This paper deals with the development of a model to predict the products’ terminal call rate (TCR) during the warranty period. TCR represents a key information for a quality management department to reserve the necessary funds for product repair during the warranty period. TCR prediction is often carried out by parametric models such as Poisson processes, ARIMA models and maximum likelihood est...

Several methods for testing mediation hypotheses with 2-level nested data have been proposed by researchers using a multilevel modeling (MLM) paradigm. However, these MLM approaches do not accommodate mediation pathways with Level-2 outcomes and may produce conflated estimates of between- and within-level components of indirect effects. Moreover, these methods have each appeared in isolation, s...

A multi-layered environment is a representation of the walkable space in a 3D virtual environment that comprises a set of twodimensional layers together with the locations where the different layers touch, which are called connections. This representation can be used for crowd simulations, e.g. to determine evacuation times in complex buildings. Since the execution times of many algorithms depe...

Abstract: We develop three-dimensional electromagnetic inverse scattering methods to reconstruct buried objects in layered media. The nonlinear inverse problem is solved iteratively via conjugate gradient approach; within each iteration, the problem is linearized by Born and Distorted Born approximations. The forward solution for layered media is provided by the stabilized biconjugate-gradient ...

After injection of 10(8) live Mycobacterium lepraemurium (MLM) into the left hind footpad of mice, there is development of local swelling attributable to a granuloma of the cell-mediated immunity type. Concomitant intravenous inoculation of live MLM delays and may even suppress footpad swelling, the effects being proportional to the intravenous dose of organisms. Concomitant footpad infection a...

Multilevel modeling (MLM) is frequently used to detect group differences, such as an intervention effect in a pre-test–post-test cluster-randomized design. Group differences on the post-test scores are detected by controlling for pre-test scores as a proxy variable for unobserved factors that predict future attributes. The pre-test and post-test scores that are most often used in MLM are summed...

In order to continue our studies in coordination chemistry with pteridine derivatives, four new complexes with general formula MX2(pteridine)2 /nH2O /mCH3CN (M /Cu, Pd, Pt) have been synthesized by reaction of 1-methyllumazine (MLM) and 1,6,7trimethyllumazine (MLMD) and different halide salts in acetonitrile solutions. These compounds have been characterized by means of analytical techniques (e...

The following analytical approaches: queuing network models, stochastic automata networks, stochastic timed Petri nets, stochastic process algebra, Markov chains can be used in performance evaluation of multi–agent systems. In this paper, new approach which is based on PERT networks is presented. This approach is applied in performance evaluation of layered multi–agent system. Time-out mechanis...