Numerical classification of curvilinear structures for the identification of pistol barrels

This paper demonstrates a numerical pattern recognition method applied to curvilinear image structures. These structures are extracted from physical cross-sections of cast internal pistol barrel surfaces. Variations in structure arise from gun design and manufacturing method providing a basis for discrimination and identification. Binarised curvilinear land transition images are processed with fast Fourier transform on which principal component analysis is performed. One-way analysis of variance (95% confidence interval) concludes significant differentiation between 11 barrel manufacturers when calculating weighted Euclidean distance between any trio of land transitions and an average land transition for each barrel in the database. The proposed methodology is therefore a promising novel approach for the classification and identification of firearms.     

Popular Nationalism and China’s Japan Policy: the Diaoyu Islands protests, 2012–2013

2012–2013 witnessed a renewed flare-up of anti-Japanese sentiment in Mainland China, followed by a toughening of the People’s Republic of China’s (PRC) Diaoyu Islands policy. Did popular nationalism influence the PRC’s military escalation? A lack of transparency in elite Chinese decision-making puts a definitive answer to this question beyond our reach. However, this article utilizes qualitative and quantitative analyses of anti-Japanese discourse and deeds in both cyberspace and on the streets of urban China to argue that the circumstantial evidence is compelling: nationalist opinion is a powerful driver of China’s Japan policy. The demands of nationalist legitimation appear to pressure the elite to respond to popular nationalism. Should one or more Chinese die at the hands of the Japanese navy or air force, therefore, the popular pressure for escalation and war will likely be more than China’s leaders can manage.     

Homelessness—The local authorities' approach

This article reviews the initial experience of Scottish local authorities in accommodating the significant and far‐reaching changes to service provision arising from the Local Government Act 1988. It considers some issues relevant to the changing environment and culture of local government, now operating in a regime of enforced tendering, and considers some relevant policy and practice implications for local authorities. It is not intended to be a definitive study but rather an attempt to analyse some key themes and issues related to management of the tendering process and of tendered services themselves. It is based on our discussions with various officers and members; we are grateful for their willing assistance.     

B. Reviews: general

EUROPE'S FUTURE IN THE ARAB VIEW. Edited by Dieter Beilenstein. (Paper of the Institute for International Relations, No.7), Saarbrücken, Breitenbach, 1981. pp.163.

A CHANGING IMAGE: AMERICAN PERCEPTIONS OF THE ARAB‐ISRAELI DISPUTE. By Richard H. Curtiss. Washing D.C., American Educational Trust, 1982.

THE BATTLE OF BEIRUT: WHY ISRAEL INVADED LEBANON. By Michael Jensen. London, Zed Press, 1982.

FIRE OF ISLAM. By Desmond Meiring. London, Wildwood House, 1982.

PUBLIC DUTIES IN ISLAM: THE INSTITUTION OF THE HISBA. By Ibn Taymiya, Al‐Shaykh Al‐Imam Taqi Al‐Din Ahmad (trans. Mukhtar Holland). (Islamic Economic Series 3), Leicester, The Islamic Foundation, 1982.

ISSUES IN ISLAMIC BANKING: SELECTED PAPERS. By M.N.Siddiqui. (Islamic Economic Series, 4), Leicester, The Islamic Foundation, 1983.

REGESTEN PUBLIZIERTER SAFAWIDISCHER HERRSCHERURKUNDEN: ERLASSE UND STAATSSCHREIBEN DER FRUHEN NEUZEIT IRANS. By Renate. Schimkoreit. (Islamkuhdliche Untersuchungen, Bd 68), Berlin, Klaus Shwarz Verlag, 1982. pp. 552. DM.87.

THE HISTORY OF THE BRITISH PETROLEUM COMPANY.‐ VOLUME I: THE DEVELOPING YEARS 1901–1932.. By R.W.Ferrier. Cambridge University Press, 1982. pp.801. £37.50.

THE CHALLENGE OF ENERGY: POLICIES IN THE MAKING. Edited by Mohammad W. Khouja. (Energy Resources and Policies of the Middle East and North Africa.) London‐New York, Longman, 1981. pp.127. Paperback.

THE CAMBRIDGE HISTORY OF IRAN. Volume 3: THE SELEUCID, PARTHIAN AND SASANIAN PERIODS. Edited by Ehsan Yarshater. Vol. 3(1), pp. lxxv, 624, 48 pl., 4 line drawings, 13 maps; vol.3(2), pp.xix, thereafter pagination continuous with that of 3(1), ending at p.1488, 99 pl. (4 in colour), 25 line drawings, 3 maps. Cambridge, Cambridge University Press, 1983. £37.50.

TA ‘LIKI‐ZADE'S ?EHNAME‐YI HÜMAYUN: A HISTORY OF THE OTTOMAN CAMPAIGN INTO HUNGARY 1593–94. Edited with introduction and notes by Christine Woodhead. (Islamkundliche Untersuchungen, Band 82.) vii, pp.421, map. Berlin, Klaus Schwarz Verlag, 1983.

OTTOMAN YEAR BOOKS (SALNAME AND NEVSAL). Compiled by Hasan Duman. Istanbul, Research Centre for Islamic History, Art and Culture (IRCICA), 1402/1982. pp.144.

THE CRISIS OF TURKISH DEMOCRACY. By C.H.Dodd. Hull, Eothen Press, 1983. pp.136. £9.50 (cloth); £4.95 (paperback).

CULT, GHETTO AND STATE: THE PERSISTENCE OF THE JEWISH QUESTION. By Maxime Rodinson. London, Al Saqi Books, 1983. pp.239. £5.95.     

A. Reviews: general

i. The Arab Economy: Past Performance and Future Prospects. by Yusif A.Sayigh. Oxford University Press, 1982. pp. 175.

ii. The Arab Predicament: Arab Politics and Practice since 1967. By Fouad Ajami. Cambridge University Press, 1982. pp. 220. £4.95 (paperback of hardback edn., 1981).

iii. The Arabic Documents in the Archives of the British Political Agency Kuwait, 1904–1949 (IOR: R/15/5) ([ British Academy]Oriental Documents V). By Julia Ashtiany. London, India Office Library and Records (published under the auspices of the British Academy Oriental Documents Committee), 1982. pp.xxxi, 373, P1.4.

iv. Traditional Crafts of Saudi Arabia. By John Topham and others. London, Stacey International Publishers, 1982. pp.192, 275 illustrations (colour), 6 (black and white), 2 maps. £22.50.

v. Yemen: Political History, Social Structure and Legal System. By Isam Ghanem. London, Arthur Probsthain, pp.26. £4.00.

vi. Sidi Ameur: a Tunisian Village. By Nadia Abu Zahra. London, Ithaca Press, 1982. pp.238, 2 tables, 3 maps, 4 diagrams, 7 appendices. £11.50.

vii. Tchad/Lybie: La querelle des frontières. By Bernard Lanne. Paris, Editions Karthala, 1982. pp.251, 2 maps. FF 68.

viii. Women in Islam: Tradition and Transition in the Middle East. By Naila Minai. London, John Murray, 1981. pp.283. £8.95.

ix. Faith and Power: The Politics of Islam. By Edward Mortimer. London, Faber and Faber, 1982. pp.431. £10.50 (paperback £5.95).

xi. Pan‐Turkism in Turkey: A Study of Irredentism. By Jacob M.Landau. London, C.Hurst & Co., 1981. pp.219. £11.50.

xii. The Modernization of Turkey: From Atatürk to the Present Day. By Walter F. Weiker. New York & London, Holmes and Meier, 1981. pp.303.     

Health Canada unveils plan to distribute marijuana for medical use

Under pressure from the courts, Health Canada reluctantly comes up with a distribution plan to provide dried cannabis and seeds to patients using medical marijuana. The plan has been greeted with considerable criticism