INTERPRETING SPATIAL ECONOMETRIC ORIGIN‐DESTINATION FLOW MODELS

Spatial interaction or gravity models have been used to model flows that take many forms, for example population migration, commodity flows, traffic flows, all of which reflect movements between origin and destination regions. We focus on how to interpret estimates from spatial autoregressive extensions to the conventional regression‐based gravity models that relax the assumption of independence between flows. These models proposed by LeSage and Pace ( 2008 , 2009 ) define spatial dependence involving flows between regions. We show how to calculate partial derivative expressions for these models that can be used to quantify these various types of effect that arise from changes in the characteristics/explanatory variables of the model.     

SPRAWL,BLIGHT, AND THE ROLE OF URBAN CONTAINMENT POLICIES: EVIDENCE FROM U.S. CITIES

U.S. post‐war suburbanization has reshaped the spatial pattern of growth in many metropolitan areas, with population and employment shift toward the suburbs resulting in the urban decay of central cities. This being the case, the adoption of adequate anti‐sprawl policies should lead to a reduction in city blight. Availability of detailed blight measures at the city level enables us to undertake a novel empirical analysis to test this hypothesis. The empirical specification presented here identifies the specific impact of more stringent anti‐sprawl policies adopted at the metro level, proxied by the adoption of urban containment policies, on city blight. Results indicate that the adoption of such policies has effectively contributed to the reduction of downtown deterioration.     

Brewarrina: An Australian Story

This short paper discusses Barry Morris's account of the ‘riot’ at Brewarrina, New South Wales, in 1987 and its legal aftermath, which continued for some years. An iconic event in Australian race relations, much can be learnt from its various dimensions, a fact that Morris amply demonstrates. Notwithstanding, this discussion questions a related narrative in his book, which interprets capitalism's impact on self‐determination simply in terms of neoliberalism's ‘political effects’. The paper seeks to broaden the discussion of the relations between the state and self‐determination, and between capitalism and race.     

Fruits of Their Labour: Urbanisation,Orchard Crops,and Dental Health in Early Bronze Age Jordan

The analysis of dental remains, which outlast most other tissues in the human body, provides insight into past diet, activity patterns and ancestry. The remains from Bab edh‐Dhra' represent the only skeletal sample available to assess the impact of agricultural intensification in the Early Bronze Age of the southern Levant (ca. 3500–2000 bce ). This era ushered in a period of ‘urbanisation’, evidenced by fortified towns, planned roadways, developments in irrigation and growing population density. During this time, the cultivation, trade and consumption of orchard taxa (such as figs, grapes and olives) increased. This paper examines changes in the teeth associated with agricultural intensification involving orchard crops as well as grains. Dental caries, ante mortem tooth loss and dental wear are examined for Early Bronze IA (EBIA; 3500–3300 bce ) and Early Bronze II–III (EBII–III; 3100–2300 bce ) teeth from the site of Bab edh‐Dhra', located in modern‐day Jordan. Due to the commingling, general tooth groups (e.g. molars) and specific tooth types (e.g. lower left canine) were used to compare periods. Although age and sex could not be identified for every tooth, analyses of crania and os coxae showed no significant difference in demographic profiles of EBIA and EBII–III. No statistically significant increase was found over time in dental caries frequency; however, teeth for which the cause of pulp exposure could be determined suggested that caries increasingly led to exfoliation. Indeed, ante mortem tooth loss rose significantly with time, whereas dental wear decreased. In general, changes in oral health were consistent with an archaeological record of greater consumption of softer, stickier foods, such as fruits. Copyright © 2013 John Wiley & Sons, Ltd.     

Origin Narratives and the Making of Dynastic History in al‐Dīnawarī's Akhbār

This article takes the reader on a journey into the historical writing of the ninth century Muslim historian al‐Dīnawarī (d. 895) and examines the motives behind composing his al‐Akhbār al‐?iwāl. The themes and narrative arrangements of this work give insight into al‐Dīnawarī's historical agenda that demonstrates his interest in royal histories that exemplify the rise and fall of nations, dynasties, and powerful rulers. Al‐Dīnawarī's emphasis on specific episodes and events demonstrates that only certain ethnic groups whose political legitimacy derives from a respectable and prominent origin can bring about political and social stability. By dealing with these sociopolitical concerns, this article also sheds new light on the intellectual discourses and political crises that dominated Islamic society during the eighth and ninth centuries and the way al‐Dīnawarī reacted to these challenges.     

Hydrothermal monitoring in a quiescent volcanic arc: Cascade Range,northwestern United States

Ongoing (1996–present) volcanic unrest near South Sister, Oregon, is accompanied by a striking set of hydrothermal anomalies, including elevated temperatures, elevated major ion concentrations, and ³He/⁴He ratios as large as 8.6 R_A in slightly thermal springs. These observations prompted the US Geological Survey to begin a systematic hydrothermal‐monitoring effort encompassing 25 sites and 10 of the highest‐risk volcanoes in the Cascade volcanic arc, from Mount Baker near the Canadian border to Lassen Peak in northern California. A concerted effort was made to develop hourly, multiyear records of temperature and/or hydrothermal solute flux, suitable for retrospective comparison with other continuous geophysical monitoring data. Targets included summit fumarole groups and springs/streams that show clear evidence of magmatic influence in the form of high ³He/⁴He ratios and/or anomalous fluxes of magmatic CO₂ or heat. As of 2009–2012, summit fumarole temperatures in the Cascade Range were generally near or below the local pure water boiling point; the maximum observed superheat was <2.5°C at Mount Baker. Variability in ground temperature records from the summit fumarole sites is temperature‐dependent, with the hottest sites tending to show less variability. Seasonal variability in the hydrothermal solute flux from magmatically influenced springs varied from essentially undetectable to a factor of 5–10. This range of observed behavior owes mainly to the local climate regime, with strongly snowmelt‐influenced springs and streams exhibiting more variability. As of the end of the 2012 field season, there had been 87 occurrences of local seismic energy densities approximately ≥ 0.001 J/m³ during periods of hourly record. Hydrothermal responses to these small seismic stimuli were generally undetectable or ambiguous. Evaluation of multiyear to multidecadal trends indicates that whereas the hydrothermal system at Mount St. Helens is still fast‐evolving in response to the 1980–present eruptive cycle, there is no clear evidence of ongoing long‐term trends in hydrothermal activity at other Cascade Range volcanoes that have been active or restless during the past century (Baker, South Sister, and Lassen). Experience gained during the Cascade Range hydrothermal‐monitoring experiment informs ongoing efforts to capture entire unrest cycles at more active but generally less accessible volcanoes such as those in the Aleutian arc.     

Coupling lead isotope analysis and petrography to characterize fabrics of storage and trade containers from Hala Sultan Tekke (Cyprus)*

Lead isotopes, thin‐ and sherd‐section analyses are coupled on pottery‐vessel fragments excavated from the Late Bronze Age site of Hala Sultan Tekke (south‐east Cyprus) and representing fabrics used for the production of storage and trade containers. The fabrics of the sherds are first described according to general macroscopic observations. Based on the different fabrics identified, a petrographic analysis is carried out on thin sections and compared to lead isotope results on the same samples. This study shows that a specific fabric corresponds to a specific lead isotopic composition and proposes different sources for the various groups of associated sherds/fabrics. It also demonstrates the compatibility and complementarity of petrography and lead isotopes within pottery provenance study.     

Breaking Bones to Obtain Marrow: A Comparative Study between Percussion by Batting Bone on an Anvil and Hammerstone Percussion

The fat‐ and nutrient‐rich marrow of animal bones can be extracted using different techniques. Passive hammerstone percussion has been the primary focus of experimental bone breaking and the main analogy to understand archaeological bone breakage. Here, the term ‘passive’ is applied because the bone to be broken passively receives the impact from a hammerstone. In addition to this technique, there is another bone‐breaking method that also requires direct percussion, but in an active way. This method is percussion by ‘batting’, in which the bone is actively hit against an anvil until the bone breaks. This technique has rarely been considered at an experimental level and, therefore, has been omitted in the majority of the archaeological interpretations of faunal assemblages with pre‐use of fire technologies. In this study, we attempt to analytically characterize this type of bone‐breaking technique through a systematic comparison with hammerstone percussion. The applied statistical tests will allow us to distinguish some diagnostic modifications, such as the outlines of the fracture planes and the type of notches or their location with respect to the longitudinal axis of the bone. These features and their proportions allow the consideration of the use of this technique in Pleistocene anthropogenic faunal assemblages.     

Biomass Spectrometry Identification of the Fibre Material in the Pall Imprint Excavated from Grave M1, Peng‐state Cemetery,Shanxi, China

In order to identify the fibre material of the pall imprint excavated from the Peng‐state cemetery in Shanxi, biomass spectrometry was applied to determine the amino acid sequences of the residual protein extracted from the soil underneath the imprint. The sequences were searched against a standard protein sequence database. A well‐preserved silk pall sample from the Warring States Period was used as a comparative template. The protein extracted is identified as silk fibroin (Bombyx mori). This finding indicates that the extremely degraded pall was made of silk and that the deceased in the Peng‐state cemetery enjoyed high social status. In this way, a novel methodology, which is very promising in uncovering the origin of silk, could be initiated.     

Go East,Young Cadre: Experiments in Inter‐Provincial Training of Party and State Managers in China

This article situates China's local policy experimentation in the broader context of policy experiments in decentralized political systems, through a case study which represents a local state response to China's transition to a market economy. With growing regional and urban–rural inequalities evident after the initial reform period (1978–1994), local party leaders of inland provinces devised strategies for addressing these inequalities and encouraging public–private sector mobility among party officials. County and township‐level leaders pursued local policy experiments in which they selected and sent officials to find private‐sector work in China's booming coastal cities. Initiated in the 1990s and peaking in the 2000s, these policy experiments and inter‐provincial transfers demonstrate the discretion that local officials possess to conduct programmatic/policy experiments in a unitary political system and show how officials resort to extra‐institutional strategies in order to bridge perceived knowledge gaps. The ultimate demise of these programmes illuminates the challenges to extra‐institutional policy innovations in transitioning states.