Phys.org news

Phys.org / How cells preserve mitochondrial DNA quality across generations

Researchers from Karolinska Institutet have discovered how mammalian cells prevent the gradual buildup of harmful mutations in mitochondrial DNA, the small but vital genome that powers every cell. The study, published in ...

15 hours ago in Biology
Phys.org / Offsetting blue carbon benefits: Mangrove tree stems identified as previously underestimated methane source

Mangrove ecosystems rank among the most efficient "blue carbon" systems on Earth, capable of absorbing and storing vast quantities of atmospheric carbon dioxide (CO2). However, mangroves also release methane (CH4), a potent ...

14 hours ago in Earth
Phys.org / Reading a quantum clock costs more energy than running it, study finds

A study led by the University of Oxford has identified a surprising source of entropy in quantum timekeeping—the act of measurement itself. In a study published in Physical Review Letters, scientists demonstrate that the ...

14 hours ago in Physics
Phys.org / Mosquito reproduction may hinge on E93 gene that links blood meals to energy use

Mosquito-borne diseases, including dengue, Zika, and yellow fever, continue to pose a significant global health threat, infecting millions of people annually. Yet current control efforts face growing challenges, driven by ...

14 hours ago in Biology
Phys.org / Dark-colored lichens cause underestimation in Antarctic vegetation mapping, study reveals

A research team from the Aerospace Information Research Institute of the Chinese Academy of Sciences (AIRCAS), in collaboration with Argentina's Center for Advanced Studies in Earth Sciences and Biodiversity (CADIC-CONICET), ...

15 hours ago in Biology
Phys.org / How plants decide when to flower: Scientists discover a phosphorus-responsive switch

Phosphorus, a key ingredient in fertilizers, is running out. The world's food systems depend on phosphorus mined from limited reserves, yet much of what is applied to fields washes away, leaving soils increasingly depleted. ...

15 hours ago in Biology
Phys.org / ALMA resolves close companion orbiting giant red star

Close companions can influence stellar evolution in many ways. While some companions can be detected around young stellar objects, direct observational evidence of companions around asymptotic giant branch (AGB) stars or ...

16 hours ago in Astronomy & Space
Phys.org / Simultaneous imaging of intracellular DNA and RNA using harmless light

NIMS, in collaboration with Nagoya University, Gifu University, and the University of Adelaide, has developed a method for simultaneously imaging DNA and RNA inside cells using harmless infrared to near-infrared light.

16 hours ago in Biology
Phys.org / College degree still offers strong financial returns despite student loan debt, study finds

Even after factoring in student loan payments, completing a college degree continues to pay off, according to new research from Washington University in St. Louis' Center for Social Development (CSD) at the Brown School.

15 hours ago in Other Sciences
Phys.org / Smarter magpies linked to social network connections

The social interactions Western Australian magpies experience in their first year of life affects their intelligence, according to a new study.

16 hours ago in Biology
Phys.org / Controlling triple quantum dots in a zinc oxide semiconductor

Quantum computers have the potential to solve certain calculations exponentially faster than a classic computer could, but more research is desperately needed to make their practical use a reality. Quantum computers use a ...

16 hours ago in Physics
Phys.org / Adaptive tracking theory of molecular evolution challenges mutation neutrality

For a long time, evolutionary biologists have thought that the genetic mutations that drive the evolution of genes and proteins are largely neutral: they're neither good nor bad, but just ordinary enough to slip through the ...

20 hours ago in Biology