This article studies the environmental and societal impacts of a polluting monopoly when society strives for clean environment. Two scenarios are considered: (1) government levies an tax to induce investment in emission-reducing technology, (2) monopolist engages corporate social responsibility (CSR). It is shown that taxation has lower impact, but undertakes CSR activities only if abatement te...

Research and development on sustainable alternatives to fossil fuels have become a prime focus for the last couple of decades. Hydrogen, one Earth's most abundant elements, holds great potential as energy carrier. However, Hydrogen is lighter than air, it does not exist in pure form atmosphere often found compounds, such water. The abundance seawater this regard makes an almost inexhaustible so...

Eight dogs underwent combined hepatic/portal vein catheterization and infusion of D4-cortisol in order to determine the relative contributions of the viscera and liver to splanchnic cortisol production. D4-cortisol concentrations progressively decreased from 2.6 +/- 0.1 to 2.4 +/- 0.1 to 1.7 +/- 0.1 microg/dl (P < 0.001 by ANOVA) from hepatic artery to portal vein to hepatic vein, respectively,...