Strange metals challenge the 60-year-old theory that electric current consists of a flow of discrete charges. Strange metals show electricity carried by a quantum fluid rather than discrete electrons, challenging the long-standing Fermi liquid theory and prompting new research into electrical tra
Exceptional points (EPs) are unique types of energy-level degeneracies that occur in non-Hermitian systems. Since their existence was first proposed more than a century ago, physicists have only been able to experimentally observe two types of EPs, both of which were found to give rise to exotic phases of matter in various materials, including Dirac and Weyl semimetals.
Building on recent theoretical studies, researchers at the University of Science and Technology of China recently set out to experimentally observe a new class of EPs, known as Dirac EPs. Their paper, published in Physical Review Letters, could open new exciting possibilities for the study of non-Hermitian dynamics and for the development of protocols to reliably control quantum systems.
“Our inspiration stemmed from a prior theoretical study that proposed a type of exceptional point (EP) termed Dirac EPs,” Xing Rong, senior author of the paper, told Phys.org. “We realized that this novel type of EP is distinct from all experimentally observed EPs over the past half-century. Our work aimed to transform this theoretical prediction into experimental reality.”
This cross-national comparison of health care systems assesses U.S. health spending, outcomes, status, and service use relative to 12 other high-income countries.
NIH trial shows new form of TIL therapy effective against colon, rectum, pancreas, and bile duct tumors.
Combining two different kinds of signals could help engineers build prosthetic limbs that better reproduce natural movements, according to a new study from the University of California, Davis. The work, published April 10 in PLOS One, shows that a combination of electromyography and force myography is more accurate at predicting hand movements than either method by itself.
In a study published in Science Advances, a research team led by Prof. Liu Chengbo from the Shenzhen Institutes of Advanced Technology (SIAT) of the Chinese Academy of Sciences developed a 1.7-gram head-mounted microscope. This innovative device can simultaneously capture neural activity and cerebral hemodynamics in freely moving mice, providing a novel tool for exploring neurovascular coupling (NVC) in the brain and studying neurological disorders.
NVC represents the close temporal and regional relationship between neural activity and cerebral blood flow and oxygenation. When neural activity is initiated in a specific brain region, the metabolic demand within that region increases, leading to enhanced blood flow to supply greater amounts of oxygen and glucose, thus meeting the elevated metabolic needs of neurons. Conversely, if pathological changes hinder cerebral vessels’ capacity to provide sufficient oxygen and energy, the functional activity of the corresponding brain region will be significantly affected.
Conventional NVC imaging techniques face challenges in achieving simultaneous in vivo high spatiotemporal resolution of neuronal activity and cerebral blood flow. This makes it difficult to accurately capture the dynamic relationship between neural activity and local hemodynamic changes. In addition, most existing studies use head-fixed setups which do not reflect true neurovascular coupling during natural animal behaviors.
A research team has developed an innovative biomimetic dual-mode magnetic resonance imaging (MRI) nanoprobe for detecting early-stage liver fibrosis in non-alcoholic fatty liver disease (NAFLD).
The work, using the Steady High Magnetic Field Facility (SHMFF), was recently published in Advanced Science. The team was led by Prof. Wang Junfeng at the High Magnetic Field Laboratory, the Hefei Institutes of Physical Science of the Chinese Academy of Sciences.
NAFLD is a growing global health concern with even higher rates among individuals with obesity or type 2 diabetes. Detecting liver fibrosis early, before it becomes irreversible, is crucial for timely intervention and treatment. While MRI is a promising non-invasive tool for identifying liver fibrosis, traditional imaging techniques often lack the sensitivity to catch early-stage changes. Conventional contrast agents either face safety concerns or fail to target fibrotic tissues specifically.
The root-associated bacterium Exiguobacterium R2567 regulates tiller number by producing cyclo(Leu-Pro), which activates the rice strigolactone signaling pathway.
Mass General Brigham researchers found that interactions between immune and brain cells drive fear responses, but treatment with psychedelics like MDMA and psilocybin may reverse these effects.
The new study suggests that fear and the immune system are connected in previously unknown ways. The researchers found that the immune system can influence stress and fear behaviors by changing how brain cells communicate.
The investigators further showed that psychedelic treatments could target these neuroimmune interactions and reduce stress-induced fear in preclinical models and found similar results in human tissue samples. Results are published in Nature.
Join us on Patreon! https://www.patreon.com/MichaelLustgartenPhD
Discount Links/Affiliates:
Blood testing (where I get the majority of my labs): https://www.ultalabtests.com/partners/michaellustgarten.
At-Home Metabolomics: https://www.iollo.com?ref=michael-lustgarten.
Use Code: CONQUERAGING At Checkout.
Clearly Filtered Water Filter: https://get.aspr.app/SHoPY
Epigenetic, Telomere Testing: https://trudiagnostic.com/?irclickid=U-s3Ii2r7xyIU-LSYLyQdQ6…M0&irgwc=1
Use Code: CONQUERAGING
NAD+ Quantification: https://www.jinfiniti.com/intracellular-nad-test/
