An attempt was made to develop a computational model based on artificial neural network and ant colony optimization to estimate the composition of medium components for maximizing the productivity of Penicillin G Acylase (PGA) enzyme from Escherichia coli DH5α strain harboring the plasmid pPROPAC.
Despite the wide use of algal biomass as a feedstock to produce bioenergy, there are only a few studies that quantitatively determine the compositional distribution of carbohydrate components which affects the productivity of fermentative bioenergy.
4) There have been extensive IA events (approximately 10,000 per year within the US Forest Service alone) with which to test the model components of resource productivity and fire behavior, thus providing the opportunity to statistically validate these models (although we know of no empirical test of the IA dispatch models to date).
There is increasing evidence that interactions between plants and biotic components of the soil influence plant productivity and plant community composition.
Change in the net carbon accumulation at the landscape scale thus has two components: changes in the productivity of the individual ecosystems with environmental variations and the changes in the age-class distribution associated with landscape variation in mortality and recruitment.
As far as we know, our study was the first to look simultaneously at the relationship between three different components of lost productivity: work-status, absenteeism and presenteeism, and the combination of absenteeism and presenteeism.
The second block (B) shows the decomposition of per-capita income growth in terms of the productivity component and the translation component; see Eq. (25).
The Washington Panel distinguishes five components of lost productivity, two of which should be included in the QALY or denominator, namely I) the effects of lost productivity on the sick employee and II) the effects of lost leisure time on the sick employee.
Moreover, the relative contributions of the translation component and the productivity component are reported in the last three columns of Table 4.
Hence, since these skills and OJT are important components of multifactor productivity, this mechanism may have played a relevant role in explaining the unsatisfactory development of TFP growth in Spain and other EU countries with highly segmented labor markets (see Bassanini et al. 2009; Dolado et al. 2016).
