Adaptation, the meaning of imprisonment and outcomes after release: the impact of the prison regime

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Quantifying the Scope for Efficiency Defense in Merger Control: The Werden-Froeb-Index

In both US and EU merger control, merger-specific efficiencies are recognized as a possible defense for horizontal mergers that raise competition concerns. We introduce the Werden-Froeb-index (WFI) to assist in evaluating these efficiencies. The index measures the average reduction in marginal costs required to restore pre-merger equilibrium prices and quantities after the merger is consummated. It has low information requirements and can deal with any number of firms in price- or quantity-competition merging fully or partially, and a large class of demand and cost functions. We show how the WFI complements Phase I merger inquiries as a screening mechanism.

PID and PID-like controller design by pole assignment within D-stable regions

This paper presents a new PID and PID-like controller design method that permits the designer to control the desired dynamic performance of a closed-loop system by first specifying a set of desired D-stable regions in the complex plane and then running a numerical optimisation algorithm to find the controller parameters such that all the roots of the closed-loop system are within the specified regions. This method can be used for stable and unstable plants with high order degree, for plants with time delay, for controller with more than three design parameters, and for various controller configurations. It also allows a unified treatment of the controller design for both continuous and discrete systems. Examples and comparative simulation results are pro-vided to illustrate its merit

An audio FIR-DAC in a BCD process for high power Class-D amplifiers

A 322 coefficient semi-digital FIR-DAC using a 1-bit PWM input signal was designed and implemented in a high voltage, audio power bipolar CMOS DMOS (BCD) process. This facilitates digital input signals for an analog class-D amplifier in BCD. The FIR-DAC performance depends on the ISI-resistant nature of this PWM-signal. An impulse response with only positive coefficients was chosen, because of its resistance to deadzone and mismatch. With a DAC current of 0.5 mA, the dynamic range is 111 dB (A-weighted), with SINAD = 103 dB (A-weighted). The current consumption is 1mA for the analog part and 4.8 mA for the digital part. The power consumption is 29 mW at V/sub dd/ = 5 V and the chip area is 2 mm/sup 2/ including the reference diode that can be shared by more channels

Professional capital contested: A bourdieusian analysis of conflicts between professionals and managers

Although Bourdieu paid scant attention to (and in fact discredited) the notion of professionalism, his social theory is well-equipped to understand the evolution of professional work. Professionalism can be conceived as a set of symbolic resources that (re)produce an occupational order, favoring expertise and craftsmanship. In neo-liberal economies this order is contested and professional powers are distrusted; professional work is seen as closed-off and conservative. Managers have become important vehicles for rationalizing and innovating production, and improving "value for money." In fact, managerial "fields" are created, and conflicts between managerial and professional fields are well documented. These conflicts are ironic, as new classes of managers seek classic strategies of professionalization as well as classic forms of professional capital for securing managerial positions. They form professional associations, for instance, and invest in schooling, credentials and work codes. This paper explores conflicts between professionals and managers as "contests over symbolic capital." We argue that professional capital is appropriated by managers in order to distinguish "new" from "old" professional work in larger economized fields of power