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Phys.org / Toothbrush-activated powder whitens, repairs and protects teeth
Even with regular brushing, teeth can become stained from genetic factors or consuming foods and drinks like tomatoes and coffee. Chemical whiteners can help, but they can also damage teeth in the process. So, researchers ...
Phys.org / Data-driven 3D chromosome model reveals structural and dynamic features of DNA
Chromosomes are masters of organization. These long strings of DNA fold down into an ensemble of compact structures that keep needed parts of the genome accessible while tucking away those that aren't used as often. Understanding ...
Phys.org / Red flowers have a 'magic trait' to attract birds and keep bees away
For flowering plants, reproduction is a question of the birds and the bees. Attracting the right pollinator can be a matter of survival—and new research shows how flowers do it is more intriguing than anyone realized, and ...
Medical Xpress / A curiosity-driven journey toward understanding brain folding
The human brain's soft folds and ridges, arising in early development and continuing through the first 18 months of life, are a visual icon for intelligence itself. Peeling back the layers of this fundamental biological process ...
Phys.org / Artificial nighttime lighting is suppressing moth activity, new research shows
Moths move significantly less when exposed to artificial nighttime light, new research shows. Moths' attraction to artificial light, such as streetlights, is common knowledge and has been much studied. But, as many people ...
Phys.org / Hafted stone tools in China suggest early hominins were more inventive than thought
A newly excavated archaeological site in central China is reshaping long-held assumptions about early hominin behavior in Eastern Asia. Led by the Chinese Academy of Sciences, an international team of researchers conducted ...
Phys.org / Edison's 1879 bulb experiments may have unintentionally produced graphene
What do Thomas Edison and 2010 Nobel Prize in physics winners Konstantin Novoselov and Andre Geim have in common? According to a recent publication from the lab of Rice University's James Tour in ACS Nano, it could be graphene—an ...
Phys.org / Self-employed working hours return to pre-COVID levels after five year slump
The working hours and happiness of the self-employed are starting to recover—five years on from the downturn induced by the pandemic, research from the University of Liverpool Management School and LSE reveals. But the ...
Medical Xpress / Researchers pioneer contactless health monitoring
When you think about monitoring heart and breathing rates, you likely picture a wearable device—a wristband, chest strap, or sticky patch connected to a maze of wires. But what if monitoring your breathing or heart rate ...
Medical Xpress / Single gene found to influence gut bacteria balance and IBD susceptibility
Two recent studies from the University of California, Riverside, published in the same issue of Gut Microbes highlight the role of a gene called PTPN2 in protecting the gut from harmful bacteria linked to inflammatory bowel ...
Medical Xpress / Why parents turn to social media about kids' drug use
University of Texas at Arlington Professor Dana Litt contributed to a study led by Alex Russell, assistant professor at Harvard Medical School, that found many parents turn to online peer advice when facing concerns about ...
Phys.org / How defects make permanent magnets even more efficient
Rare-earth magnets are essential for electric motors in vehicles, drones, and trains, forming the backbone of modern, environmentally friendly mobility. These are not simple blocks of metal, but carefully engineered materials ...
