New hypothetical field equations (Eqs. (1) and (2)) are further discussed, unifying Maxwell’s equations of the Standard Model (after the electroweak symmetry is spontaneously broken) with the dynamics of hidden sector (expected to be responsible for the cold dark matter). The hidden sector is represented by sterile spin-1/2 Dirac fermions (”sterinos”) and sterile spin-0 bosons (”sterons”) whose...

A new arbitrarily high order method for the solution of the model Boltzmann equation for micro-channel flows in the transitional regime is presented. The Bhattnagar-Gross-Krook approximation of the Boltzmann collision integral is implemented, with Shakhov’s modification, and the resulting system of equations solved by a discrete ordinate method. The method approximates velocity space using a tr...

Purpose The purpose of this paper is to evaluate the benefits an inclusive community singing group towards well-being. Design/methodology/approach This study used exploratory qualitative (EQS) approach. Semi-structured questions were devised and elicit participants’ experiences on impact A thematic approach underpinned by four phases Silences Framework was analyse data. Findings found following...

subject to the initial condition xðt0Þ 1⁄4 x0; t0 $ 0; x0 [ R; ð2Þ where f : 1⁄20;1Þ £ R ! R is a continuous function and t is from a so-called “time scale” T (which is a nonempty closed subset of R). Equation (1) subject to Eq. (2) is known as an initial value problem (IVP) on time scales. If T 1⁄4 R then x 1⁄4 x 0 and Eqs. (1) and (2) become the following IVP for ordinary differential equatio...

The objective of this empirical study is to find ways that best support business performance through the alignment of organizational and technological infrastructures. Adapting Tapscott and Caston's infrastructure themes, the organizational infrastructure includes components such as common vision, cooperation, empowerment, adaptability and learning, and the technological infrastructure addresse...

We study ’t Hooft’s integral equation determining the meson masses Mn in multicolor QCD2. In this note we concentrate on developing an analytic method, and restrict our attention to the special case of quark masses m1 = m2 = g/ √ π. Among our results is systematic large-n expansion, and exact sum rules for Mn. Although we explicitly discuss only the special case, the method applies to the gener...

The weak-field slow-motion limit of fourth-order gravity will be discussed. Let us consider the gravitational theory defined by the Lagrangian Lg = (8πG) −1 ( R/2 + (αRijR ij + βR)l ) . (1) G is Newton’s constant, l a coupling length and α and β numerical parameters. Rij and R are the Ricci tensor and its trace. Introducing the matter Lagrangian Lm and varying Lg + Lm one obtains the field equa...