Mooring observations

Sempervirine, C19H1JN2. H2O. From the alkaline liquid, after removal of gelsemine by ether, Moore observed that amyl alcohol extracted two amorphous alkaloids, of which the more basie was probably Thompson s gelseminine. From this material erystalline sempervirine was obtained by Stevenson and Sayre, and later by Chou, but a formula was first assigned to it by Hasenfratz. It forms yellow needles, m.p. 228°, from ehloroform, or orange-yellow to brown-red crystals, m.p. 258-260°, from alcohol, [a]D 0°, pK value 10-6. The salts crystallise well B. HCl. 2H2O, yellow prisms, m.p. > 300° B. HBr. 2H2O, m.p. 325°... 

The hydrate formed by photolysis of this substance is one of the few such products (the others are uracil hydrate, 5-fluorouracil hydrate, and uridine hydrate) that have actually been isolated and compared with authentic material of known structure.7 It is nearly the only product formed in the photolysis, is definitely stable at room temperature and neutral pH, and the thermal reversal to dimethyluracil is nearly quantitative. These properties, as Moore observed, make the reaction ideal for mechanistic investigation. Burr and Park have investigated the reaction mechanism by measuring the photolysis rate of dimethyluracil in mixtures of water with several nonaqueous, nonreactive solvents as a function of water concentration.64 The photolysis rate for 10" iM DMU was found to be the same in water-saturated cyclohexane (about 5 x 10-3M in water) as in dry cyclohexane. The photolysis rate in dry, highly purified dioxane was quite insensitive to water, and it was observed that hydrate formation (measured by thin-layer chromatography and by thermal absorbance reversal) became appreciable only at water concentrations above 40%. 

Fig. 2 The Black Sea mean current vectors from mooring observations a, b in upper layer (0-40 m) a in winter, b in summer c, d in subsurface layer (50-75 m) c in winter, d in summer e, f in intermediate layers e 100-150 m and f 200-300 m. Fine lines in Fig. 2a-d 50, 100, 500 and 1000 m depth contours, in Fig. 2e 100, 500 and 1000 m depth contours, in Fig. 2f 300 and 1000 m depth contours...

Fig. 3 a The Black Sea mean current velocity (10 2 ms ) and b its coefficient of variation versus depth (m) from mooring observations. Thick line in Fig. 3a total mean current velocity profile... 

Fig. 4 The Black Sea mean current velocity (10 2 ms l) versus mooring observations distance from coast (km) at a depth ranges a 0-15 m, b 20-40 m, c 50-75 m, d 100-150 m, e 200-300 m, f 500-750 m, g 1000-1500 m. Solid lines quadratic fits...

To get us to accept the distinction, Moore observes that the sensation of blue differs from, yet has an element in common with, the sensation of green. That in respect of which they differ he terms the object, that which is common to them he calls consciousness ... 

In 1965 Gordon Moore observed that the number of transistors per area of an integrated circuit had doubled every year since its invention. This trend has continued and has become known as Moore s law. 

Size exclusion was first noted in the late fifties when separations of proteins on columns packed with swollen maize starch were observed (Lindqvist and Storgards, 1955 Lathe and Ruthven, 1956). The run time was typically 48 hr. With the advent of a commercial material for size separation of molecules, a gel of cross-linked dextran, researchers were given a purposely made material for size exclusion, or gel filtration, of solutes as described in the classical work by Porath and Flodin (1959). The material, named Sephadex, was made available commercially by Pharmacia in 1959. This promoted a rapid development of the technique and it was soon applied to the separation of proteins and aqueous polymers. The work by Porath and Flodin promoted Moore (1964) to apply the technique to size separation, gel permeation chromatography of organic molecules on gels of lightly cross-linked polystyrene (i.e., Styragel). 

A mark of the success of this theory lies in the fact that no low lying superfluous / levels have been found which defy classification according to a plausible electronic configuration for the atom in question. On the other hand, there are sometimes predicted levels which have not yet been observed as in the case of three of the six terms for the s2p3 configuration in carbon (Moore [1949]). 

It would seem obvious that efforts should be concentrated on following up the many leading observations which have been reported and determining the structure of the substances already isolated. However, re-examination of the biology and chemistry of species which have yielded insecticidal compounds in the past certainly should not be overlooked. Dr. Beckman will show that careful investigation of such a well-known commercial preparation as pyre-thrum extract can reveal the presence of unsuspected and active new constituents Dr. Moore will indicate how some such observations may be turned to profit through synthesis of simple analogs. 

Available through Early English Books Online. Added extra t.p. The second lash of Alazonomastix conteining a solid and serious reply to a very uncivill answer to certain observations upon Anthroposophia theomagica, and Anima magica abscondita. A reply to Thomas Vaughan s The man-mouse taken in a trap. Vaughan answered with The second wash, or, The moore scour d once more... 

Unlike electron and scanning tunneling microscopy, the use of fluorescent dyes in monolayers at the air-water interface allows the use of contrast imaging to view the monolayer in situ during compression and expansion of the film. Under ideal circumstances, one may observe the changes in monolayer phase and the formation of specific aggregate domains as the film is compressed. This technique has been used to visualize phase changes in monolayers of chiral phospholipids (McConnell et al, 1984, 1986 Weis and McConnell, 1984 Keller et al., 1986 McConnell and Moy, 1988) and achiral fatty acids (Moore et al., 1986). 

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