Flexibility dynamic

RI and FS are interdependent processes and are generally performed concurrently rather than sequentially, although the FS uses the data provided by the RI. This approach should be viewed as a dynamic, flexible process that can and should be tailored to specific circumstances of individual sites. It is not a rigid step-by-step approach that must be conducted identically at every site. Figure 16.3 illustrates a generic timeline of the phasing of RI/PS activities. 

The authors believe that electron exchange occurs at every intramolecular collision . Thus, their work should provide the first quantitative measurements of the frequency of intramolecular collision between end-groups attached to flexible chains. According to these authors such frequency reflects an intrinsic property of chain molecules, referred to as the dynamic flexibility, which is a measure of the rate of conformational change. It should be distinguished from the static flexibility, which depends on the multitude of... 

Kramer DM, Avenson TJ, Edwards GE (2004) Dynamic flexibility in the light reactions of photosynthesis governed by both electron and proton transfer reactions. Trends Plant... 

Proteins are therefore dynamic, flexible objects whose physical and chemical properties are dominated, not only by their conformation, but also by the continual changes in conformation which are a consequence of their microscopic size22). The marginal stability of most protein conformations suggests that processes at one point in the protein might well have an effect on a portion of the molecule far removed. 

The calculations also predict that polysilane should have a higher equilibrium flexibility than polyethylene,178 and solution characterization techniques could be used to test this expectation. Dynamic flexibility can also be estimated from such energy maps, by determining the barriers between energy minima. Relevant experimental results could be obtained by a variety of dynamic techniques.179... 

The crystalline state configuration of polymeric selenium is a helix in which all the rotational angles are of the same sign with a value of 78°. This is fairly close to the expected value of 90°.52 The barrier to rotation about the Se-Se bond is thought to be roughly the same as that about S-S bonds. No reliable experimental results are available on the statistical properties of these chains. Some values of the glass-transition temperature of polymeric selenium have been reported15 and these could at least provide a measure of the dynamic flexibility of the chains. However, these results are probably compromised by the presence of cyclic selenium molecules that act as plasticizer. 

Baker (268) compared the responses of volunteers to EA 3580 administered as a dose per man or as a dose per unit of body weight. Four Indicators of effect were used accommodation for near vision, arm-hand steadiness, dynamic flexibility, and manual dexterity The general conclusion was that the use of the dose per unit of body weight may Increase variance, rather than control for extraneous sources of variation, when the purpose of a study is to establish the effects of a substance Itself The use of multiple-regression equations was suggested as an approach to the establishment of definitive Information on effects of chemicals. 

High static and dynamic flexibility of the polysiloxane chain, associated with a very low energy barrier to rotation around their skeletal bonds and a low energy of deformation of the SiOSi bond angle, make the polymer soluble in many solvents. The catalyst attached to such a mobile polymer chain, which can adopt many conformations, is available for the interaction with reactants in a... 

Remember that proteins (and other biological macromolecules) are quite dynamic, flexible molecules. Even at equilibrium, and just like all chemical equilibrium processes, this equilibrium is dynamic, since thermal motion never stops. For a two-state process, the exchange kinetics may be described by ... 

Sample C-value coefficient Dynamic flexibility module ... 

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