Local quasi hidden variable modelling and violations of Bell-type inequalities by a multipartite quantum state

We introduce for a general correlation scenario a new simulation model, a local quasi hidden variable (LqHV) model, where locality and the measure-theoretic structure inherent to an LHV model are preserved but positivity of a simulation measure is dropped. We specify a necessary and sufficient condition for LqHV modelling and, based on this, prove that every quantum correlation scenario admits an LqHV simulation. Via the LqHV approach, we construct analogs of Bell-type inequalities for an N-partite quantum state and find a new analytical upper bound on the maximal violation by an N-partite quantum state of S_{1}x...xS_{N}-setting Bell-type inequalities - either on correlation functions or on joint probabilities and for outcomes of an arbitrary spectral type, discrete or continuous. This general analytical upper bound is expressed in terms of the new state dilation characteristics introduced in the present paper and not only traces quantum states admitting an S_{1}x...xS_{N}-setting LHV description but also leads to the new exact numerical upper estimates on the maximal Bell violations for concrete N-partite quantum states used in quantum information processing and for an arbitrary N-partite quantum state. We, in particular, prove that violation by an N-partite quantum state of an arbitrary Bell-type inequality (either on correlation functions or on joint probabilities) for S settings per site cannot exceed (2S-1)^{N-1} even in case of an infinite dimensional quantum state and infinitely many outcomes.Comment: Improved, edited versio

Her Majesty’s inspectorate of schools in England and Wales 1860-1870

The aim of this thesis is to examine in detail the Inspectorate in the 1860’s and in particular the effect of the1862 Revised Code on the inspectors' work. The background to the Revised Code is outlined, with emphasis on the early development of the Inspectorate and the extent to which the I846 Pupil-Teacher Minutes changed the nature of the inspectors' task. After a chapter on the Report of the Newcastle Commission, the evolution of the Revised Code and the debate which led to its alteration are examined and placed in the context of contemporary social attitudes. This includes a section on inspectors' opinions of the Revised Code and, in the following chapter, the effect of the new Code on the inspection of schools. Throughout, attention is given to the influence of the religious bodies on elementary education and its inspection. The careers of the inspectors, which are given fully in an appendix, are analysed and, using their own writings as evidence, the inspectors' attitudes to their work are summarised. This examination of the writings of the H.M.I.s is then broadened to cover their opinions on the educational issues of the 1860s. The extent to which these writings were subjected to censorship by the Privy Council Office is discussed in the context of the developing relationship between the government and its officials and the emphasis by the Office on the subordinate nature of the Inspectorate. After studying the effects of the Revised Code on the inspectors, teachers and school managers, this discussion is then extended into a fuller exploration of the relationship between the Education Office and its Inspectorate in the 1860s.The thesis includes a brief survey of other school inspectors and ends with an account of the part that the H.M.I.s played in the genesis of the 1870 Education Act

Do it Right or Not at All: A Longitudinal Evaluation of a Conflict Managment System Implementation

We analyzed an eight-year multi-source longitudinal data set that followed a healthcare system in the Eastern United States as it implemented a major conflict management initiative to encourage line managers to consistently perform Personal Management Interviews (or PMIs) with their employees. PMIs are interviews held between two individuals, designed to prevent or quickly resolve interpersonal problems before they escalate to formal grievances. This initiative provided us a unique opportunity to empirically test key predictions of Integrated Conflict Management System (or ICMS) theory. Analyzing survey and personnel file data from 5,449 individuals from 2003 to 2010, we found that employees whose managers provided high-quality interviews perceived significantly higher participative work climates and had lower turnover rates. However, retention was worse when managers provided poor-quality interviews than when they conducted no interviews at all. Together these findings highlight the critical role that line mangers play in the success of conflict management systems

Bundled competencies, configuration and activity systems: understanding the basis for competitive advantage in ING Direct

12 page(s

Threshold bounds for noisy bipartite states

For a nonseparable bipartite quantum state violating the Clauser-Horne-Shimony-Holt (CHSH) inequality, we evaluate amounts of noise breaking the quantum character of its statistical correlations under any generalized quantum measurements of Alice and Bob. Expressed in terms of the reduced states, these new threshold bounds can be easily calculated for any concrete bipartite state. A noisy bipartite state, satisfying the extended CHSH inequality and the perfect correlation form of the original Bell inequality for any quantum observables, neither necessarily admits a local hidden variable model nor exhibits the perfect correlation of outcomes whenever the same quantum observable is measured on both "sides".Comment: 9 pages; v.2: minor editing corrections; to appear in J. Phys. A: Math. Ge

Design Considerations for a Free Space Transportation and Work Station Capsule

A concept for a low cost, low development risk Work Station Capsule for manned extra-vehicular operations is presented. Requirements for such a capsule are established and a conceptual design is outlined. The result is a low cost design providing the astronaut with improved protection and mobility and the means to make his activities more effective and safer. Operational considerations with emphasis on handling of emergencies are discussed. The authors conclude that such a design represents a highly desirable interim approach as a supplement to safe extra-vehicular operations