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1,154 articles from ScienceDaily
Fast, portable test can diagnose COVID-19 and track variants
- ScienceDaily
- 21/3/31 23:37
Clinicians using a new viral screening test can not only diagnose COVID-19 in a matter of minutes with a portable, pocket-sized machine, but can also simultaneously test for other viruses -- like influenza -- that might be mistaken for the coronavirus. At the same time, they can sequence the virus, providing valuable information on the spread of COVID-19 mutations and variants.
COVID-19 antibody tests, even rapid finger pricks, are effective, new study finds
- ScienceDaily
- 21/3/31 23:37
A new study finds that antibody tests are able to predict prior COVID-19 infection, even for people with mild symptoms. Researchers also found that low-cost rapid screening methods, including finger prick tests, detect infection with nearly the same precision as higher-complexity lab tests.
Cervical cancer testing tech could replace pap smears, save lives
- ScienceDaily
- 21/3/31 23:37
Emerging technologies can screen for cervical cancer better than Pap smears and, if widely used, could save lives in areas where access to health care may be limited. In Biophysics Reviews, scientists at Massachusetts General Hospital write advances in nanotechnology and computer learning are among the technologies helping develop HPV screening that take the guesswork out of the precancer tests....
Even without a brain, metal-eating robots can search for food
- ScienceDaily
- 21/3/31 23:37
This 'metal-eating' robot can follow a metal path without using a computer or needing a battery. By wiring the power-supplying units to the wheels on the opposite side, the robot autonomously navigates towards aluminum surfaces and away from hazards that block its energy source.
Mothers bear the cost of the pandemic shift to remote work
- ScienceDaily
- 21/3/31 23:37
At the same time the pandemic was expanding the number of people working remotely, children nationwide began attending school virtually. The result? An increase in domestic work that fell disproportionately on the shoulders of mothers, according to a new study by sociologists.
Groundwater discharge affects water quality in coastal waters
- ScienceDaily
- 21/3/31 21:37
Water quality management in the ocean often targets visible pollution sources such as sewage, rivers or ships. A new global study reveals that invisible groundwater discharges may be just as important driving nitrogen into coastal waters.
First images of freshwater plumes at sea
- ScienceDaily
- 21/3/31 21:37
Researchers demonstrated a new method to detect freshwater plumes between the seafloor and ocean surface.
Female monkeys use males as 'hired guns' for defense against predators
- ScienceDaily
- 21/3/31 20:31
Researchers found that female putty-nosed monkeys (Cercopithecus nictitans) use males as 'hired guns' to defend from predators such as leopards.
Heat conduction record with tantalum nitride
- ScienceDaily
- 21/3/31 20:31
In order to remove heat, for example from computer chips, materials are needed which are extremely good at conducting heat. Scientists in Vienna have analyzed materials on an atomic level and found an excellent new heat conductor: theta-phase tantalum nitride.
Newly discovered node in brain could expand understanding of dysfunctional social behavior
- ScienceDaily
- 21/3/31 20:31
A group of scientists have discovered a node in the brains of male mice that modulates the sounds they make in social situations. This discovery could help identify similar locations in the human brain, and potentially lead to a better understanding of social disorders.
Cone snails use sexual enticements to lure prey out of hiding
- ScienceDaily
- 21/3/31 20:31
Some cone snails use a previously undetected set of small molecules that mimic the effects of worm pheromones to drive marine worms into a sexual frenzy, making it easier to lure them out of their hiding places so the snails can gobble them up.
'Agricomb' measures multiple gas emissions from ... cows
- ScienceDaily
- 21/3/31 20:31
Researchers used NIST's agricomb to simultaneously measure emissions of methane, ammonia, carbon dioxide and water vapor from the atmosphere around a beef cattle feedlot in Kansas.
Scientists create next gen living robots
- ScienceDaily
- 21/3/31 20:30
Scientists up to create the next version of Xenobots - tiny biological robots that self-assemble, carry out tasks, and can repair themselves. Now they can move faster, and record information.
'Sweat sticker' diagnoses cystic fibrosis on the skin in real time
- ScienceDaily
- 21/3/31 20:30
A research team has developed a novel skin-mounted sticker that absorbs sweat and then changes color to provide an accurate, easy-to-read diagnosis of cystic fibrosis within minutes.
How comorbidities increase risks for COVID patients
- ScienceDaily
- 21/3/31 20:30
Comorbidities such as heart disease, respiratory disease, renal disease and cancer lead to an increased risk of death from COVID-19, according to new research.
Invasive species costing over 1. 3 trillion over 4 decades
- ScienceDaily
- 21/3/31 20:30
Scientists have just released the most comprehensive estimate to date of the financial toll of invasive species: nearly $1.3 trillion over four decades.
Ancient meteoritic impact over Antarctica 430,000 years ago
- ScienceDaily
- 21/3/31 20:30
A research team of international space scientists has found new evidence of a low-altitude meteoritic touchdown event reaching the Antarctic ice sheet 430,000 years ago.
Genetic and cellular mechanisms of Crohn's disease
- ScienceDaily
- 21/3/31 20:30
New study identifies a novel approach for tailored treatment that could be more effective for patients with the chronic disease.
Insight into the evolution of bones
- ScienceDaily
- 21/3/31 20:30
Palaeontologists have now analyzed the bone structures of 400 million-year-old fossils of marine life at unprecedentedly high resolution and in 3D. To be able to view these structures, tomography experts examined the samples under the focused ion beam of a scanning electron microscope to calculate 3D images from the data, achieving resolutions in the nanometer range using technology that was...
Deep diamonds contain evidence of deep-Earth recycling processes
- ScienceDaily
- 21/3/31 20:30
Diamonds that formed deep in the Earth's mantle contain evidence of chemical reactions that occurred on the seafloor. Probing these gems can help geoscientists understand how material is exchanged between the planet's surface and its depths.
450-million-year-old sea creatures had a leg up on breathing
- ScienceDaily
- 21/3/31 20:30
A new study has found the first evidence of sophisticated breathing organs in 450-million-year-old sea creatures. Contrary to previous thought, trilobites were leg breathers, with structures resembling gills hanging off their thighs.
Regenerating hair follicle stem cells
- ScienceDaily
- 21/3/31 20:30
Researchers have identified the biological mechanism of how chronic stress leads to hair loss. They found that the stress hormone corticosterone causes hair follicle stem cells to stay in an extended resting phase, without regenerating tissue. The stress signal was first received by dermal cells surrounding the hair follicle, preventing them from releasing Gas6, a molecule that activates stem...
Ridesharing intensifies urban road congestion
- ScienceDaily
- 21/3/31 20:30
A study to assess how ridesharing impacts urban mobility in the United States, found that ridesharing increased both intensity and duration of road congestion. Ridesharing substituted for public transit ridership by almost 9% and there was no significant change in private vehicle ownership.
Quantum material's subtle spin behavior proves theoretical predictions
- ScienceDaily
- 21/3/31 19:09
Using complementary computing calculations and neutron scattering techniques, researchers discovered the existence of an elusive type of spin dynamics in a quantum mechanical system.
Attention and working memory: Two sides of the same neural coin?
- ScienceDaily
- 21/3/31 19:09
Neuroscientists found that attention and working memory share the same neural mechanisms. Importantly, their work also reveals how neural representations of memories are transformed as they direct behavior.