The graphical tools (see Section 4) showed that the logarithmic transformation applied to both the response (concentration ratio) and the explanatory variable sacrifice time makes the relationship between the two variables approximately linear. In this section we will examine the relationship between the logarithm of concentration ratio (LNRATIO) and the eight explanatory variables with the fol...

In this paper we extend the results of de la Peña [3]. The main method that we use is the theory of decoupling, which has been developed in de la Peña [2] and [3]. Decoupling theory provides a general framework for analyzing problems involving dependent random variables as if they were independent. We will apply the theory of decoupling as in de la Peña [3] and some new inequalities for indepen...

<p style='text-indent:20px;'>In this paper, we develop a dynamic control model to investigate monopolist's investment strategies in product innovation, process innovation and advertising-based goodwill. The significant features of our study are: (ⅰ) considering the effect quality on goodwill; (ⅱ) instantaneous cost producing using machinery and/or skilled labour; (ⅲ) customers' demand fun...

In this paper, we use optimum control methods to determine optimal budgetary policies for Austria over a five-year horizon. Optimal fiscal policies are calculated using the algorithm OPTCON. Optimal policies are compared to a simulation using extrapolated values of budgetary policy variables in terms of their performance with respect to Austrian macroeconomic targets. Policy tradeoffs between t...

the aim of this investigation was to prepare, characterize and optimize the aceclofenac proniosomes using central composite design and carry out stability studies. three independent variables selected were molar ratio of drug to lipid (x1), surfactant loading (x2) and volume of hydration (x3). based on central composite design, 16 batches of proniosomes were prepared by slurry method and evalua...