Feeling

At point A, despite full management commitment to safety performance, with low employee commitment to safety, the number of accidents remains high employees only follow procedures laid out because they feel they have to. At the other extreme, point B, when employee commitment is high, the number of accidents reduces dramatically employees feel responsible for their own safety as well as that of their colleagues. Employee commitment to safety is an attitude of mind rather than a taught discipline, and can be enhanced by training and (less effectively) incentive schemes. 

A large percentage of eddy-current inspections are conducted in the field, away from the home base and often in remote or inaccessible locations. Using local telephone lines or mobile phone lines would allow the inspector to beam his data back to the office. In this way highly qualified personnel can be consulted when problems or difficult to interpret results occur. Inspectors no longer need to feel isolated on site. 

At this point the reader may feel that we have done little in the way of explaining molecular synnnetry. All we have done is to state basic results, nonnally treated in introductory courses on quantum mechanics, connected with the fact that it is possible to find a complete set of simultaneous eigenfiinctions for two or more commuting operators. However, as we shall see in section Al.4.3.2. the fact that the molecular Hamiltonian //coimmites with and F is intimately coimected to the fact that //commutes with (or, equivalently, is invariant to) any rotation of the molecule about a space-fixed axis passing tlirough the centre of mass of the molecule. As stated above, an operation that leaves the Hamiltonian invariant is a symmetry operation of the Hamiltonian. The infinite set of all possible rotations of the... 

When an atom or molecule approaches a surface, it feels an attractive force. The interaction potential between the atom or molecule and the surface, which depends on the distance between the molecule and the surface and on the lateral position above the surface, detemiines the strength of this force. The incoming molecule feels this potential, and upon adsorption becomes trapped near the minimum m the well. Often the molecule has to overcome an activation barrier, before adsorption can occur. 

Many methods have been developed to detemrine surface structure we have mentioned several in the previous section and there are many more. To get an idea of their relative usage and importance, we here examine historical statistics. We also review the kinds of surface structure drat have been studied to date, which gives a feeling for the kinds of surface structures tliat current methods and technology can most easily solve. This will provide an overview of the range of surfaces for which detailed surface structures are known, and those for which very little is known. 

This chapter centers on the mathematical aspects of the non-adiabatic coupling terms as single entities or when grouped in matrices, but were it not for the available ab initio calculation, it would have been almost impossible to proceed thus far in this study. Here, the ab initio results play the same crucial role that experimental results would play in general, and therefore the author feels that it is now appropriate for him to express his appreciation to the groups and individuals who developed the numerical means that led to the necessary numerical outcomes. 

It is assumed that the reader has previously learned, in undergraduate inorganie or physieal ehemistry elasses, how symmetry arises in moleeular shapes and struetures and what symmetry elements are (e.g., planes, axes of rotation, eenters of inversion, ete.). For the reader who feels, after reading this appendix, that additional baekground is needed, the texts by Cotton and EWK, as well as most physieal ehemistry texts ean be eonsulted. We review and teaeh here only that material that is of direet applieation to symmetry analysis of moleeular orbitals and vibrations and rotations of moleeules. We use a speeifie example, the ammonia moleeule, to introduee and illustrate the important aspeets of point group symmetry. 

In summary, solvents can influence Diels-Alder reactions through a multitude of different interactions, of which the contributions to fire overall rate uniquely depend on the particular solvent-diene-dienophile combination. Scientists usually feel uncomfortable about such a situation and try to extract generalities. When limited to the most extensively studied type A Diels-Alder reactions this approach seems feasible. These Diels-Alder reactions are dominated by hydrogen bonding interactions in combination with solvophobic interactions. This observation predicts a very special role of water as a solvent for type A Diels-Alder reactions, which is described in Section 1.4. 

I would like to thank Andrew, Lana, Brenda and Brent for making me feel part of the group and for many practical things during my stay in Halifax. I also owe much to Mike Lumsden, who solved many of the communication problems between me and the Bruker NMR apparatus. 

I considered my role mainly to try to help my colleagnes while jealonsly safegnarding most of my time for research and scholarship. I proceeded in the same way in Cleveland and later in Los Angeles, when starting the Hydrocarbon Research Institute at USC. 1 have been fortunate never to have been bitten by the bug that makes many people feel important by exercising administrative power. ... 

It is frequently said that the scientific career of professors is made by their students and associates who de facto carry out their joint research. I am no exception. However, I first had to create my own little research enclave with an atmosphere and spirit conducive to carrying out our work. I also feel that I was able to motivate my students, to bring out from them talents and efforts that sometimes surprised even them. It was a most rewarding experience to see that most of my students, when they became interested and motivated, achieved much and turned themselves into excellent, productive, and increasingly independent researchers. 

---