Search results
Results from the WOW.Com Content Network
A proton is a stable subatomic particle, symbol. p. , H +, or 1 H + with a positive electric charge of +1 e (elementary charge). Its mass is slightly less than the mass of a neutron and approximately 1836 times the mass of an electron (the proton-to-electron mass ratio). Protons and neutrons, each with a mass of approximately one atomic mass ...
Proton Mail (previously written as ProtonMail) is a Swiss end-to-end encrypted email service founded in 2013 headquartered in Plan-les-Ouates, Switzerland. [7] It uses client-side encryption to protect email content and user data before they are sent to Proton Mail servers, unlike other common email providers such as Gmail and Outlook.com. [8]
Proton AG is a Swiss technology company offering privacy -focused online services. It was founded in 2014 by a group of scientists who met at CERN and created Proton Mail. [6][7] The company's products are Proton Mail, Proton VPN, Proton Calendar, Proton Drive, and Proton Pass. It is also the parent company of SimpleLogin and Standard Notes.
Proton Holdings. Proton Holdings Berhad, commonly known as Proton (stylised PROTON), is a Malaysian multinational automotive company. Proton was established on May 7, 1983, as Malaysia's sole national budget car company until the advent of Perodua in 1993. The company is headquartered in Shah Alam, Selangor, and operates additional facilities ...
Proton therapy. In medicine, proton therapy, or proton radiotherapy, is a type of particle therapy that uses a beam of protons to irradiate diseased tissue, most often to treat cancer. The chief advantage of proton therapy over other types of external beam radiotherapy is that the dose of protons is deposited over a narrow range of depth; hence ...
Proton VPN is a VPN service launched in 2017 [8] and operated by the Swiss company Proton AG, the company behind the email service Proton Mail. [9] [10] According to its official website, Proton VPN and Proton Mail share the same management team, offices, and technical resources, and are operated from Proton's headquarters in Plan-les-Ouates, Switzerland. [11]
Particle therapy. ICD-9. 92.26. [edit on Wikidata] Particle therapy is a form of external beam radiotherapy using beams of energetic neutrons, protons, or other heavier positive ions for cancer treatment. The most common type of particle therapy as of August 2021 is proton therapy. [1]
The neutron is a subatomic particle, symbol n or n0, which has a neutral (not positive or negative) charge, and a mass slightly greater than that of a proton. Protons and neutrons constitute the nuclei of atoms. Since protons and neutrons behave similarly within the nucleus, they are both referred to as nucleons.