In the traditional portfolio theory, we select optimum portfolios by using the first two moments of return distributions, i.e., mean and variance. Traditional portfolio theory assumes that the investors try to maximize the expected return and minimize the variance in portfolio returns. When the...

In this paper, we present a novel maximum power point tracking method for a photovoltaic system consisting of a photovoltaic panel with a power electronic converter; the whole is feeding a battery. This maximum powerpoint depends on the temperature and irradiation conditions. A robust control...

The Indus flood in 2010 was one of the greatest river disasters in recent history, which affected more than 14 million people in Pakistan. Although excessive rainfall between July and September 2010 has been cited as the major causative factor for this disaster, the human interventions in the...

To find out whether our government is spending an astronomical amount of taxpayer’s money publicising itself rather than disseminating information, facts and figures were assimilated. By tracking five leading national dailies for government advertisements, over the month of June 2003.,...