Turbulent flows exhibit large intermittent fluctuations from inertial to dissipative scales, characterised by multifractal statistics and breaking the statistical self-similarity. It has recently been proposed that the Navier–Stokes turbulence restores a hidden form of scale invariance in the inertial interval when formulated for a dynamically (nonlinearly) rescaled quasi-Lagrangian velocity field. Here we show that such hidden self-similarity extends to the large-eddy-simulation (LES) approach in computational fluid dynamics (CFD). In particular, we show that classical subgrid-scale models, such as implicit or explicit Smagorinsky closures, respect the hidden scale invariance at all scales – both resolved and subgrid. In the inertial range, they reproduce the hidden scale invariance of Navier–Stokes statistics. These properties are verified very accurately by numerical simulations and, beyond CFD, turn LES into a valuable tool for fundamental turbulence research.

This paper analyses the precarious balance between the economic demands of landowners and the defence of public interest in the Tuscan Maremma in a significant time frame for Italian land reclamation (from the 1860s to the 1950s). Increasing productivity in marginal lands was the primary reason for reclamation work, but the considerable investment involved did not always ensure significant gain in land value. Landowners exerted powerful pressure on the state to contribute to the implementation of more complex projects, but the state also needed their co-operation for its territory-wide plans. This new land acquisition fitted into a complex socio-economic context in which poverty, social tensions, health, and sanitation challenges as well as migration demanded incisive political policies which could not always be fully implemented. This essay shows that certain economic factors outweighed others and that, more often than not, the public social policies adopted played into the hands of private economic interests, and the large-scale reclamation work implemented in the Maremma led to the almost total disappearance of a deeply rooted farming tradition, the silvo-pastoral economy.

This article challenges the OECD’s dominant downstream-centric framework on plastic pollution by drawing on long-term ethnographic fieldwork in India, Indonesia and the Philippines. While OECD policies emphasize mismanaged waste and littering in low- and middle-income countries as primary causes of plastic leakage, the authors argue this perspective obscures the structural role of upstream plastic production, driven largely by petrochemical interests in the Global North. Through field data, the article reveals how “leaky” infrastructures – such as incineration plants in India, public–private waste partnerships in Indonesia and grassroots upcycling in the Philippines – fail to contain plastic waste, often exacerbating pollution and exposing communities to toxic emissions and microplastics. The study introduces a conceptual framework of “material and structural leakiness,” emphasizing how plastics and the infrastructures designed to manage them are inherently porous. It critiques the notion of shared responsibility, highlighting how it disproportionately burdens marginalized communities. The authors call for a paradigm shift away from recycling and clean-up as core solutions, advocating instead for upstream interventions like production caps and chemical regulation. The article underscores that without legally binding global commitments to reduce virgin plastic production, the toxic burden of plastic pollution will continue to fall on the most vulnerable populations.

Humanity faces an unprecedented challenge in the necessity to rapidly change behaviors across various life domains to address multiple environmental crises, such as climate change, pollution, and biodiversity loss. This includes the behavior of individuals at work and within organizations. Industrial and organizational (I-O) psychology is uniquely positioned to provide evidence-based recommendations for changing organizational decision-making and behavior toward greater environmental sustainability. Although a substantial body of research on this topic has emerged over the past decade, the discipline has yet to realize its full potential because the topic is currently not prioritized and the practical and societal impact of previous research is limited. This article aims to propel research on environmental sustainability at work forward. To do so, it (a) outlines the interconnections between organizations and environmental sustainability; (b) portrays previous research efforts on environmental sustainability at work, resulting in an integrative conceptual framework across micro, meso, macro, and magno levels; and (c) provides actionable recommendations for high-impact future I-O psychology research and practice related to environmental sustainability. Following an “impact-first” rationale, we identified 10 areas for future research across the four levels of the conceptual framework. For each area, we present relevant theoretical perspectives, methodological approaches, and connections to related disciplines. Finally, we provide suggestions for effective science–practice transfer. Overall, the article seeks to spark discussion on this crucial topic within the community and to inspire I-O psychology researchers and practitioners to contribute to environmental sustainability.

We present a theoretical framework for porous media gravity currents propagating over rigid curvilinear surfaces. By reducing the flow dynamics to low-dimensional models applicable on surfaces where curvature effects are negligible, we demonstrate that, for finite-volume releases, the flow behaviour in both two-dimensional and axisymmetric configurations is primarily governed by the ratio of the released viscous fluid volume to the characteristic volume of the curvilinear surface. Our theoretical predictions are validated using computational fluid dynamics simulations based on a sharp-interface model for macroscopic flow in porous media. In the context of carbon dioxide geological sequestration, our findings suggest that wavy cap rock geometries can enhance trapping capacity compared with traditional flat-surface assumptions, highlighting the importance of incorporating realistic topographic features into subsurface flow models.

This case note analyzes the arbitral tribunal’s assessment in Gabriel Resources v. Romania, focusing on the investors’ “second alternative claim” that Romania’s nomination and subsequent inscription of the Roșia Montană Mining Landscape on the World Heritage List constituted a breach of its obligations under the applicable bilateral investment treaties. It examines whether the tribunal’s reasoning aligns with prior investment case law involving the World Heritage Convention, and it reflects on certain aspects of the award that may warrant closer scrutiny, particularly in light of the potential normative tensions between the protection of host states’ heritage and the rights of foreign investors.

Although choice-of-jurisdiction clauses are routinely enforced by courts in the United States, there are circumstances where they are subject to special scrutiny. One of these circumstances is when the party resisting the clause was not provided with proper notice as to the existence of the clause or the identity of the chosen jurisdiction. This Article first reviews the existing case law in this area and shows that while some U.S. courts have refused to enforce clauses for lack of notice, others do so as a matter of course. It then discusses several decisions where U.S. courts have held that notice may serve as a substitute for consent to bind parties to choice-of-jurisdiction clauses in agreements that they never signed.

The radical right is now able to impose its personnel and its agenda as the ‘new normal’ for a different European Union (EU). Nevertheless, there is still a lack of research into how this normalization is circulated by radical-right members of the European Parliament (MEPs), eager to be part of the social world of the liberal democratic European parliamentarians. This process of normalization is investigated in this article by carrying out a critical discourse analysis of the argumentation used by radical-right MEPs to reject an EU regulation supposed to preserve press freedom, currently threatened by the radical right in many EU member states: the European Media Freedom Act (EMFA). The analysis shows that these MEPs have been keen to use a series of topoi to claim their embeddedness in liberal democracies, while mobilizing symbols and meanings revealing their autocratic roots and their willingness to redefine media freedom.

In this work, we study the effectiveness of the time-localised principal resolvent forcing mode at actuating the near wall cycle of turbulence. This mode is restricted to a wavelet pulse and computed from a singular value decomposition of the windowed wavelet-based resolvent operator (Ballouz et al. 2024b, J. Fluid Mech. vol. 999, A53) such that it produces the largest amplification via the linearised Navier–Stokes equations. We then inject this time-localised mode into the turbulent minimal flow unit at different intensities, and measure the deviation of the system’s response from the optimal resolvent response mode. Using the most energetic spatial wavenumbers for the minimal flow unit – i.e. constant in the streamwise direction and once-periodic in the spanwise direction – the forcing mode takes the shape of streamwise rolls and produces a response mode in the form of streamwise streaks that transiently grow and decay. Though other works such as Bae et al. (2021 J. Fluid Mech. vol. 914, A3) demonstrate the importance of principal resolvent forcing modes to buffer layer turbulence, none instantaneously track their time-dependent interaction with the turbulence, which is made possible by their formulation in a wavelet basis. For initial times and close to the wall, the turbulent minimal flow unit matches the principal response mode well, but due to nonlinear effects, the response across all forcing intensities decays prematurely with a higher forcing intensity leading to faster energy decay. Nevertheless, the principal resolvent forcing mode does lead to significant energy amplification and is more effective than a randomly generated forcing structure and the second suboptimal resolvent forcing mode at amplifying the near-wall streaks. We compute the nonlinear energy transfer to secondary modes and observe that the breakdown of the actuated mode proceeds similarly across all forcing intensities: in the near-wall region, the induced streak forks into a structure twice-periodic in the spanwise direction; in the outer region, the streak breaks up into a structure that is once-periodic in the streamwise direction. In both regions, spanwise oscillations account for the dominant share of nonlinear energy transfer.

Our family album is often the first medium through which we encounter war: nestled in the heart of home life and revisited throughout childhood, its pages intertwine peacetime photos of vacations and gatherings with wartime images featuring smiling soldiers and pastoral landscapes from missions abroad, blending these contrasting realities into one familiar story. This article introduces, for the first time, this overlooked heritage, tracing its roots to WWI – the first conflict photographed by the public. With the outbreak of war, the amateur photography industry, focused on leisure and holidays, came to a halt. Kodak found an unexpected solution: rebranding the camera as a tool to transform harsh realities into peaceful moments by capturing images that portrayed war as joyfully as a summer vacation. It marketed the zoom as a way to avoid violence by keeping it out of the frame while promoting one-click shooting as a means to preserve fleeting moments of beauty amid chaos. The flash was positioned as a source of optimism in dark times, and the family album was framed as a nostalgic object creating a view of the ongoing war as if it had already ended. Capitalizing on witnesses’ longing for peace, this campaign achieved unprecedented success, establishing norms for amateur war photography. This article defines this model that shapes how we see, capture, and share the experience of war, acquiring renewed significance as amateur war photography expands from family albums to the global reach of social media.

Respite for individuals caring for family living with dementia is a common way to take personal time away from caregiving. Other than respite, there is little indication that caregivers receive adequate support from community and healthcare services. As a result, caregivers tend to experience a decline in well-being, due, in part, to a reduction in meaningful leisure experiences. The purpose of this article is to share findings from research aimed at discovering ways to enhance caregiver participation in meaningful leisure. Findings highlight how participants sacrificed their leisure time in favour of caregiving responsibilities and experienced a diminished sense of social connection. Findings also highlight how participants can have their own care needs met through leisure programming that lets them know they matter. We draw from these findings to suggest ways to direct more attention and resources to meeting caregiver needs.

The breakup dynamics of viscous liquid bridges on solid surfaces is studied experimentally. It is found that the dynamics bears similarities to the breakup of free liquid bridges in the viscous regime. Nevertheless, the dynamics is significantly influenced by the wettability of the solid substrate. Therefore, it is essential to take into account the interaction between the solid and the liquid, especially at the three-phase contact line. It is shown that when the breakup velocity is low and the solid surface is hydrophobic, the dominant channel of energy dissipation is likely due to thermally activated jumping of molecules, as described by the molecular kinetic theory. Nevertheless, the viscous dissipation in the bulk due to axial flow along the bridge can be of importance for long bridges. In view of this, a scaling relation for the time dependence of the minimum width of the liquid bridge is derived. For high viscosities, the scaling relation captures the time evolution of the minimum width very well. Furthermore, it is found that external geometrical constraints alter the dynamic behaviour of low and high viscosity liquid bridges in a different fashion. This discrepancy is explained by considering the dominant forces in each regime. Lastly, the morphology of the satellite droplets deposited on the surface is qualitatively compared with that of free liquid bridges.

In the late nineteenth century, the orally transmitted Armenian legend about the folk hero David of Sassoun seemed doomed to oblivion when Ottoman Armenian clergyman Karekin Srvandzdiants published a tiny booklet containing the story that he had learned by chance. Srvandzdiants noted that he would be happy if the story could reach twenty people. Decades later, this hitherto little-known folk legend would be read, and its main heroes celebrated by tens of millions of citizens of the Soviet Union. Scores of variants of the epic were collected from all over the newly established Soviet Armenia; some of the most revered Soviet poets and linguists produced a collated text of the epic and translated it into dozens of languages. More importantly, David of Sassoun and other heroes of the epic cycle came to symbolize the newly forged Soviet Armenian national character in a vast totalitarian empire whose guiding ideology was inimical to various aspects of Armenian traditions. In this article, I examine the underlying messages of the epic, discuss how Soviet policies helped the epic captivate a large audience in a short period, and analyze the political calculations and ideological justifications behind the promotion of the epic.

For an ideal I in a Noetherian ring R, the Fitting ideals $\mathrm{Fitt}_j(I)$ are studied. We discuss the question of when $\mathrm{Fitt}_j(I)=I$ or $\sqrt{\mathrm{Fitt}_j(I)}=\sqrt{I}$ for some j. A classical case is the Hilbert–Burch theorem when $j=1$ and I is a perfect ideal of grade 2 in a local ring.