Phys.org news

Phys.org / Optimized nickel particles improve catalyst performance for hydrogenation reactions

A research team led by Wang Guozhong from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has developed a novel method to precisely control the size of nickel (Ni) particles in catalysts, improving ...

Feb 7, 2025 in Chemistry
Phys.org / Bacterial species study challenges assumption that structural similarity predicts protein behavior

A new study published in Biochemistry sheds light on how bacteria regulate their genes, challenging long-held assumptions about protein behavior. The research compares how two bacterial species—Escherichia coli and Mycobacterium ...

Feb 7, 2025 in Biology
Phys.org / 'Temperamental' stars may be distorting exoplanet observations

"Temperamental" stars that brighten and dim over a matter of hours or days may be distorting our view of thousands of distant planets, suggests a new study led by UCL researchers.

Feb 7, 2025 in Astronomy & Space
Phys.org / New AI model deciphers the code in proteins that tells them where to go

Proteins are the workhorses that keep our cells running, and there are many thousands of types of proteins in our cells, each performing a specialized function. Researchers have long known that the structure of a protein ...

Feb 7, 2025 in Biology
Phys.org / Fiber image transmission technology for minimally invasive endoscope developed

Optical fibers are fundamental components in modern science and technology due to their inherent advantages, providing an efficient and secure medium for applications such as internet communication and big data transmission. ...

Feb 7, 2025 in Physics
Phys.org / Discovery of unexpected collagen structure shows greater diversity than previously believed

Collagen, the body's most abundant protein, has long been viewed as a predictable structural component of tissues. However, a new study led by Rice University's Jeffrey Hartgerink and Tracy Yu, in collaboration with Mark ...

Feb 7, 2025 in Chemistry
Phys.org / Antarctic snow harbors microplastics: New technique uncovers hidden pollution

Scientists have discovered microplastics in the snow near some of Antarctica's deep field camps, revealing how far-reaching plastic pollution has become. While not new, it's the first time these tiny pieces of plastic have ...

Feb 7, 2025 in Earth
Phys.org / Smaller fields and organic crops can boost pollinator diversity in grasslands

Biodiversity is under threat worldwide. While the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) estimated in 2019 that 1 million out of 8 million species are threatened with extinction, ...

Feb 7, 2025 in Biology
Phys.org / A planarian's guide to growing a new head

Cut off any part of this worm's body and it will regrow. This is the spectacular yet mysterious regenerative ability of freshwater flatworms known as planarians. The lab of Whitehead Institute Member Peter Reddien investigates ...

Feb 7, 2025 in Biology
Phys.org / Light-regulated movement patterns of hydrogen-producing green algae could improve photobioreactor design

Researchers from the University of Bayreuth and the Max Planck Institute for Dynamics and Self-Organization in Göttingen have investigated the movement patterns of unicellular, hydrogen-producing green algae under different ...

Feb 7, 2025 in Biology
Phys.org / Decoupling of water storage and rainfall in drylands highlights human impact

Drylands, characterized by an aridity index (AI) below 0.65, cover about 45% of the Earth's land and support more than 3 billion people. Severe water scarcity in these areas poses significant risks to human well-being and ...

Feb 7, 2025 in Earth
Phys.org / Balancing the pressure: How plant cells protect their vacuoles

Plants droop and shed their leaves when parched, but with a splash of water, their stems regain strength and their leaves unfurl. This dramatic transformation is a clear signal for us to reach for the watering can—and it ...

Feb 7, 2025 in Biology