A Case of Maternal and Perinatal Death in Neolithic Southern Vietnam,c. 2100–1050 BCE

Despite ostensibly elevated rates of young female mortality in the past, believed to be associated with the risks of pregnancy and child birth, surprisingly few cases of pregnant female burials are reported in the bioarchaeological literature. This paper describes and discusses the case of a young female who died and was interred with an unborn full‐term breech foetus at the Neolithic site of An Son, southern Vietnam c. 2100–1050BCE. Her exceptionally poor oral health, evidence for cribra orbitalia, linear enamel hypoplasia, small stature and compromised gynaecological competence, contributes to a differential diagnosis that explores a range of additional complications that may have contributed to the death of both mother and unborn child. An examination and appreciation of this case contribute to our knowledge of the reproductive age and health of young females in Neolithic Southern Vietnam and the challenges they faced during pregnancy and childbirth. Copyright © 2011 John Wiley & Sons, Ltd.     

Do reluctant voters vote less accurately? The effect of compulsory voting on party–voter congruence in Australia and Belgium

We know compulsory voting is associated with higher levels of electoral turnout. It has been suggested that this leads to a trade-off with the quality of the vote, i.e. the ideological congruence between voters and the party they vote for. In this study, this claim is investigated using data from the 2007, 2010, and 2013 elections in Australia. We also include a comparison with two recent elections in Belgium, another country with compulsory voting. The results show that reluctant voters vote less ideologically congruent, but that this effect is mediated by political knowledge and political interest. However, this does not lead to less ideologically congruent election results at the aggregate level and compulsory voting does not have an impact on electoral results. We speculate that in future studies, it is important to make a distinction between reluctant voters, and those who take a strong hostile stand on the electoral process.     

Prospection of two circular Bronze Age ditches with multi-receiver electrical conductivity sensors (North Belgium)

Two types of electrical conductivity sensors were evaluated to prospect circular ditches surrounding former Bronze Age burial mounds, complementing aerial photography. The first sensor was based on the electrical resistivity (ER) method, while the second sensor was based on frequency-domain electromagnetic induction (FDEM). Both sensors were designed with multiple receivers, which measure several depth sensitivities simultaneously. First, the sensors were tested on an experimental site where a rectangular structure with limited dimensions was dug in a sandy soil. The structure appeared as a higher conductivity anomaly in the low-conductivity sand. Then, both methods were applied on two Bronze Age sites with different soil properties, which were discovered by aerial photography. The first site, in a sandy soil, gave only very weak anomalies. Soil augering revealed that the ditch filling consisted of the same sandy material as the surrounding, therefore this filling was not able to cause a high-conductivity contrast. Due to its lower sensitivity to noise in the low-conductive range, the ER-sensor produced a more pronounced anomaly than the FDEM-sensor. The second site was located on top of a ridge with a shallow substrate of Tertiary, coastal sediments. The ditch was very clearly visible on the sensor maps as a conductive low. At this location, the soil augering revealed that the ditch was dug through an alternating clay-sand layer and subsequently filled up with silty material from the topsoil. Overall, the shallow receiver separation produced anomalies that were both stronger and that corresponded better to the geometry of the ditches. The other receiver separations provided more information on the natural soil layering, and in the case of the ER-array they could be used to obtain a cross-section of the actual electrical conductivity with 2-D inversion modelling. The results of this study proofed that conductivity sensors can detect Bronze Age ditches, with varying contrast depending on the soil geomorphology. Moreover, the sensor maps combined with soil observations by coring provided insight in the environmental conditions that influence the contrast of the anomalies seen on the aerial photographs and the sensor maps.     

Glass gilding process in medieval Syria and Egypt (13th–14th century)

Twelve gilded and enamelled Islamic glass fragments, produced in Syria or Egypt during the Ayyubid or Mamluk period, were provided by the Louvre museum for complete non-destructive analysis. The enamelling process of similar objects has been extensively studied in the last decades, but the gilding process has never been investigated in details. This paper focuses on the understanding of both the gilding process and the gold/glass adhesion mechanism. The structure, composition and thickness of the gold flakes forming the gilding decoration are measured. The complete process combining gilding and enamelling is described and the local mechanism of adhesion of gold flakes on the glass body is discussed.     

Multi-disciplinary research on the past human ecology of the east Arabian coast: excavations at Hamriya and Tell Abraq (Emirate of Sharjah, United Arab Emirates)

The results of two seasons of research at Hamriya and Tell Abraq (Sharjah, UAE) by an international team of researchers are presented. The research has revealed extensive evidence for occupation from c. 5000 BC to the recent past adjoining lagoon areas that face the Arabian Gulf. C¹⁴ analysis of shells has contributed to understanding the chronology of settlement and also assisted our understanding of species-specific deviation from the global reservoir effect.     

The Spatial Distribution of Wages: Estimating the Helpman‐Hanson Model for Germany

Abstract.  Using German district data we estimate the structural parameters of a new economic geography model as developed by Helpman (1998) and Hanson (1998 , 2001a ). The advantage of the Helpman‐Hanson model is that it incorporates the fact that agglomeration of economic activity increases the prices of local (nontradable) services, like housing. This model thereby provides an intuitively appealing spreading force that allows for less extreme agglomeration patterns than predicted by the bulk of new economic geography models. Generalizing the Helpman‐Hanson model, we also analyze the implications for the spatial distribution of wages once the assumption of real wage equalization is dropped. If we no longer assume real wage equalization we find support for a spatial wage structure as well as for the relevance of the structural parameters of the theoretical model.     

Rationalité Contextuelle et Présupposé Cognitif le cas Lombroso

This article proposes an epistemological reflexion about the posture of the historian of human sciences towards his objects. Cesare Lombroso's theory of criminal anthropology was taken here as an example of the discussion because it seemed to be caricatural case. Considering that normative or whiggish perspectives cannot account for the logic of Lombroso's discourse, we attempt to develop here an alternative posture from which extrapolations could be made to other fields. This alternate is found in the introduction of the concepts of contextual rationality and cognitive presupposition and in a reconsideration of the time duration.