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Medical Xpress / Titanium particles may explain why antibiotics fail against dental implant infections
Dental implants have given tens of millions of people something dentures never could: a full set of fixed and fully functioning teeth. Unfortunately, 10% to 20% of implant patients eventually experience an aggressive jawbone ...
Phys.org / Arctic Ocean food chain is disrupted as a key tipping point has now been passed
An irreversible shift in the chemical makeup of the Arctic Ocean driven by climate change is disrupting the region's food chain, a study suggests. Widespread loss of Arctic sea ice has led to a sharp fall in levels of a key ...
Phys.org / New MRI sensors detect target molecules in the brain and body with high sensitivity
When doctors and scientists want to see inside a body, magnetic resonance imaging (MRI) is a powerful tool. MRI can noninvasively capture detailed images of the body's muscles, organs, and bones. It can monitor blood flow ...
Phys.org / Red dwarf stars detected 'eating' Earth-like planets
Astronomers have found some of the strongest evidence yet that stars can swallow their own planets. A new study, published in Monthly Notices of the Royal Astronomical Society, supports the long-held belief that young stars ...
Phys.org / Quantum entanglement provides a new framework for understanding chemical bonding
Chemical bonding is one of the central organizing principles of the microscopic world. It determines how atoms combine and thereby governs a wide range of physical and chemical properties of quantum systems across many length ...
Phys.org / Mineral clues in Gale Crater track ancient Mars climate change
While NASA imagery has shown evidence of ancient rivers and lakes on Mars that transitioned to dry dunes, uncertainty remains over the timing of the environmental changes that may have contributed to these shifts.
Phys.org / Introduced wild pigs linked to fewer invasive plants, while native deer show the opposite pattern
Wild pigs are generally considered among the world's most problematic invasive mammals. But a major new study from Aarhus Universitet shows that the introduced animals may actually have beneficial effects in North American ...
Phys.org / New ammonia-making method could upend one of industry's dirtiest processes
As our world's population grows, so does the demand for ammonia—a key ingredient in fertilizer. The International Renewable Energy Agency estimates that ammonia production must quadruple by 2050 to feed the increase in global ...
Phys.org / Turtles finally have a place in the tree of life thanks to an X‑ray study of South African fossils
The origin of turtles has always been a bit of a puzzle for scientists who study the evolution of animals. To this day, where they fit in the tree of life remains a highly debated topic.
Phys.org / Neanderthal ancestry may lower defenses against common DNA viruses in people today
Researchers have found surprising links that show that Neanderthal ancestry influences our immune system today in ways more nuanced than previously recognized. Their work is published in the journal Genome Biology and Evolution.
Phys.org / How bacteria survive with almost no oxygen— and why blocking one enzyme could aid new antibiotics
Researchers in Leiden have, for the first time, observed how a specialized enzyme helps bacteria stay alive when oxygen levels are low, and how that process can be blocked. The study, published in Science Advances, opens ...
Phys.org / A giant warm wave is crossing the Pacific, signaling an El Niño that could alter weather worldwide this year
Waves of higher, warmer water move eastward across the Pacific Ocean a few months before an El Niño emerges. Several have shown up in 2026 satellite data.
