An investigation of soil phosphorus distribution within occupation deposits from a Romano-British hut group

A simple scheme for soil sampling and subsequent analysis for total soil phosphorus using perchloric acid digestion is described and its application illustrated by samples from the native farmstead of the Roman period at Cefn Graeanog in North Wales. The floor deposits of three distinctive buildings were analysed, and the data obtained enhanced by Trend Surface Analysis to produce generalized maps of the phosphorus distribution, together with levels of significance of such distribution patterns. These were then used to clarify the details of the interpretation of the usage of the various types of building. Data for soil phosphorus concentration clearly reveal the pattern of erosion of constructed floors, the presence of features such as hearths and drains, and can be used to reveal patterns not otherwise discernible by excavation techniques.     

Healed injuries in Early Cambrian trilobites from South Australia

Examples of an undescribed species of the trilobite Redlichia from the Emu Bay Shale (Early Cambrian), Kangaroo Island, South Australia, show damage to the exoskeleton attributed to the action of predators. Injury was probably not lethal. The identity of the predators is unresolved, notwithstanding soft-part preservation within the fossil assemblage. Possible culprits include either a rare and presumably large animal such as an arthropod or conceivably cannibalism by Redlichia itself. This report provides new data on the occurrence of Cambrian predators, and casts further doubt on earlier suggestions that macrophagous predation was insignificant at this time. Aspects of trilobite predation during the Palaeozoic are reviewed, with emphasis placed on their ability to withstand substantial injuries and the possible repair mechanisms that promoted wound healing and survival.     

Echoes in the Grand Canyon: Public Catastrophes and Technologies of Control in American Aviation

A series of dramatic mid‐air collisions during the late 1950s caused the United States to embark on a reconstruction of its air traffic control system. In pursuit of the concept of ‘positive control’ over all aircraft, the Federal Aviation Agency modified and deployed military technologies under orders to eliminate these highly public catastrophes. In the process, it curtailed one of flight's great dreams, freedom of the skies, imposing technological and procedural requirements on fliers wanting access to urban airspace. Resistance from private fliers produced modification of some of the agency's plans, causing it to adapt its planned airspace structures to permit private fliers limited access without having to submit to the control system.     

Evidence for size increase in an exploited mollusc: humped conch (Strombus gibberulus) at Chelechol ra Orrak,Palau from ca. 3000–0 BP

Past research has suggested that the humped conch (Strombus gibberulus), a species common in many prehistoric archaeological sites in the Pacific, declines in size and/or abundance over time. Explanations for this phenomenon largely revolve around the possibility that they were overharvested by human populations. In this study, we measured the length and width of over 1400 individual specimens of S. gibberulus shells recovered from the site of Chelechol ra Orrak in Palau, western Micronesia, in deposits dating from ca. 3000 BP to the present. Statistical analysis indicates that in contrast to previous reports, there is a significant size increase for this taxon through time which may be the result of a combination of anthropogenic and environmental factors. We discuss variables influencing mollusc size and suggest that, given the complexities of their interactions and the data limitations of archaeomalacological assemblages, unambiguous determination of the cause(s) of molluscan size change may not always be possible.     

The political geographies of religious sites in Moscow’s neighborhoods

Abstract

This paper addresses the spatial politics of Russia’s increased religiosity in Moscow. It analyzes the rights of minority Muslim communities within the context of increased political support for expressions of Russian Orthodoxy in Moscow’s public space. Moscow’s Russian Orthodox and Muslim religious leaders claim that their communities have a lack of religious infrastructure, with one church per 35,000 residents and one mosque per three million residents, respectively. The Russian Orthodox Church has been more successful than Muslim organizations at expanding their presence in Moscow’s neighborhoods. Drawing on ethnographic fieldwork, religious spaces are examined as sites of dissent as well as participatory, active citizenship at three different sites in Moscow. Protests over Russian Orthodox Church construction in one neighborhood are contrasted with the protests over mosque construction in two neighborhoods. This paper provides insights into how civil society and religious groups have increased their public presence in Moscow and shows the unequal access that different groups have to public space in that city.