Conservative-type

The Scheffe procedure is powerful because of it robustness, yet it is very conservative. Type I error (the false positive rate) is held constant at the selected test level for each comparison. 

While not necessarily protease resistant, 8 the thioamide replacement for the normal amide linkage is a synthetically accessible and conformationally conservative type of backbone substitution. 

Other examples of conservative-type trace metals include caesium and rubidium. Caesi-um(l) exists at an average concentration of 2.2 nmol kg (Brewer et al., 1972) as the relatively unreactive monovalent cation Cs. Its oceanic residence time has been estimated to be 3 X 10 yr (Broecker and Peng, 1982). Rubidium exists as the monovalent cation Rb at a concentration of 1.4 pmol kg (Spencer et al., 1970) with an oceanic residence time estimated to be 3 Myr. 

Conservative type Some of the trace elements such as U, W, and Re form stable ionic species, UOiiCOs) , WOl , and ReOj in sea water. Hence, their oceanic behavior is conservative (follow salinity) and their mean residence times in the ocean are generally long (e.g., >10 years). There is no significant variation in their concentration between different oceanic basins. 

Some minor constituents show a conservative type of distribution in the oceans. They are the alkali ions Li, Rb, and Cs, besides Mo04 and TD. Obviously, the organisms only use small amounts of molybdenum. However, in waters with anoxic basins (some fiords and the Black Sea), molybdate is depleted. In addition, WO, ReO, and U(VI) show conservative-type oceanic distributions. 

Owing to their low reactivity, conservative type transition metals and heavy metals (V, Mo, W, Re, and Tl) are present in sea water at relatively high concentrations that are in constant proportion to salinity. Conservative metals have long mean oceanic residence times ( 10 y), their distributions are considerably homogeneous throughout the ocean due to the ocean s 1000-year circulation, and their concentrations are controlled by physical processes (e.g., advection and turbulent mixing). 

Conservator type transformers are fitted with an overhead tank which is approximately half full of the oil or liquid insulant. The overhead tank is allowed to breath to atmosphere as the liquid level varies with the average temperature inside the transformer. It breathes through a small vessel filled with silica gel which absorbs the water vapour that may pass into or out of the transformer. 

Orchard, A. E. and Maslin, B. R. (2003). Proposal to conserve the name Acacia (Leguminosae Mimosoideae) with a conserved type. Taxon, 52,362-363. 

R = recycled type. S = scavenged type, C = conservative type ° SIO Pier sample ... 

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