This paper engages with a series of recent literatures that examine how feminist and queer movements have become agents of nationalism, neoliberalism, and global wars. I argue that, while the critique of intersectionality has attempted to curtail the reproductions of such violence within feminism, it too has not been able to resist cooptations into nationalist and capitalist forms of power. Developing an epistemological critique of intersectionality, I arrive at an analysis of identity politics as an elemental identification with phallic power that erases the feminine. Building on the works of Elizabeth Grosz, Wendy Brown, and Luce Irigaray, I suggest that at the core of such feminist alliances with domination lies an unresolved relation to feminine desire as the desire for a non-identitarian politics.

The delta invariant interprets the criterion for the K-(poly)stability of log terminal Fano varieties. In this paper, we determine local delta invariants for all weak del Pezzo surfaces with the anti-canonical degree $\geq 5$.

Limited academic career prospects are pushing PhD graduates in political science and other disciplines to nonacademic careers. Understanding the mismatch between student and supervisor perceptions of doctoral career training is a starting point for suggesting program reforms. This research note examines the perceptions of PhD students and supervisors on doctoral career training. We compare results from two surveys of English-speaking Canadian universities on doctoral political science programs; one surveys PhD students and the other surveys supervisors. These survey results suggest that 1) students are more aware of the limited academic job market and interested in nonacademic careers than supervisors realize; 2) supervisors are unaware of the sunk costs PhD students face; 3) supervisors and students have different preferences for change in doctoral programs; and 4) students overestimate supervisors’ confidence in preparing them for nonacademic careers. Changes in program design can better meet student needs in these PhD programs.

The exercise of environmental ‘leverage’ via trade-related measures and trade in environmental goods offers opportunities to tackle the climate crisis and advance transnational decarbonization. Inward-looking, adversarial, and short-term national security-centred approaches, however, are disrupting the trade and climate change mitigation linkage. This article employs the race for critical raw materials and US and EU strategies to promote the net-zero transition at the domestic level as case studies to illustrate the environmental pitfalls of the ‘securitization’ of the trade and climate change mitigation nexus. The article demonstrates that the pursuit of strategic dominance in key net-zero sectors, attempts to exclude systemic rivals and reshore supply chains, opportunistic forms of friendshoring and loose agreement on regulatory means jeopardize recourse to environmental ‘leverage’ and undermine decarbonization at both national and transnational levels. This analysis casts a light on the inherent tension between national security and climate change mitigation. Taking stock of these findings, the article advocates a radically different approach to the governance of the trade and climate change mitigation nexus.

The three-dimensional flow field past an I-shaped dual-step cylinder has been obtained by numerical integration of the Navier–Stokes equations at Reynolds number ($Re_D$) 150. The I-shaped cylinder consisted of two large-diameter (D) cylinders with a small-diameter (d) cylinder in between. With a view to exploring the vortex dynamics and structural loads, simulations were performed for eight different lengths $l$ of the small cylinder, varied from $l/D=10$ to 0.2 for a fixed diameter ratio $D/d=2$. When the length of the small cylinder is sufficiently large, the wake behind the I-shaped cylinder is similar to the wake behind the single-step cylinder (Tian et al., J. Fluid Mech., vol. 891, 2020, A24). As the small cylinder length decreases, the enhanced interactions between the two steps make the present wake deviate from the wake of the single-step cylinder, leading to four different wake modes distinguished by different combinations of vortex cells. The physical formation mechanisms were analysed in terms of the vortex dynamics. Besides the wake flow, the streamwise vortices around the I-shaped step cylinder were also investigated. A pair of edge vortices and a junction vortex were identified for $l/D \geq ~1$. When the gap between the two steps becomes too small, $l/D \leq ~0.2$, the junction vortex disappears, and only a pair of edge vortices exists. Varying the distance between the two steps strongly affects the structural loads (drag and lift) along the I-shaped cylinder. The dependence of the loads on $l/D$ was readily explained by the different wake modes.