Tech
Quantum time crystals are systems characterised by spontaneously emerging periodic order in the time domain. In a regular crystal, atoms form periodic order in space, while in a time crystal, a periodic process in time (like oscillation, rotation etc.) spontaneously emerges.
While originally a phase of broken time translation symmetry was a just theoretical exercise, a few practical realisations of time crystals have been reported, such as in previous Aalto research on time crystals.
HOUSTON - (Aug. 17, 2020) - Carbon nanotube fibers made at Rice University are now stronger than Kevlar and are inching up on the conductivity of copper.
The Rice lab of chemical and biomolecular engineer Matteo Pasquali reported in Carbon it has developed its strongest and most conductive fibers yet, made of long carbon nanotubes through a wet spinning process.
FAYETTEVILLE, Ark. - Ultra-low voltage electricity is effective at killing bacteria because it causes membranes that surround bacteria to leak, according to a new study by University of Arkansas researchers. The research advances work to fight drug-resistant bacteria.
Using E. coli bacteria, the team demonstrated that ultra-low voltage applied for 30 minutes created holes in the cell's membrane that allowed leakage of small molecules, ions and proteins both in and out of the cell, killing the bacterium.
NASA's Terra satellite used infrared light to identify strongest storms and coldest cloud top temperatures and found them surrounding a developing eyewall around Genevieve as it was strengthening into a hurricane.
Genevieve formed on Sunday by 11 a.m. EDT (1500 UTC) as Tropical Depression 12E. Six hours later, by 5 p.m. EDT, it had strengthened into a tropical storm and was renamed Tropical Storm Genevieve. The storm continued to intensify rapidly and by 11 a.m. EDT on Monday, Aug. 17, it strengthened to a hurricane.
Infrared Data Reveals Powerful Storms
Post-Tropical Storm Fausto faded fast in the Eastern Pacific Ocean. NASA's Terra satellite provided an infrared look at the storm, which showed no areas of heavy rainfall, and the storm was classified as a remnant low-pressure area.
In laboratory experiments, a chemical compound found in the shell of the cashew nut promotes the repair of myelin, a team from Vanderbilt University Medical Center reports today in the Proceedings of the National Academy of Sciences.
Myelin is a protective sheath surrounding nerves. Damage to this covering -- demyelination -- is a hallmark of multiple sclerosis and related diseases of the central nervous system.
LAWRENCE, KANSAS -- In a new study, Monarch Watch Director Chip Taylor and colleagues have shown that speculation regarding the declining monarch population, despite having received much attention, is unsupported.
Researchers at Harvard Medical School, Massachusetts Institute of Technology and Northwestern University have identified a subtype of autism arising from a cluster of genes that regulate cholesterol metabolism and brain development.
The researchers say their findings, published Aug. 10 in Nature Medicine, can inform both the design of precision-targeted therapies for this specific form of autism and enhance screening efforts to diagnose autism earlier.
WASHINGTON, Aug. 17, 2020 -- Milk chocolate is a consumer favorite worldwide, prized for its sweet flavor and creamy texture. This confection can be found in all types of treats, but it isn't exactly health food. In contrast, dark chocolate has high levels of phenolic compounds, which can provide antioxidant health benefits, but it is also a harder, more bitter chocolate. Today, researchers report a new way to combine milk chocolate with waste peanut skins and other wastes to boost its antioxidant properties.
WASHINGTON, Aug. 17, 2020 -- Like electronic devices, biological cells send and receive messages, but they communicate through very different mechanisms. Now, scientists report progress on tiny communication networks that overcome this language barrier, allowing electronics to eavesdrop on cells and alter their behavior -- and vice versa. These systems could enable applications including a wearable device that could diagnose and treat a bacterial infection or a capsule that could be swallowed to track blood sugar and make insulin when needed.
WASHINGTON, Aug. 17, 2020 -- Oceans cover almost three-quarters of the globe, yet little is known about how gases and aerosols made by ocean microbes affect weather and climate, or how human-produced pollution could influence this process. Now, scientists report they've used an "ocean-in-a-lab" to show that air pollution can change the makeup of gases and aerosols that sea spray releases into the atmosphere and, in turn, potentially alter weather patterns.
WASHINGTON, Aug. 17, 2020 -- Sour beer, the tart and tangy outcome of a brewing process that's been used in Europe for centuries, has recently surged in popularity in the U.S. Today, scientists report progress on a study of how acids and other flavor components evolve while the beverage ages. Their aim is to help brewers understand and gain more control over sour beer's taste.
WASHINGTON, Aug. 17, 2020 -- Oral bacteria are ready to spring into action the moment a dental hygienist finishes scraping plaque off a patient's teeth. Eating sugar or other carbohydrates causes the bacteria to quickly rebuild this tough and sticky biofilm and to produce acids that corrode tooth enamel, leading to cavities. Scientists now report a treatment that could someday stop plaque and cavities from forming in the first place, using a new type of cerium nanoparticle formulation that would be applied to teeth at the dentist's office.
MADISON, Wis. -- University of Wisconsin-Madison scientists have discovered that a majority of back-pain patients they tested who were taking opioid painkillers produced anti-opioid antibodies.
Crops grow dense canopies that consist of several layers of leaves--the upper layers with younger sun leaves and the lower layers with older shaded leaves that may have difficulty intercepting sunlight trickling down from the top layers.