Identifying biomolecular origins of solid organic residues preserved in Iron Age Pottery using DTMS and MVA

The chemical characterisation of solid organic residues found in ceramic vessels, can provide archaeologists with valuable information about ancient diets. Although several selective analytical techniques have been applied to the analysis of specific classes of compounds, such as extractable lipids, waxes, terpenoids and protein fragments, a non-selective analytical technique is required to characterise and categorise complete solid organic residues. In this study, Direct Temperature-resolved Mass Spectrometry (DTMS) is used for the characterisation of 34 solid residues situated on vessels recovered from an indigenous settlement from the Roman period at Uitgeest – Groot Dorregeest (The Netherlands). Sample preparation is limited to grinding very small samples (5–10 μg) and suspending them in water. DTMS analysis of aliquots (1–2 μL) of this suspension gave information about a broad range of organic compounds, such as lipids, polynuclear aromatic hydrocarbons, markers for residual proteins and polysaccharides, and for newly formed complex condensed polymers. Multivariate analysis of the DTMS spectra identified five different chemotypes: groups of residues with comparable chemical characteristics. The biomolecular origin of each of these chemotypes is identified by comparison with experimentally charred reference materials. The chemotypes A₁ and A₂ consist of charred residues identified as starch-rich foods (mixed with animal or plant products), chemotype C consists of protein-rich charred animal products without starch, chemotype B contains smoke condensates from wood fires, and chemotype D consists of special protein-rich and lipid-free foods or non-food products.     

A radiographic study of the extent of variation in cortical bone thickness in soay sheep

In order to assess the effect of nutrition on bone mass, radiographs of metopodia from skeletal collections of Soay sheep (Ovis aries) were taken of animals subject to seasonal stress (from the island of Hirta, Hebrides) and those living in good nutritional conditions (from the Institute of Animal Physiology, Babraham, Cambridge). A third set of radiographs was taken at 3 month intervals over a single year on living Soay sheep kept under good conditions at the Rowett Research Institute, Aberdeen.Measurements were taken on the radiographs of length, minimum shaft width (SW) and medullary cavity width (MCW), while combined cortical thickness (CCT) was calculated. The ewes from Hirta had significantly lower values for CCT than those from Babraham, whereas the rams showed no significant reduction in CCT. Since no seasonal variation in CCT was detected in the well nourished Rowett ewes, this indicates a differential effect of poor environmental conditions on bone metabolism in ewes. It is proposed here that this may be related to the additional stress imposed by gestation and lactation on female animals living under conditions of seasonally restricted food supply.     

The Political,Social and Scientific Contexts of Archaeological Investigations of Mass Graves in Spain

The recovery of historic memory of the Spanish Civil War is a multilayered initiative to escape both the romanticism of the Franco era, in which only the glory of the victors was celebrated while their past atrocities were ignored, and the cautiousness of the post-Franco democracy, for which forced amnesia of the Civil War was considered a sacrifice for the greater good. In the past five years the efforts to recover historic memory have gained empirical footing by employing archaeological methods to locate, enumerate and identify the victims of extrajudicial executions. The ultimate goals of such work include the production of a more accurate historical statement of past events, the repatriation of missing persons to their families, and the documentation of physical evidence that may allow families to seek civil restitutions. While the scientific methodology is fairly straightforward, the process is nonetheless inherently political in that various government bodies can and do impede recovery efforts. This paper contextualizes the current political and social climate of human rights investigations in Spain by illustrating some of the recent recovery efforts in Catalonia and Andalucia.     

Characterization of dyestuffs in ancient textiles from Xinjiang

Extraordinarily well-preserved organic remains from mortuary and settlement sites, including mummified bodies, are scattered along the outer, oasis-laden rim of the Tarim Basin in Xinjiang Province, China, ranging in date from about 1400 BC to the late first millennium BC. Specimens of textile finds from Chärchän, dated at about 1000 BC were selected for dye analysis using newly developed protocols employing high performance liquid chromatography with spectrophotometric and mass spectrometric detection. A single blue (from an indigo plant), a red (from madder, a Rubia species) and two yellow dyes were detected, although the exact plant source for none of them could be identified with certainty. This research offers new insights in the interpretation of textile finds from prehistoric Xinjiang, and more generally, of early Bronze Age Eurasia.     

Fishing ancient Lake Baikal,Siberia: inferences from the reconstruction of harvested perch (Perca fluviatilis) size

Fishing was the foundation for many of the world's foraging peoples and was undertaken using a variety of technologies. Reconstructing fishing technologies can be difficult because these tools were often made of perishable materials. Here we explore fishing technologies employed at the Ityrkhei site on Lake Baikal, Siberia. Specifically, we employ regression analyses to reconstruct the sizes of perch (Perca fluviatilis) captured through time at the site. Our analyses demonstrate that almost no juvenile perch were taken, suggesting some selectivity in harvest. We suggest this selectivity is most consistent with the use of relatively large gauge nets or traps. Such mass harvesting technologies may have been important elements of the subsistence economies of Lake Baikal's foraging peoples throughout much of the Holocene.     

“读经”讨论的思想史研究——以1935年《教育杂志》关于“读经”问题的讨论为例

“读经”问题的讨论往往不仅限于“读经”本身,它所涉及的问题其实更在于思想史。1935年《教育杂志》关于“读经”问题的讨论也不例外。讨论尽管观点不一,但绝大多数都能以“科学”的态度,对传统采取两分法,且反感“尊孔”以及附加于“读经”之上的诸种外在因素,这一点显然是五四新化运动影响的结果。而讨论最终得出的结论,更影响到了今日的教育。     

Chemical evidence for wine production around 4000 BCE in the Late Chalcolithic Near Eastern highlands

Archaeological excavations in the Areni-1 cave complex in southeastern Armenia revealed installations and artifacts dating to around 4000 cal. BCE that are strongly indicative of wine production. Chemical evidence for this hypothesis is presented here using a new method to detect the anthocyanin malvidin that gives grapes and pomegranates their red color. Using solid phase extraction (SPE) and alkaline treatment of the samples, followed by combined liquid chromatography-tandem mass spectrometry (LC-MS/MS), this method was applied to authentic standards and four ancient potsherds from Armenia and Syria. A positive result was observed for two of the samples from the Areni-1 cave complex, adding evidence supporting the hypothesis that wine was produced in the Near Eastern highlands in the Late Chalcolithic Period.     

A case study on the revival of stone quarrying in the late eleventh century: St. Florent,Saumur and Notre-Dame,Noyers

One aspect of the late eleventh-century economic expansion in the west of France was that the abbeys of the region embarked upon an ambitious program of construction. Many houses decided to rebuild their abbey church, while the numerous small chapels and churches they received from the newly emerging class of castellans were rebuilt to serve as priories. All this required large amounts of building stone, which was difficult to obtain. For the abbeys of St. Florent, Saumur (Maine-et-Loire) and Notre-Dame, Noyers (Indre-et-Loire) texts survive that throw light on the intricate social and economic relationships that ultimately provided the abbeys with sources of building stone. One finds that the exploitation of quarries was intimately associated with the proliferation of towns and that the abbeys depended upon secular bequests of both towns and quarries to carry out their construction programs.     

A Centre for Excellence in Education for Sustainable Development

The English higher education landscape has recently experienced a significant change with the addition of 74 Centres for Excellence in Teaching & Learning (CETLs), each one devoted to a particular educational issue or theme. This paper highlights a CETL which is of special interest to geographers in that it is focused on the promotion of education for sustainable development (ESD). The CETL is based at the University of Plymouth, UK, and is tasked with the responsibility of embedding a whole-university approach to sustainability. It will also seek to encourage best practice more widely, working with other institutions regionally, nationally and internationally.     

Greening the University Curriculum: Appraising an International Movement

The declaration of the ‘United Nations Decade of Education for Sustainable Development’ (ESD), Resolution 57/254, February 2003, provides the best yet occasion for higher education institutions (HEIs) to ‘green’ their curricula. The idea for the Decade emerges from a progression of high-level international conferences, beginning with Stockholm, 1972, that have seen ESD thinking move from general statements of intent to increasingly detailed specifications for action. There has also been a growth in awareness that the changes to the curriculum for sustainable development must suffuse all areas of education provision. They cannot be restricted to the environmental disciplines or ‘ecoliteracy’ modules or even to the classroom, but must be demonstrated by the whole of an HEI's approach to the world. Obstacles to implementation include: funding and perverse subsidies, departmental and disciplinary barriers, ivory-tower traditions in teaching that externalize and objectify the subjects studied and persistence of the obsolete mind-sets of the ‘industrial age’. These barriers may mean that change in HEIs will have to be driven by external processes, such as the transformation of primary and secondary education where the fragmentation of knowledge is less entrenched. However, there now seems to be growing agreement that HEIs should equip all their students with ‘environmental literacy’ and that sustainability should be central to concerns both in HEI curricula and in operational practice.