Manipulating collective motions of electrons and solvent molecules in a polar liquid
Researchers at the Max-Born-Institute have now mapped the linear and nonlinear optical polaron response using ultrafast two-dimensional spectroscopy in the THz frequency range. As they discuss in the current issue of Physical Review Letters, multi-ph.....»»
The biological marvels of the seabed are being mined to create commercial products—here are the risks
Thousands of genes from deep-sea marine life are being used to create new commercial products ranging from pharmaceuticals to cosmetics. Genes are segments of DNA that provide instructions for making other molecules that are essential for the structu.....»»
How large language models are changing collective intelligence
Within teams, organizations, markets and online communities, ideas from a larger group can help to solve complex problems. Large language models (LLMs) are emerging as powerful tools to unlock even greater potential. Picture an online forum where tho.....»»
Scientists develop method to control timing of synthetic DNA droplet division
Many cellular functions in the human body are controlled by biological droplets called liquid-liquid phase separation (LLPS) droplets. These droplets, made of soft biological materials, exist inside living cells but are not enclosed by membranes like.....»»
"Tamed" molecules for more sustainable catalysts: Chemists succeed in synthesizing a spectacular gallium compound
Catalysts play an important role in the manufacture of many products that we encounter in everyday life—for example in cars for exhaust gas purification or in the chemical industry in the production of fertilizers. Catalysts ensure that these react.....»»
Ultra-high speed camera for molecules: Attosecond spectroscopy captures electron transfer dynamics
In nature, photosynthesis powers plants and bacteria; within solar panels, photovoltaics transform light into electric energy. These processes are driven by electronic motion and imply charge transfer at the molecular level. The redistribution of ele.....»»
In the gateway to the Arctic, fat, ice and polar bears are crucial. All three are in trouble.
Searching for polar bears where the Churchill River dumps into Canada's massive Hudson Bay, biologist Geoff York scans a region that's on a low fat, low ice diet because of climate change......»»
Extreme polar light environment of the North and South Poles sustains biodiversity, researchers suggest
Researchers working in Finland propose that the unique light environment of the Earth's polar regions creates conditions that result in circumpolar hybrid zones around the North and the South Poles. These extreme conditions increase the synchrony of.....»»
First polar bear spotted in Iceland since 2016 is shot dead by police
A polar bear was spotted in Iceland for the first time since 2016—and was promptly shot dead by police......»»
New data science tool greatly speeds up molecular analysis of our environment
A research team led by scientists at the University of California, Riverside, has developed a computational workflow for analyzing large data sets in the field of metabolomics, the study of small molecules found within cells, biofluids, tissues, and.....»»
How a bacterial pathogen that causes dysentery manipulates molecular activity to assure its survival
Virginia Tech researchers have learned how bacteria manipulate molecules to infect the host organism. Daniel Capelluto and his research team have discovered the mechanism by which the bacterial pathogen Shigella flexneri, the causative agent of dysen.....»»
Analysis of heterostructures for spintronics shows how two desired quantum-physical effects reinforce each other
Spintronics uses the spins of electrons to perform logic operations or store information. Ideally, spintronic devices could operate faster and more energy-efficiently than conventional semiconductor devices. However, it is still difficult to create a.....»»
Scientists say there is enough evidence to agree to global action on microplastics
Science has provided more than sufficient evidence to inform a collective and global approach to tackle the continued spread of plastic pollution, according to a new report......»»
Detailed model suggests organic matter on Mars was formed from atmospheric formaldehyde
Although Mars is currently a cold, dry planet, geological evidence suggests that liquid water existed there around 3 to 4 billion years ago. Where there is water, there is usually life. In their quest to answer the burning question about life on Mars.....»»
Arctic warming may fuel ice formation in clouds, observations suggest
The Arctic frequently experiences temperatures that support the formation of mixed-phase clouds that contain supercooled liquid droplets and ice crystals. The composition of such clouds plays a crucial role in the region's energy balance and climate.....»»
Groundwater cleanup boost: Tailoring 3D media for DNAPL contaminant removal
Groundwater contamination by organic pollutants, such as non-aqueous phase liquid (DNAPL), poses significant environmental and health risks. These contaminants, often released from industrial activities, can persist in the subsurface environment, for.....»»
First liquid-liquid extraction trial finds porous liquids can separate harmful or unwanted alcohols from mixtures
A world-first study has successfully used porous liquids to achieve liquid-liquid separation for the first time, creating exciting potential for advancing both environmental sustainability and public health......»»
How to prepare for a stormy "supercharged" September
The effects of climate change have become an ominous presence in our lives, and the dramatic media monikers that accompany them—bomb cyclones, atmospheric rivers, thundersnow, black swan events, heat domes, polar vortexes—sound almost biblical......»»
Open Wave-Receivers featured in ‘Living Radio Lab’ film
Living Radio Lab (2023) is a film by Francesca Oldfield that documents Shortwave Collective’s contribution to the Struer Tracks biennial of sound and listening, which took place on August 23-27, 2023 in Struer, Denmark. Shortwave Collective wrote.....»»
Low-noise amplifiers aboard the Arctic Weather Satellite
The Arctic Weather Satellite (AWS) of the European Space Agency (ESA) was sent on its journey to a polar orbit 600 km above the Earth on August 16, 2024. On board: four low-noise amplifiers (LNAs) from the Fraunhofer Institute for Applied Solid State.....»»
Team discovers naturally occurring DNA-protein hybrids
Thanks to a serendipitous discovery and a lot of painstaking work, scientists can now build biohybrid molecules that combine the homing powers of DNA with the broad functional repertoire of proteins—without having to synthesize them one by one, res.....»»