Ancient bacterial DNA (aDNA) in dental calculus from archaeological human remains

The purpose of this study was to identify reactive bacterial aDNA in archaeological human dental calculus. Dental calculus was collected from a middle/late Neolithic human skull from Hulbjerg passage grave, Langeland, Denmark and prepared for transmission electron microscopy (TEM) or gold-labeled antibody TEM. TEM showed calcified, as well as non-calcified bacteria. Immunogold labeling occurred over the cytoplasmic portions of the sectioned bacteria. The result demonstrated that it is possible to identify aDNA sequences from bacteria in archaeological material of considerable age by this technique.     

‘Old wood’ effect in radiocarbon dating of prehistoric cremated bones?

Numerous reports of successful radiocarbon dating of cremated bones have emerged during the last decade. The success of radiocarbon dating cremated bones depends on the temperature during burning and the degree of recrystallisation of the inorganic bone matrix. During cremation bones undergo major morphological and mineralogical changes which have raised some interesting questions and discussion on the origin of the carbon source in archaeologically cremated bones. Recent laboratory experiments reveal that the properties of the combustion atmosphere play a significant role regarding the source carbon in cremated bones. Thus radiocarbon dating cremated bones is potentially dating the wood used for the cremation fire. Here we compare a high precision radiocarbon dated human bone with an associated dendrochronological age from an oak coffin. We find that the age discrepancy between the dendrochronological age and the cremated bone of 73 ± 26 ¹⁴C yr is best accounted for by the so called ‘old wood’ effect.     

Disclosing mineralogical phases in medioeval iron nails by non-destructive neutron techniques

There is not only one methodology for the study of mineralogical phases in archaeological samples. In this paper, we discuss a strategy applied to ancient iron nail samples completely based on non-destructive analyses. The archaeological samples come from the archaeological site of Valle delle Forme (province of Brescia–Italy) and date back to the 1300–1400 ad. Neutron-based techniques, like time-of-flight neutron diffraction and neutron tomography, have been used to determine the mineralogical composition and the structure of nails. An independent check for the assessment of the presence of different mineralogical phases was given by Raman spectroscopy. The combination of different non-destructive techniques has provided very useful information on their chemical composition, nature of the patina and corrosion features of the nails (also in the bulk of the samples).     

The global,the ethnic and the gendered war: women and rape in eastern Democratic Republic of Congo

The purpose of this study was to illuminate the perspectives of women who experienced sexual violence perpetrated in the warscapes of eastern Democratic Republic of Congo. Civilians are targeted for rape, loot and pillage yielding deleterious effects on the social fabric and the sustenance the community provides. The article is based on 11 qualitative semistructured interviews and 4 written narratives from women of reproductive age, recruited from organizations providing support post-sexual violation. The study departs from a larger ethnographic project investigating the phenomenon of war-rape. Thematic analysis guided the analysis through the theoretical lenses of structural violence and intersectionality. The women expressed total insecurity and a multitude of losses from bodily integrity, health, loss of family, life course possibilities, livelihoods and a sense of place; a profound dispossession of identity and marginalization. Pregnancies resulting from rape reinforced stigma and burdened the survivor with raising a stigmatized child on the margins of society. Perpetrators of rape were mostly identified as Interhamwe (Rwandan Hutus rebels) who entered Congo after the Rwandan genocide in 1994. Their goal, according to the women, was to spread HIV and impregnate Congolese women, thereby destroying families, communities and society. The women survivors of war-rape described experiences of profound loss in this conflict which has global, ethnic and gendered dimensions. Congo's conflict thus requires critical reflection on how local wars and subsequent human suffering are situated in a matrix of globalization processes, enabled by transnational actors and embedded in structural violence.     

Wild and domesticated forms of rice (Oryza sp.) in early agriculture at Qingpu, lower Yangtze, China: evidence from phytoliths

Rice cultivation in parts of the Yangtze valley, eastern China, is thought to date to at least the early Holocene. Using phytolith analysis, sediments from an exposed profile at Qingpu in the lower Yangtze were examined in detail in order to contribute to the growing body of information relating to the history of rice agriculture in the Yangtze delta area. The presence of phytoliths from domesticated rice, Oryza sativa, indicates that rice agriculture was well developed at Qingpu by ca. 2350 BP and may have increased in intensity from ca. 2100 BP. Rice cultivation at Qingpu was comparatively late in relation to other areas in the Yangtze valley, possibly due to the seasonal intrusion of saline waters, while the cultivation of wild rice remained a prominent feature of food production in the area to at least as late as ca. 1800 BP. Results presented here support the existence of a period of overlap, during which both wild and domesticated forms of rice were cultivated, rather than a linear transition from wild to domesticated rice cultivation and the possible influence of environmental factors over farming in an area subjected to frequent flooding.     

‘Walking … just walking’: how children and young people's everyday pedestrian practices matter

This paper considers the importance of walking for many children and young people's everyday lives, experiences and friendships. Drawing upon research with 175 9- to 16-year-olds living in new urban developments in south-east England, we highlight key characteristics of (daily, taken-for-granted, ostensibly aimless) walking practices, which were of constitutive importance in children and young people's friendships, communities and geographies. These practices were characteristically bounded, yet intense and circuitous. They were vivid, vital, loved, playful, social experiences yet also dismissed, with a shrug, as ‘just walking’. We argue that ‘everyday pedestrian practices’ (after Middleton 2010, 2011) like these require critical reflection upon chief social scientific theorisations of walking, particularly the large body of literature on children's independent mobility and the rich, multi-disciplinary line of work known as ‘new walking studies’. In arguing that these lines of work could be productively interrelated, we propound ‘just walking’—particularly the often-unremarked way it matters—as a kind of phenomenon which is sometimes done a disservice by chief lines of theory and practice in social and cultural geography.     

Facing the Future: The Legacies of Post-Neoliberalism in Latin America

This virtual issue reviews the post-neoliberalism literature published in Development and Change between 2012 and 2018. It reflects on recent and ongoing, multiple experiences of resistance to speculative, extractive, inequitable and unsustainable development and the demands for alternatives that emerged in Latin America. The argument is developed through an analysis of the 18 most relevant articles published in this journal, that make a major contribution to three key interrelated debates, namely: the meaning and policies associated with post-neoliberalism; challenges of citizenship and democracy; and the sustainability agenda. Collectively, the selected articles provide a detailed and much-needed discussion about the key achievements, limitations and legacies of post-neoliberalism.