68 articles from FRIDAY 3.2.2023

Your native tongue holds a special place in your brain, even if you speak 10 languages

Most people will learn one or two languages in their lives. But Vaughn Smith, a 47-year-old carpet cleaner from Washington, D.C., speaks 24. Smith is a hyperpolyglot—a rare individual who speaks more than 10 languages. In a new brain imaging study, researchers peered inside the minds of polyglots like Smith to tease out how language-specific regions in their brains respond to...

Alondra Nelson to leave White House science office

Alondra Nelson, who led the White House Office of Science and Technology Policy (OSTP) during a tumultuous period last year, is leaving next week to return to her faculty position at the Institute for Advanced Study (IAS) in Princeton, New Jersey. Her decision was first reported by Axios. A 64-year-old sociologist, Nelson has a lengthy resume of “firsts” as she...

Repurposed drug battles ‘brain-eating’ amoeba

In the summer of 2021, a 54-year-old man was brought to a hospital in Northern California after an unexplained seizure. When an MRI revealed a mysterious mass in the left side of his brain, he was transferred to the University of California, San Francisco (UCSF), Medical Center. A brain biopsy and other tests revealed not a tumor, but an incredibly rare infection of the central nervous...

Ice cores show even dormant volcanoes leak abundant sulfur into the atmosphere

Volcanoes draw plenty of attention when they erupt. But new research led by the University of Washington shows that volcanoes leak a surprisingly high amount of their atmosphere- and climate-changing gases in their quiet phases. A Greenland ice core shows that volcanoes quietly release at least three times as much sulfur into the Arctic atmosphere than estimated by current climate models.

Two/quasi-two-dimensional perovskite-based heterostructures: Construction, properties and applications

Van der Waals heterostructures integrated from various two-dimensional (2D) layered materials provide fundamental building blocks for optoelectronic devices with novel functionalities, such as photovoltaic solar cells, light emitting diodes (LEDs) and photodetectors. Two-dimensional and quasi-two-dimensional perovskites (abbreviated as 2D perovskites hereafter) exhibit unique properties, such as...

Life in a violent country can be years shorter and much less predictable, even for those not involved in conflict

How long people live is less predictable and life expectancy for young people can be as much as 14 years shorter in violent countries compared to peaceful countries, according to a new study today from an international team, led by Oxford's Leverhulme Center for Demographic Science. It reveals a direct link between the uncertainty of living in a violent setting, even for those not directly...

Signal transmission in the immune and nervous system through NEMO

A cascade of various events is required for the transmission of signals within cells. These include several modifications of proteins to switch their function on or off. In order to ensure rapid signal transmission, signaling proteins transiently accumulate at specific sites in the cell, where they can form biomolecular condensates.

Improved estimates of carbon sinks and sources of northern ecosystems

A new study shows that a calculation method used by international measurement networks creates a systematic bias in carbon balance estimates for northern ecosystems. The study, led by the Finnish Meteorological Institute, shows that a machine learning method can be used to substantially reduce the error.

Outflows from baby star affect nearby star formation

Baby stars don't always play nice with their siblings. New observations show an outflow of high-speed gas from one baby star colliding with a nearby dense cloud of gas where other stars are in the process of being born. These observations clearly show the outflow from a baby star affecting a neighboring star forming cloud. It is still unknown if it disrupts or enhances star-formation when a baby...