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  2. Form I-140 - Wikipedia

    en.wikipedia.org/wiki/Form_I-140

    Form I-360 and Form I-526 are the forms used for the EB-4 (religious worker and special immigrant) and EB-5 (investor/entrepreneur) categories. Form I-765 is the form used to apply for an Employment Authorization Document. Unlike the forms above, it is not a petition but an application made directly by the person seeking the EAD.

  3. List of construction trades - Wikipedia

    en.wikipedia.org/wiki/List_of_construction_trades

    Workers rely on mobile, elevated platforms or scissor lifts. Ironworkers bolt the steelwork together using various tools, power tools and manual tools. [5] [6] Metallic Lathers may be included in this category. Laborer, a skilled worker proficient with pneumatic tools, hand tools, blasting, smaller heavy equipment. Laborers may also assist ...

  4. Migrant worker - Wikipedia

    en.wikipedia.org/wiki/Migrant_worker

    About 991,300 of Singapore's foreign workers fall under the category of unskilled or low-skilled. [35] In 2019, there were 322,700 male construction workers and 222,500 female domestic workers in Singapore. [35] Many came from Bangladesh, India, Indonesia, Sri Lanka, the Philippines or Thailand.

  5. Working class - Wikipedia

    en.wikipedia.org/wiki/Working_class

    Construction workers, commonly regarded as working class, at work at St. Paul's Hospital Cardiac center in Ethiopia, 2017. The working class is a subset of employees who are compensated with wage or salary-based contracts, whose exact membership varies from definition to definition.

  6. Skilled worker - Wikipedia

    en.wikipedia.org/wiki/Skilled_worker

    Skilled workers were the heart of the labor movement before World War I but during the 1920s, they lost much of their enthusiasm and the movement suffered thereby. [5] In the 20th century, in Nazi Germany, the lower class was subdivided into: agricultural workers, unskilled and semi-skilled workers, skilled craft workers, other skilled workers and

  7. Trade union - Wikipedia

    en.wikipedia.org/wiki/Trade_union

    A trade union (British English) or labor union (American English), often simply referred to as a union, is an organization of workers whose purpose is to maintain or improve the conditions of their employment, [1] such as attaining better wages and benefits, improving working conditions, improving safety standards, establishing complaint procedures, developing rules governing status of ...

  8. Labour economics - Wikipedia

    en.wikipedia.org/wiki/Labour_economics

    On the shifts in labour supply and demand, factors include demand for skilled workers going up more than the supply of skilled workers and relative to unskilled workers as well as technological changes that increase productivity; all of these things cause wages to go up for skilled labour while unskilled worker wages stay the same or decline ...

  9. EB-3 visa - Wikipedia

    en.wikipedia.org/wiki/EB-3_visa

    EB-3 is a visa preference category for United States employment-based permanent residency. It is intended for "skilled workers", "professionals", and "other workers". [1] Those are prospective immigrants who don't qualify for the EB-1 or EB-2 preferences. The EB-3 requirements are less stringent, but the backlog may be longer.