H Apparent

Although not fully characterized, 2-carbethoxy-4-hydroxythiazole (230a), R, = C02Et, R2 = H, apparently results from the reaction of chloroacetonitrile with ethyl thiooxamate (2), Ri = C02Et (417). a-Chlorothioacids (232) condensed with thiobenzamide in the presence of carbon disulfide (542) yield the corresponding 2-phenyl-4-hydroxy-thiazole (234). The same product was obtained from 233 (Scheme 121). 

Well head pressures increased when injection was stopped at Well No. 1 for more than 24 h, apparently caused by a combination of precipitation reactions and backflow of sand. Injecting a slug of brine after every period of interrupted flow solved this problem. Movement of the main organic constituents (n-hexylamine, butanal, butanol, and phenol) was assumed to be slowed by adsorption. This conclusion was based on laboratory adsorption experiments by involving a different geologic formation (Cottage Grove sandstone) no direct observations were made of the injected waste. For current hazardous waste injection wells in Texas, the reader can refer to Texas Environmental Profiles web site for on-line resources for the State of Texas.185... 

The superscript br refers to the branches (side chains). h Apparent values for the graft polymers, from SEC analysis. 

Houdijk, J.G.M., Bosch, M.W., Tamminga, S., Verstegen, M.W.A., Berenpas, E.B., and Knoop, H., Apparent ileal and total-tract nutrient digestion by pigs as affected by dietary nondigestible oligosaccharides, J. Anim. Sci., 77, 148-158, 1999. 

Due to their volatility, a number of stannocene and plumbocene derivatives have been studied by mass spectroscopy. The dominant feature in the mass spectrum of Cp2Sn, Cp2Sn BF3 (39), CpSnCl (31), (MesC5)2Sn (2/), Cp2Pb, CpPbCl, CpPbBr, and CpPbl (18) is the R M ion (R = Me or H). Apparently, redistribution occurs when CpMX is volatilized since... 

X = Y = Z)] give a completely linear Y-T correlation against the a scale with an r value of 0.76 for the substituent range from p-dimethylamino to p-nitro (Yukawa et al., 1966). On the contrary, less satisfactory Y-T correlations are obtained for the pXr+ values for monosubstituted triphenylmethanols [3(X,H,H)j or for the log(k/ko) values for the solvolysis of the corresponding chlorides, in which the s-tt-ED p-methoxy substituent exhibits a higher r value than that for the other w-ED groups. In the monosubstituted [3C (X,H,H)], apparently only the s-7r-ED-substituted aryl tends to enter into coplanarity with the cationic orbital, to exert its maximum resonance effect. 

The observation of substitutional doping in a-Si H apparently contradicts this bonding argument. However, one of the main conclusions of this chapter and the next is that a modified %—N rule... 

Butadiene hydrogenation is structure-sensitive and thus regarded as particle size-dependent (530-53 ). When the total number of Pd surface atoms on the nanoparticles is used for rate normalization, a size-dependent rate is indeed observed (stars and dashed line in Fig. 58b the data show the number of butadiene molecules reacted per Pd surface atom per second within 1 h). Apparently, this TOF increases linearly with particle size, indicating that larger palladium particles are more active than smaller ones, in agreement with what is commonly reported for this reaction (see References (530,537) and references cited therein). 

When one studies random objects, the first question is always what is the probability of occurrence of individual objects in the ensemble In our context the question is what is the probability of occurrence of a specific Hamiltonian matrix H So, clearly, we need a probability density p H) which assigns a probability to a given matrix H. Apparently the matrix H is specified by stating the three matrix elements H, H 2 and H22-Accordingly, the density p depends on three arguments. 

When the data on still In the body at various times after Intramuscular Injection of troplne-labeled atropines were plotted and analyzed to yield two linear regressions In time, the derived half-times ranged between 1.3 and 2.1 h for the early parts of the curves and between 12.5 and 38.0 h for the later parts. When the data for the subject studied most extensively by Gosselln et al. (104) after Intramuscular Injection of troplne-labeled atropine were treated similarly, the half-times were 1.8 and 16.5 h. Apparently, the two types of labeling led to very similar estimates of the rate of removal of atropine from the body. 

Simultaneous cleavage of two exocyclic bonds (route h) apparently does not occur, and no metastable support exists for this route. A process involving one ring bond and one exocyclic bond is difficult to sort out as the resultant ion is indistinguishable from the parent, and its presence is inferred from its decomposition. A c-d type transition occurs with strong metastable support in the dibenzometallepin system. The following are examples of transitions that may be formulated as c-d transitions for which metastable support exists... 

The reason why a large excess of H apparently adsorbs on Pd black at 273 K may be as follows. When the sorption data are plotted as against the H/M atomic ratio (Figure 4) sigmoid-shaped curves are obtained both at 273 and at 298 K. The first part of the curve probably corresponds to readsorption into a monolayer, the middle part to simultaneous completion of the adsorbed monolayer and absorption into the a phase of Pd, and the final part to formation of the / -phase hydride. This presupposes that in small, highly distorted Pd particles the -phase hydride begins to nucleate at lower pressures than in the case of bulk Pd. This is a reasonable assumption because a lowering of the absorption plateau pressure in Pd powders has been observed.Only a small proportion of the (smallest ) Pd particles would need to form the hydride phase to account for the excess sorption. 

True specific growth rate of attached cells in microcarrier culture (h" ) Apparent specific growth rate of attached cells in microcarrier culture (h ) Apparent specific growth rate based on effective total cell concentration (hr ) True specific growth rate of free cells in microcarrier culture (h )... 

The relative proportions of VI and VII obtained from the intermediate salt VIII (R = H) apparently vary with the nature of the reducing agent zinc-acid systems aiford corydaline predominantly 79) while boro-hydride reduction 80) is claimed to give corydaline exclusively. Products of types VI and VII may not originate exclusively from reduction of the imonium salt since a recent investigation (5i) of the reaction of methyl iodide with dihydroberine has indicated the imonium salt corresponding to VIII (R = H) readily disproportionates to berberine and tetrahydroberberine (IX). 

Table 1. Identification of gaseous neutral species ( A,H/ = Apparent enthalpy of sublimation)...

Liu et al. copolymerized TEMPO functional methacrylate- and St-based monomers with MMA and St, respectively, using ATRP conditions [306]. The resulting backbone copolymers were relatively well-defined (Mn=6200-8700 with Mw/Mn< 1.65) and were used to initiate the polymerization of St at 120 °C for 24 h, apparently resulting in the graft copolymers [306]. No characterization data for the graft copolymers was provided. 

H2. Hamlin, C. R., Kohn, R. R., and Luschin, J. H., Apparent accelerated aging ofhuman collagen in diabetes mellitus. Diabetes 24, 902-904 (1975). 

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