Meyer model

Vacuum evaporator, Btichi Model RE121, Brinkmann Instruments, Inc. (Burlingame, CA, USA), with temperature-controlled water-bath Nitrogen evaporator, Meyer Model 111, Organomation Associates, Inc. (South Berlin, MA, USA), with temperature-controlled water-bath... 

In view of the resistance of glycogen and its beta-limit dextrin to hydrolysis by R-enzyme," the fine structure of glycogen could not be investigated in a similar way. However, an attempt to show that this polysaccharide also fits the Meyer model was made by Cori and coworkers by using the enzymes phosphorylase and amylo-(l->6)-... 

Fig. 11.—Successive Actions of Phosphorylase, beta-Amylase, Isoamylase, and befa-Amylase on the Meyer Model of Amylopectin and Glycogen. [The symbolism is basically that of Fig. 9, modified to show the action of the various enzymes as follows - - - removed by pho horylase and heto>amylase , branch points hydrolyzed by isoamylase and-, immune to beta amy]ase after isoamylase action.]...

Thus, the structure shown in Fig. 12a was proposed by Whelan and coworkers to represent diagrammatically the structures of glycogen and amylopectin. It may be seen that this model, which has been drawn in the most symmetrical way possible and in which all B-chains carry, on average, 2 other chains (either 2 A-chains or 2 B-chains), accounts for the liberation of maltose after feefa-amylase treatment of isoamylase-debranched molecular size should not be... 

De Gennes-Meyer Model for Field Induced Cholesteric-Nematic Transition... 

Meyers, M.A., A Model for Elastic Precursor Waves in the Shock Loading of Polycrystalline Metals, Mater. Sci. Engrg. 30, 99-111 (1977). 

Killus, J. P., Meyer, J. P., Durran, D. R., Anderson, G. E., Jerskey, T. N., and Whitten, G. Z., "Continued Research in Mesoscale Air Pollution Simulation Modeling," Vol. V, "Refinements in Numerical Analysis, Transport, Chemistry, and Pollutant Removal," Report No. ES77-142. Systems Applications, Inc., San Rafael, CA, 1977. 

The most popular theoretical description of the potentiometric behavior of ion-selective membranes makes use of the three-segmented membrane model introduced by Sollner53), Teorell 30,54), and Meyer and Sievers 31-5S). In this model the two phase boundaries and the interior of the membrane are treated separately. Here, the... 

Mendeleev s reluctance toward reduction was not widely shared. One of the codiscoverers of the periodic system, the German Lothar Meyer, accepted the possibility of primary matter and supported Prouf s hypothesis. He was also happy to draw curves through numerical data, including his famous plot of atomic volumes that showed such remarkable periodicity that it helped in the acceptance of the periodic system. Nonetheless, prior to Thomson s discovery of the electron, no accepted model of atomic substructure existed to explain the periodic system, and the matter was still very much in dispute. 

Fig. 10.5 Theories about the eonstitution of polymer materials . Left the theory of mieells by Mark and Meyer (1928) at the example of eellulose, right Herrmann Staudinger with a model of a polymer ehain...

Binnig et al. [48] invented the atomic force microscope in 1985. Their original model of the AFM consisted of a diamond shard attached to a strip of gold foil. The diamond tip contacted the surface directly, with the inter-atomic van der Waals forces providing the interaction mechanism. Detection of the cantilever s vertical movement was done with a second tip—an STM placed above the cantilever. Today, most AFMs use a laser beam deflection system, introduced by Meyer and Amer [49], where a laser is reflected from the back of the reflective AFM lever and onto a position-sensitive detector. 

Despite the work of Overton and Meyer, it was to be many years before structure-activity relationships were explored further. In 1939 Ferguson [10] postulated that the toxic dose of a chemical is a constant fraction of its aqueous solubility hence toxicity should increase as aqueous solubility decreases. Because aqueous solubility and oil-water partition coefficient are inversely related, it follows that toxicity should increase with partition coefficient. Although this has been found to be true up to a point, it does not continue ad infinitum. Toxicity (and indeed, any biological response) generally increases initially with partition coefficient, but then tends to fall again. This can be explained simply as a reluctance of very hydrophobic chemicals to leave a lipid phase and enter the next aqueous biophase [11]. An example of this is shown by a QSAR that models toxicity of barbiturates to the mouse [12] ... 

The use of real food systems for detailed studies of antioxidants is complicated by a large number of factors which are often unknown or cannot be controlled due to the complex nature of foods. Using simplified model systems, which mimic the main features of a given food system, or antioxidant assays for quantifying the antioxidant action, can be very helpful in clarifying the action of potential antioxidants (Aruoma, 1996 Moller et al, 1999 Prior and Cao, 1999 Frankel and Meyer, 2000). The extrapolation of conclusions based on the behaviour of model systems or antioxidant assays to real complex food systems should generally be done with great care, and should ideally be based on results from more than one model system or assay (Frankel and Meyer, 2000). 

Lindberg SE, Meyers TP, Taylor GE, Turner RR, Schroeder WH. 1992. Atmosphere/surface exchange of mercury in a forest results of modeling and gradient approaches. J Geophys Res 97 2519-2528. 

Meyers TP, Finkelstein P, Clarke J, Ellestad T, Sims PF. 1998. A multilayer model for inferring dry deposition using standard meteorological measurements. J Geophys Res 103 22645-22661. 

Idebenone, an inhibitor of lipid peroxidation, was shown to prolong survival time and delay the onset of ischaemic seizures in a bilateral carotid occlusion model in rats. It is marketed in Japan as a therapy to improve cerebral metabolism and performance after a stroke (Suno and Nagaoka, 1984). Cerebral protective effects after an ischaemic insult in dogs and rabbits have been seen with the hydroxyl radical scavenger, mannitol (Meyer et al., 1987). 

H. Gampp, M. Maeder, C.J. Meyer and A.D. Zuberbuhler, Calculation of equilibrium constants from multiwavelength spectroscopic data. Ill Model-free analysis of spectrophotometric and ESR titrations. Talanta, 32 (1985) 1133-1139. 

Potential cycling has been found to accelerate Pt dissolution compared with poten-tiostatic conditions. The dissolution mechanisms and dissolved species involved in this process are unclear [Johnson et al., 1970 Kinoshita et al., 1973 Ota et al., 1988 Rand and Woods, 1972]. Darling and Meyers have developed a mathematical model based on (9.5)-(9.7) to smdy Pt dissolution and movement in a PEMFC during potential cycling from 0.87 to 1.2 V [Darling and Meyers, 2003, 2005]. Severe Pt dissolution occurs when the potential switches to the upper limit potential (1.2 V), and then stops once a monolayer of PtO has formed. The charge difference between the anodic and cathodic cycles was found to be consistent with the amount... 

Darling RM, Meyers JP. 2003. Kinetic model of platinum dissolution in PEMPCs. J Electrochem Soc 150 A1523-A1527. 

Darling RM, Meyers JP. 2005. Mathematical model of platinum movement in PEM fuel cells. J Electrochem Soc 152 A242-A247. 

The distribution of electric potential across the membrane and the dependence of the membrane potential on the concentration of fixed ions in the membrane and of the electrolyte in the solutions in contact with the membrane is described in the model of an ion-exchanger membrane worked out by T. Teorell, and K. H. Meyer and J. F. Sievers. 

Meyer, B.R. "Design Formulae for 2-D and 3-D Vertical Hydraulic Fractures Model Comparison and Parametric Studies," SPE paper 15240, 1986 SPE Unconventional Gas Technology Symposium, Louisville, May 18-21. 

Doerffel K, Kuchler L, Meyer N (1990) Treatment of noisy data from distribution analysis using models from time-series analysis. Fresenius J Anal Chem 337 802... 

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