Organic solar cells (OSCs) offer the possibility of harnessing the sun's ubiquitous energy in a low-cost, environmentally friendly and renewable manner. OSCs based on small molecule semiconductors (SMOSCs)--have made a substantial improvement in recent years and are now achieving power conversion efficiencies (PCEs) that match those achieved for polymer:fullerene OSCs. To date, all efficient SM...

I reconsider Stiglitz’s (1977) problem of monopolistic insurance with a continuum of types. Using a suitable transformation of control variables I obtain an analytical characterization of the optimal insurance policies. Closed form solutions and comparative statics results for special cases are provided. JEL: D42, D82

Hydrogen desorption and adsorption properties of the fullerene materials C60 , C70, and fullerite ~a mixture of C60 and C70) were measured volumetrically using a Sievert’s apparatus. Over several cycles of isotherm measurements at 77 K, the hydrogen storage capacities of one of the fullerite samples increased from an initial value of 0.4 wt % for the first cycle to a capacity of 4.4 wt % for th...

Article history: Received 23 December 2008 Available online 18 January 2009 JEL classification: C70

Article history: Received 4 October 2010 Available online 9 November 2010 JEL classification: C70 C72 C73

Article history: Received 4 April 2013 Available online 27 November 2013 JEL classification: C70 D82

Phenol- and naphthalene-degrading indigenous Pseudomonas pseudoalcaligenes strain C70 has great potential for the bioremediation of polluted areas. It harbours two chromosomally located catechol meta pathways, one of which is structurally and phylogenetically very similar to the Pseudomonas sp. CF600 dmp operon and the other to the P. stutzeri AN10 nah lower operon. The key enzymes of the catec...

The class of maximin actions in general decision problems is characterized. JEL classification: C70, D81.

Article history: Received 20 June 2007 Available online 31 July 2010 JEL classification: C70 D82