- ScienceDaily
- 21/10/8 22:05
Researchers have presented evidence that a Middle Bronze Age city called Tall el-Hammam, located in the Jordan Valley northeast of the Dead Sea, was destroyed by a cosmic airburst.
Researchers have presented evidence that a Middle Bronze Age city called Tall el-Hammam, located in the Jordan Valley northeast of the Dead Sea, was destroyed by a cosmic airburst.
A new study speaks to the importance of public awareness programs in keeping residents -- and emergency management offices -- informed about rare but potentially lethal natural events in their area.
Since the Perseverance rover landed in Jezero crater on Mars in February, the rover and its team of scientists back on Earth have been hard at work exploring the floor of the crater that once held an ancient lake. Perseverance and the Mars 2020 mission are looking for signs of ancient life on Mars and preparing a returnable cache of samples for later analyses on Earth.
New research has uncovered a novel way to combine two different states of matter. For one of the first times, topological photons -- light -- has been combined with lattice vibrations, also known as phonons, to manipulate their propagation in a robust and controllable way.
Researchers have devised and tested a new, highly sensitive method of detecting and counting defects in transistors -- a matter of urgent concern to the semiconductor industry as it develops new materials for next-generation devices.
Researchers have discovered that the more severely infected with COVID-19 a mother is, the more likely she is to experience preterm birth.
Researchers have developed a versatile composite fabric that can deactivate both biological threats, such as the novel coronavirus that causes COVID-19, and chemical threats, such as those used in chemical warfare. A material that is effective against both classes of threats is rare. The new material also is reusable. It can be restored to its original state after the fabric has been exposed to...
Engineers have developed a new type of wearable with several unprecedented benefits. Not only are the devices custom 3D-printed based on body scans of wearers, but they can operate continuously using a combination of wireless power transfer and compact energy storage.
The full magnitude of the impact of smoke from seasonal fires in Central Africa - and in particular, the potential climate warming from the absorption by the black carbon component of the aerosol - is underestimated by some climate models over the South-East Atlantic, new research has shown.
As the popularity of fitness trackers has increased, so have the opportunities to use such devices to not only track fitness goals but also increase the motivation to meet those goals. Researchers are using control systems engineering tools to tailor motivational messages sent to individual device users.
Over time, concrete cracks and crumbles. Well, most concrete cracks and crumbles. Structures built in ancient Rome are still standing, exhibiting remarkable durability despite conditions that would devastate modern concrete. One of these structures is the large cylindrical tomb of first-century noblewoman Caecilia Metella. New research shows that the quality of the concrete of her tomb may exceed...
Researchers have been studying seed dispersal to understand how chemicals impact interactions between fruit and the animals that eat them.
The greater number of deaths amongst those with mental health conditions and intellectual disabilities has been amplified during the COVID-19 pandemic, a study based on more than 160,000 patients has revealed.
Marine heatwaves, driven by climate change, are becoming more frequent and intense worldwide. Although we know that heatwaves kill marine organisms and have devastating effects on ecosystems, there is currently no way to predict these effects or help ecosystems adapt.
A team of scientists and doctors has developed a capability to detect airborne SARS-CoV-2 RNA -- the nucleic acid coding for the virus that causes COVID-19 -- indoors through air sampling. When trialed in two inpatient wards of a major Singaporean hospital caring for active COVID-19 patients the air surveillance approach produced a higher detection rate of environmental SARS-CoV-2 RNA (72%)...
Researchers have identified a subpopulation of mesenchymal stem cells in the bone marrow that express the marker CD73. These cells have a higher potential for proliferation and differentiation, and play a significant role in bone healing, migrating to the site of a fracture and developing into cartilage and bone cells as part of the repair process. These cells have potential for regenerative...
Researchers propose quantum circuit black hole lasers to explore Hawking radiation.
Our DNA is very similar to that of the chimpanzee, which in evolutionary terms is our closest living relative. Stem cell researchers have now found a previously overlooked part of our DNA, so-called non-coded DNA, that appears to contribute to a difference which, despite all our similarities, may explain why our brains work differently.
The quantum behavior of atomic vibrations excited in a crystal using light pulses has much to do with the polarization of the pulses, say materials scientists. The findings from their latest study offer a new control parameter for the manipulation of coherently excited vibrations in solid materials at the quantum level.
Adolescents who had received a mental health disorder diagnosis were often excluded from the labor market and education as young adults. This particularly applied to adolescents who had been diagnosed with an autism spectrum disorder or psychosis. The results were found out in a birth cohort study of people born in Finland in 1987.
A team researchers looked at the Pacific Northwest portion of the Dungeness crab fishery, which spans from Alaska down to Southern California. They determined which life stages are most vulnerable, and to which stressors.
Neuroscientist shave discovered a novel, non-invasive imaging-based method to investigate the visual sensory thalamus, an important structure of the human brain and point of origin of visual difficulties in diseases such as dyslexia and glaucoma. The new method could provide an in-depth understanding of visual sensory processing in both health and disease in the near future.
A study leverages concepts from physics to model how campaign strategies influence the opinions of an electorate in a two-party system.
Researchers have developed a continuous seismic monitoring system that could monitor multiple geothermal or carbon storage reservoirs over a relatively large area in real time. A small seismic source generates repeated 'chirps,' which can be detected by fiber-optic cables within a radius of 80 km from the source. Field experiments showed that temporal changes in monitored reservoirs were captured...
A team of researchers has spent years working to develop an effective treatment for stroke that focuses on the use of a peptidase known as neurolysin. The team is now evaluating the potential of neurolysin as a therapeutic target for stroke by seeking to identify small molecules capable of enhancing its activity and catalytic efficiency.