Discussion and Further Research

Obviously, this field has been developing rapidly in the last few decades. Much early work suffered because of insufficient techniques or isolation difficulties in chemical characterization of the extractive components. Now this is no longer the case modern advances in techniques, instrumentation, and analytical methods have resulted in some excellent and solid research in this field. A great deal of research remains to be done and this is discussed in the section below. 

Another point of development in this field has been the organisms involved. The main interest in this research has been the effects on man, but animals (93) 

This complexity has been reflected in the approach taken by two schools Of research. In the first, Morton started with a great deal of data on the epidemiology of cancer. She took these results and showed the importance of tannin in this effect. Much research resulted from her studies, and the effects (both pro and con) of specific polyphenols on these cancers was undeniable. The work of the second researcher. Hausen, has proven the effects of a wide variety of quinones on the above triad of effects. The quinones themselves and their mechanisms of action have been clearly delineated. The health and safety aspects of his book make it indispensable. 

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The formation of light is still a matter of discussion and further research to clarify and understand the mechanism behind the light emissions is therefore a prerequisite for a larger acceptance of the technique. Nevertheless, the results presented in this chapter show the usefulness of the technique to investigate oxidation of polyolefins. 

This chapter reviews the essential concepts of vascular mechanics and its methods of quantification. Some of the important controversies are discussed, and further research areas are pointed out. Detailed information is provided on the structural and mechanical changes of arteries with age. The effect of vascular disorders such as arterosclerosis and hypertension on the mechanical behavior of blood vessels is discussed as well. Extensive addition literature sources are provided. 

I have made the attempt to point out the solved and unsolved problems about the relationship between nutrition and atherosclerosis. If this paper gives impulses to discussions and further research in this field, then its objectives have been reached. 

A large number of studies on the polymerization and copolymerization of tin-containing monomers and the synthesis of new organotin polymers have been reported. In this review article the results are discussed and further ways for research in this interesting and important field of organometallic and polymer chemistry outlined. 

Comparative Toxicokinetics. Qualitatively, absorption, metabolism, and excretion appear to be similar in humans and laboratory animals (see discussion above). However, quantitative variations in absorption, metabolism, and excretion of 2-butoxyethanol have been observed with respect to age in rats (Ghanayem et al. 1987a). In addition, the efficiency of absorption of 2-butoxyethanol and excretion of 2-butoxyacetic acid after inhalation exposure differs for several animal species (Carpenter et al. 1956). However, the absorption, distribution, metabolism, and excretion of 2-butoxyethanol after inhalation, oral, and dermal exposure have been studied extensively only in rats. Further studies that focus on the age-related and species-related differences and their implications for human health would be useful. Additionally, in vitro studies using human tissue and further research into PBPK modeling in animals... 

The trend is similar to that discussed on page 345 for short fiber composites, but at the same time it is opposite to the general behavior of plain samples of both short fiber and continuous fiber composites, where the fatigue strength decreases when the biaxiality ratio A2 increases. However, on the basis of the limited amount of data available, it is impossible to justify the experimental evidence and further research is indeed needed to clarify the mechanisms responsible for this peculiar behavior. Results on [0/ 45]2s, [0/ 45/90]s, and [02/ 45]s graphite/epoxy cruciform laminates reported by Jones et al. [16] are less clear than those just discussed—in some cases increasing the biaxiality ratio Ai decreased the fatigue life, and for others the life was increased. 

While the negative effects of patient nonadherence have been known for decades (Howran 2013) and authoritative sources such as the World Health Organization and the American Heart Association put average nonadherence among those with chronic diseases around 50-75 %, the hterature still reveals a predominance of discussions of, and further research into, the problem rather than offering immediate action plans (Turner 2013). This topic is addressed in the following chapter in Sect 15.6. 

Even the determined line tensions with texp 10 N [34,35] are large compared to what is expected on theoretical grounds and the discussion above may also hold to some extent for these results. What is clear is that no general agreement as to the origin of the disagreement between the different experimental results and between the experimental results and theoretical expectations has been established thus far, and further research is necessary. 

The modem lubricating oil has many additives, and further research and developments continue to improve oils extending their useful life and effectiveness will be discussed later. 

Very local endemic species from these families do occur in the Yungas of La Paz but are almost totally absent from the Rfo Pilcomayo drainage system. With 10 species of Salvia endemic to the Rfo Grande basin and these from different subsections of the genus (J.R.I. Wood, in prep.), and numerous endemics from different genera in the three families under discussion here, it is clear that this basin has been an important centre of speciation and is rich in endemics. What is not certainly known is how far this pattern is repeated over other families, and further research will be necessary to demonstrate this clearly. 

Chapter 11 discusses and highlights key results and contributions. The limitations of this study and further research are discussed. 

The introduced quantification approach leaves room for improvement and further research. The consideration of hirther research can be classified into a discussion focusing on the role of the quantification approach within the decision-making process and the value determination by the three components extrapolation, simulation and fuzzy logic. 

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. 

Very few root. secretions can be expected to be effective unless the right set of circumstances arises sufficiently often. Further, research involving soil-grown plants is required to establish whether the right set of circumstances, as discussed above, does make a real contribution to the well-being of field-grown plants. Similarly, close scrutiny of all research must be made, particularly when results obtained in solution cultures and other contrived situations are believed to be relevant for plants growing in soil. 

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