168 articles from TUESDAY 20.6.2023

High-tech pavement markers support autonomous driving in tough conditions, remote areas

Engineers are placing low-powered sensors in the reflective raised pavement markers that are already used to help drivers identify lanes. Microchips inside the markers transmit information to passing cars about the road shape to help autonomous driving features function even when vehicle cameras or remote laser sensing, called LiDAR, are unreliable because of fog, snow, glare or other...

Cuttlefish brain atlas created

Anything with three hearts, blue blood and skin that can change colors like a display in Times Square is likely to turn heads. Meet Sepia bandensis, known more descriptively as the camouflaging dwarf cuttlefish. Over the past three years, neuroscientists have put together a brain atlas of this captivating cephalopod: a neuroanatomical roadmap depicting for the first time the brain's overall...

Scientists unearth 20 million years of 'hot spot' magmatism under Cocos plate

A team of scientists has observed past episodic intraplate magmatism and corroborated the existence of a partial melt channel at the base of the Cocos Plate. Situated 60 kilometers beneath the Pacific Ocean floor, the magma channel covers more than 100,000 square kilometers, and originated from the Galápagos Plume more than 20 million years ago, supplying melt for multiple magmatic events -- and...

Environmental risks and opportunities of orphaned oil and gas wells

Researchers are leading an international team whose goal is to create a framework to help governments in the U.S. and around the world assess and prioritize remediation strategies for orphaned oil and gas wells. These inactive wells represent environmental risks since they have the potential to contaminate water supplies, degrade ecosystems, and emit methane and other air pollutants that are...

Directly imaging quantum states in two-dimensional materials

When some semiconductors absorb light, excitons (or particle pairs made of an electron bound to an electron hole) can form. Two-dimensional crystals of tungsten disulfide (WS2) have unique exciton states that are not found in other materials. However, these states are short lived and can change from one to another very quickly.

Scientists describe a novel way to manipulate exotic materials

An advance in a topological insulator material—whose interior behaves like an electrical insulator but whose surface behaves like a conductor—could revolutionize the fields of next-generation electronics and quantum computing, according to scientists at Oak Ridge National Laboratory.

Research identifies factors that make correcting misinformation about science more successful

In an article titled "A Meta-analysis of Correction Effects in Science-Relevant Misinformation" published in the journal Nature Human Behaviour, University of Pennsylvania social psychologists and communication scholars Man-pui Sally Chan and Dolores Albarracín explain the circumstances under which corrections of misinformation about science are most likely to work or fail, as well as the...

Topological bulk BICs enable compact, single-mode and beam-engineered QCLs

Electrically pumped semiconductor lasers are among the most important sources, owing to their high efficiency, compactness, and solid-state stability. For mid-infrared and terahertz radiation, quantum cascade lasers (QCLs) are the most important light sources operating via electrical pumping. To demonstrate single-mode laser emission, artificially designed distributed-feedback (DFB) gratings can...

Media coverage of climate change research does not inspire action, say scientists

The planet is warming because of human activities and the consequences will be devastating for all living beings, including humans. At present, everyone is potentially exposed this information in the media. But how do scientific journals and the media relay research related to these issues? Is the scientific focus of climate warming research reflected in what the media decided to present?

Computational mid-infrared photothermal imaging unveils intracellular tau aggregates

As a prominent form of amyloid protein, tau aggregates have emerged as a primary focus of research for uncovering the mechanisms underlying neurodegeneration. Various types of tau aggregates, including tau fibrils and oligomers, have been implicated in a wide range of neurodegenerative diseases. However, the formation mechanism of tau aggregates and the associated disease pathways remain poorly...

How scientific conferences are responding to abortion bans and anti-LGBTQ+ laws

When Claire Kouba heard that the American Geophysical Union’s (AGU’s) annual meeting would be held in New Orleans in 2025, she was worried. After the U.S. Supreme Court’s June 2022 decision overturning Roe v. Wade , which guaranteed a constitutional right to abortion, Louisiana had banned the procedure with few exceptions. Kouba—a hydrogeologist at...

In Montana lawsuit, a climate scientist takes the stand

Testimony ended today in a groundbreaking climate lawsuit being heard in a Montana state court. The suit, brought by 16 youth plaintiffs, argues that Montana’s energy policies contribute to climate change and therefore violate a right, enshrined in the state’s constitution, to “a clean and healthful environment.” It is the first youth-led climate lawsuit to be heard...