Recent Storm Boulder Deposits on the Beecroft Peninsula,New South Wales,Australia

This paper documents the deposition of large boulders on the Beecroft Peninsula, New South Wales, during a one in four‐year swell event in October 1999. The size of the boulders in relation to the magnitude of the swell suggests that the boulder field at Whale Point on the Beecroft Peninsula is explicable in terms of storm swells alone.     

A Comparison of Radiological and Palaeopathological Diagnostic Criteria for Hyperostosis Frontalis Interna

Hyperostosis frontalis interna (HFI) is a common clinical finding in post-menopausal women, less often in men. The characteristic billowing symmetrical new bone formation is found on the endocranial surface of the skull and rarely causes any significant symptoms. In clinical medicine HFI is diagnosed from its X-ray appearance, whereas in palaeopathology it is diagnosed by direct observation of the skull. There are no standard palaeopathological criteria to diagnose HFI. In past populations HFI appears to be much less common than today, with modern prevalences of up to 70 per cent of women over 40 affected, compared with archaeological prevalences of between 1 and 4 per cent. This discrepancy has been attributed to a younger mean age at death in ancient populations. This study aims to test the hypothesis that the difference in prevalence may be due in part to the differential nature of diagnosis between the two disciplines. A sample of 85 skulls was X-rayed, and the presence of HFI was recorded using radiological criteria. Using this method the results showed a marked increase in the number of cases of HFI to 31 per cent in females in the ancient population. © 1997 by John Wiley & Sons, Ltd. Int. J. Osteoarchaeol., 7 : 157–164 (1997) No. of Figures: 4. No. of Tables: 3. No. of References: 13.     

PRE-COLUMBIAN METALLURGY: TECHNOLOGY,MANUFACTURE, AND MICROPROBE ANALYSES OF COPPER BELLS FROM THE GREATER SOUTHWEST*

Twenty-four cast copper crotals (commonly called bells), one 'spilled bell’, one tinkler bell and a number of minerals from locations throughout the Greater Southwest were analysed for their elemental composition by a PIXE nuclear microprobe at Los Alamos National Laboratory, New Mexico, USA. Sixteen bells contained minor and trace amounts of silver, antimony, arsenic, lead, and in some cases tin, strontium, and selenium. Nine bells contained little or no detectable amounts of these elements. This suggests that several workshops throughout the Greater Southwest and Mexico might have manufactured these bells.     

FINITE FAULT MODELLING OF NEAR-FIELD ROCK MOTIONS IN THE NEW MADRID SEISMIC ZONE

Due to lack of strong motion records, point-source and finite-fault models have been used to simulate far-field motions at Memphis and St. Louis Cities from earthquake events in the New Madrid Seismic Zone. However, near-field rock motions and their associated uncertainties have never been studied within this zone. The objectives of this study are to develop a simple procedure to account for the uncertainty effect of earthquake source parameters, to analyze the sensitivity of near-field rock motions to input source parameters, and finally, to generate rock motions at two sites located within 11 km from the southwestern segment (strike-fault) and a third site bove the Reelfoot Rift (reverse fault) using a well-validated finite-fault simulation program; FINSIM. An equal-weight logic tree was developed to ensure that the assumed uncertainties are within physical, geological, and seismological constraints. For each site, 100 acceleration time histories with various combinations of parameter uncertainties were respectively simulated for an earthquake of M _w 7.0, 7.5, and 8.0 from each of the two faults. Their average spectral accelerations were in good agreement with those derived from the attenuation relation-ships representative to the Central and Eastern United States. Numerical simulations indicated that spectral accelerations are sensitive to the slip velocity, depth to top of fault, fault strike, slip distribution, and hypocentre location along the strike.     

Religion and nationalism: four approaches*

ABSTRACT. Building on recent literature, this article discusses four ways of studying the relationship between religion and nationalism. The first is to treat religion and nationalism, along with ethnicity and race, as analogous phenomena. The second is to specify ways in which religion helps explain things about nationalism – its origin, its power or its distinctive character in particular cases. The third is to treat religion as part of nationalism, and to specify modes of interpenetration and intertwining. The fourth is to posit a distinctively religious form of nationalism. The article concludes by reconsidering the much‐criticised understanding of nationalism as a distinctively secular phenomenon.     

Big boats and bigger skimmers: determining Britain's role in the Long War

While much of the focus in the Trident replacement debate in the UK is on Britain's long-term role as a nuclear power, a second decision is imminent, concerning the acquisition of two large aircraft carriers. In combination, these two projects will do much to determine the UK defence posture for several decades to come and are therefore best analysed together. The decisions are particularly significant when viewed in relation to the post 9/II US defence posture, especially in what is now being termed the 'long war'. The new aircraft carriers will make it possible for the UK military to work closely with the United States in future expeditionary warfare, with all the potential political controversies that might result.     

ANALYSIS,TESTING AND DESIGN OF STEEL ROOF DECK DIAPHRAGMS FOR DUCTILE EARTHQUAKE RESISTANCE

An experimental program was conducted to study the inelastic response of steel roof deck diaphragms for low-rise steel buildings subjected to seismic loading. Tests were performed on 3.6 m×6.1 m diaphragm specimens made of corrugated steel deck panels. The parameters examined were the thickness and configuration of the sheet steel panels, the type and spacing of the fasteners, the applied loading history and the influence of end lap joints. Diaphragms built with screwed side lap fasteners and nailed deck-to-frame connectors exhibited a pinched hysteretic behaviour, but could sustain large inelastic deformation cycles with limited strength degradation. This type of diaphragm construction could be designed to resist earthquake effects in the inelastic range. Higher shear resistance and less pinching was observed for systems that included welded with washer connections. However, their strength decreased rapidly after the peak load was reached, and hence, these systems should be designed for limited inelastic response. Deck systems with button punched side laps and frame welds without washers showed a brittle response and should be designed to remain elastic under severe earthquake motions. The inelastic demand was found to increase when the spacing of the fasteners was reduced. Specimens constructed with an internal overlap joint exhibited extensive warping of the cross section mainly due to the shorter panel length.