Search results for "Positron" - New World Encyclopedia
From New World Encyclopedia
- events. Such virtual events—e.g. electron-positron pair production—cannot be directly observed but do have indirect effects that play a role in ...22 KB (3,234 words) - 17:14, 4 May 2023
- Sodium (chemical symbol Na, atomic number 11) is a member of a group of chemical elements known as alkali metals. Silvery in color, it is soft ...21 KB (3,204 words) - 21:54, 30 January 2023
- Obsessive-compulsive disorder (OCD) is a neurobiobehavioral mental disorder characterized by distressful, time-consuming thoughts (obsessions ...25 KB (3,597 words) - 16:09, 27 November 2022
- -0 to -3 (electron) or from +0 to +3 (positron). The electron anti-neutrino ... no matter particles, dark), and the positron) or asymmetric as in -1 ...42 KB (5,963 words) - 06:44, 13 June 2023
- Category:Politics and social sciences Category:Education Category:Psychology [[Image:Wolfgang-amadeus-mozart 1.jpg|thumb|200 px|Wolfgang Amadeus ...26 KB (3,861 words) - 01:14, 12 April 2023
- A complete atom, with a positron orbiting the nucleus, would be called antideuterium, but antideuterium has not been created as of 2005. The ...31 KB (4,687 words) - 10:07, 29 January 2024
- of synaptic reuptake). Similarly, a positron emission tomography (PET) is able to monitor glucose and oxygen metabolism as well as neurotransmitter ...28 KB (4,199 words) - 22:35, 20 November 2023
- Neuroscience is an interdisciplinary field in science that is organized around the study of the nervous system. As such, the field encompasses ...32 KB (4,338 words) - 04:35, 11 March 2023
- Titanium (chemical symbol Ti, atomic number 22) is a silvery-white, lustrous metal. Light and strong, it is resistant to corrosion, including ...27 KB (3,874 words) - 03:49, 1 May 2023
- In the 1990s, psychologists began using Positron Emission Tomograph (PET) and later, Functional magnetic resonance imaging (fMRI) to image the ...32 KB (4,749 words) - 18:24, 21 August 2023
- analysis tools like Electroencephalography (EEG), Positron Emission Tomography (PET), and Functional Magnetic Resonance Imaging (fMRI) to this study. ...35 KB (5,056 words) - 17:58, 26 March 2023
- and new technologies, such as computerized EEG, positron emission tomography, regional cerebral blood flow, and nuclear magnetic resonance imaging, are ...33 KB (4,676 words) - 00:39, 2 May 2023
- where e+ is a positron, γ is a gamma ray photon, νe is a neutrino, and H and He are isotopes of hydrogen and helium, respectively. The energy ...80 KB (12,078 words) - 15:50, 27 April 2023
- example with the pulsed Godiva device) and positron radiation date=March 2008 ) (for example, neutron activation analysis and potassium-argon dating. ...45 KB (6,704 words) - 00:40, 17 November 2022
- predicted the existence of the positron, which was discovered two years later in 1932. Despite this early success, the idea was soon abandoned ...37 KB (5,624 words) - 20:38, 21 April 2020
- [[File:Brain metabolism and drug addiction.jpg|thumb|400px|Brain positron emission tomography images that compare [[Human brain#Metabolism|brain ...52 KB (7,118 words) - 05:48, 15 June 2023
- Uranium (chemical symbol U, atomic number 92) is a silvery metallic chemical element in the actinide series of the periodic table. The heaviest ...48 KB (6,867 words) - 15:33, 16 January 2024
- (usually either a gamma-emitter or a positron emitter). There is a degree of overlap between nuclear medicine and radiology, as evidenced by ...53 KB (7,336 words) - 04:05, 9 November 2022
- , Asimov disliked the word "positron" as the term for the electron's antiparticle. As he explained in the nonfiction work Atom: ...53 KB (8,012 words) - 13:28, 6 March 2024
- predicting the existence of the positron (which had been postulated by Paul Dirac), a formulation that he however did not carry to its natural ...58 KB (8,808 words) - 01:10, 8 February 2023
