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Physical changes occur when objects or substances undergo a change that does not change their chemical composition. This contrasts with the concept of chemical change in which the composition of a substance changes or one or more substances combine or break up to form new substances. In general a physical change is reversible using physical means.
Metabolism (/ m ə ˈ t æ b ə l ɪ z ə m /, from Greek: μεταβολή metabolē, "change") is the set of life-sustaining chemical reactions in organisms.The three main functions of metabolism are: the conversion of the energy in food to energy available to run cellular processes; the conversion of food to building blocks of proteins, lipids, nucleic acids, and some carbohydrates; and the ...
The overall drug consumption and side-effects may be lowered significantly by depositing the active pharmaceutical agent in the diseased region only and in no higher dose than needed. Targeted drug delivery is intended to reduce the side effects of drugs in tandem decreases in consumption and treatment expenses.
A technological revolution is a period in which one or more technologies is replaced by another new technology in a short amount of time. It is a time of accelerated technological progress characterized by innovations whose rapid application and diffusion typically cause an abrupt change in society.
The U.S. Kefauver–Harris Amendment or "Drug Efficacy Amendment" is a 1962 amendment to the Federal Food, Drug, and Cosmetic Act. It introduced a requirement for drug manufacturers to provide proof of the effectiveness and safety of their drugs before approval, [1] [2] required drug advertising to disclose accurate information about side effects, and stopped cheap generic drugs being marketed ...
Raider as it was known in most of Europe became Twix in 1991. Sales immediately plummeted. [29] Royal Mail renamed itself Consignia in 2001. [30] The name change was unpopular with both the public and employees, and the company was renamed Royal Mail Group plc the following year. [31] Telecom Éireann became eircom in 1999. [32]
When two drugs affect each other, it is a drug–drug interaction (DDI). The risk of a DDI increases with the number of drugs used. [1] A large share of elderly people regularly use five or more medications or supplements, with a significant risk of side-effects from drug–drug interactions. [2] Drug interactions can be of three kinds:
White biotechnology, also known as industrial biotechnology, is biotechnology applied to industrial processes. An example is the designing of an organism to produce a useful chemical. Another example is the using of enzymes as industrial catalysts to either produce valuable chemicals or destroy hazardous/polluting chemicals. White biotechnology ...