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ScienceDaily · 02/22/2024 12:24 EDT

Photon upconversion: Steering light with supercritical coupling

Researchers have unveiled a novel concept termed 'supercritical coupling' that enables several folds increase in photon upconversion efficiency. This discovery not only challenges existing paradigms, but also opens a new direction in the control of light emission. Read more ›

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ScienceDaily
ScienceDaily · 02/22/2024 12:24 EDT

A new beginning: The search for more temperate Tatooines

Luke Skywalker's childhood might have been slightly less harsh if he'd grown up on a more temperate Tatooine -- like the ones identified in a new study. According to the study's authors, there are more climate-friendly planets in binary star systems -- in other words, those with two suns -- than previously known. And, they say, it may be a sign that, at least in some ways, the universe leans... Read more ›

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ScienceDaily
ScienceDaily · 02/22/2024 12:24 EDT

Cracking the code of neurodegeneration: New model identifies potential therapeutic target

Scientists have developed an innovative neural cell culture model, shedding light on the intricate mechanisms underlying neurodegeneration. Their research pinpointed a misbehaving protein as a promising therapeutic target in the treatment of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Read more ›

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ScienceDaily
ScienceDaily · 02/22/2024 12:23 EDT

Uncovering anxiety: Scientists identify causative pathway and potential cures

Quick-acting targeted therapies with minimal side effects are an urgent need for the treatment of anxiety-related disorders. While delta opioid receptor (DOP) agonists have shown 'anxiolytic' or anxiety-reducing effects, their mechanism of action is not well-understood. A new study highlights the role of specific neuronal circuits in the brain involved in the development of anxiety, and distinct mechanisms of action of the therapeutic DOP agonist -- KNT-127. Read more ›

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ScienceDaily
ScienceDaily · 02/22/2024 12:23 EDT

Scientists can tell where a mouse is looking and located based on its neural activity

Researchers have paired a deep learning model with experimental data to 'decode' mouse neural activity. Using the method, they can accurately determine where a mouse is located within an open environment and which direction it is facing, just by looking at its neural firing patterns. Being able to decode neural activity could provide insight into the function and behavior of individual neurons or even entire brain regions. Read more ›

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ScienceDaily
ScienceDaily · 02/22/2024 12:23 EDT

Three years later, search for life on Mars continues

Scientists suspect Mars once had long-lived rivers, lakes and streams. Today, water on Mars is found in ice at the poles and trapped below the Martian surface. Researchers now reveal that Mars also may have had hydrothermal systems based on the hydrated magnesium sulfate the rover identified in the volcanic rocks. Read more ›

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ScienceDaily
ScienceDaily · 02/22/2024 12:23 EDT

Brightest and fastest-growing: Astronomers identify record-breaking quasar

Astronomers have characterized a bright quasar, finding it to be not only the brightest of its kind, but also the most luminous object ever observed. Quasars are the bright cores of distant galaxies and they are powered by supermassive black holes. The black hole in this record-breaking quasar is growing in mass by the equivalent of one Sun per day, making it the fastest-growing black hole to date. Read more ›

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ScienceDaily
ScienceDaily · 02/22/2024 12:23 EDT

Treating newly-diagnosed Crohn's patients with advanced therapy leads to dramatic improvements in outcomes

A large-scale clinical trial of treatment strategies for Crohn's disease has shown that offering early advanced therapy to all patients straight after diagnosis can drastically improve outcomes, including by reducing the number of people requiring urgent abdominal surgery for treatment of their disease by ten-fold. Read more ›

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ScienceDaily
ScienceDaily · 02/22/2024 12:23 EDT

Damage to cell membranes causes cell aging

Researchers have discovered that damage to the cell membrane promotes cellular senescence, or cell aging. Read more ›

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ScienceDaily
ScienceDaily · 02/22/2024 12:23 EDT

Air pollution hides increases in rainfall

In a new study, researchers broke down how human-induced greenhouse gas and aerosol emissions influence rainfall in the United States. Greenhouse gas emissions increase rainfall, while aerosols have a long-term drying effect as well as short-term impacts that vary with the seasons. As aerosols decrease, their long-term drying effect will likely diminish, causing rainfall averages and extremes to rapidly increase. Read more ›

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ScienceDaily
ScienceDaily 2 place · 02/21/2024 21:39 EDT

Method identified to double computer processing speeds

Scientists introduce what they call 'simultaneous and heterogeneous multithreading' or SHMT. This system doubles computer processing speeds with existing hardware by simultaneously using graphics processing units (GPUs), hardware accelerators for artificial intelligence (AI) and machine learning (ML), or digital signal processing units to process information. Read more ›

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ScienceDaily
ScienceDaily · 02/21/2024 21:38 EDT

Climate change could push bowhead whales to cross paths with shipping traffic

The population of bowhead whales that migrates between the Bering and Beaufort Seas each year is a conservation success story, with today's population nearing -- if not exceeding -- pre-commercial whaling numbers. But climate change is shifting the whales' feeding grounds and migration patterns, potentially pushing them to spend more time in the paths of oncoming ships, according to a new study. Read more ›

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ScienceDaily
ScienceDaily · 02/21/2024 21:38 EDT

Little groundwater recharge in ancient Mars aquifer, according to new models

Mars was once a wet world. The geological record of the Red Planet shows evidence for water flowing on the surface -- from river deltas to valleys carved by massive flash floods. But a new study shows that no matter how much rainfall fell on the surface of ancient Mars, very little of it seeped into an aquifer in the planet's southern highlands. Read more ›

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ScienceDaily
ScienceDaily 3 place · 02/21/2024 21:38 EDT

Physicists discover a quantum state with a new type of emergent particles: Six-flux composite fermions

Physicists have reported a new fractional quantum Hall state that is very different from all other known fractional states and will invoke the existence of a new type of emergent particle, which they are calling six-flux composite fermions. Read more ›

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ScienceDaily
ScienceDaily 1 place · 02/21/2024 21:38 EDT

Air pollution linked to more signs of Alzheimer's in brain

People with higher exposure to traffic-related air pollution were more likely to have high amounts of amyloid plaques in their brains associated with Alzheimer's disease after death, according to a new study. Researchers looked at fine particulate matter, PM2.5, which consists of pollutant particles of less than 2.5 microns in diameter suspended in air. Read more ›

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ScienceDaily
ScienceDaily · 02/21/2024 16:05 EDT

Sleep improves ability to recall complex events

Sleep helps consolidate our memory of complex associations, thus supporting the ability to complete memories of whole events. Read more ›

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ScienceDaily
ScienceDaily · 02/21/2024 16:05 EDT

Butterfly and moth genomes mostly unchanged despite 250 million years of evolution

Comparison of over 200 high-quality butterfly and moth genomes reveals key insights into their biology, evolution and diversification over the last 250 million years, as well as clues for conservation. Read more ›

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ScienceDaily
ScienceDaily 3 place · 02/21/2024 16:04 EDT

Toxic elements found in stranded whales, dolphins over 15 years

Researchers evaluated the prevalence, concentration and tissue distribution of essential and non-essential trace elements, including heavy metal toxicants in tissue (blubber, kidney, liver, skeletal muscle, skin) and fecal samples collected from 90 whales and dolphins stranded in Georgia and Florida from 2007 to 2021. Read more ›

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ScienceDaily
ScienceDaily · 02/21/2024 16:04 EDT

Revolutionary breakthrough in solar energy: Most efficient QD solar cells

A research team has unveiled a novel ligand exchange technique that enables the synthesis of organic cation-based perovskite quantum dots (PQDs), ensuring exceptional stability while suppressing internal defects in the photoactive layer of solar cells. Read more ›

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