Fig Tree Group

Heinrichs T.K. and Reimer T.O. (1977) A sedimentary barite deposit from the Archean Fig Tree Group of the Barberton Mountain Land (South Africa). Econ. Geol. 72, 1426-1441. 

Byerly et al. (1986) described probable stromatolites in the Fig Tree Group, preserved in grey-black finely laminated chert. The structures are made primarily of microcrystalline chert, forming low-relief laterally linked domes and in places pseudo-columnar structures. Byerly et al. did not find evidence of microfossils but inferred an organic origin from the morphology of the stmctures. However, Lowe (1994) disputed this evidence and concluded that the structures were not demonstrably of biotic origin. 

Shales and fine grained muds FIG TREE GROUP... 

C-3, Fig Tree Group, Barberton, South Africa (Condie et al. 1970, Wildeman and Condie 1973). 

Peroxidases are enzymes catalysing the oxidation of a variety of organic and inorganic compounds by hydrogen peroxide or related compounds. An extensive list of the sources of peroxidase in plants and animals has been given (Saunders et al., 1964). All of the peroxidases purified so far from plants contain the prosthetic group hemin or ferriprotoporphyrin IX, 3 (Dunford and Stillman, 1976 Hewson and Hager, 1979). Horseradish roots and the sap of fig trees are the richest source of plant peroxidases. 

Combining features typical of both complexes and clathrates (coordinatoclathrate) should provide new possibilities of host-guest control2). They are indicated by the relations specified in Fig. 8, e.g. chemoselectivity or selectivity for functional groups on the one hand, caused by the complex part, and on the other hand constitutional selectivity or selectivity for molecular size and expanse due to the clathrate branche of the diagrammatic family tree of a coordinatoclathrate shown in Fig. 8. 

Percolation theory describes [32] the random growth of molecular clusters on a d-dimensional lattice. It was suggested to possibly give a better description of gelation than the classical statistical methods (which in fact are equivalent to percolation on a Bethe lattice or Caley tree, Fig. 7a) since the mean-field assumptions (unlimited mobility and accessibility of all groups) are avoided [16,33]. In contrast, immobility of all clusters is implied, which is unrealistic because of the translational diffusion of small clusters. An important fundamental feature of percolation is the existence of a critical value pc of p (bond formation probability in random bond percolation) beyond which the probability of finding a percolating cluster, i.e. a cluster which spans the whole sample, is non-zero. 

Fig. 2.1. A tree representing the phylogeny of Wolbachia in arthropods (groups A and B) and filarial nematodes (groups C and D). Group designations correspond to those proposed by Werren etal. (1995) and by Bandi etal. (1998). The names at the terminal nodes are those of the host species. The tree is based on the ftsZgene sequence alignment used by Bandi etal. (1998). The tree was obtained using a distance matrix method (Jukes and Cantor correction neighbour-joining method).

The front yard is the external part of the homestead, usually connected with the approach road. It is generally wide, leveled, often compact, and usually unfertile. The size of the front yard varies depending on the type of the households. The landless poor or marginal groups households normally have a very small front yard and they grow seasonal vegetables either on the ground or on the trellis or on both, and plant few fruit trees, palms, etc. (Fig. 16.3). The small and medium-size households have a relatively... 

Fig. 10. The tree from Fig. 1 with bootstraps shown for the four internal branches. This is a neighbor joining tree, which is originally unrooted. It is shown with a root here for cosmetic purposes, but there is no bootstrap information for the two groups split by this root.

Within the NiFe(Se) hydrogenase family, the unrooted tree (Fig. 2.4) clearly reveals several major lineages. As might be expected, the enzyme groups discussed above all emerge as distinct clades which reflect the major prokaryotic groups and the enzyme... 

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