Active

(redirected from active transport)
Also found in: Dictionary, Thesaurus, Medical, Legal, Encyclopedia, Wikipedia.

Active

A market in which there is frequent trading.

Active

1. Describing a security that is traded with relative frequency. Many investors look to active securities because they can be traded, even in rather large quantities, without affecting the price. Active securities usually have a low bid-ask spread.

2. Describing a market or exchange with a high trading volume.

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.
References in periodicals archive ?
Reinforcement of green infrastructure may also facilitate PA engagement (i.e., active transport) because exercise in green spaces is associated with higher-intensity exercising and increased enjoyment (Gladwell et al.
Proposed mechanisms include disruption of the TRPM-6/ 7--mediated active transport of dietary magnesium across the apical membrane of the intestine due to a decrease in the luminal hydrogen ion concentration as a result of proton pump inhibition, or impaired passive magnesium absorption across the intercellular junctions (3).
We need to do more active transport, reduce sitting and television time and incorporate active play into everyday life.
Thus, plasma membrane regulates the transport of molecules into and out of the cell by simple diffusion and active transport (Figure 4).
We've also entered into some exciting technology partnerships that enable us to integrate mobile computing, electronic proof of delivery and in-vehicle camera technology with our Active Transport Management System (ATMS)," says Megan Turner.
In plant membrane transport, active transport of [H.sup.+] forms the driving force for other ion fluxes (including [Zn.sup.++] and [Cd.sup.++]), therefore, in this initial report of our on-going study, we describe a comparison of [H.sup.+] fluxes associated with roots of A.
Despite these known benefits of active transport, in the United States, rates of AC remain low (3% reporting walking to work, <1% report biking to work), especially in comparison to other countries (e.g., The Netherlands: 25% of trips are made by bicycle) [27-29].
People in large urban areas are more likely to use active transport, and people in rural areas or small towns are more likely to report walking frequently.
* Specific policies that can reduce greenhouse-gas emissions and result in health benefits include increased active transport (walking and cycling) and generation of electricity from renewable or other low-carbon sources rather than from fossil fuels, particularly coal.
It regulates corneal hydration by various active transport mechanisms, causing water flow from out of the stroma into the anterior chamber.
We hope tax incentives for infrastructure projects will result in substantially more investment in public and active transport.
In addition to the traditional N+1 protection, where one standby radio channel is used to protect up to seven active transport channels, the IP architecture of the WTM 6000 now enables the option for bonding of multiple radio channels together, using Ethernet Link Aggregation, to provide full wire-speed Gigabit throughputs.