Book reviews

Poverty, Progress and Exclusion: an Economic History of Latin America in the Twentieth Century. By Rosemary Thorp. Baltimore, MD: Johns Hopkins University Press for the Inter‐American Development Bank and the European Union, 1998. Pp.xiv + 369. £20.50. ISBN 1 886938 35 0

Economic Dynamism in the Asia‐Pacific: The Growth of Integration and Competitiveness. Edited by Graham Thompson. London: Routledge, 1998. Pp.402. £50 and £14.99. ISBN 0 415 17273 X and 17274 8

India and Pakistan: The First Fifty Years. Edited by Selig S. Harrison, Paul H. Kreisberg, and Dennis Kux. Cambridge: Cambridge University Press, 1999. Pp.xii + 217. £32.50 and £10.95. ISBN 0 521 64185 3 and 64585 9

Agencies in Foreign Aid: Comparing China, Sweden and the United States in Tanzania. Edited by Goran Hyden and Rwekaza Mukandala. New York: St. Martin's Press, 1999. Pp.ix + 246. $69.95. ISBN 0 312 22098 7

Market Integration, Regionalism and the Global Economy. Edited by Richard E. Baldwin, Daniel Cohen, Andre Sapir and Anthony Venables. Cambridge: Cambridge University Press, 1999. Pp. xix + 344. £45 and £16.95. ISBN 0 521 64589 1 and 0 521 64181 0

Instruments of Change: Motivating and Financing Sustainable Development. By Theodore Panayotou. Earthscan in association with the United Nations Environment Programme, 1998. Pp.240. £19.95. ISBN 1 85383 467 X

Famine in Africa: Causes, Responses and Prevention. By Joachim von Braun, Tesfaye Teklu and Patrick Webb. Baltimore, MD and London: The Johns Hopkins University Press, 1999. Pp.xvii + 218. £32.50. ISBN 0 8018 6121 7

The East Asian Welfare Model: Welfare Orientalism and the State. Edited by Roger Goodman, Gordon White and Huck‐ju Kwon. London and New York: Routledge, 1998. Pp.206. £17.99. ISBN 0 415 17211 X

Critical Development Theory: Contributions to a New Paradigm. Edited by Ronaldo Munck and Denis O'Hearn. London and New York: Zed Books, 1999. Pp.xx + 217. £39.95 and £22.50. ISBN 1 85649 637 6 and 638 4

Streetlife China: Transforming Culture, Rights and Markets. By Michael Dutton. Cambridge: Cambridge University Press, 1999. Pp.xvi + 304. £13.95 (US$19.95) and £37.50 (US$54.95). ISBN 0 521 63719 8 and 63141 6     

Distinguishing accurate from inaccurate eyewitness identifications with an optional deadline procedure

Abstract

Two experiments examined the efficacy of an optional deadline lineup procedure for distinguishing correct from incorrect eyewitness identification decisions. The procedure involved briefly presenting the lineup, removing the lineup from view, then giving participants the option of either making an identification decision or viewing the lineup again. When compared with participants operating under a forced deadline (i.e. forced to respond after the brief presentation) or standard lineup instructions, the optional deadline procedure identified participants with an impressive probability of having made a correct identification when used with target-present lineups and biased instructions. With unbiased instructions, the optional deadline produced clear discrimination between correct and incorrect identification decisions for choosers and, importantly, also for non-choosers. Possible strategies for improving the efficacy of the procedure are suggested.     

Poverty and Support for Militant Politics: Evidence from Pakistan

Policy debates on strategies to end extremist violence frequently cite poverty as a root cause of support for the perpetrating groups. There is little evidence to support this contention, particularly in the Pakistani case. Pakistan's urban poor are more exposed to the negative externalities of militant violence and may in fact be less supportive of the groups. To test these hypotheses we conducted a 6,000‐person, nationally representative survey of Pakistanis that measured affect toward four militant organizations. By applying a novel measurement strategy, we mitigate the item nonresponse and social desirability biases that plagued previous studies due to the sensitive nature of militancy. Contrary to expectations, poor Pakistanis dislike militants more than middle‐class citizens. This dislike is strongest among the urban poor, particularly those in violent districts, suggesting that exposure to terrorist attacks reduces support for militants. Long‐standing arguments tying support for violent organizations to income may require substantial revision.     

The regulation of cognitive enhancement devices: extending the medical model

This article presents a model for regulating cognitive enhancement devices (CEDs). Recently, it has become very easy for individuals to purchase devices which directly modulate brain function. For example, transcranial direct current stimulators are increasingly being produced and marketed online as devices for cognitive enhancement. Despite posing risks in a similar way to medical devices, devices that do not make any therapeutic claims do not have to meet anything more than basic product safety standards. We present the case for extending existing medical device legislation to cover CEDs. Medical devices and CEDs operate by the same or similar mechanisms and pose the same or similar risks. This fact coupled with the arbitrariness of the line between treatment and enhancement count in favour of regulating these devices in the same way. In arguing for this regulatory model, the paper highlights potential challenges to its implementation, and suggests solutions.     

Souvenir knife: a retained transcranial knife blade

Upon necroscopic examination of a homeless male found comatose in the street and pronounced dead at a medical center 12 hours later, a sharp tip of a knife lodged in the right parietal region of his skull was incidentally discovered. The blade transected the diploe and penetrated the cerebral cortex. Subsequent police investigation revealed that this was the remnant of a stabbing attempt on his life several months prior to his death. The cause of death was determined to be unrelated to the metallic blade fragment, thus making it a truly incidental and rare finding of a "souvenir knife." Nevertheless, since the injury sustained in the stabbing was potentially life threatening, the investigation into that assault was reopened.A case report is presented, along with a brief review of the literature on "souvenir objects."     

The identification of the emulsifier component of emulsion explosives by liquid chromatography-mass spectrometry

ABSTRACT: The widespread availability of emulsion explosives for commercial blasting has inevitably lead to their diversion for criminal misuse. Present techniques for the characterization of emulsion explosives and their residues is generally based on the detection and identification of the oxidizer and the hydrocarbon components. Use of these components is problematic for residue identification because ammonium nitrate, waxes, and oils are relatively common in the urban environment and even their co-detection does not exclude them being sourced from materials other than explosives. The detection of the emulsifier component offers increased evidential value as certain emulsifiers used in explosive formulations are manufactured for that specific use, or have limited environmental distribution. In the current study liquid chromatography-mass spectrometry (LC-MS) was utilized for the characterization of two emulsifiers in common use; ethanolamine adducts of polyisobutylene succinic anhydride and sorbitol mono-oleate (SMO). The LC-MS technique enabled the detection of both emulsifiers in preblast samples; however, only SMO was detected in postblast residues. The analysis of the hydrocarbon component by gas chromatography-mass spectrometry was achieved in the same procedure.