The dominant poles of a transfer function are specific eigenvalues of the state space matrix of the corresponding dynamical system. In this paper, two methods for the computation of the dominant poles of a large scale transfer function are studied: two-sided Rayleigh Quotient Iteration (RQI) and the Dominant Pole Algorithm (DPA). Firstly, a local convergence analysis of DPA will be given, and t...

OBJECTIVES The development, implementation, and evaluation of policies may play an important role in promoting health behaviours such as physical activity. The Ontario Ministry of Education (OME) recently mandated Memorandum No. 138 requiring daily physical activity (DPA) for Ontario elementary students in grades one through eight. The purpose of this paper is to examine implementation strategi...

In the title compound, [Ni(C(14)H(8)O(4))(C(10)H(8)N(2))(H(2)O)(2)](n), the Ni(II) atom is coordinated in a slightly distorted octa-hedral geometry by two water mol-ecules, two N atoms from a 2,2'-bipyridine ligand and two O atoms from the carboxyl-ate groups of two 2,2'-biphenyl-dicarboxyl-ate (2,2'-dpa) ligands. The 2,2'-dpa ligand acts as a bridge between neighbouring Ni(II) atoms, forming o...

The Dynamic Programming Algorithm (DPA) was developed in the fifties. However, it is sometimes still used nowadays in various fields because it can easily find the global optimum in certain optimization problems. DPA has been applied to problems of one, two or three dimensions. When the dimension of the problem solved by DPA is equal to one the complexity of the algorithm is polynomial but if t...

Water-dispersed organic nanoparticles (NPs) constructed by the conjugated molecule 2,5,2',5'-tetra(4'-N,N-diphenylaminostyryl)biphenyl (DPA-TSB) with a high luminescence and large two-photon absorption (TPA) section were fabricated via the reprecipitation method. The average size of the NPs can be controlled from 40 nm to 80 nm by adjusting the reprecipitation conditions. The NPs in water dispe...

New plant cells arise at the meristems, where they divide a few times before they leave the cell-cycle program and start to differentiate. Here we show that the E2Fa-DPa transcription factor of Arabidopsis thaliana is a key regulator determining the proliferative status of plant cells. Ectopic expression of E2Fa induced sustained cell proliferation in normally differentiated cotyledon and hypoc...

The search for new mol-ecular materials with inter-esting magnetic properties, using the pseudohalide azide ion and di-2-pyridyl-amine (dpa, C10H9N3) as a chelating ligand, led to the synthesis and structure determination of the title compound, [Co(N3)2(dpa)2]2SO4·2H2O. The crystal structure comprises discrete [Co(dpa)2(N3)2](+) cations, sulfate anions, as well as H2O solvent mol-ecules. The Co...

The capability of a pulsed Doppler flowmeter combined with a phased-array imaging system to measure volume flow was tested in vitro and in patients undergoing cardiac catheterization. The Doppler-phased-array system (DPA) was used to determine vessel diameter and a superimposed cursor was used to locate the range and angle of the Doppler sample volume. DPA estimates of continuous flow through t...

Many hardware countermeasures against differential power analysis (DPA) attacks have been developed during the last years. Designers of cryptographic devices using such countermeasures to protect their devices have the challenging task to select and implement a suitable combination of countermeasures. Every device has different requirements, and so there is no universal solution to protect devi...

We present an implementation for Differential Power Analysis (DPA) that is entirely based on Graphics Processing Units (GPUs). In this paper we make use of advanced techniques offered by the CUDA Framework in order to minimize the runtime. In security testing DPA still plays a major role for the smart card industry and these evaluations require, apart from educationally prepared measurement set...