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Non-essentialism is not restricted to general philosophical speculation. It is also found in academic disciplines such as sociology, anthropology, theology, history/historiography and science. How non-essentialism is used in these discourses varies a bit given their different content and subject matter.
In 2002 the definition was changed to: Essential medicines are those that satisfy the priority health care needs of the population. [10] This remains the definition as of 2019. [1] The use of essential medicines lists has resulted in better quality of care and improved management of health resources in the most cost-effective manner.
An essential trace element is a dietary element, a mineral that is only needed in minute quantities for the proper growth, development, and physiology of the organism. [4] The essential trace elements are those that are required to perform vital metabolic activities in organisms. [ 5 ]
Boron is essential to plants, [43] [44] [45] but not animals. [6] Non-essential elements can sometimes appear in the body when they are chemically similar to essential elements (e.g. Rb + and Cs + replacing Na +), so that essentiality is not the same thing as uptake by a biological system. [1]
The distinction between essential and non-essential amino acids is somewhat unclear, as some amino acids can be produced from others. The sulfur-containing amino acids, methionine and homocysteine, can be converted into each other but neither can be synthesized de novo in humans. Likewise, cysteine can be made from homocysteine but cannot be ...
Essential services may refer to a class of occupations that have been legislated by a government to have special restrictions in regard to labour actions such as not being allowed to strike. The International Labour Office , a United Nations agency, distinguishes an essential service from a minimum service.
Engels curves showing income elasticity of demand (YED) of normal goods (comprising luxury (red) and necessity goods (yellow)), perfectly inelastic (green) and inferior goods (blue)
Cessation of non-essential medical procedures, delay of routine care, and conversion to telehealth as clinics and hospitals remained overwhelmed with COVID-19 patients. [ 38 ] The ethics of COVID-19 spans many more areas of medicine and society than represented in this paragraph — some of these principles will likely not be discovered until ...