The description of an open quantum system's decay almost always requires several approximations as to remain tractable. Here, we first revisit the meaning, domain and seeming contradictions a few most widely used such approximations: semi-group Markovianity, linear response theory, Wigner--Weisskopf rotating-wave approximation. Secondly, derive effective time-dependent theory corresponding gene...

The fundamental results of A. Connes which determine a complete set of isomorphism classes for most injectlve factors are discussed in detail. After some introductory remarks which lay the foundation for the subsequent discussion, an historical survey of some of the principal lines of the investigation in the classification of factors is presented, culminating in the Connes-Takesakl structure t...

The mutual effects of depressive symptoms between couples have long been reported; however, it remains unknown whether the spousal concordance in differs depending on relationships. Data 291 married from Korean Social Life, Health, and Aging Project (KSHAP) were examined. KSHAP collected global network data target population living one village over eight years across five waves. A seemingly unr...

This study has utilised the Seemingly Unrelated Regression (SUR) estimator method to explore spillover effects of “technology” and “knowledge” from foreign direct investment (FDI) on Malaysian labour productivity. The focus was medium-low technology low-technology industries 2000 2018. findings showed that presence FDI spillovers as diffusion channels increased productivity were greater through...

(Submitted to Phys. Rev. 0) *. (a). (b). (cl. cd). tel. (f). (g). (h). (iI. Cj).ABSTRACT A high statistics study of 9 decays into baryon final states has been done uith the MARK II detector at SPEAR. A detailed test of bar-yon-antibaryon decay modes is presented. Substantial resonance formation is observed in multibody decays of the 4' involving baryons. Branching ratios for a large number of d...

Background: Executive compensation has become a controversial topic globally. Recent and past incidents of labour unrest, including those that plagued the South African mining sector in 2012, highlighted level controversy on subject. Purpose: The purpose this study was to investigate relationship between executive company performance Johannesburg Stock Exchange (JSE). Methodology: quantitative ...