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Recent applications of self-determination

Hydrogen bond (HB) networks play a relevant role on the dynamics of chemical and biochemical reactions in solution. The structure of HB network is determined by many-body energy cooperativity associated with polarization effects. Electronic density fluctuations induced by thermal effects or photoexcitation, assist and drive energy transfer processes in solution [46]. An interesting aspect related to the formation of HB networks is the role that they may have played in the origin of self-organized structures associated with life [47]. Therefore, the stmcture, dynamics and more recently, the electronic properties of these complex HB networks have been the subject of several fundamental investigations. In this section, we review recent applications of MBE decomposition schemes to the calculation of the electronic absorption spectra of liquid water and HCN. [Pg.203]

Since it was proposed in the early 1980s [6, 7], spin-relaxation has been extensively used to determine the surface-to-volume ratio of porous materials [8-10]. Pore structure has been probed by the effect on the diffusion coefficient [11, 12] and the diffusion propagator [13,14], Self-diffusion coefficient measurements as a function of diffusion time provide surface-to-volume ratio information for the early times, and tortuosity for the long times. Recent techniques of two-dimensional NMR of relaxation and diffusion [15-21] have proven particularly interesting for several applications. The development of portable NMR sensors (e.g., NMR logging devices [22] and NMR-MOUSE [23]) and novel concepts for ex situ NMR [24, 25] demonstrate the potential to extend the NMR technology to a broad application of field material testing. [Pg.341]

The reversibility of the [Os(bpy)3]3+/2+ couple makes it useful for the determination of the electron self-exchange rates of other couples by application of the Marcus cross-reaction equation. Recently, this has been applied to the oxidation of S032- to S042- (622). The new rate constant for this reaction of 1.63 x 107 M-1 sec-1 is consistent with the... [Pg.333]

Qualitative studies of this dynamic model with three variables, i.e. surface concentrations of CO and the two forms of oxygen (surface and subsurface), showed [170] the possibility of interpreting self-oscillations in this catalytic system. Recently a comprehensive analysis of this model [170] has been carried out [177], Sales et al. [178, 179] determined experimentally the parameters for the oxidation and reduction of the Pt subsurface layer. The application of these parameters and those for the CO oxidation over Pt that are close to the values measured in high-vacuum experiments, made it possible to perform the quantitative reproduction, by using the model [180], of almost the whole of the experimentally observed characteristics for the self-oscillations in the reaction rate of CO oxidation over Pt. [Pg.267]

An efficient terminator technique is certainly desirable in the application of recursion methods to the study of disordered systems. It has been shown recently that a self-consistently determined terminator can be fruitfully applied to calculate the electronic states in the Anderson model and to evaluate the vibrational spectrum of lattices with isotopic disorder. The basic idea is to extend the procedures discussed in Section IV to ensemble averages. In this case a useful generalization of Eq. (4.5), satisfied by the terminator t(E), is... [Pg.178]

Of course, classically, self-determination has been defined as the right of peoples freely to determine their political status and pursue their economic, social and cultural development.In practice, the application of this provision had been severely contextually reduced, in both its external and internal dimensions. As was noted at the outset, external self-determination in the sense of secession would appertain only to colonial peoples defined by prolonged colonial administration within uti possidetis boundaries. Internal self-determination would address both the constitutional system of public authority and the right of democratic participation in governance. However, it was simply presumed that any constitutional system and structures of governance were, merely by virtue of their existence, the product of free determination by the people concerned. Internal self-determination was therefore, until quite recently, practically irrelevant. [Pg.154]

A simple method to determine and quantify how exactly self-application of a BC was performed at the workplace was presented recently (Wigger-Alberti et al. 1997a). Using a fluorescence technique, it was... [Pg.493]


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Recent Applications

Self-determination

Self-determination, applications

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