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Towards a Typology of Relevance

This essay presents a speculative work on making distinctions among different equally valid types of research relevance. The work is innovative not only because it departs from the extant monistic perspectives, where only narrow forms of relevance are acknowledged, towards a pluralist perspective, but also because it recognizes and accounts for the plurality in the perceptions of relevance among d

Exchange economics as an alternative to distributed optimization

Quadratic optimization subject to linear constraints is a fundamental building-block in many other branches of applied mathematics. However, for large-scale systems, where a common global objective function is neither naturally defined nor easily computable, it is natural to view economic equilibrium theory as an alternative approach to design and analysis. Stability and robustness of equilibria c

Three Roles for Statistical Significance and the Validity Frontier in Theory Testing

This study offers a method for empirically testing theories operationalized in the form of multivariate statistical models. An innovation of the method is that it distinguishes testing into three separate forms, “effect testing,” “prediction testing,” and “theory testing,”where statistical significance plays a separate role in each one. In another innovation, the researcher specifies not only his

Diagonal Lyapunov functions for positive linear time-varying systems

Stable positive linear time-invariant autonomous systems admit diagonal quadratic Lyapunov functions. Such a property is known to be useful in distributed and scalable control of positive systems. In this paper, it is established that the same holds for exponentially stable positive discrete-time and continuous-time linear time-varying systems.

The use of the r* heuristic in covariance completion problems

We consider a class of structured covariance completion problems which aim to complete partially known sample statistics in a way that is consistent with the underlying linear dynamics. The statistics of stochastic inputs are unknown and sought to explain the given correlations. Such inverse problems admit many solutions for the forcing correlations, but can be interpreted as an optimal low-rank a

Law, Community and the 2011 London Riots

Can local communities on the margins of society be charged with the responsibility of maintaining their own social order? What type of law (if any) can bring social order to these communities? Using semi-structured interviews with social workers, police officers, lawyers and other professionals familiar with the Tottenham riots, this chapter offers an inside view into what community means in a runCan local communities on the margins of society be charged with the responsibility of maintaining their own social order? What type of law (if any) can bring social order to these communities? Using semi-structured interviews with social workers, police officers, lawyers and other professionals familiar with the Tottenham riots, this chapter offers an inside view into what community means in a run

Oscillations in coupled enzymic reactions at high concentration of enzyme

The transient-state kinetic consequences of the coupling of a single-enzyme reaction to other metabolic reactions have been examined in generalized terms. Analytical data are presented which specify under what conditions such coupling may lead to an oscillatory transient rate behaviour of a reaction system involving an enzyme operating by a Michaelian mechanism. The results indicate that the prese

Model studies of the regulation of the Calvin photosynthesis cycle by cytosolic metabolites

A kinetic model for photosynthetic carbohydrate formation in the chloroplast of C3 plants is presented which includes consideration of the interaction of the phosphate translocator of the chloroplast envelope with external reactants such as 3-phosphoglycerate, dihydroxyacetone phosphate, and glyceraldehyde 3-phosphate in addition to inorganic (ortho)phosphate. The model is shown to account satisfa