Phys.org news
Phys.org / Understanding the link between nucleotide metabolism and chromatin assembly
A Northwestern Medicine study has revealed a previously unknown connection between two fundamental cellular processes, offering fresh insight into how human cells build and maintain chromatin, according to findings published ...
Phys.org / How population bottlenecks shape bacterial cooperation and competition
Microbes often display cooperative behavior in which individual cells put in work and sacrifice resources to collectively benefit the group. But sometimes, "cheater" cells in the group may reap the benefits of this cooperation ...
Phys.org / Searching for the centromere: Diversity in pathways key for cell division
Despite the immense amount of genetic material present in each cell, around 3 billion base pairs in humans, this material needs to be accurately divided in two and allocated in equal quantities. The centromere, located in ...
Phys.org / Dark matter and neutrinos may interact, challenging standard model of the universe
Scientists are a step closer to solving one of the universe's biggest mysteries as new research finds evidence that two of its least understood components may be interacting, offering a rare window into the darkest recesses ...
Phys.org / FAST J0139+4328 is a low-surface-brightness galaxy, deep imaging reveals
Astronomers from Serbia and Russia have conducted deep optical observations of a cloud of neutral atomic hydrogen, designated FAST J0139+4328. Results of the observational campaign, published December 31 on the arXiv preprint ...
Phys.org / Ammonites survived asteroid impact that killed off dinosaurs, new evidence suggests
In the aftermath of the giant asteroid that crashed into the Yucatan Peninsula about 66 million years ago, approximately 75% of all species on Earth were wiped out, including the dinosaurs. Among those thought to have perished ...
Phys.org / Making the invisible visible: Space particles become observable through handheld invention
You can't see, feel, hear, taste or smell them, but tiny particles from space are constantly raining down on us.
Phys.org / Smartphone use cuts into school hours, with social media leading the way
University of California, San Francisco investigators measured smartphone app activity during school hours among US adolescents and reported an average of 1.16 hours of use, with social media apps taking up the most time.
Phys.org / Scientists use string theory to crack the code of natural networks
For more than a century, scientists have wondered why physical structures like blood vessels, neurons, tree branches, and other biological networks look the way they do. The prevailing theory held that nature simply builds ...
Phys.org / Antiferromagnetic metal exhibits diode-like behavior without external magnetic field
Antiferromagnetic (AF) materials are made up of atoms or molecules with atomic spins that align in antiparallel directions of their neighbors. The magnetism of each individual atom or molecule is canceled out by the one next ...
Phys.org / Language shapes visual processing in both human brains and AI models, study finds
Neuroscientists have been trying to understand how the brain processes visual information for over a century. The development of computational models inspired by the brain's layered organization, also known as deep neural ...
Phys.org / 60,000-year-old traces of world's oldest arrow poison reveal early advanced hunting techniques
Researchers from South Africa and Sweden have found the oldest traces of arrow poison in the world to date. On 60,000-year-old quartz arrowheads from Umhlatuzana Rock Shelter in KwaZulu-Natal, South Africa, researchers have ...
