucose monitoring, compared to blood glucose meter monitoring, or finger pricking, significantly decreased their hemoglobin A1C over eight months (-1.1% versus -0.16%, respectively.) Although the benefits of continuous glucose monitoring for patients with diabetes has been demonstrated before, […]