Reason for decrease

Chain decomposition of hydroperoxide, formed by means of valence transfer along the molecule, is considered to be another reason for decrease in hydroperoxide escape. 

Even thongh cleanup procedures are advocated before sample analysis, there can be several limitations to varions cleannp steps. The reasons for decreased effectiveness of cleanup procedures include (1) Sample loading may exceed the capacity of cleanup columns, (2) nonpetrolenm componnds may have chemical strnctnres similar to petroleum constituents and may behave like a petroleum constituent, (3) analytes of interest may be removed dnring the cleanup and (4) no single cleanup technique removes all the chemical interference. 

Unlike N20, adsorption of 02 leads not only to the O species, but also to 02 species. Many authors consider the latter radical as a reason for decreased selectivity in the presence of 02. 

In 2002, this type of N20 oxidation was re-discovered by Panov et al. [168]. Being guided by quite a different idea, the authors [168] used milder conditions and obtained much better selectivity, which in many cases exceeded 90%. Such a high selectivity was shown to relate to a non-radical type reaction mechanism as well as to a remarkable feature of the oxidant. N20 reacts solely with alkene C=C bonds and is inert towards all other bonds. Therefore, reaction products having no double bonds are not subjected to overoxidation. Only non-oxidation side processes maybe a reason for decreasing selectivity. 

Common catalytic systems are characterized by the presence of reagent molecules only, whereas the enzymatic system is multicomponent and possesses low concentrations of the substrates in water. The interaction between a substrate with an oxidant or a reducer is most often considered. This makes unnecessary simulation of the enzyme selectivity. However, free contact of reagent molecules with active sites preserves the possibility of various mechanism realizations which is the reason for decrease of the process selectivity. Apparently, a compromise should be found in resolving the question of selectivity in biomimics development in suggesting that, though complex gap mechanism is the effective method for distance and mutual orientation control of reactive groups in the enzyme, it may hardly be implemented in synthetic systems. 

The Cp2ZrMe2—[Al(t-Bu)0]6 catalyst exhibits lower activity in ethylene polymerisation than the Cp2ZrMe2— [Al(Me)0]x catalyst. Reasons for decreased activity of the former catalyst compared with the latter are difficult to determine, since the exact speciation of methylaluminoxane is unknown however, commercial methylaluminoxane contains a large amount of trimethylalu-minium [359, 360],... 

The indole moiety confers (5 receptor selectivity by decreasingn affinity and enhancing 8 affinity. It is likely that the reason for decreased affinity of fi is the loss of the C-6 carbonyl oxygen as the proton-accepting centre which is believed to be important for recognition of the fi receptor [189],... 

In hydrocracking of HVGO alone the reason for decreased gas formation over Co-AC catalyst (compared with a thermal run) may be the fact that the activated carbon leads to the formation of more H or HS which terminates the radical degradation pathy-ways. However, in the case of a blend, in the absence of catalytic activity, hydrocarbon quenching (with radicals from derivated plastics) may be more pronounced than hydrogen quenching (with H ). 

Unfortunately, for reasons that are not clear, interest in studies of PER in general, including PER reguladon of immune funcdon has waned in recent years and the lack of progress leaves the endre issue of PER funcdon in the immune system cloudy. Part of the reason for decreased interest may be the finding that in many cases the benzodiazepines used clinically have been found to have weak or no acdvity at PER in some systems, so the relevance to drugs currently used in the clinics is not apparent. 

It is difficult to determine the reasons for decreased absorption of vegetable iron sources however, some researchers speculate that the ferritin administered with vegetable sources is incompletely miscible with a nonheme iron pool or that it actually forms a separate iron pool (3,5). 

It should be possible to assess the potential and the reason for decreased fitness in resistant biotypes in cases where the mechanism of resistance is known (2). Table I lists the herbicides or classes of herbicides to which resistance has been found in field situations and for which the mechanism of resistance is known or suspected. (A complete list of weeds with herbicide resistant biotypes as of December, 1988 is presented in the chapter by LeBaron and McFarland in this book.)... 

Let s consider the reasons for decreases in the stress-strain parameters of furfurol-acetone polymer concrete in a wet environment. The process of water absorption by polymer concrete occurs in two ways by diffusion and absorption. The latter is associated with the presence of free benzene sulfonic acid, which is highly hygroscopic and absorbs moisture from the environment and thus increases... 

The governing thermodynamic expression for solubility is AG(solubility) = AH - TAS, and as long as AG(solubility) is negative, solubility occurs. Therefore, the reason for decreased solubility and ultimate loss of solubility as the number of CH2 groups increases must be due to a positive (-TAS) term. The formation of the ordered hydrophobie hydration from less ordered bulk water results in a negative AS due to formation of water more ordered than bulk... 

As temperature decreases, the Cs w and Cwaw2 values decrease due to freezing of water according to the shift of the equilibria (1) and (IV). The WAW1-WAW2 transformation could occur due to occurrence of (VI) and (Vlll) processes. The reason for decrease in Csaw with increasing temperature could be the shift of equilibrium (II). 

U.S. and European Union countries compare. The U.S. had only one asylum seeker per 1,000 inhabitants, the average in 42 member states of the European Union was 1.8 asylum seekers per 1000 inhabitants, and less than 1 person (0.8) asylum seekers per 1000 residents in Australia (UNHCR June 2008 8). Over the last five years, asylum applications in industrialized countries have more than halved. Decreased asylum applications may indicate improved conditions in some of the countries of origin of asylum seekers. A more likely reason for decreased applications (UNHCR 18 March 2008) is the introduction of restrictive policies in some industrialized countries discouraging asylum seekers from applying. 

Finally, the importance of SSIE with respect to an interaction of zeolite matrices and clays used as binders in catalyst formulations has been stressed several times. Thus, Canizares et al. [72] showed that SSIE between Na-mont-morillonite (binder material) and H-ZSM-5 or H-mordenite is the reason for decreased Bronsted acidity in the zeolite matrices as compared to the unbound zeolite. 

Actually, in medical science, the connectivity of trabecular bone attracts increasing attention, as it has been hypothesized that a loss of trabecular elements and consequently a loss in connectivity is a primary reason for decreasing strength and stiffness in osteoporosis [42]. Pursuing a relation between the connectivity and the mechanical properties in polymeric systems may be likewise important [43]. The connectivity is thought to be a very sensitive measure of the occurrence of morphological transition during SD [44]. 

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