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Phys.org / A year after undermining Bredt's rule, scientists make cage-shaped, double-bonded molecules that defy expectations
Organic chemistry is packed with rules about structure and reactivity, especially when it comes to making and breaking chemical bonds. The rules governing how these bonds, which hold atoms together in molecules, form and ...
Phys.org / Microplastics in the atmosphere: Higher emissions come from land areas than from the ocean, study finds
The atmosphere is an important transport medium that carries microplastics to even the most remote parts of the world. These microplastics can be inhaled and pose a health risk to humans and animals. They can also settle ...
Phys.org / Saturday Citations: A weird, extinct life form; cholesterol hacking; interspecies prosociality of whales
It's Saturday! This week, in an eminently practical analysis of the Boltzmann brain conjecture, physicists put constraints on the idea that memories could arise from random fluctuations in entropy rather than reflecting the ...
Medical Xpress / Psychiatrists hope chat logs can reveal the secrets of AI psychosis
"You're not crazy," the chatbot reassured the young woman. "You're at the edge of something."
Phys.org / Rats demonstrate ability to replay episodic memories in complex experimental settings
In a new study Indiana University researchers observed episodic memory in rats to a degree never documented before, suggesting that rats can serve as a model for complex cognitive processes often considered exclusively human. ...
Phys.org / Astrophysicists discover largest sulfur-containing molecular compound in space
Researchers at the Max Planck Institute for Extraterrestrial Physics (MPE), in collaboration with astrophysicists from the Centro de Astrobiología (CAB), CSIC-INTA, have identified the largest sulfur-bearing molecule ever ...
Medical Xpress / Microbes living in our mouths could hold the key to obesity prevention
Scientists may have found a new way to spot early signs of obesity, which could lead to novel prevention strategies. A study published in the journal Cell Reports has discovered that people living with obesity have a distinct ...
Medical Xpress / Two days of oatmeal can reduce cholesterol level
A short-term oat-based diet appears to be surprisingly effective at reducing the cholesterol level. This is indicated by a trial by the University of Bonn, which has now been published in Nature Communications. The participants ...
Dialog / Using amino acids as fuels to make conductive graphene
Graphene has drawn attention as a scientific curiosity owing to its record conductivities, strength and thermal properties. But now, it's starting to make its way into a number of real-world applications, from batteries to ...
Medical Xpress / HIV resistance to lenacapavir weakens the virus's ability to replicate
Lenacapavir (LEN) is an antiviral medication used to treat and prevent HIV/AIDS and was first approved for individuals with drug-resistant infections in 2022. While there is still no vaccine for the virus, the twice-yearly ...
Phys.org / Scientists may have solved 66 million-year-old mystery of how Earth's greenhouse age ended
A 66 million-year-old mystery behind how our planet transformed from a tropical greenhouse to the ice-capped world of today has been unraveled by scientists. Their new study has revealed that Earth's massive drop in temperature ...
Phys.org / Scientists may have discovered a new extinct form of life
Prototaxites are something of a prehistoric mystery. They were the first giant organisms on land, towering over ancient landscapes at heights of up to 8 meters. They had smooth trunk-like pillars and no branches, leaves or ...
