148 articles from FRIDAY 8.12.2023

Federal agency’s plan to disclose university misconduct findings splits academics

The U.S. government wants to strip away some of the secrecy surrounding university investigations of research misconduct by publicizing findings that institutions might otherwise keep confidential. Advocates of greater transparency say the change, proposed by the federal Office of Research Integrity (ORI), would boost public confidence in research and correct the scientific record...

Reassessing what we can expect from peptides in disease detection

Based on blood tests, it is possible to detect rare genetic diseases, recognize cancer, or determine the inflammation level in the body. Moreover, due to the rapid development of medical diagnostics based on biofluid analysis, many efforts are being made worldwide to adapt medical approaches, making personalized medicine the paradigm of future health care.

Conjoined 'racetracks' make new optical device possible

When we last checked in with Caltech's Kerry Vahala three years ago, his lab had recently reported the development of a new optical device called a turnkey frequency microcomb that has applications in digital communications, precision time keeping, spectroscopy, and even astronomy.

Parrots and songbirds have evolved distinct brain mechanisms, study shows

When humans learn to speak a language, we learn to produce new vocalizations and use them flexibly for communication, but how the brain is able to achieve this is an important but largely unanswered question, according to Zhilei Zhao, Klarman Fellow in neurobiology and behavior in the College of Arts and Sciences (A&S).

Patagonian people were riding horses long before Europeans arrived

The first Europeans to visit the southernmost tip of South America marveled at the people they met there. They were so tall, one version of the story goes, that Ferdinand Magellan’s 16th century crew dubbed them “Patagones,” from the Spanish for “big foot.” The name came to describe Patagonia, the southern tip of South America as well. Two hundred years after...

Polyethylene waste could be a thing of the past

An international team of experts undertaking fundamental research has developed a way of using polyethylene waste (PE) as a feedstock and converted it into valuable chemicals, via light-driven photocatalysis.

A ‘living skin’ is protecting the Great Wall of China from erosion

The Great Wall of China used to be much greater. What stands today is only a fraction of the expansive fortifications built on the country’s northern borders starting more than 2000 years ago and then eroded by time. But many sections of the remaining walls seem to be getting preservation help from an unlikely source: thin layers of bacteria, moss, lichen, and other organisms known as...

First-of-its-kind tyrannosaur fossil reveals what younglings ate

Fully grown tyrannosaurs were fearsome predators. With powerful jaws and piercing teeth, they could kill huge herbivores larger than themselves. But young tyrannosaurs ate different—and much smaller—prey, paleontologists report today in Science Advances . A new fossil with remains of a last supper confirms these carnivores switched their diet as they grew...

Prehistoric fast food: fossil reveals final meal of young tyrannosaur

Rare preserved stomach contents show young dinosaur feasted on drumsticks of speedy turkey-sized creatureA remarkable fossil preserving the last meal of a young tyrannosaur has been discovered in Canada, revealing the dinosaur had a taste for prehistoric fast food.While tyrannosaurs were some of the most fearsome dinosaurs to roam the planet, with adults boasting massive bodies, huge heads and...