Difference in degree

Accurate mass measurement requires high resolving power. The difference in degrees of difficulty between measuring an m/z of 28 and one of 28.000 is likely to be large. Table 39.3 shows the broad mass ranges achievable with various analyzers. 

According to Georgadze the three sophora alkaloids sophocarpine (a), sophocarpidine (h) and sophoridine (c) only differ in degree and not in character of their pharmacological activity thus on intravenous injection each causes a rise and then a fall i i blood pressure and their activity in this direction is in decreasing order (a), (c), (b). In small doses they stimulate, and in larger doses depress, the isolated heart of either cold- or warm-blooded animals and then their decreasing order of activity is (c), (b), (a). 

The difference in degree of cure of the blends by different curatives has also been explained on the basis of changes in curative distribution with accelerator types and the effect of cure temperature. The tensile properties of the blend cured by S/ZDEC at 170°C were significantly lower and modulus was higher than those cured by S/MET and S/DPG as shown in Table 11.17. Lowering of cure temperature by 20°C significantly improved these properties. However, the standard deviation in the results increased limiting the potential for any solid conclusion. 

Fig. 103.—Tension r at a =4 vs. the reciprocal of the primary molecular weight for three butyl rubber series differing in degree of cross-linking (or in Me). (Flory. )...

L. Marilley and M. Aragno, Phylogenetic diversity of bacterial communities differing in degree of proximity of Lolium perenne and Trifolium repens roots. Applied Soil Ecology 73 127 (1999). 

The major causes of spectral variation were (1) instrumental drift, as Goodacre and Kell realized, but also (2) sample history, as discussed above. In particular, variations in the supplier or even the batch of tryptic soy agar (TSA) used for cell culturing led to spectral variations that differed in degree among disparate species. This phenomenon was attributed to the differential metabolic capabilities of the species with respect to the changed nutrients. 

Fig. 7.18 Plots of relative N-C(a)-C angle values (surfaces of differences, in degrees, relative to the values at < > = / = 180°) for the ( ), /-space of ALA. The top surface represents values directly calculated for ALA as a whole by HF/4-21G geometry optimizations the center surface represents simulated parameter values which were obtained using the conformational geometry function additivity principle as described in the text. The bottom surface is the difference, top minus center. All surfaces were plotted with the same scale factor, but offset by arbitrary and constant amounts for the sake of graphical clarity. The numerical values used to construct this Figure were taken from L. Schafer, M. Cao, M. Ramek, B. J. Teppen, S. Q. Newton, and K. Siam, J. Mol. Struct., in press.

Tetra-/>-anisy lhy drazine is green in benzene at room temperature.185 On the other hand, 1,2-diphenyl-1,2-di- >-nitrophenylhydrazine appears not to be dissociated at all. If this difference in degree of dissociation is real, and not a specious one due merely to a difference in color or reactivity of the radicals, it presents a puzzling contrast to the case of diphenylpicrylhydrazyl and to the triphenylmethyl series in which both kinds of substituent stabilize the radical. 

Just as the Cosmic Will manifests the Cosmic activities and forms, so nay the Individual Will materialize activities and forms on its own plane. There is but one difference between the Cosmic Will and the Individual Win—the difference in degree. All Will, front the Cosmic Win to the feeblest Individual Wilt it identical in nature, although widely... 

A previous study has shown that the effects of solvating a nucleophile by a protic or a dipolar aprotic solvent differ in degree and not so much in nature the major effect remains a lowering of the nucleophile s HOMO level. It is therefore possible, in order to observe the general trend, to solvate the anion with just one molecule of water. 

Two states can be distinguished in chromatin heterochromatin and euchromatin. The two states describe for every cell type a characteristic difference in degree of condensation and transcription activity of DNA. Genes located in the condensed heterochromatin can not be transcribed, whereby genes located in euchromatin are accessible for transcription. 

Figure 10. Molecular weight calibration curves for kraft lignin samples differing in degree of association eluted from Sephadex G100 with aqueous 0.10A/ NaOH ( ) associated sample after 385 h at 180 gL 1 in 1.0 M ionic strength aqueous 0.40 M NaOH (O) orig nal preparation ( ) dissociated sample precipitated upon acidification to pH 3.0 after 2000 h at 0.50 gL 1 in aqueous 0.10 M NaOH.

Products from different sources in each class differ in degree of branching of the molecule and in amount of crosslinking. 

The proton nmr spectra of amines show characteristic absorptions for H—C —N protons around 2.7 ppm. The positions of the resonances of N—H protons show considerable variability as the result of differences in degree of hydrogen bonding (Section 9-10E). Sometimes the N—H resonance has nearly the same chemical shift as the resonances of CH3—C protons (as with N-ethylethanamine, Figure 23-5). 

Saunders A, Wilson SM. Do diuretics differ in degree of hypokalaemia, and does it matter Aust J Hosp Pharm 1991 21 120-1. 

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