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In the Nejapa region of Oaxaca, places now categorized by some as archaeological ruins have retained power and meaning through time. Ruins often retain vibrancy and are (and were) typically treated respectfully and carefully. Although many of the sites may no longer be occupied by humans, these ruined or palimpsest places should not be considered entirely abandoned or uninhabited. Some sites in Nejapa, such as Los Picachos and Cerro del Convento, were charged with spiritual valency that inspired people to leave offerings at the sites. Other long unoccupied archaeological sites, such as the ruins of La Baeza, Casa Vieja, and the Pueblo Viejo, were viewed in multiple ways: sometimes approached with trepidation or purposely avoided, and at other times viewed with nostalgia and reverence. Part of what makes ruins powerful and layered with meanings is their association with ancestors and their common connections to memorable, and often difficult, historical events. Thus, ruins play active roles and can at times inspire social actions and at other times entail intentional avoidance.
In contemporary politics, the rise of a leadership style centered on “gaslighting”—persuasion through systematic besmirching, belittling, and the inversion of shared norms—poses profound challenges to democracy. This essay traces the conceptual roots of gaslighting and its uptake as a style of leadership, explores its distinguishing features compared to other manipulative political tactics, and uses the current American situation (that is, the rhetoric of Donald Trump and JD Vance) alongside international examples to illustrate its consequences. Against this backdrop, “adaptive leadership” is advanced as a normative counterweight—one that invites honest engagement with adaptive challenges and bolsters civic trust. The contrast illuminates the stakes for democratic culture as gaslighting erodes the very fabric of orientation, accountability, and mutual respect. It is no exaggeration here to speak of a battle for the soul of democracy.
Cultural heritage occupies a paradoxical position in law: It is protected as property but experienced as a repository of identity, memory, and dignity. This article examines whether cultural heritage could, in principle, be recognized as a subject of law, drawing on emerging developments in environmental and nonhuman personhood. After tracing the historical and conceptual evolution of legal personhood—from human and corporate subjects to nature and ecosystems—it explores the moral, relational, and symbolic dimensions that might justify extending personhood to heritage. The analysis highlights both the potential benefits of such recognition, including stronger ethical and representational protections, and the associated risks, such as legal inflation, state appropriation, and conflicts with ownership and restitution law. Ultimately, it argues that rethinking heritage through the lens of relational personhood reveals the need for a more pluralistic and ethically responsive legal imagination.
Is an autocracy’s official rhetoric a reliable proxy for forecasting military escalation? While the conventional hands-tying mechanism argues that official rhetoric binds leaders to stated positions and limits their ability to back down, recent scholarship on bluster suggests that autocracies may employ hawkish rhetoric to justify de-escalation ex-post. This study evaluates these competing perspectives by analyzing China’s official rhetoric and military behavior in the Taiwan Strait from 2016 to 2022. Employing a word-embedding approach, I construct an original Chinese-language lexicon capturing implicit threats from over two million state-media articles. I show that increases in China’s implicit threats toward Taiwan are associated with a higher likelihood of military escalation, implying that official rhetoric conveys predictive information rather than mere cheap talk.
Resonance lines encode rich information about astrophysical sources and their environments, yet fully analytic treatments of multi-line radiative transfer remain almost entirely unexplored. We present exact, closed-form solutions for steady-state resonant-line radiativeP transfer in “V-shaped” atomic networks, where a single ground state couples to multiple transitions. Starting from the full angle-dependent transfer equation, we generalise absorption and emission coefficients to an arbitrary number of lines, derive a modified Fokker–Planck expansion of the frequency-redistribution integral, and use a judicious change of variables to reduce the problem to a Helmholtz equation with point-like sources in frequency space. This transformation admits analytic solutions for arbitrary sets of lines with fixed frequency offsets and strengths in both slab and spherical geometries. We implement V-shaped line networks in the colt Monte Carlo radiative transfer code and find excellent agreement with the analytic predictions across a wide range of line separations, optical depths, and damping parameters, establishing our solutions as stringent validation benchmarks. For concrete applications related to the Lyman-alpha (Ly$\alpha$) transition of neutral hydrogen, we examine how fine-structure splitting and deuterium injection modify the emergent spectra, internal radiation field, and radiative force multiplier. We show that these effects leave previous conclusions about Ly$\alpha$ feedback in the early universe essentially unchanged. Even when direct observational diagnostics are subtle, our framework provides novel analytic and numerical insights into coupled resonance-line transport and facilitates progress in general modelling of multi-line radiative transfer in diverse astrophysical settings.
This article examines the collecting that occurred after the 2018 referendum to repeal the Eighth Amendment to the Irish Constitution, using the collections database as a lens for understanding how this recent period of Irish history is currently being narrativized. The Eighth Amendment prohibited abortion in almost all circumstances by equating the life of a pregnant person to that of the unborn child; its repeal was a result of four decades of grassroots, feminist campaigning. The collections now being preserved depict this activism, and are made up of campaign documents, photographs, and first-person stories archived from Facebook. Through a close analysis of the database of the Digital Repository of Ireland, where most of these materials are held, this article argues for an interpretation of the database as a political infrastructure, which refracts existing tensions surrounding the future of Irish feminisms and the activist archive. It also examines the database’s politics of visibility in relation to the shame and silence that defined women’s position in Ireland prior to the referendum and advances a theorisation of the archival database as a historiographical technology, which plays an active role in the production of Irish identity in the wake of the Eighth.
The effects of confinement and polydispersity on the shear-induced diffusivity of non-Brownian, neutrally buoyant spheres suspended in a Newtonian fluid are investigated using simulations that incorporate short-range lubrication forces, surface roughness and frictional contacts. Simulations were performed at a fixed volume fraction of 0.45 for multiple values of particle roughness and friction coefficient. Confinement by bounding walls promoted layered structures that suppressed particle mobility and reduced diffusivity, while also diminishing the influence of friction and roughness. In contrast, high polydispersity disrupted layering and enhanced diffusivity, even in confined systems. Polydispersity also led to size-dependent demixing, with smaller particles preferentially migrating towards the walls and exhibiting higher mobility. These results have implications for modelling and controlling transport in suspensions, where confinement and polydispersity alter the effects of friction and roughness on shear-induced diffusion.
Given a weakly almost additive sequence of continuous functions with bounded variation ${\mathcal {F}}=\{\log f_n\}_{n=1}^{\infty }$ on a subshift X over finitely many symbols, we study properties of a function f on X such that $\lim _{n\to \infty }({1}/{n})\int \log f_n\,d\mu =\int f\,d\mu $ for every invariant measure $\mu $ on X. Under some conditions, we construct a function f on X explicitly, and study a relation between the property of ${\mathcal {F}}$ and some particular types of f. As applications, we study images of Gibbs measures for continuous functions under one-block factor maps. We investigate a relation between the almost additivity of the sequences associated to relative pressure functions and the fiber-wise sub-positive mixing property of a factor map. For a special type of one-block factor maps between shifts of finite type, we study necessary and sufficient conditions for the image of a one-step Markov measure to be a Gibbs measure for a continuous function.
The poet of the Odyssey exhibits great artistic flexibility in his handling of the highly conventional elements of early Greek epic: larger themes and narrative patterns, character and episodic doublets and triplets, type-scenes, and even short formulaic phrases. The poet’s presentation of a sequence of ‘just as a father to his own son’ formulas over the course of the Odyssey is examined here, with a view to illustrating how they interact with one another to convey sentiments that are at first genuinely pathetic, arousing in the audience sadness and sympathy, but then increasingly ironic and even sarcastic.
Since May 2022, activists in many countries have been protesting, targeting artworks in famous museums and squares, capturing the attention of citizens, media, and authorities. This new wave of protests was not immune to criticism from bystanders, media, and public institutions. Some governments issued legislation to specifically sanction climate activists who target cultural heritage. Hence, the question arises as to how exposure to such protests affects citizens’ attitudes and behaviors toward the environment. To address that question, this study relies on two original datasets. First, a data collection of all instances of climate protests targeting artwork that occurred from May 2022 to August 2024. Second, an original pre-registered survey experiment (n ≈ 1,000), conducted in August–September 2024 in Italy, where the highest concentrations of such acts of protest were recorded. This paper examines whether exposure to climate protests targeting artwork negatively impacts public opinion levels of environmental concern, pro-environmental voting, and pro-environmental behavior. The results suggest that public opinion does not endorse climate protests targeting artwork, but exposure to them has no meaningful causal effect on their stances on environmental protection.
The classical problem of steady rarefied gas flow past an infinitely thin circular disk is revisited, with particular emphasis on the gas behaviour near the disk edge. The uniform flow is assumed to be perpendicular to the disk surface. An integral equation for the velocity distribution function, derived from the linearised Bhatnagar–Gross–Krook model of the Boltzmann equation and subject to diffuse reflection boundary conditions, is solved numerically. The numerical method fully accounts for the discontinuity in the velocity distribution function that arises due to the presence of the edge. It is found that a kinetic boundary layer forms near the disk edge, extending over several mean free paths, and that its magnitude scales as $\textit{Kn}^{1/2}$ as the Knudsen number $\textit{Kn}$ (defined with respect to the disk radius) tends to zero. A thermal polarisation effect, previously studied for spherical geometries, is also observed in the disk case, with a more pronounced manifestation near the edge that exhibits the same $\textit{Kn}^{1/2}$ scaling. The drag force acting on the disk is computed over a wide range of Knudsen numbers and shows good agreement with existing results for a hard-sphere gas and in the near-free-molecular regime.
This article examines the portrayal of social class and conviviality in Aristophanes’ Wasps 1208–15 and argues that the passage—in which Bdelycleon corrects Philocleon’s clumsy reclining as he prepares to attend an elite symposion—assumes that Philocleon (though a man of modest means) is no novice to reclined symposia, merely to the elegance expected of wealthy symposiasts. It is argued that the exchange between father and son focusses on reclining elegantly rather than on more rudimentary points, and that the passage’s language of haste suggests the matter is viewed as a trivial preliminary to more important components of Philocleon’s sympotic education. The article then considers external evidence supporting the argument that symposia were widespread through the social spectrum in fifth-century Athens, although more modest symposia did not employ costly paraphernalia such as banqueting klinai. Based on this external evidence and on consideration of the terminology in Wasps 1208–15, it is further argued that a klinê would have been used as a prop during the scene and that the scene centres on Philocleon’s unfamiliarity with using this costly piece of furniture rather than on more general ignorance of reclined conviviality. This conclusion has implications for sympotic scholarship, which remains divided on the extent to which symposia were restricted to the wealthy elite in Classical Athens. This article provides support for the position that sympotic conviviality was widespread across the social spectrum and that differences between elite and non-elite symposia centred on paraphernalia (such as banqueting klinai) and behavioural norms.
In Navier–Stokes (NS) turbulence, large-scale turbulent flows inevitably determine small-scale flows. Previous studies using data assimilation with the three-dimensional (3-D) NS equations indicate that employing observational data resolved down to a specific length scale, $\ell ^{\rm 3\text{-}D}_{\ast }$, enables the successful reconstruction of small-scale flows. Such a length scale of ‘essential resolution of observation’ for reconstruction $\ell ^{\rm 3\text{-}D}_{\ast }$ is close to the dissipation scale in three-dimensional NS turbulence. Here, we study the equivalent length scale in two-dimensional (2-D) NS turbulence, $\ell ^{\rm 2\text{-}D}_{\ast }$, and compare with the three-dimensional case. Our numerical studies using data assimilation and conditional Lyapunov exponents reveal that, for Kolmogorov flows with Ekman drag, the length scale $\ell ^{\rm 2\text{-}D}_{\ast }$ is actually close to the forcing scale, substantially larger than the dissipation scale. Furthermore, we discuss the origin of the significant relative difference between the length scales, $\ell ^{\rm 2\text{-}D}_{\ast }$ and $\ell ^{\rm 3\text{-}D}_{\ast }$, based on inter-scale interactions, ‘cascades’ and orbital instabilities in turbulence dynamics.
This paper investigates the negation-free fragment of the bi-connexive logic 2C, called 2C$_-$, from the perspective of bilateralist proof-theoretic semantics (PTS). It is argued that eliminating primitive negation has two important conceptual consequences. First, it requires a reconceptualization of contradictory logics: in a bilateralist framework, contradiction need not be understood in terms of negation inconsistency, but rather as the coexistence of proofs and refutations for certain formulas within a non-trivial system. Second, it challenges the standard definition of connexive logics, which typically rely on negation-based schemata. Instead, a rule-based conception of connexivity, grounded in bilateralist PTS, is proposed. This reconception avoids dependence on the validation of specific formula schemata and thereby also dependence on negation. The paper also addresses the issue of proof–refutation duality in the absence of strong negation, which can be formalized and recovered at a meta-level by extending the system with a two-sorted typed $\lambda $-calculus.