Reference Terms
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Positron emission tomography
Positron emission tomography (PET) is a nuclear medicine medical imaging technique which produces a three dimensional image or map of functional processes in the body.
Note: The above text is excerpted from the Wikipedia article "Positron emission tomography", which has been released under the GNU Free Documentation License.
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Matter & Energy News
November 23, 2024
Nov. 12, 2024 — Global carbon emissions from fossil fuels have reached a record high in 2024, according to new ...
Nov. 6, 2024 — Thin, flexible device could help people with visual impairments 'feel' surroundings. Device comprises a hexagonal array of 19 actuators encapsulated in soft silicone. Device only uses energy when actuators change position, operating for longer ...
Oct. 23, 2024 — In the face of rising CO2 levels, scientists are searching for sustainable ways of pulling carbon dioxide out of the air, so-called direct air capture. A new type of porous material, a covalent organic framework (COF) with attached amines, stands ...
Oct. 17, 2024 — Researchers have developed a novel training protocol for brain-computer interfaces in a study with rhesus monkeys. The method enables precise control of prosthetic hands using signals from the brain alone. Researchers were able to show that the ...
Latest Headlines
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Nov. 21, 2024 — Scientists have presented work examining the circumstances surrounding the whale deaths off the coast of New Jersey in the winter of 2022-23, which prompted concern that survey work in the area ...
Nov. 21, 2024 — Scientists have presented results on the acoustic characteristics of a physical model of the Parasaurolophus' crest. They created a physical setup ...
Nov. 20, 2024 — New research may make it possible to keep electronic devices powered with another piece of equipment you're likely to bring with you while exploring the great outdoors: camping stoves. The work ...
Nov. 20, 2024 — The pipe organ stands as a bastion in concert halls and church sanctuaries, and even when not in use, it affects the acoustical environment around it. Researchers performed a sine-sweep through ...
Nov. 22, 2024 — Engineers have found a way to simultaneously mitigate three types of defects in parts produced using a prominent additive manufacturing technique ...
Nov. 22, 2024 — As part of an effort to overcome the long-term energy-storage challenge, engineers have invented a water-soluble chemical additive that improves the performance of a type of electrochemical storage ...
Nov. 20, 2024 — New spray developed by scientists could help boost UK farming and increase the UK's food ...
Nov. 20, 2024 — Inspired by the jets of water that squids use to propel themselves through the ocean, a team developed an ingestible capsule that releases a burst of ...
Nov. 22, 2024 — A research team has developed a new class of oral peptide therapeutic leads for treating chronic abdominal pain. This groundbreaking innovation offers a safe, non-opioid-based solution for conditions ...
Nov. 21, 2024 — Researchers have developed a groundbreaking microscopy method that enables detailed three-dimensional (3D) RNA analysis at cellular resolution in whole intact mouse brains. The new method, called ...