ELECTION of a genotype which gives rise to similar phenotypes in different environments is one evolutionary strategy which may result in high adaptedness of a population to the environments in which it lives. Presumably, the stability of certain traits is the outcome of a long history of natural selection tending towards an adaptive phenotype. Several investigators have attempted to select stra...

The Mean-variance framework proposed by Markowitz is the most common model for portfolio selection problem. The most important concept in his theory is diversification. Diversification means designing an investment portfolio that reduces exposure risk by combining a variety of investments. But actually, the portfolios’ weights are often extremely concentrated on few assets when using mean-varia...

This paper addresses the QR decomposition and UD factorization based square-root algorithms of the recursive least-squares (RLS) Wiener fixed-point smoother and filter. In the RLS Wiener estimators, the Riccati-type difference equations for the auto-variance function of the filtering estimate are included. Hence, by the roundoff errors, in the case of the small value of the observation noise va...

We introduce $k$-variance, a generalization of variance built on the machinery random bipartite matchings. $K$-variance measures expected cost matching two sets $k$ samples from distribution to each other, capturing local rather than global information about measure as increases; it is easily approximated stochastically using sampling and linear programming. In addition defining $k$-variance pr...

The appropriateness of a suitably modified Varshni-Shukla potential has been tested for a series of alkali halide crystals by determining the numerical values of the potential parameters involved, using Hildebrand's equation of state and thereby computing a few lattice properties. Comparison between the different sets of theoretical and experimental results infers that the present theoretical v...

Fina Lovren, Yi Pan, Praphulla C. Shukla, Adrian Quan, Hwee Teoh, Paul E. Szmitko, Mark D. Peterson, Milan Gupta, Mohammed Al-Omran, and Subodh Verma Division of Cardiac Surgery, Keenan Research Centre, Li Ka Shing Knowledge Institute, Division of General Internal Medicine, and Cardiometabolic Risk Initiative, St. Michael’s Hospital, Toronto; Canadian Cardiovascular Research Network, Toronto; T...

drought stress is the most important environmental constraint contributing to grain yield instability of maize(zea mays l.). evaluation of maize genotypes under different stresses would be useful for identifying genotypes that combine stability with high yield potential for stress-prone areas. this study was conducted to estimate grain yield stability of maize hybrids and to identify hybrids th...