Construct · 3 fields · 3 citations

Where does uptake collide?

One name. Different field. Different construct. One map.

● jingle · one word, three constructs Nearest construct by meaning·not indexed
uptake3 CONSTRUCTSNutrient uptakeCHAPIN · MINERAL NUTRITIONTechnology uptakeROGERS · ADOPTIONCellular uptakeGUYTON & HALL · TRANSPORT

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1980Nutrient uptake2003Technology uptake2015Cellular uptake
2026

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Plant & ecosystem ecology

Roots acquiring mineral nutrients

In plant and ecosystem ecology, uptake is the acquisition of mineral nutrients (nitrogen, phosphorus, and others) from the soil by plant roots, a rate shaped by nutrient supply, root traits, and demand. Chapin's 1980 review of the mineral nutrition of wild plants synthesised how plants take up and use scarce nutrients. The referent is the rate at which an organism draws a substance in from its environment, closely akin to cellular uptake in physiology but a different construct from the social spread of an innovation.[1]

Unit
The rate at which a nutrient is acquired from the soil per unit root or plant
Recovery means
Not applicable
Measured by
Measured with labelled tracers, depletion of nutrient solutions, and uptake-kinetics parameters

Diffusion of innovations

How widely an innovation is adopted

In the study of innovation diffusion, uptake is the extent and speed with which members of a social system adopt a new product, practice, or technology over time. Rogers's Diffusion of innovations models this adoption as it spreads through a population. The referent is a social adoption process measured as a cumulative or rate curve across people, a genuinely different construct from a cell or a root absorbing a substance, which the shared word “uptake” can disguise.[2]

Unit
The share of a population that has adopted, and the rate of adoption over time
Recovery means
Not applicable
Measured by
Tracked by adoption counts and rates over time, often an S-shaped cumulative curve

Cell physiology

A substance transported into cells

In cell physiology and biochemistry, uptake is the transport of a substance (glucose, an ion, a drug) from the extracellular space across the membrane into the cell, by diffusion or by carrier- and pump-mediated transport. Guyton and Hall's Textbook of medical physiology describes these membrane transport mechanisms. The referent is the movement of a substance into a cell, measured as a transport rate; it is the same absorptive idea as a plant root taking up nutrients, and a different construct from the social adoption that the word also names.[3]

Unit
The rate at which a substance is transported into the cell
Recovery means
Not applicable
Measured by
Measured with labelled substrates and transport-kinetics parameters such as maximal rate and affinity

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Nearby collisions

availability2 fields · 2 citationsjingle · one word, two constructsdiffusion of innovations1 fields · 3 citationsanchor · a standalone constructinnovation6 fields · 11 citationsjingle · one name, six constructs

References

  1. Chapin, F. S., III. (1980). The mineral nutrition of wild plants. Annual Review of Ecology and Systematics, 11, 233–260. https://doi.org/10.1146/annurev.es.11.110180.001313
  2. Rogers, E. M. (2003). Diffusion of innovations (5th ed.). Free Press. ISBN 9780743222099
  3. Hall, J. E. (2015). Guyton and Hall textbook of medical physiology (13th ed.). Elsevier. ISBN 9781455770052

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