3,802 research outputs found
Forensic Finance: Enron and Others
In finance, as in pathology, we can learn more from failure than from success. This lecture examines three famous financial failures, Metallgesellschaft’s oil futures business, LTCM and related hedge fund failures, and the current travails of ENRON, and performs a post mortem on each to see what can be learned. Not surprisingly, the cause of death was similar in each case, or, to put it more familiarly, history always repeats itself.
Costs, payments and incentives in family planning programs
A variety of monetary policies regarding contraception exists around the world. These range from high user charges in some countries, to free contraceptives in many, to incentives and disincentives in others. This paper examines these policies, focuses on charges and payments as they existed in early 1988, looks at the consistency of monetary policies within countries, and considers the ethical issues raised by each kind of incentive.Health Monitoring&Evaluation,Adolescent Health,Reproductive Health,Economic Theory&Research,Pharmaceuticals&Pharmacoeconomics
Unravelling an Extra Neutral Gauge Boson at the LHC using Third Generation Fermions
We study the potential to use measurements of extra neutral gauge bosons (Z')
properties in pp collisions at the Large Hadron Collider to unravel the
underlying physics. We focus on the usefulness of third generation final states
(tau, b, t) in distinguishing between models with non-universal Z'-fermion
couplings. We present an update of discovery limits of Z's including the
2010-2011 LHC run and include models with non-universal couplings. We show how
ratios of sigma(pp -> Z' -> ttbar), sigma(pp -> Z' -> bbbar), and sigma(pp ->
Z' -> tau^+tau^-) to sigma(pp -> Z' -> mu^+mu^-) can be used to distinguish
between models and measure parameters of the models. Of specific interest are
models with preferential couplings, such as models with generation dependent
couplings. We also find that forward-backward asymmetry measurements with third
generation fermions in the final state could provide important input to
understanding the nature of the Z'. Understanding detector resolution and
efficiencies will be crucial for extracting results
Storming Little Round Top: The 15th Alabama and Their Fight for the High Ground, July 2, 1863
Vicious Fight Book follows regiment\u27s struggle at Gettysburg At approximately 4 a.m. on July 2, 1863, Colonel William C. Oates prepared his regiment, the 15th Alabama, for a 25 mile march to Gettysburg, a small Pennsylvania crossroads town where General Robert E. Lee\u27s Confedera...
Circuit Synthesis of Electrochemical Supercapacitor Models
This paper is concerned with the synthesis of RC electrical circuits from
physics-based supercapacitor models describing conservation and diffusion
relationships. The proposed synthesis procedure uses model discretisation,
linearisation, balanced model order reduction and passive network synthesis to
form the circuits. Circuits with different topologies are synthesized from
several physical models. This work will give greater understanding to the
physical interpretation of electrical circuits and will enable the development
of more generalised circuits, since the synthesized impedance functions are
generated by considering the physics, not from experimental fitting which may
ignore certain dynamics
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