Communication valuable

The holistic thermodynamic approach based on material (charge, concentration and electron) balances is a firm and valuable tool for a choice of the best a priori conditions of chemical analyses performed in electrolytic systems. Such an approach has been already presented in a series of papers issued in recent years, see [1-4] and references cited therein. In this communication, the approach will be exemplified with electrolytic systems, with special emphasis put on the complex systems where all particular types (acid-base, redox, complexation and precipitation) of chemical equilibria occur in parallel and/or sequentially. All attainable physicochemical knowledge can be involved in calculations and none simplifying assumptions are needed. All analytical prescriptions can be followed. The approach enables all possible (from thermodynamic viewpoint) reactions to be included and all effects resulting from activation barrier(s) and incomplete set of equilibrium data presumed can be tested. The problems involved are presented on some examples of analytical systems considered lately, concerning potentiometric titrations in complex titrand + titrant systems. All calculations were done with use of iterative computer programs MATLAB and DELPHI. 

The community HAZMAT emergency response plan can be a valuable source of information in developing site-specific emergency response plans and emergency action plans as required by HAZWOPER. 

Top-level support is often most valuable when it is highly visible. Perhaps the most useful role senior management can take on behalf of PSM is to endorse it explicitly—both inside the company and externally. Senior managers active participation in communications about PSM lends cred -ibility and generates awareness of PSM as a company priority in ways that not even the most dedicated staff team can achieve. 

Even though it appears that the technology has not been adopted yet, it is expected that TOE MS will be useful to validate the power of the GC X GC separation experiment by proving the separate identities of the vast number of resolved peaks and so show that the analyst who does not use GC X GC is missing valuable chemical compositional information on their samples. In addition, it is just as significant to TOEMS that GC X GC becomes a widespread separation tool, since this will then provide a demand for the powerful capabilities of TOEMS for identification. The GC community must wait for this to be demonstrated, and those who are working in GC X GC development are convinced that the wait will be worth it ... 

The chemical engineering research frontiers of most relevance to the Department of Defense are in materials. Faster electronic devices, more reliable communication systems, and stronger structural components are all needed by DOD in order to fulfill its mission. Chemical processing is a valuable tool to tailor these materials for specific mihtary uses. 

Macromolecular Symposia, Vol. 232,1, (February 2005), pp. (1-12), ISSN 1521-3900 Ebringerova, A. Heinze, T. (2000). Xylan and xylan derivatives - Biopolymers with valuable properties, 1 - Naturally occurring xylans structures, procedures and properties.. Macromolecular Rapid Communications, Vol. 21, 9, 0une 2000), pp. (542-556), ISSN 1022-1336... 

This model of Petty Swain (1985) is advanced and is clearly a valuable tool for tree breeders and managers. However, this model is essentially based on the individual tree and still needs to account for community and ecosystem properties such as canopy streamlining by leaf and twig flexing (Cionco, 1972). In addition, considerations of bud susceptibilities to... 

We would like to express our sincere gratitude to all the authors for their valuable contribution and to the members of the Organizing Committee for sparing their valuable time and efforts to cary out the review process so successfiilly. We hope that this Proceedings may serve as noticeable references for the scientific and industrial communities in the years to come, contribute to make an overview of new developments and application in chemical reaction engineering, and allow chemical reaction engineering to make its full contribution to further advancement of respective coimtries in the Asia-Pacific region and other parts of the world. 

A spin-off of all of these task forces has been the open discussions that have led to improved design considerations and effective use of resources in the conduct of field exposure studies. These task forces have evaluated a variety of exposure measuring techniques, developed study designs for conducting studies, and performed field studies in a uniform and efficient manner. The task force protocols and designs have become models for the industry, having received valuable input and approval from the regulatory community. 

Signals that have evolved through sexual selection are either designed to attract the opposite sex, or to intimidate rivals of the same sex. Males often compete with each other for access to limited or valuable territories, food or mates, and have been shown to use signals that communicate their... 

Many unicellular eukaryotes are free-living cells, but may form huge local communities, which are especially beneficial to the homeostasis of the ocean/atmos-phere carbon cycle, e.g. coccoliths. Many others are not free-living, but are extremely valuable in symbiotic relationship with multi-cellular plants and animals. Unfortunately, some unicellular eukaryotes are the causes of disease, for example Trypanosoma, which are animals and cause sleeping sickness in humans (see Section 8.9 for parallel diseases of plants). These facts are reminders that while we consider that the whole ecosystem works to one general purpose (Section 4.4), this does not exclude the obvious feature that within its overall associations we can see diseases inflicted on one species by another or competition between similar species. Many bacteria are also causes of serious eukaryote diseases. Even so at the end of... 

Acknowledgements. We thank Professors F. Sondheimer and E. Vogel for the communication of unpublished results. We are indebted to Professor F. Sondheimer and Dr. P. J. Garratt for reading the article in manuscript and for their many valuable comments. 

At the start of this project, the Committee solicited input from the chemical sciences community. The request for input was sent via e-mail to a large number of scientists and engineers, and a general request for information appeared in Chemical Engineering News.1 The committee received many valuable ideas in response to these requests. Additional input from the broader community was obtained as the committee wrote this report, when individual members of the committee consulted with their colleagues to obtain specific and detailed technical input. The committee is pleased to acknowledge all these contributors a listing of their names and affiliations is presented in Appendix C. 

These examples show that the quantum chemical calculation of nuclear spin-spin coupling constants which has been available for the general scientific community only quite recently is an additional valuable and reliable tool for the interpretation and assignment of NMR spectra of carbocations. Taken together quantum chemical ab initio calculation of chemical shifts and nuclear spin-spin coupling constants opens the possibility for a complete simulation of NMR spectra solely based on calculated carbocation structures. 

---