Analytic hierarchy process (AHP) is a frequently used method for ranking alternatives. The alternatives to be ranked are modeled based on a set of criteria. The ranking computed by AHP is trusted on faith notwithstanding the fact that a model is an approximation and liable to failure. We present a model to estimate the trust in the AHP ranking. The model helps in determining if it is prudent to...

A research report from the Swedish Environmental Advisory Council, titled A Strategy for Ending Eutrophication of Seas and Coasts, argues that the Baltic Sea is facing an ecological flip, associated with changes characterized by excessive algal bloom and a fishing industry in crisis (MVB 2005). Eutrophication may be the most severe of the consequences faced by the Baltic Sea. According to HELCO...

Soil samples were collected from six different locations in Araba valley, situated between Aqaba port and Dead sea. The samples have been analysed by using gamma-ray spectrometry. From the measured gamma-ray spectra, activity concentrations are determined for (238)U, (232)Th and (40)K. The mean activity concentration for (238)U, (232)Th and (40)K was found to be in the range 19 +/- 1.4 to 38.7 ...