Many of these approaches do not self-identify as "positivist", some because they themselves arose in opposition to older forms of positivism, and some because the label has over time become a term of abuse by being mistakenly linked with a theoretical empiricism.
The rapid removal of surface label with TCEP led us to use this assay to quantify uptake of labeled receptor over time.
In order to assess overall function of the entire 1-butanol synthetic pathway, assays were carried out using cell extracts of ethylamine-grown wild-type and BHB7 strains incubated with C-labeled acetyl-CoA, NADPH, and NADH, measuring the accumulation of labeled intermediates over time.
By varying the duration of BrdU administration, it was possible to plot the number of labeled cells over time and determine a rate of cellular proliferation.
We modeled the LRC data of Figure 2 by a system of coupled Ordinary Differential Equations (ODEs) that describe the rate of change of the number of BrdU labeled cells over time.
A representative series of time-lapse images shown in Figure 5A illustrates how vHMEC outgrew labeled HMEC over time, as vHMEC could not express p16 and thus would not undergo stasis.
First, WT and ΔrimP cells were pulse-labeled over a time-course at mid-log phase and the 30S particles and 70S ribosomes were purified and analyzed by qMS.
This person's entire life stays on the 100 lifespan line (labelled), descending over time towards thanatological age 0 at the base.
In this work, we introduce two intuitive and general metrics to allow for objective comparison of tracker characteristics, focusing on their precision in estimating object locations, their accuracy in recognizing object configurations and their ability to consistently label objects over time.
In contrast, the intensity of labeling diminished over time in the area occupied by midgut tissues and was no longer detectable by 96 hrs after electroporation.
