This paper is concerned with a characterization of all symmetric solutions to the discrete-time algebraic Riccati equation (DARE). Dissipation theory and quadratic difference forms from the behavioral approach play a central role in this paper. Along the line of the continuous-time results due to Trentelman and Rapisarda [H.L. Trentelman, P. Rapisarda, Pick matrix conditions for sign-definite s...

BACKGROUND Identifying factors predictive of mortality may be important to decrease risk associated with cardiac implantable electrical device (CIED) replacement procedures. This study aimed to determine whether clinical factors and complications independently associate with death and to develop a mortality risk prediction tool after CIED replacement. METHODS AND RESULTS The prospective REPLA...

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In this paper, the diurnal variations of aerosol optical properties and their influences on the estimation of daily average direct aerosol radiative effect (DARE) in the North China Plain (NCP) are investigated based on in situ measurements from Haze in China campaign. For ambient aerosol, the diurnal patterns of single scattering albedo (SSA) and asymmetry factor (g) in the NCP are both highes...

The discrete-time algebraic Riccati equation (DARE) have extensive applications in optimal control problems . We provide new theoretical supports to the stability properties of solutions DARE and reduce convergence conditions under which accelerated fixed-point iteration (AFPI) can be applied compute numerical DARE. In particular, we verify that AFPI is R-superlinear when spectral radius closed...

With this paper I aim to demonstrate that a look beyond the Aristotelian square of opposition, and a related non-conservative view on logical determiners, contributes to both the understanding of Aristotelian syllogistics as well as to the study of quantificational structures in natural language.