The phrase "a extended model" is not correct in English.
It should be "an extended model." You can use the correct phrase when referring to a model that has been expanded or elaborated upon in some way.
Example: "The researchers presented an extended model to better explain the complex interactions within the ecosystem."
Alternatives: "a comprehensive model" or "an elaborated model."
As a result, an extended model of X73PHD is proposed, preserving its essential features while extending them with added value.
In the following two subsections, we describe a Basic Model and an Extended Model with other assumptions about decision making.
However, the concept is still useful as a theoretical construct in modelling systems driven by colored noise, as it allows an extended model with a white noise input.
We performed sensitivity analyses to explore the robustness of the models by using a more parsimonious and an extended model.
In the paper [6], the authors show an (mathcal{O}(n)) time algorithm that includes new intervals into a proper interval model I of a connected graph G, constructing an extended model I′ containing I.
Although our sample size was not comparable to that of larger epidemiological studies, a major strength of our study was the use of DEXA in an extended model, which is a very accurate technique to measure abdominal adiposity (9).
The financial impact of physical investments on the cash flows is taken into account in an extended model with an objective function that minimizes the NPV of costs and investment expenditures.
In a small sample situation we have to explicitly declare step 2 as not sufficient, as an extended model with an increased number of parameters might be seen as "overkill", however necessary to reveal characteristics of the questionnaire.
Additionally, a likelihood-ratio-test conducted on the Cox regression, considering a null model with the sole GSS and an extended model with all covariates, reported a consistently worse fit of the null model as compared to the extended model (Lnull = -7573.536, Lextended = -7361.47, χ2 = 424.13 on 41 degrees of freedom, p < 0.0001).
In this version of the model, we did not include release sites since this would introduce an extra fit parameter, whereas such an extended model is mathematically equivalent (if immediate availability and recycling of release sites is assumed; see below).
