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interaction |
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interaction [¦in·tə¦rak·shən] (fluid mechanics) With respect to wave components, the nonlinear action by which properties of fluid flow (such as momentum, energy, vorticity), are transferred from one portion of the wave spectrum to another, or viewed in another manner, between eddies of different size-scales. (physics) A process in which two or more bodies exert mutual forces on each other. (statistics) The phenomenon which causes the response to applying two treatments not to be the simple sum of the responses to each treatment. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| There was significant statistical interaction between chicken sales and minor poultry sales as the 2 trends closely tracked each other (online Appendix Figure 1). Likelihood ratio tests were used to evaluate statistical interaction by comparing models with and without cross-product terms between DES exposure and covariates of interest. The statistical interaction terms added to these models were setting by age, sett ing by child care center, and setting by age group by child care center. |
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