The ability of Escherichia coli to deaminate Dand L-serine (Gale and Stephenson, 1938) and Dand L-threonine (Chargaff and Sprinson, 1943) has been known for some time, and properties of the partly purified enzymes have been determined (Wood and Gunsalus, 1949; Metzler and Snell, 1952). These enzymes catalyze welldefined, easily measured reactions. Upon discovering that the enzymes are inducible...

In this paper the neutral valuation approach is applied to American and game options in incomplete markets. Neutral prices occur if investors are utility maximizers and if derivative supply and demand are balanced. Game contingent claims are derivative contracts that can be terminated by both counterparties at any time before expiration. They generalize American options where this right is limi...

Guirard, Beverly M. (University of California, Berkeley), and Esmond E. Snell. Nutritional requirements of Lactobacillus 30a for growth and histidine decarboxylase production. J. Bacteriol. 87:370-376. 1964.-The nutritional requirements of Lactobacillus 30a include each of the naturally occurring amino acids, several B vitamins, ascorbic acid, glucose, acetate, and oleate. The nutritional requi...

In order to achieve integrated condition in the girth welding of high pressure natural gas transmission pipelines, the weld zones and its surrounding area should have good mechanical properties. Residual stresses are an important defect especially in the girth welding of the pipeline. In this study, two API X70 steel pipes (with spiral seam weld) of 56 inches outside diameter and 0.780 inch wal...

background and aims: the safe, potent and effective live vaccines against measles, mumps and rubella as important childhood diseases have been available for several decades. several factors can affect the thermal stability of lyophilized vaccine. methods: in this study, the effect of residual moisture on thermal stability of 61 batches of mmr vaccine was investigated using an accelerated method...

Hopkins, R. H. (1943). Nature, Lond., 152, 274. Irwin, J. 0. (1944). In the Press. Lyle, T. K., Macrae, T. F. & Gardiner, P. A. (1944). Lancet, 1, 393. Macrae, T. F., Henry, K. M. & Kon, S. K. (1943). Biochem. J. 37, 225. Sebrell, W. H. & Butler, R. E. (1938). Pubi. HUh Rep., Wash., 53, 2282. Snell, E. E. & Strong, F. M. (1939). Industr. Engng Chem. (Anal. ed.), 11, 346. Williams, R. D., Mason,...

This paper reports an evolutionary approach called Scatter Search, that uses the concept of Pareto optimality to obtain a good approximate Pareto frontier. In order to designate a subset of strategies to be a reference solutions a choice function called Kramer Selection is used. A variant of measure of Kemen-Snell may be used, in our case study, in order to find a diverse set to complement the ...

An algorithm is proposed for determining small-sample confidence intervals for the difference of two binomial success probabilities based on and trials, respectively. The interval covers the true with probability at least for all ! ; it is invariant with respect to relabeling of the two populations and with respect to interchanging the outcomes of success and failure intervals. Coverage and exp...

The growth factors required by Lactobacillus arabinosus 17-5 have been studied extensively by Snell and Wright (I), Isbell (2), and Lewis (3). Investigation of the nitrogen requirement has been limited. Hydrolyzed casein has been found to supply the essential nitrogen when supplemented with tryptophane and cystine. Glutamic acid has been found essential (4), and quantitative levels have been de...

1. Ecophysiological characteristics of eight rainforest species established in mixed-species plantings –Catherine Drane (PhD submitted 1995) 2. Physiological aspects of growing cabinet timber species in plantations – Amanda Snell (PhDsubmitted 1996) 3. Pasture productivity below rainforest trees : an agroforestry trial – Oliver Woldring (BSc Honours1995) 4. Mycorrhizae of tropical r...