Remove definition electromagnetism
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Are antimatter stars firing bullets of antihelium at Earth?

Physics World

At the time, scientists stated that if antihelium-4 were detected coming from space, then it would definitely have to come from the fusion process inside an antistar. The definitive discovery of antihelium would be absolutely fundamental,” says Dupourqué. The possible existence of antistars threatens to turn this on its head.

Radiation 106
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Drawing up a ‘Google Earth’ of the human body

Physics World

Most simple imaging methods – including conventional computed tomography (CT) – involve measuring the loss of intensity (the attenuation) of an electromagnetic wave as it passes through a sample. It was definitely what I wanted to work on, but the complexity of labelling it – obviously it would only be possible with computer science.”.

Radiation 106
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Electrical resistance standard could get a revised quantum definition

Physics World

Generating such high fields typically requires a superconducting electromagnet, however, and the stray fields associated with such magnets make it challenging to integrate a QHE-based resistance standard with the voltage standard (which is based on a separate phenomenon known as the AC Josephson effect). An important milestone.

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Scanning the cosmos for signs of alien technology

Physics World

While no definitive technosignature has been captured to date, we have picked up a few intriguing signals over the years. They do this by analysing the electromagnetic absorption spectra of an exoplanet’s atmosphere as it transits its sun, seeking the presence of gases such as oxygen, methane, water vapour and ozone (a proxy for oxygen).

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Portable MRI diagnoses stroke at the patient bedside

Physics World

The prospective study, described in Science Advances , is the first to demonstrate that the 0.064 T Swoop portable MRI system can be used to definitively diagnose and assess stroke at a patient’s bedside.

Radiation 145
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Setting the scene for a quantum marketplace: where quantum business is up to and how it might unfold

Physics World

The company has produced 32-qubit devices in which the qubits are quantum-entangled ions held in electromagnetic traps in a chip-sized device. We are now going through a rapid growth phase, but that will definitely be followed by a consolidation phase with mergers and acquisitions.”

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Beyond TikTok: Commerce Issues New CFIUS-Like Review Rule for Transactions Involving Information and Communications Technologies and Services

Arnold Porter

Products or services integral to data hosting or computing services that use, process, or retain, sensitive personal data[[N:The Interim Rule’s definition of "sensitive personal data" is nearly identical to the definition of that term in the regulations governing CFIUS reviews, 31 C.F.R. § 800.241(a)(ii).