The first direct evidence of pre-columbian sources of palygorskite for Maya Blue

Maya Blue, a nano-structured clay–organic complex of palygorskite and indigo, was used predominantly before the Spanish Conquest. It has fascinated chemists, material scientists, archaeologists and art historians for decades because it is resistant to the effect of acids, alkalis, and other reagents, and its rich color has persisted for centuries in the harsh tropical climate of southern Mesoamerica. One of its components, palygorskite, is part of modern Maya indigenous knowledge, and ethnohistoric and archaeological data suggest that its modern sources were probably utilized in Prehispanic times. Yet no direct evidence verifies that palygorskite was actually mined from these sources to make Maya Blue. Here we characterize these sources compositionally, and compare our analyses to those of Maya Blue from Chichén Itzá and Palenque. We demonstrate that the palygorskite in most of these samples came from modern mines, providing the first direct evidence for the use of these sources for making Maya Blue. These findings reveal that modern Maya indigenous knowledge about palygorskite, its mining, and its source locations, is at least seven centuries old.     

Commodification of indigenous crafts and reconfiguration of gender identities among the Emberá of eastern Panama

This article examines the recent involvement of Emberá indigenous women from eastern Panama in the production and commercialization of handicrafts for national and international markets, using life stories collected in two Emberá communities. Emberá women's increased participation in market economies provides a critical medium through which dominant norms of gender roles are partly reworked and new subjectivities are forged, providing them temporary spaces of authority from within to negotiate relationships with men in domestic spaces. The study does not look for obvious shifts of power inside the household. Instead, it conceptualizes handicraft activities and the conflicts they spark as discursive sites, thus focusing on how women (through their work and purchases) understand themselves and their roles, and how power operates through competing discursive constructions of ‘women’, ‘men’, or ‘work’ in everyday practices. This approach produces a nuanced understanding of the complex reconfiguration of gender relations, and the particular shapes that changing social interactions and meanings of femininity/masculinity take, and it challenges dominant representations of indigenous societies as static and inexorably harmed by capitalist transformation. Findings demonstrate that indigenous women's experiences and realities are multifaceted and dynamic, and that the outcomes of market economies in indigenous communities are complex and ambiguous, rather than uniform and necessarily oppressive.     

Sexual harassment in Korean college classrooms: how self-construal and gender affect students' reporting behavior

This article examines the reasons why women students may hesitate to report sexual harassment. The research draws on the notion of ‘self-construal’. Self-construal is a form of self-identification in social relationships, which in this case relates, in particular, to gender within cultural environments in Korea. For the purposes of this research, a survey was conducted with 298 Korean college students from 7 to 14 March 2006. The results showed that different types of self-construal had different influences on Korean college students' and their reporting of sexual harassment, whereas gender did not. Grounded in the theoretical framework of self-construal, people with independent self-construal were found to express their uncomfortable feelings and to report to the university counseling center, whereas people with interdependent self-construal did not. Furthermore, we found that women were more likely than men to directly express their opinions and report sexual harassment to the university counseling center. Men are also harassed by women colleagues or students but are often more reluctant than women to recognize their experiences as ‘sexual harassment’ because of the stereotype that men are the perpetrators of this behavior, not its victims, and because they fear ‘loss of face.’ It is necessary to engage not just with femininity but also with masculinity and the relationship between these constructs because they are both temporally and geographically contingent.     

Benign mandibular tumours: Two case studies from the Maya lowland site of Tikal,Guatemala

This study presents a differential diagnosis of benign mandibular tumours identified in two adult burials from the precontact Maya city of Tikal, Guatemala. Both individuals were recovered from domestic structures that date to the Late Classic Period (AD 550–850). The osseous growths were interpreted as probable benign tumours based on evidence of localised growth, a circumscribed border, a dense texture and a lack of osteolytic activity or spiculate bone formation. Burial PTP‐026A is a middle adult (35–50 years) of indeterminate sex with evidence of a small dense, circular mass extending laterally from the right mandibular corpus. Macroscopic and radiographic assessment of this lesion provided a diagnosis of osteoma, a true neoplasm, or alternately, hyperplasia (e.g. exostosis) or hamartoma, which are not true neoplasms. Burial PTP‐017 is a probable young adult female (20–35 years) with a large osteoblastic lesion on the right anterior mandibular corpus. This dense, bony mass extends from the anterior margin of the mental canal, and shows a distinct boundary from the adjacent trabecular and cortical bone. The growth of the osseous mass displaced the right first premolar anteriorly. Radiographic assessment showed the presence of dense, radiopaque material, indicating significant calcification. This suggested a likely fibro‐osseous origin for this lesion, with a probable diagnosis of ossifying fibroma, or possibly osseous dysplasia. Although not definitive, our differential diagnosis was able to exclude a number of neoplastic and non‐neoplastic conditions that affect the jaws. This study provides the first reported cases of possible benign mandibular tumours in the ancient Maya. Copyright © 2009 John Wiley & Sons, Ltd.     

Central petén blue pigment: A maya blue source outside of Yucatán,México

Much of the research on Maya Blue has focused on locating palygorskite sources in northern Yucatán, México. To that end, Arnold et al. (2007) reported seven discriminate source mineral locations for palygorskite used in the manufacture of Maya Blue. Recently, a blue pigment was excavated from the archaeological site of Ixlú, El Petén, Guatemala and LA-ICP-MS and INAA analyses were conducted to determine if the pigment had the traditional Maya Blue structure and if it was from one of the seven mineral sources in México. Geochemical analyses demonstrate that the Ixlú pigment has the traditional Maya Blue structure, but it was manufactured from clays in central Petén, Guatemala. These new data suggest that the knowledge of Maya Blue manufacture was transferred and not the actual pigment and they reveal another source for Maya Blue manufacture outside of the Yucatán peninsula.     

Ambiguous immigrants? Examining the changing status of the English in New Zealand

Drawing on a qualitative interview‐based study of English migrants in New Zealand, this article examines, if and how, overseas migration triggers national sentiments that were previously relatively amorphous in their country of origin. In those cases where this occurs, it analyses the diverse and contextual orientations migrants display, and discusses the empirical and analytic challenges posed when seeking to conceptualise a category of persons that have been described as ‘ambiguous immigrants’. The study concludes that research on this ambiguity contributes to debates about the relationship between dominant ethnicity and national identity while highlighting the simplicities of many concepts used to describe and analyse ‘the English’.     

The three spheres. A theoretical model of mass nationalisation: the case of Spain

This article sets out a theoretical model of the processes of mass nationalisation. The paper is divided into three sections. The first part shows nationalisation as a process of identity transmission that includes messages (national narratives), channels (national agencies) and recipients (national individuals). The second section analyses the processes of identity transmission into three spheres of nationalisation: the official public sphere, the non‐official public sphere and the private sphere. The last part looks at the process of mass nationalisation from below and reflects on the mechanisms of individual acquisition and reproduction of national identities on a daily basis. The general model of nationalisation presented here is developed in a deductive way and is applicable to a number of countries all over the world. In this article, I illustrate the general model by giving examples of mass nationalisations in Spain over the last two centuries.     

Evidence for volcanic ash fall in the Maya Lowlands from a reservoir at Tikal,Guatemala

Powder X-ray diffraction and petrographic analyses of reservoir sediments from Tikal, Guatemala have identified significant quantities of decomposed volcanic ash in the form of smectite and euhedral bipyramidal quartz crystals. X-ray fluorescence trace element content analysis was used to eliminate distant Sahara-Sahel and Antilles sources. The Zr/Y and Ni/Cr ratios of reservoir sediment from Tikal are consistent with a source from Central American volcanism (e.g., Guatemalan and Salvadoran). AMS radiocarbon dating of the smectite and crystalline quartz-rich reservoir sediments show that volcanic ash fell during the Preclassic, Classic, and Postclassic Maya cultural periods. It may now be possible to develop an effective chronology of ash fall at Tikal and the greater Peten.