Questions for the reader

Do you accept the view that life on Earth originated from inanimate matter without any contribution from transcendent power  

Do you accept the ideathat biological evolution is mostly shaped by contingency If not, what would you add to this picture  

Are you at peace with the idea that mankind might not have existed and with the idea that we may be alone in the universe  

Do you accept the idea that a rose is made up only by molecules and nothing else  

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The bottle neck macromolecular sequences Questions for the reader... 

Conclusions are distinct from the summary and to understand them, we recognize that they answer a critical question for the reader ... 

In order to make the mathematics tractable, approximations must be made. The choice of approximations has produced a variety of MO methods, the judicious application of which can provide valuable insight into questions of bonding, structure, dynamics, and reactivity. The discussion that follows will not be sufficiently detailed or complete for the reader to understand how the calculations are performed or the details of the approximations. Instead, the nature of the information that is obtained will be described, and the ways in which organic chemists have applied the results of MO theoiy will be illustrated. Several excellent books are available which provide detailed treatment of various aspects of MO methods. 

Stand the text. That is, I want them to focus on The Whyoi each problem so they will develop a feeling for the behavior of composite materials and structures. I also expect use of appropriate figures that are well discussed. Figures that have not been fully interpreted for the reader are of questionable value and certainly leave room for misinterpretation. Also, I expect students to explain and describe each step in the problem-solving process with physically based reasons and explanations. Moreover, 1 expect observations, comments, and conclusions about what they learned at the end of each problem. I feel such requirements are good training for survival in today s and tomorrow s more competitive world. 

The choice of the right solvent is an everyday decision for the chemist Which solvent would be the best to dissolve certain products, and what solvent would lead to increased reaction yields or rates of the reaction As applied to the electron-transfer reactions and the reactions of the ion-radical formed, these questions seem to be less perplexing for the readers by means of considerations mentioned in Section 5.4. 

Worked Example Why is an A-centered tetragonal lattice not possible Because centering only on the A faces (or only on the B faces) would destroy the fourfold symmetry and hence the lattice would not be tetragonal. The question of why centering on both the A and B faces is also disallowed is left as an exercise for the reader. 

In practice, experimental data are usually plotted in conjunction with the theoretical working curve for the particular mechanism that the process in question is believed to follow. Whether or not the experimental data are consistent with the mechanism is then concluded on the basis of how well the data fit the working curve. Very often this aspect of the use of the theoretical working curve is highly subjective and it can be difficult for the reader of a paper to assess just how good the mechanism assignment really is. 

In attacking a synthetic target, the critical question about the suitability of any method involves selectivity chemo-, regio-, diastereo- and enantio-selectivity. Both from an educational point-of-view for the reader who wants to leam about a new field, and an experimental viewpoint for the practitioner who seeks a reference source for practical information, an organization of the chapters along the theme of selectivity becomes most informative. 

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