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Phys.org / Water molecules actively reshape chiral catalyst structure, research shows

Researchers have analyzed the stepwise hydration of prolinol, a molecule widely used as a catalyst and as a building block in chemical synthesis. The study shows that just a few water molecules can completely change the preferred ...

3 hours ago in Chemistry
Phys.org / ChatGPT is in classrooms. How should educators now assess student learning?

Generative artificial intelligence (GenAI) is now a reality in higher education, with students and professors integrating chatbots into teaching, learning and assessment. But this isn't just a technical shift; it's reshaping ...

4 hours ago in Other Sciences
Phys.org / Webb unveils nature of distant ultraviolet-luminous galaxy CEERS2-588

Astronomers from the University of Tokyo in Japan and elsewhere have employed the James Webb Space Telescope (JWST) to observe a distant ultraviolet-luminous galaxy known as CEERS2-588. Results of the observational campaign, ...

23 hours ago in Astronomy & Space
Phys.org / Pulsar timing hints at a nearby dark matter 'sub-halo'

A group of US astronomers may have uncovered the first evidence for a dark matter sub-halo lurking just beyond our stellar neighborhood. Reporting their findings in Physical Review Letters, a team led by Sukanya Chakrabarti ...

23 hours ago in Astronomy & Space
Phys.org / Lahontan Basin cave burials 'neither rare nor uncommon,' says new study

In a study published in American Antiquity, Dr. David Madsen and his colleagues address the proposition that the lower Lahontan drainage basin (LLDB), located in the Intermountain West, is "unique" for the use of caves and ...

23 hours ago in Other Sciences
Phys.org / How eggs get built: Cells use actin and microtubules as a coordinated scaffold

A Northwestern Medicine study has shed light on one of the most intricate construction projects in biology: how cells build and coordinate the internal scaffolding needed to create a healthy egg. The research, published in ...

18 hours ago in Biology
Phys.org / Light-based Ising computer runs at room temperature and stays stable for hours

A team of researchers at Queen's University has developed a powerful new kind of computing machine that uses light to take on complex problems such as protein folding (for drug discovery) and number partitioning (for cryptography). ...

21 hours ago in Physics
Medical Xpress / i-DNA 'peek-a-boo structures' form in living cells and regulate genes linked to cancer

DNA's iconic double helix does more than "just" store genetic information. Under certain conditions, it can temporarily fold into unusual shapes. Researchers at Umeå University, Sweden, have now shown that one such structure, ...

20 hours ago in Oncology & Cancer
Phys.org / Encapsulated PbS quantum dots boost solar water splitting without sacrificial agents

A research team affiliated with UNIST has developed stable and efficient chalcogenide-based photoelectrodes, addressing a longstanding challenge of corrosion. This advancement paves the way for the commercial viability of ...

20 hours ago in Nanotechnology
Phys.org / Computer simulations reveal hurricane currents can knock down surface wave heights

Using advanced computer simulations, researchers from the University of Rhode Island's Graduate School of Oceanography (GSO) have concluded how and why strong ocean currents modify surface waves. "Our primary finding is that ...

22 hours ago in Earth
Medical Xpress / Surgical innovation may cut ovarian cancer risk by nearly 80%

A prevention strategy developed by Canadian researchers can reduce the risk of the most common and deadly form of ovarian cancer by nearly 80%, according to a new study published today in JAMA Network Open by researchers ...

21 hours ago in Oncology & Cancer
Phys.org / Why wolf control saves some caribou calves: Terrain decides which predators kill

Reducing wolves to protect endangered caribou doesn't always deliver the expected results, and the shape of the land may be the deciding factor.

16 hours ago in Biology