This note presents a new supplement for Euripides, Protesilaus fr. 646a Kannicht.

While transcatheter atrial septal defect closure is routinely performed, acute biventricular failure is an extraordinary complication in adolescents, with only anecdotal reports in the literature. We present a 16-year-old male with borderline left ventricular systolic function and biventricular diastolic dysfunction who developed transient severe biventricular failure immediately following Amplatzer Septal Occluder (Abbott, Plymouth, MN, USA) deployment. Preprocedural echocardiography revealed right ventricular dilation, a D-shaped septum in diastole. Intraprocedural haemodynamic assessment demonstrated elevated right ventricular diastolic pressures (right ventricular minimal diastolic pressure: 11 mmHg; end-diastolic pressure: 17 mmHg). Haemodynamic collapse occurred within minutes of device release, necessitating emergent dopamine infusion and urgent coronary angiography to rule out device-related complications. Remarkably, ventricular function normalised within 2 hours, enabling extubation the same day. Reports of transient biventricular failure following atrial septal defect closure in adolescents without comorbidities are exceedingly rare, underscoring the critical role of preexisting diastolic dysfunction in precipitating acute decompensation. This case advocates for preprocedural balloon occlusion testing and vigilant haemodynamic monitoring in adolescents with impaired ventricular compliance to mitigate catastrophic outcomes.

Rare Earth Elements (REEs) are essential for green energy technologies and defense systems, yet global supply chains remain concentrated in China. This has intensified geopolitical competition for alternative sources, positioning the Arctic as a strategic frontier, as retreating ice exposes mineral deposits. A comprehensive discourse analysis of strategic documents, scholarly literature, and media sources from 2010 to 2025 reveals a dramatic shift from geological characterization and economic speculation to urgent securitization and strategic alliance formation. Academic research has evolved from establishing natural baselines to governance and social conflict analysis. Media coverage of REE in the Arctic peaked in 2025, with rising emphasis on governance, sovereignty, geopolitics, and Greenland’s strategic position. Critical gaps persist in addressing Indigenous rights, holistic impact assessments, and Arctic-specific innovation. Sustainable Arctic REE development requires integrated frameworks that balance geopolitical imperatives with environmental protection and Indigenous self-determination, preventing the region from becoming a sacrifice zone for global decarbonization.

This study investigates experimental luthiery and sound art practices in Latin America through the lenses of postcolonial theory and acoustemology. Within this framework, the musical instrument is conceptualised as a sound-producing object and an active site of cultural representation, historical memory and resistance. These practices, diverging from conventional luthiery traditions, embrace collective, conceptual and material-based modes of production, establishing alternative knowledge systems through sound. Drawing on the works of artists, such as Walter Smetak, Marco Antônio Guimarães, Joaquín Orellana, Wilson Sukorski and Tania Candiani, this study explores how sound mediates relationships with space, the body, memory and technology. Conceptual instrument design is thereby positioned as an aesthetic-political tool developed in parallel with transformations in auditory regimes and responding to epistemic inequalities. This study also focuses on modes of production shaped by technological exclusion, gender and postcolonial identity formation. Experimental luthiery in Latin America is presented as a field of artistic expression and a multilayered epistemic site for the generation of alternative knowledge systems, political subjectivities and spatial justice strategies.

This article will use the records of the Slave Compensation Commission to examine how women experienced and negotiated property- and slave-ownership in nineteenth-century Britain. Demonstrating that women played a crucial role in facilitating the transmission of wealth rooted in enslavement into metropolitan society, it will show how they utilized, manipulated—and were restricted by—the financial mechanisms and legal frameworks that underpinned the British economy. Women’s engagement with the compensation process illustrates both the economic opportunities open to middle- and upper-class women in the early nineteenth century and the ways that female property ownership was mediated and constrained. But we cannot elide the nature of this particular form of “property.” These women were significant players in a system dependent on the violent exploitation of other human beings. The article shows the different ways that British women claimed enslaved people as property: how they used racialized violence to negotiate and wield power in a patriarchal society and to claim, establish, and reinforce their own potentially precarious positions. In doing so, it demonstrates the importance of interrogating the complex nexus of power relations—gendered, racialized, and classed—that shaped how female property- and wealth-holders thought, acted, and behaved in nineteenth-century Britain.

Allocapnia pygmaea Burmeister (Plecoptera: Capniidae) is a winter-active stonefly in North America. Despite the adult’s winter emergence, little is documented about the insect’s cold tolerance and cryoprotective biochemistry. To better understand the cold tolerance of this winter-active stonefly, we collected adult A. pygmaea in Antigonish, Nova Scotia, Canada, during March or April in both 2023 and 2024. Following different cold exposures, we measured the lower limits of activity (–9.3 °C) and the temperature at which internal freezing occurs (–11.9 °C), and we confirmed that A. pygmaea could survive subzero temperatures unless they froze. In control (field-collected) and cold-shocked stoneflies, we assayed the following putative cryoprotectants: proline, glycerol, myo-inositol, trehalose, and glucose. We detected little effect of cold shock on most cryoprotectants, except for the polyols glycerol and myo-inositol, which decreased in concentration following cold shock. These findings improve our current understanding of Capniid cold tolerance, confirm that A. pygmaea uses a freeze-avoidant strategy, and lay a foundation for future studies on how these insects may use cryoprotectants for winter activity.

This paper studies the $4$-ranks of narrow class groups in certain families of quadratic fields. We prove that for any positive integer n, there exists an integer $s_\lambda (n)$ depending on n and the sign $\lambda $ of the fundamental discriminant D, such that for any choice of $s_\lambda (n)$ integers $t_1, \ldots , t_{s_\lambda (n)}$, there are infinitely many D for which the narrow class group of $\mathbb {Q}(\sqrt {D + t_i})$ has $4$-rank bounded by n for all i. This result extends previous work on $3$-ranks to the case of $4$-ranks.

Notating electroacoustic music can be challenging due to the uniqueness of the instruments employed. Electronic instruments can include generative components that can manipulate sound at different time levels, in which parameter variations can correlate non-linearly to changes in the instrument’s timbre. The way compositions for electronic instruments are notated depends on their interfaces and the parameter controls available to performers, which determine the state of their sound-generating system. In this article, we propose a notation system for generative synthesis based on a projection from its parameter space to a timbre space, allowing to organise synthesiser states based on their timbral characteristics. To investigate this approach, we introduce the Meta-Benjolin, a state-based notation system for chaotic sound synthesis employing a three-dimensional, navigable timbre space and a composition timeline. The Meta-Benjolin was developed as a control structure for the Benjolin, a chaotic synthesiser. Framing chaotic synthesis as a specific instance of generative synthesis, we discuss the advantages and drawbacks of the state- and timbre-based representation we designed based on the thematic analysis of an interview study with 19 musicians, who composed a piece using the Meta-Benjolin notational interface.

This study examines intergroup bias among members of the Swedish-speaking minority in Finland—a high-status ethnolinguistic minority group. Drawing on social identity theory and intergroup threat theory, the study explores ingroup favoritism and identifies key predictors of individual-level bias. Using survey data from 1,096 Swedish-speaking Finns, the study uses trait-based evaluations of both ingroup and outgroup members. Results show that intergroup bias is prevalent, particularly in the form of ingroup favoritism for positive traits. Analyses reveal that strong ethnolinguistic identity and perceived intergroup threat significantly predict higher levels of bias, while language identity, Finnish language proficiency, and intergroup contact show no consistent relationships. These findings suggest that even in socially stable and egalitarian contexts, perceived threats to group identity can sustain intergroup bias.

An element x of a lattice L is modular if L has no five-element sublattice isomorphic to the pentagon in which x would correspond to the lonely midpoint. We classify all modular elements of the lattice of all monoid varieties.

This talk examines how corpus linguistics and artificial intelligence treasure the potential to reshape contemporary language learning ecologies. It argues that the rapid normalisation of generative AI has intensified the need for pedagogical models that combine low-friction access to language support with transparent methods grounded in attested usage. Drawing on ecological perspectives and recent empirical research, the talk shows how AI-driven environments expand opportunities for language learning while creating risks related to opacity and over-reliance. Corpus linguistics, data-driven learning and corpus literacy offer a complementary foundation by providing traceable evidence, reproducible analyses, and practices that foster learners’ critical judgement. Two convergence scenarios are proposed: AI as an extension of DDL, and corpus literacy as the operational core of critical AI literacy. Together, these scenarios illustrate how open-box pedagogies can reconcile responsiveness and accountability, ensuring that AI-mediated learning remains anchored in transparent processes and empirically grounded language knowledge.

Experts step into global governance most prominently in times of crisis. But if crisis governance at international organizations (IOs) involves the construction of specific temporal horizons, how do these horizons affect the constitution of expert authority? This article argues that expertise produced under such conditions – to meet a demand for ‘timely’ knowledge – differs substantively from other kinds of expertise. Crisis governance thus contributes in notable ways to the pluralization of expertise. The article examines this phenomenon in the case of the relatively recent proliferation of rapid response mechanisms (RRMs). By examining the making and implementation of RRMs at two major IOs – the World Health Organization and the World Food Programme – the article offers a new understanding for how RRMs have become part of institutional repertoires of expertise. Based on this, it contends that RRM-based timeliness claims a shift in expert knowledge production from credentialed individuals to infrastructures and standardized procedures; second, they prioritize large homogenous datasets over consultation and contestation among different experts; and third, they streamline expert selection such that experts are recruited from existing intra-institutional pools rather than third parties. Jointly, these shifts speed up monitoring and reaction capabilities, but also risk eroding important checks on expert overconfidence.

The Incas territorial expansion process was motivated not only by ideological, political, and economic factors but also involved the ritual integration of ancient sanctuaries through capacocha offerings. Notable examples include the Sacred Rock (Roca Sagrada) of the Island of the Sun (Lake Titicaca) and the Oracle of Pachacamac (Lurín Valley). The antiquity of these two sanctuaries, combined with their roles as destinations for imperial-scale pilgrimages during the Inca period, underscore their significance and uniqueness and the role of the capacocha ritual to connecting places into the Inca world. The material correlates associated with numerous capacocha rituals recorded in the Andes demonstrate that this ritual adhered to standardized conventions and criteria. The canonical archaeological remains of capacocha are characterized by human sacrifices and specific offerings, particularly anthropomorphic figurines made of precious metals or Spondylus. The absence of human corpses in certain contexts can be attributed to taphonomic factors but also to ritual adaptations specific to the locations where they were discovered. In this article, we develop this adaptive model for two of the major sites of Inca cosmology: Lake Titicaca and Pachacamac, emphasizing their close connection to Cuzco, the imperial capital and center of the Inca world.