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In recent years, logistic regression (Rasch) models have been used in political science for estimating ideal points of legislators and Supreme Court justices. These models present estimation and identifiability challenges, such as improper variance estimates, scale and translation invariance, reflection invariance, and issues with outliers. We resolve these(More)
For voters with ‘social’ preferences, the expected utility of voting is approximately independent of the size of the electorate, suggesting that rational voter turnouts can be substantial even in large elections. Less important elections are predicted to have lower turnout, but a feedback mechanism keeps turnout at a reasonable level under a wide range of(More)
A monoclonal antibody directed against a cell surface chondroitin sulfate proteoglycan of human melanoma cells, 9.2.27, and its diphtheria toxin A chain (DTA) conjugate were investigated for their effects on in vitro protein synthesis and in vivo tumor growth of human melanoma cells. The 9.2.27 IgG and its DTA conjugate display similar serological(More)
Kinetic properties of D( -)-specific lactate dehydrogenase (D-lactate : diphosphopyridine nucleotide oxidoreductase, EC from Escherichia coli B indicate the following. 1. The reaction catalyzed is essentially unidirectional, the oxidation of D( -)-lactate with diphosphopyridine nucleotide as coenzyme proceeding at only about 0.01% of the rate of(More)