By classical results of G.C. Evans and G. Choquet on “good” kernels G in potential theory, for every polar Kσ-set P, there exists a finite measure μ P such that its Gμ is infinite set admits exactly if only Gδ-set. A known application Evans’ theorem yields the solutions generalized Dirichlet problem open sets by Perron-Wiener-Brelot method using harmonic upper lower functions. It shown that, an...

Gareth Evans’ account of Identifi cation-freedom (IF), which he develops in Chapters 6 and 7 of The Varieties of Reference (henceforth VR) is almost universally misunderstood. Howell is guilty of this same misunderstanding, and as a result claims to have mounted a criticism of Evans, when in fact he has not. I will take the occasion of Howell’s otherwise insightful article to clarify Evans’ pos...

Traditional techniques for determining the root loci were developed by Evans. Given the characteristic equation {1 + ( ) ( ) = 0}, Evans root locus method requires the magnitude of ( ) ( ) to be equal to minus one and is well established for determining the pole locations as the system gains are changed. In this paper, nontraditional techniques for developing the root loci of control systems ar...

The dye-dilution method for the determination of plasma volume presents several problems, one of which is the estimation of dye concentration in plasma. It is with this problem that the present paper is primarily concerned. The most frequently used dye is Evans blue, T 1824. The colorimetric estimation of this dye in plasma is open to a number of possible errors, particularly those introduced b...

The advantages of a near-infrared variant of the Barnes-Evans method for estimating distances to Cepheid variables are described and quantiied. A surface brightness-color relation for K photometry and the (V ?K) 0 color index is established using modern , high-precision angular diameters from optical interferometers. Applied to data for the galactic (cluster) Cepheid U Sgr, this method yields a...

We study the accuracy of data on some local topographic attributes derived from digital elevation models (DEMs). First, we carry out a test for the precision of four methods for calculation of partial derivatives of elevations. We ® nd that the Evans method is the most precision algorithm of this kind. Second, we produce formulae for root mean square errors of four local topographic variables (...

Any opinions expressed in this memoir are those of the author(s) and do not necessarily reflect the views of the National Academy of Sciences. University of Rome on a Sheldon Traveling Fellowship from Harvard. He began his teaching career in 1912 as assistant professor of mathematics at the newly established Rice Institute , now Rice University, in Houston, Texas. He became professor there in 1...

Evans syndrome is an uncommon condition defined by the combination (either simultaneously or sequentially) of immune thrombocytopenia (ITP) and autoimmune haemolytic anaemia (AIHA) with a positive direct antiglobulin test (DAT) in the absence of known underlying aetiology. This condition generally runs a chronic course and is characterised by frequent exacerbations and remissions. First-line th...

Announcing a New Journal Section: Community Outreach MICHELE EVANS, BEVERLY MOY National Institute on Aging, Health Disparities Research Section, Laboratory of Epidemiology and Population Sciences, National Institutes of Health, Bethesda Maryland, USA; Breast Oncology Program, Massachusetts General Hospital, Boston, Massachusetts, USA Disclosures of potential conflicts of interest may be found ...

Extending recent results in the isentropic case, we use a combination of asymptotic ODE estimates and numerical Evans-function computations to examine the spectral stability of shock-wave solutions of the compressible Navier–Stokes equations with ideal gas equation of state. Our main results are that, in appropriately rescaled coordinates, the Evans function associatedwith the linearized operat...