Plausibility control

Provide redundant software—(software diversity) with a plausibility control... 

Tectonic processes control the terms on the right-hand side, as already discussed. This also defines the sum of terms on the left-hand side. The control of the relative proportions of elements on the left-hand side is uncertain. The most plausible controls based on present data are ... 

Plausibility control for newly written chemfiles and for the synthesis procedure... 

Figure 19.8. With the ARCoDat module, the users can build themselves synthesis-specific data sets for end-stage compounds. Database interfaces permit substance data to be imported for stoichiometric calculations and plausibility/control. Search functions allow building block ensembles to be imported from, e.g., in-house central databases such as Oracle and MS-Access or files like SD-Files or Excel spreadsheets.

The scheme illustrated in Fig. 6 is tentative, and the possibility that a number of other plausible control mechanisms may operate in plants has not been adequately explored. For example, in spite of the established importance of AdoMet in the control of methionine biosynthesis in microorganisms, this compound has frequently not been considered in studies of potential effectors of plant enzymes (e.g., aspartokinase). Another possibility is that methionine biosynthesis may be controlled by changes in the amounts of enzymes (e.g., by induction, repression, etc.) rather than by changes in the activities of enzymes (e.g., by feedback stimulation or inhibition). 

Another plausible control on lanthanide solubility in seawater includes the formation of lanthanide carbonates (Choppin 1986, 1989). Previous determinations of lanthanide carbonate solubility products include the works of Jordanov and Havezov (1966) and Firsching and Mohammadzadel (1986). In the former study lanthanide solubility products expressed as Ai p(M)= at 25 C and zero ionic strength, were found to... 

Recently, solicon-tethered thastereoselecdve ISOC reactions have been reported, in which effective control of remote acyclic asymmetry can be achieved fEq 8 91) Whereas ISOC occur stereoselecdvely, INOC proceeds v/ith significandy lower levels of diastereoselecdon The reaction pathways presented in Scheme 8 28 suggest a plausible hypothesis for the observed difference of stereocontrol The enhanced selecdvity in reacdons of silyl nitronates may be due to l,3- illylic strain The near-linear geometry of nitnle oxides precludes such differendadng elements fScheme 8 28 ... 

Thus chelation control " may lead to either product, depending on the relative stabilities of the respective ot- and /(-chelates. In cases with predominant formation of the anri-diastereomer, it is often difficult to establish whether the formation of a /(-chelate or an open-chain Felkin - Anh transition state is responsible for the observed stereochemistry the decision usually rests on plausibility considerations. Thus, with regard to the results obtained for a-alkoxy carbonyl... 

These conditions arc known to liberate the naked enolate anion8 whose addition to chiral aldehydes according to the nonchelation control pathway appears plausible. 

Other additional studies or pertinent information that lend support to this MRL An intermediate-duration gavage study in rats found decreased hematocrit and erythrocyte counts relative to before-treatment values (Galal et al. 1977), but this study had some limitations, including lack of a control group and disparities between text and tables. Another intermediate duration gavage study in male rats demonstrated dose-related significant decreases in mean corpuscular volume (Undeger et al. 2000). An effect on the erythrocyte is plausible because erythrocyte cholinesterase has a function in the control of erythrocyte permeability (Wills 1972). 

Research use of analytical results in the framework of a nonanalytical setting, such as a governmental investigation into the spread of pollution here, a strict protocol might exist for the collection of samples (number, locations, time, etc.) and the interpretation of results, as provided by various consultants (biologists, regulators, lawyers, statisticians, etc.) the analytical laboratory would only play the role of a black box that transforms chemistry into numbers in the perspective of the laboratory worker, calibration, validation, quality control, and interpolation are the foremost problems. Once the reliability and plausibility of the numbers is established, the statisticians take over. 

Whereas plausible fungal metabolites from anthracene, acenaphthylene, fluorene, and benz[fl]anthracene—anthracene-9,10-quinone, acenaphthene-9,10-dione, fluorene-9-one, and benz[fl]anthracene-7,12-quinone—were found transiently in compost-amended soil, these were formed even in sterile controls by abiotic reactions (Wischmann and Steinhart 1997). 

Similarly, Wei et al. [18] made analogous predictions of C < 0 using hypernetted-chain theory and incorporating molecular polarizability. However, the discussion was again restricted to the plausibility of negative C under -control. 

Since the ion transfer is a rather fast process, the faradaic impedance Zj can be replaced by the Warburg impedance Zfy corresponding to the diffusion-controlled process. Provided that the Randles equivalent circuit represents the plausible model, the real Z and the imaginary Z" components of the complex impedance Z = Z —jZ " [/ = (—1) ] are given by [60]... 

On irradiation, all complexes except 81 gave P-lactam derivatives. Irradiation time, yields, and ratios of products are summarized in Table 10 30). In all irradiations, the P-lactam derivatives 75a-c and 76a-c were prbduced exclusively. The reason for the efficient control in the inclusion complexes is not clear. A plausible interpretation is that the crystal lattices of the inclusion complexes are too compact to produce oxazolidin-4-ones (cf. 73) which have a five-membered ring, compared to the P-lactams which contain a smaller four-membered ring. 

Mathur and Thodos Chem. Eng. Sci., 21 (1191), 1966] used the initial rate approach to analyze the kinetics of the catalytic oxidation of sulfur dioxide. They summarized the most plausible rate controlling steps for the reaction as ... 

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