Ultramicroscopic investigation of the preservation status of hair collected from a full‐term,intrauterine baby mummy of the Joseon Dynasty,Korea

Our previous studies on the ultramicroscopic structure of mummy hair from Joseon Dynasty (1392–1910) tombs sealed with a lime‐soil mixture barrier (LSMB) have provided initial, basic information on their preservation status. Numerous additional cases of various conditions are required in order to provide data sufficient for establishing Korean mummy preservation patterns on a firm basis, however, and so we performed electron microscopic studies on hair taken from a full‐term, intrauterine baby mummy found in Paju, Korea. The baby mummy was found within the uterus of a 16th‐century mummified woman aged 20–30 years old. Since the labour and delivery stage for this case was 2, and the uterus was found to be ruptured, the cause of death of both the mother and the baby was likely to have been hypovolemic shock occurring during labour. In scanning electron microscopic (SEM) and transmission electron microscopic (TEM) studies, we found that the surface of the hair of the baby mummy was coated with crystalline substances, mainly on the side facing the vaginal orifice. We also observed well‐preserved cuticle, cortex and medullar layers, completely preserved cuticle‐layer scales, as well as macrofibrils and melanin granules evenly spread within the cuticle and cortex layers. Because studies on infant or subadult mummies are very few, and since they have focused mainly on the palaeopathological aspects of those mummies, the preservation pattern of the hair of a full‐term baby mummy could contribute significantly to our knowledge of mummies from around the world. Copyright © 2008 John Wiley & Sons, Ltd.     

Ancient bronze technology and nomadic communities of the Middle Gobi Desert,Mongolia

The Xiongnu period of Mongolian prehistory (ca. 3rd century BC–AD 2nd century) is notable for the emergence of an expansive nomadic state and major changes in metallurgical and ceramic technologies. A number of Xiongnu period and pre-Xiongnu period bronze and bronze-related artifacts from the site at Baga Gazaryn Chuluu in the Middle Gobi province of Mongolia were examined for their chemical compositions and microstructures. They include finished objects, leftovers from casting, and pieces of slag from copper smelting and the assemblage likely represents a combination of local and regional production as well as long-distance exchange items. Results show that the entire bronze manufacturing process, from smelting to fabrication, is represented at BGC sites and bronze working may have been technologically self-sufficient, though ore sources are still uncertain. Our evidence suggests that this bronze assemblage was the result of two different technological traditions characterized by either the dominant use of arsenic, enforced apparently by restriction in tin supply, or the profuse use of both tin and lead. The arsenic-based tradition was observed in the majority of pre-Xiongnu period objects while the tin and lead recipes were verified in most objects dating to the Xiongnu period. This shift in bronze tradition may reflect changes in inter-regional interaction with frontier groups beyond the Gobi Desert and with the early state societies of China.     

Blockchain in the EU: Transforming imaginaries and the social making of fnancial regulation

Based on local and online ethnographic research, this article explores how blockchain projects and financial supervisors navigate transforming technological dispositions and interact in constructing regulatory frameworks. While there is a straightforward replacement of revolutionary blockchain narratives with regulatory compliance ones, there is also degree of codependency between regulators and market actors in regulatory negotiation.     

Paleo-parasitological study on the soils collected from archaeological sites in old district of Seoul City

A paleo-parasitological study was performed on soil samples from archaeological sites in the old district of Seoul Metropolitan City (Old Seoul City) where the capital of the Joseon Kingdom was constructed about 600 years ago. The sampling sites were the original locations of the Royal Palace Wall, Yukjo Street and the Royal Arsenal. Microscopic examinations showed that parasite eggs of Clonorchis sinensis, Diphyllobothrium latum, Ascaris sp. and Trichuris sp. remained in the soil strata, which were estimated to represent the 14th-19th centuries. We suspect that the medieval citizens of Old Seoul City, numbering around 200,000, might have been made vulnerable to parasite infection by a combination of bad hygiene, inadequate sewer system and seasonal flooding.     

Intercontinental Hybrid Simulation for the Assessment of a Three-Span R/C Highway Overpass

This paper presents hybrid simulations of a three-span R/C bridge among EU, US, and Canada. The tests involved partners located on both sides of the Atlantic with each one assigned a numerical or a physical module of the substructured bridge. Despite the network latency in linking remote sites located on the two sides of the Atlantic the intercontinental hybrid simulation was accomplished and repeated successfully, highlighting the efficiency, and repetitiveness of the approach. Adaptations, challenges, and limitations are discussed, focusing on the implications of network communication latency, the insensitivity of the sub-structuring arrangement, and the accuracy of the results obtained.     

Hydraulic engineering and irrigation agriculture in the Moche Valley,Peru: c. A.D. 1250–1532

This paper examines the hydraulic properties (i.e. velocity and discharge) of the main late prehistoric canals of the Moche Valley. Velocities, estimated from excavated canal sections using the Manning flow equation, are compared to tables of maximum permissible velocities and reveal that canals were constructed to transport water efficiently, but that on gradients steeper than 1:100 the Chimu and Inca engineers were unable to transport large discharges without severe erosional problems. Discharge estimates are compared with modern field requirements, using a known ethnographic watering cycle. This demonstrates that in almost every instance the channel size was of the same order of magnitude as that predicted from the requirements. The construction of the Inter-valley canal to bring water to the state lands in Moche was a technological disaster.