C in firm governance is often associated with inbound and outbound movements of key decision makers. This research extends that observation by treating mobility as a trigger of demographic change in management teams that, in turn, influences organizational survival. Mobility occasions transformations in demographic profiles both within a firm and among firms sharing a competitive arena. In the ...

ALFONSO BUENO-OROVIO, VÍCTOR M. PÉREZ-GARCÍA ‡ , AND FLAVIO H. FENTON Abstract. In this paper, we propose a numerical method to approximate the solution of partial differential equations in irregular domains with no-flux boundary conditions by means of spectral methods. The main features of this method are its capability to deal with domains of arbitrary shape and its easy implementation via Fa...

Direct torque control (DTC) of Switched reluctance motor is known to have simple control structure with comparable performance. However, the role of optimal selection of the voltage space vector is one of the weakest points in a conventional DTC drive. In this paper optimal selection of voltage space vectors is achieved using GA based neural network. Simulations results validate the proposed in...

This paper presents a new rotor flux oriented linearizing control with speed estimation scheme for adjustable speed induction motor (IM) drive. In this scheme, rotor flux oriented vector control is used to linearize the IM drive, and decouple torque and flux. Also, a stator flux based flux estimator is used to estimate the synchronous speed. The motor speed is estimated by measuring only two li...

Two new analytical solutions of self-induction equation, in Riemannian manifolds are presented. The first represents a twisted magnetic flux tube or flux rope in plasma astrophysics, which shows that the depending on rotation of the flow the poloidal field is amplified from toroidal field which represents a dynamo. The value of the amplification depends on the Frenet torsion of the magnetic axi...

Sources of plasma glucose and glucose turnover were investigated in 8-week-old (pre-diabetic) and 13-week-old (diabetic) Zucker (fa/fa) rats after a 24-h fast. Intraperitoneal (2)H(2)O was administered and [3,4-(13)C(2)]glucose and [U-(13)C(3)]propionate were infused into conscious active rats. (13)C nuclear magnetic resonance analysis of monoacetone glucose derived from blood glucose indicated...

We report a fast neutron and gamma induced radiation dose and flux monitoring study during the nano-particle production at the proton beam irradiation facility. The monitoring results will be used for understanding of the activation of irradiated samples and the effect to the nano-particle production. A cylindrical shape of BC523A liquid scintillator was used for the fast neutron and gamma moni...

Microtubule dynamics have key roles in mitotic spindle assembly and chromosome movement [1]. Fast turnover of spindle microtubules at metaphase and polewards flux of microtubules (polewards movement of the microtubule lattice with depolymerization at the poles) at both metaphase and anaphase have been observed in mammalian cells [2]. Imaging spindle dynamics in genetically tractable yeasts is n...

A simplified model for the stationary, axisymmetric structure of magnetized winds with a polytropic equation of state is presented. The shape of the magnetic surfaces is assumed to be known (conical in this paper) within the fast magnetosonic surface. The model is non-self-similar. Rather than solving the equilibrium perpendicular to the flux surfaces everywhere, solutions are found at the Alfv...