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280,301 articles from PhysOrg
Migratory birds are on the move and nature-friendly farms can help them on their way
Every spring, hundreds of thousands of birds leave their winter habitat on Poyang, the largest freshwater lake in China, and fly north over the most densely populated region on Earth to reach their breeding grounds in Siberia. As with any long-distance journey you might take, these birds need to make stops where they can find a good meal and a chance to refuel.
Understanding climate warming impacts on carbon release from the tundra
The warming climate shifts the dynamics of tundra environments and makes them release trapped carbon, according to a new study published in Nature. These changes could transform tundras from carbon sinks into carbon sources, exacerbating the effects of climate change.
Indigenous businesses are worth billions but we don't know enough about them
Indigenous businesses generate about A$16 billion a year in revenue and employ more than 116,000 people—almost as many as the massive Coles retail group.
A powerful technique for tracking a protein's fleeting shape changes
Researchers at Weill Cornell Medicine have developed a powerful, new technique to generate "movies" of changing protein structures and speeds of up to 50 frames per second.
Generative AI model shows fake news has more impact when released at a steady pace without interruption
It's not at all clear that disinformation has, to date, swung an election that would otherwise have gone another way. But there is a strong sense that it has had a significant impact, nonetheless.
You could help minimize harm in a public attack. Here's what it means to be a 'zero responder'
The tragic Westfield attack in Sydney highlights the vulnerability of crowded public spaces. Six people were killed and many were injured by a knife-wielding attacker in a short period of time.
Scientists navigate the paradox of extreme cold events in a warming world
According to Copernicus Climate Change Service, February 2024 was the warmest February ever recorded globally.
Surrogate otter mom at aquarium is rehabilitating pup 'better than any human ever can'
Millie, a fatigued mother of an infant, was ready for a nap. So she grabbed her baby, flipped it around, threw it on her belly and started grooming its tail—a soothing behavior.
The rising flood of space junk is a risk to us on Earth—and governments are on the hook
A piece of space junk recently crashed through the roof and floor of a man's home in Florida. Nasa later confirmed that the object had come from unwanted hardware released from the international space station.
Global coral bleaching caused by climate change demands a global response
The fourth global coral bleaching event, announced this week, is an urgent wake-up call to the world.
Unique field study shows how climate change affects fire-impacted forests
During the unusually dry year of 2018, Sweden was hit by numerous forest fires. A research team led from Lund University in Sweden has investigated how climate change affects recently burned boreal forests and their ability to absorb carbon dioxide.
Molecular code stimulates pioneer cells to build blood vessels in the body
Cardiovascular diseases, including stroke and myocardial infarction, are the world's leading causes of mortality, accounting for more than 18 million deaths a year. A team of KIT researchers has now identified a new cell type in blood vessels responsible for vascular growth.
Neuronal gateway to essential molecules in learning and memory discovered on atomic scale
Learning from an experience, remembering an anecdote or changing an attitude are examples that reveal how all our behavior is the result of the exchange of chemical compounds—neurotransmitters—between neurons. Unraveling what exactly happens at the molecular level when neurons "talk" to each other at synapses is crucial for understanding the human brain in general and, in particular, for...
How interspecies competition led to a 'bizarre' pattern in our own evolutionary tree
Competition between species played a major role in the rise and fall of hominins—and produced a "bizarre" evolutionary pattern for the Homo lineage—according to a new University of Cambridge study that revises the start and end dates for many of our early ancestors.
Researchers unveil unique tidal disruption event with pronounced early optical bump
A research team from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) presented a detailed analysis of a tidal disruption event (TDE) with unique characteristics, providing new insights into the behavior of TDEs and their multiwavelength emissions. The study was published online in The Astrophysical Journal Letters.
Why a Connecticut river is named one of 'most endangered' in US
The Farmington River, "the top priority watershed in the state," according to the state's environmental agency, has been named one of America's Most Endangered Rivers by the organization American Rivers.
Real-time detection of infectious disease viruses by searching for molecular fingerprinting
A research team has engineered a "broadband nanogap gold spectroscopic sensor" using a flexible material capable of bending to create a controlled gap. With the developed technology, it is possible to rapidly test various types of materials, including infectious disease viruses, using only a single nano-spectroscopic sensor to find molecular fingerprints. The research findings have been published...
Researchers find babbling by zebra finch chicks is important step to memorizing songs
When babies learn to talk or birds learn to sing, the same principle applies: listen and then imitate. This is how the first babble becomes the first word or vocalization. Male zebra finch chicks initially memorize the song of an adult bird. Later, they refine their own vocalization until they resemble the learned song.
Tijuana River among most endangered in America due to sewage crisis
The Tijuana River, with frequent flows of sewage and chemical-tainted waters, is among America's top endangered rivers, according to a report that spotlights threats to clean water nationwide.
New study calls into question prior study results that found tumor transmission slowing in Tasmanian devils
A trio of biologists and veterinarians with CRG Barcelona, the University of Cambridge and The Barcelona Institute of Science and Technology, respectively, has found evidence contradicting results found by a prior team of researchers who claimed that they had found that tumor transmission in Tasmanian devils was slowing.
Next up is launch, as Boeing's Starliner takes trek to Cape Canaveral
Boeing's CST-100 Starliner, set to take its first humans on board during the Crew Flight Test mission next month, was transported from Boeing's Commercial Crew and Cargo Processing Facility at Kennedy Space Center in Florida on a 10-mile trip to Cape Canaveral Space Force Station.
Researchers uncover human DNA repair by nuclear metamorphosis
Researchers at the University of Toronto have discovered a DNA repair mechanism that advances understanding of how human cells stay healthy, and which could lead to new treatments for cancer and premature aging.
Buy Nothing meets GoFundMe: How a new website aims to 'revolutionize' philanthropy
An Minnesota nonprofit leader hopes to "revolutionize" charitable giving with a new platform for people to trade household items they no longer need, resulting in a donation to a nonprofit.
Improved mid-infrared nanoscopy enables 30 times clearer view of the insides of bacteria
A team at the University of Tokyo have constructed an improved mid-infrared microscope, enabling them to see the structures inside living bacteria at the nanometer scale. Mid-infrared microscopy is typically limited by its low resolution, especially when compared to other microscopy techniques. Their work has been published in Nature Photonics.
NASA's Ingenuity Mars helicopter team says goodbye—for now
The final downlink shift by the Ingenuity team was a time to reflect on a highly successful mission—and to prepare the first aircraft on another world for its new role.