Q values table

Table 73-1 Q-Value table (at different confidence levels)...

Figure 8 shows a comparison of experimental and calculated energy spectra in the QENS experiments for ethane in NaX at different Q values. Table III contains the molecular mobility data determined by QENS. In Fig. 9 the self-diffusion coefficients obtained by QENS (cf. Table III) are com-... 

To calculate the q values (Table 1.8), a linear approximation of diildT versus T (Tarasevich 2006) and our experimental data were used that give... 

The q values (Table 1.8) calculated from the water adsorption isotherms are similar to the Q values (Table 1.9) obtained using the calorimetry method. Certain differences between these values can be caused by different conditions of sample preparation and subsequent rehydration effects discussed earlier. 

Table 7.4 lists the Q and e values for an assortment of common monomers. The extremes in the column of e values in Table 7.4—which are listed in order-quantify the range of donor-acceptor properties which is used as the basis for ranking in Fig. 7.2. The Q values perform a similar ranking with respect to resonance effects. The eight different Q-e combinations in Table 7.4 allow the estimation of ri and values for 28 different copolymers. Of course, in these systems Q and e values were assigned to give the best fit to r values which had already been measured. As an illustration of the predictive values of the Q-e scheme, consider the following example ... 

DIFLUOROBENZENES Interest in the commercialization of difluoroaromatics in crop protection chemicals and dmgs (Table 5) continues to be strong. Numerous liquid crystals containing the 1,2-difluorobenzene moiety have been synthesized. Table 6 lists physical properties of commercially significant intermediates such as o-, m-, and -difluorobenzene, 2,4-difluoroaniline and 2,6-difluorobenzonitrile. The LD q values for the three isomeric difluorobenzenes are identical 55 g/m for 2 h (inhalation, mouse) (127). 

Toxicity. Sugar alcohols are classified as relatively harmless. Acute oral toxicity values in mice for mannitol and sorbitol (5) are given in Table 4. The acute oral LD q value for xyUtol in mice is 25.7 g/kg (205). Ingestion of 10 g/d of either mannitol or sorbitol by a normal human subject for one month resulted in no untoward effects (206). XyUtol given to healthy humans for 21 d in increasing doses up to 75 g/d produced no adverse effects (207). The limiting dose of xyUtol for production of diarrhea in humans is 20—30 g (4), but tolerance usually develops on continued adrninistration (207). 

Tea extracts and tea polyphenols inhibit copper- and peroxide-induced oxidation of LDL in vitro (116,123,124). The inhibitory concentration for 50% reduction (IC q) values for inhibition of copper-induced oxidation of LDL by some phenoHc antioxidants are Hsted in Table 7. The IC q for epigaHocatechin gaHate was found to be 0.075 p.mM, which was the most potent of all the phenoHc antioxidants tested (123,124). Similar results have been reported elsewhere (115,116,125,126). 

Toxicology. Inorganic tin and its compounds are generally of a low order of toxicity, largely because of the poor absorption and rapid excretion from the tissues of the metal (42—49). The acidity and alkalinity of their solutions make assessment of their parenteral toxicity difficult. The oral LD q values for selected inorganic tin compounds are Hsted in Table 2. It is estimated that the average U.S. daily intake of tin, which is mostly from processed foods, is 4 mg (see Food processing). 

Health and Safety Factors As a class, surfactants and detergent products are among the most widely used chemical compositions. Almost everyone is exposed to these products on a daily basis ia situatioas that range from ingestion of food-grade emulsifiers to intimate coatact of skin and eyes with personal-care and laundry products. Safety is therefore a matter of great importance (132,133). Ranges of surfactant LD q values are shown ia Table 2. 

Current content values Q and Q" for the most important anode metals are given in Table 6-1. These data apply only to pure metals and not to alloys. For these the Q values corresponding to the alloy composition can be calculated from ... 

Table 1 Q values for nuclear reactions light isotopes. induced by protons and ...

The top table gives the predicted total energies for each molecule, and the bottom table lists the computed dissociation energies and AH. All three model chemistries do pretty well on all three phases of the process, with G2 and CBS-Q generally modeling it very accurately. The CBS-Q values are the most accurate, and they take only about half as long to compute as G2 theory. CBS-4 performs well for O2 and for the overall AH at substantially less cost about one sixth the cost of G2 and one third the cost of CBS-Q. ... 

If Q is greater than values from a table yielding Q values for 90% probability of difference, then the value may be removed from the data set (p<0.10). An example of how this test is used is given in Table 11.17a. In this case, the pKB value of 8.1 appears to be an outlier with respect to the other estimates made. The calculated Q is compared to a table of Q values for 90% confidence (Table 11.17b) to determine the confidence with which this value can be accepted into the data set. In the case shown in Table 8.17, Q<0.51. Therefore, there is <90% probability that the value is different. If this level of probability is acceptable to the experimenter, then the value should remain in the set. 

Parsons-Zobel plot for NaF solutions was linear (Table 12). The value of Cf"0,determined by the extrapolation of the Cl, Q1 curve to Cjl = 0 and corrected by the value of /pz, has been obtained (Cf 0 - 0.32 F m 2). Adsorption studies of (C l at a polished pc-Pb show splitting of the adsorption-desorption peaks, which can be explained by the energetic inhomogeneity of the surface. The difference between Ea=Q values of various Pb faces has been estimated to be on the order of50-60 mV.604... 

The calculated values (Table 2) consistently show the triplet preference for the mono-substituted TM diradicals though the S-T gap is small and close to that of the parent species 2 (Y = H). However, the values show slight singlet preference of 27 (Y = OH) and 29 (Y = SiHj). The singlet states are stabilized by the p-Ocjj-q interaction (Fig. 17a) in 29 and probably by the p-ct -q interaction in 27, where is lowered in energy by the inductive effect by the geminal OH group (Fig. 17b). 

Table 1.11. Critical q-Values for Two Means with Index Number Differences...

The tables of differences-of-means respectively of reduced q values are displayed with the corresponding ordered Xmean arranged at the top and down the left margin. 

TABLE 4. ED q values for substitution in LSD-trained or MDMA-trained rats, in the drug discrimination paradigm... 

Assume that K-values can be correlated by Equation 4.66 with pressure in bar, temperature in Kelvin and constants A, B[ and Q given Table 4.15. 

Obviously, in the case of PS these discrepancies are more and more reduced if the probed dimensions, characterized by 2ti/Q, are enlarged from microscopic to macroscopic scales. Using extremely high molecular masses the internal modes can also be studied by photon correlation spectroscopy [111,112], Corresponding measurements show that - at two orders of magnitude smaller Q-values than those tested with NSE - the line shape of the spectra is also well described by the dynamic structure factor of the Zimm model (see Table 1). The characteristic frequencies QZ(Q) also vary with Q3. Flowever, their absolute values are only 10-15% below the prediction. 

It is worth noting here that negative q values correspond to complex operators, while Stevens parameters are always real [19]. The forms of the operator equivalents are reported in Table 1.3 [20], and the corresponding matrix elements are found tabulated in books by Abragam and Bleaney and by Altshuler... 

Their q-values, either calculated from the experimental conditions or chosen for best fit, and their corresponding relaxation rate constants, obtained from separate stress-jump experiments, are listed in Table III. 

---