A simple methodology for recording petroglyphs using low-cost digital image correlation photogrammetry and consumer-grade digital cameras

In the present study a simple method is described for obtaining 3D digital models of petroglyphs of different sizes and characteristics and its usefulness, in the study of this cultural heritage, is evaluated. For this research we used low-cost photogrammetric software and consumer-grade digital cameras, without any other surveying techniques. In order to test this methodology, three field research studies were carried out in Galicia (Spain).     

Chaining and shaming: images of defeat, from Llyn Cerrig Bach to Sarmitzegetusa

Summary.  This paper seeks to address issues relating to physical restraint, disempowerment and the symbolisms of humiliation, particularly within the contexts of warfare and conquest in Iron Age and Roman Britain and Europe, although the enormous topic of ancient slavery per se is beyond the scope of the present study. The enquiry is based upon evidence from iconography, human remains, the physical paraphernalia of restraint and, for the latest Iron Age onwards, the testimony of such ancient authors as Tacitus. The subject is approached from the perspective not only of empirical material but also from that of social and symbolic theory. Furthermore, in seeking to interpret the relevant material culture, I have deemed it useful to draw broad analogies with other periods and contexts, including the iconography of the ancient Nile Valley and aspects of the nineteenth century French penal system. The material under discussion is scrutinized within contexts of ritual practice and performance, together with presentations of degradation and attitudes to foreignness, subjugation, supremacy and inferiority. Accordingly, questions are raised concerning the symbolic meaning of gang-chains and chain-gangs, grammars of victory-imagery (including somatic position, dimorphism and hair-grasping) and issues associated with shaming the body, whether by means of binding and shackling, violence, head-shaving or sensory deprivation.     

Characterization of prehispanic cosmetics found in a burial of the ancient city of Teotihuacan (Mexico)

The present paper reports the chemical data obtained on samples of pigmenting materials contained in 31 miniature vessels found in a burial found in Teopancazco, a multiethnic neighborhood center located in the southeastern sector of the archaeological site of Teotihuacan (Central Mexico) and the analytical protocol established for the complete characterization of these archaeological materials. For this purpose a multi-technique approach based on the combination of several non destructive and micro-destructive instrumental techniques, namely, light microscopy (LM), scanning electron microscopy-X-ray microanalysis (SEM-EDX), transmission electron microscopy (TEM), voltammetry of microparticles (VMP), X-ray microdiffraction (μXRD), X-ray diffraction (XRD), UV-Vis spectrophotometry, FTIR spectroscopy and gas chromatography-mass spectrometry (GC-MS) has been developed in an attempt to completely characterize these materials. These instrumental techniques provide reliable and complementary data including elemental and mineralogical composition, identification of functional groups as well as speciation studies of electroactive species. Among the most relevant findings, volcanic pyroclastic rocks and clayey soils, most probably, from the Teotihuacan valley as well as galena, jarosite and mica from other provenances in Mesoamerica, have been identified. Charcoal and Ocote resin have also been identified. The chemical composition of the samples is discussed with a view to the possible function as cosmetic materials and their use in funerary rites. The results have been critically compared with those others obtained in other ancient civilizations. The study carried out on the materials found in the burial 105 is especially relevant insofar it represents the first evidence, scientifically characterized, of the use of cosmetics in Mesoamerica at this early period (AD 200-550).     

Refining the Quadratic Crown Height Method of age estimation: do elk teeth wear quadratically with age?

Teeth are the basis for the best methods for estimating the age-at-death of archaeological and paleontological faunal remains, because they change by eruption and wear throughout an individual's life and because they preserve well. However, age-at-death can be difficult to estimate when teeth are isolated or when no known-age reference sample is available. For these reasons, researchers developed the Quadratic Crown Height Method (QCHM), a set of quadratic formulae that can be used to predict age-at-death from tooth crown height, when unworn crown height and the ages when the tooth erupts and when its crown height should reach zero can be estimated. Previous tests of the QCHM suggest that modified equations could improve the method. Here, we use crown height measurements on a sample of 226 known-age Rocky Mountain elk (Cervus elaphus) to perform such modifications. We adjust the age at which each tooth type's crown height reaches zero from the species' potential ecological longevity or average maximum life span to an age that we empirically estimate for each tooth type. We also empirically assess whether for different elk teeth the exponent in the QCHM formula is actually equal to 2; it is for M1, but for P4 it is about 1, indicating a roughly linear relationship. The exponents for M2 and M3 are intermediate, being closer to 1.5. Because different teeth wear at different rates and wear completely away at different ages, we recommend that researchers use the modified equations provided here to estimate age-at-death for samples of Cervus elaphus.     

Legal issues with volunteered geographic information

Volunteered geographic information (VGI) is a relatively new and rapidly developing activity with varying degrees of organization and legal sophistication that involves host sites, contributors, and users. VGI related activities raise a variety of legal issues, from intellectual property to liability, defamation, and privacy. These issues may affect the rights and obligations of all those who use or participate in VGI activities. This article provides an overview of some of these legal considerations from the perspectives of the host, contributor, and user respectively.     

‘The Bond of Civility’: Roger Williams on toleration and its limits

In this article, I examine the meaning of the concept of ‘civility’ for Roger Williams and the role it played in his arguments for religious toleration. I place his concern with civility in the broader context of his life and works and show how it differed from the missionary and civilizing efforts of his fellow New English among the American Indians. For Williams, civility represented a standard of inclusion in the civil community that was ‘essentially distinct’ from Christianity, which properly governed membership in the spiritual community of the church. In contrast to recent scholarship that finds in Williams a robust vision of mutual respect and recognition between co-citizens, I argue that civility constituted rather a very low bar of respectful behavior towards others entirely compatible with a lack of respect, disapproval, and even disgust for them and their beliefs. I show further that civility for Williams was consistent with—and partially secured by—a continued commitment on the part of godly citizens to the potential conversion of their neighbors. Williams endorsed this ‘mere’ civility as a necessary and sufficient condition for toleration while also delineating a potentially expansive role for the magistrate in regulating incivility. Contemporary readers of William who conflate civility with other good things, such as mutual respect, recognition, and civic friendship, slide into a position much like that he was trying to refute.     

The early bivalve radiation in the Ordovician Gondwanan basins of Argentina

The Ordovician diversification is marked by an increase in both marine diversity and ecospace occupation. Bivalves, like other groups, underwent a remarkable diversification in the Early Ordovician. The early phases of such a bivalve diversification took place in the Gondwanan basins of western Argentina. In the Northwestern Argentina (NWA) Basin, three clades originated during late Tremadocian–Floian times. In the Floian successions of the Famatina Basin, a probable basal arcoid is recorded. Genera from these two basins belong to 13 families. Phylogenetic analysis of the NWA heteroconchian bivalves indicates that redoniids and coxiconchinids may have originated during this radiation event. This taxonomic radiation also implies an ecological diversification. Ten guilds are recognized on the basis of bauplan, mode of life, and feeding types. Lifestyles included free endofaunal, free semi-endofaunal, semi-endobyssate, and epibyssate; feeding types included suspensivorous and detritivorous habits. Physiological changes imposed by colonization of low-salinity environments also account for guild definitions. Recent discoveries of Tremadoc to early Darriwilian bivalves from the NWA and Famatina basins indicate that the dominance of higher groups (e.g. Heteroconchia, Pteriomorphia) deviates from the patterns evident in other Gondwanan basins. This agrees with previous ideas supporting the importance of local radiations during the Ordovician diversification. Two new taxa are described, Eoredonia orientalis gen. et sp. nov. and Babinka notica sp. nov., and Coxiconchia sellaensis Sánchez & Babin is first reported from the NWA Basin.     

A STRATEGIC LOGIC FOR ARTS MARKETING

Recent thinking within arts philosophy has moved further and further away from the concept of autonomous art. Nowadays art is mostly seen as an intrinsic part of everyday human life. Artistic value is conceived of more and more as something that depends largely upon experiencing the works as they are encountered within general culture. This relational perspective on art has important implications for the future development of arts marketing as a discipline. This article argues that arts marketing should primarily aim to support and reinforce the artistic functioning of artworks. It proposes that art consumers should be seen as co‐producers in the total art process and advocates that arts marketing should focus on the artistic experience as the core customer value.     

Life As the River Flows: Women in the Malayan Anti-Colonial Struggle

This refreshingly straightforward book mostly lets the narratorsspeak for themselves, but what sociologist Khoo has to say aboutthe process of oral history is also very interesting. Khoo spentfive years living amongst and interviewing ex-guerilla fightersin southern Thailand, including the sixteen women featured here. The term "Malaya" refers to the Malayan peninsula (now the westernstates of Malaysia) and the island of Singapore. The Britishbegan to colonize Malaya in 1786, staying in control until theJapanese occupied the peninsula during World War II. Malayansresisted their Japanese rulers; the British fled. After theJapanese surrendered in 1945, the Malayan People's Anti-JapaneseArmy briefly governed Malaya. The British returned the followingyear.     

Virtual skeletons: using a structured light scanner to create a 3D faunal comparative collection

Appropriate comparative animal skeletons are not always available to faunal analysts for use in identifying archaeofaunal remains. This is especially pertinent when working in locations where no comparative collections are available locally, and the archaeological assemblage cannot be transported to another facility. In order to fill this gap, we are building a virtual comparative faunal collection using a structured light scanner to scan modern skeletal material in 3D. The resulting high resolution 3D color models are a valuable resource for identifying fossil specimens. Scan data can be converted into a variety of formats for viewing and can be transported on a portable digital device for use at field or laboratory localities. In addition, scans can be printed three dimensionally to produce a replica of the scanned skeletal part. A particular advantage of this digital technology is that we can eventually create a complete 3D representation of a taxon's skeleton from scans of several components of what are incomplete skeletons of one animal taxon in a museum collection. The results of our project thus far are available to other researchers and educators by means of the internet. A variety of interested parties could benefit from such a collection, including zooarchaeologists, paleontologists, biologists, teachers and museum curators.