Current Magnetic Resonance News and Events

Current Magnetic Resonance News and Events, Magnetic Resonance News Articles.
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Beta blockers can repair malformed blood vessels in the brain
Propranolol, a drug that is efficacious against infantile haemangiomas (''strawberry naevi'', resembling birthmarks), can also be used to treat cerebral cavernous malformations, a condition characterised by misshapen blood vessels in the brain and elsewhere. This has been shown by researchers at Uppsala University in a new study published in the scientific journal Stroke. (2021-02-23)

The magic angle of twisted graphene
Trapped tightly between two monolayers of carbon superimposed at a precise angle, electrons interact and can produce superconductivity. This is what UCLouvain's researchers reveal in an article published in Nature. This property allows electric power to circulate without any resistivity, without energy lost, within the nanostructure. (2021-02-23)

Spintronics: New production method makes crystalline microstructures universally usable
New storage and information technology requires new higher performance materials. One of these materials is yttrium iron garnet, which has special magnetic properties. Thanks to a new process, it can now be transferred to any material. Developed by physicists at Martin Luther University Halle-Wittenberg (MLU), the method could advance the production of smaller, faster and more energy-efficient components for data storage and information processing. The physicists have published their results in the journal ''Applied Physics Letters''. (2021-02-23)

Agile underwater glider could quietly survey the seas
Autonomous underwater vehicles have become versatile tools for exploring the seas. But they can be disruptive to the environment or have trouble traveling through confined spaces. Purdue University researchers are studying an alternative: highly maneuverable, low-cost underwater gliders that operate silently. (2021-02-23)

High-throughput screening for Weyl semimetals with S4 symmetry
A new topological invariant χ is defined in systems with S4 symmetry to diagnose the existence of Weyl fermions. By calculating χ, the computational cost for searching Weyl semimetals is greatly reduced. Recently, Gao et al. implemented this method in the high-throughput screening and found a lot of new Weyl semimetal candidates with exotic properties, providing realistic platforms for future experimental study of the interplay between Weyl fermions and other exotic states. (2021-02-23)

Concept for a new storage medium
Physicists from Switzerland, Germany and Ukraine have proposed an innovative new data storage medium. The technique is based on specific properties of antiferromagnetic materials that had previously resisted experimental examination. (2021-02-22)

Magnetic effect without a magnet
Electric current is deflected by a magnetic field - this leads to the so-called Hall effect. A surprising discovery has now been made at TU Wien: an exotic metal was examined and a giant Hall effect was found to be produced by the material, in the total absence of any magnetic field. (2021-02-22)

Politics and the brain: Attention perks up when politicians break with party lines
Building upon previous work studying the brain and politics, Ingrid Haas, associate professor of political science affiliated with Nebraska's Center for Brain, Biology and Behavior, examined the insula and anterior cingular cortex in 58 individuals using functional Magnetic Resonance Imaging and learned that the human brain processes politically incongruent statements differently. (2021-02-22)

Researchers create 'beautiful marriage' of quantum enemies
Cornell University scientists have identified a new contender when it comes to quantum materials for computing and low-temperature electronics. (2021-02-22)

42,000-year-old trees allow more accurate analysis of last Earth's magnetic field reversal
The last complete reversal of the Earth's magnetic field, the so-called Laschamps event, took place 42,000 years ago. Radiocarbon analyses of the remains of kauri trees from New Zealand now make it possible for the first time to precisely time and analyse this event and its associated effects, as well as to calibrate geological archives such as sediment and ice cores from this period. Simulations based on this show considerable effects in the Earth's atmosphere. (2021-02-19)

Swimming upstream on sound waves
ETH researchers are among the first scientists to have succeeded in propelling microvehicles against a fluid flow using ultrasound. In future, these tiny vehicles are set to be introduced into the human bloodstream, thereby revolutionising the field of medicine. (2021-02-19)

Deep brain stimulation prevents epileptic seizures in mouse model
Scientists led by neurobiologist Prof. Dr. Carola Haas, head of the research group at the Department of Neurosurgery at Medical Center - University of Freiburg and the BrainLinks-BrainTools research center, have investigated a new therapeutic approach to prevent epileptic seizures in temporal lobe epilepsy. They showed in mice that low-frequency stimulation of specific brain areas could completely stop epileptic activity. (2021-02-19)

Sounding rocket CLASP2 elucidates solar magnetic field
Cooperative operations between a solar observation satellite and a sounding-rocket telescope have measured the magnetic field strength in the photosphere and chromosphere above an active solar plage region. This is the first time that the magnetic field in the chromosphere has been charted all the way up to its top. This finding brings us closer to understanding how energy is transferred between layers of the Sun. (2021-02-19)

Magnetic attraction: Breakthrough test for malaria
After nearly a decade of research, a new test that detects the magnetic properties of malaria-infected blood could soon be used to help eliminate the mosquito-borne disease. (2021-02-18)

Magnetic reversal 42,000 years ago triggered global environmental change
Nearly 42,000 years ago, when Earth's magnetic fields reversed, this triggered major environmental changes, extinction events, and long-term changes in human behavior, a new study reports. (2021-02-18)

Ancient relic points to a turning point in Earth's history 42,000 years ago
The temporary breakdown of Earth's magnetic field 42,000 years ago sparked major climate shifts that led to global environmental change and mass extinctions, a new international study co-led by UNSW Sydney and the South Australian Museum shows. (2021-02-18)

First humans in Tasmania must have seen spectacular auroras
A small sub-alpine lake in western Tasmania has helped establish that 41,000 years ago Australia experienced the Laschamp geomagnetic excursion and that Tasmanian, Aboriginals, would've seen it. (2021-02-15)

Child brain tumors can be classified by advanced imaging and AI
Diffusion weighted imaging and machine learning can successfully classify the diagnosis and characteristics of common types of paediatric brain tumours a UK-based multi-centre study, including WMG at the University of Warwick has found. This means that the tumour can be characterised and treated more efficiently. (2021-02-15)

How comparable different stress tests are
Scientists use many different tests to investigate what happens in the brain in people experiencing stress. It is unclear to what extent the various methods with which subjects are placed under stress are comparable to each other. In a meta-analysis, researchers compared 31 previous studies that had investigated stress using functional magnetic resonance imaging. The team worked out which regions of the brain are activated as standard during stress and which stress tests trigger similar activation patterns. (2021-02-12)

Birds can 'read' the Earth's magnetic signature well enough to get back on course
Birdwatchers get excited when 'rare' migratory birds makes landfall having been blown beyond their normal range. But these are rare for a reason; most birds that have made the journey before are able to correct for large displacements and find their final destination. Now new research shows how birds displaced in this way are able to navigate back to their migratory route and gives us an insight into how they accomplish this feat. (2021-02-12)

Scientists manipulate magnets at the atomic scale
Fast and energy-efficient future data processing technologies are on the horizon after an international team of scientists successfully manipulated magnets at the atomic level. Physicist Dr Rostislav Mikhaylovskiy from Lancaster University said: ''With stalling efficiency trends of current technology, new scientific approaches are especially valuable. Our discovery of the atomically-driven ultrafast control of magnetism opens broad avenues for fast and energy-efficient future data processing technologies essential to keep up with our data hunger.'' (2021-02-12)

A new way of forming planets
Scientists of the Universities of Zurich and Cambridge, associated with the Swiss National Centre of Competence in Research PlanetS, suggest a new explanation for the abundance in intermediate-mass exoplanets - a long-standing puzzle of Astronomy. (2021-02-11)

A new strategy to destroy cancer cells using magnetic nanoparticles and fields
The scientists analyzed how magnetic nanoparticles can be manipulated in in vitro conditions to achieve a selective antitumor effect. The method is based on the combined action of nanoparticles and permanent magnetic fields on human tumor cells. (2021-02-11)

How messenger substances influence individual decision-making
A research team of psychologists and physicists from Heinrich Heine University Düsseldorf (HHU) and Otto von Guericke University Magdeburg investigated the neurobiological processes in various forms of decision-making. They report in the journal Nature Communications that a different ratio of two messenger substances affects short-term and long-term strategic decisions differently. (2021-02-10)

Mediterranean-style diet linked to better thinking skills in later life
People who eat a Mediterranean-style diet--particularly one rich in green leafy vegetables and low in meat--are more likely to stay mentally sharp in later life, a study shows. Closely adhering to a Mediterranean diet was associated with higher scores on a range of memory and thinking tests among adults in their late 70s, the research found. The study found no link, however, between the Mediterranean-style diet and better brain health. (2021-02-10)

How the 3-D structure of eye-lens proteins is formed
Chemical bonds within the eye-lens protein gamma-B crystallin hold the protein together and are therefore important for the function of the protein within the lens. Contrary to previous assumptions, some of these bonds, called disulphide bridges, are already formed simultaneously with the synthesis of the protein in the cell. This is what scientists at Goethe University Frankfurt, Max Planck Institute of Biophysics and the French Institute de Biologie Structurale in Grenoble have discovered. (2021-02-10)

Plant-based magnetic nanoparticles with antifungal properties
A team of researchers from Immanuel Kant Baltic Federal University obtained magnetic nanoparticles using sweet flag (Acorus calamus). Both the roots and the leaves of this plant have antioxidant, antimicrobial, and insecticide properties. (2021-02-10)

Physicists have optimized the method of smelting the MAX phase
Physicists from the Immanuel Kant Baltic Federal University in collaboration with their foreign colleagues have optimized the method for obtaining highly pure Cr2AlC MAX-phase, which is necessary for studying the magnetic properties of this compound when it is doped with manganese. The unique properties of magnetic MAX materials could be used in a wide range of new technologies from magnetic cooling to spintronics. (2021-02-10)

Traumatic stress in childhood can lead to brain changes in adulthood: study
A new study has shown that traumatic or stressful events in childhood may lead to tiny changes in key brain structures that can now be identified decades later. The study is the first to show that trauma or maltreatment during a child's early years--a well-known risk factor for developing mental health conditions such as major depressive disorder in adulthood--triggers changes in specific subregions of the amygdala and the hippocampus. (2021-02-09)

Physicists finesse the storing of light to create rainbows of colour
Physicists at the University of Bath have found a way to use resonance to harness the energy of light more effectively inside microresonators. (2021-02-09)

AD diagnostics could become more accessible
A team of researchers from the Laboratory of Biophysics at NUST MISIS, Lomonosov Moscow State University and D. Mendeleev University of Chemical Technology of Russia has summarized metal-containing diagnostic agents for positron emission tomography (PET), magnetic resonance imaging (MRI), and single-photon emission computed tomography (SPECT) imaging of Alzheimer's disease (AD). According to the researchers, their use could improve access to diagnostic imaging of AD among the risk groups. (2021-02-09)

Scientists suggested using non-symmetrical magnets for target drug delivery
A team of scientists from Immanuel Kant Baltic Federal University and the University of Genoa suggested combining permanent magnets of different shapes to target magnetic particles with drugs at the organs of lab mice. Such a combination secured a magnetic driving force that was ten times stronger compared to regular cylindrical magnets. (2021-02-09)

Quantum computing enables simulations to unravel mysteries of magnetic materials
A multi-institutional team became the first to generate accurate results from materials science simulations on a quantum computer that can be verified with neutron scattering experiments and other practical techniques. (2021-02-09)

Super-Earth atmospheres probed at Sandia's Z machine
Sandia National Laboratorie' Z machine has replicated the gravitational pressures on so-called ''super-Earths'' to determine which might maintain atmospheres that could support life. Astronomers believe that super-Earths -- collections of rocks up to eight times larger than Earth -- exist in the millions in our galaxy. ''The question before us is whether any of these super planets are actually Earthlike, with active geological processes, atmospheres and magnetic fields,'' said Sandia physicist Joshua Townsend. The researchers found seven. (2021-02-09)

Scientists create flexible biocompatible cilia that can be controlled by a magnet
Filaments made of polymer-coated iron oxide nanoparticles are obtained by exposing the material to a magnetic field under controlled temperature. The applications are myriad and include transporting substances into cells or directing fluids. (2021-02-09)

Type 2 diabetes: drugs initially increase glucose production
Although SGLT-2 inhibitors are central to the treatment of diabetes, their exact mode of action was hitherto unknown. A study shows that there is a direct correlation between the elimination of glucose via the kidneys and new glucose production in the liver. (2021-02-08)

Machine learning could aid mental health diagnoses
A way of using machine learning to more accurately identify patients with a mix of psychotic and depressive symptoms has been developed by researchers at the University of Birmingham. (2021-02-08)

A magnetic twist to graphene
By combining ferromagnets and two rotated layers of graphene, researchers open up a new platform for strongly interacting states using graphene's unique quantum degree of freedom. (2021-02-08)

'Magnetic graphene' forms a new kind of magnetism
Researchers have identified a new form of magnetism in so-called magnetic graphene, which could point the way toward understanding superconductivity in this unusual type of material. (2021-02-08)

Synchronization of brain hemispheres changes what we hear
Most of the time, our brain receives different input from each of our ears, but we nevertheless perceive speech as unified sounds. This process takes place through synchronization of the areas of the brain involved with the help of gamma waves, neurolinguists at the University of Zurich have now discovered. Their findings may lead to new treatment approaches for tinnitus. (2021-02-08)

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