- ScienceDaily
- 20/7/31 21:27
A new statistical model may help scientists understand how animals make inferences about whether their surroundings are novel or haven't changed enough to be regarded a new context.
A new statistical model may help scientists understand how animals make inferences about whether their surroundings are novel or haven't changed enough to be regarded a new context.
Scientists have discovered one of the largest anomalous Hall effects (15,506 siemens per centimeter at 2 Kelvin) ever observed in the new compound, KV3Sb5. This material has a never-before-seen combination of properties: Dirac physics, frustrated magnetism, 2D exfoliatability, and chemical stability. Aside from future fundamental research studying the interplay of these ingredients, the unique...
A breakthrough in fertility science has shattered the universally accepted view of how sperm 'swim'.
A material composed of two one-atom-thick layers of carbon has grabbed the attention of physicists worldwide for its intriguing -- and potentially exploitable -- conductive properties. University of Texas at Dallas physicists are studying how the ability of twisted bilayer graphene to conduct electrical current changes in response to mid-infrared light.
Scientists have developed a new model that successfully predicted seven of the Sun's biggest flares from the last solar cycle, out of a set of nine. With more development, the model could be used to one day inform forecasts of these intense bursts of solar radiation.
When we say someone has a quick mind, it may be in part thanks to our expanded cerebellum that distinguishes human brains from those of macaque monkeys, for example. High-res imaging shows the cerebellum is 80% of the area of the cortex, indicating it has grown as human behavior and cognition evolved.
When college students learn specific techniques for managing stress and anxiety, their well-being improves across a range of measures and leads to better mental health, a new study finds.
Researchers sought to determine whether a comprehensive and personalized program, designed to mitigate risk factors of Alzheimer's disease could improve cognitive and metabolic function in individuals experiencing cognitive decline. Findings provided evidence that this approach can improve risk factor scores and stabilize cognitive function.
A team has developed a new method of synthesis for three-dimensional nanocarbons, utilizing a catalytic reaction to connect benzene rings and create an eight-membered ring structure. This represents a breakthrough in the synthesis of these nanocarbons, which are expected to be valuable next-generation functional materials.
Miniscule plants growing on desert soils can help drylands retain water and reduce erosion, researchers have found.
Researchers have been able to dial up and down creatures' lifespans by altering the activity of proteins found in roundworm cells that tell them to convert sugar into energy when their cellular energy is running low. Humans also have these proteins, offering up the intriguing possibilities for developing longevity-promoting drugs.
Why is the sea surface temperature of the northern tropics in the summer months often lower than expected? New research shows that a short-term, wind-driven wave phenomenon provides very efficient vertical mixing and cooling of the upper water layer.
Researchers have demonstrated a record setting quantum protocol for sharing a secret amongst many parties.
Tungsten atoms are seen to come together in a way that is similar to an outer space ion. The finding suggests many more types of electron sharing between atoms could exist in nature.
A new study shows other stars could have as many as seven Earth-like planets in the absence of a gas giant like Jupiter.
New research has found that paying greater attention to internal bodily sensations can increase our appreciation of our own bodies.
THURSDAY 30. JULY 2020
Researchers have for the first time identified stem cells in the region of the optic nerve, which transmits signals from the eye to the brain. The finding presents a new theory on why the most common form of glaucoma may develop and provides potential to treat a leading cause of blindness.
A new study that followed 400 households after the 2015 Nepal earthquakes provides insight into better understanding the factors that contribute to resilience and change in short-term rural natural disaster recovery.
Origami principles can unlock the potential of the smallest robots, enhancing speed, agility and control in machines no more than a centimeter in size.
A new study shows how upcoming technological advances could make wind energy a hot commodity in the Sunshine State.
A new review article casts light on organelles, the internal compartments in bacterial cells that house and support functions essential for their survival and growth.
A new microchip that enables continuous monitoring of pH and chlorine levels in swimming pools will vastly improve water safety as new research shows it can deliver consistent and accurate pool chemistry for reliable pool management.
Biologists have achieved the first gene knockout in a cephalopod using the squid Doryteuthis pealeii, an exceptionally important research organism in biology for nearly a century. The team used CRISPR-Cas9 genome editing to knock out a pigmentation gene in squid embryos, which eliminated pigmentation in the eye and in skin cells (chromatophores) with high efficiency.
By modeling experimentally measured characteristics of cells infected with hepatitis C in the lab, researchers found that one virus strain was roughly three times more likely to use copied genetic code to create new viruses compared to another, which instead tended to keep more copies inside an infected cell to accelerate replication. Understanding specific strategies adopted by viruses through...
Researchers examined the plant life in the China's Hengduan Mountains, the Himalaya Mountains, and the Qinghai-Tibet Plateau. Using DNA to build family trees of species, they learned that the diversity of plants in that region today can be traced back to newly-formed mountain ranges 30 million years ago, and monsoons that came later. It's a concrete example of how climatic and environmental...
Researchers have discovered that children younger than 5 years with mild to moderate COVID-19 have much higher levels of genetic material for the virus in the nose compared to older children and adults. The findings point to the possibility that the youngest children transmit the virus as much as other age groups.
Of the CRISPR-Cas9 tools created to date, base editors have gotten lots of attention because of their seemingly simple editing: they neatly replace one nucleic acid with another, in many cases all that should be needed to fix a genetic disease. Scientists have now determined the structure of the latest base editor as it swaps out nucleic acids, showing why it can go off target but also how it can...
Researchers have investigated the phenomenon of sexual parasitism in deep-sea anglerfish. The scientists show that this very rare mode of reproduction is associated with the loss of adaptive immunity. In the course of evolution, however, the animals have reorganized their immune systems and only survive with the help of their innate immunity.
Researchers have discovered that common chemical reactions accelerate Brownian diffusion by sending long-range ripples into the surrounding solvent.
NASA's Mars 2020 Perseverance rover mission is on its way to the Red Planet to search for signs of ancient life and collect samples to send back to Earth.
Scientists have demonstrated for the first time that interlayer coupling in a van der Waals (vdW) material can be largely modulated by a protonic gate, 'injecting' protons into the device. The same weak interlayer forces that make vdW materials so easy to separate (eg, the famous Scotch-tape method of isolating graphene) also limit these materials' applications in future technology. Stronger...
The number of adults in the United States who suffer from major depressive episodes at some point in their life is far higher than previously believed, a new study finds.
The first landmark study using next-generation technology to comprehensively examine contaminants in oysters in Myanmar reveals alarming findings: the widespread presence of human bacterial pathogens and human-derived microdebris materials, including plastics, kerosene, paint, talc and milk supplement powders.
Researchers have advanced a new way to see into the ocean's depths, establishing an approach to detect algae and measure key properties using light. A new article reports using a laser-based tool, lidar, to collect these measurements far deeper than has been typically possible using satellites.
Forty percent of dementia cases could be prevented or delayed by targeting 12 risk factors throughout life, experts say.
Researchers have reported a new form of electronics known as 'drawn-on-skin electronics,' allowing multifunctional sensors and circuits to be drawn on the skin with an ink pen.
Researchers have determineD the crystal structure of an exopolysaccharide receptor. The results give insight into how plants and microbes communicate, and this knowledge can hopefully be used for more sustainable agriculture where microbes play an important role.
Researchers develop a safer and more efficient way to produce dicarboxylic acid. Using an iridium catalyst bound to a bipyridonate ligand, researchers were able to synthesize dicarboxylic acids from aqueous diols, with the added benefit of generating hydrogen as a byproduct.
Researchers have revealed the multiple, intertwined cell death systems that prevent the spread of the 'intracellular' bacterium Salmonella, an important cause of typhoid fever which kills more than 100,000 people annually.
New research is the first in the world to quantify the extent to which biologically important artificial light is prevalent on the seafloor and could, in turn, be having a detrimental effect on marine species.