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In October 2020, TikTok users in Armenia reported a loss of app functionality, although it has not been confirmed whether this was the result of any intervention by the Armenian government in response to the use of the app by Azerbaijani sources to spread misinformation during the Second Nagorno-Karabakh war.
Message displayed to US users on the TikTok app during the shutdown on January 18, 2025. The short-form video-hosting service TikTok has been under a de jure nationwide ban in the United States since January 19, 2025, due to the US government's concerns over potential user data collection and influence operations by the government of the People's Republic of China.
TikTok's content moderation policies have been criticized as non-transparent (especially Douyin's). Internal guidelines depending on the country against the promotion of violence, separatism, and "demonization of countries" could be used to prohibit content related to the 1989 Tiananmen Square protests and massacre, Falun Gong, Tibet, Taiwan, Chechnya, Northern Ireland, the Cambodian genocide ...
In July 2023, while Contino was livestreaming on TikTok while dining at Crown & Crumpet in San Francisco, an online troll contacted the restaurant's owner to falsely accuse Contino of saying something inappropriate to a child customer. [7] [4] No child had been present during the live stream. [10]
Shou Zi Chew (Chinese: 周受资; born 1 January 1983) is a Singaporean business executive who has been the chief executive officer (CEO) of TikTok, an online video platform owned by Chinese company ByteDance, since 2021.
Threshold limit value − time-weighted average (TLV-TWA): The average exposure on the basis of a 8 hours per day, 40 hours per week work schedule. Threshold limit value − short-term exposure limit (TLV-STEL): A 15-minute TWA exposure that should not be exceeded at any time during a workday, even if the 8-hour TWA is within the TLV-TWA.
The JND is a statistical, rather than an exact quantity: from trial to trial, the difference that a given person notices will vary somewhat, and it is therefore necessary to conduct many trials in order to determine the threshold. The JND usually reported is the difference that a person notices on 50% of trials.
The test statistic used is a function of the pseudorange measurement residual (the difference between the expected measurement and the observed measurement) and the amount of redundancy. The test statistic is compared with a threshold value, which is determined based on the required probability of false alarm (Pfa).