CHARACTERIZATION OF CORAL RED SLIPS ON GREEK ATTIC POTTERY*

Samples of red and black gloss from Greek Attic pottery of the late sixth to fifth centuries bc were examined using scanning electron microscopy (SEM and FIB/STEM). The focus of the study was the chemical and microstructural characterization of the red gloss that was first produced during this period. Two groupings of red gloss were revealed. One red was found to be compositionally similar to the black glosses (labelled ‘LCM coral red’). The other red showed more significant chemical differences, such as higher calcium and magnesium, in comparison to the black (labelled ‘HCM coral red’). The existence of two chemically distinct reds—otherwise identical in colour and texture—suggests that there was more than one source of clay available to the Attic potters for producing red.     

Osteoporosis among ancient Egyptians

Osteoporosis is a condition of reduced total bone mass per unit volume for the normal ratio of bone mineral to bone matrix. The present work deals with the investigation and evaluation of osteoporosis in ancient Egyptians of two social classes from the Old Kingdom in Giza. The aims of this study are to provide information about the lifestyle and health status of ancient Egyptians, and to detect the causes of osteoporosis. The material consisted of 74 skeletons (43 males and 31 females) from two different social classes (high officials and workers). Skeletons were excavated from the Giza Necropolis and belonged to the Old Kingdom (2687–2191 BC). Dual energy X‐ray absorptiometry (DEXA) was used to measure bone mineral density (BMD) at different skeletal sites (radius, fourth lumbar vertebra and head of femur). Moreover, scanning electron microscopy (SEM) was used to show the microarchitectural structure of the bone. Results showed a significant decrease of BMD values in old age groups compared with younger ones in both sexes. In addition, SEM of trabecular bone in osteoporotic cases demonstrated that the horizontal trabeculae were more affected than the vertical trabeculae. Comparison between high officials and workers revealed that osteoporosis was more frequent in male workers than in male high officials, and in female high officials than in female workers. An elevated prevalence of osteoporosis among male workers may be related to the effects of nutritional stress and excessive workload, while a sedentary lifestyle may have played a role in the occurrence of osteoporosis among female high officials. Moreover, osteoporosis occurs earlier and more frequently in females than males, which may be related to the hormonal changes that accompany the menopause in females. This study emphasises the importance of gender and lifestyle factors in influencing the severity of osteoporosis. Age‐related bone loss at most skeletal sites is noted in both sexes of ancient Egyptians. Copyright © 2008 John Wiley & Sons, Ltd.     

Optical Coherence Tomography for the non-invasive investigation of the microstructure of ancient Egyptian faience

Optical Coherence Tomography (OCT) is a non-invasive subsurface 3D imaging technique based on the Michelson interferometer. The non-invasive nature of OCT and its speed of acquisition makes it possible to image large volumes of intact objects to yield a complete overview of the microstructure. The production methods for ancient Egyptian faience were first investigated using scanning electron microscopy (SEM) imaging of the microstructure in polished sections and microprobe analysis of the composition of the glass phases. These studies were based on original Egyptian faience objects and laboratory reproductions of faience beads made using three different production methods. The microstructure of the same laboratory samples and the Egyptian faience objects from the British Museum Research Laboratory Collection are re-examined using OCT. It is found that OCT virtual cross-section images can be used to group ancient faience objects into three categories on the basis of the morphology of the surface glaze layer and the glaze/core interaction layer. The OCT images correspond well with SEM images of polished sections of ancient faience objects and laboratory reproductions. The virtual cross-sections produced by OCT are somewhat limited by the penetration depth, which is affected by the high absorption coefficient of the material and, therefore, cannot always provide information on the presence or absence of interparticle glass that binds together the quartz particles in the core. Nevertheless, the top two layers are well imaged and since OCT images can be obtained rapidly and without the necessity of removing a sample, the method can be applied to a very much wider range of ancient faience objects than is possible by SEM examination of polished cross-sections. In summary, this paper examines to what extent OCT can assist the investigation of the production techniques of ancient Egyptian faience.     

Combining research-based student fieldwork with staff research to reinforce teaching and learning

This paper addresses the relationship between teaching and research in a fieldwork context by seeking student views over 3 years across two institutions to assess the perceived value of blending staff research activity with student fieldwork. Student views were solicited using questionnaires. Despite the contrasting environments, locations and approaches of the institutions’ respective field courses, student perceptions are remarkably similar. Engaging in research activity in fieldwork (and specifically combining research-based student fieldwork with staff research) is perceived strongly to add value to study for a degree, as well as stimulate interest in the subject and improve understanding of methodologies employed.     

Home–work relations and the spatialization of care: wives on the margins of the Israeli high-tech industry

This study applies the concept of care to examine how home–work transitions of high-tech men affect others in these two places, namely their wives and managers. The high-tech industry is famous for its particularly demanding culture and masculine disposition, which contest daily involvement with family and domestic affairs. Care is conceptualized as a wide-ranging multifaceted notion that embraces work, morals, and policy, and is represented by the exchange of various tangible and intangible, resources across the home–work divide. In-depth interviews with 22 high-tech managers and 47 wives of high-tech engineers disclose a well-established reciprocity of care resources. The managers reward the wives' nonmaterial support of the engineers/husbands with rhetorical recognition and nonfinancial benefits. The spatialization of care across the home–work divide is discussed, pointing to its hierarchical – not only contextual – relations.     

SELECTION AND HEATING OF COLOURING MATERIALS IN THE MOUSTERIAN LEVEL OF ES‐SKHUL (c. 100 000 YEARS BP,MOUNT CARMEL,ISRAEL)

The transformation of yellow goethite into red hematite by heating has long been assumed for Palaeolithic red artefacts excavated close to fireplaces. However, this transformation is extremely rare. Using SEM–FEG–EDX, PIXE–PIGE, TEM and μXRD, we characterized the mineralogical and chemical compositions of four microsamples of colouring materials from the Mousterian layer B in the es‐Skhul rock‐shelter, from about 100 kya ago. For some colouring materials, the Mousterian people of es‐Skhul chose to gather remote yellow lumps for heating. Their significant transport distance provides evidence of the possible high cultural value of these colouring materials for transformation into red pigments.     

Science as propaganda: Swedish scientists and the co-production of American hegemony in Sweden during the cold war, 1953–68

This article takes a close look at how the United States used the funding of scientific research in Sweden as a hegemonic and propaganda tool in the 1950s and 1960s. It shows that non-aligned Sweden functioned just as much as a node in the international science network set up by the Americans after the Second World War as did the North Atlantic Treaty Organization (NATO) countries. These funds were awarded mainly to an elite network of prominent Swedish scientists. The article sheds interesting light on the controversies of such funding in Sweden during the cold war and adds important knowledge about Swedish–American relations during the cold war. The article argues that this Swedish scientific elite co-produced US hegemony in Sweden by actively seeking out American military funding and by making use of it. It also argues that US funding was intended to portray the United States as an altruistic patron of science in the world and thus serve American propagandistic purposes as well.     

Resource nationalism or resource liberalism? Explaining Australia's approach to Chinese investment in its minerals sector

Since 2005, a burgeoning wave of Chinese investments has set off a new ‘minerals boom’ in the Australian iron ore and coal mining sectors. While normally a welcome development, the state-owned and strategic nature of the investors has raised concerns in Australia about how these should be regulated. As a result, in February 2008 the Australian government declared an intention to more closely screen foreign direct investment (FDI) from state-owned sources, which both supporters and detractors alike have claimed is evidence of ‘resource nationalism’ in Australia's approach towards its trade and investment relationships with China. This article challenges this understanding through an examination of the characteristics of Chinese mining FDI, the dilemmas these present to the Australian government, and the relatively restrained nature of its response. Through this, Australia's FDI policy is explained as a defensive move against the potential for strategic behaviour by Chinese investors resulting from their state ownership, rather than any national program to subject minerals trade and investment to political control. On this basis, the article argues that Australian government policy instead evidences a ‘resource liberalism’ approach, which intends to ensure that the governance of Australia's minerals trade and investment with China remain market-based processes.     

‘A dog who I know quite well’: everyday relationships between children and animals

Adult discourses often represent relationships between children and animals as beneficial for children's psycho-social development or as reflecting a ‘natural’ connection between children and animals. In contrast, this paper draws on recent work in sociology and geography where human–animal relationships are seen as socially situated and where conventional constructions of the human–animal boundary are questioned. Focussing on children's own perspectives on their connections with animals, it is argued that these relationships can also be understood within the social and relational context of children's lives. It is argued that this ‘relational’ orientation to children's relationships with animals might significantly enhance our understanding of children's lives and also open up ways of thinking about the place of animals in children's (and adults') social lives.     

MATERIAL CHARACTERIZATION OF CERAMIC TILE MOSAIC FROM TWO 17TH‐CENTURY ISLAMIC MONUMENTS IN NORTHERN INDIA

Coloured tiles from two northern Indian monuments were analysed for their body and glaze composition. The results suggest that three different groups of tiles were used, all comprising a stonepaste body with alkali glaze. One group has strong similarities to a major Indian glass group, known as high alumina mineral natron glass, while the other two are similar to Western and Central Asian plant ash glazes, although with much lower lime content. The colorants conform with those usually employed in pre‐modern glazes, with lead‐tin yellow Type I and Type II for opaque yellow, copper blue‐turquoise, cobalt blue, manganese purple, and green through mixing of lead‐tin yellow and copper blue.