Water samples were collected from river Pandu at six stations where human and animal activities were high. Composite samples were analyzed for dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD) , pH values during dry and wet seasons as well as the harmattan period. The total data points were used to establish relationships between the parameters and data were a...

Biochemical oxygen demand (BOD) is a widely used index of water-quality assessment. Since bioelectrochemical BOD biosensors require anaerobic conditions for anodic reactions, they are not directly used in aerobic environments such as aeration tanks. Normally, the BOD biosensors are closed-type, where the anode is packed inside a closed chamber to avoid exposure to oxygen. In this study, a novel...

We present two systems of differential equations implied by two different models of price discovery. One is the basic Walrasian model, where prices adjust to a security’s own excess demand. The basic Walrasian model does not feature cross-security effects (the price of one security reacts to excess demand in another). The alternative is a model where demand adjusts autonomously to perceived exc...

Information logistics in general addresses demand-oriented information supply in organizations. IT-security has not received much attention in information logistics research. However, integration of security aspects into information logistics methods could be useful for application contexts with strong security requirements. As a contribution to this aspect, the paper investigates the possibili...

The proposed research integrates theories of demand-driven innovation and market value creation to explain (i) the role of demand in driving innovation in information security and (ii) the role of innovation in projecting firm performance thus determining firm market value. Time series and event study analyses are applied to show that malicious attacks, primarily those that exploit software vul...