Complex absorption potential

N. Moiseyev, Derivations of universal exact complex absorption potentials by the generalized complex coordinate method, J. Phys. B At. Mol. Opt. Phys. 31 (7) (1998) 1431. 

From Eqs. (12 and 13), to computational methods such as the CESE, the exterior complex scaling and the complex absorption potential methods... 

A method which attempts to take into account the effects of the form (14b) via brute-force diagonalization is the "complex absorption potential" (CAP) method [193]. In essence, in this method, the complex quantity K re ) of Eq. (14b) is replaced by an artificial complex function, such as /jSr , acting mainly in the outer region of space (fi is an adjustable parameter). The papers [193] also discuss the connection between the CAP and the ECS methods, the essence of which is in harmony with that ofEq. (14). 

N. Moiseyev,/. Phys. B, 31, 1431—1441 (1998). Derivations of Universal Exact Complex Absorption Potentials by the Generalized Complex Coordinate Method. 

In reviewing the pH-partition hypothesis, it is apparent that it is an oversimplification of a very complex process. It does not consider one of the critical physicochemical factors, solubility. Low aqueous solubility is often the cause of the low bioavailability. To address this issue, Dressman et al. [28] developed an absorption potential concept that takes into account not only the partition coefficient but also solubility and dose. Using a dimensional analysis approach, the following simple equation was proposed ... 

On the other hand, we sometimes discuss the Schrodinger equation without an absorption potential, for example, the Coulomb few-body Schrodinger equation with the Hamiltonian (3), assuming the energy to take complex values. This is analytic continuation of the quantal problem into fake, complex energies. This way, we depart from what actually occurs in nature for real energies. By regarding the nature as a special... 

The Ea from half-wave reduction potential measurements and energies of charge transfer complex absorption in solution support the gas phase measurements from all the cited techniques. The major difference between the gas phase measurements and the solution or solid phase measurements is the interaction between the solvents or solid phase and the anions. These measurements provide a transition between the low values of valence-state electron affinities measured in the gas phase and the negative valence-state electron affinities. Thus, the valence electron affinities for naphthalene and pyridine are 0.17 eV and 0.0 0.2 eV by solution phase techniques [39, 77]. 

The tris(diimine)Ru(II) complexes are potential mediators in the conversion of solar energy to chemical energy via electron-transfer mechanisms (see 13.4). Their spectra display intense visible-range absorption bands and the relative long lifetimes of the lowest-energy ES, MLCT in character, allow efficient bimolecular energy and electron-transfer processes in solution. The photolability of certain bis(diimine)Ru(II) complexes is of synthetic utility ... 

Another method of delivery of insulin is to conjugate the protein with transferrin. Oral administration of the insulin-transferrin complex and insulin in streptozotocin-induced diabetic mice lowered the blood glucose levels by 28 and 5%, respectively. The blood glucose level was further decreased to 40% when the mice were pretreated with brefeldin A, a fungal metabolite, before the administration of the insulin-transferrin complex. The potentiation by brefeldin A indicated that insulin absorption could be accomplished through a transferrin receptor-mediated transcytosis in the intestinal wall. 

Photosystem II Inhibitors. The PSII complex usually is assumed to be that stmctural entity capable of light absorption, water oxidation, plastoquiaone reduction, and generation of transmembrane charge asymmetry and the chemical potential of hydrogen ions (41). The typical PSII complex... 

The absorption of sulfonylureas from the upper gastrointestinal tract is faidy rapid and complete. The agents are transported in the blood as protein-bound complexes. As they are released from protein-binding sites, the free (unbound) form becomes available for diffusion into tissues and to sites of action. Specific receptors are present on pancreatic islet P-ceU surfaces which bind sulfonylureas with high affinity. Binding of sulfonylureas to these receptors appears to be coupled to an ATP-sensitive channel to stimulate insulin secretion. These agents may also potentiate insulin-stimulated glucose transport in adipose tissue and skeletal muscle. 

In galvanic coupling, titanium is usually the cathode metal and consequently not attacked. The galvanic potential in flowing seawater in relation to other metals is shown in Table 10. Because titanium is a cathode metal, hydrogen absorption may be of concern, as it occurs with titanium complexed to iron (38). 

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