Discussion and concluding remarks

The acoustic diffuse scattering is centred at the Bragg positions and can constitute a significant source of errors in integrated intensity measurements. The characteristic fine collimation of SR can be exploited in the collection of data to minimise the acoustic scattering contribu- 

From even the limited number of patterns presented here, it is clear 

These various observations suggest that the continuous diffuse scattering is a potentially useful source of unique dynamic information regarding correlated atomic displacements in a crystal. 

The use of the high intensity of SR to measure the weak diffuse scattering and the collimation to exclude the Bragg peaks opens up the possibility of routinely being able to gather the necessary experimental data for detailed analysis of molecular mobility and flexibility. Work here is at a relatively early stage. 

Recently, Diamond (1990) has published a theoretical analysis of vibrations in crystals of BPTI (bovine pancreatic trypsin inhibitor). In this study (see figures 8.9(a)-(c)) he is able to separate contributions of intra- and intermolecular mobility (lattice vibrations and disorder) to 

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This chapter starts with a brief summary of the old and novel experimental investigations on KDP-type ferroelectrics that are most relevant for the discussion of the present topic. A brief history of theoretical models for KDP, development of the SDPC and MSDPC models, and appUed munerical methods are described in Sect. 3. The most important results of the MSDPC model are presented and discussed in Sect. 4, whereas comments about the model and concluding remarks are given in Sect. 5. 

This paper starts by briefly discussing some of the existing CRS-based approaches and how they can be evaluated. The description of the new method, which is based on ideas from the existing approaches, is then followed by details of its development. Subsequently, an evaluation of the effectiveness of the proposed method is presented. This evaluation depends on final examination results, student feedback and CRS software output. The paper concludes with some discussion and conclusion remarks. 

This paper is organized as follows. In Section 2, previous studies related to the multitasking are presented. The details of the proposed design for the experiment are described in Section 3. The procedure of the experiment and the results of the experiment are discussed in Section 4 and Section 5 respectively. In Section 6, the evaluation of the experiment is discussed. The concluding remarks and future works are noted in Section 7. 

Concluding remarks include a summarizing discussion and an outline of possible future studies of partly quenched systems that are, in our opinion, of interest. 

In this contribution, we review our recent work on disordered quasi-one-dimen-sional Peierls systems. In Section 3-2, we introduce the basic models and concepts. In Section 3-3, we discuss the localized electron stales in the FGM, while, in Section 3-4, we allow for lattice relaxation, leading to disorder-induced solitons. Finally, Section 3-5 contains the concluding remarks. 

It is our purpose in this review to present a brief summary of some of the main results from the applications of our FOIST based approach to selective control of photodissociation. The formal and computational considerations of this method are summarised in section 2 and in section 3, we discuss some representative results from our applications. Some concluding remarks summarising the main results and avenues for further research are collected in section 4. 

Section II discusses the real wave packet propagation method we have found useful for the description of several three- and four-atom problems. As with many other wave packet or time-dependent quantum mechanical methods, as well as iterative diagonalization procedures for time-independent problems, repeated actions of a Hamiltonian matrix on a vector represent the major computational bottleneck of the method. Section III discusses relevant issues concerning the efficient numerical representation of the wave packet and the action of the Hamiltonian matrix on a vector in four-atom dynamics problems. Similar considerations apply to problems with fewer or more atoms. Problems involving four or more atoms can be computationally very taxing. Modern (parallel) computer architectures can be exploited to reduce the physical time to solution and Section IV discusses some parallel algorithms we have developed. Section V presents our concluding remarks. 

An introduction to the non-covalent forces operating in stable ionic and molecular aggregates will be presented in Section 2. A brief description of the experimental methodologies employed in the production, detection, and characterization of clusters will be given in Section 3. The available experimental evidence on the structure of chiral clusters and their intrinsic stability, reactivity, and evolution dynamics will be presented and discussed in Sections 4 (molecular clusters) and 5 (ionic clusters). In the same sections, the experimental data will be interpreted in the light of the available theoretical evidence. Finally, some concluding remarks will be expressed in Section 6. 

Second, the mapping approach to nonadiabatic quantum dynamics is reviewed in Sections VI-VII. Based on an exact quantum-mechanical formulation, this approach allows us in several aspects to go beyond the scope of standard mixed quantum-classical methods. In particular, we study the classical phase space of a nonadiabatic system (including the discussion of vibronic periodic orbits) and the semiclassical description of nonadiabatic quantum mechanics via initial-value representations of the semiclassical propagator. The semiclassical spin-coherent state method and its close relation to the mapping approach is discussed in Section IX. Section X summarizes our results and concludes with some general remarks. 

The text is organized as follows. Next section contains a brief review on robust temperature control of complex chemical systems. Alkylation system is presented in third section. Problem statement is discussed in fourth section. Temperature control is analyzed in fifth section. Controller performance and tuning rules are shown in sixth section. The paper is closed with some concluding remarks. 

Some of the main examples of biological rhythms of nonelectrical nature are discussed below, among which are glycolytic oscillations (Section III), oscillations and waves of cytosolic Ca + (Section IV), cAMP oscillations that underlie pulsatile intercellular communication in Dictyostelium amoebae (Section V), circadian rhythms (Section VI), and the cell cycle clock (Section VII). Section VIII is devoted to some recently discovered cellular rhythms. The transition from simple periodic behavior to complex oscillations including bursting and chaos is briefly dealt with in Section IX. Concluding remarks are presented in Section X. 

In the sections that follow, the metabolism of the various purine analogues is presented first, followed by a discussion of the current status of our knowledge about the mechanism of action of these compounds. Next the distribution and effects of these drugs on the host and invading organisms is considered with some concluding remarks on the ever present problem of resistance. 

Some 40 years later we basically stand in awe when reading those matter-of-facdy spoken but definitely at that time prophetic words from Dr. Mirsky. Already in 1950 Stedman had discussed the role of histones in differentiation [2] and in 1964 Allfrey reported on the acetylation of histones [3]. The words of Mirsky are the concluding remarks of a Ciba Foundation symposium on histones and their role in transfer of genetic information. There it was discussed that chromatin represents a. .. metabolically active region of the nucleus (p. 48). Many fine bands had been resolved in electrophoretic analysis of the histones but of course many details of the processes involved totally eluded the scientific knowledge of these days. But already then, a functional correlation between histone acetylation and the RNA-synthetic capacity of the chromatin was suggested. 

Lists are commonly used in research proposals (not journal articles) to (1) identify project objectives and goals and (2) describe proposed methods. Lists are often used in posters to describe methods and procedures, summarize results, discuss findings, and offer concluding remarks. When used, lists need to be formatted in a parallel fashion. The following components of each list must be parallel ... 

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