- PhysOrg
- 22/5/3 18:46
Sometimes things are fine—until they're not. A boat capsizes. A bridge collapses. The stock market takes an extreme turn.
127 articles from TUESDAY 3.5.2022
Sometimes things are fine—until they're not. A boat capsizes. A bridge collapses. The stock market takes an extreme turn.
A study into the management and attitudes of key stakeholders operating in the Great Barrier Reef region has found that past and current approaches do not adequately address climate change threats to the reef or likely losses of species, habitats and processes.
University of the Sunshine Coast researchers and wildlife rescuers have joined forces as they deal with a large increase in stranded, sick, and deceased marine turtles from recent floods and the discovery of a mystery disorder that is eating away at turtle shells.
If there are so many galaxies, stars, and planets, where are all the aliens, and why haven't we heard from them? Those are the simple questions at the heart of the Fermi Paradox. In a new paper, a pair of researchers ask the next obvious question: How long will we have to survive to hear from another alien civilization?
Sometime around 14,000 years ago, the first humans crossed the Bering Strait to North America with canines, domesticated dogs they used for hunting, by their side.
New ancient DNA analysis has shed light on how the black rat, blamed for spreading Black Death, dispersed across Europe—revealing that the rodent colonized the continent on two occasions in the Roman and Medieval periods.
Plants release chemical distress signals when under attack from chewing insects. These "911 calls," as entomologist Esther Ngumbi refers to them, alert other bugs that dinner or a nice place to lay their eggs is available nearby. If predatory or parasitic insects detect the right signal, they swoop in like saviors to make a meal out of—or lay their eggs in—the bodies of the herbivore insects.
Pharma firm criticised over pricing and for keeping monopoly control over vaccine and new Paxlovid pillSee all our coronavirus coveragePfizer has made nearly $26bn (£21bn) in revenues in the first three months of the year, the bulk from its Covid-19 vaccine and new pill to treat the virus, prompting fresh accusations of pandemic profiteering.Covid vaccines have saved many lives around the world...
Tasmania has become one of the first jurisdictions in the world to reduce their carbon dioxide (CO2) emissions and increase removals to become net carbon negative, according to new research from The Australian National University (ANU) and Griffith University.
Popular Ventura, California-based clothing brand Patagonia, the city of Ojai, Ventura County and several environmental groups are suing the U.S. Forest Service in an attempt to stop a forest-thinning project on Pine Mountain in Los Padres National Forest.
Research from the University of Warwick sheds new light on a key cause of cancer formation during cell division (or mitosis), and points towards potential solutions for preventing it from occurring.
Some people experience lingering cognitive decline, with degree of impairment linked to illness severityPeople who have been hospitalised with Covid may be left with difficulties in thinking comparable in magnitude to ageing 20 years, research suggests.As the pandemic swept the world it became apparent that coronavirus could not only cause immediate health problems but also leave some people with...
In a new study, researchers used principal component analysis along with fluid dynamics simulation models to show the crucial importance of proper fit for all types of masks and how face shape influences the most ideal fit. They modeled a moderate cough jet from a mouth of an adult male wearing a cloth mask over the nose and mouth with elastic bands wrapped around the ears and calculated the...
Elevated levels of an enzyme called PHGDH in the blood of older adults could be an early warning sign of Alzheimer's disease. Researchers have consistently found high levels of PHGDH expression in brain tissue and blood samples of older adults with different stages of the disease.
A new global study of Indigenous oyster fisheries shows that oyster fisheries were hugely productive and sustainably managed on a massive scale over hundreds and even thousands of years of intensive harvest. The study's broadest finding was that long before European colonizers arrived, the Indigenous groups in these locations harvested and ate immense quantities of oysters in a manner that did not...
A new global study of Indigenous oyster fisheries co-led by Smithsonian's National Museum of Natural History anthropologist Torben Rick and Temple University anthropologist and former Smithsonian postdoctoral fellow Leslie Reeder-Myers shows that oyster fisheries were hugely productive and sustainably managed on a massive scale over hundreds and even thousands of years of intensive harvest. The...
In its updated guidance at the start of 2022, the U.S. Centers for Disease Control and Prevention said loosely woven cloth masks offer the least protection against COVID-19, and N95 and KN95 masks offer the most protection. Still, after more than two years since the pandemic began, there is not a full understanding of mask characteristics for the most optimal protection.
A trio of astrophysicists, two from Princeton, the other from New York University, has calculated estimations on how soon the universe could collapse if theories regarding dark energy as having quintessence are correct. In their paper published in Proceedings of the National Academy of Sciences, Cosmin Andrei, Anna Ijjas, and Paul Steinhardt suggest it could be as soon as 100 million years from...
Participation in organized and group activities may play a key role in preventing firearm aggression among youth who have been exposed to violence or violent behaviors, according to a new study in Developmental Psychology by researchers at the University of Michigan Institute for Firearm Injury Prevention.
Schrödinger's cat is a thought experiment designed to explain quantum superposition and quantum measurement, which are the core characteristics of quantum physics. In this experiment, the cat inside the box can be both alive and dead at the same time (quantum superposition), and its state (dead or alive) is decided the moment the box is opened (measured). Such quantum superposition and...
The remnants of a collapsed neutron star, called a pulsar, are magnetically charged and spinning anywhere from one rotation per second to hundreds of rotations per second. These celestial bodies, each 12 to 15 miles in diameter, generate light in the X-ray wavelength range. Researchers at the University of Illinois Urbana-Champaign developed a new way spacecraft can use signals from multiple...
What do gunpowder, penicillin and Teflon all have in common? They were inventions that took the world by storm, but they were all created by complete accident.
As the scientific community searches for worlds orbiting nearby stars that could potentially harbor life, new Southwest Research Institute-led research suggests that younger rocky exoplanets are more likely to support temperate, Earth-like climates.
In 2018, NASA launched the Parker Solar Probe on an unprecedented mission to study the sun up close. The mission was defined with three key scientific goals: