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Popular Magnetic Fields News and Current Events, Magnetic Fields News Articles.
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Unprecedented accuracy in locating brain electrical activity with new device
Researchers at Aalto University in Finland have developed the world's first device designed for mapping the human brain that combines whole-head magnetoencephalography (MEG) and magnetic resonance imaging (MRI) technology. MEG measures the electrical function and MRI visualizes the structure of the brain. The merging of these two technologies will produce unprecedented accuracy in locating brain electrical activity non-invasively. (2012-07-26)

Soft magnetic material characterizations get a harder look
In motors, generators and similar electric machines, the electrical current that powers them generates magnetic fields that magnetize some of the metallic components. Choosing the right magnetic material is crucial for designing efficient machines, so researchers analyzed the existing system for characterizing soft magnetic materials. To identify a better system, they looked at several factors that can affect the uncertainty inherent in the measurement of magnetic properties. Their results are in this week's AIP Advances. (2017-11-14)

MRI 'glove' provides new look at hand anatomy
A new kind of MRI component in the shape of a glove delivers the first clear images of bones, tendons and ligaments moving together. (2018-05-08)

Investigating optical activity under an external magnetic field
A new study published in EPJ B by Chengping Yin, Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China, aims to derive an analytical model of optical activity in black phosphorous under an external magnetic field. (2020-11-06)

Scientists achieve first ever acceleration of electrons in plasma waves
An international team of researchers, affiliated with South Korea's Ulsan National Institute of Science and Technology (UNIST) has demonstrated a new technique for accelerating electrons to very high energies over short distances. (2018-10-13)

New hard disk write head analytical technology can increase hard disk capacities
Using synchrotron radiation at SPring-8 - a large-scale synchrotron radiation facility - Tohoku University, Toshiba Corporation, and the Japan Synchrotron Radiation Research Institute (JASRI) have successfully imaged the magnetization dynamics of a hard disk drive (HDD) write head for the first time, with a precision of one ten-billionth of a second. The method makes possible precise analysis of write head operations, accelerating the development of the next-generation write heads and further increasing HDD capacity. (2021-01-07)

Researchers bring high res magnetic resonance imaging to nanometer scale
A new technique that brings magnetic resonance imaging to the nanometer scale with unprecedented resolution will open the door for major advances in understanding new materials, virus particles and proteins that cause diseases like Parkinson's and Alzheimer's. (2018-02-21)

Superconductivity can induce magnetism
Researchers from the Université de Montréal, the Paul Scherrer Institute, the Swiss Federal Institute of Technology Zurich, and the Los Alamos National Laboratory publish their results in the prestigious journal Science. (2008-09-11)

Groundbreaking findings on autism to be presented at Carnegie Mellon international symposium
Today's autism research draws on a variety of scientific disciplines, from genetics to functional magnetic resonance imaging to neural development. At the 35th Carnegie Symposium on Cognition, (2008-09-29)

Measure of age in soil nitrogen could help precision agriculture
What's good for crops is not always good for the environment. Nitrogen, a key nutrient for plants, can cause problems when it leaches into water supplies. University of Illinois engineers developed a model to calculate the age of nitrogen in corn and soybean fields, which could lead to improved fertilizer application techniques to promote crop growth while reducing leaching. (2016-07-25)

MRIs during pregnancy and outcomes for infants, children
In an analysis that included more than 1.4 million births, exposure to magnetic resonance imaging (MRI) during the first trimester of pregnancy compared with nonexposure was not associated with increased risk of harm to the fetus or in early childhood, although gadolinium MRI at any time during pregnancy was associated with an increased risk of a broad set of rheumatological, inflammatory, or skin conditions and, possibly, for stillbirth or neonatal death, according to a study appearing in the Sept. 6 issue of JAMA. (2016-09-06)

NASA's MAVEN reveals Mars has metal in its atmosphere
Mars has electrically charged metal atoms (ions) high in its atmosphere, according to new results from NASA's MAVEN spacecraft. The metal ions can reveal previously invisible activity in the mysterious electrically charged upper atmosphere (ionosphere) of Mars. (2017-04-10)

The day LISA Pathfinder hung in the balance
At the core of ESA's LISA Pathfinder mission sit two small hearts. Each is a cube, just five centimetres across. Together they will allow LISA Pathfinder to lay the foundations for future space-based measurements that investigate the very core of Einstein's General Relativity. (2006-10-11)

Researchers unveil high-sensitivity 3-D technique using single-atom measurements
Researchers at Griffith University working with Australia's Commonwealth Scientific and Industrial Research Organisation (CSIRO) have unveiled a stunningly accurate technique for scientific measurements which uses a single atom as the sensor, with sensitivity down to 100 zeptoNewtons. (2018-03-23)

Fast radio burst source linked to 'extreme' environment
A new study shows that the only known repeating fast radio burst source is in an 'extreme' environment which is among the most highly magnetized regions of space ever observed. Such an environment has only been seen around massive black holes, but could also plausibly be caused by a combination of other extreme astrophysical circumstances. The new measurements could offer a major clue to the FRB's cause. (2018-01-10)

Giant intrinsic chirality from planar dielectric nanostructures
Harvard researchers have developed a metasurface, comprised of a single planar layer of nanostructures, which exhibits strong optical chirality in transmission. This means it can let circularly polarized light of one polarization pass through almost unhindered, while light of the opposite helicity is completely diffracted away. Such capabilities are incredibly useful for a host of applications, such as circular dichroism spectroscopy in the analysis of drug samples, and polarization filters in telecommunications. This work challenges some long-held notions about chiral metamaterials and metasurfaces. (2018-02-23)

Neuron and synapse-mimetic spintronics devices developed
A research group from Tohoku University has developed spintronics devices which are promising for future energy-efficient and adoptive computing systems, as they behave like neurons and synapses in the human brain. (2019-04-17)

NASA GOLD Mission to image Earth's interface to space
On Jan. 25, 2018, NASA launches Global-scale Observations of the Limb and Disk, or GOLD, a hosted instrument aboard SES-14 that will inspect the dynamic intermingling of space and Earth's uppermost atmosphere. (2018-01-24)

NASA mission uncovers a dance of electrons in space
NASA's MMS mission studies how electrons spiral and dive around the planet in a complex dance dictated by the magnetic and electric fields, and a new study revealed a bizarre new type of motion exhibited by these electrons. (2017-05-18)

Room-temperature multiferroic thin films and their properties
Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films. (2018-01-05)

How dopamine drives brain activity
Using a specialized magnetic resonance imaging (MRI) sensor that can track dopamine levels, MIT neuroscientists have discovered how dopamine released deep within the brain influences distant brain regions. (2020-04-01)

Pressure runs high at edge of solar system
Out at the boundary of our solar system, pressure runs high. This pressure, the force plasma, magnetic fields and particles like ions, cosmic rays and electrons exert on one another when they flow and collide, was recently measured by scientists in totality for the first time -- and it was found to be greater than expected. (2019-10-08)

Kazan University puts forth ideas on the nature of dark matter
As we currently know, dark energy and dark matter comprise 96 percent of the total mass of the Universe. Two main hypotheses about the nature of dark matter are presently debated. One of them posits that dark matter consists of massive compact halo objects, the other ascribes this property to weakly interacting mass particles. (2019-02-05)

As climate is warming up, more bird nests are destroyed in Finnish farmland
A new study shows that birds have shifted the time of their breeding much faster than the farmers are anticipating their sowing times in Finnish farmland. This means that more birds are nowadays laying their eggs on fields that are still to be sown, a mismatch in timing that is most likely fatal for the bird nests. (2018-01-11)

Heads in the cloud: Scientists predict internet of thoughts 'within decades'
An international collaboration led by researchers at UC Berkeley and the US Institute for Molecular Manufacturing predicts that exponential progress in nanotechnology, nanomedicine, AI, and computation will lead this century to the development of a ''Human Brain/Cloud Interface'' (B/CI), that connects neurons and synapses in the brain to vast cloud-computing networks in real time. (2019-04-12)

Relativity matters: Two opposing views of the magnetic force reconciled
Our understanding of how a point-particle carrying a charge moves in presence of an inhomogenous magnetic field relied until now on two theories that were believed to differ. In a new study just published in EPJ C, the authors Johann Rafelski and colleagues from the University of Arizona, USA, succeeded in resolving this ambiguity. Their solution makes it possible to characterise the interaction of particles whose speed is close to the speed of light in the presence of inhomogeneous electromagnetic fields. (2018-01-29)

Origins of Earth's magnetic field remain a mystery
The existence of a magnetic field beyond 3.5 billion years ago is still up for debate. (2020-04-08)

The perils of publishing location data for endangered species
While the increasing accessibility of data from scientific studies creates many benefits -- and represents a process that should be broadly embraced -- in the context of conserving endangered species it can actually be problematic, write David Lindenmayer and Ben Scheele in this Essay. (2017-05-25)

What can be discovered at the junction of physics and chemistry?
TSU scientist Rashid Valiev and colleagues from the universities of Helsinki and Oslo have discovered a new type of rare molecules whose properties can be controlled by changing the induction of an external magnetic field. These are paramagnetic molecules from the class porphyrins. Porphyrins are part of hemoglobin and chlorophyll and are closely related to the processes of photosynthesis and respiration in living organisms. (2017-10-06)

Antiferromagnets prove their potential for spin-based information technology
As published in the online science journal Nature Communications, scientists at the Institute of Phyics at Johannes Gutenberg University Mainz (JGU) were now able to demonstrate current-induced switching of the Néel vector also for metallic thin films of a compound consisting of manganese and gold, Mn2Au, which orders antiferromagnetically at high temperatures. (2018-01-29)

Two weeks in the life of a sunspot
During its 13-day trip across the face of the sun, a sunspot recently put on a show for NASA's sun-watching satellites, producing several solar flares, a coronal mass ejection and a solar energetic particle event. (2017-08-04)

When we sign, we build phrases with similar neural mechanisms as when we speak
Differences between signed and spoken languages are significant, yet the underlying neural processes we use to create complex expressions are quite similar for both, a team of researchers has found. (2018-04-03)

Practical spin wave transistor one step closer
University of Groningen physicists have managed to alter the flow of spin waves through a magnet, using only an electrical current. This is a huge step towards the spin transistor that is needed to construct spintronic devices. These promise to be much more energy efficient than conventional electronics. The results were published on March 2 in Physical Review Letters. (2018-03-01)

Shedding light on the science of auroral breakups
Japanese scientists have quantitatively confirmed how energetic an auroral breakup can be. Using a combination of cutting-edge ground-based technology and new space-borne observations, they have demonstrated the essential role of an auroral breakup in ionizing the deep atmosphere. The research furthers our understanding of one of the most visually stunning natural phenomena. (2019-02-08)

Scientists estimate solar nebula's lifetime
MIT scientists have a new estimate for the lifetime of the solar nebula, the gaseous precursor of the solar system: Measurements from ancient meteorites suggest the solar nebula disappeared within 4 million years. (2017-02-09)

Heavy alcohol use changes adolescents' brain
Heavy alcohol use during adolescence alters the development of brain, according to a recent study from the University of Eastern Finland and Kuopio University Hospital. Cortical thinning was observable in young people who had been heavy drinkers throughout their adolescence. (2016-12-08)

A common electronic language for magnetic resonance
The standards used to re-transcribed the collected data in organic chemistry is however specific to each laboratory, making it difficult to export the information electronically. An international team headed by chemists from UNIGE has developed a new common electronic language around two main features: it translates the data of each molecule in exactly the same way and makes it simple to export it from one information system to another. (2018-06-06)

Community practices not following guidelines for MRI breast cancer screening
Guidelines are not being followed to ensure that breast cancer screening of high risk women, such as those with a strong family history of breast cancer, includes an additional MRI (magnetic resonance imaging) scan. Deirdre A. Hill of the University of New Mexico School of Medicine led a study on this in the Journal of General Internal Medicine which is published by Springer. (2017-12-07)

How to induce magnetism in graphene
Graphene, a two-dimensional structure made of carbon, is a material with excellent mechani-cal, electronic and optical properties. However, it did not seem suitable for magnetic applica-tions. Together with international partners, Empa researchers have now succeeded in synthesiz-ing a unique nanographene predicted in the 1970s, which conclusively demonstrates that car-bon in very specific forms has magnetic properties that could permit future spintronic applica-tions. The results have just been published in the renowned journal Nature Nanotechnology. (2019-12-10)

MIT researchers find clues to planets' birth
Meteorites that are among the oldest rocks ever found have provided new clues about the conditions that existed at the beginning of the solar system, solving a longstanding mystery and overturning some accepted ideas about the way planets form. (2008-10-30)

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