Reference Terms
from Wikipedia, the free encyclopedia
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
December 10, 2024
Dec. 4, 2024 — Since the 1960s, scientists who study X-rays, lightning and similar phenomena have observed something curious: In lab experiments replicating these occurrences, electrons accelerated between two electrodes can be of a higher energy than the voltage ...
Dec. 2, 2024 — A theoretical study suggests that small black holes born in the early universe may have left behind hollow planetoids and microscopic tunnels, and that we should start looking within rocks and old ...
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 ...
Latest Headlines
updated 12:56 pm ET
Dec. 10, 2024 — A new biotechnological process shows how to break down and remove the matrix from carbon fiber reinforced polymers so that recovered carbon fiber plies exhibit mechanical properties comparable to ...
Dec. 10, 2024 — Researchers have realized a new design for a superconducting quantum processor, aiming at a potential architecture for the large-scale, durable devices the quantum revolution demands. Unlike the ...
Dec. 8, 2024 — A new vortex electric field with the potential to enhance future electronic, magnetic and optical devices has been observed by ...
Dec. 5, 2024 — The new method can determine crystal structures underlying experimental data thus far difficult to ...
Dec. 9, 2024 — To help improve punctuality by understanding how delays propagate and identifying critical trains, researchers have developed a new network-based ...
Dec. 10, 2024 — Nanostructured two-dimensional gold monolayers offer possibilities in catalysis, electronics, and ...
Dec. 10, 2024 — For human researchers, it takes many years of work to discover new super-resolution microscopy techniques. The number of possible optical ...
Dec. 10, 2024 — Using microparticles consisting of extremely thin petals, medicines can be delivered via the bloodstream in a precisely targeted manner, for example to a tumour or blood clot. Ultrasound and other ...
Dec. 10, 2024 — The rapidly increasing aging population will lead to a shortage of care providers in the future. While robotic technologies are a potential alternative, their widespread use is limited by poor ...
Dec. 10, 2024 — A ground-breaking study showcases a significant advancement in laser technology, promising more affordable and scalable solutions for applications ranging from environmental monitoring to biomedical ...