in recent years, it has become increasingly important to incorporate explicit dynamics in economic analysis. these two tools that mathematicians have developed, differential equations and optimal control theory, are probably the most basic for economists to analyze dynamic problems. in this paper i will consider the linear differential equations on the plane (phase diagram) and elements of nonl...

In their 2017 article, Mannion and Exworthy provide a thoughtful and theory-based analysis of two parallel trends in modern healthcare systems and their competing and conflicting logics: standardization and customization. This commentary further discusses the challenge of treatment decision-making in times of evidence-based medicine (EBM), shared decision-making and personalized medicine. From ...

the aim of this work is to describe the qualitative behavior of the solution set of a givensystem of fractional differential equations and limiting behavior of the dynamical system or flow defined by the system of fractional differential equations. in order to achieve this goal, it is first necessary to develop the local theory for fractional nonlinear systems. this is done by the extension of ...

In this paper principles of extended Kalman filtering theory is developed and applied to simulated on-line electric power systems state estimation in order to trace the operating condition changes through the redundant and noisy measurements. Test results on IEEE 14 - bus test system are included. Three case systems are tried; through the comparing of their results, it is concluded that the pro...

this paper attempts to analyze the consequences of using facebook and how it affects iranian couples, especially where family privacy is concerned. to put it in other words, the paper offers an argument on the question of how facebook membership challenges stability of the family system in the iranian society.  a special focus will be laid on facebook and its effect on transforming social norms...

Kenneth Boulding’s AEA presidential address argued that economics is a moral science. His view derived from his general systems theory thinking, his three systems view of human society, and his early contributions to evolutionary economics. Boulding’s argument that economics could not be value-free should be distinguished from other well-known views of economics as a moral science, such as Gunn...