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Phys.org / ROS-producing enzymes guide plant cell division and tissue patterning, gene-editing study shows

Reactive oxygen species (ROS) produced naturally during cellular metabolism often cause oxidative damage to cells. However, these molecules also play an important role in normal cellular signaling. While ROS are established ...

4 hours ago
Phys.org / Beetle-like borings in 70-million-year-old titanosaur fossils reshape Lo Hueco fossil story

Traces or perforations caused by living organisms after an animal's death can be found on various dinosaur bone remains. These perforations, known as bioerosion structures, provide information that helps us understand relationships ...

5 hours ago
Phys.org / Unknown 4,000-year-old stone circle in Belfast uncovered by archaeologists

Archaeologists have uncovered an unknown stone circle that dates back at least 4,000 years to the Late Neolithic or Early Bronze Age and was most likely used for ritual activities.

5 hours ago
Tech Xplore / Dog-bone design helps 2D nanoribbon transistors stay fast and efficient as widths shrink

Transistors, small semiconductor-based switches that control the flow of electricity, are central components of all electronic devices, from computers to smartphones, wearables, sensors and smart appliances. Over the past ...

9 hours ago
Medical Xpress / AI-guided microneedles bend at body temperature to speed diabetic wound healing

Chronic wounds remain a major health care challenge, especially for people with diabetes, who often experience delayed healing, persistent inflammation and a higher risk of infection. Traditional wound-closure methods such ...

2 hours ago
Medical Xpress / Some patient groups are far more vulnerable to near-perfect privacy attacks from medical AI

From detecting pneumonia on a chest X-ray to assessing whether a dark spot on the skin is benign or malignant, medical AI systems are playing an increasingly important role in clinical diagnosis. Unfortunately, the models ...

9 hours ago
Phys.org / A single origin story for the Milky Way's most mysterious stars

Lurking at the heart of the Milky Way, Sagittarius A* (Sgr A*) is a supermassive black hole four million times the mass of the sun, surrounded by a puzzling collection of young, massive stars whose orbits have long defied ...

11 hours ago
Phys.org / Metal hydride molecule trapped with laser light opens path to ultracold hydrogen

Controlling and trapping molecules, units of a substance consisting of two or more chemically bound atoms, with laser light is significantly more challenging than trapping individual atoms. This is because molecules exhibit ...

13 hours ago
Phys.org / Evidence identifies ancient Aboriginal mining in the Riverland

Flinders University researchers, in partnership with the River Murray and Mallee Aboriginal Corporation, have found evidence that points to 7,000 years of Aboriginal mining of stone at Sugarloaf Hill in South Australia's ...

6 hours ago
Phys.org / Novel crystal strategy delivers near-perfect zero thermal expansion from 11 K to 893 K

Almost every material expands when heated. Well-known examples include railroad tracks and concrete roadways, which feature visible expansion gaps to accommodate this effect. However, thermal expansion poses a far more acute ...

7 hours ago
Phys.org / Rising heat and humidity challenge energy-efficient data center cooling worldwide

Reliable operation of data centers has become essential to nearly all sectors of modern society, including health care, education, government services, power grid operation, banking, defense and disaster relief. New research ...

6 hours ago
Phys.org / May 2024 superstorm drew most ring current ions from Earth, not solar wind, research reveals

In May 2024, auroras were observed at unusually low latitudes across the globe, lighting up skies that rarely see such displays. Inside Earth's magnetosphere, the region of space surrounding our planet and dominated by its ...

6 hours ago