The unique chequered pattern of elephant ivory has made it a desired commodity for the production of various works of art. The demand however outstrips the supply and with soaring prices, illegal tusk harvesting is thriving on the African continent. Formal restrictions placed on trade in elephant products have been ineffective in reversing the rapid decline in elephant numbers. We are presently...

Managing distributed state is a di cult challenge for building scalable, distributed, wide-area applications. This project presents the design of an infrastructure, called Ivory, to simplify construction of distributed applications by automatically caching and replicating data structures and code. We illustrate the use of our infrastructure in service caches that replicate Web service code and ...

An evaluation of reduced-size particle powdering methods for the recovery of usable fingermark ridge detail from elephant ivory is presented herein for the first time as a practical and cost-effective tool in forensic analysis. Of two reduced-size powder material types tested, powders with particle sizes ≤ 40 μm offered better chances of recovering ridge detail from unpolished ivory in comparis...

International trade in ivory is banned in order to protect the African elephant. The trade ban is supported by some range states, because it is seen as an effective means for protecting a ‘flagship’ species, but is opposed by states, mainly in southern Africa, because populations exceed the carrying capacity of local ecosystems. Issues concerning the ivory trade ban are addressed in this paper ...

Abstract Chemical compositional data sets of archaeological artefacts are often analysed using standard statistical procedures. Adopting a different approach, we examine the major element oxides found in Parthian and Sasanian glazed pottery by identifying statistically important ratios conjunction with expert knowledge scientist during, rather than after, identification process. This results me...

the present investigation attempted to develop the ceramic adsorbent media in order to remove the mercury from aqueous phase. two ceramics, akadama volcanic ash soil-ceramic (aceramic) and improved magnesium oxide impregnated akadama volcanic ash soil-ceramic (maceramic) were produced from raw akadama volcanic ash soil by heating process to determine the hg(ii) adsorption capacity. adsorption e...

Managing distributed state is a di cult challenge for building scalable, distributed, wide-area applications. This project presents the design of an infrastructure, called Ivory, to simplify construction of distributed applications by automatically caching and replicating data structures and code. We illustrate the use of our infrastructure in service caches that replicate Web service code and ...