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Pioneer released the LaserActive model CLD-A100 in Japan on August 20, 1993, at a cost of ¥89,800, and in the United States on September 13, 1993, at a cost of $970. An NEC-branded version of the LaserActive player known as the LD-ROM² System , or model PCE-LD1 , was released in December 1993, which was priced identically to the original ...
Various aspects of public health: From top to bottom: Community health worker in Mali, vaccination example (COVID-19 vaccination in Germany), historical sewer installation photo from the United States, anti-smoking campaign in India. Part of a series on Public health Outline Subfields Community health Dental public health Environmental health Epidemiology Health economics Health education ...
Most of the common uses of poloxamer 407 are related to its surfactant properties. For example, it is widely used in cosmetics for dissolving oily ingredients in water.It can also be found in multi-purpose contact lens cleaning solutions, where its purpose there is to help remove lipid films from the lens.
Positive-displacement (PD) meters can measure both liquids and gases. Like turbine meters, PD flow meters work best with clean, non-corrosive, and non-erosive liquids and gases, although some models will tolerate some impurities. Because of their high accuracy, PD meters are widely used at residences to measure the amount of gas or water used.
An open PDP-8/E with its logic modules behind the front panel and one dual TU56 DECtape drive at the top A "Straight-8" running at the Stuttgart Computer Museum. The earliest PDP-8 model, informally known as a "Straight-8", was introduced on 22 March 1965 priced at $18,500 [3] (equivalent to about $178,900 in 2023 [4]).