Let T be a linear operator on the space of all m × n complex matrices such that the rank of T(A) is the rank of A whenever the rank of A is k. We show that there are nonsingular m × m and n × n matrices U and V respectively such that...

The diagnostic capabilities of immuno-electron microscopy have been developed by using antibodies labelled with colloidal gold-protein A. A method termed gold-labelled antibody decoration (GLAD) is described and results using the techni...

On the basis of Okubo's dispersion approach, the resonance contribution to the current algebra result for nonleptonic decays of hyperons is calculated via Regge theory. A four parameter best-fit solution to both s and p-wave amplitudes ...

This letter warns about the incorrect use of the popular Jarque-Berg test for normality of residuals in the case of small- and medium-size samples. It also provides a natural modification of the test that mitigates the problem. Several...

This paper introduces the concept of a partial geometry of dimension three, extending the concept of an (r, k, t) partial geometry (which may be called of dimension two) due to Bose. An association scheme is defined on this system which...

Indirect censoring is defined as the effect on observed variables of censoring on unobserved variables. Methods of testing for indirect censoring are discussed, and exemplified, using a bivariate Farlie-Gumbel-Morgenstern distribution. ...

The electric utility industry must learn from past deregulation mistakes in order to develop successful corporate structures, services, and technologies that will succeed in a competitive environment. Failure to act will leave the avera...

We study a probabilistic algorithm for the computation of the centroidal Voronoi tessellation which is a Voronoi tessellation of a given set such that the associated generating points are centroids (centers of mass) of the corresponding...

New computer comparisons of the sequences of mammalian matrix metalloproteinases have established for the first time strong links with bacterial metalloproteinases. We also propose that there are five groups in the family of matrix meta...

A covariant splitting of the total angular momentum of a spin particle into an orbital and a spin part is obtained by treating the Dirac equation as a subsidiary condition for the solutions of the Klein-Gordon equation of a spinor fiel...