Economic development is considered one of the pillars of international peacebuilding. The mandates of the United Nations (UN) peacekeeping operations often contain the promotion of economic growth as a prerequisite for post-conflict recovery and sustainable peace. However, the relationship between peace and economic growth needs re-examination in light of urgent calls for global sustainability and climate action. To do this, I first review the claims and critiques that economic growth is a precondition for peace. I then revisit past peacebuilding cases where the promotion of economic growth has either corresponded with or led to environmental degradation and unequal distribution of resources, contributing to new or renewed forms of violence. Finally, I explore the prospects of post-growth peacebuilding based on recent efforts to make UN peacekeeping operations more attuned to environmental considerations and the changing climate. Post-growth peacebuilding is not just about reducing the environmental footprint of peacekeeping; it is, more importantly, about breaking away from the linear and growth-driven path of peace and development towards intergenerational and ecological justice.

If E is a graph and K is a field, we consider an ideal I of the Leavitt path algebra $L_K(E)$ of E over K. We describe the admissible pair corresponding to the smallest graded ideal which contains I where the grading in question is the natural grading of $L_K(E)$ by ${\mathbb {Z}}$. Using this description, we show that the right and the left annihilators of I are equal (which may be somewhat surprising given that I may not be self-adjoint). In particular, we establish that both annihilators correspond to the same admissible pair and its description produces the characterisation from the title. Then, we turn to the property that the right (equivalently left) annihilator of any ideal is a direct summand and recall that a unital ring with this property is said to be quasi-Baer. We exhibit a condition on E which is equivalent to unital $L_K(E)$ having this property.

The 2 × 2 identity matrix, $${I_2} = \left( \begin{gathered}{\rm{1 \,\,\,0}} \hfill \\{\rm{0 \,\,\,1}} \hfill \\ \end{gathered}\right)$$, has an infinite number of square roots. The purpose of this paper is to show some interesting patterns that appear among these square roots. In the process, we will take a brief tour of some topics in number theory, including Pythagorean triples, Eisenstein triples, Fibonacci numbers, Pell numbers and Diophantine triples.

Obesity is an important characteristic manifestation of metabolic syndrome (MetS), and body roundness index (BRI) is one of the anthropometric indicators associated with obesity. However, studies on the relationship between BRI and MetS risk are limited. We aimed to explore the relationship between baseline BRI and MetS in the USA population. Our study used data from the National Health and Nutrition Examination Survey from 1999 to 2018, ultimately enrolling and analysing 47 303 participants. Data-driven tertiles were used to categorise BRI levels, and multivariate logistic regression models were fitted to investigate the association of BRI with MetS in adults. In addition, receiver operating characteristic curve analysis was used to assess the ability of BRI to predict MetS. The distribution of BRI was different across ethnic groups with a gradual decrease in the proportion of non-Hispanic Whites and other races. In addition, BRI was significantly associated with traditional cardiovascular risk factors. Univariate regression analysis indicated BRI to be a moderate risk factor for MetS, and multivariate logistic regression analysis found that BRI remained an independent risk factor for MetS. After adjusting for confounding variables, a non-linear relationship was found between BRI levels and the prevalence of MetS. More importantly, BRI predicted MetS with the largest AUC among anthropometric measures. In summary, elevated baseline BRI levels are independently associated with the development of MetS, and baseline BRI may assist in identifying patients at risk for MetS, leading to early and optimal treatment to improve their outcomes.

In this paper, we obtain the $H^{p_1}\times H^{p_2}\times H^{p_3}\to H^p$ boundedness for trilinear Fourier multiplier operators, which is a trilinear analogue of the multiplier theorem of Calderón and Torchinsky [4]. Our result improves the trilinear estimate in [22] by additionally assuming an appropriate vanishing moment condition, which is natural in the boundedness into the Hardy space $H^p$ for $0<p\le 1$.

This article focuses on a non-canonical use of negation in historical and modern French, characterized by an apparent absence of meaning: expletive negation. In search of the lost meaning of expletive negation, via a diachronic investigation from Latin to French, we establish that expletive negation originates from prohibitive negation. We put forward an analysis of prohibitive negation within Krifka (2014)'s model of embedded speech-act and propose that expletive negation is the continuation of prohibitive negation, and that it is what remains of a long-gone embedded negative imperative in French. Along this line of analysis, the article brings historical evidence in favour of the hypothesis that languages can develop from speech-act embedding to proposition embedding. Our analysis of prohibitive negation as a clause-typing negation marker in Latin and as a verbal mood negation marker brings new evidence to the claim that sentential and verbal mood marking are two intimately related phenomena.

Calling males of Anastrepha obliqua release volatile compounds to attract conspecific males to form leks and females to mate. Male volatiles from Mexican and Brazilian populations of A. obliqua have been previously identified. However, there are differences in the number and identity of volatile compounds between the populations. These differences in volatile profiles may be due to male origin (e.g. wild or mass-reared flies) or methodological issues (e.g. sampling techniques). In this study, we evaluated the attractiveness of wild, laboratory non-irradiated, and laboratory-irradiated flies under semi-field conditions. Male volatiles were collected using dynamic headspace sampling (DHS) and solid-phase microextraction (SPME) techniques, and identified using gas chromatography-coupled mass spectrometry. The results showed no difference in the attractiveness of wild, laboratory non-irradiated, and irradiated males to females. However, the number of captured females differed according to the origin; wild and non-irradiated females were captured more frequently than the irradiated flies. A total of 21 compounds were found using SPME, whereas only 12 were collected using DHS, although the relative amounts of these compounds were higher than those obtained using the former sampling technique. In addition, only laboratory non-irradiated males released α-pinene and menthol, which have not been previously reported in this fruit fly species. Additionally, we identified novel compounds in A. obliqua; however, certain compounds previously reported were not detected. This study suggests that despite the qualitative and quantitative variations in the volatile profiles of A. obliqua males, their attractiveness was unaffected.

The empire-building phase of the European powers in Africa, which spanned several centuries, had its climax at the infamous Berlin Conference of 1884–1885, where the colonizers carved up and allocated the African continent among themselves as their respective colonial projects. They would subsequently invade virtually all of the continent based on this arbitrary partitioning—which, among other things, created Africa’s colonial condition. Mention must be made of the fact that uncountable numbers of artworks and artefacts were looted by the invaders from various parts of Africa during those invasions and the de facto occupations that ensued. These looted treasures were scattered all over Europe and elsewhere in museums and private collections, where they currently remain largely unaccounted for.