We consider the gluon fusion production cross section of a scalar Higgs boson in models where fermion and scalar massive colored particles are present. We report analytic expressions for the matrix elements of gg → Hg, qq̄ → Hg, and qg → Hq processes completing the calculation of the NLO QCD corrections in these extended scenarios. The formulas are written in a complete general case, allowing a ...

This paper presents a theoretical approach to optimal control problems (OCPs) governed by a class of control systems with discontinuous right-hand sides. A possible application of the framework developed in this paper is constituted by the conventional sliding mode dynamic processes. The general theory of constrained OCPs is used as an analytic background for designing numerically tractable sch...

In this paper, we present Grounded Analytic Research (GAR) as a method to build theory by synthesizing empirical findings from multiple studies that has been conducted by a single researcher. GAR incorporates concepts from grounded theory, analytic research and systematic literature review. The method was applied in a doctoral dissertation work to build the theoretical concept of Demand Sustain...

The spinless Salpeter equation is the combination of relativistic kinematics with some static interaction potential. The nonlocal nature of the Hamiltonian resulting from this approximation renders difficult to obtain rigorous analytic statements on resulting solutions. In view of this unsatisfactory state of affairs, we calculate analytic upper bounds on the involved energy levels, and, for th...

A new theoretical Evans function condition is used as the basis of a numerical test of viscous shock wave stability. Accuracy of the method is demonstrated through comparison against exact solutions, a convergence study, and evaluation of approximate error equations. Robustness is demonstrated by applying the method to waves for which no current analytic results apply (highly nonlinear waves fr...

Since the stability problem was first outlined by Gottfredson and Hirschi (1990) in their influential work A General Theory of Crime it has received a steady stream of attention from the academic community. Researchers have studied juveniles and adults and have implemented a variety of methodological and statistical approaches. Many of these studies do not show support for the theoretical conce...

Historically, in virtually all developed economies there seems to be clear evidence of an inverse relationship between female labor supply and fertility. However, particularly in the last decade or so, the rela-tionship across countries has been positive: for example countries like Germany, Italy and Spain with the lowest fertility rates also have the lowest female participation rates. We accep...

The problem and the solution. Although meta-analysis has been widely recognized as a powerful empirical research method, it has not been well acknowledged that it can be a valuable tool for theory-building purposes. This chapter describes common meta-analytic approaches and outlines a process of building theory in applied disciplines through this approach. Contributions of meta-analysis to theo...

Research on argumentation has increased our understanding of knowledge construction, group learning, and scaffolding structures in CSCL although analyses of argumentation pose many difficulties. This could be due to the many theoretical positions that can be taken when approaching discourse data. In this paper, we use three popular analytic methods (interactional, content-specific, and linguist...

The most common approach to creating interactive narrative involves interactive experiences which take place within the constraints of a previously constructed story. In this paper we explore an alternative approach in which participants in a virtual world, e.g., a game, simulation or large online community improvise events. These events form the raw material for the subsequent creation of narr...