Lag values from microscopy and Bioscreen are related by the equation: tLag = tL + DT (where DT = doubling time). Individual lag times measured by both methods were normally distributed.;A further investigation on the effect of low pH values (pH 6, pH 5.5 and pH 5) was undertaken using...
increased use of antibiotic treatments has led to the propagation of antibiotic resistance genes by horizontal gene transfer or the selection of vertically transmitted mutations. This global increase in antibiotic resistant bacteria, particularly in pathogenic strains resistant to treatment...
The second derivative of the logistic growth curve shows growth acceleration with respect to time (bottom panel). b Expected relationships between abundance and growth rate at different locations along the logistic growth curve. Full size image The logistic growth model is a deterministic equation. ...
The cell population doubling time was calculated from the growth rate during exponential growing phase using the following equation: doubling time (in hours) = h*ln(2)/ln(c2/c1) where c1 is the initial concentration and c2 is the concentration when cultures reached maximum densities. ...
The doubling time of many bacterial cells is very short. Errors created in performing those dilutions and baseline corrections can take longer that the doubling time of bacterial cells and can significantly affect calculated sample optical density. The SoloVPE is the laboratory implementation of C ...
Simplifying the above equation and approximating A=2rL. Here A is the cell area output from BACMMAN.ρ=24L(L2+A)A(3L2−A) Elongation rate The instantaneous elongation rate was calculated based on the log-difference in cell length between consecutive frames as log(Lt)−log(Lt−Δt)Δ...
compare the metagenomic abundance of co-occurring ARGs on the same metagenome-assembled contigs. The RPKMs were calculated for each gene using thepileupfunction from BBTools package (BBMap—Bushnell B.—sourceforge.net/projects/bbmap/) and then transformed these values using the following equation: ...
Then, we consider a more realistic model by solving the complete Helfrich equation49 including the possibility of a pulling force on the neck, e.g. due to DNA translocation through the SpoIIIE motor. For this more realistic model, the shape of the membrane neck is obtained as part of the...
equation is generally used to Recently, the invasion speed describe of ciliate Tetrahymena cells has been measured in experiments in a liquid habitat showing a good agreement within the FKPP framework, with the population expansion described in terms of diffusive motility and doubling dynamics14. ...
percent of the population, reflecting close to balanced growth (Fig.3). Here, criteria for inferring mass doubling time (τ) fromori:terwere met, and τ was computed from equation (2) as (median (IQR)) 23.4 (21.5–29.9) minutes (assuming a constant C period of 40 minutes)25. ...