Editorial

IN a recent article entitled ‘Cruck construction: a survey of the problems’, J. T. Smith used distribution maps to show that the theory of a Germanic origin for the cruck cannot be maintained, and that the evidence of cruck distribution argues strongly for a Celtic origin.¹ He concluded that the ‘progress from ridge-posts to crucks occurred during the first four centuries of the Christian era and perhaps earlier’ but had to admit that ‘no cruck construction has yet been recognized by excavation in Britain’.² This paper presents details of a cruck building of late or sub-Roman date found at Latimer in Buckinghamshire, during excavations in the vicinity of the Romano-British villa.     

Considering the effects of the Byzantine–Islamic transition: Umayyad glass tesserae and vessels from the <Emphasis Type="Italic">qasr</Emphasis> of Khirbet al-Mafjar (Jericho,Palestine)

The paper reports and discusses data obtained by archaeological and archaeometric studies of glass vessels and tesserae from the qasr of Khirbet al-Mafjar (near Jericho, Palestine). Archaeological contextualisation of the site and chrono-typological study of glass vessels were associated to EPMA and LA–ICP–MS analyses, performed to characterise the composition of the glassy matrix (major and minor components as well as trace elements). Analyses allowed achieving meaningful and intriguing results, which gain insights into the production and consumption of glass vessels and tesserae in the near East during the Umayyad period (seventh–eighth centuries). Within the analysed samples, both an Egyptian and a Levantine manufacture have been identified: such data provide evidence of a double supply of glass from Egypt and the Syro-Palestinian coast in the Umayyad period occurring not only in the glassware manufacture but also in the production of base glass intended to be used in the manufacture of mosaic tesserae. Thus, the achieved results represent the first material evidence of a non-exclusive gathering of glass tesserae from Byzantium and the Byzantines in the manufacture of early Islamic mosaics.     

Reliability-based Strength Amplification Factors for Structures with Asymmetric Yielding

A reliability-based methodology to estimate strength amplification factors for structures with asymmetric yielding is proposed. The approach is based on structural demand hazard analyses. Nonlinear time-history analyses of tridimensional simplified systems are carried out. The effects of two orthogonal components of the seismic ground motions and soil-structure interaction, are considered. Results show that the expected ductility demand of systems with asymmetric yielding may be much higher than those of symmetric systems. A simplified mathematical expression (which is function of the ratio between the fundamental vibration period of the system and that of the soil, ductility demand, and level of asymmetric yielding) is proposed to estimate the amplification factors. The expression is applied successfully to a 9-story reinforced concrete building exhibiting asymmetric yielding produced by tilting.     

A cripple from the medieval hospital of Sts James and Mary Magdalen,Chichester

The skeletal remains of a medieval leper from the hospital of Sts James and Mary Magdalene, Chichester, demonstrate osseous alterations in possible response to altered posture and crutch-aided locomotion. This individual provides further insight into the possible identification of osseous changes commensurate with maintained abnormal posture and strenuous use of one limb to aid locomotion. In this regard, it allows an appreciation and assessment of skeletal plasticity as a possible response to trauma and disease processes.     

Comparative Seismic Risk Assessment of Basilica-type Churches

ABSTRACT

This paper discusses the seismic risk assessment of a Basilica-type church according to the provisions of the Italian Guidelines. A comparison between the results obtained with local and global approaches is reported, based on a knowledge process aimed to characterize the geometric and mechanical parameters required for a reliable structural analysis. To perform the global analyses the finite element technique was employed, with proper assumptions to account for the nonlinear behavior of masonry. Illustrating a case study, the paper critically discusses about the employability of pushover analysis methods for the seismic assessment of basilica-type churches.     

India's response to the 1971 East Pakistan crisis: hidden and open reasons for intervention

Based on recently declassified materials from the Indian government archives and on the private papers of the principal secretary to the Indian prime minister, this article investigates how India formulated its response to the 1971 East Pakistan genocidal crisis that culminated with the third Indo-Pakistani war. India's victory changed the balance of power in South Asia: Bangladesh emerged as a new independent state, while Pakistan was significantly reduced. The 1971 war is cited in the international literature as one of the first cases of humanitarian intervention in world history. The Indian official position, recently reinforced by a new major publication, highlights the ‘humanitarian’ character of the 1971 Indo-Pakistan war, depicting a reluctant India compelled to intervene by international inactivity towards the atrocity. This article contests this interpretation and argues that humanitarian considerations were only one side of the picture. Clear political interests drove the actions of New Delhi, which autonomously formulated a specific strategy aimed at making capital out of the dramatic humanitarian crisis. In advancing this argument, this article contributes to the complex debate about humanitarian intervention by observing that the inability of the UN system to intervene is bound to open the way to two possible outcomes: one is the continuation of the genocidal massacres; the other is the unauthorized humanitarian armed intervention by a regional power, which is likely to act according to its own interests. The specific case under review demonstrates that unauthorized armed intervention cannot per se always be branded as deplorable, since in certain cases such a scenario is better than no intervention at all.