Conflicting interpretations

Conflicting interpretations of the mechanism responsible for the acid-catalysed polymerization have been proposed, particularly by the prolific group of Kamens-kii136 and by Isacescu, Gavat and Ursu137. Essentially, the problem consisted in establishing the predominance of one or more of the following reactions in the initial phase of the process ... 

The various conflicting interpretations are attributed in part to the non-specific nature of the spectrum of lignin and more so to the fact that the. molecular weight of lignin is, as yet, unknown. Recently, Aulin-Erdtman (4) has successfully used the methoxyl content of various lignins instead of molecular weights in the determination of extinction coefficients. 

There have been conflicting interpretations of the EPR spectra of these selenium-containing complexes. For example, various X-band EPR spectra of Fe(III) diselenocarbamates recorded in chloroform solutions at 12 K tended to be broad and poorly resolved, except for a series of three resonances centred around g=2 [62]. They also appeared to be very similar to the spectra recorded for Mn(III)-doped Co(III) tris(dithiocarbamate) compounds [76] or Cu(II) di(diselenocarbamate) systems [77]. In another study of EPR spectra recorded for powdered Fe(III) thioselenocarbamates and diselenocarbamates at room temperature [69] broad, poorly resolved lines at g 4... 

Owing to the influence of the surface state, to the evolution of the electrode along one experiment as well as from an experiment to another, it is understandable that conflicting interpretations exist. Nevertheless, there is some agreement about the fact that the rate determining step is the first electron addition, at low current density [59, 66, 70-72] ... 

The classical mystic experience is the prime example of an unusual perception still subject to conflicting interpretations. Both Eastern and Western mystic literature describe an... 

X-ray or electron diffraction analyses are commonly employed to determine mineral species. In the case of biophosphates, these techniques are limited because the material is a complex mixture of organics and inorganics and furthermore the crystallites are small. Thus, resolution of X-ray diffraction pattern of bone and dentin material is rather poor. Electron diffraction pattern is generally better, but there is always the possibility of secondary alteration of the specimen during exposure. Other methods — such as infrared analysis — have their limitations too. In short, there are some analytical problems which may in part account for the conflicting interpretations offered in the literature. 

Robert Boyle, The Sceptical Cymist (1661), facsimile edition (London Dawsons of Pall Mall, 1965), 202-204. This passage has invited conflicting interpretations concerning the status of alchemy. Clericuzio ( Carneades and the... 

There have been conflicting interpretations of the stereochemical data for 6-bromo-7-oxo-derivatives. Non-stereospecific bromination at C-6 gives a mixture in which the 6a-bromo-compound predominates. This occurs with compounds having an unactivated aromatic ring, provided there is no methoxy-carbonyl group at C-4. If there is, then the 6a-compound is the sole product. 

A number of groups of workers have sought to clarify the situation presented by these conflicting interpretations In particular, Gray et performed pyrolyses at temperatures between 240 and 800° C, and using a flow system carefully analyzed and estimated the products quantitatively. Paneth mirrors were removed in the case of nitromethane pyrolysis and the free radical mechanism (a) was confirmed. The decomposition of nitroethane at around 480 °C corresponds to the stoichiometric equation... 

Other orders of reaction have been deduced from the results reported [48] by Flory, including second order [49], second order followed by third order [49], and a 2.5-order scheme [50]. These conflicting interpretations may be a consequence of ignoring or inadequately taking into consideration the complexities of kinetics under typical conditions of... 

Table I provides a summary of the 2-D Pb structures observed for the various single-crystal planes of Cu. The structures correspond to Pb deposition at room temperature. Different structures are known to form at temperatures below 300 K. In cases where there have been conflicting interpretations of a given periodicity, the most recent structure is listed.

Given these conflicting interpretations of the iron-isotope record, coupled with organic and inorganic iron-isotope fractionations of similar magnitude, it is not possible at the present time to use iron isotopes to uniquely fingerprint early life on Earth. 

Section D discusses the electronic and transport properties of the materials from (primarily) an experimental point of view. The experimental techniques involved are briefly reviewed, forming a basis for assessing the various experimental results. Selection between conflicting interpretations and critical evaluations of certain results and interpretations are performed where this is possible. 

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