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Moodies Group

Figure 1 Detrital orthoclase grains (K) in subarkosic sandstone, from Moodies Group, Barberton Mountains, South Africa. Apart from dissolution that may relate to modem outcrop weathering (blue), these feldspars have survived since the Archean (at least 3.2 Ga). Figure 1 Detrital orthoclase grains (K) in subarkosic sandstone, from Moodies Group, Barberton Mountains, South Africa. Apart from dissolution that may relate to modem outcrop weathering (blue), these feldspars have survived since the Archean (at least 3.2 Ga).
Coarse grained arenites and conglomerates MOODIES GROUP... [Pg.16]

Paleosols. Paleosols formed before 2.2 Ga tend to contain iron silicates, rather than siderite-iron carbonate. Rye et al. (1995) used carbonate-silicate mineral equilibria in the 2.75 Ga Mount Roe paleosol to estimate the partitioning of COa between soil and air in the late Archaean. Their calculations suggest a maximum partial pressure of 10 14 (0.04) atmospheres COa in the late Archaean atmosphere, significantly lower than the estimate of Lowe and Tice (2004) based on nahcolite. A lower limit for atmospheric COa comes from the study of siderite-clay mineral equilibria for weathering rinds on clasts in river gravels from the 3.2 Ga Moodies Group of the Barberton greenstone belt, in south Africa (Hessler et al., 2004). In this study the minimum partial pressure for atmospheric COa at 3.2 Ga was calculated to be 2.5 X 10 3 bars at 25°C. [Pg.202]

The most recent development in the synthesis of 1,2,4-triazines has been made by the Moody group (09OL3686). In this work, hydrazides 12 are reacted with copper carbenes derived from the corresponding a-diazo-jS-ketoesters 37. Condensation of intermediate 38 with ammonium acetate furnishes the trisubstituted-l,2,4-triazines 17 (Scheme 13). [Pg.81]

NC124, Moodies Group, Barberton, South Africa (McLennan and Taylor 1983). [Pg.563]

All the relevant variables and parameters are uniquely related through the three dimensionless variables / /VRe, and e/D by the Moody diagram or the Churchill equation. Furthermore, the unknown (DF = ef) appears in only one of these groups (/). The procedure is thus straightforward ... [Pg.171]

The remaining four chapters of the present volume involve topics new to the series. Two of them deal with specific groups of compounds (C. J. Moody on Azodicarbonyl Compounds and T. Sasaki on Heteroada-mantanes ) and two others deal with the Use of Transition Organome-tallic Compounds in Heterocyclic Synthesis (J. L. Davidson and P. N. Preston) and Sulfur Transfer Reagents (M. Davis). [Pg.418]

Dirhodium(II) carboxylate catalysts have been used extensively for the catalysis of carbene insertions. In many cases, impressive selectivities have been achieved (19-21). In an effort to find selective catalysts for carbenoid insertions, Moody screened a series of dirhodium(II) carboxylate catalysts for their ability to catalyze carbenoid Si-H insertion (22). The authors surveyed the commercially available carboxylic acids, -10,000 of which are chiral. The members of this group that contained functionality that is incompatible to the reaction were culled out. The remaining chiral carboxylic acids (-2000 compounds) were then grouped into 80 different clusters. There is no discussion presented for the criteria used in the grouping of the acids. A representative acid from each cluster was then chosen for... [Pg.437]

The method of strueture analysis developed by the Soviet group was based on the kinematieal approximation that ED intensity is directly related (proportional) to the square of structure factor amplitudes. The same method had also been applied by Cowley in Melbourne for solving a few structures. In 1957 Cowley and Moodie introdueed the -beam dynamical diffraction theory to the seattering of eleetrons by atoms and crystals. This theory provided the basis of multi-sliee ealeulations whieh enabled the simulation of dynamieal intensities of eleetron diffraetion patterns, and later electron microscope images. The theory showed that if dynamical scattering is signifieant, intensities of eleetron diffraetion are usually not related to strueture faetors in a simple way. Sinee that day, the fear of dynamical effects has hampered efforts to analyze struetures by eleetron diffraction. [Pg.6]

Other early work includes that of Moody et al. (2001) who spotted anticytokine monoclonals onto the bottom of polystyrene microtiter plates (Max-isorp, Nalge Nunc) and measured cytokine levels in stimulated peripheral blood mononuclear cells. Finally, although not strictly a microarray, the microwell array system developed by Michael Snyder s group at Yale University to measure kinase activity is a simple and elegant approach (Zhu et al., 2000). The "protein chip" is comprised of microwells fabricated in a flexible elastomer of PDMS [poly(dimethylsiloxane)] substrate by a molding process. [Pg.71]

J. Mulzer, in Comprehensive Organic Functional Group Transformations Vol. 5 (Ed. C. J. Moody), Pergamon, Oxford, 1995, p. 121. [Pg.922]

Moody and Rahimtoola reported a short synthesis of staurosporinone (293) without the use of protecting groups at the indole or the lactam nitrogen (761,762). This route involves an intramolecular Diels-Alder reaction of the pyrano[4,3- 7]indol-3-one 1325 and a subsequent cyclization by nitrene insertion. The pyrano[4,3-l7]indol-3-one 1325 was obtained in four steps from ethyl indol-2-yl... [Pg.339]

H. Koplewicz, More Than Moody Recognizing and Treating Adolescent Depression (New Yotk The Betkley Publishing Group,... [Pg.266]

For monographs, see Olah Malhotra, Narang Nitration Methods and Mechanisms-, VCH New York, 1989 Schofield Aromatic Nitration Cambridge University Press Cambridge, 1980 Hoggett Moodie Penton Schofield. Ref. 30. For reviews, see Weaver, in Feuer Chemistry of the Nitro and Nitroso Groups, pt. 2 Wiley New York. 1970. pp. 1-48 de la Mare Ridd, Ref. 59, pp. 48-93. See also Ref. 1. For a review of side reactions, see Suzuki Synthesis 1977, 217-238. [Pg.522]

It is interesting to read what "captains of industry," such as the chairmen of prominent multinational companies, have to say about sustainable development. Sir Marc Moody-Stuart, former chairman of the Committee of Managing Directors of the Royal Dutch/Shell Group of Companies, stated in 1999 in Ref. [5] what sustainable development meant for his company "balancing our own legitimate commercial interests with the wider need to protect and enhance the environment and contribute to social progress and stability."... [Pg.197]

Benthic taxa exhibiting significant differences in abundance (at a = 0.05) between reference and exposure areas were noted. If a taxon was considered to be relatively more tolerant of pollution (such as enrichment in pulp mill effluent), it was listed as an Enrichment Indicator Organism . On a scale from 1 to 10, these taxa have pollution tolerances from 6 to 10 (Moody, 2000). If a taxon was considered to be relatively less tolerant of pollution, it was listed as a Toxicity Indicator Organism . These taxa have pollution tolerances from 1 to 5. Species representing both types of indicator groups were found to show potential effluent-related effects at the Kimberly-Clark mill. The total number of potential effluent-related effects is calculated for comparison with the LTF method case study in Section 7.2. [Pg.156]

For the fueling companies that would have to make the double investment, the choice is not an academic concern. In September 2000, the Royal Dutch/Shell Group, which has invested heavily in hydrogen, raised this very issue. Sir Mark Moody-Stuart, then chairman of Shell, said at a hydrogen conference, Some companies have suggested the use of other transition fuels such as onboard... [Pg.122]

Katritzky AR, Meth-Cohn O, Rees CW, Moody CJ (1995) Comprehensive organic functional group transformations. Pergamon, Oxford... [Pg.176]


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See also in sourсe #XX -- [ Pg.170 ]




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