Green factor

The /5- and e-tocopherol are determinable when spots in their respective positions give no colour on spraying with the dianisidine reagent (see below). However, if the dianisidine reaction shows the presence of y- or 77-tocopherol the analyst may either assume that /5- and e-tocopherol are absent or attempt a differential analysis of the four substances by chromatographic separation of nitroso-derivatives, such as has recently been described by Marcinkiewicz and Green. Factors for y- and r/-tocopherol should be used even though /5- or e-tocopherol, or both, may be present but masked. 

Tables 4 and 5 show properties of ground mica products. For all forms of ground mica the index of refraction is 1.58 wt %, Mohs hardness is 2.5, oil absorption (Brit. Stand. 3483) is 60.75%, water solubihty (Brit. Stand. 1765) is <0.3%, the phericity factor is 0.01, and the softening point in °C is 1538. For Microni2ed and wet ground micas the brightness (green filter), pH, and apparent density in kg/m are 75, 5.2, and 160—224, respectively for dry ground mica, 66—75, 6.2, and 192—561, respectively (1).

Figure 9.11 Amino acid sequences of homeodomains from four differenf franscription factors Anfp is from fhe Antennapedia gene in the fruitfly Drosophila, a2 is from the yeast Mat o2 gene, eng is from fhe engrailed gene in Drosophila and POU is from fhe POU homeodomain in the mammalian gene Oct-1. Residues colored green form the hydrophobic core of the homeodomain, blue form nonspecific interactions with the DNA backbone and red form contacts with the edges of the DNA bases.

Figure 10.23 Domain arrangement along the polypeptide chains of three families of transcription factors b/z, b/HLH and b/HLH/z. All three have a basic region (blue) that binds DNA. Dimerization is achieved by the zipper region (purple) in the b/z family, by the Hl-loop-H2 region (red-yellow-green) in the b/HLH family and by a combination of both the zipper and the HLH regions in the b/HLH/z family.

Figure 10.28 Schematic diagram of the binding of the transcription factor Max to DNA. The two monomers of Max (blue and green) form a dimer through both the helix-loop-helLx regions which form a four-helix bundle like MyoD, and the zipper regions, which are arranged in a coiled coil. The N-terminal basic regions bind to DNA in a way similar to GCN4 and MyoD. (Adapted from A.R. Ferre-D Amare et al., Nature 363 38-4S, 1993.)...

Figure 10.30 Amino acid sequences of the hellx-loop-helix region of some members of the b/HLH and b/HLH/zlp families of transcription factors. Residues that form the hydrophobic core of the four-helix bundle are colored green and a conserved lysine residue is blue. The loop region between HI and H2 is highly variable in length but must be at least four or five residues long.

Figure 6.3. The variation of dielectric constant e and the loss factor e" with frequency. (After Frith and Tucketl, reproduced by permission of Longmans, Green and Co. Ltd.)...

As a matter of fact there is an infinite number of possible choices for the effective medium. But if one deals with an alloy problem, it is well-known that the best single-site effective medium is given by the CPA. In fact, it fulfills all the criteria mentioned above. That is, the Green s function for the CPA effective medium decays, apart from an oscillating factor, exponentially as, where I is the mean free... 

In any scheme for creating a landscape on reclaimed land the ultimate aim will be not only to create a green landscape but also to provide an environment in which the ecosystem will develop quickly. Some important factors that must be taken into account here are ... 

Even very near the sea coast, however, sulphate usually predominates over chloride. The presence of atmospheric pollution is thus an essential factor in the development of green patina. 

Since Raman scattered light intensity is very weak, of the order of 10-7 of the excitation line intensity, more powerful laser sources than the He-Ne laser are often needed. The Ar+ laser emits various lines in the region from 457.9 nm to 514.5 nm, of which the most powerful lines (typically — 700 mW) at 488.0 nm (blue) and 514.5 nm (green) are preferred. Furthermore, two other factors which favor the use of the high frequency excitation lines are the peak sensitivity of the photomultipliers in this blue-green region (Fig. 8) and the fourth power Raman intensity law... 

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