Integrated risk/cost planning models for the US Air Traffic system

A prototype network planning model for the U.S. Air Traffic control system is described. The model encompasses the dual objectives of managing collision risks and transportation costs where traffic flows can be related to these objectives. The underlying structure is a network graph with nonseparable convex costs; the model is solved efficiently by capitalizing on its intrinsic characteristics. Two specialized algorithms for solving the resulting problems are described: (1) truncated Newton, and (2) simplicial decomposition. The feasibility of the approach is demonstrated using data collected from a control center in the Midwest. Computational results with different computer systems are presented, including a vector supercomputer (CRAY-XMP). The risk/cost model has two primary uses: (1) as a strategic planning tool using aggregate flight information, and (2) as an integrated operational system for forecasting congestion and monitoring (controlling) flow throughout the U.S. In the latter case, access to a supercomputer is required due to the model's enormous size

Strategies to Retain Older Workers

As the aging baby boom generation approaches retirement, employers are confronting an evertightening labor market. Defined benefit pensions have long been important source of retirement income, and many employers would like to continue offering this valuable benefit to their employees. Yet many of these plans provide strong incentives to retire early, which may not be consistent with workplace needs. In this chapter we explore options employers face when redesigning their pension plans to create positive incentives for workers to voluntarily work past traditional early retirement age. Incentives may also include work life programs such as eldercare and phased retirement, to help older workers balance their work and family responsibilities

A Model for Classical Space-time Co-ordinates

Field equations with general covariance are interpreted as equations for a target space describing physical space time co-ordinates, in terms of an underlying base space with conformal invariance. These equations admit an infinite number of inequivalent Lagrangian descriptions. A model for reparametrisation invariant membranes is obtained by reversing the roles of base and target space variables in these considerations.Comment: 9 pages, Latex. This was the basis of a talk given at the Argonne National Laboratory 1996 Summer Institute : Topics on Non-Abelian Duality June 27-July 1

Diisopropylamide and TMP turbo-grignard reagents : a structural rationale for their contrasting reactivities

A neutral dimeric molecule in crystal form, the diisopropylamido turbo-Grignard reagent "(iPr2N)MgCl⋅LiCl" (see structure; blue N, red O, green Mg, yellow Cl, black C) separates into several charged ate species in dynamic exchange with each other in THF solution as determined by a combination of EXSY and DOSY NMR studies

Perception of job opportunities among low-income groups in Missouri

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Patrick Mulvey, Oral History Interview, May 19, 2015

Major Topics Covered: Coming to MD Anderson The Office of Development under presidents Charles A. LeMaistre, John Mendelsohn, and Ronald DePinho Working with MD Anderson presidents The evolution of fundraising as a practice Changes in MD Anderson’s donor base MD Anderson’s capital campaigns Mechanisms for making appeals for donations The Moon Shots Program and fundraising The MD Anderson mission and culturehttps://openworks.mdanderson.org/mchv_interviewsessions/1178/thumbnail.jp

Patrick Mulvey, Oral History Interview, May 11, 2015

Major Topics Covered: Coming to MD Anderson The Office of Development under presidents Charles A. LeMaistre, John Mendelsohn, and Ronald DePinho Working with MD Anderson presidents The evolution of fundraising as a practice Changes in MD Anderson’s donor base MD Anderson’s capital campaigns Mechanisms for making appeals for donations The Moon Shots Program and fundraising The MD Anderson mission and culturehttps://openworks.mdanderson.org/mchv_interviewsessions/1177/thumbnail.jp

Properties of the Scalar Universal Equations

The variational properties of the scalar so--called ``Universal'' equations are reviewed and generalised. In particular, we note that contrary to earlier claims, each member of the Euler hierarchy may have an explicit field dependence. The Euler hierarchy itself is given a new interpretation in terms of the formal complex of variational calculus, and is shown to be related to the algebra of distinguished symmetries of the first source form.Comment: 15 pages, LaTeX articl