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The Zoe Health Study, formerly the COVID Symptom Study, is a health research project of British company Zoe Limited (formerly Zoe Global limited) which uses a mobile app that runs on Android and iOS. The app was created in 2020 in response to the COVID-19 pandemic, in a collaboration between Zoe, King's College London, Guy's and St Thomas ...
The COVID-19 lab leak theory, or lab leak hypothesis, is the idea that SARS-CoV-2, the virus that caused the COVID-19 pandemic, came from a laboratory. This claim is highly controversial; most scientists believe the virus spilled into human populations through natural zoonosis (transfer directly from an infected non-human animal), similar to ...
Radiation protection. Radiation protection, also known as radiological protection, is defined by the International Atomic Energy Agency (IAEA) as "The protection of people from harmful effects of exposure to ionizing radiation, and the means for achieving this". [1] Exposure can be from a source of radiation external to the human body or due to ...
The International Commission on Radiological Protection (ICRP) is an independent, international, non-governmental organization, with the mission to protect people, animals, and the environment from the harmful effects of ionising radiation. Its recommendations form the basis of radiological protection policy, regulations, guidelines and ...
Environment portal. Ecology portal. v. t. e. Electromagnetic radiation can be classified into two types: ionizing radiation and non-ionizing radiation, based on the capability of a single photon with more than 10 eV energy to ionize atoms or break chemical bonds. [1] Extreme ultraviolet and higher frequencies, such as X-rays or gamma rays are ...
Transmission and life-cycle of SARS-CoV-2 causing COVID-19. Coronaviruses vary significantly in risk factor. Some can kill more than 30% of those infected, such as MERS-CoV, and some are relatively harmless, such as the common cold. [49] Coronaviruses can cause colds with major symptoms, such as fever, and a sore throat from swollen adenoids. [91]
The World Health Organization (WHO) is a leading organisation involved in the global coordination for mitigating the COVID-19 pandemic within the broader United Nations response to the pandemic. On 5 January 2020, the WHO notified the world about a "pneumonia of unknown cause" in China and subsequently began investigating the disease.
Unprotected experiments in the U.S. in 1896 with an early X-ray tube (Crookes tube), when the dangers of radiation were largely unknown. [1] The history of radiation protection begins at the turn of the 19th and 20th centuries with the realization that ionizing radiation from natural and artificial sources can have harmful effects on living ...