Natural killer cells, or NK cells, are a component of the innate immune system which does not directly attack invading microbes. Rather, NK cells destroy compromised host cells, such as tumor cells or virus-infected cells, recognizing such cells by a condition known as missing self..
Definition. Market Value is generally defined as: âThe most probable price which a property should bring in a competitive and open market under all conditions requisite to a fair sale, the buyer and seller, each acting prudently, knowledgeably and assuming the price is not affected by undue stimulus.
Surplus Value. Value created by the unpaid labor of wage workers, over and above the value of their labor power, and appropriated without compensation by the capitalist. Surplus value is a specific expression of the capitalist form of exploitation, in which the surplus product takes the form of surplus value. The production and appropriation of surplus value constitute the essence of the fundamental economic law of capitalism.