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Personal flotation devices being worn on a navy transport . A personal flotation device (PFD; also referred to as a life jacket, life preserver, life belt, Mae West, life vest, life saver, cork jacket, buoyancy aid or flotation suit) is a flotation device in the form of a vest or suit that is worn by a user to prevent the wearer from drowning in a body of water.
Work or labor (labour in Commonwealth English) is the intentional activity people perform to support the needs and desires of themselves, other people, or organizations. [1] In the context of economics , work can be viewed as the human activity that contributes (along with other factors of production ) towards the goods and services within an ...
The Railway Labor Act (1926) required employers to bargain collectively with unions. In 1931 the Supreme Court, in the case of Texas & N.O.R. Co. v. Brotherhood of Railway Clerks, upheld the act's prohibition of employer interference in the selection of bargaining representatives. [26]
Abstract labour and concrete labour refer to a distinction made by Karl Marx in his critique of political economy. It refers to the difference between human labour in general as economically valuable worktime versus human labour as a particular activity that has a specific useful effect within the (capitalist) mode of production .
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The simplest definition of socially necessary labour time is the amount of labour time performed by a worker of average skill and productivity, working with tools of the average productive potential, to produce a given commodity. This is an "average unit labour-cost", measured in working hours.
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At the height of the labor trade, more than one-half the adult male population of several of the islands worked abroad. [ citation needed ] Over a period of 40 years, from the mid-19th century to the early 20th century, labor for the sugar-cane fields of Queensland , Australia included an element of coercive recruitment and indentured servitude ...