Amid resurgent geopolitical fissures and in the aftermath of the Covid-19 pandemic, there is a growing awareness in the sector of the need for, and concern about, national and international collaboration in archaeological projects. This article reflects on present-day challenges for international collaboration in central Eurasian archaeology and furthers a much-needed discussion about (re)integrating local narratives with inter-regional trends in future research. Responsible and practical proposals for bridging collaborator differences in institutional or publishing obligations, language capacities and access to resources are discussed.

This consensus statement by the Society for Healthcare Epidemiology of America (SHEA) and the Society for Post-Acute and Long-Term Care Medicine (AMDA), the Association for Professionals in Epidemiology and Infection Control (APIC), the HIV Medicine Association (HIVMA), the Infectious Diseases Society of America (IDSA), the Pediatric Infectious Diseases Society (PIDS), and the Society of Infectious Diseases Pharmacists (SIDP) recommends that coronavirus disease 2019 (COVID-19) vaccination should be a condition of employment for all healthcare personnel in facilities in the United States. Exemptions from this policy apply to those with medical contraindications to all COVID-19 vaccines available in the United States and other exemptions as specified by federal or state law. The consensus statement also supports COVID-19 vaccination of nonemployees functioning at a healthcare facility (eg, students, contract workers, volunteers, etc).

Ethnohistoric accounts indicate that the people of Australia's Channel Country engaged in activities rarely recorded elsewhere on the continent, including food storage, aquaculture and possible cultivation, yet there has been little archaeological fieldwork to verify these accounts. Here, the authors report on a collaborative research project initiated by the Mithaka people addressing this lack of archaeological investigation. The results show that Mithaka Country has a substantial and diverse archaeological record, including numerous large stone quarries, multiple ritual structures and substantial dwellings. Our archaeological research revealed unknown aspects, such as the scale of Mithaka quarrying, which could stimulate re-evaluation of Aboriginal socio-economic systems in parts of ancient Australia.

Against the Grain is both a wide-ranging voyage of discovery and a regionally focused study of the trajectory of agriculture from its earliest appearance until historical times, coupled with discussion of the mechanisms that maintained early states. For Scott, the state is a fragile entity (pp. 21, 23, 118, 125) based on the production of grain, along with water transport, city walls, tax collection, specialized administrators, monumental centres, kings, social hierarchy, filth, epidemic disease and an insatiable demand for enslaved labour. With such a definition, there is a little hope that the societies of Eurasian pastoral nomads can be seen as anything other than ‘barbarians’ living outside the laws and hierarchies of agricultural states. It is these Eurasian nomadic pastoralists and their relations with the state that will form the focus of this commentary.

Studies of the Eurasian Bronze Age have tended to emphasise the homogeneity of social and political processes across the Steppe, evidenced by a common ‘package’ of practices and material culture. The Dornod Mongol Survey examines the major stone monumental forms and associated features of the Ulaanzuukh mortuary tradition of the Gobi region of Mongolia. Combining evidence for mortuary and ritual practices, ceramic traditions and new radiocarbon dates, the authors argue that the appearance of the earliest Bronze Age cultures in this region represents a disparate collection of local, regional and inter-regional expressions that challenge the established narrative of a ‘standard’ Eurasian Bronze Age.

Cryo-electron microscopy (cryo-EM) is a powerful tool for macromolecular to near-atomic resolution structure determination in the biological sciences. The specimen is maintained in a near-native environment within a thin film of vitreous ice and imaged in a transmission electron microscope. The images can then be processed by a number of computational methods to produce three-dimensional information. Recent advances in sample preparation, imaging, and data processing have led to tremendous growth in the field of cryo-EM by providing higher resolution structures and the ability to investigate macromolecules within the context of the cell. Here, we review developments in sample preparation methods and substrates, detectors, phase plates, and cryo-correlative light and electron microscopy that have contributed to this expansion. We also have included specific biological applications.

In this article, we look at two very different contexts of monument use – Bronze Age Inner Asia and the Classic period Maya lowlands – in order to explore the function and meanings of monuments and the variety of ways in which they worked to mark and differentiate ancient landscapes. Our goal in uniting such disparate contexts is to examine how power and social organization in these settings were translated into monumental material forms, and how such materializations were experienced by those who viewed and re-interpreted the monuments. In particular, we explore how monuments acted as orientational markers within specific cultural contexts. Our discussion finds common ground between the disparate settings through several common interpretive frameworks focused on spatial, temporal and social orientational work accomplished by active, agentive monuments through their relationships with humans, which we frame as a ‘technology of the monument’. Monuments are instrumental in situating groups within these different layers, or landscapes, of lived experience, yet even while physically fixed, allow for movement through changing meanings and ideas.