Five treatments including Conway medium, media containing 0.1, 0.17, 0.3 and 0.5 mg l-1 ferrous (Fe; in the first experiment), media with 1, 1.26, 1.59, 2 mg l-1 concentrations of phosphorous (P; in the second experiment) and a pure sample of Tetraselmis suecica were cultured under laboratory conditions. Growth rate of the algae was determined using the optical density method at 750 nm and numb...

five treatments including conway medium, media containing 0.1, 0.17, 0.3 and 0.5 mg l-1 ferrous (fe; in the first experiment), media with 1, 1.26, 1.59, 2 mg l-1 concentrations of phosphorous (p; in the second experiment) and a pure sample of tetraselmis suecica were cultured under laboratory conditions. growth rate of the algae was determined using the optical density method at 750 nm and numb...

Several useful identities involving the fixed point or itération opération are conséquences ofjust the Conway theory axioms. In this paper we give several characterizations of thefree Conway théories including a concrete description based on "aperiodîc" homomorphisms of flowehart schemes. It follows from this concrete description that the équations that hold in Conway théories are exactly the v...

Conway hemirings are Conway semirings without a multiplicative unit. We also define iteration hemirings as Conway hemirings satisfying certain identities associated with the finite groups. Iteration hemirings are iteration semirings without a multiplicative unit. We provide an analysis of the relationship between Conway hemirings and (partial) Conway semirings and describe several free construc...

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Each surreal number has a unique Conway name (or normal form) that is characteristic of its individual properties. The paper answers the following two questions that are naturally suggested by the surreal number system’s structure as a lexicographically ordered full binary tree. (i) Given the Conway name of a surreal number, what are the Conway names of its two immediate successors? (ii) Given ...

A major feature in computing history is the evolving ability to “write on silicon” and thereby create novel computational structures increasingly fast, compact power-efficient hardware. In 1978, Xerox PARC researcher MIT professor Lynn Conway, together with Caltech's Carver Mead, developed a simple powerful method of designing fabricating very large-scale integration (VLSI) integrated circuits....