A Note on Equilibrium Systems from a Dialectical /tensional/ Point of View

Equilibrium systems form dialectical or tensional point of vie

Neutrino Mixing Discriminates Geo-reactor Models

Geo-reactor models suggest the existence of natural nuclear reactors at different deep-earth locations with loosely defined output power. Reactor fission products undergo beta decay with the emission of electron antineutrinos, which routinely escape the earth. Neutrino mixing distorts the energy spectrum of the electron antineutrinos. Characteristics of the distorted spectrum observed at the earth's surface could specify the location of a geo-reactor, discriminating the models and facilitating more precise power measurement. The existence of a geo-reactor with known position could enable a precision measurement of the neutrino oscillation parameter delta-mass-squared.Comment: 6 pages, 6 figures, minor revisions, submitted to PR

Post-Majority Child Support in Washington

Simply stated, the purpose of child support is to provide necessary elements of support to those typically incapable of self-support. The definition of necessary elements constantly changes to meet the demands of an increasingly complex society. And although child support is limited to necessities, what is necessary also depends upon the social status and financial resources of the parents and is not limited to bare essentials unless those criteria so dictate. Accordingly, courts retain continuing jurisdiction to modify support decrees as the ability of the parents to provide support and the needs of the children change. In light of the purpose of child support, this comment explores the extent to which Washington courts may order post-majority child support and the sources of their authority to do so

Post-Majority Child Support in Washington

Simply stated, the purpose of child support is to provide necessary elements of support to those typically incapable of self-support. The definition of necessary elements constantly changes to meet the demands of an increasingly complex society. And although child support is limited to necessities, what is necessary also depends upon the social status and financial resources of the parents and is not limited to bare essentials unless those criteria so dictate. Accordingly, courts retain continuing jurisdiction to modify support decrees as the ability of the parents to provide support and the needs of the children change. In light of the purpose of child support, this comment explores the extent to which Washington courts may order post-majority child support and the sources of their authority to do so

Relativistic many-body calculations of the Stark-induced amplitude of the 6P1/2 -7P1/2 transition in thallium

Stark-induced amplitudes for the 6P1/2 - 7P1/2 transition in Tl I are calculated using the relativistic SD approximation in which single and double excitations of Dirac-Hartree-Fock levels are summed to all orders in perturbation theory. Our SD values alpha S = 368 a0 3 and beta S= 298 a 0 3 are in good agreement with the measurements alpha S=377(8) a 0 3$ and beta S = 313(8) a 0 3 by D. DeMille, D. Budker, and E. D. Commins [Phys. Rev. A 50, 4657 (1994)]. Calculations of the Stark shifts in the 6P1/2 - 7P1/2 and 6P1/2 - 7S1/2 transitions are also carried out. The Stark shifts predicted by our calculations agree with the most accurate measured values within the experimental uncertainties for both transitions

A Linear Iterative Unfolding Method

A frequently faced task in experimental physics is to measure the probability distribution of some quantity. Often this quantity to be measured is smeared by a non-ideal detector response or by some physical process. The procedure of removing this smearing effect from the measured distribution is called unfolding, and is a delicate problem in signal processing, due to the well-known numerical ill behavior of this task. Various methods were invented which, given some assumptions on the initial probability distribution, try to regularize the unfolding problem. Most of these methods definitely introduce bias into the estimate of the initial probability distribution. We propose a linear iterative method, which has the advantage that no assumptions on the initial probability distribution is needed, and the only regularization parameter is the stopping order of the iteration, which can be used to choose the best compromise between the introduced bias and the propagated statistical and systematic errors. The method is consistent: "binwise" convergence to the initial probability distribution is proved in absence of measurement errors under a quite general condition on the response function. This condition holds for practical applications such as convolutions, calorimeter response functions, momentum reconstruction response functions based on tracking in magnetic field etc. In presence of measurement errors, explicit formulae for the propagation of the three important error terms is provided: bias error, statistical error, and systematic error. A trade-off between these three error terms can be used to define an optimal iteration stopping criterion, and the errors can be estimated there. We provide a numerical C library for the implementation of the method, which incorporates automatic statistical error propagation as well.Comment: Proceedings of ACAT-2011 conference (Uxbridge, United Kingdom), 9 pages, 5 figures, changes of corrigendum include