Activity Role Model

Activity Role Model (ARM) - a simple outline of the people involved and what they are doing, a simple form of task decomposition (Kirwan and Ainsworth, 1992 95). 

Activity-Role Model Spatial Layout Model... 

When enrichment episodes occur in the real world, but not in the laboratory under federal certification tests, real-world emissions are significantly higher than predicted. Further complicating emissions prediction is that aggressive driver behavior and complex traffic flow characteristics play a large role in enrichment occurrence. Current vehicle activity simulation models can predict average speeds and traffic volumes very well, but poorly predict the hard-accel-eration events that lead to enrichment. 

The learning process involves many students"activities Students interest increased because they liked playing an active role in the learning process (e.g. hands on experiments, constraction of representations of chemical reactions with the use of models). Those who were not used to such an approach from earlier teaching also improved their experimental skills and gained experiences through the work with models. In the reflective diaries of all the teachers, statements to support this point could be found as follows ... 

This surprising results implies that water is not just a medium for transporting products on the catalytic sites but has an active role in determining the peroxo/hydroperoxo species present on the working catalyst. Scheme 3 summarizes the model hypothesized by Prestipino et al. [50] on the basis of the whole set of experiments reported by Bonino et al. [49] and by them selves [50], and here reviewed in Fig. 10. 

These mechanistic possibilities, which give such an active role for the diazo group, are summarized in Fig. 20 using the model compound 9-diazo-fluorene 18. 

Currently suggested models for tunneling increasingly invoke protein dynamics . These models envision either a series of conformational fluctuations that lead to a suitable tunnehng configuration ( passive dynamics ) or a more active role... 

Fujitani and Nakamura proposed the Cu-Zn active-site model.23-26 According to this model, the role of the Cu-Zn site is to activate the hydrogenation of the formate species. It is known that formate can form directly from C02 and H2.27 Originally the active site was suggested to be the Cu-O-Zn site but it was changed because of the results of surface science studies. ... 

According to this mechanism the Co(II) of the B12r formed in Eq. 16-35 has no active role in the isomerization and does not form an organocobalt intermediate as in Eq. 16-36. Its only role is to be available to recombine with the 5 -deoxyadenosyl radical at the end of the reaction sequence. Support for this interpretation has been obtained from study of model reactions and of organic radicals generated in other ways.400... 

Outside of the Ga subunit, two models for receptor-mediated GDP release involve an active role for the G/]y subunit (Fig. 7). These models are based on the hypothesis that Gfiy functions in heterotrimeric G proteins as a structural homologue to the guanine nucleotide exchange factors for... 

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