Evolution complex evolving systems

During the course of evolution an efficient system has evolved that enables the functions of individual organs to be orchestrated in increasingly complex life forms and permits rapid adaptation to alterations in a changing environment. This regulatory system is composed of a number of major anatomical divisions. These include the... 

The complexity of an evolving system is the number of incomparable things in it at that point in its evolution. 

The above results imply that DCMU-type inhibitors (Group 1), have one site of action on or near the B-protein" complex that is located upon the external surface of the photosynthetic membrane. They specifically bind (non-specific binding is not taken into account) to this protein. On the other hand, ioxynil and i-dinoseb (Group 2) seem to affect another site of action on the O2 evolving system. This is located presumably on the inside of the thylakoid membrane. These two inhibitors do not lose their inhibitory potency towards electron transport because a part of their activity lies in an area that is not easily accessible to trypsin. The Group 2 inhibitors also inhibit silicomolybdate-mediated O2 evolution (data not shown). This reaction is essentially insensitive to DCMU (18) and DCMU-like inhibitors (, 16). 

To handle the complex reactive process, we first focus on the dynamics on the Si surface to study how the system evolves towards the conical intersections. Therefore we introduce a reduced set of reactive coordinates, develop the corresponding Hamiltonian and study the time evolution of the system by means of wavepacket propagations on the calculated ah initio potential reaction surface. In the following steps, we include the nonadiabatic coupling elements as well as the laser-molecule interaction to describe the complete relaxation process. The final aim is to drive the reaction systematically through either one or the other of the two conical intersections and thus to influence the resulting product distribution. 

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