The field of values of a matrix is the closed convex subset of the complex plane comprising all Rayleigh quotients, a set of interest in the stability analysis of dynamical systems and convergence theory of matrix iterations, among other applications. Recently, Uhlig proposed the inverse field of values problem: given a point in the field of values, determine a vector for which this point is th...

We report the results of a long-term, multi-site field trial of a situated awareness device for families called the “Whereabouts Clock”. The Clock displayed family members’ current location as one of four privacy-preserving, deliberately coarse-grained categories (HOME, WORK, SCHOOL or ELSEWHERE). In use, the Clock supported not only family co-ordination but also more emotive aspects of family ...

in this article, the second quantization method has been used to investigate some thermodynamic properties of spin-polarized metallic nanowire in the presence of magnetic field at zero temperature. we have been observed that in different magnetic field, the equilibrium energy of system increases as the density increases. the spin-polarization parameter corresponding to the equilibrium state of ...

background when a primary radiation interacts with a medium, the secondary radiations are produced, that the contribution of these secondary radiation should considered in the calculation of dose. build-up factor is a dosimetric correction factor to assume effect of secondary radiation in calculation of dose. calculation of this factor is very difficult and time consuming. due to significance o...

Article history: Received 23 August 2013 Accepted 23 August 2013 Available online xxxx Communicated by K. Soundararajan

We reply to each of the issues raised by Schwartz in a commentary on our article on a comparison of value taxonomies. We discuss two approaches, mentioned in that commentary, the lexical approach and the theory-driven approach, especially with respect to their capacities in covering the domain of values and with respect to the representation of important values in a useful structure. We refute ...

0039-3681/$ see front matter 2012 Elsevier Ltd. A http://dx.doi.org/10.1016/j.shpsa.2012.09.003 E-mail address: [email protected] 1 In this paper, ‘‘contextual factors’’ refer to any facto epistemic values. For a discussion of epistemic values, This paper examines the state of the field of ‘‘science and values’’—particularly regarding the implications of the thesis of transient ...

The generation of spectral portraits requires the speciication of a region in the complex plane which must be predetermined. For cases where little is known a priori about the spectral properties of a matrix, an accurate and eecient means to compute the outer boundaries of the pseudospectra is desirable. It is shown that the eld of values is an eeective way to determine the extremities of the p...

Threshold limit values (TLVs) are intended to protect workers from the severest effects of thermal stress and to establish the exposures to heat in working conditions. Earlier, acute heat strokes often occurred as a result of working in hot environments in Japan. However, acute heat strokes recently sometimes occurred in outdoor work environments such as industrial constructions and agriculture...