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общая лексика
биологическая очистка (сточных вод)
[ilimi'neiʃ(ə)n]
общая лексика
устранение
удаление
элиминация
изъятие
ликвидация
уничтожение
математика
исключение
металлургия
выгорание (напр. углерода)
медицина
элиминирование
уничтожение (микробов)
строительное дело
устранение, удаление
нефтегазовая промышленность
подавление
Смотрите также
существительное
общая лексика
удаление
исключение
выбрасывание
элиминирование
отсев
выбывание
уничтожение
ликвидация
выбывание (также [спорт.])
устранение
отобранный путем отсева
физиология
очищение
выделение
экскреция
удаление из организма
математика
исключение (неизвестного)
Смотрите также
Biological half-life (also known as elimination half-life, pharmacological half-life) is the time taken for concentration of a biological substance (such as a medication) to decrease from its maximum concentration (Cmax) to half of Cmax in the blood plasma, and is denoted by the abbreviation .
This is used to measure the removal of things such as metabolites, drugs, and signalling molecules from the body. Typically, the biological half-life refers to the body's natural detoxification (cleansing) through liver metabolism and through the excretion of the measured substance through the kidneys and intestines. This concept is used when the rate of removal is roughly exponential.
In a medical context, half-life explicitly describes the time it takes for the blood plasma concentration of a substance to halve (plasma half-life) its steady-state when circulating in the full blood of an organism. This measurement is useful in medicine, pharmacology and pharmacokinetics because it helps determine how much of a drug needs to be taken and how frequently it needs to be taken if a certain average amount is needed constantly. By contrast, the stability of a substance in plasma is described as plasma stability. This is essential to ensure accurate analysis of drugs in plasma and for drug discovery.
The relationship between the biological and plasma half-lives of a substance can be complex depending on the substance in question, due to factors including accumulation in tissues, protein binding, active metabolites, and receptor interactions.