Recent study reveals astrocytes modulate balance of inhibition/excitation in neural networks controlling decision-making. Astrocyte activation improves cognitive performance and regulates gamma oscillations involved in perception, working memory, and other cognitive functions.
A team of researchers has analyzed data to infer the nature of compact object orbiting within LS 5039, the brightest gamma-ray binary system in the Galaxy. The team suggests that particle acceleration process is caused by interactions between dense stellar winds and ultra-strong magnetic fields of a rotating magnetar.
Scientists have developed a new method for analyzing the structure of skin using T-rays, which can help diagnose and treat conditions like eczema and psoriasis. The technique measures the refractive index of skin to determine hydration levels, providing valuable information on skin thickness and properties.
Researchers found that dynamic interplay of brain wave frequencies, rather than dedicated circuitry, governs the brain's knack for highlighting surprising and downplaying predictable stimuli. This regulatory system has a key role in predictive coding, which is disrupted in autism spectrum disorders.
Astronomers detected near-infrared emission 10 times brighter than predicted, challenging conventional theories of short gamma-ray bursts. The observations suggest the possibility of a massive magnetar being formed after the merger of two neutron stars.
Researchers spot potential magnetar birth from neutron star merger, which resulted in a brilliant kilonova, the brightest ever seen. The team's findings challenge conventional thinking and offer insights into the physics behind extreme energy explosions.
Researchers found that combining Th1 cytokines IFN-gamma and TNF-alpha with the small molecule Akt antagonist MK-2206 maximizes indicators of apoptotic cell death in breast cancer cells. The study also suggests a combined therapy approach for Akt-targeting drugs that incorporates recombinant Interferon-gamma.
Researchers found X-rays continuing to radiate from the collision long after models predicted they would stop. The study suggests possible explanations for the long-lived X-ray emissions, including a new feature of the collision's afterglow or the presence of a remnant neutron star.
Researchers have successfully measured the lowest known nuclear-excited state in thorium-229, a crucial step towards constructing a nuclear clock. The measurement was made using an extremely accurate detector that detected tiny temperature increases due to energy released during de-excitation of the atomic nucleus.
Tropical Storm Gamma brought heavy rainfall to Yucatan Peninsula, making landfall near Tulum on Oct. 3. The storm was closely monitored due to its close proximity to hurricane strength at landfall.
A team of researchers has precisely recorded the dependence of resonant magnetic scattering intensity on x-ray intensity using a ferromagnetic domain sample. They found that the loss in scattered x-ray intensity is due to transient demagnetization, not stimulated emission. This clarification has important ramifications for future singl...
A new UCLA study identifies two key drivers of the immune system's attack on cancer cells: T cell infiltration and interferon-gamma signaling. The research found that blocking immune checkpoints amplifies interferon-gamma signaling, leading to enhanced antitumor immune responses.
The study found that small dark matter haloes have a similar internal structure to larger ones, with smaller clumps orbiting in their outer regions. This could help identify these small objects individually or collectively through future gamma-ray observatories.
A study found that reef manta rays live and travel long-term between two UNESCO World Heritage areas in Australia, visiting protected sites for over a decade. The research uses satellite tags and photographs to fill gaps in migratory patterns for this large species of rays.
Researchers have eliminated dark matter candidates as the origin of excess gamma rays detected in the Milky Way's galaxy center through extensive modeling exercises. The study puts strongest constraints yet on dark matter properties, ruling out weakly interacting massive particles up to very high-mass particles.
Astronomers studied the galaxy's radio structure using VLBA, revealing a striking TIE fighter shape at 6.6 GHz. The team observed two periods of activity in TXS 0128+554, suggesting a lull in activity created a gap in the radio emission.
The Very Long Baseline Array revealed young radio-emitting jets that began 80 years ago and stopped, then resumed about 10 years ago. The bright core houses a supermassive black hole about one million times the mass of the Sun.
A massive spinning black hole powers a plasma jet through magnetic reconnection, releasing energy in 'mini-jets' that produce high-energy gamma radiation. This phenomenon explains how the energy reaches the jet's core from the black hole and ultimately originates from its rotation.
Scientists have detected a mysterious gamma-ray heartbeat from a cosmic gas cloud in the constellation Aquila, powered by a neighbouring precessing black hole. The research team analysed over ten years of data from NASA's Fermi gamma-ray space telescope, revealing a consistent period between the cloud's emission and the black hole's jets.
Researchers tracked seven whitespotted eagle rays for 119.6 hours, revealing their fine-scale movement patterns and habitat use. The study found that rays prefer shallower waters during the night and faster movement in ocean habitats.
The 'Gamma Factory' initiative aims to develop a high-intensity gamma rays source using accelerated ion beams and laser beams. This will enable detailed investigations into atomic nuclei and facilitate breakthroughs in spectroscopy.
Researchers have created an optical switch that can direct high-frequency gamma radiation by switching the acoustic field. This effect demonstrates controlled transparency of a resonant medium for gamma radiation, which may be useful for controlling generated radiation in modern synchrotron sources and X-ray lasers.
Researchers at Tokyo University of Agriculture and Technology develop a novel collimator using a specially designed metasurface, enabling efficient manipulation of terahertz waves. This breakthrough has significant implications for next-generation wireless communications, security systems, biomedicine, and cultural heritage science.
A Northwestern University-led team discovered the most distant short gamma ray burst (SGRB) with its afterglow measured, located 10 billion light-years away and 3.8 billion years after the Big Bang. The study reveals that neutron stars in a 'teenage' universe may have merged relatively quickly.
The study confirms that the speed of light is constant in vacuum, as predicted by Einstein's general relativity theory. No energy-dependent time delay was detected in the arrival times of gamma rays from a high-energy gamma-ray burst, supporting GR. Strong constraints on the quantum gravity energy scale were also set.
Researchers at Penn State suggest that supermassive black hole coronae could be the source of high-energy cosmic neutrinos, exceeding expectations. The new model predicts electromagnetic counterparts in soft gamma-rays, with next-generation detectors poised to explore this possibility.
Researchers discovered that quasar gamma-ray emission extends over thousands of light-years along plasma jets, contradicting previous assumptions. This finding reveals that particle acceleration occurs not only near the black hole but also along the entire jet length.
Researchers have successfully detected gamma rays from the Crab Nebula using a next-generation telescope, shedding new light on supernovae and dark matter. The prototype Schwarzschild-Couder Telescope promises to enhance imaging detail over larger field of view across the sky.
A new model explains the simultaneous origins of Fermi bubbles and galactic center biconical X-ray structure, with energy injection from a pair of jets emanating from Sgr A* five million years ago. The study suggests the total energy injected is comparable to 20,000 supernovae.
Researchers used chest X-rays to identify patients at higher risk of severe illness from COVID-19. A unique scoring system evaluated lung patterns, predicting outcomes and guiding treatment for high-risk patients.
Researchers at the University of Bonn discovered that gamma-secretase, a protein shredder, indirectly regulates fat metabolism in brain cells. This process can lead to adiposis, disrupting cellular functions, while also having potential benefits against cancer by inhibiting tumor cell division.
A new study has identified a molecular pathway responsible for the progression and spread of triple-negative breast cancer (TNBC). By blocking the signaling pathway, researchers found that tumors grew and spread more slowly. The findings suggest that patients with low ELF5 protein levels should be given interferon-gamma signaling-block...
Researchers confirm Lorentz Invariance holds true at record-breaking high-energy gamma rays, extending the range where relativity's constant speed of light is valid. The High Altitude Water Cherenkov Observatory detected gamma rays from distant galactic sources, providing powerful proof of Einstein's theory.
Scientists from North Carolina State University have developed a new technique that utilizes residual gamma radiation signatures to detect and locate radioactive materials, such as weapons-grade plutonium. The method relies on the unique properties of silicates in building materials like bricks.
A study found that reef manta rays in New Caledonia are diving much deeper than previously recorded, with maximum depths exceeding 672 meters, and most dives occurring at night.
Researchers have found the first direct correlation between dark matter and gamma rays in the universe. The study used gamma ray data from Fermi Large Area Telescope and mapped it with weak gravitational lensing, providing insights into the nature of dark matter and its potential connection to gamma ray emissions.
Researchers have developed an edible coating using cranberry juice and citrus extract that makes noroviruses more sensitive to gamma irradiation, reducing treatment time by half while preserving food quality. This natural antimicrobial method can prevent cell breakdown and discolouration.
Scientists using ALMA detected chemical signatures of acetonitrile and its rare isotopomer in Titan's stratosphere, indicating the presence of galactic cosmic rays. The findings suggest a universal process that could influence atmospheres on other solar system bodies.
A newly identified compound, C1, is a covalent gamma-secretase inhibitor that blocks the production of amyloids by inhibiting the enzyme's activity on the amyloid precursor protein. This approach avoids traditional enzyme inhibitors' severe side effects and shows promise for treating Alzheimer's disease.
Engineers have developed a new system that combines fast neutrons and gamma rays to detect corrosion in oil and gas pipelines. The technology mimics the natural world's use of ultrasound waves by bats to detect objects, enabling real-time detection of pipeline flaws.
A new study by Newcastle University scientists found that both UV and non-UV light from sunlight can damage the skin's cells, with visible and infrared rays causing greater harm at deeper levels. The research aims to improve sunscreen protection strategies against all three types of light.
An international team of scientists developed an optic system to visualize protein crystals in X-rays and determine their position. This improvement significantly reduces analysis time and preserves the integrity of biological molecules.
Researchers have identified nine galactic sources of super-high-energy gamma rays with energies over 56 trillion electron volts, three of which emit gamma rays extending to 100 TeV and beyond. These discoveries help explain where high-energy particles originate and how they are accelerated.
Scientists with the HAWC Collaboration have detected gamma-ray emissions at unprecedented energy levels above 56 TeV. The findings suggest the presence of Galactic accelerators, known as PeVatrons, which could be a new area of research for pulsars and supernova remnants.
Researchers discovered a correlation between the unresolved gamma-ray background and matter distribution in the distant universe, suggesting that dark matter could be a source of the faint cosmic glow. The study used data from the Dark Energy Survey and Fermi Gamma-ray Space Telescope to analyze the correlation.
Researchers have discovered that tidal effects from a close binary companion can cause a star to spin fast enough to launch material into space, forming a gamma-ray burst. This phenomenon is necessary for creating the most luminous events in the universe, observable from Earth when their jet of material is pointed directly at us.
A breakthrough study published in Science has deciphered a new way that gamma-delta T cells detect infections and cancers. The research team identified a key molecule, butyrophilin 2A1, which is present on the surface of these immune cells and binds to specific molecules on cancer cells.
A study on pectoral fin rays of ancient fish species uncovers key structural changes enabling fins to give rise to limbs. The transformation is marked by the appearance of digits, reducing dermal fin rays and fin webs.
Scientists have discovered a new population of gamma delta T cells that recognize an MHC-like molecule called MR1. Using advanced imaging techniques, researchers found that these T cells bind to MR1 from underneath the molecule, rather than sitting atop it as previously thought.
The discovery of a faint gamma-ray 'halo' around Geminga, a nearby pulsar, may hold the solution to a long-standing mystery about the amount of antimatter in our neighborhood. The halo's size and energy suggest that it could be responsible for as much as 20% of high-energy positrons detected by NASA's Alpha Magnetic Spectrometer.
Researchers studied manta ray 'Whoopi' who suffered significant propeller cuts in 2015 and found she healed by 50% in just 46 days. The study reveals a unique adaptive immune system likely behind the high healing capacity of sharks and rays.
Researchers clarify the process by which gamma-ray flashes are generated from thunderstorms, discovering they can produce an ultraviolet emission known as an Elve. The findings reveal that high-electric fields produced just prior to a lightning bolt within the thunderstorm cloud trigger the TGF.
Calculations by Allen Mills predict the existence of stable positronium bubbles in liquid helium, which could lead to the creation of gamma-ray lasers. Such lasers have applications in medical imaging, spacecraft propulsion, and cancer treatment.
Researchers detected tera-electron volt radiation in the afterglow of GRB 190114C, a gamma-ray burst from a dying star. This validated their predictions and provided new insights into the extreme environment of gamma-ray bursts.
A team of scientists has detected extremely energetic light particles from the violent death of a heavy star, shedding new light on gamma ray bursts. By measuring the distance and energy of these particles, researchers gained insights into the extreme physical processes involved in star deaths.
Scientists have detected gamma-rays from two gamma-ray bursts with ground-based telescopes, producing energies up to 100 billion times that of visible light. The observations provide insights into the gigantic explosions and their physical mechanisms.
The detection of record-setting gamma-ray bursts by NASA's Fermi Gamma-ray Space Telescope and Neil Gehrels Swift Observatory has provided new insights into the mechanisms driving these events. The blasts produce an initial pulse of gamma rays, followed by afterglows that can be detected at longer wavelengths.
An international team of researchers has successfully detected a gamma-ray burst in very-high-energy gamma light, challenging current understanding of these phenomena. The detection was made using the H.E.S.S. telescope and reveals the presence of extremely accelerated particles that exist long after the explosion.
Researchers discovered the most energetic gamma-ray burst ever recorded, emitting 1 tera-electron-volt of energy. This breakthrough confirms theoretical predictions and opens new avenues for understanding these powerful cosmic events.
The MAGIC telescopes detected the first-ever TeV photons from a gamma-ray burst, providing critical new insights into the physical processes at work in these cosmic events. The discovery sheds light on the mysteries surrounding gamma-ray bursts and their energetic emissions.