Christopher Arthur’s 2022 book The Spectre of Capital presents a systematic-dialectical exposition of the capitalist economy, focussing on the forms of capital. The book is a specific synthesis of much of Arthur’s earlier writings (the relevant works are listed in Arthur 2022: 441–42). Inherently the book goes beyond those earlier writings, because ‘synthesis’ and the associated interconnectedness of ‘moments’ is the true art of the book.

In this paper, we study the cohomology of the unitary unramified PEL Rapoport-Zink space of signature $(1,n-1)$ at hyperspecial level. Our method revolves around the spectral sequence associated to the open cover by the analytical tubes of the closed Bruhat-Tits strata in the special fiber, which were constructed by Vollaard and Wedhorn. The cohomology of these strata, which are isomorphic to generalized Deligne-Lusztig varieties, has been computed in an earlier work. This spectral sequence allows us to prove the semisimplicity of the Frobenius action and the non-admissibility of the cohomology in general. Via p-adic uniformization, we relate the cohomology of the Rapoport-Zink space to the cohomology of the supersingular locus of a Shimura variety with no level at p. In the case $n=3$ or $4$, we give a complete description of the cohomology of the supersingular locus in terms of automorphic representations.

Artificial intelligence is reshaping the contemporary world. Trickling deeper into archaeology and history, these technological changes will influence how the past is written about and visualized. Through the evaluation of text and images generated using AI, this article considers the systemic biases present in reconstructed archaeological scenes. We draw on advances in computer science, running large-scale, computational analyses to evaluate patterns in content. We present a case study examining Neanderthal behavior, juxtaposing published archaeological knowledge with images and text made using AI. Our study reveals a low correspondence between scientific literature and artificially intelligent material, which reflects dated knowledge and cultural anachronisms. Used to identify patterns in (mis)representations of the past, the methodology can be applied to understand the distance between scholarly knowledge and any domain of content generated using AI, across any archaeological time depth and beyond the discipline.

The Arctic is one of the fastest-warming places on Earth. The High Arctic Archipelago of Svalbard contains over 1500 glaciers that have, overall, experienced widespread thinning and recession since the Little Ice Age (LIA; ∼1900 CE), and this recession has accelerated since 1990. Here, we showcase the terminal decline since the end of the LIA of Elsabreen and Ferdinandbreen, two small land-terminating glaciers in Petuniabukta, Dickson Land. We map glacier areal extents using previously published data, aerial photographs and satellite imagery (LIA to 2024) and derive ice volume changes by differencing digital elevation models (1938 to 2023). Both glaciers have lost over 93% of their glacier area since the LIA and over 96% of their ice volume since 1938. By 2024, Elsabreen had reduced to a small glacier remnant with little evidence of ice flow, and Ferdinandbreen had fragmented into several separate ice units and completely detached from its original accumulation areas. Both of these vanishing glaciers merit inclusion on the Global Glacier Casualty List.

Consultation-liaison psychiatry (CLP) refers to the subspecialty of psychiatry and the specialist clinical services that deliver care at the intersection of mental and physical healthcare. CLP services provide specialist medical and multidisciplinary expertise for managing conditions in these areas of mental and physical healthcare overlap, and comorbidity. The Model of Care for CLP was identified as a key priority in Sharing the Vision, the 2020 national mental health policy in Ireland. Following four years of work by a writing group initiated by the Faculty of Liaison Psychiatry at the College of Psychiatrists of Ireland, the Model of Care for CLP in Ireland was launched in May 2025 (Cpsychi H (2025). Consultation-Liaison Psychiatry: A Model of Care for Ireland. Dublin: HSE.).). Consultation-Liaison Psychiatry: A Model of Care for Ireland. Dublin: HSE.). This reflects the collaborative efforts between the Liaison Faculty and the Irish Health Service Executive (HSE). This Model of Care, developed in collaboration with clinicians and patients, the College of Psychiatrists of Ireland, and the HSE, provides a potential template for future collaborations in the development and implementation of National Mental Health policy.

Northern Calabria forms part of the Calabrian Arc, a geologically complex region in southern Italy shaped by the convergence between the Eurasian and African plates. This convergence drove the closure of the Tethys Ocean and produced the subsequent phases of collisional and extensional tectonics. Thrusting during the Alpine orogeny produced extensive nappe stacking, followed by structural reorganization and exhumation during the Oligocene-Miocene. Tectonostratigraphically, the Apennine carbonate platform forms the lowest structural unit, overlain successively by the Liguride Oceanic Complex and the Calabride Complex, which includes the Sila nappe stack. Along Calabria’s eastern Ionian margin, forearc basins developed in response to the retreating subduction zone. To better constrain sediment routing pathways and regional uplift in northern Calabria from early to late Miocene, a multi-proxy provenance study was applied to four forearc basins: Rossano, Cirò, Crotone and Catanzaro. Quantitative heavy-mineral analysis, single-grain garnet and apatite chemistry, and apatite U–Pb chronology reveal spatial and temporal variations in sediment sources. Siliciclastic samples, spanning Aquitanian to Messinian in age, record changing contributions from a combination of low- to high-grade metamorphic and plutonic sources, including mafic Liguride units. Up-section shifts in sediment sourcing patterns indicate that Calabrian Arc exhumation and uplift, characterized by a rapid increase in the middle Miocene followed by a slow reduction in relief, played a pivotal role in controlling the timing and direction of sediment transport. This study demonstrates the benefits of multi-method provenance approaches to achieve valuable insights into relief build-up and demise, associated divide migration and sedimentary responses within a young and complex, zircon-poor orogenic arc system.

Building on Oliver’s (2020) concept of governmentality-effected neglect and applying an ethical lens, this paper examines how ideas and discourse shape migration and social policy during crises, particularly the role of state assumptions in fostering ethical contradictions in policy. We analyse secondary material and original qualitative data from semi-structured interviews with macro-level policymakers, meso-level civil societal actors and individuals at the micro-level directly affected by policy decisions. We argue that the pandemic led to a crisis-induced bricolage of policy, reflecting an ethical void. This approach, rooted in long-standing ideas about the value and role of temporary migrants in Australia, continues to influence policymaking, perpetuating systemic exclusions and reinforcing ethical challenges.