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Abstract: Dental data can reveal evidence for a past population's oral health, nutrition, and certain cultural activities. This study aims to explore oral health and dental attrition during the late Bronze Age in order to explore health outcomes in different subgroups as well as aspects of foodways and changes in subsistence strategies during the second millennium BCE in northwest China. To do this, the skeletal remains of adult individuals associated with the Siwa material culture (1400–1100 BC) from the Mogou site (n = 28) were macroscopically assessed and compared with previously published data derived from a subsample of individuals associated with Qijia period material culture complex (1750–1400 BC) from the same site. The results show that the Siwa‐period population experienced a high frequency of carious lesions and antemortem tooth loss associated with advanced attrition (of both molars and nonmolar teeth), which did not vary significantly by sex. Females had a higher prevalence of carious lesions and antemortem tooth loss than did males, while males had a higher prevalence of dental calculus. These male/female health outcomes are also attested during the earlier Qijia period at the Mogou site. The Siwa period differs from the Qijia in that females experienced slightly worse attrition than their predecessors. Overall, oral health does not diverge significantly between the Qijia and Siwa periods, suggesting that the factors that contributed to oral health including dietary practices may have persisted diachronically for individuals buried at this site.

The natural environment of the Gansu-Qinghai region in northwest China exhibits spatial variation, resulting in distinct adaptive strategies among populations in different geographical areas. In this study, we analyzed the diachronic trend and regional variations in caries prevalence among 10 different middle and late-Holocene groups by examining dental caries data to explore the correlation between different adaptation strategies and caries frequency. Frequency data was used to compare dental caries between populations, and the Chi-square test was employed to detect statistical differences. A multidisciplinary approach was employed to investigate the relationship between these changes and the adaptive strategies adopted by the populations in this region. The result shows that there was a gradual increase in caries prevalence over time in eastern Gansu, which corresponded with development of millet farming and social hierarchy. In the Hexi Corridor, caries prevalence exhibited fluctuations attributable to climate variability, human migration, and regime change. The research proposes that changes in adaptive strategies due to various social and environmental factors are reflected in human teeth, while also presenting a novel endeavor of aggregating a large, multisite bioarchaeological dataset in order to investigate the interactions between Holocene populations and palaeoenvironments in northwest China.

Abstract: Skeletal fluorosis is a systemic chronic disease caused by long‐term intake of excessive fluoride, which accumulates in bone tissue and causes changes to the bone and periosteal tissue. Skeletal fluorosis is rarely considered in paleopathological analyses, but in areas with relatively high fluoride in the environment, it may be an important cause of bone hyperplasia. In this study, we observed pathological lesions consistent with fluorosis on two human skeletons from the Ming Dynasty (1368–1644 CE) excavated from a cemetery in western Henan Province. By using an electron microprobe to measure the fluoride content in the teeth, and by considering the living conditions in the area during the Ming Dynasty, we conclude that the remains show evidence of skeletal fluorosis. We also consider the content of fluoride in the local groundwater, the local way of life, and other factors, to identify potential causes of skeletal fluorosis in this population and demonstrate that environmental factors were the main cause. This offers insight into the relationship between humans and their environments in China, especially western Henan Province, in the historical past. It also demonstrates the unique contributions bioarchaeology can make to environmental health studies and studies of the history of health.

Climate change is an indisputable threat to human health, especially for societies already confronted with rising social inequality, political and economic uncertainty, and a cascade of concurrent environmental challenges. Archaeological data about past climate and environment provide an important source of evidence about the potential challenges humans face and the long-term outcomes of alternative short-term adaptive strategies. Evidence from well-dated archaeological human skeletons and mummified remains speaks directly to patterns of human health over time through changing circumstances. Here, we describe variation in human epidemiological patterns in the context of past rapid climate change (RCC) events and other periods of past environmental change. Case studies confirm that human communities responded to environmental changes in diverse ways depending on historical, sociocultural, and biological contingencies. Certain factors, such as social inequality and disproportionate access to resources in large, complex societies may influence the probability of major sociopolitical disruptions and reorganizations-commonly known as "collapse." This survey of Holocene human-environmental relations demonstrates how flexibility, variation, and maintenance of Indigenous knowledge can be mitigating factors in the face of environmental challenges. Although contemporary climate change is more rapid and of greater magnitude than the RCC events and other environmental changes we discuss here, these lessons from the past provide clarity about potential priorities for equitable, sustainable development and the constraints of modernity we must address.

This article presents outcomes from a Workshop entitled "Bioarchaeology: Taking Stock and Moving Forward," which was held at Arizona State University (ASU) on March 6-8, 2020. Funded by the National Science Foundation (NSF), the School of Human Evolution and Social Change (ASU), and the Center for Bioarchaeological Research (CBR, ASU), the Workshop's overall goal was to explore reasons why research proposals submitted by bioarchaeologists, both graduate students and established scholars, fared disproportionately poorly within recent NSF Anthropology Program competitions and to offer advice for increasing success. Therefore, this Workshop comprised 43 international scholars and four advanced graduate students with a history of successful grant acquisition, primarily from the United States. Ultimately, we focused on two related aims: (1) best practices for improving research designs and training and (2) evaluating topics of contemporary significance that reverberate through history and beyond as promising trajectories for bioarchaeological research. Among the former were contextual grounding, research question/hypothesis generation, statistical procedures appropriate for small samples and mixed qualitative/quantitative data, the salience of Bayesian methods, and training program content. Topical foci included ethics, social inequality, identity (including intersectionality), climate change, migration, violence, epidemic disease, adaptability/plasticity, the osteological paradox, and the developmental origins of health and disease. Given the profound changes required globally to address decolonization in the 21st century, this concern also entered many formal and informal discussions.

Liquidity trading following mutual fund outflows creates a potentially powerful empirical setting in which stock price variation is unrelated to changes in firm fundamentals. Instrumental variables (IVs) drawn from this setting impose an additional assumption that managers sell firms in proportion to portfolio weights. I show that this assumption causes selection bias in these IVs. It misallocates large price impacts to poorly performing, illiquid firms with lower growth – firms that managers systematically avoid selling. Simulations show that selection bias doubles the magnitude of regression coefficients and precludes potential fixes. Numerous recent studies exploiting these IVs should be reevaluated. [ABSTRACT FROM AUTHOR]

I examine whether local bank finance facilitated the transition to a service-based economy in the U.S. I identify a causal role for local finance in service job creation. I use county-level changes to alcohol laws as demand shocks to service employers across a subsample of U.S. counties. Counties with more local finance experience more service job creation. This leads to labor market transitions that reflect shifts in the broader economy. Information asymmetry and collateral constraints connect local finance to service sector employment. The findings identify a unique role for local finance in the evolution to a postindustrial service-based economy. [ABSTRACT FROM AUTHOR]