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active
(redirected from active transport)

    Also found in: Dictionary/thesaurus, Medical, Legal, Encyclopedia, Wikipedia, Hutchinson 0.07 sec.
Active
A market in which there is frequent trading.
active
Of or relating to a security in which there is a great deal of trading. Active securities appeal to many investors because they usually can be traded without affecting the price. In over-the-counter trading, an active security usually has a smaller spread between the bid and ask price. See also most-active stocks.
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? Mentioned in ? References in periodicals archive
 
This finding was consistent with an active transport mechanism across the placenta.
Transplacental chikungunya virus antibody kinetics, Thailand by Nisalak, Ananda / Emerging Infectious Diseases
Others have suggested that nitrate or the reduced form (nitrite) may pass to the fetus through a system of active transport similar to that of iodide, and fetal nitrate plasma levels may exceed that of the mother (Hartman 1982).
A review of nitrates in drinking water: maternal exposure and adverse ... by Moll, Deborah M. / Environmental Health Perspectives
Interestingly, from a separate questionnaire sent home for parents to complete, the majority of parents (77%) stated they either walked or cycled to school themselves as 10-year-olds, indicating a substantial decrease in active transport in only one generation.
Barriers to physical activity in young New Zealanders by Ross, Jenny J. / Youth Studies Australia
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